JPS62266538A - Silver halide color photographic sensitive material - Google Patents

Abstract

PURPOSE:To remarkably improve an MTF value at both frequencies of GL and RL by using planar particles having >=5 aspect ratio to at least one layer of an emulsion layer substantially having photosensitivity and specifying the (d) value of the emulsion film thickness to <=16mu. CONSTITUTION:This photosensitive material has >=1 layers of the red-sensitive silver halide emulsion layer, green-sensitive silver halide emulsion layer and blue-sensitive silver halide emulsion layer contg. one kind of dye image forming compd. on a base, and >=50% of the silver halide particles contained in one emulsion layer with respect to the total projection area thereof is occupied by the planar silver halide particles having <0.5mum thickness, at least 0.6mum diameter and >=5 average aspect ratio. The thickness of the emulsion layers including down to the photosensitive layer nearest the base is specified to <=16mum. The thickness of the emulsion films is preferably 14mum, more preferably <=12mum. Silver may be incorporated at 0.1-12g/m<2> coating weight into the emulsion layer forming the emulsion film thickness.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a silver halide color photographic material with improved image sharpness.

(Prior Art) Usually, in a multilayer color photographic material having blue-sensitive, green-sensitive and red-sensitive silver halide emulsions 1, light disturbance caused by silver halide grains reduces the sharpness of the underlying emulsion layer. The trend is known.

U.S. Patent No. 4.439.520 or U.S. Patent No. 4.4
No. 33.048 describes a color photographic material with improved sharpness, sensitivity, and graininess by using a tabular silver halide emulsion. Sharpness of photographic material:′! It is usually expressed as an MTF value, and its details are described in "Theory of Photographic Process" by James, 4th edition (1977), p.596 and p.604. It is well known that the sharpness of a photographic material, expressed by MTF, has a frequency dependence having a pattern shown in curve (a) in Figure 1, for example. It is also well known that it is created by optical scattering and development effects. The present inventors used a flat emulsion in a light-sensitive material and conducted intensive studies to improve the sharpness. As a result, the improvement in sharpness when using a flat emulsion does not necessarily mean that
The result is that the improvement is not noticeable over all frequencies of TF, but is mainly improved only in the high frequency region, as shown in curve (b) for curve (a) in Figure 1, or surprisingly, curve (b) in Figure 1 It has been found that results with improvement in the high frequency range and deterioration in the low frequency range frequently occur as shown in (C).

It is often experienced that a low frequency MTF with a frequency of 20 lines/mm or less has a greater influence on visual sharpness than a high frequency MTF, and the present inventors have used a flat emulsion to improve visual sharpness in the above low frequency range. We have been trying to improve the MTF of .

(Problems to be Solved by the Invention) An object of the present invention is to provide a silver halide color photographic material with excellent sharpness over the entire frequency range.

(Means for Solving the Problems) The object of the present invention is to (1) provide one or more red-sensitive silver halide emulsion layers containing at least one dye image-forming compound on a support; It has an emulsion layer and a blue-sensitive silver halide emulsion layer, and at least 50% of the total projected area of the silver halide grains contained in at least one of the emulsion layers has a thickness of less than 0.5 μm and a diameter. is at least 0.6
A halogenated emulsion characterized by being occupied by tabular silver halide grains having an average aspect ratio of 5 or more μm, and having an emulsion film thickness of 16 μm or less including the protective layer to the photosensitive layer closest to the support. a silver color photographic material, (2) the average asb/to ratio of the silver halide grains is 5;
The silver halogen color light-sensitive photographic material according to (1) above, wherein the silver halogenide color photosensitive material is less than 8.

(3) The silver halide color photosensitive material according to (1) above, characterized in that the average aspect ratio of the silver halide grains is 8 or more; A silver halide color-sensitive photographic material characterized in that the light-sensitive and red-sensitive emulsion layers consist of two or three layers of the same color sensitivity, (5) the blue-sensitive, green-sensitive, and red-sensitive emulsions in (2) above A silver halide color photosensitive photographic material comprising two or three layers of the same color sensitivity, (6) in (3) above, comprising two or three blue-sensitive, green-sensitive, and red-sensitive emulsion layers; This was achieved by a silver halide color photosensitive photographic material, characterized in that it consists of layers with the same color sensitivity.

The contents of the present invention will be explained in detail below.

It is presumed that the above surprising phenomenon is caused by the following mechanism. It is well known that silver halide is a major cause of optical disturbance in the emulsion layer of sensitive materials. In tabular emulsions, if the grains are irradiated at an angle of incidence greater than the critical angle determined by the difference in refractive index between the dispersion medium (which can actually be thought of as gelatin) and the silver halide, it will be reflected more frequently. Will. It is also possible that the totally reflected light is further reflected at the interface between the pond's tabular grains or the dispersion medium other than silver 10genide and a phase with a different refractive index (for example, the interface between the protective layer and air). It is quite conceivable that such multiple scattering increases the blurring of light having a long path length in the direction perpendicular to the emulsion surface from the point of incidence on the emulsion film. However, it is thought that when the emulsion film thickness is reduced, the above-mentioned bleeding is reduced and the low scattering properties of the flat emulsion are significantly exhibited.

In the present invention, the emulsion film thickness including the layer from the protective layer to the photosensitive layer closest to the support can be easily estimated by taking a cross-sectional photograph of the photosensitive material under the following conditions. After coating the emulsion on a support and drying the sample, a cut surface is prepared using a microtome, and after the cut surface is coated with, for example, gold, palladium, carbon, etc., a cross-sectional photograph is taken using a scanning electron microscope.

The emulsion film thickness is preferably 16 μm or less, more preferably 14 μm or less, still more preferably 12 μm or less.

The emulsion layer forming the emulsion film thickness contains 0.1 to 12 g/m
' can contain a coated silver amount of '.

In the present invention, the aspect ratio of a tabular grain refers to the diameter/thickness ratio of the grain, the diameter of a silver halide grain refers to the diameter of a circle with an area equal to the projected area of the grain, and the thickness refers to the diameter/thickness ratio of the grain. It refers to the distance between two parallel planes that form a silveride grain.

The thickness of the layer containing tabular silver halide grains among the layers forming the emulsion film thickness is 0.1 to 6.0 μm, preferably 0.2 to 3.0 μm, more preferably 0.5 μm. ~2.0
Preferably it is μ.

Moreover, the amount of coated silver by tabular silver halide grains is 0.1
-12 g/m', particularly preferably 0.3 to 8 g/m'.

"Having substantially the same color sensitivity" means "having substantially the same color sensitivity" as seen in ordinary multilayer silver halide color photographic materials;
It means the same color sensitivity among green-sensitive or red-sensitive emulsion layers, and means that they have common sensitivity to a specific region of the visible spectrum.

In each of the above-mentioned photosensitive emulsion layers and auxiliary layers, the ratio of the sum of the high-boiling point organic solvent and the compound soluble in the solvent to the coated gelatin weight (hereinafter referred to as oil soluble content/gelatin ratio) is 2 or less. Yes, preferably 1 or less, more preferably 0.7 or less. A certain level of physical strength is practically required for the emulsion layer of a photographic material, and one of the factors governing physical strength is the oil-soluble/gelatin ratio, and this value must be maintained as low as mentioned above. There may be cases where it is no longer practical.

The sensitive material to which the present invention is directed has an OIO of 15 or more, preferably 25 or more, more preferably 50 or more.

In the present invention, the diameter of the tabular silver halide grains is 5.0
μ or less, preferably 0.5 to 3.0 μ. Also, the thickness is 0.5 μ or less, preferably 0.4 μ or less 0.0
It is 5μ or more, more preferably 0.3μ or less and 0.5μ or more.

