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Polyurethane composite film

A composite film, polyurethane technology, applied in synthetic resin layered products, layered products, chemical instruments and methods, etc., can solve the problems of short life, easy wear, poor surface strength of PTFE film, etc. The effect of surface strength, improving quality and grade, and high wear resistance

Inactive Publication Date: 2013-04-03
昆山华富新材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the surface strength of PTFE film is not good, it is easy to wear, and its life is short, which seriously affects the quality of clothing fabrics formed by composite film and textiles.

Method used

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  • Polyurethane composite film
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  • Polyurethane composite film

Examples

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Embodiment Construction

[0017] A polyurethane composite film, such as figure 1 , including a polyurethane layer 1 and a polytetrafluoroethylene layer 2, the polyurethane layer has two opposite sides, and the polytetrafluoroethylene layer is compounded on one side of the polyurethane layer.

[0018] Such as figure 2 As shown, a textile layer 3 is also compounded on the other side of the polyurethane layer.

[0019] Such as image 3 As shown, a textile layer is compounded on the surface of the polytetrafluoroethylene layer away from the polyurethane layer.

[0020] The above-mentioned polyurethane layer is a hydrophilic swelling type polyurethane layer.

[0021] The above-mentioned polyurethane layer may also be a moisture-permeable non-swellable microporous air-permeable polyurethane layer.

[0022] The above-mentioned polyurethane layer can also be a waterproof, moisture-permeable, hydrophilic and non-swellable polyurethane layer.

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Abstract

The invention discloses a polyurethane composite film comprising a polyurethane layer and a polytetrafluoroethylene layer. The polyurethane layer comprises two opposite sides, and the polytetrafluoroethylene layer is positioned on one side of the polyurethane layer. A layer of textile fabric can be composed on one or both of the outer sides of the composite film. The composite film is air-permeating and moisture-permeating, and has high wear resistance. According to the invention, the quality of composite clothing fabric formed by the composite film and textile product is effectively improved, and performance requirements on functional clothing fabric are satisfied.

Description

technical field [0001] The invention relates to a structure of a composite film, in particular to a polyurethane composite film. Background technique [0002] In recent years, with the vigorous development of outdoor sports such as mountaineering, skiing and sailing, and some powerful departments such as the military and police have higher and higher requirements for functional clothing fabrics, some composite fabrics have emerged as the times require, such as poly A double-layer fabric formed by compounding tetrafluoroethylene (PTFE) film and textile fabric. However, the surface strength of PTFE film is poor, easy to wear, and has a short life, which seriously affects the quality of clothing fabrics formed by composite films and textiles. Contents of the invention [0003] In order to overcome the above defects, the present invention provides a polyurethane composite film. The composite film is not only breathable and moisture permeable, but also has high wear resistance...

Claims

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Application Information

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IPC IPC(8): B32B27/08B32B27/30B32B27/40B32B27/12
Inventor 夏汉忠
Owner 昆山华富新材料股份有限公司
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