JP2005049911A - Automatic developing machine for silver halide photographic sensitive material - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an automatic developing machine for a silver halide photographic sensitive material which (1) performs stable processing even in the case of low throughput per day and even in any environment and does require liquid control or maintenance such as modification of set conditions of the automatic developing machine, (2) ensures low fog and no spot and is capable of executing considerable rapid processing, (3) performs processing with dry sensation, and (4) reduces the amount of waste liquid. <P>SOLUTION: The automatic developing machine for a silver halide photographic sensitive material includes a means to supply a fist solution containing a developing agent to a silver halide photographic sensitive material, and a means to supply a second solution containing alkali chemicals in succession to the first solution to the silver halide photographic sensitive material, and also includes, just before the means to supply the fist solution containing the developing agent to the silver halide photographic sensitive material, a heating means to keep a surface temperature of the sensitive material in the range of 40-90°C when the first solution is supplied to the sensitive material. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to an automatic developing machine for silver halide photographic light-sensitive materials (hereinafter sometimes simply referred to as a self-machine) for processing a silver halide photographic light-sensitive material (hereinafter also simply referred to as a light-sensitive material or a light-sensitive material). More specifically, the present invention relates to an automatic developing machine for a silver halide photographic light-sensitive material that has improved continuous processing stability, does not require daily liquid management and equipment maintenance, and can be processed quickly and dryly.

  In recent years, so-called mini-labs often perform photographic processing by unskilled engineers with little knowledge of photographic processing, and there is a great demand for management of processing solutions and maintenance of equipment.

  Also, without knowing that the demand for speeding up the processing of photosensitive materials will not stop, various techniques such as silver halide grains having excellent developability, high-speed couplers, active processing solutions and the like are being studied. Among them, one means for activating the processing solution is to increase the concentration of the main agent in the developer. However, the composition of the color developer that has been put into practical use has a limit in increasing the development speed by increasing the concentration of the color developing agent due to solubility. On the other hand, from the viewpoint of protecting the global environment in recent years, the replenishment of processing solutions has progressed, and as a result, the daily renewal rate of photographic processing solutions tends to decrease. In particular, a color developer having a high concentration for rapid processing is prone to air oxidation, and tends to cause a problem that stable photographic processing performance cannot be maintained due to precipitation, tar generation, and deterioration of the solution.

  Also, in order to meet the recent needs for speeding up the processing of color paper, a processing method for improving the permeability of the color developing agent by separating the color developing agent and the alkali agent into two is Japanese Patent Publication No. 2-203338. This is disclosed in Japanese Patent Laid-Open No. 2-203338. However, it has been found that the techniques of these publications are still lacking in continuous process stability and rapid processability.

  JP-A-7-333802 also discloses a speed-up technique by processing at a high temperature treatment of 38 ° C. to 50 ° C., but is susceptible to air oxidation, precipitation of precipitates, generation of tar, and further Stable processing performance cannot be maintained due to deterioration.

  In order to improve air oxidation, a processing method in which a color developer is sealed in a hermetically sealed container and sprayed is disclosed in JP-A-6-324455. Only the technology disclosed in this publication cannot provide sufficient development characteristics and is not practical. Although a spray type processing method is also disclosed in US Pat. No. 5,121,131, a photosensitive material after development is processed with an oxidizing solution, and the object and the embodiment are different from the present invention. Yes. In addition, it has been found that these spraying methods cause the occurrence of pot unevenness and become a serious problem. In the present invention, “potchimura” refers to a phenomenon in which the processing solution is repelled on the surface of the photosensitive material and the processing solution does not partially spread.

  Due to the rapid increase in minilab shops in recent years, there is a demand for a processing system that can be used even by people who are not familiar with the handling of equipment. Further, there are cases where the installation location of the minilab is outdoors, and stable processing is required under any environment.

  Today's photosensitive material processing automatic processors are developed in a tank containing a large volume of processing liquid, processed while being replenished with replenisher, and so to speak, with so-called fatigue liquid. The activity of the developing solution changes depending on the management of the processing solution and the daily processing amount, and it is difficult to always obtain a constant developability. There is a need for a processing system that does not degrade the developer.

  In order to achieve rapidity, it is necessary to increase the concentration of the main agent, but this is not possible with the current color developer system due to problems with the solubility of the main agent and crystal precipitation.

