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.

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.

Abstract: Compounds of formula (I) with the meanings of R1, R1′, R2, R2′, X, X′, Y, Y′, m and n as given in claim 1 can be used as paper dyes or direct dyes or for the preparation of ink-jet inks.

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.

Abstract: A method of improving the stability to ozone exposure of dyes on natural or synthetic polyamide fiber materials comprises treating the fiber material, before, during or after dyeing, with a liquor comprising a homopolymer or copolymer having structural repeating units of formula (1) in which R1 is unsubstituted or substituted C1-C4alkyl. The resulting dyeings and prints feature improved ozone fastness with no effect on hue, colour yield and other fastness properties such as light fastness, for instance.

Abstract: Process for dyeing or printing paper, films of plastic or fibre material containing hydroxyl groups or containing nitrogen with reactive dyes, which comprises using at least one reactive dye of the formula (1) from the following group a) and at least one reactive dye from the following groups b), c) and d): a) green- or blue-dyeing reactive dyes of the formula (1) b) blue-dyeing reactive dyes of the formula (2) or (3) c) red-dyeing reactive dyes of the formula (4) d) yellow- or orange-dyeing reactive dyes of the formula (5)

Abstract: Dye mixtures comprising water-soluble fiber-reactive azo dyes, preparation thereof and use thereof Described are dye mixtures comprising yellow dyes of the formulae indicated and defined in claim 1, which are useful for dyeing hydroxyl- and/or carboxamido-containing material, especially fiber material, such as cellulose fibers, for example cotton and filament viscose, and wool and also synthetic polyamide fibers.

Abstract: Methods for the deep shade dyeing of melamine fiber-containing textile articles include bringing an undyed melamine fiber-containing textile article into contact with a dye bath containing a dyestuff and an acid donor at a pH of greater than about 6.0 and an elevated dyeing temperature greater than about 100° C. for a time sufficient to dye the textile article with minimal loss of melamine fibers due to acid hydrolysis. Most preferably, the textile article or articles to be dyed is placed into the dye bath at ambient temperature, and thereafter the dye bath containing the textile article or articles to be dyed is heated to the elevated dyeing temperature, for example, at a rate of between about 0.5 to about 2.0° C. per minute. Suitable dyes include non-complexed acid dyes or acid dyes complexed with a metal (e.g., iron, cobalt, copper, aluminum or any transition metal). Suitable acid donors include butyrolactones, ethylene glycol monoformates and ethylene glycol diformates.

Abstract: Described are dye mixtures comprising one or more azo dyes (1) and one or more azo dyes (2) or (3) or (2) and (3), all these azo dyes containing a 1-(halotriazinylamino)-3,6- or -4,6-disulfo-8-naphthol coupling component and the third substituent in the triazine moiety of (1) and similarly of (2) and of (3) being an optionally alkyl- and/or phenyl-substituted amino radical or heterocyclic radical and the diazo component in (1) containing a fiber-reactive group of the vinyl sulfone series and being an optionally alkyl- and/or alkoxy-substituted phenyl or optionally sulfo-substituted naphthyl radical, in (2) being an optionally alkyl-, alkoxy-, chlorine-, bromine-, sulfo- and/or carboxyl-substituted phenyl or optionally sulfo-substituted naphthyl radical and in (3) being a sulfophenyl radical which, attached via an amino group, possesses a fiber-reactive halopyrimidine radical or a halotriazine radical having a fiber-reactive group of the vinyl sulfone series.

Abstract: Doubled reactive dyes of the general formula I ##STR1## where Chr is a chromophore residue with or without further fiber-reactive groups and derived from a metallized or unmetallized mono- or disazo dye, from a triphendioxazine, from an anthraquinone, from a metallized formazan or from a metallized phthalocyanine,Z.sup.1, Z.sup.2 and Z.sup.3 are each independently of the others hydrogen or substituted or unsubstituted C.sub.1 -C.sub.6 -alkyl,Hal is fluorine or chlorineL.sup.1 and L.sup.2 are each independently of the other C.sub.2 -C.sub.6 -alkylene with or without interruption by 1 or 2 unadjacent oxygen atoms, andA is hydrogen, substituted or unsubstituted C.sub.1 -C.sub.6 -alkyl, substituted or unsubstituted phenyl, substituted or unsubstituted C.sub.2 -C.sub.3 -alkenyl, substituted or unsubstituted C.sub.1 -C.sub.6 -alkoxy, substituted or unsubstituted phenoxy or C.sub.1 -C.sub.6 -alkylamino,and their mixtures are prepared and useful for dyeing or printing hydroxyl-containing or nitrogenous substances.

