| 摘要 |
PROBLEM TO BE SOLVED: To provide a heat-bondable filament which scarcely changes the dimension when subjected to a heat bonding treatment in a post process or the like, has an excellent processing property, scarcely lowers the strength after the thermal treatment, and can suitably be used for the uses of industrial materials requiring high strength. SOLUTION: This heat-bondable filament is characterized by comprising a polyester and a copolyester having a melting point of 130 to 220°C being lower than that of the polyester as a core component and a sheath component, respectively, constituting the filament, and having strength of≥4.0 cN/dtex, a breaking elongation of≤30%, a dry-heat shrinkage of≤20% at 150°C, and the maximum thermal stress of≤0.2 cN/dtex up to the (melting point + 10)°C of the sheath component. COPYRIGHT: (C)2003,JPO
|
