Trisazo dye and dye composition containing the same

Details Trisazo dye and dye composition containing the same Trisazo dye and dye composition containing the same

1993-02-12

1994-08-23

Ramsuer, Robert W.

Organic compounds -- part of the class 532-570 series

Organic compounds

Azo

534685, 534728, 534815, 106 22K, C09B 3546, C09D 1100

Patent

active

053409299

ABSTRACT:
The present invention provides a trisazo dye represented by the formula: ##STR1## wherein B is a substituted or non-substituted phenyl group, A is a phenyl group substituted with at least one substituent selected from the group consisting of an amino group, a substituted amino and a hydroxyl group, R is a substituted or non-substituted phenyl group or an alkyl group having 1 to 8 carbon atoms, and M is hydrogen, alkali metal, aliphatic alkyl ammonium or alkanol ammonium. An aqueous ink composition and a process for the producing a concentrated solution containing the trisazo dye are also disclosed.

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