JPH0566578B2 - - Google Patents

Description

[Detailed description of the invention]

[Industrial Field of Application] The present invention relates to a method for processing silver halide color photographic materials, and more specifically, to an effective processing method for silver halide color photographic materials that improves various processing performances in the bleaching process. It is about the method. [Prior Art] Generally, in order to obtain a color image by processing a silver halide color photographic light-sensitive material that has been imagewise exposed, after the color development step, it is treated with a processing solution that has the ability to bleach the produced metallic silver. A process is provided. Bleaching solutions and bleach-fixing solutions are known as processing solutions having bleaching ability. When a bleaching solution is used, a step of fixing the silver halide with a fixing agent is usually added after the bleaching step, but with a bleach-fixing solution, bleaching and fixing are performed in one step. Inorganic oxidizing agents such as red blood salts and dichromates are widely used as oxidizing agents for bleaching image silver in processing solutions that have bleaching ability in processing silver halide color photographic light-sensitive materials. . However, several serious drawbacks have been pointed out to processing solutions containing these inorganic oxidizing agents and having bleaching ability. For example, red blood salt and dichromate have relatively good bleaching power for image silver, but there is a risk that they will decompose when exposed to light and produce cyanide ions and hexavalent chromium ions that are harmful to the human body.
It has unfavorable properties in terms of pollution prevention. In addition, because these oxidizing agents have extremely strong oxidizing power, it is difficult to coexist with silver halide solubilizers such as thiosulfates in the same processing solution, and it is difficult to use these oxidizing agents in bleach-fixing baths. This makes it difficult to achieve the goal of speeding up and simplifying the process. Furthermore, processing liquids containing these inorganic oxidizing agents have the disadvantage that it is difficult to reuse the waste liquid after treatment without discarding it. On the other hand, metal complex salts of organic acids, such as aminopolycarboxylic acid metal complex salts, are used as oxidizing agents, as they have fewer pollution problems and meet the demands of speeding up and simplifying treatment, and enabling the reuse of waste liquids. In recent years, treatment solutions have come to be used. However, processing solutions using metal complex salts of organic acids have a slow oxidizing power, so they have the disadvantage that the bleaching rate (oxidation rate) of image silver (metallic silver) formed in the development process is slow. . For example, iron() complex salt of ethylenediaminetetraacetate, which is considered to have the strongest bleaching power among aminopolycarboxylic acid metal complex salts, has been put into practical use as a bleaching solution and a bleach-fixing solution in some places, but silver bromide, High-sensitivity silver halide color photographic materials based on silver iodobromide emulsions, especially color papers for photography, color negative films for photography, and color reversal films containing silver iodide as silver halide, have a high bleaching power. If insufficient, even after long-term processing, traces of image silver remain, resulting in poor desilvering performance. This tendency is particularly noticeable in bleach-fix solutions in which oxidizing agents and thiosulfates and sulfites coexist because the redox potential decreases. On the other hand, despite great efforts to develop bleaching accelerators to increase the silver bleaching power of bleaching solutions or bleach-fixing solutions containing metal complex salts of organic acids, satisfactory results have not yet been obtained. The reality is that it is not. The present inventors have discovered diethylenetriaminepentaacetic acid iron() complex salt as an oxidizing agent that has excellent oxidizing power particularly in a high pH range among aminopolycarboxylic acid metal complex salts. A bleaching solution and a bleach-fixing solution using diethylenetriaminepentaacetic acid iron() complex salt as an oxidizing agent have a pH of 4 or more, especially 7 or more, the silver bleaching reaction is rapid, and they have extremely excellent performance. On the other hand, in recent years, efforts have been made to reduce the number of processing steps in order to speed up processing and reduce the installation space of processing equipment, and in particular, after the color development step, the process is directly connected to the development step without going through a stop or washing step. Bleaching or bleach-fixing treatments have become common. One serious problem in such processing is that the color developing solution is brought directly into the bleach or fix solution when the photographic light-sensitive material is transported, and the developing agent is oxidized in the bleach or bleach-fix solution, producing tar. This tendency becomes especially strong when the amount of processing decreases and the update rate becomes low. In other words, in recent years, for the purpose of preventing environmental pollution and conserving resources, progress has been made in reducing replenishment processing in which the amount of replenishment required for each processing of a certain area of silver halide color photographic light-sensitive materials is as small as possible. In particular, there is a problem in that the mixing ratio of the color developing solution into the bleaching or bleach-fixing solution becomes high as mentioned above, and tar is likely to be generated. The generation of such tar causes problems such as tar adhesion to photographic light-sensitive materials, which not only significantly impairs the finishing quality of the photographic light-sensitive materials, but also especially in the case of photographic light-sensitive materials for photography, since enlarged prints are usually made. , even a small amount of tar often causes a serious problem. The generation of tar is significant in bleaching solutions, and the commonly used bleach-fixing solutions that use ethylenediaminetetraacetic acid iron () complex salt as the oxidizing agent have weak oxidizing power.
In addition, since sulfite used as a preservative for the fixing agent coexists, it generally does not occur easily, but it becomes a problem especially when the renewal rate is low and the mixing ratio of the color developer is high. Furthermore, it has become clear that tar generation is particularly significant in bleaching solutions and bleach-fixing solutions that use diethylenetriaminepentaacetic acid iron() complex salt as an oxidizing agent, and that tar is likely to be generated in bleach-fixing solutions as well. [Objective of the Invention] The object of the present invention is to provide a silver halide color photographic light-sensitive material that is free from troubles such as tar adhesion even when subjected to direct bleaching or bleach-fixing treatment after color development.
