Reversal Patents (Class 430/407)
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Patent number: 8227165Abstract: A receiver having an image side and a non-image side bent in a bend area including a bend axis. Toner is deposited on the image side of the receiver in the bend area using an electrophotographic print engine. The deposited toner is fused to the receiver. During or after fusing, the fused toner is heated to a selected fusing temperature greater than or equal to the Tg of the toner. A heat-shrinkable film is affixed to the heated toner after heating the toner, wherein the Tg of the film is greater than the Tg of the toner. The toner is cooled below its Tg after affixing the film. The bend area of the receiver is reheated after cooling the toner, so that the temperature of the heat-shrinkable film rises above its Tg, the heat-shrinkable film contracts, and the receiver bends at the bend axis.Type: GrantFiled: July 29, 2010Date of Patent: July 24, 2012Assignee: Eastman Kodak CompanyInventor: Dinesh Tyagi
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Publication number: 20040248050Abstract: The present invention relates to a concentrated solution for photographic reversal baths, and to a ready-to-use reversal solution, for limiting the growth of microorganisms and biofilm formation.Type: ApplicationFiled: April 22, 2004Publication date: December 9, 2004Inventors: Didier J Martin, Olivier J Poncelet
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Patent number: 6767676Abstract: The optical functional element contains aggregates of developed silver grains obtained by developing silver halide grains arranged so as to constitute a periodical structure. The element includes a substrate and a medium layer. The aggregates of the developed silver grains are arranged in the medium layer so as to constitute said periodical structure. The element is produced by first selectively exposing a photo-curing resin layer formed on said substrate in which the silver halide grains are dispersed so as to selectively photo-cure the photo-curing resin layer, then overall exposing the photo-curing resin layer to expose the silver halide grains in the photo-curing resin layer, and thereafter developing the photo-curing resin layer.Type: GrantFiled: March 26, 2003Date of Patent: July 27, 2004Assignee: Fuji Photo Film Co., Ltd.Inventor: Kimitoshi Nagao
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Patent number: 6645680Abstract: A silver halide color reversal photographic material comprising a layer capable of imparting interimage effects, this interimage effects imparting layer comprising a lightsensitive silver halide emulsion comprising silver halide grains satisfying the following conditions (i) to (iii). (i) The silver halide grains have an average silver iodide content of more than 6 to 39 mol %. (ii) Grains occupying 60% or more of a projected area of all the silver halide grains are those of triple or greater multiplicity structure having at least one layer of high silver iodide content, the silver iodide content being 8 mol % or more, which layer of high silver iodide content is one formed using silver in an amount of 15 to 80 mol % based on that used in obtaining final grains. (iii) All the silver halide grains have surfaces having an average silver iodide content of 10 mol % or less.Type: GrantFiled: March 18, 2002Date of Patent: November 11, 2003Assignee: Fuji Photo Film Co., Ltd.Inventors: Ryuji Abe, Minoru Sato
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Publication number: 20030186139Abstract: The optical functional element contains aggregates of developed silver grains obtained by developing silver halide grains arranged so as to constitute a periodical structure. The element includes a substrate and a medium layer The aggregates of the developed silver grains are arranged in the medium layer so as to constitute said periodical structure. The element is produced by first selectively exposing a photo-curing resin layer formed on said substrate in which the silver halide grains are dispersed so as to selectively photo-cure the photo-curing resin layer, then overall exposing the photo-curing resin layer to expose the silver halide grains in the photo-curing resin layer, and thereafter developing the photo-curing resin layer.Type: ApplicationFiled: March 26, 2003Publication date: October 2, 2003Applicant: FUJI PHOTO FILM CO., LTD.Inventor: Kimitoshi Nagao
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Publication number: 20030096201Abstract: The invention relates to a method for processing an exposed color reversal photographic film. This method comprises the step of circulating the exposed film in a fixing bath, in and then a final washing zone comprises at least one washing bath. Each washing bath of this zone comprising a buffer prepared from a weak acid and its conjugated base, with a conjugated base concentration more than 1 g/l, said buffer being chosen to maintain the pH between 4.5 and 6. The method comprises then the step of collecting the contents of the washing baths of this zone and the passage of said contents through a nanofiltration device comprising a membrane, whose cut-off threshold is more than the molar mass of the weak acid and the conjugated base making up the buffer, to give a permeate that is recycled in the final washing zone.Type: ApplicationFiled: July 18, 2002Publication date: May 22, 2003Applicant: Eastman Kodak CompanyInventor: Didier J. Martin
