Containing Additive Patents (Class 430/429)
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Patent number: 5633124Abstract: This invention provides a process for removal of silver halide from a silver halide photographic recording material by a processing solution with fixing ability (a fixer) containing thiosulfate as a fixing agent conducted in the presence of a thioether compound incorporated within a fixer formulation. It further provides a fixer formulation for use in said process. The fixer contains a maximum ammonium ion concentration of 0.9M.Type: GrantFiled: October 20, 1994Date of Patent: May 27, 1997Assignee: Eastman Kodak CompanyInventors: Eric R. Schmittou, Jacob J. Hastreiter, Jr., Stuart T. Gordon
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Patent number: 5578432Abstract: A stabilizing bath that provides image stability and uniform drainage of excess fluid to prevent drying spots and that reduces or eliminates the formation of residue on the base side of color negative films is comprised of hexamethylenetetramine, a nonionic polyethoxylated surfactant, and an anionic sulfate or sulfonate surfactant. The stabilizing bath is used as the final processing bath prior to drying. The nonionic surfactant provides uniform drainage of excess fluid and the anionic sulfate or sulfonate surfactant functions to reduce or eliminate the formation of residue on the base side of color negative films.Type: GrantFiled: March 21, 1996Date of Patent: November 26, 1996Assignee: Eastman Kodak CompanyInventors: Hugh G. McGuckin, John S. Badger, Michael W. Orem
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Patent number: 5576151Abstract: A processing solution for a silver halide color photographic material, said solution containing at least one kind of compound represented by formula (I) or (III): ##STR1##Type: GrantFiled: April 21, 1995Date of Patent: November 19, 1996Assignee: Fuji Photo Film Co., Ltd.Inventors: Masakazu Morigaki, Hiroshi Kawamoto, Shigeru Nakamura
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Patent number: 5552264Abstract: A conditioning or bleach accelerating solution can be used to process color photographic films, especially color reversal films, to minimize magenta dye fade while reducing the needed amount of formaldehyde stabilizer. This solution is provided in highly concentrated form and diluted up to 9:1 prior to or during use. The concentrate contains a formaldehyde precursor at 200 to 450 g/l, a sulfite at from 40 to 100 g/l, a bleach accelerating agent at 1.5 to 13.5, and a metal ion chelating agent at 5 to 45 g/l.Type: GrantFiled: April 5, 1995Date of Patent: September 3, 1996Assignee: Eastman Kodak CompanyInventors: Ann M. Cullinan, Charles M. Darmon, Rosa P. Sauter, Charles F. Leith
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Patent number: 5534396Abstract: A photographic rinse composition has been developed which reduces jamming in the processing of photographic print materials and prevents biological growth on and leaching of materials from the print materials. This composition includes a vinyl pyrrolidone polymer, at least about 0.02 g/l of a biocide mixture comprising 5-chloro-2-methyl-4-isothiazolin-3-one and 2-methyl-4-isothiazolin-3-one, and at least about 0.02 g/l of an alkyl ether sulfate surfactant. Cupric ion can also be included to stabilize the biocide mixture.Type: GrantFiled: November 9, 1994Date of Patent: July 9, 1996Assignee: Eastman Kodak CompanyInventors: Hugh G. McGuckin, Jerel R. Carli, John S. Badger, Stephen J. Waffle
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Patent number: 5529890Abstract: A stabilizing bath that provides image stability and uniform drainage of excess fluid to prevent drying spots and that reduces or eliminates the formation of residue on the base side of color negative films is comprised of hexamethylenetetramine, a nonionic polyethoxylated surfactant, and an anionic sulfate or sulfonate surfactant. The stabilizing bath is used as the final processing bath prior to drying. The nonionic surfactant provides uniform drainage of excess fluid and the anionic sulfate or sulfonate surfactant functions to reduce or eliminate the formation of residue on the base side of color negative films.Type: GrantFiled: March 28, 1995Date of Patent: June 25, 1996Assignee: Eastman Kodak CompanyInventors: Hugh G. McGuckin, John S. Badger, Michael W. Orem
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Patent number: 5523195Abstract: A conditioning or bleach accelerating solution can be used to process color photographic films, especially color reversal films, to minimize magenta dye fade while reducing the needed amount of formaldehyde stabilizer. These advantageous effects are achieved by including a secondary amine in the solution along with a formaldehyde precursor and a bleach accelerator.Type: GrantFiled: February 23, 1995Date of Patent: June 4, 1996Assignee: Eastman Kodak CompanyInventors: Charles M. Darmon, Michael P. Youngblood, Rosa P. Sauter
