| 摘要 |
Aqueous ink which contains compounds having one or more structures represented by general formula (1) in a molecule or salts thereof and which has a clear hue and is excellent in light fastness and moisture resistance is provided. wherein each of R1 to R5 and R7 independently, represents a hydrogen atom, a halogen atom, an unsubstituted or substituted alkyl group, an unsubstituted or substituted alkoxy group, an unsubstituted or substituted alkenyl group, an unsubstituted or substituted aryl group, a hydroxyl group, -COOH, -SO3H, -CONR8R9 or -COXR10, and R6 represents a hydrogen atom, a cyano group, an aminocarbonyl group, a sulfomethyl group or -SO3H |
