METHOD FOR PRODUCING TWO OR MORE PRE-ORIENTED YARN OF THIN DENIER POLYESTER AND TWO OR MORE PRE-ORIENTED YARN OF THIN DENIER POLYESTER PRODUCED BY THE METHOD

摘要

PROBLEM TO BE SOLVED: To provide two or more thin denier polyester filaments for obtaining two or more pre-oriented yarns of thin denier polyester excellent in knit dyeability.;SOLUTION: The pre-oriented yarns having excellent physical properties and uniform stress through stretching is produced by cooling the yarns by using an outgoing radial type blower in a spinning process and keeping a certain relation among a spinning condition, an arrangement of discharge openings of a spinneret, the outermost and the innermost diameters of discharge openings of the spinneret, a length of a calm zone through which a discharged tow passes, and the diameter and the length of a cooling cylinder.;COPYRIGHT: (C)2004,JPO