A jet ink and jet printing process

摘要

The invention relates to a process of ink jet printing which comprises the steps of printing an ink onto a substrate and curing the ink using radiation from an LED. The invention also relates to a cationic ink jet ink for use in such a process, the ink comprising a cationically curable component including at least one oxirane, cyclic ester or cyclic carbonate monomer and a photoinitiation system including an iodonium salt photoinitiator and a sensitizer, the photoinitiation system being able to absorb radiation at a wavelength in the range of from 300 nm to 420 nm.