EP3166577A1

EP3166577A1 - Improved decolorization of colored keratin fibres

Info

Publication number: EP3166577A1
Application number: EP15726179.3A
Authority: EP
Inventors: Jürgen SCHÖPGENS; Burkhard Müller; Udo Erkens
Original assignee: Henkel AG and Co KGaA
Current assignee: Henkel AG and Co KGaA
Priority date: 2014-07-09
Filing date: 2015-06-03
Publication date: 2017-05-17
Also published as: WO2016005114A1; DE102014213325A1; US20170112743A1

Abstract

Multi-component packaging unit (kit of parts) for reductive decolorization of colored fibers, which comprises separately formulated (I) a container (A) containing a cosmetic agent (a) and (II) a container (B) containing a cosmetic agent (b), wherein the agent (a) in container (A) contains (a1) one or more reducing agents from the group consisting of sodium dithionite, zinc dithionite, potassium dithionite, sodium sulfite, sodium hydrogen sulfite, potassium sulfite, potassium hydrogen sulfite, ammonium sulfite, sodium thiosulfate, potassium thiosulfate, ammonium thiosulfate, hydroxymethane sulfinic acid, aminomethane sulfinic acid, cysteine, thiolactic acid, sulfanyl acetic acid (thioglycolic acid) and/or ascorbic acid, (a2) one or more of fatty constituents from the group consisting of C₁₂-C₃₀-fatty alcohols, C₁₂-C₃₀-fatty acid triglycerides, C₁₂-C₃₀-fatty acid monoglycerides, C₁₂-C₃₀-fatty acid diglycerides, C₁₂-C₃₀-fatty acid esters, hydrocarbons and/or silicon oils, and has (a3) a water content of no more than 10.0 wt% relative to the total weight of the agent (a), and the agent (b) in container (B) has (b1) a water content of at least 30.0 wt% relative to the total weight of the agent (b). The invention further relates to a method for reductive decolorization of the colored keratin fibers using the multi-component packaging unit.

Description

"Improved discoloration of dyed keratin fibers"

The invention relates to multicomponent packaging units (kit-of-parts) for the reductive decolorization of colored keratinic fibers, which, packaged separately from one another, contain the containers (A) and (B). In this case, the container (A) contains a substantially anhydrous formulated cosmetic agent (a) containing at least one selected reducing agent and one or more fatty components. The container (B) contains a cosmetic agent (b), which is an aqueous formulation. Another object of the present invention is a process for the reductive discoloration of colored keratin fibers, in which the multi-component packaging unit described above is used.

Preparations for tinting and coloring hair are an important type of cosmetic. They may be used to slightly or more intensely nuance the natural hair color according to the desires of the respective person, to achieve a completely different hair color, or to mask unwanted color tones, such as gray tones. Usual hair dyes are, depending on the desired color or durability of the dyeing, formulated either on the basis of oxidation dyes or on the basis of substantive dyes. Often, combinations of oxidation dyes and direct dyes are used to achieve special nuances.

Colorants based on oxidation dyes result in brilliant and lasting color shades. However, they require the use of strong oxidizing agents, such as hydrogen peroxide solutions. Such colorants contain oxidation dye precursors, so-called developer components and coupler components. The developer components form the actual dyes under the influence of oxidizing agents or of atmospheric oxygen with one another or with coupling with one or more coupler components.

Colorants based on substantive dyes are frequently used for temporary dyeings. Direct-acting dyes are dye molecules that attach directly to the hair and do not require an oxidative process to form the color. Important representatives of this class of dyes are, for example, triphenylmethane dyes, azo dyes, anthraquinone dyes or nitrobenzene dyes, which may each carry cationic or anionic groups.

In all these dyeing processes, it may happen that the coloring is to be completely or partially reversed for various reasons. A partial removal of the color is useful, for example, if the dyeing result on the fibers turns out to be darker than desired. On the other hand, complete removal of the stain may in some cases be desired. For example, it is conceivable that the hair should be dyed or tinted for a specific occasion in a certain shade and after a few days the original color should be recovered.

Means and methods for color proof are already known from the literature. A well-known from the prior art method to make dyeings back, is the oxidative decolorization of the colored hair, for example using a conventional Blondiermittels. In this process, however, the fibers can be damaged by the use of strong oxidants. Furthermore, reductive processes for color printing have already been described. For example, European Patent Application EP 1 300 136 A2 discloses hair treatment processes in which the hair is dyed in a first step and decolorized reductively in a second step. Here, the reductive decolorization by application of a formulation containing a Dithionitsalz and a surfactant. In WO 2008/055756 A2, the reductive decolorization of keratin fibers is carried out by means of a mixture of a reducing agent and an absorbent.

When reductive decolorization is used in the middle, decolorization takes place by reduction of the dyes present on the keratin fibers or hairs. As a result of the reduction, the dyes are generally converted into their reduced leuco forms. In this process, the double bonds present in the dyes are reduced, the chromophoric system of the dyes is interrupted in this way and the dye is converted into a colorless form.

To reduce the colorants, it is generally necessary to use strong reducing agents which can react with oxidants, such as atmospheric oxygen, for example. In addition, in aqueous solution, the reducing agents are often not very stable and - depending on the pH of the solution - degraded more or less quickly. For example, the reductive decolorization agent known from the prior art is sensitive to atmospheric oxygen by means of sodium dithionite and slowly degrades in aqueous solution. By increasing the pH, these degradation reactions can be delayed. Adjusting to a slightly alkaline pH stabilizes aqueous dungite solutions so that the solution can be stored for several weeks to months with the exclusion of oxygen. However, if the reductive decolorizing agents are to be stored for a longer period of time or if high temperatures prevail under delivery conditions, the solution formulation, especially in aqueous solution, is not the method of choice. To circumvent this problem, the documents of the prior art often practice the use of the reducing agent itself as a solid, for example in powder form. However, this approach has several disadvantages.

The reducing agents must be dissolved in a cosmetic carrier before use. If they are incorporated into the cosmetic carrier in pure form, for example as a powder, dusts can occur which, if they are inhaled, can irritate the airways of the user. If the particle sizes of the powdery reducing agent chosen to be greater, there is the danger that the reducing agents do not dissolve sufficiently and thus lead to an uneven, unattractive decolorization result. In the case of incomplete solution, the reducing agent for the decolorization process is not available in its total amount, so that the decolorization result in this case may be weaker than planned.

If the solubility of the particulate compound reducing agent in the cosmetic carrier is poor, the user is further forced to mix the solid reducing agent and the cosmetic carrier for a very long time. This process is uncomfortable for the user, time-consuming and therefore highly undesirable.

The object of the present invention was therefore to provide a decolorizing agent for decolorization of dyed keratinic fibers, which discolored dyed keratin fibers as uniformly and effectively as possible. The decolorizing agent should be characterized by a high storage stability and even after long storage periods at high temperatures still have a high Entfärbekraft. The ready-to-use decolorizing agent should be easy to produce and convenient to apply for the user. In particular, dusts should not occur during use. In addition, the consistency of the decolorizing agent should be optimized so that it can be well applied on the user's head and distributed well, but not dripped down by the keratin fibers.

Surprisingly, it has now been found that the abovementioned problem can be solved outstandingly when the reductive decolorant is formulated as a multicomponent packaging unit (kit-of-parts), which comprises two containers (A) and (B), packaged separately (A) and (B) each contain the cosmetic agents (a) and (b). In this case, the agent (a) contains at least one reducing agent and one or more fatty components. The agent (a) is made up essentially free of water. The agent (b) is an aqueous cosmetic carrier. For the reductive decolorization of colored keratinic fibers, the user mixes the agents (a) and (b) shortly before use and thus produces the ready-to-use decolorizing agent.

A first subject of the present invention is a kit of parts for the reductive decolorization of colored keratinic fibers, which are packaged separately

(I) a container (A) containing a cosmetic agent (a) and

(II) a container (B) comprising a cosmetic agent (b),

in which

the agent (a) in container (A)

(a1) one or more reducing agents from the group consisting of sodium dithionite, zinc dithionite, potassium dithionite, sodium sulfite, sodium hydrogen sulfite, potassium sulfite, potassium hydrogen sulfite, ammonium sulfite, sodium thiosulfate, potassium thiosulfate, ammonium thiosulfate, hydroxymethanesulfinic acid, aminomethanesulfinic acid, cysteine, thiolactic acid, sulfanylacetic acid (thioglycolic acid) and / or ascorbic acid, (a2) one or more fat constituents from the group of C 12 -C 30 -fatty alcohols, C 12 -C 30 -fatty acid triglycerides, C 12 -C 30 fatty acid monoglycerides, C 12 -C 30 fatty acid diglycerides, C 12 -C 30 -fatty acid esters, hydrocarbons and / or containing silicone oils,

(a3) a water content of at most 10.0 wt .-% - based on the total weight of

By means of (a) - has,

- the agent (b) in container (B)

(b1) has a water content of at least 30.0 wt .-% - based on the total weight of the agent (b) - has.

The agents (a) and (b), which are contained in the containers (A) and (B) of the multi-component packaging unit according to the invention, are characterized by an extremely good storage stability even at high temperatures. Furthermore, in the course of the work leading to this invention, it has been found that the two agents (a) and (b) can be mixed very easily and quickly, and that a very uniform decolorization result can be achieved with the ready-to-use decolorant obtained after mixing , When mixing the agents (a) and (b) also occur no dusts. In addition, it has been found that the hair damage could be reduced by using the decolorizing agent of the invention (i.e., using the mixture of agents (a) and (b)).

Keratinic fibers, keratin-containing fibers or keratin fibers are understood to mean furs, wool, feathers and, in particular, human hair. Although the compositions according to the invention are primarily suitable for lightening and dyeing keratin fibers or human hair, in principle, there is nothing to prevent their use in other fields as well.

The term "colored keratinic fibers" is understood to mean keratin fibers which have been dyed with conventional cosmetic dyes known to the person skilled in the art. "Colored keratinic fibers" are, in particular, fibers which are compatible with the oxidative dyes known from the prior art and / or or dyed with substantive dyes. It is in this context explicitly on the known monographs, z. B. Kh. Schräder, bases and formulations of cosmetics, 2nd edition, Hüthig book publisher, Heidelberg, 1989, referenced that reflect the relevant knowledge of the expert. The agents (a) and (b) contain the ingredients essential to the invention in each case in a cosmetic carrier, which in the case of the agent (a) is substantially anhydrous and in the case of the agent (b) containing water.

