专利摘要:
Packing containers manufactured from plastic-coating paper and having a sealing fin (3) wherein the packing material is joined inside to inside in a sealed union, the material layers so joined together accomodating between them, at least along a part of the sealing fin, a tearing strip (10) inserted in the sealing fin which is sealed to the inner plastic coating of the packing material. To facilitate the pulling off of the tearing strip (10) on opening of the container, the packing material is provided at least within the region of the part of the sealing fin (3) accomodating the strip with a material layer adapted to weaken adherence which is applied between the fibrous layer and the inner plastic coating of the packing material and preferably consists of water glass.
公开号:SU1658815A3
申请号:SU884613213
申请日:1988-12-22
公开日:1991-06-23
发明作者:Чельгаард Том
申请人:Роби Текник Актиеболаг (Фирма);
IPC主号:
专利说明:

The invention relates to packaging in part to packaging containers made from plastic-coated fibrous material, and can be used to package various liquid products.
The purpose of the invention is to improve the usability.
Figure 1 shows the upper part of the tank; in figure 2 - the same, at the opening of the eat / oste in figure 3 - section aa in figure 1 in figure 4 section bb in figure 2.
The packaging container 1 is made of plastic-coated fibrous material, which is folded into a tube and filled with product, and then transversely sealed.
In the sealing rib 2 located across the top end of the shadow container 3, the edge of the packaging material soy
They are repaired with the other inner side to form a hermetic joint. At least in part 4 of the sealing rib 2 between the joined layers of packaging material, a tear tape 5 welded to the inner plastic coating of the packaging material is placed with a pull tab 6 protruding out of the container. At least within part 4 of the sealing 2 at the location of the tearing sheet. J 5 between the fibrous layer 7 and the inner plastic coating 8 of the packaging material there is an additional layer 9 of material weakening the grip adhesion between the fibrous layer 7 and the inner plastic with a coating of 8 dt of magnitude smaller than the strength of the center of the center of explosive tape 5 and a captivity t and mm and digging 8 yr ihoi full-time m; ieris 1
oh el oe
12
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I

with
This layer 9 can consist of any material selected from a range of known materials that have the ability to reduce adhesion between plastic and fibrous layers. For example, dispersion of surlyne, sodium carboxymethylcellulose may be used, but it is preferable to use liquid glass (sodium silicate). A layer of liquid glass works well, containing 4–5 g dry weight per 1 m.
The breaking tape 5 is preferably made of a plastic material with a slight degree of elongation, for example of polyester. In order to facilitate the attachment of the rip-off tape to the plastic coating, it is advisable to coat the polyester tape 10 on both sides with more easily melting outer plastic coatings 11, for example of polyethylene. The rupture tape is secured by the surface fusing of the inner plastic coating of the packaging material with the plastic coating 1 of the rupture tape 5. The outwardly extending pull tab 6 of the rupture tape is provided with a gripper.
When using a packaging container to ensure the opening, first raise the triangular portion of the top wall folded against the side wall. Then, the free end of the bursting tape 5 extending up and back is pulled, the tensile tape 5 is pulled out, and along with it the plastic covering 8 of the packaging material, welded to the outer plastic covering 11 of the breaking tape 5, which easily slides off the supporting fiber layer 7 of the packaging material along part 4 of the sealing ribs with a weakened adhesion, and thereby open the discharge opening.
权利要求:
Claims (5)
[1]
1. Packing capacity made
made of plastic-coated fibrous material and having a sealing rib located across the upper end wall, in which the edges of the packaging material are joined to one another to form an airtight joint, and at least part of the sealing rib between the joined layers of the packaging
material placed welded to the inner plastic coating of the packaging material, a tear tape with an extractor protruding outward from the container, characterized in that
In order to improve ease of use, the packaging material has at least a portion of the sealing rib, including a tear tape, located between the fibrous layer and
an inner plastic coating an additional layer of material weakening the adhesion force between the fibrous layer and the plastic coating to a value that is less than the adhesion force between the tearing tape and the plastic coating of the packaging material,
[2]
2. A container according to claim 1, characterized in that the tensile tape is made of polyester coated on both sides with plastic and welded to the inner plastic coating of the packaging material by surface fusing the latter with a plastic coating of the breaking tape.
[3]
3. Capacity according to claims 1 and 2, characterized in that. that the outwardly extending pull tab of the breaking tape is provided with a gripping ring.
[4]
4. A container according to claims 1 to 3, characterized in that liquid glass is used as the material of the additional layer, which weakens the adhesion force between the fibrous layer and the plastic coating.
0
[5]
5. The container according to claim 4, wherein the layer of liquid glass contains 4-5 g of dry weight per meter.
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S188S91
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同族专利:
公开号 | 公开日
MX170364B|1993-08-18|
BR8806850A|1989-08-29|
AU611242B2|1991-06-06|
CA1325413C|1993-12-21|
FI93713B|1995-02-15|
DK170836B1|1996-02-05|
NO173269B|1993-08-16|
AT80846T|1992-10-15|
ZA889595B|1989-09-27|
DE3874870T2|1993-02-04|
ES2034138T3|1993-04-01|
EP0321850A1|1989-06-28|
NO173269C|1993-11-24|
NO885672L|1989-06-26|
DK707188D0|1988-12-20|
AU2734388A|1989-06-29|
NO885672D0|1988-12-21|
SE459916B|1989-08-21|
JPH02191147A|1990-07-27|
US4884695A|1989-12-05|
SE8705153L|1989-06-24|
AR246907A1|1994-10-31|
EP0321850B1|1992-09-23|
SE8705153D0|1987-12-23|
DK707188A|1989-06-24|
DE3874870D1|1992-10-29|
FI93713C|1995-05-26|
FI885909A|1989-06-24|
引用文献:
公开号 | 申请日 | 公开日 | 申请人 | 专利标题

