CN203957428U - The freeze proof vacuum packaging film of a kind of low temperature - Google Patents
The freeze proof vacuum packaging film of a kind of low temperature Download PDFInfo
- Publication number
- CN203957428U CN203957428U CN201420417987.2U CN201420417987U CN203957428U CN 203957428 U CN203957428 U CN 203957428U CN 201420417987 U CN201420417987 U CN 201420417987U CN 203957428 U CN203957428 U CN 203957428U
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- membrane
- vacuum
- low temperature
- micropore
- antifreeze
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Abstract
The utility model relates to the freeze proof vacuum packaging film of a kind of low temperature, comprises successively from outside to inside outer protective film, antifreeze rete and vacuum bottom membrane.It is characterized in that, between antifreeze rete and vacuum bottom membrane, be provided with several micropore membrane vesicles that noncongeable oil is housed.Micropore membrane vesicle upper and lower surface is bonding by adhesive and antifreeze rete and vacuum counterdie respectively.Vacuum counterdie has microcellular structure.Under the condition that the beneficial effect of this packaging film is to vacuumize at low temperature, slowly discharge noncongeable oil, when playing sealing effect, play the freeze proof effect of low temperature.
Description
Technical field
The utility model relates to a kind of packaging film, relates in particular to a kind of packaging film at low temperatures with good vacuum leakproofness and frost resistance.
Background technology
At present, at packaging field, except the packing under normal condition, some packing relates to very extreme condition.As at high temperature or low temperature environment.Vacuum packaging has been the Main Means of protection inner package at present, and vacuum packaging can effectively prevent that packing material is by external factor, as the impact of steam, bacterium, air etc.But conventional vacuum diaphragm, under extreme conditions as under freezing conditions, is easy to cause film become fragile and destroy, thereby directly affects its sealing, meanwhile, because the freezing combination that causes film and interior bag thing is wrapped mucous membrane or destruction on thing in also can causing when getting thing.
Utility model content
The utility model, for the deficiencies in the prior art, provides a kind of packaging film with sealing and low temperature resistivity.
The utility model solves the technical scheme that its technical problem adopts:
The freeze proof vacuum packaging film of low temperature, comprises outer protective film from outside to inside successively, antifreeze rete and vacuum bottom membrane.It is characterized in that, between antifreeze rete and vacuum bottom membrane, be provided with several micropore membrane vesicles that low temperature noncongeable oil is housed.Micropore membrane vesicle upper and lower surface is bonding by adhesive and antifreeze rete and vacuum bottom membrane respectively.Vacuum bottom membrane has microcellular structure.
Further, described outer protective film is the thermoplastic membrane material with some strength, comprises multi-layer co-extruded nylon membrane, EVOH film, bi-directional stretching polyethylene film, polypropylene screen etc.
Further, described antifreeze film can be antifreeze plastic foil or the antifreeze nonwoven with antifreezing effect.Antifreeze plastic foil is the PE film that adds plastics blow molding antifreezing agent, HDPE film, PVC film, PP film etc.
The micropore membrane vesicle that noncongeable oil is housed further, comprises cellular plastic capsule and in-built noncongeable oil.Described plastic bag is the vesica of EVA plastic foil moulding, and EVA has very low glass transition temperature, can guarantee the flexibility that it is certain at low temperatures.The noncongeable oil being equipped with in vesica can be vaseline, atoleine etc.
Further, the area of described single micropore membrane vesicle is between 3-5cm
2between, thickness is between 2-5mm, and several micropore membrane vesicles are filled full composite membrane.
Further, the pore size on described micropore membrane vesicle is between 20-50um, and micropore is uniformly distributed on cyst membrane, and its area is between the 0.5%-1% of membrane vesicle area.
Further, described adhesive adopts acrylate adhesive.
Further, described vacuum bottom membrane is EVA film, and wherein, in EVA, the ratio of ethene is between 15-25%.
Further, on described vacuum bottom membrane, be uniformly distributed micropore, micropore size is between 10-50um.Adjacent holes spacing is between 5-10mm.
