METHOD OF MANUFACTURING AN ENGRAVED PLATE

• Main Authors: GIORI, FAUSTO, PERRIER, JACQUES, DAUW, DIRK, MATHYS, LAURENT
• Format: Patent
• Language: English; French; German
• Published: 02.03.2005
• Edition: 7
• Subjects: CLADDING OR PLATING BY SOLDERING OR WELDING; COLOUR PRINTING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; LINING MACHINES; MACHINE TOOLS; MATERIALS FOR SURFACES USED IN PRINTING MACHINES FOR PRINTING,INKING, DAMPING, OR THE LIKE; METAL-WORKING NOT OTHERWISE PROVIDED FOR; PERFORMING OPERATIONS; PICTORIAL COMMUNICATION, e.g. TELEVISION; PREPARING SUCH SURFACES FOR USE AND CONSERVING THEM; PRINTING; PRINTING PLATES OR FOILS; PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; PROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF PRINTINGSURFACES; SOLDERING OR UNSOLDERING; STAMPS; TRANSPORTING; TYPEWRITERS; WELDING; WORKING BY LASER BEAM

The invention relates to a system for manufacturing an engraved plate for intaglio printing of sheets of security papers, said system comprising a computer and at least one engraving tool controlled by said computer in accordance with a programmed engraving process, wherein said computer is programmed to control the engraving tool in accordance with three-dimensional guiding pixel data (X, Y, Z) of a master depth-map of one said sheet to engrave a non engraved plate pixel by pixel, and wherein said master depth-map is generated on said computer on the basis of at least one original depth-map stored on said computer, said original depth-map consisting of a three-dimensional raster image of at least a part of one said security paper. The invention also relates to a system and method for generating said guiding data.