Title:
PRODUCTION OF THICK SOLUTION OF ANIONIC DYE
Document Type and Number:
Japanese Patent JPS62184062
Kind Code:
A
Abstract:
Stable concentrated aqueous solutions of anionic reactive azo dyes in particular are obtained in a comparatively simple manner on using instead of the otherwise customary mineral acids aromatic sulphonic acids with or without acid group-containing ion exchangers as acid donors for the diazotisation.
Inventors:
YOAHIMU BORUFU
KARURU HAINTSU BORUFU
RAINHORUTO MARIA KURITSUPAA
KARURU HAINTSU BORUFU
RAINHORUTO MARIA KURITSUPAA
Application Number:
JP1531687A
Publication Date:
August 12, 1987
Filing Date:
January 27, 1987
Export Citation:
Assignee:
BAYER AG
International Classes:
C07C245/00; C09B41/00; C09B67/24; C09B67/26; D06P1/06; (IPC1-7): C09B67/26
Attorney, Agent or Firm:
Heikichi Odashima