JP2003057774A - Method and apparatus for producing photographic sensitive material coating liquid - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a production system adapted to the age of small-lot multi- product production and production of variable products in variable quantities and having a relatively high degree of freedom and to provide a method and apparatus for producing a photographic sensitive material coating liquid by a batch production system easy to operate. SOLUTION: The apparatus for producing a photographic sensitive material coating liquid has a variable scale preparation tank in which the coating liquid is prepared, a stock tank, a unit for measuring physical properties of the coating liquid, a liquid transfer pump and filtering device and a unit for measuring the level of the coating liquid and controls at least (a) an operation for transferring the prepared coating liquid in the stock tank to a buffer tank by a mechanical method such as gravitation, application of pressure or pumping after confirming the fact that the physical properties of the liquid are normal and (b) an operation for starting preparation in the preparation tank according to signals of a device for measuring the level of the liquid in the buffer tank and an operation for starting liquid transfer to feed the coating liquid to a coater.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and apparatus for preparing a coating solution for a photographic light-sensitive material, and more specifically, a part of construction of a production system adapted to the era of a large number of small quantities of silver halide photographic light-sensitive materials and a variety of variables. The present invention relates to a method and an apparatus for producing a coating solution for photographic light-sensitive material.

[0002]

2. Description of the Related Art In order to produce a photographic light-sensitive material, a plurality of different coating liquids are superposed on a plastic film such as triacetyl cellulose (TAC) or polyethylene terephthalate (PET) or a support such as laminated paper. Need to be applied. For example, in the case of a color light-sensitive material, these coating layers are light-sensitive emulsion layers that are sensitive to red, blue, and green light (each has two or three types of high, medium, and low sensitivity), an intermediate layer mainly serving as an optical filter, and a surface layer. It is composed of a protective layer or the like that enhances physical strength. Particularly, in recent color films, a total of 10 or more coating layers are coated. The method of preparing a coating solution for a photographic light-sensitive material can be roughly classified into a continuous solution preparation method and a batch solution preparation method. The continuous liquid preparation method is Japanese Patent Publication No. 52-3158.
No. 2, JP-A-47-18517, JP-A-51.
The method described in Japanese Patent Publication No. 34713/1991, in which chemicals necessary for flowing a reference liquid at a constant flow rate are sequentially added,
Alternatively, it is a method for preparing a coating liquid, which is characterized in that it is added at a constant ratio to the reference liquid at the same time. Such a continuous liquid preparation method has the following merits. The coating liquid has a uniform aging time to stabilize product performance, the number of control points is smaller than in batch production, and mass production is easier. On the other hand, such a continuous liquid preparation system has the following drawbacks. It is not suitable for low-volume, high-mix production because of large loss until steady state, complicated end treatment at the end of production, and cleaning. Prescription that requires reaction waiting time such as reaction and adsorption during preparation. Is not suitable (the versatility of the equipment is poor), the flow rate increases when trying to speed up, the mixing time is insufficient, and the equipment capacity needs to be reviewed.

Further, the batch liquid preparation method is not limited to the production of photographic light-sensitive materials but is a general method, and there are almost no patents for producing photographic light-sensitive materials. The advantages of using such a batch preparation method for the production of a photographic light-sensitive material have the following advantages. It is easy to set the time corresponding to reaction, adsorption, etc., it is possible to reduce the loss at the start, because the cleaning can be done for each block at the time of cleaning, the cleaning time is short. It is easy to take countermeasures such as strengthening stirring when speeding up and shortening the preparation cycle. On the contrary, the batch preparation method has the following disadvantages. The aging time of the coating solution is not constant, the number of operating equipment is large, maintenance is difficult, the number of operating equipment is large, and the equipment cost is high.

[0004] As the market needs increase in a small quantity and in a large variety of products, and in response to speeding up for increasing production efficiency, a production method using a new technique has been developed among batch production methods. JP-A-1-180228 Japanese Unexamined Patent Publication No. Hei 1-103714, Japanese Unexamined Patent Publication No. 64-912218 and the like are disclosed. Such a system is used for small-quantity, high-mix production with 10 layers for a certain product and 16 layers for a certain product.
It is effective for generalization by moving the batch preparation equipment when the number of layers is small and many kinds, and it is effective for increasing the operation efficiency of the equipment, and it is possible to maximize the production efficiency for each kind.

On the other hand, on the other hand, there are problems of equipment failure such as troubles caused by moving the tank, problems of control such as control, and the quality of workers who operate and manage these. It is becoming a difficult subject as it becomes a reality. In addition, the biggest difference between the batch production method for photographic light-sensitive materials and the general batch production method is that multiple (2 to 10 types) liquids must be prepared at the same time. That is, they are dealing with expensive silver compounds, they must be produced in a dark room, etc.

[0006]

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a method and apparatus for preparing a coating solution for a photographic light-sensitive material, which overcomes the above problems. That is, the present invention provides a production system having a relatively high degree of freedom, adapting to the era of small-quantity, large-variety and variable-variety varieties, and is easy to operate in the midst of internationalization of photographic light-sensitive material production bases. A method and an apparatus for preparing a coating solution for a photographic light-sensitive material by a production system.

[0007] In relation to the above problems, in view of the characteristics of the production of various kinds of photographic light-sensitive materials in small quantities and various kinds, a plurality (2 to 10 kinds) of coating solutions having different compositions are simultaneously completed and coating is started. Shorten the time to
Measure the homogenization of aging time. It is necessary to guarantee the quality of each batch, because the whole product will be damaged if any one of a plurality (2 to 10 or more types) becomes abnormal. Minimize waste loss by making the remaining amount of multiple (2-10 types) liquids zero at the end of production, if possible. If the coating is manufactured due to trouble during manufacturing, if the manufacturing is restarted within the maximum aging time of the solution (the time when quality deterioration including photographic performance starts), the aging time of the coating solution will be as high as possible. Rejuvenate at a time when there is no problem, and try to stabilize performance. It is an object of the present invention to provide a method and an apparatus for producing a coating solution for a photographic light-sensitive material, taking into consideration the above.

[0008]

As a result of intensive studies by the present inventors, the above object of the present invention can be achieved by the following constitution. That is, the present invention is as follows. (1) Preparation tank for preparing a coating solution whose scale can be changed, preparation solution stock tank, buffer tank provided for sending the coating solution to the coating process, unit for measuring liquid physical properties arranged in preparation solution stock tank, preparation A liquid transfer pump and a filtering device provided between the liquid stock tank and the buffer tank and a liquid level measuring unit equipped in the buffer tank are provided, and at least (a) the physical properties of the liquid preparation in the liquid stock tank are abnormal. After confirming that there is no such liquid, transfer the liquid to the buffer tank by using a mechanical method such as gravity, pressurization, or a pump. (B) Prepare the preparation tank according to the signal from the device for measuring the liquid level of the buffer tank. Of the photographic light-sensitive material coating liquid, which is characterized by controlling the operation for starting preparation of the coating liquid and the operation for starting liquid transfer to supply the coating liquid to the coater. Method. (2) If some trouble occurs during the manufacturing process and a coating liquid loss occurs, in order to bring the loss at the end of manufacturing of the coating liquid of each layer to the end of coating to as close to zero as possible, The production quantity, the remaining production quantity, and the required preparation amount for each layer are calculated from the raw material information in each tank, replaced with the optimum batch scale, and the subsequent preparation command is issued to control the preparation amount. (1) A method for producing a coating solution for a photographic light-sensitive material as described in (1). (3) Before starting the final batch preparation of the planned production plan, preferably at a stage where preparation of a plurality of batches is left, by using the control method changing function provided as the additional preparation function, the preparation start operation from the buffer tank and / or Or, to issue a command to start liquid transfer, change the liquid level, accelerate the preparation of the next batch, store the necessary coating liquid in the buffer tank by the end of coating, and send the coating liquid of the final batch to the buffer tank. Once the upstream tank manufacturing process is completed, the washing operation is started automatically or at the operator's discretion, and the switching time to the preparation of the next product is controlled.
The method for producing a coating solution for a photographic light-sensitive material as described in (1) or (2) above, which comprises shortening.

(4) A coating solution preparation tank for preparing a coating solution whose scale can be changed, a preparation solution stock tank, a buffer tank provided for sending this coating solution to a coating step,
It is characterized by having a unit for measuring liquid properties arranged in the preparation liquid stock tank, a transfer pump and a filtering device provided between the preparation liquid stock tank and the buffer tank, and a liquid level measurement unit equipped in the buffer tank. Photosensitive material coating liquid manufacturing equipment. (5) The stirrer of the coating liquid preparation tank has a device for controlling the number of revolutions so that the same stirring and mixing efficiency can be obtained in each preparation liquid scale, and the vortex flow generated when the liquid amount is small reaches the stirring blade. In order to prevent bubbles generated by the above, a practical stirring area is widened by a baffle provided on the inner surface of the tank and / or around the stirring blade, to manufacture the photographic light-sensitive material coating solution according to the above (4). apparatus.

The method and apparatus for producing a coating solution for a photographic light-sensitive material of the present invention can minimize the loss of the coating solution generated at the end of production in the production of a small variety of products.
It is possible to minimize the loss at the end of coating, which can cope with troubles in the manufacturing process; by the additional preparation, it is possible to perform pre-cleaning up to the buffer tank and shorten the time to switch to the next product type. .

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION The method and apparatus for producing a coating solution for a photographic light-sensitive material of the present invention will be described in detail below. The system basically consists of a tank for preparing a coating solution for the production of photographic light-sensitive materials, a buffer tank for storing this solution and supplying it to the coating process, and a filter device in between if necessary. A specific method for making it possible to cope with a large number of small quantities and a variety of variable quantities will be described. 1) The number of lines can be adjusted to the maximum number of layers of varieties produced in that plant. (The preparation tank can also be used,
The required number of buffer tanks is maintained.) In the coating process, the required number of liquid transfer systems that make up the product are required, and this liquid transfer system is connected to each buffer tank. This buffer tank should be connected to the preparation tank on a one-to-one basis if possible, but an intermediate layer not containing a silver halide emulsion (of course, a layer containing an emulsion can be prepared with a short preparation time is also possible. Since () has a simple liquid composition and does not require preparation time, it is possible to prepare a plurality of layers in one preparation tank. The preparation tank is
What is necessary for the target coating liquid (emulsion, emulsion, various chemicals, etc.) is added sequentially according to the formulation.

