| abstract |
PROBLEM TO BE SOLVED: To provide an ink composition excellent in fixing speed and image resistance. SOLUTION: General formula (1) [Wherein, R 1 is H or a methyl group; R 2 is H, a methyl group, -COOR 3 (R 3 is a hydrogen atom, an unsubstituted or substituted linear or cyclic alkyl, a substituted or unsubstituted aralkyl group, or M); M is H, an alkali metal or a substituted or unsubstituted A quaternary amine, and two Ms may be the same or different; n represents an integer of 10 or more]. Ink composition. |