Method for dyeing keratinous materials comprising the use of an organosilicon compound, a polyethylene glycol, a dyeing compound and a post-treatment agent - Patents.com

Abstract

The present invention relates to a method for dyeing keratinous materials, in particular human hair, comprising the steps of: applying an agent (a) to the keratinous materials, said agent (a) comprising: (a1) at least one organosilicon compound from the group comprising silanes having 1, 2 or 3 silicon atoms, (a2) at least one first polyethylene glycol having an average molecular weight of 200 to 600 g / mol, and (a3) ​​at least one second polyethylene glycol having an average molecular weight of 1,000 to 35,000 g / mol; and applying an agent (b) to the keratinous materials, said agent (b) comprising: (b1) at least one sealing agent, wherein at least one of the agents (a) and (b) also comprises at least one dyeing compound from the group consisting of pigments and / or direct dyes. The present invention also relates to a multi-component packaged kit (kit of parts) for dyeing keratinous materials.

Description

[Technical field]

[0001] The subject of the present application is a method for treating keratinous materials, in particular human hair, which comprises the application of two agents (a) and (b). Agent (a) is characterized in that it comprises at least one organosilicon compound (a1) and two different polyethylene glycols (a2) and (a3). Agent (b) comprises at least one sealing agent (b1). Furthermore, either agent (a) or agent (b), or both agents (a) and (b), comprise at least one dyeing compound from the group of pigments and / or direct dyes.

[0002] A further subject of the present application is a multi-component packaging unit (kit of parts) for dyeing keratinous materials, in particular human hair, which comprises at least three separately prepared agents (a'), (a'') and (b). The agent (a) used in the above method can be prepared from agents (a') and (a'').

[0003] A further subject of the present application is a multi-component packaging unit (kit of parts) for dyeing keratinous materials, in particular human hair, which comprises at least four separately prepared agents (a'), (a'', (a''') and (b). Agent (a) used in the above method can be prepared from agents (a'), (a'') and (a'''). [Background technology]

[0004] Changing the shape and color of keratin fibers, especially hair, is an important area of ​​modern cosmetics. To change the color of hair, experts know a wide variety of coloring systems, depending on the coloring requirements. For long-lasting, intense dyeing with good fastness properties and good gray hair coverage, oxidation dyes are usually used. Such dyes usually contain oxidation dye precursors, so-called developer components and coupler components, which together generate the actual dye under the influence of an oxidizing agent, such as hydrogen peroxide. Oxidation dyes are characterized by a very long-lasting dyeing result.

[0005] When using direct dyes, the already produced dye diffuses from the colorant into the hair fiber. Compared to oxidative dyes, dyes obtained with direct dyes have a shorter retention period and faster washability. Dye with direct dyes usually remains on the hair for 5 to 20 washes.

[0006] The use of color pigments is known to change the color of hair and / or skin for a short period of time. Color pigments are generally understood to be insoluble dyeing substances. They are present in the dye composition in the form of small particles, without dissolving, and merely adhere to the hair fiber and / or skin surface from the outside. They can therefore usually be removed without residue by washing several times with a detergent containing a surfactant. Various products of this type are commercially available under the name of hair mascara.

[0007] Up until now, the use of oxidative dyes has been the only option, especially if users want a long-lasting dye. However, despite many optimization attempts, the unpleasant ammonia or amine odor cannot be completely avoided in oxidative hair dyes. The hair damage associated with the use of oxidative dyes still has a negative impact on users' hair.

[0008] EP 2168633 addresses the problem of producing long-lasting hair dyes using pigments. The document teaches that when used on hair in combination with pigments, organosilicon compounds, film-forming polymers and solvents, a coloration can be produced that is particularly resistant to wear and / or shampooing.

[0009] It is necessary to provide hair dyes containing pigments which, on the one hand, do not adversely affect high wash fastness and rub fastness, and, on the other hand, do not adversely affect hair properties such as manageability and feel. For this purpose, it is desired to obtain strong dyeings by good coverage of the pigment on the keratinous materials. [Prior art documents] [Patent documents]

[0010] [Patent Document 1] European Patent No. 2168633 Summary of the Invention [Problem to be solved by the invention]

[0011] The object of the present invention was therefore to provide a dyeing system using pigments that has fastness properties comparable to those of oxidation dyeings, and should have particularly good wash fastness properties, but should avoid the use of oxidation dye precursors that are usually used for this purpose. [Means for solving the problem]

[0012] Surprisingly, it has now been found that the above-mentioned problems can be solved in an elegant manner when dyeing keratinous materials, in particular human hair, by a method in which at least two agents (a) and (b) are applied to the keratinous materials (hair). In this case, the first agent (a) comprises at least one organosilicon compound from the group of silanes having one, two or three silicon atoms, and further comprises two different polyethylene glycols (a2) and (a3). The second agent (b) comprises at least one sealing agent (b1).

[0013] When the two agents (a) and (b) were used in the dyeing process, it was possible to dye keratinous materials with particularly high colour strength and good fastness properties.

[0014] By using two different polyethylene glycols (a2) and (a3) ​​in agent (a), it was possible to improve in particular the film formation on keratinous materials.

[0015] A first subject of the invention is a method for dyeing keratinous materials, in particular human hair, comprising the following steps: - applying an agent (a) to the keratinous material, the agent (a) being (a1) at least one organosilicon compound from the group of silanes containing one, two or three silicon atoms; (a2) at least one first polyethylene glycol having an average molecular weight of 200 to 600 g / mol, and (a3) at least one second polyethylene glycol having an average molecular weight of 1,000 to 35,000 g / mol; - applying an agent (b) to the keratinous material, where the agent (b) is (b1) at least one sealing agent; Including, Here, at least one of the agents (a) and (b) further comprises at least one dyeing compound from the group consisting of pigments and / or direct dyes.

[0016] In the research leading to the present invention, it has been found that the successive application of agents (a) and (b) can produce very stable and wash-fast colorings on keratinous materials.Without being limited to this theory, it is believed herein that the simultaneous application of an organosilicon compound (a1) and two different polyethylene glycols (a2) and (a3) ​​results in the formation of a particularly resistant film on keratinous materials.The application of the second agent (b) seals the film applied to the keratinous materials, making it more resistant to washing and / or abrasion.By using at least one dyeing compound from the group of pigments and / or direct dyes in at least one agent (a) and (b), a colored film is obtained.

[0017] In this way, the dye compounds can be permanently fixed on the keratin materials, so that very wash-fast colorations having good resistance to abrasion and / or shampooing can be obtained.

[0018] With the aid of two different polyethylene glycols (a2) and (a3), it was possible to improve the film formation initiated by the application of agent (a) to the keratinous material, so that the adhesion of the dyeing compounds in the film formed could be significantly increased. In this way, extremely rub- and wash-fast colorations were obtained, with good resistance to abrasion and / or shampooing. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0019] <Keratin substances> Keratinous materials include hair, skin, nails (e.g., fingernails and / or toenails). Wool, fur and feathers also fall within the definition of keratinous materials.

[0020] Preferably, keratinous materials are understood to be human hair, human skin and human nails, in particular fingernails and toenails. In particular, keratinous materials are understood to be human hair.

[0021] <Agents (a) and (b)> In the method of the present disclosure, agents (a) and (b) are applied to a keratinous material, in particular human hair. The two agents (a) and (b) are different from each other.

[0022] In other words, a first subject of the invention is a method for treating keratinous materials, in particular human hair, comprising the following steps: - applying an agent (a) to the keratinous material, the agent (a) being (a1) at least one organosilicon compound from the group of silanes containing one, two or three silicon atoms, and (a2) at least one first polyethylene glycol having an average molecular weight of 200 to 600 g / mol, and (a3) at least one second polyethylene glycol having an average molecular weight of 1,000 to 35,000 g / mol; - applying an agent (b) to the keratinous material, where the agent (b) is (b1) at least one sealing agent; Including, Here, at least one of the agents (a) and (b) further comprises at least one dyeing compound from the group consisting of pigments and / or direct dyes.

[0023] <Agent (a)> Agent (a) may be a liquid, gel or cream. Agent (a) may also be in the form of a paste, solid or powder. For hair treatment, particularly for hair dyeing, agent (a) may, for example, be a cream, emulsion, gel or surfactant-containing foaming solution, such as a shampoo, foam, aerosol, foam composition or other preparation suitable for application to hair.

[0024] Agent (a) may contain water. In a preferred embodiment of the present invention, agent (a) contains water, and contains more than 2% by weight of water based on its weight. More preferably, the water content in this embodiment is more than 10% by weight, even more preferably more than 20% by weight, and particularly preferably more than 30% by weight.

[0025] In an alternative, but also preferred, embodiment of the present invention, agent (a) has a low water content or is even anhydrous. A low-water agent (a) contains up to 2% by weight of water, based on the total weight of agent (a). Within this embodiment, agent (a) preferably contains >0-1.5% by weight of water, more preferably >0-1% by weight of water, based on its total weight.

[0026] In addition to water or as an alternative to water, agent (a) can also contain alcohol as a solvent or cosmetic carrier. Suitable alcohols include C1-C4 alcohols, especially ethanol and / or isopropanol. Agent (a) can further contain organic solvents, such as methoxybutanol, benzyl alcohol, ethyl diglycol, or 1,2-propylene glycol. Therefore, all water-soluble organic solvents are preferred.

[0027] Organosilicon compounds from the silane group (a1) As essential component (a1) of the invention, the agent (a) comprises at least one organosilicon compound from the group of the silanes containing one, two or three silicon atoms.

[0028] Particularly preferably, the agent (a) comprises at least one organosilicon compound (a1) selected from silanes having one, two or three silicon atoms, said organosilicon compound comprising one or more hydroxyl and / or hydrolyzable groups per molecule.

[0029] The organosilicon compounds (a1) or organosilanes contained in agent (a) are reactive compounds.

[0030] Organosilicon compounds, also called organosilicon compounds, are compounds with silicon-carbon direct bonds (Si-C) or compounds in which carbon is bonded to a silicon atom via an oxygen, nitrogen or sulfur atom. The organosilicon compounds of the present invention are compounds containing 1 to 3 silicon atoms. The organosilicon compounds particularly preferably contain 1 or 2 silicon atoms.

[0031] According to the IUPAC system, "silane" refers to a class of chemical compounds based on a silicon skeleton and hydrogen. In organosilanes, all or some of the hydrogen atoms are replaced by organic groups, such as (substituted) alkyl and / or alkoxy groups. In organosilanes, some of the hydrogen atoms may be replaced by hydroxyl groups.

[0032] In a particularly preferred embodiment, the method comprises applying to the keratinous material an agent (a), said agent (a) comprising at least one organosilicon compound (a1) selected from silanes containing one, two or three silicon atoms, said organosilicon compound further comprising one or more hydroxyl or hydrolyzable groups per molecule.

[0033] In a very particularly preferred embodiment, the method comprises applying an agent (a) to the keratinous material, said agent (a) comprising at least one organosilicon compound (a1) selected from silanes containing one, two or three silicon atoms, said organosilicon compound also comprising one or more basic chemical functional groups and one or more hydroxyl or hydrolyzable groups per molecule.

[0034] The basic group or basic chemical functionality may be, for example, an amino group, an alkylamino group, a dialkylamino group, or a trialkylamino group, which is preferably linked to the silicon atom via a linker. Preferably, the basic group is an amino group, a C1-C6 alkylamino group, or a di(C1-C6) alkylamino group.

[0035] The hydrolyzable group is preferably a C1-C6 alkoxy group, in particular an ethoxy group or a methoxy group. It is preferred if the hydrolyzable group is directly bonded to the silicon atom. For example, if the hydrolyzable group is an ethoxy group, the organosilicon compound preferably comprises the structural unit R'R''R'''Si-O-CH2-CH3. The groups R', R'' and R'' represent the three remaining free valences of the silicon atom.

[0036] A very particularly preferred method is characterized in that the agent (a) comprises at least one organosilicon compound selected from silanes having one, two or three silicon atoms, said organosilicon compound preferably comprising one or more basic chemical functional groups and one or more hydroxyl or hydrolyzable groups per molecule.

[0037] In particular, good results have been obtained when the agent (a) comprises at least one organosilicon compound (a1) of formula (I) and / or (II).

[0038] The compounds represented by formulas (I) and (II) are organosilicon compounds selected from silanes having one, two or three silicon atoms, said organosilicon compounds containing one or more hydroxyl and / or hydrolyzable groups per molecule.

[0039] In another very particularly preferred embodiment, the method comprises applying an agent to keratinous materials (or human hair), the agent (a) being of formula (I) and / or (II): [ka] [In the formula, - R1 and R2 each independently represent a hydrogen atom or a C1-C6 alkyl group; - L is a linear or branched divalent C1-C 20 is an alkylene group, R3 is a hydrogen atom or a C1-C6 alkyl group; - R4 represents a C1-C6 alkyl group; - a represents an integer from 1 to 3; - b represents the integer 3-a] [ka] [In the formula, - R5, R5' and R5'' are each independently a hydrogen atom or a C1-C6 alkyl group; - R6, R6' and R6'' are independently a C1-C6 alkyl group; - A, A', A'', A''' and A'''' are, independently of one another, straight or branched divalent C1-C 20 represents an alkylene group, R7 and R8 are independently of each other a hydrogen atom, a C1-C6 alkyl group, a hydroxy C1-C6 alkyl group, a C2-C6 alkenyl group, an amino C1-C6 alkyl group or a group of formula (III): [ka] [During the ceremony, - c represents an integer from 1 to 3; - d represents the integer 3-c, - c' represents an integer from 1 to 3; - d' represents the integer 3-c', - c'' represents an integer from 1 to 3; - d'' represents the integer 3-c'', - e represents 0 or 1, - f represents 0 or 1, - g represents 0 or 1, - h represents 0 or 1, - However, at least one of e, f, g and h is different from 0. represents a group represented by the formula: The present invention is characterized in that it contains at least one organosilicon compound (a) represented by the formula:

[0040] The substituents R1, R2, R3, R4, R5, R5', R5'', R6, R6', R6'', R7, R8, L, A, A', A'', A''' and A'''' in the compounds represented by formulae (I) and (II) are illustrated by way of example below. Examples of C1-C6 alkyl groups are methyl, ethyl, propyl, isopropyl, n-butyl, s-butyl and t-butyl, n-pentyl and n-hexyl. Propyl, ethyl and methyl are preferred alkyl groups. Examples of C2-C6 alkenyl groups are vinyl, allyl, but-2-enyl, but-3-enyl and isobutenyl, and preferred C2-C6 alkenyl groups are vinyl and allyl. Preferred examples of hydroxy C1-C6 alkyl groups are hydroxymethyl, 2-hydroxyethyl, 2-hydroxypropyl, 3-hydroxypropyl, 4-hydroxybutyl, 5-hydroxypentyl and 6-hydroxyhexyl groups; the 2-hydroxyethyl group is particularly preferred. Examples of amino C1-C6 alkyl groups are aminomethyl, 2-aminoethyl and 3-aminopropyl. The 2-aminoethyl group is particularly preferred. Straight-chain divalent C1-C 20Examples of alkylene groups include methylene (-CH2-), ethylene (-CH2-CH2-), propylene (-CH2-CH2-CH2-), and butylene (-CH2-CH2-CH2-CH2-). Propylene (-CH2-CH2-CH2-) is particularly preferred. Due to the chain length of the 3C atoms, the divalent alkylene group may be branched. Branched divalent C3-C 20 Examples of alkylene groups are (-CH2-CH(CH3)-) and (-CH2-CH(CH3)-CH2-).

[0041] Formula (I): [ka] In the organosilicon compound of the formula: the radicals R1 and R2 independently of one another represent a hydrogen atom or a C1-C6 alkyl group. Very particularly preferably, the functional groups R1 and R2 both represent a hydrogen atom.

[0042] Straight or branched chain divalent C1-C 20 The structural unit or linker -L-, representing an alkylene group, is located in the center of the organosilicon compound.

[0043] Divalent C1-C 20 The alkylene group may alternatively be a divalent or double bonded C1-C 20 Sometimes referred to as an alkylene group, it is meant that each L group can form two bonds: one bond from the amino group R1R2N to the linker L, and the second bond between the linker L and the silicon atom.

[0044] Preferably, -L- is a linear divalent C-C 20It is more preferred that -L- represents a linear divalent C1-C6 alkylene group. Particularly preferred -L- represents a methylene group (-CH2-), an ethylene group (-CH2-CH2-), a propylene group (-CH2-CH2-CH2-) or a butylene group (-CH2-CH2-CH2-CH2-). Very particularly preferred that L represents a propylene group (-CH2-CH2-CH2-).

[0045] A linear propylene group (-CH2-CH2-CH2-) may alternatively be referred to as a propane-1,3-diyl group.

[0046] Formula (I): [ka] Organosilicon compounds represented by the formula: are silicon-containing groups -Si(OR3) a (R4) b One end of the

[0047] Terminal structural unit -Si(OR3) a (R4) b In the formula (I), the functional group R3 is hydrogen or a C1-C6 alkyl group, and the functional group R4 is a C1-C6 alkyl group. Particularly preferably, R3 and R4, independently of each other, represent a methyl group or an ethyl group.

[0048] Here, a represents an integer between 1 and 3, and b represents an integer 3-a. When a represents the number 3, b is equal to 0. When a represents the number 2, b is equal to 1. When a represents the number 1, b is equal to 2.

[0049] Particularly resistant films were obtained when the agent (a) contained at least one organosilicon compound (a1) of formula (I) in which the functional groups R3, R4, independently of one another, represent a methyl or ethyl group.

[0050] When using the method for dyeing keratinous materials, colorations with the best washing fastness can also be obtained when agent (a) comprises at least one organosilicon compound of formula (I) in which the functional groups R3, R4, independently of one another, represent a methyl or ethyl group.

[0051] Moreover, colourings with the best washing fastness can be obtained when agent (a) comprises at least one organosilicon compound of formula (I) in which a represents the number 3. In this case, functional group b represents the number 0.

[0052] In a further preferred embodiment, the agent (a) used in the process is characterized in that it comprises at least one organosilicon compound (a1) of formula (I), in which R3 and R4, independently of one another, are a methyl or ethyl group; - a represents the number 3, - b represents the number 0.

[0053] In another preferred embodiment, the method comprises the step of: [ka] [In the formula, - R1 and R2 both represent hydrogen atoms; - L represents a linear divalent C1-C6 alkylene group, preferably a propylene group (-CH2-CH2-CH2-) or an ethylene group (-CH2-CH2-), R3 represents a hydrogen atom, an ethyl group or a methyl group; R4 represents a methyl or ethyl group; - a represents the number 3, - b represents the number 0] The present invention is characterized in that it contains at least one organosilicon compound (a1) represented by the following formula:

[0054] Particularly suitable organosilicon compounds of formula (I) for achieving the object according to the invention are - (3-aminopropyl)triethoxysilane [ka] - (3-aminopropyl)trimethoxysilane [ka] - 1-(3-aminopropyl)silanetriol [ka] - (2-aminoethyl)triethoxysilane [ka] - (2-aminoethyl)trimethoxysilane [ka] - 1-(2-aminoethyl)silanetriol [ka] - (3-Dimethylaminopropyl)triethoxysilane [ka] - (3-Dimethylaminopropyl)trimethoxysilane [ka] - 1-(3-dimethylaminopropyl)silanetriol [ka] - (2-Dimethylaminoethyl)triethoxysilane [ka] - (2-dimethylaminoethyl)trimethoxysilane, and [ka] - 1-(2-dimethylaminoethyl)silanetriol [ka] It is.

[0055] In a further preferred embodiment, the method further comprises the step of: - (3-aminopropyl)triethoxysilane - (3-aminopropyl)trimethoxysilane - 1-(3-aminopropyl)silanetriol - (2-aminoethyl)triethoxysilane - (2-aminoethyl)trimethoxysilane - 1-(2-aminoethyl)silanetriol - (3-Dimethylaminopropyl)triethoxysilane - (3-Dimethylaminopropyl)trimethoxysilane - 1-(3-dimethylaminopropyl)silanetriol - (2-Dimethylaminoethyl)triethoxysilane - (2-dimethylaminoethyl)trimethoxysilane, and / or - 1-(2-dimethylaminoethyl)silanetriol The present invention is characterized in that it contains at least one organosilicon compound (a1) selected from the group consisting of:

[0056] The organosilicon compounds represented by formula (I) are commercially available. For example, (3-aminopropyl)trimethoxysilane can be purchased from Sigma-Aldrich. Also, (3-aminopropyl)triethoxysilane is commercially available from Sigma-Aldrich.

[0057] In a further embodiment, the agent has formula (II): [ka] The organosilicon compound (a1) comprises at least one organosilicon compound represented by the formula:

[0058] The organosilicon compound represented by formula (II) has a silicon-containing group (RO) at each of its two ends. c (R6) d Si- and -Si(R6') d' (OR5') c' has.

[0059] The central part of the molecule represented by formula (II) contains the group -(A) e - and -[NR7-(A')] f - and - [O-(A'')] g - and -[NR8-(A'')] h - is present, where each of the functional groups e, f, g and h, independently of one another, represents the number 0 or 1, with the proviso that at least one of e, f, g and h is different from 0. In other words, the organosilicon compound of formula (II) comprises at least one atomic group from the group -(A)- and -[NR7-(A')]- and -[O-(A'')]- and -[NR8-(A'')]-.

[0060] Two terminal structural units (RO) c (R6) d Si- and -Si(R6') d' (OR5') c' In the formula, the functional groups R5, R5' and R5'' each independently represent a hydrogen atom or a C1-C6 alkyl group. The functional groups R6, R6' and R6'' each independently represent a C1-C6 alkyl group.

[0061] Here, c represents an integer between 1 and 3, and d represents an integer 3-c. When c represents the number 3, d is equal to 0. When c represents the number 2, d is equal to 1. When c represents the number 1, d is equal to 2.

