JPS60121448A - Water washing device of photographic developing machine - Google Patents

Abstract

PURPOSE:To prevent abnormality of the photographic capacity by washing a carried with heat exchanging water used for temperature control of a development processing liquid tank to prevent the carried from bringing processing liquid components into another development processing liquid tank. CONSTITUTION:A magazine 18 where undeveloped photosensitive materials 2 are stored is placed in a holding part 17, and the front end part of photosensitive materials 2 is supported on an endless belt 14 by a clip and is processed which passing each processing tank from a developing tank 5 and is separated from the endless belt 14 in a taking-out part 4. The temperature of a developer is detected by a sensor 25 and is held at a prescribed temperature by water supplied from a supply tube 20 to a heat exchanger 19. Water discharged from the heat exchanger 19 is stored in a tank 22 from a discharge tube 21 and passes a sprinkler tube 27 from a water leading tube 26 and is jetted to wash the endless belt 14 or photosensitive materials 2. When the washed endless belt 14 is transferred to the first stage of development processing thereafter, the processing liquid stuck in the preceding processing is not mixed into the developing tank 5.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) This invention relates to a washing device for a transport carrier of a photographic developing machine which supports a photosensitive material on a transport carrier and develops it while transporting it through a developing solution tank. It is something.

(Prior Art) In a photographic processing machine that processes photosensitive materials, the photosensitive material is usually supported by a carrier, and is sequentially moved by this carrier to a processing liquid tank for development, fixing, washing, etc., and a drying section. , various processes are performed during this transportation.

It is well known that abnormalities in photographic performance may occur if the developing processing solutions used for developing, fixing, washing, etc., mix even slightly with each other. If this occurs, serious abnormalities in photographic characteristics may occur, so measures are taken to protect the outer wall of the processing tank to avoid contamination with other processing liquids as much as possible.

However, in a type of photo developing machine in which the photosensitive material is transported by a carrier, especially when the carrier is composed of an endless belt, a leader belt, a shot leader, a hanging type hanger, etc., the photosensitive material is Since the product is continuously transported and developed using a transport carrier, if it is not washed again after drying, processing solution components from the latter half of the processing process, such as the fixer, bleach solution, and stabilizer, will be brought back into the developer by the transport carrier. This may cause abnormalities in photographic performance.

In particular, recent advances in energy saving, cost reduction, and labor saving have led to the development of devices that eliminate the need to re-wash the transport carrier and require less replenishment of developer. The degree of mixing of the processing solution into the developer increases. In other words, when the amount of replenishment decreases, the amount of other processing liquids (reduced foreign matter) brought in by the carrier remains unchanged, so the rate of dilution with the replenisher decreases and the density increases, resulting in greater abnormalities in photographic characteristics. There is.

Furthermore, in recent years, there has been a desire to conserve water resources, and it has therefore become necessary to reduce the amount of water used for washing, and it has become common for photographic developing machines to be equipped with water-saving valves. In the past, when a photographic developing machine was in operation, the amount of water 5 to 10 times larger than the amount of washing water per unit area of photosensitive material specified in the standard processing conditions was continuously flowed, so there was very little dirt in the washing tank, and the developing solution The amount of other processing liquids carried into the container by the carrier was small and hardly a problem. However, as mentioned above, a device called a water-saving valve is installed so that the specified amount of water flows only while the water is in the washing tank, which causes the washing water to rapidly become contaminated, resulting in the contamination of thiosulfate ions and EDTAFe into the developer. JP-A-57-44148, JP-A-57-150847 and JP-A-5
This is as shown in the specifications of No. 8-120250 and No. 58-121036.

Furthermore, as shown in Japanese Patent Application Laid-Open No. 58-18630, a treatment method in which stabilization treatment is performed without washing with water has recently become mainstream. In this case, although sufficient color image stabilization of the photosensitive material has been achieved, the thiosulfate and EDTAFe salt concentrations in the stabilizing solution are extremely high.
This results in the particles being mixed into the developer due to transportation and the carrier.

In order to prevent these problems, a method was proposed in 1982-18 in which a conveyor belt was attached to the oxidizing agent solution to decompose the thiosulfate before drying.
Seen in specification No. 630.

Further, a method is usually adopted in which the conveyor belt of the conveyor carrier is rinsed with a small amount of fresh washing water. However, even though the amount of rinsing water is small, the amount of water that is continuously flowing is surprisingly large, and the amount cannot be ignored economically.

Therefore, there was a desire for economical water washing of the transport support, and in particular, there was a strong demand of the times for the emergence of water washing of the transport support without losing the economic significance of the waterless washing process.

