CN220742362U - Easily take off aluminium foil sealing membrane - Google Patents
Easily take off aluminium foil sealing membrane Download PDFInfo
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- CN220742362U CN220742362U CN202320826048.2U CN202320826048U CN220742362U CN 220742362 U CN220742362 U CN 220742362U CN 202320826048 U CN202320826048 U CN 202320826048U CN 220742362 U CN220742362 U CN 220742362U
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- 238000007789 sealing Methods 0.000 title claims abstract description 34
- 239000012528 membrane Substances 0.000 title claims abstract description 18
- 239000005030 aluminium foil Substances 0.000 title claims abstract description 6
- 239000010410 layer Substances 0.000 claims abstract description 93
- 239000012790 adhesive layer Substances 0.000 claims abstract description 32
- 239000003292 glue Substances 0.000 claims abstract description 22
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 17
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 17
- 239000011888 foil Substances 0.000 claims abstract description 17
- 229920002635 polyurethane Polymers 0.000 claims description 8
- 239000004814 polyurethane Substances 0.000 claims description 8
- 238000004513 sizing Methods 0.000 claims description 8
- 150000001875 compounds Chemical class 0.000 claims description 6
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- 239000000853 adhesive Substances 0.000 claims 2
- 230000001070 adhesive effect Effects 0.000 claims 2
- 238000013329 compounding Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000035699 permeability Effects 0.000 description 4
- 230000004888 barrier function Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
- 229920002799 BoPET Polymers 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000012793 heat-sealing layer Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000011265 semifinished product Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
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- Laminated Bodies (AREA)
Abstract
The utility model relates to an easy-to-tear aluminum foil sealing film which can not only improve the application range, but also improve the quality guarantee time, can control the cost and has high service life, and comprises a sealing film body, wherein a PP film layer is compounded on the outer side surface of an AL layer in the sealing film body, an easy-to-tear film layer is compounded on the inner side surface of the AL layer, a first adhesive layer is arranged between the AL layer and the PP film layer, a second adhesive layer is arranged between the AL layer and the easy-to-tear film layer, the thickness of the PP film layer is 18-25 mu m, the thickness of the AL film layer is 7-9 mu m, and the thickness of the easy-to-tear film layer is 50-60 mu m. The advantages are that: the utility model provides an easily take off aluminium foil sealing membrane, its is formed by PP rete, first glue layer, AL layer, second glue layer and easily take off the rete complex, not only can improve application range like this, can improve shelf life moreover, can control the cost simultaneously, can improve the bonding fastness between rete and the layer simultaneously.
Description
Technical Field
The utility model belongs to the technical field of food packaging, and particularly relates to an easy-to-tear aluminum foil sealing film.
Background
The sealing easy-to-tear film used in the prior art is composed of a PET film layer 1' and an easy-to-tear film layer 2', a dry laminating agent layer 3' (the thickness of the laminating agent layer needs to reach 3 g/square meter in the prior art), wherein the easy-to-tear film layer is a heat sealing layer positioned on the inner side, the structure of the sealing easy-to-tear film is shown in fig. 2, and the sealing easy-to-tear film has the following defects: the composite film is formed by compounding two layers of films, has insufficient barrier performance (PET/easy-to-tear film barrier performance, moisture permeability is less than or equal to 50 g/(m.multidot.24h), oxygen permeability is less than or equal to 500 cm (m.multidot.24h), and thus, the application range and the application time limit of the easy-to-tear film of the seal are limited.
Disclosure of Invention
The design purpose is as follows: in order to avoid the defects in the background technology, the design of the easy-to-tear aluminum foil sealing film has the advantages that the application range can be increased, the quality guarantee time can be prolonged, the cost can be controlled, and the service life is long.
The design scheme is as follows: to achieve the above design objective.
