OXIDATIVE HAIR COLOR REMOVER IN TABLET OR GRANULE FORM.

Abstract

An oxidative composition is provided for the removal of natural and / or synthetic color from keratinous fibers. This composition may include a granule or tablet that, when added to a sufficient quantity of a peroxide developer solution, readily disperses. The composition may include a gas-generating agent to facilitate the decomposition and dispersion of the granule or tablet. The composition added to the developer can be stirred to form a homogeneous, cream-like mixture for application to the keratinous fibers.

Description

OXIDATIVE HAIR COLOR REMOVER IN TABLET OR GRANULE FORM FIELD OF TECHNOLOGY This description relates to components for formulating application mixtures for bleaching keratinous fibers or, more specifically, to oxidative components for mixing with developer solution to formulate these application mixtures for bleaching keratinous fibers. BACKGROUND The bleaching of human keratin fibers, particularly human hair, is carried out by the oxidative degradation of the melanin pigment in the hair. This is generally accomplished by applying a two-component mixture in which the first component is an alkaline mixture containing a persulfate, and the second component is an aqueous developer solution of hydrogen peroxide. The first component is an oxidative composition and typically includes one or more peroxygenated ingredients such as ammonium, sodium, or potassium persulfates, perborates, or percarbonates. At the time of use, the first component is combined with the second component, and the mixture is subsequently agitated, usually using an application tool such as a brush, to form a cream-like fluid or suspension suitable for application to the hair.This bleaching mixture is then allowed to remain on the hair for a specified processing time, which generally does not exceed 60 minutes. The hair is then rinsed with potable water and can be shampooed or subjected to further processing, such as coloring. The first component is typically supplied as a powder mixture. However, powder mixtures of oxidizers, alkalis, and other ingredients are respiratory irritants. When working with these powders, a portion of the particulate matter inevitably becomes airborne, creating a risk of inhalation of the irritating ingredients. MA / a / zuzz / ui ur uo - 2 These airborne particulates pose a potential hazard to individuals in the vicinity. Various compositions have attempted to address this problem by adding mineral oil or non-reactive oils, esters, or similar fluids that coat or agglomerate the particles, thereby limiting the generation of airborne particulates during normal handling. Patent application 9,248,080 B2 describes a process by which an oxidizing composition is formed into a granule or tablet through compression. These volatile dust removal processes are relatively effective in controlling airborne particulates. However, while compressing the oxidizing component can reduce airborne particulates, it also creates several unique problems related to the compressed forms. SUMMARY In one aspect, an oxidative composition for the removal of natural and / or synthetic color from keratinous fibers includes a granule or tablet that, when added in a sufficient quantity of a peroxide developer solution, is easily dispersed and, with stirring, forms a homogeneous, cream-like mixture for application to keratinous fibers. In various formulations, the granule or tablet includes a gas-generating agent to facilitate dissolution and / or dispersion when added to the peroxide developer solution. The composition may include the gas-generating agent in an amount between approximately 0.5% and approximately 80% by weight. In one formulation, the gas-generating agent comprises potassium peroxymonosulfate (KMP), anhydrous sodium perborate (ASP), or a combination thereof. For example, the gas-generating agent may include potassium peroxymonosulfate (KMP) in an amount between approximately 0.5% and approximately 80% by weight of the composition. In another formulation, the gas-generating agent comprises anhydrous sodium perborate (ASP) alone or in combination with potassium peroxymonosulfate (KMP) in an amount between approximately 0.5% and approximately 80% by weight of the composition. In any of the above or other forms, the composition may include at least one alkali persulfate selected from lithium persulfate, - 3 sodium persulfate, potassium persulfate, rubidium persulfate, cesium persulfate, ammonium persulfate, or combinations thereof. The alkali persulfate may be present in an amount between approximately 10% and approximately 80% by weight of the composition. In any of the above or other embodiments, the composition includes an alkali agent selected from one or more water-soluble silicates, carbonates, phosphates, and / or hydroxides of Group IA, Group HA, ammonium, aluminum, or zinc. The composition may include between approximately 5% and approximately 45% by weight of the alkali agent.In any of the above or other embodiments, the composition may include one or more tertiary modifiers selected from one or more hydrophilic thickeners, amphiphilic polymers, synthetic polymers, natural or synthetic gums or ionic or non-ionic derivatives thereof, starches, modified