JP2731975B2 - Processing of photosensitive materials for photography - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a method for processing a photosensitive material for photography such as a negative film.

<Prior Art> Photographed photosensitive materials that have been photographed are subjected to processing such as development, bleaching, bleach-fixing, fixing, washing, and stabilization. For the purpose of improving the efficiency and reducing the size of the processing apparatus, there has been disclosed a technology for processing using a processing tank having a narrow processing path (Japanese Patent Application Laid-Open Nos. 62-89052 and 63-131138). , Id 63
JP-216050, JP-A-64-26855, JP-A-01-13054
No. 8, etc.).

By the way, in a negative film, which is a typical example of a photographic photosensitive material, perforations for transporting and positioning the film in a camera are formed along both side edges of the film. During processing, the processing liquid flows through the perforations.

In this case, in the processing tank having the narrow processing path as described above, the processing liquid hardly flows in the narrow processing path, but the processing liquid flows by passing through the negative film and flows through the perforations. I do. The flow of the processing liquid in the perforations as described above makes the flow of the processing liquid irregular, and there is a disadvantage that processing unevenness occurs in an image near the side of the perforations.

This processing unevenness is, for example, development unevenness in processing with a developing solution, desilvering unevenness in processing with a bleaching solution, a fixing solution, and a bleach-fixing solution, and residual color in processing with washing water and a stabilizing solution. It is unevenness and unevenness of the residual main drug.

Such processing unevenness tends to occur more remarkably as the ratio of the total length of the narrow processing paths to the total length of the processing paths in the processing tank increases.

Also, by installing a partition member such as a pair of blades for shielding the processing path in a narrow processing path in the processing tank, a liquid composition gradient (concentration gradient) of the processing liquid is formed over the entire length of the processing path. Techniques for improving efficiency and photographic properties have been disclosed (Japanese Patent Application Laid-Open No. 02-130548,
02-155667).

In this case, the negative film passes between the pair of blades while being in contact with the blade surface. However, as described above, the negative film is formed with perforations, so that the sliding resistance with the blades is increased, and transportability is increased. Is reduced.

In particular, the negative film is mainly conveyed by being pulled by a plate-shaped leading member (leader). However, when the sliding resistance with the blade increases, the tension applied to the negative film increases, and the edge shape of the perforation decreases. This results in a curved deformation, which promotes an increase in sliding resistance with the blade.

<Problem to be Solved by the Invention> An object of the present invention is to provide a processing method of a photosensitive material for photography capable of preventing the occurrence of processing unevenness of the photosensitive material for photography and further improving transportability. It is in.

<Means for Solving the Problems> Such an object is achieved by the present invention of the following (1).

(1) The processing tank has a narrow processing path, has a plurality of processing chambers connected by the narrow processing path, and the total length of the narrow path relative to the front path length in the processing tank is 20
% Or more and less than 98%, and when processing the photographic photosensitive material using a processing tank in which a blade capable of shielding the processing path is installed in the narrow processing path, the photographic photosensitive material is A method for processing a photosensitive material for photography, wherein perforations are formed at one or both side edges, and the formation density of the perforations is within two per one screen.

<Action> In the present invention, the photographic photosensitive material to be processed has perforations formed at one or both ends at a formation density of 2 or less per screen. As compared with the above, the formation density of perforations is smaller, and therefore, the occurrence of processing unevenness caused by the flow of the processing liquid in the perforations when passing through the narrow processing path is reduced.

Further, even when a blade capable of shielding the processing path is provided in the narrow processing path, the density of perforations is low, so that an increase in the transport resistance of the photosensitive material for photography is prevented.

<Constitution of the Invention> Hereinafter, a preferred embodiment shown in the accompanying drawings will be described in detail for a method for processing a photosensitive material for photography according to the present invention.

FIG. 1 is a sectional front view showing a configuration example of a comparative photosensitive material processing apparatus. Photosensitive material processing device shown in the figure
1A is a housing 3A, an outer tank wall material 40A installed in the housing 3A, and an inner tank wall material 50A installed inside the housing 3A.
And a processing tank 2A composed of

The housing 3A has a box shape and plays a role as a thermostat. That is, the housing 3A is filled with warm water 30A, and the processing liquid Q is supplied through the outer tank wall material 40A.
For example, it is heated to about 30 to 38 ° C. This hot water 30
The temperature of A is usually about 30 to 50 ° C., and is set to be equal to or slightly higher than the temperature of the target processing solution.

In addition, circulation of the hot water is performed in order to keep the temperature of the hot water 30A in the housing 3A constant.

That is, a water supply port 31A for hot water 30A is provided at the bottom of the housing 3A.
The hot water heated by a heater (not shown) is supplied from the water supply port 31A into the housing 3A, and approximately the same amount of hot water as the supply amount is discharged from the drain port 32A.

The housing 3A is made of, for example, a material having heat insulation such as hard vinyl chloride or polysulfone,
Alternatively, a heat insulating material such as asbestos, felt, aluminum foil, glass wool, or the like is preferably bonded to the inner wall and / or outer wall of the housing 3A.

An outer tank wall material 40A is fixedly or detachably attached to an upper portion of the housing 3A.

The outer tank wall material 40A has a U-shape whose bottom is curved in an arc shape, and its lowermost end is separated from the bottom of the housing 3A by a considerable distance. This allows the outer tub wall material
The flow of warm water at the left and right sides of the 40A in FIG. 1 is enabled.

A partition may be provided between the lowermost end of the outer tub wall material 40A and the bottom of the housing 3A, and a temperature difference may be provided between the left and right hot water of the outer tub wall material 40A in FIG. For example,
When the processing tank 2A is a developing tank, the hot water on the left side (first half of the development) in FIG.
By improving the development characteristics by setting the temperature to about high,
In particular, the sensitivity can be slightly improved.

The outer tank wall material 40A is preferably made of a material having excellent thermal conductivity and having chemical resistance to the processing liquid Q. For example, stainless steel, copper or a copper-based alloy, Hastelloy, titanium, etc. Metals.

At the center of the inside of the outer tank wall material 40A, an inner tank wall material 50A is provided.
Preferably, it is detachably inserted and installed. Thus, a processing path 60A having a slit-shaped cross section, that is, a narrow and long processing path is formed between the inner surface of the outer tank wall material 40A and the outer surface of the inner tank wall material 50A.

In the configuration example shown in FIG. 1, almost 100% of the processing path in the processing tank 2A is a narrow processing path 60A.

The slit width (W) of the processing path 60A can be defined in relation to the thickness of a photographic photosensitive material (hereinafter, represented by a film F) described later.
It is preferably about 30 times.

For example, when the film F is a negative film having a width of 35 mm and a thickness of 0.2 mm, W is preferably set to about 0.5 to 4.0 mm. It is preferable that W be constant over the entire area of the processing path 60A. However, W may be gradually increased or decreased toward the downstream side in the transport direction of the film F in order to adjust the processing speed or the like.

Note that an arc-shaped groove 55A corresponding to the outer peripheral surface of a feed roller described later is formed at the lower end of the inner tank wall material 50A.

A handle 57A used for attaching and detaching the inner tank wall material 50A is attached to an upper portion of the inner tank wall material 50A. For example, during maintenance such as cleaning of the processing tank 2A, the inner tank wall material 50A is removed by holding the handle 57A.

