EP0356801A1 - Lichtempfindliches photographisches Silberhalogenidmaterial - Google Patents

Lichtempfindliches photographisches Silberhalogenidmaterial Download PDF

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Publication number
EP0356801A1
EP0356801A1 EP89115029A EP89115029A EP0356801A1 EP 0356801 A1 EP0356801 A1 EP 0356801A1 EP 89115029 A EP89115029 A EP 89115029A EP 89115029 A EP89115029 A EP 89115029A EP 0356801 A1 EP0356801 A1 EP 0356801A1
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EP
European Patent Office
Prior art keywords
group
silver halide
light
isothiazolone
sensitive silver
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Application number
EP89115029A
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English (en)
French (fr)
Inventor
Junichi Fukawa
Takeshi Habu
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Konica Minolta Inc
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Konica Minolta Inc
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Publication of EP0356801A1 publication Critical patent/EP0356801A1/de
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    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C1/00—Photosensitive materials
    • G03C1/005—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein
    • G03C1/06—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein with non-macromolecular additives
    • G03C1/061—Hydrazine compounds
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C1/00—Photosensitive materials
    • G03C1/005—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein
    • G03C1/06—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein with non-macromolecular additives
    • G03C1/37—Antiseptic agents

Definitions

  • This invention relates to a light-sensitive silver halide photographic material which gives images of high contrast, more particularly to improvement of trouble generated in high contrasting technique with a hydrazide compound.
  • printing sensitive material light-sensitive silver halide photographic material for printing
  • printing sensitive material has been generally endowed with the so called “lith development” processing aptitude for accompolishing high quality.
  • lith development it is impossible in mechanism to contain sulfite ion which is the preservative at high concentration in the development processing solution, and therefore stability of the developer is very poor, as is well known to those skilled in the art.
  • hydrazide compounds can obtain images of very high contrast.
  • development processing solution may suffer from fog generation, etc. undesirable in photographic performance when no adequate development supplementing agent is supplemented, but in the method by use of hydrazide, even when the fatigue degree of the development processing solution is not so great, generation of black dots like black sesame (hereinafter called pepper fog) is seen at the unexposed portion, for example, between the dots during halftoning by use of a contact screen in printing sensitive material, whereby a trouble may be caused to occur which can be a vital defect in commercial value.
  • pepper fog black dots like black sesame
  • the present inventors have studied intensively and consequently could develop a light-sensitive silver halide photographic material which does not impair high contrast while inhibiting the fog including pepper fog which is the drawback of the tone hardening technique by use of a hydrazide compound.
  • a first object of the present invention is to provide a light-sensitive silver halide photographic material capable of forming an image of high contrast stably by use of a hydrazide compound.
  • a second object of the present invention is to provide a light-sensitive silver halide photographic material with high contrast without generation of fog including pepper fog.
  • a light-sensitive silver halide photographic material having a hydrophilic colloid layer containing at least one layer of a light-sensitive silver halide emulsion layer provided on a support, wherein a hydrazide derivative is contained in said light-sensitive silver halide emulsion layer, and the above hydrophilic colloid layer contains at least one of the compounds represented by Formulae [II] and [III] shown below: wherein R represents hydrogen atom, a straight or branched alkyl group, a cyclic alkyl group, an alkenyl group, an aralkyl group, an aryl group, a heterocyclic group, an alkylamide group, an arylamide group, an alkylthioamide group, an arylthioamide group, an alkylsulfonamide group or an arylsulfonamide group, R 2 and R 3 each represent hydrogen atom, a halogen atom, an alkyl group, a
  • the hydrazide derivative to be used in the present invention may include the compounds represented by the following formulae [I -a], [I - b] and [I - c]. wherein R 1 and R 2 each represent an aryl group or a heterocyclic group, R represents a divalent organic linking group, n is 0 to 6, m is 0 or 1, and when n is 2 or more, respective R's may be either the same or different).
  • R 21 represents an aliphatic group, an aromatic group or a heterocyclic group
  • R 22 represents hydrogen atom, an alkoxy group which may be substituted, a heterocyclic oxy group, an amino group or an aryloxy group
  • P 1 and P 2 each represent hydrogen atom, an acyl group or a sulfinic acid group.
