JPH0895209A - Photographic development processing method - Google Patents

Abstract

PURPOSE: To efficiently prevent occurrence of silver stains due to silver sludge and stains on the rollers and belts of an automatic developing machine by filtering a developing solution with a filter material containing palladium sulfide as physical development nuclei. CONSTITUTION: The developing solution is filtered with the filter material composed of at least one of a cellulose and/or its derivative containing the physical development nuclei prepared by using an anionic surfactant and the palladium sulfide in a process for processing a silver halide photographic sensitive material with a developing solution containing a sulfite or before or after this process, and this filter material containing the physical development nuclei is prepared by immersing the filter material into the colloidal solution of the palladium sulfide having the anionic surfactant added, or bringing the filter material into contact with the reactant solution at the time of preparing this colloidal solution, and filter material containing the physical development nuclei has these nuclei adsorbed into the filaments of the filter material, and these adsorbed nuclei are not easily desorbed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for developing and processing a silver halide photographic light-sensitive material, and more particularly to a filter material for preventing silver sludge in a developing solution and a method for preventing silver sludge using the same.

[0002]

2. Description of the Related Art Generally, it is well known that a developer used for developing a silver halide photographic light-sensitive material contains a sulfite for the purpose of enhancing the storage stability of the developer. In some cases, a developing solution containing a compound having a strong dissolving action for silver halide such as thiosulfate such as a developing solution for silver salt diffusion transfer or a one-bath developing / fixing solution is also used.

When a photosensitive material is treated with a developing solution containing a compound having a dissolving effect on silver halides such as sulfite and thiosulfate, a large amount of silver complex is eluted into the developing solution, and the eluted silver complex is dissolved. Is easily reduced and accumulated as silver sludge. In particular, when continuously processing the photosensitive material using an automatic processor, not only the silver sludge floats but also adheres to the rollers and belts, which causes the light-sensitive material called silver streaks called roller streaks on the photosensitive material. As a result, yellow or brown stains are generated due to the precipitated silver.

As an agent for preventing silver sludge and liquid stain, 2-
Mercapto-1,3,4-thiadiazoles (British Patent No. 940,169), 2-mercapto-1,3,4
-Oxadiazoles or 1-phenyl-5-mercaptotetrazole (US Pat. No. 3,173,789), D, L-6,8-dithiooctanoic acid (US Pat. No. 3,318,701) ), O-mercaptobenzoic acid (UK Patent No. 1,144,481), aliphatic mercaptocarboxylic acid (US Pat. No. 3,628,955), L-thiazolidine-4-carboxylic acid (J. .Ph
otogr. Sci. , 13 , 233 (1965)),
Disulfide compound (JP-A-52-36029), 2-benzoxazolethiol, 2-benzimidazolethiol (Photogr. Sci. En.
g. , 20 , 220 (1976)), acetylene glycols (JP-A-55-95947), 2-mercaptobenzothiazole-5-sulfonic acid (JP-A-56).
-72441 specification), 2-mercaptobenzimidazole-5-sulfonic acid (JP-A-60-258537 specification) and the like are known.

However, these compounds have been used as an anti-sludge agent in a developing solution having a dissolving effect on silver halide, particularly in a developing solution containing a high concentration of sulfite (for example, 0.3 mol / L or more). In this case, the sludge prevention effect is lost due to air oxidation, the sludge prevention effect is weak and a large amount of it is necessary to be used, desensitization, softening, adverse effect on photographic characteristics such as development inhibition, and other expensive, There is a problem that it is difficult to say that it is sufficiently satisfactory because it has an unpleasant odor.

Further, in JP-A-64-50047, a cleaning film characterized by having a hydrophilic colloid layer containing an organic compound capable of adsorbing silver ions or metallic silver on a film support is disclosed as a silver halide photosensitive film. A method of preventing silver sludge by contacting a developer containing a silver complex eluted by treating the material is described. The present invention is characterized by using an organic compound capable of adsorbing metal ions or metallic silver, but this organic compound has a drawback that the cost of the compound increases due to many synthesis steps or difficulty.

US Pat. No. 5,210,009 discloses a method in which a sheet having a hydrophilic colloid layer containing physical development nuclei on the surface is formed into a roll having a gap and a developer is passed through the gap to recover silver. U.S. Pat. No. 5,310,62
No. 9 describes a filter material containing a physical development nucleus in the hydrophilic colloid layer, but the recovery efficiency of silver is low due to the clogging of gelatin used as the hydrophilic colloid layer, which is not sufficient. .