  Furthermore, automatic developing machines are used in offices and the like, and there is a demand for a system that feels dry, that is, a dry feeling.

  Therefore, the present inventors can directly heat the photosensitive material and take the constitution of the present invention to promote the diffusion of the active ingredient to the lower layer, without causing deterioration of the processing solution, and suppressing the occurrence of spot unevenness, In addition, a system that achieves surprisingly rapid performance by suppressing the occurrence of thermal fog was realized.

  Accordingly, the object of the present invention is to process a silver halide photographic light-sensitive material per day in a small amount (processing of 3 to 5 35 mm films per day) and in any environment. This is a processing device that is stable, requires no maintenance such as liquid management and correction of the condition setting of the self-machine, secondly has low fog, does not cause unevenness, and can be greatly accelerated. The fourth object is to provide an automatic developing machine for a silver halide photographic light-sensitive material in which the amount of waste liquid is greatly reduced.

The above object of the present invention is achieved by the following configurations.
1. Means for supplying a first liquid containing a developing agent to the silver halide photographic light-sensitive material; means for supplying a second liquid containing an alkali agent to the silver halide photographic light-sensitive material following the first liquid; and It is characterized by having heating means for maintaining the surface temperature of the photosensitive material in the range of 40 to 90 degrees when supplied to the photosensitive material immediately before the means for supplying the contained first solution to the silver halide photographic photosensitive material. Automatic developing machine for silver halide photographic materials.
2. 2. The automatic development for a silver halide photographic light-sensitive material as described in 1 above, further comprising means for supplying a processing solution having a bleaching ability for 5 to 20 seconds after supplying the first liquid to the light-sensitive material. Machine.
3. 3. Halogenation according to 1 or 2 above, further comprising supply means for supplying the first liquid and / or the second liquid supplied to the photosensitive material in a range of 5 ml to 100 ml per 1 m ² . Automatic developing machine for silver photographic materials.
4). 4. The silver halide photographic light-sensitive material according to any one of 1 to 3, wherein the surface tension of at least one of the first liquid and the second liquid is in the range of 20 dyne / cm to 45 dyne / cm. Automatic processing machine for materials.
5. 5. The automatic development for a silver halide photographic light-sensitive material according to any one of 1 to 4 above, further comprising control means for supplying the second liquid within 4.5 seconds after the supply of the first liquid. Machine.
6). The silver halide photographic light-sensitive material according to any one of 1 to 5, wherein the first liquid and the second liquid have a liquid holding container that does not substantially contact each other before being supplied to the photosensitive material. Automatic processing machine for materials.
7. The automatic developing machine for silver halide photographic light-sensitive materials according to any one of 1 to 6, further comprising means for supplying at least one of the first liquid and the second liquid via a gas phase.
8). 2. A means for maintaining the surface temperature of the photosensitive material in a range of 40 to 90 degrees while the first and second liquids are supplied to the silver halide photographic light-sensitive material. 8. An automatic developing machine for silver halide photographic light-sensitive materials according to any one of 7 above.

  According to the present invention, firstly, the processing is stable under any environment, maintenance such as correction of liquid management and condition setting of the self-machine is unnecessary, and secondly, fog is low, and there is no occurrence of spot unevenness, An automatic processor for silver halide photographic light-sensitive materials is provided which is a processing apparatus capable of drastically increasing speed, and thirdly, a dry feeling, and fourthly, the amount of waste liquid is greatly reduced.

  Hereinafter, the present invention will be described in detail.

  In the present invention, the development processing step refers to a processing solution (for example, a bleach-fixing solution, a bleaching solution, a stop solution) for the next step after the photosensitive material is supplied with the first developing processing solution (first solution). Etc.) until it is supplied or immersed in the treatment liquid of the next step.

  The development processing time is from when the photosensitive material is first supplied with the first solution until the processing solution for the next step, i.e., the processing solution with bleaching ability or the washing solution is supplied or immersed in the processing solution for the next step. Is the time. The time for this development step is preferably 5 to 45 seconds, more preferably 5 to 20 seconds.

  The first liquid in the present invention is a color developing agent or a processing liquid containing a developing agent, and is an aqueous solution containing a surfactant, a solubilizing agent for a color developing agent, a preservative, and the like. The second liquid is a processing liquid containing an alkali as a main component, and is an aqueous solution containing a surfactant, a color developing agent solubilizer, a preservative, a chelating agent, and the like.

