Abstract: There is described a process for dyeing leather with the dye of the formula ##STR1##

Abstract: The compositions for dyeing hair contains at least one 4'- amino-2-halogen-4-[bis-(.beta.-hydroxyethyl)amino]azobenzene. The hair dye compositions according to the invention have a good resistance to acids and provide a wide assortment of natural and fashion shades.

Abstract: The composition for oxidative dyeing of hair contains 0.01 to 5.0 percent by weight of at least one 5-aminophenol compound of the formula ##STR1## wherein R is an alkyl group having 1 to 4 carbon atoms, X is fluorine or OR.sup.1 and R.sup.1 is an alkyl group having 2 to 4 carbon atoms, a monohydroxyalkyl group with 2 to 4 carbon atoms or a dihydroxyalkyl group with 3 and 4 carbon atoms, and physiologically tolerated water-soluble salts thereof as coupler substance; and 0.1 to 6.1 percent by weight of a total amount of the coupler substance and at least one developer substance. The developer substance can be 1,4-diaminobenzene, 2,5-diaminotoluene, 2,5-diaminobenzyl alcohol, 2-(2'-hydroxyethyl)-1,4-diaminobenzene, 4-aminophenol, 4-amino-3-methylphenol, 4-amino-2-methoxymethylphenol, 4-amino-2-ethoxy-methylphenol and tetraaminophyrimidine and physiologically tolerated water-soluble salts thereof.

Abstract: The invention provides 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, in the presence of at least one colorless binder which contains at least one polymerizable double bond, and at least one photosensitizer, as well as further optional auxiliaries, by subjecting said material to irradiation with UV light. The invention also provides a dyeing formulation which enables the dyeing to be fixed by the inventive process.

Abstract: A marine dye composition comprising a water soluble or dispersible dye, particles of a density controlling material having a bulk density and being present in an amount so as to cause said composition to have a relative density of about 1 and to be capable of floating at the surface of a body of water and a water soluble or dispersible binding agent for binding the dye and particles of density controlling material together.

Abstract: 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.

Abstract: 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.

Abstract: Method for dyeing keratinous fibres, in particular human keratinous fibres such as hair, characterized in that a composition containing, in a medium appropriate for dyeing:at least the coupler 4-hydroxyindole, as well as the salts of this compound;at least one oxidation dye precursor; andat least one oxidising agent; is applied to said fibres, the pH of the composition applied to the fibres being less than 7.

Abstract: Azo dyes useful for dyeing natural or synthetic substrates have the formula ##STR1## where n is from 1 to 4,q is 1 or 2,L.sup.1 is hydrogen or C.sub.1 -C.sub.3 -alkyl,L.sup.2 is acetyl, carbamoyl or hydroxysulfonyl, andD is the radical of a diazo component.

Abstract: A process for applying a lubricant to a plurality of yarn packages directly to a dye bath in a package dyeing machine during the dyeing process. The process includes placing a plurality of yarn packages into a package dyeing machine. The plurality of yarn packages are then dyed in the package dyeing machine and the dye bath is cooled. A lubricant is then directly applied to the dye bath and the plurality of yarn packages in the package dyeing machine. In the preferred embodiment, the lubricant is a wax emulsion based on paraffin wax with a melting point of between about 138.degree. F. to 143.degree. F.

Abstract: 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.

Abstract: The composition for oxidative dyeing of hair contains at least one coupler and 0.010 to 3.0 percent by weight of at least one developer selected from the group consisting of aminopyrazole derivatives of the formula (I): ##STR1## wherein R is selected from the group consisting of hydrogen and alkyl groups having one to four carbon atoms; n=2 or 3; and physiologically tolerated, water-soluble salts thereof. The developer and coupler substances are present in the composition in a total amount of from 0.1 to 5.0 percent. New pyrazole derivative compounds are also part of the invention.

Abstract: 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).

Abstract: A dye composition for keratinous fibers which contains a coupler and a developer are disclosed. The present coupler component is a novel 2-alkoxy-3,5-diaminopyridine derivatives of the formula (1): ##STR1## wherein R1 and R2 are the same or different from each other and independently represent a hydrogen atom, a lower alkanoyl group or a lower alkyl group which may be substituted by at least one hydroxyl group, and R3 is a lower alkyl group which may be substituted by at least one hydroxyl group, or a salt thereof; provided that R1 and R2 are not both a hydrogen atom or an acetyl group at the same time. The present 2-alkoxy-3,5-diaminopyridine derivatives are useful as couplers in dye compositions, and are capable of dyeing keratinous fibers such as hair in a bright blue color with excellent dyeability. Dye compositions containing the present compounds as a coupler show excellent resistance to discoloration, excellent resistance to shampooing and excellent resistance to friction.

Abstract: A two part aqueous composition for coloring human hair which forms a gel on mixing of an alkaline aqueous lotion first part having a pH of from about 7 to about 11 containing from about 0.005% by weight to about 5% by weight of at least one primary intermediate and at least one coupler for the formation of oxidation dyes, from about 0.1% to about 5% of a monomeric quaternary ammonium compound having one long chain alkyl substituent, from about 0.5% to about 15% by weight of an amphoteric surfactant and at least 70% by weight water, and an aqueous developer second part having a pH of from about 2 to about 6 containing from about 0.5% by weight to about 40% by weight of a peroxide oxidizer and from about 0.1% by weight to about 20% by weight of a water insoluble anionic polymer which dissolves in the formed gel.

Abstract: Dye mixtures comprising at least two metal-free dyes of different colors having in each case two sulfo or carboxyl groups and a molecular weight of between 790 and 1100 are used for dyeing leather. A trichromatic dye mixture comprising at least one yellow dye of the formula (1), at least one red dye of the formula (2) and at least one blue dye of the formula (3) according to claim 2 is preferably used. Leather can be dyed in brilliant shades using these dye mixtures.

Abstract: Dye-receiving element for thermal dye sublimation transfer comprising a support having on one side a dye-receiving layer and, optionally on the other side a backcoat layer, the support carrying on at least one side a subbing layer comprising a copolyester formed by polycondensation of at least one aromatic dicarboxylic acid and at least one aliphatic diol, wherein the copolyester further comprises at least one comohomer having at least one sulfonate group in the acid form, alkalimetal salt form, and mixtures thereof.

Abstract: A process of dyeing hair by preparing and applying to the hair an aqueous reaction medium comprising dihydroxybenzothiazine and a periodsate, iodate, ferricyanide or persulfate oxidizing agent, the composition optionally containing a color modifier selected from the group consisting of direct dyes, primary intermediates, couplers, cysteine, dopa species and mixtures thereof, additionally containing a buffer to maintain the pH in the range from 2 to 11 during the oxidation reaction; and removing the aqueous reaction medium from the hair after the desired color is attained and compositions and kits for practicing such processes. The reaction medium may be formed by simultaneous addition of the benzothiazine and the oxidant to the hair or by addition of the benzothiazine followed addition of the oxidant.

Abstract: Water-insoluble naphthalic acid imide dyestuffs of the following formula: ##STR1## wherein D is ##STR2## wherein R.sup.1 is C.sub.1 -C.sub.8 alkyl which may be substituted, R.sup.2 is hydrogen, halogen, lower alkyl, lower alkoxy or cyano, X is oxygen or sulfur, and m is 0 or 1; A is phenylene, alkylene, aralkylene or --C.sub.2 H.sub.4 OC.sub.2 H.sub.4 --; B is oxygen, sulfur or ##STR3## wherein R.sup.3 is hydrogen or lower alkyl; Y is a 6-membered nitrogen-containing heterocyclic ring having at least one active halogen atom; and n is 0 or 1.

Abstract: The invention provides methods, compositions and kits for oxidative hair dyeing utilizing an oxidative hair dye precursor, and an alkali metal chlorite together with a water soluble copper, iron, manganese or cobalt salt, a chelate of said salts or a mixture of said salts and chelates.