Direct positive silver halide photographic emulsion

Details Direct positive silver halide photographic emulsion Direct positive silver halide photographic emulsion

1985-03-18

1987-01-06

Schilling, Richard L.

Radiation imagery chemistry: process, composition, or product th

Transfer procedure between image and image layer, image...

Diffusion transfer process, element, or identified image...

430547, 430560, 430566, 430577, 430598, G03C 554, G03C 140, G03C 128, G03C 119

Patent

active

046346538

ABSTRACT:
A direct positive silver halide photographic emulsion which is able to provide a high maximum density and a low minimum density, and having a high developing progress. The emulsion contains at least one of the sensitizing dyes represented by following general formulate I, II, III, and IV and at least one of the compounds represented by general formulae V and VI; ##STR1## The substituents are defined in the specification.

REFERENCES:
patent: 2430558 (1947-11-01), Carroll et al.
patent: 3759713 (1973-09-01), Florens et al.
patent: 3822136 (1974-07-01), Sakazume et al.
patent: 3951666 (1976-04-01), Hinata et al.
patent: 4040833 (1977-08-01), Hinata et al.
patent: 4276364 (1981-06-01), Leone
patent: 4552828 (1985-11-01), Toya et al.

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