The aspect ratio of the tabular grains is 5 or more, and may be 5 to 8 or 8 or more depending on practical requirements.

The proportion of tabular silver halide grains in the emulsion layer containing the tabular silver halide grains used in the present invention is preferably 5096 or more, and 70% or more of the total projected area. is more preferable,
In particular, it is most preferably 90% or more.

These tabular silver halide grains were produced by
As described in No. 6, etc., it is also possible to use monodispersed silver halide grains with a branched grain size and/or thickness.

Here, the expression that the tabular silver halide grains are monodisperse means that the 95960 grains are dispersed within ±60% of the number average grain size, preferably within ±40% of the number average grain size. Here, the number average grain size is the number average diameter of the projected area diameter of silver halide grains.

The halogen composition of the tabular grains is preferably silver bromide, silver iodobromide, silver chlorobromide, silver chloroiodobromide, silver chloride, or silver iodochloride. Silver iodobromide, silver bromide, silver chlorobromoiodide, or a mixture thereof is particularly preferred for use in high-sensitivity light-sensitive materials. In the case of silver iodobromide, the silver iodide content is usually 40 mol% or less, preferably 20 mol% or less, more preferably 15 mol% or less.
It is less than mol%.

The tabular grains may have a uniform halogen composition or may consist of two or more phases having different halogen compositions.

For example, when silver iodobromide is used, the silver iodobromide tabular grains may have a plurality of interlocking layered structures each having a different iodide content. Japanese Unexamined Patent Publication 1983
-113,927, JP-A-58-113,928,
JP-A-59-99.433, JP-A-59-119,3
Preferred examples of the halogen composition of tabular silver halide grains and the intra-grain distribution of halogen are described in No. 44 and JP-A-59-119,350.

The tabular grains can be selected from those formed from (111) planes, (100) planes, or a mixture of (lit) planes and (100) planes.

Regarding the formation site of the latent image, the particles may be such that the latent image is mainly formed on the surface of the particle, or the particle may be such that the latent image is mainly formed inside the particle. Furthermore, particles may be used in which a latent image is formed on the particle surface and inside the particle.

Next, a method for producing tabular silver halide grains will be described.

The tabular silver halide grains can be produced by appropriately combining methods known in the art.

For example, seed crystals containing 40% or more by weight of tabular grains are formed in an atmosphere with a relatively low per value of pBrl, 3 or less, and while maintaining the same per value, silver and halogen solutions are simultaneously added. Obtained by growing crystals.

During this grain growth process, it is desirable to add a silver and halogen solution to prevent the generation of new crystal nuclei.

The size of the tabular silver halide grains can be adjusted by controlling the temperature, selection of the type and amount of solvent, the silver salt used during grain growth, the addition rate of halide, etc.

When producing the tabular silver halide grains of the present invention, by using a silver halide solvent as necessary, grain size, grain shape (diameter/thickness ratio, etc.), grain size distribution,
The growth rate of particles can be controlled; for example, by increasing the amount of solvent used, the particle size distribution can be made monodisperse and the growth rate can be accelerated. On the other hand, there is also a tendency for the thickness of the particles to increase with the amount of solvent used.

Often used silver halide solvents include ammonia, thioethers and thioureas.

These silver halide solvents are added in order to accelerate grain growth during the production of tabular silver halide grains of the present invention.

A method of increasing the addition rate, amount, and concentration of a silver salt solution (for example, AgNO3 aqueous solution) and a halide solution (for example, KBr aqueous solution) is preferably used.

More specifically, regarding the tabular silver halide grains used in the present invention and the silver halide emulsion containing them, including the manufacturing method, for example, U.S. Pat. No. 4,434.226,
4.439.520, 4.414.310, 4.425.425, 4.399.21
No. 5, No. 4.435.501, No. 4,386
．． No. 156, No. 4, No. 400.463, No. 4.4
14.306, European Patent No. 4.425.426, European Patent No. 84.637 A2, JP-A-59-99433, Research Disclosure No. 22534 (
(January 1983).

The photographic emulsion layers other than the tabular silver halide emulsion layer of the present invention contain any halogen such as silver bromide, silver iodobromide, silver chlorobromide, silver chloroiodobromide, silver chloride, and silver chloroiodide. Silver oxide may be used, and silver iodobromide is preferred for high-sensitivity light-sensitive materials. In the case of silver iodobromide, the silver iodide content is usually 40 mol% or less, preferably 20 mol% or less, more preferably 15 mol% or less.

The above-mentioned silver halide grains may be so-called regular grains having a regular crystal structure such as a cube, octahedron, or dodecahedron, or may have an irregular crystal shape such as a spherical shape, or may have a twin crystal shape. It may be one with crystal defects such as planes or a composite form thereof.

Also, mixtures of particles of various crystal forms may be used.

The grain size of the silver halide mentioned above may be fine grains of about 0.1 micron or less, large grains with a projected area diameter of about 10 microns, a monodisperse emulsion with a narrow distribution, or a monodisperse emulsion with a wide distribution. It may also be a polydisperse emulsion.

Further, tabular grains having an aspect ratio of 5 or more may be used in the above emulsion layer.

The crystal structure of the emulsion grains described above may be uniform, the inside and outside may have different halogen compositions, or they may have a layered structure. These emulsion grains are described in British Patent No. 1.027.146 and US Patent No. 3.505.06.
No. 8, No. 4.444.877 and patent application 1982-
It is disclosed in No. 248469 and the like. Furthermore, silver halides having different compositions may be bonded by epitaxial bonding, or compounds other than silver halide such as silver rhodan or lead oxide may be bonded. These emulsion grains are described in U.S. Pat.
．． 142.900, 459.353, British Patent No. 2.038.792, US Patent No. 4.349.6
No. 22, No. 4.395.478, No. 4.433
．． No. 501, No. 4.463.087, No. 3; 656
．． No. 962, No. 3, No. 852.067, JP-A-59-1
It is disclosed in No. 62540 and the like.

The above-mentioned emulsion may be a surface latent image type in which a latent image is mainly formed on the surface, an internal type in which a latent image is formed inside the grain, or a type in which a latent image is formed both on the surface and inside the grain.

The silver halide photographic emulsion that can be used in combination with the present invention can be produced using any known method, for example, Research Disclosure, Vol. 176, Nα17643 (December 1978).
), pp. 22-23, “1. Emulsion production (Emulsio
n Preparation and Types)
” and same, vol. 187, N11L18716 (1979
(November 2013), p. 648.

Photographic emulsions that can be used in combination with the present invention include "Physics and Chemistry of Photography" by Grafkide, published by Beaumontel (P.

Glafkides, Chimie et Physi
que Photographique Paul! J
Antel, 1967), "Photographic Emulsion Chemistry" by Duffin, published by Focal Press (G, F, Duff
in, Photo-graph icεmuls+
on Chemistry (Focal Press,
1966), “Manufacture and Coating of Photographic Emulsions” by Zelikman et al., published by Focal Press (V, L, 2elikman
et at,! akingand Coat+ng
Photographic Emuls+on, F
ocalPress, 1964), etc., as appropriate. That is, any of the acidic method, neutral method, ammonia method, etc. may be used, and the method for reacting the soluble silver salt with the soluble halogen salt may be any one-sided mixing method, simultaneous mixing method, or a combination thereof. good. It is also possible to use a method in which particles are formed in an excess of silver ions (so-called back-mixing method). As one form of the simultaneous mixing method, a method in which the pAg in the liquid phase in which silver halide is produced can be kept constant, that is, a so-called Chondrald double jet method can also be used. According to this method, a silver halide emulsion having a regular crystal shape and a nearly uniform grain size can be obtained.

