Containing Additive Patents (Class 430/429)
  • Patent number: 5633124
    Abstract: This invention provides a process for removal of silver halide from a silver halide photographic recording material by a processing solution with fixing ability (a fixer) containing thiosulfate as a fixing agent conducted in the presence of a thioether compound incorporated within a fixer formulation. It further provides a fixer formulation for use in said process. The fixer contains a maximum ammonium ion concentration of 0.9M.
    Type: Grant
    Filed: October 20, 1994
    Date of Patent: May 27, 1997
    Assignee: Eastman Kodak Company
    Inventors: Eric R. Schmittou, Jacob J. Hastreiter, Jr., Stuart T. Gordon
  • Patent number: 5578432
    Abstract: A stabilizing bath that provides image stability and uniform drainage of excess fluid to prevent drying spots and that reduces or eliminates the formation of residue on the base side of color negative films is comprised of hexamethylenetetramine, a nonionic polyethoxylated surfactant, and an anionic sulfate or sulfonate surfactant. The stabilizing bath is used as the final processing bath prior to drying. The nonionic surfactant provides uniform drainage of excess fluid and the anionic sulfate or sulfonate surfactant functions to reduce or eliminate the formation of residue on the base side of color negative films.
    Type: Grant
    Filed: March 21, 1996
    Date of Patent: November 26, 1996
    Assignee: Eastman Kodak Company
    Inventors: Hugh G. McGuckin, John S. Badger, Michael W. Orem
  • Patent number: 5576151
    Abstract: A processing solution for a silver halide color photographic material, said solution containing at least one kind of compound represented by formula (I) or (III): ##STR1##
    Type: Grant
    Filed: April 21, 1995
    Date of Patent: November 19, 1996
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Masakazu Morigaki, Hiroshi Kawamoto, Shigeru Nakamura
  • Patent number: 5552264
    Abstract: A conditioning or bleach accelerating solution can be used to process color photographic films, especially color reversal films, to minimize magenta dye fade while reducing the needed amount of formaldehyde stabilizer. This solution is provided in highly concentrated form and diluted up to 9:1 prior to or during use. The concentrate contains a formaldehyde precursor at 200 to 450 g/l, a sulfite at from 40 to 100 g/l, a bleach accelerating agent at 1.5 to 13.5, and a metal ion chelating agent at 5 to 45 g/l.
    Type: Grant
    Filed: April 5, 1995
    Date of Patent: September 3, 1996
    Assignee: Eastman Kodak Company
    Inventors: Ann M. Cullinan, Charles M. Darmon, Rosa P. Sauter, Charles F. Leith
  • Patent number: 5534396
    Abstract: A photographic rinse composition has been developed which reduces jamming in the processing of photographic print materials and prevents biological growth on and leaching of materials from the print materials. This composition includes a vinyl pyrrolidone polymer, at least about 0.02 g/l of a biocide mixture comprising 5-chloro-2-methyl-4-isothiazolin-3-one and 2-methyl-4-isothiazolin-3-one, and at least about 0.02 g/l of an alkyl ether sulfate surfactant. Cupric ion can also be included to stabilize the biocide mixture.
    Type: Grant
    Filed: November 9, 1994
    Date of Patent: July 9, 1996
    Assignee: Eastman Kodak Company
    Inventors: Hugh G. McGuckin, Jerel R. Carli, John S. Badger, Stephen J. Waffle
  • Patent number: 5529890
    Abstract: A stabilizing bath that provides image stability and uniform drainage of excess fluid to prevent drying spots and that reduces or eliminates the formation of residue on the base side of color negative films is comprised of hexamethylenetetramine, a nonionic polyethoxylated surfactant, and an anionic sulfate or sulfonate surfactant. The stabilizing bath is used as the final processing bath prior to drying. The nonionic surfactant provides uniform drainage of excess fluid and the anionic sulfate or sulfonate surfactant functions to reduce or eliminate the formation of residue on the base side of color negative films.
    Type: Grant
    Filed: March 28, 1995
    Date of Patent: June 25, 1996
    Assignee: Eastman Kodak Company
    Inventors: Hugh G. McGuckin, John S. Badger, Michael W. Orem
  • Patent number: 5523195
    Abstract: A conditioning or bleach accelerating solution can be used to process color photographic films, especially color reversal films, to minimize magenta dye fade while reducing the needed amount of formaldehyde stabilizer. These advantageous effects are achieved by including a secondary amine in the solution along with a formaldehyde precursor and a bleach accelerator.
