Ink jet recording ink, ink jet recording ink set, and ink...

Compositions: coating or plastic – Coating or plastic compositions – Marking

Reexamination Certificate

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C106S031750, C347S100000

Reexamination Certificate

active

10869969

ABSTRACT:
An ink jet recording ink is provided containing water, a pigment that is self-dispersible in water, a water-soluble organic solvent, and a nonionic polymer of which the amount is preferably in a range of about 5% by mass to about 200% by mass relative to the total mass of the pigments. The nonionic polymer is preferably selected from a group consisting of polyvinyl alcohol, polyvinyl pyrrolidone, polyacrylamide, poly N-vinyl acetamide, and the like. The absolute value of zeta potential of the ink is preferably in the range of about 5 mV to about 30 mV.

REFERENCES:
patent: 6051057 (2000-04-01), Yatake et al.
patent: 6059868 (2000-05-01), Kasperchik
patent: 6281267 (2001-08-01), Parazak
patent: 7067590 (2006-06-01), Sato et al.
patent: 2002/0040660 (2002-04-01), Momose
patent: 2004/0119801 (2004-06-01), Suzuki et al.
patent: 2004/0244645 (2004-12-01), Doi et al.
patent: 2005/0157131 (2005-07-01), Iinuma et al.
patent: 08245914 (1996-09-01), None
patent: A 11-80636 (1999-03-01), None
patent: A 2000-7964 (2000-01-01), None
English machine translation of JP 08-245914.

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