MUMBAI, India, Sept. 7 -- Intellectual Property India has published a patent application (202617085547 A) filed by Sicpa Holding Sa on July 13, 2026, for Processes For Producing Optical Effects Layers.
Inventors include Benninger, Nathalie; Despland, Claude-Alain; and Callegari, Andrea.
The application for the patent was published on September 04, 2026, under issue no. 36/2026.
Abstract: The invention relates to the field of the protection of security documents such as for example banknotes and identity documents against counterfeit and illegal reproduction. In particular, the present invention provides processes for producing optical effect layers (OELs) comprising at least a first motif and a second motif, each of said motifs independe...