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Patent number: 5518868Abstract: To eliminate the "pi-line" artefact after processing a silver halide industrial photographic X-ray material is disclosed comprising on at least one side of a support, at least one gelatino silver halide emulsion layer and a total amount of silver halide, corresponding to from 6 to 20 g of silver nitrate per square meter and per side, and at least one non-sensitive protective antistress coating, wherein said photographic material comprises at least one vinyl sulphone compound as a hardening agent and at least one polyoxyalkylene compound as a surfactant in at least one of its hydrophilic layers.Type: GrantFiled: August 8, 1995Date of Patent: May 21, 1996Assignee: Agfa-Gevaert, N.V.Inventors: Raymond Florens, Pieter Perdieus, Andre Roefs
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Patent number: 5510232Abstract: Certain cationic hydroquinones are useful catalysts for persulfate bleaching agents in photographic processing methods. These compounds are oxidizable by persulfate and reducible by silver metal at a pH of from 1 to 7, and have a chemically reversible redox couple of from about -0.20 to about +1.5 volts. The persulate bleaching ability is enhanced by the presence of these compounds which are used in a step prior to bleaching.Type: GrantFiled: December 22, 1994Date of Patent: April 23, 1996Assignee: Eastman Kodak CompanyInventor: Terrence R. O'Toole
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Patent number: 5508150Abstract: A method of processing an image wise exposed and developed silver halide photographic element comprising bleaching the photographic element in a bleaching or bleach-fixing solution containing as the primary bleaching agent a complex of ferric ion and a tridentate or a tetradentate ligand, and then processing the photographic element in a solution containing a chelating compound represented by Formula IHOOC(CH.sub.2).sub.m (X) ((CH.sub.2).sub.n COOH).sub.2 (I)whereX is N, or C--OH;n and m are independently 0, 1, or 2; andM is a cationic ion.Type: GrantFiled: December 29, 1993Date of Patent: April 16, 1996Assignee: Eastman Kodak CompanyInventors: Mary E. Craver, Janet M. Huston, Robert J. Opitz
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Patent number: 5508421Abstract: A pyrrolotriazole azomethine dye represented by formula (I), (II) or (IV) is disclosed: ##STR1## Also, a heat transfer dye providing material is disclosed, in which the material includes a support having thereon a dye providing layer containing a heat migrating dye, with the dye providing layer containing at least one pyrrolotriazole azomethine dye represented by any of the above formulae (I), (II) and (IV).Type: GrantFiled: July 22, 1994Date of Patent: April 16, 1996Assignee: Fuji Photo Film Co., Ltd.Inventors: Makoto Suzuki, Hisashi Mikoshiba, Seiiti Kubodera, Osamu Takahashi, Yasuhiro Shimada, Koushin Matsuoka, Shigeru Yamazaki, Katsuyoshi Yamakawa, Kozo Sato
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Patent number: 5451491Abstract: A method of desilvering an imagewise and developed color silver halide element, said method comprising bleaching the photographic element with a peracid bleach and subsequently contacting the photographic element with a fixer solution comprising thiosulfate anion and sodium cation;wherein the Molar-minute fixing Time is less than about 0.2 Molar-minutes.times.m.sup.2 /g Ag.times.the grams of incorporated silver per square meter of the photographic element.Type: GrantFiled: February 22, 1994Date of Patent: September 19, 1995Assignee: Eastman Kodak CompanyInventors: Richard P. Szajewski, John M. Buchanan
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Patent number: 5449593Abstract: A processing solution for a silver halide color photographic material, said solution containing at least one kind of compound represented by formula (I), (II), or (III); ##STR1## the substituents are defined in the instant specification.Type: GrantFiled: February 21, 1992Date of Patent: September 12, 1995Assignee: Fuji Photo Film Co., Ltd.Inventors: Masakazu Morigaki, Hiroshi Kawamoto, Shigeru Nakamura
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Patent number: 5447817Abstract: To eliminate the "pi-line" artefact after processing a method of image formation in a silver halide industrial X-ray photographic material is disclosed wherein said material comprises on at least one side of a support, at least one gelatino silver halide emulsion layer and a total amount of silver halide, corresponding to from 6 to 20 g of silver nitrate per square meter and per side, and at least one non-sensitive protective antistress coating and wherein said method proceeds by the steps of exposing said material to direct X-rays and processing the material in an automatic processing machine by development, fixing, rinsing and drying, characterized in that said material further comprises at least one vinyl sulphone compound as a hardening agent in at least one of its hydrophilic layers, that development occurs in a developer comprising as a surfactant at least one anionic alkylphenoxy and/or alkoxy polyalkyleneoxy phosphate ester, sulphate ester, alkyl carboxylic, sulphonic or phosphonic acid and/or a saltType: GrantFiled: April 5, 1994Date of Patent: September 5, 1995Assignee: AGFA-Gevaert, N.V.Inventors: Raymond Florens, Pieter Perdieus, Peter Willems, Freddy Henderickx
