Identification and authentication using liquid crystal material markings
AssigneeSicpa Holding SA
InventorsXavier Marguerettaz, Frédéric Gremaud, Aurélien Commeureuc, Vickie Aboutanos, Thomas Tiller, Olivier Rozumek
Life of this patent
Estimating the term…
Abstract
The present invention relates to a marking of polymeric liquid crystal material having determined optical characteristics allowing its authentication and reading by a machine and its authentication by the human eye. The marking is applied onto an item, good or article by a variable information printing process. The marking is in the form of indicia representing a unique code which allows for an easy authentication by the human eye and a secure tracking and tracing of the marked item, good or article throughout its life cycle.
Claims30
A composition comprising a monomeric or oligomeric precursor of a liquid crystal polymer and at least one of an inorganic luminescent compound, an organic luminescent compound, an IR-absorber, a magnetic material, and a forensic marker.
Dependencies are inferred from the claim text.