TAGGANTS FOR PRODUCTS AND METHOD OF TAGGANT IDENTIFICATION

摘要

The tagging of articles is performed by applying microparticle taggants (14) to the articles by means of a coating that adheres to particles to the surface of the articles. The microparticle taggants have a specific identifiable code or other quality. The coating material and microparticles are applied to the exterior surface of the articles and dried or cured thereon. The microparticles may have a magnetically attractive quality for purpose of collection of the particles for analysis. The microparticles are washed from the surface of the articles and collected in a vessel (18). The microparticles in the vessel are assembled or collected by means of a magnet (32).