DE102021210422A1 - A method of coloring keratinic material comprising the use of an organosilicon compound, a hydroxyacetophenone, a coloring compound and an aftertreatment agent - Google Patents

Abstract

The subject of the present invention is a method for coloring keratinic material, in particular human hair, comprising the following steps:- Application of an agent (a) to the keratinic material, the agent (a) containing:(a1) at least one organic silicon compound from the group of silanes with one, two or three silicon atoms, and(a2) at least one hydroxyacetophenone, and application of an agent (b) to the keratinic material, wherein the agent (b) contains:(b1) at least one sealing agent, wherein at least one of agents (a) and (b) also contains at least one coloring compound from the group of pigments and/or substantive dyes. Multi-component packaging units (kit-of-parts) for coloring keratinic material are also disclosed.

Description

The subject matter of the present application is a method for treating keratinic material, in particular human hair, which comprises the use of two agents (a) and (b). The agent (a) is characterized by its content of at least one organic silicon compound (a1) and an acetophenone derivative. The agent (b) contains at least one sealing reagent (b1). Furthermore, either agent (a) or agent (b) or both agents (a) and (b) contain at least one color-providing compound from the group of pigments and/or direct dyes.

Another subject of this application is a multi-component packaging unit (kit of parts) for coloring keratin material, in particular human hair, which comprises at least three agents (a′), (a″) and (b) made up separately from one another. The agent (a) used in the process described above can be prepared from the agents (a') and (a'').

Changing the shape and color of keratin fibers, in particular hair, represents an important area of modern cosmetics. The person skilled in the art knows various coloring systems for changing the hair color, depending on the coloring requirements. Oxidation colorants are usually used for permanent, intensive colorations with good fastness properties and good gray coverage. Such colorants usually contain oxidation dye precursors, so-called developer components and coupler components, which form the actual dyes with one another under the influence of oxidizing agents such as hydrogen peroxide. Oxidation coloring agents are characterized by very long-lasting coloring results.

When using substantive dyes, dyes that have already formed diffuse from the dye into the hair fiber. In comparison to oxidative hair coloring, the colorings obtained with substantive dyes are less durable and can be washed out more quickly. Dyes with direct dyes usually remain on the hair for a period of between 5 and 20 hair washes.

The use of color pigments is known for short-term color changes on the hair and/or the skin. Color pigments are generally understood to mean insoluble, color-imparting substances. These are present in undissolved form in the form of small particles in the coloring formulation and are only deposited from the outside on the hair fibers and/or the surface of the skin. Therefore, they can usually be removed without leaving any residue with a few washes with detergents containing surfactants. Various products of this type are available on the market under the name of hair mascara.

If the user wants particularly long-lasting colorations, the use of oxidative colorants has so far been his only option. However, despite numerous optimization attempts, an unpleasant smell of ammonia or amines cannot be completely avoided in oxidative hair coloring. The hair damage still associated with the use of the oxidative colorants also has a disadvantageous effect on the user's hair.

EP 2168633 B1 deals with the task of creating long-lasting hair coloring using pigments. The document teaches that when using the combination of a pigment, an organic silicon compound, a film-forming polymer and a solvent, colorations can be produced on hair which are particularly resistant to abrasion and/or shampooing.

There is a need to provide hair dyeings with pigments which, on the one hand, have high fastness to washing and rubbing and, on the other hand, do not adversely affect the hair properties such as manageability and feel. To this end, it would be desirable to obtain intensive colorations by good absorption of the pigments on the keratin material.

Accordingly, the object of the present invention was to provide a dyeing system with pigments which has fastness properties comparable to oxidative dyeing. In particular, the fastness to washing should be outstanding, but the use of the oxidation dye precursors otherwise usually used for this purpose should be avoided.

Surprisingly, it has now turned out that the above-mentioned object can be achieved in an excellent manner if keratinic materials, in particular human hair, are treated with one method be colored, in which at least two agents (a) and (b) are applied to the keratin materials (hair). In this case, the first agent (a) contains at least one organic silicon compound from the group of silanes having one, two or three silicon atoms, and also at least one hydroxyacetophenone (a2). The second means (b) contains at least one sealing reagent (b1).

When using the two agents (a) and (b) in a dyeing process, keratinic material could be dyed with particularly high color intensity and high fastness properties.

• - Anwendung eines Mittels (a) auf dem keratinischem Material, wobei das Mittel (a) enthält:
  • (a1) mindestens eine organische Siliciumverbindung aus der Gruppe der Silane mit einem, zwei oder drei Siliciumatomen, und
  • (a2) mindestens ein Hydroxyacetophenon, und
• - Anwendung eines Mittels (b) auf dem keratinischen Material, wobei das Mittel (b) enthält:
  • (b1) mindestens ein Versiegelungsreagenz,

wobei mindestens eines der Mittel (a) und (b) ferner mindestens eine farbgebende Verbindung aus der Gruppe der Pigmente und/oder der direktziehenden Farbstoffe enthält.A first object of the present invention is a method for coloring keratin material, in particular human hair, comprising the following steps:

• - Application of an agent (a) to the keratin material, the agent (a) containing:
  • (a1) at least one organic silicon compound from the group of silanes having one, two or three silicon atoms, and
  • (a2) at least one hydroxyacetophenone, and
• - Application of an agent (b) to the keratinic material, the agent (b) containing:
  • (b1) at least one sealing reagent,

where at least one of agents (a) and (b) also contains at least one color-providing compound from the group of pigments and/or substantive dyes.

