NON-COPIABLE MATERIALS PRODUCED BY A SELECTIVE TRANSFER ADHESIVE PROCESS
Original Publication Date: 1996-Jun-30
Included in the Prior Art Database: 2004-Apr-07
Xerox Disclosure Journal
CFC International markets coated sheets which can be used to overcoat xerographic prints by sandwiching the sheets over a photocopy and applying heat and pressure. The properties of the sheets are such that the coating is only transferred to the printed area of a document. The blank paper or unimaged region is not coated. The process is give the acronym STAMP (Selectively Transferable Adhesive Magnetic Process) because the most common films use magnetic coatings which render printed areas magnetically readable. White coatings to "white out", or render invisible, printed areas are also available. It is proposed that the use of "whiteout-type" STAMP film containing an invisible fluorescent taggant would make areas of a document invisible so that they could not be photocopied or read under normal light.