JPH0895182A - Silver halide photographic sensitive material, photographing material and processing method for same - Google Patents

Abstract

PURPOSE: To obtain a silver halide photographic sensitive material having high sensitivity, ensuring high image quality, excellent in rapid processability and excellent also in preservability and resistance to variation in processing and to provide a processing method for the sensitive material. CONSTITUTION: This silver halide photographic sensitive material has silver halide emulsion layers on both sides of the transparent substrate. The amt. of silver in the emulsion layers is <=1.8g/m<2> per one side of the substrate. Flat platy silver halide particles account for >=50% of the total projection area of silver halide particles contained in the emulsion layers, each principal plane of the flat platy silver halide particles is (100) face in which the ratio between adjacent sides is <10 and each of the flat platy silver halide particles has an aspect ratio of >=2 and contains silver iodide and >=50mol% silver chloride.

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 containing tabular silver halide grains, particularly a medical silver halide photographic light-sensitive material, and a processing method for processing the light-sensitive material.

[0002]

2. Description of the Related Art In recent years, with regard to the development processing of silver halide photographic light-sensitive materials, it has been increasingly desired to reduce the processing time and the processing waste liquid. For example, in the medical field, regular medical examinations, widespread use of medical checkups, and inspections including general medical examinations have increased sharply, which has led to an increase in the number of X-ray photographs taken, speeding up the development process after photographing, and processing waste liquid. The demand for further reduction is increasing more and more.

However, in order to speed up the processing, it is necessary to shorten the processing time of each processing step such as developing, fixing, washing with water, and drying, and the load on each step increases. For example, if the developing time is simply shortened, the image density of the conventional photosensitive material is lowered, that is, the sensitivity is lowered and the gradation is deteriorated. Further, if the fixing time is shortened, the fixing of silver halide becomes incomplete, which causes deterioration of image quality. Therefore, in order to solve such a problem, it is necessary to accelerate the developing speed and the fixing speed.

In order to accelerate the developing speed and fixing speed,
It is preferable to reduce the silver iodide content of the silver halide grains. However, it is known that when the average silver iodide content is lowered, the intrinsic sensitivity of silver halide is lowered. It is also known that when the silver iodide content on the surface of silver halide is lowered, the adsorptivity of the spectral sensitizing dye is deteriorated, the spectral sensitivity is lowered, and the pressure characteristics are sometimes deteriorated. Further, it is also known that when the silver iodide content inside the silver halide is lowered, the pressure characteristics may be deteriorated.

Therefore, development of a technique containing silver iodide and accelerating the developing speed and the fixing speed is desired. It is known that it is preferable to add silver chloride to silver halide grains in order to accelerate the developing speed and the fixing speed. However, the inclusion of silver chloride causes a great deal of desensitization, and there is a problem that the sensitivity and γ vary greatly during the development process, making it extremely difficult to put into practical use.

By the way, in recent years, many techniques for improving sensitivity and image quality using tabular silver halide grains have been disclosed, for example, JP-A Nos. 58-111935 and 58-58.
111936, 58-11937, 58-1
No. 13927, No. 59-99433 and the like.

When these tabular silver halide grains are compared with so-called normal crystal silver halide grains such as hexahedron and octahedron, since the surface area is large in the same volume, the adsorption amount of the sensitizing dye on the grain surface is increased. This is possible, and as a result, there is an advantage that high sensitivity can be achieved.

Further, JP-A-63-92942 discloses a technique of providing a core having a high silver iodide content inside a tabular silver halide grain, and JP-A-63-151618 discloses a hexagonal tabular silver halide grain. Is disclosed, and the effect of increasing the sensitivity is shown.

In addition to this, JP-A-63-106746,
JP-A-1-183644 and JP-A-1-279237 disclose techniques relating to the composition distribution of tabular silver halide grains. Also, JP-A-5-281640 and 5
No. 313327, No. 6-19028 (100)
Although the technology of tabular silver halide grains having a plane as the main plane is also disclosed, these are all about grains having a high silver iodide content or silver iodobromide grains aiming at high sensitivity and high image quality. No. 5,697,049, which does not describe grains having a high silver chloride content.

Further, US Pat. No. 5,320,938 discloses silver chloride-containing tabular grains having a (100) plane, which describes effects such as sensitization in color light-sensitive materials. No mention is made of the suitability for rapid processing of black and white development.

Regarding the tabular grains containing silver chloride, (1
Some of tabular grains having a (11) plane as a main plane have been disclosed.
1) Since the surface is formed, the additive has a great adverse effect on the photographic performance, and further breakthrough is required for practical use.

[0012]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a silver halide photographic light-sensitive material having high sensitivity, good suitability for rapid processing, excellent storability, and processing variability, and a processing method thereof. .

Further, the present invention is to provide a photographic material in which a silver halide photographic light-sensitive material having such properties and a radiation intensifying screen are combined.

[0014]

The above object of the present invention can be achieved by the following constitutions.

(1) In a silver halide photographic light-sensitive material having a silver halide emulsion layer on both sides of a transparent support, the amount of silver in the silver halide emulsion layer is 1.8 g per one side of the support.
/ M ² or less, and 50% or more of the total projected area of the silver halide grains contained in the silver halide emulsion layer is tabular silver halide grains. The main plane is a (100) plane with an adjacent side ratio of less than 10, the aspect ratio of the silver halide grains on the plate is 2 or more, and the tabular silver halide grains contain silver iodide and at least A silver halide photographic light-sensitive material containing 50 mol% or more of silver chloride.

(2) A silver halide photographic light-sensitive material as described in the item (1), wherein the silver halide photographic light-sensitive material contains a dye.

(3) A silver halide photographic light-sensitive material as described in the above item (1), characterized in that the silver halide photographic light-sensitive material contains a dye which flows out and / or a color which is decolorized during the development process.

(4) In a silver halide photographic light-sensitive material having a silver halide emulsion layer on both sides of a transparent support, the amount of silver in the silver halide emulsion layer is 1.8 g per one side of the support.
/ M ² or less, and 50% or more of the total projected area of the silver halide grains contained in the silver halide emulsion layer is tabular silver halide grains. The main plane is a (100) plane with an adjacent side ratio of less than 10, the aspect ratio of the silver halide grains on the plate is 2 or more, and the tabular silver halide grains contain silver iodide and at least A silver halide photographic light-sensitive material containing 50 mol% or more of silver chloride, and a phosphor layer containing a phosphor and a binder on a support, and the filling rate of the phosphor in the phosphor layer is 68%. Above, and the thickness of the phosphor is 120μ
A photographic material comprising a combination of a silver halide photographic light-sensitive material and a radiation sensitizing screen, which is photographed in combination with a set of radiation sensitizing screens of m or more and 250 μm or less.

(5) In a silver halide photographic light-sensitive material having a silver halide emulsion layer on one side of a transparent support, the silver amount in the silver halide emulsion layer is 3.6 g / m ² or less, and 50% or more of the total projected area of the silver halide grains contained in the silver halide emulsion layer are tabular silver halide grains, and the main plane of the tabular silver halide grains has an adjacent edge ratio of less than 10 ( 100) face, the aspect ratio of the silver halide grains on the flat plate is 2 or more, and the flat silver halide grains contain silver iodide and at least 50 mol% or more of silver chloride therein. A silver halide photographic light-sensitive material characterized by the above.

(6) A method for processing a silver halide photographic light-sensitive material, which comprises processing the silver halide photographic light-sensitive material described in the above item (1) for a total processing time of 15 to 90 seconds.

(7) A method for processing a silver halide photographic light-sensitive material, which comprises processing the silver halide photographic light-sensitive material described in the above item (5) for a total processing time of 15 to 90 seconds.

(8) In a silver halide photographic light-sensitive material having a silver halide emulsion layer on both sides of a transparent support, the amount of silver in the silver halide emulsion layer is 1.5 g per one side of the support.
/ M ² or less, and 50% or more of the total projected area of the silver halide grains contained in the silver halide emulsion layer is tabular silver halide grains. The main plane is a (100) plane with an adjacent side ratio of less than 10, the aspect ratio of the silver halide grains on the plate is 2 or more, and the tabular silver halide grains contain silver iodide and at least Containing 50 mol% or more of silver chloride, and at least one of the tabular silver halide grains.
A silver halide photographic light-sensitive material having a silver iodide and / or silver bromide-rich region in the vicinity of the apex or the surface thereof.

(9) A silver halide photographic light-sensitive material as described in the above item (8), wherein the silver halide photographic light-sensitive material contains a dye.

(10) A silver halide photographic light-sensitive material as described in the above item (8), characterized in that the silver halide photographic light-sensitive material contains a dye which flows out and / or a color which is decolorized during the development process.

(11) Silver halide on both sides of the transparent support
In a silver halide photographic light-sensitive material having an emulsion layer, the
The amount of silver in the silver halide emulsion layer is 1.5 per side of the support.
g / m ²Below, and in the silver halide emulsion layer
50% or more of the total projected area of silver halide grains contained in
Is a tabular silver halide grain, and the tabular halogen
The main plane of the silver halide grain is the (100) plane where the ratio of adjacent sides is less than 10.
And the aspect ratio of the silver halide grains on the flat plate is 2 or more.
Above, and the tabular silver halide grains are
Contains silver iodide and at least 50 mol% silver chloride
And at least one position of the tabular silver halide grain
Of silver iodide and / or silver bromide near the top or near the surface of
Silver halide photographic light-sensitive material having a region and on a support
Having a phosphor layer containing a phosphor and a binder, in the phosphor layer
The filling factor of the phosphor in the case is 68% or more, and the thickness of the phosphor is
Radiation sensitization with a size of 120 μm or more and 250 μm or less
Characterized by combining with a set of screens for shooting
Silver halide photographic material and radiation-sensitized screen
A shooting material that combines a number of components.

(12) In a silver halide photographic light-sensitive material having a silver halide emulsion layer on one side of a transparent support, the amount of silver in the silver halide emulsion layer is 3.0 g / m ² or less, and 50% or more of the total projected area of the silver halide grains contained in the silver halide emulsion layer are tabular silver halide grains, and the main plane of the tabular silver halide grains has an adjacent edge ratio of less than 10 ( 100) plane, the aspect ratio of the silver halide grains on the flat plate is 2 or more, and
The tabular silver halide grains contain silver iodide and at least 50 mol% or more of silver chloride therein, and silver iodide is present near at least one apex or surface of the tabular silver halide grains. And / or a silver halide photographic light-sensitive material having a silver bromide-rich region.

(13) A method of processing a silver halide photographic light-sensitive material, which comprises processing the silver halide photographic light-sensitive material described in the above item (8) for a total processing time of 10 seconds to 45 seconds.

(14) A method of processing a silver halide photographic light-sensitive material, which comprises processing the silver halide photographic light-sensitive material described in the above item (12) for a total processing time of 10 to 45 seconds.

(15) The method for processing a silver halide photographic light-sensitive material as described in the above item (1), wherein the processing is carried out by an automatic developing machine having a mechanism for supplying a solid processing agent to a processing tank of the automatic developing machine.

(16) The method for processing a silver halide photographic light-sensitive material according to the above item (1), which comprises processing with a developing solution containing substantially no dihydroxybenzenes.

The present invention will be described in detail below.

In the light-sensitive material of the present invention, when there are silver halide emulsion layers on both sides of the support, the amount of silver per side is 1.8 g.
/ M ² and there is a silver halide emulsion layer on only one side, the amount of silver is characterized by being 3.6 g / m ² or less. More preferably 0.5 g / m ² or more, respectively.
It is 5 g / m ² or less, 1.0 g / m ² or more, and 3.0 g / m ² or less.

In the present invention, the silver halide grains contained in the emulsion layer are tabular silver halide grains (hereinafter sometimes abbreviated as tabular silver halide grains of the present invention).
The tabular silver halide grain means a grain having two parallel main planes opposed to each other, and a grain size to grain thickness ratio (hereinafter referred to as an aspect ratio) having an average value larger than 1.3. . Here, the grain size means an average projected area diameter (hereinafter referred to as a grain size), which is a circle-equivalent diameter of a projected area of the tabular silver halide grain (of a circle having the same projected area as the silver halide grain). Diameter) and thickness refers to the distance between two parallel major planes forming a tabular silver halide grain.

The tabular silver halide grain of the present invention has an average aspect ratio of 2 or more, preferably 2.0 or more 1.
It is less than 5.0. It is particularly preferably 5 or more and less than 8.

In the present invention, 50% or more of the total projected area of the silver halide grains contained in the emulsion layer is characterized in that it is composed of tabular silver halide grains having a (100) plane as a main plane. Is 70% or more, more preferably 9
It is 0% or more.

In the present invention, the main plane of the tabular silver halide grains is a right-angled parallelogram or a right-angled parallelogram with rounded corners. The average of adjacent side ratios of the right-angled parallelogram is less than 10, preferably less than 5, more preferably less than 2. In addition, the length of a side when the corner is rounded is represented by the distance between the intersection of the straight line portion of the side and the line obtained by extending the straight line portion of the adjacent side.

The average grain size of the tabular silver halide grains of the present invention is preferably 0.15 to 5.0 μm,
The thickness is more preferably 4 to 3.0 μm, most preferably 0.4 to 2.0 μm.

The average thickness of the tabular silver halide grains of the present invention is preferably 0.01 to 1.0 μm, more preferably 0.02 to 0.40 μm, still more preferably 0.02 to 0.2 μm. It is 30 μm.

Particle size and thickness can be optimized to optimize sensitivity and other photographic properties. Optimum particle size, optimum depending on sensitivity and other factors that make up the photosensitive material (thickness of hydrophilic colloid layer, hardness, chemical ripening condition, set sensitivity of photosensitive material, silver coating amount, etc.) The thickness is different.

The tabular silver halide grains of the present invention are preferably monodisperse emulsions having a narrow grain size distribution, specifically, (standard deviation of grain size / average grain size) × 100 = broadness of grain size distribution (% When the breadth of distribution is defined by (), it is preferably 25% or less, more preferably 20% or less, and particularly preferably 15% or less.

The tabular silver halide grains of the present invention preferably have a small thickness distribution. Specifically, when the width of the distribution is defined by (standard deviation of thickness / average thickness) × 100 = width of thickness distribution (%), it is preferably 25% or less, more preferably 20% or less. And particularly preferably 15% or less.

In the tabular silver halide grains of the present invention, silver iodochloride, silver chloroiodobromide or the like can be used as the silver halide. The silver iodide content is preferably 1.0 mol% or less as an average silver iodide content in the entire silver halide grain.
0.5 mol% or less is more preferable, and 0.01 mol% or more and 0.4 mol% or less is particularly preferable.

In the present invention, the silver iodide content and the average silver iodide content of individual silver halide grains are determined by the EPMA method (E
electron Probe Micro Analysis
(Zer method). According to this method, a sample in which emulsion grains are well dispersed so as not to come into contact with each other is prepared, and an X-ray analysis by electron beam excitation and electron beam excitation is performed. By this method, the silver halide composition of each grain can be determined by obtaining the characteristic X-ray intensity of silver and iodide emitted from each grain. When the silver iodide content of at least 50 grains is determined by the EPMA method, the average silver iodide content can be determined from the average thereof.

The tabular silver halide grains contained in the silver halide emulsion of the present invention (hereinafter sometimes abbreviated as tabular silver halide grains of the present invention) have a more uniform iodide content between grains. Preferably. When the distribution of the iodide content among the grains is measured by the EPMA method, the relative standard deviation is preferably 35% or less, more preferably 20% or less.

In the present invention, the tabular silver halide grains contain silver iodide, but it is preferred that the tabular silver halide grains are contained at least inside. In the case of the inside, it is more preferable that it exists at least in the central portion. Further, it is also preferable that it is present on the outermost surface.

