CN2637378Y - Five layer coextrusion high interception package composite film - Google Patents
Five layer coextrusion high interception package composite film Download PDFInfo
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- CN2637378Y CN2637378Y CN 03210214 CN03210214U CN2637378Y CN 2637378 Y CN2637378 Y CN 2637378Y CN 03210214 CN03210214 CN 03210214 CN 03210214 U CN03210214 U CN 03210214U CN 2637378 Y CN2637378 Y CN 2637378Y
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- Prior art keywords
- layer
- resin
- squeezing
- evoh
- bed
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- 239000002131 composite material Substances 0.000 title claims description 32
- 239000010410 layer Substances 0.000 claims abstract description 76
- 229920000219 Ethylene vinyl alcohol Polymers 0.000 claims abstract description 44
- UFRKOOWSQGXVKV-UHFFFAOYSA-N ethene;ethenol Chemical compound C=C.OC=C UFRKOOWSQGXVKV-UHFFFAOYSA-N 0.000 claims abstract description 34
- 239000004715 ethylene vinyl alcohol Substances 0.000 claims abstract description 34
- 239000000463 material Substances 0.000 claims abstract description 14
- 238000007639 printing Methods 0.000 claims abstract description 10
- 239000011347 resin Substances 0.000 claims description 54
- 229920005989 resin Polymers 0.000 claims description 54
- 238000007789 sealing Methods 0.000 claims description 18
- 238000004806 packaging method and process Methods 0.000 claims description 17
- 239000012790 adhesive layer Substances 0.000 claims description 16
- 229920000092 linear low density polyethylene Polymers 0.000 claims description 14
- 239000004707 linear low-density polyethylene Substances 0.000 claims description 14
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 12
- 239000005030 aluminium foil Substances 0.000 claims description 10
- 239000011229 interlayer Substances 0.000 claims description 10
- 229920001684 low density polyethylene Polymers 0.000 claims description 8
- 239000004702 low-density polyethylene Substances 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 5
- 239000005977 Ethylene Substances 0.000 claims description 4
- 239000012748 slip agent Substances 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 abstract description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 5
- 239000011888 foil Substances 0.000 abstract description 5
- 238000003912 environmental pollution Methods 0.000 abstract description 3
- 239000012793 heat-sealing layer Substances 0.000 abstract 3
- 238000000034 method Methods 0.000 abstract 2
- 229920001577 copolymer Polymers 0.000 abstract 1
- 230000004888 barrier function Effects 0.000 description 8
- 238000010438 heat treatment Methods 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 235000013305 food Nutrition 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000012528 membrane Substances 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 238000012856 packing Methods 0.000 description 3
- 238000007664 blowing Methods 0.000 description 2
- 235000013399 edible fruits Nutrition 0.000 description 2
- 238000009459 flexible packaging Methods 0.000 description 2
- 229920001081 Commodity plastic Polymers 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 235000013410 fast food Nutrition 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 235000008216 herbs Nutrition 0.000 description 1
- 235000015110 jellies Nutrition 0.000 description 1
- 239000008274 jelly Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000033764 rhythmic process Effects 0.000 description 1
- 235000015067 sauces Nutrition 0.000 description 1
- 235000013599 spices Nutrition 0.000 description 1
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Abstract
The technic proposal of the utility model provides a five-layer coextrusion highly obstruct package complex film which is composed of a printing plus material layer, an adhesion layer, an aluminum foil, an adhesion layer and a heat sealing layer. One face of the adhesion layer is provided with the printing plus material layer, the other face of the adhesion layer is provided with the aluminum foil, the adhesion layer and the heat sealing layer. The utility model is characterized in that the other face of the adhesion layer is provided with an ethane-vinylol copolymer ( EVOH) five-layer coextrusion film besides the aluminum foil, the adhesion layer and the heat sealing layer. The utility model has the advantages of penetrability, few process procedures, small environmental pollution and good obstruct performance, which can be heated by microwave and is easy to be recycled and regenerated.
Description
Technical field
The utility model relates to a kind of five-layer co-squeezing high-barrier packaging composite film that is used for commodity plastic compound flexible packagings such as microwave food, sauce based food, fruit drink, fruit jelly, oily food, spices, rare medicinal herbs, belongs to the plastic compound flexible packaging technical field.
Background technology
At present, traditional high-barrier packaging composite film is made up of the printing surface bed of material, adhesive layer, aluminium foil, adhesive layer, hot sealing layer usually, as shown in Figure 1, although barrier property is outstanding, but it is several all over bonding to need to adopt adhesion agent to carry out, and not only manufacturing procedure is many, cost is high but also environmental pollution is big.
As the aluminium foil that uses on traditional high-barrier packaging composite film, under the enough prerequisite of aluminum foil thickness, can intercept gas and moisture fully, but a fatal defective is arranged---crooked back aluminium foil is easy to produce fracture, influences the barrier property of aluminium foil.Simultaneously traditional high-barrier packaging composite film can't be applied to require transparent occasion, and can not microwave heating and plastic-aluminum combinedly be difficult to recycling together.
