PROCESS FOR MANUFACTURING A SMOOTH POLYESTER YARN AND POLYESTER YARN MANUFACTURED BY THIS PROCESS

摘要

PCT No. PCT/CH87/00143 Sec. 371 Date Jun. 9, 1988 Sec. 102(e) Date Jun. 9, 1988 PCT Filed Oct. 20, 1987 PCT Pub. No. WO88/03185 PCT Pub. Date May 5, 1988.A method of producing a smooth, cold-drawn multifilament yarn from a polyester POY comprising cold-drawing of the polyester POY to a draw ratio of at least 1.6 and subsequent hot-relaxing the polyester POY under an over-feed of 10 to 20%, and a polyester yarn produced by this method.