Antihalation Or Filter Layer Containing Patents (Class 430/510)
  • Patent number: 5302499
    Abstract: A color photographic recording material is disclosed which contains tabular silver halide emulsion grains of specified dimensions in at least two color records to enable improved speed and sharpness.
    Type: Grant
    Filed: April 16, 1992
    Date of Patent: April 12, 1994
    Assignee: Eastman Kodak Company
    Inventors: James P. Merrill, Lois A. Buitano, Allan F. Sowinski, Richard P. Szajewski
  • Patent number: 5300409
    Abstract: A method of processing a light-sensitive silver halide photographic material is disclosed. The method comprises a processing steps of developing, fixing and a washing or stabilizing, wherein a replenishing solution for the washing or the stabilizing step is an amount of not more than 3 liters per square meter of the light-sensitive material. The photographic material comprises a support, and a hydrophilic colloidal layer on each of the both side of the support, wherein either one of the hydrophilic colloidal layers contains a dye represented by a specific chemical formula.
    Type: Grant
    Filed: November 9, 1990
    Date of Patent: April 5, 1994
    Assignee: Konica Corporation
    Inventors: Hiroyuki Ushiroyama, Kazuhiro Yoshida
  • Patent number: 5298377
    Abstract: A photographic element is described havinga photographic support;a green sensitive silver halide emulsion layer on the photographic support and having a magenta dye-forming coupler, anda filter layer on the photographic support and associated with the green sensitive layer, wherein the magenta dye-forming coupler is a 2-equivalent magenta dye-forming coupler, and the filter layer includes a filter dye molecule having the formula:D.dbd.CH--M (I)wherein D is a group which, with the remainder of the molecule, forms a dye having an absorption maximum in the blue or green region of the visible spectrum, andM is a five-membered or six-membered unsaturated heterocyclic ring, which may be fused with another five-membered or six-membered ring system, and which is unsubstituted or substituted with a lower alkyl group having from 1 to 10 carbon atoms, or an electron withdrawing group.
    Type: Grant
    Filed: August 28, 1991
    Date of Patent: March 29, 1994
    Assignee: Eastman Kodak Company
    Inventor: Arlyce T. Bowne
  • Patent number: 5298379
    Abstract: A radiation detecting element, particularly a photographic element having a radiation detecting composition, in particular a silver halide emulsion. The composition provides the element with a wavelength of peak sensitivity, .lambda.peaksens, and a decreasing sensitivity around .lambda.peaksens. An absorber dye of defined characteristics is chosen, which has the effect of decreasing the change in sensitivity which the element otherwise has without the absorber dye (that is, the absorber dye increases the wavelength range over which the sensitivity is relatively constant). The element is preferably sensitive to infra-red.
    Type: Grant
    Filed: June 30, 1992
    Date of Patent: March 29, 1994
    Assignee: Eastman Kodak Company
    Inventors: Anthony Adin, Richard L. Parton
  • Patent number: 5298381
    Abstract: A direct positive type silver halide photographic light-sensitive material is disclosed, having improved safelight stability and which is capable of providing an image having excellent photographic properties. The light-sensitive material comprises a support having thereon at least one pre-fogged light-sensitive silver halide emulsion layer and at least one light-insensitive hydrophilic colloid layer provided farther from the support than the light-sensitive silver halide emulsion layer. The light-insensitive hydrophilic colloid layer contains a dye dispersed therein in the form of microcrystalline particles.
    Type: Grant
    Filed: March 5, 1992
    Date of Patent: March 29, 1994
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Nobuaki Inoue, Takahiro Goto
  • Patent number: 5298378
    Abstract: A photographic element is detailed which provides for improved resolution by decreasing the blue and ultraviolet radiation typically associated with internal scatter and print-through. These and other improvements are provided in a photographic element comprising a support having thereon at least one hydrophilic colloid layer, wherein at least one said hydrophilic colloid layer comprises a radiation sensitive silver halide emulsion layer, at least one said hydrophilic colloid layer comprises a filter dye consisting essentially of a compound with generic formula: ##STR1## wherein: A represents a counterion chosen from the set consisting of lithium, sodium, potassium, ammonium and alkylammonium of 1 to 15 carbons;Z represents the atoms chosen from the group consisting of carbon, sulfur, nitrogen, oxygen and selenium necessary to form an optionally substituted ring.
    Type: Grant
    Filed: March 19, 1993
    Date of Patent: March 29, 1994
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Dietrich M. Fabricius
  • Patent number: 5298192
    Abstract: Disclosed is a subbing composition for polyesters, comprising a dye, a hydrophilic colloid, and a latex, wherein said dye is dispersed in the form of fine solid grains which are substantially insoluble in water at a pH of 6 or less, and are substantially soluble in water at a pH of 8 or more, and said latex has a glass transition temperature of 35.degree. C. or lower, and a method for coating thereof. In addition, a subbing layer-coated article is disclosed wherein said subbing composition is coated on a polyester base. Finally, a silver halide photographic material is disclosed wherein a photographic emulsion layer is coated on said subbing layer-coated article.