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Publication number: 20030044735Abstract: The invention relates to a method and device for processing an exposed colour reversal photographic film. This method enables the water consumption of the washing baths to be limited, the water levels being maintained by a counter-current coming from the bath placed downstream, an equivalent volume of water being discharged through an overflow. The wash waters are recovered and treated by a nanofiltration unit capable of giving a permeate which can be recycled to the washing baths. This method makes it possible to overcome the problem of the presence of tin (II) in the first washing bath supplied with water by a counter-current coming from the reversal bath. This process also makes it possible to overcome the problems of discharges of chemical substances to the drains while maintaining a good sensitometry of the developed films.Type: ApplicationFiled: July 29, 2002Publication date: March 6, 2003Inventors: Didier J. Martin, Cecile A. Maudhuit
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Publication number: 20020182548Abstract: A photographic prebleaching or conditioning composition is useful for providing color positive images in color reversal photographic materials. This composition includes at least 0.0001 mol/l of a cyclic mercapto bleach accelerating agent and at least 0.0001 mol/l of a water-soluble or water-dispersible 2,6-diarylaminotriazine or diaminostilbene dye stain reducing agent.Type: ApplicationFiled: February 13, 2001Publication date: December 5, 2002Applicant: Eastman Kodak CompanyInventors: Harry J. Price, Michael P. Youngblood, Ramanuj Goswami
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Publication number: 20020168595Abstract: A silver halide color photographic light-sensitive material containing at least one kind of a compound represented by formula (I): 1Type: ApplicationFiled: February 4, 2002Publication date: November 14, 2002Applicant: FUJI PHOTO FILM CO., LTD.Inventors: Masahiko Taniguchi, Naoto Matsuda
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Patent number: 6451518Abstract: The invention relates to a method and device for processing an exposed color reversal photographic film. This method enables the water consumption of the washing baths to be limited, the water levels being maintained by a counter-current coming from the bath placed downstream, an equivalent volume of water being discharged through an overflow. The wash waters are recovered and treated by a nanofiltration unit capable of giving a permeate which can be recycled to the washing baths. This method makes it possible to overcome the problem of the presence of tin (II) in the first washing bath supplied with water by a counter-current coming from the reversal bath. This process also makes it possible to overcome the problems of discharges of chemical substances to the drains while maintaining a good sensitometry of the developed films.Type: GrantFiled: February 20, 2001Date of Patent: September 17, 2002Assignee: Eastman Kodak CompanyInventors: Didier J. Martin, Cécile A. Maudhuit
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Publication number: 20020037482Abstract: A bleach or bleach/fixing solution for processing photographic silver halide materials which, relative to the silver halide content of the unprocessed material, exhibit prior to the bleaching step a content of silver arising from development of at least 65 mol %, in particular for processing color reversal materials, characterized in that the solution contains at least one iron complex of propylenediaminetetraacetic acid or of &bgr;-alaninediacetic acid or a mixture of these complexes and the total concentration of the stated iron complexes in the solution is at least 0.045 and at most 0.25 mol/l and a process for processing, in which such a solution is used, is characterized by a small introduced quantity of iron complexes, a low residual silver content, a low bleaching fog value, elevated resistance to precipitation and in that the bleach solution may be rejuvenated.Type: ApplicationFiled: August 1, 2001Publication date: March 28, 2002Inventors: Ralf Wichmann, Thomas Hubsch, Thomas Stetzer
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Publication number: 20020018956Abstract: This invention relates to packaged photographic film that is capable of being alternately processed, according to individual consumer choice, by either (1) a traditional wet-chemistry process with a developer solution followed by desilvering in one or more subsequent solutions to obtain a color negative film, or (2) a dry thermal process without the use of aqueous solutions in which a blocked developing agent located within the photographic element is thermally activated or unblocked, optionally followed by electronic scanning of the developed film without desilvering. This invention enables a single film stock to be developed in both a conventional deep tank process and in a dry thermal process.Type: ApplicationFiled: May 25, 2001Publication date: February 14, 2002Inventors: David H. Levy, James H. Reynolds, David T. Southby, Paul D. Zimmerman, Mark E. Irving
