Method of processing silver halide photographic light-sensitive material

Description

FIELD OF THE INVENTION

[0001] The invention relates to a method of processing a high contrast silver halide photographic light-sensitive material, and particularly to a method of processing a high contrast silver halide photographic light-sensitive material with less replenishing.

BACKGROUND OF THE INVENTION

[0002] The photomechanical film-making process comprises a process of converting a half-tone image to a dot image. In this process the technique according to an infectious development has been used for reproduction of a high contrast image. An image of high contrast and high resolution can be obtained by processing a lith type silver halide photographic light-sensitive material with an alkaline hydroquinone developer having a low concentration of a sulfite ion, so-called, a lith type infectious developer.

[0003] However, such a lith type infectious developer has problems that it is likely to subject to an air oxidation and its extremely poor preservability makes it difficult to keep constant a quality of continuously processed photographic light-sensitive materials.

[0004] As a method of obtaining a high contrast image rapidly without using such a developer, there is proposed a method of developing a silver halide photographic light-sensitive material comprising a tetrazolium compound or a hydrazine derivative, so-called, a contrast increasing agent, with an alkaline developer. According to this method, the preservability of the developer is excellent, rapid processing is possible, and an ultra high contrast image can be easily obtained.

[0005] However, in the method of processing a silver halide photographic light-sensitive material comprising a contrast increasing agent, the preservability of the developer is improved, but the developer has problems that sensitivity variation is increased and image sharpness is deteriorated on processing the material with less replenishment. The resolution of the problems has been required.

[0006] Ep-A-0 554 000 provides a processing method of a silver halide photographic material which is capable of forming arm image of improved sharpness wherein the method is improved with respect to its environmental problem at the time of processing as well as to its waste developer disposal problem. The developer used in the method contains a carbanate salt and cyclodextrin. The method however does not comprise a replenishment step and the document does not refer to or suggest any replenishment of the developer.

[0007] The demand for less replenishing of developer has been recently increased in view of resources saving and environmental protection. Under such a background, a method capable of stably processing a silver halide photographic light-sensitive material even with less replenishment of developer.

SUMMARY OF THE INVENTION

[0008] An object of the invention is to provide a method of processing a silver halide photographic light-sensitive material with less replenishment wherein photographic properties thereof are less deteriorated.

DETAILED DESCRIPTION OF THE INVENTION

[0009] The above object of the invention can be attained by a method of processing a silver halide photographic light-sensitive material comprising a support and provided thereon, a silver halide emulsion layer comprising silver halide grains having not less than 90 mol % chloride, the emulsion layer or a hydrophilic colloid layer adjacent to the emulsion layer containing a tetrazolium compound or a hydrazine derivative, and replenisher for developer being supplied to the developer in an amount of not more than 200 ml per m² of the material, wherein the developer contains a carbonate salt in an amount of not less than 0.2 mol/litre.

[0010] It is preferable that the developer contains not less than 1.6×10^-2 mol/litre of boric acid or a borate or has not less than 0.2 of a ratio of a potassium ion to a sodium ion.

[0011] The hydrophilic colloid layer of the invention which is adjacent to the silver halide emulsion layer refers to an intermediate layer, an antihalation layer or a protective layer, each containing no silver halide grains, or another emulsion layer containing silver halide grains.

[0012] The invention will be concretely explained below.

[0013] In the invention the hydrazine derivative is contained in at least one hydrophilic colloid layer on the silver halide emulsion layer side, and may be contained in the different two layers. It is especially preferable that it is contained in the silver halide emulsion layer and/or at least one hydrophilic colloid layer adjacent to the emulsion layer.

[0014] Next, the hydrazine derivative used in the invention is represented by the following Formula [H].

[0015] The Formula [H] will be detailed below.

[0016] A represents a substituted or unsubstituted aliphatic, aryl or heterocyclic group.

[0017] The aliphatic group represented by A is preferably a group having 1 to 30 carbon atoms, and more preferably a straight-chained, branched or cyclic alkyl group having 1 to 20 carbon atoms. The examples thereof include a methyl, ethyl, t-butyl, octyl, cyclohexyl and benzyl group, each of which may have a substituent such as an aryl, alkoxy, aryloxy, alkylthio, arylthio, sulfoxy, sulfonamide, acylamino, or ureido group.

[0018] The aryl group represented by A in Formula [H] is preferably a single or condensed ring group, for example, a benzene ring group or a naphthalene ring group.

[0019] The heterocyclic group represented by A in Formula [H] is preferably a single or condensed ring group containing a hetercycle having one hetero atom selected from a nitrogen, sulfur and oxygen atom, such as a pyrrolidine ring, an imidazole ring, a tetrahydrofuran ring, a morpholine ring, a pyridine ring, a pyrimidine ring, a quinoline ring, a thiazole ring, a benzothiazole ring, a thiophene ring or a furan ring.

[0020] The group represented by A preferably represents an aryl group or a heterocyclic group. The aryl or heterocyclic group may have a substituent. The examples of the substituent include an alkyl group (preferably having 1 to 20 carbon atoms), an aralkyl group (preferably a single or condensed ring group having an alkyl group of 1 to 3 carbon atoms), an alkoxy group (preferably having an alkyl group of 1 to 20 carbon atoms), a substituted amino group (preferably having an alkyl group or alkylidene group of 1 to 20 carbon atoms), an acylamino group (preferably having 1 to 40 carbon atoms), a sulfonamide group (preferably having 1 to 40 carbon atoms), a ureido group (preferably having 1 to 40 carbon atoms), a hydrazinocarbonylamino group (preferably having 1 to 40 carbon atoms), a hydroxy group or a phosphoamide group (preferably having 1 to 40 carbon atoms).

[0021] The group represented by A preferably has at least one of a non-diffusible group and a group for promoting silver halide adsorption. The non-diffusible group is preferably a ballast group which is conventionally used in immobile photographic additives such as couplers, and the ballast group includes an alkyl, alkenyl, alkinyl or alkoxy group having not less than 8 carbon atoms or a phenyl, phenoxy or alkylphenoxy group, which is relatively inactive to photographic properties. The group for promoting silver halide adsorption includes a thiourea, thiourethane, mercapto, thioether, thion, heterocyclic, thioamidoheterocyclic or mercaptoheterocyclic group or an adsorption group described in column 12, line 19 to column 18, line 7 of Japanese Patent O.P.I. Publication No. 64-90439/1989.

[0022] The example of B includes an acyl group (for example, formyl, acetyl, propionyl, trifluoroacetyl, methoxyacetyl, phenoxyacetyl, methylthioacetyl, chloroacetyl, benzoyl, 2-hydroxymethylbenzoyl, 4-chlorobenzoyl), an alkylsulfonyl group (for example, methanesulfonyl, chloroethanesulfonyl), an arylsulfonyl group (for example, benzenesulfonyl), an alkylsulfinyl group (for example, methanesulfinyl), an arylsulfinyl group (for example, benzenesulfinyl), a carbamoyl group (for example, methylcarbamoyl, phenylcarbamoyl), an alkoxycarbonyl group (for example, methoxycarbonyl, methoxyethoxycarbonyl), an aryloxycarbonyl group (for example, phenyloxycarbonyl), a sulfamoyl group (for example, dimethylsulfamoyl), a sulfinamoyl group (for example, methylsulfinamoyl), an alkoxysulfonyl group (for example, methoxysulfonyl), a thioacyl group (for example, methylthiocarbonyl), a thiocarbamoyl group (for example, methylthiocarbamoyl), an oxalyl group or a heterocyclic group (for example, pyridinyl, pyridinium).

