Photographic image-forming method

Details Photographic image-forming method Photographic image-forming method

1981-04-30

1982-06-01

Downey, Mary F.

Radiation imagery chemistry: process, composition, or product th

Silver halide colloid tanning process, composition, or product

430267, 430434, 430443, 430485, 430448, 430599, 430959, 430613, 430405, G03C 530, G03C 106

Patent

active

043328784

ABSTRACT:
A photographic image-forming method comprising imagewise exposing a silver halide photographic light-sensitive element containing a specific hydroquinone derivative in the silver halide emulsion layer of substantially the surface latent image type or at least one hydrophilic colloid layer thereof and then developing the exposed light-sensitive element in the presence of a specific hydrazine compound. The method forms a photographic image having markedly high negative gradation.

REFERENCES:
patent: 3972719 (1976-08-01), Vanreusel et al.
patent: 4221857 (1980-09-01), Okutsu et al.
patent: 4255510 (1981-03-01), Simons

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