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    • 专利摘要:
    The subject of the invention is (I) a process for dyeing keratin materials, in particular preferably human keratin fibers, such as hair using i) indigestible plant powder (s), ii) the alkali metal or alkaline earth metal (bi) alkali metal carbonate agent is preferably at least one post-treatment, and iii) optionally a chemical oxidizing agent such as hydrogen peroxide or a hydrogen peroxide generating system co-treated with i.alpha. and it being understood that the composition comprising the alkaline agent (s) is at a pH of between 7.5 and 11.5 inclusive; and (II) the use of (iii) alkaline agent (s) to fix the blue color and / or to improve the kinetics of staining of keratin materials stained with indigo.
    公开号:FR3014315A1
    申请号:FR1362227
    申请日:2013-12-06
    公开日:2015-06-12
    发明作者:Patrick Choisy；Emilie Guenault
    申请人:LOreal SA；
    IPC主号:
    专利说明:

    [0001] The invention relates to (I) a process for the coloration of keratin materials, in particular preferably human keratinous fibers such as the hair using i) the indigestible plant powder (s), ii) at least one alkaline agent in post treatment preferably alkali metal or alkali metal (bi) carbonate -terreux and iii) optionally a chemical oxidizing agent such as hydrogen peroxide or hydrogen peroxide generating system co-treated with i) and it being understood that the composition comprising the alkaline agent (s) is a pH of between 7.5 and 11.5 inclusive; and (II) the use of (iii) alkaline agent (s) to fix the blue color and / or to improve the kinetics of staining of keratin materials stained with indigo.
    [0002] Two major modes of staining human keratinous fibers, and in particular the hair, are known. The first, called oxidation or permanent staining, consists in using one or more oxidation dye precursors, more particularly one or more oxidation bases possibly associated with one or more couplers.
    [0003] Usually, oxidation bases are chosen from ortho- or para-phenylenediamines, ortho- or para-aminophenols as well as heterocyclic compounds. These oxidation bases are colorless or weakly colored compounds which, combined with oxidizing products, make it possible to access, by a process of oxidative condensation, colored species which remain trapped inside the fiber.
    [0004] Very often, the shades obtained with these oxidation bases are varied by combining them with one or more couplers, the latter being chosen in particular from aromatic meta-diamines, meta-aminophenols, meta-diphenols and certain heterocyclic compounds, such as indole compounds. The variety of molecules involved in the oxidation bases and couplers allows a rich palette of colors to be obtained. The second mode of staining, called direct or semi-permanent staining, comprises the application of direct dyes which are colored and coloring molecules, having an affinity for the fibers. Given the nature of the molecules used, these remain rather on the surface of the fiber and penetrate relatively little inside the fiber, compared to the small molecules of precursors of oxidation dyes. The main advantages of this type of coloration is not to require an oxidizing agent which limits the degradation of the fibers and not to use dyes having a certain reactivity, thus limiting the risks of intolerance. The first hair dyes were semi-permanent. One of the best-known natural dyes is indigo (see Ullmann's Encyclopedia of Industrial Chemistry, "hair preparation", section 5.2.3, 2006 VViley-VCH Verlag GmbH & Co. KGaA, VVeinheim, 10.1002 / 14356007.a12 571 .pub2). Indigo continues to be used to beautify women by coloring hair, nails, or to color leather, silk and wool fabrics, etc. Indigo [482-89-3] is a blue natural dye and its indirect isubere is red. Their crude formulas are: C16H10N2O2; and their chemical structures are as follows: O- - H 0 NH Indigo Indirubin Depending on the oxidation. on-oxidation, isatin may give indogotin or indirubin. (Maugard et al, 2001). The presence of these two isomers explains the purplish color of indigo. Indigo is derived from indican can be prepared from different plants called indigo-like Indigofera tinctoria, Indigo suffruticosa, Polygonum tinctorium etc (see Kirk-Othmer Encyclopedia of Chemical Technology, updated 17/04 / 2009, D01: 10.1002 / 0471238961.0425051903150618.a01.pub2). Indigestible plants are usually cut and soaked in hot, heated, fermented and air-oxidized water to release the purple-blue indigo (see Rev. 2011, 111, 2537-2561). 2537-2561). Indigo is the result of the hydrolysis and oxidation of the indican (glycosylated precursor). Indigo as a molecule is insoluble in water.
    [0005] The problem is that staining from indigo leaf is difficult because the kinetics of the rise of color in keratinous fibers is very slow. In addition, the coloring process is unstable. Indigo gives a blue color to white hair, and a "cold" color of ash-gray to brown hair. Nevertheless, the staining process from indigo is difficult to master. In the first minutes, the indoxyl is green-yellow, oxidizes in hours in indigo and the optimum blue color is reached usually in one day, then beyond 3 to 4 days the color "turns" to red, unwanted color by users. To remedy the problem of low dye kinetics of indigo, it is known to "dope" the coloration by adding direct dyes generally used in direct dyeing such as nitrobenzene, anthraquinone, nitropyridine, azo, methine, azomethine, xanthene, direct dyes. acridinic, azine or triarylmethane (see for example EP 0 806 199). This option has the disadvantage for users of natural products, or supporters of "natural / organic", that the color is partly made from synthetic dyes.
    [0006] Moreover, the colorations obtained from indigo are not always homogeneous between the root and the tip or from one fiber to another (The Science of Hair Care, C. Bouillon, J. Wilkinson, 2d Ed. , CRC Press, Taylor & Francis Group, Boca Raton, London, pp. 236-241 (2005)). There is therefore a real need to develop coloring processes that make it possible to obtain powerful, esthetic colorations in the hours following application from indigo, while respecting the cosmetics of keratin fibers and which makes it possible in particular to to obtain fast colorings, less aggressive for the hair and at the same time which resist the external agents (light, bad weather, shampoo), which are tenacious and / or homogeneous while remaining powerful and / or chromatic, which does not turn with the time in the red.
    [0007] This object is achieved by the present invention which relates to a method for dyeing keratin materials, in particular preferably human keratinous fibers such as the hair using: - indigestible plant powder (s) i ) which is mixed before use in an aqueous composition A to obtain a composition B, preferably in the form of a poultice; a cosmetic alkaline composition C at a pH of between 7.5 and 11.5 and containing: ii) one or more agent (s) alkaline agent (s) preferably chosen from carbonates and bicarbonates or their mixtures; hydroxides of alkali metals such as sodium or potassium, alkanolamines such as tris hydroxymethyl aminomethane; optionally: iii) hydrogen peroxide or one or more system (s) generator (s) of hydrogen peroxide; and / or iv) one or more metal salt (s); it being understood that: the composition B and the ingredient (s) iii) and / or iv) are applied to the keratinous fibers together with the ingredient i) i.e. in co-treatment; and the composition C is applied to the keratinous fibers after application of the composition B i.e. in post-treatment. The invention also relates to the use of agent (s) alkali (s) ii) as defined below and / or salt (s) metal (s) iv) as (s) that defined (s) ) and / or surfactant (s) y) as defined below, for fixing the blue color of keratin materials, in particular keratinous fibers such as hair, colored from indigo ie limit the evolution of the coloring to red. Preferably, the use of ingredients ii) or iv) and y) to limit the evolution of the red coloration over time and / or to improve the kinetics of the coloration of keratin materials, in particular keratin fibers such as hair, colored from indigo, especially in terms of power and intensity of coloring.
    [0008] The method for dyeing keratin materials according to the invention has the advantage of coloring said materials, especially human keratinous fibers, with results of powerful coloring, chromatic, resistant to washes, perspiration, sebum and light and moreover lasting without their alteration. In addition, the colorations obtained from the process give homogeneous colors from the root to the tip of a fiber (low color selectivity). The treated keratin fibers have a very pleasant cosmetic, their integrity is respected. i) Indigesterous Plant Powder (s) The method of the invention uses as the first ingredient indigestible plant powder (s). As an indigestible plant we can cite many species of the following genera: - Indigofera such as Indigofera tinctoria, Indigo suffruticosa, Indigofera articulata Indigofera arrecta, Indigofera gerardiana, Indigofera argenta, Indigofera indica, Indigofera longiracemosa; - Isatis such as Isatis tinctoria; - Polygonum or Persicaria such as Polygonum tinctorium (Persicaria tinctoria); Wrightia such as Wrightia tinctoria; - Calanthus such as Calanthe veratrifolia; and - Baphicacanthus such as Baphicacanthus cusia. Preferably the indigo plant is of the genus Indigofera and more particularly is Indigofera tinctoria.
    [0009] We can use all or part (especially leaves especially for Indigofera tinctoria) of the indigo plant. The indigestible plant powder can be sieved to obtain particles of upper limit sizes corresponding to the orifices or mesh sizes of the sieve particularly between 35 and 80 mesh (US).