[0023] B in Formula [H] may form -N=C(R₉) (R₁₀) together with A₂ and a nitrogen atom, wherein R₉ represents a substituted or unsubstituted alkyl, aryl, or heterocyclic group, and R₁₀ represents a hydrogen atom or a substituted or unsubstituted alkyl, aryl or heterocyclic group.

[0024] B is preferably an acyl group.

[0025] A₁ and A₂ represent both hydrogen atoms or one of A₁ and A₂ represents a hydrogen atom and the other represents an acyl group (acetyl, trifluoroacetyl, benzoyl), a sulfonyl group (methanesulfonyl, toluenesulfonyl) or an oxalyl group (ethoxalyl).

[0026] Of compounds by represented by Formula [H] a compound represented by the following Formula [H'] is preferable.

wherein C represents the same as A in Formula [H] and D represents

or -OR₈
wherein R₆ and R₇ independently represent a hydrogen atom, a substituted or unsubstituted alkyl, alkenyl, alkinyl, aryl, or heterocyclic group, a substituted or unsubstituted alkoxy, alkenyloxy, alkinyloxy, aryloxy or heterocyclicoxy group, an amino group or a hydroxy group, provided that R₆ and R₇ may form a ring together with a nitrogen atom, R₈ represents a hydrogen atom or a substituted or unsubstituted alkyl, alkenyl, alkinyl, aryl or heterocyclic group.

[0027] Of the hydrazine compounds in the invention, the compound represented by the following Formula [Ha] is especially preferable:

wherein R₁₁ represents a substituted or unsubstituted aryl or heterocyclic group, R₁₂ represents

group and -OR₁₅ group wherein R₁₃ and R₁₄ independently represent a hydrogen atom, a substituted or unsubstituted alkyl, alkenyl, alkinyl, aryl or heterocyclic group, a substituted or unsubstituted alkoxy, alkenyloxy, alkinyloxy, aryloxy or heterocyclicoxy group, an amino group or a hydroxy group, provided that R₁₃ and R₁₄ may form a ring together with a nitrogen atom, R₁₅ represents a hydrogen atom or a substituted or unsubstituted alkyl, alkenyl, alkinyl, aryl or heterocyclic group, and A₃ and A₄ are the same as A₁ and A₂ of Formula [H], respectively.

[0028] The Formula [Ha] will be described in detail below.

[0029] The aryl group represented by R₁₁ is preferably a single or condensed ring group, for example, a benzene ring group or a naphthalene ring group.

[0030] The heterocyclic group represented by R₁₁ is preferably a single or condensed ring group comprising a 5- or 6-membered heterocycle having one hetero atom selected from a nitrogen, sulfur and oxygen atom, such as a pyridine ring, a quinoline ring, a pyrimidine ring, a thiophene ring, a furan ring, a thiazole ring or a benzothiazole ring.

[0031] R₁₁ is preferably a substituted or unsubstituted aryl group. The substituent is the same as that of A in Formula [H]. R₁₁ is preferably a group having at least one sulfo group when a developer having pH of not more than 11.2 is used for high contrast.

[0032] A₃ and A₄ are the same as A₁ and A₂ of Formula [H], respectively, and are preferably simultaneously hydrogen atoms.

[0033] R₁₂ represents

group and -OR₁₅ group
wherein R₁₃ and R₁₄ independently represent a hydrogen atom, a substituted or unsubstituted alkyl group (methyl, ethyl or benzyl), a substituted or unsubstituted alkenyl group (allyl, butenyl), a substituted or unsubstituted alkinyl group (propagyl, butinyl), a substituted or unsubstituted aryl group (phenyl, naphthyl), a substituted or unsubstituted heterocyclic group (2,2,6,6-tetramethylpiperidinyl, N-benzylpiperidinyl, benzylpiperidinyl, quinolidinyl, N,N'-diethylpyrazolidinyl, pyridyl), a substituted or unsubstituted amino group (amino, methylamino, dimethylamino, dibenzylamino), a hydroxy group, a substituted or unsubstituted alkoxy group (methoxy, ethoxy), a substituted or unsubstituted alkenyloxy group (allyloxy), a substituted or unsubstituted alkinyloxy group (propagyloxy), a substituted or unsubstituted aryloxy group (phenoxy) or a substituted or unsubstituted heterocyclic group (pyridyl), provided that R₁₃ and R₁₄ may combine each other with a nitrogen atom to form a ring (piperidine, morpholine), and R₁₅ represents a hydrogen atom, a substituted or unsubstituted alkyl group (methyl, ethyl, methoxyethyl or hydroxyethyl), a substituted or unsubstituted alkenyl group (allyl, butenyl), a substituted or unsubstituted alkinyl group (propagyl, butinyl), an aryl group phenyl, naphthyl), or a substituted or unsubstituted heterocyclic group (2,2,6,6-tetramethylpiperidinyl, N-methylpiperidinyl, pyridyl).

[0034] Of compounds by represented by Formula [H-a] a compound represented by the following Formula [H-a'] is preferable.

wherein E represents the same as A in Formula [H] and F represents

or -OR₁₅
wherein R₁₃ and R₁₄ independently represent a hydrogen atom, a substituted or unsubstituted alkyl, alkenyl, alkinyl, aryl, or heterocyclic group, a substituted or unsubstituted alkoxy, alkenyloxy, alkinyloxy, aryloxy or heterocyclicoxy group, an amino group or a hydroxy group, provided that R₁₃ and R₁₄ may form a ring together with a nitrogen atom, R₁₅ represents a hydrogen atom or a substituted or unsubstituted alkyl, alkenyl, alkinyl, aryl or heterocyclic group.

[0035] The Exemplified compounds represented by Formulas [H] and [Ha] will be shown below, but the invention is not limited thereto.

[0036] The synthetic method of a compound represented by Formula [H] is referred to in Japanese Patent O.P.I. Publication Nos. 62-180361, 62-178246, 63-234245, 63-234246, 64-90439, 2-37, 2-841, 2-947, 2-120736, 2-230233 and 3-125134, U.S.Patent Nos. 4,686,167, 4,988,604 and 4,994,365, European Patent Nos. 253,665 and 333,435.

[0037] The content of the compound used in the invention represented by Formula [H] is preferably 5 × 10^-7 to 5 × 10^-1 mol/mol of silver, and more preferably 5 × 10^-6 to 5 × 10^-2 mol/mol of silver.

[0038] In the invention the compound represented by Formula [H] is contained in the silver halide emulsion layer or its adjacent hydrophilic colloid layers of a photographic light sensitive material.

[0039] The silver halide photographic light-sensitive material used in the invention preferably contains the following nuclear promoting agent to promote nuclear development.

[0040] The nuclear promoting agent includes a compound represented by the following Formula [Na] or [Nb]:

[0041] In Formula [Na] R₁, R₂ and R₃ independently represent a hydrogen atom, an alkyl group, a substituted alkyl group, an alkenyl group, a substituted alkenyl group, an alkinyl group, a substituted alkinyl group, an aryl group or a substituted aryl group, provided that R₁, R₂, and R₃ are not simultaneously hydrogen atoms and R₁, R₂ and R₃ may form a ring together. The preferable agent is an aliphatic tertiary amines. These compounds preferably have in the molecules an anti-diffusible group or a silver halide adsorption group. The compounds having anti-diffusible property have preferably a molecular weight not less than 100, and more preferably a molecular weight not less than 300. The preferable adsorption group include a heterocyclic, mercapto, thioether, thion or thiourea group.

[0042] The examples thereof will be shown below.

[0043] In Formula [Nb] Ar represents a substituted or unsubstituted aryl or heterocyclic group, R represents a hydrogen atom or an alkyl group, an alkenyl group, an alkinyl group or an aryl group , each of which may have a substituent. These compounds preferably have in the molecules an anti-diffusible group or a silver halide adsorption group. The compounds having anti-diffusible property have preferably a molecular weight not less than 120, and more preferably a molecular weight not less than 300.

[0044] The examples thereof will be shown below.

[0045] The compound represented by the following Formula [Na'] is preferable.

[0046] In Formula [Na'] R₁, R₂, R₃ and R₄ independently represent a hydrogen atom, an alkyl group, a substituted alkyl group, an alkenyl group, a substituted alkenyl group, an alkinyl group, a substituted alkinyl group, an aryl group, a substituted aryl group or a saturated or unsaturated heterocyclic group, provided that R₁, R₂, R₃ and R₄ may form a ring together, R₁ and R₂ are not simultaneously hydrogen atoms, and R₃ and R₄ are not simultaneously hydrogen atoms. The preferable agent is an aliphatic tertiary amine.

[0047] Of these nuclear promoting agents, those having at least one -(CH₂CH₂O)- group are more preferable.

[0048] The tetrazolium compound used in the light-sensitive material used in the invention is generally represented by the following formula (T).

[0049] In the embodiment of the invention, the substituents R₁, R₂ and R₃ on the phenyl group of the triphenyltetrazolium compound represented by Formula (T) preferably represent a hydrogen atom or a group having a negative or positive Hammett's sigma value (σP), which is a measure of the electron withdrawing property. Particularly preferred are those having a negative Hammett's sigma value.

[0050] Details of Hammett's sigma value in phenyl substitution can be seen in various literatures, for example, in C. Hansch's report in Journal of Medical Chemistry, Vol. 20, p. 304 (1977). Those having a particularly preferred negative sigma value include, for example, methyl (σP: -0.17, a value hereinafter given in parentheses is σP), ethyl (-0.15), cyclopropyl (-0.21), n-propyl (-0.13), iso-propyl (-0.15), cyclobutyl (-0.15), n-butyl (-0.18), iso-butyl (-0.20), n-pentyl (-0.15), cyclohexyl (-0.22), amino (-0.66), acethylamino (-0.15), hydroxyl (-0.37), methoxy (-0.27), ethoxy (-0.24), propoxy (-0.25), buthoxy (-0.32) and pentoxy (-0.34), each of which is useful as a substituent for the compound of the invention represented by Formula (T).

[0051] n represents 1 or 2, and X^- represents an anion.

[0052] The anion represented by X^- includes, for example, halogen ions such as a chloride ion, a bromide ion, or a iodide ion; acid residues of inorganic acids such as nitric acid, sulfuric acid, perchloric acid; acid residues of organic acids such as sulfonic acids, carboxylic acids, and anions of anionic surfactants, for example, lower alkylbenzene sulfonic acid anions such as a p-toluenesulfonic acid anion; higher alkylbenzene sulfonic acid anions such as a p-dodecylbenzene sulfonic acid anion; higher alkyl sulfate anions such as a lauryl sulfate anion; boron type anions such as a tetraphenyl boron; dialkyl sulfosuccinate anions such as a di-2-ethylhexyl sulfosuccinate anion; polyether alcohol sulfate anions such as a cetyl polyethenoxy sulfate anion; higher fatty acid anions such as a stearic acid anion; and polymers having acid residues such as a polyacrylic acid anion.

[0053] Typical examples of the compound represented by Formula (T) are illustrated below, but suitable tetrazolium compounds are by no means limited to them.

Compound No.	R1	R2	R3	Xn-
T-1	H	H	p-CH3	Cl-
T-2	p-CH3	H	p-CH3	Cl-
T-3	p-CH3	p-CH3	p-CH3	Cl-
T-4	H	p-CH3	p-CH3	Cl-
T-5	p-OCH3	p-CH3	p-CH3	Cl-
T-6	p-OCH3	H	p-CH3	Cl-
T-7	p-OCH3	H	p-OCH3	Cl-
T-8	m-C2H5	H	m-C2H5	Cl-
T-9	p-C2H5	p-C2H5	p-C2H5	Cl-
T-10	p-C3H7	H	p-C3H7	Cl-
T-11	p-isoC3H7	H	p-isoC3H7	Cl-
T-12	p-OC2H5	H	p-OC2H5	Cl-
T-13	p-OCH3	H	p-isoC3H7	Cl-
T-14	H	H	p-nC12H25	Cl-
T-15	p-nC12H25	H	p-C12H25	Cl-
T-16	H	p-NH2	H	Cl-
T-17	p-NH2	H	H	Cl-
T-18	p-CH3	H	p-CH3	ClO4-

[0054] The above tetrazolium compounds can be easily synthesized, for example, by the method described in Chemical Reviews, Vol. 55, pp. 335-483.

[0055] The tetrazolium compounds represented by formula (T) may be used singly or in combination of two or more kinds at a proper ratio.

[0056] The silver halide emulsion used in the light-sensitive material in the invention may be obtained by any of an acidic, neutral and ammonium method, and comprises grains having a particle size of preferably 0.2 to 0.5µm. In the silver halide grains of the silver halide emulsion in the invention water soluble rhodium or iridium salts are added to the emulsion to contain the salts inside or on the surface of the grains. The adding amount of the salts is preferably 10^-6 to 10^-9 mol of mol of silver.

[0057] The silver halide grains are silver chloride or silver bromochloride or silver iodobromochloride containing not less than 90 mol% of silver chloride. The grains may be grains having a uniform halide composition or core/shell grains where the halide composition inside the grains is different from that of the outer layer of the grains. The grains may be ones forming a latent image mainly on the surface or ones a latent image forming mainly inside the grains.

[0058] The silver halide grains in any form can be used in the invention. One preferable example is cubic grains having {100} face as a crystal surface. The octahedral, tetradecahedral or dodecahedral grains are prepared according to a method described in U.S. Patent Nos. 4,183,756 and 4,225,666, Japanese Patent O.P.I. Publication No. 55-26589, Japanese Patent Publication No. 55-42737 or J. Photgr. Sci., 21, 39(1973) and can be used. Grains having a twin plane may also be used.

[0059] The silver halide grains in the invention may be in a single form or in a mixture of various forms. The silver halide emulsion in the invention may have any particle size distribution. The silver halide emulsion having a broad particle size distribution (polydisperse emulsion) or a narrow particle size distribution (monodisperse emulsion) may be used singly or in admixture of several kinds of the emulsions. The polydisperse emulsion and monodisperse emulsion may be used in combination. Two or more kinds of silver halide emulsions prepared separately may be used in combination. The monodisperse emulsion is preferably used in the invention. The monodisperse silver halide grains in the monodisperse emulsion are grains comprising grains having a particle size falling within ±20% of a deviation from an average particle size, r in an amount preferably not less than 60 % by weight, more preferably not less than 70 % by weight, and most preferably not less than 80 % by weight based on the total silver halide grains.

[0060] Herein the average particle size, r is defined to be particle size r_i when n_i × r_i³ is maximum, wherein n_i represents frequency of grains having a particle size of r_i.

[0061] (The number of significant figures is three from the maximum digit, and the calculated figure is rounded off to the three digit)

[0062] The particle size referred to herein is the diameter when silver halide grains are spherical, and the diameter of a circle to which the area of the projected image of the grains is converted, when in a shape other than a sphere. The particle size can be obtained by measuring the grain diameter or an area of the projected image of the grains on a print which were photographed magnified 10,000 to 50,000 times by an electonmicroscope (the number of grains should be not less than 1000 selected randomly).

[0063] The high monodisperse emulsion used in the invention has a monodisperse degree of preferably not more than 20, and a monodisperse degree of more preferably not more than 15. Herein the monodisperse degree is defined by the following equation:

[0064] Herein the average particle size and standard deviation of the particle size can be obtained by r_i as defined above. The monodisperse emulsion can be obtained by a method described in Japanese Patent O.P.I. Publication Nos. 54-48521, 58-49938 and 60-122935.

[0065] The light sensitive silver halide emulsion used in the invention can be a chemically unsensitized emulsion, which is called a primitive emulsion, but is usually chemical-sensitized. As the chemical sensitization method is used a method described in the aforementioned literature by Glafkides or Zelikman, or "Die Grundlagen der Photographischen Prozesse mit Silberhalogeniden" edited by H. Frieser, Akademische Verlagsgesellschaft (1968). There is a sulfur sensitization method using a sulfur-containing compound or active gelatin capable of reacting with silver ion, a reduction sensitization method using a reducing agent or a method using gold or other noble metals. The sulfur sensitizer includes a thiosulfate, a thiourea, a thiazole, a rhodanine, and so forth. The example thereof is described in U.S. Patent Nos. 1,574,944, 2,410,689, 2,278,947, 2,728,668 and 3,656,955. The reduction sensitizer includes a stannous salt, amines, a hydrazine derivative, formamidinesulfinic acid, and a silane compound. The example thereof is described in U.S. Patent Nos. 2,487,850, 2,419,974, 2,518,698, 2,983,609, 2,983,610 and 3,694,637. The noble metal sensitizer includes a gold complex or a complex of a metal belonging to the VII Group of the Periodic Table such as platinum, iridium or palladium and examples thereof is described in U.S. Patent Nos. 2,399,083 and 2,448,060 or British Patent No. 618,061. The pH, pAg or temperature during the chemical sensitization is not specifically limited, but the pH is 4-9, and preferably 5-8, the pAg is 5-11, and preferably 7-9, and the temperature is 40-90°C, and preferably 45-75°C. The photographic emulsion used in the invention is subjected to the above sulfur or gold-sulfur sensitization and further to reducing sensitization using a reducing agent or noble metal sensitization. As the light sensitive emulsion, the above emulsion may be used singly or two kinds or more kinds of emulsions in combination. According to the invention, after the completion of the chemical sensitization, various stabilizing agents such as 4-hydroxy-6-methyl-1,3,3a,7-tetrazaindene, 5-mercapto-1-phenyltetrazole and 2-mercapto-benzothiazole are used. Silver halide solvent like thioethers, mercapto group-containing compounds or crystal habit controlling agents like sensitizing dyes may be optionally used.

[0066] The unnecessary soluble salts in the emulsion in the invention may be removed after completion of silver halide growth, and the emulsion may contain the soluble salts. The salts can be removed according to a method described in Research Disclosure 17643.

[0067] The various additives can be added to the above photographic emulsion in the invention in order to prevent lowering of sensitivity and occurrence of fog in the process of its manufacturing or during its storing or processing. That is, to the emulsion can be added, compounds well known as stabilizers, azoles such as benzothiazolium salts, nitroindazoles, triazoles, benzotriazoles or benzimidazoles (especially, ones having a nitro or halogen group), mercapto heterocyclic compounds such as mercaptothiazoles, mercaptobenzimidazoles, mercaptotetrazoles (especially, 1-phenyl-5-mercaptotetrazole) or mercaptopyridines, the above heterocyclic compounds or mercapto compounds having a water solubilizing group such as a carboxyl group or a sulfo group, thioketone compounds such as oxazolinethions, azaindenes such as tetraazaindenes (especially, 4-hydroxy-(1,3,3a,7)-tetraazaindenes), benzenethiosulfonic acids or benzenesulfinic acids.

[0068] The example used is described in literature by K. Mees, The Theory of the Photographic Process, the 3rd Edition (1966). These further detailed examples or the use thereof are referred to in U.S. Patent Nos. 3,954,474, 3,982,947 and 3,021,248 and Japanese Patent Publication No. 52-28660.

[0069] The silver halide photographic light-sensitive material in the invention can contain in its photographic structural layer alkylacrylate latexes described in U.S. Patent Nos. 3,411,911 and 3,411,912 and Japanese Patent Publication No. 45-5331.

[0070] The silver halide photographic light-sensitive material in the invention may contain the following various additives. The thickener or plasticizer includes a compound such as styrene-sodium maleate copolymer or dextrane sulfate described in U.S. Patent No. 2,960,404, Japanese Patent Publication No.43-4939, German Patent Publication No. 1,904,604, Japanese Patent O.P.I. Publication No. 48-63715, Belgium Patent No. 762,833, U.S. Patent No. 3,767,410, and Belgium Patent No. 588,143. The hardener includes aldehydes, epoxy compounds, ethyleneimines, active halogenides, vinylsulfones, isocyanates, sulfonic acid esters, carbodiimides, mucochloric acid or acyloyls. The UV absorbent includes a compound described in U.S. Patent No. 3,253,921 and British Patent No. 1,309,349 such as 2-(2'-hydroxy-5-tert-butylphenyl)benzotriazole, 2-(2'-hydroxy-3',5'di-tert-butylphenyl)benzotriazole, 2-(2-hydroxy-3'-tert-butyl-5'-butylphenyl)-5-chlorobenzotriazole or 2-(2'-hydroxy-3',5'-di-tert-butylphenyl)-5-chlorobenzotriazole. The surfactants, which are used as an agent improving permeability of an auxiliary coating agent, an emulsifier or processing solutions, an anti-forming agent or various agents for controlling physical properties of light sensitive materials, include an anionic, cationic or nonionic surfactant described in British Patent Nos. 548,532 and 1,216,389, U.S. Patent No. 2,026,202 and 3,514,293, Japanese Patent Publication Nos. 44-26580, 43-17922, 43-17926, 43-3166 and 48-20785, French Patent No. 202,588, Belgium Patent No. 773,459 and Japanese Patent O.P.I. Publication No. 48-101118. Of these surfactants, the anionic surfactants having a sulfo group such as sulfosuccinates or alkylbenzenesulfonates are preferable. The anti-static agent includes compounds described in Japanese Patent Publication No. 46-24159, Japanese Patent O.P.I. Publication No. 48-89979, U.S.Patent Nos. 2,882,157 and 2,972,535, Japanese Patent O.P.I. Publication Nos.48-20785, 48-43130 and 48-90391, Japanese Patent Publication Nos. 46-24159, 46-39312 and 48-43809 and Japanese Patent O.P.I. Publication No. 47-33627.

