Method of enhancing the information legibility of multi-color gr

Details Method of enhancing the information legibility of multi-color gr Method of enhancing the information legibility of multi-color gr

1976-08-09

1977-12-27

Klein, David

Gas separation: apparatus

Apparatus for selective diffusion of gases

Membrane having ring containing organic compound

96 24, 101DIG1, G03C 716, G03C 700

Patent

active

040653099

ABSTRACT:
The information legibility of multi-color graphic material is enhanced by a method illustrated as follows: Frames of panchromatic silver-halide black and white negative film are separately exposed through red, green, and blue transmitting filters respectively to an image of the original multicolor material. The negative images on the frames of film are developed and fixed, and then printed on respective red, green, and blue-dye developing positive transparency materials. The red-dye, green-dye and blue-dye positive transparencies are then superimposed and retained in register.

REFERENCES:
patent: 2326321 (1943-08-01), Barmeier
patent: 3044202 (1962-07-01), Lindmark
patent: 3798033 (1974-03-01), Yost
Flader et al.; Modern Photoengraving .COPYRGT. 1948 pp. 119-126, Modern Photoengraving Publ., Chicago.
The Lithographers Manual, Shapiro, 4th Ed. (6-10-15) Graphic Arts Technical Foundation, Pittsburgh, Pa.

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