Abstract: A process of preparing a dye composition and a resultant dye composition. The process includes preparing a mixture comprising a triphenylmethane dye and oxidation products by reacting methylenedianiline, aniline, an oxidation catalyst, and an oxidant; separating the oxidation products from the triphenylmethane dye to produce an aqueous solution of oxidation products; treating the solution of oxidation products with a basic compound; separating unreacted aniline from the solution of oxidation products and forming a mixture of oxidation products; and sulfonating the mixture of oxidation products to form a dye composition.

Abstract: Liquid or solid mixtures of low-salt sulfo-containing 1:2 metal complex dyes and poly-N-vinylpyrrolidone or copolymers of N-vinylpyrrolidone and vinyl acetate are especially useful for dyeing paper and wood and also for dyeing and finishing leather and fur.

Abstract: A process for dyeing keratin-containing fibers, comprises treating said fibers with a tinctorially effective amount of a dye of the formula ##STR1## where D is the radical of a diazo component of the formula ##STR2## R.sub.1 is an unsubstituted C.sub.1 -C.sub.4 alkyl, or C.sub.1 -C.sub.4 alkyl substituted with OH, C.sub.1 -C.sub.4 alkoxy, halogen, CN, amino, C.sub.1 -C.sub.4 monoalkylamino, or di-C.sub.1 -C.sub.4 alkylamino, R.sub.2 and R.sub.3 are independently of each other hydrogen, an unsubstituted C.sub.1 -C.sub.4 alkyl, or C.sub.1 -C.sub.4 alkyl substituted with OH, C.sub.1 -C.sub.4 alkoxy, halogen, CN, amino, C.sub.1 -C.sub.4 monoalkylamino, or di-C.sub.1 -C.sub.4 alkylamino, or R.sub.3 and R.sub.2, together with the nitrogen and carbon atoms joining them together form a 5- or 6-membered ring, R.sub.5 is hydrogen, C.sub.1 -C.sub.4 alkoxy, halogen, C.sub.1 -C.sub.4 alkyl or C.sub.1 -Calkylcarbonylamino, or R.sub.5 and R.sub.

Abstract: A process for the two-stage oxidation dyeing of keratin fibers by applying to the keratin fibers:in a first stage, at least one composition A containing at least one manganese salt and/or a manganese complex,in a second stage, at least one composition B having a pH of greater than or equal to 6, and resulting from the extemporaneous mixing of at least one composition B1 containing at least one 4-substituted 1-naphthol and at least one composition B2 containing at least one oxidizing agent, and corresponding multi-compartment dyeing kit.

Abstract: In the method of a photo-oxidative treatment of tissue containing collagen tissue, the tissue is pre-treated with an aqueous conditioning solution prior to an irradiation with light. In this pre-treatment the tissue permeable to the solution is loaded with a dye contained in the solution, in particular with methylene blue. This dye, activated by light, catalyzes photo-oxidative reactions. In accordance with the invention a substance is added to the conditioning solution, the refractive index of which is greater than that of water. As a result of this additive, the tissue containing collagen assumes a greater transparency for light during the pre-treatment.

Abstract: Aromatic allylaminonitro compounds corresponding to formula (I): ##STR1## in which R.sup.1 is hydrogen or an alkyl group containing 1 to 4 carbon atoms, R.sup.2 is hydrogen, an alkyl group containing 1 to 4 carbon atoms or an allyl group CH.sub.2 C(R.sup.5)=CH.sub.2, where R.sup.5 is hydrogen or an alkyl group containing 1 to 4 carbon atoms, R.sup.3 is carboxyl, hydroxy, nitro, halogen or a group NR.sup.6 R.sup.7, where R.sup.6 and R.sup.7 independently of one another represent hydrogen, an alkyl group containing 1 to 4 carbon atoms, a hydroxyalkyl or dihydroxyalkyl group containing 2 to 4 carbon atoms or an allyl group CH.sub.2 C(R.sup.8)=CH.sub.2, where R.sup.8 is hydrogen or an alkyl group containing 1 to 4 carbon atoms, and R.sup.4 is hydrogen or nitro, with the proviso that R.sup.3 and R.sup.4 are not both nitro. The compounds are useful for dyeing fibers, particularly human hair.

