easy opening and resealable packaging with die cut discrete laminate

专利摘要:
The present invention relates to a resealable, easy-open, easy-open package that includes a discrete laminate that includes a tape that includes a base strip coated with a pressure sensitive adhesive, and a panel section having a die cut that defines a die cut segment the panel section adhered by psa to the base strip; the discreet laminate anchored to a first side panel; and a product inside the bag. the die-cut segment is disposed with respect to the pressure sensitive adhesive so that when the package is opened, the package can be resealed by adhering either the first panel of the second panel, and the panel section to the pressure sensitive adhesive.
公开号:BR112012003256A2
申请号:R112012003256
申请日:2010-07-29
公开日:2020-03-31
发明作者:W. Moehlenbrock Andrew
申请人:Cryovac, Inc.；
IPC主号:

专利说明:

Descriptive Report of the Invention Patent for EASY AND RECOVERABLE OPENING PACKAGE WITH DISCREET LAMINATE WITH MATRIX CUTTING.
FIELD OF THE INVENTION
The present invention relates to an easily opened and resealable package with discrete laminate with die cut, and methods for manufacturing the package.
BACKGROUND OF THE INVENTION
Food and non-food products, which include agricultural products, appetizers, cheeses and the like, have long been packed in containers such as bags, bags, or trays with covers or formed sheets made of various thermoplastic materials such as polyethylene, polypropylene or polyester (PET). These containers can be formed from a sheet or sheets of thermoplastic material in a packaging equipment, using various packaging processes, in a processing / packaging facility. Such equipment and processes include forming / filling / horizontal sealing (HFFS), forming / filling / vertical sealing (VFFS), thermoforming / plastic top and continuous horizontal packaging (sometimes referred to as Flow-wrap). In each case, the product is manually or automatically placed inside a pouch, bag, formed sheet, tray, etc., the filled container is optionally evacuated or flushed with gas, and the container mouth is hermetically or not hermetically sealed to close and finish the packaging.
Opening the finished package (that is, opening with the use of tools such as scissors or knives) can provide access to the product by the consumer.
Common in the industry is the use of plastic zipper closures; push-to-close or sliding zippers; interlocking closures; resealable fasteners with interlockable fastener elements; interlockable rib and groove elements that have male and female profiles; alternating hook-shaped closing members interlock
2/109 vehicles, and the like. These terms appear in the patent literature, and to some degree they can overlap in meaning. These characteristics provide refurbishment, and in some cases they can provide an easy opening feature for the packaging. However, such features are not always easy to open or close.
Also relatively common is the use of a pressure sensitive adhesive to provide a reusability feature for a package. However, based on the position of the adhesive in relation to the packaging, the adhesive can sometimes be contaminated by the product contained before the packaging is opened, or once the packaging is opened, when the product is removed from the packaging and comes into contact with the sticker. This phenomenon can compromise the refurbishment of the packaging.
There is a need on the market for packaging, and packaging methods that can be used in a way that requires little or no modification to the packaging equipment of the packer, while providing a feature manually (ie, by hand, without the need for tools). such as scissors or knives) open and easy to reseal, optionally while maintaining the tightness of the packaging when made, and without the use of plastic zipper closures; push-to-close or sliding zippers; interlocking closures; resealable fasteners with interlockable fastener elements; interlockable rib and groove elements that have male and female profiles; alternating interlocking hook-like closing members, and the like.
Some retail packaging does not currently offer an easy and / or resealable feature. Examples are some bags of agricultural products and bags of snacks. In the agricultural products market, there is a need for an economical way to manually open, and repeatedly reseal, bags of retail agricultural products, for example, a packaging made in HFFS, VFFS, thermoforming / plastic top, or continuous horizontal packaging processes .
The present invention relates to packaging, and methods for
3/109 r to make the packaging, the packaging of which is manually openable, and resealable, that is, it can be opened and retraced a number of times, and adapted to package non-food products, as well as food products such as, for example, agricultural products , appetizers, cheese, meat for snacks, sausages, culinary nuts, grain mix etc. The package optionally maintains an airtight seal until the package is opened.
There is also a need on the market for a discreet laminate that can be anchored to a packaging material of choice for the processor to provide easy opening and resealable functionality for packaging made of a sheet / laminate combination with only relatively minor modifications to the packaging material. processor packaging, packaging process or equipment.
SUMMARY OF THE INVENTION
DECLARATION OF THE INVENTION / MODALITIES OF THE INVENTION
In a first aspect, an easily opened and resealable packaging comprises:
a pouch comprising a first and a second side panel each comprising an outer and inner surface, a first and a second side edge, and a first and second end, the first and second side panels joined together along their respective first and second side edges with a seal;
a first end;
a second end defined by the second ends of the first and second side panels, respectively; and a discrete laminate having a first and a second end, the discrete laminate comprising a tape, comprising a base strip comprising a first and a second surface, a first and a second side edge, and a first and a second end at least one of the first and second surfaces of the base strip comprising a seal, and
4/109 a pressure sensitive adhesive coated on at least a first portion of the first surface of the base strip, a panel section comprising an outer and inner surface, a first and a second side edges, and a first and second ends , the inner surface comprising a seal, wherein at least the first portion of the first surface of the base strip is adhered by a pressure sensitive adhesive to a first portion of the inner surface of the panel section, the first end of the panel section is joined on the second side panel, the panel section and the second side panel are joined together along their respective first and second side edges with a seal, the first end of the panel section extends beyond the first end of the base strip, and a die cut is arranged in the panel section, the die cut defining a die cutting segment, the cutting segment p the matrix disposed with respect to the pressure sensitive adhesive so that when the package is opened, the package can subsequently be resealed adhering any one of the first side panel, the second side panel, and the section of the panel to the pressure sensitive adhesive;
wherein the discrete laminate is anchored in the first side panel; and a product arranged inside the bag.
Optionally, according to several modalities of the first aspect of the invention, taken alone or in any suitable combination of these modalities:
- both the first and second surfaces of the base strip comprise a seal.
- at least one of the first and second surfaces of the base strip comprises an easily opened seal.
5/109
- at least one of the first and second surfaces of the base strip is sealed on the inner surface of the first or second side panel respectively with an easily opened seal.
- the first surface of the base strip is sealed on the inner surface of the panel section.
- the inner surface of the panel section comprises an easily opened seal.
- a second part of the outer surface of the panel section is anchored to the inner surface of the first side panel.
- a second portion of the first surface of the base strip is anchored to the inner surface of the first side panel.
- a second portion of the first surface of the base strip is anchored to the inner surface of the first side panel, and a second part of the inner surface of the panel section is anchored to the outer surface of the first side panel.
- a second part of the inner surface of the panel section is anchored to the outer surface of the first side panel.
- a second portion of the second surface of the base strip is anchored to the external surface of the first side panel.
- the first end of the panel section, and the first end of the second panel section, are joined together with a seal.
- the first end of the first panel section, and the first end of the second panel section, are joined together with a fold.
- the second end of the first side panel, and the second end of the second side panel, are joined together with a seal.
- the second end of the first side panel, and the second end of the second side panel, are joined together with a fold.
- the second end of the base strip extends beyond the second end of the panel section.
- the second end of the panel section extends beyond the second end of the base strip.
6/109
- the second end of the panel section is coextensive with the second end of the base strip.
- die cutting is a closed loop.
- the package has no zipper.
- the package does not have a discrete release coating for a PSA coating or coating.
- the package can be opened with a prominent force of 0.98 grams / mm (25 grams / inch) to 89 grams / mm (5 pounds / inch).
- a first portion of the die cut segment is subposed by the pressure-sensitive adhesive, and a second portion of the die cut segment is subposed by a clean area of the first surface of the base strip; the die cut segment is arranged with respect to the discrete tape so that when the die cut segment is moved or removed, at least a portion of the pressure sensitive adhesive is exposed, and at least a portion of the first end of the strip base is exposed.
- the die cutting segment is completely under the base strip.
- the die cutting segment is partially subposed by the base strip.
- when the package is opened, the base strip is not torn through the entire thickness of the base strip.
- the second surface of the base strip is substantially free of PSA.
- the package does not have a discreet cord or tear strip.
the die cut segment includes a first portion in which the die cut extends partially through the panel section, and a second portion in which the die cut extends entirely through the panel section.
- an additional seal seals the panel section at the first end of the base strip.
7/109
- the first side edge of the base strip is arranged between and sealed on the first side edge of the panel section and the second side panel respectively, and the second side edge of the base strip is arranged between and sealed on the second side edge of the panel section panel and the second side panel respectively.
In a second aspect, an easily opened and resealable package comprises a pouch comprising a folded sheet comprising an outer surface and an inner surface, and a first edge and a second edge, a first transverse seal at a first end of the folded sheet. , a second transverse seal at a second end of the folded sheet, and a longitudinal seal that extends along the length of the folded sheet;
a discrete laminate comprising a strip comprising a base strip comprising a first and a second surface, a first and a second end, and a first and a second side edge, at least one of the first and second surfaces of the strip base comprising a seal, a pressure sensitive adhesive coated on at least a first portion of the first surface of the base strip, a panel section comprising an outer and inner surface, a first and a second side edge, and a first and a second second ends, the inner surface comprising a seal, wherein at least the first portion of the first surface of the base strip is adhered by the pressure sensitive adhesive to a first part of the inner surface of the panel section; and a die cut arranged in the panel section, the die cut defining a die cut segment, the die cut segment arranged with respect to the pressure sensitive adhesive so that when
8/109 o the package is opened, the package can be retrofitted by adhering to the folded sheet or the panel section on the pressure sensitive adhesive;
wherein the discrete laminate is sealed in the longitudinal seal in the folded sheet;
wherein the first end of the panel section extends beyond the first end of the base strip; and where the discrete laminate is anchored in the folded sheet; and a product arranged inside the bag.
Optionally, according to various modalities of the second aspect of the invention, taken alone or in any suitable combination of these modalities:
- both the first and second surfaces of the base strip comprise a seal.
- at least one of the first and second surfaces of the base strip comprises an easily opened seal.
- at least one of the first and second surfaces of the base strip is sealed on the inner surface of the folded sheet with an easily opened seal.
- the first surface of the base strip is sealed on the inner surface of the panel section.
- the inner surface of the panel section comprises an easily opened seal.
- a second part of the outer surface of the panel section is anchored to the inner surface of the folded sheet.
- a second portion of the first surface of the base strip is anchored to the inner surface of the folded sheet.
- a second portion of the first surface of the base strip is anchored to the inner surface of the folded sheet, and a second part of the inner surface of the panel section is anchored to the outer surface of the folded sheet.
- a second part of the internal surface of the panel section is
9/109 is anchored on the outer surface of the folded sheet.
- a second portion of the second surface of the base strip is anchored to the outer surface of the folded sheet.
- the second end of the base strip extends beyond the second end of the panel section.
- the second end of the panel section extends beyond the second end of the base strip.
- the second end of the panel section is coextensive with the second end of the base strip.
- die cutting is a closed loop.
- the package has no zipper.
- the package does not have a discrete release coating for a PSA coating or coating.
- the package can be opened with a prominent force of 0.98 grams / mm (25 grams / inch) to 89 grams / mm (5 pounds / inch).
- a first portion of the die cut segment is subposed by the pressure-sensitive adhesive, and a second portion of the die cut segment is subposed by a clean area of the first surface of the base strip; the die cut segment is arranged with respect to the discrete tape so that when the die cut segment is moved or removed, at least a portion of the pressure sensitive adhesive is exposed, and at least a portion of the first end of the strip base is exposed.
- the die cutting segment is completely under the base strip.
- the die cutting segment is partially subposed by the base strip.
- when the package is opened, the base strip is not torn through the entire thickness of the base strip.
- the second surface of the base strip is substantially free of PSA.
- the package does not have a discreet cord or tear strip
10/109 ment.
the die cut segment includes a first portion in which the die cut extends partially through the panel section, and a second portion in which the die cut extends entirely through the panel section.
- an additional seal seals the panel section at the first end of the base strip.
In a third aspect, a method for making an easily opened and resealable package in a horizontal forming / filling / sealing process comprises providing a flat laid sheet comprising a first and a second surface;
providing a discrete laminate having a first and a second end, the discrete laminate comprising a tape comprising a base strip comprising a first and a second surface, a first and a second side edge, and a first and a second end, at least one of the first and second surfaces of the base strip comprising a seal, and a pressure sensitive adhesive coated on at least a first portion of the first surface of the base strip, a panel section comprising an outer and inner surface, a first and a second side edge, and a first and a second end, the inner surface comprising a seal, wherein at least the first portion of the first surface of the base strip is adhered by the pressure sensitive adhesive to a first part of the inner surface of the panel section, and a die cut arranged on the panel section, the die cut defining an s die cutting segment;
advancing the flat sheet to a forming device for converting the flat sheet to a folded sheet;
advance the discreet laminate so that when the packaging
11/109 is made, the discreet laminate is part of the packaging;
make side seals on the folded sheet and the discreet laminate;
cutting the folded sheet and the discrete laminate to produce an open pouch comprising a first and a second side panel each comprising an outer and inner surface, a first and a second side edges, and a first and second ends, the first and second the second side panels joined together along their respective first and second side edges by a seal, the panel section and the second panel section joined along their respective first and second side edges by a seal, the first end of the section panel joined at the second side panel, and the first end of the panel section extending beyond the first end of the base strip;
put a product inside the open bag; and sealing the first end of the bag to close the bag;
wherein the die cut segment is arranged with respect to the pressure sensitive adhesive so that when the package is opened, the package can subsequently be resealed adhering to any of the first side panel, the second side panel, and the panel section pressure sensitive adhesive; and where, at any time during or before placing the product in the open pouch, the discrete laminate is anchored to the flat laid sheet, the folded sheet, or the first side panel.
Optionally, according to various modalities of the third aspect of the invention, taken alone or in any suitable combination of these modalities:
- both the first and second surfaces of the base strip comprise a seal.
- at least one of the first and second surfaces of the base strip comprises an easily opened seal.
- at least one of the first and second surfaces of the strip
12/109 base is sealed on the inner surface of the first or second side panel respectively with an easy-to-open seal.
- the first surface of the base strip is sealed on the inner surface of the panel section.
- the inner surface of the panel section comprises an easily opened seal.
- a second part of the outer surface of the panel section is anchored to the inner surface of the first side panel.
- a second portion of the first surface of the base strip is anchored to the inner surface of the first side panel.
- a second portion of the first surface of the base strip is anchored to the inner surface of the first side panel, and a second part of the inner surface of the panel section is anchored to the outer surface of the first side panel.
- a second part of the inner surface of the panel section is anchored to the outer surface of the first side panel.
- a second portion of the second surface of the base strip is anchored to the external surface of the first side panel.
- the first end of the panel section, and the first end of the second side panel, are joined together with a seal.
- the first end of the first panel section, and the first end of the second panel section, are joined together with a fold.
- the second end of the first side panel, and the second end of the second side panel, are joined together with a seal.
- the second end of the first side panel, and the second end of the second side panel, are joined together with a fold.
- the second end of the base strip extends beyond the second end of the panel section.
- the second end of the panel section extends beyond the second end of the base strip.
- the second end of the panel section is coextensive with
13/109 the second end of the base strip.
- die cutting is a closed loop.
- the package has no zipper.
- the package does not have a discrete release coating for a PSA coating or coating.
- the package can be opened with a prominent force of 0.98 grams / mm (25 grams / inch) to 89 grams / mm (5 pounds / inch).
- a first portion of the die cut segment is subposed by the pressure-sensitive adhesive, and a second portion of the die cut segment is subposed by a clean area of the first surface of the base strip; the die cut segment is arranged with respect to the discrete tape so that when the die cut segment is moved or removed, at least a portion of the pressure sensitive adhesive is exposed, and at least a portion of the first end of the strip base is exposed.
- the die cutting segment is completely under the base strip.
- the die cutting segment is partially subposed by the base strip.
- when the package is opened, the base strip is not torn through the entire thickness of the base strip.
- the second surface of the base strip is substantially free of PSA.
- the package does not have a discreet cord or tear strip.
the die cut segment includes a first portion in which the die cut extends partially through the panel section, and a second portion in which the die cut extends entirely through the panel section.
- an additional seal seals the panel section at the first end of the base strip.
- the first side edge of the base strip is arranged between and
14/109 sealed on the first side edge of the panel section and the second side panel respectively, and the second side edge of the base strip is arranged between and sealed on the second side edge of the panel section and the second side panel respectively.
In a fourth aspect, a method for making an easily opened and resealable package in a horizontal forming / filling / sealing process comprises providing a flat laid sheet comprising a first and a second surface;
providing a discrete laminate having a first and a second end, the discrete laminate comprising a tape comprising a base strip comprising a first and a second surface, a first and a second side edge, and a first and a second end, at least one of the first and second surfaces of the base strip comprising a seal, and a pressure sensitive adhesive coated on at least a first portion of the first surface of the base strip, a panel section comprising an outer and inner surface, a first and a second side edge, and a first and a second end, the inner surface comprising a seal, wherein at least the first portion of the first surface of the base strip is adhered by the pressure sensitive adhesive to a first part of the inner surface of the panel section, and a die cut arranged on the panel section, the die cut defining an s die cutting segment;
where the discreet laminate is anchored in the flat laid sheet;
advancing the flat sheet with the discrete laminate anchored to it to a forming device for converting the flat sheet into a folded sheet;
make side seals on the folded sheet and on the laminate discreet
10/159 to;
cutting the folded sheet and the discrete laminate to produce an open pouch comprising a first and a second side panel each comprising an outer and inner surface, a first and a second side edges, and a first and second ends, the first and second the second side panels joined together along their respective first and second side edges by a seal, the panel section and the second side panel joined along their respective first and second side edges by a seal, the first end of the section of panel joined to the second side panel, and the first end of the panel section extending beyond the first end of the base strip; and the discrete laminate anchored in the first side panel;
put a product inside the open bag; and sealing a first end of the pouch to close the pouch;
wherein the die cut segment is arranged with respect to the pressure sensitive adhesive so that when the package is opened, the package can subsequently be resealed adhering to any of the first side panel, the second side panel, and the panel section pressure sensitive adhesive.
Optionally, according to various modalities of the fourth aspect of the invention, taken alone or in any suitable combination of these modalities:
- both the first and second surfaces of the base strip comprise a seal.
- at least one of the first and second surfaces of the base strip comprises an easily opened seal.
- at least one of the first and second surfaces of the base strip is sealed on the inner surface of the first or second side panel respectively with an easily opened seal.
- the first surface of the base strip is sealed on the inner surface
10/169 panel section suit.
- the inner surface of the panel section comprises an easily opened seal.
- a second part of the outer surface of the panel section is anchored to the inner surface of the first side panel.
- a second portion of the first surface of the base strip is anchored to the inner surface of the first side panel.
- a second portion of the first surface of the base strip is anchored to the inner surface of the first side panel, and a second part of the inner surface of the panel section is anchored to the outer surface of the first side panel.
- a second part of the inner surface of the panel section is anchored to the outer surface of the first side panel.
- a second portion of the second surface of the base strip is anchored to the external surface of the first side panel.
- the first end of the panel section, and the first end of the second side panel, are joined together with a seal.
- the first end of the first panel section, and the first end of the second panel section, are joined together with a fold.
- the second end of the first side panel, and the second end of the second side panel, are joined together with a seal.
- the second end of the first side panel, and the second end of the second side panel, are joined together with a fold.
- the second end of the base strip extends beyond the second end of the panel section.
- the second end of the panel section extends beyond the second end of the base strip.
- the second end of the panel section is coextensive with the second end of the base strip.
- die cutting is a closed loop.
- the package has no zipper.
10/179
- the package does not have a discrete release coating for a PSA coating or coating.
- the package can be opened with a prominent force of 0.98 grams / mm (25 grams / inch) to 89 grams / mm (5 pounds / inch).
- a first portion of the die cut segment is subposed by the pressure-sensitive adhesive, and a second portion of the die cut segment is subposed by a clean area of the first surface of the base strip; the die cut segment is arranged with respect to the discrete tape so that when the die cut segment is moved or removed, at least a portion of the pressure sensitive adhesive is exposed, and at least a portion of the first end of the strip base is exposed.
- the die cutting segment is completely under the base strip.
- the die cutting segment is partially subposed by the base strip.
- when the package is opened, the base strip is not torn through the entire thickness of the base strip.
- the second surface of the base strip is substantially free of PSA.
- the package does not have a discreet cord or tear strip.
the die cut segment includes a first portion in which the die cut extends partially through the panel section, and a second portion in which the die cut extends entirely through the panel section.
- an additional seal seals the panel section at the first end of the base strip.
- the first side edge of the base strip is arranged between and sealed on the first side edge of the panel section and the second side panel respectively, and the second side edge of the base strip is arranged between and sealed on the second side edge of the panel section. panel and in the second
18/109 side panel respectively.
In a fifth aspect, a method for making an easily opened and resealable package in a vertical forming / filling / sealing process comprises providing a flat laid sheet comprising a first and a second surface;
providing a discrete laminate comprising a strip comprising a base strip comprising a first and a second surface, a first and a second side edges, and a first and a second ends, at least one of the first and second surfaces of the strip base comprising a seal, and a pressure sensitive adhesive coated on at least a first portion of the first surface of the base strip, a panel section comprising an outer and inner surface, a first and a second side edge, and a first and a second end, the inner surface comprising a seal, wherein at least the first portion of the first surface of the base strip is adhered by the pressure sensitive adhesive to the inner surface of the panel section, and a die cut disposed in the section panel, die cutting defining a die cutting segment;
advancing the flat lay sheet over a forming device to convert the flat lay sheet into a folded sheet;
advance the discrete laminate so that when the packaging is made, the discrete laminate is part of the packaging;
make a longitudinal seal on the folded sheet and the discreet laminate;
transversely sealing the folded sheet and the discrete laminate to produce a first transverse seal to define a first pocket, wherein the first transverse seal is a lower transverse seal of the first pocket;
19/109 put a product in the first bag;
advance the folded sheet and the discreet laminate, with the first bag, down by a predetermined distance;
sealing the first pocket transversely to produce an upper transverse seal in the first pocket, and a lower transverse seal in the second pocket, the second pocket disposed above the first pocket; and transversely cutting the folded sheet and the discrete laminate to separate the first pouch from the second pouch to make a package, the package comprising a first and a second side panel each comprising an outer and inner surface, a first and a second side edges, and a first and second ends, the first and the second side panels joined together along their respective first and second side edges, the panel section and the second side panel joined along their respective first and second side edges, and the first end of the panel section extending beyond the first end of the base strip; the discrete laminate anchored in the first side panel;
wherein the die cut segment is arranged with respect to the pressure sensitive adhesive so that when the package is opened, the package can subsequently be resealed adhering to any of the first side panel, the second side panel, and the panel section pressure sensitive adhesive; and where, at any time before or during the step of making the longitudinal seal, the discreet laminate is anchored in the flat laid sheet or in the folded sheet.
Optionally, according to various modalities of the fifth aspect of the invention, taken alone or in any suitable combination of these modalities:
- both the first and second surfaces of the base strip comprise a seal.
- at least one of the first and second surfaces of the strip
The base 20/109 comprises an easily opened seal.
- at least one of the first and second surfaces of the base strip is sealed on the inner surface of the first or second side panel respectively with an easily opened seal.
- the first surface of the base strip is sealed on the inner surface of the panel section.
- the inner surface of the panel section comprises an easily opened seal.
- a second part of the outer surface of the panel section is anchored to the inner surface of the first side panel.
- a second portion of the first surface of the base strip is anchored to the inner surface of the first side panel.
- a second portion of the first surface of the base strip is anchored to the inner surface of the first side panel, and a second part of the inner surface of the panel section is anchored to the outer surface of the first side panel.
- a second part of the inner surface of the panel section is anchored to the outer surface of the first side panel.
- a second portion of the second surface of the base strip is anchored to the external surface of the first side panel.
- the first end of the panel section, and the first end of the second side panel, are joined together with a seal.
- the first end of the first panel section, and the first end of the second side panel, are joined together with a fold.
- the second end of the first side panel, and the second end of the second side panel, are joined together with a seal.
- the second end of the first side panel, and the second end of the second side panel, are joined together with a fold.
- the second end of the base strip extends beyond the second end of the panel section.
- the second end of the panel section extends beyond the second end of the base strip.
10/21
- the second end of the panel section is coextensive with the second end of the base strip.
- die cutting is a closed loop.
- the package has no zipper.
- the package does not have a discrete release coating for a PSA coating or coating.
- the package can be opened with a prominent force of 0.98 grams / mm (25 grams / inch) to 89 grams / mm (5 pounds / inch).
- a first portion of the die cut segment is subposed by the pressure-sensitive adhesive, and a second portion of the die cut segment is subposed by a clean area of the first surface of the base strip; the die cut segment is arranged with respect to the discrete tape so that when the die cut segment is moved or removed, at least a portion of the pressure sensitive adhesive is exposed, and at least a portion of the first end of the strip base is exposed.
- the die cutting segment is completely under the base strip.
- the die cutting segment is partially subposed by the base strip.
- when the package is opened, the base strip is not torn through the entire thickness of the base strip.
- the second surface of the base strip is substantially free of PSA.
- the package does not have a discreet cord or tear strip.
the die cut segment includes a first portion in which the die cut extends partially through the panel section, and a second portion in which the die cut extends entirely through the panel section.
- an additional seal seals the panel section at the first end of the base strip.
10/22
- the first side edge of the base strip is arranged between and sealed on the first side edge of the panel section and the second side panel respectively, and the second side edge of the base strip is arranged between and sealed on the second side edge of the panel section. panel and the second side panel respectively.
In a sixth aspect, a method for making an easily opened and resealable package in a vertical forming / filling / sealing process comprises providing a flat laid sheet comprising a first and a second surface;
providing a discrete laminate comprising a strip comprising a base strip comprising a first and a second surface, a first and a second side edges, and a first and a second ends, at least one of the first and second surfaces of the strip base comprising a seal, and a pressure sensitive adhesive coated on at least a first portion of the first surface of the base strip, a panel section comprising an outer and inner surface, a first and a second side edge, and a first and a second end, the inner surface comprising a seal, wherein at least the first portion of the first surface of the base strip is adhered by the pressure sensitive adhesive to the inner surface of the panel section, and a die cut disposed in the section panel, die cutting defining a die cutting segment;
where the discreet laminate is anchored in the flat laid sheet;
advancing the flat sheet with the discrete laminate anchored to it on a forming device to convert the flat sheet into a folded sheet;
make a longitudinal seal on the folded sheet and laminate
23/109 discreet;
transversely sealing the folded sheet and the discrete laminate to produce a first transverse seal to define a first pocket, wherein the first transverse seal is a lower transverse seal of the first pocket;
put a product in the first bag;
advance the folded sheet and the discreet laminate, with the first bag, down by a predetermined distance;
sealing the first pocket transversely to produce an upper transverse seal in the first pocket, and a lower transverse seal in the second pocket, the second pocket disposed above the first pocket; and transversely cutting the folded sheet and the discrete laminate to separate the first pouch from the second pouch to make a package, the package comprising a first and a second side panel each comprising an outer and inner surface, a first and a second side edges, and a first and second ends, the first and the second side panels joined together along their respective first and second side edges, the panel section and the second side panel joined along their respective first and second side edges, and the first end of the panel section extending beyond the first end of the base strip; the discrete laminate anchored in the first side panel;
wherein the die cut segment is arranged with respect to the pressure sensitive adhesive so that when the package is opened, the package can subsequently be resealed adhering to any of the first side panel, the second side panel, and the panel section pressure sensitive adhesive.
Optionally, according to various modalities of the sixth aspect of the invention, taken alone or in any suitable combination of these modalities:
- both the first and second surfaces of the base strip
24/109 comprise a seal.
- at least one of the first and second surfaces of the base strip comprises an easily opened seal.
