Core yarn and woven and knitted fabric

Abstract

It is an object of the present invention to provide a core yarn capable of spinning the higher-grade yarn having the higher yarn count from specified lower-grade raw material and the core yarn makes its texture-feeling, strength and extension rate equal to that of natural fibers. The core yarn is formed of spun yarn including the core formed of filament yarn and the sheath formed of staple, and the filament yarn is a monofilament false twist textured yarn.

1 . A core yarn formed of a spun yarn comprising a core formed of filament yarn and sheath formed of staple fiber, wherein said filament yarn consists of single or plural monofilament false twist textured yarn. 
   
   
       2 . The core yarn according to  claim 1 , wherein said core is formed of an untwisted yarn and wrapped around with staple fiber while staying the untwisted state. 
   
   
       3 . The core yarn according to  claim 2 , wherein said core is formed of a polyester monofilament false twist textured yarn. 
   
   
       4 . The core yarn according to  claim 1 , wherein the thickness rate of said core is preferably not more than approximately 20 to 40% of the whole the core yarn, and rate of said sheath is not less than approximately 80 to 60%. 
   
   
       5 . The core yarn according to  claim 4 , wherein said staple fiber is cotton, said core is a polyester monofilament false twist textured yarn of 20 denier, and a cotton yarn having cotton yarn count Ne20 to Ne100 is spun. 
   
   
       6 . The core yarn according to  claim 1 , wherein the core yarn is spun by air spinning machine in which fasciated spun yarn is spun while binding around the untwisted core with sheath fiber. 
   
   
       7 . Woven and knitted fabrics woven or knitted using the core yarn according to  claim 1 . 
   
   
       8 . Woven and knitted fabrics woven or knitted using the core yarn according to  claim 2 . 
   
   
       9 . Woven and knitted fabrics woven or knitted using the core yarn according to  claim 3 . 
   
   
       10 . Woven and knitted fabrics woven or knitted using the core yarn according to  claim 4 . 
   
   
       11 . Woven and knitted fabrics woven or knitted using the core yarn according to  claim 5 . 
   
   
       12 . Woven and knitted fabrics woven or knitted using the core yarn according to  claim 6 .