JPH04123053A - Processing method for photosensitive material for photographing - Google Patents

Abstract

PURPOSE:To prevent the generation of unequal processing and tailing of a photosensitive material by confining the forming density of perforations to within 4 pieces per image plane and injecting a processing liquid. CONSTITUTION:This photosensitive material F for photographing is formed with the perforations at the forming density within 4 pieces per image plane at one or both ends. Then, the forming density of the perforations is smaller and the flow of the processing liquid in the perforations decreases at the time of the passage in a narrow-path processing path 60A. The stirring effect by the injection of the processing liquid from injection nozzles 18 is consequently improved. The generation of the unequal processing is decreased in this way and the forming density of the perforations is small even when a blade 15 capable of shielding this processing path is installed and, therefore, the increase in the resistance for transporting the photosensitive material for photographing is prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a method for processing photographic light-sensitive materials such as negative films.

<Prior art> Photographic materials that have already been photographed are subjected to processing such as development, bleaching, bleach-fixing, fixing, washing, and stabilization.
A technology for processing using a processing tank having a narrow processing path has been disclosed for the purpose of reducing the amount of processing liquid replenishment and waste liquid, improving processing efficiency, and downsizing the processing equipment (Japanese Patent Application Laid-Open No. 1983-1993). -89052, No. 63-131138, No. 63-216050, No. 64-26855, Japanese Patent Application Laid-open No. 01-130548, etc.).

By the way, negative film, which is a typical example of photosensitive material for photography, has barforations along both sides of the film for transporting and positioning the film within the camera. When processing inside, the processing liquid flows through the perforations.

In this case, in a processing tank having a narrow processing path as described above, there is almost no flow of the processing liquid within the narrow processing path, but the processing liquid flows due to the passage of the negative film and flows through the perforations. do. The flow of the processing liquid through the perforations in this manner causes the flow of the processing liquid to become irregular, resulting in the disadvantage that processing unevenness and tailing occur in images near the sides of the perforations.

This processing unevenness is, for example, development unevenness when processing with a developer, desilvering unevenness when processing with a bleach, fixer, or bleach-fix solution, and residual color when processing with washing water or stabilizer. This is due to unevenness and unevenness due to residual active ingredient.

Such processing unevenness tends to occur more noticeably 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.

In addition, by installing a partitioning member such as a pair of blades that shields the narrow processing path in the processing tank,
A technique has been disclosed in which a liquid composition gradient (concentration gradient) of the processing liquid is formed over the entire length of the processing path to improve processing efficiency and photographic properties (Japanese Patent Application Laid-Open No. 02-130548, Japanese Patent Application No. 02-155667). issue).

In this case, the negative film passes between the pair of blades while being in contact with the blade surface, but as mentioned above, the negative film has perforations, which increases the sliding resistance with the blade and improves conveyance. It has the disadvantage that it decreases.

In particular, negative films are mainly made of plate-shaped leading members (leagues).
The negative film is transported by being towed by the blade, but the sliding resistance with the blade is large (as a result, the tension applied to the negative film increases,
The edge shape of the perforation is deformed in a curved manner, resulting in an increase in sliding resistance with the blade.

In particular, long negative films (e.g. 1 film size)
When processing existing products such as 35 size and 110 size, the amount of eluate that dissolves into the processing solution increases, which tends to cause uneven processing and tailing (also increases conveyance resistance and blade There is a significant decrease in durability.

<Problems to be Solved by the Invention> An object of the present invention is to provide a method for processing photographic materials that can prevent uneven processing and tailing of photographic materials and further improve transportability. It is about providing.

Means for Solving the Problems> Such objects are achieved by the present invention described in (1) and (2) below.

(1) A long photosensitive material for photographing can be produced using a processing tank which has a narrow processing path in the processing tank, the total length of which accounts for 20% or more of the total length of the processing path in the processing tank. When processing, the photosensitive material for photographing has perforations formed on one or both side edges thereof, and the formation density of these perforations is 4 or less per screen, and the perforations are formed within the narrow processing path. A method for processing a photosensitive material for photographing, comprising spraying a processing liquid onto the photosensitive material for photographing.

(2) The method for processing a photosensitive material for photographing according to (1) above, wherein a blade capable of shielding the narrow processing path is installed in the narrow processing path.

Effect> In the present invention, the photographic photosensitive material to be processed has perforations formed at one or both ends thereof at a density of no more than four perforation per screen. Therefore,
Compared to conventional 135 size negative film, etc., the density of perforations is smaller, so the flow of the processing liquid within the perforations is reduced when passing through the narrow processing path.As a result, the agitation efficiency by jetting the processing liquid is reduced. In other words, due to the synergistic effect of the reduction in the number of perforations and the improvement in stirring efficiency, the occurrence of processing unevenness is reduced.

