Stabilizer-preservative Patents (Class 430/490)
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Patent number: 5030547Abstract: A negative-type silver halide photographic material is disclosed, which comprises a support having provided thereon at least one hydrophilic colloid layer, at least one of which is a silver halide emulsion layer, wherein the hydrophilic colloid layer contains:(a) a compound represented by formula (I): ##STR1## wherein, A.sub.1 and A.sub.2 both represent hydrogen atoms, or one represents a hydrogen atom and the other a sulfonyl group or an acyl group, R.sub.1 represents an aliphatic group, an aromatic group or a heterocyclic group, G.sub.1 represents a carbonyl group, a sulfonyl group, a sulfoxy group, ##STR2## wherein R.sub.2 is an alkoxy group or an aryloxy group, a ##STR3## group, or an iminoethylene group, X.sub.1 is a moiety which instigates a ring-forming reaction by cleaving the --G.sub.1 --X.sub.1 moiety from the residual molecule and forming a cyclic structure containing the atoms of the --G.sub.1 --X.sub.Type: GrantFiled: June 28, 1989Date of Patent: July 9, 1991Assignee: Fuji Photo Film Co., Ltd.Inventors: Kazunobu Katoh, Morio Yagihara
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Patent number: 5028517Abstract: A method for processing a silver halide color photographic light-sensitive material is disclosed. Fogging caused by the color developer contaminated by heavy metal ions is surpressed by the processing method. The processing method is excellent in the point that stable photographic propertied can be obtained for long while of running. The processing method comprises a step for developing with a color developer an imagewise exposed light-sensitive material which comprises a support and a photographic layer being provided on the support and including at least one silver halide emulsion layer, wherein the photographic layer has a swelling ratio within the range of from 1.5 to 3.5 and the silver halide emulsion layer comprises a silver halide emulsion having a silver chloride content of not less than 90 mole %, and the developing step is performed for a time of not less than 90 seconds with a color developer containing a compound represented by the following Formula (1): ##STR1## wherein R.sub.1 and R.sub.Type: GrantFiled: May 18, 1989Date of Patent: July 2, 1991Assignee: Konica CorporationInventors: Satoru Kuse, Masao Ishikawa, Yoshimasa Komatsu, Shigeharu Koboshi
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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: 5006438Abstract: A process for processing a silver halide color photographic material is disclosed which comprises processing a silver halide color photographic material containing at least one compound represented by formula (I) or (II): ##STR1## wherein R.sub.1 and R.sub.2 each represents an aliphatic group, an aromatic group, or a heterocyclic group; A represents a group forming a chemical bond by reaction with an aromatic primary amine color developing agent; n represents 0 or 1; X represents a group released on reaction with an aromatic primary amine color developing agent; B represents a hydrogen atom, an aliphatic group, an aromatic group, a heterocyclic group, an acyl group, or a sulfonyl group; and Y represents a group accelerating the addition of an aromatic primary amine color developing agent to the compound of formula (II), and said R.sub.1 and X or said Y and R.sub.Type: GrantFiled: May 3, 1990Date of Patent: April 9, 1991Assignee: Fuji Photo Film Co., Ltd.Inventors: Takatoshi Ishikawa, Makoto Umemoto, Nobuo Sakai, Genichi Furusawa
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Patent number: 5004670Abstract: A high-contract development process is disclosed, which comprises developing a silver halide photographic material containing at least a hydrazine derivative with a developer having a pH of from 10.0 to 12.3 and containing(a) a dihydroxybenzene developing agent,(b) at least 0.3 mol/liter of a sulfite, and(c) at least one of compounds represented by formulae (I-1), (I-2), (I-3) or I-4); ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4, and R.sub.5 each represents an alkyl group having from 1 to 5 carbon atoms or a hydroxyalkyl group, provided that R.sub.1 and R.sub.2, or R.sub.3 R.sub.4 may combine with each other to form a nitrogen-containing heterocyclic ring; and A and D each represents a substituted or unsubstituted alkylene group, ##STR2## wherein R.sub.6, R.sub.7, R.sub.8, and R.sub.9 =each represents an alkyl group having from 1 to 5 carbon atoms or a hydroxyalkyl group, provided that R.sub.6 and R.sub.7, or R.sub.8 and R.sub.Type: GrantFiled: February 6, 1989Date of Patent: April 2, 1991Assignee: Fuji Photo Film Co., Ltd.Inventors: Eiichi Okutsu, Mitsunori Hirano, Morio Yagihara
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Patent number: 5002862Abstract: A method for processing a silver halide color photographic material is described, comprising a support having thereon at least one light-sensitive silver halide emulsion layer, wherein after imagewise exposure, said silver halide color photographic material is processed with a color developer containing at least one aromatic primary amine developing agent and at least one compound capable of releasing the aromatic primary amine developing agent which has substantially no developing agent ability prior to the release of the aromatic primary amine developing agent.Type: GrantFiled: September 28, 1988Date of Patent: March 26, 1991Assignee: Fuji Photo Film Co.Inventors: Morio Yagihara, Takatoshi Ishikawa, Hiroshi Fujimoto