In the present invention, the halogen composition distribution inside the silver halide grain is obtained by pretreating the grain into an ultrathin section, and then observing and analyzing with a transmission electron microscope while cooling. Specifically, after taking out silver halide grains from the emulsion, they are embedded in a resin and cut with a diamond knife to prepare a slice having a thickness of 60 nm. It is determined by observing and spot analysis with a transmission electron microscope equipped with an energy dispersive X-ray analyzer while cooling this section with liquid nitrogen, and performing quantitative calculation.
(Inoue, Nagasawa: Proceedings of the 62nd Annual Meeting of the Photographic Society of Japan p62) In the present invention, the silver iodide content on the outermost surface of the tabular silver halide grains is the XPS method (X-ray Photoel).
It refers to the silver iodide content of a portion up to a depth of 50 Å analyzed by electron spectroscopy (X-ray photoelectron spectroscopy), and can be determined as follows.

The sample was cooled in an ultrahigh vacuum of 1 × 10 ^-8 torr or less to -110 ° C. or less, and MgKα as an X-ray for a probe was irradiated with an X-ray source voltage of 15 kV and an X-ray source current of 40 mA to obtain Ag3d5 /. 2, Br3d, I3d 3/2 electrons are measured. The integrated intensity of the measured peak is corrected by a sensitivity factor (Sensitivity Factor), and the halide composition of the outermost surface is determined from the intensity ratio of these.

The purpose of cooling the sample is to eliminate the measurement error caused by the destruction of the sample (decomposition of silver halide and diffusion of halide (particularly iodine)) due to X-ray irradiation at room temperature, and to improve the measurement accuracy. By cooling to -110 ° C, sample destruction can be suppressed to a level that does not hinder measurement.

In the present invention, the tabular silver halide grains contain silver chloride in an amount of 50 mol% or more, preferably 70 mol% or more.

The tabular silver halide grains of the present invention may have dislocations. The dislocation is described in, for example, J. F. Hamilt
on, Photo. Sci. Eng, 57 (1967)
, T. Shiozawa, J .; Soc. Photo. S
ci. It can be observed by a direct method using a transmission electron microscope at low temperature described in Japan, 35, 213 (1972). That is, the silver halide grains, which were taken out carefully so as not to apply pressure enough to cause dislocation to the grains from the emulsion, were placed on a mesh for electron microscope observation, and the sample was taken to prevent damage (printout etc.) due to electron beams. Observation is carried out by the transmission method in the cooled state. At this time, the thicker the particles are, the more difficult it is for the electron beam to pass therethrough. Therefore, it is possible to more clearly observe using a high-voltage electron microscope (200 KV or more for particles having a thickness of 0.25 μm). .

The tabular silver halide grains of the present invention can be prepared by the method described in US Pat. No. 5,320,938. That is, it is preferable to nucleate with low pCl in the presence of iodide ions under the condition that the (100) plane is easily formed. After nucleation, Ostwald ripening and / or growth can be performed to obtain tabular silver halide grains having a desired grain size and distribution. For example, first, a silver salt solution, a halide solution containing iodine ions, and a protective colloid solution are added to the first container to form nuclei, and after the nucleation, the mixed solution is transferred to a second container and grown there. The method is preferably used.

At this time, the growth may be temporarily stopped on the way, and the seed grains may be used to grow silver halide on the seed grains.

Specifically, an aqueous solution containing a protective colloid and seed particles may be preliminarily present in a reaction vessel, and silver ions, halogen ions, or silver halide fine particles may be supplied to grow seed particles. .

To prepare the tabular silver halide grains of the present invention, the pCl of the protective colloid solution is preferably in the range of 0.5 to 3.5, more preferably 1.0 to 3.0, Most preferred is 1.5 to 2.5.

In the preparation of the tabular silver halide grains of the present invention, nucleation is started at the time when the silver salt solution is added to the protective colloid solution, and iodide ions are added simultaneously with the silver salt solution or silver. It is preferable to add it prior to the salt solution, and most preferably when it is added prior to the silver salt solution.

In the preparation of the tabular silver halide grains of the present invention, iodine can be introduced up to the solid solution limit of silver iodide and silver chloride, but the iodine ion in the protective colloid solution at the start of nucleation is The concentration is preferably 10 mol% or less,
It is more preferably 0.01 mol% or more and 10 mol% or less, and most preferably 0.05 mol% or more and 10 mol% or less. In the production of tabular silver halide grains of the present invention, the addition time of the silver salt solution during nucleation is 5 seconds or more 1
Less than a minute is preferred. Further, it is preferable that both the silver salt solution and the halide solution be added at the time of nucleation. It is particularly preferable to add iodine ions.

The bromine ion in the protective colloid solution at the time of nucleation may be present as long as chlorine ion is present in an amount of 50 mol% or more.

In the present invention, the silver chloride content of the nucleus is 50.
It is at least mol%, preferably at least 70 mol%, more preferably at least 90 mol%.

The pH during nucleation is preferably 2-8. The temperature is preferably 30 to 90 ° C, more preferably 35 to 70 ° C.

The amount of silver added at the time of nucleation is 0.
It is preferably 1 to 10 mol%.

In the preparation of tabular silver halide grains of the present invention, a known silver halide solvent such as ammonia, thioether or thiourea can be present.

In the production of tabular silver halide grains of the present invention, a silver salt solution and a halide solution are added at the time of growth by the double jet method, and the rate of addition is such that new nucleation does not occur depending on the growth of grains, In addition, particles having a desired particle size and distribution can be obtained by a method in which the size distribution is not broadened due to Ostwald ripening, that is, a method of gradually changing it within a range of 30 to 100% of the speed at which new nuclei are generated. Another condition for further growth is the Photographic Society of Japan Showa 5
A method of growing by adding silver halide fine particles, dissolving and recrystallizing is also preferably used, as described in 88th Annual Meeting Summary. Particularly, silver iodide fine particles, silver bromide fine particles, silver iodobromide fine particles, and silver chloride fine particles are preferably used.

The tabular silver halide grains of the present invention may be so-called halogen conversion type grains. The amount of halogen conversion is preferably 0.2 mol% to 0.5 mol% with respect to the amount of silver, and the conversion time may be physical ripening or after physical ripening. As a method for halogen conversion, an aqueous halogen solution or silver halide fine particles having a smaller solubility product with silver than the halogen composition on the grain surface before halogen conversion is usually added. At this time, the particle size is preferably 0.2 μm or less, more preferably 0.02.
Is about 0.1 μm.

When silver iodide and / or silver bromide on the outermost surface of the tabular silver halide grains of the present invention is added, the method is as follows: a silver nitrate solution and iodine are added to an emulsion containing tabular grains as a base. A method of simultaneously adding a solution containing ions and / or bromide ions, a method of adding fine silver halide grains such as silver iodide, silver bromide, silver iodobromide or silver chloroiodobromide,
A method of adding potassium iodide or a mixture of potassium iodide and potassium bromide and the like can be applied. Among these, the method of adding fine silver halide grains is preferable. Particularly preferable is a method of adding fine silver iodide grains, fine silver bromide grains, and fine silver iodobromide grains.

The time for adjusting the content of silver iodide and / or silver bromide on the outermost surface is from the final step of the production step of silver halide crystals to the chemical ripening step, and immediately before the coating of silver halide emulsion. It can be selected before the completion of the liquid preparation step, but it is preferable to adjust it before the end of the chemical ripening step.
The term "chemical ripening step" as used herein refers to a point from the time when physical ripening and desalting operations of the silver halide emulsion of the present invention are completed, to the time when a chemical sensitizer is added and then the operation for stopping the chemical ripening is performed. Up to. Further, the addition of silver halide fine grains may be carried out several times with a time interval, or another chemically ripened emulsion may be added after the addition of the fine grains. The temperature of the emulsion solution of the present invention when the silver halide fine grains are added is preferably in the range of 30 to 80 ° C.
Furthermore, the range of 40 to 65 ° C. is particularly preferable. The present invention is preferably carried out under the condition that the silver halide fine particles to be added are partially or wholly lost after the addition and immediately before coating. More preferable condition is 20% of the added silver halide fine particles. The above is the disappearance just before coating.

When silver bromide is contained on the outermost surface of the tabular silver halide grains of the present invention, the method is to add a silver nitrate solution and a solution containing bromide ion to the emulsion containing the tabular grains as the base. A method of simultaneously adding, a method of adding fine silver halide grains of silver bromide and the like can be applied. Among these, the method of adding fine silver halide grains is preferable. Particularly preferred is the addition of fine silver bromide particles.
At this time, iodine and / or chlorine may be contained if necessary. Particularly in the case of iodine, an organic compound that releases iodine ions may be used.

The vicinity of the surface in the present invention means a position within 1/5 of the particle size, measured from the outermost surface of the particle. It is more preferably within 1/7.

As the halogen composition, the silver bromide content localized near the surface is preferably 20 mol% or more, more preferably 50 mol% or more. The silver iodide content localized near the surface is preferably 5 mol% or less, more preferably 1.0 mol% or less.

The term "vicinity of the apex" as used in the present invention means that one side is a length of about 1/3 of the diameter of a circle having the same area as the projected area of the silver halide grain in the present invention, and the apex of the grain is This is within the area of tabular grains that form one corner. As a method for forming a desired localized phase in the vicinity of the apex, a method of adsorbing a compound that selectively adsorbs on the (100) plane on the surface of the grain to suppress or prevent the initiation of halogen substitution can be preferably used. Examples of such compounds include cyanine dyes, merocyanine dyes, mercaptoazoles, and purines.

When a localized phase is formed near the apex, pressure desensitization is likely to occur, but this is not recognized in the present invention. (1
00) is considered to be peculiar to tabular grains having a main plane, but this could not be expected easily at first.

In producing the tabular silver halide grains of the present invention, stirring conditions during production are extremely important. As the stirring device, the device shown in JP-A-62-160128, in which the additive liquid nozzle is installed in the liquid near the mother liquor suction port of the stirrer, is particularly preferably used. At this time, the stirring rotation speed is preferably 100 to 1200 rpm.

In the tabular silver halide grain of the present invention, the cadmium salt, zinc salt, lead salt, thallium salt, iridium salt (including complex salt), rhodium salt ( It is preferable to add a metal ion using at least one selected from the group consisting of complex salts) and iron salt (including complex salts) so that these metal elements are contained inside and / or on the surface of the particles.

In the present invention, it is also preferable to add a silver halide solvent before the desalting step in order to accelerate the developing rate. For example, a thiocyanate compound (potassium thiocyanate, sodium thiocyanate, ammonium thiocyanate, etc.) is preferably added in an amount of 1 × 10 ^{−3 to} 3 × 10 ⁻² mol per mol of silver.

In the present invention, it is preferable to use gelatin as the dispersion medium for the protective colloid of silver halide grains, and as the gelatin, alkali-treated gelatin, acid-treated gelatin, low molecular weight gelatin (having a molecular weight of 20,000 to 10).
10,000), modified gelatin such as phthalated gelatin is used. Other hydrophilic colloids can also be used. Specifically, Research Disclosure (Resea)
rch Disclosure (hereinafter abbreviated as RD)
Volume 76 No. 17643 (December 1978).

In the production of the tabular silver halide grains of the present invention, unnecessary soluble salts may be removed during the growth of the silver halide grains, or they may be contained therein.
When removing the salts, RD Vol. 176 No. 17
It can be performed based on the method described in the paragraph 643.

The tabular silver halide grains of the present invention can be chemically sensitized.

There are no particular restrictions on the conditions of the chemical ripening, that is, the steps of chemical sensitization, such as pH, pAg, temperature and time, and the conditions generally used in the art can be used. For chemical sensitization, a sulfur sensitization method using a compound containing sulfur capable of reacting with silver ions or active gelatin, a selenium sensitization method using a selenium compound, a tellurium sensitization method using a tellurium compound, or a reducing substance is used. The reduction sensitization method used, gold or the like, and the noble metal sensitization method using a noble metal can be used alone or in combination, and above all, the selenium sensitization method,
A tellurium sensitization method, a reduction sensitization method and the like are preferably used, and a selenium sensitization method is particularly preferably used.

In the case of selenium sensitization, the selenium sensitizers used include a wide variety of selenium compounds. For example, in this regard, US Pat. Nos. 1,574,944 and 1,602,
592, 1,623,499 and JP-A-60-15.
No. 0046, JP-A-4-25832 and JP-A-4-1092.
40, No. 4-147250 and the like.

Useful selenium sensitizers include colloidal selenium metal, isoselenocyanates (eg allyl isoselenocyanate), selenoureas (eg N, N-dimethylselenourea, N, N, N′-triethylseleno). Urea, N, N, N'-trimethyl-N'-heptafluoroselenourea, N, N, N'-trimethyl-N'-heptafluoropropylcarbonylselenourea, N, N, N '
-Trimethyl-N'-4-nitrophenylcarbonyl selenourea etc.), selenoketones (eg selenoacetone, selenoacetophenone etc.), selenoamides (eg selenoacetamide, N, N-dimethylselenobenzamide etc.), selenocarboxylic acids and Selenoesters (eg, 2-selenopropionic acid, methyl-3-selenobutyrate, etc.), selenophosphates (eg, tri-p-triselenophosphate, etc.), selenides (triphenylphosphine selenide, diethylselena) Id, diethyl diselenide, etc.). Particularly preferred selenium sensitizers are selenoureas, selenamides, selenoketones, and selenides.

Specific examples of techniques for using these selenium sensitizers are disclosed in the following patents.

US Pat. Nos. 1,574,944 and 1,
No. 602,592, No. 1,623,499, No. 3,2
97,446, 3,297,447, 3,32
0,069, 3,408,196, 3,40
8,197, 3,442,653, 3,42
No. 0,670, No. 3,591,385, French Patent Nos. 2,693,038, No. 2,093,209, Japanese Patent Publication Nos. 52-34491, 52-34492, 5
3-295, 57-22090, JP-A-59-1
No. 80536, No. 59-185330, No. 59-18
1337, 59-187338, 59-192.
No. 241, No. 60-150046, No. 60-1516
37, 61-246738, JP-A-3-42221.
No. 3, No. 24-24537, No. 3-111838, No. 3
No. 116132, No. 3-148648, No. 3-23
7450, 4-16838, 4-25832
No. 4, No. 4-32831, No. 4-96059, No. 4-
109240, 4-140738, 4-140
No. 739, No. 4-147250, No. 4-149437.
No. 4-184331, No. 4-190225, No. 4-191729, No. 4-195035, British Patent Nos. 255,846, 861,984.

H. E. Jou by Spencer et al.
rnal of Photographic Scie
nce, 31 volumes, 158-169 pages (1983).

The amount of the selenium sensitizer used varies depending on the selenium compound used, silver halide grains, chemical ripening conditions and the like, but generally about 10 ^-8 to 10 ^-4 mol per mol of silver halide is used. Further, the addition method may be a method of adding it by dissolving it in a single solvent or a mixed solvent of water or an organic solvent such as methanol or ethanol, or a method of adding it by mixing with a gelatin solution in advance, depending on the properties of the selenium compound used. The method disclosed in JP-A-4-140739, that is, the method of adding in the form of an emulsion dispersion of a mixed solution with a polymer soluble in an organic solvent may be used.

The temperature of chemical ripening using a selenium sensitizer is 4
The range of 0 to 90 ° C is preferable. More preferably 45 ° C
It is above 80 ° C. The pH is 4-9 and the pAg is 6
The range of -9.5 is preferable.

Regarding tellurium sensitizers and sensitizing methods, US Pat. Nos. 1,623,499 and 3,320,069,
3,772,031, 3,531,289, 3,655,394, British Patent No. 235,211;
1,121,496, 1,295,462, 1,396,696, Canadian Patent 800,958,
It is disclosed in Japanese Patent Application Laid-Open Nos. 4-204640 and 4-3334303.

