To provide a hot-melt adhesive conjugate fiber from which an ultrafine heat-shrinkable conjugate fiber is obtained at high productivity by easily and stably expressing a flow-drawing process of a polyester undrawn yarn.
The hot-melt adhesive conjugate fiber is obtained by drawing an undrawn yarn comprising a polyester as a first component and an olefin-based polymer having a lower melting point than that of the first component, as a second component, and the fiber has a birefringence of 0.150 or less and a ratio of birefringence between the first component to the second component of 3.0 or less. The flow-drawing process can be easily and stably expressed using conventional production facilities, and the heat-shrinkable fiber, a drawn intermediate, and an ultrafine hot-melt adhesive conjugate fiber produced by redrawing the drawn intermediate can be obtained with high productivity and excellent runnability.
IDEGUCHI TADASHI
TERANAKA SEIJI
ES FIBERVISIONS HONG KONG LTD
ES FIBERVISIONS LP
ES FIBERVISIONS APS
| JP2007009339A | 2007-01-18 | |||
| JP2003003334A | 2003-01-08 |
Nobuo Ogawa
Atsushi Hakoda
Kenji Asai
Koji Hirayama
Yuko Otsuka