Windproof and water resistant composite fabric

Details Windproof and water resistant composite fabric Windproof and water resistant composite fabric

B - Operations, Transporting

32

B

B32B 5/18 (2006.01) B32B 5/04 (2006.01) B32B 7/12 (2006.01)

Patent

CA 2281057

A wind resistant and water vapor permeable composite fabric is provided. The composite fabric includes an inner fabric layer, an outer fabric layer, and an intermediate vapor barrier. The vapor barrier may be selected from an adhesive material or an adhesive/membrane combination that is designed so that the fabric has a variable water vapor diffusion resistance which substantially decreases as air speed impinging on the fabric increases.

La présente invention concerne un tissu composite perméable à la vapeur d'eau et à l'épreuve du vent. Le tissu composite comprend une couche de tissu intérieure, une couche de tissu extérieure et un pare-vapeur intermédiaire. Cette dernière peut être choisie d'un matériau adhésif ou d'une combinaison d'adhésif et de membrane conçue de telle sorte que le tissu possède une résistance variable à la diffusion de la vapeur d'eau, ladite résistance diminuant de manière substantielle à mesure que la vitesse de l'air incidente sur le tissu augmente.

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