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Publication number: 20010031431Abstract: The invention relates to a method and device for processing an exposed color reversal photographic film. This method enables the water consumption of the washing baths to be limited, the water levels being maintained by a counter-current coming from the bath placed downstream, an equivalent volume of water being discharged through an overflow. The wash waters are recovered and treated by a nanofiltration unit capable of giving a permeate which can be recycled to the washing baths. This method makes it possible to overcome the problem of the presence of tin (II) in the first washing bath supplied with water by a counter-current coming from the reversal bath. This process also makes it possible to overcome the problems of discharges of chemical substances to the drains while maintaining a good sensitometry of the developed films.Type: ApplicationFiled: February 20, 2001Publication date: October 18, 2001Applicant: Eastman Kodak CompanyInventors: Didier J. Martin, Cecile A. Maudhuit
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Patent number: 6248511Abstract: Color reversal photographic films are processed using a reversal solution comprising stannous ion and a quaternary ammonium compound as the sole microbial control agent, to reduce formation of visible biogrowth. The quaternary ammonium compound is present at very low concentrations of 1 to 20 ppm, and is preferably myristyltrimethyl ammonium bromide because it avoids precipitates with components that may leach out of some processed films.Type: GrantFiled: May 10, 2000Date of Patent: June 19, 2001Assignee: Eastman Kodak CompanyInventors: John S. Badger, Mary E. Craver
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Patent number: 6180327Abstract: A conditioning solution or bleach accelerating solution can be used to process color photographic films, especially color reversal films, to minimize magenta dye fade. This solution contains an antimicrobial composition that consists essentially of a polyaminocarboxylic acid or salt thereof as the sole antimicrobial agent. This agent is present in an amount of less than about 3 g/l.Type: GrantFiled: April 5, 1995Date of Patent: January 30, 2001Assignee: Eastman Kodak CompanyInventors: Hugh Gerald McGuckin, John Stuart Badger, Mary Ellen Craver
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Patent number: 6162595Abstract: Photographic elements capable of forming a reversal image are disclosed comprising a support and, coated on said support, at least one image recording emulsion layer comprised of a dispensing medium and radiation sensitive silver halide grains and at least one substantially non-image forming layer. In one embodiment, the substantially non-image forming layer comprises: a) a light sensitive silver halide imaging emulsion which is less than 10 percent of the mass of the total imaging emulsion in the element; b) a first non-image forming silver salt emulsion having an average grain size less than 0.15 .mu.m; and c) a second non-image forming silver salt emulsion comprising iodide having an average grain size greater than that of the first non-image forming emulsion.Type: GrantFiled: November 23, 1999Date of Patent: December 19, 2000Assignee: Eastman Kodak CompanyInventor: Keath T. Chen
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Patent number: 6124082Abstract: Recovering the dye image on film in electronic film development following a latent holding stage obviates the problem common in prior art electronic film development of film image destruction. Recovery of the image is accomplished using a developing agent containing couplers to form a dye image. These dyes do not affect the infrared scans of the image. Upon complete development of the dye image, further dye formation is halted by the application of a coupler blocking agent, while silver development and electronic scanning may continue or halt. After halting dye formation, the film is stable for an arbitrary time in a latent stage and may be dried and stored. Following this latent stage, silver is removed from the film with a bleach-fix leaving a conventionally usable film image.Type: GrantFiled: April 14, 1999Date of Patent: September 26, 2000Assignee: Applied Science Fiction, Inc.Inventor: Albert D. Edgar
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Patent number: 6114104Abstract: A direct positive silver halide photographic light sensitive material is disclosed, having yellow, magenta and cyan image forming units, wherein at least one of the color image forming units contains at least two internal latent image forming silver halide emulsions which are different in a factor of contribution to image formation, a silver halide emulsion having a lower factor of contribution to image formation having a part common to sensitivity of a silver silver halide emulsion contained in one of the other two image forming units, and the photographic material is subjected to exposure, based on digitized image information.Type: GrantFiled: September 2, 1999Date of Patent: September 5, 2000Assignee: Konica CorporationInventors: Satoshi Masumi, Shigeo Tanaka
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Patent number: 6074805Abstract: Color reversal photographic films are processed using a reversal solution comprising stannous ion and a quaternary ammonium compound as the sole biocide, to reduce formation of biogrowth. The quaternary ammonium compound is present at very low concentrations of 1 to 20 ppm, and is preferably myristyltrimethyl ammonium bromide because it avoids precipitates with components that leach out of processed films.Type: GrantFiled: August 13, 1999Date of Patent: June 13, 2000Assignee: Eastman Kodak CompanyInventors: John S. Badger, Mary E. Craver
