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    • 专利摘要:
    REFLEXABLE FLEXIBLE FILM PACKAGING PRODUCTS AND MANUFACTURING METHODS. A resealable flexible film package can have a flexible film having a fold forming a folded edge (34), at least two opposite free edges (26, 28) and at least one front panel (64) and one rear panel (66), the opposite free edges (16, 28) and at least one front panel (64) and one rear panel (66), the opposite free edges being sealed together to form at least one sealed edge, so that the front and rear panels define an internal space; a groove (38) in the flexible film of the front panel forming a flap that defines an opening when moved towards the folded edge and has a separating force for the flap of the film; and a handle (24) extending uninterrupted from edge to edge of at least two opposing free edges, being fixed on the film (22) by pressure sensitive adhesive, and extending beyond the groove on the front panel to reseal the packaging opening defined by the flap, the pressure sensitive adhesive having a film resistance between the film and the handle that is greater than the separation force along the groove, and the handle still having a part (...).
    公开号:BR112013023727B1
    申请号:R112013023727-9
    申请日:2012-03-16
    公开日:2020-12-22
    发明作者:Deborah A. Lyzenga；Jeffrey T. Weber；James Anthony Glydon；Evan Michael Ziolkowski
    申请人:Intercontinental Great Brands Llc；
    IPC主号:
    专利说明:

    RELATED REQUESTS
    [0001] This application claims the benefit of United States Provisional Patent Application Number 61/453872, filed on March 17, 2011, which is incorporated herein by reference in its entirety. FIELD OF THE INVENTION
    [0002] The present products and methods refer to packaging and, in particular, resealable flexible flow winding packaging products and methods with a closing layer (label) on the film having a line of weakness. BACKGROUND OF THE INVENTION
    [0003] Flexible packaging is often used to retain and seal products for shipment and storage. It is commonly used for a variety of consumer products, including food products (eg, wafer tubes, chewing gum sticks, chocolate bars, cookies and the like). In one approach, the packaging can be a foil laminate and takes the shape of the products it contains. The packages can be formed by a plurality of walls sealed to form an internal cavity. Examples may include flow pack packaging, three-sided seals, form-filled sealing and the like.
    [0004] The flexible film packaging of the type of flow winding can use a continuous film (blanket) to envelop product during the assembly. In one configuration, roll-by-flow (also known as vertical fin sealing or overlap sealing, end-sealing packaging, horizontal bagging and pillow-pouch packaging) can position a film, such as polyethylene or polypropylene, adjacent to a product, wrap the film around the product, form a seal at the ends of the film, then form seals on each side of the product. The seals can be permanent and provide some level of structural integrity. Flexible film packaging has many other advantages. They can be manufactured at substantially lower cost than rigid containers, are lightweight, resulting in reduced transportation and easier packaging costs, resulting in less storage space.
    [0005] Despite these advantages, flexible packaging can sometimes be difficult to open and is typically not suitable when a user wants to reseal / reseal a package after its initial opening, such as when there is more product in the package than for a single product. use. Attempts are known in the art to provide some re-wrapping of the flexible packaging, using discrete closing layers (labels), which require precise label placement (positioning) on the packaging through an opening configured in the film (see generally, Pat US 5,725,311 to Ponsi). SUMMARY OF THE INVENTION
    [0006] Therefore, embodiments are provided here for a flexible, easy-to-open, flow-wrap film / wrapper having a closure layer / tag laminated on top of a groove (tear) line of the film flow winding, which defines a packaging opening. A pressure sensitive adhesive (PSA) between the film and the label can allow for easy opening and resealing or resealing, while maintaining the integrity of the packaging.
    [0007] In one embodiment, a resealable flexible film package may have a flexible film having a fold forming a folded edge, at least two opposite free edges and at least one front and rear panel, the opposite free edges being sealed together to form at least one sealed edge, so that the front and rear panels define an internal space; a groove in the flexible film of the front panel forming a flap that defines an opening when moved towards the folded edge and has a separating force for the flap of the film; and a label extending uninterrupted from edge to edge of at least two opposing free edges being attached to the film by pressure sensitive adhesive and extending beyond the groove on the front panel to reseal the packaging opening defined by the flap, the pressure sensitive adhesive having a peeling resistance between the film and the label which is greater than the separating force along the groove, and the label still having an adhesion-free part defining a pull tab.
    [0008] In some embodiments, the label may extend beyond the folded edge to the rear panel. The groove line can be arched or perforated. In some embodiments, the end of the groove line may end in a tear propagation reduction pattern, such as a 'J-hook' or a 'smile'.
    [0009] In some embodiments, the label may extend equidistant over the front and rear panel from the folded edge. The film may be a printed laminated film laminate, having a reverse printed OPP transparent film attached to a white OPP packaging film. In some embodiments, the transparent OPP film may have a gauging range of about 90 - 230 and the white OPP packaging film may have a gauging range of about 90 - 230. In some embodiments, the transparent OPP film can be about 118 gauge and the white OPP packaging film about 118. The label can be a transparent BOPP film of a gauge in the range of about 160 to 240. In other embodiments, the The film can be a transparent BOPP film of about 200 gauge. Approximately, the non-adhesive edge of the label can be a part of the label folded over itself, so that the PSA surfaces are adjacent to each other.
    [0010] In one approach, a resealable package may have a first substrate forming a plurality of panels having peripheral edges to form an internal cavity for receiving items: a flap defined by a line of weakness in at least one first panel that defines an opening for the internal cavity, when the first panel is separated in the line of weakness; a second substrate adhered to the first substrate and having a first part extending beyond the line of weakness, to form a packaging reseal zone, and a second part extending from a part of the first panel to a part of the second panel and wherein the second substrate extends uninterrupted from a peripheral edge to an opposite peripheral edge. In some embodiments, the line of weakness may be a perforation. In other embodiments of this approach, the first substrate may be a printed wrap film laminate, comprising a reverse printed oriented polypropylene (OPP) transparent film lit to a white OPP packaging film. Also, in some embodiments, the transparent OPP film can have a gauge in the range of about 48 230 and the white OPP packaging film can have a gauge in the range of about 48 - 230. In other approaches, the transparent film OPP can be about 118 gauge and the white OPP packaging film is about 118; the second substrate may be a transparent gauze BOPP film in the range of about 160 to 240; the first substrate may be a transparent 200-gauge BOPP film; and / or the non-adhesive edge of the second substrate can be a part of the second substrate folded over itself, so that the PSA surfaces are adjacent to each other.
    [0011] In some embodiments, the laminate to form a resealable flexible package may have a continuous flexible film web having a longitudinal axis; a continuous label applied to the flexible film along the longitudinal axis with pressure sensitive adhesive; and the blanket and tag forming a continuous series of similar packaging forming models, the flexible film of each model having a line of weakness forming a flap on the film along the label to define an opening. In some embodiments, the groove line can be continuous in the longitudinal direction along the laminate; arched; or sinusoidal. A portion of the label may be free of handle to define a pull tab.
    [0012] In some embodiments, a resealable package may have a laminated multilayer film, the laminated film having at least one seal layer, a barrier layer, an adhesive layer and a curing layer; a line of weakness formed in the laminated multilayer film, the line of weakness defining at least in part a packaging opening; and a closing layer attached to the laminated multilayer film with an adhesive and extending over the line of weakness.
    [0013] In other embodiments, the laminated film may also have a polyester layer and an additional adhesive layer. In other embodiments, the laminated film further comprises a release layer. In still other embodiments, the curing layer may have a fiber substrate.
    [0014] In other embodiments, a method for forming a resealable flexible packaging laminate may have the steps of providing a flexible film laminate having a longitudinal axis; apply a continuous label to the flexible film along the longitudinal axis with pressure sensitive adhesive (PSA); and grooving the laminate forming a continuous series of similar packaging forming models and forming a flap on the film along the label to define an opening. In other embodiments, the method can optionally add the step of applying a weakening label to the PSA by forming a pull tab prior to the step of applying continuous label to the flexible film. In other embodiments, the method can optionally add the step of removing a liner from the label to expose the PSA prior to the step of applying the continuous label to the flexible film. In other embodiments, the method can optionally add the step of grooving the label after the step of applying the continuous label to the flexible film; and removing the label groove matrix. In other embodiments, the method can optionally add the step of folding the laminate over a product to create a folded edge; and forming a seal on the folded edge opposing the free edges of the laminate, to form front and rear panels, defining an internal space to contain product. In other embodiments, the method can optionally add the step of cutting a seal to define an individual package.
