Water soluble cationic azo dyestuffs containing a cyclammonium g

Details Water soluble cationic azo dyestuffs containing a cyclammonium g Water soluble cationic azo dyestuffs containing a cyclammonium g

1976-12-27

1979-07-10

Higel, Floyd D.

Bleaching and dyeing; fluid treatment and chemical modification

Treatment of hides, skins, feathers and animal tissues

Tanning

260153, 260154, 260155, 8 25, 8 28, 8 27, 546285, C09B 2700, C09B 4600, D06P 110, D06P 370

Patent

active

041606434

ABSTRACT:
A mixture of water soluble cationic azo dyestuffs devoid of carboxylic acid or sulphonic acid groups, each dyestuff in said mixture containing at least one cyclammonium group and said dyestuffs differing only in the constitution of the said cyclammonium group, said cyclammonium group being a gamma-picolinium group in one dyestuff and a beta-picolinium group in another dyestuff in said mixture, the water-solubility of said mixture being superior to that of the individual dyestuffs, the mixture being particularly useful for the coloration of polymers and copolymers of acrylonitrile.

REFERENCES:
patent: 3948598 (1976-04-01), Okaniwa et al.
patent: 3958287 (1976-05-01), Okaniwa et al.

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