    Type: Grant
    Filed: May 10, 1993
    Date of Patent: March 29, 1994
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Yasushi Hattori, Nobuyuki Sugiyama, Akira Hatakeyama
  • Patent number: 5296344
    Abstract: There is disclosed a silver halide photographic light-sensitive material containing a dye which colors a specific layer in the light-sensitive material and furthermore is quickly decolored and/or eluted during a development processing. The light-sensitive material contains at least one compound represented by the following formula (1), (2) or (3): ##STR1## wherein R.sup.11 represents a hydrogen atom, an alkyl group, an aryl group, --COOR.sup.16, or --CONR.sup.16 R.sup.17 ; R.sup.12, R.sup.13 and R.sup.14 each represents a hydrogen atom, an alkyl group, and an aryl group; R.sup.15 represents a hydrogen atom, an alkyl group, an aryl group, or an amino group; R.sup.13 and R.sup.14 may be combined to form a 6-membered ring; and R.sup.16 and R.sup.17 each represents a hydrogen atom, an alkyl group, and an aryl group; provided that the compound represented by formula (1) does not have a carboxy group or a salt thereof as a substituent; ##STR2## wherein R.sup.1 represents an alkyl group or an aryl group; R.sup.
    Type: Grant
    Filed: June 9, 1992
    Date of Patent: March 22, 1994
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Yoshihiro Jimbo, Toshiyuki Watanabe
  • Patent number: 5290670
    Abstract: An infrared sensitive silver halide photographic element which contains an infrared-absorbing dye represented by the following formula ##STR1## wherein: R.sub.1 and R.sub.2 each independently represents a sulfoalkyl or a sulfatoalkyl group,Q represents the atoms necessary to complete a 5- to 6- membered carbocyclic ring,Z.sub.3 represents the atoms necessary to complete a 5-membered N-containing aromatic ring,X.sup.- represents an anion,n is an integer of 1 or 2, provided that n is 1 when the dye forms an intramolecular salt, andZ.sub.1 and Z.sub.2 each independently represents the atoms necessary to complete a substituted or unsubstituted indole nucleus.
    Type: Grant
    Filed: July 9, 1992
    Date of Patent: March 1, 1994
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Ivano Delprato, Stefano Mana, Antonio Luzzi
  • Patent number: 5288604
    Abstract: A silver halide photographic material is disclosed, comprising at least one sensitizing dye represented by formula (I): ##STR1## wherein V.sub.1, V.sub.2, V.sub.3, V.sub.4, V.sub.5 and V.sub.6 each represents a substituent with the total of the Hammett's constants of all the substituents being less than -0.27, R.sub.1 and R.sub.2 each represents an alkyl group, L.sub.1, L.sub.2, L.sub.3, L.sub.4, L.sub.5, L.sub.6 and L.sub.7 each represents a methine group, m represents 0 or 1, Z represents an atomic group necessary for forming a 5-membered or 6-membered nitrogen-containing hetero ring, X.sub.n represents a charge balancing counter ion(s), n has a value of at least 0 which is necessary for neutralizing the charge of the compound. The material has a high sensitivity to infrared rays and gives an image of high quality with little remaining color. Also disclosed is a method for processing such a silver halide photographic material.
    Type: Grant
    Filed: April 30, 1992
    Date of Patent: February 22, 1994
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Yuji Mihara, Takashi Kato, Takanori Hioki
  • Patent number: 5288570
    Abstract: A composite film article which is a flexible, heat resistant polymeric film material having a non-opaque, partially translucent white surface side, having a visible light opacity of from about 0.90 to about 0.99; and a non-opaque, black surface side having a visible light opacity of less than 1.0, a transmission density of less than about 2.0 and a thickness of less than about 5.0 microns. The article may be used as a base for images such that the images have a reduced optical dot gain.
    Type: Grant
    Filed: August 12, 1992
    Date of Patent: February 22, 1994
    Assignee: Hoechst Celanese Corporation
    Inventors: Robert J. von Trebra, Dennis J. Bellville
  • Patent number: 5288600
    Abstract: A silver halide photographic material having at least one hydrophilic colloid layer containing a dispersion obtained by emulsifying and dispersing a mixed solution containing at least one oil-soluble dye and at least one water-insoluble, organic solvent-soluble polymer.
    Type: Grant
    Filed: August 20, 1992
    Date of Patent: February 22, 1994
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Junichi Yamanouchi, Yoshihiro Jimbo, Toshiyuki Watanabe, Koji Tamoto, Yukio Karino, Kei Sakanoue
  • Patent number: 5281513
    Abstract: A silver halide photographic material is disclosed, comprising a support having on one side thereof (1) at least one light-sensitive silver halide emulsion layer and (2) at least one light-insensitive hydrophilic colloid layer containing a dye dispersed in the form of fine solid particles in which the light-sensitive silver halide emulsion layer is located between the support and the light-insensitive layer; and having on the other side thereof at least one light-insensitive backing layer, wherein the backing layer has a absorbance at 320 to 400 nm of 0.50 to 0.90.
    Type: Grant
    Filed: October 21, 1992
    Date of Patent: January 25, 1994
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Takahiro Goto, Nobuaki Inoue
  • Patent number: 5275929
    Abstract: A photographic recording material is disclosed which contains tabular silver halide emulsion grains of specified dimensions to enable improved sharpness.
