Title:
NITROBENZISOTHIAZOLE AZO DYE
Document Type and Number:
Japanese Patent JPH0912908
Kind Code:
A
Abstract:
To obtain the subject dye excellent in coloring property and use fastness as well as coloring force on various dyeing methods and fiber materials, build up and absorbing property, level dyeing force, etc.
For example, (A) 3-amino-5-nitro-2,1-benzisothiazole is diazotized and the diazotized product is subjected to coupling with (B) N-benzyl-N- ethylaniline to provide the objective dye of the formula. Furthermore, crystalline modification of dye of the formula can be obtained by carrying out the reaction in the presence of a coupling auxiliary. The coupling auxiliary includes a (substituted) lower aliphatic carboxylic acid and a (substituted) aliphatic alcohol ester, an aliphatic alcohol polyethylene glycol ether.
Inventors:
URURITSUHI BIYUURAA
YURUGEN KIYUURUBUAIN
FUUBAATO KURUUZE
YURUGEN KIYUURUBUAIN
FUUBAATO KURUUZE
Application Number:
JP16769596A
Publication Date:
January 14, 1997
Filing Date:
June 27, 1996
Export Citation:
Assignee:
DAISUTAA JAPAN KK
International Classes:
C09B29/09; C09B29/00; C09B29/039; C09B41/00; C09B67/00; C09B67/10; C09B67/48; D06P1/18; (IPC1-7): C09B29/09; C09B67/48
Attorney, Agent or Firm:
Mitsufumi Ezaki (3 others)