Examples of useful tellurium sensitizers include telluroureas (eg, N, N-dimethyl tellurourea, tetramethyl tellurourea, N-carboxyethyl-N, N'-).
Dimethyl tellurourea, N, N'-dimethyl-N'phenyl tellurourea, phosphine tellurides (for example, tributylphosphine telluride, tricyclohexylphosphine telluride, triisopropylphosphine telluride,
Butyl-diisopropylphosphine telluride, dibutylphenylphosphine telluride), telluroamides (e.g., telluroacetamide, N, N-dimethyl tellurobenzamide), telluroketones, telluroesters, and isotelloocyanates.

The technique for using the tellurium sensitizer is in accordance with the technique for using the selenium sensitizer.

It is also preferable to carry out so-called reduction sensitization on the grain surface by placing in an appropriate reducing atmosphere. Preferred examples of the reducing agent include thiourea dioxide and ascorbic acid and their derivatives. Other preferable reducing agents include hydrazine, polyamines such as diethylenetriamine, dimethylamineboranes, sulfites and the like.

The amount of reducing agent added is such as the type of reduction sensitizer, the grain size of silver halide grains, the composition and crystal habit, the temperature of the reaction system, and p.
Although it is preferable to change it depending on environmental conditions such as H and pAg, for example, in the case of thiourea dioxide, as a rough guide, use of about 0.01 to 2 mg per mol of silver halide gives preferable results. In the case of ascorbic acid, the range is preferably about 50 mg to 2 g per mol of silver halide.

As conditions for reduction sensitization, the temperature is about 40 to 7
0 ° C, time about 10-200 minutes, pH about 5-11, p
Ag is preferably in the range of about 1 to 10 (here, pAg
The value is the reciprocal of the Ag ⁺ ion concentration).

Silver nitrate is preferred as the water-soluble silver salt. So-called silver ripening, which is a kind of reduction sensitization technique, is performed by adding a water-soluble silver salt. The pAg during silver ripening is suitably 1 to 6, and preferably 2 to 4. The conditions such as temperature, pH and time are preferably within the above-mentioned reduction sensitization condition range. As a stabilizer for a silver halide photographic emulsion containing reduction-sensitized silver halide grains, a general stabilizer described below can be used, but the stabilizer disclosed in JP-A-57-82831 is used. Inhibitor, and / or V.I. S. Paper by Gahler [Zeitshift fur wissen
schaftriche Photographie
Bd. 63, 133 (1969)] and JP-A-54-1.
Good results are often obtained with the thiosulphonic acids described in 019. The addition of these compounds may be carried out at any stage in the emulsion production process from the crystal growth to the process immediately before coating.

The tabular silver halide grains according to the present invention are
It may be spectrally sensitized with methine dyes or the like. The dyes used include cyanine dyes, merocyanine dyes, complex cyanine dyes, complex merocyanine dyes, holobola cyanine dyes, hemicyanine dyes, styryl dyes and hemioxonol dyes. Particularly useful dyes are those belonging to the cyanine dyes, merocyanine dyes and complex merocyanine dyes.

These dyes can be applied to any of the commonly used nuclei. That is, a pyrroline nucleus, an oxazoline nucleus, a thiazoline nucleus, a pyrrole nucleus, an oxazole nucleus, a thiazole nucleus, a selenazole nucleus, an imidazole nucleus, a tetrazole nucleus, a pyridine nucleus, etc., a nucleus in which an aliphatic hydrocarbon ring is fused to these nuclei, that is, India. The renin nucleus, benzindolenine nucleus, indole nucleus, benzoxazole nucleus, naphthoxazole nucleus, benzothiazole nucleus, naphthothiazole nucleus, benzoselenazole nucleus, benzimidazole nucleus, quinoline nucleus and the like can be applied. These nuclei may have a substituent on a carbon atom.

In the merocyanine dye or the complex merocyanine dye, pyrazoline-containing nuclei having a ketomethine structure are used.
5 to 6 such as 5-one nucleus, thiohydantoin nucleus, 2-thiooxazolidine-2,4-dione nucleus, thiazoline-2,4-dione nucleus, rhodanine nucleus and thiobarbituric acid nucleus
Member heterocyclic nuclei can be applied.

These sensitizing dyes may be used alone or in combination, and the combination is often used particularly for the purpose of supersensitization. Further, together with the sensitizing dye, a dye having no spectral sensitizing property or a substance which does not substantially absorb visible light and exhibits a supersensitizing effect may be contained in the emulsion layer. For example, a substituted aminostilbene compound having a nitrogen-containing heterocyclic nucleus group (for example, US Pat.
33,390, 3,635,721), aromatic organic acid formaldehyde condensate (for example, US Pat. No. 3,743,510), cadmium salt, azaindene compound, etc. Good.

US Pat. Nos. 3,615,613 and 3,6.
No. 15,641, No. 3,617,295, No. 3,63
The combinations described in No. 5,721 and the like are particularly useful. The sensitizing dye may be added during or during each step of nucleation, growth, desalting, chemical sensitization, or after chemical sensitization.

For the tabular silver halide grains according to the present invention, the following cyanine or carbocyanine dyes can be used alone or in combination.

[0098]

[Chemical 1]

[0099]

[Chemical 2]

[0100]

[Chemical 3]

[0101]

[Chemical 4]

[0102]

[Chemical 5]

[0103]

[Chemical 6]

[0104]

[Chemical 7]

When any at least one of the silver halide emulsion layer of the present invention and the constituent layers other than the emulsion layer contains a dye capable of decolorizing and / or flowing out during development processing,
A photosensitive material having high sensitivity, high sharpness and suitability for rapid processing can be obtained. The dye used in the light-sensitive material may be appropriately selected from dyes capable of improving sharpness by absorbing a desired wavelength and removing the influence of the wavelength, depending on the light-sensitive material. I can. It is preferable that the dye be decolorized or flowed out during the development processing of the light-sensitive material, and the coloring should not be visible when the image is completed.

The dye according to the present invention is a dye which is substantially insoluble in water at a pH of 7 or less and substantially water-soluble at a pH of 7 or more, and specifically, the following general formulas [1] to [6] Is selected from the dyes represented by.

[0107]

[Chemical 8]

[Wherein A and A ′, which may be the same or different, each represents an acidic nucleus, B represents a basic nucleus, Q represents an aryl group or a heterocyclic group, and Q ′ represents a heterocyclic group. Group, X and Y, which may be the same or different, each represents an electron-withdrawing group, and L ₁ , L ₂ and L ₃ each represent a methine group. m represents 0 or 1, n represents 0, 1 or 2, and p represents 0 or 1. However, the general formula [1]
The dyes represented by [6] to [6] have at least one group selected from a carboxy group, a sulfonamide group and a sulfamoyl group in the molecule. The acidic nuclei represented by A and A ′ in the general formulas [1], [2] and [3] are preferably 5-pyrazolone, barbituric acid, thiobarbituric acid, rhodanine, hydantoin, thiohydantoin, Examples thereof include oxazolone, isoxazolone, indandione, pyrazolidinedione, oxazolidinedione, hydroxypyridone and pyrazolopyridone.

The basic nucleus represented by B in the general formulas [3] and [5] is preferably pyridine, quinoline, oxazole, benzoxazole, naphthoxazole,
Examples include thiazole, benzthiazole, naphthothiazole, indolenine, pyrrole and indole.

Examples of the aryl group represented by Q in the general formulas [1] and [4] include a phenyl group, a naphthyl group and a julolidyl group. In addition, the general formula [1],
Examples of the heterocyclic group represented by Q and Q'in [4] and [6] include, for example, pyridyl group, quinolyl group, isoquinolyl group, pyrrolyl group, pyrazolyl group, imidazolyl group, indolyl group, furyl group, thienyl group, etc. Is mentioned. The aryl group and the heterocyclic group include those having a substituent,
Examples of the substituent include an alkyl group, a cycloalkyl group, an alkenyl group, an aryl group, a halogen atom, an alkoxycarbonyl group, an aryloxycarbonyl group, a carboxy group, a cyano group, a hydroxy group, a mercapto group, an amino group, an alkoxy group, Aryloxy group, acyl group,
Examples thereof include a carbamoyl group, an acylamino group, a ureido group, a sulfonamide group, and a sulfamoyl group, and these substituents may have two or more kinds in combination. Preferred substituents are alkyl groups having 1 to 8 carbon atoms (eg, methyl group, ethyl group, t-butyl group, n-octyl group, 2-hydroxyethyl group, 2-methoxyethyl group, etc.), hydroxy group, cyano. A group, a halogen atom (for example, a fluorine atom,
Chlorine atom, etc., alkoxy group having 1 to 6 carbon atoms (eg, methoxy group, ethoxy group, 2-hydroxyethoxy group, methylenedioxy group, n-butoxy group, etc.), substituted amino group (eg, dimethylamino group, diethylamino group) , Di (n
-Butyl) amino group, N-ethyl-N-hydroxyethylamino group, N-ethyl-N-methanesulfonamidoethylamino group, morpholino group, piperidino group, pyrrolidino group, etc.), carboxy group, sulfonamide group (for example, methane) Sulfonamide group, benzenesulfonamide group, etc.), sulfamoyl group (eg, sulfamoyl group, methylsulfamoyl group, phenylsulfamoyl group, etc.)
And these substituents may be combined.

The electron-withdrawing groups represented by X and Y in the general formulas [4] and [5] may be the same or different, and the σp value of the substituent constant Hammett (edited by Toshio Fujita, “Chemical Domain”). Special Issue No. 122 Structure-Activity Relationship of Drugs, 96-1
03 (1979) Nankodo. ) Is 0.3 or more, for example, a cyano group, an alkoxycarbonyl group (eg, a methoxycarbonyl group, an ethoxycarbonyl group, a butoxycarbonyl group, an octyloxycarbonyl group, etc.), an aryloxycarbonyl group (eg, a phenoxycarbonyl group, 4 -Hydroxyphenoxycarbonyl group), a carbamoyl group (for example, a carbamoyl group, a methylcarbamoyl group, an ethylcarbamoyl group,
Butylcarbamoyl noble, dimethylcarbamoyl group, phenylcarbamoyl group, 4-carboxyphenylcarbamoyl group, etc.), acyl group (for example, methylcarbonyl group, ethylcarbonyl group, butylcarbonyl group, phenylcarbonyl group, 4-ethylsulfonamidophenylcarbonyl group, etc.) ), Alkylsulfonyl group (eg, methylsulfonyl group, ethylsulfonyl group, butylsulfonyl group, octylsulfonyl group, etc.), arylsulfonyl group (eg, phenylsulfonyl group, 4-chlorosulfonyl group, etc.)
Is mentioned.

L ₁ , L ₂ and L _{3 of the} general formulas [1] to [5]
The methine group represented by includes those having a substituent, and examples of the substituent include an alkyl group having 1 to 6 carbon atoms (for example, a methyl group, an ethyl group, a hexyl group, etc.), an aryl group (for example, a phenyl group). , Tolyl group, 4-hydroxyphenyl group etc.), aralkyl group (eg benzyl group, phenethyl group etc.), heterocyclic group (eg pyridyl group, furyl group, thienyl group etc.), substituted amino group (eg dimethylamino group, diethylamino) Group, anilino group, etc.) and an alkylthio group (eg, methylthio group, etc.).

In the present invention, among the dyes represented by the general formulas [1] to [6], a dye having at least one carboxy group in the molecule is preferably used, and more preferably the general formula [1]. A dye represented by the formula, and particularly preferably a dye in which Q is a furyl group in the general formula [1].

Next, specific examples of the dye used in the present invention will be given.

[0115]

[Chemical 9]

[0116]

[Chemical 10]

[0117]

[Chemical 11]

[0118]

[Chemical 12]

[0119]

[Chemical 13]

[0120]

[Chemical 14]

[0121]

[Chemical 15]

[0122]

[Chemical 16]

[0123]

[Chemical 17]

[0124]

[Chemical 18]

[0125]

[Chemical 19]

[0126]

Embedded image

Specific examples of the dye used in the present invention are further described in JP-A Nos. 52-92716 and 55-120030.
55-155350, 55-155351, 56-12639, 63-197943, JP-A Nos. 2-1838, 2-1839, and WO8.
8/04794, U.S. Pat. Nos. 4,861,700, 4,950,586, and European Patent 489,973, etc., and the synthesis method is also based on the method described in these patents. Can be synthesized.

The method for producing a solid fine particle dispersion of a dye according to the present invention is described in JP-A-52-92716, JP-A-55-155350, JP-A-55-155351 and JP-A-5-155351.
The methods described in, for example, 3-197943, JP-A-3-182743, and WO88 / 04794 can be used. Specifically, it can be prepared using a surfactant using a fine disperser such as a ball mill, a vibration mill, a planetary mill, a sand mill, a roller mill, a jet mill and a disc impeller mill. Also, after dissolving the dye in a weak alkaline aqueous solution, a method of precipitating fine particulate solids by lowering the pH to weakly acidic or a weak alkaline solution of the dye and an acidic aqueous solution are mixed at the same time while adjusting the pH. Dispersions of dyes can be obtained by the method of making finely divided solids. The dyes may be used alone or in combination of two or more.
When two or more kinds are mixed and used, they may be dispersed individually and then mixed, or may be simultaneously dispersed.

The solid fine particle-dispersed dye according to the present invention is preferably dispersed so that the average particle diameter is 0.01 to 5 μm, more preferably 0.01 to 1 μm.
And particularly preferably 0.01 to 0.5 μm.
The coefficient of variation of particle size distribution is preferably 50% or less, more preferably 40% or less, and particularly preferably 30% or less. Here, the variation coefficient of the particle size distribution is a value represented by the following formula.

(Standard deviation of particle size) / (Average value of particle size) × 100 The conditions to be met as a preservative for the solid fine particle dispersion of the dye used in the photographic light-sensitive material are: It has no effect, is a bactericidal and mildew-proofing agent that is highly effective against small amounts of microorganisms such as bacteria, yeasts and molds, desensitization,
There are no influences on photographic performance such as fog, graininess and sharpness, and no influence on photographic processing performance such as developability and fixability.

As the surfactant according to the present invention, any of anionic surfactants, nonionic surfactants, cationic surfactants and amphoteric surfactants can be used, but preferred are, for example, alkyl sulfonates and alkylbenzenes. Anionic surfactants such as sulfonates, alkylnaphthalene sulfonates, alkyl sulfates, sulfosuccinates, sulfoalkyl polyoxyethiene alkylphenyl ethers, N-acyl-N-alkyl taurines and Nonionic surfactants such as saponins, alkylene oxide derivatives, and alkyl esters of sugars.

The amount of the anionic activator and / or the nonionic activator to be used is not uniform depending on the kind of the activator or the conditions of the dispersion liquid of the dye, but it is usually 0.1 to 2000 mg per 1 g of the dye. , Preferably 0.5 to 1
It may be 000 mg, more preferably 1 to 500 mg. The concentration of the dye dispersion is 0.01 to 10
It is used in an amount of 0.1% by weight, preferably 0.1 to 5% by weight. The surfactant may be added at a position before the dispersion of the dye is started, and if necessary, it may be further added to the dye dispersion after the dispersion is completed. These anionic activators and / or nonionic activators may be used alone, or may be used in combination of two or more kinds, and may be used in combination of both activators.

To the dye dispersion, a hydrophilic colloid used as a binder of a photographic constituent layer can be added before the start of dispersion or after the end of dispersion. As the hydrophilic colloid, it is advantageous to use gelatin, but in addition to the above, gelatin derivatives such as phenylcarbamylated gelatin, acylated gelatin, phthalated gelatin and the like, and gelatin and a monomer having a polymerizable ethylene group are used. Graft polymer, carboxymethyl cellulose, hydroxymethyl cellulose, cellulose derivatives such as cellulose sulfate, polyvinyl alcohol, partially oxidized polyvinyl acetate, polyacrylamide, poly-N, N-
Synthetic hydrophilic polymers such as dimethylacrylamide, poly-N-vinylpyrrolidone and polymethacrylic acid, agar, gum arabic, alginic acid, albumin and casein can be used. You may use these in combination of 2 or more types. The addition amount of the hydrophilic colloid added to the dye dispersion of the present invention is preferably 0.1 to 12% by weight, and more preferably,
It is 0.5 to 8% by weight.

