EP0484871A1 - Un matériau photographique couleur à l'halogénure d'argent sensible à la lumière - Google Patents

Un matériau photographique couleur à l'halogénure d'argent sensible à la lumière Download PDF

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Publication number
EP0484871A1
EP0484871A1 EP91118823A EP91118823A EP0484871A1 EP 0484871 A1 EP0484871 A1 EP 0484871A1 EP 91118823 A EP91118823 A EP 91118823A EP 91118823 A EP91118823 A EP 91118823A EP 0484871 A1 EP0484871 A1 EP 0484871A1
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EP
European Patent Office
Prior art keywords
group
sensitive
light
represented
sensitive material
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EP91118823A
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German (de)
English (en)
Inventor
Takashi Kadowaki
Toyoki Nishijima
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Konica Minolta Inc
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Konica Minolta Inc
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Publication of EP0484871A1 publication Critical patent/EP0484871A1/fr
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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
    • G03C1/76—Photosensitive materials characterised by the base or auxiliary layers
    • G03C1/815—Photosensitive materials characterised by the base or auxiliary layers characterised by means for filtering or absorbing ultraviolet light, e.g. optical bleaching
    • G03C1/8155—Organic compounds therefor
    • 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
    • G03C1/76—Photosensitive materials characterised by the base or auxiliary layers
    • G03C1/775—Photosensitive materials characterised by the base or auxiliary layers the base being of paper
    • G03C1/79—Macromolecular coatings or impregnations therefor, e.g. varnishes
    • 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
    • G03C7/00—Multicolour photographic processes or agents therefor; Regeneration of such processing agents; Photosensitive materials for multicolour processes
    • G03C7/30—Colour processes using colour-coupling substances; Materials therefor; Preparing or processing such materials
    • G03C7/32—Colour coupling substances
    • G03C7/3225—Combination of couplers of different kinds, e.g. yellow and magenta couplers in a same layer or in different layers of the photographic material

Definitions

  • the present invention relates to a silver halide color photographic light-sensitive material, more particularly to a silver halide color photographic light-sensitive material for printing which is high in whiteness, less coloring in aging and excellent in sharpness and color reproducibility.
  • silver halide color photographic light-sensitive materials for printing comprise a reflective support bearing thereon three types of silver halide emulsion layers subjected to spectral sensitization selectively so as to have sensitivities to blue light, green light and red light.
  • Japanese Pat. O.P.I. Pub. Nos. 71256/1990, 66234/1975 and U.S. Pat. Nos. 3,501,298, 4,794,071 disclose a technique to enhance the whiteness by adding a specific fluorescent brightener in the polyolefine resin layer on the side coated with silver halide emulsions of a double-side polyolefine-resin-coated paper support. While this method can improve the whiteness of the support, a light-sensitive material having silver halide emulsion layers formed on such a support has a defect of poor sharpness.
  • the present invention is attained as a means to solve the above problems and to provide a silver halide color photographic light-sensitive material for printing excellent in whiteness, anticoloring property with aging, sharpness and color reproducibility.
  • the first object of the invention is to provide a silver halide color photographic light-sensitive material having an excellent whiteness and causing no degradation in whiteness over a long time.
  • the second object of the invention is to provide a silver halide color photographic light-sensitive material excellent in the sharpness and color reproducibility and suitable for printing.
  • the silver halide color photographic light-sensitive material of the invention comprises a photographic layer including a blue-sensitive emulsion layer, a green-sensitive emulsion layer and a red-sensitive emulsion layer provided on a side of a reflective support which comprises a raw paper coated with a polyolefine resin on both sides, wherein the polyolefine resin layer provided on the side of the reflective support coated with photographic emulsions contains a compound represented by the following Formula 1, 2 or 3 in an amount of 0.01 to 0.2% by weight of the polyolefine resin of the polyolefine resin layer and a white pigment in an amount of 13 to 20% by weight of the polyolefine resin of the polyolefine resin layer, and the green-sensitive emulsion layer contains a compound represented by the following Formula M-1.
  • R1 and R2 each represent an alkyl group having 1 to 5 carbon atoms, a halogen or hydrogen atom, or an alkoxy group having 1 to 5 carbon atoms.
  • m and n each represent an integer of 1 to 4.
  • Z represents a group of non-metallic atoms necessary to form a nitrogen-containing heterocycle, which may have a substituent.
  • X represents a hydrogen atom or a substituent capable of splitting off upon reaction with an oxidation product of a color developing agent.
  • R represents a hydrogen atom or a substituent.
  • the raw paper used as the support in the invention may be made of materials used commonly; that is, there may be used singly or in combination natural pulps such as needle-leaf bleached sulfite pulp, broad-leaf bleached sulfite pulp, needle-leaf bleached kraft pulp and broad-leaf bleached kraft pulp.
  • a preferable blending ratio of broad-leaf pulp/needle-leaf pulp ranges from 95/5 to 60/40.
  • straw pulp, esparto pulp or bamboo pulp, or synthetic fiber if necessary may be blended in the above natural pulps.
  • the thickness of the base paper is determined according to uses, the basis weight is generally within the range from 50 to 250 g/m2.
  • the base paper be enriched its physical properties including water restance by the addition of various additives shown below.
  • sizing agents for example, a fatty acid salt of an alkylketene dimer, rosin, maleated rosin, alkenyl succinate, alkyl succinate and polysaccharide are employed in amounts of 0.2 to 2% of pulp.
  • a cationic starch As dry strength improver, there are used a cationic starch, cationic polyacrylamide, anionic polyacrylamide and carboxyl-modified polyvinyl alcohol.
  • wet strength improver there are used a melamine resin, urea resin and epoxylated polyamide resin.
  • polyvalent metallic salts such as aluminium sulfate, aluminium chloride and cationic polymers such as cationic starch are used as fixing agents.
  • Clay, talc, calcium carbonate, titanium dioxide and barium sulfate may also be contained as white pigments when necessary.
  • the pulp is subjected to tab sizing or size press sizing on its surface with a solution containing a water-soluble polymer additive.