Various silver halide solvents (for example, ammonia, Rodankali, U.S. Pat. No. 3,271,157, JP-A No.
1-12360, JP-A-53-fl12408, JP-A-53-144319, JP-A-54-100717
It is also possible to use thioethers and thione compounds described in JP-A-54-155828 and the like.

A silver halide emulsion comprising regular grains that can be used in the present invention can be obtained by controlling pAg and pH during grain formation. For more information, see
Science and Engineering (Photog
rapic 5science and Engi+t
6, pp. 159-165 (1962
); Journal of Photographic Science
5science), vol. 12, pp. 242-251 (1
964), U.S. Pat. No. 3,655.394 and British Patent No. 1.413.748.

Furthermore, as a monodisperse emulsion, the average particle diameter is approximately 0.05.
Emulsions with silver halide grains larger than microns, at least about 95% by weight of which are within ±40% of the average grain diameter, are typical. Average particle diameter is about 0.05-2
microns and at least about 95% by weight or (#;
An emulsion in which at least 95% of the silver halide grains (L grain number) are within the range of ±20% of the average grain diameter can be used in the present invention. A method for producing such an emulsion is described in U.S. Patent No.
, 574.628, 3.655.394 and British Patent No. 1.413.743. Also, JP-A-48-8600, JP-A No. 51-39'027
No. 51-83097, No. 53-137133,
No. 54-48521, No. 54-99419, No. 58
Monodisperse emulsions such as those described in Japanese Patent Nos. 37635 and 58-49938 can also be preferably used in the present invention.

In the process of silver halide grain formation or physical ripening,
A cadmium salt, a zinc salt, a lead salt, a thallium salt, an i'ldium salt or a complex salt thereof, a rhodium salt or a complex salt thereof, an iron salt or an iron complex salt, etc. may be present.

In order to remove soluble silver salts from the emulsion before and after physical ripening, Nudel water washing, flocculation sedimentation method, ultrafiltration method, etc. are used.

The emulsion used in the present invention is usually subjected to physical ripening, chemical ripening, and spectral sensitization.

The additives used in such processes are based on the research and research mentioned above.
Disclosure No. 17643 (December 1978) and Disclosure No. 18716 (November 1979), and the relevant parts are summarized in the table below.

Known photographic additives that can be used in the present invention are also listed in the two Research Disclosures mentioned above, and their locations are shown in the table below.

In the present invention, it is preferable to use various filter dyes such as yellow, magenta, and cyan.

2 Sensitivity increasing agent Same as above 3 Spectral sensitizer, pages 23-24 Page 648 right column ~ Super sensitizer Page 649 right column 4 Brightening agent 2
Page 4 5 Antifouling agent Pages 24-25 Page 649 Right column and stabilizer 6 Light absorber, filter Page 25-26 649 Right old ~ Ilter dye 650 Left UV absorber 7 Stain inhibitor Page 25 Right column Page 650 Left to right column 8 Dye surface 1 image stabilizer page 25 9 Hardener page 26 page 651 right column 10
Buyer page 26 Same as above 11
Plasticizer, lubricant Page 27 650 Right column 12
Coating aids, Tables 26-27 Same as above Surface activator 13 Static preventives Page 27 Same as above Various color couplers can be used in the present invention, and specific examples thereof include the above-mentioned Research Disclosure N
It is described in the patent listed in O, I 7643, ■-C-G. As dye-forming couplers, couplers that give the three primary colors (i.e., yellow magenta and cyan) in subtractive color development are important.Specific examples of diffusion-resistant, hydrophobic, 4-equivalent or 2-equivalent couplers are mentioned above. Research Disclosure No. I 7643,
In addition to the couplers described in the patents described in Items 1-0 and D, the following can be preferably used in the present invention.

A representative example of the yellow coupler that can be used in the present invention is a hydrophobic annulacetamide coupler having a ballast group. A specific example is US Patent No. 2.
No. 407.210, No. 2.875.057, No. 3.265.506, etc.

The use of two-equivalent yellow couplers is preferred for the present invention, and is described in U.S. Pat.
No. 923, No. 3.933.501 and No. 4.
022.620, etc., or Japanese Patent Publication No. 58-10739,
U.S. Pat. No. 4.401.752, U.S. Pat. No. 4.326.
No. 02.4, RD18053 (April 1979),
British Patent No. 1,425.020, West German Published Application No. 2.
219.917, 2.261.361, 2.329.587 and 2,433.812
A representative example of this is the nitrogen atom dissociative yellow coupler described in No.

α-pivaloylacetanilide couplers have excellent color fastness, particularly light fastness, while α-benzoylacetanilide couplers provide a high degree of color development.

Magenta couplers that can be used in the present invention include hydrophobic indacylon or cyanoacetyl couplers having a ballast group, preferably 5-pyrazolone and pyrazoloazole couplers. The 5-pyrazolone coupler is preferably a coupler in which the 3-position is substituted with an arylamino group or an acylamino group from the viewpoint of the hue and color density of the coloring dye.
, No. 311.082, No. 2.343.703, No. 2.600.788, No. 2.908.573,
Same No. 3.062.653, Same No. 3.152.896
No. 3.936.015, etc. Particularly preferred as the leaving group for the two-equivalent 5-pyrazolone coupler are the nitrogen atom leaving group described in U.S. Pat. No. 4,310,619 or the arylthio group described in U.S. Pat. No. 4,351,897.

Further, the 5-pyrazolone coupler having a ballast group described in European Patent No. 73.636 has a high color density. Examples of birazoloazole couplers include pyrazolobenzimidazoles described in U.S. Pat. No. 3.061.432, preferably U.S. Pat. No. 3.725.067.
Pyrazolo C5,1-c) CI, 2゜4] Triazoles, Research Disclosure +-
No. 24220 (June 1984) and Japanese Patent Publication No. 6
Pyrazolotetrazoles described in No. 0-33552 and Research Disclosure Nα24230 (1
(June 1984) and pyrazolopyrazoles described in JP-A No. 60-43659. U.S. Patent No. 4 due to the low yellow side absorption of the coloring dye and light fastness.
．． Imidazo C1,2b described in No. 500.630:]
Pyrazoles are preferred, as described in European Patent No. 119,860
Pyrazolo (1,5-b) [1,2,4) described in item A
) Riazole is particularly preferred.

Cyan couplers that can be used in the present invention include hydrophobic, scattering-resistant naphthol and phenolic couplers, such as the naphthol couplers described in U.S. Pat. .052
．． No. 212, No. 4.146.396, No. 4,
Typical examples include two-equivalent naphthol couplers of the oxygen atom separation type described in No. 228.233 and No. 4.296.200. Further, specific examples of phenolic couplers are given in U.S. Patent Nos. 2.369.929 and 2. ut, No. 171, No. 2.772.162
No. 2, No. 895.826, etc.

Cyan couplers that are stable against humidity and temperature are preferably used in the present invention, and a typical example thereof is as described in U.S. Pat. Phenolic cyan coupler having U.S. Pat. No. 2,772.162
No. 3.758.308, No. 4.126.39
No. 6, No. 4.334.011, No. 4.327.1
73, West German Patent Publication No. 3.329.729 and European Patent No. 121,365, etc.
Diacylamino-substituted phenolic couplers and U.S. Pat.
These include phenolic couplers having a phenylureido group at the 2-position and an acylamino group at the 5-position, as described in No. 767.

(Naf described in European Patent No. 161,628 A)
A cyan coupler in which a sulfonamide group, an amide group, or the like is substituted at the 5-position of the - group also has excellent fastness of the color image, and can be preferably used in the present invention.

