KR860004333A - Silver halide photosensitive material - Google Patents

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Description

Silver halide photosensitive material

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Claims (18)

In a silver halide photographic photosensitive material having at least one silver halide emulsion layer and at least one hydrophilic colloid layer on a substrate, a triphenyltetrazolium compound represented by the following general formula (I) comprises at least one silver halide emulsion layer and a hydrophilic colloid layer: Silver halide photosensitive material characterized in that it is incorporated into. General formula (Ⅰ) [Wherein, R ¹ , R ² and R ³ are each a hydrogen atom or a group having a negative value of sigma (σp), and X Is an anion, provided that R ¹ , R ² and R ³ are not simultaneously hydrogen atoms. The silver halide photographic photosensitive material according to claim 1, wherein the compound represented by the general formula (I) is a compound represented by the following general formula (I). General formula (Ⅰ) [Wherein, R ¹ , R ² and R ³ are each a hydrogen atom or a group in which the Hamet sigma value ( σ p) is a negative value, and X Is an anion, provided that R ¹ , R ² and R ³ are not simultaneously hydrogen atoms. The silver halide photographic photosensitive material according to claim 1, wherein the compound represented by the general formula (I) is a compound represented by the following general formula (I) ". General formula (I) ″; [Wherein, R ¹ , R ² and R ³ are each a hydrogen atom or a Hammet sigma value (σp) having a negative value, and X Is an anion, provided that R ¹ , R ² and R ³ are not hydrogen atoms at the same time. The silver halide photographic photosensitive material according to claim 1, wherein any one of substituents R ¹ , R ² and R ³ is a hydrogen atom. The silver halide photographic photosensitive material according to claim 4, wherein the remaining two substituents other than hydrogen atoms in R ¹ , R ² and R ³ are each an alkyl group. 6. The silver halide photographic photosensitive material according to claim 5, wherein the two substituents are R ² and R ³ . 6. The silver halide photographic photosensitive material according to claim 5, wherein the alkyl groups each have the same carbon atom. 8. The silver halide photographic photosensitive material according to claim 7, wherein the alkyl groups are identical to each other. The silver halide photographic photosensitive material according to claim 1, wherein the total number of carbon atoms of the substituents R ¹ , R ^2, and R ^{3 in} the general formula (I) is 4 or less. The silver halide photographic photosensitive material according to claim 9, wherein the total carbon atoms of the substituents R ¹ , R ^2, and R ^{3 in} the general formula (I) are 2 or less. The silver halide photographic photosensitive material according to claim 1, wherein the compound represented by formula (I) is contained in the silver halide photographic photosensitive material in an amount of about 1 to about 10 mg per mole of silver halide. The silver halide photographic photosensitive material according to claim 1, wherein X in the general formula (I) is an anion that lowers the hydrophilicity of the compound of the general formula (I). The silver halide photographic photosensitive material according to claim 1, wherein the silver halide emulsion in the silver halide emulsion layer is silver chlorobromide having an AgCl / AgBr ratio of 100/0 to 2/98. The silver halide photographic photosensitive material according to claim 1, wherein the silver halide emulsion in the silver halide emulsion has an average particle size of 0.15-0.4 µm and a particle size distribution coefficient expressed as (standard deviation of the particle size distribution) / (average particle size) is 15% or less. The method of claim 1, wherein the silver halide emulsion in the silver halide emulsion layer is prepared by a method of producing a silver halide photoemulsion by adding a water-soluble silver saline solution and an aqueous water-soluble halide solution in a hydrophilic colloidal aqueous solution by a double jet method. The water-soluble silver saline solution and the water-soluble halide aqueous solution do not exceed the rate of generation of silver halide particles in the hydrophilic colloidal aqueous solution, and the value EAg in the hydrophilic colloidal aqueous solution is from 1/30 to the total addition time from the beginning of mixing. The EAg value is fixed within the range of 80-140mV during the time corresponding to 1/5, while maintaining the fixed value within the range of 140-200mV and at least half of the accumulation time. Silver halide photosensitive material that maintains a constant value. The silver halide photographic photosensitive material according to claim 2, wherein the silver halide particles contained in the silver halide emulsion layer are formed in the presence of 1 × 10 ⁻⁷ to 5 × 10 ⁻⁷ of a water-soluble rhodium salt per mole of silver halide. The silver halide photographic photosensitive material according to claim 15, wherein the compound represented by the general formula (I) 'is a compound represented by the following general formula (I) ". Formula (I) ″: [Wherein R ¹ , R ² and R ³ are each a hydrogen atom or a group having a negative value of sigma (σp), and X Is an anion, provided that R ¹ , R ² and R ³ are not simultaneously hydrogen atoms. The silver halide photographic photosensitive material according to claim 15, wherein the water-soluble rhodium salt is a halogen complex compound of trivalent rhodium. ※ Note: The disclosure is based on the initial application.