Skeleton Yarn and Denim Fabric

Abstract

Disclosed is skeleton yarn, comprising core-ply stretch yarn positioned at the center, middle-ply fine fiber or fine yarn spun made of fiber coating the surface of the core-ply stretch yarn, and outer-ply coarse fiber or coarse yarn spun made of fiber coating the surface of the middle-ply fine fiber or fine yarn spun made of fiber, wherein the middle-ply fine fiber or fine yarn spun made of fiber is high twist fiber, and the outer-ply coarse fiber or coarse yarn spun made of fiber is loose twist fiber. A novel retro denim fabric made from the skeleton yarn can be subjected to a normal post-finishing shrinking process, and the problems of unstable garment model and the like caused by unstable washing shrinkage can be avoided.

1 . A skeleton yarn, comprising: core-ply stretch yarn positioned at the center, middle-ply fine fiber or fine yarn spun made of fiber coating the surface of the core-ply stretch yarn, and outer-ply coarse fiber or coarse yarn spun made of fiber coating the surface of the middle-ply fine fiber or fine yarn spun made of fiber. 
     
     
         2 . The skeleton yarn according to  claim 1 , wherein the middle-ply fine fiber or fine yarn spun made of fiber is high twist fiber, and the outer-ply coarse fiber or coarse yarn spun made of fiber is loose twist fiber. 
     
     
         3 . The skeleton yarn according to  claim 1 , wherein the spinning mode of the skeleton yarn is as follows: firstly, spinning the middle-ply fine fiber or fine yarn spun made of fiber with a twist being 5-15% higher than the normal spinning twist, and spinning the obtained product with the core-ply stretch yarn by adopting a loose twist spinning process; and then, coating the outer-ply coarse fiber or coarse yarn spun made of fiber on the middle-ply fine fiber or fine yarn spun made of fiber and the core-ply stretch yarn by adopting the loose twist spinning process. 
     
     
         4 . The skeleton yarn according to  claim 1 , wherein the spinning mode of the skeleton yarn is as follows: firstly, spinning the middle-ply fine fiber or fine yarn spun made of fiber with a twist being 10% higher than the normal spinning twist, and spinning the obtained product with the core-ply stretch yarn by adopting a spinning process with a twist of 25-90T/10 cm; and then, coating the outer-ply coarse fiber or coarse yarn spun made of fiber on the middle-ply fine fiber or fine yarn spun made of fiber and the core-ply stretch yarn by adopting the spinning process with the twist of 25-90T/10 cm. 
     
     
         5 . The skeleton yarn according to  claim 4 , wherein the spinning mode of the skeleton yarn is as follows: firstly, spinning the middle-ply fine fiber or fine yarn spun made of fiber with a twist being 10% higher than the normal spinning twist, and spinning the obtained product with the core-ply stretch yarn by adopting a spinning process with a minimum twist of about 35T/10 cm. 
     
     
         6 . The skeleton yarn according to  claim 1 , wherein the spinning mode of the skeleton yarn is as follows: the outer-ply coarse fiber or coarse yarn spun made of fiber coats the middle-ply fine fiber or fine yarn spun made of fiber and simultaneously twists and coats the core-ply stretch yarn, wherein the outer-ply coarse fiber or coarse yarn spun made of fiber is twisted and coated by a loose twist method, and the middle-ply fine fiber is twisted and coated by a high twist method. 
     
     
         7 . The skeleton yarn according to  claim 6 , wherein the spinning mode of the skeleton yarn is as follows: the outer-ply coarse fiber or coarse yarn spun made of fiber is twisted and coated with a twist of 25-90T/10 cm, and the middle-ply fine fiber is twisted and coated with a twist being 5-15% higher than the normal spinning twist. 
     
     
         8 . The skeleton yarn according to  claim 1 , wherein the yarn count of the skeleton yarn is 5S-50S, the yarn count scope of the middle-ply fine fiber or fine yarn spun made of fiber is 10S-60S, and the yarn count scope of the core-ply stretch yarn is 20D-450D. 
     
     
         9 . The skeleton yarn according to  claim 1 , wherein the yarn count of the skeleton yarn is 6S-40S. 
     
     
         10 . The skeleton yarn according to  claim 1 , wherein the outer-ply coarse fiber or coarse yarn spun made of fiber uses short fiber with a fiber length of 8 mm-48 mm. 
     
     
         11 . The skeleton yarn according to  claim 1 , wherein the outer-ply coarse fiber or coarse yarn spun made of fiber is fiber with a cooling, quick drying or heat preservation function. 
     
     
         12 . The skeleton yarn according to  claim 1 , wherein the outer-ply coarse fiber or coarse yarn spun made of fiber is cotton yarn, Tencel fiber, Modal fiber, viscose fiber, polyester cotton blended yarn, Tencel cotton blended yarn or Modal cotton blended yarn. 
     
     
         13 . The skeleton yarn according to  claim 1 , wherein the middle-ply fine fiber or fine yarn spun made of fiber uses short fiber. 
     
     
         14 . The skeleton yarn according to  claim 1 , wherein the middle-ply fine fiber or fine yarn spun made of fiber uses cotton, cotton-containing blended yarn, non-cotton, non-cotton blended yarn or blended yarn of two or more kinds of fiber. 
     
     
         15 . The skeleton yarn according to  claim 1 , wherein the middle-ply fine fiber or fine yarn spun made of fiber uses cotton yarn, polyester cotton blended yarn, Tencel cotton blended yarn or Modal cotton blended yarn. 
     
     
         16 . The skeleton yarn according to  claim 1 , wherein the middle-ply fine fiber or fine yarn spun made of fiber is OE yarn. 
     
     
         17 . The skeleton yarn according to  claim 1 , wherein the twist coefficient of the middle-ply fine fiber or fine yarn spun made of fiber is 3.0-6.0. 
     
     
         18 . A denim fabric containing the skeleton yarn according to  claim 1 . 
     
     
         19 . A denim fabric, wherein the weft yarn of the denim fabric uses the skeleton yarn according to  claim 1 . 
     
     
         20 . The denim fabric according to  claim 19 , using a 3/1 twill, 2/1 twill or 1/1 plain weave structure.