Wool Or Silk Patents (Class 8/917)
  • Patent number: 8979947
    Abstract: The present invention relates to dyes of the formula (I) in which R1 to R10, D1 and D2 are defined as given in claim 1, a process for preparing them, and their use for dyeing and printing hydroxyl- and/or carboxamido-containing materials.
    Type: Grant
    Filed: November 24, 2011
    Date of Patent: March 17, 2015
    Assignee: DyStar Colours Distribution GmbH
    Inventors: Roxana Barbieru, Vajiravelu Sivamurugan
  • Patent number: 8911509
    Abstract: Reactive dye mixtures comprising at least one red dyeing dye and at least one blue, yellow, orange or brown dyeing dye and their use in methods for the dichromatic or trichromatic dyeing or printing of cellulosic fiber materials are described. The reactive dye mixtures yield dyeings or prints having good reproducibility and good all-round fastness properties.
    Type: Grant
    Filed: January 13, 2011
    Date of Patent: December 16, 2014
    Assignee: Huntsman International LLC
    Inventors: Athanassios Tzikas, Georg Roentgen, Marco Casartelli, Remo Codemo, Jean-Francois Landre
  • Patent number: 8556995
    Abstract: A composition comprising (a) a betaine of formula wherein R1 is a monovalent radical of an aliphatic C4-C30-hydrocarbon, R2 and R3 independently of one another represent C1-C12alkyl and X and Y independently of one another denote a bivalent radical of an aliphatic C1-C12-hydrocarbon, (b) a quaternary ammonium salt of formula (2) wherein R4 is a monovalent radical of an aliphatic C4-C30-hydrocarbon, R5, R6 and R7 independently of one another represent C1-C12alkyl, C5-C24aryl or C6-C30aralkyl, A? is halogenide, nitrate, hydrogensulfate or sulfonate, and (c) an alkoxylated fatty alcohol, is suitable as shade enhancer for the EL portion in PA/EL blends in the dyeing process using dark shade dyes.
    Type: Grant
    Filed: September 6, 2010
    Date of Patent: October 15, 2013
    Assignee: Huntsman International LLC
    Inventors: Hans Peter Haerri, Franz Gruener, Edvard Ham, Huiya Yuan, Xiaolong Lu
  • Patent number: 8187342
    Abstract: A process for indigo dyeing of wool and wool blends comprising the steps of subjecting the wool and wool blends to a step of pretreatment by impregnation with a shrink resistance agent, subjecting the pretreated wool and wool blend yarns to the step of indigo dyeing and post dyeing, wherein the step of dyeing and post dyeing includes a single step or a plurality of steps of impregnation of the pretreated wool and wool blends in an indigo dye bath followed each time by the step of oxidation.
    Type: Grant
    Filed: September 18, 2003
    Date of Patent: May 29, 2012
    Assignee: Malwa Industries Limited
    Inventors: Jangi Lal Oswal, Rishi Oswal
  • Patent number: 8167958
    Abstract: The present invention relates to a process for dyeing sheetlike textile materials with a dye, which comprises a concentrated dye system being applied in a total amount of 1% to 25% by weight, based on the textile material, to the textile material in two or more sub-steps and the dye being fixed on the textile material after each and every sub-step.
    Type: Grant
    Filed: August 14, 2009
    Date of Patent: May 1, 2012
    Assignee: DyStar Colours Deutschland GmbH
    Inventors: Christian Meyer, Wolfgang Schrott, Franz Sütsch
  • Patent number: 8137416
    Abstract: Compounds of the general formula (I) a process for their preparation and their use for dyeing and/or printing organic substrates are described.
    Type: Grant
    Filed: April 2, 2007
    Date of Patent: March 20, 2012
    Assignee: Clariant Finance (BVI) Limited
    Inventor: Rainer Nusser
  • 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: 7927384
    Abstract: Compounds of the general formula (I) a process for their preparation and their use for dyeing and/or printing organic substrates are described.
    Type: Grant
    Filed: June 21, 2007
    Date of Patent: April 19, 2011
    Assignee: Clariant Finance (BVI) Limited
    Inventor: Rainer Nusser
  • Patent number: 7381806
    Abstract: The objects of the present invention are novel cationic azo azine dyes of the generic formula (I), as well as colorants for keratin fibers that contain these compounds.