Further, even when a blade capable of shielding the narrow processing path is installed, the formation density of perforations is small, so that an increase in the transport resistance of the photographic photosensitive material is prevented.

Particularly in the case of long photosensitive materials, the agitation effect produced by the spraying of the processing liquid is significant, and the occurrence of processing unevenness and tailing can be effectively suppressed.

<Structure of the Invention> Hereinafter, the method for processing a photosensitive material for photographing according to the present invention will be described in detail with reference to preferred embodiments shown in the accompanying drawings.

FIG. 1 is a sectional front view showing an example of the configuration of a photosensitive material processing apparatus for carrying out the present invention.

As shown in the figure, the photosensitive material processing apparatus IA includes a housing 3A, an outer tank wall material 40A installed inside the housing 3A, and an inner tank wall material 50A installed inside the housing 3A. It has a tank 2A.

The housing 3A has a box shape and serves as a constant temperature bath. That is, the housing 3A is filled with hot water 30A, and the processing liquid Q is heated to, for example, about 30 to 38° C. via the outer tank wall material 40A. The temperature of this hot water 30A is usually about 30 to 50°C, and is set to be equal to or slightly higher than the temperature of the intended treatment liquid.

Note that hot water is circulated in order to keep the temperature of the hot water 30A in the housing 3A constant.

That is, a water supply port 31A and a drain port 32A for hot water 30A are formed at the bottom of the housing 3A, and hot water heated by a heater (not shown) is connected from the water supply port 31A into the housing 3A, and the supply amount is Almost the same amount of hot water is discharged from the drain port 32A.

The housing 3A may be made of a material with heat insulation properties, such as hard vinyl chloride or polysulfonate, or
Alternatively, it is preferable to bond a heat insulating material such as asbestos, felt, aluminum foil, glass wool, etc. to the inner and/or outer walls of the housing 3A.

An outer tank wall material 40A is fixedly or removably attached to the upper part of the housing 3A.

This outer tank wall material 40A has a U-shape in which the bottom part is curved in an arc shape, and the lowermost end thereof is connected to the housing 3A.
It is spaced a considerable distance from the bottom of the This allows hot water to flow between the left and right sides of the outer tank wall material 40A in FIG.

It is also possible to provide a partition wall between the lowermost end of the outer tank wall material 40A and the bottom of the housing 3A to create a temperature difference between the hot water on the right side of the outer tank wall material 40A in FIG. For example, if the processing tank 2A is a developing tank, the left side (
The hot water for the first half of development) is lower than the hot water for the right side (the second half of development).
．． By setting the temperature to a high temperature of about 5 to 2°C, it is possible to improve the development characteristics, and in particular, to slightly improve the sensitivity.

The outer tank wall material 40A is preferably made of a material that has excellent thermal conductivity and has chemical resistance to the processing liquid Q, such as stainless steel, copper or copper alloy, Hastelloy, titanium, etc. The following metals can be mentioned.

In the inner center part of the outer tank wall material 40A, there is an inner tank wall material 50A.
is preferably removably inserted. As a result, a treatment path 60A having a slit-like cross section, that is, narrow and long, is formed between the inner surface of the outer tank wall material 40A and the outer surface of the inner tank wall material 50A.

The processing path 60A is divided into a plurality of small spaces 61A to 69A by a blade 15, which will be described later.

Small spaces 61A to 69A are provided on the outer surface of the outer tank wall material 40A.
A flow path 16 is provided at a position corresponding to the flow path 16, and a plurality of injection nozzles 18 are formed on the wall between the flow path 16 and the processing path 60A.

Furthermore, a treatment liquid inlet 19 is provided at the bottom of the small spaces 61A to 69A, and a treatment liquid supply port 17 is provided at the upper portion of the flow path 16.
is formed, and the suction port 19 and supply port 17 communicate with the outside of the processing tank 2. The supply port 17 and the suction port 19 communicate with each other through a circulation pump (not shown) for each of the small spaces 61A to 69A.
The structure is such that the processing liquid is circulated every time. During such circulation, the processing liquid is sprayed from the spray nozzle toward the photosensitive surface of the photographic photosensitive material.

Here, the volume of the small spaces 61A to 69A is 10 to 100 m.
m" (in some cases 100 to 600 cm3), the circulation rate of the treatment liquid may be about 0.03 to 11/min (in some cases 0.1 to 3 e/min), preferably 0.0
5 to 0.31/min (0.3 to 1.51/min depending on the case)
It is good if it is about a certain degree.

With such a circulation amount, the composition of the developer becomes uniform, the occurrence of tailing is suppressed, and photographic properties are improved, such as increased sensitivity and gradation.

The injection nozzle 18 may have a spot shape as shown in FIG. 2a, or a slit shape as shown in FIGS. 2b and 2c.

