And Dye Patents (Class 430/390)
-
Patent number: 8409792Abstract: Silver halide photographic elements that are color intermediate motion picture films have at least one green sensitive silver halide emulsion that includes a green sensitizing dye that is a cyanine dye having two oxazole groups in the molecule, and another green sensitizing dye having either two imidazole groups in the molecule or one oxazole group and one thiazole group in the molecule. The molar ratio of the first green sensitizing dye to the second green sensitizing dye is from about 4:1 to about 0.3:1. The magenta dye image forming unit has at least one green sensitive silver halide emulsion layer that comprises predominantly cubic silver iodobromide grains having at least 90 mol % bromide and at least 1 mol % iodide, which grains have an average equivalent spherical diameter (ESD) of less than 0.25 ?m.Type: GrantFiled: February 14, 2011Date of Patent: April 2, 2013Assignee: East Kodak CompanyInventor: Jeffrey C. Hansen
-
Patent number: 7998665Abstract: Silver halide photographic elements that are color intermediate motion picture films have at least one green sensitive silver halide emulsion that includes a green sensitizing dye that is a cyanine dye having two oxazole groups in the molecule, and another green sensitizing dye having either two imidazole groups in the molecule or one oxazole group and one thiazole group in the molecule. The molar ratio of the first green sensitizing dye to the second green sensitizing dye is from about 4:1 to about 0.3:1. The magenta dye image forming unit has at least one green sensitive silver halide emulsion layer that comprises predominantly cubic silver iodobromide grains having at least 90 mol % bromide and at least 1 mol % iodide, which grains have an average equivalent spherical diameter (ESD) of less than 0.25 ?m.Type: GrantFiled: March 8, 2010Date of Patent: August 16, 2011Assignee: Eastman Kodak CompanyInventor: Jeffrey C. Hansen
-
Patent number: 7732124Abstract: A color-image forming method in a silver halide color photographic light-sensitive material, having the steps of: performing exposure of the light-sensitive material cut into sheets; and subjecting the exposed light-sensitive material sheets to photographic processing, while conveying them with conveying rollers, with the sheet conveying speed being 40.0 to 100 mm/sec; wherein the light-sensitive material to be exposed contains any of: 1) a dye-forming coupler of formula (IA), 2) a compound of formula (I), and 3) 1.4 mg/m2 or more of a compound of formula (II); wherein R? and R? are a substituent; Z is a hydrogen atom, or a coupling split-off group; A is an alkyl group, M is a cation, and R is an atom or group having 100 or lower total molecular weight.Type: GrantFiled: November 20, 2008Date of Patent: June 8, 2010Assignee: Fujifilm CorporationInventors: Yasuaki Deguchi, Shin Soejima, Naoto Ohshima, Tatsuya Ishizaka, Katsuyuki Takada, Futoshi Yoshida, Atsushi Maruhashi, Yoshinori Morimoto, Takehisa Ohno
-
Patent number: 7687229Abstract: A silver halide color photographic light-sensitive material having, on a support, at least each one light-sensitive silver halide emulsion layers containing yellow-, magenta-, or cyan-dye-forming-coupler, and at least one light-insensitive hydrophilic colloid layer, wherein at least one of the dye-forming couplers is a dye-forming coupler that forms an azomethine dye having a solubility of 1×10?8 mol/L to 5×10?3 mol/L in ethyl acetate; and an image forming method using the light-sensitive material.Type: GrantFiled: August 23, 2005Date of Patent: March 30, 2010Assignee: FUJIFILM CorporationInventors: Yasuaki Deguchi, Kiyoshi Takeuchi, Mamoru Sakurazawa, Makoto Yamada, Takehiko Satou
-
Patent number: 7632632Abstract: Silver halide color photographic elements having multiple color imaging layers contain a permanent, pre-formed magenta dye that is present in an amount to provide a status M green density greater than 0.005 per mg/m2. This dye provides minimum density at lower cost and enables lower dye levels and a reduced organic load that may lead to improved film physical properties.Type: GrantFiled: June 27, 2008Date of Patent: December 15, 2009Assignee: Eastman Kodak CompanyInventors: Paul L. Zengerle, John W. Harder, Drake M. Michno, James H. Reynolds, Steven P. Szatynski
-
Patent number: 7629112Abstract: Silver halide color photographic elements having multiple color imaging layers contain a permanent, pre-formed yellow colorant that is present in an amount to provide a status M blue density greater than 0.003 per mg/m2. This colorant provides minimum density at lower cost and can be incorporated with minimal or no organic solvents and thus enable a reduced organic load that may lead to improved film physical properties.Type: GrantFiled: May 30, 2008Date of Patent: December 8, 2009Assignee: Eastman Kodak CompanyInventors: Paul L. Zengerle, Drake M. Michno, James H. Reynolds, Steven P. Szatynski, John W. Harder