    [0010] According to one particular embodiment of the invention, the particle size of the indigestible plant powder is fine. According to the invention, is more particularly meant a particle size of less than or equal to 500 lm. Preferably, the powder consists of fine particles of size between 50 and 300 μm and more particularly between 10 and 200. It is understood that said indigestible plant particles preferably have a moisture content of between 0 and 10. % by weight, based on the total weight of the powders. According to one particular embodiment of the invention, the indigenous plant powder (s) i) used in the process of the invention is in an aqueous composition A, in an amount of between 10 and 99% by weight, relative to the total weight of composition A, more particularly between 10 and 70% by weight, preferably between 20 and 60% by weight, more preferably between 25 and 50% by weight. Composition A, as well as compositions B and C as defined above, are cosmetic compositions ILe. they are cosmetically acceptable therefore suitable for use for application to keratin materials, especially for application to keratin fibers, such as the hair. Preferably they are aqueous compositions. According to a particular embodiment of the invention, the compositions A or B of the invention may also contain the ingredients iii) hydrogen peroxide or one or more system (s) generator (s) of hydrogen peroxide iv) one or more metal salt (s) as defined below. The composition B used in the process of the invention is derived from the mixture between the plant powder (s) incligofère (s) i) in compact form or not, and an aqueous composition A as defined above and of Preferably, the composition B used in the process of the invention is in the form of a poultice. According to one advantageous variant, the composition B used in the dyeing process further comprises ii) one or more chemical oxidizing agent (s), such as hydrogen peroxide or a generator system. hydrogen peroxide ; and iv) optionally one or more metal salt (s), in particular iron salt; For this purpose i) the indigestible plant powder (s) and optionally iii), iv) as defined previously and / or v) one or more surfactant (s) preferably anionic (s) or nonionic (s) ) is (are) mixed with an aqueous composition A, and preferably mixed with water to obtain a poultice B of creamy and pleasant consistency. When the indigestible plant powder (s) is compact, it is crumbled in the aqueous composition A and preferably the compact composition is crumbled in water. The indole plant (s) powder ratios i) according to the invention and the aqueous composition A and preferably water to obtain the composition B in the form of a poultice, are preferably 1 part. by weight of. i) for 1 part by weight of aqueous composition A and preferably water, oil and other cosmetic adjuvants (1/1) to 1 part by weight of i) for 4 parts by weight of aqueous composition and preferentially water (114), aqueous composition A and preferably water, oil or cosmetic emulsion (1/3). According to another particular embodiment of the invention, composition B comprises, apart from ingredients ii) to y) as defined above, other ingredients of natural origin. During the preparation of the poultice it may be added one or more clays, identical or different. Organic Solvents: The compositions A, B and / or C as defined above may comprise one or more organic solvent (s). As the organic solvent, lower C1-C4 alkanols such as ethanol and isopropanol are preferred; polyols and polyol ethers such as 2-butoxyethanol, propylene glycol, propylene glycol monomethyl ether, diethylene glycol monoethyl ether and monomethyl ether, hexylene glycol, as well as aromatic alcohols such as benzyl alcohol or phenoxyethanol. The organic solvents are present in proportions preferably of between 0.1 and 20% by weight approximately relative to the total weight of the composition in question, and still more preferably between 0.5 and 10% by weight approximately. The compositions A, B and / or C as defined above may comprise one or more oils, which are identical or different. By "oil" is meant a "fat" which is liquid at room temperature (25 ° C), and at atmospheric pressure (760 mm Hg); the viscosity at 25 ° C is preferably less than 1200 cps better less than 500 cps (defined for example from the Newtonian plateau determined using a TA Instruments ARG2 rheometer equipped with a mobile geometry cone plane d a diameter of 60 mm and an angle of 2 degrees over a range of shear stress ranging from 0.1 Pa to 100 Pa) By "fatty substance" is meant an organic compound which is insoluble in water at ordinary temperature ( 25 ° C) and at atmospheric pressure (760 mmHg) (solubility less than 5% and preferably 1% more preferably 0.1%). They have in their structure at least one hydrocarbon chain containing at least 6 carbon atoms or a chain of at least two siloxane groups. In addition, the fatty substances are generally soluble in organic solvents under the same conditions of temperature and pressure, such as, for example, chloroform, dichloromethane, carbon tetrachloride, ethanol, benzene, toluene, tetrahydrofuran ( THF), petrolatum oil or decamethylcyclopentasiloxane. The term "non-silicone oil" means an oil containing no silicon atom (Si) and a "silicone oil" an oil containing at least one silicon atom. More particularly, the oils are chosen from non-silicone oils and in particular hydrocarbons and C6-C16 or more than 16 carbon atoms and in particular alkanes; oils of animal origin; triglyceride oils of vegetable origin; essential oils ; glycerides or fluorinated oils of synthetic origin, fatty alcohols; esters of fatty acids and / or fatty alcohol different from triglycerides, fatty acid amides and silicone oils. Preferably, the oils are not oxyalkylenated or glycerolated ethers.
    [0011] Preferably, the oils do not comprise a C 2 -C 3 oxyalkylenated unit or a glycerolated unit.
    [0012] Preferably, the oils are not fatty acids which in salified form give water-soluble soaps. The oils that can be used as the second ingredient b) in the composition A or B according to the invention can be silicones.
    [0013] The silicones may be volatile or non-volatile, cyclic, linear or branched, modified or otherwise with organic groups, having a viscosity of 5 × 10 -6 to 2.5 m 2 / s at 25 ° C. and preferably 1 × 10 -5 to 1 m 2 / s. Preferably, the silicone is chosen from polydialkylsiloxanes, in particular polydimethylsiloxanes (PDMS), and organomodified polysiloxanes comprising at least one functional group chosen from poly (oxyalkylene) groups, amino groups and alkoxy groups. Organopolysiloxanes are further defined in Walter Noll's "Chemistry and Technology of Silicones" (1968), Academie Press. They can be volatile or nonvolatile.
    [0014] When they are volatile, the silicones are more particularly chosen from those having a boiling point of between 60 ° C. and 260 ° C., and even more particularly from: (i) cyclic polydialkylsiloxanes containing from 3 to 7, preferably from 4 to 5 silicon atoms. It is, for example, octamethylcyclotetrasiloxane sold in particular under the name VOLATILE SILICONE® 7207 by UNION CARBIDE or SILBIONE® 70045 V2 by RHODIA, decamethylcyclopentasiloxane marketed under the name VOLATILE SILICONE® 7158 by UNION CARBIDE, and SILBIONE ® 70045 V5 by RHODIA, as well as their mixtures. Mention may also be made of cyclocopolymers of the dimethylsiloxane / methylalkylsiloxane type, such as the VOLATILE® SILICONE FZ 3109 marketed by UNION CARBIDE, of formula: ## STR1 ## with D "- - Si - The cyclic polydialkylsiloxane mixtures with organic compounds derived from silicon, such as the mixture of octamethylcyclotetrasiloxane and tetramethylsilylpentaerythritol (50/50), and the mixture of octamethylcyclotetrasiloxane and oxy-1,1 '- (hexa-2,2,2', 2 ', 3,3'-trimethylsilyloxy) bis-neopentane; (ii) linear volatile polydialkylsiloxanes having 2 to 9 silicon atoms and having a viscosity less than or equal to 5 × 10 -6 m 2 / s at 25 ° C. It is, for example, decamethyltetrasiloxane marketed in particular under the name "SH 200" by Toray Silicone, silicones entering this class are also described in article published in Cosmetics and Toiletries, Vol. 91, Jan. 76, p. 27-32 - TODD & BYERS "Volatile Silicone fluids for cosmetics". Non-volatile polydialkylsiloxanes, polydialkylsiloxane gums and resins, polyorganosiloxanes modified with the above organofunctional groups and mixtures thereof are preferably used. These silicones are more particularly chosen from polydialkylsiloxanes, among which may be mentioned mainly polydimethylsiloxanes with trimethylsilyl end groups. The viscosity of the silicones is measured at 25 ° C. according to ASTM 445 Appendix C.
    [0015] Among these polydialkylsiloxanes, mention may be made, without limitation, of the following commercial products: SILBIONE® oils of the 47 and 70 047 series or the MIRASIL® oils marketed by RHODIA, such as, for example, the 70 047 V 500 000 oil; the oils of the MIRASIL® series marketed by RHODIA; the oils of the 200 series of Dow Corning, such as DC200 having a viscosity of 60,000 mm 2 / s; - VISCASIL® oils from GENERAL ELECTRIC and some oils from SF series (SF 96, SF 18) from GENERAL ELECTRIC. Mention may also be made of polydimethylsiloxanes with dimethylsilanol end groups known under the name of dimethiconol (CTFA), such as the oils of the 48 series from the company RHODIA. The compositions A, B and / or C as defined above may comprise one or more oils, chosen from fatty alcohols, fatty acid amides and fatty acid esters in the form of oils. It is recalled that for the purposes of the invention, the alcohols, esters and fatty acids more particularly have at least one hydrocarbon group, linear or branched, saturated or unsaturated, comprising 6 to 30 carbon atoms, which is optionally substituted, in particular by one or more hydroxyl groups (in particular 1 to 4). If unsaturated, these compounds may comprise one to three conjugated or unconjugated carbon-carbon double bonds. More precisely, these may represent a C 1 -C 10 alcohol and C 6 -C 30 fatty acid ester such as RC (O) -OR 'with R representing a linear or branched C6-C30 alkyl group, linear or branched C6-C30 alkenyl, comprising one or two unsaturations, and R representing a C1-C10 alkyl group, linear or branched. Preferentially, R represents a linear C10-C20 alkyl group and R 'represents a preferably branched C1-C6 alkyl group such as isopropyl myristate. According to another advantageous variant, ingredient ii) represents one or more C 6 -C 30 fatty acid amides and C 1 -C 10 primary or secondary amine amides, preferably of primary amine, such as those of formula R "- C (O) -N (Ra) -R "with R" represents a linear or branched C6-C30 alkyl group, linear or branched C6-C30 alkenyl, comprising one or two unsaturations, which may be substituted by one or several hydroxy groups, or (di) (C1-C6) (alkyl) amino, and R "'represents a linear or branched C1-C10 alkyl group, Ra represents a hydrogen atom or an alkyl group as defined for R "" Preferably R "represents a C14-C20 alkenyl group, Ra represents a hydrogen atom and R" 'represents a C1-C6 alkyl group optionally substituted with (di) (C1-C4) (alkyl) amino such as oleylamidopropyl dimethyl amine With respect to the C 6 -C 16 alkanes, the latter are linear, branched, optionally cyclic. for example, there may be mentioned hexane, dodecane, isoparaffins such as isohexadecane, isodecane. The linear or branched hydrocarbons having more than 16 carbon atoms may be chosen from liquid paraffins, petroleum jelly, liquid petroleum jelly, polydecenes and hydrogenated polyisobutene such as Parleam®. Among the animal oils there may be mentioned perhydrosqualene. Among triglycerides of plant or synthetic origin, mention may be made of liquid triglycerides of fatty acids containing from 6 to 30 carbon atoms, for instance triglycerides of heptanoic or octanoic acids or else, for example, sunflower, corn, soya, squash, grape seed, sesame, hazelnut, apricot, macadamia, arara, sunflower, castor oil, avocado, caprylic / capric acid triglycerides as sold by the company Stearineries Dubois or those sold under the names Miglyol® 810, 812 and 818 by the company Dynamit Nobel, jojoba oil, shea butter oil. Among the fluorinated oils, mention may be made of perfluoromethylcyclopentane and perfluoro-1,3-dimethylcyclohexane, sold under the names "FLUTEC® PC1" and "FLUTEC® PC3" by BNFL Fluorochemicals; perfluoro-1,2-dimethylcyclobutane; perfluoroalkanes such as dodecafluoropentane and tetradecafluorohexane, sold under the names "PF 5050®" and "PF 5060®" by the company 3M, or bromoperfluorooctyl sold under the name "Foralkyl®" by the company Atochem; nonafluoro-methoxybutane and nonafluoroethoxyisobutane; perfluoromorpholine derivatives, such as 4-trifluoromethyl perfluoromorpholine sold under the name "PF 5052®" by the company 3M.