  • Ar represents an aryl group containing at least one of diffusion resistant group or silver halide adsorption promoting group
  • R 31 represents a substituted alkyl group.
  • R, and R 2 each represent an aryl group or a heterocyclic group
  • R represents a divalent organic linking group
  • n represents 0 to 6 and m represents 0 or 1.
  • the aryl group represented by R, and R 2 may include phenyl group, naphthyl group, and the heterocyclic group represented by R, and R 2 may include pyridyl group, benzothiazolyl group, quinolyl group, thienyl group, etc., but R, and R 2 may be preferably aryl groups.
  • the aryl group or heterocyclic group represented by R 1 and R 2 can introduce various substituents therein. Examples of substituents may include halogen atoms (e.g. chlorine, fluorine, etc.), alkyl groups (e.g. methyl, ethyl, dodecyl, etc.), alkoxy groups (e.g.
  • acylamino groups e.g. acetylamino, pivalylamino, benzoylamino, tetradecanoylamino, a-(2,4-di-t-amylphenoxy) butyrylamino, etc. ⁇
  • sulfonylamino groups e.g. methanesulfonylamino, butanesulfonylamino, dodecanesulfonylamino, ben- zenesulfonylamino, etc.
  • urea groups e.g.
  • phenylurea, ethylurea, etc. thiourea groups (e.g. phenylthiourea, ethylthiourea, etc.), hydroxy group, amino group, alkylamino groups (e.g. methylamino, dimethylamino, etc.), carboxy group, alkoxycarbonyl groups (e.g. ethoxycarbonyl), carbamoyl group, sulfo group and so on.
  • Examples of the divalent organic linking group represented by R may include alkylene groups (e.g. methylene, ethylene, trimethylene, tetramethylene, etc.), arylene groups (e.g.
  • phenylene, naphthylene, etc. aralkylene groups, etc.
  • the alkylene group may contain oxy group, thio group,seleno group, carbonyl group, (Rs represents hydrogen atom, an alkyl group, an aryl group), sulfonyl group, etc. in the bond.
  • R represents hydrogen atom, an alkyl group, an aryl group
  • sulfonyl group etc. in the bond.
  • Into the group represented by R can be introduced various substituents.
  • substituents may include -CONHNHR 4 . (R 4 . has the same meaning as R 1 and R 2 as described above), alkyl groups, alkoxy groups, halogen atoms, hydroxy group, carboxy group, acyl groups, aryl groups, etc.
  • R may be preferably a alkylene group.
  • the aliphatic group represented by R 21 may be preferably one having 6 or more carbon atoms, particularly a straight, branched or cyclic alkyl group having 8 to 50 carbon atoms.
  • the branched alkyl group may be cyclized so as to form a saturated hetero ring containing one or more hetero atoms.
  • the alkyl group may have substituent such as aryl group, alkoxy group, sulfoxy group, etc.
  • the aromatic group represented by R 21 is a monocyclic or bicyclic aryl group or unsaturated heterocyclic group.
  • the unsaturated heterocyclic group may be condensed with the monocyclic or bicyclic group to form a heteroaryl group.
  • benzene ring there may be included benzene ring, naphthalene ring, pyridine ring, pyrimidine group, imidazole ring, pyrazole ring, quinoline ring, isoquinoline ring, benzimidazole ring, thiazole ring, benzothiazole ring, etc., but amount them those containing benzene ring are preferred.
  • R 21 particularly preferred is an aryl group.
  • the aryl group or unsaturated heterocyclic group represented by R 21 may be substituted, and representative substituents may include straight, branched or cyclic alkyl groups (preferably monocyclic or bicyclic ones with an alkyl moiety having 1 to 20 carbon atoms), alkoxy groups (having preferably 1 to 20 carbon atoms), substituted amino groups (preferably amino groups substituted with alkyl groups having 1 to 20 carbon atoms), acylamino groups (having preferably 2 to 30 carbon atoms), sulfonamide groups (having preferably 1 to 30 carbon atoms), ureido groups (having preferably 1 to 30 carbon atoms) and others.
