Tri-component security numbering ink

Details Tri-component security numbering ink Tri-component security numbering ink

C - Chemistry, Metallurgy

09

D

C09D 11/00 (2006.01) B42D 15/00 (2006.01) B42D 15/10 (2006.01)

Patent

CA 2231464

A security ink is provided containing a colored dye, a colored pigment, and a fluorescent pigment. The ink may be printed on a number of security documents such as checks and may be passed through printing devices such as laser printers without the problem of damage to the ink the printed image, or the printer. The fluorescent pigment in the ink will fluoresce when the document is exposed to ultraviolet light and may be used to provide an authentication feature.

La présente invention a pour objet une encre de sécurité incorporant un colorant, un pigment de couleur et un pigment fluorescent. L'encre convient à l'impression de nombreux documents de sécurité, tels des chèques, et peut être utilisée dans les machines d'impression telles les imprimantes au laser sans risque de détérioration de l'encre, de l'image imprimée ou de la machine. Le pigment fluorescent incorporé à l'encre émet une fluorescence lorsque le document est exposé à la lumière ultraviolette et peut servir aux fins d'authentification de documents.

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