    [0016] Among the essential oils contained in the composition of the invention, or may include those mentioned in Ullmann's Encyclopedia of Industrial Chemistry ("Flavors and Fragrances", Karl-Georg Fahlbusch et al., Published Online: JAN 15, 2003, D01: 10.1002 / 14356007.a11_141). Preferably, the oil or oils of the invention are non-silicone. The term "non-silicone oil" means an oil containing no silicon atom (Si) and a "silicone oil" an oil containing at least one silicon atom. According to a preferred variant of the invention, the oil or oils are chosen from C 6 -C 16 alkanes, polydecenes, liquid fatty acid and / or fatty alcohol esters, liquid fatty alcohols or mixtures thereof.
    [0017] More preferably, the oils are chosen from liquid petroleum jelly and alkanes from 06-016, polydecenes.
    [0018] In this variant preferably, the oil or oils are chosen from mineral oils such as petroleum jelly. According to another particularly preferred embodiment of the invention, the oils are chosen from oils of natural origin, more particularly oils of vegetable origin preferentially chosen from jojoba, babassu, sunflower, olive and nut oils. coconut, brazil nuts, marula, maize, argan, soya, squash, grape seed, flax, sesame, hazelnut, apricot, macadamia, arara, coriander, almond, castor oil, avocado, shea butter oil as well as rapeseed oil, borage, evening primrose, pomegranate, mango, palm, cottonseed and coconut oil; More particularly, compositions A, B and / or C contain one or more oils of plant origin, preferably chosen from avocado oil, olive oil, coconut oil and coconut oil. argan oil and sunflower oil; more preferably, the oil or oils of the invention are chosen from coconut oils. The compositions A, B and / or C used in the process of the invention preferably comprise one or more oils in an amount of between 1 and 80% by weight, more particularly between 2 and 50% by weight, and preferably between 3 and 40% by weight, and more preferably between 5 and 25% by weight relative to the total weight of said compositions.
    [0019] Adjuvants: Compositions A, B and C used in the process of the invention may also contain various adjuvants conventionally used in compositions for dyeing hair, such as mineral or organic thickeners, and in particular thickeners associative anionic, cationic, nonionic and amphoteric polymers, antioxidants, penetrating agents, sequestering agents, perfumes, buffers, dispersing agents, conditioning agents such as, for example, ceramides, film-forming agents, preservatives, opacifying agents and inorganic or organic thickeners such as clays.
    [0020] The adjuvants above are generally present in an amount for each of them between 0.01 and 40% by weight relative to the weight of the composition, preferably between 0.1 and 20% by weight relative to the weight of the composition considered. Of course, one skilled in the art will take care to choose this or these optional additional compounds in such a way that the advantageous properties intrinsically attached to the composition or the poultice useful in the coloring process according to the invention are not, or substantially not, altered by the addition or additions envisaged. The additional dyes: The compositions A or B used in the dyeing process of the invention may also contain one or more additional direct dyes different from the indigestible plant powder (s) i). These direct dyes are, for example, chosen from those conventionally used in direct dyeing, and among which may be mentioned all the aromatic and / or nonaromatic dyes of current use such as neutral, benzene neutral, acidic or cationic direct dyes, direct dyes neutral azo, acidic or cationic, natural direct dyes, quinone direct dyes and in particular neutral, acidic or cationic anthraquinone dyes, direct dyes azine, triarylmethane, indoamine, methines, styrils, porphyrins, metalloporphyrins, phthalocyanines, methine cyanines, and fluorescent dyes. Preferably, compositions A or B used in the process of the invention comprise one or more natural dyes different from indigo i) as defined above. Among the natural direct dyes that may be mentioned are condensed tannins, gallic or ellagic, naphthoquinones (juglone, lawsone), anthraquinones (emodin, alizarin, etc.), isatin, curcumin, spinulosin and polyphenols. flavonoids, isoflavonoids, pterocarpans, neoflavones, orceins ,. These natural dyes can be added as defined compounds, extracts, or parts of plants. Said defined compounds of extracts, or part of plants are preferably in the form of powders, especially fine whose particles have sizes identical to that of the indigo plant powder (s) as defined above. The direct dye (s), natural or not different from the indigestible plant powder (s) i) used in the process of the invention, represents particularly, from 0.001% to 10% by weight of the total weight of the composition and even more preferably from 0.05% to 5% by weight, relative to the total weight of the composition in question. Preferably the composition of the invention does not contain synthetic direct dyes, i.e. which have no natural occurrence. The compositions A or B used in the process of the invention may further comprise one or more oxidation bases and / or one or more couplers conventionally used for dyeing keratinous fibers. Among the oxidation bases, mention may be made of para-phenylenediamines, bisphenylalkylenediamines, para-aminophenols, bis-para-aminophenols, ortho-aminophenols, heterocyclic bases and their addition salts. Among these couplers, it is possible to mention include meta-phenylenediamines, meta-aminophenols, meta-diphenols, naphthalenic couplers, heterocyclic couplers and their addition salts. The oxidation base (s) present in the composition (s) are in general present each in an amount of between 0.001% and 10% by weight relative to the total weight of the dyeing composition (s). Preferably the dyeing process of the invention does not employ oxidation dye. pH of the compositions A and B According to one particular embodiment of the invention, the pH of the aqueous composition A containing the ingredients i), as well as the pH of the aqueous composition B, is neutral ie of pH around 5 (preferably from 3 at 8, better from 4.5 to 7.5). According to one particular embodiment of the invention, composition A and / or B is acidic and preferably has a pH ranging from 2 to 6.5; particularly preferably from 3 to 6, preferably pH = 5. The pH of the composition A and / or B can be adjusted to the desired value by means of the acid or alkaline agent (s) usually used ( s) in the dyeing of keratinous fibers or else using conventional buffer systems, or clays as defined previously present in composition B or in the aqueous composition A.
    [0021] Among the acidic agents used in the compositions of the invention, mention may be made of inorganic or organic acids such as hydrochloric acid, orthophosphoric acid, sulfuric acid, carboxylic acids such as acetic acid and tartaric acid. citric acid, lactic acid, sulfonic acids, preferably the acid is an organic acid such as citric acid.
    [0022] Among the alkaline agents include those ii) below. ii) the alkaline agents and the composition C According to a particular embodiment of the invention the coloring process uses ii) one or more alkaline agents which is applied in post-treatment, ie after the application of the ingredient i) and optionally the ingredient (s) iii) and / or iv). Preferably, the dyeing method of the invention uses one or more agent (s) alkaline (s), organic (s) or mineral (with), preferably mineral (aux). The alkaline agent (s) is (are) preferably chosen from those whose pKb at 25 ° C. is less than 12, and preferably less than 10, and even more advantageously less than 6. It should be noted that this is the pKb corresponding to the highest basicity function. More particularly, the agent (s) alkali (s) ii) is (are) chosen from ammonia, hydroxides of alkali or alkaline earth metals preferably of sodium or potassium buffered with one or more amino acids such as glycine, carbonates, bicarbonates or hydrogencarbonates, carbonates buffered with bicarbonate to obtain a pH <12.0, alkali or alkaline earth metal phosphates such as sodium or post-potassium, alkanolamines such as mono-, di- and triethanolamines, mono-, di- and tri- (hydroxymethyl) aminomethane and Rb NW-N Rd u (I) Formula (I) wherein W is a (C1-C6) alkylene group such as propylene optionally substituted with a hydroxy, amino group or a C1-C4 alkyl radical; Ra, Rb, Rc and Rd, identical or different, represent a hydrogen atom, a C1-C4 alkyl or C1-C4 hydroxyalkyl radical. Examples of amines of formula (I) are 1,3-diaminopropane, 1,3-diaminopropanol, spermine and spermidine. By alkanolamine is meant an organic amine comprising a primary, secondary or tertiary amine function, and one or more linear or branched C 1 -C 8 alkyl groups carrying one or more hydroxyl radicals. In particular, the organic amines chosen from alkanolamines, such as mono-, di- or trialkanolamines, comprising one to three identical or different C 1 -C 4 hydroxyalkyl radicals are suitable in the embodiment of the invention.
    [0023] Among compounds of this type, mention may be made of monoethanolamine (MEA), diethanolamine, triethanolamine, monoisopropanolamine, diisopropanolamine, N, N-dimethylethanolamine, 2-amino-2-methyl-1-propanol and triisopropanolamine. 2-amino-2-methyl-1,3-propanediol, 3-amino-1,2-propanediol, 3-dimethylamino-1,2-propanediol, tris-hydroxymethylamino-methane.
    [0024] More particularly, the amino acids that can be used are of natural or synthetic origin, in their L, D, or racemic form, and comprise at least one acid function chosen more particularly from the carboxylic, sulphonic, phosphonic or phosphoric acid functions. Amino acids can be in neutral or ionic form.
    [0025] As amino acids that may be used in the present invention, mention may in particular be made of aspartic acid, glutamic acid, alanine, arginine, ornithine, citrulline, asparagine, carnitine and cysteine. , glutamine, glycine, histidine, lysine, isoleucine, leucine, methionine, N-phenylalanine, proline, serine, taurine, threonine, tryptophan, tyrosine and valine.
    [0026] Advantageously, the amino acids are basic amino acids comprising an additional amine function optionally included in a ring or in a ureido function. Such basic amino acids are preferably chosen from those corresponding to the following formula (II), as well as their R-CH 2 -CH (NH 2) -C (O) -OH (II) salts. Formula (II) in which R represents a group chosen from: imidazolyl, preferably their derivatives, the amino acids, and the compounds of formula (I) below: Ra imidazolyl; - (CH2) 3 -NH2; - (CH2) 2-NH2; - (CH 2) 2 N (H) -C (O) -NH 2; and - (CH2) 2-N (H) -C (NH) -NH2. The compounds corresponding to formula (II) are histidine, lysine, arginine, ornithine, citrulline. The organic amine may also be chosen from heterocyclic organic amines. In addition to the histidine already mentioned in the amino acids, mention may be made, in particular, of pyridine, piperidine, imidazole, triazole, tetrazole and benzimidazole. The organic amine may also be selected from amino acid dipeptides. As amino acid dipeptides that may be used in the present invention, carnosine, anserin and whale may be mentioned in particular. The organic amine may also be chosen from compounds containing a guanidine function. As amino amines of this type which can be used in the present invention, mention may in addition be made of arginine already mentioned as amino acid, creatine, creatinine, 1,1-dimethylguanidine, 1,1 diethylguanidine, glycocyamine, metformin, agmatine, n-amidinoalanine, 3-guanidinopropionic acid, 4-guanidinobutyric acid and 2 - ([amino (imino) methyl] amino acid) ethane-1-sulfonic acid. As hybrid compounds, mention may be made of the salts of the amines mentioned above with acids such as carbonic acid and hydrochloric acid. According to a particularly advantageous embodiment of the invention the dyeing process uses iii) one or more (bi) carbonates. By (bi) carbonates is meant: a) alkali metal (Met2 +, CO32-), alkaline earth metal (Met2 +, CO32-) ammonium carbonates ((R "4N +) 2, C032-) or of phosphonium ((R "4P +) 2, C032- with Met 'representing an alkaline earth metal and Met representing an alkali metal, and R", which may be identical or different, represent a hydrogen atom, a (C 1 -C 6) group optionally substituted alkyl such as hydroxyethyl), and b) bicarbonates, also called hydrogenocarbonates, of the following formulas: - R '+, HCO3- with R' representing a hydrogen atom, an alkali metal, an ammonium group R "4N + - or phosphonium R "4P + - where R", identical or different, represent a hydrogen atom, an optionally substituted (C1-C6) alkyl group such as hydroxyethyl and when R 'represents a hydrogen atom, the hydrogen carbonate is then called dihydrogen carbonate (O 2, H 2 O); and - Met2 + (1-1CO3) 2 with Met 'representing an alkaline earth metal. There may be mentioned carbonates or hydrogenocarbonates of Na, K, Mg, Ca and mixtures thereof, and in particular Na hydrogen carbonate. These hydrogencarbonates can come from natural water, for example spring water from the Vichy basin, from La Roche Posay, Badoit water (see patent, for example FR 2 814 943). Particularly mention may be made of sodium carbonate [497-19-8] = Na2CO3, sodium hydrogencarbonate or sodium bicarbonate [144-55-8] = NaHCO3, and sodium dihydrogen carbonate = Na (HCO3) 2. More particularly, ii) is chosen from alkali metal or ammonium carbonates, alkali metal or ammonium bicarbonates as well as alkali metal bicarbonates buffered with alkali metal bicarbonates to obtain a pH <12.0, preferably less than or equal to 11.0, more preferentially inclusive of between 8.0 and 11.0. According to another particular embodiment of the invention, the alkaline agents or alkalis II) of the invention are chosen from hydroxides of alkali or alkaline earth metals, preferably of sodium or potassium, such as NaOH buffered with one or more acids. amino acids such as glycine, to obtain a pH <11.5, preferably less than or equal to 11.0, more preferably inclusive of between 8.0 and 11.0, more particularly inclusive of between 9.0 and 10.0 . According to another particular embodiment of the invention, the alkaline agents or alkalis II) of the invention are chosen from alkali metal or alkaline earth metal phosphates such as sodium or post-potassium, alkanolamines such as tri (hydroxymethyl) aminomethane. More preferentially, the alkaline agent (s) ii) in the composition C as defined above are chosen from: NaOH / glycine buffer, 0.5M at pH 10; NaOH / glycine buffer, 0.5M at pH 9; Sodium carbonate / sodium bicarbonate buffer, 0.5M at pH 11; Sodium carbonate / sodium bicarbonate buffer, 0.5M pH 10; Sodium carbonate / sodium bicarbonate buffer, 0.5M pH 9; 0.5 M ammonium bicarbonate, pH 8.5; Potassium bicarbonate, 0.5M, pH 8.4; Sodium bicarbonate, 0.5M, pH 8.2 and the potassium carbonate / potassium bicarbonate buffer, 0.5M pH 9 Preferably the alkaline agent (s) is (are) in an aqueous cosmetic composition C such than previously defined. According to the invention, the alkaline agent (s) used (s) represent (s) preferably from 0.001% to 10% by weight of the total weight of the composition (s) containing the alkaline agent (s) and even more preferably from 0.005% to 5% by weight. PH of the composition C used in post-treatment According to one particular embodiment of the invention, the pH of the aqueous composition C containing the ingredients iii) is basic, ie greater than 7.5 and preferably less than or equal to 11.0. .
    [0027] According to one particular embodiment of the invention, the composition C of the invention has a pH ranging from 8.0 to 10.0 and more preferably ranging from 8.5 to 9.5. According to the invention, the alkaline agent (s) used is (are) in the aqueous composition C at a concentration of between 0.1 M and 1 M, preferably at 0.5 M iii) hydrogen peroxide or system (s) generator (s) of hydrogen peroxide According to a particular embodiment of the invention the dyeing process uses iii) hydrogen peroxide or one or more system (s) generator (s) of hydrogen peroxide. These last (s) being applied in co-treatment with the ingredient i) as defined above. Preferably, the hydrogen peroxide generator system (s) is (are) chosen from: a) urea peroxide; b) polymer complexes which can release hydrogen peroxide, such as polyvinylpyrrolidone / H 2 O 2, in particular being in the form of powders and the other polymer complexes described in US 5,008,093; US 3,376,110; US 5,183,901; c) oxidases producing hydrogen peroxide in the presence of a suitable substrate (for example glucose in the case of glucose oxidase or uric acid with uricase); d) metal peroxides generating hydrogen peroxide in water such as calcium peroxide, magnesium peroxide; e) perborates; and f) percarbonates. According to a preferred embodiment of the invention, the method of this coloration uses iii) one or more hydrogen peroxide generator system (s) chosen from among a) urea peroxide, b) polymeric complexes capable of releasing hydrogen peroxide selected from polyvinylpyrrolidone / H 2 O 2; c) oxidases; e) perborates and f) percarbonates. Particularly iii) represents hydrogen peroxide. According to a particular embodiment of the invention, the method uses ingredient iii) which is in a composition. The composition (s) comprising hydrogen peroxide or the hydrogen peroxide generator system (s) may also contain various adjuvants or oils conventionally used in compositions for dyeing hair as defined above. .
    [0028] According to one particular embodiment of the invention, the hydrogen peroxide or the hydrogen peroxide generator system (s) used is (are) preferably from 0.001% to 12% by weight. expressed in hydrogen peroxide with respect to the total weight of the composition or compositions containing them or, more preferably, from 0.2% to 3% by weight, such as 1%. iv) Metal salts According to a particular embodiment of the invention, the process of the invention uses iv) one or more metal salt (s). According to one particular embodiment of the invention, the metal salt (s) of the invention iv) are used in the dyeing process of the invention in post-treatment, ie after the application of the ingredient i ). According to another particular embodiment of the invention, the metal salt (s) of the invention iv) are used in the dyeing process of the invention in co-treatment ie is iv) is applied at the same time ingredient i), or else it (they) is (are) in the aqueous composition A or else with the ingredient i) as defined previously. Preferably the salt (s) metal (s) is (s) in a poultice B as defined above.
