PROCEDE DE FABRICATION D'UN POINCON POUR EMBOUTIR, PAR EXEMPLE DES TOILES EN VUE DE FORMER DES FILIGRANES ET DISPOSITIF POUR LA MISE EN ÓOEUVRE DE CE PROCEDE.

摘要

The invention concerns a process for making an embossing punch. The process comprises the steps: (a) the values of an image are put into numeric form; (b) the punch is automatically and directly engraved. The numeric image is converted into a continuous surface and the level curves of said surface are plotted to provide the continuous engraving path. Applications in embossing fabrics for the manufacture of watermarked paper.