A stretchable fabric and a method, a wrinkle-free fabric and garments thereof

Abstract

Described here in various embodiments is a stretchable yarn, a stretchable fabric made of the stretchable yarn, and a wrinkle-free stretchable garments having the stretchable fabric or manufactured from the stretchable fabric. Said stretchable yarn comprises a core yarn and staple fibres wherein the core yarn manufactured by intermingling a filament and an elastomeric yarn and said core yarn is bleded with the staple fibers.

We claim: 
     
         1 . A woven stretch fabric comprising a plurality of warp yarns and a plurality of weft yarns wherein either weft yarns or warp yarns, or both, are stretchable yarns, each stretchable yarn includes a core yarn made of filament and elastomeric yarn and said core yarn is blended with staple fibres. 
     
     
         2 . The woven stretch fabric as claimed in  claim 1 , wherein the weft yarns preferably comprise the streachable yarns to make fabric stretchable in two direction. 
     
     
         3 . The woven stretch fabric as claimed in  claim 1 , wherein the warp and weft yarns comprises the streachable yarns to make fabric stretchable in four directions. 
     
     
         4 . The woven stretch fabric as claimed in  claim 1 , wherein the warp count of the fabric ranges from 8 s Ne to 100 s Ne and the weft count of the fabric ranges from 8 s Ne to 70 s Ne. 
     
     
         5 . The woven stretch fabric as claimed in  claim 1 , wherein the woven stretch fabric is a wrinkle resistant fabric further comprising an impregnated resin or a sprayed on resin. 
     
     
         6 . The woven stretch fabric as claimed in  claim 1 , wherein the core yarn is obtained by intermingling a filament and an elastomeric yarn by nipping of the filament and the elastomeric yarn with the nip frequency ranging from 80-200 nips per meter. 
     
     
         7 . The woven stretch fabric as claimed in  claim 6 , wherein the filament denier of the stretchable yarn ranges 20 D to 300 D. 
     
     
         8 . The woven stretch fabric as claimed in  claim 6 , wherein the filament yarn comprises polyester filaments. 
     
     
         9 . The woven stretch fabric as claimed in  claim 1 , wherein the stretchable yarn comprises a polyester yarn in an amount of about 15% to about 20% by weight of the total weight of the yarn. 
     
     
         10 . The woven stretch fabric as claimed in  claim 6 , wherein the elastomeric denier of the stretchable yarn ranges from 20 D to 300 D. 
     
     
         11 . The woven stretch fabric as claimed in  claim 6 , wherein the elastomeric yarn comprises polyurethane. 
     
     
         12 . The woven stretch fabric as claimed in  claim 1 , wherein the stretchable yarn comprises a polyurethane yarn in an amount of about 2% to about 6% by weight of the total weight of the yarn. 
     
     
         13 . The woven stretch fabric of  claim 1 , comprising the staple fibre in an amount of about 75% to about 80% by weight of the total weight of the stretchable yarn. 
     
     
         14 . The woven stretch fabric of  claim 1 , wherein the staple fibres are selected from the group consisting of cotton fibers, regenerated cellulose fibers, manmade fibers, and combinations thereof. 
     
     
         15 . A method for manufacturing a woven stretch fabric or garment thereof, comprising the steps of
 a) providing a plurality of warp yarns;   b) providing a plurality of weft yarns comprising stretchable yarns, each stretchable yarn having a core yarn of a filament and an elastomeric yarn wherein the core yarn is covered by staple fibres; and   c) weaving the warp yarns and weft yarns to form a stretchable fabric.   
     
     
         16 . The method as claimed in  claim 15 , further comprising step of treating the stretchable fabric with liquid ammonia. 
     
     
         17 . The method as claimed in  claim 16  further comprising step of optionally dipping the fabric or garment thereof in a resin to obtain a wrinkle-free fabric or garment thereof. 
     
     
         18 . The method as claimed in  claim 15 , wherein the warp yarns comprises stretchable yarns. 
     
     
         19 . A wrinkle-free garment manufactured by treating a woven stretch fabric as claimed in  claim 1  with resin using a pre-cure or a post-cure method. 
     
     
         20 . A stretchable yarn for manufacturing stretchable fabric, comprising a core yarn and staple fibres wherein the core yarn manufactured by intermingling a filament and an elastomeric yarn, said core yarn is bleded with the staple fibers on ring spinning machine for covering the core yarn with staple fibers. 
     
     
         21 . A wrinkle-free garment manufactured by
 manufacturing a woven stretch fabric or garment thereof by a method as claimed in  claim 15 , and   treating the woven stretch fabric or garment thereof with resin using a pre-cure or a post-cure method.