Furthermore, as shown in FIG. 2d, the area toward the center of the photosensitive material is small and the area toward the sides of the photosensitive material is large, so that uniform spraying can be achieved.

The hole size of the injection nozzle 18 is as shown in Fig. 2a, with a diameter of about 0.2 to 1.5 mm, and as shown in Figs. 2b and 2c, for example, 0.5 m + + +
1011I1m, as shown in Figure 2d, can be a combination of short diameter of about 0.2 to 0.6 mm, long diameter of about 1 to 4 mm, and the depth of the nozzle hole is 3 m.
It is preferable to set it to m or more.

By setting it to such a depth, stirring becomes good.

The injection pressure may be approximately O15 to 5 kg/c+n2.

Further, the linear velocity of the liquid is approximately 5 to 500 m/min.

At this time, in order to improve directivity, the injection nozzle 18
For example, it is preferable to have a large nozzle diameter on the inlet side of the injection port and a small nozzle diameter on the outlet side, or to provide a spiral groove in the nozzle diameter.

On the other hand, as shown in FIG. 3, the cross-sectional shape of the processing path 60 is such that the slit width W gradually decreases toward the end of the photosensitive material. By adopting such a shape, the amount of liquid flowing through the perforations is reduced, and the occurrence of uneven processing and tailing due to the perforations is reduced.

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 this processing path 60A can be defined in relation to the thickness of a photosensitive material for photographing (hereinafter referred to as film F), which will be described later, and is usually 2 times the thickness of film F.
It is preferable to set it to about 30 times.

For example, if the film F is a negative film with a width of 35 mm and a thickness of 0.2 mm, W is preferably about 0.5 to 5.0 mm. Although it is preferable to keep W constant over the entire area of the processing path 60A, W can also 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.

Further, in order to provide a driving portion, there may be a partially wide portion.

Incidentally, the lower end of the inner tank wall material 50A is formed with an arcuate groove 55A corresponding to the outer circumferential surface of a feed roller, which will be described later.

Further, on the upper part of the inner tank wall material 50A, the inner tank wall material 50A
A handle 57A used for attaching and detaching is attached. 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.

In addition, the inner tank wall material 50A may be made of a material having heat insulating properties such as vinyl chloride, polysilphone, polyethylene, foamed polyethylene, foamed polyurethane, or asbestos, considering the oil retention property of the processing liquid Q. It is preferable to bond a heat insulating material such as felt, glass wool, or aluminum foil.

Inside the bottom of the outer tank wall material 40A, a feed roller 9A for conveying the film F is installed so as to extend in the front-rear direction in the first section. The film F that has descended through the processing path 60A is wound around the outer peripheral surface of the feed roller 9A, reversed, and ascended. In addition, 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 arcuate wall surface of the bottom of the outer tank wall material 40A.

Further, crossover rollers 10A and IIA are installed on the film inlet side and the film outlet side above the processing tank 2A, respectively. The crossover roller IOA is for introducing the film F from the previous process into the processing path 60A, and the crossover roller 11A is for introducing the film F from the previous process into the processing path 60A.
This is for sending the film F that has come out from the stage to the next process.

Note that the feed roller 9A and the crossover roller 10A
and 11A may be either a freely rotating roller or a driven rotating roller.

To transport the film F in the photosensitive material processing apparatus IA, 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 and moves through the processing path 60A. It is preferable to configure it so that it can be transported. Alternatively, 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 the film F is processed, fresh processing liquid (hereinafter referred to as replenisher) is supplied. The replenisher is preferably supplied from the entrance side of the film F of the processing path 60A in the case of a developer, bleach, bleach/fixer, or fixer, although it depends on the type of processing solution. That is, a liquid supply lower A that discharges the replenisher is installed on the film F inlet side at the upper part of the processing path 60A, and a liquid drain port 8A that discharges the processing liquid Q by overflow is installed on the film F exit side of the processing path 60A.
The replenisher installed at the upper liquid level L position and supplied from the liquid supply lower A flows in the U-shaped processing path 60A in the same direction as the transport direction of the film F (parallel flow), and the replenishment amount and Almost the same amount of degraded processing liquid is discharged from the drain port 8A.

In this way, by making the processing liquid (particularly the developing liquid) flow in parallel, there is an advantage that the sensitivity of the film F is improved.

Note that the amount of replenisher supplied 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. It is preferable to set it to about 2 to 30 m5 per 1 m.

Now, in the photosensitive material processing apparatus IA, the U-shaped processing path 60A is shielded along the longitudinal direction of the processing path 60A,
A plurality of pairs of blades 15 are installed to divide into a plurality of sections.

Thereby, the processing path 60A has a plurality of small spaces 61A to 6
It is divided into 9A.