starches, dextrins, sugars, polyhydric alcohols, cellulose, cellulose derivatives, natural or synthetic waxes, or esters present in an amount between approximately 0.5% and approximately 25% by weight, individually or in combination. In any of the above or other embodiments, the composition includes a disintegrating agent selected from starches, starch glycolate, starch derivatives, alginic acids, alginic acid salts, cellulose, cellulose derivatives, mineral clays, hydrating clays, or combinations thereof present in an amount between approximately 0.5% and approximately 25% by weight.5% and approximately 20% by weight, individually or in combination. In any of the above or other forms, the composition includes one or more surfactants and / or metallic soaps in an amount between approximately 0.5% and approximately 10% by weight. One or more surfactants may be selected from one or more anionic surfactants, nonionic surfactants, amphoteric surfactants, or combinations thereof. One or more metallic soaps may be selected from one or more alkali metal soaps, including Group IA, Group IIA, aluminum, or zinc. In another aspect, an oxidative composition for mixing with a peroxide developing solution to formulate a bleaching mixture for the removal of natural and / or synthetic color from keratinous fibers includes a peroxygenated ingredient and a gas-generating agent, wherein the composition comprises a tablet or granule MA / a / ZUZZ / U 1 U l uo - 4 tablets. The composition may include the gas-generating agent in an amount between approximately 0.5% and approximately 80% by weight. In one example, the gas-generating agent is selected from potassium peroxymonosulfate (KMP), anhydrous sodium perborate (ASP), or a combination thereof and is present in an amount between approximately 0.5% and approximately 80% by weight of the composition. In one embodiment, one or more peroxygenated ingredients include at least one persulfate. In some embodiments, the persulfate comprises one or more alkali persulfates selected from lithium persulfate, sodium persulfate, potassium persulfate, rubidium persulfate, cesium persulfate, ammonium persulfate, or combinations thereof. The persulfate may be present in an amount between approximately 10% and approximately 80% by weight of the composition. In various embodiments, the composition may include an alkali agent selected from one or more water-soluble silicates, carbonates, phosphates, and / or hydroxides of Group IA, Group HA, ammonium, aluminum, or zinc, in an amount between approximately 5% and approximately 45% by weight of the composition. In any of the above or other embodiments, the composition includes one or more theological modifiers selected from one or more hydrophilic thickeners, amphiphilic polymers, synthetic polymers, natural or synthetic gums or ionic or non-ionic derivatives thereof, starches, modified starches, dextrins, sugars, polyhydric alcohols, cellulose, cellulose derivatives, natural or synthetic waxes, or esters present in an amount between approximately 0.5% and approximately 25% by weight, individually or in combination.In any of the above or other embodiments, the composition includes a disintegrating agent selected from starches, starch glycolate, starch derivatives, alginic acids, alginic acid salts, cellulose, cellulose derivatives, mineral clays, hydrating clays, or combinations thereof, present in an amount between approximately 0.5% and approximately 20% by weight, individually or in combination. In any of the above or other embodiments, the composition includes one or more surfactants and / or metallic soaps in an amount between approximately 0.5% and approximately 10%. MA / a / zuzz / ui ur uo - 5 by weight. One or more surfactants may be selected from one or more anionic surfactants, nonionic surfactants, amphoteric surfactants, or combinations thereof. One or more metallic soaps may be selected from one or more alkali metal soaps, including Group IA, Group IIA, aluminum, or zinc. In another additional aspect, a method for formulating a bleaching mixture for the removal of natural and / or synthetic color from keratinous fibers includes mixing any of the compositions described above with a peroxide developer solution to formulate a suspension, cream, or paste mixture. In another additional aspect, a method of preparing an oxidative composition for mixing with a peroxide developing solution to formulate a bleaching mixture for the removal of natural and / or synthetic color from keratinous fibers includes combining a first powder comprising at least one persulfate with a second powder comprising a gas-generating agent, and compressing the powders to form a tablet or granule. DESCRIPTION Two-component mixtures for bleaching keratinous fibers may include a first component comprising an alkaline powder mixture containing a persulfate, for example, one or more peroxygenated ingredients such as those from Group 1 (lithium persulfate, sodium persulfate, potassium persulfate, rubidium persulfate, and cesium persulfate) or ammonium persulfates, perborates, or percarbonates, and a second component comprising an aqueous developer solution. The developer solution will typically be a peroxide solution, such as hydrogen peroxide, but other developer