JPS6180253A - Silver halide color photographic sensitive material - Google Patents

Abstract

PURPOSE:To speed up a development by specifying the sizes of blue-sensitive silver halide grains, specifying the silver bromide content of green-and red- sensitive silver halide layers, and incorporating a specified magenta coupler in the green-sensitive silver halide layer. CONSTITUTION:The blue-sensitive silver halide layer contg. silver halide grains having the average grain diameter of 0.20-0.55mum, and the green- and red- sensitive silver halide layers each contg. silver bromide in the amt. of 5-65mol% of the total silver halide are formed ona support. The green-sensitive layer contains an active-site substd. type magenta coupler represented by the formula inhich R1 is arylamino or acylamino; X is OR2 or SR2 or the like; R2 is alkyl or aryl or the like; and X1, X2, and X3 are each H, alkyl, halogen, or the like. The specification of the sizes of the blue-sensitive silver halide grains and the silver bromide content of the green- and red-sensitive layers and the addition of the magenta coupler permit development processing to be sped up and stabilized.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field 1] The present invention relates to a silver halide color photographic light-sensitive material, and more specifically, it is capable of rapid development, has improved processing stability in the rapid development, and is economical. The present invention relates to a silver halide color photographic light-sensitive material that is silver-resistant and capable of suppressing the occurrence of fog.

In general, silver halide color photographic light-sensitive materials are coated with three types of photographic silver halide emulsion layers that are selectively spectrally sensitized to have sensitivity to blue light, green light, and red light. has been done. 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. Between the blue-sensitive silver halide emulsion layer and the green-sensitive silver halide emulsion layer, a bleachable multi-color filter layer is provided to absorb the blue light that passes through the blue-sensitive silver halide emulsion layer. 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 book for color photographic paper, generally from the exposed side, a red-sensitive silver halide emulsion layer, a green-sensitive silver halide emulsion layer, and a blue-sensitive silver halide emulsion layer are added. The emulsion layers are coated in this order, and intermediate layers such as an ultraviolet absorbing layer, protective layers, etc. are provided for special purposes, as in silver halide photographic materials for color negatives. 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, for example, aromatic monomers are used as color developing agents.
The exposed silver halide grains are developed using a grade amine color developing agent, and a dye image is formed by the reaction between the oxidation product of the color developing agent and the dye-forming coupler. In this method, phenolic or naphtholic cyan couplers, 5-pyrazolones, pyrazolinobenzimidazoles, pyrazolotriazoles, indacylones or cyanocoupler couplers, 5-pyrazolones, pyrazolinobenzimidazoles, pyrazolotriazoles, indacylones or cyanocouplers 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 the light-sensitive silver halide emulsion layer or in the developer.

The present invention relates to a silver halide color photographic light-sensitive material in which these couplers are preliminarily contained in a silver halide emulsion layer and rendered non-diffusible.

[Prior Art] In recent years, there has been a desire in the industry for a silver halide color photographic material that can be processed quickly, has high image quality, has excellent processing stability, and is 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 our efforts to improve service to users, processing is carried out on the same day of processing reception H. There is now a demand for processing and returning the material to the user, and in the case of delayed sowing, it has even become necessary to return the material within a few hours from the time of receipt.This has led to the rapid development of 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, the temperature and pH of the developer, as well as the halogen concentration, especially the bromide 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 silver halide color photographic light-sensitive material whose photographic performance has little dependence on bromine concentration and is highly process-stabilized. Processing stability is a problem even during normal processing waiting periods, 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.

Therefore, if we look at the conventional techniques for silver halide color photographic materials that can be processed rapidly, for example,
Silver halide micrograining technology as described in No. 1-77223, ■ JP-A-58-184142, JP-A-56-1
1-Aryl-3-pyrazolidones having a specific structure as described in JP-A No. 56-64339 in silver halide color photographic light-sensitive materials; Addition technology, and JP-A-57
-144547, 58-50534, 58-5
0535 and No. 58-50536, in which l-arylpyrazolidones are added to silver halide color photographic light-sensitive materials; A technique of using a color development accelerator when developing a photosensitive material using an aromatic primary amine color developing agent is also known.For example, such a color development accelerator includes: US Patent 2,
950.970, 2,515,147, 2,4
No. 98,903, No. 4.038.075, No. 4.11
No. 9,462, British Patent No. 1,430.898, No. 1,
No. 455,413, JP-A-53-15831, No. 55
-62450, 55-62451, 55-62
No. 452, No. 55-62453, No. 55-62453
There are compounds described in Japanese Patent Publication No. 51-12422, Japanese Patent Publication No. 55-49728, etc.

However, when using ■ or ■ of these conventional techniques,
Although the processing time was shortened, the processing stability in the rapid development processing was poor, and there were also problems with fogging in the same-day performance.

When the low silver bromide emulsion (2) is used, the amount of bromine ions eluted into the processing solution from the silver halide color photographic light-sensitive material No. 4 containing the low silver bromide emulsion is small, and the bromine ion concentration in the processing solution is small. However, processing a silver halide color photographic light-sensitive material containing a low silver bromide emulsion using a processing solution with a low bromide ion concentration has the disadvantage of poor processing stability. have Processing stability here refers to processing liquid composition, pH1 temperature,
This is the degree of variation in sensitometry due to variations in the bromide ion concentration, etc., and the contamination of other compounds other than the treatment liquid composition.

Furthermore, when the fine grain silver halide of (1) was used, there was a drawback that the processing stability was poor, and the sensitivity was impaired as the grains became finer.

