Black ink for ink-jet recording

Details Black ink for ink-jet recording Black ink for ink-jet recording

2006-04-18

2006-04-18

Klemanski, Helene (Department: 1755)

Compositions: coating or plastic

Coating or plastic compositions

Marking

C106S031480, C106S031500, C106S031520

Reexamination Certificate

active

07029523

ABSTRACT:
A black ink for ink-jet recording, which is excellent in durability of image (including durability of image quality) and discharging property, obtained by dissolving and/or dispersing at least one black azo dye having a particular property or structure in an aqueous medium, wherein a transition metal ion content of the black ink is 0.1 mmol/l or less.

REFERENCES:
patent: 2004/0053988 (2004-03-01), Taguchi et al.
patent: 2004/0070654 (2004-04-01), Taguchi et al.
patent: 2004/0080596 (2004-04-01), Taguchi et al.
patent: 2004/0154496 (2004-08-01), Taguchi
patent: 2004/0187734 (2004-09-01), Ozawa et al.
patent: 2004/0187736 (2004-09-01), Taguchi et al.
patent: 2004/0187738 (2004-09-01), Taguchi et al.
patent: 0422668 (1991-04-01), None

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