CN202283804U - Anti-fog barrier film - Google Patents
Anti-fog barrier film Download PDFInfo
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- CN202283804U CN202283804U CN2011204089590U CN201120408959U CN202283804U CN 202283804 U CN202283804 U CN 202283804U CN 2011204089590 U CN2011204089590 U CN 2011204089590U CN 201120408959 U CN201120408959 U CN 201120408959U CN 202283804 U CN202283804 U CN 202283804U
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- fog
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- barrier layer
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- 230000004888 barrier function Effects 0.000 title claims abstract description 105
- 239000010410 layer Substances 0.000 claims abstract description 224
- 239000012790 adhesive layer Substances 0.000 claims abstract description 30
- 239000012528 membrane Substances 0.000 claims description 39
- -1 polyethylene Polymers 0.000 claims description 36
- 239000004698 Polyethylene Substances 0.000 claims description 33
- 229920000573 polyethylene Polymers 0.000 claims description 33
- 239000004952 Polyamide Substances 0.000 claims description 26
- 229920002647 polyamide Polymers 0.000 claims description 26
- 229920000219 Ethylene vinyl alcohol Polymers 0.000 claims description 24
- 239000005038 ethylene vinyl acetate Substances 0.000 claims description 3
- 239000004715 ethylene vinyl alcohol Substances 0.000 claims description 3
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 claims description 3
- RZXDTJIXPSCHCI-UHFFFAOYSA-N hexa-1,5-diene-2,5-diol Chemical compound OC(=C)CCC(O)=C RZXDTJIXPSCHCI-UHFFFAOYSA-N 0.000 claims description 2
- 229920000642 polymer Polymers 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 10
- 239000003795 chemical substances by application Substances 0.000 abstract 1
- 230000009471 action Effects 0.000 description 20
- 229920005989 resin Polymers 0.000 description 19
- 239000011347 resin Substances 0.000 description 19
- 230000002688 persistence Effects 0.000 description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 5
- 229910052760 oxygen Inorganic materials 0.000 description 5
- 239000001301 oxygen Substances 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 150000001875 compounds Chemical class 0.000 description 4
- 238000012856 packing Methods 0.000 description 3
- 239000004677 Nylon Substances 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000002045 lasting effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000005012 migration Effects 0.000 description 2
- 238000013508 migration Methods 0.000 description 2
- 229920001778 nylon Polymers 0.000 description 2
- 239000002985 plastic film Substances 0.000 description 2
- 229920006255 plastic film Polymers 0.000 description 2
- 229920013716 polyethylene resin Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 229920000915 polyvinyl chloride Polymers 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- UBAZGMLMVVQSCD-UHFFFAOYSA-N carbon dioxide;molecular oxygen Chemical compound O=O.O=C=O UBAZGMLMVVQSCD-UHFFFAOYSA-N 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 238000003851 corona treatment Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 238000007306 functionalization reaction Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000003755 preservative agent Substances 0.000 description 1
- 230000002335 preservative effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 150000003384 small molecules Chemical class 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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Abstract
The utility model provides an anti-fog barrier film, which comprises a first anti-fog layer, a second anti-fog layer compounded to the first anti-fog layer, a first adhesive layer compounded to the second anti-fog layer, a first barrier layer compounded to the first adhesive layer, a second barrier layer compounded to the first barrier layer, a third barrier layer compounded to the second barrier layer, a second adhesive layer compounded to the third barrier layer, a third anti-fog layer compounded to the second adhesive layer, and a fourth anti-fog layer compounded to the third anti-fog layer. The anti-fog layers are arranged on a secondary inner layer and a secondary external layer of the anti-fog barrier film, and the anti-fog layers on the outermost layer and the innermost layer continuously have the anti-fog effect under the condition that an antifogging agent is migrated and loses effectiveness, so that the anti-fog barrier film has high anti-fog durability and high barrier performance.
Description
Technical field
The utility model belongs to the functional membrane technical field, relates in particular to a kind of antifog Obstruct membrane.
Background technology
Along with the chemical industry development of technology, the functionalization development trend of plastic film is day by day obvious, and wherein, the high-barrier plastic film is one of function film at present with fastest developing speed.High-resistant diaphragm is meant the protective packing content, avoids small-molecule substances such as pollutant and oxygen, steam, liquid and smell to infiltrate, and also can prevent the packing film that pack content is oozed out simultaneously.The high barrier of high-resistant diaphragm is meant under 23 ℃, the standard state of 65% relative humidity, the transit dose＜5ml/m of oxygen
2Below the day, the transit dose＜2g/m of water vapour
2D.
