MX2007006468A - High level carbonate and/or oxidant hair colouring compositions - Google Patents

Abstract

The present invention relates to an oxidative hair colouring and bleaching composition comprising an oxidizing agent, a source of carbonate ions, and an alkalising agent, wherein the composition comprises at least 4%by weight of hydrogen peroxide or a source of carbonate ions, utilised at pH 9.5 and below and wherein said composition is free of a source of radical scavengers which result in improved lift and lightening for blonde shades, excellent dye deposition and colour and improved grey coverage. Moreover, the compositions of the present invention also exhibit low odour and deliver a high level of lift and lightening equal to the currently utilised ammonia/peroxide systems, whilst reducing the concentration of peroxide and reducing the hair fibre damage.

Description

COLORING COMPOSITIONS WITH HIGH LEVEL OF CARBONATE AND / OR OXIDANT FOR HAIR FIELD OF THE INVENTION The present invention relates to compositions for the discoloration and coloring of keratinous fibers.

BACKGROUND OF THE INVENTION The permanent alteration of the color of the keratinous fibers, in particular the human hair, by means of the application of hair dyes is well known. To provide the consumer with the desired hair color and color intensity, a very complex chemical process is used. Formulations for permanent hair dyeing usually comprise oxidant hair dye precursors that can diffuse into the hair through the cuticle and into the cortex where they can react with each other and with suitable oxidizing agents to form the hair molecules. final dye. Due to the larger size of the resulting molecules, they can not easily diffuse out of the hair during the subsequent washing with water or detergents and, therefore, provide the permanence of the color desired by the consumer. Generally, this reaction is carried out in an environment at about pH 10 in the presence of an alkalizing agent and an oxidizing agent. In addition, the consumer repeats this process regularly to maintain the desired color and tone of the hair and to ensure continuous and even coverage of the hair including coverage of new hair growth. The manufacturer of these products is also required to work within the limits imposed by a large number of restrictions. Since these products are placed in direct contact with the skin of consumers, there is the potential for accidental contact with the eyes or ingestion (for example), which may occur during the dyeing process. Therefore, the formulations must comply with strict safety requirements and must not induce allergic reactions. In addition to meeting these requirements, the products must also be pleasing to the consumer in the visual and olfactory aspects. Specifically, the products must meet certain physical parameters in order to ensure that the consumer can easily apply the product on the hair to provide the desired effect without accidentally staining the clothing, the skin, especially along the hairline , or other consumer objects. The manufacturer is also required to provide the consumer with hair dyes with a variety of different resulting colors. Some consumers may only wish to improve the natural color of the hair, while others may wish to cover the gray hair or completely change the color of the hair to a different hair color of natural appearance or "synthetic" appearance. Accordingly, the manufacturer can provide more than twenty different formulations, of varying colors and shades, to meet the range of specific consumer needs. These formulations must be formulated individually and, in general, are complex formulas containing a mixture of different dye compounds. For that reason, the manufacture of these product ranges can be expensive and complex. However, despite the fact that commercial products for dyeing hair have been available for many years, such products still exhibit many deficiencies related to consumption. Habitually, hair permanent hair products contain an alkaline source, usually a source of ammonia. This serves to dilate the hair and allow the dye precursor molecules to enter the hair and also to improve the rinsing effect of the oxidizing agent which is generally hydrogen peroxide. However, ammonia is also volatile and has an extremely unpleasant odor for consumers of these products, especially because these hair dye products are used very close to the nasal region. Thus, it would be highly desirable to provide an oxidizing composition for hair coloration and discoloration that provides the level of rinsing and color required by the consumer, but in which the detectable ammonia odor has been reduced or eliminated. Indeed, another deficient aspect of the current products for dyeing hair is the provision of hair coloring products that provide the desired color, especially higher levels of rinsing, and an effective coverage of gray hair. Clearly, while the amount of gray to be dyed varies considerably from one consumer to another, the overall appearance of the dyed hair required by the consumer must be almost identical for naturally pigmented hair, for graying hair and for new hair growth. the root with the purpose of providing a uniform color deposit from the root to the tip. In addition, it is also important that the uniform and even initial color coverage is maintained during the washing and drying cycle after dyeing. The provision of high levels of rinsing is particularly important to provide the necessary range of blond tones and greater coverage of gray hair that the consumer demands. In addition, the consumer also demands the supply of vibrant shades such as red, where the vivacity increases as the underlying color of the hair becomes lighter. These products pose specific difficulties for the manufacturer, since they usually require the use of high levels of oxidizing agents such as hydrogen peroxide and high levels of ammonia to provide the required rinsing effect. However, in addition to the problems related to the presence of high levels of ammonia and peroxide in these products, these also affect the condition of the hair and can induce, in some cases, the irritation of the skin of the scalp. An alternative method for providing these high levels of rinsing is to use the products known as 'bleaching agents' comprising peroxide, ammonia and persulfate without the presence of dyes. These products provide the necessary rinsing, but have the disadvantage of producing very high fiber damage. Another disadvantage of the products that provide an intense rinsing is that the oxidizing and preformed dyes are not stable in the presence of oxidizing systems. As a consequence of this, the consumer must previously decolorize the hair to the desired level of rinsing and in another step he must apply a product containing oxidizing or preformed dyes. Therefore, it would also be highly desirable to provide an oxidizing composition for coloring and discoloration of the hair that provides the hair with the intense rinsing and color required in a single step, without unnecessarily damaging it. Another aspect of the critical performance for the consumer is the time necessary for the required color to fully develop. In particular, the application of products for dyeing the hair is still a process that consumes a relatively long time and the consumer may take more than an hour to mix, apply, wait for the color to develop and remove the product, before drying and returning. to comb Most of the current coloring products require a time of at least 25 minutes for the final color to fully develop for which the consumer must remain seated during that period of time with the product applied to the hair. For most consumers the process of hair dyeing is a regular task of their beauty routine and, therefore, it would be highly desirable to be able to reduce the time needed to dye the hair while complying with the following requirements: ease of application, little odor and, especially, the supply of the required hair color, in particular for consumers who need significant changes and levels of elevation in the resulting color. There is a large amount of dyes that are used in hair coloring products. Nevertheless, since the consumer demands the supply of specific colors, there is a need to improve and increase the colors provided by the manufacturers of hair dyes, especially for the range of the yellow color. However, the development of new dyes is extremely expensive and time-consuming, and therefore the amount of new dyes available does not increase significantly over time. Therefore, it would also be desirable to offer the consumer a hair dye that provides higher color and lightening, that intensifies color supply, pickup and durability and that provides better color and color variations based on the dyes currently available. . Surprisingly, it has now been discovered that hair coloration and discoloration systems comprising an oxidizing agent and a carbonate ion source, wherein said composition comprises at least more than 4% by weight of that oxidizing agent or that source of ions. carbonate and an alkalizing agent used at a pH of up to 9.5, free radical scavenger, provides a higher lift and rinsing, especially for the blond tones, an excellent deposit of the dye and gray coverage and a greater intensity of color with which Different colors, shades and chromophores are provided. In addition, the compositions of the present invention also exhibit surprisingly little odor and reduce damage to hair fiber.

