Article identification material and method and apparatus for usi

Details Article identification material and method and apparatus for usi Article identification material and method and apparatus for usi

1982-10-07

1985-09-10

Lusignan, Michael R.

Coating processes

Fraud or tamper detecting

8527, 106 20, 118 46, 118712, 427 8, 427157, B41M 314, B44F 112, B05C 1100

Patent

active

045405956

ABSTRACT:
An ink that fluoresces in the near infrared is used to mark documents such as bank checks for automatic identification. Markings with this ink are reliably detectable, even in the presence of other markings commonly found on such documents. The preferred fluorescent material of our invention is a phenoxazine dye 3,7-BIS(diethylamino) phenoxazonium nitrate.

REFERENCES:
patent: 3027830 (1962-04-01), Yaeger
patent: 3105908 (1963-10-01), Burkhardt et al.
patent: 3395284 (1968-07-01), Smith
patent: 3422266 (1969-01-01), Ramsley
patent: 3634017 (1972-01-01), Ottawa
patent: 3703628 (1972-11-01), Philipson, Jr.
patent: 3705043 (1972-12-01), Zabiak
patent: 3731222 (1973-05-01), Drexhale
patent: 3933094 (1976-01-01), Murphy et al.
patent: 3946203 (1976-03-01), Hecht et al.
patent: 3969612 (1976-07-01), McJohnson
patent: 3993894 (1976-11-01), Walker
patent: 4007462 (1977-02-01), Wetsel, Jr.
patent: 4013997 (1977-03-01), Treadwell, III
patent: 4202491 (1980-05-01), Suzuki
patent: 4248636 (1981-02-01), Sasaki et al.
patent: 4451530 (1984-05-01), Kaule et al.
Richard C. Benson and Henry A. Kues, Absorption and Fluorescence Properties of Cyanine Dyes, Journal of Chemical and Engineering Data, vol. 22, No. 4, 1977.

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