High-resistant diaphragm is used for field of food such as freezing, fresh-keeping more, can prolong the shelf-life of pack content.But; When adopting the high-resistant diaphragm packing; When having the cold and hot temperature difference, can in high-resistant diaphragm, form mist layer even droplet after the water evaporates condensation in the pack content, not only influence visual effect; And might cause pack content to damage, thereby lose the effect of longer shelf-life of high-resistant diaphragm.Therefore, the high-resistant diaphragm that has an anti-fog function becomes one of research focus.
Application number is that the Chinese patent document of 200920234937.X discloses a kind of polypropylene high-barrier antifog film, and is compound successively integrally formed by hot sealing layer, high-barrier nylon layer, sandwich layer, high-barrier nylon layer, antifog pretreatment layer and anti-fog layer.This polypropylene high-barrier antifog film has certain anti-fog effect, but its anti-fog layer is positioned at outermost layer, loses anti-fog effect thereby antifoggant wherein is prone to take place migration, and antifog persistence is relatively poor.
The utility model content
In view of this, the technical problem that the utility model will solve is to provide a kind of antifog Obstruct membrane, and said antifog Obstruct membrane has good antifog persistence and barrier property.
The utility model provides a kind of antifog Obstruct membrane, comprising:
First anti-fog layer;
Be compounded in second anti-fog layer on said first anti-fog layer;
Be compounded in first adhesive layer on said second anti-fog layer;
Be compounded in first barrier layer on said first adhesive layer;
Be compounded in second barrier layer on said first barrier layer;
Be compounded in the 3rd barrier layer on said second barrier layer;
Be compounded in second adhesive layer on said the 3rd barrier layer;
Be compounded in the 3rd anti-fog layer on said second adhesive layer;
Be compounded in the 4th anti-fog layer on said the 3rd anti-fog layer.
Preferably, said first anti-fog layer is the first polyethylene anti-fog layer.
Preferably, said second anti-fog layer is the second polyethylene anti-fog layer.
Preferably, said first barrier layer is the first polyamide barrier layer or the first ethylene-vinyl alcohol copolymer barrier layer.
Preferably, said second barrier layer is the second polyamide barrier layer or the second ethylene-vinyl alcohol polymer barrier layer.
Preferably, said the 3rd barrier layer is the 3rd polyamide barrier layer or the triethylene-ethenol copolymer barrier layer.
Preferably, said the 3rd anti-fog layer is the 3rd polyethylene anti-fog layer.
Preferably, said the 4th anti-fog layer is the 4th polyethylene anti-fog layer or the 4th ethylene-vinyl acetate copolymer anti-fog layer.
Preferably, the thickness of said antifog Obstruct membrane is 25 μ m～250 μ m.
Compared with prior art, the antifog Obstruct membrane that provides of the utility model is made up of the first mutually compound successively anti-fog layer, second anti-fog layer, first adhesive layer, first barrier layer, second barrier layer, the 3rd barrier layer, second adhesive layer, the 3rd anti-fog layer and the 4th anti-fog layer.In the antifog Obstruct membrane that the utility model provides, said first anti-fog layer and said the 4th anti-fog layer are respectively outermost layer and innermost layer, have the effect of anti-fog, anti-droplet, raising Film Optics performance; Said second anti-fog layer and said the 3rd anti-fog layer are respectively time outer and inferior internal layer; When first anti-fog layer of outermost layer and innermost layer and the 4th anti-fog layer lost efficacy owing to the migration of antifoggant; Inferior skin can be brought into play antifogging action with second anti-fog layer and the 3rd anti-fog layer of time internal layer, thereby makes said antifog Obstruct membrane have lasting anti-fog function; Said first adhesive layer and said second adhesive layer are brought into play cementation respectively, increase the compatibility between second anti-fog layer and first barrier layer, the 3rd barrier layer and the 3rd anti-fog layer; Said first barrier layer, second barrier layer and the 3rd barrier layer have good iris action, and materials such as steam, oxygen, carbon dioxide are intercepted, and play the effect that extends the shelf life.The utility model has increased anti-fog layer at the inferior internal layer of antifog Obstruct membrane respectively with time skin; Anti-fog layer at outermost layer and innermost layer moves continuation performance antifogging action under the situation about losing efficacy owing to antifoggant; It not only has good antifog persistence, and has good barrier performance.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiment of the utility model, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
The structural representation of the antifog Obstruct membrane that Fig. 1 provides for the utility model embodiment.