[0062] Similarly, c' represents an integer between 1 and 3, and d' represents the integer 3-c'. If c' represents the number 3, then d' is equal to 0. If c' represents the number 2, then d' is equal to 1. If c' represents the number 1, then d' is equal to 2.

[0063] The most stable films or colorations with the best washing fastness could be obtained when the functional groups c and c' both represent the number 3. In this case, d and d' both represent the number 0.

[0064] In another preferred embodiment, the method comprises the step of: [ka] [In the formula, R5 and R5' are independently a methyl or ethyl group; c and c' together represent the number 3, - d and d' both represent the number 0] The present invention is characterized in that it contains at least one organosilicon compound (a1) represented by the following formula:

[0065] When c and c' are both the number 3 and d and d' are both the number 0, the organosilicon compound according to the invention of formula (IIa) is: [ka] is equivalent to.

[0066] The functional groups e, f, g and h each independently represent the number 0 or 1, and at least one functional group from e, f, g and h is different from 0. Thus, the symbols e, f, g and h represent the atomic group -(A) e - and -[NR7-(A')] f - and - [O-(A'')] g - and -[NR8-(A'')] h - is located at the center of the organosilicon compound represented by formula (II).

[0067] In this regard, the presence of certain atomic groups has proven to be particularly beneficial in terms of increasing the washing fastness. Particularly good results have been obtained when at least two of the functional groups e, f, g and h represent the number 1. Very particularly preferably, e and f both represent the number 1. Furthermore, very particularly preferably, g and h both represent the number 0.

[0068] When e and f both represent the number 1 and g and h both represent the number 0, the organosilicon compound according to the invention has the formula (IIb): [ka] is equivalent to.

[0069] The functional groups A, A', A'', A''' and A'''' are each independently a linear or branched, divalent C1-C 20 Preferably, the functional groups A, A', A'', A''' and A'''' are each independently a linear divalent C-C alkylene group. 20 It is more preferred that the functional groups A, A', A'', A''' and A'''' independently of one another are linear divalent C1-C6 alkylene groups. It is particularly preferred that the functional groups A, A', A'', A''' and A'''' independently of one another are methylene (-CH2-), ethylene (-CH2-CH2-), propylene (-CH2-CH2-CH2-) or butylene (-CH2-CH2-CH2-CH2-). It is very particularly preferred that the functional groups A, A', A'', A''' and A'''' are propylene (-CH2-CH2-CH2-).

[0070] Divalent C1-C 20 The alkylene group may alternatively be a divalent (or zweibindige) C1-C 20 They are sometimes referred to as alkylene groups, which means that each of the atomic groups A, A', A'', A''' and A'''' can form two bonds.

[0071] The linear propylene group (-CH2-CH2-CH2-) may alternatively be referred to as a propane-1,3-diyl group.

[0072] When the functional group f represents the number 1, the organosilicon compound of formula (II) comprises the structural group -[NR7-(A')]-.

[0073] When the functional group h represents the number 1, the organosilicon compound of formula (II) comprises the structural group -[NR8-(A''')]-.

[0074] In this specification, the functional groups R7 and R8 are each independently a hydrogen atom, a C1-C6 alkyl group, a hydroxy C1-C6 alkyl group, a C2-C6 alkenyl group, an amino C1-C6 alkyl group or a group represented by the formula (III): [ka] It represents a group represented by the following formula:

[0075] Most preferably, the functional groups R7 and R8 independently of each other represent a hydrogen atom, a methyl group, a 2-hydroxyethyl group, a 2-alkenyl group, a 2-aminoethyl group or a group of formula (III).

[0076] When functional group f represents the number 1 and functional group h represents the number 0, the organosilicon compound contains the atomic group [NR7-(A')] but does not contain the atomic group [NR8-(A''')]. When functional group R7 does represent the atomic group shown in formula (III), agent (a) contains an organosilicon compound having three reactive silane groups.

[0077] In another preferred embodiment, the method comprises the step of: [ka] [In the formula, - e and f together represent the number 1, - g and h together represent the number 0, - A and A' are each independently a linear divalent C1-C6 alkylene group; - R7 represents a hydrogen atom, a methyl group, a 2-hydroxyethyl group, a 2-alkenyl group, a 2-aminoethyl group or a group represented by formula (III). The present invention is characterized in that it contains at least one organosilicon compound (a1) represented by the following formula:

[0078] In a further preferred embodiment, the method further comprises the step of: [In the formula, - e and f together represent the number 1, - g and h together represent the number 0, - A and A' are each independently a methylene group (-CH-), an ethylene group (-CH-CH-) or a propylene group (-CH-CH-CH-), - R7 represents a hydrogen atom, a methyl group, a 2-hydroxyethyl group, a 2-alkenyl group, a 2-aminoethyl group or a group represented by formula (III). The present invention is characterized in that it contains at least one organosilicon compound represented by the formula:

[0079] Suitable organosilicon compounds of formula (II) for achieving the object according to the invention are - 3-(trimethoxysilyl)-N-[3-(trimethoxysilyl)propyl]-1-propanamine [ka] - 3-(triethoxysilyl)-N-[3-(triethoxysilyl)propyl]-1-propanamine [ka] - N-methyl-3-(trimethoxysilyl)-N-[3-(trimethoxysilyl)propyl]-1-propanamine [ka] - N-methyl-3-(triethoxysilyl)-N-[3-(triethoxysilyl)propyl]-1-propanamine [ka] - 2-[bis[3-(trimethoxysilyl)propyl]amino]ethanol [ka] - 2-[bis[3-(triethoxysilyl)propyl]amino]ethanol [ka] - 3-(trimethoxysilyl)-N,N-bis[3-(trimethoxysilyl)propyl]-1-propanamine [ka] - 3-(triethoxysilyl)-N,N-bis[3-(triethoxysilyl)propyl]-1-propanamine [ka] - N1,N1-bis[3-(trimethoxysilyl)propyl]-1,2-ethanediamine [ka] - N1,N1-bis[3-(triethoxysilyl)propyl]-1,2-ethanediamine [ka] - N,N-bis[3-(trimethoxysilyl)propyl]-2-propen-1-amine [ka] - N,N-bis[3-(triethoxysilyl)propyl]-2-propen-1-amine [ka] It is.

[0080] The organosilicon compounds of formula (II) are commercially available, for example bis(trimethoxysilylpropyl)amine having CAS number 82985-35-1 can be purchased from Sigma-Aldrich.

[0081] Bis[3-(triethoxysilyl)propyl]amine, having the CAS number 13497-18-2, can be purchased, for example, from Sigma-Aldrich.

[0082] N-methyl-3-(trimethoxysilyl)-N-[3-(trimethoxysilyl)propyl]-1-propanamine, alternatively referred to as bis(3-trimethoxysilylpropyl)-N-methylamine, can be purchased commercially from Sigma-Aldrich or Fluorochem.

[0083] 3-(triethoxysilyl)-N,N-bis[3-(triethoxysilyl)propyl]-1-propanamine, having the CAS number 18784-74-2, can be purchased, for example, from Fluorochem or Sigma-Aldrich.

[0084] In a further preferred embodiment, the method comprises the step of: - 3-(trimethoxysilyl)-N-[3-(trimethoxysilyl)propyl]-1-propanamine - 3-(triethoxysilyl)-N-[3-(triethoxysilyl)propyl]-1-propanamine - N-methyl-3-(trimethoxysilyl)-N-[3-(trimethoxysilyl)propyl]-1-propanamine - N-methyl-3-(triethoxysilyl)-N-[3-(triethoxysilyl)propyl]-1-propanamine - 2-[bis[3-(trimethoxysilyl)propyl]amino]ethanol - 2-[bis[3-(triethoxysilyl)propyl]amino]ethanol - 3-(trimethoxysilyl)-N,N-bis[3-(trimethoxysilyl)propyl]-1-propanamine - 3-(triethoxysilyl)-N,N-bis[3-(triethoxysilyl)propyl]-1-propanamine - N1,N1-bis[3-(trimethoxysilyl)propyl]-1,2-ethanediamine - N1,N1-bis[3-(triethoxysilyl)propyl]-1,2-ethanediamine N,N-bis[3-(trimethoxysilyl)propyl]-2-propen-1-amine, and / or - N,N-bis[3-(triethoxysilyl)propyl]-2-propen-1-amine The present invention is characterized in that it contains at least one organosilicon compound (a1) selected from the group consisting of:

[0085] In further tests, in particular dye tests, it has been found that the agent (a) applied to the keratinous material in the present method has the formula (IV): [ka] It has also been found to be very particularly advantageous if the organosilicon compound comprises at least one organosilicon compound of the formula

[0086] The compound represented by formula (IV) is an organosilicon compound selected from silanes having one, two or three silicon atoms, the organosilicon compound containing one or more hydroxyl and / or hydrolyzable groups per molecule.

[0087] Organosilicon compounds, or compounds of formula (IV): [ka] [In the formula, - R9, C1-C 18 represents an alkyl group, - R 10 represents a hydrogen atom or a C1-C6 alkyl group, - R11 represents a C1-C6 alkyl group, - k represents an integer from 1 to 3; - m represents an integer 3-k] The organosilicon compounds of the formula: are also referred to as silanes of the alkyl-alkoxy-silane or alkyl-hydroxy-silane type.

[0088] In a further preferred embodiment, the method comprises the step of: [ka] [In the formula, - R9, C1-C 18 represents an alkyl group, - R 10 represents a hydrogen atom or a C1-C6 alkyl group, - R 11 represents a C1-C6 alkyl group, - k represents an integer from 1 to 3; - m represents an integer 3-k] The present invention is characterized in that it contains at least one organosilicon compound (a1) represented by the following formula:

[0089] In a further preferred embodiment, the method further comprises the step of: (a) comprising, in addition to the organosilicon compound of formula (I), an organosilicon compound of formula (IV): [ka] [In the formula, - R9, C1-C 18 represents an alkyl group, - R 10 represents a hydrogen atom or a C1-C6 alkyl group, - R 11 represents a C1-C6 alkyl group, - k represents an integer from 1 to 3; - m represents an integer 3-k] The present invention is characterized in that it contains at least one further organosilicon compound represented by the formula:

[0090] In a further preferred embodiment, the method further comprises the step of: (a) comprising, in addition to the organosilicon compound of formula (II), an organosilicon compound of formula (IV): [ka] [In the formula, - R9, C1-C 18 represents an alkyl group, - R 10 represents a hydrogen atom or a C1-C6 alkyl group, - R 11 represents a C1-C6 alkyl group, - k represents an integer from 1 to 3; - m represents an integer 3-k] The present invention is characterized in that it contains at least one further organosilicon compound represented by the formula:

[0091] In a further preferred embodiment, the method comprises the step of: the agent (a) being, in addition to the organosilicon compounds of formula (I) and / or (II), a compound of formula (IV): [ka] [In the formula, - R9, C1-C 18 represents an alkyl group, - R 10 represents a hydrogen atom or a C1-C6 alkyl group, - R 11 represents a C1-C6 alkyl group, - k represents an integer from 1 to 3; - m represents an integer 3-k] The present invention is characterized in that it contains at least one further organosilicon compound represented by the formula:

[0092] In the organosilicon compound of formula (IV), the functional group R9 is C1-C 18 This C1-C alkyl group. 18 The alkyl group is saturated and may be linear or branched. Preferably, R is a linear C-C 18R9 represents an alkyl group. Preferably, R9 represents a methyl group, an ethyl group, an n-propyl group, an n-butyl group, an n-pentyl group, an n-hexyl group, an n-octyl group, an n-dodecyl group or an n-octadecyl group. Particularly preferably, R9 represents a methyl group, an ethyl group, an n-hexyl group or an n-octyl group.

[0093] In the organosilicon compound of formula (IV), the functional group R 10 represents a hydrogen atom or a C1-C6 alkyl group. 10 represents a methyl group or an ethyl group.

[0094] In the organosilicon compound of formula (IV), the functional group R 11 represents a C1-C6 alkyl group. Particularly preferably, R 11 represents a methyl group or an ethyl group.

[0095] Furthermore, k represents an integer from 1 to 3, and m represents an integer 3-k. When k represents the number 3, m is equal to 0. When k represents the number 2, m is equal to 1. When k represents the number 1, m is equal to 2.

[0096] When an agent (a) containing at least one organosilicon compound (a1) of formula (IV) is used in the process, it is possible to obtain particularly stable films, i.e. colorations with particularly good washing fastness, where the functional group m is the number 0.

[0097] Particularly suitable organosilicon compounds for achieving the object according to the invention are those of formula (IV) - Methyltrimethoxysilane [ka] - Methyltriethoxysilane [ka] - Ethyltrimethoxysilane [ka] - Ethyltriethoxysilane [ka] - n-Hexyltrimethoxysilane [ka] - n-Hexyltriethoxysilane [ka] - n-Octyltrimethoxysilane [ka] - n-Octyltriethoxysilane [ka] - n-dodecyltrimethoxysilane, and / or [ka] - n-Dodecyltriethoxysilane [ka] n-octadecyltrimethoxysilane and / or n-octadecyltriethoxysilane.

[0098] In another preferred embodiment, the method comprises the step of: - Methyltrimethoxysilane - Methyltriethoxysilane - Ethyltrimethoxysilane - Ethyltriethoxysilane - Propyltrimethoxysilane - Propyltriethoxysilane - Hexyltrimethoxysilane - Hexyltriethoxysilane - Octyltrimethoxysilane - Octyltriethoxysilane - Dodecyltrimethoxysilane - Dodecyltriethoxysilane - Octadecyltrimethoxysilane - Octadecyltriethoxysilane The present invention is characterized in that it contains at least one organosilicon compound (a1) represented by formula (IV) selected from the group consisting of:

[0099] The organosilicon compounds mentioned above are reactive compounds. In this respect, it has been found to be advantageous if the agent (a) comprises one or more organosilicon compounds (a1) in a total amount of 0.1 to 20% by weight, preferably 1 to 15% by weight, particularly preferably 2 to 8% by weight, relative to the total weight of the agent (a).

[0100] In a further preferred embodiment, the method is characterized in that the agent (a) comprises one or more organosilicon compounds (a1) in a total amount of 0.1 to 20% by weight, preferably 1 to 15% by weight, particularly preferably 2 to 8% by weight, based on the total weight of agent (a).

[0101] To achieve particularly good dyeing results, it is particularly advantageous to use organosilicon compounds of formula (I) and / or (II) in specific amount ranges in agent (a).Particularly preferably, agent (a) comprises one or more organosilicon compounds of formula (I) and / or (II) in a total amount of 0.1 to 10% by weight, preferably 0.5 to 5% by weight, particularly preferably 0.5 to 3% by weight, based on the total weight of agent (a).

[0102] In another preferred embodiment, the method is characterized in that the agent (a) comprises one or more organosilicon compounds of formula (I) and / or (II) in a total amount of 0.1 to 10% by weight, preferably 0.5 to 5% by weight, particularly preferably 0.5 to 3% by weight, based on the total weight of agent (a).

[0103] Furthermore, it has also proven to be very particularly preferred if the organosilicon compounds of formula (IV) are present in agent (a) in certain ranges of amounts. Particularly preferably, agent (a) comprises one or more organosilicon compounds of formula (IV) in a total amount of 0.1 to 20% by weight, preferably 2 to 15% by weight, particularly preferably 4 to 9% by weight, based on the total weight of agent (a).

[0104] In another preferred embodiment, the method is characterized in that the agent (a) comprises one or more organosilicon compounds of formula (IV) in a total amount of 0.1 to 20% by weight, preferably 2 to 15% by weight, particularly preferably 3.2 to 10% by weight, relative to the total weight of agent (a).

[0105] In the course of the research which led to the present invention, it was found that a particularly stable and uniform film on keratinous materials can also be obtained if agent (a) comprises two organosilicon compounds which are structurally different from one another.

[0106] In another preferred embodiment, the method is characterized in that the agent (a) comprises at least two organosilicon compounds which are structurally different from one another.

[0107] In a preferred embodiment, the method is characterized in that an agent (a) comprising at least one organosilicon compound of formula (I) and at least one organosilicon compound of formula (IV) is applied to the keratinous material.

[0108] In an explicitly very particularly preferred embodiment, the method is characterized in that the agent (a) is applied to the keratinous material, which further comprises at least one organosilicon compound of formula (I) selected from the group consisting of (3-aminopropyl)triethoxysilane and (3-aminopropyl)trimethoxysilane, and at least one organosilicon compound of formula (IV) selected from the group consisting of methyltrimethoxysilane, methyltriethoxysilane, ethyltrimethoxysilane, ethyltriethoxysilane, propyltrimethoxysilane, propyltriethoxysilane, hexyltrimethoxysilane and hexyltriethoxysilane.

[0109] In another preferred embodiment, the method further comprises the step of: - 0.5 to 5% by weight of at least one first organosilicon compound (a1) selected from the group consisting of (3-aminopropyl)trimethoxysilane, (3-aminopropyl)triethoxysilane, (2-aminoethyl)trimethoxysilane, (2-aminoethyl)triethoxysilane, (3-dimethylaminopropyl)trimethoxysilane, (3-dimethylaminopropyl)triethoxysilane, (2-dimethylaminoethyl)trimethoxysilane and (2-dimethylaminoethyl)triethoxysilane, and - 3.2 to 10% by weight of at least one second organosilicon compound (a1) selected from the group consisting of methyltrimethoxysilane, methyltriethoxysilane, ethyltrimethoxysilane, ethyltriethoxysilane, propyltrimethoxysilane, propyltriethoxysilane, hexyltrimethoxysilane, hexyltriethoxysilane, octyltrimethoxysilane, octyltriethoxysilane, dodecyltrimethoxysilane, dodecyltriethoxysilane, octadecyltrimethoxysilane and octadecyltriethoxysilane The present invention is characterized by comprising:

[0110] In this embodiment, agent (a) contains one or more organosilicon compounds of a first group in a total amount of 0.5 to 3% by weight, the organosilicon compounds of the first group being selected from the group consisting of (3-aminopropyl)trimethoxysilane, (3-aminopropyl)triethoxysilane, (2-aminoethyl)trimethoxysilane, (2-aminoethyl)triethoxysilane, (3-dimethylaminopropyl)trimethoxysilane, (3-dimethylaminopropyl)triethoxysilane, (2-dimethylaminoethyl)trimethoxysilane and / or (2-dimethylaminoethyl)triethoxysilane.

[0111] In this embodiment, agent (a) contains one or more second group organosilicon compounds in a total amount of 3.2 to 10 wt.% selected from the group consisting of methyltrimethoxysilane, methyltriethoxysilane, ethyltrimethoxysilane, ethyltriethoxysilane, propyltrimethoxysilane, propyltriethoxysilane, hexyltrimethoxysilane, hexyltriethoxysilane, octyltrimethoxysilane, octyltriethoxysilane, dodecyltrimethoxysilane, dodecyltriethoxysilane, octadecyltrimethoxysilane and octadecyltriethoxysilane.

[0112] For organosilicon compounds having at least one hydrolyzable group, hydrolysis occurs even when a small amount of water is added. This hydrolysis product and / or the organosilicon compound having at least one hydroxyl group can react with each other in a condensation reaction. Therefore, both the organosilicon compound having at least one hydrolyzable group and their hydrolysis product and / or condensation product can be present in agent (a). When using organosilicon compounds having at least one hydroxyl group, both the organosilicon compound having at least one hydroxyl group and their condensation product can be present in agent (a).

[0113] Condensation products are understood to be products formed by the reaction of at least two or more organosilicon compounds, each having at least one hydroxyl or hydrolyzable group per molecule, with the elimination of water and / or the elimination of alkanol. The condensation products may be, for example, dimers, trimers or oligomers, with the condensation products being in equilibrium with the monomers. Depending on the amount of water used or consumed in the hydrolysis, the equilibrium shifts from the monomeric organosilicon compounds to the condensation products.

[0114] Very particularly good results have been obtained when organosilicon compounds of formula (I) and / or (II) are used in this method.However, as already mentioned above, hydrolysis / condensation already begins with traces of water, so the hydrolysis and / or condensation products of organosilicon compounds (I) and / or (II) are also included in this embodiment.

[0115] <Polyethylene glycol (a2) and (a3)> When agent (a) is applied to the keratinous material, the organosilicon compound (a1), which preferably contains one or more hydroxyl or hydrolyzable groups per molecule, is first hydrolyzed and oligomerized or polymerized in the presence of water. The hydrolysis products or oligomers thus formed have a particularly high affinity for the surface of the keratinous material and form a film there. If agent (a) further comprises at least one dyeing compound, the film formed on the keratinous material is a colored film. Following the application of agent (a), agent (b) is now applied, in which a sealing agent (b1) contained in agent (b) seals the film, which may be colored. If agent (b) further comprises at least one dyeing compound, either the uncolored film produced in the first step is sealed and colored, or the color impression of the colored film produced in the first step is enhanced or modified depending on the dyeing compound used, or the color impression of the first film is enhanced or modified by forming a second colored film on the first colored film. If agent (b) does not contain any dye compounds, the colored film produced in the first step is sealed in. The successive application of agents (a) and (b) produces a dyeing that is particularly resistant to external influences.

[0116] As essential components (a2) and (a3) ​​of the present invention, the agent (a) applied in the dyeing method comprises at least one first polyethylene glycol having an average molecular weight of 200 to 600 g / mol, and at least one second polyethylene glycol having an average molecular weight of 1,000 to 35,000 g / mol.

[0117] It has been found that the presence of two different polyethylene glycols (a2) and (a3) ​​in agent (a) improves the distribution of agent (a) on the keratin fibers, which results in a particularly homogeneous and stable film and thus in a particularly stable and intense coloration.