  • substituents may include straight, branched or cyclic alkyl groups (preferably monocyclic or bicyclic ones with an alkyl moiety having 1 to 20 carbon atoms), alkoxy groups (having preferably 1 to 20 carbon atoms), substituted amino groups (preferably amino groups substituted with alkyl groups having 1 to 20 carbon
  • the alkoxy group which may be substituted may have 1 to 20 carbon atoms and may be substituted with halogen atoms, aryl groups, etc.
  • the aryloxy group or the heterocyclic oxy group which may be also substituted may be preferably monocyclic, and the substituent may include halogen atoms, alkyl groups, alkoxy group, cyano group, etc.
  • R 22 Of the groups represented by R 22 , preferable are alkoxy groups or amino groups which may be also substituted.
  • a 1 and A 2 in the group group may be an alkyl group, alkoxy group which may be substituted, or a cyclic structure containing -0-, -S-, -N- group bond.
  • R 22 cannot be hydrazino group.
  • R 21 or R 22 in Formula [I - b] may be one having a ballast group conventionally used in the immobile additive for photography such as coupler, etc. incorporated therein.
  • the ballast group is a group having 8 or more carbon atoms relatively inert to photographic characteristic, and can be chosen from, for example, alkyl groups, alkoxy groups, phenyl groups, alkylphenyl groups, phenoxy groups, alkylphenoxy groups, etc.
  • R 21 or R 22 in Formula [I - b] may be also one having a group for strengthening adsorption to the surface of silver halide grains incorporated therein.
  • adsorptive groups there may be included the groups as disclosed in U.S. Patent 4,355,105 such as thiourea group, heterocyclic thioamide group, mercaptoheterocyclic group, triazole group, etc.
  • the compounds represented by the group [I - b] are particularly preferable.
  • Represenatative compounds represented by the above Formulae [I - b] and [I - b - a] are shown below.
  • Ar represents an aryl group containing at least one of diffusion resistant groups or silver halide adsorption promoting groups, and as the diffusion resistant group, a ballast group conventionally used in immobile additives for photography such as coupler, etc. is preferable.
  • the ballast group is a group having 8 or more carbon atoms relatively inert to photographic characteristic, and can be chosen from, for example, alkyl groups, alkoxy groups, phenyl groups, alkylphenyl groups, phenoxy groups, alkylphenoxy groups, etc.
  • silver halide adsorption promoting group there may be included the groups as disclosed in U.S. Patent 4,385,108 such as thiourea group, thiourethane group, heterocyclic thioamide group, mercaptoheterocyclic group, triazole group, etc.
  • R 3 represents a substituted alkyl group, and the alkyl group may be a straight, branched or cyclic alkyl group, including methyl, ethyl, propyl, butyl, isopropyl, pentyl, cyclohexyl and the like.
  • alkoxy e.g. methoxy, ethoxy
  • aryloxy e.g. phenoxy, p-chlorophenoxy
  • heterocyclic oxy e.g. pyridyloxy
  • mercapto alkylthio (e.g. methylthio, ethylthio), arylthio (e.g. phenylthio, p-chlorophenylthio), heterocyclic thio (e.g. pyridylthio, pyrimidylthio, thiadiazolylthio), alkylsulfonyl (e.g.
  • acetyloxy acetyloxy, benzoyloxy
  • alkylaminocarbonyloxy e.g. methylaminocarbonyloxy
  • arylaminocar- bonyloxy e.g. phenylaminocarbonyloxy
  • sulfo sulfamoyl
  • alkylsulfamoyl e.g. methylsulfamoyl
  • arylsulfamoyl e.g. phenylsulfamoyl
  • the hydrogen atom of hydrazide may be also substituted with a substituent such as sulfonyl group (e.g. methanesulfonyl, toluenesulfonyl), acyl group (e.g. acetyl, trifluoroacetyl), oxalyl group (e.g. ethoxalyl), etc.