1. The utility model is characterized in that a first adhesive layer is arranged between the AL layer and the PP film layer, a second adhesive layer is arranged between the AL layer and the easy-to-uncovering film layer, and the design that the thickness of the PP film layer is 18-25 mu m, the thickness of the AL film layer is 7-9 mu m, and the thickness of the easy-to-uncovering film layer is 50-60 mu m is one of the technical characteristics of the utility model. The purpose of this design is: a first adhesive layer is arranged between the AL layer and the PP film layer, a second adhesive layer is arranged between the AL layer and the easy-to-uncover film layer, the thickness of the PP film layer is 18-25 mu m, the thickness of the AL film layer is 7-9 mu m, and the thickness of the easy-to-uncover film layer is 50-60 mu m; firstly, the arrangement of the AL film layer with the thickness of 7-9 mu m can not only improve the application range and the quality guarantee time (the moisture permeability is less than or equal to 0.5 g/(m.24 h) and the oxygen permeability is less than or equal to 0.8 cm/(m.24 h) of the easy-to-tear aluminum foil sealing film, but also greatly improve the quality guarantee period of the content due to the improvement of the barrier property, so that the content can not only meet the short-term eating, but also can be preserved for a long time, namely the applicability is good), and can control the production cost of the easy-to-tear aluminum foil sealing film; secondly, the thickness of the PP film layer is 18-25 mu m, and the thickness of the easy-to-uncovering film layer is 50-60 mu m, so that the PP film layer and the easy-to-uncovering film layer play a role in protecting the AL film layer and simultaneously further control the production cost of the easy-to-uncover aluminum foil sealing film; and a first adhesive layer is arranged between the AL layer and the PP film layer, and a second adhesive layer is arranged between the AL layer and the easy-to-tear film layer, so that the bonding strength between the easy-to-tear aluminum foil sealing film layer and the layer can be improved, and the service life of the aluminum foil sealing film is prolonged.
2. The first adhesive layer is the Huitian 8819 trans-glue, and the sizing amount of the first adhesive layer is 1.5 g/square meter-1.7 g/square meter; the design that the second adhesive layer is the Huitian 8819 trans-glue and the glue coating amount of the second adhesive layer is 1.5 g/square meter-1.7 g/square meter is the second technical feature of the utility model. The purpose of this design is: the first adhesive layer is the Huitian 8819 trans-glue, and the sizing amount of the first adhesive layer is 1.5 g/square meter-1.7 g/square meter; the second adhesive layer is the back-to-back 8819 trans-glue, the sizing amount of the second adhesive layer is 1.5 g/square meter-1.7 g/square meter, so that the bonding strength between the easy-to-tear aluminum foil sealing film layers can be ensured (through detection, the YOPP/AL layer, the peeling force is more than or equal to 1.5N/15 mm, and the detection is qualified if the detection phenomenon is stretch breaking, (YOPP/AL)/easy-to-tear film, the peeling force is more than or equal to 2.5N/15 mm), and the production cost of the easy-to-tear aluminum foil sealing film can be further reduced (the cost can be further reduced by 0.11 yuan/square meter).
3. The PP film layer is a YOPP film, and the inner side surface of the PP film layer is coated with polyurethane ink, so that the design is a third technical feature of the utility model. The purpose of this design is: the PP film layer is a YOPP film, the inner side surface of the PP film layer is coated with polyurethane ink, and a YOPP/AL/easy-to-tear film structure is used, so that the consumer can not feel abrupt and dazzling in appearance because the YOPP has a matte effect which is different from a conventional PET (bright effect), and the matte effect is more comfortable for the observer; the inner side surface of the PP film layer is coated with polyurethane ink, so that the PP film layer plays a role in protecting the polyurethane ink, and the AL film layer can effectively prevent the polyurethane ink from migrating inwards.
The technical scheme is as follows: the utility model provides an easy aluminium foil sealing membrane that takes off, includes sealing membrane body, the lateral surface of the AL layer in the sealing membrane body is compound has the PP rete, the medial surface is compound has the easy rete of taking off, be equipped with first glue layer between AL layer and the PP rete, be equipped with the second glue layer between the AL layer and the easy rete of taking off, PP rete thickness is 18 mu m-25 mu m, AL rete thickness is 7 mu m-9 mu m, easy rete thickness of taking off is 50 mu m-60 mu m.
Compared with the background technology, the easy-to-tear aluminum foil sealing film is formed by compounding the PP film layer, the first adhesive layer, the AL layer, the second adhesive layer and the easy-to-tear film layer, so that the application range can be increased, the quality guarantee time can be prolonged, the cost can be controlled, and the bonding fastness between the film layers can be improved.
Drawings
Fig. 1 is a schematic sectional view of an easy-to-tear aluminum foil sealing film.
FIG. 2 is a schematic cross-sectional view of a conventional tamper evident closure.
Detailed Description
Example 1: reference is made to figure 1. The utility model provides an easy aluminium foil sealing membrane that takes off, includes sealing membrane body 1, the lateral surface of the AL layer 11 in sealing membrane body 1 is compound has PP rete 12, the medial surface is compound has easy membrane layer 13 that takes off, easy membrane layer 13 adopts current easy membrane that takes off, be equipped with first glue layer 14 between AL layer 11 and the PP rete 12, be equipped with second glue layer 15 between AL layer 11 and the easy membrane layer 13 that takes off, PP rete 12 thickness is 18 μm-25 μm, AL rete 11 thickness is 7 μm-9 μm, easy membrane layer 13 thickness is 50 μm-60 μm. The uncovering of the selected easy-uncovering film layer 13 is 5N/15 mm-8N/15mm.