-
Patent number: 7598025Abstract: The present invention is characterized to provide a hologram silver halide photographic material having high sensitivity and diffraction efficiency, providing an excellent image and having less color residue and noise in a transparent part, a hologram, a method for producing the same. In the present invention, a hologram silver halide photographic material having at least one silver halide emulsion layer formed on a support, wherein an average particle diameter of silver halide particles in a silver halide emulsion is 0.03 ?m to 0.07 ?m; a film thickness of the silver halide emulsion layer is 4 ?m to 9 ?m; a silver/gelatin ratio of the silver halide emulsion layer is 0.3 to 0.6; and the silver halide emulsion layer contains sensitizing dye of specific structure.Type: GrantFiled: January 17, 2007Date of Patent: October 6, 2009Assignees: Konica Minolta Opto Inc., Dia Nippon Printing Co., Ltd.Inventors: Kenji Michiue, Tomonobu Moriya, Masashi Iwasaki, Toshihiro Kubota, Masachika Watanabe, Tsuyoshi Yamauchi, Tomoko Kumasawa, Kenji Ueda
-
Patent number: 7241562Abstract: This invention relates to a color silver halide photographic element comprising gelatin, a support bearing at least one dye image forming unit selected from a dye image forming unit comprising at least one red sensitive silver halide emulsion layer having associated therewith a dye-forming coupler, a dye image forming unit comprising at least one green sensitive silver halide emulsion layer having associated therewith a dye-forming coupler, and a dye image forming unit comprising at least one blue sensitive silver halide emulsion layer having associated therewith a dye-forming coupler; and a polymer represented by Formula 1.Type: GrantFiled: January 21, 2004Date of Patent: July 10, 2007Assignee: Eastman Kodak CompanyInventors: Sidney J. Bertucci, David M. Teegarden, David E. Decker, Thomas H. Whitesides, Larry D. Edwards
-
Patent number: 7153644Abstract: A silver halide color photosensitive material, which has: at least each one layer of yellow-, magenta- and cyan-color-forming photosensitive silver halide emulsion layers on a reflective support, and at least one non-light-sensitive non-color-forming hydrophilic colloidal layer; wherein at least one of the photosensitive silver halide emulsion layers contains a silver halide emulsion containing 90 mol % or more of silver chloride, and a compound having a repetitive unit of formula (I) is contained: wherein R1 is —OR, —SR or —N—R(—R?), where R and R? are a hydrogen atom, or an alkyl, aryl, aralkyl, cycloalkyl or heterocyclic group, or R and R? may form a saturated carbon ring or a heterocycle; R2 and R3 are a hydrogen atom or an alkyl group; Y1 and Y2 are a polymethylene, arylene or cycloalkylene group; Z is —O—, —SO2— or —CH2—; and m is 0 or 1.Type: GrantFiled: May 11, 2004Date of Patent: December 26, 2006Assignee: Fuji Photo Film Co., Ltd.Inventors: Akito Yokozawa, Tetsuo Nakamura, Katsuyuki Takada
-
Patent number: 7087365Abstract: A method for forming images on a silver halide color photographic photosensitive material having a substrate and photographic structural layers thereon, including, at least three silver halide color photosensitive layers having different photosensitive regions, respectively, and at least one non-photosensitive hydrophilic colloid layer is disclosed. At least one of the photosensitive layers contains 90 mol % or more of silver chloride. Shortly after the silver halide color photographic photosensitive material has been scan-exposed with laser beams, the material is rapid-processed with a low replenishing amount.Type: GrantFiled: February 13, 2004Date of Patent: August 8, 2006Assignee: Fuji Photo Film Co., Ltd.Inventors: Naoto Ohshima, Akito Yokozawa, Naoya Shibata
-
Publication number: 20040053175Abstract: A method of developing a latent image on a photographic element (such as imagewise exposed photographic film) by absorbing a dye precursor into the film, applying a developer solution to the film to develop the latent image and form a dye in the film, scanning the film with light, and detecting at least one of light reflected away from and light transmitted through the film.Type: ApplicationFiled: September 8, 2003Publication date: March 18, 2004Inventors: Michael P. Keyes, Douglas E. Corbin
-
Publication number: 20030228544Abstract: A method for forming images on a silver halide color photographic photosensitive material having a substrate and photographic structural layers thereon, including, at least three silver halide color photosensitive layers having different photosensitive regions, respectively, and at least one non-photosensitive hydrophilic colloid layer is disclosed. At least one of the photosensitive layers contains 90 mol % or more of silver chloride. Shortly after the silver halide color photographic photosensitive material has been scan-exposed with laser beams, the material is rapid-processed with a low replenishing amount.Type: ApplicationFiled: April 14, 2003Publication date: December 11, 2003Applicant: FUJI PHOTO FILM CO., LTD.Inventors: Naoto Ohshima, Akito Yokozawa, Naoya Shibata
-
Patent number: 6620562Abstract: The present invention is directed to a method of scanning silver-halide-containing color photographic and photothermographic film. In particular, the present invention comprises a photographic element comprising at least one infrared imaging dye-forming agent in a blue-sensitive color layer of the element, thereby forming at least one image record in the infrared region of the imagewise exposed and developed element. This expedient leads to the formation of high quality images when scanning photographic elements in which the silver halide, metallic silver, and/or any organic silver salts have not been removed.Type: GrantFiled: August 13, 2001Date of Patent: September 16, 2003Assignee: Eastman Kodak CompanyInventors: James H. Reynolds, David H. Levy, Robert W. Kulpinski, Leif P. Olson, Wojciech K. Slusarek
-
Patent number: 6579669Abstract: This relates to a method of rendering a used photographic processing solution less corrosive to low carbon steel comprising: taking at least a used photographic processing solution containing a color developing agent and a used photographic processing solution containing a bleaching agent; delivering the used photographic processing solutions to a collection vessel to form a used photographic processing composition; and adjusting the pH of the used photographic processing composition to 6.5 to 11.Type: GrantFiled: October 30, 2001Date of Patent: June 17, 2003Assignee: Eastman Kodak CompanyInventors: Eric R. Schmittou, Cynthia A. Salsedo
-
Publication number: 20020146651Abstract: A color-developing agent of the formula (1-1): 1Type: ApplicationFiled: July 25, 2001Publication date: October 10, 2002Inventors: Osamu Uchida, Yasuhiro Ishiwata, Takayuki Ito, Nobutaka Fukagawa
-
Publication number: 20020110764Abstract: The present invention provides a silver halide photographic material that is excellent in photographic speed as well as image graininess and exhibits low residual color even after rapid processing. The silver halide photographic material contains a compound represented by formula (I) and a compound represented by formula (II), as defined.Type: ApplicationFiled: March 26, 2001Publication date: August 15, 2002Inventors: Katsuhisa Ohzeki, Tetsuo Nakamura, Takanori Hioki
-
Publication number: 20020086249Abstract: A method of processing a silver halide color photographic lightsensitive material. The material comprises a support and at least one lightsensitive silver halide emulsion layer containing a binder and lightsensitive silver halide grains comprising tabular grains on the support. The material further comprises a developing agent or its precursor, and a compound capable of forming a dye by a coupling reaction with the developing agent in an oxidized form. The method comprises (a) exposing the material under natural light of 2000-9000K color temperature or artificial light corresponding thereto, for {fraction (1/10)}-{fraction (1/1000)} sec, in an exposure amount such that 80-90% (numerical ratio) of the grains contained in the lightsensitive layer have at least one development initiating point per grain, and (b) color developing the exposed material so that the tabular grains have 3.0 or more (average) development initiating points per grain at the completion of the development.Type: ApplicationFiled: May 2, 2001Publication date: July 4, 2002Inventors: Makoto Kikuchi, Yoshio Ishii, Toshio Kawagishi
-
Publication number: 20020055070Abstract: A silver halide photographic light-sensitive material comprising, on a support, at least one light-sensitive silver halide emulsion layer and at least one non-light-sensitive layer, wherein 60% or more of the total projected area of silver halide grains contained in said at least one light-sensitive silver halide emulsion layer are tabular silver halide grains having an average aspect ratio of 5 or more, and a film pAg on the light-sensitive silver halide emulsion layer side of said material falls within 4.0 to 8.5.Type: ApplicationFiled: June 8, 2001Publication date: May 9, 2002Applicant: FUJI PHOTO FILM CO., LTD.Inventor: Minoru Uchida
-
Publication number: 20020022201Abstract: A red sensitive photographic recording material is disclosed having an emulsion layer with low silver halide and low binder content. It further comprises a polyester support having subbing layers on both sides and an anti-halation layer on the back side.Type: ApplicationFiled: June 26, 2001Publication date: February 21, 2002Inventors: Roland Claes, Stefaan Lingier, Etienne Van Thillo
-
