Method of using thermochromic material on security documents and product

A method of document security comprising providing a substrate having a spot of thermochromic material printed thereon capable of undergoing a reversible color change upon exposure to heat, associating alpha instructional information with the spot, reproducing the alpha information on a second subst...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	GREGORY, JR., VANCE P
Format:	Patent
Sprache:	eng
Schlagworte:	CHECKING-DEVICES COLOUR PRINTING HANDLING OF COINS OR OF PAPER CURRENCY OR SIMILAR VALUABLEPAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING,DISPENSING, CHANGING OR DEPOSITING LINING MACHINES PERFORMING OPERATIONS PHYSICS PRINTING PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES STAMPS TRANSPORTING TYPEWRITERS
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!