Title:
全芳香族ポリアミドフィラメントの製造方法
Document Type and Number:
Japanese Patent JP4658194
Kind Code:
B2
Abstract:
Disclosed are wholly aromatic polyamide filament and a method of manufacturing the same, characterized by comprising multi-stage injection of a coagulant with sulfuric acid concentration lowered sequentially stage by stage, to a spun material fed into a coagulant injection tank. The present invention enables increase of a spinning and take-up velocity without occurrence of thread cutting by uniformly and evenly coagulating surface and inside of the spun material. In addition, the present invention recovers the coagulant or water already used and reuses the recovered coagulant or water in the earlier stages, so that it has advantages of saving production costs and reducing environmental contamination. Accordingly, the wholly aromatic polyamide filament produced according to the present invention has high crystallinity X, large apparent crystal size ACS and reduced defects in the crystal itself, thereby exhibiting more improved physical properties such as strength and modulus.
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Inventors:
Han In-Siku
Riyayon
Lison-Han
Kim Ya Young
Kwon Soo Young
Riyayon
Lison-Han
Kim Ya Young
Kwon Soo Young
Application Number:
JP2008520180A
Publication Date:
March 23, 2011
Filing Date:
July 05, 2006
Export Citation:
Assignee:
Kolon Industries Inc.
International Classes:
D01F6/60; D01D5/06
Domestic Patent References:
| JP2104710A | ||||
| JP1314722A | ||||
| JP61019805A | ||||
| JP9013221A |
Foreign References:
| KR19950000934A |
Other References:
The evolution of structure and properties in poly(p-phenylene terephthalamide) fibers,Polymer,2000年12月 6日
Attorney, Agent or Firm:
Masayuki Masabayashi
Hayashi Ichiyoshi
Fumihiko Yagisawa
Keiji Masaki
Hayashi Ichiyoshi
Fumihiko Yagisawa
Keiji Masaki