초록 ▼

Thermally-imageable articles which allow verification of the genuineness of the articles, and methods of producing such articles are disclosed. The thermally-imageable articles includes a substrate and a light transmissive/reflective platy pigment in or on one or both surfaces of the article. The ar

Thermally-imageable articles which allow verification of the genuineness of the articles, and methods of producing such articles are disclosed. The thermally-imageable articles includes a substrate and a light transmissive/reflective platy pigment in or on one or both surfaces of the article. The article may be analyzed or inspected to determine the presence and nature of the platy pigment and accordingly, the authenticity ofthe article. When viewed from different incident angles, the pigment produces a unique pearlescent, color shift, or iridescent type effect.

대표청구항 ▼

[ What is claimed is:] [1.] A method of authenticating a printed article, comprising the steps of:a. providing a thermally-imageable article comprising:substrate having first and second surfaces;at least one thermally-imageable layer disposed over at least said first surface of said substrate; andat

[ What is claimed is:] [1.] A method of authenticating a printed article, comprising the steps of:a. providing a thermally-imageable article comprising:substrate having first and second surfaces;at least one thermally-imageable layer disposed over at least said first surface of said substrate; andat least one security layer comprising a resin binder and a light transmissive/reflective platy pigment dispersed therein, said security layer disposed over said thermally-imageable layer, and said thermally-imageable article having thermally printed indicia thereupon; andb. analyzing said thermally-imageable article to determine whether said article includes said security layer.