Silver halide photographic materials and process of developing t

Details Silver halide photographic materials and process of developing t Silver halide photographic materials and process of developing t

1983-04-29

1984-06-05

Downey, Mary F.

Radiation imagery chemistry: process, composition, or product th

Post imaging processing

Developing

430265, 430266, 430267, 430438, 430446, 430567, 430569, 430602, 430605, 430608, 430611, 430613, 430949, G03C 530, G03C 106

Patent

active

044528825

ABSTRACT:
A silver halide photographic light-sensitive material and a developing process used in connection with that material are disclosed. The material is comprised of a support having thereon a silver halide emulsion layer containing a silver halide emulsion in which at least 80 mole % of the whole silver halide is composed of silver chloride, the mean grain size thereof is less than 0.4 .mu.m, and which contains more than 1.times.10.sup.-6 mole of a water-soluble rhodium salt per mole of silver at an optional period before finishing the first ripening in the production step for the silver halide emulsion. The material also contains 1.times.10.sup.-5 to 1.times.10.sup.-2 mole of polyalkylene oxide having a molecular weight of at least 600 or a derivative thereof per mole of silver. The process involves imagewise exposing the material and processing it in a developer containing 0.05 to 0.5 mole/liter of a dihydroxybenzene series developing agent, 0 to 0.05 g/liter of an auxiliary developing agent, at least 0.25 mole/liter of a free sulfite ion, at least 20 mg/liter of 5- or 6-nitroindazole, and an alkali of an amount sufficient for keeping the pH of the developer higher than 10.5. The material and processing are capable of providing good letter image quality in a short developing time.

REFERENCES:
patent: 2448060 (1948-08-01), Smith et al.
patent: 3488709 (1970-01-01), Sidebotham
patent: 4011082 (1977-03-01), Sakai et al.
patent: 4346167 (1982-08-01), Imatomi et al.

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