| 摘要 |
PROBLEM TO BE SOLVED: To provide an aqueous ink composition which can improve color developability.SOLUTION: An aqueous ink composition comprises at least a dye represented by formula (1) or salt thereof, and 1,2-alkane diol (R, R, R-Rindependently represent H, a carboxy group, a sulfo group, a nitro group, an alkoxy group which may comprise a substituent or the like; Rand Rindependently represent H, a sulfo group, an alkoxy group which may comprise a substituent, an alkyl group or the like; and n is 0 or 1). |
