ACTIVE ENERGY RAY-CURABLE TYPE OFFSET INK AND PRINTED MATERIAL OBTAINED BY PRINTING THE COMPOSITION

摘要

PROBLEM TO BE SOLVED: To provide an active energy ray-curable type offset ink excellent in storage stability and excellent in curability and rub resistance required to obtain stable print quality, and its printed material.

SOLUTION: The active energy ray-curable type offset ink is an active energy ray-curable ink composition including a photopolymerization initiator, a compound having an ethylenic double bond, tert-butylhydroquinone and a pigment. The photopolymerization initiator is an alkylphenone photopolymerization initiator and/or an acylphosphine oxide photopolymerization initiator and has a melting point of 50-200°C. The tert-butylhydroquinone is included in an amount of 0.01-1 wt.% in the total amount of the ink.

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