JPH0233145A - Aeration device and automatic developing machine provided with the same - Google Patents

Abstract

PURPOSE:To efficiently convert divalent Fe into trivalent Fe in a bleaching solution by mixing the bleaching solution from a bleaching solution tank into air in an air flow pipe and introducing a mixture into a separation column communicated with the tank. CONSTITUTION:The separating column 21 communicated with the bleaching solution tank 5 is supplied with the air through the pipe 22 connected with the upper part of the column 21 by driving an air pump 23 and this air is mixed with bleaching solution from the lower part of the tank 5 through a pipe 24, resulting in bringing the solution into sufficient contact with the air and converting the divalent Fe into the trivalent Fe at good efficiency. This air- mixed solution is introduced through the upper part of the column and separated from the air in the inside of the column 21. The solution accumulated in the column 21 is returned to the tank 5 through a pipe 25. Since the communicating position of the column 21 with the pipe 25 is set lower than the communicating position of the column 21 with the pipe 22, the air is prevented from returning to the tank 5, occurrence of bubbles in the tank 5 is alleviated, and the air is prevented from leaking out in the outside.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to an aerage sun device that improves the desilvering properties and color recovery properties of a bleaching solution, and an automatic processor equipped with this aerage sun device.

[Prior Art] Film development, particularly color film development, generally consists of development, bleaching (re-halogenation treatment), fixing, water washing, stabilization and drying, and the number of development steps is greater than that for black and white films.

For this reason, in recent years, the entire process of film development has been automated using a transport mechanism, and after the film has passed through processing tanks for developer, bleach, fixer, washing water, and stabilizer, it is passed through a dryer. Developed film is stacked.

This development process deteriorates the desilvering and recoloring properties of the bleaching solution, so in order to improve the bleaching performance of the bleaching solution, an airage device is installed in the bleaching solution tank to supply air to the bleaching solution. , Fe2 value in the bleaching solution is returned to trivalent value to improve desilvering and color restoration defects.This is generally called aeration, and is a process in which the oxygen content in the air chemically bleaches. It is used to promote the action.

However, in this type of airage sun device, a large number of air bubbles accumulate on the surface of the bleach tank, and the overflowing air bubbles may scatter into the developer tank, adversely affecting the development of the film. For this reason, the partition wall between the bleach solution tank and the developer tank is made high to prevent air bubbles on the liquid surface from scattering or flowing into the developer tank, and this is one of the reasons that prevents the development device from becoming more compact. ing.

For this reason, as disclosed in JP-A No. 60-19445, for example, it is possible to downsize the developing device by providing a temperature-controlled chamber separate from the bleach bath and feeding air into the temperature-controlled chamber. There are some that supply air without overflowing bubbles.

[Problem to be solved by the invention] By the way, since this device sends air into the temperature-controlled room, the amount of air supplied is small (it is insufficient to return the divalent Fe in the bleaching solution to trivalent Fe, so it is not effective). It is not possible to improve desilvering and recoloring defects.

In addition, the upper part of the bleach solution is communicated with the temperature control tank, and the bleach solution is sucked in from the bottom of the temperature control tank and returned to the bleach tank, and air is supplied from below the temperature control tank. As a result, the air supplied to the temperature control tank is sucked together with the bleach solution and mixed into the bleach tank, and air bubbles generated in the temperature control tank enter the bleach tank, and eventually the bubbles cause the bleach solution to leak out and prevent the developing process. There is a risk of it getting mixed into the liquid tank.

This invention was made in view of the above-mentioned circumstances, and the object of the first invention is to efficiently return the divalent Fe in the bleaching solution to the trivalent Fe,
It is an object of the second invention to provide an aeration device that can improve desilvering properties and color restoration properties, and a further object of the second invention is to provide an automatic aeration device that is capable of reliably preventing the developer from entering the developer tank. The purpose is to provide a developing machine.

[Means for Solving Problem 1] In order to solve the above problem, the airage in device of the first invention includes a separation column that separates and stores bleaching solution from air and is connected to the bleaching solution tank, The bleaching solution from the bleaching solution tank was mixed with the air supplied to the separation column via a vibrator and introduced, and the introduction position of the separation column was set at a position higher than the communication position with the bleaching solution tank. It is a feature.

Further, the automatic developing machine according to the second aspect of the invention is characterized in that the bleaching solution tank disposed close to the developer tank is equipped with the airage unit.

[Function] In the air bleaching device of the first invention, a bleaching solution is supplied from the bleaching solution tank into the air of a vibrator, mixed and introduced into a separation column connected to a bleaching solution tank. Therefore, the amount of air in the bleaching solution increases, and the divalent Fe in the bleaching solution is efficiently returned to the trivalent Fe, thereby effectively improving desilvering and color recovery defects.

Further, the introduction position at which the bleaching solution mixed with air is introduced into the separation column is higher than the communication position between the bleaching solution tank and the separation column, and the air and bleaching solution are reliably separated in the separation column. Therefore, the air will not return to the bleach tank, the generation of bubbles in the bleach tank will be reduced, and the outside will be prevented from getting wet.

