CN204701218U - A kind of high-barrier aluminum foil package material of acid-alkali-corrosive-resisting - Google Patents
A kind of high-barrier aluminum foil package material of acid-alkali-corrosive-resisting Download PDFInfo
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- CN204701218U CN204701218U CN201520199842.4U CN201520199842U CN204701218U CN 204701218 U CN204701218 U CN 204701218U CN 201520199842 U CN201520199842 U CN 201520199842U CN 204701218 U CN204701218 U CN 204701218U
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- acid composition
- soda acid
- aluminium foil
- barrier
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Abstract
The high-barrier aluminum foil package material of the acid-alkali-corrosive-resisting that the utility model provides, is structure of composite membrane, comprises: mechanical strength layer (1), is positioned at skin, can print decorative pattern inside it; Aluminium foil layer (3), is positioned at middle level, is the barrier layer of composite membrane; Soda acid composition barrier layer (5), is positioned at time internal layer, plays a part to intercept the infiltration of soda acid composition; Improved polyalkene film (7), is positioned at internal layer, plays the shaping effect of heat-sealing; First adhesive layer (2), between mechanical strength layer and aluminium foil layer; Second adhesive layer (4), between aluminium foil layer and soda acid composition barrier layer; 3rd adhesive layer (6), between soda acid composition barrier layer and improved polyalkene film.The utility model, one deck soda acid composition barrier layer (5) is added between aluminium foil layer (3) and improved polyalkene film (7), effectively can intercept the infiltration of soda acid composition to aluminium foil layer, thus avoid the use intermediate links delamination problems of aluminum foil package material appearance in actual food product packaging.
Description
Technical field
The utility model relates to a kind of packaging material, particularly a kind of high-barrier aluminum foil package material of acid-alkali-corrosive-resisting.
Background technology
Aluminum foil material is soft metallic film, is also current uniquely a kind of metal material for composite soft packaging material.Aluminum foil material mainly contains following advantage: 1. have protection against the tide, airtight, shading, wear-resisting, protect the advantages such as fragrant, nonpoisonous and tasteless; 2. there is graceful silvery white gloss, be easy to the beautiful pattern and the decorative pattern that process various color; 3. after aluminium foil and plastics compound, the heat sealability of the shielding of aluminium foil and plastics is combined together, further increase aluminium foil as the necessary shielding properties to steam, air, ultraviolet and bacterium etc. of packaging material, greatly widen the application market of aluminium foil.
But aluminium foil is amphoteric metal, be easy to and Acidity of Aikalinity composition generation chemical reaction, for the Acidity of Aikalinity composition generation chemical reaction through polyolefin interior layer hot sealing layer material, delamination can be there is in the use intermediate links of packaging during flexible packing material.And inevitably all there is certain soda acid in food and to dissociate composition, as food such as oil plant, sauce, hot pickled mustard tube, spiced and stewed foods, the penetrating power of these soda acid compositions is stronger, conventional polyene material, as polyethylene, polypropylene, poor ability is crossed to the gas barrier of these Acidity of Aikalinity compositions, so just there is packaging bag in use for some time, Acidity of Aikalinity composition in content is through internal layer hot sealing layer material, contact with aluminum foil material, there is chemical reaction, destroy aluminium foil layer material and the original bonding force of adhesive, also just occurred delamination.
If but do not use aluminum foil material, the barrier property of composite membrane is not enough or more single again, aluminium foil is completely light tight, not moisture-inhibiting, not oxygen flow comprehensive barrier material, and can also through the high-temperature sterilization post processing of 135 DEG C, and the plastic material of routine and some coating materials be all difficult to reach the such high-performance of aluminum foil material.
Therefore, develop a kind of high-barrier aluminum foil package material of acid-alkali-corrosive-resisting, will the application limitation of existing aluminum foil package material be overcome, solve the use intermediate links delamination problems that aluminum foil package material occurs in actual food product packaging.
Summary of the invention
What occur in Acidity of Aikalinity packaging for foodstuff purposes for aluminum foil package material on market is using intermediate links delamination problems, the utility model provides a kind of high-barrier aluminum foil package material of acid-alkali-corrosive-resisting, overcome the application limitation of existing aluminum foil package material, solve the use intermediate links delamination problems that aluminum foil package material occurs in actual food product packaging.
The high-barrier aluminum foil package material of the acid-alkali-corrosive-resisting that the utility model provides, is structure of composite membrane, comprises: mechanical strength layer, is positioned at skin, can print decorative pattern inside it; Aluminium foil layer, is positioned at middle level, is the barrier layer of composite membrane; Soda acid composition barrier layer, is positioned at time internal layer, plays a part to intercept the infiltration of soda acid composition; Improved polyalkene film, is positioned at internal layer, plays the shaping effect of heat-sealing; First adhesive layer, between mechanical strength layer and aluminium foil layer; Second adhesive layer, between aluminium foil layer and soda acid composition barrier layer; 3rd adhesive layer, between soda acid composition barrier layer and improved polyalkene film, plays cementation.
Described mechanical strength layer, be biaxially oriented polyester film, thickness is 12 ~ 15 μm, has the advantages that hot strength is high, deflection is good, can print decorative pattern inside film.
Described aluminium foil layer, is the soft state aluminium foil of 6.5-10 μm, provides the performance comprehensively intercepting light, oxygen, steam.