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Patent number: 5965322Abstract: There is disclosed a silver halide color photographic light-sensitive material that contains, in photographic constitutional layers on a support, a hydrazine-series reducing agent for color formation, and a phenol-series magenta coupler having an acylamino group at the 5-position, and/or a naphthol-series cyan coupler having an amido group at the 5-position. The light-sensitive material makes low-replenishment and low-discharge processing possible, and exhibits good color reproducibility and good color-forming property.Type: GrantFiled: February 18, 1997Date of Patent: October 12, 1999Assignee: Fuji Photo Film Co., Ltd.Inventors: Toshiyuki Makuta, Koki Nakamura, Kiyoshi Takeuchi
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Patent number: 5962203Abstract: A new fogging photographic processing solution for a reversal process comprises a compound (I) and a bi-nucleophilic agent. Compound (I) corresponds to the following formula: ##STR1## wherein A is a group capable of being adsorbed to the silver halide surface, L is a linking group and r is 0 or 1, R.sub.1 and R.sub.2 are independently selected from an alkyl group, substituted or unsubstituted, and an aryl group substituted or unsubstituted. A process of producing a positive image by imagewise exposure of a reversal silver halide material comprises contacting the material with the above fogging solution or by imagewise exposure of such a material containing a compound (I) and contacting the material with a solution comprising a bi-nucleophilic agent.Type: GrantFiled: August 6, 1998Date of Patent: October 5, 1999Assignee: Eastman Kodak CompanyInventors: Siu C. Tsoi, Peter J. Twist, David T. Southby
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Patent number: 5869224Abstract: In reversal processing, washing between the first development and the reversal bath can be avoided without any loss of photographic quality if the reversal bath is operated in countercurrent over at least two stages and hydroquinone sulfonic acid is used as the first developer.Type: GrantFiled: May 12, 1993Date of Patent: February 9, 1999Assignee: Agfa Gevaert AktiengesellschaftInventor: Herbert Mitzinger
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Patent number: 5846697Abstract: A photographic concentrate for preparing a color developer comprises benzyl alcohol, water and organic solvents. This concentrate can be part of a kit for preparing a color developer along with 2 other concentrated solutions.The noted concentrated solution comprises benzyl alcohol at between 25 and 35%, water at between 3 and 8%, ethylene glycol at between 10 and 20% and diethylene glycol at between 35 and 60%.Type: GrantFiled: July 14, 1997Date of Patent: December 8, 1998Assignee: Eastman Kodak CompanyInventor: Jean Pierre Masson
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Patent number: 5837432Abstract: A conditioning or bleach accelerating solution is prepared by diluting a concentrate up to 25 times. The concentrate contains a formaldehyde bisulfite precursor salt at from 200 to 600 g/l, sulfite ions at 0 to 200 g/l, a bleach accelerating agent at from 1.5 to 25 g/l, and a metal ion chelating agent present at up to 60 g/l. The concentrate is free of sodium ions.Type: GrantFiled: June 27, 1996Date of Patent: November 17, 1998Assignee: Eastman Kodak CompanyInventors: Jean Marie Buongiorne, Michael John Haight
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Patent number: 5811225Abstract: Color reversal photographic films are processed using a reversal solution comprising stannous ion and a quaternary ammonium compound as the sole biocide, to reduce formation of biogrowth.Type: GrantFiled: March 12, 1997Date of Patent: September 22, 1998Assignee: Eastman Kodak CompanyInventors: Hugh G. McGuckin, John S. Badger, Edgardo Lopez, Paul A. Schwartz
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Patent number: 5736302Abstract: A photographic reversal bath concentrate is formulated in such a manner as to avoid precipitates while including new biocides and excluding propionic acid. The concentrate is prepared by adding stannous ion nucleating agent to a solution of an organic phosphonic or phosphinic acid chelating agent, followed by addition of a quaternary ammonium compound as the sole biocide at a concentration of at least about 1 g/l. The quaternary ammonium compound has a molecular weight of from about 175 to about 440.Type: GrantFiled: March 12, 1997Date of Patent: April 7, 1998Assignee: Eastman Kodak CompanyInventors: Jean M. Buongiorne, Michael J. Haight
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Patent number: 5736299Abstract: A silver halide color photographic material is disclosed, wherein it comprises a support having thereon one or more constituent layers including at least one silver halide emulsion layer, wherein at least one hydrophilic colloid layer of said constituent layers contains a coupler represented by the following formula (M) or formula (I) and at least one hydrophilic colloid layer of said constituent layers contains a compound represented by the following formula (H): ##STR1##Type: GrantFiled: January 23, 1996Date of Patent: April 7, 1998Assignee: Fuji Photo Film Co., Ltd.Inventors: Toshiyuki Watanabe, Hiroshi Fukuzawa, Michio Ono, Takashi Nakamura