solutions may be used. This first component may be referred to as a bleaching or oxidative composition, and the second component may be referred to as a developer solution or composition. As introduced above, the oxidative action of peroxygenated salts and peroxides is inefficient in acidic media.Therefore, an alkalizing agent must be added to make the medium basic. The alkalizing agent can be selected from water-soluble silicates, carbonates, phosphates, and / or hydroxides of groups IA, group IIA, ammonium, aluminum, or zinc. In addition to... MA / a / ZUZZ / UI U l UO - 6 provide an alkaline medium, the alkalizing agent also causes the hair cuticles to expand or open to facilitate the bleaching action. To reduce the risk of inhaling irritating oxidizer dust, the powder can be compressed into a tablet. However, while compressing the oxidizer powder into a tablet can reduce airborne particulate matter, it can also introduce several drawbacks unique to this compressed form. For example, the tablet's solubility in the developer is a primary concern and is generally more challenging compared to an equal weight of free or non-condensed powder. Among other things, this difficulty stems from a reduction in the surface area-to-weight ratio of the powder in its compressed form; therefore, the powder mass does not wet as quickly in the liquid developer and thus dissolves more slowly.Additionally, since the powder-to-liquid developer ratio is typically 1:1 to 1:3, there is very little excess liquid, and the compressed form absorbs or imbibes the liquid through capillary action before actual disintegration or dispersion. Binders added to the compressed form provide tensile strength to prevent crumbling and improve dimensional stability, but they often reduce susceptibility to wetting and increase disintegration time. Binders and / or disintegrants added to facilitate tablet or granule dispersion are not functional with respect to the bleaching process and therefore dilute or reduce bleaching efficiency on a weight-for-weight basis compared to the powder composition.Despite the aforementioned disadvantages, the oxidizer in tablet or granular form is advantageous in that it is virtually dust-free and eliminates the need to weigh or measure the powdered portion of the bleaching application mixture, since the weight of the individual tablets is predetermined and fixed. Additionally, the compressed product allows for easy and accurate inventory control at the point of use, for example, in a professional beauty salon. The user can easily determine how many applications remain in the product packaging simply by counting the number of tablets instead of roughly calculating the weight or volume of the bulk powder remaining in a container. The compositions and methods described herein can be used to overcome the aforementioned disadvantages. MA / a / zuzz / ui ur uo - 7 compressed oxidative compositions. This description outlines an oxidative composition and a process for preparing and using the composition with a developer solution to formulate an application mixture for removing natural and synthetic color from keratinous fibers, such as human hair. The oxidative composition may be compressed into a tablet or granule form, which may be collectively referred to herein as a tablet, and is formulated to crumble, disperse, and / or disintegrate rapidly when mixed with the developer composition. In several embodiments, a composition for bleaching keratinous fibers includes an oxidative composition comprising a compressed powder. In one example, the oxidative composition may comprise one or more peroxygenated ingredients and a gas-generating agent. In a further example, the oxidative composition comprises at least one persulfate and a gas-generating agent. The persulfate may include one or more alkaline persulfates. When combined with a suitable amount of aqueous peroxide developer solution, the gas-generating agent is configured to generate a gaseous decomposition product in the aqueous alkaline material. The gas-generating agent may be formulated to function as a superdisintegrant, thereby facilitating the rapid and generally complete crumbling, disintegration, and / or dispersion of the tablet upon addition of the developer solution. The gas-generating agent may include one or more chemicals, molecular compounds, and / or reagents that generate gas in an aqueous alkaline solution. In some embodiments, the gas-generating agent comprises from approximately 0.5% to approximately 80% by weight of the oxidizing composition. For example, the oxidizing composition may comprise from approximately 0.5% to approximately 5%, from approximately 5% to approximately 15%, from approximately 15% to approximately 25%, from approximately 25% to approximately 35%, from approximately 25% to approximately 55%, from approximately 35% to approximately 45%, from approximately 35% to approximately 65%, from approximately 45% to approximately 55%, from approximately 55% to approximately 65%, and from approximately 65% ​​to ML / a / ZUZZ / U 1 U l uo - 8 approximately 80%, such as more than approximately 15%, more than approximately 25%, more than approximately 30%, or more than approximately 40% of gas-generating agent by weight. In various embodiments, the