Ink composition excellent in reproduction of black color and ink

Details Ink composition excellent in reproduction of black color and ink Ink composition excellent in reproduction of black color and ink

1996-11-01

1998-05-19

Klemanski, Helene

Compositions: coating or plastic

Coating or plastic compositions

Marking

106 3151, C09D 1102

Patent

active

057530165

ABSTRACT:
An ink composition capable of offering a combination of a high-quality image with a waterfast image is provided. More specifically, an ink composition is provided which, by virtue of a combination of particular dyes, can faithfully reproduce black color, realize a high-quality image (a sharp image having a high optical density and free from bleed) also on plain paper and, at the same time, offer rapid ink fixation and waterfastness and lightfastness of the printed image. Dyes represented by the following formula (I) are used as a fundamental dye and further combined with a plurality of dyes to constitute the ink composition: ##STR1## wherein R.sup.1 represents --PO(OM).sub.2 or --COOM, X and Y each independently represent an alkoxy and M represents a cation of a group selected from the group consisting of a hydrogen atom, an alkali metal, ammonia, and an organic amine.

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