Two-layer structure spun yarn, method of manufacturing a woven or knitted fabrics and woven or knitted fabric

摘要

PROBLEM TO BE SOLVED: To provide a bilayer-structured spun yarn, on making it a woven or knitted fabric, excellent in moisture-absorbing, heat-generating properties and warmth-keeping properties, capable of preventing the generation of static electricity and having a light weight property.;SOLUTION: This bilayer-structured spun yarn is provided by satisfying the following (I) to (V) simultaneously. (I) The spun yarn has a sheath core structure in which a water soluble polyvinyl alcohol fiber 3A, and a solvent-spun cellulose fiber 1 and/or an acrylic fiber 2 are arranged as the core, and an acrylic fiber or the acrylic fiber and a solvent-spun cellulose fiber are arranged as the shear part, (II) the content of the water soluble polyvinyl alcohol fiber based on the whole amount of the core is 30 to 70 mass% and the content of the solvent-spun cellulose fiber and/or acrylic fiber based on the whole amount of the core is 70 to 30 mass%, (III) the content of the acrylic fiber based on the whole amount of the sheath is ≥50 mass%, (IV) the content of the solvent-spun cellulose fiber based on the whole amount of the spun yarn is 15 to 30 mass%, and (V) the mass ratio of (the core)/(the sheath) is (20/80) to (50/50).;COPYRIGHT: (C)2012,JPO&INPIT