CN102963049A - Thermal composite light polyurethane film and preparation method thereof - Google Patents
Thermal composite light polyurethane film and preparation method thereof Download PDFInfo
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- CN102963049A CN102963049A CN2012105018835A CN201210501883A CN102963049A CN 102963049 A CN102963049 A CN 102963049A CN 2012105018835 A CN2012105018835 A CN 2012105018835A CN 201210501883 A CN201210501883 A CN 201210501883A CN 102963049 A CN102963049 A CN 102963049A
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Abstract
The invention provides a thermal composite light polyurethane film which comprises a hot melt adhesive layer, a wet-process polyurethane layer and a dry-process polyurethane cover layer which are composited in sequence from bottom to top. The melting temperature of the hot melt adhesive layer is lower than that of the wet-process polyurethane layer and the dry-process polyurethane cover layer. The polyurethane film provided by the invention can be composited with various substrates by hot press welding, and has the advantages of simple structure, convenience in use, flexible application, light weight, high softness, easiness for processing and the like.
Description
Technical field
The present invention relates to a kind of polyurethane film and preparation method thereof.
Background technology
Known, synthetic leather all is composited by base material and coating resin, as carrying out the polyurethane wet-process coating at base material or the polyurethane dry method is made face etc., the compound of base material and coating resin all is to finish 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, then can greatly reduce a large amount of artificial and time cost that expends because of the sewing machine operation, and optionally not carry out compound coating resin film with various base materials in use in the market.
Summary of the invention
The purpose of this invention is to provide and a kind ofly can carry out compound polyurethane film by mode and the various base material of hot pressing welding, have simple in structure, easy to use, applying flexible is changeable, quality is light, soft, easy advantages such as processing.
Purpose of the present invention realizes by following technical solution:
A kind of can hot composite light polyurethane film, it is characterized in that: comprise the hot melt adhesive layer, wet polyurethane layer and the dry method polyurethane-coated 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 wet polyurethane layer and dry method polyurethane-coated 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 thickness of described hot melt adhesive layer is 0.15-0.30mm, and the thickness of wet polyurethane layer is 0.25-0.50mm, and the thickness of dry method polyurethane-coated layer is 0.05-0.20mm.
A kind of preparation method that can hot composite light polyurethane film comprises the steps:
(1), adopt wet processing to apply the wet polyurethane layer at release base material;
(2), adopt dry process at wet polyurethane layer Surface Machining dry method polyurethane-coated layer;
(3), release base material being peeled off again can hot composite polyurethane film with hot melt adhesive layer and compound the making of wet polyurethane layer.
Described release base material is oxford.
The present invention has following beneficial effect:
In use, hot melt adhesive layer that can hot composite polyurethane film and base material are fitted and are positioned in the hot press, get final product by hot press hot pressing is compound, melt temperature owing 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, has light weight, the intensity high, if with grenadine or screen cloth Material cladding, can make vamp have good gas permeability, be widely used, easy to use.
In can hot composite polyurethane thin film technology technique, select oxford as release base material, it is moderate that wet polyurethane layer and Oxford are furnished with bond strength, can in process, be unlikely to oxford and automatically separate with the wet polyurethane layer, effortless advantage again in follow-up oxford and wet polyurethane layer need to being peeled off.Adopt dry process can greatly enrich lines and the color of hot melt adhesive layer, change common hot melt adhesive layer color and the single drawback of lines, and because containing the characteristics that the wet method foaming layer has quality light (density is low), soft, easily processing (behind the stamping-out not crimping) in the centre.
Description of drawings
Below in conjunction with accompanying drawing the present invention is described in further detail.
Fig. 1 is cutaway view that can hot composite polyurethane film provided by the invention.
The specific embodiment
With reference to shown in Figure 1, a kind of can hot composite light polyurethane film, comprise the hot melt adhesive layer 1, wet polyurethane layer 2 and the dry method polyurethane-coated layer 3 that are composited successively from the bottom to top, the melt temperature of hot melt adhesive layer 1 is lower than the melt temperature of wet polyurethane layer 2 and dry method polyurethane-coated layer 3.
Hot melt adhesive layer 1 is thermoplastic polyurethane, and melt temperature is 120 ℃, and the thickness of hot melt adhesive layer 1 is 0.15mm, and the thickness of wet polyurethane layer 2 is 0.3mm, and the thickness of dry method polyurethane-coated layer 3 is 0.1mm.
A kind of preparation method that can hot composite light polyurethane film comprises the steps:
(1), adopt wet processing to apply the wet polyurethane layer at oxford, the prescription of wet polyurethane layer is by weight: PU resin: mill base: DMF: non-ionic surface active agent: modified organic silicon auxiliary agent=100:5:30:1:0.5, technique: 30 ℃ of setting temperatures, solidify concentration 23%;
(2), adopt dry process at wet polyurethane layer Surface Machining dry method polyurethane-coated layer, the prescription of dry method polyurethane-coated layer is by weight: PU resin: mill base: DMF:MEK=100:25:60:20, apply gap 0.15mm, 60 ℃-85 ℃-105 ℃ of baking temperatures;
(3), oxford peeled off again compound making can hot composite polyurethane film under the condition of 135 ℃ of temperature, pressure 0.3MPa with hot melt adhesive layer and wet polyurethane layer, also can apply tack coat in order to increase between bonding reliability hot melt adhesive layer and the wet polyurethane layer.
The above only is preferred embodiment of the present invention, so can not limit scope of the invention process with this, the equivalence of namely doing according to the present patent application claim and description changes and modifies, and all should still belong in the scope that patent of the present invention contains.
Claims (6)
- One kind can hot composite light polyurethane film, it is characterized in that: comprise the hot melt adhesive layer, wet polyurethane layer and the dry method polyurethane-coated 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 wet polyurethane layer and dry method polyurethane-coated layer.
- According to claim 1 a kind of can hot composite light polyurethane film, it is characterized in that: described hot melt adhesive layer is thermoplastic polyurethane.
- According to claim 1 and 2 a kind of can hot composite light polyurethane film, it is characterized in that: the melt temperature of described hot melt adhesive layer is 70-180 ℃.
- According to claim 1 and 2 a kind of can hot composite light polyurethane film, it is characterized in that: the thickness of described hot melt adhesive layer is 0.15-0.30mm, the thickness of wet polyurethane layer is 0.25-0.50mm, and the thickness of dry method polyurethane-coated layer is 0.05-0.20mm.
- One kind can hot composite light polyurethane film the preparation method, comprise the steps:(1), adopt wet processing to apply the wet polyurethane layer at release base material;(2), adopt dry process at wet polyurethane layer Surface Machining dry method polyurethane-coated layer;(3), release base material being peeled off again can hot composite polyurethane film with hot melt adhesive layer and compound the making of wet polyurethane layer.
- 6. a kind of preparation method that can hot composite light polyurethane film according to claim 5, it is characterized in that: described release base material is oxford.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2012105018835A CN102963049A (en) | 2012-11-29 | 2012-11-29 | Thermal composite light polyurethane film and preparation method thereof |
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| CN2012105018835A CN102963049A (en) | 2012-11-29 | 2012-11-29 | Thermal composite light polyurethane film and preparation method thereof |
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| CN102963049A true CN102963049A (en) | 2013-03-13 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103568448A (en) * | 2013-10-08 | 2014-02-12 | 东莞市雄林新材料科技有限公司 | Hot melt adhesive attached with dry-type PU (polyurethane) on wet-type PU |
| CN109233661A (en) * | 2017-05-05 | 2019-01-18 | 上海海优威新材料股份有限公司 | Novel multi-layer caking property film based on cross-linking radiation substrate and preparation method thereof |
| CN109256030A (en) * | 2018-11-23 | 2019-01-22 | 广州山木新材料科技有限公司 | A kind of label for clothing and preparation method thereof with spontaneous heating |
| CN109624422A (en) * | 2018-11-05 | 2019-04-16 | 安徽安利材料科技股份有限公司 | A kind of TPU high/low temperature film composite webs and preparation method thereof |
| CN109648934A (en) * | 2018-11-30 | 2019-04-19 | 安徽安利材料科技股份有限公司 | A kind of preparation method of the dual-purpose Synthetic Leather of the seamless sewing of sports play shoes |
| CN112622392A (en) * | 2019-09-20 | 2021-04-09 | 美瑞新材料股份有限公司 | Thermoplastic polyurethane foam product with surface coating and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102442038A (en) * | 2010-09-30 | 2012-05-09 | 三芳化学工业股份有限公司 | Laminated material and its manufacture method |
-
2012
- 2012-11-29 CN CN2012105018835A patent/CN102963049A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102442038A (en) * | 2010-09-30 | 2012-05-09 | 三芳化学工业股份有限公司 | Laminated material and its manufacture method |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103568448A (en) * | 2013-10-08 | 2014-02-12 | 东莞市雄林新材料科技有限公司 | Hot melt adhesive attached with dry-type PU (polyurethane) on wet-type PU |
| CN109233661A (en) * | 2017-05-05 | 2019-01-18 | 上海海优威新材料股份有限公司 | Novel multi-layer caking property film based on cross-linking radiation substrate and preparation method thereof |
| CN109624422A (en) * | 2018-11-05 | 2019-04-16 | 安徽安利材料科技股份有限公司 | A kind of TPU high/low temperature film composite webs and preparation method thereof |
| CN109624422B (en) * | 2018-11-05 | 2021-04-20 | 安徽安利材料科技股份有限公司 | TPU high-low temperature film composite mesh cloth and preparation method thereof |
| CN109256030A (en) * | 2018-11-23 | 2019-01-22 | 广州山木新材料科技有限公司 | A kind of label for clothing and preparation method thereof with spontaneous heating |
| CN109648934A (en) * | 2018-11-30 | 2019-04-19 | 安徽安利材料科技股份有限公司 | A kind of preparation method of the dual-purpose Synthetic Leather of the seamless sewing of sports play shoes |
| CN112622392A (en) * | 2019-09-20 | 2021-04-09 | 美瑞新材料股份有限公司 | Thermoplastic polyurethane foam product with surface coating and preparation method thereof |
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Application publication date: 20130313 |