Abstract: The invention relates to mixtures of optical brighteners comprising nonionic polyester brighteners and anionic or nonionic polyamide brighteners, which develop a synergistic effect. The brighteners of the invention are suitable for polyamide and polyurethane fabrics but also for blends of these fabrics with other natural or synthetic fibers.

Abstract: The present invention relates to dye mixtures comprising at least one compound of the formula (I) ##STR1## and at least one compound of the formula (II) ##STR2## where the substituents are each as defined in the description part, which are highly useful for dyeing and printing hydrophobic synthetic material.

Abstract: A process for arresting or attenuating ultraviolet induced damage to nylon fibers comprising dyeing cationic dyeable nylon fibers at a pH of about 2.5 or less with an acid dye, a fiber reactive dye or premetallized acid dye and, subsequent to exposing said fibers to fiber damaging amounts of ultraviolet light, applying a neutralizing aqueous solution having a pH of about 7.5 or greater to said fibers, thereby arresting or attenuating ultraviolet induced damage to said nylon fibers. The nylon fibers may be in a carpet which may be treated after installation.

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 sulfo-substituted 2-amino-naphthalene as 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.

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.

Abstract: Described are dye mixtures of dyes of the general formulae (1) and (2) ##STR1## where M is hydrogen, an alkali metal or the equivalent of an alkaline earth metal, R.sup.1, R.sup.2 and R.sup.3 are independently hydrogen or sulfo, X.sup.1 and X.sup.2, are independently chlorine, fluorine, hydroxy, alkoxy of 1 to 4 carbon atoms, optionally substituted phenyl, optionally substituted morpholino, optionally substituted pyrimidino, cyanoamino or an amino group of the formula --NR.sup.4 R.sup.5, where R.sup.4 is hydrogen, alkyl of 1 to 4 carbon atoms, unsubstituted or sulfo-substituted phenyl or unsubstituted or sulfo-substituted naphthyl, R.sup.5 is hydrogen, optionally substituted alkyl, which may be interrupted by oxy or amino, or optionally substituted phenyl or unsubstituted or sulfo-substituted naphthyl, or the group --NR.sup.4 R.sup.5 is the radical of an aliphatic heterocycle, the groups Y.sup.1 --SO.sub.2 --, Y.sup.2 --SO.sub.2 -- and Y.sup.3 --SO.sub.

Abstract: The method for dyeing a polyamide fabric of the present invention comprises the step of dyeing a polyamide fabric having structural variations in the longitudinal direction of the fibers, by a dye liquor containing an anionic reactive dye and regulated at pH 3.about.8. The dyed product of the present invention is a dyed polyamide fabric obtained by said dyeing method. Furthermore, the dyed product of the present invention is obtained as a grandrelle tone dyed product by dyeing a polyamide fabric having structural variations in the longitudinal direction of the fibers by a reactive dye, and being 4th or higher grade in the wash fastness specified in JIS L-0844.The present invention can provide a method for dyeing a polyamide fabric in a clear high grade grandrelle tone and to have excellent wash fastness, and also a grandrelle tone dyed product.

Abstract: The present invention relates to novel, three component, mixtures comprising red reactive dyes which in the free acid forms are represented by the formula (I), (II) and (II'),a) a red reactive dye of formula (I) ##STR1## where the variables are as described in the claims. The mixtures are suitable for dyeing and printing cellulose containing fibre materials and produce dyeings and prints which exhibit good build up and fastness properties.

Abstract: The present invention concerns dye mixtures of fiber-reactive azo dyes, suitable for dyeing hydroxy- and/or carboxamido-containing material, such as cellulose fibers, like cotton, or wool and nylon, bright orange to red shades. The mixtures of the invention comprise one or more monoazo dyestuffs corresponding to the general formula (1) and one or more monoazo dyestuffs corresponding to the formula (2) wherein the general formulae (1) and (2) are defined as given in claim 1, a method for their preparation and a process for dyeing hydroxy- and/or carboxamido containing fiber material in which a inventive dye is applied to the material.

