MXPA99010825A - Hair colouring compositions and their use - Google Patents

Abstract

Hair colouring compositions which are of reduced harshness to skinand hair are provided which comprise:(i) one or more developers selected from aminoaromatic systems capable of being oxidised and thereafter undergoing a single electrophilic attack, and (ii) one or more couplers selected from (A) phenols and naphthols having an active leaving group in the para position relative to the hydroxy group, (B) 1,3-diketone derivatives having an active leaving group, or (C) pyrazolone derivatives having an active leaving group, such that in the presence of an oxidizing agent the or each developer reacts with the or each coupler substantially only at the position having the active leaving group, and (iii) an inorganic peroxygen agent in an amount of from about 0.0001 to about 0.05 moles per 100 g of composition. Alternative compositions may contain higher levels of oxidizing agent provided that they have a pH below 6.

Description

COMPOSITIONS TO COLOR HAIR AND ITS USE FIELD OF THE INVENTION This invention relates to new compositions for coloring the hair and to the methods for using these compositions in hair coloring processes.

BACKGROUND OF THE INVENTION The compositions are well known for providing the hair with various colors by dyeing, either to change the natural color of the hair and / or to cover the gray hair. These compositions comprise various aromatic compounds, commonly known as developers (also known as precursors or primary intermediates) together with various other aromatic compounds, commonly known as coupling agents or couplers. These are referred to as hair coloring agents by oxidation, because they require an oxidizing agent for color formation. The developers are generally 1,4-disubstituted benzene compounds, more commonly, 1,4-diaminobe-ceno compounds and the coupling agents or couplers can also be disubstituted benzene compounds, such as, for example, 1,3-benzene compounds. disubstituted The range of structures of the coupling agents or couplers is much more varied than that of the developers. During use, the compounds are subjected to oxidizing conditions in which the developers and couplers react to form the color. In general it is believed that this occurs by means of a gradual or stepwise sequence, in which the developer molecules are activated by oxidation and react with the couplers to form reactive dimers. These continue reacting then to form colorful trímeros, which no longer react more. It is believed that monomeric couplers and developers and, to a lesser extent, dimers, diffuse into the hair body during the course of the reaction, which is quite slow. When they are inside the body of the hair, the dimers react to form trimers, which are very large to spread out easily and, thus, are trapped, colored or painted hair. Standard products typically include several different developers and several different couplers, for example, up to 5 developers and 5 or more couplers. It is generally accepted that 10 to 12 different compounds are required to obtain the full range of colors. The required oxidizing conditions are normally provided by treating the hair with the hair coloring agents by oxidation and an oxidizing agent. Hydrogen peroxide is the most commonly used oxidizing agent. Normally, hair coloring compositions containing standard hair coloring agents by oxidation are formulated at high pH, frequently, from about pH 9 to about pH 12. This high pH is often supplied by a source of ammonia. Ammonia has an additional function, since it acts as a hair swelling agent (HSA). HSA's improve oxidation and coloring processes by swelling hair fibers. This aids in the diffusion of both the oxidizing agent and the hair coloring agents by oxidation to the interior of the hair, which allows a faster and deeper oxidation of the coloring agent and the hair coloring. Unfortunately, this system, although effective and commercially successful, has several disadvantages. First, the developers can react with each other, as well as with couplers and reactive dimers can react with the developers and couplers. In this way, the chemistry of the reaction is not defined and, it is not possible to predict precisely which compounds will be present in the hair at the end of the color-forming reaction. The exact composition of the colorful molecules formed in the hair can vary from one process to another, in accordance with the prevailing conditions. Therefore, the colors obtained may eventually vary between applications. An additional disadvantage is the discoloration of the color over time. A factor that contributes to discoloration is the lack of firmness to wash. The colorful trimeric molecules produced tend to be soluble in water and in other solvents. Consequently, they tend to be leached from the hair after repeated washing and from applications of, for example, hair sprays and other hair care products. This leads to discoloration or gradual change of the applied color. The action of other factors such as ultraviolet light, combing or brushing and perspiration also affect color. The use of high levels of hydrogen peroxide also has disadvantages. As it reacts with the oxidative coloring components, hydrogen peroxide can also oxidize the disulphide bonds of the P920 hair. This can lead to undesirable effects on the hair, such as frailty and mistreatment of the hair. These problems arise at least partially, because it is necessary to use a relatively high concentration of the oxidant solution, in order to provide effective oxidation of the standard agents to color the hair by oxidation, usually between about 20% and about 40% in volume of oxygen, ie, from about 6 to 12% by weight, based on the concentration of the component, as supplied to the consumer, which contains the oxidizing agent. An additional problem arises from the fact that the oxidation reaction includes two stages. Thus, sufficient oxidant agent must be present in the hair dye composition to induce the two oxidation steps. When hydrogen peroxide is used, it is often at a concentration of about 3% by weight in the treatment solution that is applied to the hair. Normal hair coloring processes require a long exposure (from 10 to 60 minutes) of the hair to the coloring composition. In these harsh conditions of high oxidizing agent, damage to hair can occur, for example, by the oxidation of hair disulfide bonds. The inclusion of high levels of ammonia or P920 other bases can also lead to skin irritation and mistreatment of the hair. Ammonia and other bases also tend to swell the skin, as well as the hair, thus promoting the staining of the skin, as well as hair coloring. Additionally, ammonia has an undesirable odor and can lead to tear-jerking effects. The existence of high pH conditions that are normally necessary for coloring materials by standard oxidation, can also lead to mistreating the hair. These problems have existed in commercial products for many years and have not yet been resolved. GB 1,025,916 discloses certain developers and couplers of different types. Describes developers that are N, N-disubstituted phenylenediamine derivatives. Three kinds of couplers are described. Some phenol-based couplers are said to provide a blue color, some derivatives R-CO-CH2-COR is said to provide a yellow color and some pyrazolone derivatives are said to provide a red color. These combinations are advantageous since the developers do not react with themselves and can react with each coupler only in one way, P920 so that the final chemistry of the dye obtained is very narrowly defined and highly predictable. GB 1,025,916 describes mixed pairs of couplers, for example red with blue, blue with yellow, etc. in order to obtain shades between the colors obtained with any of the couplers used individually. Various examples of hair dyeing are described using couplers and developers mentioned above. In some examples, the developer is applied and left for a period of time, followed by the application of the coupler, which is left for a period of time and then followed by the application of the oxidizing agent. Most examples describe the mixing developer, coupler and hydrogen peroxide as oxidizing agents and then apply the mixture to the hair. This is then left for a period of time, usually 20 minutes, and the hair is rinsed. The latter method is the standard method for applying commercially available hair dyes containing hair coloring agents by oxidation. These are usually supplied in a package that contains two bottles. One contains the developers and couplers and the other contains the oxidizing agent. These are mixed before applying the mixture to the hair.

P920 All the described examples of GB 1, 025,916 use the conditions to color the hair by standard oxidation of high pH (at least pH 10 in all cases), high content of ammonia or caustic soda and high levels of oxidizing agent (approximately 3% by weight of hydrogen peroxide in the applied solution). Therefore, the methods described in GB 1,025,916, still suffer from the problems of embrittlement and mistreatment of the hair and irritation and staining of the skin, found with the standard oxidation dyeing systems.

SUMMARY OF THE INVENTION It would be desirable to be able to provide a system for coloring the hair in which the final color produced is predictable and controllable but, which also reduces the embrittlement and mistreatment of the hair and has the potential to reduce the staining and irritation of the skin. . According to a first aspect of the invention we provide a hair coloring composition comprising: (i) one or more developers selected from the aromatic amino systems capable of oxidation and subsequently suffering a single electrophilic attack; and (ii) one or more couplers selected from: (A) phenols and naphthols having an active leaving group in the para position relative to the hydroxyl group, (B) 1,3-diketones containing the group wherein Z is an active leaving group; and (C) compounds that contain the group wherein Z is an active leaving group, and X is an active leaving group or a non-leaving substituent; so that in the presence of an oxidizing agent each developer or developer reacts with each coupler or with the coupler essentially only in the positions having the active leaving groups Z and, if Z is an active leaving group, with X; and (iii) oxidizing but inorganic oxygenated agent in an amount of from about 0.0001 to about 0.05 moles per 100g of the composition.

DETAILED DESCRIPTION OF THE PREFERRED MODALITIES In the invention, the developer is an aromatic amino compound having a structure such that it has the ability to be oxidized by an oxidizing agent. The structure is also such that the oxidized developer has the ability to be subjected to electrophilic attack by another molecule. In other words, the structure of the developer is such that it reacts practically only in one position, which is usually an amine. Suitable developers of this type include aromatic amino systems in which there is only one primary amine group, in which the reaction occurs, other amine groups and other reactive groups are protected by blocking substituents. The three types of coupler defined are such that in the presence of an oxidizing agent they are each coupled with the developer only in one position, so that they only produce a resulting colored dimer. The defined developer also reacts only in one position. We believe that, the formation of color is by reaction of one or two molecules of the developer with a molecule of the coupler to form a dimer or colorful trimer.Dimemers or trimemes are not reactive and subsequently no reaction occurs. In addition, the colored molecules formed are very pure, and with the knowledge of the developer and coupler molecules present in the reaction system, it is possible to predict closely and accurately the final combination of colored molecules and, hence, the final overall color that will be produced.These are significant advantages compared to standard oxidation dye systems.In addition, the colored molecules formed have, in the hair, a significantly reduced water solubility, as compared to the trimers formed in standard oxidative coloring systems, which helps to obtain an increase in resistance to washing. We have found that the reaction between the defined developer and the defined couplers is potentially very fast and efficient. This has the potential of hair coloring systems that do not require long exposure times that have been the norm to produce a deep and lasting coloration. Additionally, we have found that, surprisingly, it is possible to use the developers and P920 couplers defined to provide compositions containing very low levels of inorganic peroxygen oxidizing agent which nevertheless provides fast and effective hair coloring. As a result, mistreatment of hair is reduced. We have also found that with the use of low levels of the oxidizing agent, as defined, opens the possibility of using low pH systems. This allows the possibility of reducing the levels of ammonia and even the total elimination of ammonia and consequent reductions in undesirable odor, tear effects, irritation and staining of the skin and mistreatment of the hair. An additional benefit of the composition of the invention resides in the fact that the reduction in the levels of the oxidizing agent can lead to a more economical product. Some suitable coupling molecules (A), (B) and (C) are known in the field of photography, as are some suitable developers. When they are reacted with a developer molecule, the couplers (A) provide a cyan color, the couplers (B) provide a yellow color and the couplers (C) provide a magenta color. Each coupler contains one entity of one P920 specific formula that has an active leaving group Z at a defined site. By an "active outgoing group" we mean any group that can be removed (under the conditions prevailing during the process of dyeing the hair) so that the developer reacts in that position in the coupling molecule. The bond formed between the coupling molecule and the developer is formed at the site of the active leaving group. Examples of active leaving groups are H, PhO, Cl, Br, alkoxy (RO), such as phenoxy PhO and RS-; wherein R is alkyl to aryl, but any leaving group leaving during the reaction in order to allow coupling between the developer and the coupler will be suitable. If X is an active outgoing group this may be any of those mentioned above for Z. The couplers (A) provide a cyan color. The intensity or particular hue of the color can be varied by varying the substituents of the phenol or naphthol molecule. This molecule has an active leaving group in the position for the OH group. This group can be an active proton, ie the aromatic ring is not substituted in the para position and other ring substituents do not have properties necessary to reduce the reactivity in this position. In general, couplers (A) have the formula P920 I, following: where Z is H or another active leaving group. Preferably Z is H. R1, R2, R3 and R4 are, independently, H, OH, C02H, -C02R, F, Cl, Br, -CN, -N02, -CF3 cycloalkyl, alkenyl, cycloalkenyl, aryl, alkaryl, aralkyl, NH2, -NHR, -NHCOR, -NR2, -NHCOR, -R'NHCOR, -CONHR-R 'CONHR, -R'OH, -S02R, S02NHR, -R'S02R, -R'S02NHR, -S03H , -OR, -R'OR or -COR, in any of which R is H, alkyl, cycloalkyl, alkenyl, cycloalkenyl, aryl, alkaryl or aralkyl and R 'is alkylene, alkenylene, cycloalkylene, cycloalkenylene, arylene, alkarylene or aralkylene or substituted versions of any of these. Additionally, R1 and R2 can together form a substituted or unsubstituted cycloalkyl, cycloalkenyl or aryl group. Substituent groups include OH, -OR, Cl, Br, F, -C02H, -C02R, -NH2 and -COR. In this specification, unless otherwise stated, the alkyl and alkenyl groups are usually C ^.