- at least one of the first and second surfaces of the base strip is sealed on the inner surface of the first or second side panel respectively with an easily opened seal.
- the first surface of the base strip is sealed on the inner surface of the panel section.
- the inner surface of the panel section comprises an easily opened seal.
- a second part of the outer surface of the panel section is anchored to the inner surface of the first side panel.
- a second portion of the first surface of the base strip is anchored to the inner surface of the first side panel.
- a second portion of the first surface of the base strip is anchored to the inner surface of the first side panel, and a second part of the inner surface of the panel section is anchored to the outer surface of the first side panel.
- a second part of the inner surface of the panel section is anchored to the outer surface of the first side panel.
- a second portion of the second surface of the base strip is anchored to the external surface of the first side panel.
- the first end of the panel section, and the first end of the second side panel, are joined together with a seal.
- the first end of the first panel section, and the first end of the second side panel, are joined together with a fold.
- the second end of the first side panel, and the second end of the second side panel, are joined together with a seal.
- the second end of the first side panel, and the second end of the second side panel, are joined together with a fold.
- the second end of the base strip extends beyond the second end of the panel section.
10/25
- the second end of the panel section extends beyond the second end of the base strip.
- the second end of the panel section is coextensive with the second end of the base strip.
- die cutting is a closed loop.
- the package has no zipper.
- the package does not have a discrete release coating for a PSA coating or coating.
- the package can be opened with a prominent force of 0.98 grams / mm (25 grams / inch) to 89 grams / mm (5 pounds / inch).
- a first portion of the die cut segment is subposed by the pressure-sensitive adhesive, and a second portion of the die cut segment is subposed by a clean area of the first surface of the base strip; the die cut segment is arranged with respect to the discrete tape so that when the die cut segment is moved or removed, at least a portion of the pressure sensitive adhesive is exposed, and at least a portion of the first end of the strip base is exposed.
- the die cutting segment is completely under the base strip.
- the die cutting segment is partially subposed by the base strip.
- when the package is opened, the base strip is not torn through the entire thickness of the base strip.
- the second surface of the base strip is substantially free of PSA.
- the package does not have a discreet cord or tear strip.
the die cut segment includes a first portion in which the die cut extends partially through the panel section, and a second portion in which the die cut extends entirely through the panel section.
10/26
- an additional seal seals the panel section at the first end of the base strip.
- the first side edge of the base strip is arranged between and sealed on the first side edge of the panel section and the second side panel respectively, and the second side edge of the base strip is arranged between and sealed on the second side edge of the panel section. panel and the second side panel respectively.
In a seventh aspect, a method for making an easily opened and resealable package having a formed sheet comprises providing a formed sheet having a first and a second end, and a product cavity;
provide a product;
providing a plastic top, which has a first and a second end, which comprises a flat laid sheet which comprises an external and internal surface, and a discrete laminate which comprises a tape comprising a base strip comprising a first and a second surface , a first and a second side edges, and a first and a second ends, at least one of the first and second surfaces of the base strip comprising a seal, and a pressure sensitive adhesive coated on at least a first portion of the first surface of the base strip, a panel section comprising an outer and inner surface, a first and a second side edge, and a first and a second end, the inner surface comprising a seal, the at least the first portion of the first surface of the base strip is adhered by the pressure sensitive adhesive to the inner surface of the panel section, the first ex tremor of the panel section extending beyond the first end of the base strip; and a die cut disposed in the panel section, the die cut by ma / 109/109 defining a die cut segment per die;
placing the product inside the product cavity;
seal the inner surface of the plastic top on the sheet formed; and cut the plastic top and the sheet formed to make the packaging, where the die cut segment is arranged with respect to the pressure sensitive adhesive so that when the packaging is opened, the packaging can later be resealed by adhering the plastic top or the panel section on the pressure sensitive adhesive; and in which, at any time before or during the step of sealing the internal surface of the plastic top in the formed sheet, the discrete laminate is anchored in the flat laid sheet.
Optionally, according to various modalities of the seventh aspect of the invention, taken alone or in any suitable combination of these modalities:
- both the first and second surfaces of the base strip comprise a seal.
- at least one of the first and second surfaces of the base strip comprises an easily opened seal.
- the first surface of the base strip is sealed on the inner surface of the panel section.
- the inner surface of the panel section comprises an easily opened seal.
- a second part of the outer surface of the panel section is anchored to the inner surface of the flat sheet.
- a second portion of the first surface of the base strip is anchored to the inner surface of the flat sheet.
- a second portion of the first surface of the base strip is anchored to the inner surface of the flat sheet, and a second part of the inner surface of the panel section is anchored to the outer surface of the flat sheet.
- a second part of the internal surface of the panel section is
28/109 is anchored on the outer surface of the flat sheet.
- a second portion of the second surface of the base strip is anchored to the outer surface of the flat sheet.
the second end of the base strip extends beyond the second end of the panel section.
- the second end of the panel section extends beyond the second end of the base strip.
- the second end of the panel section is coextensive with the second end of the base strip.
- die cutting is a closed loop.
- the package has no zipper.
- the package does not have a discrete release coating for a PSA coating or coating.
* - the package can be opened with a prominent force of
0.98 grams / mm (25 grams / inch) to 89 grams / mm (5 pounds / inch).
- a first portion of the die cut segment is subposed by the pressure-sensitive adhesive, and a second portion of the die cut segment is subposed by a clean area of the first surface of the base strip; the die cut segment is arranged with respect to the discrete tape so that when the die cut segment is moved or removed, at least a portion of the pressure sensitive adhesive is exposed, and at least a portion of the first end of the strip base is exposed.
- the die cutting segment is completely subposed by the base strip.
- the die cutting segment is partially subposed by the base strip.
- when the package is opened, the base strip is not torn through the entire thickness of the base strip.
- the second surface of the base strip is substantially free of PSA.
- the package does not have a discreet cord or tear strip
10/29.
the die cut segment includes a first portion in which the die cut extends partially through the panel section, and a second portion in which the die cut extends entirely through the panel section.
- an additional seal seals the panel section at the first end of the base strip.
- the first side edge of the base strip is arranged between and sealed on the first side edge of the panel section and the sheet formed respectively, and the second side edge of the base strip is arranged between and sealed on the second side edge of the panel section and the sheet formed respectively.
In an eighth aspect, a method of making an easily opened and resealable package having a formed sheet comprises providing a formed sheet having a first and a second end, and a product cavity;
provide a product;
providing a plastic top, which has a first and a second end, which comprises a flat laid sheet which comprises an external and internal surface, and a discrete laminate which comprises a tape comprising a base strip comprising a first and a second surface , a first and a second side edges, and a first and a second ends, at least one of the first and second surfaces of the base strip comprising a seal, and a pressure sensitive adhesive coated on at least a first portion of the first surface of the base strip, a panel section comprising an outer and inner surface, a first and a second side edge, and a first and a second end, the inner surface comprising a seal, in
30/109 that at least the first portion of the first surface of the base strip is adhered, by the pressure sensitive adhesive, to the inner surface of the panel section, the first end of the panel section extending beyond the first end of the base strip ; and a die cut arranged in the panel section, the die cut defining a die cut segment;
wherein the discrete laminate is anchored in the flat laid sheet; placing the product inside the product cavity;
seal the plastic top to the inner surface of the sheet formed; and cut the plastic top and the sheet formed to make the packaging, where the die cut segment is arranged with respect to the pressure sensitive adhesive so that when the packaging is opened, the packaging can later be resealed by adhering the plastic top or the panel section on the pressure sensitive adhesive.
Optionally, according to various modalities of the eighth aspect of the invention, taken alone or in any suitable combination of these modalities:
- both the first and second surfaces of the base strip comprise a seal.
- at least one of the first and second surfaces of the base strip comprises an easily opened seal.
- the first surface of the base strip is sealed on the inner surface of the panel section.
- the inner surface of the panel section comprises an easily opened seal.
- a second part of the outer surface of the panel section is anchored to the inner surface of the flat sheet.
- a second portion of the first surface of the base strip is anchored to the inner surface of the flat sheet.
- a second portion of the first surface of the base strip is anchored to the inner surface of the flat sheet, and a second
31/109 part of the inner surface of the panel section is anchored on the outer surface of the flat laid sheet.
- a second part of the inner surface of the panel section is anchored to the outer surface of the flat sheet.
- a second portion of the second surface of the base strip is anchored to the outer surface of the flat sheet.
- the second end of the base strip extends beyond the second end of the panel section.
- the second end of the panel section extends beyond the second end of the base strip.
- the second end of the panel section is coextensive with the second end of the base strip.
- die cutting is a closed loop.
- the package has no zipper.
- the package does not have a discrete release coating for a PSA coating or coating.
- the package can be opened with a prominent force of 0.98 grams / mm (25 grams / inch) to 89 grams / mm (5 pounds / inch).
- a first portion of the die cut segment is subposed by the pressure-sensitive adhesive, and a second portion of the die cut segment is subposed by a clean area of the first surface of the base strip; the die cut segment is arranged with respect to the discrete tape so that when the die cut segment is moved or removed, at least a portion of the pressure sensitive adhesive is exposed, and at least a portion of the first end of the strip base is exposed.
- the die cutting segment is completely under the base strip.
- the die cutting segment is partially subposed by the base strip.
- when the package is opened, the base strip is not torn through the entire thickness of the base strip.
10/32
- the second surface of the base strip is substantially free of PSA.
- the package does not have a discreet cord or tear strip.
the die cut segment includes a first portion in which the die cut extends partially through the panel section, and a second portion in which the die cut extends entirely through the panel section.
- an additional seal seals the panel section at the first end of the base strip.
- the first side edge of the base strip is arranged between and sealed on the first side edge of the panel section and the sheet formed respectively, and the second side edge of the base strip is arranged between and sealed on the second side edge of the panel section and the sheet formed respectively.
In a ninth aspect, a method of making an easily opened and resealable package in a continuous horizontal packaging process comprises providing a flat laid sheet comprising a first and a second surface;
providing a discrete laminate comprising a strip comprising a base strip comprising a first and a second surface, a first and a second side edges, and a first and a second ends, at least one of the first and second surfaces of the strip base comprising a seal, and a pressure sensitive adhesive coated on at least a first portion of the first surface of the base strip, a panel section comprising an outer and inner surface, a first and a second side edge, and a first and a second end, the inner surface comprising a seal, wherein at least the first portion of the first surface of the base strip is
33/109 adhered, by the pressure sensitive adhesive, to a first part of the inner surface of the panel section, and a die cut arranged in the panel section, the die cut defining a die cut segment;
advancing the flat sheet to a forming device for converting the flat sheet to a folded sheet having an internal surface;
advance the discrete laminate so that when the packaging is made, the discrete laminate is part of the packaging;
advancing a product to the forming device so that the folded sheet and the discrete laminate envelop the product;
make a longitudinal seal on the folded sheet and the discreet laminate;
transversely seal the folded sheet and the discrete laminate, with the product in it, to produce a front transverse seal to define a first pocket;
advance the folded sheet and the discreet laminate, with the front transverse seal, forward by a predetermined distance;
transversely sealing the first pocket to produce a rear cross seal in the first pocket, and a front cross seal in a second pocket, the second pocket arranged upstream of the first pocket; and transversely cutting the folded sheet and the discrete laminate to separate the first pouch from the second pouch to make a package, the package comprising a first and a second side panel each comprising an outer and inner surface, a first and a second side edges, and a first and second ends, the first and the second side panels joined together along their respective first and second side edges, the panel section and the second side panel joined along their respective first and second side edges, and the first end of the panel section extending beyond the first end of the base strip; the discreet laminate anchored in the
34/109 first side panel;
wherein the die cut segment is arranged with respect to the pressure sensitive adhesive so that when the package is opened, the package can subsequently be resealed adhering to any of the first side panel, the second side panel, and the panel section pressure sensitive adhesive; and where, at any time before or during the step of making the longitudinal seal, the discreet laminate is anchored in the flat laid sheet or in the folded sheet.
Optionally, according to various modalities of the ninth aspect of the invention, taken alone or in any suitable combination of these modalities:
- both the first and second surfaces of the base strip comprise a seal.
- at least one of the first and second surfaces of the base strip comprises an easily opened seal.
- at least one of the first and second surfaces of the base strip is sealed on the inner surface of the first or second side panel respectively with an easily opened seal.
- the first surface of the base strip is sealed on the inner surface of the panel section.
- the inner surface of the panel section comprises an easily opened seal.
- a second part of the outer surface of the panel section is anchored to the inner surface of the first side panel.
- a second portion of the first surface of the base strip is anchored to the inner surface of the first side panel.
- a second portion of the first surface of the base strip is anchored to the inner surface of the first side panel, and a second part of the inner surface of the panel section is anchored to the outer surface of the first side panel.
- a second part of the internal surface of the panel section is
35/109 is anchored on the outer surface of the first side panel.
- a second portion of the second surface of the base strip is anchored to the external surface of the first side panel.
- the first end of the panel section, and the first end of the second side panel, are joined together with a seal.
- the first end of the first panel section, and the first end of the second side panel, are joined together with a fold.
- the second end of the first side panel, and the second end of the second side panel, are joined together with a seal.
- the second end of the first side panel, and the second end of the second side panel, are joined together with a fold.
- the second end of the base strip extends beyond the second end of the panel section.
- the second end of the panel section extends beyond the second end of the base strip.
- the second end of the panel section is coextensive with the second end of the base strip.
- die cutting is a closed loop.
- the package has no zipper.
- the package does not have a discrete release coating for a PSA coating or coating.
- the package can be opened with a prominent force of 0.98 grams / mm (25 grams / inch) to 89 grams / mm (5 pounds / inch).
- a first portion of the die cut segment is subposed by the pressure-sensitive adhesive, and a second portion of the die cut segment is subposed by a clean area of the first surface of the base strip; the die cut segment is arranged with respect to the discrete tape so that when the die cut segment is moved or removed, at least a portion of the pressure sensitive adhesive is exposed, and at least a portion of the first end of the strip base is exposed.
- the die cutting segment is completely subposed
36/109 by the base strip.
- the die cutting segment is partially subposed by the base strip.
- when the package is opened, the base strip is not torn through the entire thickness of the base strip.
- the second surface of the base strip is substantially free of PSA.
- the package does not have a discreet cord or tear strip.
the die cut segment includes a first portion in which the die cut extends partially through the panel section, and a second portion in which the die cut extends entirely through the panel section.
- an additional seal seals the panel section at the first end of the base strip.
- the first side edge of the base strip is arranged between and sealed on the first side edge of the panel section and the second side panel respectively, and the second side edge of the base strip is arranged between and sealed on the second side edge of the panel section. panel and the second side panel respectively.
In a tenth aspect, a method for making an easily opened and resealable package in a continuous horizontal packaging process comprises providing a flat laid sheet comprising a first and a second surface;
providing a discrete laminate comprising a strip comprising a base strip comprising a first and a second surface, a first and a second side edges, and a first and a second ends, at least one of the first and second surfaces of the strip base comprising a seal, and a pressure sensitive adhesive coated on at least a first portion of the first substrate
37/109 surface of the base strip, and a panel section comprising an outer and inner surface, a first and a second side edges, and a first and a second ends, the inner surface comprising a seal, wherein at least the first portion of the first surface of the base strip is adhered, by the pressure sensitive adhesive, to the internal surface of the panel section, and a die cut arranged in the panel section, the die cut defining a die cut segment;
wherein the discrete laminate is anchored in the flat laid sheet; advancing the flat sheet with the discrete laminate anchored to it for a forming device to convert the flat sheet into a folded sheet that has an internal surface;
advancing a product to the forming device so that the folded sheet and the discrete laminate envelop the product;
make a longitudinal seal on the folded sheet and the discreet laminate;
transversely seal the folded sheet and the discrete laminate, with the product in it, to produce a front transverse seal to define a first pocket;
advance the folded sheet and the discreet laminate, with the front transverse seal, forward by a predetermined distance;
transversely sealing the first pocket to produce a rear cross seal in the first pocket, and a front cross seal in a second pocket, the second pocket arranged upstream of the first pocket; and transversely cutting the folded sheet and the discrete laminate to separate the first pouch from the second pouch to make a package, the package comprising a first and a second side panel each comprising an outer and inner surface, a first and a second side edges, and a first and a second end, the first and the second side panels joined together along their res
38/109 the first and second side edges, the panel section and the second side panel joined along their respective first and second side edges, and the first end of the panel section extending beyond the first end of the base strip; the discrete laminate anchored in the first side panel;
wherein the die cut segment is arranged with respect to the pressure sensitive adhesive so that when the package is opened, the package can subsequently be resealed adhering to any of the first side panel, the second side panel, and the panel section pressure sensitive adhesive.
Optionally, according to various modalities of the tenth aspect of the invention, taken alone or in any suitable combination of these modalities:
- both the first and second surfaces of the base strip comprise a seal.
- at least one of the first and second surfaces of the base strip comprises an easily opened seal.
- at least one of the first and second surfaces of the base strip is sealed on the inner surface of the first or second side panel respectively with an easily opened seal.
- the first surface of the base strip is sealed on the inner surface of the panel section.
- the inner surface of the panel section comprises an easily opened seal.
- a second part of the outer surface of the panel section is anchored to the inner surface of the first side panel.
- a second portion of the first surface of the base strip is anchored to the inner surface of the first side panel.
- a second portion of the first surface of the base strip is anchored to the inner surface of the first side panel, and a second part of the inner surface of the panel section is anchored to the outer surface of the first side panel.
10/39
- a second part of the inner surface of the panel section is anchored to the outer surface of the first side panel.
- a second portion of the second surface of the base strip is anchored to the external surface of the first side panel.
- the first end of the panel section, and the first end of the second side panel, are joined together with a seal.
- the first end of the first panel section, and the first end of the second side panel, are joined together with a fold.
- the second end of the first side panel, and the second end of the second side panel, are joined together with a seal.
- the second end of the first side panel, and the second end of the second side panel, are joined together with a fold.
- the second end of the base strip extends beyond the second end of the panel section.
- the second end of the panel section extends beyond the second end of the base strip.
- the second end of the panel section is coextensive with the second end of the base strip.
- die cutting is a closed loop.
- the package has no zipper.
- the package does not have a discrete release coating for a PSA coating or coating.
- the package can be opened with a prominent force of 0.98 grams / mm (25 grams / inch) to 89 grams / mm (5 pounds / inch).
- a first portion of the die cut segment is subposed by the pressure-sensitive adhesive, and a second portion of the die cut segment is subposed by a clean area of the first surface of the base strip; the die cut segment is arranged with respect to the discrete tape so that when the die cut segment is moved or removed, at least a portion of the pressure sensitive adhesive is exposed, and at least a portion of the first end of the strip base is exposed.
10/40
- the die cutting segment is completely under the base strip.
- the die cutting segment is partially subposed by the base strip.
- when the package is opened, the base strip is not torn through the entire thickness of the base strip.
- the second surface of the base strip is substantially free of PSA.
- the package does not have a discreet cord or tear strip.
the die cut segment includes a first portion in which the die cut extends partially through the panel section, and a second portion in which the die cut extends entirely through the panel section.
- an additional seal seals the panel section at the first end of the base strip.
- the first side edge of the base strip is arranged between and sealed on the first side edge of the panel section and the second side panel respectively, and the second side edge of the base strip is arranged between and sealed on the second side edge of the panel section. panel and the second side panel respectively.
In an eleventh aspect, a pouch comprises a first and a second side panel each comprising an outer and inner surface, a first and a second side edge, and a first and second end, the first and second side panels joined together along their respective first and second side edges with a seal;
a first end;
a second end defined by the second ends of the first and second side panels respectively;
a discrete laminate having a first and a second end the discrete laminate comprising
41/109 a tape comprising a base strip comprising a first and a second surface, a first and a second side edges, and a first and a second end, at least one of the first and second surfaces of the base strip comprising a seal, and a pressure sensitive adhesive coated on at least a first portion of the first surface of the base strip, a panel section comprising an outer and inner surface, a first and a second side edge, and a first and a second ends, the inner surface comprising a seal, wherein at least the first portion of the first surface of the base strip is adhered by the pressure sensitive adhesive to a first part of the inner surface of the panel section;
the panel section and the second side panel are joined together along their respective first and second side edges with a seal; and the first end of the panel section extends beyond the first end of the base strip; and a die cut arranged in the panel section, the die cut defining a die cut segment, the die cut segment arranged with respect to the pressure sensitive adhesive so that when the packaging made of the bag is opened, the the packaging can then be retrofitted by adhering any one of the first side panel, the second side panel, and the panel section to the pressure sensitive adhesive; and wherein, the discrete laminate is anchored in the first side panel.
Optionally, according to various modalities of the eleventh aspect of the invention, taken alone or in any suitable combination of these modalities:
- both the first and second surfaces of the base strip comprise a seal.
42/109
- at least one of the first and second surfaces of the base strip comprises an easily opened seal.
- at least one of the first and second surfaces of the base strip is sealed on the inner surface of the first or second side panel respectively with an easily opened seal.
- the first surface of the base strip is sealed on the inner surface of the panel section.
- the inner surface of the panel section comprises an easily opened seal.
- a second part of the outer surface of the panel section is anchored to the inner surface of the first side panel.
- a second portion of the first surface of the base strip is anchored to the inner surface of the first side panel.
- a second portion of the first surface of the base strip is anchored to the inner surface of the first side panel, and a second part of the inner surface of the panel section is anchored to the outer surface of the first side panel.
- a second part of the inner surface of the panel section is anchored to the outer surface of the first side panel.
- a second portion of the second surface of the base strip is anchored to the external surface of the first side panel.
- the second end of the first side panel and the second end of the second side panel are joined together with a seal.
- the second end of the first side panel, and the second end of the second side panel, are joined together with a fold.
- the second end of the base strip extends beyond the second end of the panel section.
- the second end of the panel section extends beyond the second end of the base strip.
- the second end of the panel section is coextensive with the second end of the base strip.
- die cutting is a closed loop.
43/109
- the bag, and a packaging made from the bag, has no zipper.
- the pouch, and the packaging made from the pouch, does not have a discrete release coating for a layer or PSA coating.
- a package made from the pouch can be opened with a prominent force of 0.98 grams / mm (25 grams / inch) to 89 grams / mm (5 pounds / inch).
- a first portion of the die cut segment is subposed by the pressure-sensitive adhesive, and a second portion of the die cut segment is subposed by a clean area of the first surface of the base strip; the die cut segment is arranged with respect to the discrete tape so that when the die cut segment is moved or removed, at least a portion of the pressure sensitive adhesive is exposed, and at least a portion of the first end of the strip base is exposed.
- the die cutting segment is completely under the base strip.
- the die cutting segment is partially subposed by the base strip.
- when the package is opened, the base strip is not torn through the entire thickness of the base strip.
- the second surface of the base strip is substantially free of PSA.
- the package does not have a discreet cord or tear strip.
the die cut segment includes a first portion in which the die cut extends partially through the panel section, and a second portion in which the die cut extends entirely through the panel section.
- an additional seal seals the panel section at the first end of the base strip.
- the first side edge of the base strip is arranged between and
44/109 sealed on the first side edge of the panel section and the second side panel respectively, and the second side edge of the base strip is arranged between and sealed on the second side edge of the panel section and the second side panel respectively.
In a twelfth aspect, a method for making a pouch with a discrete laminate disposed thereon comprises extruding a thermoplastic tube to make a pouch tubing;
providing a discrete laminate having a first and a second end, the discrete laminate comprising a tape comprising a base strip comprising a first and a second surface, a first and a second side edge, and a first and a second end, at least one of the first and second surfaces of the base strip comprising a seal, and a pressure sensitive adhesive coated on at least a first portion of the first surface of the base strip, a panel section comprising an outer and inner surface, a first and a second side edge, and a first and a second end, the inner surface comprising a seal, wherein at least the first portion of the first surface of the base strip is adhered by the pressure sensitive adhesive to a first part of the inner surface of the panel section; and a die cut arranged in the panel section, the die cut defining a die cut segment;
cut the pipe at its longitudinal edge to make a cut pocket pipe;
anchor the discreet laminate in the cut bag piping; and cut transversely and seal the cut pouch tubing at predetermined intervals to make a plurality of individual pouches each with the discrete laminate disposed on it, each pouch comprising a first and a second side panel each with
45/109 comprising an outer and inner surface, a first and a second side edges, and a first and a second ends, the first and second side panels joined together along their respective first and second side edges by a seal, a first end defined by the first ends of the first and second side panels, respectively and an end fold defined by the second ends of the first and second side panels respectively, and the first end of the panel section extending beyond the first end of the base strip ;
where the die cut segment is arranged with respect to the pressure sensitive adhesive so that when the pouch is sealed to make a package, and the package is then opened, the package can subsequently be resealed by adhering the first or second panels to the pressure sensitive adhesive;
wherein, at any time before or during the step of cutting the pouch tubing, the at least first portion of the first surface of the base strip is adhered, by the pressure sensitive adhesive, to a part of the inner surface of the panel section; and where the discrete laminate is anchored in the first side panel.
Optionally, according to various modalities of the twelfth aspect of the invention, taken alone or in any suitable combination of these modalities:
- both the first and second surfaces of the base strip comprise a seal.
- at least one of the first and second surfaces of the base strip comprises an easily opened seal.
- at least one of the first and second surfaces of the base strip is sealed on the inner surface of the first or second side panel respectively with an easily opened seal.
- the first surface of the base strip is sealed on the inner surface of the panel section.
46/109
- the inner surface of the panel section comprises an easily opened seal.
- a second part of the outer surface of the panel section is anchored to the inner surface of the first side panel.
- a second portion of the first surface of the base strip is anchored to the inner surface of the first side panel.
- a second portion of the first surface of the base strip is anchored to the inner surface of the first side panel, and a second part of the inner surface of the panel section is anchored to the outer surface of the first side panel.
- a second part of the inner surface of the panel section is anchored to the outer surface of the first side panel.
- a second portion of the second surface of the base strip is anchored to the external surface of the first side panel.
- the second end of the base strip extends beyond the second end of the panel section.
- the second end of the panel section extends beyond the second end of the base strip.
- the second end of the panel section is coextensive with the second end of the base strip.
- die cutting is a closed loop.
- the bag, and a packaging made from the bag, has no zipper.
- the pouch, and the packaging made from the pouch, does not have a discrete release coating for a layer or PSA coating.
- a package made from the pouch can be opened with a prominent force of 0.98 grams / mm (25 grams / inch) to 89 grams / mm (5 pounds / inch).
- a first portion of the die cut segment is subposed by the pressure-sensitive adhesive, and a second portion of the die cut segment is subposed by a clean area of the first surface of the base strip; the die cutting segment is arranged with
47/109 with respect to the discrete tape so that when the die cutting segment is displaced or removed, at least a portion of the pressure sensitive adhesive is exposed, and at least a portion of the first end of the base strip is exposed.
- the die cutting segment is completely under the base strip.
- the die cutting segment is partially subposed by the base strip.
- when the package is opened, the base strip is not torn through the entire thickness of the base strip.
- the second surface of the base strip is substantially free of PSA.
- the package does not have a discreet cord or tear strip.
the die cut segment includes a first portion in which the die cut extends partially through the panel section, and a second portion in which the die cut extends entirely through the panel section.
- an additional seal seals the panel section at the first end of the base strip.
- the first side edge of the base strip is arranged between and sealed on the first side edge of the panel section and the second side panel respectively, and the second side edge of the base strip is arranged between and sealed on the second side edge of the panel section. panel and the second side panel respectively.
In a thirteenth aspect, an easily opened and resealable package comprises:
a pouch comprising a first and a second side panel each comprising an outer and inner surface, a first and a second side edge, and a first and second end, the first and second side panels joined together along their respective first