On the other hand, JP-A-3-273235 describes a filter medium containing physical development nuclei, and JP-A-3-273236 describes a cleaning film and a cleaning paper having a hydrophilic colloid layer containing physical development nuclei. These are obtained by filtering a developing solution in which silver ions or a silver complex is present with the above filter medium or contacting the above cleaning film or cleaning paper with
This is a method of preventing silver sludge by precipitating silver ions or silver complexes in a developing solution as metallic silver on the physical development nuclei by physical development to reduce the concentration of silver ions or silver complexes in the developing solution. These methods are effective as a method for preventing sludge without the deterioration of photographic characteristics when using the above-mentioned sludge-preventing agent and the adverse effects of high cost. The filter medium used in this method is regularly replaced, and the replacement filter medium may be stored for a long period of time. However, the above method is not sufficiently satisfactory in the storage stability of the filter medium having physical development nuclei, and the silver ion in the developer can be efficiently removed by using the filter medium containing the physical development nuclei having better storage stability. There is a need to capture and prevent silver sludge generation.

[0009]

Therefore, a first object of the present invention is to improve the method for preventing silver sludge using a filter medium containing physical development nuclei described in JP-A-3-273235 to improve the storage stability. To provide a filter medium containing physical development nuclei that has good properties and is capable of efficiently capturing silver ions in a developing solution. The second purpose is to use this silver sludge prevention method to obtain a photograph with excellent finished quality. It is an object of the present invention to provide a method for processing a silver halide photographic light-sensitive material capable of obtaining an image.

[0010]

Means for Solving the Problems As a result of extensive studies made by the present inventors, as a method for more efficiently implementing the silver sludge prevention method described in JP-A-3-273235, anion A silver halide photographic light-sensitive material is treated with a developer containing a sulfite with a filter medium composed of at least one cellulose and / or a derivative thereof containing a physical development nucleus prepared with a surfactant and palladium sulfide. It was found that the object of the present invention can be achieved by filtering the developing solution through the filter medium during and before and after the step.

As generally known physical development nuclei, known physical development nuclei used for diffusion image receiving materials, for example, gold,
Metals such as silver, platinum, nickel, palladium, cobalt, copper, zinc, cadmium, lead and iron and their sulfides (for example, silver sulfide, nickel sulfide, cobalt sulfide, copper sulfide, palladium sulfide, zinc sulfide, cadmium sulfide, Lead sulfide, iron sulfide and / or mixtures thereof) and selenium compounds.

However, among the many physical development nuclei described above, the filter medium of the present invention containing the physical development nuclei prepared with an anionic surfactant and palladium sulfide is particularly excellent in storage stability and develops with sulfite. It was found that the silver ions or silver complex eluted in the solution can be efficiently deposited as metallic silver on the physical development nuclei in the filter medium, resulting in a very good effect in preventing the generation of silver sludge. .

The anionic surfactant is a substance that dissociates ions in an aqueous solution and the anion portion exhibits surface activity.
As the anionic surfactant used in the present invention, a carboxylic acid type aliphatic monocarboxylic acid salt (sodium laurate), N-acryloyl glutamate (sodium lauroyl glutamate), a sulfonic acid type alkylbenzene sulfonate ( Sodium dodecylbenzene sulfonate), Dialkyl sulfosuccinate (Ae
Rosol OT), sulfate ester type alkyl sulfate salt (sodium dodecyl sulfate) and the like, which are commercially available, can be used.

The method for producing a filter material containing physical development nuclei used in the present invention is as follows: the filter medium is immersed in a colloidal solution of palladium sulfide to which an anionic surfactant is added, or the reaction is carried out when the colloidal solution is prepared. The filter medium may be kept in contact with the reaction solution.

Generally, fibrous cellulose, nitrocellulose, cellulose acetate, cotton, polyether sulfone, glass fiber, polypropylene, polyester, tetrafluoroethylene resin, rayon and the like are used as the raw material of the filter medium.

The filter medium containing physical development nuclei prepared with the anionic surfactant and palladium sulfide used in the present invention is at least one cellulose compound such as cellulose, cellulose derivative and cotton among the above materials. When used as a filter medium, silver ions or silver complexes eluted in a developer containing sulfite can be efficiently deposited as metallic silver, resulting in a very good effect in preventing silver sludge generation. Found to give.

