Abstract: Disclosed are compounds of formula (1) or formula (2). The compounds are useful for the dyeing of organic materials, such as keratin fibers, wool, leather, silk, cellulose or polyamides, especially keratin-containing fibers, cotton or nylon, and preferably hair, more preferably human hair. (1) (2).

Abstract: The invention relates to a process for dyeing and/or lightening keratin fibers such as the hair, using i) at least one cationic direct dye bearing a disulfide, thiol or protected thiol function especially of formula (I) as defined in the description and ii) water vapor. The invention also relates to the use i) of at least one cationic direct dye bearing a disulfide, thiol or protected thiol function combined with ii) water vapor, for dyeing and lightening keratin fibers, and to the use of water vapor for grafting onto keratin fibers dyes bearing a disulfide, thiol or protected thiol function. The process used and the use of thiol, protected thiol or disulfide dyes combined with water vapor makes it possible especially to obtain a long-lasting coloration on keratin fibers without the use of a reducing agent and without odor.

Abstract: The invention relates to a dyeing composition comprising a fluorescent disulphide dye and to a method of dyeing keratin materials, with a lightening effect, that employs said composition. It likewise relates to new fluorescent disulphide dyes and to their uses in the lightening of keratin materials. This composition allows a particularly persistent lightening effect to be obtained.

Abstract: The invention relates to a dyeing composition comprising a fluorescent disulphide dye and to a method of dyeing keratin materials, with a lightening effect, that employs said composition. It likewise relates to new fluorescent disulphide dyes and to their uses in the lightening of keratin materials. This composition allows a particularly persistent lightening effect to be obtained.

Abstract: The invention relates to a dyeing composition comprising a fluorescent disulfide dye and to a method of dyeing keratin materials, with a lightening effect, that employs said composition. It likewise relates to new fluorescent disulfide dyes and to their uses in the lightening of keratin materials. The composition allows a particularly persistent lightening effect to be obtained.

Abstract: Disclosed herein are compositions for simultaneous shaping, dyeing, and/or lightening of keratin fibers comprising at least one disulfide direct dye and at least one organic or mineral hydroxide alkaline agent. Also disclosed herein are processes for simultaneous shaping, dyeing, and/or lightening of keratin fibers using said compositions and compartmentalized devices comprising said compositions. The compositions disclosed herein may make it possible to obtain a long-lasting dyeing effect, while limiting the degradation of the keratin fibers.

Abstract: The invention relates to a dye composition comprising a thiol/disulfide fluorescent dye comprising a heterocycle, and to a dyeing process which has a lightening effect on keratin materials, in particular keratin fibers, especially human keratin fibers such as the hair, using said composition. It similarly relates to novel thiol/disulfide fluorescent dyes and to uses thereof in lightening keratin materials. This composition makes it possible to obtain a particularly resistant and visible lightening effect on dark keratin fibers.

Abstract: The invention relates to a method of dyeing and lightening keratin materials in the presence of a reducing agent, comprising applying to keratin materials, a dyeing composition comprising a fluorescent disulfide dye and simultaneously applying to the keratin materials at least one reducing agent.

Abstract: The present invention relates to the dyeing of keratin materials using two colorless dye precursors, at least one of which contains a disulfide/thiol unit, said precursors reacting together chemically to form the color in situ. The process according to the invention makes it possible in the context of certain variants to solve the problems caused by the color generated during the process, while at the same time not degrading the efficacy of the coloration, and especially of the lightening effect. The colorations obtained are moreover powerful, chromatic, sparingly selective, and fast with respect to external agents such as sunlight, perspiration and especially shampoo.

Abstract: A method for permanently modifying a color of keratinous fibres which comprises the steps of: first providing a mixture of three compositions A, B and C, wherein said composition A comprises at least a reducing agent and optionally a coloring compound, said composition B comprises at least an alkalizing compound and said composition C comprises at least an oxidizing compound; applying said mixture to keratinous fibres for a suitable period of time for modifying the color of said keratinous fibres; and removing said mixture from said keratinous fibres.

Abstract: Disclosed are mixtures of sulfide dyes and dyeing compositions comprising mixtures of sulfide dyes. The dye mixtures are useful for the dyeing of organic materials, such as keratin fibers, preferably human hair.

Abstract: Disclosed are composition and method for dyeing keratin-containing fibers comprising or utilizing styryl sulfide dyes of formula (1), their salts, isomers, hydrates and other solvates, wherein R1, R?1, R2, R?2, R3, R?3, W1, W?1, W2, W?2, W3, W?3, W4, W?4, Q, Q?, Y1 and Y2 are defined in claims and disclosure.

