And Bleach Patents (Class 430/460)
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Patent number: 5180656Abstract: A method of processing a silver halide color photographic light-sensitive material and a bleach-fixer applicable in the method are disclosed. The method comprises a step for developing the light-sensitive material with a color developer, and a step for bleach-fixing the developed light-sensitive material with a bleach-fixer. The light-sensitive material contains at least one silver halide emulsion layer comprising silver halide grains having a silver chloride content of not less than 80 mol %; the bleach-fixer contains a ferric organic acid complex in an amount of not less than 0.2 mol per liter and silver halide fixing agent in an amount of not less than 0.7 mol per liter; and the step for treating with the bleach-fixer is performed for a time of not more than 30 seconds. Bleach-fixing process can be performed stably and rapidly without formation of reticulation and staining on edge portion of the light-sensitive.Type: GrantFiled: October 31, 1990Date of Patent: January 19, 1993Assignee: Konica CorporationInventors: Hiroaki Kobayashi, Shigeharu Koboshi, Masayuki Kurematsu, Masao Ishikawa
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Patent number: 5178993Abstract: A method for rapidly processing a silver halide color photographic material is disclosed, comprising a support having at least one red-sensitive silver halide emulsion layer containing a cyan coupler, at least one green-sensitive silver halide emulsion layer containing a magenta coupler and at least one blue-sensitive silver halide emulsion layer containing a yellow coupler, wherein the photographic material contains a yellow colored cyan coupler, the total processing time for the photographic material is 8 minutes or less, and the processing solution having a bleaching ability for the photographic material contains an oxidizing agent having a redox potential of 150 mV or more. The rapid processing method yields excellent color reproducibility and the photographic material processed by the method has excellent resistance to fading.Type: GrantFiled: February 28, 1991Date of Patent: January 12, 1993Assignee: Fuji Photo Film Co., Ltd.Inventors: Yoshihiro Fujita, Keiji Mihayashi
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Patent number: 5176988Abstract: A bleaching starter which contains an imidazole or a primary or secondary amine having a hydroxyalkyl radical as an alkaline agent which exhibits an improved desilvering function without odor and safety problems, the alkaline agent is selected from compounds represented by formulae (I) and (II): ##STR1## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are independently selected from the group consisting of a hydrogen atom, an alkyl radical, and an alkenyl radical, R.sub.5 is a hydroxyalkyl radical having up to 6 carbon atoms, and R.sub.6 is selected from group consisting of a hydrogen atom, an alkyl radical having up to 6 carbon atoms, and a hydroxyalkyl radical having up to 6 carbon atoms.Type: GrantFiled: January 30, 1992Date of Patent: January 5, 1993Assignee: Fuji Photo Film Co., Ltd.Inventors: Yoshihiro Fujita, Shigeru Nakamura
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Patent number: 5173394Abstract: A method for continuously processing an imagewise exposed silver halide color photographic material comprising a support having thereon at least one silver halide emulsion layer, comprising the steps of developing with a color developer, bleaching with a processing bath having a bleaching ability comprising a bleaching agent in a concentration of at least 0.15 mol/liter, water washing and/or stabilizing with at least two sequential processing tanks, and drying the thus processed photographic material, wherein the equilibrium iron concentration of the processing solution in the tank immediately preceding the final tank of the water washing and/or stabilizing step is from 100 to 500 ppm and the equilibrium iron concentration is at least seven times that of the processing solution in the final tank of the water washing and/or stabilizing step, and the time from the start of the bleaching step to the completion of the water washing and/or stabilizing step is not more than 65 seconds.Type: GrantFiled: July 9, 1991Date of Patent: December 22, 1992Assignee: Fuji Photo Film Co., Ltd.Inventor: Hiroshi Hayashi
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Patent number: 5169743Abstract: A method for processing a silver halide color photographic photosensitive material which comprises subjecting an imagewise exposed silver halide color photographic photosensitive material to color development process followed by bleach-fixing process and water washing and/or stabilization process. This method is characterized in that pH of the bleach-fixing solution ranges from 3.5 to 5.5 and the amount of replenished liquid for washing water and/or stabilization solution is 3 to 50 times the volume of liquid carried over from the bath preceding the water washing and/or the stabilization bath.Type: GrantFiled: May 26, 1988Date of Patent: December 8, 1992Assignee: Fuji Photo Film Co., Ltd.Inventor: Takatoshi Ishikawa
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Patent number: 5149618Abstract: The process for bleach fixing an exposed and developed color photographic material whose silver halide emulsion layers contain silver chlorobromide emulsions having a silver bromide content of from 0.3 to 2.0 mol%, in which the bleach fixing bath (1) contains, as bleaching agent, an iron(III) complex at least 50 mol% of whose complex former corresponds to the following formula ##STR1## (2) is adjusted to a pH of x where 7.0>.times.>4.5 and (3) contains a thiosulphateis distinguished by a powerful bleaching action and great environmental compatibility.Type: GrantFiled: September 20, 1991Date of Patent: September 22, 1992Assignee: Agfa Gevaert AktiengesellschaftInventors: Gustav Tappe, Ralf Wichmann, Heinz Meckl, Edgar Draber
