| 摘要 |
PROBLEM TO BE SOLVED: To provide a dye which has extremely excellent (ozone) gas resistance, extremely high print density, excellent color rendering property, and a high-quality black hue with low saturation when recorded on inkjet-exclusive paper, and to provide an ink composition containing the dye, particularly, a black ink composition for inkjet recording.SOLUTION: The present invention provides an azo compound represented by formula (1) or a tautomer thereof, or a salt thereof [Ris a (C1-C4) alkyl group or the like; Ris a cyano group or the like; Ris H, a halogen atom or the like; Ris a carboxy group or the like; R-Rare a (C1-C4) alkoxy group or the like; group A is a substituted phenyl group or substituted naphthyl group].SELECTED DRAWING: None |
