JPS6172236A - Silver halide color photographic sensitive material - Google Patents

Abstract

PURPOSE:To obtain excellent image quality which is not spoiled in gradation and developability by specifying the average grain size of the silver halide of a blue sensitive silver halide emulsion layer and the silver bromide contents of the silver halide of green and red sensitive silver halide emulsion layers and incorporating a compd. which releases a development suppressable material or precursor thereof into the photographic constituting layer. CONSTITUTION:The photographic constituting layer contg. at least the blue sensitive silver halide emulsion layer, green sensitive silver halide emulsion layer and red sensitive silver halide emulsion layer is provided on a reflective base. The average grain size of the silver halide of the blue sensitive silver halide emulsion layer is 0.20-0.55mum and the silver bromide contents of the silver halide of the green sensitive silver halide emulsion layer and red sensitive silver halide emulsion layer are 5-65mol%. At least one of the compd. which reacts with the development suppressing material or the precursor thereof by reacting with the oxidant of a color developing agent is incorporated into at least one layer of the photographic constituting layer.

Description

[Detailed description of the invention] [Industrial use! ! 7] The present invention relates to a silver halide color photographic material, and more particularly to a silver halide color photographic material having excellent image quality.

In general, silver halide color photographic light-sensitive materials have three types of photographic silver halide emulsion layers selectively sensitized to have sensitivity to blue light, green light, and red light, coated on a support. ing. For example, in silver halide photographic materials for color negatives, generally a blue-sensitive silver halide emulsion layer, a green-sensitive silver halide emulsion layer, and a red-sensitive silver halide emulsion layer are coated in this order from the exposed side. A bleachable yellow filter layer is provided between the blue-sensitive silver halide emulsion layer and the green-sensitive silver halide emulsion layer to absorb the blue light that passes through the blue-sensitive silver halide emulsion layer. It is provided. Further, each emulsion layer is provided with other intermediate layers for various special purposes, and a protective layer as the outermost layer. Furthermore, for example, in a silver halide photographic light-sensitive material for color photographic paper, a red-sensitive silver halide emulsion layer, a green-sensitive silver halide emulsion layer, and a blue-sensitive silver halide emulsion layer are generally arranged in this order from the exposed side. It is painted with
Similar to silver halide photographic materials for color negatives, intermediate layers such as an ultraviolet absorbing layer, protective layers, etc. are provided for each specific purpose. It is also known that each of these silver halide emulsion layers is provided in a different arrangement from the above, and furthermore, each silver halide emulsion layer is sensitive to substantially the same wavelength range for each color light. It is also known to use a photosensitive silver halide emulsion layer consisting of two layers. In these silver halide color photographic materials, exposed silver halide grains are developed using, for example, an aromatic primary amine color developing agent as a color developing agent, and the resulting color developing agent is oxidized. A dye image is formed by reaction of the product with the dye-forming coupler.

In this method, phenolmodic, hanaphthol-based cyan couplers, 45-pyrazolones, pyrazolinobenzimidazoles, pyrazolotriazoles, indacylones or cyano-pyrazolones are typically used to form cyan, magenta and yellow dye images, respectively. An acetyl magenta coupler and an acylacetamide yellow coupler are used. These dye-forming couplers are contained in a light-sensitive silver halide emulsion layer or in a developer.6 The present invention is a color in which these couplers are preliminarily contained in a silver halide emulsion layer and rendered non-diffusible. This invention relates to a silver halide photographic material for photographic paper.

[Prior Art] In recent years, there has been a demand in the industry for silver halide color photographic materials that can be processed quickly, have high image quality, have excellent processing stability, and are low cost.
In particular, silver halide color photographic materials that can be rapidly processed are desired.

In other words, silver halide color photographic light-sensitive materials are subjected to running processing in automatic processing machines installed in each laboratory, but as part of an effort to improve service to users, processing is carried out on the same day that processing is received. In recent years, it has become necessary to process and return the material to the user within a few hours of receipt, and there is an urgent need to develop silver halide color photographic materials that can be processed even more rapidly. It's broken. Furthermore, in running processing, there is a problem in that photographic properties vary greatly between laboratories or even within the same laboratory due to changes in the composition of the processing solution and fluctuations in conditions, making it impossible to obtain stable photographic performance. Such changes in the composition of the processing solution and fluctuations in conditions are thought to be due to elution and accumulation of photographically active substances from the light-sensitive material during development processing (running), and other causes.

Therefore, in order to respond to variations in processing conditions, it is required that the development time, temperature and pH of the developer, as well as the halogen concentration, especially the bromine ion concentration, etc. in the developer are highly controlled. However, compared to the development time or the temperature and pH of the developer, the bromine ion concentration in the developer is difficult to quantify and difficult to measure, making it difficult to control.

Therefore, it is particularly necessary to develop a highly process-stabilized silver halide color photographic light-sensitive material whose photographic performance is less dependent on bromine concentration. Processing stability is a problem even with current processing times, but processing stability becomes more of a problem in rapid processing. Furthermore, it is a matter of course that such processing-stabilized silver halide color photographic materials are required to be economically provided at low cost.

Accordingly, the inventor of the present invention first developed a silver halide color photographic light-sensitive material, which can be rapidly processed, has high image quality, has excellent processing stability, and is low in cost. Proposed.

As a result of continuing research on the previously proposed technology, the present inventor found that
It was found that there is room for further improvement in terms of image quality.

In particular, in recent years, high-quality silver halide color photographic light-sensitive materials have been desired in this industry. In the so-called color negative/positive system in which a final image is obtained by printing on a paper, a problem arises in that the image quality of silver halide photographic materials for color photographic paper is poorer than that of silver halide photographic materials for color negatives.

The reason for the poor image quality of silver halide photographic materials for color photographic paper is considered to be as follows. In other words, since a white reflective support is used, the halation and irradiation caused by light scattering within the reflective support and reflection on the surface of the reflective support during exposure are extremely large. This is the biggest cause.

As a technique for preventing deterioration of image quality due to such halation and irradiation, it is known to provide a colored layer such as an antihalation layer or a filter layer. A technique is known in which a coloring agent such as colloidal silver is added to an alkali-soluble resin or a hydrophilic colloid in such a colored layer. It goes without saying that it must be completely decolored in the processing steps after exposure of the photosensitive material, such as the development step, but it is also required to have excellent spectral absorption and be photochemically inert. .

However, in the case of colloidal silver, it is not always possible to obtain sufficiently favorable spectral characteristics, which has a negative effect on color reproducibility, and also because it is not completely inert from a photographic chemical perspective, it causes undesirable fog in the silver halide emulsion layer. There are some drawbacks.

