Reactive Dye Composition, Process, Or Product Patents (Class 8/543)
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Patent number: 5466265Abstract: Improved dyeings or prints on cellulose, regenerated cellulose and/or mixtures of cellulose with natural or synthetic fiber materials using one or more reactive and/or direct dyes are obtained in the presence of a lithium compound.Type: GrantFiled: May 13, 1994Date of Patent: November 14, 1995Assignee: Bayer AktiengesellschaftInventors: Martin Riegels, Joachim Grutze
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Patent number: 5445653Abstract: A method of dyeing nylon, particularly cationic dyeable Type 6 and 66 nylon and light dyeable Type 66 nylon, so that the dyed fiber will resist taking on further dye and will have a high degree of wash and bleed fastness when the dyed fiber is subjected to a further high temperature aqueous dye bath. The method includes providing a bifunctional dye solution having a very low pH, i.e. no higher than 1.5. The dye is applied to the fiber with a degree of wet pick-up exceeding 100% by weight of the fiber. The fiber is then steamed, washed, and dried, and contacted by an alkaline solution, such as a trisodium phosphate solution. Thereafter, the fiber is autoclaved. Such a dyed nylon fiber can be combined with an undyed nylon fiber to produce a textile product.Type: GrantFiled: March 28, 1994Date of Patent: August 29, 1995Assignee: Rossville Yarn, Inc.Inventors: Robert R. Hixson, Randy J. Rawlston, Hobert C. Sweatman
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Patent number: 5437688Abstract: A granular reactive dye composition comprising a water-soluble reactive dye and at least one granulating auxiliary agent selected from the group consisting of compounds of the following formula (3), ##STR1## wherein R is --C.sub.s H.sub.2s+1, in which s is an integer of 5 to 20 and wherein the content of the granulating auxiliary agent is 5 parts by weight or less per 100 parts by weight of the reactive dye.Type: GrantFiled: December 14, 1993Date of Patent: August 1, 1995Assignee: Sumitomo Chemical Company, LimitedInventors: Noriaki Yamauchi, Nobuaki Kawamura, Tatuo Miura, Shuhei Hashizume, Isao Nakamae, Kazumi Yoshigoe, Hiroyuki Suzuki, Iwao Minami
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Patent number: 5411557Abstract: A printing process wherein the surface of a fabric is subjected to lithography or relief printing and subsequently to aftertreatment including steaming, soaping and rinsing and which is characterized in that the process employs an ink comprising:(a) a coloring agent comprising a dye prepared by rendering a fiber-reactive water soluble dye insoluble and/or oleophilic, and(b) a vehicle comprising(I) a lithographic oily varnish and/or(II) a glycol varnish and/or an amino alcohol varnish containing at least one of hydrotroping agent, neutral sodium salt, surfactant, basic material, water and alcohol,(c) the coloring agent (a) and the vehicle (b) being mixed or kneaded together.Type: GrantFiled: November 3, 1993Date of Patent: May 2, 1995Assignee: King Printing Co., Ltd.Inventor: Yukio Terada
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Patent number: 5403361Abstract: A process for dyeing textile fiber materials with water-soluble dyestuffs, in particular anionic dyestuffs, and of these in particular those having a fiber-reactive group, in which the dyeing is carried out using low-electrolyte or entirely electrolyte-free and/or low-alkali or entirely alkali-free dye liquors or printing pastes and a fiber material which has been modified with a silane compound containing amino groups is used as the textile material. The fiber material is modified by applying the silane compound containing amino groups to the material in aqueous solution and subjecting the impregnated material to a heat treatment. Novel silane compounds which contain a secondary amino group and can likewise be employed for the purpose mentioned are furthermore described.Type: GrantFiled: August 12, 1993Date of Patent: April 4, 1995Assignee: Hoechst AGInventors: Andreas Schrell, Werner H. Russ, Thomas Riehm, Tilo Vaahs
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Patent number: 5403358Abstract: A color enhancing agent comprising water, urea and a quaternary ammonium compound of the Formula (1): ##STR1## wherein: R.sup.1, R.sup.2 and R.sup.3 are each independently selected from H and C.sub.1-20 -optionally substituted alkyl or alkylene;R.sup.4 is C.sub.1-20 -optionally substituted alkyl or alkylene; andX.sup.- is an anion,provided that the total number of carbon atoms in the compound of Formula (1) is more than 30. The color enhancing agent can be used in pre-treatment compositions for textile materials prior to ink jet printing with a reactive dye and improves color yields.Type: GrantFiled: September 21, 1992Date of Patent: April 4, 1995Assignee: Imperial Chemical Industries PLCInventors: Sarah O. Aston, John R. Provost
