Natural Fiber Dyeing Patents (Class 8/916)
  • Patent number: 8349029
    Abstract: The present invention relates to azo dyes of the formula (1) in which R, M, and Y are defined as stated in claim 1, to dye mixtures comprising them, to processes for preparing them, and to their use.
    Type: Grant
    Filed: January 30, 2012
    Date of Patent: January 8, 2013
    Assignee: DyStar Colours Deutschland GmbH
    Inventors: Jörg Wörner, Andreas Schrell
  • Patent number: 8101731
    Abstract: The present invention relates to novel yellow anionic dyes, a process for their preparation, certain novel intermediates necessary for their preparation and the use of these dyes for dyeing natural or synthetic materials, in particular, paper. The dyes are of formula (14), (15) or (16) in which R1 represents hydrogen, C1-C4alkyl, C1-C4alkoxy or SO3H, R2 represents SO3H or CO2H, R3 represents hydrogen, C1-C4alkyl, halogen, hydroxy, C1-C4alkoxy, carboxy, NH2 or NHC1-C4alkyl, R3a represents hydrogen or NH2 and A1 and A2, independently of the other, is selected from the group consisting of an acetoacetylated amine, a derivative of barbituric acid, a 2,4,6-triaminopyrimidine derivative, a pyridone derivative, an aminopyrazole or a pyrazolone derivative and a benzoic acid derivative, or A1 and A2, each one independently of the other, represent a certain phenol residue.
    Type: Grant
    Filed: March 29, 2010
    Date of Patent: January 24, 2012
    Inventors: Michael Lennartz, Adolf Käser, Sandra Weiss
  • Patent number: 8038736
    Abstract: The present invention provides dye mixtures containing a dye of the formula (I) and a dye of the formulae (II) where Z is —CH?CH2 or —CH2CH2Z1 and Z1 is hydroxyl or an alkali-eliminable group; and M is hydrogen, an alkali metal or one equivalent of an alkaline earth metal. The invention also relates to a process for their preparation and their use.
    Type: Grant
    Filed: March 3, 2010
    Date of Patent: October 18, 2011
    Assignee: DyStar L.P.
    Inventors: Ronald Pedemonte, Antonio Torrentera, Tiffany Chambers
  • Patent number: 7799097
    Abstract: Processes for dyeing fabric are provided. The process can include continuously moving the fabric in a machine direction; removing folds or creases from the fabric; spraying a first surface of the fabric with a dye; and exposing the fabric to atmospheric steam after spraying the dye on the first surface but prior to the dye drying on the first surface so that the dye migrates from the first surface to a second surface of the fabric and reacts with and affixes to a component of the fabric.
    Type: Grant
    Filed: March 31, 2006
    Date of Patent: September 21, 2010
    Assignee: HBI Branded Apparel Enterprises, LLC
    Inventors: Michael Abbott, Robert Miller, Ruth May, Martin Bentham
  • Patent number: 7785376
    Abstract: A method to bind compounds (e.g., antibiotics) to natural or synthetic yarn or fabric, involving reacting the compounds with cyanuric chloride, a hydroxide base (e.g., NaOH), and deionized water to form reactive compounds; forming a dyebath composed of the reactive compounds, at least one nonioinic, cationic or anionic surfactant, salt (e.g., sodium sulfate), deionized water, and natural or synthetic yarn or fabric; heating the dyebath (generally for about 1 to about 100 minutes at a temperature of about 25° to about 100° C.); adding a hydroxide base (e.g., NaOH) to the dyebath and heating (generally for about 1 to about 100 at a temperature of about 80° to about 100° C.); rinsing the natural or synthetic yarn or fabric; placing the natural or synthetic yarn or fabric in deionized water and heating (generally for about 1 to about 100 minutes at a temperature of about 25° to about 100° C.); rinsing the natural or synthetic yarn or fabric; and drying the natural or synthetic yarn or fabric.
    Type: Grant
    Filed: November 19, 2008
    Date of Patent: August 31, 2010
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventors: David T. Chun, Gary R. Gamble
  • Patent number: 7723494
    Abstract: The present invention relates to novel yellow anionic dyes, a process for their preparation, certain novel intermediates necessary for their preparation and the use of these dyes for dyeing natural or synthetic materials, in particular, paper.
