| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a nonwoven fabric the stretchability of which is not conventionally available and which has excellent strength when extended/contracted without impairing the feeling and uniformity of the nonwoven fabric. <P>SOLUTION: There is provided a stretchable nonwoven fabric in which a web uniformly including 90-60 mass% of a heat shrinkable composite fiber (A) obtained by using at least two kinds of resin components having different melting points and 10-40 mass% of a heat bonding composite fiber (B) obtained by using at least two kinds of resin components having different melting points is subjected to a heat treatment (1) at a temperature lower than the melting point of a resin component having the lowest melting point among the resin components constituting the heat-shrinkable composite fiber (A) to heat and shrink the heat-shrinkable composite fiber (A) and then is subjected to a heat treatment (2) at a temperature that is 5-10°C higher than the softening point of a resin component having the lowest melting point among the resin components constituting the heat bonding composite fiber (B) to melt the resin component having the lowest melting point to thermally bond the fibers. Thus the web structure is bonded in the stretchable nonwoven fabric. <P>COPYRIGHT: (C)2013,JPO&INPIT |
