Patents Assigned to DyStar Textilfarben GmbH
  • Yellow disperse dye mixture which has a high level of light fastness
    Patent number: 7097670
    Abstract: The present inventions refers to a dye mixture comprising from 25 to 80% by weight with respect to the total dyestuff fraction of the yellow dyestuff represented by the structural formula [1] and from 75 to 20% by weight with respect to the total dyestuff fraction of a yellow dyestuff represented by the structural formula [2] wherein R denotes a C1 to C4 hydroxyalkyl group.
    Type: Grant
    Filed: August 2, 2003
    Date of Patent: August 29, 2006
    Assignee: DyStar Textilfarben GmbH & Co. Deutschland KG
    Inventors: Toshio Hihara, Hiroshi Inoue, Wataru Seto
  • Dye mixtures of fibre-reactive azo dyes and use thereof for dyeing material containing hydroxy-and/or carboxamido groups
    Publication number: 20060162100
    Abstract: Mixtures of fibre reactive dyes comprising one or more dyestuffs of the formula (I) and one or more dyestuffs of the general formula (II) wherein Ar1, Ar2, X1, X2, L and M are as defined in claim 1.
    Type: Application
    Filed: November 4, 2003
    Publication date: July 27, 2006
    Applicant: DyStar Textilfarben GmbH & Co. Deutschland KG
    Inventors: Warren Ebenezer, Werner Russ
  • AOX-free navy and black disperse dyes
    Patent number: 7060807
    Abstract: Monoazo dyestuffs of the general formula (1) wherein R1, R2, R3 and n are as defined in claim 1, method for their preparation and a method for colouring a synthetic textile material or fiber blend thereof using such dyestuffs.
    Type: Grant
    Filed: September 22, 2004
    Date of Patent: June 13, 2006
    Assignee: DyStar Textilfarben GmbH & Co. Deutschland KG
    Inventor: Kiyoshi Himeno
  • Dye mixtures of fiber-reactive azo dyes and the use thereof
    Patent number: 7060114
    Abstract: Reactive dye mixtures containing one or more dyes of the general formula (I) and one or more dyes of the general formula (II) or one more dyes of the general formula (III) where D?1 to D4, R31 to R33, Z31, a, b, c, f, r, t and M are each as defined in claim 1, are prepared and used for dyeing hydroxyl- and carboxamido-containing material.
    Type: Grant
    Filed: May 28, 2002
    Date of Patent: June 13, 2006
    Assignee: DyStar Textilfarben GmbH & Co. Deutschland KG
    Inventors: Joachim Eichhorn, Werner Russ
  • Mixtures of fiber-reactive azo dyes, production thereof and use thereof
    Publication number: 20060117500
    Abstract: Mixtures of fiber-reactive azo dyes, production thereof and use thereof Dye mixtures comprising a dye of the hereinbelow indicated and defined general formula (1) and a dye of the hereinbelow indicated and defined general formula (2) where M, m, D, Y1, R1; R2, R3, R4 and Z are each as defined in claim 1, their production and their use for dyeing and printing hydroxyl- and/or carboxamido-containing fibers
    Type: Application
    Filed: November 29, 2005
    Publication date: June 8, 2006
    Applicant: DyStar Textilfarben GmbH & Co. Deutschland KG
    Inventors: Stefan Meier, Uwe Reiher, Werner Russ, Christian Schumacher
  • Fibre reactive azo dyes
    Patent number: 7038023
    Abstract: The present invention refers to dyestuffs of the formula I wherein R is an optionally substituted alkyl group; each of R1, R2 and R3, independently, is H or an optionally substituted alkyl group; each of X1 and X2, independently, is a labile atom or group; and each of A1 and A2, independently, is a chromophoric residue, processes for their preparation and their use for dyeing and printing hydroxy- and/or carboxamido-containing fiber materials.
    Type: Grant
    Filed: July 29, 2004
    Date of Patent: May 2, 2006
    Assignee: DyStar Textilfarben GmbH & Co. Deutschland KG
    Inventors: Warren James Ebenezer, Werner Russ
  • Black dye mixtures of fiber-reactive azo dyes and the use thereof for dyeing fiber material containing hydroxy and/or carbonamide groups
    Patent number: 7015335
    Abstract: Described are mixtures of fiber-reactive azo dyes whereby black dyeings, including prints, are obtained on hydroxyl- and/or carboxamido-containing fiber materials, such as cellulose fiber materials, wool and synthetic polyamide fibers. The dye mixtures comprise one or more disazo dyes conforming to the general formula (1), one or more monoazo dyes conforming to the general formula (3), one or more monoazo dyes of the general formula (4) and/or (4a), optionally one or more monoazo dyes (2) and optionally one or more monoazo dyes conforming to the general formula (3a), as described in claim 1.
    Type: Grant
    Filed: December 15, 2001
    Date of Patent: March 21, 2006
    Assignee: DyStar Textilfarben GmbH & Co. Deutschland KG
    Inventor: Jörg Dannheim
  • Dye mixture of water soluble fiber-reactive dyes, method for their production and the use thereof
    Patent number: 6991661
    Abstract: Water-soluble fiber-reactive dyes, preparation thereof and use thereof Dye mixtures which include the dyes of the general formula (1) and dyes of the general formula (2): their preparation and their use for dyeing or printing hydroxyl- and/or carboxamido-containing material, preferably fiber material.
    Type: Grant
    Filed: July 25, 2001
    Date of Patent: January 31, 2006
    Assignee: DyStar Textilfarben GmbH & Co. Deutschland KG
    Inventors: Joachim Steckelberg, Christian Schumacher
  • Textile spun-dyed fiber material and use thereof for producing camouflage articles
    Publication number: 20060010620
    Abstract: The present invention relates to textile fiber material comprising spun-dyed aramid fibers or mixtures of spun-dyed aramid fibers and undyed cellulosic fibers for producing military camouflage articles, wherein the aramid fiber fraction is spun-dyed with a colorant having a chlorophyll-like reflectance in the IR region, and to its use for producing military camouflage print articles.
    Type: Application
    Filed: August 16, 2003
    Publication date: January 19, 2006
    Applicant: DyStar Textilfarben GmbH & Co. Deutschland KG
    Inventors: Guido Krabbe, Horst-Roland Mach
  • Method for dyeing with sulfur and sulfur vat dyes
    Publication number: 20050257327
    Abstract: The present invention relates to a process for dyeing fiber materials with sulfur dyes by regenerating the dyebath redox potential, which comprises, during the dyeing process, the dyeing liquor being circulated between the dyeing apparatus and an attached electrolytic cell and the sulfur dye which has been unwantedly oxidized in the dyebath being cathodically reduced in the electrolytic cell.
    Type: Application
    Filed: July 23, 2003
    Publication date: November 24, 2005
    Applicant: DyStar Textilfarben GmbH & Co. Deutschland KG
    Inventors: Thomas Bechtold, Wolfgang Schrott, Thorsten Huls, Marc-Steffen Muche, Bertram Wendt
  • Dye mixtures of fiber-reactive azodyes and use thereof
    Patent number: 6962611
    Abstract: Reactive dye mixtures containing one or more dyes of the hereinbelow indicated and defined general formula (I) and one or more dyes of the hereinbelow indicated and defined general formula (II) where D1 to D3, M, n and Y are each as defined in claim 1, are prepared and used for dyeing hydroxyl- and carboxamido-containing material.
    Type: Grant
    Filed: May 28, 2002
    Date of Patent: November 8, 2005
    Assignee: DyStar Textilfarben GmbH & Co. Deutschland KG
    Inventor: Joachim Eichhorn
  • Water-soluble fiber-reactive disazo dyes, method for producing the same and the use thereof
    Publication number: 20050241079
    Abstract: The invention relates to dyes of general formula (1), in which R11, R2, M, Z, v and x are defined as cited in claim 1, to the production of the same and to the use of said dyes for colouring or printing material containing hydroxy and/or carbonamide groups, preferably fibrous material.
    Type: Application
    Filed: June 10, 2003
    Publication date: November 3, 2005
    Applicant: DyStar Textilfarben GmbH & Co. Deutschland KG
    Inventors: Werner Russ, Gunther Schwaiger, Stefan Meier
  • Dye mixtures of fiber reactive azo dyes, production and use
    Publication number: 20050223508
    Abstract: The invention relates to reactive dye mixtures containing one or several dyes of general formula (I), one or several dyes of general formula (II) and, optionally, one or several dyes or general formula (IIIa)-(IIIf), wherein D1-D8, R, R1—R39, Z, Z1-Z3 and M have the meaning as cited in claim 1. The invention also relates to the production and the use thereof in order to dye and print fibrous material containing hydroxy and/or carbonamide groups.
    Type: Application
    Filed: March 18, 2003
    Publication date: October 13, 2005
    Applicant: DyStar Textilfarben GmbH & Co. Deutschland KG
    Inventor: Joachim Eichhorn
  • Black dye mixtures of fiber-reactive AZO dyes and use thereof for dyeing material containing hydroxy- and/or carboxamido groups
    Patent number: 6946006
    Abstract: The present invention describes a dye mixture containing at least one dyestuff of the general formula and one or more reactive dyes of the general formula (II), wherein D1, D2, D21, R21, Z21, M and n are defined in the specification, a process for its preparation and its use for dyeing and printing hydroxyl- and/or carboxamido-containing material.
