Ink containing tris-azo dye, ink-jet recording method and appara

Details Ink containing tris-azo dye, ink-jet recording method and appara Ink containing tris-azo dye, ink-jet recording method and appara

1992-01-02

1993-06-01

Bell, Mark L.

Compositions: coating or plastic

Coating or plastic compositions

Metal-depositing composition or substrate-sensitizing...

534679, 534680, 534678, 534754, 534755, 534766, 534770, 534773, 346 11, C09D 1102

Patent

active

052155781

ABSTRACT:
An ink composition that includes water, a water-soluble organic solvent and a dye. The dye is represented by the following Formula, in which the number of sulfonic acid groups and the number of amino groups are each not less than 2, and the number of sulfonic acid groups is less than that of amino groups: ##STR1## Q.sub.1 denotes a substituted phenyl group, pyridyl group or naphthyl group; Q.sub.2 denotes a substituted or unsubstituted p-phenylene group or 1,4-naphthylene group; Q.sub.3 is a SO.sub.3 M-substituted or unsubstituted diaminopyridyl group or a diaminophenyl group substituted by COOM or SO.sub.3 M; M denotes an alkaline metal, ammonium or organic ammonium; and n denotes 0 or 1.

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patent: 4804411 (1989-02-01), Eida et al.
patent: 4841037 (1989-06-01), Ohta et al.
patent: 4864324 (1989-09-01), Shirota et al.
patent: 5082496 (1992-01-01), Yamamoto et al.

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