Ink-jet inks comprising pigment precursors

Details Ink-jet inks comprising pigment precursors Ink-jet inks comprising pigment precursors

1997-12-12

2000-08-15

Klemanski, Helene

Compositions: coating or plastic

Coating or plastic compositions

Marking

106 316, 106 3175, 106 3177, 106 3178, 106 3179, 106 3186, 106 3188, 106 3189, 106493, 106494, 106495, 106496, 106497, 106498, C09D 1102

Patent

active

061029963

ABSTRACT:
A pigment-based ink composition is provided which employs a pigment precursor that is soluble in a non-aqueous solvent. Preferably, the ink composition is in the form of an aqueous, two-phase system wherein the pigment precursor is solubilized in a high boiling, water-insoluble organic compound. Optionally, a second high boiling compound miscible with both aqueous and organic phases and at least one amphiphile are also present.

REFERENCES:
patent: 5234634 (1993-08-01), Janoff et al.
patent: 5484943 (1996-01-01), Zambounis et al.
patent: 5531816 (1996-07-01), Wickramanayake
patent: 5561232 (1996-10-01), Hao et al.
patent: 5626654 (1997-05-01), Breton et al.
patent: 5713989 (1998-02-01), Wickramanayake et al.
patent: 5788749 (1998-08-01), Breton et al.
patent: 5830267 (1998-11-01), Zambounis et al.
"Latent pigments activated by heat" published in Nature on Jul. 10, 1997, vol. 388, pp. 131-132.

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