JPH01273044A - Automatic development processing device for photosensitive material - Google Patents

Abstract

PURPOSE:To shorten the time for development processing by specifying the spraying direction of a processing liquid to a photosensitive material. CONSTITUTION:The processing liquid is filled in a processing tank up to the liquid level LP thereof. Sprockets 35a, 35b are rotated in the same direction to carry a film F through a carrying path PF into the tank where the film is processed; thereafter, the film is ejected. The high-pressure processing liquid is sprayed diagonally in the upstream direction of the direction perpendicular to the traveling direction of the film F to said film. Namely, the processing liquid is sprayed diagonally upward (downward) from nozzles at the point where the film F moves downward (upward). Further, the processing liquid is preferably sprayed downward with respect to the horizontal direction regardless of the carrying direction of the film F above the liquid level LP.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to an automatic developing machine for developing a silver halide photographic light-sensitive material (hereinafter referred to as a "photosensitive material"), and more specifically relates to an automatic developing machine for developing a silver halide photographic light-sensitive material (hereinafter referred to as a "light-sensitive material"), and more specifically, for speeding up the development process. The present invention relates to an automatic processing device suitable for.

[Background of the invention]

In general, the processing process for photosensitive materials consists of the basic steps of development and desilvering, and auxiliary steps such as stabilization and water washing. They are sequentially transported and immersed for treatment.

FIG. 8 shows a developing processing device that performs color negative development as an example of this automatic developing processing device.
1 bleaching tank 202, fixing tank 203 and 3 stabilizing tanks 204
a, 204b, and 204c are arranged adjacent to each other.

The photosensitive material is first carried into a developing tank 201 and subjected to development processing using a developing solution, and then carried out from the developing tank 201 and carried into an adjacent bleaching tank 202 where it is bleached using a bleaching processing solution. Afterwards, bleach tank 20
2, and is carried into the next fixing tank 203, and the process of carrying in and out of the processing tank is repeated to complete the development process.

When the photosensitive material is a roll film and requires mass processing, the roll film may be tied together to form a long belt and processed by sequentially moving processing tanks. A large number of drive rollers 210 are arranged at appropriate intervals within the developing processing apparatus, thereby conveying and moving the roll film. That is, the driving roller 210 is a roller that is provided with rollers on both sides and a sprocket between them, and is driven and rotated by the sprocket during the developing process.The sprocket is a roller that is provided with a bar hole provided at the center position of the plate-shaped leader member 101 as shown in FIG. 9. Both side edges 10 of the leader member 101 mesh with the ration 101a and
1b is adapted to convey the leader member 101 by being guided by the groove of the apparatus, and the leading end of an undeveloped 135 film F is pasted (spliced) on both sides of the rear end of the leader member 101. It moves along with the movement of the leader member 101, and processing in each processing tank is performed sequentially.

In recent years, there has been a strong demand in the industry to shorten the time required for processing in such automatic processing apparatuses, and as a means of achieving this, various methods have been proposed to increase the flow speed of the processing solution on the surface of the photosensitive material. The means of
As a specific method, a method of squirting a processing liquid onto the surface of a photosensitive material from a slit, nozzle, etc. was disclosed in U.S. Pat.
No. 4, Utility Model Publication No. 16354/1983, Japanese Patent Application Publication No. 52-163
No. 333, No. 55-52059, etc.

However, if the ejecting speed of the processing liquid is increased in an attempt to further speed up the processing using the disclosed method, there are problems such as the back surface of the photosensitive material coming into contact with the conveyance guide and becoming susceptible to scratches.

In addition to shortening the time required for such processing steps, the cross-over time, which is the time from when a photosensitive material is processed with the processing solution in one processing tank until it enters the processing solution in the next processing tank, is It is also known that shortening the time (also called time) is effective.

As a means of shortening the transfer time, it is possible to reduce the distance in the vertical direction between the free surface of the processing liquid and the two sides of the partition plate in the transfer section between two adjacent processing tanks. Such means include a process in which the processing liquid in one of the two adjacent processing tanks crosses over the partition plate and enters the adjacent processing tank;
This method has the disadvantage that the processing solution is easily contaminated and the processing quality deteriorates (hereinafter referred to as contamination).

