ULTRAVIOLET-CURING INK-JET INK COMPOSITION

摘要

PROBLEM TO BE SOLVED: To provide an ultraviolet-curing ink-jet ink composition excellent in curability with its cured film also excellent in solvent resistance and friction resistance. SOLUTION: This composition contains a polyurethane (meth)acrylate synthesized from a polyisocyanate and hydroxy (meth)acrylate or a polyurethane (meth)acrylate synthesized from a polyol with its molecular weight less than 800 and (meth)acryloyloxyisocyanate. The composition should preferably contain no non-reactive diluent for better curability and cured film resistance to solvents and friction.