Composite yarns

Abstract

Composite yarns including a cellulose-based filament are disclosed. The cellulose-based filament may be wrapped around a staple fiber core of the yarn or may be included in a core of the yarn and at least partially surrounded by a staple fiber sheath. Such composite yarns can combine the strength of the regenerated cellulose filament with the “feel” and other properties of the organic fiber. Textiles formed from the composite yarns and articles including the textiles are also disclosed.

What is claimed is: 
     
         1 . A composite yarn comprising:
 a core including a wool fiber, a regenerated cellulose staple fiber, a bast fiber, a recycled synthetic fiber, or a combination thereof; and   a regenerated cellulose filament at least partially surrounding the core.   
     
     
         2 . The composite yarn of  claim 1 , wherein the regenerated cellulose filament is a lyocell filament and the composite yarn comprises:
 from about 60% to about 85% by weight of the wool fiber; and   from about 15% to about 40% by weight of the lyocell filament.   
     
     
         3 . The composite yarn of  claim 1 , wherein the wool fiber has an average diameter less than 20 microns. 
     
     
         4 . The composite yarn of  claim 1 , wherein the regenerated cellulose filament is a lyocell filament and the composite yarn comprises:
 from about 40% to about 60% by weight of the regenerated cellulose staple fiber, the bast fiber, or a combination thereof; and   from about 60% to about 40% by weight of the lyocell filament.   
     
     
         5 . The composite yarn of  claim 4 , wherein the composite yarn comprises a lyocell staple fiber. 
     
     
         6 . The composite yarn of  claim 1 , wherein the regenerated cellulose filament is a lyocell filament and the composite yarn comprises:
 from about 40% to about 60% by weight of a recycled polyester staple fiber; and   from about 60% to about 40% by weight of the lyocell filament.   
     
     
         7 . The composite yarn of  claim 1 , wherein:
 the composite yarn comprises a filament strand including multiple lyocell filaments wrapped around the core; and   the filament strand has a linear density from 25 dTex to 160 dTex.   
     
     
         8 . The composite yarn of  claim 7 , wherein the filament strand includes from 25 to 100 filaments. 
     
     
         9 . The composite yarn of  claim 1 , having a metric yarn number from about 25 to about 100. 
     
     
         10 . A textile comprising the composite yarn of  claim 1 . 
     
     
         11 . An article comprising the textile of  claim 10  and selected from a clothing article, a footwear article, or an accessory article. 
     
     
         12 . The article of  claim 11 , wherein:
 the textile has a knitted structure; and   the article is selected from a sock, an undergarment, or a pair of leggings.   
     
     
         13 . A composite yarn comprising:
 a core including at least one regenerated cellulose filament; and   a sheath at least partially surrounding the core and including an organic fiber.   
     
     
         14 . The composite yarn of  claim 13 , wherein the organic fiber is a wool fiber having an average diameter less than 20 microns. 
     
     
         15 . The composite yarn of  claim 14 , wherein the sheath comprises at least 70% by weight of the wool fiber. 
     
     
         16 . The composite yarn of  claim 13 , wherein the at least one regenerated cellulose filament is a lyocell filament. 
     
     
         17 . The composite yarn of  claim 13 , wherein the core has a linear density from 25 dTex to 100 dTex. 
     
     
         18 . A textile comprising the composite yarn of  claim 13 . 
     
     
         19 . An article comprising the textile of  claim 18  and selected from a clothing article, a footwear article, or an accessory article. 
     
     
         20 . The article of  claim 19 , wherein:
 the textile has a knitted structure; and   the article is selected from a sock, an undergarment, or a pair of leggings.