48/109 and second side edges with a seal;
a first end;
a second end defined by the second ends of the first and second side panels respectively; and a discrete laminate having a first and a second end, the discrete laminate comprising a tape comprising a base strip comprising a first and a second surface, a first and a second side edge, and a first and a second end, the second surface of the base strip comprising an easily opened seal, and a pressure sensitive adhesive coated on at least a first portion of the first surface of the base strip, a panel section comprising an external and internal surface, a first and a second side edge, and a first and a second end, the inner surface comprising a seal, wherein at least the first portion of the first surface of the base strip is adhered by the pressure sensitive adhesive to a first part of the inner surface of the panel section;
the second surface of the base strip is sealed to the inner surface of the second side panel with an easy-to-open seal, the first end of the panel section is joined to the second side panel, the panel section and the second side panel are joined together to the along their respective first and second side edges with a seal;
the first end of the panel section extends beyond the first end of the base strip; and a die cut is arranged in the panel section, the die cut defining a die cut segment, the die cut segment arranged with respect to the pressure sensitive adhesive so that
49/109 when the pressure sensitive adhesive is exposed by the removal or displacement of the cutting segment by matrix of the panel section, the package can later be resealed by adhering the first panel or the second side panel to the pressure sensitive adhesive;
wherein, the discrete laminate is anchored in the first side panel; and a product arranged inside the bag.
Optionally, according to various modalities of the thirteenth aspect of the invention, taken alone or in any suitable combination of these modalities:
- both the first and second surfaces of the base strip comprise a seal.
- the first surface of the base strip is sealed on the inner surface of the panel section.
- the inner surface of the panel section comprises an easily opened seal.
- a second part of the outer surface of the panel section is anchored to the inner surface of the first side panel.
- a second portion of the first surface of the base strip is anchored to the inner surface of the first side panel.
- a second portion of the first surface of the base strip is anchored to the inner surface of the first side panel, and a second part of the inner surface of the panel section is anchored to the outer surface of the first side panel.
- a second part of the inner surface of the panel section is anchored to the outer surface of the first side panel.
- a second portion of the second surface of the base strip is anchored to the external surface of the first side panel.
- the first end of the first panel section, and the first end of the second panel section, are joined together with a fold.
- the second end of the first side panel, and the second
50/109 end of the second side panel, are joined together with a seal.
- the second end of the first side panel, and the second end of the second side panel, are joined together with a fold.
- the second end of the base strip extends beyond the second end of the panel section.
- the second end of the panel section extends beyond the second end of the base strip.
- the second end of the panel section is coextensive with the second end of the base strip.
- die cutting is a closed loop.
- the package has no zipper.
- the package does not have a discrete release coating for a PSA coating or coating.
- a package can be opened with a prominent force from 0.98 grams / mm (25 grams / inch) to 89 grams / mm (5 pounds / inch).
- a first portion of the die cut segment is subposed by the pressure-sensitive adhesive, and a second portion of the die cut segment is subposed by a clean area of the first surface of the base strip; the die cut segment is arranged with respect to the discrete tape so that when the die cut segment is moved or removed, at least a portion of the pressure sensitive adhesive is exposed, and at least a portion of the first end of the strip base is exposed.
- the die cutting segment is completely under the base strip.
- the die cutting segment is partially subposed by the base strip.
- when the package is opened, the base strip is not torn through the entire thickness of the base strip.
- the second surface of the base strip is substantially free of PSA.
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- the package does not have a discreet cord or tear strip.
the die cut segment includes a first portion in which the die cut extends partially through the panel section, and a second portion in which the die cut extends entirely through the panel section.
- an additional seal seals the panel section at the first end of the base strip.
- the first side edge of the base strip is arranged between and sealed on the first side edge of the panel section and the second side panel respectively, and the second side edge of the base strip is arranged between and sealed on the second side edge of the panel section. panel and the second side panel respectively.
Packages according to the thirteenth aspect of the invention can be made by any suitable process, including the processes described herein.
BRIEF DESCRIPTION OF THE DRAWINGS
The present invention is illustrated by reference to the following drawing figures, which cover different views and various modalities of the invention, in which:
figure 1 is an elevation view of a package;
figure 2 is an enlarged view of the package of figure 1;
figure 2A is an enlarged cross-sectional view of a portion of figure 1;
figure 2B is a cross-sectional view of a portion of figure 1;
figure 2C is an enlarged cross-sectional view of another enlarged view of another embodiment of a portion of figure 1;
figure 2D is an enlarged cross-sectional view of another embodiment of a portion of figure 1;
figure 3 is a front view of the package in figure 1, seen along lines 3-3 in figure 1;
52/109 figure 4 is a rear view of the package of figure 1, seen along lines 4-4 of figure 1;
figure 5 is an enlarged view of a portion of the package of figure 1 according to another embodiment;
figure 6 is a cross-sectional view of a tape;
figure 7 is a cross-sectional view of a tape according to another embodiment;
figure 8 is a perspective view of an HFFS process and apparatus for making a package;
figure 9A is a perspective view of a HFFS process and apparatus for making a package according to another embodiment;
figure 9B is a perspective view of a folded sheet cut;
Figure 9C is a perspective view of a cut of folded sheet with gusset;
figure 10 is an elevation view of a VFFS process and apparatus for making a package;
figure 11 is an elevation view of a VFFS process and apparatus for making a package according to another embodiment;
figure 12 is a perspective view of a sheet of sheet arranged flat and a roll of a discrete laminate;
figure 13 is a perspective view of a sheet of sheet arranged flat and a roll of a discrete laminate according to another embodiment;
figure 14 is a side view of a discrete laminate;
figure 15 is a view of a discrete laminate and a portion of a flat laid sheet taken along lines 15-15 of figure 12;
figure 16 is an elevation view of two consecutive bags in a VFFS mode;
figure 17 is a perspective view of a folded sheet for use in the invention;
figure 18 is a perspective view of a folded sheet for
53/109 use in the invention;
figure 19 is a side view of a tray for use in connection with the invention;
figure 20 is a perspective view of a package;
figure 21 is a perspective view of the package of figure 23A in an open condition;
figure 22 is a plan view of a plastic top;
figure 23 is a plan view of a plastic top according to another embodiment;
figure 24 is a schematic view of an apparatus and process for making a discrete laminate;
figure 25 is an elevation view of a continuous horizontal packaging process and apparatus for making a package;
figure 26 is a front end view of the apparatus of figure 25, seen along lines 26-26 in figure 25;
figures 27A, 27B, 27C, and 27D are each a cross-sectional view of a portion of the package, showing a sequence for opening the package;
figures 28A, 28B, and 28C are each plan views of the package, showing a sequence for opening the package;
figure 28D is an enlarged view of a portion of the package of figure 28C;
Figures 29A, 29B, 29C, 29D, 29E, 29F, and 29G are each plan views of alternative modalities;
figure 30 is a cross-sectional view of an alternative embodiment;
figure 31 is an apparatus and process for making a tape;
figure 32 is a perspective view, enlarged of the discrete laminate;
figure 33 is a plan view of the discrete laminate;
figure 34 is a plan view of another embodiment of the invention;
figure 35 is a cross-sectional view of figure 34;
54/109 figure 36 is a cross-sectional view of an alternative embodiment;
Fig. 37 is a cross-sectional view of an alternative embodiment;
figure 38 is a cross-sectional view of an alternative embodiment; and Figure 39 is a cross-sectional view of an alternative embodiment.
DEFINITIONS
Anchored, anchoring and the like here refers to sealing or adhering two surfaces together, and refers to the resulting connection between the surfaces the seal is made by means of a sealant, the adhesion is made by means of PSA.
In the processes described here where a discrete laminate is anchored in a handkerchief or side panel, or during the process in which the sheet and the discrete laminate are advanced, or when a discreet laminate was pre-anchored to the sheet before the process started, the anchoring can be done by using any suitable material and method of sealing or continuous or discontinuous adhesive. Such anchoring is done to secure the discrete laminate to the sheet or panel during the relevant packaging process.
In some embodiments, where the anchor is already relatively strong or continuous, for example, a heat seal that constitutes either a relatively strong heat seal, or an easily opened seal as defined herein, the anchor works not only to secure the discrete laminate on the sheet or panel during the relevant packaging process, but also as a final seal on that surface of the discrete laminate on the sheet (flat or folded) or panel made of the sheet.
Any subsequent step described or recited in the process of sealing one of the surfaces (that is, the anchored surface) of the discrete laminate on a sheet or panel, is already completed by the anchoring step. In these modalities, then, the contact of a sealing device,
55/109 for example, a sealing bar in the anchor region, in a subsequent step, can no longer add or separate a seal to that surface of the discrete laminate.
Any subsequent step in the process of sealing the other surface of the discrete laminate on a sheet or panel, then, in some embodiments, you can no longer add or separate a sealant to the anchored surface of the discrete laminate.
In some embodiments, where the connection is relatively weak or discontinuous, for example, a discontinuous seal, points or narrow strips of adhesive, etc., in a subsequent step of sealing one of the surfaces of the discrete laminate in the sheet or panel, a bar of sealing that seals one of the discrete laminate surfaces on the sheet or panel can contact the sheet or panel in the region where the anchor is already arranged. The seal in that region can either be improved, or initially created, by the subsequent seal step.
The sealing of a discrete laminate surface to a sheet or panel, as a process step described or recited here, should be understood in this light.
Clean area here refers to a selected portion or portions of a first surface of the base strip that has substantially no PSA in them. The clean area (s) can be provided 1) by not applying PSA to the selected portion (s), or 2) applying PSA to the first entire surface from the strip, followed by removing most or all of the PSA in the selected portion (s), for example, by scraping the PSA from the strip by suitable means such as plate or scraper; removing most or all of the PSA in this way will typically be done before the PSA has been cured; or 3) apply the PSA relatively evenly over the first entire surface of the base strip, as is done in label making, followed by masking or blunting the PSA in the selected portion (s) by any suitable means. Masking or dulling agents that are used substantially will reduce or nullify the adhesive effect of PSA on the selected portion (s), with
56/109 stopped with the adhesive effect of PSA on portions of the first surface adjacent to the selected portion (s). In general, the dulling or masking of the PSA is done after the PSA has been cured; the removal of most or all of the PSA is done before the PSA has been cured.
Closed loop here refers to a die cut that defines a pattern or closed path in the panel section whereby the sheet material within the path (the die cut segment) can be removed from the panel.
Die cutting here refers to a method for cutting or marking materials, which include a rotating die, a steel rule die, a stop die cut, and a laser cut or mark, and / or the resulting cut or mark. A die cut can extend entirely or partially through the relevant layer or sheet, and can leave a certain amount of material intact. Marking and the like here refers to a partial die cut that extends partially but not entirely through the thickness of a material, layer, sheet, panel, panel section, etc. The purpose of marking in the present invention is to provide a controlled tearing or separation of material in the act of displacing or removing the die cut segment. The depth of the cut can vary from package to package, and within a single cut per die on a given package.
Die cutting segment here refers to a portion of the panel section that can be displaced or completely removed due to the presence of a closed-loop or open-loop die cut. The die cut segment is a piece of the panel section, and when moved or removed it can sometimes act as a tamper-evident device, and facilitates access to the interior of the package.
Discrete with respect to the discrete laminate is used here to mean independently made (the discrete laminate is not an integral part of the sheet when the sheet is made), or constitutes a separate entity from the sheet, and of a first or second side panel made of the sheet .
Easy opening here refers to a package that can be handled
57/109 open relatively easily. The physical way of opening can include any one or more of a) the actual stripping of the base strip / sheet interface (adhesive failure), or b) a sealant layer of the base strip breaking completely, and the stripping then occurring between the seal layer and the adjacent layer within the strip (delamination failure), or c) breakage within a seal layer by rupture of the seal material itself (cohesive failure), or d) simply detaching a PSA flap, the flap comprising a piece of the panel section, the piece being a die cut segment as described herein, formed by an open loop die cut, so that the die cut segment is displaced from its original position; or by removing a piece from the panel section, the piece being a die cut segment as described herein, formed by a closed loop die cut. The stripping force required to open the package can be measured by an evaluation of sealing resistance or stripping resistance according to the test procedure presented in ASTM F88, here incorporated by reference in its entirety, using a crosshead speed of 203.2 to 304.8 mm / min (8 to 12 in / min) and an initial jaw clearance of 25.4 mm to 50.8 mm (1.00 inches to 2.00 inches) typical stress forces to open the packaging of the invention can range from, for example, 0.98 g / mm (25 g / in) to 53.4 g / mm (3 lb / in), for example from 4.0 g / mm to 35 , 6 g / mm (100 g / in to 2 lb / in), such as 8.0 g / mm to 26.7 g / mm (200 g / in to 1.5 lb / in). In some cases, the seal may actually detach from the surface on which it is adhered (adhesive failure), or a break in the seal and delamination along an adjacent layer interface may occur (delamination failure) or a break in the seal may occur. occur (cohesive failure). Depending on the design and geometry of the seal, the striking forces may in some embodiments be higher than 53.4 g / mm (3 lb / in), for example, 62.3, 71.2, 80.1, or 89 g / mm (3.5, 4.0, 4.5, or 5 lb / in), or values in between. When a die cut segment is moved or removed from the panel section, so that the PSA is exposed, in some embodiments, some part of the sea portion
58/109 each of the die cutting segment that remains after the die cutting process, can be torn when opening the package. The outstanding strength required for this step in the opening process will be within the parameters discussed here. # 42
Easy-open seal here refers to a seal that surrounds the base strip and the sheet in which the sealing materials and conditions are chosen for the base strip and sheet so that the package is easily opened with a physical way of opening that includes one or more of adhesive failure, delamination failure, or cohesive failure as described herein.
Easy opening seal here refers to a material chosen for one or both surfaces of the base strip, so that when that surface is sealed in a sheet, it provides a package that is easy to open with a physical mode of opening that includes one or more of adhesive failure, delamination failure, or cohesive failure as described herein.
Ethylene / alpha-olefin copolymer (EAO) here refers to ethylene copolymers with one or more comonomers selected from C3 to C10 alpha-olefins such as propene, butene-1, hexene-1, octene-1, etc. EAO includes heterogeneous materials such as linear medium density polyethylene (LMDPE), linear low density polyethylene (LLDPE), and very low and ultra low density polyethylene (VLDPE and ULDPE); single site catalyzed materials such as homogeneous linear linear ethylene / alpha olefin copolymers and long chain branched ethylene / alpha olefin copolymers; and multi-component ethylene / alpha-olefin interpenetrating resin (or IPN resin).
Ethylene homopolymer or copolymer here refers to polyethylene (PE) such as ethylene homopolymer such as low density polyethylene (LDPE), medium density polyethylene (MDPE), high density polyethylene (HDPE); The ethylene / alpha olefin copolymer as defined herein; the ethylene / vinyl acetate (EVA) copolymer; the ethylene / alkyl acrylate copolymer such as the ethylene / methyl acrylate (EMA) copolymer or the ethylene / ethyl acrylate (EE copolymer)
59/109
A), or the ethylene / butyl acrylate (EBA) copolymer; the ethylene / (meta) acrylic acid copolymer; or ionomer resin (IO).
figure and the like here refers to a drawing figure; Figs. and similar here to drawing figures;
Film is used here to mean a thermoplastic film, a laminate, or a sheet, or multilayer or monolayer, which can be used in connection with the present invention. The film can be of any suitable thickness, for example, between 2.54 and 762 microns (0.1 and 30 mils).
Flap sealing is used here to mean, in the case of a single sheet, to fold one edge of the sheet in the direction of the opposite edge of the sheet, and to seal the internal facing surfaces together. In the case of two sheets, a flap seal is a seal formed by sealing the inner surface of the edge of a sheet on the inner surface of a corresponding edge of another sheet.
Covering seal used here to mean a seal made by sealing an inner surface of a sheet to an outer surface of a sheet. The inner and outer surfaces can both be on a single sheet; or the inner surface may be of a sheet, and the outer surface of a second sheet.
Plastic top here refers to a film used to cover a container or tray that carries a product, and can be sealed on the tray, typically as a perimeter heat seal. The plastic top is typically supplied to a food processor in a flat laid film wrapped over a roll.
Longitudinal seal here refers to a flap seal or cover seal.
Next here means, with respect to the position of the discrete laminate in relation to the packaging, that the first end 28 of the base strip of the discrete laminate closest to the first end of the pouch and packaging will typically be within approximately 76.2 mm (three inches) the first end of the bag. Strip 10 can be closer than this, such as within approximately 50.8 mm (two poles
60/109 g) 31.7 mm (one inch and a quarter), 25.4 mm (one inch), 19.05 mm (0.75 inches), 12.7, 6.3, 7.6, 5 , 08, or 2.54 mm (0.5, 0.4, 0.3, 0.2, or 0.1 inch) from the first end of the pouch.
Olefin and the like herein refers to a polymer or copolymer derived at least in part from an olefinic monomer.
Open loop here refers to a die cut that defines an open pattern or path in the panel section whereby the sheet material within the path or pattern (the die cut segment) can be moved from its original position on the panel section, for example, acting as a tab.
Oxygen barrier and the like here refers to materials that have an oxygen permeability of the barrier material less than 500 cm ³ O2 / m ² · day · atmosphere (tested at a thickness of 25.4 microns (1 mils) eae 25 ° C, 0% RH according to ASTM D3985), such as less than 100, less than 50, less than 25, less than 10, less than 5, and less than 1 cm ³ O2 / m ² · day · atmosphere. Examples of polymeric materials useful as oxygen barrier materials are ethylene / vinyl alcohol copolymer (EVOH), polyvinylidene dichloride (PVDC), vinylidene chloride / methyl acrylate copolymer, vinylidene chloride / vinyl chloride copolymer , polyamide (nylon), and polyester (PET).
Polymer and the like here means a homopolymer, but also a copolymer thereof, including terpolymer, tetrapolymer, block copolymer, etc.
Purse here means a purse or bag.
Pressure sensitive adhesive (PSA) here refers to a repositionable adhesive that adheres firmly with the application of light pressure. It adheres to most surfaces with very light pressure; it is available in solvent, latex or water based forms, and is often based on non-crosslinked rubber, acrylic, or polyurethane adhesives. PSA forms viscoelastic bonds that are aggressively or permanently sticky; adheres without the need for more than manual pressure; and does not require activation by water, solvent, or heat.
61/109
Some PSA materials are cured by hot air, an electron beam, UV, or chemical media (peroxide). These are available in a wide variety of chemical compositions and systems that include acrylic and methacrylate adhesives, an emulsion-based acrylic adhesive; pressure sensitive adhesive based on rubber, styrene copolymers (styrene / isoprene / styrene and styrene / butadiene / styrene block copolymers), and silicones. In some embodiments, hot melt adhesives can be useful as well, they are included here for those modalities like PSA; a hot melt adhesive is a compound of thermoplastic adhesive, usually solid at room temperature which becomes fluid upon heating for use. Suitable commercial examples of PSA include PS-2000 ™ from Dow, and acResin®, available from BASF, and comprising a UV-curable polyacrylate that can be applied by conventional hot melt coaters at temperatures of approximately 120 ° C. Suitable adhesion enhancers can be added to acResin® or similar compositions to control adhesive tackiness; examples are the FORAL® 85 synthetic resin available from Pinova. Adhesiveness enhancers can be added to the base adhesive composition in any suitable amount, for example from 15% to 25% by weight of the total PSA composition and adhesion enhancer.
Refillable here refers to a feature or function of a package according to the invention whereby a package can be retrofitted with a folded sheet, panel, or panel section, or a portion of a folded sheet, panel, or section panel in contact with the PSA of the base strip.
Registration device here refers to any brand, pattern, die cut or characteristic of a sheet or discrete laminate, which facilitates the advancement of the sheet or discrete laminate, or a component thereof, in a controlled mode, in a packaging machine, where the sheet and / or discreet laminate is used to make the individual packages. The device can, for example, be printed or placed in a uniformly spaced manner along or near the edge of the sheet or lamina
62/109 discrete swimming, that is, registration marks, or in an area close to the middle of a sheet that does not interfere with the decorative printed graphic. These marks are used in connection with appropriate sensors to control the sheet or discreet laminate. Where die cuts are used as a recording device, detected by sensors, it may not be necessary to print the registration marks on the sheet or the discrete laminate.
Sealing here means a connection between two thermoplastic surfaces, for example, as produced by heat sealing, radio frequency (RF) sealing, ultrasonic sealing, or permanent adhesive, but excluding a repositionable adhesive or PSA.
Sealant is a polymeric material or blend of materials, such as an olefinic polymer or copolymer such as an ethylene polymer or copolymer, which can form a surface of the base strip or panel section of the invention, or a sheet on which the base strip or the panel section is sealed, and form a connection between two thermoplastic surfaces. A permanent adhesive can also be a sealant. Seal here, with respect to the base strip or panel section, or a sheet on which the base strip or panel section is adhered, excludes a repositionable adhesive or PSA.
Strip and panel section here refers to an elongated piece of thermoplastic material, typically longer in a first direction than in a direction perpendicular to the first direction, for example, rectangular; but it can also be square, round, oblong, elliptical, or any suitable shape in plan view. The strip and panel section can be of any suitable thickness, for example, between 2.54 and 762 microns (0.1 and 30 mils).
Evidence of tampering, tampering, and the like here refers to visual evidence of breakage in a package; that is, that someone accidentally or intentionally April or partially opened the package, or tried to do so.
Tape here refers to a strip with PSA attached to at least one
63/109 portion of a first surface of the strip.
Thermoplastic here includes plastic materials that when heated to a softening or casting point can be reformed without significant thermal degradation (burning). The thermoplastic includes both non-crosslinked materials and those that are crosslinked by chemical or radiation means.
Tray here refers to a formed member that has a tray bottom, tray sides, and a tray flange around the upper perimeter of the tray, where the tray bottom and tray sides form an internal cavity within which a product can be placed. The cavity can be closed by a plastic top sealed on the tray flange.
Sheet is used herein to mean a thermoplastic film, a laminate, or sheet, or multilayer or monolayer, which can be used in connection with the present invention. The sheet can be of any suitable thickness, for example between 2.54 and 762 microns (0.1 and 30 mils), and the sheet can be of any suitable length and width.
Zipper and the like here refers to a plastic zipper closure; a zipper to press to close or slide; interlocking closure; resealable fastener with interlockable fastener elements; interlockable rib and groove elements that have male and female profiles; closing in the form of interlocking alternating gain, and the like.
All compositional percentages used herein are presented on a weight basis, unless otherwise designated.
The drawings here are not necessarily to scale, and certain features of the invention may be graphically exaggerated for clarity.
DETAILED DESCRIPTION OF THE INVENTION
1. Packing
Referring to the drawings, a package 5 according to the invention is shown. Package 5 includes a pouch 7 that can be made of either a single sheet, or two sheets, to form a first panel
64/109 side 12, and a second side panel 14.
A. Sheet (s)
In any embodiment, the sheet or sheets comprise a thermoplastic material of any suitable composition, including those having at least one component, the olefinic materials such as ethylene or propylene polymers or copolymers, for example, polyethylene or ethylene alpha olefin copolymers; polyethylene terephthalate (PET); and including the sheets typically used in, or useful in, HFFS, VFFS, plastic top / tray, continuous horizontal packaging, and bag making apparatus and processes. The sheet or sheets can be monolayer or multilayer under construction, can be coextruded, laminated, or made by any suitable film making process, and can be of any suitable thickness.
Examples of sheet (s) that can be used with a discrete laminate of the invention include H7225B ™, a hybrid barrier material used for products that require a high oxygen barrier, such as grated cheese; H7525B®, a hybrid barrier material used for products that require a high oxygen barrier, such as bacon and smoked and processed meat; H7530B, like H7525B but having a thickness of approximately 76.2 microns (3 mils); CP04140®, a low barrier (high OTR) material used in packaging for agricultural products, CPM4090, a packaging film usable in microwaves for fresh cut agricultural products; and T7225B®, a barrier material used as a plastic top (not sheet-forming) for products that require a high oxygen barrier, such as snack meat. These are all commercial products produced by the Cryovac business unit of Sealed Air Corporation.
Ο Η7225Β® is a laminate that has the construction of PET // adhesive // coextruded barrier film, where PET is a biaxially oriented polyester film, and the barrier film has LDPE (low density polyethylene) / bonding EVA / nylon / EVOH + nylon / nylon / EVA / EAO bond. The total thickness of the laminate of this construction can be
65/109 any one of several gauges, typically being approximately 63.5 microns (2.5 mils). LDPE is the surface of the barrier film adhered by the adhesive to the PET film. The EAO typically acts as the heat sealing layer of the film, and finished laminate, and in packaging made from the laminate, the EAO will form the inner surface or seal of the packaging, facing the contained product, and the PET will form the outer or packaging coating. 72 H7225B ™ can be used as a plastic top sheet (non-forming).
H7525B® is a laminate that has the construction of PET // adhesive // coextruded barrier film, where PET is a biaxially oriented polyester film, and the barrier film has LDPE (low density polyethylene) construction / EVA / LLDPE / EVA / EAO bond. The total thickness of the laminate of this construction can be any of several gauges, typically being approximately 63.5 microns (2.5 mils). LDPE is the surface of the barrier film adhered by the adhesive to the PET film. The EAO typically acts as the heat sealing layer of the film, and finished laminate, and in packaging made from the laminate, the EAO will form the inner surface or seal of the packaging, facing the contained product, and the PET will form the outer or packaging coating. 75 H7525B ™ can be used as a plastic top sheet (non-forming).
CP04140® is a laminate that has the construction of BOPP // adhesive / monolayer LLDPE film. A typical gauge for the laminate is approximately 45.7 microns (1.8 mils). LLDPE typically acts as the heat sealing layer of the finished laminate, and in packaging made from the laminate, LLDPE will form the inner surface or seal of the packaging, facing the product contained, and BOPP will form the outer or coating surface of the packaging.
CPM4090® is a laminate that has the construction of BOPP // adhesive // monolayer LLDPE film + LDPE. A typical gauge for the laminate is approximately 50.8 microns (2 mils). The LLDPE + LDPE layer typically acts as the heat seal layer of the laminate
66/109 finished, and in packages made of laminate, LLDPE + LDPE will form the inner surface or seal of the packaging, facing the product contained, and BOPP will form the outer or coating surface of the packaging
The T7225B® film has EAO / EAO construction / LLDPE / nylon / EVOH / nylon bond / EVA bond / EVA bond / nylon. The first layer of EAO typically acts as the heat seal layer of the film, and in packages made of laminate, the EAO will form the inner surface or seal of the package, facing the product contained, and the nylon of the last layer will form the outer surface. or coating the packaging. Ο T7225B ™ is used as a plastic top sheet (non-forming).
Referring to the drawings, the first side panel 12 has an upper portion 9, a first lateral edge 31, a second lateral edge 33, and a lower portion 17. The second side panel 14 has an upper portion 9, a first lateral edge 35, a second side edge 37, and a bottom portion 18. The first and second side panels 12 and 14 are joined together along their respective first and second side edges either by a seal or a fold. As shown, the first side edge 31 of the first side panel 12 is joined at the first side edge 35 of the second side panel 14 by a seal 30. The second side edge 33 of the first side panel 12 is joined at the second side edge 37 of the second panel side 14 by a heat seal 32. The second end 34 of the pocket 7 can be either a seal or a fold. Where a single sheet is used to make the pouch, the second end 34 will typically be a fold, although even after the sheet is folded, a seal such as a heat seal can optionally be installed in the fold area. Where two sheets of film are used to make panels 12 and 14, the second end 34 will be a seal that joins panels 12 and 14 together along their respective lower portions 17 and 18. The two sheets can be of the same material or may be different in composition, structure, etc.
B. Discrete laminate
67/109
A discrete laminate 4 includes a panel section 6 that has an outer surface 66 and an inner surface 67, and a tape 8 that includes a base strip 10 and a layer of PSA 19. The base strip 10 is anchored at the first end of the first panel 12. The laminate, the panel section, the tape, the base strip, and the PSA layer can each be of any suitable size and shape, and will typically be longer in length than in width, with the length being, for example, greater than twice the width, for example, greater than 3, 4, or 5 times the width. A typical dimension for the discrete laminate is a width of approximately 25.4 to 38.1 mm (1 to 1.5 inches) and a length of approximately 101.6 to 254 mm (4 to 10 inches). Strip 10 will be shorter in one direction than the bag and packaging. For example, the strip may extend across the transverse width of a bag made, for example, in an HFFS or VFFS process, but it will be significantly narrower than the length of the package (see, for example, figures 3 and 4). In one embodiment, the strip will occupy less than 50%, such as less than 40%, less than 30%, less than 20%, or less than 10% of the package width.
In some embodiments, an opening flap 26 (for example, figures 28A to 28D) provides a device that can be manually held and pulled back to open the package, and access the contents of the package. The size of the packaging, the type of materials used for the bag and the strip, the sealing resistance of the materials used in the strip, and the type of product being packaged can all have some effect on the choice of the optimum length and dimensions of the flap 26.
The base strip 10 comprises a first surface 23 and a second surface 25. In one embodiment, at least one of these first and second surfaces comprises a seal. In another embodiment, both of these first and second surfaces comprise a seal. The first surface 23 is sealed to the inner surface 27 of the first side panel 12, and the second surface 25 is sealed to the inner surface 29 of the second side panel 14. Either or both of the seals are in one embodiment an easily open seal. In another modality, only the
68/109 the first layer comprises a seal, or an easily open seal, or a relatively strong seal. The film strip may have a multilayer or monolayer construction.
When a product 24 is placed inside the pouch 7, by any suitable process such as the processes described herein, and the pouch 7 is closed, the packaging 5 is made.
The base strip and the PSA layer can each be of any suitable thickness. The base strip can, for example, have a thickness between 50.8 and 127 microns (2.0 and 5.0 mils), as well as between 63.5 and 114.3 microns (2.5 and 4.5 mils) ), between 76.2 and 101.6 microns (3.0 and 4.0 mils), or any thickness between them. Factors such as the composition of the base strip, the layering within the base strip, and the flexural modulus of the materials used can affect the choice of appropriate thickness of the base strip. The PSA can also be of any suitable thickness, typically 12.7 microns (0.5 mils), for example between 2.54 microns (0.1 mils) and 25.4 microns (1 mils), or 5.08 microns ( 0.2 mils) and 20.32 microns (0.8 mils), etc.
Any suitable sheet, including any of the hybrid materials of the type described herein for sheet materials, for example, H7225B or a non-barrier analog of such material, can be used to make panel section 6 the base strip 10 In embodiments where no sealing is required between surfaces 25 and 29, the sealing between surfaces 23 and 27 can be made either before or after the finished package is made.
In some embodiments, the PSA layer covers the entire first outer surface 23 of the base strip. The PSA serves to adhere the base strip to the inner surface 67 of the panel section 6. According to the invention, the PSA layer also provides, after a package has been made, a refurbishment function as further described herein.
The discrete laminate 4 is anchored to the first side panel. In one embodiment, the base strip 10 is anchored on the inner surface 27 of the first side panel 12 in the anchorage region A.