Abstract: A method for permanently modifying a color of keratinous fibers which comprises the steps of:—first providing a mixture of three compositions A, B and C, wherein said composition A comprises at least a reducing agent and optionally a coloring compound, said composition B comprises at least an alkalizing compound and said composition C comprises at least an oxidizing compound:—applying said mixture to keratinous fibers for a suitable period of time for modifying the color of said keratinous fibres: and—removing said mixture from said keratinous fibers.

Abstract: Disclosed are triarylmethane dye compounds of formula (2) wherein R8 is C1-C12alkyl, C1-C12alkoxy, phenyl, hydroxy, halogen, sulfonic acid, carboxylate, or the radical —NR6R7 or —OR8; B1 and B2, independently from each other are C6-C10aryl; or a 5-7-membered heterocyclic compound, which may be substituted by C1-C12alkyl, C1-C12alkoxy, phenyl, hydroxy, halogen, sulfonic acid, carboxylate, or by the radical —NR6R7 or —OR6; and R6 and R7 independently from each other are hydrogen; or C1-C12alkyl, which may be substituted by hydroxy or C6-C10aryl.

Abstract: Disclosed herein is a dyeing composition comprising a particular disulphide dye and a method of dyeing human keratin fibers, such as hair, using this composition. This composition makes it possible to obtain particularly fast chromatic colorations.

Abstract: Formula (I) wherein R1 and R2 each independently from each other are a residue of an organic dye: Y1 and Y2 each independently from each other are unsubstituted or substituted, straightchain or branched, interrupted or uninterrupted —C1-C10alkylene-; —C5-C10cycloalkylene-; C5-C10arylene; or —C5-C10arylene-(C1-C10alkylene)-; Z1 and Z2 independently from each other are Formula (II) are each independently from each other hydrogen; or unsubstituted or substituted, straight-chain or branched, mono-cyclic or polycyclic, interrupted or uninterrupted C1-C14alkyl; C2-C14alkenyl; C6-C10aryl; C6-C10aryl-C1-C10alkyl; or C5-C10alkyl(C5-C10aryl); r, q and n independently from each other are 0 or 1, if n is 0, Z3 is hydrogen; and if n is 1, Z3 is —S—: with the proviso that the method does not comprise treating the fiber with an enzyme of the type of a protein disulfidisomerase (EC 5.3.4.1).

Abstract: A hair coloring composition or kit of parts comprises: a compound which is capable of acting as a substrate for endogenous transglutaminase in and/or on hair and which comprises a chromophore that is capable of absorbing and/or emitting light in the visible part of the electromagnetic spectrum; and a reducing agent. The composition may be used to coloring hair.

Abstract: A method of coloring hair comprises: treating hair with an oxidizing agent; and applying to the hair either during or after treatment with the oxidizing agent a composition comprising a compound which is capable of acting as a substrate for endogenous transglutaminase in and/or on the hair and which comprises a chromophore that is capable of absorbing and/or emitting light in the visible part of the electromagnetic spectrum. Products for use in the method comprise the oxidizing agent packaged separately from the compound.

Abstract: A method of colouring porous material, especially human hair, is described, which method comprises applying to the material being coloured, in any desired order successively, or simultaneously, a) a capped diazonium compound and b) a water-soluble coupling component under conditions such that, initially, coupling does not take place, and then causing the capped diazonium compound present on the material to react with the coupling component.

Abstract: A method for coloring hair and removing the color from the hair when desired, comprising coloring the hair with an aqueous hair color composition comprising, in combination: (i) a reducing agent capable of reducing the —S—S— bonds on the hair fiber surface to form reactive —SH groups; and (ii) a dye molecule containing chemical groups reactive with the —SH groups on the hair fiber surface to form —S—S— bonds between the dye molecule and the hair fiber surface when the hair color composition is applied to the hair at ambient conditions; wearing the colored hair for the desired period of time; and then removing the color from the hair by contacting the hair with an aqueous based color removal composition containing a reducing agent capable of disrupting the —S—S— bonds between the dye molecule and the hair fiber surface to cause the dye molecule to become disassociated from the hair fiber; and a method for removing dye bonded to the hair fibers v

Abstract: Compositions, optionally heat-activated, methods and kits for lanthionizing keratinous fibers to achieve relaxation of the keratinous fibers comprising applying to keratinous fibers a composition comprising at least one hydroxide compound and at least one oxidizing agent.

