JPH1165041A - Processing agent for silver halide photographic sensitive material and manufacture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide stable and long preservability without discoloration after quick processing by containing a specific compound in a processing agent used in a process after a fixing process. SOLUTION: This processing agent is used in a process after a fixing process and contains a compound expressed by the formula. In the formula, R11 and R15 are respectively an alkyl group with a number of carbons one to five, substituted alkyl, alkoxy, cyano group. R12 to R14 are respectively a hydrogen atom, carboxyl, sulfanate acid, sulfuric acid, alkyl group with a number of carbons one to four that a phosphoric acid is substituted, or alkenyl group. R12 to R14 are not hydrogen atoms at the same time. R11 and R15 are desirably and respectively an alkyl group with a number of carbons 3 or 4, substituted alkyl, alkoxy, or substituted alkoxy group. R12 to R14 are desirably a carboxy, sulfanate acid, sulfuric acid, phosphoric acid group, further, two of R12 to R14 are desirably these groups.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for processing a silver halide photographic light-sensitive material (hereinafter, also simply referred to as "light-sensitive material"), and more particularly, to a processing agent for a light-sensitive material having improved image storability after development processing. And its processing method.

[0002]

2. Description of the Related Art In recent years, with the progress of electronics, the shortening of access time to images has been drastically reduced, and the processing speed of silver halide photographic light-sensitive materials has been demanded.

[0003] On the other hand, images of photographic light-sensitive materials, especially medical diagnostic images, may be monitored for a long time, so that long-term storage is legally required. It has been.

The storability of an image of a black-and-white light-sensitive material varies depending on the type of the light-sensitive material, development processing conditions, storage conditions after processing, and the like. Are generated, and the silver image is discolored and discolored to yellow (sulfur discoloration).

When a silver image is stored for a long period of time, the color of the image becomes dark brown due to irradiation of ultraviolet rays or exhaust gas from an automobile, oxidizing gas, or the like. In the case of a medical film, image diagnosis is hindered.

Therefore, in order to achieve rapid processing, a new development that also improves such image storability has been desired.

[0007]

SUMMARY OF THE INVENTION An object of the present invention is to provide a processing agent for a black-and-white silver halide photographic light-sensitive material which can be stored stably for a long time without discoloration of a silver image after rapid processing, and a processing method thereof. Is to do.

[0008]

The object of the present invention has been solved by the following constitution.

[1] A processing agent for a silver halide photographic light-sensitive material, characterized in that it contains at least one compound represented by the following general formula (1), which is used in the processing steps after the fixing step. For silver halide photographic materials.

[0010]

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In the formula, R ₁₁ and R ₁₅ each independently represent an alkyl group having 1 to 5 carbon atoms, a substituted alkyl group, an alkoxy group, a substituted alkoxy group, or a cyano group. R ₁₂ , R ₁₃ and R ₁₄ each independently represent a hydrogen atom, a carboxyl group, a sulfonic acid group, a sulfate group, or a C 1 -C 4 alkyl or alkenyl group substituted with a phosphate group.
However, R ₁₂ , R ₁₃ and R ₁₄ are not simultaneously hydrogen atoms.

[2] A processing agent for a silver halide photographic light-sensitive material, characterized in that it contains at least one kind of a compound represented by the following general formula (2), which is used in a processing step after a fixing step. For silver halide photographic materials.

[0013]

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In the formula, R ₂₁ , R ₂₃ , R ₂₅ and R ₂₆ each independently represent a hydrogen atom, a hydroxy group, a carboxyl group,
Represents an alkyl group, an aryl group, an alkoxy group, an aryloxy group, or a substituted alkyl group, a substituted aryl group, a substituted alkoxy group, a substituted aryloxy group, or a sugar residue. However, R ₂₁ , R ₂₃ , R ₂₅ and R ₂₆ are not hydrogen atoms at the same time.

R ₂₂ and R ₂₄ each independently represent a hydrogen atom, a halogen atom, a hydroxy group, a carboxyl group, an alkyl group, an aryl group, an alkoxy group, an aryloxy group, or a substituted alkyl group, a substituted aryl group, a substituted alkoxy group. Group, substituted aryloxy group, and sugar residue.

[3] A processing agent for a silver halide photographic light-sensitive material, characterized in that it contains at least one compound represented by the following general formula (3), which is used in a processing step after a fixing step. For silver halide photographic materials.

[0017]

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In the formula, R ₃₁ , R ₃₃ , R ₃₅ and R ₃₆ each independently represent a hydrogen atom, a hydroxy group, a carboxyl group,
Represents an alkyl group, an aryl group, an alkoxy group, an aryloxy group, or a substituted alkyl group, a substituted aryl group, a substituted alkoxy group, a substituted aryloxy group, or a sugar residue. However, R ₃₁ , R ₃₃ , R ₃₅ and R ₃₆ are not hydrogen atoms at the same time. R ₃₂ and R ₃₄ each independently represent a hydrogen atom, a halogen atom, a hydroxy group, a carboxyl group, an alkyl group, an aryl group, an alkoxy group, an aryloxy group, or a substituted alkyl group, a substituted aryl group, a substituted alkoxy group, Represents an aryloxy group or a sugar residue.

[4] A processing agent for a silver halide photographic light-sensitive material, characterized in that it contains at least one disulfide compound having a molecular weight of 500 to 5000, which is used in a processing step after a fixing step. Processing agent for silver photographic light-sensitive materials.

Formula (4) -SS- [5] In a processing agent for a silver halide photographic light-sensitive material,
A processing agent for a silver halide photographic light-sensitive material, which is used in a processing step after a fixing step and contains at least one compound represented by the following general formula (5).

Formula (5) R ₅₁ -SR _{52 In the} formula, R ₅₁ and R ₅₂ each independently represent an alkyl group having 1 to 8 carbon atoms, a substituted alkyl group, an aryl group, a substituted aryl group, a heterocyclic compound. Represents a substituted heterocyclic compound.

[6] A processing agent for a silver halide photographic light-sensitive material, characterized in that it contains at least one compound represented by the following general formula (6), which is used in a processing step after a fixing step. For silver halide photographic materials.

[0023]

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In the formula, R ₆₁ represents a hydrogen atom or a methyl group. R ₆₂ , R ₆₃ and R ₆₄ each independently represent a hydrogen atom, an alkyl group having 1 to 3 carbon atoms, or a carboxyl group. However, when R ₆₂ , R ₆₃ and R ₆₄ are alkyl groups, they may be substituted with a hydroxyl group, a carboxyl group or a sulfo group.