In order to correct unnecessary absorption of color pigments, it is preferable to perform masking by using a colored coupler in combination with a color image for photographing. Yellow-colored magenta couplers described in U.S. Pat. No. 4,163.670 and Japanese Patent Publication No. 57-39413, etc. or U.S. Pat.
No. 4.138.258 and British Patent No. 1
．． Typical examples include the magenta-colored cyan coupler described in No. 146.363. The colored coupler in the pond is the aforementioned Research Disclosure, Nα
17643, Sections ① to G.

Granularity can be improved by using a coupler in which the coloring dye has an appropriate diffusibility. Such a coupler is
U.S. Patent No. 4.366,237 and British Patent No. 2
．． No. 125,570 has a specific example of magenta cobbler.
Also, European Patent No. 96.570 and West German Appearance Publication No. 3
．． No. 234.533 describes specific examples of yellow, magenta or cyan couplers.

The dye-forming couplers and the special couplers described above may form dimers or more polymers. A typical example of a polymerized dye-forming coupler is U.S. Pat. No. 3.451.82.
No. 0 Oyohi same! No. 4.080.211. Specific examples of polymerized magenta couplers are given in British Patent No. 2.102.173 and U.S. Patent No. 4,36.
7,282.

The molecular weight of the polymer coupler used in the present invention is preferably 10,000 or more, and a molecular weight of 20,000 to 100,000 is particularly preferably used.

Couplers that release photographically useful residues upon coupling are also preferably used in the present invention. As DIR couplers that release development inhibitors, the patented couplers described in the aforementioned Research Disclosure, Nα17643, Items ① to F are useful.

Preferred in combination with the present invention is JP-A-57-
Developer deactivated type represented by No. 1519.44; U.S. Patent No. 4.248.962 and JP-A-15423-1983
Timing type represented by No. 4; patent application No. 59-39653
Particularly preferred are JP-A-57-151944, JP-A-58-217932,
Developer deactivation type DIR couplers described in Japanese Patent Application No. 59-75474, Japanese Patent Application No. 59-82214, Japanese Patent Application No. 59-82214, Japanese Patent Application No. 59-90438, etc.
This is a reactive DIR coupler described in No.-39653 and the like.

Further, redox type DIR compounds are also preferably used in the present invention. D preferred in combination with the present invention 1. R Hydroquinone is disclosed in U.S. Patent No. 336402 and U.S. Patent No. 337.
Particularly preferred are JP-A-50-62435, JP-A-50-133833, and JP-A-50-133833.
JP-A-50-119631, JP-A-51-51941
This is a compound described in JP-A No. 52-57823.

The coupler used in the present invention can be introduced into the photosensitive material by various known dispersion methods, such as a solid dispersion method, an alkali dispersion method, preferably a latex dispersion method, and more preferably an oil-in-water dispersion method. This can be cited as an example. In the oil-in-water dispersion method, a high-boiling organic solvent with a boiling point of 175°C or higher and a so-called auxiliary solvent with a low boiling point are dissolved in either a single liquid or a mixture of the two, and then water or gelatin is dissolved in the presence of a surfactant. Finely dispersed in aqueous media such as aqueous solutions. Examples of high boiling point organic solvents are U.S. Patent No. 2.32.
2.027, etc. Dispersion may involve rolling, and if necessary, the auxiliary solvent may be removed or reduced by distillation, noodle washing, ultrafiltration, etc., and then used for coating.

Examples of the process, effects, and latex for impregnation of the latex limb method are described in U.S. Pat. .230 etc.

The photosensitive dye produced using the present invention contains hydroquinone derivatives, aminophenol derivatives, amine derivatives, gallic acid derivatives, catechol derivatives, ascorbic acid derivatives, colorless couplers, and sulfonamides as color-fogging inhibitors or color-mixing inhibitors. It may also contain phenol derivatives and the like.

Various antifading agents can be used in the photosensitive material of the present invention. Organic anti-fading agents include hydroquinones,
Hindered phenols, mainly 6-hydroxychromans, 5-hydroquine coumarans, spirochroman a, p-alkoxyphenols, and bisphenols,
Typical examples include gallic acid derivatives, methylene dioxybenzenes, amine phenols, hindered amines, and ether or ester derivatives obtained by silylating or alkylating the phenolic hydroxyl group of each of these compounds. Further, metal complexes such as (bissalicylaldoximado)nickel complex and (bis-N,N-dialkyldithiocarbamado)nickel complex can also be used.

One preferred layer arrangement for the present invention is red-sensitive, green-sensitive, blue-sensitive from the support side, or blue-sensitive, red-sensitive, green-sensitive from the support side. Further, each of the above-mentioned emulsion layers may be made up of two or more emulsion layers having different sensitivities, or a non-photosensitive layer may be present between two or more emulsions 1 having the same sensitivity. Usually, the red-sensitive emulsion layer contains a cyan-forming coupler, the green-sensitive emulsion layer contains a magenta-forming coupler, and the blue-sensitive emulsion layer contains a yellow-forming coupler, but different combinations may be used depending on the case.

The light-sensitive material according to the present invention has a silver halide emulsion layer containing:
Protective layer, intermediate layer, filter layer, antihalation layer,
It is preferable to appropriately provide an auxiliary layer such as a back layer.

In the photographic light-sensitive material of the present invention, the photographic emulsion layer and other layers are coated on flexible supports such as plastic films, paper, and cloth, or rigid supports such as glass, ceramic, and metal, which are commonly used in photographic light-sensitive materials. be done. Useful flexible supports include cellulose derivatives (cellulose nitrate,
cellulose acetate, cellulose acetate butyrate, etc.), films consisting of synthetic polymers (polystyrene, polyvinyl chloride, polyethylene terecrate, polycarbonate, etc.), baryta layers or α-olefin polymers (e.g. polyethylene, polypropylene, ethylene/butene copolymers) It is paper coated or laminated with etc. The support may be colored using dyes or pigments. It may be made black for the purpose of blocking light. The surface of these supports is generally treated with an undercoat to improve adhesion to photographic emulsion layers and the like.

The surface of the support may be subjected to glow discharge, corona discharge, ultraviolet irradiation, flame treatment, etc. before or after the undercoating treatment.

In the light-sensitive material of the present invention, a coupler that releases a nucleating agent, a development accelerator, or a precursor thereof in an imagewise manner during one ring cycle can be used. Specific examples of such compounds are given in British Patent Nos. 2.097.140 and 2.131.
．． It is described in No. 188. Particularly preferred are couplers that release a nucleating agent that has an adsorption effect on silver halide;
No. 8 and No. 59-170840.

Suitable supports that can be used in the present invention include, for example, the above-mentioned R
D, page 28 of Nα17643 and the same, no.

18716, page 647 right page to page 648 left page.

The color photographic material according to the present invention has the above-mentioned RD,
No. 17643, pages 28-29 and the same, Nα1
65.1G of 8716: a to 65.1G: It can be developed by the usual method described in the right column.

The color developing solution used in the development of the light-sensitive material of the present invention is preferably an alkaline aqueous solution containing an aromatic primary amine color developing agent as a main component. Aminophenol compounds are also effective as agents for this color phenomenon, but p-
Phinidine diamine compounds are preferably used, typical examples of which include 3-methyl-4-amino-N, N-diethylaniline, and 3-methyl-4-amino-N-ethyl-N.
-β-hydroxylethylaniline, 3-methyl-4-
Amino-N-ethyl-N-β-methanesulfonamidoethylaniline, 3-methyl-4-amino-N-ethyl-
Examples include N-β-methoxyethylaniline and their sulfates, hydrochlorides, p-toluenesulfonates, and the like. These diamines are generally more stable in their salt form than in their free form, and are therefore preferably used.

