JPH06242574A - Treatment of photographic sensitive material and device therefor - Google Patents

Abstract

PURPOSE:To obtain the good picture causing no clogging even treating a photosensitive material over a long period while energizing to a developing vessel by incorporating a specified hydroxylamine compd. in a developer and using the developing vessel provide with the energizing means provided with a cathode in a developer. and to make possible a low replenishment and a low waste liquid because of no degradation in picture quality. CONSTITUTION:The cathode is allowed contact with the color developer containing the compd. expressed by the formula, and an anode is allowed to contact with the electrolytic soln. which contacts with the developer through an anion exchange membrane, and voltage is impressed to both electrode and electric cur rent is made to flow in response to the loading of the photosensitive material to treat the silver halide photosensitive material. In the formula, X is H, SO3H or OH, Y is 1-2C alkyl or substd. alkyl group. When Y is the substd. alkyl group, the substd. group is SO3H or OH. The good picture causing no clogging is obtained because the compd. expressed by formula is not electrolyzed even the energizing means is applied and the oxidation of a developing agent is prevented sufficiently.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and apparatus for processing a photographic light-sensitive material for processing a silver halide light-sensitive material (hereinafter referred to as a light-sensitive material), and particularly to a method for processing a light-sensitive material which produces little waste liquid when energized. And a processing device.

[0002]

2. Description of the Related Art From the viewpoint of reducing waste liquid, a technique has been proposed in which the processing liquid can be regenerated in the main body of an automatic processor of a minilab to reduce the waste liquid, for example, JP-A-3-209471.
There is a method of energizing the photographic processing liquid described in JP-A-3-273237 and JP-A-3-293661. These energizable processing devices are provided with an electrolytic chamber through a developing tank and an anion exchange membrane, a cathode in the developing tank and an anode in the electrolytic chamber, and both electrodes are energized. Using this energizable processing device, for example, in a developing tank, a reducing action occurs on the cathode surface provided in the color developing tank, and the color developing agent oxidized to semiquinone state by oxygen in the air is reduced and regenerated to some extent. As a result, the original color developing agent is restored and the developing agent can be used efficiently. In addition, the energization removes bromine ions from the developer by moving bromine ions to the anode surface of the electrolysis chamber provided via the developing tank and anion exchange membrane, preventing the development speed from decreasing due to excess bromine ions, and replenishing. Is reduced, resulting in low waste liquid.

[0003]

However, the image quality of the obtained image is deteriorated and the fog occurs remarkably even though the developing tank is energized for development. As for the occurrence of this fog, various causes can be considered empirically, but in this case, it occurs when the treatment is continuously performed while energizing, and therefore, it is possible that a certain component of the developer filled in the developing tank is It is considered that this is a major contributor to the decline in performance. For this reason, low replenishment and low waste liquid processing are not enough, and replenishment increases, resulting in a large amount of waste liquid.

Therefore, an object of the present invention is to provide a processing apparatus which is provided with an energizing means and is capable of obtaining a good image free from fog even when the processing is continued for a long time in a processing capable of low replenishment and low waste liquid. And a processing method.

[0005]

The present invention is accomplished by the following objects (1) to (4). (1) Treatment of a photosensitive material by bringing a cathode into contact with a color developing solution containing a compound represented by the following general formula (I) and bringing an anode into contact with an electrolytic solution which is in contact with the developing solution through an anion exchange membrane. A development processing method in which a voltage is applied to both electrodes in accordance with the amount to carry out an energization process to process the silver halide photosensitive material.

[0006]

[Chemical 2]

(In the formula, X is --H, --SO ₃ H or --OH.
And Y represents an alkyl group having 1 to 2 carbon atoms or a substituted alkyl group. Y is a substituent of the walk substituted alkyl group is -SO ₃ H or -OH. (2) A developing tank filled with a color developing solution containing a hydroxylamine strong acid salt is provided, an anode is provided in an electrolytic chamber provided through the developing tank and an anion exchange membrane, and a developing tank and a cation exchange membrane are provided. A development processing apparatus having a means for bringing a cathode into contact with an electrolysis chamber provided via the above and energizing between both electrodes.