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Patent number: 5147765Abstract: A method for processing silver halide color photographic materials is disclosed, comprising:(1) color-developing an imagewise exposing silver halide color photographic material with a primary aromatic amine based color developing agent, and then(2) desilvering said photographic material by a process comprising the following steps conducted in sequence:(a) treating in a bleaching bath,(b) treating in a bleach-fixing bath, and(c) treating in a fixing bath,wherein said bleaching bath is a bath of a bleaching solution having a pH of not more than 5.0 which contains an aminopolycarboxylic acid ferric complex salt having a redox potential of at least 150 mV, said fixing bath is a bath of a fixing solution having a pH of at least 6.Type: GrantFiled: October 31, 1990Date of Patent: September 15, 1992Assignee: Fuji Photo Film Co., Ltd.Inventors: Masatoshi Goto, Yoshihiro Fujita, Shigeru Nakamura
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Patent number: 5139929Abstract: A method for processing an exposed silver halide color photographic material comprising the steps of:(a) color developing an exposed silver halide color photographic material;(b) bleach-fixing said developed material;(c) at least one of washing said bleach-fixed material with water and stabilizing said bleach-fixed material;(d) regenerating a portion of a solution from said step (b) for bleach-fixing to form a replenisher solution comprising at least a carbonyl bisulfite adduct; and(e) replenishing at least one solution in said bleach-fixing step (b) with said replenisher solution from step (d).Type: GrantFiled: July 20, 1990Date of Patent: August 18, 1992Assignee: Fuji Photo Film Co., Ltd.Inventors: Takatoshi Ishikawa, Shinji Ueda
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Patent number: 5120635Abstract: A method for processing a silver halide photographic material which comprises processing an imagewise exposed silver halide photographic material with a processing solution having a fixing ability containing (1) a thiosulfate As disclosed, wherein said processing solution having a fixing ability further contains at least one of (2) at least one compound selected from the group consisting of a bisulfite and a sulfite, and a compound represented by formula (A'): ##STR1## wherein R'.sub.1, R'.sub.2, R'.sub.3, R'.sub.4 and R'.sub.5 each represents a hydrogen atom or a substituent other than a hydroxyl group or a group containing a hydroxyl group, provided that at least one of R'.sub.1 to R'.sub.5 is at least one of a sulfo group and a group constaining a sulfo group and (3) at least one bisulfite addition product of a compound represented by formula (A'). In the method, a fixing solution having a pH of from 5.0 to 9.Type: GrantFiled: November 15, 1990Date of Patent: June 9, 1992Assignee: Fuji Photo Film Co., Ltd.Inventors: Hirotomo Sasaki, Tetsuro Kojima, Shinji Ueda
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Patent number: 5108878Abstract: A silver halide photosensitive material after exposure can be efficiently processed in a multi-compartment apparatus comprising a series of processing compartments interconnected through narrow channels to define a continuous processing path, by passing the photosensitive material through the series of compartments along the path. Two or more processing solutions of different compositions are supplied to the path at different positions to fill the compartment with the solutions, while the solution is discharged from the path through an outlet port at an intermediate position. During a quiescent period, the solution is discharged such that the compartment which the photosensitive material first enters and the compartment from which the photosensitive material exits become empty. Operation is restarted by refilling the entrance and exit compartments with fresh solutions.Type: GrantFiled: February 6, 1991Date of Patent: April 28, 1992Assignee: Fuji Photo Film Co., Ltd.Inventor: Takashi Nakamura
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Patent number: 5104775Abstract: In a method for processing at least 2 kinds of silver halide color photographic light-sensitive materials comprising the steps of development, bleach-fixing, water washing and/or stabilization, the method comprises processing, in a common bleach-fixing bath and a common water washing or stabilization bath directly subsequent thereto, one silver halide color photographic light sensitive material having, applied to a substrate, a silver halide emulsion layer which contains, on average, not less than 3 mole % of silver iodide and another silver halide color photographic light sensitive material having applied to a substrate a silver halide emulsion layer which is substantially free of silver iodide, the water washing or stabilization bath containing at least one nonionic surfactant. The amount of replenisher for the bleach-fixing bath and the water washing or stabilizing bath is reduced to not more than 400 ml/m.sup.2 for color paper or not more than 800 m1/m.sup.2 for color negative film.Type: GrantFiled: September 4, 1991Date of Patent: April 14, 1992Assignee: Fuji Photo Film Co., Ltd.Inventors: Akira Abe, Shinji Ueda, Toshihiro Nishikawa