[0118] Polyethylene glycol (PEG) has the general molecular formula C, depending on the chain length. 2n H 4n+2 On+1 The polymer is a liquid, pasty, or solid polymer having the formula:

[0119] Polyethylene glycols having an average molecular weight of 200 to 400 g / mol are liquids, polyethylene glycols having an average molecular weight of 400 to 600 g / mol are pasty, and polyethylene glycols having an average molecular weight of 1,000 g / mol or more are solids.

[0120] It is essential to the present invention that the agent (a) used in the method comprises at least one liquid or pasty polyethylene glycol and at least one solid polyethylene glycol.

[0121] In a very particularly preferred embodiment, the agent (a) used in the method comprises, as the first polyethylene glycol (a2) having an average molecular weight of 200 to 600 g / mol, a polyethylene glycol having an average molecular weight of 400 g / mol.

[0122] In a further very particularly preferred embodiment, the agent (a) used in the method comprises, as the second polyethylene glycol (a3) ​​having an average molecular weight of 1,000 to 35,000 g / mol, a polyethylene glycol with an average molecular weight of 6,000 g / mol.

[0123] In a particularly preferred embodiment, the proportion of the first polyethylene glycol (a2) in the agent (a) is higher than the proportion of the second polyethylene glycol (a3).

[0124] In a preferred embodiment, the method is characterized in that the agent (a) comprises a first polyethylene glycol having an average molecular weight of 200 to 600 g / mol and a second polyethylene glycol having an average molecular weight of 1,000 to 35,000 g / mol in a weight ratio in the range of 15:1 to 1:1, preferably 12:1 to 2:1, in particular 10:1 to 5:1.In a very preferred embodiment, the method is characterized in that the weight ratio of the first polyethylene glycol (a2) to the second polyethylene glycol in the agent (a) is in the range of 8:1.

[0125] Particularly good results have been obtained when the agent (a) comprises a first polyethylene glycol (a2) having an average molecular weight of 200 to 600 g / mol and a second polyethylene glycol (a3) ​​having an average molecular weight of 1,000 to 35,000 g / mol in a total amount of 30 to 75% by weight, preferably 50 to 75% by weight and very particularly preferably 60 to 75% by weight, based on the total weight of the agent (a).

[0126] Particularly good results have been obtained when the agent (a) comprises a first polyethylene glycol (a2) with an average molecular weight of 400 g / mol and a second polyethylene glycol (a3) ​​with an average molecular weight of 6,000 g / mol in a total amount of 30 to 75% by weight, preferably 50 to 75% by weight, very particularly preferably 60 to 75% by weight, based on the total weight of the agent (a).

[0127] <Agent (b)> The method for treating keratinous materials comprises, in addition to the application of agent (a), also the application of agent (b). The agent (b) used in the method is characterized in that it comprises at least one sealing agent (b1).

[0128] Agent (b) is a post-treatment agent, and by applying agent (b) to the keratinous material treated with agent (a), the durability of the colored product obtained by this method is further improved. In particular, by applying agent (b), the washing fastness and abrasion resistance of the colored product obtained by this method can be improved.

[0129] It is preferred that the sealing agent comprises a compound selected from the group consisting of a film-forming polymer, an alkalizing agent, an acidifying agent, and mixtures thereof.

[0130] It may be preferred that the sealing agent (b1) comprises a film-forming polymer.

[0131] A polymer is a macromolecule having a molecular weight of at least 1,000 g / mol, preferably at least 2,500 g / mol, particularly preferably at least 5,000 g / mol, and composed of similar repeating organic units. The polymer of the present invention may be a synthetically prepared polymer prepared by polymerizing one monomer type, or a synthetically prepared polymer prepared by polymerizing various structurally different types of monomer types. When a polymer is prepared by polymerizing one type of monomer, the polymer is a homopolymer. When polymerized using structurally different monomer types, the resulting polymer is called a copolymer.

[0132] The maximum molecular weight of the polymer depends on the degree of polymerization (the number of monomers being polymerized) and the batch size, which is determined by the polymerization method. In the context of the present invention, the maximum molecular weight of the film-forming polymer as the sealing agent (b1) is 10 7 g / mol or less, preferably 10 6 g / mol or less, particularly preferably 10 5 It is preferably less than g / mol.

[0133] In the sense of the present invention, a film-forming polymer means a polymer capable of forming a film on a substrate, for example on a keratinous substance, a keratinous fiber, or on a coated keratinous fiber. The formation of the film can be detected, for example, by observing the keratinous substance treated with the polymer under a microscope.

[0134] The film-forming polymer (b1) in agent (b) may be hydrophilic or hydrophobic.

[0135] In a first embodiment, it may be preferred to use in agent (b) at least one hydrophobic film-forming polymer as sealing agent (b1).

[0136] A hydrophobic polymer is understood to mean a polymer having a solubility in water at 25° C. (760 mmHg) of less than 1% by weight.

[0137] For example, the water solubility of a film-forming, hydrophobic polymer can be measured in the following way: Add 1 g of polymer to a beaker. Make up to 100 g with water. Add a stir bar and heat the mixture to 25° C. while stirring on a magnetic stirrer. Allow the mixture to stir for 60 minutes. Then visually evaluate the aqueous mixture. If the polymer-water mixture cannot be visually evaluated due to high turbidity of the mixture, filter the mixture. If some undissolved polymer remains on the filter paper, the solubility of the polymer is less than 1% by weight.

[0138] Mention may be made here in particular of acrylic type polymers, polyurethanes, polyesters, polyamides, polyureas, cellulose polymers, nitrocellulose polymers, silicone polymers, acrylamide type polymers and polyisoprene:

[0139] Particularly suitable film-forming, hydrophobic polymers are, for example, polymers from the group of copolymers of acrylic acid, copolymers of methacrylic acid, homopolymers or copolymers of acrylic acid esters, homopolymers or copolymers of methacrylic acid esters, homopolymers or copolymers of acrylic acid amides, homopolymers or copolymers of methacrylic acid amides, copolymers of vinylpyrrolidone, copolymers of vinyl alcohol, copolymers of vinyl acetate, homopolymers or copolymers of ethylene, homopolymers or copolymers of propylene, homopolymers or copolymers of styrene, polyurethanes, polyesters and / or polyamides.

[0140] In a further preferred embodiment, the method is characterized in that the agent (b) comprises as sealing agent (b1) at least one film-forming, hydrophobic polymer selected from the group consisting of copolymers of acrylic acid, copolymers of methacrylic acid, homopolymers or copolymers of acrylic acid esters, homopolymers or copolymers of methacrylic acid esters, homopolymers or copolymers of acrylic acid amides, homopolymers or copolymers of methacrylic acid amides, copolymers of vinylpyrrolidone, copolymers of vinyl alcohol, copolymers of vinyl acetate, homopolymers or copolymers of ethylene, homopolymers or copolymers of propylene, homopolymers or copolymers of styrene, polyurethanes, polyesters and / or polyamides.

[0141] In particular, film-forming hydrophobic polymers selected from the group of synthetic polymers, polymers obtained by free-radical polymerization or natural polymers have proven to be particularly suitable for achieving the objectives according to the invention.

[0142] Further particularly suitable film-forming hydrophobic polymers are, for example, homopolymers or copolymers of olefins, such as cycloolefins, butadiene, isoprene or styrene, vinyl ethers, vinyl amides, at least one C1-C 20 Alkyl, aryl or C2-C 10 It may be selected from esters or amides of (meth)acrylic acid bearing a hydroxyalkyl group.

[0143] Further film-forming hydrophobic polymers may be selected from homo- or copolymers of isooctyl (meth)acrylate, isononyl (meth)acrylate, 2-ethylhexyl (meth)acrylate, lauryl (meth)acrylate, isopentyl (meth)acrylate, n-butyl (meth)acrylate, isobutyl (meth)acrylate, ethyl (meth)acrylate, methyl (meth)acrylate, tert-butyl (meth)acrylate, stearyl (meth)acrylate, hydroxyethyl (meth)acrylate, 2-hydroxypropyl (meth)acrylate, 3-hydroxypropyl (meth)acrylate, and / or mixtures thereof.

[0144] Further film-forming hydrophobic polymers are (meth)acrylamides, n-alkyl-(meth)acrylamides, and in particular C2-C 18 It may be selected from those having alkyl groups, such as homopolymers or copolymers of N-ethyl-acrylamide, n-tert-butylacrylamide, N-octylacrylamide, n-di(C1-C4)alkyl(meth)acrylamide, and the like.

[0145] Further preferred anionic copolymers are copolymers of acrylic acid, methacrylic acid or their C1-C6 alkyl esters, for example sold under the INCI name Acrylates Copolymer. A suitable commercial product is, for example, Aculyn® 33 from Rohm & Haas. However, copolymers of acrylic acid, methacrylic acid or their C1-C6 alkyl esters and esters of ethylenically unsaturated acids with alkoxylated fatty alcohols are more preferred. Suitable ethylenically unsaturated acids are in particular acrylic acid, methacrylic acid and itaconic acid, and suitable alkoxylated fatty alcohols are in particular Steareth-20 or ceteth-20.

[0146] Most particularly preferred commercially available polymers are, for example, Aculyn® 22 (acrylates / Steareth-20 methacrylate copolymer), Aculyn® 28 (acrylates / Beheneth-25 methacrylate copolymer), Structure 2001® (acrylates / Steareth-20 itaconate copolymer), Structure 3001® (acrylates / Ceteth-20 itaconate copolymer), Structure Plus® (acrylates / aminoacrylate C10-30 alkyl PEG-20 itaconate copolymer), Carbopol® 1342, 1382, Ultrez 20, Ultrez 21 (acrylates / C10-30 alkyl acrylate crosspolymer), Synthalen W 2000® (acrylates / Palmeth25 acrylates copolymer) or Soltex OPT (acrylates / C12-22 alkyl methacrylate copolymer) sold by Rohme and Haas.

[0147] As examples of suitable polymers based on vinyl monomers, mention may be made of homo- and copolymers of N-vinylpyrrolidone, vinylcaprolactam, vinyl-(C1-C6)alkyl-pyrrole, vinyloxazole, vinylthiazole, vinylpyrimidine or vinylimidazole.

[0148] In addition, octylacrylamide / acrylates / butylaminoethyl methacrylate copolymers, such as those commercially available, for example, under the trade names AMPHOMER® or LOVOCRYL® 47 from NATIONAL STARCH, or acrylates / octylacrylamide copolymers sold under the trade names DERMACRYL® LT and DERMACRYL® 79 from NATIONAL STARCH, are very particularly suitable.

[0149] Examples of suitable olefin-based polymers are homopolymers and copolymers of ethylene, propylene, butene, isoprene, and butadiene.

[0150] In the context of a further embodiment, block copolymers comprising at least one block of styrene or a derivative of styrene may be used as the film-forming hydrophobic polymer. These block copolymers may be copolymers comprising, in addition to a styrene block, one or more further blocks, such as, for example, styrene / ethylene, styrene / ethylene / butylene, styrene / butylene, styrene / isoprene, styrene / butadiene, etc. The corresponding polymers are commercially available from BASF under the trade name "Luvitol HSB".

[0151] Surprisingly, it has been found that very particularly strong and wash-fast colorations can be obtained when the agent (b) comprises at least one film-forming polymer as sealing agent (b1) selected from the group of homopolymers and copolymers of acrylic acid, homopolymers and copolymers of methacrylic acid, homopolymers and copolymers of acrylic acid esters, homopolymers and copolymers of methacrylic acid esters, homopolymers and copolymers of acrylic acid amides, homopolymers and copolymers of methacrylic acid amides, homopolymers and copolymers of vinylpyrrolidone, homopolymers and copolymers of vinyl alcohol, homopolymers and copolymers of vinyl acetate, homopolymers and copolymers of ethylene, homopolymers and copolymers of propylene, homopolymers and copolymers of styrene, polyurethanes, polyesters and polyamides.

[0152] In a further preferred embodiment, the method is characterized in that the agent (b) comprises at least one film-forming polymer as sealing agent (b1) selected from the group of homopolymers and copolymers of acrylic acid, homopolymers and copolymers of methacrylic acid, homopolymers and copolymers of acrylic acid esters, homopolymers and copolymers of methacrylic acid esters, homopolymers and copolymers of acrylic acid amides, homopolymers and copolymers of methacrylic acid amides, homopolymers and copolymers of vinylpyrrolidone, homopolymers and copolymers of vinyl alcohol, homopolymers and copolymers of vinyl acetate, homopolymers and copolymers of ethylene, homopolymers and copolymers of propylene, homopolymers and copolymers of styrene, polyurethanes, polyesters and polyamides.

[0153] In the context of further embodiments, it may be preferred to use at least one hydrophilic film-forming polymer as sealing agent (b1) in agent (b).

[0154] A hydrophilic polymer is understood to mean a polymer having a solubility in water at 25° C. (760 mmHg) of more than 1% by weight, preferably more than 2% by weight.

[0155] The water solubility of a film-forming hydrophilic polymer can be measured, for example, by the following method: Add 1 g of polymer to a beaker. Add water to 100 g. Add a stir bar and heat the mixture to 25° C. while stirring on a magnetic stirrer. Allow the mixture to stir for 60 minutes. Then evaluate the aqueous mixture visually. A completely dissolved polymer will appear macroscopically homogeneous. If the polymer-water mixture cannot be evaluated visually due to high turbidity of the mixture, filter the mixture. If no undissolved polymer remains on the filter paper, the solubility of the polymer is greater than 1 wt %.

[0156] As film-forming, hydrophilic polymers non-ionic, anionic and cationic polymers can be used.

[0157] Suitable film-forming hydrophilic polymers may, for example, be selected from the group consisting of polyvinylpyrrolidone (co)polymers, polyvinyl alcohol (co)polymers, vinyl acetate (co)polymers, carboxyvinyl (co)polymers, acrylic acid (co)polymers, methacrylic acid (co)polymers, natural gums, polysaccharides and / or acrylamide (co)polymers.

[0158] Furthermore, it is very particularly preferable to use polyvinylpyrrolidone (PVP) and / or copolymers which contain vinylpyrrolidone as film-forming hydrophilic polymers.

[0159] In a further very particularly preferred embodiment, the method is characterized in that the agent (b) comprises at least one film-forming, hydrophilic polymer selected from the group consisting of polyvinylpyrrolidone (PVP) and copolymers of polyvinylpyrrolidone.

[0160] It is further preferred if the agent comprises polyvinylpyrrolidone (PVP) as the film-forming hydrophilic polymer. Surprisingly, the wash fastness of the colorations obtained with agent (b) containing PVP was also very good.

[0161] Particularly suitable polyvinylpyrrolidones are available, for example, under the name Luviskol® K from BASF SE, in particular under the name Luviskol® K 90 or Luviskol® K 85 from BASF SE.

[0162] The polymer PVP K30 sold by Ashland (ISP, POI Chemical) can also be used as a further specifically very particularly suitable polyvinylpyrrolidone (PVP). PVP K 30 is a polyvinylpyrrolidone that is highly soluble in cold water and has the CAS number 9003-39-8. The molecular weight of PVP K 30 is about 40,000 g / mol.

[0163] Further very particularly suitable polyvinylpyrrolidones are the substances available from the company BASF known under the trade names LUVITEC K 17, LUVITEC K 30, LUVITEC K 60, LUVITEC K 80, LUVITEC K 85, LUVITEC K 90 and LUVITEC K 115.

[0164] The use of film-forming hydrophilic polymers from the group of the copolymers of polyvinylpyrrolidone also leads to particularly good, washfast dyeing results.

[0165] In this respect, mention may be made, as particularly suitable film-forming hydrophilic polymers, of vinylpyrrolidone-vinyl ester copolymers such as those sold under the trademark Luviskol® (BASF). Luviskol® VA 64 and Luviskol® VA 73 are respectively vinylpyrrolidone / vinyl acetate copolymers and are particularly preferred non-ionic polymers.

[0166] Of the vinylpyrrolidone-containing copolymers, styrene / VP copolymers and / or vinylpyrrolidone / vinyl acetate copolymers and / or VP / DMAPA acrylate copolymers and / or VP / vinylcaprolactam / DMAPA acrylate copolymers are very particularly preferably used in the cosmetic compositions.

[0167] Vinylpyrrolidone-vinyl acetate copolymers are sold by BASF SE under the name Luviskol® VA. For example, VP / vinylcaprolactam / DMAPA acrylate copolymers are sold by Ashland Inc. under the trade name Aquaflex® SF-40. For example, VP / DMAPA acrylate copolymers are sold by Ashland under the name Styleze CC-10, which is a highly preferred vinylpyrrolidone-containing copolymer.

[0168] As further suitable copolymers of polyvinylpyrrolidone, mention may be made of those obtained by reaction of N-vinylpyrrolidone with at least one further monomer from the group consisting of V-vinylformamide, vinyl acetate, ethylene, propylene, acrylamide, vinylcaprolactam, vinylcaprolactone and / or vinyl alcohol.

[0169] In a further very particularly preferred embodiment, the method is characterized in that the agent (b) comprises at least one film-forming, hydrophilic polymer (b1) selected from the group consisting of polyvinylpyrrolidone (PVP), vinylpyrrolidone / vinyl acetate copolymer, vinylpyrrolidone / styrene copolymer, vinylpyrrolidone / ethylene copolymer, vinylpyrrolidone / propylene copolymer, vinylpyrrolidone / vinyl caprolactam copolymer, vinylpyrrolidone / vinyl formamide copolymer and / or vinylpyrrolidone / vinyl alcohol copolymer.

[0170] Further suitable copolymers of vinylpyrrolidone are those known under the INCI name Maltodextrin / VP Copolymer.

[0171] Furthermore, when non-ionic film-forming hydrophilic polymers were used as the film-forming hydrophilic polymer, intensely colored keratinous materials, especially hair, having very good wash fastness properties were obtained.

[0172] In the context of a further embodiment, agent (b) may comprise at least one non-ionic, film-forming, hydrophilic polymer as sealing agent (b1).

[0173] According to the present invention, nonionic polymers are understood to be polymers that do not have structural units with permanent cationic or anionic groups, which must be compensated by counterions to maintain electrical neutrality under standard conditions in protic solvents (such as water).For example, quaternized ammonium groups are cationic groups, but protonated amines are not.For example, carboxyl groups and sulfonic acid groups are anionic groups.

[0174] Non-ionic, film-forming, hydrophilic polymers such as: - polyvinylpyrrolidone, - copolymers of N-vinylpyrrolidone with vinyl esters of carboxylic acids containing 2 to 18 carbon atoms, in particular copolymers of N-vinylpyrrolidone with vinyl acetate; - copolymers of N-vinylpyrrolidone, N-vinylimidazole and methacrylamide, - copolymers of N-vinylpyrrolidone, N-vinylimidazole and acrylamide, - copolymers of N-vinylpyrrolidone and N,N-di(C1-C4)alkylamino-(C2-C4)alkylacrylamide, Very particular preference is given to agents which comprise at least one polymer selected from the group consisting of:

[0175] When copolymers of N-vinylpyrrolidone and vinyl acetate are used, it is preferred that the molar ratio of structural units contained in the N-vinylpyrrolidone monomer to structural units contained in the vinyl acetate monomer is in the range of 20:80 to 80:20, in particular 30:70 to 60:40. Suitable copolymers of vinylpyrrolidone and vinyl acetate are available, for example, from BASF SE under the trademarks Luviskol® VA 37, Luviskol® VA 55, Luviskol® VA 64 and Luviskol® VA 73.

[0176] In this case, further particularly preferred polymers are selected from the polymers with the INCI name VP / methacrylamide / vinylimidazole copolymer, which are available, for example, from BASF SE under the trade name Luviset Clear.

[0177] A further particularly preferred non-ionic, film-forming, hydrophilic polymer is the copolymer of N-vinylpyrrolidone and N,N-dimethylaminopropyl methacrylamide, which is sold, for example, under the INCI name VP / DMAPA acrylate copolymer, e.g. Styleze® CC 10 by the company ISP.

[0178] The cationic polymer is a copolymer of N-vinylpyrrolidone, N-vinylcaprolactam, N-(3-dimethylaminopropyl) methacrylamide and 3-(methacryloylamino)propyl-lauryldimethylammonium chloride (INCI name: Polyquaternium-69), which is sold, for example, by the company ISP under the trade name AquaStyle® 300 (28-32% by weight of active substance in an ethanol-water mixture, molecular weight 350,000).

[0179] Further suitable film-forming hydrophilic polymers are e.g. vinylpyrrolidone-vinylimidazolium methchloride copolymers offered under the names Luviquat® FC 370, FC 550 and the INCI name Polyquaternium-16, as well as FC 905 and HM 552; - vinylpyrrolidone-vinylcaprolactam-acrylate terpolymers with acrylic esters and acrylic amides as third monomers, for example those sold under the name Aquaflex® SF 40; It is.

[0180] Polyquaternium-11 is a reaction product of diethyl sulfate with a copolymer of vinylpyrrolidone and dimethylaminoethyl methacrylate. Suitable commercial products are available, for example, from BASF SE under the names Dhyquart® CC 11 and Luviquat® PQ 11 PN, or from Ashland Inc under the names Gafquat 440, Gafquat 734, Gafquat 755 or Gafquat 755N.

[0181] Polyquaternium-46 is a reaction product of vinylcaprolactam and vinylpyrrolidone with methylvinylimidazolium methosulfate, and is available, for example, under the name Luviquat® Hold from BASF SE. Polyquaternium-46 is preferably used in an amount of 1-5% by weight, based on the total weight of the cosmetic composition. Polyquaternium-46 is very particularly preferably used in combination with cationic guar compounds. Polyquaternium-46 is most preferably even used in combination with cationic guar compounds and polyquaternium-11.

[0182] For example, acrylic acid polymers, which may be present in uncrosslinked or crosslinked form, can be used as suitable anionic film-forming, hydrophilic polymers. Corresponding products are commercially sold, for example, under the trade names Carbopol 980, 981, 954, 2984 and 5984 by the company Lubrizol, or else under the names Synthalen M and Synthalen K by 3V Sigma (The Sun Chemicals, Inter Harz).

