Laser-markable substrate, and associated manufacturing method

Details Laser-markable substrate, and associated manufacturing method Laser-markable substrate, and associated manufacturing method

B - Operations, Transporting

41

M

B41M 5/00 (2006.01) D21H 21/40 (2006.01) D21H 21/44 (2006.01) D21H 21/48 (2006.01)

Patent

CA 2754867

The present invention relates to a laser-markable substrate, comprising at least one material capable of forming a colored mark under laser irradiation and at least one tamper-proof agent producing an irreversible visible coloration when an attempt is made to chemically erase the mark.

La présente invention concerne un substrat marquable au laser, comportant au moins un matériau apte à former une marque colorée sous irradiation laser, et au moins un agent d'infalsification produisant une coloration visible irréversible lors d'une tentative d'effacement chimique de la marque.

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