Polyamines complexed to anionic dyes, thereby forming water-solu

Details Polyamines complexed to anionic dyes, thereby forming water-solu Polyamines complexed to anionic dyes, thereby forming water-solu

1996-10-28

1998-08-04

Klemanski, Helene

Compositions: coating or plastic

Coating or plastic compositions

Marking

106 3157, 106 3158, 106 3159, C09D 1102

Patent

active

057887535

ABSTRACT:
An ink-jet ink for ink-jet printers is provided, comprising: (a) an aqueous-based vehicle; and (b) an anionic dye complexed with a polyamine in an amount sufficient to form a pH-insensitive, water-soluble, dye:polyamine complex that acts like a cationic dye. Further, a method of converting the anionic dye to the cationic dye for formulating the ink-jet ink having a desired pH is provided. The method comprises adding a sufficient amount of the polyamine to form the dye:polyamine complex. The dye:polyamine complex is a complex of the dye and the polyamine polymer, which is cationic. Consequently, this complex behaves as a cationic dye. These ink-jet inks show remarkable waterfastness on a variety of common office papers and are pH-insensitive and even in some cases, completely pH-independent. These inks are thus stable over a wide pH range. In addition, the ink-jet inks exhibit superior ink-to-ink bleed when printed next to a drop of another color ink which contains an anionic polymer or carboxylated colorant and resist crusting or drying in ink-jet nozzles.

REFERENCES:
patent: 4155768 (1979-05-01), Adams
patent: 4197135 (1980-04-01), Bailey et al.
patent: 4267088 (1981-05-01), Kempf
patent: 4664708 (1987-05-01), Allen
patent: 4789400 (1988-12-01), Solodar et al.
patent: 5017644 (1991-05-01), Fuller et al.
patent: 5026425 (1991-06-01), Hindagolla et al.
patent: 5098474 (1992-03-01), Pawlowski et al.
patent: 5129948 (1992-07-01), Breton et al.
patent: 5223028 (1993-06-01), Aulick et al.
patent: 5254159 (1993-10-01), Gundlach et al.
patent: 5342439 (1994-08-01), Lauw
patent: 5352283 (1994-10-01), Beach et al.
patent: 5482545 (1996-01-01), Aoki et al.
patent: 5503666 (1996-04-01), Mennicke et al.
patent: 5534052 (1996-07-01), Mennicke et al.

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