[0183] Examples of suitable film-forming, hydrophilic polymers from the group of natural gums are xanthan gum, gellan gum, and carob gum.

[0184] Examples of suitable film-forming hydrophilic polymers from the group of polysaccharides are hydroxyethyl cellulose, hydroxypropyl cellulose, ethyl cellulose, and carboxymethyl cellulose.

[0185] Suitable film-forming, hydrophilic polymers from the group of acrylamide are, for example, polymers prepared starting from monomers of (meth)acrylamido-C1-C4-alkylsulfonic acids or their salts. The corresponding polymers may be selected from the polymers of polyacrylamido-methanesulfonic acid, polyacrylamido-ethanesulfonic acid, polyacrylamido-propanesulfonic acid, poly-2-acrylamido-2-methylpropanesulfonic acid, poly-2-methylacrylamido-2-methylpropanesulfonic acid, and / or poly-2-methylacrylamido-n-butanesulfonic acid.

[0186] Preferred polymers of poly(meth)acrylamide-C1-C4-alkylsulfonic acid are crosslinked and at least 90% neutralized. These polymers may be crosslinked or uncrosslinked.

[0187] Crosslinked and fully or partially neutralized polymers of the poly-2-acrylamido-2-methylpropanesulfonic acid type are known by the INCI names "ammonium polyacrylamido-2-methyl-propanesulfonate" or "ammonium polyacryldimethyltauramide".

[0188] Another preferred polymer of this type is a crosslinked poly-2-acrylamido-2 methyl-propanesulfonic acid polymer, which is partially neutralized with ammonia, sold under the tradename Hostacerin AMPS by Clariant.

[0189] In a further explicitly very particularly preferred embodiment the method is characterized in that the agent (b) comprises at least one anionic film-forming polymer as sealing agent (b1).

[0190] In this connection, it is preferred that the agent (b) contains, as sealing agent (b1), at least one structural unit of the formula (PI) and at least one structural unit of the formula (P-II): : [ka] [In the formula, M represents a hydrogen atom or ammonium (NH4), sodium, potassium, 1 / 2 magnesium or 1 / 2 calcium. The best results could be achieved when the composition contained at least one film-forming polymer comprising:

[0191] In a further preferred embodiment, the method further comprises the step of: the agent (b) comprises, as sealing agent (b1), at least one structural unit of the formula (PI) and at least one structural unit of the formula (P-II): [ka] [In the formula, M represents a hydrogen atom or ammonium (NH4), sodium, potassium, 1 / 2 magnesium or 1 / 2 calcium. The composition is characterized in that it comprises at least one film-forming polymer comprising

[0192] When M represents a hydrogen atom, the structural unit represented by formula (PI) is based on an acrylic acid unit. When M represents an ammonium counterion, the structural unit of formula (PI) is based on the ammonium salt of acrylic acid. When M represents a sodium counterion, the structural unit of formula (PI) is based on the sodium salt of acrylic acid. When M represents a potassium counterion, the structural unit of formula (PI) is based on the potassium salt of acrylic acid.

[0193] When M is 1 / 2 equivalent of a magnesium counter ion, the structural unit represented by formula (PI) is based on the magnesium salt of acrylic acid. When M is 1 / 2 equivalent of a calcium counter ion, the structural unit of formula (PI) is based on the calcium salt of acrylic acid.

[0194] The film-forming polymers are preferably used in the agent (b) in amounts within certain ranges. Herein, it has proven to be particularly preferred for achieving the objectives of the present invention if the agent (b) comprises one or more film-forming polymers as sealing agent (b1) in a total amount of 0.1 to 18% by weight, preferably 1 to 16% by weight, more preferably 5 to 14.5% by weight, very particularly preferably 8 to 12% by weight, relative to the total weight of the agent (b).

[0195] In a further preferred embodiment, the method is characterized in that the agent (b) comprises one or more film-forming polymers as sealing agent (b1) in a total amount of 0.1 to 18% by weight, preferably 1 to 16% by weight, more preferably 5 to 14.5% by weight and most particularly preferably 8 to 12% by weight, relative to the total weight of agent (b).

[0196] The application of agent (b), which comprises a film-forming polymer as a sealant (b1), is intended to seal and / or fix the optionally colored film initially produced by the application of agent (a). By applying the second agent (b), which comprises a film-forming polymer as a sealant (b1), the film-forming polymer is deposited in the form of a further film on the optionally colored film produced in the first layer. The multilayer film system thus produced has improved resistance to external influences.

[0197] In this case, it may be preferable that the film formed by the agent (b) that contains a film-forming polymer as sealing agent (b1) is not colored. This ensures that the wear of the second film formed by the agent (b) that occurs to some extent does not result in any color change in the entire film system. Therefore, it may be very particularly preferable if the agent (b) does not contain or contains only small amounts of dyeing compounds.

[0198] In an alternative embodiment, the sealing agent (b1) comprises an alkalizing agent.

[0199] Particularly preferably, the alkalizing agent is selected from the group consisting of ammonia, C2-C6 alkanolamines, basic amino acids, alkali metal hydroxides and alkaline earth metal hydroxides.

[0200] In the context of a further particularly preferred embodiment, the method is characterized in that it comprises as sealing agent (b1) at least one alkalizing agent selected from the group consisting of ammonia, C2-C6 alkanolamines, basic amino acids, alkali metal hydroxides, alkaline earth metal hydroxides, alkali metal silicates, alkali metal metasilicates, alkaline earth metal silicates, alkaline earth metal metasilicates, alkali metal carbonates and alkaline earth metal carbonates.

[0201] It has been found that after-treatment with an agent (b) containing ammonia has a particularly positive effect on improving the wash fastness and rub fastness of the colorations obtained in the process.

[0202] In the context of a further very particularly preferred embodiment, the method is characterized in that the composition (b) comprises ammonia as sealing agent (b1).

[0203] Good results have also been obtained when the composition (b) comprises at least one C2-C6 alkanolamine as sealing agent (b1).

[0204] The alkanolamine that can be used in composition (b) can be preferably selected from the group of primary amines having C2-C6 alkyl group structure with at least one hydroxyl group.Preferred alkanolamine is selected from the group formed by 2-aminoethan-1-ol (monoethanolamine), 3-aminopropan-1-ol, 4-aminobutan-1-ol, 5-aminopentan-1-ol, 1-aminopropan-2-ol, 1-aminobutan-2-ol, 1-aminopentan-2-ol, 1-aminopentan-3-ol, 1-aminopentan-4-ol, 3-amino-2-methylpropan-1-ol, 1-amino-2-methylpropan-2-ol, 3-aminopropane-1,2-diol and 2-amino-2-methylpropane-1,3-diol.

[0205] In a further preferred embodiment, the method according to the invention is characterized in that the composition (b) comprises as sealing agent (b1) at least one alkalizing agent from the group consisting of alkanolamines preferably selected from the group 2-aminoethan-1-ol (monoethanolamine), 3-aminopropan-1-ol, 4-aminobutan-1-ol, 5-aminopentan-1-ol, 1-aminopropan-2-ol, 1-aminobutan-2-ol, 1-aminopentan-2-ol, 1-aminopentan-3-ol, 1-aminopentan-4-ol, 3-amino-2-methylpropan-1-ol, 1-amino-2-methylpropan-2-ol, 3-aminopropane-1,2-diol and 2-amino-2-methylpropane-1,3-diol.

[0206] Good results were also obtained when the composition (b) contained at least one basic amino acid as sealing agent (b1).

[0207] Amino acids in the sense of the present invention are organic compounds which contain at least one protonatable amino group and at least one -COOH or one -SO3H group in their structure. Preferred amino acids are aminocarboxylic acids, in particular α-(alpha)-aminocarboxylic acids and ω-aminocarboxylic acids, with α-aminocarboxylic acids being particularly preferred.

[0208] According to the invention, a basic amino acid is understood to mean an amino acid which has an isoelectric point pI greater than 7.0.

[0209] Basic α-aminocarboxylic acids contain at least one asymmetric carbon atom. In the context of the present invention, both possible enantiomers can be used equally as specific compounds or their mixtures, especially as racemates. However, it is particularly advantageous to use the naturally occurring isomer, usually the L-configuration.

[0210] The basic amino acid is preferably selected from the group formed by arginine, lysine, ornithine and histidine, more preferably arginine and lysine. Thus, in another particularly preferred embodiment, the method is characterized in that the sealing agent (b1) is an alkalizing agent comprising a basic amino acid selected from the group consisting of arginine, lysine, ornithine and / or histidine.

[0211] In a further preferred embodiment, the method is characterized in that the agent (b) comprises as sealing agent (b1) at least one alkalizing agent selected from the group of basic amino acids, preferably selected from the group of arginine, lysine, ornithine and histidine.

[0212] Good results have also been obtained when the composition (b) comprises at least one alkali metal hydroxide as sealing agent (b1). As examples of suitable alkali metal hydroxides, mention may be made of sodium hydroxide and potassium hydroxide.

[0213] Good results have also been obtained when the composition (b) contains as sealing agent (b1) an alkalizing agent that contains at least one alkaline earth metal hydroxide. As examples of suitable alkaline earth metal hydroxides, mention may be made of magnesium hydroxide, calcium hydroxide and barium hydroxide.

[0214] Good results have also been obtained when the agent (b) comprises at least one alkali metal silicate and / or alkali metal metasilicate as sealing agent (b1). Suitable alkali metal silicates are, for example, sodium silicate and potassium silicate. Suitable alkali metal metasilicates are, for example, sodium metasilicate and potassium metasilicate.

[0215] Good results have also been obtained when the agent (b) contains at least one alkali metal carbonate and / or alkaline earth metal carbonate as sealing agent (b1). Suitable alkali metal carbonates are, for example, sodium carbonate and potassium carbonate. Suitable alkaline earth metal carbonates are, for example, magnesium carbonate and calcium carbonate.

[0216] Within the group of said sealing agents (b1) in the form of alkalizing agents, ammonia, C2-C6 alkanolamines, basic amino acids and alkali metal hydroxides have proven to be particularly suitable.

[0217] In the context of a further particularly preferred embodiment, the method is characterized in that the agent (b) comprises as sealing agent (b1) at least one alkalizing agent selected from the group consisting of ammonia, C2-C6 alkanolamines, basic amino acids and alkali metal hydroxides.

[0218] In the context of a further particularly preferred embodiment, the method is characterized in that the composition (b) comprises as sealing agent (b1) at least one alkalizing agent selected from the group consisting of ammonia, 2-aminoethan-1-ol, 3-aminopropan-1-ol, 4-aminobutan-1-ol, 5-aminopentan-1-ol, 1-aminopropan-2-ol, 1-aminobutan-2-ol, 1-aminopentan-2-ol, 1-aminopentan-3-ol, 1-aminopentan-4-ol, 3-amino-2-methylpropan-1-ol, 1-amino-2-methylpropan-2-ol, 3-aminopropane-1,2-diol, 2-amino-2-methylpropane-1,3-diol, arginine, lysine, ornithine, histidine, sodium hydroxide and potassium hydroxide.

[0219] The agent (b) comprises an alkalizing agent as a sealing agent (b1) in a cosmetic carrier, preferably an aqueous cosmetic carrier.

[0220] In this respect it has been found to be advantageous if the agent (b) comprises from 5.0 to 99.0% by weight, preferably from 15.0 to 97.0% by weight, more preferably from 25.0 to 97.0% by weight, even more preferably from 35.0 to 97.0% by weight and very particularly preferably from 45.0 to 97.0% by weight of water, relative to the total weight of the agent (b).

[0221] In the context of a further embodiment, the method is characterized in that agent (b) comprises 5.0 to 99.0% by weight, preferably 15.0 to 97.0% by weight, more preferably 25.0 to 97.0% by weight, even more preferably 35.0 to 97.0% by weight and very particularly preferably 45.0 to 97.0% by weight of water, based on the total weight of agent (b).

[0222] The alkalizing agent contained in agent (b) influences the pH of agent (b), whereby it has been found that certain alkaline pH values ​​have an advantageous effect on the coloring performance and fastness properties of the colorings achievable in the present method.

[0223] For this reason, the agent (b) containing an alkalizing agent as sealing agent (b1) preferably has a pH of 7.0 to 12.0, preferably 7.5 to 11.5, more preferably 8.0 to 11.0, very particularly preferably 8.5 to 9.5.

[0224] The pH can be measured using conventional methods known in the art, such as pH measurement using a glass electrode via a combination electrode, or pH measurement via a pH test paper.

[0225] In a further very particularly preferred embodiment, the method is characterized in that the agent (b) comprises an alkalizing agent as sealing agent (b1) and has a pH of 7.0 to 12.0, preferably 7.5 to 11.5, more preferably 8.0 to 11.0 and very particularly preferably 8.5 to 9.5.

[0226] pH values ​​within the meaning of the present invention are pH values ​​measured at a temperature of 22°C.

[0227] In yet another alternative embodiment, the sealing agent (b1) comprises an acidifying agent.

[0228] Particularly preferably, the acidifying agent is selected from the group consisting of inorganic acids, organic acids, and mixtures thereof.

[0229] Good results have been obtained when the composition (b) comprises at least one inorganic acid as sealing agent (b1). Suitable inorganic acids are, for example, phosphoric acid, sulfuric acid and / or hydrochloric acid, with sulfuric acid being particularly preferred.

[0230] In a further preferred embodiment, the method is characterized in that the agent (b) comprises as sealing agent (b1) at least one acidifying agent from the group of inorganic acids, preferably selected from the group consisting of phosphoric acid, sulfuric acid, hydrochloric acid and mixtures thereof.

[0231] In a further context, in an even more preferred embodiment, the method is characterized in that the agent (b) comprises sulfuric acid as sealing agent (b1).

[0232] Good results were also obtained when the agent (b) contained at least one organic acid as sealing agent (b1). The organic acids were formic acid, acetic acid, propionic acid, butyric acid, isobutyric acid, valeric acid, isovaleric acid, pivalic acid, oxalic acid, malonic acid, succinic acid, glutaric acid, glyceric acid, glyoxylic acid, adipic acid, pimelic acid, suberic acid, azelaic acid, sebacic acid, propiolic acid, crotonic acid, isocrotonic acid, elaidic acid, maleic acid, fumaric acid, muconic acid, citraconic acid, mesaconic acid, camphoric acid, benzoic acid, o, m, p-phthalic acid, naphthoic acid, toluic acid, hydratropic acid, atropic acid, tetrahydrofuran ... ure), cinnamic acid, isonicotinic acid, nicotinic acid, bicarbamic acid, 4,4'-dicyano-6,6'-binicotinic acid, 8-carbamoyloctanoic acid, 1,2,4-pentanetricarboxylic acid, 2-pyrrolecarboxylic acid, 1,2,4,6,7-naphthalenepentaacetic acid, malonaldehyde acid, 4-hydroxyphthalamic acid, 1-pyrazolecarboxylic acid, gallic acid or propanetricarboxylic acid, glycolic acid, gluconic acid, lactic acid, maleic acid, ascorbic acid, malic acid, tartaric acid, citric acid and mixtures thereof.

[0233] In a further preferred embodiment, the method comprises the step of preparing a sealing agent (b) comprising at least one acidifying agent selected from the group consisting of organic acids, wherein the organic acids are formic acid, acetic acid, propionic acid, butyric acid, isobutyric acid, valeric acid, isovaleric acid, pivalic acid, oxalic acid, malonic acid, succinic acid, glutaric acid, glyceric acid, glyoxylic acid, adipic acid, pimelic acid, suberic acid, azelaic acid, sebacic acid, propiolic acid, crotonic acid, isocrotonic acid, elaidic acid, maleic acid, fumaric acid, muconic acid, citraconic acid, mesaconic acid, camphoric acid, benzoic acid, o,m,p-phthalic acid, naphthoic acid, It is characterized in that it is preferably selected from the group consisting of toluic acid, hydratropic acid, atropic acid, cinnamic acid, isonicotinic acid, nicotinic acid, bicarbamic acid, 4,4'-dicyano-6,6'-binicotinic acid, 8-carbamoyloctanoic acid, 1,2,4-pentanetricarboxylic acid, 2-pyrrolecarboxylic acid, 1,2,4,6,7-naphthalenepentaacetic acid, malonaldehyde acid, 4-hydroxyphthalamic acid, 1-pyrazolecarboxylic acid, gallic acid or propanetricarboxylic acid, glycolic acid, gluconic acid, lactic acid, maleic acid, ascorbic acid, malic acid, tartaric acid, citric acid and mixtures thereof.

[0234] In a further, even more preferred embodiment, the method is characterized in that the agent (b) comprises acetic acid as sealing agent (b1).

[0235] Suitable acidifying agents also include methanesulfonic acid and / or 1-hydroxyethane-1,1-diphosphonic acid.

[0236] Within the group of said sealing agents (b1) in the form of acidifying agents, sulfuric acid and / or acetic acid have proven to be particularly suitable.

[0237] In the context of a further particularly preferred embodiment, the method is characterized in that the agent (b) comprises as sealing agent (b1) at least one acidifying agent selected from the group of sulfuric acid, acetic acid and mixtures thereof.

[0238] The agent (b) comprises an acidifying agent as sealing agent (b1) in a cosmetic carrier, preferably an aqueous cosmetic carrier.

[0239] The acidifying agent contained in agent (b) influences the pH of agent (b) and it has been found that an acidic pH value has a beneficial effect on the coloring performance and color fastness properties achievable in the present process.

[0240] For this reason, the agent (b) containing an acidifying agent as sealing agent (b1) preferably has a pH of 2.0 to 6.5, preferably 3.0 to 6.0, more preferably 4.0 to 6.0, very particularly preferably 4.5 to 5.5.

[0241] The measurement of pH may be carried out using conventional methods known in the prior art, such as measuring pH using a glass electrode via a combination electrode, or measuring pH via pH test paper.

[0242] In a further very particularly preferred embodiment, the method is characterized in that the agent (b) comprises an acidifying agent as sealing agent (b1) and has a pH of 2.0 to 6.5, preferably 3.0 to 6.0, more preferably 4.0 to 6.0 and very particularly preferably 4.5 to 5.5.

[0243] pH values ​​within the meaning of the present invention are pH values ​​measured at a temperature of 22°C.

[0244] <Other ingredients in agents (a) and (b)> The above agents (a) and (b) may further comprise one or more optional ingredients. However, it is essential for the present invention that at least one of the agents (a) and (b) further comprises at least one dyeing compound selected from the group consisting of pigments and / or direct dyes.

[0245] It may also be preferred that in addition to at least one organosilicon compound (a1) selected from the group of silanes having one, two or three silicon atoms and carboxymethylcellulose and / or its salts (a2), the agent (a) further comprises at least one dyeing compound selected from the group consisting of pigments and / or direct dyes.

[0246] Alternatively, it may be preferred that the agent (b) further comprises, in addition to the sealing agent (b1), at least one dyeing compound selected from the group consisting of pigments and / or direct dyes.

[0247] In an equally preferred embodiment of the method, agent (a) and agent (b) each further comprise at least one dyeing compound selected from the group consisting of pigments and / or direct dyes.

[0248] Irrespective of the agents (a) and / or (b), the use of pigments has proven very particularly preferred here.

[0249] In a further very particularly preferred embodiment, the method is characterized in that agent (a) and / or agent (b) further comprises at least one dyeing compound from the group of the pigments.

[0250] Pigments in the sense of the present invention are understood to mean dyeing compounds whose solubility in water at 25° C. is less than 0.5 g / L, preferably less than 0.1 g / L, and even more preferably less than 0.05 g / L. The solubility in water can be measured, for example, in the following way: 0.5 g of pigment are weighed into a beaker. A stirring bar is added. Then 1 liter of distilled water is added. The mixture is heated to 25° C. for 1 hour while stirring with a magnetic stirrer. If after this time undissolved components of the pigment are still visible in the mixture, the solubility of the pigment is less than 0.5 g / L. If the pigment-water mixture cannot be evaluated visually due to the high intensity of the possibly finely dispersed pigment, the mixture is filtered. If some undissolved pigment remains on the filter paper, the solubility of the pigment is less than 0.5 g / L.

[0251] Suitable pigments may be of inorganic and / or organic origin.

[0252] In a preferred embodiment, the method is characterized in that the agents (a) and (b) further comprise at least one dyeing compound from the group of the inorganic and / or organic pigments.

[0253] Preferred pigments are selected from synthetic or natural inorganic pigments. Naturally occurring inorganic pigments can be produced, for example, from chalk, ocher, umber, green earth, burnt sienna or graphite. In addition, black pigments such as black iron oxide, colored pigments such as ultramarine or red iron oxide, and fluorescent or phosphorescent pigments can be used as inorganic color pigments.

[0254] Particularly suitable are colored metal oxides, metal hydroxides and metal oxide hydrates, mixed-phase pigments, sulfur-containing silicates, silicates, metal sulfides, complex metal cyanides, metal sulfates, chromates and / or molybdates. Particularly preferred pigments are black iron oxide (CI 77499), yellow iron oxide (CI 77492), red and brown iron oxide (CI 77491), manganese violet (CI 77742), ultramarine (sodium aluminum sulfosilicate, CI 77007, Pigment Blue 29), chromium oxide hydrate (CI 77289), Prussian blue (ferric ferrocyanide, CI 77510) and / or carmine (cochineal).

[0255] Also particularly preferred pigments are colored pearlescent pigments. These are usually based on mica and may be coated with one or more metal oxides. Micas are phyllosilicates. The most important representatives of these silicates are muscovite, phlogopite, paragonite, biotite, lepidolite and margarite. To produce pearlescent pigments combined with metal oxides, mica, mainly muscovite or phlogopite, etc. are coated with metal oxides.

