JPH0264639A - Automatic developing machine for silver halide color photographic sensitive material - Google Patents

Abstract

PURPOSE:To prevent resticking of dust to color paper regardless of the execution of a rapid processing by respectively specifying the transporting speed of the photosensitive material to be processed and the time for immersion in a color developing soln. and providing a mechanism for cleaning up the processing liquid. CONSTITUTION:The mechanism for cleaning up the processing liquid is provided to the automatic developing machine having the constitution in which the transporting speed of the photosensitive material to be processed is 5 to 100cm/ min and the time for immersion in the color developing soln. in at least a color development processing is <=30 seconds. The processing liquid housed in a processing liquid tank 20 is supplied to the processing tank 10 through a supply pipe 22, etc., by driving of a feed pump 21. The processing liquid overflowing from the processing tank 10 or the processing liquid discharged from the processing tank 10 is released from the upper part of the processing tank 20 through a discharge pipe 23. The resticking of dust to color paper is prevented in this way regardless of the execution of the rapid processing.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to an automatic developing machine used to develop silver halide color photographic light-sensitive materials, and more specifically, to an automatic developing machine used to develop silver halide color photographic light-sensitive materials. An automatic developing machine having an improved processing liquid purification mechanism that eliminates the need for complicated cleaning maintenance of filters used for removing the filter, and a photographic light-sensitive material,
In particular, the present invention relates to an automatic developing machine having a mechanism for wiping off the edge of a photographic material to prevent color vapor chips and the like from getting mixed into a processing solution.

[Prior Art] In large automatic processors used in large-scale intensive processing facilities called large labs and relatively small automatic processors called minilabs, processing liquid is stored in a processing tank. The photosensitive material is placed in a storage rack, guided to a processing tank using a transport rack, etc., and then immersed in a processing liquid for processing.
It's normal. Moreover, in large-scale automatic processors for large-scale processing for commercial use, a processing liquid purification mechanism using a filter mechanism as shown in Fig. 4 is installed in the middle of the processing liquid circulation path to remove suspended matter in the processing liquid. There is.

In the filter mechanism shown in Fig. 4, a discharge pipe having an opening on the side is provided at the center of a cylindrical frame A, and a cylindrical filter C is placed around this discharge pipe. The structure is such that the processing liquid circulated from the processing tank is guided into the outer space of C, and after being filtered by conduction as shown by the arrow, it is stored in the processing liquid tank D.

The above-mentioned large-scale automatic developing machine for commercial use uses the above-mentioned filter C.
It is required that maintenance be done every day by taking it out and cleaning it.

[Problem to be solved by the invention] Fine dust that adheres to the photographic light-sensitive material to be processed, such as chips generated when cutting the leading edge of photographic paper or both sites, and airborne particles. If floating dust or the like is mixed in the processing solution, it will damage the image surface and adversely affect the processing performance. In the method of immersion treatment in which a large amount of processing solution is stored in a tank type processing solution, most of the suspended matter is discharged from the processing tank along with the overflowing processing solution due to the specific gravity. Direct contact with the photographic material can be avoided to a large extent, but floating objects can come into contact with the image surface of the photographic material and damage it, especially in processing systems where the processing tank is slit-shaped. There is a big risk.

Therefore, as explained in the previous section, conventional large-scale automatic processors for commercial use have been equipped with a filter mechanism in the processing liquid circulation path, but cleaning the filter every day is very cumbersome. It is.

On the other hand, in small automatic developing machines that have a small daily throughput and are used at different frequencies, the conveyance speed of the color vapor to be processed is less than 5 cm+/++in, and the immersion time in the color developer in the color development process is also short. Since it takes about 45 seconds to 3 minutes, there is no risk that dust etc. attached to the color paper will be removed and attached to the color vapor. However, silver halide color, which has a color development process and a bleach-fixing process, In an automatic developing machine for photosensitive materials, the speed of conveying the photosensitive material to be processed is 5 to 100 ci/min, and at least the immersion time in a color developer in the color development step is 30 seconds or less. It has been found that the dust removed from the color vapor to be treated tends to re-adhere to the color vapor.

The present invention has been created in view of the above-mentioned problems, and the main purpose of the present invention is to clarify an automatic developing machine for rapid processing having a processing liquid purification mechanism. Another object of the present invention is to clarify an automatic developing machine having a mechanism for preventing photographic paper chips etc. from getting mixed into the processing solution. or will become clear from the attached drawings.

