CN204354551U - Coextru-lamination barrier packaging film - Google Patents
Coextru-lamination barrier packaging film Download PDFInfo
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- CN204354551U CN204354551U CN201420833967.3U CN201420833967U CN204354551U CN 204354551 U CN204354551 U CN 204354551U CN 201420833967 U CN201420833967 U CN 201420833967U CN 204354551 U CN204354551 U CN 204354551U
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Abstract
Coextru-lamination barrier packaging film, belongs to field of packaging material.The utility model is higher in order to solve existing co-extrusion film intermediate layer water imbibition, barrier layer barrier declines, effective shelf-life of product is short, simultaneously due to the vibrational power flow of the single barrier layer of co-extrusion film intermediate layer PA and both sides thereof, the problem of packaging film high obstructing performance and high co-extrusion ductility cannot be realized simultaneously.Packaging film comprises BOPET biaxial stretching polyester film, APET photomask, a PE polyethylene film, a PET polyester film, an EVOH barrier layer, PVDC gas barrier film, the 2nd EVOH barrier layer, the 2nd PET polyester film and the 2nd PE polyethylene film; Described BOPET biaxial stretching polyester film, APET photomask, a PE polyethylene film, a PET polyester film, an EVOH barrier layer, PVDC gas barrier film, the 2nd EVOH barrier layer, the 2nd PET polyester film and the 2nd PE polyethylene film coextru-lamination from outside to inside form packaging film.Packaging film of the present utility model is especially applicable to the packaging of fresh seafood, beef and dried bean curd.
Description
Technical field
The utility model relates to a kind of co-extrusion packaging film, is specifically related to a kind of coextru-lamination barrier packaging film, belongs to field of packaging material.
Background technology
At present, numerous aquatic products companies outlet seafood uses the vacuum packaging of co-extrusion film.But, when packing content and being the larger seafood product of humidity, due to co-extrusion film intermediate layer PA(nylon) water imbibition higher, and barrier layer EVOH(ethylene/vinyl alcohol copolymer) when high humility, barrier sharply declines, thus had a strong impact on the overall barrier property of packaging, substantially reduce effective shelf-life of product, simultaneously due to co-extrusion film intermediate layer PA(nylon) and the single barrier layer EVOH(ethylene/vinyl alcohol copolymer of both sides) vibrational power flow, the high obstructing performance of packaging film and the high co-extrusion ductility of packaging film cannot be realized simultaneously.Therefore, a kind of packaging film simultaneously with high barrier and high co-extrusion ductility is urgently designed.
Summary of the invention
The purpose of this utility model is to provide a kind of coextru-lamination barrier packaging film, higher with the water imbibition solving existing co-extrusion film intermediate layer PA, barrier layer EVOH barrier sharply declines, shorten effective shelf-life of product, simultaneously due to the vibrational power flow of the single barrier layer of co-extrusion film intermediate layer PA and both sides thereof, the problem of packaging film high obstructing performance and packaging film high co-extrusion ductility cannot be realized simultaneously.
The utility model in order to solve the problems of the technologies described above taked technical scheme is:
Coextru-lamination barrier packaging film of the present utility model, comprises BOPET biaxial stretching polyester film, APET photomask, a PE polyethylene film, a PET polyester film, an EVOH barrier layer, PVDC gas barrier film, the 2nd EVOH barrier layer, the 2nd PET polyester film and the 2nd PE polyethylene film; Described BOPET biaxial stretching polyester film, APET photomask, a PE polyethylene film, a PET polyester film, an EVOH barrier layer, PVDC gas barrier film, the 2nd EVOH barrier layer, the 2nd PET polyester film and the 2nd PE polyethylene film coextru-lamination from outside to inside form packaging film.
PA film as core structural layer, by the stepped construction of the film that changes package, is replaced with PVDC gas barrier film, enhances the barrier property of packaging film by the utility model, because PVDC has stronger shrinkage, thus also enhances the ductility of packaging film.In order to make packaging film have stronger barrier property and ductility, the utility model, except arranging EVOH barrier layer in the both sides of core structural layer PVDC gas barrier film, also add PET polyester film.Moreover the utility model also add BOPET biaxial stretching polyester film as printing basement membrane, is convenient to follow-up printing labeling.Last the utility model also add photomask, occurs rotten for preventing article in packaging bag because of reasons such as illumination.
