Process for preparing a cosmetic coloring composition in a mixing container

Abstract

Method for preparing a cosmetic coloring composition in a mixing container The present invention relates to a method for preparing a cosmetic coloring composition, comprising a colorant and an oxidant, the method comprising the following steps: - providing at least one mixing container (10) comprising a wall (18) defining a mixing cavity (20), the wall (18) having a texture pattern (34) throughout one of a first zone and a second zone, the texture pattern (34) comprising reliefs and / or depressions, the wall being smooth throughout the other of the second zone and the first zone, - filling only the entire first zone with the at least one colorant, - adding the at least one oxidant into the mixing cavity (20), and - mixing the at least one colorant and the at least one oxidant. The invention further relates to an associated kit. Figure for abstract: Fig 1

Description

Title of the invention: Process for preparing a cosmetic coloring composition in a mixing container

[0001] The present invention relates to a process for preparing a cosmetic coloring composition, comprising at least one colorant and at least one oxidant.

[0002] To prepare the cosmetic coloring composition, it is appropriate to mix the at least one colorant and the at least one oxidant, in given proportions.

[0003] To do this, the user pours a quantity of at least one colorant and a quantity of at least one oxidant.

[0004] The dosage between the components is, for example, carried out by controlling the quantity of material poured.

[0005] However, this method is not very precise and depends heavily on the flow. It is not reassuring for an unfamiliar user, particularly the general public, who cannot be sure that they have obtained the correct proportions.

[0006] However, an incorrectly dosed composition is likely to result in coloring with an undesired shade or intensity, and possibly irritation.

[0007] The aim of the invention is then to propose a process for preparing a cosmetic coloring composition with an improved dosage.

[0008] To this end, the invention relates to a process for preparing a cosmetic coloring composition, more particularly for hair, comprising at least one colorant and at least one oxidant, the process comprising the following steps:

[0009] - providing at least one mixing container, the mixing container comprising a wall defining a mixing cavity, the mixing cavity being adapted to receive the at least one colorant and the at least one oxidant, the mixing cavity having a bottom and comprising a first zone and a second zone, the first zone extending from the bottom to the second zone, the wall having a texture pattern throughout one of the zones among the first zone and the second zone, called the textured zone, the texture pattern comprising reliefs and / or hollows, the wall being smooth throughout the other of the zones among the second zone and the first zone, called the smooth zone,

[0010] - providing at least one colorant and at least one oxidant,

[0011] - filling only the whole of the first zone with the at least one dye,

[0012] - adding at least one oxidant into the mixing cavity, and

[0013] - mixing of at least one colorant and at least one oxidant in the cavity of blend.

[0014] The texture pattern on the first zone or the second zone makes it possible to visually differentiate the first zone and the second zone, and thus to precisely measure the quantity of colorant poured: the user pours the colorant until it covers the texture pattern or the smooth zone. This pattern is particularly visible and easily identifiable for the user. In addition, the user has a visual indication that he has poured the correct quantity of colorant, which reassures him during preparation.

[0015] According to other advantageous aspects of the invention, the preparation process comprises one or more of the following characteristics, taken in isolation or in all technically possible combinations:

[0016] - the height of the reliefs and / or hollows is less than or equal to 20 pm;

[0017] Such a height makes it easier to clean the mixing container, by preventing product from remaining lodged in the hollows or between the reliefs.

[0018] - the texture pattern consists of hollows;

[0019] This provides easy cleaning.

[0020] - the wall has the general shape of a cone with a rounded top forming the bottom ;

[0021] This shape facilitates mixing in the mixing cavity without spilling product: it provides easy, flared access for the user and does not have any corners in which product could become lodged. This also makes it easier to clean the mixing cavity.

[0022] Furthermore, for a thick and viscous coloring cream, the conical shape makes it easier to place the product in the container to have an almost flat profile at the end of filling.

[0023] - the interface between the first zone and the second zone is included in a plane;

[0024] Such an interface is easy for the user to consider. In particular, it is more easy for the user to fill the mixing cavity with colorant up to a plane.

[0025] - the wall has a continuous circular line, hollow or raised, at the interface between the first zone and the second zone;

[0026] The circular line allows for improved user visualization of the interface.

[0027] - the mixing container comprises a base, the mixing container being adapted to be placed on its base, the mixing cavity then being accessible, the base being flat, the interface between the first zone and the second zone being parallel to said base;

[0028] The laying of the product, in particular of a coloring cream, which is particularly thick and viscous, in the container tends to have an almost planar profile, so that the interface plane, serving as an indication, is in accordance with the tendency of the product.

[0029] - the texture pattern comprises a plurality of point hollows and / or reliefs, distributed over the entire textured area; and / or

[0030] The punctate patterns allow for improved visualization of the first area by the user, and provide easier cleaning. In addition, the production of such recesses is particularly economical, particularly compared to the application of a colored visual indication.

[0031] - the mixing container comprises a gripping area.