The pair of blades 15 are attached to the outer tank wall material 40A and the inner tank wall material 50A so that their tips are in close contact with each other when the film F is not passing through. and,
The structure is such that the leading end portion is pushed open by the entry of the film F (or the leader 25 when the film F is towed and conveyed by the leader 25).

FIG. 4a shows an enlarged view of the blade 15 in FIG.

As shown in FIG. 4a, the blade 15 is connected to the outer tank wall material 4.
0A and a base attached to the inner tank wall material 50A;
It consists of a tip part (thin part) whose thickness gradually decreases toward the tip, and is used in combination of two pieces. Further, the blade 15 may have substantially the same thickness from the base to the tip, as shown in FIG. 4b.

At this time, the average inclination angle of the blade 15 with respect to the surface of the film F is generally about 10 to 70 degrees.
In particular, it is preferably about 20 to 45 degrees.

Further, 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, but it is generally preferable to set it to 10 to 50 m111, which is 2 to 20 times this length. Particularly preferably 15 to 10 times
It is preferable to set it to 25 mm.

The length of the overlapping portion of the tips of the blades 15 when the film F does not pass between the pair of blades 15 set opposite to each other is approximately 1 to 10 mm, particularly 2 to 5 m.
It is best to set it to about m.

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, particularly 1-1.5 mm.

The contact surface pressure between the blades 15 is between 0.001 and 0.001. 1
kg7cm”, especially 0.005 to 0.02
It is preferable to set it to about kg/Cm2.

With the above conditions, it is possible to ensure close contact between the tips of the blades 15 when the film F does not pass through, and to effectively block the flow of the processing liquid Q.

Furthermore, the flow of the processing liquid Q when the film F passes through can be made very small.

The material of the blade 15 may be any material that does not adversely affect the processing liquid (e.g., natural rubber, chloroprene rubber, etc.).
Various rubbers such as nitrile rubber, butyl rubber, fluorine rubber, isoprene rubber, butadiene rubber, styrene butadiene rubber, ethylene propylene rubber, neorene rubber, neorene butadiene rubber, silicone rubber, soft polyvinyl chloride, polyethylene, polypropylene, ionomer resin, fluorine Examples include elastic materials such as resins, silicone resins, and soft resins such as polyamide, and elastomers such as Lavalon, Thermolan, Elastolan, Hytrel, and Sunprene can also be used.

Normally, the adhesion force between the blades 15 is given by the elastic force of the blades, but if a magnetic material is mixed into the tip of the blade 15 (for example, a rubber magnet), the tip can be bonded together by magnetic force. Provides adhesion through suction,
Or it is possible to increase it.

Furthermore, even if the film F slides on the blade 15, there will hardly be any adverse effects such as scratches on the emulsion surface, but if this cannot be ignored, or if the sliding resistance is to be reduced, This can be achieved by performing a surface treatment such as smoothing the side surface or coating the inner surface with a lubricant such as silicone or Teflon.

Further, the blades 15 are not limited to those forming a pair, and the blades 15 are not limited to those forming a pair.
As shown in the figure, the base of the - piece of the blade is attached to the tank wall material 40A.
Alternatively, it may be fixed to either one of the blades 50A, and the tip of the blade 15 may be in close contact with the other wall material.

Alternatively, as shown in FIG. 4d, the tank wall material on the side opposite to the side to which the blade is fixed may protrude into the processing path 60A, and the tip of the blade 15 may be in close contact with this protrusion 45. In this configuration, the sliding resistance of the film F is smaller than in the configuration shown in FIG. 4C.

In the configurations shown in FIGS. 4c and 4d, it is preferable to transport the film F so that the emulsion layer of the film F comes into contact with the blade 15.

By providing such a blade 15, the following actions and effects occur.

When processing the film F, as mentioned above (approximately the same amount of processing liquid Q as the supply amount of the replenishing liquid flows through the small space 61A in the processing Sho 60A).
The primary flow from the liver to 69A occurs, but the flow in the opposite direction is blocked.

Therefore, a liquid composition gradient is reliably formed and maintained in the processing liquid Q in the long processing path 60A.

That is, the q processing liquid in the small space 61A where the liquid supply lower A is located is the freshest, and the degree of deterioration increases sequentially in the subsequent small spaces 62A to 68A, and in the small space 69 where the liquid supply port 8A is located.
The processing liquid in A is the most degraded.

Further, the blade 15 touches the surface of the film F, producing an effect of wiping off the adhering liquid (hereinafter referred to as a squeeze effect).

In this manner, the formation of a liquid composition gradient in the processing path 60A and the squeezing effect of the blade 15 improve the processing efficiency of the film F, resulting in particularly high sensitivity.

Furthermore, since the processing efficiency is improved, the amount of replenishment liquid to be refilled is reduced.

