Method for color and black and white reproduction and formulatio

Details Method for color and black and white reproduction and formulatio Method for color and black and white reproduction and formulatio

1987-12-14

1989-11-07

Hess, Bruce H.

Record receiver having plural interactive leaves or a colorless

Having a colorless color-former, developer therefor, or...

Method of use, kit, or combined with marking instrument or...

427152, 430293, 503205, 503206, B41M 516

Patent

active

048792675

ABSTRACT:
A more efficient and versatile method for color and halftone reproduction of artwork utilizing a colorless formulation that can be incorporated into art materials. When a mildly acidic spray is applied to the artwork which contains the formulation, the formulation turns blue. The blue color allows reproduction of red and yellow in certain photographic systems and can also be used in halftone reproduction to preserve light colors during the exposure step to eliminate dots from the background areas.

REFERENCES:
patent: 4477593 (1984-10-01), Tomlinson

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