ASSEMBLY COMPRISING AN ARTICLE TO BE AUTHENTICATED AND AN AUTHENTICATING COMPOSITION, AND RELATED METHODS

摘要

The invention relates to an assembly including an article to be authenticated, an authentication composition and a member for applying the composition, capable of retaining said composition by capillarity, wherein the article to be identified contains a first reagent selected from nickel, copper, cobalt or iron derivatives, or from dithiooxamide or oxime derivatives capable of reacting with a second reagent of the authentication composition selected respectively from among dithiooxamide or oxime derivatives or from nickel, copper, cobalt or iron derivatives, so as to form a visible and permanent coloured mark.