Security element with flip-flop color change effect and magnetic properties, article compromising such a security element and method for producing said security element and said article

摘要

A security element ( 1 ) for application or embedding in objects ( 300 ), in particular for documents of value such as bank notes, credit cards and the like, is structured in a multi-layer fashion and has an interference element I, which produces a color shift effect, a layer M with magnetic properties and a reflection layer R, which is located between interference element I and magnetic layer M. Designs of the invention pro-vide a negative writing 20 and/or coding 11 in reflection layer R and magnetic layer M. According to a further design diffraction structures 2 are integrated in the security element 1 . Such a security element in particular is suitable as window security thread 200 in bank notes.