JP2000003005A - Automatic developing machine for silver halide photographic sensitive material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simplify the handling and to make a rapid processing possible to be performed without being conscious of liquid by controlling so that it takes a fixed time from the time when plural partial liquids come into contact with each other till the liquids are supplied to a silver halide photographic sensitive material. SOLUTION: An air open valve 24a and opening/closing valves 22c and 22d are opened/closed in specified timings when a silver halide photographic sensitive material P is carried so that a partial liquid (a) and a partial liquid (b) are supplied from processing liquid tanks 25a and 25b to a coating liquid supply pipe through supply pipes 22a and 22b and mixed and the material P is coated with the processing liquid. The liquid is discharged from the coating discharge port 23 of the coating liquid supply pipe 22 and the partial liquid (a) and the partial liquid (b) are mixed while flowing through the pipe 22. Such control is performed that it takes a fixed time until the liquid is supplied to the material P according to the length of the pipe 22. By such constitution, a waste liquid amount is small, even and stable, the precipitation is small and the maintenance is easy.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a silver halide photographic light-sensitive material in which a silver halide photographic light-sensitive material (hereinafter also referred to simply as "light-sensitive material" or "light-sensitive material" for simplicity) is exposed and processed with a processing solution. For automatic developing machines, more specifically for silver halide photographic materials of various sizes,
The present invention relates to an automatic developing machine for silver halide photographic light-sensitive materials (hereinafter, also referred to as an automatic developing machine, a self-developing machine, or a developing machine for simplicity) capable of obtaining stable developing property and capable of rapid processing.

[0002]

2. Description of the Related Art The so-called photofinisher market for developing photographs is tending to be decentralized year by year, and the market is rapidly changing from a laboratory called a lab to a mini-lab for processing at a store specializing in photography. It is increasingly spurred. The number of places that carry out in-store processing is also increasing in supermarkets and drug stores other than photo specialty stores. In any case, you can receive it on the day you submit it to development,
Or, the development process is completed during shopping and the need to receive and return a photographic print has been met, and there is an increasing demand for such rapid processing.

[0003] Stores other than such specialty photo stores,
When developing processing in offices and the like, part-time workers and non-professionals who are not specialized operators start processing, dry equipment that does not feel liquid, simplified maintenance, stable processing, installation space, etc. Due to the problem, miniaturization of equipment is important.

In general, an automatic developing machine for a silver halide photographic light-sensitive material is a device for developing a photosensitive material which has been previously exposed to light in a camera, such as a color negative film or a color reversal film, and a color paper. There is an apparatus that has a step of performing exposure printing and a step of developing processing, but in any case, there is a processing tank filled with a processing solution in the developing processing, and a method of automatically immersing a photosensitive material therein is generally used. is there.

In such a tank processing, a replenisher is replenished to the processing tank in accordance with information on the processing area of the photosensitive material, overflows, and a steady state (running state).
The so-called replenishment method is used to form Therefore,
Since the running conditions vary depending on the type of photosensitive material to be processed and the amount of processing per day, the processing solution must be managed.A standard-exposed check piece called a control strip is developed every day and its density is adjusted. The standard values were compared and managed, and depending on the management situation, it was necessary to discharge all liquids and replace them with new liquids.

In order to avoid such complicated and specialized management, various methods have been proposed in which a developing solution is supplied to a photosensitive material as required for use and a tank solution is not used. For example, Japanese Patent Application Laid-Open No. 2-79841 proposes a method in which a sponge is impregnated with a processing solution and development is performed.
For example, Japanese Patent Application Laid-Open No. 2-79844 proposes a method of supplying a processing liquid from a slit-shaped supply port.
For example, Japanese Patent Application Laid-Open No. 9-43814 proposes a method of supplying a developing solution via a gas phase. Furthermore,
For example, Japanese Patent Application Laid-Open No. 2-99945 proposes a method in which a treatment liquid is applied using a roller.

[0007]

However, such a system in which the necessary processing solution is supplied as needed has a problem in that the processing speed is increased. In order to speed up the processing, a method has been proposed in which the treatment liquid is divided into a plurality of parts, each of them is concentrated, and the liquids are separately supplied (Japanese Patent Application No. 9-243034).

However, in such a supply method,
It is necessary to supply a plurality of liquids separately to the photosensitive material, a plurality of supply means are required, and the apparatus becomes large,
Moreover, it is difficult to control. In addition, there is a disadvantage that processing unevenness is likely to occur due to the degree of mixing of the plurality of partial liquids on the surface of the photosensitive material or in the emulsion film of the photosensitive material. It is also conceivable to supply a mixture that has been mixed in advance, but it has been found that precipitation occurs in the case of a concentrated liquid if left for a certain period of time or longer.

The present invention has been made in view of the above circumstances, and a first object of the present invention is to provide an automatic developing apparatus for a silver halide photographic light-sensitive material which is easy to handle, does not feel liquid, and can be processed quickly. Machine.

A second object of the present invention is to provide an automatic developing machine for a silver halide photographic light-sensitive material which has a small amount of waste liquid and is environmentally friendly.

A third object of the present invention is to provide an automatic developing machine for a silver halide photographic light-sensitive material which is stable and free from unevenness and which has little precipitation and is easy to maintain.

[0012]

Means for Solving the Problems In order to solve the above problems and achieve the object, the present invention has the following constitution.

[0013] The invention according to claim 1 is a method for preparing an automatic developing machine for a silver halide photographic light-sensitive material having at least a step of applying a processing solution for a silver halide photographic light-sensitive material. Control means for supplying supply to the silver halide photographic light-sensitive material, wherein the control means controls so that a certain time is required from the contact of at least two of the partial liquids to the supply of the partial liquid to the silver halide photographic light-sensitive material. An automatic developing machine for a silver halide photographic light-sensitive material, comprising: ].