    Type: Grant
    Filed: April 16, 1992
    Date of Patent: January 4, 1994
    Assignee: Eastman Kodak Company
    Inventors: Lois A. Buitano, Allan F. Sowinski, James P. Merrill, Richard P. Szajewski
  • Patent number: 5272050
    Abstract: There is disclosed a silver halide photographic material, which comprises a compound represented by the following formula (I): ##STR1## wherein R.sub.1 and R.sub.2 each represent a hydrogen atom or a group being capable of substitution; W represents a nitrogen atom or a carbon atom; Z represents --Y.sub.1 --(R.sub.3).sub.n2 or R.sub.3 in which R.sub.3 represents a hydrogen atom or a group being capable of substitution; n.sub.0, n.sub.1, and n.sub.2 each are 0 or 1; h is 1 or 2; R.sub.1, R.sub.2, and R.sub.3 may bond together to form a carbocyclic ring or a heterocyclic ring; when n.sub.1 and n.sub.2 each are 1, Y.sub.1 represents --CO--, --C(.dbd.NR.sub.4)--, --C(.dbd.S)--, --C(.dbd.N.sup.+ R.sub.5 R.sub.6)--, --SO--, --SO.sub.2 --, --C(.dbd.CR.sub.7 R.sub.8)--, --R.sub.6 C.dbd.N--, or --R.sub.6 C.dbd.CR.sub.9 --, in which R.sub.4, R.sub.5, R.sub.6, R.sub.7, R.sub.8, and R.sub.9 each represent a hydrogen atom or a group being capable of substitution; when n.sub.1 and n.sub.2 each are 0, Y.sub.
    Type: Grant
    Filed: July 9, 1992
    Date of Patent: December 21, 1993
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Tetsunori Matsushita, Yoko Idogaki
  • Patent number: 5270158
    Abstract: A light-sensitive silver halide color photographic material is disclosed. The light-sensitive material comprises a support and a silver halide emulsion layer and a non-light-sensitive hydrophilic colloid layer provided on the support. The emulsion layer comprises a mixture of at least two kinds of silver halide emulsions which different from each other in sensitivity. The emulsion layer contains a magenta coupler represented by Formula II and the non-light-sensitive layer contains a compound represented by formula II: ##STR1## wherein Ar is an aryl group; Y is a hydrogen atom or a substituent capable of releasing upon reaction with the oxidation product of a color developing agent; X is a halogen atom, an alkoxy group or an alkyl group; n is an integer of 0 to 4, Xs are the same or different when n is 2 or more; R is a strait chain or branched alkyl group having 1 to 20 carbon atoms, ##STR2## wherein R.sub.1 and R.sub.
    Type: Grant
    Filed: May 26, 1992
    Date of Patent: December 14, 1993
    Assignee: Konica Corporation
    Inventors: Hiroshi Nakatsugawa, Takaaki Kojima
  • Patent number: 5266452
    Abstract: A photographic element containing a thermal-dye-bleach construction includes a thermal nucleophile-generating agent in association with a polymethine dye having a nucleus of general formula (I): ##STR1##
    Type: Grant
    Filed: April 30, 1992
    Date of Patent: November 30, 1993
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Jonathan P. Kitchin, Mark P. Kirk, Dian E. Stevenson, Randall H. Helland
  • Patent number: 5266454
    Abstract: Solid particle dispersions of dyes according to the formula: ##STR1## wherein D is selected from the group consisting of ##STR2## are disclosed as filter dyes for photographic elements. In this formula, R.sup.1, R.sup.2, R.sup.3, and R.sup.4 are each independently hydrogen, substituted or unsubstituted alkyl, or substituted or unsubstituted aryl. R is a carboxy or sulfonamido substituent. L.sup.1 through L.sup.5 are each independently substituted or unsubstituted methine groups, and m is 0 or 1. The dyes of the invention are particularly useful as filter dyes for light in the ultraviolet and short blue wavelength regions of the spectrum.
    Type: Grant
    Filed: March 1, 1993
    Date of Patent: November 30, 1993
    Assignee: Eastman Kodak Company
    Inventors: Donald R. Diehl, Glenn M. Brown
  • Patent number: 5264339
    Abstract: In a method for the manufacture of a recording material containing a coated and dried gelatin containing layer on a support, the improvement wherein such layer is coated from an aqueous coating composition containing:(1) hydrophilic colloid matter consisting of at least 90% by weight of gelatin,(2) not more than 5% by weight with respect to the total gelatin content of a thickening agent increasing the viscosity of said composition, and(3) a hardening agent for gelatin that reduces its water-solubility after coating, characterized in that said gelatin is a gelatin species which as a 10% by weight aqueous solution at 36.degree. C. and pH 6 has a viscosity of at least 35 Mpa.s at a shear rate of 1000 S.sup.-1 and shows a decrease in viscosity by at least 10 Mpa.s at a shear rate of 40,000 s.sup.-1, and as a 3% by weight aqueous solution at Ph 6 and after cooling for 30 seconds at a shearing rate of 208 s.sup.
    Type: Grant
    Filed: September 4, 1992
    Date of Patent: November 23, 1993
    Assignee: Agfa-Gevaert N.V.
    Inventors: Bernard H. Tavernier, Frank P. Michiels
  • Patent number: 5264333
    Abstract: A silver halide photographic material has at least one hydrophilic colloid layer containing a dispersion obtained by emulsifying and dispersing a solution containing at least one oil-soluble dye and at least one water-insoluble, organic solvent-soluble polymer having at least one repeating unit represented by the following general formula (I): ##STR1## wherein R.sup.1 represents a hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 4 carbon atoms, or a halogen atom; R.sup.2 and R.sup.3 may be the same or different and each represents a substituted or unsubstituted alkyl group or a substituted or unsubstituted aryl group; L represents a bivalent bonding group; and n.sub.1 represents 0 or 1.