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Patent number: 5401277Abstract: Reactive dyestuffs of the formula ##STR1## in which X is ##STR2## and Z is a heterocyclic reactive group and the remaining groups have the meaning given in the description, are highly suitable for the dyeing and printing of hydroxyl- or amido-containing materials.Type: GrantFiled: May 17, 1994Date of Patent: March 28, 1995Assignee: Bayer AktiengesellschaftInventors: Wolfram Reddig, Karl-Josef Herd
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Patent number: 5393306Abstract: Dye mixtures which comprise a reactive dye of the formula ##STR1## together with at least one reactive dye of the formulae ##STR2## in which D, D', R.sub.1, R.sub.2, R.sub.3, R.sub.3 ' and B are as defined in claim 1, are particularly suitable for dyeing or printing cellulosic fibre materials or naturally occurring or synthetic polyamide fibre materials with a high tinctoffal yield, and produce dyeings and prints having good fastness properties.Type: GrantFiled: July 19, 1993Date of Patent: February 28, 1995Assignee: Ciba-Geigy CorporationInventors: Athanassios Tzikas, Claudia Carisch
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Patent number: 5389108Abstract: The invention relates to a process for fixing dyes on organic material, which comprises fixing dyes containing at least one polymerizable double bond or at least one polymerizable ring system, excluding water-soluble dyes which carry acrylamido or methacrylamido groups, together with at least one substantially colorless compound which contains at least one polymerizable double bond, by subjecting said organic material, which has a residual moisture content of less than 20%, based on the treated material, to ionizing radiation.Type: GrantFiled: July 14, 1992Date of Patent: February 14, 1995Assignee: Ciba-Geigy CorporationInventors: Katharina Fritzsche, Martin Trottmann
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Patent number: 5382262Abstract: A liquid alkali composition fiber reactive dyeing of cotton and cotton blended fabrics. The liquid alkali is a solution of an alkali metal hydroxide and its carbonate formed by reaction of liquid CO.sub.2 with the alkali metal hydroxide solution. The resulting supersaturated solution has a high enough Total Alkalinity to achieve reaction between the dye and fiber but is sufficiently buffered to achieve this reaction slowly so that the fiber reactive dyes fix in a level, uniform fashion, Preferably the composition is a mixture of potassium hydroxide, potassium carbonate, potassium citrate, and potassium polyacrylate. The citrate and polyacrylate act as dispersants in the dyeing process and also act as crystallization inhibitors in solution. The use of the carbonate compounds of the present invention in place of conventional silicates or phosphorus prevents the discharge of untreatable toxic wastewater into natural waterways.Type: GrantFiled: April 27, 1992Date of Patent: January 17, 1995Assignee: Burlington Chemical Co.Inventor: Samuel B. Moore
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Patent number: 5378242Abstract: A liquid alkali for use in soaping off of cotton and cotton blended fabrics. The liquid alkali is a water-based solution of an alkali metal hydroxide and an alkali metal silicate. Preferably the composition is an aqueous mixture of potassium hydroxide and sodium silicate. In the most preferred embodiment the composition includes 35 wt % potassium hydroxide at a 45 wt % concentration, 25 wt % sodium silicate at 50.degree. Baume, and the balance water. In an alternative embodiment, up to 5 wt % of a borate is added.Type: GrantFiled: December 22, 1992Date of Patent: January 3, 1995Assignee: Apollo Chemical CompanyInventors: Nick J. Christie, Samuel G. Jones
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Patent number: 5378245Abstract: The invention relates to a process for dyeing cellulose fibres such as cotton fibres, comprising successively the steps of (a) bleaching the cellulose fibres with an alkaline bath containing aqueous hydrogen peroxide; (b) neutralizing the residual hydrogen peroxide with a reducing agent; and (c) dyeing the cellulose fibres with a reactive dye sensitive to said reducing agent, wherein, after stage (b) and at the latest at the beginning stage (c), any residual agent is neutralized by a quantity of an alkali or alkaline-earth metal halogenite sufficient to neutralize it, whereby it is possible not to perform any intermediate rinsing between stages (a) and (c).Type: GrantFiled: July 29, 1993Date of Patent: January 3, 1995Assignee: Manufacture de Produits Chimiques ProtexInventor: Jean Balland
