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Title:
METHOD FOR SPINNING POLYTRIMETHYLENE TEREPHTHALATE, AND SPINNERET
Document Type and Number:
Japanese Patent JP2002371432
Kind Code:
A
Abstract:

To provide a method for spinning a polytrimethylene terephthalate by which the frequency of cleaning of a spinneret surface is prolonged.

The spinneret having ≤0.2 μm maximum height (Ry) of the surface roughness of an extruding surface from which the polymer is extruded is used for the spinning when carrying out the melt spinning of the polytrimethylene terephthalate.


Inventors:
KIKUCHI KATSUSHI
Application Number:
JP2001173813A
Publication Date:
December 26, 2002
Filing Date:
June 08, 2001
Export Citation:
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Assignee:
TEIJIN LTD
International Classes:
D01F6/62; D01D4/02; (IPC1-7): D01F6/62; D01D4/02
Domestic Patent References:
JP2000314031A2000-11-14
JPH11350235A1999-12-21
JPS6163706A1986-04-01
JPS63270807A1988-11-08
JPH0770809A1995-03-14
JPH09300428A1997-11-25
JPH1034669A1998-02-10
JPH10168641A1998-06-23
JP2000273714A2000-10-03
JPH06257016A1994-09-13
JPH06346308A1994-12-20
JPH11200143A1999-07-27
Attorney, Agent or Firm:
Maeda Junhiro



 
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