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: A single composition for simultaneous coloring and highlighting hair to provide hair fibers having variations in tonality and hue, comprising, 1-10% inorganic persulfate, 1-20% hydrogen peroxide, 0.001-20% of at least one primary intermediate and, optionally, at least one coupler for the formation of oxidation dyes; and 0.01-20% of one or more surfactants; as well as a one step method for simultaneously color and highlighting hair to provide hair fibers having variations in tonality and hue comprising, combining, immediately prior to use, a powder composition comprised of at least one alkali metal or alkaline earth metal persulfate, an aqueous developer composition comprised of hydrogen peroxide; and an aqueous based colorant composition comprised of at least one primary intermediate and, optionally, at least one coupler for the formation of oxidation dyes; and applying the mixture to the hair for a period of time sufficient to cause coloration and highlighting of the hair.

Abstract: The invention relates to a dye composition for keratin fibers, in particular for human keratin fibers such as the hair, having, in a medium suitable for dyeing, at least one cationic direct dye of given formula, and containing at least one specific cationic or amphoteric substantive polymer. The invention also relates to the dyeing processes and devices using the composition.

Abstract: The invention relates to a dye composition for keratin fibers, in particular for human keratin fibers such as the hair, this composition having, in a medium suitable for dyeing, at least one cationic direct dye of given formula, and containing at least one specific cationic or amphoteric substantive polymer. The invention also relates to the dyeing processes and devices using it.

Abstract: In the method of temporarily coloring and later decoloring hair a hair colorant is applied and allowed to remain on the hair for an exposure time of 10 to 45 minutes at 20 to 50° C. and then rinsed out. Then at a later time, as desired, the hair is decolorized. The aqueous hair colorant contains 0.01 to 5 percent by weight of at least one dye compound of formula (IV), or a physiologically tolerated salt thereof; wherein n=0, 1 or 2 and R1 represents a C1- to C4-alkyl group, a hydroxyethyl group, a dihydroxypropyl group, a methoxyethyl group, a carboxyethyl group, a C1- to C4-sulfoalkyl group, an unsubstituted or substituted phenyl radical with halogen, sulfonic or carboxylic acid substituents; R2 represents a hydrogen, a methyl group, a carboxylic acid group, a carboxylic acid group esterified with a C1- to C4-alcohol or a carboxamido group; and Y represents an aromatic five-membered heterocyclic ring, which may or may not be benzoanellated.

Abstract: The invention relates to a direct dye composition for keratin fibers, in particular for human keratin fibers such as the hair, comprising, in a medium which is suitable for dyeing and which is free of oxidases or oxidoreductases, at least one cationic direct dye of given formula and at least one specific polyol and/or polyol ether. Subjects of the invention are also the dyeing processes and devices/kits using the said composition.

Abstract: The present invention relates to anhydrous compositions for bleaching keratin fibers, in particular human keratin fibers, containing at least one alkaline agent, at least one peroxygenated salt, at least one water-soluble thickening polymer, and at least one nonionic amphiphilic polymer including at least one fatty chain, to the use of these compositions to prepare ready-to-use bleaching compositions by mixing with an aqueous hydrogen peroxide composition, and to a process for bleaching the hair using these anhydrous compositions.

Abstract: The invention relates to a dye composition for keratin fibers, in particular for human keratin fibers such as the hair, this composition having, in a medium suitable for dyeing, at least one cationic direct dye of given formula, and containing at least one specific cationic or amphoteric substantive polymer. The invention also relates to the dyeing processes and devices using it.

Abstract: The invention relates to a dye composition for keratin fibers, in particular for human keratin fibers such as the hair, comprising at least one cationic direct dye of given formula and at least glycerol and/or one specific polyol and/or polyol ether. The invention also relates to the dyeing processes and devices using this composition.

Abstract: A dye composition for keratin fibres comprising, at least one direct dye to be mixed at the time of use, at a basic pH, with an oxidizing agent, and characterized in that it has a basic pH and in that it contains, as direct dye, at least one dye containing an optionally delocalizable quaternized nitrogen atom and a -Z=N- bond in which Z denotes a nitrogen atom or a -CH- radical. The use of the composition and the multi-compartment dyeing kits, for the dyeing of keratin fibres, in particular the hair and more particularly human hair, are also discussed.

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: An oxidation dye composition for keratin fibres and in particular for human keratin fibres such as the hair, comprising, in water, at least one oxidation dye precursor and optionally one or more couplers, characterized in that it also comprises a nonionic amphiphilic polymer containing at least one fatty chain and at least one hydrophilic unit, and, therefore the invention also relates to the processes and dyeing devices using the oxidation dye composition.

Abstract: The method for temporarily coloring and later decolorizing hair includes applying a colorant to the hair, which contains a monomethine or polymethine dye of formula (Ia/Ib), or a salt thereof, W=L−V′(Ia)&rlarr2;W′−L=V (Ib), wherein W=L−V′ and W′=L−V are tautomers, W and V are each a substituted five-member or six-member heterocyclic ring, each of which is a substituted pyrazolone, substituted pyridone, substituted dioxothiazoline, substituted rhodanine, substituted dioxoimidazolidine or substituted barbituric acid; wherein L represents —[—CH═CH—]m—CR═[═CH—CH═]n═ and R is hydrogen, a phenyl group, a halogen atom, a methyl group or a carboxamido group, and wherein m and n are each 0, 1 or 2, but n+m≦2; then allowing the colorant to act for from 10 to 45 min at 20 to 50° C.

Abstract: Cosmetic composition based on nonionic surfactants and cationic or amphoteric substantive polymers and its use as a dyeing or bleaching vehicle. The invention relates to a cosmetic composition containing, in a cosmetically acceptable medium: a) 14 to 50% of a mixture of nonionic surfactants chosen from oxyethylenated and/or oxypropylenated and/or polyglycerolated fatty alcohols which are linear or branched, the mixture comprising at least one surfactant A whose HLB in the sense used by Griffin is not less than 14, present at a weight concentration [A], and a nonionic surfactant B whose HLB value in the sense used by Griffin is not less than 1 and is less than 10, present in a weight quantity [B], more than one half of the nonionic surfactants present satisfying the inequality: 0.5≦R≦1.

Abstract: A hair bleaching composition comprising:

Abstract: An oxidation dye composition for keratin fibers, and in particular for human keratin fibers such as the hair, comprising, in a medium which is suitable for dyeing, at least one oxidation dye precursor and optionally one or more couplers, characterized in that it also comprises a nonionic amphiphilic polymer containing at least one fatty chain and at least one hydrophilic unit, and the invention also relates to the processes and dyeing devices using the said oxidation dye composition.

Abstract: Inorganic peroxymonosulfate salts used as oxidizing agents for the oxidative dyeing of hair.

Abstract: The present invention provides a hair treatment composition (I) comprising the following components (a) and (b), or a hair treatment composition (II) comprising the following components (c) and (b), and a method for imparting elasticity to the hair using the composition: (a) an organic solvent; (b) at least one aromatic sulfonic acid selected from naphthalenesulfonic acids, azulenesulfonic acids, tetralin-sulfonic acids, indansulfonic acids and benzophenonesulfonic acids or salts thereof; and (c) a reducing agent.

Abstract: Described in the present invention is a hair dyeing method comprising treating the hair with a hair bleaching agent and then, without rinsing off the bleaching agent, with a direct hair dye. The present invention makes it possible to color the hair into a vivid color in a short time.

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: A hair cosmetic composition contains an oxyalkylenized xanthan gum in combination with at least one component selected from an oxidizing agent, a reducing agent, a film-forming polymer, an oxidation dye or an acid dye.

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: The invention relates to a process for the two-step direct dyeing of keratin fibres, comprising bleaching the keratin fibres; and applying to the keratin fibres a dye composition comprising at least one partially dissolved basic direct dye and an aqueous medium, wherein the dye composition is ready to use or results from mixing, at the time of use, at least one pulverulent composition (P) comprising at least one basic direct dye and an aqueous composition (A).

Abstract: Hair coloring compositions comprise a preformed organic peroxyacid oxidizing agent selected from the group consisting of (i) a compound of the formula ##STR1## wherein X is a substituted or unsubstituted C.sub.12 alkyl group, and (ii) a compound of the formula ##STR2## wherein R.sup.1 is selected from the group consisting of alkyl, aryl and alkaryl groups with from 1 to 14 carbon atoms, R.sup.2 is selected from the group consisting of alkylene, arylene and alkarylene groups containing from 1 to 14 carbon atoms, and R.sup.5 is selected from the group consisting of H, alkyl, aryl and alkaryl groups containing 1 to 10 carbon atoms; and at least one oxidative hair coloring agent. The compositions are suitable for coloring human or animal hair and may be provided in a hair coloring kit comprising a single package including two separate bottles.

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: Hair coloring compositions comprise (a) a water-soluble peroxygen oxidizing agent, (b) an organic peroxyacid precursor oxidizing aid, and (c) one or more oxidative hair coloring agents. The compositions may be used in processes for coloring human or animal hair and may be conveniently provided in kits wherein each of the aforementioned components are individually packaged.

Abstract: A method for dyeing keratin fibers such as human hair by applying to the fibers a dye composition, in particular a lightening dye composition, containing, in a medium which is suitable for dyeing, at least one direct dye to be mixed at the time of use, at basic pH, with an oxidizing agent, wherein the dye composition a has a basic pH and contains, as direct dye, at least one dye containing an optionally delocalizable quaternized nitrogen atom and a --Z.dbd.N-- bond in which Z denotes a nitrogen atom or a --CH-- radical. The invention is also directed to a ready-to-use composition and a multi-compartment dyeing device for dyeing keratin fibers.

Abstract: Dyes selected from 4,5-diiminopyrazolines or their 4-ylideneamino-5-aminopyrazole tautomeric forms, a process for their preparation, and their use as direct dyes in dye compositions for keratin fibers, in particular for human keratin fibers. The dyes may also be used in lightening or non-lightening dye compositions for the direct dyeing of keratin fibers, and in dyeing processes using these compositions.

Abstract: Method is provided for reducing the color of dyed hair by contacting the dyed hair with a dilute aqueous composition of ascorbic acid, isoascorbic acid or mixtures and maintaining the contact until the desired reduction is achieved.

Abstract: In accordance with the present invention, there is provided a single-step process and composition of a category-2 hair bleach which can simultaneously lighten the hair up to seven levels, and effectively neutralize any undesirable warmth that accompanies the lightening process. This is achieved by including in the bleach composition disperse dye molecules which the present invention has found to be both, stable in the bleach, and capable of depositing the desired amount of various permanent tones on the hair. These disperse dyes do not stain the scalp of the client or the hands of the hairdresser, but are substantive only to the hair fibers. The dyes fall into the classes of anthraquinones and azo compounds.

Abstract: A water-containing hydrogen peroxide composition having a pH of 2 to 6 for the oxidative dyeing and bleaching of hair. The composition contains an anionic surfactant, hydrogen peroxide, a water-soluble or water-dispersible, thickening polymer or copolymer containing carboxyl or carboxylate groups, and optionally a C.sub.12 -C.sub.18 fatty alcohol ethoxylated with up to 50 moles of ethylene oxide or a hydrogenated castor oil ethoxylated with up to 50 moles of ethylene oxide, and 0.001% to 0.05% by weight of a foam regulator component consisting of polysiloxane containing fine-particle hydrophobicized silica, wherein the content of fine-particle hydrophobicized silica is from 0.5% to 20% by weight, based on the weight of the foam regulator component.

Abstract: Disclosed are hair coloring compositions comprising coloring agent and disaccharide. The coloring agent preferably comprises a first oxidizing agent for bleaching the hair, a dyeing agent for adding color to the hair and a second oxidizing agent for developing the dyeing agent. Also disclosed are methods for altering the color of hair to a predetermined degree comprising (a) applying to the hair a hair coloring composition, said composition comprising a coloring agent and a disaccharide; (b) allowing said composition to remain in contact with the hair for a time sufficient to achieve the predetermined degree of color alteration; and (c) substantially removing said composition from the hair.

Abstract: A hair fiber having a first color is contacted with a dye having the formula I, formula II, formula III or a mixture thereof whereby the fiber has imparted to it a second color, upon subsequent contact with alkaline peroxide the visual appearance of the first color is restored to the fiber.

Abstract: A hair dyeing process which comprises of steps of contacting the hair to be dyed with an aqueous solution of a metal salt that promotes melanogenses in air. Before or after the aforementioned step contacting the hair with a solution of 5,6-dihydroxyindole, rinsing the hair between the two contacting steps, maintaining the contact with the second-used solution until a desired darker color is obtained, rinsing or shampooing the hair, then contacting the hair with a solution of hydrogen peroxide until the desired color shade is obtained, and then again rinsing the hair.

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: A mixture for the oxidative dyeing of human or animal hair, which is prepared immediately before application by mixing an oxidant and a dye base in cream, gel or powder form containing at least one oxidative dye and adjusting to a pH in the range of 8.0 to 10.5.The means contains in the freshly-prepared state a microencapsulated, acid-reacting compound in an amount which shifts the pH of the dye into the weakly alkaline (pH.ltoreq.8), neutral or acid range.The encapsulating material for the acid-reacting compound is soluble in the alkaline dye or changeable at least in its strength properties in the sense of a weakening, the wall thickness of the microcapsules being so adjusted that the walls are dissolved or weakened within a period between 10 and 60 minutes to such an extent that the acid-reacting compound is able by itself or upon the exertion of an additional mechanical stress to emerge into the dye.Furthermore, the invention relates to the use of the means for the redyeing of dyed hair.

