Processed paper for documents protected from being reproduced

Details Processed paper for documents protected from being reproduced Processed paper for documents protected from being reproduced

1990-01-09

1992-05-19

Sluby, P. C.

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

428208, 428211, 428915, 428916, B32B 300

Patent

active

051147823

ABSTRACT:
A processed paper for documents protected from being photographically and electrostatically reproduced comprises a paper substrate having a front surface, and a colored ink layer and a silvery ink layer coated over the front surface of the paper substrate, the silvery ink layer having a pattern formed thereon to cause photographic and electrostatic reproductions of information recorded on the processed paper to be illegible due to irregular reflections of light from the pattern on the silvery ink layer.

REFERENCES:
patent: 4578298 (1986-03-01), Nagafuchi
patent: 4830902 (1989-05-01), Plantenga et al.
patent: 4857386 (1989-08-01), Butters et al.
patent: 4883714 (1989-11-01), Stockl et al.
patent: 5015318 (1991-05-01), Smits et al.

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