  • a water-soluble polymer cationic starch, polyvinyl alcohol, carboxyl-modified polyvinyl alcohol, hydroxymethyl cellulose, hydroxyethyl cellulose, polyacrylamide or gelatin can be used.
  • sodium chloride or sodium sulfate as inorganic electrolytes, glycerol or polyethylene glycol as a moisture absorbent, and hydrochloric acid, sodium hydroxide or sodium carbonate as a pH conditioner; moreover, additives such as dyes, fluorescent brighteners, antistatic agents and defoamers are used in combination.
  • the pulp After being beaten to a desired degree, the pulp is made up to a pulp slurry containing the above additives according to a specific requirement, then it is formed into paper on a paper machine such as Fourdrinier paper machine, dried and subjected to super calendering. And surface sizing is performed before or after the drying.
  • the support according to the invention is prepared by coating both sides of the raw paper obtained as above with a polyolefine resin.
  • This polyolefine resin is, for example, an ⁇ -olefine homopolymer such as polyethylene or polypropylene, or a mixture of such polymers. And high density polyethylene, low density polyethylene and a mixture thereof are particularly preferred.
  • the molecular weight of these polyolefines is not particularly limited, but polyolefines having molecular weights ranging from 20,000 to 200,000 are generally used.
  • the thickness of the polyolefine resin coating layer is not particularly limited, but usually within the range from 15 to 50 ⁇ m.
  • the white pigment used in the polyolefine resin layer of the invention may be any of anatase-type and rutile-type titanium dioxide, barium sulfate, zinc oxide, calcium carbonate, aluminium oxide, magnesium oxide and talc, but titanium dioxide is particularly preferred.
  • the titanium oxide may be surface-treated with aluminium hydroxide, alcohols or surfactants, or may not be surface-treated.
  • These white pigments are used in amounts of 13 to 20%, preferably 15 to 18% by weight of the polyolefine resin of the polyolefine resin layer of a reflective support on the side coated with photographic emulsions.
  • the polyolefine resin layer of the invention contains a compound represented by Formula 1, 2 or 3, hereinafter occasionally referred to as the fluorescent brightener of the invention.
  • R1 and R2 each represent an alkyl group having 1 to 5 carbon atoms, a halogen or hydrogen atom, or an alkoxy group having 1 to 5 carbon atoms.
  • m and n each represent an integer of 1 to 4.
  • the alkyl group represented by R1 or R2 and having 1 to 5 carbon atoms is, for example, a methyl, ethyl, propyl, isopropyl, butyl, isobutyl, t-butyl, amyl or t-amyl group. And a methyl group is particularly preferred.
  • the halogen atom is preferably a chlorine atom.
  • the alkoxy group having 1 to 5 carbon atoms is preferably a methoxy, or ethoxy group. Among them, an alkyl group and a hydrogen atom are preferred. A methyl group and a hydrogen atom are particularly preferred.
  • the compound represented by Formula 1 can be synthesized by known methods as shown in U.S. Pat. No. 4,794,071 and Japanese Pat. O.P.I. Pub. No. 71256/1990 and is contained, together with a white pigment and a colored pigment, in the polyolefine resin coating layer on the side to be coated with photographic emulsions in an amount of 0.01 to 0.2% by weight of the polyolefine resin.
  • the alkyl group represented by R1 or R2 having 1 to 5 carbon atoms is, for example, a methyl, ethyl, propyl, butyl, isobutyl, t-butyl, amyl, isoamyl or t-amyl group.
  • a t-butyl group and a t-amyl groups are particularly preferred.
  • Examples of the halogen atom include a chlorine atom.
  • Examples of the alkoxy group having 1 to 5 carbon atoms include a t-buthoxy group and t-pentyloxy group. Among them, an alkyl group and a hydrogen atom are preferred; a t-butyl group, a t-amyl group and a hydrogen atom are particularly preferred.
  • the compound represented by Formula 2 can be synthesized by known methods as shown in U.S. Pat. No. 3,501,298 and is contained, together with a white pigment and a colored pigment, in the polyolefine resin coating layer on the side to be coated with photographic emulsions in an amount of 0.01 to 0.2% by weight of the polyolefine resin.
  • the alkyl group represented by R1 or R2 and having 1 to 5 carbon atoms is, for example, a methyl, ethyl, propyl, butyl or amyl group. And a methyl group is preferred.
  • An suitable example of the halogen atom is a chlorine atom.
  • Examples of the alkoxy group having 1 to 5 carbon atoms include a methoxy group and ethoxy group. Among them, an alkyl group and a hydrogen atom are preferred. A methyl group and a hydrogen atom are particularly preferred.
  • the compound represented by Formula 3 can be synthesized by known methods as shown in German Pat. Nos. 1,282,592, 1,302,052 and Japanese Pat. O.P.I. Pub. No. 66234/1975 and is contained, together with a white pigment and a colored pigment, in a polyolefine resin coating layer on the side to be coated with photographic emulsions, in an amount of 0.01 to 0.2% by weight of the polyolefine resin.
  • the polyolefine resin layer of the invention may contain a fatty acid metallic salt such as zinc stearate or magnesium stearate. Further, there may also be contained an anti-oxidant such as hindered phenol-type anti-oxidant, a coloring pigment such as ultramarine, cobalt blue or red iron oxide, and a fluorescent brightener such as bisbenzoxazole or stilbene.
  • a fatty acid metallic salt such as zinc stearate or magnesium stearate.
  • an anti-oxidant such as hindered phenol-type anti-oxidant
  • a coloring pigment such as ultramarine, cobalt blue or red iron oxide
  • a fluorescent brightener such as bisbenzoxazole or stilbene.
  • the support of the invention is prepared by extruding, from a slit die, a resin composition containing the above additives including pigments and molten at 200 to 350°C in the form of film, on a running raw paper which is subjected beforehand to surface treatment such as corona discharge.
  • the amount of a binder used in an silver halide emulsion layer and a nonlight-sensitive layer is generally 6.0 to 7.8 g/m2, preferably 6.5 to 7.5 g/m2.