[0256] A preferred method is therefore characterised in that agent (a) and / or agent (b) further comprises at least one dyeing compound selected from the group of pigments selected from the group of coloured metal oxides, metal hydroxides, metal oxide hydrates, silicates, metal sulphides, complex metal cyanides, metal sulphates, bronze pigments and / or from coloured pigments based on natural or synthetic mica coated with at least one metal oxide and / or metal oxychloride.

[0257] A suitable pigment based on synthetic mica which is preferred is, for example, Timiron® SynWhite Satin (Merck).

[0258] In another preferred embodiment, the method is characterized in that the agent (a) and / or the agent (b) contain at least one dye compound selected from the group of pigments selected from the group consisting of titanium dioxide (CI 77891), black iron oxide (CI 77499), yellow iron oxide (CI 77492), red and / or brown iron oxide (CI 77491, CI 77499), manganese violet (CI 77742), ultramarine (sodium aluminum sulfosilicate, CI 77007, Pigment Blue 29), chromium oxide hydrate (CI 77289), chromium oxide (CI 77288) and / or Prussian blue (ferric ferrocyanide, CI 77510).

[0259] In yet another preferred embodiment of the method, agent (a) and / or agent (b) are characterized in that they comprise at least one dyeing compound from the group of inorganic pigments selected from the group consisting of black iron oxide (CI 77499), yellow iron oxide (CI 77492), red iron oxide (CI 77491) and mixtures thereof.

[0260] Yellow iron oxide (or iron oxide yellow) is the name for FeO(OH) and is listed in the Color Index under CI Pigment Yellow 42.

[0261] Red iron oxide (or iron oxide red) is the name for Fe2O3 and is listed in the Color Index under CI Pigment Red 101. Depending on the particle size, red iron oxide pigments can be adjusted from very yellowish (small particle size) to very bluish (coarse particles).

[0262] Black iron oxide (or iron oxide black) is listed in the Color Index under CI Pigment Black 11. Iron oxide black is a ferromagnetic material. Its chemical formula is usually given as Fe3O4, but it actually exists as a mixed crystal of Fe2O3 and FeO, with an inverse spinel structure. Additional black pigments can be obtained by doping with chromium, copper, or manganese.

[0263] Brown-black iron oxide (or iron oxide brown) usually does not denote a defined pigment, but a mixture of yellow, red and / or black iron oxides.

[0264] Iron oxide pigments usually have a particle size in the range of 2,000 to 4,000 nm. In some applications, especially cosmetic applications, it may be advantageous to use iron oxide pigments with significantly smaller particle sizes. Thus, hair dyes with iron oxide pigments having particle sizes in the range of 100 to 1,000 nm, more preferably 150 nm to 700 nm, show better durability and better gray hair coverage.

[0265] Thus, a method is preferred, wherein agent (a) and / or agent (b) further comprises a dyeing compound selected from the group consisting of pigments and / or direct dyes, wherein the dyeing compound comprises a pigment selected from the group consisting of iron oxide pigments.

[0266] Even more preferred is a method, wherein agent (a) and / or agent (b) further comprises a dyeing compound selected from the group from pigments and / or direct dyes, wherein the dyeing compound comprises a pigment selected from the group from iron oxide pigments, wherein the iron oxide pigment has a particle size in the range of 100 to 1,000 nm, more preferably 150 nm to 700 nm.

[0267] Other suitable pigments are based on borosilicates in the form of platelets coated with metal oxides. These are, for example, coated with tin oxide, iron oxide, silicon dioxide and / or titanium dioxide. Such borosilicate-based pigments are available, for example, under the names MIRAGE (Eckart) or Reflecks (BASF SE).

[0268] In a preferred embodiment, agent (a) is characterized in that it comprises at least one dye compound from the group of inorganic pigments selected from the group consisting of black iron oxide (CI 77499), yellow iron oxide (CI 77492), red iron oxide (CI 77491) and mixtures thereof.

[0269] Yellow iron oxide (or iron oxide yellow) is the name for FeO(OH) and is listed in the Color Index under CI Pigment Yellow 42.

[0270] Red iron oxide (or iron oxide red) is the name for Fe2O3 and is listed in the Color Index under CI Pigment Red 101. Depending on the particle size, red iron oxide pigments can be adjusted from very yellowish (small particle size) to very bluish (coarse particles).

[0271] Black iron oxide (or iron oxide black) is listed in the Color Index under CI Pigment Black 11. Iron oxide black is a ferromagnetic material. Its chemical formula is usually given as Fe3O4, but it actually exists as a mixed crystal of Fe2O3 and FeO, with an inverse spinel structure. Additional black pigments can be obtained by doping with chromium, copper, or manganese.

[0272] Brown-black iron oxide (or iron oxide brown) usually does not denote a defined pigment, but a mixture of yellow, red and / or black iron oxides.

[0273] Iron oxide pigments usually have a particle size in the range of 2,000 to 4,000 nm. In some applications, especially cosmetic applications, it may be advantageous to use iron oxide pigments with significantly smaller particle sizes. Thus, hair dyes with iron oxide pigments having particle sizes in the range of 100 to 1,000 nm, more preferably 150 nm to 700 nm, show better durability and better gray hair coverage.

[0274] For this reason, even more preferred is an agent (a) which further comprises a dyeing compound from the group of the pigments and / or direct dyes, where the dyeing compound comprises a pigment from the group of the iron oxide pigments, the iron oxide pigment having a particle diameter in the range from 100 to 1,000 nm, more preferably from 150 nm to 700 nm.

[0275] Examples of particularly suitable colored pigments are commercially available under the trade names Rona®, Colorona®, Xirona®, Dichrona® and Timiron® from Merck, Ariabel® and Unipure® from Sensient, Prestige® or SynCrystal from Eckart Cosmetic Colors, Flamenco®, Cellini®, Cloisonne®, Duocrome®, Gemtone®, Timica®, MultiReflections, Chione from BASF SE, and Sunshine® from Sunstar.

[0276] Very particularly preferred colour pigments having the trade name Colorona® are, for example: Colorona Copper, Merck, Mica, CI 77491 (iron oxide) Colorona Copper Fine, Merck, Mica, CI 77491 (Iron Oxide) Colorona Passion Orange, Merck, Mica, CI 77491 (Iron Oxide), Alumina Colorona Patina Silver, Merck, Mica, CI 77499 (Iron Oxides), CI 77891 (Titanium Dioxide) Colorona RY, Merck, CI 77891 (titanium dioxide), mica, CI 75470 (carmine) Colorona Oriental Beige, Merck, Mica, CI 77891 (Titanium Dioxide), CI 77491 (Iron Oxides) Colorona Dark Blue, Merck, Mica, Titanium Dioxide, Ferric Ferrocyanide Colorona Chameleon, Merck, CI 77491 (iron oxide), mica Colorona Aborigine Amber, Merck, Mica, CI 77499 (Iron Oxides), CI 77891 (Titanium Dioxide) Colorona Blackstar Blue, Merck, CI 77499 (iron oxide), mica Colorona Patagonian Purple, Merck, Mica, CI 77491 (Iron Oxides), CI 77891 (Titanium Dioxide), CI 77510 (Ferric Ferrocyanide) Colorona Red Brown, Merck, Mica, CI 77491 (Iron Oxides), CI 77891 (Titanium Dioxide) Colorona Russet, Merck, CI 77491 (Titanium Dioxide), Mica, CI 77891 (Iron Oxides) Colorona Imperial Red, Merck, Mica, Titanium Dioxide (CI 77891), D&C RED NO. 30 (CI 73360) Colorona Majestic Green, Merck, CI 77891 (titanium dioxide), mica, CI 77288 (chromium oxide green) Colorona Light Blue, Merck, Mica, Titanium Dioxide (CI 77891), Ferric Ferrocyanide (CI 77510) Colorona Red Gold, Merck, Mica, CI 77891 (Titanium Dioxide), CI 77491 (Iron Oxides) Colorona Gold Plus MP 25, Merck, Mica, Titanium Dioxide (CI 77891), Iron Oxide (CI 77491) Colorona Carmine Red, Merck, Mica, Titanium Dioxide, Carmine Colorona Blackstar Green, Merck, Mica, CI 77499 (iron oxide) Colorona Bordeaux, Merck, Mica, CI 77491 (iron oxide) Colorona Bronze, Merck, Mica, CI 77491 (iron oxide) Colorona Bronze Fine, Merck, Mica, CI 77491 (iron oxide) Colorona Fine Gold MP 20, Merck, Mica, CI 77891 (Titanium Dioxide), CI 77491 (Iron Oxides) Colorona Sienna Fine, Merck, CI 77491 (iron oxide), mica Colorona Sienna, Merck, Mica, CI 77491 (iron oxide) Colorona Precious Gold, Merck, Mica, CI 77891 (Titanium Dioxide), Silica, CI 77491 (Iron Oxides), Tin Oxide Colorona Sun Gold Sparkle MP 29, Merck, Mica, Titanium Dioxide, Iron Oxide, Mica, CI 77891, CI 77491 (EU) Colorona Mica Black, Merck, CI 77499 (iron oxide), Mica, CI 77891 (titanium dioxide) Colorona Bright Gold, Merck, Mica, CI 77891 (Titanium Dioxide), CI 77491 (Iron Oxides) Colorona Blackstar Gold, Merck, Mica, CI 77499 (Iron Oxide) Colorona® SynCopper, Merck, synthetic fluorphlogopite (and) iron oxide Colorona® SynBronze, Merck, a synthetic fluorophlogopite (and) iron oxide.

[0277] Further particularly preferred pigments under the trade name Xirona® are, for example: Xirona® Golden Sky, Merck, Silica, CI 77891 (Titanium Dioxide), Tin Oxide Xirona® Caribbean Blue, Merck, Mica, CI 77891 (Titanium Dioxide), Silica, Tin Oxide Xirona® Kiwi Rose, Merck, Silica, CI 77891 (Titanium Dioxide), Tin Oxide Xirona® Magic Mauve, Merck, Silica, CI 77891 (Titanium Dioxide), Tin Oxide Xirona® Le Rouge, Merck, iron oxide (and) silica.

[0278] In addition, particularly preferred pigments under the trade name Unipure® are, for example: Unipure Red LC 381 EM, Sensient CI 77491 (iron oxide), silica Unipure Black LC 989 EM, Sensient, CI 77499 (Iron Oxide), Silica Unipure Yellow LC 182 EM,Sensient,CI 77492(Iron Oxide),Silica.

[0279] Also particularly preferred pigments under the trade name Flamenco® are, for example: Flamenco® Summit Turquoise T30D, BASF, titanium dioxide (and) mica Flamenco® Super Violet 530Z, BASF, mica (and) titanium dioxide.

[0280] In the context of another embodiment, agent (a) and / or agent (b) in the method may comprise one or more dyeing compounds selected from the group of organic pigments.

[0281] The organic pigments are correspondingly insoluble organic dyes or colour lacquers which may be selected, for example, from the group of nitroso, nitro-azo, xanthene, anthraquinone, isoindolinone, isoindoline, quinacridone, perinone, perylene, diketopyrrolopyrrole, indigo, thioindigo, dioxazine and / or triarylmethane compounds.

[0282] Particularly suitable organic pigments include, for example, carmine, quinacridone, phthalocyanine, sorghum, blue pigments with a color index of CI 42090, CI 69800, CI 69825, CI 73000, CI 74100, CI 74160, yellow pigments with a color index of CI 11680, CI 11710, CI 15985, CI 19140, CI 20040, CI 21100, CI 21108, CI 47000, CI 47005, green pigments with a color index of CI 61565, CI 61570, CI 74260, orange pigments with a color index of CI 11725, CI 15510, CI 45370, CI 71105, and tallow pigments with a color index of CI 12085, CI 13000, CI 14000, CI 15000, CI 15000. 12120, CI 12370, CI 12420, CI 12490, CI 14700, CI 15525, CI 15580, CI 15620, CI 15630, CI 15800, CI 15850, CI 15865, CI 15880, CI 17200, CI Mention may be made of the red pigments 26100, CI 45380, CI 45410, CI 58000, CI 73360, CI 73915 and / or CI 75470.

[0283] In another particularly preferred embodiment, the method comprises the step of selecting an agent (a) and / or an agent (b) selected from the group consisting of carmine, quinacridone, phthalocyanine, sorghum, blue pigments with a color index of CI 42090, CI 69800, CI 69825, CI 73000, CI 74100, or CI 74160, yellow pigments with a color index of CI 11680, CI 11710, CI 15985, CI 19140, CI 20040, CI 21100, CI 21108, CI 47000, or CI 47005, green pigments with a color index of CI 61565, CI 61570, or CI 74260, green pigments with a color index of CI 11725, CI 15510, CI 45370, or CI 45370. 71105, and at least one dyeing compound from the group of organic pigments selected from the group consisting of red pigments with a color index of CI 12085, CI 12120, CI 12370, CI 12420, CI 12490, CI 14700, CI 15525, CI 15580, CI 15620, CI 15630, CI 15800, CI 15850, CI 15865, CI 15880, CI 17200, CI 26100, CI 45380, CI 45410, CI 58000, CI 73360, CI 73915, or CI 75470, and mixtures thereof.

[0284] The organic pigment may be a color lacquer. In the sense of the present invention, the term "color lacquer" is understood to mean a particle that contains a layer of absorbed dye, and the unit consisting of particle and dye is insoluble under the above conditions. The particle may be, for example, an inorganic material, which may be aluminum, silica, calcium borosilicate, calcium aluminum borosilicate or aluminum.

[0285] For example, alizarin color lacquer can be used as color lacquer.

[0286] In the context of another embodiment of the method, agent (a) and / or agent (b) may comprise one or more dyeing compounds from the group of the organic pigments.

[0287] In another particularly preferred embodiment, the method comprises the step of selecting an agent (a) and / or an agent (b) selected from the group consisting of carmine, quinacridone, phthalocyanine, sorghum, blue pigments with a color index of CI 42090, CI 69800, CI 69825, CI 73000, CI 74100, or CI 74160, yellow pigments with a color index of CI 11680, CI 11710, CI 15985, CI 19140, CI 20040, CI 21100, CI 21108, CI 47000, or CI 47005, green pigments with a color index of CI 61565, CI 61570, or CI 74260, green pigments with a color index of CI 11725, CI 15510, CI 45370, or CI 45370. 71105, and at least one dyeing compound from the group of organic pigments selected from the group of red pigments with a color index of CI 12085, CI 12120, CI 12370, CI 12420, CI 12490, CI 14700, CI 15525, CI 15580, CI 15620, CI 15630, CI 15800, CI 15850, CI 15865, CI 15880, CI 17200, CI 26100, CI 45380, CI 45410, CI 58000, CI 73360, CI 73915 and / or CI 75470.

[0288] In particular, methods are preferred in which agent (a) and / or agent (b) further comprises a dyeing compound from the group of the pigments and / or direct dyes, said dyeing compound comprising a pigment from the group of the organic pigments.

[0289] Even more preferred is a method, wherein agent (a) and / or agent (b) further comprises a dyeing compound from the group of the pigments and / or direct dyes, which dyeing compound comprises at least one pigment from the group of the organic pigments, the organic pigment having a particle size in the range of 100 to 1000 nm, more preferably 150 nm to 700 nm.

[0290] Suitable dye compounds selected from the group of pigments are also inorganic and / or organic pigments which have been modified with a polymer, which makes it possible, for example, to increase the affinity of the pigment for the respective material of at least one layer.

[0291] In agent (a) and / or agent (b) it is also possible to use what are referred to as metallic effect pigments.

[0292] In particular, the metallic effect pigments may comprise pigments based on lamellar substrate platelets, pigments based on lenticular substrate platelets and / or pigments based on substrate platelets, including vacuum metallized pigments (VMP). In these metallic effect pigments, the substrate platelet comprises a metal, preferably aluminum, or an alloy. The metallic effect pigments based on metallic substrate platelets preferably have a coating which functions inter alia as a protective layer.

[0293] Suitable metallic effect pigments include, for example, pigments such as Alegrace® Marvelous, Alegrace® Gorgeous, or Alegrace® Aurous (Schlenk Metallic Pigments).

[0294] Also suitable metallic effect pigments are the SILVERDREAM series of aluminium-based pigments and the VISIONAIRE series of pigments based on aluminium or copper / zinc-containing metal alloys (Eckart).

[0295] Due to the excellent light and heat resistance, the use of the abovementioned pigments in agent (a) and / or agent (b) is very particularly preferred. Furthermore, it is also preferred if the pigments used have a certain particle size. This particle size leads, on the one hand, to a homogeneous distribution of the pigment in the polymer film formed and, on the other hand, to the avoidance of a rough feeling on the hair or skin after application of the cosmetic agent. Thus, according to the invention, at least one pigment has an average particle size D of 1 to 50 μm, preferably 5 to 45 μm, preferably 10 to 40 μm, in particular 14 to 30 μm. 50 It is advantageous when the average particle size D 50 can be measured, for example, using dynamic light scattering (DLS).

[0296] In a further preferred embodiment, the method is characterized in that agent (a) further comprises one or more dyeing compounds in the form of pigments in a total amount of 0.01 to 10% by weight, preferably 0.1 to 8% by weight, more preferably 0.2 to 6% by weight, most preferably 0.5 to 4.5% by weight, relative to the total weight of agent (a).

[0297] In a further, likewise preferred embodiment, the method is characterized in that agent (b) further comprises one or more dyeing compounds in the form of pigments in a total amount of 0.01 to 10% by weight, preferably 0.1 to 8% by weight, more preferably 0.2 to 6% by weight and most particularly preferably 0.5 to 4.5% by weight, relative to the total weight of agent (b).

[0298] As dyeing compounds, agent (a) and / or agent (b) used in the method may comprise one or more direct dyes. Direct dyes are dyes that are directly deposited on the hair and do not require an oxidation process to form color. Direct dyes are usually nitrophenylenediamines, nitroaminophenols, azo dyes, anthraquinones, triarylmethane dyes or indophenols.

[0299] Direct dyes in the sense of the present invention have a solubility in water (760 mmHg) at 25° C. of greater than 0.5 g / L and are therefore not considered pigments. Preferably, direct dyes in the sense of the present invention have a solubility in water (760 mmHg) at 25° C. of greater than 1 g / L.

[0300] Direct dyes can be classified into anionic direct dyes, cationic direct dyes and non-ionic direct dyes.

[0301] In a further preferred embodiment, the method is characterized in that agent (a) and / or agent (b) further comprises, as dyeing compound, at least one anionic, cationic and / or nonionic direct dye.

[0302] In a further preferred embodiment, the method is characterized in that agent (a) and / or agent (b) further comprises at least one dyeing compound from the group of anionic, nonionic and / or cationic direct dyes.

[0303] Suitable cationic direct dyes are, for example, Basic Blue 7, Basic Blue 26, Basic Violet 2, Basic Violet 14, Basic Yellow 57, Basic Red 76, Basic Blue 16, Basic Blue 347 (Cationic Blue 347 / Dystar), HC Blue No. 16, Basic Blue 99, Basic Brown 16, Basic Brown 17, Basic Yellow 57, Basic Yellow 87, Basic Orange 31, Basic Red 51 Basic Red 76.

[0304] In particular, nonionic direct dyes that can be used are, for example, nonionic nitro and quinone dyes and natural azo dyes. Suitable nonionic direct dyes are compounds known under the following international or trade names: HC Yellow 2, HC Yellow 4, HC Yellow 5, HC Yellow 6, HC Yellow 12, HC Orange 1, Disperse Orange 3, HC Red 1, HC Red 3, HC Red 10, HC Red 11, HC Red 13, HC Red BN, HC Blue 2, HC Blue 11, HC Blue 12, Disperse Blue 3, HC Violet 1, Disperse Violet 1, Disperse Violet 4, Disperse Black. 9, and 1,4-diamino-2-nitrobenzene, 2-amino-4-nitrophenol, 1,4-bis-(2-hydroxyethyl)-amino-2-nitrobenzene, 3-nitro-4-(2-hydroxyethyl)-aminophenol, 2-(2-hydroxyethyl)amino-4,6-dinitrophenol, 4-[(2-hydroxyethyl)amino]-3-nitro-1-methylbenzene, 1-amino-4-(2-hydroxyethyl)-amino-5-chloro-2-nitrobe benzene, 4-amino-3-nitrophenol, 1-(2'-ureidoethyl)amino-4-nitrobenzene, 2-[(4-amino-2-nitrophenyl)amino]benzoic acid, 6-nitro-1,2,3,4-tetrahydroquinoxaline, 2-hydroxy-1,4-naphthoquinone, picramic acid and their salts, 2-amino-6-chloro-4-nitrophenol, 4-ethylamino-3-nitrobenzoic acid and 2-chloro-6-ethylamino-4-nitrophenol.

[0305] In the course of the research which led to the present invention, it was found that colourations having particularly high colour strength can be produced, in particular when using agents (a) and / or (b) which comprise at least one anionic direct dye.

[0306] In an explicitly very particularly preferred embodiment, the method is therefore characterized in that agent (a) and / or agent (b) further comprises at least one anionic direct dye as dye compound.

[0307] Anionic direct dyes are also called acid dyes. By acid dyes we mean direct dyes that have at least one carboxylic acid group (-COOH) and / or at least one sulfonic acid group (-SO3H). Depending on the pH, the protonated forms of the carboxylic or sulfonic acid groups (-COOH, -SO3H) can be converted into their deprotonated forms (-COO - , -SO3 - ) in equilibrium with the protonated form. With decreasing pH, the proportion of the protonated form increases. When direct dyes are used in the form of their salts, the carboxylic or sulfonic acid groups are present in deprotonated form and are neutralized with the corresponding stoichiometrically equivalent cation to maintain electrical neutrality. Acid dyes may also be used in the form of their sodium salts and / or their potassium salts.

[0308] Acid dyes in the sense of the present invention have a solubility in water (760 mmHg) at 25° C. of more than 0.5 g / L and are therefore not considered pigments. Preferably, acid dyes in the sense of the present invention have a solubility in water (760 mmHg) at 25° C. of more than 1 g / L.

[0309] The alkaline earth (e.g. calcium and magnesium) or aluminium salts of acid dyes often have lower solubilities than the corresponding alkali salts. If the solubility of these salts is less than 0.5 g / L (25 °C, 760 mmHg), they are not included in the definition of direct dyes.

[0310] An essential feature of acid dyes is the ability to form an anionic charge, the carboxylic or sulfonic acid groups which carry this are usually attached to various chromophore systems, such as, for example, the structures of nitrophenylenediamines, nitroaminophenols, azo dyes, anthraquinone dyes, triarylmethane dyes, xanthan dyes, rhodamine dyes, oxazine dyes and / or indophenol dyes.

[0311] Thus, in the context of one embodiment, a method for dyeing keratin materials is preferred, characterized in that agent (a) and / or agent (b) further comprises, as dyeing compound, at least one anionic direct dye selected from the group of nitrophenylenediamines, nitroaminophenols, azo dyes, anthraquinone dyes, triarylmethane dyes, xanthan dyes, rhodamine dyes, oxazine dyes and / or indophenol dyes, said dyes in the above group each comprising at least one carboxylic acid group (-COOH), sodium carboxylate group (-COONa), potassium carboxylate group (-COOK), sulfonic acid group (-SOH), sodium sulfonate group (-SONa) and / or potassium sulfonate group (-SOK).

[0312] For example, one or more compounds from the following groups may be selected as particularly suitable acid dyes: Acid Yellow 1 (D&C Yellow 7, Citronin A, Ext. D&C Yellow No. 7, Japan Yellow 403, CI 10316, COLIPA n° B001), Acid Yellow 3 (COLIPA n°: C54, D&C Yellow N° 10, Quinoline Yellow, E104, Food Yellow 13), Acid Yellow 9 (CI 13015), Acid Yellow 17 (CI 18965), Acid Yellow 23 (COLIPA n° C 29, Covacap Jaune W 1100 (LCW), Sicovit Tartrazine 85 E 102 (BASF), Tartrazine, Food Yellow 4, Japan Yellow 4, FD&C Yellow No. 5), Acid Yellow 36 (CI 13065), Acid Yellow 121(CI 18690), Acid Orange 6(CI 14270), Acid Orange 7(2-Naphthol orange, Orange II, CI 15510, D&C Orange 4, COLIPA n°C015), Acid Orange 10(CI 16230;Orange G sodium salt), Acid Orange 11(CI 45370), Acid Orange 15(CI 50120), Acid Orange 20(CI 14600), Acid Orange 24(BROWN 1;CI 20170;KATSU201;Sodium free;Brown No.201;RESORCIN BROWN;ACID ORANGE 24;Japan Brown 201;D & C Brown No.1), Acid Red 14(CI 14720), Acid Red 18(E124, Red 18; CI 16255), Acid Red 27(E 123, CI 16185, C-Rot 46, Echtrot D, FD&C Red No.2、Food Red 9、Naphtholrot S)、Acid Red 33(Red 33、Fuchsia Red、D&C Red 33、CI 17200)、Acid Red 35(CI C.I.18065)、Acid Red 51(CI 45430、Pyrosin B、Tetraiodfluorescein、Eosin J、Iodeosin)、Acid Red 52(CI 45100、Food Red 106、Solar Rhodamine B、Acid Rhodamine B、Red n°106 Pontacyl Brilliant Pink)、Acid Red 73(CI 27290)、Acid Red 87(Eosin、CI 45380)、Acid Red 92(COLIPA n°C 53、CI 45410)、Acid Red 95(CI 45425、Erythrosine,Simacid Erythrosine Y)、Acid Red 184(CI 15685)、Acid Red 195、Acid Violet 43(Jarol Violet 43、Ext. D&C Violet no.2、CI 60730、COLIPA n°C063)、Acid Violet 49(CI 42640)、Acid Violet 50(CI 50325)、Acid Blue 1(Patent Blue、CI 42045)、Acid Blue、(Acid Blue 42051)、Acid Blue 7(CI 42080)、Acid Blue 104(CI 42735)、Acid Blue 9(E 133、Patentblau AE、Amidoblau AE、Herioglaucin A、ood、2A Blue 420) 62(CI 62045)、Acid Blue 74(E 132、CI 73015)、Acid Blue 80(CI 61585)、Acid Green 3(CI 42085、Foodgreen 1)、Acid Green、405(CId) 42100)、Acid Green 22(CI 42170)、 Acid Green 25(CI 61570、Japan Green 201、D&C Green No. 5)、Acid Green 50(Brilliant Acid Green BS、CI Green 440BS、Brilliant、CI 440ABS、 142)、Acid Black 1(Black no. 401、Naphthalene Black 10B、Starch Black 10B、CI 20 470、COLIPA no.B15)、Acid Black 52(CI 15711)、270Food Yellow、27Food Yellow、 5、D&C Yellow 8、D&C Green 5、D&C Orange 10、D&C Orange 11、D&C Red 21、D&C Red 27、D&C Red 33、D&C Purple 2およ、び / お.

[0313] For example, the water solubility of an anionic direct dye can be measured in the following way: Add 0.1 g of anionic direct dye to a beaker. Add a stir bar. Then add 100 mL of water. Heat the mixture to 25°C while stirring on a magnetic stirrer. Stir the mixture for 60 minutes. Then visually evaluate the aqueous mixture. If undissolved residues are still present, increase the amount of water, for example in 10 mL increments. Add water until the amount of dye used is completely dissolved. If the dye-water mixture cannot be visually evaluated due to high dye strength, filter the mixture. If some undissolved dye remains on the filter paper, repeat the solubility test with more water. If 0.1 g of anionic direct dye dissolves in 100 mL of water at 25°C, the solubility of the dye is 1 g / L.

[0314] Acid Yellow 1 has the name 8-hydroxy-5,7-dinitro-2-naphthalenesulfonic acid, disodium salt, and has a solubility in water (25° C.) of at least 40 g / L. Acid Yellow 3 is a mixture of the mono- and disulfonic acid sodium salts of 2-(2-quinolyl)-1H-indene-1,3(2H)-dione and has a solubility in water of 20 g / L at 25° C. Acid Yellow 9 is the disodium salt of 8-hydroxy-5,7-dinitro-2-naphthalenesulfonic acid, whose solubility in water is greater than 40 g / L (25°C). Acid Yellow 23 is the trisodium salt of 4,5-dihydro-5-oxo-1-(4-sulfophenyl)-4-((4-sulfophenyl)azo)-1H-pyrazole-3-carboxylic acid and is readily soluble in water at 25°C. Acid Orange 7 is the sodium salt of 4-[(2-hydroxy-1-naphthyl)azo]benzenesulfonate. Its solubility in water is greater than 7 g / L at 25 °C. Acid Red 18 is the trisodium salt of 7-hydroxy-8-[(E)-(4-sulfonato-1-naphthyl)-diazenyl)]-1,3-naphthalenedisulfonate and has very high water solubility of greater than 20% by weight. Acid Red 33 is the disodium salt of 5-amino-4-hydroxy-3-(phenylazo)-naphthalene-2,7-disulfonate and has a solubility in water of 2.5 g / L (25° C.). Acid Red 92 is the disodium salt of 3,4,5,6-tetrachloro-2-(1,4,5,8-tetrabromo-6-hydroxy-3-oxanthene-9-yl)benzoic acid, whose solubility in water is greater than 10 g / L (25° C.). Acid Blue 9 is the disodium salt of 2-({4-[N-ethyl(3-sulfonatobenzyl]amino]phenyl}{4-[(N-ethyl(3-sulfonatobenzyl)imino]-2,5-cyclohexadien-1-ylidene}methyl)-benzenesulfonate and has a solubility in water greater than 20% by weight (25° C.).

[0315] A very particularly preferred method is therefore characterized in that agent (a) and / or agent (b) further comprises at least one dyeing compound selected from the group of anionic direct dyes selected from the following group: Acid Yellow 1, Acid Yellow 3, Acid Yellow 9, Acid Yellow 17, Acid Yellow 23, Acid Yellow 36, Acid Yellow 121, Acid Orange 6, Acid Orange 7, Acid Orange 10, Acid Orange 11, Acid Orange 15, Acid Orange 20, Acid Orange 24, Acid Red 14, Acid Red, Acid Red 27, Acid Red 33, Acid Red 35, Acid Red 51, Acid Red 52, Acid Red 73, Acid Red 87, Acid Red 92, Acid Red 95, Acid Red 184, Acid Red 195, Acid Violet 43, Acid Violet 49, Acid Violet 50, Acid Blue 1, Acid Blue 3, Acid Blue 7, Acid Blue 104, Acid Blue 9, Acid Blue 62, Acid Blue 74, Acid Blue 80, Acid Green 3, Acid Green 5, Acid Green 9, Acid Green 22, Acid Green 25, Acid Green 50, Acid Black 1, Acid Black 52, Food Yellow 8, Food Blue 5, D&C Yellow 8, D&C Green 5, D&C Orange 10, D&C Orange 11, D&C Red 21, D&C Red 27, D&C Red 33, D&C Violet 2 and / or D&C Brown 1.

[0316] The direct dyes, in particular the anionic direct dyes, can be used in different amounts in agent (a) and / or agent (b), depending on the desired coloring strength. Particularly good results have been obtained when agent (a) and / or agent (b) contain one or more direct dyes as dyeing compounds in a total amount of 0.01 to 10% by weight, preferably 0.1 to 8% by weight, more preferably 0.2 to 6% by weight and most particularly preferably 0.5 to 4.5% by weight, in each case relative to its total weight.

[0317] In a further preferred embodiment, the method is characterized in that agent (a) and / or agent (b) further comprises one or more direct dyes as dyeing compounds in a total amount of 0.01 to 10% by weight, preferably 0.1 to 8% by weight, more preferably 0.2 to 6% by weight and most particularly preferably 0.5 to 4.5% by weight, relative to the total weight of agent (a) and / or agent (b).

[0318] Below, preferred embodiments of the method relating to the staining compounds are disclosed.

[0319] 1. A method for dyeing keratinous materials, in particular human hair, comprising the steps of: applying an agent (a) to the keratinous material, where the agent (a) comprises: (a1) at least one organosilicon compound from the group of silanes containing one, two or three silicon atoms; (a2) at least one first polyethylene glycol having an average molecular weight of 200 to 600 g / mol, and (a3) at least one second polyethylene glycol having an average molecular weight of 1,000 to 35,000 g / mol, and (a4) at least one dyeing compound comprising at least one inorganic pigment selected from the group consisting of colored metal oxides, metal hydroxides, metal oxide hydrates, silicates, metal sulfides, complex metal cyanides, metal sulfates, bronze pigments, and mixtures thereof; applying an agent (b) to the keratinous material, where agent (b) comprises: (b1) at least one sealant;

[0320] 2. A method for dyeing keratinous materials, in particular human hair, comprising the steps of: applying an agent (a) to the keratinous material, where the agent (a) comprises: (a1) at least one organosilicon compound from the group of silanes containing one, two or three silicon atoms; (a2) at least one first polyethylene glycol having an average molecular weight of 200 to 600 g / mol, and (a3) at least one second polyethylene glycol having an average molecular weight of 1,000 to 35,000 g / mol, and (a4) at least one dyeing compound comprising at least one inorganic pigment selected from the group of colored metal oxides, metal hydroxides, metal oxide hydrates, silicates, metal sulfides, complex metal cyanides, metal sulfates, bronze pigments and mixtures thereof, and at least one pigment selected from the group consisting of pigments based on lamellar metal substrate platelets, pigments based on lenticular metal substrate platelets, pigments based on metal substrate platelets including vacuum metallized pigments (VMP), and mixtures thereof; applying an agent (b) to the keratinous material, where agent (b) comprises: (b1) at least one sealant;

[0321] 3. A method for dyeing keratinous materials, in particular human hair, comprising the steps of: applying an agent (a) to the keratinous material, where the agent (a) comprises: (a1) at least one organosilicon compound from the group of silanes containing one, two or three silicon atoms; (a2) at least one first polyethylene glycol having an average molecular weight of 200 to 600 g / mol, and (a3) at least one second polyethylene glycol having an average molecular weight of 1,000 to 35,000 g / mol; (a4) at least one dyeing compound comprising at least one inorganic pigment selected from the group of colored metal oxides, metal hydroxides, metal oxide hydrates, silicates, metal sulfides, complex metal cyanides, metal sulfates, bronze pigments, and mixtures thereof, and at least one pigment comprising α) a substrate platelet comprising mica, and β) a coating comprising at least one first metal oxide (hydrate) layer comprising TiO2, SnO2 and / or iron oxide, applying an agent (b) to the keratinous material, where agent (b) comprises: (b1) at least one sealant;

[0322] 4. A method for dyeing keratinous materials, in particular human hair, comprising the steps of: applying an agent (a) to the keratinous material, where the agent (a) comprises: (a1) at least one organosilicon compound from the group of silanes containing one, two or three silicon atoms; (a2) at least one first polyethylene glycol having an average molecular weight of 200 to 600 g / mol, and (a3) at least one second polyethylene glycol having an average molecular weight of 1,000 to 35,000 g / mol; (a4) at least one dye compound comprising at least one inorganic pigment selected from the group consisting of colored metal oxides, metal hydroxides, metal oxide hydrates, silicates, metal sulfides, complex metal cyanides, metal sulfates, bronze pigments, and mixtures thereof; applying an agent (b) to the keratinous material, where agent (b) comprises: (b1) at least one sealant comprising a film-forming polymer; and (b2) at least one dye compound comprising at least one pigment selected from the group consisting of pigments based on lamellar metal substrate platelets, pigments based on lenticular metal substrate platelets, pigments based on metal substrate platelets including vacuum metallized pigments (VMPs), and mixtures thereof.

[0323] 5. A method for dyeing keratinous materials, in particular human hair, comprising the steps of: applying an agent (a) to the keratinous material, where the agent (a) comprises: (a1) at least one organosilicon compound from the group of silanes containing one, two or three silicon atoms; (a2) at least one first polyethylene glycol having an average molecular weight of 200 to 600 g / mol, and (a3) at least one second polyethylene glycol having an average molecular weight of 1,000 to 35,000 g / mol; (a4) at least one dyeing compound comprising at least one inorganic pigment selected from the group consisting of colored metal oxides, metal hydroxides, metal oxide hydrates, silicates, metal sulfides, complex metal cyanides, metal sulfates, bronze pigments, and mixtures thereof; applying an agent (b) to the keratinous material, where agent (b) comprises: (b1) at least one sealant comprising a film-forming polymer; and (b2) at least one dye compound comprising α) a substrate platelet comprising mica, and β) a pigment comprising a coating comprising at least one first metal oxide (hydrate) layer comprising TiO2, SnO2 and / or iron oxide.

[0324] 6. A method for dyeing keratinous materials, in particular human hair, comprising the steps of: applying an agent (a) to the keratinous material, where the agent (a) comprises: (a1) at least one organosilicon compound from the group of silanes containing one, two or three silicon atoms; (a2) at least one first polyethylene glycol having an average molecular weight of 200 to 600 g / mol, and (a3) at least one second polyethylene glycol having an average molecular weight of 1,000 to 35,000 g / mol; (a4) at least one dye compound comprising at least one inorganic pigment selected from the group consisting of colored metal oxides, metal hydroxides, metal oxide hydrates, silicates, metal sulfides, complex metal cyanides, metal sulfates, bronze pigments, and mixtures thereof; applying an agent (b) to the keratinous material, where agent (b) comprises: (b1) at least one sealant comprising a film-forming polymer; and (b2) at least one dye compound comprising α) a substrate platelet comprising borosilicate glass, and β) a pigment comprising a coating comprising at least one first metal oxide (hydrate) layer comprising TiO2, SnO2, SiO2 and / or iron oxide.

[0325] 7. A method for dyeing keratinous materials, in particular human hair, comprising the steps of: applying an agent (a) to the keratinous material, where the agent (a) comprises: (a1) at least one organosilicon compound from the group of silanes containing one, two or three silicon atoms; (a2) at least one first polyethylene glycol having an average molecular weight of 200 to 600 g / mol, and (a3) at least one second polyethylene glycol having an average molecular weight of 1,000 to 35,000 g / mol, and (a4) Carmine, quinacridone, phthalocyanine, sorghum, blue pigments with color indexes CI 42090, CI 69800, CI 69825, CI 73000, CI 74100, CI 74160, yellow pigments with color indexes CI 11680, CI 11710, CI 15985, CI 19140, CI 20040, CI 21100, CI 21108, CI 47000, CI 47005, green pigments with color indexes CI 61565, CI 61570, CI 74260, orange pigments with color indexes CI 11725, CI 15510, CI 45370, CI 71105, and orange pigments with color indexes CI 12085, CI 12120, CI at least one dyeing compound comprising at least one organic pigment selected from the group consisting of red pigments of CI 12370, CI 12420, CI 12490, CI 14700, CI 15525, CI 15580, CI 15620, CI 15630, CI 15800, CI 15850, CI 15865, CI 15880, CI 17200, CI 26100, CI 45380, CI 45410, CI 58000, CI 73360, CI 73915, CI 75470 and mixtures thereof; applying an agent (b) to the keratinous material, where agent (b) comprises: (b1) at least one sealant;

[0326] 8. A method for dyeing keratinous materials, in particular human hair, comprising the steps of: applying an agent (a) to the keratinous material, where the agent (a) comprises: (a1) at least one organosilicon compound from the group of silanes containing one, two or three silicon atoms; (a2) at least one first polyethylene glycol having an average molecular weight of 200 to 600 g / mol, and (a3) at least one second polyethylene glycol having an average molecular weight of 1,000 to 35,000 g / mol, and (a4) Carmine, quinacridone, phthalocyanine, sorghum, blue pigments with color indexes CI 42090, CI 69800, CI 69825, CI 73000, CI 74100, CI 74160, yellow pigments with color indexes CI 11680, CI 11710, CI 15985, CI 19140, CI 20040, CI 21100, CI 21108, CI 47000, CI 47005, green pigments with color indexes CI 61565, CI 61570, CI 74260, orange pigments with color indexes CI 11725, CI 15510, CI 45370, CI 71105, and orange pigments with color indexes CI 12085, CI 12120, CI at least one dyeing compound comprising at least one organic pigment selected from the group consisting of red pigments of CI 12370, CI 12420, CI 12490, CI 14700, CI 15525, CI 15580, CI 15620, CI 15630, CI 15800, CI 15850, CI 15865, CI 15880, CI 17200, CI 26100, CI 45380, CI 45410, CI 58000, CI 73360, CI 73915, CI 75470, and mixtures thereof, and at least one pigment selected from the group consisting of pigments based on lamellar metal substrate platelets, pigments based on lenticular metal substrate platelets, pigments based on metal substrate platelets including vacuum metallized pigments (VMP), and mixtures thereof; applying an agent (b) to the keratinous material, where agent (b) comprises: (b1) at least one sealant;

[0327] 9. A method for dyeing keratinous materials, in particular human hair, comprising the steps of: applying an agent (a) to the keratinous material, where the agent (a) comprises: (a1) at least one organosilicon compound from the group of silanes containing one, two or three silicon atoms; (a2) at least one first polyethylene glycol having an average molecular weight of 200 to 600 g / mol, and (a3) at least one second polyethylene glycol having an average molecular weight of 1,000 to 35,000 g / mol, and (a4) Carmine, quinacridone, phthalocyanine, sorghum, blue pigments with color indexes CI 42090, CI 69800, CI 69825, CI 73000, CI 74100, CI 74160, yellow pigments with color indexes CI 11680, CI 11710, CI 15985, CI 19140, CI 20040, CI 21100, CI 21108, CI 47000, CI 47005, green pigments with color indexes CI 61565, CI 61570, CI 74260, orange pigments with color indexes CI 11725, CI 15510, CI 45370, CI 71105, and orange pigments with color indexes CI 12085, CI 12120, CI at least one organic pigment selected from the group consisting of red pigments of CI 12370, CI 12420, CI 12490, CI 14700, CI 15525, CI 15580, CI 15620, CI 15630, CI 15800, CI 15850, CI 15865, CI 15880, CI 17200, CI 26100, CI 45380, CI 45410, CI 58000, CI 73360, CI 73915, CI 75470 and mixtures thereof, and at least one dyeing compound comprising at least one pigment comprising α) a substrate platelet comprising mica, and β) a coating comprising at least one first metal oxide (hydrate) layer comprising TiO2, SnO2 and / or iron oxide, applying an agent (b) to the keratinous material, where agent (b) comprises: (b1) at least one sealant;

[0328] 10. A method for dyeing keratinous materials, in particular human hair, comprising the steps of: applying an agent (a) to the keratinous material, where the agent (a) comprises: (a1) at least one organosilicon compound from the group of silanes containing one, two or three silicon atoms; (a2) at least one first polyethylene glycol having an average molecular weight of 200 to 600 g / mol, and (a3) at least one second polyethylene glycol having an average molecular weight of 1,000 to 35,000 g / mol, and (a4) Carmine, quinacridone, phthalocyanine, sorghum, blue pigments with color indexes CI 42090, CI 69800, CI 69825, CI 73000, CI 74100, CI 74160, yellow pigments with color indexes CI 11680, CI 11710, CI 15985, CI 19140, CI 20040, CI 21100, CI 21108, CI 47000, CI 47005, green pigments with color indexes CI 61565, CI 61570, CI 74260, orange pigments with color indexes CI 11725, CI 15510, CI 45370, CI 71105, and orange pigments with color indexes CI 12085, CI 12120, CI at least one dyeing compound comprising at least one organic pigment selected from the group consisting of red pigments of CI 12370, CI 12420, CI 12490, CI 14700, CI 15525, CI 15580, CI 15620, CI 15630, CI 15800, CI 15850, CI 15865, CI 15880, CI 17200, CI 26100, CI 45380, CI 45410, CI 58000, CI 73360, CI 73915, CI 75470 and mixtures thereof; applying an agent (b) to the keratinous material, where agent (b) comprises: (b1) at least one sealant comprising a film-forming polymer; and (b2) at least one dye compound comprising at least one pigment selected from the group consisting of pigments based on lamellar metal substrate platelets, pigments based on lenticular metal substrate platelets, pigments based on metal substrate platelets including vacuum metallized pigments (VMPs), and mixtures thereof.