After the processing of the film F is completed, the supply of the replenisher is stopped, so the flow of the processing liquid Q between adjacent small spaces is blocked by the blade.

As a result, the processing liquid Q in each of the small spaces 61A to 69A is
A state with a liquid composition gradient similar to that described above is reached, and this state remains for a long period of time (for example, 10 minutes to 50 hours) after the completion of the treatment.
continue.

Therefore, when processing the film F next time, the processing path 60
Since a liquid composition gradient has already been formed in the processing liquid Q in A, even if processing is performed immediately, the film F will have poor photographic properties and
It is particularly sensitive.

Although it is preferable to use the blade 15 to shield the processing path 60A since it has a high shielding effect, the present invention is not limited thereto, and shielding means having other configurations may be used.

Further, in the present invention, it is not necessary to provide any shielding means such as the blade 15.

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

Color developers generally consist of an alkaline aqueous solution containing a color developing agent.

The color developing agent is a primary aromatic amine developer, such as phenylene diamines (e.g. 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-ethyl-N-β-methanesulfonamidoethylaniline, 4-amino-3-methyl-N-ethyl-N-β-methoxyethylaniline, etc.) can be used.

The color developing solution may also contain a pH buffer, a development inhibitor, an antifoggant, and the like.

In addition, if necessary, water softeners, preservatives, binder solvents, development accelerators, dye-forming couplers, competitive couplers, fogging agents, auxiliary developers, viscosity-imparting agents, polycarboxylic acid chelating agents, and antioxidants are added. It may also contain agents, alkaline agents, solubilizing agents, surfactants, antifoaming agents, and the like.

As a black and white developer, a developing agent such as dihydroxybenzenes (e.g. hydroquinone), 3-pyrazolidones (e.g. l-phenyl-3-pyrazolidone), or aminophenols (e.g. N-methyl-p-aminophenol) may be used alone or Can be used in combination.

As a fixing solution, compounds (fixing agents) that have a fixing effect on silver halide include ammonium thiosulfate, sodium thiosulfate (hypo), ammonium halide,
Examples include those containing thiourea, thioether, etc.

Examples of the bleaching solution include those containing iron salts of polycarbonate, red blood salts, bromate compounds, cobalt hexazine, etc. as bleaching agents. Of these, potassium ferricyanide, sodium iron(III) ethylenediaminetetraacetate, and ammonium iron(m) ethylenediaminetetraacetate are particularly useful.

Furthermore, a bleaching/fixing solution containing both the bleaching agent and the fixing agent described above may be used.

In addition to the fixing agent, the fixing agent a (bleaching/fixing solution) can usually contain fixing aids such as preservatives such as sodium sulfite, acid agents, buffers, and hardening agents.

In addition, the bleaching solution (bleaching/fixing solution) includes U.S. Patent No. 3,0
No. 42,520, No. 3,241゜966, Special Publication No. 4
In addition to the bleaching accelerators described in Japanese Patent Publication No. 5-8506 and Japanese Patent Publication No. 45-8636, and the thiol compounds described in Japanese Patent Application Laid-open No. 53-65732, various additives can also be added.

As the washing water, water (distilled water, ion-exchanged water, etc.) or this water can contain additives as necessary.

These additives include, for example, chelating agents such as inorganic phosphoric acid, amine polycarboxylic acid, and organic phosphoric acid, fungicides that prevent the growth of various bacteria and algae, fungicides, magnesium salts,
Examples include hardening agents such as aluminum salts, surfactants for preventing drying load and unevenness, and the like. Or L, EW
est, ”Water Quality Cr1te
ria-Photo, Sci, and Eng,, vol.
9 No., 6 P344-359 (1965), etc. can also be used.

As the stabilizing liquid, a processing liquid that stabilizes the dye image is used. For example, a solution having a buffering capacity of pH 3 to 6, a solution containing an aldehyde (for example, formalin), etc. can be used. Optical brighteners, chelating agents, bactericidal agents, fungicides, hardeners, surfactants, and the like can be used in the stabilizing liquid as necessary.

For details on these processing solutions, please refer to "Fundamentals of Photographic Engineering" edited by the Photographic Society of Japan, published by Corona Publishing (1978), p. 299.
You can refer to the descriptions in "Chapter 4 Development Process", etc.

The photosensitive material processing apparatuses IA and 1B described above include, for example, a large automatic developing machine, a small automatic developing machine (mini lab), a photo print making coin machine, a portable color negative developing machine, a color negative/color paper integrated developing machine, etc. It can be applied to photosensitive material processing equipment.

Now, the film F that is the subject of the present invention has perforations (holes) formed at one or both side edges, and the density of the perforations is within 4 per screen, preferably within 2. More preferably 1
or 0.5.

Hereinafter, an example of the structure of this film F will be explained based on FIGS. 5 to 10.