  The first liquid usually has a pH of 7 or lower and the second liquid has a pH of 8 or higher. Preferably, the first liquid has a pH of 4 or lower and the second liquid has a pH of 10 or higher.

The color developing agent used in the present invention is preferably a paraphenylenediamine compound,
As the paraphenylenediamine compound, a compound having a water-soluble group is preferable. Examples of the paraphenylenediamine compound having a water-soluble group include those having at least one water-soluble group on the amino group or on the benzene nucleus of the paraphenylenediamine compound. Specific water-soluble _{group, - (CH 2) n-} CH 2 OH, - (CH 2) m -NHSO 2 - (CH 2) n CH 3, - (CH 2) m -O- (CH 2 ) _N- CH ₃ , — (CH ₂ CH ₂ O) _n C _m H _{2m + 1} , (m and n each represents an integer of 0 or more) —COOH group, —SO ₃ H group and the like are preferable. Can be mentioned.

  Specific examples of the paraphenylenediamine compound preferably used in the present invention include (C-1) to (C-16) and 3-246543 described in JP-A-4-86741, pages 7-9. (1)-(26) etc. which are described in No. 6-10 pages.

  The paraphenylenediamine compounds are usually used in the form of hydrochloride, sulfate, and p-toluenesulfonate.

  The addition amount is used in the range of 10 g / l to 150 g / l, preferably 10 g / l to 100 g / l, more preferably 15 g / l to 70 g / l.

  The developing agent of the present invention is preferably phenidone, 4-hydroxymethyl-4-methyl-1-phenyl-3-pyrazolidone, metol, ascorbic acid, hydroquinone and the like.

  Examples of the solubilizer of the color developing agent used in the present invention include triethanolamine, polyethylene glycols, and paratoluenesulfonic acid described in Japanese Patent Application No. 7-10769. The amount added is usually 1 g to 100 g per liter, preferably 5 g to 80 g, more preferably 10 g to 50 g.

  The alkaline agent of the present invention is one that exhibits alkalinity of pH 8.0 or higher when 7.0 g is dissolved in pure water and finished to 1 L. Preferred specific examples include potassium carbonate, sodium carbonate, bicarbonate Sodium, potassium bicarbonate, trisodium phosphate, tripotassium phosphate, dipotassium phosphate, sodium borate, potassium borate, sodium tetraborate (boric acid), potassium tetraborate, potassium hydroxide, sodium hydroxide And alkali metal compounds such as lithium hydroxide.

  From the viewpoint of the effect of the present invention, sodium carbonate, sodium bicarbonate, trisodium phosphate, sodium borate and the like are preferable, and sodium carbonate is particularly preferably used among them in the present invention.

  The amount added is usually in the range of 10 g / l to 300 g / l, preferably 10 g / l to 150 g / l, more preferably 20 g / l to 100 g / l.

  Examples of the preservative used in the present invention include sodium sulfite, hydroxylamine, and hydroxylamines described in JP-A-8-29924, pages 9-13.

  The surface tension of the developer of the present invention is preferably 20 dyne / cm to 45 dyne / cm. More preferably, it is 25 dyne / cm-35 dyne / cm. In order to adjust the surface tension, the fluorine-based activator disclosed in JP-A-7-92634, pages 3-5, or ethylene disclosed in JP-A-4-299340, pages 11-31. It is preferable to contain an active agent such as an oxide-based or glycidol-based nonionic type or a water-soluble organic siloxane type.

The amount of the developing processing solution supplied from the respective supply means to the emulsion surface of the silver halide photographic light-sensitive material is preferably 5 to 100 ml per 1 m ² of the light-sensitive material, more preferably 10 to 60 ml, and further preferably 10 to 10 ml. Most preferably, it is 30 ml.

  The time during which the second liquid is supplied to the photosensitive material surface is preferably within 4.5 seconds after the first liquid is supplied, but more preferably within 0.1 second to 2 seconds.

The supply of the color developing solution to the silver halide photographic light-sensitive material is preferably proportional to the amount of exposure to the light-sensitive material, but may not be proportional.
[Heating means]
The surface temperature of the light-sensitive material heated by the heating means is 40 ° C to 90 ° C, more preferably 45 ° C or higher, and particularly preferably 50 ° C or higher. In addition, from the viewpoint of heat resistance of the photosensitive material and controllability of processing, in order to further prevent reticulation of the photosensitive material, a temperature of 70 ° C. or lower is particularly preferable.

