Phthalocyanine dyestuffs and process for preparing them

Abstract

Abstract A water-soluble phthalocyanine dyestuff of the formula ##STR1## IN WHICH Pc represents copper phthalocyanine, nickel phthalocyanine or cobalt phthalocyanine, R 3 represents lower alkyl, B represents --CH 2 --CH 2 --, --CH 2 --CH 2 --NH--, ##STR2## A represents phenylene or phenylene substituted by lower alkyl, lower alkoxy, carboxyl, hydroxyl, sulfo, nitro, chlorine or bromine, or naphthylene, X represents --CH 2 -- or ##STR3## R 1 and R 2 each stand for hydrogen, lower alkyl, hydroxyethyl, sulfoethyl, carboxyethyl, benzyl, phenyl, carboxyphenylene or sulfophenylene, or together with the nitrogen atom piperidyl or morpholyl, n and m each represent 0 or 1, a, b and c each stand for a number from 1 to 4, the sum of a, b and c being at most 6, said dyestuff being suitable for the dyeing or printing of leather or textile materials consisting of native or regenerated cellulose, silk or polyamides, the dyeings and prints obtained on said materials being distinguished by deep tints and very good fastness properties to light and to wetting.

Inventors

• 👤 Fritz Meininger
• 👤 Klaus Hunger
• 👤 Hartmut Springer

Bibliographic Details