Active energy ray-curable ink composition for offset printing, and method of producing printed material using same

Abstract

The present invention provides an active energy ray-curable ink composition for offset printing which can maintain excellent drying characteristics with a small dose of UV light. An active energy ray-curable ink composition for offset printing comprising a compound having an ethylenically unsaturated bond, a photopolymerization initiator, and an epoxidized fat or oil is used. Although epoxidized fat or oil is not polymerized through radical polymerization, the present inventors, who have conducted research, have revealed that the reactivity of a radically polymerizable ink composition is increased through addition of epoxidized fat or oil thereto.

Dependencies are inferred from the claim text.