Influence of Surface Energy of Polymer Films on Spreading and Adhesion of UV-Flexo Inks

Abstract

Most technological processes involved in polygraphic production are based on the
interaction between liquids and solids. An important role is thereby attributed to
the wetting phenomenon which ensures ink transfer and adhesion of printing inks,
primers, varnishes to the surface of substrates. The interaction between ink and
solids in the printing process provides intermolecular interaction in both, the liquid
(cohesion) and the liquid with solids phases (adhesion). This research studies
the influence of surface energy of polymeric films and polarity on spreading and
adhesion of flexographic UV-inks.