In the present invention, the constituent layer to which a dye is added is preferably a silver halide emulsion layer or a layer closer to the support or both, and more preferably a coating adjacent to a transparent support. It is effective to add it to the layer. The dye preferably has a high concentration on the side close to the support.

In the present invention, the amount of the above dye added can be changed according to the sharpness target. Preferably 0.2 to 20 mg / m ² , more preferably 0.8
~ 15 mg / m ² .

In the light-sensitive material of the present invention, when the silver halide emulsion layer is colored, a dye is added to the silver halide emulsion solution before coating or to an aqueous solution of hydrophilic colloid,
These liquids may be coated on the support directly or through other hydrophilic colloid layers by various methods.

As described above, it is preferable that the dye has a high concentration on the side closer to the support. However, in order to fix the dye on the side closer to the support in this way, a moldant can be used. For example, a non-diffusible mordanting agent can be used as a substance to be combined with at least one of the above-mentioned dyes, and examples thereof include West German Patent No. 2,263,031, British Patent No. 1,
221,131, 1,221,195, JP-A-5
No. 0-47624, No. 50-71332, Japanese Patent Publication No. 51
No. 1418, U.S. Pat. Nos. 2,548,564, 2,675,316, 2,795,519, 2,839,401, 2,882,156, and 3,048. , 487, 3,184,309, 3,444,138, 3,445,231, 3,706,563, 3,709,690, 3,788,855. The compounds described in JP-A-No. 4-2 can be preferably used.

In carrying out the present invention, the method of binding the non-diffusible moldant and the dye may be carried out by various methods known in the art, but the method of binding in a gelatin binder is preferably applied. To be done. In addition, a method in which they are bound in a suitable binder and dispersed in a gelatin aqueous solution by ultrasonic waves or the like can also be applied.

Although the binding ratio is not uniform depending on the compound, 0.1 part to 10 parts of the non-diffusible mordant is usually bonded to 1 part of the water-soluble dye. Since the water-soluble dye is added to the non-diffusible moldant, it can be used in a larger amount than when the dye is used alone.

When it is contained in the light-sensitive material, a constituent layer containing a combination of a dye and a non-diffusible moldant may be newly provided as a constituent layer, and its position can be arbitrarily selected, but is preferably transparent. It is effective to use it as a coating layer adjacent to the support.

Silicone compounds described in US Pat. Nos. 3,489,576 and 4,047,958 as slipping agents in the surface layer of the silver halide photographic light-sensitive material of the present invention, as described in JP-B-56-23139. Paraffin wax, higher fatty acid ester, starch derivative, and the like can be used in addition to the colloidal silica.

Polyols such as trimethylolpropane, pentanediol, butanediol, ethylene glycol and glycerin can be added as a plasticizer to the constituent layer of the silver halide photographic light-sensitive material of the present invention.

Further, in the present invention, a polymer latex can be contained in any at least one of the silver halide emulsion layer and the constituent layers other than the emulsion layer for the purpose of improving pressure resistance. The polymer latex is preferably a homopolymer of an alkyl ester of acrylic acid or a copolymer of acrylic acid, styrene, etc., a styrene-butadiene copolymer, an active methylene group, a polymer having a water-soluble group or a monomer having a crosslinkable group with gelatin. Can be used.

In particular, in order to increase the affinity with gelatin as a binder, a copolymer with a monomer having a water-soluble group containing a hydrophobic monomer such as an acrylic acid alkyl ester or styrene as a main component or a crosslinkable group with gelatin is most preferable. It is preferably used. Desirable examples of the monomer having a water-soluble group are acrylic acid, methacrylic acid, maleic acid, 2-acrylamido-2-methylpropanesulfonic acid, styrenesulfonic acid, etc., and desirable examples of monomers having crosslinkability with gelatin. Examples thereof include glycidyl acrylate, glycidyl methacrylate and N-methylol acrylamide.

In the present invention, examples of the matting agent include US Pat. Nos. 2,992,101 and 2,701,245.
Nos. 4,142,894, 4,396,706 and the like, homopolymers of polymethylmethacrylate or polymers of methylmethacrylate and methacrylic acid, organic compounds such as starch, silica, titanium dioxide,
Fine particles of an inorganic compound such as strontium sulfate and barium sulfate can be used in combination. The particle size is preferably 0.6 to 10 μm, and particularly preferably 1 to 5 μm.

In the present invention, organic matting particles can also be used as the matting agent. What is an organic matter aggregate particle?
Agglomerated particles having a particle diameter of 1.0 to 20 μm in which a plurality of temporary particles having a small particle diameter of 05 to 0.50 μm are agglomerated. The shape of the aggregated particles may be either spherical or amorphous. The component as the organic substance is arbitrarily selected from alkyl methacrylate, alkyl acrylate, methacrylate in which an alkyl group is substituted with fluorine or silicon, acrylate and styrene, and may be a homopolymer or a copolymer, but polymethyl methacrylate is preferable. Specific examples thereof include GR-5 and GR-5P manufactured by Soken Chemical Industry Co., Ltd. The preferable addition amount is 10 to 200 mg / m ² in order to exert the effect without deteriorating the haze.

In the present invention, for the purpose of improving the pressure resistance, the silver halide emulsion layer can contain inorganic fine particles. The main components of the inorganic fine particles are silicon, aluminum, titanium, indium, yttrium, tin, antimony, zinc, nickel, copper, iron, cobalt, manganese, molybdenum, niobium, zirconium, vanadium,
Among oxides selected from alkali metals and alkaline earth metals, silicon oxide (colloidal silica), aluminum oxide, tin oxide, vanadium oxide and yttrium oxide are preferable among them in terms of transparency and hardness. . When these inorganic oxides are dispersed in water to form a sol, the surface thereof may be treated with alumina, yttrium, cerium or the like in order to enhance the water dispersion stability of itself. It may be shelled with pre-crosslinked gelatin in order to enhance the affinity with gelatin. The amount of the inorganic fine particles used in the present invention is preferably 0.05 to 1.0 by dry weight ratio to gelatin used as the binder of the layer to be added, and preferably 0.1 to 0.1.
It is 0.7. Further, the above-mentioned inorganic fine particles may be used in combination. The preferable particle size of the inorganic fine particles is 1 to 300 nm.

The silver halide photographic light-sensitive material of the present invention preferably contains a water-soluble polymer. As the water-soluble polymer, polyacrylamide, polyvinyl alcohol, polyvinylpyrrolidone, etc. described in US Pat. No. 3,271,158 can be effectively used. Polysaccharides such as dextrin, dextran, sucrose and pullulan are also effective. Among them, polyacrylamide, dextran and dextrin are preferable, and dextrin is particularly preferable. The average molecular weight of these substances is preferably 20,000 or less, more preferably 10,000 or less.

In the present invention, the amount of the hydrophilic binder in the silver halide emulsion layer is preferably 3.0 g / m ² or less, and more preferably 2.0 g / m ² per side of the support when the emulsion layers are provided on both sides of the support. m ² or less. When it is on one side of the support, it is preferably 6.0 g / m ² or less, more preferably 4.0 g / m ² or less.

The silver halide photographic light-sensitive material of the present invention is a black and white silver halide photographic light-sensitive material (for example, a medical light-sensitive material, a printing light-sensitive material, a negative light-sensitive material for general photography), a color photographic light-sensitive material (for example, a color negative). Sensitive materials, color reversal sensitive materials, color printing sensitive materials, etc.), diffusion transfer photosensitive materials, photothermographic materials, etc., but black and white silver halide photographic photosensitive materials are preferred, and medical sensitive materials are particularly preferred. Is.

The silver halide photographic light-sensitive material of the present invention may contain a developing agent such as aminophenol, ascorbic acid, pyrocatechol, hydroquinone, phenylenediamine or 3-pyrazolidone in the emulsion layer or a layer having other layers. Good.

The silver halide emulsion layer and the non-photosensitive hydrophilic colloid layer of the light-sensitive material of the present invention preferably contain an inorganic or organic hardener. For example, chromium salts (chromium alum, chromium acetate, etc.), aldehydes (formaldehyde, glyoxal, glutaraldehyde, etc.), N-methylol compounds (dimethylolurea, methyloldimethylhydantoin, etc.), dioxane derivatives (2,3-dihydroxydioxane, etc.) ), An active vinyl compound (1,3,5-triacryloyl-hexahydro-s-triazine, bis (vinylsulfonyl) methyl ether, N, N-methylenebis (β- (vinylsulfonyl) propionamide), and other active halogen compounds ( 2,4-dichloro-6-hydroxy-s-triazine, etc.), mucohalogen acids (mucochloric acid, mucophenoxycycloric acid, etc.), isoxazoles, 2-chloro-6-hydroxytriazinylated gelatin, etc. It can be used Germany or in combination. Among them JP 53-41221, the 53-57257 JP, the 59-
The active vinyl compounds described in, for example, 162456 and 60-80846 and the active halogen compounds described in U.S. Pat. No. 3,325,287 are preferable.

As the hardener, a polymer hardener can be effectively used. For example, dialdehyde starch, polyacrolein, polymers having aldehyde groups such as acrolein copolymers described in US Pat. No. 3,396,029, polymers having epoxy groups described in US Pat. No. 3,623,878, US Patent No. 3,362,827, Research Disclosure (RD) 17333 (1978)
, Etc., a polymer having a dichlorotriazine group, a polymer having an active ester group described in JP-A-56-66841, JP-A-56-14.
2524, U.S. Pat. No. 4,161,407, JP-A-54
-65033, RD16725 (1978), and other polymers having an active vinyl group or a group serving as a precursor thereof are preferable, and among them, JP-A-56-1
Particularly preferred are polymers in which the active vinyl group, or its precursor group, is attached to the polymer backbone by a long spacer as described in 42425.

In order to make the photographic light-sensitive material of the present invention suitable for rapid processing, an appropriate amount of a hardener is added in advance in the step of applying a light-sensitive material to adjust the water swelling rate in the developing-fixing-washing step. Therefore, it is preferable to reduce the water content in the light-sensitive material before the start of drying.

The silver halide light-sensitive material of the present invention preferably has a swelling ratio during development of 150 to 250% and a film thickness after expansion of 70 μm or less. Water swell rate is 250
If it exceeds%, poor drying occurs, for example, automatic processor processing,
Especially in rapid processing, poor conveyance also occurs. When the water swelling ratio is less than 150%, uneven development and residual color tend to be deteriorated when developing. Here, the water swelling ratio means the difference between the film thickness after swelling in each processing solution and the film thickness before the development processing, which is divided by the film thickness before processing and multiplied by 100.

The support usable in the silver halide photographic light-sensitive material of the present invention is, for example, RD-1 described above.
7643, page 28 and RD-308119, page 1009. A suitable support is a plastic film or the like, and the surface of these supports is provided with a subbing layer to improve adhesion of the coating layer,
You may give corona discharge, ultraviolet irradiation, etc.

In the silver halide photographic light-sensitive material of the present invention, various additives can be added to the silver halide emulsion according to the purpose. As the additives and others used,
For example, (RD) 17643 (December 1978), 1
8716 (November 1979) and 308119 (1)
Those described in December 989). The places where they are written are listed below.

Additive RD-17643 RD-18716 RD-308119 Page Classification Page Classification Page Classification Chemical Sensitizer 23 III 648 Upper right 996 III Sensitizing Dye 23 IV 648-649 996-8 IVA Desensitizing Dye 23 IV 998 IVB Dye 25-26 VIII 649-650 1003 VIII Development accelerator 29 XXI 648 Upper right fog inhibitor / stabilizer 24 IV 649 Upper right 1006-7 VI Whitening agent 24 V 998 V Hardener 26 X 651 Left 1004-5 X Surfactant Agent 26-7 XI 650 Right 1005-6 XI Antistatic Agent 27 XII 650 Right 1006-7 XIII Plasticizer 27 XII 650 Right 1006 XII Sliding Agent 27 XII Matting Agent 28 XVI 650 Right 1008-9 XVI Binder 26 XXII 1003-4 IX Support 28 XVII 1009 XVII Next, preferable development processing of the light-sensitive material of the present invention For described with.

In the processing method of the silver halide photographic light-sensitive material of the present invention, the silver halide photographic light-sensitive material of the present invention may be processed in a total processing time of 10 seconds to 45 seconds.

As a developer for developing the light-sensitive material of the present invention, dihydroxybenzenes such as hydroquinone and para-aminophenols described in JP-A-4-15641 and JP-A-4-16841 can be used as a developing agent.
Examples of 3-pyrazolidones such as p-aminophenol, N-methyl-p-aminophenol, and 2,4-diamiphenol include 1-phenyl-3-pyrazolidones, 1-phenyl-3-pyrazolidone, and 1-phenyl-3-pyrazolidone. -Phenyl-4-methyl-4-hydroxymethyl-3-pyrazolidone, 5,5-dimethyl-1-phenyl-3-pyrazolidone and the like, and further ascorbic acids, which may be used alone or in combination as necessary. Although used, ascorbic acids can be particularly preferably used.

The amount of the above-mentioned para-aminophenols and 3-aminopyrazolidones used is preferably 0.004 mol / liter, more preferably 0.04-0.12.
Mol / liter. The total number of moles of dihydroxybenzenes, para-aminophenols, 3-pyrazolidones, and ascorbic acids contained in these components of all developing solutions is preferably 0.1 mol / liter or less.

The preservative may include sulfites such as potassium sulfite, sodium sulfite, reductones such as piperidinohexose reductone, and these are preferably 0.2 to 1 mol / liter, more preferably Is preferably 0.3 to 0.6 mol / liter.
In addition, adding a large amount of ascorbic acid also leads to processing stability.

The alkaline agent includes a pH adjusting agent such as sodium hydroxide, potassium hydroxide, sodium carbonate, potassium carbonate, sodium triphosphate and potassium triphosphate.

Further, a borate described in JP-A-61-28708 and a buffer such as saccharose, acetoxime, 5-sulfosalicylic acid, phosphate and carbonate described in JP-A-60-93439 may be used. . The content of these agents is such that the pH of the developer is 9.0 to 13, preferably 10 to 12.
Choose to be 5.

As the solubilizing agent, polyethylene glycols and their esters can be contained, and as the sensitizing agent, for example, a quaternary ammonium salt, a development accelerator and a surfactant can be contained.

Examples of the silver sludge preventive agent include those disclosed in Japanese Patent Laid-Open No.
No. 6,106,244, a silver stain inhibitor, JP-A-3-5
The sulfides and disulfide compounds described in 1844 and the cysteine derivatives or triazine compounds described in Japanese Patent Application No. 4-92947 are preferably used.

As the organic inhibitor, an azole type organic antifoggant, for example, an indazole type, an imidazole type, a benzimidazole type, a triazole type, a benztriazo type, a tetrazole type or a thiadiazole type compound is used.

Inorganic inhibitors include sodium bromide, potassium bromide, potassium iodide and the like. In addition, L.
F. A. Menson's "Photographic Processing Chemistry" published by Focal Press, Inc. (1966)
226-229, U.S. Pat. No. 2,193,015
No. 2,592,364, JP-A-48-64933.
You may use those described in No.

As a chelating agent for masking calcium ions mixed in tap water used in the treatment liquid, a chelating agent having a chelate stabilization constant with iron of 8 or more as an organic chelating agent described in JP-A No. 1-193853 is used. Is preferably used.

Examples of the inorganic chelating agent include sodium hexametaphosphate, calcium hexametaphosphate and polyphosphate.