Another object of the present invention is to provide a method for processing a silver halide color photographic material that has an excellent desilvering speed. Still another object of the present invention is to provide a method for processing silver halide color photographic materials that is rapid and highly effective in conserving resources and preventing the environment. [Structure of the Invention] As a result of extensive research, the present inventors have found that the above-mentioned objects of the present invention have been achieved by producing a paraphenylene compound having at least one water-soluble group in the amino group after imagewise exposure of a silver halide color photographic light-sensitive material. It is developed with a color developer containing a diamine-based color developing agent, and then contains a diethylenetriaminepentaacetate iron () complex salt and at least one chelating agent selected from the following chelating agent group, and contains a diethylenetriaminepentaacetate iron () complex salt: The molar ratio of the chelating agent is 1:0.01
It has been found that this can be achieved by a method for processing a silver halide color photographic light-sensitive material, which is characterized in that processing is performed in conjunction with the development processing using a processing solution having a bleaching ability in the range of -0.5. [Chelating agent] Ethylenediaminetetraacetic acid trans-cyclohexanediaminetetraacetic acid diaminopropanoltetraacetic acidethylenediamine orthohydroxyphenylacetic acid glycol ether diaminetetraacetic aciddiaminopropanetetraacetic acidtriethylenetetraminehexaacetic acid That is, the present inventors have developed a color developing agent according to the present invention. When a color developing solution containing iron() complex salt of ethylenediaminetetraacetate is mixed with a bleaching solution or a bleach-fixing solution containing at least one kind of chelating agent according to the present invention and a complex salt of iron() of ethylenediaminetetraacetate, conventional iron() complex salt of ethylenediaminetetraacetate This is often caused when a color developer mixes into a bleach or bleach-fix solution that uses diethylenetriaminepentaacetate as an oxidizing agent, or when a color developer mixes into a bleach or bleach-fix solution that uses diethylenetriaminepentaacetic acid complex salt as an oxidizing agent. It was found that the generation of tar observed was significantly reduced. That is, the present inventors have discovered that the above objects of the present invention can be achieved by an effective combination of the treatment steps of the present invention. The diethylenetriaminepentaacetic acid iron() complex salt according to the present invention is a free acid (hydrogen salt), an alkali metal salt such as a sodium salt, a potassium salt, a lithium salt, or an ammonium salt, or a water-soluble amine salt such as a triethanolamine salt, etc. Potassium salts, sodium salts, and ammonium salts are preferably used, with ammonium salts being particularly preferred. At least one type of these iron() complex salts may be used, but two or more types can also be used in combination. The amount used can be arbitrarily selected and needs to be selected depending on the amount of silver and silver halide composition of the photosensitive material to be processed, but in general, its concentration is lower than that of other aminopolycarboxylic acid complex salts because of its high oxidizing power. Can be used in For example, use liquid 1
It can be used in an amount of 0.01 mol or more, preferably 0.05 mol or more. In addition, it is desirable to use the replenisher after concentrating it to maximize its solubility in order to achieve high concentration and low replenishment. The chelating agents according to the present invention are as follows. Ethylenediaminetetraacetic acid Trans-cyclohexanediaminetetraacetic acid diaminopropanoltetraacetic acid Ethylenediamine orthohydroxyphenylacetic acid Glycol ether diamine tetraacetic acid diaminopropanetetraacetic acid triethylenetetraminehexaacetic acid These chelating agents according to the present invention are used as free acids, alkali metal salts such as sodium salts, potassium salts, lithium salts, ammonium salts, or water-soluble amine salts such as triethanolamine salts. At least one type of these may be used, but two or more types can also be used in combination. The amount used is in the range of 0.01 mol to 0.5 mol per 1 mol of diethylenetriaminepentaacetic acid iron() complex salt. The color developing agent used in the present invention is a paraphenylenediamine color developing agent having at least one water-soluble group (hydrophilic group) on the amino group, and representative examples of these color developing agents include: Examples include the following compounds, but the present invention is not limited thereto. Particularly useful color developing agents that meet the objectives of the present invention include -( _CH2 ) _o - _CH2 as a substituent on the amino group.
OH, −(CH ₂ ) _n −NHSO ₂ −(CH ₂ ) _o −CH ₃ , −
(CH ₂ ) _n O−(CH ₂ ) _o −CH ₃ , −(CH ₂ CH ₂ O) _o
It is a compound having each group of (CH ₂ ) _n H, and specific compounds include (1), (2), (3), (4), and (6) of the above specific examples.
and (7). However, m and n are integers of 0 or more, preferably 0 to 5. Color developing solutions containing these color developing agents do not cause any trouble even when mixed into the bleach solution or bleach-fix solution according to the present invention, and do not generate tar even when mixed in 2% or more, and are effective in preventing tar generation. The effect becomes increasingly noticeable. The bleaching solution and bleach-fixing solution according to the present invention have a pH of 0.2.
to 9.5, preferably 4.0 or more, more preferably 5.0 or more, and most preferably
The PH range is 5.5 or more and 9.0 or less. Processing temperature is 80
It is used at temperatures below ℃, but preferably below 55℃ to prevent evaporation. The bleaching solution according to the present invention comprises a diethylenetriaminepentaacetic acid iron () complex salt as a bleaching agent as described above;
and a chelating agent, and may also contain various additives. As additives, in particular alkali halides or ammonium halides,
For example, it is desirable to contain potassium bromide, sodium bromide, sodium chloride, ammonium bromide, potassium iodide, sodium iodide, ammonium iodide, thiourea, and the like. In addition, PH buffers such as borates, oxalates, acetates, carbonates, and phosphates, solubilizers such as triethanolamine, alkylamines, polyethylene oxides, and chelates according to the present invention such as diethylenetriaminepentaacetic acid. A chelating agent other than the above agent can be added as appropriate. The bleach-fixing solution according to the present invention contains a diethylenetriaminepentaacetate iron () complex salt as a bleaching agent as described above, a chelating agent, and a silver halide fixing agent such as a thiosulfate, a thiocyanate, a thiourea, or a thioether. A liquid having a composition containing is applied. In addition, a bleach-fixing solution consisting of the bleaching agent of the present invention and the silver halide fixing agent described above, in which a small amount of a halogen compound such as potassium bromide is added, or conversely, a halogen compound such as potassium bromide or ammonium bromide may be used. It is also possible to use a bleach-fix solution having a composition in which a large amount of potassium bromide is added, or a special bleach-fix solution having a composition in combination with a large amount of a halogen compound such as potassium bromide. As the halogen compound mentioned above, in addition to potassium bromide, hydrochloric acid, hydrobromic acid, lithium bromide, sodium bromide, ammonium bromide, sodium iodide, potassium iodide, ammonium iodide, etc. can also be used. can. The silver halide fixing agent to be included in the bleach-fixing solution is a compound that reacts with silver halide to form a water-soluble complex salt, such as those used in normal fixing processing.
For example, thiosulfates such as potassium thiosulfate, sodium thiosulfate, ammonium thiosulfate, potassium thiocyanate, sodium thiocyanate,
Typical examples include thiocyanates such as ammonium thiocyanate, thioureas, thioethers, and high concentrations of bromides and iodides.
These fixing agents can be used in an amount of 5 g/or more, within the range that can be dissolved. The bleach-fix solution contains boric acid, borax, sodium hydroxide, potassium hydroxide,
PH buffering agents consisting of various salts such as sodium carbonate, potassium carbonate, sodium bicarbonate, potassium bicarbonate, acetic acid, sodium acetate, and ammonium hydroxide may be contained alone or in combination of two or more. Furthermore, various optical brighteners, antifoaming agents, or surfactants can be contained. In addition, preservatives such as hydroxylamine, hydrazine, sulfites, isomeric bisulfites, bisulfite adducts of aldehydes and ketone compounds, stabilizers such as nitroalcohol nitrates, solubilizers such as alkanolamines, organic amines, etc. The stain inhibitor, other additives, organic solvents such as methanol, dimethylformamide, dimethyl sulfoxide, etc., and chelating agents other than the chelating agent according to the present invention such as diethylenetriaminepentaacetic acid may be appropriately contained. In the present invention, "processing by connecting with a processing solution having bleaching ability after color development processing" means processing after color development processing with a processing bath having a bleaching action excluding a stop bath and washing with water, but with a small amount of washing water or with stop liquid
This does not exclude cases where rinsing is performed for less than 30 seconds. After bleaching and fixing (or bleach-fixing), stabilization treatment may be performed without washing with water, or washing with water may be performed and then stabilization treatment may be performed. In addition to the above steps, known auxiliary steps may be added as necessary, such as hardening, neutralization, black and white development, reversal, and washing with a small amount of water. A typical example of a preferred treatment method includes the following steps. (1) Color development → bleach-fix → water washing (2) color development → bleach-fix → small amount of water washing → water washing (3) color development → bleach-fix → water washing → stable (4) color development → bleach-fix → stable (5) color development → Washing with water → Bleach-fix → Washing with water (6) Color development → Stop → Bleach-fix → Wash with water (7) Color development → Bleach → Wash with water → Fix → Wash with water → Stable (8) Color development → Bleach → Fix → Wash with water → Stabilize (9) Color development → bleaching → washing with a small amount of water → fixing → washing with a small amount of water → washing with water → stabilization (10) Color development → washing with a small amount of water → bleaching → washing with a small amount of water → fixing → washing with a small amount of water → washing with water → stabilization (11) Color development → stop → bleaching → washing with a small amount of water → Fixing → Washing with a small amount of water → Washing with water → Stabilization (12) Black and white development → Washing with water → Reversal → Color development → Bleaching → Fixation → Washing with water → Stabilization (13) Pre-hardening → Neutralization → Black and white development → Stop → Color development →
Bleaching → Fixing → Washing → Stabilization The black-and-white developer used before processing with the processing solution having bleaching ability of the present invention is called a black-and-white first developer that is commonly used in processing color photographic materials. Alternatively, it is used for processing black-and-white photographic materials, and can contain various additives that are generally added to black-and-white developing solutions. Typical additives include developing agents such as 1-phenyl-3-pyrazolidone, metol and hydroquinone, preservatives such as sulfites, accelerators consisting of alkalis such as sodium hydroxide, sodium carbonate, potassium carbonate, etc. Potassium bromide, 2-
Examples include inorganic or organic inhibitors such as methylbenzimidazole and methylbenzthiazole, water softeners such as polyphosphates, and surface overdevelopment inhibitors consisting of trace amounts of iodides and mercapto compounds. The alkaline color developing solution used before the treatment with the processing solution having bleaching ability of the present invention is usually added to the color developing solution in addition to the paraphenylenediamine color developing agent of the present invention. Various ingredients, such as alkaline agents such as sodium hydroxide, sodium carbonate, potassium carbonate, alkali metal sulfites, alkali metal bisulfites, alkali metal thiocyanates, alkali metal halogen compounds, benzyl alcohol, diethylenetriaminepentaacetic acid, 1- Hydroxyethyldene-1,1
-Water softeners and thickeners such as diphosphonic acid may optionally be included. The pH value of this color developer is usually 7 or higher, most commonly about
10 to about 13. Silver halide emulsions that can be used in the silver halide color photographic light-sensitive materials that are the object of the present invention include silver chloride, silver bromide, silver iodide, silver chlorobromide, silver chloroiodide, silver iodobromide, and Any silver halide such as silver iodobromide or a mixture thereof may be used. Furthermore, as protective colloids for these silver halides, natural products such as gelatin, as well as various products obtained by synthesis can be used. The silver halide emulsion may contain conventional photographic additives such as stabilizers, sensitizers, hardeners, sensitizing dyes, and surfactants. The processing method of the present invention is applicable to silver halide color photographic materials such as color paper, color negative film, color positive film, color reversal film for slides, color reversal film for movies, color reversal film for TV, and reversal color paper. be able to. [Examples] Hereinafter, the details of the present invention will be explained with reference to Examples, but the embodiments of the present invention are not limited thereby. Example 1 A bleach-fix solution and a bleach solution were prepared as follows. [Bleach-fix solution (1)] Ethylenediaminetetraacetate iron() ammonium dihydrate 120g Ethylenediaminetetraacetate iron 15g Ammonium sulfite (40% solution) 20ml Ammonium thiosulfate (70% solution) 300ml Color developer 3ml Adjust pH to 7.2 with aqueous ammonia and add water to bring the total volume to 1. [Bleach-fix solution (2)] Ammonium diethylenetriaminepentaacetate 145g Ammonium sulfite (40% solution) 20ml Ammonium thiosulfate (70% solution) 300ml Color developer 3ml Adjust the pH to 7.2 with aqueous ammonia and add water. and set the total amount to 1. [Bleach-fix solution (3)] Sodium diethylenetriaminepentaacetate 140g Ammonium sulfite (40% solution) 20ml Ammonium thiosulfate (70% solution) 300ml Color developer 3ml Adjust the pH to 7.2 with aqueous ammonia and add water. and set the total amount to 1. [Bleach solution (1)] Ethylenediaminetetraacetic acid iron () ammonium dihydrate 120g Ethylenediaminetetraacetic acid 15g Ammonium bromide 150g Color developer 3ml Adjust the pH to 6.2 with aqueous ammonia, and add water to bring the total volume to 1. . [Bleach solution (2)] Ammonium diethylenetriaminepentaacetate 145g Ammonium bromide 150g Color developer 3ml Adjust the pH to 6.2 with aqueous ammonia, and add water to bring the total volume to 1. [Bleach solution (3)] Sodium diethylenetriaminepentaacetate 140g Ammonium bromide 150g Color developer 3ml Adjust the pH to 6.2 with aqueous ammonia, and add water to bring the total volume to 1. The bleach-fix solution and the color developing solution added to the bleach solution were prepared as follows. [Color developer]

[Table] To bleach-fix solution (1) and bleach-fix solution (1), add 10 g each of the various chelating agents shown in Table 1 to prepare bleach-fix solution Nos. 1 to 4. 2) and bleach-fix solution (2) with 10% each of the various chelating agents shown in Table 1.
g of the bleach-fixing solutions No. 5 to No. 14, and then adding 10 g each of the chelating agents listed in Table 1 to the bleach-fixing solution (3).
Bleach-fix solutions No. 15 and No. 16 were prepared. Next, bleaching solutions No. 1 to No. 16 shown in Table 1 were prepared from bleaching solutions (1), (2), and (3) in exactly the same manner. After each of these 16 types of bleaching solution and bleach-fixing solution was left overnight, 24 unexposed Sakura Color SR100 films (manufactured by Konishiroku Photo Industry Co., Ltd.) were processed in the next processing step. Processing step (1) (38℃) Processing time Color development 3 minutes 15 seconds Bleach fixing 3 minutes 15 seconds Washing with water 3 minutes 15 seconds Stability 1 minute 05 seconds Processing step (2) (38℃) Processing time Color development 3 minutes 15 seconds Bleaching 3 minutes 15 seconds Fixing 3 minutes 15 seconds Washing with water 3 minutes 15 seconds Stability 1 minute 05 seconds The bleach-fix solutions and bleaching solutions used here were No. 1 to No. 16 bleach-fix solutions and bleaching solutions. The color developing solution used was the same as that mixed in the bleach-fixing solution and the bleaching solution, and the stabilizing solution and fixing solution were prepared as follows. [Stabilizer] Formalin (37% aqueous solution) 2 ml Konidax [manufactured by Konishiroku Photo Industry Co., Ltd.] 5 ml Add water to make 1. [Fixer] Ammonium thiosulfate (70% solution) 120ml Ammonium sulfite (40% solution) 25ml Adjust the pH to 6.5 with ammonia water, and add water to bring the total volume to 1. For each bleach-fixer and bleaching solution, 10 films were processed in an unexposed state, and then 0.1 cm ²
The number of spots caused by the above tar was counted and the results are shown in Table 1. The bleach-fix solutions and bleach solutions No. 1 to No. 4 using EDTA/FeNH ₄ as bleaching agents have relatively little tar, but there is no change even with the addition of a chelating agent. On the other hand, in bleach-fix solutions and bleaching solutions using DTPA/Fe(NH ₄ ) ₂ as a bleaching agent, no chelating agent was added (No. 5) and when a comparative chelating agent other than the present invention was added ( No. 6 and No. 7),
Although there is more tar than in the bleach-fix solution and bleaching solution using EDTA/FeNH ₄ as a bleaching agent, it can be seen that when the chelating agent of the present invention is added (No. 8 to No. 14), tar is significantly reduced. In addition, in the case of bleach-fix solutions and bleaching solutions (No. 15 and No. 16) that use DTPA/FeNaH as a bleaching agent,
Slightly inferior results were obtained compared to DTPA/Fe(NH ₄ ) ₂ .

[Table] Example 2 A bleach-fix solution was prepared as follows. [Bleach-fix solution (1)] Ammonium diethylenetriaminepentaacetic acid () 150g Ammonium sulfite (40% solution) 20ml Ammonium thiosulfate (70% solution) 300ml Diethylenetriaminepentaacetic acid 5g Color developer Table 2 Amounts listed in Aqueous ammonia to pH 7.2 Adjust to 1 and add water to bring the total volume to 1. [Bleach-fix solution (2)] Ammonium diethylenetriaminepentaacetate 150g Ammonium sulfite (40% solution) 20ml Ammonium thiosulfate (70% solution) 300ml Diethylenetriaminepentaacetic acid 5g Ethylenediaminetetraacetic acid 5g Color developer Table 2 Amounts listed in Ammonia water Adjust the pH to 7.2 and add water to bring the total volume to 1. The molar ratio of iron()ammonium diethylenetriaminepentaacetate:ethylenediaminetetraacetic acid is 1:0.053. The color developer mixed in bleach-fix solutions (1) and (2) was the same as that used in Example 1.
The type of color developing agent and the amount of color developer mixed are as shown in Table 2. Bleach-fix solutions Nos. 1 to 6 in Table 2 were prepared from bleach-fix solution (1), and bleach-fix solutions Nos. 7 to 12 in Table 2 were prepared from bleach-fix solution (2). Among the color developing agents shown in Table 2, Comparisons (1), (2), and (3) are the color developing agents shown below. comparison (1) comparison (2) comparison (3) These bleach-fix solutions were evaluated for tar under the same conditions as in Example 1. However, the color developer used in the processing was the same as that mixed in the bleach-fix solution, and the stabilizer used the same formulation as in Example 1. As is clear from the results shown in Table 2, only Nos. 10, 11, and 12, in which ethylenediaminetetraacetic acid was added and the color developing agent of the present invention was mixed, showed a significant reduction in tar ga. It can be seen that when the mixing rate of the color developer is 2% or more, the tar suppression effect is particularly strong. Note that experiments were also conducted with other chelating agents of the present invention, and almost the same results were obtained.

