CN104494262A - Coextrusion-lamination obstructing packaging film - Google Patents
Coextrusion-lamination obstructing packaging film Download PDFInfo
- Publication number
- CN104494262A CN104494262A CN201410817531.XA CN201410817531A CN104494262A CN 104494262 A CN104494262 A CN 104494262A CN 201410817531 A CN201410817531 A CN 201410817531A CN 104494262 A CN104494262 A CN 104494262A
- Authority
- CN
- China
- Prior art keywords
- film
- packaging
- barrier
- lamination
- pet polyester
- 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.)
- Granted
Links
- 229920006280 packaging film Polymers 0.000 title claims abstract description 49
- 239000012785 packaging film Substances 0.000 title claims abstract description 49
- 238000003475 lamination Methods 0.000 title claims abstract description 20
- 230000004888 barrier function Effects 0.000 claims abstract description 75
- 229920006267 polyester film Polymers 0.000 claims abstract description 37
- 239000004698 Polyethylene Substances 0.000 claims abstract description 36
- 229920000139 polyethylene terephthalate Polymers 0.000 claims abstract description 27
- 229920000219 Ethylene vinyl alcohol Polymers 0.000 claims abstract description 24
- UFRKOOWSQGXVKV-UHFFFAOYSA-N ethene;ethenol Chemical compound C=C.OC=C UFRKOOWSQGXVKV-UHFFFAOYSA-N 0.000 claims abstract description 24
- 239000004715 ethylene vinyl alcohol Substances 0.000 claims abstract description 24
- 229920001328 Polyvinylidene chloride Polymers 0.000 claims abstract description 21
- 239000005033 polyvinylidene chloride Substances 0.000 claims abstract description 21
- -1 polyethylene Polymers 0.000 claims abstract description 18
- 229920000573 polyethylene Polymers 0.000 claims abstract description 18
- 229920008790 Amorphous Polyethylene terephthalate Polymers 0.000 claims abstract description 9
- 238000004806 packaging method and process Methods 0.000 abstract description 9
- 235000014102 seafood Nutrition 0.000 abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 5
- 235000013527 bean curd Nutrition 0.000 abstract description 3
- 235000015278 beef Nutrition 0.000 abstract description 3
- 238000010521 absorption reaction Methods 0.000 abstract description 2
- 239000005022 packaging material Substances 0.000 abstract description 2
- 239000005020 polyethylene terephthalate Substances 0.000 abstract 4
- 229920002799 BoPET Polymers 0.000 abstract 3
- 230000035699 permeability Effects 0.000 abstract 1
- 238000001125 extrusion Methods 0.000 description 9
- 238000007639 printing Methods 0.000 description 6
- 210000002469 basement membrane Anatomy 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 238000005286 illumination Methods 0.000 description 3
- 238000002372 labelling Methods 0.000 description 3
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 2
- 239000005977 Ethylene Substances 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 2
- 239000005025 cast polypropylene Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 235000013305 food Nutrition 0.000 description 2
- 238000005213 imbibition Methods 0.000 description 2
- 229920001778 nylon Polymers 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000029087 digestion Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003205 fragrance Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 235000004213 low-fat Nutrition 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000009967 tasteless effect Effects 0.000 description 1
- 238000009461 vacuum packaging Methods 0.000 description 1
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 shape; Layered products comprising a layer 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 shape; Layered products comprising a layer 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 shape; Layered products comprising a layer 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Laminated Bodies (AREA)
Abstract
The invention discloses a coextrusion-lamination obstructing packaging film and belongs to the technical field of packaging materials. According to the coextrusion-lamination obstructing packaging film, the problems that an intermediate layer of an existing coextrusion film is relatively high in water absorption, the permeability resistance of barrier layers is reduced, the effective expiration date of a product is short, and meanwhile, due to structure arrangement of the intermediate layer PA of the coextrusion film and the single barrier layers at two sides of the intermediate layer, high barrier property and high coextrusion malleability property of the packaging film can not be simultaneously realized are solved. The packaging film comprises a BOPET (biaxially-oriented polyethylene terephthalate) film, an APET shading film, a first PE polyethylene film, a first PET polyester film, a first EVOH barrier layer, a PVDC gas barrier film, a second EVOH barrier layer, a second PET polyester film and a second PE polyethylene film, wherein the BOPET film, the APET shading film, the first PE polyethylene film, the first PET polyester film, the first EVOH barrier layer, the PVDC gas barrier film, the second EVOH barrier layer, the second PET polyester film and the second PE polyethylene film are co-extruded and compounded from outside to inside to form the packaging film. The packaging film disclosed by the invention is especially suitable for packaging fresh seafood, beef and dried tofu.