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Patent number: 5441852Abstract: A method of processing a silver halide color photographic material by exposing the material to light, color developing, processing with a solution having a fixing function and thereafter, stabilizing the material. The stabilizing processing solution is one in for replacing formaldehyde in known processing solutions. The compound that replaces the formaldehyde is a meta substituted benzaldehyde. A method of using the processing solution is also disclosed.Type: GrantFiled: May 4, 1994Date of Patent: August 15, 1995Assignee: Konica CorporationInventors: Moeko Hagiwara, Hiroaki Kobayashi
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Patent number: 5424177Abstract: Disclosed is a stabilizer for silver halide color photographic light-sensitive materials comprising-at least one compound represented by Formula (I) and at least one compound selected from the group consisting of Formula (II-A), Formula (II-B) and Formula (II-C); ##STR1## wherein Z represents a group of atoms necessary to form a substituted or unsubstituted homocycle or a substituted or unsubstituted heterocycle, X represents an aldehyde group, ##STR2## wherein R.sub.1 and R.sub.2 each represents a lower alkyl group; 1 represents an integer of 1 to 4, ##STR3## wherein R.sub.1 and R.sub.2 each represent a hydrogen atom or a lower alkyl group, X.sub.1 and X.sub.2 each represent an alkyleneoxy group or a branched alkyleneoxy group, m and n each represents 0 or an integer of 1 to 100, provided that m+n.ltoreq.100 is satisfied, R.sub.3, R.sub.4, R.sub.5 and R.sub.6 each represents a hydrogen atom, a hydroxyl group, a lower alkyl group, an alkoxyl group, a halogen atom or a hydroxyalkyl group.Type: GrantFiled: June 26, 1992Date of Patent: June 13, 1995Assignee: Konica CorporationInventors: Hiroaki Kobayashi, Kenji Kuwae, Moeko Hagiwara
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Patent number: 5424176Abstract: A fixing solution having a pH.gtoreq.7 and comprising a fixing amount of sulfite and a fix accelerating amount of a thioether compound; wherein the fixing solution contains less than 0.05 moles/liter of thiosulfate and a method of processing an imagewise exposed and developed silver halide photographic element comprising fixing in said fixing solution a silver halide photographic element containing at least one emulsion or deposit of silver halide comprising greater than 90 mole % silver chloride.Type: GrantFiled: November 9, 1993Date of Patent: June 13, 1995Assignee: Eastman Kodak CompanyInventors: Eric R. Schmittou, Therese M. Feller, Stuart T. Gordon
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Patent number: 5415979Abstract: A composition of stabilizer for processing silver halide photographic material is disclosed. The composition comprises a fluorinated anionic surfactant represented by Formula I; ##STR1## wherein Rf is an alkyl group having a fluorine atom, an alkenyl group having a fluorine atom or an alkinyl group having a fluorine atom; X is a sulfonamido group, a ##STR2## group or a ##STR3## group, in which Rf' is a saturated or unsaturated hydrocarbon group having a fluorine atom; Y is alkyleneoxide or alkylene; A is an --S.sub.3 M group, an --OSO.sub.3 M group, a --COOM group, an --OPO.sub.3 (M.sub.1) (M.sub.2) group or a --PO.sub.3 (M.sub.1) (M.sub.2) group, in which M, M.sub.1 and M.sub.2 are each a hydrogen atom, a lithium atom, a potassium atom, a sodium atom or an ammonium group; m is 0 or 1 and n is 0 or an integer of 1 to 10.Type: GrantFiled: July 21, 1994Date of Patent: May 16, 1995Assignee: Konica CorporationInventors: Koji Takemura, Hiroaki Kobayashi
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Patent number: 5401621Abstract: A process for processing an imagewise exposed silver halide photographic material comprising a support having thereon at least one light-sensitive silver halide emulsion layer, comprising the steps of developing in a developing bath and processing in a bath having a fixing ability, wherein the bath having the fixing ability contains at least one mesoionic compound represented by formula (I): ##STR1## In a second embodiment, a process is disclosed for processing an imagewise exposed silver halide color photographic material comprising a support having thereon at least one light-sensitive silver halide emulsion layer, comprising the steps of subjecting the material to color development, and then subjecting the material to blix in a blix bath, wherein the blix bath contains at least one mesoionic compound represented formula (III) or (IV): ##STR2##Type: GrantFiled: August 2, 1991Date of Patent: March 28, 1995Assignee: Fuji Photo Film Co., Ltd.Inventors: Tetsuro Kojima, Nobuo Watanabe
