VARNISH COMPOSITION TRANSFERABLE BY INKJET SUITABLE FOR SUBLIMABLE OR THERMAL-TRANSFER INK

摘要

The present invention relates to a varnish which is for covering the surface of a substrate and deposited by inkjet, to a process for preparing said varnish and to the use thereof as a laminable and/or overprintable ink or varnish.

主权项

1. A varnish to coat the surface of a substrate and deposited by inkjet, the composition of the varnish at least comprising:
a hardenable oligomer; a hardenable monomer, at least one hardenable monomer contained in the composition being selected from a group formed by alkoxylated and/or poly-alkoxylated acrylic monomers having one or more di- or tri-acrylates; and a photoinitiator;wherein at least one hardenable oligomer is selected from among polyesters—preferably hexa-functional polyester acrylates—and/or hexa-functional aliphatic urethane acrylates and/or epoxy resins, such that the weight ratio between hardenable oligomer and hardenable monomer is higher than 1:6 and lower than 1:2, and in that the varnish has a viscosity of between 5 and 40 mPa·s at 25° C. and a surface tension of between 19 and 35 mN/m at 25° C.