On the other hand, British Patent No. 584. flu issue, 1,277.42
f3 issue.

JP 48-85130, JP 49-99620, JP 49-114420, JP 49-129537, JP 5
No. 2-108115, No. 59-25845, U.S. Patent No. 2,274,782, No. 2,533,472, U.S. Patent No. 2
, No. 958,879, No. 3,125,448, No. 3,
148.187, 3,177.078, 3,2
No. 47,127, No. 3.540,887, No. 3,57
No. 5,704, No. 3,553,905, No. 3,718
, No. 472, No. 4,071,312, No. 4,070,
It is known that water-soluble dyes such as those described in No. 352 are incorporated into silver halide color photographic materials, but preventing irradiation and halation using such dyes is difficult to achieve good image quality. You can't get it.

In addition, there are also known techniques for improving image quality by roughening the surface of the support by processing the surface of the support, such as in Japanese Patent Application Laid-open No. 48-89731, but the effect of this technique on improving image quality is extremely low. Very little.

Furthermore, mainly for negative silver halide photographic light-sensitive materials, US Pat. No. 3,148,062 and US Pat.
Compounds that couple with oxidized color developing agents to produce dyes and release development inhibitors, such as those described in U.S. Patent No. 27.554, or U.S. Pat.
Although a development inhibitor is released by coupling with an oxidized form of a color developing agent as described in No. 45, there is also a known technique to improve image quality using a compound that does not form a dye (DIR compound). 1. In the structure of conventional silver halide photographic materials for color photographic paper, the use of such IR compounds not only hardly improves the image quality, but also softens the gradation and delays development. This results in the disadvantage of deterioration of developability.

[Problems to be Solved by the Invention] The present invention has been made in view of the above, and aims to provide a silver halide color photographic material that does not impair gradation and developability and has excellent image quality. Take it as a challenge.

[Means for Solving the Problems] The silver halide color photographic material of the present invention which solves the above-mentioned technical problems has at least a blue-sensitive silver halide emulsion layer and a green-sensitive silver halide emulsion layer on a reflective support. In a silver halide color photographic light-sensitive material having a photographic constituent layer including a red-sensitive silver halide emulsion layer and a red-sensitive silver halide emulsion layer, the average grain size of silver halide in the blue-sensitive silver halide emulsion layer is 0.2.
0 to 0.55 gm, the silver bromide content of the silver halide in the green-sensitive silver halide emulsion layer and the red-sensitive silver halide emulsion layer is 5 to B5 mol%, and the It is characterized in that at least one layer contains at least one compound (hereinafter referred to as a DIR compound) that releases a development-inhibiting substance or its precursor by reacting with an oxidized form of a color developing agent.

Here, the photographic constituent layers refer to all hydrophilic colloid layers involved in image formation, such as silver halide emulsion layers, subbing layers, intermediate layers (mere intermediate layers, filter layers, ultraviolet absorption layers, antihalation layers). etc.), protective layer, etc.

The non-invention will be explained in more detail below.

The silver halide contained in the blue-sensitive silver halide emulsion layer of the present invention has an average grain size (average grain size) of 0.20-0.
55gm, preferably 0.30-0.50141. If the average particle size exceeds 0.55g+e, processing stability will be poor, especially when the amount of potassium bromide changes, the deterioration of processing stability will be significant.On the other hand, if the average particle size is less than 0.20gm, blue sensitivity will decrease. The sensitivity of the silver halide emulsion layer is insufficient, resulting in magenta color turbidity.

The average grain size of the silver halide contained in the blue-sensitive silver halide emulsion layer of the present invention can be measured by various methods commonly used in the technical field for the above purpose. Representative methods include Loveland's "Particle Size Analysis Method" A, S, T, M, Symposium Fist-on-Light Φ Microscopy, 1955, 94-!
22 pages or "Theory of the Photographic Process" by Mies and James, 3rd edition, published by Macmillan (1988)
Some of them are listed in Chapter 2 of . This particle size can be measured using the particle's projected area or diameter approximation. If the particles are of substantially uniform shape, the particle size distribution will describe this fairly accurately as a diameter or projected area. be able to.

The silver halide used in the present invention may be a polydisperse emulsion in which the average grain size is distributed over a wide range, but a monodisperse emulsion is preferred.

In the present invention, the above-mentioned monodisperse silver halide grains are those in which most of the silver halide grains appear to have the same shape when the emulsion is observed using an electron microscope, have uniform grain sizes, and have the following formula: It has a particle size distribution as defined. That is, the standard deviation S of the particle size distribution is the average particle size? When divided by , the value is 0.15 or less.

One ≦ 0.15? The grain size here has the same meaning as the grain size described above regarding the average grain size, and in the case of cubic silver halide grains, the length of its side, or in the case of grains with shapes other than cubes, The length of one side when converted to a cube having the same volume, where the individual particle size in this sense is ri and the number is ni, 1 is defined by the following formula. be.

Σni * ri Σni The relationship between particle size distribution is ``Empirical relationship between sensitometric distribution and particle size distribution in photography'' The Photographic Journal, Volume LXXIX (1949) 330
This can be determined by the method described in the article by Tribel and Smith on pages ~338.

The silver halide contained in the green-sensitive silver halide emulsion layer and the red-sensitive silver halide emulsion layer of the present invention is silver chlorobromide, silver chloroiodobromide, or a mixture thereof, silver oxide, A mixture of silver bromide may be used, with a silver bromide content of 5 to 55 mol%. One or both of the edge-sensitive silver halide emulsion layer and the red-sensitive silver halide emulsion layer in the present invention may consist of two or more layers, and in the present invention, the silver bromide content refers to the total green It refers to the total silver bromide content of each layer in the total silver hacodanide contained in each of the photosensitive silver halide emulsion layer and the red photosensitive silver halide emulsion layer. When the silver bromide content exceeds 55 mol%, processing stability deteriorates, causing magenta color turbidity and deterioration of image quality.On the other hand, when the silver bromide content falls below 5 mol%, processing stability deteriorates. Stability deteriorates significantly.

When the silver halide contained in the green-sensitive silver halide emulsion layer and the red-sensitive silver halide emulsion layer of the present invention is silver chloroiodobromide, the silver iodide content does not exceed 2 mol%. Preferably.

The silver bromide content of the green-sensitive silver halide emulsion layer and the red-sensitive silver halide emulsion layer is preferably 20 to 60 mol%, more preferably 30 to 55 mol%.

