发明名称 |
FLEXIBLE FIBROUS SHEET AND MULTICOMPONENT YARN SUITABLE FOR PRODUCTION THEREOF |
摘要 |
PURPOSE:To obtain a flexible fibrous sheet having high strength by adding a thermoplastic polymer containing a polyolefin segment composed of saturated hydrocarbon skeleton in a porous state to nonwoven fabric comprising bundled yarn of ultrathin fibers. CONSTITUTION:Sea island type or multi-core sheath core type polyurethane multicomponent yarn comprising a thermoplastic polyurethane containing a polyolefin segment composed of saturated hydrocarbon skeleton as a dispersion medium component and another thermoplastic polymer (e.g. polyamide or polyester) incompatible with the polyurethane as a dispersion component is used to give interlaced nonwoven fabric. Then the polyurethane in the multicomponent yarn is dissolved by using a solvent which is a solvent for the polyurethane and is a non-solvent for the other components or by impregnating the fabric with a solution of the same polyurethane or a different polyurethane and coagulated in water to give a finely porous flexible fibrous sheet. |
申请公布号 |
JPH04202862(A) |
申请公布日期 |
1992.07.23 |
申请号 |
JP19900332581 |
申请日期 |
1990.11.28 |
申请人 |
KURARAY CO LTD |
发明人 |
TANBA YOSHIHIRO;YAMAZAKI TAKESHI |
分类号 |
D06N3/14;D01F8/16;D06M11/00;D06M13/02;D06M13/322;D06M13/402;D06M15/564;D06M23/00;D06M101/00;D06M101/16;D06M101/18;D06M101/22;D06M101/30;D06M101/32;D06M101/34;D06M101/38 |
主分类号 |
D06N3/14 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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