    [0015] In some embodiments, the apparatus for forming a resealable flexible film package may have a laminating roll to laminate a continuous flexible film web having a longitudinal axis on a continuous label along the longitudinal axis with sensitive adhesive. pressure (PSA); a first device for producing a line of weakness formed in the laminate after laminating the flexible film on the label, forming a continuous series of patterns forming similar packages and forming a flap on the film along the label to define an opening; a folding device for creating a folded edge over a product; and a sealing device to form a seal on the opposite free edges of the folded edge of the laminate to form front and rear panels defining an internal space for containing product. In other embodiments, the apparatus may optionally have a second grooving device for grooving the label after laminating the laminate. In other embodiments, the apparatus may optionally have a cutting device for cutting the seal to form an individual package.
    [0016] In other embodiments, a package can be formed by a process having the steps of providing a film laminate; continuously applying a label laminate to the adhesive laminated film laminate; cutting the label laminate to form labels; the removal of the label laminate does not form the labels of the film laminate; and forming lines of weakness in the film laminate corresponding to the labels to define packaging openings. The package can also be formed by separating the film laminate having the labels in packaging models: wrapping the film laminate having the labels around a food product and forming individual flexible film packages; or separating the film packs from each other. In some embodiments, each of the labels may have a first part including a pull tab, the first part being arranged beyond the lines of weakness towards the pull tab. Optionally, the first part of the shaped packaging labels can also have a resealing part with pressure sensitive adhesive. In some embodiments, the labels may also have a second part arranged in addition to the lines of weakness away from the pull tab. In other embodiments, the second part of the labels may include a pair of tabs. In some embodiments, the package can be formed with the additional step of folding the film laminate around a food product, where the package can include a package fold and the pair of tabs of the second part of the labels extend. around the packaging fold.
    [0017] In other embodiments, a method of forming a series of resealable film packs may include the steps of providing a film laminate; continuously applying a label laminate to the flexible film laminate with adhesive; cutting the label laminate to form packaging labels by removing the label laminate that does not form the labels; and forming lines of weakness in the film laminate corresponding to the labels, to define packaging openings. BRIEF DESCRIPTION OF THE DRAWINGS
    [0018] Fig. 1 illustrates a front perspective view of a resealable flexible film package exemplary of the present embodiments in an open position;
    [0019] Fig. 2 illustrates a front perspective view of a resealable flexible film package exemplary of the present embodiments in a closed position;
    [0020] Fig. 3 illustrates a rear perspective view of a resealable flexible film package exemplary of the present embodiments;
    [0021] Fig. 4 illustrates a plan view of a section of a film / label laminate prior to assembly of a resealable flexible film package exemplary of the present embodiments;
    [0022] Fig. 5 illustrates a partial cross-sectional view of a resealable flexible film package exemplary of the present embodiments, taken along lines V - V of Fig. 2;
    [0023] Fig. 6 illustrates a side view of an exemplary in-line assembly process for forming and packaging a product using a grooved flexible film packaging of the present embodiments with a continuous label;
    [0024] Fig. 7 illustrates a cross-sectional view taken along section line VII - VII of Fig. 6 of an end sealing device of an exemplary assembly process, to form and package a product using a flexible film grooved package of the present embodiments with a continuous label;
    [0025] Fig. 8 illustrates a cross-sectional view taken along section line VIII - VIII of Fig. 6 of a sealing and lateral cutting device in an exemplary assembly process for forming and packaging a product using a grooved flexible film package of the present embodiments is provided with a continuous label;
    [0026] Fig. 9 illustrates an alternative arched groove line with an outwardly oriented J-hook configuration for a resealable flexible film package exemplary of the present embodiments;
    [0027] Fig. 10 illustrates an alternative arcuate line with a 'smile' configuration for a resealable flexible film packaging of the present embodiments;
    [0028] Fig. 11 illustrates an alternative arcuate groove line with a pair of PIFs (packaging integrity details) outside the arc configuration for a resealable flexible film package exemplary of the present embodiments
    [0029] Fig. 12 illustrates an alternative trapezoidal groove line configuration with rounded corners for a resealable flexible film package exemplary of the present embodiments;
    [0030] Fig. 13 illustrates an alternative 'box-like' groove line configuration with rounded corners for a resealable flexible film package exemplary of the present embodiments;
    [0031] Fig. 14 illustrates an alternative general arch groove line with rounded edges configuration for a resealable flexible film package exemplary of the present embodiments;
    [0032] Fig. 15 illustrates a generally straight cut groove line for an alternative resealable flexible film package exemplary of the present embodiments;
    [0033] Fig. 16 illustrates an alternative wide arc groove line with straight sides having an offset distal tongue end configuration for a resealable flexible film package exemplary of the present embodiments;
    [0034] Fig. 17 illustrates an alternative arched groove line configuration with a pair of dug PIFs for a resealable flexible film package exemplary of the present embodiments;
    [0035] Fig. 18 illustrates a J-hook configuration oriented into an alternative arcuate groove line for a resealable flexible film package exemplary of the present embodiments;
    [0036] Fig. 19 illustrates an alternative 'V' shaped groove line configuration for a resealable flexible film package exemplary of the present embodiments;
    [0037] Fig. 20 illustrates an alternative arched and perforated groove line configuration for a resealable flexible film package exemplary of the present embodiments;
    [0038] Fig. 21 illustrates an alternative arched groove line with a pair of PIFs within the arc groove line configuration for a resealable flexible film package exemplary of the present embodiments;
    [0039] Fig. 22 illustrates a J-hook configuration oriented into an alternative 'deep' arched groove line for a resealable flexible film package exemplary of the present embodiments;
    [0040] Fig. 23 illustrates an alternate 'V' shaped groove line configuration, with a rounded point for a resealable flexible film package exemplary of the present embodiments;
    [0041] Fig. 24 illustrates an alternative arched groove line with an alternating PIF within the arc groove line configuration for a resealable flexible film package exemplary of the present embodiments;
    [0042] Fig. 25 illustrates an alternative arched groove line with an alternative pair of PIFS within the arc groove line configuration for a resealable flexible film package exemplary of the present embodiments;
    [0043] Fig. 26 illustrates an alternative arched groove line with an alternating PIF within the arc groove line configuration having a tear propagation limiter for a resealable flexible film package exemplary of the present embodiments;
    [0044] Fig. 27 illustrates an alternative arched groove line with an alternating pair of PIFs within the arc groove line configuration having a tear propagation limiter for a resealable flexible film package exemplary of the present embodiments;
    [0045] Fig. 28 illustrates a section of a roll of labels having a grooved label edge configuration shaped like a 'sine wave';
    [0046] Fig. 29 illustrates a front perspective view of a first exemplary alternative resealable flexible film package of the present embodiments in a closed position;
    [0047] Fig. 30 illustrates a front perspective view of a first exemplary alternative resealable flexible film package of the present embodiments in an open position;
    [0048] Fig. 31 illustrates a front perspective view of a second alternative resealable flexible film package alternative to the present embodiments in a closed position.
