Processes for producing optical effects layers

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United States of America Patent

PATENT NO 11772404
APP PUB NO 20210088959A1
SERIAL NO

16962803

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Abstract

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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.

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Patent Owner(s)

  • SICPA HOLDING SA

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Despland, Claude-Alain Prilly, CH 64 649
Loginov, Evgeny Renens, CH 37 311
Schmid, Mathieu Lausanne, CH 48 492

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