Abstract: Process for dyeing keratin fibres consisting in applying on these fibres a composition (A) containing at least one indole colorant of formula: ##STR1## where R.sub.1 =H or C.sub.1 -C.sub.4 alkyl;R.sub.2 and R.sub.3, which may be identical or different, denote H, C.sub.1 -C.sub.4 alkyl, carboxyl or alkoxycarbonyl; or a salt or a precursor of a compound (I), associated, either with iodide ions, or with H.sub.2 O.sub.2 ; application of composition (A) being preceded or followed by the application of a compound (B) which contains, either H.sub.2 O.sub.2 at a pH of 2 to 12 when (A) contains iodide ions, or iodide ions at a pH of 2 to 11 when (A) contains H.sub.2 O.sub.2.This process allows particularly powerful and resistant dyes to be made.

Abstract: In a method for the oxidative dyeing of human or animal hair a hair dyeing agenet is prepared from at least one oxidation dye in creme or gel form, which is adjusted to a pH of 5.9 to 6.9.The preparation is performed with the addition of at least one alkali metal salt or alkaline earth metal salt as catalyst, which is added simultaneously with or immediately after the mixing of the oxidation dye with the oxidizing agent, the amount added being such that it is contained in the treatment-ready hair dyeing agent in proportions between 0.0001 and 1.00 wt.-%, preferably between 0.0004 and 0.001 wt.-%.

Abstract: In a method for the oxidative dyeing of human or animal hair a hair dyeing agent is prepared from at least one oxidation dye in creme or gel form, which is adjusted to a pH of 5.9 to 6.9.The preparation is performed with the addition of at least one metal salt as catalyst, which is added simultaneously with or immediately after the mixing of the oxidation dye with the oxidizing agent, the amount added being such that it is contained in the treatment-ready hair dyeing agent in proportions between 0.001 and 1.00 wt.-%, preferably between 0.0004 and 0.001 wt.-%.The metal salts used as catalyst are preferably selected from the group containing copper(II) chloride, copper(II) sulfate, cobalt chloride, cerium sulfate and vanadium sulfate.

Abstract: The present invention relates to a composition for dyeing keratinic fibres, and human hair in particular, comprising the azo dye of formula: ##STR1## optionally in combination with at least one nitro benzene dye or with at least one aminoanthraquinone dye or with at least one nitro benzene and at least one aminoanthraquinone dye. The azo dye of formula (II) is nonmutagenic, has good solubility properties in the usual dye carriers, and imparts to hair hues which are stable, particularly to washing. The invention also relates to a process for dyeing human hair by direct coloration which comprises applying the dyeing composition defined above onto the hair, leaving it on the hair for 3 to 60 minutes and then rinsing and drying the hair.

Abstract: A quaternized polymer for use as a cosmetic agent, has recurring units of the formula ##STR1## wherein R is lower alkyl or -CH.sub.2 -CH.sub.2 OH;R' is an aliphatic, alicyclic or arylaliphatic radical containing a maximum of 20 carbon atoms, or R and R' together with the nitrogen atom to which they are attached form a heterocycle capable of containing a heteroatom other than nitrogen;A is a divalent group selected from(1) o-, m- or p-xylylidene of the formula ##STR2## wherein x, y and t are whole numbers ranging from 0 to 11 such that the sum (x+y+t) is greater than or equal to 0 and lower than 18, and E and K represent hydrogen or an aliphatic radical having less than 18 carbon atoms,(3) --(CH.sub.2).sub.n --S--(CH.sub.2).sub.n --,(4) --(CH.sub.2).sub.n --O--(CH.sub.2).sub.n --,(5) --(CH.sub.2).sub.n --S--S--(CH.sub.2 (.sub.n --,(6) --(CH.sub.2).sub.n --SO--(CH.sub.2).sub.n --,(7) --(CH.sub.2).sub.n --SO.sub.2 --(CH.sub.2).sub.

Abstract: Tensio-active cyclic polyethers of the general formula: ##STR1## where A refers to a hydrophile block chosen from the amine, ammonium, ammonio alkyl carboxylate, ammonio alkyl sulfonate, amide, sulfonamide, ether, thioether, hydroxyl, ester and acid groupings.These polyethers may be prepared (1) by reaction of alcohol or of undecylenic acid with thioacetic acid, (2) saponification with an alkaline base, (3) reaction of the product obtained in (2) with the tetramer of epichlorohydrin or of epibromohydrin, (4) reaction of mesylate or tosylate of the compound obtained in (3) either (a) with dimethylamine or methylethanolamine, the resulting compound being able to be salified or alkylated, or (b) with the mercapto ethanol or mercapto glycerol; the compounds thereby obtained being then able to be submitted to reactions of polyaddition of ethylene oxide and/or of glycidol oxide.These tensio-active cyclic polyethers are suitable for use in the cosmetic, textile, insecticide and similar industries.