Multi-layer photosensitive material for color photography

Details Multi-layer photosensitive material for color photography Multi-layer photosensitive material for color photography

1974-08-12

1976-01-13

Klein, David

Gas separation: apparatus

Electric field separation apparatus

With nonelectrical gas treating or conditioning means

96 76R, 96109, G03C 176

Patent

active

039321851

ABSTRACT:
A multi-layer photosensitive material for color photography comprising a support and coated thereon, a first color image-forming layer unit composed of a red-sensitive silver halide emulsion, a second color image-forming layer unit composed of a green-sensitive silver halide emulsion and a third color image-forming layer unit composed of a blur-sensitive silver halide emulsion; characterized in that at least one of said color image-forming layer units has a composite layer structure including a lower layer and an upper layer which are positioned in sequence from the support, said upper layer has a higher sensitivity and a lower maximum developed color density than said lower layer, and at least one of said upper layer and lower layer contains a mercaptan type development inhibitor-releasing compound capable of reacting with an oxidation product of a primary aromatic amine to form a substantially colorless compound.

REFERENCES:
patent: 3620745 (1971-11-01), Seymour
patent: 3632345 (1972-01-01), Marx et al.

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