Summary of the invention
But the purpose of this utility model just provides a kind of transparency microwave heating, is convenient to reclaiming, the five-layer co-squeezing high-barrier packaging composite film that barrier property is good.
For reaching above purpose, the technical solution of the utility model provides a kind of five-layer co-squeezing high-barrier packaging composite film, form by the printing surface bed of material, adhesive layer, aluminium foil, adhesive layer, hot sealing layer, the one side of adhesive layer is equipped with the printing surface bed of material, another side is equipped with aluminium foil, adhesive layer, hot sealing layer, it is characterized in that, cast out aluminium foil, adhesive layer, hot sealing layer, be equipped with Ethylene vinyl alcohol copolymer EVOH five-layer co-squeezing film at the another side of adhesive layer.
Described ethylene-vinyl alcohol copolymer EVOH five-layer co-squeezing film, be made up of composite bed, bonding resin layer, EVOH resin bed, bonding resin layer, hot sealing layer, composite bed is that interlayer, bonding resin layer are internal layer for time interlayer, hot sealing layer for outer, bonding resin layer for time interlayer, EVOH resin bed.
Described composite bed can be that mono-also can mix for not containing or contain less LLDPE resin, the LDPE resin of opening agent and slip agent; Described hot sealing layer is metallocene LLDPE resin, LLDPE resin, LDPE resin, can be partially mixed, also can be whole mixing, but must contain metallocene LLDPE resin; Described EVOH resin bed is that ethylene contents is not more than 38% EVOH resin, and Thickness Design is 〉=20 μ.
In the combination of five-layer co-squeezing blown film, the EVOH resin is placed on interlayer, resin of binding property is placed on respectively near two of interlayer interlayers, with metallocene LLDPE resin, the LLDPE resin, the hot sealing layer of LDPE resin and blend thereof is placed on internal layer, to not contain or contain less the LLDPE resin of opening agent and slip agent, the composite bed of LDPE resin and blend thereof is placed on skin, can make EVOH five-layer co-squeezing film like this except having high oxygen resistance, one can make its heat cover have the antipollution heat sealability, and two can improve the combined strength bination of its composite surface and the printing surface bed of material.
Adopt raws MAT'L such as high barrier EVOH resin, binder resin, metallocene heat sealing resin on the five-layer co-squeezing membrane blowing production line, to make up blowing and form EVOH five-layer co-squeezing film, both had barrier property, again can be directly as antipollution heat sealability membraneous material, and has a transparency, owing to have the transparency, can be clear that the packing content thing, so that attract customer's desire to purchase; Its microwave heating is applied to the packing of fast food, has satisfied the fast rhythm of life demand of current city white collar.
But the utility model has the advantages that have transparency microwave heating, manufacturing procedure is few, environmental pollution is little, good, the easy reclaiming of barrier property.
Description of drawings:
Fig. 1 is traditional high-barrier packaging composite film structural representation;
Fig. 2 is a five-layer co-squeezing high-barrier packaging composite film structural representation;
Fig. 3 is an ethylene-vinyl alcohol copolymer EVOH five-layer co-squeezing membrane structure scheme drawing.
Specific embodiments
The utility model is described in further detail below in conjunction with drawings and Examples.
As shown in Figure 2, be a kind of five-layer co-squeezing high-barrier packaging composite film structural representation, form by the printing surface bed of material 1, adhesive layer 2, ethylene-vinyl alcohol copolymer EVOH five-layer co-squeezing film 6.
As shown in Figure 3, for ethylene-vinyl alcohol copolymer EVOH five-layer co-squeezing membrane structure scheme drawing, form by composite bed 7, bonding resin layer 8, EVOH resin bed 9, bonding resin layer 10, hot sealing layer 11.
According to the difference of packing content thing, the type selecting that can be adjusting of EVOH resin layer thickness and EVOH resin brand to the interlayer in the EVOH five-layer co-squeezing film is to reach different oxygen transit dose indexs.For example, EVOH co-extrusion film barrier layer thickness is designed to 〉=and 20 μ, select for use ethylene contents to be not more than 38% EVOH resin such as Japanese synthetic chemistry ET3803, the resistance oxygen value almost can compare favourably with the aluminum foil composite barrier property at 1.0～1.5ml/m2.24hr.23 ℃ below the .50%RH.
Five-layer co-squeezing high-barrier packaging composite film is made like this:
It is Japanese synthetic chemistry ET3803 that the material selection ethylene contents of EVOH resin bed 9 is not more than 38% EVOH resin, and Thickness Design is 〉=20 μ; Composite bed 7 is selected LLDPE resin, LDPE resin and the blend thereof that does not contain or contain less opening agent and slip agent for use; Hot sealing layer 11 is selected metallocene LLDPE resin, LLDPE resin, LDPE resin and blend thereof for use; Composite bed 7, bonding resin layer 8, EVOH resin bed 9, bonding resin layer 10, hot sealing layer 11 are finished EVOH five-layer co-squeezing film 6 on five-layer co-squeezing blown film line.