The inner tank wall material 50A may be made of a heat-insulating material such as polyvinyl chloride, polysulfone, polyethylene, foamed polyethylene, foamed polyurethane, or asbestos, felt, etc. It is preferable to join a heat insulating material such as glass wool and aluminum foil.

A feed roller 9A for transporting the film F is installed inside the bottom of the outer tank wall material 40A so as to be stretched in the front-rear direction in FIG. The film F that has descended on the processing path 60A is wound around the outer peripheral surface of the feed roller 9A, is reversed, and rises. In the lower part of the feed roller 9A, a processing path 60A is formed between the outer peripheral surface of the feed roller 9A and the arc-shaped wall surface at the bottom of the outer tank wall material 40A.

Crossover rollers 10A and 11A are installed on the film entrance side and the film exit side above the processing tank 2A, respectively. The crossover roller 10A is for introducing the film F from the previous process to the processing path 60A, and the crossover roller 11A is for feeding the film F that has exited from the processing path 60A to the next step.

The feed roller 9A and the crossover rollers 10A and 11A may be any of freely rotating rollers and drivingly rotating rollers.

In transporting the film F in the photosensitive material processing apparatus 1A, the leading end of the film F is connected to a leader film (not shown) or the trailing end of another film to be processed in advance, and the film F is pulled by these films to travel through the processing path 60A. It is preferable to be configured to be conveyed. Further, the film F itself may be conveyed while being held between a pair of rollers (not shown).

The processing path 60A is filled with the processing liquid Q up to the liquid level L, and when processing the film F, a fresh processing liquid (hereinafter, referred to as a replenisher) is supplied. The supply of the replenisher is preferably carried out from the inlet side of the film F in the processing path 60A in the case of a developer, a bleaching solution, a bleaching / fixing solution and a fixing solution, though it depends on the type of the processing solution. That is, a liquid supply port 7A for discharging a replenisher is provided on the upper side of the processing path 60A on the film F entrance side, while a liquid discharge port 8A for discharging the processing liquid Q by overflow is provided on the output side of the film F on the processing path 60A. The replenisher supplied at the upper liquid level L and supplied from the liquid supply port 7A flows in the U-shaped processing path 60A in the same direction as the transport direction of the film F (parallel flow). Approximately the same amount of the deteriorated processing liquid is discharged from the discharge port 8A.

As described above, there is an advantage that the sensitivity of the film F is improved by making the processing liquid (particularly, the developing liquid) a parallel flow.

The supply amount of the replenisher varies depending on conditions such as the type and size of the film F to be developed, the volume of the processing path 60A, and the composition of the processing solution. For example, in the case of a color negative film, 135 m It is good to use about 2 to 30 ml.

Now, in the photosensitive material processing apparatus 1A, a plurality of pairs of blades 15 that shield the processing path 60A along the longitudinal direction of the U-shaped processing path 60A and divide the processing path 60A into a plurality of portions are provided.

Thus, the processing path 60A is partitioned into a plurality of small spaces 61A to 69A.

The pair of blades 15 are attached to the outer tank wall material 40A and the inner tank wall material 50A such that the tips thereof come into close contact with each other when the film F does not pass. The leading end is pushed open by the entry of the film F (the leader 25 when the film F is towed and transported by the leader 25).

FIG. 8a shows an enlarged view of the blade 15 in FIG. This blade 15 is also provided in the apparatus of the present invention shown in FIG.

As shown in FIG.8a, the blade 15 is
And a base portion attached to the inner tank wall material 50A (in the case of a photosensitive material processing apparatus 1B described later, a block body 4g), and a tip portion (thin portion) whose thickness gradually decreases toward the tip. Used in combination of sheets. Also, blade 15
As shown in FIG. 8b, the thickness may be substantially the same from the base to the tip.

At this time, the average inclination angle of the blade 15 with respect to the surface of the film F is generally preferably about 10 to 70 °, and particularly preferably about 20 to 45 °.

The length from the base to the tip of the blade 15 may be equal to or longer than the effective slit width (w) of the processing path 60A. Particularly preferably, it is 15 to 25 mm which is 3 to 10 times.

The length of the overlapping portion between the tips of the blades 15 when the film F is not passing through the pair of blades 15 installed opposite to each other is preferably about 1 to 10 mm, particularly about 2 to 5 mm. .

Also, the thickness of the tip of the blade 15 may be 1/100 or more of the length of the blade 15 or 0.5 mm or more.
It may be 1 to 1.5 mm.

The contact surface pressure between the blades 15 is preferably about 0.001 to 0.1 kg / cm ² , particularly preferably about 0.005 to 0.02 kg / cm ² .

With the above conditions, the adhesiveness between the tips of the blades 15 when the film F does not pass is ensured, and the flow of the processing liquid Q can be effectively blocked.
Further, the flow of the processing liquid Q when passing through the film F can be made very small.

The material of the blade 15 may be any material that does not adversely affect the processing liquid, for example, natural rubber, chloroprene rubber,
Various rubbers such as nitrile rubber, butyl rubber, fluoro rubber, isoprene rubber, butadiene rubber, styrene butadiene rubber, ethylene propylene rubber, neoprene rubber, neoprene butadiene rubber, silicone rubber, soft polyvinyl chloride, polyethylene, polypropylene, ionomer resin, fluoro resin And elastic materials such as soft resins such as silicone resins and polyamides. Elastomers such as Lavalon, Thermolan, Elastoran, Hytrel, and Sunplane can also be used.

Normally, the adhesion between the blades 15 is given by the elastic force of the blades. However, a magnetic material is blended in the tip of the blade 15 (for example, a rubber magnet), and It is also possible to give or increase the adhesion by sucking.

Even if the film F slides on the blade 15, there is almost no adverse effect such as scratches on the emulsion surface, but if this cannot be ignored, or if the sliding resistance is to be reduced, the inner side of the blade 15 will not be used. A countermeasure may be taken by performing a smoothing treatment on the side surface or a surface treatment such as coating a lubricant such as silicone or Teflon on the inner surface.

In addition, the blade 15 is not limited to a pair, and as shown in FIG. 8c, the base of one blade is fixed to one of the tank wall materials 40A or 50A, and the tip of the blade 15 is the other. May be configured to be in close contact with the wall material.

Further, as shown in FIG. 8d, it is also possible to adopt a configuration in which the tank wall material on the side opposite to the blade fixing side protrudes into the processing path 60A, and the tip of the blade 15 comes into close contact with the protruding portion 45. In this configuration, the sliding resistance of the film F is smaller than the configuration shown in FIG. 8c.

In the structure shown in FIGS. 8c and 8d, it is preferable to transport the film F so that the emulsion tank of the film F comes into contact with the blade 15.

By providing such a blade 15, the following operations and effects are produced.

At the time of processing the film F, as described above, the processing liquid Q having substantially the same amount as the supply amount of the replenisher flows through the processing path 60A from the small space 61A.
It flows sequentially to 69A, but the flow in the opposite direction is blocked.

Therefore, the processing liquid Q in the long processing path 60A is reliably formed and maintained in the liquid composition gradient. That is, the processing liquid in the small space 61A having the liquid supply port 7A is the freshest, and the degree of deterioration sequentially increases in the subsequent small spaces 62A to 68A.
The processing liquid in the small space 69A with 8A is the most deteriorated.

Further, the blade 15 comes into contact with the surface of the film F, and an effect of wiping off the adhering liquid (hereinafter, referred to as a squeeze effect) is generated.