The silver halide contained in the green-sensitive silver halide emulsion layer and the red-sensitive silver halide emulsion layer of the present invention is also monodisperse like the silver halide contained in the blue-sensitive silver halide emulsion layer. Preferably.

The composition of the silver halide contained in the blue-sensitive silver halide emulsion layer is not particularly limited, and may be silver bromide, silver chlorobromide, silver chloroiodobromide, or a mixture thereof. However, silver chlorobromide is preferable, with a silver bromide content of 30
~85 mol%. Furthermore, the blue-sensitive lX silver halide emulsion layer in the present invention may consist of two or more layers.

The average grain size of the silver halide contained in the green-sensitive silver halide emulsion layer and the red-sensitive silver halide emulsion layer is not particularly limited, but is preferably 0.1 to 2 JLm, more preferably 0.2 to lpm. , particularly preferably from 0.25 to 0.8 lm.

Typical examples of the DIR compounds of the present invention include DIR couplers in which a group capable of forming a compound having a development inhibiting effect when separated from the active site is introduced into the active site of the coupler. 454, U.S. Patent No. 3,227,554, U.S. Patent No. 4.0!35.984,
4,14ia, No. 88111 JP 57-15194
It is stated in No. 4 etc. The above-mentioned DIR coupler has the property that, when subjected to a coupling reaction with an oxidized form of a color developing agent, the coupler core forms a dye while releasing a development inhibitor. Moreover, in the present invention, U.S. Patent No. 3.852.34
No. 5, No. 3,928,041, No. 3.958,993
3,981,959, 4,052,213, JP-A-53-110529, JP-A-54-13333, JP-A-55-161237, etc. Also included are compounds that release a development inhibitor when coupled with the body, but do not form a dye.

Furthermore, JP-A-54-145135 and JP-A-56-1
When reacted with oxidized color developing agents such as those described in No. 14946 and No. 57-154234, the mother nucleus forms a dye or a colorless compound, while the released timing group undergoes an intramolecular nucleophilic substitution reaction. Or so-called timing D, which is a compound that releases a development inhibitor through an elimination reaction.
IR compounds are also included in the invention.

Also, JP-A No. 58-160954, No. 58-16294
Timing DI in which a timing group as described above is bonded to a coupler core that produces a completely diffusible dye when reacted with an oxidized color developing agent described in No. 9.
It also includes R compounds.

According to the present invention, more preferred I) IR compounds can be represented by the following general formulas (I) and (II), and among these, the most preferred DIR compound is a compound represented by the following general formula (I).

General formula CI) Coup-inhibitor In the formula, Coup is a coupler component (compound) capable of coupling with the oxidized form of a color developing agent, such as open-chain ketomethylene compounds such as acylacetanilides and acylacetate esters, pyrazolones, and pyrazolones. Zolotriazoles,
These are dye-forming couplers such as pyrazolinobenzimidazoles, indasilones, phenols, and naphthols, and coupling components that do not substantially form dyes such as acetophenones, indanones, and oxacylones.

In addition, the inhibitor in the above formula is a component C compound which is released by reaction with the color developing agent and inhibits the development of silver halide).
and preferred compounds include benztriazole,
There are heterocyclic compounds and heterocyclic mercapto compounds such as 3-octylthio-1,2,4-triazole and the like.

Examples of the above-mentioned heterocyclic group include a tetrazolyl group, thiadiazolyl group, oxadiazolyl group, thiazolyl group, oxasilyl group, imidazolyl group, triazolyl group, and the like. Specifically, ■-phenyltetrazolyl group, 1-ethyltetrazolyl group,! -(4-hydroxyphenyl)tetrazolyl group,! , 3.4-thiazolyl group,
Examples include 5-methyl-1,3,4-oxadiazolyl group, benzthiazolyl group, benzoxasilyl group, benzimidazolyl group, and 4H-1,2,4-driazolyl group.

In addition, in the above general formula (I), the inhibitor is bonded to the active site of Goup.

In the general formula (II) Coup -TIME-inhibitor, the inhibitor is the same as defined in general formula (I) above. Coup also includes coupler components that form completely diffusible dyes, such as those defined in general formula (I). TIME is represented by the following general formula (m), (
IT), (V) and (Vl), but are not limited to these.

General formula (m) I In the formula, X represents an atomic group necessary to complete the benzene ring or naphthalene ring, Y is 10-1-S-, -
N- (wherein R3 represents a hydrogen atom, an alkyl group or an aryl group), and is bonded to the coupling position. In addition, Rr and R2 each represent the same group as R3 above, but the group -C- is substituted at the ortho position or the position relative to Y, and is bonded to the heteroatom contained in the inhibitor. There is.

General Formula (IT) In the formula, enemy is a group having the same meaning as Y in the general formula (III), and R4 and Rs are also groups having the same meaning as R1 and R2 in the general formula (It[), respectively.

RT is a hydrogen atom, an alkyl group, an aryl group, an acyl group, a sulfone group, an alkoxycarbonyl group, or a heterocyclic residue, and R7 is a hydrogen atom, an alkyl group, an aryl group, a heterocyclic residue, an alkoxy group, or an amino group. , represents an acylamido group, a sulfonamide group, a carboxy group, an alkoxycarbonyl group, a carbamoyl group, a cyan group, and this timing group is bonded to the coupling position of Coup by W, and Rs is then suppressed by an intramolecular nucleophilic substitution reaction. An example of a timing group that releases an agent is shown in general formula (V).

General formula (V) Nu -E In the formula, Nu is a nucleophilic group having an electron-rich oxygen, sulfur or nitrogen atom, and is bonded to the coupling position of Coup. E is an electrophilic group having an electron-poor carbonyl, thiocarbonyl, phosphinyl, or thiophosphinyl group and is bonded to the heteroatom of the inhibitor. V has a steric relationship between Nu and E, and after Nu is released from Coup, it undergoes an intramolecular nucleophilic substitution reaction accompanied by the formation of a 3-membered or 7-membered negative ring, and thereby releases the inhibitor. It is a binding group that can be released.

General formula (Vl) (:oup -0CHz-inhibitor Coup and inhibitor have the same meanings as above.

A typical example of the DI compound according to the present invention will be described below, but the present invention is not limited thereto.

[Exemplary compounds]

-N Oh.

(D-a) 02H.

(D-4) OH (D-s) OH N = N (D-6) (D-7) I XN' (D-10) D-11) OsHy(iso) N, N, rq (D- 13) OH (D-14) CD-15) (D-16) OH NOl (D-17) Kaku (D-18) (D-19) Ro Rororo Ichino
-ノ(D-26) (J)-27) (D-28) 012H, OOC! 0HOOOO, □) f211 (D-
29) L t (D-30) (D-31) H (D-32) (D-33) (D-34) (D-35) (D-37) t (D-38) C1□)] 250000HOOOO1□1]25(D-
39) (D-40) (D-41) H l-1 (D-42) (D-43) (D-44) OH (D-45) 05H,1(t) (D-46) (D -48) (D-49) (ml-50) to χN (D-55) (D-57) (D-58) C2,-5 t (D-60) (D-61) H (D-62 ) H (D-64) OH OH O□H5 (D-66) OH OH (D-67) OH OH (D-68) (D-69) (D-70) (D-71) H (D- 72) (D-73) (D-74) (D-75) (L)-76) H (D-77) H (D-78) H (D-82) (D-83) DIR of the present invention The compound can be added to a light-sensitive silver halide emulsion layer and/or a non-light-sensitive photographic constituent layer, but is preferably added to a light-sensitive silver halide emulsion layer.

Two or more types of DIR compounds of the present invention may be contained in the same layer. The same DIR compound may also be included in two or more different layers.

These DIR compounds are generally preferably present in amounts of 2XIQ to 5X1O-' moles per mole of silver in the emulsion layer.

More preferably, 1X+o-3 to 1X10-6 mol is used.

In order to incorporate these DIR compounds into the silver halide emulsion or other photographic constituent layer coating solution according to the present invention,
If the DIR compound is alkali-soluble, it may be added as an alkaline solution; if it is oil-soluble, it may be added, for example, in U.S. Pat.
No. 801,170, No. 2,801.171, No. 2
, 272,191 and 2,304,940, the DIR compound is dissolved in a high boiling point solvent, optionally using a low boiling point solvent, and dispersed in the form of fine particles. Preferably, it is added to the silver halide emulsion. At this time, if necessary, other hydroquinone derivatives, ultraviolet absorbers, anti-fading agents, etc. may be used in combination. It is also possible to use a mixture of two or more DIR compounds.Moreover, to explain in detail the preferred method of adding DIR compounds in the present invention, one or more of the DIR compounds may be used in combination with other DIR compounds as needed. couplers, hydroquinone derivatives, anti-fading agents and ultraviolet absorbers, as well as organic acid amides, carbamates, esters, ketones,
Urea derivatives, ethers, hydrocarbons, etc., especially di-n-
Butyl phthalate, tritalesyl phosphate, triphenyl phosphate, di-isooctyl azelate,
di-n-butyl sebacate, tri-n-hexyl phosphate), N,N-di-ethyl-caprylamidobutyl,
N,N-diethyl laurylamide, n-pentadecyl phenyl ether, di-octyl phthalate, n-nonylphenol, 3-pentadecyl phenylethyl ether, 2.5-di-5ee-7milphenyl butyl ether, monophenyl-zi-low High-boiling solvents such as chlorophenyl phosphate or fluoroparaffin, and/or methyl acetate, ethyl acetate, propyl acetate, butyl acetate, butyl propionate, cyclohexanol, diethylene glycol monoacetate, nitromethane, carbon tetrachloride, chloroform, cyclohexanetetrahydrofuran, methyl alcohol , acetonitrile, dimethylformamide, dioxane, methyl ethyl ketone, etc., and anionic surfactants such as alkylbenzenesulfonic acids and alkylnaphthalenesulfonic acids and/or nonions such as sorbitan sesquioleate and sorbitan monolaurate. It is mixed with an aqueous solution containing a surfactant and/or a hydrophilic binder such as gelatin, emulsified and dispersed using a high-speed rotating mixer, colloid mill, ultrasonic dispersion device, etc., and then added to a silver halide emulsion.

In addition, the above couplers may be dispersed using a latex dispersion method. The latex dispersion method and its effects are described in JP-A-49-74538, JP-A-51-59943, and JP-A-54.
-32552 Specification Publication and Research Disclosure August 1978, No. 14850, pages 77-79.

Suitable latexes include, for example, styrene, acrylate,
n-butyl acrylate, n-butyl methacrylate,
2-7 Cetoacetoxyethyl methacrylate, 2-(methacryloyloxy)ethyltrimethylammonium methosulfate, 3-(methacryloyloxy)propane-1-sulfonic acid sodium salt, N-isopropylacrylamide, N-(2-(2-methyl- 4-oxopentyl)] acrylamide, 2-acrylamide-2-
Homopolymers, copolymers and terpolymers of monomers such as methylpropanesulfonic acid and the like.

The above DIR compounds are described in U.S. Pat. Nos. 3,227,554, 3,815,508, and 3. f! No. 17,291, No. 3, No. 832.345, No. 3,928,041, No. 3,933,500, No. 3.938.998,
No. 3,958,993, No. 3,981,959, No. 4,048,574, No. 4,052,213, No. 4
．． Of! No. 3,950, No. 4.095,984, No. 4
, No. 149,888, No. 4,234.678, British Patent No. 2,072,3f13, No. 2,070,268,
Research Book Disclosure No. 21228 (1981
), JP-A No. 50-81144, JP-A No. 50-81145
No. 51-13239, No. 51-64927, No. 51-104825, No. 51-105819, No. 5
No. 2-55433, No. 52-82423, No. 52-1
No. 17627, No. 52-130327, No. 52-15
No. 4631, No. 53-7232, No. 53-9116, No. 53-29717, No. 53-70821, No. 5
No. 3-103472, No. 53-110529, No. 53
-135333, 53-143223, 54-
No. 13333, No. 54-49138, No. 54-114
No. 241, No. 57-35858, No. 54-14513
No. 5, No. 55-161237, No. 56-114946
No. 57-154234, No. 57-56837, and Japanese Patent Application Nos. 57-44831 and 57-45809.

The development inhibitor released from the DIR compound of the present invention in accordance with the image density during development suppresses the development in accordance with the image density in one layer, when that layer is a light-sensitive emulsion layer. On the other hand, when the released development inhibitor diffuses into other layers, the development of the other layers is caused to correspond to the density of the image in the diffusion source layer. It is possible to obtain two types of image effects: a so-called inter-sha image effect, such as a suppressing mask effect, and the like.

The DIR compound of the present invention can be added to a light-sensitive silver halide emulsion layer and/or a non-light-sensitive photographic constituent layer.

Preferably, it is contained in at least one silver halide emulsion layer. For example, when applied to a normal multilayer color photographic material having a blue-sensitive silver halide emulsion, a green-sensitive/X silver halide emulsion, and a red-sensitive silver halide emulsion, one or more layers of these may be used. What is necessary is to make it contain.

Although the amount of silver (silver material amount) in the silver halide emulsion layer in the silver halide color photographic light-sensitive material of the present invention is not particularly limited, the total amount of silver in the light-sensitive silver halide emulsion layer is 0.3.
~Ig/m' is preferred. That is, in order to obtain excellent image quality, it is preferable that the silver amount is Ig/rn' or less, while in order to obtain high maximum density and high sensitivity, the silver amount is preferably 0.3 g/m'. It is preferable that it is above.

Silver halide compositions preferably used in the present invention include silver chlorobromide and silver chloroiodobromide. Furthermore, it may be a combinatorial mixture such as a mixture of silver chloride and silver bromide.
That is, in order to achieve fast developability, it is preferable that the halogen composition of the silver halide contains a chlorine atom, and particularly silver chlorobromide or silver chloroiodobromide containing at least 1% silver chloride is preferable. preferable.

The silver halide grains preferably used in the present invention are monodisperse, and can be obtained by any conventionally known preparation method such as an acidic method, a neutral method, or an ammonia method. good.

For example, when growing silver halide grains, p) 1. It is preferable to simultaneously implant and mix silver ions and halide ions in amounts commensurate with the growth rate of silver halide grains, as described in, for example, JP-A No. 54-48521, while controlling pag and the like.

Preferably, the silver halide grains according to the present invention are prepared as described above. A composition containing the silver halide grains is referred to herein as a silver halide emulsion.

These silver halide emulsions contain active gelatin; sulfur sensitizers such as allylthiocarbamide, thiourea, cystine; selenium sensitizers; reduction sensitizers such as stannous salts, urea dioxide, etc. , polyamines, etc.; noble metal sensitizers such as gold sensitizers, specifically potassium aurithiocyanate, potassium chloroaurate, 2-aurothio-3-
Sensitizers such as methylbenzothiazolium chloride or water-soluble salts such as ruthenium, palladium, platinum, rhodium, iridium, etc., specifically ammonium chloroparadate, potassium chlorooleate and sodium chloroparadate (these Depending on the amount, these substances act as sensitizers or fog suppressants. It may also be chemically sensitized (for example, in combination with a sensitizer).

The silver halide emulsion according to the present invention is chemically ripened by adding a sulfur-containing compound, and before, during, or after this chemical ripening, a nitrogen-containing emulsion having at least one hydroxytetrazaindene and mercapto group is produced. It may also contain at least one type of terocyclic compound.

The silver halide used in the present invention is mixed with an appropriate sensitizing dye in an amount of 5 x 10-'' to 3
Optical sensitization may be achieved by adding 0 to 3 moles.

k! Various a-sensitive dyes can be used,
Furthermore, each of the sensitizing dyes may be used singly or in combination of two or more. Examples of the sensitizing dyes that can be advantageously used in the present invention include the following.

That is, as a sensitizing dye used in a blue-sensitive silver halide emulsion layer, for example, the West German patent! 32i3,080, U.S. Patent No. 2,231,858, U.S. Patent No. 2,493,748, U.S. Pat. , No. 959, No. 3,872,897, No. 3,894.217,
No. 4,025,349, No. 4,048,572, British Patent No. 1,242,588, Japanese Patent Publication No. 14030/1973
No. 52-24844, etc. can be mentioned. Further, as a sensitizing dye used in a green-sensitive silver halide emulsion, for example, U.S. Pat.
No. 1, No. 2,072,908, No. 2,739,149
No. 2.945.783, British Patent No. 505,979
Typical examples thereof include cyanine dyes, merocyanine dyes, and composite cyanine dyes as described in No. Further, as sensitizing dyes used in red-sensitive silver halide emulsions, for example, U.S. Pat.
No. 289,234, No. 2,270.3713, No. 2,
No. 442.710, No. 2,454,829, No. 2. ?
711! Typical examples thereof include cyanine dyes, merocyanine dyes, and composite cyanine dyes as described in , No. 280, etc. Furthermore, U.S. Pat. No. 2,213,995', U.S. Pat.
No. 2,519.001, West German patent! Cyanine dyes, merocyanine dyes or composite cyanine dyes such as those described in No. 329,080 can be advantageously used in green-sensitive silver halide emulsions or red-sensitive silver halide emulsions.

These sensitizing dyes may be used alone or in combination, and combinations of sensitizing dyes are often used particularly for the purpose of supersensitization.

Typical examples are U.S. Pat. No. 2,888,545;
! 377, No. 229, No. 3,397,080, No. 3,522,052, No. 3,527.841, No. 3
．． No. 817,293, No. 3,828,984, No. 3.
No. 8138.480, No. 3,872,898, No. 3,
No. 879.4213, No. 3,703,377, No. 3.
? H, No. 301, No. 3,814, No. 603, No. 3,83
No. 7,882, 4.02 [No. 1,707, British Patent 1]
, No. 344.281, No. 1,507,803, Japanese Patent Publication No. 43-4936, No. 53-12375, Japanese Unexamined Patent Application Publication No. 1972
-110618 and No. 52-109925.

The silver halide color photographic material of the present invention may contain a water-soluble dye (AI dye) in the wood-philic colloid layer as a filter dye or for various purposes such as preventing irradiation.

Such dyes include oxonol dyes, hemioxonol dyes, merocyanine dyes and azo dyes.

Among them, oxonol dyes, hemioxonol dyes and merocyanine dyes are useful. Specific examples of dyes that can be used include British Patent No. 584.809, M 1,277.429
No. 48-85130, 49-99620, 49-114420, 49-129537,
No. 52-108115, No. 59-25845, U.S. Patent No. 2,274.782, No. 2,533,472,
No. 2,958,879: No. 3,125,448, No. 3, 148, 187, No. 3,177-. No. 078, No. 3,247,127, No. 3,540,887,
3,575.704, 3,853,905, 3,718,472, 4.071,312, 4
, No. 070,352.

These AI dyes are generally preferably used in an amount of 2XIO-3 to 5 X 10-' moles per mole of silver in the emulsion layer, more preferably IXRO-2 to IXro-' moles
M-6゜The silver halide emulsion layer according to the present invention can contain a coupler other than the DIR compound according to the present invention, that is, a compound capable of reacting with an oxidized product of a color developing agent to form a dye.

The couplers that can be used in the present invention include yellow couplers, magenta couplers, and cyan couplers, without particular limitation. These couplers may be so-called 2-equivalent type couplers or 4-equivalent type couplers, and in combination with these couplers, it is also possible to use diffusible dye-releasing type couplers.