  • sulfonyl group e.g. methanesulfonyl, toluenesulfonyl
  • acyl group e.g. acetyl, trifluoroacetyl
  • oxalyl group e.g. ethoxalyl
  • the amount of the compounds of Formulae [I - a], [I - b] and [I - c] contained in the light-sensitive silver halide material of the present invention should be preferably within the range of from 5 x 10- 7 to 5 x 10 -1 mol, more preferably 1 x 10- 5 to 1 x 10- 2 mol, per mol of silver halide contained in the light-sensitive silver halide photographic material.
  • R 1 represents hydrogen atom, a straight or branched alkyl group, a cyclic alkyl group, an alkenyl group, an aralykyl group, an aryl group, a heterocyclic group, an alkylamino group, an arylamide groups, an alkylthioamide group, an arylthioamide group, an alkylsulfoamide group, an arylsulfoamide group;
  • R 2 , R 3 each represent hydrogen atom, a halogen atom, an alkyl group, a cyclic alkyl group, an aryl group, a cyano group, an alkylthio group, an arylthio group, an alkylsulfoxide group, an alkylsulfonyl group, a heterocyclic group.
  • the above alkyl group, cyclic alkyl group, alkenyl group, heteocyclic group, aralkyl group and aryl group may have substitu
  • the alkyl group and the alkenyl group may have 1 to 36, more preferably 1 to 18 carbon atoms.
  • the cyclic alkyl group may have 3 to 12, more preferably 3 to 6 carbon atoms.
  • These alkyl groups, alkenyl groups, cyclic alkyl groups, aralkyl groups, aryl groups, heterocyclic groups may have substituents, and the substituent may be chosen from halogen atom, nitro, cyano, thiocyano, aryl, alkoxy, aryloxy, carboxy, sulfoxy, alkylcarbonyl, arylcarbonyl, alkoxycarbonyl, aryloxycarbonyl, sulfo, acyloxy, sufamoyl, carbamoyl, acylamino, diacylamino, ureido, thioureido, urethane, thiourethane, sulfonamide, heterocyclic group
  • the alkyl group may have 1 to 18, more preferably 1 to 9 carbon atoms.
  • the cyclic alkyl group may have 3 to 12, more preferably 3 to 6 carbon atoms.
  • These alkyl groups, cyclic alkyl groups and aryl groups may have substituents, and the substituent may include halogen atom, nitro group, sulfone group, aryl group, hydroxy group, etc.
  • R 1 represents hydrogen, a lower alkyl group or hydroxymethyl group
  • R 2 represents hydrogen or a lower alkyl group
  • R 1 represents hydrogen, a lower alkyl group or hydroxymethyl group
  • R 2 represents hydrogen or a lower alkyl group
  • the lower alkyl group one having 1 to 5 carbon atoms, particularly 1 carbon atom, is preferred.
  • the compound represented by Formulae [II] or [III] may be used in an amount preferably within the range of 1 x 10- 3 to 10% by weight, preferably 1 x 10- 3 to 3 % by weight, more preferably 5 x 10 -3 to 3% by weight, based on the hydrophilic colloid.
  • the above range may be more or less varied depending on the kind of the light-sensitive silver halide photograpic material, the layer into which it is added, the coating method, etc., as a matter of course.
  • the compound of the present invention may be dissolved in a solvent which has no deleterious influence on photographic performance, chosen from water and organic solvents such as methanol, isopropanol, acetone, etc. and added as the solution into the hydrophilic colloid, or coated on the protective layer or incorporated by dipping into a sterilizing agent solution.
  • a solvent which has no deleterious influence on photographic performance chosen from water and organic solvents such as methanol, isopropanol, acetone, etc.
  • a solvent which the compound is dissolved in a high boiling solvent, a low boiling solvent or a solvent mixture of both, then emulsified in the presence of a surfactant and then added into a solution containing the hydrophilic colloid or further coated on the protective layer, etc.
  • the silver halide to be used in the present invention may be either one of silver chlorobromide, silver chloroiodobromide, silver iodobromide.
  • the grain size of the silver halide is not particularly limited, but one with a mean grain size of 0.5 nm or less may be preferable, and the so called mono-dispersed grains with 90% or more of the total grains falling within ⁇ 40% from the mean grain size as the center are preferred.