[0032] The gripping area makes it easier to hold the mixing container during mixing, which helps stabilize the container and facilitate mixing.

[0033] The invention further relates to a kit for cosmetic coloring, more particularly hair coloring, comprising at least one colorant, at least one oxidant, a mixing container, and a mixing tool, the mixing container defining a mixing cavity, the mixing cavity being adapted to receive the at least one colorant and the at least one oxidant, the mixing cavity having a bottom and comprising a first zone and a second zone, the first zone extending from the bottom to the second zone, the wall having a texture pattern throughout one of the zones among the first zone and the second zone, called the textured zone, the texture pattern comprising reliefs and / or hollows, the wall being smooth throughout the other zones among the second zone and the first zone, called the smooth zone, the mixing tool being adapted to mix the at least one colorant and the at least one oxidant in the mixing cavity of the mixing container.

[0034] Such a kit allows a user to prepare a cosmetic coloring composition precisely, by providing him with all the appropriate elements.

[0035] The invention will appear more clearly on reading the description which follows, given solely by way of non-limiting example, and made with reference to the drawings in which:

[0036] [Fig. 1] [Fig. 1] is a perspective view of an example of a mixing container used for the method according to the invention,

[0037] [Fig.2] [Fig.2] is a top view of the mixing container of [Fig.l],

[0038] [Fig.3]] [Fig.3] is a sectional view along plane AA of the mixing container of [Fig.l], and

[0039] [Fig.4] [Fig.4] is a schematic view of a coloring kit according to an example of the invention.

[0040] The invention relates to a process for preparing a cosmetic coloring composition, more particularly for hair, comprising at least one colorant and at least one oxidant.

[0041] The method comprises the following steps:

[0042] - provision of at least one mixing container,

[0043] - providing at least one colorant and at least one oxidant,

[0044] - filling with at least one colorant,

[0045] - addition of at least one oxidant, and

[0046] - mixture of at least one colorant and at least one oxidant.

[0047] An example of a mixing container 10 according to the invention is shown in Figures 1 to 4.

[0048] The mixing container 10 comprises a mixing zone 12.

[0049] The mixing container 10 further comprises here a base 14.

[0050] The mixing container 10 further comprises, here, a gripping zone 16.

[0051] In the mixing zone 12, the mixing container 10 comprises a wall 18 of finishing a mixing cavity 20.

[0052] The mixing cavity 20 is adapted to receive the at least one colorant and the at least one oxidant.

[0053] The mixing cavity 20 has a volume greater than or equal to 0.6 mL.

[0054] The mixing cavity 20 has a bottom 22 and comprises a first zone 24 and a second zone 26, the first zone 24 extending from the bottom 22 to the second zone 26.

[0055] The first zone 24 here has a volume of between 0.6 mL and 0.8 mL.

[0056] The mixing cavity 20 has an opening 28, so that the mixing cavity 20 is accessible to a user.

[0057] The opening 28 is arranged opposite the bottom 22, more particularly in an elevation direction Z.

[0058] The interface 30 between the first zone 24 and the second zone 26 is included in a plane, more particularly perpendicular to the elevation direction Z.

[0059] The interface 30 is here a circle.

[0060] The wall 18 has, for example, the general shape of a cone with a rounded top 32 forming the bottom 22.

[0061] The cone is centered on a principal axis parallel to the elevation direction.

[0062] The cone is here truncated by a plane perpendicular to the elevation direction Z, forming the opening 28.

[0063] The cone has a half-angle at the apex between 25° and 45°, more particularly between 35° and 40°.

[0064] Such values ​​are particularly advantageous for allowing easy flared access for a user, while preventing material overflow.

[0065] The flared access allows a user to easily remove all of the product contained in the mixing cavity.

[0066] The wall 18 has a texture pattern 34 throughout one of the zones among the first zone and the second zone, called the textured zone.

[0067] The texture pattern 34 is, for example, present here over the entire first zone 24.

[0068] The texture pattern 34 comprises reliefs and / or hollows, that is to say that, in the textured zone, the face of the wall 18 delimiting the mixing cavity has reliefs and / or hollows according to the texture pattern 34.

[0069] The texture pattern comprises, for example, a plurality of point hollows and / or reliefs, distributed over the entire textured area.

[0070] The height of the reliefs and / or hollows is less than or equal to 20 pm.

[0071] More particularly, the texture pattern 34 here consists of hollows or reliefs only, more particularly here hollow.

[0072] The wall 18 is smooth throughout the other of the zones among the second zone and the first zone, called the smooth zone.

[0073] The smooth zone here is the second zone 26.

[0074] The wall 18 in the second zone 26 here corresponds to a smooth cone, truncated at the interface 30 on the one hand and at the opening 28 on the other hand.

[0075] Alternatively, the textured area is the second area, and the smooth area is the first area.

[0076] The bottom 22 is smooth or provided with a texture.

[0077] The wall 18 has a continuous circular line, hollow or raised, at the interface between the first zone 22 and the second zone 24.

[0078] Here, the continuous circular line at the interface is here hollow.

