Method for processing silver halide photographic materials

Details Method for processing silver halide photographic materials Method for processing silver halide photographic materials

1994-04-28

1995-01-31

Le, Hoa Van

Radiation imagery chemistry: process, composition, or product th

Post imaging processing

Developing

430439, 430445, 430446, 430481, 430487, 430488, 430490, G03C 5305

Patent

active

053858115

ABSTRACT:
A method for processing silver halide photographic material is disclosed, which has a support thereon at least one silver halide emulsion layer and at least one protective layer provided over said emulsion layer in which each of the photographic materials contains colloidal silica in at least one emulsion layer and is at most 200% in the total swelling degree of the whole hydrophilic colloid layers provided on the side of said emulsion layer, and after optical exposure said photographic materials are developed with a developer adjusted to pH 9.5-12.0 and containing at least (1) a hydroquinone developing agent in a concentration of from 0.2 to 0.75 mole/l, (2) an auxiliary developing agent of 1-phenyl-3-pyrazolidone type and/or an auxiliary developing agent of p-aminophenol type in a concentration of from 0.001 to 0.06 mole/l, (3) free sulfite ions in a concentration of from 0.3 to 1.2 mole/l, (4) a compound represented by the following formula (I), and (5) a compound represented by the following formula (II) in a concentration bearing a ratio of from 0.03 to 0.12 to the concentration of the hydroquinone developing agent: ##STR1## wherein the above substituents are defined in the specification.

REFERENCES:
patent: 3512981 (1970-05-01), Prehal et al.
patent: 3865591 (1975-02-01), Katz
patent: 4232117 (1980-11-01), Naoi et al.

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