Method of making color separation plates used as a proof and a p

Details Method of making color separation plates used as a proof and a p Method of making color separation plates used as a proof and a p

1981-01-15

1983-01-18

Mancene, Gene

Card, picture, or sign exhibiting

Signs

Multiple layer

427271, 427270, 434 81, 428 38, 101150, 1014011, 430307, 355 79, 352234, G09F 1900, B05D 300, G03B 2702, B41M 114

Patent

active

043685870

ABSTRACT:
According to this process, a plurality of translucent monochrome supports of different colors are prepared. Each support is constituted by a transparent film coated on one side with a coloring matter. Then an elementary pattern is made by a selective scraping with a tool. By superimposing the engraved monochrome supports a final image is obtained by transparency which is the synthesis of the elementary patterns. The process lends itself particularly well to three-color or four-color printing.

REFERENCES:
patent: 302226 (1884-07-01), Barnard
patent: 799609 (1905-12-01), Ludwig
patent: 1250713 (1917-12-01), Thornton
patent: 1614924 (1927-01-01), Hutchison
patent: 2293696 (1942-08-01), Burchell
patent: 3264106 (1966-08-01), Alldis
patent: 3661575 (1972-05-01), Ketley et al.
patent: 3683779 (1972-08-01), Lifton
patent: 3705762 (1972-12-01), Ladd et al.
patent: 3913477 (1975-10-01), Howland et al.
patent: 4038078 (1977-07-01), Sukurai et al.

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