Description
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 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 object of this invention 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 present invention in order to solve the problems of the technologies described above taked technical scheme is:
Coextru-lamination barrier packaging film of the present invention, 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 present invention, 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 present invention, except arranging EVOH barrier layer in the both sides of core structural layer PVDC gas barrier film, also add PET polyester film.Moreover present invention also adds BOPET biaxial stretching polyester film as printing basement membrane, be convenient to follow-up printing labeling.Finally present invention also adds photomask, occurring 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 present invention compared with prior art has following effect: 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, 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 present invention, except arranging EVOH barrier layer in the both sides of core structural layer PVDC gas barrier film, also add PET polyester film.Moreover present invention also adds BOPET biaxial stretching polyester film as printing basement membrane, be convenient to follow-up printing labeling.Finally present invention also adds photomask, occurring 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 invention 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 invention 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 of the present invention.
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 preferred embodiment of the present invention with reference to the accompanying drawings below.
As shown in Figure 1, coextru-lamination barrier packaging film of the present invention 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 present invention, 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 present invention, except arranging EVOH barrier layer in the both sides of core structural layer PVDC gas barrier film, also add PET polyester film.Moreover present invention also adds BOPET biaxial stretching polyester film as printing basement membrane, be convenient to follow-up printing labeling.Finally present invention also adds photomask, occurring 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 |
|---|---|---|---|
| CN201410817531.XA CN104494262B (en) | 2014-12-25 | 2014-12-25 | Coextru-lamination barrier packaging film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410817531.XA CN104494262B (en) | 2014-12-25 | 2014-12-25 | Coextru-lamination barrier packaging film |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104494262A true CN104494262A (en) | 2015-04-08 |
| CN104494262B CN104494262B (en) | 2016-06-08 |
Family
ID=52935754
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410817531.XA Expired - Fee Related CN104494262B (en) | 2014-12-25 | 2014-12-25 | Coextru-lamination barrier packaging film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104494262B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104893090A (en) * | 2015-06-18 | 2015-09-09 | 上海海洋大学 | Antioxidant packaging film of food and preparation method of packaging 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 (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20050116787A (en) * | 2005-11-11 | 2005-12-13 | 주식회사 이생 | A pouch structure for sterilization |
| 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 bags |
| 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 |
-
2014
- 2014-12-25 CN CN201410817531.XA patent/CN104494262B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20050116787A (en) * | 2005-11-11 | 2005-12-13 | 주식회사 이생 | A pouch structure for sterilization |
| 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 bags |
| 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 |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104893090A (en) * | 2015-06-18 | 2015-09-09 | 上海海洋大学 | Antioxidant packaging film of food and preparation method of packaging film |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104494262B (en) | 2016-06-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP4980426B2 (en) | Multi-layer sheet type or tube type food casing or food film | |
| RS52680B (en) | Multilayered two-dimensional or tubular food casing or film | |
| CN204354551U (en) | Coextru-lamination barrier packaging film | |
| CN104494262A (en) | Coextrusion-lamination obstructing packaging film | |
| CN101525071A (en) | Seven-layer coextrusion composite high-separation packaging film | |
| CN103381913A (en) | Perfume packaging bag | |
| CN103612838A (en) | Waterproof breathable packing container | |
| CN103802426A (en) | Explosion-proof easy-to-open sealing cover film for microwave-heated plastic food box | |
| CN204936398U (en) | A kind of resistance to boiling delustring composite package film | |
| CN204659084U (en) | A kind of aluminium foil bag of novel high-barrier digestion resistant | |
| CN101870389A (en) | Air-permeable and moldable coextruded film | |
| CN203401773U (en) | Easily removable film | |
| CN107010311B (en) | Plastic high-barrier composite woven bag and preparation method thereof | |
| CN203818658U (en) | Dry barrier packaging film | |
| CN204354550U (en) | Dry type compound boiling packaging material | |
| ATE477112T1 (en) | MULTI-LAYER FOOD COVER WITH TWO OXYGEN BARRIER LAYERS | |
| CN201737296U (en) | Permeable coextrusion film capable of being thermally molded | |
| CN104786626A (en) | Method for manufacturing high-barrier pesticide-level composite packaging film | |
| CN202986269U (en) | Environment-friendly modified polyester polyvinyl chloride, polyethylene and polyvinylidene chloride solid medicinal compound hard piece | |
| CN204712569U (en) | Antibacterial fresh-keeping packaging composite | |
| CN204701218U (en) | A kind of high-barrier aluminum foil package material of acid-alkali-corrosive-resisting | |
| CN205970259U (en) | Fruit juice packaging film | |
| CN206953732U (en) | A kind of nylon shrink film for cold fresh packaging | |
| CN204367519U (en) | High resistant can stretch hot paste composite membrane | |
| CN203667199U (en) | Gas-permeable membrane cover |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| 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 |
Granted publication date: 20160608 Termination date: 20181225 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |