公开(公告)号：JPH07126911A

公开(公告)日：1995-05-16

申请号：JP27399393

申请日：1993-11-02

Applicant: TORAY INDUSTRIES

Inventor： SUGIMOTO TAKETOSHI ,  SASAKI MASAMI ,  KAGEYAMA MITSUTAKA

IPC: D01D4/02

Abstract: PURPOSE:To provide a melt-spinning spinneret capable of spinning a plural kinds of yarns of wide yarn variety with a single spinneret at the same time by opening nozzle holes on a circular spinneret in the form of blocks having specific arrangement and spacings between holes for each yarn. CONSTITUTION:Nozzle holes 2 are opened on a circular spinneret 1 having a diameter (a) of 70-140mm in the form of blocks for respective yarns. The gap (b) between the blocks is 8-35mm and the number of blocks is 2-4. The nozzle holes of each block are arranged in alternate zigzag form on the cross points of plural parallel linear line groups having a spacing (c) of 5-10mm and >=4 parallel linear line groups having a spacing (d) of 3-10mm. The number of nozzle holes on each block is 12-100. The chimney cooling air is blown in the direction of the arrow 3 to minimize the generation of turbulent air flow and enable stable melt-spinning of a yarn having a filament fineness of 0.5-20d.