    Type: Grant
    Filed: January 4, 2008
    Date of Patent: May 25, 2010
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Michael Lennartz, Adolf Käser, Sandra Weiss
  • Patent number: 7686852
    Abstract: Compounds of the general formula (I) a process for their preparation and their use for dyeing and/or printing organic substrates.
    Type: Grant
    Filed: May 12, 2005
    Date of Patent: March 30, 2010
    Assignee: Clariant Finance (BVI) Limited
    Inventors: Georg Schoefberger, Urs Daettwyler
  • Patent number: 6933371
    Abstract: Disclosed are bisazo compounds of the formula Ia or Ib where R1 is hydrogen or methyl, the X groups are independently —CH2CH2— or —CH2CH2CH2—, R2, R3, and R4 are independently hydrogen or methyl, A is an anion and n corresponds to the valency of A. Also disclosed are the use of the bisazo compounds for dyeing, especially paper, and colorants containing said bisazo compounds.
    Type: Grant
    Filed: September 13, 2001
    Date of Patent: August 23, 2005
    Assignee: BASF Aktiengesellschaft
    Inventors: Gunter-Rudolf Schröder, Sophia Ebert, Karl-Heinz Etzbach, Rainer Tresch, Rüdiger Sens
  • Patent number: 6805718
    Abstract: The present invention relates to methods of dyeing a material which involve contacting the material with a dyeing system which comprises: (a) a mixture of (i) an aromatic diamine and (ii) one or more of a naphthol and an aminonaphthalene and (b) an oxidation system comprising (i) a hydrogen peroxide source and an enzyme exhibiting peroxidase activity or (ii) an enzyme exibiting oxidase activity on one or more of the compounds of mixture (a). The material may be a fabric, yarn, fiber, garment or film made of fur, hide, leather, silk or wool, or made of cationic polysaccharide, cotton, diacetate, flax, linen, lyocel, polyacrylic, synthetic polyamide, polyester, ramie, rayon, triacetate, or viscose.
    Type: Grant
    Filed: February 27, 2003
    Date of Patent: October 19, 2004
    Assignee: Novozymes A/S
    Inventors: Martin Barfoed, Ole Kirk, Sonja Salmon
  • Patent number: 6685749
    Abstract: Fabrics, formed, for example, by joining stitch and loop yarns to form a fabric prebody, with the loop yarn forming in loops that overlay the stitch yarn at the technical face and back of the fabric prebody, and thereafter finishing the fabric prebody to form raised fleece at both surfaces, have a first surface and an opposite, second surface of contrasting, i.e., different, colors. Regions of one or both surfaces may be treated to resist raising so that design elements of the raised or fleece regions stand out in relief, forming surface(s) with contour. Methods of forming the fabrics are also described.
    Type: Grant
    Filed: July 20, 2000
    Date of Patent: February 3, 2004
    Assignee: Malden Mills Industries, Inc.
    Inventors: Moshe Rock, Amnon Gabay, Charles Haryslak, William K. Lie
  • Patent number: 6676710
    Abstract: A process for treating a textile substrate, the process including the steps of providing a textile substrate; providing a treatment bath; entraining a transport material in the treatment bath wherein the transport material further comprises a treatment material dissolved or suspended therein and wherein the transport material is substantially immiscible with the treatment bath; and contacting the textile substrate with the transport material in the treatment bath to thereby treat the textile substrate with the treatment material in the transport material.
    Type: Grant
    Filed: December 4, 2000
    Date of Patent: January 13, 2004
    Assignee: North Carolina State University
    Inventors: Carl Brent Smith, Walter A. Hendrix, Donald L. Butcher
  • Patent number: 6521000
    Abstract: A woven fabric formed of dyed blended cotton/polyester warp yarns and polyester stretch fill yarns is finished by passing the fabric through a brusher and singer and then through a finishing pad box to apply the finish. Immediately after application of the finish to the yarns, the fabric is passed over pre-drying cans and set by attaching the fabric to an unheated tenter chain for width control. The fabric is then passed over steam drying cans to reduce the moisture level to 8-10%. Subsequently, the fabric is passed through a first compressive shrinking machine, a scrubbing operation and then through a final compressive shrinking machine.
    Type: Grant
    Filed: March 30, 2000
    Date of Patent: February 18, 2003
    Assignee: Burlington Industries, Inc.
