Color lithography using a random pattern screen

Details Color lithography using a random pattern screen Color lithography using a random pattern screen

1976-06-02

1977-07-26

Kimlin, Edward C.

Printing

Multicolor

Processes

96 30, 96 31, 96 45, 96 33, 96116, 101450, B41M 114

Patent

active

040375331

ABSTRACT:
Method for substantially improving the shadow detail and color spectrum range of multicolored lithographic reproductions including the preparation of and printing with standard halftone printing plates and overprinting with a secondary printing plate made from a color separation used in making the halftone printing plates; the secondary printing plate being made from a secondary image exposed through a random pattern screen.

REFERENCES:
patent: 547780 (1895-10-01), Gast
patent: 3581660 (1971-06-01), Rapoport et al.
The Lithographer's Manual, 4th Ed., 1966, pp. 5:58-5:61, 6116.
The Handbook of Modern Halftone Photography, Nov., 1965, pp. 100-101.

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