JPH02129639A - Processing method and processing machine for photographic sensitive material - Google Patents

Abstract

PURPOSE:To allow processing with a min. volume of processing liquids and to prevent the generation of a jam trouble and pressure fog by transporting a photographic sensitive material along an impregnating belt transported along a belt transporting route having projecting bent paths and bringing the processing liquid held in the impregnating belt into contact with the emulsion surface. CONSTITUTION:The photosensitive material transporting route 16 is so disposed that the photographic sensitive material 4 can be transported along the impregnating belt 10 which travels on the belt transporting route 6 having the projecting bent paths 7. The photographic sensitive material 4 with its emulsion surface faced upward and the impregnating belt 10 are continuously transported and the developing soln. is supplied to a triangular shaped storage part 12 so as to be held in the impregnating belt 10. As a result, the photographic sensitive material 4 is brought into pressurized contact by the tension under transportation with the impregnating belt 10 traveling in the projecting bent paths 7 of the belt transporting route 6. The processing liquid impregnated into the impregnating belt 10, therefore, bleeds out in the form of films on the surface of the belt and comes into contact with the emulsion surface of the photographic sensitive material 4. The processing liquid is thus supplied to the emulsion surface. The photographic sensitive material 4 is well subjected to the color development processing in this way.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention is used for processing silver halide photographic materials such as color films and color vapors (including those with reflective supports and those with transparent supports). The present invention relates to a processing method and a processing machine for photographic materials.

[Prior Art] Conventionally, as processing methods and processing machines for this type of photographic material, there are, for example, immersion processing methods and processing machines according to the following first and second conventional examples.

The conventional processing machine of t51 has a plurality of processing tanks each having a capacity of several liters, a heater that heats the processing liquid stored in the processing tank, and a conveyance path. A feed roller and a guide roller are used to sequentially transport and immerse the photographic material into each processing tank.

In the processing machine according to the second conventional example, the main body of the processing machine is divided into upper and lower halves, and the upper and lower halves have a corrugated cross-sectional shape on their opposing surfaces, and the opposing surfaces of the upper half and the upper A slit-like conveyance path having a corrugated cross-section is formed by the opposing surfaces of the halves, and a slit-like processing liquid reservoir is formed in each valley of the wave-like cross-section of the slit-like conveyance path. Furthermore, a feed roller is provided at the terminal end of the slit-shaped conveyance path.

In both of the processing methods using the processing machines according to the first and 952 conventional examples, a processing liquid such as a developer is stored in each processing tank or each slit-shaped processing liquid reservoir,
The photographic material is transported while being immersed in these processing solutions, and is sequentially processed.

[Problem to be solved by the invention] However, in the configuration of the treatment machine according to the conventional example of IL described above, since a plurality of treatment tanks each having a capacity of several liters are provided, the amount of treated liquid increases. Therefore, it becomes difficult to manage the processing liquid, and the processing machine becomes large and heavy, resulting in high costs.

The configuration of the processing machine according to the second conventional example described above improves the size and weight of the processing machine, the reduction in cost, and the reduction in the amount of processing liquid compared to the processing machine according to the first conventional example. However, there are limitations due to the structure, and in particular, there is a risk that the photographic material may become jammed in the slit-shaped processing liquid reservoir, causing a so-called jam, and pressure buildup may also occur. Furthermore, crystals may even be generated on the inner wall of the slit-shaped processing liquid reservoir due to evaporation of processing liquid components.

Therefore, the present invention has been made to address the above-mentioned problems, and its purpose is to enable processing with the minimum amount of processing liquid, and to reduce the size and weight of the processing machine. Another object of the present invention is to provide a method and a processing machine for processing photographic materials, which can suppress the occurrence of jam troubles and pressure build-up during processing, and can also prevent the formation of crystals due to evaporation of processing liquid components.