(Object of the Invention) The present invention has been made in view of the above points, and reduces the carrying of processing liquid components into other developing processing liquid tanks by the transport carrier, prevents abnormalities in photographic performance, and prevents the occurrence of abnormalities in photographic performance. Our goal is to provide an economical photo processing machine washing device that conserves resources.

(Structure of the Invention) In order to achieve the above-mentioned object, the present invention provides a photographic processing machine in which a photosensitive material is supported by a carrier and developed while being conveyed through a developing processing liquid tank. The present invention is characterized in that the conveying and supporting body is washed with the heat exchange water used for temperature adjustment.

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

Fig. 1 is a sectional view of a photographic developing machine showing an embodiment in which the present invention is applied to a mustard photosensitive material, Fig. 2 is a sectional view taken along line II-II in Fig. 1 showing a rinse water washing device, and Fig. 3 is a rinsing water washing device. FIG.

In FIG. 1, reference numeral 1 indicates a main body of the developing machine, and the front side of the main body 1 of the developing machine is provided with a supply section 3 for supplying an undeveloped photosensitive material 2, and the rear side is provided with a supply section 3 from which the processed photosensitive material 2 is taken out. A take-out section 4 is provided respectively.

Between the supply section 3 and the take-out section 4, that is, the main body of the developing machine
Inside, from the supply section side to the take-out side, there are a color developing solution tank 5, a bleaching solution tank 6, a washing tank 7, a fixing solution tank 8, a washing tank 9, a stabilizing solution tank 10, a rinsing washing device 11, and a washing tank 10. A drying section 12 is provided. A large number of guide rollers 13 are disposed in each of the processing liquid tanks 5, 6, 7, 8, 9, 10, the rinsing device 11, and the drying section 12 between the supply section 2 and the take-out section 4. There is. An endless bell 14, which is a conveying carrier, is hung around the guide roller 13, and is driven by a drive motor 15 provided on the supplying section side. A liquid removal means (squeeze) 16 for removing the processing liquid adhering to the endless belt 14 is provided at the latter stage of each of the processing steps. I'm trying not to let it out.

A holding section 17 is disposed in the supply section 3, and a magazine 1B containing undeveloped photosensitive material 2 is disposed in the holding section 17.
The end portion of the photosensitive material 2 is supported by the endless belt 14 via a clip 14a, and is conveyed by the endless belt 14.

A heat exchanger 19 is disposed at the bottom of the developer tank 5, and cold water or hot water is supplied from a supply pipe 20. Developer tank 5
When the temperature of the developer tank 5 is too high, cold water is mixed into the heat exchanger 19 to lower the temperature, and when the temperature of the developer tank 5 is too low, hot water is supplied and the heat exchanger 19 exchanges heat with the developer to develop the liquid. Increase the temperature of the liquid. The heat exchange water that has undergone heat exchange in the heat exchanger 19 is discharged from a discharge pipe 21 to tanks 22 disposed on three sides of the rinse water washing device 11 . The supply pipe 20 has a solenoid valve 23 that is turned on and off depending on the set temperature of the developer.
is provided. This solenoid valve 23 is opened and closed when necessary to supply hot water or cold water to the heat exchanger 19 to maintain the temperature of the developer at a predetermined value.

The electromagnetic valve 23 is controlled by a control device 24 having a relay, and temperature information is inputted to the control device 24 from a sensor 25 provided in the developer tank 5.

The rinsing water washing device 11 contains a stabilizing liquid 4 which is a final treatment liquid tank.
It is arranged between f110 and the drying section 12. As shown in FIGS. 2 and 3, the rinsing device 11 is composed of a water pipe 26 and a water spray pipe 27. Water pipe 2
6 has one end 26a connected to the lower part of the tank 22, and the other end 26b connected to the water sprinkler pipe 27. The water sprinkling pipe 27 has a branch part 27a surrounding both sides of the endless belt 14, and a water fountain 28 is formed in the branch part 27a on the side surface facing the endless belt 14.

As a result, the water in the tank 22 is transferred from the water pipe 26 to the sprinkler pipe 2.
7, and this water is injected from the water fountain 28 of each branch part 27a due to its gravity.

Endless Bell) 14.

A take-up reel 29 is provided in the take-out section 4.
The photosensitive material separated from the endless belt 14 is wound up.

Note that a solenoid valve similar to the solenoid valve 23 may be provided between the ends 26a and 26b of the water conduit 26 to control the washing water.

Next, the operation of this embodiment will be explained.