Preferred: a described PET polyester film and the 2nd PET polyester film are all processed with mesh.Setting like this, while the overall barrier of guarantee packaging film, further increases the ductility of packaging film.
Preferred: the shape of described mesh is rhombus.Setting like this, the integral extension of packaging film is stronger.
Preferred: the thickness of described coextru-lamination barrier packaging film is 540 ~ 560 μm.Setting like this, meets the requirement of strength of packaging film.
Preferred: the thickness of described PVDC gas barrier film is 70 ~ 90 μm.Setting like this, while meeting gas barrier property, ductility is better.
The utility model compared with prior art has following effect: the stepped construction by the film that changes package of the present utility model, PA film as core structural layer is replaced with PVDC gas barrier film, enhance the barrier property of packaging film, because PVDC has stronger shrinkage, thus also enhance the ductility of packaging film.In order to make packaging film have stronger barrier property and ductility, the utility model, except arranging EVOH barrier layer in the both sides of core structural layer PVDC gas barrier film, also add PET polyester film.Moreover the utility model also add BOPET biaxial stretching polyester film as printing basement membrane, is convenient to follow-up printing labeling.Last the utility model also add photomask, occurs rotten for preventing article in packaging bag because of reasons such as illumination.It has good shrinkage, gas barrier property, water preventing ability, is mainly used in the packaging of fresh seafood, beef and dried bean curd etc.(gas barrier properties does not change with the change of humidity to utilize its gas barrier property, even if high humidity environment also can not cause product to go bad), the generation of Food Oxidation denaturalization phenomenon can be delayed, greatly extend the product shelf phase, the fragrance of content can be avoided to scatter and disappear and prevent the intrusion of outside bad smell simultaneously; Utilize the resistance of packaging film moist, the phenomenon of product generation dehydration exsiccation, taste bad can be prevented, packaging prototype can not be damaged because of product water suction, prevent quantitative goods generation natural wastage (weightlessness); Utilize packaging film hypotonicity, can loss of aroma be prevented, and not absorption of residual residual air taste and off-taste, the integrality (this point is particularly important when packing low fat or high-protein food) of smell can be ensured.Packaging film of the present utility model can at 100 DEG C, and bear the heating duration of 10 minutes, have flexibility good, heat sealability is excellent, nonpoisonous and tasteless, and oil resistivity is good, the advantage of good corrosion resistance.Packaging film of the present utility model is especially applicable to the packaging of fresh seafood, beef and dried bean curd.
Accompanying drawing explanation
Fig. 1 is the structure chart of coextru-lamination barrier packaging film described in the utility model.
In figure: 1-BOPET biaxial stretching polyester film; 2-APET photomask; 3-the one PE polyethylene film; 4-the one PET polyester film; 5-the one EVOH barrier layer; 6-PVDC gas barrier film; 7-the 2nd EVOH barrier layer; 8-the 2nd PET polyester film; 9-the 2nd PE polyethylene film.
Detailed description of the invention
Elaborate the utility model with reference to the accompanying drawings preferred embodiment below.
As shown in Figure 1, coextru-lamination barrier packaging film described in the utility model comprises BOPET biaxial stretching polyester film 1, APET photomask 2, a PE polyethylene film 3, a PET polyester film 4, an EVOH barrier layer 5, PVDC gas barrier film 6, the 2nd EVOH barrier layer 7, the 2nd PET polyester film 8 and the 2nd PE polyethylene film 9; Described BOPET biaxial stretching polyester film 1, APET photomask 2, a PE polyethylene film 3, a PET polyester film 4, an EVOH barrier layer 5, PVDC gas barrier film 6, the 2nd EVOH barrier layer 7, the 2nd PET polyester film 8 and the 2nd PE polyethylene film 9 coextru-lamination from outside to inside form packaging film.A described PET polyester film 4 and the 2nd PET polyester film 8 are all processed with mesh.The shape of described mesh is rhombus.The thickness of coextru-lamination barrier packaging film is 540 ~ 560 μm.The thickness of PVDC gas barrier film is 70 ~ 90 μm.
PA film as core structural layer, by the stepped construction of the film that changes package, is replaced with PVDC gas barrier film, enhances the barrier property of packaging film by the utility model, because PVDC has stronger shrinkage, thus also enhances the ductility of packaging film.In order to make packaging film have stronger barrier property and ductility, the utility model, except arranging EVOH barrier layer in the both sides of core structural layer PVDC gas barrier film, also add PET polyester film.Moreover the utility model also add BOPET biaxial stretching polyester film as printing basement membrane, is convenient to follow-up printing labeling.Last the utility model also add photomask, occurs rotten for preventing article in packaging bag because of reasons such as illumination.This packaging film can resistance to 100 DEG C of poach, can not thermophilic digestion.Its tensile property of this packaging film is better, and be suitable for the packaging of larger volume, can be used for the mould striking out content shape, not with other materials compound tense, deep drawn can reach 16cm; Compound CPP(cast polypropylene) time, the shallow stretching of 2cm can be done.
The exemplary illustration of present embodiment just to this patent, does not limit its protection domain, and those skilled in the art can also change, as long as no the Spirit Essence exceeding this patent, in the protection domain of this patent its local.
Claims (5)
1. coextru-lamination barrier packaging film, is characterized in that: comprise BOPET biaxial stretching polyester film (1), APET photomask (2), a PE polyethylene film (3), a PET polyester film (4), an EVOH barrier layer (5), PVDC gas barrier film (6), the 2nd EVOH barrier layer (7), the 2nd PET polyester film (8) and the 2nd PE polyethylene film (9); Described BOPET biaxial stretching polyester film (1), APET photomask (2), a PE polyethylene film (3), a PET polyester film (4), an EVOH barrier layer (5), PVDC gas barrier film (6), the 2nd EVOH barrier layer (7), the 2nd PET polyester film (8) and the 2nd PE polyethylene film (9) coextru-lamination from outside to inside form packaging film.
2. coextru-lamination barrier packaging film according to claim 1, is characterized in that: a described PET polyester film (4) and the 2nd PET polyester film (8) are all processed with mesh.
3. coextru-lamination barrier packaging film according to claim 2, is characterized in that: the shape of described mesh is rhombus.
4. coextru-lamination barrier packaging film according to claim 3, is characterized in that: the thickness of described coextru-lamination barrier packaging film is 540 ~ 560 μm.
5. coextru-lamination barrier packaging film according to claim 4, is characterized in that: the thickness of described PVDC gas barrier film is 70 ~ 90 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420833967.3U CN204354551U (en) | 2014-12-25 | 2014-12-25 | Coextru-lamination barrier packaging film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420833967.3U CN204354551U (en) | 2014-12-25 | 2014-12-25 | Coextru-lamination barrier packaging film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204354551U true CN204354551U (en) | 2015-05-27 |
Family
ID=53256040
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420833967.3U Withdrawn - After Issue CN204354551U (en) | 2014-12-25 | 2014-12-25 | Coextru-lamination barrier packaging film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204354551U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104494262A (en) * | 2014-12-25 | 2015-04-08 | 哈尔滨隆华艺达包装制品有限公司 | Coextrusion-lamination obstructing packaging film |
| CN106584991A (en) * | 2016-12-07 | 2017-04-26 | 滁州瑞林包装材料有限公司 | Aluminum plastic medicine composite film |
| CN111363320A (en) * | 2020-04-30 | 2020-07-03 | 珠海华润化学材料科技有限公司 | Modified polyester material, composite sandwich board prepared from modified polyester material and preparation method of composite sandwich board |
-
2014
- 2014-12-25 CN CN201420833967.3U patent/CN204354551U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104494262A (en) * | 2014-12-25 | 2015-04-08 | 哈尔滨隆华艺达包装制品有限公司 | Coextrusion-lamination obstructing packaging film |
| CN104494262B (en) * | 2014-12-25 | 2016-06-08 | 哈尔滨隆华艺达包装制品有限公司 | Coextru-lamination barrier packaging film |
| CN106584991A (en) * | 2016-12-07 | 2017-04-26 | 滁州瑞林包装材料有限公司 | Aluminum plastic medicine composite film |
| CN111363320A (en) * | 2020-04-30 | 2020-07-03 | 珠海华润化学材料科技有限公司 | Modified polyester material, composite sandwich board prepared from modified polyester material and preparation method of composite sandwich board |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150527 Effective date of abandoning: 20160608 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |