JPS61120150A - Silver halide color photographic sensitive material - Google Patents

Abstract

PURPOSE:To increase the resistance of a sensitive material to light and formalin and to improve the color developing property by incorporating a specified 1H- pyrazolo[3,2-c]-s-triazole type magenta coupler into a silver halide emulsion layer. CONSTITUTION:A compound represented by formula I (where R1 is tertiary alkyl, R2 is secondary or tertiary alkyl, and X is halogen) is incorporated into a silver halide emulsion layer as a 1H-pyrazolo[3,2-c]-s-triazole type magenta coupler. A compound represented by formula II may be used as the compound represented by the formula I. Since the silver halide emulsion layer contains the compound represented by the formula I, the resistance of the resulting color photographic sensitive silver halide material to light and formalin is increased, and the color developing property can be improved.

Description

[Detailed description of the invention]

(Industrial Application Valve IF) The present invention relates to a silver halide color photographic light-sensitive material containing a magenta coupler that forms magenta dye images with high color development and improved storage stability, especially light fastness. More specifically, the present invention relates to a silver halide color photographic light-sensitive material containing a novel IH-pyrazolo[3,2-C)-rhotriazole magenta coupler. (Prior Art) Usually, in a silver halide color photographic light-sensitive material, exposed silver halide grains are reduced by an aromatic first-amine color developing agent, and the above-mentioned color development is produced at this time. A dye image can be obtained by coupling the oxidized form of the main drug with couplers that form yellow, magenta, and cyan dyes. The coupler that has been put to practical use in the past to form the magenta dye is a pyrazolone coupler, which has unfavorable side absorption and has poor storage stability, especially resistance to formalin gas (formalin resistance). It has the disadvantage of being poor. In order to improve the above drawbacks, various IH-pyrazolo(3,2-C]-5-) lyazole magenta couplers have been proposed. For example, U.S. Patent 3.725.06
7, British Patent No. 1,252.418, British Patent No. 1,334.
It is described in No. 515. The compounds described in both patents are of course superior to pyrazolone magenta couplers in terms of side absorption, but improvements in formalin resistance are insufficient, and little improvement has been made in terms of color development and one-time light resistance. Not a R@s@arch Dlselo-s
The compound described in ur.12443 cannot be put to practical use at all in terms of color development. I! The IM-pyrazolo(3,2-C)-s-) lyazole magenta coupler described in #Kokai No. 58-42045 has been significantly improved in terms of formalin resistance and color development, but Almost no improvements have been made. Also, JP-A-59-99437, JP-A No. 59-125732
Although the coupler described in the issue has also been improved in color development,
There is still no improvement in the light fastness of dyes based on the described couplers. In the latter case, the light resistance is merely improved by the additive used in combination. However, the former compound described in the specification Example 1
Coupler No. 9 has slightly improved light resistance, but it cannot be said to be sufficient. In other words, IH-pyrazolo (3,2.
-C]-s-Triazole magenta coupler is also dye 1
It can be said that almost no improvements have been made to my light resistance. (Object of the Invention) An object of the present invention is to provide a silver halide color photographic light-sensitive material which has good light fastness and formalin resistance, and has high color development. (Structure of the Invention) The object of the present invention is to provide a silver halide color photographic light-sensitive material having at least one silver halide emulsion layer on a support, in which the silver halide emulsion layer is represented by the following general formula. This is achieved by a silver halide color photographic light-sensitive material containing at least one magenta coupler. In the general formula, turtle represents tertiary alkyl, R, 112-class or tertiary alkyl, and X represents halogen. The present inventors have carried out intensive research aimed at improving the above points, and as a result, we have developed IH-pyrazolo C3, which has good formalin resistance, excellent single-layer light resistance, and high color development.