[Means for Solving the Problems] The automatic developing machine of the present invention that achieves the above objects is: (1) An automatic developing machine for silver halide color photographic light-sensitive materials having a color development step and a bleach-fixing step, in which the light-sensitive material to be processed is transported. The speed is 5 to 1.00 cm/sin, the immersion time of the photosensitive material to be processed in the color developer is at least 30 seconds or less in the color development step, and a processing solution purification mechanism is provided; (1) color development step; In an automatic developing machine for silver halide color photographic light-sensitive materials having a bleach-fixing step, the conveyance speed of the light-sensitive material to be processed is 5 to 100 cm/a.
+in, and at least the color development fj! of the photosensitive material to be processed in the color development process. It has a structure in which the residue immersion time is 30 seconds or less, and the processing liquid tank is divided into two or more compartments by a partition frame, and a filter is attached to the partition frame, and the purified processing liquid after the filter is processed. It has a processing liquid purification mechanism that supplies the tank; ■ It has a plurality of partition frames, and each partition frame is equipped with a filter of a different type or the same type. ■ The treatment liquid tank is divided vertically. ■ Processing liquid tanks are divided horizontally; ■ In the conveyance path for photographic light-sensitive materials.

At least a mechanism for wiping the side edges of the photographic light-sensitive material is provided; (1) wiping of the side edges of the photographic light-sensitive material is carried out in a wet manner; and (2) wiping of the side edges of the photographic light-sensitive material is carried out in a dry manner. Features.

[Function] According to the present invention, in an automatic developing machine for silver halide color photographic light-sensitive materials having a color development step and a bleach-fixing step, the conveyance speed of the light-sensitive material to be processed is 5 to 100 cm/+i.
In an automatic developing machine having a configuration in which the immersion time in the color developing solution is at least 30 seconds or less in the color development step, a processing solution purification mechanism is installed, so that even though the color paper is processed quickly, dust and dirt can be removed from the color paper. Since the water level of the processing liquid returned from the processing tank to the processing liquid tank is located above the filter, most of the suspended C mixed in is transferred to the compartment on the front stage of the filter. The processing liquid floats inside the filter, and the processing liquid descends or moves through the filter due to its own weight, and the processing liquid is filtered without clogging the filter.

Furthermore, the wiping mechanism for the side edges of the color paper uses a wet or dry method to remove chips and the like generated during cutting of the color paper, thereby preventing them from being mixed into the processing liquid.

[Example] Next, each aspect of the present invention will be described in detail in accordance with the accompanying drawings.

FIG. 1 is a schematic diagram showing one embodiment of the present invention. Throughout the country, 10 is a processing tank, the type and capacity of which stores a certain processing solution, and the photographic material is placed in the processing solution. A method of transporting and immersion treatment.

- Various methods are included according to the various processing methods to be applied, such as a method of supplying and discharging the processing liquid every time the processing is performed, a method of constantly circulating the processing liquid, etc., and it is not limited to specific methods. However, in the present invention, the capacity of the two treatment tanks is small;
In particular, those in which the treatment tank has a slit shape (Japanese Patent Application Nos. 158645/1986 and 1586/1986)
46)).

20 is a processing liquid tank that stores the processing liquid. The present invention also includes an embodiment in which the processing liquid tank 20 is a buffer tank and a main processing liquid tank is provided at a subsequent stage.

The processing liquid stored in the processing liquid tank 20 and reaching %
The processing liquid supplied to the processing tank 10 and overflowing from the processing tank 10 or the processing liquid discharged from the processing tank 10 is discharged from the upper part of the processing liquid tank 20 through the discharge pipe 23.

The processing liquid tank 20 is divided into upper and lower compartments by a filter 31 attached via a partition frame 30 .

In the state illustrated in FIG. 1, the level of the processing liquid in the processing liquid tank 20 is located above the filter 31, or in other embodiments, the level shown is at the time of discharge of the processing liquid. It is preferable that the liquid level is at a position inside the filter 31 or at a position below the filter 31 and close to the lower surface of the filter 31 after a certain period of time has passed after the discharge.

By setting the liquid level as described above, it is possible to prevent the processing liquid from coming into contact with air, which is effective in preventing oxidation of the processing liquid. Further, as shown in FIG. 1, in an embodiment where the liquid level is above the filter 31, it is preferable to cover the surface of the treated liquid droplet with a floating lid or the like.

The partition frame 30 may also serve as a fixing means to prevent the filter 31 from sinking or rising, or the partition frame 30 may be provided in multiple stages, or it may be movable so that the filter can be adjusted according to the amount of processing liquid to be stored. It is preferable that the mounting number 31 is configured so that the level can be changed.

Furthermore, a plurality of partition frames 30 are provided, and each of the partition frames 30 is provided with filters 3 of the same kind or different kinds having different materials, roughness, etc.
1 is also preferably attached.

Furthermore, in an embodiment in which a single filter 31 is disposed, it is preferable to use filters of different materials, roughness, etc., stacked in layers.

Although not shown, there is a risk that the filter 31 may fall off the partition frame 30 depending on the material and surface area of the filter 31 used, so the filter 31 may fall off the partition frame 30 after being attached to the frame.
It is preferable to configure it so that it is fixed to.

In the illustrated embodiment, most of the suspended matter mixed in the processing liquid floats above the filter col, and the processing liquid descends in the filter 31 according to gravity and is purified.

In order to further extend the life of the filter 31, the surface of the filter 31 is coated with a coating material and only this coating material is replaced periodically, or multiple layers of coating material are provided and the coating material is periodically replaced. It is also preferable to peel off the outer coating material.