[7] The processing for a silver halide photographic light-sensitive material according to [6], wherein the compound represented by the general formula (6) is a compound represented by the following general formula (7). Agent.

[0026]

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In the formula, R ₇₁ and R ₇₂ each independently represent a hydrogen atom or a methyl group. M is a hydrogen atom, an alkali metal atom, an ammonium salt, and n is 0 or 1-2. However, when either or both of R ₇₁ and R ₇₂ are a methyl group, they may be substituted with —COOM or —OH.

[8] The processing agent for a silver halide photographic material according to [6], wherein R ₆₁ in the general formula (6) is a hydrogen atom.

[0029]

[9] A processing agent for a silver halide photographic light-sensitive material, characterized in that it contains at least one compound represented by the following general formula (8), which is used in a processing step after a fixing step and is included. Processing agent for silver photographic light-sensitive materials.

Formula (8) MnHAO _{3 In the} formula, M represents a monovalent or divalent atom, and n represents 2 when M is monovalent and 1 when M is divalent. A is P,
Represents Sb and Bi.

[10] A processing agent for a silver halide photographic light-sensitive material, characterized in that it contains at least one compound represented by the following general formula (9), which is used in the processing steps after the fixing step. For silver halide photographic materials.

Formula (9) R ₉₁ -NHOH wherein R ₉₁ represents a hydrogen atom, an alkyl group having 1 to 4 carbon atoms, an alkenyl group or an acyl group having 2 to 4 carbon atoms, The acyl group may be substituted with a group selected from a hydroxyl group, a carboxyl group, an amino group, a nitro group, a sulfo group, a sulfate group, and salts thereof.

[11] The processing agent for a silver halide photographic material as described in any one of [1] to [10] above, wherein the processing agent is a fixing solution.

[12] The processing agent for a silver halide photographic light-sensitive material as described in any one of [1] to [10] above, wherein the processing agent is a stabilizing solution or washing water.

[13] A method for processing a silver halide photographic light-sensitive material, wherein the processing agent according to any one of the above [1] to [12] is used in a processing step after a fixing step.

Hereinafter, the present invention will be described in detail.

The compound represented by formula (1) will be described.

In the formula, R ₁₁ and R ₁₅ each independently represent an alkyl group having 1 to 5 carbon atoms, a substituted alkyl group, an alkoxy group, a substituted alkoxy group or a cyano group. R ₁₂ ,
R ₁₃ and R ₁₄ each independently represent a hydrogen atom, a carboxy group, a sulfonic group, a sulfate group, a phosphate group, or
A carboxy group, a sulfonic acid group, a sulfuric acid group, or a phosphoric acid group represents an alkyl or alkenyl group having 1 to 4 carbon atoms which is substituted. However, R ₁₂ , R ₁₃ and R ₁₄ are not hydrogen atoms at the same time.

R ₁₁ and R ₁₅ are preferably an alkyl group having 3 or 4 carbon atoms, a substituted alkyl group, an alkoxy group or a substituted alkoxy, respectively.

R ₁₂ , R ₁₃ and R ₁₄ represent a carboxy group,
It is preferably a sulfonic acid group, a sulfate group, or a phosphate group. More preferably, two of R ₁₂ , R ₁₃ and R ₁₄ are the above groups.

The compound represented by the general formula (1) can be synthesized by a generally known method, and the preferable addition amount thereof is preferably 0.001 mol to 0.1 mol / l. More preferably, 0.01 mol to 0.1 mol.
07 mol / l.

Hereinafter, specific examples of the compound represented by the general formula (1) of the present invention will be shown, but are not limited to the following compounds.

[0043]

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[0044]

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Next, the compound represented by formula (2) will be described.

In the formula, R ₂₁ , R ₂₃ , R ₂₅ and R ₂₆ each independently represent a hydrogen atom, a hydroxy group, a carboxy group,
Represents an alkyl group, an aryl group, an alkoxy group, an aryloxy group, or a substituted alkyl group, a substituted aryl group, a substituted alkoxy group, a substituted aryloxy group, or a sugar residue. However, R ₂₁ , R ₂₃ , R ₂₅ and R ₂₆ are not simultaneously hydrogen atoms.

Among these substituents, preferred substituents are a hydroxy group, a methoxy group, a phenyloxy group, a hydroxy-substituted phenyl group and a sugar residue, and particularly preferred are a hydroxy group and a hydroxy-substituted group. Phenyl group.

R ₂₂ and R ₂₄ each independently represent a hydrogen atom, a halogen atom, a hydroxy group, a carboxy group, an alkyl group, an aryl group, an alkoxy group, an aryloxy group, or a substituted alkyl group, a substituted aryl group, Represents an alkoxy group, a substituted aryloxy group, or a sugar residue.
Preferred substituents among these substituents are a hydrogen atom and a hydroxy group.

The compound represented by the general formula (2) can be synthesized by a generally known method, and the preferable addition amount thereof is preferably from 0.001 mol to 0.5 mol / l. More preferably, 0.01 mol to 0.1 mol.
2 mol / l.

Hereinafter, specific examples of the compound represented by formula (2) of the present invention will be shown, but the invention is not limited to the following compounds.

[0051]

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[0052]

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[0053]

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Next, the compound represented by formula (3) will be described.

In the formula, R ₃₁ , R ₃₃ , R ₃₅ and R ₃₆ each independently represent a hydrogen atom, a hydroxy group, a carboxy group,
Represents an alkyl group, an aryl group, an alkoxy group, an aryloxy group, or a substituted alkyl group, a substituted aryl group, a substituted alkoxy group, a substituted arylaxi group, or a sugar residue. However, R ₃₁ , R ₃₃ , R ₃₅ and R ₃₆ are not simultaneously hydrogen atoms.

Among these substituents, preferred substituents are a hydroxy group, a methoxy group, a phenyloxy group, a hydroxy-substituted phenyl group and a sugar residue, and particularly preferred are a hydroxy group and a hydroxy-substituted group. Phenyl group.

R ₃₂ and R ₃₄ each independently represent a hydrogen atom, a halogen atom, a hydroxy group, a carboxy group, an alkyl group, an aryl group, an alkoxy group, an aryloxy group, or a substituted alkyl group, a substituted aryl group, Represents an alkoxy group, a substituted aryloxy group, or a sugar residue.
Preferred substituents among these substituents are a hydrogen atom and a hydroxy group.