The agent (a) is made up essentially anhydrous and may be present in solid form, as a powder or as a paste. Preference is given to the preparation of the agent (a) in the form of a paste. The agent (a) may further comprise a solvent-containing carrier. Furthermore, the content of the fat constituents from the group (a2) in the middle (a) can also be chosen so high that the fat constituents act as carriers of the agent (a) and consequently - in addition to the reducing agents (a1) - the main constituent of the agent (a ). The aqueous cosmetic agent (b) may be, for example, an agent with a suitable aqueous or aqueous-alcoholic carrier. For the purpose of reductive discoloration, such carriers may be, for example, creams, emulsions, gels or surfactant-containing foaming solutions such as, for example, shampoos, foam aerosols, foam formulations or other preparations which are suitable for use on the hair. The agents for reductive color removal of keratinic fibers are particularly preferably creams, emulsions or flowable gels. Most preferably, the agent (b) is formulated as an emulsion.

Agent (a) in container (A)

The multi-component packaging unit (kit-of-parts) according to the invention comprises a first separately prepared container (A) with a cosmetic agent (a). The agent (a) is characterized in that it contains as the first constituent (a1) essential to the invention at least one reducing agent from the group of sodium dithionite, zinc dithionite, potassium dithionite, sodium sulfite, sodium hydrogen sulfite, potassium sulfite, potassium hydrogen sulfite, ammonium sulfite,

Hydroxymethanesulfinic acid, aminomethanesulfinic acid, cysteine, thiolactic acid, sulfanylacetic acid (thioglycolic acid) and / or ascorbic acid.

As a second ingredient (a2) essential to the invention, the agent (a) contains one or more fatty constituents from the group of C 2 -C 30 fatty alcohols, C 12 -C 30 fatty acid triglycerides, C 12 -C 30 fatty acid monoglycerides, C 12 -C 30 fatty acid diglycerides, C 12 C3o fatty acid esters, hydrocarbons and / or silicone oils.

Furthermore, characteristic of the invention and essential for the agent (a) is that it is present in a substantially anhydrous form. The term "essentially anhydrous" is understood here to mean that the water content of the agent (a) is at most 10.0% by weight, but the water content of the agent (a) is preferably below 10.0% by weight and is preferably at most 8.0% by weight, more preferably at most 5.0% by weight, even more preferably at most 3.0% by weight and very particularly preferably at most 1.0% by weight Data in percent by weight based on the total weight of the agent (a).

As the first constituent (a1) essential to the invention, the agent (a) contains at least one reducing agent from the group of sodium dithionite, zinc dithionite, potassium dithionite, sodium sulfite, sodium hydrogen sulfite, potassium sulfite, potassium hydrogen sulfite, ammonium sulfite, sodium thiosulfate, potassium thiosulfate, ammonium thiosulfate, hydroxymethanesulfinic acid, aminomethanesulfinic acid, cysteine, thiolactic acid, sulfanylacetic acid (Thioglycolic acid) and / or ascorbic acid.

Sodium dithionite is an inorganic reducing agent with the empirical formula Na ₂ S ₂ 04 and the CAS no. 7775-14-6.

Zinc dithionite is an inorganic reducing agent with the empirical formula ZnS ₂ 0 ₄ and the CAS no. 7779-86-4.

Potassium dithionite is an inorganic reducing agent having the empirical formula K2S2O4 and the CAS no. 14293-73-3.

Sodium sulfite is an inorganic reducing agent with the empirical formula Na ₂ S0 ₃ and the CAS no. 7757-83-7.

Sodium hydrogen sulfite is an inorganic reducing agent with the molecular formula NaHSCb and the CAS no. 7631-90-5. Sodium hydrogen sulfite is preferably used in the form of an aqueous solution.

Potassium sulfite is an inorganic reducing agent having the empirical formula K ₂ S0 ₃ and the CAS no. 101 17-38-1.

Potassium hydrogen sulphite is an inorganic reducing agent with the empirical formula KHSO3 and the CAS no. 7773-03-7. Potassium hydrogen sulfite is preferably used in the form of an aqueous solution.

Ammonium sulfite is an inorganic reducing agent with the empirical formula (NH ₄ ) ₂ S0 ₃ and CAS no. 10196-04-0.

Sodium thiosulfate is an inorganic reducing agent with the empirical formula Na ₂ S ₂ O ₃ and the CAS no. 7772-98-7.

When potassium thiosulfate is an inorganic reducing agent with the empirical formula K ₂ S ₂ 0 ₃ and the CAS no. 10294-66-3.

Ammonium thiosulfate is an inorganic reducing agent having the empirical formula (NH ₄ ) ₂ S ₂ O ₃ and the CAS no. 7783-18-8.

Hydroxymethanesulfinic acid is an organic reducing agent of the formula HO-CH ₂ -S (O) OH and CAS no. 79-25-4. Alternatively, hydroxymethanesulfinic acid is also referred to as formaldehyde sulfoxylic acid. According to the invention, both the use of hydroxymethanesulfinic acid itself and the use of the physiologically tolerated salts of hydroxymethanesulfinic acid, for example the sodium salt and / or the zinc salt. The use of sodium formaldehyde sulfoxylate (sodium hydroxymethanesulfinate, the sodium salt of hydroxymethanesulfinic acid) and / or zinc formeladehydesulfoxylate (zinc hydroxymethanesulfinate, the zinc salt of hydroxymethanesulfinic acid) is therefore also according to the invention.

Aminomethanesulfinic acid is an organic reducing agent having the formula H ₂ N-CH ₂ -S (O) OH and the CAS no. 1 18201-33-5. According to the invention, both the use of aminomethanesulfinic acid itself and the use of the physiologically acceptable salts of aminomethanesulfinic acid, for example the sodium salt and / or the zinc salt. The use of sodium aminomethanesulfinate (the sodium salt of aminomethanesulfinic acid) and / or zinc aminomethanesulfinate (the zinc salt of aminomethanesulfinic acid) is therefore also according to the invention.

Under cysteine (2-amino-3-sulfanylpropionic acid) according to the invention D-cysteine, L-cysteine and / or a mixture of D- and L-cysteine understood.

Thiolactic acid (2-sulfanylpropionic acid) is understood as meaning D-thio-lactic acid, L-thio-lactic acid and / or a mixture of D- and L-thiolactic acid. According to the invention, both the use of Thiolactic acid itself as well as the use of thiolactic acid in the form of a physiologically acceptable salt thereof. A preferred salt of thiolactic acid is ammonium thiolactate. Ammonium thiolactate is the ammonium salt of thiolactic acid (ie, the ammonium salt of 2-sulfanylpropionic acid) (Formula XX). (Formula XX)

Included in the definition of ammonium thiolactate are both the ammonium salts of D-thiolactic acid and the ammonium salts of L-thiolactic acid and mixtures thereof.

Sulfanylacetic acid (thioglycolic acid, 2-mercaptoacetic acid) is an organic reducing agent of the formula HS-CH 2 -COOH, the compound has the CAS no. 68-1 1-1. Also in the case of thioglycolic acid, the use of thioglycolic acid itself is also the use of a physiologically acceptable salt of thioglycolic acid according to the invention. As physiologically acceptable salts of thiolgycolic acid, for example, sodium thioglycolate, potassium thioglycolate and / or ammonium thioglycolate can be used. Ammonium thioglylate is a preferred physiologically acceptable salt of thioglycolic acid.

Ammonium thioglycolate is the ammonium salt of thiglycolic acid (ie, the ammonium salt of sulfanylacetic acid) (Formula XXX). (Formula XXX)

According to the invention, ascorbic acid is in particular (R) -5 - [(S) -1,2-dihydroxyethyl] -3,4-dihydroxy-5 / - / - furan-2-one (other alternative names: vitamin C, L-ascorbic acid) with the CAS no. 50- 81-7 understood.

The reducing agents from the group of sodium dithionite, zinc dithionite, potassium dithionite, sodium sulfite, sodium hydrogen sulfite, potassium sulfite, potassium hydrogen sulfite, ammonium sulfite, sodium thiosulfate, potassium thiosulfate and / or ammonium thiosulfate have proved to be particularly suitable for the reductive decolorization of oxidatively dyed hair. For this reason, it is preferred if the agent (a) contains as reducing agent (a1) one or more reducing agents from this preferred group.

Preference is therefore given to a multi-component packaging unit (kit-of-parts) for the reductive decolorization of colored keratinic fibers, which is characterized in that

the agent (a) in container (A)

(a1) one or more reducing agents from the group sodium dithionite, zinc dithionite, potassium dithionite, sodium sulfite, sodium hydrogen sulfite, potassium sulfite, potassium hydrogen sulfite, ammonium sulfite, sodium thiosulfate, potassium thiosulfate and / or ammonium thiosulfate.

Furthermore, the reducing agent (s) from group (a1) are preferably selected Quantity ranges used. The essentially anhydrous compound (a) preferably contains the reducing agent (s) in a total amount of from 10.0 to 90.0% by weight, preferably from 12.0 to 80.0% by weight, more preferably from 14 , 0 to 70.0 wt .-% and particularly preferably from 16.0 to 60.0 wt .-%. These percentages by weight are based on the total weight of the agent (a).

Therefore, a multi-component packaging unit (kit-of-parts) for the reductive decolorization of colored keratinic fibers, which is characterized in that:

the agent (a) in container (A)

(a1) one or more reducing agents from the group of sodium dithionite, zinc dithionite, potassium dithionite, sodium sulfite, sodium hydrogen sulfite, potassium sulfite, potassium hydrogen sulfite, ammonium sulfite, sodium thiosulfate, potassium thiosulfate and / or ammonium thiosulfate in a total amount of from 10.0 to 90.0% by weight , preferably from 12.0 to 80.0 wt .-%, more preferably from 14.0 to 70.0 wt .-% and particularly preferably from 16.0 to 60.0 wt .-% - based on the total weight of By means of (a) - contains.