[0079] The circular line visually and texturally delimits the interface 30.

[0080] The mixing container 10 is adapted to be placed on its base 14, so that the mixing cavity 20 is then accessible.

[0081] The base 14 is planar, the interface 30 being parallel to said base 14.

[0082] The base 14 is here perpendicular to the elevation direction Z.

[0083] The wall 18 is connected to the base 14 via a lateral surface 36.

[0084] The lateral surface 36 extends between an upper surface 38 and the base 14.

[0085] The upper surface 38 delimits the opening 28.

[0086] The wall 18 extends from the upper surface 38 towards the base 14.

[0087] The lateral surface 36 has a height, measured along the elevation direction Z, greater than or equal to the height of the mixing cavity.

[0088] The base 14 here forms a surface for depositing the mixing container, in particular without the rounded bottom protruding from the base.

[0089] The lateral surface 36 forms, for example, an angle of less than 5° with the elevation direction Z.

[0090] More particularly, the lateral surface 36 forms, for example, an angle of between 2° and 4° with the elevation direction Z, so that the lateral surface moves outwards from the upper surface 38 towards the base 14. The exterior here corresponds, for the lateral surface 36, opposite the mixing cavity.

[0091] The base 14 here forms a shoulder of the lateral surface 36, more particularly towards the outside.

[0092] The base 14 extends perpendicular to the elevation direction Z, from the edge of the lateral surface 36 opposite the upper surface 38, here over the whole of said edge.

[0093] The gripping area 16 allows a user to grasp it, for example between a thumb and an index finger of a user.

[0094] The upper surface 38 here comprises a protrusion 40.

[0095] The protrusion 40 extends from the mixing zone.

[0096] More particularly, the upper surface 38 comprises, here is made up of, the outline of the mixing cavity 20, here in the form of a ring, and the protrusion 40.

[0097] The protrusion 40 comprises at least two lateral sides 42, 44.

[0098] Each lateral side 42, 44 extends from the contour of the mixing cavity 20.

[0099] Each lateral side 42, 44 has a concave curve.

[0100] The lateral sides 42, 44 are connected to each other, opposite the contour of the mixing cavity, by a distal side 46.

[0101] The protrusion 40 of the upper surface 38 is here devoid of any opening or cavity.

[0102] The gripping zone 16 comprises the portion of the lateral surface 36 connecting the protrusion 40 to the base 14, here in the elevation direction Z to within 10°.

[0103] The concave shape allows for easy gripping, particularly between two fingers of a user.

[0104] The mixing container has a height, measured along the elevation direction Z, of less than 2 centimeters.

[0105] This makes it possible to have a compact mixing container, which can in particular be easily integrated into a kit as described below.

[0106] The mixing container is, for example, made of Polyethylene terephthalate (PET).

[0107] PET is a particularly advantageous material, due to its ability to be recycled and / or recyclable.

[0108] The at least one colorant is, for example, provided in a colorant container 50, here shown in [Fig.4].

[0109] The colorant container 50 is, for example, a tube, more particularly made of aluminum.

[0110] The tube comprises an outlet opening closed by a removable plug, more particularly a plug capable of being screwed onto a threaded neck delimiting the outlet opening.

[0111] The outlet opening has, for example, a diameter of between 3 and 15 millimeters, more particularly between 5 and 10 mm.

[0112] By “dye” is meant a composition comprising at least one dye. The composition comprising at least one dye is typically an aqueous composition. It may be thickened, and in this case, comprises at least one thickening agent.

[0113] The dye according to the invention may be an oxidation dye or a direct dye.

[0114] By "oxidation dye" is meant an oxidation dye precursor chosen from oxidation bases and couplers. Oxidation bases and couplers are compounds with little or no color which, by a condensation reaction in the presence of an oxidizing agent, give a colored species. Oxidation dyes are generally chosen from one or more oxidation bases, optionally combined with one or more coupling agents (or couplers). By "direct dye" is meant a natural and / or synthetic dye, including in the form of extract(s), different from oxidation dyes. These are colored compounds which will diffuse superficially on the hair or body hair, in particular the eyebrow. They can be ionic or non-ionic, i.e. anionic, cationic, neutral or non-ionic.

[0115] The composition comprising at least one dye may comprise one or more oxidation bases advantageously chosen from those traditionally used in the coloring of keratin fibers. By way of example, the oxidation bases are chosen from para-phenylenediamines, bis(phenyl)alkylenediamines, para-aminophenols, ortho-aminophenols and heterocyclic bases and the corresponding addition salts.