The compound represented by the general formula (3) can be synthesized by a generally known method, and the preferable addition amount thereof is preferably from 0.001 mol to 0.5 mol / l. More preferably, 0.01 mol to 0.1 mol.
2 mol / l.

Hereinafter, specific examples of the compound represented by formula (3) of the present invention will be shown, but it is not limited to the following compounds.

[0060]

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[0061]

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Next, the disulfide compound having a molecular weight of 500 or more of the present invention (hereinafter, also referred to as the disulfide compound of the present invention) will be described.

The disulfide compound of the present invention needs to have a molecular weight of 500 or more, but if the molecular weight is 500 or more, there are no particular restrictions on its structure and substituents.

The particularly preferred molecular weight is from 500 to 3,000. More preferably, it is 500-2000. When the molecular weight of the disulfide compound is 500 or less, the effect on photographic properties is large, and it is not practical.

However, since the disulfide compound of the present invention is preferably used after being dissolved in a developing solution, it is preferable that the compound contains a hydrophilic group such as a carboxy group, a hydroxy group, a sulfonic acid group, a sulfate group, and a phosphate group. .

Incidentally, JP-A-63-157150 and JP-A-59-157150
Patents using disulfide compounds are disclosed in, for example, JP-A-86039 and JP-A-55-25056, and these applications are applied to couplers of color light-sensitive materials,
This is an invention aimed at improving the covering power of the photosensitive material, and is different from the object and configuration of the present invention. Further, the molecular weight of the compound is outside the scope of the present invention, which is different from the present invention.

The disulfide compound of the present invention can be synthesized by a generally known method. That is, it can be obtained by oxidizing a mercapto-containing compound using an enzyme or another oxidizing agent.

The following are specific examples of the disulfide compound of the present invention, but are not limited to the following compounds.

[0069]

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Next, the compound represented by formula (5) will be described.

In the formula, R ₅₁ and R ₅₂ each independently represent an alkyl group having 1 to 8 carbon atoms, a substituted alkyl group, an aryl group, a substituted aryl group, a heterocyclic compound or a substituted heterocyclic compound.

Among them, preferred are an alkyl group, an aryl group and a heterocyclic compound having 1 to 6 carbon atoms, and more preferred are a substituted alkyl group, a substituted aryl group and a substituted heterocyclic compound. Preferred substituents are a hydroxy group, a carboxy group, a sulfo group or a metal salt thereof.

The compound represented by the general formula (5) can be usually synthesized by a known method. The preferred usage is preferably 0.005 mol to 1.5 mol / l. More preferably, from 0.01 mol to
1 mol / liter.

Hereinafter, specific examples of the compound represented by formula (5) of the present invention will be given, but it should not be construed that the invention is limited thereto.

[0075]

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Next, the compounds represented by formulas (6) and (7) will be described.

In the general formula (6), R ₆₁ in the formula is selected from a hydrogen atom or a methyl group. R ₆₂ , R ₆₃ and R
₆₄ is independently selected from a hydrogen atom, an alkyl group having 1 to 3 carbon atoms, a hydroxyalkyl group, a carboxyalkyl group, a sulfoalkyl group or a carboxyl group.

When R ₆₂ , R ₆₃ and R ₆₄ are alkyl groups, there is no --SH group as a substituent.

It is preferable that R ₆₂ , R ₆₃ and R ₆₄ are substituted with a hydroxyalkyl group, a carboxyalkyl group and a sulfoalkyl group, respectively, in order to reduce odor. In order to exhibit the effects of the present invention, R ₆₁ is more preferably a hydrogen atom.

In the general formula (7), R ₇₁ and R ₇₂ are selected from a methyl group, a hydroxyalkyl group and a carboxyalkyl group. Note that R ₇₁ and R ₇₂ in the general formula (7) represent -S
The H group is not substituted. M can take a hydrogen atom, an alkali metal atom, or an ammonium salt.

Although n can take 0, 1, or 2, 0 is the highest as the effect of the present invention. Specific examples of the compounds represented by the general formulas (6) and (7) according to the present invention are shown below, but the present invention is not limited thereto.

[0082]

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[0083]

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[0084]

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All of these compounds are known compounds and can be easily obtained by synthesis, extraction, and the like. Among these, the compounds particularly preferred for the present invention are (7-1), (7-2) and (7-5).

The amount of the compounds represented by the above general formulas (6) and (7) of the present invention is not particularly limited, but practically 0.01 mol to 1 liter of the processing solution actually used.
1.5 mol may be used, more preferably 0.05 mol to 1 mol.

Next, the compound represented by formula (8) will be described.

In the general formula (8), M in the formula is 1
Represents a divalent or divalent atom, n is 2, M when M is monovalent,
Represents 1 when is divalent. A represents P, Sb, or Bi, and P is a particularly preferably used atom.

The compound represented by the general formula (8) can be synthesized by a generally known method, and the preferable addition amount thereof is preferably 0.01 mol to 1 mol per liter of the processing solution. Is 0.05 mol to 0.5 mol.

Hereinafter, specific examples of the compound represented by the general formula (8) will be given, but it should not be construed that the invention is limited thereto.

8-1) K ₂ HPO ₃ 8-2) Na ₂ HPO ₃ 8-3) MgHPO ₃ 8-4) K ₂ HSbO ₃ 8-5) Na ₂ HSbO ₃ 8-6) MgHSbO ₃ 8-7 _{) K 2 HBiO 3 8-8) Na} 2 HBiO 3 8-9) MgHBiO 3 next the compound of the general formula (9) of the present invention will be described.

In the general formula (9), R ₉₁ represents a hydrogen atom or a substituted or unsubstituted alkyl group having 1 to 4 carbon atoms, a substituted or unsubstituted alkenyl group having 2 to 4 carbon atoms,
Represents an acyl group, and the substituent is an alkyl group, an alkenyl group, and the acyl group is a group selected from hydroxyl, carboxyl, amino, nitro, sulfo, sulfate, and salts thereof. Preferred groups are an alkyl group or an alkyl group substituted with a hydroxyl group.

Hereinafter, specific examples of the compound represented by the general formula (9) will be shown, but the present invention is not limited thereto.