As described above, the processing efficiency of the film F is improved by the formation of the liquid composition gradient and the squeezing effect of the blade 15 in the processing path 60A, and the sensitivity is particularly increased.

Further, since the processing efficiency is improved, the replenishment amount of the replenisher is reduced.

Since the supply of the replenisher is stopped after the processing of the film F is completed, the flow of the processing liquid Q between the adjacent small spaces becomes
Blocked by blade.

Thus, the processing liquid Q in each of the small spaces 61A to 69A has a liquid composition gradient similar to the above, and this state is as follows.
After the processing is completed, the processing is continued for a long time (for example, 10 minutes to 50 hours).

Therefore, when processing the film F next time, the processing path 60
Since a solution composition gradient has already been formed in the processing solution Q in A, even if processing is performed immediately, the film F has high photographic properties, particularly high sensitivity.

Note that the blade 1 is used to shield the processing path 60A.
Although the use of 5 is preferred because of its high shielding effect, the invention is not limited to this, and another configuration of the shielding means may be used.

Further, in the present invention, there is no need to provide any shielding means represented by the blade 15.

FIG. 2 is a cross-sectional side view showing a configuration example of a photosensitive material processing apparatus for performing the present invention, in particular, an apparatus for performing a desilvering process. FIG. 3 is a cross-sectional view taken along line III-III in FIG. Figure, 4th
FIG. 2 is a perspective view showing a configuration near a passage in the photosensitive material processing apparatus of FIG. The photosensitive material processing apparatus 1B shown in these figures performs bleaching, bleach-fixing, and fixing.
It is a device that can be performed with one processing layer.

As shown in FIG. 2, the photosensitive material processing apparatus 1B has a vertically long processing tank 2 having a predetermined volume. A rack 3 is detachably loaded into the processing tank 2. This rack 3
Has a pair of side plates 31, 32, and between these side plates, several block-shaped members (hereinafter, referred to as block bodies) 4a to 4o
Is fixedly installed.

The block bodies 4a to 4o form five processing liquids 6A, 6B, 6C, 6D and 6E which are spaces for processing the film F.

In addition, vertically adjacent processing chambers 6A and 6B, 6B and 6C, 6C and 6D
And between 6D and 6E, passages 71, 72, 73 and 74, which are narrow processing paths connecting the two processing chambers, are formed,
Similar passages 75 and 76 for carrying in and out the film F are formed in the upper portions of the processing chambers 6A and 6E, respectively.

The blocks 4a and 4b are vertically long members provided on both surfaces of a partition member 17 described later.

The blocks 4c and 4d form passages 75 and 76 respectively with the upper portions of the blocks 4a and 4b, and position the leader 25 so as to maintain the engagement of the leader 25 with the sprocket 8 described below. It is a member for regulating.

The block bodies 4g and 4k are members that are removably fitted to the concave portions 42 formed in the block body 4a, respectively.
Passages 71 and 72 are formed therein, respectively.

The blocks 4h and 4l are also members that are removably fitted into the recesses 42 formed in the block 4b, and have passages 74 and 73 formed therein, respectively.

A seal member 11 made of the same material as a blade 15 described later is fixed to a portion of each of the blocks 4g, 4k, 4h, and 4l that comes into contact with the inner wall of the processing tank 2.

The block body 4e is a member serving as a guide for guiding the leader 25 to the entrance of the passage 71 when the leader 25 moves from the processing chamber 6A into the passage 71.

The block body 4f is a member serving as a guide for guiding the reader 25 that has exited the passage 74 between a guide 9 described later and the nozzle 54 in the processing chamber 6E.

Each of the blocks 4i and 4j is a sprocket 8
This is a member for regulating the position of the reader 25 so as to maintain the engagement of the reader 25 with the reader 25.

Blocks 4m, 4n and 4o are blocks 4c and 4d
A processing chamber 6C is formed with the lower end of the processing chamber 6C.
A member serving as a guide for regulating the U-shaped transport path of the reader 25 in the inside. Among them, block body 4o
Has a curved surface 44 for turning the reader 25 upside down. The curved surface 44 also serves to regulate the position of the leader 25 so as to maintain the engagement of the leader 25 with the sprocket 8.

These block bodies 4a to 4o are made of, for example, plastics such as polyethylene, polypropylene, polyvinyl chloride, polycarbonate, polyphenylene oxide (PPO), ABS resin, phenolic resin, polyester resin, polyurethane resin, ceramics such as alumina, stainless steel, and titanium. And other hard materials such as metals. In particular, it is preferable to be made of plastics such as polypropylene, PPO, ABS resin, etc. from the viewpoint of excellent moldability, light weight and sufficient strength.

In the illustrated example, each of the block bodies 4a to 4o is a solid member, but may be configured as a hollow member (for example, manufactured by blow molding).

Each of the processing chambers 6A to 6E is filled with a predetermined processing liquid described later (not shown).

In the illustrated configuration, the volume per processing chamber is 20 to
The volume may be about 3000 ml, and may be as small as about 20-500 ml.

The width of the passages 71 to 76 (effective slit width W) is preferably about 5 to 50 times the thickness of the reader 25.

With such a width, the reader 25 and the film F can be transported without any trouble.

In the present invention, the total length of the narrow passages 71 to 76 is
Those that account for 20% or more, especially 40% or more of the total length of the processing routes within the target are targeted. The reason is that if it is less than 20%, the ratio of time to be processed in the narrow passages 71 to 76 is small, and even when a conventional film is processed, the processing unevenness which is a problem to be solved by the present invention is reduced. This is because it does not occur originally.

Each passage 71-74 has a pair of blades 15 as shown.
Is installed.

This blade 15 is the same as described above,
It is attached to the blocks 4g, 4k, 4h and 4l such that the tips of the film 25 and the film F do not pass when they do not pass through.

In this case, a separate member 15 may be attached to each block 4g, 4k, 4h and 4l, but each block 4g,
The blades 15 and 4k, 4h, and 4l can be integrally formed by, for example, two-color molding or insert molding.

The sealing member 11 also has a block body 4g,
4k, 4h and 4l and the seal member 11 may be integrally formed by, for example, two-color molding or insert molding.

In the illustrated example, one pair of blades 15 is installed in each of the passages 71 to 74. However, two or more pairs of blades 15 may be installed in one passage. In this case, the passage
The shielding effect and squeeze effect of 71 to 74 are further increased, and the replenishment amount can be further reduced.

Also, in the photosensitive material processing apparatus 1B, as described above,
A shielding means may be provided instead of the blade 15, or
It is not necessary to provide such a shielding means at all.

Such a photosensitive material processing apparatus 1B is provided with a transport means for transporting the film F so as to sequentially pass through the processing chambers 6A to 6E.

As shown in FIGS. 2 and 4, sprockets 8 are installed in the processing chambers 6A to 6E, respectively.

Each of these sprockets 8 has a side plate
It is pivotally supported by 31 and 32, and is located substantially at the center of each processing chamber in the film width direction.

The sprockets 8 installed in the processing chambers 6A, 6B, 6D and 6E are housed in cutout grooves 43 formed in the block bodies 4a and 4b, and a part of the sprockets 8 is processed in the processing chambers 6A, 6B, 6D and 6E.
Exposed inside 6E.