P920 8, usually C14, the cycloalkyl and cycloalkenyl groups are usually C5_8, usually Cs, the aryl or ar-groups are usually phenyl or naphthyl and the ale entity in alkaryl is usually C ^ Cg, usually For the coupler (A) it is preferred that when R1, R2, R3 or R4 is alkyl it is selected from methyl, ethyl, n-propyl, i-propyl and t-butyl. When R is alkyl it is preferred that one of these groups and when R 'is alkylene it is preferably derived from one of these groups. The substituents R1 and R2 can form a second benzene ring, so that the coupler (A) is a naphthol derivative of the formula II, as follows: In this case R3 and R4 is preferably H and the developer is α-naphthol. In other suitable couplers (A) of the formula II, R4 is H and R3 is P920 The suitable couplers (A) therefore have the formula II or IV, as follows: The coupler (A) can be a naphthol that has no solubilizing substituents (other than Z), in particular it has no substituents -COOH or -OH. The naphthols are preferably unsubstituted. We find that the couplers of this formula II, in particular when R3 and R4 are H, and especially when Z is H, have a particularly advantageous combination of properties to improve the firmness to washing, while allowing rapid coloring, when the hair which is going to be colored has suffered damage, for example by applying permanent or bleaches. We consider that this is because their molecules have a structure such that as monomers they are small enough to easily diffuse into the body of the hair (which, when P920 damaged is rather porous) but as dimers are trapped _in the body of the hair. further, their solubility in water is sufficiently low so that they can not be readily removed by washing during the subsequent processes of hair treatment. Preferred couplers have the formula I wherein R1, R2, R3 and R4 are independently selected from OH, H, methyl, ethyl, n-propyl, i-propyl, t-butyl, NH2, -C02H and -COR. In these preferred couplers (A) Z is H. A preferred coupler of this preferred type is 3-amino phenol. We found that these preferred couplers show particularly good performance on damaged hair. They show good color absorption _ and good firmness against washing. In all the above formulas Z is an active leaving group. Suitable examples are H, PhO, Cl and Br but any other group that reactions can similarly be used (under the conditions of hair dyeing reaction). If Z is PhO, Cl or Br the reactivity of the coupler may tend to increase in comparison with the couplers where Z is H. In any of the above formulas, unless otherwise stated, the defined groups may also contain any substituents. noninterference, P920 that is any group that does not impede the coupling reaction between the developer and the coupler. In particular, the phenyl and naphthyl groups may be substituted. Suitable non-interfering substituents include C02H, CH3, S02, NHCH3, S03H, C1.3 alkyl such as ethyl or propyl, and CONHR wherein R is preferably C1_3alkyl. The alkyl substituents and CONHR have the advantage that the solubility of the final colored molecule is reduced. The phenyl groups may contain one or more substituents that are the same or different. If the phenyl groups are substituted, mono substitution is preferred. Preferably, the groups are not replaced unless otherwise stated. The yellow couplers (B) contain the group 1, 3-decetonate where Z is an active leaving group. In general, they have the following formula V: P920 wherein R5 and R6 are, independently, H, alkyl, cycloalkyl, alkenyl, cycloalkenyl, aryl, alkaryl, aralkyl, -R "NHCOR, -R 'CONHR, -ROH, -R'C02R, -R'C02NHR, - NHCOR, -NR2, -NHR, -NH2, -R'OR and -OR In these groups R can be H, alkenyl, cycloalkyl, alkenyl, cycloalkenyl, aryl, alkaryl, or aralkyl and R 'is alkylene, cycloalkylene, alkenylene cycloalkenylene, arylene, alkarylene or aralkylene Substituted versions of any of these may be used Suitable substituents include OH, -OR, Cl, Br, F, C02H, -C02R, -NH2 and -COR In some preferred formulas, at least one of R5 and R6 contains an aryl group Some couplers (B) are of the following formula VI: In this formula R 5 can be, for example, methyl, phenyl, t-butyl or N (CH 3) CH 2 CH 2 OH. When R5 is tertiary butyl, advantages arise from the fact that the colored dimer produced has a particularly good resistance to its disintegration against light. R5 can also be phenyl. In formula VI it may be preferred that the N-phenyl does not contain solubilized substituents. In particular, it may be preferred that it does not contain substituents -COOH or -OH. Preferably, the N-phenyl is unsubstituted. In the formulas in which R5 is also phenyl it may be preferred that the phenyl of R5 is free of solubilising substituents, in particular free of -COOH and -OH and more preferably not substituted. We find that the couplers of the formula VI can have a particularly advantageous combination of properties to improve the firmness to washing while allowing rapid coloring, in particular for damaged hair. We consider that this is because their molecules have a structure such that monomers are small enough to easily diffuse into the damaged and porous hair body but, as dimers are trapped inside the body of the hair. In addition, its solubility is such that it is not easily removed by washing during the subsequent processes of hair treatment. In other preferred couplers (B) R5 is methyl, ethyl, n-propyl, i-propyl, t-butyl or phenyl (especially methyl) and R6_ is NR2 wherein the R groups are the same or different and can be R as noted above, in particular methyl, ethyl, n-propyl, i-propyl, t-butyl or phenyl (especially ethyl).

P920 In other suitable preferred couplers (B) R5 and R6 are, independently, short chain alkyl (C ^) such as methyl, ethyl, i-propyl, n-propyl or t-butyl or short chain alkoxy (C14) such as methoxy or ethoxy. In particular R 5 is C 1-4 alkyl (especially methyl) and R 6 is C 1 alkyl (especially methyl (or C 1-4 alkoxy (especially methoxy).) In these formulas, the alkyl groups may advantageously be hydroxylated to produce, for example, hydroxymethyl ( usually 2-hydroethyl), hydroxyethyl, hydroxypropyl or hydroxybutyl The couplers (B) of these latter types in particular are advantageous for the coloring of both damaged and undamaged hair.An undamaged hair show rapid color absorption without loss of color. the firmness in front of the wash, they also show good firmness against washing in damaged hair, in formulas V and VI, Z can be any of the outgoing groups indicated for Z in the coupler (A) above. Preferably Z is H. In any of the above formulas, unless otherwise stated, the defined groups may also contain any non-interfering substituents, i.e., any group that does not prevent the coupling reaction between the developer and the coupler. . In particular, the phenyl and naphthyl groups may be substituted. Suitable non-interfering substituents include C02H, CH3, S02, NHCH3, S03H, C1_3 alkyl such as ethyl or propyl, and CONHR, where R is preferably C13. The alkyl substituents and CONHR have the advantage that the solubility of the final colored molecule is reduced. The phenyl groups may contain one or more substituents that are the same or different. If the phenyl groups are substituted, mono-substitution is preferred. Preferably the groups are not substituted unless otherwise stated. The couplers (C) are pyrazolone derivatives, that is, they contain the group wherein Z is an active leaving group and X is an active leaving group or a non-leaving substituent. Normally X is a non-salient substituent and are of the following formula VII: P920 wherein R7 can be H, OH, -C02H, -C02R, F, Cl, Br, -CN, -N02, -CF3, alkyl, cycloalkyl, alkenyl, cycloalkenyl, aryl, alkaryl, aralkyl, -NH2, -NHR , -NR2, -NHCOR, R 'NHCOR, -CONHR-R' CONHR, -R'OH, -S02R, S02NHR, -R'S02R, -R'S02NHR, -SO3H, -OR, -R'OR or - COR. R8 can be H, alkyl, alkenyl, cycloalkyl, cycloalkenyl, aryl, alkaryl, aralkyl, -R 'NHCOR, R' CONHR, -R'OH, -R'S02R, -R'S02NHR, or -R'OR. R is H, alkyl, cycloalkyl, alkenyl, cycloalkenyl, aryl, alkaryl or aralkyl and R 'is alkylene, cycloalkylene, alkenylene, cycloalkenylene, arylene, alkarylene or aralkylene (or substituted versions of any of these). Suitable substituent groups include OH, -OR, Cl, Br, F, C02H, -C02R, -NH2 and -COR. For example, R7 can be H or methyl. Alternatively it can be -NHR or -NHCOR wherein R is alkyl, cycloalkyl, alkenyl, cycloalkenyl, aryl, alkaryl or aralkyl. Advantageously R7 is H, lower alkyl. { C ^ for example methyl, ethyl, n-propyl, i-propyl or t-butyl or substituted or unsubstituted phenyl, in particular H, methyl or methylphenyl. R8 is advantageously H, lower alkyl (C1-4) for example methyl, ethyl, n-propyl, i-propyl or t-butyl, or P920 substituted or unsubstituted phenyl. When it is phenyl, it may be preferred that it be a free phenyl of solubilizing substituents, in particular substituents -COOH and -OH. The substituents m-S03H and p-S03H can be used. When R8 is phenyl it may preferably be unsubstituted. R8 may also preferably be H, phenyl or methyl. In contrast, the couplers of these latter formulas have a particularly advantageous combination of properties to improve the fastness to washing while allowing rapid coloring, especially in undamaged hair. We consider that this is due to the fact that its molecule has a structure such that monomers are small enough to easily diffuse into the body of undamaged hair but as dimers are trapped inside the body of the hair. In addition, their solubility is such that they can not be easily removed by washing during the subsequent processes of hair treatment. ~ The appropriate couplers (C) have the formula VIII below: P920 where R9 is preferably In formulas VII and VIII Z may be any of the leaving groups indicated for Z in the couplers (A) and (B) above. In any of the above formulas, unless otherwise stated, the groups listed may also contain any non-interfering substituents, i.e. any group that does not prevent the coupling reaction between the developer and the coupler. In particular, the phenyl and naphthyl groups may be substituted. Suitable non-interfering substituents include C02H, CH3, S02, NHCH3, S03H, C13 alkyl such as ethyl or propyl, and CONHR wherein R is preferably Cx_3 alkyl. The alkyl substituents and CONHR have the advantage that the solubility of the final colored molecule is reduced. The phenyl groups may contain one or more substituents that are the same or P920 different. If the phenyl groups are substituted, mono substitution is preferred. Preferred groups are not substituted unless otherwise stated. Specific examples of the couplers (A) include α-naphthol, 3-aminophenol and the compounds having the following structural formulas: Specific examples of the couplers (B) include benzoylacetanilide, acetoacetanilide, N, N-diethyl and N, N-dimethyl acetoacetamide and the compounds of the formulas O or OEt P920 Specific examples of couplers (C) include pyrazolone with structural formula: and compounds having the same formula except that Ph is replaced by H or methyl and / or Me is replaced by H and the compounds having the following structural formulas: P920 Any of the couplers discussed above can be used in the form of a salt, for example sulfate, phosphate and hydrochloride, in particular sulfate or hydrochloride. Compounds containing free amine groups are preferably used in the form of their salt. The salt form of these compounds forms a powder and is usually more stable than the free base form. The solubility of the couplers and their structure should be selected such that they are sufficiently soluble to be formulated in a suitable application form, which can be aqueous, and can have a solubility and size that can diffuse sufficiently rapidly into the hair body. We find as a general rule that couplers of low solubility and a large molecule size tend to diffuse fast enough to damaged hair. We found that smaller, more soluble molecules are particularly suitable for undamaged hair. In addition, the final colored molecule produced must be of a size and solubility that is not easily removed by washing the body of the hair. Once again, we found that larger and more insoluble colored molecules provide better resistance to washing in damaged hair and smaller molecules and more P920 solubles provide good firmness against washing in undamaged hair. The composition of the invention may contain one or more of the couplers (A), (B) and (C) combined with the defined developer and the antioxidant. A particular advantage of the use of these particular couplers is that it is possible to obtain the full range of colors using only three specific types of coupler and one type of developer. Preferably, the composition contains at least two of the three types of coupler. In particular, it contains at least one coupler (B) or (C). More preferably, it contains at least one coupler of each of types (A), (B) and (C). In some preferred compositions no more than two and even a single compound of any of these or the three types (A), (B) and (C) are included. This allows the couplers to be supplied in the form of a mixture having the required amounts of each type of coupler to develop any desired color. Alternatively, this also makes it possible to supply the coupler materials packaged separately, so that the consumer can control the eventual color that is obtained by mixing the correct amounts of each coupler to form the composition. - Normally, the coupler is present in the P920 composition in a total amount of from 0.01% to 5 or 10% by weight, based on the total weight of the composition applied to the hair. Preferably, the total coupler amounts are at least 0.01% by weight, frequently, at least 0.1 or 1%. Preferably, these are no more than 6% and, in some preferred processes, no more than 3%, for example, no more than 2.5%. The couplers of types (A) and (C) can be used in particularly low quantities. For example, couplers of type (A) may be used in amounts by weight based on the total weight of the composition applied to the hair, from 0.001 to 1%, preferably, 0.04 or 0.005 to 0.5%, for example, no more of 0.005% by weight. Couplers of type (C) may be used in amounts of, for example, 0.01 to 2 or 4%, preferably, 0.03 to 3% and, in some preferred compositions, up to 1 or 0.5%. Couplers of type (B) are frequently used in larger quantities, for example 0.05 to 3 or 4% by weight, for example up to 5 to 6% and in some preferred compositions of 0.1 to 2 or 3% by weight. The developer is an aromatic amino compound with the ability to be oxidized and subjected to a single electrophilic attack in the oxidized state. For example, it may be an aromatic system containing a single amine substituent P920 primary. The developer is such that it reacts practically only in one position (normally, the amine position). In some cases, the structure of the developer may be such that it is possible for it to react with other developer molecules but, preferably, it reacts with coupler molecules. Preferably, the structure of the developer is such that it practically does not undergo any reaction with other developer molecules. Suitable developers include o-nitro and p-nitro a-naphthylamines of the formula Other suitable developers include o- and p-nitrophenylamines H2N-Ph-N02, N, N-disubstituted o-phenylenediamines and N, N-disubstituted p-phenylenediamines. The developer can be a N, N-disubstituted p-phenylenediamine. These developers have an amine group protected by disubstitution and which reacts only in the primary amine group. In this case, this normally has the formula IX, as follows: P920 11 1" wherein R10 and R11 are each independently H, alkyl, cycloalkyl, alkenyl, cycloalkenyl, aryl, alkaryl, aralkyl, -R 'NHCOR, -R' CONHR, -R'OH, -R'S02R, -R'S02NHR or -R'OR, in which R e_s alkyl, cycloalkyl, alkenyl, cycloalkenyl, aryl, alkaryl, aralkyl and R 1 is alkylene, cycloalkylene, alkenylene, cycloalkenylene, arylene, alkarylene or aralkylene or substituted versions of any of these. Suitable substituent groups include OH, -OR, Cl, Br, F, -C02H, -C02R, -OR and -COR. Alternatively, R10 and R11 can together form a substituted or unsubstituted cycloalkyl, cycloalkenyl or aryl ring. Preferably, R 10 and R 11 are, independently, C 1 -alkyl, preferably -CH 3, -CH 2 CH 3 or i-propyl; C 4 hydroxyalkyl, preferably, -CH 2 CH 2 OH; alkylene alkoxy, preferably ethyl methoxy (-CH2CH2OCH2); or R1S02NHR12 or R12NHS02R12 wherein R12 is C ^ alkyl, for example, -CH2CH2, S02NHCH3 or -CH2CH2NHS02CH3. Particularly preferred developers of the above formula IX are those in which R10 and R11 are P920 both -CH, CH3 or R10 is -CH-CH, and R11 is -CH2CH2NHS02CH3. It is believed that the last R substituent contributes to dermatological compatibility. In other suitable developers, R10 is ethyl and R11 is hydroxyethyl; or R10 is ethyl and R11 is -CH2CH2OCH3; or R10 is selected from H, methyl, ethyl and propyl and R11 is selected from methyl, ethyl and propyl. In general, the developer can be selected from the compounds having the general formula X: Group Y is a blocking group that ensures that the reaction (under the conditions of hair dyeing) occurs only in the primary amine group. The group Y can be, for example, -NR ^ R11 (as in the previous formula IX). Other suitable Y groups include -N02, -C02H, -C02R, -COR and OH. R is as defined above for formula IX. In an alternative developer formula, the blocking group or blocking group Y is in the ortho position with respect to the amino group, providing the following formula XI.