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Patent number: 5102778Abstract: A method for processing a silver halide light-sensitive material comprising subjecting an imagewise exposed silver halide color light-sensitive material having a silver chloride content substantially of 90 mol % or more to color developement in a color developing solution containing a hydrophilic p-phenylenediamine derivative and substantially no benzyl alcohol at a temperature of 30.degree. C. or higher for a period of 15 seconds or less and then subjecting the color developed material to bleach or bleach-fix, wherein the color development processed silver halide color light-sensitive material is introduced into a bleaching or bleach-fix bath with the amount of a color developing agent in the film of the light-sensitive material being controlled to 0.8 mmol/m.sup.2 or less, and wherein the desilvering is completed within 30 seconds.Type: GrantFiled: November 9, 1990Date of Patent: April 7, 1992Assignee: Fuji Photo Film Co., Ltd.Inventor: Koichi Nakamura
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Patent number: 5093228Abstract: A method for processing a silver halide color photographic material is disclosed, comprising the step of:(a) developing an imagewise exposed silver halide color photographic material,(b) processing the developed silver halide color photographic material with a bath having a bleaching ability, and(c) processing the bleached silver halide color photographic material with a bath having a fixing ability, wherein said bath having a bleaching ability comprises 0.2 mol/liter or more of a (1,3-diaminopropanetetraacetato)iron (III) complex salt and has a pH of from 2.5 to 5.5, and said bath having a fixing ability comprises at least one aminopolycarboxylic acid and an organic phosphonic acid.Type: GrantFiled: August 4, 1989Date of Patent: March 3, 1992Assignee: Fuji Photo Film Co., Ltd.Inventor: Shigeru Nakamura
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Patent number: 5075202Abstract: A method of processing a light-sensitive silver halide color photographic material which comprises subjecting to imagewise exposure a light-sensitive silver halide color photographic material having a light-sensitive silver halide emulsion layer on i) a substrate coated with a resin cured by irradiation with electron beams or ii) one side or both sides of a substrate of an opaque thermoplastic resin film comprising a synthetic polyester film coated on its one side or both sides with fine particles of white pigment and/or a synthetic polyester film containing said fine particles dispersed in the film and applied with molecular orientation, followed by color developing processing and, after processing by use of processing solution having fixing ability, stabilizing processing without substantially any water washing step. The concentration of silver complex ions in the final stabilizing tank is in the range of 2.times.10.sup.-5 to 2.times.10.sup.-1 mole/liter.Type: GrantFiled: September 10, 1990Date of Patent: December 24, 1991Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: Shigeharu Koboshi, Kazuhiro Kobayashi, Satoru Kuse
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Patent number: 5070004Abstract: A bleaching starter which contains an imidazole or a primary or secondary amine having a hydroxyalkyl radical as an alkaline agent exhibits an improved desilvering function without odor and safety problems.Type: GrantFiled: December 20, 1990Date of Patent: December 3, 1991Assignee: Fuji Photo Film Co., Ltd.Inventors: Yoshihiro Fujita, Shigeru Nakamura
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Patent number: 5068170Abstract: A method for processing an imagewise exposed silver halide color photographic material for photography which comprises the steps of:color-developing a silver halide color photographic material with a color developing solution,processing said developed silver halide color photographic material with a bleaching solution, and thenprocessing said bleached silver halide color photographic material with a processing solution having a fixing ability, wherein the replenishment rate of said color developing solution is 600 ml or less per m.sup.2 of the photographic material; said bleaching solution contains a bleaching agent having an oxidation reduction potential of 150 mV or more and further an organic acid having a pKa of from 2 to 5.0, provided that an aminopolycarboxylic acid or a salt thereof and an iron complex salt of the aminopolycarboxylic acid are excluded, in an amount of 1.2 mol or more per liter of the bleaching solution; said bleaching solution has a pH value of 3.0 to 5.Type: GrantFiled: August 9, 1990Date of Patent: November 26, 1991Assignee: Fuji Photo Film Co., Ltd.Inventor: Akira Abe
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Patent number: 5066570Abstract: A processing tank is partitioned into a plurality of compartments which are serially connected to define a continuous processing path having an entrance and an exit for photosensitive material. The path is filled with a processing solution having a desilvering function such that the processing solution in at least one compartment has a different composition from the processing solution in at least one of the remaining compartments. Silver halide photosensitive material is successively passed through the compartments without contact with the ambient air. Desilvering the photosensitive material after exposure and development in this way reduces the amount of processing solution used, especially replenished, while achieving improved photographic properties.Type: GrantFiled: October 22, 1990Date of Patent: November 19, 1991Assignee: Fuji Photo Film Co., Ltd.Inventors: Takashi Nakamura, Toshio Kurokawa