    Type: Grant
    Filed: February 23, 1995
    Date of Patent: June 4, 1996
    Assignee: Eastman Kodak Company
    Inventors: Charles M. Darmon, Michael P. Youngblood, Rosa P. Sauter
  • Patent number: 5518868
    Abstract: To eliminate the "pi-line" artefact after processing a silver halide industrial photographic X-ray material is disclosed comprising on at least one side of a support, at least one gelatino silver halide emulsion layer and a total amount of silver halide, corresponding to from 6 to 20 g of silver nitrate per square meter and per side, and at least one non-sensitive protective antistress coating, wherein said photographic material comprises at least one vinyl sulphone compound as a hardening agent and at least one polyoxyalkylene compound as a surfactant in at least one of its hydrophilic layers.
    Type: Grant
    Filed: August 8, 1995
    Date of Patent: May 21, 1996
    Assignee: Agfa-Gevaert, N.V.
    Inventors: Raymond Florens, Pieter Perdieus, Andre Roefs
  • Patent number: 5510232
    Abstract: Certain cationic hydroquinones are useful catalysts for persulfate bleaching agents in photographic processing methods. These compounds are oxidizable by persulfate and reducible by silver metal at a pH of from 1 to 7, and have a chemically reversible redox couple of from about -0.20 to about +1.5 volts. The persulate bleaching ability is enhanced by the presence of these compounds which are used in a step prior to bleaching.
    Type: Grant
    Filed: December 22, 1994
    Date of Patent: April 23, 1996
    Assignee: Eastman Kodak Company
    Inventor: Terrence R. O'Toole
  • Patent number: 5508150
    Abstract: A method of processing an image wise exposed and developed silver halide photographic element comprising bleaching the photographic element in a bleaching or bleach-fixing solution containing as the primary bleaching agent a complex of ferric ion and a tridentate or a tetradentate ligand, and then processing the photographic element in a solution containing a chelating compound represented by Formula IHOOC(CH.sub.2).sub.m (X) ((CH.sub.2).sub.n COOH).sub.2 (I)whereX is N, or C--OH;n and m are independently 0, 1, or 2; andM is a cationic ion.
    Type: Grant
    Filed: December 29, 1993
    Date of Patent: April 16, 1996
    Assignee: Eastman Kodak Company
    Inventors: Mary E. Craver, Janet M. Huston, Robert J. Opitz
  • Patent number: 5508421
    Abstract: A pyrrolotriazole azomethine dye represented by formula (I), (II) or (IV) is disclosed: ##STR1## Also, a heat transfer dye providing material is disclosed, in which the material includes a support having thereon a dye providing layer containing a heat migrating dye, with the dye providing layer containing at least one pyrrolotriazole azomethine dye represented by any of the above formulae (I), (II) and (IV).
    Type: Grant
    Filed: July 22, 1994
    Date of Patent: April 16, 1996
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Makoto Suzuki, Hisashi Mikoshiba, Seiiti Kubodera, Osamu Takahashi, Yasuhiro Shimada, Koushin Matsuoka, Shigeru Yamazaki, Katsuyoshi Yamakawa, Kozo Sato
  • Patent number: 5451491
    Abstract: A method of desilvering an imagewise and developed color silver halide element, said method comprising bleaching the photographic element with a peracid bleach and subsequently contacting the photographic element with a fixer solution comprising thiosulfate anion and sodium cation;wherein the Molar-minute fixing Time is less than about 0.2 Molar-minutes.times.m.sup.2 /g Ag.times.the grams of incorporated silver per square meter of the photographic element.
    Type: Grant
    Filed: February 22, 1994
    Date of Patent: September 19, 1995
    Assignee: Eastman Kodak Company
    Inventors: Richard P. Szajewski, John M. Buchanan
  • Patent number: 5449593
    Abstract: A processing solution for a silver halide color photographic material, said solution containing at least one kind of compound represented by formula (I), (II), or (III); ##STR1## the substituents are defined in the instant specification.
