Title:
MANUFACTURE OF CATIONIC AZO DYE SOLUTION
Document Type and Number:
Japanese Patent JPS57139145
Kind Code:
A
Abstract:
Concentrated, stable solutions, with a low salt content, of cationic azo dyestuffs of the formula (I) wherein A denotes the radical of an aromatic-carbocyclic or aromatic heterocyclic diazo component, R denotes alkylene, R1 denotes hydrogen or alkyl, R2 denotes alkyl, alkenyl or aralkyl, R3 denotes alkyl, R4 denotes hydroxyalkyl having 2 or more C atoms, R5 denotes halogen, alkyl, alkoxy, aryloxy, acyl or acylamino, m denotes 0, 1, 2, 3 or 4, and An- denotes a carboxylate ion, and wherein the cyclic and acyclic substituents can carry further non-ionic substituents, are prepared by the reaction of amines of the formula A-NH2 with coupling components of the formula in aqueous carboxylic acids and, if appropriate, organic water-soluble solvents.
Inventors:
KARURU RINHARUTO
HARARUTO GURAINIHI
GIYUNTAA BEEMUKE
HARARUTO GURAINIHI
GIYUNTAA BEEMUKE
Application Number:
JP236282A
Publication Date:
August 27, 1982
Filing Date:
January 12, 1982
Export Citation:
Assignee:
BAYER AG
International Classes:
C09B41/00; C09B44/00; C09B44/04; C09B67/34; C09B67/54; (IPC1-7): C09B41/00; C09B44/04; C09B67/34