Many attempts to address at least some of the improvement areas identified above have been described in the literature. For example, the use of carbonate has been described in the following documents of the hair dyeing industry. However, none of these references describe the claimed features of the present invention. European Patent EP 435 012 discloses hair dyeing compositions that require a short dyeing period, cause little damage to hair and have no irritating odor after dyeing, comprising a source of carbonate, an alkaline hydrogen peroxide that does not generate smell and a regulatory solution. Similarly, European Patent EP 1 106 166 describes hair dye compositions comprising ammonia, carbonate (different from ammonium salt), transition metal salt and chelating agent, which do not give off an irritating odor, produce little irritation on the skin and can change the color of the hair to a lighter shade in a short time. International Patent Publication WO01 / 28508 describes hair dyeing formulations comprising oxidizing agents and carbonate or ammonia carbamate, which provide better discoloration and discoloration with little odor and hair damage without the need for regulating agents, pH modifiers or agents of bulging of the hair. Japanese patent JP01206825 discloses a low permeating hair dyeing composition comprising ammonia, ammonium salt and carbonate. U.S. Pat. no. 2004/0083557 describes hair coloring compositions comprising an oxidant hair dye precursor, a metal cyanate, an alkalizing agent and an oxidizing agent and, preferably, a bicarbonate metal salt in order to provide a good color lift and little smell Patent WO04 / 014328 discloses one-step hair dyeing compositions comprising peroxide oxidizing agents, specific oxidizing agents and at least one water soluble salt that releases carbonate, which provide color more effectively and wherein the composition It is applied for a period of 2 to 60 minutes. U.S. Pat. no. 2004/0098814 discloses a method of permanent hair coloring by which the hair is subjected to a series of brief consecutive treatments, whereby the treatment comprises a dye intermediate in a shampoo or conditioning base, a salt soluble in water that releases carbonate and a water soluble ammonium salt. U.S. Pat. no. 2004/0098816 further describes a method for permanent gradual hair coloring; the method includes subjecting the hair to several treatments spaced apart from each other for a certain period of time, wherein the treatment compositions comprise ammonium carbonate in combination with a chelant.

BRIEF DESCRIPTION OF THE INVENTION The present invention relates to a dyeing or decolorizing composition for hair comprising i) at least one source of hydrogen peroxide, ii) at least one source of carbonate, carbamate and hydrogen carbonate ions and mixtures of these and iii) at least one source of alkalizing agent, preferably ammonium ions, wherein said composition comprises at least more than about 4% by weight of that source of hydrogen peroxide or that source of those carbonate ions and wherein said composition has a pH up to about pH 9.5, inclusive, and wherein that composition is free of a source of radical scavengers. Another aspect of the present invention relates to a method for the oxidative coloration or discoloration of hair comprising the steps of applying a composition in accordance with the present invention, leaving that composition on the hair for a period of about 2 to 60 minutes and Then rinse that hair composition. Another aspect of the present invention relates to a sequential method of hair coloration or oxidative discoloration comprising the steps of at least two sequential oxidation or discoloration treatments for the hair wherein the period of time between each treatment is approximately 1 day to 60 days and wherein each treatment comprises the steps of providing a composition of the present invention, apply that composition to the hair and maintain that composition in the hair for a period of less than 20 minutes and then remove that composition from the hair by means of rinsing. Another aspect of the present invention relates to a case for hair coloration and discoloration comprising an individually packaged oxidizing component comprising at least one source of hydrogen peroxide and an individually packaged coloring component comprising at least one source of carbonate ions, carbamate ions and hydrogen carbonate ions, and mixtures thereof, and at least one alkalizing agent, wherein said kit comprises at least more than about 4% by weight of that source of hydrogen peroxide or that source thereof carbonate ions and where that case is free of radical scavengers. Preferably, the resulting mixture between the oxidizing component and the coloring component has a pH up to about pH 9.5, inclusive.

DETAILED DESCRIPTION OF THE INVENTION The permanent hair coloring products currently marketed typically use a combination of an alkalizing system, dye precursors and an oxidant to deliver the desired hair color to the consumer. The alkalizing agent is generally ammonia or an alkanolamine, such as monoethanolamine, and the oxidant is generally hydrogen peroxide or a solid form of hydrogen peroxide. The final hair color of the consumer is a combination of the underlying discoloration of the melanin pigment in the hair fiber and the supply of the chromophore portions of the color dye that are preformed, i.e. they are direct dyes, or are formed by the oxidation of dye precursors in hair fiber. The optimum pH for those systems normally has approximately pH 10.0. This high pH is necessary to produce a sufficient concentration of the perhydroxy anion (HOO-) to obtain the desired decolorization of the melamine. It has been discovered that below pH 9.5 the concentration of this species is less than 0. 01% of the concentration of hydrogen peroxide added (pKa = 1.6) and the amount of melanin discoloration drops dramatically and therefore is insufficient to provide the desired final color. However, as described above, compositions having a high pH cause many disadvantages observed by consumers of these coloring systems. In particular, the level of volatile ammonia increases at high pH (above pH 9.5) providing greater unpleasant odor. In addition, these compositions can not provide the intense rinsing that the consumer needs and the vibrant colors that the consumer desires. In addition, the reactive species, including the perhydroxyl anion, react with the hair fiber resulting in significant damage to the fiber.

A consequence of this reactivity is that the hydrophilicity of the hair fibers increases significantly and this causes an increase in the force required to comb the hair as compared to the hair that has not been dyed. In addition, the higher forces that are exerted during styling and styling result in greater damage to the hair fibers. Surprisingly it has now been discovered that dyeing and bleaching compositions for hair comprising the combination of at least one source of peroxy monocarbonate ions, preferably formed in situ from a source of hydrogen peroxide and a source of carbonate ion, wherein the composition comprises at least more than about 4% by weight of the peroxide or carbonate source and at least one source of alkalizing agents, at a pH of up to about 9.5, can improve the level of elevation necessary and provide the same time the desired hair color. In addition, the compositions also reduce odor and damage to hair fibers. Without theoretical limitations of any kind, it is believed that in the present invention the key species responsible for the discoloration of melanin, i.e., the peroxy ion monocarbonate (-OC (O) OOH), decomposes at pH values above 9.5 to form oxygen and the hydrogen carbonate ion. At pH values below 7.5 the hydrogen carbonate ion decomposes to form carbon dioxide and water. At pH values of 9.0 the melanin discoloration and the final color observed is at an optimum level. In this way, the present invention surprisingly allows the supply of better lifting, i.e. hair lightening, highly desired by consumers. In addition, the advantage of compositions having a pH lower than 9.5 is that in them the unpleasant odor of ammonia is significantly reduced and thus a hair coloring product can be made which provides the desired rinsing and color with an odor pleasant and similar to that of a cosmetic. further, peroxy monocarbonate ions having a pH less than 9.0 cause less damage to the fiber than current coloring systems. In particular, this improves the appearance of the hair fiber and, therefore, increases the shine and improves the appearance of hair color. Without any theoretical limitations, it is also believed that the claimed compositions improve the stability of the oxidizing and preformed dyes compared to conventional peroxide and ammonia systems or persulfate and peroxide systems and, at the same time, allow a higher level of rinsing. Also, without being limited by theory, it is believed that the claimed composition provides different colors as a result of the formation of different chromophore ratios in the carbonate system versus the ammonium hydroxide / peroxide system. It is also believed that with the carbonate system the kinetics of color formation is faster and, thus, the final color is delivered to the consumer's hair more quickly. In this way, the development time in the consumer's hair can be significantly reduced to less than about 25 minutes if necessary. In addition, the faster kinetic of the dye causes the hair to capture more dye and to reduce the loss of dye during washing.