[0071] In the manufacturing the light-sensitive material of the invention, pH of the coating solution is preferably 5.3-7.5. In the case of multilayer-coating, the pH of a mixture coating solution, in which a coating solution for each respective coating layer is mixed in respective amounts, is preferably 5.3-7.5. When the pH is lower than 5.3, the hardening speed is low, and when pH is higher than 7.5, photographic properties are adversely affected.

[0072] The light-sensitive material in the invention may contain in its structural layer a lubricant, such as a higher aliphatic alcohol ester described in U.S. Patent Nos. 2,588,756 and 3,121,060, casein described in U.S. Patent No. 3,295,979, a higher aliphatic calcium salt described in British Patent No. 1,623,722 or a silicone compound described in British Patent No. 1,313,384, U.S. Patent Nos. 3,042,522 and 3,489,567. A liquid paraffin dispersion can also be used for this purpose.

[0073] The various additives are further used in the light sensitive material in the invention, according to objects. The additives are detailed in Research Disclosure, Vol. 176, Item/7643, (Dec., 1978) and, ibid., Vol. 187, Item/8716, (Nov., 1979). The pages and columns where the additives are described will collectively be shown below.

	Additive	RD17643	RD18716
1.	Chemical sensitizer	p.23	p.648, r.col.
2.	Sensitivity increaser		-ditto-
3.	Spectral sensitizer	pp.23∼24	p.648, r.col.
	Supersensitizer		p.649, r.col.
4.	Whitening agent	p.24
5.	Antifoggant & stabilizer	pp.24∼25	p.649, r.col.
6.	Light absorbent & filter dye	pp.25∼26	p.649, r.col.
	UV absorbent		p.650, l.col.
7.	Antistaining agent	p.25, r.col.	p.650, l∼r.col.
8.	Dye-image stabilizer	p.25
9.	Layer hardener	p.26	p.651, l.col.
10.	Binder	p.26	-ditto-
11.	Plasticizer & lubricant	p.27	p.650, r.col.
12.	Coating aid & surfactant	pp.26∼27	-ditto-
13.	Antistatic agent	p.27	-ditto-

[0074] The processing method of the silver halide photographic light-sensitive material in the invention is not specifically limited, and various processing methods can be used. The processing temperature is usually 18 to 50°C, but temperatures lower than 18°C or higher than 50°C can be employed.

[0075] In the invention the following developing agent of a black and white developer is used singly or in combination: dihydroxy benzenes like hydroquinone, 3-pyrazolidone like 1-phenyl-3-pyrazolidone, and aminophenols like N-methyl-p-aminophenol.

[0076] The developer used in the invention further contains an alkali agent.

[0077] The developer used in the invention contains a carbonate salt in an amount of preferably 0.2 to 1.0 mol/liter, and more preferably 0.35 to 0.7 mol/liter. The developer of the invention further contains boric acid or a borate in an amount of preferably 1.6 × 10^-2 to 3.3 × 10^-1 mol/liter, more preferably 4.85 × 10^-2 to 1.6 × 10^-1 mol/liter, and still more preferably 8.0 × 10^-2 to 1.3 × 10^-1 mol/liter. The ratio, potassium ion/sodium ion in the developer used in the invention is preferably 0.2 to 10, and more preferably 0.5 to 2. Further, the replenisher for developer is supplied to the developer in an amount of preferably 50 to 200 ml per m² of the material.

[0078] The silver halide photographic light-sensitive material in the invention can be processed with a developer containing imidazols as a silver halide solvent or a developer containing the silver halide solvent and additives such as indazoles or triazols. Besides the above compounds the developer usually contains various preservatives, alkali agents, pH buffering agents, or anti-foggants, and further optionally contains an auxiliary solubility agent, a development accelerator, a surfactant, an anti-foaming agent, a water softening agent, a hardener or a viscosity increasing agent.

[0079] A fixer having a conventional composition can be used. The fixer may contain a soluble aluminum salt as a hardener.

[0080] The exposure of the photographic emulsion in the invention can be carried out using various light sources such as tungsten lamps, fluorescent lamps, an arc lamp, a mercury lamp, a xenon-sunlight lamp, a xenon flash, a cathode-ray tube flying spot, a laser light, an electron beam, a X-ray and a fluorescent screen on a X-ray photographing according to chemical sensitization of the emulsion or objects used. The exposure time is usually 1/1000 to 100 seconds, and short exposure time of 10^-4 to 10^-9 seconds applies in the case of a laser light.

EXAMPLES

[0081] The invention will be detailed in the following examples.

Example 1

(Preparation of silver halide emulsion A)

[0082] A silver bromoiodochloride emulsion having a silver chloride content of 90 mol% and a silver iodide content of 0.2 mol% was prepared in a double-jet precipitation method. In the process K₃RhBr₆ was added in an amount of 5.0 × 10^-5 mol/mol of silver. The resulting emulsion was proved to be an emulsion comprising cubic monodisperse grains having an average particle diameter of 0.20 µm (with a variation coefficient of 9%). The emulsion was desalted with denatured gelatin disclosed in Japanese Patent O.P.I. Publication No. 2-280139 (one in which an amino group in gelatin is substituted with a phenylcarbamyl group, for example, Exemplified compound G-8 in Japanese Patent O.P.I. Publication No. 2-280139). The resulting EAg after the desalting was 190mv at 50°C. The resulting emulsion was adjusted to be pH 5.58 and EAg 123mv, and the temperature thereof was elevated to 60°C. To the emulsion was added 2.2 × 10^-5 mol/mol of silver of chloroauric acid and the mixture was stirred for 2 minutes. To the mixture emulsion was added 2.9 × 10^-6 mol/mol of silver of S₈ and the mixture was chemically ripened for 78 minutes. After the ripening, the following compound was added thereto in terms of mol of silver. 4-hydroxy-6-methyl-1,3,3a,7-tetrazaindene of 7.5 × 10^-3mol, 3.5 × 10^-4mol of 1-phenyl-5-mercaptotetrazole and 28.4g of gelatin was added to the emulsion to obtain an emulsion solution.

(Preparation of silver halide photographic light-sensitive material)

[0083] A 100µm thick polyethylene terephthalate film subjected to anti-static treatment disclosed in Example 1 of Japanese Patent O.P.I. Publication No. 3-92175 was coated on the subbing layer on one side with the silver halide emulsion of the following prescription 1 to give a silver content of 3.3g/m² and a gelatin content of 2.6g/m². As a protective layer the coating solution of the following prescription 2 was coated on the emulsion layer to give a gelatin content of 1g/m². The backing layer of the following prescription 3 was coated on the subbing layer on the other side to give a gelatin content of 2.7g/m² and the backing protective layer of the following prescription 4 was coated on the backing layer to give a gelatin content of 1g/m².

[0084] The above obtained sample was in close contact with a step wedge and exposed using a light having a wavelength of 633nm as a representative of He-Ne laser light. The exposed material was processed with the following developer and fixer under the following conditions, using a rapid automatic developing machine (GR-26 SR produced by Konica Corporation).