[0008]

That is, in the present invention, the developing tank having an energizing means contains the compound represented by the general formula (I). As a result, a good image can be obtained without fog even if the energization process is continued. Conventionally, it has been known that hydroxylamines are contained in a developing solution as a preservative of a developing agent, but the one generally used is hydroxylamine sulfate, and the others are used. Things are not very well known. Further, there is no description about the effect, action, or problem when combined with energization.

The inventor of the present invention has found that when a conventional organic developing solution is energized to process a light-sensitive material for a long period of time, fog is remarkably generated on an image as described above. Among the hydroxylamines that have been conventionally used, there are ones that decompose by electric current and ones that generate ammonia by decomposition. It is considered that this ammonia is the cause of fog generation, and by applying a means of energization, what was useful so far had an adverse effect on the contrary.

On the other hand, in the present invention, in order to make the current-carrying means capable of low replenishment and low waste liquid more useful, the above formula (I)
A compound represented by formula (I)
Since the compound (1) is not electrolyzed even by using a current-carrying means and the developing agent is sufficiently prevented from being oxidized, a good image without fog can be obtained. Further, it was found that the compound represented by the formula (I) is stable and has little influence on the photographic material even with a slight increase or decrease, and the photographic performance is stable.

Specific compounds of formula (I) include diethylhydroxylamine, methylethylhydroxylamine, disulfoethylhydroxylamine, dihydroethylhydroxylamine and the like. Further, it has a developing tank and an electrolysis chamber provided via an anion exchange membrane, and is provided with a conventional energizing means having an anode provided in the electrolysis chamber.
The chamber type processing apparatus further has a developing tank and an electrolysis chamber provided via a cation exchange membrane, and a cathode is provided in the electrolysis chamber provided via the cation exchange membrane. A three-chamber type photosensitive material processing apparatus in which an energizing means is provided between the chamber and the anode is considered. This device has a drawback that the device is complicated and large, but even if a conventional hydroxylamine sulfate is used, development fog does not occur due to long-term energization running. However, even in such a case, the sulfite or hydroxylamine sulfate as the preservative in the developer was reduced by the electrification treatment of the dusting treatment, and in some cases, the color developing agent was also reduced and tar was sometimes generated. .

However, the conventional simple energizing means (two-chamber type in which a developing solution is provided with a cathode, an electrolytic chamber is provided with an anode, and the intermediate between the developing solution and the electrolytic chamber is partitioned by an anion exchange membrane) is used. When a hydroxylamine derivative is used, development fog does not occur even after long-term energization running.
It was found that the apparatus is simpler than the chamber type and that tar is not generated due to the oxidation of the developing agent.

The strong acid forming the strong hydroxylamine salt of the present invention may be sulfuric acid or hydrochloric acid.
Preferred energization amounts and energization methods used in the present invention include those described in JP-A-4-320265.

As the energization treatment that can be used in the present invention, the method described in JP-A-3-273237 can also be used. Examples of the processing liquid that can be used in the present invention include those described in JP-A-3-33845, pages 9 to 13. The light-sensitive material that can be used in the present invention is disclosed in JP-A-3-33845, Nos. 13 to 26.
Examples include those described on the page.

As a processor to which the present invention can be applied, Phot.
It can be applied to all types of processing machines described in Sci. Eng. 5, 48 to 54 (1961), among which, drum processing machines, roller developing machines, cine type developing machines, leader belt systems Automatic developing machine, roller conveying automatic developing machine, automatic developing machine with a small opening ratio, slit automatic developing machine with a small opening ratio and a small amount of tank liquid, closed automatic developing machine with an extremely small opening ratio, and more. It can be effectively applied to an automatic processing machine having a chamber processing tank. Each of the above-mentioned processing machines is a multi-chamber processing tank for drum processing, photographic industry December issue (1974) p. 45, the multi-chamber processing tank of the roller developing machine is from the February issue of Photo Industry (1975) p. 71,
The multi-chamber processing tank of the cine-type automatic processor is the March issue of Photo Kogyo (197
5) p. 70, the multi-chamber processing tank of the cine type automatic developing machine is published in Photo Industry April issue (1975) p. 40, the multi-chamber processing tank of the leader belt method is from Photo Industry Co., Ltd. May issue (1975) p. 36
The multi-chamber processing tank of the roller conveyor automatic developing machine is photographic industry June issue (1975) p. 41.

From the viewpoint of the processing machine, which cannot be considered from the conventional processing machines, the opening area (degree) (K = S / V) with respect to the interface area (S) between the processing solution and air and the processing solution volume (V) is determined. can give. From these viewpoints, JP-A-53-57835;
JP-A-61-153645, JP-A-61-250648, JP-A-62-92954, JP-A-62-273534, and JP-A-63-1.
82651; 63-182652; 63-1826.
53; Sekikai 63-178830; JP-A-64-820
33; JP-A-1-166040; 1-266541;
Ibid 1-266542; ibid 302-252252; ibid 1-31
0351; ibid 1-310352; ibid. 1-319038;
There are applications for each issue of 1-319040.

Further, an automatic processing machine having a small amount of liquid (V) in the processing machine has a relatively high liquid exchange rate, a small opening ratio (K) and a small amount of tank liquid (V) at the time of a quiet process. Is preferred. From these viewpoints, JP-A-63-13113
8; ibid 63-216050; ibid 63-148944; ibid 63-148945; ibid 63-235940; ibid 61-.
77851; ibid 64-44938; ibid 64-2685.
5; JP-A-1-140148; 1-114847; 1-129253; 1-154155; 1-163
743; Ibid.

JP-A-2-84642; JP-A-2-6974
4; ibid. 2-68548; ibid. 3-33850. Further, it is an example of the interaction between the processor component and the liquid, and there is a viewpoint of rust as suitability of the component, a viewpoint of elution of a photographic deterioration component, a viewpoint of physical deterioration of the component, and the like. Regarding these viewpoints, JP-A-2-186
342 and 2-186344. As a new aspect of the form of another processing machine, Japanese Patent Laid-Open No. 1-267648; 2-67554; 2-125
255; ibid 2-130548; ibid. 2-186340; ibid. 2-205846; i.d. 2-205847; i.i. 2-230.
145; ibid 2-240651; ibid. 2-242249; ibid. 2-267549; i.d. 2-269335; i.d. 2-280.
149; the multi-chamber processing tank applied to each of the above-mentioned No. 2-310557 etc. is mentioned.

Among these, as a treatment method which is particularly applied and has a remarkable effect, an automatic developing machine having a belt conveying mechanism, a roller conveying automatic developing machine having rollers, a slit type automatic developing machine, a closed type automatic developing machine, An automatic processor having a chamber processing tank can be used. In some cases, a groove conveying type automatic machine (U.S. Pat.
186,927, JP-A-56-159645;
67933; ibid. 53-40245; ibid. 53-5982.
9; 55-138641; 58-28839).

The following photosensitive materials and processing agents can be used in the present invention. First, the photosensitive material will be described. The silver halide light-sensitive material that can be used in the present invention is used for amateurs, industrial materials, medical treatments, scientific treatments such as color development, ordinary negative processing treatments, light / reversal positive treatments, and chemical reversals. The positive method by the positive method by the diffusion transfer or the like can be used.

The support may be a transparent support, an opaque support or a semitransparent support, and the support has a thickness of 30 to 500 μm.
Level ones can be used. Emulsions include various halogen species and combinations of halogen species, that is, one-component, two-component, and three-component emulsions, those in which the distribution of halogen is changed in the grain formation process, and grains are laminated. Any of the above-mentioned grain structures, those having different core / shell ratios, emulsions with conversion, and junction type emulsions can be used.

Further, as the form of particles, hexahedron, octahedron,
A tetrahedral structure, a mixture thereof, a twin crystal, a flat plate, or a spherical one can be used. As the tabular one, those having various aspect ratios, a mixture thereof or a mixture with other particles can be used. Further, the particle size may be uniform or may have a distribution. For example, less than 0.1 μm, 0.1 to 0.4 μm, 0.4 to 1 μm
m, 1 μm or more and the like, or a single combination.

The emulsion may contain a binder other than gelatin. For example, it is preferable that a natural polymer, a synthetic polymer, or these are dispersed and mixed in various particle sizes.
Also, the allocation may be changed for each layer. These silver halide grains may adsorb various sensitizing dyes, desensitizing dyes, stabilizers, chemical sensitizers, and physical sensitizers, or may coexist during preparation. Further, the emulsion mixture may contain various dyes, surfactants, hardeners, oils and the like. An anti-fading agent, an anti-color mixing agent, a nucleating agent, a matting agent, a slip agent, a mordant, a toning agent, a development aid, and a developer may be contained directly or in oil.

Various metals may be added during the grain formation process, or may be added directly to the emulsion. Suitable metals are gold, platinum, rubidium, palladium, iron, cobalt, nickel, iridium, rhodium, silver and the like, but they may be mixed with various chelating agents and used. The color light-sensitive material may further contain various couplers.

Examples thereof include pivaloyl-type / benzoyl-type Y couplers, pyrazolone-type / pyrazoloazole-type M couplers, and phenol-naphthol-type C couplers. Further, various DIR couplers, colored couplers, polymer couplers, and couplers having various leaving groups can be used as the functional coupler.

The light-sensitive material layer can be formed by combining the above-mentioned emulsion and various additives, and in the case of a color light-sensitive material, further combining various couplers. Even if it is a black-and-white light-sensitive material, the functions may be divided into two layers or three layers. In the case of a color light-sensitive material, three layers may be used, and in some cases, the layers may be assembled so that the light is divided into 4 to 5 colors. Good.

Finally, in addition to the emulsion layer, an undercoat layer, an intermediate layer, a protective layer, a peeling layer, a separation layer, a neutralization layer, a filter layer, a vapor deposition layer, a reflection layer, a light shielding layer and the like may be provided. Further, a light-sensitive material provided with a back layer for the purpose of curl correction, static prevention, magnetic recording and the like can be used for the back of the support. As a total value of these, the sensitivity is ISO 0.1-IS
O 2000 and gradation of 0.1 to 10 can be used.

The treating agent that can be used in the present invention will be described. As the treatment agent usable in the present invention, any treatment agent such as a treatment agent prepared when a premixed treatment agent is used can be used. Processing liquid types include color developers, bleaching solutions, fixing solutions, bleach-fixing solutions, stabilizing solutions, other stop solutions, neutralizing solutions, hardening solutions, intensifying solutions, reducing solutions, supersensitizing solutions, toning. Liquid etc. can be used.

As these treatment liquids, those containing various compounds can be used according to the purpose. For example, in the developer, color developing agents, development aids, antifoggants, surface development inhibitors, development accelerators, chelating agents, buffers, preservatives, precipitation inhibitors, antisludge agents, antitarring agents, etc. are added. it can. As a special example, a DIR-releasing agent, a dye developing agent, a color precursor agent, a desensitizer, a ferroe-burn preventive agent, an external coupler, a competitive coupler, etc. can be added.

In addition to these, an alkali agent for adjusting the pH, an acid agent, various activators for changing the surface tension, etc. can be added. These examples may be added in addition to the developer. In addition to these, a fluorescent whitening agent, an image stabilizer, a draining agent, an antifungal agent, an antibacterial agent and the like can be added to the final solution. The processing order of applying these processing agents to the light-sensitive material may be a prescribed order or may be changed depending on the case.

[0031]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the accompanying drawings. However, the present invention is not limited to this embodiment. FIG. 1 is a schematic plan view of a photosensitive material processing apparatus according to an embodiment of the present invention. The photosensitive material processing apparatus 1 includes a developing tank D, a bleaching tank B, a fixing tank F, washing tanks W1 and W2, and a stabilizing tank St, and the photosensitive material S is conveyed through the processing tanks in order. The developing tank D and the anion exchange membrane A are in the developing tank D.
An electrolytic chamber E is provided via the.

Replenishers b1 to b5 are added to the respective processing tanks, and overflow liquids a1 to a6 are discharged from the processing tanks.

Cathode 6 in developing tank D and anode 5 in electrolytic chamber E
Both electrodes are energized for processing. The control of energization is controlled by a control device (not shown) in consideration of the processing amount of the photosensitive material, the leaving time of the developing solution, and the like. When energized, at the cathode, the electrons emitted from the electrode return the developing agent oxidized to the semiquinone state to the reduced state,
In addition, oxygen mixed in from the air is decomposed to prevent the developing agent from being oxidized.

The developing tank contains a hydroxylamine compound represented by the formula (I), and the hydroxylamine compound used as a preservative does not decompose even when an electric current is applied, and thus a fog-causing substance is generated. Does not occur. On the other hand, bromine ions accumulated in the developing solution are moved toward the anode in the electrolytic chamber through the anion exchange membrane and removed from the developing solution. If bromine ion is present in excess, it leads to a decrease in development rate and a reduction in sensitivity, so it is preferably removed.

FIG. 2 is a sectional view of the developing tank according to the embodiment of the present invention. In the developing tank D1, an anode 15 is provided in the electrolytic chamber E2 via the developing tank D1 and the anion exchange membrane A, and a cathode 1 is provided in the electrolytic chamber E1 via the developing tank D1 and the cation exchange membrane K.
4 is provided, and energizing means (not shown) is provided on both electrodes to energize. Since the electrode is not in direct contact with the developer, it is possible to favorably prevent the electrolysis of hydroxylamine. In the developing tank D1, when both the anode 15 and the cathode 14 in the electrolysis chamber are energized, unnecessary salts accumulated in the developing solution move to the electrolysis chamber.

1 or 2 of the present invention, the anode: carbon plate [thickness 1 mm, 10 (cm) x
30 (cm)] Kureha Chemical Industry Co., Ltd. clay sheet, cathode: stainless steel plate [SUS316 thickness 1 mm, 10 (c)
m) × 30 (cm)] Nippon Metal Industry Co., Ltd. NTK31
6, anion exchange membrane A: Tokuyama Soda AM-3,10 (c
m) × 30 (cm), the electrolyte solution is 3% Na ₂ C
₃ ml of O3 was replenished per 135 x 24 Exp. The cation exchange membrane (K) of FIG. 2 is AM-X, 10 manufactured by Tokuyama Soda.
(Cm) × 30 (cm) was used.

[0037]

【Example】

Example 1 For each 1 liter of the four color developing solutions of the processing formulations (A), (B), (C), and (D), each was energized at 0.8 A for 1 hour in the energizing device (bath) of FIG. .

Treatment formulation (A) 1 liter formulation Diethylenetriaminepentaacetic acid 1.0 g 1-Hydroxyethylidene-1,1-diphosphonic acid 3.0 g Sodium sulfite 3.56 g Hydroxylamine sulphate 2.48 g Potassium bromide 1.47 g Iodine Degree Potassium 2 mg 4- [N-ethyl-N- (β-hydroxyethyl) amino] -2-methylaniline sulfate 4.63 g pH 10.05

Treatment formulation (B) 1 liter formulation The hydroxylamine sulfate salt of the treatment formulation (A) was changed to 4.43 g of disulfoethylhydroxylamine. Treatment formulation (C) 1 liter formulation The hydroxylamine sulfate salt of treatment formulation (A) was changed to 1.39 g of dihydroxyethylhydroxylamine. Treatment formulation (D) 1 liter formulation Changed to 2.03 g / liter of diethylhydroxylamine instead of the hydroxylamine sulfate of treatment formulation (A).