[Purpose of the invention]

The processing liquid blowing means of the present invention is installed in an automatic processing apparatus, and the cross-over time can be reduced without damaging the photosensitive material or causing contamination even if the processing liquid is ejected forcefully in the processing tank. It is an object of the present invention to provide an automatic development processing apparatus that can shorten the time required for development processing.

[Structure of the invention]

The present invention aims to achieve the above object, and has a means for spraying a processing liquid onto the emulsion surface of a light-sensitive material, and the direction of the spraying of the processing liquid in the liquid is perpendicular to the running direction of the light-sensitive material. The sprayer is characterized by being tilted in the upstream direction than the processing solution, and has a means for spraying the processing solution onto the emulsion surface of the photosensitive material above the processing solution surface, and the spraying means has a direction in which the spraying is directed. This is achieved by an automatic processing apparatus for photosensitive materials, which is characterized by being tilted downward with respect to the horizontal direction.

〔Example〕

Figures 1 to 3 show a processing tank of an automatic processing apparatus showing a first embodiment. In this embodiment, the photosensitive material is carried into and out of the processing tank with the emulsion side facing down. be. 1st
The figure shows a side sectional view in the direction of conveyance of the photosensitive material, FIG. 2 shows a sectional view from the front, and FIG. 3 shows a plan sectional view. In the figure, 20 is a processing tank, and 30 is a rack mounted at a fixed position within the processing tank 20. A vibro 21 that communicates with a pump for spraying a processing liquid is provided on the lower side of the processing tank 20, and a pipe of this vibro 21 branches within the processing tank 20 and faces the emulsion surface of the photosensitive material. A pipe 22a provided with a nostle for blowing (-1 blow),
22b, 23a, and 23b are arranged at the front and rear in the direction in which the photosensitive material is transported.

On the other hand, the rack 30 is supported by side plates 3L32 on both sides, and the rotational force input to the driving force input section 33 is transmitted by power transmission systems 34a and 34b such as gears and chains.
Rotate sprockets 35a and 35b. The sprockets 35a and 35b mesh with the perforations 101a provided in the leader section 101 described above to drive the film, and are provided in the grooves 3 provided in the side plates 31 and 32.
L3]2.32L322 is the side edge 1 of the leader member 101
01b is also a guiding groove. sprockeso h35a, 35
Rollers 36a and 36b are rotatable on both sides of b, respectively. Further, a guide member 37 which also serves as a stay is provided between the side plates 31 and 32 to prevent the film from meandering.

38 is also a guide member that prevents the film from jumping out of the rack 30.

The processing tank 20 having such a structure is filled with processing liquid up to the liquid level Lp, and high-pressure processing liquid is sent from the vibro 21. Further, rotational force is transmitted from the driving force input section 33, and the sprockets 35a and 35b rotate in the same direction to carry the film F through the conveyance path PF shown in FIG. 1, and after finishing the processing, to carry it out. In the present invention, for the film in the transport path PF, in the processing liquid, the direction of the spray from the pipes 22 and 23 is tilted in the upstream direction rather than the direction perpendicular to the running direction of the film, and the film moves downward. At locations where the film is moving upward, the processing liquid is sprayed diagonally upward from the nozzle, and at locations where the film is moving upward, the processing solution is sprayed diagonally downward from the nozzle.

(Both are indicated by arrows in FIG. 1) In addition, outside the processing solution, the direction of spraying onto the emulsion surface from the pipes 22 and 23 is tilted downward with respect to the horizontal direction, regardless of the direction in which the film is conveyed.

(Similarly indicated by arrows in Figure 1) Figures 4(a) and 4(b) show enlarged views of the nozzle 24 provided on the wall of the pipe 22.23. The hole may be diagonally perforated, or a tooth-shaped protrusion may be separately provided diagonally.

5 to 7 show the processing tank of an automatic processing apparatus showing the second embodiment. In this embodiment, the photosensitive material is carried in and out of the processing tank with the emulsion side facing upward. be. FIG. 5 is a side sectional view in the direction of conveyance of the photosensitive material, FIG. 6 is a sectional view taken from the front, and FIG. 7 is a plan sectional view.

