Stretchable Fabric

Abstract

Disclosed is a fabric comprising first and second warp threads and first and second weft threads. Said fabric is characterized in that the first warp threads and the first weft threads form a basic fabric while the second warp threads, along with the second weft threads, form a covering fabric that adjoins the basic fabric, the second warp threads also being interwoven with the first weft threads.

1 . An airbag stretch fabric comprising first and second warp threads and first and second weft threads, the first warp threads and the first weft threads form a basic ply and the second warp threads with the second weft threads form a topping ply along with the basic ply, said second warp threads being interwoven also with said first weft threads and said first warp threads and said second warp threads are arranged so that they, after stretching of the airbag fabric, lie alternatingly substantially juxtaposed so that a second weft thread always locates alongside a first weft thread. 
   
   
       2 . An airbag stretch fabric comprising first and second warp threads and first and second weft threads, the modulus of elasticity of the first warp threads is lower than the modulus of elasticity of the second warp threads and that said second warp threads are interwoven with a lower warp tension than the first warp threads and that the first weft threads lie in a basic plane and the weft threads lie in a topping plane along with the basic plane, said first warp threads and said second warp threads being arranged so that, after stretching of the fabric they lie alternatingly substantially juxtaposed so that a second weft thread always locates alongside a first weft thread. 
   
   
       3 . The fabric as set forth in  claim 1 , wherein said fabric is woven in the unloaded condition with a same crimp of said first warp threads and of said second warp threads, the strain of said second warp threads being higher than that of said first warp threads. 
   
   
       4 . The fabric as set forth in  claim 1 , wherein said fabric comprises in predefined portions warp threads and weft threads with specifically selected parameters such modulus of elasticity or also in a specifically selected sequence. 
   
   
       5 . The fabric as set forth in  claim 2 , wherein said fabric is woven in the unloaded condition with a same crimp of said first warp threads and of said second warp threads, the strain of said second warp threads being higher than that of said first warp threads. 
   
   
       6 . The fabric as set forth in  claim 2 , wherein said fabric comprises in predefined portions warp threads and weft threads with specifically selected parameters such modulus of elasticity or also in a specifically selected sequence.