Credit of security document comprising an anti-forgery...

Details Credit of security document comprising an anti-forgery... Credit of security document comprising an anti-forgery...

B - Operations, Transporting

41

M

B41M 3/14 (2006.01) B42D 15/00 (2006.01) B42D 15/10 (2006.01) G03G 21/04 (2006.01)

Patent

CA 2112476

The invention concerns a credit or security document comprising an anti-forgery device. In accordance with the invention the anti-forgery device is in the form of a discontinuous reflecting surface (100) formed by a succession of individual reflecting elements (101) applied by transfer to a face (10) of the document (D) and organised in a general direction (DG); each individual reflecting element (101) has both a dimension of several millimetres and optimum compactness for a given reflection area, in such a way that the reflection phenomenon is clearly apparent to the naked eye and blinds the known optical analysis or reproduction systems. The invention also concerns a carrier strip with transferable reflecting pattern for producing such a document. Use in particular for the production of banknotes provided with an anti-forgery device applied by transfer.

Carte de crédit ou de sécurité comprenant un élément anti-contrefaçon. Cet élément est sous forme d'une surface réfléchissante discontinue (100) formée par une succession d'éléments réfléchissants individuels (101) appliqués par transfert sur une des faces (10) de la carte (D) et disposés dans une direction générale (DG). Chaque élément réfléchissant (101) comprend une dimension de plusieurs milllimètre et une compacité optimale pour une zone réfléchissante donnée de façon que le phénomène de reflexion soit visible à l'oeil nu et aveugle les systèmes connus d'analyse optique ou de reproduction. L'invention présente également une bande porteuse à motif réfléchissant transférable pour la fabrication de cette carte. L'invention est utilisée pour la production de billets de banque comprenant un élément anti-contrefaçon appliqué par transfert.

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