Described soda acid composition barrier layer is the biaxially oriented polyester film of high-crystallinity, and thickness is 7 ~ 12 μm, effectively intercepts the infiltration of soda acid composition to aluminium foil layer.
Described improved polyalkene film is multi-layer co-extruded blend film, has good heat sealability.
Described first adhesive layer, the second adhesive layer, the 3rd adhesive layer, be two-component polyurethane adhesive adhensive layer, thickness is 1.2-4 μm, and effect is bonded together by each layer membrane materials.
Maximum feature of the present utility model is: between aluminium foil layer and improved polyalkene film, add one deck soda acid composition barrier layer, effectively can intercept the infiltration of soda acid composition to aluminium foil layer, thus avoid the use intermediate links delamination problems of aluminum foil package material appearance in actual food product packaging.What soda acid composition barrier material was selected is biaxially oriented polyester film material, and this material is economy material best to soda acid composition barrier in common plastics film.
Accompanying drawing explanation
attachedfig. 1 is the structural representation of the high-barrier aluminum foil package material of a kind of acid-alkali-corrosive-resisting of utility model.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further detail, can implements according to this with reference to description word to make those skilled in the art.
Attached number in the figure is as follows: 1-mechanical strength layer; 2-first adhesive layer; 3-aluminium foil layer; 4-second adhesive layer; 5-soda acid composition barrier layer; 6-the 3rd adhesive layer; 7-improved polyalkene film.
The high-barrier aluminum foil package material of the acid-alkali-corrosive-resisting that the utility model provides, for structure of composite membrane, be followed successively by mechanical strength layer 1, first adhesive layer 2, aluminium foil layer 3, second adhesive layer 4, soda acid composition barrier layer the 5, the 3rd adhesive layer 6, improved polyalkene film 7 from outside to inside.
Described mechanical strength layer 1, be biaxially oriented polyester film, thickness is 12 ~ 15 μm, has the advantages that hot strength is high, deflection is good, can print decorative pattern inside film.
Described first adhesive layer 2, be two-component polyurethane adhesive adhensive layer, thickness is 1.2-4 μm, and effect has been binding function.
Described aluminium foil layer 3, is the soft state aluminium foil of 6.5-10 μm, provides the performance comprehensively intercepting light, oxygen, steam.
Described second adhesive layer 4, be two-component polyurethane adhesive adhensive layer, thickness is 1.2-4 μm, and effect has been binding function.
Described soda acid composition barrier layer 5 is biaxially oriented polyester films of high-crystallinity, and thickness is 7 ~ 12 μm, effectively intercepts the infiltration of soda acid composition to aluminium foil layer.
Described 3rd adhesive layer 6, be two-component polyurethane adhesive adhensive layer, thickness is 1.2-4 μm, and effect has been binding function.
Described improved polyalkene film 7 is multi-layer co-extruded blend films, has good heat sealability.
Key technology of the present utility model is: between aluminium foil layer and improved polyalkene film, add one deck soda acid composition barrier material, effectively can intercept the infiltration of soda acid composition to aluminium foil layer, thus avoid the use intermediate links delamination problems of aluminum foil package material appearance in actual food product packaging.What soda acid composition barrier material was selected is biaxially oriented polyester film material, and this material is economy material best to soda acid composition barrier in common plastics film.
Claims (2)
1. a high-barrier aluminum foil package material for acid-alkali-corrosive-resisting, is characterized in that, comprising:
Mechanical strength layer (1), is positioned at skin;
Aluminium foil layer (3), is positioned at middle level;
Soda acid composition barrier layer (5), is positioned at time internal layer;
Improved polyalkene film (7), is positioned at internal layer;
First adhesive layer (2), between mechanical strength layer and aluminium foil layer;
Second adhesive layer (4), between aluminium foil layer and soda acid composition barrier layer;
3rd adhesive layer (6), between soda acid composition barrier layer and improved polyalkene film.
2. the high-barrier aluminum foil package material of a kind of acid-alkali-corrosive-resisting according to claim 1, is characterized in that: described soda acid composition barrier layer (5) is the biaxially oriented polyester film of high-crystallinity, and thickness is 7 ~ 12 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520199842.4U CN204701218U (en) | 2015-04-06 | 2015-04-06 | A kind of high-barrier aluminum foil package material of acid-alkali-corrosive-resisting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520199842.4U CN204701218U (en) | 2015-04-06 | 2015-04-06 | A kind of high-barrier aluminum foil package material of acid-alkali-corrosive-resisting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204701218U true CN204701218U (en) | 2015-10-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520199842.4U Expired - Fee Related CN204701218U (en) | 2015-04-06 | 2015-04-06 | A kind of high-barrier aluminum foil package material of acid-alkali-corrosive-resisting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204701218U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109532149A (en) * | 2018-10-30 | 2019-03-29 | 上海海顺新型药用包装材料股份有限公司 | The industrial aluminum foil sack film of antiacid caustic corrosion |
-
2015
- 2015-04-06 CN CN201520199842.4U patent/CN204701218U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109532149A (en) * | 2018-10-30 | 2019-03-29 | 上海海顺新型药用包装材料股份有限公司 | The industrial aluminum foil sack film of antiacid caustic corrosion |
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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: 20151014 Termination date: 20180406 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |