| 摘要 |
The invention provides a bicomponent fiber comprising poly(ethylene terephthalate) and poly(trimethylene terephthalate) and having:a weight ratio of poly(ethylene terephthalate) to poly(trimethylene terephthalate) of at least about 30:70 and no more than about 70:30,a scalloped oval cross-section selected from the group consisting of side-by-side and eccentric sheath-core;a cross-section long axis;a boundary between the poly(ethylene terephthalate) and the poly(trimethylene terephthalate) that is substantially parallel to the cross-section long axis; anda plurality of longitudinal grooves. |