  • gelatin is advantageously used as a binder or as a protective colloid
  • hydrophilic colloids such as gelatin derivatives, graft copolymers of gelatin and other polymers, proteins other than gelatin, sugar derivatives, cellulose derivatives, and hydrophilic synthetic homopolymers and copolymers.
  • usable gelatins include acid-treated gelatins and enzyme-treated gelatins described in Bulletin of Society of Science of Photography of Japan, No. 16, p. 30 (1966). Further, hydrolysis products or enzyme-catalyzed decomposition products of gelatin can also be used.
  • gelatin derivatives there are used reaction products of gelatin and compounds such as acid halides, acid anhydrides, isocyanates, bromoacetic acid, alkane sultones, vinyl sulfonamides, maleinimides, polyalkylene oxides and epoxides.
  • reaction products of gelatin and compounds such as acid halides, acid anhydrides, isocyanates, bromoacetic acid, alkane sultones, vinyl sulfonamides, maleinimides, polyalkylene oxides and epoxides.
  • Typical examples of gelatin derivatives can be seen in U.S. Pat. Nos. 2,614,928, 3,132,945, 3,186,846, 3,312,553, British Pat. Nos. 861,414, 1,033,189, 1,005,784 and Japanese Pat. Exam. Pub. No. 26845/1967.
  • Usable proteins are albumin and casein; usable cellulose derivatives are hydroxyethyl cellulose, carboxymethyl celluloser and cellulose sulfates; and usable sugar derivatives are sodium alginate and starch derivatives.
  • graft polymers between gelatin and other polymers there can be employed ones obtained by grafting on gelatin homopolymers or copolymer of vinyl monomers such as acrylic acid, methacrylic acid, deridatives of these acids including esters and amides, acrylonitrile and styrene.
  • the preferred are ones obtained by grafting polymers having a little compatibility with gelatin such as polymers of acrylic acid, acrylamide, methacrylamide or hydroxyalkyl methacrylate. Typical examples thereof are described in U.S. Pat. Nos. 2,763,625, 2,831,767 and 2,956,884.
  • Typical synthetic hydrophilic polymers usable in the invention are homo- or co-polymers such as polyvinyl alcohol, polyvinyl alcohol partial acetal, poly-N-vinylpyrrolidone, polyacrylic acid, polymethacrylic acid, polyacrylamide, polyvinylimidazole and polyvinylpyrazole. Examples thereof can be seen in German Pat. Appl. (OLS) No. 2,12,708, U.S. Pat. Nos. 3,620,751, 3,879,205 and Japanese Pat. Exam. Pub. No. 7561/1968.
  • OLS German Pat. Appl.
  • a non-light-sensitive layer containing an UV absorbent be provided on the emulsion coated side of the silver halide color photographic light-sensitive material of the invention.
  • UV absorbents are not particularly limited, the preferred are those represented by the following Formula UV-I wherein R1, R2 and R3 independently represent a hydrogen or halogen atom, or an alkyl, aryl, alkoxy, aryloxy, alkenyl, nitro or hydroxyl group.
  • the halogen atom represented by R1, R2 or R3 is a fluorine, chlorine or bromine atom, and a chlorine atom is particularly preferred.
  • the alkyl group or alkoxy group represented by R1, R2 or R3 is one having 1 to 20 carbon atoms, the alkenyl group so-represented is one having 2 to 20 carbon atoms, and each of them may be of straight chain or branched chain.
  • alkyl, alkenyl and alkoxy groups may have a substituent such as halogen atom, or aryl, cyano, heterocyclic, cycloalkyl or cycloalkenyl group, or spiro compound residue or bridged hydrocarbon residue; other examples of the substituent include ones which substitute via a carbonyl group such as acyl, carboxyl, carbamoyl, alkoxycarbamoyl and aryloxycarbamoyl groups, and ones which substitute via a hetero atom examples include ones which substitute via an oxygen atom such as hydroxyl, alkoxy, aryloxy, heterocyclic oxy, siloxy, acyloxy and carbamoyloxy groups, ones which substitute via a nitrogen atom such as nitro, amino including dialkylamino, sulfamoylamino, alkoxycarbonylamino, aryloxycarbonylamino, acylamino, sulfonamide, imido and ure
  • substituents are methyl, ethyl, isopropyl, t-butyl, sec-butyl, n-butyl, n-amyl, sec-amyl, t-amyl, ⁇ , ⁇ -dimethylbenzyl, octyloxycarbonylethyl, methoxy, ethoxy, octyloxy and allyl groups.
  • phenyl and phenyloxy groups are preferred, and these may have a substituent, e.g., alkyl or alkoxy. Typical examples thereof are phenyl, 4-t-butylphenyl and 2,4-di-t-amylphenyl groups.
  • R1 or R2 preferred ones are hydrogen atoms and alkyl, alkoxy, and aryl groups; hydrogen atoms, and alkyl and alkoxy groups are particularly preferred.
  • UV absorbent represented by Formula UV-1 is described in detail.
  • the UV absorbent represented by Foprmula UV-1 a mixture of one being liquid at ordinary temperatures and one being solid at ordinary temperatures is preferably used.
  • the melting point of the UV absorbent being liquid at ordinary temperatures is preferably less than 30°C, especially less than 15°C.
  • Such a liquid UV absorbent may be a single compound or a mixture of structural isomers.
  • the ratio of a UV absorbent being liquid at ordinary temperatures is usually more than 30%, preferably more than 30% and less than 99%, and especially more than 30% and less than 95% by weight of the total UV absorbents.
  • the ratio of a solid UV absorbent in which the total number of carbon atoms contained in groups R1 and R2 of Formula UV-1 is 8 or more, is required to be more than 35% by weight of the total solid UV absorbents. This ratio is preferably within a range from 35% to 100%, especially from 50% to 100%.