As shown in FIGS. 5 to 10, the film F is used for shooting (
It is composed of a screen (image portion) Fl formed by exposure (light exposure) and a frame portion F2 formed around this screen Fl. Note that in each figure, the screen F1 is shaded.

Here, the frame portion 2 is preferably unexposed. The reason for this is that if the frame portion 2 is pre-exposed, such as with 110 film or Instamatic, the area to be developed becomes large, leading to an increase in the amount of processing solution replenishment, and the narrow processing path mentioned above. This is because it goes against the purpose of processing in the processing tank.

In addition, perforations F3 are formed in frame portions F2 at both end portions of the film F for feeding the film F within the camera and positioning the film F at the exposure section.

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

Hereinafter, an example of the formation pattern of this perforation F3 will be explained.

In the example shown in FIG.
Perforations F3 are formed at a ratio of .

This perforation F3 is used to align the exposure section in the camera.
3 are preferably formed at equal intervals.

In addition, as shown in the figure (the perforation F3 is formed at a position between the adjacent screens F1), the processing liquid flows through the perforation F3 during processing, and the processing liquid flows in the width direction of the film F. There is an advantage that even if a so-called tailing phenomenon occurs, it does not affect the screen Fl.

In the example shown in FIG. 6, two perforations F3 are formed on one side edge of the film F for each screen.

In the example shown in FIG.
Two perforations F3 are formed per screen.

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

In the example shown in FIG. 8, two perforations F3 are formed on both side edges of the film F for each screen.

In this case, the perforation F3 is formed at one side end between adjacent screens Fl, and at the other side end is formed near the center of the screen F1 in the longitudinal direction of the film, extending 17X.

FIGS. 9 and 10 show an example in which the screen F1 is )\-F size.

In the example shown in FIG. 9, perforations F3 are formed at both side edges of the film F at a ratio of two per one screen (half size).

In addition, perforation F3 of the same pattern as shown in Figure 9
When full-size photography is carried out using film F having 4 perforations, each frame (full size) has four perforations.

In the example shown in FIG. 10, perforations F3 are formed at one end of the film F at a rate of 0.5 per one screen (half size).

When half-size photography is carried out using film F having the same pattern of perforations F3 as shown in FIG. 5, the configuration shown in FIG. 1O is obtained.

Note that the formation pattern of perforation F3 is the fifth
The patterns are limited to those shown in Figures 1 to 10, and may be any combination of the patterns in each figure, or other patterns.

In this way, by controlling the formation density of perforations to 4 or less per screen, the following various effects can be obtained.

(2) In processing the film F, when the film F passes through the aforementioned narrow processing path 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 the image near the sides of the perforations, but since the number of perforations is small, such processing unevenness is prevented from occurring.

(2) Since the number of perforations is small, there is less possibility of tearing, that is, a phenomenon in which the film F is cut at the perforations when tension is applied to the film F. Furthermore, the elongation of film F is also small.

Because of this, the durability of the film F is improved.

(2) When the film F is transferred between adjacent processing tanks, for example, from a developing tank to a bleaching tank, the developer attached to the film F is brought into the bleaching tank.

In this case, the developer exists not only on the surface of the film F but also in the form of a film within the perforations, which is brought into the bleaching tank, but since the number of perforations is small, this amount As a result, stable and good processing continues, and the amount of replenishment liquid to be refilled is also reduced.

■ Because the film transport mechanism is simple, the film
Since the tongue part is unnecessary, the area of the inside or tongue part can be made smaller than before. As a result, the amount of yellowing of the developer is reduced, and the amount of replenisher replenishment is reduced.

■ On the film F, especially in the frame part F2, for example, the upper part of the photograph (presence or absence of strobe, color temperature, LV value, photographing distance, etc.)
Lens focal length, subject contrast, shooting date and time, shooting location, etc.), film information (film type,
film manufacturing date, printing conditions, etc.), laboratory information (laboratory name, development date, printing conditions for simultaneous printing, etc.)
An information recording section may be provided to record information such as.

In this case, when the number of perforations is small, the range of selection of the installation position and installation pattern of the information recording section is widened, and the area of the information recording section can also be increased.

Here, the information recording section may be of any format such as optical recording or magnetic recording.
Examples include inks, nokuichi codes, and exposed areas that utilize the photosensitivity of the film itself.

Furthermore, in the case of color film, it is possible to record information with three different color sensitivities.

In addition, such information recording is possible using IC memory (ROM, RA) in the cartridge that stores the film F.
M) and storing the information therein may be adopted alone or in combination with the above.

■ When transporting the film in the processing tank, in particular, as mentioned above, the blades 15 are installed in the processing path 60A and the paths 71 to 74.
When the blade 15 is provided, there is sliding resistance between the film F and the blade 15, so that the transport resistance of the film F increases.

