Silver halide color photographic materials containing 3-anilino-

Details Silver halide color photographic materials containing 3-anilino- Silver halide color photographic materials containing 3-anilino-

1974-04-15

1976-01-27

Brown, J. Travis

Gas separation: apparatus

Electric field separation apparatus

With nonelectrical gas treating or conditioning means

96 56, 96 95, 96100, G03C 176, G03C 140

Patent

active

039350169

ABSTRACT:
A color photographic material comprising a support having coated thereon at least one silver halide emulsion layer containing a magenta dye forming coupler having a 3-anilino-5-pyrazolone ring in which the ortho position of the anilino group at the 3-position is substituted with a halogen atom, an alkyl group, an alkoxy group, an amide group, an aryl group, an aryloxy group, a cyano group, a nitro group, a hydroxyl group, or an amino group and having a hydrophobic residue of 8 to 32 carbon atoms, the silver halide emulsion layer or an emulsion layer adjacent to the silver halide emulsion layer containing a hydroquinone derivative having at least one substituent of at least 8 carbon atoms or a precursor capable of providing such a hydroquinone derivative by hydrolysis.
The color photographic material provides magenta dye images having good color separation and less color fog and less color stains in the highlight areas.

REFERENCES:
patent: 3127269 (1964-03-01), Greenhalgh et al.
patent: 3761274 (1973-09-01), Inoue et al.
patent: 3764337 (1973-10-01), Arai et al.

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