[0116] Among the para-phenylenediamines which may be mentioned, there are for example para-phenylenediamine, para-toluenediamine, 2-chloro-para-phenylenediamine, 2,3-dimethyl-para-phenylenediamine, 2,6-dimethyl-para-phenylenediamine, 2,6-diethyl-para-phenylenediamine, 2,5-dimethyl-para-phenylenediamine, N,N-dimethyl-para-phenylenediamine, N,N-diethyl-para-phenylenediamine, N,N-dipropyl-para-phenylenediamine, 4-amino-N ,N-diethy 1- 3 -methylaniline, N,N-bis([3-hydroxyethyl)-para-phenylenediamine, 4-N,N-bis([3-hydroxyethyl)amino-2-methylaniline, 4-N,N-bis(B-hydroxyethyl)amino-2-chloroaniline, 2-[3-hydroxyethyl-para -phenylenediamine, 2-methoxymethyl-para-phenylenediamine, 2-fluoro-para-phenylenediamine, 2-isopropyl-para-phenylenediamine, N-(|3-hydroxypropyl)-para-phenylenediamine, 2-hydroxymethyl-para-phenylenediamine, N,N-Dimethyl-3-methyl-para-phenylenediamine, N-ethyl-N-(P-hydroxyethyl)-para-phenylenediamine, N-(P,Y-dihydroxypropyl)-para-phenylenediamine, N-(4'-aminophenyl)-para-phenylenediamine, N-phenyl-para-phenylenediamine, 2-[3-hydroxyethyloxy-para-phenylenediamine, 2-[3-acetylaminoethyloxy-para-phenylenediamine, N-(P-methoxyethyl)-para-phenylenediamine, 4-aminophenylpyrrolidine, 2-thienyl-para-phenylenediamine, 2-[3-hydroxyethylamino-5-aminotoluene and 3-hydroxy-l-(4'-aminophenyl)pyrrolidine and the corresponding addition salts with an acid.Particularly preferred are para-phenylenediamine, para-toluenediamine, 2-isopropyl-para-phenylenediamine, 2-[3-hydroxyethyl-para-phenylenediamine, 2-[3-hydroxyethyloxy-para-phenylenediamine, 2,6-dimethyl-para-phenylenediamine, 2,6-diethyl-para-phenylenediamine, 2,3-dimethyl-para-phenylenediamine, N,N-bis([3-hydroxyethyl)-para-phenylenediamine, 2-chloro-para-phenylenediamine and 2-P-acetylaminoethyloxy-para-phenylenediamine and the corresponding addition salts with an acid.

[0117] Among the bis(phenyl)alkylenediamines which may be mentioned are, for example, N,N'-bis([3-hydroxyethyl)-N,N'-bis(4'-aminophenyl)-1,3-diaminopropanol, N,N'-bis([3-hydroxyethyl)-N,N'-bis(4'-aminophenyl)ethylenediamine, N,N'-bis(4-aminophenyl)tetramethylenediamine, N,N'-bis(P-hydroxyethyl)-N,N'-bis(4-aminophenyl)tetramethylenediamine, N,N'-bis(4-methylaminophenyl)tetramethylenediamine, N,N'-bis(ethyl)-N,N'-bis(4'-amino-3'-methylphenyl)ethylenediamine and 1,8-bis(2,5-diaminophenoxy)-3,6-dioxaoctane and the corresponding addition salts.

[0118] Among the para-aminophenols which are mentioned, there are for example para-aminophenol, 4-amino-3-methylphenol, 4-amino-3-fluorophenol, 4-amino-3-chlorophenol, 4-amino-3-hydroxymethylphenol, 4-amino-2-methylphenol, 4-amino-2-hydroxymethylphenol, 4-amino-2-methoxymethylphenol, 4-amino-2-aminomethylphenol, 4-amino-2-([3-hydroxyethylaminomethyl)phenol and 4-amino-2-fluorophenol and the corresponding addition salts with an acid.

[0119] Among the ortho-aminophenols which may be mentioned are, for example, 2-aminophenol, 2-amino-5-methylphenol, 2-amino-6-methylphenol and 5-acetamido-2-aminophenol and the corresponding addition salts.

[0120] Among the heterocyclic bases that may be mentioned are, for example, pyridine, pyrimidine and pyrazole derivatives.