    Type: Grant
    Filed: September 7, 2006
    Date of Patent: June 3, 2008
    Assignee: The Procter & Gamble Company
    Inventors: Markus Speckbacher, Hans-Jürgen Braun
  • Patent number: 7259259
    Abstract: Reactive dyes of formula (1): wherein R1, is optionally substituted C1-C4 alkyl, R2 is halogen, C1-C4 alkyl, C1-C4 alkoxy or sulfo, Z1 is a radical of formula —SO2—Y (2a), —CO—NH—(CH2)K—SO2—Y (2b), —NH—CO—CH(Hal)—CH2—Hal (2c) —NH—CO—C(Hal)?CH2 or (2d) wherein Hal is chlorine or bromine, Y is vinyl or a radical —CH2CH2—U and U is a group removable under alkaline conditions, k is the number 2, 3, 4, 5 or 6, n is the number 0, 1 or 2 and m is the number 0 or 1, are suitable for dyeing or printing cellulose-containing fibre materials, preferably natural or synthetic polyamide fibre materials, and produce, with a high colour yield, dyeings and prints having good fastness properties
    Type: Grant
    Filed: November 24, 2003
    Date of Patent: August 21, 2007
    Assignee: Huntsman International LLC
    Inventors: Jürgen Schmiedl, Damien Schoehn, Klaus Koch
  • Patent number: 7244278
    Abstract: The object of the present invention is a ready-to-use agent for coloring keratin fibers containing (i) at least one heterocyclic hydrazone derivative of formula (I), (ii) at least one aromatic enamine of formula (IIa) or an acid addition compound thereof (IIb) and (iii) at least one oxidant, a multicomponent kit and a method for coloring keratin fibers by use of said agent
    Type: Grant
    Filed: November 11, 2004
    Date of Patent: July 17, 2007
    Assignee: Wella AG
    Inventors: Cecile Pasquier, Veronique Buclin, Caroline Kiener, Nadja Duc-Reichlin, Hans-Juergen Braun
  • Patent number: 7056348
    Abstract: A method for the synthesis of 5-aryl-1,3,3,-trimethyl-2-methylene-indoline derivatives of Formula (I) or its salts of Formula (Ia) wherein 1 mole of a 5-aryl-2,3,3-trimethyl-3H-indole derivative of Formula (VII) is reacted for 1 to 44 hours at a temperature of 20° to 180° C. in an apolar, aprotic or polar, protic or polar aprotic solvent with 1 to 50 moles of a compound of Formula R1-A; new compounds of Formulas (I)/(Ia) and (V), obtainable by this method as well as an agent containing at least one compound of Formula (I)/(Ia) and a carbonyl/imine compound for dyeing keratinic fibers and a method for temporarily dyeing keratin fibers, for which the keratin fiber is dyed with the aforementioned agent and the dyeing, so obtained, is removed again at any later time by a sulfite preparation.
    Type: Grant
    Filed: January 24, 2002
    Date of Patent: June 6, 2006
    Assignee: Wella AG
    Inventors: Guido Sauter, Hans-Juergen Braun, Nadia Reichlin
  • Patent number: 6989038
    Abstract: The invention relates to novel mixtures of sulfuric esters and specific sulfuric esters that are useful as leveling agents for the dyeing of nitrogenous fiber materials and to a process for their preparation by reacting sulfuryl chloride with specific alcohols.
    Type: Grant
    Filed: May 25, 2001
    Date of Patent: January 24, 2006
    Assignee: Bayer Aktiengesellschaft
    Inventor: Uwe Vogt
  • Patent number: 6896705
    Abstract: The invention relates to novel mixtures of sulfuric esters and specific sulfuric esters that are useful as leveling agents for the dyeing of nitrogenous fiber materials and to a process for their preparation by reacting sulfuryl chloride with specific alcohols.