Oxidizing agent The compositions according to the present invention thus comprise a source of peroxymonocarbonate ions. These ions are generally formed at the site of the reaction between a source of hydrogen peroxide and carbonate ion. Accordingly, the compositions according to the present invention comprise or are used in combination with a composition comprising at least one source of an oxidizing agent. Preferred oxidizing agents for use herein are water-soluble peroxide oxidizing agents. "Soluble in water", as defined herein, means that, under standard conditions, at least 0.1 g, preferably 1 g, more preferably 10 g of the oxidizing agent can be dissolved in 1 liter of deionized water. The oxidizing agents are valuable for the initial solubilization and discoloration of the melanin (bleaching action) and accelerate the oxidation of oxidant dye precursors (oxidative coloring) on the hair shaft. Any oxidizing agent known in the industry can be used in the present invention. Preferred water soluble oxidizing agents are inorganic peroxygen materials with the ability to produce hydrogen peroxide in an aqueous solution. Water-soluble peroxygen oxidizing agents are well known in the industry and include hydrogen peroxide; inorganic peroxides of alkali metals, such as sodium periodate and sodium peroxide; and organic peroxides, such as urea peroxide, melamine peroxide; and inorganic perhydrate salt bleaching compounds, such as alkali metal salts of perborates, percarbonates, perfosphates, persilicates, persulfates and the like. These inorganic perhydrate salts can be incorporated as monohydrates, tetrahydrates, etc. Alkyl and aryl peroxides, and peroxidases can also be used. If desired, mixtures of two or more of these oxidizing agents can be used. The oxidizing agents can be provided in aqueous solution or as a powder that dissolves before use. Preferred for use in the compositions according to the present invention are hydrogen peroxide, percarbonate (which can be used to provide a source of oxidizing agent and carbonate ions), persulfates, and combinations thereof. According to the present invention, the compositions comprise from about 0.1% to about 10% by weight, preferably, from about 1% to about 7% by weight and, most preferably, from about 2% to about 5% by weight. weight, of an oxidizing agent.

Source of carbonate ion According to the present invention the compositions also comprise in this way at least one source of carbonate ions or carbamate ions or hydrocarbonate ions or any mixture thereof. Any source of these ions can be used. Suitable sources for use herein include sodium, potassium, lithium, calcium, magnesium, barium, ammonium salts of carbonate ions, carbamate and hydrocarbonate and mixtures thereof, such as sodium carbonate, sodium hydrogen carbonate, potassium carbonate, potassium hydrogen carbonate, lithium carbonate, calcium carbonate, magnesium carbonate, barium carbonate, ammonium carbonate, ammonium hydrogen carbonate and mixtures thereof. The percarbonate salts can also be used to provide both the carbonate ion source and the oxidizing agent. The preferred sources of carbonate ions, carbamate and hydrocarbon ions are sodium hydrogen carbonate, hydrogen hydrogen carbonate, ammonium carbamate and mixtures thereof. The compositions of the present invention may comprise from about 0.1% to about 15%, preferably from about 0.1% to about 10% by weight, more preferably from about 1% to about 8% by weight of the carbonate ion. If they are included in the composition, ammonium ions and carbonate ions are present in a weight ratio of 3: 1 to 1: 10, preferably, 2: 1 to 1: 5. In an especially preferred embodiment of the present invention, ammonium ions and carbonate ion sources are supplied from a single source such as ammonium carbonate, ammonium hydrogen carbonate, ammonium hydrocarbonate or mixtures thereof. According to the present invention, the oxidative coloring or bleaching compositions comprise at least more than 4%, preferably at least 4.5%, more preferably at least more than about 4.5% to 15%, still more preferably at least about 5% and most preferably at least about 6% by weight of that source of hydrogen peroxide or that source of carbonate, carbamate and hydrogen carbonate and mixtures thereof.

Source of Alkalizing Agent In accordance with the present invention, the composition also comprises at least one source of alkalizing agent, preferably a source of ammonium and ammonia ions. In particular, the preferred alkalizing agents are those that provide a source of ammonium ions. Any source of ammonium ions is suitable for use in the present. Preferred sources include ammonium chloride, ammonium sulfate, ammonium nitrate, ammonium phosphate, ammonium acetate, ammonium carbonate, ammonium hydrogen carbonate, ammonium carbamate, ammonium hydroxide, percarbonate salts, ammonia, and mixtures thereof. Especially preferred are ammonium carbonate, ammonium carbamate, ammonia and mixtures thereof. The compositions of the present invention may comprise from about 0.1% to about 10% by weight, preferably, from about 0.5% to about 5%, most preferably from about 1% to about 3%, of an alkalizing agent, preferably, ammonium ions. pH The compositions of the present invention have a pH of up to 9.5, inclusive. Preferably, the compositions of the present invention have a pH of about 9.5 to about 7.5, more preferably, of about 9.5 to about 8.4, with a greater preference, of about 9.4 to about 8.5, and even more preferably, a pH of approximately 9.0. Preferably, the compositions of the present invention are prepared in such a way that before application to the hair fibers, the pH of the composition is not greater than about pH 9.5. However, in another embodiment of the present invention, the compositions may be formulated in such a way that the pH is up to 9.5 during the time period of application of the composition to the hair fibers before removing it therefrom. Preferably, the pH is up to about 9.5 during at least 50% of the time period, preferably at least 70%, most preferably at least 80% of the time period of application of the composition to the hair. More preferably, the pH of the composition is up to about 9.5 to 10 minutes, preferably up to 5 minutes after application to the hair fibers. The pH of the compositions can be determined using an ettler Toledo MP220 pH meter or an MP225, equipped with a standard laboratory pH electrode. Before each use, the equipment is calibrated with standard calibration regulators using the standard procedure. It is known that to obtain adequate rinsing and proper color formation, the final formulation must have adequate regulatory capacity or alkalinity reserve (the ability of the system to withstand the pH change that would otherwise be caused by the addition of acid). The reserve alkalinity is measured using a Mettler DL70 autotitator with 0.1 N methanolic hydrochloric acid, which is added to 0.7 mL of well mixed coloring product in 50 mL of methanol. The electrode is calibrated and then used to measure the amount of acid needed to reach the maximum equivalence point triggered by a rapid pH change. Using this method it has been determined that a reserve alkalinity of at least 0.2 mL of 0.1 N ethanolic hydrochloric acid and preferably greater than 0.4 is necessary for a good rinse and coloration. Suitable regulatory systems include mixtures of ammonium acetate / ammonia, monoethanolamine tetrasodium pyrophosphate, isopropanolamine, benzoic acid.