The components other than the above in the treatment formulations (B) to (D) are performed in the number of grams shown in Table 1, and the components other than those shown in Table 1 are the same as those in the treatment formulation (A). . Table 1 below shows the analytical values of the basic liquid composition before and after the treatment in each of the prepared treatment liquids.

[0041]

[Table 1]

The abbreviations in Table 1 are shown below. SS: sodium phosphite CD-4: 4- [N-ethyl-N- (β-hydroxyethyl) amino] -2-methylaniline sulfate HAS: hydroxylamine sulfate

Compared with HAS of Comparative Example, the compound of the present invention shows a small decrease and has a high stability under electric current. From this fact, when conducting a two-chamber type energization treatment, hydroxylamine sulfate reduces it, but the compound represented by the formula (I) of the present invention does not decrease and is stable.

Example 2 (Photosensitive material) Color negative film Gold 1600 manufactured by Eastman Kodak (Process) JP-A-3-213853
Using the treatment step (2) of Example 1 and the mother liquor and replenisher solution prescriptions described in Japanese Patent Laid-Open Publication No. JP-A-2004-27100, the treatment was performed by the treatment apparatus shown in FIG. 1 (the treatment step (2) and the like are shown below).

The processing formulations (A) to (D) used in Example 1 in the mother liquor and the replenisher formulation in the color developer formulation.
The hydroxylamine derivative therein was replaced as described below and processed using a developer. Mother liquor Replenisher (g / liter) Treatment formulation (A) Hydroxylamine sulfate: 2.4 3.3 Treatment formulation (B) Disulfoethylhydroxylamine: 4.29 5.90 Treatment formulation (C) Dihydroxyethylhydroxylamine : 1.30 1.79 processing recipe (D) diethylhydroxylamine: 2 2.75 Using the developing solutions of the processing recipes (A) to (D) prepared as described above, energization running was performed at 200 lines / day. I ran weekly.

The sample was cut and processed into a width of 35 mm, and white light (color temperature of the light source was 4 CMS) so that the exposure amount of the highest density portion was 5 CMS.
A wedge exposure of 800 ° K) was applied, and the following processing was performed using a cine type automatic developing machine. However, for the sample whose performance was evaluated, the sample subjected to imagewise exposure by the following processing method was continuously processed and then processed. Processing process (2) Process processing time Processing temperature Replenishment amount ^* Tank capacity Color development 3 minutes 15 seconds 38.0 ℃ 23 ml 15 liters Bleach 45 seconds 38.0 ℃ 5 ml 5 liters Bleach fixing 45 seconds 38.0 ℃ −−−− 5 liters Settling 45 seconds 38.0 ℃ 15 ml 5 liters Washing with water (1) 20 seconds 38.0 ℃ −−−− 5 liters Washing with water (2) 20 seconds 38.0 ℃ 30 ml 5 liters Stability 20 seconds 38.0 ℃ 20 ml 5 liters Drying 1 minute 55 ℃ * Replenishment amount per 35 mm width 1 m

The composition of the processing liquid is shown below. (Color developer) Mother liquor (g) Replenisher (g) Diethylenetriaminepentaacetic acid 2.0 2.2 1-Hydroxyethylidene-1,1-diphosphonic acid 3.3 3.3 Sodium sulfite 3.9 5.2 Potassium carbonate 37.5 39.0 Potassium bromide 1.4 0.4 Potassium iodide 1.3 mg --- Hydroxylamine sulfate 2.4 3.3 2-Methyl-4- [N-ethyl-N- (β-hydroxyethyl) amino] aniline sulfate 4.5 6.1 Water was added to 1.0 liter 1.0 liter pH 10.05 10.15

(Bleach) Mother liquor (g) Replenisher (g) Ethylenediaminetetraacetic acid iron salt 0.37 mol 0.52 mol Ammonium bromide 84.0 120.0 Ammonium nitrate 30.0 41.7 Glycolic acid 91.0 130.0 Acetic acid (98 wt%) 34.0 48.0 1.0 liter with addition of water 1.0 liter pH (adjusted with ammonium water) 3.2 2.8

