Reduction of color intensity of Kodachrome color film

Details Reduction of color intensity of Kodachrome color film Reduction of color intensity of Kodachrome color film

1983-01-20

1984-09-18

Downey, Mary F.

Radiation imagery chemistry: process, composition, or product th

Color imaging process

430432, 430463, G03C 740

Patent

active

044724950

ABSTRACT:
The color-intensity of exposed and developed Kodachrome color film in the form of color transparencies or continuous strip such as movie film can be reduced by treating selected areas or all of the emulsion side of said color film with an aqueous solution of a dichromate salt acidified with an inorganic mineral acid or formic acid. Any undesirable alteration in color tone is minimized by including a soluble salt of nickel or cobalt in said aqueous solution. The reduction in color-intensity is a function of time and/or acid concentration.

REFERENCES:
patent: 2132154 (1938-10-01), Gaspar
patent: 2195419 (1940-04-01), McQueen et al.
Spencer, "Color Photography in Practice", 1948, 3rd Ed., pp. 216-225, 277-280.
Watkins, The Focal Guide to Colour Film Processing, 1978, pp. 160-169.

Affiliated with

Also associated with

Rating

Reduction of color intensity of Kodachrome color film does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Reduction of color intensity of Kodachrome color film, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Reduction of color intensity of Kodachrome color film will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-794397