    [0049] Fig. 32 illustrates a perspective front view of a second alternative resealable flexible film package alternative to the present embodiments in an open position;
    [0050] Fig. 33 illustrates a side view of an exemplary offline assembly process for forming and packaging a product using a flexible film grooved packaging of the present embodiments with a continuous label;
    [0051] Fig. 34 illustrates a perspective front view of a first alternative resealable flexible film packaging label alternative to the present embodiments in an open position;
    [0052] Fig. 35 illustrates a front perspective view of a second alternative resealable flexible film package alternative to the present embodiments in a closed position;
    [0053] Fig. 36 illustrates a perspective front view of a second alternative resealable flexible film package alternative to the present embodiments in an open position;
    [0054] Fig. 37 illustrates a plan view of a section of a film / label laminate prior to assembly of an exemplary resealable flexible film package according to an approach of the present embodiments;
    [0055] Fig. 38 illustrates a plan view of a section of a film / label laminate before assembling an exemplary resealable flexible film package according to an approach of the present embodiments;
    [0056] Fig. 39 illustrates a plan view of a section of a film before laminating a label and before assembling an exemplary resealable flexible film package according to an approach of the present embodiments;
    [0057] Fig. 40 illustrates a plan view of a section of a film / label laminate of an exemplary resealable flexible film package according to an approach of the present embodiments;
    [0058] Fig. 41 illustrates a plan view of a section of a film / label laminate before assembling an exemplary resealable flexible film package, according to an approach of the present embodiments;
    [0059] Fig. 42 illustrates a plan view of a section of a film / label laminate prior to the assembly of an exemplary resealable flexible film package according to an approach of the present embodiments;
    [0060] Fig. 43 illustrates a partial cross-sectional view of a section of a film / label laminate of a resealable flexible film package exemplary of the present embodiments, taken along section lines XLIII / XLIV - XLIII / XLIV of Fig. 42;
    [0061] Fig. 44 illustrates a partial cross-sectional view of a section of a film / label laminate of a resealable flexible film package exemplary of the present embodiments, taken along section lines XLIII / XLIV - XLIII / XLIV of Fig. 42;
    [0062] Fig. 45 illustrates a top view of an exemplary in-line assembly process for forming and packaging a product using a grooved flexible film packaging according to an approach of the present embodiments with a distinct label. ;
    [0063] Fig. 46 illustrates a front perspective view of an exemplary resealable flexible film package according to an approach of the present embodiments in a closed position;
    [0064] Fig. 47 illustrates a rear perspective view of an exemplary resealable flexible film package according to an approach of the present embodiments; and
    [0065] Fig. 48 illustrates a cross-sectional view taken along the section line XLVIII - XLVIII of Fig. 45 of a sealing and cutting end device of an exemplary assembly process, to form and package a product using a grooved flexible film package of the present embodiments is provided with a continuous label;
    [0066] Figs. 49 - 53 illustrate alternate groove lines for opening resealable flexible film packages of the present embodiments;
    [0067] Fig. 54 illustrates a front perspective view of an exemplary resealable flexible film package according to an approach of the present embodiments in a closed position; and
    [0068] Fig. 55 illustrates a rear perspective view of an exemplary resealable flexible film package according to an approach of the present embodiments. DETAILED DESCRIPTION OF THE PRESENT WAYS
    [0069] Here are provided various embodiments of an easily opened and resealable packaging, having in some embodiments a front and rear panel formed by a flexible film blanket substrate having a closing layer or label substrate disposed on it. The label can be applied continuously to the film. In some embodiments, the label may be cut off at the top to form a continuous shaped label or even a label package distinct from a continuously applied label. Refillable packaging can be easily opened and resealed, while maintaining the integrity of the packaging. As an approach, resealable packages are formed with a flexible film laminated with a continuous label by a pressure sensitive adhesive. In one configuration, a four-sided package illustrating a flexible film folded laminate that forms the front and rear panels, having four peripheral edges - one folded edge and three sealed edges.
    [0070] In such a configuration, no fin or flap sealing is required. By one approach, the label may extend beyond a panel of the resealable package and may extend on both sides of a peripheral film edge (e.g., the edge seal or the fold line). In one aspect, the label extends beyond a preconfigured groove line (i.e., a tear line or line of weakness) formed in the laminate on a first edge. We note that a line of weakness can include any effort to compromise the integrity of the film, which can include complete separation of the film (eg, Fig. 15).
    [0071] On a continuous label surface facing the flexible film laminate, the continuous label may have an adhesive-free area (eg, along all or part of the first edge) to provide a pull tab for facilitate easy opening of the packaging. In addition, such an adhesive free pull tab can be arranged on one side of the package with the groove line, so that the adhesive free pull tab is arranged close to the packaging opening or flap. The adhesive-free pull tab can be formed by creating a weakened area of the PSA. In one approach, the PSA is cushioned over a portion of the continuous label surface by folding over a portion of the label. A second edge of the label may extend over a peripheral edge to part of an adjacent panel (eg, the back panel). It is noted, however, that in other configurations more than two panels may be present, such as a box having six panels. In this example, the adjacent panel over which the label extends can be a top, side or bottom panel.
    [0072] Although the present embodiments are described for a laminated label over a groove line of a flexible laminate, several variations are provided within the scope of these embodiments. For example, as described here, the packaging can be configured for 're-closing' for product containment after initial opening. It is noted that, in some embodiments, the reseal detail can also 'reseal' the packaging. In other words, the packaging can be hermetically sealed (or close to hermetically sealed) to maintain the freshness of the product and / or protect against moisture loss. This resealing detail can be beneficial for packaging embodiments that may have an initial seal against the ambient atmosphere (eg, providing a gas and moisture barrier). A resealing feature can extend the freshness time of the product.
    [0073] It is further noted that the present embodiments can be applied to a variety of packaging designs employing a variety of packaging materials. For example, a four-sided package is described, although the package can be round, oval or have any number of sides, side seals, folded edges, shapes and combinations thereof. Also a package of two panels is described, although the package may include a plurality of panels (such as a box), round gloves (such as for a round cookie glove) and the like. Packaging materials can include various polymeric laminated films described here, as well as paper, cardboard, laminated poly-paper sheets, coated polymers, coated paper (e.g., wax paper) and the like and combinations thereof. Although the present embodiments are described for food product and chewing gum applications, the embodiments can also be applied to non-food applications, such as medical, pharmaceutical, industrial packaging applications.
    [0074] Turning now to the Figures, it is shown in them, in Figs. 1 - 3, a configuration of the present packaging embodiments generically indicated at 20. As generically shown, the packaging 20 can be formed of a film substrate (laminate) 22 laminated to a closure layer substrate (label 24) by a pressure sensitive adhesive PSA 32. We note that, although the packaging is described as a PSA adhesive, other types of adhesives can be used, including a part having a permanent adhesive, and the like and combinations thereof. Package 20 may, for illustrative purposes, have two panels (front panel 64, rear panel 66) and peripheral edge parts, such as double-sided seals (26, an extreme seal 28 and a folded film edge 34). In any event, the side seals and folded film edges form peripheral sealed edges. Film 22 may have a groove line (tear line / weakness line) 38 covered by label 24. Label 24 may have a non-adhesive area 36 formed by a variety of methods described here, to facilitate easy opening for expose product 30.
    [0075] The illustrated flexible flow winding embodiments described here generally include a package designed for multiple meals, formed from a grooved flexible material having two (2) side seals and an extreme seal that form the front panel 64 and the panel rear 66. The seals, which can be airtight (or substantially airtight), seal and can be formed by heat sealing, cold sealing, sonic waves, low-grip sealing and combinations thereof, and are preferably non-peelable. The embodiments can provide not only a light barrier, but can also be configured to provide a gas and moisture barrier for up to 24 months before opening. In some embodiments, such as for chewing gum, the packaging can be configured to keep the product fresh for six to 18 months. Given the flexibility of the laminated film, the packaging format is typically influenced by the contents of the product.
    [0076] The package 20 can be formed by joining opposite sides of the film 22 to form the extreme seal 28. In one approach, the package can be formed by a laminate of film label to allow the parallel formation of packages in multiple lanes (eg, two avenues shown in Fig. 45). The film 22 may have a sealing layer on the inner surface of the film, described below. Side seals 26 can also be provided.
