| abstract |
(57) [Problem] To provide a water-based ink capable of providing a recorded matter which retains excellent coloring properties and light resistance, has excellent gas resistance, and can be stored for a long period of time. SOLUTION: The aqueous ink of the present invention is an aqueous ink containing at least a coloring material and water as a main solvent, which contains at least a dye represented by the following general formula (I) as the coloring material. Features. Embedded image (Wherein, M represents Na, Li, K or NH 4 , n Represents 0 or 1, R 1 represents a hydrogen atom, an alkyl group, R 2 represents a hydrogen atom, a sulfone group or an alkyl group; R 3 represents an alkyl group, a substituted alkyl group or a substituted phenyl group; ) |