69/109 des where the PSA covers the entire first outer surface 23, there is no clean area on the outer surface of the base strip, and to facilitate the opening of the package, at least one of the die cuts in the panel section 6 must be arranged outside the portion of the first side panel subposed by the PSA layer 19.
In some embodiments, at least one die cut, or a portion of a die cut, is arranged near the first end of a pouch than the first end 28 of the base strip of the ribbon, that is, the end of the strip of ribbon. tape base closest to the first end of the pouch.
In the embodiments described in the drawings, a second portion of the first outer surface of the base strip is substantially free of pressure sensitive adhesive, and the first portion of the first outer surface of the base strip closer to the first end of the pouch than the second portion . The second portion of the first surface is anchored on the inner surface of the first side panel in the anchoring region (A).
In some embodiments, the first portion of the first outer surface of the base strip is closer to the first end of the pouch than the second portion. The portion of the first PSA-coated surface can be an end portion of the strip, or closer to the first end of the package, or further away from the first end of the package. Alternatively, the first portion may be arranged intermediate between and spaced from the two longitudinal ends (with respect to the first and second ends of the package) of the strip, so that clean areas of the base strip are present on both sides of the intermediate portion coated with PSA. Thus, the PSA layer can be coextensive with the first surface of the base strip, or it can extend over only one or more terminal or intermediate portions of the strip, and the first surface of the strip may therefore not have clean areas, an area clean, or two or more clean areas C.
Alternatively, the discrete laminate 4 is anchored to the first side panel sealing a second part of the inner surface 67 of the section
70/109 of panel 6 on the outer surface 65 of the first side panel 12.
C. Opening Mechanisms and Strip Construction
The packaging of the invention can be easily opened manually. Any mechanism or combination of mechanisms suitable for obtaining this functionality and characteristic can be used according to the invention. The following are examples of such mechanisms.
1. Adhesive failure
In this embodiment, the second surface 25 of the base strip 10 and the inner surface of the second side panel 14 each comprise a polymeric composition which, when the surface 25 is sealed to the surface 29, forms an easily opened seal. This seal provides an interface that breaks when manually opening the package. The interlaminate connections between the layers of the base strip itself (where the strip is of multilayer construction), the cohesive force of each layer within the strip or the single layer of a monolayer strip, and anchoring that holds the first surface 23 of the base strip 10 on the inner surface 27, are stronger than the seal that holds the surface 25 on the surface 29.
In some embodiments, the polymeric composition of surfaces 25 and 19 will be the same or similar. Useful in these embodiments are the prominent systems described in U.S. Patent Numbers 4,189,519 (Ticknor) (EVA or EMA or EEA blend with crystalline isotactic polybutylene, and optionally with anhydride grafted EVA); 4,252,846 (Romesberg et al.) (Blend of EVA and HDPE, optionally with IO or polybutylene (PBU)); 4,550,141 (Hoh) (IO blend and polypropylene / ethylene (EPC) copolymer); 4,666,778 (Hwo) (blend of three components of PE, which can be LLDPE, LDPE, MDPE, or HDPE, or EVA or EMA, with PBU, and PP or EPC); 4,882,229 (Hwo) (polymer or butene-1 copolymer blended with modified or unmodified LDPE); 4,916,190 (Hwo) (blend of polymer or butylene copolymer, polymer or PE copolymer (LLDPE, LDPE, MDPE, EVA, EMA, EEA, EBA, or HDPE), with polymer or propylene copolymer); 4,937,139 (Genske, et al.) (Polymer or propylene copolymer blended with HDPE); 5,547,752 (Yanidis) (blend of PBU and IO); and
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5,997,968 (Dries et al.) (Blending of Component 1 (a copolymer of ethylene and propylene or ethylene and butylene or propylene and butylene or ethylene and another olefin having 5 to 10 propylene carbon atoms and another olefin that has 5 to 10 carbon atoms or an ethylene and propylene and butylene or ethylene and propylene terpolymer and another olefin having 5 to 10 carbon atoms) and Component 2 (HDPE, MDPE, LDPE, LLDPE or VLDPE); these US patents all here incorporated by reference in its entirety.
In other embodiments the composition of surfaces 25 and 29 will differ, that is, dissimilar seals are used. Useful in these modalities are the prominent systems described in US Patent Numbers 3,655,503 (Stanley et al.) (LDPE or MDPE sealed in polypropylene (PP), EPC, saran, nylon 6, polycarbonate (PC), polyvinyl chloride (PVC ), or polyethylene oxide (PEO); PP sealed in saran, nylon 6, PC, PVC, PEO, IO, phenoxy, or EVA; or nylon sealed with IO); 4,729,476 (Lulham et al.) (A blend of EVA and IO sealed to IO); 4,784,885 (Carespodi) (PP, HDPE, or LLDPE substantially linear PE sealed (HDPE, LLDPE) blended with a polyolefinic thermoplastic elastomer such as ethylene propylene diene monomer (EPDM), EPM, butyl rubber, butyl rubber halogenated, isoprene rubber, and styrene butadiene rubber); 4,859,514 ((Friedrich et al.) (IO or IO blended with EVA, sealed in an EVA blend and ethylene butene copolymer (EBC) and PP); 5,023,121 (Pockat, et al.) (A blend of PBU and PP and a third polymeric material selected from EVA, LDPE, LLDPE, and IO, sealed in EVA, LDPE, LLDPE, or IO); these US patents are all incorporated herein by reference in their entirety.
Alternatively, the seal between surfaces 23 and 27, instead of or in addition to the seal between surfaces 25 and 29, can function as the easy-to-open seal
In some embodiments, surfaces 25 are not sealed to surfaces 29, and strip 10 thus remains not attached to the second side panel 14 in the finished package, except for any side seals on the package that secure the two ends of the base strip 10 between the first and second side panels.
72/109
2. Delamination failure
In this modality, one of the interlaminate connections between the layers of the base strip itself (where the strip is of multilayer construction) can be broken. Thus, the interlaminar connection provides the interface that will break when manually opening the package. The sealing between surfaces 25 and 29, and between surfaces 23 and 27, and the cohesive force of each layer within the strip, are stronger than the interlaminar bond. Useful in this embodiment are the prominent systems described in U.S. Patent No. 4,944,409 (Busche et al.), This patent incorporated herein by reference in its entirety.
3. Cohesive failure
In this embodiment, one of the layers of the base strip itself (where the strip is of multilayer construction) or the monolayer base strip, fractures when the package is opened. The seal between surfaces 25 and 29, and between surfaces 23 and 27, and the interlaminate connections between the layers of the strip itself (where the strip is of multilayer construction) are stronger than the fracturing layer. Useful in this embodiment is the prominent system described in US Patent No. 6,476,137 (Long) (internal rupture of a sealing layer that comprises an ionomer blend having a melt flow index less than 5, and a copolymer of ethylene / modified vinyl acetate which has a substantially higher melt flow index, where the melt flow rates of the two polymers in the seal layer differ by at least 10), this patent is incorporated by reference in its entirety.
Other prominent systems useful in connection with the present invention are those described in U.S. Patent Numbers 4,058,632 (Evans et al.), 4,615,926 (Hsu et al.); 5,128,414 (Hwo); 6,395,321 (Schaft et al.), 7,055,683 (Bourque et al.), And US Patent Publication Numbers 20030152669 (Vadhar et al.) And 2008/0260305 (Shah et al.) (Describing as an opening seal easy), DuPont APPEEL® resins, such as those based on EVA, modified EVA, EAA, or modified EAA; polyethylenes such as LDPE and / or EVA blended with PP; LDPE or EVA blen
73/109 data with polybutene-1, or random propylene / ethylene copolymer blended with polybutene-1; EVA or LDPE blended with PP; LDPE blended with EVA and PP; such blends provide an easily opened seal when adhered to polyethylene seals; these U.S. patents and publications all incorporated herein by reference in their entirety.
4. Failure Involving PSA
In some embodiments, a package can be made where no easy-to-open seal and no easy-to-open seal is present, and the easy-to-open functionality is provided in the packaging by PSA. The opening may involve, for example, the PSA preferably adhering to one of two surfaces, as the two surfaces are pulled apart; or sticking to both surfaces as the two surfaces are pulled apart. These modalities are used in combination with the displacement or removal of the die cut segment from the panel section. A first portion of the die cut segment is overlaid with a clean area of the first surface of the base strip, and a second portion of the die cut segment is overlaid by the pressure sensitive adhesive. The die cut segment is arranged with respect to the discrete tape so that when the die cut segment is moved or removed from the panel section, at least a portion of the pressure sensitive adhesive, as well as at least a portion of the first end 28 of the base screen is exposed, that is, it is visible to the observer facing the first side panel. Holding the first end 28 of the base strip after removing the die cut segment, and pulling towards the user, the contents of the package can be accessed. The package can then be resealed by adhering one of the first and second panels, or panel section, to the pressure sensitive adhesive. First end of the base strip here means the end 28 of the base strip closest to the first end of the package.
Optionally, especially for applications where the tightness of the packaging is required before the packaging is first opened, a supplementary seal, of any suitable geometry, is available.
74/109 disposed near the first end of the package, and seals the panel section at the first end of the base strip. See, for example, figure 2D, region D. This seal reduces the possibility that, if the pressure sensitive adhesive becomes partially adhered, oxygen from outside the package may enter the package. This supplementary seal is an easy-to-open seal. The supplementary seal may be located in the area of the base strip between the pressure sensitive adhesive and the first end of the base strip, or it can be located in the area of the pressure sensitive adhesive itself. Thus, the supplementary seal seals the panel section at the first end of the base strip is used here to mean the seal of the panel section on the base strip or in the pressure sensitive adhesive region (the pressure sensitive adhesive extending or not extending up to the first end of the base strip) or in an area of the base strip between the pressure sensitive adhesive and the first end of the base strip. Figure 2D shows an area close to the first end of the base strip not coated with a pressure sensitive adhesive, and within which the supplementary seal is made.
In some embodiments, the first and second portions of the die cut segment will correspond as a first portion of the die cut segment which has a mark, and a second portion of the die cut which has a hollow cut; and will also correspond to a first portion of the underlying base strip with a pressure sensitive adhesive, and a second portion of the underlying base strip with a clean area. However, those skilled in the art will appreciate, after a review of this description, that some variation is possible in this arrangement, so that, for example, a first portion of the die cut segment may comprise a hollow cut to some degree, and a second die cut portion may comprise a marking to a certain degree, specifically if both portions of the die cut segment are hidden by the base strip. If the first portion of the die cut segment is closer to the first end of the package than the first end of the base strip, that is, it is not hidden by the strip
75/109 base, such a provision may be sufficient as long as the tightness of the packaging is not required. Likewise, some clean areas may be present in the first portion of the base strip (such as an area to accommodate the supplementary seal), provided that the easy and resealable functionality of the package is substantially maintained.
The base strip 10 can have any suitable number of layers. In figures 1 and 2, a strip 10 has two layers. Layer 20 comprises a polymeric composition which in one embodiment provides an easily opened seal when sealed to surface 25 on the inner surface 29. Layer 22 comprises a polymeric composition that exhibits a relatively strong seal when sealed to surface 23 on the inner surface 27. In any strip construction, alternatively layer 22 or its equivalent can provide the easy-to-open seal, and layer 20 or its equivalent can provide the relatively strong seal when sealed on the respective inner sheet surfaces. Alternatively, both 20 and 22 or their equivalents, or neither 20 nor 22 nor their equivalents, provide an easy-to-open seal.
Alternatively, (figure 5), the base strip 10 is of monolayer construction. Layer 20 comprises a polymeric composition and includes the first outer surface 23 and the second outer surface 25 which can be like those described herein for a multilayer base strip.
In either of these alternatives, the surface of the strip facing the inner surface 29 in some embodiments is not sealed on the inner surface 29 except on any side seal of the package.
Referring to figure 2A the panel section 6 includes at least one cut per die 21. The strip 10 is adhered to a portion of the inner surface 67 of the panel section 6, with a PSA, in the region of adhesive B. During fabrication of the packaging, another portion of strip 10 is anchored to a portion of the first side panel 12. In one embodiment, strip 10 is anchored to the inner surface 27, for example, with a relatively strong heat seal, in the anchorage region A. A cutting region by matrix C of the se
76/109 panel 6 is subposed by a portion of strip 10 which, in one embodiment, is neither sealed nor bonded by PSA, to the inner surface 26. The second surface 25 of strip 10 is in a sealed-to-surface embodiment inner 29 of the second side panel 14 with an easy-to-open seal.
A representative A1 film structure for use as the base strip 10 according to the invention is shown in figure 6. In one embodiment, this film has the composition shown in Table 1.
Table 1 (Example ) Layer Composition Gauge (thickness%) Bitola (mils) Gauge (μΠΊ) 122 EZ1 25.00 0.50 12.7 118 AD1 7.50 0.15 3.8 114 80% NY1 +20% NY2 7.50 0.15 3.8 112 OB1 10.0 0.20 5.1 116 80% NY1 +20% NY2 7.50 0.15 3.8 120 AD1 7.50 0.15 3.8 124 65% AD2 +35% PE1 17.50 0.35 8.9 128 PE1 17.50 0.35 8.9
This example of a suitable material such as base strip 10 is a barrier film with an easy-to-open seal, and is currently used as a barrier / easy-to-open component of various laminated materials that also include a sold polyester film component. commercially by the Sealed Air Corporation Cryovac business unit, under the designations that include H52XXBZ, and H72XXBZ. These are sold as primary packaging materials, that is, sheets that form the main packaging body, not as discrete laminates for use with a primary sheet.
When used in accordance with the invention, the easy-opening seal layer 122 of A1 exhibits a striking strength of typically approximately 35.6 g / mm (2 lb / in) (ASTM F88). Layer 128 of A1 generates a striking force of typically 142.4 g / mm (8 lb / in).
The resins described in Table 1, and other resins referred to in
77/109 other locations in the present application are identified in Table 2.
Table 2
Material Code Brand Name or Designation Sources) AB 1 10853® Ampacet AD1 PLEXAR®PX1007® Equistar AD2 BYNEL®39E660® DuPont AD3 PLEXAR®PX3236® LyondellBasell IN 1 LOTADER®4503® Arkema EV1 ESCORENE® LD318.92® ExxonMobil EZ1 APPEEL®72D727 DuPont NY1 ULTRAMID® B33 01 BASF NY2 GRIVORY® G21 EMS OB1 SOARNOL® ET3803 Nippon Gohsei PE1 PE®1042cs15 Flint Hills PE2 AFFINITY®PL 1888G® Dow PE3 PETROTHENE®NA 345012® LyondellBasell PE4 - - PE5 EXCEED® 3512CB® ExxonMobil PE6 AFFINITY® PT1450G1® Dow PE7 MARFLEX® 1019® Chevron Phillips PE8 ——————— - PET2 MYLAR® M34® DuPont Teijin
AB1 is a masterbatch that has approximately 81% linear low density polyethylene, and approximately 21% an an5 blocking agent (diatomaceous earth)
AD1 is a modified maleic anhydride EVA that acts as a polymeric adhesive (bonding layer material).
AD2 is a modified maleic anhydride EVA that acts as
78/109 a polymeric adhesive (bonding layer material).
AD3 is a modified maleic anhydride LLDPE that acts as a polymeric adhesive (bonding layer material).
EM1 is an ethylene / methyl acrylate copolymer with a methyl acrylate content of approximately 20%.
EV1 is an ethylene / vinyl acetate copolymer with a vinyl acetate content of less than 10% by weight of the copolymer.
EZ1 is a polymer blend composed of 65% ionomer (SURLYN ™ 1650SB), 30% EVA (ELVAX ™ 3134Q), and 5% polybutylene (MONTELL ™ PB8640), each by weight of the blend.
NY1 is nylon 6 (polycaprolactane).
NY2 is an amorphous copolyamide (6I / 6T) derived from hexamethylene diamine, isophthalic acid, and terephthalic acid.
OB1 is EVOH with approximately 38 mol% ethylene.
PE1 is LDPE.
PE2 is a branched ethylene / octene copolymer, catalyzed from a single location with a density of approximately 0.9035 grams / cubic centimeter.
PE3 is LDPE.
PE4 is a dry / granulated blend of 65% AD2 and 35% PE1.
PE5 is a ethylene / hexene / linear copolymer, catalyzed from a single location with a density of approximately 0.9120 grams / cubic centimeter.
PE6 is a branched, single-site catalyzed ethylene / octene copolymer with a density of approximately 0.902 grams / cubic centimeter.
PE7 is LDPE.
PE8 is a blend between 0.01% and 100%, by weight of the total composition, PE5, and between 100% and 0.01%, by weight of the total composition, EV1.
PET2 is a biaxially oriented polyester coated with sa ran.
79/109
All percentages here are by weight unless otherwise indicated.
Example 1 as shown has a total thickness ranging from approximately 50.8 microns (2.0 mils) to 88.9 microns (3.5 mils).
The core layer 112 of the above film structure can comprise any suitable oxygen barrier material, such as EVOH, and can be blended in any suitable proportion with other polymeric materials or organic or inorganic additives as desired. In one embodiment, the intermediate layers 114 and 116 can each comprise 100% semicrystalline polyamide such as nylon 6.
In another embodiment, the intermediate layers 114 and 116 each comprise a blend of amorphous polyamide and semicrystalline polyamide.
Bonding layers 118 and 120 can comprise any suitable polymeric adhesive that works to bond two layers together, for example, EVA, EAO, LDPE, EMA, and grafted anhydride derivatives of these polymers. The connecting layers 118 and 120 may be the same, or may differ.
The dough layer 124 may comprise a suitable polyolefin, such as an EAO; and / or a polymeric adhesive such as those described herein for bonding layers 118 and 120.
In one embodiment, the first outer layer 122 functions as an easy-opening seal layer of the film, and provides a surface 25 that can be sealed to the inner surface 29. Layer 122 can comprise any material or blend of materials that provides a seal detachable easy opening when adhered to the inner surface 29. Layer 122 comprises EZ1 or any suitable resin or resin blend that provides a detachable seal for easy opening.
The second outer layer 128 can function as a sealing layer for the film, and provides a surface 23 that can be sealed to the inner surfaces 27 and 67. Layer 128 can comprise any suitable material or blend of materials that provides a relative seal80 / 109 tively strong when adhered to internal surfaces 27 and 67. Layer 128 comprises PE1 or any EAO such as EXACT ™ 3024, a linear ethylene / butene copolymer catalyzed in one place by ExxonMobil with a density of 0.905 g / cm ³ ; or AFFINITY ™ PL 1888G,, a branched ethylene / butene copolymer catalyzed in a single location by Dow with a density of 0.9035 g / cm ³ .
Additional materials that can optionally be incorporated into one or more of the film layers, as appropriate, include anti-blocking agents, glidants, anti-fog agents, fillers, pigments, dyes, antioxidants, stabilizers, processing aids, plasticizers, retardants. flame, UV absorbers, etc.
Alternatively, layer 122 can be sealed to inner surfaces 27 and 67, and layer 128 can be sealed to inner surface 29.
In any of these embodiments, the PSA layer (19, 119, 219) will occupy a portion of the strip surface that faces and contacts the inner surface 67 of the panel section 6.
The invention is characterized by the fact that:
- the packaging before the initial opening does not have a PSA on the outer surface of the packaging,
- before opening the packaging, the PSA is in contact with the inner surface of the discrete laminate panel section of the packaging, and not in direct contact with the product inside the packaging,
- after opening the package, the surface of the base strip on which the PSA is coated forms a portion of the outer surface of the package,
- before opening the packaging, the PSA is not in direct contact with the outer surface of the first side panel, the outer surface of the panel section, or the outer surface of the second side panel,
- a portion of the panel section acts functionally as a release liner for PSA (in some embodiments there is no discrete release liner separate from the functional effect of the
81/109 panel section),
- once the packaging is opened, the PSA is on the outside of the packaging on a strip that acts functionally as an extension of the first side panel,
- in some embodiments, a portion of the panel section acts functionally as a closing flap,
- in some embodiments, after opening the package, the second side panel can be folded and the inner surface of an end segment of the second side panel can be brought into contact with the exposed PSA to reseal the package,
- in some embodiments, after opening the packaging, the panel section and the second side panel can be folded and the exposed PSA can be placed in contact with the outer surface of the first PSA panel,
- as the PSA in the open packaging, although exposed to the external environment, faces away from the product, the chance of degradation of the PSA by contact with the product is reduced.
In general, strip 10 can have any desired total thickness, and each layer can have any desired thickness, as long as the strip and packaging provide the desired functionality. Typical total film thicknesses are 2.54 microns (0.1 mils) to 381 microns (15 mils), such as 5.08 to 304.8 microns (0.2 mils to 12 mils), such as 12, 7 microns (0.5 mils) to 254 microns (10 mils), 20.32 microns (0.8 mils), to 203.2 microns (8 mils), and 25.4 microns (1 mils) to 101.6 microns (4 mils). Suitable gauges include 38.1 microns (1.5 mils), 50.8 microns (2 mils) (as in Example 1); and 76.2 microns (3 mils).
Thus, as an example, figure 7 shows, in another embodiment, a two-layer film 210 that has a first outer layer 222 compositionally and functionally like layer 122 of figure 6, with a first outer surface 225; and which has a second outer layer 228 compositionally and functionally like layer 128 of Figure 6, with a second outer surface 223.
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Two, three, four, five, six, seven, and eight layer films can thus alternatively be produced, which each includes the layers described above with respect to the film strip of figure 7, with additional layers as needed, using suitable polymers such as olefin homopolymers or copolymers.
In some embodiments, such as the base strip of Figure 7, an oxygen barrier layer is not required, for example, in the packaging of agricultural products. In these modalities, the sheet or sheets that comprise the bag will typically also not have an oxygen barrier layer. In contrast, film strip modalities 10 that include an oxygen barrier layer will typically be suitable in connection with a sheet or sheets for the pouch that include an oxygen barrier layer.
Figure 2B is similar to figure 2A, but in which 1) the strip surface that provides an easy-to-open seal faces the inner surface 27 instead of the inner surface 29; 2) a portion of the strip is sealed to a portion of the inner surface 27 with an easily opened seal, in the anchoring region A, 3) another portion of the strip is sealed to a portion of the inner surface 67 of the panel section 6 with a easy-to-open seal in seal region D, and 4) the second surface 25 of strip 10 is not sealed to the inner surface 29 of the second side panel 14, except for the side seals. The embodiment of figure 2B offers the benefit of more usable space within the package, because there is no seal (except on the sides of the package) from surface 25 to surface 29, and therefore more space is available for the product.
In an alternative embodiment, figure 2C is similar to figures 2A and 2B, but in which 1) the surface 25 of the strip 10 which provides an easily opened seal faces the inner surface 29; 2) the surface 23 of the strip 10 provides a relatively strong seal and faces the inner surface 27 of the first side panel 12, and the inner surface 67 of the panel section 6; 3) strip 10 is sealed at its first end to the inner surface 29 of the first end of the second side panel, and to the inner surface 67 of the
83/109 first end of panel section 6; 4) the packaging made from the bag of this modality can be opened by holding or squeezing the panel section and the second side panel and pulling them away from each other, in a way in which, for example, a bag of chips is sometimes open, so that the easy-to-open seal on the first end of the package is broken, allowing access to the contents of the package. After the package is opened, the package can be re-closed by removing the die cut segment defined by strip 21, exposing the PSA layer 19, and then folding over the first end of the package to contact and adhere to the PSA layer. Alternatively, the entire top portion of the first side panel, including the PSA layer, and the second side panel, can be folded down over the bottom of the first side panel to reseal the package. In some embodiments, in the unopened package, the die cut is completely hidden (subposed) by strip 10. The embodiment in figure 2C offers the benefit of having the mechanism for opening the package (breaking the easy-to-open seal) different from the mechanism re-cutting (removing the cutting segment by matrix, exposing the PSA, etc.). Thus, in this package, the die cut segment does not need to be removed to open the package. This modality also allows the use of sheets that do not respond particularly well to die cutting, for example, laser die cutting. Even if a portion of the die cut is inadvertently cut all the way through the sheet, the underlying strip provides a backing material that protects the contents of the bag and the initial tightness (if necessary) of the package.
As shown in figure 2C, the strip extends to the first end of the package. An alternative to figure 2C is like the embodiment of figure 2C, but in which the first end 16 of the second side panel, and the first end 15 of the panel section, extend beyond the first end of the base strip 10, and define a first and second opening tabs. In this embodiment, the package can be opened as described above, or alternatively the first and second flaps
84/109 opening can be pulled to break the easy opening seal and access the package contents. An example of the first and second opening flaps can be seen as flaps 509 and 511 respectively in figure 17. Although these flaps are described in the context and a flap-sealed package made in a VFFS process, such flap flaps can be present in other described embodiments of the invention.
For many products, it is important to ensure the tightness of the packaging during storage and distribution. This can be more difficult where one or more die cuts are present in the panel section of the package. Hermeticity is achieved in various embodiments of the invention where a seal (or an easy or strong opening seal) adheres to the first side panel on the strip in region A, and a seal adheres to the second side panel on the strip (figure 2A); or where the seal adheres to the first side panel or the panel section on the strip in regions A and D, although no seal adheres to the second side panel of the strip (figure 2B).
In each of the packaging and process modalities described herein, a non-airtight or airtight package can be made according to the invention.
In some embodiments, a packaging can be made where no easy-to-open seal is present, and the easy-to-open functionality is provided in the packaging by the PSA.
In one embodiment, layer 20 comprises a seal which provides a relatively strong seal when layer 20 is sealed to surface 27. An example of a suitable material as a base strip for this modality is a barrier film with a seal which provides a relatively strong seal, and is used concurrently as a barrier / sealant component of various laminated materials that also include a polyester film component, sold commercially by the Cryovac business unit of Sealed Air Corporation, under the designations H52XXB, and H72XXB. These are sold as primary packaging materials, that is, the sheets that form the main body of the package, not as the base strip used in combination with a sheet.
85/109 primary icon.
At least one cut per open-loop or closed-loop die is arranged over the panel section. Two or more cuts per die are arranged on the panel section, one in a position closer to the first end of the package than the base strip, as well as a second die cut below or in the vicinity of the strip. To open a package, a cutting segment per material matrix can thus be displaced or removed entirely from the panel section, exposing the first end of the base strip and at least a portion of the PSA. This first end can then be grabbed and pulled upwards, allowing access to the contents of the package.
2. Method for Making a Package
A. Horizontal forming / filling / sealing (HFFS)
HFFS packaging systems are well known to those skilled in the packaging industry, and can be used to make the packaging of the present invention.
Referring to figures 8, and 9A through 9C, a flat lay sheet 300 is unrolled from a roll 302, then advanced to the forming baffle 304 to convert flat lay sheet 300 into folded sheet 305 (typically a central fold film). The second end of each of the bags to be made will comprise a second end fold 306. The second end fold 306 is therefore equivalent to the second end 34 of Figure 1. This second end fold can optionally be sealed, or left as a second folded end of the bag. The side seals 308 are made to define a plurality of vertically arranged pockets 309. Each pouch 309 is cut from the back edge of the sheet 300 by an appropriate cutting mechanism (not shown) such as a knife, in position 311, a product (not shown in figure 8, but see product 24 in figures 1 to 5) it is inserted or dropped into the open mouth 312 of each pocket, and the pocket mouth 312 is then closed by a suitable sealing mechanism such as a heat seal (not shown) to create a seal 314.
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Discrete laminate 310, equivalent to discrete laminate 4 of figures 1 to 5, can be introduced into the HFFS process in a number of ways. For example, the discrete laminate 310 can be unrolled from a roll 315 in the vicinity of the roll 302, and arranged on the sheet laid flat 300 before or while sheet 300 is being folded on folded sheet 305. The discrete laminate is laid out on the sheet so that the discrete laminate overlaps the sheet arranged flat enough to allow the discrete laminate to be anchored to the sheet.
The discrete laminate 310 includes a base strip, at least a first portion of the first surface of the base strip coated with a pressure sensitive adhesive, and a second portion of the first surface of the base strip optionally substantially free of PSA. The first portion is closer to a longitudinal end of the pouch, for example, the first end of the pouch, than to the second portion.
The first portion of the first surface of the strip is adhered by the pressure sensitive adhesive to a panel section (see figures 2A and 2B). The panel section includes die cuts made in a predetermined pattern (see figures 28A to 29F) to produce the packages according to the invention. The second portion of the first surface of the base strip is anchored to the inner surface of the folded sheet in a second location on the folded sheet, by a suitable sealing mechanism such as a heat seal (not shown). Optionally, the second strip surface is sealed to the inner surface of the folded sheet. The discrete laminate 310 would thus be installed on the bag in the same process of total HFFS that carries out the production of the bag, loading a product into the bag and completing the final packaging. The discrete laminate 310 is incorporated over the pouch material and after cutting and sealing as described above, it comprises an extension of the first side panel of each pouch as shown in figure 8, and figures 1 to 5.
Alternatively, and referring to figure 9A, the discrete laminate 310 is shown to be installed on the flat sheet prior to the start of the HFFS packaging process. This can be performed outside
87/109 of the processor location, for example, by the sheet roll supplier 302.
Figure 9B is a perspective view of a folded sheet section as shown in the HFFS process and apparatus of figures 8 and 9A, as the flat laid sheet is folded to create folded sheet 305. The discrete laminate 310 is shown arranged, and optionally attached, to an inner surface 27 of panel 12 of folded sheet 305, so that when sealing the sheet to create a pouch, the discrete laminate functions as an extension of the panel.
The embodiment of figure 9C is similar to figure 9B, but in addition it shows an optional gusset 400 that can be made in the second end fold 306 of the folded sheet. The gusset can optionally be subsequently heat sealed. A second gusseted end provides an upright bag feature in the final package. Slotting can be performed by any suitable means known to those skilled in the art, such as a second forming deflector (not shown) placed in line on the manufacturing line in a position downstream of the forming deflector 304. The lower area of the folded sheet takes a generally W shape, that is, a slotted shape, in cross section with the outer legs of the W extending upwards, and two parallel reverse folds to create the slotted background. A sealing opening or holes are previously punched in the W-shaped inner legs and aligned with each other so that the two pleats can be sealed together through these holes. When the seals are made the panels are sealed to each other through the holes. One or more static deflectors can be mounted above the sealing zone to form the gaps. Slotted holes can be punched by a die in a hole punching station which punctures the spacing holes in an appropriate position designed to be in general alignment with the side seal, adding rigidity to the gore portion of the final package. This additional rigidity allows the final package to stand on its own when placed on a flat surface.
B. Formation / filling / vertical sealing (VFFS)
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Figure 10 schematically illustrates a VFFS apparatus that can be used in conjunction with the apparatus and process according to some embodiments of the present invention. VFFS packaging systems are generally well known to those skilled in the art, and described, for example, in US Patent Numbers 4,589,247 (Tsuruta et al), 4,656,818 (Shimoyama et al.), 4,768,411 (Su) , and 4,808,010 (Vogan), all of which are incorporated herein by reference in their entirety.
Apparatus 40 uses a flat sheet 41 as a roll raw material. The product 42 is manually or mechanically supplied to the apparatus 40 from a source (not shown), from which a predetermined amount of product 42 reaches the upper end portion of the forming tube 44 via a funnel 43, or other conventional means. The packages are formed in a lower portion of the apparatus 40, and the sheet 41 from which the packages are formed is fed from the feed roller 51 on certain forming bars (not shown), is wrapped around the forming tube 44 (some sometimes known as a sailor collar or training collar) and is provided with a flap seal or longitudinal cover seal 47 by a longitudinal heat sealing device 46 resulting in the formation of a vertically folded sheet in the form of a tube 48. Transverse heat sealing bars 45 operate to close and seal horizontally through the lower end of the vertically sealed tube 48, to form a pouch 49 which is later packed with product 42. Film drive belts 52, driven and directed by rollers , as illustrated, or for a suitable alternative reason, advance tube 48 and pouch 49 by a predetermined distance a, after which the sealing bars 45 close and simultaneously seal horizontally through the lower end of the vertically sealed tube 48 as well as simultaneously seal horizontally through the upper end of the sealed bag 49, to form a packaged product within the sealed bag 49. A the next bag 50 above it is then filled with a metered quantity of product 42, advanced, and the packaging cycle is repeated. It is conventional to incorporate with vehicle bars
89/109 dação 45 a cutting knife (not shown) which operates to cut a sealed pouch 49 below the bottom of the downstream pouch 50.