As the development hardening agent, a dialdehyde compound may be used. In this case, glutaraldehyde is preferably used. However, for rapid processing, it is preferable that the hardener is allowed to act in advance in the coating step of the light-sensitive material by incorporating the hardener, as described above, rather than in the developing step.

The processing temperature of the developer is preferably 25 to 50.
C., more preferably 30 to 40.degree. The development time is preferably 1 to 30 seconds, more preferably 3 to 15 seconds. The processing time of the present invention is 10 to 10 in terms of Dry to Dry.
It is 45 seconds, but preferably 12 to 30 seconds.

In the present invention, the treatment liquid is replenished by replenishing the treatment agent fatigue and oxidative fatigue. As the replenishing method, replenishment by width and feed speed described in JP-A-55-126243, area replenishment described in JP-A-60-104946, and area replenishment controlled by continuous processing number described in JP-A-1-149156. However, the preferred supplement amount is 50
It is 0 to 150 ml / m ² .

Preferred fixing solutions can include fixing materials commonly used in the art. pH is 3.
It is 8 or more, preferably 4.2 to 5.5.

The fixing agent is a thiosulfate such as ammonium thiosulfate and sodium thiosulfate, and ammonium thiosulfate is particularly preferable from the viewpoint of the fixing speed. The concentration of ammonium thiosulfate is preferably in the range of 0.1 to 5 mol / liter, more preferably 0.8 to 3 mol / liter.

The fixing solution may be one that performs acid hardening. In this case, aluminum ions are preferably used as the hardener. For example, it is preferably added in the form of aluminum sulfate, aluminum chloride, potassium alum, or the like. If desired, the fixing solution may further include preservatives such as sulfite and bisulfite, pH buffers such as acetic acid and boric acid, and mineral acids (sulfuric acid, sulfuric acid,
Nitric acid), organic acids (citric acid, oxalic acid, malic acid, etc.), various acids such as hydrochloric acid, pH adjusters such as metal hydroxides (potassium hydroxide, sodium hydroxide), and chelating agents having water softening ability it can. Examples of fixing accelerators include JP-B-45-35754, JP-A-58-122535, and JP-A-5-225535.
Examples thereof include thiourea derivatives described in No. 8-122536 and thioethers described in US Pat. No. 4,126,459.

Further, a method of supplying a developer and / or a fixing agent as a solid processing agent to a processing tank of an automatic processor is also preferably used.

Here, the solid processing agent means a powder processing agent or a tablet,
Solid treatment agents such as pills and granules, which have been subjected to a moisture-proof treatment if necessary. The powder means an aggregate of fine crystal grains. Granules are obtained by adding a granulation step to powders, and are granular materials having a particle size of 50 to 5000 μm. A tablet refers to a powder or granules compression-molded into a given shape.

To solidify the photographic processing agent, the concentrated solution or fine powder or granular photographic processing agent and the water-soluble binder are kneaded and molded, or the surface of the temporarily molded photographic processing agent is mixed with the water-soluble binder. Arbitrary means, such as forming a coating layer by spraying, can be adopted (Japanese Patent Application No. 2-135887 and 2-2).
03165, 2-203166, 2-2031
67, ibid. 2-203168, ibid. 2-34009).

A preferable tablet manufacturing method is a method in which a solid processing agent in powder form is granulated and then a tableting step is performed to form the tablet. There is an advantage that the solubility and storage stability are improved and the photographic performance becomes stable as compared with a solid processing agent formed by a tableting step by simply mixing a solid processing agent component.

As the granulation method for tablet formation, known methods such as rolling granulation, extrusion granulation, compression granulation, crushing granulation, stirring granulation, fluidized bed granulation and spray drying granulation are used. Can be done.
In order to form tablets, the average particle size of the obtained granules is 100 to 800 μm in that when the granules are mixed and compressed under pressure, nonuniformity of the components, so-called segregation does not easily occur.
It is preferable to use the above-mentioned one, more preferably 200
˜750 μm.

Further, the particle size distribution is preferably such that 60% or more of the granulated particles have a deviation of ± 100 to 150 μm.
When compressing the obtained granulated product under pressure, a known compressor such as a hydraulic press, a single-shot tableting machine, a rotary tableting machine, or a preketching machine can be used.
The solid processing agent obtained by compression under pressure can have any shape, but from the viewpoint of productivity, handleability, or from the problem of dust when used on the user side, a cylindrical type, a so-called tablet is used. preferable.

More preferably, at the time of granulation, the above-mentioned effect becomes more remarkable by separately granulating each component, for example, an alkali agent, a reducing agent, a preservative and the like.

A method for producing a tablet processing agent is described in, for example, Japanese Patent Laid-Open No.
No. 1-61837, No. 54-155038, No. 52-
It can be produced by a general method described in the specifications such as 88025 and British Patent No. 1213808, and the granule treating agent is described in, for example, JP-A Nos. 2-109042 and 2-10904.
It can be produced by a general method described in the specifications such as No. 3, No. 3-39735 and No. 3-39739. Further, the powder processing agent can be produced by a general method as described in, for example, JP-A-54-133332, British Patents 725,892 and 729,862, and German Patent 3,733,861. .

The bulk density of the above solid processing agent is from 1.0 to
2.5 g / cm ³ is preferable, and when it is larger than 1.0 g / cm ³ , the strength of the obtained solid matter is more preferable, and when it is smaller than 2.5 g / cm ³ , the solubility of the obtained solid matter is more preferable. When the solid processing agent is granules or powder, the bulk density is 0.
It is preferably 40 to 0.95 g / cm ³ .

The solid processing agent is used as a photographic processing agent such as a developing agent, a fixing agent, a rinsing agent, etc., but it is the developing agent that has a great effect of stabilizing photographic performance.

The solid treating agent may be solidified only in a part of a certain treating agent, but preferably, all the components of the treating agent are solidified. It is desirable that each component be molded as a separate solid processing agent and packaged in the same manner.
It is also desirable that the individual components are packaged in the order in which they are periodically added repeatedly in a package.

It is preferable to add all the processing agents to be replenished to the respective processing tanks as solid processing agents according to the processing amount information.
When replenishment water is required, it is replenished based on the throughput information or other replenishment water control information. In this case, the liquid to be replenished in the processing tank can be only replenishing water. That is, when there are two or more types of processing tanks that need to be replenished, only one tank is required to store the replenishing liquid by sharing the replenishing water, and the automatic developing machine can be made compact. The replenishing water tank may be placed outside or may be built in the automatic developing machine, and it is preferable to install the replenishing water tank from the viewpoint of space saving.

In the case of solidifying the developer, it is preferable that all of the alkaline agent and the reducing agent are solid processing agents, and in the case of tablets, at least 3 agents or less, most preferably 1 agent. Is. When two or more agents are divided into solid processing agents, it is preferable that the plurality of tablets or granules be packed in the same package.

The filling rate of the phosphor in the phosphor layer of the radiation intensifying screen according to the present invention is 68% or more,
It is preferably 70% or more, more preferably 72% or more.

In the present invention, the thickness of the phosphor layer is 15
It is 0 μm or more and 250 μm or less. Here, if the thickness of the phosphor layer is less than 150 μm, the sharpness is sharply deteriorated.

The radiographic intensifying screen of the present invention is preferably filled with a phosphor in a gradient grain size structure. In particular, it is preferable to apply phosphor particles having a large particle size on the surface protective layer side and phosphor particles having a small particle size on the support side, and those having a small particle size are 0.5 to 2.0 μm. 10 to 30 for particles
The range of μm is preferred.

In the fluorescent intensifying screen used in the combination of the present invention, the X-ray absorption of each intensifying screen is 30% per 100 μm of the thickness of the phosphor layer by increasing the packing ratio of the phosphor particles. The above is preferable. The X-ray absorption amount was determined as follows. That is, an X-ray generated from a tungsten target operated at 80 KVP from an X-ray generator having an aluminum 2.2 mm equivalent intrinsic filtration with a three-phase power supply is transmitted through an aluminum plate having a thickness of 3 mm and a purity of 99% or more. Then, the target tube was made to arrive at a radiographic intensifying screen fixed at a position 200 cm from the tungsten anode, and then the X-ray absorption amount was measured at a position 50 cm after the phosphor layer of the radiographic intensifying screen using an ionization dosimeter. I asked. As a reference, the X-ray dose at the above-mentioned measurement position measured without passing through the intensifying screen was used.

The preferred binder used in the radiation intensifying screen of the present invention is a thermoplastic elastomer. Specifically, it is selected from the group consisting of polystyrene, polyolefin, polyurethane, polyester, polyamide, polybutadiene, ethylene vinyl acetate, polyvinyl chloride, natural rubber, fluororubber, polyisoprene, chlorinated polyethylene, styrene-butadiene rubber and silicone rubber. At least one thermoplastic elastomer may be mentioned.

The filling rate of the phosphor as referred to in the present invention can be obtained from the following formula from the porosity of the phosphor layer formed on the support.

[0196]

[Equation 1]

Preferred phosphors used in the radiation intensifying screen according to the present invention include those shown below.

Tungstate phosphor (CaWO4,
MgWO4, CaWO4: Pb, etc.), terbium-activated rare earth oxysulfide-based phosphor [Y2O2S: Tb, Gd2O
2S: Tb, La ₂ O ₂ S: Tb, (Y, Gd) ₂ O ₂ S:
Tb, Tm, etc.], terbium activated rare earth phosphate phosphor (YPO ₄ : Tb, GdPO ₄ : Tb, LaPO ₄ : Tb
Etc.), terbium-activated rare earth oxyhalide-based phosphors LaOBr: Tb, LaOBr: Tb. Tm, La
OCl: Tb, LaOCl: Tb. TmGdOBr: T
b, GdOCr: Tb), thulium-activated rare earth oxyhalide-based phosphor (LaOBr: Tm, LaOC)
l: Tm, etc.), a barium sulfate-based phosphor [BaSO ₄ :
Pb, BaSO ₄ : Eu ²⁺ , (Ba.Sr) SO ₄ : Eu
²⁺ etc.] Divalent eurobium-activated alkaline earth metal phosphate-based phosphor [Ba ₃ (PO ₄ ) ₂ : Eu ²⁺ , (Ba, S
_{r) 3, (PO 4)} 2: Eu 2 , etc.], divalent europium activated alkali earth metal fluoride halide phosphors [BaF
Cl: Eu ²⁺ , BaFBr: Eu ²⁺ , BaFCl: Eu
²⁺ . Tb, BaFBr: Eu ²⁺ . Tb, BaF ₂ . Ba
Cl ₂ . XBaSO ₄ . KCl: Eu ²⁺ , (Ba.Mg)
F ₂ . BaCl ₂ . KCl: Eu2 +, etc.], iodide-based phosphors (CSI: Na, CSI: Tl, NaI.KI:Tl
Etc.) Sulfide-based phosphor [ZnS: Ag, (Zn.Cd)
S: Ag, (Zn.Cd) S: Cu, (Zn.Cd)
S: Cu. Al, etc.], Hafnium phosphate-based phosphor (HfP
₂ O ₇ : Cu), but the phosphor used in the present invention is not limited to these, and any phosphor that emits light in the visible or near-ultraviolet region upon irradiation with radiation can be used.

[0199]

EXAMPLES The present invention will be described below with reference to examples, but the present invention is not limited thereto.

Example 1 Preparation of Em-1 (Comparative Emulsion) Em-1 was prepared as follows.

A1 Ocein gelatin 24.2 g Water 9657 ml Polypropyleneoxy-polyethyleneoxy-disuccinate sodium salt (10% ethanol aqueous solution) 6.78 ml Potassium bromide 10.8 g 10% nitric acid 114 ml B1 2.5N silver nitrate aqueous solution 2825 ml C1 Potassium bromide 841g Water 2825ml D1 1.75N Potassium bromide aqueous solution Silver potential control amount at 42 ° C Japanese Patent Publication Nos. 58-58288 and 58-5828
The solution B1 was added to the solution A1 using the mixing stirrer shown in No. 9.
And 464.3 ml of each of Solution C1 were added by the simultaneous mixing method over 1.5 minutes to perform nucleation.

After stopping the addition of the solution B1 and the solution C1, it took 60 minutes to raise the temperature of the solution A1 to 60 ° C., adjust the pH to 5.0 with 3% KOH, and then re-solution. B1 and solution C1 were each mixed by the simultaneous mixing method at 55.4.
It was added at a flow rate of ml / min for 42 minutes. The silver potential (measured with a silver ion selective electrode using a saturated silver-silver chloride electrode as a reference electrode) during the temperature increase from 42 ° C. to 60 ° C. and the re-simultaneous mixing with the solutions B1 and C1 was made + using the solution D1.
It was controlled to be 8 mV and +16 mV.

After completion of the addition, the pH was adjusted to 6 with 3% KOH, and desalting and washing with water were immediately performed.

Subsequently, after the emulsion was heated to 60 ° C.,
Spectral sensitizing dyes D-2 and D-15 are respectively 350 mg,
After adding 3 mg as a solid fine particle dispersion, a mixed aqueous solution of ammonium thiocyanate, chloroauric acid and sodium thiosulfate and a silver iodide fine grain emulsion are added, and further a methanol solution of triphenylphosphine selenide is added,
Aged for a total of 2 hours. At the end of the aging, an appropriate amount of 4-hydroxy-6-methyl-1,3,3a, 7-tetrazaindene (TAI) was added as a stabilizer.

Additives other than the spectral sensitizing dyes and their addition amounts (per mol of AgX) are shown below.

Ammonium thiocyanate 95 mg Chloroauric acid 12.5 mg Sodium thiosulfate 10.0 mg Silver iodide fine grain emulsion (average particle size 0.05 μm) 2 mmol Triphenylphosphine selenide 2.0 mg Stabilizer (TAI) 1000 mg Spectral increase A solid fine particle dispersion of a dye is disclosed in Japanese Patent Application No. 4-994.
It was prepared by a method similar to that described in No. 37.

That is, a predetermined amount of the spectral sensitizing dye was added to water whose temperature had been adjusted to 27 ° C. in advance, and a high-speed stirrer (dissolver) was used for 3.5
Obtained by stirring at 00 rpm for 30-120 minutes.

When the obtained silver halide emulsion was observed with an electron microscope, 90% or more of the total projected area was composed of hexagonal tabular grains having a maximum adjacent side ratio of 1.0 to 2.0, and the average grain size of the hexagonal tabular grains was The tabular silver halide grains had a diameter (converted to a circle diameter) of 0.595 μm, an average thickness of 0.064 μm, an average aspect ratio of 9.3, and a grain size distribution width of 18.1%.

Preparation of Em-2 A tabular silver iodochloride emulsion Em was prepared using the following three solutions.
-2 was prepared.

A2 low methionine gelatin 35.53 g sodium chloride 1.306 g potassium iodide 49.87 mg finished with water to 2030 ml B2 sodium chloride 1.737 g potassium iodide 49.80 mg finished with water to 30 ml C2 silver nitrate 5.096 g with water Finish to 30 ml D2 Sodium chloride 46.80 g Finish to 800 ml with water E2 Silver nitrate 135.90 g Finish to 800 ml with water Stir vigorously while keeping solution A2 at 40 ° C in the reaction vessel, and add the total amount of solution B2 and solution C2 there. The mixture was added by the simultaneous mixing method at a flow rate of 30 ml per minute over 1 minute. Meanwhile, p
Cl was kept at 1.95 throughout. The obtained core particles contained 2 mol% of iodine.

Next, after the mixed solution was kept at 40 ° C. for 10 minutes, the total amount of the solution D2 and the solution E2 was added by the simultaneous mixing method at a flow rate of 2 ml per minute for 40 minutes. During this time, pC
l kept at 1.95 throughout.

Immediately after the completion of addition, desalting and washing with water were performed.
Subsequently, this emulsion was ripened in the same manner as Em-1.

