CN109605891A - A kind of food packaging antifog film - Google Patents
A kind of food packaging antifog film Download PDFInfo
- Publication number
- CN109605891A CN109605891A CN201811637476.0A CN201811637476A CN109605891A CN 109605891 A CN109605891 A CN 109605891A CN 201811637476 A CN201811637476 A CN 201811637476A CN 109605891 A CN109605891 A CN 109605891A
- Authority
- CN
- China
- Prior art keywords
- layer
- antifog
- polyethylene
- nylon
- food packaging
- 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.)
- Pending
Links
- 238000004806 packaging method and process Methods 0.000 title claims abstract description 22
- 235000013305 food Nutrition 0.000 title claims abstract description 21
- 239000004698 Polyethylene Substances 0.000 claims abstract description 111
- 229920000573 polyethylene Polymers 0.000 claims abstract description 70
- -1 polyethylene Polymers 0.000 claims abstract description 47
- 229920001778 nylon Polymers 0.000 claims abstract description 45
- 239000004677 Nylon Substances 0.000 claims abstract description 40
- 239000011347 resin Substances 0.000 claims abstract description 28
- 229920005989 resin Polymers 0.000 claims abstract description 28
- 229920000219 Ethylene vinyl alcohol Polymers 0.000 claims abstract description 26
- 239000011230 binding agent Substances 0.000 claims abstract description 24
- 239000004715 ethylene vinyl alcohol Substances 0.000 claims abstract description 13
- 230000004888 barrier function Effects 0.000 claims abstract description 3
- 229920001684 low density polyethylene Polymers 0.000 claims description 27
- 239000004702 low-density polyethylene Substances 0.000 claims description 27
- 239000000203 mixture Substances 0.000 claims description 16
- 229920000092 linear low density polyethylene Polymers 0.000 claims description 9
- 239000004707 linear low-density polyethylene Substances 0.000 claims description 9
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 7
- 238000012986 modification Methods 0.000 claims description 5
- 230000004048 modification Effects 0.000 claims description 5
- 238000010276 construction Methods 0.000 claims description 4
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims 1
- 239000005977 Ethylene Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 6
- 230000006641 stabilisation Effects 0.000 abstract description 3
- 238000011105 stabilization Methods 0.000 abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 239000003242 anti bacterial agent Substances 0.000 description 3
- 229940088710 antibiotic agent Drugs 0.000 description 3
- 235000013372 meat Nutrition 0.000 description 3
- 150000001336 alkenes Chemical class 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000003595 mist Substances 0.000 description 2
- 239000004687 Nylon copolymer Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000009738 saturating Methods 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 230000003442 weekly effect Effects 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
- B32B27/34—Layered products comprising a layer of synthetic resin comprising polyamides
-
- 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
- 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
- B32B2307/00—Properties of the layers or laminate
- B32B2307/40—Properties of the layers or laminate having particular optical properties
- B32B2307/412—Transparent
-
- 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
- B32B2553/00—Packaging equipment or accessories not otherwise provided for
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Wrappers (AREA)
- Laminated Bodies (AREA)
Abstract
The invention discloses a kind of food packaging antifog film, the antifog film is divided into outer layer, middle layer and internal layer from outside to inside, and the outer layer is made of the stacking of 2-6 layer film, and the middle layer is barrier layer, and the internal layer is made of the stacking of 2-6 layer film.The present invention is by using multilayered structure, good antifogging effect and stabilization, it can be cold and hot antifog, using transparent polyethylene (PE) layer, binder resin (Tie), nylon (PA) layer and ethylene-vinyl alcohol copolymer (EVOH) layer, so that the transparency of antifog film of the invention is high, with good antipollution effect, long shelf-life is used.
Description
Technical field
The present invention relates to co-extrusion technical field of membrane, in particular to a kind of food packaging antifog film.
