JPS6119984B2 - - Google Patents

Description

[Detailed description of the invention]

The present invention relates to a silver halide color photographic light-sensitive material, and more particularly to a silver halide color photographic light-sensitive material having improved desilvering performance. In silver halide color photographic materials that form a dye image by coupling with the oxidation product of an aromatic primary amine developing agent such as N.N-disubstituted paraphenylene diamine, it is used in the desilvering process of the processing. The phenomenon of desilvering failure, in which the developed silver is not sufficiently removed, is often observed, especially in U.S. Patent No.
It is known that this phenomenon is likely to occur in silver halide color photographic light-sensitive materials using couplers having an oil-soluble group as described in No. 2322027 or No. 2360289. When desilvering failure occurs, the color of the dye image becomes cloudy due to the absorption of light in a spectroscopically wide wavelength range by the residual silver, and the color purity decreases markedly. It is also known to fade pigments.
Improving desilvering properties has become one of the major challenges for researchers. To address these drawbacks, certain compounds are known that can be incorporated into silver halide color photographic materials to improve their desilvering properties. For example,
-705 discloses a polymer containing water-soluble or alkali-soluble N-vinylpyrrolidone as a polymerization component, and U.S. Pat. No. 3,655,389 describes a polymer containing 2-(N-acyl)aminoethyl acrylate or A copolymer of -(N-acyl)aminoethyl methacrylate and N-vinylpyrrolidone is described as an agent for preventing poor desilvering. However, although these compounds exhibit the effect of improving the desilvering performance to some extent, they have the disadvantage of suppressing development, causing desensitization, a decrease in gamma, and the like. An object of the present invention is to provide a silver halide color photographic material that has good desilvering performance and does not inhibit development. The present inventors have discovered that the above object can be achieved by a silver halide color photographic material containing a novel desilvering accelerator. That is, the support has at least one photosensitive silver halide emulsion layer and at least one non-photosensitive auxiliary layer, and at least one of these constituent layers contains a repeating unit represented by the following general formula []. The above object could be achieved by a silver halide color photographic light-sensitive material containing a polymer containing the following. Here, the non-photosensitive auxiliary layer refers to a layer that does not contain photosensitive silver halide, such as a protective layer, an intermediate layer, a filter layer, and an antihalation layer. In the formula, R represents a hydrogen atom or a methyl group,
X represents an oxygen atom or a group represented by the formula -NR' (where R' represents a hydrogen atom or an alkyl group), A represents an alkylene group, and Z represents an oxygen atom, a methylene group or an ethylene group. If the number of carbon atoms forming the alkyl group of R' increases, the effect of the present invention will be weakened, so the number of carbon atoms should be selected from 1 to 4, and within this range, it can be linear or branched. is also valid. The effect of the alkylene group A also varies depending on the number of carbon atoms, preferably 1 to 4, and within this range, it may be linear or branched. The polymer used in the present invention is effective as long as it has a repeating moiety represented by the general formula [], and a copolymer may be formed within a composition ratio range that does not impair its effects. In this sense, it is preferable that the component represented by the general formula [ ] is 30 mol % or more, and more preferably 50 mol % or more.
