Two-layer fabric and heat-resistant protective clothing...

D - Textiles – Paper – 03 – D

Patent

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Details

D03D 15/12 (2006.01) A41D 31/00 (2006.01) D03D 11/00 (2006.01) A41D 13/00 (2006.01)

Patent

CA 2618266

A two-layer woven fabric which comprises a base cloth part constituting the front side of the woven fabric and a reinforcing cloth part constituting the back side of the woven fabric and reinforcing the whole woven fabric, the two parts having been united with each other, wherein (a) the base cloth part of the two-layer woven fabric is a flame-retardant woven fabric composed of warps and wefts comprising 30 wt.% or more flame-retardant fibers having an LOI of 26 or higher and a fiber strength of 8 cN/dtex or lower, (b) the reinforcing cloth part of the two-layer woven fabric is a reinforcing woven fabric composed of warps and wefts comprising reinforcing yarns consisting mainly of heat-resistant high-strength fibers having a fiber strength of 15 cN/dtex or higher, and (c) the base cloth part has been connected to the reinforcing cloth part by the warps and wefts of the base cloth part and the two parts thus form a united structure.

La présente invention se rapporte à une étoffe tissée à deux couches qui comprend une pièce de tissu de base constituant le côté avant de l'étoffe tissée et une pièce de tissu de renforcement constituant le côté arrière de l'étoffe tissée et renforçant l'étoffe tissée entière, les deux pièces ayant été unies l'une à l'autre, dans laquelle (a) la pièce de tissu de base de l'étoffe tissée à deux couches est une étoffe tissée retardant la flamme composée de chaînes et de trames comprenant 30% du poids ou plus de fibres retardant la flamme ayant un indice critique d'oxygène de 26 ou plus et une résistance de fibre de 8 cN/dtex ou moins, (b) la pièce de tissu de renforcement de l'étoffe tissée à deux couches est une étoffe tissée de renforcement composée de chaînes et de trames comprenant des fils de renforcement composés principalement de fibres à haute résistance anti-chaleur ayant une force de fibre de 15 cN/dtex ou plus, (c) la pièce de tissu de base a été connectée à la pièce de tissu de renforcement par les chaînes et les trames de la pièce de tissu de base et les deux pièces forment ainsi une structure unie.

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