    Type: Grant
    Filed: February 21, 1992
    Date of Patent: September 12, 1995
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Masakazu Morigaki, Hiroshi Kawamoto, Shigeru Nakamura
  • Patent number: 5447817
    Abstract: To eliminate the "pi-line" artefact after processing a method of image formation in a silver halide industrial X-ray photographic material is disclosed wherein said material comprises on at least one side of a support, at least one gelatino silver halide emulsion layer and a total amount of silver halide, corresponding to from 6 to 20 g of silver nitrate per square meter and per side, and at least one non-sensitive protective antistress coating and wherein said method proceeds by the steps of exposing said material to direct X-rays and processing the material in an automatic processing machine by development, fixing, rinsing and drying, characterized in that said material further comprises at least one vinyl sulphone compound as a hardening agent in at least one of its hydrophilic layers, that development occurs in a developer comprising as a surfactant at least one anionic alkylphenoxy and/or alkoxy polyalkyleneoxy phosphate ester, sulphate ester, alkyl carboxylic, sulphonic or phosphonic acid and/or a salt
    Type: Grant
    Filed: April 5, 1994
    Date of Patent: September 5, 1995
    Assignee: AGFA-Gevaert, N.V.
    Inventors: Raymond Florens, Pieter Perdieus, Peter Willems, Freddy Henderickx
  • Patent number: 5441852
    Abstract: A method of processing a silver halide color photographic material by exposing the material to light, color developing, processing with a solution having a fixing function and thereafter, stabilizing the material. The stabilizing processing solution is one in for replacing formaldehyde in known processing solutions. The compound that replaces the formaldehyde is a meta substituted benzaldehyde. A method of using the processing solution is also disclosed.
    Type: Grant
    Filed: May 4, 1994
    Date of Patent: August 15, 1995
    Assignee: Konica Corporation
    Inventors: Moeko Hagiwara, Hiroaki Kobayashi
  • Patent number: 5424177
    Abstract: Disclosed is a stabilizer for silver halide color photographic light-sensitive materials comprising-at least one compound represented by Formula (I) and at least one compound selected from the group consisting of Formula (II-A), Formula (II-B) and Formula (II-C); ##STR1## wherein Z represents a group of atoms necessary to form a substituted or unsubstituted homocycle or a substituted or unsubstituted heterocycle, X represents an aldehyde group, ##STR2## wherein R.sub.1 and R.sub.2 each represents a lower alkyl group; 1 represents an integer of 1 to 4, ##STR3## wherein R.sub.1 and R.sub.2 each represent a hydrogen atom or a lower alkyl group, X.sub.1 and X.sub.2 each represent an alkyleneoxy group or a branched alkyleneoxy group, m and n each represents 0 or an integer of 1 to 100, provided that m+n.ltoreq.100 is satisfied, R.sub.3, R.sub.4, R.sub.5 and R.sub.6 each represents a hydrogen atom, a hydroxyl group, a lower alkyl group, an alkoxyl group, a halogen atom or a hydroxyalkyl group.
    Type: Grant
    Filed: June 26, 1992
    Date of Patent: June 13, 1995
    Assignee: Konica Corporation
    Inventors: Hiroaki Kobayashi, Kenji Kuwae, Moeko Hagiwara
  • Patent number: 5424176
    Abstract: A fixing solution having a pH.gtoreq.7 and comprising a fixing amount of sulfite and a fix accelerating amount of a thioether compound; wherein the fixing solution contains less than 0.05 moles/liter of thiosulfate and a method of processing an imagewise exposed and developed silver halide photographic element comprising fixing in said fixing solution a silver halide photographic element containing at least one emulsion or deposit of silver halide comprising greater than 90 mole % silver chloride.
    Type: Grant
    Filed: November 9, 1993
    Date of Patent: June 13, 1995
    Assignee: Eastman Kodak Company
    Inventors: Eric R. Schmittou, Therese M. Feller, Stuart T. Gordon
  • Patent number: 5415979
    Abstract: A composition of stabilizer for processing silver halide photographic material is disclosed. The composition comprises a fluorinated anionic surfactant represented by Formula I; ##STR1## wherein Rf is an alkyl group having a fluorine atom, an alkenyl group having a fluorine atom or an alkinyl group having a fluorine atom; X is a sulfonamido group, a ##STR2## group or a ##STR3## group, in which Rf' is a saturated or unsaturated hydrocarbon group having a fluorine atom; Y is alkyleneoxide or alkylene; A is an --S.sub.3 M group, an --OSO.sub.3 M group, a --COOM group, an --OPO.sub.3 (M.sub.1) (M.sub.2) group or a --PO.sub.3 (M.sub.1) (M.sub.2) group, in which M, M.sub.1 and M.sub.2 are each a hydrogen atom, a lithium atom, a potassium atom, a sodium atom or an ammonium group; m is 0 or 1 and n is 0 or an integer of 1 to 10.