gas-generating agent comprises one or more gas generators selected from potassium peroxymonosulfate (KMP), anhydrous sodium perborate (ASP), or a combination thereof, which may include derivatives. In various embodiments, the oxidizing composition comprises a combination of ASP and KMP. In one example, KMP is present in a greater amount by weight than ASP. For example, the oxidizing composition may include from approximately 10% to approximately 50% by weight of KMP and from approximately 3% to approximately 30% by weight of ASP, wherein KMP represents a greater percentage by weight of the oxidizing composition. In another example, ASP is present in a greater amount by weight than KMP.For example, the oxidative composition may include from approximately 10% to approximately 50% by weight of ASP and from approximately 3% to approximately 30% by weight of KMP, where ASP represents a larger percentage by weight of the oxidative composition. As introduced above, the oxidative composition may comprise one or more peroxygenated ingredients, such as one or more persulfates. In one exemplary embodiment, the oxidative composition includes one or more persulfates comprising one or more alkali persulfates selected from lithium persulfate, sodium persulfate, potassium persulfate, rubidium persulfate, cesium persulfate, ammonium persulfate, or combinations thereof. In some embodiments, the persulfate may be present in an amount from approximately 1% to approximately 85% by weight of the oxidative composition, more preferably from approximately 10% to approximately 80% by weight, either individually or in combination. The oxidizing composition may include an alkali agent. The exemplary alkali agent may include one or more water-soluble silicates, carbonates, phosphates, and / or hydroxides of group IA, group HA, ammonium, aluminum, or zinc. In various embodiments, the alkali agent may be present in an amount between 0% and approximately 60% by weight of the oxidizing composition, most preferably between MA / a / zuzz / ui ur uo - 9 approximately 5% and approximately 45% by weight, individually or in combination. In some embodiments, the oxidative composition may include one or more rheology modifiers. The rheology modifiers may be present in an amount between 0% and approximately 40% by weight of the oxidative composition, more preferably between approximately 0.5% and approximately 25% by weight, individually or in combination. In one example, the oxidative composition comprises one or more rheology modifiers selected from hydrophilic thickeners, amphiphilic polymers, synthetic polymers, natural or synthetic gums or ionic or non-ionic derivatives thereof, starches, modified starches or derivatives thereof, dextrins, sugars, polyhydric alcohols, cellulose, cellulose derivatives, natural or synthetic waxes, esters, or combinations thereof. The oxidative composition may include a disintegration assistant. In various embodiments, the disintegration assistant may be present in an amount between approximately 0% and approximately 40% by weight of the oxidative composition, more preferably between approximately 0.5% and approximately 20% by weight, individually or in combination. In one example, the oxidative composition includes a disintegration assistant selected from one or more of alginic acid, alginic acid salts, cellulose, cellulose derivatives, starches, starch glycolate, starch derivatives, modified starches, mineral clays, hydrating clays, or combinations thereof. The oxidative composition may comprise one or more surfactants and / or soaps. In one example, the oxidative composition includes one or more surfactants and / or soaps selected from anionic surfactants, nonionic surfactants, amphoteric surfactants, and metallic soaps, including those of Group IA, Group IIA, aluminum, or zinc. In various embodiments, the oxidative composition comprises from approximately 0% to approximately 20% by weight of surfactants and / or soaps, or more preferably from approximately 0.5% to approximately 10% by weight of surfactants and / or soaps, individually or in combination. The oxidative composition may also include other ingredients. MA / a / zuzz / UT ur uo - 10 For example, the oxidative composition may include various aesthetic additives such as fragrances and / or dyes. In one example, the oxidizing composition includes at least one gas-generating agent and at least one alkaline persulfate. The gas-generating agent may be present in an amount between approximately 0.5% and approximately 80% by weight of the oxidizing composition, or any other weight or weight range described herein, and the persulfate may be present in an amount between approximately 10% and approximately 80%. The gas-generating agent may be selected from KMP, ASP, or a combination thereof. The alkaline persulfate may be selected from Group 1 persulfates (lithium persulfate, sodium persulfate, potassium persulfate, rubidium persulfate, and cesium persulfate), ammonium persulfate, or combinations thereof. In a further example, the oxidizing composition includes an alkaline agent in an amount between approximately 5% and approximately 45% by weight, one or more rheology modifiers in an amount between approximately 0.5% to approximately 25% by weight, a disintegrating