【table】

[Table] Example 3 Using the bleach-fix solution (2) used in Example 1, the amount of diaminopropanetetraacetic acid added was changed.
Bleach-fix solutions No. 1 to No. 11 shown in Example 3 were prepared, and the generation of tar was evaluated under the same conditions as in Example 1. The results are shown in Table 3. As is clear from Table 3, tar generation is suppressed by adding 0.01 times or more of diaminopropanetetraacetic acid to iron()ammonium diethylenetriaminepentaacetate, and especially when adding less than 1.0 times, a remarkable suppressing effect can be obtained. I understand that. Note that experiments were also conducted with other chelating agents of the present invention, and almost the same effects were obtained.

【table】

【table】

Claims (1)

[Scope of Claims] 1 After imagewise exposure of a silver halide color photographic light-sensitive material, it is developed with a color developer containing a paraphenylenediamine color developing agent having at least one water-soluble group in an amino group, and then diethylenetriamine. Bleaching ability containing an iron pentaacetate complex salt and at least one chelating agent selected from the group of chelating agents below, and in which the molar ratio of diethylenetriamine iron pentaacetate complex salt to the chelating agent is in the range of 1:0.01 to 0.5. 1. A method for processing a silver halide color photographic light-sensitive material, which comprises processing a silver halide color photographic light-sensitive material in conjunction with the development step using a processing solution having the following. [Chelating agent] Ethylenediaminetetraacetic acid trans-cyclohexanediaminetetraacetic acid diaminopropanol tetraacetic acid ethylenediamine diorthohydroxyphenyl acetic acid glycol ether diamine tetraacetic acid diaminopropane tetraacetic acid triethylenetetramine hexaacetic acid