CN203567290U - Thermal belt molded composite hard aluminum sheet - Google Patents
Thermal belt molded composite hard aluminum sheet Download PDFInfo
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- CN203567290U CN203567290U CN201320752529.XU CN201320752529U CN203567290U CN 203567290 U CN203567290 U CN 203567290U CN 201320752529 U CN201320752529 U CN 201320752529U CN 203567290 U CN203567290 U CN 203567290U
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- polyvinyl chloride
- modified polyethylene
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Abstract
The utility model provides a thermal belt molded composite hard aluminum sheet and belongs to the technical field of machines. The problem that the current thermal belt molded composite hard aluminum sheet has single barrier property only to water vapor or oxygen is solved. The thermal belt molded composite hard aluminum sheet comprises a first polyvinyl chloride layer, an aluminum foil layer and a second polyvinyl chloride layer which are sequentially arranged, wherein an ethylene/ethenol copolymer layer is arranged between the first polyvinyl chloride layer and the aluminum foil layer; a maleic anhydride modified polyethylene layer and an acrylic acid modified polyethylene layer are also sequentially arranged between the second polyvinyl chloride layer and the aluminum foil layer; an adhesive layer made from alcohol-waterborne polyurethane modified polyacrylate is respectively arranged between the acrylic acid modified polyethylene layer and the aluminum foil layer, and between the aluminum foil layer and the first polyvinyl chloride layer. The thermal belt molded composite hard aluminum sheet has the advantages of long service life and very high barrier property to the water vapor and the oxygen.
Description
Technical field
The utility model belongs to pharmaceutical pack material technology field, particularly the hard sheet of a kind of tropical moulding clad aluminum.
Background technology
In existing drug packing material product, mostly be composite hard sheet structure, comprise: PVC, PVC/PVDC, PVC/PE, the infrastructure products such as PVC/ACLAR.Through use finding, existing these composites are often only having the shortcoming of single barrier property to water vapour or oxygen.
Summary of the invention
The purpose of this utility model is to have the problems referred to above for existing technology, has proposed a kind of long service life, steam and oxygen has been had to the hard sheet of the tropical moulding clad aluminum of energy of high barrier.
The purpose of this utility model can realize by following technical proposal: the hard sheet of a kind of tropical moulding clad aluminum, comprise the first polyvinyl chloride layer setting gradually, aluminium foil layer and the second polyvinyl chloride layer, it is characterized in that, between the first described polyvinyl chloride layer and aluminium foil layer, be provided with ethylene/vinyl alcohol copolymer layer, between described the second polyvinyl chloride layer and described aluminium foil layer, be also disposed with maleic anhydride modified polyethylene layer and acrylic acid modified polyethylene layer, described acrylic acid modified polyethylene layer and described aluminium foil layer, between aluminium foil layer and the first polyvinyl chloride layer, be equipped with the adhesive layer that adopts alcohol-water based polyurethane modified polyacrylate to make.
Compared with prior art, the utlity model has following advantage:
1, which floor hyaline membrane is after compound, and whole structure is still transparent, and steam and oxygen are had to high barrier property, and product structure is more symmetrical, can effectively improve the phenomenons such as warpage that in use may occur.
2, employing has stronger boiling resistance alcohol-water based polyurethane modified polyacrylate adhesive, replace original non-Environmental Safety toluene or ethyl acetate solvent borne polyurethane hot setting adhesive, polyester/aluminium/polyvinyl medicine composite film for foods package is carried out to bonding modification, during laminating production, the discharge of drying is nontoxic nonflammable alcohol-water mixing gas, not only thoroughly overcome the shortcoming of existing non-environment-friendly adhesive, kept again the Integrated using performance that this drug and food composite packing film is good simultaneously, thereby promoted well the production technology quality grade of this compound soft packing material product, obtained good environment protection modification effect.
3, the maleic anhydride modified polyethylene layer of extruding by coextrusion mode and acrylic acid modified polyethylene layer, not only have with accompanying separately aluminium foil layer, aramid layer and there is higher peel strength, and whole extruding layer is soft, toughness is strong, there is high hot strength and elongation at break, can effectively prevent that the aluminium that product may occur in cold stamping process from splitting and the problems such as absciss layer.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure, the 1, first polyvinyl chloride layer; 2, aluminium foil layer; 3, the second polyvinyl chloride layer; 4, ethylene/vinyl alcohol copolymer layer; 5, maleic anhydride modified polyethylene layer; 6, acrylic acid modified polyethylene layer; 7, adhesive layer.
The specific embodiment
Be below specific embodiment of the utility model by reference to the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiment.