    Inventors: James E. McFarland, George R. Burkert, Robert C. Smith
  • Patent number: 6296672
    Abstract: The present invention relates to methods of dyeing a material which involve contacting the material with a dyeing system which comprises: (a) a mixture of (i) an aromatic diamine and (ii) one or more of a naphthol and an aminonaphthalene and (b) an oxidation system comprising (i) a hydrogen peroxide source and an enzyme exhibiting peroxidase activity or (ii) an enzyme exibiting oxidase activity on one or more of the compounds of mixture (a). The material may be a fabric, yarn, fiber, garment or film made of fur, hide, leather, silk or wool, or made of cationic polysaccharide, cotton, diacetate, flax, linen, lyocel, polyacrylic, synthetic polyamide, polyester, ramie, rayon, triacetate, or viscose.
    Type: Grant
    Filed: December 14, 1999
    Date of Patent: October 2, 2001
    Assignees: Novozymes A/S Patents, Novozymes North America
    Inventors: Martin Barfoed, Ole Kirk, Sonja Salmon
  • Patent number: 6203578
    Abstract: The use of linear or cyclic silicon compounds containing at least one chromophoric group of quinone or azo type as direct dyes in dye compositions intended for dyeing human keratin fibres and in particular the hair. The invention also relates to novel silicon compounds and dye compositions containing them, as well as to the corresponding direct dyeing process.
    Type: Grant
    Filed: September 29, 1999
    Date of Patent: March 20, 2001
    Assignee: L'Oreal
    Inventors: Madeleine Leduc, Hervé Richard, Alain Lagrange
  • Patent number: 6176885
    Abstract: The use of linear or cyclic silicon compounds containing at least one chromophoric group of quinone or azo type as direct dyes in dye compositions intended for dyeing human keratin fibers and in particular the hair. The invention also relates to novel silicon compounds and dye compositions containing them, as well as to the corresponding direct dyeing process.
    Type: Grant
    Filed: September 29, 1999
    Date of Patent: January 23, 2001
    Assignee: L'Oreal
    Inventors: Madeleine Leduc, Herv{acute over (e)} Richard, Alain Lagrange
  • Patent number: 6077320
    Abstract: Diiminoisoindoline derivatives or 3-aminoisoindolone derivatives, or tautomeric forms thereof, used as oxidizing-agent-free dye precursors in dyeing keratin fibers, in particular human keratin fibers such as the hair, without an oxidizing agent, in the presence of compounds containing a primary or secondary amine function; dye compositions containing these compounds and to the dyeing devices and processes used.
    Type: Grant
    Filed: December 11, 1997
    Date of Patent: June 20, 2000
    Assignee: L'Oreal
    Inventors: Herve Andrean, Alain Lagrange
  • Patent number: 6036729
    Abstract: The present invention relates to methods of dyeing a material, comprising (a) soaking the material in an aqueous solution which comprises one or more mono-, di- or polycyclic aromatic or heteroaromatic compounds; and (b) treating the soaked material in an aqueous solution with (i) a hydrogen peroxide source and an enzyme exhibiting peroxidase activity or (ii) an enzyme exibiting oxidase activity on the one or more aromatic or heteroaromatic compounds; wherein the material is a fabric, yarn, fiber, garment or film made of fur, hide, leather, silk or wool.
    Type: Grant
    Filed: December 19, 1996
    Date of Patent: March 14, 2000
    Assignees: Novo Nordisk A/S, Novo Nordisk Biochem North America, Inc.
    Inventors: Martin Barfoed, Ole Kirk
  • Patent number: 6027537
    Abstract: The use of linear or cyclic silicon compounds containing at least one chromophoric group of quinone or azo type as direct dyes in dye compositions intended for dyeing human keratin fibres and in particular the hair. The invention also relates to novel silicon compounds and dye compositions containing them, as well as to the corresponding direct dyeing process.
    Type: Grant
    Filed: October 30, 1997
    Date of Patent: February 22, 2000
    Assignee: L'Oreal
    Inventors: Madeleine Leduc, Herve Richard, Alain Lagrange
  • Patent number: 5972042
    Abstract: Methods of dyeing a material, comprising treating the material with a dyeing system which comprises (a) one or more mono-, di- or polycyclic aromatic or heteroaromatic compounds, and (b) (i) a hydrogen peroxide source and an enzyme exhibiting peroxidase activity or (ii) an enzyme exhibiting oxidase activity on the one or more aromatic or heteroaromatic compounds; wherein the material is a fabric, yarn, fiber, garment or film made of cotton, diacetate, flax, linen, lyocel, polyacrylic, synthetic polyamide, polyester, ramie, rayon, tencel, or triacetate.