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Patent number: 4987060Abstract: A concentrated alkaline photographic developer composition, packaged in a single part to be diluted with water to form a ready to use developing solution for silver halide photographic materials, which comprises dihydroxybenzene developing agents, inorganic alkali agnets, inorganic antioxidant agents, sequestering agents and antifoggants, wherein said inorganic antioxidant agents comprise Na.sub.2 SO.sub.3 (sodium sulfite) and K.sub.2 SO.sub.3 (potassium sulfite) in a molecular ratio of 1:1 to 1:3 in an amount of from 1.6 to 4 moles per liter, the molecular ratio between said inorganic antioxidant agents and the developing agents is from 1.50 and 4.00, and said concentrated developer composition has a specific gravity higher than 1.300 at 20.degree. C.Type: GrantFiled: March 23, 1990Date of Patent: January 22, 1991Assignee: Minnesota Mining and Manufacturing CompanyInventor: Carlo Marchesano
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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: 4983504Abstract: A method for processing photographic silver halide color negative film and color negative paper each through its own color developing solutions wherein the paper color developing solution is replenished and the overflow from this replenished solution is used to replenish the film color developing solution and wherein (a) the color paper is based on substantially pure silver chloride emulsions and contains no more than 1% molar silver bromide based on total silver halide and (b) both color developing solutions and the replenisher are free from benzyl alcohol.Apparatus for carrying out the above-described method comprises a series of processing stations and means for advancing the photographic material being processed through the apparatus wherein there is provided means for collecting the overflow from the paper developer station and means for passing it directly or indirectly to the film processing station.Type: GrantFiled: February 21, 1989Date of Patent: January 8, 1991Assignee: Eastman Kodak CompanyInventors: Peter D. Marsden, John R. Fyson, Peter J. Twist
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Patent number: 4975357Abstract: Hydroxylamine compounds are commonly included in photographic color developing solutions to retard aerial oxidation. When the photographic element processed in the color developing solution is one which contains an aromatic polyhydroxy compound which serves as a stabilizing addendum, there will be a build-up of the level of such compound in the developing solution as seasoning occurs. Also, as a consequence of seasoning, there is a gradual build-up of the level of trace metal impurities in the solution. Interaction of a trace metal impurity with the aromatic polyhydroxy compound can form a metal-complex which catalyzes the oxidation of the hydroxylamine compound and thereby renders it ineffective for its intended purpose. In the improved method of this invention, the color developing solution is protected against the unwanted metal-complex catalyzed oxidation by incorporation therein of an aminopolycarboxylic acid sequestering agent.Type: GrantFiled: May 23, 1989Date of Patent: December 4, 1990Assignee: Eastman Kodak CompanyInventors: Jean M. Buongiorne, Janet M. Huston, Paul A. Schwartz, Sheridan E. Vincent
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Patent number: 4965177Abstract: Potassium iodide (or a related iodide) when incorporated in an alkaline activator for use in a rapid access processor using developer-incorporated, resin-coated paper, (i) produces a cold image tone in black-and-white photographic prints, and (ii) maintains the image tone of a large number of prints within a narrow image tone range over a (one week or one thousand 8.times.10 inch print) design life of the activator solution.Type: GrantFiled: August 2, 1989Date of Patent: October 23, 1990Assignee: Eastman Kodak CompanyInventor: Donald F. McLaen
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Patent number: 4965175Abstract: A method for continuous processing of a silver halide color photosensitive material is disclosed. The process steps comprise developing a color photographic light-sensitive material comprising a support having thereon at least one light-sensitive silver halide emulsion layer containing a silver halide comprising at least 80 mol % silver chloride, in a color developer solution containing a chloride ion concentration of from 3.5.times.10.sup.-2 to 2.0.times.10.sup.-1 mol/l, said developing step being conducted in a developer bath having a bath opening ratio (S/V) of at most 0.015 cm.sup.-1 wherein S is air-contacting area of the bath in cm.sup.2 and V is a total volume of the bath in cm.sup.3.Type: GrantFiled: October 3, 1989Date of Patent: October 23, 1990Assignee: Fuji Photo Film Co., Ltd.Inventors: Hiroshi Fujimoto, Kazuaki Yoshida
