Radiation imagery chemistry: process – composition – or product th – Radiation sensitive product – Two or more radiation-sensitive layers containing other than...
Patent
1986-06-17
1988-10-25
Shah, Mukund J.
Radiation imagery chemistry: process, composition, or product th
Radiation sensitive product
Two or more radiation-sensitive layers containing other than...
430506, 430567, 430569, 430583, 430591, G03C 146, G03C 102, G03C 106
Patent
active
047803991
ABSTRACT:
A color photographic material having at least one red-sensitive silver halide emulsion layer, at least one green-sensitive silver halide emulsion layer and at least one blue-sensitive silver halide emulsion layer, characterized in that a blue-sensitive silver halide emulsion which is used in at least one of the blue-sensitive silver halide emulsion layer or layers contains silver halide grains of an average size of 0.4.mu. or less and at least one sensitizing dye represented by formula I or II: ##STR1## wherein Z.sup.1, Z.sup.2 and Z.sup.3 each represent an atomic group necessary for completing an oxazole, benzoxazole, naphthoxazole, thiazole, benzothiazole, naphthothiazole, imidazole, benzimidazole or naphthoimidazole ring; R.sup.1, R.sup.2, R.sup.3 and R.sup.4 each represent a substituted or unsubstituted alkyl or aryl group; (X.sup.-) represents an acid anion; and n represents zero or 1.
The photographic material is excellent in sensitivity, graininess, sharpness and storage stability, and gives an excellent color reproduction without color mixing.
REFERENCES:
patent: 3706566 (1972-12-01), Shiba et al.
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patent: 4250244 (1981-02-01), Borror et al.
patent: 4332889 (1982-06-01), Siga et al.
patent: 4517284 (1985-05-01), Kagawa et al.
patent: 4518689 (1985-05-01), Noguchi et al.
patent: 4609621 (1986-09-01), Sugimoto et al.
Fuji Photo Film Co. , Ltd.
Shah Mukund J.
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