Anti-counterfeiting marker for affixing variable entries on...

G - Physics – 09 – F

Patent

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G09F 3/02 (2006.01) B42D 15/10 (2006.01)

Patent

CA 2458927

The invention concerns an anti-counterfeiting marker for providing variable entries (19) and for fixing them on a support (18) to be marked comprising: a sheet-like core (1) having at least a first coloured effect (21), visible when illuminated by a predetermined light, and on the reverse side of the core (1), a brittle thickness (3) having a printing surface (4) designed to be damaged and peeled off the core (1) when scratched or erased in an attempt to counterfeit the variable entries (19), and including at least a second coloured effect (22) visible on the side of the printing surface (4) at least when illuminated by said predetermined light, and designed, by combination with the first coloured effect (21), to produce a third coloured effect (23). The invention also concerns the method for using such a marker and to the resulting marked medium.

L'invention concerne une vignette antifalsification pour la réalisation d'inscriptions variables (19) et leur apposition sur un support (18) à marquer comprenant: une âme (1) en forme de feuille présentant au moins un premier effet coloré (21), visible sous éclairage par une lumière prédéterminée, et au recto de l'âme (1), une épaisseur fragile (3) présentant une face d'impression (4) adaptée pour se détériorer et s'enlever de l'âme (1) sous l'effet d'un grattage ou d'un gommage destiné à falsifier les inscriptions variables (19), et comprenant au moins un deuxième effet coloré (22), visible du côté de la face d'impression (4) au moins sous éclairage par ladite lumière prédéterminée, et adapté pour, en se combinant au premier effet coloré (21), produire un troisième effet coloré (23). L'invention s'étend au procédé d'utilisation d'une telle vignette à un support marqué obtenu.

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