Radical scavenger In accordance with the present invention, the compositions are generally free of a source of radical scavenger. As used herein, the term "free" relates to compositions comprising less than 3%, preferably less than 2%, more preferably less than 1%, even more preferably less than 0.1%, still more preferably less than 0.01%, with a greater preference less than 0.001% and most preferably are virtually free of a source of radical scavenger. As used herein, the term "radical scavenger" is related to compounds according to the general formula: (I): R1-YC (H) (R3) -R4- (C (H) (R5) - Y-R6) n wherein Y is NR2, O, or S, preferably NR2, n is 0 to 2, and wherein R4 is monovalent or divalent and is selected from: (a) unsubstituted aliphatic, heteroaliphatic or heteroolefinic systems or substituted with branched or straight-chain alkyls, mono- or poly-unsaturated alkyls or heteroalkyls, (b) mono- or polycyclic substituted or unsubstituted aliphatic, aryl or heterocyclic systems, or (c) mono, poly or perfluoroalkyl systems, substituted or unsubstituted replaced; the systems of (a), (b) and (c) comprise from 1 to 12 carbon atoms and from 0 to 5 heteroatoms selected from O, S, N, P and Si; and wherein R4 may be associated with R3 or R5 to create a 5, 6 or 7 membered ring; and wherein R1, R2, R3, R5 and R6 are monovalent and are independently selected from: (a), (b) and (c) described above, or H. Preferably, R4 is selected from: (a) aliphatic systems, heteroaliphatic or heteroolefinic alkyl, heteroalkyl substituted or unsubstituted, linear or branched, (b) aliphatic monocyclic or polycyclic, aryl or heterocyclic substituted or unsubstituted systems, or (c) mono, poly or perfluoroalkyl substituted or unsubstituted; more preferably, R4 is selected from (a) aliphatic or heteroaliphatic alkyl, heteroalkyl, substituted or unsubstituted, linear or branched systems, (b) substituted or unsubstituted aryl or heterocyclic systems, or (c) mono, poly, or perfluoroalkyl substituted or unsubstituted; more preferably, linear or branched substituted or unsubstituted alkyl or heteroalkyl systems. Preferably, the R 4 of the systems (a), (b) and (c) described above comprise from 1 to 8 carbon atoms, preferably from 1 to 6, more preferably from 1 to 4 carbon atoms and from 0 to 3 heteroatoms, preferably from 0 to 2 heteroatoms, most preferably from 0 to 1 heteroatom. Where systems contain heteroatoms, systems contain, preferably, 1 heteroatom. Preferred heteroatoms include O, S and N; More preferred are O and N, and most preferred is O. Preferably, R1, R2, R3, R5 and R6 are independently selected from any of the systems defined for R4 above and H. In alternative embodiments, any of the groups R1 , R2, R3, R4, R5 and R6 are substituted. Preferably, the substituent (s) are selected from: (a) the group of monovalent substituents with carbon bonds comprising: (i) aliphatic, heteroaliphatic or heteroolefinic alkyl, or mono- or polyunsaturated alkyl, substituted or unsubstituted, linear systems or branched, (ii) mono-, polycyclic, aryl or heterocyclic substituted or unsubstituted aliphatic systems, or (iii) substituted or unsubstituted mono, poly or perfluoroalkyl systems; the systems of (i), (ii) and (iii) comprise from 1 to 10 carbon atoms and from 0 to 5 heteroatoms selected from O, S, N, P and Si; (b) the group of monovalent substituents with S-bonds comprising SA1, SCN, S02A1, S03A1, SSA1, SOA1, S02NA1A2, SNA1 A2 and SONA1A2; (c) the group of monovalent substituents with O-links comprising OA1, OCN and ONA1A2; (d) the group of monovalent substituents with N-bonds comprising NA1 A2, (NA1A2A3) +, NC, NA1OA2, NA1SA2, NCO, NCS, N02, N = NA1, N = NOA1, NA1CN, NA1 NA2 A3; (e) the group of monovalent substituents comprising COOA1, CON3, CONA12, CONA1COA2, C (= NA1) NA1A2, CHO, CHS, CN, NC and X; and (f) the group comprising monovalent fluoroalkyl substituents comprising mono, poly or perfluoroalkyl systems comprising from 1 to 12 carbon atoms and from 0 to 4 heteroatoms. For groups (b) to (e) described above, A1, A2 and A3 are monovalent and are independently selected from: (1) H, (2) aliphatic, heteroaliphatic or heteroolefinic alkyl, mono- or polyunsaturated alkyl or heteroalkyl systems substituted or unsubstituted, linear or branched, (3) aliphatic mono- or polycyclic, aryl or heterocyclic, substituted or unsubstituted systems, or (4) substituted or unsubstituted mono-, poly- or perfluoroalkyl systems; the systems of (2), (3) and (4) comprise from 1 to 10 carbon atoms and from 0 to 5 heteroatoms selected from O, S, N, P and Si; and wherein X is a halogen selected from the group comprising F, Cl, Br and I.

Preferred substituents for use herein include those having a Hammett Sigma Para (s?) Value of -0.65 to +0.75, preferably -0.4 to +0.5. The sigma values of Hammet are described in "Advanced Organic Chemistry - Reactions, Mechanisms and Structure" (Advanced Organic Chemistry - Reactions, Mechanisms and Structures), (Jerry March, 5th edition, 2001) on pages 368-375). Unrestrained by theory, it is believed that substituents having sigma values in the selected ranges, when substituted in R1 or R2, can improve the toxicological profile of the compound without unduly adding an unfavorable increase in molecular weight that could interfere with the ability of the molecule to penetrate the hair shaft. Some preferred substituents and their sigma Para values of Hammet are shown below in Table A. Additional substituents and their values are shown in March, on page 370.

Table A Preferably, the radical scavengers described above have a pKa of more than 7 to avoid protonation of nitrogen. Preferably, the present invention does not comprise radical scavengers according to the general formula (II): (ll) wherein R ,, R2, Ra, R4 and R5 are each, independently, selected from H, COO "M +, Cl, Br, S03 +, N02, OCH3, OH or a primary or secondary C1 to C10 alkyl, and M is H or alkali metal Preferably, the radical scavengers described above have a pKa of more than 8.5 to ensure protonation of the hydroxy group Preferably, the present invention does not comprise radical scavengers according to those selected from group (III) benzylamine, imidazole, di-tert-butylhydroxytoluene, hydroquinone, guanine, pyrazine, piperidine, morpholine, methylmorpholine, 2-methoxyethylamine and mixtures thereof Even more preferably, the invention herein does not comprise radical scavengers which are defined as a species which can react with a carbonate radical to convert the carbonate radical by means of a series of rapid reactions in a less reactive species, that is, a carbonate radical scavenger. believes that the ability of the radical scavenger to convert the carbonate radical (as described above) depends on the energy of the charge transfer reaction, as demonstrated below: (the calculation of the energy of the transfer reaction of charge is detailed later.) Debugger + C03? Debugger + + C032 The energy of the reaction is defined by: - G = AHf (products) - AHf (reactants) AHf (Scrubber **) + AHf (C032") - AHf (Scrubber) - AH, (C03 *") In accordance with the present invention, the composition does not comprise a radical scavenger with a reaction energy of about 0 kJ / mol (0 kcal / mol) to about 57 kJ / mol (14 kcal / mol), preferably from about 6.3 kJ / mol (1.5 kcal / mol) to about 38 kJ / mol (9 kcal / mol).

