Title:
METHOD FOR PRODUCING WHOLLY AROMATIC POLYAMIDE FIBER
Document Type and Number:
Japanese Patent JP2014122447
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a method for producing a wholly aromatic polyamide fiber, in which a high quality, wholly aromatic polyamide fiber, the fiber yarn of which is drawn and aligned very well without being fibrillated, can be obtained.SOLUTION: In production of a wholly aromatic polyamide fiber, when inorganic fine powder for preventing fusion is removed after the fiber yarn is drawn thermally or heat-treated, a fluid is sprayed on the fiber yarn from at least three directions with a ratio of ((the minimum flow rate)/(the maximum flow rate) of the fluid from each of the three directions being set within a specified range.
Inventors:
YONEZAWA MIHOKO
OTSUKI KOJI
OTSUKI KOJI
Application Number:
JP2012279463A
Publication Date:
July 03, 2014
Filing Date:
December 21, 2012
Export Citation:
Assignee:
TEIJIN LTD
International Classes:
D01F6/60; D01D10/00; D02J7/00; D06M11/77; D06M23/08; D06M101/36
Attorney, Agent or Firm:
Taro Tameyama
Previous Patent: CORE MATERIAL FOR HEAT CLEANING TREATMENT
Next Patent: WHOLLY AROMATIC POLYAMIDE MODIFIED CROSS-SECTION FIBER
Next Patent: WHOLLY AROMATIC POLYAMIDE MODIFIED CROSS-SECTION FIBER