  • the UV absorbent which is solid at ordinary temperatures and may be a mixture of several UV absorbents, it is necessary that at least one of the constituent solid UV absorbents have 8 or more carbon atoms in total of groups R1 and R2 of Formula UV-1; while the upper limit thereof varies depending upon groups R1 and R2 as well as group R3, it is preferably 12 at most.
  • the total addition amount of the UV absorbent is within a range from 0.1 to 300%, preferably from 1 to 200%, and especially from 5 to 100% by weight of a binder of a non-light-sensitive layer in which the UV absorbent is contained.
  • binders used in a non-light-sensitive layer containing the UV absorbent hydrophilic binders are preferred. While gelatin, gelatin derivatives, e.g., acetylated gelatin, phthalated gelatin, albumin and collodion can be used, gelatin is preferred.
  • various methods such as an aqueous alkaline solution dispersion method, solid dispersion method, latex dispersion method and oil-in-water type emulsification method. Though a suitable method can be selected according to the chemical structure of the UV absorbent, the latex dispersion method and oil-in-water type emulsification method are particularly useful.
  • Suitable examples of the latex include homopolymers, copolymers and terpolymers of various monomers such as styrene, ethyl acrylate, n-butyl acrylate, n-butyl methacrylate, 2-acetacetoxyethyl methacrylate, ammonium 2-(methacryloyloxy)ethyltrimethyl metasulfate, sodium 3-(methacryoyloxy)propane-1-sulfonate, N-isopropyl acrylamide, N-[2-(2-methyl-4-oxopentyl)]acrylamide and 2-acrylamide-2-methylpropane sulfonic acid.
  • the oil-in-water type emulsification method can be carried out in a conventional manner which comprises a step to disperse hydrophobic additives such as couplers.
  • the UV absorbent can be incorporated in an objective layer, for example, by steps of dispersing it in a high boiling solvent having a boiling point of 175°C or more, using a low boiling solvent jointly when necessary, emulsifying the solution in a hydrophilic binder such an aqueous solution of gelatin with the aid of surfactants, and then adding the dispersion in a prescribed layer.
  • the silver halide color photographic light-sensitive material of the invention contains dye-forming couplers which form dyes in a color developing process by reacting with an oxidation product of an aromatic primary amine developing agent such as p-phenylenediamine derivatives and aminophenol derivatives.
  • said dye forming couplers are selected so as to form dyes which absorb spectral lights to which respective emulsion layers are sensitive; that is, yellow dye forming couplers are used in a blue-sensitive emulsion layer, magenta dye forming couplers in a green-sensitive emulsion layer, and cyan dye forming couplers in a red-sensitive emulsion layer.
  • combinations other than the above may also be used according to specific requirements.
  • these dye forming couplers prefferably have, in the molecule, a group having 8 or more carbon atoms, which is called ballast group and makes the coupler non-diffusible.
  • These dye forming couplers may be four-equivalent ones which requires reduction of 4 silver ions to form 1 dye molecule, or two-equivalent ones which requires reduction of only 2 silver ions to form 1 dye molecule.
  • magenta dye forming couplers compounds represented by following Formula M-I are used.
  • Z is a group of non-metallic atoms necessary to form a nitrogen-containing heterocycle, which may have a substituent.
  • X is a hydrogen atom, or a group capable of splitting off upon reaction with an oxidation product of a color developing agent.
  • R is a hydrogen atom or a substituent.
  • the substituent represented by R is not particularly limited. Typical examples thereof include alkyl, aryl, anilino, acylamino, sulfonamido, alkylthio, arylthio, alkenyl and cycloalkyl groups; other examples are halogen atoms, and cycloalkenyl, alkynyl, heterocyclic, sulfonyl, sulfinyl, phosphonyl, acyl, carbamoyl, sulfamoyl, cyano, alkoxy, aryloxy, heterocycloxy, siloxy, acyloxy, carbamoyloxy, amino, alkylamino, imido, ureido, sulfamoylamino, alkoxycarbonylamino, aryloxycarbonylamino, alkocycarbonyl, aryloxycarbonyl and heterocyclothio groups, and spiro compound residues and bridge
  • the alkyl group represented by R is preferably one having 1 to 32 carbon atoms and may be of straight chain or branched chain.
  • aryl group represented by R is a phenyl group.
  • Examples of the acylamino group represented by R include alkylcarbonylamino and arylcarbonylamino groups.
  • Examples of the sulfonamido group represented by R include alkylsulfonylamino and arylsulfonylamino groups.
  • the alkyl component and aryl component in the alkylthio group and arylthio group represented by R are the same as the alkyl group and aryl group-defined for the above R.
  • the alkenyl group represented by R is preferably one having 2 to 32 carbon atoms; the cycloalkyl group is preferably one having 3 to 12, especially 5 to 7 carbon atoms; the alkenyl group may be of straight chain or branched chain.
  • the cycloalkenyl group represented by R is preferably one having 3 to 12, especially 5 to 7 carbon atoms.
  • Examples of the sulfonyl group represented by R include alkylsulfonyl and arylsulfonyl groups.
  • sulfinyl group examples include alkylsulfinyl and arylsulfinyl groups.
  • Examples of the phosphonyl group include alkylphosphonyl, alkoxyphosphonyl, aryloxyphosphonyl and arylphosphonyl groups.
  • acyl group examples include alkylcarbonyl and arylcarbonyl groups.
  • carbamoyl group examples include alkylcarbamoyl and arylcarbamoyl groups.
  • sulfamoyl group examples include alkylsufamoyl and arylsulfamoyl groups.
  • acyloxy group examples include alkylcarbonyloxy and arylcarbonyloxy groups.
  • carbamoyloxy group examples include alkylcarbamoyloxy and arylcarbamoyloxy groups.
  • ureido group examples include alkylureido and arylureido groups.
  • sulfamoylamino group examples include alkylsulfamoylamino and arylsulfamoylamino groups.
  • the heterocyclic group is preferably a 5- to 7-membered one; examples thereof include 2-furyl, 2-thienyl, 2-pyrimidinyl and 2-benzothiazolyl groups.
