| 摘要 |
PROBLEM TO BE SOLVED: To provide a fiber structure having excellent improvement in degree of residual strain at the time of compressing by providing a net-like sheet layer at least at one position between laminated nonwoven fabric layers. SOLUTION: Nonwoven fabric to be applied is constituted by short fiber and contains at least matrix fiber and heat fusion bondable binder fiber. Particularly, the nonwoven fabric contains 5 to 80 wt.% of nonwoven fabric base material is preferably contained in the binder fiber. As the matrix fiber, semisynthetic fiber such as thermoplastic synthetic fiber, rayon or the like, or natural fiber such as cotton or the like is used. But the matrix fiber is not limited to these. As the binder fiber, normally copolymerized or blended polymer such as, for example, copolymerized polymer obtained by lowering its melting point by copolymerized component such as isophthalic acid or the like or heat fusion bonded polymer such as blended polyester or the like is suitably used. |