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Patent number: 5723263Abstract: A multicolor negative photographic element comprises a support bearing a blue light-sensitive silver halide emulsion first layer and a green light-sensitized silver halide emulsion second layer wherein said second layer contains a dye sensitized to green light and wherein said first layer has associated therewith a hue correction coupler which upon coupling with oxidized developer produces a dye having a maximum absorbance in the range of 460 to 510 nm. so that the element has a D480/D440 density ratio which is greater than that exhibited by the element without the hue correction coupler. The invention also encompasses a blue sensitive silver halide emulsion layer associated with the hue correction coupler and a method of forming an image in the photographic element of the invention.Type: GrantFiled: November 12, 1996Date of Patent: March 3, 1998Assignee: Eastman Kodak CompanyInventors: Stephen Paul Singer, Paul Barrett Merkel, Jeffrey Walter Schmoeger
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Patent number: 5658715Abstract: A silver halide color reversal photographic light-sensitive material processing method which forms a color reversal image by performing first black-and-white development, fogging process, color reversal development, and desilvering process by using a color reversal developer with a composition containing a non-dye-forming competing coupler, a silver halide fogging agent, and a carboxybenzenesulfonic acid compound and not containing hydroxylamine or its derivative.Type: GrantFiled: March 28, 1996Date of Patent: August 19, 1997Assignee: Fuji Photo Film Co., Ltd.Inventors: Takashi Nakamura, Yasuhisa Ogawa
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Patent number: 5620837Abstract: This invention provides a color silver halide photographic element comprising a support having situated thereon a red light-sensitive, cyan dye-forming unit comprising a photosensitive silver halide emulsion layer and an image dye-forming coupler; a green light-sensitive, magenta dye-forming unit comprising a photosensitive silver halide emulsion layer and an image dye-forming coupler; and a blue light-sensitive, yellow dye-forming unit comprising a photosensitive silver halide emulsion layer and an image dye-forming coupler; wherein at least one of the dye-forming units comprises two or more emulsion layers spectrally sensitized to the same region of the visible spectrum, but exhibiting different photographic sensitivities, each such emulsion layer containing an image dye-forming coupler wherein at least one, but not all, of the emulsion layers of the dye-forming unit contains the hydrolyzed or unhydrolyzed form of a benzazolium compound represented by formula (I): ##STR1##Type: GrantFiled: December 28, 1995Date of Patent: April 15, 1997Assignee: Eastman Kodak CompanyInventors: Sang H. Kim, Arlyce T. Bowne, Thomas J. Dannhauser
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Patent number: 5583063Abstract: A method of forming a T-shaped, cross-sectional pattern that enables upper and lower parts of the T-shaped patten using in first and second resist films layers independent of an existence of a mixing layer. A first resist film that is not sensitive to UV light is formed on or over a substrate and a first window is formed on or over a substrate and a first window is formed in the first resist film. The first window corresponds to the lower part of the T-shaped pattern. Next, a second resist film is formed on the first resist film to cover the first window. The second resist film is exposed to UV light to form a given image in the second resist film and is developed to form a second window in the second resist film. The second window corresponds to the upper part of the pattern.Type: GrantFiled: November 29, 1994Date of Patent: December 10, 1996Assignee: NEC CorporationInventor: Norihiko Samoto
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Patent number: 5563027Abstract: A color reversal element having a red sensitive layer containing a cyan dye forming coupler, a green sensitive layer containing a magenta dye forming coupler, and a blue sensitive layer containing a yellow dye forming coupler, the red, green and blue sensitive layers each having a speed .gtoreq.120 as measured at a density of 0.3, a Dmax of .gtoreq.3.30 and a .increment.logE .ltoreq.1.85 measured from a density of 0.20 to 3.20, the Dmax and .increment.logE being measured following exposure and processing of the element. Daylight and tungsten balanced versions of the film are also provided. A method for processing such films and exposing them in electronic film writers is also provided. Film of the present invention allows a wide range of density values in an original film to be more faithfully reproduced and enable more faithful reproduction of colors recorded in the original scanned film.Type: GrantFiled: January 17, 1995Date of Patent: October 8, 1996Assignee: Eastman Kodak CompanyInventors: Cheryl S. Johnston, John D. Baloga
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Patent number: 5550010Abstract: The present invention relates to a color photographic processing method, and a product for color photography comprising, in addition to the conventional layers of light-sensitive silver halides, a non light-sensitive top layer.The method and photographic product enable sensitivity to be controlled during photographic processing.The invention also makes it possible to prevent deterioration of the processing baths.Type: GrantFiled: August 31, 1994Date of Patent: August 27, 1996Assignee: Eastman Kodak CompanyInventors: Fran.cedilla.ois J. Bredoux, Yannick Begel, Henri Freisz