We have now discovered a magenta coupler based on 2-C]-s-triazole. . Specifically, it is represented by the following general formula. In the formula, R1 represents tertiary alkyl, avian represents secondary or tertiary alkyl, and X represents halogen. The tertiary carbon of the tertiary alkyl shown by the turtle may be substituted with aryl, such as phenyl, or even alkoxy, in addition to alkyl. Furthermore, cases where a cyclo ring is formed by including a tertiary carbon are of course also included in tertiary alkyl. In short, it represents anything that has something other than hydrogen bonded to a tertiary carbon. Further, the alkyl bonded to the tertiary atom may be substituted with a substituent such as halogen or alkoxy. Specific examples of tertiary alkyl include t-butyl, 1.1-
Dumethyl-2-methoxy-ethyl, 1,1-dimethyl-2-chloro-ethyl, l-methyl-1-methoxy-ethyl, 1-methyl-1-phenyl-ethyl, 1,1-di-n- amyl-hexyl, 7゜7-dimethylnorbornantoyl, 1,1-dimef-looptyl, 1-ethyl-
Representative examples include 1-methyl-propyl and adamanothyl. The secondary alkyl represented by bird is 1) I-pyrazolo (3,2
-C1-5-triazole ring represents an alkyl having one hydrogen bonded to the root carbon directly connected to the ring, and tertiary alkyl represents an alkyl having no hydrogen bonded to the root carbon. Secondary and tertiary alkyl represented by birds include aryl, heterocycle, halogen, cyano, and substituents bonded to carbonyl such as alkoxycarbonyl, acyl, carbamoyl, etc., as well as nitro, alkoxy, alkylthio, arylthi, alkyl. Sulfonyl, arylsulfonyl,
It may be substituted with a substituent bonded to a heteroatom such as alkylsulfinyl, arylsulfinyl, dialkylamino, etc. Among these substituents, particularly preferred are alkylthio, arylthio, alkylsulfonyl,
It is selected from arylsulfonyl, alkylsulfinyl, and arylsulfinyl. When the heterocyclic group is an IH-pyrazolo(3,2-C]-3-triazol-3-yl compound, a bis-type IH-pyrazoIf(3,2-C]-5-)riazole compound is formed. However, it is of course a magenta coupler that is included in the present invention. Examples of the halogen represented by X include chlorine, iron, and fluorine. It is not limited. CM. C base H3 CH. CH1 C4 薯CH. Next, the synthesis method will be described.
sclo-sur 12443, U.S. Pat. No. 3,725.
The synthesis was carried out with reference to No. 067, JP-A No. 59-99437, etc. The synthesis reaction scheme of Compound Example (1) is as follows. (I) Synthesis of (i'II) and H3 (I) 1-Methyl-2-octadecylsulfonyl-propionic acid 7011 and thiocarbohydrazide 10# are partially boiled under reflux in methylol solution. The precipitated crystals are collected by filtration and recrystallized from a mixed solvent of alcohol/water to obtain the desired product. Synthesis of (n) 8.8 g of (I) and 3.6 g of t-butyl-bromomethylnaton are boiled and stirred in 200 d of alcohol for 6 hours. The reaction is cooled and the precipitated crystals are collected by filtration. The nine crystals collected by filtration were dissolved in methanol and adjusted to pH 8 with 10% soda carbonate. The precipitated crystals are collected by filtration and thoroughly washed with water. Recrystallize the crystals with alcohol containing a small amount of water,
Obtain the desired ■. Synthesis of (m) - (II) of 6JF Dispersed in 500 m7 of n-dodecane, boiled and stirred for 3 hours through nitrogen gas. After cooling, the precipitated solid was collected by filtration and recrystallized from acetonitrile. Synthesis of (IV) 3!9(D (III) Dissolve in chloroform,
Add an equivalent amount of N-chlorosuccinimide and react for 1 minute while maintaining the temperature at 20'C. Thereafter, the reaction solution is washed with dilute alkali to remove the generated succinimide. Chloroform is distilled off and the residue is subjected to column chromatography using benzene/acetone and silica gel as carriers to obtain the desired product. (IV) That is, Example (1) was confirmed using nuclear magnetic resonance spectroscopy. (4) (6) (12) (17) (20) (D
It was synthesized according to the method of Example 14 of Illll. The halogenated 1j color photographic light-sensitive material prepared using the present invention may contain a conventionally used dye-forming coupler. As the yellow coloring coupler, a known open-chain natomethylene coupler can be used. These compounds of the benzoylacetanilide type and the hivaloylacetanilide type are advantageous. Specific examples of yellow couplers that can be used are U.S. Pat.
No. 06, No. 3,408.194, No. 3,551゜15
No. 5, No. 3,582.322, No. 3,725.072
No. 3,891°445, West German Patent No. 1,547.8
No. 68, West German Application Publication No. 2,219゜917, No. 2,2
No. 61.361, No. 2,414.006, British Patent 1
．． No. 425.020,! ! #kai No. 51-10783,
JP 47-26133, JP 48-73147, JP 51-102036, JP 50-6341, JP 50-
No. 123342, No. 50-130442, No. 51-2
No. 1827, No. 5Q-87650, No. 52-824
No. 24, No. 52-115219, etc. As the cyan coloring coupler, phenol compounds, naphthol compounds, etc. can be used. A specific example is U.S. Pat. No. 2.369.929, U.S. Pat.
No. 72, No. 2.474.293, No. 2,521.90
No. 8, No. 2.895°826, No. 3,034,892
No. 3,311.476, No. 3,458゜315, No. 3,476.563, No. 3,583,971,
No. 3,591°383, No. 3,767.411, No. 4,004.929, West German patent application (OL8) 2
．． 414.830, 2.454,329, JP 48-59838, 51-26034, 48-
No. 5055, No. 51-146828, No. 52-696
No. 24 and No. 52- may be used alone or in combination of two or more, and in addition, conventionally known pyrazolone compounds, indacylon compounds, cyanoacetyl compounds, pyrazolinobenzimidazole compounds, and pyrazolotriazole compounds. etc. may be used in combination as appropriate. However, at least one is a coupler of the invention. Furthermore, a colored coupler having a color correction effect and a development inhibitor-releasing coupler (so-called DIR coupler) for improving image quality can be used together with the coupler of the present invention, if necessary. In order to introduce the magenta coupler of the present invention and each coupler related thereto into the silver halide emulsion layer, known methods such as the method described in US Pat. No. 2,322.027 can be used. For example, phthalic acid alkyl esters (dibutyl phthalate, dioctyl phthalate, etc.), phosphoric acid esters (
diphenyl phosphate, triphenyl phosphate, tricresyl phosphate, dioctyl butyl phosphate), citric acid esters (e.g. acetyl tributyl citrate), benzoic acid esters (e.g. octyl benzoate), alkylamides (e.g. diethyl lacryl). amides), fatty acid esters (e.g. dibutoxyethyl succinate, dioctyl azelate), °
Trimesine esters (for example, tributyl trimesate), etc., or organic solvents with a boiling point of 30"C to 150C, such as lower alkyl acetates such as ethyl acetate and butyl acetate, ethyl probionate, secondary butyl alcohol, methyl isobutyl ketone, After dissolving in β-ethoxyethyl acetate, methylselon lupacetate, etc., it is dispersed in a hydrophilic colloid.The above-mentioned high boiling point organic solvent and low boiling point organic solvent may be mixed and used. No. 51-39853, Japanese Patent Publication No. 51-5994
The dispersion method using polymers described in No. 3 can also be used. When the magenta coupler of the present invention is added to a silver halide emulsion layer, it is usually 0.005% per mole of silver halide.
S is added in an amount of 2 mol, preferably in the range of 0.03 to 0.5 mol. The dye image formed from the magenta coupler of the present invention itself exhibits strong light resistance, but the light resistance can be further improved by using an anti-fading agent or by providing an upper layer containing an ultraviolet absorber. As an anti-fading agent, for example, U.S. Patent No. 2.360゜2
No. 90, No. 2.418.613, No. 2.675, 31
No. 4, No. 2.701゜197, No. 2,704.713
No. 2,728.659, No. 2,732゜300, No. 2,735.765, No. 2.710.801,
No. 2,816°028, British Patent No. 1,363.921
Hydroquinone derivatives described in US Pat. No. 3, etc.
Gallic acid derivatives described in No. 457,079, No. 3,069゜262, etc., US Pat.
No. 3,698,909, Special Publication No. 49-20977,
p-alkoxyphenols described in US Pat. No. 52-6623, US Pat. No. 3,432.300, US Pat. No. 3,573
．． No. 050, No. 3.574.627, No. 3,764.
337, JP-A No. 52-35633, JP-A No. 52-147
434 and 52-152225, and bisphenols described in U.S. Pat. No. 3,700.455. Examples of ultraviolet absorbers include benzotriazole compounds substituted with aryl groups (for example, U.S. Pat. No. 3,533
3.794), 4-thiazolidone compounds (e.g., U.S. Pat. No. 3,314.794, U.S. Pat. No. 3,352)
681), benzophenone compounds (e.g., those described in JP-A-46-2784), nichic acid ester compounds (e.g., as described in U.S. Pat. Nos. 3,705.805 and 3,707.375) ), butadiene compounds (such as those described in US Pat. No. 4,045,229), or benzoxidole compounds (such as those described in US Pat. No. 3,700,455). Furthermore, those described in US Pat. No. 3,499.762 and Japanese Patent Application Laid-Open No. 54-48535 can also be used. The silver halide used in the silver halide emulsion used in the present invention includes conventional silver halide emulsions such as silver bromide, silver chloride, silver iodobromide, silver filler, and silver chloroiodobromide. Includes anything used. The silver halide used in the present invention is spectral sensitized by selecting an appropriate sensitizing dye in order to impart photosensitivity in the required wavelength range. Dyes that may be used include cyanine dyes, merocyanine/dyes, complex cyanine dyes, complex merocyanine dyes, holopolar-cyanine dyes, hemicyanine dyes, styryl dyes and hesioxonol dyes. Useful sensitizing dyes include German Patent No. 929.080, U.S. Pat.
No. 8, No. 2.503゜776, No. 2.519.001
No. 2.912.329, No. 3,656°959, No. 3,672.897, No. 3,694,217,
No. 4,025゜349, No. 4,046,572, British Patent No. 1.242.588, Japanese Patent Publication No. 14030/1973
No. 52-24844. These sensitizing dyes may be used alone or in combination, and combinations of sensitizing dyes are often used particularly for the purpose of supersensitization. Representative examples are U.S. Patent No. 2.688.545 and U.S. Patent No. 2.9
No. 77.229, No. 3,897.060, No. 3,52
No. 2.052, No. 3,527,641, No. 3.617
, No. 293, No. 3,628.964, No. 3,666.
No. 480, No. 3.672.898, No. 3,679.4
No. 28, No. 3,703.377, No. 3.769,30
No. 1, No. 3,814,609, No. 3,837.862
No. 4.026,707, British Patent No. 1.344',
No. 281, No. 1,507.803, Special Publication No. 43-49
No. 36, No. 53-12375, JP-A No. 52-1106
No. 18, No. 52-109925. Furthermore, the silver halide emulsion used in the present invention can contain various known photographic additives. For example, R
Photographic additives such as those described in @5earch Disclo@ure 17643. As the support for the silver halide photographic material of the present invention, conventionally known supports such as plastic film, plastic laminated paper, baryta paper, synthetic paper, etc. may be used as appropriate depending on the purpose of use. Further, the silver halide color photographic light-sensitive material of the present invention can have any configuration used in the art. The silver halide color photographic material of the present invention thus constructed can be subjected to color development treatment after exposure, and various photographic processing methods can be used. The aromatic primary amine color developing chemicals used in the color developing solution of the present invention include known ones that are widely used in various color photographic processes. These developers include aminophenol and p-phenylenediamine derivatives. These compounds are generally used in the form of salts, such as hydrochlorides or sulfates, since they are more stable than in the free state. These compounds are also generally present at a concentration of about 0.11 to about 30.9 for Color Developer IJK, preferably Color Developer II! About 1g to about 1.
Used at a concentration of 5Ji'. Examples of aminophenol-based developers include 0-aminophenol, p"7mino7a-nol, and 5-amino-2
-oxytoluene, 2-amino-3-oxytoluene,
Includes 2-oxy-3-amino-1°4-dimethylbenzene. Particularly useful primary aromatic amine color developers are N,
It is an N'-dialkyl-p-fuynylene diamine compound, and the alkyl group and fuminyl group may be substituted with any substituent. Among them, examples of compounds useful for vomiting include N,N'-diethyl-p-phenylenediamine hydrochloride, N-methyl-p-phenylenediamine hydrochloride, N,N'-dimethyl-p-phenylenediamine hydrochloride, 2 -Amino-5-(N-ethyl-N-dodecyl aminoco-toluene, N-ethyl-N-β-methanesulfonamidoethyl-3-methyl-4-aminoaniline sulfatejJ
[, N-ethyl-N-β-hydroxyethylaminoanilys, 4-amino-3-methyl-N, N/-diethylaniline, 4-amino-N-(2-methoxyethyl)-N-ethyl -3-methylaniline-p-toluenesulfonate and the like can be mentioned. In addition to the above-mentioned primary aromatic amine-based color developer, the color developer used in the process of the present invention includes ingredients that are normally added to color developers, such as sodium hydroxide and sodium carbonate. , alkaline agents such as potassium carbonate, alkali metal sulfites, alkali metal bisulfites,
Alkali metal thiocyanates, alkali metal halides, benzyl alcohol, water softeners, thickeners, and the like can also be optionally contained. The pH value of this color developer is usually 7 or higher, 1 most commonly about lθ~
It is 13. In the present invention, color development treatment is performed, and after death, treatment is performed with a treatment liquid having fixing ability.1. When the processing liquid having the fixing ability is a fixing liquid, a bleaching process is performed before that. A metal complex salt of an organic acid is used as the bleaching agent in the bleaching solution or bleach-fixing solution used in the bleaching process, and the metal complex salt oxidizes metallic silver produced during development and converts it into silver halide. It has the effect of coloring the uncolored part of the coloring agent, and its structure is aminopolycarboxylic acid, oxalic acid, citric acid, and other organic acids, and iron, cobalt,
It is coordinated with metal ions such as copper. The most preferred organic acids used to form such metal complexes of organic acids include polycarboxylic acids or aminopolycarboxylic acids. These polycarboxylic acids or aminopolycarboxylic acids may be alkali metal salts, ammonium salts or water-soluble amine salts. Specific representative examples of these include the following. [1] Ethylenediaminetetraacetic acid [2] Diethylenetriaminepentaacetic acid [3] Ethylenediamine-N-(β-oxyethyl)-N,N',N'-triacetic acid [4] Propylenediaminetetraacetic acid [5] Nitri I:I) Dichloroacetic acid [6] Dichlorohexanediaminetetraacetic acid [7]
Iminodiacetic acid (8) Dihydroxyethylglycine citric acid (t or tartaric acid)

[9] Ethyl ether diamine tetraacetic acid [10]
Glycol ether diamine tetraacetic acid [11]
Ethylenediaminetetrapropionic acid [ν] Phenylenediaminetetraacetic acid [13] Ethylenediaminetetraacetic acid disodium salt [14] Ethylenediaminetetraacetic acid tetra(trimethylammonium) salt [15] Ethylenediaminetetraacetic acid tetrasodium salt [16] Diethylenetriaminepentaacetic acid pentasodium salt [171 Ethylenediamine-N-(β-oxyethyl)
-N, N to N'-Sodium triacetate [18] Sodium propylene diamine detraacetate (19) =) Sodium lilotriacetate [Sh] Sodium cyclohexanediamine tetraacetate The bleaching solution used is as described above. It contains a metal complex salt of an organic acid as a bleaching agent and may also contain various additives. As additives, it is particularly desirable to include rehalogenating agents, metal salts, and chelating agents such as alkali halides or ammonium halides, such as potassium bromide, sodium bromide, sodium chloride, and ammonium bromide. Also, the pH of borates, oxalates, acetates, carbonates, phosphates, etc.
Buffers, amines in alcohol, polyethylene oxides, and other substances known to be added to ordinary bleaching solutions can be added as appropriate. In addition, the one-foot fixing solution and bleach-fixing solution contain ammonium sulfite,
Potassium sulfite, ammonium bisulfite, potassium bisulfite, sodium bisulfite, ammonium metabisulfite, potassium metabisulfite, metabisulfite) Sulfites such as IJum, boric acid, borax, sodium hydroxide, potassium hydroxide , sodium carbonate, potassium carbonate, sodium bicarbonate, potassium bicarbonate, acetic acid, sodium acetate, and ammonium hydroxide. When carrying out the process of the present invention while replenishing the bleach-fix solution (bath) with a bleach-fix replenisher, the bleach-fix solution (bath) may contain thiosulfate, thiocyanate, sulfite, etc. These salts may be added to the bleach-fixing replenisher to replenish the processing bath. In the present invention, in order to increase the activity of the bleach-fix solution, air or oxygen may be blown into the bleach-fix tank and the bleach-fix replenisher storage tank, if desired, or an appropriate oxidizing agent, e.g. Hydrogen peroxide, bromine salt, persulfate, etc. may be added as appropriate. (Example) Next, the present invention will be specifically explained by using examples. [Example-1] The magenta coupler of the present invention and the comparative coupler as shown in Table 1 were each taken in an amount of 0.1 mol per mol of silver, and tricresyl phosphate and 3 Add twice the amount of ethyl acetate and heat to completely dissolve. This solution was mixed with a 5% aqueous solution of Alkanol B (alkylnaphthalene sulfonate, manufactured by Depont).
It was mixed with a 5% gelatin aqueous solution 1200- containing 0aLl and emulsified and dispersed using an ultrasonic disperser to obtain an emulsion. Thereafter, this dispersion was mixed into a heat-sensitive silver iodobromide emulsion (silver iodide 6 mol%).
2% solution of 1,2-bis(vinylsulfonyl)ethane (water:methanol=1) as a hardening agent.
:1) 120- was added, coated on a subbed transparent polyester base and dried to prepare a sample. (Amount of coated silver: 20ff+9/Zoo cI) The sample thus obtained was subjected to wedge exposure according to a conventional method, and then the following development treatment was performed. The results are shown in Table 1. [Development treatment process] Color development Bleach for 3 minutes and 15 seconds at ℃
Solution Wash with water for 4 minutes and 4 seconds Fix for 3 minutes and 15 seconds Solution
# 4 minutes (9) Sand water washing 〃
Stabilizing solution for 3 minutes and 15 seconds W 1 minute (to) seconds Drying 47° C.±5° C. 16 minutes I seconds The composition of the nine processing solutions used in each treatment technique is as follows. [Color developer composition] [Bleach composition] r Ethylenediaminetetraacetic acid ferric ammonium salt 100g Ethylenediaminetetraacetic acid 1G, F ammonium bromide 150II glacial acetic acid
40-Sodium osubate
10j' water is added to make IJl, and the ammonia water i9 is adjusted to pH 3.5 using glacial acetic acid. [Fixer composition] Ammonium thiosulfate 1801 Anhydrous sodium sulfite 1211 Sodium metabisulfite 2.51 Sodium ethylenediaminetetraacetate 0.51 Sodium carbonate 10j' Add water to make 1. [Stabilizing liquid composition] Formalin (37% aqueous solution) 2d Konidax (manufactured by Konishiroku Photo Industry ■) 5d Add water to make 11. Table 1 1) The specific sensitivity is 100 for sample 11 using comparative coupler 1 at the number of teeth of the exposure amount that gives a fog density of ±0.11 density. 2) 0.9% temperature and humidity controlled to 30℃, 62%RH'
After placing the sample in a sealed container containing 6 cc of formalin aqueous solution for 3 days, color development is performed. For comparison, a sample not treated with formalin is also developed. 3) The sample after the color development treatment was irradiated with a quinanone 7-dometer for 8 days, and it was found that there was residual dye retention after the treatment at the initial density D=1.0. ] Comparative coupler 1 Comparative coupler 2 Comparative coupler 3 (J CH. Comparative coupler 4 Table 1 shows that the couplers of the present invention have good color development, formalin resistance,
It is clear that all of the requirements of light resistance and light resistance are satisfied. [Example 2] Samples 11 to 19 in Example 1 were subjected to wedge exposure in the same manner as in Example 1, and then the following development treatment was performed. The results are shown in Table 2. Specific sensitivity and light resistance were measured in the same manner as in Example-1. [Development processing process] Color development, 3 minutes bleach fixing at ℃°C
In each treatment step, the composition of the treatment liquid used was as in FH. [Color developing solution] [Bleach-fixing solution] [Stabilizing solution] Table 2 [Example-3] The following layers were coated in order on Anataseya's polyethylene resin-coated paper containing titanium oxide. A silver oxide color photographic material was prepared. The following addition amount t! Shown is per 100 cIIt. (1) 28 mg of gelatin, a blue-sensitive silver chlorobromide emulsion with a silver content of 5Ni, and a Y-grain of 8~ and 0
．． A layer containing 39 di-octyl phthalate coupler solvent in which 1 2.5-di-t-octylhydroquinone was dissolved. @12IIg gelatin, 0.5■ 2.5-di-t-
An intermediate layer containing octylhydroquinone and 92 Da of dibutyl phthalate UV absorber solvents in which 4 to 4 UV absorbers are dissolved. (3) 18 mg of gelatin, a green-sensitive silver chlorobromide emulsion with a silver content of 4~, and 5η of M-coupler, 2 da of antioxidant, and 0.2~ of 2.5-di-t-octylhydroquinone. A layer containing 2,5 I#g of dioctyl phthalate in a solvent. (4) An intermediate layer containing the same composition as (2). (5) Gelatin of t61R9, a red-sensitive silver chlorobromide emulsion with a silver content of 4μ, a C-coupler of 3.5μ and 2.5-di-t-octylhydroquinone of 0.1111p were dissolved. Layer containing 0In9 tricresyl phosphate coupler solvent. (6) Gelatin protective layer containing 9IR9 gelatin. A coating aid is added to each layer (1) to (6), and further K(
A gelatin crosslinking agent was added to layers 4) and (6). As the ultraviolet absorbers (2) and (4), a mixture of UV-1 and UV-2 having the following structure was used. Di-t-pentylhydroquinone di-octyl ether was used as the antioxidant in (3). The above multilayer photosensitive material was processed in the same manner as in Example-2. Table 3 shows the Y-coupler, M-coupler, and C-coupler used in each layer and the results. Each sample was measured for magenta density after exposure to white light. Specific sensitivity and light resistance were measured in the same manner as in Example-1. It is clear from Table 3 that the light fastness of the dye image of the coupler of the present invention is excellent, and it is also clear that it can be further improved by using an ultraviolet absorber. 0 Ultraviolet absorber UV-1 UV-2 Hata Y-Coupler letter C-Coupler procedural amendment letter November 26, 1980 November 15, 1980 Submitted patent case (10) 2, name of invention Silver halide color Photographic Light-sensitive Material 3, Relationship with the Amendment Person Case Patent Applicant Address 1-26-2 Nishi-Shinjuku, Shinjuku-ku, Tokyo Name (1)
27) Roku Konishi Photo Industry Co., Ltd. 4, Agent 19
1. Residence: 1 Sakura-cho, Hino-shi, Tokyo, Vol. 6, Specification subject to amendment.

Claims (1)

[Scope of Claims] A silver halide color photographic light-sensitive material having at least one silver halide emulsion layer on a support, in which at least one magenta coupler represented by the following general formula is contained in the silver halide emulsion layer. A silver halide color photographic light-sensitive material characterized by containing. General formula ▲ There are mathematical formulas, chemical formulas, tables, etc. ▼ [In the formula, R_1 is tertiary alkyl, R_2 is secondary or tertiary
represents a class alkyl, and X represents a halogen. ]