    [0077] Embodiments of alternative packaging can be found in Figs. 29 - 30, 31 - 32, 46 - 47 and 54 - 55. In Figs. 29 - 30, a continuous label 24i can be applied along the longitudinal axis of the front panel 64 over a groove line that is oriented towards the extreme seal 28. In one approach, a groove line 38i has a 'hook' configuration -J 'to reduce tear propagation beyond the groove line. The 'J-hook' can be configured to be placed on or near the inner edge of the extreme seal 28. An additional seal can be applied to the fastening label 24i in the region of the end seal 28 (not shown). For example, additional thermal sealer could be applied to seal the tag 24i in the region of the end seal 28, to make it a non-peelable seal.
    [0078] In Figs. 31 - 32 and 54 -55, a flow-wrap package is shown having a fin seal 73. Optionally, an overlap seal could also be used. Again, a label (which can be continuously or separately arranged on the package) can be continuously applied to the longitudinal axis of the panel having the fin seal (or overlap). Alternatively, the label can be applied continuously to the longitudinal axis of the packaging panel without having a fin seal (or overlap). It is again noted that this embodiment and others described here can be applied to any number of packaging and product configurations.
    [0079] As used here, the continuous application of the label, flexible film or adhesives indicates that their application is uninterrupted along the direction of application. In addition, as used herein, a continuous packaging label can extend the entire length or width of the package and is uninterrupted from one edge of the package to an opposite edge. Alternatively, a separate packaging label is one that covers only part of the packaging width and length and does not extend across the entire packaging width or length. In one approach, a continuous label laminate can be continuously applied to a film laminate, which is then formed into packages having a continuous packaging label. In another approach, a separate packaging label can be applied in a continuous application, so that a continuous label laminate is applied to a film laminate. In such a configuration, a label cut, such as a top cut, can be formed on the continuously applied label laminate. The label cut can define a shaped packaging label and the portion of the continuously applied label, which does not form the shaped packaging label (i.e., the unused label matrix), can be removed from the flexible film laminate. Thus, a portion of the continuously applied label laminate can be removed from the film laminate to thereby form separate packaging labels arranged on the film laminate.
    [0080] Figs. 35 - 36 illustrate a third alternative embodiment of a package of the present embodiments, having all four sides sealed. This includes the addition of a second end seal 84.
    [0081] Figs. 46-47 illustrate another approach to packaging the present embodiments having three seals and a distinct label extending over a part of the fold line.
    [0082] In the present embodiments, the film 22 can be formed from a variety of materials and laminations. The film 22 can be a laminate with several belts, such as a layer of polyethylene terephthalate (PET) and a layer of oriented polypropylene (OPP), or optionally be a single layer polymer. Examples of a single-layer polymer can include polypropylene, polyethylene, polylactic acid (PLA), polyester and the like. A PET layer can be flexible to semi-rigid, depending on its thickness. PET can be used because it is very light, strong and can have high transparency when desired for packaging specifications. It can also be useful as an oxygen (gas) and moisture barrier. An OPP layer can add strength and be another barrier to permeability. The lamination components can be joined by adhesives or by extruded polymers. The film 22 may be a flexible laminar material rolled or formed as a pattern and made of laminated or coextruded film structures. Generally, film 22 can be in the range of about 30 to 500 gauge. In embodiments employing a polyester film, the film must be at least 48 gauge.
    [0083] The thickness of the film can also be a function of the desired barrier for gas, moisture and light, level of the desired structural integrity and the desired depth of the groove line (described below). In addition, the film gauge (and label gauge) can be selected based on the desired packaging rigidity. In embodiments where the label extends beyond a fold line to a rear panel, the label may provide more packaging rigidity.
    [0084] The film 22 may be a heat sealable copolymer. In some embodiments, the heat sealable polymer forms a seal between 50 and 300 degrees Celsius. The film 22 can also be a pressure sealing film. In some embodiments, this pressure sealing film forms a seal between a pressure of about 0.7 and 7.0 kg / cm and, preferably, about 5.6 kg / cm.
    [0085] The film 22 can optionally also have additional layers of laminate. An optional sealing layer (see sealing 26, Fig. 5; sealing 94 in Figs. 43 and 44) can be laminated to facilitate the formation of seals that include product during packaging. As such, the sealing layer would be oriented on the film surface directed into the package and can be applied as an extrusion laminate or as a film adhesion laminate 22. The sealing layer can be a variety of polymeric sealants, such as as a heat-activated polymeric sealant layer such as polyethylene, ethylene vinyl acetate (EVA), ionomer (such as one sold under the trade name SURLYN by DuPont), catalyst polymer by matalicin and the like. Particulate components can also be added to the sealing layer, such as organo-clay, anti-block, a liquid clay component such as erucamide, polybutylene and the like. The sealing layer 26 and 94 can be about 20 microns thick. Cold sealant and pressure sealant are also possible within the scope of the presented embodiments. We observed that food-grade sealants would be used when food products are anticipated. The sealant layer 26 could cover the entire inner surface of the film 22 or just where the seals are needed (as shown in Fig. 5). Optionally, where a sealant layer is not provided, sufficient heat can be applied to the polymer to melt / melt the film together to form a seal.
    [0086] Hardeners can be added to film compositions 22, such as a polyamide polymer (e.g., nylon) and fibrous compositions, such as paper. The hardeners can be added as a component of the extruded film or as a separate layer. Nylon can be added as a laminated layer maintained on the film structure by an adhesive, optionally with film attached to each side of the nylon (i.e., bonding layer). For illustrative purposes, the nylon layer can be about 8 percent of the film thickness or about 0.004 mm.
    [0087] Optional film layers can also include paint layers (not shown). For example, a specific laminate can include ink and a primer arranged between a PET and an OPP layer. Metallized layers, paper and cardboard layers and various other combinations of laminates are also possible within the preferred embodiments.
    [0088] As shown, the film 22 can be formed into a pouch or glove packaging having square edges, although the embodiments can also be practiced in various curvilinear shapes, such as rectilinear (gloves) or oval packages, depending on the product desired content contained therein.
    [0089] Now returning to Fig. 5, a cross section of a possible film laminate 22 of the present embodiments is shown to include a layer of polyethylene terephthalate (PET) 44, a layer of polyethylene (PE) 46 and a layer of optional metallized oriented polypropylene (MET OPP) 48. The PET 44 layer can be flexible to semi-rigid, depending on its thickness. PET is preferred because it is very light and strong and has high transparency. It can be useful as an oxygen (gas) and moisture barrier. The PE 46 layer can add more strength and be another barrier to permeability. In the illustrated embodiment, MET OPP 48 can provide additional thermal insulation, film opacity and the like. Preferably, the lamination components are joined by adhesives or by extrusions.
    [0090] A laminate embodiment can be as follows: about 48 gauge of PET / paint / about 70 gauge of LDPE (or about 10 pounds) / about 70 gauge of MET OPP. LDPE is a low density polyethylene. Other film and label lamination compositions are possible within the scope of these embodiments, as long as the integrity of the package and label can be maintained after repeated use. For example, each of the PET, LDPE and MET OPP components can be in the range of about 5 to 500 gauge. Multiple variations of PET, PE, BOPP (biaxially oriented polypropylene) and MET OPP are also contemplated for the configurations presented here.
    [0091] In an alternative embodiment, the film configurations may include a printed overlay film of about 48 - 230 gauge (preferably about 118 gauge) of transparent OPP film that is printed reverse and adhesively bonded to a film of white OPP packaging 48 - 230 gauge (preferably about 118 gauge).
    [0092] In another approach, as shown in Fig. 43, film 22i can have 6 layers. In this approach, the tag 24i is attached to a polyester layer 90 by a PSA 32i. The polyester layer 90 can be printed on either side and includes a transparent polyester, OPP, or even biaxially oriented nylon. As shown in this approach, layer 90 is configured to be oriented on the outside / outside of the formed package. Layer 90 can be in the range of 18 to 120 gauge, although preferably in the range of about 20 to 50 gauge. The layers of paint and even white LDPE can be applied to layer 90 on the oriented surface inside the package.
