Encapsulated phthalocyanine blue pigment dispersion was prepared by polymerizale dispersant via free radical polymerization, and further was formulated into the inkjet printing ink. The properties of the ink were investigated. TEM and TGA proved that the pigment was encapsulated with some copolymer of Allyloxy Nonyl-phenoxy propanol polyoxyethylene ether ammonium sulfonate and styrene. The ink using these materials had excellent stability to freeze-thaw treatment and centrifugal forces, and its rheological behavior was close to Newtonian fluid. The properties of the ink satisfied with the requirement of Mimaki JV4-180 and can be used on Mimaki JV4-180.
Shaohai Fu, Kai Zhang, Mingjun Zhang, Anli Tian, "Preparation and Properties of Encapsulated Phthalocyanine for Inkjet Printing Inks" in Proc. IS&T Int'l Conf. on Digital Printing Technologies and Digital Fabrication (NIP26), 2010, pp 202 - 205, https://doi.org/10.2352/ISSN.2169-4451.2010.26.1.art00056_1