Anti-fatigue elastic fabric

Abstract

An elastic fabric with anti-fatigue property, with three types of constituent yarns, in which the first type of yarns is made of chemical filaments, the second type of yarns and third type of yarns are elastic yarns made of the same or different materials, but preferably having different fiber densities, and the first type of yarns and second type of yarns form a number of locking nodes via inter-looping of the yarns and the second type of yarns and third type of yarns form a number of locking points by melting of the yarns during a heat treating process.

1 . An elastic fabric with anti-fatigue property, comprising a first type of yarns, a second type of yarns, and a third type of yarns; said first type of yarns being made of chemical filaments, and said second type of yarns and said third type of yams being elastic yarns made of the same or different materials; and further comprising a plurality of locking nodes formed from said first type of yarns and second type of yams and a plurality of locking points between said second type of yarns and said third type of yarns. 
     
     
         2 . The elastic fabric of  claim 1 , wherein said yarns of first type are made of polyester or polyamide, and said yarns of second type and third type are made of spandex. 
     
     
         3 . The elastic fabric of  claim 2 , wherein said yarns of second type and third type are of different fiber densities. 
     
     
         4 . The elastic fabric of  claim 3 , wherein said yarns of second type are 10-70 deniers and said yarns of third type are 70-420 denier. 
     
     
         5 . The elastic fabric of  claim 4 , wherein said plurality of locking points are formed during a heat treating process at a temperature between 180° C. and 220° C. 
     
     
         6 . The elastic fabric of  claim 5 , wherein said heat treating process lasts 1 to 2 minutes. 
     
     
         7 . The elastic fabric of  claim 1 , wherein said yarns of first type adopts a six-row variable pillar stitch, in which an open-ended loop and a closed-ended loop combine with each other alternatively. 
     
     
         8 . The elastic fabric of  claim 7 , wherein said yarns of second type adopts a single variable pillar stitch, in which open-ended loops and weft insertion structures combine with each other alternatively. 
     
     
         9 . The elastic fabric of  claim 8 , wherein said yarns of third type adopts a three-stitch Weft insertion structure, in which the yarns are not looping in the fabric.