[0094]

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[0095]

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Among the exemplified compounds, preferred compounds include (9-2), (9-3) and (9-10).
These compounds may be added in the form of lead sulfate, hydrochloride, oxalate and the like, and the amount of addition is not particularly limited, but practically, 0.01 mol to 1 mol / liter of the processing solution actually used.
1.5 mol may be used, more preferably 0.05 mol to 1 mol.

The above-mentioned compound of the present invention is contained in the processing agent after the fixing step. In order to exert the effects of the present invention, it is preferable that the above-mentioned compound is contained in the post-fixing step as much as possible. Preference is given to adding to water or stabilizing solution. However, from the viewpoint of simplicity of the liquid preparation operation or reduction in the number of processing agent kits, it is better to include them in the fixing solution. The effect of the present invention can be obtained by reprocessing the developed film with a liquid containing the compound of the present invention.

Next, the fixing solution used in the present invention will be described.

The fixing solution preferably contains a thiosulfate. Thiosulfates are usually used as lithium, potassium, sodium, ammonium salts,
Preferably, sodium thiosulfate and ammonium thiosulfate are used. More preferably, a fixing solution having a high fixing speed can be obtained by using an ammonium salt, but a sodium salt is preferable from the viewpoint of storage stability and the like.

The concentration of thiosulfate is preferably 0.1 to 5
Mol / l, more preferably 0.5 to 2 mol / l, even more preferably 0.7 to 1.8 mol / l. In addition, iodide salts, thiocyanates and the like can also be used as fixing agents.

The fixing solution contains a sulfite, and the concentration of the sulfite is 0.2 mol / liter or less when the thiosulfate and the sulfite are dissolved and mixed in an aqueous solvent. As the sulfite, a solid lithium, potassium, sodium, ammonium salt or the like is used, which is dissolved and used together with the solid thiosulfate.

The fixing solution used in the present invention may contain a water-soluble chromium salt or a water-soluble aluminum salt. Examples of the water-soluble chromium salt include chromium alum, and examples of the water-soluble aluminum salt include aluminum sulfate, potassium aluminum chloride, and aluminum chloride. The amount of the chromium salt or aluminum salt added is 0.2 to 3.0 g, preferably 1.2 to 2.5 g, per liter of the fixing solution.

The fixing agent may include acetic acid, citric acid, tartaric acid, malic acid, succinic acid, phenylacetic acid, and optical isomers thereof. These salts include, for example, potassium citrate, lithium citrate, sodium citrate, ammonium citrate, lithium hydrogen tartrate, potassium hydrogen tartrate, potassium tartrate, sodium hydrogen tartrate, sodium tartrate, ammonium hydrogen tartrate, ammonium potassium tartrate, tartaric acid Sodium potassium, sodium malate, ammonium malate,
Preferred examples include lithium, potassium, sodium, and ammonium salts represented by sodium succinate, ammonium succinate, and the like.

Among the above compounds, more preferred are acetic acid, citric acid, isocitric acid, malic acid, phenylacetic acid and salts thereof. The amount of compound added is 0.2 to
0.6 mol / l is preferred. Examples of the acid include inorganic acids and salts such as sulfuric acid, hydrochloric acid, nitric acid and boric acid, and organic acids such as formic acid, propionic acid, oxalic acid and malic acid, and preferably acids such as boric acid and aminopolycarboxylic acids. And salt. Particularly preferred aminocarboxylic acids include β-alanine and piperidine acid. The preferred addition amount of the acid is 0.5 to 40 g / liter.

Examples of the chelating agent include aminopolycarboxylic acids such as nitrilotriacetic acid and ethylenediaminetetraacetic acid, and salts thereof.

Examples of the surfactant include anionic surfactants such as sulfated and sulfonated compounds, nonionic surfactants such as polyethylene glycol and ester, and amphoteric surfactants described in JP-A-57-6840. Is mentioned. As a fixing accelerator, for example,
5-35754, JP-B-58-122535, 5
Thiourea derivative, alcohol having a triple bond in the molecule, U.S. Pat. No. 4,126,45
Thioether described in JP-A No. 9 and a meso-ion compound described in JP-A-4-229860. The pH during use of the fixing solution is usually 3.8 or higher, preferably 4.2 to 5.5.
Having.

In the present invention, washing or stabilizing treatment is preferably performed after desilvering treatment such as fixing or bleach-fixing.

The washing water or stabilizing solution of the present invention may contain a surfactant, a fluorescent whitening agent, and a chelating agent such as diethylenetriaminepentaacetic acid as a water softener. Further, an aldehyde compound such as formalin or an aldehyde releasing compound such as hexamethylenetetramine or N-methylolpyrazole may be added to the stabilizing solution as a stabilizer. In addition, a buffering agent and ammonium compound for adjusting the membrane pH suitable for dye stabilization, and various fungicides and fungicides are added to prevent the growth of bacteria in the liquid and to impart a fungicide to the treated film. You may.

Next, the developer used in the present invention will be described.

The compound used as a developing agent may contain the following developing agents for black and white development. For example, reductones (ascorbic acid, erythorbic acid); dihydroxybenzenes (hydroquinone, potassium hydroquinone monosulfonate, sodium hydroquinone monosulfonate, potassium hydroquinone disulfonate, sodium hydroquinone disulfonate, etc.); and 3-pyrazolidones (1 -Phenyl-3-pyrazolidone, 1-phenyl-4-methyl-
3-pyrazolidone, 1-phenyl-4,4-dimethyl-
3-pyrazolidone, 1-phenyl-4-ethyl-3-pyrazolidone, 1-phenyl-5-methyl-3-pyrazolidone, 1-phenyl-4-methyl-4-hydroxymethyl-3-pyrazolidone, 1-phenyl-4 , 4-Dihydroxymethyl-3-pyrazolidone, 1-p-tolyl-3
-Pyrazolidone, 1-phenyl-2-acetyl-4,4
-Dimethyl-3-pyrazolidone, 1- (2-benzothiazole) -3-pyrazolidone, 3-acetoxy-1-phenyl-3-pyrazolidone and the like; as aminophenols (o-aminophenol, p-aminophenol,
N-methyl-o-aminophenol, N-methyl-p-
Aminophenol, 2,4-diaminophenol, etc.);
As 1-allyl-3-aminopyrazolines, (1- (p
-Hydroxyphenyl) -3-aminopyrazoline, 1-
(P-methylaminophenyl) -3-aminopyrazoline, 1- (p-amino-m-methylphenyl) -3-aminopyrazoline and the like; pyrazolones (4-aminopyrazolone and the like) or a mixture thereof Is mentioned.
Of the pyrazolidones, particularly, dimesone and dimesone S substituted at the 4-position are particularly preferable since they have little change over time in the water-soluble or solid processing agent itself.