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Patent number: 5395742Abstract: There is disclosed a novel diaminostilbene series compound, a method for forming an image using the same, and a composition comprising the same. The diaminostilbene compound is represented by the following formula (I): ##STR1## wherein L.sup.1 and L.sup.2, which are the same or different, each represent --OR.sup.1 or --N--R.sup.2 (R.sup.3), wherein the four substituents L.sup.1 and L.sup.2 have four or more substituents in total selected from substituents represented by the following formula (II);R.sup.1 and R.sup.2 each represent a hydrogen atom, an alkyl group, or an alkyl group having a substituent selected from substituents represented by the formula (II);R.sup.3 represents an alkyl group or an alkyl group having a substituent selected from substituents represented by the formula (II); andM represents a hydrogen atom, an alkali metal, an ammonium, or a pyridinium:formula (II)--SO.sub.3 M, --OSO.sub.3 M, --COOM, and --NR.sub.Type: GrantFiled: May 16, 1994Date of Patent: March 7, 1995Assignee: Fuji Photo Film Co., Ltd.Inventors: Yasuaki Deguchi, Toshiaki Kubo
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Patent number: 5391466Abstract: A method and chemical composition for bleaching or bleach fixing exposed and developed silver halide photographic light-sensitive material using a ferric complex salt of a compound represented by the following Formula I, II, III, IV, V, VI or VII: ##STR1##(R.sub.1)(R.sub.2)N--X.sub.1 --(Z--X.sub.2).sub.n --N(R.sub.3)(R.sub.4)(III)(R.sub.1)HN--X.sub.1 --(Z--X.sub.2).sub.n --NH(R.sub.Type: GrantFiled: November 22, 1993Date of Patent: February 21, 1995Assignee: Konica CorporationInventors: Yutaka Ueda, Kenji Kuwae
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Patent number: 5380626Abstract: A method for forming an image in a silver halide color photographic material comprising a support having thereon at least one light-sensitive silver halide emulsion layer, which comprises imagewise exposing the silver halide color photographic material, color developing the exposed material and then subjecting the developed material to a desilverization treatment, wherein the desilverization treatment is carried out using a processing solution having a bleaching ability and containing at least one of an amidine compound or a bisguanidine compound and a ferric salt of an organic acid, and also a method for processing a silver halide photographic material wherein processing is additionally carried out in the presence of a stilbene fluorescent brightener using a desilverization bath containing at least one of an amidine compound or a bisguanidine compound.Type: GrantFiled: April 6, 1993Date of Patent: January 10, 1995Assignee: Fuji Photo Film Co., Ltd.Inventors: Koichi Nakamura, Yoshiharu Yabuki
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Patent number: 5362609Abstract: Disclosed is a stabilizing solution for a light-sensitive silver halide color photographic material, comprises a compound represented by the following Formula F, and has a pH of from 7.5 to 10.0; ##STR1## wherein Z represents a group of atoms necessary to form a substituted or unsubstituted cyclic hydrocarbon or heterocyclic ring, X represents an aldehyde group, ##STR2## wherein R.sub.1 and R.sub.2 each represent a lower alkyl group. The stabilizing solution and the processing method for a light-sensitive silver halide color photographic material according to this invention, can provide a processing technique that can achieve a superior stability of dye images, can better prevent backside deposits, can promise superior solution stability, and can better prevent yellow staining.Type: GrantFiled: January 26, 1994Date of Patent: November 8, 1994Assignee: Konica CorporationInventors: Kenji Kuwae, Hiroaki Kobayashi, Moeko Hagiwara
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Patent number: 5362882Abstract: A novel pyrrolotriazole derivative is disclosed, represented by any one of formulae (I), (II), (III), (IV), or (V): ##STR1## A heat transfer dye providing material is also disclosed, comprising a support having thereon a dye providing layer containing a heat migrating dye, said dye providing layer containing at least one pyrrolotriazole azomethine dye represented by any one of formulae (I), (II), (III), or (IV).Type: GrantFiled: June 5, 1992Date of Patent: November 8, 1994Assignee: Fuji Photo Film Co., Ltd.Inventors: Makoto Suzuki, Yasuhiro Shimada, Koushin Matsuoka, Shigeru Yamazaki, Katsuyoshi Yamakawa, Kozo Sato
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Patent number: 5334493Abstract: A photographic processing solution for processing a silver halide color photographic light-sensitive material and a processing method using the same is disclosed. The photographic processing solution comprises formaldehyde and an amine compound having at least one --NH-- group in the --NH-- equivalent amount per liter of the photographic processing solution being greater than the molar concentration of formaldehyde in the photographic processing solution. The photographic processing solution is stable and has a reduced formaldehyde vapor pressure. The processing method provides excellent image stability.Type: GrantFiled: September 29, 1993Date of Patent: August 2, 1994Assignee: Fuji Photo Film Co., Ltd.Inventors: Yoshihiro Fujita, Masakazu Morigaki, Hiroshi Kawamoto, Shigeru Nakamura, Morio Yagihara, Hiroyuki Watanabe
