Double-component windproof ventilating film

A windproof, breathable, two-component technology, applied in the direction of synthetic resin layered products, layered products, chemical instruments and methods, etc.

Inactive Publication Date: 2014-06-18
HUZHOU SENNUO FLUORINE MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] With the improvement of people's living standards, people's requirements for quality of life are getting higher and higher. For example, people's requirements for sports and leisure clothing are not only comfor

Method used

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  • Double-component windproof ventilating film

Examples

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Embodiment Construction

[0014] Examples, see attached figure 1 , a two-component windproof and breathable film, which includes a polytetrafluoroethylene base film 1 that has been processed by mixing, billeting, extrusion, calendering, stretching and sintering, and the top of the polytetrafluoroethylene base film is compounded One layer of microporous PU layer 2, the microporous PU layer and the polytetrafluoroethylene base film layer are combined by a release paper transfer method to form a two-component film.

[0015] The thickness of the PTFE base film is 4um, and the pore size of the PTFE base film is 1um. The PTFE base film has high temperature resistance, breathability and waterproof. In the film state, there are as many as 9 billion per square inch. The size of these small holes is one ten-thousandth of that of water droplets, but 700 times larger than that of water vapor molecules, which can effectively prevent liquid water from penetrating, and gaseous water molecules can pass through freely....

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Abstract

The invention relates to a double-component windproof ventilating film which comprises a polytetrafluoroethylene basic film subjected to mixing, blank manufacturing, extrusion, rolling, stretching and sintering solidification treatment, wherein a layer of microporous PU (polyurethane) is compounded on the polytetrafluoroethylene basic film; the polytetrafluoroethylene basic film is 2-5 microns thick; the aperture of the polytetrafluoroethylene basic film is 0.5-3 microns; the microporous PU layer is 3-6 microns thick. The double-component film is ultrathin, is high in comfortableness, has ventilating, windproofing and warming functions, can resist ultraviolet and is suitable for various products made of functional materials for sports, relaxation, maternal and children health care and the like.

Description

Technical field: [0001] The invention relates to the field of windproof and breathable membranes, in particular to a two-component windproof and breathable membrane. Background technique: [0002] With the improvement of people's living standards, people's requirements for quality of life are getting higher and higher. For example, people's requirements for sports and leisure clothing are not only comfortable to wear, light in weight, but also breathable, windproof, waterproof, UV-resistant, Many functions such as moisture permeability, and the products on the existing market all can't reach above-mentioned function. [0003] Polytetrafluoroethylene microporous membrane is a flexible and elastic microporous material with high porosity, uniform pore size distribution, and air-permeable and impermeable properties. It has many outstanding advantages that traditional filter membranes do not have, and it has wide applicability and is widely used in the fields of clothing, househ...

Claims

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Application Information

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IPC IPC(8): B32B27/08B32B27/30B32B27/40B32B3/24
Inventor 王中华
Owner HUZHOU SENNUO FLUORINE MATERIAL TECH
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