The developer (liquid) may further contain a preservative (sulfite, bisulfite, etc.) and a buffer (carbonate,
Borates, borates, sugars, phosphoric acid, etc.), alkaline agents (sodium hydroxide, potassium hydroxide, lithium hydroxide, sodium carbonate, potassium carbonate, etc.), dissolution aids (polyethylene glycols, esters thereof, etc.) Contains pH adjusters (organic acids such as citric acid and tartaric acid), sensitizers (quaternary ammonium salts, etc.), development accelerators, hardeners (dialdehydes such as glutaraldehyde), surfactants, etc. Can be done. Further, as an antifoggant, an azole organic antifoggant (indazole, imidazole, benzimidazole, triazole, benzotriazole, tetrazole, thiadiazole)
Alternatively, a masking agent (sodium hexametaphosphate, calcium hexametaphosphate, polyphosphate, etc.) for masking calcium ions mixed in tap water may be added.
Further, as a silver stain preventing agent, for example, JP-A-56-2434
7, JP-B-56-46585, JP-B-62-284
No. 9, JP-A-4-362942 and the like can be used. In addition, L. F. A. Mason, Photographic Processing Chemistry, Focal Press (1966) 22-22
9, U.S. Pat. Nos. 2,193,015 and 2,592,
No. 364 and JP-A-48-64933 may be used.

PH at the time of use of the developer used in the present invention
Is preferably in the range of 9 to 12, more preferably 9.5 to
10.5.

The developer used in the present invention, the fixing solution and the stabilizing solution of the present invention are preferably provided to the user in the form of a concentrated solution or solid. To solidify the processing agent, a concentrated liquid or fine powder or granular photographic processing agent and a water-soluble binder are kneaded and molded, or a water-soluble binder is sprayed on the surface of the temporarily formed photographic processing agent. To form a coating layer, etc.
Any means can be adopted (for details, see JP-A-4-2913).
No. 6, No. 4-85535, No. 4-85536, No. 4
-85533, 4-85534, 4-1723
No. 41 etc. can be referred to. In the present invention, when a developer or a fixer is supplied as a tablet, the binder is disclosed in JP-A-7-295161 (23).
To pp. 30) (monosaccharides, polysaccharides in which a plurality of monosaccharides are linked to each other, and their decomposed products), and dextrins and sugar alcohols are particularly preferably used. There is little change in shape during long-term storage, and trouble during addition and usability are improved.

The solid processing agents include a lubricant as disclosed in
It is preferable to use acylated amino acids described in JP-A-92624 (pages 9 to 15). By this method, a solid processing agent can be stably produced without impairing the strength, the solubility is less deteriorated, and the storage stability and dust generation are improved. Organic sulfur compounds described in Japanese Patent Application No. 8-4764 (pages 19 to 21) are also preferable.

Examples of the solid treating agent include coating agents such as hydroxylamines, phenylcarboxylic acids,
It is preferable to use phenylsulfonic acids, alkyl (or alkenyl) carboxylic acids into which a hydroxyl group or a carboxyl group has been introduced, sulfites, water-soluble polymers (polyalkylene glycol, methacrylic acid type betaine-type polymer, etc.), and saccharides. The generation of fine powder is small, the deterioration of solubility is small, and excellent storability can be maintained and stable photographic performance can be maintained.

As the light-sensitive material used in the present invention, a light-sensitive material containing a silver halide emulsion produced by a known method can be used. For example, Research Disclosure (RD) 17643 (December, 1978) 22- 23
Page 1 “Emulsion Preparative Method (Emulsion Prepar)
nation and types) and (RD) 18
716 (November 1979) page 648.

Further, T.I. H. James "The th
eory of the photographic
process "4th edition, published by Macmillan (1
977) pp. 38-104; F. Da
"Photographic Emulsion Chemistry" by Uffin
ice emulation Chemistry ", Fo
cal press (1966); Glaf
"The Physics and Chemistry of Photography" by Kimides
t physique photographiqu
e "Paul Montel, Inc. (1967);
L. "Manufacture and coating of photographic emulsions" by Zelikman et al.
“Making and CoatingPhotog
raphic Emulsion "Focal pre
A silver halide emulsion prepared by a method described in ss Co., Ltd. (1964) or the like may be used.

Examples of preferably used silver halide emulsions include those described in JP-A-59-177535 and JP-A-61-8.
No. 02237, No. 61-132943, No. 63-49
No. 751 and JP-A-2-85846. Silver chlorobromide or silver chloride having a silver chloride content of 50 mol% or more is also preferable.

The crystal structure of silver halide is preferably a core / shell type monodispersed emulsion having a two-layer structure comprising a low iodine shell layer in a high iodine core portion. The silver iodide content of the high iodine part is 20 to 40 mol%, particularly preferably 20 to 30 mol%.

The silver halide emulsion preferably used is
Tabular grains having an average aspect ratio of greater than 1. The advantages of such tabular grains are known to provide improved spectral sensitization efficiency, improved image graininess and sharpness, and the like.

These emulsions can be prepared by using a cadmium salt, a lead salt, a zinc salt, a thallium salt, an iridium salt or a complex thereof, a rhodium salt or a complex salt thereof, an iron salt or a complex salt thereof at the stage of physical ripening or grain preparation. Good. The emulsion may be subjected to a water washing method such as a noodle washing method or a flocculation sedimentation method to remove soluble salts.

As a preferred washing method, for example,
A method using a sulfo group-containing aromatic hydrocarbon aldehyde resin described in JP-A-5-16086, or JP-A-63-15 / 1988.
A method using an aggregating polymer agent (exemplified G3, G8) described in No. 8644 and the like are mentioned as a particularly preferred desalting method.

As the method of chemical ripening of the silver halide emulsion, gold sensitization, sulfur sensitization, reduction sensitization, sensitization with a chalcogen compound, and a combination thereof are preferably used. Various photographic additives can be used in the emulsion before and after physical ripening or chemical ripening. In the emulsion, a hydrazine compound or a tetrazolium compound can be used as a high contrast agent. Further, a nucleation promoter can be used.

Other known additives to the emulsion include:
For example, (RD) 17643 (December 1978)
Pp. 23-29, 18716 (November 1979) 64
Pages 8 to 651 and 308119 (December 1989)
The compounds described on pages 996-1009 can be added.