[0329] 11. A method for dyeing keratinous materials, in particular human hair, comprising the steps of: applying an agent (a) to the keratinous material, where the agent (a) comprises: (a1) at least one organosilicon compound from the group of silanes containing one, two or three silicon atoms; (a2) at least one first polyethylene glycol having an average molecular weight of 200 to 600 g / mol, and (a3) at least one second polyethylene glycol having an average molecular weight of 1,000 to 35,000 g / mol, and (a4) Carmine, quinacridone, phthalocyanine, sorghum, blue pigments with color indexes CI 42090, CI 69800, CI 69825, CI 73000, CI 74100, CI 74160, yellow pigments with color indexes CI 11680, CI 11710, CI 15985, CI 19140, CI 20040, CI 21100, CI 21108, CI 47000, CI 47005, green pigments with color indexes CI 61565, CI 61570, CI 74260, orange pigments with color indexes CI 11725, CI 15510, CI 45370, CI 71105, and orange pigments with color indexes CI 12085, CI 12120, CI at least one dyeing compound comprising at least one organic pigment selected from the group consisting of red pigments of CI 12370, CI 12420, CI 12490, CI 14700, CI 15525, CI 15580, CI 15620, CI 15630, CI 15800, CI 15850, CI 15865, CI 15880, CI 17200, CI 26100, CI 45380, CI 45410, CI 58000, CI 73360, CI 73915, CI 75470 and mixtures thereof; applying an agent (b) to the keratinous material, where agent (b) comprises: (b1) at least one sealant comprising a film-forming polymer; and (b2) at least one dye compound comprising α) a substrate platelet comprising mica, and β) a pigment comprising a coating comprising at least one first metal oxide (hydrate) layer comprising TiO2, SnO2, and / or iron oxide.

[0330] 12. A method for dyeing keratinous materials, in particular human hair, comprising the steps of: applying an agent (a) to the keratinous material, where the agent (a) comprises: (a1) at least one organosilicon compound from the group of silanes containing one, two or three silicon atoms; (a2) at least one first polyethylene glycol having an average molecular weight of 200 to 600 g / mol, and (a3) at least one second polyethylene glycol having an average molecular weight of 1,000 to 35,000 g / mol, and (a4) Carmine, quinacridone, phthalocyanine, sorghum, blue pigments with color indexes CI 42090, CI 69800, CI 69825, CI 73000, CI 74100, CI 74160, yellow pigments with color indexes CI 11680, CI 11710, CI 15985, CI 19140, CI 20040, CI 21100, CI 21108, CI 47000, CI 47005, green pigments with color indexes CI 61565, CI 61570, CI 74260, orange pigments with color indexes CI 11725, CI 15510, CI 45370, CI 71105, and orange pigments with color indexes CI 12085, CI 12120, CI at least one dyeing compound comprising at least one organic pigment selected from the group consisting of red pigments of CI 12370, CI 12420, CI 12490, CI 14700, CI 15525, CI 15580, CI 15620, CI 15630, CI 15800, CI 15850, CI 15865, CI 15880, CI 17200, CI 26100, CI 45380, CI 45410, CI 58000, CI 73360, CI 73915, CI 75470 and mixtures thereof; applying an agent (b) to the keratinous material, where agent (b) comprises: (b1) at least one sealant comprising a film-forming polymer; and (b2) at least one dye compound comprising α) a substrate platelet comprising borosilicate glass, and β) a pigment comprising a coating comprising at least one first metal oxide (hydrate) layer comprising TiO2, SnO2, SiO2 and / or iron oxide.

[0331] 13. A method for dyeing keratinous materials, in particular human hair, comprising the steps of: applying an agent (a) to the keratinous material, where the agent (a) comprises: (a1) at least one organosilicon compound from the group of silanes containing one, two or three silicon atoms; (a2) at least one first polyethylene glycol having an average molecular weight of 200 to 600 g / mol, and (a3) at least one second polyethylene glycol having an average molecular weight of 1,000 to 35,000 g / mol, and (a4) at least one dye compound from the group of pigments and / or direct dyes, including a pigment selected from the group of iron oxide pigments, the iron oxide pigment having a particle size in the range of 100 to 1,000 nm, more preferably 150 to 700 nm, applying an agent (b) to the keratinous material, where agent (b) comprises: (b1) at least one sealant;

[0332] 14. A method for dyeing keratinous materials, in particular human hair, comprising the steps of: applying an agent (a) to the keratinous material, where the agent (a) comprises: (a1) at least one organosilicon compound from the group of silanes containing one, two or three silicon atoms; (a2) at least one first polyethylene glycol having an average molecular weight of 200 to 600 g / mol, and (a3) at least one second polyethylene glycol having an average molecular weight of 1,000 to 35,000 g / mol, and (a4) at least one dyeing compound from the group of pigments and / or direct dyes, including a pigment from the group of iron oxide pigments having a particle size in the range of 100 to 1,000 nm, more preferably 150 nm to 700 nm, and at least one pigment selected from the group consisting of pigments based on lamellar metal substrate platelets, pigments based on lenticular metal substrate platelets, pigments based on metal substrate platelets, including vacuum metallized pigments (VMP), and mixtures thereof, applying an agent (b) to the keratinous material, where agent (b) comprises: (b1) at least one sealant;

[0333] 15. A method for dyeing keratinous materials, in particular human hair, comprising the steps of: applying an agent (a) to the keratinous material, where the agent (a) comprises: (a1) at least one organosilicon compound from the group of silanes containing one, two or three silicon atoms; (a2) at least one first polyethylene glycol having an average molecular weight of 200 to 600 g / mol, and (a3) at least one second polyethylene glycol having an average molecular weight of 1,000 to 35,000 g / mol, and (a4) at least one dyeing compound from the group of pigments and / or direct dyes, including a pigment from the group of iron oxide pigments having a particle size in the range of 100 to 1,000 nm, more preferably 150 nm to 700 nm, applying an agent (b) to the keratinous material, where agent (b) comprises: (b1) at least one sealant comprising a film-forming polymer; and (b2) at least one dyeing compound from the group of pigments and / or direct dyes, comprising at least one pigment selected from the group consisting of pigments based on lamellar metal substrate platelets, pigments based on lenticular metal substrate platelets, pigments based on metal substrate platelets including vacuum metallized pigments (VMP), and mixtures thereof.

[0334] The agent may further comprise one or more surfactants.The term surfactant is understood to mean surface-active substance.Surfactants are classified into anionic surfactants, which are composed of hydrophobic functional groups and negatively charged hydrophilic head groups, zwitterionic surfactants, which have both negative and compensating positive charges, cationic surfactants, which have hydrophobic functional groups and positively charged hydrophilic groups, and nonionic surfactants, which have no charge but have strong dipole moment in aqueous solution and are strongly hydrated.

[0335] Zwitterionic surfactants contain at least one quaternary ammonium group and at least one -COO (-) Group or -SO3 (-) By "zwitterionic surfactants" we mean surface-active compounds having a group. Particularly suitable zwitterionic surfactants are the so-called betaines, such as N-alkyl-N,N-dimethylammonium-glycinates, for example cocoalkyl-dimethylammonium glycinate, N-acylaminopropyl-N,N-dimethylammonium glycinates, for example cocoacylaminopropyldimethylammonium glycinate and 2-alkyl-3-carboxymethyl-3-hydroxyethylimidazolines, each having 8 to 18 C atoms in the alkyl or acyl group, and also cocoacylaminoethylhydroxyethylcarboxymethylglycinate. A preferred zwitterionic surfactant is a fatty acid amide derivative known under the INCI name cocamidopropyl betaine.

[0336] Zwitterionic surfactants are C8-C 24They are surface-active compounds that contain, in addition to an alkyl or acyl group, at least one free amino group and at least one -COOH or -SO3H group and are capable of forming inner salts. Examples of suitable zwitterionic 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, each having about 8 to 24 carbon atoms in the alkyl group. Typical examples of amphoteric or zwitterionic surfactants are alkylbetaines, alkylamidobetaines, aminopropionates, aminoglycinates, imidazolinium betaines, and sulfobetaines.

[0337] Particularly preferred zwitterionic surfactants are N-cocosalklylaminopropionate, cocosacylaminoethylaminopropionate and C 12 -C 18 -Acylsarcosine.

[0338] The agent may further comprise at least one non-ionic surfactant. Suitable non-ionic surfactants are alkyl polyglycosides and alkylene oxide adducts of fatty alcohols and fatty acids, each having 2 to 30 moles of ethylene oxide per mole of fatty alcohol or fatty acid. Formulations with good properties are also obtained if they comprise, as non-ionic surfactants, fatty acid esters of ethoxylated glycerin reacted with at least 2 moles of ethylene oxide. Likewise preferred non-ionic surfactants are alkyl (poly)glycosides, in particular alkyl (poly)glucosides.

[0339] In addition, the agent may contain at least one cationic surfactant. Cationic surfactant is understood to mean a surfactant, i.e. a surface-active compound, each of which has one or more positive charges. Cationic surfactants contain only positive charges. Usually, these surfactants consist of a hydrophobic part and a hydrophilic head group, the hydrophobic part usually consisting of a hydrocarbon structure (e.g. consisting of one or two straight or branched alkyl chains), and the positive charge is located in the hydrophilic head group. Examples of cationic surfactants include: - quaternary ammonium compounds which may have one or two alkyl chains with a chain length of 8 to 28 carbon atoms as hydrophobic functional groups, - a quaternary phosphonium salt substituted with one or more alkyl chains having a chain length of 8 to 28 carbon atoms, or - Tertiary sulfonium salts Examples include:

[0340] Furthermore, the cationic charge can also be part of a heterocycle in the form of an onium structure (for example an imidazolium or pyridinium ring). In addition to the functional unit with a cationic charge, the cationic surfactants may contain other non-charged functional groups, as for example in the case of ester cuts. The cationic surfactants are used in a total amount of 0.1 to 45% by weight, preferably 1 to 30% by weight, very particularly preferably 1 to 15% by weight, based on the total weight of the respective agent.

[0341] In addition, the agent may contain at least one anionic surfactant. Anionic surfactants are surface active agents that have an exclusively anionic charge (neutralized by the corresponding counter cation). Examples of anionic surfactants are fatty acids, alkyl sulfates, alkyl ether sulfates, and ether carboxylic acids with 12-20 C atoms in the alkyl group and up to 16 glycol ether groups in the molecule.

[0342] The anionic surfactants are used in a total amount of 0.1 to 45% by weight, preferably 1 to 30% by weight and very particularly preferably 1 to 15% by weight, based on the total weight of the respective agent.

[0343] Agent (a) and / or agent (b) may further comprise a matting agent. Suitable matting agents include, for example, (modified) starches, waxes, talc and / or (modified) silicas. The amount of matting agent is preferably between 0.1 and 10% by weight, based on the total amount of agent (a) or agent (b). Preferably, agent (a) comprises a matting agent.

[0344] Agent (a) and / or agent (b) may further comprise a thickening agent.

[0345] When agents (a) and / or (b) are used, they must not be too thin and must not drip off the keratinous materials, for which reason it may be preferable for agents (a) and / or (b) to comprise a thickening agent.

[0346] Therefore, in the context of one embodiment, the method for dyeing keratinous materials is preferably characterized in that agent (a) and / or agent (b) further comprises a thickening agent.

[0347] Suitable thickening agents include, for example, chemically modified celluloses such as propyl cellulose, methyl ethyl cellulose, carboxymethyl cellulose, hydroxyethyl cellulose, methyl hydroxyethyl cellulose, ethyl hydroxyethyl cellulose, hydroxypropyl cellulose, hydroxypropyl methyl cellulose, carboxymethyl hydroxyethyl cellulose, sulfoethyl cellulose, carboxymethyl sulfoethyl cellulose, hydroxypropyl sulfoethyl cellulose, hydroxyethyl sulfoethyl cellulose, methyl ethyl hydroxyethyl cellulose, methyl sulfoethyl cellulose and / or ethyl sulfoethyl cellulose.

[0348] In a preferred embodiment, the method for dyeing keratinous materials is characterized in that agent (a) and / or agent (b) further comprises a thickener selected from the group consisting of propyl cellulose, methyl ethyl cellulose, carboxymethyl cellulose, hydroxyethyl cellulose, methyl hydroxyethyl cellulose, ethyl hydroxyethyl cellulose, hydroxypropyl cellulose, hydroxypropyl methyl cellulose, carboxymethyl hydroxyethyl cellulose, sulfoethyl cellulose, carboxymethyl sulfoethyl cellulose, hydroxypropyl sulfoethyl cellulose, hydroxyethyl sulfoethyl cellulose, methyl ethyl hydroxyethyl cellulose, methyl sulfoethyl cellulose, ethyl sulfoethyl cellulose and mixtures thereof.

[0349] Particularly suitable thickening agents are selected from hydroxyethyl cellulose, hydroxypropyl cellulose, hydroxypropyl methylcellulose, and mixtures thereof.

[0350] In a particularly preferred embodiment, the method for dyeing keratinous materials is characterized in that agent (a) and / or agent (b) further comprises a thickener selected from the group consisting of hydroxyethylcellulose, hydroxypropylcellulose, hydroxypropylmethylcellulose and mixtures thereof.

[0351] Other suitable thickening agents include galactomannans. Preferred galactomannans include: Galactomannans having the INCI name Cyamopsis tetragonoloba gum (guar gum), galactomannans having the INCI name Ceratonia siliquia (carob) gum (locust bean gum), galactomannans having the INCI name Cassia Gum, and galactomannans having the INCI name Caesalpinia Spinosa Gum (tara gum).

[0352] Therefore, it is particularly preferred that the method for dyeing keratinous materials further comprises at least one galactomannan selected from the group consisting of the galactomannan having the INCI name Cyamopsis tetragonoloba gum (guar gum), the galactomannan having the INCI name Ceratonia Siliqua (carob) Gum (locust bean gum), the galactomannan having the INCI name Cassia Gum and the galactomannan having the INCI name Caesalpinia Spinosa Gum (tara gum). In a particularly preferred embodiment, the galactomannan comprises the galactomannan having the INCI name Caesalpinia Spinosa Gum (tara gum).

[0353] The amount of thickener is preferably 0.1 to 10% by weight, based in each case on the total amount of agent (a) and / or agent (b).

[0354] The agent may also contain other active ingredients, auxiliaries and additives, such as solvents; 30 Fatty acid triglycerides, C8-C 30 Fatty acid monoglycerides, C8-C 30fatty components such as fatty acid diglycerides and / or hydrocarbons; structurants, such as glucose, maleic acid and lactic acid, hair conditioning compounds, such as phospholipids, for example lecithin and kephaline; perfume oils, dimethyl isosorbide and cyclodextrin; fibre structure improvers, in particular mono-, di- and oligosaccharides, such as glucose, galactose, fructose and lactose; dyes for colouring the formulations; antidandruff active ingredients, for example piroctone olamine, zinc omadine and climbazole; amino acids and oligopeptides; animal and / or vegetable protein hydrolysates, and also their fatty acid condensates, or optionally anionic or cationically modified derivatives; vegetable oils; light stabilizers and UV blockers; active ingredients, for example panthenol, pantothenic acid, pantolactone, allantoin, pyrrolidinone carboxylic acid and its salts, and bisabolol; polyphenols, In particular they may contain hydroxycinnamic acids, 6,7-dihydroxycoumarins, hydroxybenzoic acids, catechins, tannins, leukoanthocyanidins, anthocyanidins, flavanones, flavones and flavonols; ceramides or pseudoceramides; vitamins, provitamins and vitamin precursors; plant extracts; fats and waxes, such as fatty alcohols, beeswax, montan wax and paraffin; swelling and penetrating agents, such as glycerol, propylene glycol monoethyl ether, carbonates, bicarbonates, guanidine, urea and primary, secondary and tertiary phosphates; opacifying agents, such as latex, styrene / PVP and styrene / acrylamide copolymers; pearlescent agents, such as ethylene glycol mono- and distearate, and PEG-3-distearate; and propellants, such as propane-butane mixtures, N2O, dimethyl ether, CO2 and air.

[0355] The selection of these additional substances is made by those skilled in the art depending on the desired properties of the agent. For other optional ingredients and the amounts of said ingredients to be used, explicit reference should be made to the relevant manuals known to those skilled in the art. Additional active ingredients and adjuvants are preferably always used in the formulations according to the invention in an amount of 0.0001-25% by weight, in particular 0.0005-15% by weight, based on the total weight of the particular agent.

[0356] <Method for dyeing keratinous materials> In the context of the method according to the invention, agents (a) and (b) are applied to keratinous materials, in particular human hair. Agents (a) and (b) are therefore ready-to-use agents. Agents (a) and (b) are different from each other.

[0357] In principle, agents (a) and (b) can be applied simultaneously or successively, with successive application being preferred.

[0358] The best results were obtained when agent (a) was first applied to the keratinous material in a first step and agent (b) was applied in a second step.

[0359] Very particular preference is therefore given to a method for treating keratinous materials, in particular a method for dyeing keratinous materials, in particular human hair, which comprises, in the indicated order, the following steps: In a first step, applying an agent (a) to the keratinous material, said agent (a): (a1) at least one organosilicon compound from the group of silanes containing one, two or three silicon atoms; (a2) at least one first polyethylene glycol having an average molecular weight of 200 to 600 g / mol, and (a3) at least one second polyethylene glycol having an average molecular weight of 1,000 to 35,000 g / mol; And in a second step, applying an agent (b) to the keratin material, wherein agent (b) is: (b1) at least one sealing agent; Including, A method according to which at least one of the agents (a) and (b) further comprises at least one dyeing compound from the group consisting of pigments and / or direct dyes.

[0360] In order to impart high washing fastness to the dyed keratinous materials over a longer period, agents (a) and (b) are also particularly preferably used within one and the same dyeing process, which means that there is a period of up to several hours between the application of agents (a) and (b).

[0361] In the context of a further particularly preferred embodiment, the method is characterized in that first the agent (a) is applied and then the agent (b) is applied, and the time between the application of the agent (a) and the application of the agent (b) is at most 24 hours, preferably at most 12 hours, particularly preferably at most 6 hours.

[0362] A characteristic feature of agent (a) is that it comprises at least one reactive organosilicon compound (a1), which undergoes an oligomerization or polymerization reaction, thereby functionalizing the hair surface upon contact with the hair. In this way, a first film is formed. In a second step of the method, a second agent (b) is applied to the hair. During the application of agent (b) which comprises at least one film-forming polymer as sealing agent (b1), the sealing agent (b1) interacts with the silane film and thus bonds with the keratinous material. During the application of agent (b) which comprises at least one alkalizing or acidifying agent as sealing agent (b1), the formation of the silane film is favorably influenced. The desired coloration of the keratinous material is influenced by means of dyeing compounds in agent (a) and / or agent (b). The coloring can be achieved by a colored silane film (wherein the dyeing compound is contained only in agent (a)), a colored polymer film (wherein the dyeing compound is contained only in agent (b) and agent (b) comprises a film-forming polymer as sealing agent (b1)), or a colored silane film and a colored polymer film (wherein agents (a) and (b) each comprise at least one dyeing compound and agent (b) comprises a film-forming polymer as sealing agent (b1)).

[0363] In the context of a further embodiment, the following steps, in the order given: (1) applying an agent (a) to a keratinous material; (2) allowing the agent (a) to act for 10 seconds to 20 minutes, preferably 30 seconds to 15 minutes; (3) optionally rinsing the keratinous material with water; (4) applying agent (b) to the keratinous material; (5) allowing the agent (b) to act for 30 seconds to 30 minutes, preferably 30 seconds to 10 minutes; (6) Rinse the keratinous material with water. Most particularly preferred is a method comprising:

[0364] In steps (3) and (6) of the method, rinsing the keratinous material with water is understood to mean, according to the invention, the use of only water in the rinsing step, and not any other agent different from agents (a) and (b).

[0365] In step (1), first the agent (a) is applied to keratinous material, in particular human hair.

[0366] After application, the agent (a) is allowed to act on the keratinous materials. In this respect, application times to the hair of from 10 seconds to 30 minutes, preferably from 20 seconds to 20 minutes, very particularly preferably from 30 seconds to 15 minutes, have proven to be particularly beneficial.

[0367] In the context of a preferred embodiment of the method, agent (a) can now be rinsed from the keratin materials before agent (b) is applied to the hair in a subsequent step.

[0368] If agent (b) was applied to keratinous materials which still had agent (a) applied thereto, colorations were obtained which likewise had good washfastness.

[0369] In step (4), agent (b) is then applied to the keratinous material. After application, agent (b) is allowed to act on the hair.

[0370] Even with short application times of agent (b), the method makes it possible to produce colorations with particularly good strength and washing fastness. Application times to the hair of 10 seconds to 10 minutes, preferably 20 seconds to 5 minutes, very particularly preferably 30 seconds to 3 minutes, have proven to be particularly beneficial.

[0371] In step (6), agent (b) (and optionally still agent (a) if present) is rinsed from the keratinous material with water.

[0372] In the context of this embodiment, the sequence of steps (1) to (6) is preferably carried out within a 24 hour period.

[0373] In a particularly preferred embodiment of the method, in step (1), agent (a) is applied to moist keratinous material, in particular moist human hair.

[0374] Agent (a) comprises a class of highly reactive compounds which, together with organosilicon compounds, can undergo hydrolysis or oligomerization and / or polymerization upon application. As a result of their high reactivity, these organosilicon compounds form a film on the keratinous materials.