Also particularly preferred is a multi-component packaging unit (kit-of-parts) for the reductive decolorization of colored keratinic fibers, which is characterized in that

the agent (a) in container (A)

(a1) one or more reducing agents from the group consisting of sodium dithionite, zinc dithionite, potassium dithionite, sodium thiosulfate, potassium thiosulfate and / or ammonium thiosulfate in a total amount of from 10.0 to 90.0% by weight, preferably from 12.0 to 80.0 Wt .-%, more preferably from 14.0 to 70.0 wt .-% and particularly preferably from 16.0 to 60.0 wt .-% - based on the total weight of the agent (a) - contains.

Furthermore, it has been found to be particularly advantageous if the compositions according to the invention contain certain combinations of reducing agents from group (a), since with certain combinations a particularly strong decolorizing effect can be observed. Particularly advantageous in this context is the use of two different reducing agents from the group (a1), wherein the agent (a)

(a1 1) contains a first reducing agent selected from the group consisting of sodium dithionite, zinc dithionite,

Potassium dithionite, sodium thiosulfate, potassium thiosulfate and / or ammonium thiosulfate, and additionally

(a12) contains a second reducing agent selected from the group consisting of sodium sulfite,

Sodium hydrogen sulfite, potassium sulfite, potassium hydrogen sulfite and / or ammonium sulfite is selected.

In other words, in the context of this embodiment, a multi-component packaging unit for the reductive decolorization of colored keratinic fibers, in particular human hair, is particularly preferred

- the message (a) in container (A) (a1 1) contains a first reducing agent selected from the group consisting of sodium dithionite, zinc dithionite,

As a second ingredient (a2) essential to the invention, the agent (a) contains at least one or more fatty constituents from the group of C 12 -C 30 fatty alcohols, C 12 -C 30 fatty acid triglycerides, C 12 -C 30 fatty acid monoglycerides, C 12 -C 30 fatty acid diglycerides, Ci2-C3o fatty acid esters, hydrocarbons and / or silicone oils.

For the purposes of the invention, "fatty constituents" are organic compounds having a solubility in water at room temperature (22 ° C.) and atmospheric pressure (760 mmHg) of less than 1% by weight, preferably less than 0.1% by weight. , Understood.

The definition of fat ingredients explicitly includes only uncharged (i.e., nonionic) compounds. Fat ingredients have at least one saturated or unsaturated alkyl group having at least 12 carbon atoms. The molecular weight of the fat constituents is at most 5000 g / mol, preferably at most 2500 g / mol and more preferably at a maximum of 1000 g / mol. The fat components are neither polyoxyalkylated nor polyglycerylated compounds. In this context, polyalkoxylated compounds are those compounds in the preparation of which at least 2 alkylene oxide units have been reacted. Analogously, polyglycerated compounds are those compounds in the preparation of which at least two glycine units have been reacted.

Since, in the context of the present invention, only nonionic substances are explicitly considered to be fat constituents, charged compounds such as, for example, fatty acids and their salts do not fall under the group of fat constituents.

Preferred fat constituents are the constituents from the group of C 12 -C 30 -fatty alcohols, C 12 -C 30 fatty acid triglycerides, C 12 -C 30 fatty acid monoglycerides, C 12 -C 30 -fatty acid diglycerides, C 12 -C 30 -fatty acid esters and hydrocarbons.

The Ci2-C3o-fatty alcohols may be saturated, mono- or polyunsaturated, linear or branched fatty alcohols having 12 to 30 carbon atoms.

Examples of preferred linear saturated C 12 -C 30 -alcohols are dodecan-1-ol (dodecyl alcohol, lauryl alcohol), tetradecan-1-ol (tetradecyl alcohol, myristyl alcohol), hexadecan-1-ol (hexadecyl alcohol, cetyl alcohol, palmityl alcohol), octadecane 1-ol (octadecyl alcohol, stearyl alcohol), arachyl alcohol (eicosan-1-ol), heneicosyl alcohol (heneicosan-1-ol) and / or behenyl alcohol (docosan-1-ol).

Preferred linear unsaturated fatty alcohols are (9Z) octadec-9-en-1-ol (oleyl alcohol), (9E) octadec-9-en-1-ol (elaidyl alcohol), (9Z, 12Z) octadeca-9, 12-dien-1-ol (linoleyl alcohol), (9Z, 12Z, 15Z) -octadeca-9,12,15-trien-1-ol (linolenoyl alcohol), gadoleyl alcohol ((9Z) -eicos-9-en-1 - ol), arachidonic alcohol ((5Z, 8Z, 11Z, 14Z) -eicosa-5,8,1 1, 14-tetraen-1-ol), erucyl alcohol ((13Z) -dozos-13-en-1-ol ) and / or brassidyl alcohol ((13E) -docosen-1-ol).

The preferred representatives of branched fatty alcohols are 2-octyl-dodecanol, 2-hexyl-dodecanol and / or 2-butyl-dodecanol.

For the purposes of the present invention, a Ci2-C3o-fatty acid triglyceride is understood as meaning the triester of the trihydric alcohol glycerol with three equivalents of fatty acid. Both structurally identical and different fatty acids within a triglyceride molecule can be involved in the ester formation.

According to the invention, fatty acids are to be understood as meaning saturated or unsaturated, unbranched or branched, unsubstituted or substituted C 12 -C 30 -carboxylic acids. Unsaturated fatty acids may be monounsaturated or polyunsaturated. For an unsaturated fatty acid, its C-C double bond (s) may have the cis or trans configuration.

The fatty acid triglycerides are distinguished by a particular suitability in which at least one of the ester groups is formed starting from glycerol with a fatty acid which is selected from dodecanoic acid (lauric acid), tetradecanoic acid (myristic acid), hexadecanoic acid (palmitic acid), tetracosanoic acid (lignoceric acid), Octadecanoic acid (stearic acid), eicosanoic acid (arachic acid), docosanoic acid (behenic acid), petroselinic acid [(Z) -6-octadecenoic acid], palmitoleic acid [(9Z) -hexadec-9-enoic acid], oleic acid [(9Z) -octadec-9-enoic acid ], Elaidic acid [(9E) -octadec-9-enoic acid], erucic acid [(13Z) -docos-13-enoic acid], linoleic acid [(9Z, 12Z) -octadeca-9,12-dienoic acid, linolenic acid [(9Z, 12Z , 15Z) -Octadeca-9,12,15-trienoic acid, elaeostearic acid [(9Z, 11E, 13E) octadeca-9,1,1,3-trienoic acid], arachidonic acid [(5Z, 8Z, 11Z, 14Z ) - lcosa-5,8,1 1 1, 14-tetraenoic acid] and / or nervonic acid [(15Z) tetracos-15-enoic acid].

The fatty acid triglycerides may also be of natural origin. The fatty acid triglycerides or mixtures thereof which are present in soybean oil, peanut oil, olive oil, sunflower oil, macadamia nut oil, moringa oil, apricot kernel oil, marula oil and / or optionally hydrogenated castor oil are particularly suitable for use in composition (a).

A C 12 -C 30 -fatty acid monoglyceride is understood as meaning the monoester of the trivalent alcohol glycerol with one equivalent of fatty acid. In this case, either the middle hydroxyl group of the glycerol or the terminal hydroxyl group of the glycerol may be esterified with the fatty acid. It is characterized by the particular suitability of the Ci2-C3o-fatty acid monoglyceride in which a hydroxy group of glycerol is esterified with a fatty acid, wherein the fatty acids are selected from dodecanoic acid (lauric acid), tetradecanoic (myristic), hexadecanoic (palmitic), tetracosanic (lignoceric ), Octadecanoic acid (stearic acid), eicosanoic acid (arachidic acid), docosanoic acid (behenic acid), petroselinic acid [(Z) -6-octadecenoic acid], palmitoleic acid [(9Z) -hexadec-9-enoic acid], oleic acid [(9Z) -octadec-9 -enoic acid], elaidic acid [(9E) -octadec-9-enoic acid], erucic acid [(13Z) -docos-13-enoic acid], linoleic acid [(9Z, 12Z) -octadeca-9,12-dienoic acid, linolenic acid [(9Z , 12Z, 15Z) octadeca-9, 12, 15-trienoic acid, Elaeostearic acid [(9Z, 11E, 13E) octadeca-9,1,1,3-trienoic acid], arachidonic acid [(5Z, 8Z, 11Z, 14Z) -cosa-5,8,11,14-tetraenoic acid ] or nervonic acid [(15Z) tetracos-15-enoic acid].

A Ci2-C3o fatty acid diglyceride is understood as meaning the diester of the trivalent alcohol glycerol with two equivalents of fatty acid. Here, either the middle and one terminal hydroxy group of glycerol may be esterified with two equivalents of fatty acid, or both terminal hydroxy groups of glycerol are esterified with one fatty acid. The glycerol may be esterified with two structurally identical as well as with two different fatty acids.

The fatty acid diglycerides are characterized by particular suitability in which at least one of the ester groups is formed starting from glycerol with a fatty acid selected from dodecanoic acid (lauric acid), tetradecanoic acid (myristic acid), hexadecanoic acid (palmitic acid), tetracosanoic acid (lignoceric acid), octadecanoic acid (Stearic acid), eicosanoic acid (arachidic acid), docosanoic acid (behenic acid), petroselinic acid [(Z) -6-octadecenoic acid], palmitoleic acid [(9Z) -hexadec-9-enoic acid], oleic acid [(9Z) -octadec-9-enoic acid] , Elaidic acid [(9E) - octadec-9-enoic acid], erucic acid [(13Z) -docos-13-enoic acid], linoleic acid [(9Z, 12Z) -octadeca-9,12-dienoic acid, linolenic acid [(9Z, 12Z, 15Z) -Octadeca-9,12,15-trienoic acid, elaeostearic acid [(9Z, 11E, 13E) octadeca-9,1,1,3-trienoic acid], arachidonic acid [(5Z, 8Z, 11Z, 14Z) - lcosa-5,8,1 1 1, 14-tetraenoic acid] and / or nervonic acid [(15Z) tetracos-15-enoic acid].

For the purposes of the present invention, a C 12 -C 30 fatty acid ester is understood as meaning the monoester of a fatty acid and an aliphatic, monohydric alcohol, where the alcohol comprises up to 6 C atoms. Suitable alcohols include, for example, ethanol, n-propanol, isopropanol, 1-butanol, isobutanol, tert-butanol, n-pentanol, iso-pentanol or n-hexanol. Preferred alcohols are ethanol and isopropanol.