    Type: Grant
    Filed: May 29, 2002
    Date of Patent: September 20, 2005
    Assignee: DyStar Textilfarben GmbH & Co. Deutschland KG
    Inventors: Joachim Eichhorn, Ronald Pedemonte
  • Fibre reactive scarlet azo dyes
    Patent number: 6946549
    Abstract: The present invention refers to dyestoffs of the formula I wherein Ar is a group of the formula II or of the formula III, D is a group of the formula IV, or of the formula V wherein the variables are defined as given in claim 1, processes for their preparation and their use for dyeing and printing hydroxy- and/or carboxamido-containing fiber materials.
    Type: Grant
    Filed: May 4, 2002
    Date of Patent: September 20, 2005
    Assignee: DyStar Textilfarben GmbH & Co. Deutschland KG
    Inventor: Warren James Ebenezer
  • Water-soluble fiber-reactive dyes, method for the production and use thereof
    Publication number: 20050198748
    Abstract: Dyes of general formula (I) wherein R1, R2, M, Y and x have the meaning cited in the description, the production and use thereof for dyeing or printing material containing hydroxy and/or carbonamide groups, preferably fiber material.
    Type: Application
    Filed: April 22, 2003
    Publication date: September 15, 2005
    Applicant: DyStar Textilfarben GmbH & Co. Deutschland KG
    Inventors: Gunther Schwaiger, Stefan Meier, Werner Russ
  • Dye mixtures of fiber-reactive azo dyes, their preparation and use
    Publication number: 20050166339
    Abstract: Reactive dye mixtures comprising one or more dyes of the general formula (I), one or more dyes of the general formula (II) and optionally one or more dyes of the general formula (III) where D1, D2, D3, D4, D5, R0, R*, R**, T, b, f, v, and M are as defined in claim 1, the dyes of the general formulae (I)-(III) containing at least one fiber-reactive group of the formula —SO2-Z or -Z2, are prepared and used for dyeing hydroxyl- and/or carboxamido-containing fiber material.
    Type: Application
    Filed: March 18, 2003
    Publication date: August 4, 2005
    Applicant: DyStar Textilfarben GmbH & Co.Deutschland KG
    Inventors: Joachim Eichhorn, Werener Russ, Stefan Meier, Uwe Mrotzeck
  • Reactive azo dyes, their preparation and their use
    Publication number: 20050159592
    Abstract: The present invention relates to reactive dyes of the general formula (1) where Y is a heterocyclic reactive group of the general formula (2) or (3) where X1 to X5 are each as defined in claim 1, processes for their preparation and their use for dyeing and printing hydroxyl- and/or carboxamido-containing materials.
    Type: Application
    Filed: January 10, 2005
    Publication date: July 21, 2005
    Applicant: DyStar Textilfarben GmbH & Co.Deutschland KG
    Inventors: Stefan Ehrenberg, Jorg Worner, Tracy Livesey
  • Fiber-reactive azo dyes, preparation thereof and use thereof
    Publication number: 20050150063
    Abstract: Reactive dyes as per the hereinbelow indicated and defined general formula (I) where D1 and D2, R and R* and also M are each as defined in claim 1, processes for their preparation and their use for dyeing or printing hydroxyl- and/or carboxamido-containing fiber material.
    Type: Application
    Filed: April 15, 2003
    Publication date: July 14, 2005
    Applicant: DyStar Textilfarben GmbH & Co. Deutschland KG
    Inventor: Joachim Eichhorn
  • Water-soluble reactive mono- and di-azo dyes
    Publication number: 20050148764
    Abstract: Water-soluble monoazo and disazo dyes The present invention relates to dyes of the general formula (I) where X1 is a radical —CH2CH2Z or —CH?CH2, Z being analkali-eliminable group, X2 is alkyl, alkoxy, halogen, COOM or SO3M, X3 is a heterocyclic reactive group of the general formula (IIa) or (IIb) or a reactive group of the formula (IIc), (IId) or (IIe) the stated variables being as defined in claim 1, to processes for preparing them and to their use for dyeing and printing hydroxyl-containing and/or carboxamido-containing material.
    Type: Application
    Filed: March 18, 2003
    Publication date: July 7, 2005
    Applicant: DyStar Textilfarben GmbH & Co. Deutschland KG
    Inventors: Stefan Meier, Werner Russ, Stefan Ehrenberg