    [0093] Under the polyester layer 90 there may be an additional adhesive layer 92 to bond an optional hardening layer 91, such as a fiber substrate (eg paper or even cardboard layer). The hardening layer 91 can be paper in the range of about 18 to 80 grams per square meter (gsm), but preferably in the range of about 35 gsm to about 45 gsm, and most preferably about 40 gsm. The adhesive layer 92 can optionally be an extrusion or olefin or the like. Under the polyester layer 90 (or optional hardening layer 91) a second adhesive layer 92 can be laid or even polyolefin in embodiments employing extrusion lamination. In the second adhesive layer of approach 92, layer 90 (or 91) is bonded to a barrier layer 93. The barrier layer 93 can be a metallic blanket of about 12 to 40 gauge, although preferably about 29 gauge. The barrier layer 93 can also be a layer of metallized oriented polypropylene (MET OPP). Under the sheet metal layer 93, a sealing layer 94 can be applied, which can include a polyolefin. The sealing layer 94 allows the bonding of opposing skin layers to form, for example, the extreme and side seals of the package.
    [0094] Fig. 44 illustrates another approach to lamination of skin substrate indicated as 22ii. In this approach, the tag 24i is attached to a release layer 89 by a PSA 32i. The release layer 89 is attached to a paper layer 91. The release layer 89 can be a silicone top coat, or varnish coating, as used to cover a surface print. In embodiments in which silicone is used, the thickness of layer 89 can be in the range of about 20 to about 50 gauge. Where a varnish is used, such as a printing varnish, the thickness of layer 89 can be in the range of about 1 gauge to about 15 gauge. Release layer 89 facilitates smooth release of PSA from a packaging surface through multiple uses. Paper 91 can be attached to a barrier layer 93 by an adhesive layer 92. The sealing layer 94, which is directed towards the film surface towards the inside of the package, can be attached to the other side of barrier layer 93 as a coextruded layer or like an extruded layer. In this approach, the strips of laminated layers can be comparable to those described for Fig. 43.
    [0095] The present embodiments can also provide a line of weakness in the film substrate to define a packaging flap (e.g., Figs. 9 - 27) or packaging opening (e.g., Figs. 15 , 49 - 53) which is available under the label 24. Details of the integrity of the packaging (eg Figs. 11, 17, 21, 24 - 27) can also be included. Preferably, the grooved line 38 only passes through a part of the film, so as not to affect the desired barrier properties (e.g., gas or moisture) of the package. Thus, tag 24 would not need to provide the initial airtight barrier, although, optionally, it can. For example, by opening Fig. 15, the label could provide the initial barrier. The optional barrier properties for label 24 could result from the inherent characteristic of the label material, or through a barrier layer added to label 24. We note that, even in embodiments where groove 38 can affect the barrier qualities of film 22 , the application of label 24 can compensate for the compromised barrier created by the groove.
    [0096] The groove of the film is not limited to a gauge of material or composition. Thus, the resulting product is cost effective. We note again that the term 'groove' as used here can be used to describe the effect of any type of process, such as by mechanical, laser or other processes that provide a line of weakness to compromise the integrity of the skin substrate. The groove 38 can be cut through the outer or inner surface of the film 22, but preferably on the inner surface. It is also noted that the groove does not need to be continuous to form a line of weakness. In some embodiments, a series of perforations of various sizes can be grooved within the film 22.
    [0097] The preferred tear resistance of groove line 38 should be at least weaker than the adhesive strength of PSA 32 (Figs. 1 and 5) of label 24, to allow film 22 to peel back with the label (Fig. 1). For illustrative purposes only, in one embodiment, the PSA 32 can be configured to have an opening force (separation) of about 300 - 400 grams / inch.2 and a closing force (adhesion) of about 200 - 300 g / in2. We note, however, that other opening and closing force ranges are contemplated for these embodiments.
    [0098] Groove line 38 can be arched, as shown in Figs. 1 - 4, but can be configured in many embodiments, depending on the anticipated product and how much product is desired to be exposed when the package is opened. For example, Figs. 9 - 27 show several different groove configurations 38. Fig. 9 illustrates an arched groove line with an outwardly oriented J-hook configuration. Fig. 10 illustrates an arched groove line with a smile. Fig. 11 illustrates an arched groove line with details of packaging integrity (PFs) out of thin air. Fig. 12 illustrates a trapezoidal groove line with rounded corners. Fig. 13 illustrates a box-shaped groove line with rounded corners. Fig. 14 illustrates an alternative general arch with a groove line with rounded edges. Fig. 15 illustrates a generally straight cut groove line separating the film. In this example, the groove line can be positioned at or near the top fold line, and therefore, in this embodiment, the peripheral packaging edge is not sealed. This cut is not limited to within the sealing limit, but it can be through the entire edge of the package and can be grooved to separate the film before opening. This type of configuration can be used for product containment. Many other types of configurations are possible. Fig. 16 illustrates a wide groove line with straight sides having a displaced distal tongue end. Fig. 17 illustrates an arched groove line with a prong of dug PIFs. Fig. 18 illustrates an arched groove line having an inwardly oriented 'J' hook. Fig. 19 illustrates a 'V' shaped groove line. Fig. 20 illustrates an arched and perforated groove line configuration. Fig. 21 shows an arched groove line with a pair of PIFs within the arch. Fig. 22 illustrates a 'deep' arched groove line having inwardly oriented 'J' hooks. Fig. 23 illustrates an alternative 'V' generally shaped groove line configuration. Fig. 24 illustrates an alternative arched groove line with an alternative PIF within the arc. Fig. 25 illustrates an alternative arched groove line with an alternating pair of PIFs within the arc. Fig. 26 illustrates an alternative arched groove line with an alternative PIF within the arc groove line having a tear propagation limiter 75. And Fig. 27 illustrates an alternative arched groove line with an alternating pair of PIFs inside. of the arc groove line configuration having a tear propagation limiter 75.
    [0099] Some embodiments described above attempt to consign a tendency that the exposed groove lines tend to propagate a continuous tear beyond the end of the groove line. Fig. 9 has a 'J-hook' 56 extending distally, while Figs. 18 and 22 have a ‘J1-hook extending medium 56 to stop the tear spread. Alternatively, Fig. 10 has a ‘smile’ 58 to provide for this tear spread reduction.
    [0100] Some embodiments have a packaging integrity detail (PIF). For example, Fig. 11 provides a tongue or two tongues outside the arc that form a break in the groove line. The tabs are separated at the initial opening of the package and will not overlap when the package is re-closed. An alternative PIF configuration 70 of Fig. 21 is directed inwardly from the arc. A second alternative PIF 74 is illustrated in Figs. 24 - 27. These can be formed with additional details, such as a 'T-hook' or 'J-hook' at the end to stop or reduce the spread of tearing. Yet another PIF configuration is shown in Fig. 17. This PIF includes a pair of grooved points / pits in the film in the sealing area. Points 72 are removed from their original position at the initial opening of the package. In re-closing, the points do not align perfectly in their original position and, therefore, indicate that the package was previously opened.
    [0101] The illustrated embodiments provide a label substrate 24 (continuous or separate) laminated to the film 22 by a PSA 32 (Fig. 5). The label, as described here, can include any film or laminate configurations, which can be applied to the packaging film to function as a resealable tab. As shown in Figs. 1 - 3, the label 24 has a peelable adhesive part 32 and a non-adhesive region 36 to serve as a tongue. The tag 24 is preferably configured to cover at least the groove line 38. The peeling tongue 36 can be formed by removal, covering (see Fig. 1) or damping / deactivating PSA 32. For example, a coating process (such as such as paint or varnish) can be used to cushion the adhesive to area 36 of label 24. Alternatively, a separate lamination can be added, such as a paper liner, to provide non-adhesive part 36 of label 24. In in other alternative embodiments, the non-adhesive edge of the label can be a part of the label folded over itself, so that the PSA surfaces are adjacent to each other (see Fig. 34). In another approach, the label can be coated by zone with PSA, which excludes the part of the label to be used as the non-adhesive area 36.