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Patent number: 5298370Abstract: A method of processing a silver halide color photographic material using a carbamoyl or imidazole type organic metal complex bleaching agent of any of compounds of formulae (I), (II), (III), (IV), and (V) and a mercapto, mesoionic or thioether fixing agent of compounds of formulae (A), (B) and (C). A bleach-fixing composition containing the bleaching agent and fixing agent is also disclosed. The processing method provides good desilvering with little bleach fogging of the processed photographic material, and the processing composition has good stability. W in formula (III) below represents a divalent linking group.Type: GrantFiled: May 13, 1992Date of Patent: March 29, 1994Assignee: Fuji Photo Film Co., Ltd.Inventors: Tetsuro Kojima, Hisashi Okada, Nobuo Watanabe
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Patent number: 5298373Abstract: Silver halide black-and-white photosensitive material is processed with a fixer which contains 0.5 to 2.0 mol/liter of a thiosulfate and 0.003 to 0.3 mol/liter of a meso-ionic compound, the moles of the meso-ionic compound divided by the moles of the thiosulfate being from 0.003 to 0.2. The fixer accelerates fixing speed, enabling rapid processing of photographic material.Type: GrantFiled: December 6, 1991Date of Patent: March 29, 1994Assignee: Fuji Photo Film Co., Ltd.Inventors: Senzo Sasaoka, Katsumi Hayashi, Kota Fukui, Tetsuro Kojima
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Patent number: 5296338Abstract: The present invention relates to photographic processing, and specifically discloses the use of ethyl bis (polyethoxy ethanol) alkyl ammonium ethyl sulfate as the effective ingredient in an anti-static additive for photographic processing. The effective ingredient is combined with isopropanol and water in the ratio of 8 oz./2 oz./118 oz. (per gallon) to provide the desired anti-static coating to the photographic negatives.Type: GrantFiled: June 24, 1993Date of Patent: March 22, 1994Inventor: John A. Chester
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Patent number: 5278033Abstract: Disclosed is a stabilizing solution for a light-sensitive silver halide color photographic material, comprises a compound represented by the following Formula I, and has a surface tension of from 15 to 60 dyne/cm at 20.degree. C.; ##STR1## wherein Z represents a group of atoms necessary to form a substituted or unsubstituted cyclic hydrocarbon or heterocyclic ring, X represents an aldehyde group, ##STR2## wherein R.sub.1 and R.sub.2 each represent a lower alkyl group. The stabilizing solution and the processing method for a light-sensitive silver halide color photographic material according to this invention, can provide a processing technique that can achieve a superior stability of dye images, can better prevent backside deposits, can promise superior solution stability, and can better prevent yellow staining.Type: GrantFiled: March 20, 1992Date of Patent: January 11, 1994Assignee: Konica CorporationInventors: Moeko Hagiwara, Ichiro Tsuchiya, Tsuyoshi Haraguchi
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Patent number: 5272044Abstract: Disclosed is a silver halide photographic material comprising a compound represented by the general formula (I), (II), or a salt thereof or a compound represented by the general formula (III), with these groups being defined as in the specification: ##STR1## also disclosed is a method for the processing of a silver halide photographic material, which comprises processing a silver halide photographic material in the presence of a compound represented by the general formula (I) or (II) or a salt thereof or a compound represented by the general formula (III).Type: GrantFiled: August 31, 1992Date of Patent: December 21, 1993Assignee: Fuji Photo Film Co., Ltd.Inventors: Junji Nishigaki, Akihiko Ikegawa, Masaki Okazaki, Minoru Yamada, Nobuhiko Uchino
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Patent number: 5246822Abstract: The present invention is directed to a method of processing imagewise exposed photographic color silver halide materials in which, after the dye image is formed, the photographic material is treated with an aqueous stabilizing solution containing iodide ions but no fixing agent.Type: GrantFiled: August 3, 1992Date of Patent: September 21, 1993Assignee: Eastman Kodak CompanyInventors: Gareth B. Evans, John R. Fyson, Peter D. Marsden
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Patent number: 5232821Abstract: Photographic coupler compositions comprise (a) a magenta dye-forming coupler compound, and (b) a sulfoxide compound or a sulfone compound in an amount sufficient to improve the light stability of a magenta dye formed from the magenta dye-forming coupler compound. The sulfoxide compound is of the formula ##STR1## and the sulfone compound is of the formula ##STR2## wherein R.sub.1 and R.sub.Type: GrantFiled: April 1, 1991Date of Patent: August 3, 1993Assignee: Eastman Kodak CompanyInventors: Paul B. Merkel, Edward Schofield
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Patent number: 5225320Abstract: Method of processing a silver halide color photosensitive material which comprises the steps of a developing process, a bleach-fixing solution or a fixing solution, and then, without washing with water, treated with a stabilizing solution. The method is characterized in that the silver halide color photo sensitive material comprises a high boiling point organic solvent having a dielectric constant of 3.5 or more and the stabilizing solution comprises silicone having the surface tension 20 to 60.Type: GrantFiled: April 22, 1992Date of Patent: July 6, 1993Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: Satoru Kuse, Shigeharu Koboshi
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Patent number: 5194368Abstract: The present invention relates to a method for processing a silver halide photographic light-sensitive material having at least one silver halide emulsion layer containing silver iodide with a processing solution having fixing ability after developing the light-sensitive material. The object of the present invention is to speed up the fixing process in the foregoing method and to reduce the amount of waste liquor from the fixing process. The present invention is characterized in that the processing with the processing solution having fixing ability is performed while the processing solution is brought into contact with an anion-exchange resin and that 20 to 2,000 l of the processing solution per liter of the anion-exchange resin is brought into contact with the resin.Type: GrantFiled: September 6, 1989Date of Patent: March 16, 1993Assignee: Fuji Photo Film Co., Ltd.Inventors: Shinji Ueda, Tetsuro Kojima, Tohru Kitahara, Tomokazu Yasuda, Yoshihiro Fujita, Takatoshi Ishikawa
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Patent number: 5183727Abstract: A method of processing a color negative photographic recording material containing tabular grain silver halide emulsion units wherein the fixing agent comprises an aqueous solution of thiosulfate with low ammonium concentration. The silver halide emulsion in at least one of the units comprises grains having a tabularity of between about 50 and 25,000. The photographic recording material has a silver coverage of less than about 7.0 g/m.sup.2, and an iodide coverage of less than about 0.35 g/m.sup.2. The fixing bath has an ammonium concentration of less than about 1.2 molar, and ammonium may be absent entirely.Type: GrantFiled: August 19, 1991Date of Patent: February 2, 1993Assignee: Eastman Kodak CompanyInventors: Eric R. Schmittou, Allan F. Sowinski
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Patent number: 5110716Abstract: A stabilizing solution for processing silver halide photographic light-sensitive materials and a processing method of silver halide photographic light-sensitive materials using the stabilizing solution are disclosed. The stabilizing solution contains a polyoxyalkylene type compound and a compound selected from triazine type compounds and methylol type compounds.Type: GrantFiled: April 23, 1990Date of Patent: May 5, 1992Assignee: Konica CorporationInventors: Satoru Kuse, Shigeharu Koboshi, Moeko Hagiwara
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Patent number: 5108879Abstract: A method for the processing of a silver halide photographic material is provided, which comprises the steps of;developing a silver halide photographic material which has been previously exposed to light,processing the developed silver halide photographic material with a bath which contains a thiosulfate and which has a fixing ability, andsubsequently subjecting the developed silver halide photographic material to washing and/or stabilizing in a multi-stage countercurrent process, wherein the multi-stage countercurrent process includes a reverse osmosis membrane and a washing solution and/or stabilizing solution, said solution containing at least one member selected from the group consisting of a sulfinic acid, a sulfinate and a carbonyl compound-bisulfurous acid addition product.Type: GrantFiled: July 25, 1990Date of Patent: April 28, 1992Assignee: Fuji Photo Film Co., Ltd.Inventors: Akira Abe, Shinji Ueda