The color developer may contain I) additives such as alkali metal carbonates, borates or phosphates, development inhibitors such as bromides, iodides, benzimidazoles, benzothiazoles or mercapto compounds; It generally contains antifoggants and the like. If necessary, preservatives such as hydroquinolamine or sulfites, organic solvents such as triethanolamine, diethylene glycol, benzyl alcohol, polyethylene glycol,
Development accelerators such as quaternary ammonium salts, amines, dye-forming couplers, competitive couplers, nucleating agents such as sodium boron hydride, auxiliary developers such as 1-phenyl-3-pyrazolidone, tackifiers, amino acids. polycarboxylic acid, ami/polyphosphonic acid, alkylphosphonic acid,
Various acidifying agents such as phosphonocarboxylic acids, antioxidants described in West German Patent Application (OLS) No. 2.622.950, and the like may be added to the color developing solution.

In the development process for reversal color photosensitive materials, black and white development is usually performed followed by color development. This black and white developer contains dihydroxybenzenes such as hydroquinone, l-phenyl-
3-pyrazolidones such as 3-pyrazolidone or N-
Known black and white developers such as aminophenols such as methyl-p-aminophenol can be used alone or in combination.

After color development, the photographic emulsion layer is usually bleached.

The bleaching process may be performed simultaneously with the fixing process, or may be performed separately. Furthermore, in order to speed up the processing, a bleach-fixing treatment may be used after bleaching. Examples of bleaching agents include iron (■), cobalt (■), and chromium (■).
), polyvalent metal compounds such as copper ([[), peracids, quinones, nitrone compounds, etc. are used. Typical bleaching agents include ferricyanide; dichromate; organic complex salts of iron (I) or cobalt ([[), such as ethylenediaminetetraacetic acid, diethylenetriaminepentaacetic acid, nitrilotriacetic acid, l,3-diamino-2-propatol Aminopolycarboxylic acids such as tetraacetic acid, citric acid, tartaric acid,
Complex salts of purulent acids such as malic acid; persulfates; manganates; nitrosophenols, etc. can be used. Among these, ethylenediaminetetraacetic acid iron (I[I) salt, diethylenetriaminepentaacetic acid iron ([) salt] and persulfate are preferable from the viewpoint of rapid processing and environmental pollution. Furthermore, the ethylenediaminetetraacetic acid iron(I[I) complex salt is particularly useful in both stand-alone bleach solutions and -bath bleach-fix solutions.

A bleach accelerator may be used in the bleaching solution, bleach-fixing solution, and their prebaths, if necessary.

Specific examples of bleaching accelerators for use are described in the following specifications: US Pat. Kaisho 53-32736, Kaisho 53-57831, Kaisho 3
No. 7418, No. 53-65732, No. 53-7262
No. 3, No. 53-95630, No. 53-95631,
No. 53-104232, No. 53-124424, No. 53-141623, No. 53-28426, Research Disclosure No. 17129 (197
Compounds having a mercapto group or disulfide group as described in JP-A No. 140129/1983; Thia-I'lysine derivatives as described in JP-A No. 50-140129;
-8506, JP-A No. 52-20832, JP-A No. 53-3
No. 2735, thiourea derivatives described in US Pat. No. 3.706.561; iodides described in West German Patent No. 1.127.715, JP-A-58-16235; West German Patent No. 9
66,410, polyethylene oxides described in 2.748.430; polyamine compounds described in Japanese Patent Publication No. 45-8836; and other JP-A No. 49-4243
No. 4, No. 49-59644, No. 53-94927,
Compounds described in Japanese Patent Nos. 54-35727, 55-26506 and 58-163940, as well as iodine and bromide ions can also be used.

Among these, compounds having a mercapto group or a disulfide group are preferred from the viewpoint of a large promoting effect, and are particularly preferred, as disclosed in U.S. Pat.
No. 12 and JP-A-53-95630 are preferred. Furthermore, compounds described in US Pat. No. 4,552,334 are also preferred. These bleach accelerators may be added during sensitization. These bleach accelerators are particularly effective when bleach-fixing color light-sensitive materials for photography.

Examples of the fixing agent include thiosulfates, thionanates, thioether compounds such as thioureas, and a large amount of iodides, but one use of thiosulfates is generally used. As the preservative for the bleach-fix solution and the fix solution, sulfites, bisulfites, or carbonyl bisulfite adducts are preferred.

After the bleach-fixing treatment or the fixing treatment, a washing treatment or a stabilization treatment is usually performed. During the washing process and stabilization process, various known compounds may be added for the purpose of preventing precipitation and saving water. For example, to prevent precipitation,
Water softeners such as inorganic phosphoric acid, aminopolycarboxylic acid, organic aminopolyphosphonic acid, and organic phosphoric acid, killing agents and anti-spiking agents that prevent the growth of various bacteria, algae, and mold, magnesium salts, and bismuth aluminum salts. Metal salts represented by salts, surfactants for preventing drying load and unevenness, various hardening agents, etc. can be added as necessary. Or Photographic Science and Engineering by West (L, E, Wes
t 5 Photo, Sci, Sneng,), Volume 6, 34
Compounds described on pages 4 to 359 (1965) may also be added. The addition of xylate agents and anti-piping agents is particularly effective.

In the washing process, two or more tanks are generally used for countercurrent washing to save water. Furthermore, instead of the water washing process,
A multi-throw countercurrent stabilization treatment step as described in No.-8543 may also be implemented. In the case of this step, 2 to 9 countercurrent columns are required. In addition to the above-mentioned additives, various compounds are added to this stabilizing bath for the purpose of stabilizing images. For example, membrane +
11H%, various buffers (e.g. borate, metaborate, borax, phosphate, carbonate, potassium hydroxide, sodium hydroxide) for adjusting J (e.g. pH 3 to 9),
Typical examples include ammonia water, monocarboxylic acid, dicarboxylic acid, polycarboxylic acid, etc.) and aldehydes such as formalin. In addition, chelating agents (inorganic phosphoric acid, aminopolycarboxylic acid, organic phosphoric acid, organic phosphonic acid, aminopolyphosphonic acid, phosphonocarboxylic acid, etc.), pesticides (benzisothiazolinone, irithiazolone, Various additives such as 4-thiazoline (benzimidazole, halogenated phenol, sulfanilamide, benzotriazole, etc.), surfactants, fluorescent brighteners, hardeners, etc. may be used for the same or different purposes. Two or more kinds of compounds may be used in combination.

In addition, ammonium chloride,
It is preferable to add various ammonium salts such as ammonium chloride, ammonium sulfate, ammonium phosphate, ammonium sulfite, and ammonium thiosulfate.

Furthermore, in the case of color photosensitive materials for shadows, the normally performed post-fixing (washing-stabilization) process can be replaced with the above-mentioned stabilization process and water-washing process (water-saving treatment). At this time, when the magenta coupler is 2 equivalents, even if the formalin in the stabilizing bath is removed, the water washing and stabilization processing time of Yoshiki's invention varies depending on the type of photosensitive material and processing conditions, but is usually 20 seconds or more. The duration is 10 minutes, preferably 20 seconds to 5 minutes.

The silver halide color light-sensitive material of the present invention may contain a color developing agent for the purpose of simplifying and speeding up processing. In order to incorporate it, it is preferable to use various precursors of the color phenomenon drug.

For example, indoaniline compounds described in U.S. Pat. No. 3,342,597, U.S. Pat. 3.342.599, Research Disclosure No. 14850 and Research Disclosure No. 15159
Schiff base-type compounds described in No. 13924, aldol compounds described in U.S. Pat. No. 13924, metal salt complexes described in U.S. Pat. Showa 56-6235
No. 56-16133, No. 56-59232, No. 56 67342, No. 56-83734, No. 56
No. 83735, No. 56-83736, No. 56-397
No. 35, No. 56-81837, No. 56-54430, No. 56-106241, No. 56-107236,
Examples include various salt-type precursors described in Japanese Patent No. 57-975'31 and Japanese Patent No. 57-83565.

