| 摘要 |
PROBLEM TO BE SOLVED: To provide a polyamide hollow fiber excellent in functionality, including lightweight properties and heat retaining properties, with good productivity, by preventing formation of collapse of hollow parts in higher-order processing stages. SOLUTION: Core-sheath conjugate filament yarn is structured so that a thermoplastic resin for composing a core part of the yarn comprises polylactic acid, a thermoplastic resin for composing a sheath part thereof comprises polyamide, a conjugate ratio of the core part to the sheath part is 20/80 to 60/40 in wt%, and a functional material is contained in the polyamide for composing a sheath part in an amount of 0.5-10 wt%, and/or an antioxidant is contained in the polylactic acid for composing the core part in an amount of 0.01-1 wt%. COPYRIGHT: (C)2006,JPO&NCIPI |
