Security identification badge

B - Operations – Transporting – 42 – D

Patent

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Details

B42D 15/00 (2006.01) B42D 15/10 (2006.01) G04F 1/00 (2006.01) G07C 1/00 (2006.01)

Patent

CA 2104480

A self-expiring Security Identification Badge is provided. The badge includes a base substrate (11) having a void indicia area (14). Also included is an ink substrate (30) having an expired indicia area (34) of a soluble ink and an adhesive surface (32). Also included is an overlay substrate (40) having an ink dissolver (42) and a display surface (44). When the I.D. Badge is issued, the inked substrate (30) is attached to the base substrate (11), with the inked substrate (30) covering the void indicia area (14). The overlay substrate (40) is then placed over and attached to the inked substrate (30), with the ink dissolver (42) in contact with the soluble ink (34) of the inked substrate (30). The ink dissolver (42) of the overlay substrate (40) contacts and coats with the soluble ink (34) of the inked substrate (30) to dissolve the ink and allow the ink to migrate through the overlay substrate (40) to the display surface (44), where it can be visually perceived, in a preselected time interval.

La présente invention vise une Plaque d'identification à échéance automatique composée d'un support (11) caractérisé par une zone d'empreinte portant la mention nulle (14). L'objet de l'invention comporte aussi une surface d'identification à encrer (30) recevant une empreinte portant la mention expirée (34), laquelle est fabriquée avec de l'encre soluble et une surface adhésive (32). Est aussi comprise une pellicule de recouvrement (40) réunissant un solvant à encre (42) et une surface d'affichage (44). Lorsque la plaque d'identification est émise, la surface d'identification encrée (30) est apposée sur le support (11) de manière que cette surface encrée (30) recouvre la zone d'empreinte portant la mention nulle (14). La pellicule de recouvrement (40) est alors placée sur la surface d'identification encrée (30) et fixée à cette dernière, le solvant à encre (42) entrant en contact avec l'encre soluble (34) de la surface d'identification encrée (30). Le solvant à encre (42) de la pellicule de recouvrement (40) entre en contact et se marie avec l'encre soluble (34) de la surface d'identification encrée (30) pour dissoudre l'encre et lui permettre de traverser la pellicule de recouvrement (40) jusqu'à la surface d'affichage (44), où elle devient visible après une période prédéterminée.

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