In the work leading to this invention, it turned out that the preferably successive use of agents (a) and (b) enables the production of very stable and washfast colorations on the keratinic materials. Without being restricted to this theory, it is assumed in this context that the joint use of an organic silicon compound (a1) and a hydroxyacetophenone (a2) leads to the formation of a particularly resistant film on the keratin material. With the application of the second agent (b), the film applied to the keratin material is sealed and thus made more resistant to washing and/or abrasion. Colored films can be obtained by using at least one color-providing compound from the group of pigments and/or direct dyes in at least one of compositions (a) and (b).

In this way, the color-providing compounds can be permanently fixed on the keratinic material, so that extremely wash-fast colorations with good resistance to abrasion and/or shampooing could be obtained.

The film formation of the organic silicon compound (a1) could be significantly improved with the aid of the at least one hydroxyacetophenone. This made it possible to obtain extremely rub-fast and wash-fast colorations with good resistance to abrasion and/or shampooing.

keratin material

Keratinic material means hair, skin, nails (such as fingernails and/or toenails). Wool, fur and feathers also fall under the definition of keratin material.

Keratinic material is preferably understood to mean human hair, human skin and human nails, in particular fingernails and toenails. Very particularly preferably, keratin material is understood as meaning human hair.

Means (a) and (b)

Within the scope of the method described, the agents (a) and (b) are applied to the keratin material, in particular human hair. The two means (a) and (b) are different from each other.

• Anwendung eines Mittels (a) auf dem keratinischem Material, wobei das Mittel (a) enthält:
  • (a1) mindestens eine organische Siliciumverbindung aus der Gruppe der Silane mit einem, zwei oder drei Siliciumatomen, und
  • (a2) mindestens ein Hydroxyacetophenon, und
• Anwendung eines Mittels (b) auf dem keratinischen Material, wobei das Mittel (b) enthält:
  • (b1) mindestens ein Versiegelungsreagenz,

wobei mindestens eines der Mittel (a) und (b) ferner mindestens eine farbgebende Verbindung aus der Gruppe der Pigmente und/oder der direktziehenden Farbstoffe enthält.In other words, a first subject matter of the present invention is a method for treating keratinic material, in particular human hair, comprising the following steps:

• Application of an agent (a) to the keratin material, the agent (a) containing:
  • (a1) at least one organic silicon compound from the group of silanes having one, two or three silicon atoms, and
  • (a2) at least one hydroxyacetophenone, and
• Application of an agent (b) to the keratinic material, the agent (b) including:
  • (b1) at least one sealing reagent,

where at least one of agents (a) and (b) also contains at least one color-providing compound from the group of pigments and/or substantive dyes.

mean (a)

It can be preferred that the agent (a) contains the ingredients (a1) and (a2) essential to the invention in a cosmetic carrier, particularly preferably in an aqueous or aqueous-alcoholic cosmetic carrier. This cosmetic carrier can be liquid, gel or cream. Pasty, solid or powdery cosmetic carriers can also be used for the production of agent (a). For the purpose of hair treatment, in particular hair coloring, such carriers are, for example, creams, emulsions, suspensions, gels or surfactant-containing foaming solutions such as shampoos, foam aerosols, foam formulations or other preparations that are suitable for use on the hair.

Agent (a) preferably contains at least 10% by weight of water, based on the total weight of agent (a). The water content of agent (a) is more preferably above 20% by weight and even more preferably above 25% by weight. The cosmetic vehicle can also be hydroalcoholic. In the context of the present invention, aqueous-alcoholic solutions are to be understood as meaning aqueous solutions containing a C ₁ -C ₄ -alcohol, in particular ethanol or isopropanol. Agent (a) can also contain other organic solvents, such as methoxybutanol, benzyl alcohol, ethyl diglycol or 1,2-propylene glycol. All water-soluble organic solvents are preferred.

Organic silicon compounds from the group of silanes (a1)

The agent (a) contains at least one organic silicon compound from the group of silanes having one, two or three silicon atoms as the ingredient (a1) essential to the invention.

The agent (a) particularly preferably contains at least one organic silicon compound (a1) selected from silanes having one, two or three silicon atoms, the organic silicon compound comprising one or more hydroxyl groups and/or hydrolyzable groups per molecule.

These organic silicon compounds (a1) or organic silanes contained in the agent (a) are reactive compounds.

Organic silicon compounds, alternatively also referred to as organosilicon compounds, are compounds that either have a direct silicon-carbon bond (Si-C) or in which the carbon is linked to the silicon atom via an oxygen, nitrogen or sulfur atom is. The organic silicon compounds of the present invention are compounds containing one to three silicon atoms. The organic silicon compounds particularly preferably contain one or two silicon atoms.