The beneficial effects of the utility model are: this film under freezing conditions still has good activity; while vacuumizing, can from micropore cyst membrane, extract a small amount of noncongeable oil out so that film has the good sealing that vacuumizes; and diaphragm is difficult for embrittlement at low temperatures; meanwhile, also can guarantee that packaging film is not at interior bag thing surface mucous membrane.
Accompanying drawing explanation
Fig. 1 is the utility model embodiment 1, cross section structure schematic diagram.
The specific embodiment
Embodiment 1
Below in conjunction with drawings and Examples, the utility model embodiment 1 is described further.
With reference to Fig. 1, the freeze proof vacuum packaging film of a kind of low temperature, comprises outer protective film 1 from outside to inside successively, antifreeze rete 2 and vacuum bottom membrane 3.It is characterized in that, between antifreeze rete 2 and vacuum bottom membrane 3, be provided with several micropore membrane vesicles 4 that low temperature noncongeable oil is housed.Micropore membrane vesicle 4 upper and lower surfaces are bonding by adhesive and antifreeze rete 2 and vacuum bottom membrane 3 respectively.Vacuum bottom membrane 3 has microcellular structure.
Described outer protective film 1 is 3 layers of co-extrusion nylon membrane.
Described antifreeze rete 2 is for adding the PE film of plastics blow molding antifreezing agent.
The described micropore membrane vesicle 4 that low temperature noncongeable oil is housed comprises cellular plastic capsule and in-built noncongeable oil.Described plastic bag is the vesica of EVA plastic foil moulding, and the noncongeable oil being equipped with in vesica is vaseline.
The surface area of described micropore membrane vesicle is 4cm
2, thickness is 3mm, several micropore membrane vesicles are filled full composite membrane.
Pore size on described micropore membrane vesicle 4 is between 20-50um, and micropore is uniformly distributed on cyst membrane, and its area is 0.8% of membrane vesicle area.
Described adhesive adopts acrylate adhesive.
Described vacuum bottom membrane 3 is EVA film, and wherein, in EVA, the ratio of ethene is 20%.
On described vacuum bottom membrane 3, be uniformly distributed micropore, micropore size is between 20um.Adjacent holes spacing is 8mm.
Above a kind of preferred embodiment of the present utility model has been done to detailed introduction.The described specific embodiment is just for helping to understand core concept of the present utility model.It should be pointed out that for those skilled in the art, do not departing under the prerequisite of the utility model principle, can also carry out some improvement and modification to the utility model, these improvement and modification also belong to the protection domain of the utility model claim.
Claims (2)
1. the freeze proof vacuum packaging film of low temperature; comprise successively from outside to inside outer protective film; antifreeze rete and vacuum bottom membrane; it is characterized in that; between antifreeze rete and vacuum bottom membrane, be provided with several micropore membrane vesicles that noncongeable oil is housed; micropore membrane vesicle upper and lower surface is bonding by adhesive and antifreeze rete and vacuum bottom membrane respectively, and vacuum bottom membrane has microcellular structure.
2. according to the freeze proof vacuum packaging film of the low temperature of claim 1, be further characterized in that: on described vacuum bottom membrane, be uniformly distributed micropore, micropore size is between 10-50um, and between adjacent micropore, spacing is 5-10mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420417987.2U CN203957428U (en) | 2014-07-28 | 2014-07-28 | The freeze proof vacuum packaging film of a kind of low temperature |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420417987.2U CN203957428U (en) | 2014-07-28 | 2014-07-28 | The freeze proof vacuum packaging film of a kind of low temperature |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203957428U true CN203957428U (en) | 2014-11-26 |
Family
ID=51918060
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420417987.2U Expired - Fee Related CN203957428U (en) | 2014-07-28 | 2014-07-28 | The freeze proof vacuum packaging film of a kind of low temperature |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203957428U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106037790A (en) * | 2016-05-31 | 2016-10-26 | 成都天奥电子股份有限公司 | Wireless auscultation device |
-
2014
- 2014-07-28 CN CN201420417987.2U patent/CN203957428U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106037790A (en) * | 2016-05-31 | 2016-10-26 | 成都天奥电子股份有限公司 | Wireless auscultation device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141126 Termination date: 20150728 |
|
| EXPY | Termination of patent right or utility model |