When the obtained silver halide emulsion was observed with an electron microscope, 50% or more of the total projected area had an adjacent edge ratio of 1 or more.
It is composed of right-angled parallelogrammatic tabular grains of less than 0, and the average particle size (converted to a circle diameter) of the right-angled parallelogrammatic tabular grains is 0.84μ.
m, average thickness 0.037 μm, average aspect ratio 2
3, tabular silver halide grains having a wide grain size distribution of 18.1%.

The details of the emulsion thus obtained are shown below.

[0215]

[Table 1]

The following additives were added to the obtained emulsion to prepare an emulsion layer coating solution. At the same time, a protective layer coating solution described below was also prepared. Using both coating solutions, two slide hopper type coaters were used so that the coated amount was 1.6 g / m ² per side and the amount with gelatin was 2.7 g / m ²
Simultaneous coating on both sides on a support at a speed of 0 m, followed by drying for 2 minutes and 20 seconds, and sample No. 1-No. 2 was obtained. Glycidimethacrylate 50 wt%, methyl acrylate 10 wt%, butyl methacrylate 40 wt
%, The concentration of the copolymer consisting of three kinds of monomers is 10 wt%
A polyethylene terephthalate film base colored blue with a concentration of 0.15 for a 175 μm X-ray film was used as an undercoating solution of the copolymer aqueous dispersion obtained by diluting the resulting solution.

The additives used in the emulsion are as follows.
The amount of addition is shown in an amount per mole of silver halide.

1,1-Dimethylol-1-bromo-1-nitromethane 70 mg t-butyl-catechol 400 mg Polyvinylpyrrolidone (molecular weight 10,000) 1.0 g Styrene-maleic anhydride copolymer 2.5 g Nitrophenyl-triphenyl Phosphonium chloride 50 mg 1,3-dihydroxybenzene-4-sulfonic acid ammonium 2 g

[0219]

[Chemical 21]

C ₄ H ₉ OCH ₂ CH (OH) CH ₂ N (CH ₂ COOH) ₂ 1 g 1-phenyl-5-mercaptotetrazole 15 mg Protective Layer Solution Next, the following coating solution for the protective layer was prepared. The additive is shown in the amount per liter of coating liquid.

Lime-treated inert gelatin 68 g Acid-treated gelatin 2 g Sodium-i-amyl-n-decylsulfosuccinate 1 g Polymethylmethacrylate (matting agent having an area average particle size of 3.5 μm) 1.1 g Silicon dioxide particles (area average particles) Matting agent having a diameter of 1.2 μm) 0.5 g (CH ₂ = CHSO ₂ CH ₂ ) ₂ O (hardening agent) 500 mg C ₄ F ₉ SO ₃ K 2 mg C ₁₂ H ₂₅ CONH (CH ₂ CH ₂ O) ₅ H 2.0 g

[0222]

[Chemical formula 22]

Obtained sample No. 1 and No. Photographic properties of 2 were evaluated. First, sample the two screens (KO-2
50) and a tube voltage of 80kV via an aluminum wedge.
p, tube current 100 mA, X-ray irradiation for 0.05 seconds,
Exposed. Then, using an automatic developing machine (SRX-502) (manufactured by Konica Corporation), processing was performed with a developing solution and a fixing solution having the following formulations.

Developer Formulation Part-A (for 12 l finishing) Potassium hydroxide 450 g Potassium sulfite (50% solution) 2280 g Diethylenetetraamine 5 acetic acid 120 g Sodium bicarbonate 132 g 5-Methylbenzotriazole 1.2 g 1-Phenyl-5 -Mercaptotetrazole 0.2 g Hydroquinone 340 g Add water to finish to 5000 ml Part-B (for 12 l finishing) Glacial acetic acid 170 g Triethylene glycol 185 g 1-Phenyl-3-pyrazolidone 22 g 5-Nitroindazole 0.4 g Starter glacial acetic acid 120 g Odor Potassium iodide 225 g Add water to finish to 1.0 l Fixer formulation Part-A (for 18 l finish) Ammonium thiosulfate (70 wt / vol%) 6000 g Sodium sulfite 110 g Sodium acetate trihydrate 450 g Sodium citrate 50 g Gluconic acid 70 g 1- (N, N-Dimethylamino) -ethyl-5-mercaptotetrazole 18 g Part-B Aluminum sulphate 800 g The developer is prepared by adding Part A to water 5 l. Part B was added at the same time, water was added while stirring and dissolving, and the solution was adjusted to 12 l and the pH was adjusted to 10.40 with glacial acetic acid. This is used as a development replenisher. 20 ml / l of the above-mentioned starter was added to 1 liter of this development replenisher to adjust the pH to 10.26 to prepare a working solution.

The fixing solution was prepared by adding Part A and P to about 5 liters of water.
ArtB is added simultaneously, and water is added while stirring and dissolving.
The pH was adjusted to 4.4 with sulfuric acid and NaOH. This is the fixing replenisher.

The processing temperature is 35 ° C. for development, 33 ° C. for fixing, 20 ° C. for water washing, 50 ° C. for drying, and the processing time is dry.
It is 45 seconds and 25 seconds in to dry.

After the processing, the sensitivity was measured and the fixability was evaluated. The sensitivity is represented by the reciprocal of the exposure amount that gives a density of fog + 0.5, and is represented by the relative sensitivity when the sensitivity of the sample No. 1 for 45 seconds is 100. The fixability was evaluated by visually observing the transparency of the unexposed film after processing for 25 seconds, and evaluated in the following three stages.

◯: No problem Δ: Slightly inferior fixing property (sometimes problematic in practical use) ×: Inferior fixing property (outside acceptable for practical use) Next, each sample was stored for 7 days under the following two conditions. did.

Condition A: 23 ° C., 55% RH Condition B: 40 ° C., 80% RH After storage, the same exposure and development processing as the above processing was performed, and the sensitivity was measured after the processing. For each sample, the difference in sensitivity between condition A and condition B was determined, and the sample No. It is shown as a relative value when the sensitivity difference of 1 is 100. The smaller the value is, the smaller the fluctuation is, which means that the value is excellent.

The results obtained above are shown in Table 2 below.

[0231]

[Table 2]

As is apparent from the table, the sample of the present invention has a high sensitivity, does not impair the sensitivity even in an ultra-rapid processing of 25 seconds, and has no problem in fixing property.

Further, it can be seen that the sample of the present invention is also excellent in the storage stability test.

Example 2 Preparation of Em-3 (Comparative Emulsion) (Preparation of Seed Emulsion) Seed Emulsion-1 was prepared as follows.

A3 ossein gelatin 24.2 g water 9657 ml polypropyleneoxy-polyethyleneoxy-disuccinate sodium salt (10% ethanol aqueous solution) 6.78 ml potassium bromide 10.8 g 10% nitric acid 114 ml B3 2.5N silver nitrate aqueous solution 2825 ml C3 Potassium bromide 841 g Water 2825 ml D3 1.75N potassium bromide aqueous solution The following silver potential control amount at 42 ° C. Japanese Patent Publication Nos. 58-58288 and 58-5828.
Solution B3 was added to Solution B3 using the mixing stirrer shown in No. 9.
And 464.3 ml of each of Solution C3 were added by the simultaneous mixing method over 1.5 minutes to perform nucleation.

After stopping the addition of solution B3 and solution C3, it took 60 minutes to raise the temperature of solution A3 to 60 ° C., adjust the pH to 5.0 with 3% KOH, and then re-solution. B3 and solution C3 were each mixed by the simultaneous mixing method at 55.4.
It was added at a flow rate of ml / min for 42 minutes. The silver potential (measured with a silver ion selective electrode using a saturated silver-silver chloride electrode as a reference electrode) during the temperature increase from 42 ° C. to 60 ° C. and the re-simultaneous mixing with the solutions B3 and C3 was made + using the solution D3, respectively.
It was controlled to be 8 mV and +16 mV.

After completion of the addition, the pH was adjusted to 6 with 3% KOH, and desalting and washing with water were immediately performed. In this seed emulsion, 90% or more of the total projected area of silver halide grains is composed of hexagonal tabular grains having a maximum adjacent side ratio of 1.0 to 2.0. The hexagonal tabular grains have an average thickness of 0.064 μm and an average grain size of 0.064 μm. Diameter (circle diameter conversion)
Was confirmed to be 0.595 μm with an electron microscope. The variation coefficient of thickness was 40%, and the variation coefficient of distance between twin planes was 42%.

Subsequently, tabular pure silver bromide emulsion Em-3 was prepared using seed emulsion-1 and the following three kinds of solutions.

A4 ossein gelatin 34.03 g polypropyleneoxy-polyethyleneoxy-disuccinate sodium salt (10% ethanol aqueous solution) 2.25 ml seed emulsion-1 1.218 mol equivalent Equal to 3150 ml with water B4 potassium bromide 1747 g water The solution A4 was vigorously stirred in a reaction vessel while the temperature was kept at 60 ° C., and the total amount of the solution B4 and the solution C4 was added thereto by the simultaneous mixing method over 100 minutes. During this time, the pH was 5.8 and p
Ag was kept at 8.8 throughout. Here, solution B4 and solution C
The addition rate of 4 was changed function-wise with respect to time so as to be commensurate with the critical growth rate. That is, the addition was performed at an appropriate addition rate so that small particles were not generated other than the growing seed particles and polydispersion did not occur due to Ostwald ripening.

After the addition is complete, the emulsion is cooled to 40.degree.
As an aggregating polymer agent, 1800 ml of a 13.8% (weight) modified gelatin aqueous solution modified with a phenylcarbamoyl group (substitution rate 90%) was added and stirred for 3 minutes. afterwards,
A 56% (weight) aqueous acetic acid solution was added to adjust the pH of the emulsion to 4.6, the mixture was stirred for 3 minutes, allowed to stand for 20 minutes, and the supernatant was drained by decantation.

Then, 9.0 l of distilled water at 40 ° C. was added, and the mixture was left to stir, and the supernatant was drained. Further, 11.25 l of distilled water was added, and the mixture was left standing with stirring, and then the supernatant was drained. Subsequently, an aqueous gelatin solution and an aqueous 10% sodium carbonate solution (by weight) were added to adjust the pH to 5.80, and the mixture was stirred at 50 ° C. for 30 minutes and redispersed. After redispersion, the pH was adjusted to 5.8 at 40 ° C
0, pAg was adjusted to 8.06.

Subsequently, after the emulsion was heated to 60 ° C.,
Spectral sensitizing dyes D-3 and D-16 were added at 50 mg and 3 respectively.
After adding 00 mg as a solid fine particle dispersion, a mixed aqueous solution of ammonium thiocyanate, chloroauric acid and sodium thiosulfate and a silver iodide fine particle emulsion triphenylphosphine selenide solid fine particle dispersion are added, and aging is carried out for a total of 2 hours. Was applied. As a stabilizer at the end of aging (TA
The appropriate amount of I) was added.

Additives other than the spectral sensitizing dye and their addition amounts (per mol of AgX) are shown below.

Ammonium thiocyanate 95 mg Chloroauric acid 2.5 mg Sodium thiosulfate 2.0 mg Silver iodide fine grain emulsion (average particle size 0.05 μm) 2 mmole Triphenylphosphine selenide 0.4 mg Stabilizer (TAI) 1000 mg Spectroscopy A solid fine particle dispersion of a sensitizing dye is disclosed in Japanese Patent Application No. 4-99.
It was prepared by a method similar to the method described in No. 437. That is, it was obtained by adding a predetermined amount of the spectral sensitizing dye to water whose temperature had been adjusted to 27 ° C. in advance, and stirring the mixture with a high-speed stirrer (dissolver) at 3.500 rpm for 30 to 120 minutes.

When the obtained silver halide emulsion was observed with an electron microscope, the average grain size was 1.11 μm and the average thickness was 0.2.
5 μm, average aspect ratio of about 4.5, width of particle size distribution 1
It was 8.1% of tabular silver halide grains. The average distance between twin planes was 0.020 μm.

Preparation of Em-4 A tabular silver iodochloride emulsion Em was prepared using the following three solutions.
-4 was prepared.

A4 low methionine gelatin 214.37 g sodium chloride 1.995 g potassium iodide 149.6 mg with water to make 6090 ml B4 sodium chloride 10.48 g potassium iodide 149.4 g with water to make 90 ml C4 silver nitrate 30.58 g with water Finish to 90 ml D4 Sodium chloride 165.0 g Finish to 5640 ml with water E4 Silver nitrate 479.0 g Finish to 5640 ml with water Stir solution A4 vigorously while keeping the temperature at 40 ° C in the reaction vessel, and add the total amount of solution B4 and solution C4 thereto. 180 ml per minute
Was added by the simultaneous mixing method at a flow rate of 30 seconds. Next, after keeping this mixed solution at 40 ° C. for 10 minutes, the solution D4 and the solution E4 were added by the simultaneous mixing method at a flow rate of 24 ml per minute over 40 minutes, and then the remaining total amount of the solution D4 and the solution E4 was initialized. The flow rate was linearly increased so that the flow rate was 24 ml and the final flow rate was 48 ml, and the addition was performed by the simultaneous addition method over 130 minutes. During this time, pCl was kept at 2.35 throughout. Thereafter, the pCl was adjusted to 1.30 with sodium chloride, the pCl was adjusted to 2.0 using an ultrafiltration membrane, and sodium chloride was further added to adjust the pCl to 1.65.

Subsequently, this emulsion was ripened in the same manner as Em-1. The obtained silver halide emulsion contained 0.06 mol% iodide, and when observed by an electron microscope, the average grain size (converted to a circle diameter) was 1.45 μm, the average thickness was 0.13 μm, and the average aspect ratio was 11 Was a right-angled parallel four-plate silver halide grain.

The details of the emulsion thus obtained are shown in Table 3 below.

[0250]

[Table 3]

Using the resulting emulsion, in the same manner as in Example 1, coated sample No. 3 and No. Created 4.
The results of evaluating this sample in the same manner as in Example 1 are shown in Table 4 below.

[0252]

[Table 4]

As is clear from Table 4, the samples of the present invention are
It can be seen that the sensitivity is high and the sensitivity is not impaired even in rapid processing such as 25 seconds. Further, it can be seen that there is no problem in fixing property and storage property is excellent.

Example 3 Using the emulsions Em-3 and Em-4 prepared in Example 2,
Applied sample No. 5, No. Created 6.

The following additives were added to the obtained emulsion to prepare an emulsion layer coating solution. At the same time, a dye layer coating solution and a protective layer coating solution described below were also prepared. Three coating solutions were used to form the first dye layer, the second emulsion layer and the third protective layer, and the coating amount was such that the amount of silver per side was 1.6 g / m ² and the amount of gelatin attached was Two slide hopper type coaters were used to achieve 2.7 g / m ² and both surfaces were simultaneously coated on the support at a speed of 80 m / min.
5-No. Got 6. As the support, a copolymer aqueous dispersion obtained by diluting the copolymer consisting of three types of monomers of glycidyl methacrylate 50 wt%, methyl acrylate 10 wt% and butyl methacrylate 40 wt% to 10 wt% A blue-colored polyethylene terephthalate film base having a concentration of 0.15 for a 175 μm X-ray film was used as the drawing liquid.

The additives used in the emulsion are as follows.

First Layer (Dye Layer) Solid Fine Particle Dispersion Dye (AH) 180 mg / m ² Gelatin 0.2 g / m ² Sodium Dodecylbenzenesulfonate 5 mg / m ² Compound (I) 5 mg / m ² 2,4- Dichloro-6-hydroxy-1,3,5-triazine sodium salt 5 mg / m ² colloidal silica (average particle size 0.014 μm) 10 mg / m ² Second layer (emulsion layer) Each of the emulsions obtained above was prepared as follows. Various additives were added.