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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: 4960684Abstract: A silver halide color photographic material is processed with a color developer containing at least one compound of the following formula (I) and at least one compound of the following formula (II): ##STR1## where R.sup.1, R.sup.2 and R.sup.3 independently represents a hydrogen atom, an alkyl group, an aryl group or a heterocyclic group;R.sup.4 represents a hydrogen atom, a hydroxyl group, a hydrazino group, an alkyl group, an aryl group, a heterocyclic group, an alkoxy group, an aryloxy group, a carbamoyl group or an amino group;X.sup.1 represents a divalent group;n represents 0 or 1; and when is 0, R.sup.4 represents an alkyl group, an aryl group or a heterocyclic group; and R.sup.3 and R.sup.4 may together form a heterocyclic group; ##STR2## where Z represents an atomic group necessary for completing an aromatic nucleus.Type: GrantFiled: January 23, 1989Date of Patent: October 2, 1990Assignee: Fuji Photo Film Co., Ltd.Inventors: Takatoshi Ishikawa, Hiroshi Fujimoto, Morio Yagihara, Kazuto Andoh
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Patent number: 4956267Abstract: A method for forming a direct positive color image by image-wise exposing to light a light-sensitive material having at least one internal latent image type silver halide emulsion layer which is unfogged and color image-forming couplers on a support; either (1) subjecting the resulting material to fogging exposure to light and/or processing it with a nucleating agent before development, and then developing the resulting material with a surface developing solution containing an aromatic primary amine type color developing agent, or (2) developing the material after the image-wise exposure with a surface developing solution containing an aromatic primary amine type color developing agent under fogging exposure and/or in the presence of a nucleating agent; and bleach-fixing the resulting material, wherein the color developing solution contains at least one compound selected from the group consisting of compounds represented by the following general formulae (I), (II), (III) and (IV): ##STR1## wherein X representType: GrantFiled: May 31, 1988Date of Patent: September 11, 1990Assignee: Fuji Photo Film Co., Ltd.Inventors: Shinji Ueda, Tatsuo Heki, Noriyuki Inoue, Takatoshi Ishikawa, Nobutaka Ohki, Morio Yagihara, Kiyoshi Morimoto, Hiroshi Fujimoto, Kazuto Andoh
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Patent number: 4948713Abstract: There are disclosed a processing solution of a light-sensitive silver halide color photographic material, which comprises containing a compound represented by the formula (I) shown below, and a processing method of the same, which comprises subjecting a light-sensitive silver halide color photographic material having at least one layer of silver halide emulsion layer on a support to imagewise exposure and then applying processing including at least a color developing processing, characterized in that the color developing solution to be used in the color developing processing contains a compound represented by the formula (I) shown below: ##STR1## wherein R.sub.1 represents an alkyl group having 1 to 5 carbon atoms substituted with an alkoxy group, and R.sub.2 represents a hydrogen atom, an alkyl group having 1 to 5 carbon atoms or an alkyl group having 1 to 5 carbon atoms substituted with an alkoxy group, and R.sub.1 and R.sub.2 may be bonded with each other to form a ring containing an oxygen atom.Type: GrantFiled: March 27, 1989Date of Patent: August 14, 1990Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: Kazuhiro Kobayashi, Shigeharu Koboshi, Satoru Kuse, Masao Ishikawa
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Patent number: 4927746Abstract: 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 polyacrylic acid or a 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 thiousulfate 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 polyacrylic acid or water-soluble salt thereof functions to avoid the formation of unwanted precipitates.Type: GrantFiled: June 3, 1988Date of Patent: May 22, 1990Assignee: Eastman Kodak CompanyInventor: Paul A. Schwartz
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Patent number: 4923787Abstract: A photographic element is described which comprises a compound capable of scavenging oxidized developing agent to prevent stain and fog formation in developed color images.Type: GrantFiled: May 12, 1989Date of Patent: May 8, 1990Assignee: Eastman Kodak CompanyInventor: John W. Harder
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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: 4920041Abstract: A method for processing a silver halide color photographic material comprising a reflective support having thereon at least one light-sensitive silver halide emulsion layer containing a color coupler or color couplers, which comprises the step of, after imagewise exposing, developing said silver halide color photographic material with a color developing solution which does not substantially contain benzyl alcohol and which contains an aromatic primary amine color developing agent represented by formula (A): ##STR1## wherein X represents a compound capable of forming a salt with a primary amine; and a compound represented by formula (I): ##STR2## wherein R.sup.1 represents a hydrogen atom or a substituted or unsubstituted alkyl, aryl, alkoxy, aryloxy or amino group; and R.sup.2 represents a hydrogen atom or a substituted or unsubstituted alkyl or aryl group; or R.sup.1 and R.sup.2 may be bonded to each other to form a carbon ring or a hetero-ring.Type: GrantFiled: January 12, 1989Date of Patent: April 24, 1990Assignee: Fuji Photo Film Co., Ltd.Inventors: Nobutaka Ohki, Kazuto Andoh, Takatoshi Ishikawa