The first adhesive layer 14 is the anti-glue of the world 8819 and the sizing amount of the first adhesive layer 14 is 1.5 g/square meter-1.7 g/square meter; the second adhesive layer 15 is the anti-glue of the next day 8819 and the sizing amount of the second adhesive layer 15 is 1.5 g/square meter-1.7 g/square meter. Preferably, the first adhesive layer 14 has a sizing of 1.6 g/square meter and the second adhesive layer 15 has a sizing of 1.6 g/square meter. Preferably, the thickness of the PP film 12 is 22 μm, the thickness of the AL film layer 11 is 8 μm, and the thickness of the easy-to-tear film layer 13 is 55 μm.
During production, YOPP/AL is compounded by using the back-to-back 8819 trans-glue, the glue coating amount is 1.6 g/square meter, so that the appearance and the use functional requirements are ensured, the cost is saved, and the resources are saved; after that (YOPP/AL)/easy-to-tear film, namely the semi-finished product is compounded by the easy-to-tear film, 8819 glue is also used for compounding, the glue coating amount is 1.6 g/square meter, and the 8819 glue has the following advantages: (1) the cost is saved, and the cost in the compounding process is reduced from the original about 0.15 yuan per square meter to the current 0.04 yuan per square meter; (2) 8819 glue is used without solvent, so that the produced easy-to-tear aluminum foil sealing film is more environment-friendly and safer to use.
Example 2: on the basis of example 1. The PP film layer 12 is a YOPP film, and the inner side surface of the PP film layer 12 is coated with polyurethane ink, and the polyurethane ink can form clearer marks and marks on the PP film layer 12.
It should be understood that: although the above embodiments describe the design concept of the present utility model in more detail, these descriptions are merely descriptions of the design concept of the present utility model, and not limitations on the design concept of the present utility model, and any combination, addition or modification not exceeding the design concept of the present utility model falls within the scope of the present utility model.
Claims (5)
1. The utility model provides an easy aluminium foil sealing membrane of taking off, includes sealing membrane body (1), the lateral surface of AL layer (11) in sealing membrane body (1) is compound has PP rete (12), the medial surface is compound has easy membrane layer (13) of taking off, characterized by: a first adhesive layer (14) is arranged between the AL layer (11) and the PP film layer (12), a second adhesive layer (15) is arranged between the AL layer (11) and the easy-to-tear film layer (13), the thickness of the PP film layer (12) is 18-25 mu m, the thickness of the AL film layer (11) is 7-9 mu m, and the thickness of the easy-to-tear film layer (13) is 50-60 mu m.
2. The easy-to-tear aluminum foil sealing film according to claim 1, wherein: the first adhesive layer (14) is the back-to-back 8819 trans-glue, and the sizing amount of the first adhesive layer (14) is 1.5 g/square meter-1.7 g/square meter; the second adhesive layer (15) is the back-to-back 8819 trans-glue, and the glue coating amount of the second adhesive layer (15) is 1.5 g/square meter-1.7 g/square meter.
3. The easy-to-tear aluminum foil sealing film according to claim 2, wherein: the first adhesive layer (14) has an adhesive size of 1.6 g/square meter and the second adhesive layer (15) has an adhesive size of 1.6 g/square meter.
4. The easy-to-tear aluminum foil sealing film according to claim 1 or 2, characterized in that: the thickness of the PP film (12) is 22 mu m, the thickness of the AL film layer (11) is 8 mu m, and the thickness of the easy-to-uncover film layer (13) is 55 mu m.
5. The easy-to-tear aluminum foil sealing film according to claim 4, wherein: the PP film layer (12) is a YOPP film, and the inner side surface of the PP film layer (12) is coated with polyurethane ink.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320826048.2U CN220742362U (en) | 2023-04-10 | 2023-04-10 | Easily take off aluminium foil sealing membrane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320826048.2U CN220742362U (en) | 2023-04-10 | 2023-04-10 | Easily take off aluminium foil sealing membrane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220742362U true CN220742362U (en) | 2024-04-09 |
Family
ID=90569822
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320826048.2U Active CN220742362U (en) | 2023-04-10 | 2023-04-10 | Easily take off aluminium foil sealing membrane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220742362U (en) |
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2023
- 2023-04-10 CN CN202320826048.2U patent/CN220742362U/en active Active
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