POLYESTER FIBER HAVING DEFORMED CROSS SECTION AND YARN AND FABRIC COMPRISING THE SAME

摘要

Irregular cross-sectional polyester filaments (which may be thick and thin type filaments) containing a polyester and having a cross-sectional profile which has (A) a triangular part having a triangle form; and (B) a flat projection part connected to an angular portion of the triangular part and extending therefrom in a flat form, and which satisfies the requirements (1) and (2): <DF NUM="(1)">0.7 </= (L1/L2) </= 3.0 </DF> and <DF NUM="(2)">3.0 </= (h2/h1) </= 10.0 </DF> 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 triangular part (A) with a contour line of the flat projection part (B), and a projection end point of the flat projection part (B); L2 represents a distance between a middle point of the connection line between the triangular part (A) and the flat projection part (B), and a middle point of an side line of the triangular part (A) facing the connection line; h1 represents a length of the connection line between the triangular part (A) and the flat projection part (B); and h2 represents a largest width of the triangular part (A) in the direction at right angles to the longitudinal direction of the flat projection part (B), are used to produce a yarn and a fabric. <IMAGE>