B - Operations – Transporting – 42 – D
Patent
B - Operations, Transporting
42
D
B42D 15/00 (2006.01) B42D 15/10 (2006.01)
Patent
CA 2671611
The invention relates to a substrate (1) having a safety element (2) comprising at least one optically variable color (3) having pigments (4). The individual pigments have at least one multi-layer design that is capable of interference. According to the invention, the pigments (4) of the optically variable color of the safety element (2) are irreversibly modified in at least one partial region (6) by means of electromagnetic radiation (5) such that the interference effect is visually and/or mechanically clearly recognizably modified, or completely eliminated in this partial region (6).
L'invention concerne un substrat (1) avec un élément de sécurité (2) qui présente au moins une encre (3) optiquement variable dotée de pigments (4). Les pigments individuels sont ici constitués d'au moins une structure multicouche interférentielle. Selon l'invention, les pigments (4) de l'encre optiquement variable de l'élément de sécurité (2) sont, dans au moins une région partielle (6), modifiés au moyen d'un rayonnement électromagnétique (5) de manière irréversible de telle sorte que, dans cette région partielle (6), l'effet d'interférence est modifié de manière visuellement et/ou mécaniquement nettement perceptible, ou est totalement supprimé.
Giesecke & Devrient Gmbh
R. William Wray & Associates
LandOfFree
Security element having an optically variable element does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Security element having an optically variable element, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Security element having an optically variable element will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1600065