  • the silver halide grains may have a crystal habit which may be either cubic, tetradecahedral and octahedral, and may be also the tablet type grain as disclosed in Japanese Unexamined Patent Publication No. 108525/1983.
  • the silver halide grains in the silver halide emulsion layer of the present invention may be prepared according to any one of the single jet method such as the normal mixing method, the reverse mixing method, etc. or the double jet method according to the simultaneous mixing method, more preferably the simultaneous mixing method. Also, any of the ammonia method, the neutral method, the acidic method or the modified ammonia method as disclosed in Japanese Patent Publication No. 3232/1983, more preferably the acidic method or the neutral method, may be employed.
  • metal atoms such as iridium, rhodium, osmium, bismuth, cobalt, nickel, ruthenium, iron, copper, zinc, lead, cadmium, etc. may be contained.
  • the content may be preferably within the range of 10- 8 to 10- 5 mol per mol of silver halide.
  • the silver halide grains may be preferably of the surface latent image type.
  • the silver halide photographic emulsion in the silver halide emulsion layer according to the present invention can be applied with chemical sensitization.
  • the chemical sensitization method is inclusive of sulfur sensitization, reduction sensitization and noble metal sensitization, but in the present invention, it is preferable to perform chemical sensitization by sulfur sensitization alone.
  • sulfur sensitizer other than sulfur compounds contained in gelatin, various sulfur compounds such as thiosulfates, thioureas, thiazoles, rhodanines, etc. can be employed, and specifically the sulfur sensitizers as disclosed in U.S. Patents 1574944, 2410689, 2728668 and Japanese Patent Publication No. 11892/1984 can be employed.
  • the silver halide photographic emulsion of the present invention can be imparted with photosensitivities to the respective desired photosensitive wavelength regions.
  • optical sensitization may be also effected by use of one or two or more kinds of spectral sensitizers.
  • optically spectral sensitizers which can be used advantageously in the present invention may include cyanines, car- bocyanines, melocyanines, trinucieus or tetranucleus melocyanines, trinucleus or tetranucleus cyanines, styryls, holopolar cyanines, hemine cyanines, oxonols, hemioxonols, etc., and these optically spectral sensitizers should preferably contain a basic group such as thiazoline, thiazole, etc.
  • nucleus such as rhodanine, thiohydantoin, oxsazolidinedione, barbituric acid, thiobarbituric acid, pyrazolone, etc. as a part of the structure as the nitrogen containing heterocyclic nucleus, and such nucleus can be also substituted with alkyl, hydroxyalkylhalogen, phenyl, cyano, aikoxy, and also these optically spectral sensitizers may be condensed with carbon ring or heterocyclic ring.
  • the silver halide photographic emulsion of the present invention it is possible to add stabilizers such as tetrazaindenes, antifoggants such as triazoles, tetrazoles, covering power enhancers, antiirradiation agents such as oxanol dyes, dialkylaminobenzylidene dyes, etc., humectants such as polymer latices, and other additives used for photographic emulsions in general such as extenders, film hardeners to be used in combination outside of the present invention.
  • stabilizers such as tetrazaindenes, antifoggants such as triazoles, tetrazoles, covering power enhancers, antiirradiation agents such as oxanol dyes, dialkylaminobenzylidene dyes, etc., humectants such as polymer latices, and other additives used for photographic emulsions in general such as extenders, film hardeners
  • the support of the light-sensitive silver halide photographic material of the present invention may be one conventionally used such as polyester base, TAC base, baryta paper, laminated paper, glass plate, etc.
  • the developer to be used for the light-sensitive silver halide photographic material of the present invention there can be used either one of the developer used for light-sensitive silver halide photographic materials in general and the lith developer.
