Process for producing a high contrast photographic image
AssigneeFuji Photo Film Co., Ltd.
InventorsEiichi Okutsu, Yoshitaka Akimura, Shunji Takada, Hiroyuki Mifune
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AssigneeFuji Photo Film Co., Ltd.
InventorsEiichi Okutsu, Yoshitaka Akimura, Shunji Takada, Hiroyuki Mifune
Estimating the term…
A process for producing a high contrast photographic image comprising developing an image-wise exposed silver halide photographic light-sensitive material comprising a support having thereon at least one silver halide emulsion layer with a developer containing (a) free sulfite ion in a concentration of at least 0.18 mol/l and (b) as substantially the only developing agent a dihydroxybenzene in the presence of (i) at least one compound represented by the following general formula (I); R.sup.1 NHNHCOR.sup.2 (I) wherein R.sup.1 represents an aryl group; R.sup.2 represents a hydrogen atom, a phenyl group or an unsubstituted alkyl group having 1 to 3 carbon atoms and (ii) at least one polyalkylene oxide having a molecular weight of at least 600 or a derivative thereof.
A process for producing a high contrast negative photographic image comprising developing an image-wise exposed silver halide photographic light-sensitive material with a developer containing (a) free sulfite ion in a concentration of at least 0.18 mol/l and (b) a dihydroxybenzene as the sole developing agent in the presence of at least one polyalkylene oxide having a molecular weight of at least 600 or a derivative thereof wherein said polyalkylene oxide is contained in said light-sensitive material or in said developer and wherein said silver halide photographic light-sensitive material comprises a support having thereon at least one silver halide emulsion layer and wherein the light-sensitive material or said developer contains at least one compound represented by the following general formula (I):
Dependencies are inferred from the claim text.