Color Proofing Patents (Class 430/358)
  • Patent number: 5006449
    Abstract: A silver halide black and white photographic material for printing a developed transparent color photographic material is disclosed, which comprises a support having thereon at least one light-sensitive silver halide emulsion layer, wherein the emulsion layer is composed of a silver halide emulsion which maintains a spectral sensitivity substantially between 520 nm and 620 nm and contains substantially no iodine.
    Type: Grant
    Filed: June 13, 1989
    Date of Patent: April 9, 1991
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Ichizo Toya, Kunioki Ohmura, Masaki Okazaki
  • Patent number: 4994350
    Abstract: An image forming method suitable for forming a color proof is disclosed. The method comprises (1) a step for exposing a silver halide color photographic light-sensitive material, which is comprised of a support having thereon photographic component layers including a yellow image-forming blue-sensitive, a magenta image forming green-sensitive and a cyan image-forming red-sensitive emulsion layer, to light through a transparent black-and-white halftone image and (2) a step for processing the exposed light-sensitive material to form a color image, wherein the photographic component layers contain a yellow water-soluble dye, a magenta water-soluble dye and a cyan water-soluble dyes and reflective densities of the silver halide color photographic material measured with light of 450 nm, 550 nm and 700 nm are each not less than 0.8, and toe portion gradations of characteristic curves of yellow, magenta and cyan images formed in the light-sensitive material by the processing are each not less than 1.
    Type: Grant
    Filed: September 5, 1989
    Date of Patent: February 19, 1991
    Assignee: Konica Corporation
    Inventors: Takahiro Ogawa, Shun Takada
  • Patent number: 4994345
    Abstract: A method for making a color proof in a photo-mechanical process. The method comprises a step for exposing a silver halide color photographic light-sensitive material to light through a black-and-white halftone dot image, and a step for developing said silver halide color photographic light-sensitive material with a color developer. The photographic material is comprised of at least three silver halide emulsion layers which are different from each other in spectral sensitivity thereof, and at least one of these silver halide emulsion layers contains a specific yellow coupler and the color developer contains a specific color developing agent. A halftone color image having a color tone similar to that of image printed with printing inks can be obtained by the simplified process.
    Type: Grant
    Filed: June 5, 1989
    Date of Patent: February 19, 1991
    Assignee: Konica Corporation
    Inventors: Tomomi Yoshizawa, Keiji Ogi, Nariko Kimura
  • Patent number: 4968587
    Abstract: The method for producing color prints having high quality which are available for long-period conservation by using a color positive filter to make plural color separation negatives and black and white positives before printing through color filters on silver dye bleach film.
    Type: Grant
    Filed: April 6, 1988
    Date of Patent: November 6, 1990
    Assignee: Kabushiki Kaisha Doi
    Inventor: Keiziro Sekine
  • Patent number: 4943517
    Abstract: An imaging process which comprises the steps of:(i) providing a first radiation sensitive element comprising a transparent base having coated thereon at least three imaging media each capable of forming a color image upon imagewise exposure and processing, each of said imaging media capable of forming a color image having a maximum sensitivity at a wavelength different from the wavelengths of the maximum sensitivity of the other imaging media capable of forming a color image and the wavelength of the maximum absorption of the color image formed by each imaging medium differing from the wavelength of the maximum absorption of the color image formed by the other imaging media by at least 40 nm;(ii) obtaining color separation information representative of the cyan, magneta and yellow and optionally black content of a color original, or electronically generated image,(iii) exposing said first radiation sensitive element of step (i) to at least three independently modulated sources of radiation, each source being
    Type: Grant
    Filed: September 30, 1988
    Date of Patent: July 24, 1990
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Stephen R. Powers, Peter J. Finn, Michael G. Fisher
  • Patent number: 4925767
    Abstract: Process for controlling the visual appearance of an image present on a permanent support in the form of a hydrophilic colloid layer, layer system or relief pattern by the transfer of a continuous non-photosensitive layer from a temporary support onto said permanent support either before or after said image is formed thereon, which comprise by pre-wetting the permanent support either image-free or with said image already thereon, containing the pre-wetted support with said continuous layer carried on the temporary support, and stripping off the temporary support to leave the continuous layer adhering on the permanent support, said continuous layer being non-photosensitive and contains hardened gelatin, the gelatin being applied at a coverage of at most 20 g/m2 and having a degree of hardening corresponding with that achieved by the addition of at least 0.001 g of formaldehyde per gram of gelatin.
    Type: Grant
    Filed: December 14, 1988
    Date of Patent: May 15, 1990
    Assignee: AGFA-Gevaert, N.V.
    Inventors: Eddie R. Daems, Luc H. Leenders
  • Patent number: 4895787
    Abstract: This invention relates to positive working photopolymerizable sheet constructions which, upon exposure to an actinic radiation source through a screened image, can accurately reproduce said image. The construction is useful as a color proofing film which can be employed to accurately predict the image quality from a lithographic printing process.
    Type: Grant
    Filed: July 18, 1988
    Date of Patent: January 23, 1990
    Assignee: Hoechst Celanese Corporation
    Inventor: Stephan J. W. Platzer
  • Patent number: 4845000
    Abstract: A radiation-sensitive carrier body directly utilized as a stamper has a glass substrate, a first highly adhesive layer securely adhered to the substrate, a radiation-sensitive layer which discharges a gas component upon being irradiated with a laser beam and which locally forms a protuberance due to the absorbed energy, a second highly adhesive layer securely adhered to the specific material of the radiation-sensitive layer and which deforms in accordance with deformation of the layer, and a metal layer which has a high releasability to allow easy separation from a optical disk substrate material such as an acrylic material when the carrier body is used as a stamper substrate for manufacturing optical disks. A protuberance formed on the carrier body such as a continuous spiral protuberance allows formation of a corresponding spiral groove in the acrylic material, serving as a pre-track into which desired information will be digitally written by a user.
    Type: Grant
    Filed: December 4, 1986
    Date of Patent: July 4, 1989
    Assignee: Tokyo Shibaura Denki Kabushiki Kaisha
    Inventors: Yoshikatsu Takeoka, Nobuaki Yasuda, Akio Hori, Norio Ozawa
  • Patent number: 4837133
    Abstract: There is disclosed a photographic four-color material for the silver dye bleach process, which material, in addition to containing the customary yellow, magenta and cyan image dyes, contains a black layer which is sensitive to infra-red light.The material is suitable e.g. for testing dotted or continuous tone color separation positives.
    Type: Grant
    Filed: December 9, 1986
    Date of Patent: June 6, 1989
    Assignee: Ciba-Geigy AG
    Inventor: Jakob Kuhn
  • Patent number: 4818663
    Abstract: A radiation-sensitive element suitable for the preparation of half-tone color proofs comprising a substrate bearing at least four separate positive acting imaging media coated thereon, said imaging media including:(1) an imaging medium capable of forming a yellow image upon imagewise exposure and processing,(2) an imaging medium capable fo forming a magenta image upon imagewise exposure and processing,(3) an imaging medium capable of forming a cyan image upon imagewise exposure and processing, and(4) an imaging medium capable of forming a black image or a balancing black image upon imagewise exposure and processing,each imaging medium (1), (2) and (3) having a maximum spectral sensitivity at a wavelength different from that of the maxiumu sensitivity of the other imaging medium of (1) to (3), the imaging medium (4) having spectral sensitivity at each of the wavelengths of the maximum sensitivity of the other imaging media.
