Bleach Or Intensification Patents (Class 430/461)
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Patent number: 5409804Abstract: A Photographic processing composition and a processing method using the same, wherein the composition contains a compound represented by formula (I) or a chelating compound of Fe(III) , M.sub.n (III), Co(III), Rh(II), Rh(III), Au(II), Au(III) or Ce(IV) and a compound represented by formula (I); ##STR1## wherein X.sub.1, X.sub.2, and X.sub.3 each represents a hydrogen atom, --L--COOM, or ##STR2## at least one of X.sub.1, X.sub.2, and X.sub.3 represents ##STR3## represents a carbon atomic group necessary for forming an aryl group; R.sub.1 represents a hydrogen atom or a substituent group; R.sub.2 represents an alkyl group, an alkoxy group, an acrylamino group, an alkylsulfonylamino group, an arylsulfonylamino group, a ureido group, an alkoxycarbonylamino group, an aryloxycarbonylamino group, a sulfamoyl group, a carbamoyl group, an alkylthio group, an alkylsulfonyl group, an arylsulfonyl group, an alkylsulfinyl group, an arylsulfinyl group, a hydroxy group, a halogen atom, a cyano group, --SO.sub.3 M.sup.Type: GrantFiled: January 24, 1994Date of Patent: April 25, 1995Assignee: Fuji Photo Film Co., Ltd.Inventors: Tadashi Inaba, Hisashi Okada, Hiroyuki Seki
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Patent number: 5409805Abstract: A solid processing agent for a silver halide photographic light-sensitive material is disclosed, which comprises a compound represented by the following Formula (I): ##STR1## wherein R.sub.1 represents a halogen atom, an alkyl group or an alkenyl group, provided that a plural of R.sub.1 's may be the same or different; R.sub.2 represents a halogen atom, an alkyl group, an alkenyl group or an alkoxy group; R.sub.3 represents a lower alkyl group, provided that R.sub.1, R.sub.2 and R.sub.3 may be the same or different, m and n each represent an integer of 0 to 5; and X represents an anion.Type: GrantFiled: July 14, 1994Date of Patent: April 25, 1995Assignee: Konica CorporationInventors: Tsuyoshi Haraguchi, Hiroaki Kobayashi
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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: 5384233Abstract: Disclosed is a photographic processing chemicals kit comprising a processing agent and a flexible container formed of multilayer film. The chemicals kit provide a photographic processing chemicals packaging material capable of protecting the photographic processing characteristics of its content against any storage conditions accompanied by a high temperature or vibration.Type: GrantFiled: June 7, 1993Date of Patent: January 24, 1995Assignee: Konica CorporationInventors: Satoru Kuse, Hiroaki Kobayashi, Tsuyoshi Haraguchi, Hiroshi Yamashita
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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: 5380629Abstract: This invention provides a process for preparing a bleach accelerator silver salt dispersion by precipitating a salt of a bleach accelerating compound and a silver salt wherein the vAg is maintained at a predetermined level during the precipitation. This invention further provides a photographic element containing a dispersion of grains of a bleach accelerator silver salt wherein the grains are isomorphic or derived from needle or platelet isomorphic crystals.Type: GrantFiled: March 30, 1993Date of Patent: January 10, 1995Assignee: Eastman Kodak CompanyInventor: Benjamin T. Chen
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Patent number: 5366853Abstract: A tablet-shaped bleaching agent for preparing a bleaching solution for color silver halide photographic materials is disclosed, along with the method of making it, the method of using it to prepare a bleaching solution, and the method of processing a color silver halide photographic material using a replenishing solution made from the tablet as a bleaching solution. The tablet has a bulk density of 1.00 to 3.00 g/cm.sup.3, and a total ammonium content of no more that 50 mol % of the total cation content in the tablet. The tablet comprises a ferric complex salt of a compound represented by Formula (L) and an organic polyacid according to Formula (C). In Formula (L), A.sub.1-4 each represent --CH.sub.2 OH, --COOM, or --PO.sub.3 M.sub.1 M.sub.2, and X represents a substituted or unsubstituted alkylene group of 3-6 carbon atoms. In Formula (C), A.sub.5 represents an organic group, and n is an integer of not less than 2. ##STR1## Formula (C) A.sub.5 --(COOM).sub.Type: GrantFiled: November 9, 1993Date of Patent: November 22, 1994Assignee: Konica CorporationInventor: Hiroshi Yoshimoto