[Means for Solving the Problems] A method for processing a photographic material of the present invention that achieves the above object includes transporting an impregnated belt along a belt transport path having a protruding bent path, The photographic light-sensitive material is conveyed by the conveyor, and the processing liquid, which is retained by being pressed against the impregnating belt at the protruding bent path due to the tension during conveyance, oozes out onto the emulsion surface in a ha-like manner on the surface. It is characterized in that it is supplied in contact and photographically processed.

The photographic light-sensitive material processing machine of the present invention that achieves the above object includes:
An impregnated belt is conveyed along a belt conveyance path having a protruding bent path, a photosensitive material is conveyed along the impregnated belt, and the photosensitive material is pressed against the impregnated belt by the tension during conveyance. It is characterized by being equipped with a plurality of processing devices according to the type of processing solution, each of which is configured to carry out photographic processing by supplying the processing solution retained in the process in a film-like state on the surface of the processing solution in contact with the emulsion surface for photographic processing. shall be.

Preferably, according to an embodiment of the present invention, (1) the processing device uses an impregnated belt having liquid retaining properties, and includes a belt conveying means for conveying the impregnated belt along a belt conveying path having a protruding bent path; .

The impregnated belt is provided with a photosensitive material conveying means for conveying the photographic photosensitive material along the impregnated belt, and a processing liquid supply means for supplying and retaining a processing liquid to the impregnated belt; (i) the impregnated belt has an open belt conveying path; (2) The impregnated belt is an endless belt that is circularly conveyed along a closed belt conveyance path.

[Function] During photographic processing of a photographic light-sensitive material, first, an impregnated belt impregnated with a processing liquid in advance or afterward is conveyed, and the photographic light-sensitive material is conveyed with the emulsion surface in contact with the impregnated belt.

As a result, the photographic light-sensitive material is pressed against the impregnated belt running along the bending path of the belt conveyance path due to the tension during conveyance. Therefore, the processing liquid contained in the impregnated belt is supplied in a state in which it oozes out in the form of a film on the surface of the impregnated belt and comes into contact with the emulsion surface of the photographic light-sensitive material, whereby the photographic light-sensitive material is photographically processed.

In this way, crystallization due to evaporation of the processing liquid is prevented, and the volumes of the processing liquid and washing liquid are significantly reduced, and there is no possibility of jam trouble or pressure build-up due to slit processing. Moreover, since the processing apparatus can be provided in multiple stages according to the type of processing liquid, it is possible to effectively utilize space and further reduce the size and weight of the processing apparatus. Therefore, the above-mentioned problem can be eliminated.

[Example] Hereinafter, an example of the present invention will be described in detail based on the drawings.

FIG. 1 is a sectional view showing a photographic material processing machine according to an embodiment of the present invention.

This processing machine includes a developing (generally color developing) device 1;
A bleach constant temperature device 2 and a water washing device 3 (which may be a stable substitute for water washing) device 3 are arranged side by side in a stepwise manner diagonally downward.

The developing device l includes first to third guide rollers 5a and 5b.
.

A belt conveyance path 6 is provided which is bent into a substantially rectangular shape by 5c. This belt conveyance path 6 is connected to the second guide roller 5
The path has a protruding bent path 7 bent at a right angle at the position b, and is open between the beginning and the end, and is connected to the supply belt reel portion 8.
is the starting point and guides the photographic material 4 by bending it at right angles.
The storage belt reel 8II9 passes through the guide roller 5a, the second guide roller 5b, and the third guide roller 5c.
It consists of a route that terminates at . The impregnated belt lo, which has an end and is conveyed along such a belt conveyance path 6, is a belt that allows the developer stored therein to ooze out onto its surface and supplies it to the photographic light-sensitive material 4. It is made by laminating a strip-shaped support that prevents penetration and a strip-shaped impregnated body that retains the developer. This impregnated body is made of impregnating cloth, paper, or sponge material.

Further, the impregnated belt IO is capable of retaining the developer after the impregnation belt IO is fed out from the supply belt reel portion 8. Specifically, the difference between the first guide roller 5a and the weir 11 is Δ.
A shaped reservoir 12 is formed, and this.

