Film element for detecting authenticity

B - Operations – Transporting – 42 – D

Patent

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Details

B42D 15/00 (2006.01) B42D 15/10 (2006.01)

Patent

CA 2687655

The invention relates to a film element (10) for detecting authenticity, particularly for security elements, security papers, documents of value, coins, chips, and the like, characterized in that it comprises a transparent film (12, 14, 16) and/or a motif layer (65, 66) or a structured layer (71), comprising or representing a luminescent motif (13). The transparent film (12, 14, 16, 65, 66) is preferably made of polycarbonate or PMMA, and the luminescent motif (13) is preferably introduced into the film element (10) by means of laser processing, particularly laser engraving, by means of steel embossing or gravure printing or a kiss-cut method or by means of perforation.

La présente invention concerne un élément sous forme de feuille (10) permettant une reconnaissance d'authenticité, notamment pour des éléments de sécurité, des papiers de sécurité, des documents de valeur, des pièces, des jetons et des éléments similaires. Cet élément est caractérisé en ce qu'il comprend une feuille transparente (12, 14, 16) et/ou une couche à motif (65, 66) ou une couche à structure (71) présentant ou représentant un motif luminescent (13). La feuille transparente (12, 14, 16, 65, 66) est de préférence constituée de polycarbonate ou de PMMA et le motif luminescent (13) est de préférence créé dans l'élément sous forme de feuille (10) par traitement laser, notamment par gravure au laser, au moyen d'une impression sur plaque d'acier, d'une héliogravure, d'un procédé de découpage par effleurement ou d'une perforation.

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