CN219667665U - Pressure-sensitive packaging film capable of being repeatedly opened - Google Patents
Pressure-sensitive packaging film capable of being repeatedly opened Download PDFInfo
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- CN219667665U CN219667665U CN202223578251.7U CN202223578251U CN219667665U CN 219667665 U CN219667665 U CN 219667665U CN 202223578251 U CN202223578251 U CN 202223578251U CN 219667665 U CN219667665 U CN 219667665U
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- layer
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- packaging film
- packaging
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- 239000012785 packaging film Substances 0.000 title claims abstract description 33
- 229920006280 packaging film Polymers 0.000 title claims abstract description 33
- 239000010410 layer Substances 0.000 claims abstract description 116
- 239000002131 composite material Substances 0.000 claims abstract description 30
- 239000002346 layers by function Substances 0.000 claims abstract description 19
- 239000012793 heat-sealing layer Substances 0.000 claims abstract description 15
- 239000011347 resin Substances 0.000 claims abstract description 4
- 229920005989 resin Polymers 0.000 claims abstract description 4
- 239000012790 adhesive layer Substances 0.000 claims description 20
- 230000004888 barrier function Effects 0.000 claims description 16
- 229920000728 polyester Polymers 0.000 claims description 14
- 239000012528 membrane Substances 0.000 claims description 12
- -1 polyethylene Polymers 0.000 claims description 10
- 239000003292 glue Substances 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 7
- 239000004698 Polyethylene Substances 0.000 claims description 6
- 229920000573 polyethylene Polymers 0.000 claims description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 5
- 229910052782 aluminium Inorganic materials 0.000 claims description 5
- 239000011888 foil Substances 0.000 claims description 4
- 239000004712 Metallocene polyethylene (PE-MC) Substances 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 229920003023 plastic Polymers 0.000 claims description 3
- 229920000139 polyethylene terephthalate Polymers 0.000 claims description 3
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 3
- 238000004806 packaging method and process Methods 0.000 abstract description 22
- 238000007789 sealing Methods 0.000 abstract description 11
- 238000009449 lightweight packaging Methods 0.000 abstract description 6
- 230000003373 anti-fouling effect Effects 0.000 description 6
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Laminated Bodies (AREA)
Abstract
The utility model belongs to the technical field of packaging films, and particularly relates to a pressure-sensitive packaging film capable of being repeatedly opened. The utility model provides a repeatable opening pressure-sensitive packaging film, which aims at solving the problem that a repeatable opening packaging bag in the prior art does not conform to the light-weight packaging principle advocated at present, and comprises a film main body, wherein one side of the film main body is fixedly connected with a composite functional layer, the composite functional layer comprises a pressure-sensitive layer made of pressure-sensitive resin, and a heat-sealing layer covers the surface of the pressure-sensitive layer. The utility model improves the structure of the packaging film, namely, a layer of pressure sensitive layer is arranged in the heat sealing layer, the heat sealing layer forms a packaging bag through heat sealing, when the packaging bag is opened, the heat sealing layer is torn to expose the pressure sensitive layer, and the pressure sensitive layer can realize the adhesion sealing again through pressing. Therefore, the repeated opening of the packaging bag is realized without the need of arranging a structure on the packaging bag in a targeted manner, the use of redundant parts such as easy-to-open stickers, zippers and the like is avoided, and meanwhile, the principle of light-weight packaging is also met.
Description
Technical Field
The utility model belongs to the technical field of packaging films, and particularly relates to a pressure-sensitive packaging film capable of being repeatedly opened.
Background
Part of the packaging bags have the requirement of repeated opening and closing when in use, such as paper towel bags and the like. In the prior art, however, a special structure is arranged on the packaging bag to realize repeated opening and closing, for example, an easy-to-open label or a zipper is arranged. Such an approach results in a complicated packaging, which does not follow the currently advocated principle of lightweight packaging.
For example, chinese patent application discloses a high barrier re-openable packaging film bag [ application number: 201820945084.X ], the utility model patent includes the wrapping bag that encloses with the film and closes, is equipped with the opening on the wrapping bag, still includes the rupture membrane that bonds on the wrapping bag surface, still includes the antifouling membrane that sets up between wrapping bag and rupture membrane, the antifouling membrane has part and wrapping bag fixed connection, the antifouling membrane of rupture membrane can cover completely, the antifouling membrane can cover the opening completely, and antifouling membrane bottom and wrapping bag fixed connection.
The utility model realizes repeated opening and sealing of the packaging bag by pertinently arranging the unsealing film and the anti-fouling film structure, so the problem that the packaging is complicated and does not accord with the light-weight packaging principle advocated at present still exists.
Disclosure of Invention
The utility model aims to solve the problems and provide a repeatable opening pressure-sensitive packaging film which can avoid the use of easy-to-open stickers and zippers.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
the utility model provides a can repeatedly open pressure-sensitive packaging film, includes the membrane main part, one side fixedly connected with combined type functional layer of membrane main part, combined type functional layer includes the pressure-sensitive layer of being made by pressure-sensitive resin, and the heat-seal layer covers on the pressure-sensitive layer surface.