A nozzle 13 extending in the axial direction of the first guide roller 5a is faced. A pump P and a processing liquid tank 14 are sequentially connected to this nozzle 13 via a vibrator 15 .

A photosensitive material conveyance path 16 is arranged so that the photosensitive material 4 can be conveyed along an impregnated belt 10 running on a belt conveyance path 6 having a protruding bent path 7 . The photosensitive material conveyance path 18 starts from the supply photosensitive material reel 17, extends in close contact with the belt conveyance path 6 by a guide roller 18, and ends at a pair of feed rollers 19. This feed roller 19 also has a function as a squeeze roller, and a squeeze liquid reservoir 20 is arranged below it.

The bleach-fixing device 2 and the washing device 3 are connected to the developing device 1.
It has substantially the same structure as the above, and can use a bleach-fixing solution during the bleach-fixing process, and water or a stabilizing solution during the washing process. Further, the washing device 3 is provided with a drying section 21 for drying the washed photographic material 4 and a cutter 22 for cutting the dried photographic material 4 in sequence along the conveyance direction of the photographic material. or.

Next, a processing method of the processing machine having the above configuration will be explained.

When developing the photographic light-sensitive material 4, first, the photographic light-sensitive material 4 with the emulsion side facing upward and the impregnated bell) 10 are continuously conveyed, and the developer is supplied to the Δ-shaped reservoir 12, and the liquid is retained in the impregnated bell) 10. let The conveyance speed of the photographic light-sensitive material 4 and the impregnated bell 10 is set in consideration of the thickness of the developer on the emulsion surface of the photographic light-sensitive material 4. The thickness of the developer is
Although not particularly limited, frame size 8.2cII
Using a service size photographic material 4 with a size of 12 cm x 100 cm in terms of frame area, the color developing agent concentration was 1O~2.
When using 0 g/i developer, 500 g ta
It is preferably 300 #L or less, more preferably 300 #L or less.

As a result, the photosensitive material 4 is pressed against the impregnated bell 10 running on the protruding bent path 7 of the belt conveyance path 6 due to the tension during conveyance. Therefore, the processing liquid contained in the impregnated belt 10 is supplied in a state in which it oozes out in the form of a film on the surface of the impregnated belt 10 in contact with the emulsion surface of the photographic light-sensitive material 4, whereby the photographic light-sensitive material 4 is subjected to color development processing.

When the photographic material 4 that has been subjected to the color development process is conveyed to the bleach-fixing device 2, the bleach-fixing process is performed in the bleach-fixing device 2 through the same processing steps as the color development process. Further, when this bleach-fixed photographic light-sensitive material 4 is conveyed to the water washing device 3, water washing processing is performed in the water washing device 3 through processing steps similar to the one-color development processing. The photographic material 4 that has been washed with water is dried in a drying section 21, and then cut into a cutter 22.
is counted to a predetermined length.

In this way, the photographic light-sensitive material 4 can be processed with the minimum amount of processing liquid, uniform processing eliminates processing unevenness, and high-quality photographic processing can be performed over the entire emulsion surface of the photographic light-sensitive material 4. Further, it is possible to eliminate jam troubles and pressure build-up of the photographic material 4 during processing, and to prevent precipitation of crystals due to evaporation of processing liquid. Furthermore, since the impregnated belt 10 is disposable, the impregnated belt 10 does not need to be cleaned, and cleaning maintenance becomes easy. Furthermore, if each device 1, 2.3 is provided in stages, space can be used effectively and the processing machine can be made smaller and lighter. Further, in conjunction with the feed roller 9, the photographic material 4 can be conveyed by pressure contact with the impregnated belt 10.

FIG. 2 is a sectional view showing a processing machine according to a second embodiment of the present invention.

