Method for spectrally sensitizing photographic light-sensitive e

Details Method for spectrally sensitizing photographic light-sensitive e Method for spectrally sensitizing photographic light-sensitive e

1977-02-03

1979-02-06

Schilling, Richard L.

Gas separation: apparatus

Solid sorbent apparatus

Plural solid sorbent beds

96 16, 96 17, 96 88, 96120, 96126, 96133, 96137, G03G 509, G03C 110, G03C 1114, G03C 102

Patent

active

041382668

ABSTRACT:
A method of spectrally sensitizing a photographic light-sensitive emulsion where a water-soluble solution, prepared by dissolving a methine dye having at least one water-soluble group in water in the presence of a "Red Shift Compound", as hereinafter defined, is added to a photographic light-sensitive emulsion to provide a photographic light-sensitive emulsion spectrally sensitized with increased sensitizing efficiency and with reduced fog. The disadvantages caused by the use of high organic solvent contents are avoided and photographic light-sensitive emulsions suitable for high-speed coating are obtained.

REFERENCES:
patent: 2933390 (1960-04-01), McFall et al.
patent: 2937089 (1960-05-01), Jones et al.
patent: 2945762 (1960-07-01), Carroll et al.
patent: 3615641 (1971-10-01), Shiba et al.
patent: 3822135 (1974-07-01), Sakai et al.
patent: 3873324 (1975-03-01), Hinata et al.

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