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Patent number: 5354647Abstract: The invention provides a bleach fix agent comprising a dilute solution of an alkaline metal or ammonium thiosulphite or a mixture thereof and iron (III) EDTA together with a soluble sulphite. The invention is characterized in that the soluble sulphite is present in an excess of the amount required for stabilization whereby the sulphite can be sacrificially destroyed by oxidizing agents in use thereby to neutralize the oxidizing effects upon the thiosulphate. The invention is particularly suitable for "RX" processes and results in the possibility of eliminating the stop-bath without allowing staining of the photographic material to occur.Type: GrantFiled: July 22, 1992Date of Patent: October 11, 1994Assignee: Eastman Kodak CompanyInventor: John R. Fyson
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Patent number: 5352568Abstract: A processing method for silver halide color photographic material and a bleaching solution used in the processing are disclosed. Sufficient desilvering in a short time and prevention of bleaching fogging can be obtained by the process. The process is applicable for silver-rich high-sensitivity color light-sensitive material. The bleaching solution comprises a of a ferric complex salts of compounds represented by the following Formula A or B in an amount of at least 0.01 mol per liter of the bleaching solution and a buffer agent capable of adjusting pH value to 3 to 7; and pH value of the bleaching solution is held within the range of from 3 to 7; ##STR1## wherein A.sub.1 through A.sub.4 are each --CH.sub.2 OH, --COOM, or --PO.sub.3 M.sub.1 M.sub.2 ; M, M.sub.1 and M.sub.3 are each a hydrogen atom, a sodium atom, a potassium atom or an ammonium group; X is a substituted or unsubstituted alkylene group having three to six carbon atoms; B.sub.1 and B.sub.Type: GrantFiled: August 11, 1993Date of Patent: October 4, 1994Assignee: Konica CorporationInventors: Satoru Kuse, Masao Ishikawa, Shigeharu Koboshi, Masayuki Kurematsu
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Patent number: 5352567Abstract: A novel method for processing a silver halide color photographic material which comprises color developing an imagewise exposed silver halide color photographic material and then processing the material with a having a bleaching ability containing at least one bleaching agent a ferric complex of a compound represented by at least one of formula (I) and formula (II): ##STR1## wherein W.sup.1 represents an alkylene group containing 3 or less carbon atoms in total; L.sup.1, L.sup.2, L.sup.3 and L.sup.4 each represents an alkylene or arylene group; and M.sub.1 to M.sub.6 each represents a hydrogen atom or a cation; ##STR2## wherein W.sup.2 represents an alkylene group having 2 to 8 carbon atoms, an arylene group having 6 to 10 carbon atoms, cyclohexane group, ##STR3## (in which W.sup.21 and W.sup.22 each represents an alkylene group, and m represents an integer of 1 to 3, and A represents a hydrogen atom, hydrocarbon group, --L.sub.A --COOM, --L.sub.A --PO.sub.3 M.sub.2, --L.sub.A --OH or --L.sub.A --SO.sub.Type: GrantFiled: September 22, 1992Date of Patent: October 4, 1994Assignee: Fuji Photo Film Co., Ltd.Inventors: Hisashi Okada, Tadashi Inaba, Morio Yagihara
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Patent number: 5350668Abstract: A method for processing a silver halide color photographic material comprising a support having thereon at least one silver halide emulsion layer which comprises subjecting the silver halide color photographic material to imagewise exposure and color development, and then processing with a processing solution having bleaching ability, wherein the silver halide emulsion layer contains silver halide grains having a composition such that tabular silver iodobromide grains having an aspect ratio of not higher than 3 account for at least 50% of the entire projected area of the silver halide grains, and the processing solution having bleaching ability contains as a bleaching agent an iron (III) complex salt of a compound having the described structural formula, used in a concentration of 0.01 to 0.17 mol/liter.Type: GrantFiled: April 28, 1993Date of Patent: September 27, 1994Assignee: Fuji Photo Film Co., Ltd.Inventors: Akira Abe, Hiroyuki Seki, Hisashi Okada, Tadashi Inaba