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Patent number: 5098805Abstract: There is provided a color photograph improved in preservability that has been obtained by making chemically inactive the aromatic amine type color developing agents and their oxidized product that remains in the silver halide photographic materials after color development processing. The color photograph exhibits excellent performance in that its white background can be prevented from discoloring even during long-term storage or display, and deterioration of a dye image caused by the remaining color developing agent being taken into the photographic material after the color development, bleaching, and fixing processes, or due to its oxidized product, can be prevented.Type: GrantFiled: March 19, 1990Date of Patent: March 24, 1992Assignee: Fuji Photo Film Co., Ltd.Inventors: Nobuo Furutachi, Osamu Takahashi, Masakazu Morigaki
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Patent number: 5068164Abstract: The present invention provides a developer for making a lithographic printing plate by silver complex diffusion transfer process which contains a hydroxyaryl fatty acid. This hydroxyaryl fatty acid preferably has the formula: ##STR1## wherein R.sub.1 represents a straight chain alkyl group of 1-19 carbon atoms and R.sub.2 represents a straight chain alkylene group of 1-19 carbon atoms with a proviso that sum of carbon atoms of R.sub.1 and R.sub.2 is 10-20 and R.sub.3 and R.sub.4 each represents a hydrogen atom, a hydroxyl group or an alkyl or alkoxy group of 1-9 carbon atoms.Type: GrantFiled: March 27, 1990Date of Patent: November 26, 1991Assignee: Mitsubishi Paper Mills, LimitedInventors: Toshiro Kondo, Hidetoshi Miura
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Patent number: 5063131Abstract: A method for processing a silver halide color photographic photosensitive material comprises treating a silver halide photographic material with a bath having fixing ability and then washing with water and/or stabilizing the photosensitive material and characterized in that the amount of replenisher for water washing or stabilization is controlled so that it is 1 to 50 times the volume of liquid carried over by the photosensitive material processed from the bath preceding the water washing bath or the stabilization bath and that the photosensitive material comprises, for instance, compounds (13): ##STR1## The method makes it possible to substantially keep the image performance of the photosensitive material processed high while substantially saving the amount of washing water or the stabilization liquid and substantially shortening the water washing or the stabilization time.Type: GrantFiled: June 22, 1990Date of Patent: November 5, 1991Assignee: Fuji Photo Film Co., Ltd.Inventors: Akira Abe, Yoshihiro Fujita, Keiji Mihayashi
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Patent number: 5037725Abstract: A process for stabilizing the magenta dye image in a photographic color element comprises the step of treating the element after the step of color developing and prior to the step of bleaching or bleach-fixing with an aqueous solution that has a pH in the range of 7 to 10 and contains an effective amount of an alkali metal formaldehyde bisulfite.Type: GrantFiled: December 11, 1989Date of Patent: August 6, 1991Assignee: Eastman Kodak CompanyInventors: Ann M. Cullinan, Charles M. Darmon, William G. Henry, Paul A. Schwartz
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Patent number: 5026629Abstract: A fixing bath and a method of fixing wherein the bath contains an imidazole compound that facilitates the removal of thiosulfate from the film in addition to reducing the presence of stain in the resulting film.Type: GrantFiled: February 7, 1990Date of Patent: June 25, 1991Assignee: Eastman Kodak CompanyInventors: Hugh G. McGuckin, Michael G. Blount, Paul Schwartz, Donald F. McLaen, James L. Lyon
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Patent number: 5006440Abstract: A silver image produced by imagewise exposure, development and fixing of a photographic material containing at least one silver halide emulsion layer is stabilized by being subjected after fixing to treatment by a stabilizing bath containing a compound corresponding to general formula IR.sub.1 --(NHCO--R.sub.2 --R.sub.3).sub.m (I)in whichR.sub.1 represents a nitrogen-containing 5- or 6-membered heterocycle,R.sub.2 represents an optionally branched C.sub.1-8 alkylene radical,R.sub.3 represents Cl or Br andm=1 or 2.Type: GrantFiled: September 21, 1990Date of Patent: April 9, 1991Assignee: Agfa-Gevaert AktiengesellschaftInventors: Werner Berthold, Hans hlschlager
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Patent number: 5006456Abstract: A method for processing a silver halide color photographic light-sensitive material comprises the steps of developing the light-sensitive material with a color developer containing an aromatic primary amine color developing agent, desilvering, washing with water and/or stabilizing the material in which at least one processing solution used in at least one step of the processing contains at least one compound selected from the group consisting of sulfinic acids and salts and precursors thereof. This method makes it possible to effectively prevent the formation of stains due to not only the components of the light-sensitive material per se but also those attributable to the processing solutions, during processing or storage with time, and to enhance the stability of processing solutions.Type: GrantFiled: June 6, 1988Date of Patent: April 9, 1991Assignee: Fuji Photo Film Co., Ltd.Inventors: Masakazu Morigaki, Takatoshi Ishikawa, Kazuto Andoh, Nobuo Seto, Toshio Koshimizu, Shinji Ueda