According to the first aspect of the present invention, the control is performed such that a certain period of time is required from when at least two kinds of the partial liquids come into contact with each other and when they are supplied to the silver halide photographic light-sensitive material. It is simple, does not feel liquid, can be processed promptly, has a small amount of waste liquid, is environmentally friendly, and has no irregularities, is stable, and is easy to maintain with little precipitation.

According to a second aspect of the present invention, there is provided a method according to the first aspect, wherein the control means sets a time period between contact of at least two kinds of partial liquids and supply to the silver halide photographic material of 0.2 to 20 seconds. 2. The automatic developing machine for a silver halide photographic light-sensitive material according to claim 1, wherein ].

According to the second aspect of the present invention, the time from the contact of at least two kinds of partial solutions to the supply of the partial solution to the silver halide photographic light-sensitive material is controlled to 0.2 seconds to 20 seconds. Thus, the handling is simple, the liquid is not felt, and rapid processing is possible, and the maintenance is simple with no unevenness and the precipitation is small.

According to a third aspect of the present invention, there is provided a method for supplying a necessary partial liquid amount to all the processing surfaces of the silver halide photographic material according to the processing area of the silver halide photographic material to be processed. 3. The automatic developing machine for a silver halide photographic light-sensitive material according to claim 1, further comprising a control means for controlling. ].

According to the third aspect of the present invention, a necessary partial liquid amount is supplied to all the processing surfaces of the silver halide photographic material according to the processing area of the silver halide photographic material to be processed. It is easy to handle, does not feel liquid, can be processed quickly, and has a small amount of waste liquid and is environmentally friendly.

According to a fourth aspect of the present invention, there is provided a method as described above, wherein the width and length of the silver halide photographic light-sensitive material to be processed are detected in advance, and a necessary partial liquid amount is calculated based on the detected information to calculate the required partial liquid volume. 3. An automatic developing machine for a silver halide photographic light-sensitive material according to claim 1, further comprising control means for controlling supply to all the processing surfaces of the light-sensitive material. 』
It is.

According to the fourth aspect of the present invention, the width and length of the silver halide photographic light-sensitive material to be processed are detected in advance, and the necessary partial liquid amount is calculated based on the detected information to obtain the silver halide photographic material. Since it is supplied to all the processing surfaces of the photosensitive material, it is easy to handle, does not feel liquid, can be processed quickly, and has a small amount of waste liquid and is environmentally friendly.

According to a fifth aspect of the present invention, there is provided an image forming apparatus comprising:
5. The automatic developing machine for a silver halide photographic light-sensitive material according to claim 1, further comprising a heating means for heating the material to 5 [deg.] C. or more. ].

According to the fifth aspect of the present invention, the silver halide photographic material can be processed more quickly by heating it to 45 ° C. or higher.

According to a sixth aspect of the present invention, there is provided a method as described above, wherein the total amount of the partial liquid supplied to the silver halide photographic material by the supply means is 10% per m ^{2 of the} silver halide photographic material.
6. The automatic developing machine for a silver halide photographic light-sensitive material according to claim 1, further comprising control means for controlling the amount of the silver halide photographic material to 160 ml. ].

According to the invention of claim 6 wherein, the total liquid volume of the partial solution is the short supply and set smaller, but wasted and greater than the set, the total liquid volume part solution 1 m ² per 10ml By setting it to 160 ml, an appropriate amount can be supplied and the size of the automatic developing machine can be reduced.

The invention according to claim 7 is characterized in that "the invention has a cutting means for cutting a silver halide photographic material before supplying a processing solution. Automatic developing machine for silver halide photographic materials. 』
It is.

According to the present invention, the width and length of the silver halide photographic material are detected in advance by cutting the silver halide photographic material before supplying the processing solution. The required partial liquid volume can be easily calculated based on the detection information and supplied to all the processed surfaces of the silver halide photographic material. The handling is simple, the liquid is not felt, and the rapid processing is possible. The quantity is small and environmentally friendly.

[0027] The invention according to claim 8 is characterized in that "a washing means for washing a structural portion from the contact of the plurality of partial liquids to the supply to the silver halide photographic material" is provided. An automatic developing machine for a silver halide photographic material according to any one of claims 1 to 7. ].

According to the eighth aspect of the present invention, since the structural part from contacting the number of partial liquids to the supply to the silver halide photographic light-sensitive material is washed, it is stable without unevenness and has little precipitation. It is easy to maintain.

Hereinafter, the configuration of the present invention will be described in detail.

[Silver halide photographic light-sensitive material] As an example of the silver halide photographic light-sensitive material processed by the automatic processor for silver halide photographic light-sensitive material of the present invention, a silver halide color photographic light-sensitive material containing a silver chloride emulsion. Materials, a silver halide monochrome photographic material, a silver halide color photographic material containing a silver iodobromide or silver bromide emulsion, and a silver halide monochrome photographic material.

As the silver halide photographic light-sensitive material processed by the automatic processor for silver halide photographic light-sensitive material of the present invention, a silver halide emulsion in which 90 mol% or more of the silver halide composition is composed of silver chloride is used. It is preferable to have at least one emulsion layer. Further, from the viewpoint of the effect of the present invention, a silver halide emulsion comprising preferably 95 to 100 mol%, more preferably 98 to 100 mol% of silver chloride is preferable.

[Partial liquid] The partial liquid of the present invention refers to a liquid composition constituting a processing liquid applied to a photosensitive material.
That is, by mixing a plurality of partial liquids, a processing liquid to be applied to the photosensitive material is completed.

