| abstract |
PROBLEM TO BE SOLVED: To provide a polyester fiber which can achieve water resistance or image-shielding property and daylighting property by simply weaving and knitting, and at the same time, can have a refreshing feeling, a firm feeling and a glossy feeling. SOLUTION: A single fiber fineness is 2.5 dtex or less and a single fiber cross-sectional shape is a flat multilobal shape having 6 to 10 lobes, and the longest major axis connecting the vertices of circumscribed circles of the flat multilobal shape is A, The shortest axis that is orthogonal to the major axis A and connects the apexes of the convex portions of the flat multilobal shape is B, the shortest axis that is the same or the second longest minor axis is C, and When the shortest short diameter of the short diameters connecting the bottoms of the flat multilobed recesses is D, the single fiber is made to satisfy the following formula, and the glossiness of the single fiber is 35 to 35. A polyester fiber which is 70 and a fabric comprising it. Flatness (A / B) = 1.2 to 2.2, Deformation degree I (C / D) = 1.1 to 1.3 Deformation degree II (B / D) = 1.1 to 1.6, A> B ≧ C> D [Selection] Figure 1 |