abstract |
The present invention relates to an optical effect layer (OEL) containing magnetically oriented non-spherical, oblate magnetic or magnetizable pigment particles in a substrate, a swirlable magnetic assembly and process for making the optical effect layer (OEL). Regarding the field of. In particular, the present invention relates to swivel magnetic assemblies and processes that make said OELs as anti-counterfeiting means for security documents or articles, or for decorative purposes. [Selection diagram] FIG. 6A1 |