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Patent number: 5523195Abstract: A conditioning or bleach accelerating solution can be used to process color photographic films, especially color reversal films, to minimize magenta dye fade while reducing the needed amount of formaldehyde stabilizer. These advantageous effects are achieved by including a secondary amine in the solution along with a formaldehyde precursor and a bleach accelerator.Type: GrantFiled: February 23, 1995Date of Patent: June 4, 1996Assignee: Eastman Kodak CompanyInventors: Charles M. Darmon, Michael P. Youngblood, Rosa P. Sauter
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Patent number: 5418115Abstract: The present invention provides an image-forming material high in sensitivity, resolving power and quality of the formed image and excellent in resist property and stability which comprises a support, a non-photosensitive resist layer provided on the support and a photosensitive silver halide gelatin emulsion layer provided on the non-photosensitive resist layer. These layer can be provided on one or both sides of the support. Furthermore, an image-forming layer may be provided between the support and the non-photosensitive resist layer. The present invention further provides an image-forming method using the above image-forming material.Type: GrantFiled: March 23, 1994Date of Patent: May 23, 1995Assignee: Mitsubishi Paper Mills LimitedInventors: Yasuo Tsubai, Kenji Hyodo
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Patent number: 5399465Abstract: A reversal photographic element, preferably a color reversal element, is provided with development inhibitors of a defined class, and an absorber dye. The combination improves acutance. The element has a light sensitive layer containing latent image forming silver halide grains, and an inhibitor containing compound in the light sensitive layer or a non-imaging record associated with the light sensitve layer, the compound having the structural formulaCAR-(TIME).sub.n -INHwherein:CAR is a carrier moiety from which -(TIME).sub.n -INH is released during color development;TIME is a timing group;INH is comprised of a development inhibitor moiety selected from the group defined in the specification, the INH having an inhibitor strength greater than 1. The element is further provided with a dye which absorbs light to which the light sensitive layer is sensitive. Elements of the present invention are preferably processed in a standard reversal process.Type: GrantFiled: January 15, 1993Date of Patent: March 21, 1995Assignee: Eastman Kodak CompanyInventor: John D. Baloga
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Patent number: 5399466Abstract: Photographic reversal elements, preferably color reversal elements, and methods of processing them, which elements use both an inhibitor releasing compound in a causer layer and fogged grains in the receiver layer to obtain a high interimage effect. The elements can be processed by standard processing (which provides for exhaustive color development). The elements have at least a first and a second layer, the first layer containing latent image forming iodide containing silver halide grains and the second layer containing latent image forming silver halide grains. An inhibitor releasing compound is provided in the first layer or a non-imaging layer associated with the first and second layers, the inhibitor releasing compound having the structural formulaCAR-(TIME).sub.n -INHwherein:CAR is a carrier moiety from which -(TIME).sub.n -INH is released during-color development;TIME is a timing group;INH is comprised of a development inhibitor moiety; andn is 0, 1 or 2.Type: GrantFiled: January 15, 1993Date of Patent: March 21, 1995Assignee: Eastman Kodak CompanyInventor: John W. Hamer
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Patent number: 5372918Abstract: A method of processing a silver halide color reversal photographic light-sensitive material, in which the photographic light-sensitive material is developed, the method comprising a step of processing the photographic light-sensitive material in a reversal bath containing at least one anionic surface active agent. A method of treating a silver halide color reversal photographic light-sensitive material, in which the photographic light-sensitive material is developed, the method comprising a step of processing the photographic light-sensitive material in a reversal bath containing at least one nonionic surface active agent.Type: GrantFiled: March 9, 1989Date of Patent: December 13, 1994Assignee: Fuji Photo Film Co., Ltd.Inventors: Hideo Usui, Yasuo Mukunoki, Hirotsugu Kenmotsu
