Security device with foil camouflaged magnetic regions and...

G - Physics – 08 – B

Patent

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Details

G08B 13/14 (2006.01) B32B 3/00 (2006.01) B32B 9/04 (2006.01) B32B 19/00 (2006.01) B32B 27/14 (2006.01) B32B 29/00 (2006.01) B41M 3/12 (2006.01) B42D 15/00 (2006.01) D02G 3/00 (2006.01) G06K 7/08 (2006.01) G06K 7/10 (2006.01) G06K 19/00 (2006.01) G06K 19/06 (2006.01)

Patent

CA 2386792

A method of covering, embedding or burying magnetically encodable regions, invisible to the naked eye at least on one side, in a magnetic/metallic security device begins by providing a security device carrier substrate (18) having an imaged metallic region (14). A foil film (24) is provided on a release coated carrier film (22). One or more magnetic regions (26) are provided on either the foil film layer or the carrier substrate. Patterned, flat, or roller heated dies (30) are used to contact and bond the foil film (24) to the security device carrier substrate (18) in at least those regions of the magnetic regions (26) thereby producing a security device having covered, embedded or camouflaged magnetically encodable regions.

L'invention se rapporte à un procédé permettant de recouvrir, de noyer ou d'enfouir des régions susceptibles d'être codées magnétiquement, invisibles à l'oeil nu sur au moins une face, dans un dispositif de sécurité métallique/magnétique. Ledit procédé consiste à utiliser un substrat de support (18) pour dispositif de sécurité, doté d'une région métallique imagée (14). Un film métallique (24) est disposé sur un film support (22) de démoulage. Une ou plusieurs régions métalliques (26) sont formées sur la couche de film métallique ou sur le substrat de support. Des matrices chauffées (30) à motifs, plates ou en cylindres sont utilisées pour faire entrer le film métallique (24) en contact avec le substrat de support (18) du dispositif de sécurité au moins au niveau des régions magnétiques (26) et pour produire ainsi un dispositif de sécurité présentant des régions recouvertes, noyées ou camouflées et susceptibles d'être codées magnétiquement.

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