SECURITY INK AND SECURITY ARTICLE, SUCH AS A BANKNOTE, WITH A TRI-LUMINESCENT EFFECT

A security ink contains at least a first fluorescent and phosphorescent pigment and a second fluorescent pigment, wherein the security ink if excited with a first wavelength emits radiation with a first emission spectrum, if excited with a second wavelength emits radiation with a second emission spe...

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Bibliographische Detailangaben
Hauptverfasser: GUTMANN, Roland, BITZER, Thomas, RÖSLER, Sylke, CARL, Frank Adrian, HUTH, Katharina, UHLICH, Dominik, DAUMANN, Benedikt
Format: Patent
Sprache:eng ; fre
Schlagworte:
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