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US 8,540,812 B2Granted
Machine-readable security element for security products
AssigneeMerck Patent GmbH
InventorsBurkhard Krietsch, Matthias Kuntz, Oliver Muth, Manfred Paeschke, Jakob Kuen
Life of this patent
Estimating the term…
Abstract
The present invention relates to a machine-readable security element for security products which comprises at least one particulate substance having electroluminescent properties and a transparent, electrically conductive pigment, to a priming ink for the production of a security element of this type, and to a security product which includes the security element.
Claims10
A printing ink for the production of a security element comprising:
- at least one particulate substance having electroluminescent properties and a transparent, electrically conductive pigment, and
- wherein the concentration of transparent, electrically conductive pigment is such that the formation of continuous conductivity in the resultant security element is prevented.
Dependencies are inferred from the claim text.