[0085] The sample processed with the processing solutions after 500 sheets of film measuring 508mm × 610mm was processed in a replenishing amount of 150ml/m² of developer replenisher and in a replenishing amount of 200ml/m² of fixer replenisher was evaluated for running processing.

(Developer Prescription)
Sodium sulfite	55g/litre
Sodium carbonate	shown in Table 1
Hydroquinone	20g/litre
4-methyl-4-hydroxymethyl-1-phenyl-3-pyrazolidone (Dimeson)	0.9g/litre
Potassium bromide	5g/litre
Benzotriazole	0.16g/litre
Boric acid	shown in Table 1
Diethyleneglycol	40g/litre
2-mercaptohypoxanthine	60g/litre

[0086] Add to make 1 litre and adjust pH with sodium hydroxide to be 10.4.

(Fixer Prescription)
Ammonium thiosulfate(72.5%W/V solution)	240ml
Sodium sulfite	17g
Sodium acetate trihydrate	15.9g
Acetic acid(90%W/V)	18g
Boric acid	10g
Tartaric acid	1.0g
Aluminum sulfate(an aqueous 8.1 %W/V
solution converted into an A12O3 content)	26.5g
Water added to make 1 litre.

Adjust pH with acetic acid to be 4.8.

(Processing condition)
(Processing step)	(Temperature)	(Time)
Developing	35°C	30 seconds
Fixing	33°C	20 seconds
Washing	room temp.	20 seconds
Drying	40°C	40 seconds

[0087] The processed sample was measured using PDA-65 (Konica digital densitometer). The sensitivity in Table was indicated by a relative sensitivity to sensitivity at density 3.0 of Sample No.1 regarded as 100. The gamma value was measured for evaluation of image sharpness and indicated by a tangent between the densities 0.1 and 3.0. When the gamma value is less than 6, it can not be put into practical use. When the gamma value is 6 to less than 10, it is not a satisfactory contrast. The material having a gamma value of not less than 10 gives a ultra high contrast and can be put into practical use. The results are shown in Table 1.

Table 1

Sample No.	Carbonate (mol/l)	Boric acid (mol/l)	K/Na ratio	Fresh solutions		Solutions after processing		Remarks
				Sensitivity	Gamma	Sensitivity	Gamma
1	0.15	0	0.1	100	11.0	90	10.1	Comp.
2	0.25	0	0.1	101	12.0	99	12.0	Inv.
3	0.4	0	0.1	102	12.0	99	11.9	Inv.
4	0.15	1.6×10-2	0.1	101	11.1	89	9.9	Comp.
5	0.25	4.85×10-2	0.1	101	12.0	100	11.9	Inv.
6	0.25	0	0.3	101	12.0	100	11.9	Inv.
7	0.25	4.85×10-2	0.3	100	12.1	101	12.1	Inv.
8	0.4	3.2×10-2	0.25	101	12.1	101	12.1	Inv.

[0088] As is apparent from above Table, the invention shows the less difference in the sensitivity and gamma value between the fresh and processed solutions.

Example 2

(Coating of anti-static layer)

[0089] A polyethylene terephthalate support which had been corona-charged in strength of 10(w/m2·min.) and then subbed with vinylidene chloride polymer was corona-charged in strength of 10(w/m2·min). Thereafter, the anti-static layer of the following composition was coated.

Water soluble conductive polymer (P)	0.7g/m2
Hydrophobic latex (L)	0.2g/m2
Ammonium sulfate	20mg/m2
Hardener (E)	0.1g/m2
Polyethyleneglycol (molecular weight 600)	5.0g/m2

(Preparation of Emulsion EM-1)

[0090] Monodisperse silver bromochloride grains containing 10^-5 mol/mol of silver of a rhodium salt, and having a silver bromide content of 2 mol%, an average particle diameter of 0.20 µm and a monodisperse degree of 20 were prepared under an acidic atmosphere in a double-jet precipitation method. The growth of the grains was carried out in a system containing an aqueous 1 % gelatin solution containing 30mg/litre of benzyladenine. After mixing silver and halides, 600mg of mol of silver of 6-methyl-4-hydroxy-1,3,3a,7-tetrazaindene of 7.5 × 10^-3mol was added to the mixture, and was washed and desalted. Thereafter, sodium thiosulfate was added to the emulsion for sulfur sensitization. To the above obtained emulsion was added the following additives to have a content of the following amount and the resulting emulsion was coated on the above subbing layered polyethylene terephthalate support.

[0091] The coating solution was coated after adjusting to pH 6.5 with sodium hydroxide.

[0092] The following emulsion protective layer was coated to have the following content simultaneously together with the emulsion.

(Protective layer)
Fluorinated dioctylsulfosuccinate	100mg/m2
Dioctylsulfosuccinate	100mg/m2
Matting agent: amorphous silica	50mg/m2
Compound (O)	30mg/m2
5-methylbenzotriazole	20mg/m2
Compound (P)	500mg/m2
propyl gallate	300mg/m2
Styrene-maleic acid copolymer Alkali processed gelatin	100mg/m2
(isoelectric point 4.9)	1.0g/m2
Formalin	10mg/m2

[0093] The coating solution was coated after adjusting to pH 5.4 with citric acid.

[0094] The backing layer was provided on the support side opposite the emulsion layer in the same manner as in Example 2 of Japanese Patent O.P.I. Publication No.2-226134.

[0095] Sample No. 1 obtained above was evaluated in the same manner as in Example 1, except that the following processing condition was carried out.

(Processing condition)
Processing step	Temperature, °C	Time, seconds
Developing	35	15
Fixing	35	10
Washing	room temp.	10
Drying	45	7.5

[0096] The results are shown in Table 2.

Table 2

Sample No.	Carbonate (mol/l)	Boric acid (mol/l)	K/Na ratio	Fresh solutions		Solutions after processing		Remarks
				Sensitivity	Gamma	Sensitivity	Gamma
1	0.15	0	0.1	100	10.5	89	10.4	Comp.
2	0.25	0	0.1	101	11.0	101	11.0	Inv.
3	0.4	0	0.1	101	11.0	101	11.0	Inv.
4	0.15	1.6×10-2	0.1	100	10.4	88	9.8	Comp.
5	0.25	4.85×10-2	0.1	102	11.0	100	11.0	Inv.
6	0.25	0	0.3	103	11.0	101	10.9	Inv.
7	0.25	4.85×10-2	0.3	102	11.1	102	11.1	Inv.
8	0.4	3.2×10-2	0.25	102	11.1	102	11.2	Inv.

[0097] As is apparent from Table 2, the invention shows the same less variation of photographic properties as Example 1.

Example 3

[0098] Samples were prepared in the same manner as in Example 1, except that the emulsion comprising silver halide grains having a silver chloride content as shown in Table 3 was used. The samples above obtained above were processed in the same manner as in Example 1, except that the developer shown in Table 3 was used and evaluated in the same manner as in Example 1. Further, black spots at unexposed portions of the developed samples was counted in terms of the number per 1 × 10^-2cm², using 10 power magnifier.

[0099] The results are shown in Table 3.

