| 摘要 |
PROBLEM TO BE SOLVED: To provide nonwoven fabric that shows not only good cooling properties, when the fibers are melt-spun, but also has good water absorption and thermal stability, high fibrillation degree, excellent mechanical properties and flexibility and is useful over a wide range of applications such as in the fields of wipers and filters. SOLUTION: This staple fiber nonwoven fabric is constituted with the first and the second fibrillating staple fibers made of the first and the second fiber- forming polymers and water-absorbing staple fiber. The first and the second fibrillating staple fibers have both a filament fineness of <=0.5 denier. The first fiber-forming polymer and the second fiber-forming polymer are constituted with any of mutually incompatible amide polymers, ester polymers and ethylenic polymers. The fibrillation rate of the first fibrillating staple fiber and the second fibrillating staple fiber is >=85%. These constituting fibers are mutually interlaced in three dimensions. |
