| abstract |
An ink composition and an ink set having good ink aging stability and curing sensitivity are provided. An ink composition comprising a pigment, water, a polymerizable compound having a (meth) acrylamide structure, and a polymerization initiator represented by the following general formula (I) is used. In the following general formula (I), R 1 to R 3 each independently represents a hydrogen atom, a saturated or unsaturated hydrocarbon group having 10 or less carbon atoms, or a heterocyclic group, and R 4 represents a metal ion. [Selection] Figure 1 |