Title:
PIGMENTED AROMATIC POLYAMIDE FIBER AND PRODUCTION THEREOF
Document Type and Number:
Japanese Patent JPH01139813
Kind Code:
A
Abstract:
PURPOSE:To obtain the title fiber outstanding in heat and light resistances and color developability, by incorporating the spinning stock solution with organic and/or inorganic pigment followed by spinning, drawing and heat treatment to develop specific properties. CONSTITUTION:A pigmenting stock solution prepared by dispersing or dissolving organic and/or inorganic pigment(s) in an organic solvent consisting mainly of a compound of the formula (R1 and R2 are each H, alkyl, hydroxyalkyl or alkoxyalkyl) is mixed with the polymer (for spinning) stock solution. Thence, the resulting solution is put to spinning, drawing and heat treatment to obtain the objective aromatic polyamide fiber. This fiber has the following characteristics: 1. melting point (Tm, deg.C)... >=350 deg.C, 2. Tm-TEX... >=30 deg.C (where TEX refers to exothermic phenomenon initiation temperature), 3. degree q crystallinity (Xc, %)... >=10%, 4. elongation at break (DE, %)... >=10%, 5. Dsr(Tm)... <=15% (dry hot shrinkage rate at Tm), 6. Dsr(Tm+55 deg.C)/Dsr(Tm)... <=3 [Dsr(Tm+55 deg.C) refers to the dry hot shrinkage rate at (Tm+55 deg.C)].
Inventors:
EZAKI TAMEMARU
OMORI AKIO
OSAWA MASANORI
OMORI AKIO
OSAWA MASANORI
Application Number:
JP30049987A
Publication Date:
June 01, 1989
Filing Date:
November 27, 1987
Export Citation:
Assignee:
KURARAY CO
MITSUI TOATSU CHEMICALS
MITSUI TOATSU CHEMICALS
International Classes:
D01F6/90; D01F1/04; D01F6/60; D01F6/80; (IPC1-7): D01F1/04; D01F6/60; D01F6/80; D01F6/90
Attorney, Agent or Firm:
Honda Ken
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