JPS5991440A - Method for automatically developing photographic material - Google Patents

Abstract

PURPOSE:To prevent fur by using a disinfectant for washing water in a washing process. CONSTITUTION:Fur is essentially composed of filamentous bacteria and suspended matters in water attached to them, and creosote and cresol are selected for use in a disinfectant to sterilize the bacteria. An X-ray photographic film F is developed by sliding between developing racks in a developing bath 1, and sent to a fixing bath 2, and then to a washing bath 3. A cresol soln. 11 is sucked into a feed pipe 7 from a receptacle 10 by the action of an ejector, and its flow rate is controlled with a needle valve 12. The cresol soln. 11 mixed with the feed water exerts sterilization effect to prevent fur. When a flowmeter 6 is arranged after the addition of the cresol soln. 11, occurrence or attachment of fur in the meter 6 is also prevented to facilitate confirmation of flow rate.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an automatic processing method for photographic materials, and more particularly to an automatic processing method for photographic materials that can prevent limescale from forming in water and washing water in the process.

For example: When X-ray photographic JILM & optical materials are developed after exposure, they are often processed in an automatic processor. That is, in a developing tank, a fixing tank, a washing tank, etc., the image is developed through the steps of development, fixing, washing, and drying. When developing using the sound of an automatic processor, it is usually desirable to drain the water from the washing tank at the end of each day's work. 4. However, in facilities such as designated emergency hospitals that urgently perform X-ray photography and require the results, it is necessary to keep an automatic processor always ready for processing (standby). In such a case, the washing water cannot be drained and must be used continuously.I7. Must be. If the state of not washing water and draining continues for a long time, limescale will form in the washing tank, causing various problems. That is, when photographic film is processed, limescale adheres to the film surface, which interferes with the interpretation of the photograph.Also, when the film passes through the washing tank, slipping occurs in the washing rack, leading to transport failure accidents. In addition, the washing tank and washing rack become dirty, making cleaning a hassle.Furthermore, if a solenoid valve is used in the water pipe, limescale can clog the solenoid valve and prevent the washing water from being sent. This causes various problems such as running out of water or not being able to stop the flushing water.

The present invention is intended to solve the problems peculiar to the automatic processing of photographic materials as described above, and its purpose is to provide a photographic printing method that can prevent limescale from forming in the washing water during the washing process. An object of the present invention is to provide a method for automatically developing materials.

Other objects of the invention will become apparent from the description below.

The above-mentioned object of the present invention is achieved by an automatic processing method for photographic material 11, which is characterized in that a disinfectant is used in the washing water in the washing step.

As the fungicide in the present invention, creosote and cresol are most preferred. Limescale is mainly composed of filamentous bacteria, and is formed by the adhesion of floating substances such as U in the water. Therefore, by sterilizing the filamentous bacteria that play a central role, the formation of water scale can be prevented. In order to sterilize it, the present invention uses creosote and cresol as the most preferred sterilizing agents.

The reason for this selection is as follows.

That is, the disinfectant in the present invention also includes chlorine and hypochlorite (hereinafter referred to as chlorine, etc.).However,
The use of large amounts of these substances not only adversely affects the photographic performance of the developed film due to the accumulation of chlorine ions, but also causes the following disadvantages. That is,
Since the existing washing tank is made of iron plates, there is a problem in that the tank corrodes when chlorine or the like is used, making it impossible to use chlorine or the like as a disinfectant for a long period of time. Therefore, it is possible to consider modifying the tank to a corrosion-resistant Aiga, but in that case, the cost of modification would be considerable. Therefore, it is desirable to use a non-corrosive disinfectant so that existing equipment can be fully utilized. There is also the issue of water pollution regulations. This is the first time that creosote and cresol are used.
This is the reason.

Next, in the present invention, it is determined that the automatic processor is always on standby and visible, and such a situation is particularly unfortunate, especially in designated hospitals. .

