Three-Dimensional Ink Jet Prints–Impact of Infiltrants

Abstract

Among various rapid prototyping methods, some are based on ink-jet printing process. 3D printing process discussed is based on conventional ink-jet technology, using powder material instead of two dimensional substrate and liquid binder as an ink. 3D prints obtained are quite brittle and porous, so usually they are finished by an infiltrant agent prior the final use. Epoxy resin, cyanoacrylate and polyurethane based agent are regularly used for this purpose. The impact of infiltrant type on the selected mechanical properties and surface appearance of three-dimensional ink-jet prints was the focus of the study. The type of infiltrant agent used greatly contributes to the discussed final properties of the prints. As a case study, the application of 3D printing in conventional printing technology was studied. 3D prints can be used as flexographic printing plate directly and as a negative matrix for conventional photopolymer flexographic printing plate production. For the matrix method, it is important that the applied infiltrant penetrates completely into the 3D print without any influence to its dimensions, as well as to have the optimum combination of mechanical and surface properties.