According to the IUPAC rules, the term silane stands for a group of chemical compounds based on a silicon backbone and hydrogen. In the case of organic silanes, some or all of the hydrogen atoms are replaced by organic groups such as (substituted) alkyl groups and/or alkoxy groups. Some of the hydrogen atoms in the organic silanes can also be replaced by hydroxyl groups.

In a particularly preferred embodiment, a method is characterized by the use of an agent (a) on the keratin material, the agent (a) containing at least one organic silicon compound (a1) selected from silanes having one, two or three silicon atoms , wherein the organic silicon compound further comprises one or more hydroxyl groups or hydrolyzable groups per molecule.

In a particularly preferred embodiment, a method is characterized by the use of an agent (a) on the keratin material, the agent (a) containing at least one organic silicon compound (a1) selected from silanes having one, two or three silicon atoms wherein the organic silicon compound further comprises one or more basic chemical functions and one or more hydroxyl groups or hydrolyzable groups per molecule.

This basic group or basic chemical function can be, for example, an amino group, an alkylamino group, a dialkylamino group or a trialkylamino group, which is preferably linked to a silicon atom via a linker. The basic group is preferably an amino group, a C ₁ -C ₆ -alkylamino group or a di(C ₁ -C ₆ )alkylamino group.

The hydrolyzable group or groups is preferably a C ₁ -C ₆ alkoxy group, in particular an ethoxy group or a methoxy group. It is preferred if the hydrolyzable group is bonded directly to the silicon atom. If, for example, the hydrolyzable group is an ethoxy group, the organic silicon compound preferably contains a structural unit R'R"R"'Si-O-CH2-CH3. The radicals R', R'' and R''' represent the three remaining free valences of the silicon atom.

A very particularly preferred method is characterized in that agent (a) contains at least one organic silicon compound selected from silanes having one, two or three silicon atoms, the organic silicon compound preferably having one or more basic chemical functions and one or more hydroxyl groups or hydrolyzable groups per molecule.

Very particularly good results could be obtained if the agent (a) contains at least one organic silicon compound (a1) of the formula (I) and/or (II).

The compounds of formulas (I) and (II) are organic silicon compounds selected from silanes having one, two or three silicon atoms, the organic silicon compound comprising one or more hydroxyl groups and/or hydrolyzable groups per molecule.

• - R₁, R₂ unabhängig voneinander für ein Wasserstoffatom oder eine C₁-C₆-Alkylgruppe stehen,
• - L für eine lineare oder verzweigte, zweiwertige C₁-C₂₀-Alkylengruppe steht,
• - R₃ für ein Wasserstoffatom oder eine C₁-C₆-Alkylgruppe steht,
• - R₄ für eine C₁-C₆-Alkylgruppe steht
• - a, für eine ganze Zahl von 1 bis 3 steht, und
• - b für die ganze Zahl 3 - a steht,

(R₅O)_c(R₆)_dSi-(A)_e-[NR₇-(A')]_f-[O-(A'')_g-[NR₈-(A''')]_h-Si(R₆')_d'(OR₅')c' (II), wobei

• - R5, R5`, R5" unabhängig voneinander für ein Wasserstoffatom oder für eine C₁-C₆-Alkylgruppe stehen,
• - R6, R6' und R6" unabhängig voneinander für eine C₁-C₆-Alkylgruppe stehen,
• - A, A', A'', A''' und A'''' unabhängig voneinander für eine lineare oder verzweigte, zweiwertige C₁-C₂₀-Alkylengruppe stehen,
• - R₇ und R₈ unabhängig voneinander für ein Wasserstoffatom, eine C₁-C₆-Alkylgruppe, eine Hydroxy-C₁-C₆-alkylgruppe, eine C₂-C₆-Alkenylgruppe, eine Amino-C₁-C₆-alkyl-gruppe oder eine Gruppierung der Formel (III) stehen

- (A'''')-Si(R₆'')_d''(OR₅'')_c'' (III),

• - c, für eine ganze Zahl von 1 bis 3 steht,
• - d für die ganze Zahl 3 - c steht,
• - c` für eine ganze Zahl von 1 bis 3 steht,
• - d' für die ganze Zahl 3 - c' steht,
• - c'' für eine ganze Zahl von 1 bis 3 steht,
• - d'' für die ganze Zahl 3 - c'' steht,
• - e für 0 oder 1 steht,
• - f für 0 oder 1 steht,
• - g für 0 oder 1 steht,
• - h für 0 oder 1 steht,
• - mit der Maßgabe, dass mindestens einer der Reste aus e, f, g und h von 0 verschieden ist.

