Processes for producing optical effects layers

The present invention relates to the field of and processes and printing apparatuses for producing optical effect layers (OEL) comprising magnetically oriented platelet-shaped magnetic or magnetizable pigment particles on a substrate. In particular, the present invention relates to processes using p...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: LOGINOV, Evgeny, DESPLAND, Claude-Alain, SCHMID, Mathieu
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:The present invention relates to the field of and processes and printing apparatuses for producing optical effect layers (OEL) comprising magnetically oriented platelet-shaped magnetic or magnetizable pigment particles on a substrate. In particular, the present invention relates to processes using printing apparatuses comprising a first magnetic-field-generating device mounted on a transferring device (TD) and a static second magnetic-field-generating device for producing said OELs as anti-counterfeit means on security documents or security articles or for decorative purposes.