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Patent number: 4917992Abstract: Salts of 1-phenyl-3-pyrazolidinones which are useful photographic silver halide developing agents.Type: GrantFiled: October 23, 1987Date of Patent: April 17, 1990Assignee: Ciba-Geigy AGInventors: Malcolm D. Tirel, William E. Long
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Patent number: 4906554Abstract: This invention relates to a color developing solution for processing of a light-sensitive silver halide color photographic material which comprises containing a compound represented by the following formula [I] and at least one compound selected from a compound represented by the following formula [II] and a compound represented by the following formula [III], and a processing method of a light-sensitive silver halide color photographic material, which comprises, after imagewise exposure of a light-sensitive silver halide color photographic material, carrying out processing including at least a color developing step, wherein the light-sensitive silver halide color photographic material has silver halide emulsion layers containing silver halide grains substantially comprised of silver chloride, and a color developing solution used in the color developing step contains the compound represented by the following formula [I] and at least one compound selected from the compound represented by the following formulaType: GrantFiled: December 11, 1987Date of Patent: March 6, 1990Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: Masao Ishikawa, Shigeharu Koboshi, Kazuhiro Kobayashi, Keiji Ohbayashi, Mitsuhiro Okumura, Shigeo Chino, Kaoru Onodera
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Patent number: 4904576Abstract: Photosensitive cuprous halide-type materials, particularly cuprous chloride and cuprous bromide materials, can be prepared from an anode product material produced from electrolysis of copper in an aqueous acid halide bath. Preferably, the copper electrolysis is carried out in a dilute hydrochloric acid solution. The resulting anode product materials are particularly sensitive in the presence of a polar molecule catalyst such as water or ammonia. In one highly preferred embodiment of this invention the anode product material is treated with the aqueous solution of ammonium salt of a water soluble organic acid (e.g. aqueous solution of ammonium ascorbate); one of the chief advantages of these materials is that they are highly photosensitive when dry and can be developed from a latent image prepared thereon.Type: GrantFiled: March 18, 1988Date of Patent: February 27, 1990Assignee: Action Exploration ServicesInventor: Ray S. Caldwell
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Patent number: 4900651Abstract: A method for processing a silver halide color photographic material is disclosed, which comprises developing a silver halide color photographic material with a color developer comprising:(a) an aromatic primary amine color developing agent;(b) at least one brightening agent represented by formula (I) ##STR1## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 each represents a hydroxyl group, an alkoxy group, an amino group, an alkylamino group, an aryloxy group or an arylamino group; provided that R.sub.1 is not the same as R.sub.3 when R.sub.2 is the same as R.sub.4, and R.sub.1 is not the same as R.sub.4 when R.sub.2 is the same as R.sub.3 ; and M represents a monovalent cation; and(c) at least one organic phosphonic acid series chelating agent.Type: GrantFiled: February 22, 1988Date of Patent: February 13, 1990Assignee: Fuji Photo Film Co., Ltd.Inventors: Takatoshi Ishikawa, Hiroshi Fujimoto
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Patent number: 4897339Abstract: A method for processing a silver halide color photographic material including a step of developing the material with a developer containing an aromatic primary amine color developing agent and at least one compounds represented by the following general formulae (Ia) and (Ib): ##STR1## wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4, which may be the same or different, each represents a hydrogen atom or an unsubstituted alkyl group; R.sup.5, R.sup.6 and R.sup.7, which may be the same or different, each represents an unsubstituted alkylene group; X.sup.1 and X.sup.2, which may be the same or different, each represents ##STR2## --O--, --S--, --CO--, --SO.sub.2 or --SO--, or a combination thereof, and R.sup.8 represents a hydrogen atom or an unsubstituted alkyl group; and m and n, which may be the same or different, each is 0, 1, 2 or 3; and ##STR3## wherein R.sup.13 represents a substituted alkylene group; and R.sup.9, R.sup.10, R.sup.11 and R.sup.Type: GrantFiled: April 6, 1989Date of Patent: January 30, 1990Assignee: Fuji Photo Film Co., Ltd.Inventors: Kazuto Andoh, Takatoshi Ishikawa, Morio Yagihara