In a further particularly preferred embodiment, the method is characterized in that an agent is applied to the keratinic material (or human hair), the agent (a) containing at least one organic silicon compound (a) of the formula (I) and/or (II) contains, R ₁ R ₂ NL-Si(OR ₃ ) _a (R ₄ ) _b (I), whereby

• - R ₁ , R ₂ independently represent 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 represents a hydrogen atom or a C ₁ -C ₆ alkyl group,
• - R ₄ represents a C ₁ -C ₆ alkyl group
• - a, is an integer from 1 to 3, and
• - b stands for the integer 3 - a,

(R ₅ O) _c (R ₆ ) _d Si-(A) _e -[NR ₇ -(A')] _f -[O-(A'') _g -[NR ₈ -(A''')] _h -Si(R ₆ ') _d' (OR ₅ ')c' (II), whereby

• - R5, R5`, R5" independently represent a hydrogen atom or a C ₁ -C ₆ -alkyl group,
• - R6, R6' and R6" independently represent a C ₁ -C ₆ alkyl group,
• - A, A', A'', A''' and A'''' independently represent a linear or branched, divalent C ₁ -C ₂₀ -alkylene group,
• - R ₇ and R ₈ independently represent a hydrogen atom, a C ₁ -C ₆ alkyl group, a hydroxy C ₁ -C ₆ alkyl group, a C ₂ -C ₆ alkenyl group, an amino C ₁ -C ₆ - alkyl group or a group of formula (III).

- (A'''')-Si( _R6 '') _d ''( _OR5 '') _c '' (III),

• - c, represents an integer from 1 to 3,
• - d stands for the integer 3 - c,
• - c` is an integer from 1 to 3,
• - d' stands for the integer 3 - c',
• - c'' is an integer from 1 to 3,
• - d'' stands for the integer 3 - c'',
• - e stands for 0 or 1,
• - f stands for 0 or 1,
• - g stands for 0 or 1,
• - h stands for 0 or 1,
• - with the proviso that at least one of the radicals from e, f, g and h is different from 0.

• Beispiele für eine C₁-C₆-Alkylgruppe sind die Gruppen Methyl, Ethyl, Propyl, Isopropyl, n-Butyl, s-Butyl und t-Butyl, n-Pentyl und n-Hexyl. Propyl, Ethyl und Methyl sind bevorzugte Alkylreste. Beispiele für eine C₂-C₆-Alkenylgruppe sind Vinyl, Allyl, But-2-enyl, But-3-enyl sowie Isobutenyl, bevorzugte C₂-C₆-Alkenylreste sind Vinyl und Allyl. Bevorzugte Beispiele für eine Hydroxy-C₁-C₆-alkylgruppe sind eine Hydroxymethyl-, eine 2-Hydroxyethyl-, eine 2-Hydroxypropyl, eine 3-Hydroxypropyl-, eine 4-Hydroxybutylgruppe, eine 5-Hydroxypentyl- und eine 6-Hydroxyhexylgruppe; eine 2-Hydroxyethylgruppe ist besonders bevorzugt. Beispiele für eine Amino-C₁-C₆-alkyl-gruppe sind die Aminomethylgruppe, die 2-Aminoethylgruppe, die 3-Aminopropylgruppe. Die 2-Aminoethylgruppe ist besonders bevorzugt. Beispiele für eine lineare zweiwertige C₁-C₂₀-Alkylengruppe sind beispielsweise die Methylen-gruppe (-CH₂-), die Ethylengruppe (-CH₂-CH₂-), die Propylengruppe (-CH₂-CH₂-CH₂-) und die Butylengruppe (-CH₂-CH₂-CH₂-CH₂-). Die Propylengruppe (-CH₂-CH₂-CH₂-) ist besonders bevorzugt. Ab einer Kettenlänge von 3 C-Atomen können zweiwertige Alkylengruppen auch verzweigt sein. Beispiele für verzweigte, zweiwertige C₃-C₂₀-Alkylengruppen sind (-CH₂-CH(CH₃)-) und (-CH₂-CH(CH₃)-CH₂-).

The substituents R ₁ , R ₂ , R ₃ , R ₄ , R ₅ , R ₅ ', R ₅ ", R ₆ , R 6 ', R ₆ ", R ₇ , _{R 8 ,} L, A, A', A '', A''' and A'''' in the compounds of formula (I) and (II) are exemplified below:

• Examples of a C ₁ -C ₆ alkyl group are the groups methyl, ethyl, propyl, isopropyl, n-butyl, s-butyl and t-butyl, n-pentyl and n-hexyl. Propyl, ethyl and methyl are preferred alkyl radicals. Examples of a C ₂ -C ₆ -alkenyl group are vinyl, allyl, but-2-enyl, but-3-enyl and isobutenyl, preferred C ₂ -C ₆ -alkenyl radicals are vinyl and allyl. Preferred examples of a hydroxy-C ₁ -C ₆ -alkyl group are a hydroxymethyl, a 2-hydroxyethyl, a 2-hydroxypropyl, a 3-hydroxypropyl, a 4-hydroxybutyl group, a 5-hydroxypentyl and a 6-hydroxyhexyl group ; a 2-hydroxyethyl group is particularly preferred. Examples of an amino-C ₁ -C ₆ -alkyl group are the aminomethyl group, the 2-aminoethyl group, the 3-aminopropyl group. The 2-aminoethyl group is particularly preferred. Examples of a linear divalent C ₁ -C ₂₀ -alkylene group are, for example, the methylene group (-CH ₂ -), the ethylene group (-CH ₂ -CH ₂ -), the propylene group (-CH ₂ -CH ₂ -CH ₂ - ) and the butylene group (-CH ₂ -CH ₂ -CH ₂ -CH ₂ -). The propylene group (-CH ₂ -CH ₂ -CH ₂ -) is particularly preferred. From a chain length of 3 carbon atoms, divalent alkylene groups can also be branched. Examples of branched divalent C ₃ -C ₂₀ alkylene groups are (-CH ₂ -CH(CH ₃ )-) and (-CH ₂ -CH(CH ₃ )-CH ₂ -).