Table 3

Sample No.	Silver chloride content (mol%)	Carbonate (mol/l)	Boric acid (mol/l)	K/Na ratio	Fresh solutions			Solutions after processing			Remarks
					Sensitivity	Gamma	*P.F	Sensitivity	Gamma	*P.F
1	85	0.25	0	0.1	96	11.5	4	87	10.4	38	Comp.
2	92	0.25	0	0.1	102	12.0	2	102	12.1	3	Inv.
3	85	0.25	4.85×10-2	0.1	98	11.4	5	88	10.3	42	Comp.
4	92	0.25	4.85×10-2	0.1	103	11.8	2	103	12.0	2	Inv.
5	85	0.25	0	0.3	97	11.5	6	90	10.0	54	Comp.
6	92	0.25	0	0.3	103	11.9	2	103	11.9	2	Inv.
7	85	0.25	4.85×10-2	0.3	99	11.6	6	86	10.1	50	Comp.
8	92	0.25	4.85×10-2	0.3	102	12.1	2	102	12.2	1	Inv.
P.F: black spots

Example 4

[0100] Samples were prepared in the same manner as in Example 2, except that the emulsion comprising silver halide grains having a silver chloride content as shown in Table 4 was used. The samples above obtained above were processed in the same manner as in Example 1, except that the developer shown in Table 4 was used and evaluated in the same manner as in Example 2. Further, fog of the samples was measured.

[0101] The results are shown in Table 4.

Table 4

Sample No.	Silver chloride content (mol%)	Carbonate (mol/l)	Boric acid (mol/l)	K/Na ratio	Fresh solutions			Solution after processing			Remarks
					Sensitivity	Gamma	Fog	Sensitivity	Gamma	Fog
1	80	0.25	4.85×10-2	0.2	93	10.4	0.02	82	9.4	0.12	Comp.
2	86	0.25	4.85×10-2	0.2	96	10.5	0.02	82	9.4	0.10	Comp.
3	92	0.25	4.85×10-2	0.2	102	11.0	0.02	102	11.0	0.02	Inv.
4	96	0.25	4.85×10-2	0.2	102	11.0	0.02	102	11.0	0.02	Inv.

Claims

1. A method of processing with a developer a silver halide photographic light-sensitive material comprising a support and provided thereon, a silver halide emulsion layer comprising silver halide grains having not less than 90 mol % chloride, the emulsion layer or a hydrophilic colloid layer adjacent to said emulsion layer containing a tetrazolium compound or a hydrazine derivative, and replenisher for developer being supplied to the developer in an amount of not more than 200 ml per m² of the material processed, wherein said developer contains a carbonate salt in an amount of not less than 0.2 mol/liter.

2. The method of claim 1, wherein said developer further contains not less than 1.6 × 10^-2 mol/liter of boric acid or a borate.

3. The method of claim 1, wherein the ratio of a potassium ion to a sodium ion of said developer is not less than 0.2.

4. The method of claim 2, wherein the ratio of a potassium ion to a sodium ion of said developer is not less than 0.2.

5. The method of claim 1, wherein said developer contains a carbonate salt in an amount of 0.2 to 1.0 mol/liter.

6. The method of claim 2, wherein said developer contains 1.6 × 10^-2 to 3.3 × 10^-1 mol/liter of boric acid or a borate.

7. The method of claim 3, wherein the ratio of a potassium ion to a sodium ion of said developer is 0.2 to 10.

8. The method of claim 1, wherein said hydrazine derivative is represented by Formula [H]

wherein A represents a substituted or unsubstituted aliphatic, aryl or heterocyclic group; B represents an acyl group, an arylsulfonyl group, an alkylsulfinyl group, an arylsulfinyl group, a carbamoyl group, an alkoxycarbonyl group, an aryloxycarbonyl group, a sulfamoyl group, a sulfinamoyl group, an alkoxysulfonyl group, a thioacyl group, a thiocarbamoyl group, an oxalyl group or a heterocyclic group, provided that B may form -N=C(R₉) (R₁₀) together with A₂ and a nitrogen atom, wherein R₉ represents a substituted or unsubstituted, aryl or heterocyclic group and R₁₀ represents a hydrogen atom or a substituted or unsubstituted alkyl, aryl or heterocyclic group; and A₁ and A₂ both represent hydrogen atoms or one of A₁ and A₂ represents a hydrogen atom and the other represents an acyl group, a sulfonyl group or an oxalyl group.

9. The method of claim 1, wherein said hydrazine derivative is represented by Formula [Ha]

wherein R₁₁ represents a substituted or unsubstituted aryl or heterocyclic group; R₁₂ represents

group and -OR₁₅ group wherein R₁₃ and R₁₄ independently represent a hydrogen atom, a substituted or unsubstituted alkyl, alkenyl, alkinyl, aryl or heterocyclic group, a substituted or unsubstituted alkoxy, alkenyloxy, alkinyloxy, aryloxy or heterocyclicoxy group, an amino group or a hydroxy group, provided that R₁₃ and R₁₄ may form a ring together with a nitrogen atom and R₁₅ represents a hydrogen atom or a substituted or unsubstituted alkyl, alkenyl, alkinyl, aryl or heterocyclic group; and A₃ and A₄ both represent hydrogen atoms or one of A₃ and A₄ represents a hydrogen atom and the other represents an acyl group, a sulfonyl group or an oxalyl group.

10. The method of claim 1, wherein said tetrazolium compound is represented by Formula [T]

wherein R₁, R₂ and R₃ are a hydrogen atom or a group having a negative or positive Hammett's sigma value (σP); n represents 1 or 2; and X^- represents an anion.

Ansprüche

1. Verfahren zum Behandeln eines lichtempfindlichen photographischen Silberhalogenid-Aufzeichnungnsmaterials mit einem Schichtträger und einer darauf befindlichen Silberhalogenidemulsionsschicht mit Silberhalogenidkörnchen mit nicht weniger als 90 Mol-% Chlorid, bei welchem die dieser Emulsionsschicht benachbarte Emulsionsschicht oder hydrophile Kolloidschicht eine Tetrazoliumverbindung oder ein Hydrazinderivat enthält, mit einem Entwickler und einer dem Entwickler in einer Menge von nicht mehr als 200 ml/m² des behandelten Aufzeichnungsmaterials zugeführten Ergänzungslösung für den Entwickler, wobei der Entwickler ein Carbonatsalz in einer Menge von nicht weniger als 0,2 mol/l enthält.

2. Verfahren nach Anspruch 1, wobei der Entwickler zusätzlich nicht weniger als 1,6 x 10^-2 mol/l Borsäure und eines Borats enthält.

3. Verfahren nach Anspruch 1, wobei das Verhältnis Kaliumionen/Natriumionen des Entwicklers nicht weniger als 0,2 beträgt.

4. Verfahren nach Anspruch 2, wobei das Verhältnis Kaliumionen/Natriumionen des Entwicklers nicht weniger als 0,2 beträgt.