Additional Components The compositions of the present invention may further comprise additional ingredients including, but not limited to, hair dyeing agents such as oxidative dye precursors, non-oxidative dyes, thickeners, solvents, enzymes, surfactants, conditioning agents, carriers, antioxidants, stabilizers, chelating agents, active permanents, perfume, reducing agents (thiolactic acid), hair bulking agents and polymers. Some of these additional components are detailed below.

Hair colorants The hair colorant compositions of the present invention may also comprise hair dye materials. These compositions comprise hair oxidation dye precursors (also known as primary intermediates) that will provide a variety of colors to the hair. These small molecules are activated by the oxidizing agent and react with other molecules to form a larger colored complex on the hair shaft. The precursors can be used alone or in combination with other precursors, and one or more may be used in combination with one or more coupling agents. Generally, coupling agents (also known as color modifiers or secondary intermediates) are colorless molecules that can form colors in the presence of activated precursors and are used with other precursors or coupling agents to generate specific color effects or to stabilize the color . The choice of precursors and coupling agents will be determined by the color, tone and intensity of the coloring desired. Herein precursors and coupling agents can be used, either alone or in combination, to provide dyes having a variety of shades, ranging from blond ash to black. These compounds are well known in the industry, and include aromatic diamines, aminophenols, and their derivatives (a representative but non-limiting list of the oxidation dye precursor can be found in the Sagarin publication, "Cosmetic Science and Technology". of cosmetics), "Interscience", Special Edition Volume 2, pp. 308-310). It should be understood that the precursors listed below are illustrative only and are not intended to limit the compositions and processes herein. These are: 1, 7-dihydroxynaphthalene (1,7-naphthalenediol), 1,3-diaminobenzene (m-phenylenediamine), -methyl-2,5-diaminobenzene (toluene-2,5-diamine), 1,4-diaminobenzene (p-phenylenediamine), 1,3-dihydroxybenzene (resorcinol), 1,3-dihydroxy-4-chlorobenzene, (4-chlororesorcinol), 1-hydroxy-2-aminobenzene, (o-aminophenol), 1-hydroxy-3 -aminobenzene (m-aminophenol), 1-hydroxy-4-aminobenzene (p-aminophenol), 1-hydroxynaphthalene (1-naphthol), 1,5-dihydroxynaphthalene (1,5-naphthalenediol), 2,7-dihydroxynaphthalene (2) , 7-naphthalenediol) 1-hydroxy-2,4-diaminobenzene (4-diaminophenol), 1,4-dihydroxybenzene (hydroquinone), 1-hydroxy-4-methylaminobenzene (p-methylaminophenol), 6-hydroxybenzomorpholine (hydroxybenzomorpholine), 1 -methyl-2-hydroxy-4-aminobenzene (4-amino-2-hydroxytoluene), 3,4-diaminobenzoic acid (3,4-diaminobenzoic acid), 1-methyl-2-hydroxy-4- (2'-hydroxyethyl) ) aminobenzene (2-methyl-5-hydroxyethylaminophenol), 1,4-trihydroxybenzene (1, 2,4-trihydroxybenzene), 1-phenol-3-methylpyrazol-5-one (phenyl) ethylpyrazole), 1- (2'-hydroxyethyloxy) -2,4-d-aminobenzene (2,4-diaminophenoxy ethanol HCL), 1-hydroxy-3-amino-2,4-dichlorobenzene (3-amino-2,4) -dichlorophenol), 1,3-dihydroxy-2-methylbenzene (2-methyl resorcinol), 1-amino-4-bis- (2'-hydroxyethyl) aminobenzene (N, N-bis (2-hydroxyethyl) -p-phenylenediamine ), 2,4,5,6-Tetraaminopyrimidine (HC Red 16), 1-hydroxy-3-methyl-4-aminobenzene (4-amino-m-cresol), 1-hydroxy-2-amino-5-methylbenzene ( 6-amino-m-cresol), 1,3-bis- (2,4-diaminophenoxy) propane (1,3-bis- (2,4-diaminophenoxy) -propane), 1- (2'-hydroxyethyl) - 2,5-diaminobenzene (hydroxyethyl-p-phenylenediamine sulfate), 1-methoxy-2-amino-4- (2'-hydroxyethylamino) benzene, (2-amino-4-hydroxyletylaminoanisole) 1-hydroxy-2-methyl- 5-amino-6-chlorobenzene (5-amino-6-chloro-o-cresol), 1-hydroxy-2-amino-6-methylbenzene (6-amino-o-cresol), 1- (2'-hydroxyethyl) -amino-3,4-methylenedioxybenzene (hydroxyethyl-3,4-methylenedioxyaniline HCI), 2,6-dihydroxy-3,4-dimethylpyridine (2,6-dihydroxy-3,4-dimethylpyridine), 3,5-diamino -2,6-dimethoxypyr idine (2,6-dimethoxy-3,5-pyridinediamine), 5,6-dihydroxyindole (, dihydroxy-indole), 4-amino-2-aminomethylphenol (2-aminoethyl-p-aminophenol HCl), 2,4-diamino -5-methylphenethol (2,4-diamino-5-methyl-phenetol HCl), 2,4-diamino-5- (2'-hydroxyethyl-oxy) toluene (2,4-diamino-5-methylphenoxyethanol HCl), 5-amino -4-chloro-2-methylphenol (5-amino-4-chloro-o-cresol), 4-amino-1-hydroxy-2- (2'-hydroxyethylaminomethyl) benzene hydroxyethylaminomethyl-p-aminophenol HCl), 4-amino -1-hydroxy-2-methoxymethylbenzene (2-methoxymethyl-p-aminophenol HCl), 1,3-bis (N (2-hydroxyethyl) N (4-amino-phenyl) amino) -2-propanol (hydroxypropyl-bis- (N-hydroxyethyl-p-phenylenediamine) HCL), 6-hydroxyindole (6-hydroxyindole), 2,3-indolinadione (isatin), S-amino ^ -methylamino-6-methoxypyridine (HC Blue no. 7), 1-phenyl-3-methyl-5-pyrazolone-2,4-dihydro-5,2-phenyl-3H-pyrazol-3-one, 2-amino-3-hydroxypyridine (2-amino-3-hydroxypyridine), 5-amino salicylic acid, 1-methyl-2,6-bis (2-hydroxy-ethylamino) benzene (2,6-hydroxyethylamino-toluene), 4-hydroxy-2,5,6-triaminopyrimidine (sulfate of 2,5 , 6-triamino-4-pyrimidinol), 2,2 '- [1,2-ethanediyl-bis- (oxy-2,1-ethanediyloxy)] - bis-benzene-1,4-diamine (PEG-3,2 ', 2'-di-p-phenylenediamine), 5,6-dihydroxyindoline (dihydroxyindoline), N, N-dimethyl-3-ureidoaniline (m-dimethyl-amino-phenylurea), 2,4-diamino-5- fluorotoluensulfate hydrate (4-fluoro-6-methyl-m-phenylenediamine sulfate) and 1-acetoxy-2-methylnaphthalene (1-hydroxyethyl-4,5-diaminopyrazol sulfate). These can be used in molecular form or in the form of salts compatible with peroxides. The hair coloring compositions of the present invention can also include non-oxidative hair dyes, i.e. direct dyes that can be used alone or in combination with the oxidative dyes described above. Suitable direct dyes include azo or anthraquinone dyes and nitro derivatives of the benzene series and mixtures thereof. These direct dyes are especially useful to modify the tone or achieve enhancements. Especially preferred are Basic Red 51, Basic Orange 31, Basic Yellow 87 and mixtures thereof. The hair dye compositions of the present invention will generally comprise from about 0.001% to about 10% dyes. For example, compositions that provide a low intensity coloration, such as shades of natural blonde to light brown hair, generally comprise from about 0.001% to about 5%, preferably from about 0.1% to about 2%, with more preferably, from about 0.2% to about 1% by weight, of a colorant composition of precursors and coupling agents. Darker shades, such as chestnuts and blacks, generally comprise from about 0.001% to about 10% by weight, preferably from about 0.05% to about 7% by weight and more preferably from about 1% to about 5% of precursors and coupling agents. In addition, the compositions of the present invention may also comprise from 0.001 to 1.0% by weight of a pigment or lacquer to provide a visual indication of the hair location in which the composition was applied. Suitable pigments include, for example, ultramarine blue, yellow D & amp;; C no. 10 aluminum lacquer and mixtures of these.

