With Sulfur Dye Or Vat Dye Patents (Class 8/640)
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Patent number: 8834581Abstract: Described are dyes of formula (I) where R1 is hydrogen, alkyl, alkoxy, trifluoromethyl or halogen, M is hydrogen, an alkali metal cation or an optionally substituted ammonium cation, R2 and R3 are each independently hydrogen, alkyl or alkoxy, R4 is alkyl or alkoxy, R5 and R6 are each independently moieties of the formula —(CmH2m)—O—CnH2n+1, m is an integer from 3 to 6, and n is an integer from 0 to 8. These dyes are useful for dyeing and printing materials having polar groups.Type: GrantFiled: December 17, 2011Date of Patent: September 16, 2014Assignee: DyStar Colours Distribution GmbHInventors: Aloysius Engel, Michael Joerss, Clemens Grund, Bernd Hostasch, Gunter Görlitz
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Patent number: 8734534Abstract: The present invention relates to new azo dyes, a process for their preparation, and their use for dyeing or printing fibrous materials, to produce materials with brownish shades.Type: GrantFiled: November 29, 2011Date of Patent: May 27, 2014Assignee: Kemira OyjInventors: Helmut-Martin Meier, Christof Heide, Klaus-Günter Strumpf, Thomas Hübbe
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Publication number: 20140082860Abstract: An object of the present invention is provide a disperse dye composition that has the light fastness required of synthetic fiber materials for automotive interiors that are exposed to sunlight at high temperature and high humidity, and that has good blue, red, and yellow dyeability. This object is achieved by a mixed disperse dye composition comprising a blue disperse dye composition having a specific composition ratio of five specific types of disperse dyes, and other specific yellow and/or red disperse dyes. The invention makes it possible to provide a disperse dye composition having not only high fastness of each color but light fastness with a favorable balance of the three primary colors, with the dye properties of each color equal during dyeing, and good dye color reproducibility, as well as by a dyeing method using this dye.Type: ApplicationFiled: June 7, 2012Publication date: March 27, 2014Applicant: NIPPON KAYAKU KABUSHIKI KAISHAInventors: Yoshiyuki Sato, Toru Yamaguchi
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Patent number: 8409300Abstract: Novel disperse azo dyes of formula (I), and processes for preparation thereof. These dyes possess superior washing fastness, sublimation fastness and light fastness.Type: GrantFiled: December 23, 2010Date of Patent: April 2, 2013Assignee: Colourtex Industries LimitedInventors: Pankaj Desai, Kiyoshi Himeno, Nikhil Desai
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Patent number: 8361168Abstract: 1. Trisazo dyes of general formula (IV) and of general formula (V) wherein A, B, M, R1 to R18, m, n, o and p are as described in the specification, are excellent black dyes for dyeing and printing of paper, other cellulose containing materials and textiles materials and, in particular, for the preparation of recording liquids for ink jet printing and for writing utensils.Type: GrantFiled: December 22, 2011Date of Patent: January 29, 2013Inventors: Kurt Baettig, Damien Moigno
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Patent number: 8323358Abstract: The present invention refers to a red-dyeing acid dye mixture comprising a dye of the formula (I) and at least one dye of the formula (II) a process for its manufacturing and a process for dyeing and printing of natural or synthetic polyamide fiber material in which it used.Type: GrantFiled: February 6, 2006Date of Patent: December 4, 2012Assignee: DyStar Colours Deutschland GmbHInventors: Thomas Ruchser, Andreas Giehl
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Patent number: 8025704Abstract: Agent having at least one non-ionic component having an HLB of 8.0 or less are disclosed, as well as the combination of a blue and red substantive dye wherein the weight ratio of the blue dyes as opposed to the red dyes is 1 or greater. Further disclosed are agents for dyeing human hair blond having at least one oxidizing agent preparation and optionally a bleaching force reinforcing preparation. The agents make it possible to avoid undesired color shifts towards yellow or red nuances during blond hair dyeing.Type: GrantFiled: February 8, 2011Date of Patent: September 27, 2011Assignee: Henkel AG & Co. KGaAInventor: Hartmut Manneck
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Patent number: 7699898Abstract: Dye mixtures comprising one or more, such as two or three, preferably 1 or 2, dyes of the formula (1) and at least 2 dyes of the formula (2) in which Me, M, n, and V1 to V11 are as defined in claim 1, their preparation, and their use for dyeing and printing hydroxyl- and carboxamido-containing material.Type: GrantFiled: March 15, 2006Date of Patent: April 20, 2010Assignee: DyStar Textilfarben GmbH & Co. Deutschland KGInventors: Thomas Ruchser, Oliver Steinau, Andreas Giehl
