ACTIVE ENERGY RAY-CURABLE SCREEN INK FOR UV-LIGHT EMITTING DIODE, AND PRINTED MATTER

摘要

PROBLEM TO BE SOLVED: To provide an active energy ray-curable screen ink that is curable by an UV-LED active energy ray and has good curability, and good storage stability and good printability as a screen ink.;SOLUTION: The active energy ray-curable screen ink for UV-LED emitting UV rays having an emission peak wavelength ranging from 350 to 420 nm includes N-vinyl-ε-caprolactam, an acryl group-containing compound, a photofragmenting polymerization initiator (A) having a molar extinction coefficient of 100(l/mol*cm) or larger at a wavelength of 365 nm, a hydrogen abstracting polymerization initiator (B) having a molar extinction coefficient of 1,000(l/mol*cm) or larger at a wavelength of 365 nm, and a tertiary amine compound (C) having a molar extinction coefficient of 1(l/mol*cm) or smaller at a wavelength of 365 nm.;COPYRIGHT: (C)2010,JPO&INPIT