Method for manufacturing a stretch fabric comprising plant fibres and stretch fabric manufactured by such method

Abstract

A method includes the operating steps of providing a stretch twisted yarn including a plurality of single threads twisted together. A pair of mixed threads has substantially inextensible plant fibers mixed with water-soluble fibers, and an elastic single thread includes synthetic elastic fibers. The method further includes providing a further yarn, manufacturing a fabric through weaving by interlacing the twisted yarn with the further yarn, and dissolving the water-soluble fibers from the fabric.

1 . Method for manufacturing a stretch fabric comprising the following operating steps:
 providing a stretch twisted yarn comprising a plurality of single threads twisted together and wherein the plurality of single threads comprises:
 a pair of mixed threads, said mixed threads comprising substantially inextensible plant fibers mixed with water-soluble fibers, and 
 an elastic single thread, said elastic thread comprising synthetic elastic fibers; 
   providing a further yarn;   manufacturing a fabric through weaving by interlacing a set of threads of said stretch twisted yarn with a set of threads of said further yarn; and   dissolving said water-soluble fibers from said fabric.   
     
     
         2 . The method according to  claim 1 , wherein said further yarn is said stretch twisted yarn. 
     
     
         3 . The method according to  claim 1 , wherein said further yarn is a substantially inextensible yarn comprising substantially inextensible plant fibers. 
     
     
         4 . The method according to  claim 3 , wherein said plant fibers of said mixed yarn are bast fibers. 
     
     
         5 . The method according to  claim 4 , wherein said bast fibers comprise linen fibers. 
     
     
         6 . The method according to  claim 1 , wherein said water-soluble fibers comprise alginic fibers. 
     
     
         7 . The method according to  claim 1 , wherein said water-soluble fibers comprise synthetic fibers made of polyvinyl alcohol or polyvinyl acetate. 
     
     
         8 . The method according to  claim 1 , wherein said synthetic elastic fibers comprise polyurethanic fibers. 
     
     
         9 . The method according to  claim 3 , wherein said substantially inextensible yarn comprises plant fibers of the same type used for said mixed yarn. 
     
     
         10 . The method according to  claim 3 , wherein said plant fibers of said substantially inextensible yarn are bast fibers. 
     
     
         11 . The method according to  claim 10 , wherein said bast fibers comprise linen fibers. 
     
     
         12 . The method according to  claim 3 , wherein said substantially inextensible yarn comprises a first single thread made of substantially inextensible plant fibers and a second single thread made of animal fibers, said threads being twisted together. 
     
     
         13 . The method according to  claim 12 , wherein said plant fibers of said first thread comprise bast fibers. 
     
     
         14 . The method according to  claim 13 , wherein said bast fibers comprise linen fibers. 
     
     
         15 . The method according to  claim 12 , wherein said animal fibers of said second thread comprise silk fibers. 
     
     
         16 . The method according to  claim 3 , wherein said substantially inextensible yarn comprises a pair of single threads made of substantially inextensible plant fibers twisted together. 
     
     
         17 . The method according to  claim 3 , wherein said weaving is carried out so that a set of weft threads comprises a plurality of threads of said stretch twisted yarn alternated with a plurality of threads of said substantially inextensible yarn. 
     
     
         18 . The method according to  claim 17 , wherein said weaving is carried out so that a set of warp threads comprises a plurality of threads of said substantially inextensible yarn. 
     
     
         19 . The method according to  claim 18 , wherein said weaving is carried out so that a set of warp threads comprises a plurality of threads of stretch twisted yarn alternated with said plurality of threads of substantially inextensible yarn. 
     
     
         20 . The method according to  claim 1 , wherein said weaving is carried out so that a set of weft threads comprises a plurality of threads of said stretch twisted yarn and a set of warp threads comprises a plurality of threads of the stretch twisted yarn. 
     
     
         21 . The method according to  claim 1 , wherein said water-soluble fibers are dissolved from said fabric by a bath in an alkaline solution. 
     
     
         22 . A stretch fabric obtained by a method according to  claim 1 .