Abstract: Triphendioxazine compounds corresponding to the formula (1) ##STR1## in which Z is a radical of the formula (2) ##STR2## in which Y.sup.1 and Y.sup.2 each vinyl .beta.-hydroxyethyl or an ethyl radical which contains a substituent which can be eliminated under alkaline conditions in the .beta.-position, and in which Y.sup.1 and Y.sup.2 are not simultaneously .beta.-hydroxyethyl, W.sup.1 and W.sup.2 are both allyene having 2 to 6 carbon atoms, A is a covalent bond of a group of the formula --B.sup.1 --N(R.sup.3)--, in which R.sup.3 has one of the meanings of R.sup.1 and B.sup.1 is an aliphatic or aromatic bridge member, and in which the group--N(R.sup.1) --B.sup.1 --N(R.sup.3)-- can also be in total a bivalent saturated heterocyclic radical, and Z.sup.0 is hydrogen or a group of the formula (4) ##STR3## in which A.sup.0 is a covalent bond or a radical or the formula --N(R.sup.4)--B.sup.2 -- having the meaning corresponding to the above formula --B.sup.1 (NR.sup.3)-- are described.

Abstract: Wet leather treating compositions and methods of wet treating leather hides employing alkylpolyglycosides for enhancing the penetration and absorption of the leather treatment formulations in an environmentally safe manner. The compositions are substantially free of volatile organic compounds.

Abstract: The present invention is a process for producing two-tone or multi-color effects on animal fibers and the products derived from these fibers. Pretreatment of the fibers to increase the affinity of the fiber relative to metallic salts or dyes for is accomplished by treatment with an ethanolamine solution containing varying amounts of mono-, di-, or triethanolamine. A mordant treatment with a metallic salt exposes the pretreated fibers to an aqueous solution of organic acids and a metallic salt mordant having affinity for the pretreated fiber. The two-tone or multi-colored effect is achieved by combining the treated fibers with untreated fiber and dyeing the fibers in a dyestuff having affinity for the treated fiber. The dyeing process may also include placing treated and untreated fibers in a dye bath containing dye stuffs that have affinity to treated fibers and dyestuffs that have an affinity to untreated fibers.

Abstract: An asymmetric dioxazine compound represented by the following formula (I) in the free acid form: ##STR1## wherein A.sub.1 and A.sub.2 independently of one another are each sulfo, halo, alkyl or alkoxy, W is an unsubstituted or substituted aliphatic or aromatic bridging group, X.sub.1 and X.sub.2 independently of one another are each hydrogen, halo, alkyl, alkoxy or phenoxy, R.sub.1 and R.sub.2 independently of one another are each hydrogen or unsubstituted or substituted alkyl, R.sub.3 and R.sub.4 independently of one another are each hydrogen, halo, alkyl, alkoxy or unsubstituted or substituted amino, Z is a fiber-reactive group, m and n independently of one another are each 0 or 1, provided that m.noteq.n, and l is 1 or 2.

Abstract: Specific cationic polymers having hydrophobic side chains are highly suitable as binders for pigments for the dyeing of leather.

Abstract: The invention relates to a process for dyeing fur skins with oxidation dyes following a pretreatment, which comprises pretreating the fur skins with a metal mordant that contains glyoxylic acid.

Abstract: A method of processing a textile material consisting wholly or partly of keratinous fibres, characterised in that the material is treated with an aqueous composition containing at least one compound which possesses one or more ethylenic double bonds activated by two adjacent carbonyl groups. Preferred compounds include fumaric acid or maleic acid, optionally substituted with one or two halo and/or alkyl groups; or a salt, ester or amide of any said acid; or an N-substituted maleimide, optionally substituted with one or two halo and/or alkyl groups.

Abstract: The hair treatment composition of the present invention comprises (A) 2-benzyloxyethanol and (B) one or more polymers selected from the group consisting of anionic polymers, cationic polymers and amphoteric polymers. The hair dye composition of the present invention comprises (a) an acidic dye, (b) 2-benzyloxyethanol and (C) a water-soluble polymer compound.