Many types of filter media composed of the cellulose compound used in the present invention are commercially available from Toyo Roshi Kaisha, Ltd. and Cuno Co., Ltd., and commercially available products can be used.

The filter medium containing physical development nuclei used in the present invention is obtained by adsorbing physical development nuclei in the fibers of the above-mentioned filter medium, and the adsorbed physical development nuclei are not easily desorbed. Therefore, the filter material containing physical development nuclei used in the present invention does not elute or diffuse into the developer even when it is brought into contact with the developer, and does not change the photographic characteristics of the light-sensitive material to be processed. .

The shape of the filter medium used in the present invention is cylindrical,
It may be any of sheet type, pleated type and wind type.

The filter material used in the present invention exerts its effect by immersing it in a developing solution (so-called developing solution in which silver ions and a silver complex are present) treated with a silver halide photosensitive material, but it is more effective. The effect is enhanced by passing the developing solution through the filter material, that is, by filtering. Therefore, a preferred embodiment of the present invention is that the filter medium is mounted by using an automatic processor, and the developer is continuously circulated using a small pump before, during or after the processing of the silver halide light-sensitive material. Is to filter.

The photographic light-sensitive material to which the processing method of the present invention is applied is not particularly limited, and generally-used light-sensitive materials such as light-sensitive material for light room, scanner light-sensitive material, general RAS light-sensitive material, and silver halide light-sensitive material for direct positive. Etc.

The developing solution used in the present invention is a conventional photographic developing agent such as hydroquinone, alkylhydroquinone (eg t-butylhydroquinone, methylhydroquinone, dimethylhydroquinone), catechol, pyrazole, chlorohydroquinone, dichlorohydroquinone, alkoxyhydroquinone. (Eg methoxy or ethoxy hydroquinone), aminophenol developing agents (eg N-methyl-p-aminophenol, 2,4-
Diaminophenol), ascorbic acid developing agent, N-
Methyl-p-aminophenol sulphate, pyrazolones (eg 4-aminopyrazolone), 3-pyrazolidone developing agents (eg 1-phenyl-3-pyrazolidone,
1-phenyl-4,4-dimethyl-3-pyrazolidone,
1-phenyl-5-methyl-3-pyrazolidone, 1-phenyl-4-methyl-3-pyrazolidone, 1,5-diphenyl-3-pyrazolidone, 1-p-tolyl-3-pyrazolidone, 1-phenyl-2- Acetyl-4,4-dimethyl-3-pyrazolidone, 1-p-hydroxyphenyl-4,4-dimethyl-3-pyrazolidone, 1- (2-benzothiazolyl) -3-pyrazolidone, 3-acetoxy-1-phenyl-3. -Pyrazolidone) and the like. Particularly, a combination of hydroquinone and 3-pyrazolidones or hydroquinone and aminophenols is useful for high temperature and rapid treatment. However, a so-called activator type developer which does not substantially contain a developing agent may be used.

When the developer used in the present invention contains a large amount of sulfite ions, the sludge preventing effect is particularly remarkable. Specific examples of sulfites that give sulfite ions include sodium sulfite, potassium sulfite, and
Alkali metal sulfites such as potassium metabisulfite can be used.

The silver sludge generated in the developing solution is particularly liable to deposit on the roller or belt in the developing machine, and the silver sludge attached to the roller or belt is likely to contaminate the photosensitive material. Therefore, the present invention is particularly effectively used when processing with an automatic processor.

Examples of such automatic developing machine include P-710 automatic developing machine manufactured by Mitsubishi Paper Mills Ltd., LD281Q, LD360, LD381, L manufactured by Dainippon Screen Mfg. Co., Ltd.
D480Q, FG680A manufactured by Fuji Photo Film Co., Ltd.,
There are FG950A, FG710A, etc., and the filter medium of the present invention may be attached to these automatic processors.

In the developing solution, if necessary, a buffering agent (eg, carbonate, boric acid, borate, alkanolamine), an alkaline agent (eg, hydroxide, carbonate), a solubilizing agent (polyethylene glycols, these) Ester), a pH adjuster (for example, an organic acid such as acetic acid), a sensitizer (for example, a quaternary ammonium salt), a development accelerator, a surfactant, a hardener and the like.

2-Mercapto-1,3,4-thiadiazoles as a silver sludge inhibitor in a developing solution (British Patent No. 9
No. 40169), 2-mercapto-1,3,4-
Oxadiazoles or 1-phenyl-5-mercaptotetrazole (US Pat. No. 3,173,789), D, L-6,8-dithiooctanoic acid (US Pat. No. 3,318,701) ), O-mercaptobenzoic acid (British Patent No. 1,144,481), and aliphatic mercaptocarboxylic acid (US Pat. No. 3,628,95).
5), L-thiazolidine-4-carboxylic acid (J. Photogr. Sci., 13 , 233 (19).
65)), a disulfide compound (JP-A-52-3602).
No. 9), 2-benzoxazolethiol, 2-
Benzimidazole thiol (Photogr. Sc
i. Eng. , 20 , 220 (1976)), acetylene glycols (JP-A-55-95947),
2-Mercaptobenzothiazole-5-sulfonic acid (JP-A-56-72441), JP-A-56-243
47, 57-99641, 59-79250, 60-2
The anti-sludge agent described in 58537 may be included.

An antifoggant (for example, 5
-Nitroindazole, 5-nitro-benzimidazole, 5-methyl-benzotriazole, benzotriazole such as 5-nitrobenzotriazole, benzothiazole, tetrazole such as 1-phenyl-5-mercapto-tetrazole, thiazole or British Patent No. 1,2
69, 268) and chelating agents (eg ethylenediaminetetraacetic acid, alkali metal salts thereof, polyphosphate salts, nitriloacetate salts).

The pH value of the developer thus adjusted is selected to an extent sufficient to give the desired density and contrast, but it is preferably in the range of about 8-12.

The development processing temperature and time of the light-sensitive material are interrelated and determined in relation to the total processing time, generally 10 seconds to 3 minutes at about 20 to 50 ° C., but in the case of high speed and rapid processing. Is a temperature of about 30-60 ° C.

The fixing solution is an aqueous solution containing thiosulfate and a water-soluble aluminum compound, and preferably has a pH of about 3.8.
It has a temperature of 5.5 (20 ° C). In the method of the present invention, a stopping step may be provided after the development, but the stopping step is generally omitted in a roller-conveying type automatic developing machine. Therefore, the developing solution is brought into the fixing solution, and the pH of the fixing solution rises. Therefore, the pH of the fixer is about 3.8.
It is desirable to adjust to ~ 5.0 (20 ° C).

The fixing agent is a thiosulfate such as ammonium thiosulfate and sodium thiosulfate, and ammonium thiosulfate is particularly preferable from the viewpoint of fixing speed. The amount of the fixing agent used can be appropriately changed and is generally about 0.1 to 5 mol /
It is L.

The water-soluble aluminum salt, which mainly acts as a hardening agent in the fixing solution, is a compound generally known as a hardening agent for an acidic hardening fixing solution, and examples thereof include aluminum chloride, aluminum sulfate and potassium alum. is there.

According to the method of the present invention, the developed and fixed photographic material is washed and dried. Washing with water is carried out in order to almost completely remove the silver salt dissolved by fixing, and the washing is carried out for about 5 to 50
The temperature is preferably 10 seconds to 3 minutes. Drying is performed at about 30 to 80 ° C., and the drying time may be appropriately changed depending on the ambient conditions, but is usually about 5 seconds to 3 minutes and 30 seconds.

[0035]

The present invention will be described in more detail with reference to the following examples, but it goes without saying that the invention is not limited thereto.

Example 1 A filter medium containing physical development nuclei was prepared as follows. (1) Filter medium containing palladium sulfide physical development nuclei (a) Liquid A 5% sodium sulfide aqueous solution 27.4 ml Table 1 Exemplified compound 1% aqueous solution 2 ml Water 164 ml Liquid B 5% palladium chloride aqueous solution 6.6 ml Liquid A at 40 ° C Solution B at 40 ° C. is added to the mixture under vigorous stirring, and stirring is continued for 5 minutes to prepare a nuclear solution. Cellulose type No. manufactured by Toyo Roshi Kaisha, Ltd. 60 filters (50m
mφ) is attached to a funnel, and the prepared nuclear liquid is brought into filter contact with this filter paper. The filter is taken out, washed with running water for 1 hour or more and dried.