2) Since the preparation tank is compatible with a large number of small quantities and variable quantities, in addition to an ordinary agitator so that the preparation scale can be changed, equipment having a baffle function is provided on the tank wall surface and / or around the agitation blade. And have controllable rotation speed. The preparation tank has a jacket whose temperature can be adjusted to uniformly mix the chemicals added by the stirrer. As the stirring blade, various commercially available stirring blades such as propeller, paddle, jet type and anchor type can be applied, and the stirring flow can be down-flow type or up-flow type. In the present invention, it is indispensable to control the rotation speed of the agitator in order to cope with the multi-product variable quantity production as much as possible, and any method such as an inverter method can be used as long as the rotation speed can be controlled by a computer. However, just changing the rotation speed creates a vortex in the tank, and this vortex reaches the blades to create a large amount of bubbles, so a baffle may be provided on the tank wall, the tank bottom, etc., and / or , Japanese Patent Laid-Open No. 4-114726 and Japanese Utility Model Laid-Open No. 4-91726 in which a baffle is provided around the stirring blade.
This can be achieved by using the equipment described in Japanese Patent Laid-Open Publication No. 2003-242242, which makes it possible to widen the practical stirring area several times as compared with the conventional stirring.

3) As a method of confirming the physical properties of the prepared liquid and supplying the coating liquid to the buffer tank for supplying the coating liquid having no problem, the measurement for performing the physical property measurement for evaluating the performance of the prepared tank Equipment is equipped, or the prepared solution is transferred to a stock tank for measuring physical properties, physical properties are determined here, and only a liquid having no problem is supplied to the buffer tank. A photographic light-sensitive material has a photosensitive layer formed by simultaneously collecting a plurality of coating solutions having different compositions in a coater and applying the coating solutions at once or a plurality of times. If even one of these coating liquids having abnormal physical properties, photographic performance, etc. is coated, it will not be viable as a product. Therefore, it is necessary to measure various physical properties on a batch-by-batch basis in which the coating liquid is prepared and judge whether the performance is acceptable or not. As a method for this purpose, measurement of surface tension, viscosity, specific gravity, pH, conductivity, spectroscopic spectrum, liquid sensitography and the like are performed.
During this measurement, the coating solution must wait for transfer to the buffer tank, and this waiting for measurement can be performed in the preparation tank or after transfer to the stock tank. The merit of the method of measuring the physical properties after transferring the liquid to the stock tank is that the preparation cycle time is shortened, and the demerit is that the equipment cost is increased, but either method can be applied.

4) The buffer tank is equipped with a level meter and monitors the level. When the liquid level reaches a predetermined value, a preparation request for the next batch is issued to the preparation tank and the preparation tank is prepared via the control device. To start. Before the start of coating, start the coating with a predetermined amount of each coating solution used in the product in the buffer tank, but after the start of coating,
To issue a command to adjust the next batch of each coating solution,
It is necessary to know the remaining amount of liquid in the buffer tank, and various methods such as differential piezoelectric transmitter, ultrasonic level meter, follow-up type level meter, and load cell are known as level meters. Any method can be adopted. Using such a level meter, when the liquid amount is reduced to a preset predetermined level, this information is transmitted to the control device, and the control device issues a preparation command to the preparation tank according to the preset logic. There is also a level meter in the preparation tank or the stock tank, and a transferable command is issued to the coating liquid that has been confirmed to have no physical properties abnormalities, and this information is sent to the control device.
Liquid transfer is started according to a command from the control device.

5) An optimum quantity calculation function is provided during batch preparation, and the quantity necessary for the rest of the production is calculated from the planned quantity planned and the progress of manufacturing, and the optimum batch is prepared according to the logic created in the control computer in advance. By calculating the scale and manufacturing this scale, the loss of the preparation liquid will be as close to zero as possible at the end of the manufacturing. The required manufacturing scale (coating amount + normal loss amount) because the preparation scale was made variable by means of widening the stirring range of the preparation tank.
Calculate the optimum preparation scale and the required number of preparation batches for the production of varieties from Also, if abnormalities are prevented or physical properties are abolished during manufacturing, the remaining production plan and the remaining amount of the preparation tank, buffer tank, etc. are calculated, the required amount after that is calculated, and the optimum preparation scale is calculated again. For production at the optimum batch scale.

