| abstract |
The present invention relates to thermoplastic polyurethane fibers and preparation method thereof, wherein described fiber has good stainability and fire resistance good in some embodiments.This fiber is prepared by the composition comprising (a) thermoplastic polyurethane, product of the thermoplastic polyurethane comprising following components itself：I () one or more polyalcohol, (ii) one or more diisocyanate, (iii) one or more cahin extension agent, (iv) are chosen any one kind of them or multiple crosslinking agents and functional modified dose of one or more of (v), wherein each described functional modified dose be aminodiol and Bronsted acid product. |