[Supplying Means] In the present invention, the supplying means supplies a processing solution comprising at least two mixed solutions to a silver halide photographic light-sensitive material, and is constituted by, for example, a discharge nozzle, a liquid pool or a roller. Specifically, the mixed processing liquid is supplied to a discharge nozzle, a liquid pool or a roller, and a liquid flow path is introduced into the roller. A liquid discharge port for generating a uniform liquid layer on the roller or as a liquid pool is provided. It is composed of a discharge nozzle, a liquid pool and a roller for supplying the material. Therefore,
In the present invention, "supplying a plurality of partial liquids to a silver halide photographic light-sensitive material after contacting them in advance" means that the roller is brought into contact with the light-sensitive material, the liquid is sprayed on the light-sensitive material by a discharge nozzle, or the liquid is discharged. This refers to pouring a liquid into a photosensitive material with a nozzle or supplying a liquid by dipping a liquid pool.

The shape of the coating / discharging port is preferably a slit formed in the axial direction of the coating roller. The dirt of the automatic developing machine member due to the dripping of the processing liquid can be reduced, and the processing liquid can be uniformly applied and supplied to the image forming surface of the silver halide photographic material with a simple structure.

Further, since a single coating / discharging port can be used, the single coating / discharging port can reduce contamination of an automatic developing machine member due to dripping of a processing solution and the like. The processing liquid can be uniformly applied and supplied to the image forming surface of the photographic material.

A preferred liquid supply amount of the coating Rorahe from the coating discharge opening, the photosensitive material 1 m ² per 10ml~160
If the total liquid supply amount is set to 10 ml to 160 ml per 1 m ² , an appropriate amount of the processing liquid is set. Can be applied and supplied, and the size of the automatic developing machine can be reduced.
It is set to 15 ml to 120 ml per m ² , more preferably ²⁰ ml to 80 ml per m ² , and it is preferable to supply a more appropriate amount of the processing liquid onto the application roller.

Further, it is preferable to control the contact angle of at least one of the processing liquid with the periphery of the coating discharge port to be in a range of 5 to 60 degrees. Is too thin. On the other hand, if it is larger than the set value, the coating film becomes too thick.
By controlling each time, the thickness of the coating film can be made uniform and appropriate.

The liquid flow path distance until the processing liquid supplied to the liquid supply pipe is applied to the image forming surface of the silver halide photographic light-sensitive material is set to 5 mm to 150 mm. It is preferable from the viewpoint that mixing can be performed and air oxidation and evaporation of the processing liquid are prevented. More preferably 7m
m to 140 mm, more preferably 10 mm to 130 m
m.

[Control Means] The control means of the present invention controls such that a certain time is required from the contact of at least two kinds of partial liquids to the supply of the partial liquids to the silver halide photographic material. Time from contact of the partial solution to supply to the silver halide photographic material is 0.2 seconds to
It is preferable to control to 20 seconds. Specifically, an opening / closing valve is provided in the liquid supply pipe so that a certain time is required from when at least two kinds of the partial liquids come into contact with each other to when they are supplied to the silver halide photographic material.

The time from contact of at least two kinds of partial liquids to supply to the silver halide photographic light-sensitive material is 0.1 minute.
If the time is less than 2 seconds to 20 seconds, the partial solution is not sufficiently mixed, and if the time is more than 0.2 seconds to 20 seconds, deterioration or precipitation may occur. , 0.
By controlling the pressure in the range of 2 seconds to 20 seconds, the handling is simple, the liquid is not felt, and rapid processing is possible, and the maintenance is stable without unevenness and the precipitation is small. Further, in order to more effectively exert the effects of the present invention, it is preferable to control within the range of 0.2 to 5 seconds.

Further, the control means controls the supply of a necessary partial liquid amount to all the processing surfaces of the silver halide photographic light-sensitive material according to the processing area of the silver halide photographic light-sensitive material to be processed. Specifically, a processing area is determined in advance for each size of the silver halide photographic light-sensitive material, and a partial liquid amount necessary for the processing area is set and supplied to all the processing surfaces of the silver halide photographic light-sensitive material. It is easy to handle, does not feel liquid, can be processed quickly, and has little waste liquid and is environmentally friendly.

Further, there is provided a cutting means, and a detection sensor for cutting the silver halide photographic light-sensitive material before supplying the processing liquid and detecting in advance the width and length of the silver halide photographic light-sensitive material to be processed, A processing area is determined based on the detection information, a partial liquid amount required for the processing area is calculated, and control is performed so as to supply the processing liquid to the entire processing surface of the silver halide photographic light-sensitive material.
The width and length of the silver halide photographic material to be processed are detected in advance, and the necessary partial liquid volume is calculated based on this detection information and supplied to all the processing surfaces of the silver halide photographic material.
It is easy to handle, does not feel liquid, can be processed quickly, and has little waste liquid and is environmentally friendly.

[Cleaning Means] In the present invention, the cleaning means cleans structural parts from contacting a plurality of partial solutions to supply to the silver halide photographic light-sensitive material. Specifically, an on-off valve is provided. When the processing is completed, the cleaning liquid is supplied to perform the cleaning. Since the structural part from contacting the number of partial solutions to supplying it to the silver halide photographic material is washed,
It is easy to maintain without unevenness and stable with little precipitation.

[Heating Means] The temperature of the photosensitive material heated by the heating means is preferably 45 ° C. or higher, more preferably 50 ° C.
Above, particularly preferably 60 ° C. or higher. In addition, the temperature is preferably 95 ° C. or less from the viewpoint of ripening resistance of the photosensitive material and ease of processing.
Furthermore, in order to prevent boiling water in the processing solution, the temperature is preferably 90 ° C. or lower, particularly 80 ° C. or lower.

As a heating means for heating the photosensitive material, a conductive heating means such as a heat drum or a heat belt for heating by conduction in contact with the photosensitive material, a convection heating means for heating by convection such as a drier, an infrared ray, Radiation heating means for heating by radiation such as high-frequency electromagnetic waves may be used.