Background technique
With the development of world economy, people's lives tempo increase, shopping-time is short, will generally carry out one weekly and arrive
Big buying twice, and due to time and the division of labor in society are meticulous typically purchases veterinary antibiotics, sushi, cold in supermarket
Fresh meat etc., these food are then refrigerated and are sold into supermarket first by fresh clean, processing, packaging by food provider.By
In fresh commodity such as veterinary antibiotics, cold fresh meat classes during transport, refrigeration and sale, temperature inside and outside packaging bag and
The temperature difference changes repeatedly, and these fresh commodity contained humidities are larger, if do not use antifog film, easily in bag generate mist and
Steam.Water mist can be generated first, so that consumer is can't see the fresh commodity in bag, then these water mists produce biggish water again
Drop, and these water droplets can make these fresh commodity rotten quickly after contacting the fresh commodity such as veterinary antibiotics or cold fresh meat class
Lose, this objectively require packaging transparency to get well, it is anti-fog properties to get well, illustrative will be got well, the shelf-life to grow and safety
It is better.Now in the market, many antifog films can not meet these requirements simultaneously.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of food packaging antifog films that can be used for food packaging.
In order to solve the above-mentioned technical problem, the technical solution of the present invention is as follows:
A kind of food packaging antifog film, the antifog film are divided into outer layer, middle layer and internal layer from outside to inside, the outer layer by
2-6 layer film stacking composition, the middle layer are barrier layer, and the internal layer is made of the stacking of 2-6 layer film.
Preferably, the outer layer is formed by nylon (PA) layer or polyethylene (PE) layer stackup, nylon (PA) layer or poly-
Ethylene (PE) layer passes through binder resin (Tie) between layers and is attached.
Preferably, the middle layer is at least one of nylon (PA) or ethylene-vinyl alcohol copolymer (EVOH).
Preferably, the internal layer is formed by polyethylene (PE) layer stackup.
Preferably, nylon (PA) layer is the mixture of homopolymerization nylon and amorphous nylons copolymer, wherein the nothing
Sizing nylon copolymer accounts for the 5-30% of the mixture；Polyethylene (PE) layer is low density polyethylene (LDPE) and linea low density
The mixture of polyethylene, wherein the weight of low density polyethylene (LDPE) and linear low density polyethylene is 1:1-1:2.
Preferably, nylon (PA) layer is homopolymerization nylon；Polyethylene (PE) layer is for low density polyethylene (LDPE) and linearly
The weight of the mixture of low density polyethylene (LDPE), the low density polyethylene (LDPE) and linear low density polyethylene is 1:1-1:2.
Preferably, polyethylene (PE) layer of innermost layer is the first antifog modified poly ethylene in the stepped construction of the internal layer
(PE) layer, first antifog modified poly ethylene (PE) layer contain modified antifog polyvinyl resin and POP resin.
Preferably, polyethylene (PE) layer of secondary internal layer is the second antifog modified poly ethylene in the stepped construction of the internal layer
(PE) layer contains modified antifog polyvinyl resin in second antifog modified poly ethylene (PE) layer.
Preferably, the structure composition of the antifog film is from outside to inside successively are as follows: nylon (PA) layer/binder resin (Tie)/poly-
Ethylene (PE) layer/binder resin (Tie)/nylon (PA) layer/ethylene-vinyl alcohol copolymer (EVOH)/nylon (PA) layer/bonding tree
Nine layers of structure of rouge (Tie)/first antifog modified poly ethylene (PE) layer, the antifog film is with a thickness of 50-150 μm.
Preferably, the structure composition of the antifog film is from outside to inside successively are as follows: and polyethylene (PE) layer/binder resin (Tie)/
Nylon (PA) layer/ethylene-vinyl alcohol copolymer (the EVOH)/poly- second of nylon (PA) layer/binder resin (Tie)/second antifog modification
Nine layers of structure of alkene (PE) layer/binder resin (Tie)/first antifog modified poly ethylene (PE) layer, the antifog film is with a thickness of 50-
150μm。
By adopting the above technical scheme, can be cold and hot antifog by using multilayered structure, good antifogging effect and stabilization, it uses
Transparent polyethylene (PE) layer, binder resin (Tie), nylon (PA) layer and ethylene-vinyl alcohol copolymer (EVOH) layer, so that this
The transparency of the antifog film of invention is high, has good antipollution effect, uses long shelf-life.