    [0029] The salt (s) metal (s) comprises (s) in their structure one or more metals whose metal atom carries at least one positive or negative charge, preferably positive, and preferably the degree of oxidation is I or II, more preferably II. In particular, the metal salt (s) of the invention is (are) derived from the action between at least one mineral or organic acid on a metal. Thus, the metal salt (s) of the invention may be (organic) or mineral (s). According to one variant, the salt (s) of metal (s) is (are) inorganic (s) and preferably is (are) chosen from halides, carbonates, sulphates and phosphates, hydrated or not. , especially sulphates. According to an advantageous variant, the metal salt or salts comprise, as metal, a metal chosen from transition metals, and rare earth metals, preferably transition metals. Among the transition metals, there may be mentioned manganese, iron, zinc, titanium, zirconium, molybdenum, tungsten, vanadium and among them especially iron. According to another preferred variant, the metal salts comprise a metal of oxidation state I or II, preferably II, and has two ligands derived from (poly) (hydroxy) acid. By "(poly) (hydroxy) acid" is meant any carboxylic acid which comprises a hydrocarbon chain, linear or branched, saturated or unsaturated, preferably saturated and / or linear, comprising from 1 to 10 carbon atoms and from 0 to 9 hydroxy groups, preferably 1 to 4 OH groups, and comprising 1 to 4 carboxyl groups -O (O) -OH, at least one of said -O (0) -OH functional groups is in the form of carboxylate -C (O) Complexed with the metal atom, preferably Fe (II). According to a preferred variant, the metal salt (s) of the invention is (are) organic (s), preferentially it (s) comprises (s) a metal which is complexed by two carboxylate groups corresponding to the formula (III): RC (O) -OMOC (O) -R '(III) as well as its solvates such as hydrates and their enantiomers; Formula (III) in which: - M represents a metal (II) or metal2 + of oxidation state 2, - R and R ', which may be identical or different, represent a (C1-C6) (poly) hydroxyalkyl group.
    [0030] In particular, the metal salt (s) is (are) chosen from organic acid salts of transition metals, in particular iron. The organic metal salts may be more particularly chosen from salts of organic acids such as citrates, lactates, glycolates, gluconates, acetates, propionates, fumarates, oxalates and tartrates, preferably acetates, citrates, and gluconates; especially gluconates. According to another particular embodiment, the method for dyeing keratin materials does not use metal salt (s) or iv mordant (s). According to one particular embodiment of the invention, the metal salt (s) used is (are) preferably from 0.001% to 12% by weight relative to the total weight of the composition or compositions or containing them and even more preferably from 0.2% to 3% by weight such as 1%. y) Surfactants (s) According to a particular embodiment, the dyeing process uses v) one or more surfactants (s). Preferably, the surfactant (s) is (are) chosen from anionic and nonionic surfactants. According to an advantageous variant of the invention, the dyeing process uses one or more surfactant (s) not ionic (s) v). By "nonionic surfactant" is meant an amphiphilic compound which is not capable of dissociating into ion in aqueous solution. More particularly, the dyeing process uses one or more nonionic surfactant (s) chosen from: - alkoxylated derivatives including ethoxylated i) alcohols, ii) alkylphenols, iii) fatty acids, iv ) v) sorbitan esters (spans and tweens), vi) alkoxylated fatty acid amines and vii) ethylene oxide - propylene oxide copolymers (sometimes referred to as polymeric surfactants); multihydroxy surfactants such as glycol esters, surfactants derived from mono and polysaccharides, esters of glycerol (and polyglycerol), esters of glucosides (and polyglucosides) and sucrose, surfactants of oxides of amine, sulfinyl, sulphoxides and phosphines. The alkoxylated surfactants can come from the condensation products of hydrophobic compounds such as alcohols, phenols, mercaptans, amines, carboxylic acids, carbonamides with oligo-glycols ethers, fatty acid esters of (di) glycerol, sugars hydrogenated sugars such as sorbitol, alkyl (poly) glucosides. According to one particular embodiment of the invention, the ingredient y) is chosen from alkoxylated nonionic surfactants which are particularly ethoxylated or glycerolated, or mixtures thereof. More particularly, the nonionic surfactant is chosen from: oxyalkylenated or glycerolated fatty alcohols; alkylphenols whose alkyl chain is C 8 -C 18, oxyalkylenated; oxyalkylenated or glycerolated fatty amides; - oxyalkylenated vegetable oils; - C6-030 esters of sorbitan, optionally oxyalkylenated; esters of sucrose fatty acids, optionally oxyalkylenated; fatty acid esters of polyethylene glycol; - (C6-C30) alkyl polyglycosides; N-alkyl (C6-C30) glucamine derivatives; amine oxides such as (0-10-014) amine oxides or Nacylaminopropylmorpholine oxides; copolymers of ethylene oxide and propylene oxide; - their mixtures. More particularly, the average number of oxyalkylenated units is advantageously between 2 and 150 units. Preferably, it is oxyethylenated units, oxypropylene or mixtures thereof. As regards the glycerolated surfactants, they preferably comprise on average 1 to 20 glycerol groups and in particular 1.5 to 5. According to a particularly advantageous embodiment of the invention, the composition comprises at least one nonionic surfactant. selected from the alcohols in 06-C3o, oxyalkylenated or glycerolated. According to a particularly advantageous embodiment of the invention, the method for dyeing keratin materials uses one or more nonionic surfactant (s) chosen from sorbitan ester (y) sorbitan esters ( spans and tweens). In particular the esters of C6-030 acids of sorbitan, optionally oxyalkylenated, preferably oxyethylenated. More particularly, the process for dyeing keratin materials uses one or more nonionic surfactant (s) chosen from among the C 8 -C 30, preferably C 8 -C 20, fatty acid sorbitan esters. Preferably, the surfactant (s) used in the process of the invention is (are) chosen from compounds of the following formula (IV): HO (IV) as well as its optical isomers and hydrates Formula (IV) wherein: - ALK, identical or different, preferably identical, represent a linear or branched (C 1 -C 6) alkylene group, such as ethylene; - X, Y and Z, identical or different, represent an integer inclusive between 0 and 100, preferably between 0 and 50, more particularly between 0 and 20; it being understood that the sum x + y + z is an integer inclusive of between 1 and 100, preferably between 10 and 50, more particularly between 15 and 30, such as 20; - R represents a linear or branched (C6-C30) alkyl group, preferably (08C30) alkyl, more particularly (C8-C20) alkyl. Oxygenated mono-esters of oxyethylenated sorbitan with a number of moles of ethylene oxide of the ester inclusive between 2 (20E) and 40 (0E), especially between 4 (40E) and 20 (20 OE) are preferably used. ). The preferred sorbitan esters are oxyethylenated (40E) sorbitan monolaurate or polysorbate 21 with w + x + y + z = 4 (TWEEN 21), oxyethylenated sorbitan mono-laurate or polysorbate 20 with w + x + y + z = 20 (TWEEN 20), oxyethylenated (40E) or polysorbate 61 w + x + y + z = 4 (TWEEN 61) sorbitan mono-stearate, oxyethylenated (200E) sorbitan mono-stearate or polysorbate 60 with w + x + y + z = 20 (TWEEN 60 and 65); oxyethylenated (50E) or polysorbate 81 (TWEEN 81) sorbitan mono-oleate; oxyethylenated (200E) sorbitan mono-oleate or polysorbate 80 with w + x + y + z = 20 (TWEEN 80). According to one particular embodiment of the invention, the dyeing method uses one or more nonionic surfactant (s) chosen from sorbitan esters comprising oxyethylenated with a number of moles of oxide of ethylene of the ester ranging from 15 to 30 such as 20 (20 OE). According to another particular embodiment of the invention, the method for dyeing keratin materials uses one or more anionic surfactant (s). The term "anionic surfactant" is understood to mean an amphiphilic compound in which the hydrophobic part bears an anionic hydrophilic group with a generally metallic cationic counter-ion, preferably an alkali metal such as Na or K, or ammonium, the hydrophilic group is therefore polar. and capable of dissociating into anion in aqueous solution. As anionic surfactants are preferred anionic surfactants containing carboxylates, sulphates, sulphonates, sulphoacetates, sulphosuccinates, phosphates, isethionates, sarcosinates, glutamates, lactilates, taurates, fatty acid salts, galactoside uronic salts, and salts of ether acids. caroxylics and mixtures thereof, more preferably sulphates such as alkyl sulphates. More particularly, the anionic surfactant (s) used in the process of the invention is (are) chosen from: - (C6-C30) alkyl sulphates, (C6-C30) alkyl ether sulphates, (C 6 -C 30) alkyl amido ether sulfates, alkyl aryl polyether sulphates, monoglyceride sulphates; - (C6-C30) alkylsulphonates, (C6-C30) alkylamidesulfonates, (C6-C30) alkylsulphonates, α-olefin-sulphonates, paraffin-sulphonates; - (C6-C30) alkyl phosphates; C 6 -C 30 alkylsulfosuccinates, C 6 -C 30 alkylsulfosuccinates, C 6 -C 30 alkylamidesulfosuccinates; - (C6-C30) alkyl sulphoacetates; - acyl (C6-C24) sarcosinates; - acyl (C6-C24) glutamates; - (C6-C30) alkyl polyglycoside carboxylic ethers; (C6-C30) alkyl polyglycoside sulfosuccinates; - (C6-C30) alkylsulphosuccinamates; - acyl (C6-C24) isethionates; N-acyl (C6-C24) taurates; fatty acid salts; the acyl (C 8 -C 20) -lactylates; salts of (C6-C30) alkyl-D galactoside uronic acids; polyoxyalkylenated alkyl (C 6 -C 30) alkyl ether carboxylic acid, polyoxyalkylenated alkyl (O 6 -C 30) aryl ether aryl ether carboxylic acids, polyoxyalkylenated (C 6 -C 30) alkyl amido ether carboxylic acids; and their mixtures, more preferably the (C6-C30) alkyl sulphates, the (C6-C30) alkyl ether sulphates, the (C6-C30) alkyl amido ether sulphates, the alkylaryl polyether sulphates and the monoglyceride sulphates. These anionic surfactants are advantageously in the form of salts in the composition according to the invention, especially alkali metal salts, such as sodium; alkaline earth metals, for example magnesium; ammonium salts; amine salts; of aminoalcohol salts. They could also, depending on the conditions, be in their acid form. It should be noted that the alkyl or acyl radicals of these various compounds preferably comprise from 12 to 20 carbon atoms. Preferably, the aryl radical denotes a phenyl or benzyl group. In addition, the polyoxyalkylenated anionic surfactants preferably comprise from 2 to 50 alkylene oxide groups, in particular ethylene oxide groups.