Abstract: Compositions, optionally heat-activated, methods and kits for lanthionizing keratinous fibers to achieve relaxation of said keratinous fibers comprising applying to keratinous fibers a composition comprising at least one hydroxide compound and at least one reducing agent chosen from thiols, sulfites, and derivatives thereof, and heating the keratinous fibers.

Abstract: A coloring system for hair and/or skin comprises at least three separately packaged components:

Abstract: The invention concerns a method for treating hair keratin fibers to provide them with new appropriate properties, comprising the following steps: reducing the sulphur bonds of hair keratin to generate only at the surface of the fibers at a depth less than 10 &mgr;m. reactive sites and in fixing covalently on said reactive sites at least one active compound for providing the hair keratin fibers with new appropriate properties, said active compound containing at least a reactive function capable of reacting with said reactive sites formed at the keratin fiber surface. This method is applicable to the treatment of fibrous or non-fibrous keratin substances of human or animal origin.

Abstract: A multicomponent kit for coloring and later removing color from fibers is described, which consists of a first component and a second component. The first component includes a composition for oxidative dyeing of hair and the second component includes an aqueous or aqueous-alcoholic composition for reductive removal of color from dyed hair. The composition for reductive removal of color from hair has a pH of from 1.8 to 6 and is in the form of a gel, cream, emulsion, foam or solution. It contains from 1 to 50% by weight of one or more reductones, advantageously ascorbic and/or isoascorbic acid or salts thereof, and, in addition to the reductones, from 0.1 to 10% by weight of one or more thiols or a combination of from 0.1 to 10% by weight of one or more thiols and from 0.001 to 5% by weight of one or more sulfites. It also includes one or more pH adjusting agents and standard cosmetic additive ingredients.

Abstract: The method for decolorizing fibers includes applying a decolorizing composition according to the invention to dyed fibers and allowing the composition to act on the fibers for a sufficient time to remove dyed color from the dyed fibers. The decolorizing composition for fibers dyed with an oxidation hair dye composition and/or direct-dyeing hair dye compounds contains a combination of one or more .alpha.-oxo-carboxylic acids and/or physiologically compatible .alpha.-oxocarboxylic acid salts with at least one reductone, or with at least one reductone and at least one thiol compound, or with at least one reductone and at least one sulfite compound, or with at least one reductone and at least one thiol compound and at least one sulfite compound. A multi-part kit for repeatedly dyeing and subsequently decolorizing fibers, especially human hair, contains both a dye composition for dyeing the fibers and the above-described composition for reductive decolorizing of the dyed fibers.

Abstract: A hair brightening process and aqueous hair brightening compositions therefor are disclosed effective for removing discolorations from hair which is undesirably discolored due to chemical processes and environmental exposure or natural aging to provide a substantially more natural tone. The hair brightening compositions of the invention comprise certain hair brightening activating salts and organic colorants as active brightening ingredients which surprisingly remove discoloration without imparting an unnatural tone to the hair. The inventive hair brightening compositions provide a significant improvement over conventional prior-art hydrogen peroxide-based hair brightening compositions in effectiveness, are less damaging to the hair, and more varied in their useful product forms. The invention is also directed to compositions and methods for alkali relaxing and brightening hair, especially naturally gray hair, and single-use kits comprising the inventive hair brightener compositions.

Abstract: A method for the same-day permanent waving and coloring of hair ("same-day" meaning during a twenty-four hour period and preferably during a single session of only a few hours), which can provide to the hair improved shape retention, color receptivity, color stability, color retention, color evenness, color depth, shine, strength, softness, luster, and/or elasticity. After initial preparation (shampooing, treating with a pre-wrap, and placing on rods if the hair is to be curled), the hair is processed using a waving agent (e.g., thioglycolate), the excess is preferably removed, contacted with a first composition, the excess preferably removed, optionally but preferably contacted with a second composition, heated to dry the hair, and then contacted with a coloring composition containing an oxidative colorant and an oxidizing agent, the oxidizing agent helping develop the color and rebond the hair. The first and second compositions each contain a biologically acceptable metal (preferably a polyvalent metal, e.

Abstract: The present invention concerns improved processes for dyeing keratinous fibers especially hair on the human scalp using a two-step oxidation process for the oxidation of the melanin precursors 5,6-dihydroxyindoline (DHIN), 5,6-dihydroxyindole (DHI), and derivatives thereof such as 5,6-dihydroxyindole-2-carboxylic acid (DHICA).

Abstract: By intermixing a gelling agent, water, a mercaptan-based reducing agent, and a certified dye designated as an F,D&C dye and/or a D&C dye, a highly effective, easily employed permanent dye/gel composition is obtained which imparts a desired color into both natural and synthetic fibers. In the preferred embodiment, the mercaptan-based reducing agent is added to the composition immediately prior to applying the permanent dye/gel composition to the fibers. By merely rubbing, or embrocating the permanent dye/gel composition into the natural or synthetic fibers, the desired color is permanently embedded into the fibers in a long-lasting durable manner. In view of the constituents employed in this permanent dye/gel composition, use as a permanent hair dye is highly effective.

Abstract: Simultaneous permanent waving and dyeing of hair fibers is attained by incorporating a silk amino acid and a water soluble or emulsifiable silicone based compound in the permanent waving lotion and intermixing the dyestuff with the oxidizing or neutralizing composition. Preferably, the combined dyeing and neutralizing composition is adjusted to have a pH ranging between about 7 and 9. In this preferred embodiment, the hair is warmed after receiving the combined dyeing and neutralizing composition with said composition preferably being processed on the hair at a temperature ranging between 40.degree. C. and 65.degree. C. In addition, further enhanced coloring and permanent waving is attained by incorporating a lipotropic material into the dye additive composition.

Abstract: The composition for the oxidative dyeing of hair contains at least one coupler substance of the formula ##STR1## where R is a straight-chain or branched C.sub.1 - to C.sub.4 -alkyl group and X is fluorine or bromine, and new 5-halogen-2,4-diaminoalkylbenzenes.The coupler substances of formula (I) are obtainable by simple chemical reactions, easily soluble in water and have a good shelf stability particularly as constituents of the hair dye composition described here.In addition to the multitude of color shades, the dye results which can be achieved with the hair dye composition according to the invention are distinguished particularly by the intensity of color of the red tones and good uniformity of color of the blue tones.

Abstract: By combining a fluoroscein-based dye with a mercaptan based permanent waving composition and maintaining the pH of the resulting composition between about 2.5 and 4.5, a composition is achieved which simultaneously colors and permanently waves the hair. In addition, even if no coloring or dying of the hair is desired, the use of a colorless or complimentary fluoroscein-based dye with the mercaptan based permanent waving composition achieves a composition which imparts a substantially improved curl configuration to the hair as well as substantially longer lasting curls. Preferably, the mercaptan based permanent waving composition employed comprises an ester of either thioglycolic acid, thiolactic acid, or the amide of 2-aminoethanethiol.

Abstract: A hair dye composition comprising the following three components (A), (B) and (C):(A) one or more cysteine derivatives selected from among a compound represented by the following general formula (I): ##STR1## wherein R.sub.1 represents a hydrogen atom or an acyl or alkyl group carrying one to three carbon atoms,and glutathione, or a salt thereof;(B) an aromatic alcohol and/or a compound represented by the following general formula (II):R.sub.2 -OCH.sub.2 CH.sub.2 OCH.sub.2 CH.sub.2 OH (II)wherein R.sub.2 represents an alkyl group carrying one to five carbon atoms; and(C) a dye.

Abstract: By combining a fluoroscein-based dye with a mercaptan based permanent waving composition and maintaining the pH of the resulting composition between about 2.5 and 4.5, a composition is achieved which simultaneously colors and permanently waves the hair. In addition, even if no coloring or dyeing of the hair is desired, the use of a colorless or complimentary fluoroscein-based dye with the mercaptan based permanent waving composition achieves a composition which imparts a substantially improved curl configuration to the hair as well as substantially longer lasting curls. Preferably, the mercaptan based permanent waving composition employed comprises an ester of either thioglycolic acid, thiolactic acid, or the amide of 2-aminoethanethiol.

Abstract: Disclosed is a hair-dyeing composition comprising geraniintannin and a water-soluble iron salt and optionally containing one or more selected from tannic acid, L-cysteine and salts thereof, sodium hydrogen sulfite, sodium sulfite, hydrolyzed product of collagen and resins for hair. The composition may be in the form of either a one-solution-type or a two-solution-type. Also disclosed is a hair-dyeing method using the said composition. The hair dyed with the composition has an almost natural and fast black color.

Abstract: Process for the simultaneous dyeing and permanent shaping of white and gray hair, in which the hair is first treated with a shaping composition, then rinsed with water and treated with a fixing composition, characterized in that a shaping composition is used which comprises a content of at least one red-violet dyeing xanthene dyestuff and a fixing composition with a content of at least one blue dyeing anthraquinone dyestuff. The process, according to the invention, offers the advantage that the unwanted yellow shade in white and gray hair is permanently removed during the hair shaping treatment without an additional dyeing treatment.