POLYESTER FIBER, WOVEN KNIT FABRIC, CAR SHEET AND PROCESS FOR PRODUCING POLYESTER FIBER

摘要

The present invention is also the initial modulus of polyester fiber 15~38cN / dtex, elongation recovery rate after 20% elongation is more than 70%, 0.3% ~1.4% dike rate after heat treatment 160 ℃ gun. By using the polyester fiber of the present invention, the strength against repeated loads, excellent in a soft property and uniformity of the surface, also, it is possible to obtain a straight knitting without irregularities or curl. Straight knitting obtained from the polyester fiber of the invention is therefore resistant to the repeated load steel, it can be suitably used in the child seat body load applied. ; Polyester fibers, tension resistivity, kidney resilience