In the organic silicon compounds of formula (I) R ₁ R ₂ NL-Si(OR ₃ ) _a (R ₄ ) _b (I), the radicals R ₁ and R ₂ independently represent a hydrogen atom or a C ₁ -C ₆ -alkyl group. The radicals R ₁ and R ₂ are very particularly preferably both hydrogen atoms.

In the middle part of the organic silicon compound is the structural unit or the linker -L- which stands for a linear or branched, divalent C ₁ -C ₂₀ -alkylene group.

A divalent C ₁ -C ₂₀ alkylene group may alternatively also be referred to as a divalent or divalent C ₁ -C ₂₀ alkylene group, by which is meant that each moiety L can form two bonds. One bond is from the amino group R1 R2N to the linker L and the second bond is between the linker L and the silicon atom.

-L- preferably represents a linear, divalent (ie divalent) C ₁ -C ₂₀ -alkylene group. More preferably -L- is a linear divalent C ₁ -C ₆ alkylene group. More preferably -L- is a methylene group (-CH ₂ -), an ethylene group (-CH ₂ -CH ₂ -), a propylene group (-CH ₂ -CH ₂ -CH ₂ -) or a butylene group (-CH ₂ - _CH2 - _CH2 - _CH2- ). L is very particularly preferably a propylene group (-CH ₂ -CH ₂ -CH ₂ -).

The linear propylene group (-CH ₂ -CH ₂ -CH ₂ -) can alternatively also be referred to as propane-1,3-diyl group.

The organic silicon compounds of formula (I) R ₁ R ₂ NL-Si(OR ₃ ) _a (R ₄ ) _b (I), each carry the silicon-containing grouping —Si(OR ₃ ) _a (R ₄ ) _b at one end.

In the terminal structural unit -Si(OR ₃ ) _a (R ₄ ) _b the group R ₃ represents a hydrogen atom or a C ₁ -C ₆ alkyl group and the group R ₄ represents a C ₁ -C ₆ alkyl group. R ₃ and R ₄ are particularly preferably, independently of one another, a methyl group or an ethyl group.

Here, a represents an integer of 1 to 3, and b represents an integer of 3 - a. If a is the number 3, then b is equal to 0. If a is the number 2, then b is equal to 1. If a is the number 1, then b is equal to 2.

Particularly resistant films could be produced if the agent (a) contains at least one organic silicon compound (a1) of the formula (I) in which the radicals R ₃ , R ₄ independently represent a methyl group or an ethyl group.

When using the method for dyeing keratinic material could be obtained analogously then colorations with the best wash fastness if the agent (a) contains at least one organic silicon compound of the formula (I) in which the radicals R ₃ , R ₄ independently for a methyl group or an ethyl group.

Furthermore, it was possible to obtain dyeings with the best fastness to washing if agent (a) contains at least one organic silicon compound of the formula (I) in which the radical a represents the number 3. In this case, the remainder b stands for the number 0.

• - R₃, R₄ unabhängig voneinander für eine Methylgruppe oder für eine Ethylgruppe stehen und
• - a für die Zahl 3 steht und
• - b für die Zahl 0 steht.

In a further preferred embodiment, the agent (a) used in the process is characterized in that it contains at least one organic silicon compound (a1) of the formula (I), where

• - R ₃ , R ₄ independently represent a methyl group or an ethyl group and
• - a stands for the number 3 and
• - b stands for the number 0.

• - R₁, R₂ beide für ein Wasserstoffatom stehen, und
• - L für eine lineare, zweiwertige C₁-C₆-Alkylengruppe, bevorzugt für eine Propylengruppe (-CH₂-CH₂-CH₂-) oder für eine Ethylengruppe (-CH₂-CH₂-), steht,
• - R₃ für ein Wasserstoffatom, eine Ethylgruppe oder eine Methylgruppe steht,
• - R₄ für eine Methylgruppe oder für eine Ethylgruppe steht,
• - a für die Zahl 3 steht und
• - b für die Zahl 0 steht.

In a further preferred embodiment, a method is characterized in that the agent (a) contains at least one organic silicon compound (a1) of the formula (I), R ₁ R ₂ NL-Si(OR ₃ ) _a (R ₄ ) _b (I), whereby

• - R ₁ , R ₂ both represent a hydrogen atom, and
• - 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 -),
• - R ₃ represents a hydrogen atom, an ethyl group or a methyl group,
• - R ₄ represents a methyl group or an ethyl group,
• - a stands for the number 3 and
• - b stands for the number 0.

