False-twist textured yarn, and clothes, woven knitted product, twist yarn, and composite false-twist textured yarn including same

Abstract

A false-twist textured yarn is provided exhibiting a high sensitiveness feel of worsted-wool having natural appearance with glare suppressed, and a composite false-twist textured yarn, a twist yarn, a woven or knitted fabric, and clothing including the false-twist textured yarn, the false-twist textured yarn including a polyester-based thermoplastic resin A and a polyester-based thermoplastic resin B and satisfying the following requirements: (1) a difference (M A −M B ) between a weight-average molecular weight M A of the resin A and a weight-average molecular weight M B of the resin B is 2000 to 15000; (2) resins A and B are eccentrically joined; (3) an apparent thick-to-thin ratio (D thick /D thin ) of the false twist textured yarn is 1.05 to 3.00; and (4) the false-twist textured yarn has a slit in a fiber axis direction and a crack in a direction substantially orthogonal to the fiber axis direction on a surface of the false-twist textured yarn.

1 . A false-twist textured yarn comprising a polyester-based thermoplastic resin A and a polyester-based thermoplastic resin B, the false-twist textured yarn satisfying following requirements:
 (1) a difference (M A −M B ) between a weight-average molecular weight M A  of the polyester-based thermoplastic resin A and a weight-average molecular weight M B  of the polyester-based thermoplastic resin B is 2,000 to 15,000;   (2) the polyester-based thermoplastic resin A and the polyester-based thermoplastic resin B are eccentrically joined;   (3) an apparent thick-to-thin ratio (D thick /D thin ) of the false-twist textured yarn is 1.05 to 3.00; and   (4) the false-twist textured yarn has a slit in a fiber axis direction and a crack in a direction substantially orthogonal to the fiber axis direction on a surface of the false-twist textured yarn.   
     
     
         2 . The false-twist textured yarn according to  claim 1 , wherein the false-twist textured yarn has a single yarn fineness of 3.0 dtex or more. 
     
     
         3 . The false-twisted yarn according to  claim 1 , wherein the false-twist textured yarn has a stretch recovery rate (CR) of 25.0% or more. 
     
     
         4 . A composite false-twist textured yarn comprising the false-twist textured yarn according to  claim 1  and at least one kind of another thread. 
     
     
         5 . The composite false-twist textured yarn according to  claim 4 , wherein the other thread is an explicit crimping yarn. 
     
     
         6 . A twist yarn comprising the false-twist textured yarn according to  claim 1 , wherein the twist yarn has a twist coefficient of 1200 to 6000. 
     
     
         7 . A woven or knitted fabric comprising the false-twist textured yarn according to  claim 1  in at least a part of the woven or knitted fabric. 
     
     
         8 . Clothing comprising the woven or knitted fabric according to  claim 7  in at least a part of the clothing. 
     
     
         9 . A woven or knitted fabric comprising the twist yarn according to  claim 6  in at least a part of the woven or knitted fabric. 
     
     
         10 . Clothing comprising the woven or knitted fabric according to  claim 9  in at least a part of the clothing. 
     
     
         11 . A twist yarn comprising the composite false-twist textured yarn according to  claim 4 , wherein the twist yarn has a twist coefficient of 1200 to 6000. 
     
     
         12 . A woven or knitted fabric comprising the composite false-twist textured yarn according to  claim 4  in at least a part of the woven or knitted fabric. 
     
     
         13 . Clothing comprising the woven or knitted fabric according to  claim 12  in at least a part of the clothing. 
     
     
         14 . A woven or knitted fabric comprising the twist yarn according to  claim 11  in at least a part of the woven or knitted fabric. 
     
     
         15 . Clothing comprising the woven or knitted fabric according to  claim 14  in at least a part of the clothing.