JPS63182652A - Apparatus for processing silver halide photographic sensitive material - Google Patents

Abstract

PURPOSE:To prevent the oxidation of a processing solution by providing an inlet port for introducing a nitrogen gas under the level of the processing solution in one of the processing tanks of an automatic developing machine, thereby expelling a dissolved oxygen gas from the processing solution with the nitrogen gas. CONSTITUTION:The dissolved oxygen gas is expelled from the processing solution with the nitrogen gas by introducing the nitrogen gas into the processing solution accommodated in the processing tank of the automatic developing machine from a nitrogen gas separating apparatus 14. The inlet port for introducing the nitrogen gas may be a hole provided on the wall of the tank for the processing solution or may be a pipe connected to the hole provided on the wall of the processing tank or may be the pipe provided into the processing solution under the surface level of said solution. In any one of the cases mentioned above, the inlet port for introducing the nitrogen gas is preferably provided in the processing tank at the part as lower as possible. Thus, the deterioration of the processing solution due to the oxidation can be effectively prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a silver halide photographic material processing apparatus particularly suitable for processing small quantities.

(Background of the Invention) For example, in color photographic processing, a photographed color negative film is developed to create a negative image, and this negative image is printed on color vapor to obtain a positive image based on the negative image.

Traditionally, the processing of color photographs has traditionally been carried out in large quantities in large photographic processing facilities.
There are problems such as increased collection and delivery costs and time consuming.

On the other hand, development processing has become practical due to the practical use of waterless washing processing that does not use washing water, and there is no need for piping to supply or drain washing water, so color printing can be carried out in any location as long as there is a power source. It is now possible to develop photos. Furthermore, technology for speeding up the development process has led to the rapid decentralization of processing in mini-labs, micro-labs, etc., and it has become possible to take photographed film to a store and have it developed within the waiting time.

On the other hand, it has become possible to introduce color photo processing into office machines such as color copiers and video printers.

Conventionally, inkjet or thermal transfer methods have been used in color copiers, video printers, etc., but copying onto silver halide photosensitive materials using a photosensitive material processing device equipped with an exposure device provides high image quality and is easy to use with the device. It has advantages such as being inexpensive.

Incidentally, a feature of the development processing in minilabs, microlabs, and offices as described above is that the amount of processing in a given time is small. For this reason, the processing solution is often fatigued and evaporated due to oxygen in the air, and this oxidation and evaporation of the processing solution can cause deterioration of the processing solution, generation of tar and precipitates, fogging, decrease in density, loss of color balance, etc. This is one of the causes of deterioration in image quality, has a major impact on photographic performance, and significantly reduces the commercial value of finished prints.

Various methods have been proposed to solve this problem, such as adding a preservative to the processing solution periodically, but the effect is not sufficient and the management of the solution to be added regularly is troublesome. be. Furthermore, the amount of replenisher is increased or the replenisher for stagnation over time is replenished, but in these cases the replenisher must be prepared with special consideration for oxidation, which increases the burden and increases the amount of waste fluid.

Also, for example, from the perspective of automatic processing machines, it is possible to reduce the opening area of the processing liquid tank or use a vertically long processing tank, but depending on the device, such a structure may not be possible due to the relationship with the conveyance means etc. In some cases, it may not be possible, and the effect may not be sufficient.

Also, JP-A-62-9350, and JP-A-62-9350,
As disclosed in Japanese Patent No. 9351, a method has been proposed in which the developer tank is covered with a lid and filled with a gas such as nitrogen that has a smaller oxidizing effect than air or deoxidized air. However, if a nitrogen cylinder or the like is used, it is not only subject to the High Pressure Gas Control Law, but also requires refilling and replacing the cylinder, making it difficult to put it into practical use. Furthermore, in the method described in Japanese Patent Application Laid-Open No. 62-9351, in which air is brought into contact with developing waste liquid and the air is filled with deoxidized air, deoxidation through contact with this developing waste liquid is not sufficient. However, deterioration due to oxidation of the developer cannot be effectively prevented. Therefore, there is a need for something that can be easily handled in minilabs, microlabs, offices, etc., and that can effectively prevent oxidation and evaporation.

On the other hand, in black-and-white development processing, a developer with a low sulfite concentration, such as a lithium developer, uses so-called contagious development, and therefore has a low sulfite concentration and is easily oxidized. For this reason, two types of replenishment fluids are used: one that is replenished according to the throughput and the other that is replenished according to the stop time.
It is difficult to balance the replenishment of these different types of replenishers. Furthermore, there is currently no highly effective preservative that does not particularly affect infectious development.

(Object of the Invention) This invention has been made in view of the above-mentioned conventional problems, and the first object of the invention is to eliminate dissolved oxygen in the processing liquid using nitrogen gas separated from the air. An object of the present invention is to provide a silver halide photographic material processing apparatus that effectively prevents the oxidation of silver halide. The second object of this invention is to separate nitrogen gas from the air and introduce it into an automatic processor to produce a silver halide photographic light-sensitive material that is inexpensive, easy to handle without the need for replenishment of introduced gas, and compact. The purpose of the present invention is to provide a processing device.

(Means for Solving the Problems) In order to solve the above problems, the silver halide photographic light-sensitive material processing apparatus of the present invention includes an automatic developing machine for developing silver halide photographic light-sensitive materials, and an automatic developing machine for processing silver halide photographic light-sensitive materials. It is equipped with a nitrogen gas separation device that separates and introduces nitrogen gas from the air into the developing machine, and at least one of the processing liquid tanks of this automatic developing machine is
A nitrogen gas inlet is provided below the level of the processing liquid in the processing liquid tank.

The silver halide photographic materials used in the automatic processor for processing the silver halide photographic materials of this invention include color negative film, color vapor, color reversal film, color reversal vapor, direct positive color film, direct positive color vapor, Surface latent image type silver halide photographic light-sensitive materials such as color X-ray film, black-and-white negative film, black-and-white vapor, black-and-white reversal film, black-and-white reversal vapor, direct positive black-and-white film, direct positive black-and-white paper, X-ray film, and lithographic film. and internal latent image type silver halide photographic materials, color and black and white photographic materials, photographic materials for photographing, printing and copying, and vapor. Any photographic light-sensitive material such as or film may be used, but color negative film, color paper, color reversal film, color reversal paper, and direct positive film, which are silver halide light-sensitive materials that are processed with a processing solution that has particularly poor storage performance over time, may be used. The processing apparatus of the present invention is particularly preferably used for processing color films, direct positive color papers, color X-ray films, and lithographic films.

The automatic developing machine for processing the silver halide photographic material of the present invention includes, for example, roller transport, guide roller transport, endless belt transport, leader transport, short leader transport, hanger transport, and the number of these. Any type of automatic developing machine that transports seeds in combination may be used.

The automatic developing machine may have a built-in printer, other exposure device, second exposure device, etc., and may also have a replenisher tank and a stirring means used when adjusting the replenisher.

In this invention, dissolved oxygen in the processing liquid is driven out by the nitrogen gas introduced from the nitrogen gas separation device into the processing liquid held in the processing liquid tank of the automatic processor.

The nitrogen gas introduction port of the present invention may be a hole provided in the wall of the processing liquid tank, or may be a pipe connected to a hole in the wall of the processing liquid tank, or may be a hole provided in the wall of the processing liquid tank. It may also be a pipe inserted into the liquid. In any of these cases, it is preferable that the nitrogen gas inlet be provided at the bottom of the processing liquid tank as much as possible.

Nitrogen gas can be introduced not only into the processing solution filled in the processing solution tank, but also into the replenishment solution filled in the replenishment solution tank to more effectively prevent deterioration of the processing solution due to oxidation. can.

In this invention, the processing liquid and replenisher into which nitrogen gas is preferably introduced include a color developing solution, a fixing solution, a stabilizing processing liquid (anhydrous washing stabilizer for color vapor, a first stabilizing processing liquid, an anhydrous washing liquid for color negatives, etc.). Stabilizing solution), Lith developer, bleach-fix solution, X-ray black and white developer, and their replenishers, but particularly preferred are color developing solutions, stabilization processing solutions, Lith developer, and their replenishers. .

Nitrogen gas may be introduced into one or several of these processing solutions and/or replenishers; for example, in a color developer tank, a bleach-fix tank, etc. In the case of an automatic developing machine for color vapor or an automatic developing machine for direct positive color photography, which is composed of a stabilized processing liquid tank and a stabilizing processing liquid tank, it is preferable to introduce it into all the processing liquids.

The nitrogen gas separation device of this invention is characterized in that it generates nitrogen gas while also generating oxygen gas to separate nitrogen from the air.For example, the automatic developing machine of this invention is an automatic developing machine that processes color negatives. In some cases, by providing a means for introducing nitrogen gas into the color developing solution and a means for introducing oxygen gas into the bleaching solution, introducing nitrogen gas and oxygen gas, respectively, can prevent oxidation of the color developing solution and bleach the solution. Efficient oxidative regeneration of the liquid can be achieved at the same time. In this case, it is preferable that nitrogen gas is introduced into the fixer and the anhydrous washing stabilizer by providing nitrogen gas introducing means.

Further, it is preferable that the self-developing device of the present invention is configured such that the surface of the processing liquid is isolated from the outside air by the supplied nitrogen gas. In this case, the automatic processor is configured so that the pressure of nitrogen gas in the interior space of the automatic processor, including the surface of the processing solution, is at least 0 mm higher than the outside pressure. It is preferable because it is effectively blocked. In this case, the space inside the automatic processor including the processing liquid level may be configured so that nitrogen gas is introduced into the processing liquid from a nitrogen gas separator placed outside, or the nitrogen gas separator may be installed inside this space. It may be placed in In the former case, since the space can be reduced, the burden on manufacturing the automatic processor can be reduced, which is preferable.

1.7' When nitrogen gas is introduced into two or more types of processing liquids, the spaces containing the surfaces of each processing liquid may be independent, or the spaces containing the surfaces of each processing liquid may be separate. Although it may be connected to the upper one, the latter is preferable in order to reduce the burden on manufacturing the automatic processor.

In the automatic developing machine of the present invention, it is preferable that the surface of the processing liquid is sealed from the outside air by the nitrogen gas supplied as described above, but it is not necessarily necessary to be effectively isolated from the outside air at all times. That is, an automatic developing machine normally starts temperature control in the morning, becomes ready for development by beating up, and continues temperature regulation to maintain the state ready for development until the end of the night heating process. Except in special cases, temperature control is normally stopped and the automatic developing machine is in a dormant state. Also, even when controlling the temperature, the time for processing photosensitive materials is short, especially when used as an office machine such as a minilab, color copy system, or video system. Most of the time, including downtime at night, when photosensitive materials are not being processed.

Generally, when processing photosensitive materials, a gap is required to insert the photosensitive material from outside the automatic processor and a gap to discharge the photosensitive material to the outside of the automatic processor. In order to isolate the surface of the processing solution from the outside air using nitrogen gas supplied from In some cases.

In such a case, it is preferable to configure the automatic developing machine so that the gap is closed when the photosensitive material is not being processed. In this case, if it is possible to completely isolate the space containing the surface of the processing liquid to be sealed with nitrogen gas from the outside air, if the introduction of nitrogen gas is interrupted after filling the space with nitrogen gas, the Energy costs required to separate nitrogen gas can be saved. In addition, if the above space cannot be completely isolated from the outside air, nitrogen gas may be introduced intermittently into the above space, or a means for detecting the oxygen concentration may be installed in the space to maintain a constant concentration of oxygen. It is preferable to introduce nitrogen gas when the above oxygen is detected, but it is preferable to continuously introduce nitrogen gas because it reduces the manufacturing cost of the automatic developing machine and allows the surface of the processing liquid to be treated with nitrogen gas. Particularly preferred for completely shielding the area from the outside air.

In these cases, when processing the photosensitive material, nitrogen gas may or may not be introduced, but it is preferable to continuously introduce nitrogen gas in order to minimize contact of the surface of the processing liquid with the outside air.

Although the automatic developing machine of this invention and the nitrogen gas separation device may be separated, it is better to have the separating device built into the automatic developing machine of this invention, since the work space is substantially limited by piping, etc. Very preferable.

The nitrogen gas separation device in this invention is a device that separates oxygen and nitrogen gas in the air using separation means such as a gas separation membrane or a molecular sieve. As the gas separation membrane, a polymer membrane is used, and particularly preferred polymer membranes include a copolymer of polydimethylsiloxa and polycarbonate, a three-dimensional copolymer of polystyrene and polydimethylsiloxane, polymethylpentene, Fluorine-containing olefin/
Synchlohexane copolymer, synchlohexane polycarbonate plasma polymer, polyacetylene and liquid crystal
Examples include PVC blends. These polymer membranes are made thin by, for example, a water surface spreading method, and used as a plate-and-frame (PF) type module.

As the molecular sieve, polymer zeolite, carbon, etc. are used, and molecular sieving carbon using carbon is particularly preferably used. It is preferable that the molecular sieve carbon has ultra-micropores of 0.5 to 100A, preferably 3 to 5A, and that the pore diameters are as uniform as possible.

Among these separation means, molecular sieves are preferred, and molecular sieve charcoal is particularly preferably used.

In order to effectively prevent deterioration of the processing liquid due to oxidation using the processing apparatus of this invention, a nitrogen gas separation device is used.
The concentration of nitrogen gas in the air may be at least 90% or more, particularly preferably 98% or more.

(Example) Hereinafter, an example of the present invention will be described based on the accompanying drawings.

Fig. 1 shows a photosensitive material processing apparatus in which a nitrogen gas separation device is arranged outside the automatic developing machine. In the figure, reference numeral 1 is the automatic developing machine, and a latent image is attached to the mounting part 2 provided on the side wall of the main body of the developing machine. A magazine 4 containing formed photographic paper 3 is attached. This photographic paper 3 enters the interior through the entrance 5, passes through a color developing tank 6, a bleach-fixing tank 7, a first stabilizing film 8, a first stabilizing film 9, and is automatically developed and then dried. After being dried in section 10 and taken out from outlet 11, it undergoes cutting and other processes to become a printed product.

The color developing tank 6, the bleach-fixing tank 7, the first stabilizing tank 8 and the first stabilizing tank 9 are connected to each other by a counter so that the second tank is replenished and overflows into the first tank. The photographic paper 3 is sequentially arranged in parallel and is subjected to a predetermined process while being immersed in the respective processing liquid by a conveyance roller 12 provided in each tank. Note that 13 is a waste liquid tank.

The nitrogen gas separation device 14 is equipped with an air compressor 15,
Air is compressed and cooled by an aftercooler 16 and a drain separator 17, dehumidified by an air dryer, and activated carbon [
18, a filter 19, a buffer tank 20, and a solenoid valve 21.22 to a pair of adsorption tanks 23.24. When the solenoid valves 25, 26, 27 on the output side of this adsorption tank 23 are on and the solenoid valve 21 on the input end is on, adsorption is N! Oxygen is adsorbed in 23, and the separated nitrogen gas is stored in cylinder 28. At this time, the electromagnetic valve 29 on the output side of the other adsorption tank 24 is off, the electromagnetic valve 22 on the input side is off, and the electromagnetic valve 30 is on, discharging the adsorbed oxygen to the vacuum pump 31 side. The pair of adsorption tanks 23 and 24 repeat this operation alternately every few minutes to separate nitrogen gas and oxygen. The nitrogen gas separated in this way is introduced into the automatic processor 1. The amount of nitrogen gas supplied can be adjusted by adjusting the opening degree of the solenoid valve 32.

Oxidation and evaporation of the processing liquid are prevented so that nitrogen gas is not introduced into all the processing liquids in the automatic processor 1, and the surface of the processing liquid is isolated from the outside air by the nitrogen gas carried out from the surface of the processing liquid. ing.

FIG. 2 shows an embodiment in which the present invention is applied to an automatic developing machine with a built-in exposure device. The exposure device 33 is provided on the upper part of the automatic developing machine 1, and the lens system 34 moves with the movement of the document table 35, and the image of the document placed on the document table 35 is transferred to the lens system while the photosensitive material is being conveyed. 34 onto the photosensitive material to directly form a positive image. This photosensitive material is developed in the automatic processor 1 in the same manner as described above.

All processing liquid levels in this automatic processor 1 are contained within one space, and after nitrogen gas generated from a nitrogen gas separation device installed in this space is introduced into all processing liquids, This space is filled with stuff. Note that 13' is a replenishment tank.

As shown in FIG.
Nitrogen gas is introduced into the processing solution through a vibrator 39 having an inlet 38 for introducing nitrogen gas into the processing solution, and further through a lid 3.
By filling the space sealed by 6, oxidation prevention can be ensured. Note that the processing liquid [6' is supplied with replenisher from a replenisher tank 41 by driving a replenisher pump 40. Further, an overflow liquid tank 42 is provided at the upper part of the processing liquid tank, and the processing liquid that overflows due to supply of replenisher liquid is discharged from a pipe 43. A nitrogen gas separation device 14 is also installed in the replenisher tank 41.
Nitrogen gas is introduced from

FIG. 4 shows another embodiment of the introduction of nitrogen gas, in which an inlet 38 is provided at the bottom of the processing liquid tank 6' to supply nitrogen gas into the processing liquid and at the same time to supply nitrogen gas to the surface of the processing liquid. This is how it was done.

FIG. 5 shows an automatic developing machine with a built-in nitrogen gas separation device 14, in which nitrogen gas is transferred via a vibrator 39 to a color developer tank 6, a bleach-fix tank 7, a first stabilization tank 8, and a stabilization tank 8. The treatment liquid is introduced into a second tank 9.

FIG. 6 shows the case of a color negative processing apparatus including a bleaching tank. first stabilization treatment first tanks 49 connected to each other;
The first stabilization process second cell 50 and the second stabilization process cell 51 are sequentially arranged in parallel in this order.

The nitrogen gas separated from the nitrogen gas separator 14 is introduced into the color developing solution type 46, the fixing solution tank 48, the first stabilizing solution first tank, and the first stabilizing solution second tank via the vibrator 55. , oxygen gas is introduced into the bleaching solution tank 53 through the vibrator 56, thereby simultaneously achieving oxidation prevention of the color developing solution, fixing solution, and first stabilizing solution, and efficient oxidation regeneration of the bleaching solution.

[Experimental example] After printing a commercially available color photographic paper, a developing processing device almost similar to the developing processing device shown in Fig. 1 was used.
Continuous processing was performed using the following processing steps and processing solutions.

Standard processing steps (1) Color development 38℃ 3 minutes (2) Bleach fixing 38℃ 1 minute 30 seconds (3) Stabilization treatment
25℃~35℃ 3 minutes (4) Drying 75℃~1
00℃ for about 2 minutes Processing solution composition [Color development tank liquid Cobenzyl alcohol 15mJl! Ethylene glycol 15mJZ Potassium sulfite 2.0g Potassium bromide
1.3g sodium chloride
0.2g potassium carbonate
24.0g 3-Methyl-4-amino-N-ethyl-N-(β-methanesulfonamidoethyl)aniline sulfate 4.5g Optical brightener (4,4
'-diaminostilbendisulfonic acid derivative)
1.0g hydroxylamine sulfate
3.0g 1-hydroxyethylindene-1,1-niphosphonic acid 0.4g hydroxyethyliminodiacetic acid 5.0g magnesium chloride hexahydrate 0.7g 1.2-dihydroxybenzene-
Add 0.2 g of 3,5-disulfonic acid disodium salt to 1°C, and adjust to pH 10 with potassium hydroxide and sulfuric acid.
20.

[Color developer replenisher] Hensyl alcohol 20m℃ ethylene glycol 20mu potassium sulfite
3.0g potassium carbonate
24.0g hydroxyamine sulfate
4.0g 3-Methyl-4-amino-N-ethyl-N-(β-methanesulfonamidoethyl)aniline sulfate 6.0g Optical brightener (4,4'
-diaminostilbendisulfonic acid derivative)
2.5g 1-hydroxyethylindene-1,1-niphosphonic acid 0.5g hydroxyethyliminodiacetic acid 5.0g Magnesium chloride.
Hexahydrate 0.8g1.2-Dihydroxybenzene-3,5-disulfonic acid disodium salt 0.3
g Add water to make IIl, and adjust the pH with potassium hydroxide and sulfuric acid.
10,70.