The sliding resistance between the film F and the blade 15 occurs particularly at the perforations, so if the number of perforations is small, this sliding resistance is reduced and the transportability of the film F is improved. In addition, as mentioned above, the film F
is transported by being towed by a league 25, etc., but as the transport resistance increases, the tension applied to the film F increases, making it more likely to tear.Furthermore, due to the increase in tension, the edge shape of the perforation may become curved. This deforms and further increases the sliding resistance with the blade.The present invention can suppress the occurrence of such a phenomenon and improve the transportability of the film F.

(2) As mentioned in (2) above, when the number of perforations is small, the transport resistance of the film F is reduced and the number of times the perforations come into contact with the blade 15 is reduced, so that the life of the blade 15 is extended.

■ Depending on the location and spacing of the perforations, it is possible to easily and accurately transport and position the film within the camera or on 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. Examples include color negative film, color reversal film, color positive film, black and white negative film, micro film, and movie film.

Further, the size of the film F is not particularly limited, but it is usually 135 size, and in some cases, 125 size is preferable.

In the photosensitive material processing apparatus described above, the processing tank has a narrow processing space of 90% or more.
No. 034, No. 190422, No. 1-248930,
It may be attached to a processing tank having a plurality of processing chambers communicated by a narrow processing space, as disclosed in Japanese Patent No. 254641, No. 2-155667, etc., or may have a structure in which the processing liquid is injected into a narrow passage. .

In this case, the total length of the narrow passages is 20% of the total length of the processing path.
When the amount is more than about 40%, preferably about 40% or more, the behavior of the processing liquid in the narrow processing space is effectively improved, and a good finish of the photosensitive material can be obtained.

Although the present invention has been described above with reference to configuration examples, the present invention has the following features:
Needless to say, it is not limited to these.

<Example> Hereinafter, specific examples of the present invention will be described.

[Photosensitive Material Processing Apparatus] (1) As a comparison apparatus, an automatic developing machine (without a blade) manufactured by Fuji Photo Film Co., Ltd., model FNCP-40B, which has a normal box-shaped processing tank was used.

■ Narrow width of multiple processing chambers (slit width W = 2.0mm)
Processing tanks having the configuration shown in FIGS. 2 to 7, which are described in patent application (4) "Processing method for photosensitive materials for photography" filed on the same date by the applicant of the present application, connected by a passageway. An automatic processor with a The total length of the narrow passages relative to the total path length in the treatment tank was the value shown in Table 1, and each narrow passage was provided with a treatment liquid injection port under the following conditions. In addition,
A pair of silicone rubber blades having the configuration shown in FIG. 4a of the accompanying drawings of the present application were installed in each narrow passage.

Processing liquid volume is 400 cm for each small space, circulation volume is 1.51 cm.
/ minute.

(2) Same as (2) above except that the total length of the narrow passages relative to the total path length in the treatment tank was changed.

(2) An automatic developing machine having a processing tank configured as shown in FIG. 1 in which the processing space is constituted by a narrow processing path (slit width W=2.0 mm) was used.

In addition, in the processing path, eight silicone rubber blades having the configuration shown in FIG. 8b were installed along the longitudinal direction of the processing path.

The amount of treatment liquid in each small space was 50 cm, and the treatment liquid was circulated by a pump at a rate of 0.51/min and jetted from the injection nozzle 18. In this case, the depth of the injection nozzle 18 was , 3.0 mm, the injection nozzle hole size is 0.9 mm diameter, and the injection pressure is 1.5 kg/cr.
n'', the liquid linear velocity of the injection nozzle 18 was 4 m/sec.

The intervals between the injection nozzles 18 arranged in a staggered manner were 811II11 in the vertical and horizontal directions.

These conditions regarding the amount of processing liquid and the injection nozzle are as described in
The same applies to , ■.

[Treatment liquid] The following treatment liquids I to (■) were put into the treatment tanks of each of the apparatuses (1) to (2) above, and the treatment was carried out.

■...Developer prescription/Fuji Photo Film Co., Ltd. color negative processing agent CN-1
6N.

■・・・Bleach solution and fixing solution (For device ■, bleach-fix solution) Bleach solution formula/manufactured by Fuji Photo Film Co., Ltd. Color negative processing agent CN 16Nz Fixer formulation/manufactured by Fuji Photo Film Co., Ltd. Color negative processing agent CN-16N.

■... Washing water and stabilizing solution Washing water prescription / Tap water stabilizing liquid prescription / Color negative processing agent CN-16N4 manufactured by Fuji Photo Film Co., Ltd. [Film] As a color negative film (135 + I1 m width), Fuji Color Super HG manufactured by Fuji Photo Film Co., Ltd. The perforation formation pattern was as follows.

