Abstract: A dye mixture comprising a disazo dye conforming to the general formula (1),
and one or more monoazo dyes conforming to the general formula
and a dye of the general formula (3)
wherein
Y, M R1 to R12 and L1 to L3 are defined as given in claim 1.
Type:
Grant
Filed:
November 26, 2001
Date of Patent:
March 30, 2004
Assignee:
DyStar Textilfarben GmbH & Co. Deutschland KG
Abstract: The present invention refers to a dye mixture comprising an azo dye of the formula (I)
wherein
each of X and X1 independently is chlorine or bromine;
R1 is absent or is C1-4 alkyl; and
each of R2 and R3 independently is hydrogen, C1-6 alkyl or cyanoethyl;
but when R1 is absent, R2 is n-butyl or cyanoethyl and R3 is cyanoethyl;
and further dye components according to claim 1,
a method for the preparation of such mixtures and a method for coloring a synthetic textile material or fiber blend thereof using such mixtures.
Type:
Grant
Filed:
September 13, 2001
Date of Patent:
January 27, 2004
Assignee:
DyStar Textilfarben GmbH & Co. Deutschland KG
Inventors:
David Brierley, Ian Weddell, David Newton
Abstract: Hydroxypyridonemethide azo dyes conforming to the formula (I) or its tautomeric forms
where X1 to X4, R1 and R2 are each as defined in the description part,
are very useful for dyeing and printing hydrophobic synthetic fiber materials and their blends with natural fiber materials.
Type:
Grant
Filed:
December 4, 2002
Date of Patent:
September 30, 2003
Assignee:
DyStar Textilfarben GmbH & Co. Deutschland KG
Abstract: Deep black-dyeing dye mixtures comprising a disazo dye conforming to the general formula (1),
and one or more disazo dyes conforming to the general formula (2),
wherein the amide group is in the 6, 7, or 8 position relative to the hydroxy group and wherein:
M, n, W, R1, R2, R3, R4, R5, R11, L1, L2, L3 are as defined in claim 1 methods for their preparation and use thereof for dyeing hydroxyl- and/or carboxamido-containing fiber material.
Type:
Grant
Filed:
December 19, 2001
Date of Patent:
September 23, 2003
Assignee:
DyStar Textilfarben GmbH & Co. Deutschland KG
Inventors:
Ronald Pedemonte, Joachim Steckelberg, Werner Russ
Abstract: Monoazo dyestuffs of the formula (1)
wherein
Y is vinyl or is ethyl which is substituted in the &bgr;-position by a substituent which can be eliminated by the action of an alkali, forming the vinyl group;
M, X, are groups customary to dyestuffs,
R1, R2 is hydrogen methyl, methoxy or sulfo;
Q is cyanamido or is a group of the formula (a) or (b):
A, B, D are hydrogen, optionally substituted C1-C6 alkyl or phenyl, or is alternately a group of the formula (a) or (b) wherein (a) is a cyclic ring system having a tertiary nitrogen of (b) is a cyclic having a quarternary nitrogen;
n is 0 if Q is a group of the formula (a) and n is 1 if Q is a group of formula (b);
W— is a halogenide or the equivalent of a divalent anionic group;
The invention further relates to the method for preparing the dyestuff and use for dyeing.
Type:
Grant
Filed:
July 24, 2001
Date of Patent:
September 23, 2003
Assignee:
DyStar Textilfarben GmbH & Co. Deutschland KG
Abstract: The present invention relates to textile spun-dyed fiber material comprising synthetic fibers or mixtures of cellulosic and synthetic fibers for producing military camouflage articles, wherein the synthetic fiber fraction is spun-dyed with a dye having a chlorophyll-like reflectance in the IR region, and to its use for producing military camouflage print articles.
Type:
Grant
Filed:
December 20, 2000
Date of Patent:
July 8, 2003
Assignee:
Dystar Textilfarben GmbH & Co Deutschland KG
Abstract: Described are aqueous solutions comprising sodium hydroxide and potassium carbonate in a molar ratio of 1:1.7 to 1:0.5, which are useful for preparing alkaline dyeing liquors, especially padding liquors, of fiber-reactive dyes for producing dyeings on cellulosic textile material.
Type:
Grant
Filed:
July 31, 2000
Date of Patent:
March 11, 2003
Assignee:
DyStar Textilfarben GmbH & Co. Deutschland KG
Abstract: The present invention claims a dye mixture comprising at least one dyestuff of the general formula (1)
and at least one dyestuff of the general formula (2)
where
M, Y1, Y2, Y3, R1, R2, R3, R4, R5, R6, W, V, L and G are defined as given in claim 1, a process for its preparation and its use for dyeing and printing hydroxyl-and/or carboxamido-containing material.
Type:
Grant
Filed:
March 13, 2000
Date of Patent:
October 15, 2002
Assignee:
DyStar Textilfarben GmbH & Co. Deutschland KG
Inventors:
Joachim Steckelberg, Ronald Pedemonte, Manfred Hoppe
Abstract: The present invention refers to a polycyclic dye of the formula (I)
wherein
each of R1, R2, R4 and R5, independently, is hydrogen, alkyl or alkoxy;
R3 is hydrogen, alkyl, optionally substituted alkoxy or amino; and
Y is a straight or branched chain C1-8 alkylene group,
methods for its preparation and a method for coloring synthetic fibre material or fibre blend thereof using such polycyclic dye.