  • the developing agent in these developers may include dihydroxybenzenes such as hydroquinone, chlorohydroquinone, catechol; 3-pyrazolidones such as 1-phenyl-3-pyrazolidone, 1-phenyl-4,4-dimethyl-3-pyrazolidone, 1-phenyl-4-methyl-3-pyrazolidone, 1-phenyl-4-methyl-4-hydroxymethyl-3-pyrazolidone; and further p-aminophenols such as N-methyl-p-aminophenol, N-(4-hydroxyphenyl)glycine; p-phenylenediamines such as Q-methanesulfonamide ester, ethylaminotoluidine, N,N-diethyl-p-phenylenediamine; and ascorbic acids, etc., and it
  • the developer can be constituted by adding otherwise preservatives such as sodium sulfite, potassium sulfite, formaldehyde, sodium hydrogen sulfite, hydroxylamine, ethylene urea; developing inhibitors of inorganic salts such as sodium bromide, potassium bromide, potassium iodide; at least one organic inhibitor such as 1-phenyl-5-mercaptotetrazole, 5-nitrobenzimidazole, 5-nitrobenzotriazole, 5-nitroindazole, 5-methylbenzotriazole, 4-thiazolin-2-thione, etc.; alkali agents such as sodium hydroxide, potassium hydroxide, etc.; alkanolamines having development accelerating effect such as diethanolamine, triethanolamine, 3-diethylamine-1-propanol, 2-methylamino-1-ethanol, 3-diethylamino-1,2-propanediol, diisopropylamine, 5-amino-1-pentanol, 6-amino-1-
  • the pH of the developer is not particularly limited, but may be preferably within the range of pH 9 to 13.
  • An example of the construction of the preferable developer for developing the light-sensitive silver halide photographic material of the present invention is as follows. That is, it is a developer prepared by adding 20 to 60 g/liter of hydroquinone and 0.1 to 2 g/liter of 1-phenyl-4-methyl-4-hydroxymethyl-3-pyrazolidone or 0.1 to 2 g/liter of 1-phenyl-4,4-dimethyl-3-pyrazolidone as the developing agent, 10 to 200 g/liter of sodium sulfite or 10 to 200 g/liter of potassium sulfite as the developer preservative, 1 to 10 g of sodium bromide or potassium bromide as the developing inhibitor of inorganic salt, 1 to 50 g/liter of alkanolamines having development accelerating effect, 0.05 to 2 g/liter of 5-methylbenzotriazole or 0.01 to 2 g/liter of 5-nitroindazole as the organic inhibitor, 1 to 50 g/liter of sodium carbonate or 10 to 800 ml/liter of an a
  • the light-sensitive silver halide photographic material of the present ivnention is developed with the developer as described above, and then the image is fixed via the process of fixing, water washing and drying.
  • the developing temperature and the developing time in the developing process are not particularly limited, but the developing temperature may be preferably in the range of 20 to 45 C, and the developing time in the range of 15 seconds to 200 seconds.
  • aqueous gelatin solution maintained at 40 °C were added simultaneously over 60 minutes an aqueous silver nitrate solution and an aqueous halide solution (KBr 40 mol%, NaCI 60 mol%) according to the controlled double jet method while maintaining pH at 3.0 and pAg at 7.7 to prepare a mono-dispersed silver chlorobromide emulsion with a mean grain size of 0.30 ⁇ m.
  • the emulsion was desalted and washed with water in conventional manners, and then 15 mg of sodium thiosulfate was per mol of silver chlorobromide, followed by chemical ripening at 60 ° C for 60 minutes.
  • aqueous gelatin solution containing an aqueous sodium 1-decyl-2-(3-isopentyl)succinate-2-sulfonate solution, a methyl methacrylate copolymer with a mean particle size of 3.0 ⁇ m as the matte agent, and 2-hydroxy-4,6-dichloro-1,3,5-triazine sodium salt as the film hardener to prepare a coating solution for protective layer, which was coated by simultaneous overlaying together with the above emulsion coating solution on a PET base, followed by drying.
  • aqueous sodium 1-decyl-2-(3-isopentyl)succinate-2-sulfonate solution a methyl methacrylate copolymer with a mean particle size of 3.0 ⁇ m as the matte agent
  • 2-hydroxy-4,6-dichloro-1,3,5-triazine sodium salt as the film hardener
  • the amount of gelatin attached was 2.5 g/m 2 in the emulsion layer, 1.0 g/m 2 in the protective layer, the amount of AgX grains attaches was 3.5 g/m 2 as calculated on silver, the amount of the butyl acrylate latex polymer attached was 2 g/m 2 , the amount of the matte agent attached was 30 mg/m 2 , the amount of the film hardener attached was 2 g/100 g gelatin based on the amount of gelatin attached of the the emulsion layer and the protective layer inclusive.