This second embodiment has substantially the same structure as the first embodiment, except that an endless impregnated belt 26 is circulated and conveyed, and the impregnated belt 26 can be cleaned when it is not used for a long time. It has the characteristics of

Specifically, in the developing device l, an endless impregnated belt 26 is wrapped around a main feed roller 27 and a sub-feed roller 28 to form a closed belt conveyance circulation path 29. The second guide rollers 30a and 30b consist of a slope path 31, a bend path 32, and a horizontal path 33, and these slope path 31, bend path 32
A photosensitive material conveyance path 34 for conveying the photographic photosensitive material 4 along the horizontal path 3 is also provided. Also ramp 31
A cleaning path 36 for cleaning the impregnated belt 26 is formed between the bent path 32 and the pedestal 35, and the cleaning path 36
A cleaning liquid reservoir 37 is formed at the lower end of the pipe 38.
A waste liquid tank 39 is connected via. Furthermore, a cleaning liquid tank 40 is connected to the pump P via a solenoid valve 41 in addition to the processing liquid tank 14 .

The bleach-fixing device 2 and the water washing device 3 have substantially the same construction as the developing device 1, and are capable of using a bleach-fixing solution during the bleach-fixing process, and water or a stabilizing solution during the washing process.

The photographic processing in this second embodiment is substantially the same as that in the first embodiment, so a description thereof will be omitted. However, when the impregnated belt 2B is not used for a long time, the impregnated belt 26 is cleaned. There is a need. Therefore, when cleaning the impregnated belt 28, first, the photosensitive material conveying path 3
Remove the photographic material 4 from 4. Next, remove the impregnated belt 2.
When B is circulated and conveyed and the cleaning liquid in the cleaning liquid tank 40 is force-fed to the nozzle 13 by the pump P, the cleaning liquid flows through the Δ-shaped reservoir 12 in the cleaning path 36 and is supplied to the impregnated belt 26 on the ramp 31. Ru. Therefore, the developer contained in the impregnated belt 26 is washed away by the cleaning liquid, and is discharged together with the cleaning liquid into the waste liquid tank 39 via the cleaning liquid reservoir 37. In the bleach-fixing device 2 and the washing device 3 as well, the impregnated belt 26 is washed through the same washing process as in the case of the developing device 1.

In addition to the effects of the first embodiment, the impregnated belt 28 can be reused by cleaning it. Furthermore, during photographic processing, the impregnated belt 2B on the ramp 31 sufficiently retains a processing liquid such as a developing solution, so that processing performance is further improved.

Note that the present invention is not limited to the above embodiments.
For example, in this first embodiment, a case has been described in which an impregnated belt that retains the processing liquid after the fact is used; however, the present invention is not limited to this. It is also possible to eliminate the need for a supply means. Furthermore, the present invention can also be applied to a processing machine that enables waterless washing processing by eliminating the need for a water washing device, if necessary. Furthermore, by providing a suppression belt and sandwiching the photographic light-sensitive material between this belt and an impregnation belt, it is also possible to supply the processing liquid to be retained in a state in which it oozes out in the form of a film on the surface of the emulsion surface and comes into contact with the surface of the emulsion. .

The photographic material and processing time to which the present invention can be preferably applied will be described below, but the present invention is not limited thereto.

The silver halide grains used in the /'10 silver emulsion layer of the photographic light-sensitive material processed according to the present invention include silver chloride, silver chlorobromide, silver chloroiodobromide, and silver iodobromide. In the present invention, it is preferable that the composition is substantially silver chloride, containing at least 80 mol%, especially 90 mol%, of silver chloride, and preferably contains only trace amounts of bromide and iodide.

In particular, when the silver chloride content is 95 mol % or more, it is preferably used because the desired effects of the present invention are well achieved and furthermore, it is quick. Particularly preferably silver chloride is 98 mol% or more. In a special case, it is also a preferred embodiment that the blue-sensitive layer is silver halide containing 30 mol% of bromide, and the other two layers, for example, the green-sensitive layer and the red-sensitive layer, contain about 9 g mol% of chloride. It is. The silver halide is preferably a core-shell grain having a double layer structure.

