Printing apparatus and process for producing optical effect layers comprising oriented non-spherical oblate magnetic or magnetizable pigment particles

Abstract

The present invention relates to the field of optical effect layers (OEL) (x10) comprising magnetically oriented non-spherical oblate magnetic or magnetizable pigment particles on a substrate, spinneable magnetic assemblies (x00) and processes for producing said optical effect layers (OEL). In particular, the present invention relates to spinneable magnetic assemblies and processes for producing said OELs as anti-counterfeit means on security documents or security articles or for decorative purposes.