  As a heating means for heating the photosensitive material, a conductive heating means for heating by conduction in contact with a photosensitive material such as a thermal drum or a heat belt, a convection heating means for heating by convection such as a dryer, an infrared or high frequency electromagnetic wave, etc. And radiant heating means for heating by the radiation.

Photosensitive materials that have been heated just before the treatment liquid is supplied by these means. Further, it is preferable to heat by these means and keep at a predetermined temperature (40 to 90 ° C.) while being supplied and until the next bleaching step, and after supplying the first solution to the photosensitive material, It is preferable to have means for supplying a processing solution having bleaching ability within 5 to 20 seconds.

In addition, when the silver halide photographic light-sensitive material is present before the heating means heats, it is preferable to have a heating control means for controlling the heating means so that unnecessary heating can be prevented. This is due to the presence of the silver halide photographic light-sensitive material at a predetermined position upstream of the conveying means in the conveying direction with respect to the conveying means for conveying the silver halide photographic light-sensitive material at a predetermined conveying speed. This can be achieved by controlling the heating control unit based on the detection of the photosensitive material detection unit. In this case, the light-sensitive material detecting means detects the presence of the silver halide photographic light-sensitive material at the predetermined position from the absence of the silver halide photographic light-sensitive material, and then the light-sensitive material detecting means detects that the silver halide at the predetermined position has elapsed. It is preferable to control the heating means to perform predetermined heating from the detection of the presence of the photographic light-sensitive material until a predetermined time has elapsed.
"Developer supply means"
The processing liquid supply means can be broadly classified into a method of jetting a liquid and supplying it through a gas phase, and a method of supplying the liquid by applying the liquid with a roller or directly contacting it. In the present invention, a method of supplying via a gas phase is preferable.

  The method of supplying via the gas phase is to supply the liquid to the photosensitive material by using a piezo-type ink jet head that utilizes the vibration of the piezoelectric element, or to cause the liquid to fly using a thermal jet head that uses bumping. This is preferable because the supply amount of the processing solution can be controlled and the processing position of the photosensitive material can be selected. Further, there is a method of spraying the liquid by pressurizing the liquid like a spray bar.

The method of supplying via the gas phase, preferably supplied in a liquid droplet, the volume is preferably ^{0.1 × 10 -6 ml~50 × 10 -6} ml of the treatment liquid droplets supplied to once more preferably ^{0.5 × 10 -6 ml~5 × 10 -6} ml.

  Next, in the application or direct contact method, air doctor coater, blade coater, rod coater, knife coater, squeeze coater, impregnation coater, reverse roller coater, transfer roll coater, curtain coater, double roller, slide hopper, gravure coater, kiss roll Examples thereof include a coater, a bead coater, a cast coater, a spray coater, a calendar coater, and an extrusion coater. The coating or direct contact method preferably used in the present invention is a squeeze coater, a gravure coater, an impregnation coater, a bead coater, or a blade coater from the viewpoint of the coating amount and the viscosity of the treatment liquid.

  Felt coating, gravure roll, and dip coating are preferable from the viewpoints of compactness and simplicity of the apparatus, and a preferable supply amount in the present invention.

  In particular, in the inkjet method, the nozzles may be arranged in a line and supplied by a fixed head, or the liquid may be supplied while scanning the head.

In addition, the distance between the processed supply port and the photosensitive material emulsion surface is preferably 50 microns or more (particularly 1 mm or more) from the viewpoint of flying the liquid, and is preferably 10 millimeters or less (particularly 5 mm or less) from the viewpoint of preventing scattering.
[Silver halide photographic material]
Examples of the light-sensitive material used in the present invention include a silver halide color photographic light-sensitive material containing a silver chloride emulsion, a silver halide color photographic light-sensitive material containing a silver iodobromide or silver bromide emulsion, a monochrome light-sensitive material, Examples thereof include a silver halide photographic light-sensitive material for X-ray coated with a double-sided emulsion.