- (3-Aminopropyl)trimethoxysilan

- 1-(3-Aminopropyl)silantriol

- (2-Aminoethyl)triethoxysilan

- (2-Aminoethyl)trimethoxysilan

1-(2-Aminoethyl)silantriol

- (3-Dimethylaminopropyl)triethoxysilan

- (3-Dimethylaminopropyl)trimethoxysilan

1-(3-Dimethylaminopropyl)silantriol

- (2-Dimethylaminoethyl)triethoxysilan.

- (2-Dimethylaminoethyl)trimethoxysilan und

1-(2-Dimethylaminoethyl)silantriol

Organic silicon compounds of the formula (I) which are particularly suitable for solving the problem of the invention are --(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

1-(2-dimethylaminoethyl)silanetriol

• - (3-Aminopropyl)triethoxysilan
• - (3-Aminopropyl)trimethoxysilan
• - 1-(3-Aminopropyl)silantriol
• - (2-Aminoethyl)triethoxysilan
• - (2-Aminoethyl)trimethoxysilan
• - 1-(2-Aminoethyl)silantriol
• - (3-Dimethylaminopropyl)triethoxysilan
• - (3-Dimethylaminopropyl)trimethoxysilan
• - 1-(3-Dimethylaminopropyl)silantriol
• - (2-Dimethylaminoethyl)triethoxysilan.
• - (2-Dimethylaminoethyl)trimethoxysilan und/oder
• - 1-(2-Dimethylaminoethyl)silantriol.

In a further preferred embodiment, a method is characterized in that the agent (a) contains at least one organic silicon compound (a1) which is selected from the group consisting 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 aforementioned organic silicon compounds of the formula (I) are commercially available. For example, (3-aminopropyl)trimethoxysilane is commercially available from Sigma-Aldrich. (3-Aminopropyl)triethoxysilane is also commercially available from Sigma-Aldrich.

In a further embodiment, the agent contains at least one organic silicon compound (a1) of the formula (II) (R ₅ O) _c (R ₆ ) _d Si-(A) _e -[NR ₇ -(A')] _f -[O-(A'')] _g -[NR ₈ -(A''') ] _h -Si(R ₆ ') _d' (OR ₅ ') _c' (II).

The organosilicon compounds of the formula (II) carry the silicon-containing groups (R ₅ O) _c (R ₆ ) _d Si— and —Si(R ₆ ′) _d , (OR ₅ ′) _c ′ at both of their ends.

In the central part of the molecule of formula (II) there are the groups -(A) _e - and -[NR ₇ -(A')] _f - and -[O-(A'')] _g - and -[NR ₈ -(A''')] _h -In this case, each of the radicals e, f, g and h can independently represent the number 0 or 1, with the proviso that at least one of the radicals e, f, g and h of 0 is different. In other words, an organic silicon compound of the formula (II) contains at least one group from the group consisting of -(A)- and -[NR ₇ -(A')]- and -[O-(A'')]- and - [NR ₈ -(A''')]-

In the two terminal structural units (R ₅ O) _c (R ₆ ) _d Si- and - Si(R ₆ ') _d ,(OR ₅ ')c', the radicals R5, R5`, R5" independently represent a hydrogen atom or a C ₁ -C ₆ -alkyl group. The radicals R6, R6' and R6" independently represent a C ₁ -C ₆ -alkyl group.

Here, c is an integer of 1 to 3, and d is an integer of 3 - c. If c is the number 3, then d is equal to 0. If c is the number 2, then d is equal to 1. If c is the number 1, then d is equal to 2.

Similarly, c` represents an integer from 1 to 3, and d' represents the integer 3 - c'. If c' is the number 3, then d' is 0. If c` is the number 2, then d' is 1. If c` is the number 1, then d' is 2.

Films with the highest stability or dyeings with the best fastness to washing could be obtained if the radicals c and c` both stand for the number 3. In this case, d and d' both represent the number 0.

• - R5 und R5' unabhängig voneinander für eine Methylgruppe oder eine Ethylgruppe stehen,
• - c und c` beide für die Zahl 3 stehen und
• - d und d' beide für die Zahl 0 stehen.

In a further preferred embodiment, a method is characterized in that the agent (a) contains at least one organic silicon compound (a1) of the formula (II), (R ₅ O) _c (R ₆ ) _d Si-(A) _e -[NR ₇ -(A')] _f -[O-(A'')] _g -[NR ₈ -(A''') ] _h -Si(R ₆ ') _d' (OR ₅ ') _c' (II), whereby

• - R5 and R5' independently represent a methyl group or an ethyl group,
• - c and c` both stand for the number 3 and
• - d and d' both stand for the number 0.

If c and c` both represent the number 3 and d and d' both represent the number 0, the organic silicon compounds according to the invention correspond to the formula (IIa) (R ₅ O) ₃ Si-(A) _e -[NR ₇ -(A')] _f -[O-(A'')] _g -[NR ₈ -(A''')] _h -Si( _OR5 ') ₃ (IIa).