[0121] Among the pyridine derivatives that may be mentioned are, for example, 2,5-diaminopyridine, 2-(4-methoxyphenyl)amino-3-aminopyridine and 3,4-Diaminopyridine and the corresponding addition salts. Other pyridine oxidation bases that are useful in the present invention are 3-aminopyrazolo[l,5-a]pyridine oxidation bases or the corresponding addition salts. Examples that may be mentioned include pyrazolo[l,5-a]pyrid-3-ylamine, 2-acetylaminopyrazolo[l,5-a]pyrid-3-ylamine, 2-morpholin-4-ylpyrazolo[l,5-a]pyrid-3-ylamine, 3-aminopyrazolo[l,5-a]pyridine-2-carboxylic acid, 2-methoxypyrazolo[l,5-a]pyrid-3-ylamine, (3-aminopyrazolo[l,5-a]pyrid-7-yl)methanol, 2-(3-aminopyrazolo[l,5-a]pyrid-5-yl)ethanol, 2-(3-aminopyrazolo[l,5-a]pyrid-7-yl)ethanol, (3-aminopyrazolo[l,5-a]pyrid-2-yl)methanol, 3,6-diaminopyrazolo[l,5-a]pyridine, 3,4-diaminopyrazolo[l,5-a]pyridine, pyrazolo[l,5-a]pyridine-3,7-diamine, 7-morpholin-4-ylpyrazolo[l,5-a]pyrid-3-ylamine, pyrazolo[l,5-a]pyridine-3,5-diamine, 5-morpholin-4-ylpyrazolo[l,5-a]pyrid-3-ylamine,2-[(3-aminopyrazolo[l,5-a]pyrid-5-yl)(2-hydroxyethyl)-amino]ethanol, 2-[(3-aminopyrazolo[l,5-a]pyrid-7-yl)(2-hydroxyethyl)amino]ethanol, 3-aminopyrazolo[l,5-a]pyridin-5-ol, 3-aminopyrazolo[l,5-a]pyridin-4-ol, 3-aminopyrazolo[l,5-a]pyridin-6-ol, 3-aminopyrazolo[l,5-a]pyridin-7-ol, 2-[3-hydroxyethoxy-3-amino-pyrazolo[l,5-a]pyridine; 2-(4-dimethylpiperazinium-l-yl)-3-amino-pyrazolo[l,5-a]pyridine; and the corresponding addition salts.

[0122] Among the pyrimidine derivatives which may be mentioned, there are for example 2,4,5,6-tetraaminopyrimidine, 4-hydroxy-2,5,6-triaminopyrimidine, 2-hydroxy-4,5,6-triaminopyrimidine, 2,4-dihydroxy-5,6-diaminopyrimidine, 2,5,6-triaminopyrimidine and their addition salts and their tautomeric forms, when a tautomeric equilibrium exists.

[0123] Among the pyrazole derivatives that may be mentioned are, for example, 4,5-diamino-1-methylpyrazole, 4,5-diamino-1-([3-hydroxyethyl)pyrazole, 4,5-diamino-1-([3-methoxyethyl)pyrazole, 3,4-diaminopyrazole, 4,5-diamino-1-(4'-chlorobenzyl)pyrazole, 4,5-diamino-1,3-dimethylpyrazole, 4,5-diamino-3-methyl-1-phenylpyrazole, 4,5-diamino-1-methyl-3-phenylpyrazole, 4-amino-1,3-dimethyl-5-hydrazinopyrazole, l-benzyl-4,5-diamino-3-methylpyrazole, 4,5-diamino-3-tert-butyl- 1-methylpyrazole, 4,5-diamino-l-tert-butyl-3-methylpyrazole, 4,5-diamino- l-([3-hydroxyethyl)-3-methylpyrazole, 4,5-diamino- l-ethyl-3-methylpyrazole, 4,5-diamino-l-ethyl-3-(4'-methoxyphenyl)pyrazole, 4,5-diamino-l-ethyl-3-hydroxymethylpyrazole, 4,5-diamino-3-hydroxymethyl-l-methylpyrazole, 4,5-diamino-3-hydroxymethyl-l-isopropylpyrazole, 4,5-diamino-3-methyl-1-isopropylpyrazole, 4-amino-5-(2'-aminoethyl)amino-l,3-dimethylpyrazole, 3,4,5-triaminopyrazole, l-methyl-3,4,5-triaminopyrazole, 3,5-diamino-l-methyl-4-methylaminopyrazole, 3,5-diamino-4-([3-hydroxyethyl)amino-l-methylpyrazole and the corresponding addition salts. Pyrazole derivatives which may also be mentioned include diamino-N,N-dihydropyrazolopyrazolones and in particular 2,3-diamino-6,7-dihydro-1H,5H-pyrazolo[1,2-a]pyrazol-1-one, 2-amino-3-ethylamino-6,7-dihydro-1H,5H-pyrazolo[1,2-a]pyrazol-1-one, 2-amino-3-isopropylamino-6,7-dihydro-1H,5H-pyrazolo[1,2-a]pyrazol-1-one, 2-amino-3-(pyrrolidin-1-yl)-6,7-dihydro-1H,5H-pyrazolo[1,2-a]pyrazol-1-one, 4,5-diamino-1,2-dimethyl-1,2-dihydropyrazol-3-one, 4,5-diamino-1,2-diethyl-1,2-dihydropyrazol-3-one, 4,5-diamino-1,2-di-(2-hydroxyethyl)-1,2-dihydropyrazol-3-one, 2-amino-3-(2-hydroxyethyl)amino-6,7-dihydro-lH,5H-pyrazolo[l,2-a]pyrazol-l-one, 2-amino-3-dimethylamino-6,7-diliydro-lH,5H-pyrazolo[l,2-a]pyrazol-l-one, 2,3-diamino-5,6,7,8-tetrahydro-lH,6H-pyridazino[l,2-a]pyrazol-l-one, 4-amino-1,2-diethyl-5-(pyrrolidin-1 -yl)-1,2-dihydropyrazol-3-one, 4-amino-5-(3-dimethylaminopyrrolidin-1 -yl)-1,2-diethyl-1,2-dihydropyrazol-3-one, 2,3-diamino-6-hydroxy-6,7-dihydro-lH,5H-pyrazolo[l,2-a]pyrazol-l-one. ,

[0124] The composition comprising at least one colorant may optionally comprise one or more coupling agents advantageously chosen from those traditionally used in the coloring of keratin fibers.