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Patent number: 5338649Abstract: A process for bleaching or bleach-fixing an imagewise exposed silver halide photographic material is provided, comprising developing in a color developing solution and bleaching or bleach-fixing in a processing composition having a bleaching capacity containing as a bleaching agent a metal chelate compound of a chelate-forming compound or salt thereof and a metal ion selected from the group consisting of Fe(III), Mn(III), Co(III), Rh(II), Rh(III), Au(II), Au(III) and Ce(IV), the chelate-forming compound or salt thereof is represented by formula (I): ##STR1## wherein G.sub.1 and G.sub.2 each represents a carboxyl group, a phosphono group, a sulfo group, a hydroxyl group, a mercapto group, an aryl group, a heterocyclic group, an alkylthio group, an amidino group, a guanidino group or a carbamoyl group; L.sub.1, L.sub.2 and L.sub.Type: GrantFiled: September 14, 1993Date of Patent: August 16, 1994Assignee: Fuji Photo Film Co., Ltd.Inventors: Tadashi Inaba, Hisashi Okada, Ryo Suzuki, Yasuhiro Katsuoka, Hiroyuki Seki
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Patent number: 5334491Abstract: Bleach compositions and methods that are improvements over those provided by Fyson, U.S. Pat. No. 4,294,914, are disclosed. A highly preferred bleach composition of this invention (a) has the ferric complex of methyliminodiacetic acid as a bleaching agent, and additionally comprises (b) at least 0.9 mole of acetic acid per liter, (c) from about 15 to about 35 grams per liter of potassium bromide; and (d) has a pH of from about 2.5 to about 4.0.This invention includes the discovery of a synergistic bleaching coaction of a bleach (i) comprising an alkyliminodiacetic acid such as methyliminodiacetic acid, and (ii) which has a pH of from about 3.5 to about 4.5 , and (iii) in which the amount of ferric iron is from about 2 to about 16 grams per liter. This coaction between iron levels and pH was previously unknown and was unexpected.Bleach formulations of this invention can be used in the processing of color photographic materials, such as film.Type: GrantFiled: September 22, 1993Date of Patent: August 2, 1994Assignee: Eastman Kodak CompanyInventors: David G. Foster, Keith H. Stephen, Mary E. Craver
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Patent number: 5318880Abstract: This invention provides a method of processing a negative color silver halide photographic element comprising taking an exposed color silver halide photographic element with a speed greater than ISO 180 or containing at least one spectrally sensitized silver halide emulsion with a tabularity greater than 100, wherein the photographic element comprises a total amount of incorporated silver and incorporated vehicle of 20 g/m.sup.2 film or less; developing the exposed photographic material; and bleaching the exposed, developed photographic element with a peracid bleach in the presence of a bleach accelerator.Type: GrantFiled: June 1, 1992Date of Patent: June 7, 1994Assignee: Eastman Kodak CompanyInventors: Daniel R. English, Richard P. Szajewski
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Patent number: 5316898Abstract: A solid composition for bleaching an exposed and developed silver halide color photographic light-sensitive material and processing method thereof. The composition contains at least one kind of ferric complex salt and is in the form of a tablet having a bulk density of 1.0 to 2.5 g/cm.sup.3. The composition provides excellent solubility and preservability.Type: GrantFiled: February 24, 1993Date of Patent: May 31, 1994Assignee: Konica CorporationInventors: Yutaka Ueda, Hiroshi Yamashita
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Patent number: 5300408Abstract: A method for processing a silver halide color photographic material, which comprises processing an imagewise exposed silver halide color photographic material with a processing solution containing at least one chelate compound of a metal salt selected from the group consisting of salts of Fe(III), Mn(III), Co(III), Rh(II), Rh(III), Au(II), Au(III) and Ce(IV) with an organic acid represented by following general formula (I): ##STR1## wherein Z represents a nonmetallic atom group required to form a heterocyclic group; R represents a substituent; n represents 0 or an integer of from 1 to 10; Q.sub.1, Q.sub.2 and Q.sub.3 each represents a hydrogen atom, an aliphatic hydrocarbon group substituted by a carboxyl group, an aromatic hydrocarbon group substituted by a carboxyl group or a heterocyclic group substituted by a carboxyl group; and W represents a divalent linkage group containing at least one of an alkylene group or an arylene group.Type: GrantFiled: December 14, 1992Date of Patent: April 5, 1994Assignee: Fuji Photo Film Co., Ltd.Inventors: Hisashi Okada, Tadashi Inaba
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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: 5270148Abstract: A processing solution for a silver halide color photographic material, wherein said solution contains at least one kind of a compound represented by formula (I) and at least one kind of a compound represented by formula (A); ##STR1## wherein X represents a nonmetallic atomic group necessary for forming a nitrogen-containing heteroaromatic ring; ##STR2## wherein X.sub.0 represents a non metallic atomic group necessary for forming a nitrogen-containing heteroaromatic ring; and R.sub.a and R.sub.b, which may be same or different, each represents an alkyl group or an alkenyl group and R.sub.a and R.sub.b may be bonded each other to form a 4- to 8-membered ring, and a method for processing a silver halide color photographic material with the above processing solution.Type: GrantFiled: April 29, 1992Date of Patent: December 14, 1993Assignee: Fuji Photo Film Co., Ltd.Inventors: Masakazu Morigaki, Shigeru Nakamura, Yoshihiro Fujita, Hiroshi Kawamoto
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Patent number: 5266449Abstract: A bleaching bath for processing of a color photographic silver halide material which contains the ferric complex of alaninediacetic acid as the bleaching agent and in a dye-stabilizing amount a formaldehyde precursor of the formula ##STR1## wherein X and Y denote the residual atoms of a hetero aromatic 5- or 6-membered ring,yields color photographic images with excellent dye-stabilizing. In the atmosphere above the stabilizing bath no formaldehyde is detectable.Type: GrantFiled: October 30, 1992Date of Patent: November 30, 1993Assignee: Agfa Gevaert AGInventors: Christa Dacke, Heinrich Odenwalder, Hans Langen
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Patent number: 5262285Abstract: A method for retouching a film image comprises applying an aqueous composition to the film image. The aqueous composition comprises from about 5 to about 300 g/l of an acid selected from the group consisting of sulfuric acid, hydrochloric acid, phosphoric acid, and mixtures thereof, from about 1 to about 100 g/l of at least one compound selected from the group consisting of ascorbic acid, oxalic acid, sulfite compounds, hydroxyl amine salts, iodide compounds, hypophosphite compounds, dithionite compounds, tin(II) compounds, and mixtures thereof, and a balance of water.Type: GrantFiled: May 4, 1992Date of Patent: November 16, 1993Assignee: Eastman Kodak CompanyInventors: Charles M. Darmon, William G. Henry, Mary C. Kelley
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Patent number: 5256531Abstract: A photographic processing composition containing at least one compound represented by formula (I) ##STR1## wherein R, R.sub.1 and R.sub.2 each represent a hydrogen atom, an alkyl group or an aryl group; and L.sub.1 represents an alkylene group or an arylene group. Also disclosed a processing composition for a silver halide color photographic material containing a metal chelate compound formed from a compound represented by formula (I) and a metal salt selected from salts of Fe(III), Mn(III), Co(III), Rh(II), Rh(III), Au(III), Au(II) and Ce(IV). A method is also disclosed for processing a silver halide photographic material with the processing compositions.Type: GrantFiled: June 25, 1992Date of Patent: October 26, 1993Assignee: Fuji Photo Film Co., Ltd.Inventors: Hisashi Okada, Shigeru Nakamura
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Patent number: 5254444Abstract: A photographic processing composition containing at least one compound represented by formula ##STR1## wherein R, R.sub.1 and R.sub.2 each represent a hydrogen atom, an alkyl group or an aryl group; and L.sub.1 represents an alkylene group or an arylene group. Also disclosed a processing composition for a silver halide color photographic material containing a metal chelate compound formed from a compound represented by formula (I) and a metal salt selected from salts of Fe(III), Mn(III), Co(III), Rh(II), Rh(III), Au(III), Au(II) and Ce(IV). A method is also disclosed for processing a silver halide photographic material with the processing compositions.Type: GrantFiled: June 25, 1992Date of Patent: October 19, 1993Assignee: Fuji Photo Film Co., Ltd.Inventors: Hisashi Okada, Shigeru Nakamura
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Patent number: 5250401Abstract: Disclosed is a method for processing a silver halide color photographic material, which comprises the steps of:image-wise exposing a silver halide color photographic material,color developing the image-wise exposed silver halide photographic material, andprocessing the color developed silver halide photographic material, in the presence of a processing composition containing a metal chelating compound formed by a compound represented by following formula (I) and a salt of a metal belonging to group Ib, IIb, IIIb,IVb, Vb, VIb, VIIb, or VIII of the Periodic Table: ##STR1## wherein Z represents a heterocyclic group; L represents a divalent linkage group; R.sub.11 and R.sub.12 each represents a hydrogen atom, an aliphatic group, an aromatic group, or a heterocyclic group; and n represents 0 or 1. Also disclosed is the processing composition used in the above method.Type: GrantFiled: July 30, 1991Date of Patent: October 5, 1993Assignee: Fuji Photo Film Co., Ltd.Inventors: Hisashi Okada, Morio Yagihara, Tadashi Inaba, Hiroyuki Seki
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Patent number: 5250402Abstract: A photographic processing composition for processing a silver halide photographic light-sensitive material. The composition contains at least one metal chelating compound formed from a metal salt of Fe(III) and a monoamine compound or salt thereof represented by formula (I-a') or (I-b'): ##STR1## wherein R represents a substituent; Q represents a group of non-metal atoms necessary to form a heterocyclic ring; X and Y each represents a carbon atom or a nitrogen atom; L.sub.1 ' and L.sub.2 ' each represents an alkylene group; M.sub.1, M.sub.2, M.sub.3 each represents a hydrogen atom or a cation; and u represents 0, 1, 2, 3, or 4.Type: GrantFiled: June 25, 1992Date of Patent: October 5, 1993Assignee: Fuji Photo Film Co., Ltd.Inventors: Hisashi Okada, Tadashi Inaba, Morio Yagihara
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Patent number: 5246821Abstract: A photographic bleaching solution for procesisng a silver halide color photographic material, comprising an iron(III) complex salt of an organic acid in a concentration of from 0.01 mol/l to less than 0.1 mol/l, at least 50 mol % of said iron(III) complex salt of an organic acid contained in the bleaching solution is an iron(III) complex salt of an organic acid having an oxidation-reduction potential of not lower than 200 mV determined by using a normal hydrogen electrode at pH 5.0 (excluding iron(III) complex salts of iminodiacetic acid and iron(III) complex salts of methyliminodiacetic acid), and an acid having a pKa of from 2 to 5.5 (excluding aminopolycarboxylic acids, salts thereof and iron complex salts of the aminopolycarboxylic acids) in a concentration of from 0.1 mol/l to 0.8 mol/l, and the concentration of ammonium ion in the bleaching solution is not higher than 0.3 mol/l. A method for processing a silver halide color photographic material using said bleaching solution.Type: GrantFiled: February 26, 1992Date of Patent: September 21, 1993Assignee: Fuji Photo Film Co., Ltd.Inventors: Akira Abe, Hiroyuki Seki
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Patent number: 5238791Abstract: A readily biodegradable bleaching bath having an adequate bleaching effect(1) contains an iron(III) complex salt in which at least 20 mol-% and preferably at least 80 mol-% of the complexing agent corresponds to formula (I) ##STR1## in which R.sub.1 is hydrogen or hydroxy,n is 1 or 2,x is 2 or 3 andy is 0 or 1and the sum of x and y is always 3, and(2) an excess of free complexing agent of 1 to 120 mol-% and preferably 5 to 20 mol-%, based on the iron complex or the iron complex salt, and(3) is adjusted to a pH value of .ltoreq.4.5.Type: GrantFiled: November 27, 1991Date of Patent: August 24, 1993Assignee: AGFA Gevaert AktiengesellschaftInventors: Gustav Tappe, Ralf Wichmann, Heinz Meckl
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Patent number: 5236814Abstract: A method for processing a silver halide color photographic light-sensitive material comprising a support having thereon a silver halide emulsion layer, comprising steps ofdeveloping said light-sensitive material with a color developerbleaching, after said developing step, said light-sensitive material with a bleaching solution, andtreating, after said bleaching step, said light-sensitive material with a solution having fixing capability, whereinsaid light-sensitive material has a coating weight of silver of not more than 1 g/m.sup.Type: GrantFiled: September 10, 1991Date of Patent: August 17, 1993Assignee: Konica CorporationInventors: Satoru Kuse, Shigeharu Koboshi
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Patent number: 5232822Abstract: A method for processing a light-sensitive silver halide color photographic material including color developing processing, and fixing. The bleaching is with a bleaching solution containing at least one of ferric complexes of the compounds represented by the formula (A) or (b) shown below and has a pH of 2.0 to 5.5. The fixing is with a processing solution having fixing ability and which contains at least one mole/liter of a thiosulfate. Said processing solution having fixing ability contains a compound selected from the group (FB). ##STR1## wherein A.sub.1 to A.sub.4 may be either the same or different, and each represent --CH.sub.2 OH, --COOM or --PO.sub.3 M.sub.1 M.sub.2 ; M, M.sub.1 and M.sub.2 each represent hydrogen atom, sodium atom, potassium atom or ammonium group; X represents a substituted or unsubstituted alkylene group having 3 to 6 carbon atoms, ##STR2## wherein A.sub.1 to A.sub.4 may be either the same or different and each represent --CH.sub.2 OH, --COOM or --PO.sub.3 M.sub.1 M.sub.2 ; M, M.Type: GrantFiled: July 17, 1991Date of Patent: August 3, 1993Assignee: Konica CorporationInventors: Masao Ishikawa, Shigeharu Koboshi
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Patent number: 5223379Abstract: A processing composition having a bleaching ability which is used for processing silver halide color photographic materials, and containing a metal chelate compound formed fromthe salt of a metal selected from the group consisting of Fe(III), Mn(III), Co(III), Rh(II), Rh(III), Au(II), Au(III) and Ce(IV), andat least one of a compound represented by formula (I) and a compound represented by formula (II): ##STR1## wherein L.sub.1 and L.sub.2 each represents ##STR2## X.sub.1 and X.sub.2 each represents an oxygen atom or a sulfur atom, R, R.sub.1, R.sub.2 and R.sub.3 each represents a hydrogen atom or an aryl or alkyl group which may be substituted, R.sub.4 represents an aryl or alkyl group which may be substituted, ##STR3## or --OR.sub.7, R.sub.5 and R.sub.6 each has the same meaning as R.sub.1, R.sub.7 represents an aryl or alkyl group which may be substituted, Y.sub.1 and Y.sub.2 each represents an arylene or alkylene group which may be substituted, R, L.sub.1 and L.sub.Type: GrantFiled: May 16, 1991Date of Patent: June 29, 1993Assignee: Fuji Photo Film Co., Ltd.Inventors: Hisashi Okada, Tadashi Inaba, Toshihiko Maekawa, Tsukasa Yamada, Hiroyuki Seki
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Patent number: 5210007Abstract: A color photographic element for use with a latent or silver image intensification or amplification method which incorporates a blocked color developing agent. The color photographic element includes at least one silver halide emulsion layer which includes at least about 70 mole percent chloride and has a concentration of silver within the range of about 0.1 mg/m.sup.2 to 2000 mg/m.sup.2. The blocked color developing agent is capable of being unblocked during photographic processing by means of reaction with a dinucleophile reagent. A preferred dinucleophile reagent is hydrogen peroxide, which also acts as an oxidant in the latent or silver image intensification method.Type: GrantFiled: December 19, 1991Date of Patent: May 11, 1993Assignee: Eastman Kodak CompanyInventors: John Texter, David Southby, Jared Mooberry, Roland Willis
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Patent number: 5200301Abstract: A color photographic recording material comprising at least one blue-sensitive silver halide emulsion layer containing at least one yellow coupler, at least one green-sensitive silver halide emulsion layer containing at least one magenta coupler, at least one red-sensitive silver halide emulsion layer containing at least one cyan coupler and, optionally, a silver halide emulsion layer with no color coupler, of which the silver halide coatings together, expressed as AgNO.sub.3, amount to no more than 0.8 g/m.sup.2 and of which the silver halides have a silver chloride component of at least 95 mol-%, characterized in that the silver halide coating of a silver halide emulsion layer containing a color coupler together with the silver halide coating of the silver halide emulsion layer with no color coupler, expressed as AgNO.sub.3, is from 0.2 to 0.6 g/m.sup.2 and the silver halide coating of all the other silver halide emulsion layers, expressed as AgNO.sub.3, amounts to no more than 0.2 g/m.sup.Type: GrantFiled: November 20, 1991Date of Patent: April 6, 1993Assignee: Agfa Gevaert AktiengesellschaftInventors: Kaspar Wingender, Wolfgang Schmidt
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Patent number: 5188927Abstract: A composition for the processing of a silver halide color photographic material, which comprises at least one metal chelate compound formed of a salt of metal selected from the group consisting of Fe(III), Mn(III), Co(III), Rh(II), Rh(III), Au(III), Au(II) and Ce(IV) and a compound represented by the general formula (I): ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.a, R.sub.b, and R.sub.c each represent a hydrogen atom, an aliphatic group or an aromatic group; R.sub.5 and R.sub.6 each represents a hydrogen atom, an aliphatic group, an aromatic group, a halogen atom, a cyano group, a nitro group, an acyl group a sulfamoyl group, a carbamoyl group, an alkoxycarbonyl group, an aryloxycarbonyl group, a sulfonyl group or a sulfinyl group, or R.sub.5 and R.sub.6 together may form a 5- or 6-membered ring; L.sub.1 represents a divalent aliphatic or aromatic group or a divalent linking group containing at least one of them; A.sub.Type: GrantFiled: June 14, 1991Date of Patent: February 23, 1993Assignee: Fuji Photo Film Co., Ltd.Inventors: Hisashi Okada, Seki Hiroyuki
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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: 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: 5139920Abstract: A reducer and a method for conducting dot etching processing using the reducer, the reducer comprising (1) an amino polycarboxylic acid ferric chelate compound having an oxidation-reduction potential of -100 mV or above, (2) a complexing agent, and (3) at least one member of the compounds represented by the following general formulae (IA) to (VIIA). ##STR1## All symbols are defined in the specification.Type: GrantFiled: July 3, 1991Date of Patent: August 18, 1992Assignee: Fuji Photo Film Co., Ltd.Inventors: Katsumi Hayashi, Morio Yagihara, Shinji Ueda, Yoshihiro Fujita, Toshihiko Maekawa, Kiyoshi Morimoto
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Patent number: 5135840Abstract: Photographic processing chemicals in the form of granulates having an average particle diameter of from 150 to 3000 .mu.m containing a polymer having a molar mass of from 6,000,000 to 14,000,000 in a quantity from 1 to 1,000 mg/kg of granulate consisting of at least 80 mol % of one or more of the monomers, acrylamide, acrylic acid and cationic monomer or mixtures of acrylamide and cationic or anionic monomer are distinguished by being easy to prepare, dust free and freely pourable.Type: GrantFiled: March 8, 1991Date of Patent: August 4, 1992Assignee: Agfa Gevaert AktiengesellschaftInventors: Karl-Heinz Reuter, Heinz Meckl
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Patent number: 5114835Abstract: A process for processing an imagewise exposed silver halide color photographic material with a processing solution having a bleaching ability after color development is disclosed, in which the silver halide color photographic material contains at least one compound capable of reacting with an oxidation product of a developing agent upon development to release a bleaching accelerator, and the processing solution having a bleaching ability contains (1) at least one ferric complex salt of a compound selected from the compound group (A) and (2) ferric complex salt of 1,3-diaminopropanetetraacetic acid as bleaching agents in such proportion that the molar ratio of the (1) to the (2) is 3 or less: compound group (A):A-1; ethylenediaminetetraacetic acidA-2; diethylenetriaminepentaacetic acidA-3; cyclohexanediaminetetraacetic acidA-4; 1,2-propylenediaminetetraacetic acid.Type: GrantFiled: February 21, 1989Date of Patent: May 19, 1992Assignee: Fuji Photo Film Co., Ltd.Inventor: Kei Sakanoue
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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: 5063140Abstract: A method for forming color photographic images is disclosed. The method comprises steps ofimagewise exposing to light a silver halide color photographic light-sensitive materialdeveloping the light-sensitive material with a color developer,bleaching, immediately after the step of developing, the light-sensitive material with a bleacing solution, andtreating the bleached light-sensitive material with a solution having fixing capablility, whereinthe light-sensitive material comprises a support and hydrophilic colloid layers including a silver halide emulsion layer provided on a side of the support, and a total dry thickness of the hydrophilic colloid layers is not more than 17 .mu.m, andthe bleaching solution contains a ferric complex salt of a compound represented by the following formula in an amount of within the range of from 0.002 mole to 9.4 mole per liter of the bleaching solution; ##STR1## wherein A.sub.1, through A.sub.4 are each a --CH.sub.2 OH group, a --COOM, or a --PO.sub.3 M.sup.1 M.sup.2.Type: GrantFiled: April 12, 1990Date of Patent: November 5, 1991Assignee: Konica CorporationInventors: Satoru Kuse, Masao Ishikawa, Shigeharu Koboshi, Minoru Ishikawa, Toshihiko Yagi
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Patent number: 5061608Abstract: An environmentally advantageous photographic bleaching solution for use in the color processing of photographic elements comprises (1) as a bleaching agent, a potassium salt of a ferric complex of an aminopolycarobxylic acid, (2) as an agent which functions to convert silver to silver halide, a potassium halide, and (3) as an agent which functions to inhibit bleach induced dye formation, a water-soluble aliphatic carboxylic acid. The bleaching solution is especially useful in the processing of photographic elements containing a low pKa, high-activity, yellow-dye-forming coupler in that it serves to effectively avoid the undesirable increase in blue D.sub.min that can occur in such elements as a result of bleach induced dye formation.Type: GrantFiled: April 19, 1991Date of Patent: October 29, 1991Assignee: Eastman Kodak CompanyInventors: David G. Foster, Keith H. Stephen
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Patent number: 5059514Abstract: The present invention relates to a method for bleaching a silver halide photographic light-sensitive material having at least one silver halide emulsion layer containing silver iodobromide after color-developing it. The object of the present invention is to speed up the bleaching treatment in the aforesaid method and to reduce the amount of waste liquor from the bleaching treatment. The present invention is characterized in that the bleaching is performed in the presence of a bleaching accelerator and that it is carried out while a bleaching solution is brought into contact with an anion-exchange resin.Type: GrantFiled: August 23, 1989Date of Patent: October 22, 1991Assignee: Fuji Photo Film Co., Ltd.Inventors: Shinji Ueda, Tetsuro Kojima, Tohru Kitahara, Tomokazu Yasuda, Yoshihiro Fujita, 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: 5053321Abstract: Color photographic bleaching agent containing, in the form of a granulate having an average particle diameter of from 150 to 3000 .mu.m, an iron (III) complex or an iron (III) complex salt and a rehalogenating agent is dust free and freely pourable, will keep indefinetely and dissolves in water at 25.degree. C. within 45 seconds to form a solution ready for use.Type: GrantFiled: June 13, 1990Date of Patent: October 1, 1991Assignee: AGFA Gevaert AktiengesellschaftInventor: Peter Kuhnert
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Patent number: 5039599Abstract: A method for processing a silver halide color photographic material is disclosed, comprising imagewise exposing the material and continuously processing the material in an automatic processor wherein the bleach-fixing bath contains(i) at least one organic acid ferric complex salt, and(ii) at least one sulfinic acid, and the open area value (X) of said bleach-fixing bath and the water washing bath during the processing is not more than 0.05 cm.sup.-1.Type: GrantFiled: September 28, 1989Date of Patent: August 13, 1991Assignee: Fuji Photo Film Co., LtdInventor: Shinji Ueda