The polymer used in the present invention contains one or more monomers represented by the following general formula [] or a monomer represented by the general formula [] and at least one ethylenically unsaturated compound monomer. Obtained by polymerization. [The symbols in the formula have the same meanings as in the general formula []]. General formula [] There is almost no difference in the effect of this polymer depending on its molecular weight, but a suitable molecular weight is about 5,000 to about 1,000,000. In terms of solubility in solvents and compatibility with hydrophilic binders, the molecular weight is approximately 5000 to approximately 5,000.
100000 is particularly preferred. The monomer represented by the above general formula [] can be synthesized by methods described in conventionally known literature and methods similar thereto. For example,
Dehydration reaction between carboxylic acid and a compound having a hydroxyl group, reaction between a carboxylic acid anhydride and a compound having a hydroxyl group or an amino group, condensation reaction by dehydrohalogenation of a carboxylic acid halide and a compound having a hydroxyl group or an amino group, carboxylic acid It can be synthesized by a transesterification reaction between a lower alcohol ester and a compound having a hydroxyl group, or by adding acrylamide or methacrylamide to an N-vinyl group in the presence of an appropriate catalyst.The synthesis is described in U.S. Patent No.
2882262, British Patent No. 930668, Canadian Patent No.
This can be carried out with reference to the method described in No. 993877, etc. Other ethylenically unsaturated compounds that form copolymers with the monomer represented by the general formula [] include acrylic acid, methacrylic acid, α-chloroacrylic acid, itaconic acid, citraconic acid, and α-methylglutaric acid. , maleic acid, fumaric acid, α-phenylmaleic acid, cinnamic acid, monovinyl malonate, monovinyl succinate, monovinyl adipate, monovinyl phthalate, crotonic acid, maleic acid monoalkyl esters (e.g., monomethyl maleate, maleic acid, monobutyl acid, monooctyl maleate, etc.), monoalkyl fumarate esters (e.g. monomethyl fumarate, monobutyl fumarate, etc.), monoalkyl itaconate esters (e.g. monoester itaconate, monobutyl itaconate, etc.), mesaconic acid , sorbic acid, aconic acid, vinylbenzoic acid, vinyl sulfonic acid, styrene sulfonic acid, sulfoalkyl acrylates (e.g. sulfopropyl acrylate, sulfobutyl acrylate, etc.), sulfoalkyl methacrylates (e.g. sulfopropyl methacrylate, sulfobutyl methacrylate, etc.) , sulfoalkyl acrylamides (e.g. 2-acrylamido-2-methylpropanesulfonic acid, etc.),
Sulfoalkylmethacrylamides (e.g. 2
-methacrylamido-2-methylpropanesulfonic acid, etc.), acrylic esters (such as methyl acrylate, ethyl acrylate, n-propyl acrylate, isopropyl acrylate,
n-butyl acrylate, isobutyl acrylate, sec-butyl acrylate, amyl acrylate, hexyl acrylate, 2-ethylhexyl acrylate, octyl acrylate, tert
-octyl acrylate, 2-phenoxyethyl acrylate, 2-chloroethyl acrylate,
2-bromoethyl acrylate, 4-chlorobutyl acrylate, cyanoethyl acrylate, diethylaminoethyl acrylate, benzyl acrylate, methoxybenzyl acrylate, cyclohexyl acrylate, 2-chlorocyclohexyl acrylate, furfuryl acrylate, tetrahydrofurfuryl acrylate, phenyl acrylate, 2- Hydroxyethyl acrylate, 2-hydroxypropyl acrylate, 2.
