SPINNERET FOR MELT SPINNING

摘要

PROBLEM TO BE SOLVED: To provide a spinneret for melt spinning with which a multifilament synthetic fiber having a fine single fiber fineness is produced without lowering productivity and deteriorating qualities by adopting a specific ejection hole arrangement even without carrying out extreme reconstruction of facilities. SOLUTION: In the circular spinneret of a large number of holes having≥180 ejection holes, the spinneret for melt spinning has ejection hole groups each composed of≥6 concentrically arranged ejection holes having a gap S between the ejection holes of≥0.8 mm and≤2.6 mm and a gap between the ejection hole groups of≥4.5 mm and≤16.0 mm. COPYRIGHT: (C)2006,JPO&NCIPI