The flat sheet 41 of figures 10 and 11 in operation will move upwards, for example, vertically upwards from roll 51 to forming tube 44, and then downwards, for example, vertically downwards for the remaining process steps . Discrete laminate 54 is unrolled from roll 51 (figure 12) to arrange discrete laminate 54 in an overlapping relationship over sheet 41 before, or while, sheet 41 is wrapped around forming tube 44. When the longitudinal seal 47 is made, the discrete laminate 54 becomes part of the folded sheet. As with the HFFS process, a PSA coating will cover a first portion of the base strip 10 of the discrete laminate 54.
Figure 12 describes the sheet roll 51 arranged flat 41 according to an embodiment of the invention. The discrete laminate 54 is fed from the roll 51 over a portion of the flat sheet 41.
Alternatively, and referring to figures 11 and 13, the discrete laminate 54 is already installed on the flat sheet prior to the start of the VFFS packaging process. This can be performed outside the processor location, for example, by the feed roller supplier 51.
The discrete laminate includes die cuts on the panel section of the discrete laminate, die cuts made in a predetermined pattern (see figures 28A to 29F) to produce the packages according to the invention.
In some embodiments, at least one of the sheets and the discreet laminate carries a recording device. Printed indexes can be in the form of registration marks, such as eye points. Those skilled in the art will be familiar with the use of eye points and registration marks in the processing of sheet material in packaging operations. Registration marks are printed in a uniformly spaced manner along or near an edge of the sheet or tape, and facilitate controlled production of packages of the invention, and can be printed in conjunction with other decorative prints.
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Figure 14 shows a discrete laminate 4 of the invention, which can be used in the various processes and packaging described here, for example, as a discrete laminate 54 of figures 12 and 13. Discrete laminate 4 includes a ribbon 8 that includes the ribbon base 10 selectively coated with a layer of PSA 19; and panel section 6 includes a die cut (s) 21.
Figure 15 shows a discrete laminate 54 of the invention (see also figure 12) that was anchored to the flat lay sheet 41. In the embodiment shown in figure 15, a PSA coating is used to anchor the discrete laminate to the flat lay sheet in a second portion of a first surface of the base strip 10. Alternatively, the discrete laminate can be sealed to a second portion of a first surface of the base strip 10 in the flat sheet 41. The joint 13 represents a space between and a juxtaposition of a second end of the panel section 6, and a first longitudinal edge 63 of the sheet arranged flat which will become a first end of the first side panel 12 in the packaging of the invention. The exact size of joint 13 can vary depending on manufacturing tolerances when combining discrete laminate with a sheet.
Figures 32 and 33 show a discrete laminate 4 according to the invention. The discrete laminate includes a panel section 6 which includes an outer surface 355, an inner surface 356, a first side edge 353, a second side edge 354, a first end 351, a second end 352, and a die cut 21; and a tape 8 that includes a base strip 10 that includes a first surface 361, a second surface 362, a first side edge 360, a second side edge 359, a first end 357, a second end 358, and a layer of PSA 19, coated over at least a first portion of the first surface 361 of the base strip 10. Each component of the discrete laminate 4 can have any suitable dimensions, and in some embodiments the base strip 10 and the panel section 6 can be congruent, provided that the first end 351 of panel section 6 extends
91/109 in addition to the first end 357 of the base strip 10. As shown in figure 33, the base strip 10 includes a junction area S that extends beyond the second end 352 of the panel section 6; and panel section 6 includes an area extending beyond the first end 357 of the base strip 10. These areas extended in some embodiments serve as areas that can be anchored to a sheet or a first side panel of a package of the invention; or, in the case of the panel section, they serve as an upper or end portion of a first side panel of a package that can function as part of a removable opening or flap. In some embodiments, both the first and second ends of the panel section may extend beyond the first and second ends of the base strip respectively.
Although for the purposes of illustration, figure 33 shows the first edge and the side edge of the base strip as extending beyond the first edge and the side edge of the panel section, typically in packages of the invention the first and second side edges of the panel section will be congruent with the first and second edges respectively of the base strip.
In figure 16, a front or downstream pouch L includes upper and lower transverse seals 78, folded side edges 81 and 82, and a longitudinal seal 47. The rear or upstream T pouch has characteristics similar to the front pouch L. The front pouch L is cut from the upstream bag T on the cut line 80, and the seals 78 are made by suitable sealing equipment commonly used in VFFS packaging processes, such as a heat sealing equipment, not shown. For the sake of clarity, the die cuts 21 and optionally 36, present in the first side panel of the package, are not shown in all drawings. The discrete laminate is not shown in figure 16.
Figure 17 shows folded sheet 500 with a discrete laminate 501 anchored to a folded sheet, a flap seal 501, formed as described above, and before a step of making trans seals
92/109 versals on the folded sheet. A finished package made according to figure 17 will thus look like the packages in figures 3 and 4, when these are seen at right angles to their position in figures 3 and 4, that is, with the discrete laminate 4 to the right side of each package, and the second end 34 representing a fold. The embodiment of figure 17 thus provides a method for producing packages in a VFFS apparatus where the longitudinal seal of the package effectively becomes the first end of the finished package (discounting any unsealed material between the longitudinal seal and the upper edge of the package) . The apparatus and methodology of US Patent No. 6,293,073 (Caudle), this patent incorporated herein by reference in its entirety, can be used in combination with the teachings here, to produce the packages according to this modality. A point of distinction is that in the present invention, the transverse seals will typically (though not necessarily) be straight, while the transverse seals described in Caudle '073 are wavy or sinusoidal.
Alternatively (figure 18), a package like the embodiment of figure 17 is shown, but where a cover seal 503 is shown. In this as well as in other processes described herein, a cover seal can be used in place of a flap seal when making a longitudinal seal according to the invention. A finished package 5 according to figure 18 has a product within it; the two longitudinal ends of the package are closed by a transverse seal; the cover seal runs below the middle or spine of the package, connected at both ends by the transverse seals; and the discrete laminate is anchored to an inner surface of the folded sheet.
C. Plastic Top / Formed Sheet
Figures 19, 20, and 21 illustrate in another embodiment the use of a formed sheet, for example, a tray, and an unformed sheet, for example, a plastic top, used in connection with the invention. Tray 602 will typically be made during the packaging process. a
93/109 thermoforming equipment available from, for example, Multivac, Tiromat, Ulma or Rapid Rak, is used to convert a flat thermoplastic sheet into formed pockets to create trays to hold a product such as food, various industrial items and consumer products and sterile medical products. The trays are formed from a bottom sheet by heat and pressure and can be loaded with the product manually or automatically into the machine. After that, the packages are evacuated or washed with a modified atmosphere (if required), hermetically sealed to a top sheet, separated, and removed for distribution or storage. Alternatively, preformed trays can be used.
Each tray 602 has a bottom of tray 604, sides of tray 606, and a flange of tray 608 along its perimeter to which plastic top 612 can be sealed by heat or other means. The bottom of tray 604 and the sides of tray 606 define the cavity of tray 610. Before any thermoforming step, tray 602 can be of any suitable thickness, for example, from 50.8 to 762 microns (2 to 30 mils) ) thick, and any suitable construction.
If a prefabricated tray is used according to the invention, it can be rigid or semi-rigid, it can be in the form of a flat or formed tray, it can be made of any suitable material, including solid or expanded modalities, such as PP, polystyrene, polyamide, 1,4-polymethylpentene (for example TPX ™ available from Mitsui), or crystallized polyethylene terephthalate (CPET). A tray liner can optionally be used that adheres to the surface of the prefabricated tray on which the product is to be placed. This coating can be of any suitable design, and it can be of a multilayer structure with at least one layer with gas barrier properties. Such coating can be adhered to the tray by heat lamination, extrusion lamination, extrusion coating, adhesives, corona treatments, etc. Tray 602 may be a sheet formed flexible or semi-rigid, or rigid. Referring to figures 20 and 21, a package includes a
94/109 deja 602 in which plastic top 612 was sealed with a perimeter seal 614. Plastic top 612 includes a flat laid sheet 611 (see figures 22 and 23) formulated to function as a cover over a formed sheet, and can be any suitable monolayer or multilayer thermoplastic film as described herein with respect to sheets useful in connection with the present invention. The plastic top 612 also includes a discrete laminate 616 that has an easy-to-open seal on one surface, and a seal on a second surface. The 616 discrete laminate has the characteristics and easy opening composition discussed here in relation to the discrete laminate of the HFFS or VFFS packaging. The panel section in die cut 621 (see also figure 29A) can be pulled back manually towards the end of the package, along the hinge line 58, and the first side panel 15 is gripped in the area below the layer of PSA 19 so that the package is easily opened and the product can be removed as desired. After removing the product, the packaging can be re-closed by bringing the flap 626 back down over the PSA layer 19.
In some embodiments where the sheet formed is rigid or semi-rigid, an open loop die cut can be configured to form a flap when opened, as shown in figure 21, with a pivot line at one end of the flap. In other embodiments where the sheet formed is flexible, the die cut can be as described above (ie an open loop die cut with a hinge line) or it can be a closed loop die cut that can be completely removed when opening the package. In the latter case, the package can be re-closed by folding the formed flexible sheet, contacting the PSA.
Referring to figure 22, the discrete laminate 616 has a first side edge 111. As shown, the discrete laminate 616 was anchored to the flat lay sheet 611 to produce the plastic top 612. The dashed lines 107 indicate the location where the plastic top 612 is sealed and cut, for example, heat sealed at the perimeter and cut, in a
95/109 registered way by another conventional way as discussed here, for example, in the thermoforming equipment, to create the individual packages. Lines 107 represent what will become the side edges and individual packaging seals when plastic top 612 is advanced into a packaging system where it is progressively fed over the full trays, sealed in the trays, and cut to create the packaging finished. Lines 111 and 140 also represent what will become the first and second ends of individual packages respectively. The flat laid sheet 611, as rolled up, and as it feeds into the thermoforming equipment, has a first side edge 140. The discrete laminate 616 can be pre-anchored on the flat laid sheet 611 by the plastic top supplier, as in the modalities of the figures 9A, 11 and 13. Alternatively, the discrete laminate 616 can be anchored to the flat sheet 611 during the packaging process, as in the modalities of figures 8A, 10, and 12.
Figure 23 shows an alternative embodiment of figure 22, in which the plastic top is produced as described above, but two crossed, so that when executed on a packaging machine, with suitable machine matrix configurations, two, four, etc. . packaging can be made simultaneously. In addition to the sealing and cutting steps at locations 107, the sheet is cut longitudinally along line 121, so that the individual packages made from longitudinal portion X of figure 23 will have a second end 121; and individual packages made from the longitudinal portion Ύ of figure 23 will have a second end 121.
D. Continuous horizontal packaging
In another embodiment, and referring to figures 25 and 26, the packaging of the invention can be carried out using a continuous HFFS process and apparatus such as those used to package bakery products and other goods, sometimes known as Flow Wrap machines or systems. , Flow-Wrap or Flow wrapping, and available from manufacturers / suppliers such as llapak, ULMA, and Bosch.
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Figure 25 shows such a process and apparatus 700, but one in which a discrete laminate 724 is installed within a package. A flat laid sheet 702 is pulled from the roll 704 and advanced to the forming device 710. As this occurs, a series of products 726 is advanced along the conveyor 708 to the forming device 710, and the discrete laminate 724 is pulled from the roll 726 and advanced to the forming device 710. The sheet 702, with the discreet laminate in some embodiments anchored to it either before or during the formation of the sheet in the forming device, is formed by the device 710 in the folded sheet 712. This sheet folded will be like the folded sheet described above with respect to the VFFS modalities, but in a substantially horizontal orientation. The folded sheet 712 coils around the 706 products. A longitudinal sealing device that can form part of the forming device 710 forms a cover or flap seal (of the type described above with respect to the VFFS modalities) on the folded sheet, typically at the bottom of the folded sheet. The cover or flap seal is typically a heat seal. An alternative is to have a separate sealing device 714 to produce the cover or flap seal. The products move downstream from the forming device 710 or the sealing device 714 to the cross sealing device 716 where the folded sheet is transversely sealed in areas of the folded sheet between adjacent products. Such seals are typically heat seals. The products are advanced from the transversal sealing device 716 to the cutting device 718a and 718b, where the folded sheet formed and longitudinally and transversely sealed is cut in areas of the folded sheet between the adjacent products, in or near the transversal seals, so that 720 individual packages are produced.
Alternatively, the sealing function of the transverse sealing device 716 and the cutting function of the cutting device 718a and 718b can be combined in a single station, instead of being carried out in separate locations on the production path.
The sheet 702 and the discreet laminate 724 can be of any
97/109 appropriate size and composition, such as those described herein. As the discrete laminate 724 is fed to the forming device 710, it can be placed in contact with, and optionally anchored to a surface of the sheet 702. This modality is shown in figures 25 and 26, where the discrete laminate 724 is shown as anchored in the sheet 702 as it progresses towards the forming device 710. The first longitudinal edge 703 of the discrete laminate 724 can be seen in figure 26. Alternatively, the discrete laminate 724 can be fed into the forming device 710, and then incorporated on the folded sheet 712 anchoring the discreet laminate on the inner or outer surface of the sheet adjacent to the area of the sheet formed in which the cover or flap seal is made, and in a manner and format analogous to the VFFS bag and packaging of figures 10 , 17 and 18, but in a horizontal rather than vertical position. In another embodiment, the discrete laminate 724 can be pre-applied to the sheet 702 by the sheet supplier, analogously to the modality of the bag and packaging of VFFS of figure 13, and to the bag and HFFS process of figures 9A and 9B.
E. Side seal bags
In one embodiment, and referring to figures 34 and 35, the packaging of the invention can be made using otherwise conventional equipment and bag-making processes. The bags are often made as side-seal bags. The side seal bag has a factory heat seal on opposite bag edges. The bag bottom is formed by one of two folds of film created during the extrusion of the bag tube during manufacture. The opposite film fold is slit to form a bag mouth. The bag is typically made of a long bag tube length. A method for making these side-seal bags is described in US 2008/0138478 A1 (Ebner et al.), This patent incorporated by reference in its entirety.
Figures 34 and 35 show a bag 180. Figure 34 shows a side sealing bag 180, in a plan view; figure 35 shows a cross-sectional view taken along section 35-35 of figure 34.
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Referring to Figures 34 and 35 together, the side seal bag 180 comprises a sheet 182, a first edge 184 that defines an open mouth, an edge fold 190, a first side seal 192, and a second side seal 194. The discrete laminate 191 is installed over the individual bag, or over a slit bag tube which is then cut and sealed at predetermined intervals to make a series of side seal bags 180, by any suitable process such as any of those described herein.
A bag can be made by extruding a thermoplastic tube to make a bag tube; slit the tube at its longitudinal edge to make a slit bag tube; anchoring the discrete laminate as described here in the cracked bag tube; and cutting and sealing the bag tube transversely at predetermined intervals to make a plurality of individual bags each with the discrete laminate disposed therein. The discrete laminate can work as described here for other modalities and processes, in the provision of an easily opened and resealable packaging. Some of the steps presented in US 2008/0138478 A1, for making a bag, are optional with respect to the present invention; such steps including irradiation and tube orientation.
The discrete laminate can be anchored to the first side panel of a sheet, bag or package in a number of different configurations. An example is that shown in figures 2A and 2B. Alternatives are shown in figures 36 to 39.
Figure 36 shows the discrete laminate anchored in the first side panel 12 anchoring a second part of the outer surface 66 of the panel section 6 to the inner surface 27 of the first side panel 12.
Fig. 37 shows the discrete laminate anchored to the first side panel 12 anchoring a second portion of the first surface of the base strip 10 to the inner surface 27 of the first side panel 12, and / or a second part of the inner surface 67 of the panel section 6 on the outer surface 59 of the first side panel 12.
Figure 38 shows the discrete laminate anchored in the first
99/109 side panel 12 anchoring a second part of the inner surface 67 of the panel section 6 of the outer surface 59 of the first side panel 12. A joint 13 defines the juxtaposition of the second end of the base strip 10 and the first end of the first side panel 12.
Fig. 39 shows the discrete laminate anchored to the first side panel 12 anchoring a second portion of the second surface of the base strip 10 to the outer surface 59 of the first side panel 12.
For each of these alternatives, in the case where the anchor is in the form of a seal, appropriate seals must be present on surfaces to be anchored by the seal.
For some of these alternatives, a joint 13 is not present in the direction of the joint in figure 38. Instead, the base strip 10 and / or panel section overlaps the first side panel as shown in figures 36, 37 and 39.
OPERATING METHOD
When opening the packages of figures 27A to 27D, the die cut segment 56 defined by a first closed loop die cut 21 (see also figures 29A to 29G) is manually grabbed and pulled from the first side panel. The flap 26 is then gripped along a second die cut 36 and pulled up and back towards the first end of the pack along the flap hinge 58. The end of the strip 10 closest to the flap 26 is then gripped and pulled away from the second side panel 14, breaking the easy-opening seal (if any) to access the product inside the package 57. During this opening sequence, the anchor in region A between surfaces 23 and 17 of the first side panel 12 will typically remain intact, so that a portion of strip 10 remains on and in contact with surface 27. Here, and in figure 29D , more than one cut per die is present. The first die cut is in some closed loop modes, that is, the die cut defines a die cut segment that can be moved or completely removed from the first side panel of the package. The second die cut can also be closed loop (see, for and
100/109 example, figure 29D), or can be open-loop and articulated (figures 28A through 28D) so that the flap formed by a second die cut and a pivot line can be opened without removing the flap from the first side panel of the packaging. Alternatively, a single die cut can be used, that is, either closed loop (figures 29B, 29E, 29F) or includes a hinge line (figure 29C). Each die cut can be of any suitable geometry and depth. In the area of the first die cut region C on the first side panel of figures 2A and 28A, there is neither a seal nor PSA securing the strip to the inner surface 67 of the panel section 6. This leaves an area of the package where a portion the first side panel can be relatively easily removed. The PSA layer 19 is exposed when the package is opened in each of these modalities. To reseal the package, a portion of the second side panel can be folded to contact the PSA; or the panel section tab can be placed down over the PSA. The package can be opened and re-closed several times. When the package is opened, the PSA is positioned facing the outside of the package. This is especially useful with food products where it is undesirable to have PSA facing the inside of the package, and thus potentially in contact with the product.
METHOD FOR APPLYING A PSA LAYER TO A BASIC STRIP
Figure 31 shows a method for applying a layer of PSA to a base strip to make a ribbon, comprising the following steps:
1) advance the base strip 10 by a suitable motive (not shown, and well known in the art, such as a motor) of the roller 90.
2) optionally corona surface 23 using a conventional corona tractor 92 in preparation for applying a PSA to the treated surface. PSA can adhere to strip 10 without corona treatment. However, in these modalities, depending on the materials chosen, the PSA may, when opening a package, exhibit a cohesive failure, or an alternating adhesive failure, that is, part of the PSA may adhere to strip 10 and
101/109 part on the surface 67.
3) applying a coating of PSA 19 substantially to the entire surface 23 of strip 10. A conventional PSA applicator 94 is shown to apply PSA to the surface 23 now treated with corona. As an alternative, a release coating such as a silicone-coated coating can be coated with PSA, and the PSA-coated coating is then laminated to the corona-treated strip 10. When the coating is removed, the PSA remains on strip 10 The PSA can be of any suitable composition and thickness. The thickness of the PSA coating can vary from one portion of the coated surface to another. This is acceptable as long as the finished package works in its intended manner with respect to its refurbability.
4) provide a clean area on a selected portion of surface 23.
5) cure the PSA coating. Curing can be carried out by any suitable process, taking into account the type of PSA being used, including drying by hot air using a conventional hot air dryer 96.
6) advance the resulting ribbon 8 to the accumulation roller 98.
METHOD FOR MAKING A MATRIX CUT IN A SHEET
A conventional die cutter can be used to create a first die cut 21, and optionally one or more additional die cut 36 on a sheet that is used to make panel section 6. Die cuts can be made by any conventional process and equipment. Any suitable die cut pattern can be used, open or closed loop, as long as it serves the function of providing an easy-to-open package in which the packaged product can be accessed through a flap created at least in part by the cut per matrix. Alternative patterns include elliptical, oval, triangular, three-sided rectangle, hourglass, dog bone, and other regular and irregular shapes.
Die cutting extends completely through the section of
102/109 panel, or can extend through most, but not entirely through, the thickness of the panel section. Die cutting can extend through, for example, at least 50% of the thickness of panel section 6, for example, at least 60%, at least 70%, at least 80%, at least 90%, at least 95 %, or 100% of the panel section thickness.
A laser system can be configured to produce a laser cut that cuts partially or completely through the panel section, or alternatively, a die cut can be made using a mechanical cutting system that uses rotary engraved dies, or ruler dies steel supported on stops as used in alternating presses. The choice of die cutting technique depends on several factors, including the thickness and physical nature of the film or sheet to be cut.
Die cutting can sometimes act as a feature of evidence of violation.
The application of PSA to the strip, the matrix cutting of a sheet used to produce a panel section, and the assembly of a package that incorporates a matrix cutting panel section and a PSA-coated strip, can be done in one single location, but more practically will be done in one or more separate locations, with the packaging assembly by packer using the discrete laminate pre-provided in another location and provided in advance for the packaging process.
METHOD FOR APPLYING A PANEL SECTION TO A RIBBON TO MAKE A DISCREET LAMINATE
Figure 24 shows a method for applying a panel section to a ribbon to make a discrete laminate, which comprises the following steps:
1) advance the strip 8 including the base strip 10 and the PSA layer 19 by a suitable motive (not shown, and well known in the art, such as a motor) of the roller 178.
2) advance panel section 6 of roll 176.
3) bring tape 8 and panel section 6 together on the star rollers
103/109 181,182 so that the PSA adheres the tape to the panel section.
4) install a series of die cuts per die on the panel section on die cutter 183.
5) advance the resulting discrete laminate 4 to the accumulation roller 185.
The panel section could be die cut prior to this process. Also, a seal could optionally be used to secure the tape to the panel section.
METHOD OF APPLICATION OF DISCREET LAMINATE IN A SHEET
The discrete laminate can be applied to a sheet such as a flat lay sheet in a number of ways.
In one embodiment, the discrete laminate can be completely assembled, either in the packaging installation where it will be used to make the packaging, or at a supplier or converter location. The discrete laminate can then be adhered to or anchored to a sheet as described herein. Anchoring in this mode is performed by sealing a second extended end of the discrete laminate panel section to a sheet surface, or by anchoring a second extended end of the discrete laminate base strip to a sheet surface.
In another embodiment, the panel section and the base strip are not put together initially, and the panel section is sealed to one surface of a sheet, and the tape is separately anchored to an opposite surface of the sheet, so that the PSA on the base strip adheres to an internal surface of the panel section. Fixing the panel section and tape to the sheet can be done simultaneously, or sequentially with fixing the panel section or before or after fixing the tape. In this way, the panel section and the tape can be congruent, although these need not be.
PACKAGING EXAMPLES
Example 1. A package is made according to the modality illustrated in figure 2D and described here in a horizontal forming / filling / sealing system. The first and second side panels
104/109 and 14 respectively each comprise T7225B, and the panel section comprises H7530B, a laminate that has the construction:
Chemically treated PET Polyurethane adhesive Coextruded barrier film
Where PET is a biaxially oriented polyester film, and the coextruded barrier film has the construction:
Layer 1 Layer 2 Layer 3 Layer 4 Layer 5 Layer 6 Layer 7 PE2 EV1 AD3 OB1 AD3 EV1 76% PE3 +20% PE4 +4% AB1 0.63 0.33 0.19 0.23 0.19 0.33 0.63
The total thickness of the coextruded barrier film is approximately 63.5 microns (2.50 mils). The layer gauges in mils for each layer are indicated below each layer. Layer 7 is the layer of the barrier film adhered by the adhesive to the PET film. Layer 1 is the heat seal layer of the film, and the EAO (PE2) of layer 1 forms the inner or sealant surface of the panel section, which faces the contained product, and PET forms the outer or coating surface. of the panel section. The thickness of the PET film is approximately 12.19 microns (0.48 mils). The total thickness of the laminate is approximately 76.2 microns (3.0 mils).
Alternatives to the composition of layer 7 include various combinations of materials, including:
-96% PE3 + 4% AB 1.
-100% PE3.
- 76% PE3 + 20% PE8 + 4% AB 1.
The base strip 10 of the tape is an extruded laminated film that has the construction:
105/109
Layer 1 Layer 2 Layer 3 Layer 4 Layer 5 85% PE6 +15% PE7 IN 1 PET2 IN 1 PE7 0.75 0.25 1.50 0.25 0.75
The total thickness of the base strip is approximately 88.9 microns (3.5 mils). The layer gauges in mils for each layer are indicated below each layer. Layer 5 is the base strip layer on which the PSA is coated by default. Layer 1 is the layer of the base strip that faces the inside of the package.
Before packaging is made, a PSA (acResin® A 204 UV) that carries 15% adhesion enhancer (FORAL® 85 synthetic resin) by weight of the PSA / total adhesion enhancer composition is standard coated on a first portion of layer 5 of the base strip, the PSA / adhesion enhancer composition is UV cured, and the resulting tape adhered by the PSA to the H7530B panel section (specifically, to layer 1 of the co-extruded barrier film of the H7530B laminate) while the latter is in a flat layout condition. A closed loop die cut is made in the panel section by a CO ₂ laser before applying the tape to the panel section; die cutting defining a die cutting segment that is positioned so as to result in the packaging as shown in figure 2D. The discrete laminate 4 composed of the base strip 10, the PSA layer 19, and the panel section 6 is then anchored in the sheet making up the first and second side panels, and specifically anchored to a portion of the sheet that will constitute the first panel side.
Example 2. A package like the one in Example 1 is made, but in which 25% adhesion enhancer is used in the PSA / adhesion enhancer composition.
Example 3. A package like the one in Example 1 is made, but in which the coextruded barrier film of the panel section, is a nine-layer film with a composition very similar to the seven-layer film construction of Example 1, but having an intermediate layer added
106/109 of EV1, and an additional intermediate layer of an LDPE or blend that includes LLDPE.
Example 4. A package like the one in Example 2 is made, but in which the coextruded barrier film of the panel section, is a nine-layer film with a composition very similar to the seven-layer film construction of Example 1, but having an additional intermediate layer of EV1, and an additional intermediate layer of an LDPE or a blend that includes LLDPE;
The above descriptions are those of embodiments of the invention. All parts and percentages are by weight, unless otherwise indicated or well understood in the art. Except in specific claims and examples, or where otherwise expressly stated, all numerical quantities in this description that indicate the amounts of material, reaction conditions, conditions of use, molecular weights, and / or number of carbon atoms, and similar, should be understood as modified by the word approximately in the description of the broader scope of the invention. Any reference to an item in the description or to an element in the claim in the singular using articles one, one, o, or said shall not be construed as limiting the item or element to the singular unless expressly so stated. All references to ASTM tests are the most recent, currently approved, and published version of the identified ASTM test, regarding the priority of filing date for this order. Each such published ASTM test method is hereby incorporated in its entirety by reference.
The terms referring to polymers, such as polyester, polyamide, and polyolefin, refer here to both their homopolymers and copolymers, unless otherwise specified.
With reference to the drawings, the material flow is in the direction of the arrows.
Those skilled in the art will recognize that the drawings here are not necessarily to scale, and certain features of the invention may be graphically exaggerated for clarity.
107/109
Both the sheet or sheets used in the manufacture of the packaging according to the invention, as well as the strip and the tape of the discrete laminate of the invention, can be made by any suitable process, including coextrusion, extrusion coating, extrusion lamination, and conventional lamination using polyurethane or other adhesives. These manufacturing processes are well known in the art. Extrusion can be done in annular or flat matrices. The extrudate can be hot blown or melted, and optionally oriented in a solid state as desired. Chemical or electronic cross-linking of one or more layers of the sheets or strip can be done. Both the sheet and the discrete laminate can be advanced by suitable means (not shown, and well known in the art, such as a motor) of their respective rollers.
A package according to the invention can optionally carry printed indexes, which can be decorative or informative in nature. Decorative printed indexes can include a logo, trademark, product information, etc. with text and / or graphics.
The printed indexes can be in the form of a message, for example, easy opening or opening here. These can be printed in a dispersed process (ie, a registration is not required) on or near the first end of the package. The message is printed on the surface or printed on the reverse.
In the embodiments described here, the first end of the package can be sealed, typically where two sheets are used to make the package. Alternatively, the first end of the package can be a fold, for example, where a single sheet of material is used to make the package.
The present invention, which includes packaging and methods as described herein, is provided in a number of ways in the absence of: plastic zipper closures; push-to-close or sliding zippers; interlocking closures; resealable fasteners with interlockable fastener elements; interlockable rib and groove elements that have male and female profiles; gan-shaped closing members
108/109 interlocking alternating cho, and the like. The packaging of the invention is provided here in various embodiments in the absence of a discrete release coating for a PSA layer or coating. None of these locks, zippers, elements, etc. mentioned above is present in the packaging of the invention.
Although the invention is described here in some embodiments as a package comprising a pouch comprising a first and a second side panel each having an upper edge, a first side edge, and a second side edge, those skilled in the art will comprise, after a review of this description, which in some embodiments, in which a single sheet is used, the terms side panel, top edge, first side edge, second side edge, and the like are used for convenience to describe the relative locations or regions on a sheet unique transformed into a pouch, so that the total geometry of the packaging, and the relative positions of the various characteristics of the invention can be described. Thus, for example, the first and second panels in a single sheet embodiment of the invention can simply be defined regions of the bag, and of the packaging made from it, and the side edges are simply the lateral end lines of these regions. In such modalities, the line of joining of the lateral edges are the two lateral folds in the sheet that define the sides of the package. In contrast, in modalities with two sheets, each sheet when produced will have a first and a second identifiable side edge, which will each be joined to a respective side edge of a second sheet.
Although the first and second side panels are shown in various embodiments to be of the same length, the second side panel may be longer than the first side panel, that is, it extends beyond the first edge of the first side panel. The extended portion can accommodate a suspension flap with a hole in it.
In some embodiments, a seal can be applied obliquely through the two corners of the panel section of a package
109/109 of the invention, closer to the first end of the package, so that it crosses over and seals two corners of the discrete tape in the panel section. These inclined seals can be useful in facilitating the re-closing of the package after opening, and / or in ensuring the integrity of the packaging before the initial opening. An example is shown in figures 29A and 29G, where seals 751 are positioned obliquely with respect to the first end and sides of the package. The seal overlaps a portion of the die cut 21 on the upper edges of the die cut. Optionally, die cutting can be discontinuous in the die cutting regions where inclined seals are present.