The silver chloride preferably used in the present invention is at least 8
Silver halide emulsion layers containing 0 mol %, in particular 90 mol %, of silver halide grains contain color couplers. These color couplers react with color developing agent oxidation products to form non-diffusible dyes. Color couplers are advantageously incorporated in non-diffusive form in or closely adjacent to the photosensitive layer.

Thus, the red-sensitive layer may contain, for example, a non-diffusive color coupler, generally a phenolic or alpha-naphthol coupler, which produces a cyan partial color image.

The green-sensitive layer may contain, for example, at least one non-diffusive color coupler which produces a magenta partial color image, usually a 5-pyrazolone color coupler and a pyrazolotriazole coupler. The blue-sensitive layer may contain, for example, at least one non-diffusive color coupler, generally a color coupler having an open-chain ketomethylene group, which produces a negative partial color image.

Color couplers can be, for example, 6-14- or 2-equivalent couplers.

In the present invention, 2-equivalent couplers are particularly preferred.

Suitable couplers are disclosed, for example, in the following publications:
Agfa research report (Mitteilunglnaus)
den Forschungslaboratory
der Agfa).

Leverkusen/Munich
n/Munchen), Vo1, 111. p, 1
11 (1961) Middle W Belts (W, Pe1z
"Color coupler" by Farbkupler
); Kay Ventakataraman (K.

Venkataraman), “The Chemistry of Synthetic Dice J”
rsry of Synthetic Dyes), Vo
l, 4, 341-387, Academic Press (8cade+sic Press), “The Theory of the Photographic Process J (Th
eTheory of the Photography
ic Process), 4th edition, pp. 353-352; and Research Disclosure.
ch Disclosure) No, 1764:1
, Section ■.

In the present invention, in particular, JP-A-63-106655
General formula [M-1] as described in the specification, page 26
Magenta couplers shown in (Specific examples of magenta couplers include Nos. 1 to 77 described in JP-A-63-106655, pages 29 to 34); The general formula [C-
I] or [C-II] cyan coupler (
Specific examples of cyan couplers include those described in the same specification, 37-
(C"-1) to (C'-82), (C" described on page 42)
-1) to (C''-36)), the high-speed yellow couplers described on page 20 of the same specification (as specific example cyan couplers, (C''-36) described on pages 21 to 26 of the same specification)
It is preferable to use Y'-1) to (Y'3g) in combination in the photographic light-sensitive material processed according to the present invention from the viewpoint of the desired effects of the present invention.

In the present invention, when a nitrogen-containing heterocyclic merkaft compound is used in combination with the high silver chloride photographic light-sensitive material preferably used in the present invention, it is possible to not only achieve the desired effects of the present invention, but also to This can be cited as a more preferred embodiment of the present invention because it has the additional effect of minimizing the influence on photographic performance that occurs when a bleach-fixing solution is mixed in with the bleach-fixing solution.

Specific examples of these element-containing heterocyclic mercapto compounds include (I'-1) to (I'-87) described in JP-A-63-106655, pages 42 to 45.

Silver chloride content preferably used in the present invention 80 mol%,
In particular, silver halide emulsions of greater than 90 mole % may be prepared by conventional methods (eg, single or double flow with constant or accelerated feed of material).

Particularly preferred is an adjustment method using a double inflow method while adjusting PAg; Research Disclosure No. 176
4:1, see Sections E and II.

Silver halide emulsions can be chemically sensitized. Particularly preferred are sulfur-containing compounds such as allyl isothiocyanate, allylthiourea or thiosulfate. Reducing agents can also be used as chemical sensitizers and are described, for example, in Belky Patent Nos. 49:1, 464 and 56.
tin compounds such as those described in US Pat. No. 8,687, and polyamines such as diethylenetriamine or aminomethylsulfinic acid derivatives, such as diethylenetriamine according to Belky Patent No. 547,323. Noble metals and precious metal compounds such as gold, platinum, palladium, iridium, ruthenium or rhodium are also suitable sensitizers. This chemical sensitization method is used in the Zeitschsoft Fair Bissenschaftliche Photography (Z, Wiss, Photo, ) 46.65-72.
(1951) by Earl Koslovsky (I1, Kos
See also Research Disclosure No. 1764:1, Section 2 above.

