Ink receptive, water soluble polymers are commonly used in ink jet coatings and applications. To render these coatings more resistant to water, crosslinking of these materials is often desirable. Several recent developments in the approach to improved water resistance for some unique, water soluble polymers will be described. Namely, techniques for crosslinking of poly(vinyl pyrrolidone-co-N-[3-(dimethylamino)propyl]methacrylamide) neutralized with sulfuric acid, poly(vinyl caprolactam-co-N-[3-(dimethylamino)propyl] methacrylamide-co-hydroxyethylmethacrylate) neutralized with hydrochloric acid, and poly(2-ethyl-2-oxazoline-co-ethyleneimine) (Aquazol®/PEI). Crosslinking chemistries to be explored will include commercial aziridine, epoxy, and melamine/formaldehyde crosslinking agents. Judicial selection of a crosslinkable polymer can enable insight into polymer architecture via a blended ink jet receptive surface coating. This technique will be explored with hydroxyethyl methacrylate-co-N-[3-(dimethylamino)propyl]methacrylamide neutralized with hydrochloric acid and polyvinyl pyrrolidone (PVP) chemistries.
David K. Hood, Michael A. Tallon, Raymond Bret Clark, Edward J. Johnson, Jim DiBattista, "Approaches to Crosslinking Unique, Water Soluble Polymers Used in Ink Jet Receptive Coatings" in Journal of Imaging Science and Technology, 2005, pp 646 - 651, https://doi.org/10.2352/J.ImagingSci.Technol.2005.49.6.art00014