Preferred C 12 -C 30 -fatty acid esters are the esters which, on esterification of the alcohols ethanol and / or isopropanol with one of the fatty acids from the group dodecanoic acid (lauric acid), tetradecanoic acid (myristic acid), hexadecanoic acid (palmitic acid), tetracosanoic acid (lignoceric acid), octadecanoic acid (stearic acid ), Eicosanoic acid (arachidic acid), docosanoic acid (behenic acid), petroselinic acid [(Z) -6-octadecenoic acid], palmitoleic acid [(9Z) -hexadec-9-enoic acid], oleic acid [(9Z) -octadec-9-enoic acid], elaidic acid [(9E) -octadec-9-enoic acid], erucic acid [(13Z) -docos-13-enoic acid], linoleic acid [(9Z, 12Z) -octadeca-9,12-dienoic acid, linolenic acid [(9Z, 12Z, 15Z) Octadeca-9,12,15-trienoic acid, elaeostearinic acid [(9Z, 11E, 13E) -octadeca-9,1,1,3-trienoic acid], arachidonic acid [(5Z, 8Z, 1 1Z, 14Z) -l-cocoa- 5,8,11,14-tetraenoic acid] and / or nervonic acid [(15Z) -tetracos-15-enoic acid]. Among the fatty acid esters, isopropyl myristate is most preferred.

Hydrocarbons are exclusively from the atoms carbon and hydrogen compounds with 8 to 250 carbon atoms, preferably with 8 to 150 carbon atoms. Particularly preferred in this context are aliphatic hydrocarbons such as mineral oils, liquid paraffin oils (eg Paraffinium Liquidum or Paraffinum Perliquidum), isoparaffin oils, semi-solid paraffin oils, paraffin waxes, hard paraffin (Paraffinum Solidum), Vaseline and Polydecene. In this context, liquid paraffin oils (paraffin liquidum and paraffinium liquid liquid) have proved to be particularly suitable. The hydrocarbon is very particularly preferably Paraffinum Liquidum, also known as white oil. Paraffinum Liquidum is a mixture of purified, saturated, aliphatic hydrocarbons, consisting mostly of hydrocarbon chains with a C-chain distribution of 25 to 35 carbon atoms.

Also preferred is a multi-component packaging unit (kit-of-parts) for the reductive decolorization of colored keratinic fibers, which is characterized in that

the agent (a) in container (A)

(a2) one or more fat constituents from the group of C 12 -C 30 fatty alcohols, C 12 -C 30 fatty acid triglycerides, C 12 -C 30 fatty acid monoglycerides, C 12 -C 30 fatty acid diglycerides, C 12 -C 30 fatty acid esters and / or hydrocarbons , Also preferred is a multi-component packaging unit (kit-of-parts) for the reductive decolorization of colored keratinic fibers, which is characterized in that

the agent (a) in container (A)

(a2) one or more fat constituents from the group formed from dodecan-1-ol (dodecyl alcohol, lauryl alcohol), tetradecan-1-ol (tetradecyl alcohol, myristyl alcohol), hexadecan-1-ol (hexadecyl alcohol, cetyl alcohol, palmityl alcohol) , Octadecan-1-ol (octadecyl alcohol, stearyl alcohol), arachyl alcohol (eicosan-1-ol), heneicosyl alcohol (heneicosan-1-ol) and / or behenyl alcohol (docosan-1-ol), (9Z) octadec-9-ene 1-ol (oleyl alcohol), (9E) octadec-9-en-1-ol (elaidyl alcohol), (9Z, 12Z) octadeca-9,12-dien-1-ol (linoleyl alcohol), (9Z, 12Z , 15Z) octadeca-9,12,15-trien-1-ol (linolenoyl alcohol), gadoleyl alcohol ((9Z) -eicos-9-en-1-ol), arachidonic alcohol ((5Z, 8Z, 11Z, 14Z) -eicosa-5,8,11,14-tetraen-1-ol), erucyl alcohol ((13Z) -docos-13-en-1-ol) and / or brassidyl alcohol ((13E) -docosene-1 ol), 2-octyl-dodecanol, 2-hexyl-dodecanol and / or 2-butyl-dodecanol.

the agent (a) in container (A)

(a2) one or more fat constituents from the group fatty acid triglycerides, in which at least one of the ester groups is formed starting from glycerol with a fatty acid selected from dodecanoic acid (lauric acid), tetradecanoic acid (myristic acid), hexadecanoic acid (palmitic acid), tetracosanoic acid (lignoceric acid ), Octadecanoic acid (stearic acid), eicosanoic acid (arachic acid), docosanoic acid (behenic acid), petroselinic acid [(Z) -6-octadecenoic acid], palmitoleic acid [(9Z) -hexadec-9-enoic acid], oleic acid [(9Z) -octadec-9 -enoic acid], elaidic acid [(9E) -octadec-9-enoic acid], erucic acid [(13Z) -docos-13-enoic acid], linoleic acid [(9Z, 12Z) -octadeca-9,12-dienoic acid, linolenic acid [(9Z , 12Z, 15Z) -Octadeca-9,12,15-trienoic acid, elaeostearic acid [(9Z, 11E, 13E) - Octadeca-9,1 1, 3-trienoic acid], arachidonic acid [(5Z, 8Z, 1 1Z, 14Z) -cosa-5,8,1 1, 14-tetraenoic acid] and / or nervonic acid [(15Z) -tetracos-15 -enoic acid].

the agent (a) in container (A)

(a2) one or more fatty compounds from the group comprising hydrocarbons, which is formed from mineral oils, liquid paraffin oils, isoparaffin oils, semi-solid paraffin oils, paraffin waxes and / or paraffin wax (Paraffinum Solidum), Vaseline and Polydecenen. The total content of the fat constituents (a2) on average (a) has proven to be a key variable in reducing the formation of dust. A reduction in the formation of dust already occurs when using small amounts of fat constituents. However, in order to be able to ensure as complete a dedusting as possible, it has been found to be optimal to use the fat constituents (a2) in a total amount of at least 10% by weight. For this reason, it is particularly preferable that the agent (a) further advances the fatty components (a2) in a total amount of from 10.0 to 90.0% by weight, preferably from 20.0 to 86.0% by weight preferably from 25.0 to 84.0 wt .-% and particularly preferably from 30.0 to 80.0 wt .-% - based on the total weight of the agent (a) - contains. In addition, when the fat components (a2) in the indicated preferred and particularly preferred total amounts were used in the agent (a), the reducing agent could be effectively protected from the effects of atmospheric oxygen and the storage stability could thus be improved significantly.

Explicitly particularly preferred is therefore a multi-component packaging unit (kit-of-parts) for the reductive discoloration of colored keratinic fibers, which is characterized in that the agent (a) in container (A) or fat components from the group (a2 ) in a total amount of from 10.0 to 90.0% by weight, preferably from 20.0 to 86.0% by weight, more preferably from 25.0 to 84.0% by weight and most preferably from 30 , 0 to 80.0 wt .-% - based on the total weight of the agent (a) - contains.

To reduce the formation of dust and to inertize the reducing agent to atmospheric oxygen, the use of hydrocarbons has proven to be particularly effective. In particular, paraffin waxes and paraffin waxes have been found to be very compatible with the solid, inorganic reducing agents. For this reason, it is explicitly very particularly preferred, as reducing agent (a2) one or more hydrocarbons in a total amount of 15.0 to 90.0 wt .-%, preferably from 20.0 to 85.0 wt .-%, further preferably from 25.0 to 80.0 wt .-% and particularly preferably from 30.0 to 75.0 wt .-% - based on the total weight of the agent (a) - use.

Explicitly particularly preferred is therefore a multi-component packaging unit (kit-of-parts) for the reductive decolorization of colored keratinic fibers, which is characterized in that

the agent (a) in container (A) (a2) one or more hydrocarbons in a total amount of from 15.0 to 90.0% by weight, preferably from 20.0 to 85.0% by weight, more preferably from 25.0 to 80.0% by weight % and more preferably from 30.0 to 75.0 wt .-% - based on the total weight of the agent (a) - contains.

Another characteristic feature of the invention (a3) of the agent (a) is its

Water content of at most 10 wt .-% - based on the total weight of the agent (a).

On the average (a) additional ingredients or active ingredients can be used, which are certain

Percentages of water. In this context, it has turned out that one

Water content of up to 10 wt .-%, the storage stability of the agent (a) is not impaired to a greater extent.

However, in order to achieve optimum storage stability even at high temperatures, it has proven advantageous if the water content of the agent (a) is at a value of not more than 8.0% by weight, preferably not more than 5.0% by weight preferably of at most 3.0 wt .-% and particularly preferably of at most 1, 0 wt .-% - based on the total weight of the agent (a) -. Therefore, a multicomponent packaging unit (kit-of-parts) for the reductive decolorization of colored keratinic fibers, which is characterized in that:

the agent (a) in container (A)

(a3) a water content of at most 8.0% by weight, preferably of at most 5.0% by weight, more preferably of at most 3.0% by weight and particularly preferably of at most 1, 0% by weight based on the total weight of the agent (a) - has.

The agent (a) may additionally contain other ingredients or active ingredients. In particular, the use of nonionic surfactants (a4) in the middle (a) has proved to be particularly advantageous. It has been found that nonionic surfactants have a very good compatibility with both the reducing agents (a1) and in particular with the fat components (a2), so that the agent (a) can be produced well and reproducibly. By using one or more nonionic surfactants, optimal miscibility with the agent (b) could be achieved.

The nonionic surfactant (s) may be used, for example, in total amounts of from 0.1 to 15.0% by weight, preferably from 0.5 to 12.5% by weight, more preferably from 1.0 to 10.0% by weight. -% and particularly preferably from 1, 5 to 5.0 wt .-% - based on the total weight of the agent (a) - are used.

Therefore, a multi-component packaging unit (kit-of-parts) is also preferred for the reductive decolorization of colored keratinic fibers, which is characterized in that

- The agent (a) in container (A) in addition

(a4) one or more nonionic surfactants in a total amount of 0.1 to 15.0 wt .-%, preferably from 0.5 to 12.5 wt .-%, more preferably from 1, 0 to 10.0 wt. -% and particularly preferably from 1, 5 to 5.0 wt .-% - based on the total weight of the agent (a) - contains. Surfactants are understood as meaning amphiphilic (bifunctional) compounds having at least one hydrophobic radical and at least one hydrophilic moiety. In the case of the hydrophobic Part of the molecule is usually a hydrocarbon chain with 10 to 30 carbon atoms. In the case of nonionic surfactants, the hydrophilic moiety comprises an uncharged, highly polar moiety.