    Type: Grant
    Filed: July 29, 2004
    Date of Patent: May 24, 2005
    Assignee: Bayer Aktiengesellschaft
    Inventor: Uwe Vogt
  • Patent number: 6869453
    Abstract: A reactive dye compound comprising: (a) at least one chromophore moiety; (b) at least one nitrogen-containing heterocycle; (c) a linking group to link each chromophore moiety to each nitrogen-containing heterocycle; characterised in that at least one nitrogen-containing heterocycle is substituted with at least one Y group wherein Y is a phosphonate or a borate derivative. The compounds herein have high Exhaustion Values (E), high Fixation Values (F) and high Efficiency Values (T) and show significant improvements in terms of reducing spent dyestuff in effluent, increasing dye affinity to the substrate, increasing the dye-substrate covalent bonding, increasing the ability to dye substrates at room temperature, decreasing the amount of dye that is removed during the post dyeing “soaping off process” and therefore simplifying the post dyeing “soaping off process” traditionally associated with dyeing cotton with fibre reactive dyes and reduction of staining of adjacent white fabrics.
    Type: Grant
    Filed: September 29, 2000
    Date of Patent: March 22, 2005
    Assignee: North Carolina State University
    Inventors: David Malcolm Lewis, Dong Wei He, Taher Iqbal Yousaf, Gilles Yves Marie Fernand Genain
  • Patent number: 6736864
    Abstract: A reactive dye compound comprising: (a) at least one chromophore moiety; (b) at least one SO2C2H4 group which is attached to the chromphore moiety either directly via the sulphur atom of the SO2C2H4 group or via a linking group L; characterized in that at least one SO2C2H4 group is substituted on its terminal carbon atom with at least one Y group wherein Y is a phosphonate or borate derivative.
    Type: Grant
    Filed: March 27, 2002
    Date of Patent: May 18, 2004
    Assignee: North Carolina State University
    Inventors: David Malcolm Lewis, Dong Wei He, Taher Iqbal Yousaf, Gilles Yves Marie Fernand Genain
  • Patent number: 6652601
    Abstract: The object of the present invention is an agent for dyeing fibers obtained by mixing two components and characterized in that one component (component A2) contains at least one carbonyl compound and the other component (component A1) contains at least one indoline derivative of formula (I) or a 3H-indoline derivative of formula (Ia) as well as a multicomponent kit for dyeing and later decolorizing fibers, said kit containing both an agent according to the invention for producing a coloration on the fiber and an agent for the reductive removal of said coloration.
    Type: Grant
    Filed: October 17, 2001
    Date of Patent: November 25, 2003
    Assignee: Wella Aktiengesellschaft
    Inventors: Guido Sauter, Hans-Juergen Braun, Nadia Reichlin
  • Patent number: 6620211
    Abstract: In a method for dyeing textile material with one or more fiber-reactive disperse dyestuffs in a supercritical or almost critical fluid, such as CO2, which textile material is selected from the group consisting of silk, wool and cellulose, combinations thereof and combinations of one or more thereof with synthetic fibers, such as polyester and/or polyamide, the relative humidity of the fluid is in the range from 10-100% during dyeing. Textile materials which have been dyed with the aid of this method have properties which are at least equal to those of textile materials of the same type which have been dyed in the traditional manner using water-soluble dyestuffs. A device for carrying out the dyeing method is also disclosed.
    Type: Grant
    Filed: February 9, 2001
    Date of Patent: September 16, 2003
    Assignee: Stork Prints B.V.
    Inventors: Wilhelmus J. T. Veugelers, Geert Feye Woerlee, Hendrik Gooijer, Jan Willem Gerritsen
  • Patent number: 6562115
    Abstract: Monoazo dyes of formulas (III) wherein R1, R2, R3, D1 and M are as defined in the specification, are excellent dyes for dyeing and printing of cellulose containing materials and especially for the preparation of inks for ink jet printing.
    Type: Grant
    Filed: May 29, 2001
    Date of Patent: May 13, 2003
    Assignee: Ilford Imaging Switzerland GmbH
    Inventors: Kurt Baettig, Gérald Jan
  • Publication number: 20020083532
    Abstract: Anionic coloring agents comprising at least one spacer arm bounded to their chemical structure. These anionic coloring agents have the following general formula: CA-BE, wherein, CA is an anionic coloring agent comprising at least a cromophore group; and BE is the spacer arm, which has the following chemical structure: —(X—R—Z)r, wherein X is a direct link or a group having the formula —S(O)s, wherein s is 0, 1 or 2; or —NR1—, wherein, R1 is hydrogen or a C1-C10 alkyl group; R is a C1-C10 straight or branched alkylene group: Z is a polar group; and r is an integer equal or higher than 1.
    Type: Application
    Filed: December 18, 2001
    Publication date: July 4, 2002
    Inventor: Jorge Mazza
  • Patent number: 6413281
    Abstract: 2-(p-sulphophenyl) amino-1,3 5-triazine derivatives [1] and their alkali salts, wherein R1, represents Cl, F; R2 is &agr;- or &bgr;-naphthylamino, or &agr;- or &bgr;-naphthoxy, and the method for preparing the compound are provided. The compound can be used as a cationic dye auxiliary agent in dyeing animal protein fibers (such as wool, cony hair, camel hair and natural silk) and their textile fabric as well as blended yarn or fabric containing the animal protein fiber.
    Type: Grant
    Filed: February 17, 2000
    Date of Patent: July 2, 2002
    Inventor: Zhi Wang
  • Patent number: 6350862
    Abstract: Reactive Dye compound having formula (I) wherein: D is a chromophore group; L is a linking moiety; Q is a quaternized nitrogen derivative; X and Y are independently selected from chlorine, bromine, fluorine or hydrogen; A is selected from halogen, preferably chlorine or fluorine; provided that at least one of X and Y is fluorine; A is selected from halogen, preferably chlorine or fluorine; and salts and esters thereof.
    Type: Grant
    Filed: October 2, 2000
    Date of Patent: February 26, 2002
    Assignee: The Procter & Gamble Company
    Inventors: Earl David Brock, David Malcolm Lewis, Taher Iqbal Yousaf
  • Publication number: 20020017218
    Abstract: 1
    Type: Application
    Filed: May 29, 2001
    Publication date: February 14, 2002
    Applicant: ILFORD IMAGING SWITZERLAND GmbH
    Inventors: Kurt Baettig, Gerald Jan
  • Patent number: 6320031
    Abstract: Monoazo dyes of formula (3) wherein A, R1, R2, M and n are as defined in the specification, are excellent dyes for dyeing and printing of cellulose containing materials and especially for the preparation of inks for ink jet printing.
    Type: Grant
    Filed: February 23, 2000
    Date of Patent: November 20, 2001
    Assignee: Ilford Imaging Switzerland GmbH
    Inventors: Kurt Baettig, Gérald Jan
  • Patent number: 6319290
    Abstract: Compounds of the general formula (I) wherein R1 represents hydrogen or a C1-C4-alkyl group, X represents the radical of aliphatic, cyclic or aromatic diamines and Y represents hydrogen or an alkali metal, and a process for their preparation and their use for dyeing organic substrates, and organic substrates dyed with these compounds.
    Type: Grant
    Filed: December 9, 1999
    Date of Patent: November 20, 2001
    Assignee: Clariant Finance (BVI) Limited
    Inventors: Detlef Kalweit, Martin Oberholzer
  • Patent number: 6319289
    Abstract: Compounds of formula (I) wherein A is hydrogen or a descretionary radical, a novel process for their preparation and their use for the dyeing of organic substrates.
    Type: Grant
    Filed: March 31, 1999
    Date of Patent: November 20, 2001
    Assignee: Clariant Finance (BVI) Limited
    Inventor: Georg Schöfberger
  • Patent number: 6302922
    Abstract: There is provided a process for manufacturing woven or knitted fabrics comprising modifying the woven or knitted fabrics by applying a skeleton triazine cross-linking reaction using a sericin fixing method of raw silk to enhance its shrink and crease resistance and shape stability and thereafter removing the sericin using a special scouring. The process for manufacturing a woven or knitted fabric, comprises the steps of finishing and treating raw silk and/or cellulose fibers by using a silk sericin fixing method; doubling and twisting thus finished/treated raw silk and/or cellulose fibers; weaving or knitting the doubled and twisted yarns; swelling the woven or knitted fabric forming a cloth by dipping it in a bath; and, scouring the woven or knitted fabric swelled in the bath with an enzyme whereby the woven or knitted fabric is provided with shrink and crease resistance and shape stability.