    Type: Grant
    Filed: April 2, 1987
    Date of Patent: April 4, 1989
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Stephen R. Powers, Thomas D. G. Hellings
  • Patent number: 4816378
    Abstract: An imaging process which comprises the steps of:(i) providing a first radiation sensitive element comprising a transparent base having coated thereon at least three imaging media each capable of forming a color image upon imagewise exposure and processing, each media having a maximum sensitivity at a wavelength different from of the other imaging media and the wavelength of the maximum absorption of the color image formed by each imaging medium differing from the other imaging media by at least 40 nm;(ii) obtaining color separation information representative of the cyan, magenta and yellow and optionally black content of a color original, or electronically generated image,(iii) exposing said first radiation sensitive element of step (i) to at least three independently modulated sources of radiation, such that a latent image representative of at least the cyan, magenta and yellow information of step (ii) is formed in individual color forming media;(iv) processing said exposed radiation sensitive element to pro
    Type: Grant
    Filed: April 13, 1987
    Date of Patent: March 28, 1989
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Stephen R. Powers, Peter J. Finn, Michael G. Fisher
  • Patent number: 4810602
    Abstract: Method and apparatus for improving the perceptibility of details on a hard-copy of a color image and for matching the color of a displayed image and a color hard-copy of the same image. In addition to the recording of the color information, at least one white light exposure modulated by the information of at least one color separation record is performed.
    Type: Grant
    Filed: November 24, 1987
    Date of Patent: March 7, 1989
    Assignee: Agfa-Gevaert, N.V.
    Inventors: Guido R. Wittocx, Emile P. Schoeters
  • Patent number: 4705745
    Abstract: A radiation-sensitive element for half tone color proofing adapted to be exposed by scanning with four independently modulated sources of radiation emitting at different wavelengths within the range 550 to 900 nm, the element comprising a substrate bearing at least four separate imaging media coated thereon, said imaging media including:(1) an imaging medium capable of forming a yellow image upon imagewise exposure and processing,(2) an imaging medium capable of forming a magenta image upon imagewise exposure and processing,(3) an imaging medium capable of forming a cyan image upon imagewise exposure and processing, and(4) an imaging medium capable of forming a black or a balancing black image upon imagewise exposure and processing,each imaging medium having a maximum spectral sensitivity at a wavelength different from that of the maximum sensitivity of the other imaging media such that after exposure and processing super-imposed yellow, magenta, cyan and black or balancing black images are formed, each image
    Type: Grant
    Filed: March 3, 1986
    Date of Patent: November 10, 1987
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Jonathan P. Kitchin, Stephen R. Powers, Keith A. Penfound, Peter J. Finn, Michael G. Fisher
  • Patent number: 4666817
    Abstract: A light-sensitive color-proofing sheet is described for producing an image on various substrates. A light-sensitive continuous color layer is releasably attached to a carrier. Overlaying the color layer is a water-insoluble transparent colorless barrier layer. On the opposite surface of the barrier layer is a thermally laminable adhesive layer. Upon lamination of the sheet to a substrate, removal of the carrier and exposure to actinic radiation, the color layer is formed into an image, photomechanically, by removal of the non-image areas.
    Type: Grant
    Filed: December 30, 1985
    Date of Patent: May 19, 1987
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Leonard W. Sachi
  • Patent number: 4657831
    Abstract: Electrophotographic color proofs of half-tone dot pattern images are made which closely simulate the dot gain of prints made with lithographic plates and liquid inks. In forming the color proof, a thin transparent plastic sheet having on one side an electrophotographic toner dot pattern image is laminated to a reflective support with the toner image side in contact with the support. A thicker transparent plastic sheet is laminated to the other side of the thin sheet. The resulting color proof comprising a toner dot pattern on a reflective support and covered by a thin transparent layer and a thicker transparent layer has an apparent increase in dot size which simulates that of a press print.