6) Reduction is performed so that a plurality of coating liquids have the minimum loss at the end of the production by performing the drive-in preparation at the end of the production (calculations such that each coating liquid becomes zero at the same time at the end of the production). ) A suitable time before the end of production by the batch production system, in particular, before the start of the final batch preparation, the required level of preparation instruction of the buffer tank, and / or
The required level of liquid transfer is set to several hours, which is higher than the level for steady production, and the required amount of liquid is stored in the buffer tank until the end of production, until the preparation tank that has been prepared or the stock tank that is provided for physical property measurement, etc. The switching time is shortened by starting or ending the cleaning before the end of coating and cleaning the buffer tank to the coater at the end of the manufacturing.

The photographic light-sensitive material, which is various chemicals to be dissolved and prepared by using the method and apparatus for producing the coating solution for the photographic light-sensitive material of the present invention, will be described. The photographic light-sensitive material may have at least one light-sensitive layer provided on the support. As a typical example, a silver halide photographic light-sensitive material having on a support at least one light-sensitive layer composed of a plurality of silver halide emulsion layers having substantially the same color sensitivity but different sensitivities. Is. The photosensitive layer is a unit photosensitive layer having a color sensitivity to any of blue light, green light, and red light,
In the multilayer silver halide color photographic light-sensitive material, the unit light-sensitive layers are generally arranged in the order of the red-sensitive layer, the green-sensitive layer and the blue-sensitive layer from the support side. But,
Depending on the purpose, the order of installation may be reversed, or the order of installation may be such that different photosensitive layers are sandwiched between the same color-sensitive layers. A non-photosensitive layer may be provided between the above-described silver halide photosensitive layers and as the uppermost layer and the lowermost layer. These may contain a coupler, a DIR compound, a color mixing inhibitor, etc. described later. A plurality of silver halide emulsion layers constituting each unit photosensitive layer is DE 1,121,470 or GB 923,045.
It is preferable to arrange the two layers of the high-sensitivity emulsion layer and the low-sensitivity emulsion layer so that the sensitivities are lowered toward the support as described above. Further, JP-A-57-112751,
62-200350, 62-206541, 62-20654
A low-sensitivity emulsion layer may be provided on the side farther from the support, and a high-sensitivity emulsion layer may be provided on the side closer to the support, as described in JP-A-3.

As a specific example, from the side farthest from the support,
Low sensitivity blue photosensitive layer (BL) / High sensitivity blue photosensitive layer (BH) / High sensitivity green photosensitive layer (GH) / Low sensitivity green photosensitive layer (GL) / High sensitivity red photosensitive layer (RH) / Low sensitivity red photosensitive layer (RL) order, or BH / BL / GL / GH / RH / RL order, or BH / BL / GH /
It can be installed in the order of GL / RL / RH. In addition,
As described in JP-A-55-34932, the blue-sensitive layer / GH / RH / GL / RL may be arranged in this order from the side farthest from the support. Also, JP-A-56-25738 and 62-6
As described in Japanese Patent No. 3936, the blue-sensitive layer / GL / RL / GH / RH may be arranged in this order from the side farthest from the support. Further, as described in JP-B-49-15495, the upper layer is a silver halide emulsion layer having the highest sensitivity,
The middle layer is a silver halide emulsion layer having a lower photosensitivity, and the lower layer is a silver halide emulsion layer having a lower photosensitivity than the middle layer. The photosensitivity is gradually reduced toward the support. An arrangement composed of three layers can be mentioned. Even when it is composed of three layers having different sensitivities, as described in JP-A-59-202464, a medium-sensitivity emulsion layer from the side distant from the support in the same color-sensitive layer. / High-speed emulsion layer / low-speed emulsion layer may be arranged in this order. In addition, the layers may be arranged in the order of high-speed emulsion layer / low-speed emulsion layer / medium-speed emulsion layer, or low-speed emulsion layer / medium-speed emulsion layer / high-speed emulsion layer. Also, in the case of four or more layers, the arrangement may be changed as described above. USP 4,663,271, USP 4,705,744, USP 4,707,43 to improve color reproducibility
6, mainly using a donor layer (CL) having a multi-layer effect having a spectral sensitivity distribution different from that of the main photosensitive layers such as BL, GL, and RL described in JP-A-62-160448 and 63-89850. It is preferably arranged adjacent to or in proximity to the photosensitive layer.

