CN204914798U - Novel polyethylene and polypropylene coextrusion casting aluminizer - Google Patents
Novel polyethylene and polypropylene coextrusion casting aluminizer Download PDFInfo
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- CN204914798U CN204914798U CN201520639346.6U CN201520639346U CN204914798U CN 204914798 U CN204914798 U CN 204914798U CN 201520639346 U CN201520639346 U CN 201520639346U CN 204914798 U CN204914798 U CN 204914798U
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Abstract
The utility model discloses a novel polyethylene and polypropylene coextrusion casting aluminizer has heat -seal layer, sandwich layer and the corona layer of superpose in proper order, the heat -seal layer is the metallocene polyethylene layer, and the sandwich layer is homopolymerization polypropylene layer, and the corona layer is the modified polypropylene layer of maleic anhydride. This is novel mainly to provide reasonable combination to three -layer crowded altogether and improves, has had low temperature heat sealability and high barrier properties concurrently, has extended the curtain coating application of polypropylene in the aspect of all trades and professions have the requirement of separation nature of aluminizing, has solved and has made barrier layer applied fungible problem on pack with the metal.
Description
Technical field
The utility model relates to a kind of packing film material, specifically refers to a kind of novel polyethylene and polypropylene coextrusion casting aluminizer.
Background technology
Common cast polypropylene film of aluminizing, its hot sealing layer is common atactic copolymerized polypropene resin, and it is higher that it plays envelope temperature, High-Speed Automatic packaging cannot be adapted to, need to carry out necessary modification for having reduced envelope temperature, usual way adds various elastomer, and this method cost compare is high.And common cast polypropylene aluminium lamination cohesive force of aluminizing is low, and aluminium powder easily comes off, and aluminium coated cannot reach certain thickness, and barrier property is limited.
Utility model content
The purpose of this utility model is to provide that a kind of low temperature heat seal is good, aluminium lamination cohesive force is high, be applicable to novel polyethylene that low-temperature and high-speed packs automatically and polypropylene coextrusion casting aluminizer, expand curtain coating polypropylene of aluminizing and had application in barrier requirement in all trades and professions, solved and make with metal the alternative problem that barrier layer applies on the packaging.
In order to reach above-mentioned purpose, solution of the present utility model is:
A kind of novel polyethylene and polypropylene coextrusion casting aluminizer, have hot sealing layer stacked successively, sandwich layer and corona layer; Hot sealing layer is metallocene polyethylene layer, and sandwich layer is HOPP layer, and corona layer is maleic anhydride modified polypropylene layer.
Also antistatic layer is provided with between described hot sealing layer and sandwich layer.
Described sandwich layer and corona interlayer are also provided with antistatic layer.
Uvioresistant layer is also provided with between described hot sealing layer and sandwich layer.
Described sandwich layer and corona interlayer are also provided with uvioresistant layer.
Also be provided with antistatic layer between described hot sealing layer and sandwich layer, sandwich layer and corona interlayer are also provided with uvioresistant layer.
After adopting such scheme, this novel a kind of novel polyethylene and polypropylene coextrusion casting aluminizer, mainly reasonably combine improvement, with low temperature heat seal and high obstructing performance to three layers of proposition of co-extrusion.Wherein hot sealing layer adopts metallocene polyethylene material, and its an envelope temperature is low, and heat-sealing window is wide, makes this novel coextrusion casting aluminizer be applicable to High-Speed Automatic packaging with this; Sandwich layer adopts HOPP material, has high-stiffness feature, and high-stiffness gives packaging excellent stiffness, and bandwagon effect is better; What corona layer adopted is maleic anhydride modified polypropylene material, improve the adsorption strength of aluminium coated and polypropylene base, the raising of aluminium lamination cohesive force makes aluminium powder difficult drop-off, makes aluminum layer thickness increase become possibility simultaneously, greatly improves the barrier property of aluminizer.
Accompanying drawing explanation
Fig. 1 is the structural representation of this novel coextrusion casting aluminizer first embodiment;
Fig. 2 is the structural representation of this novel coextrusion casting aluminizer second embodiment;
Fig. 3 is the structural representation of this novel coextrusion casting aluminizer the 3rd embodiment;
Fig. 4 is the structural representation of this novel coextrusion casting aluminizer the 4th embodiment.
Label declaration
Hot sealing layer 1 sandwich layer 2
Corona layer 3 antistatic layer 4
Uvioresistant layer 5.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, this case is described in further detail.
This case relates to a kind of novel polyethylene and polypropylene coextrusion casting aluminizer, and as shown in Figure 1, it has hot sealing layer 1 stacked successively, sandwich layer 2 and corona layer 3.
Hot sealing layer 1 is metallocene polyethylene layer, namely adopts the thin layer that metallocene polyethylene material is made.Sandwich layer 2 is HOPP layer, namely adopts the thin layer that HOPP material is made.Corona layer 3 is maleic anhydride modified polypropylene layer, namely adopts the thin layer that the polypropylene (ternary atactic copolymerized polypropene) via maleic anhydride (maleic anhydride stem grafting polyolefin) modification is made.
This novel polyethylene and polypropylene coextrusion casting aluminizer, mainly propose reasonably to limit and combine to improve to three layers (hot sealing layer 1, sandwich layer 2 and corona layer 3) of co-extrusion, wherein hot sealing layer 1 adopts metallocene polyethylene material, an its envelope temperature is low, heat-sealing window is wide, makes this novel coextrusion casting aluminizer be applicable to High-Speed Automatic packaging with this.Sandwich layer 2 adopts HOPP material, there is high-stiffness feature, high-stiffness gives packaging excellent stiffness, bandwagon effect is better. and what corona layer 3 adopted is maleic anhydride modified polypropylene material, which raises the adsorption strength of aluminium coated and polypropylene base, the raising of aluminium lamination cohesive force makes aluminium powder difficult drop-off, makes aluminum layer thickness increase become possibility simultaneously, greatly improves the barrier property of aluminizer.In this, this novel curtain coating aluminizer, with low temperature heat seal and high obstructing performance, has greatly been expanded curtain coating and have been aluminized the application of polypropylene in all trades and professions.
Preferably, as shown in Figure 2, this novel coextrusion casting aluminizer, antistatic layer 4 is also provided with in the side of sandwich layer 2 or both sides, this antistatic layer 4 is folded between hot sealing layer 1 and sandwich layer 2, and/or be folded between sandwich layer 2 and corona layer 3, make this novel coextrusion casting aluminizer also have antistatic effect with this.
Preferably, as shown in Figure 3, this novel coextrusion casting aluminizer, uvioresistant layer 5 is also provided with in the side of sandwich layer 2 or both sides, this UV-resistant layer 5 is folded between hot sealing layer 1 and sandwich layer 2, and/or be folded between sandwich layer 2 and corona layer 3, make this novel coextrusion casting aluminizer also have uvioresistant effect with this.
Preferably, as shown in Figure 4, this novel coextrusion casting aluminizer, is also provided with antistatic layer 4 between hot sealing layer 1 and sandwich layer 2, is also provided with uvioresistant layer 5 between sandwich layer 2 and corona layer 3.Compare uvioresistant layer 5, antistatic layer 4 is positioned at inside it.Make this novel coextrusion casting aluminizer also have excellent antistatic and uvioresistant effect with this simultaneously.
The foregoing is only the preferred embodiment that this is novel, all equalizations done with this novel right change and modify, and all should belong to the scope of this novel claim.
Claims (6)
1. novel polyethylene and a polypropylene coextrusion casting aluminizer, is characterized in that: have hot sealing layer stacked successively, sandwich layer and corona layer; Hot sealing layer is metallocene polyethylene layer, and sandwich layer is HOPP layer, and corona layer is maleic anhydride modified polypropylene layer.
2. a kind of novel polyethylene as claimed in claim 1 and polypropylene coextrusion casting aluminizer, is characterized in that: be also provided with antistatic layer between described hot sealing layer and sandwich layer.
3. a kind of novel polyethylene as claimed in claim 1 or 2 and polypropylene coextrusion casting aluminizer, is characterized in that: described sandwich layer and corona interlayer are also provided with antistatic layer.
4. a kind of novel polyethylene as claimed in claim 1 and polypropylene coextrusion casting aluminizer, is characterized in that: be also provided with uvioresistant layer between described hot sealing layer and sandwich layer.
5. a kind of novel polyethylene as described in claim 1 or 4 and polypropylene coextrusion casting aluminizer, is characterized in that: described sandwich layer and corona interlayer are also provided with uvioresistant layer.
6. a kind of novel polyethylene as claimed in claim 1 and polypropylene coextrusion casting aluminizer, is characterized in that: be also provided with antistatic layer between described hot sealing layer and sandwich layer, and sandwich layer and corona interlayer are also provided with uvioresistant layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520639346.6U CN204914798U (en) | 2015-08-24 | 2015-08-24 | Novel polyethylene and polypropylene coextrusion casting aluminizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520639346.6U CN204914798U (en) | 2015-08-24 | 2015-08-24 | Novel polyethylene and polypropylene coextrusion casting aluminizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204914798U true CN204914798U (en) | 2015-12-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520639346.6U Expired - Fee Related CN204914798U (en) | 2015-08-24 | 2015-08-24 | Novel polyethylene and polypropylene coextrusion casting aluminizer |
Country Status (1)
| Country | Link |
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| CN (1) | CN204914798U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105500869A (en) * | 2016-01-12 | 2016-04-20 | 东莞市华宇包装有限公司 | Anti-static film and preparation technology thereof |
| CN107933025A (en) * | 2017-11-02 | 2018-04-20 | 上海紫江新材料科技有限公司 | A kind of cast polypropylene film and preparation method thereof |
-
2015
- 2015-08-24 CN CN201520639346.6U patent/CN204914798U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105500869A (en) * | 2016-01-12 | 2016-04-20 | 东莞市华宇包装有限公司 | Anti-static film and preparation technology thereof |
| CN107933025A (en) * | 2017-11-02 | 2018-04-20 | 上海紫江新材料科技有限公司 | A kind of cast polypropylene film and preparation method thereof |
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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: 20151230 Termination date: 20160824 |