    [0102] Label 24 can be transparent (as shown), opaque or optionally printed. In a preferred embodiment, the applied label 24 can be a unlined label continuously applied longitudinally to the flow of the film. Thus, the waste of the label liner can be eliminated and, since the label is continuous, and the step of precise alignment of the label on each unit of the product is not necessary. We note, however, that the tag 24 can be generically described as any film with an adhesive cover and fall within the scope of the embodiments shown. We also note that the lined labels can also be used within the scope of the presented embodiments.
    [0103] Unlined labels can be a face support for label 24, having a PSA coating on one side, but can be rolled up on a spool without a liner. This can be accomplished by a release liner applied to the side opposite the adhesive liner. The face supports can include paper, film, plastic, fabric, foil, direct thermal and the like. Unlined labels are available with removable and repositionable stickers. Alternatively, a flexible film covered with adhesive can be used for label 24.
    [0104] As illustrated, label 24 can be applied to film 22 as a continuous label with a PSA. It is noted, however, that, in alternative embodiments, the label may be a separately applied label, a separate label formed by top cut of a continuously applied layer, or provided as an interstitial layer in a laminated film.
    [0105] In the present embodiments, the tag 24 can be laminated to the film 22 by PSA 32. As mentioned above, the peeling resistance between the surface of the pack 20 and the tag 24 must be greater than the force required to separate the film along the groove line 38. As such, label 24 is peelable with respect to the surface of package 20, including parts of label 24 exposed to the sealing process of side seals 26 (see below).
    [0106] An exemplary label embodiment for packaging configurations described here can be about 50 to 500 gauge and, preferably, oriented polyester or polypropylene (OPP) of about 100 to 250 gauge. Other types of semi-rigid polymer, such as PET, can also be used. OPP embodiments can include biaxially oriented polypropylene (BOPP). The label may be opaque, but preferably transparent. A specific embodiment can be about 200 gauge (2 mil) transparent BOPP film, having a 10 - 200 PSA coating (and preferably about 100 gauge (1 mil)), which can optionally be covered for shipment with polyester coating of about 100 gauge (1 mil) (greater than 18 gauge). The optional liner can be removed before being applied to the packaging film. The liner can be used as the buffering agent for the adhesive-free zone.
    [0107] PET can be advantageous if thermal resistance in creating a non-peelable seal is desired. Preferably, PSA is applied directly to the film, but can be applied to paint or any other coating on the film. The PSA must remain attached to the label 24, even after repeated openings and closings. PSA 32 is preferably neutral or non-reactive to the product and can be configured to provide a resealable seal, even under refrigerated conditions (ie PSA is operable in a temperature range of about -10 to 90 degrees Celsius). Tag 24 can be applied to cover groove line 38, while leaving a sufficient marginal region of tag 24 to expose enough PSA 36 to substantially close the opening of the package defined by groove line 38 (see, eg, Fig . 1).
    [0108] Figs. 28, 37 - 38, 42, 46 - 47, 54 - 55 illustrate embodiments in which the label is cut off at the top to form various tongue shapes or even to form separate labels. For example, Fig. 28 shows an approach in which the section of a label roll for a packaging embodiment has a grooved shaped label edge 80. As shown, the groove provides a 'shaped shaped label edge / tongue. sine wave ', although it is understood that many types of shaped label edges are possible. In addition, the grooving process can even engrave distinctive marks, such as words (eg, 'LIFT HERE'). Area 82 illustrates the label matrix in addition to the groove line that can be removed before applying the label roll to a film laminate (see Fig. 33 and description here). It is also noted that area 36i illustrates a non-adhesive part of the label. It is also noted that the groove device 322 could also groove the label to allow it to look like a separate label on the film, once the matrix is removed.
    [0109] Another approach to a label is shown as label 24i in Figures 43 and 44. In this approach, label 24i can be applied as a continuous label and then cut at the top with a part of the label matrix removed to supply the finished package. a separate label. As shown in Figs. 43 and 44, the tag 24i can be attached to the film 22i / 22ii by an adhesive 32i. Adhesive 32i can be in the range of about 20 gauge to about 200 gauge in thickness, preferably in the range of about 70 to 90 gauge and, most preferably, about 80 gauge. Adhesive 32i can have a peeling force in the range of about 100 to 1000 grams / 24.4 mm2. The 24i tag can be in the range of 50 to 300 gauge, preferably in the range of about 160 gauge to about 240 gauge. The 24i tag can be formed from oriented polyester, oriented nylon or even paper.
    [0110] During the assembly of the present embodiments, the label 24 (closing layer) can be laminated on the film 22. The end seal 28 and end sheets 26 can be formed when two edges of film 22 are joined and sealed by heated sealing wheels or claws. As discussed above, a sealing layer can be applied to the film to facilitate the type of sealing desired. This internal adhesive can be applied up to 100 percent of the internal surface or only where necessary to provide a seal. The present embodiments require fin sealing or overlap.
    [0111] The method for assembling the packaging 20 of the present embodiments can use thermal seals, cold seals, extrusion and adhesive lamination or coextrusion. The label can be applied continuously along the longitudinal length of the flow film. When products are enveloped and sealed within the flow film, the label laminate / flow film can be cut into individual packages.
    [0112] An exemplary "in-line" method of producing a packaging embodiment is generally shown in Fig. 6 at 68, using a packaging apparatus that positions the film above the product, then packages the film for down to form a fold line 34. An end seal 28 is formed under product 30.
    [0113] As shown, film 22 and label 24 (transparent for this illustration) are joined by their respective feed rollers at 62. We note, however, that the label can be pre-applied to the film to be processed as a single roll feed. The film / label laminate could look like the model 40 feed illustrated in Fig. 4. In this approach, the model is a single model feed in line, although two in-line models can be formed (see, eg, Figs. 37-42). Fig. 4 shows the areas of the front panel 64 and the rear panel 66, fold line 34, cut line 42 and sealing areas 28 and 26. Also as shown, label 24 is oriented to provide approximately equal parts of the label on the front and rear panel. Also, the adhesive part 32 of the label 24 is oriented to cover the juice line 38 and to provide enough exposed adhesive to reseal (or even reseal) the package after opening. Thus, the portion of the label extending beyond the fold line to the rear panel may vary or even stop at the fold line.
    [0114] After film / label lamination, film 12 can be grooved by 50 on the film surface directed into the package, although the top surface could also be grooved. The grooving preferably occurs after the continuous label is applied, but it could be applied before lamination or even supplied on the feed roller. As described above, groove 38 can be formed by laser, mechanical means, such as a knife, and the like.
    [0115] Once grooved, the film is folded around the product and the edges are sealed in the folding device 787. As shown in Fig. 7, the end seal is first formed. We note, however, that, in alternative embodiments, side seals 26 can be formed first and the product inserted before closing the extreme seal 28. The sealing layers can be heated and compressed by the compressed wheels, which activates the heat seal layer on the inner layer. While EVA and the like are used for a sealing layer, heated wheels can be heated between about 85 and 205 degrees Celsius. Again, line speed and film thickness is also a factor in sealing formation as are your desired peelability and tightness. As shown in Figures 1 - 3, the extreme seal 28 is oriented towards the base of the package 20.
    [0116] As shown in the illustration in Fig. 6, once the film has enveloped the product 30, the side seals 26 can be formed by adjacent upper and lower sealing claws 54, which not only can heat seal the sides 26 of the packaging, but they can also cut the film between the side seals, to separate the packages. A knife cut in the sealing jaws 54 can completely separate individual packages (see Fig. 8) or, alternatively, cut or partially puncture the cut between the packages to hold them together in groups (eg, bandolier packaging). We observed that the sealing jaws 54 of Fig. 8 would contact each other during the assembly, however they are shown extended outwards a little for ease of understanding of this embodiment. Alternatively, the film 22 could be pre-perforated and indexed to correspond to the intermediate seal 26. The seals 26 and 28 can optionally be formed from patterns printed on the heated wheels 52 or sealing jaws 54, which could be embossed in relief film when it is pulled through the manufacturing process. We observed that the side seals 26 would provide sealing to the inner surfaces of the film 22, but would not react with the PSA of the label 24. This allows the label 24 to peel even after passing through the sealing jaws 54.