  • the heterocycloxy group is preferably one having a 5-to 7-membered heterocycle; examples thereof include 3,4,5,6-tetrahydropyranyl-2-oxy and 1-phenyltetrazole-5-oxy groups.
  • the heterocyclothio group is preferably a 5- to 7-membered heterocyclothio group; examples thereof include 2-pyridylthio, 2-benzothiazolylthio and 2,4-diphenoxy-1,3,5-triazole-6-thio groups.
  • siloxy group examples include trimethylsiloxy, triethylsiloxy and dimethylbutylsiloxy groups.
  • imido group examples include succinimido, 3-heptadecyl succinimido, phthalimide and glutarimido groups.
  • Spiro compound residue examples include spiro[3,3]heptane-1-yl.
  • bridged hydrocarbon residue examples include bicyclo[2,2,1]heptane-1-yl, tricyclo[3,3,1,3,7]decane-1-yl and 7,7-dimethyl-bicyclo[2,2,1]heptane-1-yl.
  • Examples of the group represented by X and capable of splitting off by reacting with an oxidation product of a color developing agent include halogen atoms such as chlorine, bromine and fluorine atoms; alkoxy, aryloxy, heterocycloxy, acyloxy, sulfonyloxy, alkoxycarbonyloxy, aryloxycarbonyl, alkyloxalyloxy, alkylthio, arylthio, heterocyclothio, alkyloxythio carbonylthio, acylamino, sulfonamido, nitogen-containing heterocycle bonded by the N atom, alkyloxycarbonylamino, aryloxycarbonylamino and carboxyl groups, and wherein R1' is the same as the above R; Z' is the same as the above Z; R2' and R3' each represent a hydrogen atom, or an aryl, alkyl or heterocyclic group. Among them, the preferred is a halogen atom
  • Examples of the nitrogen-containing heterocycle formed by Z or Z' include pyrazole, imidazole, triazole and tetrazole rings.
  • substituent each of the above rings may have, those defined for the above R are included.
  • R1 through R8 and X are the same as the foregoing R and X respectively.
  • R1, X and Z1 are the same as R, X and Z in Formula M-I.
  • magenta couplers represented by Formulas M-II through M-VII the particularly preferred are magenta couplers represented by Formula M-II.
  • R9, R10 and R11 are the same as the foregoing R.
  • R9 and R10 -- may be linked to each other to form a saturated or unsaturated ring e.g., cycloalkane, cycloalkene or heterocycle, and further, R11 may be linked to said ring to form a bridged hydrocarbon residue.
  • R9 through R11 be alkyl groups, or that (ii) one of R9 through R11 -- for example, R11 -- be a hydrogen atom, while the other two -- namely, R9 and R10 -- be linked to form a cycloalkyl together with the root carbon atom.
  • R9 through R11 be alkyl groups and the other one be a hydrogen atom or an alkyl group.
  • the ring formed by Z of Formula M-I and the ring formed by Z1 of Formula M-VIII may have, and as the substituents represented by R2 through R8 of Formulas M-II through M-VI, ones represented by the following Formula M-X are preferred.
  • R1 is an alkylene group
  • R2 is an alkyl, cycloalkyl or aryl group.
  • the alkylene group represented by R1 is preferably one having 2 or more, especially 3 to 6 carbon atoms on the straight chain portion and may be of straight chain or branched chain.
  • the cycloalkyl group represented by R2 is preferably a 5- or 6-membered one.
  • the couplers of the invention are usually used in an amount of 1 x 10 ⁇ 3 to 1 mol, preferably 1 X 10 ⁇ 2 to 8 X 10 ⁇ 1 mol per of silver halide.
  • the couplers of the invention can be used together with other types of magenta couplers.
  • the yellow dye forming couplers used in a blue-sensitive emulsion layer of the silver halide color photographic light-sensitive material of the invention are not particularly limited, but the compounds represented by the following Formula Y-I are advantageously used.
  • R1 is an alkyl, cycloalkyl or aryl group
  • R2 is an alkyl, cycloalkyl, acyl or aryl group
  • R3 is a group capable of substituting on benzene ring
  • n is an integer of 0 or 1
  • X1 is a hydrogen atom or a substituent capable of splitting off by reaction with an oxidation product of a developing agent
  • Y1 is an organic group.
  • the yellow coupler represented by Formula Y-I is hereunder described in detail.
  • examples of the alkyl group represented by R1 include a methyl, ethyl, isopropyl, t-butyl or dodecyl group, each of which may have a substituent; examples of such a substituent are halogen atoms, and aryl, alkoxy, aryloxy, alkylsulfonyl, acylamino and hydroxyl groups.
  • Examples of the cycloalkyl group represented by R1 include cyclopropyl and cyclohexyl groups as well as organic hydrocarbon residues formed by condensation of two or more of cycloalkyls such as adamantyl group.
  • the cycloalkyl group represented by R1 may have a substituent, of which examples are those exemplified for the substituent of the alkyl group represented by R1.
  • Examples of the aryl group represented by R1 include a phenyll group; said aryl group may have a substituent.
  • Examples of said substituent include those which are exemplified as substituents for the alkyl group represented by R1 and an alkyl group. Among these groups available as R1, the preferred is a branched alkyl group.
  • examples of the alkyl, cycloalkyl and aryl groups represented by R2 are those exemplified for R1, and any of them may have a substituent among those exemplified as substituents for R1.
  • examples of the acyl group include acetyl, propionyl, butylyl, hexanoyl and benzoyl groups, said acyl group may have a substituent.
  • desirable ones are alkyl and aryl groups, more desirable ones are alkyl groups, and the most desirable ones are lower alkyl groups having carbon atoms of 5 or less.
  • the group represented by R3 and capable of substituting on benzene ring is a halogen atom, or an alkyl group, e.g., ethyl, isopropyl, t-butyl, alkoxy group, e.g., methoxy, aryloxy group, e.g., phenoxy, acyloxy group, e.g., acetyloxy, benzoyloxy, acylamino group, e.g., acetamido, benzylamino, carbamoyl group, e.g., N-methylcarbamoyl, N-phenylcarbamoyl, alkylsulfonamido group, e.g., ethylsulfonamido, arylsulfonamido, e.g., phenylsulfonamido, sulfamoyl group,
  • Y1 is an organic group and preferably one represented by the following Formula Y-II.
  • R4 is an organic group containing one interlinking group consisting of a carbonyl unit or sulfonyl unit; and p is 0 or 1.
  • Examples of the group having a carbonyl unit include ester, amido, carbamoyl, ureido and urethane groups; examples of the group having a sulfonyl unit include sulfonyl, sulfonylamino, sulfamoyl and aminosulfonylamino groups.
  • R5 is a hydrogen atom, or an alkyl, aryl or heterocyclic group.
  • Examples of the alkyl group represented by R5 include methyl, ethyl, isopropyl, t-butyl and dodecyl groups.
  • Examples of the aryl group represented by R5 include phenyl and naphthyl groups.
  • Examples of the heterocyclic group represented by R5 include pyridyl group.
  • the groups represented by R5 may have a substituent. While the substituent is not particularly limited, typical examples are halogen atoms, e.g., chlorine atom alkyl groups, e.g., ethyl, t-butyl, aryl groups, e.g., phenyl, p-methoxyphenyl, naphthyl, alkoxy groups, e.g., ethoxy, benzyloxy, aryloxy groups, e.g., phenoxy, alkylthio group, e.g., ethylthio, arylthio, e.g., phenylthio, alkylsulfonyl group, e.g., ⁇ -hydroxyethylsulfonyl, arylsulfonyl groups, e.g., phenylsulfonyl, acylamino groups, e.g., alkylcarbonyla
  • Examples of the group represented by X1 in Formula Y-I and capable of splitting off upon coupling with an oxidation product of a developing agent are those represented by the following Formula Y-III or Y-IV.
  • R6 represents an aryl or heterocyclic group which may have a substituent.
  • Z1 is a group of non-metallic atoms necessary to form a 5- or 6-membered ring in conjunction with a nitrogen atom.
  • the yellow dye forming coupler represented by Formula Y-I may form a bis-compound by interlinking at the part of R1, R3 or Y1.
  • Particularly preferred yellow couplers of the invention are those represented by the following Formula Y-V.
  • R1, R2, R3, n and J are the same as R1, R2, R3 and n in Formula Y-I and J in Formula Y-II.
  • R7 is an alkylene, arylene, alkylene-arylene or arylene-alkylene group, or -A-V1-B- in which A and B each represent an alkylene, arylene, alkylene-arylene or arylene-alkylene group; and V1 represents a divalent interlinking group.
  • R8 is an alkyl, cycloalkyl, aryl or heterocyclic group.
  • p is a bonding group having a carbonyl unit or sulfonyl unit.
  • X2 is a group capable of splitting off upon coupling with an oxidation product of a developing agent.
  • Examples of the alkylene group represented by R7, A or B of Formula Y-V include methylene, ethylene, trimethylene, butylene, hexylene, methylmethylene, methylethylene, ethylethylene, 1-methylethylene, 1-methyl-2-ethylethylene, 2-decylethylene and 3-hexylpropylene groups, which may be of straight chain or branched chain.
  • the alkylene group may have a substituent, e.g., aryl; examples thereof are 1-benzylethylene, 2-phenylethylene and 3-naphthylpropylene groups.
  • arylene group examples include phenylene and naphthylene groups, each of which may have a substituent.
  • alkylene-arylene group examples include methylene-phenylene groups; examples of the arylene-alkylene group include phenylene-methylene groups; and each of these groups may have a substituent.
  • the divalent interlinking group represented by V1 is, for example, -O- or -S- group.
  • alkylene arylene, alkylene-arylene and arylene-alkylene groups and -A-V1-B- represented by R7 respectively
  • the particularly preferred are alkylene groups.
  • the alkyl group represented by R8 includes, for example, ethyl, butyl, hexyl, octyl, 2-ethylhexyl, dodecyl, hexadecyl, 2-hexyldecyl and octadecyl groups, which may be of straight chain or branced chain.
  • the cycloalkyl group include cyclohexyl groups; examples of the aryl group include phenyl and naphthyl groups;and examples of the heterocyclic group include pyridyl groups.
  • These alkyl, cycloalkyl, aryl and heterocyclic groups represented by R8 may have a substituent.
  • the substituent is not particularly limited in types, except that organic groups containing a dissociative hydrogen atom having a pKa value of 9.5 or less, e.g., dissociative phenolic hydrogen atom, are unsuitable.
  • Preferred substituents are those exemplified as substituents for R5.
  • p is a bonding group having a carbonyl or sulfonyl unit, preferably one of the groups represented by the following Groups Y-VI-1) through Y-VI-9).
  • R and R' each represent a hydrogen atom, or an alkyl, aryl or heterocyclic group.
  • R or R' examples of the group represented by R or R' are those exemplified for the foregoing R5, and these groups may have a substituent.
  • substituents examples of the substituent are those exemplified as substituents for R5.
  • R or R1 a hydrogen atom is preferred.
  • the yellow coupler of the invention represented by Formula Y-I is used in an amount of 1 X 10 ⁇ 3 to 1 mol, preferably 1 X 10 ⁇ 2 to 8 X 10 ⁇ 1 mol per mol of silver halide.
  • cyan dye forming couplers used in a red-sensitive emulsion layer of the silver halide color photographic light-sensitive material of the invention naphthol-type couplers and phenol-type couplers are preferably used.
  • Compounds such as dye forming couplers for the silver halide color photographic light-sensitive material of the invention are usually dissolved in a high boiling organic solvent having a boiling point higher than about 160°C or in a water-insoluble polymer, using a low boiling and/or water-soluble organic solvent in combination if necessary, the solution is dispersed in a hydrophilic binder such as aqueous gelatin solution with the aid of surfactants, and then the dispersion obtained is added in an objective hydrophilic colloid layer.