    Type: Grant
    Filed: March 11, 1986
    Date of Patent: April 14, 1987
    Assignee: Eastman Kodak Company
    Inventors: Joseph H. Ambro, Lawrence E. Contois
  • Patent number: 4600669
    Abstract: An electrophotographic proofing element is described comprising a photoconductive layer on an electrically conducting substrate, capable of transmitting actinic radiation to which the photoconductive layer is responsive, and a dielectric support, releasably adhered to the substrate, comprising the photoconductive layer or an overcoat thereof forming a surface of the element capable of holding an applied electrostatic charge. To use the element, the surface of the dielectric support is charged, and the photoconductive layer is imagewise-exposed to actinic radiation, thereby forming a developable electrostatic image on the dielectric surface. The electrostatic image, in turn, is developed with toner to form a first color image. A composite color image is formed on the element by repeating the sequence one or more times with imagewise exposure of the photoconductive layer to actinic radiation transmitted through the transparent support, and developing over each preceding image with a different color toner.
    Type: Grant
    Filed: September 6, 1985
    Date of Patent: July 15, 1986
    Assignee: Eastman Kodak Company
    Inventors: Yee S. Ng, Lawrence E. Contois, John D. Mitchell, James D. Walling
  • Patent number: 4571373
    Abstract: The exposure latitude of positive-acting, color pre-press proofing photosensitive articles can be improved by positioning an optical filter between the separation half-tone positive and the photosensitive article.
    Type: Grant
    Filed: June 11, 1984
    Date of Patent: February 18, 1986
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Arlene K. Musser, Peter M. Koelsch
  • Patent number: 4568627
    Abstract: Disclosed is a chromatic proofreading film which may be conveniently used for the process of ascertaining the color quality in multi-color printing by overlaying color picture images produced from the corresponding color separated picture images. The chromatic proofreading film of this invention has two photosensitive layers, the outer one consisting of a silver halide photosensitive material and the inner one consisting of a non silver salt photosensitive material such as diazo or azide resin, and the inner photosensitive layer is divided into a plurality of regions dyed to different basic colors so that the chromatic proofreading film may be cut apart into a plurality of separate sheets which may be overlaid for the purpose of chromatic proofreading after the film is photographically developed.
    Type: Grant
    Filed: July 5, 1983
    Date of Patent: February 4, 1986
    Assignee: Dainippon Screen Seizo Kabushiki Kaisha
    Inventors: Tokujiro Ishida, Syuzi Kondo, Keiji Toei
  • Patent number: 4469025
    Abstract: A device for film-mounting print control strips at a precise level and in registry including a foil forming a template for a mounting foil when mounting a print control strip, the foil template containing ink and measuring-field information necessary for the film mounting at a precise level and in registry, and further containing a characteristic of printing plate centers.
    Type: Grant
    Filed: May 26, 1983
    Date of Patent: September 4, 1984
    Assignee: Heidelberger Druckmaschinen
    Inventors: Gerhard Loffler, Franz Arendt
  • Patent number: 4427761
    Abstract: Process for modifying the tacky surface of a surprint multicolor proof having at least two nonplanar, nonsilver halide colored photoimaged elements bonded to a support and an outer photosensitive tacky layer whereby at least one particulate material, 0.1 to 20.mu. average particle size, having an oil absorbtivity of at least 30% by weight based on the weight of particulate material determined by Gardner-Coleman Method, ASTM D-1483-60 treated with at least 5% by weight of a transparentizing oil liquid having a boiling point greater than 100.degree. C. whereby the treated particulate material is applied to the tacky surface and the excess material is removed. The proofs obtained are excellent matches to press proofs on various surfaces.
    Type: Grant
    Filed: December 2, 1982
    Date of Patent: January 24, 1984
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Magalie M. Charles
  • Patent number: 4427757
    Abstract: A tannable photographic element and method therefore, the element comprising a uniquely treated opaque, translucent, or transparent base support and having at least one pigment in reactive association with the silver halide emulsion layer is useful in the graphic arts. The base support comprises an extremely thin gelatin subbing layer substantially free of hardener, or no subbing at all, on a primed base support.