P920 In this way, the group Y is positioned so that the developer only undergoes a reaction, in the primary amine group, to the reaction conditions. R13, R14, R15 and R16 can each be, independently, any of the groups listed for R1 to R4, above. R13 and R14 together, and / or R15 and R16 together can form a substituted or unsubstituted cycloalkyl, cycloalkenyl or aryl ring. Preferably, from R13 to R16 are, independently, H, methyl, ethyl, n-propyl, i-propyl, F, Cl, OH, -C02H, -C02R or -COR. In any of the foregoing formulas, unless otherwise indicated, the listed groups may also contain any non-interfering substituents, i.e., any group that does not hinder the coupling reaction between the developer and the coupler. In particular, the phenyl and naphthyl groups can be substituted. Suitable non-interfering substituents include C02H, CH3, S02 NHCH3, S03H, C3_3 alkyl, such as ethyl or propyl, and CONHR, wherein R is preferably C1_3 alkyl. The alkyl and CONHR substituents have the P920 advantage that the solubility of the final colorful molecule is reduced. The phenyl groups may contain one or more substituents, which are the same or different. If phenyl groups are substituted, monosubstitution is preferred. Preferably, the groups are unsubstituted, unless otherwise indicated. A preferred developer has the following formula XII, as follows: Specific examples of the developers of the invention are those of the following structural formulas: CH3CH CHj P920 CH3CH 2NHS02CH3 These are especially suitable for coloring damaged hair. Additional developers of the invention are: H0CH, CH H-, CH, 0H which tends to fade or fade more quickly than some others and M e which is very reactive Examples of additionally preferred developers, which are particularly suitable for P920 hair coloring not abused, are 2, 6-dichloro-p-aminophenol, 2-chloro-p-aminophenol, 3-chloro-p-aminophenol, 2,3-dichloro-p-aminophenol and 3, 5-methyl- p-aminophenol. The above derivatives include salts, for example, sulfate, phosphate and hydrochloride, particularly, sulfate or hydrochloride. The salts are normally formed with the amine groups. The preferred developer in which R10 is -CH.CEL and RL is CH2CH2NHS02CH3, is frequently provided in salt form as a stable powder (more stable than in the "free base" form.) We have found that these salt forms, such that they contain 3 moles of salt molecule at 2 moles of the free base molecule.A further useful salt is the hydrochloride salt of developers such as 2,6-dichloro-p-aminophenol.The developer is frequently included in the composition in amounts of from 0.01 to 5 or 7% by weight, based on the total composition applied to the hair Preferred amounts of the developer are from 0.3 to 2 or 4%, preferably 0.4 to 1.5 or 3% .We find that if the compounds developer and coupler they are sufficiently soluble in the composition, to the conditions of application to the hair, these will diffuse in the body of the hair quickly enough, however, the colored molecules produced must have a sufficient solubility low, so P920 that resist hair washes. For both developers and couplers, solubility properties can be important. The developer and coupler compounds themselves must have a solubility such that they can be formulated in the appropriate concentrations. For their application at high pH, they preferably have a solubility of at least 10, more preferably, at least 15 and most preferably, at least 20g / 100 ml of deionized water at a pH of about 10 and 25 ° C. . These may have a solubility of at least 25 g / 100 ml, and even up to 50 or 80 g / 100 ml but, usually not greater than 25 g / 100 ml. The developer and coupler compounds in general are also such that the solubility of the final dimer (or trimer if it is produced) is low in normal hair conditions and, especially, in washing conditions. Thus, the solubility (at a pH of about 8) of the final colored molecule, is preferably below 50 or 80 g / 100 ml of deionized water at 25 ° C, in particular, below 2 ° C. or 1 g / 100 ml and, most preferably, below 0.5 g / 100 ml or even, below 0.2 g / 10.0 ml. In the compositions that will be applied at high pH (for example, above pH 10), some P920 times an indication of its solubility can be provided by the pKa. Thus, if one or more of the developers and couplers, in particular the developers, has an ionizable group that is ionized practically at a pH above 9, preferably above pH 10, this is an indicator of the solubility at a pH of about 10 pH. However, in the final colorful molecule at the pH in the hair body (which is usually about pH 5.5 to 6) it becomes non-ionized. This provides an indication that under normal conditions their solubility has been reduced. This can be achieved frequently by providing at least one group having a pKa of from 8 to 12 (and, thus, ionizing above that pH) in a developer or coupler molecule and in the reaction to form a final colorful molecule, also has a pKa of from 8 to 12 (and, thus, does not ionize below that pH). The solubility can be affected by several factors but, the pKa can be a good indicator of probable solubility in some cases. We found that an advantage of the coloring compounds of the invention is that they can provide a uniform coloration and a resistance to discoloration in both battered hair and in hair without mistreating. This is particularly useful, in cases where the P920 hair has been dyed once and then allowed to grow, so that untainted hair is untreated. When it is re-dyed, the hair is not mistreated and the hair is damaged, stained and discolored, it should be colored or "dyed both and show a uniform resistance to discoloration." It is particularly important to be able to provide the damaged hair (for example, to discolored hair and / or with permanent waving and / or pre-dyed) the color, the firmness to washing and the resistance to discoloration.An advantage of the composition of the invention is that the full range of colors can be obtained by using a very small number of compounds, with the standard oxidation dyeing systems, preferably, only one or two, developer compounds are used, particularly just one, In particular, it is preferred that it be used in combination with no more than three, preferably only one or two. compounds of each of the types (A), (B) and (C). All these couplers and developers can be classified as "oxidative or oxidative" coloring agents, since they require the presence of an oxidizing agent to initiate their reaction. Preferably, these are only oxidative coloring agents present in the composition and in less than 0.1% by weight, in particular in P920 less than 0.08% by weight or less than 0.05% by weight and especially the non-oxidative coloring agents which are included and which are not of types (i) and (A), (B) and (C), preferably They have the formulas mentioned above. It is preferred that the composition does not contain more than 0. 1% by weight, preferably not more than 0.8% by weight or not more than 0.05% by weight and, especially, practically no oxidative dye material, which has the ability to undergo reaction more than once (under the conditions oxidants of the dyeing reaction). It is preferred that no more than 0.1% by weight, preferably no more than 0.08% by weight, more preferably, no more than 0.05% by weight and, especially, virtually none of any material that can react with its own molecules be included. . Preferably, the total of these materials is not greater than these values. Other coloring agents such as for example plant dyes have been included, but it is preferred that no non-oxidative dye be present and in fact it is preferred that no other coloring components are included other than the developer (i) as defined already the couplers (A) , (B) and (C). That is, in the dyeing composition of the hair, the dye components consist essentially of the developer (i) and of the couplers (A), (B) and / or (C). The trivial amounts of other coloring compounds P920 can of course be included as long as they do not significantly influence the final color. The compositions of the invention particularly provide good color absorption and fading resistance when used to color hair that has been abused by, for example, bleached, dyed or pre-dyed or, especially, permanent waving. An advantage of the composition of the invention is that the full range of colors can be obtained by using a very small number of compounds, in contrast to standard oxidation dyeing systems. Preferably only one or two, in particular, only one developer compound is used. It is particularly preferred that it be used in combination with no more than three, preferably only one or only two compounds of any of the types (A), (B) and (C). The inorganic peroxygen oxidizing agent is present in the composition in an amount of from about 0.0001 to about 0.05 moles per lOOg of composition. Amounts of approximately 0.05 moles per 100 grams of composition and lower, are sufficiently below so that the effects of mistreatment to the hair of the high levels of oxidizing agents are reduced P920 inorganic peroxygenates, such as hydrogen peroxide. Amounts of about 0.0001 mole per 100 grams of the composition and above are still sufficiently high to ensure that an oxidizing effect will be exerted on the coloring agents, so as to produce the desired colored molecules. Preferably, they are present in an amount of not more than about 0.04, more preferably, not more than about 0.03 moles per 100g of the composition. Amounts of about 0.03 moles per 100g of the composition can be particularly effective. Frequently, the amount of the inorganic peroxygen oxidizing agent is at least 0.0003 mole per lOOg of the composition, preferably at least 0.001 or 0.002 mole. Preferred compositions of the invention comprise an inorganic peroxygen oxidizing agent in an amount of from about 0.003 to about 1.5% by weight, more preferably, not more than about 1.2% by weight and most preferably, not more than about 1.0% by weight. weight. Preferred compositions often contain an inorganic peroxygen oxidizing agent in an amount of about 1% by weight. Preferably, the amount of the inorganic peroxygen oxidizing agent is at least P920 0.005% by weight, preferably, at least 0.01% by weight. Preferred oxidizing agents of all types are soluble in water. Water-soluble oxidizing agents, as defined herein, are those which have a solubility in the measure of about 10 g in 1,000 ml of deionized water at 25 ° C ("Chemistry", CE Mortimer, 5th Edition, page 277 ). Suitable inorganic oxidizing agents include hydrogen peroxide, sodium periodate, sodium perbromate and sodium peroxide, and inorganic perhydrated salt oxidizing compounds, such as the alkali metal salts of perborates, percarbonates, perfosphates, persilicates and persulfates. The inorganic perhydrated salts can be incorporated as monohydrates, tetrahydrates, etc. Mixtures of two or more of these inorganic peroxygen oxidizing agents can be used if desired. Alkali metal bromates and iodates are suitable, bromates are preferred. Hydrogen peroxide is very preferred for use in the invention. We have found that the invention has particular benefits, when the oxidizing agent is hydrogen peroxide, because it is a very effective oxidizing agent but, it can lead to greater problems of abuse than those that can lead others P920 oxidizing agents. Consequently, the ability to reduce their levels entails particular benefits. The total oxidizing agent of the composition preferably consists essentially only of the inorganic oxidizing agent. However, the total amount of oxidizing agent may include other oxidizing agents including preformed organic peroxyacid oxidizing agents and other organic peroxides, such as urea peroxide, melamine peroxide and mixtures of any of these. Suitable preformed organic peroxyacid oxidizing agents have the general formula R30C (O) OOH, wherein R30 is selected from saturated or unsaturated, substituted or unsubstituted, straight or branched chain alkyl, aryl or alkaryl groups of 1 to 14 atoms of carbon. A class of organic peroxyacid compounds, suitable for use in the invention, is that of the substituted amide compounds of the following general formulas XII and XIV: XI XII P920 wherein R30 is an aryl group or an unsaturated saturated alkyl or alkaryl group, having 1 to 14 carbon atoms, R32 is an aryl group or a saturated or unsaturated alkyl or alkaryl group, having 1 to 20 carbon atoms; to 14 carbon atoms and R31 is H or an aryl group or a saturated or unsaturated alkyl or alkaryl group, having 1 to 10 carbon atoms. Amido-substituted organic peroxy acid compounds of this type are described in EP-A-170, 386. Other suitable organic peroxyacid oxidizing agents include para-acetic, pernanoic, nonilamidoperoxycaproic (NAPCA), perbenzoic, m-clroperbenzoic, di-peroxy-isophthalic, mono-peroxy-phthalic, peroxylauric, peroxypropionic hexano-sulfonyl, N, N-phthaloylamino peroxycaproic, monopersuccinic, nonailoxybenzoic acid, dodecanedioyl-monoperoxybenzoic acid, nonyl amide of peroxyadipic acid, diacyl and tetracylperoxides, especially diperoxydecanedioic acid, diperoxytetradecanedioic acid and diperoxyhexadecanedioic acid and derivatives thereof. The mono- and dibeperacelic acid, mono- and diperbrasyl acid and N-phthaloylaminoperoxycaproic acid and derivatives thereof, are also suitable for use in the invention. The preferred peroxyacid materials are selected from peracetic and pernanoic acids and from P920 Mixtures thereof If non-inorganic oxidizing agents are included, these are preferably present in amounts of from about 0.0001 to 0.1 moles of preformed organic peroxyacids per 100g of the composition, preferably from about 0.001 to about 0.05. moles, more preferably, from about 0.003 to 0.04 moles, and especially from about 0.004 to 0.03 moles / 100 grams The preformed organic peroxyacid oxidizing agent, when present, is preferably present at a level of from about 0.01% to about 8% , more preferably from about 0.1% to about 6%, most preferably from about 0.2% to about 4%, and especially from about 0.3% to about 3% by weight of the hair coloring composition. both the inorganic oxidizing agent and the preformed organic peroxyacid oxidizing agent, the pro weight portion of the inorganic peroxygen oxidizing agent to the preformed organic peroxyacid is preferably in the range of from about 0.0125: 1 to about 500: 1, more preferably, from about 0.0125: 1 to about 50: 1.