Further, the automatic developing machine of the second invention is equipped with the air laser simulating device in the bleach tank disposed close to the developer tank, and effectively improves desilvering and restoration defects as described above. In addition, since no bubbles are generated in the bleaching solution tank, the bleaching solution will not be mixed into the developing solution tank due to leakage of bubbles.

[Example] Hereinafter, an example of the present invention will be described in detail based on the accompanying drawings.

FIG. 1 is a schematic diagram of an automatic developing machine incorporating an airage printing device of the present invention.

In the figure, reference numeral 1 denotes a main body of a photosensitive material processing apparatus that blocks external light. One side of this main body 1 is equipped with a film supply section 2, and the other side is equipped with a film take-out section 3. There is. Between the film supply section 2 and the film take-out section 3, that is, inside the main body 1 of the apparatus, a color developing solution tank 4, a bleaching solution tank 5, a fixing solution tank 6, a washing or stabilizing solution tank 7, and a drying solution tank are arranged in order. A predetermined amount of processing liquid is stored in each of these processing tanks.

A waste liquid tank 9.10 is arranged at the bottom of the processing liquid tank, and is configured to store overflowing waste liquid. Further, the waste liquid may be discharged to the outside without being stored in the apparatus main body 1 in this manner.

From the film supply section 2, a color developer tank 4, a bleach solution tank 5,
A conveying path 12 is formed by a conveying mechanism 11 in the fixing liquid tank 6, the washing or stabilizing liquid tank, the drying section 8, and the film take-out section 3, and the film 13 is conveyed along this conveying path 12.

FIG. 2 shows an airage date device 20 of this embodiment.

In this aeration device 20, a separation column 21 is arranged on the back side of the bleaching liquid tank 5, a vibrator 22 is connected to the upper part of the column 21, and this vibrator 22 is equipped with an air pump 23 for supplying air. . Furthermore, a bleaching solution is supplied to the vibrator 22 from the lower part of the bleaching solution tank 5 via a vibrator 24, so that the bleaching solution is supplied to the air inside the vibrator 22.

The flow rate of air supplied to the vibrator 22 by driving the air pump 23 is determined by the amount of bleaching solution supplied.
For example, 0.2 m/sec or more, preferably 0.5 to 100 m/sec.
m/sec, 1 to 50 m/sec, more preferably 2 to 30 m
/second, preferably by mixing the bleaching liquid with air so that the bleaching liquid becomes granular or atomized.

The bleaching solution mixed with the air is introduced from the top of the separation column 21 via the vibrator 22, and the separation column 21 separates the air and the bleaching solution, and the bleaching solution is stored.

The lower part of the separation column 21 is connected to the bleach solution tank 5 via a vibrator 25.
A filter 27 is provided at the vibrator opening 25a of the separation column 21, through which the separated bleaching liquid is returned to the bleaching liquid tank 5 by the drive of a pump 26 provided in the vibrator 25. The second stage serves to remove impurities, deposits, etc. from the circulating bleaching solution.

The filter 27 is provided with a mounting part 27a, and the filter 27 is screwed onto the vibrator opening 25m from above the separation column 21 by holding the mounting part 2a, making it easy to attach and detach and improve the workability of replacement. .

Further, as shown in FIG. 3, the filter 27 may be circular, and may be removably provided at the bottom 21a of the separation column 21 so as to cover the vibe opening 25a.

The separation column 21 is made of a light-shielding material to prevent light from hitting the bleaching solution inside, and the upper surface of the column 21 is made of a light-shielding material.
1b is formed and communicates with the atmosphere.

The airage date device 20 of this embodiment configured as described above operates as follows.

Air is supplied to the separation column 21 connected to the bleach tank 5 via a vibrator 22 by the operation of an air pump 23, and air is supplied from below the bleach tank 5 via a vibrator 24. bleach solution is mixed in.

Since the bleaching solution is mixed with the air in this way, the bleaching solution comes into sufficient contact with the air, and the Fe2 valence of the bleaching solution can be efficiently returned to the Fe 3 valence.

The bleaching solution mixed with this air is introduced from the upper part of the separation column 21, separated into air and bleaching solution within this separation column 21, and stored in the zero separation column 21 where the bleaching solution is stored. The bleaching solution is pumped into the vibrator 25 by operating the pump 26.
The bleaching solution is returned to the bleaching solution through the filter 2.
It is cleaned with water. Since the mixing position of the bleaching solution introduced into the separation column 21 is higher than the communicating position of the vibrator 25 that returns this bleaching solution to the bleaching solution tank 5, air can be returned from the vibrator 25 to the bleaching solution tank 5. Prevented.

Therefore, air from aeration does not get mixed into the bleaching solution tank 5 and bubbles are not generated, and the bleaching solution does not leak from the bleaching solution tank 5 and mix into the developer type 4 due to the bubbles.

In addition, the pump 2 is attached to the vibrator 25 that returns the bleaching solution to the bleaching solution tank 5.
6 is provided, but this pump 26 may not be provided, and by mixing the bleaching solution from the vibrator 24 into the air of the vibrator 22, the bleaching solution can be circulated and returned.