Abstract: A highly moisture-absorptive fiber obtained by mixing and kneading one or more kinds of animal protein fibers, general protein forming the animal skin, bones, and others, pulverized to very fine powder of the 0.05 to 15 .mu.m size with a polymer of synthetic fiber, semi-synthetic fiber or regenerated fiber or polymer of chemical fiber material consisting of a mixture of more than two kinds of these polymers and spinning the kneaded composition, which can give a fine fiber having flexibility and proper elongation.

Abstract: Leather is dyed with pigments in an aqueous liquor at from 20.degree. to 60.degree. C. in the presence of an alkoxylated amine of 20 or more carbon atoms.

Abstract: Natural and synthetic polyamides are dyed with the betaines of 1:1 chromium complexes of sulfo-containing azo or azomethine dyes from an aqueous liquor.

Abstract: Process for the bath pigmentation of leather, which comprises dyeing the leather with pigment dispersions which contain a compound of the formula (I) ##STR1## where Ar is benzene or naphthalene,X is --CH.sub.2 --CH.sub.2 -- and/or --CH.sub.2 --CH(CH.sub.3)--,0 to (m-1) of the radicals A are hydrogen,1 to m of the radicals A are benzoyl and/or naphthoyl,1 to m of the radicals A are --CO--CH.dbd.CH--COOM and/or --CO--CH.sub.2 --CH(SO.sub.3 M)--COOM, where M is a cation,R.sup.1, R.sup.2 and R.sup.3 are hydrogen or alkyl of 1 to 14 carbon atoms,R is hydrogen and/or alkyl of 1 to 9 carbon atoms, n is a number from 1 to 150 and m is a number from 2 to 12,The pigment having an average particle size of 50 to 500, preferably 80 to 300, nm. By using these dispersions, which contain the pigments in a very finely divided form, it is possible to obtain thorough penetration of the leather with improved light fastness.

Abstract: A mixture comprising a yellow dye and a red dye each of formula I and a grey dye of formula II is employed in accordance with claim 1 for the trichromatic dyeing of leather.

Abstract: Leather, hides, skins or fur-skins are treated before and/or during dyeing with basic dyes, with a compound of formula I ##STR1## in which R.sub.1 is a C.sub.8-18 aliphatic residue;each R.sub.2, independently, is C.sub.1-4 alkyl;R.sub.3 is a C.sub.1-18 aliphatic residue or --CH.sub.2 -R.sub.4 where R.sub.4 is phenyl; phenyl substituted by up to two substituents selected from the group consisting of chlorine, bromine, methyl, methoxy and ethoxy; or naphthyl; andX is an anion,or a mixture thereof. Dyeings with improved levelness and reproducibility are thus obtained.

Abstract: A biomaterial implant into which is incorporated a sustained release polymer containing an anticalcium agent.

Abstract: A hair-reserving penetration dyeing of the leather side of wool- or fur-bearing skins is obtained by dyeing the wooled or fur skins in aqueous medium with hydrosoluble sulpho-group-containing sulphur dyes (a) in the presence of dye-substantive uptake assistant (b) and of non-ionic and/or anionic hydrophilic dispersants (c) and optionally in the presence of leather fatting agents (d).

Abstract: A process for dyeing keratinaceous substances such as hair, wool, skin etc., which comprises contacting the same with a composition containing an aromatic azide or azidoindole component having the formula ##STR1## wherein X is hydroxyl, alkoxyl, NR'R", in which R' and R" are independently of each other hydrogen, alkyl or hydroxyalkyl, and if R' is H or alkyl, then R" can be further carbamylalkyl, mesylaminoalkyl, acylaminoalkyl, sulfoalkyl, piperidinoalkyl or morpholinoalkyl, R' and R" can also form with the nitrogen atom to which they are attached a piperidine or morpholine ring, R is hydrogen, alkyl, hydroxyalkyl, halogen, nitro, cyano or alkoxyl, W, Y and Z are independently of each other H or R', wherein all of the aforementioned alkyl moieties can have between 1 and 8 carbon atoms, and then exposing the contacted keratinaceous material to a suitable light source for sufficient time to develop the color.

Abstract: Disclosed is a method for dyeing sueded wool- or fur-bearing skins tone-in-tone in a single bath and in one step. The dyeing is carried out with reactive dyestuffs bearing at least one reactive group selected from acryloylimino, halogenoacryloylimino and .beta.-halogenopropionylimino, in the presence of non-ionic or anionically modified polyalkoxylated surfactants.

Abstract: The dyes of the formula I indicated in patent claim 1 are suitable for dyeing furs and especially leather.They are preferably used as a mixture with a blue dye and a red dye for dyeing leather by the trichromatic process.

Abstract: Described herein is a composition for treating furred animal pelts and/or fur, which composition comprises a water soluble cationic polymer, a cationic surfactant, and water.

Abstract: The dyes of the formula I given in claim 1 are suitable for dyeing furs and in particular leather.They are preferably used in admixture with a blue dye and a red dye for the trichromatic dyeing of leather.

Abstract: A mixture of at least three selected 1:2 chromium or 1:2 cobalt complex dyes of different colors and belonging to the azo or azomethine series is used for dyeing leather and furs. The mixtures of dyes make it possible for the first time to dye leather by the trichromatic process.

Abstract: The dyes of the formula I indicated in patent claim 1 are suitable for dyeing furs and especially leather.They are preferably used as a mixture with a red dye and a yellow dye for dyeing leather by the trichromatic process.

Abstract: The dyes of the formula I indicated in patent claim 1 are suitable for dyeing furs and especially leather. They are preferably used as a mixture with a blue dye and a yellow dye for dyeing leather by the trichromatic process.

Abstract: New-meta-phenylenediamines are described for use in dyeing keratin fibres, especially human hair. These have the general formula: ##STR1## in which R represents an alkyl radical containing from 1 to 4 carbon atoms and n is an integer of from 1 to 3, or an acid salt thereof from 1 to 3 and include their acid salts.

Abstract: Disclosed are silicon-containing nitro dyes for dying organic polymers or organosiloxanes, which are reactive dyes for synthetic or natural fibers of vegetable or animal origin, having the formula: ##STR1## wherein the chromophore component is bonded with the Si-atom by homopolar bonds and wherein X represents the same or different hydrolyzable groups or a siloxane radical, Z is a bivalent alkylene radical with 1-10 carbon atoms which may be interrupted by NR' groups, R is a monovalent organic radical, R' is hydrogen, alkyl with 1-10 carbon atoms, aryl, aralkyl or said substituted radicals, Ar is a substituted or unsubstituted aryl radical, and a and b are integers from 1-3, and a process for making said dyes. Said dyes may be built into a large number of organic and inorganic molecules and color the same without fixation.

Abstract: A process is described which consists, in a first stage, in applying a composition based on a substance of vegetable or animal origin, a synthetic organic substance or a mineral substance, in suspension or in solution in a solvent and having a viscosity suitable for application to the hair, or as a powder, and making it possible to prevent or substantially to limit the passage of the dyestuffs and/or of the dyestuff precursors as far as the scalp, and, in a second stage, in dyeing the hair using one or more compositions, at least one of which contains either an oxidizable dyestuff or a direct dyestuff, the dyeing being followed, after an interval sufficient for coloring the hair, by rinsing and optionally by shampooing.

Abstract: Soluble polymeric colorants composed of free amine groups and chromophoric groups covalently bonded to an organic backbone are disclosed. The number of free amine groups is not less than one-half the number of chromophoric groups. The colorants are characterized by being free of sulfonate, phosphonate and carboxylate groups. The preparation and use of these colorants is also disclosed.

Abstract: A coating and integral treatment for improving the biophysical stability of bioprosthetic devices after implantation, particularly with respect to calcification, and, specifically, a method for treating animal tissues, such as heart valves, to provide improved biophysical stability in allograft and heterograft transplantations. The increased stability results, in-part, from the creation of a three-dimensional matrix of a primary structural component of the prosthetic device and covalently attached calcification inhibitors. Other materials, some having additional stabilizing effects, may be utilized to form additional bridges or fill the interstitial gaps in the matrix. After implantation, the resultant modified device exhibits minimal surface for intramatrix growth of calcium phosphate crystals, and additionally, may inhibit platelet aggregation, enzymatic degradation and host rejection, while minimizing the risk of mechanical failure, in the host organism.