  • the compounds (a) - (b) shown below were employed as the comparative compound added in the silver halide emulsion layer.
  • the above composition A and the composition B were dissolved in this order in 500 ml of water, and made up to one liter before use.
  • the pH of the fixer was adjusted to 6 with acetic acid.
  • a light-sensitive silver halide photographic material which is extremely high in contrast, and also improved in generation of peper fog without impairing tone hardening could be provided.

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  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
EP89115029A 1988-08-17 1989-08-15 Lichtempfindliches photographisches Silberhalogenidmaterial Withdrawn EP0356801A1 (de)

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JP205229/88 1988-08-17
JP20522988A JPH0253047A (ja) 1988-08-17 1988-08-17 ハロゲン化銀写真感光材料

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0449563A1 (de) * 1990-03-30 1991-10-02 Konica Corporation Photographisches Silberhalogenidmaterial
US5126227A (en) * 1990-10-17 1992-06-30 Eastman Kodak Company High contrast photographic elements containing ballasted hydrophobic isothioureas
US5196292A (en) * 1991-10-17 1993-03-23 Eastman Kodak Company Nucleated high contrast photographic elements containing ballasted thioether isothioureas to inhibit pepper fog and restrain image spread
US5232818A (en) * 1991-07-25 1993-08-03 Eastman Kodak Company Nucleated high contrast photographic elements containing thioether compounds to inhibit pepper fog and restrain image spread
EP0578170A1 (de) * 1992-07-07 1994-01-12 Fuji Photo Film Co., Ltd. Photographisches Bildverarbeitungsverfahren
EP0618486A3 (de) * 1993-03-31 1994-11-23 Fuji Photo Film Co Ltd Photographisches Silberhalogenidmaterial.

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0090584A2 (de) * 1982-03-27 1983-10-05 Konica Corporation Lichtempfindliches photographisches Silberhalogenidaufzeichnungsmaterial

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0090584A2 (de) * 1982-03-27 1983-10-05 Konica Corporation Lichtempfindliches photographisches Silberhalogenidaufzeichnungsmaterial

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, vol. 9, no. 273 (P-401)[1996], 30th October 1985; & JP-A-60 119 547 (KONISHIROKU SHASHIN KOGYO K.K.) 27-06-1985 *
RESEARCH DISCLOSURE, no. 235, November 1983, pages 346-352, disclosure no. 23510, Havant Hampshire, GB; "Development nucleation by hydrazine and hydrazine derivatives" *

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0449563A1 (de) * 1990-03-30 1991-10-02 Konica Corporation Photographisches Silberhalogenidmaterial
US5126227A (en) * 1990-10-17 1992-06-30 Eastman Kodak Company High contrast photographic elements containing ballasted hydrophobic isothioureas
US5232818A (en) * 1991-07-25 1993-08-03 Eastman Kodak Company Nucleated high contrast photographic elements containing thioether compounds to inhibit pepper fog and restrain image spread
US5196292A (en) * 1991-10-17 1993-03-23 Eastman Kodak Company Nucleated high contrast photographic elements containing ballasted thioether isothioureas to inhibit pepper fog and restrain image spread
EP0578170A1 (de) * 1992-07-07 1994-01-12 Fuji Photo Film Co., Ltd. Photographisches Bildverarbeitungsverfahren
US5340704A (en) * 1992-07-07 1994-08-23 Fuji Photo Film Co., Ltd. Method for processing a silver halide photographic material
EP0618486A3 (de) * 1993-03-31 1994-11-23 Fuji Photo Film Co Ltd Photographisches Silberhalogenidmaterial.
US5468592A (en) * 1993-03-31 1995-11-21 Fuji Photo Film Co. Ltd. Silver halide photographic material

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