| 摘要 |
PROBLEM TO BE SOLVED: To provide an acidic dye ink that has a viscosity suitable for industrial inkjet printers, and also has excellent ink storage stability.SOLUTION: The present invention provides an ink composition comprising an acidic dye, a compound represented by the following formula (1), and water (where the acidic dye does not include an acidic dye having a mono azo structure in a dye molecule) [in the formula (1), Rand Rindependently represent a hydrogen atom or an alkyl group, and Ris an alkyl group].SELECTED DRAWING: None |