The yellow couplers include open-chain ketomethylene compounds, active point -〇-aryl substituted couplers called so-called two-equivalent type couplers, active point -〇-acyl substituted couplers, active point hydantoin compound substituted couplers, and active point urazole compounds. Substituted couplers and active point succinimide compound substituted couplers, active point fluorine substituted couplers, active point chlorine or bromine substituted couplers, active point -o-sulfonyl substituted couplers, etc. can be used as effective yellow couplers. Specific examples of yellow couplers that can be used include U.S. Patent No. 2,875.057.
No. 3,285,508, No. 3,408,194, No. 3,551,155, No. 3,582,322,
No. 3,725,072, No. 3,891,445, West German Patent No. 1,547,888, West German Application Publication No. 2,219
,11? No. 2,2131.381, No. 2,414
．． No. 00e, British Patent No. 1,425,020, Special Publication No. 1977
No. 1-10783, JP-A-47-28133, JP-A No. 48
-73147, 5l-LO2636, 50-6
No. 341, No. 50-123342, No. 50-1304
42, No. 51-21827, No. 50-87550, No. 52-82424, No. 52-115219, No. 58-95346, and the like.

Examples of the magenta coupler used in the present invention include pyrazolone-based, pyrazolotriazole-based, pyrazoli/benzimidazole-based, and indasilone-based compounds.

These magenta couplers are similar to the yellow couplers 4
A specific example of a magenta coupler that may be not only an equivalent coupler but also a two-equivalent coupler is U.S. Pat.
．． No. 1300.788, No. 2,983,608, No. 3
,082. [No. 153, No. 3,127.28!3, No. 3,311.476, No. 3,419,391, No. f
f, No. 519,429, No. 3.558,319, No. 3
．． 582.322, 3,615.50E1, 3
, No. 834,908, No. 3,891,445, West German Patent No. 1,8to, No. 484, West German Patent Application (OL S)
2,408.6 EiS No. l'q 2,417. !
No. 345, No. 2,418,958, No. 2,424.4
No. 67, JP 40-6031, JP 51-208
No. 26, No. 52-58922, No. 49-129538
No. 49-74027, No. 50-159336,
No. 52-42121, No. 49-74028, No. 50
-60233, 51-25541, 53-55
122, Japanese Patent Application No. 55-110943, and the like.

Furthermore, useful cyan couplers used in the present invention include, for example, phenolic couplers, naphthol couplers, and the like. These cyan couplers may be not only 4-equivalent type couplers but also 2-equivalent type couplers like the yellow couplers. Specific examples of cyan couplers include U.S. Pat. , No. 272, No. 2,474,293, No. 2
, No. 521,908, No. 2,895,828, No. 3,
No. 034,892, No. 3,311.47Ei, No. 3,
No. 458.315, No. 3,478,563, No. 3,5
No. 83,971, No. 3.591,383, No. 3,78
No. 7,411, No. 4,004,92!3, West German Patent No. 1ia (OLS) No. 2,414,830, q 2
, No. 454.329, JP-A-48-59838, No. 5
No. 1-26034, No. 48-5055, No. 51-14
No. 6827, No. 52-69624, No. 52-9093
2, No. 58-95346, and the like.

For the method of adding the above-mentioned coupler that can be used in the present invention into the photographic constituent layer of the present invention, reference can be made to the method of adding the DIR compound described above.The amount added is not limited, but silver 1
Preferably IXIQ-3 to 5 moles per mole, more preferably IXIQ-2 to IXIQ-1.

The silver halide color photographic light-sensitive material of the present invention may contain six other photographic additives, such as antifoggants, stabilizers, and ultraviolet absorbers described in Research Society Disclosure Magazine No. 17643. , color stain prevention agent, optical brightener, color image fading prevention agent, antistatic agent,
Hardeners, surfactants, plasticizers, wetting agents, etc. can be used.

In the silver halide color photographic light-sensitive material of the present invention, the hydrophilic colloids used to prepare the emulsion include gelatin, derivative gelatin, graft polymers of gelatin and other polymers, proteins such as albumin and casein, and hydroxyl colloids. Any of cellulose derivatives such as ethyl cellulose derivatives and carboxymethyl cellulose, starch derivatives, single or copolymer synthetic wood-philic polymers such as polyvinyl alcohol, polyvinylimidazole, and polyacrylamide are included.

Examples of the support for the silver halide color photographic light-sensitive material of the present invention include baryta paper, polyethylene-coated paper, polypropylene synthetic paper, a transparent support provided with a reflective layer or a reflective material, such as a glass plate, and cellulose acetate. , polyester films such as cellulose nitrate or polyethylene terephthalate, polyamide films, polycarbonate films, polystyrene films, etc., and these supports are appropriately selected depending on the intended use of the photosensitive material.

Various coating methods such as dipping coating, air doctor coating, curtain coating, and hopper coating can be used to coat the silver halide emulsion layer and other photographic constituent layers used in the present invention. Also, U.S. Patent No. 2,761
It is also possible to use a simultaneous coating method of two or more layers by the method described in , No. 791, No. 941,898.

In the present invention, the coating position of each emulsion layer can be determined arbitrarily.For example, in the case of a full-color photosensitive material for photographic paper, the blue-sensitive silver halide emulsion layer, the green-sensitive silver halide emulsion layer, and the green-sensitive silver halide emulsion layer are sequentially applied from the support side. It is preferable to arrange a silver emulsion layer and a red-sensitive silver halide emulsion layer, and each of these light-sensitive silver halide emulsion layers may consist of two or more layers.

In the photosensitive material of the present invention, it is optional to provide an intermediate layer with an appropriate thickness depending on the purpose, and a filter layer,
Various layers such as an anti-curl layer, a protective layer, and an antihalation layer can be used in appropriate combinations as constituent layers.

Hydrophilic colloids that can be used in the emulsion layers as described above can be used as binders in these constituent layers, and various types of colloids that can be contained in the emulsion layers as described above can be used in these layers. Photographic additives may be included.

There are no particular limitations on the method of processing photographic materials using the silver halide emulsion according to the present invention.

Any processing method can be applied. Typical examples include a method in which bleach-fixing is performed after color development, followed by further washing and/or stabilization treatment if necessary, and a method in which bleaching and fixing are separated after color development. A method of carrying out further water washing and/or stabilization treatment as necessary; or a method of performing pre-hardening, neutralization, color development, stop-fixing, washing with water, bleaching, fixing, washing with water, post-hardening and washing with water, or color development. A method of developing, washing with water, supplementary color development, stopping, bleaching, fixing, washing with water, and stabilizing in this order.The developed silver produced by color development is subjected to halogenation bleaching, and then color development is performed again to increase the amount of dye produced. The processing may be performed using any method such as a developing method.

