Fire Protection Fabric

Abstract

A protective fabric with a weight/area ratio of less than 300 g/m2 that is intended to form the outer layer of a garment for protection from fire, such as a garment for firefighters for example. It is composed of warp and weft threads that come from at least two types of thread that are resistant to fire, namely a first thread type of the meta-aramide type, a second high-modulus para-aramide type thread with colour variations over its length, and if necessary, in the warp, a third para-aramide type thread that does not display colour variations but is sensitive to ultraviolet light. It includes 15 to 50% of threads of the second type, and if necessary of the third type. Its weave, preferably of the warp double-sided type, is determined so that, on the outer face of the fabric, the warp threads of the second type, and if necessary of the third type, are almost totally masked.

1 . A protective fabric with a weight/area ratio of less than 300 g/m2 that is intended to form the outer layer of a garment for protection from fire, such as a garment for firefighters for example, characterised in that it is composed of warp and weft threads that come from at least two types of threads that are resistant to fire, namely a first thread of the meta-aramide type, a second high-modulus para-aramide type thread with colour variations over its length, and if necessary, in the warp, a third type of para-aramide type thread that does not display colour variations but is sensitive to ultraviolet radiation, and in that it includes from 15 to 50% of threads of the second type, and if necessary of the third type, and in that the weave of the said fabric is of the warp double-sided type and is determined so that, on the outer face of the fabric, the warp threads of the second type, and if necessary of the third type, are almost totally masked. 
     
     
         2 . The fabric according to  claim 1 , characterised in that all the warp and weft threads in para-aramide are of the second type. 
     
     
         3 . The fabric according to  claim 1 , characterised in that all the warp threads in para-aramide are of the third type. 
     
     
         4 . The fabric according to one of  claims 1  to  3 , characterised in that the threads of the second type, and if necessary of the third type, represent from 30 to 50% of the warp threads, and the threads of the second type represent from 30 to 50% of the weft threads. 
     
     
         5 . The fabric according to one of  claims 1  to  4 , characterised in that the threads of the first type and of the second type are made up in the order of 24 to 32 tex in one or two ply. 
     
     
         6 . The fabric according to one of  claims 1  to  5 , characterised by a basic weave, that has a warp pattern of three threads of the first type for every one thread of the second type, and a laying-in or weft pattern of one thread of the first type for every one thread of the second type. 
     
     
         7 . The fabric according to  claim 6 , with a weigh/area ratio of the order of 220 g/m2 and with a final proportion of 66.3% of meta-aramide, 33% of para-aramide and 0.7% of anti-static fibres, 
     
     
         8 . The fabric according to one of  claims 1  to  5 , characterised by a basic weave that has a warp pattern of four threads of the first type for every one thread of the second type and a weft pattern of one thread of the first type for every one thread of the second type.