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Patent number: 5372611Abstract: A liquid alkali composition for use in fiber reactive dyeing of cotton and cotton blended fabrics or the like. The liquid alkali is a water-based solution of an alkali metal hydroxide and an alkali metal silicate. Preferably the composition is an aqueous mixture of potassium hydroxide and sodium silicate. In the most preferred embodiment the composition includes 35 wt % potassium hydroxide at a 45 wt % concentration, 25 wt % sodium silicate at 50.degree. Baume, 5 wt % of a borate, and the balance water. The resulting solution has a high enough pH to achieve reaction between the dye and fiber but is sufficiently buffered to achieve this reaction slowly so that the fiber reactive dyes fix in a level, uniform fashion.Type: GrantFiled: September 30, 1992Date of Patent: December 13, 1994Assignee: Apollo Chemical CorporationInventors: Nick J. Christie, Samuel G. Jones
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Patent number: 5356444Abstract: A phthalocyanine reactive dyestuff mixture having an improved dyeing levelness and combination properties comprises at least one phthalocyanine vinylsulphonyl reactive dyestuff 1, at least one phthalocyanine fluorochloropyrimidinyl reactive dyestuff 2 and/or a phthalocyanine monochlorotriazinyl reactive dyestuff 3.Type: GrantFiled: October 26, 1993Date of Patent: October 18, 1994Assignee: Bayer AktiengesellschaftInventors: Max Schwarz, Joachim Wolff, Dietrich Hildebrand, Joachim Grutze, Manfred Hoppe, Josef-Walter Stawitz, Rolf Schulz
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Patent number: 5356441Abstract: A reactive dye composition containing a reactive dye and a salt of polyoxyethylene substituted-phenyl ether ester produces excellent solubility in water and in an aqueous alkali solution and can be used to dye a fiber material uniformly.Type: GrantFiled: September 9, 1993Date of Patent: October 18, 1994Assignee: Sumitomo Chemical Company, LimitedInventors: Takemi Tokieda, Naoki Harada, Shuhei Hashizume, Koiti Ishii, Nobuaki Kawamura, Tetsuya Miyamoto, Hiroyuki Suzuki, Shigeru Kawabata
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Patent number: 5356440Abstract: The invention relates to a process for the dyeing of synthetic polyamide fibre materials, which comprises dyeing these fibre materials with a reactive dye of the formulaHO.sub.3 S--Fa--X--SO.sub.2 CH.sub.2 CH.sub.2 OSO.sub.3 H).sub.m(1),in which Fa is a dye radical, X is a direct bond or a radical of the formula --CONHCH.sub.2 CH.sub.2 -- and m is the number 1 or 2, the dye of the formula (1) containing only one sulfo group, from an aqueous liquor at a pH of 5 to 9 and, to set the dyeing temperature, raising the temperature from 80.degree. C. to at least 95.degree. C. over a period of at least 20 minutes. The process according to the invention produces level dyeings on synthetic polyamide fibre materials.Type: GrantFiled: July 22, 1993Date of Patent: October 18, 1994Assignee: Ciba-Geigy CorporationInventors: Pierre Galafassi, Jean-Marie Adam
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Patent number: 5330541Abstract: The invention relates to a process for increasing the dyeability of textile fibers and fabrics without the need to use a salt in the dyebath. The dyeing is performed on fibers or fabrics which have been treated with potassium hydroxide and an epoxy ammonium salt of the formula: ##STR1## wherein R, R', R", and R'" are alkyl radicals having 1 to 8 carbon atoms, and X.sup.- is an anionic group selected from the group consisting of sulfate, sulfonate and halide.Type: GrantFiled: December 15, 1992Date of Patent: July 19, 1994Assignee: American Emulsions, Co.Inventors: David M. Hall, Tony M. Leonard, Charles D. Cofield, Hugh W. Barrow
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Patent number: 5324329Abstract: A reactive dye composition containing at least one dye of the formula (I) in the free acid form: ##STR1## wherein m is zero or 1; R.sub.1 is hydrogen, lower alkyl or lower alkoxy; R.sub.2 and R.sub.3 are independently hydrogen or substituted or unsubstituted lower alkyl; A is substituted or unsubstituted phenylene or naphthylene; X.sub.1 is halogen, --N(R.sub.4)R.sub.5 or --OR.sub.6 in which R.sub.4, R.sub.5 and R.sub.6 are independently hydrogen or substituted or unsubstituted alkyl, phenyl or naphthyl; and Y.sub.1 is the group --SO.sub.2 CH.dbd.CH.sub.2 or the group --SO.sub.2 CH.sub.2 CH.sub.2 Z.sub.1 in which Z.sub.1 is a group splittable by the action of an alkali, and at least one dye of the formula (II) in the free acid form: ##STR2## wherein n is zero, 1 or 2; one of W.sub.1 and W.sub.2 is hydrogen and the other is sulfo; R.sub.7 is hydrogen or substituted or unsubstituted lower alkyl; B is substituted or unsubstituted phenylene or naphthylene; X.sub.2 is --N(R.sub.8)R.sub.9, --OR.sub.10 in which R.Type: GrantFiled: June 16, 1993Date of Patent: June 28, 1994Assignee: Sumitomo Chemical Company, LimitedInventors: Takeshi Washimi, Naoki Harada, Shuhei Hashizume, Takashi Omura