[0037]

[Table 1]

(2) Filter Material Containing Silver Sulfide Physical Development Nuclei (b) Liquids A and B of (1) were replaced with the following, and the procedure was the same as that of (1). Solution A 5% sodium sulfide aqueous solution 27.5 ml Table 1 Exemplified compound 1% aqueous solution 2 ml Water 158 ml Solution B 5% silver nitrate aqueous solution 12.5 ml

(3) Filter Material Containing Nickel Sulfide Physical Development Nuclei (c) Liquids A and B of (1) were replaced with the following, and the procedure was the same as in (1). A liquid 5% sodium sulfide aqueous solution 27.8 ml Table 1 Exemplified compound 1% aqueous solution 2 ml water 158 ml B liquid 2% nickel sulfate aqueous solution 14.2 ml

(4) Filter Material Containing Reduced Palladium Physical Development Nuclei (d) The liquids A and B of (1) were replaced with the followings, and the procedure was the same as that of (1). Solution A 5% palladium chloride aqueous solution 6.6 ml Table 1 Exemplified compound 1% aqueous solution 2 ml Water 183 ml Solution B 2% sodium borohydride aqueous solution 8.4 ml

(5) Filter Material Containing Reduced Silver Physical Development Nuclei (e) The liquids A and B of (1) were replaced with the following, and the operation was performed in exactly the same manner as (1). Solution A 5% aqueous silver nitrate solution 12.5 ml Table 1 Exemplified compound 1% aqueous solution 2 ml Water 177 ml Solution B 2% sodium borohydride aqueous solution 8.5 ml

The filter media (a) to (e) prepared above were stored under the conditions of 35 ° C. and 50% RH (percent relative humidity) for 1 month and 50 ° C. and 80% RH for 1 week.

The following developers were prepared. Developer (a) EDTA Disodium tetraacetate 2 g Hydroquinone 24 g 1-Phenyl-3-pyrazolidone 0.2 g Potassium sulfite 100 g Potassium bromide 3.0 g Triethylene glycol 4.3 g 5-Methylbenzotriazole 0.05 g Sodium hydroxide 12 g Potassium hydroxide 3.0 g Water is added to make 1 L. pH 11.5

Fixing solution Ammonium thiosulfate 200.0 g Sodium sulfite (anhydrous) 20.0 g Boric acid 8.0 g Sodium ethylenediaminetetraacetate 0.1 g Aluminum sulfate 15.0 g Sulfuric acid 2.0 g Glacial acetic acid 22.0 g Water is added to make 1 L. . The pH is adjusted to 4.2.

12 L of the developing solution and the fixing solution are added to the roller-conveying type automatic developing machine (LD221Q, manufactured by Dainippon Screen).
Was placed in each tank.

An unexposed bright room film having a silver chloride emulsion layer on polyethylene terephthalate (silver amount: 5 g / m ²
12 sheets having an average particle size of 120 mμ) having a size of 50.8 cm × 61 cm were processed by the above automatic developing machine at a developing temperature of 38 ° C., a developing time of 20 seconds and without replenishment to prepare a dissolved silver-containing developer.

Using the physical development nuclei-containing filters (a) to (e) stored under the respective conditions, 500 ml of the above-described dissolved silver-containing developer was repeatedly subjected to 20 filtration contact treatments.
The silver concentration before and after the treatment was measured with an atomic absorption spectrophotometer, and the ability of each filter to remove dissolved silver in the developer by physical development was examined.

Table 2 shows the results of the dissolved silver removal test according to the difference in storage of the physical development nuclei containing filter. In Table 2, storage condition A is 1 day storage at room temperature immediately after filter preparation, B
Is 35 ° C, 50% RH for 1 month, C is 50 ° C, 80%
RH means one week. The desilvering ratio is a relative ratio after the treatment is 100% when all the dissolved silver in the developing solution before the treatment is removed. The state of sludge generation means the state of the developing solution after 5 days of processing, ◯ means no silver sludge generation, and × means silver sludge generation.

[0049]

[Table 2]

From the results shown in Table 2, it can be seen that the physical development nucleus filter of the present invention has excellent storage stability, efficiently captures silver ions or silver complexes, and exerts a good effect in preventing silver sludge generation.

