Silver salt direct positive emulsion

Details Silver salt direct positive emulsion Silver salt direct positive emulsion

1977-05-06

1979-04-24

Louie, Jr., Won H.

Gas separation: apparatus

Solid sorbent apparatus

96 64, 96101, 96107, G03C 128

Patent

active

RE0299740

ABSTRACT:
Light-sensitive photographic direct positive silver salt emulsions for use in photographic elements are disclosed. The emulsions contain silver salt grains, typically silver halide grains. The silver salt grains are comprised of a core containing centers which promote the deposition of photolytic silver and a shell covering the core. The shell is fogged and develops to silver without exposure.

REFERENCES:
patent: 2500140 (1950-03-01), Teal et al.
patent: 2717833 (1955-09-01), Wark
patent: 3178282 (1965-04-01), Luckey et al.
patent: 3206313 (1965-09-01), Porter et al.
E. Moisar & S. Wagner, Investigation of the Topography of Latent Interior and Exterior Images, Bunsengesellschaft fur Physikalische Chemie. Berichte 67, pp. 356-359 (1963) No. 4.

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