| 摘要 |
PROBLEM TO BE SOLVED: To provide a radical photocurable ink composition in which generation of a deposition can be prevented and which is excellent in storage stability.SOLUTION: There is provided the radical photocurable ink composition containing: a (meth)acrylate compound containing methanesulfonic acid which is an acid catalyst as a photopolymerizable compound; and a photoinitiator; and further water of less than 10 mass% based on the total amount of the ink composition and 1/200 or more based on the total amount of the photopolymerizable compound. |