Surfactants The compositions according to the present invention may also comprise at least about 0.01% of a surfactant. Suitable surfactants for use herein generally have a lipophilic chain length of from about 8 to about 30 carbon atoms and may be selected from anionic, nonionic, amphoteric and cationic surfactants, and mixtures thereof.

Polymers The composition of the present invention may further comprise, optionally, at least about 0.01% polymer. Without limitation, the polymer can be selected, for example, from associative polymers, crosslinked homopolymers of acrylic acid, crosslinked copolymers of (meth) acrylic acid and (C1-C6) alkyl acrylate or polysaccharides. The polymer can be useful as a thickening agent and also as conditioning agents, as described below. The polymer will generally be used in concentrations from about 0.01% to about 20.0%, by weight of the composition, preferably from about 0.1% to about 5%.

Conditioning agent The compositions of the present invention may comprise or be used in combination with a composition comprising a conditioning agent. Suitable conditioning agents for use herein are selected from silicone materials, aminosilicones, fatty alcohols, polymeric resins, carboxylic acid and polyol esters, cationic polymers, cationic surfactants, insoluble oils and materials derived from oils and mixtures thereof. Other materials include mineral oils and other oils, such as glycerin and sorbitol. Especially useful conditioning materials are cationic polymers and silicones. The cationic conditioning polymers may be selected from those comprising units of at least one amine group selected from primary, secondary, tertiary and quaternary amine groups which may be part of the main polymer chain or be in a side substituent directly attached to the polymer chain principal. The silicones may be selected from polyalkylsiloxane oils, linear polydimethylsiloxane oils containing trimethylsilyl or hydroxydimethylsiloxane end groups, polymethylphenylsiloxane oils, polydimethylphenylsiloxane or polydimethyldiphenylsiloxane, silicone resins, organofunctional siloxanes having in their general structure one or more organofunctional groups, the same or different , directly linked to the siloxane chain or mixtures thereof. The organofunctional group (s) are selected from: polyethyleneoxy or polypropyleneoxy groups, (per) fluorinated groups, thiol groups, substituted or unsubstituted amino groups, carboxylate groups, hydroxylated groups, alkoxylated groups, quaternary ammonium groups, amphoteric and betaine groups. The silicone can be used as a pure fluid or in the form of a preformed emulsion. Generally, the conditioning agent is used in concentrations of from about 0.05% to about 20% by weight of the composition, preferably from about 0.1% to about 15%, more preferably, from about 0.2% to about 10%, even with more preferably, from about 0.2% to about 2%.

Chelants In accordance with the present invention, the compositions may comprise chelants. Chelants are well known in the industry and relate to a molecule or a mixture of different molecules, each capable of forming a chelate with a metal ion. Chelators are well known in the industry and a non-exhaustive list of these can be found in Martell, A. E. and Smith, R.M .: Critical Stability Constants, Vol. 1, Plenum Press, New York & London (1974) and Martell, A. E. and Hancock, R. D .: Metal Complexes in Aqueous Solution, Plenum Press, New York & amp;; London (1996), both incorporated herein by reference. Some examples of chelants suitable for use herein include EDDS (ethylenediamineadisuccinic acid), carboxylic acids (in particular, aminocarboxylic acids), phosphonic acids (in particular, aminophosphonic acids) and polyphosphoric acids (in particular, linear polyphosphoric acids). ), its salts and derivatives. Chelants can be incorporated in the composition of the present invention as stabilizers or preservatives. In addition, it has been discovered that the chelators provide benefits for protecting the hair fiber and, therefore, can be used for the purpose of further improving the profile of the present invention related to hair damage. The levels of chelators of the present invention may be as low as about 0.1%, preferably at least about 0.25% and more preferably about 0.5% for the most effective chelators, such as the diamine chelants-N.N'- dipoly acid and monoamide-N.N'-dipoly acid monoamine (e.g., EDDS). Less effective chelators are used, more preferably, in a concentration of at least about 1% and, even more preferably, greater than about 2% by weight of the composition, depending on the effectiveness of the chelant. Levels as high as approximately 10% can be used, but above this level significant formulation problems can arise.

Solvents Solvents suitable for use in the compositions of the present invention include, but are not limited to, water, butoxydiglycol, propylene glycol, (denatured) alcohol, ethoxydiglycol, isopropyl alcohol, hexylene glycol, benzyl alcohol and dipropylene glycol. Finally, the compositions according to the present invention can be supplied in any usual manner, such as, for example, an aqueous composition, a powder, a gel or an oil-in-water emulsion. A preferred form for the compositions of the present invention is a thickened solution comprising a salt tolerant thickener or an oil in water emulsion.

Method of use It is understood that the examples of the methods of use and the modalities described herein are for illustrative purposes only and that, in light of these, a person with experience in the industry may recommend various changes or modifications without departing from the scope of the present invention.