P920 If additional organic peroxides are used, suitable amounts are from about 0.01% to about 3%, preferably from about 0.01% to about 2%, more preferably from about 0.1% to about 1.5% and most preferably, from about 0.2. % to about 1% by weight of the composition. The compositions of the invention can be formulated so that they have a high pH, ie, a pH above 6.1 or 6.5 and, in particular, pH above 7 or 8, especially a pH of about 9 at a pH of about 12. The compositions may contain ammonia (or other base) as a hair swelling agent, especially if they are formulated at high pH. If present, the ammonia (or other base) is included in the composition in amounts of, preferably, at least 0.01% by weight, more preferably, at least 0.05% by weight, in particular, from 0.1 to 3% by weight, based on the total composition applied to the hair, for example, 0.2 or 0.4 to or 2% by weight. These systems are particularly effective for hair coloring systems in which the objective is to dye gray hair. The low levels of the oxidizing agent mean that the colorful hair does not P920 mistreat but, the presence of ammonia promotes the swelling of gray hair, which is generally accepted to be more difficult to color than hair of another color, and, thus, promotes the diffusion of coloring materials and the agent oxidant inside the gray hair. These are also effective for imparting dark colors to light or lightly battered hair. This does not require discoloration (which is frequently done in known systems using high levels of oxidizing agent) but, it benefits from the swelling effect of ammonia on hair without mistreating, which is also accepted to be more difficult to color than battered hair . However, the composition of the invention is particularly suitable for the formulation of compositions having a low pH. Therefore, the composition preferably comprises developers (i), couplers (A), (B) and / or (C) and an oxidizing agent having a pH in the range of from about 1 to about 6. " These compositions preferably contain low levels of ammonia (eg, below 0.5 or 0.3% by weight) or other base and in particular form it is preferred that they are practically free of ammonia or other base.

P920 We have found that low pH compositions are much milder for hair and skin than standard high pH compositions. It reduces the irritation and staining of the skin along with the effects of odor and tear gas. Surprisingly, also provide the effective oxidation of coloring agents and hair coloring. Low pH hair coloring systems containing coloring agents by standard oxidation are described in our co-pending application number 9626713.3. In the low pH compositions of the invention, the pH is preferably from about 1.5 to about 5.8, more preferably from about 1.8 to about 5.5, most preferably from about 2 to about 5 and, in particular, from about 3.5 to about 4.5. It is also preferred that the pH of a composition containing only the developer (i) and couplers (A), (B) and / or (C) is in the range of from about 1 to about 6, preferably from about 1.5 to about 5.8, more preferably, from about 1.8 to about 5.5 and most preferably, from about 2 to about 5 and especially about 3.5 to P920 approximately 4.5. We find that at these low pHs, the developers and couplers of the invention have greater storage stability. The compositions may contain one or more optional regulatory agents. To control the pH of the final composition or any constituent part thereof, several different pH modifiers can be used. This pH adjustment can be carried out to obtain a low pH using acidulants well known in the field of the treatment of keratinous fibers and, in particular, of human hair, such as, for example, organic and inorganic acids, such as hydrochloric acid, tartaric acid, citric acid, succinic acid, phosphoric acid and carboxylic or sulphonic acids, such as ascorbic acid, acetic acid, lactic acid, sulfuric acid, formic acid, ammonium sulfate and sodium dihydrogen phosphate / phosphoric acid, disodium hydrogen phosphate / acid phosphoric, potassium chloride / hydrochloric acid, potassium dihydrogen phthalate / hydrochloric acid, sodium citrate / hydrochloric acid, potassium dihydrogen citrate / hydrochloric acid, potassium dihydrogen citrate / citric acid, sodium citrate / citric acid, sodium tartarate / tartaric acid, sodium lactate / lactic acid, acetate P920 sodium / acetic acid, disodium hydrogen phosphate / citric acid and sodium chloride / glycine / hydrochloric acid, succinic acid and mixtures thereof. Examples of alkaline buffering agents for high pH compositions are ammonium hydroxide, ethylamine, dipropylamine, triethylamine and alkanediamines, such as 1,3-diaminopropane, anhydrous alkali alkanolamines, such as mono- or di-ethanolamine, preferably those which are completely substituted. in the amine group, such as dimethylaminoethanol, polyalkylene polyamines, such as diethylenetriamine or a heterocyclic amine, such as morpholine, as well as the alkali metal hydroxides, such as sodium and potassium hydroxide, alkaline earth metal hydroxides, such as magnesium hydroxide and calcium, basic amino acids such as L-argenine, lysine, alanine, leucine, iso-leucine, oxysin and histidine and alkanolamines such as dimethylaminoethanol and aminoalkylpropanediol and mixtures thereof. Also suitable for use herein are compounds that form HC03 ~ by dissociation in water (hereinafter referred to as 'ion-forming compounds'). Examples of suitable ion-forming compounds are Na 2 CO 3, NaHCO 3, K 2 CO 3, (NH 4) 2 CO 3, NH 4 HCO 3, CaCO 3 and Ca (HC 3) and mixtures thereof.

P920 Preferred for use herein as regulating agents are organic and inorganic acids having a first pKa below pH 6 and their conjugate bases. As defined herein, the first pKa refers to the negative logarithm (base 10) of the equilibrium constant, K, where K is the acid dissociation constant. Organic and inorganic acids suitable for use herein are: aspartic, maleic, tartaric, glutamic, glycolic, acetic, succinic, salicylic, formic, benzoic, malic, lactic, malonic, oxalic, citric, phosphoric and mixtures thereof . Particularly preferred are acetic, succinic, salicylic and phosphoric acids and their mixtures. It is also preferred that a composition containing a level of oxidizing agent of from about 0.0001 to about 0.05 moles per 100 g of the composition without the developer and couplers, also have a pH in the range of from about 1 to about 6, preferably, from about 1.5 to about 5.8, more preferably, from about 1.8 to about 5.5, most preferably from about 2 to about 5, and especially from about 3.5 to about 4.5. There are several ways in which you can P920 the composition of the invention is supplied. This is usually supplied in the form of a game or kit to color the hair, which contains the components of the composition in two or more components packaged separately. The consumer mixes the components as instructed to form the composition, which is then applied to the hair. An advantage that we have found in the invention is that compositions containing low levels of the oxidizing agent, which are also at low pH, is that they can be delivered in the form of a single-phase product, ie, in a composition containing developers (i), couplers (A), (B) and / or (C) and the inorganic peroxygen oxidizing agent is stable to storage at low temperature. In this way, the composition of the invention can be supplied in the form of a single-phase reusable composition, "when this is a low pH composition of the invention." The coloring materials and the oxidizing agent practically do not undergo any reaction in the composition. , in particular, when it is kept at room temperature, however, when applied to the hair, the coloring components react.An additional advantage of the pH compositions P920 under the invention when supplied in the form of a kit or kit for coloring the hair containing the components of the composition in two or more components packed separately, is the stability of the components when they are mixed, if the composition It is a low pH composition. Low pH compositions when mixed have the advantage that they remain stable for longer periods compared to high pH compositions. Therefore, low pH compositions can be mixed and remain useful for, for example, up to half an hour or an hour. This gives the consumer additional time to apply the mixed composition, so that, for example, a first application can be made and subsequent "corrections" can also be made using the same package of material for coloring the hair. The developers, couplers, antioxidants and oxidants and any other materials that will be applied to the hair as components of the composition of the invention can be provided in any suitable physical form. A preferred physical form is liquid. The liquid can be of low viscosity, for example, it can be thinned with water or it can be of higher viscosity. The material can be suspended in a gel grid. The gel can be solid or low P920 viscosity. Hair coloring materials are often formulated so that when they are mixed to form the composition of the invention for application to the hair, they form a product with a creamy consistency, which is convenient for application to hair. The final composition that is applied to hair is often in the form of an emulsion. Each individual material can be supplied in a form such that the composition containing it has a pH above or below 7. For example, this can be a pH of 1 to 11. In order to help the solubility of various components , particularly of the developers and couplers, in a water-based vehicle, the vehicle can have a pH above 6.1 or 6.5 or 7, for example, a pH of 8 or 9 at a pH of 10 or 11. The pH , as supplied from 1 to 6, can help improve the stability of the components. The materials can be provided in such a way that the pH of the final composition, when mixed for application to the hair, has a pH below 7, even when one of the components used to form the composition has a pH above 7. Alcohols, such as ethanol, in amounts of from, for example, 5 to 10 or 25%, can be included to aid the solubility of the P920 developers and, particularly, the couplers in the water-based vehicle. The composition may also include an antioxidant, as described in our co-pending application number 9710754.4. Suitable antioxidants include sulfites such as sodium sulfite and chelating agents. Suitable amounts of antioxidant include from about 0.01 to 4% by weight, for example, from about 0.1 to 1.5% by weight. According to a second aspect of the invention, there is provided a kit or kit for coloring the hair, comprising: (i) an individually packaged coloring component, which "comprises: (i) one or more developers, as defined above, and (ii) one or more couplers selected from (A), (B) and (C), as defined above, and (2) an individually packaged oxidizing component, wherein the individually packaged oxidized component contains an inorganic peroxygen oxidizing agent. , at a molar level and the kit or kit is provided in such a way that when the coloring component and the oxidizing component are combined, the composition Combined P920 contains inorganic peroxygen oxidizing agent in an amount of from about 0.0001 mol to about 0.05 mol per 100 g of composition. In this aspect of the invention, it is important that the kit or kit is provided, so that the final composition produced has the level of the desired oxidizing agent. This can be done, for example, by supplying the kit or kit, so that the two individually packaged components only need to be mixed to provide the correct final level. Alternatively, the kit can be supplied with instructions for the consumer to mix the individually packaged coloring component and the individually packaged oxidizing component, in a proportion such that the desired final level of oxidizing agent is obtained. The same individually packaged dye component can be supplied in the form of separate components. For example, it may contain an individually packaged developer component, which contains one or more developer compounds (i) and an individually packaged coupling compound containing the coupling components (A), (B) and (C). Alternatively, the couplers can be supplied individually packed, so that the couplers (A) are supplied as the cyan component, the couplers (B) are supplied as P920 yellow component and couplers (C) are supplied as a magenta component, together with instructions for mixing by the consumer, to provide a variety of different colors. The components of the hair coloring kit of the second aspect of the invention may have any of the features described above for the composition of the invention In a third aspect of the invention, we provide a method for coloring the hair, comprising, providing (i) one or more developers, as defined above (ii) one or more couplers, selected from (A), (B) and (C) as defined above and (iii) an organic peroxygen oxidizing agent and apply (i), (ii), (iii) the hair to be dyed or colored, wherein the amount of the inorganic peroxygen oxidizing agent applied is from about 0. 0001 moles at approximately 0.05 moles per 100 g of the total composition applied. Preferably, the components are practically applied simultaneously. In particular, these are preferably mixed to form a single composition and P920 are then applied together to the hair. However, in the term "practically simultaneously" we also include the application to the hair of one or more components, followed by the subsequent application of the rest of the components in a period no longer than 5 minutes. The application of the components practically simultaneously, in particular the mixing and application is especially beneficial to the consumer, due to an increase in convenience or convenience, over the sequential application. The conditions of the reaction are those that are normally applied in a conventional manner for hair dyeing. The temperature is usually 10 to 45 ° C, often 20 to 35 ° C. The pH may be high (for example, a pH above 6.1 or 6.5, frequently, a pH above 8 or 9 or even above 10) but is often low (for example, a pH below 7 or 6). In the specification, when the leaving groups were analyzed, as well as the compounds which react only in one position or only with certain compounds, we refer to the reaction under the conditions to which the coloring compounds will be applied to the hair. In the method of the invention it is possible to use P920 any of the components having any of the above-discussed features of the composition of the invention. In a fourth aspect of the invention, we provide a hair coloring system, comprising: (i) one or more developers, as defined above (ii) one or more couplers selected from (a), (b) and (c) , as defined above and (iii) an inorganic peroxygen oxidizing agent in an amount of from about 0.0001 to about 0.05 moles per lOOg of the composition. which does not comprise other oxidative coloring agents or by oxidation and the system has the ability to provide a broad spectrum of color shades without using additional coloring agents. In the system of the fourth aspect of the invention, the amounts and types of developer and coupler are selected so that the particular color desired in any application is obtained. For any different color selection, the same set of developers and couplers is made to provide that color. Preferably, the system can provide at least one P920 light brown hue, at least a red hue and at least a dark brown hue. More preferably, it provides at least a blonde hue and at least a black hue. The system preferably comprises only one to four, preferably one to three or even only one or two compounds of each of the types (i), (A), (B) and (C). Thus, in this preferred embodiment of the system of the invention, a wide range of colors is obtained from only a few and, even, from as few components as four coloring components. The system may also comprise instructions for selecting the quantities and types of components (i), (ii) and (iii) to obtain a range of colors and degrees of permanence of the coloration. The system can be supplied to consumers, for example, to those who wish to color or paint their own hair or to the hairdressing rooms, together with instructions for selecting the particular quantities of each of the coloring components, in order to obtain different colors or degrees of permanence of the coloration. The system can also be used by the manufacturers of compositions to color the hair. The manufacturer provides the four different types of coloring component and selects the P920 quantities and types required of each individual color that is intended to be marketed. In the system of the invention, any of the materials that were discussed above can be used in the context of the composition of the invention. The invention also includes a further aspect in which a composition for hair coloring is provided, comprising: i) one or more developers, selected from the aromatic amino systems that have the ability to be oxidized and, after this, to undergo a single hydrophilic attack, and (ii) one or more couplers, selected from: (A) phenols and naphthols having an active leaving group in the para position, with respect to the hydroxyl group, (B) 1,3-diketones containing the group wherein Z is an active leaving group, and (C) compounds containing the group P920 wherein Z is an active leaving group and X is an active leaving group or a non-leaving substituent, so that in the presence of an oxidizing agent the developer or each developer reacts with the coupler or with each coupler, practically only in the position having the active leaving group Z and X, if X is an active leaving group, and (iii) inorganic peroxygen oxidizing agent wherein the composition has a pH of from 1 to 6. In this aspect of the invention, the composition may comprise conventional levels of the oxidizing agent as long as it has a pH below 6, which provides the above-described advantages of low pH. In this aspect of the invention, any of the features of the aspects of the invention discussed above may be used, when relevant. The kit, method and system of the aspects of the first to fourth invention, can also be applied at low pH but, with conventional levels of oxidizing agent, in accordance with this additional aspect of the invention.