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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: 4987059Abstract: Excellent image silver stability is obtained without intermediate washing after fixing and without a special finishing bath by a process for stabilizing a silver image produced by exposure, development and fixing of a photographic material containing at least one silver halide emulsion layer, in which, immediately after fixing, the photographic material is subjected to treatment by a stabilizing bath containing a compound corresponding to general formula (I) ##STR1## in which X=Cl, BrR.sup.1 =H, C.sub.1-4 alkyl, C.sub.6-10 aryl,R.sup.2 =CHO, COOH, COONa, CH.sub.2 COOH, CH.sub.2 COONa, CONR.sub.2.sup.3, CONHR.sup.3,R.sup.3 =H, C.sub.1-2 alkyl,and a compound corresponding to formula II ##STR2## and/or to formula III ##STR3## in which R.sup.3 and R.sup.4 may be the same or different and represent H, --NH.sub.2, alkyl, alkenyl, cycloalkyl, aryl, alkoxy, alkylthio, alkylsulfonyl, sulfamoyl, acyl, --SH or a heterocyclic group.Type: GrantFiled: November 17, 1989Date of Patent: January 22, 1991Assignee: Agfa-Gevaert AktiengesellschaftInventors: Werner Berthold, Helmut Haseler, Paul Marx, Heinz Meckl, Hans hischlager
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Patent number: 4980272Abstract: A method of processing a photosensitive material with a final processing solution is disclosed. The photosensitive material comprises at least one compound selected from the group consisting of compounds represented by the following Formulas (AI-I), (AI-II), (AI-III), (AI-IV) and (BS-I), a concentration of a soluble iron salt in the final processing solution is at least 5.times.10.sup.-3 /l and a processing time of the final processing solution is not more than 30 seconds.Type: GrantFiled: July 12, 1989Date of Patent: December 25, 1990Assignee: Konica CorporationInventors: Satoru Kuse, Shigeharu Koboshi, Masao Ishikawa
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Patent number: 4963474Abstract: A method of processing a silver halide color photographic material in which the material is, after color-developed, processed in a bath having bleaching ability and then in a bath having fixing ability, wherein a bleaching agent in the bath having bleaching ability is at least one iron(III) complex of an aminopolycarboxylic acid of the following formula (I) and the bath having fixing ability contains at least one organic phosphonic acid: ##STR1## wherein n represents 3, 4 or 5, and is preferable 3.Type: GrantFiled: February 13, 1989Date of Patent: October 16, 1990Assignee: Fuji Photo Film Co., Ltd.Inventors: Yoshihiro Fujita, Shinji Ueda, Takatoshi Ishikawa, Akira Abe
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Patent number: 4948710Abstract: A method of continuously processing an imagewise exposed silver halide color photographic light-sensitive material is described, in which subsequent to a bleach-fixing step or bleaching and fixing steps the material is washed in a water washing step in the presense of at least one compound represented by general formula (I): ##STR1## wherein M is a hydrogen atom, a lithium atom, a sodium atom, a potassium atom or an ammonium ion and each M may be the same or different.This method permits great reduction of the amount of water used in the washing step in the processing of silver halide color photographic light-sensitive materials.Type: GrantFiled: July 17, 1989Date of Patent: August 14, 1990Assignee: Fuji Photo Film Co., Ltd.Inventors: Takatoshi Ishikawa, Shinzo Kishimoto
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Patent number: H953Abstract: A method for processing a silver halide color photographic material which comprises the steps of, after color-developing, processing the silver halide color photographic material with a bleaching bath, and then processing with a fixing bath, wherein the bleaching bath has a pH value of from 2.5 to 5.5 and contains a (1,3-diaminopropane-tetraacetato)iron(III) complex salt in an amount of at least 0.2 mol/liter and an organic acid in an amount of at least 0.5 mil/liter, and the fixing bath contains at least one compound selected from formulae (I), (II), (III), (IV), and (V):R.sup.1 --(X--R.sup.3).sub.m --X--R.sup.2 (I)wherein m represents 0 or an integer of from 1 to 4; R.sup.1 and R.sup.2 each represents a substituted or unsubstituted alkyl group; R.sup.3 represents a substituted or unsubstituted alkylene group, provided that when m is 2 or more, the R.sup.3 groups in each of the (X--R.sup.3) segments may be the same or different; and X represents sulfur, oxygen, ##STR1## wherein Z represents ##STR2## --OR.Type: GrantFiled: August 4, 1989Date of Patent: August 6, 1991Assignee: Fuji Photo Film Co., Ltd.Inventors: Masatoshi Goto, Kiyoshi Morimoto, Haruhiko Iwano