Abstract: A developing processing method and an image forming method are described, which comprise the steps of (a) exposing a silver halide photographic material comprising a support having thereon at least one light-sensitive silver halide emulsion layer; and (b) developing the exposed silver halide photographic material with a developer containing a developing agent, containing substantially no dihydroxybenzene developing agent, containing an auxiliary developing agent exhibiting a superadditive property, containing a quaternary onium salt compound, and having a pH value of from 9.5 to 11.5, or a developer containing a developing agent, containing substantially no dihydroxybenzene developing agent, and having a pH value of from 10 or less.

Abstract: A development processing method which comprises the steps of: imagewise exposing a silver halide photographic light-sensitive material; and developing the exposed photographic material with a developing solution, wherein the silver halide photographic material comprises a support having thereon at least one light-sensitive silver halide emulsion layer, at least one of the silver halide emulsion layer and other hydrophilic colloidal layers containing at least one hydrazine derivative; and wherein the developing solution is substantially free from a dihydroxybenzene compound, has a pH of from 9.0 to 10.5 and contains (1) at least one ascorbic acid developing agent, (2) at least one 1-phenyl-3-pyrazolidone auxiliary developing agent and (3) a compound represented by the following formula (I): ##STR1## wherein R.sub.1 to R.sub.

Abstract: A development processing method comprises: exposing a silver halide light-sensitive material comprising a support having thereon at least one light-sensitive silver halide emulsion layer; and developing said exposed light-sensitive material with a developing solution, wherein at least one of said silver halide emulsion layer and other hydrophilic colloidal layers contains at least one hydrazine derivative, and wherein said developing solution is substantially free from a dihydroxybenzene compound, has a pH of from 9.0 to 10.5, and contains (1) at least one ascorbic acid derivative developing agent, (2) at least one aminophenol auxiliary developing agent and (3) a specific mercaptopyrimidine compound. The processing method provides a high-contrast image required in the field of graphic arts using a developing solution having no problem with respect to the ecosystem and working environment, without causing silver stain even at a low replenishment rate.

Abstract: A developing processing method and an image forming method are described, which comprise the steps of (a) exposing a silver halide photographic material comprising a support having thereon at least one light-sensitive silver halide emulsion layer; and (b) developing the exposed silver halide photographic material with a developer containing a developing agent, containing substantially no dihydroxybenzene developing agent, containing an auxiliary developing agent exhibiting a superadditive property, containing a quaternary onium salt compound, and having a pH value of from 9.5 to 11.5, or a developer containing a developing agent, containing substantially no dihydroxybenzene developing agent, and having a pH value of from 10 or less.

Abstract: A development processing method comprising developing a silver halide photographic material with a developing solution, (i) wherein the silver halide photographic material comprises a support having thereon at least one light-sensitive silver halide emulsion layer and contains: (a) at least two kinds of light-sensitive silver halide emulsions which are each spectrally sensitized and have sensitivities different from each other with respect to a certain exposure wavelength; and (b) at least one hydrazine derivative in at least one of the silver halide emulsion layer and other hydrophilic colloidal layers, and (ii) wherein the developing solution is substantially free from a dihydroxybenzene compound, has a pH of from 9.0 to 10.5 and contains: (1) at least one ascorbic acid developing agent and (2) at least one auxiliary developing agent represented by the following general formula (I): ##STR1## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.

Abstract: A silver halide photographic light-sensitive material comprising a support having thereon at least one light-sensitive silver halide emulsion layer, wherein at least one of the silver halide emulsion layer and other hydrophilic colloid layers comprises fine polymer particles containing at least one hydrazine compound represented by the following general formula (NB):A--(B).sub.m (NB)wherein A represents a connecting group; m represents an integer of from 2 to 6; and B represents a group containing a hydrazine structure. The sliver halide photographic light-sensitive material exhibits an ultrahigh contrast, an excellent storage stability and an excellent processing stability and is prevented from the occurrence of processing unevenness. A method for processing the silver halide photographic light-sensitive material is also disclosed.