3-dihydroxypropyl acrylate, 4-hydroxybutyl acrylate, 2,2-dimethyl-3-hydroxypropyl acrylate, diethylene glycol monoacrylate, dipropylene glycol monoacrylate, glycerol monoacrylate, trimethylolethane monoacrylate, pentaerythritol monoacrylate , 2-methoxyethyl acrylate, 2-(2
-methoxyethoxy)ethyl acrylate, ω-
Methoxypolyethylene glycol acrylate (average number of moles added: 9), 2-hydroxy-3-chloropropyl acrylate, etc.), methacrylic acid esters (such as methyl methacrylate, ethyl methacrylate, n-propyl methacrylate,
Isopropyl methacrylate, n-butyl methacrylate, isobutyl methacrylate, sec-butyl methacrylate, hexyl methacrylate,
Dodecyl methacrylate, cyclohexyl methacrylate, benzyl methacrylate, 2-cyanoacetoxyethyl methacrylate, chlorobenzyl methacrylate, dimethylaminoethyl methacrylate, N-ethyl-N-phenylaminoethyl methacrylate, dimethylaminophenoxyethyl methacrylate, furfuryl methacrylate, tetrahydro Furfuryl methacrylate, phenyl methacrylate, naphthyl methacrylate, 2-hydroxyethyl methacrylate, 3-
Hydroxypropyl methacrylate, 2,2-dimethyl-3-hydroxypropyl methacrylate, diethylene glycol monomethacrylate,
Triethylene glycol monomethacrylate, dipropylene glycol monomethacrylate, glycerol methacrylate, trimethylolpropane monomethacrylate, pentaerythritol monomethacrylate, 2-methoxyethyl methacrylate, 2-(2-ethoxyethoxy)ethyl methacrylate, ω-butoxypolyethylene glycol methacrylate ( Average number of moles added 23), 1-
(bromo-2-methoxyethyl methacrylate, etc.), acrylamide, N-substituted acrylamides such as methylacrylamide, ethylacrylamide, n-propylacrylamide, n-
Butylacrylamide, tert-butylacrylamide, n-octylacrylamide, cyclohexylacrylamide, benzylacrylamide,
Hydroxymethylacrylamide, methoxyethylacrylamide, dimethylaminoethylacrylamide, phenylacrylamide, tolylacrylamide, naphthylacrylamide, dimethylacrylamide, dibutylacrylamide, N-
(1,1-dimethyl-3-oxobutyl)acrylamide, methylbenzylacrylamide, β-
Cyanoethyl acrylamide, acryloylmorpholine, N-methyl-N'-acryloylpiperazine, N-acryloylpiperidine, N-(1.
(1-dimethyl-3-hydroxybutyl)acrylamide, N-β-morpholinoethyl acrylamide, N-hydroxyethyl-N-methylacrylamide, N-2-acetamidoethyl-N-acetylacrylamide, acryloylhydrazine, etc.), methacrylamide, N -Substituted methacrylamides (e.g. methyl methacrylamide, n-
Butylmethacrylamide, sec-butylmethacrylamide, n-octylmethacrylamide, benzylmethacrylamide, cyclohexylmethacrylamide, dimethylmethacrylamide, dipropylmethacrylamide, hydroxymethylmethacrylamide, N-hydroxyethyl-N-methylmethacrylamide, N -methyl-N-phenylmethacrylamide, methacryloylhydrazine, etc.),
Allyl esters (such as allyl acetate, allyl caproate, allyl laurate, allyl benzoate, allyl acetoacetate, allyl lactate, etc.), allyl alcohol, allyl butyl ether, allyl phenyl ether, vinyl ethers (such as methyl vinyl ether, butyl vinyl ether, dodecyl vinyl ether, methoxyethyl vinyl ether, chloroethyl vinyl ether, hydroxyethyl vinyl ether, dimethylaminoethyl vinyl ether, benzyl vinyl ether, tetrahydrofurfuryl vinyl ether, vinyl phenyl ether, vinyl chlorophenyl ether, vinyl naphthyl ether, etc.), vinyl esters (e.g. vinyl acetate, vinyl propionate, vinyl caprylate, vinyl laurate, vinyl chloroacetate, vinyl methoxyacetate, vinyl acetoacetate, vinyl benzoate, vinyl chlorobenzoate, vinyl naphthoate, etc.), vinyl heterocyclic compounds (e.g. N -vinyloxazolidone, 4-vinylpyridine, N-vinylimidazole, N-vinylpyrrolidone, vinylthiophene, N-vinylcarbazole, etc.), styrenes (e.g. styrene, methylstyrene, diethylstyrene, isopropylstyrene, N-butylstyrene, n- Decylstyrene, benzolstyrene, chloromethylstyrene,