In order to prevent the conductive heating means from being adversely affected, and to prevent the photosensitive material to be processed from being adversely affected on the emulsion surface, the heat source to be heated is from the base side of the photosensitive material to be processed which is not coated with the emulsion. Preferably, they are in contact.

In the present invention, when the photosensitive material is heated before the processing solution is supplied to the emulsion surface of the photosensitive material,
In order to reduce the influence of the difference in photosensitivity due to the temperature during exposure of the photosensitive material, it is preferable to heat the photosensitive material after the exposure of the photosensitive material is completed.

It is preferable that the heating means has a heating control means for controlling the heating means to heat it based on the presence information of the silver halide photographic material, because unnecessary heating can be prevented. This is to detect the presence of a silver halide photographic light-sensitive material at a predetermined position upstream of a heating section of a heating means in a transportation direction of the transportation means with a conveying means for conveying the silver halide photographic light-sensitive material at a predetermined conveyance speed. This can be achieved by having photosensitive material detecting means and controlling the heating control means based on the detection of the photosensitive material detecting means. The control in this case is performed immediately after the photosensitive material detecting means detects the presence of the silver halide photographic material at the predetermined position from the absence, or
Immediately after the photosensitive material detecting means detects the presence or absence of the silver halide photographic light-sensitive material at a predetermined position after a predetermined time has elapsed, or until the predetermined time has elapsed, the heating means performs a predetermined heating. Is preferred. [Color Development Processing] In the color development processing step, the photosensitive material is supplied with a color developing solution or a partial solution of the color developing solution first, and then a processing solution (for example, bleach-fix) of the next step is supplied. This is the time it takes to be immersed in the treatment liquid of the process.
The time of the color development process is preferably 3 seconds or more, particularly preferably 5 seconds or more, in order to sufficiently and stably perform the color development process, and is preferably 20 seconds or less, more preferably 16 seconds or less, and particularly preferably 12 seconds or less. Seconds or less are preferable because adverse effects on the photosensitive material such as deterioration of the color developing solution supplied to the photosensitive material and generation of precipitates due to drying can be prevented.

In the present invention, it is preferable to treat with a concentrated solution from the viewpoint of rapid treatment. That is, the diffusion of the photosensitive material into the film can be improved by increasing the concentration gradient. Usually, it has been difficult to dissolve the color developing agent at a high concentration. However, they have found that they can be dissolved in a rectangular period, leading to the present invention.

Further, conventionally, when the processing solution is stored or left untreated, the solution is oxidized in the air and turned into tar,
Although there was a problem of contamination, these can be reduced by using two divided partial liquids.

The partial solution containing the color developing solution of the present invention preferably contains a color developing agent and also contains a preservative, such as sulfites, hydroxylamines, cysteine and sulfinic acid. The color developing agent concentration is from 10 g / l to 150 g / l, preferably 15 g / l.
/ L to 100 g / l, more preferably 20 g / l to 80 g / l.

The time during which the bleach-fixing process is completely supplied onto the surface of the light-sensitive material is preferably within the first 2/3 of the bleach-fixing step, more preferably within 1/3, particularly preferably 1/3. Most preferably, it is within 10.

The supply of the bleach-fixing solution to the silver halide photographic light-sensitive material is preferably made proportional to the amount of exposure to the light-sensitive material.

[0054]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the automatic developing machine for a silver halide photographic light-sensitive material of the present invention will be described below in detail with reference to the drawings. In this embodiment, the developing process of the automatic developing machine for a silver halide photographic light-sensitive material will be described. However, the same applies to processing processes such as fixing and washing.

Example 1 FIG. 1 is a schematic configuration diagram of a processing step of an automatic developing machine, and FIG. 2 is an enlarged schematic configuration diagram of a coating supply section. This automatic developing machine includes a supply process A, an exposure process B, a development process CD, a bleach-fix process BF, a stabilization process ST, and a drying process DR. In the supply step A, a magazine 600 containing a rolled silver halide photographic light-sensitive material is set, and the light-sensitive material is sent out by a feed roller 601. The area of the silver halide photographic light-sensitive material is calculated by detecting the width and length of the silver halide photographic light-sensitive material by the area detection sensor 602. When the area reaches a predetermined area, the roll-shaped photosensitive material is cut by the cutting means 603 to form a sheet-shaped silver halide photographic light-sensitive material.

In the exposure step B, a light source 610 and a lens optical system 611 are provided, and the image of the negative film N is exposed to a sheet-like silver halide photographic material P.

In the developing process CD, a transport path 3 for transporting the silver halide photographic material P by a plurality of transport rollers 2 is formed, and the transport path 3 is provided in a horizontal direction. The silver halide photographic material P is subjected to a developing process CD
The sheet is cut before being carried into the printer, and is conveyed with the image forming surface P1 facing upward. A preheating section 10, a coating supply section 20, and a squeeze section 30 are arranged in the conveying path 3 for conveying the photosensitive material P in the order of the photosensitive material conveying direction.

In the preheating section 10, a transport roller 2 is disposed above the transport path 3, and a heat roller 11 is disposed below the transport path 3 opposite to the transport roller 2.
The heat roller 11 has a built-in heater 12, and the heat roller 11 constitutes a heating means for applying heat for processing the silver halide photographic material P. The silver halide photographic light-sensitive material P is heated to 45 ° C. to 95 ° C. by the heat roller 11, preferably 50 ° C. to 90 ° C.
In particular, the effect of the present invention was improved by heating to 60 ° C. to 80 ° C., particularly preferably.