The radicals e, f, g and h can independently represent the number 0 or 1, where at least one radical from e, f, g and h is different from zero. The abbreviations e, f, g and h therefore define which of the groups -(A) _e - and -[NR ₇ -(A')] _f - and -[O-(A'')] _g - and -[NR ₈ -(A''')] _h -are located in the central part of the organosilicon compound of formula (II).

In this context, the presence of certain groups has proven to be particularly advantageous with regard to increasing wash fastness. Particularly good results can be obtained when at least two of the radicals e, f, g and h are 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.

When e and f both represent the number 1 and g and h both represent the number 0, the organic silicon compounds according to the invention correspond to the formula (IIb) (R ₅ O) _c (R 6 ) _d Si-(A)-[NR ₇ -(A')]-Si(R ₆ ') _d' (OR ₅ ') _c' (IIb).

The radicals A, A', A'', A''' and A'''' independently represent a linear or branched, divalent C ₁ -C ₂₀ -alkylene group. The radicals A, A′, A″, A″″ and A″″ independently of one another preferably represent a linear, divalent C ₁ -C ₂₀ -alkylene group. More preferably, the radicals A, A′, A″, A″″ and A″″ independently represent a linear divalent C ₁ -C ₆ -alkylene group. The radicals A, A′, A″, A″″ and A″″ are particularly preferably, independently of one another, a methylene group (-CH ₂ -), an ethylene group (-CH ₂ -CH ₂ -), a propylene group (-CH ₂ -CH ₂ -CH ₂ -) or a butylene group (-CH ₂ -CH ₂ -CH ₂ -CH ₂ -). The radicals A, A′, A″, A″″ and A″″ are very particularly preferably a propylene group (-CH ₂ -CH ₂ -CH ₂ -).

The divalent C ₁ -C ₂₀ alkylene group may alternatively also be referred to as a divalent or divalent C ₁ -C ₂₀ alkylene group, by which is meant that each moiety A, A', A'', A''' and A'''' can form two bonds.

The linear propylene group (-CH ₂ -CH ₂ -CH ₂ -) can alternatively also be referred to as propane-1,3-diyl group.

When f is the number 1, the organic silicon compound of formula (II) contains a structural moiety -[NR ₇ -(A')]-.
When h is the number 1, the organic silicon compound of formula (II) contains a structural moiety -[NR ₈ -(A''')]-.

Here, the radicals R ₇ and R ₈ independently stand for a hydrogen atom, a C ₁ -C ₆ -alkyl group, a hydroxy-C ₁ -C ₆ -alkyl group, a C ₂ -C ₆ -alkenyl group, an amino-C ₁ - C ₆ alkyl group or a group of formula (III) - (A'''')-Si( _R6 '') _d ''( _OR5 '') _c '' (III).

The radicals R7 and R8 are very particularly preferably, independently of one another, a hydrogen atom, a methyl group, a 2-hydroxyethyl group, a 2-alkenyl group, a 2-aminoethyl group or a group of the formula (III).

When f is 1 and h is 0, the organic silicon compound contains the [NR ₇ -(A')] moiety but not the -[NR ₈ -(A''') moiety. ]. If the radical R7 stands for a group of the formula (III), the agent (a) contains an organic silicon compound with 3 reactive silane groups.

• - e und f beide für die Zahl 1 stehen,
• - g und h beide für die Zahl 0 stehen,
• - A und A` unabhängig voneinander für eine lineare, zweiwertige C₁-C₆-Alkylengruppe stehen und
• - R7 für ein Wasserstoffatom, eine Methylgruppe, eine 2-Hydroxyethylgruppe, eine 2-Alkenylgruppe, eine 2-Aminoethylgruppe oder für eine Gruppierung der Formel (III) steht.

In a further preferred embodiment, a method is characterized in that the agent (a) contains at least one organic silicon compound (a1) of the formula (II), (R ₅ O) _c (R ₆ ) _d Si-(A) _e -[NR ₇ -(A')] _f -[O-(A'')] _g -[NR ₈ -(A''') ] _h -Si(R ₆ ') _d' (OR ₅ ') _c' (II), whereby

• - e and f both stand for the number 1,
• - g and h both stand for the number 0,
• - A and A` independently represent a linear, divalent C ₁ -C ₆ -alkylene group and
• - R7 represents a hydrogen atom, a methyl group, a 2-hydroxyethyl group, a 2-alkenyl group, a 2-aminoethyl group or a group of formula (III).

• - e und f beide für die Zahl 1 stehen,
• - g und h beide für die Zahl 0 stehen,
• - A und A` unabhängig voneinander für eine Methylengruppe (-CH₂-), eine Ethylengruppe (-CH₂-CH₂-) oder eine Propylengruppe (-CH₂-CH₂-CH₂) stehen, und
• - R7 für ein Wasserstoffatom, eine Methylgruppe, eine 2-Hydroxyethylgruppe, eine 2-Alkenylgruppe, eine 2-Aminoethylgruppe oder für eine Gruppierung der Formel (III) steht.