Nonionic surfactants contain as hydrophilic group e.g. a polyol group, a polyalkylene glycol ether group, or a combination of polyol and polyglycol ether groups. Such compounds are, for example

Addition products of 2 to 50 moles of ethylene oxide and / or 2 to 50 moles of propylene oxide onto linear and branched fatty alcohols having 12 to 30 carbon atoms, the fatty alcohol polyglycol ethers or the fatty alcohol polypropyleneglycol ethers or mixed fatty alcohol polyethers,

Addition products of 2 to 50 moles of ethylene oxide and / or 2 to 50 moles of propylene oxide to linear and branched fatty acids having 6 to 30 carbon atoms, the fatty acid polyglycol ethers or the fatty acid polyethers or mixed fatty acid polyethers,

Addition products of 2 to 50 moles of ethylene oxide and / or 2 to 50 moles of propylene oxide to linear and branched alkylphenols having 8 to 15 carbon atoms in the alkyl group, the Ikylphenolpolyglykolether or the Alkylpolypropylenglykolether, or mixed Alyklphenolpolyether,

with a methyl or C 2 -C 6 -alkyl radical end-capped addition products of 2 to 50 moles of ethylene oxide and / or 2 to 50 moles of propylene oxide to linear and branched fatty alcohols having 8 to 30 carbon atoms, to fatty acids having 8 to 30 carbon atoms and on alkylphenols having 8 to 15 carbon atoms in the alkyl group, such as those available under the trade names Dehydol ^® LS, LT Dehydol ^® types (Cognis),

Ci2-C3o fatty acid mono- and diesters of addition products of 2 to 30 moles of ethylene oxide with glycerol,

Addition products of 5 to 60 mol ethylene oxide onto castor oil and hydrogenated castor oil, polyol fatty acid esters, such as the commercially available product ^® Hydagen HSP (Cognis) or Sovermol ^® - types (Cognis),

polyalkoxylated triglycerides,

polyalkoxylated fatty acid alkyl esters of the formula (Tnio-1) R CO- (OCH ₂ CHR ² ) _w OR ³ (Tnio-1) in the R CO for a linear or branched, saturated and / or unsaturated acyl radical having 6 to 22 carbon atoms, R ² is hydrogen or methyl, R ^{3 is} linear or branched alkyl radicals having 1 to 4 carbon atoms and w is numbers from 2 to 20,

Amine oxides,

Hydroxymix ethers, as described for example in DE-OS 19738866, Sorbitan fatty acid esters and adducts of ethylene oxide with sorbitan fatty acid esters such as the polysorbates,

Sugar fatty acid esters and addition products of ethylene oxide with sugar fatty acid esters, addition products of ethylene oxide onto fatty acid alkanolamides and fatty amines,

Sugar surfactants of the alkyl and alkenyl oligoglycoside type, or

Sugar surfactants of the fatty acid N-alkylpolyhydroxyalkylamide type.

C 12 -C 30 -fatty alcohols, C 12 -C 30 fatty acid triglycerides, C 12 -C 30 fatty acid monoglycerides, C 12 -C 30 -fatty acid diglycerides and C 12 -C 30 -fatty acid esters have no strongly polar end group (which is also evident from the low HLB values of the compounds of this group) , For the purposes of this invention, they are considered to be fat constituents and therefore according to the definition of the present invention are not nonionic surfactants.

In addition, the agents (a) may additionally contain one or more nonionic polymers (a5).

The nonionic polymer (s) may be used, for example, in total amounts of from 0.1 to 15.0% by weight, preferably from 0.2 to 10.5% by weight, more preferably from 0.25 to 7.5% by weight. -% and particularly preferably from 0.3 to 5.0 wt .-% - based on the total weight of the agent (a) - are used.

Also preferred is therefore a multi-component packaging unit (kit-of-parts) for the reductive decolorization of colored keratinic fibers, which is characterized in that - the agent (a) in container (A) additionally

(a5) one or more nonionic polymers in a total amount of 0, 1 to 15.0 wt .-%, preferably from 0.2 to 10.5 wt .-%, more preferably from 0.25 to 7.5 wt. -% and particularly preferably from 0.3 to 5.0 wt .-% - based on the total weight of the agent (a) - contains. By polymers are meant macromolecules having a molecular weight of at least 1000 g / mol, preferably of at least 2500 g / mol, more preferably of at least 5000 g / mol, which consist of identical, repeating organic units. Polymers are made by polymerization of a monomer type or by polymerization of different structurally different monomer types. If the polymer is prepared by polymerization of a monomer type, one speaks of homo-polymers. If structurally different monomer types are used in the polymerization, the person skilled in the art will speak of copolymers.

The maximum molecular weight of the polymer depends on the degree of polymerization (number of polymerized monomers) and is determined by the polymerization method. For the purposes of the present invention, it is preferred if the maximum molecular weight of the zwitterionic polymer (d) is not more than 10 ⁷ g / mol, preferably not more than 10 ⁶ g / mol and particularly preferably not more than 10 ⁵ g / mol. Nonionic polymers are characterized by having no charges.

Examples of suitable nonionic polymers are vinylpyrrolidinone / vinyl acrylate copolymers, polyvinylpyrrolidinone, vinylpyrrolidinone / vinyl acetate copolymers, polyethylene glycols,

Ethylene / propylene / styrene copolymers and / or butylene / ethylene / styrene copolymers.

Means (b) in container (B)

The multicomponent packaging unit according to the invention comprises a second separately assembled container (B) which contains a means (b). This agent (b) is a cosmetic carrier formulation which has a water content of at least 30.0% by weight, based on the total weight of the agent (b).

In a preferred embodiment, the agent (b) is formulated such that its water content is at a value of at least 40.0% by weight, preferably at least 50.0% by weight, more preferably at least 55.0% by weight. % and most preferably of at least 60.0 wt .-% - based on the total weight of the agent (b) - is.

- the agent (b) in container (B)

(b1) a water content of at least 40.0% by weight, preferably of at least 50.0% by weight, more preferably of at least 55.0% by weight and very particularly preferably of at least 60.0% by weight - Based on the total weight of the agent (b) - has.

In order to optimize the decolorization effect, the ready-to-use decolorization medium - i. the mixture of agents (a) and (b) - preferably an acidic pH. Therefore, the agent (b) is preferably at an acidic pH of 1 to 6, preferably from 1, 3 to 4.5, more preferably from 1, 6 to 4.0 and particularly preferably from 2.0 to 3, 6, set. The pH values were measured with a N 61 glass electrode from Schott at a temperature of 22 ° C. To adjust the acidic pH, the agent (b) preferably additionally contains one or more organic and / or inorganic acids.

To adjust the pH, one or more acids from the group of citric acid, tartaric acid, malic acid, lactic acid, acetic acid, sulfuric acid, hydrochloric acid, phosphoric acid, methanesulfonic acid, benzoic acid, oxalic acid and / or 1-hydroxyethane-1, 1-diphosphonic acid have as proved suitable. Preferably, the acids are selected from the group of citric acid, tartaric acid, malic acid, lactic acid, methanesulfonic acid, oxalic acid, malonic acid, benzoic acid, hydrochloric acid, sulfuric acid, phosphoric acid and / or 1-hydroxyethane-1, 1-diphosphonic acid.

Also particularly preferred is therefore a multi-component packaging unit (kit-of-parts), which is characterized

- The agent (b) in container (B) in addition (b2) one or more acids from the group of citric acid, tartaric acid, malic acid, lactic acid, methanesulfonic acid, oxalic acid, malonic acid, benzoic acid, hydrochloric acid, sulfuric acid, phosphoric acid and / or 1-hydroxyethane-1, 1-diphosphonic acid.

Also particularly preferred is a multi-component packaging unit (kit-of-parts), which is characterized in that the agent (b) in container (B)

(b3) a pH of 1 to 6, preferably from 1, 3 to 4.5, more preferably from 1, 6 to 4.0 and particularly preferably from 2.0 to 3.6 (measured with a glass electrode of the type N 61 from Schott at a temperature of 22 ° C) has.

Although the pH of the agent (b) is preferably in the acidic range, the pH-adjusting agents may still contain small amounts of alkalizing agents. The alkalizing agents usable for this purpose in the present invention may be selected from the group consisting of ammonia, alkanolamines, basic amino acids, and inorganic alkalizing agents such as (earth) alkali metal hydroxides, (earth) alkali metal metasilicates, (earth) alkali metal phosphates, and (earth) Alkali metal hydrogen phosphates. Suitable inorganic alkalizing agents are sodium hydroxide, potassium hydroxide, sodium silicate and sodium metasilicate. Organic alkalizing agents which can be used according to the invention can be selected from monoethanolamine, 2-amino-2-methylpropanol and triethanolamine. The basic amino acids which can be used as the alkalizing agent according to the invention can be selected from the group formed from arginine, lysine, ornithine and histidine.

The agent (b) is provided as a liquid preparation to which further surfactants may be added. They are preferably selected from anionic, zwitterionic, amphoteric and nonionic surfactants.

As anionic surfactants, the agent (b) may contain, for example, fatty acids, alkyl sulfates, alkyl ether sulfates and ether carboxylic acids having 10 to 20 carbon atoms in the alkyl group and up to 16 glycol ether groups in the molecule.

The agent (b) may also contain one or more zwitterionic surfactants such as betaines, N-alkyl-N, N-dimethylammonium glycinates, N-acyl-aminopropyl-N, N-dimethylammonium glycinates, and 2-alkyl-3-carboxymethyl-3 -hydroxyethyl-imidazolines.

Agents (b) suitable according to the invention are further characterized in that the agent (b) additionally contains at least one amphoteric surfactant. Preferred amphoteric surfactants are N-alkylglycines, N-alkylpropionic acids, N-alkylaminobutyric acids, N-alkyliminodipropionic acids, N-hydroxyethyl-N-alkylamidopropylglycines, N-alkyltaurines, N-alkylsarcosines, 2-alkylaminopropionic acids and alkylaminoacetic acids. Particularly preferred amphoteric surfactants are N-cocoalkylaminopropionate, cocoacylaminoethylaminopropionate and C 12 -C 18 -acylsarcosine.