Compound (G) 0.5 mg / m ² 2,6-bis (hydroxyamino) -4-diethylamino-1,3,5-triazine 5 mg / m ² t-butyl-catechol 130 mg / m ² polyvinylpyrrolidone ( Molecular weight 10,000) 35 mg / m ² Styrene-maleic anhydride copolymer 80 mg / m ² Sodium polystyrene sulfonate 80 mg / m ² Trimethylolpropane 350 mg / m ² Diethylene glycol 50 mg / m ² Nitrophenyl-triphenyl-phosphonium chloride 20 mg / M ² 1,3-dihydroxybenzene-4-sulfonic acid ammonium salt 500 mg / m ² 2-mercaptobenzimidazole-5-sulfonic acid sodium salt 5 mg / m ² compound (H) 0.5 mg / m ² n-C ₄ H _{9 OCH 2 CH (OH) CH 2} N _{CH 2 COOH) 2 350mg / m} 2 Compound (M) 5 mg / m ² Compound (N) 5 mg / m ² Colloidal silica 0.5 g / m ² Latex (L) 0.2 g / m ² Dextrin (average molecular weight 1000) 0 .2g / m ^2, however, was adjusted to 1.0 g / m ² as gelatin.

Third Layer (Protective Layer) Gelatin 0.8 g / m ² 4-Hydroxy-6-methyl-1,3,3a, 7-tetrazaindene Amount shown in Table 3 Matting agent consisting of polymethylmethacrylate (area Average particle size 7.0 μm) 50 mg / m ² formaldehyde 20 mg / m ² 2,4-dichloro-6-hydroxy-1,3,5-triazine sodium salt 10 mg / m ² bis-vinylsulfonylmethyl ether 36 mg / m ² Latex (L) 0.2 g / m ² polyacrylamide (average molecular weight 10000) 0.1 g / m ² sodium polyacrylate 30 mg / m ² polysiloxane (SI) 20 mg / m ² compound (I) 12 mg / m ² compound ( J) 2mg / m ² compound (S-1) 7mg / m 2 compound (K) 15mg / m ² compound (O) 50mg / m ² of Objects (S-2) 5mg / m 2 C 9 F 19 -O- (CH 2 CH 2 O) 11 -H 3mg / m 2 C 8 F 17 SO 2 N- (C 3 H 7) (CH 2 CH 2 ^{_{O) 15 -H 2mg / m 2}} C 8 F 17 SO 2 N- (C 3 H 7) (CH 2 CH 2 O) 4 - (CH 2) 4 SO 3 Na 1mg / m 2

[0260]

[Chemical formula 23]

[0261]

[Chemical formula 24]

[0262]

[Chemical 25]

The obtained sample No. 5-No. 6 was used and the same evaluation as in Example 1 was performed. Further sharpness (CT
F) was evaluated as follows. After the development process, the area with an optical density of 1.0 was measured with an aperture of 30 μm × 500 μm, and the spatial frequency was 1.0 cycle / mm CT.
The F value was measured, and the sample No. It was shown as a relative value when 5 was set to 100. The results are shown in Table 5 below.

[0264]

[Table 5]

As is apparent from the table, the sample of the present invention has high sensitivity, and it is understood that the sensitivity is not impaired even in rapid processing such as 25 seconds. Further, it can be seen that there is no problem with the fixing property and the storage property is excellent. Furthermore, the sharpness was also excellent.

Example 4 Production of Screen 1 Phosphor Gd ₂ O ₂ S: Tb (average particle size 1.8 μm) 200 g Binder polyurethane-based thermoplastic elastomer Demolac TPKL-5-2625 <solid content 40%> (Sumitomo Bayer) Urethane Co., Ltd.) 20 g nitrocellulose (digestibility 11.5%) 2 g was added to a methyl ethyl ketone solvent and dispersed by a propeller mixer to prepare a coating liquid for forming a phosphor layer having a viscosity of 25 PS (25 ° C.). (Binder / phosphor ratio = 1/22) Separately, 90 g of a soft acrylic resin solid content and 50 g of nitrocellulose as a coating liquid for forming an undercoat layer are added to methyl ethyl ketone, dispersed and mixed to have a viscosity of 3 to 6 PS (25
C) dispersion was prepared.

Thickness of 250 μm in which titanium dioxide is kneaded
Polyethylene terephthalate (support) was placed horizontally on a glass plate, the above coating solution for forming the undercoat layer was uniformly applied on the support using a doctor blade, and then gradually raised from 25 ° C to 100 ° C. The coated film was dried to form an undercoat layer on the support. (Thickness of coating film: 15 μm) The above coating liquid for forming a phosphor layer was uniformly applied thereon by a doctor blade to a thickness of 240 μm, dried, and then compressed. Compress using a calender roll 30
It was carried out at a thickness of 0 kgW / cm ² and a temperature of 80 ° C. After this compression, a transparent protective film having a thickness of 3 μm was formed by the method described in Example 1 of JP-A-6-75097.

The characteristics of the obtained screen are as follows: phosphor thickness 1
60 μm, phosphor filling rate 68%, sharpness (CTF) 48
%Met.

Here, the sharpness means a medical imaging film SR-IC (manufacturing number 8) (manufactured by Konica Corporation).
379, expiration date 1995.12) Single-sided photosensitive material using single-pack method (only on the side opposite to X-ray radiation side), the emulsion side of SR-IC is attached to the fluorescent intensifying screen Then, the following measurements were made and obtained.

Measurement of Modulation Transfer Function (CTF) An MRE single-sided photosensitive material manufactured by Eastman Kodak Co. was placed in contact with an intensifying screen to be measured, and a rectangular chart for MTF measurement (made of molybdenum, thickness: 80 μm, spatial frequency) : 0 lines / mm to 10 lines / mm) were photographed. The chart was placed 2 m from the X-ray tube, the photosensitive material was placed in front of the X-ray source, and then the intensifying screen was placed. The X-ray tube used was a DRX-3724HD (Toshiba [Co.]] tungsten target, with a focal spot size of 0.6 mm × 0.6 mm, and X-rays were generated through a 3 mm aluminum equivalent material including the diaphragm. It is a thing.

A voltage of 80 kVp was applied to the three phases with a pulse generator, and an X-ray that passed through a filter of 7 cm of water having absorption almost equivalent to that of the human body was used as a light source. For the light-sensitive material after photographing, a measurement sample was prepared under the development processing conditions described below.

The exposure amount at the time of the above X-ray photography was adjusted so that the average value of the maximum density and the minimum density after the development processing was 1.0. Next, the measurement sample was operated with a microdensitometer. At this time, a concentration profile was measured at a sampling interval of 30 μm using a slit having an operating direction of 30 μm and a vertical direction of 500 μm.

This operation was repeated 20 times to calculate the average value, which was used as the concentration profile on which CTF was calculated. Thereafter, the density contrast for each frequency of this density profile was calculated. The above value is spatial frequency 3 lines / m
It is the value measured for m.

Sample No. 1 prepared in Example 3 using the screen 1 5-No. Photographic properties of 6 were evaluated. The evaluation was performed in exactly the same manner as in Example 1 except that the screen in Example 1 was changed to screen 1. Further, the sharpness (CTF) was evaluated as follows. The area where the optical density after development was 1.0 was measured with an aperture of 30 μm × 500 μm, and the spatial frequency was 1.0 cycle / mm.
CTF value of the sample No. It was shown as a relative value when 5 was set to 100. The results obtained are shown in Table 6 below.

[0275]

[Table 6]

It can be seen that the sample of the present invention has high sensitivity and does not impair the sensitivity even in rapid processing such as 25 seconds. Further, it can be seen that there is no problem in fixing property and the sharpness is also excellent.

Example 5 Spectral sensitizing dye D- in the preparation of Em-1 and Em-2
2, D-15 changed to D-28, D-29, Em-
5 and Em-6 were created.

Using the obtained emulsion, the coated sample No. 7, No. 8 was created.

(Backing Layer) Backing Lower Layer Coating Liquid Gelatin 400 g i-amine-n-decylsulfosuccinate sodium 0.4 g antihalation dye (1) 10 g potassium polystyrene sulfonate (average molecular weight 150,000) 50 g diethylene glycol 5.0 g glyoxal 2.0g Dye emulsion dispersion (with the following contents) 33g

[0280]

[Chemical formula 26]

Make up to 7 liters with water.

(Preparation Method of Dye Emulsion Dispersion) 10 kg of the following dye was dissolved in a solvent consisting of 28 l of tricresyl phosphate and 85 l of ethyl acetate at 55 ° C. This is called an oil-based solution. On the other hand, anionic surfactant (AS)
270 l of a 9.3% gelatin aqueous solution containing 1.35 Kg of
Was prepared. This is called an aqueous solution. Next, the oil-based solution and the aqueous solution were placed in a dispersion pot and dispersed while keeping the liquid temperature at 40 ° C. Phenol and 1,1 'were added to the resulting dispersion.
-A proper amount of dimethylol-1-bromo-1-nitromethane was added to make 240 kg with water.

[0283]

[Chemical 27]

Backing upper layer coating liquid Gelatin 400 g i-amyl-n-decylsulfosuccinate sodium salt 10 g Antihalation dye (1) 10 g Polymethylmethacrylate (average particle size 6 μm) 12 g SAM-1 3.0 g SAM-2 0.0. 75g C8F17SO3K 0.3g Glyoxal 13.6g

[0285]

[Chemical 28]

Make up to 7 liters with water.

Red-Sensitive Silver Halide Emulsion Layer Coating Solution A red-sensitive silver halide emulsion coating solution was prepared by adding the following to each of the above emulsions Em-5 and Em-6 per mol of silver halide.

Trimethylolpropane 10 g Nitrophenyl-triphenylphosphonium chloride 50 mg 1,3-Dihydroxybenzene-4-sulphonic acid ammonium 1 g 2-Mercaptobenzimidazole-5-sodium sulphonate 10 mg 1,1-Dimethylol-1-bromo- 1-Nitromethane 10 mg Polystyrene potassium sulfonate (average molecular weight 150,000) 10 g

[0289]

[Chemical 29]

Emulsion side protective layer coating solution The following addition amounts are shown per 1 m ² of film.

Lime-treated inert gelatin 0.8 g i-amyl-n-decylsulfosuccinate sodium 27 mg Polymethylmethacrylate (average particle diameter 3 μm) The amount of matting degree shown in Table 1 was added to silicon dioxide particles (area average particle diameter 1 0.2 μm) 10 mg Ludox AM (colloidal silica [Dupont]) 50 mg 2-4-dichloro-6-hydroxy-1,3,5-triazine sodium (2% aqueous solution) 5 mg formalin (35%) 10 mg glyoxal (40%) ) 40 mg (formalin and glyoxal are added in an amount of 1: 1 by weight to give the melting time shown in Table 1) Topside 300 (manufactured by Permchem Asia Ltd.) 1 mg SAM-1 20 mg SAM-2 7.7 mg

[0292]

[Chemical 30]

Preparation of Support After a biaxially stretched heat set on both surfaces of a polyethylene terephthalate support having a thickness of 180 μm, corona discharge treatment was performed.
A latex for undercoating (Compound of Synthesis Example 1) described in Example 1 of JP-A-59-18945 was coated thereon.

Then, on one surface of the upper layer, the following compounds described in JP-A No. 4-80744 by the same applicant as the present invention were coated as an antistatic layer.

Water-soluble conductive polymer (Ex. P6) 0.6 g / m ² Hydrophobic polymer (Ex. HL-1) 0.5 g / m ² Curing agent (Ex. AH5) 2 × 10 ⁻³ mol / dm ² After coating with a roll-fit coating pan and an air knife at a speed of 30 m / min, activation treatment by corona discharge was performed again in the same manner as above to obtain a support.

Coating of Sample On the side of the support thus obtained which is not coated with an antistatic layer, an emulsion coating solution containing the above-mentioned silver halide emulsions Em-5 and Em-6 and a coating solution for the emulsion surface protective layer are coated. did.

Further, the backing lower layer and the upper layer described above were coated on the surface side coated with the antistatic layer.

The amount of gelatin in the backing layer was 1.5 in the lower layer.
Simultaneous coating was carried out by the slide hopper method so that the upper layer was g / m ² and the upper layer was 0.9 g / m ² . The obtained sample No. 7-N
o. The results of the same evaluations as in Example 1 were shown in Table 7 below.

[0299]

[Table 7]

It can be seen that the sample of the present invention has high sensitivity and does not impair the sensitivity even in rapid processing such as 25 seconds.
Further, it can be seen that there is no problem in fixing property and storage property is excellent.

Example 6 In the preparation of Em-4, after adding all of Solution D4 and Solution E4, an aqueous solution containing 17.8 g of sodium bromide was added over 10 minutes. Thereafter, the same treatment as for Em-4 was carried out to obtain Em-7. Using the obtained silver halide emulsions Em-3 and Em-7, the coated silver amount was 1.
Application sample No. 4 was carried out in exactly the same manner as in Example 3 except that the amount was 4 g / m ² . No. 9 and No. 10 were created.

The obtained sample No. 9 and No. 10 was used to evaluate the photographic performance. First, the sample was sandwiched between two screens (KO-250 manufactured by Konica Corporation), and a tube voltage of 80 kvp and a tube current of 100 mA were passed through an aluminum wedge.
It was exposed by irradiation with X-ray for 0.05 seconds.

Next, an automatic processor (Konica Corp. SR.
X-502) was partially modified so that the processing speed was variable, and processing was performed with a developing solution and a fixing solution having the following formulations using an automatic developing machine to which a device for inserting tablets described below was added. The following operations (A,
Tablets for developing replenishment were prepared according to B).

Operation (A) 3000 g of hydroquinone as a developing agent is ground in a commercially available bandam mill until the average particle size becomes 10 μm. 3000g of sodium sulfite and 20g of potassium sulfite in this fine powder
00g and Dimezone S1000g were added and mixed in a mill for 30 minutes, and then in a commercial stirred granulator at room temperature for about 10 minutes, 3
After granulating by adding 0 ml of water, the granulated product is dried in a fluidized bed dryer at 40 ° C. for 2 hours to almost completely remove the water content of the granulated product. 100 g of polyethylene glycol 6000 was added to 25 g of the granules thus prepared.
After uniformly mixing for 10 minutes using a mixer in a room controlled to 40 ° C. and 40% RH or less, one tablet of the resulting mixture was prepared using a tableting machine modified from Tough Pressed Collect 1527HU manufactured by Kikusui Seisakusho. The compression amount was adjusted to a filling amount of 3.84 g per tablet to prepare 2500 replenishing tablet A agents.

Operation (B) DTPA 100 g, potassium carbonate 4000 g, 5-methylbenzotriazole 10 g, 1-phenyl-5-mercaptotetrazole 7 g, 2-mercaptohypoxanthine 5 g, KOH 200 g, N-acetyl-D, L-penicillamine were operated. It grind | pulverizes and granulates like (A). The amount of water added was 30.0 ml, and after granulation, the granulated product was dried for 30 minutes at 50 ° C. to almost completely remove water. The mixture thus obtained was compressed into tablets by the above-mentioned tableting machine at a filling amount of 1.73 g per tablet to prepare 2500 replenishing tablet B agents.

Next, fixing replenishing tablets were prepared by the following procedure.

Operation (C) Ammonium thiosulfate / sodium thiosulfate (70/3
0 weight ratio) 14000 g, sodium sulfite 1500 g
Is pulverized in the same manner as in (A), and then uniformly mixed with a commercially available mixer. Then, add 500 ml of water in the same manner as in (A).
And granulate. After the granulation, the granulated product is dried at 60 ° C. for 30 minutes to almost completely remove the water content of the granulated product. 4 g of sodium N-lauroylalanine is added to the granulated product thus prepared, and mixed for 3 minutes using a mixer in a room where the humidity is controlled to 25 ° C. and 40% RH or less. Next, the mixture thus obtained was filled in a tableting machine as described above at a filling amount of 6.
The tablets were compressed to 202 g and compressed to form 2,500 fixing replenishment tablets C preparation.