In the above-described pressure-sensitive packaging film, the heat-seal layer is made of a polyethylene material, and the pressure-sensitive layer is made of a metallocene polyethylene.
In the above-mentioned pressure-sensitive packaging film, the heat-sealing layer has a thickness of within micrometers.
In the repeatable opening pressure-sensitive packaging film, the composite functional layer further comprises a composite layer, a bonding layer and an intermediate layer in sequence, wherein the composite layer, the bonding layer and the intermediate layer are made of polyethylene materials, the composite layer is fixedly connected with the film main body, and the intermediate layer is fixedly connected with the pressure-sensitive layer.
In the above-described reclosable pressure-sensitive packaging film, the total thickness of the composite functional layer is not more than 10 μm.
In the above pressure-sensitive packaging film capable of being repeatedly opened, the film body comprises a polyester layer and a barrier layer, wherein the polyester layer and the barrier layer are bonded through a first bonding layer, and the barrier layer and the composite functional layer are bonded through a second bonding layer.
In the above pressure-sensitive packaging film, the polyester layer is made of polyethylene terephthalate, and the barrier layer is aluminum foil.
In the above pressure-sensitive packaging film capable of being repeatedly opened, the first adhesive layer is aluminum-plastic composite adhesive.
In the above pressure-sensitive packaging film, the second adhesive layer is solvent-free glue.
In the above-mentioned pressure-sensitive packaging film, a printing layer for displaying patterns is further provided between the polyester layer and the first adhesive layer.
Compared with the prior art, the utility model has the advantages that:
the utility model improves the structure of the packaging film, namely, a layer of pressure sensitive layer is arranged in the heat sealing layer, the heat sealing layer forms a packaging bag through heat sealing, when the packaging bag is opened, the heat sealing layer is torn to expose the pressure sensitive layer, and the pressure sensitive layer can realize the adhesion sealing again through pressing. Therefore, the repeated opening of the packaging bag is realized without the need of arranging a structure on the packaging bag in a targeted manner, the use of redundant parts such as easy-to-open stickers, zippers and the like is avoided, and meanwhile, the principle of light-weight packaging is also met.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
in the figure: film body 100, polyester layer 101, barrier layer 102, first adhesive layer 103, second adhesive layer 104, print layer 105, composite functional layer 200, pressure sensitive layer 201, heat seal layer 202, composite layer 203, tie layer 204, intermediate layer 205.
Detailed Description
The utility model will be described in further detail with reference to the drawings and the detailed description.
As shown in fig. 1, a pressure-sensitive packaging film capable of being repeatedly opened comprises a film main body 100, wherein a composite functional layer 200 is fixedly connected to one side of the film main body 100, the composite functional layer 200 comprises a pressure-sensitive layer 201 made of pressure-sensitive resin, and a heat-sealing layer 202 covers the surface of the pressure-sensitive layer 201.
When the packaging bag is used, the heat sealing layer 202 forms a sealing of the packaging bag through heat sealing, the pressure sensitive layer 201 is coated below the heat sealing layer 202, the pressure sensitive layer 201 is exposed after the packaging bag is torn, and connection sealing can be realized again through an external force pressing mode. Therefore, the utility model improves the structure of the packaging film, namely, a layer of pressure sensitive layer 201 is arranged in the heat sealing layer 202, the heat sealing layer 202 forms a packaging bag through heat sealing, when the packaging bag is opened, the heat sealing layer 202 is torn to expose the pressure sensitive layer 201, and the pressure sensitive layer 201 can realize the adhesion sealing again through pressing. Therefore, the repeated opening of the packaging bag is realized without the need of arranging a structure on the packaging bag in a targeted manner, the use of redundant parts such as easy-to-open stickers, zippers and the like is avoided, and meanwhile, the principle of light-weight packaging is also met.
Preferably, the heat seal layer 202 is made of polyethylene material and the pressure sensitive layer 201 is made of metallocene polyethylene. The main materials of the two are the same, the packaging film has single component, and the packaging bag is convenient to recycle.
Preferably, the thickness of the heat seal layer 202 is within 10 microns. Further preferably, the heat-seal layer 202 has a thickness of 10 microns and the pressure-sensitive layer 201 also has a thickness of 10 microns. With such a thickness, the seal strength of the package after heat sealing by the heat seal layer 202 is about 8 to 10N, and the seal strength of the package after opening by secondary adhesion by the pressure sensitive layer 201 is about 2 to 3N. The number of times of repeatable opening is related to the thickness of the pressure sensitive layer 201, at which the number of times of repeatable opening is about 20 times.
As shown in fig. 1, the composite functional layer 200 further includes a composite layer 203, an adhesive layer 204, and an intermediate layer 205 in sequence, where the composite layer 203, the adhesive layer 204, and the intermediate layer 205 are made of polyethylene materials, the composite layer 203 is fixedly connected with the film main body 100, and the intermediate layer 205 is fixedly connected with the pressure sensitive layer 201. Wherein the thickness of the composite layer 203 is 15 micrometers, the thickness of the adhesive layer 204 is 10 micrometers, and the thickness of the intermediate layer 205 is 15 micrometers, so that the total thickness of the composite functional layer 200 is about 60 micrometers.