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Patent number: 5063143Abstract: A process for forming a color image wherein a color photographic material is developed with a processing solution containing a solvent for the silver halide in the presence of an aromatic primary amino color devloping agent. The color photographic material comprises, on a support, at least one layer containing (1) a coupler capable of forming a dye by reaction with an oxidized aromatic primary amino color developing agent and having a dye covering power of at least 0.75 and (2) a silver chlorobromide emulsion or silver chlorobromide emulsion containing at least 90 molar % of silver chloride.Type: GrantFiled: April 9, 1990Date of Patent: November 5, 1991Assignee: Fuji Photo Film Co., Ltd.Inventors: Takeshi Hirose, Akira Abe, Kiyoshi Nakazyo
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Patent number: 5063142Abstract: A process for processing a silver halide color photographic material is disclosed, which comprises color developing and bleach-fixing the silver halide color photographic material, and then processing by at least one of washing the material with water and stabilizing the material, the silver halide color photographic material comprising a support having thereon at least one emulsion layer comprising a high silver chloride emulsion having a silver chloride content of 80 mol % or more and a used bleach-fixing solution which has been already used for the bleach-fixing, having a silver ion concentration of 0.02 mol/liter or more being used as a bleach-fixing solution for replenishment.Type: GrantFiled: May 21, 1990Date of Patent: November 5, 1991Assignee: Fuji Photo Film Co., Ltd.Inventor: Takatoshi Ishikawa
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Patent number: 5055382Abstract: A three-part bleach-fix regeneration kit is utilized to restore the capability of a spent bleach-fix solution to function as a working solution in photographic processing. The first part, which is an aqueous alkaline solution containing a buffering agent and an aminopolycarboxylic acid, is added to the spent bleach-fix solution prior to electrolytic recovery of silver therefrom. The second and third parts, which are aqueous acidic solutions containing, respectively, an iron salt and a thiosulfate fixing agent, are added after electrolytic recovery of silver. The first part functions to increase the pH of the spent bleach-fix solution to a level at which electrolytic silver recovery is optimized, while the second and third parts function to lower the pH to an optimum level for use in photographic processing. In addition to providing the necessary pH changes, addition of the three parts in this manner restores all necessary components to their proper concentration.Type: GrantFiled: February 1, 1989Date of Patent: October 8, 1991Inventors: John J. Long, Susan R. Krauss, Thomas P. Cribbs, III
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Patent number: 5055384Abstract: A granulated photographic fixative or bleach fixative composed of grains containing both a thiosulphate and a disulphite is mechanically stable, dust free and freely pourable, will keep indefinitely and is distinguished by its great speed of solution.Type: GrantFiled: June 13, 1990Date of Patent: October 8, 1991Assignee: Agfa Gevaert AktiengesellschaftInventor: Peter Kuhnert
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Patent number: 5043253Abstract: In a method for processing at least 2 kinds of silver halide color photographic light-sensitive materials comprising the steps of development, desilvering, water washing and/or stabilization, the method comprises processing, in a common desilvering bath, one silver halide color photographic light sensitive material having, applied to a substrate, a silver halide emulsion layer which contains, on average, not less than 3 mole % of silver iodide and another silver halide color photographic light sensitive material having, applied to a substrate, a silver halide emulsion layer which is substantially free of silver iodide, the desilvering bath containing a processing solution having bleaching ability which contains at least one stilbene type fluorescent brightener and a processing solution having fixing ability which contains iodide ions ranging from 1.times.10.sup.-4 to 1.times.10.sup.-1 mole/l.Type: GrantFiled: December 9, 1988Date of Patent: August 27, 1991Assignee: Fuji Photo Film Co., Ltd.Inventor: Takatoshi Ishikawa
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Patent number: 5011763Abstract: A method for processing a silver halide color photographic material is disclosed, comprising after development, bleaching or bleach-fixing an imagewise exposed silver halide color photographic material in the presence of at least one compound represented by formula (I): ##STR1## wherein R.sup.1 and R.sup.2, which may be the same or different, each represents a hydrogen atom or an alkyl group, or R.sup.1 and R.sup.2 may combine with each other to form a heterocyclic ring; A.sup.1 and A.sup.2, which may be the same or different, each represents an alkylene group having from 2 to 5 carbon atoms which may be substituted; and n represents an integer from 2 to 6.In accordance with the method of the present invention, as a result of accelerated bleaching function, the processing time is shortened while sufficient bleaching is performed, thus providing color photographic images of excellent image quality.Type: GrantFiled: October 27, 1988Date of Patent: April 30, 1991Assignee: Fuji Photo Film Co., Ltd.Inventors: Kiyoshi Morimoto, Yoshihiro Fujita
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Patent number: 5009985Abstract: Iron(III)-complexes of compounds of the formula ##STR1## wherein R.sub.1 denotes a substituent,m denotes 1 or 2 andn denotes 0, 1 or 2are valuable and biodegradable bleaching agents for photographic elements.Type: GrantFiled: August 22, 1990Date of Patent: April 23, 1991Assignee: Agfa-Gevaert AktiengesellschaftInventors: Friedrich-Wilhelm Kunitz, Ralf Wichmann
