SOLID MARKING COMPOSITION AS WRITING MEANS, A WRITING INSTRUMENT, AN OPTICALLY VARIABLE MARKING LAYER AND USE OF A PLURALITY OF OPTICALLY VARIABLE PIGMENTS

摘要

The present invention relates to a solid marking composition as writing meansin a writing instrument. The solidmarking composition comprises a solid matrix containing at least one type ofoptically variable interference pigment flakes. Thesolid marking composition provides a document or article with a copy andcounterfeit protection feature, and is preferably used in awriting instrument for applying hand-written anti-counterfeit markings andsignatures.