Oxidizing compositions for dyeing hair are usually sold in kits comprising individually packaged components, such as separate containers, a dye component (also called "cream dye" for emulsions or "liquid dye" for solutions) comprising the dye component. oxidant dye, the precursors and the alkalizing agent in a suitable carrier; and a hydrogen peroxide component (also referred to as "creamy hydrogen peroxide" for emulsions or "liquid hydrogen peroxide" for solutions) comprising the oxidizing agent. The consumer mixes the dye component and the hydrogen peroxide component together immediately before use and applies it to the hair. The illustrated formulations provided in the following tables illustrate these resulting mixtures. Similarly, bleaching compositions are also usually sold as a set comprising two or three individually packaged components, usually in two or three separate containers. The first component comprises the ammonium ion source (eg, ammonia), the second component comprises the oxidizing agent and the third component (optional) comprises a second oxidizing agent. The bleaching compositions are obtained by mixing the aforementioned compositions immediately before use. After working the mixture for a few minutes (to ensure that the application is uniform throughout the hair), the coloring or decolorizing oxidant composition is left in the hair for a sufficient length of time for the dyeing to occur (usually, approximately 2 to 60 minutes, preferably approximately 30 to 45 minutes). Then, the consumer rinses the hair completely with water and lets it dry. It is observed that the hair has changed from its original color to the desired color. When included in the kits for coloring and oxidative bleaching compositions, the optional conditioning agent can be provided in a third container. The three compositions can be mixed immediately before use and applied together, or the content of the third container can be applied (after an optional rinse step) as a post-treatment immediately after the coloring or decolorizing oxidant composition obtained from the content mixture of the other containers. In accordance with a method of the present invention for the oxidative coloring and decolorization of hair, it comprises the steps of applying a composition of the present invention for the oxidative coloring of hair having a pH of up to 9.5 when applied to the consumer's hair. , or a pH of up to 9.5 by at least 50% of the time period of application of the composition to the hair. Alternatively, the individual compositions may have varying pH levels so that when mixed or applied to the consumer the pH is up to 9.5. In accordance with the present invention, methods for hair coloring or discoloration also comprise embodiments by which the composition of the present invention is applied to the hair and, preferably, the mixture is worked for a few minutes (to ensure that the application is uniform throughout the hair) . The composition is then left in the hair to reveal the color for a period of time less than about 20 minutes, preferably less than about 15 minutes, more preferably, about 5 minutes to about 10 minutes, with a greater preference, for approximately 10 minutes. Next, the consumer rinses his hair well with water and lets it dry or comb it in the usual way. In accordance with another alternative embodiment of the present invention, the method for hair coloring and discoloration is a sequential method of hair coloration or oxidation discoloration comprising the steps of at least two sequential oxidative treatments for dyeing or bleaching the hair, wherein the period of time between each treatment is from 1 to 60 days, preferably from 1 to 40 days, more preferably from 1 to 28 days, even more preferably from 1 to 14 days and most preferably from 1 to 7 days. In these embodiments, the time that the composition remains in the head can be less than about 20 minutes, preferably less than about 10 minutes and most preferably is from about 2 minutes to about 5 minutes. According to another embodiment of the present invention, the method for coloring or decolorizing the hair also comprises embodiments in which the composition of the present invention is applied to the hair and, preferably, the mixture is worked for a few minutes (to ensure that the application is uniform throughout the hair). Next, the composition is left on the hair so that the color is revealed for a period of time of 10 to 45 minutes. Then, the consumer rinses his hair well with tap water before making a second application of the composition of the present invention or of a decolorizing system in selected tufts. The two-step treatment provides the consumer with an effect of highlights or reflections on their hair. Alternatively, the bleaching system can be applied before applying the coloring system. The assemblies described above are well known in the industry, and the composition of each container can be manufactured using any of the standard approaches, which include a) 'oil in water' process, b) 'phase inversion' process and c) processes of a single synthetic operation ("one pot" process). For example, in a 'one-pot' process, the polymers and the chelants would be previously dissolved in water, the fatty materials are added and then the whole composition is heated to about 70-80 ° C. Then follow a controlled cooling process and the optional mixed with shear to form the final structured product in the case of an emulsion. The addition of the materials that provide the source of peroxy monocarbonate ions, dyes and ammonia and, optionally, solvents and the adjustment of the pH complete the process of making the cream dye. In the case of a liquid solution containing acrylate polymers, these are formulated in hydrogen peroxide. The glycol solvents and the fatty components are formulated in the dye. A structured product is formed when the dye and the hydrogen peroxide components are mixed together to utilize the composition, resulting from the deprotonation of the polymeric acrylic acid groups as the pH increases, producing a polymeric microgel. U.S. Pat. 5,376,146 to Casperson et al. and 5,393,305 to Cohen et al. contain more details regarding the preparation of these two-part aqueous compositions for dyeing hair, which form a gel by mixing the two parts. The composition of the present invention can also be formulated as a 2-part aqueous composition which as a thickening agent contains polyether polyurethane (such as Aculyn® 46) as described in U.S. Pat. 6,156,076 to Casperson et al. and 6,106,578 Jones. The present invention can be used in various packaging and shipping devices. These dispatch devices can be in the form of separate devices that can be used independently or in combination with each other. In general, the dyeing or bleaching compositions for the hair are contained within containers of one or several independent compartments so that the compositions can be stored separately from one another before use. The compositions are mixed together using a mixing medium and then applied to the consumer's hair with an application medium.