(Fixer) Mother liquor (g) Replenisher (g) Imidazole 21.0 63.0 Ethylenediaminetetraacetic acid 10 12 Ammonium thiosulfate aqueous solution (700 g / l) 300.0 ml 770.0 ml Ammonium sulfite 15.0 45.0 1.0 liter 1.0 liter pH 7.4 by adding water 7.4

(Bleach-fixing solution) mother liquor A 1:10 mixture of the bleaching liquor mother liquor and the fixing liquor mother liquor.

(Washing Water) Common to mother liquor and replenisher tap water is H-type strongly acidic cation exchange resin (Amberlite IR-120B manufactured by Rohm and Haas) and OH type strongly basic anion exchange resin (Amberlite IRA-). Four
00) packed in a mixed bed column to treat calcium and magnesium ions at a concentration of 3 mg / liter or less,
Subsequently, 20 mg / liter of sodium isocyanurate dichloride and 150 mg / liter of sodium sulfate were added.

The pH of this solution was in the range of 6.5-7.5.

(Stabilizer) Common to mother liquor and replenisher (Unit: g) Formalin (37 wt%) 2.0 ml Polyoxyethylene-p-monononylphenyl ether (Average degree of polymerization 10) 0.3 Ethylenediaminetetraacetic acid disodium salt 0.05 Water was added 1.0 liter pH 5.0-8.0

The above results are shown in Table 2. BL before and after energization
The D _min of the above was obtained and was as shown in the table below.

[0055]

[Table 2]

From the above results, the treatment recipe of the comparative example (A)
However, when treated with a treatment liquid after energization, an increase in fog is recognized, which causes a problem in practical use. On the other hand, in the processing formulations (B) to (D) of the present invention, it is found that the light-sensitive material processed after energization has no increase in fog and the developer is kept stable.

Example 3 In Example 2, the developer containing hydroxylamine sulfate [Treatment Formula (A)] caused development fog during energization running, but no development fog occurred when the energization tank in FIG. 2 was changed. There wasn't.

[0058]

INDUSTRIAL APPLICABILITY In the processing method and the processing apparatus of the present invention, a developing tank containing a hydroxylamine compound represented by the formula (I) in a developing solution and having a current supplying means in which a cathode is installed in the developing solution is used. Even when the photosensitive material is processed for a long time while the developing tank is energized, a good image without fog can be obtained. Since the image quality does not deteriorate even when the power is turned on, low replenishment and low waste liquid are possible.

[Brief description of drawings]

FIG. 1 is a plan view of a development processing apparatus.

FIG. 2 is a sectional view of another developing tank portion of the developing processing apparatus of FIG.

[Explanation of symbols]

 D, D1 Development tank B Bleaching tank F Fixing tank W1-W2 Water washing tank E Electrolysis chamber 6, 15 Anode 5, 14 Cathode b1-b5 Replenisher a1-a6 Overflow solution A Anion exchange membrane K Cation exchange membrane

Claims (2)

[Claims] 1. A photosensitive material comprising a color developing solution containing a compound represented by the following general formula (I), a cathode being brought into contact, and an electrolyte being brought into contact with the developing solution through an anion exchange membrane. The method for processing a photosensitive material in which a silver halide photosensitive material is processed by applying a voltage to both electrodes and energizing according to the processing amount of. [Chemical 1] (In the formula, X represents —H, —SO ₃ H or —OH, and Y represents an alkyl group having 1 to 2 carbon atoms or a substituted alkyl group.
Y is a substituent of the walk substituted alkyl group is -SO ₃ H or -OH. ) 2. An anode is provided in a developing tank filled with a color developing solution containing a strong hydroxylamine salt and an electrolytic chamber provided via an anion exchange membrane, and provided via a developing tank and a cation exchange membrane. Photosensitive material processing apparatus having means for bringing a cathode into contact with the other electrolytic chamber and energizing between both electrodes.