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Patent number: 7632316Abstract: The present invention relates to dyes of the general formula (1) where M and X are each as defined in claim 1, dye mixtures comprising one or more of the dyes of the general formula (1) and also one or more further fiber-reactive dyes, processes for their preparation, their use and printing inks comprising same.Type: GrantFiled: May 24, 2006Date of Patent: December 15, 2009Assignee: DyStar Textilfarben GmbH & Co. Deutschland KGInventors: Stefan Meier, Uwe Reiher, Werner Hubert Russ, Günther Schwaiger
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Patent number: 6802873Abstract: The invention relates to a method for producing dyed textile materials consisting of polyester and polyamide. The textile material is dyed by means of pigments or a disperse dye that stains polyester. Surplus dye is removed. The polyamide portion is dyed using vat dyes, leuco vat dyes, sulphide dyes or soluble sulphide dyes. Said dyes are vatted if this is required for obtaining a solubility and are oxidatively converted into the real dyes after attaching.Type: GrantFiled: July 31, 2002Date of Patent: October 12, 2004Assignee: Carl Freudenberg KGInventors: Heike Bartl, Kurt Jörder
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Patent number: 6302925Abstract: A process for dyeing fibrous substrates which comprises the steps of: providing a fibrous substrate; providing at least one sulfur dye; providing at least one reduction stable direct dye; and applying said reduction stable direct dye and sulfur dye to said fibrous substrate in the presence of a suitable reducing agent. Further, it has been surprising to find that these reduction stable direct dyes can be processed without a sulfur dye present. This results in a process for dyeing fibrous substrates which comprises the steps of: providing a fibrous substrate; providing a reduction stable direct dye; and applying said reduction stable direct dye to said fibrous substrate in the presence of a suitable reducing agent.Type: GrantFiled: November 22, 1999Date of Patent: October 16, 2001Assignee: Clariant Finance (BVI) LimitedInventors: J. Michael Hipp, Mark S. Carlough, William T. Sherrill, Peter Stahala
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Patent number: 6287349Abstract: A process for dyeing fibrous substrates which comprises the steps of: providing a fibrous substrate; providing at least one sulfur dye; providing at least one reduction stable direct dye; and applying said reduction stable direct dye and sulfur dye to said fibrous substrate in the presence of a suitable reducing agent. Further, it has been surprising to find that these reduction stable direct dyes can be processed without a sulfur dye present. This results in a process for dyeing fibrous substrates which comprises the steps of: providing a fibrous substrate; providing a reduction stable direct dye; and applying said reduction stable direct dye to said fibrous substrate in the presence of a suitable reducing agent.Type: GrantFiled: November 22, 1999Date of Patent: September 11, 2001Assignee: Clariant Finance (BVI) LimitedInventors: J. Michael Hipp, Mark S. Carlough, William T. Sherrill, Peter Stahala
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Patent number: 6019800Abstract: A process for dyeing fibrous substrates which comprises the steps of: providing a fibrous substrate; providing at least one sulfur dye; providing at least one reduction stable direct dye; and applying said reduction stable direct dye and sulfur dye to said fibrous substrate in the presence of a suitable reducing agent. Further, it has been surprising to find that these reduction stable direct dyes can be processed without a sulfur dye present. This results in a process for dyeing fibrous substrates which comprises the steps of: providing a fibrous substrate; providing a reduction stable direct dye; and applying said reduction stable direct dye to said fibrous substrate in the presence of a suitable reducing agent.Type: GrantFiled: December 17, 1998Date of Patent: February 1, 2000Assignee: Clariant Finance (BVI) LimitedInventors: J. Michael Hipp, Mark S. Carlough, William T. Sherrill, Peter Stahala
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Patent number: 5972050Abstract: Mixtures comprise the dye of the formula I ##STR1## the dye C.I. Sulphur Black 1 (53 185), at least one disazo dye of the formula II ##STR2## where the ring A, X.sup.1, R.sup.1, R.sup.2 and R.sup.Type: GrantFiled: October 26, 1998Date of Patent: October 26, 1999Assignee: BASF AktiengesellschaftInventors: Matthias Wiesenfeldt, Johannes Peter Dix, Rolf Streicher, Manfred Herrmann, Gunther Lamm
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Patent number: 5951717Abstract: A dyeing process comprises continuous dyeing of cellulosic circular knit, which comprises impregnating a rope of said circular knit with an aqueous liquor comprising one or more dissolved and/or dispersed dyes, any necessary fixing alkali and optionally further assistants at a temperature between 20 and 95.degree. C., squeezing off said impregnated rope and subsequently feeding said squeezed-off rope without intermediary drying into an apparatus in which said rope is opened out into a crease-free state and said dye is fixed in an unsaturated steam/air mixture which is at 100 to 160.degree. C. at an autogenous wet temperature of the moist rope of between 50 and 95.degree. C. and a fixing time of at least 20 seconds.Type: GrantFiled: March 10, 1998Date of Patent: September 14, 1999Assignee: DyStar Textilfarben GmbH & Co.Inventors: Uwe Mrotzeck, Andreas Schrell, Thomas Nauroschat, Erol Ozcan, Alfred Tressel
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Patent number: 5358536Abstract: According to the present invention, there can be provided a black dyestuff for heat-sensitive transfer record comprising at least one orange dyestuff represented by the formulaAr.sub.1 --N=N--Ar.sub.2 --N=N--Ar.sub.3 ( 1)[wherein each of Ar.sub.1, Ar.sub.2 and Ar.sub.3 is independently an aryl group which may have a substituent] and at least one blue dyestuff represented by the formula ##STR1## [wherein each of R.sub.1, R.sub.2 and R.sub.3 is independently a hydrogen atom, halogen atom, nitro group, hydroxyl group, alkyl group which may have a substituent, alkoxy group, alkylsulfonylamino group or alkylcarbonylamino group, and each of R.sub.4 and R.sub.5 is independently an alkyl group which may have a substituent, and a black heat-sensitive transfer sheet in which the above-mentioned dyestuff is used.Type: GrantFiled: July 31, 1992Date of Patent: October 25, 1994Assignee: Mitsui Toatsu Chemicals, IncorporatedInventors: Hitoshi Koshida, Isamu Ghoda, Tsukasa Ohyama, Keisuke Takuma
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Patent number: 5346510Abstract: Dye mixtures comprising the dye of the formula I ##STR1## where R.sup.1 is in each instance the radical of the formula ##STR2## and a dye of the formula ##STR3## where one of the two radicals R.sup.2 and R.sup.3 is methoxy and the other is hydroxysulfonyl, andR.sup.4 is hydrogen or hydroxysulfonyl, are useful for dyeing or printing hydroxyl- or nitrogen-containing organic substrates.Type: GrantFiled: October 13, 1993Date of Patent: September 13, 1994Assignee: BASF AktiengesellschaftInventors: Reinhold Krallmann, Regina Laws, Wolfgang Schrott
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Patent number: 5207804Abstract: Coupling products of diazotized o- or p-toluidines to 3-hydroxy-2-naphthoic acid p-anisidide do not produce optimum dyeing properties in HT exhaustion dyeing of wound packages of synthetic fiber materials. Filtration occurs time after time under critical conditions, since these single dyestuffs and also mixtures of these with one another build up too slowly in the heating-up phase.A bright red multi-component system of the same color shade, which exhibits a significantly improved exhaustion capacity by synergism during HT dyeing of wound packages and no longer presents difficulties in respect of filtration, can be obtained by mixing monoazo dyestuffs which are obtained by coupling diazotized aniline and p-toluidine in each case to 3-hydroxy-2-naphthoic acid p-anisidide.Type: GrantFiled: April 20, 1992Date of Patent: May 4, 1993Assignee: Hoechst AktiengesellschaftInventors: Reinhard Kuhn, Margareta Boos, Rudolf Binder, Klaus Hofmann
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Patent number: 5152801Abstract: 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: GrantFiled: December 5, 1990Date of Patent: October 6, 1992Assignee: Ciba-Geigy CorporationInventors: Hans Altermatt, Alois Puntener, Peter Moser, Ernst Tempel
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Patent number: 4875903Abstract: Compounds of the formula ##STR1## wherein each R.sub.1 is independently hydrogen, C.sub.1-4 alkyl or C.sub.1-4 alkyl monosubstituted by hydroxy, halo, cyano or C.sub.1-4 alkoxy,each of X.sub.1 and X.sub.3 is independently halo, hydroxy, C.sub.1-4 alkyl, C.sub.1-4 alkoxy, phenyl, phenoxy, amino or an aliphatic, cycloaliphatic, aromatic or heterocyclic amino group,each of X.sub.2 and X.sub.4 is independently an aliphatic, cycloaliphatic, aromatic or heterocyclic amino group containing at least one protonatable nitrogen atom or quaternary ammonium group,m is 0 or 1, andeach of n.sub.1 and n.sub.2 is independently 0 or 1, with the proviso that n.sub.1 +n.sub.2 is 1 or 2,wherein each halo is independently fluoro, chloro or bromo, with the provisos that (1) the total number of basic and cationic groups present as X.sub.1 -X.sub.Type: GrantFiled: June 5, 1987Date of Patent: October 24, 1989Assignee: Sandoz Ltd.Inventor: Reinhard Pedrazzi
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Patent number: 4801303Abstract: Polyester-cotton blend textile substrates are dyed with a disperse dye and then with a sulfur dye from the same dyebath which is maintained at a temperature no higher than 105.degree. C. when the sulfur dye is present therein and which preferably contains glucose as the reducing agent for the sulfur dye.Type: GrantFiled: June 1, 1987Date of Patent: January 31, 1989Assignee: Sandoz Ltd.Inventors: Mark S. Carlough, Laszlo A. Meszaros
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Patent number: 4401692Abstract: Transfer-printing supports, which are impregnated or printed with a formulation containing a mixture of a blue disperse dyestuff which sublimes readily and has the formula ##STR1## in which X is hydrogen or halogen, R, R.sup.1 and R.sup.2 denote alkyl with 1 to 4 carbon atoms and R.sup.3 denotes hydrogen or alkyl with 1 to 4 carbon atoms, and yellow to red disperse dyestuffs which sublime readily, give deep and fast black dyeings on polyester materials and polyester mixed materials by the heat transfer-printing process.Type: GrantFiled: July 31, 1981Date of Patent: August 30, 1983Assignee: Hoechst AktiengesellschaftInventors: Rudolf Schickfluss, Manfred Schneider, Claus Schuster
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Patent number: 4314811Abstract: According to two-phase processes multi-color effects are obtained on cellulosic materials, namely conversion effects with reactive and vat dyestuffs on the one hand and discharge resists prints with reactive dyestuffs and, optionally, vat dyestuffs on the other hand, by printing or padding the reactive dyestuff or a mixture of reactive and vat dyestuffs in a weakly acidic medium onto the material, overprinting this material with a neutral paste containing formamidine sulfinic acid as discharging agent and, if desired, a vat dyestuff, drying the print, contacting the material with an aqueous strongly alkaline liquor, steaming it and finishing the article in known manner, depending on the choice of dyestuffs.Type: GrantFiled: July 1, 1980Date of Patent: February 9, 1982Assignee: Hoechst AktiengesellschaftInventors: Erich Feess, Friedrich Reinhardt
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Patent number: 4314812Abstract: According to two-phase processes multi-color effects are obtained on cellulosic materials, namely conversion effects with reactive and vat dyestuffs on the one hand and discharge resist prints with reactive dyestuffs and, optionally, vat dyestuffs on the other hand, by printing or padding the reactive dyestuff or a mixture of reactive and vat dyestuffs in a weakly acidic medium onto the material, overprinting this material with a neutral paste containing a stable discharging agent of the sulfinic acid series and, if desired, a vat dyestuff, drying the print, contacting the material with an aqueous strongly alkaline liquor, steaming it and finishing the article in known manner, depending on the choice of dyestuffs.Type: GrantFiled: July 1, 1980Date of Patent: February 9, 1982Assignee: Hoechst AktiengesellschaftInventor: Erich Feess
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Patent number: 4229171Abstract: A fiber-reactive dyestuff mixture is obtained by reacting a phthalocyanine sulfochloride with an aromatic amine having a fiber-reactive group selected from vinyl sulfonyl, .beta.-sulfatoethyl-sulfonyl and .beta.-hydroxyethyl-sulfonyl groups, diazotizing unreacted amine in the resulting mixture and reacting the diazo compound in the mixture with a conventional coupling component to form a mixture of phthalocyanine and azo dyestuffs.Type: GrantFiled: October 5, 1978Date of Patent: October 21, 1980Assignee: Hoechst AktiengesellschaftInventor: Fritz Meininger
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Patent number: 4213900Abstract: Easily water-dispersible pulverulent formulations of disperse dyes are prepared by spray-drying a dye solution which comprises(a) one or more disperse dyes,(b) one or more water-soluble anionic dispersants,(c) from 0 to 20% by weight, based on (a+b+c+d), of other surfactants and(d) from 0 to 20% by weight, based on (a+b+c+d) of agents which serve as protective colloids (the proportion of (c+d) being at most 20% by weight).Suitable solvents (e) are formic acid, formamide, N-methylformamide, butyrolactone, ethylene glycol and propylene glycol, which may in addition contain up to 100% by weight, based on (e), of N,N-dimethylformamide or acetic acid or mixtures of these. The formulations obtained by the above process contain the dye in very fine dispersion.Type: GrantFiled: July 17, 1978Date of Patent: July 22, 1980Assignee: BASF AktiengesellschaftInventors: Ewald Daubach, Dieter Horn, Erwin Hahn, Herbert Uhrig