The silver halide color light-sensitive material of the present invention may contain various 1-phenyl-3-pyrazolidones, if necessary, for the purpose of promoting color rings. No. 56-64339, No. 57-1' 445
No. 47, No. 57 = No. 211147, No. 58-5053
No. 2, No. 58-50536, No. 58-50533,
It is described in No. 58-50534, No. 58-50535, No. 58-115438, etc.

Various treatment liquids in the present invention are used at 10°C to 50°C. A temperature of 33°C to 38°C is standard, but higher temperatures can be used to accelerate the processing and shorten the processing time.
Conversely, it is possible to improve the image quality and the stability of the processing solution by lowering the temperature. In addition, West German Patent No. 2,226.770 or US Patent No. 3.
Treatment with cobalt intensification or hydrogen peroxide intensification as described in No. 674.499 may also be carried out.

A heater, a temperature sensor, a liquid level sensor, a circulation pump, a filter, a floating pig, a squeegee, etc. may be provided in the various processing baths as necessary.

Further, during continuous processing, a constant finish can be obtained by using a replenisher for each processing solution to prevent fluctuations in the solution composition. The replenishment amount can be reduced to half or less than the standard replenishment amount to reduce costs.

Example 1 On a subbed cellulose triacetate film support,
Sample 101, which is a multilayer color light-sensitive material having each of the compositions shown below, was prepared.

(Composition of photosensitive layer) The sensitizing dye is expressed in moles per mole of silver oxide in the same layer.

1st layer (antihalation layer) Black colloidal silver...0.2g/m'Gelatin...1.3g/m'Colored coupler C-1...0.06g/m'Ultraviolet absorber UV-1 ...0.1g/m' Same as above UV-2
-・-0,2g/m'limb oil Oil -1...0
．． 01cc/m' Same as above Oil -2...0.0
1cc/m' Second layer (intermediate layer) Fine grain silver bromide (average particle size 0.0?t-t)...0.
15g/m' gelatin...
1.0g/m' colored coupler C-2...0.02
g/m'intermittent; ril○II -1...0.1 c
c/m' Third layer (first red-sensitive emulsion layer) Silver iodobromide emulsion (silver iodide 2 mol%, average grain size 0.3 p)...80.4 g
/ m'gelatin...0.6
g/m″ Sensitizing dye I...1.OX
l0-' Sensitizing dye■...3. OX
l0-'sensitizing dye m...l
Xl0-'Coupler C-3,"・0.06g/rn'Coupler C-4"・0.06g/rn'Coupler C"'
"・0.04g/m' coupler (-2・
・・0.03g/m' Dispersion oil ○ll-1---0
,03cc/m' Same as above Oil -3...0.0
12cc/m' Fourth layer (second red-sensitive emulsion layer) Silver iodobromide emulsion (15 mol% iodide, average grain size 0.5μ) ''・0.7 g/m'
Sensitized color I dye ... I Xl0-'
Sensitizing dye ■... 3 Xl0-'
Sensitizing dye ■...l Xl0-'
Coupler C-3"・0.24g/m' Coupler C-4...0.24g/m'Coupler C-8
"・0.04g/m'Coupler C-2...0.04
g/m'min ifk, oil -1"・0.15
cc/m' Same as above Oil -3...0.02cc
/m' 5th layer (third red-sensitive emulsion layer) Silver iodobromide emulsion (silver iodide 10 mol%, average grain size 0.7μ)...Average 1.0g/m'' Gelatin...1. 0g/m'' Sensitizing color accumulation ■ ... I Xl0-' Sensitizing dye ■ ... 3 Xl0-' Sensitizing dye ■ ... I Coupler C-7...0.1 g/m' Dispersion oil oil -1...0.01 cc/m' Same as above 0"2" 0.05 cc/m'
6th layer (middle layer) Gelatin...1. Og/m' compound Cpd-A = 0.03g/
m'limb oil Oil -1...0.05cc/m
'7th layer (first green-sensitive emulsion layer) Silver iodobromide emulsifier (silver iodide 4 mol%, average grain size 0.3/J)...OJOg
/ m'sensitizing dye ■ ・・・ 5
Xl0-'sensitizing dye ■...0.3
XIO-'sensitizing dye■...2
Xl0-'gelatin...1.0g
/m'Coupler C-9...0.2g/m'Coupler C-5...0.03g/m'Coupler C-1
"・0.03g/m' Dispersion oil 0il-1...Q, 5cc/m' 8th layer (
Second edge-sensitive emulsion layer) Silver iodobromide emulsion (silver iodide 5 mol%, average grain size 0.:1 g) ...0.4 g/
m'sensitizing dye ■... 5 Xl0
-'Sensitizing dye ■... 2 Xl0
-'Sensitizing dye■...OJ Xl0
-'Coupler C-9''・0.25g/m'Coupler C-1...0.03g/m'Coupler C-1
0...0.015g/m' coupler C-5...0.
O1g/m' Dispersion oil Qil -1...Q, 2 c
c/ m' 9th layer (second green-sensitive emulsion eyebrow) Silver iodobromide emulsion (silver iodide 6 mol%, average grain size 0.7 μ) ... Silver 0.85 g/rn
'Gelatin...1. Og/m″ Sensitizing dye■...3.5 Xl0-'
Sensitizing dye ■...1.4 Xl0-
'Coupler C-11''・0.01g/m'Coupler C-
12"・0.03g/m' coupler C13"・0.
20g/m' coupler C-1...0.02g/m' coupler C-1
5...0.02g/m' dispersion oil Oil -1.
・・0.20cc/m' Same as above Oil -2・・
・0.05cc/m' 1st O layer (yellow filter single layer) Gelatin...1.2g/m''Yellow colloidal silver...0.08g/m'Compound Cpd-B...0.1 g/m '
Dispersion oil ○il -1...OJ cc/m'11th
Layer (first blue-sensitive emulsion layer) Monodispersed silver iodobromide emulsion (silver iodide 4 mol%, average grain size 0.3
μ) ...Silver 0.4g/m'gelatin
...1.0g/m'' sensitizing dye■
... 2 Xl0-' coupler C-14...
・0.9 g/m' coupler C-5"・0.07 g
/m' Dispersion oil Oil -1...0.2 cc/m
'12th layer (second blue-sensitive emulsion layer) Silver iodobromide (silver iodide 10 mol%, average grain size 1.5μ)...Silver 0.5g/m''Gelatin...0.6g/m 'Sensitizing dye ■ ... I Xl0-'Coupler C-14 = 0.25g/m'' Dispersion oil O+I
-1...0.07cc/m' Thirteenth layer (first protective layer) Gelatin...018g/m' Ultraviolet absorber UV -1"/0.1 g/m' Same as above
UV-2...-0,2g/m' dispersion oil Oil -1
...O, 01cc/m' Dispersion oil Oil -2・
...0.01cc/m' 14th layer (second protective layer) Fine grain silver bromide (average particle size 0.07μ) ...0.5g/m' Gelatin ...0.45g/m' Polymethyl Methacrylate particles (diameter 1.5μ)...0.2g/m' Hardener H-1...0.4g/m'' Formaldehyde scavenger S-1...0.5g
/m' Formaldehyde scavenger S-2...0.5g
/m'' In addition to the above ingredients, a surfactant was added to each layer as a coating aid.The samples prepared as described above were used as sample 10.
It was set to 1.

Next, the chemical structural formulas or chemical names of the compounds used in the present invention are shown below: (J
U.

atsu1c'' Q ν ^
==
Q ′Q
■ , Il 1 t I=
(J-(J) This photographic element was exposed to 25 CMS using a tungsten light source with a color temperature adjusted to 4800°K with a filter, and then processed at 38°C according to the processing steps described below.