    Type: Grant
    Filed: December 17, 1998
    Date of Patent: October 16, 2001
    Assignee: Sumitomo Corporation
    Inventor: Keiichiro Kanehisa
  • 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: 6228132
    Abstract: Modified silk processed according to an embodiment of the present invention is an all-natural stretchable silk textile processed without synthetics. The modified silk includes commercially-advantageous physical properties such as stretchability and it is machine washable, wrinkle resistant, stain resistant, and water proof/repellant, which render the silk very versatile and wearable. The process comprises collecting silk, boiling the silk in a water and vinegar solution, whereupon the silk becomes stretchable or elastic. The silk may then be soaked in water and vinegar to add a wrinkle resistant effect. The silk is then fabricated into a silk textile for example in a cross weave configuration, adding an elastic quality without synthetics. The finished product may then be soaked in lemon grass and water to make it stain resistant.
    Type: Grant
    Filed: December 17, 1999
    Date of Patent: May 8, 2001
    Assignee: Innovative Products
    Inventors: Phillip Prince, Irene Cheng
  • Patent number: 6143039
    Abstract: The present invention provides a dye mixture comprising one or more copper complex formazan dyes conforming to the formula (1) ##STR1## and one or more copper complex formazan dyes conforming to the formula (2) ##STR2## wherein R1, R2, Y1, Y2 and M are defined as given in claim 1, methods for preparing said dye mixtures and methods for dyeing and printing hydroxy- and/or carboxamido-containing materials using said dye mixtures.
    Type: Grant
    Filed: April 12, 1999
    Date of Patent: November 7, 2000
    Assignee: Dystar Textilfarben GmbH & Co.
    Inventors: Ron Pedemonte, Werner Russ
  • Patent number: 6120560
    Abstract: A method and apparatus for pattern dyeing of textile substrates in which the dyeing is done in two stages. In the first stage, a dye is uniformly applied in a manner that allows the dye to fix on contact. The uniformly dyed substrate is then moved under a series of spaced arrays, each array being associated with a separate color and being comprised of a plurality of individually controlled liquid dye applicators. Liquid dye of a given color is selectively applied through one or more dye applicators as the substrate passes under the array associated with that color. The applied dye remains unfixed until the substrate passes under all the arrays and the patterning is complete, whereupon all dye applied by the dye applicators is fixed by steaming or other appropriate application of energy to the substrate.
    Type: Grant
    Filed: March 8, 1999
    Date of Patent: September 19, 2000
    Assignee: Milliken & Company
    Inventors: Scott C. Miller, Frank W. Teaster, Matthew R. Walker
  • Patent number: 6090165
    Abstract: Dye mixtures which contain a dye of the formula ##STR1## together with a dye of the formula ##STR2## in which M.sup.+ in the dyes of the formulae (1) and (2) are ammonium cations ##STR3## which are identical to or different from one another, of an amine of the formula ##STR4## where R.sub.1 and R.sub.2 independently of one another are hydrogen, C.sub.1 --C.sub.6 alkyl or C.sub.2 --C.sub.6 alkyl substituted by hydroxyl or amino and, if appropriate, interrupted by an oxygen atom, and R.sub.3 is C.sub.2 --C.sub.6 alkyl substituted by hydroxyl or amino and, if appropriate, interrupted by an oxygen atom, afford dyeings having good fastnesses on nitrogen-containing or hydroxyl group-containing fibre materials.
    Type: Grant
    Filed: February 10, 1998
    Date of Patent: July 18, 2000
    Assignee: Ciba Specialty Chemicals Corporation
    Inventor: Roger Lacroix
  • Patent number: 6080689
    Abstract: A process is provided for manufacturing a high quality cloth having a width of 150 cm or any width in which likelihood of occurrence of defects such as color shading, rub marks, wrinkles and creases due to fabric dyeing method is eliminated and color fastness is enhanced.A process for manufacturing a woven or knit fabric using yarn dyed silk comprises the steps of dyeing (step 3) sericin which covers the periphery of silk fibers and fibroin which is located inside thereof into the same color; making yarn dyed silk (step 4, 5) by doubling and twisting the dyed silk fibers; making a cloth (step 6) by weaving or knitting the yarn dyed silk; swelling (step 7) the yarn dyed silk which constitutes the cloth by dipping the cloth into hot water in a tub; and decomposing (step 8) sericin of the yarn dyed silk of the cloth with an enzyme in hot water in a tub.
    Type: Grant
    Filed: August 12, 1998
    Date of Patent: June 27, 2000
    Assignee: Sumitomo Corporation
    Inventor: Keiichiro Kanehisa
  • 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: 6010542
    Abstract: A method of dyeing a substrate in carbon dioxide comprises the steps of (a) providing a dye composition comprising carbon dioxide, a dye, and a surfactant, the surfactant included in an amount sufficient to solubilize, emulsify or disperse the dye in the carbon dioxide; and then (b) dyeing said substrate with said dye composition.
    Type: Grant
    Filed: August 28, 1998
    Date of Patent: January 4, 2000
    Assignee: Micell Technologies, Inc.
    Inventors: James P. DeYoung, James B. McClain, Joseph M. DeSimone, Timothy J. Romack
  • Patent number: 5989297
    Abstract: Dye mixtures comprising at least one compound of the formula ##STR1## and at least one compound of the formula ##STR2## in which the variables are as defined in the claims,which are suitable as fibre-reactive dyes for dyeing widely varying fibre materials, are described.
    Type: Grant
    Filed: July 15, 1996
    Date of Patent: November 23, 1999
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Hans Reichert, Bernhard Muller, Athanassios Tzikas
  • Patent number: 5958086
    Abstract: Dye mixtures, which comprise at least one dye of formula ##STR1## and at least one dye of formulae (2) and (3) ##STR2## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4 R.sub.5, R.sub.6 R.sub.7, X.sub.1, X.sub.2, A.sub.1, A.sub.2, A.sub.3 and A.sub.4 are as defined in claim 1.The dye mixtures according to this invention are particularly suitable for dyeing or printing natural or synthetic polyamide fiber material.
    Type: Grant
    Filed: August 26, 1997
    Date of Patent: September 28, 1999
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Jean-Marie Adam, Rudolf Hurter
  • Patent number: 5948122
    Abstract: The present invention relates to methods for dyeing a material, comprising (a) treating the material with a dyeing system which comprises one or more reduced vat dyes and/or one or more reduced sulfur dyes; and (b) oxidizing the one or more reduced vat dyes or one or more reduced sulfur dyes adsorbed onto the treated material with an oxidation system comprising (i) an oxygen source and one or more enzymes exhibiting oxidase activity or (ii) a hydrogen peroxide source and one or more enzymes exhibiting peroxidase activity, to convert the one or more reduced dyes to their original oxidized insoluble colored forms; wherein the material is a fabric, yarn, fiber, garment or film made of cotton, diacetate, flax, fur, hide, leather, linen, lyocel, polyacrylic, polyamide, polyester, ramie, rayon, silk, tencel, triacetate, viscose or wool.
    Type: Grant
    Filed: November 24, 1998
    Date of Patent: September 7, 1999
    Assignees: Novo Nordisk Biotech, Inc., Novo Nordisk BioChem North America Inc., Novo Nordisk A/S
    Inventors: Feng Xu, Sonja Irene Salmon
  • Patent number: 5948125
    Abstract: A method of fixing dyes on natural or synthetic polyamide fiber material, wherein the fiber material is treated, before, during or after dyeing, with a liquor comprising a homo- or co-polymer having structural repeating units of at least one of formulae (1), (2) and (3) ##STR1## wherein the variables are as defined in the claims. The resulting dyeings and prints are distinguished by improved fastness to wetting, without the shade and the fastness to light being affected, and by improved fastness to ozone.
    Type: Grant
    Filed: May 11, 1998
    Date of Patent: September 7, 1999
    Assignee: Ciba Specialty Chemicals Corporation
    Inventor: Philippe Ouziel
  • Patent number: 5944855
    Abstract: Process for dichromatic or trichromatic dyeing or printing of natural or synthetic polyamide fiber material, which comprises using at least one blue-dyeing fiber-reactive anthraquinone dye of the formula in which R.sub.1 and R.sub.2 independently of one another are hydrogen or substituted or unsubstituted C.sub.1 -C.sub.12 alkyl, X.sub.1 is halogen, B.sub.1 is an organic bridge member and V.sub.1 is an aliphatic or aromatic amine containing a fibre-reactive group, together with at least one fiber-reactive sulfo group containing yellow- or orange-dyeing dye or together with at least one fiber-reactive sulfo group containing red-dyeing dye. Level dyeings with good fastness properties are obtained.