The color developing solution used in processing the silver halide emulsion of the present invention is an alkaline aqueous solution containing a color developing agent and preferably having a pH of 8 or more, more preferably 8 to 12. The aromatic primary amine developing agent used as the color developing agent is a compound having a primary amine group on an aromatic ring and has the ability to develop exposed silver halide. Precursors that form such compounds may also be added.

The color developing agent mentioned above is typically p-7 enylenediamine type, and the following are preferred examples.

4-7 minnow N, N-diethylaniline, 3-methyl-
4-amino-N, N-diethylaniline, 4-amino-
N-ethyl-N-β-hydroxyethylaniline, 3-
Methyl-4-amino-N-β-hydroxyethylaniline, 3-methyl-4-amino-N-ethyl-N-β-methoxyethylaniline, 3-methyl-4-amino-N-
Ethyl-N-β-methanesulfonamidoethylaniline, 3-methoxy-4-amino-N-ethyl-N-β-hydroxyethylaniline, 3-methoxy-4-amino-
N-ethyl-N-β-methoxyethylaniline, 3-7
Cetamido 4-amino-N,N-dimethylaniline,
N-ethyl-N-β-[β-(β-methoxyethoxy)
ethoxy]ethyl-3-methyl-4-aminoaniline,
N-ethyl-N-β-(β-methoxyethoxy)ethyl-3-methyl-4-aminoaniline and salts thereof such as sulfates, salts, sulfites, p-)luenesulfonates, etc. .

Furthermore, for example, JP-A-48-64932, JP-A-50-1
No. 31526, No. 51-95849, and Bent et al., Journal of the American Chemical Society, Vol. 73, pp. 3100-3125 (1951).
The ones described above are also listed as representative ones.

The amount of these aromatic primary amino compounds used depends on where the activity of the developer is set, but in order to increase the activity, it is preferable to increase the amount used, and the amount used is 0. It is used in a range from 0,002 mol/liter to 0.7 mol/liter. In addition, two or more compounds may be used in appropriate combination depending on the purpose. For example, 3-methyl-4-amino-N,N-diethylaniline and 3-methyl-4-amino-N-ethyl-N-β- Methanesulfonamidoethylaniline, 3-methyl-4-amino-N
-Ethyl-N-β-methanesulfonamidoethylaniline and 3-methyl-4-amino-N-ethyl-N-β-hydroxyethylaniline, etc. may be used in any combination depending on the purpose.

The color developer used in the present invention further contains various commonly added components, such as alkaline agents such as sodium hydroxide and sodium carbonate, alkali metal sulfites,
Alkali metal bisulfites, alkali metal thiocyanates, alkali metal halides, benzyl alcohol,
A water stopper, a thickening agent, a development accelerator, and the like may optionally be included.

Examples of additives other than the above added to the color developing solution include bromides such as potassium bromide and ammonium bromide;
In addition to compounds for quick processing solutions such as alkali iodide, nitrobenzimidazole, mercaptobenzimidazole, 5-methyl-benzotriazole, 1-phenyl-5-mercaptotetrazole, anti-stain agents, anti-sludge agents, preservatives, There are multilayer effect promoters, chelating agents, etc.

Bleaching agents used in bleaching solutions or bleach-fixing solutions in the bleaching process are generally known to be those in which metal ions such as iron, cobalt, and copper are coordinated with aminopolycarboxylic acids or organic acids such as oxalic acid and citric acid. There is. Representative examples of the above-mentioned 7-minopolycarboxylic acids include the following.

Ethylenediaminetetraacetic aciddiethylenetriaminepentaacetic acidpropylenediaminetetraacetic acidnitrilotriacetic acidiminodiacetic acid ethyl ether diaminetetraacetic acidethylenediaminetetrapropionic acidethylenediaminetetraacetic acid disodium saltdiethylenetriaminepentaacetic acid pentasodium saltnitrilotriacetic acid sodium saltBleaching solution contains various additives along with the above bleaching agents. When a bleach-fixing solution is used in the bleaching step, a solution containing a silver halide fixing agent in addition to the bleaching agent is used. Further, the bleach-fix solution may further contain a halogen compound such as potassium bromide. As with the bleach solution mentioned above, various other additives such as pH buffers, optical brighteners, antifoaming agents, surfactants, preservatives, chelating agents, stabilizers, organic solvents, etc. are added. It may be added or contained.

The silver halide fixing agent is, for example, sodium thiosulfate, ammonium thiosulfate, potassium thiocyanate, sodium thiocyanate, or thiourea, thioether, etc., which react with silver halide and become water-soluble. Compounds that form silver salts can be mentioned.

Color development of the silver halide color photographic light-sensitive material of the present invention,
The processing temperature of bleach-fixing (or bleaching, fixing), and various processing steps such as washing with water, stabilization, and drying, which are carried out as necessary, is preferably carried out at 30° C. or higher from the viewpoint of rapid processing.

The silver halide color photographic light-sensitive material of the present invention is disclosed in Japanese Unexamined Patent Publication No. 58
-14834, 58-105145, 58-1
No. 34634 and No. 58-18631 and patent application 1973
A stabilizing treatment as an alternative to washing may be performed as shown in Japanese Patent No. 8-2709 and Japanese Patent No. 59-89288.

[Effects of the Invention] According to the silver halide color photographic light-sensitive material of the present invention, the average grain size of silver halide in the blue-sensitive silver halide emulsion layer is 0.20 to 0.55 mm, The silver bromide content of silver halide in the photosensitive silver halide emulsion layer and the red-sensitive silver halide emulsion layer is 5 to 55 mol%, and at least one of the photographic constituent layers contains a DIR compound. Because it is characterized by
An image with inferior image quality can be obtained.

[Examples] Specific examples of the present invention will be described below, but the embodiments of the present invention are not limited thereto.

Example 1 Silver halide color photographic light-sensitive material samples Nos. 1 to 8 were prepared by sequentially coating the following layers from the support side onto a paper support laminated on both sides with polyethylene.

Layer 1 m a m 1.2 g/m'' gelatin, 0
．． Blue-sensitive silver chlorobromide emulsion (silver bromide content and average grain size of silver chlorobromide are shown in Table 1) of 32 g/rn' (in terms of silver, the same applies hereinafter), 0.50 g/m'' of dioctyl 7 tallate. The following yellow coupler (Y
-1) A layer containing.

Layer 2--@0.7g/m' gelatin, 10a+H eradication, 7 anti-dye (AI-1), 5mg+7
) (A l-2).

Layer 3... 1.25g/m" gelatin, 0.22
8/rn' green-sensitive silver chlorobromide emulsion (silver bromide content and silver chlorobromide average grain size are shown in Table 1), 0.30 g/
0,828 dissolved in dioctyl ph tallate of rn'
/rrr' below magenta coupler (M-1,) and 0
．． 03 g/rn'' of DIR compound (D-84).

Layer 4. Φ. Intermediate layer consisting of gelatin of 1.2 g/rn'.

Layer 5--@1.2g/rn'cy) Gelatin, 0.2
0 g/m' red-sensitive silver chlorobromide emulsion (silver bromide content and silver chlorobromide average grain size are shown in Table 1), 0.20 g/m'
Q dissolved in dioctyl phthalate of rn', 45 g/
A layer containing the following cyan coupler (C-1) of n'l'.

Layer 6...l, Og/ba gelatin and 0.20g
0.30 g dissolved in /rrf of dioctyl phthalate
/rn' A layer containing the following ultraviolet absorber (UV-1).

Layer 7: A layer containing 0.5 g/m' of gelatin.

0 sentences fL fL I-I I-2 UV-1 In addition, as a hardening agent, 2,4-dichloro-6-hydroxy-S-) riazine sodium is used as a layer? , 4 and 7,
Each was added in an amount of 0.017 g per Ig of gelatin.

Table 1 Moon R: Blue-sensitive silver halide emulsion, same hereinafter.

$20. Green-sensitive silver halide emulsion, the same hereinafter.

Zero 3P: Red-sensitive silver halide emulsion, the same applies hereinafter.

Next, regarding the above samples Nos. 1 to 4, the only difference was that no DIR compound was added to the green-sensitive silver halide emulsion layer, and samples Nos. 5 to 4 corresponding to samples Nos.
8 was created.

Each of the above-mentioned photosensitive material samples No. 1 to 8 was exposed through a conventional optical wedge and through a chart for measuring image sharpness, and then processed in the following steps.

Treatment process (38℃) Color development 3 minutes Bleach fixing 1 minute Wash with water 1 minute Drying 60-80'0 2 minutes The composition of each treatment liquid is as follows.

[Color developer] Pure water 800mfL Benzyl alcohol 15M sulfuric acid hydroxyamine 2.0g Potassium bromide
1.5g sodium chloride
1.0g potassium sulfite
2.0g triethanolamine 2
．． 0g N-ethyl-N-β-methanesulfonamidoethyl-3-methyl-4-7 minoaniline sulfate 4.5g! -Hydroxyethylidene-1,1-diphosphonic acid (60% aqueous solution)
1.5a + potassium carbonate
32g Whitex BB (50% aqueous solution)
2+mM (fluorescent brightener, manufactured by Sumitomo Chemical Co., Ltd.) Add pure water to make one sentence 20% potassium hydroxide or 10%
Adjust the pH to 10.1 with dilute sulfuric acid.

[Bleach-fix solution/pure water 550 ml iron ethylenediaminetetraacetate (m) Ammonium 85 g ammonium thiosulfate + 15 g sodium bisulfite 10 g sodium metabisulfite
2g Ethylenediaminetetraacetic acid-disodium 20g Sodium bromide 10g Add pure water to make one sentence, and adjust the pH with aqueous ammonia or dilute sulfuric acid.
Adjust to 7.0.

Sensitometry was performed on each sample obtained by a conventional method. Also, MTF (Modulation Tra
nsferFunction) was determined using a microdensitometer, and the MTF values at a spatial frequency of 5 lines/■ were compared. The results are shown in Table 2 along with the gamma values.

Table 2 Gamma: Sensitometric slope from concentration 0.8 to 1.8.

As is clear from the gamma value results in Table 2, in particular,
Sample No. 1 and 5.2 and 6 and 3 and 7.4 and 8
From a comparison of the green-sensitive silver halide emulsion layer with D
It can be seen that it is not easily affected by IR compounds.

In addition, from the MTF results, samples No. 1, 2 of the present invention
It can be seen that the image sharpness is extremely high. and,
Comparing samples No. 1, 5.2, 6.3, 7, and 4 and 8, the effect of the DIR compound on sharpness is different from sample No.
Silver halide of 0.55 to 0.20 g rrr is found in all of 1 to 4, but especially in the blue-sensitive silver halide emulsion layer.
, a green-sensitive silver halide emulsion layer, and a red-sensitive silver halide emulsion layer containing 5 to 55 mol% of silver halide are subjected to DIR.
It can be seen that in the case of the present invention in which the compound is added, the sharpness improvement effect of the DIR compound is very large and the image quality is improved.

This is thought to be due to a synergistic effect between the emulsion and the DIR compound, but the cause is not clear.

Example 2 Samples No. 001.3 and 5 were used to test the development processability. That is, the sensitivity (S) and gamma when the color development time was set to 2 minutes, 2 minutes 30 seconds, and 3 minutes using each processing solution of Example 1 except that the potassium bromide concentration was 1.0 g/Q. −
(γ) and maximum concentration (D m). The results are shown in Table 3.

As is clear from the results in Table 3, especially samples N011 and 5
A comparison shows that the developability hardly changes with the presence or absence of the DIR compound, and sufficient photographic performance can be obtained even with a color development time of 2 minutes.The silver halide color photographic light-sensitive material of the present invention has a soft gamma tone due to the DIR compound It can be seen that there is little decrease in oxidation and DM, and that there is sufficient rapid processing performance.

Example 3 In samples No. 1 in Example 1, DIR compound (D-84) was added to (D-6), (D-24) and (D
When the same experiment as in Example 1 was conducted on the samples except that -72) was replaced, the same good results as in Example 1 were obtained in all cases.

Patent applicant Roku Konishi Photo Industry Co., Ltd. Agent
Patent attorney Nobuaki Sakaguchi (and 1 other person)

Claims (1)

[Claims] A silver halide color photographic light-sensitive material having a photographic constituent layer comprising at least a blue-sensitive silver halide emulsion layer, a green-sensitive silver halide emulsion layer and a red-sensitive silver halide emulsion layer on a reflective support. The average grain size of silver halide in the photosensitive silver halide emulsion layer is 0.20 to 0.55 m
and the silver bromide content of silver halide in the green-sensitive silver halide emulsion layer and the red-sensitive silver halide emulsion layer is 5 to 5.
5 mol%, and at least one of the photographic constituent layers contains at least one compound that releases a development-inhibiting substance or a precursor thereof by reacting with an oxidized product of a color developing agent. A silver halide color photographic material characterized by: