METHOD OF PRINTING 3D-MICROOPTIC IMAGES ON PACKAGING SYSTEMS

摘要

The invention relates to a method for printing 3D-microoptic images on packaging systems in an inline process comprising providing a substrate, printing a plurality of images on at least part of the first major surface of the substrate, applying a transparent varnish layer on the printed first major surface of the substrate, and forming a plurality of relief features on the outer surface of the varnish layer, wherein the relief-features are micro-lenses.