G - Physics – 06 – K
Patent
G - Physics
06
K
G06K 19/06 (2006.01) B41M 3/14 (2006.01) B42D 15/00 (2006.01) B42D 15/10 (2006.01) G07D 7/02 (2006.01) G07D 7/12 (2006.01) B41M 1/10 (2006.01)
Patent
CA 2463037
The invention relates to a code (1), in particular a barcode, which is printed on a substrate (10), in particular a bank note, using a line intaglio printing process. Individual coded areas (2, 3, 4) differ from one another in their coloured layer thickness. The printing ink contains luminescent and/or electrically conductive substances and/or substances that absorb X-rays and/or infra-red radiation, in such a way that the different coloured layer thicknesses can be differentiated using different signal intensities.
L'invention concerne un codage (1), notamment un code barre, imprimé sur un support (10), notamment un billet de banque, par héliogravure. Les différentes zones de codage (2, 3, 4) se différencient par l'épaisseur de leur couche colorée. La couleur d'impression contient des substances luminescentes et/ou électriquement conductrices et/ou absorbant les rayons X et/ou infrarouges, de sorte que les différentes épaisseurs d'une couche colorée se distinguent par leur différentes intensité de signal.
Giesecke & Devrient Gmbh
Ridout & Maybee Llp
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