    [0031] According to a preferred embodiment of the invention, the anionic surfactant (s) is (are) chosen from (C6-C30) alkyl sulphates such as alkali metal or alkaline dodecyl sulphate. earthy, especially sodium dodecyl sulphate (SDS). The latter is sold for example by the SIGMA company.
    [0032] According to a particularly advantageous embodiment, the dyeing method of the invention uses one or more surfactants (s) in co-treatment with i), preferably in composition A or B as defined above, particularly in the form of poultice.
    [0033] According to another advantageous embodiment, the dyeing method of the invention uses one or more surfactants (s) in post-treatment with (ii) or after the application of the composition C, preferably the surfactant (s). are in the composition C as defined above. According to a preferred embodiment of the invention the surfactant (s) v) are in the composition A, B and / or C as defined above in an amount of between 0.001 and 20%, particularly between 0.01 and 10% and more particularly between 0.01 and 1% such as 0.1% by weight relative to the total weight of composition B and / or C. The preferred surfactants are SDS and Tween 20 which can be used in the range of 0.01% to 1% especially to 0.1% relative to the total weight of the composition containing them. Coloring process using i) to y) According to a particular embodiment of the invention, the dyeing method according to the following steps: the first step consists in the preparation of the composition B as defined above, in particular under poultice form as defined previously from indigestible plant powder (s) i), in which is optionally incorporated hydrogen peroxide or one or more system (s) generator (s) of hydrogen peroxide ii) as defined previously and optionally one or more metal salt (s) as defined previously iv) and optionally one or more surfactant (s) v) such ( s) as defined previously; in the second step, the composition B as defined above is applied to the keratinous fibers and is left on the said materials preferably for a minimum of 30 minutes, preferably a time ranging from 30 minutes to 12 hours, preferably from 1 hour at 4 o'clock ; during the third step, the keratinous fibers are rinsed with water until the poultice disappears, preferably without shampooing; - The keratinous fibers may then be either dried or left wet, preferably left wet, it is understood that between the second and the third step is applied to said fibers a composition C comprising one or more agent (s) alkaline (s) as defined above and optionally one or more surfactant (s) as defined previously, preferably this composition comprises one or more (bi) carbonate (s) such (s) ) as defined previously. According to another particular embodiment of the invention the dyeing process is carried out in several steps, the first step consists in the preparation of the composition B of the invention as described above; in the second step, the composition B is left to stand for 30 minutes to 4 hours, preferably 30 minutes to 1 hour, and then the composition B is applied and left on the said fibers, preferably for a minimum of 30 minutes ( preference ranging from minutes to 24 hours, better hour to 12 hours); during the third step, the keratinous fibers are rinsed with water until the poultice disappears, preferably without shampooing; the keratin fibers may then be dried or allowed to dry naturally, without a hair dryer, preferably the keratinous fibers are left wet; The aqueous composition preferably has water, water and an oil, water, an oil and cosolvent and cosmetic additives, mixed with the indigestible plant powder (s) i) used in the first step may be at room temperature, or at a higher temperature. In particular at a temperature ranging from 40 ° C to 98 ° C. According to another embodiment of the invention, the indeterminate plant powder (s) i) is mixed or crumbled with or in an aqueous composition and preferably water at a temperature below 40 ° C, in particular between 10 ° C and 40 ° C.
    [0034] Preferably the ratio by weight of the indeterminate plant powder (s) i) / amount by weight of aqueous composition A, preferably water, is 1/1 to 1/3, preferably 1/2. According to a particularly advantageous process, after the application of the alkaline agent (s) ii) preferably on wet keratinous fibers, said fibers undergo a heat treatment according to a) and b) as defined below or then are after the third step where the keratinous fibers are rinsed with water until disappearance of the composition B, preferably without shampooing; a) is heat-dried with a thermal source (convection, conduction or radiation) by sending for example a hot gas stream such as the air necessary for the evaporation of the solvent (s); as a thermal source are hair dryers, hair helmets, a hair straightener, an infrared dispenser and other conventional heaters. b) the application of ceramic heating tongs from 80 ° C to 220 ° C and more preferably from 120 ° C to 180 ° C; preferably, step b) is preferred. Preferably, the application temperature of composition B varies from room temperature (15 to 25 ° C) to 80 ° C and more particularly from 15 to 45 ° C. It is advantageous, after application of the poultice according to the invention, to subject the hair to heat treatment by heating at a temperature ranging from 30 to 60 ° C. In practice, this operation can be carried out by means of a hairdressing helmet, a hair dryer, an infrared dispenser and other conventional heating devices. In particular, it is possible to use, as a means for heating and smoothing the hair, a heating iron at a temperature ranging from 60 to 230 ° C. and preferably from 120 to 180 ° C. Heat with a heat source (convection, conduction or radiation) by sending for example a hot gas stream such as air necessary for the evaporation of the solvent or solvents; as a thermal source are hair dryers, hair helmets, a hair straightener, an infrared dispenser and other conventional heaters. The application of ceramic heating tongs from 80 ° C. to 220 ° C. and more preferably from 120 ° C. to 180 ° C. may advantageously replace the other techniques in the sense that it is faster. A particular embodiment of the invention relates to a dyeing process which is carried out at room temperature (25 ° C.). EXAMPLES OF COLORING The following compositions have been prepared: The percentages are given by weight relative to 100 g of composition . Compositions B: Compositions B 131 B2 Indigo leaf powder (Indigofera tinctoria) i) 25% 25% Hydrogen peroxide iii) 0.1% Water qs 100 75% 74.9% The described ingredients of i) to v ) are solubilized or dispersed according to the relative amounts described in the table above in hot water (25 to 60 ° C) in a bowl. In another bowl, the indigo powder is added and the contents of the first bowl are added to the indigo powder. The whole is homogenized with a spoon or spatula.
    [0035] The poultice obtained is very creamy, applied extemporaneously on the keratinous fibers, at the rate of 20g of poultice per gram of hair and this by completely impregnating the keratinous fibers from root to tip, at room temperature. The poultice is applied to 90% natural white dry gray hair with a 60-minute break.
