RADIATION CURING INKJET INK COMPOSITION, INKJET RECORDING METHOD, RECORDED MATTER, INK SET FOR INKJET RECORDING, INK CARTRIDGE, AND INKJET RECORDING DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a radiation curing inkjet ink composition having viscosity suitable for an inkjet recording method, and in a recorded image, exhibiting excellent adhesion with a recording medium and excellent followability (flexibility) to bending of the recording medium.

SOLUTION: As polymerizable compounds, the radiation curing inkjet ink composition includes an urethane oligomer and a dendritic polymer prepared by adding a specific polyvalent mercapto compound to a carbon-carbon double bond in the β position as to a carbonyl group in a part of (meth)acrylate groups of a polyfunctional (meth)acrylate compound represented by a general formula (1).

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