Publication number: 20010041314Abstract: A method for reducing dye stain of an exposed photographic element, said element comprising a support having thereon at least one image-forming layer containing a photobleachable dye, the method comprising processing the element, and exposing the processed element, in presence of a N-oxyazinium, to radiation that can be absorbed either by the photobleachable dye or by the N-oxyazinium.Type: ApplicationFiled: December 4, 2000Publication date: November 15, 2001Inventors: Samir Y. Farid, Ramanuj Goswami, Mary E. Craver, John M. Mangus
-
Patent number: 6207359Abstract: A method for reducing dye stain of an exposed photographic element, said element comprising a support having thereon at least one image-forming layer containing a photobleachable dye, the method comprising processing the element, and exposing the processed element, in presence of a N-oxyazinium, to radiation that can be absorbed either by the photobleachable dye or by the N-oxyazinium.Type: GrantFiled: February 22, 2000Date of Patent: March 27, 2001Assignee: Eastman Kodak CompanyInventors: Samir Y. Farid, Ramanuj Goswami, Mary E. Craver, John M. Mangus
-
Patent number: 6190821Abstract: A photosensitive silver halide film material is disclosed comprising a support and on one or both sides thereof one or more layer(s) comprising a photosensitive silver halide emulsion wherein tabular silver halide crystals having an average thickness of less than 0.25 &mgr;m and an average aspect ratio of 2 or more are present characterized in that said photosensitive silver halide emulsion layer(s) comprise(s) blue colored polymeric matting particles.Type: GrantFiled: November 19, 1997Date of Patent: February 20, 2001Assignee: Agfa-Gevaert, N.V.Inventor: Hubert Vandenabeele
-
Patent number: 6183944Abstract: A dispersion comprising an aqueous medium having dispersed therein an aggregated dye of the Formula (I): wherein X is oxygen or sulfur; R1-R4 each independently represent an unsubstituted or substituted alkyl group, an unsubstituted or substituted aryl group or an unsubstituted or substituted heteroaryl group; L1, L2 and L3 each independently represent substituted or unsubstituted methine groups; M+ represents a proton or an inorganic or organic cation; and n is 0, 1, 2 or 3 and wherein the aggregated dye in the dispersion has an absorption halfbandwidth of less than 55 nm.Type: GrantFiled: November 30, 1995Date of Patent: February 6, 2001Assignee: Eastman Kodak CompanyInventors: Margaret Jones Helber, William James Harrison, Elizabeth Ann Gallo, Mary Christine Brick, Steven Wade Kortum, Gary Norman Barber
-
Monochrome image forming silver halide light-sensitive material and photo-taking unit using the same
Patent number: 6027868Abstract: Disclosed are a silver halide light-sensitive material for forming a monochrome-image which material is colored in orange, a silver halide light-sensitive material for forming a monochrome-image which material has an identical printing level as at least one of the silver halide color light-sensitive materials provided for a negative-positive type color photographic system, and a photo-taking unit loading and packaging in a photographable state at least one of the monochrome image forming silver halide light-sensitive material. The invention provides a silver halide light-sensitive material for forming a monochrome-image which is suitable for a negative-positive system color photographic processing and is easy for printing onto a photographic paper.Type: GrantFiled: September 4, 1997Date of Patent: February 22, 2000Assignee: Konica CorporationInventors: Masaru Iwagaki, Toshihiko Iwasaki -
Patent number: 6013430Abstract: A thermal recording element comprising a support having thereon a recording layer comprising a J-aggregate cyanine dye dispersed in a hydrophilic binder, the J-aggregate dye having the formula: whereinX and Y each independently represents O, S, a NR group or CH.dbd.CH;R represents a substituted or unsubstituted alkyl group having from about 1 to about 6 carbon atoms;R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.7, R.sup.8, R.sup.9 and R.sup.10 each independently represents a substituted or unsubstituted alkyl or alkoxy group having from about 1 to about 6 carbon atoms; halogen; a substituted or unsubstituted aryl group having from about 6 to about 10 atoms; or a substituted or unsubstituted heteroaryl group having from about 5 to about 10 atoms;any two adjacent substituents on the aryl ring may be taken together to form a 6-membered aromatic ring;R.sup.5 and R.sup.6 each independently represents a substituted or unsubstituted alkyl group having from about 1 to about 6 carbon atoms or sulfoalkyl;L.sup.1, L.sup.Type: GrantFiled: March 10, 1998Date of Patent: January 11, 2000Assignee: Eastman Kodak CompanyInventors: Huijuan D. Chen, Derek D. Chapman
-
Patent number: 5939246Abstract: A process of compositing two or more separate images comprising: (a) imagewise exposing a color negative photographic recording material to a subject in front of a uniformly colored screen background, wherein the photographic recording material comprises a support bearing red light, green light, and blue light sensitive color records, and at least one distributed red light absorbing compound in an amount such as to reduce the sensitivity of the red light sensitive color record by at least 40%, and the light sensitivities of the green light sensitive color record and the blue light sensitive color record are each reduced by less than 20% by the presence of any distributed light absorbing compounds, (b) forming a color negative image of the subject and screen background by developing the exposed photographic material with a color developing agent, (c) separating the subject image of the color negative from the screen background image, and (d) compositing the separated subject image with a second image.Type: GrantFiled: January 15, 1998Date of Patent: August 17, 1999Assignee: Eastman Kodak CompanyInventors: John C. Brewer, Donald H. Hunger
-
Patent number: 5728511Abstract: A silver halide photographic material is provided which exhibits nearly equal sensitivities and gamma values with respect to yellow, magenta and cyan to form a black-and-white image of neutral black or sepia tone, even when it is processed with a color developer free from benzyl alcohol.The silver halide photographic material is made up of a substrate and at least one silver halide emulsion layer formed on the substrate. The silver chloride content of silver halide grains constituting the silver halide emulsion layer is 95 mole % or above, the silver halide emulsion is spectrally sensitized by a specific sensitizing dye, and the silver halide emulsion layer contains a yellow coupler, a magenta coupler and a cyan coupler. The image-forming process is characterized by developing the silver halide photographic material with a color developer substantially free from benzyl alcohol.Type: GrantFiled: March 5, 1997Date of Patent: March 17, 1998Assignee: Oriental Photo Industrial Co., Ltd.Inventors: Toshio Hirosawa, Kouji Katsube, Junichi Komiyama, Yoshiro Hayafuchi, Toshiko Nakamura
-
Patent number: 5714307Abstract: A silver halide photographic material comprises a support, at least one silver halide emulsion layer and at least one non-light-sensitive hydrophilic colloidal layer. The silver halide emulsion layer or the hydrophilic colloidal layer contains a colorant having the absorption maximum wavelength within the infrared region of 700 to 1,100 nm. The colorant is in the form of solid particles dispersed in the silver halide emulsion layer or in the hydrophilic colloidal layer. The solid particles cannot substantially be removed by a processing solution of the silver halide photographic material. An image forming process employing the silver halide photographic material is also disclosed.Type: GrantFiled: September 22, 1995Date of Patent: February 3, 1998Assignee: Fuji Photo Film Co., Ltd.Inventors: Toru Harada, Keiichi Suzuki, Shigeru Ohno, Koji Wariishi, Yoshiharu Yabuki
-
Patent number: 5707792Abstract: A silver halide photographic light sensitive material is disclosed, comprising a support having thereon photographic component layers including a silver halide emulsion layer and a light insensitive hydrophilic colloidal layer, wherein at least one of the component layers contains a leuco dye represented by the following formula.Type: GrantFiled: January 30, 1997Date of Patent: January 13, 1998Assignee: Konica CorporationInventors: Taketoshi Yamada, Norio Miura, Emiko Kataoka, Katsunori Katoh
-
Patent number: 5705312Abstract: There is described a photographic system wherein development of an exposed photosensitive element is carried out in the presence of a quaternary pyridinium compound which has a fused 5 - to 12 - member saturated carbocyclic ring attached to the 2 and 3 positions of the pyridine ring.Type: GrantFiled: November 25, 1996Date of Patent: January 6, 1998Assignee: Polaroid CorporationInventors: Donna J. Guarrera, Neil C. Mattucci, Avinash C. Mehta, Lloyd D. Taylor, John C. Warner
-
Patent number: 5604079Abstract: There is described a photographic system wherein development of an exposed photosensitive element is carried out in the presence of an acylpyridine-N-oxide compound.Type: GrantFiled: May 14, 1996Date of Patent: February 18, 1997Assignee: Polaroid CorporationInventors: Michael P. Filosa, Edward D. Kingsley, Kenneth C. Waterman
-
Patent number: 5460923Abstract: A processing method for silver halide photographic material is disclosed, in which at least one hydrophilic colloidal layer containing a dye of a solid fine grain dispersion. The processing method is carried out by processing the photographic material with a solution having a fixing ability containing at least one compound represented by formula (A):RSO.sub.2 SM (A)wherein R represents an aliphatic group, an aryl group or a heterocyclic group, and M represents a hydrogen atom or a cation group.Type: GrantFiled: December 23, 1994Date of Patent: October 24, 1995Assignee: Fuji Photo Film Co., Ltd.Inventors: Masatoshi Goto, Yoshihiro Fujita