The most common packaging device that can be used for the present invention includes storing the developer in a package, such as a bottle, tube, aerosol or sachet, and separately storing the dye lotion in an additional compartment within the developer package or in another container that may be identical, such as a double sachet or aerosol system, for example, or different, such as a bottle and tube system. The consumer can mix the developer lotion and the dye lotion using any means. This can simply include the use of a mixing bowl into which the lotions are poured and then mixed using, preferably, a mixing means, such as a utensil. Alternatively, this may include the addition of one of the lotions in the container of the other lotion (usually, the dye lotion is added to the developer lotion) followed by manual agitation or mixing with a utensil. Another system comprises piercing or displacing a seal located between separate compartments for the developer and dye lotion within a single container or sachet and then mixing manually within the container or in a separate or additional container. An example of these devices is the devices called "unscrew and use". These devices allow the user to unscrew the base of a container containing the dye, which opens a communication port that exposes the base of the bottle containing the dye and the top of the bottle containing the developer. The two components are mixed and the consumer presses the flexible upper portion of the bottle to dispense the product. Alternatively, more complex devices can be used by which the lotions are mixed at the start of the shipment. An example of a complex system of this type is a double aerosol system, for example, a bag inside a can or plunger. The dye and the developer are stored separately in two aerosol cans inside a device; a propellant is used to pressurize the contents of the can, or bag inside the can or plunger, and a valve to control the dosage. When the consumer activates the valve, the dye and the developer are simultaneously dispensed out of the cans and mixed by means of a static mixer just before dispensing the product on the hair. The ratio of dye and developer can be controlled by using the viscosity of the products, the pressure of the can or by altering the size of the flow channel through the valve. In addition, the product can be a foam and be supplied in the form of modeling foam. Another example of this complex system uses a double plunger and screw system. The dye and the developer are kept in separate systems of cylinders with pistons inside the system and when the consumer activates a button, two screws rotate so that the double pistons that are inside impart pressure to the liquid in the cylinders and in this way make that the products move through a mixing station and exit the nozzle for dispatch. The dye and developer ratio can be controlled by the cylinder diameter of the container. In addition, a static in-line mixer can be used to facilitate mixing and the system can be completely disposable or rechargeable. Another system uses one or more pumps that are activated manually. The product can be pre-mixed in a folding sachet. When the consumer activates the pump, the liquid that is inside it is dispensed. As the manually activated pump recovers the vertical position, it exerts force so that the product comes out of the folding sachet. Alternatively, a double system can be installed whereby two sachets and two pumps are used to supply the dye and developer lotions to the hair. Alternatively, a single pump connected to two sachets can be used to supply the product incorporating the mixing point inside the pump. Another mode uses a rigid bottle and a dip tube to connect the product to the pump system. By last, a separable layer bottle combined with a manually activated pump may be used, wherein the inner layer of the bottle is separated from the outer layer of the bottle which exerts force on the contents of the bottle for dispatch. These complex systems usually offer the advantage of applying the product regardless of the orientation of the product. The devices described above can also be used in combination with a tool for dispensing or applying the product to facilitate the application thereof on the hair. Again, these devices can be very simple, such as a nozzle attached to one of the containers or a separate applicator device, for example, a comb or brush. The combs and brushes can be adapted to achieve certain effects, for example, a quick and even cove or a retouching of the root / hairline, or for highlights or reflections. Alternatively, the container or one of the containers may be provided with a comb attached to or replacing the dispensing nozzle, whereby the product is dispensed through hollow teeth and dispensing openings located in the teeth of the comb. . The teeth of the comb can be provided with one or multiple openings along the teeth to improve the application and uniformity of the product, especially from the root to the tip. The product can be dispensed by means of mechanical pressure applied to the container, for example, bottles with separable layers or any of the mechanisms described above. The comb can be incorporated in the container to facilitate the application and can be located vertically (called vertical comb) or at an angle that allows the consumer to access all areas. All devices can be designed to be interchangeable in order to offer the consumer a range of different tools to apply the composition to the hair. The application devices can also include devices that help obtain special effects, such as combs, brushes and implements for making reflections, metal sheets and caps for making reflections. To facilitate the penetration of the product into the hair, other device technologies can be used. Some examples of technologies of this type include heating devices, ultraviolet light devices and ultrasound devices.

EXAMPLES The following examples illustrate oxidizing coloring compositions according to the present invention and the methods for making such compositions. It is understood that the examples and embodiments described in the present invention are for illustrative purposes only and that, in light of these, a person skilled in the industry will be able to recommend various changes or modifications without departing from the scope of the present invention.

Examples of emulsion formulations 1 -1 0 Examples of emulsion formulations 1 1 - 20 Examples of formulations of aqueous solutions thickened 1 -10

Claims (12)

1. A coloring or decolorizing composition for the hair; the composition comprises: i) At least one source of hydrogen peroxide ii) at least one source of carbonate, carbamate and hydrogen carbonate ions, and mixtures thereof iii) at least one source of alkalizing agent, preferably ammonium ions characterized in that the composition comprises at least more than 4% by weight of the source of hydrogen peroxide or at least more than 4% by weight of the source of carbonate, carbamate and hydrogen carbonate ions, and mixtures thereof, and in wherein the composition has a pH of up to 9.5, inclusive, and wherein the composition is free of a source of radical scavengers.

2. A hair coloring composition according to any of the preceding claims, further characterized in that the composition has a pH of 7.5 to 9.5.

3. A hair coloring or decolorizing composition according to claim 1, further characterized in that the composition comprises: a. 0.1% to 10% by weight, preferably 1% to 7% hydrogen peroxide b. from 0.1 to 10%, preferably from 0.5 to 5% by weight of the alkalizing agent c. from 0.1 to 15%, preferably from 1% to 10% by weight of at least one source of carbonate, carbamate or hydrogen carbonate ions, and mixtures thereof.

4. A hair coloring or decolorizing composition according to claim 3, further characterized in that the composition comprises a. 2% to 9% hydrogen peroxide b. from 0.1 to 10%, preferably from 0.5 to 5% by weight of the alkalizing agent c. from 4 to 15% by weight of at least one source of carbonate, carbamate and hydrogen carbonate ions.

5. A hair coloring or decolorizing composition according to claim 3, further characterized in that the composition comprises a. From 4% to 9% hydrogen peroxide b. from 0.1 to 10%, preferably from 0.5 to 5% by weight of the alkalizing agent c. from 2% to 15% by weight of at least one source of carbonate, carbamate and hydrogen carbonate ions.

6. A hair coloring or decolorizing composition according to any of the preceding claims, further characterized in that the composition also comprises at least one oxidant dye precursor and at least one preformed dye or any of them, and mixtures of these .

7. A hair coloring or decolorizing composition according to claim 6, further characterized in that the composition comprises at least one oxidative dye selected from m-aminophenol, 4-amino-2-hydroxytoluene, resorcinol, 2-methylresorcinol, 1 -naphthol, 2-amino-3-hydroxypyridine, m-phenylenediamine and mixtures thereof.

8. A coloring or decolorizing set for the hair; the assembly comprises: i) An individually packaged oxidizing component comprising at least one source of hydrogen peroxide; I) an individually packaged coloring component comprising a) at least one source of carbonate, carbamate and hydrogen carbonate ions, peroxy monocarbonate ions, and mixtures thereof, and b) at least one alkalizing agent, characterized in that the kit comprises at least 4% by weight of at least one source of hydrogen peroxide or at least one source of carbonate ions, carbamate ions and hydrogen carbonate ions, and mixtures thereof, and wherein the kit is free of a source of scrubber of radicals.

A method for the oxidative coloring or discoloration of the hair comprising the steps of applying a composition comprising at least one source of hydrogen peroxide, at least one source of carbonate, carbamate and hydrogen carbonate ions, and mixtures of these , and at least one source of alkalizing agent, characterized in that the composition comprises at least 4% by weight of the source of hydrogen peroxide or at least 4% by weight of the source of carbonate, carbamate and hydrogen carbonate ions, and mixtures thereof, and wherein the composition has a pH of up to 9.5 by at least 50% of the period of time during which the composition is applied and maintained on the hair.

10. A method for the oxidative coloration or discoloration of the hair comprising the steps of applying a composition according to any of the preceding claims, leaving the composition on the hair for 2 to 60 minutes and subsequently rinsing the hair composition. 1.

A method for the oxidative coloring or discoloration of the hair according to claim 10, further characterized in that the composition is maintained in the hair for a period of less than 20 minutes.

12. A sequential method of hair coloration or oxidative discoloration; the method comprises the steps of at least two sequential treatments of oxidative discoloration or coloration for the hair, characterized in that the period of time between each treatment is from 1 day to 60 days, and wherein each treatment comprises the steps of providing a composition according to any of the preceding claims, applying the composition to the hair, and maintaining the composition in the hair for a period of time of less than 20 minutes and then rinsing the hair to remove the composition.