Tamper evident identification documents

B - Operations – Transporting – 44 – F

Patent

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B44F 1/12 (2006.01)

Patent

CA 2603057

A tamper evident security document (10) including a transparent substrate (20), an ink receptive coating (24) applie to at least one side of the substrate (20), said coating including a laser markable additive dispersed therein, at least on laser formed marking or image (14) created in the coating by exposure of the laser markable additive to laser radiatio and printed data (16) applied to the ink receptive coating, wherein, the marking or the image in the coating is remove or destroyed upon an attempt to remove or alter the printed data.

L'invention concerne un document de sécurité (10) révélant les tentatives d'altération, comprenant un substrat transparent (20), un revêtement amoureux de l'encre (24) appliqué sur au moins une face du substrat (20), ledit revêtement comprenant, sous forme dispersée, un additif pouvant être marqué au laser, au moins une image (14) ou une marque formée par laser, créée dans le revêtement par exposition de l'additif à un rayonnement laser, ainsi que des données imprimées (16) appliquées sur le revêtement. La marque ou l'image créée dans le revêtement est supprimée ou détruite après toute tentative visant à supprimer ou altérer les données imprimées.

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