    Type: Grant
    Filed: July 21, 1994
    Date of Patent: May 16, 1995
    Assignee: Konica Corporation
    Inventors: Koji Takemura, Hiroaki Kobayashi
  • Patent number: 5401621
    Abstract: A process for processing an imagewise exposed silver halide photographic material comprising a support having thereon at least one light-sensitive silver halide emulsion layer, comprising the steps of developing in a developing bath and processing in a bath having a fixing ability, wherein the bath having the fixing ability contains at least one mesoionic compound represented by formula (I): ##STR1## In a second embodiment, a process is disclosed for processing an imagewise exposed silver halide color photographic material comprising a support having thereon at least one light-sensitive silver halide emulsion layer, comprising the steps of subjecting the material to color development, and then subjecting the material to blix in a blix bath, wherein the blix bath contains at least one mesoionic compound represented formula (III) or (IV): ##STR2##
    Type: Grant
    Filed: August 2, 1991
    Date of Patent: March 28, 1995
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Tetsuro Kojima, Nobuo Watanabe
  • Patent number: 5395742
    Abstract: 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: Grant
    Filed: May 16, 1994
    Date of Patent: March 7, 1995
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Yasuaki Deguchi, Toshiaki Kubo
  • Patent number: 5391466
    Abstract: 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: Grant
    Filed: November 22, 1993
    Date of Patent: February 21, 1995
    Assignee: Konica Corporation
    Inventors: Yutaka Ueda, Kenji Kuwae
  • Patent number: 5380626
    Abstract: 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: Grant
    Filed: April 6, 1993
    Date of Patent: January 10, 1995
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Koichi Nakamura, Yoshiharu Yabuki
  • Patent number: 5362609
    Abstract: Disclosed is a stabilizing solution for a light-sensitive silver halide color photographic material, comprises a compound represented by the following Formula F, and has a pH of from 7.5 to 10.0; ##STR1## wherein Z represents a group of atoms necessary to form a substituted or unsubstituted cyclic hydrocarbon or heterocyclic ring, X represents an aldehyde group, ##STR2## wherein R.sub.1 and R.sub.2 each represent a lower alkyl group. The stabilizing solution and the processing method for a light-sensitive silver halide color photographic material according to this invention, can provide a processing technique that can achieve a superior stability of dye images, can better prevent backside deposits, can promise superior solution stability, and can better prevent yellow staining.
    Type: Grant
    Filed: January 26, 1994
    Date of Patent: November 8, 1994
    Assignee: Konica Corporation
    Inventors: Kenji Kuwae, Hiroaki Kobayashi, Moeko Hagiwara
  • Patent number: 5362882
    Abstract: A novel pyrrolotriazole derivative is disclosed, represented by any one of formulae (I), (II), (III), (IV), or (V): ##STR1## A heat transfer dye providing material is also disclosed, comprising a support having thereon a dye providing layer containing a heat migrating dye, said dye providing layer containing at least one pyrrolotriazole azomethine dye represented by any one of formulae (I), (II), (III), or (IV).
    Type: Grant
    Filed: June 5, 1992
    Date of Patent: November 8, 1994
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Makoto Suzuki, Yasuhiro Shimada, Koushin Matsuoka, Shigeru Yamazaki, Katsuyoshi Yamakawa, Kozo Sato
  • Patent number: 5334493
    Abstract: A photographic processing solution for processing a silver halide color photographic light-sensitive material and a processing method using the same is disclosed. The photographic processing solution comprises formaldehyde and an amine compound having at least one --NH-- group in the --NH-- equivalent amount per liter of the photographic processing solution being greater than the molar concentration of formaldehyde in the photographic processing solution. The photographic processing solution is stable and has a reduced formaldehyde vapor pressure. The processing method provides excellent image stability.