It has proved to be particularly advantageous if the agent (b) additionally contains nonionic surfactants (b4). Preferred nonionic surfactants are

alkyl polyglycosides

- Alkylene oxide addition products of fatty alcohols and fatty acids, each having 10 to 60 mol Ethylene oxide per mole of fatty alcohol or fatty acid and

- Fatty acid triglycerides ethoxylated with 10 to 60 ethylene oxide units.

Also particularly preferred is therefore a multi-component packaging unit (kit-of-parts), which is characterized in that the agent (b) in container (B) in addition

(b4) one or more nonionic surfactants from the group

the C12-C30 fatty alcohols ethoxylated with 10 to 60 ethylene oxide units and / or

- The fatty acid triglycerides ethoxylated with 10 to 60 ethylene oxide units contains. The nonionic, zwitterionic, amphoteric and / or anionic surfactants can be used in amounts of from 0.1 to 25.0% by weight, preferably from 0.3 to 15.0% by weight and very particularly preferably from 0.5 to 5.0% by weight .% - Based on the total weight of the agent (b) - be used.

Discoloration of dyed keratin fibers

The multicomponent packaging unit according to the invention is a system comprising the agents (a) and (b), which is used for decolorizing previously dyed keratinic fibers, in particular human hair. The dyed keratin fibers are usually fibers previously dyed with conventional oxidation dyes and / or substantive dyes known to those skilled in the art.

The decolorizing agents are suitable for the removal of dyeings produced with oxidation dyes based on developer and coupler components on the keratin fibers. If the following compounds were used as developers, the dyeings produced therewith can be removed well, effectively and with almost no subsequent darkening by using the decolorizer: p-phenylenediamine, p-toluenediaminethene, N-bis- (.beta.-hydroxyethyl) -p-phenylenediamine , 4-N, N-bis (β-hydroxyethyl) amino-2-methylaniline, 2- (β-hydroxyethyl) -p-phenylenediamine, 2- (α, β-dihydroxyethyl) -p-phenylenediamine, 2-hydroxymethyl -p-phenylenediamine, bis (2-hydroxy-5-aminophenyl) -methane, p-aminophenol, 4-amino-3-methylphenol, 2,4,5,6-tetraaminopyrimidine, 4-hydroxy-2,5,6 triaminopyrimidine, 2-hydroxy-4,5,6-triaminopyrimidine and / or 4,5-diamino-1- (β-hydroxyethyl) -pyrazole.

If the following compounds were used as couplers, the dyeings produced therewith can also be removed with a very good decolorization result: m-phenylenediamine derivatives, naphthols, resorcinol and resorcinol derivatives, pyrazolones and m-aminophenol derivatives used. Suitable coupler substances are in particular 1-naphthol, 1, 5, 2,7- and 1, 7-dihydroxynaphthalene, 5-amino-2-methylphenol, m-aminophenol, resorcinol, resorcinol monomethyl ether, m-phenylenediamine, 1-phenyl 3-methyl-pyrazolone-5, 2,4-dichloro-3-aminophenol, 1, 3-bis (2 ', 4'-diaminophenoxy) -propane, 2-chloro-resorcinol, 4-chloro-resorcinol , 2-chloro-6-methyl-3-aminophenol, 2-amino-3-hydroxypyridine, 2-methylresorcinol, 5-methylresorcinol and 2-methyl-4-chloro-5-aminophenol.

1-naphthol, 1, 5-dihydroxynaphthalene, 2,7-dihydroxynaphthalene, 1, 7-dihydroxynaphthalene, 3-aminophenol, 5-amino-2-methylphenol, 2-amino-3-hydroxypyridine, resorcinol, 4-chlororesorcinol, 2- Chloro-6-methyl-3-aminophenol, 2-methylresorcinol, 5-methylresorcinol, 2,5-dimethylresorcinol and 2,6-dihydroxy-3,4-dimethylpyridine. The substrate to be decolorized may also have been dyed with substantive dyes. Suitable direct dyes include, in particular, nitrophenylenediamines, nitroaminophenols, azo dyes, anthraquinones or indophenols. Preferred substantive dyes are those under the international designations or trade names HC Yellow 2, HC Yellow 4, HC Yellow 5, HC Yellow 6, HC Yellow 12, Acid Yellow 1, Acid Yellow 10, Acid Yellow 23, Acid Yellow 36, HC Orange 1, HC Red 1, HC Red 1, HC Red 13, Acid Red 33, Acid Red 52, HC Red BN, Pigment Red 57: 1, HC Blue 2, HC Blue 12, Disperse Blue 3, Acid Blue 7, Acid Green 50, HC Violet 1, Disperse Violet 1, Disperse Violet 4, Acid Violet 43, Disperse Black 9, Acid Black 1, and Acid Black 52 well-known compounds as well 1,4-diamino-2-nitrobenzene, 2-amino-4-nitrophenol, 1,4-bis (β-hydroxyethyl) amino-2-nitrobenzene, 3-nitro-4- (β-hydroxyethyl) aminophenol, 2- (2'

Hydroxyethyl) amino-4,6-dinitrophenol, 1- (2'-hydroxyethyl) amino-4-methyl-2-nitrobenzene, 1-amino-4- (2'-hydroxyethyl) amino-5-chloro-2-nitrobenzene , 4-amino-3-nitrophenol, 1- (2'-ureidoethyl) amino-4-nitrobenzene, 4-amino-2-nitrodiphenylamine-2'-carboxylic acid, 6-nitro-1,2,3,4-tetrahydroquinoxaline, 2-hydroxy-1,4-naphthoquinone, picramic acid and its salts, 2-amino-6-chloro-4-nitrophenol, 4-ethylamino-3-nitrobenzoic acid and 2-chloro-6-ethylamino-1-hydroxy-4-nitrobenzene ,

Furthermore, the substrates to be decolorized with naturally occurring, natural dyes such as henna red, henna neutral, henna black, chamomile flower, sandalwood, black tea, buckthorn bark, sage, bluewood, madder root, Catechu, Sedre and alkano root are, be colored.

The decolorizing agents according to the invention are intended for the removal of these dyeings and therefore themselves preferably do not contain any dyes, i. no oxidation dye precursors of the developer type and the coupler type and also no substantive dyes.

In a further preferred embodiment, a multi-component packaging unit (kit-of-parts) according to the invention is therefore characterized in that

- The total amount of all the average (a) colorants and oxidation dye precursors at a value of at most 0.2 wt .-%, preferably of at most 0, 1 wt .-%, more preferably of at most 0.05 wt .-% and especially preferably of not more than 0.01% by weight, based on the total weight of the agent (a), and

- The total amount of all dyes contained in the middle (b) and oxidation dye precursors at a value of at most 0.2 wt .-%, preferably of at most 0, 1 wt .-%, more preferably of at most 0.05 wt .-% and especially preferably of not more than 0.01% by weight, based on the total weight of the agent (b).

oxidant

The multicomponent packaging unit according to the invention is used for the reductive decolorization of colored keratinic fibers. In this case, the agents (a) and (b) together form the ready-to-use decolorizing agent which contains a reducing agent. Because of Incompatibility and to avoid exothermic, uncontrollable reactions, therefore, the agents (a) and (b) preferably contain no oxidizing agent.

Oxidizing agents here are understood to mean, in particular, the oxidizing agents which can also be used for oxidative decolorization, for example hydrogen peroxide and persulfates (potassium persulfate (alternatively potassium peroxodisulfate), sodium persulfate (sodium peroxodisulfate) and ammonium persulfate (alternatively ammonium peroxodisulfate)). Preferably, therefore, none of the agents (a) and (b) contains the aforementioned oxidizing agents.

- The total amount of all the average (a) oxidizing agent from the group of peroxides and persulfates at a value of at most 0.2 wt .-%, preferably of at most 0, 1 wt .-%, more preferably of at most 0.05 wt .-% and particularly preferably of at most 0.01 wt .-% - based on the total weight of the agent (a) - is and

- The total amount of all the average (b) oxidizing agent from the group of peroxides and persulfates at a value of at most 0.2 wt .-%, preferably of at most 0, 1 wt .-%, more preferably of at most 0.05 wt .-% and particularly preferably of at most 0.01 wt .-% - based on the total weight of the agent (b) - is.

Other ingredients

Furthermore, the agents (a) and (b) according to the invention may contain other active ingredients, auxiliaries and additives, for example nonionic polymers such as vinylpyrrolidinone / vinylacrylate copolymers, polyvinylpyrrolidinone, vinylpyrrolidinone / vinyl acetate copolymers, polyethylene glycols and polysiloxanes; additional silicones, such as volatile or nonvolatile, straight-chain, branched or cyclic, crosslinked or uncrosslinked polyalkylsiloxanes (such as dimethicones or cyclomethicones), polyarylsiloxanes and / or polyalkylarylsiloxanes, especially polysiloxanes with organofunctional groups, such as substituted or unsubstituted amines (amodimethicones), carboxyl Alkoxy and / or hydroxyl groups (dimethicone copolyols), linear polysiloxane (A) polyoxyalkylene (B) block copolymers, grafted silicone polymers; cationic polymers such as quaternized cellulose ethers, polysiloxanes with quaternary groups, dimethyldiallylammonium chloride polymers, acrylamide-dimethyldiallyl-ammonium chloride copolymers, diethyl sulfate-quaternized dimethylaminoethylmethacrylate-vinylpyrrolidinone copolymers, vinylpyrrolidinone-imidazolinium methochloride copolymers and quaternized polyvinyl alcohol ; zwitterionic and amphoteric polymers; anionic polymers such as polyacrylic acids or crosslinked polyacrylic acids; Structurants such as glucose, maleic acid and lactic acid, hair conditioning compounds such as phospholipids, for example, lecithin and cephalins; Perfume oils, dimethylisosorbide and cyclodextrins; fiber structure improving agents, in particular mono-, di- and oligosaccharides such as glucose, galactose, fructose, fructose and lactose; Dyes for staining the agent; Anti-dandruff agents such as Piroctone Olamine, Zinc Omadine and Climbazole; Amino acids and oligopeptides; Protein hydrolysates on animal and / or vegetable basis, as well as in the form of their fatty acid condensation products or optionally anionically or cationically modified derivatives; vegetable oils; Sunscreens and UV blockers; Active ingredients such as panthenol, pantothenic acid, pantolactone, allantoin, pyrrolidinonecarboxylic acids and their salts, and bisabolol; Polyphenols, in particular hydroxycinnamic acids, 6,7-dihydroxycoumarins, hydroxybenzoic acids, catechins, tannins, leucoanthocyanidins, anthocyanidins, flavanones, flavones and flavonols; Ceramides or pseudoceramides; Vitamins, provitamins and vitamin precursors; Plants extra kte; Fats and waxes such as fatty alcohols, beeswax, montan wax and paraffins; Swelling and penetration substances such as glycerol, propylene glycol monoethyl ether, carbonates, bicarbonates, guanidines, ureas and primary, secondary and tertiary phosphates; Opacifiers such as latex, styrene / PVP and styrene / acrylamide copolymers; Pearlescing agents such as ethylene glycol mono- and distearate and PEG-3-distearate; Pigments and propellants such as propane-butane mixtures, N2O, dimethyl ether, CO2 and air. It is in this context explicitly on the known monographs, z. B. Kh. Schräder, bases and formulations of cosmetics, 2nd edition, Hüthig book publisher, Heidelberg, 1989, referenced that reflect the relevant knowledge of the expert.