Abstract: Monoazo dyes having formula (1) ##STR1## wherein Q is --Br or --Cl; R.sup.1 and R.sup.2 each independently is H or is selected from the group consisting of C.sub.1-6 -alkyl and aryl groups, each of which may be unsubstituted or substituted by one or more nonionic substituents; and R.sup.3, R.sup.4, R.sup.5 and R.sup.6 each independently is H, F, Cl, Br, I, --SO.sub.2 F or an organic moiety selected from the group consisting of C.sub.1-6 -alkyl, C.sub.1-6 -alkoxy, C.sub.1-4 alkanoylamino, --NHSO.sub.2 alkyl, --NHCOC.sub.1-4 alkyl and --Ophenyl moieties, each organic moiety being unsubstituted or substituted by one or more nonionic substituents are provided. The dyes can be employed for the colouring of synthetic textile material.

Abstract: The invention is a composition of matter useful as an acid yellow dye having formula (I) ##STR1## wherein: X is hydrogen or SO.sub.3.sup.- M.sup.+ ; M.sup.+ Na.sup.+, Li.sup.+, K.sup.+, NH.sub.4.sup.+, or hydroxyalkylammonium of the formula [H--(OCH.sub.2 CH.sub.2).sub.n ].sub.p NH.sub.m, where n is 1 to 5, p is 1 to 3, and p+m is 4; R.sub.1 is hydrogen, a metal ion, an alkyl or C.sub.1-4, of hydroxyalkyl of C.sub.1-4, and combinations thereof; and R.sub.2 is an unsubstituted aromatic ring or a substituted aromatic ring having at least one substituent, provided that when one of the substituents is SO.sub.3.sup.- M.sup.+, X is hydrogen; and combinations thereof. The invention also includes a process for dyeing a material with this compound and the material so dyed.

Abstract: The application is concerned with a compound of the formula (I) ##STR1## and a process for making the same. The compound is useful as fiber-reactive dyestuff in dyeing or printing onto hydroxy- or nitrogen-containing substrates. A printing composition comprising this fiber-reactive dyestuff and a copper phthalocyanine allows to obtain dyeings with less catalytic fading.

Abstract: The present invention is a dye mixture containing one or more disazo dyes conforming to the formula (1), one or more monoazo dyes conforming to the formula (2), and one or more dyes of the formulae (3) The invention further relates to a method for its preparation and a process for dyeing hydroxy- and/or carboxamido containing fiber material in which the inventive dye is applied to the material.

Abstract: The invention relates to dye mixtures comprising at least one dye of formula (1) ##STR1## wherein R.sub.1 is hydrogen, C.sub.1 -C.sub.4 alkyl or C.sub.1 -C.sub.4 alkoxy and R.sub.2 is hydrogen or C.sub.1 -C.sub.4 alkyl, together with at least one dye of formula (2) ##STR2## wherein R.sub.3 is hydrogen, C.sub.1 -C.sub.4 alkyl or C.sub.1 -C.sub.4 alkoxy, R.sub.4 is hydrogen or C.sub.1 -C.sub.4 alkyl and R.sub.5 is C.sub.2 -C.sub.6 alkyl uninterrupted or interrupted by oxygen, with the proviso that R.sub.1 is not methyl when R.sub.2, R.sub.3 and R.sub.4 are hydrogen and R.sub.5 is ethyl.The dye mixtures are suitable for dyeing or printing natural or synthetic polyamide fibre materials, especially in combination with other dyes and especially from short liquors. The dye mixture is distinguished by generally good properties, especially good uptake and good solubility.

Abstract: The invention consists of a process to improve the resistance to stains on yarns, on the basis of wool, silk, polyamide, polyacrilonitrile, natural and artificial cellulosic fibres and in general, all other synthetical fibres which can be dyed. According to the invention the yarns are treated during the dyeing process with an aqueous solution containing up to 5% tannic acid in acid medium. It is economically advisable to add a stabiliser to the solution to avoid oxidation of the solution and the fibres, and possibly a wetting agent. Preferably the treatment is made during the dyeing procedure, before, during or after the effective dyeing step.

Abstract: Stain-resistant nylon carpet is prepared by dyeing and printing cationic-dyeable nylon fibers with acid or premetallized dye. Lightfastness and depth of shade of an apparent value equal to acid dyeable nylons is obtained with superior stain resistance equal to commercially available solution dyed nylon carpeting.

Abstract: A monoazo dye of the formula: ##STR1## wherein: R.sup.1 represents --C.sub.3 H.sub.6 CN, --C.sub.2 H.sub.4 Cl, --C.sub.3 H.sub.6 Cl, --C.sub.2 H.sub.4 OCOCH.sub.3 or --C.sub.2 H.sub.4 OCOCH.sub.2 Cl;R.sup.2 and R.sup.3 each independently represent a C.sub.1-4 -alkyl group; andR.sup.4, R.sup.5 and R.sup.6 each independently represent H, F, Cl, Br, I, --SO.sub.2 F, or an organic moiety selected from the group consisting of C.sub.1-6 alkyl, C.sub.1-6 alkoxy, C.sub.1-4 alkanoylamino, --NHSO.sub.2 alkyl, --NHCOC.sub.1-4 alkyl and -Ophenyl moieties, each organic moiety being unsubstituted or substituted by at least one nonionic substituent.

Abstract: Methods of dyeing a material, comprising treating the material with a dyeing system which comprises (a) one or more mono-, di- or polycyclic aromatic or heteroaromatic compounds, and (b) (i) a hydrogen peroxide source and an enzyme exhibiting peroxidase activity or (ii) an enzyme exhibiting oxidase activity on the one or more aromatic or heteroaromatic compounds; wherein the material is a fabric, yarn, fiber, garment or film made of cotton, diacetate, flax, linen, lyocel, polyacrylic, synthetic polyamide, polyester, ramie, rayon, tencel, or triacetate.

Abstract: A process for imparting long-lasting antimicrobial properties to fabrics is disclosed which entails the diffusion of triclosan esters within each individual fiber of a textile. One preferred method is performed in a standard jet dye bath which requires a high range of temperatures to effectively color fabrics. Dyeing in this manner also involves diffusing compounds within individual fibers; thus, this manner of incorporating dyestuffs and colorants within textile fabrics provides a compatible and effective vehicle for simultaneously introducing triclosan esters within such textile fibers, also. A dye bath application is not required, however, as any procedure which allows contact between a triclosan ester derivative and a fabric at a sufficient temperature and for a sufficient time to effectuate diffusion of the ester within each individual fiber of the fabric is also contemplated within this invention.

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.

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.

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.

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.

Abstract: The present invention concerns orange dye mixtures of fiber-reactive azo dyes, suitable for dyeing hydroxy- and/or carboxamido-containing material, such as cellulose fibers, like cotton, or wool and nylon, which comprise one or more monoazo dyestuffs corresponding to the general formula (1) and one or more monoazo dyestuffs corresponding to the formula (2) ##STR1## in which D.sub.1 and D.sub.2 are each, independently from one another, a radical of a benzene or naphthalene nucleus, R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are each, independently from one another, hydrogen, methyl, ethyl, methoxy, ethoxy, sulfo or carboxy, M is hydrogen or an alkali metal and the groups Y.sub.1 --SO.sub.2 -- and Y.sub.2 --SO.sub.2 -- are each fiber reactive groups of the vinylsulfone series.

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.

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.

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##

Abstract: A process for fixing dyes impregnated in fine-dimensional synthetic textile substrates in an environmentally safe manner. The process comprises contacting the dyed synthetic substrates with a phenol- and formaldehyde-free dye-fixative composition comprising:(a) polymethacrylic acid,(b) copolymers of methacrylic acid consisting essentially of methacrylic acid and an ethylenically unsaturated comonomer selected from the group consisting of 2-acrylamido-2-methyl-propanesulfonic acid, sodium vinyl sulfonate, sodium styrene sulfonate, alkyl acrylate,(c) sulfamic acid, and(d) combinations of (a), (b) and (c).

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.

Abstract: Stain-resistant, lightfast nylon carpet is prepared by dyeing cationic-dyeable nylon fibers by applying a print paste containing an acid dye or a premetallized acid dye at a pH of from about 2.0 to about 6-5 and fixing the dye to the fibers, forming the printed nylon fibers into a carpet, applying a print paste containing an acid dye or premetallized acid dye and dyeing the nylon fibers contacted with the print pastes and thereafter heating the dyeladen fibers to fix the dye into the fibers. Stain-resistant lightfast nylon yarns are prepared by printing cationic-dyeable yarn with a premetallized acid dye at a pH of about 4.0 to less than about 6.5 then fixing the dye to the yarn.

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

Abstract: The present invention relates to liquid or pulverulent textile dye preparations including one or more dispersants based on an alkoxylated and carboxylic-esterified castor oil of the general formula I ##STR1## where A, X.sup.1, X.sup.2, Z.sup.1, Z.sup.2, Z.sup.3, n.sup.1 and n.sup.2 are each as defined in Claim 1.

Abstract: Improved compositions for dyeing or printing textile materials of natural or synthetic fibers or mixtures of the two comprise polyaspartic acid or a derivative thereof and, if appropriate, wetting agents, emulsifiers, leveling agents, dispersing agents, reducing agents, oxidizing agents, solubilizing agents, defoamers, reist agents, pH regulators, complexing agents or several of these as further components.

Abstract: Suede-like artificial leather is described that is treated with at least one dye selected from the group consisting of sulfur dyes, vat dyes and sulfur vat dyes, and 2,2',4,4'-tetrahydroxy benzophenone. The suede-like artificial leather has excellent color resistance to light and color fastness to both washing and dry-cleaning.

Abstract: A method is provided for dyeing a non-cellulosic organic material with a dye, preferably a vat dye, comprising (a) treating the material with a dye in the presence of a reducing agent and an alkali and (b) oxidising the treated material produced in step (a) characterised in that the concentration of reducing agent used in step (a) is increased above that used for conventional vat dyeing such that the resultant dyed material has a lightfastness of 5 or more by BS 1006 B01 and B02 (1978) and/or has a washfastness or 5 or more by British Standard Test BS 1006 C06.C2 (1981). Preferably the step (a) is carried out in the presence of an alkali in concentration of at least 0.5 molar, more preferably 1 molar or more and most preferably 1 to 4 molar. The method provides vat dyed non-cellulosic organic materials having a reflectance of infrared light of wavelength 400 nm to 680 nm of less than 15%.

Abstract: A dye of Formula (1): ##STR1## wherein: D is a group of Formula (2): ##STR2## or a group of Formula (3): ##STR3## or a group of Formula (4): ##STR4## The variables are defined in the disclosures. The dyes and dye mixtures produce blue to green shades on synthetic textile materials such as polyester which have good build up and good light- and wet-fastness.

Abstract: A process for preparing photochemically stable dyed nylon compositions includes providing to a dyebath a shaped article of poly(epsilon-caprolactam) hydrolytically polymerized in the presence of water, a carboxylic acid chain regulator and a hindered piperidine derivative; and in the dyebath, dyeing the shaped article with one or more metalized or nonmetalized acid dyestuffs.

Abstract: A process for the dyeing of a fibrous article utilizing closed-loop metered dosing of one or more dyes and one or more chemicals that are adjusted in real time as a function of selected monitored parameters of the dyeing bath. The process includes immersing the fibrous article in a heated liquid bath of a solvent medium for the dye wherein the bath has a predetermined pH. Acid is added to the dyeing bath to reduce the pH according to a predetermined profile that is responsive to real-time measurements of dyeing bath pH. Dye is also added to the dyeing bath during dyeing as a liquid concentrate and responsive to real-time calculations of dye uptake by the fibrous article. Dye uptake is calculated periodically by determining in real time during dyeing (1) the solution concentration of the dye in the dyeing bath and (2) the amount of the dye added to the dyeing bath, and then calculating the uptake of dye by the fibrous article therefrom.

Abstract: Disazo dyes of the formula ##STR1## where the ring A may be benzofused,X is hydrogen or C.sub.1 -C.sub.4 -alkyl,R.sup.1 is hydrogen, C.sub.1 -C.sub.4 -alkyl, halogen, carboxyl, C.sub.1 -C.sub.4 -alkoxycarbonyl or hydroxysulfonyl,R.sup.2 is hydrogen, C.sub.1 -C.sub.4 -alkyl, halogen, carboxyl or C.sub.1 -C.sub.4 -alkoxycarbonyl, or R.sup.1 and R.sup.2 together are a radical of the formula L--NZ--CO, where L is methylene or carbonyl and Z is substituted or unsubstituted C.sub.1 -C.sub.4 -alkyl or substituted or unsubstituted phenyl, andR.sup.3 is hydrogen, C.sub.1 -C.sub.4 -alkyl, hydroxyl, C.sub.1 -C.sub.4 -alkoxy, phenoxy, C.sub.1 -C.sub.4 -alkanoyloxy or benzoyloxy,are useful for dyeing natural or synthetic substrates.

Abstract: A method of making a dyed nylon walk-off mat having improved washfastness includes dyeing nylon yarn, or a tufted nylon mat, in a fiber reactive dye solution having a pH in the range of about 0.5 to about 2.5. The yarn is then heated, such as by steam, at a temperature above 200.degree. F., after which the yarn is treated with an alkaline solution followed by a heat treatment. A backing, such as of rubber or vinyl, is applied to the mat at an elevated temperature. The application of the backing at elevated temperature, and the heat treatment subsequent to application of the alkaline solution, may be performed simultaneously.