    Type: Grant
    Filed: February 25, 1993
    Date of Patent: November 23, 1993
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Junichi Yamanouchi, Satoru Toda, Koji Tamoto
  • Patent number: 5254447
    Abstract: Photographic glass plates are advantageously prepared by a process in which the functional layers are applied to the glass plate support by lamination. In a first form of this process, a multilayer-composite comprising antihalation, silver halide emulsion and protective overcoat layers is transferred from a flexible polymeric film support to the glass support. In carrying out this first form of the process, a release layer, protective overcoat layer, silver halide emulsion layer and antihalation layer are coated, in order, on a flexible polymeric film and laminated via an adhesive layer to a glass plate having suitable thickness and flatness for use as a photographic support. The release layer is designed to have greater adhesion to the flexible polymeric film than to the protective overcoat layer, whereby the film and release layer can be stripped off prior to the plate being put into use.
    Type: Grant
    Filed: April 20, 1992
    Date of Patent: October 19, 1993
    Assignee: Eastman Kodak Company
    Inventors: Arlene L. Meyer, Thomas M. Smith, Richard O. Smith
  • Patent number: 5252424
    Abstract: The invention provides a photographic element comprising a paper substrate with a polyolefin coating provided on at least one surface, a hydrophilic colloid layer on the polyolefin coating, and at least one light sensitive silver halide emulsion above the hydrophilic colloid layer, wherein said hydrophilic colloid layer comprises a removable antihalation material and from about 20 to 80 percent by weight of a white pigment, and from about 15 to 35 percent by weight of hollow microspheres having a diameter of from about 0.1 to about 1 .mu.m.
    Type: Grant
    Filed: September 4, 1992
    Date of Patent: October 12, 1993
    Assignee: Eastman Kodak Company
    Inventors: Erika M. Sato, Peter D. Marsden
  • Patent number: 5246823
    Abstract: A photographic element according to the invention includes a reflective support, one or more photosensitive silver halide emulsion layers, and a colored antihalation layer interposed between the support and the photosensitive layers. The antihalation layer comprises thin grains of silver in the form of platelets having a thickness of up to about 20 nm. The platelets are distributed in a suitable matrix or colloidal medium such as gelatin. The thinness of the platelets allows the antihalation layer to be formed effectively at lower silver levels.
    Type: Grant
    Filed: May 14, 1991
    Date of Patent: September 21, 1993
    Assignee: Eastman Kodak Company
    Inventor: David C. Shuman
  • Patent number: 5244784
    Abstract: An improved silver halide photographic materials comprising a support and a photographic layer unit thereon. The improvement is such that said photographic layer unit comprises a light sensitive layer having silver halide grains, of which a chloride content is not less than 30 mol %, and said photographic layer unit comprises not more than 2.8 g/m.sup.2 of gelatin, and a portion not less than 50 wt % of said gelatin has a jelly strength of not less than 240.
    Type: Grant
    Filed: February 28, 1991
    Date of Patent: September 14, 1993
    Assignee: Konica Corporation
    Inventors: Tomonobu Moriya, Kazuhiro Yoshida
  • Patent number: 5238798
    Abstract: A silver halide photographic material having on a support a hydrophilic colloid layer containing at least one 2-pyrazoline-5-one oxonol dye represented by formula (I) in the form of a dispersion of fine solid particles thereof; ##STR1## wherein R.sup.1 represents a hydrogen atom, an aryl group, a cyano group, a halogen atom, --COOR.sup.2, --COR.sup.3, --ONR.sup.3 R.sup.4, --OR.sup.2, --NHCOR.sup.3, or --NR.sup.3 R.sup.4 (wherein R.sup.2 represents an alkyl group or an aryl group and R.sup.3 and R.sup.4 each represents a hydrogen atom, an alkyl group, or an aryl group); and L.sup.1, L.sup.2, L.sup.3, L.sup.4, and L.sup.5 each represents a methine group.
    Type: Grant
    Filed: April 27, 1992
    Date of Patent: August 24, 1993
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Takashi Usami
  • Patent number: 5238799
    Abstract: Disclosed is a silver halide photographic material having a hydrophilic colloid layer which contains a dispersion of fine solid grains of at least one dye of formula (I): ##STR1## where R.sub.1 and R.sub.2 each represents an alkyl group, an aryl group, a cyano group or a group of COOR.sub.3, COR.sub.3, CONR.sub.4 R.sub.5, NR.sub.4 R.sub.5, NR.sub.4 COR.sub.3, NR.sub.4 CONR.sub.4 R.sub.5, OR.sub.3, SR.sub.3, SOR.sub.3 or SO.sub.2 R.sub.3 ; R.sub.3 being an alkyl group or an aryl group, and R.sub.4 and R.sub.5 each being a hydrogen atom, an alkyl group or an aryl group, and R.sub.3 and R.sub.4 or R.sub.4 and R.sub.5 being optionally bonded to each other to form a 5-membered or 6-membered ring; L.sub.1, L.sub.2 and L.sub.3 each represents a methine group; and n represents 0 or 1; provided that R.sub.1, R.sub.2, L.sub.1, L.sub.2 and L.sub.3 must not have an ionizable proton-having group or a salt thereof.
    Type: Grant
    Filed: September 17, 1992
    Date of Patent: August 24, 1993
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Takashi Usami, Shigeru Ohno, Yoko Idogaki
  • Patent number: 5232825
    Abstract: Disclosed is a subbing composition for polyesters, comprising a dye, a hydrophilic colloid, and a latex, wherein said dye is dispersed in the form of fine solid grains which are substantially insoluble in water at a pH of 6 or less, and are substantially soluble in water at a pH of 8 or more, and said latex has a glass transition temperature of 35.degree. C. or lower, and a method for coating thereof. In addition, a subbing layer-coated article is disclosed wherein said subbing composition is coated on a polyester base. Finally, a silver halide photographic material is disclosed wherein a photographic emulsion layer is coated on said subbing layer-coated article.
    Type: Grant
    Filed: April 3, 1992
    Date of Patent: August 3, 1993
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Yasushi Hattori, Nobuyuki Sugiyama, Akira Hatakeyama
  • Patent number: 5229262
    Abstract: A silver halide photographic material comprising a support having thereon at least one silver halide photographic emulsion layer containing at least one sensitizing dye represented by formula (I) and at least one compound represented by formula (II). ##STR1## wherein R.sub.1 and R.sub.2, which may be the same or different, each represent an alkyl group which may be substituted and at least one of R.sub.1 and R.sub.2 is an acetylaminoalkyl group or an N-alkylcarbamoylaminoalkyl group; and V.sub.1 and V.sub.2, which may be the same or different, each represent a hydrogen atom, an alkyl group, an alkoxy group or a trifluoromethyl group. ##STR2## wherein Z represents a non-metallic atomic group required for forming a heterocyclic ring; M represents a hydrogen atom, an --NH.sub.
    Type: Grant
    Filed: December 16, 1991
    Date of Patent: July 20, 1993
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Tsutomu Arai, Yuji Mihara, Masaki Okazaki
  • Patent number: 5227285
    Abstract: A silver halide photographic element is described, including a support having on one surface thereof(A) a subbing layer composed of(1) at least one non-hydrophilic polymer layer and(2) a hydrophilic colloid layer containing a dye dispersed therein in a solid state,wherein the hydrophilic colloid layer is coated on the non-hydrophilic polymer layer, and(B) at least one silver halide emulsion layer having a hydrophilic colloid as a binder,wherein the at least one silver halide emulsion layer is formed on the subbing layer, andhaving on the surface of the support opposite to the side having the silver halide emulsion layer(C) a light-insensitive hydrophilic colloid layer having a hydrophilic colloid as a binder,wherein the silver halide photographic material has a hydrophobic polymer layer which is positioned on the side of the support having the light-insensitive hydrophilic colloid layer and which is located further from the support than the light-insensitive hydrophilic colloid layer, andwherein the light-ins
    Type: Grant
    Filed: October 1, 1992
    Date of Patent: July 13, 1993
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Yasushi Hattori, Akira Hatakeyama
  • Patent number: 5223382
    Abstract: A silver halide photographic material containing a dye that can be quickly decolored during development processing and can provide the light-sensitive material with excellent sharpness and less residual color. The light-sensitive material is characterized by having a hydrophilic colloid layer containing a dye represented by formula (I): ##STR1## wherein Z represents a group of non-metallic atoms necessary to form a 5 or 6-membered nitrogen-containing heterocyclic ring; R.sub.1, R.sub.2, .sub.3, R.sub.4 and R.sub.5 each represent a hydrogen atom or a monovalent group, and R.sub.3 and R.sub.4 and/or R.sub.4 and R.sub.5 may be combined to form a 5 or 6-membered ring; R.sub.6 represents an alkyl group, an alkenyl group or an aryl group; L.sub.1, L.sub.2, L.sub.3 and L.sub.4 each represent a methine group; X.sup.- represents an anion; m represents 1 or 2; n represents 0 or 1; and p represents 0, 1/2 or 1, provided that when the dye forms an intermolecular salt, p is 0.
    Type: Grant
    Filed: December 1, 1992
    Date of Patent: June 29, 1993
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Shigeru Ohno
  • Patent number: 5212053
    Abstract: The invention is generally accomplished by forming a translucent display material comprising a substrate and sensitized layers wherein said substrate comprises a paper that has a light transmission rate of greater than 17 percent. It is preferred that the paper have a basis weight of less than 120 grams per square meter that is resin-coated on both sides. The paper of the invention when exposed and developed has a difference between maximum density and minimum density of greater than 2.5. The sensitized layers prior to imaging comprise at least one layer comprising cyan dye-forming coupler, at least one layer comprising magenta dye-forming coupler, and at least one layer comprising yellow dye-forming coupler. In preferred forms, the paper has a basis weight of between 70 and 100 grams per square meter for a balance of translucence and strength. The couplers preferably are present in the following amounts: cyan coupler greater than 0.6 grams per square meter, magenta coupler greater than 0.