Detailed description of the invention
Fig. 1 is a kind of schematic diagram of structure of the invention；
Fig. 2 is the schematic diagram of another structure of the invention.
In figure, 1- outer layer, the middle layer 2-, 3- internal layer.
Specific embodiment
Specific embodiments of the present invention will be further explained with reference to the accompanying drawing.It should be noted that for
The explanation of these embodiments is used to help understand the present invention, but and does not constitute a limitation of the invention.In addition, disclosed below
The each embodiment of the present invention involved in technical characteristic can be combined with each other as long as they do not conflict with each other.
Embodiment 1
As shown in Figure 1, a kind of food packaging antifog film, including outer layer 1, middle layer 2 and internal layer 3；The outer layer 1 is by nylon
(PA) layer or polyethylene (PE) layer stackup form, and nylon (PA) layer is the mixing of homopolymerization nylon and amorphous nylons copolymer
Object, wherein the amorphous nylons copolymer accounts for the 5-30% of the mixture,；Polyethylene (PE) layer is low density polyethylene
The mixture of alkene and linear low density polyethylene, wherein the weight of low density polyethylene (LDPE) and linear low density polyethylene
For 1:1-1:2；Nylon (PA) layer or polyethylene (PE) layer pass through binder resin (Tie) between layers and are attached；
The middle layer 2 is at least one of nylon (PA) or ethylene-vinyl alcohol copolymer (EVOH)；
The internal layer 3 is formed by polyethylene (PE) layer stackup, wherein polyethylene (PE) layer of innermost layer is first antifog to change
Property polyethylene (PE) layer, first antifog modified poly ethylene (PE) layer contains modified antifog polyvinyl resin and POP resin；This
The specific structure of the antifog film of invention forms from outside to inside successively are as follows: nylon (PA) layer/binder resin (Tie)/polyethylene (PE)
Layer/binder resin (Tie)/nylon (PA) layer/ethylene-vinyl alcohol copolymer (EVOH)/nylon (PA) layer/binder resin (Tie)/
Nine layers of structure of the first antifog modified poly ethylene (PE) layer, the antifog film is with a thickness of 50-150 μm.
Embodiment 2
As shown in Fig. 2, a kind of food packaging antifog film, including outer layer 1, middle layer 2 and internal layer 3；
The outer layer 1 is formed by nylon (PA) layer stackup, and nylon (PA) layer is homopolymerization nylon；The polyethylene (PE)
Layer is the mixture of low density polyethylene (LDPE) and linear low density polyethylene, the low density polyethylene (LDPE) and linear low density polyethylene
Weight be 1:1-1:2；Nylon (PA) layer or polyethylene (PE) layer pass through binder resin (Tie) between layers
It is attached；
The middle layer 2 is at least one of nylon (PA) or ethylene-vinyl alcohol copolymer (EVOH)；
The internal layer 3 is formed by polyethylene (PE) layer stackup, wherein polyethylene (PE) layer of innermost layer is first antifog to change
Property polyethylene (PE) layer, first antifog modified poly ethylene (PE) layer contains modified antifog polyvinyl resin and POP resin, secondary
Polyethylene (PE) layer of internal layer is the second antifog modified poly ethylene (PE) layer, is contained in second antifog modified poly ethylene (PE) layer
There is modified antifog polyvinyl resin；The specific structure of antifog film of the invention forms from outside to inside successively are as follows: and polyethylene (PE) layer/
Binder resin (Tie)/nylon (PA) layer/ethylene-vinyl alcohol copolymer (EVOH)/nylon (PA) layer/binder resin (Tie)/the
Nine layers of structure of two antifog modified poly ethylene (PE) layer/binder resin (Tie)/first antifog modified poly ethylene (PE) layers, it is described
Antifog film is with a thickness of 50-150 μm.