Type:
Grant
Filed:
September 25, 2001
Date of Patent:
October 8, 2002
Assignee:
DyStar Textilfarben GmbH & Co. Deutschland KG
Abstract: Disclosed are water-soluble dyes, such as azo dyes, metal complex dyes, anthraquinone, phthalocyanine and formazan dyes which, optionally via a bridge member, possess a fiber-reactive group of the vinyl sulfone series and further contain a 4-cyanamido-1,3,5-triazin-6-ylamino radical which is 2-substituted by a group of the general formula (2)
where Rz is hydrogen, lower alkyl optionally substituted by alkyl, hydroxyl, cyano, lower alkoxy, carboxyl, sulfamoyl, sulfo or sulfato or an optionally substituted phenyl radical, or is a cyclohexyl radical or an optionally substituted phenyl radical, W is an alkyl radical which is substituted by a reactive group and may be interrupted by a hetero atom, A is zero or 1 and B is 1 or 2, subject to the proviso that the sum of (A+B) is 2.
Type:
Grant
Filed:
May 22, 2000
Date of Patent:
September 3, 2002
Assignee:
DyStar Textilfarben GmbH & Co. Deutschland KG
Abstract: Concentrated leuco indigo solutions useful for dyeing cellulosic textile material consist essentially of from 25 to 55% by weight of leuco indigo in the form of the leuco indigo salt, an amount which is essentially stoichiometrically sufficient to convert the leuco indigo into the neutral leuco indigo salt of a mixture of at least two alkali metal hydroxides wherein none of the alkali metal hydroxides accounts for more than 70 mol %, and water.
Type:
Grant
Filed:
January 12, 2001
Date of Patent:
August 6, 2002
Assignee:
DyStar Textilfarben GmbH & Co. Deutschland KG
Inventors:
Manfred Gäng, Rudolf Krüger, Peter Miederer
Abstract: Dye mixture comprising water-soluble fiber-reactive dyes, preparation thereof and use thereof
The present invention relates to dye mixtures comprising one or more azo dyes of the general formula (1) and one or more azo dyes of the general formula (2)
where the variables are each as defined in claim 1, processes for preparing them and their use for dyeing and printing hydroxyl- and/or carboxamido-containing material.
Type:
Grant
Filed:
February 23, 2000
Date of Patent:
May 21, 2002
Assignee:
DyStar Textilfarben GmbH & Co. Deutschland KG
Abstract: A water-insoluble monoazo dye represented by the following structural formula [I]
having a crystal modification characterized by an X-ray diffraction pattern (CuK&agr;) showing one strong peak at a diffraction angle (2&thgr;) of 11.1±0.1° and also four intermediate peaks at 8.1±0.1°, 21.8±0.1°, 23.1±0.1° and 25.2±0.1°.
Type:
Grant
Filed:
August 31, 2001
Date of Patent:
May 14, 2002
Assignee:
DyStar Textilfarben GmbH & Co. Deutschland KG
Abstract: Reactive dyestuffs of the formula (I)
wherein
R1 denotes H or unsubstituted or substituted C1-C4-alkyl,
R2 denotes C1-C4-alkyl,
X denotes F, Cl or Br,
Z denotes —CH═CH2 or —CH2CH2—OSO3H,
R15 denotes H, C1-C4-alkyl, C1-C4-alkoxy, Cl, Br, acylamino, amino carbonylamino, C1-C4-alkylsulphonylamino or arylsulphonylamino and
R18 denotes H, C1-C4-alkyl, C1-C4-alkoxy, OH or SO3H. The invention also relates to a process for the preparation of the reactive dyestuff and their use of dyeing fibre materials containing OH groups and NH groups.
Type:
Grant
Filed:
October 26, 1999
Date of Patent:
April 23, 2002
Assignee:
DyStar Textilfarben GmbH & Co. Deutschland KG
Abstract: The present invention relates to mixtures of reactive dyes comprising at least two dyes selected from the group consisting of the general formulae (1), (2) and (3)
where D1, D2, D3, R1, R2, Hal and M 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:
Grant
Filed:
April 19, 2000
Date of Patent:
April 9, 2002
Assignee:
DyStar Textilfarben GmbH & Co. Deutschland KG
Inventors:
Ronald Pedemonte, Uwe Reiher, Christina Schumacher, Martin Kunz, Joachim Eichhorn
Abstract: Water-soluble monoazo dyes, their preparation and use Dyes of the formula (1):
in which
M is hydrogen, ammonium, an alkali metal or the equivalent of an alkaline earth metal;
X is sulfonyl or —COCH2O—;
R1, R2 and R3 independently of one another are hydrogen, halogen, for example fluorine, chlorine or bromine, unsubstituted or chloro- or hydroxy-substituted C1 to C4 alkoxy, for example 2-chloroethoxy or 2-hydroxyethoxy, and the sulfo group is in position 3 or 4 to the NH group, their preparation, and their use for dyeing or printing carboxamido-containing materials.
Abstract: Mixtures of fiber-reactive dyes, preparation thereof and use thereof for dyeing fiber materials The present invention relates to dye mixtures comprising one or more dyes of the general formula (I)
and one or more dyes of the general formula (II)
where B, M, R1, R2, R3, R4, X, Y, Z1, Z2, Z3 and Z4 are each as defined in claim 1, processes for their preparation, and their use for dyeing or printing hydroxyl- and/or carboxamido-containing material.
Abstract: The present invention relates to apparatus for the wet-processing of textile material, essentially comprising a vessel (1) comprising a fabric inlet (2), at least one nozzle (3) for applying a treatment liquor, an intensive zone (4) and a fabric outlet (5), wherein the vessel does not include a scray and has a minimized dead space through accurate fitment of the nozzle (3) and the intensive zone (4) into the vessel (1), and to a process for the wet-processing of textile material in the apparatus.
Type:
Grant
Filed:
June 3, 1999
Date of Patent:
February 5, 2002
Assignee:
DyStar Textilfarben GmbH & Co. Deutschland KG