权利要求:
Claims (15)
[1]
1. Easy opening and resealable packaging, comprising:
a) a scholarship comprising
i) a first and a second side panels each comprising an outer and inner surface, a first and a second side edges, and a first and a second ends, the first and the second side panels joined together along their respective first and second second side edges with a seal;
ii) a first end;
iii) a second end defined by the second ends of the first and second side panels, respectively; and iv) a discrete laminate having a first and a second end, the discrete laminate comprising (a) a tape, comprising (i) a base strip comprising a first and a second surface, a first and a second side edge , and a first and a second end, at least one of the first and second surfaces of the base strip comprising a seal, and (ii) a pressure sensitive adhesive coated on at least a first portion of the first surface of the base strip, (b) a panel section comprising an outer and inner surface, a first and a second side edge, and a first and a second end, the inner surface comprising a seal, wherein
i) at least the first portion of the first surface of the base strip is adhered by the pressure sensitive adhesive to a first part of the inner surface of the panel section, ii) the first end of the panel section is joined on the second side panel, iii) the panel section and the second side panel are joined together along their respective first and second side edges with a seal,
[2]
2/7 iv) the first end of the panel section extends beyond the first end of the base strip, and
v) a die cut is arranged in the panel section, the die cut defining a die cut segment, the die cut segment arranged with respect to the pressure sensitive adhesive so that when the package is opened, the package it can later be retrofitted by adhering any one of the first side panel, the second side panel, and the panel section on the pressure sensitive adhesive;
wherein the discrete laminate is anchored in the first side panel; and
b) a product arranged inside the bag.
2. Easy-open and resealable packaging according to claim 1, wherein a first portion of the die-cut segment is under the pressure sensitive adhesive, and a second portion of the die-cut segment is under a clean area the first surface of the base strip; the die cut segment disposed with respect to the discrete tape so that when the die cut segment is moved or removed, at least a portion of the pressure sensitive adhesive is exposed, and at least a portion of the first end of the strip of base is exposed.
[3]
Easy-open and resealable packaging according to claim 1, wherein the die cut segment is partially subposed by the base strip.
[4]
4. Easy-open and resealable packaging according to claim 1, wherein the die cut segment includes a first portion where the die cut extends partially through the panel section, and a second portion in which the die cut matrix extends entirely through the panel section.
[5]
5. Easy-open and resealable packaging according to claim 1, wherein an additional seal seals the panel section at the first end of the base strip.
[6]
6. Easy opening and resealable packaging according to
3/7 of claim 1, wherein the inner surface of the panel section comprises an easily open seal.
[7]
7. Easy-open and resealable packaging according to claim 1, wherein a second part of the inner surface of the panel section is anchored to the inner surface of the first side panel.
[8]
8. Method for making an easily opened and resealable packaging in a horizontal forming / filling / sealing process comprising:
a) to provide a flat laid sheet comprising a first and a second surface;
b) providing a discrete laminate having a first and a second end, the discrete laminate comprising
i) a tape comprising (a) a base strip comprising a first and a second surface, a first and a second side edge, and a first and a second end, at least one of the first and second surfaces of the strip base comprising a seal, and (b) a pressure sensitive adhesive coated on at least a first portion of the first surface of the base strip;
ii) a panel section comprising an outer and inner surface, a first and a second side edge, and a first and a second end, the inner surface comprising a seal, wherein at least the first portion of the first surface of the strip base is adhered by the pressure sensitive adhesive to a first part of the inner surface of the panel section, and iii) a die cut arranged in the panel section, the die cut defining a die cut segment;
c) advancing the flat sheet to a forming device to convert the flat sheet to a folded sheet;
d) advance the discrete laminate so that when the packaging is made, the discrete laminate is part of the packaging;
e) make side seals on the folded sheet and laminate dis
4/7 upright;
f) cut the folded sheet and the discrete laminate to produce an open pouch comprising
i) a first and a second side panels each comprising an outer and inner surface, a first and a second side edges, and a first and a second ends, the first and the second side panels joined together along their respective first and second second side edges by a seal, ii) the panel section and the second panel section joined along their respective first and second side edges by a seal, iii) the first end of the panel section joined on the second side panel, and iv) the first end of the panel section extending beyond the first end of the base strip;
g) placing a product inside the open bag; and
h) seal the first end of the bag to close the bag;
wherein the die cut segment is arranged with respect to the pressure sensitive adhesive so that when the package is opened, the package can subsequently be resealed adhering to any of the first side panel, the second side panel, and the panel section pressure sensitive adhesive; and where, at any time during or before placing the product in the open pouch, the discrete laminate is anchored to the flat laid sheet, the folded sheet, or the first side panel.
[9]
9. Method for making an easily opened and resealable packaging in a continuous horizontal packaging process comprising
a) to provide a flat laid sheet comprising a first and a second surface;
b) provide a discrete laminate comprising
i) a tape comprising (a) a base strip comprising a first and a second surface, a first and a second side edge, and a first
5/7 a first and a second end, at least one of the first and second surfaces of the base strip comprising a seal, and (b) a pressure sensitive adhesive coated on at least a first portion of the first surface of the base strip;
ii) a panel section comprising an outer and inner surface, a first and a second side edge, and a first and a second end, the inner surface comprising a seal, wherein at least the first portion of the first surface of the strip base is adhered, by the pressure sensitive adhesive, to a first part of the inner surface of the panel section, and iii) a die cut arranged in the panel section, the die cut defining a die cut segment;
c) advancing the flat sheet to a forming device for converting the flat sheet to a folded sheet having an internal surface;
d) advance the discrete laminate so that when the packaging is made, the discrete laminate is part of the packaging;
e) advancing a product to the forming device so that the folded sheet and the discrete laminate envelop the product;
f) make a longitudinal seal on the folded sheet and the discreet laminate;
g) transversely seal the folded sheet and the discrete laminate, with the product in it, to produce a front transverse seal to define a first pocket;
h) advance the folded sheet and the discreet laminate, with the front transverse seal, forward for a predetermined distance;
i) transversely sealing the folded sheet to produce a rear transverse seal in the first bag, and a front transverse seal in a second bag, the second bag arranged upstream of the first bag; and
j) crosswise cut the folded sheet and the discrete laminate to separate the first bag from the second bag to make a package,
6/7 packing including
i) a first and a second side panels each comprising an outer and inner surface, a first and a second side edges, and a first and a second ends, the first and the second side panels joined together along their respective first and second second side edges, ii) the panel section and the second side panel joined along their respective first and second side edges, and iii) the first end of the panel section extending beyond the first end of the base strip;
the discrete laminate anchored in the first side panel;
wherein the die cut segment is arranged with respect to the pressure sensitive adhesive so that when the package is opened, the package can subsequently be resealed adhering to any of the first side panel, the second side panel, and the panel section pressure sensitive adhesive; and where, at any time before or during the step of making the longitudinal seal, the discreet laminate is anchored in the flat laid sheet or in the folded sheet.
[10]
10. Method according to any one of claims 8 and
9, in which a first portion of the die cut segment is subposed by the pressure sensitive adhesive, and a second portion of the die cut segment is subposed by a clean area of the first surface of the base strip; the die cut segment is arranged with respect to the discrete tape so that when the die cut segment is moved or removed, at least a portion of the pressure sensitive adhesive is exposed, and at least a portion of the first end of the strip base is exposed.
[11]
A method according to any one of claims 8 and 9, wherein the die cutting segment is partially subposed by the base strip.
[12]
12. Method according to any one of claims 8 and
7/7
9, wherein the die cut segment includes a first portion in which the die cut extends partially through the panel section, and a second portion in which the die cut extends entirely through the panel section.
5
[13]
13. Method according to any one of claims 8 and
9, wherein an additional seal seals the panel section at the first end of the base strip.
[14]
A method according to any of claims 8 and 9, wherein the inner surface of the panel section comprises a seal
10 easy opening.
[15]
A method according to any of claims 8 and 9, wherein a second part of the outer surface of the panel section is anchored to the inner surface of the first side panel.