    [0117] An exemplary 'offline' laminating process for developing a two-lane grooved packaging film / label laminate is shown in Fig. 33 and generically indicated at 300 and can be configured to produce a package, such as like the one shown in Fig. 45. As shown, a padded label roll 312 can laminate tag 24 with an optional cushion tag 27 from roll 316 to roll 314. Where a tag liner 33 is present, it can be peeled off the roll 312, then rolled up completely in 310. We note that this detail would not be present where unlined labels are used. Then, the label (single-label or multi-label lamination) is laminated on a roll of film 318 on the nip rolls 320.
    [0118] In addition, the label can optionally be grooved or cut. This label cut can extend completely or almost completely through the thickness of the label. Fig. 33 illustrates that such a label cut can be formed after the label is applied to the film laminate, so that the label is 'cut-at-the-top' or cut by the side of the label away from the film. The label cut or 'top cut' can be used to form a tongue or tab configuration on an optional first groove device 322 (see, eg, Fig. 37 and groove 80 in Fig. 28) . This top cut of the label by device 322 can form the label as a continuous label extending from one edge of the package to another opposite edge of the package (eg, Figs. 28 and 37) or as a distinct label that extends less than the width or length of the package and between the opposite edges of the package (eg, Figs 38 and 46 - 47). The portion of the continuously applied label that does not form a packaging label is the unused label matrix 35 and can be peeled from the lamination on the nip rolls 321 and wound onto a rolled label matrix 324 via a starting roller 323. The film 22 of the resulting laminate with the shaped and aligned tongue, if any, can then be grooved ('cut at the base') in the grooving device 326. The film / label laminate can then be formed on a 328 roll. cutting groove device at the base can also be positioned between the clamping rollers 320 and 321.
    [0119] The pull tab or grip free gripping portion can be formed in numerous additional ways. For example, instead of a second cushioning label 27, a coating or other adhesive cushioning means, such as an ink coating or heat inactivation, can be applied to select areas of the adhesive side of the label by the adhesive deactivation device. 330. In addition, such adhesive deactivation can be tape in a standard applied approach, and in reality, the adhesive application can also be standard applied. The adhesive deactivation process can also include an adhesive coating applicator 338, which can be positioned anywhere along the line before being laminated on film 22 on the pinch rollers 320. The adhesive coating applicator 338 can apply adhesive in the direction of a machine or even applied in the zone, such as in a transversal direction. In the example of an adhesive zone application, the adhesive coating step can be eliminated since the adhesive would only be applied when configured. Therefore, the cushion tag 27 or the adhesive cushion device 330 would be necessary if the adhesive on the tag 24 is applied in pattern in order to have an adhesive free part.
    [0120] In another approach, the roll of film 318 can be pulled from a unwinding station 336. Materials that feed from a rolling station 336 can optionally include film printing on the top surface of film 318 and even reverse printing on the base surface of the film. Printing can be done by flexography, lithography and rotogravure. The unwinding station 336 may include film laminations, application of adhesives, extrusions, hot rolling and the like. The film / laminate structure of roll 318 may include mono to multilayer film.
    [0121] In another approach, the film / label laminating device shown in Fig. 33 may also include a printer 332 for printing the film that feeds from the unwinding station 336. Printing may include surface printing in flexography, lithography and gravure and can be used as a device for coating adhesive surfaces on the film of the film roll 318.
    [0122] In yet another approach, a 334 cutting station can be added to reduce the label stack faces or to cut the label on multiple lanes.
    [0123] Therefore, there are many potential approaches that can be embodied 'offline' (eg, Fig. 33) or 'in-line' (eg, Figs. 6 and 45) to assemble and configure laminations of film / label templates for use in forming flexible packaging. Figs. 37 - 42 provide only a few exemplary approaches.
    [0124] For example, Fig. 37 shows a plan view of a section of a film / label laminate before assembling an exemplary resealable flexible film package, generally indicated at 100. In this approach, the film can form packages in -line of two lanes, which are finally cut during assembly on cut line 76 in the longitudinal direction and cut lines 42 in the transverse direction. These area product placement zones are shown at 31. In this embodiment, the top cut 60 forms an arc shaped peeling tongue that extends beyond the fold line 34, however the label 24 is still continuous in the longitudinal direction. The non-adhesive area 36 can be formed by a second tag 27 or other means, as described here.
    [0125] Fig. 38 illustrates a plan view of a section of another approach to a film / label blanket prior to the assembly of an exemplary resealable flexible film package and is generally indicated at 102. In this approach, the top cut 60 extends the stripping tab arc to the label edge 39. Once the label matrix 35 is removed, the remaining label forms a distinct label 25.
    [0126] Fig. 39 illustrates a plan view of a section of a film 22 before assembling an exemplary resealable flexible film package according to an approach of the present embodiments. In this approach, the base film cut groove line (weakness line) 38 includes PIF 74 details.
    [0127] Fig. 40 illustrates a plan view of a section of a film / label laminate before cutting the top of the label and a groove of the film (base cut) and before assembling a resealable flexible film package. exemplary. As shown, the second tag 27 is laminated between the film 22 and the tag 24. Fig. 41 shows the laminations of Fig. 40 after the tag has been cut off at the top at 66 and the grooved film at 38, but showing the orientation second label 27.
    [0128] Fig. 42 illustrates a plan view of a section of another approach for a film / label laminate before assembling an exemplary resealable flexible film package and is generally indicated at 104. In this approach, the top cut 60 it forms a distinctive label 25i having an arc peeling tab for front panel 64 and tabs 29 extending over fold line 34 to rear panel 66 (see Figs. 46 and 47). Therefore, only a part of the film / label lamination (eg, tabs 29) is folded on the fold line 34. This can allow for easier folding of the package. As shown, label 25i has an edge part 41, generally running parallel to fold line 34. The label edge part 25i 41 can be at or near fold line 34, but is preferably about 1 - 2 mm away from the fold line in dimension 37.
    [0129] Fig. 45 shows a schematic of another exemplary 'in-line' packaging apparatus 69 for assembling a packaging 20 using film / label laminate 104. In this approach, the packaging apparatus 69 positions the film 104 above of the two product lines 30, then roll the film down and wrap the product 30 with the folding device 78i, until the longitudinal edges of the film 34 are at or near the cut line 76. A device 55 can form two extreme seals 28 by two adjacent top and bottom sealing wheels 86 and cut the film along the cut line 76 with knife 85. See also Fig. 48. Knife 85 can completely separate the two packaging lines or, alternatively , partially cut or perforate the cut between the packages to hold them together. We observe that the sealing jaws 86 and knife 85 of Figs. 45 and 48 are in contact during assembly, but are shown to be slightly extended for ease of understanding of this embodiment. Similarly, in device 54, side seals 26 can be formed and individual packages 20 cut, as described for Figs. 6 - 8 above. We have observed that the sequence of steps can be flexible in that the device 54 can also be placed upstream of the device 55.
    [0130] Therefore, when using the configuration of the embodiment of Figs. 1 - 3, the user can grasp the unsealed inner surface 36 of the label 24 with one hand and pull the label away from the package to expose the inside of the package. Typically, the label is pulled towards the folded top edge of the package. When the label peeling tab 36 is peeled backwards upwardly, the film breaks / separates along the groove line 38 to form a packaging opening and expose the PSA 32. As shown in Fig. 1, the film 22 beyond the direction of the label pull remains attached to the label. Preferably, the label 24 is not pulled out of the packaging 20 in use.
    [0131] Although preferred embodiments have been described in detail, variations and modifications can be carried out within the configurations described here.