[0375] It is of considerable advantage to the user to prepare the ready-to-use formulation (a) immediately prior to application in order to avoid premature oligomerization or polymerization.

[0376] In the context of yet another embodiment, the following steps, in the order presented: (1) preparing agent (a) by mixing a first agent (a') and a second agent (a''); the first agent (a') comprises at least one organosilicon compound (a1) from the group of silanes containing one, two or three silicon atoms, and the second agent (a″) comprises at least one first polyethylene glycol (a2) having an average molecular weight of 200 to 600 g / mol, at least one second polyethylene glycol (a3) ​​having an average molecular weight of 1,000 to 35,000 g / mol and at least one dyeing compound from the group of the pigments and / or direct dyes, (2) applying agent (a) to a preferably wet keratinous material; (3) allowing the agent (a) to act for 10 seconds to 30 minutes, preferably 30 seconds to 15 minutes; (4) optionally rinsing the keratinous material with water; (5) applying agent (b) to the keratinous material; (6) allowing the agent (b) to act for 30 seconds to 30 minutes, preferably 30 seconds to 10 minutes; (7) Rinse the keratinous material with water A method comprising the steps of:

[0377] In order to be able to provide a formulation that is as stable as possible, the agent (a') itself is preferably formulated to have low moisture content or be anhydrous.

[0378] In a preferred embodiment, the method is characterized in that the agent (a') has a water content of 0.001 to 10% by weight, preferably 0.5 to 9% by weight, more preferably 1 to 8% by weight and very particularly preferably 1.5 to 7% by weight, relative to the total weight of agent (a').

[0379] Agent (a'') may comprise water. The water content is preferably at most 20% by weight, more preferably at most 10% by weight, based on the total amount of agent (a'').

[0380] It is preferred that the content of the at least one first polyethylene glycol (a2) having an average molecular weight between 200 and 600 g / mol and the at least one second polyethylene glycol (a3) ​​having an average molecular weight between 1,000 and 35,000 g / mol amounts to at least 60% by weight, more preferably at least 75% by weight and very particularly preferably at least 85% by weight, based on the total amount of agent (a″).

[0381] Within this embodiment, the ready-to-use agent (a) is prepared by mixing agents (a') and (a'').

[0382] For example, the user may first stir or shake agent (a') containing organosilicon compound (a1) with agent (a''). The user can then apply this mixture of (a') and (a'') to the keratinous material, preferably wet, either immediately after its preparation or after a short reaction time of 10 seconds to 30 minutes. The user can then apply agent (b) as described above.

[0383] Furthermore, it may be preferred to use in the process an agent (a''') comprising a pigment and / or a dyeing compound from the group of direct dyes, comprising at least one pigment selected from the group consisting of pigments based on lamellar metal substrate platelets, pigments based on lenticular metal substrate platelets, pigments based on metal substrate platelets, including vacuum metallized pigments (VMP), and mixtures thereof.

[0384] In a preferred embodiment, the method is characterized in that the agent (a''') comprises at least one pigment selected from the group consisting of pigments based on lamellar metal substrate platelets, pigments based on lenticular metal substrate platelets, pigments based on metal substrate platelets including vacuum metallized pigments (VMP), and mixtures thereof.

[0385] In the context of a further embodiment, particularly preferred is a method comprising the steps of: (1) preparing agent (a) by mixing a first agent (a'), a second agent (a'') and a third agent (a'''), wherein the first agent (a') comprises at least one organosilicon compound (a1) from the group of silanes containing one, two or three silicon atoms; the second agent (a″) comprises at least one first polyethylene glycol (a2) having an average molecular weight of 200 to 600 g / mol, at least one second polyethylene glycol (a3) ​​having an average molecular weight of 1,000 to 35,000 g / mol and at least one dyeing compound from the group of the pigments and / or direct dyes, ,and - the third agent (a''') comprises at least one pigment selected from the group consisting of pigments based on lamellar metal substrate platelets, pigments based on lenticular metal substrate platelets, pigments based on metal substrate platelets, including vacuum metallized pigments (VMP), and mixtures thereof, (2) applying agent (a) to a preferably wet keratinous material; (3) allowing the agent (a) to act for 10 seconds to 30 minutes, preferably 30 seconds to 15 minutes; (4) optionally rinsing the keratinous material with water; (5) applying agent (b) to the keratinous material; (6) allowing the agent (b) to act for 30 seconds to 30 minutes, preferably 30 seconds to 10 minutes; (7) Rinse the keratinous material with water The method includes:

[0386] Within this embodiment, the ready-to-use agent (a) is prepared here by mixing agent (a'), agent (a'') and agent (a''').

[0387] For example, the user may first stir or shake agent (a'') with agent (a''') and then stir or shake the resulting mixture with agent (a') containing organosilicon compound (a1). The user can then apply this mixture of (a'), (a'') and (a''') to the keratinous material either immediately after its preparation or after a short reaction time of 10 seconds to 20 minutes. The user can then apply agent (b) as described above.

[0388] <Multi-component packaging unit (component kit)> For user convenience, the user is preferably provided with all necessary agents in a multi-packaged unit (kit of parts).

[0389] A second subject of the invention is therefore a combination of the following, packaged separately from one another: - a first container having an agent (a'), where agent (a') is: (a1) comprises at least one organosilicon compound from the group of silanes having one, two or three silicon atoms, and - a second container having an agent (a''), where agent (a'') is: (a2) at least one first polyethylene glycol having an average molecular weight of 200 to 600 g / mol, and (a3) at least one second polyethylene glycol having an average molecular weight of 1,000 to 35,000 g / mol; and - a third container having an agent (b), where agent (b) is: (b1) Contains at least one sealing agent A multi-component packaging unit (kit of parts) for dyeing keratinous materials comprising: wherein components (a1), (a2) and (b1) are disclosed in detail above, and at least one of the agents (a″) and (b) further comprises at least one dyeing compound from the group of the pigments and / or direct dyes.

[0390] Within this embodiment, it is most preferred that agent (a'') further comprises at least one dyeing compound from the group of the pigments and / or direct dyes.

[0391] The organosilicon compounds (a1) from the group of silanes having one, two or three silicon atoms contained in the agent (a') of the kit correspond to the organosilicon compounds (a1) also used in the agent (a) of the method described above.

[0392] The first polyethylene glycol (a2) having an average molecular weight of 200 to 600 g / mol and the second polyethylene glycol (a3) ​​having an average molecular weight of 1,000 to 35,000 g / mol contained in agent (a'') of the kit correspond to the polyethylene glycols also used in agent (a) of the method described above.

[0393] The sealant (b1) contained in the agent (b) of the kit corresponds to the sealant (b1) also used in the agent (b) of the method described above.

[0394] Preferred in the context of other embodiments is a multi-component packaged unit (kit of parts) for dyeing keratinous materials, comprising, packaged separately from one another, the following: - a first container having an agent (a'), where agent (a') is: at least one organosilicon compound (a1) from the group of silanes containing 1, 2 or 3 silicon atoms, and - a second container having an agent (a''), where agent (a'') is: (a2) at least one first polyethylene glycol having an average molecular weight of 200 to 600 g / mol; (a3) at least one second polyethylene glycol having an average molecular weight of 1,000 to 35,000 g / mol, including an organic pigment, comprising a dyeing compound from the group of pigments and / or direct dyes, and - a third container having an agent (b), where agent (b) is: (b1) at least one sealing agent; wherein components (a1), (a2) and (b1) are as disclosed in detail above.

[0395] Preferred in the context of still other embodiments is a multi-component packaged unit (kit of parts) for dyeing keratinous materials, comprising, packaged separately from one another, the following: - a first container having an agent (a'), where agent (a') is: at least one organosilicon compound (a1) from the group of silanes containing 1, 2 or 3 silicon atoms, and - a second container having an agent (a''), where agent (a'') is: (a2) at least one first polyethylene glycol having an average molecular weight of 200 to 600 g / mol; (a3) at least one second polyethylene glycol having an average molecular weight of 1,000 to 35,000 g / mol, and at least one dyeing compound from the group of the pigments and / or direct dyes, Including, - a third container having an agent (b), where agent (b) is: (b1) at least one sealing agent comprising a film-forming polymer and further comprising at least one dyeing compound from the group of pigments and / or direct dyes; wherein components (a1), (a2) and (b1) are as disclosed in detail above.

[0396] In the context of yet another embodiment, preference is given to a multi-component packaged unit (kit of parts) for dyeing keratinous materials, comprising, packaged separately from one another, the following: - a first container having an agent (a'), where agent (a') is: at least one organosilicon compound (a1) from the group of silanes containing 1, 2 or 3 silicon atoms, and - a second container having an agent (a''), where agent (a'') is: (a2) at least one first polyethylene glycol having an average molecular weight of 200 to 600 g / mol; (a3) at least one second polyethylene glycol having an average molecular weight of 1,000 to 35,000 g / mol, and at least one dyeing compound from the group of pigments and / or direct dyes, including organic pigments, Including, - a third container having an agent (a'''), where agent (a'') is: At least one dyeing compound from the group of pigments and / or direct dyes, including at least one pigment selected from the group consisting of pigments based on lamellar metal substrate platelets, pigments based on lenticular metal substrate platelets, pigments based on metal substrate platelets including vacuum metallized pigments (VMP), and mixtures thereof. - a fourth container having an agent (b), where agent (b) is: (b1) at least one sealing agent; wherein components (a1), (a2) and (b1) are disclosed in detail above.

[0397] In particular, when agent (b) comprises at least one dyeing compound from the group of pigments and / or direct dyes, it may be advantageous to prepare the ready-to-use agent (b) by mixing the two agents (b') and (b''). In this embodiment, the sealing agent (b1) and the at least one dyeing compound from the group of pigments and / or direct dyes are prepared separately from each other.

[0398] Preferred in the context of this further embodiment is a multi-component packaging unit (kit of parts) for dyeing keratinous materials, comprising, packaged separately from one another, the following: - a first container having an agent (a'), where agent (a') is: at least one organosilicon compound (a1) from the group of silanes containing 1, 2 or 3 silicon atoms, and - a second container having an agent (a''), where agent (a'') is: (a2) at least one first polyethylene glycol having an average molecular weight of 200 to 600 g / mol, and (a3) at least one second polyethylene glycol having an average molecular weight of 1,000 to 35,000 g / mol and optionally at least one dyeing compound from the group of pigments and / or direct dyes, - a third container having an agent (b'), where agent (b') is: (b1) at least one sealant comprising a film-forming polymer; And - a fourth container containing an agent (b''), where agent (b'') is: containing at least one dyeing compound from the group of pigments and / or direct dyes, wherein components (a1), (a2) and (b1) are as disclosed in detail above.

[0399] In the above embodiments, it may be preferred that agents (b') and / or (b) further comprise a thickening agent.

[0400] Further preferred is a multi-component packaging unit (kit of parts), wherein agent (b') or agent (b) comprises a thickening agent selected from the group consisting of ethyl cellulose, hydroxypropyl cellulose, hydroxypropyl methyl cellulose, and mixtures thereof.

[0401] With regard to the further preferred embodiments of the multi-component packaging unit, what has been said regarding the method applies mutatis mutandis.

[0402] The oligomerization and polymerization reaction of the organosilicon compound (a1) is already initiated during mixing of the agents (a') and (a'') or during mixing of the agents (a'), (a'') and (a''').

[0403] It has proven to be a great challenge to optimally adjust the rate of oligomerization and polymerization of the organosilicon compounds (a1), and thus the rate of formation of the silane film on the keratinous materials, to the conditions of use.

[0404] For example, when used on human hair, if the rate of oligomerization and polymerization is too fast, polymerization will be completed before all sections of the hair have been treated. Also, if polymerization is too fast, it will be impossible to treat the entire head. In a dyeing process, excessively fast polymerization will result in uneven dyeing, so that the last sections treated will be insufficiently dyed.

[0405] On the other hand, if the polymerization is too slow, all areas of the keratinous material can be treated without time pressure, but this results in increased application times.

[0406] Surprisingly, it has been found that the presence in the agent (a) of at least one first polyethylene glycol (a2) having an average molecular weight of 200 to 600 g / mol and at least one second polyethylene glycol (a3) ​​having an average molecular weight of 1,000 to 35,000 g / mol not only results in an improved film formation on the keratinous materials, but also in optimal oligomerization and polymerization rates of the organosilicon compound (a1). EXAMPLES

[0407] The following formulations were prepared (all percentages are by weight unless otherwise noted):

[0408] [Table 1]

[0409] [Table 2]

[0410] A ready-to-use formulation (a) was prepared by mixing 5 g of formulation (a') and 15 g of formulation (a'').

[0411] [Table 3]

[0412] The agent (a) was massaged into a damp hair bundle (Kerling, Euronaturhaar white) and left to act for 1 minute, after which the agent (a) was rinsed with water.

[0413] Thereafter, agent (b) was applied to the hair bundle and left to act for 5 minutes, after which it was also rinsed with water.

Claims

1. A method for dyeing keratinous materials, in particular human hair, comprising the following steps: - applying agent (a) to the keratinous material, where agent (a) comprises: (a1) at least one organosilicon compound from the group of silanes having 1, 2 or 3 silicon atoms, (a2) at least one first polyethylene glycol having an average molecular weight of 200 to 600 g / mol, and (a3) at least one second polyethylene glycol having an average molecular weight of 1,000 to 35,000 g / mol, - applying agent (b) to the keratinous material, where agent (b) comprises: (b1) at least one sealing agent, and where at least one of agents (a) and (b) further comprises at least one dyeing compound from the group consisting of pigments and / or direct dyes.

2. Agent (a) is of formula (I) and / or (II): 【Chemical 1】 [wherein, -R １ 、R ２ are, independently of one another, a hydrogen atom or a C １ -C ６ alkyl group, - L represents a linear or branched divalent C １ - C ２０ alkylene group, -R ３ 、R ４ are, independently of each other, C １ -C ６ represents an alkyl group, - a represents an integer from 1 to 3, - b represents the integer 3 - a] 【Chemical Formula 2】 [In the organosilicon compound represented by formula (II), -R ５ , R ５ ’, R ５ ’’, R ６ , R ６ ’ and R ６ ’’ are each independently a C １ -C ６ alkyl group, - A, A', A'', A''' and A'''' are each independently a linear or branched divalent C １ - C ２０ alkylene group, -R ７ and R ８ are each independently a hydrogen atom, C １ -C ６ alkyl group, hydroxy C １ -C ６ alkyl group, C ２ -C ６ alkenyl group, amino C １ -C ６ alkyl group or formula (III): [Chemical Formula 3] [wherein, - c represents an integer from 1 to 3, - d represents the integer 3 - c, - c' represents an integer from 1 to 3, - d' represents the integer 3 - c', - c'' represents an integer from 1 to 3, - d'' represents the integer 3 - c'', - e represents 0 or 1, - f represents 0 or 1, - g represents 0 or 1, - h represents 0 or 1, provided that at least one of e, f, g and h is different from 0] represents a group represented by] The method according to claim 1, characterized in that it comprises at least one organosilicon compound (a1) represented by the formula.

3. Agent (a) is of formula (I): [Chemical Formula 4] [wherein, -R １ and R ２ both represent a hydrogen atom, - L is a linear divalent C １ - C ６ alkylene group, preferably a propylene group (-CH ２ - CH ２ - CH ２ -), or an ethylene group (-CH ２ - CH ２ -), and represents -R ３ and R ４ each independently represents a methyl group or an ethyl group, - a represents the number 3, - b represents the number 0] The method according to claim 1, characterized in that it comprises at least one organosilicon compound (a1) represented by the formula.

4. Agent (a) is - (3-aminopropyl)triethoxysilane - (3-aminopropyl)trimethoxysilane - 1-(3-aminopropyl)silanetriol - (2-aminoethyl)triethoxysilane - (2-aminoethyl)trimethoxysilane - 1-(2-aminoethyl)silanetriol - (3-dimethylaminopropyl)triethoxysilane - (3-dimethylaminopropyl)trimethoxysilane -1-(3-Dimethylaminopropyl) silanetriol -(2-Dimethylaminoethyl)triethoxysilane -(2-Dimethylaminoethyl)trimethoxysilane, and / or -1-(2-Dimethylaminoethyl) silanetriol The method according to claim 1, characterized by comprising at least one organosilicon compound (a1) represented by formula (I) selected from the group consisting of

5. Agent (a) is of formula (II): [Chemical Formula 5] [Wherein, -e and f both represent the number 1, -g and h both represent the number 0, - A and A' are each independently a linear divalent C １ - C ６ represents an alkylene group, -R ７ represents a hydrogen atom, a methyl group, a 2-hydroxyethyl group, a 2-alkenyl group, a 2-aminoethyl group or a group represented by the formula (III)]] The method according to claim 1, characterized by comprising at least one organosilicon compound (a1) represented by

6. Agent (a) is of formula (IV): [[Chemical Formula 6]] [Wherein, -R ９ represents C １ -C １８ alkyl group, -R １０ is a hydrogen atom or C １ -C ６ represents an alkyl group, -R １１ is C １ -C ６ represents an alkyl group, -k represents an integer from 1 to 3, -m represents the integer 3-k] The method according to claim 1, characterized by comprising at least one organosilicon compound (a1) represented by

7. Agent (a) is -Methyltrimethoxysilane -Methyltriethoxysilane -Ethyltrimethoxysilane -Ethyltriethoxysilane -Propyltrimethoxysilane -Propyltriethoxysilane -Hexyltrimethoxysilane -Hexyltriethoxysilane -Octyltrimethoxysilane -Octyltriethoxysilane -Dodecyltrimethoxysilane -Dodecyltriethoxysilane -Octadecyltrimethoxysilane -Octadecyltriethoxysilane, and -Mixtures thereof The method according to claim 1, characterized by comprising at least one organosilicon compound (a1) represented by formula (IV) selected from the group consisting of

8. The method according to claim 1, characterized in that agent (a) comprises at least two structurally different organosilicon compounds (a1).

9. The sealing agent comprises a compound selected from the group consisting of a film-forming polymer, an alkalizing agent, an acidifying agent, and mixtures thereof, according to the method of claim 1.

10. The agent (a) is characterized by containing polyethylene glycol having an average molecular weight of 400 g / mol as the first polyethylene glycol (a2) having an average molecular weight of 200 to 600 g / mol, and polyethylene glycol having an average molecular weight of 6,000 g / mol as the second polyethylene glycol (a3) having an average molecular weight of 1,000 to 35,000 g / mol, the method according to claim 1.

11. The agent (a) further comprises at least one dyeing compound from the group consisting of pigments and / or direct dyes, the method according to claim 1.

12. The agent (b) further comprises at least one dyeing compound from the group of pigments and / or direct dyes, the method according to claim 1.

13. The agent (a) contains at least one organic pigment selected from the group consisting of carmine, quinacridone, phthalocyanine, sorghum, blue pigments with Color Index numbers Cl 42090, CI 69800, CI 69825, CI 73000, CI 74100, CI 74160, yellow pigments with Color Index numbers CI 11680, CI 11710, CI 15985, CI 19140, CI 20040, CI 21100, CI 21108, CI 47000, CI 47005, green pigments with Color Index numbers CI 61565, CI 61570, CI 74260, orange pigments with Color Index numbers CI 11725, CI 15510, CI 45370, CI 71105, red pigments with Color Index numbers CI 12085, CI 12120, CI 12370, CI 12420, CI 12490, CI 14700, CI 15525, CI 15580, CI 15620, CI 15630, CI 15800, CI 15850, CI 15865, CI 15880, CI 17200, CI 26100, CI 45380, CI 45410, CI 58000, CI 73360, CI 73915, CI 75470, and mixtures thereof, and further comprises a dyeing compound from the group of pigments and / or direct dyes, the method according to claim 1.

14. Agent (a) contains at least one organic pigment selected from the group consisting of carmine, quinacridone, phthalocyanine, sorghum, blue pigments with Color Indexes Cl 42090, CI 69800, CI 69825, CI 73000, CI 74100, CI 74160, yellow pigments with Color Indexes CI 11680, CI 11710, CI 15985, CI 19140, CI 20040, CI 21100, CI 21108, CI 47000, CI 47005, green pigments with Color Indexes CI 61565, CI 61570, CI 74260, orange pigments with Color Indexes CI 11725, CI 15510, CI 45370, CI 71105, red pigments with Color Indexes CI 12085, CI 12120, CI 12370, CI 12420, CI 12490, CI 14700, CI 15525, CI 15580, CI 15620, CI 15630, CI 15800, CI 15850, CI 15865, CI 15880, CI 17200, CI 26100, CI 45380, CI 45410, CI 58000, CI 73360, CI 73915, CI 75470, and mixtures thereof, and further contains a coloring compound from the group of pigments and / or direct dyes, and at least one organic pigment selected from the group consisting of pigments based on lamellar metal substrate platelets, pigments based on lenticular metal substrate platelets, pigments based on metal substrate platelets containing vacuum metallized pigments (VMP), and mixtures thereof, and / or at least one pigment based on natural or synthetic mica coated with at least one metal oxide and / or metal oxychloride, and further contains a coloring compound from the group of pigments and / or direct dyes. The method according to claim 1, characterized in that it has the above features.

15. The following, packaged separately from each other: - A first container having agent (a'), where agent (a') is: (a1) containing at least one organosilicon compound from the group of silanes having 1, 2, or 3 silicon atoms - A second container having agent (a''), where agent (a'') is: (a2) at least one first polyethylene glycol having an average molecular weight of 200 to 600 g / mol, and - at least one second polyethylene glycol having an average molecular weight of 1,000 to 35,000 g / mol, - a third container having agent (b), where agent (b) is: - (b1) containing at least one sealing agent, - containing, wherein at least one of agent (a'') and agent (b) further comprises at least one dyeing compound from the group of pigments and / or direct dyes, a multi-component packaging unit (member kit) for dyeing keratinous substances.

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