Invention of the hollow stretch yarn

Abstract

A substantially hollow structured elastic core-spun yarn has a dissoluble core and main stretch core covered with single or multiple slivers. The dissoluble core would be partially or totally removed in yarn processing, or fabric finishing, or garment finishing, and removed with combination of different stages' processing.

What is claimed is: 
     
         1 . A process for producing a composite main stretch core with substantially formed with hollow structure after removed the dissolvable core. The process comprising feeding of composite core and covered with sliver or slivers (shown as  FIG. A1 ). 
     
     
         2 . The process of  claim 1 , wherein the main stretch core is chosen from the group consisting multiple filaments, spun yarn and composite thereof. 
     
     
         3 . The process of  claim 1 , wherein the fiber covering is made of materials chosen from the group of natural fibers, artificial fibers and synthetic fibers. 
     
     
         4 . The process of  claim 1 , wherein the composite core is made of main stretch core and dissolvable core chosen from the group of natural fibers, artificial fibers and/or filaments, synthetic fibers and/or filaments and composite thereof. 
     
     
         5 . The process of  claim 1 , wherein the composite core is fed in the way chosen from parallel feeding, ply yarn form, or core spun and composite thereof (shown as FIGS. A & B). 
     
     
         6 . The process of removing the dissolvable core of composite core in chosen from yarn stage, fabric stage, garment stage and composite thereof (shown as FIG. C).