On the other hand, if we look at conventional techniques for improving processing stability, for example, as disclosed in JP-A-59-121036 and JP-A-59-120250, there are techniques that involve improving the processing solution. To the best of our knowledge, there is no example in which the processing stability has been substantially improved by improving a silver halide color photographic light-sensitive material No. 1, and it is desired to develop a technique for improving the processing stability by improving the light-sensitive material.

On the other hand, silver saving is one technical means for providing low-cost silver halide color photographic materials. Various techniques for saving silver are known, and active point substitution magenta couplers are one of the main techniques for saving silver. However, it has been pointed out that the problems with active site substitution type magenta couplers include the high occurrence of capri in same-day performance, and the drawback that development is inhibited when the active site substituent contains a mercapto group.
It was

Various improvements have been attempted to solve these problems. For example, a technique for solving development inhibition by adding fine-grain silver halide as described in JP-A-58-7632, and a technique for solving fogging by adding a hydroquinone compound as described in JP-A-51-9828, for example. There are techniques to suppress this.

However, the former method of solving the problem of development inhibition by using fine grain silver halide is not preferable because it increases the amount of silver in the fine grain silver halide. Furthermore, the latter method of suppressing fog using hydroquinone or the like is undesirable because it causes a substantial decrease in sensitivity. Therefore, it is desired to develop a silver halide color photographic material that causes less fog and is less susceptible to development inhibition.

[Problems to be Solved by the Invention] The present invention has been made in view of the above, and is capable of rapid development processing, improved processing stability in the rapid development processing, and silver saving. It is an object of the present invention to provide a silver halide color photographic material that can suppress the occurrence of fog.

[Step 7 for Solving the Problems 1-1- The silver halide color photographic light-sensitive material of the present invention for solving the technical problems described above has a blue-sensitive silver halide emulsion layer and a green-sensitive silver halide emulsion layer on a support. In a silver halide color photographic light-sensitive material having 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 0.20 to Q, 55 gm. 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 65 mol%.
and is characterized in that the green-sensitive silver halide emulsion layer contains at least one compound represented by the following general formula [I] (hereinafter referred to as the active site substitution type magenta coupler of the present invention).

General formula [1] In the formula, R1 is an arylamino group (e.g. phenylamino group, α or β-naphthylamino group, 4-methylphenylamino group, 2,4.8-trichlorophenylamino group, 4-[α- (3-tert-butyl-4-hydroxyphenoxy)tetradecanamide]-2,8-dichlorophenylamino group, etc.) or acylamino group (e.g., acetylamine group, benzamide group, 3-(2,4-dichlorophenylamino group, etc.)
ert-amylphenoxy)butyramide group, 3-(3
-pentadecylphenoxy)butyramide group, etc.); 2-(2,4
, 8-trichlorophenyl)ethyl group, 3-(3-pentadecylphenoxy)propyl group, 3-(2,4-di-tert-7milphenoxy)propyl group, 2-[α-
(3-tert-butyl-4-hydroxyphenoxy)
1 group of tetradecanamidoethyl) or an aryl group (e.g. phenyl group, α- or β-naphthyl group, 4-methylphenyl group, 2,4.8-(lichlorophenyl group, 4-
[α-(3-tert-butyl-4-hydroxyphenoxy)tetradecanamide]-2,8-dichlorophenyl group, etc.), and R3 and R4 may be the same or different, and are a hydrogen atom and an alkyl group, respectively. (For example, methyl group, propyl group, t-butyl group, hexadecyl group,
-(2,4,6-)lichlorophenyl)ethyl group, 3-
(3-pentadecylphenoxy)propyl group, 3-(2
, 4-di-tert-amylphenoxy)propyl group,
2-[α-(3-tert-butyl-4-hydroxyphenoxy)tetradecanamidoethyl 1 group, etc.), aryl group (e.g. phenyl group, α or β-naphthyl group, 4
-methylphenyl group, 2゜4.8-trichlorophenyl group, 4-[α-(3-trrt-butyl-4-hydroxyphenoxy)tetradecanamide]-2.8-dichlorophenyl group, etc.), heterocyclic group (e.g. pyridyl group, chenyl group, quinolyl group, etc.), acyl group (e.g. acetyl group, etc.), alkylsulfonyl group, arylsulfonyl group, carbamoyl group (e.g. carbamoyl group, dimethylcarbamoyl group, etc.), sulfamoyl group (e.g. sulfamoyl group, methylsulfonyl group, etc.) R
Both 3 and R4 are never hydrogen atoms. R3 and R4 again! bonded to the 5- or 6-membered nitrogen atom
A negative ring may also be formed. This 5-negative or 6-membered ring may be further fused with a benzene ring or a heterocycle.

×1, ×2, and x3 may be the same or different, and each represents a hydrogen atom, an alkyl group (e.g., methyl group, propyl group, t-butyl group, hexadecyl group,
8-trichlorophenyl)ethyl group, 3-(3-pentadecylphenoxy)propyl group, 3-(2,4-di-t)
ert-amylphenoxy) furobyl group, 2-[α-(
3-tert-butyl-4-hydroxyphenoxy)tetradecanamidoethyl 1 group, etc.) or norogen atom (
For example, chlorine, bromine, fluorine, etc.). However, Xl,
At least one of 2 and X3 is not a hydrogen atom.