    Type: Grant
    Filed: May 18, 1983
    Date of Patent: January 24, 1984
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: George W. Beebe, Michael T. Macioch
  • Patent number: 4425417
    Abstract: The reproduction of one or more target colors on photographic media directly by use of a light source and a selected group of color filters, such as for preparation of a multi-color pre-press color proof, each of the target colors being reproduced by:(a) illuminating the target color with the given light source or equivalent thereof and determining the proportion of the three primary colors which constitute said target color by comparing the target color to a color reference data base comprising a plurality of colors constituted of said primary colors under illumination by a like light source whereby to select from said data base a reference color most similar to the target color and thereby identify a group of one or more color filter elements usable to reproduce the reference color;(b) determining the exposure time of each color filter element required substantially to reproduce the reference color and thus the target color on the color sensitive photographic material when developed;(c) exposing undeveloped
    Type: Grant
    Filed: March 1, 1982
    Date of Patent: January 10, 1984
    Inventors: Marjorie D. Ingalls, Richard D. Ingalls
  • Patent number: 4370402
    Abstract: There is disclosed an aqueous composition for removing or reducing the intensity of dyes in dye transfers and the intensity of dyes used by photo retouchers on transparencies and color prints. The composition comprises, per 100 parts by weight of water, from about 1 to about 10 parts by weight of a thiourea and from about 5 to about 20 parts by weight of an ammonium nitrate compound. Application of this composition to dye transfers and/or to dyes used by photo retouchers on transparencies and color prints proportionally removes magenta, cyan and yellow dyes therefrom.
    Type: Grant
    Filed: September 24, 1980
    Date of Patent: January 25, 1983
    Inventor: Harry Anderson
  • Patent number: 4366223
    Abstract: Image color faithfulness can be improved by permanent lamination of the individual proofing sheets. Color proofing sheets are used with transparent, colorless adhesive on the backside of the sheets.
    Type: Grant
    Filed: March 9, 1981
    Date of Patent: December 28, 1982
    Inventor: Gerald W. Larson
  • Patent number: 4339525
    Abstract: Photopolymerizable elements are described comprising a sheet support, a photopolymerizable layer having a thickness of, at most, 0.0006 inch (0.015 mm.) and an optical density of at least 3.0 in the actinic region. Resist images made from these elements may be etched by a process of chemically undercutting the image areas and then spraying or rubbing them. At least two dot-etched photopolymerizable elements, each exposed through a different color separation negative and colored accordingly, are placed in registration to form a color proofing system.
    Type: Grant
    Filed: December 31, 1979
    Date of Patent: July 13, 1982
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Martin D. Bratt, Abraham B. Cohen
  • Patent number: 4334009
    Abstract: Process for modifying tacky surfaces, e.g., tacky layer on a photograph or other photochemically produced record, which comprises applying an admixture of particulate material and carrier particles and removing the excess particulate material and carrier particles. The ratio of average particle diameter of the carrier particles to average particle diameter of the particulate material is greater than 2 and the weight ratio of particulate material to carrier particles is less than 1. The degree of surface modification, e.g., light reflectivity, etc., can be controlled by the process.
    Type: Grant
    Filed: September 23, 1980
    Date of Patent: June 8, 1982
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Magalie M. Charles, Robert B. Heiart
  • Patent number: 4329420
    Abstract: This disclosure relates to a method of protecting pre-press and pre-plate proofs in a non-costly manner by applying a cover sheet of hard thin clear plastic having a pressure sensitive backing. The cover sheet can be polyester, polyethylene, Mylar, etc.