The specific embodiment
In order to make those skilled in the art understand the technical scheme of the utility model better; Below in conjunction with the accompanying drawing and the specific embodiment the utility model is carried out clear, intactly description; Obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
The utility model provides a kind of antifog Obstruct membrane, comprising:
First anti-fog layer;
Be compounded in second anti-fog layer on said first anti-fog layer;
Be compounded in first adhesive layer on said second anti-fog layer;
Be compounded in first barrier layer on said first adhesive layer;
Be compounded in second barrier layer on said first barrier layer;
Be compounded in the 3rd barrier layer on said second barrier layer;
Be compounded in second adhesive layer on said the 3rd barrier layer;
Be compounded in the 3rd anti-fog layer on said second adhesive layer;
Be compounded in the 4th anti-fog layer on said the 3rd anti-fog layer.
The antifog Obstruct membrane that the utility model provides is made up of the first mutually compound successively anti-fog layer, second anti-fog layer, first adhesive layer, first barrier layer, second barrier layer, the 3rd barrier layer, second adhesive layer, the 3rd anti-fog layer and the 4th anti-fog layer; The utility model has increased anti-fog layer at the inferior internal layer of antifog Obstruct membrane respectively with time skin; Anti-fog layer at outermost layer and innermost layer moves continuation performance antifogging action under the situation about losing efficacy owing to antifoggant; It not only has good antifog persistence, and has good barrier performance.
Referring to Fig. 1, the structural representation of the antifog Obstruct membrane that Fig. 1 provides for the utility model embodiment, wherein; 1 is the first polyethylene anti-fog layer, and 2 is the second polyethylene anti-fog layer, and 3 is first adhesive layer; 4 is the first polyamide barrier layer, and 5 is the second ethylene-vinyl alcohol copolymer barrier layer, and 6 is the 3rd polyamide barrier layer; 7 is second adhesive layer, and 8 is the 3rd polyethylene anti-fog layer, and 9 is the 4th polyethylene anti-fog layer.
The first polyethylene anti-fog layer 1 is the outermost layer of said antifog Obstruct membrane, and the surface has the effect of anti-fog, anti-droplet, raising Film Optics performance through corona treatment.In the utility model, the first polyethylene anti-fog layer 1 is mainly formed by polyethylene (PE) resin, not only can improve the optical property of film, and mechanical property that can enhancement film.In order to make polyethylene film have anti-fog function; Be added with antifoggant in the said first polyethylene anti-fog layer; Antifoggant is evenly separated out on the film top layer and is formed the layer that one deck mainly is made up of at least a hydrophilic resin, makes steam can not condense in the film top layer, thereby plays antifog effect.In the present embodiment, the addition of said antifoggant is preferably 0.5%～1%.In other embodiments, first anti-fog layer 1 can be formed by other resins, can play antifogging action as long as be added with antifoggant.
The second polyethylene anti-fog layer 2 is compounded on the first polyethylene anti-fog layer 1, has antifogging action.The second polyethylene anti-fog layer 2 is mainly formed by polyethylene (PE) resin, and has added antifoggant and played antifogging action, and the additive of said antifoggant is preferably 0.5%～1%.In the first polyethylene anti-fog layer 1; Antifoggant can move in polyethylene film, thereby makes the polyethylene anti-fog layer 1 of winning lose antifogging action, at this moment; The second polyethylene anti-fog layer 2 continues the performance antifogging action, thereby makes that the antifogging action of antifog Obstruct membrane is comparatively lasting.In other embodiments, second anti-fog layer 2 can be formed by other resins, can play antifogging action as long as be added with antifoggant.
First adhesive layer 3 is compounded on the second polyethylene anti-fog layer 2, increases the compatibility between the second polyethylene anti-fog layer 2 and the first polyamide barrier layer 4.First adhesive layer 3 is by binding resin, like formation such as TIE.
The first polyamide barrier layer 4 is compounded on first adhesive layer 3, plays resistance oxygen, iris action such as block water, and improves the barrier property of said antifog Obstruct membrane.The first polyamide barrier layer 4 is mainly formed by the polyamide (PA) resin.In other embodiments, first barrier layer 4 can also be formed by other resins, like ethylene-vinyl alcohol copolymer (EVOH) etc., as long as have good barrier performance.When first barrier layer 4 was formed by the ethylene-vinyl alcohol copolymer resin, said first barrier layer was the first ethylene-vinyl alcohol copolymer barrier layer.