    [0036] We rinse the hair thoroughly. On the wet hair, the compositions C are added Compositions C: Compositions C Alkaline agents and pH Cl Buffer NaOH / glycine, 0.5M pH 11 C2 Buffer NaOH / glycine, 0.5M pH 10 C3 Buffer NaOH / glycine, 0, 5M pH 9 C4 Sodium carbonate / sodium bicarbonate buffer, 0.5M pH 11 C5 Sodium carbonate / sodium bicarbonate buffer, 0.5M pH 10 C6 Sodium carbonate / sodium bicarbonate buffer, 0.5M pH 9 C7 Buffer Tris / HCl, 0.5M, pH 9 C8 Sodium phosphate buffer, 0.5M, pH9 C9 0.5M ammonium bicarbonate, pH 8.5C10 Potassium bicarbonate, 0.5M, pH 8.4 C11 Bicarbonate of sodium, 0.5M, pH 8.2 C12 Potassium carbonate / potassium bicarbonate buffer, 0.5M pH 9 Colorimetric results (dyed wicks) The color of the wicks was evaluated in the CIE L * a * b * system, using a Minolta CM 2000 spectrocolorimeter. In this system L * a * b *, L * represents the intensity of the color, a * indicates the green / red color axis and b * the blue color axis. / yellow. The lower the value of L *, the darker or more intense the color. Improvement of the kinetics of staining at the level of the treatment intensity L AL at 22h and 5 d Comparative 131; T = 0 (TO) 37 D L22h = 2.85 B1 T = 1 hour (T 1 h) 34.7 B1 T = 5 hours (T 5 h) 34.24 B1 T = 22 hours (T 22) 34, B1 T = 5 days (T 5j) 29.16 D L5j = 7.84 Invention 131 + post-treatment Cl; TO 28.28 0.10 B1 + post-treatment Cl Tlh 28.19 B1 + post-treatment Cl T5h 26.96 B1 + post-treatment Cl T22h 28.18 B1 + post-treatment Cl T5j 27.67 0.61 131 + post-treatment C2; TO 31.85 0.47 B1 + post-treatment C2 Tlh 32.41 B1 + post-treatment C2 T5h 31.22 B1 + post-treatment C2 T22h 31.38 B1 + post-treatment C2 T5j 31.27 0.58 131 + post-treatment C3 TO 31.99 1.07 B1 + post-treatment C3 Tlh 33.02 B1 + post-treatment C3 T5h 31.91 10 B1 + post-treatment C3 T22h 30.92 B1 + post-treatment C3 T5j 30,16 1.83 B1 + post-treatment C4 TO 28.28 0.41 B1 + post-treatment C4 T1h 28.39 B1 + post-treatment C4 T5h 27.51 B1 + post-treatment C4 T22h 27.87 B1 + post-treatment C5 TO 29.28 1.68 B1 + post-treatment C5 T1h 29.38 B1 + post-treatment C5 T5h 29.24 B1 + post-treatment C5 T22h 27.6 B1 + post-treatment C5 T5j 27.75 1.53 B1 + post-treatment C6 TO 30.99 3.47 B1 + post-treatment C6 T1h 28.68 B1 + post-treatment C6 T5h 27.33 B1 + post-treatment C6 T22h 27.52 B1 + post-treatment C6 T5j 27.38 3.61 B1 + post-treatment C7 TO 30.21 2.81 B1 + post-treatment C7 T1h 29.64 B1 + post-treatment C7 T5h 29.86 B1 + post-treatment C7 T22 h 27.4 B1 + post-treatment C7 T5j 26.67 3.54 B1 + post-treatment C8 TO 33.49 3.79 B1 + post-treatment C8T1h 31.68 B1 + post-treatment C8 T5h 30.6 B1 + post-treatment C8T22h 29.7 Bi + post-treatment C9 TO 30.37 1.02 B1 + post-treatment C9T1h 30.24 B1 + post-treatment C9 T5h 30.25 B1 + post-treatment C9T22h 29.35 B1 + post-treatment C9 T5j 29.6 0.77 B1 + post-treatment C10 TO 32.1 3.42 B1 + post-treatment C10 T1h 30.55 B1 + post-treatment C10 T5h 29.14 B1 + post-treatment C10 T22h 28.68 B1 + post-treatment C10 T5j 29.59 2.51 B1 + post-treatment C11 TO 31.74 1.76 B1 + post-treatment C11 T1h 30.73 B1 + post-treatment C11 T5h 29, 36 B1 + post-treatment C11 T22h 29.98 B1 + post-treatment C11 T5j 30.39 1.35 B1 + post-treatment C12 TO 30.69 2.72 B1 + post-treatment C12 Tlh 30.77 B1 + post treatment C12 T5h 29.83 B1 + post-treatment C12 T22h 27.97 B1 + post-treatment C12 T5j 28.49 2.2 The experiments are carried out at room temperature. It appears that for all the compositions tested of the invention the alkaline post-treatment makes it possible to obtain an excellent intensity after an hour or even a few hours, whereas without the alkaline post-treatment step it is necessary to wait at least 5 days. In addition, all the intensities obtained are significantly better with the process according to the invention than with the comparative method. The NaOH / glycine buffer pH 10 (composition C2) represents a good compromise between the increase in kinetics and the stabilization of the color.
    [0037] Effect of heat Treatment L a * b * AE Comparative B1 + 30 minutes pause - TO 35,5 -5,17 -5,94 33,3 B1 + post-treatment in oven (50 ° C) for 30 minutes 35, 86 -6.35 0.18 30.0 B1 + straightener (150 ° C) 29.18 2.56 1.38 34.8 Invention B1 + C11 + post oven (50 ° C) 30 min. 27,84 -0,16 -6,31 39,3 B1 + C11 + straightener (150 ° C) 28,41 -0,69 -4,08 37,8 It is preferable that the keratinous fibers remain wet before the application of heat.
    [0038] It appears that the combined action of alkaline post-treatment with heat according to the invention makes it possible to form the blue color very rapidly, whether in an oven at 50 ° C. for 30 minutes or under the action of the pliers to be straightened on hair wet at 150 ° C, almost immediately, compared to the comparative method which does not implement an alkaline post-treatment.20 Fixing the blue color of keratin fibers stained from indigo and limiting the drift to the The alkaline agents according to the invention and in particular the potassium or sodium carbonates can be used at a pH of less than or equal to 11. Treatment L * a * b * Comparative B1 + T5j 29,16 2,94 -4,31 Invention B1 + post-treatment C4; T5j 26.01 2.63 -6.67 B1 + post-treatment C5; T5j 27.75 0.89 -5.57 B1 + post-treatment C6; T5j 27.38 2.39 -6.77 B1 + post-treatment C12; T5j 28.49 1.08 -5.43 The results show that the alkaline treatments make it possible to prevent the red turn over time while maintaining an excellent L coloring power which is lower than the comparative one. Advantageously, we can combine the two improvements: Oxidant of hydrogen peroxide type to improve the kinetics and co-treatment (SDS, Tween, or metal salts such as Fe (II) salts) or post-alkaline treatment to avoid the bend of color. Treatment a * b * Comparative B2 0.35 -5.72 B2 + 1.5 months 9.11 -10.55 Invention B2 then post-treated C11 (invention) 0.4 -4.68 B2 then post-treated C11 + 1.5 months (invention) 1.86 -5.87 It appears that the method of the invention avoids the color shift in the red compared to the comparative method without post-alkaline treatment.
    权利要求:
    Claims (15)
    [0001]
    REVENDICATIONS1. Process for the dyeing of keratinous substances, in particular preferably human keratinous fibers such as the hair using: - indeterminate plant powder (s) i) which is mixed before use in an aqueous composition A to obtain a composition B, preferably in the form of a poultice; a cosmetic alkaline composition C at a pH of between 7.5 and 11.5 and containing: ii) one or more agent (s) alkaline agent (s); optionally: iii) hydrogen peroxide or one or more system (s) generator (s) of hydrogen peroxide; and / or iv) one or more metal salt (s); it being understood that: composition B and ingredient (s) iii) and / or iv) are applied to the keratinous fibers together with ingredient i); and the composition C is applied to the keratinous fibers after application of composition B.
    [0002]
    2. Method according to the preceding claim wherein the indigestible plant (s) is (are) chosen from among the species of the genera: Indigofera such as Indigofera tinctoria, Indigo suffruticosa, Indigofera articulata Indigofera arrecta, Indigofera gerardiana, Indigofera argenta, Indigofera indica, or Indigofera longiracemosa; - Isatis such as Isatis tinctoria; - Polygonum or Persicaria such as Polygonum tinctorium or Persicaria tinctoria; Wrightia such as Wrightia tinctoria; - Calanthus such as Calanthe veratrifolia; and - Baphicacanthus such as Baphicacanthus cusia. especially the indigestible plant (s) is (are) of the genus Indigofera and more particularly is Indigofera tinctoria.
    [0003]
    3. Process according to any one of the preceding claims, in which the indigo-producing plant powder (s) i) as defined in claim 1 or 2 is in an aqueous composition A, in an amount of between 10 and 99% inclusive. by weight, relative to the total weight of composition A, more particularly between 10 and 70% by weight, preferably between 20 and 60% by weight, more preferably between 25 and 50% by weight
    [0004]
    4. Method according to any one of the preceding claims, in which the indigo-producing plant powder (s) i) as defined in any one of the preceding claims is in an aqueous composition B in the form of a poultice, in a powder ratio of indigestible plant (s) i) as defined in any one of the preceding claims and an aqueous composition A, preferably water, ranging from 1 part by weight of i) to 1 part by weight of composition aqueous A and preferably water (1/1) to 1 part by weight of i) for 4 parts by weight of aqueous composition and preferably of water (1/4), more preferably 1 part by weight of composition i) for 3 parts of aqueous composition A and preferably water (1/3).
    [0005]
    5. A process according to any one of the preceding claims wherein the indeterminate plant powder (i) as defined in any one of claims 1 or 2 is in an aqueous composition A or B as defined in any one of claims 3 or 4 which is acidic, and preferably at a pH of from 2 to 6.5; preferably ranging from 3 to 6 such that pH = 5.
    [0006]
    6. Method according to any one of the preceding claims wherein the alkaline agent (s) ii) is (are) chosen from ammonia, hydroxides of alkali metals or alkaline earth metal preferably sodium or potassium buffered with one or more amino acids such as glycine, carbonates, bicarbonates or hydrogen carbonates, carbonates buffered with bicarbonate to obtain a pH <11.5, phosphates of alkali or alkaline earth metals such as sodium or post-potassium, alkanolamines such as mono-, di- and triethanolamines, mono-, di- and tri- (hydroxymethyl) aminomethane and their derivatives, amino acids, and compounds of formula (I) below: Ra Wherein W is a (C1-C6) alkylene group such as propylene optionally substituted with a hydroxy, amino or C1-C4 alkyl group; Ra, Rb, Rc and Rd, identical or different, represent a hydrogen atom, a C1-C4 alkyl or C1-C4 hydroxyalkyl radical.