agent in an amount between approximately 0.5% and approximately 25% by weight, and / or one or more surfactants and / or soaps in an amount between approximately 0.5% and approximately 10% by weight. The alkaline agent may be selected from water-soluble silicates, carbonates, phosphates, and / or hydroxides of group IA, group IIA, ammonium, aluminum, or zinc. One or more rheology modifiers may be selected from hydrophilic thickeners, amphiphilic polymers, synthetic polymers, natural or synthetic gums or ionic or non-ionic derivatives thereof, starches, modified starches, dextrins, sugars, polyhydric alcohols, cellulose, cellulose derivatives, natural or synthetic waxes, esters, or combinations thereof.The disintegration assistant may be selected from one or more alginic acids, alginic acid salts, cellulose, cellulose derivatives, starches, starch glycolate, other starch derivatives, mineral clays, hydrating clays, or combinations thereof. One or more surfactants and / or soaps may be selected, including one or more anionic surfactants, nonionic surfactants, amphoteric surfactants, metallic soaps (including those of Group IA, Group IIA, aluminum, or zinc), or combinations thereof. - 11 Various exemplary oxidative compositions according to the present invention are also listed below in Table 1. The oxidative compositions described herein are not intended to be limited by the examples provided in Table 1. In some embodiments, the oxidative composition comprises one or more of the listed exemplary oxidative compositions, wherein the identified ingredients are present in an amount within + / - 10% of the listed composition. The listed oxidative compositions are dry to slightly moist powders with a characteristic light odor. The ingredients are bound together by combining to form a homogeneous powder mixture before compression.In some instances, it can be useful to grind or reduce the particle size of the powder mixture ingredients to increase the dissolution or decomposition of the powders when the tablet or granule composition comes into contact with the developer solution. Controlling the overall particle size of the powders can also increase dimensional strength and improve cosmetic appearance, such as the surface texture of the tablet or granule. In various embodiments, an advantageous particle size of less than approximately 1 mm (18 mesh) or, even more advantageously, less than approximately 800 µm (20 mesh) can be used. However, larger partial sizes may also be used. Table 1 examples (% by weight) 1 2 3 4 5 6 7 8 Potassium persulfate 30.0 30.0 29.0 29.0 30.0 30.0 35.0 35.0 Ammonium persulfate 20.0 20.0 20.0 20.0 16.5 16.5 8.0 8.0 Sodium silicate 20.0 20.0 20.0 20.0 Sodium metasilicate 14.0 14.0 15.0 15.0 5.0 5.0 Guar gum 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 Sodium lauryl sulfate 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 sodium Magnesium stearate 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 Primogel 5.0 5.0 2.5 2.5 3.5 3.5 Lactose 10.0 10.0 10.0 10.0 15.0 15.0 15.0 15.0 Mineral oil 2.5 2.5 Potassium peroxymonosulfate 20.2 10.0 10.0 5.0 15.0 7.5 5.0 2.5 Sodium perborate 10.0 5.0 7.5 2.5 Anhydrous 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 MA / a / ZUZZ / UI u / uo In several embodiments, a method for preparing the oxidative composition may include combining the gas-generating agent with any oxidative composition, including known oxidative compositions, or ingredients thereof, to mix with the developer solution to formulate a keratinous fiber bleaching composition. In one example, the method includes combining at least one peroxygenated ingredient, such as one or more persulfates, and the gas-generating agent in an amount described herein. In a further example, the method includes combining an alkaline agent, one or more rheology modifiers, a disintegrating agent, and / or one or more surfactants and / or soaps in an amount described herein. The method may also include compressing the resulting powder to form a tablet.The compression of the powder into a tablet or granulated form can be carried out by using commercially available tableting or granulating processes following procedures known to those experts in the field. One method of using the oxidative composition may involve adding the compressed powder or tablet to the developing solution. The developing solution may be alkaline but will typically be acidic, generally between pH 1.5 and pH 3.5, before the addition of the oxidative composition. When mixed with the oxidative composition, the combined mixture will typically be alkaline, generally between pH 9 and pH 12. However, the dissolution of the oxidative composition described herein is applicable to solutions - 13 acidic, neutral, or alkaline solutions, and thus the teachings herein may be applied equally to these solutions if used for color removal from keratinous fibers. When combined with an appropriate amount of developer solution, the oxidative composition, including the gas-generating agent, can be readily dispersed, decomposed, and / or disintegrated. The appropriate amount of developer solution may vary but will be a sufficient volume to facilitate the dissolution, disintegration, or crumbling of the tablet to form the desired volume of