The drive mechanism of the sprocket 8 is as shown in FIG.
A bevel gear 83 fixed to a predetermined position of a main shaft 82 extending in the vertical direction in the figure and a bevel gear 84 fixed to one end of the rotating shaft 81 of the sprocket 8 mesh with each other, and a driving source such as a motor (not shown) By rotating the main shaft 82 in a predetermined direction by the operation (2), the sprocket 8 is rotated.

The constituent material of the sprocket 8 is preferably one having durability and chemical resistance to the processing liquid.
Rigid polyvinyl chloride, polypropylene, polyethylene,
Various resins such as ABS resin, PPO, nylon, polyacetal (POM), phenolic resin, polyphenylene sulfide (PPS), polyether sulfone (PES), polyether ether ketone (PEEK), Teflon, ceramics such as alumina, stainless steel, titanium , Hastelloy or other metals having corrosion resistance, or a combination thereof.

As shown in FIG. 5, rollers 85 that freely rotate with respect to the rotation shaft 81 are provided at both ends of the sprocket 8 of the rotation shaft 81.

The roller 85 is for guiding a film connected to the reader 25, and has a so-called conical shape in which a central portion in the film width direction is narrowed.

In the vicinity of the block bodies 4m and 4n,
The roller 85 that freely rotates in contact with the back surface of the film F
A roller 10 similar to the above is installed.

By providing such rollers 85 and 10, the transportability of the film F is improved.

The rollers 85 and 10 are provided as needed, and all or a part of the rollers may be omitted.

Sprocket 8 and passage in processing chambers 6A, 6B, 6D and 6E
A guide 9 that guides the reader 25 and regulates the transport path of the film F is provided between 71 and 74.

The guide 9 is a plate-like member made of the same material as that of the above-mentioned block body, and an opening 91 passing through the guide is formed substantially uniformly.

Thus, the processing liquid can be circulated and the circulation of the liquid in the processing chamber is promoted, so that the processing efficiency is improved.

Note that the guide 9 may be provided partially along the transport path, or may not be installed, as long as the transportability of the reader 25 is not hindered.

A guide 92 for introducing the reader 25 into the passage 75 is provided above the passage 75, and a guide 93 for sending the reader 25 passing through the passage 76 to the outside of the processing tank 2 is provided above the passage 76. ing. Curved surfaces 94 and 95 are formed on these guides 92 and 93 so that crossover between the processing tank 2 and an adjacent processing tank or the like can be performed smoothly.

The guides 9, 92 and 93, the sprocket 8 and its driving system, and the rollers 85 and 10 constitute a transport means for the film F.

The reader 25 is, for example, polyethylene, polypropylene,
It is a plate-shaped member made of polyester, polyvinyl chloride, polyacetal, or the like. This reader 25 is a processing tank 2
Since it is conveyed along the curved portions (curved surfaces 94, 44, 95) in the inside, those having a certain degree of flexibility are preferable.

As shown in FIG. 4, near the center of the leader 25 in the width direction, rectangular locking holes 26 are formed at equal intervals along the longitudinal direction of the leader 25. The locking holes 26 are for inserting the teeth of the sprocket 8.

At the rear end of the reader 25, two films F are connected in parallel. The connection of the rear end of the reader 25 to the film F
For example, it is performed by sticking them with an adhesive tape (splice tape) 27. In this case, it is preferable that the adhesive tape 27 be adhered to both sides of the film F in order to prevent the film F from falling off.

In addition, an inclined cutout portion 28 is formed at both ends of the distal end portion of the reader 25 to facilitate the passage of the reader 25.

The number of the films F connected to the rear end of the reader 25 is not particularly limited, and one film F may be connected and transported.

Such a leader 25 needs to have its locking hole 26 locked with any of the sprockets 8 while passing through the processing tank 2. Therefore, the total length of the leader 25 is set to be longer than the maximum value of the installation interval of the adjacent sprockets 8 along the transport path.

As described above, in the photosensitive material processing apparatus 1B, the film F is not directly conveyed, but the leader 25 is advanced, and the film F is pulled and conveyed by the leader 25. In addition, the occurrence of sensory defects such as scratches on the film emulsion surface, transfer marks, and stains due to contact with the roller is prevented.

In such a photosensitive material processing apparatus 1B, a processing liquid supply unit as described below is provided.

The processing liquid supply means supplies two or more types of processing liquids having different functions to different processing chambers for processing.

The block body 4a above the processing chamber 6A is formed with a liquid supply passage 12 having one end communicating with the passage 75.

Also, one end of the block 4b above the processing chamber 6E is 76
A liquid supply passage 13 communicating with the liquid supply passage 13 is formed.

These liquid supply paths 12 and 13 are connected to two liquid supply pipes (not shown) penetrating the side wall 21 of the processing tank 2 in a state where the rack 3 is loaded in the processing tank 2. ing.

Processing chambers other than the processing chamber 6A through which the film F first passes and the processing chamber 6E through which the film F passes last, ie, the processing chamber 6C
One end of a drain pipe 14 penetrating through the side wall 21 of the processing tank 2 is provided.

The other end of the drain pipe 14 is installed at a height position for setting a liquid level in the processing tank 2.

A bleaching solution (replenishing solution) R ₁ is supplied from the liquid supply channel 12, and a fixing solution (replenishing solution) R ₂ is supplied from the liquid supply channel 13.

Bleach R ₁ supplied from the supply fluid channel 12, during the processing, the processing chamber 6A, passage 71, the processing chamber 6B, sequentially passes through the processing chamber a passage 72
Flow into 6C. On the other hand, the fixing liquid R ₂ supplied from the liquid supply path 13
During the processing, flows into the processing chamber 6C through the processing chamber 6E, the passage 74, the processing chamber 6D, and the passage 73 sequentially.

Bleach R ₁ and fixer R ₂ has flowed this way the processing chamber 6C, the process chamber mixed in 6C, the bleach-fixing solution R ₃ are stirred
Next, fatigue bleach-fixing solution R ₃ is discharged to the outside by the overflow from the drain pipe 14.

In this case, during processing, the bleaching solution R ₁ flows in the same direction (parallel flow) as the transport direction of the film F, and the fixing solution R ₂
Is the direction opposite to the transport direction of the film F (counter flow)
It becomes the flow of.

In the photosensitive material processing apparatus 1B, a processing liquid circulating means 5 described below is provided.

As shown in FIG. 7, each of the processing chambers 6A to 6E has pipes 5A to 5E whose both ends pass through the side wall 21 of the processing tank 2 and communicate with the processing chamber.
Is connected.

In the middle of the pipes 5A to 5E, pumps 51A to 51E for feeding liquid and heaters 52A to 52E for heating the processing liquid are provided, respectively.

As shown in FIG. 2 and FIG. 3, a suction pipe 53 is connected to one end of each of the conduits 5A to 5E, and a nozzle 54 is connected to the other end.

For example, in the processing chamber 6A, the suction pipe 53 is fixed to the rack 3 so as to penetrate the side plate 31 and protrude into the processing chamber 6A. Then, it is connected to one end of the conduit 5A.

On the other hand, the nozzle 54 is fixed to the rack 3 so as to penetrate the side plate 31 and protrude into the processing chamber 6A. The tip end 55 is extended to the vicinity of the other side plate 32.
Is connected to the other end of the pipe 5A when the processing tank 2 is loaded. At the position of the nozzle 54 facing the transport path of the film F, an ejection port 57 for ejecting the processing liquid is provided.
Are formed.

Note that such a configuration is the same for the processing chambers 6B, 6D, and 6E, and is the same for the processing chamber 6C except that the nozzle 54 is embedded in the block 4o.