-
Patent number: 5441854Abstract: A process is disclosed for forming a color photographic image comprising the steps of:(a) providing an integral element comprising one and only one dimensionally stable layer comprising a reflection base or transparent base coating support, and coated thereon in reactive association an imaging layer comprising radiation sensitive silver halide, a diffusible dye forming layer comprising a diffusible dye forming compound, and a barrier layer overlaying said diffusible dye forming layer;(b) exposing this integral element to actinic radiation(c) processing this integral element by contacting this element to an external bath containing compounds selected from the group consisting of color developer compounds, compounds which activate the release of incorporated color developers, and compounds which activate development by incorporated dye developers; and(d) washing this integral element to remove compounds imbibed in step (c). The diffusible dye forming layer is the same or different than the imaging layer.Type: GrantFiled: July 18, 1994Date of Patent: August 15, 1995Assignee: Eastman Kodak CompanyInventors: John Texter, Wayne A. Bowman, Glenn T. Pearce
-
Patent number: 5418116Abstract: The invention relates to providing a method of toning a black-and-white image formed with color couplers comprising providing a developed image, applying a hue changing material to said print wherein the hue of at least dye in said print is changed.Type: GrantFiled: December 7, 1993Date of Patent: May 23, 1995Assignee: Eastman Kodak CompanyInventors: Gary R. Gottschalk, Joseph I. Varga
-
Patent number: 5262286Abstract: The invention is generally accomplished by providing a reflection print material having thereon sensitized silver halide containing layers and at least one layer comprising at least one insoluble colored tint, wherein said at least one tint changes the color of said material to be less yellow. In a preferred form, it has been found that a combination of two tints is preferred to provide ready adjustment of the tinting to match the yellowing characteristics of the print material.Type: GrantFiled: July 31, 1992Date of Patent: November 16, 1993Assignee: Eastman Kodak CompanyInventors: John F. Bacilek, Gary J. McSweeney
-
Patent number: 4980262Abstract: A photographic contact printing process is disclosed having application in the mass production of replicate video discs from a master disc, and other applications wherein it is desired to replicate micro-detail over a relatively large area. A problem with conventional contact printing from a mask to a photographic medium is one of maintaining intimate contact over a relatively large area since dust, dirt, etc., are almost impossible to completely eliminate in any practical manner. In accordance with the present invention, a contact printing process is provided wherein intimate contact is not necessary for making high quality contact prints. The present invention recognizes that in contact printing information from a master disc to a replicate disc, the contact printing process is significantly less sensitive to imperfect contact between the master disc and the replicate disc if one employs a replicate disc comprising a photosensitive material having a certain optical properties.Type: GrantFiled: August 29, 1979Date of Patent: December 25, 1990Assignee: Eastman Kodak CompanyInventors: Harold T. Thomas, Dennis G. Howe
-
Patent number: 4888266Abstract: The invention relates to a process for producing supports intended for the optical recording and reading of information. A layer containing a diazo compound is deposited onto a metallized substrate. Recording is obtained by exposing the support to light through a mask, the exposed zones of the layer of diazo compound being decomposed. Dry development in ammonia vapors shows up transparent zones and opaque zones corresponding to the information.Type: GrantFiled: March 13, 1987Date of Patent: December 19, 1989Assignee: Thomson BrandtInventors: Jean-Pierre Lacotte, Claude Puech
-
Patent number: 4775614Abstract: An ecologically advantageous method for fixing a developed photographic silver halide emulsion layer material which involves the steps of:(A) developing an image-wise exposed silver halide emulsion layer with a developing agent in the presence of an aqueous alkaline liquid,(B) bringing the developed photographic material while still wet with the liquid of step (A) with its silver halide emulsion layer side in intimate contact with a water-absorbing layer of a receptor element, which layer comprises an organic hydrophilic colloid binder, a silver halide complexing agent, and in dispersed form a metal sulphide as silver ion scavenging agent,(C) maintaining said photographic material and receptor element in contact to allow the transfer of dissolved complexed silver compound into said receptor element, and(D) separating the photographic material from the receptor element, andwherein said water-absorbing layer contains said metal sulphide in colloidal form with an average grain size below 0.1 .mu.Type: GrantFiled: October 20, 1986Date of Patent: October 4, 1988Assignee: Agfa-Gevaert N.V.Inventor: Gino L. De Rycke