    Type: Grant
    Filed: September 29, 1993
    Date of Patent: August 2, 1994
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Yoshihiro Fujita, Masakazu Morigaki, Hiroshi Kawamoto, Shigeru Nakamura, Morio Yagihara, Hiroyuki Watanabe
  • Patent number: 5298370
    Abstract: 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: Grant
    Filed: May 13, 1992
    Date of Patent: March 29, 1994
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Tetsuro Kojima, Hisashi Okada, Nobuo Watanabe
  • Patent number: 5298373
    Abstract: Silver halide black-and-white photosensitive material is processed with a fixer which contains 0.5 to 2.0 mol/liter of a thiosulfate and 0.003 to 0.3 mol/liter of a meso-ionic compound, the moles of the meso-ionic compound divided by the moles of the thiosulfate being from 0.003 to 0.2. The fixer accelerates fixing speed, enabling rapid processing of photographic material.
    Type: Grant
    Filed: December 6, 1991
    Date of Patent: March 29, 1994
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Senzo Sasaoka, Katsumi Hayashi, Kota Fukui, Tetsuro Kojima
  • Patent number: 5296338
    Abstract: The present invention relates to photographic processing, and specifically discloses the use of ethyl bis (polyethoxy ethanol) alkyl ammonium ethyl sulfate as the effective ingredient in an anti-static additive for photographic processing. The effective ingredient is combined with isopropanol and water in the ratio of 8 oz./2 oz./118 oz. (per gallon) to provide the desired anti-static coating to the photographic negatives.
    Type: Grant
    Filed: June 24, 1993
    Date of Patent: March 22, 1994
    Inventor: John A. Chester
  • Patent number: 5278033
    Abstract: Disclosed is a stabilizing solution for a light-sensitive silver halide color photographic material, comprises a compound represented by the following Formula I, and has a surface tension of from 15 to 60 dyne/cm at 20.degree. C.; ##STR1## wherein Z represents a group of atoms necessary to form a substituted or unsubstituted cyclic hydrocarbon or heterocyclic ring, X represents an aldehyde group, ##STR2## wherein R.sub.1 and R.sub.2 each represent a lower alkyl group. The stabilizing solution and the processing method for a light-sensitive silver halide color photographic material according to this invention, can provide a processing technique that can achieve a superior stability of dye images, can better prevent backside deposits, can promise superior solution stability, and can better prevent yellow staining.
    Type: Grant
    Filed: March 20, 1992
    Date of Patent: January 11, 1994
    Assignee: Konica Corporation
    Inventors: Moeko Hagiwara, Ichiro Tsuchiya, Tsuyoshi Haraguchi
  • Patent number: 5272044
    Abstract: Disclosed is a silver halide photographic material comprising a compound represented by the general formula (I), (II), or a salt thereof or a compound represented by the general formula (III), with these groups being defined as in the specification: ##STR1## also disclosed is a method for the processing of a silver halide photographic material, which comprises processing a silver halide photographic material in the presence of a compound represented by the general formula (I) or (II) or a salt thereof or a compound represented by the general formula (III).
    Type: Grant
    Filed: August 31, 1992
    Date of Patent: December 21, 1993
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Junji Nishigaki, Akihiko Ikegawa, Masaki Okazaki, Minoru Yamada, Nobuhiko Uchino
  • Patent number: 5246822
    Abstract: The present invention is directed to a method of processing imagewise exposed photographic color silver halide materials in which, after the dye image is formed, the photographic material is treated with an aqueous stabilizing solution containing iodide ions but no fixing agent.
    Type: Grant
    Filed: August 3, 1992
    Date of Patent: September 21, 1993
    Assignee: Eastman Kodak Company
    Inventors: Gareth B. Evans, John R. Fyson, Peter D. Marsden
  • Patent number: 5232821
    Abstract: Photographic coupler compositions comprise (a) a magenta dye-forming coupler compound, and (b) a sulfoxide compound or a sulfone compound in an amount sufficient to improve the light stability of a magenta dye formed from the magenta dye-forming coupler compound. The sulfoxide compound is of the formula ##STR1## and the sulfone compound is of the formula ##STR2## wherein R.sub.1 and R.sub.
    Type: Grant
    Filed: April 1, 1991
    Date of Patent: August 3, 1993
    Assignee: Eastman Kodak Company
    Inventors: Paul B. Merkel, Edward Schofield
  • Patent number: 5225320
    Abstract: Method of processing a silver halide color photosensitive material which comprises the steps of a developing process, a bleach-fixing solution or a fixing solution, and then, without washing with water, treated with a stabilizing solution. The method is characterized in that the silver halide color photo sensitive material comprises a high boiling point organic solvent having a dielectric constant of 3.5 or more and the stabilizing solution comprises silicone having the surface tension 20 to 60.
    Type: Grant
    Filed: April 22, 1992
    Date of Patent: July 6, 1993
    Assignee: Konishiroku Photo Industry Co., Ltd.
    Inventors: Satoru Kuse, Shigeharu Koboshi
  • Patent number: 5194368
    Abstract: The present invention relates to a method for processing a silver halide photographic light-sensitive material having at least one silver halide emulsion layer containing silver iodide with a processing solution having fixing ability after developing the light-sensitive material. The object of the present invention is to speed up the fixing process in the foregoing method and to reduce the amount of waste liquor from the fixing process. The present invention is characterized in that the processing with the processing solution having fixing ability is performed while the processing solution is brought into contact with an anion-exchange resin and that 20 to 2,000 l of the processing solution per liter of the anion-exchange resin is brought into contact with the resin.
    Type: Grant
    Filed: September 6, 1989
    Date of Patent: March 16, 1993
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Shinji Ueda, Tetsuro Kojima, Tohru Kitahara, Tomokazu Yasuda, Yoshihiro Fujita, Takatoshi Ishikawa
  • Patent number: 5183727
    Abstract: A method of processing a color negative photographic recording material containing tabular grain silver halide emulsion units wherein the fixing agent comprises an aqueous solution of thiosulfate with low ammonium concentration. The silver halide emulsion in at least one of the units comprises grains having a tabularity of between about 50 and 25,000. The photographic recording material has a silver coverage of less than about 7.0 g/m.sup.2, and an iodide coverage of less than about 0.35 g/m.sup.2. The fixing bath has an ammonium concentration of less than about 1.2 molar, and ammonium may be absent entirely.
    Type: Grant
    Filed: August 19, 1991
    Date of Patent: February 2, 1993
    Assignee: Eastman Kodak Company
    Inventors: Eric R. Schmittou, Allan F. Sowinski
  • Patent number: 5110716
    Abstract: A stabilizing solution for processing silver halide photographic light-sensitive materials and a processing method of silver halide photographic light-sensitive materials using the stabilizing solution are disclosed. The stabilizing solution contains a polyoxyalkylene type compound and a compound selected from triazine type compounds and methylol type compounds.
    Type: Grant
    Filed: April 23, 1990
    Date of Patent: May 5, 1992
    Assignee: Konica Corporation
    Inventors: Satoru Kuse, Shigeharu Koboshi, Moeko Hagiwara
  • Patent number: 5108879
    Abstract: A method for the processing of a silver halide photographic material is provided, which comprises the steps of;developing a silver halide photographic material which has been previously exposed to light,processing the developed silver halide photographic material with a bath which contains a thiosulfate and which has a fixing ability, andsubsequently subjecting the developed silver halide photographic material to washing and/or stabilizing in a multi-stage countercurrent process, wherein the multi-stage countercurrent process includes a reverse osmosis membrane and a washing solution and/or stabilizing solution, said solution containing at least one member selected from the group consisting of a sulfinic acid, a sulfinate and a carbonyl compound-bisulfurous acid addition product.
    Type: Grant
    Filed: July 25, 1990
    Date of Patent: April 28, 1992
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Akira Abe, Shinji Ueda
  • Patent number: 5098805
    Abstract: There is provided a color photograph improved in preservability that has been obtained by making chemically inactive the aromatic amine type color developing agents and their oxidized product that remains in the silver halide photographic materials after color development processing. The color photograph exhibits excellent performance in that its white background can be prevented from discoloring even during long-term storage or display, and deterioration of a dye image caused by the remaining color developing agent being taken into the photographic material after the color development, bleaching, and fixing processes, or due to its oxidized product, can be prevented.
