Process for producing gelatino-silver halide photographic light-

Details Process for producing gelatino-silver halide photographic light- Process for producing gelatino-silver halide photographic light-

1974-06-28

1976-02-03

Klein, David

Gas separation: apparatus

Electric field separation apparatus

Electrode retaining or supporting means

427377, 427379, 427380, G03C 176

Patent

active

039363066

ABSTRACT:
In a process for producing a gelatino silver halide light-sensitive material containing a high silver halide content comprising applying a gelatino silver halide emulsion layer having a silver halide to gelatin weight ratio of at least 0.8 and a gelatin-containing protective layer to a non-hygroscopic film support having good dimensional stability and then drying the layers, the improvement which comprises drying the layers on the support when the water content becomes less than 300% based on the mean drying amount defined as: ##EQU1## BY CONTACTING SAID MATERIAL WITH AIR HAVING A RELATIVE HUMIDITY OF FROM 50 TO 75%.

REFERENCES:
patent: 2611716 (1952-09-01), Robijns
patent: 3039871 (1962-06-01), Scott
patent: 3507678 (1970-04-01), Shimizu
"An Appraisal of Drying Systems," Fisher, O., Photographic Engineering, Vol. 4, 1953, pp. 226-230.
Making And Coating Photographic Emulsions, Zelikman, V. L., 1964, p. 30.
Photographic Emulsion Chemistry, Duffin, G. F., 1966, p. 158.
Photographic Chemistry, D. H. O. John, 1963, pp. 170-173.

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