trifluoromethylstyrene, acetoxymethylstyrene, 4-methoxy-3-methylstyrene,
chlorostyrene, pentachlorostyrene, bromustyrene, fluorostyrene, vinylbenzoic acid methyl ester, etc.), crotonate amide, crotonate esters (e.g. butyl crotonate, hexyl crotonate, etc.), vinyl ketones (e.g. methyl vinyl ketone, phenyl vinyl ketone, methoxyethyl vinyl ketone, etc.), olefins (e.g. ethylene propylene, 1-hexene,
1-octyne, 1-dodecene, 5,5-dimethyl-1-octyne, butadiene, isoprene, etc.),
Itaconate esters (e.g. diethyl itaconate, dibutyl itaconate, etc.), maleate esters (e.g. diethyl maleate, dibutyl maleate, dioctyl maleate, etc.), fumarate esters (e.g. diethyl fumarate, dihexyl fumarate, etc.) ) Well-known compounds such as halogenated olefins (e.g. vinyl chloride, vinylidene chloride, isoprene, etc.), acrylonitrile, methacrylonitrile, etc.
One or more types can be used as necessary. Among these monomers, acrylic acid, methacrylic acid, vinyl sulfonic acid, sulfoalkyl acrylates,
Sulfoalkyl methacrylates, sulfoalkyl acrylamides, acrylic esters, methacrylic esters, vinyl esters, acrylamides, and the like are suitable. The homopolymer or copolymer of the present invention can be synthesized by methods similar to conventionally known radical polymerization techniques. For example, polymerization is generally
The polymerization is carried out at 20 to 180°C, preferably 40 to 120°C, in the presence or absence of a suitable polymerization solvent, using 0.05 to 5% by weight of a radical polymerization initiator based on the monomers to be polymerized. Polymerization solvents include benzene methyl alcohol, ethyl alcohol, isopropyl alcohol, t-butyl alcohol, acetone, methyl ethyl ketone, dioxane dimethyl formamide, dimethyl sulfoxide, chloroform, carbon tetrachloride, water, etc. Polymerization initiators include azobis compounds, peroxide, etc. Oxides, hydroperoxides, redox catalysts, etc., such as benzoyl peroxide, potassium persulfate, ammonium persulfate, t-butyl hydroperoxide, di-t-
-Butyl peroxide, azobisisobutyronitrile, etc. Depending on the purpose, the polymerization initiator, initiator concentration, polymerization solvent, monomer concentration, polymerization temperature,
The reaction time etc. may be selected arbitrarily. Next, typical examples of the polymer used in the present invention will be shown, but the present invention is not limited to these examples. The polymer used in the present invention is contained in at least one of the constituent layers containing a hydrophilic binder coated on the support, ie, the light-sensitive silver halide emulsion layer and the non-light-sensitive auxiliary layer. When it is contained in a non-photosensitive auxiliary layer, it is preferable that the layer is adjacent to a light-sensitive silver halide emulsion layer. Compared to the non-photosensitive auxiliary layer, the photosensitive silver halide emulsion layer has the same effect even if the amount of the polymer is smaller. The amount of these polymers to be contained generally depends on the type of polymer, the type of component layer to be contained, other additives used, etc., and in the light-sensitive silver halide emulsion layer containing couplers, the amount It depends on the type and amount of coupler used in the layer. Generally, an effect is observed when the amount added is 1/50 or more of the total amount of silver coated in each constituent layer, but if it is added in a large amount, it has a negative effect on the film properties, especially photosensitive silver halide containing couplers. When it is included in the emulsion layer, it will affect the color development effect, so the necessary and preferable amount should be determined taking this into consideration, but in general, the amount of hydrophilic binder in the layer to be included is 50% by weight. % or less. The polymer used in the present invention is added to the coating solution for forming the component layer in order to be included in the component layer. When added, the polymer may be mixed with water or a water-soluble organic solvent such as methyl alcohol, ethyl alcohol, dioxane, tetrahydrofuran, tetrafluoropropyl alcohol,