[Bleach-fix tank solution] Ethylenediaminetetraacetic acid ferric ammonium dihydrate 60.0g Ethylenediaminetetraacetic acid 3.0g Ammonium thiosulfate (70% solution) 150. mu ammonium sulfite (40% solution) Add 27.5 m of standing wood, bring the total volume to 1°C, and adjust the pH with potassium carbonate or glacial acetic acid.
Adjust to 7.1.

[Bleach-fixing replenisher A] Ethylenediaminetetraacetic acid ferric ammonium dihydrate 260.0g Potassium carbonate 42.0g Add water to bring the total amount to 1.

The pH of this solution was adjusted to 6.7 using acetic acid or aqueous ammonia.
Set to ±0.1.

[Bleach-fix replenisher B] Ammonium thiosulfate 600.0 mft (70
% solution) Ammonium sulfite 250.0ml (40%
Solution) Ethylenediaminetetraacetic acid 17.0g Glacial acetic acid
Total amount i including 85.0m standing trees
I1. shall be.

This solution has a pH of 5.3 using acetic acid or aqueous ammonia.
It is ±0.1.

[Water washing alternative stabilization treatment tank liquid and replenisher] Ethylene glycol 1.0g 2-methyl-4-
Isothiazolin-3-one
0.20g 1-hydroxyethylidene-1,1-dicarsulfonic acid 60% aqueous solution 1.0g ammonia water (ammonium hydroxide 25% aqueous solution) 2.0g water 1
ft and adjusted to pH 7.0 with 50% sulfuric acid.

Fill an automatic processor with the color developing tank solution, bleach-fixing tank solution, and stabilization processing tank solution, and add the above-mentioned color developing replenisher and bleach-fixing replenisher every 3 minutes while processing the commercially available color photographic vapor sample. A running test was conducted while replenishing solutions A, B and stable replenisher through the bellows pump. The amount of replenishment is 190 mL per 1nf of color vapor to the color development tank, and 5 mL each of bleach-fix replenisher A and B to the bleach-fix tank.
0 mJ2, and 250 mft of water washing alternative stabilization treatment replenisher was replenished to the stabilization treatment tank. The stabilization tanks of the automatic developing machine are the first and second stabilization tanks in the direction of the flow of the sample, and the final tank is replenished, and the overflow liquid from the final tank is sent to the previous stage. This overflow liquid was also allowed to flow into the rice bowl at the previous stage.

The processing was carried out over 30 days with the same amount of color vapor per day until the total replenishment amount of the color developer was equal to the color developer tank liquid capacity.

However, here, we will use the normal process [L Process No. 01] that does not use a nitrogen gas separation device as a comparison process, and as shown in Fig. 7, the nitrogen gas and oxygen gas discharged from the nitrogen gas separation device can be mixed. Processes (Processing Nos. 2 to 7) were performed in which gases with various ratios of oxygen gas and nitrogen gas were introduced into the processing liquid using a device piped to the substrate. Here, treatment No. 6 is a treatment in which no oxygen gas is mixed at all, and treatment No. 7 is a treatment in which the nitrogen gas inlet is placed above the surface of the treatment liquid.

The results are shown in Table 1, and the deterioration of the color developer due to oxidation was evaluated based on the concentration of sulfite ions in the color developer. Table 1 also lists the purity of nitrogen gas, which was determined by measuring the concentration of oxygen in the gas discharged to the surface of the treatment liquid.

Table 1 As is clear from Table 1, if only the nitrogen residue taken out from the nitrogen gas separation device is introduced into the color developing solution (Processing No. 6), it will be introduced above the surface of the color developing solution (Processing No. , 7) shows that the deterioration of the color developing solution is extremely small. In addition, experiments in which the purity of nitrogen gas was varied by mixing oxygen gas revealed that the purity of nitrogen gas was 90%.
% or more, it can be seen that deterioration of the color developer can be dramatically reduced.

