Radiation imagery chemistry: process – composition – or product th – Radiation sensitive product – Silver compound sensitizer containing
Patent
1997-06-27
2000-03-28
Le, Hoa Van
Radiation imagery chemistry: process, composition, or product th
Radiation sensitive product
Silver compound sensitizer containing
430363, 430534, 430604, G03C 109
Patent
active
060430206
ABSTRACT:
A silver halide color photographic material is disclosed which comprises a support having provided thereon at least one silver halide emulsion layer containing a yellow dye-forming coupler, at least one silver halide emulsion layer containing a magenta dye-forming coupler, and at least one silver halide emulsion layer containing a cyan-dye forming coupler, wherein at least one of said at least one emulsion layers (i) contains silver chloride or silver chlorobromide emulsion grains having a silver chloride content of 95 mol % or more and substantially free of silver iodide, and (ii) has a ratio of point gamma I to point gamma II of 0.7 to 1.3, wherein when points giving densities of 1.0 and 1.5 on a characteristic curve obtained by an exposure time of 10.sup.-4 second are joined by a straight line, point gamma I is a point gamma on the characteristic curve, at a density which is 1.5 or more and which satisfies the condition where the value of logE on the characteristic curve is larger by 0.05 than that on the straight line at the same density, and wherein when points giving densities of 1.0 and 1.5 on a characteristic curve obtained by an exposure time of 0.1 second are joined by a straight line, point gamma II is a point gamma on the characteristic curve, at a density which is 1.5 or more and which satisfies the condition where the value of logE on the characteristic curve is larger by 0.05 than that on the straight line at the same density.
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patent: 5593820 (1997-01-01), Sluirai
patent: 5672468 (1997-09-01), Okazaki
Fuji Photo Film Co. , Ltd.
Le Hoa Van
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