Security paper for currency and banknotes

Details Security paper for currency and banknotes Security paper for currency and banknotes

1985-12-05

1987-03-24

Bell, Paul A.

Printed matter

Having revealable concealed information, fraud preventer or...

Utilizing electromagnetic radiation

162103, 283 58, 283 74, 283901, B42D 1500, D21D 300, D21H 510

Patent

active

046520155

ABSTRACT:
Security devices in the form of metalized plastic films are incorporated within a security paper such as banknotes and other valuable documents during the papermaking process for viewing solely by means of transmitted light. The devices comprise printing of extreme fine line clarity and high opacity such that legibility is possible by means of transmitted light while remaining completely indiscernable under reflected light.

REFERENCES:
patent: 210089 (1878-11-01), Brooks
patent: 1929828 (1933-10-01), Schlitz
patent: 4186943 (1980-02-01), Lee
patent: 4462867 (1984-07-01), Fuller
patent: 4552617 (1985-11-01), Crane

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