Color development 3 minutes 15 seconds Bleaching 6 minutes 30 seconds Water
Wash for 2 minutes and fix for 10 seconds.
Wash with water for 4 minutes and 20 seconds
Stable for 3 minutes 15 seconds 1 minute 05
The composition of the treatment liquid used in each step was as follows.

Color developer Diethylenetriaminepentaacetic acid 1.0g 1-hydroxyethylidene-1,l-diphosphonic acid 2.0g Sodium sulfite 4.0g Potassium carbonate
30.0 g potassium bromide
1.4g potassium iodide 1.3
mg Hydroxylamine sulfate 2.4 g 4-(N-ethyl-N-β-hydroxyethylamino)-2 monomethylaniline sulfate 4.5 g Add water
1.0R pH 10.0 Bleach solution Ethylenediaminetetraacetic acid ferric ammonium salt 100.0 g Ethylenediaminetetraacetic acid disodium salt t 0.0 g Ammonium bromide 150.0 g Ammonium nitrate l O, Og Add water
1.01p86.0 Fixer Ethylenediaminetetraacetic acid disodium salt 1.0g Sodium sulfite 4.0g Ammonium thiosulfate aqueous solution (70%) 175.0ml Sodium bisulfite 4.6g Add water
1.01 pH 6.6 Stabilizing liquid formalin (40%) 2.0 m 1 Polyoxyethylene-p-monononylphenyl ether (average degree of polymerization 10) 0.3 g Add water 1. Oj! Sample 102-1
No. 12 Preparation Sample 101 was prepared by changing the emulsion and dry film thickness of the 8th layer, 11th layer, and 12th layer (the amount of gelatin was decreased by a fixed ratio in each layer) as shown in Table 1.

The aspect ratio and Ag+ content of the emulsion used are as follows.

Emulsion salt Usage layer Aspect ratio Ag+ content (mol%
)L 12th shoe 10M 11th layer 4N 8th layer
5 0 12th layer 8 10P 11th
Layer 94 Q 8th Layer 85 The obtained sample was exposed to light through an MTF pattern in the same manner as in Example 1, and the following development treatment was performed, and the MTF of the green-sensitive layer and the red-sensitive layer was measured. The results obtained are shown in Table 1.

As is clear from Table 1, in the samples of the present invention, when a flat emulsion was used, there was no decrease in MTF in the low frequency range, and furthermore, the degree of increase in MTF in the high frequency range was high.

Example 2 On a cellulose triacetate film support with a bottom plate,
A multilayer color photosensitive material consisting of each layer having the following composition was prepared and designated as sample 201.

1st layer: Antihalation layer Black colloidal silver 0.25 g/m' Ultraviolet absorber U I 0.04 g/m' Ultraviolet absorber U2 0.1 g/m' Ultraviolet absorber U-30,1
g/m” Gelatin layer containing high boiling point organic solvent ○!I-20,01cc/rn' (dry film thickness 2μ) 2nd layer: Intermediate layer compound CpdC0,05g/m' Compound I-10,05g/m' Gelatin layer containing high boiling point organic solvent ○1f-10,05cc/m' (dry film thickness 1μ) 3rd layer: 1st red-sensitive emulsion layer Odor spectrally sensitized with sensitizing dyes S-t and S-2 Silveride emulsion (average grain size 0.3μ Ag [content 4 mol%) Silver amount...0.5g/m' coupler CI 0.2g/m'' coupler
C-20,,05g/m' Compound 1-2'
2X10-'g/m' High boiling point organic solvent ○1f-I
Q, gelatin layer containing 12 cc/m' (dry film thickness l
μ) 4th layer: 2nd red-sensitive emulsion layer Silver bromide emulsion spectrally sensitized with sensitizing dyes S-1 and S-2 (average grain size 0.6 μ, Ag [content 3 mol%) Silver amount ・...0.8g/m' Coupler C-10,55g/m' Coupler C-20,14g/m' Compound 1-2 1XIO-'g/m' High boiling point organic solvent 0th-10,33cc/m' Dye D
- Gelatin layer containing 10,02 g/m' (dry film thickness 2,5 μ) Fifth layer: Interlayer compound CpdCO, 1 g/m' High boiling organic solvent 0il - 10,1 cc/m' dye
Gelatin layer containing D-20.02g/m' (dry film thickness 1μ) 6th layer: first green-sensitive emulsion layer Silver iodobromide emulsion containing sensitizing dyes S-3 and S-4 (
Average particle size 0.3 μm, Ag [content 4 mol%] Silver content...0.7 g/m' Coupler C-30, 20 g/m' Coupler C-50, 10 g/m' High boiling point organic solvent ○ + 1 1 Gelatin layer containing 0.26 cc/m' (dry film thickness 1μ) Seventh layer: Second green-sensitive emulsion layer Silver iodobromide emulsion containing sensitizing dyes S-3 and S-4 (
Average particle size 0.6 μml Ag + content 2.5 mol%) Silver amount...0.7 g/m' Coupler C-40, 10 g/m' Coupler C-50, 10 g/m' High boiling point organic solvent Oil -20 ,05cc/m' dye
Gelatin layer containing D-30.05g/m' (dry film thickness 2.5μ) 8th layer: Intermediate layer compound CpdC0.05g/m' High boiling point organic solvent Oil -29.1 cc/m' Dye D-4
Gelatin N containing 0.0Lg/m' (dry film thickness 1μ) 9th eyebrow: yellow filter, more yellow colloidal silver 0.1g/m' compound
CpdC0,02g/m' Compound CpdB (same as Example 0.03g/m'1) Gelatin layer containing high boiling point organic solvent Oil -10,04cc/m' (dry film thickness lμ) 10th layer: 1st blue Sensitive emulsion layer Silver iodobromide emulsion containing sensitizing dye S-5 (average grain size 0.
3 μm, Ag [content 2 mol%] Silver amount...0.6 g/
m'' coupler C-60,1g/m' coupler C-70,4g/m' gelatin layer containing high boiling point organic solvent 0il-10,1cc/m' (dry film thickness l, 5μ) 11th layer: 2nd Blue-sensitive emulsion layer Silver iodobromide emulsion containing sensitizing dye S-6 (average grain size 0.
6 μm, Agl content 2 mol%) Silver 1 -.-1,1 g/m' Coupler C60,4 g/m' Coupler C-80,8 g/m' High boiling point organic solvent 0il-10,23 cc/m' Dye
Gelatin layer containing D-50,02g/m' (dry film thickness 3μ) 12th layer: 1st protective layer UV absorber U-10,02g/m' Ultraviolet absorber U-20,32g/m' Ultraviolet absorber Gelatin layer containing agent U-30,03 g/m' high boiling point organic solvent 0 il-20,28 cc/m' (dry film thickness 2μ) 13th layer: Fine grain silver iodobromide emulsion covered with the surface of the second protective layer Silver content: 0.1 g/m' (Iodine content: 1 mol%, average particle size: 0.06 μm) Gelatin layer containing polymethyl methacrylate particles (average particle size: 1.5 μm) (dry film thickness: 2.5 μm) Each layer In addition to the above composition, gelatin hardener H-1 (same as in Example 1) and a surfactant were added.

The compounds used to prepare the samples are shown below.

t-Cs1l□ t-(:siI□ C0NI+, ゝ--
--- HO □, t'caLt \□/' C-7 NHSO, C, 6) 133 , □: COOC3H-(i) 0to1 Compound I-1 Compound 1-2 t-C411s l-2 C, d C ○I” ω ゝWi ■Wi
narrow ω ωs U3K
5 03 and D-5 Note that the high boiling point organic solvents Oi1-1 and 2 are the same as those used in Example 1.