The preferred silver halide used in the photographic light-sensitive material is silver iodobromide, silver iodochloride, or silver iodochlorobromide containing about 30 mol% or less of silver iodide. Particularly preferred is silver iodobromide or silver iodochlorobromide containing from about 2 mol% to about 10 mol% silver iodide. The silver halide grains in a photographic emulsion are those having regular crystals such as cubes, octahedra and tetradecahedrons, those having irregular crystal shapes such as spheres and plates, twin planes, etc. It may have a crystal defect of, or a composite form thereof. The grain size of silver halide may be fine grains of about 0.2 μm or less or large grains having a projected area diameter of up to about 10 μm, and may be a polydisperse emulsion or a monodisperse emulsion. The silver halide photographic emulsion is, for example, Research Disclosure (hereinafter, R
No.17643 (December 1978), pp. 22-23, "I.
Emulsion preparation and types ", and No. 18716 (November, 1979), 648, No. 307105 (19).
1989, 863-865, and Graphide, Physics and Chemistry of Photography, published by Paul Montel (P.Glafkides, Chi.
mie et Phisique Photographiques, Paul Montel, 196
7), "Photoemulsion Chemistry" by Duffin, published by Focal Press (GF Duffin, Photographic Emulsion Chemistr
y, Focal Press, 1966), "Production and Coating of Photographic Emulsions" by Zelikmann et al., published by Focal Press (VL Zelikman,
et al., Making and Coating Photographic Emulsion, F
Ocal Press, 1964) and the like. The monodisperse emulsions described in USP 3,574,628, 3,655,394 and GB 1,413,748 are also preferable. Further, tabular grains having an aspect ratio of about 3 or more can be used in the present invention. Tabular grains are described in Gutoff, Photographic Science and Engineering,
Volume 14, Pages 248-257 (1970); US 4,434,226, 4,41.
4,310, 4,433,048, 4,439,520 and GB 2,112,15
It can be easily prepared by the method described in 7. The crystal structure may be uniform, may have different halogen compositions inside and outside, or may have a layered structure. Silver halides having different compositions may be joined by epitaxial joining, and may be joined with a compound other than silver halide such as silver rhodanide and lead oxide. Also, a mixture of particles having various crystal forms may be used.

The above-mentioned emulsion may be either a surface latent image type in which a latent image is mainly formed on the surface, an internal latent image type in which a latent image is formed, or a type having a latent image both on the surface and inside. Must be a type of emulsion. Among the internal latent image type emulsions, core / shell type internal latent image type emulsions described in JP-A-63-264740 may be used, and the preparation method thereof is described in JP-A-59-133542. . The thickness of the shell of this emulsion varies depending on the development process etc., but is 3-40 nm.
Is preferable, and 5 to 20 nm is particularly preferable. As the silver halide emulsion, those which are physically ripened, chemically ripened and spectrally sensitized are usually used. Additives used in such a process are described in RD No. 17643, RD No. 18716 and RD No. 307105, and the corresponding portions are summarized in the table below. For the light-sensitive material, two or more kinds of emulsions having different characteristics of at least one of the grain size, grain size distribution, halogen composition, grain shape, and sensitivity of the photosensitive silver halide emulsion are mixed and used in the same layer. be able to. US Pat. No. 4,082,553, the surface of which is covered with silver halide grains, US Pat.
98, JP-A-59-214852, wherein the internally fogged silver halide grains and colloidal silver are applied to a photosensitive silver halide emulsion layer and / or a substantially non-photosensitive hydrophilic colloid layer. Preferably. The fogged silver halide grain inside or on the surface means a silver halide grain which enables uniform (non-imagewise) development regardless of the unexposed area and exposed area of the light-sensitive material. , Its preparation method is described in US Pat. No. 4,626,498 and JP-A-59-214852. The silver halide forming the inner core of a core / shell type silver halide grain having a fogged inside may have a different halogen composition. As the silver halide whose inside or surface is fogged, any of silver chloride, silver chlorobromide, silver iodobromide and silver chloroiodobromide can be used.
The average grain size of these fogged silver halide grains is preferably 0.01 to 0.75 .mu.m, more preferably 0.05 to 0.6 .mu.m. The grain shape may be regular grain or polydisperse emulsion, but monodispersity (at least 95% of the weight or number of silver halide grains has a grain size within ± 40% of the average grain size). It is preferable that

It is also preferable to use non-photosensitive fine grain silver halide. The non-photosensitive fine grain silver halide is a fine grain of silver halide which is not exposed to light during imagewise exposure for obtaining a dye image and is not substantially developed in the development process, and it is preferable that it is not fogged in advance. . The fine grain silver halide has a silver bromide content of 0 to 100 mol%, and may optionally contain silver chloride and / or silver iodide. Preferably silver iodide
0.5 to 10 mol% is contained. Fine grain silver halide has an average grain size (average value of circle equivalent diameter of projected area) of 0.
01 to 0.5 μm is preferable, and 0.02 to 0.2 μm is more preferable. The fine grain silver halide can be prepared by a method similar to that for ordinary photosensitive silver halide. The surface of the silver halide grain does not need to be optically sensitized nor spectrally sensitized. However, prior to adding this to the coating liquid, it is preferable to add a known stabilizer such as a triazole-based, azaindene-based, benzothiazolium-based, mercapto-based compound or zinc compound in advance. Colloidal silver can be contained in the fine silver halide grain-containing layer. Coated silver amount of the light-sensitive material of the present invention is preferably 6.0 g / m ² or less, 4.5 g / m ² or less is most preferred.

