Polyester fiber having deformed cross section and yarn and fabric comprising the same
US6821914B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 14, 2001 |
| Grant date | Nov 23, 2004 |
| Priority date | — |
| Expiry date | May 7, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/611
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Irregular cross-sectional filaments made from a polyester and yarns and fabrics comprising the filaments, the cross-sectional profile of which filaments has a triangular part (A) and a flat projection part (B) connected to an angular portion of the triangular part and extending therefrom in a flat form, and satisfies the requirements (1) and (2):0.7≦(L1/L2)≦3.0  (1) and3.0≦(h2/h1)≦10.0  (2) in which L1 represents a distance between a middle point of a connection line drawn between two intersecting points of a contour line of the part (A) with a contour line of the part (B), and a projection end point of the part (B); L2 represents a distance between a middle point of the connection line between the part (A) and the part (B), and a middle point of a side line of the part (A) facing the connection line; h1 represents a length of the connection line; and h2 represents a largest width of the part (A) in the direction at right angles to the longitudinal direction of the part (B).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.