    Type: Grant
    Filed: May 8, 1998
    Date of Patent: August 31, 1999
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Urs Lehmann, Marcel Frick, Klaus Hannemann
  • Patent number: 5931975
    Abstract: Dyes of the formula ##STR1## in which A.sub.1 and A.sub.2 independently of one another are the radical of a monoazo, polyazo, metal complex azo, anthraquinone, phthalocyanine, formazan, azomethine, dioxazine, phenazine, stilbene, triphenylmethane, xanthene, thioxanthone, nitroaryl, naphthoquinone, pyrenequinone or perylenetetracarbimide dye,R.sub.1, R.sub.2, R.sub.3 and R.sub.4 independently of one another are hydrogen or substituted or unsubstituted C.sub.1 -C.sub.4 alkyl,Y.sub.1 and Y.sub.2 independently of one another are halogen, carboxypyridinium, substituted or unsubstituted amino or a heterocyclic radical bonded via a nitrogen atom andn is a number from 1 to 7,are particularly suitable for dyeing or printing fiber materials containing hydroxyl groups or nitrogen. Dyeings with good fastness properties are obtained with a high dyeing yield.
    Type: Grant
    Filed: October 16, 1997
    Date of Patent: August 3, 1999
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Bernhard Muller, Patric Nowack
  • Patent number: 5931974
    Abstract: A dye mixture comprising one or more disazo dyes composed of 1-amino-3,6-disulfo-8-naphthol as the coupling component and of two diazo components of the aniline series containing each a fiber-reactive group of the vinylsulfone series, one or more monoazo dyes composed of a carboxy-substituted benzoylamino-sulfo-naphthol coupling component and a diazo component of the aniline series, containing a fiber-reactive group of the vinylsulfone series and optionally one or two monoazo dyes with 1-amino-3,6-disulfo-8-naphthol as a coupling component to which is coupled in the ortho-position to the amino group a diazo component of the aniline series substituted by a fiber-reactive group of the vinylsulfone series. The dye mixtures yield on hydroxy- and/or carboxamido-containing fiber materials, such as cellulose fibers, in particular cotton, or on, for example, wool and synthetic polyamide fibers, deep black dyeings.
    Type: Grant
    Filed: July 28, 1998
    Date of Patent: August 3, 1999
    Assignee: Dystar Textilfarben GmbH & Co.
    Inventor: Ronald P. Pedemonte
  • Patent number: 5928386
    Abstract: A process for dyeing or printing natural or synthetic polyamide fiber material by the trichromatic technique, which comprises using at least one blue-dyeing dye of formula ##STR1## together with at least one red-dyeing dye of formula ##STR2## together with at least one yellow- or orange-dyeing dye of formula ##STR3##
    Type: Grant
    Filed: May 21, 1997
    Date of Patent: July 27, 1999
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Rudolf Hurter, Jean-Marie Adam, Francine Casi
  • 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: 5922865
    Abstract: Process for dyeing natural or synthetic polyamide fibre materials, which comprises dyeing these fibre materials with at least one anionic acid dye of the formula ##STR1## and treating the fibre material mentioned, during or after the dyeing process, with a colourless fixing agent which contains sulfo or sulfato groups and contains at least two fibre-reactive groups, whereR.sub.1 and R.sub.2 independently of one another are hydrogen or substituted or unsubstituted C.sub.1 -C.sub.4 alkyl,X.sub.1 is substituted or unsubstituted C.sub.1 -C.sub.8 alkyl, C.sub.5 -C.sub.7 cycloalkyl, phenyl or naphthyl,or the radical of the formula --N(R.sub.2)--X.sub.1 is a ring, which may contain further heteroatoms,Y.sub.1 is a radical of the formula ##STR2## in which B.sub.1 is a colourless organic bridge member,R.sub.3 is hydrogen or substituted or unsubstituted C.sub.1 -C.sub.4 alkyl andR.sub.4 is hydrogen or substituted or unsubstituted C.sub.1 -C.sub.8 alkyl, C.sub.5 -C.sub.7 cycloalkyl, phenyl or naphthyl, andA.sub.