    Type: Grant
    Filed: February 7, 1992
    Date of Patent: May 18, 1993
    Assignee: Eastman Kodak Company
    Inventors: Gary J. McSweeney, John F. Bacilek, John H. Goselin
  • Patent number: 5208137
    Abstract: A silver halide photographic light-sensitive material is disclosed. The photographic material contais fine solid particles of a compound represented by a formula ofA=L.sub.1 -L.sub.2 =L.sub.3).sub.m Bwherein A represents an acidic mother nucleus of 2-pyrazoline-5-one; B represents an aryl group which is substituted at 4th position thereof with an amino group having at least one of alkenyl, alkknyl or heterocyclic group or with a cyclic amino group; L.sub.1, L.sub.2 and L.sub.3 each represent a methine group; m is an integer of 0 or 1; wherein A contains a carboxyphenyl, sulfonaminodophenyl or aminosulfonylaminophenyl group. The compound is used in a filter layer in the photographic material.
    Type: Grant
    Filed: August 19, 1992
    Date of Patent: May 4, 1993
    Assignee: Konica Corporation
    Inventors: Yasushi Usagawa, Yasuhiko Kawashima, Nobuaki Kagawa
  • Patent number: 5206125
    Abstract: A silver halide color photographic material comprising a reflective support and coated thereon at least one each of a cyan dye-forming silver halide emulsion layer, a magenta dye-forming silver halide emulsion layer and a yellow dye-forming silver halide emulsion layer, each of the emulsion layers containing substantially silver iodide-free silver chloride or silver chlorobromide and respectively having spectral sensitivity peaks in different wavelength regions, at least one of the emulsion layers containing silver halide grains having an average grain size of 0.35 .mu.m to 0.65 .mu.m and a silver halide content of 0.19 g Ag/m.sup.2 or less, the total silver amount in all the silver halide emulsion layers being 0.78 g/m.sup.
    Type: Grant
    Filed: November 13, 1990
    Date of Patent: April 27, 1993
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Tadashi Ogawa
  • Patent number: 5188928
    Abstract: A novel silver halide photographic material is provided comprising at least one silver halide emulsion layer on a support, wherein the emulsion layer or other hydrophilic colloidal layers comprise at least one compound represented by formula (I): ##STR1## wherein W represents .dbd.N-- or ##STR2## in which R.sub.1 represents a hydrogen atom or a substituent; R.sub.0 represents an alkyl group containing 10 or more carbon atoms or an aromatic group containing 12 or more carbon atoms; Z represents an atomic group which can form a heterocyclic group or a carbon ring; Y represents ##STR3## wherein R.sub.2, R.sub.3, R.sub.4, R.sub.5, R.sub.6, and R.sub.7 each represents a hydrogen atom or a substituent; X.sub.1 represents a divalent group connected to carbon atom via a hetero atom contained therein; D represents a photogragraphic dye portion connected to X.sub.1 via a hetero atom contained therein; A represents a water-solubilizing group; m.sub.1 represents an integer 0 or 1; and n represents an integer 2 or more.
    Type: Grant
    Filed: October 30, 1991
    Date of Patent: February 23, 1993
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Yukio Karino, Tetunori Matushita
  • Patent number: 5158865
    Abstract: Novel photographic filter dyes are immobile as incorporated in a photographic element, but during processing, are uniformly converted to a form which is removable from the element. 2 The filter dye is represented by the structure:DYE--LS--BALwhere:BAL is a ballast group;DYE is a filter dye moiety;LS is a splittable linking group attached to a position in DYE that is not in conjugation with the dye chromophore.
    Type: Grant
    Filed: December 20, 1990
    Date of Patent: October 27, 1992
    Assignee: Eastman Kodak Company
    Inventors: John W. Harder, Peter R. Seoane, Michael P. Youngblood
  • Patent number: 5155015
    Abstract: A silver halide photographic material contains in a hydrophilic colloid layer a 4-arylazooxazoline-5-one compound or/and a 2-arylazo-3-butene-4-olide compound in the form of a dispersion of fine solid particles or a composition with an oil or/and a polymer latex. The compounds not only can selectively color a particular layer alone but also can be speedily decolorized and/or eluted in the course of development processing. In addition, they have no undesirable effects on photographic characteristics.
    Type: Grant
    Filed: March 27, 1992
    Date of Patent: October 13, 1992
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Yoshihiro Jimbo
  • Patent number: 5153114
    Abstract: Disclosed is a silver halide photographic lightsensitive material which comprises a support and at least one hydrophilic colloid layer including a silver halide emulsion layer, said hydrophilic colloid layer layer containing at least one dye represented by the following formula (I): ##STR1## (where R.sub.1 represents an alkyl group, R.sub.2 represents an alkyl group or an aryl group, Y represents a group of atoms necessary to form a saturated hydrocarbon ring or a saturated heterocyclic ring together with the carbon atom on the 3 position of pyrrole ring having Z, Z represents a group of atoms necessary to form a benzo condensed ring or a naphtho condensed ring, n represents 1 or 2, m represent 1 or 2 and m is 1 when the dye forms an inner salt, and X.crclbar. represents an anion, with a proviso that a molecule of the dye has at least one acid substituent.
    Type: Grant
    Filed: August 6, 1991
    Date of Patent: October 6, 1992
    Assignee: Mitsubishi Paper Mills, Ltd.
