| 摘要 |
PROBLEM TO BE SOLVED: To provide a sea-island composite fiber which provides a nanofiber single yarns and nanofiber products which achieve uniform nanofiber single yarn group, has high strength, abrasion resistance and wear resistance, reduces fluff, and is excellent in dyeing uniformity.SOLUTION: The sea-island composite fiber comprising a thermoplastic resin. The diameter of its island component is 900 nm or less. The fiber satisfies the following conditions (A) and (B): the number of islands in a sea-island single yarn is 30-200 (A); and the sea-island single yarn fineness is 1.5 dtex or less (B). |
