| 摘要 |
Polyolefin fibers are disclosed which comprising a surface portion of a low-orientation domain and an inner portion of a high-orientation domain, the orientation parameter, as measured by the Raman spectroscopy, of the low orientation domain is smaller than that of the high orientation domain by 2.2 or more, but less than 8.0. By using the polyolefin fibers, non-woven fabrics having a high strength and excellent hand feeling can be provided. Further, since the fibers can be processed into non-woven fabrics at a wide range of processing temperature when a point bonding method is used, non-woven fabrics having stabilized qualities can be prepared. <IMAGE> |