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Patent number: 5320648Abstract: The invention relates to a process for dyeing or printing hydroxyl group containing fibre materials, which comprises using at least one yellow or orange dyeing dye of formula ##STR1## wherein the substituents are as defined in claim 1, together with at least one blue dyeing dye and/or at least one red dyeing dye. Level dyeings and prints with good allround fastness properties are obtained by the process of the invention.Type: GrantFiled: December 16, 1992Date of Patent: June 14, 1994Assignee: Ciba-Geigy CorporationInventors: David H. McMullan, Rudolf Schaulin, Urs Lauk
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Patent number: 5310906Abstract: The novel triphendioxazine dyestuffs of the formula ##STR1## in which the substituents R, R', T.sub.1, T.sub.2, X, Y and n have the meanings given in the description are highly suitable for the dyeing and printing of cellulose-containing or amido-containing material.Type: GrantFiled: April 26, 1993Date of Patent: May 10, 1994Assignee: Bayer AktiengesellschaftInventor: Horst Jager
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Patent number: 5298033Abstract: An ultraviolet radiation absorbing agent for bonding to an ocular lens. The agent has the formulaA--NH--Bwherein A is an ultraviolet absorbing compound and B is a specific reactive group or a moiety containing reactive group.Type: GrantFiled: January 12, 1993Date of Patent: March 29, 1994Assignee: Ciba-Geigy CorporationInventors: William M. Hung, Kai C. Su
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Patent number: 5294231Abstract: A process for dyeing a mixed fibre substrate with at least one disperse dye and at least one metal complex dye selected from direct dyes and reactive dyes characterized in that dyeing is carried out in the presence of a compound of formula I ##STR1## in which X is --S--, --O--, or --NH--;R.sub.1 is hydrogen, --OH or C.sub.1-4 alkyl; andR.sub.2 is hydrogen, NH.sub.4 or an alkali metal (such as Na or K).Type: GrantFiled: December 10, 1992Date of Patent: March 15, 1994Assignee: Sandoz Ltd.Inventor: Francis Palacin
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Patent number: 5273551Abstract: The invention relates to a process for fixing reactive dyes on cellulosic textile material and to apparatus for carrying out said process.The process comprises wetting the dried fibre material, which has been printed with reactive dyes, with water, covering the printed material with water-impermeable material and subjecting it to a heat treatment. The fixation can be carried out with advantage using minor amounts of urea, but preferably without urea, to give prints of good quality.Type: GrantFiled: July 24, 1992Date of Patent: December 28, 1993Assignee: Ciba-Geigy CorporationInventors: Wolfgang Brehme, Rolf Hopf
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Patent number: 5269816Abstract: A process for coloring textile materials which includes applying thereto a water-soluble reactive dye containing a chlorotriazine group and a diaminobenzylamine linker group.Type: GrantFiled: March 31, 1992Date of Patent: December 14, 1993Assignee: Imperial Chemical Industries PLCInventor: John A. Taylor
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Patent number: 5268475Abstract: The compounds of formula (1) are suitable for use as direct dyes for dyeing and printing a wide range of materials, especially cellulosic fibers, to give dyeings and prints of good all-round fastness properties: ##STR1## wherein R and R.sub.1 are each independently of the other hydrogen or unsubstituted or substituted alkyl, cycloalkyl, aryl or aralkyl,X is a direct bond, --O--, --S-- or --N(R.sub.4)--, wherein R.sub.4 is hydrogen or unsubstituted or substituted alkyl, cycloalkyl, aryl or aralkyl, X.sub.1 is --O--, --S-- or --N(R.sub.4)--, wherein R.sub.4 is hydrogen or unsubstituted or substituted alkyl, cycloalkyl, aryl or aralkyl,Y and Y.sub.1 are each independently of the other C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy, halogen, sulfo, carboxy, carbamoyl, N-mono- or N,N-di-C.sub.1 -C.sub.4 alkylcarbamoyl, N-phenyl- or N,N-diphenylcarbamoyl, sulfamoyl, N-mono- or N,N-di-C.sub.1 -C.sub.4 alkylsulfamoyl or N-phenyl- or N,N-diphenylsulfamoyl, Z and Z.sub.Type: GrantFiled: October 28, 1991Date of Patent: December 7, 1993Assignee: Ciba-Geigy CorporationInventor: Urs Lauk
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Patent number: 5259850Abstract: A granular type reactive dye composition containing a reactive dye, an inorganic salt and water, the water content being from 4.5 through 15% by weight and the inorganic salt content being 20% by weight or less, both based on the weight of the composition, which is excellent in storage stability, compatibility with water and hot water, and reproducibility, when used for dyeing or printing cellulose fibers.Type: GrantFiled: August 16, 1991Date of Patent: November 9, 1993Assignee: Sumitomo Chemical Company, LimitedInventors: Naoki Harada, Noriaki Yamauchi, Syuhei Hashizume, Yutaka Kayane, Kazumi Yoshigoe, Isao Nakamae
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Patent number: 5256161Abstract: An improved aqueous dyestuff preparation which is suitable for the dyeing or printing of substrates contains a water-soluble lithium compound and an alkali, in particular sodium hydroxide.Type: GrantFiled: April 28, 1992Date of Patent: October 26, 1993Assignee: Bayer AktiengesellschaftInventors: Joachim Grutze, Friedhelm Buse, Johannes Haas, Manfred Hobohm
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Patent number: 5254136Abstract: Provided is a fiber reactive dye composition which can dye or print cellulose based fiber materials or materials containing the fiber materials uniformly with good build-up property and reproducibility and give dyed or printed products excellent in various fastness properties.A fiber reactive dye composition which comprises at least five reactive dyes selected from the groups of reactive dyes represented by the following formulas (I) to (VII) respectively in the form of free acid: ##STR1## wherein R.sub.1 and R.sub.2 are each hydrogen, alkyl, ureido or the like, R.sub.5 and R.sub.6 are each hydrogen, sulfo or the like, R.sub.3, R.sub.4, R.sub.7 to R.sub.13 and R.sub.15 to R.sub.18 are each hydrogen, alkyl or the like, R.sub.14 is --O-- or ##STR2## A, B, D, E, G, J and L are each phenylene or the like, X.sub.1 to X.sub.6 are each halogen, Y.sub.1 to Y.sub.7 are each --SO.sub.2 CH.dbd.CH.sub.2 or --SO.sub.2 C.sub.2 H.sub.4 Z, Z being a group capable of being split off by the action of an alkali, m.sub.1 to m.Type: GrantFiled: July 30, 1992Date of Patent: October 19, 1993Assignee: Sumitomo Chemical Company, LimitedInventors: Miwako Fujii, Naoki Harada, Shuhei Hashizume
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Patent number: 5246467Abstract: It is necessary to remove unbound reactive dyes from the surfaces of textile substrates treated with dyes of this class; this is to ensure the dyed substrate is fast. In the invention dye is removed from a wash medium by contracting the medium with an absorbent, preferably a hydrotalcite-like material, which removes suspended dye. This removal allows re-use of the wash medium or its disposal.Type: GrantFiled: March 18, 1992Date of Patent: September 21, 1993Assignee: Unilever Patent Holdings B.V.Inventors: Keith R. F. Cockett, Martin Concannon, Maurice Webb
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Patent number: 5242467Abstract: A reactive dye mixture which comprises, as dye components, from 10 to 57% by weight of C.I. Reactive Orange 16 and from 90 to 43% by weight of C.I. Reactive Orange 7.Type: GrantFiled: August 28, 1992Date of Patent: September 7, 1993Assignee: Hoechst Mitsubishi Kasei Co., Ltd.Inventors: Yuji Yamada, Mitsuhiro Suzuki, Kensuke Suzuki
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Patent number: 5242466Abstract: A fabric is dyed with a reactive dye in the presence of an alkali donor, added to the dyebath. The alkali donor is a liquid composition comprising potassium silicate and potassium hydroxide. A composition suitable for use as such an alkali donor comprises, by weight of the total weight of the composition, 20-75% potassium silicate, 10-35% of solid potassium hydroxide, and up to 20% sequestrant, the balance comprising water.Type: GrantFiled: March 12, 1992Date of Patent: September 7, 1993Assignee: Unilever Patent Holdings B.V.Inventors: Theodore D. Aseervatham, Marc Ballman, James Hayes
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Patent number: 5240465Abstract: A process for applying a reactive dye to a cellulosic substrate comprising:(a) adding one or more dyeing assistants selected from the condensation product of sulphonated diphenyl ethers, condensation product of sulphonated ditolyl ethers, condensation products of polydiphenylsulphones with formaldehyde and condensation products of polyditolyl sulphones with formaldehyde (and salts thereof) into an aqueous liquor, optionally together with a salt (hereinafter defined as Process Step a);(b) introducing the substrate into the dyebath and adding one or more reactive dyes, (hereinafter defined as Process Step b) ; and(c) fixing the dyestuff onto the substrate (hereinafter defined as Process Step c).Type: GrantFiled: December 3, 1992Date of Patent: August 31, 1993Assignee: Sandoz Ltd.Inventor: Francis Palacin