Silver halide emulsions are prepared by optically known methods, for example using common polymethine dyes such as neutrocyanines, basic or acidic carbocyanines, rhodacyanines, hemicyanines, styryl dyes, oxonols and the like.
Can be sensitized: F.M. Hammer ([',
M, Ra5her)'s ``Cyanine Soy and Rechit Combines J (The Cya
nine Dyes and relatedComp
ounds) (1964) Ullmann's Hemy (U I
1mannsenzyklpadie der te
Chnischen Chemie) 4th edition.

See Volume 18, page 431 and the following, and Research Disclosure No. 1764:1, section ① above.

Conventional antifoggants and stabilizers can be used in the silver halide emulsions. Azaindenes are particularly suitable stabilizers, with tetra- and penta-azaindenes being preferred, especially those substituted with hydroxyl or amino groups.

Compounds of this type are described, for example, in the paper by Birr, Zeitschrift Ver Bissenschaftliche Fotograf (Z, Wiss, Photo).
47.1952, p. 2-58, and the above Research Disclosure No. 17643, Section ■
is shown.

The components of the photographic light-sensitive material 4 can be incorporated by conventional known methods, such as U.S. Pat. No. 2,322,027.
No. 2,533,514, No. 3,689,27
No. 1, same: 1, 764. : No. 136 and No. 3,765,
See No. 897.

Components of the photographic material, such as couplers and UV absorbers, can also be included in the form of charged latex; see Sec. It can also be fixed in photographic materials as a polymer; for example, US Pat. No. 2,044,992, US Pat. No. 1,37
See No. 0,952 and No. 4,080,211.

Customary supports can be used as supports for the photographic materials processed according to the invention, such as, for example, supports of cellulose esters, such as cellulose acetate, and supports of polyesters. Paper supports are particularly suitable in the present invention, and these can be coated, for example, with polyolefins, in particular polyethylene or vopropylene; see in this regard Research Disclosure No. 17643, supra, section vvr.

Conventional hydrophilic film formers can be used as protective colloids or binders for the layers of photographic materials;
These are, for example, proteins, especially gelatin, alginic acid or its derivatives such as esters, amides or salts, cellulose conductors such as carboxymethyl cellulose and cellulose sulfate, starch or its derivatives or wood-loving synthetic binders; , see also the binders shown in Section 1x.

The layer of photographic material provided on the support can be hardened using conventional methods such as epoxide, heterocyclic ethyleneimine or acryloyl type hardeners. Further, the photographic constituent layers can be cured by a method according to Monkey Patent Application Publication No. 2,218,009 to produce a color photographic light-sensitive material suitable for high temperature operation. The above layer can also be cured with diazine, triazine or 1,2-dihydroquinoline type hardeners or vinylsulfone type hardeners. Other suitable curing agents are disclosed in Patent Application Publication No. 2, 4.
No. 39,551, No. 2,225,230 and No. 2.3
No. 17,672 and Research Disclosure 17643, supra, section Kari.

Further, in the most preferable processing step in the present invention, the processing time of all processing steps (excluding the drying step) of the color development step, bleach-fixing step, and water washing or stabilization step is preferably 90 seconds or less, and particularly preferably 60 seconds or less. It ranges from seconds to 75 seconds, more preferably from 9 seconds to 60 seconds, and most preferably from 15 seconds to 50 seconds.

In the present invention, the processing time of the color development step is preferably within 35 seconds, more preferably in the range of 3 seconds to 30 seconds, even more preferably in the range of 5 seconds to 25 seconds, and most preferably 7 seconds. It is in the range of seconds to 20 seconds.