All of the emulsion grains used in sample 201 were composed of multiple twins and had an aspect ratio of 3 or less (emulsion A for the 11th layer, emulsion B for the 10th layer, emulsion C for the 7th layer, emulsion D for the 4th layer). ). Moreover, the dry film thickness (hereinafter referred to as d) of the 3rd M to 13th layers was 19.0 μm.

0i1- from the third layer to the 12th layer in sample 201
By removing 1.0i 1-2 and further reducing the amount of gelatin applied from each layer at a constant ratio, d = 16.0 μm.
Sample 202 was created.

Sample 203 with d = 13.5 μm was prepared by reducing the amount of gelatin applied in the third to twelfth layers of sample 202 and matching the oil-soluble content/gelatin ratio in each layer to sample 201.

The following tabular emulsion giving the same sensitivity as the 4th layer, 7th layer, 10th layer and 11th layer of sample 201 was prepared using a known method and designated as emulsion E-L.

Emulsion name Layer used Aspect ratio Ag+ content (mol%
)E 4th layer 83 F 7th layer 82.5 6 1st O layer 52.0 1-1 〃8 ” 1 //12 ” J 1st f layer 5 “K 〃
8 〃L 〃12
Samples 201 to 236 obtained using emulsions C to 1A were each exposed to white wedge light and subjected to the following development treatment.

Processing step 1 Time Temperature Development 6 minutes 38℃ water washing
2 minutes 7 reversals 2
Minutes 〃Color development 6 minutes
〃J,! I Adjustment 2 minutes 〃Bleaching
6 minutes Arrive 4
Minutes Wash with water at 38℃ 4 minutes
! / stable 1 minute constant
The composition of the wet-drying solution used is as follows.

No.-Developer water 70
0ml 1' nitrilo-N,N,N-)limethylenephosphonic acid pentatrilam salt 2g Sodium sulfite 20g Hydroquinone monosulfonate 30g Sodium carbonate (-hydrate) 30g 1-Fe-4-methyl-4- Hydroxymethyl-3-pyrazolidone 2g Potassium bromide 2.5g Potassium thiocyanate 1.2g Potassium iodide (0.1% solution) 2rr+j! Water work 1000 m
1 Inverted liquid water 7
00 ml nitrilo-N,N,N-1-lytyrenephosphonic acid pentatrilam salt 3g stannous chloride (
Trihydrate) Igρ ~ Aminophenol
0.1g sodium hydroxide
88 glacial acetic acid 15m
2 Add water to 10100 O' color developer water 7
00mj7 Nitrilo N, N, N-) lytyrenephosphonic acid pentatrilam salt 3g sodium sulfite 7g tertiary sodium phosphate (
12 hydrate) 36g potassium bromide
1g potassium iodide (0.1% solution) 90
mg Sodium hydroxide 3g Citrazic acid 1.5g N-ethyl-N
-(β-methanesulfonamidoethyl)- 3-methyl-4-aminoaniline sulfate 11 g3.6-cythiaoctane-1°8-diol 1 g Add water
1000ml Adjustment liquid water 700
mA Sodium sulfite 12 g Sodium ethylenediaminetetraacetate (trihydrate) 8 g Thioglycerin 0.4 ml Glacial acetic acid
Add 3mN water
10100O bleach solution water 800
mj' Sodium ethylenediaminetetraacetate (trihydrate) 2g Ethylenediaminetetraacetate iron(III) ammonium (trihydrate) 1213g
Potassium bromide 100g Add water to 1000ml constant active liquid water 80
0mj! Sodium thiosulfate 80.0g
Sodium sulfite 5.08Sodium bisulfite 5.0g Add water 1O1
00O Stable liquid water 800
m1 Formalin (37% by weight L) 5.0ml Fuji Drywell (surfactant made by Fujifilm) Add 5.0mf water 10100O!Color reversal sensitivity is from the lowest density to the density 0.2 larger F-mouth exposure amount The sharpness was measured based on the MTF value.The results are shown in Table 2 below.

As is clear from the above results, by using tabular grains with an aspect ratio of 5 or more in at least one of the emulsion layers that are substantially photosensitive, and by setting the d value to 16μ or less, The MTF value also improved significantly.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing the relationship between MTF and spatial frequency of a photographic material. 1. The scope of claims is amended as shown in the attached sheet. Procedural amendment document Showa year, month, day 1, case description 1986 patent application No. 109773
No. 2. Masterpiece of invention Silver halide color photographic light-sensitive material 3. Relationship with the case of the person making the amendment Applicant name (520) Fuji Photo Film Co., Ltd. 4.
Agent address: 3-3-1 Marunouchi, Chiyoda-ku, Tokyo Telephone number: 211-8741 6. Subject of amendment: Scope of claims and Detailed description of the invention column 7 of the specification: Contents of amendment 3. "Tabular shape...4," on page 10, lines 1 and 2.
Replace Table-1 on page 62 with the following Table-1. 5. Replace Table 2 on pages 85 and 86 with the following Table 2. Claims (1) One or more red-sensitive silver halide emulsion layers containing at least one dye image-forming compound on a support;
It has a green-sensitive silver halide emulsion layer and a blue-sensitive silver halide emulsion layer, and at least 50% of the total projected area of the silver halide grains contained in at least one of the emulsion layers has a thickness of 0.5 μm. less than or equal to at least 0.6 in diameter
μm, occupied by tabular/'% silver halide grains with an average aspect ratio of 5 or more, and the emulsion film thickness including the protective layer to the photosensitive layer closest to the support is 16 μm or less. A silver halide color photographic light-sensitive material. (2) The silver halide color photographic material according to claim 1, wherein the silver halide grains have an average aspect ratio of 5 or more and less than 8. (3) The silver halide color photographic material according to claim 1, wherein the silver halide grains have an average aspect ratio of 8 or more. (4) The silver halide color photographic light-sensitive material according to claim 1, wherein the blue-sensitive, green-sensitive, and red-sensitive emulsion layers consist of two or three identical color-sensitive layers. (5) The silver halide color photographic light-sensitive material according to claim 2, wherein the blue-sensitive, green-sensitive, and red-sensitive emulsion layers consist of two or three layers of the same color sensitivity. (6) The silver halide color photographic light-sensitive material according to claim 3, wherein the blue-sensitive, green-sensitive, and red-sensitive emulsion layers consist of two or three layers of the same color sensitivity.

Claims (6)

[Claims] (1) having one or more red-sensitive silver halide emulsion layers, green-sensitive silver halide emulsion layers, and blue-sensitive silver halide emulsion layers containing at least one dye image-forming compound on a support; At least 5 % of the total projected area of silver halide grains contained in at least one emulsion layer
0% less than 0.5μm thick and at least 0.6μm in diameter
m, a halogen characterized by being occupied by tabular silver halide grains having an average aspect ratio of 5 or more and having an emulsion film thickness of 16 μm or less including the protective layer to the photosensitive layer closest to the support. Silver chemical color photosensitive material. (2) The silver halide color photographic material according to claim 1, wherein the silver halide grains have an average aspect ratio of 5 or more and less than 8. (3) The silver halide color photographic material according to claim 1, wherein the silver halide grains have an average aspect ratio of 8 or more. (4) The silver halide color photographic light-sensitive material according to claim 1, wherein the blue-sensitive, green-sensitive, and red-sensitive emulsion layers consist of two or three layers of the same color sensitivity. (5) The silver halide color photographic light-sensitive material according to claim 2, wherein the blue-sensitive, green-sensitive, and red-sensitive emulsion layers consist of two or three layers of the same color sensitivity. (6) The silver halide color photographic light-sensitive material according to claim 1, wherein the blue-sensitive, green-sensitive, and red-sensitive emulsion layers consist of two or three layers of the same color sensitivity.