Next, in place of the nitrogen gas separation device of this invention,
The purity of nitrogen gas in deoxygenated air was measured to be 86% according to the method described in Publication No. 2-9351.
Met.

(Effects of the Invention) As described above, this invention separates nitrogen gas from the air using a nitrogen gas separator and introduces it into the processing solution of an automatic processor. Dissolved oxygen in the processing liquid is expelled, and oxidation of the processing liquid can be effectively suppressed. In addition, since nitrogen gas is separated from oxygen and used in the air, it is inexpensive and easy to handle since there is no need to replenish the introduced gas.

[Brief explanation of the drawing]

FIG. 1 is a schematic diagram of a silver halide photographic light-sensitive material processing apparatus to which the present invention is applied, and FIG. 2 is a schematic diagram of a silver halide photographic light-sensitive material processing apparatus to which the present invention is applied to an automatic developing machine equipped with an exposure device. 3 and 4 are diagrams showing other embodiments of the introduction of nitrogen gas, FIG. 5 is a schematic diagram of a silver halide photographic light-sensitive material processing apparatus in which a nitrogen gas separation device is built into an automatic processor, and FIG. 6 7 is a diagram showing another embodiment in which nitrogen gas and oxygen gas are introduced, and FIG. 7 is a diagram showing a processing apparatus for a comparative experiment. In the drawings, reference numeral 1 is an automatic developing machine, 6 is a developer tank, and 14 is a nitrogen gas separation device. Procedural amendment (method) April 17, 1985 1 Indication of the case 1988 Patent Application No. 014567 2 Title of the invention Silver halide photographic light-sensitive material processing device 3 Person making the amendment Relationship to the case Patent applicant address 1-26-2 Nishi-Shinjuku, Shinjuku-ku, Tokyo Name (1)
27) Roku Konishi Photo Industry Co., Ltd. 4 Agent Address: 151 Address: 2-23-1 Yoyogi, Shibuya-ku, Tokyo Submit Figure 7 as attached. Above Figure 7 February 8, 1988 Director General of the Patent Office Kunio Ogawa 1 Description of the case Patent Application No. 014567 of 1988 2 Title of the invention Silver halide photographic light-sensitive material processing apparatus 3 Person making the amendment Case and Relationship Patent applicant address 1-26-2-6 Nishi-Shinjuku, Shinjuku-ku, Tokyo Target of amendment "Detailed description of the invention" and "Brief description of drawings" column (1) Page 8 of the description 5th line “Printer, etc.”
should be corrected to "printers and others." (2) “0,5~
100A, preferably 3 to 5AJ, is corrected to ``0.5 to 100A, preferably 3 to 5AJ.'' (3) In the same book, page 18, line 5, ``sewing in this air'' is corrected to ``in this air.'' (4) “I went” in line 7 of page 20 of the same book as “I did”
I am corrected. (5) In the same book, page 22, line 9, "magnesium chloride hexahydrate" is corrected to "magnesium chloride hexahydrate." (6) In the same book, page 24, line 6, “(60% aqueous solution”) was replaced with “(
60% aqueous solution)”. (7) In the same book, page 24, line 15, ``gone'' is left in the r line.J
I am corrected. (8) In the third line of page 25 of the same book, "deeds" is corrected to "deeds." (9) "Done" J in the first line of page 25, line 8 of the same book.
I am corrected. (10) Table 1 on page 26 of the same book is corrected as follows. (11) In the same book, page 28, line 7, "4th" is corrected to "Figure 4."

Claims (2)

[Claims] (1) Equipped with an automatic processor for developing silver halide photographic light-sensitive materials and a nitrogen gas separation device for separating and introducing nitrogen gas from the air into the automatic developer, and a processing liquid tank of the automatic processor. A processing apparatus for silver halide photographic light-sensitive materials, wherein at least one of the processing liquid tanks has a nitrogen gas inlet below the level of the processing liquid in the processing liquid tank. (2) The silver halide photographic light-sensitive material processing apparatus according to claim 1, wherein the nitrogen gas separation apparatus separates oxygen and nitrogen gas in the air by a separation means such as a gas separation membrane or a molecular sieve.