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Patent number: 4892804Abstract: Photographic color developing compositions which are especially useful in the processing of high chloride silver halide photographic elements are free, or at least substantially free, of bromides; optionally contain a small amount of sulfite; and comprise (1) a primary aromatic amino color developing agent, (2) an N,N-dialkylhydroxylamine, (3) at least one sequestering agent which functions to sequester iron and (4) at least one sequestering agent which functions to sequester calcium. The developing compositions exhibit excellent stability. They also provide minimal development restraint which permits the use of very short development times, as needed for rapid access processing.Type: GrantFiled: August 16, 1988Date of Patent: January 9, 1990Assignee: Eastman Kodak CompanyInventors: Sheridan E. Vincent, Richard W. Berls
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Patent number: 4876174Abstract: The present invention relates to a method of processing a silver halide color photosensitive material. In particular, to a rapid processing method capable of reducing the development time. In the processing method, an exposed silver halide color photosensitive material having at least one emulsion layer containing a silver halide having a chlorine content of at least 80 molar % based on the total halogens is processed with a color developer containing an aromatic primary amine color developing agent and a dialkylhydroxylamine of the following general formula (I) but substantially free of benzyl alcohol: ##STR1## wherein R.sup.1 and R.sup.2 each represent an unsubstituted or substituted alkyl group or an unsubstituted or substituted alkenyl group or R.sup.1 and R.sup.2 may form a hetero ring together with nitrogen atom.Type: GrantFiled: June 18, 1987Date of Patent: October 24, 1989Assignee: Fuji Photo Film Co., Ltd.Inventors: Takatoshi Ishikawa, Morio Yagihara
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Patent number: 4873180Abstract: The addition to an aqueous alkaline developer composition for silver halide photographic materials of a dialkylaminomethane diphosphonic acid compound sequestering agent increases the resistance of the developer composition against aerial oxidation and inhibits calcareous deposit formation.Type: GrantFiled: April 6, 1988Date of Patent: October 10, 1989Assignee: Minnesota Mining and Manufacturing CompanyInventors: Carlo Marchesano, Franco Buriano, Enrico Furlanetto
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Patent number: 4863830Abstract: A process for hard tone development of a silver halide photographic light-sensitive material is described, comprising developing an imagewise exposed negative type silver halide photographic light-sensitive material in the presence of hydrazine, usig a developing solution comprising (1) a developing agent, (2) 0.25 mol/l or more of sulfite and (3) a compound represented by the general formula (I) and having a pH value of 10.5 to 12.3: ##STR1## wherein R.sub.1 and R.sub.2 represent each an alkyl group of R.sub.1 and R.sub.2 may form a ring by linking each other, R.sub.3 represents an alkyl group, an aryl group or a heterocyclic group, and R.sub.1, R.sub.2 and R.sub.3 may have substituents, A represents an alkylene group which may be substituted, and X represents --CONH--, --OCONH--, --NHCONH--, --NHCOO--, --COO--, --OCO--, --CO--, --NHCO--, --SO.sub.2 NH--, --NHSO.sub.2 --, --SO.sub.2 --or --O--.Type: GrantFiled: July 29, 1988Date of Patent: September 5, 1989Assignee: Fuji Photo Film Co., Ltd.Inventors: Eiichi Okutsu, Kazumi Watase
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Patent number: 4863836Abstract: There is provided a method for processing a silver halide color photographic material which comprises processing the silver halide color photographic material with a color developer containing an aromatic primary amine color developing agent and a specific amino compound. According to this method the stability and color forming property of a color developer are improved so that the increased fogging problem in continuous processing is lessened and the processing time is shortened. There is also provided a color developer composition which can be used as the developer, as it is or after adjusting its composition.Type: GrantFiled: February 22, 1988Date of Patent: September 5, 1989Assignee: Fuji Photo Film, Co., Inc.Inventors: Takatoshi Ishikawa, Nobutaka Ohki, Morio Yagihara
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Patent number: 4859574Abstract: A process for stabilizing the magenta dye image in a photographic color element comprises the steps of contacting the element with an aqueous stabilizing solution containing a water-soluble N-methylol compound and an alkaline buffering agent, subjecting the stabilized element to an aqueous wash to remove scum formed by the treatment with the stabilizing solution, and drying the element at an elevated temperature.Type: GrantFiled: March 15, 1988Date of Patent: August 22, 1989Assignee: Eastman Kodak CompanyInventor: Thomas M. Gormel
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Patent number: 4855218Abstract: A method for processing silver halide photographic lightsensitive material in which there are used replenishers for water washing and/or stabilization processes in such manner that the concentrations of calcium and magnesium compounds present in the replenishers are not more than 5 mg/l on the basis of elemental calcium and magnesium respectively, and a part or whole of the overflow from the water washing and/or stabilization process is introduced into a process preceding the water washing and/or stabilization processes. This method makes it possible to save water, to diminish the amount of waste liquor and to make effective use of components contained in processing solutions, without impairing any properties of lightsensitive materials to be processed.Type: GrantFiled: February 10, 1988Date of Patent: August 8, 1989Assignee: Fuji Photo Film Co., Ltd.Inventors: Yoshihiro Fujita, Akira Abe