FIG. 4 shows another embodiment, in which a separation column 31 has a plurality of baffles 32 arranged horizontally and alternately, and a bleaching solution mixed with air is introduced from a position below the baffles 32 via a vibrator 22. As a result, the air and the bleaching solution are separated, but since the air containing moisture comes into contact with the baffle plate 32, the air and the bleaching solution are reliably separated, and the bleaching solution is transferred to the separation column 3.
It is stored in 1. The bleaching solution stored in this separation column 31 is returned to the bleaching solution tank 5 via a vibrator 25, and the introduction position of the vibe 22 that introduces the bleaching solution in this separation column 31 is at a position higher than the liquid level of the bleaching solution tank 5. , so that the bleaching solution is automatically returned to the bleaching solution tank 5 without using a pump.

The introduction position of the vibrator 22 for introducing the bleaching solution into the separation column 31 is as shown in FIG.
It can also be provided on the lower side.

Figures 6 and 7 show other embodiments of the separation column.

The separation column 41 shown in FIG. 6 has activated carbon 4 in its center.
2, and a bleaching solution mixed with air is introduced into a position below the activated carbon 42. When air containing moisture passes through activated carbon 42, it is separated into air and bleaching solution, and the separated bleaching solution falls and is stored in separation column 41. moreover,
The odor of the bleaching solution is absorbed by the activated carbon 42 to prevent air from leaking to the outside.

The separation column 41 shown in FIG. 7 is constructed in the same manner as the separation column shown in FIG. 6, and a vibe 22 for introducing a bleaching solution is connected to the bottom of the separation column-1. This vibe 22
As with the separation column 41, the introduction position is higher than the communication position of the vibrator 25 that returns the bleaching solution to the bleaching solution tank 5.

The connection between the vibrator 22 and the vibrator 24 can be configured as shown in FIGS. 8 to 11.

In FIG. 8, a vibrator 24 for supplying a bleaching solution and a vibrator 22 for supplying air are formed to have the same diameter, and the angles at the mixing portion of both are the same.

In FIG. 9, the diameter of the vibrator 22 that supplies air is larger than that of the vibrator 24 that supplies bleaching solution, and the angle at the mixing section between the two is more acute than that shown in FIG.

Figure 10 shows a vibrator 24 that supplies bleaching solution in the same way as Figure 9.
Therefore, the vibrator 22 for supplying air is formed in the same shape, but the vibrator 24 joins the vibrator 22 at a substantially right angle.

Figure 11 shows the vibrator 2 that supplies bleaching solution in the same way as Figure 10.
4, the vibrator 22 that supplies air is formed in the same shape and has a large diameter, and the vibrator 24 joins the vibrator 22 at approximately right angles, but the bleaching liquid from the vibrator 24 is distributed approximately at the center of the air. They are supposed to meet up at the department.

[Effects of the Invention] As explained above, the airage sun device of the first invention introduces the bleaching solution from the bleaching solution tank into the air of the vibe into the separation column connected to the bleaching solution tank. Because of this, the amount of air is increased relative to the bleaching solution, and the divalent Fe in the bleaching solution is efficiently returned to the trivalent Fe, thereby effectively improving desilvering and color recovery defects.

In addition, the introduction position where the dew-like bleaching solution is introduced into the separation column is higher than the communication position between the bleaching solution tank and the separation column, and the separation column separates the air and the bleaching solution. Air is no longer returned to the bleach bath, the generation of bubbles in the bleach bath is reduced, and leakage to the outside is prevented.

Further, the automatic developing machine of the second invention is equipped with the above-mentioned airage device in the bleaching solution tank disposed close to the developer type, and effectively desilveres and decolorizes defects as described above. In addition, since no bubbles are generated in the bleaching solution tank, it is possible to prevent the bleaching solution from leaking into the developing solution due to the bubbles.

[Brief explanation of the drawing]

FIG. 1 is a schematic sectional view of an automatic processor equipped with an airage device of the present invention, FIG. 2 is a schematic diagram of an aeration device of the present invention, and FIGS. 3 to 7 are other embodiments of the separation column. Schematic diagrams illustrating examples, FIGS. 8 to 11 are diagrams illustrating embodiments of a mixing section of a vibrator. In the figure, numeral 4 is a color developer tank, 5 is a bleaching solution tank, 20 is an aeration device, 21, 31.41 is a separation column, 22
, 24 and 25 are vibrators, 23 is an air pump, and 26 is a pump. -to d

Claims (1)

[Claims] 1. A separation column for separating and storing a bleaching solution from air is provided in communication with a bleaching solution tank, and the bleaching solution from the bleaching solution tank is added to the air supplied to this separation column via a pipe. An aeration device characterized in that the separation column is introduced in a mixed manner, and the introduction position of the separation column is set at a position higher than the communication position with the bleaching liquid tank. 2. An automatic developing machine in which a bleach tank is disposed adjacent to a developer tank, and the bleach tank is equipped with the aeration device according to claim 1.