Using the above structure, it is tested at 135 DEG C, the heat seal strength of the antifog film is 30N/15mm, and oxygen is saturating
Excessive (OTR)≤5cc*24h.Antifog film of the invention uses multilayered structure, good antifogging effect and stabilization, can be cold and hot antifog,
Using transparent polyethylene (PE) layer, binder resin (Tie) nylon (PA) layer and ethylene-vinyl alcohol copolymer (EVOH)
Layer has good antipollution effect, uses long shelf-life so that the transparency of antifog film of the invention is high.
In conjunction with attached drawing, the embodiments of the present invention are described in detail above, but the present invention is not limited to described implementations
Mode.For a person skilled in the art, in the case where not departing from the principle of the invention and spirit, to these embodiments
A variety of change, modification, replacement and modification are carried out, are still fallen in protection scope of the present invention.
Claims (10)
1. a kind of food packaging antifog film, it is characterised in that: the antifog film be divided into from outside to inside outer layer (1), middle layer (2) and
Internal layer (3), the outer layer (1) are made of the stacking of 2-6 layer film, and the middle layer (2) is barrier layer, and the internal layer (3) is by 2-6 layers
Film layer is stacked.
2. food packaging antifog film according to claim 1, it is characterised in that: the outer layer (1) is by nylon (PA) layer
Or polyethylene (PE) layer stackup forms, nylon (PA) layer or polyethylene (PE) layer pass through binder resin between layers
(Tie) it is attached.
3. food packaging antifog film according to claim 1, it is characterised in that: the middle layer (2) be nylon (PA) or
At least one of ethylene-vinyl alcohol copolymer (EVOH).
4. food packaging antifog film according to claim 1, it is characterised in that: the internal layer (3) is by polyethylene (PE)
Layer stackup forms.
5. food packaging antifog film according to claim 2, it is characterised in that: nylon (PA) layer is homopolymerization nylon
With the mixture of amorphous nylons copolymer, wherein the amorphous nylons copolymer accounts for the 5-30% of the mixture；It is described
Polyethylene (PE) layer is the mixture of low density polyethylene (LDPE) and linear low density polyethylene, wherein low density polyethylene (LDPE) and linear
The weight of low density polyethylene (LDPE) is 1:1-1:2.
6. food packaging antifog film according to claim 2, it is characterised in that: nylon (PA) layer is homopolymerization Buddhist nun
Dragon；Polyethylene (PE) layer is the mixture of low density polyethylene (LDPE) and linear low density polyethylene, the low density polyethylene (LDPE)
Weight with linear low density polyethylene is 1:1-1:2.
7. food packaging antifog film according to claim 4, it is characterised in that: in the stepped construction of the internal layer (3)
Polyethylene (PE) layer of innermost layer is the first antifog modified poly ethylene (PE) layer, and first antifog modified poly ethylene (PE) layer contains
There are modified antifog polyvinyl resin and POP resin.
8. food packaging antifog film according to claim 4, it is characterised in that: in the stepped construction of the internal layer (3)
Polyethylene (PE) layer of secondary internal layer is the second antifog modified poly ethylene (PE) layer, in second antifog modified poly ethylene (PE) layer
Contain the antifog polyvinyl resin of modification.
9. food packaging antifog film according to claim 1, it is characterised in that: the structure composition of the antifog film is from outer
To it is interior successively are as follows: nylon (PA) layer/binder resin (Tie)/polyethylene (PE) layer/binder resin (Tie)/nylon (PA) layer/second
Nine layers of alkene-ethenol copolymer (EVOH)/nylon (PA) layer/binder resin (Tie)/first antifog modified poly ethylene (PE) layer
Structure, the antifog film is with a thickness of 50-150 μm.