    Type: Grant
    Filed: December 19, 1996
    Date of Patent: October 26, 1999
    Assignees: Novo Nordisk A/S, Novo Nordisk Bio-Chem North America
    Inventors: Martin Barfoed, Ole Kirk
  • Patent number: 5922085
    Abstract: A process of preparing a dye composition and a resultant dye composition. The process includes preparing a mixture comprising a triphenylmethane dye and oxidation products by reacting methylenedianiline, aniline, an oxidation catalyst, and an oxidant; separating the oxidation products from the triphenylmethane dye to produce an aqueous solution of oxidation products; treating the solution of oxidation products with a basic compound; separating unreacted aniline from the solution of oxidation products and forming a mixture of oxidation products; and sulfonating the mixture of oxidation products to form a dye composition.
    Type: Grant
    Filed: September 30, 1997
    Date of Patent: July 13, 1999
    Assignee: BASF Corporation
    Inventors: Gray D. Ellis, Belinda J. DiMarcello, Debra J. Bradshaw
  • Patent number: 5676707
    Abstract: Provided is a leather treatment process for leather coloring, carried out on a leather to be colored with a liquid ink, the process comprises the steps of, imparting to the coloring surface of the leather a resin soluble in the liquid ink and imparting to the coloring surface an aggregate of particles with a functional group having an affinity for the liquid ink.
    Type: Grant
    Filed: September 11, 1996
    Date of Patent: October 14, 1997
    Assignee: Canon Kabushiki Kaisha
    Inventors: Nobuyuki Kuwabara, Miyuki Fujita
  • Patent number: 5496707
    Abstract: The present invention provides an assay method for hemicellulases comprising a) directly dyeing, using a reactive dye, an insoluble natural product, or a modified form of a natural fibre material; and b) adding the enzyme to the dyed product produced in step a) and, after a specific incubation period, separating the liquid component from the insoluble dyed product, e.g. by a simple filtration, and determining the amount of dyestuff liberated in the the separated solution by spectrophotometric means. A combined mixing and dispensing device for use in the method of the present invention is also provided.
    Type: Grant
    Filed: April 5, 1994
    Date of Patent: March 5, 1996
    Assignees: Ciba-Geigy Corporation, Genencor International, Inc.
    Inventors: Beat Freiermuth, Dieter Werthemann, Alfred Gaertner, Spencer Fisk
  • Patent number: 5493036
    Abstract: The invention relates to fibre-reactive anthraquinone dyes of formula ##STR1## wherein R.sub.1, R.sub.2, B, U, R and n are as defined in claim 1. The anthraquinone dyes of formula (1) are suitable for dyeing or printing hydroxyl group containing or nitrogen-containing fibre materials and give dyeings or prints of good allround fastness properties.
    Type: Grant
    Filed: September 19, 1994
    Date of Patent: February 20, 1996
    Assignee: Ciba-Geigy Corporation
    Inventor: Jean-Marie Adam
  • Patent number: 5356439
    Abstract: By intermixing a gelling agent, water, a mercaptan-based reducing agent, and a certified dye designated as an F,D&C dye and/or a D&C dye, a highly effective, easily employed permanent dye/gel composition is obtained which imparts a desired color into both natural and synthetic fibers. In the preferred embodiment, the mercaptan-based reducing agent is added to the composition immediately prior to applying the permanent dye/gel composition to the fibers. By merely rubbing, or embrocating the permanent dye/gel composition into the natural or synthetic fibers, the desired color is permanently embedded into the fibers in a long-lasting durable manner. In view of the constituents employed in this permanent dye/gel composition, use as a permanent hair dye is highly effective.
    Type: Grant
    Filed: September 14, 1992
    Date of Patent: October 18, 1994
    Assignee: Shiseido Co., Ltd.
    Inventors: Thomas M. Schultz, Stephanie Wong
  • Patent number: 5298032
    Abstract: Cellulosic textile materials can be dyed with disperse dyes from supercritical CO.sub.2 by treating the textile materials with an auxiliary that promotes dye uptake, typically polyethylene glycol.
