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US 10,336,124 B2Granted
Security element comprising an interference pigment and a nanometric filler
AssigneeOberthur Fiduciaire SAS
InventorsJacques Machizaud, Aurelie Maman, Michel Camus
Life of this patent
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Abstract
A security element, preferably a security wire, for a secure document, that may include a masking structure for reducing the visibility of a surface of the element when the latter is located inside the document or on the surface of the document, the masking structure comprising a nanometric filler and a multilayer interference pigment.
Claims24
A security element for a secured document, comprising:
- a security structure comprising an opaque layer and at least one opening in this opaque layer;
- and
- a masking structure superposed at least partially on the security structure, for decreasing visibility of the security element in reflected light, the security element being present within the secured document or on a surface of the secured document, the masking structure comprising a nanoscale filler and a multilayer interferential pigment, the security element being visible under transmitted light through the masking structure.
Dependencies are inferred from the claim text.