| 摘要 |
PURPOSE:To obtain a biodegradable nonwoven laminate having high separation strength suitable for medical and sanitary use by laminating a nonwoven fabric layer composed of biodegradable thermoplastic synthetic filaments and a nonwoven fabric layer formed of natural fibers being entangled each other. CONSTITUTION:This structure is formed by laminating two nonwoven fabrics, wherein one is composed of biodegradable thermoplastic synthetic filaments consisting of an aliphatic polyester copolymer obtained by ring-opening polymerization, and the other is composed of natural fibers being mechanically entangled each other. This is also a laminated nonwoven structural body having dotted fusional areas formed of synthetic filaments and natural fibers that are fused one another, in which in the dotted fusional areas, the natural fibers 2 situated at least on the boundary surface of both the nonwoven layers are fixed to be integrated with the synthetic filaments in the form of being buried in its fused parts 1. |
