ACTIVE LIGHT RAY-CURING INK COMPOSITION, INKJET RECORDING METHOD, DECORATIVE SHEET, DECORATIVE SHEET MOLDING, METHOD FOR MANUFACTURING IN-MOLD MOLDED PRODUCT, AND IN-MOLD MOLDED PRODUCT

摘要

PROBLEM TO BE SOLVED: To provide an active light ray-curing ink composition excellent in injection molding suitability (ink flow tolerance), adherence and stretchability in high temperatures, and capable of providing images suppressed in cracks in punching processing.SOLUTION: An active light ray-curing ink composition contains: (component A) a monofunctional radically polymerizable monomer; (component B) a polyfunctional oligomer whose glass transition temperature is ≤20°C and whose acrylate value is ≥300 g/value; and (component C) a bifunctional radically polymerizable monomer having a viscosity at 25°C of ≤15 mPa-s, wherein: the component A contains an N-vinyl compound and a compound represented by formula (I); the content of the N-vinyl compound in the whole ink composition amount is 10 to 50 mass%; and the content of the component A in the whole ink composition amount is ≥70 mass%.