application mixture, which preferably has a cream-like consistency. In some embodiments, the oxidizing composition tablet is formulated to be mixed with the developer solution in a weight ratio of approximately 1:1 to approximately 1:4 tablet to solution.In some embodiments, the amount of added oxidative composition will be greater than that of the developer solution used. In a preferred embodiment, the oxidative composition tablet is formulated to be mixed with the developer solution in a 1:1 weight ratio. The tablet weight may vary due to design considerations such as the desired volume, consistency, texture, or other characteristics of the application mixture. For example, the tablet weight may vary from approximately 5 g to approximately 50 g, or more preferably from approximately 15 g to approximately 45 g for a typical single application. The method may further include stirring or mixing the combined mixture. Mixing may result in the formation of a cream, suspension, or paste-like bleach application mixture. In another example, the method includes applying the bleach application mixture to the keratinous fibers to remove natural or synthetic color.In one example, the oxidative composition and the developer solution can be mixed to form a homogeneous cream. In various embodiments, the oxidative composition may comprise a tableted alkaline oxidative composition, and the method includes adding the alkaline oxidative composition to a suitable amount of aqueous developer, for example, hydrogen peroxide solution, wherein the gas-generating agent generates gas in such a way as to rapidly and completely break down, disperse, and / or disintegrate the oxidative composition for easy mixing, forming a cream-like bleaching application mixture for application to keratinous fibers. - 14 This specification has been written with reference to various non-limiting and non-exhaustive modalities. However, it will be recognized by persons with regular expertise in the field that various substitutions, modifications, or combinations of any of the described modalities (or portions thereof) can be made within the scope of this specification. Thus, it is understood and contemplated that this specification supports additional modalities not expressly stated herein. These modalities can be obtained, for example, by combining, modifying, or rearranging any of the stages, components, elements, features, aspects, characteristics, limitations, and the like, described in the various non-limiting and non-exhaustive modalities described in this specification. Several elements described herein have been listed as alternatives or alternative combinations, for example, in a list of selectable active substances, ingredients, or compositions. It will be noted that the formulations may include one, more, or all of any of these elements. Thus, this description includes formulations of all of these elements individually and formulations that include these elements in any combination. The grammatical forms *uno*, *un*, *algunos*, and *el*, as used in this specification, are intended to include at least one or more, unless otherwise indicated. Thus, the articles are used in this specification to refer to one or more of the grammatical objects of the article. For example, *un component* means one or more components, and thus more than one component is contemplated and may be employed or used in an application of the described modalities. Furthermore, the use of a singular pronoun includes the plural forms, and the use of a plural pronoun includes the singular forms, unless the context of use indicates otherwise. Additionally, the grammatical conjunctions *y* and *yo* are used herein in accordance with accepted usage. For example, *xey* refers to *axy* and *y*.On the other hand, xoy refers to ax, yo both, xyy, while either xoy refers to exclusion. Any numerical interval mentioned herein includes all values ​​and intervals from a lower value to a higher value. For example, if a MA / a / zuzz / ui ur uo - The concentration range of 1% to 50% is established as follows: values ​​such as 2% to 40%, 10% to 30%, 1% to 3%, or 2%, 25% to 39%, and similar values ​​are expressly listed in this specification. These are only examples of what is specifically intended, and all possible combinations of numerical values ​​and intervals between and including the lowest and highest values ​​listed should be considered as expressly indicated in this application. Numbers modified by the term "approximately" are intended to include + / - 10% of the modified number. The present description may be formulated in other forms without departing from its spirit or essential attributes, and consequently, reference should be made to the following claims instead of the preceding specification to indicate the scope of the invention. Furthermore, the illustrations of arrangements described herein are intended to provide a general understanding of the various embodiments and are not intended to serve as a complete description. Many other arrangements will be evident to those skilled in the art upon review of the foregoing description. Other arrangements may be used and derived from it, and logical substitutions and changes may be made without departing from the scope of this description.

