| 摘要 |
PURPOSE:Elastic conjugated yarn useful as padding cloth, etc. having improved elastic recovery, resistance to change in color, agglutination preventing properties, comprising thermoplastic polyurethane as a core component and a polyolefin having a specific meltint point as a sheath component. CONSTITUTION:The aimed yarn having <=30 denier of single yarn fineness, obtained by subjecting (A) a thermoplastic polyurethane (e.g., reaction product of polyol such as dihydroxy polyester, etc., having 500-6,000 molecular weight, organic diisocyanate such as tolylene diisocyanate, etc., having <=800 molecular weight, and chain extender such as hydrazine, etc.) as a core component and (B) a polyolefin (e.g., polyethylene, etc.) having a melting point 20 deg.C lower than that of the component A in a weight ratio of the component A/B of 30/70-70/30 to melt spinning. A raw material for woven and knitted goods contains preferably >=10wt% of the yarn.
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