A magazine 18 containing undeveloped photosensitive material 2 is located in the holding section 1.
7, and the photosensitive material 2 is conveyed with its leading end supported by the endless belt 14 with a clip 14a. A color developing solution tank 5, a bleaching solution tank 6, a washing tank 7, a fixing solution tank 8, a washing tank 9, and a stabilizing solution tank IO are successively arranged next to each other.
, are transported to a rinsing device 11 and a drying section 12, and are subjected to development processing therebetween. Then, the processed photosensitive material 2 is separated from the endless belt 14 at the take-out section 4 and wound onto a take-up reel 29.

In this processing step, the temperature of the color developing solution is detected by a sensor 25, and based on the change in temperature, the controller 25 detects the temperature of the color developing solution.
4, the electromagnetic valve 23 is operated to adjust the temperature of the color developing solution to a predetermined value by adjusting the hot water or cold water supplied from the liquid supply pipe 20 to the heat exchanger 19.

The hot water, which is supplied to the heat exchanger 19 and whose temperature has been increased or decreased by heat exchange with the color developing solution, is stored in a tank 22 through a discharge pipe 21 . The water in the tank 22 is supplied from the water pipe 26 to the sprinkler pipe 27, and this water is sprayed from the water spout 28 of each branch part 27a due to its gravity to wash the endless bell 14 or the photosensitive material 2.

The cleaned endless bell 14 transports the photosensitive material 2 to the drying section 12, and when the processing is completed, the photosensitive material 2 is wound onto a take-up reel 29 and the processing is continuously performed.

In this way, the endless bell 14 is washed between the final step of the developing process and the drying process, and then moves to the first step of the developing process. At this time, since the endless belt 14 has been washed, the color developing solution 5 will not be contaminated with the processing solution that has adhered to it during the pretreatment.

FIGS. 4 to 6 show other embodiments, and FIG. 3 shows a branch pipe 27a of the water spray pipe 27 extending so as to surround the photosensitive material 2 from both sides, together with an endless bell 14. Both sides of the photosensitive material 2 are also cleaned. Also,
In FIG. 5, the endless belt 14 is cleaned only once using the water spray pipe 27. Further, in FIG. 6, the endless belt 14 is washed with the water sprinkler pipe 27, and then further.
Both sides of the endless belt 14 are brought into sliding contact with the sponge member 30 to ensure cleaning.

In the embodiment described above, all of the heat exchange water after heat exchange coming out of the heat exchanger 19 is stored in the tank 22, but a portion may be stored and washed. Alternatively, the tank 22 may not be used and the cleaning may be performed directly.

Further, although it is more effective to develop the photosensitive material 2 by stabilizing the image and then drying the image without substantially washing with water, it is also applicable to a process in which washing with water is performed. An opening/closing device may be provided in the water conduit 26 so that the conveyance carrier can be cleaned with heat exchange water only during conveyance movement. In addition, the transport carrier is the endless bell) 1
4, and it goes without saying that a league belt, a short leader, a hanging type hanger, etc. may also be used.

(Effects of the Invention) As described above, in this invention, the transport carrier is cleaned with the heat exchange water used to adjust the temperature of the processing liquid tank. Carrying of processing solution components into the developer tank is reduced, and abnormalities in photographic performance are prevented from occurring. Furthermore, since cleaning is performed using the heat exchange water used to adjust the temperature of the treatment liquid tank, there is no need to secure a new supply source of cleaning water, which is economical as it protects water resources.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view of a photographic developing machine showing an embodiment in which the present invention is applied to color photosensitive materials, FIG. 2 is a cross-sectional view taken along line II-II in FIG. 1 showing a rinse water washing device, and FIG. 3 is a rinse water washing device. 4 to 6 show other embodiments, FIG. 4 is a cross-sectional view of the water spray pipe extending so as to surround the photosensitive material from both sides, and FIG. FIG. 6 is a cross-sectional view showing the endless belt being cleaned only once, and a perspective view showing the endless belt slidingly contacted with a sponge member. 3... Supply section 4... Take-out section 5... Color developing solution tank 6... Bleach solution tank 7... Washing tank 8... Fixing solution tank 9... Washing tank lO... Stabilizing liquid tank 11...Rinse water washing device 12...Drying section 12 14...Endless belt 19...Heat exchanger 22...Tank 26...Water pipe 27...Water pipe 28...・Fountain patent applicant Konishiroku Photo Industry Co., Ltd. 2 Figure 4 Figure 5 Figure 5. Sorry-m''' Figure 6

Claims (1)

[Claims] In a photographic developing machine in which a photosensitive material is supported by a transport carrier and developed while being transported through a developer tank, the transport carrier is washed with heat exchange water used to adjust the temperature of the developer tank. Photos taken like this, developing machine washing equipment.