ACTINIC RADIATION CURING JET PRINTING INK

摘要

An actinic radiation curing jet printing ink consisting of a pigment, a compound having two or more ethylenic double bonds, a compound having one elthylenic double bond and a molecular weight of 90 to 210, 2-benzyl-2-dimethylamino-1- (4-morpholinophenyl)butanone-1 (first initiator), and an acylphosphine oxide (second initiator). This ink exhibits a low viscosity, excellent photopolymerizability, and remarkably good curing properties and dispersion stability, does not cause dissolution or swelling of ink-contacting members of a printer, and is excellent in stability of ejection from an nozzle, adhesion to substrates of recording, solvent resistance, and water resistance.