Radiation imagery chemistry: process – composition – or product th – Radiation sensitive product – Two or more radiation-sensitive layers containing other than...
Patent
1992-11-30
1994-02-15
Wright, Lee C.
Radiation imagery chemistry: process, composition, or product th
Radiation sensitive product
Two or more radiation-sensitive layers containing other than...
430507, 430512, 430546, 430557, 430531, G03C 138, G03C 736, G03C 7388, G03C 1815
Patent
active
052866165
ABSTRACT:
A silver halide color photographic material comprising a reflective support having provided therein a blue-sensitive silver halide emulsion layer, a green-sensitive silver halide emulsion layer, a red-sensitive silver halide emulsion layer and plural light-insensitive layers, wherein the blue-sensitive silver halide emulsion layer contains a monodisperse silver halide emulsion and a yellow coupler represented by formula (I) defined below, and at least one light-insensitive layer which is positioned farther from the reflective support than the blue-sensitive silver halide emulsion layer is a hydrophilic colloid layer containing at least one hydrophobic compound represented by formula (II) defined below, and a relative refractive index of an organic phase containing the hydrophobic compound with the exception of a volatile organic solvent and an amphipathic solute to a hydrophilic polymer thin film which forms the light-insensitive layer is in a range from 0.9875 to 1.0125; wherein said yellow coupler is represented by formula (I) ##STR1## wherein R.sub.1 represents a halogen atom or an alkoxy group; R.sub.2 represents a hydrogen atom, a halogen atom, or an alkoxy group; A represents --NHCOR.sub.3, --NHSO.sub.2 R.sub.3, --SO.sub.2 NHR.sub.3, --COOR.sub.3 or ##STR2## each represents an alkyl group; and Y represents a group which is capable of being released upon a coupling reaction with an oxidation product of a developing agent and is connected to the coupling position through an oxygen atom or a nitrogen atom; and wherein said hydrophobic compound is represented by formula (II) ##STR3## wherein R.sub.5, R.sub.6, R.sub.7, R.sub.8 and R.sub.9 each represents a hydrogen atom, a halogen atom, a nitro group, a hydroxy group, an alkyl group, an alkenyl group, an aryl group, an alkoxy group, an acyloxy group, an aryloxy group, an alkylthio group, an arylthio group, a mono- or di-alkylamino group, an acylamino group or a 5-membered or 6-membered heterocyclic group containing an oxygen atom or a nitrogen atom; or R.sub.8 and R.sub.9 are connected together to form a 5-membered or 6-membered aromatic carbon ring.
The silver halide color photographic material has sufficiently high color forming properties, particularly in the blue-sensitive emulsion layer thereof, is suitable for a rapid processing, and is excellent in processing stability.
REFERENCES:
patent: 3936303 (1976-02-01), Shiba et al.
patent: 4540656 (1985-09-01), Nishizima et al.
patent: 4587208 (1986-05-01), Kadowaki et al.
patent: 4668611 (1987-05-01), Nakamura
patent: 4745047 (1988-05-01), Asami et al.
patent: 4774168 (1988-09-01), Ogawa et al.
patent: 4783394 (1988-11-01), Hirose et al.
patent: 4791050 (1988-12-01), Ogawa et al.
patent: 4818673 (1989-04-01), Ueda et al.
patent: 4830956 (1989-05-01), Waki
Mori Fuyuhiko
Sakai Nobuo
Fuji Photo Film Co. , Ltd.
Wright Lee C.
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