Claims

1. An oxidative composition for mixing with a peroxide developer solution to formulate a bleaching mixture for the removal of natural and / or synthetic color from keratinous fibers, characterized in that it comprises: an oxidizing agent comprising one or more persulfates; an alkaline agent; and a gas-generating agent comprising potassium peroxymonosulfate (KMP), anhydrous sodium perborate (ASP), or combinations thereof, wherein the composition is alkaline and has a tablet or granule form which, when mixed with a peroxide developer solution, decomposes to formulate a bleaching mixture suitable for the removal of natural and / or synthetic color from keratinous fibers.

2. The composition according to claim 1, characterized in that it comprises the gas generating agent in an amount between approximately 0.5% and approximately 80% by weight.

3. The composition according to claim 1, characterized in that the composition comprises between approximately 0.5% and approximately 80% by weight of potassium peroxymonosulfate (KMP).

4. The composition according to claim 1, characterized in that the composition comprises between approximately 0.5% and approximately 80% by weight of anhydrous sodium perborate (ASP).

5. The composition according to claim 1, characterized in that the persulfate comprises one or more alkali persulfates selected from lithium persulfate, sodium persulfate, potassium persulfate, rubidium persulfate, cesium persulfate, ammonium persulfate or combinations thereof.

6. The composition according to claim 5, characterized in that the composition comprises between approximately 10% and approximately 80% by weight of persulfate.

7. The composition according to claim 1, MA / a / ZUZZ / U 1 U l uo - 17 characterized in that the alkaline agent is selected from one or more water-soluble silicates, carbonates, phosphates and / or hydroxides of group IA, group IIA, ammonium, aluminum or zinc.

8. The composition according to claim 7, characterized in that it comprises between approximately 5% and approximately 45% by weight of alkaline agent.

9. The composition according to claim 1, characterized in that it further comprises one or more tertiary modifiers selected from one or more hydrophilic thickeners, amphiphilic polymers, synthetic polymers, natural or synthetic gums or ionic or non-ionic derivatives thereof, starches, modified starches, dextrins, sugars, polyhydric alcohols, cellulose, cellulose derivatives, natural or synthetic waxes, esters or combinations thereof in an amount between approximately 0.5% and approximately 25% by weight, individually or in combination.

10. The composition according to claim 1, characterized in that it further comprises a disintegration aid selected from starches, starch glycolate, starch derivatives, alginic acids, alginic acid salts, cellulose, cellulose derivatives, mineral clays, hydrating clays or combinations thereof in an amount ranging from approximately 0.5% to approximately 20% by weight, individually or in combination.