    Inventors: Satoshi Kaneko, Akira Tanaka
  • Patent number: 5151336
    Abstract: A masking material with a semiopaque layer containing a coloring agent, characterized in that the semiopaque layer permits the transmission of the light at a wavelength corresponding to the "green-lack" wavelength of color paper.
    Type: Grant
    Filed: September 10, 1990
    Date of Patent: September 29, 1992
    Assignee: Kimoto Co., Ltd.
    Inventor: Toshie Yokosuka
  • Patent number: 5143822
    Abstract: A silver halide photographic light-sensitive material is disclosed, which is improved in the sharpness of images and whitness of the background. The light-sensitive material comprises a reflective support having thereon a photographic layer including a silver halide emulsion layer and an antihalation layer provided between said support and said silver halide emulsion layer, wherein said antihalation layer contains fine dispersed particles of a compound represented by the following formula I, and at least one layer included in said photographic layer contains a fluorescent whitening agent;A.dbd.L.sub.1 --L.sub.2 .dbd.L.sub.3).sub.m B (I)wherein A is a 2-pyrazoline-5-on nucleus; B is an 4-aminoaryl group; L.sub.1, L.sub.2, L.sub.3 and L.sub.4 are each a methine group; and m is 0 or 1, and group represented by A or B should have a specified substituent.
    Type: Grant
    Filed: November 29, 1991
    Date of Patent: September 1, 1992
    Assignee: Konica Corporation
    Inventor: Shouji Nishio
  • Patent number: 5135842
    Abstract: A thermal-dye-bleach construction comprising a thermal nucleophile-generating agent in association with a polymethine dye having a nucleus of general formula (I): ##STR1## in which: n is 0, 1, 2 or 3;R.sup.1 and R.sup.4 are independently selected from the group consisting of hydrogen atoms, optionally substituted alkyl groups of up to 30 carbon atoms, optionally substituted alkenyl groups of up to 30 carbon atoms and optionally substituted aryl groups of up to 14 carbon atoms; andR.sup.1 and R.sup.2 together and/or R.sup.3 and R.sup.4 together may represent the necessary atoms to complete a 5 or 6-membered optionally substituted heterocyclic ring; orone or more of R.sup.1 to R.sup.4 may represent the necessary atoms to complete an optionally substituted 5 or 6-membered heterocyclic ring fused to the phenyl ring on which the NR.sup.1 R.sup.2 or NR.sup.3 R.sup.4 group is attached;R.sup.5 and R.sup.
    Type: Grant
    Filed: May 29, 1990
    Date of Patent: August 4, 1992
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Jonathan P. Kitchin, Mark P. Kirk, Dian E. Stevenson, Randall H. Helland
  • Patent number: 5124242
    Abstract: A silver halide photographic material comprising a support having on at least one side thereof an undercoat polymer layer, a dye layer comprising hydrophilic colloid and a dye capable of being decolorized during development, and at least one silver halide emulsion layer in that order from the side of the support, wherein hydrophilic colloid in the dye layer is present at a coating weight of not more than about 0.5 g/m.sup.2 and the dye layer is dried at a temperature in the range of from about 80.degree. to about 160.degree. C.
    Type: Grant
    Filed: January 16, 1991
    Date of Patent: June 23, 1992
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Yasushi Hattori, Koichi Suematsu, Shigeru Ohno
  • Patent number: 5110717
    Abstract: An object of the invention is to overcome disadvantages of prior practices. A further object of the invention is to provide a process for providing particles that result in improved UV absorption in photographic products.An additional object is to provide lower cost polymer particle dispersions.The invention is generally accomplished by mechanically grinding a crystalline material to a desired particle size in a liquid that is not a solvent for the material, heating said crystalline particles dispersed in said liquid to above their melting temperature, and cooling the melted particles in said liquid to form amorphous particles. In preferred forms of the invention, the material is a photographically useful material, such as ultraviolet light absorber or coupler.
    Type: Grant
    Filed: December 17, 1990
    Date of Patent: May 5, 1992
    Assignee: Eastman Kodak Company
    Inventors: David A. Czekai, John F. Bishop
  • Patent number: 5104777
    Abstract: A high-contrast room-light-handleable black-and-white photographic element is comprised of a support having on one side thereof a silver halide emulsion layer and having, on the same side of the support as the silver halide emulsion layer, both a filter dye layer in which the dye is immobile and a matte layer comprised of a matting agent dispersed in a hydrophilic colloid that serves as a binder. In this element, the filter dye layer serves to provide uniform filtering of incident light, while the matte layer provides a rough surface which facilitates rapid vacuum draw-down during contact exposure.
    Type: Grant
    Filed: May 1, 1990
    Date of Patent: April 14, 1992
    Assignee: Eastman Kodak Company
    Inventors: Ronald J. Schmidt, Richard J. Kapusniak, Louis I. Nagy
  • Patent number: 5098820
    Abstract: Solid particle dispersions of dyes according to the formula: ##STR1## are disclosed as filter dyes for photograhic elements. In this formula,m is 0 or 1.R.sub.1 and R.sub.2 are each independently substituted or unsubstituted alkyl or substituted or unsubstituted aryl, or together with R.sub.3 and R.sub.4 form a heterocyclic ring.R.sub.3 and R.sub.4 are each H or together with R.sub.1 and R.sub.2 form a heterocyclic ring.A is a ketomethylene residue.X represents a carboxyphenyl or sulfonamidophenyl, or a carboxy or sulfonamido substituent that is appended to an aryl ring that is part of A.