    Type: Grant
    Filed: March 19, 1990
    Date of Patent: March 24, 1992
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Nobuo Furutachi, Osamu Takahashi, Masakazu Morigaki
  • Patent number: 5068164
    Abstract: The present invention provides a developer for making a lithographic printing plate by silver complex diffusion transfer process which contains a hydroxyaryl fatty acid. This hydroxyaryl fatty acid preferably has the formula: ##STR1## wherein R.sub.1 represents a straight chain alkyl group of 1-19 carbon atoms and R.sub.2 represents a straight chain alkylene group of 1-19 carbon atoms with a proviso that sum of carbon atoms of R.sub.1 and R.sub.2 is 10-20 and R.sub.3 and R.sub.4 each represents a hydrogen atom, a hydroxyl group or an alkyl or alkoxy group of 1-9 carbon atoms.
    Type: Grant
    Filed: March 27, 1990
    Date of Patent: November 26, 1991
    Assignee: Mitsubishi Paper Mills, Limited
    Inventors: Toshiro Kondo, Hidetoshi Miura
  • Patent number: 5063131
    Abstract: A method for processing a silver halide color photographic photosensitive material comprises treating a silver halide photographic material with a bath having fixing ability and then washing with water and/or stabilizing the photosensitive material and characterized in that the amount of replenisher for water washing or stabilization is controlled so that it is 1 to 50 times the volume of liquid carried over by the photosensitive material processed from the bath preceding the water washing bath or the stabilization bath and that the photosensitive material comprises, for instance, compounds (13): ##STR1## The method makes it possible to substantially keep the image performance of the photosensitive material processed high while substantially saving the amount of washing water or the stabilization liquid and substantially shortening the water washing or the stabilization time.
    Type: Grant
    Filed: June 22, 1990
    Date of Patent: November 5, 1991
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Akira Abe, Yoshihiro Fujita, Keiji Mihayashi
  • Patent number: 5037725
    Abstract: A process for stabilizing the magenta dye image in a photographic color element comprises the step of treating the element after the step of color developing and prior to the step of bleaching or bleach-fixing with an aqueous solution that has a pH in the range of 7 to 10 and contains an effective amount of an alkali metal formaldehyde bisulfite.
    Type: Grant
    Filed: December 11, 1989
    Date of Patent: August 6, 1991
    Assignee: Eastman Kodak Company
    Inventors: Ann M. Cullinan, Charles M. Darmon, William G. Henry, Paul A. Schwartz
  • Patent number: 5026629
    Abstract: A fixing bath and a method of fixing wherein the bath contains an imidazole compound that facilitates the removal of thiosulfate from the film in addition to reducing the presence of stain in the resulting film.
    Type: Grant
    Filed: February 7, 1990
    Date of Patent: June 25, 1991
    Assignee: Eastman Kodak Company
    Inventors: Hugh G. McGuckin, Michael G. Blount, Paul Schwartz, Donald F. McLaen, James L. Lyon
  • Patent number: 5006440
    Abstract: A silver image produced by imagewise exposure, development and fixing of a photographic material containing at least one silver halide emulsion layer is stabilized by being subjected after fixing to treatment by a stabilizing bath containing a compound corresponding to general formula IR.sub.1 --(NHCO--R.sub.2 --R.sub.3).sub.m (I)in whichR.sub.1 represents a nitrogen-containing 5- or 6-membered heterocycle,R.sub.2 represents an optionally branched C.sub.1-8 alkylene radical,R.sub.3 represents Cl or Br andm=1 or 2.
    Type: Grant
    Filed: September 21, 1990
    Date of Patent: April 9, 1991
    Assignee: Agfa-Gevaert Aktiengesellschaft
    Inventors: Werner Berthold, Hans hlschlager
  • Patent number: 5006456
    Abstract: 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: Grant
    Filed: June 6, 1988
    Date of Patent: April 9, 1991
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Masakazu Morigaki, Takatoshi Ishikawa, Kazuto Andoh, Nobuo Seto, Toshio Koshimizu, Shinji Ueda
  • Patent number: 4987058
    Abstract: 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: Grant
    Filed: June 13, 1990
    Date of Patent: January 22, 1991
    Assignee: Agfa-Gevaert Aktiengesellschaft
    Inventors: Erika Spriewald, Gustav Tappe, Heinz Meckl
  • Patent number: 4987059
    Abstract: Excellent image silver stability is obtained without intermediate washing after fixing and without a special finishing bath by a process for stabilizing a silver image produced by exposure, development and fixing of a photographic material containing at least one silver halide emulsion layer, in which, immediately after fixing, the photographic material is subjected to treatment by a stabilizing bath containing a compound corresponding to general formula (I) ##STR1## in which X=Cl, BrR.sup.1 =H, C.sub.1-4 alkyl, C.sub.6-10 aryl,R.sup.2 =CHO, COOH, COONa, CH.sub.2 COOH, CH.sub.2 COONa, CONR.sub.2.sup.3, CONHR.sup.3,R.sup.3 =H, C.sub.1-2 alkyl,and a compound corresponding to formula II ##STR2## and/or to formula III ##STR3## in which R.sup.3 and R.sup.4 may be the same or different and represent H, --NH.sub.2, alkyl, alkenyl, cycloalkyl, aryl, alkoxy, alkylthio, alkylsulfonyl, sulfamoyl, acyl, --SH or a heterocyclic group.