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Patent number: 5238465Abstract: The invention relates to a process for fixing dyes which contain at least one polymerisable double bond and/or at least one polymerisable ring system on moist fibre material using ionising radiation together with at least one colorless compound which contains at least one polymerisable double bond, but not N-C.sub.1 -C.sub.4 alkylolacrylamide or N,N-di(C.sub.1 -C.sub.4 alkylol)acrylamide.Type: GrantFiled: July 9, 1991Date of Patent: August 24, 1993Assignee: Ciba-Geigy CorporationInventor: Katharina Fritzsche
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Patent number: 5234464Abstract: A method of dyeing textile webs with reactive dyestuffs in which the dyestuff and alkali solutions are applied successively to the web separately and directly following one another in predetermined proportions to the dry weight of the web in a single machine pass.Type: GrantFiled: September 12, 1990Date of Patent: August 10, 1993Assignee: Johannes ZimmerInventors: Johannes Zimmer, Hellmut Woll
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Patent number: 5232462Abstract: The invention relates to dye mixtures which contain dyes of the formulae ##STR1## and to dyes of the formula ##STR2## in which A.sub.1, A.sub.2, A.sub.3, B, B.sub.1, R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, Z.sub.1, Z.sub.2, X.sub.1, X.sub.2 and X.sub.3 are as defined in claim 1. The dyes and dye mixtures are distinguished by generally good properties and produce dyeings and prints having good wet and light fastness properties.Type: GrantFiled: September 20, 1991Date of Patent: August 3, 1993Assignee: Ciba-Geigy CorporationInventor: Athanassios Tzikas
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Patent number: 5207799Abstract: A process is described for fibre- and surface-level dyeing of wool and blends thereof with other fibers using a compound of formula (1) ##STR1## in which n is 0 or 1, and if n is 1, A is a radical of the formula ##STR2## and B is an alkylene or alkenylene group or a direct bond, or if n is zero, A is a compound of the formula ##STR3## Fibre- and surface-level dyeings, in particular in light to medium color shades are obtained by the dyeing process according to the invention. The dyeing aid according to this invention can be used to substitute formaldehyde containing wool dyeing aids.Type: GrantFiled: August 27, 1991Date of Patent: May 4, 1993Assignee: Ciba-Geigy CorporationInventors: Gerhard Back, Klaus Hannemann, Josef Koller
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Patent number: 5207800Abstract: Low toxicity, biodegradable salt substitutes for use in dyeing of cotton and cotton blended fabrics. The salt substitutes are solubilized alkaline earth metal-organic complex compositions suitable to promote satisfactory dyeing. Preferably the composition is a mixture of magnesium acetate, magnesium citrate, and magnesium polyacrylate. After dyeing, a shift to alkaline pH in the wastewater treatment process allows for precipitation of the metal and the production of a biodegradable organic anion. The use of the salt compounds of the present invention in place of conventional sodium chloride or sulfate salts prevents the discharge of untreatable toxic wastewater into natural waterways.Type: GrantFiled: October 7, 1991Date of Patent: May 4, 1993Assignee: Burlington Chemical Co., Inc.Inventor: Samuel B. Moore
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Patent number: 5207801Abstract: The invention relates to reactive dye mixtures comprising the reactive dyes of the formulae ##STR1## in which X.sub.1, X.sub.2 and X.sub.3 are reactive radicals bonded via a diaminoalkylene bridge and the other substituents are as defined in claim 1.The reactive dye mixtures are suitable for dyeing and printing cellulosic fibre materials and give wet- and light-fast dyeings in luminous blue shades.Type: GrantFiled: November 5, 1991Date of Patent: May 4, 1993Assignee: Ciba-Geigy CorporationInventors: Peter Aeschlimann, Paul Herzig, Athanassios Tzikas