    权利要求:
    Claims (26)
    [0001]
    1. Refillable flexible film packaging, comprising: a flexible film (22) having a fold forming a folded edge (34), at least two opposite free edges and at least one front panel and one rear panel (64, 66), the opposite free edges being sealed together to form at least a first and a second packaging edge, so that the front and rear panels define an internal space; characterized by the fact that: a groove (38) in the flexible film of the front panel forming a flap that defines an opening when moved towards the folded edge and has a separating force for the flap of the film; and a label (34) extending uninterruptedly from the first packaging edge to the second packaging edge, the label being attached to the film by pressure sensitive adhesive and extending beyond the groove on the front panel to reseal the defined packaging opening by the flap, the pressure sensitive adhesive having a film resistance between the film and the label that is greater than the separating force along the groove, and the label still having a handle free part defining a pull tab (36) .
    [0002]
    2. Packaging according to claim 1, characterized by the fact that the label (24) extends beyond the folded edge (34) on the rear panel (66).
    [0003]
    3. Packaging according to claim 1 or 2, characterized by the fact that the groove (38) is arched.
    [0004]
    4. Packaging according to any one of claims 1 to 3, characterized by the fact that the groove (38) ends in a tear propagation reduction pattern, selected from the list consisting of a “J hook” and a “ smile".
    [0005]
    5. Packaging according to any one of claims 1 to 4, characterized in that the label (24) extends equidistant from the front (64) and rear (66) panels of the folded edge.
    [0006]
    6. Packaging according to any one of claims 1 to 5, characterized in that the groove (38) is a perforation.
    [0007]
    7. Packaging according to any one of claims 1 to 6, characterized in that the film (22) is a laminate of printed overwrap film, comprising a reverse printed OPP transparent film attached to a white OPP packaging film. .
    [0008]
    8. Packaging according to claim 7, characterized in that the transparent OPP film has a measurement in the range of 90 - 230 and the white OPP packaging film has a measurement in the range of 90 - 230 gauge.
    [0009]
    9. Packaging according to claim 7, characterized by the fact that the transparent OPP film is 118 gauge and the white OPP packaging film is 118 gauge.
    [0010]
    10. Packaging according to any one of claims 1 to 9, characterized in that the label is a transparent BOPP film of a measurement in the range of 160 to 240 gauge.
    [0011]
    11. Packaging according to any one of claims 1 to 10, characterized in that the flexible film is a transparent 200 gauge BOPP film.
    [0012]
    Packaging according to any one of claims 1 to 11, characterized in that the non-adhesive edge of the label is a part of the label folded over itself, so that the PSA surfaces are adjacent to each other.
    [0013]
    13. Laminated to form a resealable flexible film package as defined in claim 1, comprising: a continuous flexible film web (22) having a longitudinal axis; characterized by the fact that a continuous label (24) applied to the flexible film along the longitudinal axis with pressure sensitive adhesive; and the blanket and label forming a continuous series of models forming similar packages, the flexible film of each model having a line of weakness forming a flap on the film along the label, to define an opening; wherein the pressure sensitive adhesive has a film resistance between the film and the label that is greater than the separating force along the line of weakness.
    [0014]
    14. Laminate, according to claim 13, characterized by the fact that the line of weakness is continuous in the longitudinal direction along the blanket.
    [0015]
    15. Laminate, according to claim 13, characterized by the fact that the line of weakness is arched.
    [0016]
    16. Laminate, according to claim 13, characterized by the fact that the line of weakness is sinusoidal.
    [0017]
    17. Laminate according to any one of claims 13 to 16, characterized in that a part of the label is free of adhesion, to define a pull tab.
    [0018]
    18. A method for forming a resealable flexible film packaging laminate, as defined in claim 1, comprising the steps of: providing a continuous flexible film mat (22), having a longitudinal axis; characterized by the fact that a continuous label (24) is applied to the flexible film along the longitudinal axis with pressure sensitive adhesive (PSA); and grooving the blanket forming a continuous series of models forming similar packages and forming a flap on the film along the label, to define an opening; the pressure sensitive adhesive has a film resistance between the film and the label that is greater than the separating force along the groove.
    [0019]
    19. Method according to claim 18, characterized in that it further comprises the step of applying a weakening label (24) to the PSA by forming a pull tab (36) before the step of applying the continuous label to the flexible film (22).
    [0020]
    20. Method according to claim 18 or 19, characterized in that it further comprises the step of removing a coating from the label (24), to expose the PSA before the step of applying the continuous label to the flexible film (22) .
    [0021]
    21. Method according to any one of claims 18 to 20, characterized in that it further comprises the steps of grooving the label after the step of applying the continuous label (24) to the flexible film (22); and removing the label groove matrix.
    [0022]
    22. Method according to any one of claims 18 to 21, characterized in that it further comprises the steps of: folding the mat over a product to create a folded edge (34); and forming a seal on the folded edge opposing the free edges of the blanket, to form front (64) and rear (66) panels defining an internal space to contain product.
    [0023]
    23. The method of claim 22, characterized by the fact that it further comprises the step of cutting a seal to define an individual package.
    [0024]
    24. Apparatus for forming the resealable flexible film packaging as defined in claim 1, characterized by the fact that it comprises: a laminating roll for laminating a continuous flexible film web, having a longitudinal axis on a continuous label along the longitudinal axis with pressure sensitive adhesive (PSA); a first device for producing a line of weakness formed on the mat after laminating the flexible film on the label, forming a continuous series of models forming similar packages and the line of weakness forming a flap on the flexible film of each model along the label to define a opening; a folding device, to create a folded edge over a product; and a sealing device to form a seal on the opposite free edges of the folded edge on the blanket, to form front and rear panels defining an internal space for containing product.
    [0025]
    25. Apparatus according to claim 24, characterized by the fact that it further comprises a second grooving device, for grooving the label after lamination on the mat.
    [0026]
    26. Apparatus according to claim 24 or 25, characterized by the fact that it further comprises a cutting device for cutting the seal to form an individual package.
    类似技术:
    公开号 | 公开日 | 专利标题
    BR112013023727B1|2020-12-22|resealable flexible film packaging, laminated to form a resealable flexible film packaging, method for forming a resealable flexible film packaging laminate and apparatus for forming resealable flexible film packaging
    EP2571782B1|2015-09-09|Easy open flexible film packaging products and methods of manufacture
    EP2094580B1|2012-08-22|Reclosable packages for confectionery products
    ES2539577T3|2015-07-02|Flexible film packaging products with easy opening and repeatable closure and manufacturing methods
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    同族专利:
    公开号 | 公开日
    EP2942290A1|2015-11-11|
    EP3109172B1|2018-08-15|
    PL2686251T3|2015-10-30|
    PL3109172T3|2019-03-29|
    WO2012125945A1|2012-09-20|
    CN103517855B|2016-03-16|
    PL2942290T3|2017-03-31|
    US20140079343A1|2014-03-20|
    AU2012228962A1|2013-10-17|
    EP3398862A1|2018-11-07|
    US20170233158A1|2017-08-17|
    ES2546501T3|2015-09-24|
    EP2686251A1|2014-01-22|
    CN103517855A|2014-01-15|
    ES2693145T3|2018-12-07|
    NZ615554A|2015-01-30|
    EP2942290B1|2016-09-14|
    BR112013023727A2|2016-12-13|
    CA2830264A1|2012-09-20|
    JP2014511804A|2014-05-19|
    ES2606328T3|2017-03-23|
    MX2013010605A|2014-07-30|
    EP3109172A1|2016-12-28|
    US9688442B2|2017-06-27|
    EP2686251B1|2015-06-03|
    JP6133793B2|2017-05-24|
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    法律状态:
    2018-12-18| B06F| Objections, documents and/or translations needed after an examination request according art. 34 industrial property law|
    2019-08-13| B06U| Preliminary requirement: requests with searches performed by other patent offices: suspension of the patent application procedure|
    2020-06-02| B06A| Notification to applicant to reply to the report for non-patentability or inadequacy of the application according art. 36 industrial patent law|
    2020-10-06| B09A| Decision: intention to grant|
    2020-12-22| B16A| Patent or certificate of addition of invention granted|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 16/03/2012, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    US201161453872P| true| 2011-03-17|2011-03-17|
    US61/453,872|2011-03-17|
    PCT/US2012/029486|WO2012125945A1|2011-03-17|2012-03-16|Reclosable flexible film packaging products and methods of manufacture|
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