| abstract |
(57) [Abstract] [Problem] Excellent bulk recovery while having a soft texture, Provided is a heat-fusible fiber which is less bulky even when rolled and can be usefully used mainly as a sheet for safety materials. A heat-fusible conjugate fiber comprising a fiber-forming component and a heat-fusible component, wherein the heat-fusible component is arranged so as to be exposed at least on the surface of the fiber. The main acid component is terephthalic acid, 50% by mole or more based on the total glycol component is trimethylene glycol, and the polyester has a melting point of 160 to 226 ° C. Polyester heat-fusible conjugate fiber, which is a resin 20 ° C. or more lower than the hydrophilic component. |