Color picture development process

Details Color picture development process Color picture development process

1976-02-12

1978-02-21

Kelley, Mary F.

Gas separation: apparatus

Electric field separation apparatus

With control means responsive to sensed condition

96 60BF, 96 663, G03C 716, G03C 532, G03C 530

Patent

active

040750140

ABSTRACT:
The invention relates to a color-positive process for producing a color surface picture using color paper having diffusion-resistant and protected color couplers or plastic-coated or plastic uncoated color paper of color negatives, and features color developing the picture at a temperature in the range of from about 20.degree. C to about 50.degree. C with a developer having added thereto a development accelerator having the formula: ##STR1## wherein R.sub.1 and R.sub.2 are H, CH.sub.3, or CH.sub.2 --CH.sub.3 and "n" is in the range of from 1 to 4, bleach fixing and stabilizing the picture in a solution having a pH from about 5.5 to about 6.0 without an intermediate step of washing or a stop-fixing bath, and thereafter, washing the picture.

REFERENCES:
patent: 2197017 (1940-04-01), Wood
patent: 2306923 (1942-12-01), Wood
patent: 2311428 (1943-02-01), Wood
patent: 3372030 (1968-03-01), Jacobson
patent: 3582322 (1971-06-01), Edens et al.
patent: 3647452 (1972-03-01), Hendess et al.
patent: 3741763 (1973-06-01), Amano et al.
patent: 3879202 (1975-04-01), Yamaguchi
Mason, Photographic Processing Chemistry, 1966, pp. 39-44.

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