Authenticatable hot stamping film and method of producing and using same

摘要

A method of making an authenticatable hot stamping film (20). The film includes a hot stamping layer (15) and an authenticating layer (24) comprising lacquer and a colorless activatable authenticating agent dissolved therein, wherein the authenticating agent is activatable by an activator to become visible. The authenticating agent is chemically activatable by a chemical activator to produce a visible reaction product or it is a photochromic material and the activator is light. The film (20) is authenticated by activating the authenticating agent in the applied hot stamping film to become visible, whereby there is an indication of authenticity.