Photographic additives are also listed in the RD and the relevant locations are indicated in the table below. (Types of additives) (RD17643) (RD18716) (RD307105) 1. Chemical sensitizer page 23 page 648 page right column page 866 2. Sensitivity enhancer 648 Page right column 3. Spectral sensitizer, pages 23 to 24, page 648, right column, page 866 to 868, supersensitizer, page 649, right column, 4. Whitening agent Page 24 Page 647 Page right column Page 868 5. Light absorber, pages 25 to 26, page 649, right column, page 873, filter to page 650, left column, dye, ultraviolet absorber 6. Binder 26 pages 651 pages left column 873 to 874 pages 7. Plasticizer, page 27, page 650, right column, page 876, lubricant 8. Coating aid, pages 26 to 27, page 650, right column, pages 875 to 876, surfactant 9. Static 27 pages 650 pages right column 876-877 pages Inhibitor 10. Matting agent pp. 878-879.

Although various dye-forming couplers can be used in the light-sensitive material, the following couplers are particularly preferable. Yellow couplers: couplers represented by formulas (I) and (II) of EP 502,424A; couplers represented by formulas (1) and (2) of EP 513,496A (particularly Y-28 on page 18); EP 568,037A Claim 1
A coupler represented by the formula (I) in US Pat. No. 5,066,576, column 1, lines 45 to 55; a coupler represented by the formula (I) in JP-A-4-274425; Couplers; couplers according to claim 1 of EP 498,381A1 on page 40 (especially D-35 on page 18); formulas on page 4 of EP 447,969A1
A coupler represented by (Y) (especially Y-1 (page 17), Y-54 (41
)); US 4,476,219, column 7, lines 36-58, formulas (II)-(I
V) couplers (especially II-17, 19 (column 17), II
-24 (column 19)).

Magenta coupler; JP-A-3-39737
(L-57 (bottom right of page 11), L-68 (bottom right of page 12), L-77 (bottom right of page 13);
EP 456,257, A-4 -63 (page 134), A-4 -73, -75 (page 139);
EP 486,965 M-4, -6 (page 26), M-7 (page 27); EP 571,959A
M-45 (page 19); JP-A-5-204106 (M-1) (page 6); JP-A-4-362631, paragraph 0237, M-22. Cyan coupler: CX-1,3,4,5,11,12,14,15 (1 of JP-A-4-204843
4 to 16); JP-A-4-43345, C-7, 10 (page 35), 3
4,35 (page 37), (I-1), (I-17) (pages 42 to 43); JP-A-6-67385
A coupler represented by the general formula (Ia) or (Ib) of claim 1 of Japanese Unexamined Patent Publication. Polymer coupler: P-1, P-5 (11 in JP-A-2-44345)
page). Examples of couplers in which the coloring dye has an appropriate diffusibility include US 4,366,237, GB 2,125,570, EP 96,873B, DE 3,2
Those described in 34,533 are preferable. The coupler for correcting the unwanted absorption of the color forming dye is a yellow-colored cyan coupler represented by the formulas (CI), (CII), (CIII) and (CIV) described on page 5 of EP 456,257A1 (especially on page 84). YC-86), the yellow colored magenta coupler ExM-7 (page 202) described in the EP,
EX-1 (page 249), EX-7 (page 251), magenta colored cyan coupler CC-9 (column 8), CC described in US 4,833,069
-13 (column 10), US 4,837,136 (2) (column 8), WO92 / 1
The colorless masking couplers of formula (A) of claim 1 of 1575 (in particular the exemplified compounds on pages 36 to 45) are preferred.

Examples of the coupler releasing a photographically useful group include the following. Development inhibitor releasing compound:
Compounds represented by formulas (I), (II), (III) and (IV) described on page 11 of EP 378, 236A1 (particularly T-101 (page 30), T-104 (page 31), T-11
3 (36 pages), T-131 (45 pages), T-144 (51 pages), T-158 (58 pages)), EP 4
Compounds represented by formula (I) on page 7 of 36,938A2 (especially D-49 (page 51)), compounds represented by formula (1) of EP 568,037A (especially (23) (page 11)), Compounds represented by formulas (I), (II) and (III) described on pages 5 to 6 of EP 440,195A2 (especially on page 29)
I- (1)); Bleach accelerator releasing compounds: compounds represented by formulas (I) and (I ') on page 5 of EP 310,125A2 (particularly (60) and (6 on page 61)
1)) and a compound represented by formula (I) in claim 1 of JP-A-6-59411 (particularly (7) (page 7); Ligand releasing compound: LIG-X described in claim 1 of US 4,555,478 Compounds represented (especially compounds on lines 21 to 41 of column 12); Leuco dye releasing compounds: compounds 1 to 6 of columns 3 to 8 of US 4,749,641; fluorescent dye releasing compounds: COUP-DYE of claim 1 of US 4,774,181 Compounds represented (especially columns 7-10)
Compounds 1 to 11); development accelerator or fogging agent releasing compounds: compounds represented by formulas (1), (2) and (3) of column 3, US Pat. No. 4,656,123 (particularly (I-22) of column 25) and EP 450,6
ExZK-2 on page 75, lines 36-38 of 37A2; Compounds that release a dye group only upon leaving: a compound of formula (I) of claim 1 of US 4,857,447 (especially Y- of columns 25-36). 1 ~
Y-19).

