Azo compound, ink composition, and colored object

Details Azo compound, ink composition, and colored object Azo compound, ink composition, and colored object

2005-06-21

2008-09-23

Klemanski, Helene (Department: 1793)

Compositions: coating or plastic

Coating or plastic compositions

Marking

C534S803000, C534S806000, C347S100000

Reexamination Certificate

active

07427319

ABSTRACT:
The present invention relates to an azo compound represented by the following formula (1):(wherein, in the formula (1), R1represents a hydrogen atom; a hydroxyl group; a carboxyl group; a (C1-C4)alkyl group which may be substituted by a hydroxyl group or a (C1-C4)alkoxy group; or the like, and A represents an aliphatic amine residue having a carboxyl group or a sulfo group, respectively;) or a salt thereof; an ink composition containing the same; and an inkjet recording method and a colored object using the same. Said azo compound has a high color value and has a hue between yellow and red or a brown hue. The ink containing said azo compound has satisfactory storage stability, and exhibits, when printed therewith, a stable ejection property even on a thermal type inkjet printer, and gives a print of high quality (superior in light fastness, ozone gas fastness and moisture fastness).

REFERENCES:
patent: 4804411 (1989-02-01), Eida et al.
patent: 6867286 (2005-03-01), Holloway et al.
patent: 2002-332426 (2002-11-01), None
patent: 2003-73596 (2003-03-01), None
patent: 02/46316 (2002-06-01), None
patent: 2004/007619 (2004-01-01), None
English translation of JP 2002/332426; Nov. 2002.
International Search Report dated Sep. 13, 2005.

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