The coating supply section 20 has a coating liquid supply pipe 22 for applying a processing liquid to the image forming image P1 of the silver halide photographic material P. The coating liquid supply pipe 22 has processing liquid tanks 25a and 25b. Supply pipes 22a, 2 from
2b, an application discharge port 23 is formed at the lower part of the application liquid supply pipe 22, and an atmosphere opening pipe 24 is formed at the upper part.
Is connected to the atmosphere release pipe 24, and the atmosphere release valve 24a
Is provided. The supply pipes 22a and 22b are provided with on-off valves 22c and 22d.

The atmosphere release valve 24a and the on-off valves 22c, 22
d is a silver halide photographic light-sensitive material P
The processing liquid is supplied just before the front end of the coating discharge port 23 is passed, and the opening and closing is controlled so that the supply is stopped immediately after the rear end passes the coating discharge port 23. The waste liquid amount is small and the environment is considered. Automatic developing machine for silver halide photographic light-sensitive materials. The on-off valve 24b is also provided near the application discharge port 23.
Forming image P1 of silver halide photographic light-sensitive material P
The processing liquid may be applied only to the processing liquid.

As described above, the atmosphere release valve 24a and the on-off valve 2
2c and 22d are opened and closed at a predetermined timing when the silver halide photographic light-sensitive material P is conveyed, and the processing liquid tanks 25a and 25d are opened and closed.
25b from the supply pipe 22
The processing liquid is supplied to the coating liquid supply pipe 22 through the a and 22b and mixed to apply the processing liquid to the silver halide photographic material P. The liquid is discharged from the coating discharge port 23 of the coating liquid supply pipe 22 and the partial liquid a
And the partial liquid b.

Depending on the length of the coating liquid supply pipe 22, control is performed such that a certain time is required until the coating liquid is supplied to the silver halide photographic material P. The processing liquid supply amount from the coating discharge port 23 of the coating liquid supply pipe 22 to the photosensitive material P1 is set at 10 ml to 160 ml per 1 m ^2.
If the supply amount of the processing liquid from is smaller than the setting, the supply is insufficient, and if it is larger than the setting, it is wasteful. However, by setting the total supply amount of the processing liquid to 10 ml to 160 ml per 1 m ² ,
An appropriate amount of the processing liquid can be supplied.

The liquid flow path distance L on the coating liquid supply pipe 22 until the processing liquid supplied from the coating and discharging port 23 is coated on the image forming surface P1 of the silver halide photographic material P.
2 is set to 5 mm to 150 mm, the processing liquid supplied on the coating liquid supply pipe 22 is uniformly mixed, and the processing liquid can be uniformly applied to the image forming surface P1 of the silver halide photographic material P. High quality processing is possible without processing unevenness. If the liquid flow path distance L2 on the coating liquid supply pipe 22 is smaller than the setting, the processing liquid is applied to the image forming surface P1 of the silver halide photographic material P before the processing liquid is uniformly mixed. If the path distance L2 is larger than the setting, the processing liquid is oxidized and deteriorated.

When the processing is completed, the open-to-atmosphere valve 24a is opened, and the cleaning liquid is supplied from the open-to-atmosphere pipe 24 to the coating liquid supply pipe 22 to clean the inside of the coating liquid supply pipe 22 and to contact a number of partial liquids a and b. Since the structural portion from the completion of the cleaning to the supply to the silver halide photographic light-sensitive material P is washed, there is no unevenness and the maintenance is simple and the precipitation is small and the maintenance is simple. The processing solution comprises at least two solutions, a partial solution containing a color developing agent and a partial solution containing an alkaline agent.

In the squeeze section 30, squeeze rollers 31 are arranged opposite to each other above and below the transport path 3, and if at least the upper side of the squeeze roller which is in contact with the image forming surface P1 of the silver halide photographic material P is used as the squeeze roller. Often, in this case, the lower side is constituted by a transport roller. The squeeze roller 31
The developer supplied on the silver halide photographic light-sensitive material P, which is disposed on the downstream side in the photosensitive material transport direction from the coating liquid supply pipe 22, is squeezed to make it uniform. Further, heaters 13 and 14 are arranged below the transport path 3.

As the squeeze roller 31, a water-absorbing sponge roller is usually used, but in the present invention, a roller having a low water-absorbing property is preferable, and a metal roller such as SUS, a plastic roller, a rubber roller, a woven fabric roller, a nonwoven fabric roller,
A sintered roller is preferred. Specifically, stainless steel (SUS316L, SUS31) is used as the metal roller.
6, SUS304, SUS303), aluminum (A
l), titanium (Ti), brass (Bs) and the like are preferable. The squeeze roller is made of polyethylene terephthalate (PE).
T), polyethylene (PE), ethylene tetrafluoride / verfluoroalkoxyethylene copolymer resin (PFA), polyacetal (POM), polypropylene (PP), polytetrafluoroethylene (PTFE), polyvinyl chloride (P
VC), phenolic resin (PF), modified polyphenylene ether (PPE), modified polyphenylene oxide (PPO), polyurethane (PU), polycarbonate (PC), polyphenylene sulfide (PPS), polyvinylidene fluoride (PVDF), ethylene tetrafluoride・
Hexafluoropropylene copolymer resin (FEP), ethylene tetrafluoride / ethylene copolymer resin (ETFE) and the like are preferable. As the rubber roller, ethylene propylene rubber (E
PDM, EPM), silicon rubber (Si), nitrile rubber (NBR), chloroprene rubber (CR) and the like are preferable. The material of the woven or nonwoven fabric is preferably a polyolefin fiber, a polyester fiber, a polyacrylonitrile fiber, an aliphatic polyamide fiber, an aromatic polyamide fiber, a polyphenylene sulfide fiber, or the like. Further, a roller coated with Teflon is more preferable.

FIG. 3 is a flowchart for mixing and supplying partial liquids. In step a, the roll-shaped photosensitive material is fed out, and in step b, the area of the silver halide photographic material is determined by calculating the width and length of the silver halide photographic material. When a predetermined area is reached, the cutting means 6
03 is used to cut the roll-shaped photosensitive material into a sheet-shaped silver halide photographic photosensitive material (step c).

