| 摘要 |
PROBLEM TO BE SOLVED: To provide an ink composition which has an extremely low content of a low molecular weight component in a film after curing, can provide an image excellent in blocking resistance without bleeding and is an excellent in ejection restoring property.SOLUTION: There is provided an ink composition which comprises: (a) a polymer compound containing a repeating unit (a-1) having a partial structure represented by the general formula (1) and a repeating unit (a-2) having a partial structure represented by the general formula (2); and (b) an organic solvent. In the general formula (1), Rand Reach independently represent an alkyl group having 1 to 6 carbon atoms and may bond to each other to form a 4- to 6-membered alicyclic structure. In the general formula (2), Rrepresents a hydrogen atom or a methyl group, X represents a divalent linking group containing one or more selected from -OC(=O)-, -NHC(=O)- and -O-, and *s individually represent a binding site with the main chain or the side chain in the polymer compound. |