Mixture ratio of means (a) and (b)

As already described above, the ready-to-use decolorizing agent is prepared by mixing the agents (a) and (b). In principle, the agents (a) and (b) can be mixed in different mixing ratios, such as, for example, (a) / (b) from 20: 1 to 1:20.

The agent (a) is preferably a solid, powdery, more preferably a pasty agent. However, in order to be able to dissolve it completely when mixed with the agent (b), it is advantageous to use the agent (b) at least in the same amount as the agent (a). It is further preferred to use the agent (b) in an excess.

In a further preferred embodiment, a multicomponent packaging unit according to the invention is therefore characterized in that the amounts of agent (a) in container (A) and agent (b) in container (B) are chosen so that when preparing the application mixture - i. when mixing the agents (a) and (b) - the mixing ratio (a) / (b) at a value of at most 1, preferably at most 0.9, more preferably at most 0.8 and more preferably at most 0.7 lies.

To prepare the mixture, for example, the agent (a) from container (A) completely in container (B) - which already contains the agent (b) - be transferred. In this case, the size of the container (B) is chosen so that the container (B) can hold the total amount of the means (a) and (b) and also mixing the two means (a) and (b), e.g. by shaking or stirring, admits.

Analogously, the preparation of the mixture by complete transfer of the agent (b) from container (B) in container (A) - which already contains the agent (a) - take place. In this case, the should Size of the container (A) are chosen so that the container (A) can accommodate the total amount of the agents (a) and (b) and also a mixing of the two agents (a) and (b), for example by shaking, or stirring , allows.

A further possibility for the preparation of the application mixture is the complete transfer of both agents (a) and (b) from the containers (A) and (B) into a third container (C), which then mixes both agents - e.g. by shaking, or stirring - allowed.

Example: Contains a multi-component packaging unit according to the invention

25 g of the agent (a) in container (A)

- 100 g of the agent (b) in container (B)

To prepare the application mixture, the agent (b) from container (B) is completely transferred into container (A). The agents (a) and (b) are then shaken or stirred. The mixing ratio of the agents (a) / (b) is (25 g / 100 g) = 0.25.

method

The inventive multi-component packaging units (kit-of-parts) described above can be used in reductive decolorization processes.

A second object of the present invention is a process for the reductive decolorization of colored keratinic fibers, comprising the following steps in the order given

(I) preparing an application decolorizing agent by mixing an agent (a) with an agent (b), wherein the agent (a) is an agent as defined in the description of the first subject of the invention, and wherein Means (b) is a means as defined in the description of the first subject of the invention,

(II) applying the ready-to-use decolorizing agent to dyed keratinic fibers,

(III) exposing the decolorizing agent to a period of from 5 to 60 minutes, preferably from 10 to 55 minutes, more preferably from 20 to 50 minutes and particularly preferably from 30 to 45 minutes,

(IV) rinsing the decolorizing agent of the keratinic fibers,

(V) optionally applying an aftertreatment agent to the keratinic fibers, wherein the aftertreatment agent contains at least one amphoteric, zwitterionic and / or anionic surfactant surfactant,

(VI) optionally rinsing the aftertreatment agent from the keratinic fibers.

The steps (I), (II), (III) and (IV) of the process represent the decolorization process of the keratin fibers and are therefore carried out in direct succession in succession. For the sequence of steps (IV) and (V) is in principle no time limit. Thus, step (V) hours, days or, for example, up to two weeks after completion of step (IV) take place. As described above, the agents (a) and (b) are preferably used in an amount ratio (a) / (b) whose value is at most 1, preferably at most 0.9, more preferably at most 0.8, and particularly preferably at at most 0.7.

Correspondingly preferred is therefore also a process for decolorizing dyed keratinic fibers, which is characterized in that the preparation of the ready decolorizing agent in step (I) is carried out by mixing the agent (a) with the agent (b), the two agents in a ratio (a) / (b) are used whose value is at most 1, preferably at most 0.9, more preferably at most 0.8 and more preferably at most 0.7.

The aftertreatment agent optionally usable in process steps (V) and (VI) may be, for example, a shampoo, a conditioner, a gel or a solution. An aftertreatment agent may be used in particular to prevent back-darkening or re-oxidation, which may occur by the action of atmospheric oxygen on the decolourised keratin fibers. To effectively prevent this reoxidation, the aftertreatment should take place before the oxygen in the air has time to act on the reduced keratin fibers. For this reason, post-treatment should, if possible, take place immediately after decolorization (i.e., directly after completion of process step (IV)). For this reason, it is preferred if, between the conclusion of method step (IV) and the start of method step (V), a period of not more than 12 hours, preferably of not more than 6 hours, more preferably of not more than 1 hour and more preferably of not more than 30 minutes lies.

A preferred process according to the invention is thus characterized in that between the process steps (IV) and (V) there is a period of not more than 12 hours, preferably of not more than 6 hours, more preferably of not more than 1 hour and more preferably of not more than 30 minutes.

The application of the post-treatment agent can also be repeated several times, for example if the post-treatment agent is a shampoo which is used regularly after decolorization. If the aftertreatment, i. repeating the steps (V) to (VII), it becomes possible to suppress the reoxidation for a particularly long period of time.

Therefore, a process for the reductive decolorization of colored keratinic fibers is particularly preferred, comprising the following steps in the order given

(I) preparing an application decolorizing agent by mixing an agent (a) with an agent (b), wherein the agent (a) is an agent as defined in the description of the first subject of the invention, and wherein Means (b) is a means as defined in the description of the first subject of the invention

(II) applying the ready-to-use decolorizing agent to dyed keratinic fibers, (III) exposing the decolorizing agent to a period of from 5 to 60 minutes, preferably from 10 to 55 minutes, more preferably from 20 to 50 minutes and particularly preferably from 30 to 45 minutes,

(IV) rinsing the decolorizing agent of the keratinic fibers,

(V) applying an aftertreatment agent to the keratinic fibers, wherein the aftertreatment agent contains at least one amphoteric, zwitterionic and / or anionic surfactant surfactant,

(VI) Rinse the post-treatment agent from the keratinic fibers.

(VII) applying an aftertreatment agent to the keratinic fibers, wherein the aftertreatment agent contains at least one amphoteric, zwitterionic and / or anionic surfactant surfactant,

(VIII) Rinse the post-treatment agent from the keratinic fibers.

In order to prevent reoxidation or subsequent darkening, the aftertreatment agent applied in process step (V) preferably additionally contains at least one acid from the group of citric acid, tartaric acid, malic acid, lactic acid, acetic acid, hydroxyethane-1, 1-diphosphonic acid, methanesulfonic acid, benzoic acid, hydrochloric acid, sulfuric acid, Phosphoric acid, malonic acid and / or oxalic acid.

A particularly preferred method for the reductive decolorization of colored keratinic fibers is therefore further characterized in that the aftertreatment agent applied in step (V) comprises at least one of citric acid, tartaric acid, malic acid, lactic acid, acetic acid, hydroxyethane-1,1-diphosphonic acid , Methanesulfonic acid, benzoic acid, hydrochloric acid, sulfuric acid, phosphoric acid, malonic acid and / or oxalic acid. In other words, a process for the reductive decolorization of colored keratinic fibers is also very particularly preferred, comprising the following steps in the order given

(II) applying the ready-to-use decolorizing agent to dyed keratinic fibers,

(IV) rinsing the decolorizing agent of the keratinic fibers,

(V) applying an aftertreatment agent to the keratinic fibers, wherein the aftertreatment agent - contains at least one amphoteric, zwitterionic and / or anionic surfactant surfactant, and

- contains at least one acid from the group of citric acid, tartaric acid, malic acid, lactic acid, acetic acid, hydroxyethane-1, 1-diphosphonic acid, methanesulfonic acid, benzoic acid, hydrochloric acid, sulfuric acid, phosphoric acid, malonic acid and / or oxalic acid, and

(VI) Rinse the post-treatment agent from the keratinic fibers.

With respect to further preferred embodiments of the method according to the invention mutatis mutandis applies to the means of the invention.