Further, in the present invention, the processing time of the bleach-fixing step in the processing steps is preferably 10 to 50%, but from the viewpoint of the desired effect of the present invention, it is more preferably in the range of 20 to 40%. used.

In the above, the time for the entire processing process refers to the time from when the photographic light-sensitive material comes in contact with the color developer until just before it starts the drying process. Bleach-fix processing time refers to the time from when the photographic material touches the bleach-fix solution to when the same area touches the bleach-fix solution. The stabilizing processing time refers to the time from when the photographic material is washed with water or comes into contact with the stabilizing solution until just before the same part begins the drying process, and the total of these times is the time for the entire processing process.

[Effects of the Invention] According to the present invention, an impregnated belt is conveyed along a belt conveyance path having a protruding bent path, a photographic light-sensitive material is conveyed along the impregnated belt, and the tension during conveyance causes the above-mentioned The processing solution, which is held in pressure contact with the impregnating belt through the protruding bent path, is supplied in a film-like state onto the surface of the emulsion surface for photographic processing, so minimal processing is possible. In addition to making it possible to process with a small amount of liquid, the processing machine can be made smaller and lighter, and jam problems and pressure build-up can be prevented. Further, precipitation of crystals due to evaporation of the processing liquid can be prevented. Furthermore, uniform processing eliminates processing unevenness, and high quality photographic processing can be performed over the entire emulsion surface of the photographic light-sensitive material.

Furthermore, if an impregnated belt is used, it can be disposed of together with the storage belt reel, so there is no need for cleaning, and the number of parts to be cleaned is eliminated, resulting in an effect of reducing costs.

Further, processing devices such as the current fR device can be installed in stages, which results in the effect that space can be used more effectively and the processing device can be made smaller and lighter.

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing a photographic material processing machine according to a first embodiment of the invention, and FIG. 2 is a sectional view showing a processing machine according to a second embodiment of the invention. 1: Developing device 2: Bleach-fixing device 3: Washing device 4: Photographic light-sensitive materials 5a, 5b, 5c: First to third guide rollers 6; Belt conveyance path 7: Protruding bent path 10: Impregnated belt 13: Nozzle 14: Processing liquid tank 16 = Photosensitive material conveyance path 18 Guide roller 19: Feed roller

Claims (1)

[Scope of Claims] 1. An impregnated belt is conveyed along a belt conveying path having a protruding fold path, a photographic light-sensitive material is conveyed along the impregnated belt, and the protruding fold is caused by the tension during conveyance. A method for processing photographic materials, which comprises supplying a processing solution that is held in pressure contact with an impregnated belt on a curved path and brought into contact with the emulsion surface in a film-like state on the surface of the processing solution for photographic processing. . 2. An impregnated belt is conveyed along a belt conveying path having a protruding bent path, a photosensitive material is conveyed along the impregnated belt, and the impregnated belt is moved along the protruding bent path due to the tension during conveyance. It is equipped with a plurality of processing devices, depending on the type of processing liquid, that are configured to supply processing liquid that is held under pressure and in contact with the emulsion surface in a film-like state on the surface for photographic processing. Characteristic photographic material processing machine. 3. The processing device uses an impregnated belt having liquid retention properties, and a belt conveying means for conveying the impregnated belt along a belt conveying path having a protruding bent path, and a photographic light-sensitive material is conveyed along the impregnated belt. 3. The photographic material processing machine according to claim 2, further comprising: a photosensitive material conveying means for conveying the impregnated belt; and a processing liquid supply means for supplying the impregnated belt with the processing liquid and retaining the liquid therein. 4. The photographic material processing machine according to claim 2 or 3, wherein the impregnated belt is an end belt that is disposable and conveyed along an open belt conveyance path. 5. The photographic material processing machine according to claim 2 or 3, wherein the impregnated belt is an endless belt that is circulated and conveyed along a closed belt conveyance path.