Abstract: A method for forming a superhigh contrast image which comprises the steps of image-exposing a silver halide photographic material having a silver halide emulsion layer provided on a support, the layer comprising silver halide grains containing 50 mol % or more of silver chloride and 1.times.10.sup.-8 to 1.times.10.sup.-6 mol of a complex of rhodium, ruthenium, rhenium, or osmium per mol of silver halide, being spectrally sensitized so as to have the maximum sensitivity in the wavelength region of 750 nm or more, and further containing a hydrazine compound; and processing with a developer which contains a developing agent of a ascorbic acid type and does not substantially contain that of a dihydroxybenzene type, the silver halide photographic material being processed with the developer which causes less harm to the environment.

Abstract: A development processing method of a silver halide black-and-white photographic material is described, which comprises the steps of (a) exposing a silver halide photographic material comprising a support having thereon at least one light-sensitive silver halide emulsion layer, and (b) developing the exposed silver halide photographic material with a developer, wherein at least one layer of the light-sensitive silver halide emulsion layer and a hydrophilic colloid layer contains at least one hydrazine derivative represented by the following formula (I); the developer contains substantially no dihydroxybenzene compound; and the developer contains (1) a developing agent selected from ascorbic acid, erythorbic acid and derivatives thereof, (2) a developing agent represented by the following formula (II), and (3) an auxiliary developing agent exhibiting a superadditive property. ##STR1## The formulae (I) and (II) are described in the specification in detail.

Abstract: A method for forming images on a silver halide light-sensitive material includes exposing a material which contains at least one light-sensitive silver halide emulsion layer and at least one hydrophilic colloidal layer, either of which includes a latex polymer having active methylene groups, and developing the exposed material with a developer which contains a dihydroxybenzene developing agent and an auxiliary developing agent showing superadditivity, wherein the following requirements are satisfied: the pH increase observed when adding 0.1 mole/l developer of NaOH to the developer.ltoreq.0.25; 9.5.ltoreq.initial pH of the developer.ltoreq.11.0; and the amount of the developer supplemented.ltoreq.225 ml/m.sup.2.

Abstract: A development processing method is described, which includes the steps of (a) exposing an ultrahigh-contrast silver halide photographic material comprising a support having thereon at least one light-sensitive silver halide emulsion layer and (b) developing the exposed silver halide photographic material with a developer while the developer is replenished with a development replenisher, wherein the developer and the development replenisher each contains a dihydroxybenzene developing agent and an auxiliary developing agent exhibiting a superadditive property to the dihydroxybenzene developing agent, and both the developer and the development replenisher have such a property that an increase of the pH is 0.25 or less when 0.1 mol of sodium hydroxide is added to 1 liter thereof; the developer has a pH from 9.5 up to but excluding 11.0; and the developer replenisher is added in an amount of 225 ml/m.sup.2 or less.

Abstract: A process for developing a silver halide photographic light-sensitive material is disclosed, comprising processing, after exposure, a silver halide photographic light-sensitive material which comprises a support having thereon at least one light-sensitive silver halide emulsion layer, the emulsion layer or other hydrophilic colloid layer containing a hydrazine-base nucleating agent having an anionic group in the vicinity of the hydrazine group or a nonionic group of forming an intramolecular hydrogen bond with the hydrogen atom of the hydrazine, or containing at least one hydrazine nucleating agent selected from the compounds represented by formula (I), and a nucleating accelerator, with a developer having a pH of from 9.0 to 11.0 and containing:(1) from 0.2 to 0.75 mol/l of a dihydroxybenzene-base developing agent,(2) from 0.001 to 0.06 mol/l of a 1-phenyl-3-pyrazolidone-base or p-aminophenol-base auxiliary developing agent,(3) from 0.3 to 1.

Abstract: A method of processing a photographic material having, in the backing layer, at least one mercapto pyrimidine compound of formula (I), with an automatic developing machine, where the amount of the replenisher of the developer per unit area of the material being processed is reduced. The processed materials have stable photographic properties and few silver stains. The mercapto pyrimidine has the following structure ##STR1## wherein R.sub.1 and R.sub.2 each represents a hydrogen atom, an alkyl group, an aryl group, an aralkyl group, a hydroxyl group, a mercapto group, a carboxyl group, a sulfo group, a phosphono group, a nitro group, a cyano group, a halogen atom, an alkoxycarbonyl group, an aryloxycarbonyl group, a carbamoyl group, a sulfamoyl group or an alkoxy group. The sum of the carbon atoms contained in R.sub.1 and R.sub.2 is from 2 to 20. R.sub.1 and R.sub.2 may be bonded to each other to form a ring structure.