Examples

1.1. coloring

The following formulations were prepared (all data in% by weight):

Coloring cream (F1)

Raw material weight%

Cetearyl alcohol 8.5

C12-C18 fatty alcohols 3.0

Ceteareth-20 0.5

Ceteareth-12 0.5

Plantacare 1200 UP (laurylglucoside, 50-53% aqueous solution) 2.0

Sodium laureth-6 carboxylate (21% aqueous solution) 10.0

Sodium myreth sulfate (68-73% aqueous solution) 2.8

Sodium acrylate, trimethylammoniopropylacrylamide chloride copolymer 3,8 (19 - 21% aqueous solution)

Potassium hydroxide 0.83 p-toluenediamine, sulfate 2.25 m-aminophenol 0.075

2-Amino-3-hydroxyphenyl chloride in 0, 12

Resorcinol 0.62

4-chlororesorcinol 0.26

3-Amino-2-methylamino-6-methoxypyridine 0.04

1, 3-bis (2,4-diaminophenoxy) propane, tetrahydrochloride 0.05

Ammonium sulfate 0, 1

Sodium sulfite 0.4

Ascorbic acid 0, 1

1-Hydroxyethane-1, 1-diphosphonic acid (60% aqueous solution) 0.2

Ammonia (25% aqueous solution) 7.2

Water Ad 100

) xidation agent (Ox)

Raw material weight%

Sodium benzoate 0.04

Dipicolinic acid 0, 1

Disodium pyrophosphate 0, 1

Potassium hydroxide 0.09

1, 2-propylene glycol 1, 0

1-Hydroxyethane-1,1-diphosphonic acid (60% aqueous solution) 0.25 Paraffin Liquidum 0.30

Steartrimonium chloride 0.39

Cetearyl alcohol 3,4

Ceteareth-20 1, 0

Hydrogen peroxide (50% aqueous solution) 12.0

The color cream (F1) and the oxidizing agent (Ox) were mixed in a ratio of 1: 1 and applied to strands of hair (Kerling Euronaturhaar white). The weight ratio application mixture: hair was 4: 1, the exposure time was 30 minutes at a temperature of 32 degrees Celsius. The tresses were then rinsed with water, dried and allowed to rest for at least 24 hours at room temperature. The strands were dyed in a dark brown shade.

1.2. discoloration

The following decolorizing agents were prepared (all data in% by weight of active substance):

Means (a)

⁽⁾ INCI: paraffinium liquidum (mineral oil), ethylene / propylene / styrene copolymer, butylene / ethylene / styrene copolymer

< ² > INCI: Cetearyl alcohol (about 90%) and Sodium Cetearyl Sulfate (about 10.0%)

Means (b)

Means (b) means (b1)

Lanette N < ² > 3.8

PEG-40 Castor Oil 0.7

1-hydroxyethane-1, 1-diphosphonic acid (60

0.5

%)

Water ad 100 The agents (a1) and (b1) were stirred together in the ratio (a1) / (b1) of 1: 4 (ie, (a1) / (b1) = 0.25). The agents (a1) and (b1) could be mixed with one another without the formation of dust; after stirring for one minute, a homogeneous emulsion could be obtained. The ready-to-use decolorizing agent prepared in this way was applied to the hair colored under point 1.1 and allowed to act for 45 minutes at a temperature of 30 ° C. Thereafter, the strands were rinsed with water for 20 seconds. The hair was almost completely decolorized with a very even result.

The agents (a2) and (b1) were stirred in the ratio (a2) / (b1) of 1: 1 (i.e., (a2) / (b1) = 1). The agents (a2) and (b1) could be mixed with each other without developing dust, and after stirring for one minute, a homogeneous emulsion could be obtained.

The ready-to-use decolorizing agent prepared in this way was applied to the hair colored under point 1.1 and allowed to act for 45 minutes at a temperature of 30 ° C. Thereafter, the strands were rinsed with water for 20 seconds. The hair was almost completely decolorized with a very even result.

Claims

claims

1. Multi-component packaging unit (kit-of-parts) for the reductive decolorization of colored keratinic fibers, which are packaged separately

(I) a container (A) containing a cosmetic agent (a) and

(II) a container (B) comprising a cosmetic agent (b),

in which

the agent (a) in container (A)

(a1) one or more reducing agents from the group consisting of sodium dithionite, zinc dithionite, potassium dithionite, sodium sulfite, sodium hydrogen sulfite, potassium sulfite, potassium hydrogen sulfite, ammonium sulfite, sodium thiosulfate, potassium thiosulfate, ammonium thiosulfate, hydroxymethanesulfinic acid, aminomethanesulfinic acid, cysteine, thiolactic acid, sulfanylacetic acid (thioglycolic acid) and / or ascorbic acid,

(a2) one or more fatty constituents from the group of C 2 -C 30 fatty alcohols, C 12 -C 30 fatty acid triglycerides, C 12 -C 30 fatty acid monoglycerides, C 12 -C 30 fatty acid diglycerides, C 12 -C 30 fatty acid esters, hydrocarbons and / or containing silicone oils,

(a3) has a water content of at most 10.0% by weight, based on the total weight of the agent (a),

- the agent (b) in container (B)

2. Multi-component packaging unit (kit-of-parts) according to claim 1, characterized in that the means (a) in container (A)

(a1) one or more reducing agents selected from the group of sodium dithionite, zinc dithionite, potassium dithionite, sodium sulfite, sodium hydrogen sulfite, potassium sulfite, potassium hydrogen sulfite, ammonium sulfite, sodium thiosulfate, potassium thiosulfate and / or ammonium thiosulfate in a total amount of 10.0 to 90.0% by weight from 12.0 to 80.0 wt .-%, more preferably from 14.0 to 70.0 wt .-% and particularly preferably from 16.0 to 60.0 wt .-% - based on the total weight of the composition ( a) - contains.

3. Multi-component packaging unit (kit-of-parts) according to one of claims 1 to 2, characterized in that the means (a) in container (A) or fat constituents from the group (a2) in a total amount of 10.0 to 90.0 wt .-%, preferably from 20.0 to 86.0 wt .-%, more preferably from 25.0 to 84.0 wt .-% and particularly preferably from 30.0 to 80.0 Wt .-% - based on the total weight of the agent (a) - contains.

4. Multi-component packaging unit (kit-of-parts) according to one of claims 1 to 3, characterized in that the means (a) in container (A)

(a2) one or more hydrocarbons in a total amount of from 15.0 to 90.0% by weight, preferably from 20.0 to 85.0% by weight, more preferably from 25.0 to 80.0% by weight % and more preferably from 30.0 to 75.0 wt .-% - based on the total weight of the agent (a) - contains.

5. Multi-component packaging unit (kit-of-parts) according to one of claims 1 to 4, characterized in that the agent (a) in container (A)

6. multi-component packaging unit (kit-of-parts) according to one of claims 1 to 5, characterized in that the means (a) in container (A) in addition

(a4) one or more nonionic surfactants in a total amount of 0, 1 to 15.0 wt .-%, preferably from 0.5 to 12.5 wt .-%, more preferably from 1, 0 to 10.0 wt. -% and particularly preferably from 1, 5 to 5.0 wt .-% - based on the total weight of the agent (a) - contains.

7. multi-component packaging unit (kit-of-parts) according to one of claims 1 to 6, characterized in that the means (a) in container (A) in addition

(a5) one or more nonionic polymers in a total amount of 0.1 to 15.0 wt .-%, preferably from 0.2 to 10.5 wt .-%, more preferably from 0.25 to 7.5 wt. -% and particularly preferably from 0.3 to 5.0 wt .-% - based on the total weight of the agent (a) - contains.

8. Multi-component packaging unit (kit-of-parts) according to one of claims 1 to 7, characterized in that the means (b) in container (B)

9. multi-component packaging unit (kit-of-parts) according to one of claims 1 to 8, characterized in that the means (b) in container (B) in addition

(b2) one or more acids from the group of citric acid, tartaric acid, malic acid, lactic acid, methanesulfonic acid, oxalic acid, malonic acid, benzoic acid, hydrochloric acid, sulfuric acid, phosphoric acid and / or 1-hydroxyethane-1, 1-diphosphonic acid.

10. Multi-component packaging unit (kit-of-parts) according to one of claims 1 to 9, characterized in that the means (b) in container (B)

(b3) has a pH of 1 to 6, preferably from 1, 3 to 4.5, more preferably from 1, 6 to 4.0 and particularly preferably from 2.0 to 3.6.

1 1. Multi-component packaging unit (kit-of-parts) according to one of claims 1 to 10, characterized in that the means (b) in container (B) in addition

(b4) one or more nonionic surfactants from the group

- The fatty acid triglycerides ethoxylated with 10 to 60 ethylene oxide units contains.

12. Multi-component packaging unit (kit-of-parts) according to one of claims 1 to 1 1, characterized in that

the total amount of all dyes and oxidation dye precursors contained in the middle (a) at a value of at most 0.2 wt .-%, preferably of at most 0.1 wt .-%, more preferably of at most 0.05 wt .-% and particularly preferably of not more than 0.01% by weight, based on the total weight of the agent (a), and

the total amount of all dyes and oxidation dye precursors contained in the middle (b) at a value of at most 0.2 wt .-%, preferably of at most 0.1 wt .-%, more preferably of at most 0.05 wt .-% and particularly preferably of not more than 0.01% by weight, based on the total weight of the agent (b).

13. Multi-component packaging unit (kit-of-parts) according to one of claims 1 to 12, characterized in that

- The total amount of all the average (a) oxidizing agent from the group of peroxides and persulfates at a value of at most 0.2 wt .-%, preferably of at most 0, 1 wt .-%, more preferably of at most 0.05 wt .-% and particularly preferably of at most 0.01% by weight - based on the total weight of the agent (a) - and - The total amount of all the average (b) oxidizing agent from the group of peroxides and persulfates at a value of at most 0.2 wt .-%, preferably of at most 0, 1 wt .-%, more preferably of at most 0.05 wt .-% and particularly preferably of at most 0.01% by weight - based on the total weight of the agent (b) -.

14. A process for the reductive decolorization of colored keratinic fibers, comprising the following steps in the order given

(I) Preparation of an application decolorizing agent by mixing a

By means of (a) with a means (b), wherein

- the agent (a) is an agent as defined in any one of claims 1, 2, 3, 4, 5, 6, 7, 12 and / or 13,

- the agent (b) is an agent as defined in any of claims 1, 8, 9, 10, 11, 12 and / or 13,

(II) applying the ready-to-use decolorizing agent to dyed keratinic fibers,

(IV) rinsing the decolorizing agent of the keratinic fibers,

(VI) optionally rinsing the aftertreatment agent from the keratinic fibers.

15. The method according to claim 14, characterized in that the applied in step (V) aftertreatment agent at least one acid from the group of citric acid, tartaric acid, malic acid, lactic acid, acetic acid, hydroxyethane-1, 1-diphosphonic acid, methanesulfonic acid, benzoic acid, hydrochloric acid, sulfuric acid , Phosphoric acid, malonic acid and / or oxalic acid.