Dye mixtures for paper stock

Details Dye mixtures for paper stock Dye mixtures for paper stock

1986-06-26

1987-06-09

Clingman, A. Lionel

Bleaching and dyeing; fluid treatment and chemical modification

Dye or potential dye composition, additive, treatment,...

Mixed dyes, noncomplexed

8549, 8639, 8641, 8682, 8685, 8919, C09B 6200, C09B 2900

Patent

active

046717994

ABSTRACT:
Novel dye mixtures which contain dyes of the general formulae I ##STR1## and II ##STR2## in the form of the alkali metal and ammonium salts, where m and n are each 0 to 4, p and q are each 1 or 2, r is 0 or 1, m+n is 2, 3 or 4, B.sup.1 and B.sup.2 are each hydrogen or chlorine, or B.sup.1 and B.sup.2 together form part of a fused benzene ring which is unsubstituted or substituted by SO.sub.3 H, R.sup.1 and R.sup.2 independently of one another are each hydrogen or unsubstituted or substituted lower alkyl or cyclohexyl, or R.sup.1 and R.sup.2 together with the nitrogen form a saturated heterocyclic structure, and Z is a reactive radical which is usually present in reactive dyes and which is bonded to the diazo or coupling component, are very useful for dyeing paper stocks.

REFERENCES:
patent: 2300572 (1942-11-01), Hoyer et al.
patent: 3954796 (1976-05-01), Kuster
patent: 4000158 (1976-12-01), von Tobel

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