In the figure, 40 is a processing tank, 50 is a rack mounted at a fixed position in the processing tank 40, and the photosensitive material is sprayed onto the emulsion surface from the rack 50 side. The rack 50 is supported by side plates 51 and 52 on both sides, and the rotational force input to the drive force input section foot section 53 is transmitted by power transmission systems 54a and 54b such as gears and chains, and is transmitted to the leader member 1.
Rotate the sprockets 55a and 55b that drive the old sprockets.

Also, the side plate 5L52 has a side edge 101 of the leader member 101.
Groove portions 51L512, 52L522 for guiding b are provided.

Also, on the back side of the film along the conveyance path PF of the film F, there is a side plate 5], and a guide member 56 which also serves as a stay between 52.
a and 56b are opposite to the film emulsion side and are connected to the nozzle section 5.
Blowout kite parts 57a, 57b, 58a, with holes 9
58b is provided.

Blowout guide portions 57a, 57b, 5 with hollow insides
8a.

58b is connected to the vibro 1, and when the rack 50 is installed in a fixed position in the processing tank 40, the vibro 1 is connected to the communication pipe 41 provided in the processing tank 40, and the processing tank pressurized by an external pump is connected to the vibro 1. The liquid passes through the connecting pipe 41 and the vibro 1, enters the blowout guide section 57, 58, and enters the nozzle 59.
The processing liquid is sprayed onto the emulsion side of the film. With respect to the emulsion surface of the film F in the transport path PF in FIG.
The direction in which the processing liquid is blown out from the nozzle 59 is indicated by an arrow. Lp indicates the liquid level of the processing liquid, and as shown in the figure, the direction in which the processing liquid is sprayed from the nozzle 59 is tilted in the upstream direction rather than perpendicular to the running direction of the film, and the liquid is sprayed from the nozzle 59. Outside, the direction of the nozzle is determined so that the spray is tilted downward with respect to the horizontal direction.

〔Effect of the invention〕

As is clear from the above examples, the direction in which the processing liquid is sprayed by a nozzle or the like against the emulsion surface of the film is conventionally perpendicular to the processing liquid; On the other hand, since it is tilted upstream from the perpendicular direction, the relative spraying speed of the processing liquid to the emulsion surface becomes high, and when the spraying speed is increased, the processing liquid is sprayed within the processing tank. It has the effect of causing or promoting effective convection and stirring, allowing new processing liquid to come into contact with the emulsion surface and enhancing the processing effect. In addition, conventionally, the processing solution was not sprayed onto the emulsion surface outside the processing solution.In contrast, the present invention allows the processing solution to be sprayed onto the emulsion surface at the transition between processing tanks. = t, thereby substantially shortening the loss over time, and since the spraying direction is tilted downward from the horizontal direction, it also has the effect of preventing contamination. By providing a spraying means according to the present invention in at least one of the processing tanks, the effect of shortening the processing time can be obtained.

[Brief explanation of the drawing]

1 to 3 show a processing tank showing a first embodiment of the present invention, FIG. 1 is a sectional view from the side, and FIG.
The figure shows a sectional view from the front side, and FIG. 3 shows a plan sectional view. FIGS. 4(a) and 4(b) both show cross-sectional views of the nozzle portion. 5 to 7 show a processing tank according to a second embodiment of the present invention, and FIG. 5 is a side view, and FIG. 8 is a configuration diagram showing an example of a conventional automatic developing processing apparatus. 9 shows the film connected to the leak member. 20.40...Processing tank 22.23...Pipe 24.59...Nozzle 30.50...Rack 35.55...Sprocket 37.38.56...Guide member 57.58...・Blowout guide part

Claims (2)

[Claims] (1) It has a means for spraying the processing liquid onto the emulsion surface of the photosensitive material, and the spraying direction of the spraying means in the liquid is inclined toward the upstream direction than the direction perpendicular to the running direction of the photosensitive material. Automatic processing equipment for photosensitive materials. (2) It has a spraying means for spraying the processing liquid onto the emulsion surface of the photosensitive material which is above the processing liquid level, and the spraying direction of the spraying means is inclined downward with respect to the horizontal direction. An automatic processing device for photosensitive materials characterized by the following.