As shown in fig. 1, the film body 100 includes a polyester layer 101 and a barrier layer 102, the polyester layer 101 and the barrier layer 102 are bonded by a first adhesive layer 103, and the barrier layer 102 and the composite functional layer 200 are bonded by a second adhesive layer 104. Wherein the polyester layer 101 is made of polyethylene terephthalate, and the barrier layer 102 is aluminum foil.
The first adhesive layer 103 and the second adhesive layer 104 only need to adhere the upper layer and the lower layer, and prevent separation between the layers. However, in order to further ensure the adhesion effect, since the barrier layer 102 is an aluminum foil, the first adhesive layer 103 may be an aluminum-plastic composite adhesive, for example, polyurethane glue, which has the advantages of strong adhesion, greater than or equal to 3N of interlayer peel strength, slow decay, and the like.
The second adhesive layer 104 is preferably a solvent-free glue, and the use of ethyl acetate is reduced by using the solvent-free glue, so that the environmental protection concept of emission reduction is achieved. The utility model adopts a double-component solvent-free glue 518 which is produced by Boston gum (Shanghai) management Co., ltd, and has the model of HERBERTS-2K-LF 518/H108.
As shown in fig. 1, a printing layer 105 is further disposed between the polyester layer 101 and the first adhesive layer 103. The printed layer 105 is used to display the design. For example, an ink layer.
The specific embodiments described herein are offered by way of example only to illustrate the spirit of the utility model. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the utility model or exceeding the scope of the utility model as defined in the accompanying claims.
Although terms such as the film body 100, the polyester layer 101, the barrier layer 102, the first adhesive layer 103, the second adhesive layer 104, the printed layer 105, the composite functional layer 200, the pressure-sensitive layer 201, the heat-seal layer 202, the composite layer 203, the adhesive layer 204, the intermediate layer 205, etc. are used more herein, the possibility of using other terms is not excluded. These terms are used merely for convenience in describing and explaining the nature of the utility model; they are to be interpreted as any additional limitation that is not inconsistent with the spirit of the present utility model.
Claims (9)
1. The utility model provides a pressure-sensitive packaging film can repeatedly open, includes membrane main part (100), one side fixedly connected with combined type functional layer (200) of membrane main part (100), its characterized in that: the composite functional layer (200) comprises a pressure-sensitive layer (201) made of pressure-sensitive resin, and a heat-sealing layer (202) covers the surface of the pressure-sensitive layer (201);
the composite functional layer (200) further comprises a composite layer (203), a bonding layer (204) and an intermediate layer (205) in sequence, wherein the composite layer (203), the bonding layer (204) and the intermediate layer (205) are made of polyethylene materials, the composite layer (203) is fixedly connected with the film main body (100), and the intermediate layer (205) is fixedly connected with the pressure sensitive layer (201).
2. The reclosable pressure sensitive packaging film of claim 1 wherein: the heat seal layer (202) is made of a polyethylene material and the pressure sensitive layer (201) is made of a metallocene polyethylene.
3. The reclosable pressure sensitive packaging film of claim 1 wherein: the heat seal layer (202) has a thickness of less than 10 microns.
4. The reclosable pressure sensitive packaging film of claim 1 wherein: the combined functional layer (200) has a total thickness of no more than 60 microns.
5. The reclosable pressure sensitive packaging film of claim 1 wherein: the film body (100) comprises a polyester layer (101) and a barrier layer (102), wherein the polyester layer (101) and the barrier layer (102) are bonded through a first bonding layer (103), and the barrier layer (102) and the composite functional layer (200) are bonded through a second bonding layer (104).
6. The reclosable pressure sensitive packaging film of claim 5 wherein: the polyester layer (101) is made of polyethylene terephthalate, and the barrier layer (102) is aluminum foil.
7. The reclosable pressure sensitive packaging film of claim 6 wherein: the first bonding layer (103) is aluminum plastic composite glue.
8. The reclosable pressure sensitive packaging film of claim 5 wherein: the second adhesive layer (104) is a solvent-free glue.
9. The reclosable pressure sensitive packaging film of claim 5 wherein: a printing layer (105) for displaying patterns is further arranged between the polyester layer (101) and the first adhesive layer (103).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223578251.7U CN219667665U (en) | 2022-12-28 | 2022-12-28 | Pressure-sensitive packaging film capable of being repeatedly opened |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223578251.7U CN219667665U (en) | 2022-12-28 | 2022-12-28 | Pressure-sensitive packaging film capable of being repeatedly opened |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219667665U true CN219667665U (en) | 2023-09-12 |
Family
ID=87899757
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223578251.7U Active CN219667665U (en) | 2022-12-28 | 2022-12-28 | Pressure-sensitive packaging film capable of being repeatedly opened |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219667665U (en) |
-
2022
- 2022-12-28 CN CN202223578251.7U patent/CN219667665U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |