CN202943993U - Thermally compounded polyurethane film - Google Patents
Thermally compounded polyurethane film Download PDFInfo
- Publication number
- CN202943993U CN202943993U CN 201220647341 CN201220647341U CN202943993U CN 202943993 U CN202943993 U CN 202943993U CN 201220647341 CN201220647341 CN 201220647341 CN 201220647341 U CN201220647341 U CN 201220647341U CN 202943993 U CN202943993 U CN 202943993U
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- adhesive layer
- melt adhesive
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- hot melt
- polyurethane film
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Abstract
The utility model relates to a thermally compounded polyurethane film which comprises a hot melt adhesive layer, a thermoplastic polyurethane layer, a solvent coated hot melt adhesive layer and a dry-method polyurethane surface layer which are sequentially compounded from bottom to top. The melting temperature of the hot melt adhesive layer is lower than that of the thermoplastic polyurethane layer and the dry-method polyurethane surface layer. The polyurethane film which can be compounded through hot-press with various base materials has the advantages of simple structure, convenience in use, agile and variable application and the like.
Description
Technical field
The utility model relate to a kind of can hot composite polyurethane film.
Background technology
known, synthetic leather all is composited by base material and coating resin, as carrying out the polyurethane wet-process coating or the polyurethane dry method is made face etc. on base material, the compound of base material and coating resin is all to complete in the production process of synthetic leather, therefore the selection for base material has certain limitation, and can't replace base material as required and keep coating resin, synthetic leather is at garment material, the footwear material, the fields such as suitcase have widely uses, carry out the compound coating resin film of heat with various base materials in use as providing a kind of, realization connects without sewing, can greatly reduce a large amount of artificial and time cost that expends because of the sewing machine operation, and optionally do not carry out compound coating resin film with various base materials in use in the market.
The utility model content
The purpose of this utility model is to provide a kind ofly can carry out compound polyurethane film by hot pressing and various base material, has the advantages such as simple in structure, easy to use, that applying flexible is changeable.
The purpose of this utility model realizes by following technical solution:
A kind of can hot composite polyurethane film, it is characterized in that: comprise the hot melt adhesive layer, solvent coating hot melt adhesive layer and the dry method polyurethane surface layer that are composited successively from the bottom to top, the melt temperature of described hot melt adhesive layer is lower than the melt temperature of solvent coating hot melt adhesive layer and dry method polyurethane surface layer.
Further, described hot melt adhesive layer is thermoplastic polyurethane.
Further, the melt temperature of described hot melt adhesive layer is 70-180 ℃.
Further, the melt temperature of described solvent coating hot melt adhesive layer is not less than the melt temperature of hot melt adhesive layer.
Further, the utility model also comprises the thermoplastic urethane layers that is arranged between hot melt adhesive layer and solvent coating hot melt adhesive layer.
Further, the melt temperature of described thermoplastic urethane layers is greater than the melt temperature of hot melt adhesive layer, and the melt temperature of described thermoplastic urethane layers is 120-240 ℃.
The utlity model has following beneficial effect:
in use, hot melt adhesive layer and the base material applying of polyurethane film are positioned in hot press, get final product by hot press hot pressing is compound, melt temperature due to hot melt adhesive layer in hot pressing is minimum, when the hot pressing temperature of hot press surpasses the melt temperature of hot melt adhesive layer, PUR just can melt with the adhesive as base material and polyurethane film, thereby polyurethane film is compound with base material securely, here base material can be garment material, the footwear material, suitcase etc., hot pressing is compound makes without the sewing vamp as carrying out with vamp material, can greatly reduce a large amount of artificial and time cost that expends because of the sewing machine operation, be widely used, easy to use.The utility model also can dispense thermoplastic urethane layers as required, to save cost.
Description of drawings
Below in conjunction with accompanying drawing, the utility model is described in further detail.
The cutaway view of the polyurethane film that Fig. 1 provides for the utility model.
The specific embodiment
With reference to shown in Figure 1, a kind of can hot composite polyurethane film, comprise the hot melt adhesive layer 1, thermoplastic urethane layers 2, solvent coating hot melt adhesive layer 3 and the dry method polyurethane surface layer 4 that are composited successively from the bottom to top.
Hot melt adhesive layer 1 is thermoplastic polyurethane, melt temperature is 120 ℃, the melt temperature of solvent coating hot melt adhesive layer 3, thermoplastic urethane layers 2 and dry method polyurethane surface layer 4 is not less than the melt temperature of hot melt adhesive layer 1, the melt temperature that is specially solvent coating hot melt adhesive layer 3 is 120 ℃, and the melt temperature of thermoplastic urethane layers 2 is 170 ℃.
