Authentication process

Details Authentication process Authentication process

1993-01-04

1995-01-31

Goodrow, John

Radiation imagery chemistry: process, composition, or product th

Microcapsule, process, composition, or product

430 10, G03G 9093

Patent

active

053858034

ABSTRACT:
A process for the authentication of documents which comprises generating developed documents in an electophotographic apparatus, or in a laser printer with an encapsulated toner comprised of a core comprised of polymer, an optional pigment, and an infrared emitting component, and thereover a polymeric shell; and subjecting the document to an infrared reader whereby the infrared component is detected spectroscopically.

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patent: 5107130 (1992-04-01), Frese
Xerox Disclosure Journal, vol. 13, No. 4, Jul./Aug. 1988, "Copy Sheet Size and Weight Sensing", Norman D. Robinson, Jr.

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