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Patent number: 5002860Abstract: A novel process for processing a silver halide color photographic material is disclosed, which comprises color-developing a silver halide color photographic material which has been imagewise exposed to light, and then processing the silver halide color photographic material with a processing solution having a bleaching ability, wherein the silver halide color photographic material comprises at least one magenta coupler represented by formula (M-1) and the processing solution having a bleaching ability comprises as a bleaching agent (1) at least one of ferric complex salts of compounds selected from Compound Group (A) and (2) a ferric 1,3-diaminopropanetetraacetate complex salt in a molar proportion of the (1) to the (2) of 3 or less:Compound Group (A)A-1: Ethylenediaminetetraacetic acidA-2: Diethylenetriaminepentaacetic acidA-3: Cyclohexanediaminetetraacetic acidA-4: 1,2-Propylenediaminetetraacetic acid ##STR1## wherein Za and Zb each represents --CH.dbd., ##STR2## or .dbd.N--; R.sub.1 and R.sub.Type: GrantFiled: February 21, 1989Date of Patent: March 26, 1991Assignee: Fuji Photo Film Co., Ltd.Inventors: Takatoshi Ishikawa, Toshio Kawagishi
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Patent number: 4987058Abstract: A processing method without washing gives good photographic properties, without a precipitate being deposited in the stabilizing bath, when the bleach-fixing bath contains a compound of the formulaFe(X).sub.2 DTPA,whereinX denotes alkali or ammonium,as bleaching agent, and the stabilizing bath contains a fungicide, HEDP and a hexametaphosphate.Type: GrantFiled: June 13, 1990Date of Patent: January 22, 1991Assignee: Agfa-Gevaert AktiengesellschaftInventors: Erika Spriewald, Gustav Tappe, Heinz Meckl
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Patent number: 4985347Abstract: A method for processing silver halide color photographic material is disclosed which comprises processing a silver halide color photographic material with a color developer containing substantially no sulfite ion and then processing the color photographic material with a solution having bleaching capability containing an aminopolycarboxylic acid having a molecular weight of at least 300.Type: GrantFiled: July 25, 1990Date of Patent: January 15, 1991Assignee: Fuji Photo Film Co., Ltd.Inventors: Hiroshi Fujimoto, Morio Yagihara, Takatoshi Ishikawa
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Patent number: 4983503Abstract: There are disclosed a method for processing a light-sensitive silver halide color photographic material by subjecting a light-sensitive silver halide color photographic material after color developing to bleach-fixing processing, characterized in that the light-sensitive silver halide color photographic material contains at least one cyan coupler represented by the formula (A), (B) or (C) as specified in the specification, or contains at least one magenta coupler represented by the formula (M-1), the bleach-fixing processing step is a step which is a counter-current system uses two or more tanks of continuous bleach-fixing tanks, and the silver concentration in the bleach-fixing solution in a final tank of the bleach-fixing tanks is maintained at 80% or lower of the silver concentration in a bleach-fixing solution in a first tank, and a method for processing a light-sensitive silver halide color photographic material by subjecting a light-sensitive silver halide color photographic material after color developType: GrantFiled: February 26, 1990Date of Patent: January 8, 1991Assignee: Konica CorporationInventors: Masao Ishikawa, Shigeharu Koboshi, Satoru Kuse, Masayuki Kurematsu
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Patent number: 4966834Abstract: A method of processing a silver halide color photographic material by the steps of (a) developing an imagewise exposed silver halide color photographic material with a color developing solution substantially free from sulfite ions; and (b) immediately contacting the developed silver halide color photographic material with a bleach-fixing solution containing at least one of (i) from 1.times.10.sup.-2 mol to 2 mol of bromide ions and (ii) from 5.times.10.sup.-4 mol to 5.times.10.sup.-2 mol of iodide ions per liter.In accordance with the method of the invention, silver removal is fully accomplished and the formation of leuco dye is prevented even in rapid processing. Further, the formation of color stain is also prevented.Type: GrantFiled: September 1, 1988Date of Patent: October 30, 1990Assignee: Fuji Photo Film Co., Ltd.Inventors: Takatoshi Ishikawa, Shinji Ueda
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Patent number: 4966835Abstract: A method for processing a silver halide color photographic material is described, comprising a support having thereon at least one of a silver halide emulsion layer and other hydrophilic colloid layer, wherein the silver halide emulsion layer or other hydrophilic colloid layer contains at least one compound represented by formula (I):A--B (I)wherein A represents a blocking group capable of being cleaved from B during processing and B represents a bleach accelerating agent containing at least one hetero atom linked to A through the hetero atom, wherein said method comprises at least one color developing step and desilvering step comprising a bleach-fixing treatment.Type: GrantFiled: August 12, 1988Date of Patent: October 30, 1990Assignee: Fuji Photo Film Co., Ltd.Inventors: Tetunori Matushita, Morio Yagihara, Kei Sakanoue
