Method of changing the density of image on simple color proof us

Details Method of changing the density of image on simple color proof us Method of changing the density of image on simple color proof us

1988-07-01

1989-12-26

Brammer, Jack P.

Radiation imagery chemistry: process, composition, or product th

Imaging affecting physical property of radiation sensitive...

Readily visible image formation

430257, 430260, 430396, 430952, G03C 500

Patent

active

048897949

ABSTRACT:
A method of obtaining a color proof in which color-separated images are successively exposed onto colored light-sensitive layers. The layers are all transferred to a printing paper. The exposures are performed through a mask having dots of predetermined density and diameter, depending on the type of printing paper. If the color-separated images are positive, the dots are transparent on a dark background. If the color-separated images are negative, the dots are dark on a transparent background and additional exposures are made without the mask.

REFERENCES:
patent: 3615441 (1971-10-01), Deneau
patent: 4262071 (1981-04-01), Larson
patent: 4339525 (1982-07-01), Bratt et al.
patent: 4482625 (1984-11-01), Namiki et al.
patent: 4537470 (1985-08-01), Schoppmeyer
patent: 4571373 (1986-02-01), Musser et al.

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