    Type: Grant
    Filed: June 2, 1998
    Date of Patent: July 13, 1999
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Jean-Marie Adam, Jean-Pierre Bacher, Francine Casi
  • Patent number: 5914445
    Abstract: The present invention relates to novel dyeing assistant preparations comprising, as component (a), at least one amine oxide of the formula ##STR1## in which R is an aliphatic radical having 8 to 24 carbon atoms andR.sub.1 is an aliphatic radical which is unsubstituted or substituted by hydroxyl and has 1 to 24 carbon atoms, preferably 1 to 6 carbon atoms,as component (b), at least one compound of the formulaR.sub.2 --U--(R.sub.3 --O).sub.m --W (2),in whichR.sub.2 is an aliphatic radical having 8 to 24 carbon atoms,R.sub.3 is alkylene having 2 to 4 carbon atoms,U is --O-- or ##STR2## in which Z is a direct bond, (R.sub.3 --O)).sub.r or C.sub.1 -C.sub.6 alkylene andW.sub.1 is hydrogen or C.sub.1 -C.sub.6 alkyl which is unsubstituted or substituted by hydroxyl, carboxyl, isocyanato, phenyl, benzyloxymethylene or phenethyloxymethylene, m and r independently of one another are a number from 2 to 25,(R.sub.3 --O).sub.m is m identical or different radicals (R.sub.3 --O) and(R.sub.3 --O).sub.
    Type: Grant
    Filed: September 23, 1997
    Date of Patent: June 22, 1999
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Jorg Binz, Bruno Saladin, Martin Jollenbeck
  • Patent number: 5908474
    Abstract: The present invention provides a dye-fixing agent, obtainable by reacting in a first reaction step, either a homopolymer of diallylamine or N-methyl-diallylamine or a copolymer of diallylamine and N-methyl-diallylamine, with an epihalohydrin, the reaction optionally taking place in the presence of an aliphatic amine or polyamine, or reacting the homopolymer or copolymer with a product obtainable by a reaction of epihalohydrin with an aliphatic amine or polyamine, optionally followed by partial quaternization of the reaction product of the first reaction step, characterized in that the end product possesses at least 10 mol % of tertiary amino groups of the following formula (I), based on the total number of amino groups ##STR1## wherein X=halogen, with the provisos that when the homopolymer is an N-methyl-diallylamine, the presence of an aliphatic amine or a polyamine is obligatory in the reaction with the epihalohydrin and when the homopolymer is a homopolymer of diallylamine, partial quaternisation of the re
    Type: Grant
    Filed: September 15, 1997
    Date of Patent: June 1, 1999
    Assignee: Clariant Finance (BVI) Limited
    Inventors: Bernard Danner, Jurg Heller
  • Patent number: 5869731
    Abstract: There has been found1) a method for reducing the toxicity of spent liquors from dyeing with cationic dyes or mixtures thereof, characterized by the step of dyeing with cationic dyes having a computed electrostatic shielding energy (idealized hydration energy) of .gtoreq.50 kcal/mol,2) cationic, generally low toxicity dyes, their preparation and use for dyeing.
    Type: Grant
    Filed: September 25, 1997
    Date of Patent: February 9, 1999
    Assignee: Bayer Aktiengesellschaft
    Inventors: Henry Giera, Felix Reichel, Horst Berneth
  • Patent number: 5849040
    Abstract: A process is provided for manufacturing a high quality cloth having a width of 150 cm or any width in which likelihood of occurrence of defects such as color shading, rub marks, wrinkles and creases due to fabric dyeing method is eliminated and color fastness is enhanced.A process for manufacturing a woven or knit fabric using yarn dyed silk comprises the steps of dyeing (step 3) sericin which covers the periphery of silk fibers and fibroin which is located inside thereof into the same color; making yarn dyed silk (step 4, 5) by doubling and twisting the dyed silk fibers; making a cloth (step 6) by weaving or knitting the yarn dyed silk swelling (step 7) the yarn, tyed silk which constitutes the cloth by dipping the cloth into hot water in a tub; and decomposing (step 8) sericin of the yarn dyed silk of the cloth with an enzyme in hot water in a tub.
    Type: Grant
    Filed: May 22, 1997
    Date of Patent: December 15, 1998
    Assignee: Kanehisa Inc.
    Inventor: Keiichiro Kanehisa
  • Patent number: 5810891
    Abstract: A process is described for dyeing wool-containing fibre materials with anionic dyes, which comprises dyeing said materials in the presence of a wool protective agent containing at least one acrylamide homo- or copolymer. Rubfast level dyeings having reduced setting can be obtained according to this process.
    Type: Grant
    Filed: January 7, 1997
    Date of Patent: September 22, 1998
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Edvard Ham, Philippe Ouziel