    [0007]
    7. Process according to any one of the preceding claims, in which the alkaline agent (s) ii) is (are) chosen from alkali metal or ammonium carbonates, alkali metal or alkali metal bicarbonates. ammonium as well as alkali metal carbonates buffered with alkali metal bicarbonates to obtain a pH <12.0, preferably less than or equal to 11.0, more preferably between 8.0 and 11.0 inclusive; hydroxides of alkali or alkaline earth metals, preferably of sodium or of potassium, such as NaOH buffered with one or more amino acids such as glycine, to obtain a pH <12.0, preferably less than or equal to 11.0, more preferably inclusive of between 8.0 and 11.0, more particularly inclusive of between 9.0 and 10.0; the alkali metal or alkaline earth metal phosphates such as sodium or post-potassium, the alkanolamines such as tri (hydroxymethyl) aminomethane, more preferentially the alkaline agent (s) ii) in the composition C as defined above are chosen from: NaOH buffer / glycine, 0.5 M at pH 10; NaOH / glycine buffer, 0.5M at pH 9; Sodium carbonate / sodium bicarbonate buffer, 0.5 M at pH 11; Sodium carbonate / sodium bicarbonate buffer, 0.5M at pH 10; Sodium carbonate / sodium bicarbonate buffer, 0.5 M at pH 9; 0.5 M ammonium bicarbonate, pH 8.5; Potassium bicarbonate, 0.5 M, pH 8.4; Sodium Bicarbonate, 0.5M, at pH 8.2 and Potassium Carbonate / Potassium Bicarbonate Buffer, 0.5M at pH 9
    [0008]
    8. Process according to any one of the preceding claims which uses iii) hydrogen peroxide.
    [0009]
    9. Method according to the preceding claim which implements iii) one or more alkaline agent (s) as defined in any one of claims 1, 9 or 10 which is (are) in an aqueous cosmetic composition C with a pH greater than or equal to 7.5 and preferably less than or equal to 11.0, in particular at a pH ranging from 8.0 to 9.5; preferentially, the alkaline agent (s) iii) is (are) in the aqueous composition C in a concentration of between 0.1 M and 1 M, such as 0.5 M.
    [0010]
    The process according to any one of the preceding claims which uses iv) one or more metal salt (s) which comprises (s) a transition metal, or rare earths, preferably a transition metal; in particular, selected from manganese, iron, zinc, titanium, zirconium, molybdenum, tungsten, vanadium; more preferably iron; more particularly the salt (s) metal (s) comprises (s) a metal of oxidation degree I or II, preferably II.
    [0011]
    11. Process according to any one of claims 1 to 13 which uses iv) one or more metal salt (s) which is (are) organic (s) and particularly those whose metal is complexed by two carboxylate groups such as that of formula (III): RC (O) -OMOC (O) -R '(III) as well as its solvates such as the hydrates and their enantiomers Formula (III) in which: M represents a metal (II) or metal2 + of oxidation state 2 as defined in claim 13, preferably iron, and - R and R ', which may be identical or different, represent a (C 1 -C 6) (poly) hydroxyalkyl group; preferentially, the organic metal salt or salts are chosen from citrates, lactates, glycolates, gluconates, acetates, propionates, fumarates, oxalates and tartrates, and preferably acetates, citrates, and gluconates.
    [0012]
    12. Process according to any one of the preceding claims which uses v) one or more surfactant (s), preferably nonionic (s) or anionic (s); particularly in post-treatment ie the surfactant (s) v) is (are) applied after the ingredient i), preferably it (s) is (s) with the ingredient ii), in the composition C as defined in any one of claims 1, 6 or 7.
    [0013]
    13. Method according to any one of the preceding claims which uses v) one or more surfactant (s) chosen (s) from: - C6-030 fatty acid sorbitan esters, optionally oxyalkylenated such as those of formula ( IV): HO (IV) and its optical isomers and hydrates Formula (IV) in which: ALK, identical or different, preferably identical, represent a linear or branched (C1-C6) alkylene group, such as ethylene; - X, Y and Z, identical or different, represent an integer inclusive between 0 and 100, preferably between 0 and 50, more particularly between 0 and 20; it being understood that the sum x + y + z is an integer inclusive of between 1 and 100, preferably between 10 and 50, more particularly between 15 and 30 such that 20 - R represents a linear (C6-C30) alkyl group or branched, preferably (C 8 -C 30) alkyl, more preferably (C 8 -C 20) alkyl; particularly the sorbitan esters are oxyethylenated with a number of moles of ethylene oxide of between 15 and 30 such as 20 (20 OE); and surfactants containing anionic carboxylates, sulphates, sulphonates, sulphoacetates, sulphosuccinates, phosphates, isethionates, sarcosinates, glutamates, lactilates, taurates, salts of fatty acids, galactoside uronic salts, salts of carboxylic ether acids and their salts. mixtures, more preferably sulphates such as alkyl sulphates, and more particularly (C 6 -C 30) alkyl sulphates such as alkali metal or alkaline earth dodecyl sulphate, in particular sodium dodecyl sulphate (SDS).
    [0014]
    14. Process according to any one of the preceding claims which uses, after the application of the alkaline agent (s) ii) preferably on wet keratinous fibers, a heat treatment according to a) and b) as defined below or then are after the third step wherein the keratin fibers are rinsed with water until disappearance of the composition B, preferably without shampooing; a) is heat-dried with a thermal source (convection, conduction or radiation) by sending for example a hot gas stream such as the air necessary for the evaporation of the solvent (s); as a thermal source are hair dryers, hair helmets, a hair straightener, an infrared dispenser and other conventional heaters. b) the application of ceramic heating tongs from 80 ° C to 220 ° C and more preferably from 120 ° C to 180 ° C; preferably step b) is preferred.
    [0015]
    15. Use of agent (s) alkali (s) ii) as defined in any one of claims 6 or 7 and metal salt (s) iv) as defined in any one of claims 10 or 11, and / or surfactant (s) such (s) as defined in any one of claims 12 or 13, and / or hydrogen peroxide or system (s) hydrogen peroxide generator (s) for fixing the blue color of the keratin materials stained with indigo ie to limit the evolution of the coloring towards the red in time and / or to improve the kinetics of the coloration of the materials keratin stained with indigo, especially in terms of potency and intensity of staining.
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    同族专利:
    公开号 | 公开日
    EP3076942A1|2016-10-12|
    US20160324744A1|2016-11-10|
    WO2015082482A1|2015-06-11|
    FR3014315B1|2017-01-27|
    CN105992583A|2016-10-05|
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    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE19511568A1|1995-03-29|1996-10-02|Hartmut Panke|Hair colouring agent|
    DE20100721U1|2001-01-16|2001-04-12|Wella Ag|Means for dyeing keratin fibers|
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    WO2011157668A1|2010-06-16|2011-12-22|L'oreal|Hair dyeing process using a composition comprising at least one indole or indoline compound, a metal salt, hydrogen peroxide and a basifying agent|
    FR2983724A1|2011-12-09|2013-06-14|Oreal|Composition, useful for coloring keratinous fibers such as hair, comprises powder of Indigofera plant, and oil, where composition is present in the form of roll, pallet, soap, pyramid, berlingot or plate|WO2019122331A1|2017-12-22|2019-06-27|L'oreal|Hair dyeing process comprising a step of dyeing with henna and/or indigo and a treatment step comprising the application of a composition comprising a buffer system|
    FR3075645A1|2017-12-22|2019-06-28|L'oreal|PROCESS FOR COLORING KERATINIC FIBERS FROM INDIGOFERE , HENNEAND SPECIAL ALKALINAGENTPOWDER |
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    FR2939644B1|2008-12-12|2011-02-11|Oreal|COSMETIC COMPOSITION COMPRISING AT LEAST ONE ORTHODIPHENOL, A METAL SALT, HYDROGEN PEROXIDE, CARBONATE, A SURFACTANT, METHOD FOR COLORING FROM THE COMPOSITION|
    DE102010041974A1|2010-10-05|2012-04-05|Henkel Ag & Co. Kgaa|Nourishing plant hair color|WO2019121504A2|2017-12-22|2019-06-27|L'oreal|Multiple-compartment device comprising at least one internal frangible seal|
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    CN108892970B|2018-05-07|2020-07-31|贵州西江阿幼民族文化博物馆有限公司|Extraction method and application method of vegetable wax printing pigment|
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    法律状态:
    2015-11-10| PLFP| Fee payment|Year of fee payment: 3 |
    2016-11-11| PLFP| Fee payment|Year of fee payment: 4 |
    2017-11-13| PLFP| Fee payment|Year of fee payment: 5 |
    2019-11-15| PLFP| Fee payment|Year of fee payment: 7 |
    2021-09-10| ST| Notification of lapse|Effective date: 20210805 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1362227A|FR3014315B1|2013-12-06|2013-12-06|PROCESS FOR COLORING KERATINIC MATERIALS FROM INDIGOFEREPLANT POWDERAND ALKALINE AGENT |FR1362227A| FR3014315B1|2013-12-06|2013-12-06|PROCESS FOR COLORING KERATINIC MATERIALS FROM INDIGOFEREPLANT POWDERAND ALKALINE AGENT |
    CN201480066574.7A| CN105992583A|2013-12-06|2014-12-02|Process for dyeing keratin materials using powder from indigo-producing plants and alkaline agent|
    US15/102,018| US20160324744A1|2013-12-06|2014-12-02|Process for dyeing keratin materials using powder from indigo-producing plants and alkaline agent|
    PCT/EP2014/076279| WO2015082482A1|2013-12-06|2014-12-02|Process for dyeing keratin materials using powder from indigo-producing plants and alkaline agent|
    EP14808584.8A| EP3076942A1|2013-12-06|2014-12-02|Process for dyeing keratin materials using powder from indigo-producing plants and alkaline agent|
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