-
Patent number: 4738917Abstract: A method for processing a silver halide photographic material by processing a silver halide color photographic light-sensitive material containing at least a silver halide emulsion layer comprising a silver halide grain essentially consisting of silver chlorobromide and a binder having a swelling rate of T 1/2 of 2 sec. to 30 sec. The color developer contains a n-hydroxyalkyl-p-phenylenediamine derivative at a temperature not less than 30.degree. C. for a time not more than 150 sec. The time and temperature are effective to process the silver halide color photographic light-sensitive material without decreasing the stability of the resulting dye image.Type: GrantFiled: May 15, 1986Date of Patent: April 19, 1988Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: Shigeharu Koboshi, Satoru Kuse, Kazuhiro Kobayashi, Masao Ishikawa, Masayuki Kurematsu
-
Patent number: 4708927Abstract: A novel photographic element is disclosed. The element comprises a light-sensitive element including a light-sensitive silver halide emulsion layer coated on a support, wherein said silver halide emulsion layer or other photographic layers contain at least one development inhibitor precursor represented by formula (I) ##STR1## wherein A represents a phenyl group or a 5- or 6-membered nitrogen-containing heterocyclic ring group; L represents a chemical bond or divalent linking group; p and q each represents an integer of 1 or 2; and n represents 0 or 1.Type: GrantFiled: April 10, 1986Date of Patent: November 24, 1987Assignee: Fuji Photo Film Co., Ltd.Inventors: Hisashi Okamura, Hiroshi Kawamoto, Yoshio Sakakibara
-
Patent number: 4678740Abstract: A photographic matte for use in traveling matte photography is formed by recording a separation of a first screen-color separation of an image on a first film layer and recording a separation of a different second color on a second layer. Preferably, the second color is complementary to the screen color. One layer is developed to form a positive image and the other to form a negative image, these images reinforcing each other. One image is formed by black dye, using a coupler and a color developer and the other is formed by a black dye destruct technique in which the developed portion of the silver halide emulsion is removed. According to another aspect of the invention, a matte of increased density can be formed without commensurate image growth by combining a black dye image with a silver image.Type: GrantFiled: April 29, 1985Date of Patent: July 7, 1987Inventor: James N. Catania
-
Patent number: 4661437Abstract: A photographic recording material which contains at least one dye of the formula ##STR1## wherein D is the group of atoms necessary to complete a 5-membered ring that contains at least one nitrogen atom, A is hydrogen, alkyl, alkoxy, phenyl, alkylthio, cyano, nitro or halogen, n is 0 to 3, R.sub.1 is hydrogen, alkyl, hydroxyl, acylamino, R.sub.6 is hydrogen or unsubstituted or substituted amino, and R.sub.4 is hydrogen or alkoxy. The material is distinguished by good color reproduction, brilliant colors and excellent lightfastness.Type: GrantFiled: July 19, 1985Date of Patent: April 28, 1987Assignee: Ciba-Geigy AGInventor: Paul Tschopp
-
Patent number: 4629683Abstract: A method of processing a photographic material which contains a light-sensitive silver halide emulsion layer having associated therewith a blocked photographic agent capable of releasing a photographically useful agent by ring cleavage of a 4- to 7-membered ring containing at least one carbonyl group in the presence of a hydroxylamine, whereby both high stability of the photographic material upon storage and timely release of the photographically useful agent upon processing are achieved.Type: GrantFiled: April 20, 1984Date of Patent: December 16, 1986Assignee: Fuji Photo Film Co., Ltd.Inventors: Isamu Itoh, Mitsunori Ono, Keiji Mihayashi, Seiji Ichijima, Hidetoshi Kobayashi
-
Patent number: 4609609Abstract: Compounds of the formula(B--L).sub.m A--L'--B').sub.n (1),in which A is the radical of a bisazo or trisazo dye, L and L' are organic radicals and B and B' are cyclic organic radicals and at least one of the radicals B and B' has spectral absorption in the UV region and one of the radicals B and B' is different from 2,4-dihydroxyphenyl, m is 1 or 2 and n is 0, 1 or 2.The compounds are suitable for use as image dyes in photographic silver dye bleach materials.Type: GrantFiled: July 19, 1985Date of Patent: September 2, 1986Assignee: Ciba Geigy AGInventors: Thomas-Markus Rohr, Jakob Kuhn