  • a process to remove the low boiling solvent may be provided after or in the course of dispersing.
  • the high boiling organic solvent be a compound having a dielectric constant not more than 6.5. Suitable ones are esters such as phthalaters and phosphates, amides of organic acids, ketones and hydrocarbons each having a dielectric constant not more than 6.5. It is more desirable that the high boiling organic solvent be a compound having a dielectric constant not more than 6.5 and not less than 1.9 and a vapor pressure not more than 0.5 mmHg at 100°C. Among the solvent exemplified above, phthalates and phosphates are preferred, and dialkyl phthalates containing alkyl groups having 9 or more carbon atoms are particularly preferred. Such a high boiling organic solvent may be a mixture of two or more kinds.
  • the dielectric constant referred to in the invention is a dielectric constant at 30°C.
  • These high boiling organic solvents are used generally in an amount of 0 to 400%, preferably 10 to 100% by weight of couplers.
  • silver halide contained in a photographic light-sensitive material of the invention there may be used any of silver bromide, silver iodobromide, silver iodochloride, silver chlorobromide and silver chloride which are commonly used in silver halide emulsions.
  • silver halide grains used in the invention be a silver chlorobromide having a silver chloride content of not less than 90 mol%, a silver, bromide content of not more than 10 mol% and a silver iodide content of not more than 0.5 mol%.
  • a silver chlorobromide having a silver bromide content of 0.1 to 2 mol% is particularly preferred.
  • Said silver halide grains may be used aingly or in combination with other silver halide grains different in composition. Further, silver halide grains containing not less than 90 mol% of silver chloride can be jointly used.
  • silver halide grains having a silver chloride content of not less than 90 mol% amount to not less than 60% by weight, preferably not less than 80% by weight of the total silver halide grains contained in said emulsion layer.
  • Silver halide emulsions used in the invention may be chemically sensitized by the sulfur sensitization method, selenium sensitization method, reduction sensitizing method or precious metal sensitizing method.
  • Silver halide emulsions used in the invention may be spectrally sensitized to desired wavelength regions with dyes known as sensitizing dyes in the art.
  • the silver halide photographic light-sensitive material of the invention may contain, in its hydrophilic colloid layers such as protective layer and intermediate layers, UV absorbents, to prevent fogging caused by discharge due to frictional electrification of the light-sensitive material and to prevent deterioration in dye images caused by ultraviolet rays.
  • auxiliary layers such as a filter layer, antihalation layer and/or anti-irradiation layer.
  • auxiliary layers and/or emulsion layers may contain a dye which is washed away from the color light-sensitive material, or bleached out, in the developing process.
  • silver halide emulsion layers and/or other hydrophilic colloid layers of the silver halide light-sensitive material of the invention may be added a matting agent, for purposes of reducing the gloss of light-sensitive material, enhancing retouchability, and preventing sticking between light-sensitive materials.
  • the silver halide photographic light-sensitive material of the invention may contain a lubricant for a reduced sliding friction.
  • an antistatic agent as a preventing measure against electrification.
  • an antistatic agent may be contained in an antistatic layer provided on a support in reverse to the emulsion layer side, or in emulsion layers and/or a protective colloid layer other than emulsion layers provided on the side on which emulsion layers are formed.
  • various kinds of surfactants may be employed in order to enhance compatibility with a coating solution, antistatic property, sliding capability, emulsification and dispersion, anti-sticking property and photographic characteristics such as developing property, contrast and sensitizing property.
  • the silver halide light-sensitive materials of the invention may be coated on a support, after subjecting the support to a surface treatment such as corona discharge, ultraviolet irradiation or flame treatment, directly or via a subbing layer.
  • a surface treatment such as corona discharge, ultraviolet irradiation or flame treatment
  • the subbing layer one or two layers may be formed in order to improve adhesive property at the support's surface, antistatic property, dimensional stability, abrasion resistance, hardness, antihalation property, rubbing characteristics and/or other characteristics.
  • a thickener may be used in the emulsion to improve the coatability.
  • extrusion coating and curtain coating are particularly useful for their capability of simultaneous multilayer coating.
  • color developing agents used in color developers are conventional ones widely used in various coupler photographic processes.
  • the color developing process may be directly followed by the process with a processing solution having a bleaching capability, or said bleaching-capable processing solution may have a fixing capability concurrently, the so-called bleach-fixer.
  • a processing solution having a bleaching capability or said bleaching-capable processing solution may have a fixing capability concurrently, the so-called bleach-fixer.
  • metal complex salts of organic acids are used as bleaching agents.
  • a paper stock was prepared by mixing, in a refiner, 20% of a needle-leaf bleached sulfite pulp beated to freeness 250 ml of Canadian Standard (JIS P-8121-76) and 80% of a broad-leaf bleached kraft pulp beated to freeness 280 ml of the above standard.
  • the above paper stock containing the additives was formed into a sheet on a Fourdrinier machine, and the sheet obtained was subjected to size pressing and machine calendering to obtain a raw paper having a basis weight of 170 g/m2, a bulk density of 1.0 and a moisture content of 8%.
  • a sizing solution which was prepared by dissolving a 2:1 mixture of carboxyl-modified PVA and sodium chloride in water at a concentration of 5%, was coated on both sides of the paper sheet in a coating weight of 2.2 g/m2.
  • the raw paper prepared as above was subjected to corona discharge, and then a 35 ⁇ m-thick polyolefine resin coating layer was formed thereon by extrusion coating of high density polyethylene (specific gravity: 0.94, melt index: 6.8) containing anatase-type titanium dioxide and a fluorescent brightener in amounts shown in Table 2, on the reverse side thereof was formed a polyethylene resin coating layer by co-extrusion coating of polyethylene containing no titanium dioxide at 280°C.
  • the laminated product thus obtained was pressed against a cleaning roll having a smooth face of 20°C by applying a line pressure of 20 kg/cm, so that a support for photographic printing paper was prepared.
  • a multilayered silver halide color photographic light-sensitive material was prepared by forming the following layers on the support's polyolefine resin coating layer containing titanium dioxide and a fluorescent brightener.