dimethylformamide, dimethylsulfoxide, etc.) or a mixture thereof. Examples of the hydrophilic binder used in the present invention include gelatin, gelatin derivatives, colloidal albumin, cellulose derivatives, polyvinyl alcohol, and polyacrylamide. These can be used as a compatible mixture of two or more if necessary. As the silver halide used in the silver halide color photographic light-sensitive material according to the present invention, common halides such as silver chloride, silver bromide, silver iodide, silver chlorobromide, silver iodobromide, silver chloroiodobromide, etc. Any of those used in silver oxide photographic emulsions are included. These silver halide grains may be coarse or fine, and the grain size distribution may be narrow or wide. Further, the crystals of these silver halide grains may be normal crystals or twin crystals, and any ratio of [100] planes to [111] planes can be used. Further, the crystal structure of these silver halide grains may be uniform from the inside to the outside, or may have a layered structure with different inside and outside.
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. These silver halide grains can be prepared by known methods commonly used in the art. The above silver halide photographic emulsion can be sensitized with chemical sensitizers such as noble metal sensitizers, sulfur sensitizers, selenium sensitizers and reduction sensitizers. Furthermore, photographic emulsions can be spectral sensitized or superchromically sensitized, if necessary, by using dyes such as cyanine, merocyanine, and carbocyanine alone or in combination, or in combination with styryl dyes, etc. . In the present invention, the silver halide emulsion layer may contain a stabilizer if necessary. Useful stabilizers include nitrogen-containing heterocyclic compounds such as tetrazaindene compounds, quaternary ammonium salts such as benzothiazolium compounds, and mercapto compounds such as mercaptobenzothiazole. The following couplers can be used in the silver halide color photographic material of the present invention. As the yellow coupler, an open chain ketomethylene compound has conventionally been used, and the generally widely used benzoylacetanilide type yellow coupler and pivaloylacetanilide type yellow coupler can be used. Furthermore, a two-equivalent type yellow coupler in which the carbon atom at the coupling position is substituted with a substituent that can be removed during the coupling reaction is also used. Specific examples of yellow couplers useful in the present invention are described below. (Y1) α-(4-carboxyphenoxy)-α-pivalyl-2-chloro-5-[γ-(2,4-di-
t-amylphenoxy)butyramide]acetanilide (Y2) α-pivalyl-2-chloro-5-[γ-
(2,4-di-t-amylphenoxy)butyramide]acetanilide (Y3) α-benzoyl-2-chloro-5-[α-
(dodecyloxycarbonyl)ethoxycarbonyl]acetanilide (Y4) α-(4-Carboxyphenoxy)-α-pivalyl-2-chloro-5-[α-(3-pentadecylphenoxy)butyramide]acetanilide (Y5) α-(1-benzyl-2,4-dioxo-
imidazolidin-3-yl)-α-pivalyl-
2-chloro-5-[γ-(2,4-di-t-amylphenoxy)butyramide]acetanilide (Y6) α-pivalyl-α-(1-benzyl-2-
Phenyl-3,5-dioxotriazolidine-
4-yl)-2'-chloro-5'-[γ-(2,4-