Example 2 (1) Filter Material Containing Palladium Sulfide Physical Development Nucleus (A) Solution A 1% Sodium Sulfide Aqueous Solution 300 ml Table 1 Exemplified Compound 1% Aqueous Solution 30 ml Water 1670 ml B Solution 0.1% Palladium Chloride Aqueous Solution 1000 ml 40 Solution B at 40 ° C. is added to solution A at 40 ° C. with vigorous stirring, and stirring is continued for 5 minutes to prepare a nuclear solution. Toyo Filter Paper Co., Ltd.'s wind cartridge filter (TCW-25-CSS) made of cotton is used for the company's housing (1P
It is attached to C), a magnetic pump is connected to this, and the prepared nuclear solution is circulated for 10 minutes. The filter is taken out, washed with running water for 1 hour or more, and washed with water until the sodium sulfide in the running water is completely removed, and then dried.

(2) Filter Material (B) Containing Silver Sulfide Physical Development Nucleus The following Solution C was used instead of Solution B in (1). Solution C 0.5% silver nitrate aqueous solution 300 ml water 700 ml The procedure was exactly the same as in (1).

(3) Filter material containing palladium sulfide physical development nuclei (C) A pleated cartridge filter (TC-3) manufactured by Toyo Roshi Kaisha, Ltd. in which the filter of (1) is composed of cellulose.
Instead of 0), the operation was the same as in (1).

(4) Filter material (D) containing silver sulfide physical development nuclei A pleated cartridge filter (TC-3 manufactured by Toyo Roshi Kaisha, Ltd.) in which the filter of (2) is composed of cellulose.
Instead of 0), the procedure was exactly the same as in (2).

(3) Filter Material (E) Containing Palladium Sulfide Physical Development Nuclei Wind filter cartridge (TC manufactured by Toyo Roshi Kaisha, Ltd.) in which the filter of (1) is made of polypropylene
The operation was the same as in (1) instead of W-25-PPS.

The filter media (A) to (E) prepared above were stored at 35 ° C. and 50% RH (percent relative humidity) for 1 month.

Immediately after the preparation of the physical development nucleus-containing filter (A) in the housing of two roller-conveying type automatic processors (LD281Q, manufactured by Dainippon Screen), and 35
Those stored for 1 month at 50 ° C and 50% RH were mounted, and 25 L of the developing solution and 22 L of the fixing solution described in Example 1 were placed in the respective tanks.

After imagewise exposing the bright room film described in Example 1, the developing temperature was 38 ° C. and the developing time was 2 using the above automatic developing machine.
Under the condition of 0 seconds, 200 sheets of 50.8 cm × 61 cm size film were processed per day for 5 days, and the occurrence of stains on silver sludge and photosensitive material was observed. Note that the processing in the developer 320 ml / m ^2, the fixing solution was conducted and the area replenishment at a rate of 380 ml / m ^2.

Physical development nuclei-containing filters (B) to (E)
Was tested in the same manner as in the case of the physical development nucleus filter (A).

Table 3 shows the results of the generation status of silver sludge. In Table 3, ∘ indicates a level at which practically no sludge is generated in the developing tank and there is no problem in practical use, Δ indicates a level at which a small amount of precipitate is generated at the bottom of the developing tank but the film does not become dirty and there is no practical problem. This means that a large amount of black precipitate is generated on the entire bottom surface of the developing tank, which is a level that is practically impossible.

[0061]

[Table 3]

From the results shown in Table 3, the filter containing the physical development nuclei of the present invention was excellent in storage stability, the generation of silver sludge was extremely small, and there was no problem in practical use.
Further, no change in photographic characteristics according to the present invention was observed.

[0063]

EFFECT OF THE INVENTION A filter medium containing the physical development nuclei of the present invention and a processing method, that is, a filter medium containing palladium sulfide as the physical development nuclei, wherein a silver halide is prepared by using a developer containing sulfite. By filtering the developer with the filter material during and before and after the step of processing with the photographic light-sensitive material,
When the photosensitive material is processed using an automatic developing solution with a developing solution that improves the storage stability of the filter medium and has a dissolving effect on silver halide, especially a stable developing solution containing a high concentration of sulfite, It is possible to effectively prevent liquid stains due to silver sludge and stains on the rollers and belts of the developing machine without affecting the characteristics.

Claims (1)

[Claims] 1. A method of developing a silver halide photographic light-sensitive material with a developing solution containing a sulfite, wherein physical development nuclei prepared with an anionic surfactant and palladium sulfide are added before and / or after the processing. A process for developing a silver halide photographic material, which comprises filtering with a filter material composed of at least one cellulose and / or its derivative contained therein.