Optically variable security element

Details Optically variable security element Optically variable security element

G - Physics

07

D

G07D 7/12 (2006.01)

Patent

CA 2577522

The invention relates to an optically variable security element (16) for protecting valuable objects. Said element comprises at least one piece of information and a transparent optically variable layer (30) that is applied to the information. According to the invention, the information is formed by series of layers comprising a coloured printed background layer (22) and a line gravure printed layer (24) that is applied to the printed background layer (22).

L'invention concerne un élément de sécurité optiquement variable (16) pour protéger des objets de valeur, cet élément comportant au moins une information sur laquelle est disposée une couche transparente optiquement variable (30). Selon l'invention, l'information est formée d'une superposition de couches comprenant une couche colorée d'impression de fond (22), sur laquelle est imprimée une couche en héliogravure (24).

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