| 摘要 |
PROBLEM TO BE SOLVED: To provide a conjugate spinneret capable of obtaining a potentially crimping type conjugate polyester multifilament, especially the fiber of a thin fineness stably, a method for producing the same fiber effectively, the conjugate polyester thin fiber capable of obtaining a uniform dyeing, and a woven or knit fabric obtained by using the same fiber, having sufficient bulky feeling and stretching property. SOLUTION: This ejection hole 10 of the conjugate spinneret is equipped with an ejection opening part 14 of which cross-sectional area increases from its upstream side towards an ejection end and a thin tubular part 13 having a uniform diameter and installed at the upstream side of the ejection opening part as connected with it, where two kinds of polyesters are conjugated. Gradually increased angles made by the axis of the ejection opening part 14 with its wall surface are changed by≥2 steps with the gradually increased angle ofθ1,θ2, etc., within a range of 10-45°. By using the spinneret and spinning continuously under a specific condition, kneeling does not occur even on spinning the thin fiber, and it becomes possible to perform the stable spinning of the fiber having the desired potentially crimping property. COPYRIGHT: (C)2004,JPO&NCIPI
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