The offprint brush finish bed of material 1 material is NY or PET, the skins that on the printing surface bed of material 1, are coated with adhesive layer 2 back and EVOH five-layer co-squeezing film 6 be composite bed 7 sides on dry compound machine, finish composite task get final product five-layer co-squeezing high-barrier packaging composite film.
Claims (5)
1. five-layer co-squeezing high-barrier packaging composite film, form by the printing surface bed of material (1), adhesive layer (2), aluminium foil (3), adhesive layer (4), hot sealing layer (5), the one side of adhesive layer (2) is equipped with the printing surface bed of material (1), another side is equipped with aluminium foil (3), adhesive layer (4), hot sealing layer (5), it is characterized in that, cast out aluminium foil (3), adhesive layer (4), hot sealing layer (5), be equipped with ethylene-vinyl alcohol copolymer EVOH five-layer co-squeezing film (6) at the another side of adhesive layer (2).
2. five-layer co-squeezing high-barrier packaging composite film according to claim 1, it is characterized in that, described ethylene-vinyl alcohol copolymer EVOH five-layer co-squeezing film (6), be made up of composite bed (7), bonding resin layer (8), EVOH resin bed (9), bonding resin layer (10), hot sealing layer (11), composite bed (7) is that skin, bonding resin layer (8) are internal layer for interlayer, bonding resin layer (10) for inferior interlayer, hot sealing layer (11) for time interlayer, EVOH resin bed (9).
3. five-layer co-squeezing high-barrier packaging composite film according to claim 1 and 2, it is characterized in that, described ethylene-vinyl alcohol copolymer EVOH five-layer co-squeezing film (6), its composite bed (7) can be that mono-also can mix for not containing or contain less LLDPE resin, the LDPE resin of opening agent and slip agent.
4. five-layer co-squeezing high-barrier packaging composite film according to claim 1 and 2, it is characterized in that, described ethylene-vinyl alcohol copolymer EVOH five-layer co-squeezing film (6), its hot sealing layer (11) is metallocene LLDPE resin, LLDPE resin, LDPE resin, can be partially mixed, also can be whole mixing, but must contain metallocene LLDPE resin.
5. five-layer co-squeezing high-barrier packaging composite film according to claim 1 and 2, it is characterized in that, described ethylene-vinyl alcohol copolymer EVOH five-layer co-squeezing film (6), its EVOH resin bed (9) is not more than 38% EVOH resin for ethylene contents, and Thickness Design is 〉=20 μ.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03210214 CN2637378Y (en) | 2003-09-01 | 2003-09-01 | Five layer coextrusion high interception package composite film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03210214 CN2637378Y (en) | 2003-09-01 | 2003-09-01 | Five layer coextrusion high interception package composite film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2637378Y true CN2637378Y (en) | 2004-09-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03210214 Expired - Fee Related CN2637378Y (en) | 2003-09-01 | 2003-09-01 | Five layer coextrusion high interception package composite film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2637378Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101758959A (en) * | 2009-12-30 | 2010-06-30 | 上海展骋高分子材料有限公司 | Five-layer co-extrusion high barrier liquid packaging film and preparation method thereof |
| CN101863341A (en) * | 2010-06-11 | 2010-10-20 | 上海紫江彩印包装有限公司 | Double-layer pre-folded coiled film and production method thereof |
| CN102717571A (en) * | 2012-07-02 | 2012-10-10 | 河北永新包装有限公司 | Microwave heating composite packaging film and preparation method thereof |
| CN103766679A (en) * | 2014-01-28 | 2014-05-07 | 广东喜之郎集团有限公司 | Color protecting technology of pulps in jelly |
| CN114734654A (en) * | 2022-05-16 | 2022-07-12 | 安徽紫金新材料科技股份有限公司 | A kind of preparation method of high barrier packaging material |
-
2003
- 2003-09-01 CN CN 03210214 patent/CN2637378Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101758959A (en) * | 2009-12-30 | 2010-06-30 | 上海展骋高分子材料有限公司 | Five-layer co-extrusion high barrier liquid packaging film and preparation method thereof |
| CN101863341A (en) * | 2010-06-11 | 2010-10-20 | 上海紫江彩印包装有限公司 | Double-layer pre-folded coiled film and production method thereof |
| CN102717571A (en) * | 2012-07-02 | 2012-10-10 | 河北永新包装有限公司 | Microwave heating composite packaging film and preparation method thereof |
| CN102717571B (en) * | 2012-07-02 | 2015-01-28 | 河北永新包装有限公司 | Microwave heating composite packaging film and preparation method thereof |
| CN103766679A (en) * | 2014-01-28 | 2014-05-07 | 广东喜之郎集团有限公司 | Color protecting technology of pulps in jelly |
| CN114734654A (en) * | 2022-05-16 | 2022-07-12 | 安徽紫金新材料科技股份有限公司 | A kind of preparation method of high barrier packaging material |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20040901 Termination date: 20091009 |