TAPERED FIBER, ITS PRODUCTION AND NAPPED PRODUCT COMPOSED THEREOF

摘要

PURPOSE:To obtain tapered fiber, capable of providing a napped product without a difference in color or gloss such as blackening, white fading or whitening of seams due to lying fuzz. CONSTITUTION:This tapered fiber is core-sheath type conjugate polyester-based fiber having at least one end formed into a tapered shape, recessed parts having 0.5-5mum diameter formed at a ratio of 0.1-20 recessed parts/100mum<2> in an exposed core part and recessed parts having 0.2-0.7mum diameter at a ratio of 20-1000 recessed parts/100mum<2> on the fiber surface other than the exposed core part. Furthermore, this napped product has the tapered fiber as fuzz.