类似技术:

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公开号 | 公开日 | 专利标题

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BR112012003256A2|2020-03-31|easy opening and resealable packaging with die cut discrete laminate

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US8646975B2|2014-02-11|Easy open and reclosable package with discrete tape and die-cut web

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US8622618B2|2014-01-07|Easy open and reclosable package with discrete laminate having panel section with easy-open sealant

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US9656784B2|2017-05-23|Easy open and reclosable package with discrete laminate, with die-cut, anchored to second side panel

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US20150336693A1|2015-11-26|Easy Open And Reclosable Package With Discrete Strip And Die-Cut Web

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US8893457B2|2014-11-25|Easy open and reclosable package with die-cut web and discrete tape anchored to second side panel

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US8979370B2|2015-03-17|Easy open and reclosable package with discrete laminate with die-cut

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US8905638B2|2014-12-09|Easy open and reclosable package with die-cut web, and discrete strip anchored to second side panel

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US20120195527A1|2012-08-02|Easy Open and Reclosable Package with Discrete Laminate Having a Panel Section with a Sealant

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US9211976B2|2015-12-15|Easy open and reclosable package with discrete laminate, with die-cut, anchored to second side panel

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US20110097023A1|2011-04-28|Easy Open Package with Discrete Laminate with Die-Cut

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US20110097022A1|2011-04-28|Easy Open Package with Discrete Laminate Having Panel Section with Easy-Open Sealant

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NZ612834B2|2015-06-30|Easy open and reclosable package with discrete strip and die-cut web

同族专利:

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公开号 | 公开日

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AU2010282811A1|2012-03-01|

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MX2012001883A|2012-04-11|

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WO2011019511A3|2011-05-19|

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KR20120090970A|2012-08-17|

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WO2011019511A2|2011-02-17|

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JP5466761B2|2014-04-09|

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CN102548860A|2012-07-04|

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AU2010282811B2|2015-03-12|

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EP2464575B1|2013-04-17|

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NZ597936A|2014-03-28|

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CN102548860B|2014-04-16|

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EP2464575A2|2012-06-20|

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KR101712998B1|2017-03-07|

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RU2517808C2|2014-05-27|

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US20110038571A1|2011-02-17|

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RU2012108934A|2013-09-20|

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US9221591B2|2015-12-29|

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JP2013501688A|2013-01-17|

引用文献:

---

公开号 | 申请日 | 公开日 | 申请人 | 专利标题

---

---

US2719663A|1949-08-03|1955-10-04|Jagenberg Werke Ag|Container with rip-open flap|

---

US3349993A|1963-06-12|1967-10-31|Package Products Company Inc|Package|

---

US3259303A|1964-10-02|1966-07-05|Dow Chemical Co|Resealable flexible container|

---

US3655503A|1969-01-13|1972-04-11|Crown Zellerbach Corp|Package of composite film with peelable, heatsealable surfaces|