Furthermore, although not shown, it is also preferable to provide a mechanism for scraping the top surface of the filter 31.

FIG. 2 shows a mode in which the processing liquid tank 20 is divided horizontally with a filter 31 as a boundary, and the various embodiments explained according to FIG. 1 are based on the system shown in FIG. This also applies as appropriate.

FIG. 3 shows a mechanism for wiping the edges of photographic material.

A roll-shaped photosensitive material 40 stored in a magazine (not shown) is guided to a conveyance system in the apparatus according to the rotation of a take-out roller 41, but there is a guide in the middle of the conveyance path that adjusts according to the width of the photosensitive material. A member 42 or a guide roller is provided, and at the rear stage,
A pair of wiping members 43 are disposed that move in accordance with the movement of the guide member 42 or the guide roller in the width direction, and wipe off the side edges of the photographic material 40 passing through it.
Remove any adhering chips, etc. Wipe [mouth]
Preferably it is about 1-2 mm.

The wiping member 43 uses a felt-like or sponge-like member having a shape as shown in the figure, but may also be a rotating roller.

Further, the wiping member 43 may be in a dry state, or may be supplied with a small amount of water or the like to wipe it off in a wet manner.

[Effects of the Invention] According to the present invention, in an automatic developing machine for rapid processing, (1) filter clogging is unlikely to occur, so-called filter cleaning is not necessary for a long period of time, and (2) color vapor is removed by using a wiping mechanism. In particular, since it effectively prevents dust, etc. attached to the surface of the
In the case of the method of developing in a slit-shaped processing tank, there is no adverse effect on processing performance such as damaging the image surface, and it also has the advantage of extending the life of the filter, compared to the conventional method. The benefit is that the maintenance burden is greatly reduced.

Further, since the filter mechanism is provided in the processing liquid tank, it is advantageous in reducing the size of the entire automatic developing machine compared to the conventional system in which the filter mechanism is provided in the middle of the processing liquid circulation path.

If a device is equipped with a mechanism for wiping the side edges of the color vapor, chips generated during cutting of the color vapor are removed before the color vapor is immersed in the processing liquid in the processing tank. This is not only effective in preventing contamination of the processing liquid, but also reduces the burden on the filter, which is beneficial for extending the life of the filter.

[Brief explanation of the drawing]

1 and 2 are schematic cross-sectional views showing embodiments of the processing liquid purification mechanism of the present invention, FIG. 3 is a perspective view showing a wiping mechanism, and FIG. 4 is a filter in a conventional large automatic developing machine for commercial use. It is a sectional view showing a mechanism. In the figure, each symbol indicates the following. 10: Processing tank 20: Processing liquid tank 21: Pump 22; Processing liquid supply pipe 23: Processing liquid discharge pipe 30: Partition frame 31 Nifilter 40; Photographic light-sensitive material 41: Take-out roller 42 Guide member 43: Wiping member Patent applicant Nobuaki Sakaguchi, Chief Brewer, Manager, and Patent Attorney, Konica Co., Ltd.

Claims (1)

[Scope of Claims] 1. In an automatic developing machine for silver halide color photographic light-sensitive materials having a color development step and a bleach-fixing step, the conveyance speed of the photosensitive material to be processed is 5 to 100 cm/min, and at least the color development step has a configuration in which the photosensitive material to be processed is immersed in a color developing solution for 30 seconds or less, and
An automatic developing machine for silver halide color photographic materials, characterized by having a processing liquid purification mechanism. 2. In an automatic developing machine for silver halide color photographic light-sensitive materials having a color development step and a bleach-fixing step, the conveyance speed of the light-sensitive material to be processed is 5 to 100 cm/min, and the speed of the light-sensitive material to be processed is at least 5 to 100 cm/min. It has a configuration in which the immersion time in the color developer is 30 seconds or less, and
A silver halide collar having a processing liquid purification mechanism that divides a processing liquid tank into two or more compartments by a partition frame, attaches a filter to the partition frame, and supplies the purified processing liquid after the filter to the processing tank. Automatic developing machine for photosensitive materials. 3. The automatic developing machine for silver halide color photographic materials according to claim 2, wherein a plurality of partition frames are provided, and each partition frame is provided with a filter of a different type or the same type. 4. The automatic developing machine for silver halide color photographic materials according to claim 2, wherein the processing liquid tank is divided vertically. 5. The automatic developing machine for silver halide color photographic materials according to claim 2, wherein the processing liquid tank is divided horizontally. 6. An automatic developing machine for silver halide color photographic materials, characterized in that the transport path of the photographic materials has a mechanism for wiping off at least the side edges of the photographic materials. 7. The automatic developing machine for silver halide color photographic light-sensitive materials according to claim 6, wherein the wiping of the side edges of the photographic light-sensitive materials is carried out in a wet manner. 8. The automatic developing machine for silver halide color photographic light-sensitive materials according to claim 6, wherein the wiping of the side edges of the photographic light-sensitive materials is carried out in a dry manner.