Operation (D) 1000 g of boric acid, 150 parts of aluminum sulfate and 18 hydrates
0 g, sodium hydrogen acetate (dried by mixing glacial acetic acid and sodium acetate in equal moles) 3000 g, tartaric acid 200
Then, g is pulverized and granulated in the same manner as in the operation (A). The amount of water added is 100 ml, and after granulation, the granules are dried for 30 minutes to almost completely remove the water content.

To the thus-prepared product, 4 g of sodium N-lauroylalanine was added, and the mixture was mixed for 3 minutes. The mixture thus obtained was adjusted to have a filling amount of 4.562 g per tablet by the above tableting machine. Compressed and compressed, 1250
Individual fixing replenishment tablets D preparations were prepared.

Starter for Developer Glacial acetic acid 2.9 KBr 4.0 g Water is added to make 1 liter.

A developing tank was filled with a developing solution (16.5 liters) prepared by diluting developing tablets with diluting water, and a developing tank was filled in the developing tank for processing.

[0312] At the time of starting the processing of the developing solution (starting running), the developing tank was filled with a solution prepared by adding 330 ml of a starter to 16.5 liters of the developing solution prepared by diluting the developing tablet with diluting water to start the processing. The pH of the developer containing the starter was 10.45.

The light-sensitive material prepared above was exposed to light so that the optical density after development was 1.0, and was run. For running, an automatic processor SRX-502 (manufactured by Konica Corporation) equipped with a solid processing agent charging member and modified so that the processing speed could be adjusted was used.

During the running, the developing solution contained a light-sensitive material of 0.6.
It was carried out by adding 2 each of the above-mentioned agents A and B and 76 ml of water per 2 m ² . When each of A and B was dissolved in 38 ml of water, the pH was 10.70. The fixing solution contains a light-sensitive material 0.
Each 62 m ^{2 of the} above C agent, 1 D agent and 7 water
4 ml was added. The rate of water addition to each of the treatment agents was started almost at the same time as the addition of the treatment agent, and was added at a constant rate for 10 minutes in proportion to the dissolution rate of the treatment agent.

[0315] After running until the processing level reached an equilibrium state (about 2,000 sheets in quarters), the fixability and development unevenness were evaluated. The evaluation was carried out by uniformly exposing each sample of 35 cm × 43 cm to a density of 1.0, and then performing the above-mentioned development processing, and the processed film was visually evaluated according to the following four-step evaluation levels.

⊚: No unevenness was observed at all ◯: Some unevenness was observed at Δ: Some unevenness was recognized at all: Unevenness was observed on the entire surface The results obtained are shown in Table 8 below.

[0317]

[Table 8]

As is clear from Table 8, the sample of the present invention uses a solid processing agent, has high sensitivity even in rapid processing of 15 seconds, has no problem in fixing property, and has no problem in uneven development. I understand.

Example 7 Sample No. prepared in Example 6 9 and No. 10, the developing solution was changed to the developing solution having the following formulation, and the photographic performance was evaluated.

Operation (A) 1300 g of erythorbic acid as a developing agent is pulverized in a commercially available bandam mill until the average particle size becomes 10 μm. 1528 g of sodium sulfite and 1150 of phenidone in this fine powder
g and DTPA (975 g) were added and mixed in a mill for 30 minutes, and granulated by adding 30 ml of water in a commercially available stirring granulator at room temperature for about 10 minutes, and then the granulated product was dried in a fluidized bed dryer. The granulated product is dried at 40 ° C. for 2 hours to almost completely remove water. 1300 g of polyethylene glycol 6000 was added to the granules thus prepared,
300 g of the mixture was uniformly mixed for 10 minutes by using a mixer in a room whose humidity was adjusted to 25 ° C. and 40% RH or less, and the resulting mixture was toughly pressed to collect 15 by Kikusui Seisakusho.
Using a tableting machine modified from 27HU, the filling amount per tablet was adjusted to 7.683 g, and compression tableting was carried out to prepare 2,500 development-supplementing tablet A agents.

Operation (B) 16250 g of potassium carbonate, 65 g of 5-methylbenzotriazole, 32.5 g of 1-phenyl-5-mercaptotetrazole, N-acetyl-D, L-penicillamine 6
5 g, 1625 g of Mannitol, and 1625 g of polyethylene glycol 6000 are pulverized and granulated in the same manner as in the operation (A). The amount of water added was adjusted to 30.0 ml, and after granulation, the granulated product was completely dried by drying at 50 ° C. for 30 minutes. The mixture thus obtained was compressed into tablets using the above-mentioned tableting machine at a filling amount of 7.865 g per tablet.
500 tablets of developer replenishment tablet B were prepared.

Next, a fixing supplementary tablet was prepared by the following procedure.

Operation (C) Ammonium thiosulfate / sodium thiosulfate (70/3
(0 weight ratio) 17410 g, sodium sulfite 1160
g and pine flow 1508 g are pulverized in the same manner as in (A), and then uniformly mixed with a commercially available mixer. Next, similarly to (A), pulverization and granulation are performed. The amount of water added is 500 ml, and after granulation, the granulated product is dried at 60 ° C. for 30 minutes to almost completely remove the water content of the granulated product. Next, the obtained mixture was compressed into tablets by the above-mentioned tableting machine with the filling amount per tablet being 8.023 g to prepare 2500 fixing replenishing tablet C agents.

Operation (D) 5804 g of succinic acid and 11607 g of β-alanine are ground and granulated in the same manner as in the operation (A). The amount of water added is 100m
After granulating to 1 and drying at 50 ° C. for 30 minutes, the water content of the granulated product is almost completely removed. 2321 g of polyethylene glycol 6000 was added to the thus prepared product,
After mixing for 3 minutes, the obtained mixture was compressed into tablets using the above-mentioned tablet machine at a filling amount of 7.429 g per tablet to prepare 2500 fixing replenishing tablets D agent.

Starter for Developer Glacial acetic acid 2.98 g KBr 4.0 g Water is added to make 1 liter.

At the start of processing of the developing solution (starting of running), 16.5 liters of a developing solution prepared by diluting the developing tablet with diluting water was added to a developing tank with 330 ml of a starter solution to fill the developing tank and start the processing. did. still,
The pH of the developer containing the starter was 10.45.

The light-sensitive material prepared above was exposed to light so that the optical density after development was 1.0, and running was carried out. For running, an automatic processor SRX-502 (manufactured by Konica Corporation) equipped with a solid processing agent charging member and modified so that the processing speed could be adjusted was used.

During running, the photosensitive material was 1.0 in the developer.
It was carried out by adding 1 each of the above-mentioned agents A and B and 120 ml of water per 0 m ² . When each of A and B was dissolved in 120 ml of water, the pH was 10.70. The fixing solution contains four C and D agents and 1 water each per 1.00 m ² of the light-sensitive material.
65 ml was added. The rate of water addition to each of the treatment agents was started almost at the same time as the addition of the treatment agent, and was added at a constant rate for 10 minutes in proportion to the dissolution rate of the treatment agent.

[0329] Developer formulation (composition per liter) pH 10.70 Potassium carbonate 50 g Erythorbic acid 40 g Phenidone 3.4 g Diethylenetriamine pentaacetic acid (DTPA) 3 g 5-Methylbenzotriazole 0.2 g 1-Phenyl-5-mercaptotetrazole 0. 1 g Sodium sulfite 4.7 g Polyethylene glycol 9 g N-acetyl-D, L-penicillamine 0.2 g Mannitol 9 g Fixer formulation (composition per liter) pH 4.80 Sodium thiosulfate 45 g Ammonium thiosulfate 105 g Sodium sulfite 10 g Succinic acid 50 g β-alanine 100 g Pine flow 13 g Polyethylene glycol 20 g The results obtained are shown in Table 9 below.

[0330]

[Table 9]

As is clear from Table 9, the sample of the present invention uses a solid processing agent containing no dihydroxybenzenes, has high sensitivity even in a rapid processing of 15 seconds, has no problem in fixing property, and develops. It can be seen that there is no unevenness.

Example 8 Sample No. 8 was prepared in the same manner as in Example 4 except that the developing treatment was carried out in the same manner as in Example 7. 9 and No. 10 was evaluated. Sample No. of the present invention. Sample No. 10 is Compared with No. 9, the sensitivity, fixability and sharpness were excellent.

Example 9 Spectral sensitizing dye D- in the preparation of Em-3 and Em-7
2, D-15 changed to D-28, D-29, Em-
No. 8, Em-9 was prepared and the resulting emulsion was used in the same manner as in Example 5 except that the amount of coated silver was 2.8 g / m ² .
Sample No. 11, No. 12 was prepared and evaluated.

The development process was the same as in Example 7. Sample No. of the present invention. Sample No. 12 is Compared with No. 11, the sensitivity, fixability and storability were excellent.

[0335]

As demonstrated in the examples, according to the present invention, a silver halide photographic light-sensitive material having high sensitivity, high image quality, suitability for rapid processing, and excellent storage resistance was obtained. Further, according to the present invention, a silver halide photographic light-sensitive material having good sensitivity, fixability and sharpness can be obtained by combining with a radiation intensifying screen.

Further, there is obtained a processing method of a silver halide photographic light-sensitive material which is free from deterioration in sensitivity and image quality when processed with a solid processing agent or with a developing solution containing substantially no dihydroxybenzenes. Was completed.

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Claims (16)

[Claims] 1. A silver halide photographic light-sensitive material having a silver halide emulsion layer on both sides of a transparent support, wherein the silver amount of the silver halide emulsion layer is 1.8 g / m 2 per side of the support.
² or less, and 50% or more of the total projected area of the silver halide grains contained in the silver halide emulsion layer are tabular silver halide grains, and the main plane of the tabular silver halide grains is Is a (100) plane with an adjacent edge ratio of less than 10, and
A halogen characterized in that the tabular silver halide grains have an aspect ratio of 2 or more, and the tabular silver halide grains contain silver iodide and at least 50 mol% or more of silver chloride therein. Silver halide photographic light-sensitive material. 2. The silver halide photographic light-sensitive material as claimed in claim 1, wherein the silver halide photographic light-sensitive material contains a dye. 3. The silver halide photographic light-sensitive material according to claim 1, wherein the silver halide photographic light-sensitive material contains a dye that flows out and / or a dye that decolorizes during the development processing. 4. A silver halide photographic light-sensitive material having a silver halide emulsion layer on both sides of a transparent support, wherein the silver amount in the silver halide emulsion layer is 1.8 g / m per side of the support.
² or less, and 50% or more of the total projected area of the silver halide grains contained in the silver halide emulsion layer are tabular silver halide grains, and the main plane of the tabular silver halide grains is Is a (100) plane with an adjacent edge ratio of less than 10, and
A silver halide photographic light-sensitive material in which the aspect ratio of the tabular silver halide grains is 2 or more, and the tabular silver halide grains contain silver iodide and at least 50 mol% or more of silver chloride therein. And a phosphor layer containing a phosphor and a binder on a support, the filling rate of the phosphor in the phosphor layer is 68% or more, and the thickness of the phosphor is 120 μm or more and 250 μm or less. A photographic material comprising a combination of a silver halide photographic light-sensitive material and a radiographic intensifying screen, which is photographed in combination with a set of radiographic intensifying screens. 5. A silver halide photographic light-sensitive material having a silver halide emulsion layer on one side of a transparent support, wherein the silver amount in the silver halide emulsion layer is 3.6 g / m ² or less,
And 50% or more of the total projected area of the silver halide grains contained in the silver halide emulsion layer are tabular silver halide grains, and the main plane of the tabular silver halide grains has an adjacent edge ratio of less than 10. (100) plane, the aspect ratio of the tabular silver halide grains is 2 or more, and the tabular silver halide grains contain silver iodide and at least 50
A silver halide photographic light-sensitive material comprising a silver chloride content of at least mol%. 6. A method of processing a silver halide photographic light-sensitive material, which comprises processing the silver halide photographic light-sensitive material according to claim 1 in a total processing time of 15 seconds to 90 seconds. 7. A method of processing a silver halide photographic light-sensitive material, which comprises processing the silver halide photographic light-sensitive material according to claim 5 for a total processing time of 15 seconds to 90 seconds. 8. A silver halide photographic light-sensitive material having a silver halide emulsion layer on both sides of a transparent support, wherein the silver amount in the silver halide emulsion layer is 1.5 g / m on one side of the support.
² or less, and 50% or more of the total projected area of the silver halide grains contained in the silver halide emulsion layer are tabular silver halide grains, and the main plane of the tabular silver halide grains is Is a (100) plane with an adjacent edge ratio of less than 10, and
The aspect ratio of the silver halide grains on the flat plate is 2 or more, and the tabular silver halide grains contain silver iodide and at least 50 mol% or more of silver chloride therein; A silver halide photographic light-sensitive material characterized in that it has silver iodide and / or silver bromide-rich areas in the vicinity of at least one apex or near the surface of the regular silver halide grains. 9. The silver halide photographic light-sensitive material according to claim 8, wherein the silver halide photographic light-sensitive material contains a dye. 10. The dye according to claim 8, wherein the silver halide photographic light-sensitive material flows out in the course of development processing, and / or
Alternatively, a silver halide photographic light-sensitive material containing a decolorizing dye. 11. A silver halide photographic light-sensitive material having a silver halide emulsion layer on both sides of a transparent support, wherein the silver amount in the silver halide emulsion layer is 1.5 g / side of one side of the support.
m ² or less, and 50% or more of the total projected area of the silver halide grains contained in the silver halide emulsion layer are tabular silver halide grains, and the major portion of the tabular silver halide grains is The plane is a (100) plane having an adjacent side ratio of less than 10, the aspect ratio of the silver halide grains on the flat plate is 2 or more, and the tabular silver halide grains contain silver iodide and at least 50 grains. Contains more than mol% silver chloride,
Further, a silver halide photographic light-sensitive material having a silver iodide and / or silver bromide-rich region in the vicinity of at least one apex or surface of the tabular silver halide grains, and a phosphor and a binder on a support. In combination with a set of radiographic intensifying screens having a phosphor layer containing a phosphor having a filling factor of 68% or more in the phosphor layer and a phosphor thickness of 120 μm or more and 250 μm or less. A photographic material combining a silver halide photographic light-sensitive material and a radiation intensifying screen, which is characterized by taking a picture. 12. A silver halide photographic light-sensitive material having a silver halide emulsion layer on one side of a transparent support, wherein the silver halide emulsion layer has a silver amount of 3.0 g / m ² or less, and 50% or more of the total projected area of the silver halide grains contained in the silver halide emulsion layer are tabular silver halide grains, and the main plane of the tabular silver halide grains has an adjacent edge ratio of less than 10 (100 ) Plane, the aspect ratio of the silver halide grains on the plate is 2 or more, and the tabular silver halide grains contain silver iodide and at least 50 mol% or more of silver chloride therein. And a silver halide photographic light-sensitive material, characterized in that it has silver iodide and / or silver bromide-rich areas near at least one vertex or near the surface of the tabular silver halide grains. 13. A method of processing a silver halide photographic light-sensitive material, which comprises processing the silver halide photographic light-sensitive material according to claim 8 for a total processing time of 10 seconds to 45 seconds. 14. A method of processing a silver halide photographic light-sensitive material, which comprises processing the silver halide photographic light-sensitive material according to claim 12 in a total processing time of 10 seconds to 45 seconds. 15. The method for processing a silver halide photographic light-sensitive material according to claim 1, wherein the processing is carried out by an automatic developing machine having a mechanism for supplying a solid processing agent to a processing tank of the automatic developing machine. 16. The method of processing a silver halide photographic light-sensitive material according to claim 1, wherein the processing is carried out with a developing solution containing substantially no dihydroxybenzenes.