---

US3595468A|1969-06-06|1971-07-27|Dow Chemical Co|Opening device|

---

US3613874A|1969-08-21|1971-10-19|Reclosable Package Corp|Reclosable package|

---

US3942713A|1974-02-25|1976-03-09|Mobil Oil Corporation|Pressure sensitive adhesive closure for bags incorporating an adhesive cuff-lock design|

---

US4058632A|1974-12-16|1977-11-15|Koninklijke Emballage Industrie Van Leer B.V.|Light-weight, flexible, easy-open, impermeable package system|

---

US4252846A|1975-09-22|1981-02-24|The Dow Chemical Company|Packages embodying a controlled peel seal and method of preparing same|

---

US4156493A|1976-03-19|1979-05-29|Nice-Pak Products, Inc.|Recloseable dispenser packet|

---

US4189519A|1978-08-30|1980-02-19|American Can Company|Heat sealable resin blends|

---

US4318506A|1980-05-27|1982-03-09|Arvey Corporation|Three-fold closable pouch|

---

US4656818A|1983-04-18|1987-04-14|Orihiro Kabushiki Kaisha|Packaging machine|

---

US4550141A|1983-08-22|1985-10-29|E. I. Du Pont De Nemours And Company|Blends of ionomer with propylene copolymer|

---

GB8322885D0|1983-08-25|1983-09-28|Sanders B|Containers|

---

JPH0356495Y2|1984-03-27|1991-12-19|

---

US4615926A|1984-07-20|1986-10-07|American Can Company|Film and package having strong seals and a modified ply-separation opening|

---

US4666778A|1984-08-31|1987-05-19|Shell Oil Company|Packaging film and sheet capable of forming peelable seals with good optics|

---

EP0179624A3|1984-10-26|1987-10-28|Bernard Sanders|A container of flexible material|

---

US4729476A|1985-02-21|1988-03-08|W.R. Grace & Co., Cryovac Div.|Easy open shrinkable laminate|

---

US5128414A|1985-06-28|1992-07-07|Shell Oil Company|Polymer packaging film and sheet capable of forming peelable seals made from ethylenic and butene-1 polymers|

---

JPS6213837U|1985-07-11|1987-01-27|

---

US4786190A|1986-08-11|1988-11-22|Minigrip, Inc.|Reclosable package having outer reclosable closure and inner non-reclosable closure|

---

US4784885A|1986-08-29|1988-11-15|R. J. Reynolds Tobacco Company|Peelable film laminate|

---

US4768411A|1986-11-07|1988-09-06|W. R. Grace & Co., Cryovac Div.|Easy-open bag and apparatus and method for making same|

---

US5044772A|1987-04-28|1991-09-03|Minnesota Mining And Manufacturing Company|Flexible bag with supporting and sealing tape|

---

US4937139A|1987-04-30|1990-06-26|American National Can Company|Peelable packaging and sheet materials and compositions for use therein|

---

DE3714843A1|1987-05-05|1988-11-17|Beiersdorf Ag|ADHESIVE TAPE AS A RE-CLOSABLE CLOSURE|

---

US4916190A|1987-05-15|1990-04-10|Shell Oil Company|Film and sheet capable of forming retortable and easy-open packagings|

---

US4859514A|1987-06-12|1989-08-22|W. R. Grace & Co.|Laminate for an easily opened package|

---

US4785940A|1987-07-02|1988-11-22|Minnesota Mining And Manufacturing Company|Flexible bag with a pressure sensitive adhesive closure strip|

---

US4808010A|1987-10-16|1989-02-28|W. R. Grace & Co.|Easy-open flexible pouch and apparatus and method for making same|

---

GB8727196D0|1987-11-20|1987-12-23|Sanders B|Container of flexible material|

---

US4944409A|1988-02-10|1990-07-31|Curwood, Inc.|Easy open package|

---

US4882229A|1988-04-29|1989-11-21|Shell Oil Company|Blends of high molecular weight polybutylene with low density polyethylene|

---

US5547752A|1988-06-20|1996-08-20|James River Paper Company, Inc.|Blend of polybutylene and ionomer forming easy-open heatseal|

---

US4934535A|1989-04-04|1990-06-19|The Procter & Gamble Company|Easy open flexible bag filled with compressed flexible articles and method and apparatus for making same|

---

GB8919666D0|1989-08-31|1989-10-11|Forman Harold|Container|

---

US4946038A|1989-12-20|1990-08-07|Rolland Eaton|Medicine container and cover therefor|

---

US5023121A|1990-04-12|1991-06-11|W. R. Grace & Co.-Conn.|Coextruded film with peelable sealant|

---

US5044776A|1990-04-27|1991-09-03|Morgan Adhesives Company|Resealable closure system|

---

US5346301A|1993-04-02|1994-09-13|Paul W. Scarberry|Reclosable bag with offset end seal|

---

US5564834A|1994-04-15|1996-10-15|Dowbrands L.P.|Adhesive closure having enhanced burst strength for flexible bag|

---

IT1273180B|1994-05-05|1997-07-07|Sales Spa|OPENING AND CLOSING DEVICE FOR FLEXIBLE CONTAINERS AND CONTAINER EQUIPPED WITH SUCH DEVICE|

---

IT1273179B|1994-05-05|1997-07-07|Sales Spa|OPENING DEVICE FOR FLEXIBLE CONTAINERS, CONTAINER PROVIDED WITH SUCH DEVICE AND PROCEDURE FOR ITS APPLICATION|

---

US5476323A|1995-05-08|1995-12-19|Gold; Peter|Plastic bag with improved adhesive closure|

---

US5601368A|1995-05-11|1997-02-11|Lakeland Micro, Inc|Tamper-evident container with reclosable fastener and method for making|

---

AU6223896A|1995-06-07|1996-12-30|Pechiney Recherche|Strip for forming peelable reclosable packaging material and package|

---

US5882789A|1995-06-07|1999-03-16|Pechiney Recherche|Packaging material for forming an easy-opening reclosable packaging material and package|

---

US5882749A|1995-06-08|1999-03-16|Pechiney Recherche|Easy-opening reclosable package|

---

DE19548789A1|1995-12-27|1997-07-03|Hoechst Trespaphan Gmbh|Peelable, sealable polyolefinic multilayer film, process for its preparation and its use|

---

CA2273266C|1996-07-24|2005-02-15|Illinois Tool Works Inc.|Fastener tape material, bag utilizing fastener tape material, and method of manufacture thereof|

---

JPH1053252A|1996-08-07|1998-02-24|Katsuichi:Kk|Bag for packing goods such as fishhook|

---

JPH10338244A|1997-06-03|1998-12-22|Houseki Planning:Kk|Sealed bag with tape stuck thereto and its production|

---

US5956924A|1997-11-07|1999-09-28|Rcl Corporation|Method and apparatus for placing a product in a flexible recloseable container|

---

IT1296883B1|1997-12-18|1999-08-02|Safta Spa|FOLDABLE PACKAGING SYSTEM AND RELATED MANUFACTURING PROCEDURES|

---

USD447054S1|1998-01-21|2001-08-28|The Procter & Gamble Company|Container closure|

---

ES2213365T3|1998-04-16|2004-08-16|Cryovac, Inc.|TERNARY POLYMER BLEND, LAMINARY ELEMENT CONTAINING IT AND EASY OPENING PACKAGING MANUFACTURED WITH IT.|

---

US6991375B2|1998-11-06|2006-01-31|Velcro Industries B.V.|Reclosable packaging|

---

US6048100A|1999-03-10|2000-04-11|Industrial Label Corp.|Resealable closure for a bag|

---

EP1181216B1|1999-03-29|2003-05-28|Amcor Flexibles Europe A/S|Stand-up bag|

---

US6395321B1|1999-06-01|2002-05-28|Schreiber Foods, Inc|Process for sealing food products such as processed cheese slices|

---

EP1234781B1|1999-06-02|2004-09-15|Alcan Technology & Management AG|Child-resistant packaging for tablets|

---

US6244747B1|1999-09-30|2001-06-12|Cryovac, Inc.|Contoured pouch with pourable spout, and apparatus and process for producing same|

---

SE9904210L|1999-11-21|2000-12-04|Jan Soederholm|Device for sample bag|

---

US6589622B1|1999-12-14|2003-07-08|Prime Label & Screen, Inc.|Resealable label flap including tamper evident tab|

---

JP3311721B2|2000-02-07|2002-08-05|株式会社ヤマガタグラビヤ|Bags for selling small articles such as batteries|

---

JP2001252983A|2000-03-09|2001-09-18|Fuji Seal Inc|Connecting structure of heat adhesive resin sheet and method for connecting|

---

IT1319964B1|2000-03-15|2003-11-12|Sales Spa|MACHINE FOR THE APPLICATION ON SEALED FLEXIBLE CONTAINERS OPENING DEVICES SUBSTANTIALLY IN THE FORM OF TAPES.|

---

US6461044B1|2000-06-12|2002-10-08|Sonoco Development, Inc.|Reclosable bag formed on form, fill and seal machine|

---

AU9635801A|2000-09-29|2002-04-08|Velcro Ind|Reclosable package and closure strip|

---

GB0104207D0|2001-02-21|2001-04-11|British American Tobacco Co|Smoking article packaging|

---

FR2823722B1|2001-04-18|2003-07-25|Danisco Flexible France|CLOSABLE FLEXIBLE PACKAGING|

---

DE10120366A1|2001-04-25|2002-10-31|Convenience Food Sys Wallau|Plastic packaging with at least one sealed knob|

---

JP2003072777A|2001-08-31|2003-03-12|Toosero Packs Kk|Packaging bag|

---

SE0104399D0|2001-12-27|2001-12-27|Regath Hb|Label|

---

US20030152669A1|2002-01-18|2003-08-14|Parimal Vadhar|Self venting peelable microwaveable vacuum skin package|

---

US20030215165A1|2002-05-20|2003-11-20|Hogan Robert E.|Easy-open strip and bags incorporating the same|

---

JP3901592B2|2002-06-24|2007-04-04|株式会社フジキカイ|Resealable packaging bag and bag making and filling machine|

---

AU2002360132B2|2002-10-18|2009-11-19|Amcor Flexibles France|Resealable flexible package|

---

DE60235760D1|2002-10-18|2010-05-06|Amcor Flexibles France|Reclosable flexible packaging|

---

US7055683B2|2002-12-20|2006-06-06|E. I. Du Pont De Nemours And Company|Multiple compartment pouch and beverage container with smooth curve frangible seal|

---

US20040166261A1|2003-02-20|2004-08-26|Pockat Gregory Robert|Heat-shrinkable packaging receptacle|

---

WO2004080826A2|2003-03-12|2004-09-23|Avery Dennison Corporation|Reusable closures for packages and methods of making and using the same|

---

US7041042B2|2003-04-25|2006-05-09|Elkay Plastics Company, Inc.|Method for making a seamless plastic motion discomfort receptacle|

---

DE10326298B4|2003-06-11|2008-03-20|Avery Dennison Zweckform Office Products Europe Gmbh|label sheet|

---

WO2005005256A2|2003-07-04|2005-01-20|Cfs Weert B.V.|Package|

---

US7306370B2|2003-07-31|2007-12-11|Kraft Foods Holdings, Inc.|Shrouded flexible packages|

---

FI121848B|2003-10-06|2011-05-13|Upm Raflatac Oy|Label laminate and process for manufacturing a label laminate|

---

NZ547832A|2003-12-09|2009-05-31|Amcor Ltd|Bulk packaging multi-wall sack and apparatus for manufacturing the sack|

---

JP4412463B2|2003-12-11|2010-02-10|藤森工業株式会社|Multi-chamber container|

---

ITMI20040604A1|2004-03-29|2004-06-29|Ilapak Res & Dev Sa|APPLICATION STATION OF OPENING-CLOSING STRIP SEGMENTS ON PLASTIC STRIP FILMS INTENDED FOR FORMING PACKAGES|

---

US7217033B2|2004-05-13|2007-05-15|Fres-Co System Usa, Inc.|Aseptic packaging for foods and systems and methods for aseptically packaging foods|

---

US7216764B2|2004-08-16|2007-05-15|Sealstrip Corporation|Easy-open packages|

---

JP2006111285A|2004-10-13|2006-04-27|Asahi Kasei Pax Corp|Easy-unsealable packaging material having superior barrier properties|

---

US20060093765A1|2004-10-29|2006-05-04|Sealed Air Corporation |Multi-compartment pouch having a frangible seal|

---

DE102004063410A1|2004-12-23|2006-07-06|Wipak Walsrode Gmbh & Co.Kg|Resealable packaging|

---

US7422782B2|2005-02-01|2008-09-09|Curwood, Inc.|Peelable/resealable packaging film|

---

JP2006224984A|2005-02-16|2006-08-31|Kido Shigyo Kk|Bag for food packaging|

---

DE102005018458A1|2005-04-20|2006-10-26|Wipak Walsrode Gmbh & Co. Kg|Sealing strips, associated foil packaging and their manufacture|

---

ITTO20050269A1|2005-04-21|2006-10-22|Sales Spa|OPENING DEVICE FOR HERMETIC FLEXIBLE CONTAINERS|

---

US20060251342A1|2005-05-04|2006-11-09|Forman Josephine A|Reclosable packages|

---

US7305805B2|2005-09-22|2007-12-11|Frito-Lay North America, Inc.|Method for making a flexible reclosable package|

---

US8398306B2|2005-11-07|2013-03-19|Kraft Foods Global Brands Llc|Flexible package with internal, resealable closure feature|

---

US20070104398A1|2005-11-10|2007-05-10|Ours David C|Container With Peelable Seal Assembly and Method of Making|

---

DE102005060728A1|2005-12-16|2007-06-28|Wipak-Gryspeert S.A.S.|Plastic bag for packing cheese is made from multilayer plastic with inner layer consisting of at least one polyethylene and at least one copolymer of ethylene and one or more alpha-olefins; and outer layer containing polypropylene|

---

JP5197921B2|2006-03-17|2013-05-15|株式会社生産日本社|Plastic bag body|

---

FR2899208B1|2006-04-03|2011-01-07|Decomatic Sa|REINFORCED SEALED CLOSURE ENVELOPE|

---

GB2438393B|2006-05-23|2008-04-30|Britton Decoflex|Tamper evident security bag|

---

US20080050055A1|2006-08-18|2008-02-28|Andrew Austreng|Resealable Package with Tamper-Evident Structure and Method for Making Same|

---

GB2441320A|2006-09-04|2008-03-05|Cadbury Schweppes Plc|Easy-open packaging|

---

GB0617684D0|2006-09-07|2006-10-18|Cadbury Schweppes Plc|Packing of confectionery items|

---

US20080060751A1|2006-09-07|2008-03-13|Evan Arrindell|Island label apparatus and method|

---

DK200601283A|2006-10-04|2008-04-05|Danapak Flexibles As|Process for making a resealable packaging|

---

MX2009004232A|2006-10-19|2009-06-26|Wrigley W M Jun Co|Reclosable packages for confectionery products.|

---

EP1930252B1|2006-12-05|2010-08-11|The Procter & Gamble Company|Recloseable bag|

---

AT477196T|2006-12-05|2010-08-15|Procter & Gamble|RE-LOCKABLE BAG|

---

US20080138478A1|2006-12-12|2008-06-12|Cryovac, Inc.|Vacuum packaging of a meat product using a film having a carbon dioxide scavenger|

---

US20100113239A1|2007-03-21|2010-05-06|Wm. Wrigley Jr. Company|Method for making a flexible reclosable package|

---

JP2008230666A|2007-03-22|2008-10-02|Daiwa Packs:Kk|Packaging bag with header|

---

USD597857S1|2007-03-26|2009-08-11|David Lin|Airtight microwaveable self-venting reclosable pouch|

---

US20080260305A1|2007-04-20|2008-10-23|Shah Gautam P|Easy-open/reclosable bag and package|

---

US20090053372A1|2007-08-23|2009-02-26|Samuel Hambrick|Resealable food bags and method thereof|

---

WO2009065120A1|2007-11-16|2009-05-22|Hickey Charles P|Slap-on resealable closure|

---

EP2067710B1|2007-12-05|2014-03-26|The Procter & Gamble Company|Recloseable Bag|

---

US20100290719A1|2008-01-08|2010-11-18|Yeager James W|Improved recloseable package for pinch-grip opening|

---

US7681732B2|2008-01-11|2010-03-23|Cryovac, Inc.|Laminated lidstock|

---

US8783950B2|2008-02-07|2014-07-22|Packs Co., Ltd.|Packaging body and film made of resin used therefor|

---

US9975290B2|2008-03-06|2018-05-22|Sonoco Development, Inc.|Flexible packaging structure with built-in tamper-evidence features and method for making same|

---

EP2108507A1|2008-04-07|2009-10-14|Danapak Flexibles A/S|A method of making and using a sheet laminate|

---

FR2929930B1|2008-04-11|2012-11-02|Decomatic Sa|SEALED PLASTIC ENVELOPE WITH REPORTING CLOSURE ADHESIVE.|

---

US20090257686A1|2008-04-14|2009-10-15|Illinois Tool Works Inc.|Flow-wrapper package with reclosure|

---

US20090279813A1|2008-05-09|2009-11-12|Pokusa Kenneth C|Cohesive Reclosable Fasteners For Flexible Packages|

---

US8354132B2|2008-06-06|2013-01-15|Cryovac, Inc.|Laminated lidstock and package made therefrom|

---

US20090311454A1|2008-06-17|2009-12-17|Cryovac, Inc.|Laminated lidstock with pull tab|

---

US20100111453A1|2008-10-31|2010-05-06|Frito-Lay North America, Inc.|Two Side Cut Reseal With Pressure Sensitive Adhesive and the Method for Making Same|

---

US20100278454A1|2009-04-29|2010-11-04|Sonoco Development, Inc.|Tamper-evident laminate structure|

---

US20110038569A1|2009-08-13|2011-02-17|Scott Huffer|Easy-open resealable package|

---

RU2012151925A|2010-05-18|2014-06-27|Крафт Фудс Глобал Брэндс Ллк|EASY TO OPEN FLEXIBLE FILM PACKAGES AND METHODS OF MANUFACTURE|US20090208147A1|2002-06-06|2009-08-20|Mark Steele|Multi-compartment flexible package|

---

US8646975B2|2009-08-14|2014-02-11|Cryovac, Inc.|Easy open and reclosable package with discrete tape and die-cut web|

---

KR20140035308A|2010-10-21|2014-03-21|유니버시티 오브 매사추세츠|High capacity easy release extended use adhesive devices|

---

US8800250B2|2011-02-16|2014-08-12|Cryovac, Inc.|Easy open and reclosable package with discrete laminate, with die-cut, anchored to second side panel|

---

US8905638B2|2011-02-16|2014-12-09|Cryovac, Inc.|Easy open and reclosable package with die-cut web, and discrete strip anchored to second side panel|

---

US9211976B2|2011-02-16|2015-12-15|Andrew W. Moehlenbrock|Easy open and reclosable package with discrete laminate, with die-cut, anchored to second side panel|

---

CN106313756A|2012-01-19|2017-01-11|马萨诸塞大学|Releasable adhesive devices|

---

US9260214B2|2012-02-13|2016-02-16|Cryovac, Inc.|Easy open and reclosable package with panel section with die-cut, and reclosure mechanism|

---

US8727621B2|2012-02-13|2014-05-20|Cryovac, Inc.|Easy open and reclosable package with die-cut web and reclosure mechanism|

---

US8807834B2|2012-02-13|2014-08-19|Cryovac, Inc.|Easy open and reclosable package with panel section with easy open sealant, and reclosure mechanism|

---

CN104136323B|2012-02-28|2016-03-30|宝洁公司|For the formation of the method for packaging|

---

US10259602B2|2012-02-28|2019-04-16|The Procter And Gamble Company|Method for forming packages|

---

IN2015DN00608A|2012-07-24|2015-06-26|Procter & Gamble|

---

CN104981526B|2013-02-06|2017-07-04|马萨诸塞大学|Load-bearing adhesion material with adjustable angle|

---

EP2970722A4|2013-03-14|2016-12-07|Univ Massachusetts|Devices for application and load bearing and method of using the same|

---

WO2014152479A2|2013-03-15|2014-09-25|Mars, Incorporated|Package with resealable opening|

---

US9603419B2|2013-03-15|2017-03-28|University Of Massachusetts|High capacity easy release extended use adhesive closure devices|

---

WO2015002651A1|2013-07-03|2015-01-08|Curwood, Inc.|Scored package|

---

CA2940546C|2014-02-25|2019-06-18|Mark Steele|Package having a lap or fin seal without an air gap formed adjacent the seal|

---

US9783330B2|2014-03-06|2017-10-10|The Procter & Gamble Company|Method and apparatus for shaping webs in a vertical form, fill, and sealing system|

---

US9643812B2|2014-03-06|2017-05-09|The Procter & Gamble Company|Method for pleating or shaping a web|

---

EP3145828B1|2014-05-19|2020-02-05|Bemis Company, Inc|Resealable flexible packages|

---

US9586724B2|2014-06-10|2017-03-07|Cryovac, Inc.|Easy open and reclosable gusseted package with die-cut web and reclosure mechanism|

---

US10251794B2|2014-08-04|2019-04-09|Grupo P.I. Mabe, S.A. De C.V.|Bag for packing disposable hygiene items|

---

AU2016299098B2|2015-07-30|2018-09-27|Borealis Ag|Polypropylene composition with improved hot-tack force|

---

DE102016109461A1|2016-05-23|2017-11-23|Südpack Verpackungen GmbH & Co. KG|packaging|

---

EP3630646B1|2017-05-26|2021-08-25|The Procter & Gamble Company|Flexible packages with self-folding|

---

EP3630645B1|2017-05-26|2021-08-25|The Procter & Gamble Company|Methods of self-folding flexible packages|

---

WO2019221049A1|2018-05-16|2019-11-21|出光ユニテック株式会社|Bag body and method for manufacturing bag body|

---

JP2019202822A|2018-05-16|2019-11-28|出光ユニテック株式会社|Bag body and method of manufacturing bag body|

法律状态:
2018-03-27| B15K| Others concerning applications: alteration of classification|Ipc: B65D 75/58 (2006.01), B31B 70/00 (2017.01), B65B 9 |

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2019-01-15| B06F| Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]|

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2020-04-22| B06U| Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]|

---

2020-09-15| B11B| Dismissal acc. art. 36, par 1 of ipl - no reply within 90 days to fullfil the necessary requirements|

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2021-06-01| B350| Update of information on the portal [chapter 15.35 patent gazette]|

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2021-10-13| B350| Update of information on the portal [chapter 15.35 patent gazette]|

优先权:

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申请号 | 申请日 | 专利标题

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US27429109P| true| 2009-08-14|2009-08-14|

---

US12/844,097|US9221591B2|2009-08-14|2010-07-27|Easy open and reclosable package with discrete laminate with die-cut|

---

PCT/US2010/043618|WO2011019511A2|2009-08-14|2010-07-29|Easy open and reclosable package with discrete laminate with die-cut|

---