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Patent number: 4851325Abstract: A process for processing silver halide color photographic materials, which comprises processing, after image-wise exposure, a silver halide color photographic material with a color developer containing an aromatic primary amine color developing agent and a compound represented by the following general formula (I): ##STR1## wherein n represents an integer of at least 1; R represents a hydrogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group, a substituted or unsubstituted heterocyclic group or the n-valent groups corresponding to the groups when n represents an integer of at least 2; and A represents an organic group containing a carbon atom, an oxygen atom, a nitrogen atom, or a sulfur atom and forms a saturated or unsaturated 3- to 8-membered ring with the nitrogen atom, said A is substituted or unsubstituted and may be condensed with a benzene ring or a heterocyclic ring.Type: GrantFiled: December 30, 1988Date of Patent: July 25, 1989Assignee: Fuji Photo Film Co., Inc.Inventors: Kiyoshi Morimoto, Hideaki Naruse
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Patent number: 4849333Abstract: A method is disclosed for the processing of an imagewise exposed silver halide color photographic material, wherein at least one of wash water and a stabilizing solution used in a step subsequent to a bleach-fixing step or a fixing step following a bleaching step contains at least one compound represented by formula (I) ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4, and R.sub.5 each represents a hydrogen atom, a halogen atom, an alkyl group, a substituted alkyl group, an acyl group, a hydroxy group, an amino group, a nitro group, a carboxy group, or a sulfo group.Type: GrantFiled: April 18, 1988Date of Patent: July 18, 1989Assignee: Fuji Photo Cilm Co., Ltd.Inventor: Yoshihiro Fujita
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Patent number: 4842993Abstract: A method for processing a silver halide color photographic material is described, which comprises treating said material after imagewise exposure with a color developer containing an aromatic primary amine developing agent and at least one compound represented by formula (I) ##STR1## in which X.sub.1 and X.sub.2 each represents a divalent organic group. In accordance with this method, the stability and color-forming capacity of the color developer are remarkably improved, the increment of fog during continuous processing of photographic material is greatly reduced, and the color developer need not substantially contain benzyl alcohol.Type: GrantFiled: March 4, 1988Date of Patent: June 27, 1989Assignee: Fuji Photo Film Co., Ltd.Inventors: Morio Yagihara, Hiroshi Fujimoto, Takatoshi Ishikawa, Kazuto Andoh
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Patent number: 4839263Abstract: A silver halide photographic material containing a support and, provided thereon, at least one silver halide emulsion layer, this silver halide emulsion layer containing silver halide grains containing 90 mol % or more of silver chloride, a dye-forming coupler, and a compound represented by general formula [S]; ##STR1## wherein Q is a group of atoms necessary to complete a 5- or 6-membered heterocyclic ring or a 5- or 6-membered ring fused with a benzene ring and M is a hydrogen atom, an alkali metal or an ammonium group;the silver halide layer having been hardened by a hardener represented by formula [HDA] or [HDB]; ##STR2## wherein Rd.sub.Type: GrantFiled: July 29, 1987Date of Patent: June 13, 1989Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: Masanobu Miyoshi, Makoto Kajiwara, Kaoru Onodera, Eiichi Sakamoto
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Patent number: 4837139Abstract: There are disclosed a processing solution of a light-sensitive silver halide color photographic material, which comprises containing a compound represented by the formula (I) shown below, and a processing method of the same, which comprises subjecting a light-sensitive silver halide color photographic material having at least one layer of silver halide emulsion layer on a support to imagewise exposure and then applying processing including at least a color developing processing, characterized in that the color developing solution to be used in the color developing processing contains a compound represented by the formula (I) shown below: ##STR1## wherein R.sub.1 represents an alkyl group having 1 to 5 carbon atoms substituted with an alkoxy group, and R.sub.2 represents a hydrogen atom, an alkyl group having 1 to 5 carbon atoms or an alkyl group having 1 to 5 carbon atoms substituted with an alkoxy group, and R.sub.1 and R.sub.2 may be bonded with each other to form a ring containing an oxygen atom.Type: GrantFiled: July 24, 1987Date of Patent: June 6, 1989Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: Kazuhiro Kobayashi, Shigeharu Koboshi, Satoru Kuse, Masao Ishikawa