[0125] Among these coupling agents, mention may in particular be made of meta-phenylenediamines, meta-aminophenols, meta-diphenols, naphthalene-based coupling agents and heterocyclic coupling agents as well as the corresponding addition salts. Examples include 1,3-dihydroxybenzene, 1,3-dihydroxy-2-methylbenzene, 4-chloro-1,3-dihydroxybenzene, 2,4-diamino-1-(B-hydroxyethyloxy)benzene, 2-amino-4-(B-hydroxyethylamino)-1-methoxybenzene, 1,3-diaminobenzene, 1,3-bis(2,4-diaminophenoxy)propane, 3-ureidoaniline, 3-ureido-1-dimethylaminobenzene, sesamol, 1B-hydroxyethylamino-3,4-methylenedioxybenzene, α-naphthol, 2-methyl-1-naphthol, 6-hydroxyindole, 4-hydroxyindole, 4-hydroxy-N-methylindole, 2-amino-3-hydroxypyridine, 6-hydroxybenzomorpholine, 3,5-diamino-2,6-dimethoxypyridine, lN-(B-hydroxyethyl)amino-3,4-methylenedioxybenzene, 2,6-bis(B-hydroxyethylamino)toluene, 6-hydroxyindoline, 2,6-dihydroxy-4-methylpyridine, lH-3-methylpyrazol-5-one, l-phenyl-3-methylpyrazol-5-one, 2,6-dimethylpyrazolo[l,5-b]-l,2,4-triazole, 2,6-dimethyl[3,2-c]-l,2,4-triazole and 6-methylpyrazolo[l,5-a]benzimidazole, 2-methyl-5-aminophenol, 5-N-(B-hydroxyethyl)amino-2-methylphenol, 3-aminophenol, 3-amino-2-chloro-6-methylphenol, the corresponding addition salts with an acid and the corresponding mixtures.

[0126] In general, the addition salts of oxidation bases and coupling agents which can be used in the context of the invention are in particular chosen from addition salts with an acid, such as hydrochlorides, hydrobromides, sulfates, citrates, succinates, tartrates, lactates, tosylates, benzenesulfonates, phosphates and acetates.

[0127] The oxidation dye(s) may be present in the composition in a total content ranging from 0.001% to 5% by weight, preferably from 0.01% to 3% by weight, more preferably from 0.1% to 1% by weight, even more preferably from 0.1% to 0.5% by weight relative to the total weight of the composition.

[0128] The composition comprising at least one dye according to the invention may further comprise one or more direct dyes. The direct dye(s) may be chosen from neutral, cationic, anionic direct dyes and mixtures thereof.

[0129] The direct dyes may be neutral, cationic or anionic direct dyes chosen from acridines; acridones; anthranthrones; anthrapyrimidines; anthraquinones; azines; (poly)azo or azo, hydrazono or hydrazones, in particular arylhydrazones; azomethines; benzanthrones; benzimidazoles; benzimidazolones; benzindoles; benzoxazoles; benzopyrans; benzothiazoles; benzoquinones; bisisoindolines; carboxanilides; coumarins; cyanines such as (di)azacarbocyanines, (di)azahemicyanines, hemicyanines, or tetraazacarbocyanines; (di)azines; bisazines; (di)oxazines; (di)thiazines; (di)phenylamines; (di)phenylmethanes; (di)ketopyrrolopyrroles; flavonoids such as flavanthrones and flavones; fluorindines; formazans; indamines; indanthrones; indigoids, thioin-digoids and pseudo-indigoids; indophenols; indoanilines; isoindolines; isoin-dolinones; isoviolanthrones; lactones; (poly)methines such as stilbene or styryl dimethines; naphthalimides; naphthanilides; naphtholactams; naphthoquinones; nitro or nitrates, including nitro(hetero)aromatics; oxadiazoles; oxazines; perilones; perinones; perylenes; phenazines; phenoxazine; phenothiazines; phthalocyanine; polyenes / carotenoids; porphyrins; pyranthrones; pyra-zolanthrones; pyrazolones; pyrimidinoanthrones; pyronins; quinacridones; quinolines; quinophthalones; squaranes; tetrazolines; thiazines; thiopyronines; tria-rylmethanes, xanthenes and natural direct dyes.

[0130] The direct dyes may be chosen in particular from neutral, cationic or anionic nitrobenzene direct dyes, neutral, cationic or anionic azo direct dyes, neutral, cationic or anionic tetraazapentamethine dyes, cationic or anionic quinone dyes and in particular neutral, cationic or anionic anthraquinone dyes, neutral, cationic or anionic azine direct dyes, neutral, cationic or anionic triarylmethane direct dyes, neutral, cationic or anionic azomethine direct dyes and natural direct dyes.

