| abstract |
(57) [Summary] [Problem] The hue is preferably clear and has good storage stability. In addition, a red aqueous ink composition having a high density of a printed image, excellent water resistance and light resistance is developed. The dye component is represented by the following formula (1): (Wherein, A 1 and A 2 each represent a group having a benzene skeleton or a group having a naphthalene skeleton, G 1 and G 2 each represent a hydrogen atom or a sulfonic acid group, B represents a diamine residue, and Y represents Represents a substituted or unsubstituted amino group or a substituted or unsubstituted hydroxyl group, and R 7 and R 8 Each independently represents a hydrogen atom or a methyl group. A water-based ink composition comprising the compound represented by the formula (1) or a salt thereof. |