CN202540882U - PET (Polyethylene Terephthalate) draping film - Google Patents
PET (Polyethylene Terephthalate) draping film Download PDFInfo
- Publication number
- CN202540882U CN202540882U CN2012201040089U CN201220104008U CN202540882U CN 202540882 U CN202540882 U CN 202540882U CN 2012201040089 U CN2012201040089 U CN 2012201040089U CN 201220104008 U CN201220104008 U CN 201220104008U CN 202540882 U CN202540882 U CN 202540882U
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- pet
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- draping
- eva
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- Expired - Fee Related
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- Extrusion Moulding Of Plastics Or The Like (AREA)
- Laminated Bodies (AREA)
Abstract
The utility model discloses a PET (Polyethylene Terephthalate) draping film, wherein the PET draping film is divided into three layers, i.e. a PET layer, a middle layer and a PP (Propene Polymer) layer, wherein the middle layer is a mixing layer of EVA (Ethylene Vinyl Acetate) and PE (Poly Ethylene); the middle layer and the PP layer adhere together in a hot extrusion way; and the thickness ratio of the middle layer to the PP layer is 1: 1. The PET draping film is simple in structure; no necking occurs to PE; therefore, after being fused with the PP, PE bonds with the PP in the hot extrusion way; therefore, the rejected sides of a film body are generated less, and the production cost is decreased; meanwhile, after being fused with the PE, EVA is combined with PET better; and in such a way, as no AC (Acetyl) adhesive is used necessarily during the production process, the PET draping film is more friendly to the environment.
Description
Technical field
The utility model relates to a kind of plastic sheeting, is specifically related to a kind of PET and is laminated with film.
Background technology
The PET plastics are abbreviations of English Polyethylene terephthalate, are called for short PET or PETP.The Chinese meaning is: poly terephthalic acid class plastics mainly comprise PET PET and polybutylene terephthalate PBT.PETG is commonly called as polyester resin again, is commonly called as polyester resin.It is the condensation polymer of terephthalic acid (TPA) and ethylene glycol, is referred to as thermoplastic polyester with PBT, or saturated polyester.
The PET film is that a kind of performance is than more comprehensive packing film.Its transparency is good, and is glossy; Have good air-tightness and fragrance protectiveness; Moisture resistance is medium, and rate of perviousness descends at low temperatures.The mechanical performance of PET film is good, and its obdurability is best in all thermoplastics, and tensile strength and impact strength are more much higher than general film; And very power is good, and dimensionally stable is suitable for secondary operations such as printing, paper bag.The PET film also has good heat-resisting, cold resistance and good chemical proofing and oil resistivity.
The gas permeability of PE polypropylene film is bigger, and with the increase of density, its gas permeability descends.The PE film has moisture resistance, and poisture-penetrability is little.Polyethylene film (PE) is different according to manufacturing approach and control device, can produce the product of different performances such as low-density, middle density, highdensity polyethylene and crosslinked polyethylene.
Conventional P ET/PP is laminated with film in process of production, because the constriction amount of PP is big, the slitter edge that causes producing is many, also will use the AC adhesive in process of production simultaneously, increases production cost, also can exert an influence to ecological environment.
The utility model content
The purpose of the utility model has been to provide a kind of waste material of generation few, need not use the PET of adhesive to be laminated with film.
The scheme of the utility model is following: a kind of PET is laminated with film, and described PET is laminated with film and is divided into three layers, is respectively pet layer, intermediate layer, PP layer.
Described intermediate layer is the mixed layer of EVA and PE.
Described intermediate layer and PP layer are bonded together through the hot extrude mode of closing.
Described intermediate layer and PP layer thickness ratio are 1: 1.
The beneficial effect of the utility model: simple in structure; Because PE does not have constriction, after merging PE, closes use EVA with the PP hot extrude, and the feasible film body slitter edge that produces is still less; Reduced production cost, closed with the PET hot extrude after EVA and PE merge simultaneously, the feasible film body slitter edge that produces still less; Reduced production cost; It is better with the PET associativity that EVA and PE merge the back simultaneously, need not to use in process of production AC adhesive, environmental protection more.
Description of drawings
Fig. 1 is the structural representation of the utility model.
The specific embodiment
Below in conjunction with Fig. 1 the utility model is further specified.
In the utility model, PET is a PETG, and EVA is the rare alkene copolymer of ethene-acetic acid, and PP is a polypropylene.
A kind of PET is laminated with film, and described PET is laminated with film and is divided into three layers, is respectively pet layer 1, intermediate layer 2, PP layer 3.
Described intermediate layer 2 is the mixed layer of EVA and PE.
Described intermediate layer 2 is bonded together through the hot extrude mode of closing with PP layer 3.
Described intermediate layer 2 is 1: 1 with PP layer 3 thickness proportion.
In actual production process, the constriction amount after EVA and PP merge is significantly smaller than the constriction amount of PP, like this when production PET is laminated with film; The slitter edge that produces will be still less; Manufacturing enterprise's cost has obtained reduction, and the associativity of adding EVA and PP fusion back and PET is better, need not to use adhesive; Further reduced the cost of enterprise, also reduced harmful effect environment.
Although preceding text have given to describe in detail and explanation to the specific embodiment of the utility model; But what should indicate is; We can carry out various equivalences to above-mentioned embodiment according to the conception of the utility model and change and modification; When the function that it produced does not exceed spiritual that specification and accompanying drawing contain yet, all should be within the protection domain of the utility model.
Claims (4)
1. a PET is laminated with film, it is characterized in that described PET is laminated with film and is divided into three layers, is respectively pet layer, intermediate layer, PP layer.
2. a kind of PET according to claim 1 is laminated with film, it is characterized in that described intermediate layer is the mixed layer of EVA and PE.
3. a kind of PET according to claim 1 is laminated with film, it is characterized in that described intermediate layer and PP layer are bonded together through the hot extrude mode of closing.
4. a kind of PET according to claim 1 is laminated with film, it is characterized in that described intermediate layer and PP layer thickness ratio are 1: 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201040089U CN202540882U (en) | 2012-03-12 | 2012-03-12 | PET (Polyethylene Terephthalate) draping film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201040089U CN202540882U (en) | 2012-03-12 | 2012-03-12 | PET (Polyethylene Terephthalate) draping film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202540882U true CN202540882U (en) | 2012-11-21 |
Family
ID=47161564
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201040089U Expired - Fee Related CN202540882U (en) | 2012-03-12 | 2012-03-12 | PET (Polyethylene Terephthalate) draping film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202540882U (en) |
-
2012
- 2012-03-12 CN CN2012201040089U patent/CN202540882U/en not_active Expired - Fee Related
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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: 20121121 Termination date: 20150312 |
|
| EXPY | Termination of patent right or utility model |