    Type: Grant
    Filed: November 17, 1989
    Date of Patent: January 22, 1991
    Assignee: Agfa-Gevaert Aktiengesellschaft
    Inventors: Werner Berthold, Helmut Haseler, Paul Marx, Heinz Meckl, Hans hischlager
  • Patent number: 4980272
    Abstract: A method of processing a photosensitive material with a final processing solution is disclosed. The photosensitive material comprises at least one compound selected from the group consisting of compounds represented by the following Formulas (AI-I), (AI-II), (AI-III), (AI-IV) and (BS-I), a concentration of a soluble iron salt in the final processing solution is at least 5.times.10.sup.-3 /l and a processing time of the final processing solution is not more than 30 seconds.
    Type: Grant
    Filed: July 12, 1989
    Date of Patent: December 25, 1990
    Assignee: Konica Corporation
    Inventors: Satoru Kuse, Shigeharu Koboshi, Masao Ishikawa
  • Patent number: 4963474
    Abstract: A method of processing a silver halide color photographic material in which the material is, after color-developed, processed in a bath having bleaching ability and then in a bath having fixing ability, wherein a bleaching agent in the bath having bleaching ability is at least one iron(III) complex of an aminopolycarboxylic acid of the following formula (I) and the bath having fixing ability contains at least one organic phosphonic acid: ##STR1## wherein n represents 3, 4 or 5, and is preferable 3.
    Type: Grant
    Filed: February 13, 1989
    Date of Patent: October 16, 1990
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Yoshihiro Fujita, Shinji Ueda, Takatoshi Ishikawa, Akira Abe
  • Patent number: 4948710
    Abstract: A method of continuously processing an imagewise exposed silver halide color photographic light-sensitive material is described, in which subsequent to a bleach-fixing step or bleaching and fixing steps the material is washed in a water washing step in the presense of at least one compound represented by general formula (I): ##STR1## wherein M is a hydrogen atom, a lithium atom, a sodium atom, a potassium atom or an ammonium ion and each M may be the same or different.This method permits great reduction of the amount of water used in the washing step in the processing of silver halide color photographic light-sensitive materials.
    Type: Grant
    Filed: July 17, 1989
    Date of Patent: August 14, 1990
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Takatoshi Ishikawa, Shinzo Kishimoto
  • Patent number: H953
    Abstract: A method for processing a silver halide color photographic material which comprises the steps of, after color-developing, processing the silver halide color photographic material with a bleaching bath, and then processing with a fixing bath, wherein the bleaching bath has a pH value of from 2.5 to 5.5 and contains a (1,3-diaminopropane-tetraacetato)iron(III) complex salt in an amount of at least 0.2 mol/liter and an organic acid in an amount of at least 0.5 mil/liter, and the fixing bath contains at least one compound selected from formulae (I), (II), (III), (IV), and (V):R.sup.1 --(X--R.sup.3).sub.m --X--R.sup.2 (I)wherein m represents 0 or an integer of from 1 to 4; R.sup.1 and R.sup.2 each represents a substituted or unsubstituted alkyl group; R.sup.3 represents a substituted or unsubstituted alkylene group, provided that when m is 2 or more, the R.sup.3 groups in each of the (X--R.sup.3) segments may be the same or different; and X represents sulfur, oxygen, ##STR1## wherein Z represents ##STR2## --OR.
    Type: Grant
    Filed: August 4, 1989
    Date of Patent: August 6, 1991
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Masatoshi Goto, Kiyoshi Morimoto, Haruhiko Iwano