As shown in Figure 1, the hard sheet of this tropical moulding clad aluminum comprises the first polyvinyl chloride layer 1, aluminium foil layer 2 and the second polyvinyl chloride layer 3 setting gradually, between the first polyvinyl chloride layer 1 and aluminium foil layer 2, be provided with ethylene/vinyl alcohol copolymer layer 4, between the second polyvinyl chloride layer 3 and aluminium foil layer 2, be also disposed with maleic anhydride modified polyethylene layer 5 and acrylic acid modified polyethylene layer 6, between acrylic acid modified polyethylene layer 6 and aluminium foil layer 2, aluminium foil layer 2 and the first polyvinyl chloride layer 1, be equipped with the adhesive layer 7 that adopts alcohol-water based polyurethane modified polyacrylate to make.
The maleic anhydride modified polyethylene layer 5 of extruding by coextrusion mode and acrylic acid modified polyethylene layer 6, not only have with accompanying separately aluminium foil layer 2, the second polyvinyl chloride layer 3 and there is higher peel strength, and whole extruding layer is soft, toughness is strong, there is high hot strength and elongation at break, can effectively prevent that the aluminium that product may occur in cold stamping process from splitting and the problems such as absciss layer.
Adopt and there is stronger boiling resistance alcohol-water based polyurethane modified polyacrylate adhesive simultaneously, replace original non-Environmental Safety toluene or ethyl acetate solvent borne polyurethane hot setting adhesive, polyester/aluminium/polyvinyl medicine composite film for foods package is carried out to bonding modification, during laminating production, the discharge of drying is nontoxic nonflammable alcohol-water mixing gas, not only thoroughly overcome the shortcoming of existing non-environment-friendly adhesive, kept again the Integrated using performance that this drug and food composite packing film is good simultaneously, thereby promoted well the production technology quality grade of this compound soft packing material product, obtained good environment protection modification effect
Which floor hyaline membrane of this cold stamping solid medicinal composite hard sheet is after compound, and whole structure is still transparent, and steam and oxygen are had to high barrier property, and product structure is more symmetrical, can effectively improve the phenomenons such as warpage that in use may occur.
Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various modifications or supplements or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Claims (1)
1. the hard sheet of tropical moulding clad aluminum, comprise the first polyvinyl chloride layer setting gradually, aluminium foil layer and the second polyvinyl chloride layer, it is characterized in that, between the first described polyvinyl chloride layer and aluminium foil layer, be provided with ethylene/vinyl alcohol copolymer layer, between described the second polyvinyl chloride layer and described aluminium foil layer, be also disposed with maleic anhydride modified polyethylene layer and acrylic acid modified polyethylene layer, described acrylic acid modified polyethylene layer and described aluminium foil layer, between aluminium foil layer and the first polyvinyl chloride layer, be equipped with the adhesive layer that adopts alcohol-water based polyurethane modified polyacrylate to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320752529.XU CN203567290U (en) | 2013-11-25 | 2013-11-25 | Thermal belt molded composite hard aluminum sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320752529.XU CN203567290U (en) | 2013-11-25 | 2013-11-25 | Thermal belt molded composite hard aluminum sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203567290U true CN203567290U (en) | 2014-04-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320752529.XU Expired - Fee Related CN203567290U (en) | 2013-11-25 | 2013-11-25 | Thermal belt molded composite hard aluminum sheet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203567290U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110435271A (en) * | 2018-05-03 | 2019-11-12 | 南通惠得成包装材料有限公司 | A kind of composite hard sheet and production method |
| CN115195167A (en) * | 2022-07-15 | 2022-10-18 | 浙江多凌药用包装材料有限公司 | Novel three-layer composite hard sheet process of polyvinyl chloride, polyvinylidene chloride and polyvinyl chloride |
| CN115352148A (en) * | 2022-10-17 | 2022-11-18 | 宁波时代铝箔科技股份有限公司 | Separable packaging material, preparation method thereof and packaging container |
-
2013
- 2013-11-25 CN CN201320752529.XU patent/CN203567290U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110435271A (en) * | 2018-05-03 | 2019-11-12 | 南通惠得成包装材料有限公司 | A kind of composite hard sheet and production method |
| CN115195167A (en) * | 2022-07-15 | 2022-10-18 | 浙江多凌药用包装材料有限公司 | Novel three-layer composite hard sheet process of polyvinyl chloride, polyvinylidene chloride and polyvinyl chloride |
| CN115352148A (en) * | 2022-10-17 | 2022-11-18 | 宁波时代铝箔科技股份有限公司 | Separable packaging material, preparation method thereof and packaging container |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140430 Termination date: 20171125 |