abstract |
The present invention provides an asymmetric porous PTFEnmembrane for clothing having little change over time and conventionallynknown properties of a porous PTFE molded article such as waternpermeability resistance, air permeability, sealing properties and electricnproperties, in which durability and water vapor permeability arenimproved by strengthening adhesion strength with fabric. Specifically,nthe present invention relates to an asymmetric porous PTFE membranenfor clothing comprising a dense skin layer and a continuously foamednporous layer, whereinn (1) the contact angle of water to the surface of the skin layer is 120 ton140°; and (2) the diffuse reflectance of light of the skin layer is 91 to 94 %. |