-
Patent number: 4594426Abstract: Benzoxazole derivatives represented by general formula (I) which are intermediates for synthesis of o-sulfonamidophenol derivatives useful as dye releasing redox compounds in a color diffusion transfer color image forming process: ##STR1## wherein R.sup.1 and R.sup.2, which may be the same as or different from each other, each represents an alkyl group or an aryl group or they may combine and form a ring; R.sup.3 represents a hydrogen atom, an alkyl group or an aryl group; R.sup.4 represents an alkyl group or an aryl group; R.sup.5 represents an alkyl group, an alkoxy group, an alkylthio group, an arylthio group, a halogen atom or an acylamino group, or --CR.sup.1 R.sup.2 R.sup.3 and R.sup.5 may combine and form the nucleus ##STR2## which is condensed at the 6- and the 7-positions of the benzoxazole nucleus; and n is 0, 1 or 2.Type: GrantFiled: January 16, 1981Date of Patent: June 10, 1986Assignee: Fuji Photo Film Co., Ltd.Inventors: Shinsaku Fujita, Koichi Koyama, Yoshio Inagaki
-
Patent number: 4576885Abstract: A photographic silver dye bleach material which contains a compound of the formula ##STR1## in which R is a substituted alkyl, R.sub.1 is substituted or unsubstituted alkyl, p is 1 or 2, q is 0 or 1, p+q having to be 1 or 2, and n is 1 to 20, or a salt of this compound.The benzoquinones used deactivate bleach catalysts which diffuse beyond the silver image area produced by development of the exposed material. The silver dye bleach material containing these compounds is therefore distinguished by high contrast, high sharpness and good color reproduction.Type: GrantFiled: January 16, 1984Date of Patent: March 18, 1986Assignee: Ciba-Geigy AGInventors: Mario Fryberg, Heinrich Schaller, Rolf Steiger, Heinz Peter
-
Patent number: 4565775Abstract: In a process for the production of photographic images by the silver dye bleach process, a photograph material is used which, on a base, comprises at least one silver halide-free gelatin layer, which contains a diffusion-resistant bleachable image dye, the gelatin/dye ratio being at most 10:1, and a silver halide emulsion layer which is arranged directly on top of the former layer on the side facing the light source and is free of image dye, and the exposed material is processed in a dye and silver bleach bath which contains a combination of oxidizing agents of the formula (1a) with bleach catalysts of the formulae (2a) and (3), or of the oxidizing agent of the formula (1b) with bleach catalysts of the formula (2b).Type: GrantFiled: January 9, 1985Date of Patent: January 21, 1986Assignee: Ciba-Geigy AGInventor: Eddy Forte
-
Patent number: 4562138Abstract: This invention relates to nitrogen containing heterocyclic compounds represented by the general formula ##STR1## wherein Z is non-metallic atoms necessary to form a tetrazole, a benzotriazole or a benzothiazole, either substituted or unsubstituted, n is either 1 or 2 and R is alkyl or phenyl. The above mentioned compounds can be suitably used in a photographic material as a development inhibitor precursor.Type: GrantFiled: August 21, 1984Date of Patent: December 31, 1985Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: Morito Uemura, Kaoru Onodera
-
Patent number: 4546069Abstract: The processing time of exposed photographic silver dye bleach materials is shortened by using a bleach preparation which contains a strong acid, a water-soluble iodide, a water-soluble organic nitro compound, an anti-oxidizing agent, a bleach catalyst, an organic photographic developing agent and/or a benzotriazole derivate.Type: GrantFiled: July 18, 1984Date of Patent: October 8, 1985Assignee: Ciba-Geigy AGInventors: Arnost Libicky, Meinrad Schar
-
Patent number: 4535051Abstract: Photographic products and processes for the imagewise generation of a dye from a color shifted dye precursor of a preformed image dye, said precursor having at least one ##STR1## group, wherein R is hydrogen, alkyl, provided that the .alpha.- carbon does not have a hydrogen atom attached thereto, aryl such as phenyl or substituted phenyl, e.g. p-nitrophenyl, or heterocyclic such as pyridine; R.sub.1 -R.sub.6 are hydrogen, alkyl, preferably having from 1 to 6 carbon atoms, or aryl; n is 0 or 1; and T is a moiety containing a thiazolidin-2-yl group which upon silver-assisted cleavage of said thiazolidin-2-yl group results in the formation of a ##STR2## group, which may be protonated under the reaction conditions, followed by cleavage of said ##STR3## which cleavage is anchimerically assisted or accelerated by said ##STR4## to provide after protonation, an ##STR5## group in a dye chromophore. In a preferred embodiment the precursor is a substantially colorless compound.Type: GrantFiled: August 27, 1984Date of Patent: August 13, 1985Assignee: Polaroid CorporationInventors: Myron S. Simon, David P. Waller