Study on the Curing Velocity of UV Curable Offset Ink

摘要

for researching the effect of main components on curing velocity of UV curable offset ink, UV curable offset inks are prepared by different sorts of prepolymer, monomer and photoinitiator. Also the different photoinitiators are mixed and the quantities of photoinitiator and wax are changed during the preparing process of these UV curable offset inks. Then the curing velocities of these ink samples are tested. The results of research indicate that the configuration of prepolymer and the function degree of monomer affect the curing velocity of inks. Other factors accelerating the curing velocity include selecting appropriate photoinitiator whose absorption curve of spectra corresponds with the "transmission window" of pigment and the radiation peak of UV curing lamp, mixing the different kinds of photoinitiators, choosing the proper quantity of photoinitiator, and adding wax.