The second ethylene-vinyl alcohol copolymer barrier layer 5 is compounded on the first polyamide barrier layer 4, plays resistance oxygen, iris action such as block water, and improves the barrier property of said antifog Obstruct membrane.The second ethylene-vinyl alcohol copolymer barrier layer 5 is mainly formed by the ethylene-vinyl alcohol copolymer resin.In other embodiments, the second ethylene-vinyl alcohol copolymer barrier layer 5 can also be formed by other resins, like polyamide etc., as long as have good barrier performance.When second barrier layer 5 was formed by polyamide, said second barrier layer was the second polyamide barrier layer.
The 3rd polyamide barrier layer 6 is compounded on the second ethylene-vinyl alcohol copolymer barrier layer 5, plays resistance oxygen, iris action such as block water, and improves the barrier property of said antifog Obstruct membrane.The 3rd polyamide barrier layer is mainly formed by polyamide.In other embodiments, the 3rd polyamide barrier layer 6 can also be formed by other resins, like ethylene-vinyl alcohol copolymer etc., as long as have good barrier performance.When the 3rd barrier layer 6 was formed by the ethylene-vinyl alcohol copolymer resin, the 3rd barrier layer 6 was the triethylene-ethenol copolymer barrier layer.
In the utility model; The effect of first barrier layer 4, second barrier layer 5 and the 3rd barrier layer 6 all is to improve the barrier property of said antifog Obstruct membrane; It all can be formed by the good resin of barrier properties such as ethylene-vinyl alcohol copolymer or polyamide, forms by polyamide like first barrier layer 4, second barrier layer 5 and the 3rd barrier layer 6, perhaps forms by the ethylene-vinyl alcohol copolymer resin; Perhaps arbitrarily two-layerly form by polyamide; Another layer is formed by the ethylene-vinyl alcohol copolymer resin, is perhaps arbitrarily two-layerly formed by the ethylene-vinyl alcohol copolymer resin, and another layer formed by the ethylene-vinyl alcohol copolymer resin.
Second adhesive layer 7 is compounded on the 3rd polyamide barrier layer 6, increases the compatibility between the 3rd polyamide barrier layer 6 and the 3rd polyethylene anti-fog layer 8.Second adhesive layer 7 is by binding resin, like formation such as TIE.
The 3rd polyethylene anti-fog layer 8 is compounded on second adhesive layer 7; Inferior internal layer as said antifog Obstruct membrane plays antifogging action; Can replenish the antifoggant that loses in the 4th polyethylene anti-fog layer 9 in the storage process; When the 4th polyethylene anti-fog layer 9 loses anti-fog function, mainly play antifogging action, improve the antifog persistence of said antifog Obstruct membrane.In the utility model, the 3rd polyethylene anti-fog layer 8 is mainly formed by polyvinyl resin, and is added with the antifoggant of antifogging action, and the addition of said antifoggant is preferably 1%～5%.In other embodiments, the 3rd anti-fog layer 8 can be formed by other resins, can play antifogging action as long as be added with antifoggant.
The 4th polyethylene anti-fog layer 9 is compounded on the 3rd polyethylene anti-fog layer 8, is the innermost layer of said antifog Obstruct membrane, has that resistance is wet, a heat-sealing, anti-fog function, is the antifog primary structure layer of package interior.The 4th polyethylene anti-fog layer 9 is mainly formed by polyvinyl resin, is added with the antifoggant of antifogging action, and the addition of said antifoggant is preferably 0.5%～2%.In other embodiments, the 4th anti-fog layer 9 also can be formed by ethylene-vinyl acetate copolymer resin.
The utility model has increased anti-fog layer at the inferior internal layer of antifog Obstruct membrane respectively with time skin; Anti-fog layer at outermost layer and innermost layer moves continuation performance antifogging action under the situation about losing efficacy owing to antifoggant; It not only has good antifog persistence; And have good barrier performance, can be as the food package film that stores under cold or the thermal environment, preservative film, freshness protection package etc.
The gross thickness of the antifog Obstruct membrane that the utility model provides can be 25 μ m～250 μ m, and wherein, the gross thickness of three barrier layers can be about 10% of antifog Obstruct membrane gross thickness; To this; The utility model does not have particular restriction, and those skilled in the art can carry out the adjustment behind the film according to actual barriering effect, when being 100 μ m like gross thickness; From outside to inside, the thickness of each layer can be followed successively by: 10,8.0,11.5,11.0,10.5,8.0,9.0,8.0 and 24.0.
