| 摘要 |
PROBLEM TO BE SOLVED: To provide a polypropylene-based fiber which can provide a dyed product in deep color with a dispersion dye in dying of post-treatment step and having good light fastness and chlorine fastness, and a woven or knitted fabric including the fiber. SOLUTION: The polypropylene-based fiber has a core-sheath composite structure in which a core part includes a thermoplastic resin expressing dyeability with a dispersion dye and a sheath part includes a polypropylene-based resin, and has a monofilament fineness of 1.5-10 dtex and a thickness of the sheath part in fiber cross-section of ≤12 μm. The woven or knitted fabric includes the propylene-based fiber. COPYRIGHT: (C)2009,JPO&INPIT
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