    Type: Grant
    Filed: September 8, 1992
    Date of Patent: March 29, 1994
    Assignee: Ciba-Geigy Corporation
    Inventors: Wolfgang Schlenker, Peter Liechti, Dieter Werthemann, Angelo D. Casa
  • Patent number: 5152801
    Abstract: There is disclosed a process for dyeing leather by the exhaust process, which comprises treating leather with an aqueous liquor which contains a formulation comprising a black anionic dye and a sulfonated carbon black. The leather dyeings obtained by this process have good allround fastness properties.
    Type: Grant
    Filed: December 5, 1990
    Date of Patent: October 6, 1992
    Assignee: Ciba-Geigy Corporation
    Inventors: Hans Altermatt, Alois Puntener, Peter Moser, Ernst Tempel
  • Patent number: 5126450
    Abstract: Unsymmetrical triphendioxazine (TPD) reactive dyes of Formula (1) for the colouration of e.g. wool, silk, leather and cotton are claimed as well as intermediates for their manufacture. ##STR1## wherein W.sup.1 and W.sup.2 are different and each independently of the formula: ##STR2## R.sup.1 and R.sup.2 in each group defined by W.sup.1 or W.sup.2 independently represent H or an optionally substituted hydrocarbon radical or are joined together to form, with B and the two N atoms, a piperazine ring;each x independently has a value of 0 or 1;each B independently represents an optionally substituted divalent hydrocarbon radical;each Z independently represents a fibre-reactive group;T.sup.1 and T.sup.2 each independently represents H, Cl, Br, F, SO.sub.3 H or an optionally substituted alkyl or aryl radical;A.sup.1 and A.sup.2 each independently represents an alkyl, alkoxy, Cl, Br, COOH, SO.sub.
    Type: Grant
    Filed: November 1, 1990
    Date of Patent: June 30, 1992
    Assignee: Imperial Chemical Industries Plc
    Inventor: Peter Smith
  • Patent number: 5007941
    Abstract: There is disclosed a process for dyeing leather by the exhaust process, which comprises treating leather with an aqueous liquor which contains a formulation comprising an anionic dye and a pigment. The leather dyeings obtained by this process have good allround fastness properties.
    Type: Grant
    Filed: December 21, 1989
    Date of Patent: April 16, 1991
    Assignee: Ciba-Geigy Corporation
    Inventors: Bruno Martinelli, Markus Ghezzi, Gunter Streicher
  • Patent number: 4892556
    Abstract: In a process for printing on leather substrates using the transfer printing method by surface treatment of the substrate, applying an auxiliary carrier which is printed on with sublimable dyes and transferring the dyes to the substrate by dry heat treatment, the surface of the substrate is impregnated with an aqueous solution of a pre-condensate of a urea aldehyde resin or melamine aldehyde resin, the solvent is removed at a temperature which still does not cause condensation of the pre-condensate, and the dyes are transferred at a temperature of between 140.degree. and 250.degree. C. for a sufficiently long time for the pre-condensate to condense out at the same time.
    Type: Grant
    Filed: December 12, 1986
    Date of Patent: January 9, 1990
    Inventors: Herbert W. A. Schulzen, deceased, Elisabeth A. Schulzen, heir, Holger Schulzen, heir, Petra S. Schulzen, heir
  • Patent number: 4750910
    Abstract: Blue-colored bioabsorbable surgical fibers are obtained by adding and dispersing a bioabsorbable polymer, which is selected from polyglycolic acid, poly(l-lactic acid) and glycolic acid-l-lactic acid copolymers all of which are useful as surgical fibers, and indigo in a non-aqueous organic solvent having low solubility for the polymer and indigo, heating the resultant dispersion at a temperature below 120.degree. C. to distill off the solvent, thereby to obtain a master batch with the indigo incorporated therein at a high concentration, mixing and kneading the master batch with a fresh supply of the polymer, and then spinning the resultant polymer mixture.
    Type: Grant
    Filed: January 20, 1987
    Date of Patent: June 14, 1988
    Assignee: Mitsui Toatsu Chemicals, Incorporated
    Inventors: Hiroshi Takayanagi, Tadashi Kobayashi, Eiji Senoue, Masao Imai