That is, at designated emergency hospitals, X-ray photography and development processing are always required. In such hospitals, cost must be carefully considered when selecting a disinfectant. Therefore, cresol, which is stocked in large quantities in hospitals for disinfection purposes and is inexpensive and easily available, may be used. Furthermore, if cresol waste used for hand disinfection is used, there will be no need for utility costs. This is the second reason for using cresol.

Furthermore, when cresol is used, the BOD component in the wastewater increases, so treatment of the wastewater after discharge outside the system must be considered, but designated emergency hospitals generally do not have these wastewater treatment facilities. There is no particular problem because it is.

Furthermore, the present invention is applicable not only to the processing of X-ray photographic film but also to the development of other photographic materials; however, in the case of multilayer color development processing, it is difficult to apply the , the application of the present invention is favorable 1
It's not right.

Hereinafter, examples of the present invention will be described in which cresol or Freon-Tora is used as a fungicide.

[Example 1] FIG. 1 is a schematic explanatory diagram showing an example of an apparatus for carrying out the method of the present invention. In the figure, 1 is a developer tank for X-ray photographic film F, which is placed in an automatic processor installed in a hospital, for example. Sent to 2. Next, it is sent to the washing tank 3. A washing rack 4 is provided in the washing tank 3.

5 is a flushing water supply device, and 6 is a rotor type flow meter provided on the supply pipe γ. 8 has a filter 9 inside
This is a Frerasia water purifier with a built-in water purifier. 10 is a container containing a cresol liquid 11f. From the container 10, the cresol liquid 11 is sucked into the supply pipe γ by the action of an ejector, the flow rate is controlled by the needle valve 12, and the cresol liquid 11 is mixed into the supply water.

In this way, the cresol liquid 11 exhibits a bactericidal action and prevents scale from forming in the washing water. If the flow meter 6 is installed after the addition of the cresol liquid 11 as shown in the figure, the generation or adhesion of water scale inside the flow meter can be prevented and the flow rate can be easily checked.

In the above, the cresol liquid 11 is supplied by the action of an ejector, but the supply method is not limited to this, for example, a line mixer ν on the supply pipe γ.

- (not shown), etc., are provided. Cresol liquid 11
can also be added using a pump (not shown) and mixed and stirred.

[Example 2] Fig. 2 is a schematic cross-sectional view showing another example of the apparatus for carrying out the method of the present invention, and a schematic cross-sectional view showing the inside of the washing tank as described above.

In the figure, parts with the same numbers as in FIG. 1 indicate members with the same names.

The difference from Fugoten-1 is that creosote granules are used as a disinfectant. Creosote is washed in tank 3
It is housed in a container 14 which is suspended by a hanging fitting 13 inside. The container 14 is formed into a box shape using a wire mesh of about 100 meshes (for example, one equivalent to 5US316 is used as the mesh), and the granular creosote is stored in the container 14 and washed with water. When exposed to water, creosote's bactericidal action prevents limescale buildup.

The efficacy of creosote is approximately 20 to 30% in the container 14.
When filled with granular creosote and left in contact with washing water, limescale formation could be prevented for about 7 to 10 days.

The embodiments of the present invention have been described above, and according to the present invention, it is possible to prevent limescale from forming in the rinsing water in the rinsing step of the developing process for photographic materials. Even if this water stain prevention measure is taken, there is no abnormality in the developing processability of the film.

In addition, the transportability of the film is improved because no limescale is generated.
This will also help prevent accidents. Furthermore, the washing tank and washing rack can be prevented from becoming dirty, and the automatic developing machine can be cleaned easily.

[Brief explanation of the drawing]

FIG. 1 is a schematic explanatory diagram showing one embodiment of the apparatus for carrying out the method of the present invention, FIG. 2 is a schematic sectional view showing another embodiment of the apparatus for carrying out the method of the present invention, and FIG. FIG. 3 is a schematic sectional view showing the inside of the washing tank.

Claims (1)

[Claims] 1. An automatic development method for photographic materials, characterized in that a sterilizer is used in the washing water in the washing step.