Such pipes 5A to 5E, corresponding pumps 51A to 5E
1E, the suction pipe 53 and the nozzle 54 installed in the processing tank 2 constitute a processing liquid circulating means (circulation system) 5 for circulating the processing liquid for each of the processing chambers 6A to 6E.

Note that various connectors, valves, and the like (not shown) may be provided in the middle of the pipes 5A to 5E.

In this processing liquid circulating means 5, when the pumps 51A to 51E and the heaters 52A to 52E are operated, the processing liquid sucked from the suction pipes 51A to 51E passes through the pipes 5A to 5E through one end of the pipes 5A to 5E. As shown, the heaters 52A to 52E heat the mixture to the temperature shown in Table 1 below, reach the other ends of the pipes 5A to 5E, and
Flows from the base end 56 into the nozzle 54 and is ejected from the ejection port 57 into each of the processing chambers 6A to 6E. When the film F passes, the processing liquid jet from the jet port 57 is jetted toward the emulsion surface of the film F.

By providing such a processing liquid circulating means 5, the processing liquid in each of the processing chambers 6A to 6E is circulated and agitated, and the composition and temperature of the processing liquid are made uniform, so that good processing without processing unevenness is achieved. Becomes possible. In particular, since the processing liquid is jetted toward the emulsion surface of the film F, the stirring efficiency is improved and the photographic properties can be improved.

The circulation amount of the processing liquid (the flow rate in the pipeline) is not particularly limited, but is about 0.1 to 5 / min, particularly 0.5 to 5 per processing chamber.
It is preferably set to about 2 / min. In this case, each processing chamber
The circulation amount in 6A to 6E may be the same or different.

The processing liquid circulating means 5 may be provided only in some of the processing chambers 6A to 6E, or the processing liquid circulating means may not be provided at all.

The temperature of the processing solution in each of the processing chambers 6A to 6E is preferably about 30 to 45 ° C.

As means for keeping the liquid temperature in each of the processing chambers 6A to 6E constant,
For example, as shown in FIG. 2, a temperature sensor 16 for detecting the temperature of the processing liquid is typically installed in the processing chamber 6C, and the temperature of the processing liquid is detected by the temperature sensor 16 as needed or timely. Based on the detected value, the control means (not shown) such as a microcomputer turns on the heaters 52A to 52E,
OFF or calorific value can be controlled.

The rack 3 has a plate-like partition member orthogonal to the side plates 31 and 32.
17 are installed. As shown in FIG. 6, the partition member 17 partitions a first area 18 shown by oblique lines on the left side of the figure and a second area 19 shown by oblique crosses on the left side of the figure, and distributes the processing liquid in both areas. It is for shutting off.

The first area 18 is a processing chamber 6A through which the film F first passes.
Is a region including
Also contains 6B.

The second area 19 is a processing chamber 6E through which the film F finally passes.
, And in the example shown in the figure, also includes the processing 6D that passes through the penultimate end.

Both ends 171 and 172 of the partition member 17 are tapered (the width gradually decreases downward in FIG. 2), and the corresponding side walls 21 and 22 of the processing tank 2 also have the same angle. It is preferably tapered. Thereby, when the rack 3 is inserted into the processing tank 2, the ends 171 and 172 of the partition member 17 engage with the inner surfaces of the side walls 21 and 22 of the processing tank 2, respectively, and the first area 18 and the second area 19 And partition. At this time, the engaging portion comes into close contact with the rack 3 due to its own weight, and substantially prevents the flow of the processing liquid.

It is preferable to provide a seal member (not shown) similar to the seal member 11 at the engagement portion, for example, at the ends 171 and 172, because the treatment liquid blocking property is further improved.

As for the sealing member, the partition member 17 is also provided as described above.
And the seal member can be integrally formed by two-color molding or insert molding.

End portions 171 and 172 of the partition member 17 and side walls 21 of the processing tank 2;
The taper angle of 22 is not particularly limited, but is preferably about 1 to 10 ° with respect to the vertical direction.

In addition, the constituent material of the partition member 17 is also the same as the block bodies 4a to 4a.
The same thing as 4o can be used, and the partition member 17 and each of the block bodies 4a to 4o and the side plates 31, 32, etc. are also integrally formed even if they are joined together. Is also good.

At a predetermined position in the height direction of the rack 3 outside the side plates 31 and 32, a flat plate 20 orthogonal to the side plates 31, 32 and the partition member 17 is installed. The main shaft 82
Penetrates the flat plate 20 and is supported.

The flat plate 20 is preferably installed at a certain height of the passages 71 to 74 or in the vicinity thereof.

The flat plate 20 prevents the flow of the processing liquid in the vertical direction between the side plate 31 and the side wall 21 and between the side plate 32 and the side wall 22. Accordingly, it is possible to prevent the processing liquid in each of the processing chambers 6A to 6E from being mixed through the outside of the side plates 31 and 32.

Next, the usage and operation of the photosensitive material processing apparatus 1B will be described.

In starting the process of the film F, the bleaching solution R ₁ and fixer R ₂ respectively supplied from the supply fluid channel 12 and 13,
Each of the processing chambers 6A to 6E and each of the passages 71 to 74 are filled with a processing liquid having a predetermined composition.

At this time, as described above, when the leader 25 and the film F do not pass, the blade 15 is configured to block the flow of the processing liquid. It is preferable that the supply is performed smoothly by transporting the reader 25. In addition, each processing room 6A
6E may be provided with liquid supply ports (not shown) to fill the processing liquid.

Next, the pumps 51A to 51E and heaters 52A to 52E of each processing liquid circulating means 5 are operated to control, circulate, and agitate the processing liquid in each of the processing chambers 6A to 6E. That is, pumps 51A-5
When 1E and heaters 52A-52E are activated, suction pipes 51A-51E
The processing liquid inhaled from the pipes passes through one end of the pipes 5A to 5E.
After passing through the inside of 5A to 5E, it is heated to a predetermined temperature by the heaters 52A to 52E, further reaches the other ends of the pipes 5A to 5E, flows into the nozzle 54 from the base end 56 of the nozzle 54, and from the ejection port 57. It is ejected into each of the processing chambers 6A to 6E.

Note that it is preferable that such circulation and temperature control of the processing liquid be continued at least during the processing of the film F and be performed continuously even when the film F is not processed.

In this state, when the reader 25 connected to the film F approaches the processing tank 2, replenishment of the processing liquid from the liquid supply paths 12 and 13 is started.

The replenishment of the processing liquid is started almost simultaneously with the start of the processing of the film F as described above, because the blade 15 has a large effect of blocking the processing liquid. This is because the liquid substantially flows.

This replenishment is continued during the processing period, and the drainage pipe 14
, A processing solution (bleach-fixing solution R ₃ ) having substantially the same amount as the total replenishing amount is discharged.

On the other hand, when the leader is carried into the passage 75 along the curved surface 94 of the guide 92 while the conveying means is operated and each sprocket 8 is rotated, the teeth of the sprocket 8 are inserted into the locking holes 26 of the leader 25. Engages and sends the reader 25 into the processing chamber 6A. Thereafter, as shown by the arrow in FIG. 2, the processing chamber 6A, the passage 71, the processing chamber 6B, the passage 72, the processing chamber 6C, the passage 73, the processing chamber 6
D, the passage 74 and the processing chamber 6E are transported in this order, and after passing through the passage 76, are carried out of the processing tank 2 along the curved surface 95 of the guide 93.