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Patent number: 5196030Abstract: In a process for transfer pattern printing of a moist textile web consisting wholly or predominantly of natural fibers, in particular cotton, and/or artificial fibers on the basis of cellulose, the pattern carrier web is a web of paper or a paper-like material which carries a pre-printed pattern of a water soluble or dispersable dye. After wetting of the textile web to a carefully controlled moisture, the textile web is joined with the pattern carrier web and the joined webs are compressed at a suitable pressure so that the pattern can be transferred without using heat. The advantage is that it will be possible to avoid both heating and use of organic solvents. It is also possible to transfer a pattern to a colored textile web since the textile web may be wetted before hand with an aqueous dye solution or dispersion instead of undyed liquid.Type: GrantFiled: April 30, 1990Date of Patent: March 23, 1993Assignees: Dansk Transfertryk A/S, Billerud ABInventors: Inga S. Akerblom, Claes-Goran Thoren, Knud V. Rasmussen, Jorgen Pedersen
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Patent number: 5196032Abstract: 1. A process comprisinga) a two liquor process for treating a cellulosic substrate with alkali and applying a dye to the substrate characterized by pad treating the substrate with alkali and dyeing by pad dyeing or printing with a reactive dyestuff without an intermediate washing step; orb) a one liquor process for treating a cellulosic substrate with alkali and a dye characterized in that the substrate is pad treated with alkali and reactive dye.Type: GrantFiled: May 9, 1991Date of Patent: March 23, 1993Assignee: Sandoz Ltd.Inventor: Christian Oschatz
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Patent number: 5196033Abstract: A water-soluble reactive dye of the formula:D.sup.1 --Z.sup.1 --NR.sup.1 --T--NR.sup.2 --Z.sup.2 --D.sup.2 (1)whereineach of D.sup.1 and D.sup.2, independently, represents the radical of a water-soluble chromophoric compound,each of Z.sup.1 and Z.sup.2, independently, represents a triazine or pyrimidine residue carrying an atom or group imparting fibre-reactivity to the dye,R.sup.1 represents an optionally substituted alkyl radical,R.sup.2 represents hydrogen or an optionally substituted alkyl radical, andT represents a 1,3- or 1,4-phenylene radical which may carry one or more substitutents selected from halogen, alkyl, alkoxy, acylamino, nitro and carboxy.Type: GrantFiled: July 9, 1991Date of Patent: March 23, 1993Assignee: Imperial Chemical Industries plcInventor: John A. Taylor
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Patent number: 5196031Abstract: A process for dyeing a mixed fibrous substrate comprising applying to the substrate,a) at least one disperse dye,b) at least one copper - containing direct or reactive dye, preferably in a sufficient amount to produce a dyeing greater than a 1/1 standard depth;c) a complexing agent having a stability constant (K-value) with the metal of the direct or reactive dye of from 6 to 17 inclusive;d) a lignin sulphonate dispersing agent; ande) an oxidizing agent capable of converting copper (I) to copper (II) at a temperature of 100.degree.-130.degree. C. at a pH of 5-7 in the process for dyeing the mixed substrate.Type: GrantFiled: August 27, 1991Date of Patent: March 23, 1993Assignee: Sandoz Ltd.Inventor: John A. Hook
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Patent number: 5189162Abstract: The specification describes cellulose reactive unsymmetrical triphenodiaxazine dyes of the Formula (1): ##STR1## wherein each of T.sup.1 and T.sup.2, independently, represents H, Cl, Br, F, SO.sub.3 H or an optionally substituted alkyl or aryl radical;each of A.sup.1 and A.sup.2 independently represents alkyl, alkoxy, Cl, Br, COOH, SO.sub.3 H or optionally substituted sulphamoyl;each n independently has a value of 0, 1 or 2;each m independently has a value of 1 or 2;R.sup.1 represents H or an optionally substituted hydrocarbon radical;Q represents O or S;x has a value of 0 or 1;B represents an optionally substituted divalent hydrocarbon radical;each of R.sup.2 and R.sup.3, independently, represents H or an optionally substituted hydrocarbon radical or R.sup.2 and R.sup.3 are joined together to form, with B and the two N atoms, a piperazine ring;y has a value of 0 or 1, andZ represents H, or an optionally substituted hydrocarbon radical or a fibre-reactive group;provided that (1) at least one of R.sup.Type: GrantFiled: November 1, 1990Date of Patent: February 23, 1993Assignee: Imperial Chemical Industries PLCInventor: Peter Smith
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Patent number: 5176718Abstract: Preparations of water-soluble reactive dyestuffs containing pyridine derivatives of the formula ##STR1## or salts of, in which the substituents have the meanings given in the description, are highly suitable for the dyeing of cellulose materials.Type: GrantFiled: June 12, 1991Date of Patent: January 5, 1993Assignee: Bayer AktiengesellschaftInventors: Martin Michna, Manfred Hoppe, Karl-Josef Herd, Hermann Henk, Frank-Michael Stohr
