Bicomponent fibers with high wicking rate
AssigneeE. I. Du Pont de Nemours and Company
InventorsJames V. Hartzog, James M. Howell, Michelle H. Watkins, Claudia Schultze
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Abstract
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; and a plurality of longitudinal grooves.
Claims10
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;
- a weight ratio of poly(ethylene terephthalate) to poly(trimethylene terephthalate) of 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;
- and
- a plurality of longitudinal grooves.
Dependencies are inferred from the claim text.