| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an active energy ray-curable ink composition for offset printing, which shows improved emulsification characteristics and has good printability, and a printing method using the composition for inhibiting water stains or density reduction in a printed matter.SOLUTION: The active energy ray-curable ink composition for offset printing comprises a compound having an ethylenically unsaturated bond, a photopolymerization initiator, and a colorant. The composition contains, as a part of the compound including an ethylenically unsaturated bond, a tri-functional monomer having no oxypropylene group and three ethylenically unsaturated bonds in a molecule. The content of the tri-functional monomer is 1 mass% to 10 mass% with respect to the whole composition.</p> |