Abstract: Aqueous composition for darkening keratinous material, particularly hair, comprise a mixture of a solution of a salt of thiosulphuric acid, preferably in an amount of 0.2-5.0% by weight as thiosulphate ion, preferably as the sodium thiosulphate or an amine such as triethanolamine thiosulphate; with a solution of a complex of bismuth with an amino-polyacetic acid such as nitrilotriacetic acid or ethylenediamine tetracetic acid, the bismuth preferably being present in an amount (measured as carbonate) of 0.1-5.0% by weight; in the presence of a water-soluble amine, preferably an a alkanolamine such as mono-, di- or triethanolamine in an amount to maintain the pH in the range 8 to 11; and of a di- or poly-hydroxy humectant, preferably glycerol or propylene glycol in an amount of 5-70% by weight.

Abstract: A process and composition for coloring substances and tissues containing keratin, by means of an agent or co-reactant having a ketone or aldehyde function. An amino-acid, in particular a thio-amino-acid, is contacted with the substance to be colored. The composition can be in the form of a solution or a suspension containing the amino-acid, applicable separately from or together with the co-reactant of known type based on a ketone or aldehyde. The invention is useful in cosmetics, for tanning the skin or coloring the hair or nails. It is also applicable to the coloration of various articles, in particular hair in general, feathers, horn, shell etc.

Abstract: An improved animal carcass tattooing paste having substantially enhanced permanency when used to place identifying marks on carcasses, comprising from about 0.05% by weight to about 10.0% by weight of a sorbitan mono-fatty acid ester, from about 0.05% by weight to about 10.0% by weight of a water soluble polyoxyethylene derivative of a fatty acid partial ester of sorbitol, from about 10.0% to about 49.0% by weight of propylene glycol, from about 10.0% to about 49.0% by weight of white mineral oil, from about 1% to about 10% by weight of a thickening agent, from about 0.1% by weight to about 10.0% by weight of inorganic viscosity modifier, from about 0.05% by weight to about 10.0% by weight of an organic dye material which is compatible with the other ingredients of said paste, and from about 1.0% to about 25.0% by weight water.

Abstract: New compounds suitable for dyeing keratin fibres, especially human hair, are described. The compounds have the formula: ##STR1## or an acid addition salt thereof, in which formula either R.sub.1 and R.sub.2 form, together with the nitrogen atom to which they are bonded, a morpholino or piperidino ring and R represents a hydrogen atom, or R.sub.1 represents a hydrogen atom, R.sub.2 represents a furfuryl or methoxyethyl radical and R represents a hydrogen atom or a methyl radical.

Abstract: New compositions for the treatment of keratin material, in particular human hair, skin and nails are provided comprising a combination of a cationic polymer with an anionic polymer. Surprisingly the anionic polymer can be retained well on the hair, even after rinsing, when applied with the cationic polymer.

Abstract: Diphenylamine which is N-monosubstituted in the 4'-position carries at least one acylamino group at the 2- or 6-position. The diphenylamine is usefully employed in a composition for dyeing keratinic fibers.

Abstract: This invention discloses compositions and methods for dyeing natural proteinaceous and synthetic polyamide fibers, particularly wool, silk and nylons, utilizing dye assistants effective with both acid and disperse dyes, such assistants being synergistic combinations of (a) dicyclopentenyl alcohol with (b) certain other materials, none of the components in either (a) or (b) being, in themselves, effective dye assistants for both acid and disperse dyes.

Abstract: A compound of the formula A-NR--(CH.sub.2).sub.n --NHR' wherein R and R' are hydrogen, n is a whole number between 2 and 6 inclusive and A is selected from (1) anthraquinonyl per se wherein NR-(CH.sub.2).sub.n --NHR' is in position 2 or (2) anthraquinonyl of the formula ##STR1## wherein R.sub.1 and R.sub.2 are selected from hydrogen and lower alkyl, and the NR--(CH.sub.2).sub.n --NHR' chain is in position 5. The compound is useful as a basic dye in coloring the hair.

Abstract: A process for the treatment of textiles, especially to impart shrink resistance thereto, in which there is applied to the textile a water-soluble curable polymeric material in the presence of alkali in an aqueous medium and simultaneously with or subsequently to such application there is applied a compatible exhaustion agent and the polymeric material is exhusted onto the textile and cured thereon.