di-t-amylphenoxy)butyramide]acetanilide Examples of magenta couplers that can be used in the present invention include compounds such as pyrazolone, pyrazolotriazole, pyrazolinobenzimidazole, and indazolone. Examples of magenta couplers useful in the present invention are shown below. (M1) 1-(2,4,6-trichlorophenyl)
-3-[3-(2,4-di-t-amylphenoxyacetamide)benzamide]-5-pyrazolone (M2) 1-(2,4,6-trichlorophenyl)
-3-(3-dodecylsuccinimidebenzamide)-5-pyrazolone (M3) 4・4′-methylenebis{1-(2・4・6
-trichlorophenyl)-3-[3-(2,4-
di-t-amylphenoxyacetamide)benzamide]-5-pyrazolone} (M4) 1-(2,4,6-trichlorophenyl)
-3-(2-chloro-5-octadecylsuccinimideanilino)-5-pyrazolone (M5) 1-(2-chloro-4,6-dimethylphenyl)-3-{3-[α-(3-pentadecylphenoxy)butyramide]benzamide}-5-
Pyrazolone (M6) 1-(2,4,6-trichlorophenyl)
-3-(2-chloro-5-octadecylcarbamoylanilino)-5-pyrazolone (M7) 3-ethoxy-1-{4-[α-(3-pentadecylphenoxy)butyramide]phenyl}-5-pyrazolone (M8) 1-(2,4,6-trichlorophenyl)
-3-(2-chloro-5-tetradecanamideanilino)-5-pyrazolone As the cyan coupler used in the present invention, phenol or naphthol derivatives are generally used. Specific examples of cyan couplers useful in the present invention are described below. (C1) 1-Hydroxy-N-[δ-(2,4-di-
t-amylphenoxy)butyl]-2-naphthamide (C2) 2,4-dichloro-3-methyl-6-
(2,4-di-t-amylphenoxyacetamide)phenol (C3) 2,4-dichloro-3-methyl-6-(α
-(2,4-di-t-amylphenoxy)butyramide]phenol (C4) 1-Hydroxy-4-(3-nitrophenylsulfonamide)-N-[δ-(2,4-di-
t-amylphenoxy)butyl]-2-naphthamide (C5) 1-Hydroxy-4-[(β-methoxyethyl)carbamoyl]methoxy-N-[δ-(2.
4-di-t-amylphenoxy)butyl]-2
-naphthamide (C6) Hydroxy-4-(isopropylcarbamoyl)methoxy-N-dodecyl-2-naphthamide (C7) 2-perfluorobutyramide-5-[α
-(2,4-di-t-amylphenoxyhexanamide)phenol (C8) 1-Hydroxy-4-(4-nitrophenylcarbamoyl)oxy-N-[δ-(2,4-
di-t-amylphenoxy)butyl]-2-naphthamide In addition to the above couplers, colored magenta couplers and colored cyan couplers can also be advantageously used in the present invention. The silver halide photographic material of the present invention contains a development inhibitor-releasing coupler (so-called DIR coupler) or a development inhibitor-releasing substance, so-called DIR substance, for the purpose of improving image sharpness, graininess, etc. It is also possible. These may be used alone or in combination of two or more. Also, a so-called Wise coupler can be similarly used for tone adjustment and capri prevention. In order to incorporate these couplers and DIR materials into a silver halide photographic light-sensitive material, known techniques conventionally used for couplers can be applied. Hydroquinone-based compounds can generally be used as antistain agents used to prevent fog or stains that often occur due to unnecessary reactions between oxidized developing agents and couplers caused by air oxidation or the like. A surfactant may be added alone or in combination to the silver halide color photographic light-sensitive material of the present invention. As a surfactant, it can be used as a coating aid, an emulsifier, a permeability improver for processing liquids, an antifoaming agent, an antistatic agent, an anti-adhesive agent, and a material for improving photographic properties or controlling physical properties. Natural products such as saponin, nonionic surfactants such as alkylene oxide, glycerin, and glycidol, higher alkylamines, pyridine and other heterocycles, quaternary nitrogen onium salts, and cationic interfaces such as phosphonium or sulfonium. activator,
