| 摘要 |
PROBLEM TO BE SOLVED: To obtain luminous fibers for clothes that comprises a luminous fluorescent particle-containing fiber-forming polymer and another fiber-forming polymer having a largely different melting point from the former polymer, are occupied almost part of the fiber surfaces with the latter polymer and have excellent durability and the decay characteristics of the luminescence. SOLUTION: The objective fibers comprises (A) a fiber-forming polymer as polyolefin, polyamide or polyester copolymer that contains luminous fluorescent particles with an average particle size of 0.3-10μm, preferably having the melting point or softening point of 140-230 deg.C and (B) a fiber-forming polymer as polyester or polyamide having the difference in melting point and softening point from the polymer (A) by 20-100 deg.C, preferably by 20-80 deg.C, particularly by 20-60 deg.C where the polymer B occupies more than 70% of the fiber surface and contains 20-80 wt.% of the polymer B based on the whole fiber.
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