Method of producing a simulated watermark

Details Method of producing a simulated watermark Method of producing a simulated watermark

1991-03-11

1992-06-02

Lawrence, Evan

Coating processes

Transparency or translucency increased

427288, B05D 500, B05D 128

Patent

active

051185261

ABSTRACT:
A method of producing a simulated watermark in which intense, focused heat is momentarily applied, in the desired watermark pattern, onto a thin solid matrix of waxy material placed in contact with a sheet of uncoated paper. This results in impression of a durable translucent mark. The wax penetrates the paper without the need wither for chemical action or the application of significant direct pressure, and creates regions of translucence in the paper fibers.

REFERENCES:
patent: 30945 (1860-12-01), Karcheski
patent: 130676 (1872-08-01), Westerberg
patent: 334199 (1886-01-01), Schmidt
patent: 1479337 (1924-01-01), Temple
patent: 2021141 (1935-11-01), Boyer
patent: 3048100 (1962-08-01), Livingstone
patent: 3985927 (1976-11-01), Norris et al.
patent: 4231906 (1980-11-01), Giorgetti
patent: 4824486 (1989-04-01), Lafler

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