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Patent number: 4835092Abstract: A novel method for processing a silver halide color photographic material is provided, which comprises processing a silver halide color photographic material having at least one silver halide emulsion layer on a reflective support with a color-developing solution substantially free of benzyl alcohol and containing at least one compound represented by formula (I) ##STR1## wherein R.sub.1 represents a hydrogen atom, --CH.sub.2 COOH, or ##STR2## R.sub.2 represents a hydrogen atom or --COOH; n represents an integer of 0 or 1; and Z represents atoms necessary for the formation of an aromatic ring.Type: GrantFiled: February 17, 1987Date of Patent: May 30, 1989Assignee: Fuji Photo Film Co., Ltd.Inventors: Takatoshi Ishikawa, Toshio Koshimizu, Yoshihiro Fujita, Hiroshi Fujimoto
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Patent number: 4833068Abstract: A developing solution composition for a silver halide color photographic material is described, comprising an aromatic primary amine color developing agent and a 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 a substituted or unsubstituted alkyl group; R.sup.3 represents a substituted or unsubstituted alkylene group; and the total number of carbon atoms contained in R.sup.1, R.sup.2 and R.sup.3 is at least 3.The color developer composition has improved stability and color forming properties and remarkably limits fog formation during continuous processing.Type: GrantFiled: July 21, 1987Date of Patent: May 23, 1989Assignee: Fuji Photo Film Co., Ltd.Inventors: Nobutaka Ohki, Kazuto Andoh, Hiroshi Fujimoto
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Patent number: 4820623Abstract: A method for processing a silver halide color photographic material comprising a support having thereon at least one silver halide emulsion layer and containing a magenta dye forming coupler represented by formula (I) shown below and a compound represented by formula (II) shown below in the same layer is described, wherein the silver halide color photographic material is subjected to color development using a replenisher for a color developing solution, whose concentration of bromide is not more than 3.times.10.sup.-3 mol per liter and the amount of the replenisher for a color developing solution is not more than 900 ml per m.sup.2 of the silver halide color photographic material, wherein ##STR1## wherein R.sub.1 represents an aromatic group, an aliphatic group or a heterocyclic group; R.sub.2 represents a substituent; Za, Zb, Zc and Zd, which may be the same or different, each represents an unsubstituted methine group, a substituted methine group or --N.dbd.; and formula (II) is represented by(R'--COO.sup.Type: GrantFiled: February 3, 1988Date of Patent: April 11, 1989Assignee: Fuji Photo Film Co., Ltd.Inventors: Toshio Koshimizu, Keiji Mihayashi
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Patent number: 4814260Abstract: A method of storing a liquid color developer and a liquid bleach-fixer in a container made of plastic material having an oxygen permeation coefficient of 0 to 50 m/(m.sup.2 atm day) at temperatures of 20.degree. C. and relative humidity of 60%. The developer contains an aromatic primary amine color developing agent; a hydroxylamine of the formula ##STR1## wherein R.sup.1 and R.sup.2 are hydrogen or alkyl having 1 to 3 carbon atoms, provided that at least one of R.sup.1 and R.sup.2 is an unsubstituted alkyl group having 1 to 3 carbon atoms and that R.sup.1 and R.sup.2 may be combined with each other to form a ring; and an alkaline ingredient for adjusting the pH of the developer to not less than 9.5. The bleach-fixer contains a ferric aminopolycarboxylate, 0 to 1.times.10.sup.-3 mols per liter of an aminopolycarboxylic acid based on the total bleach-fixer, a thiosulfate, and 1.times.10.sup.-3 to 2.times.10.sup.-1 mol per liter of said liquid bleach-fixer of a sulfite.Type: GrantFiled: June 16, 1987Date of Patent: March 21, 1989Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: Shigeharu Koboshi, Kazuyoshi Miyaoka, Masahiko Kon
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Patent number: 4810623Abstract: A process for developing a photographic material containing on a support an image-wise exposed silver halide emulsion layer of which the silver halide is substantially silver chloride and in which the photographic material before its exposure contains already at least one silver halide developing agent in a hydrophilic colloid binder in waterpermeable relationship with the silver halide, said process containing the step of contacting the exposed photographic material with an aqueous alkaline liquid, called activator liquid, being initially substantially free from developing agent(s), said contacting being not followed by a silver complex diffusion transfer processing, characterized in that said aqueous alkaline liquid contains a primary and/or secondary amine.Type: GrantFiled: February 18, 1988Date of Patent: March 7, 1989Assignee: Agfa-Gevaert N.V.Inventors: Hendrik E. Kokelenberg, Benedictus J. Jansen
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Patent number: 4801516Abstract: There is provided a method of processing a silver halide color photographic material which comprises processing the silver halide color photographic material with a color developer containing an aromatic primary amine color developing agent and a specific hydroxylamine compound. According to this method the stability of a color developer is improved so that the increased fogging problem in continuous processing is lessened and the processing time is shortened.Type: GrantFiled: June 24, 1987Date of Patent: January 31, 1989Assignee: Fuji Photo Film Co., Ltd.Inventors: Takatoshi Ishikawa, Morio Yagihara