Examples of the support that can be used for the light-sensitive material include RD17643, page 28 and RD3081.
19, page 1009.
A suitable support is a plastic film or the like, and the surface of these supports may be provided with an undercoat layer, or subjected to corona discharge, ultraviolet irradiation, or the like in order to improve the adhesion of the coating layer. Further, a crossover cut layer or an antistatic layer may be provided.

Emulsion layers may be present on both sides of the support.
Only one side may be used. In the case of both sides, both sides may have the same performance or different performances.

[0127]

Next, the present invention will be described with reference to examples, but the present invention is not limited to these examples.

Example 1 (Preparation of photosensitive material) <Preparation of emulsion EM-1> Solution A High methionine gelatin (59.7 g of methionine per g of gelatin) 30 g 4,5,6-triaminopyrimidine 100 g Sodium chloride 1054 g Bromide 68.7 g of sodium 6000 ml with distilled water Solution B 1135 g of silver nitrate 2000 ml with distilled water At 40 ° C., the pH of solution A in a reaction vessel having a mixing stirrer described in JP-B-58-58288 was adjusted to 5.6. 6 ml of B was added over 1 minute. The addition rate is linearly accelerated over an additional 55 minutes (from start to finish 9.
8 times), during which time the entire amount of solution B was added. After 5 and 18 minutes, 400 g of a 4M sodium chloride solution and 20 g
100 g of mM 4,5,6-triaminopyrimidine solution
Was added. During the addition of the above materials, the flow of silver was stopped for 1 minute and the additives were mixed homogeneously.

During this period, the pH was controlled to be constant by adding sodium hydroxide or nitric acid. After the addition,
Excess salts were precipitated and desalted by a conventional method.

When about 3000 particles of the obtained EM-1 were observed with an electron microscope, the aspect ratio was 15 (average equivalent circle diameter 1.80 μm, average thickness 0.12 μm),
Tabular silver chlorobromide grains containing 90 mol% of silver chloride.

<Preparation of photosensitive material> Emulsion EM-1 obtained
The following spectral sensitizing dyes (SD-1) and (SD
-2) was added at a weight ratio of 20: 1 to 400 mg per mol of silver halide.

SD-1: Anhydro-5,5'-dichloro-9-ethyl-3,3'-di- (3-sulfopropyl) oxacarbocyanine sodium salt SD-2: Anhydro-5,5'- Di- (butoxycarbonyl) -1,1'-diethyl-3,3'-di- (4-
Sulfobutyl) benzimidazolocarbocyanine sodium salt After 10 minutes, an appropriate amount of ammonium thiocyanate, chloroauric acid and sodium thiosulfate, and a dispersion of triphenylphosphine selenide were added, followed by chemical ripening. Forty minutes before the completion of ripening, a silver iodide fine grain emulsion of 0.06 μm was added in an amount of 6 × 10 ⁻⁴ mol per mol of silver, and then 4-hydroxy-6-methyl-1,3,3a, 7- as a stabilizer was added. Tetrazaindene (ST-1) was added in an amount of 3 × 10
^-2 mol was added and dispersed in an aqueous solution containing 70 g of gelatin.

Next, the following additives were added to this emulsion.
The amount of addition is shown in an amount per mole of silver halide.

1,1-Dimethylol-1-bromo-1-nitromethane 70 mg t-butylcatechol 400 mg polyvinylpyrrolidone (molecular weight 10,000) 1.0 g styrene-maleic anhydride copolymer 2.5 g nitrophenyl-triphenylphosphonium Chloride 50 mg Ammonium 1,3-dihydroxybenzene-4-sulfonate 4.0 g Sodium 2-mercaptobenzimidazole-5-sulfonate 15 mg 1-Phenyl-5-mercaptotetrazole 10 mg Trimethylolpropane 10 g C ₄ H ₉ OCH ₂ CH ( CH ₃ ) CH ₂ N (CH ₂ COOH) ₂ 1 g Compound A 60 mg Compound B 35 mg

[0135]

Embedded image

Further, 1.0 g of a dye emulsion dispersion shown below was prepared.
Was added to obtain an emulsion coating solution.

(Preparation of Dye Emulsion Dispersion) The following dye (F-
1) 10 kg was dissolved at 55 ° C. in a solvent consisting of 28 liters of tricresyl phosphate and 85 liters of ethyl acetate. This is called an oil-based solvent. On the other hand, 9.3 containing 1.35 kg of sodium tri-i-propylnaphthalenesulfonate (SU-1) which is an anionic surfactant is contained.
% Gelatin solution is referred to as an aqueous solvent.

Next, an oil-based solvent and an aqueous-based solvent were placed in a dispersion vessel and dispersed while maintaining the liquid temperature at 40 ° C. An appropriate amount of phenol and 1,1'-dimethylol-1-bromo-1-nitromethane was added to the obtained dispersion, and the mixture was made up to 240 kg with water to obtain a finished dye emulsion dispersion.

[0139]

Embedded image

The additives used in the protective layer are as follows. The amount of addition is indicated by the amount per liter of the coating solution.

(Coating solution for protective layer) Lime-treated inert gelatin 68 g Acid-treated gelatin 2 g Polymethyl methacrylate (matting agent having an average particle size of 5.0 μm) 1.1 g Silicon dioxide particles (matting agent having an average particle size of 3.0 μm) 0.5 g Ludox AM (Colloidal silica manufactured by DuPont) 30 g Glyoxal 40% aqueous solution (hardener) 1.5 ml (CH ₂ ＣＨCHSO ₂ CH ₂ ) ₂ O (hardener) 500 mg C ₁₂ H ₂₅ CONH (CH _{2) CH 2 O) 5 H 2.0g SU} -2 ( surfactant) 20mg SU-3 (surfactant) 7mg SU-4 _{(surfactant) 7mg C 12 H 25 CONH (} CH 2 CH 2 O) 6 H 62 mg DI-1 (antifungal agent) 0.9 mg

[0142]

Embedded image

A thickness of 175 μm colored blue with a concentration of 0.15
On both surfaces of the polyethylene terephthalate support of m, a coating solution prepared such that the coating amount per one surface was the following composition was applied to form an undercoat layer. The amount of addition is shown in the amount of application per 1 m ² .

