A precursor plate for the manufacture of intaglio printing plates for intaglio printing of sheets of security papers and a method of manufacturing an engraved plate

摘要

A method of manufacturing an engraved plate used in intaglio printing, said plate being engraved by a tool, for example a laser beam, characterised in that the engraving tool uses data from a depthmap, based on a three-dimensional raster image of the document to be printed.