Dye set for improved color quality for ink-jet printers

Details Dye set for improved color quality for ink-jet printers Dye set for improved color quality for ink-jet printers

1997-05-06

1998-06-30

Klemanski, Helene

Compositions: coating or plastic

Coating or plastic compositions

Marking

106 3158, C09D 1102

Patent

active

057727422

ABSTRACT:
In accordance with the invention inks suitable for use in ink-jet printers and method for formulating the same are provided. The present dye set exhibits excellent color quality and lightfastness across a range of media. Furthermore, the dye set preserves its performance over a wide pH range, particularly low pH. This functionality across a wide pH range, enables the use of pH- sensitive bleed control mechanisms. More specifically, a specific dye set for formulating the yellow, magenta, and cyan inks is disclosed, comprising Direct Yellow 132 and Acid Yellow 23; Magenta 377 and Acid Red 52; and Direct Blue 199 and Acid Blue 9; respectively.

REFERENCES:
patent: 5143547 (1992-09-01), Kappele
patent: 5145519 (1992-09-01), Kappele
patent: 5273573 (1993-12-01), Kappele

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