Security element to prevent counterfeiting of value documents

Details Security element to prevent counterfeiting of value documents Security element to prevent counterfeiting of value documents

G - Physics

06

K

G06K 19/08 (2006.01) G06K 19/06 (2006.01)

Patent

CA 2330540

The invention relates to a security element comprising a magnetic layer and an embossed layer characterised in that the magnetic layer is a soft-magnetic layer and in that the soft magnetic layer has, at least partially, the shape of the embossed pattern of the embossed layer, whereby the embossed layer affects the magnetic properties of the soft-magnetic layer, to a process of manufacture thereof and to the use of such a security element to avoid counterfeiting of value documents.

L'invention concerne un élément de sécurité, comprenant une couche magnétique et une couche gaufrée, caractérisée en ce que la couche magnétique est une couche faiblement ferro-magnétique, et que cette couche prend la forme, au moins partiellement, du motif gaufré de la couche gaufrée. Les couches gaufrées modifient les propriétés magnétiques de la couche faiblement ferro-magnétique. L'invention concerne également un procédé de fabrication de cet élément de sécurité et son utilisation de façon à éviter les contrefaçons de documents de valeur.

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