5. Verfahren nach Anspruch 1, wobei der Entwickler ein Carbonatsalz in einer Menge von 0,2 bis 1,0 mol/l enthält.

6. Verfahren nach Anspruch 2, wobei der Entwickler 1,6 x 10^-2 bis 3,3 x 10^-1 mol/l Borsäure oder eines Borats enthält.

7. Verfahren nach Anspruch 3, wobei das Verhältnis Kaliumionen/Natriumionen des Entwicklers 0,2 bis 10 beträgt.

8. Verfahren nach Anspruch 1, wobei das Hydrazinderivat der Formel [H]

worin bedeuten:

A eine substituierte oder unsubstituierte aliphatische Gruppe, Arylgruppe oder heterocyclische Gruppe;

B eine Acylgruppe, eine Arylsulfonylgruppe, eine Alkylsulfinylgruppe, eine Arylsulfinylgruppe, eine Carbamoylgruppe, eine Alkoxycarbonylgruppe, eine Aryloxycarbonylgruppe, eine Sulfamoylgruppe, eine Sulfinamoylgruppe, eine Alkoxysulfonylgruppe, eine Thioacylgruppe, eine Thiocarbamoylgruppe, eine Oxalylgruppe oder eine heterocyclische Gruppe, wobei gilt, daß B zusammen mit A₂ und einem Stickstoffatom -N=C(R₉)(R₁₀) mit R₉ gleich einer substituierten oder unsubstituierten Gruppe, Arylgruppe oder heterocyclischen Gruppe und R₁₀ gleich einem Wasserstoffatom oder einer substituierten oder unsubstituierten Alkylgruppe, Arylgruppe oder heterocyclischen Gruppe bilden kann, und A₁ und A₂ beide Wasserstoffatome oder einer der Reste A₁ und A₂ ein Wasserstoffatom und der andere eine Acylgruppe, eine Sulfonylgruppe oder eine Oxalylgruppe,

entspricht.

9. Verfahren nach Anspruch 1, wobei das Hydrazinderivat der Formel [Ha]

worin bedeuten:

R₁₁ eine substituierte oder unsubstituierte Arylgruppe oder heterocyclische Gruppe;

R₁₂ eine

-Gruppe oder -OR₁₅-Gruppe mit R₁₃ und

R₁₄ unabhängig voneinander gleich einem Wasserstoffatom, einer substituierten oder unsubstituierten Alkylgruppe, Alkenylgruppe, Alkinylgruppe, Arylgruppe oder heterocyclischen Gruppe, einer substituierten oder unsubstituierten Alkoxygruppe, Alkenyloxygruppe, Alkinyloxygruppe, Aryloxygruppe oder heterocyclischen Oxygruppe, einer Aminogruppe oder einer Hydroxygruppe, wobei gilt, daß R₁₃ und R₁₄ zusammen mit einem Stickstoffatom einen Ring bilden können, und R₁₅ gleich einem Wasserstoffatom oder einer substituierten oder unsubstituierten Alkylgruppe, Alkenylgruppe, Alkinylgruppe, Arylgruppe oder heterocyclischen Gruppe, und A₃ und A₄ beide Wasserstoffatome oder einer der Reste A₃ und A₄ ein Wasserstoffatom und der andere eine Acyl-, Sulfonyl- oder Oxalylgruppe,

entspricht.

10. Verfahren nach Anspruch 1, wobei die Tetrazoliumverbindung der Formel [T]

worin R₁, R₂ und R₃ ein Wasserstoffatom oder eine Gruppe mit negativem oder positivem Hammett-Sigmawert (σP) darstellen, n für 1 oder 2 steht und X^- ein Anion bedeutet,
entspricht.

Revendications

1. Procédé de traitement à l'aide d'un révélateur d'une surface photosensible photographique à base d'halogénure d'argent comprenant un support et sur lequel est appliquée une couche d'émulsion à base d'halogénure d'argent comprenant des grains d'halogénure d'argent ne contenant pas moins de 90 moles % de chlorure, la couche d'émulsion ou la couche colloïdale hydrophile adjacente à ladite couche d'émulsion contenant un dérivé tétrazolium ou un dérivé d'hydrazine et le réapprovisionnement du révélateur étant amené au révélateur en une quantité ne dépassant pas 200 ml par m² de surface traitée, dans lequel ledit révélateur contient un carbonate à raison d'une quantité non inférieure à 0,2 mole/litre.

2. Le procédé de la revendication 1, dans lequel ledit révélateur contient en outre pas moins de 1,6 x 10^-2 moles/litre d'acide borique ou de borate.

3. Le procédé selon la revendication 1, dans lequel le rapport de l'ion potassium à l'ion sodium dans ledit révélateur n'est pas inférieur à 0,2.

4. Le procédé selon la revendication 2, dans lequel le rapport à l'ion potassium dans l'ion sodium dudit révélateur n'est pas inférieur à 0,2.

5. Le procédé selon la revendication 1, dans lequel ledit révélateur contient un carbonate à raison de 0,2 à 1,0 mole/litre.

6. Le procédé selon la revendication 2, dans lequel ledit révélateur contient 1,6 x 10^-2 à 3,3 x 10-1 moles/litre d'acide borique ou d'un borate.

7. Le procédé selon la revendication 3, dans lequel le rapport de l'ion potassium à l'ion sodium dans ledit révélateur est de 0,2 à 10.

8. Le procédé selon la revendication 1, dans lequel ledit dérivé d'hydrazine répond à la formule [H].

où A représente un groupe aliphatique, aryle ou hétérocyclique, substitué ou non substitué ; B représente un groupe acyle un groupe arylsulfonyle, un groupe alkylsulfinyle, un groupe arylsulfinyle, un groupe carbamoyle, un groupe alcoxycarbonyle, un groupe aryloxycarbonyle, un groupe sulfamoyle, un groupe sulfinamoyle, un groupe alcoxysulfonyle, un groupe thioacyle, un groupe thiocarbamoyle, un groupe oxalyle ou un groupe hétérocyclique, avec cette condition que B peut former -N=C(R₉) (R₁₀) avec A₂ et un atome d'azote, où R₉ représente un groupe aryle ou hétérocyclique, substitué ou non substitué, et R₁₀ représente un atome d'hydrogène ou un groupe alkyle, aryle, ou hétérocyclique, substitué ou non substitué, et A₁ et A₂ représentent tous les deux des atomes d'hydrogène ou bien l'un des A₁ et A₂ représente un atome d'hydrogène et l'autre représente un groupe acyle, un groupe sulfonyle ou un groupe oxalyle.

9. Le procédé selon la revendication 1, dans lequel ledit dérivé d'hydrazine répond à la formule [Ha]

où R₁₁ représente un groupe aryle ou hétérocyclique substitué ou non substitué : R₁₂ représente un groupe :

et un groupe -OR₁₅
où R₁₃ et R₁₄ représentent indépendamment l'un de l'autre, un atome d'hydrogène, un groupe alkyle, alkényle, alkinyle, aryle ou hétérocyclique, substitué ou non substitué, un groupe alcoxy, alkényloxy, alkinyloxy, aryloxy ou hétérocyclicoxy, substitué ou non substitué, un groupe amino ou un groupe hydroxy, avec cette condition que R₁₃ et R₁₄ peuvent former un cycle avec l'atome d'azote, et R₁₅ représente un atome d'hydrogène ou un groupe alkyle, alkényle, alkinyle, aryle ou hétérocyclique, substitué ou non substitué ; et A₃ et A₄ représentent l'un et l'autre des atomes d'hydrogène ou bien l'un des A₃ et A₄ représente un atome d'hydrogène ou un groupe acyle, un groupe sulfonyle ou un groupe oxalyle.

10. Le procédé selon la revendication 1, dans lequel ledit dérivé de tétrazolium répond à la formule [T]

où R₁, R₂ et R₃ sont un atome d'hydrogène ou un groupe ayant une valeur sigma de Hammett (σP) négative ou positive ; n représente 1 ou 2 et X^- représente un anion.