| 摘要 |
PURPOSE:To provide a conjugate filament having biodegradability, excellent mechanical strength, dimensional stability, stretchability and bulkiness, high softness and hot-bonding property and capable of forming a nonwoven, woven or knit fabric suitable as a material for sanitary material and life-relating material. CONSTITUTION:The objective filament is a biodegradable latent-crimping eccentric core-sheath conjugate filament exhibiting latent crimping capability and having a core part composed of a biodegradable thermoplastic polymer component having high melting point and a sheath part composed of a biodegradable thermoplastic polymer component having a melting point lower than that of the core part. As an alternative, the conjugate filament is a biodegradable latent-crimping side-by-side conjugate filament produced by bonding a biodegradable thermoplastic polymer component having high melting point to a biodegradable thermoplastic polymer component having low melting point in side-by-side state. The subject nonwoven fabric is composed of conjugate filaments having a crimp number of >=25/25mm and partly bonded with each other by hot- bonding. |