Then, the film F is pulled by the reader 25 and transported along the same route.

As described above, while the film F is conveyed in each of the processing chambers 6A to 6E, the film F comes into contact with the processing liquid and is subjected to desilvering processing. In this case, when the film F passes through the nozzle 54, the processing liquid jet jetted from the jet port 57 collides with the emulsion surface of the film F, so that the processing is accelerated.

In the processing chamber 6C, the reader 25 is a block body.
Although the film F is conveyed along the curved surface 44 of 4o (see the dashed line in FIG. 2), the film F following it is pressed by the tension of the film F itself and the processing liquid jet from the nozzle 54. Then, the edge portion of the film F passes while contacting the roller 85 (see a two-dot chain line in FIG. 2).

When the processing is completed and the rear end of the film F is carried out of the processing tank 2, the replenishment of the processing liquid is similarly stopped.

In such processing, the liquid composition gradient in each of the processing chambers 6A to 6E is favorably maintained due to the shielding effect of the blade 15,
Moreover, the squeezing effect of the blade 15 significantly reduces the amount of carry-in from the preceding processing chamber to the subsequent processing chamber, so that the processing efficiency is significantly improved, and the bleaching solution R ₁ and the fixing solution
The replenishment amount of R ₂ can be greatly reduced.

The amount of this replenishment is determined by
The flow rate may be about the flow rate determined by the gap formed when passing through 15.

Such a replenishment amount mainly depends on the width, thickness, transport speed, and the like of the film F. For 135 color negative film, the replenishment rate of the bleaching solution R ₁ and fixer R ₂ are each, it is about about 3~7ml per film 1m and 15-20 ml.

Such a replenishment amount is about 50 to 80% of the replenishment amount as compared with the related art, and even with such a small replenishment amount, there is no occurrence of poor desilvering or the like.

In this way, since the replenishment amount is reduced, each processing chamber
The circulation amount of the processing liquid in the processing chambers 6A to 6E can be reduced, and the uniformity of the liquid composition and the temperature in the processing chambers 6A to 6E is sufficiently maintained without performing complicated and strict temperature control. And good processing can be performed.

In addition, as a result of improving the processing efficiency, the volume and the like of each of the processing chambers 6A to 6E can be reduced, and the pump 51
A to 51E and heaters 52A to 52E can be reduced in power and reduced in size, thereby contributing to downsizing of the photosensitive material processing apparatus.

Further, when the reader 25 and the film F do not pass (non-processing), the blade 15 blocks the flow of the processing liquid between the adjacent processing chambers, so that the processing liquid hardly mixes. As a result, even in the case where the processing is paused for a long time and then restarted, efficient processing can be immediately performed.

The control of the replenishment timing and the replenishment amount, the adjustment of the circulation amount, the temperature control of the processing solution, and the like in the above may be performed using a known control method and means.

In the above description, the processing liquid is replenished simultaneously with the processing of the film F. However, the processing liquid may be replenished during non-processing.

In such a case, a bypass may be provided to connect adjacent processing chambers so that a liquid amount corresponding to the replenishment amount of the preceding processing chamber flows into the subsequent processing chamber.

In addition, in the photosensitive material processing apparatus 1B, in addition to the above, development processing, bleaching, fixing, bleach-fixing alone processing, washing, stabilization, adjustment, reversal, etc., can be applied to various processing, The flow of the processing liquid can be changed and used by appropriately selecting the supply / drainage pipe or the like.

Generally, in a processing solution containing a compound that reacts with silver halide or the like in the film F such as a developing solution, a bleaching solution, a bleach-fixing solution, and a fixing solution, unlike the washing water, the flow of the processing solution is as follows.
It is preferable for the processing efficiency to be the same as the transport direction of the film F (parallel flow). In addition, as for the processing liquid having a fixing function, similarly to the water washing,
Since there is also an effect of washing out unnecessary substances in the emulsion layer of the film F, a counter flow may be used.

Specific examples of the treatment liquid used in the present invention include:
Examples include the following:

The color developer is generally composed of an alkaline aqueous solution containing a color developing agent.

Color developing agents are primary aromatic amine developers such as phenylenediamines (for example, 4-amino-N, N-diethylaniline, 3-methyl-4-amino-N, N-diethylaniline, 4-amino-N-ethyl) -N-β-hydroxyethylaniline, 3-methyl-4-amino-N-ethyl-N-β-hydroxyethylaniline, 3-methyl-4
-Amino-N-β-ethyl-N-methanesulfonamidoethylaniline, 4-amino-3-methyl-N-ethyl-N-β-methoxyethylaniline, etc.) can be used.

The color developing solution may further contain a pH buffer, a development inhibitor or an antifoggant.

Also, if necessary, water softener, preservative, organic solvent,
Development accelerators, dye-forming couplers, competitive couplers, fogging agents, auxiliary developing agents, viscosity-imparting agents, polycarboxylic acid-based chelating agents, antioxidants, alkali agents, dissolution aids, surfactants, defoamers, etc. May be included.

Examples of black-and-white developers include dihydroxybenzenes (eg, hydroquinone) and 3-pyrazolidones (eg, 1-
Developing agents such as phenyl-3-pyrazolidone) and aminophenols (eg, N-methyl-p-aminophenol) can be used alone or in combination.

Examples of the fixing solution include compounds containing ammonium thiosulfate, sodium thiosulfate (hypo), ammonium halide, thiourea, thioether and the like as compounds having a fixing action on silver halide (fixing agent).

Examples of the bleaching solution include bleaching agents containing iron salts of polycarboxylic acids, red blood salts, bromate compounds, cobalt hexamine, and the like. Of these, potassium ferricyanide, sodium iron (III) ethylenediaminetetraacetate, and ammonium iron (III) ethylenediaminetetraacetate are particularly useful.

In addition, a bleaching / fixing solution containing both the above-mentioned bleaching agent and fixing agent can be used.

Fixing solution (bleaching / fixing solution) usually contains, in addition to the fixing agent,
Preservatives such as sodium sulfite, fixing agents such as acid agents, buffers, and hardeners can be contained.

The bleaching solution (bleaching / fixing solution) includes US Pat.
No. 2,520, No. 3,241,966, Japanese Patent Publication No. 45-8506, Japanese Patent Publication No.
Bleaching accelerators described in JP-A-45-8636, JP-A-53-65732.
In addition to the thiol compounds described in (1), various additives can also be added.

As the washing water, water (distilled water, ion-exchanged water, etc.) or an additive can be added to this water as needed.

This additive includes, for example, chelating agents such as inorganic phosphoric acid, aminopolycarboxylic acid, and organic phosphoric acid; bactericides that prevent the growth of various bacteria and algae; antifungal agents; hardening agents such as magnesium salts and aluminum salts. , A drying load, and a surfactant for preventing unevenness. Or LEWe
st, “Water Quality Criteria” Phot.Sci.and Eng., vo
Compounds described in l.9 No. 6 P344 to 359 (1965) and the like can also be used.

As the stabilizing solution, a processing solution for stabilizing a dye image is used. For example, a liquid having a buffer capacity of pH 3 to 6, a liquid containing an aldehyde (for example, formalin), or the like can be used. The stabilizer contains a fluorescent whitening agent, if necessary.
Chelating agents, bactericides, sunscreens, hardeners, surfactants and the like can be used.