  • the coating solutions used were prepared in the following procedures.
  • Coating solutions for the 2nd through 7th layers were prepared in similar manners as in the coating solution for the 1st layer.
  • H-1 was added in the 2nd and 4th layers, and H-2 was used in the 7th layer.
  • Surfactant SU-2 and SU-3 were employed as coating aids to adjust surface tension.
  • the following solutions A and B were simultaneously added over a period of 30 minutes to 1,000 ml of a 2%-aqueous gelatin maintained at 40°C, while keeping the pAg and pH at 6.5 and 3.0, respectively. Further, the following solutions C and D were simultaneously added thereto over a period of 180 minutes, while controlling the reaction liquor at pAg 7,3 and pH 5.5.
  • the pAg was controlled in the manner described in Japanese Pat. O.P.I. Pub. No. 45437/1984, and the pH was controlled with an aqueous solution of sulfuric acid or sodium hydroxide.
  • Solution A Sodium chloride 3.42 g Potassium bromide 0.03 g Water to make 200 ml Solution B ilver nitrate 10 g Water to make 200 ml Solution C Sodium chloride 102.7 g Potassium bromide 1.0 g Water to make 600 ml Solution D Silver nitrate 300 g Water to make 600 ml
  • the product was subjected to desalination using a 5%-aqueous solution of Demol N (product of Kao Atlas) and a 20% aqueous solution of magnesium sulfate, and then mixed with an aqueous gelatin.
  • the obtained was a monodispersed cubic emulsion EMP-1 having an average grain size of 0.85 ⁇ m, a distribution variation coefficient ( ⁇ / r ⁇ ) of 0.07 and a silver chloride content of 99.5 mol%.
  • the above ⁇ and r ⁇ are standard deviation of grain size distribution and average grain size of silver halide grains of the emulsion, respectively.
  • emulsion EMP-1 was subjected to chemical sensitization for 90 minutes at 50°C with the following compounds to obtain a blue-sensitive silver halide emulsion Em-B.
  • Sodium thiosulfate 0.8 mg/mol AgX Chloroauric acid 0.5 mg/mol AgX Stabilizer STAB-1 6 X 10 ⁇ 4 mol/mol AgX Sensitizing dye BS-1 4 X 10 ⁇ 4 mol/mol AgX Sensitizing dye BS-2 1 X 10 ⁇ 4 mol/mol AgX
  • EMP-2 was chemically sensitized for 120 minutes at 55°C using the following compounds to obtain a green-sensitive silver halide emulsion Em-G.
  • Sodium thiosulfate 1.5 mg/mol AgX
  • Chloroauric acid 1.0 mg/mol AgX Stabilizer STAB-1 6
  • EMP-3 was chemically sensitized for 90 minutes at 50°C using the following compounds to obtain a red-sensitive silver halide emulsion Em-R.
  • Sodium thiosulfate 1.8 mg/mol AgX Chloroauric acid 2.0 mg/mol AgX Stabilizer STAB-1 6 X 10 ⁇ 4 mol/mol AgX Sensitizing dye RS-1 1 X 10 ⁇ 4 mol/mol AgX
  • Stabilizer 5-Chloro-2-methyl-4-isothiazoline-3-one 1.0 g Ethylene glycol 1.0 g 1-Hydroxyethylidene-1,1-diphosphonic acid 2.0 g Ethylenediaminetetracetic acid 1.0 g Aqueous ammonia (20% solution) 3.0 g Fluorescent brightener (4,4'-diaminostilbenesulfonic acid derivative) 1.5 g
  • Water is added to make up to 1 liter, then the pH is adjusted to 7.0 with sulfuric acid or potassium hydroxide.
  • the expression means that the sharpness becomes larger as the value increases.
  • Supports for photographic printing paper shown in Table 5 were prepared in similar manners as in Example 1. Then, the following layers were formed, on each of the supports, on the side provided with the polyethylene coating layer containing titanium dioxide and a fluorescent brightener to obtain multilayered silver halide color photographic light-sensitive materials. Coating solutions used were prepared as follows:
  • Coating solutions for the 2nd through 7th layers were prepared in similar manners as in the coating solution for the 1st layer.
  • H-2 of Example 1 was used in each layer.
  • solutions A and B After adding the following solutions A and B to 1,000 ml of a 2.5% aqueous gelatin maintained at 58°C, solutions C and D were simultaneously added thereto over a period of 45 minutes. Ten minutes later, solutions E and F were simultaneously added over a period of 15 minutes. Further, solution G was added thereto and 10 minutes after that, solutions H and I were simultaneously added over a period of 20 minutes. Five minutes after the addition, the reaction liquor was cooled and desalted. After adding water and dispersed gelatin, the pH was adjusted to 6.2.

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EP91118823A 1990-11-07 1991-11-05 Un matériau photographique couleur à l'halogénure d'argent sensible à la lumière Withdrawn EP0484871A1 (fr)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2513622A (en) * 2013-05-01 2014-11-05 Clondalkin Group Invest Bv A laminate structure

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0266733A2 (fr) * 1986-11-05 1988-05-11 Konica Corporation Support pour éléments photographiques à réflexion
EP0283324A2 (fr) * 1987-03-20 1988-09-21 Konica Corporation Matériau photographique couleur à l'halogénure d'argent sensible à la lumière
EP0307868A2 (fr) * 1987-09-18 1989-03-22 Konica Corporation Matériau photographique à l'halogénure d'argent

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0266733A2 (fr) * 1986-11-05 1988-05-11 Konica Corporation Support pour éléments photographiques à réflexion
EP0283324A2 (fr) * 1987-03-20 1988-09-21 Konica Corporation Matériau photographique couleur à l'halogénure d'argent sensible à la lumière
EP0307868A2 (fr) * 1987-09-18 1989-03-22 Konica Corporation Matériau photographique à l'halogénure d'argent

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2513622A (en) * 2013-05-01 2014-11-05 Clondalkin Group Invest Bv A laminate structure

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