Various active agents can be used, such as anionic surfactants containing acidic groups such as carboxylic acid, sulfonic acid, phosphoric acid, sulfuric acid ester groups, and phosphoric acid ester groups, and amphoteric surfactants such as amino acids and aminosulfonic acids. The silver halide color photographic light-sensitive material of the present invention can be hardened by a conventional method. Examples of hardening agents used for this purpose include aldehyde compounds such as glutaraldehyde, vinylsulfonyl compounds, isocyanate compounds, acryloyl compounds, chlortriazine compounds, ethyleneimine compounds, and epoxy compounds. can. The silver halide color photographic material of the present invention may contain a fluorescent brightener in its constituent layers, if necessary. Typical fluorescent brighteners include diaminostilbene compounds. The silver halide photographic material of the present invention may contain an ultraviolet absorber such as benztriazoles, triazines, benzophenone compounds, or acrylonitrile compounds in its constituent elements. The silver halide color photographic light-sensitive material of the present invention can be developed to form images by various methods depending on the purpose. The processing steps may include at least color development, bleaching, and fixing, and two or more of these steps may be performed in one bath. Furthermore, it may be a method that forms a negative image or a method that forms a positive image, or may be a so-called external color processing in which the coupler is supplied from a processing solution. The necessary steps may be selected in the necessary order from among processing steps such as hardening, neutralization, water washing, black and white development, reversal, color development, bleaching, fixing, bleach-fixing, and stabilization. The time and temperature of these treatment steps can be appropriately selected depending on the purpose, and in particular, the treatment may be performed at a temperature of 20 to 70°C. The invention will be illustrated by the following examples. Example 1 Silver chloroiodobromide dispersion consisting of 4 mol% silver iodide and 80 mol% silver bromide chemically sensitized using sodium thiosulfate pentahydrate (400 g of gelatin per mol of silver halide) ), the yellow coupler (Y-
The emulsified dispersion of 5) was mixed with 2 x 10 ^-1 mol of yellow coupler per mol of silver halide, and 1 mol of anhydro-5-methyl-5'-methoxy-3,3'-sulfopropylselenacyanine hydroxide. A blue-sensitive silver halide emulsion containing 2 x 10 ^-4 mole per mole of 4-hydroxy-6-methyl-1,3,3a,7-tetrazaindene, bis(vinylsulfonylmethyl)ether, and saponin was added with the following: Make the desilvering failure inhibitor into a 10% aqueous solution and apply the amount 2.5mg/dm ²
It was coated on polyethylene resin-coated baryta paper so that the coated silver amount was 4.0 mg/dm ² , and a protective layer made of gelatin was further coated and dried. [Used anti-desilvering agent] Exemplary compounds (1), (7), (10), (20) Comparative compound (A)...Polyvinylpyrrolidone [Tokyo Kasei (K30) molecular weight 40000] Comparative compound ( B)...Polymer of 2-(N-acetyl-N-methyl)aminoethyl acrylate (molecular weight 42000) Comparative compound (C)...2-(N-acetyl-N-methyl)aminoethyl acrylate (N-vinyl Copolymer of pyrrolidone (monomer ratio 8:2) (molecular weight 65000) These samples were exposed to light in the usual manner and color development was performed according to the processing steps below. Processing step (31°C) Processing time Color development 3 minutes 30 seconds Bleach fixing BF-1 30 seconds or BF-2 1 minute Washing 3 minutes 30 seconds The composition of the processing solution used in this processing step was as follows.

