Elastic air textured yarn and its manufacturing method

Abstract

The present invention relates to an air textured yarn with elastic character, of which the purpose is to eliminate the shortcoming of making one comfortless while wearing clothes made of conventional air textured yarn by its lack of elasticity; the present invention is characterized in: the inner core yarn, which is made from the heat plastic fiber with self-curling elastic character, and the outer enclosing yarn, which is made from an appropriate heat plastic fiber in accordance with the function need of various fabric, are air textured processed to manufacture a high class yarn with elastic character, which is of industrial applicability.

What is claimed is:  
     
         1 . An elastic air textured yarn, comprising an inner core yarn and an outer enclosing effect yarn, wherein said core yarn is heat plastic fiber with self-curling elastic character and said effect yarn is a single or more than one ordinary heat plastic fiber.  
     
     
         2 . An elastic air textured yarn as defined in  claim 1 , wherein said core yarn is manufactured, through melt-compounding two heat plastic polymers with different shrinkage rate in an appropriate composition, to be a heat plastic fiber with self-curling elastic character.  
     
     
         3 . An elastic air textured yarn as defined in  claim 2 , of which the self-curling elastic character appears after heat treatment so as to form a spring shape screw.  
     
     
         4 . An elastic air textured yarn as defined in  claim 3 , of which the elasticity depends on the composition ratio of core yarn and effect yarn.  
     
     
         5 . A manufacturing method of an air textured yarn, comprising procedures as follows: 
 (1) to manufacture said core yarn, spinning two heat plastic polymers with different shrinkage rate by a melt compound spinning nozzle, in an appropriate composition ratio, to produce a heat plastic fiber with self-curling elastic character    (2) to manufacture said effect yarn, using a single or more than one ordinary heat plastic fiber;    (3) said obtained core yarn and effect yarn are severally fed into different rollers and then are together fed into an air textured process means at different feeding rates to be air textured-processed so as to form an elastic air textured yarn; and    (4) said manufactured elastic air textured yarn is further fed into a roller and a winding roll to be wound up.    
     
     
         6 . A manufacturing method of an air textured yarn as defined in  claim 5 , wherein said procedure of feeding said core yarn and said effect yarn together into an air textured process means to form an elastic air textured yarn is accomplished by injecting compressed air into through an injection and twist device of air textured process means for staggering and compounding said core yarn and said effect yarn.