Hereinafter, the present invention will be described more specifically with reference to examples. However, the embodiment of the present invention is not limited thereto.
Example 1
〔apparatus〕
FIG. 1 is a schematic configuration diagram of a main part of the self-machine according to the first embodiment. There is a heating means 10 for heating the silver halide photographic light-sensitive material P upstream of the transport path of the silver halide photographic light-sensitive material P processed by the processing solution. The heating means 10 includes a heating drum 11. Further, an exit side roller 12 is provided above the heating drum 11. There is an inlet side roller 13 on the left side of the heating drum 11. There is a pressure-bonding belt driving roller 14 on the left side of the outlet side roller 12 and above the inlet side roller 13. The pressure belt 15 is stretched over the outlet side roller 12, the inlet side roller 13 and the pressure belt driving roller 14, and moves while being pressed by the heating drum 11 over a 90 ° section of the peripheral surface of the heating drum 11. Then, the photosensitive material P is pressure-bonded to the heating drum 11 and conveyed. As a result, the photosensitive material P is heated.

  The developing processing means 20 is located downstream of the conveying path of the photosensitive material P on the heating drum 11. The development processing unit 20 includes a processing liquid container 25 that stores a first liquid for processing the photosensitive material P. The processing liquid container 25 is sealed against the outside air. As the processing liquid supply means 26, a supply head described later is used. Thereby, the processing liquid supply means 26 supplies the color developer to the emulsion surface of the photosensitive material P heated by the heating means 10 via the gas phase.

  Subsequently, the second solution is supplied to the emulsion surface of the photosensitive material P in the same manner via the gas phase. The second liquid is supplied 0.5 seconds after the first developer is supplied.

  There is a second heating means 30 for heating from the upstream side to the downstream side of the conveying path of the photosensitive material where the processing liquid is supplied via the gas phase by the processing liquid supply means 26 and 28. The second heating unit 30 includes a heating roller 31, a driving roller 32, and a heating belt 33. The heating belt 33 is stretched between the heating roller 31 and the driving roller 32. The heating roller 31 is on the upstream side of the conveyance path of the photosensitive material P to which the processing liquid is supplied via the gas phase by the processing liquid supply units 26 and 28, and heats the heating belt 33. A drive roller 32 on the downstream side of the conveying path of the photosensitive material P with respect to the heating roller 31 drives the heating belt 33. Thereby, the photosensitive material P is heated in a state where the heating belt 33 is heated. Then, the processing liquid supply means 26 and 28 supply the processing liquid to the emulsion surface of the silver halide photographic light-sensitive material being heated by the second heating means 30 via the gas phase. Further, the second heating means 30 heats the silver halide photographic light-sensitive material supplied with the processing liquid to the emulsion surface via the gas phase by the processing liquid supply means 26 and 28.

  Thereafter, the photosensitive material P which has been color-developed by the developing means 20 is bleach-fixed in the bleach-fixing processing solution tank BF, and is stabilized in the stabilization processing tank ST.

FIG. 3 is a schematic configuration part of the second heating means 30. The photosensitive material P on the heating belt 33 in which holes with a diameter of 5 mm are opened at intervals of 15 mm is sucked and pressure-bonded to the belt by the suction pump 34. The heating belt 33 includes a surface heater in the heating belt, and the photosensitive material P can be heated to a predetermined temperature. The heating belt 33 is driven by the drive motor 35. Reference numeral 36 denotes a suction port, 37 denotes a heating belt, and 38 denotes a heating roller.
[Heating conditions]
The photosensitive material emulsion surface temperature is set to 80 ° C. by the heating drum 11 having a surface temperature of 80 ° C.
[Second heating condition]
The surface of the photosensitive material P is heated by the heating belt 33 having a surface temperature of 80 ° C., and the temperature of the photosensitive material emulsion surface is maintained at 80 ° C.
[Supply head]
A piezo ink jet type linear feeding head is used. This linear supply head is perpendicular to the conveying direction of the photosensitive material. The supply port array is a two-row staggered array. The interval between the supply ports is a distance of 200 μm between the closest supply ports. With a supply port diameter of 100 μm (area 7.85 × 10 ⁻⁹ m ² ), the processing solution is supplied 5000 times per ^second , and the processing solution supply amount per 1 m ^{2 of the} silver halide photographic light-sensitive material is 50 ml.
[Photosensitive material]
Using Konica QA-A6 paper exposed in the usual way.
{Processing liquid formulation in processing liquid container}
(Processing liquid formulation: per liter)
1st liquid sodium sulfite 0.4g
Diethylenetriaminepentaacetic acid 5sodium 3.0 g
p-Toluenesulfonic acid 20.0g
4-Amino-3-methyl-N-ethyl-N- (B- (methanesulfonamido) ethyl) aniline sulfate (CD-3) 40.0 g
Adjust to pH 2.0 using potassium hydroxide or sulfuric acid.
2nd liquid Diethylenetriaminepentaacetic acid 5thium thorium 3.0g
Potassium carbonate 80.0g
p-Toluenesulfonic acid 20.0g
Adjust to pH 13.5 using potassium hydroxide or sulfuric acid.
(Bleaching and stabilization process)
It processed using the processing agent for the process conditions of Konica Corporation CPK-2-28 process.
[Pochimura: Visual evaluation]
Evaluation criteria ○: No occurrence at all
Δ: There is no problem in practicality, but it occurs slightly,
X: A level that occurs and causes a problem in photographic performance.

