Security paper for currency and bank notes

Details Security paper for currency and bank notes Security paper for currency and bank notes

1990-05-29

1991-03-26

Chin, Peter

Paper making and fiber liberation

Processes and products

Including solid non-waterlaid preform

162134, 162140, D21H 2734

Patent

active

050026364

ABSTRACT:
A metallized plastic strip containing security indicia is incorporated within within currency paper to deter counterfeiting. The plastic strip is made difficult to detect under reflected light by selective pigmentation to match the currency inks. The presence of the security indicia is verified by detection under transmitted light.

REFERENCES:
patent: 4242378 (1980-12-01), Arai
patent: 4398994 (1983-08-01), Beckett
patent: 4652015 (1987-03-01), Crane
patent: 4761205 (1988-08-01), Crane

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