Chromogenic Anticounterfeit and Security Papers: An Easy and Effective Approach.

ABSTRACT: The synthesis and preparation of 12 chromogenic polymers used to build an intelligent label for security paper applications are described. The process involves coating paper sheets with the polymers. Depending on the number of different polymers used in a combinatory way, a maximum of 12¹² combinations is possible, thus creating a matrix that is practically impossible to counterfeit. Currently, most anticounterfeiting proposals for paper-based packaging and documents involve some sort of verification under ultraviolet radiation, and the requirement of additional equipment often relegates the end-user to a passive role. In contrast, in our approach, the combination of sensory polymers in an array gives rise to an invisible label, i.e., an owner cryptographic key, which becomes vi

SUBMITTER: Guirado-Moreno JC 

PROVIDER: S-EPMC8704190 | biostudies-literature | 2021 Dec

REPOSITORIES: biostudies-literature