Results Rapid color development was possible, no unevenness occurred, and the processing solution was not scattered, and good results were obtained.
Example 2
〔apparatus〕
FIG. 2 is a schematic configuration diagram of the self-machine according to the second embodiment.

  The development processing means 40 is located downstream of the conveyance path of the photosensitive material P on the heating drum 11. The development processing unit 40 includes a processing liquid container 43 that stores a first liquid for processing the photosensitive material P. As the processing liquid supply means 42, a gravure roll described later is used. As a result, the processing liquid supply means 42 supplies the color developer to the emulsion surface of the photosensitive material P heated by the heating means 10. At this time, a counter roller is provided on the back side of the photosensitive material P and is pressure-bonded to the photosensitive material P.

  Subsequently, the second liquid is supplied in the same manner. The second liquid is supplied 1.0 second after the supply of the first liquid.

  There is a second heating means 30 for heating from the upstream side to the downstream side of the conveyance path of the photosensitive material P where the processing liquid is supplied by the processing liquid supply means 42 and 45. The second heating unit 30 includes a heating roller 31, a driving roller 32, and a heating belt 33. The heating belt 33 is stretched between the heating roller 31 and the driving roller 32. The heating roller 31 is on the upstream side of the transport path of the photosensitive material P to which the processing liquid is supplied via the gas phase by the processing liquid supply units 42 and 43, and heats the heating belt 33. A drive roller 32 on the downstream side of the conveying path of the photosensitive material P with respect to the heating roller 31 drives the heating belt 33. Thereby, the photosensitive material P is heated in a state where the heating belt 33 is heated. Then, the processing solution supply means 42 and 45 supply the processing solution to the emulsion surface of the silver halide photographic light-sensitive material P being heated by the second heating means 30. Further, the second heating means 30 heats the silver halide photographic light-sensitive material P supplied with the processing liquid on the emulsion surface by the processing liquid supply means 42 and 45. Alternatively, a large number of holes may be formed in the heating belt, and the heating belt and the photosensitive material P may be brought into close contact with each other by suction from the rear portion of the belt with a fan or an air compressor.

Thereafter, the photosensitive material P which has been color-developed by the developing means 40 is subjected to bleach-fixing processing in the bleach-fixing processing solution tank BF and stabilized in the stabilization processing tank ST.
[Heating conditions]
The photosensitive material emulsion surface temperature is set to 80 ° C. by the heating drum 11 having a surface temperature of 80 ° C.
[Second heating condition]
The surface of the photosensitive material P is heated by the heating belt 33 having a surface temperature of 80 ° C., and the temperature of the photosensitive material emulsion surface is maintained at 80 ° C.
[Supply head]
Use a gravure roll. The rotation speed of the gravure roll is 100 times per minute in the transport direction. The gravure roll has a lateral pitch of 80 lines per inch and a spiral type.
[Photosensitive material]
Same as Example 1.
{Processing liquid formulation in processing liquid container}
Same as Example 1.