CH549505A|1972-03-14|1974-05-31|Tetra Pak Dev|PACKAGING CONTAINER, PROCESS FOR ITS MANUFACTURING AND PACKAGING MATERIAL WEB FOR CARRYING OUT THIS PROCESS.|
US3827625A|1972-06-21|1974-08-06|Reclosable Package Corp|Reclosable package and controlled release paper for use therein|
US4055671A|1972-10-05|1977-10-25|Mahaffy & Harder Engineering Company|Hermetically sealed package|
DE2801404C2|1978-01-13|1983-11-24|Altstädter Verpackungs-Vertriebsgesellschaft mbH, 6102 Pfungstadt|Liquid pack with a pouring spout that can be opened by a tear strip|
SE451064B|1981-12-30|1987-08-31|Tetra Pak Int|DEVICE FOR PACKAGING CONTAINERS|
US4488647A|1983-07-18|1984-12-18|Paramount Packaging Corporation|Flexible package with easy opening peel seal|
GB2189772B|1986-04-28|1989-12-13|Tetra Pak Int|A liquid pack and method of manufacture thereof|
SE456008B|1986-12-11|1988-08-29|Tetra Pak Ab|PACKAGING CONTAINER WITH OPENABLE, SEAL WEAKEN|
US4762234A|1987-04-10|1988-08-09|Minnesota Mining And Manufacturing Company|Gable-top container|
US4792048A|1987-04-10|1988-12-20|Minnesota Mining And Manufacturing Company|Gable-top container|
SE459916B|1987-12-23|1989-08-21|Roby Teknik Ab|PACKAGING CONTAINER OPENING DEVICE|EP0393025B1|1987-12-11|1992-04-01|Schouw Packing A/S|A packaging container, in particular for dry, tricklable products|
SE459916B|1987-12-23|1989-08-21|Roby Teknik Ab|PACKAGING CONTAINER OPENING DEVICE|
SE466800B|1990-08-14|1992-04-06|Tetra Pak Holdings Sa|WITH OPENING OF BRAKE TYPE FITTED PACKAGING CONTAINER|
US5228616A|1990-08-14|1993-07-20|Tetra Alfa Holdings S.A.|Package container provided with a strip-type opening arrangement|
SE508001C2|1992-07-02|1998-08-10|Tetra Laval Holdings & Finance|Opening device for packaging containers|
US5392589A|1993-09-03|1995-02-28|Jebco Packaging Systems, Inc.|Method of constructing a container with unitary spout pull tab|
US6345759B1|2001-02-02|2002-02-12|Tetra Laval Holdings & Finance, Sa|Gable top carton with enlarged pour spout opening|
法律状态:
优先权:
申请号 | 申请日 | 专利标题
SE8705153A|SE459916B|1987-12-23|1987-12-23|PACKAGING CONTAINER OPENING DEVICE|
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