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Patent number: 5356759Abstract: A color reversal image forming process using a color reversal photographic material is disclosed. The process comprises an exposure step, a black and white development step, a reversal step, a color development step and a desilvering step. The color reversal photographic material comprises a support and one or more silver halide emulsion layers. According to one embodiment of the present invention, at least one silver halide emulsion layer comprises silver halide containing chloride of not less than 90 mole %, iodide of 0 mole % and bromide of not more than 10 mole %. According to another embodiment, at least one silver halide emulsion layer comprises silver halide containing chloride of not less than 88 mole %, iodide of 0.1 to 2 mole % and bromide of not more than 10 mole %. The silver halide emulsion layer further contains a compound represented by the formula (Ia) or (Ib): ##STR1## wherein R.sup.11 is an alkyl group, an alkenyl group, a heterocyclic group or an aryl group; X.sup.Type: GrantFiled: November 19, 1992Date of Patent: October 18, 1994Assignee: Fuji Photo Film Co., Ltd.Inventors: Akio Mitsui, Takatoshi Ishikawa
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Patent number: 5298369Abstract: When color reversal materials are developed by a process that comprises prolonged contact with the first, or black-and-white developer, images with a color mismatch or speed deficiency can occur. Such undesirable results can be reduced or eliminated by including in the reversal material, a layer of colloidal elemental silver. The layer can be adjacent to a light sensitive, silver halide-containing layer, which is present within a color record who's speed is to be increased in order to reduce the color mismatch. The amount of colloidal elemental silver employed is less than that used in the art to protect an underlying light sensitive, silver halide layer from exposure by unwanted light.Type: GrantFiled: June 14, 1993Date of Patent: March 29, 1994Assignee: Eastman Kodak CompanyInventors: Jal F. Munshi, Henry J. Sniadoch, Richard C. Tuites
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Patent number: 5266448Abstract: A method for color reversal processing of an imagewise exposed silver halide color photographic material comprising first developing in a black-and-white developing bath, next color developing in a color developing bath, and then desilvering in a bath having a bleaching ability. The black-and-white developing bath has a bromide concentration in the range of 0.025 to 0.1 mol/l and is used for the black-and-white development. Furthermore, in a preferred embodiment, the photographic material comprises at least one silver halide emulsion layer containing a silver halide emulsion comprising silver halide grains having an average grain size of 0.3 .mu.m or less. In accordance with the invention, the maximum densities of the developed color images are increased without lowering of the sensitivity and contrast.Type: GrantFiled: March 27, 1992Date of Patent: November 30, 1993Assignee: Fuji Photo Film Co., Ltd.Inventors: Sadanobu Shuto, Takatoshi Ishikawa
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Patent number: 5262287Abstract: A silver halide color reversal photographic material comprising a support having thereon at least one cyan coupler-containing red-sensitive silver halide emulsion layer, at least one magenta coupler-containing green-sensitive silver halide emulsion layer, and at least one yellow coupler-containing blue-sensitive silver halide emulsion layer, wherein the total light-sensitive silver halide grains in the photographic material have an average silver iodide content of 5.5 mol % or less, and said at least one of light-sensitive silver halide emulsion layers and a substantially light-insensitive hydrophilic colloidal layer adjacent thereto comprises means for producing an interimage effect, said interimage effect satisfying at least one of relationships (a) and (b):(a)0.20.ltoreq..DELTA.logE(R.sub.0.5).ltoreq.0.40,0.ltoreq..DELTA.logE(R.sub.1.5).ltoreq.0.07,and0.18.ltoreq..DELTA.logE(R.sub.0.5)-.DELTA.logE(R.sub.1.5).ltoreq.0.35(b)0.25.ltoreq..DELTA.logE(G.sub.0.5).ltoreq.0.45,0.ltoreq..DELTA.logE(G.sub.1.5).Type: GrantFiled: January 28, 1991Date of Patent: November 16, 1993Assignee: Fuji Photo Film Co., Ltd.Inventors: Naoyasu Deguchi, Junichi Tamano
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Patent number: 5164288Abstract: Photographic elements are described havinga silver halide emulsion layer,a pyrazoloazole coupler in reactive association with said silver halide emulsion, anda competitor for oxidized developer in reactive association with said coupler having the formula: ##STR1## R.sup.1 represents an electron donating group, R.sup.2 represents hydrogen, alkyl, alkoxy, aryl, aryloxy, aralkyl or amino of the formula --NHR.sup.3, where R.sup.3 is phenyl or benzyl, with the proviso that at least one of the substituents R.sup.1 and R.sup.2 (a) represents a ballast group of sufficient size as to render the hydrazide compound non-diffusible in the photographic element prior to developement in alkaline processing solution and (b) comprises a polar group, andn is 0, 1 or 2.Type: GrantFiled: May 29, 1990Date of Patent: November 17, 1992Assignee: Eastman Kodak CompanyInventors: John V. Nelson, Arlyce T. Bowne, Terry L. Bistrovich
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Patent number: 5110715Abstract: The present invention relates to a photographic reversal process for the production of positive photographic images by imagewise exposure of the photosensitive material containing at least one silver halide emulsion layer, black-and-white first development of the material, chemical fogging or diffuse second exposure and subsequent color development, characterized in that1. at least one N,N-dialkyl-p-phenylenediamine derivative is used as sole developer in the first development,2. the first development bath contains at least one compound which prevents the developer oxidation product formed during the first development from reacting with the color couplers present in the color photographic reversal material to form image dyes,3.Type: GrantFiled: October 10, 1989Date of Patent: May 5, 1992Assignee: Agfa Gavaert AktiengesellschaftInventors: Ubbo Wernicke, Werner Berthold, Helmut Haseler, Gustav Tappe