Results Rapid color development was possible, no unevenness occurred, no processing solution was dripped, and good results were obtained. Further, by attaching the blade shown in FIG. 6b to the roller 45, the first liquid in the container and the second liquid in the container can be prevented from substantially contacting each other, and the development stability is improved.
Example 3
Using the self-existing machine shown in FIG. 1 of Example 1, the developing process time was set to 12 seconds, the surface temperature of the photosensitive material was changed as shown in Table 1, and the sample previously exposed in a wedge shape was processed. Except for the above, the same operation as in Example 1 was performed, and the occurrence of spot unevenness in the sample after the treatment was evaluated according to the same evaluation criteria as in Example 1. Further, the density of Dmin was measured to evaluate the degree of development fog. Further, the emulsion surface of the sample was observed to examine the presence or absence of reticulation.
[Photosensitive material]
Same as Example 1.
{Processing liquid formulation in processing liquid container}
Same as Example 1.

As is apparent from Table 1, it can be seen that holding the surface temperature of the photosensitive material at 40 ° to 90 ° suppresses the occurrence of spot unevenness, suppresses the occurrence of reticulation of the photosensitive material, and suppresses the fog density of the photosensitive material. .
Example 4
Experiment No. 3 in Example 3 The same operation and evaluation as in Example 1 were performed except that the color development processing time was changed as shown in Table 2 in 1-6. The concentration of Dmax (Y) was also measured. In the embodiment of the present invention, when Dmax (Y) is lower than 1.9, the concentration is insufficient, and when it is larger than 2.0, the concentration is sufficient. The development unevenness was visually observed and evaluated. The uneven development in the present invention means that a slight difference in development density occurs at the same exposure amount. Further, the development fog was measured by Dmix (M) and evaluated by that value.
[Photosensitive material]
Same as Example 1.
{Processing liquid formulation in processing liquid container}
Same as Example 1.

Results When the development processing time is less than 5 seconds, sufficient Dmax cannot be obtained, and some development unevenness is observed. When the development processing time exceeds 20 seconds, the development fog increases, and 5 to 20 seconds is a more preferable region. is there. There was no potimula.
Example 5
Experiment No. 3 in Example 3 The same operation and evaluation as in Example 4 were performed except that the liquid supply amount was changed as shown in Table 3 in 1-6.
[Photosensitive material]
Same as Example 1.
{Processing liquid formulation in processing liquid container}
Same as Example 1.

Results When the liquid supply amount is within the preferred range of the present invention, no uneven development occurs and good gradation is obtained. There was no potimula.
Example 6
Experiment No. 3 in Example 3 The same operation and evaluation as in Example 4 were performed except that the surface tension was changed as shown in Table 4 by adding the surfactant shown in Table 4 in 1-4. Moreover, it was left to stand for 24 hours and the liquid dripping of the orifice part of the nozzle was observed.
[Photosensitive material]
Same as Example 1.
{Processing liquid formulation in processing liquid container}
Same as Example 1.

Compound I: p-octylphenol / ethylenoxide 10 mol adduct Compound II: p-nonylphenol / 2-hydroxypropylenoxide 10 mol adduct Compound III: lithium perfluorooctyl sulfonate Result Liquid feed rate is a preferred range of the present invention. As a result, there was no uneven development and a good gradation was obtained. Also, no dripping occurs.
Example 7
FIG. 4 is a schematic view of a developing unit of an automatic developing machine that performs serial processing using an inkjet head having a narrow nozzle width. The photosensitive material P passes through the heating means in the same manner as in Example 1 and is conveyed to the lower part of the droplet. The processing liquid supply means 51 and 52 are means for supplying the first liquid and the second liquid, respectively, and move to the left and right in the direction perpendicular to the photosensitive material transport direction to supply the processing liquid onto the photosensitive material P. The treatment liquid supply means 51 and 52 are configured to be shifted forward and backward by the width of the head nozzle row so that the first liquid is supplied first. After the treatment liquid is supplied, it is transported and transported to the BF tank while being heated by the same apparatus as in the first embodiment.