【table】

[Table] After performing this color development process and drying, the resulting yellow image was measured using a densitometer (manufactured by Konishiroku Photo Industry Co., Ltd.).
KD-7R type) was used to measure the concentration, and the sensitivity and gamma were determined. However, the sensitivity was expressed as a relative sensitivity to a control sample to which no desilvering failure inhibitor was added. The results obtained are shown in Table 1.

[Table] Table 2 also shows the results of measuring the amount of residual silver in the maximum concentration part of the obtained sample by atomic absorption spectrometry.

【table】

[Used anti-desilvering agent]

Exemplary Compounds (3), (9), (15) Comparative Compounds Samples of (A) and (C) shown in Example 1 were wedge exposed and subjected to the following development treatment. Development process (31℃) Processing time Color development 3 minutes 30 seconds Bleach fixing 1 minute 30 seconds Washing with water 3 minutes 30 seconds However, the color developer used had the same composition as that shown in Example-1. The bleach-fix solution used had the same composition as BF-1 in Example-1. Table 3 shows the results of sensitometry performed according to a conventional method.

[Table] Next, the above sample was subjected to the same color development treatment as shown in Example 1, and then the bleach-fixing treatment was changed as described below. (BF-1) Same composition and same treatment as BF-1 of Example-1. (BF-2) Same composition and same treatment as BF-2 of Example-1. (BF-3) A solution having the same composition as BF-1 of Example-1 but adjusted to pH 8.2 was used and treated at 31° C. for 30 seconds. After the above treatment, the amount of residual silver in the maximum concentration portion of the obtained sample was measured by atomic absorption spectrometry, and the results are shown in Table 4.

[Used anti-desilvering agent]

Exemplary Compounds (6), (12), (22) Comparative Compounds (C) These samples shown in Example-1 were exposed to light in a conventional manner and treated with the following processing steps and treatment solution treatment method. Regarding bleaching The processing time was set at three levels. Processing process Processing time Processing temperature 1st development 3 minutes 38℃ 1st stop 30 seconds Water washing 1 minute Color development 3 minutes 40 seconds 43℃ 2nd stop 30 seconds 38℃ Water washing 1 minute Bleaching 6 minutes 00 seconds 38℃ 4 minutes 30 seconds 3 minutes 00 seconds Fixation 6 minutes 38℃ Water washing 3 minutes Stability 50 seconds [First developer] Sodium polyphosphate 2.0 g Sodium bisulfite (anhydrous) 8.0 g Phenidone 0.35 g Sodium sulfite 37.0 g Hydroquinone 5.5 g Sodium carbonate 33.0 g Sodium thiocyanate (10% aqueous solution)
13.8 ml Sodium bromide 1.3 g Potassium iodide (0.1% aqueous solution) 13.0 ml Add water to adjust to 1 PH9.9

[Bleach solution]

EDTA - ferric ammonium salt 170g Ammonium bromide 300g Add water to make it to 1 PH5.8 [Fixer] Sodium thiosulfate (anhydrous) 94.5g Sodium bisulfite (anhydrous) 17.6g Disodium phosphate (anhydrous) 15.0 g Add water to adjust to 1 PH6.0 [Stable bath] Polyoxyethylene ether alcohol 0.15g Formaldehyde (37.5% solution) 6.0 Add water to adjust to 1 Calculate the amount of residual silver in the maximum concentration part of the obtained sample by atomic The results measured by absorption method are shown in Table 5.

[Table] As is clear from Table 5, it is understood that the compounds according to the present invention have excellent desilvering performance and can further shorten the processing time.

Claims (1)

[Scope of Claims] 1. A silver halide color photographic light-sensitive material having at least one light-sensitive silver halide emulsion layer and at least one light-insensitive auxiliary layer on a support, wherein the light-sensitive silver halide emulsion in at least one of the layers or in at least one of the non-photosensitive auxiliary layer,
1. A silver halide color photographic material comprising a polymer having a molecular weight of about 5,000 to about 100,000 and containing 30 mol% or more of repeating units represented by the following general formula []. General formula [] [In the formula, R represents a hydrogen atom or a methyl group,
X is an oxygen atom or a group represented by the formula -NR'- (where R' is a hydrogen atom or a group having 1 to 4 carbon atoms)
represents a straight-chain or branched alkyl group), A represents a straight-chain or branched alkylene group having 1 to 4 carbon atoms, and Z represents a straight-chain or branched alkylene group;
represents an oxygen atom, methylene group or ethylene group. ] 2 The silver halide color photograph according to claim 1, characterized in that a polymer containing a repeating unit represented by the general formula [] is contained in at least one layer of the light-sensitive silver halide emulsion layer. photosensitive material. 3. The silver halide color photographic light-sensitive material according to claim 1 or 2, wherein the light-sensitive silver halide emulsion layer contains a coupler.