| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a fire-retardant black spun-dyed false-twisted yarn that causes no scratch and wear of yarn and a weaving/knitting machine in a weaving/knitting process, and achieves a woven/knitted item satisfying both fire retardancy and high blackness at the same time while satisfactorily maintaining an operation during manufacturing of a fabric.SOLUTION: A fire-retardant black spun-dyed false-twisted yarn is made of a fire-retardant polyester copolymerized with 500-7000 ppm of a phosphorus compound and contains 1.3-2.0 wt.% of carbon black, in which a dynamic friction coefficient with respect to a mirror surface metal is 2.3 or less, and an L value of cylindrical knitting is 13 or less. A total fineness of the fire-retardant black spun-dyed false-twisted yarn is 20-200 dtex. A fineness of single fibers as a component is 0.6-6 dtex. The number of the single fibers is 5-100.</p> |