In a further preferred embodiment, a method is characterized in that the agent (a) contains at least one organic silicon compound of the formula (II), where

• - e and f both stand for the number 1,
• - g and h both stand for the number 0,
• - A and A` independently represent a methylene group (-CH ₂ -), an ethylene group (-CH ₂ -CH ₂ -) or a propylene group (-CH ₂ -CH ₂ -CH ₂ ), and
• - R7 represents a hydrogen atom, a methyl group, a 2-hydroxyethyl group, a 2-alkenyl group, a 2-aminoethyl group or a group of formula (III).

- 3-(Triethoxysilyl)-N-[3-(triethoxysilyl)propyl]-1-propanamin

- N-Methyl-3-(trimethoxysilyl)-N-[3-(trimethoxysilyl)propyl]-1-propanamin

- N-Methyl-3-(triethoxysilyl)-N-[3-(triethoxysilyl)propyl]-1-propanamin

- 2-[Bis[3-(trimethoxysilyl)propyl]amino]-ethanol

- 2-[Bis[3-(triethoxysilyl)propyl]amino]-ethanol

- 3-(Trimethoxysilyl)-N,N-bis[3-(trimethoxysilyl)propyl]-1-propanamin

- 3-(Triethoxysilyl)-N,N-bis[3-(triethoxysilyl)propyl]-1-propanamin

- N1 ,N1-Bis[3-(trimethoxysilyl)propyl]-1 ,2-ethanediamin,

- N1 ,N1-Bis[3-(triethoxysilyl)propyl]-1 ,2-ethandiamin,

- N,N-Bis[3-(trimethoxysilyl)propyl]-2-propen-1-amin

- N,N-Bis[3-(triethoxysilyl)propyl]-2-propen-1-amin

Organic silicon compounds of the formula (II) which are highly suitable for achieving the object of the invention are -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

- N,N-bis[3-(triethoxysilyl)propyl]-2-propen-1-amine

The aforementioned organic silicon compounds of the formula (II) are commercially available. For example, bis(trimethoxysilylpropyl)amine with CAS number 82985-35-1 can be purchased from Sigma-Aldrich.

For example, bis[3-(triethoxysilyl)propyl]amine with CAS number 13497-18-2 is commercially available from Sigma-Aldrich.

Alternatively, N-methyl-3-(trimethoxysilyl)-N-[3-(trimethoxysilyl)propyl]-1-propanamine is referred to as bis(3-trimethoxysilylpropyl)-N-methylamine and is commercially available from Sigma-Aldrich or Fluorochem .

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

• - 3-(Trimethoxysilyl)-N-[3-(trimethoxysilyl)propyl]-1-propanamin
• - 3-(Triethoxysilyl)-N-[3-(triethoxysilyl)propyl]-1-propanamin
• - N-Methyl-3-(trimethoxysilyl)-N-[3-(trimethoxysilyl)propyl]-1-propanamin
• - N-Methyl-3-(triethoxysilyl)-N-[3-(triethoxysilyl)propyl]-1-propanamin
• - 2-[Bis[3-(trimethoxysilyl)propyl]amino]-ethanol
• - 2-[Bis[3-(triethoxysilyl)propyl]amino]-ethanol
• - 3-(Trimethoxysilyl)-N,N-bis[3-(trimethoxysilyl)propyl]-1-Propanamin
• - 3-(Triethoxysilyl)-N,N-bis[3-(triethoxysilyl)propyl]-1-Propanamin
• - N1,N1-Bis[3-(trimethoxysilyl)propyl]-1,2-Ethanediamin,
• - N1,N1-Bis[3-(triethoxysilyl)propyl]-1,2-Ethanediamin,
• - N,N-Bis[3-(trimethoxysilyl)propyl]-2-Propen-1-amin und/oder
• - N,N-Bis[3-(triethoxysilyl)propyl]-2-Propen-1-amin.

In a further preferred embodiment, a method is characterized in that the agent (a) contains at least one organic silicon compound (a1) which is selected from the group consisting 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.

In further tests, in particular coloring tests, it has also turned out to be particularly advantageous if the agent (a) used in the method on the keratinic material contains at least one organic silicon compound of the formula (IV). _R9 Si( _OR10 ) _k ( _R11 )m (IV).

The compounds of formula (IV) are organosilicon compounds selected from silanes having one, two or three silicon atoms, where the organosilicon compound comprises one or more hydroxyl groups and/or hydrolyzable groups per molecule.

• - R₉ für eine C₁-C₁₈-Alkylgruppe steht,
• - R₁₀ für ein Wasserstoffatom oder eine C₁-C₆-Alkylgruppe steht,
• - R₁₁ für eine C₁-C₆-Alkylgruppe steht
• - k für eine ganze Zahl von 1 bis 3 steht, und
• - m für die ganze Zahl 3 - k steht.

The organic silicon compounds of the formula (IV) can also be referred to as silanes of the alkylalkoxysilane or alkylhydroxysilane type, _R9 Si( _OR10 ) _k ( _R11 )m (IV), whereby

• - R ₉ represents a C ₁ -C ