The technology of inkjet printing is used in various applications, accomplishing evolution every day, with the trend toward on-demand printing and small lot printing. In particular, the markets of UV curable inkjet have shown growth in various applications, mainly in Europe and North America, because they can be used with nonabsorbent substrates such as plastic films and they fix quickly.The main polymerization mechanisms of UV curable inkjet are free radical polymerization. Because acrylate monomer has abundant raw materials, it can reduce a cost. However the photoinitiators and acrylate monomers in free radical inks can cause strong skin irritation and skin sensitization.We developed a new UV curable inkjet ink with low cost. The newly developed inkjet ink uses a free radical polymerization along with superior safety raw materials. The new ink has good curing properties with good adhesion for plastic films and superior safety.
Yoshihiro Yasuo, Hiraoka Takao, Morita Mitsunobu, Noguchi Soh, "A New UV Curable Inkjet Ink" in Proc. IS&T Int'l Conf. on Digital Printing Technologies and Digital Fabrication (NIP28), 2012, pp 58 - 60, https://doi.org/10.2352/ISSN.2169-4451.2012.28.1.art00019_1