Silver halide photographic material and image-forming process

Details Silver halide photographic material and image-forming process Silver halide photographic material and image-forming process

1997-03-05

1998-03-17

Chea, Thorl

Radiation imagery chemistry: process, composition, or product th

Achromatic image produced from chromatic reproduction image

430364, 430365, 430390, 430402, 430549, 430574, 430583, 430584, 430565, G03C 720, G03C 732, G03C 730

Patent

active

057285110

ABSTRACT:
A silver halide photographic material is provided which exhibits nearly equal sensitivities and gamma values with respect to yellow, magenta and cyan to form a black-and-white image of neutral black or sepia tone, even when it is processed with a color developer free from benzyl alcohol.
The silver halide photographic material is made up of a substrate and at least one silver halide emulsion layer formed on the substrate. The silver chloride content of silver halide grains constituting the silver halide emulsion layer is 95 mole % or above, the silver halide emulsion is spectrally sensitized by a specific sensitizing dye, and the silver halide emulsion layer contains a yellow coupler, a magenta coupler and a cyan coupler. The image-forming process is characterized by developing the silver halide photographic material with a color developer substantially free from benzyl alcohol.

REFERENCES:
patent: 4863846 (1989-09-01), Tanaka et al.
patent: 5362616 (1994-11-01), Edwards et al.
patent: 5418116 (1995-05-01), Gottschalk et al.

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