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Patent number: 4801521Abstract: A method for processing a silver halide color photographic material comprising the step of processing a silver halide color photographic material after imagewise exposure thereof with a color developer containing at least one aromatic primary amine developing agent and at least one hydrazine compound represented by formula (I) ##STR1## wherein R.sup.1, R.sup.2, R.sup.3, and R.sup.4, which may be the same or different, each represents a hydrogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkenyl group, a substituted or unsubstituted aryl group, or a substituted or unsubstituted heterocyclic group, provided that R.sup.1 and R.sup.2 may be linked to form a heterocyclic ring; R.sup.3 and R.sup.4 may be linked to form a heterocyclic ring; and at least two hydrazine moieties derived from the compound represented by formula (I) may be linked to form a dimer or polymer by any of R.sup.1, R.sup.2, R.sup.3, and R.sup.4.Type: GrantFiled: July 22, 1987Date of Patent: January 31, 1989Assignee: Fuji Photo Film Co., Ltd.Inventors: Nobutaka Ohki, Nobuo Seto, Hideaki Naruse, Morio Yagihara, Kazuto Andoh, Takatoshi Ishikawa, Hiroshi Fujimoto
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Patent number: 4800153Abstract: There is provided a method for processing a silver halide color photographic material which comprises processing the silver halide color photographic material with a color developer containing an aromatic primary amine color developing agent and a specific amino compound. According to this method the stability and color forming property of a color developer are improved so that the increased fogging problem in continuous processing is lessened and the processing time is shortened. There is also provided a color developer composition which can be used as the developer, as it is or after adjusting its composition.Type: GrantFiled: July 17, 1987Date of Patent: January 24, 1989Assignee: Fuji Photo Film Co., Ltd.Inventors: Kiyoshi Morimoto, Takatoshi Ishikawa
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Patent number: 4798783Abstract: A method of processing a silver halide color photographic material in which the color developer used comprises an aromatic primary amine color developing agent and a compound of formula: ##STR1## wherein X represents a trivalent group necessary to complete a condensed ring;R.sup.1 and R.sup.2 each represents an alkylene group, an arylene group, an alkenylene group, or an aralkylene group;and, if desired, does not contain a substantial amount of benzyl alcohol to achieve improved stability and color developability of the color developer and a reduction of fog generation in the running development process.Type: GrantFiled: November 6, 1987Date of Patent: January 17, 1989Assignee: Fuji Photo Film Co., Ltd.Inventors: Takatoshi Ishikawa, Hiroshi Fujimoto, Nobutaka Ohki, Morio Yagihara
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Patent number: 4786583Abstract: 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 and an alkanolamine. 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.Type: GrantFiled: June 22, 1987Date of Patent: November 22, 1988Assignee: Eastman Kodak CompanyInventor: Paul A. Schwartz
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Patent number: 4775612Abstract: A method for processing a silver halide color photographic material is disclosed, wherein a washing bath is replenished with water in an amount of from 2 to 50 times the volume of the preceding bath which is carried over with the photographic material into the washing bath per unit area of the photographic material to be processed, and washing in the washing bath is carried out in the presence of at least one compound represented by formula (I): ##STR1## wherein A represents a n-valent aliphatic, aromatic or heterocyclic linking group, wherein when n is 1, A represents a monovalent aliphatic, aromatic, or heterocyclic group, or a hydrogen atom; X represents --O--, --S--, or ##STR2## R.sup.1 and R.sup.2 each represents substituted or unsubstituted lower alkyl group; R.sup.3 represents a lower alkylene group; R.sup.4 represents a lower alkyl group; or R.sup.1 and R.sup.2, R.sup.1 and A, R.sup.1 and R.sup.3, R.sup.2 and A, or R.sup.2 and R.sup.Type: GrantFiled: December 8, 1986Date of Patent: October 4, 1988Assignee: Fuji Photo Film Co., Ltd.Inventors: Akira Abe, Jun Arakawa, Yasushi Nozawa
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Patent number: 4758498Abstract: A processing composition for use in color diffusion transfer photograph is disclosed, comprising a compound represented formula (I): ##STR1## wherein R.sup.1 and R.sup.2 each represents an unsubstituted or substituted alkyl group, an unsubstituted or substituted aryl group, or R.sup.1 and R.sup.2 together form a ring; M represents a hydrogen atom, an alkali metal, an alkaline earth metal, or ammonium; and Y represents a sulfonyl or carbonyl group.Type: GrantFiled: October 14, 1986Date of Patent: July 19, 1988Assignee: Fuji Photo Film Co., Ltd.Inventors: Toru Harada, Shigeru Nakamura, Hiroshi Tanabe