P920 In the compositions, methods, uses and systems of the invention, any other conventional components of the hair coloring compositions may be applied to the hair, for example, as described in our co-pending application No. 9626713.3. Any of the compositions may contain various optional ingredients as follows.

Oxidative Dye Precursors Preferably, the only oxidatively tempting materials in the composition are the materials (i) and (ii) discussed above. However, the compositions may optionally contain minor amounts of other oxidative dye materials. These may include those described in our co-pending application PCT / US97 / 22719, filed on December 9, 1997. In general terms, the primary intermediate compounds of oxidative dye, include those monomeric materials which, in oxidation, form oligomers or polymers that have extended conjugated systems of electrons in their molecular structure. Due to the new electronic structure, the resulting oligomers and polymers show a shift in their electronic spectrum in the visible range and appear colorful. For example, intermediate compounds P920 primary oxidants that have the ability to form colorful polymers include materials such as aniline, which has a single functional group and which, in the oxidation, it forms a series of conjugated imines and quinoid dimers, trimers, etc., of a color that varies from green to black. Compounds such as p-phenylenediamine, which has two functional groups, are capable of oxidative polymerization to produce higher molecular weight colored materials, which have extended conjugated electronic systems. A representative list of primary intermediates and secondary couplers, suitable for use herein, is found in Sagarin, "Cosmetic Science and Technology," Interscience, Special Edition, Volume 2 pages 308-310.

Non-Oxidative Dyes - Other Dyes The hair coloring compositions used in the present invention may, in addition to the essential hair coloring agents by oxidation (i) and (ii) and optional oxidative dyes, additionally include dye materials Non-oxidative and other dye materials. Non-oxidative dyes as well as other optional dyes, suitable for use in compositions for coloring the hair and in the processes of P920 according to the present invention, include both semi-permanent and temporary dyes as well as other dyes. Non-oxidative dyes, as defined herein, include so-called "direct-acting dyes", metallic dyes, metal chelate dyes, fiber-reactive dyes and other synthetic and natural dyes. Various types of non-oxidative dyes are detailed in: "Chemical and Physical Behavior of Human Hair" 3rd Edition by Clarence Robbins (pages 250-259); "The Chemistry and Manufacture of Cosmetics". Volume IV. 2nd Edition, Maison G. De Navarre in chapter 45 by G.S. Kass (pages 841-920); "Cosmetics: Science and Technology", 2nd Edition, Volume II, Balsam Sagarin, Chapter 23 by F.E. Wall (pages 279-343); "The Science of Haír Care" edited by C. Zviak, Chapter 7 pages 235-261 and "Hair Care" J.C. Johnson, Noyes Data Corp., Park Ridge, U.S.A. (1973), (pages 3-91 and 113-139). Direct-acting dyes, which do not require an oxidative effect to develop the color, are also designated hair dyes and have long been known in the art. These usually apply to hair on. a base matrix that includes surfactant material. Direct-acting dyes include nitro dyes, such as the nitroaminobenzene or nitroaminophenol derivatives; Disperse dyes, such as P920 nitroarylamines, aminoanthraquinones or azo dyes; anthraquinone dyes, naphthoquinone dyes; basic dyes, such as C.I. 46005. Nitro dyes are added to the dyeing compositions to improve the color of the dye and to add an adequate aesthetic color to the dye mixture before application. Additional examples of direct-acting dyes include the Arianor basic chestnut dyes 17, C.I. (color index) - no. 12.251; basic red 76, C.I. 12.245; chestnut core 16, C.I. - 12,250; yellow basic 57, C.I. - 12,719 and basic blue 99, C.I. - 56,059 and additional direct-acting dyes, such as acid yellow 1, C.I. - 10,316 (yellow D &C No. 7); acid yellow 9, C.I. - 13,015; basic violet C.I. 45,170; Scattered yellow 3, C.I. - 11,855; yellow basic 57, C.I. - 12,719; Scattered yellow 1, C.I. - 10,345; violet basic 1, C.I. - 42,535, basic violet 3, C.I. 42,555; greenish blue, C.I. 42090 (Blue FD &C No. 1); yellowish red, C.I. -14700 (red FD &C No. 4); yellow, C.I. 19140 (yellow FD &C No. 5); yellowish orange, C.I. 15985 (yellow FD &C No. 6); bluish green, C.I. 42053 (green FD &C No. 3); yellowish red, C.I. 16035 (red FD &C No. 40); bluish green, C.I. 61570 (green D &C No. 3); orange, C.I. 45370 (orange D &C No. 5); red, C.I. 15850 (red D &C No. 6); Red P920 bluish, C.I. 15850 (red D &C No. 7); light bluish red, C.I. 45380 (red D &C No. 22); bluish red, C.I. 45410 (red D &C No. 28); bluish red, C.I. 73360 (red D &C no. ); reddish purple, C.I. 17200 (red D &C No. 33); dirty blue red, C.I. 15880 (red D &C No. 34); bright yellow red, C.I. 12085 (red D &C No. 36); bright orange, C.I. 15510 (orange D &C No. 4); greenish yellow, C.I. 47005 (yellow D &C No. 10); bluish green, C.I. 59040 (green D &C No. 8); violet blue, C.I. 60730 (Ext. Violet D &C No. 2); greenish yellow, C.I. 10316 (Ext yellow D &C No. 7). Fiber-reactive dyes include Procion (RTM), Drimarene (RTM), Cibacron (RTM), Levafix (RTM) and Remazol (RTM) dyes available from ICI, Sandoz, Ciba-Geigy, Bayer and Hoechst respectively. Natural dyes and plant dyes, as defined herein, include alkane (Lawsonia alba), chamomile (Matricaria chamomila or Anthemis nobilis), indigo, indigo and bark extract from Campeche and walnut. Temporary hair dyes or hair dyes are generally comprised of dye molecules that are too large to diffuse into the body of the hair and act on the outside of the hair. These usually apply P920 by a method of leaving it applied, in which the dye solution is allowed to dry on the surface of the hair. Since these dyes are normally less resistant to the effects of washing and cleaning the hair with active surface agents and wash the hair with relative ease. Temporary hair dye can be used in the compositions of the invention and preferred examples of temporary hair dyes are illustrated below.

Violet Red Yellow P920 Semi-permanent hair dyes are dyes that are generally smaller in size and have an effect on temporary hair rinses, but are generally larger than permanent (oxidative) dyes. Semi-permanent dyes usually act in a similar way to hair dyes. oxidative dyes, because it has the potential to diffuse into the hair body, however, semi-permanent dyes are generally smaller than the aforementioned conjugated oxidative dye molecules and, as such, are predisposed again to the gradual outward diffusion of the dye. The simple washing and cleansing action of the hair will promote this process and, in general, semi-permanent dyes are removed by washing the hair mainly after approximately 5 to 8 washes.In the compositions of the present invention may be included semi-permanent dye Semi-permanent dyes suitable for use in Compositions of the present invention are Blue 2 HC, Yellow 4 HC, Red 3 HC, Violet Dispersed 4, Black Dispersed 9, Blue 7 HC, Yellow 2 HC, Blue Dispersed 3, Violet Dispersed 1 and mixtures thereof. Examples of semi-permanent dyes are illustrated below: P920 blue Yellow Red Typical semi-permanent dye systems incorporate mixtures of both large and small color molecules. Since hair size is not uniform from root to tip, small molecules will diffuse both at the root and at the tip but will not be retained within the tip, while large molecules will generally only diffuse into the tip. the ends of the P920 hair. This combination of sizes of dye molecules is used to help provide consistent color results from the root to the tip of the hair, both during the initial dyeing process and during subsequent washings.

Catalyst The coloring compositions herein may optionally contain a catalyst for any organic peroxygen oxidizing agents and optional preformed peroxyacid oxidizing agents.

Thickeners The coloring compositions of the present invention may additionally include a thickener in from about 0.05% of about 20%, preferably from about 0.1% of about %, more preferably from about 0.5% to about 5% by weight. Thickening agents suitable for use in the compositions herein, are selected from oleic acid, cetyl alcohol, oleyl alcohol, sodium chloride, cetearyl alcohol, stearyl alcohol, synthetic thickeners, such as Carbopol, Aculin and Acrosil and mixtures thereof. Preferred thickeners for use herein are P920 Aculyn 22 (RTM,) steareth-20 methacrylate copolymer; Aculyn _ 44 (RTM) polyurethane resin and Acusol 830 (RTM), acrylate copolymers, available from Rohm and Haas, Philadelphia, PA, USA. Additional thickeners suitable for use herein include sodium alginate or gum arabic or cellulose derivatives, such as methylcellulose or the sodium salt of carboxymethylcellulose or acrylic polymers.