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Patent number: 5035989Abstract: A silver halide photographic material for reversal processing is disclosed, which comprises a support having provided thereon at least one hydrophilic colloidal layer, the hydrophilic colloidal layer being a light-sensitive silver halide emulsion layer, silver halide grains of the silver halide emulsion being of a core/shell structure comprising a core portion substantially composed of silver bromide and said shell portion substantially composed of silver bromoiodide.Type: GrantFiled: November 28, 1989Date of Patent: July 30, 1991Assignee: Fuji Photo Film Co., Ltd.Inventors: Shingo Nishiyama, Naomi Saeki
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Patent number: 5006439Abstract: A photographic reversal process for the production of positive photographic images by imagewise exposure of the photosensitive material containing at least one silver halide emulsion layer, black-and-white first development of the material, chemical fogging, color development and bleaching, fixing, washing or stabilizing and drying, in which the material is transferred from the first development to the color development without any intermediate steps, such as intermediate washing or diffuse second exposure, the first development bath exclusively contains one or more N,N-dialkyl-p-phenylenediamine derivatives as developer and a tin(II) complex compound and is adjusted to a pH value of <8 and the color development bath likewise exclusively contains one or more N,N-dialkyl-p-phenylenediamine derivatives as developer and is adjusted to a pH value >10, requires considerably less time than the conventional process but produces equivalent results.Type: GrantFiled: November 13, 1989Date of Patent: April 9, 1991Assignee: Agfa-Gevaert AktiengesellschaftInventors: Ubbo Wernicke, Herbert Mitzinger
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Patent number: 4966833Abstract: A method for the formation of direct positive color images wherein after image-wise exposure of a direct positive color photosensitive material which comprises at least one internal latent image type silver halide emulsion layer which has not been pre-fogged and color image forming couplers on a support, the material is subjected to development after and/or during a fogging process, the development process being carried out using a development bath which contains at least one N-hydroxylalkyl substituted p-phenylenediamine derivative in the presence of at least one compound of general formula [I] and/or [II] as indicated below: ##STR1## wherein Q represents the group of atoms required to form a five- or six-membered heterocyclic ring, which heterocyclic ring may be condensed with a carbon aromatic ring or a heterocyclic aromatic ring,Y represents a divalent linking group consisting of at least one atom selected from the group consisting of, carbon atom, nitrogen atom, oxygen atom, sulfur atom, and R representsType: GrantFiled: October 5, 1988Date of Patent: October 30, 1990Assignee: Fuji Photo Film Co., Ltd.Inventor: Noriyuki Inoue
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Patent number: 4960677Abstract: A dry nonelectroscopic toner surface coated with 3 to 40% by weight of an organofunctional substituted fluorocarbon compound. Toners of the invention are useful for developing photosensitive elements having imagewise tacky and complementary nontacky image areas. The surface coating imparts good toning and clean-up characteristics, together with improved performance on aging.Type: GrantFiled: August 14, 1987Date of Patent: October 2, 1990Assignee: E. I. Du Pont de Nemours and CompanyInventors: Josette C. Seibles, Howard Matrick
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Patent number: 4960682Abstract: Improved photographic bleaching compositions for use in the color processing of photographic elements comprise an aqueous solution containing a photographic bleaching agent, such as, for example, an ammonium or alkali metal salt of a ferric complex of an aminopolycarboxylic acid, and a dye-stabilizing amount of a formaldehyde percursor.Type: GrantFiled: December 19, 1988Date of Patent: October 2, 1990Assignee: Eastman Kodak CompanyInventors: Ann M. Cullinan, Paul A. Schwartz
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Patent number: H1015Abstract: A method of processing a silver halide color reversal photographic light-sensitive material, in which the photographic light-sensitive material is developed, the method comprising a step of processing the photographic light-sensitive material in a reversal bath containing at least one anionic surface active agent. A method of treating a silver halide color reversal photographic light-sensitive material, in which the photographic light-sensitive material is developed, the method comprising a step of processing the photographic light-sensitive material in a reversal bath containing at least one nonionic surface active agent.Type: GrantFiled: March 9, 1989Date of Patent: January 7, 1992Assignee: Fuji Photo Film Co., Ltd.Inventors: Hideo Usui, Yasuo Nukunoki, Hirotsugu Kenmotsu