10. food packaging antifog film according to claim 1, it is characterised in that: the structure composition of the antifog film from
Outside successively in are as follows: polyethylene (PE) layer/binder resin (Tie)/nylon (PA) layer/ethylene-vinyl alcohol copolymer (EVOH)/Buddhist nun
Imperial (PA) layer/binder resin (Tie)/second antifog modified poly ethylene (PE) layer/binder resin (Tie)/first antifog modification is poly-
Nine layers of structure of ethylene (PE) layer, the antifog film is with a thickness of 50-150 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811637476.0A CN109605891A (en) | 2018-12-29 | 2018-12-29 | A kind of food packaging antifog film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811637476.0A CN109605891A (en) | 2018-12-29 | 2018-12-29 | A kind of food packaging antifog film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109605891A true CN109605891A (en) | 2019-04-12 |
Family
ID=66015436
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811637476.0A Pending CN109605891A (en) | 2018-12-29 | 2018-12-29 | A kind of food packaging antifog film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109605891A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110982158A (en) * | 2019-10-23 | 2020-04-10 | 江阴市德惠热收缩包装材料有限公司 | Membrane and method of making the same |
| US20230347630A1 (en) * | 2020-04-07 | 2023-11-02 | Sofresh, Inc. | Laminated film materials and processes for manufacturing thereof and uses thereof |
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|---|---|---|---|---|
| CN202283804U (en) * | 2011-10-24 | 2012-06-27 | 上海唐科新型包装材料有限公司 | Anti-fog barrier film |
| CN104476753A (en) * | 2014-11-25 | 2015-04-01 | 朝阳佛瑞达科技有限公司 | Multilayer co-extrusion high-barrier film and preparation method thereof |
| CN107856375A (en) * | 2017-10-25 | 2018-03-30 | 无锡市太平洋新材料股份有限公司 | A kind of boiling film for packaging for foodstuff |
| CN107891643A (en) * | 2017-10-25 | 2018-04-10 | 无锡市太平洋新材料股份有限公司 | A kind of easily tore film for packaging for foodstuff |
| CN207345171U (en) * | 2017-10-19 | 2018-05-11 | 江阴升辉包装材料有限公司 | A kind of heat shrink films suitable for the automatic fast package of production line |
| CN108248164A (en) * | 2018-01-12 | 2018-07-06 | 朝阳佛瑞达科技有限公司 | A kind of drinking water Multilayer co-extrusion packaging bag film and its production method |
| CN108263062A (en) * | 2018-03-15 | 2018-07-10 | 南通环球塑料工程有限公司 | A kind of multilayer shrinks antifog epiphragma and preparation method thereof |
-
2018
- 2018-12-29 CN CN201811637476.0A patent/CN109605891A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202283804U (en) * | 2011-10-24 | 2012-06-27 | 上海唐科新型包装材料有限公司 | Anti-fog barrier film |
| CN104476753A (en) * | 2014-11-25 | 2015-04-01 | 朝阳佛瑞达科技有限公司 | Multilayer co-extrusion high-barrier film and preparation method thereof |
| CN207345171U (en) * | 2017-10-19 | 2018-05-11 | 江阴升辉包装材料有限公司 | A kind of heat shrink films suitable for the automatic fast package of production line |
| CN107856375A (en) * | 2017-10-25 | 2018-03-30 | 无锡市太平洋新材料股份有限公司 | A kind of boiling film for packaging for foodstuff |
| CN107891643A (en) * | 2017-10-25 | 2018-04-10 | 无锡市太平洋新材料股份有限公司 | A kind of easily tore film for packaging for foodstuff |
| CN108248164A (en) * | 2018-01-12 | 2018-07-06 | 朝阳佛瑞达科技有限公司 | A kind of drinking water Multilayer co-extrusion packaging bag film and its production method |
| CN108263062A (en) * | 2018-03-15 | 2018-07-10 | 南通环球塑料工程有限公司 | A kind of multilayer shrinks antifog epiphragma and preparation method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110982158A (en) * | 2019-10-23 | 2020-04-10 | 江阴市德惠热收缩包装材料有限公司 | Membrane and method of making the same |
| US20230347630A1 (en) * | 2020-04-07 | 2023-11-02 | Sofresh, Inc. | Laminated film materials and processes for manufacturing thereof and uses thereof |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20190412 |