In step d, the width and length of the silver halide photographic light-sensitive material to be processed are detected in advance, and the required partial liquid amount is calculated based on the detected information.
2c and 22d are opened and closed at the timing when the silver halide photographic light-sensitive material passes, a processing solution is supplied and applied only to the silver halide photographic light-sensitive material, and the open / close valve 22 is opened until the processing is completed.
Open / close control of c and 22d is performed (step e).

FIG. 4 is a schematic view showing another embodiment of the coating section of the automatic developing machine for a silver halide photographic light-sensitive material. This embodiment is configured in the same manner as the embodiment of FIG. 2, except that an application roller 21a for applying a processing liquid to the development processing step CD is disposed above the conveyance roller 2 so as to face the application roller 21a.
Rotates in the direction of the arrow. Above the application roller 21a,
A coating liquid supply pipe 22 is disposed, and a processing liquid is supplied onto the coating roller 21a from a coating discharge port 23 of the coating liquid supply pipe 22, and the processing liquid supplied by the rotation of the coating roller 21a is used as a silver halide photographic material. Apply to P. An atmosphere opening pipe 24 is connected to the upper part of the coating liquid supply pipe 22 from the side.

FIG. 5 is a schematic view showing another embodiment of the coating section of the automatic developing machine for a silver halide photographic light-sensitive material. This embodiment is configured in the same manner as the embodiment of FIG. 2, but in addition to the partial liquid a and the partial liquid b, a partial liquid c is added to the processing liquid tank 25c.
Liquid supply pipe 22 through supply pipe 22e from
The supply pipe 22e is provided with an opening / closing valve 22f. The opening / closing valve 22f is controlled to open / close in the same manner as the opening / closing valves 22c and 22d. Are mixed.

FIG. 6 is a schematic view of another embodiment of the coating section of the automatic developing machine for a silver halide photographic light-sensitive material. This embodiment is configured similarly to the embodiment of FIG. 2, except that a cleaning tank 24e is connected to the upper part of the coating liquid supply pipe 22 via a cleaning pipe 24d, and an opening / closing valve 24f is connected to the cleaning pipe 24d. Provided. When the processing is completed, the on-off valve 2
By opening 4f, the cleaning liquid is supplied from the cleaning pipe 24d to the coating liquid supply pipe 22, and the inside of the coating liquid supply pipe 22 is cleaned. As described above, since the structural parts from the contact of the partial liquids a and b to the supply to the silver halide photographic light-sensitive material P are washed, there is no unevenness, stable and little maintenance is easy, and maintenance is easy.

FIG. 7 is a schematic view of another embodiment of the coating section of the automatic developing machine for a silver halide photographic light-sensitive material. This embodiment is configured similarly to the embodiment of FIG. 2, but includes a mixing container 26 instead of the application liquid supply pipe. The on-off valve 24b provided at the lower part of the mixing vessel 26 is closed, and the on-off valves 22c and 22d and the atmosphere opening valve 24a are opened to supply the partial liquid a and the partial liquid b, and to mix in the mixing vessel 26. The opening / closing valve 24b is opened and closed at the timing when the silver halide photographic light-sensitive material passes, a processing solution is supplied and applied only to the silver halide photographic light-sensitive material, and mixing and coating are repeated until the processing is completed.

FIG. 8 is a schematic view of another embodiment of the coating section of the automatic developing machine for a silver halide photographic light-sensitive material. In this embodiment, the coating supply section 20 includes a coating liquid supply pipe 27 for applying a processing liquid to the image forming image P1 of the silver halide photographic light-sensitive material P. The coating liquid supply pipe 27 has two chambers. It is divided into 90a and 90b. Each of the two chambers 90a and 90b is supplied with and filled with the partial liquid a and the partial liquid b, and the liquid is discharged from the coating discharge ports 23a and 23b and flows through the wall surface of the coating liquid supply pipe 27. The partial liquid b is mixed.

Further, the supply amount of the processing liquid from the coating and discharging ports 23a and 23b to the photosensitive material P1 is set to 5 ml to 10 ml per 1 m ² .
If the setting is 0 ml and the supply amount of the processing liquid from the coating and discharging ports 23a and 23b is smaller than the setting, the supply is insufficient, and if the supply amount is larger than the setting, the supply is wasteful, but the total supply amount of the processing liquid is set to 10 ml to 160 ml per 1 m ^2. By doing so, an appropriate amount of the processing liquid can be supplied.

Further, the liquid flow path distance L1 on the coating liquid supply pipe 27 until the processing liquid supplied from the coating and discharging ports 23a and 23b is coated on the image forming surface P1 of the silver halide photographic material P is set to 5 mm. The processing liquid supplied to the coating liquid supply pipe 27 is uniformly mixed, and the processing liquid can be uniformly applied to the image forming surface P1 of the silver halide photographic light-sensitive material P. And high quality processing is possible. Liquid flow distance L on coating liquid supply pipe 27
If 1 is smaller than the setting, the processing liquid supplied on the coating liquid supply pipe 27 is applied to the image forming surface P1 of the silver halide photographic light-sensitive material P before the processing liquid is uniformly mixed. If the distance L1 is larger than the set value, the processing liquid is oxidized and deteriorated.

The contact angle of the coating liquid supply pipe 27 with the processing liquid is 5 degrees to 60 degrees, preferably 10 degrees to 55 degrees, more preferably 20 degrees to 40 degrees. This is preferable in that the processing liquid becomes uniform on the coating liquid supply pipe 27. The coating liquid supply pipe 27 is preferably a metal roller such as SUS, specifically, stainless steel (S
US316L, SUS316, SUS304, SUS3
03), titanium (Ti), brass (Bs) and the like.
In the case of a plastic roller or an elastic Teflon, an activator is coated so as to lower the contact angle. Further, a coating liquid supply pipe 22 having a hydrophilic material on the surface is preferable. That is, it is also preferable to laminate 6 nylon, N-methoxymethyl polyamide, polyurethane, polyacetal, or the like. Preferably, the active agent to be coated is oriented on a hydrophobic roller to direct hydrophilic groups to the surface. Therefore, it is preferable to coat an amphoteric surfactant or an alkylamine ethylene oxide compound.

FIG. 9 is a schematic view of another embodiment of the coating section of the automatic developing machine for a silver halide photographic light-sensitive material. In this embodiment, a coating roller 2 for coating a processing liquid on an image forming surface P1 of a silver halide photographic light-sensitive material P is provided in a coating supply section 20.
1 and processing liquid supply means 22 a and 22 b for supplying a processing liquid to the application roller 21.
Rotates in the transport direction at substantially the same speed as the silver halide photographic material P. The contact angle of the application roller 21 with the processing liquid is set to 5
Degrees to 60 degrees, the processing liquid supplied onto the coating roller 21 becomes uniform, and the silver halide photographic material P
The processing liquid can be uniformly applied to the image forming surface P1, and high quality processing can be performed without processing unevenness. If the contact angle of the application roller 21 with the treatment liquid is smaller than the set value, the applied film is too thin. On the other hand, if the contact angle with the treatment liquid is too large, the applied film is too thick. By setting the angle to about 60 degrees, the coating film can be made uniform and appropriate in thickness.

The supply pipes 22a, 22b are
3a and 23b, the distance between the coating and discharging ports 23a and 23b and the coating roller 21 is 0.2 mm to 10 mm, and the coating and discharging port 23 can supply a constant amount of processing liquid to the coating roller without liquid disturbance. Is smaller than the setting, the processing liquid on the application roller is disturbed by the supply pressure. If the distance is larger than the setting, the supply of the processing liquid becomes unstable and the application roller is disturbed.

FIG. 10 is a schematic view showing another embodiment of the coating section of the automatic developing machine for silver halide photographic light-sensitive materials. In this embodiment, a coating liquid supply pipe 2 configured in the same manner as in FIG.
The processing liquid obtained by mixing the partial liquid a and the partial liquid b from 2 is supplied to the mixing section 25 formed in a concave shape in the transport path, mixed in the mixing section 25, and supplied to the photosensitive material P1. The transport roller 2 rotates so as to promote the mixing of the partial liquids.

Example 2 A4 size color paper was processed. Based on the area information of the photosensitive material sent from the area detection sensor 602, the liquid amount corresponding to the A4 size is set to the on-off valves 22c, 22c,
22d was opened and closed and supplied to the coating liquid supply pipe 22.

After the supply, the opening / closing valve 24b was opened and closed, and the time until the mixed processing solution was supplied to the photosensitive material was changed as follows, and a test was performed.

[0082]

(Preparation of processing solution per liter) <Color developing agent-containing partial solution> Water 700 ml Sodium sulfite 0.4 g Diethylenetriaminepentaacetic acid pentasodium 3.0 g p-toluenesulfonic acid 30.0 g 4-amino-3-methyl- N-ethyl-N- (β- (methanesulfonamido) ethyl) aniline sulfate (CD-3) 40.0 g Add water to make 1 liter.

The pH is adjusted to 2.0 using potassium hydroxide or 50% sulfuric acid. <Alkali-containing partial solution> Water 600 ml Diethylenetriaminepentasodium pentasodium 3.0 g Potassium carbonate 80.0 g p-toluenesulfonic acid 20.0 g Water is added to make 1 liter.

The pH is adjusted to 13.0 with potassium hydroxide or 50% sulfuric acid.

The bleach-fixing process and the stabilizing process were performed using a processing agent for CPK-2-J1 process manufactured by Konica Corporation.

The processing steps are as follows.

Process time Temperature Preheat 2 seconds 70 ° C. Color developing process 10 seconds 55 ° C. Bleaching and fixing process 12 seconds 38 ° C. Stabilizing process 15 seconds 38 ° C. Drying process 15 seconds 70 ° C. Silver halide color photographic light-sensitive material is manufactured by Konica. Using color paper QA-A6, a paper width of 300 mm and a paper length of 420 mm was used. The color paper was heated by a heat roller and a phenol resin roller coated with Teflon was used as a squeeze roller.

By controlling the time from contact of the two kinds of liquids to supply to the photosensitive material of 0.2 to 20.0 seconds, the image state is good without stains, unevenness and the like. It can also be seen that the state of the liquid was good without coloration or precipitation. Further, it can be seen that there is no unevenness in the end portions by controlling the time to 0.2 to 5.0 seconds, which is more preferable.

Example 3 A4 size color paper was processed. Based on the area information of the photosensitive material sent from the area detection sensor 602, the liquid amount corresponding to the A4 size is set to the on-off valves 22c, 22c,
22d was opened and closed, the supply amounts of the partial liquids a and b were changed, and the liquid supply amount per 1 m ^{2 of the} silver halide photographic light-sensitive material was changed to test the maximum reflection blue density and unevenness of the processed light-sensitive material. .

[0091]

The occurrence of unevenness was visually confirmed. The results were as follows. The number of irregularities out of 100 sheets ×× 60 sheets or more × 30 to 59 sheets △ 10 to 29 sheets ○ Less than 10 sheets ◎ 0 sheets The liquid supply amount per 1 m ^{2 of the} silver halide photographic light-sensitive material is as follows.
10 ml to 160 ml is preferable, and more preferably 15 ml to 160 ml.
ml to 120 ml, more preferably 20 ml to 8 ml.
A test result of 0 ml was obtained.

[0093]

As described above, according to the first aspect of the present invention, the control is performed such that it takes a certain time from the contact of at least two kinds of partial liquids to the supply of the partial liquids to the silver halide photographic material. Thus, the handling is simple, the liquid is not felt, and rapid processing is possible. Further, the amount of waste liquid is small and the environment is considered. Moreover, the maintenance is stable without unevenness, and the maintenance with little precipitation is simple.

According to the second aspect of the present invention, the time from the contact of at least two kinds of partial solutions to the supply of the partial solution to the silver halide photographic light-sensitive material is controlled to 0.2 seconds to 20 seconds, so that the handling However, it is simple, does not feel a liquid, can be processed quickly, is stable without unevenness, and is easy to maintain with little precipitation.

According to the third aspect of the present invention, the necessary partial liquid amount is supplied to the entire processing surface of the silver halide photographic light-sensitive material according to the processing area of the silver halide photographic light-sensitive material to be processed. It is simple, does not feel liquid, can be processed quickly, and has little waste liquid and is environmentally friendly.

According to the fourth aspect of the present invention, the width and length of the silver halide photographic light-sensitive material to be processed are detected in advance, and the necessary partial liquid amount is calculated based on the detected information to calculate the required partial liquid volume. Since it is supplied to all processing surfaces, it is easy to handle, does not feel liquid, can be processed quickly, and has little waste liquid and is environmentally friendly.

According to the fifth aspect of the invention, by heating the silver halide photographic material to 45 ° C. or more, rapid processing with more stable performance is possible.

[0098] In the present invention of claim 6 wherein, the total liquid volume of the partial solution is the short supply and set smaller, but wasted and greater than the set, the total liquid volume part solution 1 m ² per 10ml
By setting it to 160 ml, an appropriate amount can be supplied and the size of the automatic developing machine can be reduced.

In the present invention, the width and length of the silver halide photographic light-sensitive material are detected in advance by cutting the silver halide photographic light-sensitive material before supplying the processing solution. The required partial liquid volume can be easily calculated and supplied to the entire processing surface of the silver halide photographic light-sensitive material, handling is simple, no liquid is felt, rapid processing is possible, and the amount of waste liquid is small. It is environmentally friendly.

In the invention according to claim 8, since the structural parts from contacting the number of partial solutions to the supply to the silver halide photographic light-sensitive material are washed, there is no unevenness and the maintenance is simple and the maintenance is simple. It is something.

[Brief description of the drawings]

FIG. 1 is a schematic structural view of a processing step of an automatic developing machine for a silver halide photographic light-sensitive material.

FIG. 2 is an enlarged schematic configuration diagram of a liquid supply unit.

FIG. 3 is a flow chart of mixing and supplying partial liquids.

FIG. 4 is an enlarged schematic configuration diagram of a liquid supply unit.

FIG. 5 is an enlarged schematic configuration diagram of a liquid supply unit.

FIG. 6 is an enlarged schematic configuration diagram of a liquid supply unit.

FIG. 7 is an enlarged schematic configuration diagram of a liquid supply unit.

FIG. 8 is an enlarged schematic configuration diagram of a liquid supply unit.

FIG. 9 is an enlarged schematic configuration diagram of a liquid supply unit.

FIG. 10 is an enlarged schematic configuration diagram of a liquid supply unit.

[Explanation of symbols]

 CD Developing process BF Bleaching and fixing process ST Stabilizing process DR Drying process 3 Transport path for transporting silver halide photographic material P P Silver halide photographic material P1 Image forming surface of silver halide photographic material P

Claims (8)

[Claims] In an automatic developing machine for a silver halide photographic light-sensitive material having at least a step of applying a processing solution for a silver halide photographic light-sensitive material, a plurality of partial solutions are brought into contact with each other in advance and then the silver halide photographic light-sensitive material is And a control means for controlling so that a certain period of time is required from the contact of at least two kinds of the partial liquids to the supply of the partial liquid to the silver halide photographic material. Automatic developing machine for silver halide photographic materials. 2. The control means controls the time from contact of at least two kinds of partial liquids to supply to the silver halide photographic material to a fixed time in the range of 0.2 seconds to 20 seconds. 2. The automatic developing machine for a silver halide photographic light-sensitive material according to claim 1, wherein: 3. A control means for controlling a required partial liquid amount to be supplied to all the processing surfaces of the silver halide photographic material according to a processing area of the silver halide photographic material to be processed. The method according to claim 1 or 2, wherein
An automatic developing machine for a silver halide photographic light-sensitive material as described above. 4. The width and length of the silver halide photographic light-sensitive material to be processed are detected in advance, and a necessary partial liquid amount is calculated based on the detected information to calculate the required partial liquid amount on the entire processed surface of the silver halide photographic light-sensitive material. 3. An automatic developing machine for a silver halide photographic light-sensitive material according to claim 1, further comprising control means for controlling the supply. 5. The method according to claim 1, further comprising heating means for heating the silver halide photographic material to 45 ° C. or higher before the supply by the supply means. Automatic developing machine for silver halide photographic materials. 6. A control means for controlling the total amount of the partial liquid supplied to the silver halide photographic light-sensitive material by said supply means to 10 ml to 160 ml per 1 m ^{2 of} said silver halide photographic light-sensitive material. The automatic developing machine for a silver halide photographic material according to any one of claims 1 to 5. 7. A silver halide photographic light-sensitive material according to claim 1, further comprising a cutting means for cutting the silver halide photographic light-sensitive material before supplying a processing solution. Automatic developing machine. 8. A cleaning device according to claim 1, further comprising a washing means for washing a structural part from contacting said plurality of partial liquids to supplying said partial liquid to said silver halide photographic material. An automatic developing machine for a silver halide photographic light-sensitive material according to any of the above.