As the additives other than the coupler, the following are preferable. Dispersion medium for oil-soluble organic compound: JP-A-62-2
No. 15272, P-3,5,16,19,25,30,42,49,54,55,66,81,8
5,86,93 (pages 140 to 144); Latex for impregnation of oil-soluble organic compounds: Latex described in US 4,199,363; Oxidizing agent scavenger: Formula (I) in columns 2, lines 54 to 62 of US 4,978,606. Compounds represented by (especially I-, (1), (2), (6), (12)
(Columns 4-5), US 4,923,787 column 2, lines 5-10 (especially compound 1 (column 3); stain inhibitor: EP
298321A, page 4, lines 30-33, formulas (I)-(III), especially I-47,72, I
II-1,27 (pages 24-48); Anti-fading agent: A-6 of EP 298321A,
7,20,21,23,24,25,26,30,37,40,42,48,63,90,92,94,164
(Pages 69-118), US 5,122,444, columns 25-38, II-1 to II.
I-23, especially III-10, EP 471347A, pages 8-12, I-1 to III-
4, especially II-2, US 5,139,931 columns 32-40 A-1 ~ 48,
In particular A-39,42; Materials that reduce the amount of color-enhancing agents or color-mixing inhibitors used: I-1 to II-15, EP 411324A, pages 5 to 24,
Especially I-46; Formalin Scavenger: EP 477932A 24
SCV-1 to 28 on page 29, especially SCV-8; Hardener: JP-A 1-21
Compounds represented by formulas (VII) to (XII) in columns 13 to 23 of H-1,4,6,8,14, US 4,618,573 on page 17 of 4845 (H-1 to
54), compounds (H-1 to 76) represented by the formula (6) on the lower right side of page 8 of JP-A-2-214852, particularly compounds described in claim 1 of H-14, US 3,325,287; development inhibitors. Precursor: JP Sho
62-168139, P-24,37,39 (pages 6-7); US 5,019,49
2 a compound as claimed in claim 1, especially column 7, 28,29;
Preservatives, fungicides: US 4,923,790 columns 3 to 15 I-1
~ III-43, especially II-1,9,10,18, III-25; Stabilizers, antifoggants: US 4,923,793, columns 6 to 16 I-1 to (14), especially I-1,60, (2), (13), US 4,952,483, columns 25-32, compounds 1-65, especially 36: chemical sensitizer: triphenylphosphine selenide, compound 50 of JP-A-5-40324; dye: JP-A-3 -156450, pages 15-18, a-1 to b-20, especially a-1,12,18,27,35,36, b-5, 27 to 29, V-1 to 23, especially
V-1, EP 445627A, FI-1 to F-II-43 on pages 33 to 55, especially FI
-11, F-II-8, EP 457153A, pages 17-28, III-1 to 36, especially III-1,3, WO 88/04794, 8 to 26, Dye-1 to 124, microcrystalline dispersion, Compounds 1 to 22 of EP 319999A, pages 6 to 11, in particular compound 1, compounds D-1 to 87 (pages 3 to 28) represented by formulas (1) to (3) of EP 519306A, formula (I of US Pat. No. 4,268,622) ) Compounds 1 to 22 (columns 3 to 10), compounds (1) to (31) (columns 2 to 9) represented by the formula (I) of US 4,923,788;
UV absorber: Compounds (18b) to (18r), 101 to 427 (pages 6 to 9) represented by formula (1) of JP-A-46-3335, EP 520938A
Compounds (3) to (66) (pages 10 to 44) represented by the formula (I) and compounds HBT-1 to 10 (page 14), EP 5 represented by the formula (III)
Compounds (1) to (31) represented by the formula (1) of 21823A (columns 2 to 9).

It can be applied to various color light-sensitive materials such as color negative films for general use or movies, color reversal films for slides or televisions, color papers, color positive films and color reversal papers. In addition, Japanese Patent Publication No.
It is suitable for the film unit with a lens described in Japanese Patent No. 39784.

[0028]

Embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a schematic view showing an apparatus 1 to which the method for producing a coating solution for a photographic light-sensitive material according to the present invention is applied. The apparatus 1 for producing a coating solution for a photographic light-sensitive material of the present invention comprises a step (not shown) of preparing various emulsions, emulsions, chemicals and the like used in a coating solution for a photographic light-sensitive material, and a measuring step (a step of measuring this solution). (Not shown), a preparation tank 2 for adding a plurality of coating liquids to be used in a photographic light-sensitive material, and a tank attached to the preparation tank 2 or next to the preparation tank 2. The stock tank 3 provided in the above is equipped with a physical property measuring device 6 equipped with various physical property measuring devices, and a buffer tank 5 for storing each coating solution of which quality is guaranteed. Transfer means (transfer pump 7) for sending the respective liquids in the middle of the liquid transfer pipe 9 until reaching the position, and a filtering device 4 for removing dust and the like contained in the liquid prepared as necessary. And has a preparation tank 2
The jacket 10 and the stirrer 8 for controlling the temperature are
And a tank to expand the effective stirring and mixing area, or
The buffer tank 5 is composed of a baffle provided around the stirring blades and a control device for controlling the stirring rotation speed. The buffer tank 5 has a heat retaining jacket 11 for keeping the temperature constant and a stirrer 12 for homogenizing the liquid as necessary. And a level measuring device 13 for measuring the liquid level, and a control device for issuing a preparation command to the preparation tank 2 or a liquid transfer command in response to a signal from the level measuring device 13. When issuing a preparation command from the product to the preparation tank, the pre-specified preparation amount, the progress of manufacturing up to now, and the necessary amount for continuing the remaining production are calculated, and the optimum batch preparation scale and the required number of batches are calculated. It has a preparation control device characterized by instructing the optimum preparation scale so that the loss at the end of production will be as close to zero as possible for all layers at the same time. By changing the preparation required level and / or the liquid transfer required level of the buffer tank 5 by issuing a "preparation preparation command" to the buffer tank 5, the buffer tank 5 is secured in advance with the required amount of liquid before the application is stopped. 2 or /
And when the transfer of the final batch from the stock tank 3 to the buffer tank 5 is completed, the buffer tank 5
The cleaning that has just been completed is immediately preceded.

[0029]

As described above, the method and apparatus for producing a coating solution for a photographic light-sensitive material of the present invention can minimize the loss of the coating solution that has occurred at the end of production in the production of a small variety of products. Yes; it is possible to minimize the loss at the end of coating, which can cope with problems during manufacturing.
By "preparation-in-preparation", it is possible to perform pre-cleaning up to the buffer tank and shorten the switching time to the next product.

[Brief description of drawings]

FIG. 1 is a schematic diagram of an apparatus showing one embodiment of the method of the present invention.

[Explanation of symbols]

1 Coating liquid manufacturing equipment 2 Coating liquid preparation tank 3 Coating liquid stock tank 4 Filtration device 5 buffer tanks 6 Physical property measuring device 7 Transfer pump 8 stirrer 9 Transfer pipe 10 jacket 11 Insulated jacket 12 Stirrer 13 Liquid level measuring device

Claims (5)

[Claims] 1. A preparation tank for preparing a coating solution whose scale can be changed, a preparation liquid stock tank, a buffer tank provided for sending the coating solution to a coating process, and a unit for measuring liquid properties arranged in the preparation liquid stock tank. , A liquid transfer pump and a filtration device provided between the preparation liquid stock tank and the buffer tank, and a liquid level measuring unit equipped in the buffer tank, and at least (a) the physical properties of the preparation liquid in the preparation liquid stock tank are After confirming that there is no abnormality, transfer the liquid to the buffer tank by using a mechanical method such as gravity, pressurization, or a pump, (b) follow the signal from the device for measuring the liquid level in the buffer tank, Photosensitive material coating characterized by controlling the operation of starting the preparation of the preparation tank and the operation of starting liquid transfer to supply the coating liquid to the coater Liquid manufacturing method. 2. When a trouble occurs during the manufacturing process and a coating liquid loss occurs, the production plan and the current plan are set in order to make the coating liquid loss of each layer until the coating end as close to zero as possible. Calculate the required amount of preparation for each layer from the production quantity up to and the remaining production quantity, and the raw material information in each tank,
The method for producing a coating solution for a photographic light-sensitive material according to claim 1, wherein the optimum batch scale is replaced, and a subsequent preparation command is issued to control the preparation amount. 3. A preparation start operation from a buffer tank by using a control method changing function provided as a step-in preparation function, preferably at the stage where preparation of a plurality of batches is left before the start of final batch preparation of a planned production plan. And / or to issue a command to start liquid transfer, change the liquid level, accelerate the start of preparation for the next batch, store the necessary coating liquid in the buffer tank by the end of coating, and store the final batch coating liquid in the buffer tank. When it is sent, the manufacturing end washing operation of the upstream process up to the buffer tank is started automatically or at the operator's discretion, and the switching time to the preparation of the next product type is controlled and shortened. 1. A method for producing a coating solution for a photographic light-sensitive material according to 1 or 2. 4. A coating solution preparation tank for preparing a coating solution whose scale can be changed, a preparation solution stock tank, a buffer tank provided for sending this coating solution to a coating process, and a liquid property arranged in the preparation solution stock tank. Apparatus for producing a coating liquid for a photographic light-sensitive material, which comprises a unit for measuring a liquid, a transfer pump and a filtering device provided between a stock tank for a preparation liquid and a buffer tank, and a unit for measuring a liquid level equipped in the buffer tank. . 5. A device for controlling the number of revolutions of the stirrer of the coating liquid preparation tank so that the same stirring and mixing efficiency can be obtained in each preparation liquid scale, and a vortex flow generated when the liquid amount is small is a stirring blade. The photographic photosensitive material coating solution according to claim 4, wherein a practical stirring area is widened by a baffle provided on the inner surface of the tank or / and around the stirring blades in order to prevent bubbles from reaching the surface. Manufacturing equipment.