Thermal protection fabric

Abstract

The invention concerns a fabric comprising a weave of warp yarns in one direction and of weft yarns in the perpendicular direction. Said fabric comprises, in one direction, yarns consisting of alternating continuous filaments and spun yarns, and in the other direction, yarns produced from spun yarns, the various continuous filaments being produced in flame retardant and non-fusible materials.

1 . A woven thermal protection fabric comprising a weave of warp yarns in one direction and of weft yarns in the perpendicular direction, characterized in that it comprises, in one direction, yarns consisting of an alternation of continuous filaments and of staple fiber yarns and, in the other direction, yarns made from staple fiber yarns, the various continuous filaments and staple fiber yarns being made of non-inflammable and non-melting materials.  
     
     
         2 . The woven fabric as claimed in  claim 1 , characterized in that the continuous filaments are made of a meta-aramid, such as that known under the trademark Nomex.  
     
     
         3 . The woven fabric as claimed in either of claims  1  and  2 , characterized in that the staple fiber yarns combined alternately with the continuous filaments are made of a meta-aramid, such as that known under the trademark Nomex.  
     
     
         4 . The woven fabric as claimed in one of  claims 1  to  3 , characterized in that the yarns consisting of staple fiber yarns in the other direction comprise fibers of a meta-aramid, such as that known under the trademark Nomex, and fibers of a para-aramid, such as that known under the trademark Kevlar.  
     
     
         5 . The woven fabric as claimed in  claim 4 , characterized in that the para-aramid fibers are arranged as core and the meta-aramid fibers are arranged as cover.  
     
     
         6 . The woven fabric as claimed in one of  claims 1  to  5 , characterized in that the various yarns in the two directions are combined so as to form a double-sided complex satin-type weave, such that the external face of the fabric is essentially composed of continuous filaments and the internal face is essentially composed of staple fiber yarns.  
     
     
         7 . The woven fabric as claimed in  claim 6 , characterized in that the staple fiber yarns, dispersed among the continuous filaments in one direction, are linked with the yarns of the other direction on the rear face of the fabric and in that they have a higher linear density than the continuous filaments.  
     
     
         8 . The woven fabric as claimed in one of  claims 1  to  7 , characterized in that the yarns, in one direction, consist of an alternation of continuous filaments and of staple fiber yarns in proportions of 5 to 1.  
     
     
         9 . The woven fabric as claimed in  claim 4 , characterized in that the yarns, in one direction, are produced from staple fiber yarns comprising approximately ⅓ of para-aramid fibers and ⅔ of meta-aramid fibers.  
     
     
         10 . The woven fabric as claimed in all of  claims 1  to  9 , characterized in that it comprises warp yarns consisting of continuous filaments of a meta-aramid, of Nomex type, of 220 dtex linear density and of staple fiber yarns of a meta-aramid, of Nomex type, of 60/2 Nm linear density in the proportion of 5 to 1, and weft yarns consisting of staple fiber yarns of 55/2 Nm linear density that are produced using the core yarn technique, composed of about 33% of Kevlar-type para-aramid fibers as core and 67% of Nomex-type meta-aramid fibers as cover, the weave being of the satin type with filaments on the front face, while the staple fiber yarns appear predominantly on the back face where they are linked with the warp yarns to form a reinforcing mesh, the fabric optionally undergoing a waterproofing-type finishing treatment making it possible to provide water-repellency characteristics.