High-absorbent polyvinyl alcohol fibers and nonwoven fabric comprising them

摘要

High-absorbent PVA fibers are provided inexpensively, which have high absorbency and have good fiber properties necessary for producing fibrous structures such as nonwoven fabrics. The fibers are of a water-soluble PVA having a crosslinking component introduced thereinto, and they satisfy the following requirements: (1) Their water absorption in water at 30 DEG C is from 10 to 100 times; (2) The diameter of the fibers that are in water at 30?C to absorb water is from 2 to 10 times that of the fibers not having absorbed water; (3) Their melting point is from 160 to 220 DEG C, and their heat of fusion is from 40 to 100 J/g.