Highly scratch-resistant multi-layer paint coating, method for producing the same and the use thereof

Invention Patent: "MULTIPLE LAYER VARNISHING, HIGHLY RESISTANT TO SCRATCHES, PROCESS FOR THEIR PRODUCTION AND USE OF THE SAME". Transparent multi-layer varnishes, highly resistant to scratches, and multi-layer varnishes that contain the same, for substrates with or without background paint, can be produced (1) by applying at least one layer of transparent varnish I of a coating material I, curable with actinic and thermal radiation, on the substrate surface and partially hardening it and (2) applying another layer of transparent varnish II of a coating material II, which contains nanoparticles, curable with actinic radiation as well as, optionally, thermally, on the surface of the clear varnish layer (s) I, after which (3) the clear varnish layers I and II, as well as, optionally, the base varnish layer III is hardened together with actinic and thermal radiation. In an alternative embodiment, the clear varnish layers I can optionally be completely cured, together with the base varnish layers III, with actinic and thermal radiation, after which the outer surface of the clear varnish layers I is sprayed, coated with transparent varnish layer II and it is hardened with actinic radiation, as well as, optionally, thermally.