(Coating solution for undercoat layer) Dye (F-2) 30 mg Gelatin 0.5 g p-nonylphenoxypolyethylene oxide (polymerization degree = 10) 6 mg 1-morphonylcarbonyl-3- (pyridinio) methanesulfonate 80 mg polymethyl Methacrylate (matting agent with an average particle size of 2.5 μm) 2 mg

[0145]

Embedded image

[0146] 0 The emulsion coating solution on a support which has been subjected to the undercoating 1.8 g / m ² on one surface per terms of silver value, 1.6 g / m ² as a weight with a gelatin protective layer as weight with gelatin.
The emulsion layer and the protective layer were simultaneously coated on both sides at a speed of 90 m / min with two slide hopper coaters so as to obtain 9 g / m ^2, and dried for 2 minutes and 30 seconds to obtain a sample.

(Preparation of Developing Solution and Fixing Solution) A developing solution and a fixing solution having the following compositions were prepared, and the storability of the film after the development processing was evaluated.

<Preparation of Development Concentrate> Developer-1 Diethylenetriaminepentaacetic acid 5 g Sodium sulfite 24 g Sodium carbonate monohydrate 87.5 g Potassium carbonate 97.5 g Sodium erythorbate 120 g N-acetyl-D, L-penicylamine 0.1 g 1-phenyl-4-methyl-4-hydroxymethyl-3-pyrazolidone 16.0 g 5-methylbenzotriazole 0.15 g Compounds Table 1 Glutaraldehyde (50 wt% aqueous solution) 8.0 g Water is added to make up to 1 liter. .

The pH is adjusted to 10.20 with KOH.

The working solution was prepared by adding 600 ml of water to 400 ml of the developing concentrated solution to make 1 liter of the working solution.
Let it be 1.

<Preparation of Fixing Concentrate> Fixing Solution-1 Ammonium thiosulfate (70 wt / vol%) 400 ml Sodium sulfite 40 g Boric acid 16 g β-alanine 36 g Glacial acetic acid 60 g Tartaric acid 5 g Aluminum sulfate 20 g General formulas (1) to (3) of the present invention ) And the compounds and disulfide compounds represented by (5) to (9) were added in the amounts shown in Table 1.

Next, water was added to make up to 1 liter,
Adjust the pH to 4.60 with aOH.

The preparation method of the working solution was as follows: 500 ml of water was added to 500 ml of the fixing concentrate to make 1 liter of the working solution, and the fixing solution-1
And

The film sample and developer obtained above,
A running process was performed using the fixing solution. The above developer
1. Put fixer-1 in automatic developing machine SRX-701
A running test was performed in the second mode under the following conditions. The developing temperature and the fixing temperature were both set to 35 ° C., and the prepared photographic light-sensitive material was exposed to an optical density of 1.0, and then exposed every day.
m ² , run for 3 weeks. The replenishment amounts of the developing solution and the fixing solution were adjusted to 150 ml per 1 m ² of the photographic material. The replenishing amount of the washing water was adjusted to 600 ml per m ² of the photographic light-sensitive material.

At the start of running, acetic acid was added to the developing tank of the automatic developing machine as a starter to adjust the pH of the developing solution to 10.0.
An amount that became 0 and an amount that made potassium bromide a concentration of 12.2 g / l were added to obtain a new solution.

<Evaluation of image preservability of processed film> The above-mentioned film developed and processed using an automatic developing machine running for 3 weeks under the above conditions was stored under the following conditions. After the film was exposed to an optical density of 1.0,
Developed.

Storage conditions: 60 g of a saturated aqueous solution of cobalt chloride (COCl ₂ .6H ₂ O) was placed in a sealable pressure vessel,
A petri dish containing pure water (14 ml) was placed, and the developed film was placed on a net plate so as not to come into contact with the above-mentioned aqueous solution of cobalt chloride. Close the lid and replace with oxygen until the internal oxygen concentration becomes 90 Vol% or more. The pressure in the container is set to 2.3 kgw / cm ^2, and the pressure is 65 ° C. (heating).
Stored sealed for years. The above storage film was visually evaluated on a Shakasten according to the following criteria.

4: No discoloration is observed 3: Discoloration is slightly observed 2: Discoloration is clearly observed 1: Discoloration is considerably observed The obtained results are shown in Table 1 below.

[0159]

[Table 1]

As is clear from the table, no discoloration of the silver image was observed in the sample of the present invention even when stored under severe conditions for a long time.

Example 2 Using the developing solution-1, the following fixing solution-2, and washing water-1, the photographic material prepared in Example 1 was evaluated for the preservability of the film after the development processing.

(Preparation of Fixing Solution-2) Ammonium thiosulfate (70 wt / vol%) 400 ml Sodium sulfite 40 g Boric acid 16 g β-alanine 36 g Glacial acetic acid 60 g Tartaric acid 5 g Aluminum sulfate 20 g Add water to make up to 1 liter. Adjust to 60.

The preparation method of the working solution was as follows. 500 ml of water was added to 500 ml of the fixing concentrate to make 1 liter of the working solution.
And

(Preparation of washing water-1) General formulas (1) to
(3) The compounds represented by (5) to (9) and the disulfide compound were added to the amounts shown in Table 2 below, and then made up to 1 liter with water to obtain washing water-1.

The film sample and developer obtained above,
Running was performed using a fixing solution and washing water.

Developer 1, Fixer 2, Rinse water-1
Was placed in an automatic developing machine SRX-701, and a running test was performed in the 30-second mode under the following conditions. SRX-70
1 was modified so that the washing tank could be refilled with the above washing water-1.

The developing temperature and the fixing temperature are both 35 ° C.
After the prepared photosensitive material was exposed to an optical density of 1.0, the photosensitive material was subjected to a running treatment at 5 m ² every day for 3 weeks. The replenishing amount of developer and fixer photosensitive material 1 m ² per 150ml
It was to become one by one. The replenishing amount of the washing water was adjusted to 600 ml per 1 m ² of the photographic material.

At the start of running, acetic acid was added to the developing tank of the automatic developing machine as a starter to adjust the pH of the developing solution to 10.0.
An amount that became 0 and an amount that made potassium bromide a concentration of 12.2 g / l were added to obtain a new solution.

<Evaluation of Image Preservability of Film after Processing> The film developed and processed in the same manner as in Example 1 was stored and visually evaluated. The results obtained are shown in Table 2 below.

[0170]

[Table 2]

As is clear from the table, no discoloration of the silver image was observed in the sample of the present invention even when stored under severe conditions for a long time.

