Stretchable core-sheath type composite yarn and stretchable woven-knit fabric

Abstract

A core-in-sheath type composite stretch yarn, having excellent stretchability and soft hand and capable of beinig dyed in dark colors, comprises a core portion constituted from a elastic yarn formed from at least one elastic fiber and having an ultimate elongation of 70% or more and a sheath portion formed from a non-elastic yarn comprising a plurality of non-elastic fibers having an ultimate elongation of 70% or more and surrounding around the core portion, and is useful for producing a woven or knitted stretch fabric having a high stretch percentage and capable of being dyed in dark colors.

Dependencies are inferred from the claim text.