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Patent number: 5167668Abstract: In an existing isothermal dyeing process, the alkali required for dye fixation is added to the neutral dyebath under linear or progressive program control. In this process, the amount of alkali added per unit time is small at the beginning and is increased progressively and in accordance with a program. This process passes through a certain (non-controlable) initial phase until the start of dye fixation on the cellulose. As a consequence the rate of fixation passes through a maximum before gradually decreasing when the final state of the dyeing is reached. To shorten the initial phase (waiting time) of dye fixation and to slow down dye fixation during the steepest part, it has proved advantageous according to the invention to add the alkali in accordance with a parabolic program.Type: GrantFiled: November 26, 1990Date of Patent: December 1, 1992Assignee: Hoechst AktiengesellschaftInventors: Manfred Hahnke, Pablo Canora
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Patent number: 5153317Abstract: A composition and its method of use are disclosed for controlling rheology of an aqueous dye, which composition comprises 1-30 parts of a gum selected from the group consisting of xanthan gum, rhamsan gum, welan gum and mixtures thereof and 70-99 parts of a water soluble polysaccharide having aliginate equivalent rheology, preferably an alginate. Also disclosed is a color imparting composition for fabric or carpet printing which comprises 99-99% of an aqueous dye component and 1-10% of the rheology control component. The polysaccharide is preferably an alginate, starch, cellulosic polymer or guar gum or mixtures thereof.Type: GrantFiled: November 15, 1991Date of Patent: October 6, 1992Assignee: Merck & Co., Inc.Inventors: Theresa M. Ortega, Philip E. Winston, Jr., Kenneth Clare
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Patent number: 5151106Abstract: A hydrophilic polymer, e.g., provided as a contact lens, is tinted by a method which incorporates a reactive dye into the polymer during formation of the latter. Following physical entrainment of the reactive dye in the polymer, the polymer is contacted with an aqueous solution of a base which catalyzes the reaction of the dye with the polymer. In this way, the dye becomes permanently covalently bound to the polymer.Type: GrantFiled: December 21, 1990Date of Patent: September 29, 1992Assignee: Allergan, Inc.Inventors: Debabrata Bhaumik, Patrick K. Chen
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Patent number: 5145486Abstract: There is disclosed a process for producing non-skittery and level dyeings on wool with reactive dyes in the presence of an auxiliary combination, which process comprises dyeing wool with an aqueous liquor consisting of at least one reactive dye and an auxiliary combination comprising, as component (a), at least one compound of formula ##STR1## and, as component (b), at least one compound of formula ##STR2## wherein R.sub.1 and R.sub.2 are each independently of the other an aliphatic radical of 12 to 24 carbon atoms,Q and Q' are each independently of the other C.sub.1 -C.sub.4 alkyl, --CH.sub.2 --CO--NH.sub.2, ##STR3## A.sup..crclbar. and A'.sup..crclbar. are an anion, Z.sub.1, Z.sub.2, Z'.sub.1 and Z'.sub.2 are each independently of one another hydrogen, SO.sub.3 M or PO.sub.3 M,wherein M is hydrogen, alkali metal or ammonium, t.sub.1 and t.sub.2 are 1 or 0, when t.sub.1 and t.sub.2 are O, Z.sub.1, Z.sub.2, Z'.sub.1 and Z'.sub.2 are hydrogen or one of Z.sub.1, Z.sub.2, Z'.sub.1 and Z'.sub.Type: GrantFiled: February 11, 1991Date of Patent: September 8, 1992Assignee: Ciba-Geigy CorporationInventor: Klaus Hannemann
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Patent number: 5145485Abstract: By adding boric acid or salts of boric acid before or during the pressure permeation of anionic dyestuff solutions, the filtration flux is substantially increased, resulting in a low-cost process, due to the shorter plant time required.Type: GrantFiled: March 6, 1991Date of Patent: September 8, 1992Assignee: Bayer AktiengesellschaftInventors: Martin Michna, Werner Zillger, Dietrich Tegtmeyer
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Patent number: 5145484Abstract: The invention relates to a stable, dust-free commercial form comprising at least one water-soluble monoreactive dye which comprises a monofluoro-s-triazine reactive radical, and/or at least one water-soluble polyreactive dye in a polyvinyl alcohol envelope.The dyeings obtained with the stable, dust-free commercial form are distinguished by good general fastness properties.Type: GrantFiled: March 29, 1991Date of Patent: September 8, 1992Assignee: Ciba-Geigy CorporationInventors: Roger Lacroix, Ulrich Strahm