[0172]

As demonstrated in the examples, according to the present invention, a silver image was not discolored even during long-term storage, and a stable image which did not hinder the image diagnosis of a medical photosensitive material could be obtained.

Claims (13)

[Claims] 1. A processing agent for a silver halide photographic light-sensitive material, characterized in that it contains at least one compound represented by the following general formula (1), which is used in a processing step after a fixing step. Processing agent for silver halide photographic materials. Embedded image In the formula, R ₁₁ and R ₁₅ each independently represent an alkyl group having 1 to 5 carbon atoms, a substituted alkyl group, an alkoxy group, a substituted alkoxy group, or a cyano group. R ₁₂ , R ₁₃ and R ₁₄ each independently represent a hydrogen atom, a carboxyl group, a sulfonic acid group, a sulfate group, or a C 1 -C 4 alkyl or alkenyl group substituted with a phosphate group. Where R ₁₂ and R
₁₃ and R ₁₄ are not hydrogen atoms at the same time. 2. A processing agent for a silver halide photographic light-sensitive material, characterized in that it contains at least one compound represented by the following general formula (2), which is used in a processing step after a fixing step. Processing agent for silver halide photographic materials. Embedded image In the formula, R ₂₁ , R ₂₃ , R ₂₅ and R ₂₆ each independently represent a hydrogen atom, a hydroxy group, a carboxyl group, an alkyl group,
Represents an aryl group, an alkoxy group, an aryloxy group, or a substituted alkyl group, a substituted aryl group, a substituted alkoxy group, a substituted aryloxy group, or a sugar residue. However,
R ₂₁ , R ₂₃ , R ₂₅ and R ₂₆ are not hydrogen atoms at the same time. R ₂₂ and R ₂₄ each independently represent a hydrogen atom, a halogen atom, a hydroxy group, a carboxyl group, an alkyl group, an aryl group, an alkoxy group, an aryloxy group, or a substituted alkyl group, a substituted aryl group, a substituted alkoxy group, Represents an aryloxy group or a sugar residue. 3. A processing agent for a silver halide photographic light-sensitive material, characterized in that it contains at least one compound represented by the following general formula (3), which is used in a processing step after a fixing step. Processing agent for silver halide photographic materials. Embedded image In the formula, R ₃₁ , R ₃₃ , R ₃₅ and R ₃₆ each independently represent a hydrogen atom, a hydroxy group, a carboxyl group, an alkyl group,
Represents an aryl group, an alkoxy group, an aryloxy group, or a substituted alkyl group, a substituted aryl group, a substituted alkoxy group, a substituted aryloxy group, or a sugar residue. However,
R ₃₁ , R ₃₃ , R ₃₅ and R ₃₆ are not hydrogen atoms at the same time. R ₃₂ and R ₃₄ each independently represent a hydrogen atom, a halogen atom, a hydroxy group, a carboxyl group, an alkyl group, an aryl group, an alkoxy group, an aryloxy group, or a substituted alkyl group, a substituted aryl group, a substituted alkoxy group, Represents an aryloxy group or a sugar residue. 4. A processing agent for a silver halide photographic light-sensitive material, characterized in that it contains at least one disulfide compound having a molecular weight of 500 to 5000, which is used in a processing step after a fixing step. Processing agent for photographic photosensitive materials. General formula (4) -SS- 5. A processing agent for a silver halide photographic light-sensitive material, characterized in that it contains at least one kind of a compound represented by the following general formula (5), which is used in a processing step after a fixing step. Processing agent for silver halide photographic materials. Formula (5) R ₅₁ -SR _{52 In the} formula, R ₅₁ and R ₅₂ each independently represent an alkyl group having 1 to 8 carbon atoms, a substituted alkyl group, an aryl group, a substituted aryl group, a heterocyclic compound, a substituted heterocyclic group. Represents a ring compound. 6. A processing agent for a silver halide photographic light-sensitive material, characterized in that it contains at least one compound represented by the following general formula (6), which is used in a processing step after a fixing step. Processing agent for silver halide photographic materials. Embedded image In the formula, R ₆₁ represents a hydrogen atom or a methyl group. R ₆₂ ,
R ₆₃ and R ₆₄ each independently represent a hydrogen atom, a carbon number of 1 to 3;
Represents an alkyl group or a carboxyl group. Where R ₆₂ and R
_{When 63} and R ₆₄ are alkyl groups, they may be substituted with a hydroxyl group, a carboxyl group or a sulfo group. 7. A compound represented by the general formula (6):
7. The processing agent for a silver halide photographic light-sensitive material according to claim 6, which is a compound represented by the following general formula (7). Embedded image In the formula, R ₇₁ and R ₇₂ each independently represent a hydrogen atom or a methyl group. M is a hydrogen atom, an alkali metal atom, an ammonium salt, and n is 0 or 1-2. However, R ₇₁ , R ₇₂
When either or both are methyl groups, -COOM;
It may be substituted by -OH. 8. The processing agent for a silver halide photographic light-sensitive material according to claim 6, wherein R ₆₁ in the general formula (6) is a hydrogen atom. 9. A processing agent for a silver halide photographic light-sensitive material, characterized in that it contains at least one kind of a compound represented by the following general formula (8), which is used in a processing step after a fixing step. Processing agent for silver halide photographic materials. Formula (8) MnHAO _{3 In the} formula, M represents a monovalent or divalent atom, n represents 2 when M is monovalent, and 1 when M is divalent. A is P,
Represents Sb and Bi. 10. A processing agent for a silver halide photographic light-sensitive material, characterized in that it contains at least one compound represented by the following general formula (9), which is used in a processing step after a fixing step. Processing agent for silver halide photographic materials. In the general formula (9) R ₉₁ -NHOH formula, R ₉₁ represents a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, an alkenyl group or an acyl group having 2 to 4 carbon atoms, the alkyl group, an alkenyl group, an acyl group May be substituted with a group selected from a hydroxyl group, a carboxyl group, an amino group, a nitro group, a sulfo group, a sulfate group or a salt thereof. 11. The processing agent for a silver halide photographic light-sensitive material according to claim 1, wherein the processing agent is a fixing solution. 12. The processing agent for a silver halide photographic light-sensitive material according to claim 1, wherein the processing agent is a stabilizing solution or washing water. 13. A method for processing a silver halide photographic light-sensitive material, wherein the processing agent according to claim 1 is used in a processing step after a fixing step.