    Type: Grant
    Filed: September 10, 1980
    Date of Patent: May 11, 1982
    Inventor: Ferdinand L. Bopp
  • Patent number: 4311783
    Abstract: Photoimaging compositions comprising (A) 2,4,5-triphenylimidazolyl dimer having selected substituents on the 2,4 and 5 phenyl rings and an extinction coefficient determined in methylene chloride at 10.sup.-5 to 10.sup.-3 mol/liter at 350 nm of at least 4000 liters/mol-cm and at 400 nm of at least 250 liters/mol-cm; and at least one of (B1) leuco dye or (B2) addition polymerizable ethylenically unsaturated monomeric compound. The new imaging compositions are useful in preparing dual response photoimaging products such as proofing papers, printout paper, overlay films and photopolymerizable elements. Improved imaging speed is achieved at equal concentration levels when compared with conventional 2,4,5-triphenylimidazolyl dimers.
    Type: Grant
    Filed: July 17, 1980
    Date of Patent: January 19, 1982
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Rolf Dessauer
  • Patent number: 4309496
    Abstract: A method of optimizing reproduction processes including the steps of preparing a physical standard, measuring the filtration and exposure values or densities used in preparing the standard, separating the image used in producing the standard into its color constituents using filtration values that are a function of those employed in making the standard, using a reproduction process to make many replicates of the standard, comparing representative samples of the replicate with the standard upon which the separations were based to measure the average difference in densities between the standard and such replicates, adjusting the filtration used in making the separations in response to such average differences until subsequent comparisons between subsequent standards yield average differences between acceptable, predetermined limits.
    Type: Grant
    Filed: September 10, 1980
    Date of Patent: January 5, 1982
    Inventor: Dennis B. Miller
  • Patent number: 4304836
    Abstract: A process for making a multicolored reproduction combining overlay and surprint characteristics in which a photohardenable layer, such as a photopolymerizable layer, is cast on a semi-rigid, transparent, support film, the photohardenable layer is exposed in an appropriate exposure unit through a color negative representing one color, the exposed layer is developed to remove the unexposed areas and leave the exposed image areas, an adhesive layer, such as an acrylic adhesive, is coated on a release sheet, the coated release sheet is contacted with a receptor sheet at a temperature and pressure sufficient to transfer the adhesive to the sheet, the developed layer is contacted with the adhesive coated sheet at a temperature and pressure sufficient to transfer the image areas to the sheet and the steps of casting a photohardenable layer, exposing the layer, developing the layer and contacting the image areas with the sheet is repeated for each additional color desired.
    Type: Grant
    Filed: June 3, 1977
    Date of Patent: December 8, 1981
    Assignee: American Hoechst Corporation
    Inventors: Zafarullah K. Cheema, Oliver A. Barton
  • Patent number: 4277555
    Abstract: Aluminum substrate suitable for making lithographic plates which has been treated to render the surface hydrophilic and negatively charged and thereafter ionically colored with a cationic dye.
    Type: Grant
    Filed: October 12, 1979
    Date of Patent: July 7, 1981
    Assignee: Howard A. Fromson
    Inventors: Howard A. Fromson, Robert F. Gracia
  • Patent number: 4262071
    Abstract: Pre-press or photomechanical color proofs of half-tone printed products do not faithfully match the color tone values of the final half-tone printed product. This problem occurs from the fact that the printing press, in its mechanical operation, produces half-tone dots on the substrate which are larger than the dots on the printing plate or separation negative itself. It has been found that the proper tonal values for gauging the final results from the press can be obtained in the pre-press color proof by the insertion of a spacer layer between the opaque base and the applied pigment or dye containing layers.
    Type: Grant
    Filed: August 20, 1979
    Date of Patent: April 14, 1981
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Gerald W. Larson
  • Patent number: 4259423
    Abstract: A color photography printing process prints, a test print on the basis of color intensities of three color ranges transmitted through a small selected area of a test print. The exposure times for the three ranges are recorded besides the print in machine readable code. In the making of the final print the machine readable code controls the printing time. The times determined by the machine readable code may be corrected during the making of the final print by corrections determined by an expert observer of the test print.
    Type: Grant
    Filed: January 23, 1979
    Date of Patent: March 31, 1981
    Assignees: Armando M. Merlo, Angelo Balsamo
    Inventor: Armando M. Merlo