Solubilized dyes for inks

Details Solubilized dyes for inks Solubilized dyes for inks

2006-06-06

2006-06-06

Klemanski, Helene (Department: 1755)

Compositions: coating or plastic

Coating or plastic compositions

Marking

C106S031480, C106S031580, C534S752000

Reexamination Certificate

active

07056375

ABSTRACT:
This invention relates to an ink composition comprising a dye represented by Formula I:whereinR1is independently a non-metallic substituent;s is 0, 1, 2, 3, or 4;R2is hydrogen or a non-metallic substituent;R3is a substituted or unsubstituted aromatic or heterocyclic group with the proviso that if R3is a quinoline moiety, the azo group is not bonded to the 5, 6, 7 or 8 position of the quinoline ring; wherein the dye must bear at least one ionizable group that is capable of imparting water solubility to the dye. It also relates to dyes which comprise a specific subset of the above dyes.

REFERENCES:
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patent: 2005/0126431 (2005-06-01), Potenza et al.
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“Filtration and Reciprocity Effects on the Fade Rate of Inkjet Photographic Prints” by D.E. Bugner and C. Suminski, IS&T's NIP16: International Conference on Digital Printing Technologies, Vancouver, BC, Oct. 2006.

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