The utility model adopts multi-layer co-extruded method to prepare said antifog Obstruct membrane, not only has good compound peel strength, superior environmental resistance, chemical-resistance, good mechanical performance, and has good anti-fog performance and barrier property.
The above only is the preferred implementation of the utility model; Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; Can also make some improvement and retouching, these improvement and retouching also should be regarded as the protection domain of the utility model.
Claims (9)
1. an antifog Obstruct membrane is characterized in that, comprising:
First anti-fog layer;
Be compounded in second anti-fog layer on said first anti-fog layer;
Be compounded in first adhesive layer on said second anti-fog layer;
Be compounded in first barrier layer on said first adhesive layer;
Be compounded in second barrier layer on said first barrier layer;
Be compounded in the 3rd barrier layer on said second barrier layer;
Be compounded in second adhesive layer on said the 3rd barrier layer;
Be compounded in the 3rd anti-fog layer on said second adhesive layer;
Be compounded in the 4th anti-fog layer on said the 3rd anti-fog layer.
2. antifog Obstruct membrane according to claim 1 is characterized in that, said first anti-fog layer is the first polyethylene anti-fog layer.
3. antifog Obstruct membrane according to claim 1 is characterized in that, said second anti-fog layer is the second polyethylene anti-fog layer.
4. antifog Obstruct membrane according to claim 1 is characterized in that, said first barrier layer is the first polyamide barrier layer or the first ethylene-vinyl alcohol copolymer barrier layer.
5. antifog Obstruct membrane according to claim 1 is characterized in that, said second barrier layer is the second polyamide barrier layer or the second ethylene-vinyl alcohol polymer barrier layer.
6. antifog Obstruct membrane according to claim 1 is characterized in that, said the 3rd barrier layer is the 3rd polyamide barrier layer or the triethylene-ethenol copolymer barrier layer.
7. antifog Obstruct membrane according to claim 1 is characterized in that, said the 3rd anti-fog layer is the 3rd polyethylene anti-fog layer.
8. antifog Obstruct membrane according to claim 1 is characterized in that, said the 4th anti-fog layer is the 4th polyethylene anti-fog layer or the 4th ethylene-vinyl acetate copolymer anti-fog layer.
9. according to any described antifog Obstruct membrane of claim 1～8, it is characterized in that the thickness of said antifog Obstruct membrane is 25 μ m～250 μ m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204089590U CN202283804U (en) | 2011-10-24 | 2011-10-24 | Anti-fog barrier film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204089590U CN202283804U (en) | 2011-10-24 | 2011-10-24 | Anti-fog barrier film |
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| Publication Number | Publication Date |
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| CN202283804U true CN202283804U (en) | 2012-06-27 |
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| CN2011204089590U Expired - Lifetime CN202283804U (en) | 2011-10-24 | 2011-10-24 | Anti-fog barrier film |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103129832A (en) * | 2013-02-22 | 2013-06-05 | 江阴升辉包装材料有限公司 | Moisture-retarding, oxygen-blocking and flavor-retaining packaging film with anti-fog function |
| CN106240111A (en) * | 2016-07-29 | 2016-12-21 | 江阴市德惠热收缩包装材料有限公司 | The antifog preservative film of high fluorine and preparation technology thereof |
| 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 |
| CN109605891A (en) * | 2018-12-29 | 2019-04-12 | 无锡市太平洋新材料股份有限公司 | A kind of food packaging antifog film |
-
2011
- 2011-10-24 CN CN2011204089590U patent/CN202283804U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103129832A (en) * | 2013-02-22 | 2013-06-05 | 江阴升辉包装材料有限公司 | Moisture-retarding, oxygen-blocking and flavor-retaining packaging film with anti-fog function |
| CN106240111A (en) * | 2016-07-29 | 2016-12-21 | 江阴市德惠热收缩包装材料有限公司 | The antifog preservative film of high fluorine and preparation technology thereof |
| CN106240111B (en) * | 2016-07-29 | 2019-04-02 | 江阴市德惠热收缩包装材料有限公司 | The antifog preservative film of high fluorine and its preparation process |
| 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 |
| CN109605891A (en) * | 2018-12-29 | 2019-04-12 | 无锡市太平洋新材料股份有限公司 | A kind of food packaging antifog film |
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Granted publication date: 20120627 |
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