Method for producing a multilayer body, multilayer body, method for authenticating a multilayer body, and authentication system

Abstract

A method for producing a multilayer body (1), in particular laminating film or transfer film, wherein a replication layer (12) is applied to a carrier layer (11), and a first graphic code (21) is Fourier-transformed into a two-dimensional Fourier pattern (23) and the two-dimensional Fourier pattern (23) is binarized in order to obtain a binarized two-dimensional Fourier pattern (24), and the binarized two-dimensional Fourier pattern (24) is transferred onto a stamping tool, and the binarized two-dimensional Fourier pattern (24) is molded as a stamping structure into the replication layer (12) at least partially in a first region by means of the stamping tool.

Dependencies are inferred from the claim text.