Diluent The water is the preferred diluent for the compositions in accordance with the present invention. However, the compositions according to the present invention may include one or more solvents as additional diluent materials. In general, suitable solvents for use in the coloring compositions of the present invention are selected to be water miscible and skin-friendly. Suitable solvents for use as additional diluents include C1-C20 monohydric or polyhydric alcohols and their ethers, glycerin, where monohydric and dihydric alcohols and their esters are preferred. In these compounds, alcohol residues containing from 2 to 10 carbon atoms are preferred. Thus, a preferred group includes ethanol, isopropanol, n-propanol, butanol, P920 propylene glycol, ethylene glycol monoethyl ether, 1,2-hexanediol, butoxy ethanol, benzyl alcohol and mixtures thereof. Water is the preferred primary diluent in the compositions according to the present invention. The principal diluent, as defined herein, refers to the level of the diluent present being greater than the total level of any other diluents. The diluent is present at a level, preferably from about 5% to about 99.98%, preferably from about 15% from about 99.5%, more preferably, from at least about 30% to about 99%, and especially from about 50% to about 98% by weight of the compositions herein.

Enzyme Another useful additional material in hair coloring compositions, according to the present invention, is one or more enzymes. Suitable enzyme materials include the lipases, cutinases, amylases, neutral and alkaline proteases, esterases, cellulases, pectinases, lactases and peroxidases available and conventionally incorporated in the detergent compositions. Suitable enzymes are discussed in the United States Patents P920 Nos. 3,519,570 and 3,533,139. Peroxidases are specific hemoproteins for peroxide, but they use a wide range of substances as donors. The catalase that composes the peroxide is included here, in view of the fact that it is generally of similar structure and properties and can effect certain oxidations by HO. The decomposition of H202 can be considered as the oxidation of one molecule by the other. It is widespread in aerobic cells and may have some more important function. Coenzyme peroxidases are not haemoproteins and one is at least one flavoprotein. Other flavoproteins such as xanthine oxidized, will also use H202 among other acceptors and the coenzyme peroxidases resemble these rather than the classical peroxidases in that they are not specific for H202. Suitable peroxidases for the compositions of the present invention include horseradish peroxidase, horseradish peroxidase, cow's milk peroxidase, rat liver peroxidase, linginase, and haloperoxidase such as chlorine and bromo-peroxidase. The enzymes are optionally incorporated at levels sufficient to provide up to about 50 mg by weight, more commonly, from about 0.01 mg to about 10 mg of active enzyme per gram of the hair treatment composition of the invention.

P920 Stated otherwise, the enzyme peroxidase can be incorporated into the compositions according to the invention, at a level of from about 0.0001% to about 5%, preferably from about 0.001% to about 1%, more preferably, of about 0.01% to about 1% active enzyme by weight of the composition. Commercially available protease enzymes include those sold under the trademarks Alcalase, Savinase, Primase, Durazym, and Esperase by Novo Industries A / S (Denmark), those sold under the Maxatase, Maxacal and Maxapem trademarks of Gist-Brocades, those sold by Genencor International, and those sold under the Opticlean and Optimase trademarks of Solvay Enzimes. The protease enzyme can be incorporated into the compositions according to the invention, at a level of from 0.0001% to 4% of the active enzyme by weight of the composition. Amylases include, for example, α-amylases obtained from a special strain of B. licheniformis, described in more detail in GB-1,269,839 (Novo). Preferred commercially available amylases include, for example, those sold under the trademark Rapidase from Gist-Brocades, and those sold under the trademark Termamyl and BAN from Novo Industries A / S. The enzyme P920 amylase can be incorporated into the composition according to the invention at a level of 0.0001% to 2% of the active enzyme by weight of the composition. The lipolytic enzyme may be present at active lipolytic enzyme levels of from 0.0001% to 2% by weight, preferably from 0.001% to 1% by weight, more preferably from 0.001% to 0.5% by weight of the compositions. The lipase can be of fungal or bacterial origin, when obtained, for example from a producing strain of Humicola sp., Thermomyces sp. or Pseudomonas sp. Including Pseudomonas pseudoalcaliqenes or Pseudomonas fluorescens. The lipase of chemically or genetically modified mutants of these strains are also useful herein. A preferred lipase is derived from Pseudomonas pseudoalkali, which is described in the European Patent issued, EP-B-0218272. Another preferred lipase herein is obtained by cloning the Humicola lanuqinosa gene and expressing the gene in Asper illus oryza, as host, as described in European Patent Application EP-A-0258 068, which is obtained in commercial form from Novo Industri A / S, Bagsvaerd, Denmark, under the trade name Lipolase. This lipase is also described in U.S. Patent No. 4,810,414, Huge-Jensen et al, issued March 7, 1989.

P920 Surfactants The compositions of the present invention may additionally contain a surfactant system. Suitable surfactants for inclusion in the compositions of the invention generally have a lipophilic chain length of from about 8 to about 22 carbon atoms and may be selected from anionic, cationic, nonionic, amphoteric, zwitterionic surfactants and mixtures thereof. (i) Anionic surfactants Suitable anionic surfactants for inclusion in the compositions of the invention include alkyl sulphates, ethoxylated alkyl sulphates, alkyl glyceryl ether sulfonates, methyl acyl taurates,. fatty acyl glycinates, N-acyl glutamates, acyl isethionates, alkyl sulfosuccinates, alkyl ethoxysulfosucinates, alpha-sulfonated fatty acids, their salts and / or esters, alkyl ethoxy carboxylates, alkyl phosphate esters, ethoxylated alkyl phosphate esters, alkyl sulfates , acyl sarcosinates, hydrotropes, such as alkyl xylene sulfonate and fatty acid / protein condensates and mixtures thereof. The chain lengths of the alkyl and / or P920 acyl of these surfactants are C-C12, preferably C.

-C and more preferably, C12-C14. (ii) Nonionic surfactants The compositions of the invention may also comprise water-soluble nonionic surfactants. Surfactants of this class include C12-C14 fatty acid mono- and diethanolamides, sucrose polyester surfactants and polyhydroxy fatty acid amide surfactants having the following general formula.

Preferred preferred N-alkyl, N-alkoxy or N-aryloxy polyhydroxy fatty acid amide surfactants, according to the above formula, are those in which R8 is C5C31 hydrocarbyl, preferably C6-C19 hydrocarbyl, which includes straight and branched chain alkyl and alkenyl or mixtures thereof and R9 is usually hydrogen, alkyl or C1-C8 hydroxyalkyl, preferably methyl or a group of formula -R1-0-R2 wherein R1 is C2-C8 hydrocarbyl, which includes straight chain, branched and cyclic chain (including aryl) and, preferably P920 is C2-C4 alkylene, R2 is straight-chain, branched-chain and cyclic C ^ Cj hydrocarbyl, including aryl and oxyhydrocarbyl, and preferably is C1-C4 alkyl, especially methyl or phenyl. Z2 is a polyhydroxyhydrocarbyl entity having a linear hydrocarbyl chain with at least 2 hydroxyls (in the case of glyceraldehyde) or at least 3 hydroxyls (in the case of other reducing sugars) directly connected to the chain or an alkoxylated derivative (preferably ethoxylated or propoxylated) of the same Z2 preferably will be derived from a reducing sugar in a reductive amination reaction and, more preferably, Z2 is a glycityl entity. Suitable reducing sugars include glucose, fructose, maltose, lactose, galactose, mannose, and xylose, as well as glyceraldehyde. As raw materials high dextrose corn syrup, high fructose corn syrup and high maltose corn syrup can be used, as well as the individual sugars listed above. These corn syrups can produce a mixture of sugar component for Z2. It should be understood that for no reason is it intended to exclude other suitable raw materials. Z2 will preferably be selected from the group consisting of -CH2- (CHOH) n-CH2OH, -CH (CH2OH) - (CHOH) n.?CH2H, CH2 (CHOH) 2 (CHOR ') CHOH) -CH2OH, wherein n is an integer from 1 to 5, inclusive and R' is H or a cyclic mono- or polysaccharide and P920 the alkoxylated derivatives thereof. As indicated, the most preferred are glycityls wherein n is 4, particularly -CH 2 - (CHOH) 4 -CH 2 OH. The most preferred polyhydroxy fatty acid amide has the formula R8 (CO) N (CH3) CH2 (CHOH) 4CH2OH wherein R8 is a C6-C19 straight-chain alkyl or alkenyl group. In the compounds of the above formula, R8-C0-N < it can be, for example, cocoamide, stearamide, oleamide, lauramide, myristamide, capricamide, palmiamide, ceboamide, etc. The oil-derived nonionic surfactants suitable for use herein include emollients derived from plants and animals, soluble in water, such as triglycerides with an inserted polyethylene glycol chain; mono- and diglycerides ethoxylates, polyethoxylated lanolins and ethoxylated butter derivatives. A preferred class of nonionic surfactants derived from oil for use herein has the following general formula: RCOCH, (OH) CH2 (OCH2CH2) nOH wherein n is from about 5 to about 200, preferably from about 20 to about 100, more preferably from about 30 to P920 about 85, and wherein R comprises an aliphatic radical having on average about 5 to 20 carbon atoms, preferably about 7 to 18 carbon atoms. Suitable oils and ethoxylated fats of this class include polyethylene glycol derivatives of glyceryl cocoate, glyceryl caproate, glyceryl caprylate, glyceryl ceboate, glyceryl palmate, glyceryl stearate, glyceryl laurate, oleate glyceryl, glyceryl ricinoleate and glyceryl grade esters derived from triglycerides, such as palm oil, almond oil and corn oil, preferably, glyceryl ceboate and glyceryl cocoate. Preferred for use herein are polyethylene glycol-based C9-C15 non-ionic polyethylene glycol fatty alcohol nonionic surfactants, which contain an average of from about 5 of about 50 ethyleneoxy entities per mole of surfactant. Polyethylene glycol-based C9-C15 polyethoxylated fatty alcohols suitable for use herein include Pareth-3 C.-C ^, Pareth-4 C9-C1: L, Pareth-5 C9-C1: L, Pareth-6 C9-Cl ? Pareth-7 0, -C ^, Pareth-8 C9-Cll t Pareth-3 C ^ -C ^, Pareth-4 C ^ -C ^, Pareth-5 Cu-C15, Pareth-6 C-C15, Pareth- 7 C ^ -C ^, Pareth-8 C ^ -C ^, Pareth-9 C13-C1S, P9 0 Pareth-10 Cu-C15, Pareth-11 C? N-C15, Pareth-12 Cu-C15, Pareth-13 CU-C1S and Pareth-14 Cu-C15. PEG 40 hydrogenated castor oil is obtained commercially under the trade name Cremophor (RTM) from BASF. Glyceryl cocoate PEG 7 and glyceryl laurate PEG 20 are commercially available from Henkel, under the trademarks Cetiol (RTM) HE and Lamacit (RTM) GML 20, respectively. Pareth-8 C9-C1JL / is available commercially from Shell Ltd under the trademark Dobanol (RTM) 91-8. Particularly preferred for use herein are the polyethylene glycol ethers of the ceteryl alcohol, such as Cetearet 25, which is available from BASF, under the trademark Cremaphor A25. Nonoxynol surfactants can also be used. Also suitable for use herein are the nonionic surfactants derived from the composite vegetable fats extracted from the fruit of the Shea tree (Butyrospermum Karkii Kotschy) and the derivatives thereof. Similarly, the ethoxylated mango, cocoa and butter derivatives of Illipe can be used in the compositions according to the invention. Although these are classified as non-ionic ethoxylated surfactants, it is understood that a certain proportion can remain as non-vegetable oil or grease.

P920 ethoxylated. Other suitable nonionic surfactants derived from oil include ethoxylated derivatives of almond oil, peanut oil, rice bran oil, wheat germ oil, linseed oil, jojoba oil, peach kernel oil, nuts, palm nuts, pistachio nuts, seeds sesame, rapeseed oil, juniper oil, corn oil, peach kernel oil, poppy seed oil, pine oil, castor oil, soybean oil, avocado oil, safflower oil, coconut oil, hazelnut oil, olive oil, grape seed oil and sunflower seed oil. (iii) Amphoteric surfactants Amphoteric surfactants suitable for use in the compositions of the invention include: (a) imidazolinium surfactants of formula (1) wherein R1 is C1-C22 alkyl or alkenyl, R2 is hydrogen or CH2Z, each Z is independently C02M or CH C02M, and M is H, P920 an alkali metal, an alkaline earth metal, ammonium or alkanolammonium; and / or ammonium derivatives of formula (2) RxCONH (CH2) wherein R1, R2 and Z are as defined above; (b) aminoalkanoates of formula (3) R1NH (CH2) nCO, M iminodialkanoates of formula (4) R-N [(CH,)? CO, M} 2 and iminopolyalkanoates of formula (5) R1 ~ [N (CH2) p] qN [CH2C02M] 2 CH2C02M wherein n, m, p, and q are numbers from 1 to 4, and R1 and M are independently selected from the groups specified above and (c) mixtures thereof. Suitable amphoteric surfactants of the type (a) are marketed under the Miranol and Empigen trademark and are understood to comprise a complex mixture of P920 species. In practice, there is likely to be a complex mix of cyclical and non-cyclical species and both definitions are provided here for reasons of totality. However, non-cyclic species are preferred for use herein. Examples of suitable amphoteric surfactants of type (a) include compounds of formula (1) and / or (2) wherein R 1 is C 8 H 17 (especially isocapyl), C 9 H 19 alkyl and C? RH23. "Compounds in which R1 is CH, Z is C02M and R2 is H, the compounds wherein R1 is C1: LH23, Z is C02M and R is CH2C02M, and the compounds in which R1 is C ^ H ^, Z is C02M and R2 is H. In the CTFA nomenclature, materials suitable for use in the present invention include cocoanfocarboxipropionate, cocoanfocarboxipropionic acid and, especially cocoanfoacetate and cocoamphodiacetate (referred to otherwise as cocoanfocarboxiglycinate).

Specific commercial products include those sold under the trademarks of Ampholak 7TX (carboxy methyl sodium polypropyl amine bait), Empigen CDL60 and CDR 60 (Albright &Wilson), Miranol H2M Conc.

Miranol C2M Conc. N.P., Miranol C2M Conc. O.P., Miranol C2M SF, Miranol CM Special (Rhóne-Poulenc); Alkateric 2CIB (Alkaril Chemicals); Amphoterge W-2 (Lonza, Inc.); Monateric CDX-38, Monateric CSH-32 (Mona Industries); P920 Re oteric AM-2C (Rewo Chemical Group); and Schercotic MS-2 (Scher Chemicals). Additional examples of amphoteric surfactants suitable for use in the present invention include Octoxynol-1 (RTM), polyoxethylene (1) octylphenyl ether; Nonoxynol-4 (RTM), polyoxyethylene (4) nonylphenyl ether and Nonoxynol-9, polyoxyethylene (9) nonylphenyl ether. It will be understood that various amphoteric surfactants of this type which are commercially available, are manufactured and sold in the form of electroneutral complexes with, for example, hydroxide counterions or with anionic sulfate or sulfonate surfactants, especially those of the C8 alcohol types. C18, sulfates, C8-C18 alcohol ethoxylates or C8-C18 acyl glyceride. Note also that the concentrations and proportions by weight of the amphoteric surfactants are based herein on the non-complexed forms of the surfactants, any counterions of the anionic surfactant will be considered as part of the total content of the anionic surfactant component. Examples of preferred amphoteric surfactants of type (b) include N-alkyl polytrimethylene polycarboxymethylamines, which are sold under the trademarks Ampholak X07 and Ampholak 7CX from Berol Nobel and also the salts, especially the triethanolammonium salts and the N-acid salts. -lauryl-beta-amino Propionic P920 and N-lauryl-imino-dipropionic acid. These materials are sold under the trademark Deriphat by Henkel and Mirataine by Rhdne-Poulenc. (iv) Zwitterionic surfactants The auxiliary water-soluble zwitterionic surfactants suitable for inclusion in the compositions of the present invention include alkyl betaines of the formula R5R6R7N + (CH2) CO, M and amido betaines of formula (6) below: wherein R5 is C1- or C2-alkyl or alkenyl, R6 and R7 are independently Cj-Cj alkyl, M is H, an alkali metal, an alkaline earth metal, ammonium or alkanolammonium, and n, m are each numbers from 1 to 4 Preferred betaines include cocoamidopropyl dimethylcarboxymethyl betaine, laurylamidopropyl dimethylcarboxymethyl betaine and Tego betaine (RTM). The water-soluble sultaine auxiliary surfactants suitable for inclusion in the compositions of the present invention include alkyl sultaines of the following formula (7): P920 RACON (CH2) Jí (CH2) nCH (OH) CH2S03 ~ M + R3 wherein R1 is C7 to C22 alkyl or alkenyl, R2 and R3 are independently Cl to C3 alkyl, M is H, alkali metal, alkaline earth metal, ammonium or alkanolammonium and m and n are numbers from 1 to 4. For use herein it is preferred to cocoamidopropylhydroxysultaine. The water-soluble amine oxide surfactant surfactants, suitable for use in the compositions of the present invention, include an alkyl amine oxide of RsR6R7NO and amido amine oxides of the following formula (8): wherein Rs is C1 to C22 alkyl or alkenyl, R6 and R7 are independently C1 to C3 alkyl, M is H, alkali metal, alkaline earth metal, ammonium or alkanolammonium and m and n are numbers from 1 to 4. Preferred amine oxides include cocoamidopropylamine oxide, lauryl dimethyl amine oxide and myristyl dimethyl amine oxide.

P920 Additional Optional Materials Various additional optional materials may be added to the colorant compositions described herein, each at a level of from about 0.001% to about 5%, preferably, from about 0.01% to about 3%, most preferably about 0.05% of about 2% by weight of the composition. These materials include proteins and polypeptides and derivatives thereof; soluble or solubilizable preservatives; natural preservatives, such as benzyl alcohol, potassium sorbate and bisabalol, benzoic acid, sodium benzoate and 2-phenoxyethanol; dye removers, such as oxalic acid, sulphated castor oil, salicylic acid and sodium thiosulfate; H202 stabilizers; humidifying agents, such as hyaluronic acid, chitin and sodium polyacrylates grafted with starch, such as Sanwet (RTM) IM-1000, IM-1500 and IM-2500 available from Celanese Superabsorbent Materials, Portsmit, VA, USA and described in the US. -A-4, 076, 663 as well as methyl cellulose, starch, higher fatty alcohols, paraffin oils, fatty acids and the like; solvents; antibacterial agents, such as Oxeco (phenoxy isopropanol); low temperature phase modifiers, such as ammonium ion sources (for example NH 4 Cl); agents for viscosity control, such as magnesium sulfate and other electrolyte; quaternary amine compounds, such as distearyl-, dilauryl-, hydrogenated dihydrate, dimethyl ammonium chloride, dicetyldiethyl ammonium-ethyl sulfate, di-dimethyl-ammonium-methyl sulfate, disodium dimethyl ammonium chloride, and dicoco-dimethyl ammonium chloride; hair conditioning agents, such as silicones, higher alcohols, cationic polymers and the like; enzyme stabilizers, such as water soluble sources of calcium or borate species; coloring agents; Ti02 and mica coated with Ti02; perfumes and perfume solubilizers; and zeolites such as Valfour BV400 and derivatives thereof and Ca2 + / Mg2 + sequestrants such as polycarboxylates, amino polycarboxylates, polyphosphonates, amino polyphosphonates etc. and water softening agents, such as sodium citrate. Other optional materials include anti-dandruff actives such as ZPT, and perfumes.

EXAMPLES The invention will now be illustrated by the following examples. In these examples, several standard tests are used as follows.

P920 I. Evaluation of the initial color and color change (measurement of? E) The equipment used to measure both the initial color and the color change of the substrates (hair / skin), dyed with the low pH coloring compositions of the present invention was a Hunter Colourquest spectrophotometer. The value used to express the degree of color change in any particular substrate is Delta E (? E). Delta E, as defined herein, is represented by the actual sum of the values L, a, and b, such that:? É = (? L2 +? A2 +? B2) 12 and L is a measure of clarity and darkness (intensity of color) where L = 100 is equivalent to white and L "= 0 is equivalent to black, In addition," a "is a measure of the red and green ratios (color tones), so the positive is equal to red and negative to green and "b" is a measure of the yellow and blue ratios (color tones), so that the positive is equal to yellow and the negative is equal to blue Measurements with the Hunter Colourquest can be performed on the Hunter Labscan Colorimeter, which is a full-spectrum spectrocolorimeter with a wavelength of 400-700 nanometers that records the color of hairpieces (test braids), in terms of the values "L", "a" and "b" the machine adjusts or calibrates in: mode - 0/45; port size - 1 inch; vision size - 1 inch; light - D65; field of view - 10 °; UV lamp / filter - The hair is "placed in a sample holder designed to keep the hair in a uniform orientation by measuring n. Equivalent colorimeters can be used but, it must be ensured that the hair does not move during the measurement. The hair should be extended to cover the 1-inch port during the color measurement. In the carrier of dots, dots are placed to guide the placement of the carrier in the port. The points are aligned with a mark on the port and the readings are taken in each zone. Eight measurements are taken per hairpiece, 4 on each side and three hairpieces are processed.

II. Standard Hair Hairpiece The compositions according to the present invention can be used to color hair of all colors types and conditions. For illustrative purposes, several hairpieces can be tried. Two hairpieces can be measured in terms of their approximate values L, a, b.

P920 L a b light brown (approx 60 approx 9 approx 32 undulated and permanent bleached) 40% dark brown 35-37 4.5-5.5 11.5-12.7 gray Yak hair (virgin or with permanent wavy and / or discolored) can also be used. This has values of: L = from approximately 82 to 83, a = from approximately -0.5 to 0.7, b = from approximately 11 to 12.

III. Method for coloring a hairpiece To color the hair, a hairpiece of 4 grams and approximately 8 inches long (or a 2-inch and 4-inch-long hair insert) was hung on top of a suitable container. The test dye product was then prepared (i.e., when applicable, the components in separate bottles were mixed) and about 2 grams of product per gram of hair were directly applied to the test hair plug. The dye is distributed by massage on the entire hairpiece for up to about 1 minute and then left on the hairpiece for up to about 30 minutes. Then it was rinsed with running water for about 1 or 2 minutes, P920 then the colored hairpiece was cleaned (in accordance with the IV shampoo protocol plus ~ forth) and dried. The drying can be carried out either naturally (ie without the aid of heat) or by using a dryer. The color development (initial color) of the colored, cleaned and dried test hair can then be evaluated using the Hunter Colourquest spectrophotometer. For the supply of a red hue (tone) to a light brown hair with wavy previous permanent and previously discolored (having values L, a, and b of approximately 60, 9 and 32) the preferred initial shade of painted hair will have a value of pitch (tangent angle of (b / a)), in the range of from about 25 to about 70, more preferably, from about 30 to about 65, most preferably, from about 35 to about 60 and where , the initial color intensity (L) is greater than about 10 and less than about 70, preferably, greater than about 15 and less than about 65, more preferably, greater than about 20 and less than about 60. To supply a brown or black hue (tone) to light brown hair with previous permanent waving and previous discoloration (having values L, a, b of P920 approximately 60, 9 and 32) the preferred initial shade of colored hair will have a tone value (tangent angle of (b / a)) less than about 25, preferably less than about 20 and the initial intensity of color (L) will be greater than about 1 and less than about 50, preferably, greater than about 5 and less than about 45. For the supply of a light chestnut shade (hue) to light brown hair with pervious wavy previous and previously discolored (having values L, a, b of about 60, 9 and 32) the preferred initial hue of the colored hair will have a pitch value (tangent angle of (b / a)) in the range of from about 70 to about 110 and where the Initial color intensity (L) will be greater than about 20 and less than about 95, preferably, greater than about 25 and less than about 90. A significant color change, as provided by the s coloring compositions in accordance with the present invention, preferably means a color change on hair with permanent and discolored waving, in terms of Delta E, which is preferably greater than about 5 or 8, preferably, greater than about 10, more preferably, greater than about 12, and with greater P920 preference, greater than about 15 and especially, greater than about 20.

IV Method of cleaning the hairpiece Hairpieces with colored hair undergo a repeated cleaning cycle, where the following process is repeated. A 4-inch, 8-inch test attachment (or a 2-gram, 4-inch test) of colored hair was attached to a suitable container and rinsed thoroughly for approximately 10 seconds using hot water (approximately 100 ° F). at a pressure of approximately 1.5 gallons / minute). Then, to the wet test hairpiece, using a syringe, the shampoo was applied directly (approximately 0.1 ml of nonconditioning shampoo per gram of hair). After foaming of the hair _ for about 30 seconds, the hair was rinsed under running water for about 30 seconds. The process of applying the shampoo and contacting the foam was then repeated with a final rinse of 60 seconds. The excess of water can be removed from the test piece (by squeezing) using the fingers. The test hair is then dried either naturally or using a dryer box preheated to approximately 140 ° F (during P920 approximately 30 minutes). The colored, clean and dry test hair lock can then be subjected to color evaluation (Delta E discoloration). During any individual test cycle, each different hair piece that will be evaluated must be tested in water at a temperature, pressure level and equivalent hardness level. The results of the Delta E fading or discoloration for light brown hair subject to pre-biased permanent curling (which has values L, a, b of approximately 60, 9 and 32) and which has been painted or colored with a red hue (with a tone value in the range of from about 25 to about 70) are preferably less than about 5.0, preferably, less than about 4.5, more preferably, less than about 4.0, and preferably in particular less than about 3.0 or 2.0 and, in where the change in hair color,% delta E, after up to 20 washes, is less than about 20%, and preferably less than about 15%, more preferably, less than about 10%. The results of the Delta E discoloration for light brown hair subjected to permanent wavy previous and predecolorado (that has values L, a, b of P920 approximately 60, 9 and 32) and that it has been painted or colored with a brown or black hue (with a tone value of less than about 25) are preferably less than about 2.3., preferably, less than about 2.0, more preferably, less than about 1.7 and, where, the change in hair color, the% delta E, after up to 20 washes, is less than about 5%, preferably less of about 4.5%, more preferably, less than about 4% and most preferably less than about 3.5%. The results of the Delta E discoloration for light brown hair subject to pre-biased permanent waving (which has values L, a, b of approximately 60, 9 and 32) and which has been painted or colored with a light brown shade (with a tone in the range of from 70 to about 110) are less preferably less than about 2.6, preferably less than about 2.3, and, where, the change in hair color,% delta E, after up to 20 washes, is less than about 15%, preferably less than about 12%, more preferably, less than about 10%, and most preferably less than about 8%. In the preferred embodiments of the present, the P920 hair color change stained over time (Delta E discoloration) is less than about 15%, preferably less than about 12%, more preferably less than about 10%, and most preferably less than about 8% V Permanent Waving Protocol The following method was used to permanently undulate hair which will normally be subjected to subsequent discoloration. On top of a suitable container, a hair piece of 4 grams and approximately 8 inches long was hung. The solution provided for the permanent wavy with the trade name "Zotos" was applied to the hair, to completely saturate it. The hairpieces became saturated again then. The hairpieces were then placed on a plastic tray for 20 minutes and then rinsed for 1 1/2 to 2 minutes with tap water at 37 ° C. The hairpieces were dried by squeezing and toweling. The hairpieces were then hung again on top of the container and the neutralizer "Zotos" available in commercial form was applied to saturate them, which were then placed in the plastic tray for 5 minutes and then rinsed for 1 1/2 to 2 minutes.

P920 tap water at 37 ° C. The hairpieces were shampooed twice and allowed to dry.

VI Discoloration protocol The permanent wavy hairpieces were dried for 20 minutes and hung over the edge of the container. A maximum of 9 or 10 hairpieces were treated at the same time. The commercially available decolorizing agent of Clairol, "Born Blonde (with chamomile)" was mixed in accordance with the instructions and 10 grams of the material were applied to each insert and they received a deep massage. Each hairpiece was wrapped or rolled in a non-tight form in an adherent film and left for 30 minutes. Subsequently, they were rinsed for 2 minutes with tap water at 37 ° C. Then, shampoo was applied once more.

EXAMPLE 1 In this example, a low pH and low oxidizing agent composition 1 of the invention is demonstrated. Additionally, the skin staining properties are compared with a high pH product obtainable commercially. In formulation 1 the following components were used as coloring components: P920 Component (i) CH3CH 2NHS02CH3 Component (ii) (C) pyrazolone Component (ii) (B) Benzoylacetanilide Component (ii) (A) a-naphthol P920 Formulation 1 of the invention has the following composition:% by weight Ceteareth 25 1.57 Cetyl alcohol 2.36 Stearyl alcohol 2.36 (i) 2.1 Pyrazolone (ii) (C) 0.22 a-naphthol (ii) (A) 0.012 or Benzoylacetanilide (ii -) (B) 0.61 Ethanol 7.7 Hydrogen peroxide 1.1 Sodium sulfite 0.4 EDTA 0.4 Water up to 100 The pH of formulation 1 is 3.8. This was compared with a high pH composition and with high content P920 of oxidizing agent, Recital "Santiago" obtainable commercially from L Oreal. Before dyeing, the L, a and b values of human skin that will be tested were measured. 0.2 g / cm3 was applied to the human skin and left for 30 minutes. The composition was then removed by rinsing and the L, a and b values were measured to calculate the initial Delta E, which represents the color difference between the skin before dyeing and the skin after dyeing. The results are given in Table 1 below. soi P920 From Table 1"it can be seen that the value of Delta E is significantly higher when using the commercially available formulation than when using the formulation 1 of the invention." The commercial formulation showed a considerable staining of the skin, while the formulation 1 of the invention showed essentially no visible staining even after applying it for 30 minutes.

Example 2 The following formulation was tested: Stearyl alcohol 2.7% Cetyl alcohol 2.7% Ceteareth-25 1.8% Ammonium hydroxide 0% N-ethyl (-N-methanesulfonamide ethyl 9) 2-methyl-p-phenylenediamine 3 %% Phenylmethylpyrazolinone 0.17% Acetoacetanilide 1.3% 1-Naphthol 0.004% Sodium sulphite 0.2% EDTA 0.2% Water up to 100% PH 4.5 The formulation was applied for 30 minutes to a light brown hairpiece with permanent wavy and P920 discolored. The results were as follows: L = 27.4, a = 14.7, b = 11.5,? E (absorption) 39.4 The color produced was dark reddish brown.

Example 3_ The following formulation was tested: Stearyl alcohol 1.62% Cetyl alcohol 1.62% Ceteareth-25 1.11% Ammonium hydroxide 1.8% 2,6-dichloro-p-aminophenyl-HCl 1.0% 3-methyl-pyrazolinone 0.8% N, N-Dimethyl acetoacetamide 2% n-Propyl gallate 0.8% Ascorbic acid 0.4% EDTA 0.2% Hydrogen peroxide 3% Citrus acid 0.24% Water up to 100% pH 5.2 This was applied to yak hair with permanent wavy and light brown hair with permanent wavy and discolored. The results were the following .

P920 Hairpiece L ab? E Yak (with wavy before 82.8 -0.6 11.7 permanent) dyed Yak (with wavy after 50.6 6.1 15.6 33. permanent) dyed (silver brown) Hairpiece L ab? E Light brown (with wavy before of 9.7 32.1 permanent and discolored) dyed or 00 Light brown (with wavy after 11.1 24.4 18 .1 permanent and discolored) dyed dark blond P920

Claims (6)

1. EIVINDICATIONS 1. A method for hair coloration comprising: (i) one or more developers selected from aminoaromatic systems capable of oxidizing and subsequently suffering a simple electrophilic attack, and (ii) one or more couplers selected from: (A) phenols and naphthols having an active leaving group in the para position relative to the hydroxyl group; (B) 1,3-diketones contained in the group where Z is an active leaving group and (C) compounds containing the group wherein Z is an active leaving group and X is an active leaving group or a non-leaving substituent, such that in the presence of an oxidizing agent each developer or developer reacts with each coupler or coupler
2. P920 - - _ essentially only in the positions that have the active leaving group Z and, if X is an active leaving group, then with X; and (iii) an inorganic peroxygen oxidizing agent in an amount of from about 0.0001 to about 0.05 moles per 100g of the composition. 2. A method for hair coloring according to claim 1, wherein one or more developers (i) are selected from N, N-disubstituted p-phenylene diamines. 3. A method for hair coloring according to claim 1, wherein one or more of the developers (i) are selected from the compounds of the formula and the compounds of the formula
3. P920 wherein Y is selected from -N02, -C02H, -C02R, -COR and OH and R13, R14, R15 and R16 are independently selected from H, methyl, ethyl, n-propyl, i-propyl, F, Cl, OH, -C02H, -C02R and -COR.
4. 4. A composition according to any of the preceding claims, wherein one or more couplers (A) are selected from the compounds having the formula wherein R1, R2, R3 and R4 are independently selected from OH, H, methyl, ethyl, n-propyl, i-propyl, t-butyl, C02H, and -COR. 5. A composition according to any of the preceding claims, wherein the coupler (B) is selected from the compounds of the formula wherein R5 is methyl, ethyl, n-propyl, i-propyl, t-butyl or phenyl and R6 is NR wherein the R groups are P920 independently methyl, ethyl, n-propyl, i-propyl, t-butyl or phenyl or R5 is C1-4 alkyl and R6 is C1-4 alkyl or Cw alkoxy. 6. A composition according to any of the preceding claims, wherein the coupler (C) is selected from the compounds having the formula wherein R7 and R8 are independently methyl, ethyl, n-propyl, i-propyl, t-butyl, unsubstituted phenyl or substituted phenyl. A composition according to any one of the preceding claims, which includes at least one coupler of type (B) and / or at least one coupler of type (O. 8. A composition according to any of the preceding claims, which includes at least one coupler of type (B) 9. A composition according to any of the preceding claims, including couplers of at least two of types (A), (B) and (C) 10. A composition according to any of the P920 preceding claims, which includes at least one coupler of each of the types (A), (B) and (C). A composition according to any of the preceding claims, which includes the developer (i) in an amount of from 0.01 to 7% by weight, to the coupler (A) in an amount of from 0.001 to 1% by weight, to the coupler ( B) in an amount from 0.005 to 4% by weight and / or to the coupler (C) in an amount of from 0.01 to 4% by weight. 12. A composition according to any of the preceding claims, comprising only one developer compound (i). 13. A composition according to any of the preceding claims, which includes no more than two couplers of each of types (A), (B) and (C). A composition according to any of the preceding claims, which contains not more than 0.1% by weight of oxidative coloring agents, which are not of types (A), (B) and (C). 15. A composition according to any of the preceding claims, which do not contain more than 0.1% by weight of oxidative coloring agents, which have the ability to react more than once to the hair coloring conditions. 16. A composition according to any of the P920 preceding claims, wherein X on the coupler (C) is a non-salient substituent. 17. A composition according to any of the preceding claims, having a pH of from about 1.5 to about 5.8. 18. A composition according to any of the preceding claims, which contain less than 0.3% by weight ammonia. 19. A composition according to any of claims 1 to 16, having a pH of at least 6.1, preferably of at least 6.
5. 5. 20. A composition according to any of claims 1 to 16, containing ammonia or ammonium hydroxide in an amount of at least 0.01% by weight. 21. A composition according to any of the preceding claims, wherein the oxidizing agent is hydrogen peroxide. 22. A composition according to any of the preceding claims, comprising not more than 0.1% by weight of any oxidative coloring agent that can react with itself under the conditions of hair coloring. 23. A composition according to any of the preceding claims, wherein the developer molecules (i) react practically only with the P920 coupler molecules (A), (B) and / or (C) and not with other developer molecules, under the conditions of hair coloring. 24. A kit for coloring the hair, comprising: (1) an individually packaged coloring component, comprising: (i) one or more developers, as defined in claim 1, and (ii) one or more couplers, as defined in claim 1, and (2) an individually packaged oxidizing component, wherein the individually packaged oxidizing component contains an inorganic peroxygen oxidizing agent at said molar level and the kit is provided in such a way that, when the coloring component and the Oxidant component are combined, the combined composition contains the inorganic peroxygen oxidizing agent in an amount of from about 0.0001 mole to about 0.05 mole per 100 g of the composition. 25. A method for coloring the hair, comprising providing: (i) one or more developers, as defined in claim 1, and P920 - _ _ _ (ii) one or more couplers, as defined in claim 1, and (iii) an inorganic peroxygen oxidizing agent and applying (i), (ii), (iii) to the hair to be colored or paint, wherein the amount of the inorganic peroxygen oxidizing agent applied is from about 0.0001 mole to about 0.05 mole per 100 g of the total composition applied. 26. A method according to claim 25, wherein the hair has been previously subjected to permanent waving ... 27. A system for coloring the hair, comprising: (i) one or more developers, as defined in FIG. claim 1, and (ii) one or more couplers, as defined in claim 1, and (iii) an inorganic peroxygen oxidizing agent in an amount of from about 0.0001 mole to about 0.05 mole per 100 g of the composition, which does not it comprises other oxidative coloring agents and the system has the ability to provide a broad spectrum of color shades without using additional coloring agents. P920 28. A method for hair coloring comprising: (i) one or more developers selected from aminoaromatic systems capable of oxidizing and subsequently undergoing a simple electrophilic attack, and (ii) one or more couplers selected from: (A) phenols and naphthols having an active leaving group in the para position relative to the hydroxyl group; (B) 1,3-diketones contained in the group where Z is an active leaving group and (C) compounds containing the group wherein Z is an active leaving group and X is an active leaving group or a non-leaving substituent, such that in the presence of an oxidizing agent each developer or developer reacts with each coupler or coupler essentially only in the positions they have at group P920 active projection Z and, if X is an active leaving group, then with X; and (iii) an inorganic peroxygen oxidizing agent wherein the composition has a pH no greater than
6. 6. 29. A kit for coloring the hair, comprising: (1) an individually packaged coloring component, comprising: (i) one or more developers, as defined in claim 28, and (ii) one or more couplers, as they were defined in claim 28, and (2) an individually packaged oxidizing component, wherein the kit is such that when the components (1) and (2) are mixed, the mixture has a pH no greater than 6. 30 A method for coloring the hair, comprising providing: (i) one or more developers, as defined in claim 28, and (ii) one or more couplers, as defined in claim 28, and P920 (iii) an inorganic peroxygen oxidizing agent and applying (i), (ii), (iii) to the hair to be colored, wherein the mixture applied to the hair has a pH no greater than 6. 31. A case, method or system according to any of claims 24 to 27, which additionally have any of the features set forth in claims 2 to 20. 32. A composition, kit or method, according to any of claims 28 to 30, which additionally have any of the features set forth in claims 2 to 18 and 21 to 23. 33. A composition, kit, method or system according to any of the preceding claims, wherein the developer (i) is selected from compounds containing a single primary amine group and react only in the primary amine group under the hair coloring conditions. P920