The processing liquid is sequentially supplied from the supply pipe 55 to the processing liquid supply means 51 and 52, respectively.
[Supply head]
Use a piezo inkjet feed head. The direction of the nozzle row of the supply head is parallel to the conveying direction of the photosensitive material P. The arrangement of the supply ports is a two-row staggered arrangement as shown in FIG. The interval between the supply ports is 150 μm. The diameter of the supply port is 90 μm, the processing solution is supplied 7500 times per ^second , and the processing solution supply amount per 1 m ^{2 of the} silver halide photographic light-sensitive material is 30 ml. The scanning speed of the supply head is 800 mm / sec. The heating conditions are the same as in Example 1.
[Photosensitive material]
Same as Example 1.
{Processing liquid formulation in processing liquid container}
Same as Example 1.
Results Rapid color development was possible, no unevenness occurred, and the processing solution was not scattered, and good results were obtained.
Example 8
FIG. 5 shows the processing liquid supply means using a squeeze coater system. The first liquid in the processing liquid reservoir 61 is supplied to the photosensitive material P by the roller 64, and the second liquid in the processing liquid reservoir 62 is continuously supplied to the photosensitive material P by the roller 65. Other heating means and the like are the same as those in the first embodiment.
Results Rapid color development was possible, no unevenness occurred, and the processing solution was not scattered, and good results were obtained.
Example 9
FIG. 6 shows an example in which an impregnation coater method and a gravure coater method are used as the treatment liquid supply means. The first liquid 71 is supplied to the photosensitive material P by the liquid reservoir 70, and the second liquid 74 of the processing liquid reservoir 73 is continuously supplied to the photosensitive material P by the roller 75. The opposing roller 76 is pressure-bonded only when the photosensitive material P is conveyed. The liquid mixed by the blade 77 is prevented from entering the processing liquid reservoir 73. That is, as shown in FIG. 6B, the liquid mixed from the roller 75 is scraped off by the blade 77 and poured into the liquid discharge port 78. Other heating means and the like are the same as those in the first embodiment.
[Photosensitive material]
Same as Example 1.
{Processing liquid formulation in processing liquid container}
Same as Example 1.
Results Rapid color development was possible, no unevenness occurred, and the processing solution was not scattered, and good results were obtained.

It is a schematic block diagram of the principal part of the self-machine of Example 1. It is a schematic block diagram of the self-machine of Example 2. FIG. 3 is a view showing a schematic configuration part of a second heating means 30. It is the schematic of the image development part of the automatic processor which processes by a serial system using the inkjet head with a narrow nozzle width. It is the schematic when a squeeze coater system is used for a process liquid supply means. FIG. 5 is a schematic view when an impregnation coater method and a gravure coater method are used for the treatment liquid supply means.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Heating means 11 Heating drum 30 Second heating means 31 Heating roller 32 Driving roller P Photosensitive material

Claims (8)

Means for supplying a first liquid containing a developing agent to the silver halide photographic light-sensitive material; means for supplying a second liquid containing an alkali agent to the silver halide photographic light-sensitive material following the first liquid; and It is characterized by having heating means for maintaining the surface temperature of the photosensitive material in the range of 40 to 90 degrees when supplied to the photosensitive material immediately before the means for supplying the contained first solution to the silver halide photographic photosensitive material. Automatic developing machine for silver halide photographic materials. 2. The automatic for silver halide photographic light-sensitive material according to claim 1, further comprising means for supplying a processing solution having bleaching ability for 5 to 20 seconds after the first liquid is supplied to the light-sensitive material. Developing machine. 3. The halogen according to claim 1, further comprising supply means for supplying a supply amount of the first solution and / or the second solution supplied to the photosensitive material in a range of 5 ml to 100 ml per 1 m ^2. Automatic developing machine for silver halide photographic materials. The silver halide photograph according to any one of claims 1 to 3, wherein the surface tension of at least one of the first liquid and the second liquid is in the range of 20 dyne / cm to 45 dyne / cm. Automatic developing machine for photosensitive materials. 5. The automatic for silver halide photographic light-sensitive material according to claim 1, further comprising control means for supplying the second liquid within 4.5 seconds after the supply of the first liquid. Developing machine. 6. The silver halide photograph according to claim 1, wherein the first liquid and the second liquid have a liquid holding container that does not substantially contact each other before being supplied to the photosensitive material. Automatic developing machine for photosensitive materials. The automatic developing machine for silver halide photographic light-sensitive materials according to any one of claims 1 to 6, further comprising means for supplying at least one of the first liquid and the second liquid via a gas phase. . 2. A means for maintaining the surface temperature of the photosensitive material in a range of 40 to 90 degrees while the first and second liquids are supplied to the silver halide photographic light-sensitive material. 8. An automatic developing machine for silver halide photographic light-sensitive materials according to any one of 7 above.

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