Data carrier having an intaglio motif

Details Data carrier having an intaglio motif Data carrier having an intaglio motif

B - Operations, Transporting

42

D

B42D 15/00 (2006.01) B41N 1/06 (2006.01)

Patent

CA 2699234

The invention relates to a data carrier (10) having a recess printing motif (12) that, when viewed with the naked eye, appears as a halftone image having a continuous tonal value progression, wherein the recess printing motif (12) comprises a plurality of fine, projecting printed lines (20) not resolvable by the naked eye that are modulated in the width and/or height thereof in order to produce the different tonal values of the halftone image.

L'invention concerne un support de données (10) comportant un motif d'héliogravure représentatif (12) qui est perçu, observé à l'oeil nu, comme étant une image en demi-teinte à progression continue des nuances. Le motif d'héliogravure représentatif (12) comprend une pluralité de fines lignes d'impression (20) en relief ne pouvant être résolues à l'oeil nu, qui sont modulées en continu, en largeur (b) et/ou en hauteur (h), pour produire les différentes nuances de l'image en demi-teinte.

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