For details of these processing solutions, reference can be made to the description of “Chapter 4 Development Processing”, p.299, “Basics of Photographic Engineering”, edited by The Photographic Society of Japan, published by Corona (1979).

The photosensitive material processing apparatuses 1A and 1B described above include various types of photosensitive materials such as a large automatic developing machine, a small automatic developing machine (minilab), a coin machine for making photo prints, a portable color negative developing machine, and a color negative / color paper integrated developing machine. It can be applied to a material processing device.

The film F, which is the object of the present invention, is preferably a strip-shaped long object. This film F has perforations (holes) formed on one or both side edges thereof, and the density of the perforations is within 2 per screen, more preferably 1 or 0.5 per screen. .

Hereinafter, a configuration example of the film F will be described with reference to FIGS. 9 to 14.

As shown in FIGS. 9 to 14, the film F is composed of a screen (image portion) F1 formed by photographing (exposure) and a frame portion F2 formed around the screen F1. In each figure, the screen F1 is hatched.

Here, the frame portion F2 is preferably unexposed. The reason is that if the frame portion F2 is exposed in advance, for example, as in the case of a 110 film or an instamatic, the area to be developed becomes large, causing an increase in the replenishment amount of the processing solution, and the narrow processing path described above. This is because it is contrary to the purpose of processing in the processing tank.

In addition, a perforation F3 for feeding the film F in the camera and aligning the film F in the exposure section is formed in the frame portions F2 at both end portions of the film F.

This perforation F3 is preferably constituted by a rectangular through hole.

Hereinafter, an example of the formation pattern of this pool F3 will be described.

In the example shown in FIG. 9, the screen F1 is a full-size screen, and one perforation F3 is formed on one side end of the film F at a rate of one per screen F1.

The perforation F3 is used to perform alignment at the exposure section in the camera using this perforation F3.
Are preferably formed at equal intervals.

Further, as shown, the perforations F3 are formed at positions between adjacent screens F1. Thus, there is an advantage that even if the processing liquid flows in the perforation F3 during the processing and a so-called tailing phenomenon occurs in the width direction of the film F, the screen F1 is not affected.

In the example shown in FIG. 10, one side edge of the film F is
Perforations F3 are formed at a rate of two per screen.

In the example shown in FIG.
Perforations F3 are formed at a rate of two per screen.

In this case, each perforation F3 is formed at a position between adjacent screens F1 as described above, and is a target at both side ends of the film F.

In the example shown in FIG.
Perforations F3 are formed at a rate of two per screen.

In this case, the perforation F3 is formed at a position between the adjacent screens F1 at one side end, and is formed near the center in the film longitudinal direction of the screen F1 at the other side end.

FIG. 13 and FIG. 14 show examples when the screen F1 is half size.

In the example shown in FIG.
Perforations F3 are formed at a rate of two per screen (half size).

The perforation F3 of the same pattern as shown in FIG.
When a full-size image is shot with the film F having the following, the image has four perforations per screen (full size).

In the example shown in FIG. 14, perforations F3 are formed at one end of the film F at a rate of 0.5 per screen (half size).

When a half-size photograph is taken with a film F having a perforation F3 having the same pattern as that shown in FIG. 9, the configuration shown in FIG. 14 is obtained.

The formation pattern of the perforation F3 is ninth.
The invention is not limited to those shown in FIGS. To 14, but may be any combination of those shown in the figures or other patterns.

As described above, by setting the formation density of perforations to two or less per screen, the following various effects can be obtained.

In processing the film F, the narrow processing path described above is used.
When the film F passes through 60A or the passages 71 to 76, the processing liquid flows and flows through the perforations.

At this time, the flow of the processing liquid becomes irregular, and processing unevenness may occur in an image near the side of the perforation. However, since the number of perforations is small, such processing unevenness is prevented.

Since the number of perforations is small, the possibility of occurrence of tearing, that is, a phenomenon in which the film F is cut at the perforation portion when tension is applied to the film F, is reduced. Further, the elongation of the film F is reduced.

 For this reason, the durability of the film F is improved.

When the film F moves between adjacent processing tanks, for example, when moving from the developing tank to the bleaching tank, the developer attached to the film F is brought into the bleaching tank.

In this case, in addition to the developer adhering to the surface of the film F, the developer is present in a state in which a film is formed in the perforation, and this is carried into the bleaching tank. , The stable and favorable processing is continued, and the replenishment amount of the replenisher is also reduced.

Since the film transport mechanism is simplified, the film F
Is unnecessary or the area of the tongue portion can be made smaller than before. As a result, the consumption of the developer decreases, and the replenishment amount of the replenisher decreases.

On the film F, especially in the frame portion F2, for example, shooting information (presence / absence of strobe, color temperature, LV value, shooting distance, lens focal length, subject contrast, shooting date and time, shooting location, etc.), film information An information recording unit for recording information such as (film type, film manufacturing date, printing conditions, etc.) and lab information (lab name, development date, printing conditions for simultaneous printing, etc.) may be provided.

In this case, if the number of perforations is small, the range of selection of the installation position and the installation pattern of the information recording unit is widened, and the area of the information recording unit can be large.

Here, the information recording section may be of any type such as optical recording and magnetic recording, and includes, for example, a magnetic track, a bar code, and an exposing section utilizing the photosensitivity of the film itself.

Further, in the case of a color film, information can be recorded in three different color sensitivities.

For such information recording, a system in which an IC memory (ROM, RAM) is provided in the cartridge storing the film F and the information is stored in the IC memory may be used alone or in combination with the above.

When the film is transported in the processing tank, particularly when the blade 15 is provided in the processing path 60A or the paths 71 to 74 as described above, the film F has a sliding resistance. Transport resistance increases.

Since the sliding resistance between the film F and the blade 15 is generated particularly at the perforation portion, if the number of perforations is small, the sliding resistance is reduced, and the transportability of the film F is improved. Further, as described above, the film F is conveyed while being pulled by the reader 25 or the like. However, if the conveyance resistance increases, the tension applied to the film F increases, and the film F is likely to tear. In addition, due to the increase in the tension, the edge portion of the perforation is curved and deformed, and the sliding resistance with the blade is further increased. In the present invention, the occurrence of such a phenomenon can be suppressed, and the transportability of the film F can be improved.

As described above, when the number of perforations is small, the transport resistance of the film F is reduced, and the number of times of contact between the perforations and the blade 15 is reduced.
The life of the blade 15 is extended.

Depending on the installation position and the installation interval of the perforations, it is possible to easily and accurately transfer and position the film in the camera or in the film carrier.

In the present invention, the type of film to be processed is not particularly limited, and may be either color or black and white. For example, a color negative film, a color reversal film, a color positive film, a black-and-white negative film, a microfilm, a movie film and the like can be mentioned.

Further, the size of the film F is not particularly limited,
Usually, a size of 135 is preferable.

As described above, the configuration examples of the present invention have been described, but it is needless to say that the present invention is not limited thereto.

<Examples> Specific examples of the present invention will be described below.

Processing Conditions [Photosensitive Material Processing Apparatus] As a comparison apparatus, an automatic developing machine of FNCP-40B type manufactured by Fuji Photo Film Co., Ltd. having no ordinary box-shaped processing tank (no blade was installed) was used.

An automatic developing machine having a processing tank having a configuration shown in FIGS. 2 to 7 in which a plurality of processing chambers were connected by a passage having a narrow width (slit width W = 2.0 mm) was used. The total length of the passage relative to the entire length of the passage in the processing tank was a value shown in Table 1.