11. The composition according to claim 1, characterized in that it further comprises one or more surfactants and / or metallic soaps in an amount between approximately 0.5% and approximately 10% by weight, wherein one or more surfactants are selected from one or more anionic surfactants, non-ionic surfactants, amphoteric surfactants or combinations thereof, and wherein one or more metallic soaps are selected from one or more alkali metal soaps, including group IA, group IIA, aluminum or zinc.

12. The composition according to claim 1, characterized in that when approximately 15 g and approximately 45 g of the composition are mixed in a 1:1 weight ratio with a -18 peroxide developer solution having a pH between 1.5 and 3.5, the resulting bleaching mixture has a pH between 9 and 12.

13. A method for preparing an oxidative composition for mixing with a peroxide developing solution to formulate a bleaching mixture for the removal of natural and / or synthetic color from keratinous fibers, characterized in that it comprises: forming a tablet or granule from an alkaline powder mixture wherein the alkaline powder mixture comprises: an oxidizing agent comprising at least one persulfate; an alkali agent; and a gas-generating agent comprising potassium peroxymonosulfate (KMP), anhydrous sodium perborate (ASP), or combinations thereof; wherein, when mixed with a peroxide developing solution, the tablet or granule decomposes to formulate a bleaching mixture suitable for the removal of natural and / or synthetic color from keratinous fibers.

14. The method according to claim 13, characterized in that the gas-generating agent is present in an amount between approximately 0.5% and approximately 80% by weight of the tablet or granule.

15. The method according to claim 13, characterized in that potassium peroxymonosulfate (KMP) is present in an amount between approximately 0.5% and approximately 80% by weight of the tablet or granule.

16. The method according to claim 13, characterized in that anhydrous sodium perborate (ASP) is present in an amount between approximately 0.5% and approximately 80% by weight of the tablet or granule.

17. The method according to claim 13, characterized in that the persulfate comprises one or more alkali persulfates selected from lithium persulfate, sodium persulfate, potassium persulfate, rubidium persulfate, cesium persulfate, ammonium persulfate or combinations thereof, and wherein the persulfate is present in an amount between approximately 10% and approximately 80% by weight of the tablet or granule.

18. The method according to claim 17, characterized in that the alkaline agent powder is combined with the first and second powders, wherein the alkaline agent is selected from one or more of the water-soluble silicates, carbonates, phosphates and / or hydroxides of group IA, group IIA, ammonium, aluminum or zinc, and wherein the alkaline agent is present in an amount between approximately 5% and approximately 45% by weight of the tablet or granule.

19. The method according to claim 17, characterized in that the alkaline powder mixture further comprises at least one of: one or more tertiary modifiers selected from one or more hydrophilic thickeners, amphiphilic polymers, synthetic polymers, natural or synthetic gums or ionic or non-ionic derivatives thereof, starches, modified starches, dextrins, sugars, polyhydric alcohols, cellulose, cellulose derivatives, natural or synthetic waxes, esters or combinations thereof in an amount between approximately 0.5% and approximately 25% by weight, individually or in combination; a disintegrating agent selected from starches, starch glycolate, starch derivatives, alginic acids, alginic acid salts, cellulose, cellulose derivatives, mineral clays, hydrating clays or combinations thereof in an amount ranging from approximately 0.5%.5% to approximately 20% by weight, individually or in combination; or one or more surfactants and / or metallic soaps in an amount between approximately 0.5% and approximately 10% by weight, wherein one or more surfactants are selected from one or more anionic surfactants, non-ionic surfactants, amphoteric surfactants or combinations thereof, and wherein one or more metallic soaps are selected from one or more alkali metal soaps, including group IA, group IIA, aluminum or zinc.

20. The method according to claim 13, characterized in that, when approximately 15 g to approximately 45 g of the alkaline powder mixture formed in the tablet or granule is mixed in a 1:1 weight ratio with a peroxide developing solution having a pH between 1.5 and 3.5, the resulting bleaching mixture has a pH between 9 and 12.