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Patent number: 4963475Abstract: A method of processing an imagewise exposed light-sensitive silver halide photographic material. The material contains a silver halide emulsion layer containing silver halide grains which are sensitized with a monomethine dye. The material is processed with a developer solution containing an aromatic primary amine color developing agent in the presence of at least one hydroxylamine derivative and at least one nitrogen containing heterocyclic mercapto compound.Type: GrantFiled: March 28, 1989Date of Patent: October 16, 1990Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: Kazuhiro Murai, Keiji Ohbayashi, Kaoru Onodera
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Patent number: 4963459Abstract: The present invention provides a method of registering to an imaging web moving within an imaging web handling apparatus along an imaging web path. The imaging web comprises a support having a coating of photosensitive microcapsules on the surface thereof. The photosensitive microcapsules have an internal phase of a photosensitive composition and a color former. Exposure of the imaging web to actinic radiation defines an image area and a border area.A registration mark is formed on the web by exposing a portion of the web area to actinic radiation so that the portion undergoes a color or reflection change, or exposing all but a portion of the border area to actinic radiation so that the exposed area undergoes a color or reflection change. The registration mark is detected and in response to detection of the registration mark, an operation is performed on the imaging web.Type: GrantFiled: August 25, 1989Date of Patent: October 16, 1990Assignee: The Mead CorporationInventors: Jack Beery, David A. Boyer
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Patent number: 4962014Abstract: A process for processing a silver halide color photographic material after imagewise exposing said silver halide color photographic material, comprising color developing, blixing, and then washing, wherein the processing time for said blixing is from about 30 seconds to about 70 seconds, the blixing liquid for said blixing contains from about 0.08 to about 0.30 mol/liter of sulfite ion, and the replenishing amount of washing water for said washing is from about 3 times to about 50 times the amount of processing liquid carried from the previous bath per unit area of said color photographic material.Type: GrantFiled: January 19, 1989Date of Patent: October 9, 1990Assignee: Fuji Photo Film Co., Ltd.Inventors: Takatoshi Ishikawa, Junya Nakajima
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Patent number: 4960682Abstract: Improved photographic bleaching compositions for use in the color processing of photographic elements comprise an aqueous solution containing a photographic bleaching agent, such as, for example, an ammonium or alkali metal salt of a ferric complex of an aminopolycarboxylic acid, and a dye-stabilizing amount of a formaldehyde percursor.Type: GrantFiled: December 19, 1988Date of Patent: October 2, 1990Assignee: Eastman Kodak CompanyInventors: Ann M. Cullinan, Paul A. Schwartz
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Patent number: 4956268Abstract: A two-part bleach-fixing solution composition comprising of a first concentrate composition containing a reducing compound comprising a silver halide solvent and a preservative as main components; and a second concentrate composition having a pH of 1.5 or less, containing an oxidizing compound comprising a bleaching agent and an acid as main components.The invention also relates to a method for processing a silver halide color photographic material by the steps of:(a) developing an exposed silver halide color photographic material comprising a support having thereon at least one red-sensitive silver halide emulsion layer containing at least one coupler represented by formula (I) or (II); at least one green-sensitive silver halide emulsion layer containing at least one coupler represented by formula (III) or (IV); and at least one blue-sensitive silver halide emulsion layer containing a yellow coupler represented by formula (V): ##STR1## wherein R.sub.1, R.sub.2 and R.sub.Type: GrantFiled: April 26, 1989Date of Patent: September 11, 1990Assignee: Fuji Photo Film Co., Ltd.Inventors: Kiyoshi Nakazyo, Takatoshi Ishikawa, Yoshikazu Fujita
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Patent number: 4954426Abstract: A method for processing a silver halide color photographic light-sensitive material comprises color developing the light-sensitive material and then subjecting it to bleach-fixing treatment, the amount of bleach-fixing solution replenished being 0.2 to 15 times the volume of the color developer carried over, to the bleach-fixing bath, by the processed light-sensitive material per unit area thereof and not less than 80 mole % of the total non-metallic cations present in the replenisher for the bleach-fixing solution being ammonium ions. This method makes it possible to substantially reduce the magenta stains formed after processing due to the magenta couplers used.Type: GrantFiled: April 28, 1988Date of Patent: September 4, 1990Assignee: Fuji Photo Film Co., Ltd.Inventor: Takatoshi Ishikawa
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Patent number: 4939075Abstract: In the case of color materials with the usual processing times, bleaching and bleaching/fixing baths containing an iron(III) ion complex salt as bleach and, in addition, a 5- to 7-membered heterocyclic compound containing at least one N-atom and at least one other hetero atom from the group consisting of O,S,N which is substituted by --S.sup..crclbar. and, at a quaternary ring nitrogen atom, carries a positive charge arranged in such a way that no tautomeric charge compensation to a neutral thione form is possible, provide for good bleaching, i.e. for black areas free from residual silver in the case of color negative materials and for low minimum densities in the case of color reversal materials, by virtue of their excellent bleaching rate and, at the same time, their high stability.Type: GrantFiled: December 9, 1988Date of Patent: July 3, 1990Assignee: Agfa-Gevaert AktiengesellschaftInventors: Peter Bergthaller, Helmut Haseler, Heinz Meckl
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Patent number: 4933266Abstract: Bleaching and bleach-fixing solutions, especially useful in the processing of a photographic color material, contain a bleaching agent comprising a ferric complex of propylenediaminetetraacetic acid and a hydroxy-substituted chelating agent present in an amount sufficient to reduce the formation of ferric propylenediaminetetraacetic acid precipitates. The solutions do not generate unacceptable stain or adversely affect leuco cyan dye recovery or process cleanliness.Type: GrantFiled: March 1, 1988Date of Patent: June 12, 1990Assignee: Eastman Kodak CompanyInventors: Keith H. Stephen, Carol J. MacDonald
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Patent number: 4933264Abstract: In a process for the processing of color photographic silver halide material which has been exposed to form an image by development, bleachfixing, washing or stabilization and drying, the aqueous developer solution being free from benzyl alcohol, the pH value of the bleachfixing solution, which contains an iron(III) complex salt, being below 7 and the bleachfixing solution containing a compound corresponding to general formula (I) ##STR1## in which Z represents the atoms required to complete an optionally further substituted heterocyclic ring andR.sup.1 represents hydrogen or an alkali atom,and a coupler containing an activated methylene group, in which a hydrogen atom is replaced by alkyl, cycloalkyl, aryl or aralkyl and reacts with the oxidation product of the color developer to form colorless reaction products, bleaching can be carried out free from residual silver with a low regeneration level of the bleachfixing bath without any water-insoluble precipitates being formed.Type: GrantFiled: August 18, 1989Date of Patent: June 12, 1990Assignee: Agfa-Gevaert AktiengesellschaftInventors: Helmut Haseler, Heinz Meckl, Gustav Tappe
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Patent number: 4923785Abstract: The one-part aqueous bleaching bath concentrate containing an ammonium iron (III) complex salt concentration of at least 0.4 mol per liter, an ammonium bromide concentration of from 1.5 to 3 mol per liter, an ammonium nitrate concentration of from 0.25 to 1 mol per liter and a pH below 3 is stable in storage.Type: GrantFiled: July 5, 1988Date of Patent: May 8, 1990Assignee: AGFA Gevaert AGInventor: Karl Frank
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Patent number: 4923782Abstract: A stabilizing bath which provides reduced stain and enhanced dye stability for photographic color elements which are processed therein is comprised of a dye stabilizing agent, an alkanolamine, and a hydrolyzed polymaleic anhydride or water-soluble salt thereof. The stabilizing bath is used as a final processing bath which follows treatment of the element in a fixing or bleach-fixing bath containing a thiosulfate fixing agent. The alkanolamine functions to prevent the precipitation of sulfur resulting from carryover of the thiosulfate fixing agent into the stabilizing bath, while the hydrolyzed polymaleic anhydride or water-soluble salt thereof functions to avoid the formation of unwanted precipitates.Type: GrantFiled: June 3, 1988Date of Patent: May 8, 1990Assignee: Eastman Kodak CompanyInventor: Paul A. Schwartz
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Patent number: 4923784Abstract: Silver halide photographic elements are described containing, as a bleach accelerator precursor, a silver salt of an acid-containing, non-zwitterionic, organic thiol. The bleach accelerators are operable with a multiplicity of bleach compositions and help in reducing sensitizing dye stain.Type: GrantFiled: November 14, 1988Date of Patent: May 8, 1990Assignee: Eastman Kodak CompanyInventors: John W. Harder, Stephen P. Singer
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Patent number: 4921779Abstract: Improved bleach-accelerating compositions that are especially useful in the reversal color processing of photographic elements are comprised of a bleach-accelerating agent and a dye-stabilizing agent. Formaldehyde precursors function as particularly effective dye-stabilizing agents in such compositions. The bleach-accelerating composition is utilized subsequent to the color developing step and prior to the bleaching step and serves to enhance the effectiveness of the bleaching step and to provide improved dye stability.Type: GrantFiled: December 19, 1988Date of Patent: May 1, 1990Assignee: Eastman Kodak CompanyInventors: Ann M. Cullinan, Paul A. Schwartz
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Patent number: 4914008Abstract: There is disclosed a processing method of a light-sensitive silver halide color photographic material comprising, in a method of processing a light-sensitive silver halide color photographic material with a bleach-fixing solution after color developing, and successively with a stabilizing solution substituted for water washing, said bleach-fixing solution contains as main components an organic acid ferric complex salt with which a molecular weight of a free acid being not more than 280, a thiosulfate and a sulfite, and a processing time by said stabilizing solution substituted for water washing is 2 minutes or shorter.Type: GrantFiled: December 8, 1988Date of Patent: April 3, 1990Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: Masayuki Kurematsu, Shigeharu Koboshi
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Patent number: 4910125Abstract: A method of processing an exposed silver halide color photographic material is described, comprising the steps of:(1) color developing the material, and then(2) bleaching or bleach-fixing the material using a processing solution, wherein the processing solution has a bleaching capability and contains at least ferric complex salt of an organic chelating compound represented by formula (X): ##STR1## wherein Y represents ##STR2## l, m and n each represents an integer of from 1 to 3 which may be the same or different; and r represents a hydrogen atom or a substituted or unsubstituted alkyl group having from 1 to 4 carbon atoms.Type: GrantFiled: October 4, 1988Date of Patent: March 20, 1990Assignee: Fuji Photo Film Co., Ltd.Inventors: Taku Haruuchi, Shinji Ueda
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Patent number: 4908300Abstract: A method of a processing of a silver halide color photographic material is disclosed. The process comprises a step of developing the exposed color photographic material and a step of treating the developed color photographic material with a bleach-fixing solution. The bleach-fixing solution contains an organic acid ferric complex. At least one layer of the emulsion layers of the photographic material contains silver halide grains containing from 0.5 to 25 mol % of silver iodide. The total dry-thickness of the photographic component layers contained in the photographic material is from 8 to 25 .mu.m and the swelling rate T1/2 of the photographic component layers is not more than 25 sec. The method is suitable for rapid processing of the fine grain-type high-speed silver iodide-containing color photographic material. The method uses a bleach-fixing bath enabling the rapid processing of the high-speed color photographic material.Type: GrantFiled: October 14, 1988Date of Patent: March 13, 1990Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: Shigeharu Koboshi, Moeko Higuchi, Shinji Kadota
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Patent number: 4894320Abstract: A method of processing an imagewise exposed silver halide color photographic material comprising developing the material with a color developing solution, and then processing the material with a solution having a bleaching ability, wherein the processing solution having a bleaching ability contains a ferric complex salt comprising, as a complexing agent, an aromatic compound having at least one group represented by the following general formula (I): ##STR1## wherein X represents a hydrogen atom or an organic or inorganic cation, A represents a single bond or a divalent linking group, and R represents a hydrogen atom, an aliphatic group, an aromatic group, a heterocyclic ring group, an acyl group, a sulfonyl group, A or --CH.sub.2 PO.sub.3 X.sub.2.Type: GrantFiled: September 25, 1987Date of Patent: January 16, 1990Assignee: Fuji Photo Film Co., Ltd.Inventors: Shinji Ueda, Masakazu Morigaki, Kozo Aoki
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Patent number: 4876180Abstract: A method of processing a silver halide-containing photosenstitive material for color photography includes the silver-removing step in which silver which is formed by reduction in the color developing step is oxidized by a bleaching agent and further changed into a soluble silver complex by the action of a fixing agent. In this process, bleaching is carried out in both a bleaching bath and a bleach-fixing bath, and fixing is effected in the bleach-fixing bath. In the bleach-fixing bath, a stream of bleach-fixing solution is brought into contact with the emulsion coating surface of the color photosensitive material at a higher flow velocity than that of a stream of bleach-fixing solution which is circulated in the bath.Type: GrantFiled: July 12, 1988Date of Patent: October 24, 1989Assignee: Fuji Photo Film Co., Ltd.Inventors: Akira Abe, Junya Nakajima, Haruo Takase, Kazushige Uenaka, Ruyzi Otomo
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Patent number: 4865956Abstract: Silver halide photographic elements are described containing, as a bleach accelerator precursor, a silver salt of a solubilized, non-primary amino thiol. The bleach accelerators are operable with a multiplicity of bleach compositions and do not deleteriously affect the sensitometric properties of the photographic element.Type: GrantFiled: November 14, 1988Date of Patent: September 12, 1989Assignee: Eastman Kodak CompanyInventors: John W. Harder, Stephen P. Singer
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Patent number: 4857441Abstract: A method of processing a silver halide-containing photosensitive material for color photography includes the silver-removing step in which silver which is formed by reduction in the color developing step is oxidized by a bleaching agent and further changed into a soluble silver complex by the action of a fixing agent. In this process, bleaching is carried out in both a bleaching bath and a bleach-fixing bath, and fixing is effected in the bleach-fixing bath. In the bleach-fixing bath, a stream of bleach-fixing solution is brought into contact with the emulsion coating surface of the color photosensitive material at a higher flow velocity than that of a stream of bleach-fixing solution which is circulated in the bath.Type: GrantFiled: February 9, 1987Date of Patent: August 15, 1989Assignee: Fuji Photo Film Co., Ltd.Inventors: Akira Abe, Junya Nakajima, Haruo Takase, Kazushige Uenaka, Ruyzi Otomo