In each of the passages 71 to 74, a pair of silicone rubber blades having the structure shown in FIG. 8a was installed.

The procedure was the same as above, except that the total length of the passages with respect to the entire length of the passage in the treatment tank was changed.

An automatic developing machine for comparison having a processing tank having a configuration shown in FIG. 1 in which a processing space is formed by a processing path having a narrow width (slit width W = 2.0 mm) was used.

The processing path was provided with eight polypropylene blades having the configuration shown in FIG. 8b along the longitudinal direction of the processing path.

[Treatment liquid] The treatment liquids of the following I to IV were put into the treatment tanks of the above-mentioned devices to carry out the treatment.

I ... Developer solution formula / Color negative processing agent CN-, manufactured by Fuji Photo Film Co., Ltd.
16N ₁ II ... bleach and (if the device, the bleach-fixing solution) fixer bleaching solution formulation / Fuji Photo Film Co., Ltd. color negative processing agent CN-16N ₂ fixer formulation / Fuji Photo Film Co., Ltd. color negative processing agent CN-16N ₃ III: Rinse water and stabilizing solution Rinse water formulation / tap water stabilizing solution formulation / Fuji Photo Film Co., Ltd. color negative treating agent CN-16N ₄ [Film] Fuji Color Super HG manufactured by Fuji Photo Film Co., Ltd. And the perforation formation pattern was as follows.

A: Conventional product 16 perforations per screen B: Pattern shown in Fig. 9 Perforations per screen 1 C: Pattern shown in Fig. 11 Perforations per screen 2 D: JISB7176 Fig. 3 Pattern Number of perforations per screen 2.5 Full size for these films A, B, C and D
Twenty-four sheets were photographed, and these films were continuously processed using combinations of automatic developing machines and processing solutions shown in Table 1 below, and the occurrence of processing unevenness was examined.

 The results are shown in Table 1 below.

 The method for evaluating processing unevenness is as follows.

(I) Developing process: process unevenness The tailing and unevenness at the position corresponding to the perforation are visually determined.

(II) Bleaching / fixing treatment: Desilvering unevenness The amount of residual silver was analyzed by fluorescent X-ray analysis, and the degree of variation was evaluated. The larger the variation, the more desilvering unevenness occurs.

(III) Rinse (stable) treatment: residual color unevenness (residual active agent unevenness) Visually determine the occurrence of unevenness after storing the treated film in an environment of 60 ° C. and 70% RH. Are displayed in the following four stages.

◎: No unevenness was generated at all. ○: Almost no unevenness was generated.…: Unevenness was generated. As shown in Table 1 above,
In the example of the present invention in which the film B or C is combined, the occurrence of processing unevenness is prevented for any of the processing liquids.

Next, the transportability of each of the films A, B and C in the processing tank and the durability (life) of the blade were examined.

 The results are shown in Table 2 below.

In addition, the evaluation method of a film conveyance property and blade durability is as follows.

[Film Conveying Property] Each film was passed through the treatment tank for a length of 4000 m, and the tension applied to the film during that time was continuously measured, and the maximum value was evaluated.

 The symbols in Table 2 are as follows.

◎… Maximum tension less than 0.7kgf ○… Maximum tension 0.7kgf or more and less than 1.5kgf △… Maximum tension 1.5kgf or more and less than 2.2kgf ×… Maximum tension 2.2kgf or more ［Blade durability］ Evaluation was made on the shielding ability (sealability) of the blade after passing. The shielding ability of the blade was evaluated by the amount of liquid leakage per unit length of the blade under the pressure of the processing liquid.

 The symbols in Table 2 are as follows.

◎… Leakage less than 2ml ○… Leakage 2ml to less than 4ml △… Liquid leakage 4ml to less than 8ml ×… Liquid leakage 8ml or more As shown in Table 2, in the present invention example in which the processing apparatus or the film B or C is combined, both the film transportability and the blade durability are excellent.

<Effects of the Invention> As described above, according to the method for processing a photosensitive material for photography of the present invention, it is possible to prevent the occurrence of processing unevenness in the photosensitive material for photography.

In addition, especially when a blade is provided in the processing path, the transportability of the photosensitive material for photography, particularly a long photosensitive material for photography is improved, and the elongation of the photosensitive material for photography and jamming accidents are prevented, and the blade is removed. The durability is also improved.

[Brief description of the drawings]

FIG. 1 is a sectional side view showing a configuration example of a photosensitive material processing apparatus used in the present invention. FIG. 2 is a sectional side view showing another example of the configuration of the photosensitive material processing apparatus used in the present invention. FIG. 3 is a sectional view taken along the line III-III in FIG. FIG. 4 is a partially cutaway perspective view showing a configuration near a passage in FIG. FIG. 5 is a sectional front view showing the structure of the lower end portion of the photosensitive material processing apparatus shown in FIG. FIG. 6 is a sectional view of the photosensitive material processing apparatus shown in FIG.
It is a schematic diagram which shows an area | region and a 2nd area | region. FIG. 7 is a circuit diagram schematically showing a configuration example of a processing liquid circulating means in the photosensitive material processing apparatus shown in FIG. 8a, 8b, 8c, and 8d are cross-sectional side views each showing an enlarged configuration example of the blade. FIGS. 9, 10, 11, 12, 13, and 14 are plan views each showing the shape of a film applied to the present invention. Explanation of reference numerals 1A, 1B: photosensitive material processing apparatus 2, 2A: processing layer 3A: housing 30A: hot water 31A: water supply port 32A: drain port 40A: outer tank wall material 50A: inner tank wall Material 55A… Groove 57A… Handle 60A… Processing path 61A-69A… Small space 7A… Liquid supply port 8A… Drainage port 9A… Feed rollers 10A, 11A… Crossover rollers 21, 22… ... Side wall 3 ... Racks 31, 32 ... Side plates 4a-4o ... Block body 42 ... Depression 43 ... Notch groove 44 ... Curved surface 45 ... Protrusion 5 ... Processing liquid circulation means 5A-5E ... Pipes 51A to 51E Pump 52A to 52E Heater 53 Suction pipe 54 Nozzle 55 Tip 56 Bottom 57 Spout 6A to 6E Processing chamber 71 to 76 Passage 8 Sprocket 81 Rotating shaft 82 Main shaft 83, 84 Bevel gear 85 Roller 9 Guide 91 Opening 92, 93 Guide 94, 95 Curved surface 10 Roller 11 … Seal member 12 13 Liquid supply passage 14 Drain pipe 15 Blade 16 Temperature sensor 17 Partition members 171, 172 End 18 First region 19 Second region 20 Flat plate 25 … Leader 26… Lock hole 27… Adhesive tape 28… Notch F… Film F1… Screen F2… Frame F3… Perforation Q… Treatment liquid R ₁ … Bleaching liquid R ₂ … … Fixing solution R ₃ …… Bleaching fixer

Claims (1)

(57) [Claims] 1. A processing tank having a narrow processing path in a processing tank, a plurality of processing chambers connected by the narrow processing path, and a total of narrow paths with respect to a front path length in the processing tank. Length is 20%
When processing a photographic photosensitive material using a processing tank in which a blade capable of shielding the processing path is installed in the narrow processing path, the photographic photosensitive material is one of the following. Alternatively, a perforation is formed at both side edges, and the formation density of the perforations is within two per screen.