    Type: Grant
    Filed: May 7, 1990
    Date of Patent: March 24, 1992
    Assignee: Eastman Kodak Company
    Inventors: Michael J. McManus, Donald R. Diehl, Glenn M. Brown
  • Patent number: 5089585
    Abstract: A new class of transition metal bis(dithiolene) complex polymers having improved physical characteristics. These polymers are generally prepared by first preparing a bifunctionalized transition metal bis(dithiolene) complex, then reacting the bifunctionalized complex with one or more other bifunctional compounds. A wide variety of flexible linkage can be incorporated into the polymer chain via the bifunctional reactant to vary the physical properties of the resulting polymer. The polymers can be used as near infrared filters, both as supported and freestanding films.
    Type: Grant
    Filed: May 1, 1990
    Date of Patent: February 18, 1992
    Assignee: Board of Regents, The University of Texas System
    Inventors: John R. Reynolds, Fei Wang
  • Patent number: 5081008
    Abstract: In a silver halide color photographic light-sensitive material which includes at least one layer of each of red-, green-, and blue-sensitive silver halide emulsion layers and a yellow filter layer containing yellow colloidal silver on a support, an average grain size of at least one of the light-sensitive silver halide emulsions is 0.4 .mu.m or less, a maximum absorption peak of yellow colloidal silver in the yellow filter layer appears at 430 to 450 nm, and 1/4 absorption of the maximum absorption at the longer wavelength side occurs within the range of 500 to 560 nm. This photographic light-sensitive material can reduce a fog by the yellow filter layer without degrading other photographic properties.
    Type: Grant
    Filed: September 7, 1989
    Date of Patent: January 14, 1992
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Naoyasu Deguchi
  • Patent number: 5079139
    Abstract: A photosensitive photographic material is described comprising a support bearing a silver halide emulsion layer sensitized with a dye of the general formula: ##STR1## wherein Y is S or Se,L.sup.1, L.sup.2, L.sup.3, L.sup.4 and L.sup.5 are each independently substituted or unsubstituted methine groups,A is N--R.sup.3 or O,B is N--R.sup.4 when A is O, or N--R.sup.4, S, or O when A is N--R.sup.3,R.sup.1 and R.sup.2 are each a substituted or unsubstituted alkyl group,R.sup.3 and R.sup.4 are each a substituted or unsubstituted alkyl or a substituted or unsubstituted aryl group,R.sup.5 is an alkyl group of 1-4 carbon atoms,n is 0, 1 or 2, andX is counterion,and wherein at least two of R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are substituted with an acid or acid salt substituent.
    Type: Grant
    Filed: September 5, 1989
    Date of Patent: January 7, 1992
    Assignee: Eastman Kodak Company
    Inventors: Walter Bolger, John D. Mee, Kenneth G. Harbison, Hwei-Ling Yau
  • Patent number: 5079134
    Abstract: An X-ray photographic material which exhibits reduced crossover and exhibits no objectionable after-color (stain) upon rapid processing, comprising a transparent support having at least one photosensitive silver halide emulsion layer provided on each side of said support and having at least one layer containing a dye which absorbs light in the sensitive region of said sensitive silver halide photographic emulsion layer provided between said light-sensitive emulsion layer and the support, wherein crossover is less than 10%, said dye is adsorbed onto fine particles which fine particles provide surfaces onto which the dye can be adsorbed, said dye can be decolorized or washed out during development, and said dye is a compound selected from the group consisting of compounds represented by the formulae set forth in the specification.
    Type: Grant
    Filed: May 31, 1990
    Date of Patent: January 7, 1992
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Ichizo Toya
  • Patent number: 5077184
    Abstract: A silver halide photographic material comprising a support provided with an undercoat layer and having thereon at least one silver halide emulsion layer and at least one dye-containing hydrophilic colloid layer between the emulsion layer and the undercoat layer, wherein the dye contained in the dye-containing hydrophilic colloid layer absorbs light in the light-sensitive region of the silver halide emulsion layer and is decolorized during the course of development, the dye-containing hydrophilic colloid layer has a swelling ratio of not higher than 180%; the coating weight of the hydrophilic colloid of the dye-containing hydrophilic colloid layer is not more than 0.5 g/m.sup.2 ; the undercoat layer comprises a hydrophobic polymer, and at least on hydrophilic colloid layer is provided between the dye-containing hydrophilic colloid layer and the undercoat layer.
    Type: Grant
    Filed: January 16, 1991
    Date of Patent: December 31, 1991
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Yasushi Hattori, Koichi Suematsu, Shigeru Ohno
  • Patent number: 5077185
    Abstract: An element comprising a support having an antistatic layer applied to one side thereof and wherein said antistatic layer also contains antihalation dyes absorbing light at 440 nm and below and with matte particles therein, is described. A photosensitive layer, e.g., photographic silver halide layer can be coated on the opposite side of the support. The element exhibits excellent antistatic and antihalation properties as well as low dye stain and improved dimensional stability, compared to elements wherein the antihalation dyes are coated in a separate layer. These products are especially useful as so-called "bright-light films" that are designed for contact printing and the like.
    Type: Grant
    Filed: March 28, 1991
    Date of Patent: December 31, 1991
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Thomas B. Cho, Ray B. Myers