[0131] As neutral, anionic or cationic direct dyes which may be used in the present invention, mention may be made of acridine dyes; acridones; anthranthrones; anthrapyrimidines; anthraquinones; azines; (poly)azo dyes, hydrazono or hy-drazones, in particular arylhydrazones; azomethines; benzanthrones; benzimidazoles; benzimidazolones; benzindoles; benzoxazoles; benzopyrans; benzothiazoles; benzoquinones; bisazines; bis isoindolines; carboxanilides; coumarins; cyanines such as azacarbocyanines, diazacarbocyanines, diazahemicyanines, he-micyanines, or tetraazacarbocyanines; diazines; diketopyrrolopyrroles; dioxazines; diphenylamines; diphenylmethanes; dithiazines; flavonoids such as flavanthrones and flavones; fluorindines; formazans; indamines; indanthrones; indigoids and pseudo-indigoids; indophenols; indoanilines; isoindolines; isoindolinones; isovio-lanthrones; lactones;(poly)methines such as stilbene or styryl dimethines; naphthalimides; naphthanilides; naphtholactams; naphthoquinones; nitro, including nitro(hetero)aromatics; oxadiazoles; oxazines; perilones; perinones; perylenes; phenazines; phenoxazine; phenothiazines; phthalocyanine; polyenes / carotenoids; porphyrins; pyranthrones; pyrazolanthrones; pyrazolones; pyrimidinoanthrones; pyronines; quinacridones; quinolines; quinophthalones; squaranes; tetrazole; thiazines, thioindigo; thiopyronines; triarylmethanes, or xanthenes. ;

[0132] The at least one oxidant is, for example, provided in an oxidant container 52, here shown in [Fig.4].

[0133] The oxidant container 52 is equipped with a drop-by-drop dosing system for the dispensed oxidant.

[0134] The mass of a drop dispensed by the dosing system is, for example, between 0.01 g and 0.1 g.

[0135] The oxidant container 52 is, for example, provided with a dropper 54 at the outlet opening.

[0136] Alternatively, the oxidant container comprises a main container, delimiting the storage volume of the at least one oxidant, and a pipette.

[0137] The main container has an opening, more particularly delimited by a threaded neck, the pipette being able to be inserted into the opening to take at least one oxidant from the storage volume.

[0138] The pipette is equipped with a dropper, so as to deliver the at least one oxidant contained in the pipette drop by drop.

[0139] The pipette is, for example, capable of being screwed at the threaded neck to close the opening when not in use.

[0140] By "oxidant" is meant a composition comprising at least one oxidant, and preferably a chemical oxidant. The composition comprising at least one oxidant is typically an aqueous composition. By "chemical oxidizing agent" is meant an oxidizing agent other than atmospheric oxygen. Preferably, the composition comprising at least one oxidant according to the invention comprises one or more chemical oxidizing agents chosen from hydrogen peroxide, hydrogen peroxide-generating systems other than peroxygen salts and mixtures thereof. The hydrogen peroxide-generating systems other than peroxygen salts may be chosen from urea peroxide, polymer complexes capable of releasing hydrogen peroxide, oxidases and mixtures thereof. As an example of polymer complexes capable of releasing hydrogen peroxide, mention may be made of polyvinylpyrrolidone / H2O2, in particular in powder form.Oxidases can produce hydrogen peroxide in the presence of a suitable substrate, such as glucose in the case of glucose oxidase or uric acid with uricase.

[0141] The entire first zone of the mixing cavity is then filled with the at least one colorant.

[0142] More particularly, only the entire first zone is filled with the at least one colorant.

[0143] The at least one colorant is dispensed, here from the colorant container 50, until it covers the wall delimiting the first zone.

[0144] The first zone is particularly visible thanks to the difference between textured zone and smooth zone, and even more so by the circular line of the interface where applicable.

[0145] The at least one oxidant is added into the mixing cavity, after filling with the at least one colorant.

[0146] More particularly, a given number of drops is poured into the mixing cavity 20 from the oxidant container 52, more particularly onto the at least one colorant.

[0147] The distribution by drops is carried out thanks to the drop-by-drop dosing system of the oxidant container 52.

[0148] The number given is, for example, between 5 and 25 drops.

[0149] After the steps of filling with the at least one colorant and adding the at least one oxidant, the at least one colorant and the at least one oxidant are mixed in the mixing cavity 20, more particularly using a mixing tool 56, shown here in [Fig.4].

[0150] The mixing tool 56 is here adapted to mix the at least one colorant and the at least one oxidant in the mixing cavity 20 of the mixing container 10.

[0151] The mixing tool 56 notably comprises a tip 58, provided for mixing.

[0152] The tip 58 is beveled here.

[0153] The mixing tool 56 further comprises a handle 60 for gripping by a user.

[0154] The mixing is carried out by moving the tip 58 in the at least one colorant and the at least one oxidant contained in the cavity.

[0155] The mixing tool 56 further comprises, here advantageously, an applicator 62.

[0156] The applicator 62 is secured to the handle 60 opposite the tip 58, more particularly in a direction of extension of the mixing tool 56.

[0157] The applicator 62 comprises, for example, a brush.

[0158] The brush comprises bristles oriented perpendicular to the extension axis of the handle.

[0159] The applicator allows the application of the mixture of at least one oxidant and at least one colorant to hair or body hair, more particularly to one or more eyebrows, of a user.

[0160] Thus, after mixing, a user takes some of the mixture from the applicator and applies it to hair or body hair, more particularly to eyebrows, by brushing the hair or body hair.

[0161] Such a method therefore allows the preparation of a cosmetic coloring composition with a correct dosage and guided by the user.

[0162] Furthermore, cleaning the mixing container is particularly easy after preparation and use of the cosmetic coloring composition.

[0163] The invention further relates to a kit 100 for cosmetic coloring, more particularly hair coloring.

[0164] An example of kit 100 is shown in [Fig.4].

[0165] The kit 100 comprises at least one colorant, more particularly the colorant container 50, at least one oxidant, more particularly the oxidant container 52, a mixing container 10, and a mixing tool 56, as described previously.

[0166] Such a kit 100 thus comprises all of the elements for preparing the cosmetic coloring, here hair coloring, and advantageously for its application, in the event of the presence of an applicator 62.

[0167] The kit is easily usable by a user not trained in the field of

[0168] cosmetic. Thus, the coloring can be prepared by a user provided with the kit, at home directly, and used directly.

[0169] The mixing container allows for correct dosage of the prepared coloring, which allows for a result that meets expectations.

Claims

Claims

1. A method for preparing a cosmetic coloring composition, more particularly for hair, comprising at least one colorant and at least one oxidant, the method comprising the following steps: - providing at least one mixing container (10), the mixing container (10) comprising a wall (18) defining a mixing cavity (20), the mixing cavity (20) being adapted to receive the at least one colorant and the at least one oxidant, the mixing cavity (20) having a bottom (22) and comprising a first zone (24) and a second zone (26), the first zone (24) extending from the bottom (22) to the second zone (26), the wall (18) having a texture pattern (34) throughout one of the zones among the first zone (24) and the second zone (26), called the textured zone, the texture pattern (34) comprising reliefs and / or hollows,the wall being smooth throughout the other of the zones among the second zone (26) and the first zone (24), called smooth zone, - supplying the at least one colorant and the at least one oxidant, - filling only the entire first zone (24) with the at least one colorant, - adding the at least one oxidant into the mixing cavity (20), and - mixing the at least one colorant and the at least one oxidant in the mixing cavity (20).,

2. A process for preparing a coloring composition according to claim 1, wherein the height of the reliefs and / or hollows is less than or equal to 20 pm.

3. A method of preparing a coloring composition according to claim 1 or 2, wherein the texture pattern (34) consists of hollows.

4. A method of preparing a coloring composition according to any one of claims 1 to 3, wherein the wall (18) has the general shape of a cone with a rounded top forming the bottom (22).

5. A method of preparing a coloring composition according to any one of claims 1 to 4, wherein the interface (30) between the first zone (24) and the second zone (26) is included in a plane.

6. A method of preparing a coloring composition according to claim 5, wherein the wall (18) has a circular line continuous, hollow or raised, at the interface (30) between the first zone (24) and the second zone (26).

7. A method of preparing a coloring composition according to claim 5 or 6, wherein the mixing container (10) comprises a base (14), the mixing container (10) being adapted to be placed on its base (14), the mixing cavity (20) then being accessible, the base (14) being planar, the interface (30) between the first zone (24) and the second zone (26) being parallel to said base (14).

8. A method of preparing a coloring composition according to any one of claims 1 to 7, wherein the texture pattern (34) comprises a plurality of punctate hollows and / or reliefs, distributed over the entire textured area.

9. A method of preparing a coloring composition according to any one of claims 1 to 8, wherein the mixing container (10) comprises a gripping area (16).

10. Kit (100) for cosmetic coloring, more particularly hair coloring, comprising at least one colorant, at least one oxidant, a mixing container (10), and a mixing tool (56), the mixing container (10) defining a mixing cavity (20), the mixing cavity (20) being adapted to receive the at least one colorant and the at least one oxidant, the mixing cavity (20) having a bottom (22) and comprising a first zone (24) and a second zone (26), the first zone (24) extending from the bottom (22) to the second zone (26), the wall (18) having a texture pattern (34) throughout one of the zones among the first zone (24) and the second zone (26), called the textured zone, the texture pattern (34) comprising reliefs and / or hollows, the wall being smooth throughout the other zones among the second zone (26) and the first zone (24), called smooth zone,the mixing tool (56) being adapted to mix the at least one colorant and the at least one oxidant in the mixing cavity (20) of the mixing container (10).,