Process for coloring surfaces

Details Process for coloring surfaces Process for coloring surfaces

1975-10-28

1977-08-09

Pitrelli, John F.

Printing

Antismut device

Anti-offset material application

35 9H, 40137, 101211, 283 6, 356 71, B41M 514, G09F 1914

Patent

active

040403530

ABSTRACT:
The invention relates to a process for coloring surfaces in such a way that two juxtaposed colored areas cannot be visually perceived as distinct from one another unless their distance from the eye drops below a predetermined distance. The first area is colored by juxtapositioning unitary zones of at least two colors and the second area is colored by the resultant color of the optical mixture of the colors used for the first area. One important application of the invention is in display advertising.

REFERENCES:
patent: 2277405 (1942-03-01), McKiernan
patent: 2385992 (1945-10-01), Jobe
patent: 2937567 (1960-05-01), Harry et al.
patent: 3103880 (1963-09-01), Sanford et al.
patent: 3147699 (1964-09-01), Land
patent: 3256770 (1966-06-01), Wicker
patent: 3381612 (1968-05-01), Lecha
patent: 3675948 (1972-07-01), Wicker
patent: 3752073 (1973-08-01), Lorber
Pseudo-Isochromatic Plates for Testing Color Perception, Am. Optical Co., Copyright 1940.

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