CN104494262B - Coextru-lamination barrier packaging film - Google Patents

Coextru-lamination barrier packaging film Download PDF

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Publication number
CN104494262B
CN104494262B CN201410817531.XA CN201410817531A CN104494262B CN 104494262 B CN104494262 B CN 104494262B CN 201410817531 A CN201410817531 A CN 201410817531A CN 104494262 B CN104494262 B CN 104494262B
Authority
CN
China
Prior art keywords
film
barrier
packaging
packaging film
coextru
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201410817531.XA
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Chinese (zh)
Other versions
CN104494262A (en
Inventor
刘永峰
吴艳秋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HARBIN LONGHUA YIDA PACKAGE PRODUCT CO Ltd
Original Assignee
HARBIN LONGHUA YIDA PACKAGE PRODUCT CO Ltd
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Publication date
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Priority to CN201410817531.XA priority Critical patent/CN104494262B/en
Publication of CN104494262A publication Critical patent/CN104494262A/en
Application granted granted Critical
Publication of CN104494262B publication Critical patent/CN104494262B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form
    • B32B3/10—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material
    • B32B3/12—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material characterised by a layer of regularly- arranged cells, e.g. a honeycomb structure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
    • B65D65/38—Packaging materials of special type or form
    • B65D65/40—Applications of laminates for particular packaging purposes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2439/00—Containers; Receptacles
    • B32B2439/70—Food packaging

Abstract

Coextru-lamination barrier packaging film, belongs to field of packaging material. The present invention is to solve that existing co-extrusion film intermediate layer water absorption is higher, barrier layer barrier declines, effective shelf-life of product is short, simultaneously because the structure of the single barrier layer of co-extrusion film intermediate layer PA and both sides thereof is arranged, it is impossible to realize packaging film high obstructing performance and the problem of high co-extrusion ductility simultaneously. Packaging film includes BOPET biaxial stretching polyester film, APET photomask, a PE polyethylene film, a PET mylar, the first EVOH barrier layer, PVDC gas barrier film, the second EVOH barrier layer, the 2nd PET mylar and the 2nd PE polyethylene film; Described BOPET biaxial stretching polyester film, APET photomask, a PE polyethylene film, a PET mylar, the first EVOH barrier layer, PVDC gas barrier film, the second EVOH barrier layer, the 2nd PET mylar and the 2nd PE polyethylene film coextru-lamination from outside to inside constitute packaging film. The packaging film of the present invention is especially suitable for the packaging of fresh seafood, beef and dried tofu.

