Process for the preparation of photographic direct-positive emul

Details Process for the preparation of photographic direct-positive emul Process for the preparation of photographic direct-positive emul

1987-03-18

1987-11-03

Louie, Won H.

Radiation imagery chemistry: process, composition, or product th

Post imaging processing

Positive

430603, 430605, 430567, 430569, 430570, 430940, G03C 108, G03C 1485

Patent

active

047043490

ABSTRACT:
Photographic direct-positive emulsions with silver halide crystals of layered structure are prepared.
The silver halide crystals of these emulsions can form a latent internal image and are superficially converted to silver iodide. Normal surface developers are suitable for developing.

REFERENCES:
patent: 3850637 (1974-11-01), Evans
patent: 4183756 (1980-01-01), Locker
patent: 4431730 (1984-02-01), Urabe et al.
patent: 4581328 (1986-04-01), Matsuyama

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