A...Number of perforations per one screen of the conventional product: 16 B...Number of perforations per one screen of the pattern shown in Fig. 9: One perforation C...Number of perforations per one screen of the pattern shown in Fig. 11 24 full-size images were taken on each of these films A, B, and C, and these films were sequentially processed using the combinations of automatic processors and processing solutions shown in Table 1 below.
The occurrence of uneven processing was investigated.

The results are shown in Table 1 below.

Note that the evaluation method for processing unevenness is as follows.

Development processing...development unevenness The position corresponding to the perforation Visually check the tailing and unevenness of the placement.

Bleaching/fixing treatment...uneven desilvering Analyze the amount of remaining silver using fluorescent X-ray analysis, Evaluate based on the degree of variation. Ba If the roughness is large, uneven desilvering will occur. This means that the

Washing (stability) treatment...Residual color unevenness (residual active ingredient unevenness) Visually judge the occurrence of unevenness after storing the processed film in an environment of 60" C170% RH. Using the above evaluation method, the occurrence of unevenness is as follows: Displayed in four stages.

0... Total occurrence of unevenness (none ○... Almost no occurrence of unevenness △... Occurrence of unevenness ×... Significant table of occurrence of unevenness As shown in Table 1 above, processing equipment ■ , (1) or (2) and film B or C in combination, the occurrence of processing unevenness is prevented for any of the processing solutions.

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

The results are shown in Table 2 below.

The evaluation method for film transportability and blade durability is as follows.

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

The symbols in Table 2 are as follows.

0...Maximum tension less than 0.7kgf O...Maximum tension Q, 7kgf or more 1.5 or more 1 Vermilion 5X
...Maximum tension: 2.2 kgf or more [Blade durability] The shielding ability (sealing ability) of the blade was evaluated after each film was passed through a treatment tank for a length of 4000 m. In addition,
The shielding ability of this blade was evaluated by the amount of liquid leaked per unit length of the blade under pressurized treatment liquid.

The symbols in Table 2 are as follows.

0...Liquid leakage amount 2m! Less than ○...Liquid leakage amount 2mj or more and less than 4rn1△...Liquid leakage amount 4mj or more and less than 8mff1×...Liquid leakage amount 8m1
As shown in Table 2 above, in the examples of the present invention in which the processing apparatus (1) or (2) is combined with the film B or C, both the film transportability and the blade durability are excellent.

<Effects of the Invention> As described above, according to the method for processing a photographic photosensitive material of the present invention, it is possible to more effectively prevent processing unevenness and tailing of the photographic photosensitive material.

In addition, especially when a blade is provided in the processing path, the transportability of the photosensitive material for photographing is improved, stretching of the photosensitive material for photographing and jamming accidents are prevented, and the durability of the blade is also improved.

Particularly in the case of a long photosensitive material for photographing, such an effect is more effectively exhibited.

[Brief explanation of drawings]

FIG. 1 is a cross-sectional side view showing an example of the configuration of a photosensitive material processing apparatus used in the present invention. 2a, 2b, 2c, and 2d are partial wall views of the narrow processing space showing the formation pattern of the injection nozzles, respectively. FIG. 3 is a sectional view taken along the line ■-■ in FIG. 1. FIGS. 4a, 4b, 4c, and 4d are sectional side views showing enlarged examples of the configuration of the blade, respectively. Figures 5, 6, 7, 8, 9 and 10
Each figure is a plan view showing the shape of a film applied to the present invention. Description of symbols IA...Photosensitive material processing equipment 2.2A...Processing tank 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 channels 61A to 69A...Small space 7A...Liquid supply port 8A...Drainage port 9A...Feed Rollers 10A, 11A... Crossover roller 15... Blade 16... Channel 17... Supply port 18... Spray nozzle 19... Suction port F... Film Fl... Screen F2 ...Frame part F3...Perforation Q...Processing liquid Nobuhito Hatake Fuji Photo Film Co., Ltd. Representative Patent attorney Seika Ishii Patent attorney
Increase 1) Tatsuya FIG, 2a 1st! F I G, 2c FIG, 2b FIG, 2d 1G・3 per day F I G, 4°F G, 4b FIG C FIG, 4d G, 5 G・6 FIG・7 G, 8

Claims (2)

[Claims] (1) A long photosensitive material for photographing can be produced using a processing tank which has a narrow processing path in the processing tank, the total length of which accounts for 20% or more of the total length of the processing path in the processing tank. When processing, the photosensitive material for photographing has perforations formed on one or both side edges thereof, and the formation density of these perforations is 4 or less per screen, and the perforations are formed within the narrow processing path. A method for processing a photosensitive material for photographing, comprising spraying a processing liquid onto the photosensitive material for photographing. (2) The method for processing a photosensitive material for photographing according to claim 1, wherein a blade capable of shielding the narrow processing path is installed in the narrow processing path.