The active point substitution type magenta coupler used in the present invention is
It is also known that the active point substitution component is bonded via an oxygen atom, a sulfur atom, or a nitrogen atom. It has never been known that when used in combination with a silver emulsion, the processing stability is improved, especially the processing stability in rapid processing is improved by a large 111 times, and this is surprising even to the present inventor. Met. Moreover, it has been pointed out that the problems with the active site substitution type magenta couplers include the high occurrence of fog mentioned above, and the fact that development is inhibited when the active site substituent contains a mercapto group. By using it in combination with the silver halide emulsion of the present invention, it was possible to improve the occurrence of fog and to suppress development. This fact was completely unexpected even by the present inventor, who has been involved in research for many years.

The present 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.
557L, preferably 0.30-0.50L. When the average particle size exceeds 0.55 JL, the processing stability is poor, and the deterioration of the processing stability is particularly marked due to fluctuations in potassium bromide. On the other hand, if the average grain size is less than 0.20 IL, the sensitivity of the blue-sensitive 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 is 0 representative, which can be measured by various methods commonly used in the art for the purpose of L. A typical method is Loveland's "Particle Size Analysis" A, S, T, M, Symposium on Light Microscopy, 1655, 94-1.
22 or Chapter 2 of ``Theory of the Photographic Process'' by Mies and James, 3rd edition, published by Macmillan (11188). The 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 can be described fairly accurately as diameter or projected area.

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 medium-dispersion 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 and are uniform in grain size when the emulsion is observed using an electron micrograph; It has a particle size distribution as defined by the formula: That is, when the standard deviation S of the particle size distribution is divided by the average particle size f, the value is 0.15 or less.

-≦0.15 The grain size here has the same meaning as the grain size mentioned above regarding the average grain size, and in the case of cubic silver halide grains, the length of the -side, or the length of the non-cubic side. In the case of shaped particles, the length of one side when converted to a cube having the same volume, and the individual particle size in this sense is ri,
, and when the number is ni, f is defined by the following formula.

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.

One or both of the halide-sensitive silver halide emulsion layer and the red-sensitive silver halide emulsion layer contained in the green-sensitive silver halide emulsion layer and the red-sensitive silver halide emulsion layer of the present invention are two layers. It may consist of the following 1-. In the present invention, the silver bromide content refers to the total odor of each layer in the total silver halide contained in each of the all-green light-sensitive silver halide emulsion layer and the all-red light-sensitive silver halide emulsion layer. Refers to the content of silver oxide. When the silver bromide content exceeds 65 mol %, processing stability deteriorates, causing magenta color turbidity. On the other hand, when the silver bromide content is less than 5 mol %, processing 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 copper 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 any of silver chloride, silver bromide, silver chlorobromide, and silver chloroiodobromide, or a mixture thereof. Although it may be present, silver chlorobromide is preferred, and the silver bromide content is from 30 to 65 mol%. Furthermore, the blue-sensitive 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 JL, more preferably 0.2 to 2 JL. 1 final peng, particularly preferably 0.25 to 0.8 p
It is m.

Next, the active point substitution type magenta coupler of the present invention will be explained.

The active site substitution type magenta coupler of the present invention is contained in a green-sensitive silver halide emulsion layer, but when the green-sensitive silver halide emulsion layer is composed of 2 or more layers,
It is sufficient if it is contained in at least one layer.

The amount of the active site substitution type magenta coupler of the present invention is not limited, but is preferably 2XIQ-3 to 5X10-' moles per mole of silver in the green-sensitive silver halide emulsion layer.
More preferably IXIQ-2 to 5Xl (1-1 mol).

The active point substitution type magenta coupler used in the present invention is
Examples of active site substitution components bonded via oxygen atoms include, for example, U.S. Pat. No. 3,419.391, U.S. Pat. , No. 51-117032, No. 5
No. 1-112343, No. 52-55529, No. 52-
No. 90932, No. 52-20023, No. 51-110
No. 328, No. 5゜-48922, No. 57-96334
No. 57-96335, No. 57-96336, No. 57-96337, No. 57-96338, No. 57-
No. 96339, No. 57-96340, No. 57-963
Examples thereof include compounds described in No. 41, No. 57-96342, No. 57-96343, and the like.

In addition, as an example of an active site substitution component bonded via a numerical atom, for example, U.S. Patent No. 3,227.554
No., Special Publication No. 53-34044, Japanese Patent Application Publication No. 1977-1692
No. 4, No. 54-80744, No. 55-62454,
No. 56-126833, No. 55-135835, No. 57-4044, No. 57-17950, No. 57-3
No. 5658, No. 58-50537, No. 58-5654
Examples include compounds described in No. 4 and the like.

Furthermore, as an example of an active point substitution component bonded via a nitrogen atom, for example, Japanese Patent Publication No. 50-3754
No. 0, No. 51-10100, JP-A No. 50-13041
No. 50-159336, No. 51-3232, No. 51-3233, No. 51-20826, No. 51-3
No. 0228, No. 51-36938, No. 52-5892
No. 2, No. 53-123129, No. 55-118034
No. 56-38043, No. 56-38044, No. 56-40825, and the like.

Examples of enclosures for the active point substitution type magenta coupler of the present invention are listed below, but the enclosure is not limited thereto.

The following margins [Exemplary compounds] (M-4) (kl~5) t (t, 1-6) (it 0t (M-8) (II t (M-9) (M-10) t (M-11 ) l (M-12) (]t (M-13) L (M-14) t (M-15) t (M-1s) t (Ilif-17) t <+1 (M-18) (it ( M-19) OL (λ(-20) t t (M-21) OL (M-22) t (M-23) t t t (M-26) t t (M-27) .7 (M- 28) t (M-29) t t (M-30) Although the amount of silver (silver + 1 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 density of the silver halide emulsion layer is 0.
It is preferable to set it as 3-Ig/nf. 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 iodobromide. Furthermore, a combination mixture such as a mixture of silver chloride and silver bromide may be used.

That is, when the silver halide emulsion according to the present invention is used in color photographic paper, particularly fast developability is required, so it is preferable that the halogen composition of the silver halide contains chlorine atoms, and at least 1% of the chlorine atoms. Silver chlorobromide or silver chloroiodobromide containing silver chloride is particularly preferred.

Further, the crystals of these silver halide grains may be normal crystals, twin crystals, or other crystals, and have [1,0,0] planes and [1,1
, 1] Any ratio can be used for the plane. Furthermore, even if the crystal structure of these silver halide grains is uniform from the inside to the outside, it has a layered structure (
It may also be of the core-shell type. Further, these silver halides may be of a type that forms a latent image mainly on the surface or of a type that forms a latent image inside the grain. Furthermore, tabular silver halide grains (Japanese Patent Application No. 17007-1987
0) can also be used.

The substantially monodisperse silver halide grains preferably used in the present invention may be obtained by any preparation method such as an acid method, a neutral method, or an ammonia method.

Alternatively, for example, seed particles may be produced using an acidic method, and then grown using an ammonia method, which has a high growth rate, to grow to a predetermined size. When growing silver halide grains, control the pH, p71g, etc. in the reaction vessel,
For example, 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 JP-A No. 54-46521.

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

These silver halide emulsions contain activated gelatin; sulfur sensitizers such as allylthiocarbamide, thiourea, cystine; selenium sensitizers; reduction sensitizers such as stannous 1U, thiourea dioxide, Polyamines, etc.: Noble metal sensitizers, such as gold sensitizers, specifically potassium aurithiocyanate, potassium chloroaurate, 2-aurothiocyanate, etc.
- 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 They act as sensitizers or capri inhibitors depending on the amount. 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 IQ-8 to 3 X I per mole of silver halide in order to impart photosensitivity to the desired wavelength range.
Optical sensitization may be achieved by adding Q-3 moles.

Various sensitizing dyes can be used, and each sensitizing dye can be used alone or in combination of two or more. Examples of sensitizing dyes that can be advantageously used in the present invention include the following.

That is, examples of sensitizing dyes used in the blue-sensitive silver halide emulsion layer include West German Patent No. 928,080 and US Pat. No. 2,231. f158, 2,493,748,
Same 2.503,? ? Ei No. 2,519,001, No. 2,1112.329, No. 3. B511f, 95
No. 9, same 3. E172,897, 3,894.21
No. 7, No. 4,025,349, No. 4.046.572
No., British Patent No. 1.242,588, Special Publication No. 1977-14
Examples include those described in No. 030, No. 52-24844, and the like. In addition, as a sensitizing dye used in a green-sensitive silver halide emulsion, for example, U.S. Patent No. 1.93
No. 9,201, No. 2,072,908, No. 2,739
, 149 (-3, No. 2,945,763, British Patent 5
Cyanine dyes such as those described in No. 05,979, etc.
Typical examples include merocyanine dyes and complex cyanine dyes. In addition, red light sensitivity)
＼Sensitizing dyes used in silver halide emulsions include, for example, U.S. Pat.
Representative examples include cyanine dyes, merocyanine dyes, and complex cyanine dyes as described in No. 2,442,710, No. 2,454,829, No. 2,778,280, etc. I can do it. Furthermore, U.S. Patent Nos. 2,213,995 and 2,493,748
No. 2,519,001, West German Time i4'929,0
Cyanine dyes, merocyanine dyes or composite cyanine dyes such as those described in No. 80 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.

The photographic material of the present invention may be optically sensitized in a desired wavelength range by a spectral sensitization method using cyanine or merocyanine dyes alone or in combination, if necessary.

A typical example of a particularly preferred spectral sensitization method is, for example, Japanese Patent Publication No. 43-49 concerning the combination of penzimitazolocarbocyanine and benzoxazolocarbocyanine.
No. 36, No. 43-22884, No. 45-18433, No. 47-37443, No. 48-28293, No. 4
No. 9-6209, No. 53-12375, Japanese Unexamined Patent Publication No. 1983-
No. 23931, No. 52-51932, No. 54-801
No. 18, No. 58-153926, No. 59-11664
6, No. 59-116647, and the like.

In addition, regarding the combination of carbocyanine having a benzimidazole nucleus with other cyanine or merocyanine, 11, for example, Japanese Patent Publication No. 45-258311), Japanese Patent Publication No. 47-47-
11114 Gin, No. 47-25379, No. 48-384
No. 06, No. 48-38407, No. 54-34535, No. 55-1569 bow, Japanese Patent Publication No. 50-33220, No. 50-36526, No. 51-107127, No. 51
-115820, 51-135528, 52-
No. 104916, No. 52-104917, and the like.

Furthermore, regarding combinations of benzoxazolocarbocyanine (oxa-carbocyanine) and other carbocyanines, for example, Japanese Patent Publication Nos. 44-32753 and 46
-11627, JP-A No. 1483-1983, and Japanese Patent Publication No. 48-384.0 regarding merocyanine.
No. 8, 48-4, 1704), 50-40662
JP-A-56-25728, JP-A-58-10753, JP-A-58-91445, JP-A-59-116645, and JP-A-50-33828.

Regarding combinations of thiacarbocyanin and other carbocyanins, for example, Japanese Patent Publications Nos. 43-4932, 43-4933, 45-26470, and 46
-18107, No. 47-8741, JP-A-59-1
No. 14533, etc., and the method described in Japanese Patent Publication No. 49-6207, which uses zeromethine or dimethine merocyanine, monomethine or trimethine cyanine, and styryl dye, can be advantageously used.

In order to add these sensitizing dyes to the silver halide emulsion according to the present invention, a dye solution such as methyl alcohol, ethyl alcohol, acetone, dimethylformamide, or fluorinated alcohol described in Japanese Patent Publication No. 40659/1984 is used in advance. It is used by dissolving it in a hydrophilic organic solvent.

The addition may be made at any time such as at the start of chemical ripening of the silver halide emulsion, during ripening, or at the end of ripening, and in some cases, it may be added at a step immediately before coating the emulsion.

The silver halide color photographic light-sensitive material of the present invention may contain a water-soluble dye in the hydrophilic colloid layer as a filter dye, or for irradiation prevention and other various purposes. 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, British Patent No. 1,
No. 277.429, JP-A-48-65130, JP-A No. 49
-99620, 49-114420, 49-1
No. 29537, No. 52-108115, No. 59-25
No. 845, U.S. Pat. No. 2,274,782, U.S. Patent No. 2.53
No. 3,472, No. 2,135B, No. 878, No. 3,12
No. 5,448, No. 3,148,187, No. 3,177
．． No. 078, No. 3,247.127, No. 3,540,
No. 887, No. 3,575,704, No. 3.653.9
No. 05, No. 3,718,472, No. 4,071,31
No. 2, No. 4.070.352.

The green-sensitive silver halide emulsion layer of the present invention contains the active point substitution type magenta coupler of the present invention, but the green-sensitive silver halide emulsion layer contains a magenta coupler other than the present invention. Good too.

However, the amount of magenta couplers other than the present invention is preferably less than 45 mol % based on the total amount of magenta couplers. Further, the blue-sensitive silver halide emulsion layer and the red-sensitive silver halide emulsion layer according to the present invention may each contain a coupler, that is, a compound capable of reacting with an oxidized form of a color developing agent to form a dye. can.

In the present invention, ordinary yellow couplers, magenta couplers and cyan couplers can be used as the couplers. These couplers may be so-called 2-equivalent type couplers or 4-equivalent type couplers,
It is also possible to use a diffusible dye-releasing coupler or the like in combination with these couplers.

The yellow coupler may be a closed ketomethylene compound or a so-called two-equivalent type coupler.
〇-aryl substituted coupler, active point -〇-acyl substituted coupler, active point hydantoin compound substituted coupler, active point urazole compound substituted coupler and active point succinimide compound substituted coupler, active point fluorine substituted coupler, active point chlorine or bromine substituted coupler Coupler, active point -〇-
Sulfonyl-substituted couplers and the like may be used without particular limitation.

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

These magenta couplers are similar to the yellow couplers 4
Not only an equivalent type coupler but also a 2-equivalent type coupler may be used. A specific example of a magenta coupler is US Patent 2.
, No. 600,788, No. 2.1383,808 Gin, No. 3
, No. 082,653, No. 3,127.2813, No. 3
, No. 311.476, No. 3,419,391, No. 3,
No. 519,429, No. 3.558,319, No. 3.5
No. 82.322, No. 3,815,508, No. 3.83
4.1108, No. 3,891,445, West German Patent 1
,810.464!3, West German 4￥ revised application (OLS)
No. 2,408,865, No. 2,417,945, No. 2
, 418,135E1, 2,424.467, JP 40-6031, JP 51-20826, JP 52-58922, JP 49-129538, JP 49
-74027, 50-159336, 52-4
No. 2121, No. 49-74028, No. 50-6023
No. 3, No. 51-26541, No. 53-55122,
Examples include those described in Japanese Patent Application No. 55-110943.

Further, useful cyan couplers used in the present invention include, for example, phenol 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. Nos. 2,3B9,929 and 2
, No. 434,272, No. 2.474.2113, No. 2
, No. 521.1308, No. 2,81115.828,
3.034.8132, 3,311.4Vfi, 3,458.315, 3.47Ei, 563, 3,583.1171, 3.591.383, 3 , No. 767.411, No. 4,004,1129, West German Patent Application (OLS) No. 2,414,830,
No. 2,454,328, Japanese Unexamined Patent Publication No. 48-59838,
No. 51-26034, No. 48-5055, No. 51-
No. 146827, No. 52-69624, No. 52-90
Examples include those described in No. 932 and No. 58-95346.

In order to incorporate the active site substitution type magenta coupler of the present invention and other couplers into the silver halide emulsion of the present invention, if the coupler is soluble in alkali, it may be added as an alkali +1 solution, or it may be added as an alkali +1 solution. When soluble, for example, U.S. Pat. No. 2,322,027, U.S. Pat. No. 2,801,170, U.S. Pat.
No. 2,272,191 and No. 2,304,94
It is preferable to dissolve the coupler in a high boiling point solvent, optionally in combination with a low boiling point solvent, according to the method described in each specification of No. 0, and to disperse the coupler in the form of fine particles and add it to the silver halide emulsion. At this time, if necessary, a hydroquinone derivative, an ultraviolet absorber, an anti-fading agent, etc. may be used in combination. It is also possible to use a mixture of two couplers. Further, to explain in detail the preferred method of adding couplers in the present invention, one or more of the couplers are added to an organic acid amide along with other couplers, hydroquinone derivatives, anti-fading agents, ultraviolet absorbers, etc. as necessary. , carbamates, esters, ketones, urea derivatives, ethers, hydrocarbons, etc., especially di-n-butyl phthalate, triresyl 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-
High boiling point solvents such as di-5ec-amylphenylbutyl ether, monophenyl-cyo-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,
Anionic surfactants such as alkylbenzene sulfonic acids and alkylnaphthalene sulfonic acids and/or nonionic surfactants such as sorbitan sesquioleate and nrubitan monolaurate, dissolved in low boiling point solvents such as dioxane and methyl ethyl ketone. and/or mixed with an aqueous solution containing a wood-philic binder such as gelatin, emulsified and dispersed using a high-speed rotary mixer, colloid mill, ultrasonic dispersion device, etc., and added to a silver halide emulsion.

In addition, the coupler may be dispersed using a latex dispersion method. The latex dispersion method and its effects are described in JP-A-49-74538, JP-A-51-5994.3, and JP-A-57L-32552, and Research Disclosure August 1978, No. 14650.77-7.
It is described on page 8.

Suitable latexes include, for example, styrene, acrylate,
n-butyl acrylate, n-butyl methacrylate,
2-acetoacetoxyethyl 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 silver halide color photographic material of the present invention may contain various other photographic additives. For example, antifoggants, stabilizers, ultraviolet absorbers, color stain inhibitors, optical brighteners, color image fading preventive agents, antistatic agents, etc. described in Research Disclosure No. 17643,
Hardeners, surfactants, plasticizers, wetting agents, etc. can be used. In the silver halide color photographic light-sensitive material of the present invention, the wood-philic colloids used to prepare the emulsion include gelatin, derivative gelatin, graft polymers of gelatin and other polymers, albumin, casein, etc. Protein, hydroxyethyl lucose? A conductor, cellulose derivatives such as carboxymethylcellulose, V powder M1
body, polyvinyl alcohol, polyvinylimidazole,
Any single or hybrid synthetic woody polymer such as polyacrylamide is 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. Further, ordinary transparent supports may be used, and these supports are suitable for use of photosensitive materials. It is selected accordingly.

Various coating methods such as dipping coating, air lid coating, curtain coating, and hopper coating can be used to coat the emulsion layer and other constituent layers used in the present invention. Also, U.S. Patent No. 2.7F11.7131,
It is also possible to use a simultaneous coating method of two or more layers according to the method described in No. 2,941.81aB.

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, it is preferable to sequentially arrange a blue-sensitive silver halide emulsion layer, a green-sensitive silver halide emulsion layer, and a red-sensitive silver halide emulsion layer from the support side. .

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.

In these constituent layers, a lignophilic colloid that can be used in the silver halide emulsion layer as described above can be similarly used as a binder, and in the layer, a lignophilic colloid that can be used in the silver halide emulsion layer as described above can be used. Various photographic additives can be included.

There are no particular restrictions on the method of processing photographic materials using the silver halide emulsion according to the present invention, and any processing power V: can be applied. For example, typical methods include a method in which bleach-fixing is performed after color development, followed by further washing and/or stabilization treatment if necessary; bleaching and fixing are performed separately after color development; Wash with water and/or
Or a method of performing stabilizing treatment; or a method of performing pre-hardening, neutralization, color development, stop and fixation, washing with water, bleaching, fixing, washing with water, post-hardening, washing with water, color development, washing with water, supplementary color development , Stop 1-2 bleaching, fixing, washing, stabilizing in that order, development method in which the developed silver produced by color development is subjected to halogenation bleaching, and then color development is performed again to increase the amount of produced dye, etc. It may be processed using the following method.

The color developing solution used in the processing of the silver halide emulsion according to the present invention is an aqueous solution of Alkalya 1 having a PR of 8 to 12, preferably 1-1 containing a color developing agent, preferably 8 to 12. .This color development ``Aromatic first as medicine''
A primary amine developing agent is a compound having a primary amine group on the aromatic ring -L and having the ability to develop exposed silver halide, and if necessary, a precursor for forming such a compound. May be added.

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

4-Amino-N, N-diethylaniline, 3-methyl-
4-amino-N, N-diethylaniline, 4-amino-
N-ethyl-N-β-hydroxyethylaniline, 3-
Methyl-4-amino-β-hydroxyethylaniline, 3-methyl-4-amino-N-ethyl-N-β-methoxyethylaniline, 3-methyl-4-amino-N-ethyl-N-β-methanesulfonamide ethylaniline,
3-methoxy-4-amino-N-ethyl-N-β-hydroxyethylaniline, 3-methoxy-4-amino-N
-ethyl-N-β-methoxyethylaniline, 3-acetamido-4-7 minnow 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 sulfate, hydrochloride, Tdtmku, p-toluenesulfonate, 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 amine compounds used can be determined by setting the activity of the developer, but it is preferable to increase the amount used in order to increase the activity. The product used ranges from 0.0002 mol/liter to 0.7 mol/liter. Moreover, two or more compounds can 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. can be freely used in combination depending on the purpose.

The color developing solution 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, etc.
, an alkali metal bisulfite, an alkali metal thiocyanate, an alkali metal halide, benzyl alcohol, a water softener, a thickening agent, a development accelerator, and the like may optionally be contained.

Examples of additives other than the above added to the color developing solution include bromides such as potassium bromide and ammonium bromide;
Including compounds for rapid processing solutions such as alkali iodide, nitropenzimitazole, mercaptobenzimitazole, 5-methyl-benztriazole, l-phenyl-5-mercaptotetrazole, stain preventive agents,
There are 11-agents for preventing sludge, price-holding agents, layer effect accelerators, 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 aminopolycarboxylic acids include the following.

Ethylenediaminetetraacetic aciddiethylenetriaminepentaacetic acidpropylene diaminetetraacetic acidnitrilotriacetic acidiminodiacetic acid ethyl ether diaminetetraacetic acidethylenediaminetetrapropionateethylenediaminetetraacetic acid disodium 1ndiethylenetriaminepentaacetic acid pentasodium salt nitrilotriacetic acid sodium saltInThe bleaching solution is used together with the bleaching agent described in 1- It may contain various additives. Also, when using a bleach-fix solution in the bleaching process,
A solution containing a silver halide fixing agent in addition to the bleaching agent is applied. 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. addition,
It may be included.

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 30° C. or higher from the viewpoint of rapid processing.

[Effects of the Invention] According to the silver halide color photographic light-sensitive material of the present invention, the support 1- has a blue-sensitive silver halide emulsion layer, a green-sensitive silver halide emulsion layer, and a red-sensitive silver halide emulsion layer. In the silver halide color photographic light-sensitive material 1'l, the average grain size of silver halide in the blue-sensitive silver halide emulsion layer is 0.20 to 0.55 pL11, and the green-sensitive silver halide emulsion layer and The silver bromide content of silver halide in the red-sensitive silver halide emulsion layer is 5 to 65 mol%, and t
& Since the photosensitive silver halide emulsion layer contains the active site substitution type magenta coupler of the present invention, rapid development processing is possible and processing stability in the rapid development processing is improved. It is possible to save silver and suppress the occurrence of capri.

[Example 1] 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 4 were prepared by sequentially applying the following layers to a paper support double-sided laminated with polyethylene from the support side.

Layer 1 a a e 1.2 g/m2 (7) Gelatin,
Blue-sensitive silver chlorobromide emulsion (silver bromide content and average grain size are shown in Table 1) of 0.32 g/nf (in terms of silver, the same applies hereinafter),
Q dissolved in 0.50 g/m' dioctyl phthalate
, 83 g/m' of yellow coupler (Y-1).

P2-...O, vog/m' gelatin intermediate layer.

Layer 3 e*e 1.25 g/m'c7) gelatin, 0.15 g/rn2 green-sensitive silver chlorobromide emulsion (silver bromide content and average grain size are shown in Table 1), 0.30 g/m '
Exemplary compound of active point substitution type magenta coupler (M -2
8) A layer containing.

Layer 4: Intermediate layer consisting of −+, 2 og,/m” gelatin.

Layer 5--# 1.20g/d gelatin, 0.3
0 g/m' red-sensitive silver chlorobromide emulsion (silver bromide content and average t, y P are shown in Table 1), 0.45 g 10f of the following cyan coupler dissolved in 9.20 g/m' dioctyl phthalate. (layer containing c-B.

Layer 6 e * e 1. QQg/m' of gelatin and 0
．． 0 dissolved in 20 g/m' of dioctyl phthalate,
A layer containing 30 g/rn' of the following ultraviolet absorber (UV-1).

, 117...layer containing 0.50 g/m'' gelatin.

Margin below z (UV-1) 0511 Summer 1 (t) In addition, as a hardening agent, gelatin IgM was added to 2,4-dichloro-6-hydroxysodium S-triazine at a concentration of 0.017 g. 17.

-Roku 1 Next, for the above samples Nos. 1 to 4, the magenta coupler of the green-sensitive silver halide emulsion was replaced with the one described above (MM-1) (silver amount 0.62 g per 1 m'), and layer 3 Samples Nos. 5 to 8 corresponding to Samples Nos. 1 to 4 were prepared with the only difference being that the amount of silver in the green-sensitive silver chlorobromide emulsion was changed to 0.22 g/rn'.

Each of Photosensitive Material Samples Nos. 1 to 8 was exposed through an optical wedge and then processed in the following steps.

Treatment process (38°C) Color development 3 minutes Bleach fixing 1 minute 30 seconds Wash with water 1 minute Drying 60-80’0 2 minutes The composition of the bacterial treatment solution is as follows.

[Color developer] Pure water 800mJ1 benzyl alcohol 15mJ hydroxyamine sulfate 2.0g Potassium bromide
1.5g sodium chloride
], Og6da Potassium sulfite 2.0g Triethanolamine 2.0gN = Ethyl-N
-β-methanesulfonamidoethyl-3-methyl-4-amine aniline sulfate 4.5g fonic acid (60% aqueous solution) 1.5m potassium carbonate
32g White++ BB (50% aqueous solution) 2mJlj (fluorescent brightener, manufactured by Sumitomo Chemical Co., Ltd.) Add pure water to make IJI 20% potassium hydroxide or 10%
Adjust the pH to 10.1 with % dilute sulfuric acid.

[Bleach-fix solution] Pure water 550II 1 liter Iron ethylenediaminetetraacetate (m) Ammonium 65g Ammonium thiosulfate 65g Sodium bisulfite log Sodium metabisulfite
2g ethylenediaminetetraacetic acid-disodium 2
0g sodium bromide] Add pure water to make it 1M, and adjust the pH to 1M with aqueous ammonia or dilute sulfuric acid.
Adjust to 7.0.

Separately, potassium bromide in the color developer was added to 0.5.1.
Each of Sample Nos. 1 to 8, which was the same as above, was developed using color developing solutions with the only difference being that they were 0.0, 2.0, and 2.5.

Sensitometry was performed on each sample by a conventional method. Kanmai 1 at each potassium bromide concentration
No. 11 is shown in Table 2.

As is clear from the comparison of blank samples Nos. 3 and 7 and samples Nos. 4 and 8 below, the blue-sensitive silver halide emulsion layer, the green-sensitive silver halide emulsion layer, and the red-sensitive silver halide emulsion layer When silver halide emulsions other than those of the present invention are used in combination with the active site substitution type magenta couplers of the present invention, the effect of improving processing stability is small. As is clear from the comparison of 6 and 6, if the silver halide emulsion of the present invention and the active site substitution type magenta coupler of the present invention are used in combination, a light-sensitive silver halide emulsion layer, especially a green-sensitive silver halide emulsion, can be formed. It can be seen that the processing stability of the layer is significantly improved.

Further, Sample Nos. 1 and 4 have exactly the same silver halide emulsion in the green-sensitive silver halide emulsion layer, and only the silver halide emulsion in the blue-sensitive silver halide emulsion layer is different. However, the processing stability of the green-sensitive silver halide emulsion layer was improved only when the active site substitution type magenta coupler of the present invention and the silver halide emulsion of the present invention were used (Sample No. 1). I understand. in this way,
The fact that the developability of the silver halide emulsion in the green-sensitive silver halide emulsion layer differs depending on the silver halide emulsion in the blue-sensitive silver halide emulsion layer is that the developability of the blue-sensitive silver halide emulsion layer is different. This is thought to mean that the developability of the green-sensitive silver halide emulsion layer is affected. This is a completely unknown and surprising fact.

Example 2 Samples Nos. 1 to 8 were treated with each treatment solution of Example 1 (however, the potassium bromide concentration of the color developer was 1.0 g/l).
It was set to ) The fog (Fog) of the green-sensitive silver halide emulsion layer was investigated when the color development time was set to 2 minutes. The results are shown in Table 3.

Margin Table 3 Below As is clear from the results of Table 3, sample No. of the present invention,]
is an active point substitution type magenta coupler 111 as a coupler.
It can be seen that the occurrence of fogging is suppressed despite the presence of light.

Example 3 Sample No. 091 was used to test for rapid processability.

111, each treatment solution of Example 1 was used (however, the potassium bromide concentration of the color developer was set to 1.0 g/l).
The sensitivity (S), gamma (γ), and maximum density (Dm) were investigated when the color development time was set to 2 minutes, 2 minutes and 30 seconds, and 3 minutes. The results are shown in Table 4.

Table 4: Relative sensitivity when the sensitivity when developed for 3 minutes is set as 100.

rz As is clear from the results in Table 4, the trial number of the present invention
, I can obtain sufficient photographic performance even with a color development time of 2 minutes, and is found to be excellent in rapid processing properties.

Example 4 The Dm of the green-sensitive silver halide emulsion layer was the same as that of sample No. 1, except that Sample No. '5 was used instead of Sample No. 1 of Example 1. It was the result. As is clear from this, it has been found that according to the present invention, a high I)m'% can be obtained despite a small number of stars using silver.

Example 5 A sample was prepared in which the only difference was that the magenta coupler (M-28) was replaced with (M-4) and (M-5) in Sample No. 1 in Example 1, and the sample was the same as Example 1. When 17 experiments were conducted in the same manner, good results equivalent to those of Sample No. 1 in Example 1 were obtained in all cases.

Patent applicant Roku Konishi Photography - “Gyo Co., Ltd. Agent”
People fr (-Nobu Sakaguchi Showa τ1 Summer 4-
1 person)

Claims (1)

[Scope of Claims] A silver halide color photographic light-sensitive material having a blue-sensitive silver halide emulsion layer, a green-sensitive silver halide emulsion layer and a red-sensitive silver halide emulsion layer on a support. The average grain size of silver halide in the silver halide emulsion layer is 0.
20 to 0.55 μm, 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 65 mol%, and the green-sensitive silver halide emulsion layer A silver halide color photographic light-sensitive material characterized in that a silver emulsion layer contains at least one compound represented by the following general formula [I]. General formula [I] ▲There are mathematical formulas, chemical formulas, tables, etc.▼ In the formula, R_1 represents an arylamino group or acylamino group, and X is -O-R_2, -S-R_2 or ▲Numerical formula,
There are chemical formulas, tables, etc. ▼ represents, R_2 represents an alkyl group or an aryl group, R_3 and R_4 may be the same or different,
Each represents a hydrogen atom, an alkyl group, an aryl group, a heterocyclic group, an acyl group, a sulfonyl group, a carbamoyl group, a sulfamoyl group, an alkoxycarbonyl group, or an aryloxycarbonyl group, and R_3 and R_4 are not both hydrogen atoms. Further, R_3 and R_4 may be bonded to each other to form a 5- or 6-membered ring with the nitrogen atom. This 5- or 6-membered ring may be further fused with a benzene ring or a heterocycle. X_1, X_2 and X_3
may be the same or different and each represents a hydrogen atom, an alkyl group or a halogen atom. However, X_1, X_2
and at least one of X_3 is not a hydrogen atom.