Description

Coextru-lamination barrier packaging film
Technical field
The present invention relates to a kind of co-extrusion packaging film, be specifically related to a kind of coextru-lamination barrier packaging film, belong to field of packaging material.
Background technology
At present, numerous Aquatic product companies outlet seafood uses co-extrusion film vacuum packaging. But, when packing content and being the bigger seafood product of humidity, due to co-extrusion film intermediate layer PA(nylon) water absorption higher, and barrier layer EVOH(ethylene/vinyl alcohol copolymer) when high humility, barrier sharply declines, thus having had a strong impact on the barrier property that packaging is overall, substantially reduce effective shelf-life of product, simultaneously because co-extrusion film intermediate layer PA(nylon) and the single barrier layer EVOH(ethylene/vinyl alcohol copolymer of both sides) structure arrange, it is impossible to realize the high obstructing performance of packaging film and the high co-extrusion ductility of packaging film simultaneously. It would therefore be highly desirable to design a kind of packaging film with high barrier and high co-extrusion ductility.
Summary of the invention
It is an object of the invention to provide a kind of coextru-lamination barrier packaging film, water absorption to solve existing co-extrusion film intermediate layer PA is higher, barrier layer EVOH barrier sharply declines, shorten effective shelf-life of product, simultaneously because the structure of the single barrier layer of co-extrusion film intermediate layer PA and both sides thereof is arranged, it is impossible to realize packaging film high obstructing performance and the problem of packaging film high co-extrusion ductility simultaneously.
The present invention is to solve that above-mentioned technical problem is adopted the technical scheme that:
The coextru-lamination barrier packaging film of the present invention, including BOPET biaxial stretching polyester film, APET photomask, a PE polyethylene film, a PET mylar, the first EVOH barrier layer, PVDC gas barrier film, the second EVOH barrier layer, the 2nd PET mylar and the 2nd PE polyethylene film;Described BOPET biaxial stretching polyester film, APET photomask, a PE polyethylene film, a PET mylar, the first EVOH barrier layer, PVDC gas barrier film, the second EVOH barrier layer, the 2nd PET mylar and the 2nd PE polyethylene film coextru-lamination from outside to inside constitute 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, owing to PVDC has stronger shrinkage, thus also enhancing the ductility of packaging film by the present invention. In order to make packaging film have stronger barrier property and ductility, the present invention, except arranging EVOH barrier layer in the both sides of core structural layer PVDC gas barrier film, also add PET mylar. Furthermore present invention also adds BOPET biaxial stretching polyester film as printing basement membrane, it is simple to follow-up printing labeling. Finally present invention also adds photomask, for preventing article in packaging bag from occurring rotten because of reasons such as illumination.
Preferred: on a described PET mylar and the 2nd PET mylar, all processing has mesh. So arrange, while ensureing packaging film entirety barrier, further increase the ductility of packaging film.
Preferred: described mesh be shaped as rhombus. So arranging, the integral extension of packaging film is higher.
Preferred: the thickness of described coextru-lamination barrier packaging film is 540 ~ 560 ��m. So arrange, meet the requirement of strength of packaging film.
Preferred: the thickness of described PVDC gas barrier film is 70 ~ 90 ��m. So arranging, while meeting gas barrier property, ductility is better.
The present invention compared with prior art has the effect that the stepped construction by the film that changes package of the present invention, PA film as core structural layer is replaced with PVDC gas barrier film, enhance the barrier property of packaging film, owing to PVDC has stronger shrinkage, thus also enhancing the ductility of packaging film. In order to make packaging film have stronger barrier property and ductility, the present invention, except arranging EVOH barrier layer in the both sides of core structural layer PVDC gas barrier film, also add PET mylar. Furthermore present invention also adds BOPET biaxial stretching polyester film as printing basement membrane, it is simple to follow-up printing labeling. Finally present invention also adds photomask, for preventing article in packaging bag from occurring rotten because of reasons such as illumination. It has good contractility, gas barrier property, water preventing ability, is mainly used in the packaging of fresh seafood, beef and dried tofu etc. (gas barrier properties does not change with the change of humidity to utilize its gas barrier property, even if high humidity environment is rotten without causing product), the generation of Food Oxidation denaturalization phenomenon can be delayed, it is greatly prolonged the product shelf phase, simultaneously it can be avoided that the fragrance of content scatters and disappears and prevents the intrusion of outside bad smell; The resistance utilizing packaging film is moist, it is possible to prevent the phenomenon of product generation dehydration exsiccation, taste bad, will not damage packaging prototype because of product water suction, it is prevented that quantitatively goods generation natural wastage (weightlessness); Utilize packaging film hypotonicity, can prevent loss of aroma, and not absorption of residual residual air taste and off-taste, it is ensured that the integrity (this point is particularly important when packing low fat or high-protein food) of abnormal smells from the patient. The packaging film of the present invention at 100 DEG C, can bear the heating duration of 10 minutes, has flexibility good, and heat sealability is excellent, nonpoisonous and tasteless, and oil resistivity is good, the advantage of good corrosion resistance.The packaging film of the present invention is especially suitable for the packaging of fresh seafood, beef and dried tofu.
Accompanying drawing explanation
Fig. 1 is the structure chart of coextru-lamination barrier packaging film of the present invention.
In figure: 1-BOPET biaxial stretching polyester film; 2-APET photomask; 3-the oneth PE polyethylene film; 4-the oneth PET mylar; 5-the first EVOH barrier layer; 6-PVDC gas barrier film; 7-the second EVOH barrier layer; 8-the 2nd PET mylar; 9-the 2nd PE polyethylene film.
Detailed description of the invention
The preferred embodiment of the present invention is elaborated below according to accompanying drawing.
As it is shown in figure 1, coextru-lamination barrier packaging film of the present invention includes BOPET biaxial stretching polyester film 1, APET photomask the 2, the oneth PE polyethylene film the 3, the oneth PET mylar the 4, first EVOH barrier layer 5, PVDC gas barrier film the 6, second EVOH barrier layer the 7, the 2nd PET mylar 8 and the 2nd PE polyethylene film 9; Described BOPET biaxial stretching polyester film 1, APET photomask the 2, the oneth PE polyethylene film the 3, the oneth PET mylar the 4, first EVOH barrier layer 5, PVDC gas barrier film the 6, second EVOH barrier layer the 7, the 2nd PET mylar 8 and the 2nd PE polyethylene film 9 coextru-lamination from outside to inside constitute packaging film. On a described PET mylar 4 and the 2nd PET mylar 8, all processing has mesh. Described mesh be shaped as rhombus. The thickness of coextru-lamination barrier packaging film is 540 ~ 560 ��m. The thickness of PVDC gas barrier film is 70 ~ 90 ��m.
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, owing to PVDC has stronger shrinkage, thus also enhancing the ductility of packaging film by the present invention. In order to make packaging film have stronger barrier property and ductility, the present invention, except arranging EVOH barrier layer in the both sides of core structural layer PVDC gas barrier film, also add PET mylar. Furthermore present invention also adds BOPET biaxial stretching polyester film as printing basement membrane, it is simple to follow-up printing labeling. Finally present invention also adds photomask, for preventing article in packaging bag from occurring rotten because of reasons such as illumination. This packaging film is resistant to 100 DEG C of decocting in water, can not high temperature steaming. Its tensile property of this packaging film is better, is suitable to the packaging of large volume, can be used for striking out the mould of content shape, and not with other materials compound tense, deep drawn is up to 16cm; Compound CPP(cast polypropylene) time, it is possible to do the shallow stretching of 2cm.
Present embodiment is the exemplary illustration to this patent, does not limit its protection domain, and its local can also be changed by those skilled in the art, as long as no the spirit beyond this patent, all in the protection domain of this patent.

Claims (5)

1. coextru-lamination barrier packaging film, it is characterised in that: include BOPET biaxial stretching polyester film (1), APET photomask (2), a PE polyethylene film (3), a PET mylar (4), the first EVOH barrier layer (5), PVDC gas barrier film (6), the second EVOH barrier layer (7), the 2nd PET mylar (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 mylar (4), the first EVOH barrier layer (5), PVDC gas barrier film (6), the second EVOH barrier layer (7), the 2nd PET mylar (8) and the 2nd PE polyethylene film (9) coextru-lamination from outside to inside constitute packaging film.
2. coextru-lamination barrier packaging film according to claim 1, it is characterised in that: on a described PET mylar (4) and the 2nd PET mylar (8), all processing has mesh.
3. coextru-lamination barrier packaging film according to claim 2, it is characterised in that: described mesh be shaped as rhombus.
4. coextru-lamination barrier packaging film according to claim 3, it is characterised in that: the thickness of described coextru-lamination barrier packaging film is 540 ~ 560 ��m.
5. coextru-lamination barrier packaging film according to claim 4, it is characterised in that: the thickness of described PVDC gas barrier film is 70 ~ 90 ��m.
CN201410817531.XA 2014-12-25 2014-12-25 Coextru-lamination barrier packaging film Expired - Fee Related CN104494262B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410817531.XA CN104494262B (en) 2014-12-25 2014-12-25 Coextru-lamination barrier packaging film

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Application Number Priority Date Filing Date Title
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CN104494262B true CN104494262B (en) 2016-06-08

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Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104893090B (en) * 2015-06-18 2017-03-15 上海海洋大学 A kind of preparation method of food oxydating resistance packing film
CN107102384A (en) * 2017-04-24 2017-08-29 宁波东旭成新材料科技有限公司 A kind of quantum dot optical film
RU181417U1 (en) * 2018-04-09 2018-07-13 Анастасия Владиславна Масленникова Packing material

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1862299A1 (en) * 2006-06-02 2007-12-05 Wipak Walothen GmbH Cover composite film, method for its manufacture and application for a packaging unit
CN201296427Y (en) * 2008-12-03 2009-08-26 苏州市合兴食品有限公司 Condiment packaging bag
CN202862730U (en) * 2012-08-30 2013-04-10 江阴升辉包装材料有限公司 Multi-layer high-barrier co-extruded heat-shrinkable film
CN204354551U (en) * 2014-12-25 2015-05-27 哈尔滨隆华艺达包装制品有限公司 Coextru-lamination barrier packaging film

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100774389B1 (en) * 2005-11-11 2007-11-08 이생테크노팩 주식회사 A pouch structure for sterilization

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1862299A1 (en) * 2006-06-02 2007-12-05 Wipak Walothen GmbH Cover composite film, method for its manufacture and application for a packaging unit
CN201296427Y (en) * 2008-12-03 2009-08-26 苏州市合兴食品有限公司 Condiment packaging bag
CN202862730U (en) * 2012-08-30 2013-04-10 江阴升辉包装材料有限公司 Multi-layer high-barrier co-extruded heat-shrinkable film
CN204354551U (en) * 2014-12-25 2015-05-27 哈尔滨隆华艺达包装制品有限公司 Coextru-lamination barrier packaging film

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C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
PE01 Entry into force of the registration of the contract for pledge of patent right

Denomination of invention: Coextrusion-lamination obstructing packaging film

Effective date of registration: 20160809

Granted publication date: 20160608

Pledgee: Keli technology investment Company limited by guarantee in Heilongjiang Province

Pledgor: Harbin Longhua Yida Package Product Co.,Ltd.

Registration number: 2016230000016

PLDC Enforcement, change and cancellation of contracts on pledge of patent right or utility model
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20160608

Termination date: 20181225