Silver halide photographic material
AssigneeFuji Photo Film Co., Ltd.
InventorsSumito Yamada, Taku Nakamura, Shuzo Suga, Hiroshi Kawamoto
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Abstract
A silver halide photographic material having on a support at least one silver halide emulsion layer which contains light-sensitive tabular silver halide grains, with a ratio of grain diameter to grain thickness of 5 or more and a polymeric hardener. The silver halide photographic material has both increased covering power and scratching resistance, and is suitable for high-temperature rapid development processing.
Claims17
A silver halide photographic material comprising a support having coated thereon at least one silver halide emulsion layer containing tabular silver halide grains, having a ratio of grain diameter to grain thickness of about 5 or more, and a polymeric hardener, wherein the polymeric hardener has a swelling degree range from about 2 to 7, wherein said swelling degree is determined by a process comprising incubating the photographic material at 25.degree. for 10 days at 65 percent relative humidity, measuring layer thickness (d), immersing said photographic material in developing solution A at 35.degree. C. for 30 seconds, measuring layer thickness (d to +.DELTA.d) and determining the percent change in layer thickness (d to .DELTA.d) as compared to the layer thickness (d), wherein the developing solution A comprises:
- 1-Phenyl-3-pyrazolidone (1.5 g), hydroquinone (30 g), 5-Nitroindazole (0.25 g), potassium bromide (3.7 g), anhydrous sodium sulfate (50 g), potassium hydroxide (20 g), boric acid (10 g), 25% aqueous solution of glutaraldehyde (20 ml) and water to make 1 l (pH is adjusted to 10.20).
Dependencies are inferred from the claim text.