A kind of can hot composite polyurethane thin film technology method, carry out on the synthetic leather dry process production line, comprise the steps:
(1), apply dry method polyurethane surface layer on release liners, and oven dry, dry method polyurethane surface layer composition of raw materials is by weight: PU resin: mill base: DMF:MEK=100:25:60:20 applies gap 0.17mm, oven dry adopts the temperature of rising progressively to carry out, and concrete bake out temperature is 60 ℃-85 ℃-105 ℃;
(2), carry out the solvent coating hot melt adhesive layer at dry method polyurethane facing surface, and oven dry, solvent coating hot melt adhesive layer composition of raw materials is by weight: PUR: DMF:MEK=100:100:50, apply gap 0.22mm, oven dry adopts the temperature of rising progressively to carry out, and concrete bake out temperature is 65 ℃-85 ℃-115 ℃;
(3), the thermoplastic urethane layers face heat with hot melt adhesive layer+thermoplastic urethane layers is compounded on the solvent coating hot melt adhesive layer, peel off release liners after cooling and make polyurethane film, 140 ℃ of hot combined temps, pressure 4.5MPa, wherein, hot melt adhesive layer and thermoplastic urethane layers are hot-melt adhesive membrane+thermoplastic polyurethane film of buying on market, and hot-melt adhesive membrane+thermoplastic polyurethane film has been combined with each other when buying, and can omit in order to save the cost thermoplastic polyurethane film.
The above, it is only preferred embodiment of the present utility model, therefore can not limit the scope that the utility model is implemented with this, the equivalence of namely doing according to the utility model claim and description changes and modifies, and all should still belong in the scope that the utility model patent contains.
Claims (7)
- One kind can hot composite polyurethane film, it is characterized in that: comprise the hot melt adhesive layer, solvent coating hot melt adhesive layer and the dry method polyurethane surface layer that are composited successively from the bottom to top, the melt temperature of described hot melt adhesive layer is lower than the melt temperature of solvent coating hot melt adhesive layer and dry method polyurethane surface layer.
- According to claim 1 a kind of can hot composite polyurethane film, it is characterized in that: described hot melt adhesive layer is thermoplastic polyurethane.
- According to claim 1 a kind of can hot composite polyurethane film, it is characterized in that: the melt temperature of described hot melt adhesive layer is 70-180 ℃.
- According to claim 1 a kind of can hot composite polyurethane film, it is characterized in that: the melt temperature of described solvent coating hot melt adhesive layer is not less than the melt temperature of hot melt adhesive layer.
- According to claim 1 and 2 or 3 or 4 described a kind of can hot composite polyurethane film, it is characterized in that: also comprise the thermoplastic urethane layers that is arranged between hot melt adhesive layer and solvent coating hot melt adhesive layer.
- According to claim 5 a kind of can hot composite polyurethane film, it is characterized in that: the melt temperature of described thermoplastic urethane layers is greater than the melt temperature of hot melt adhesive layer.
- According to claim 6 a kind of can hot composite polyurethane film, it is characterized in that: the melt temperature of described thermoplastic urethane layers is 120-240 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220647341 CN202943993U (en) | 2012-11-29 | 2012-11-29 | Thermally compounded polyurethane film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220647341 CN202943993U (en) | 2012-11-29 | 2012-11-29 | Thermally compounded polyurethane film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202943993U true CN202943993U (en) | 2013-05-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220647341 Expired - Fee Related CN202943993U (en) | 2012-11-29 | 2012-11-29 | Thermally compounded polyurethane film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202943993U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102941696A (en) * | 2012-11-29 | 2013-02-27 | 泉州万华世旺超纤有限责任公司 | Thermal compounding polyurethane thin film and preparation method thereof |
| CN106235513A (en) * | 2016-08-31 | 2016-12-21 | 刘银实 | A kind of big end, this big end and the method for laminating of the middle end and prepared sole |
-
2012
- 2012-11-29 CN CN 201220647341 patent/CN202943993U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102941696A (en) * | 2012-11-29 | 2013-02-27 | 泉州万华世旺超纤有限责任公司 | Thermal compounding polyurethane thin film and preparation method thereof |
| CN106235513A (en) * | 2016-08-31 | 2016-12-21 | 刘银实 | A kind of big end, this big end and the method for laminating of the middle end and prepared sole |
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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: 20130522 Termination date: 20181129 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |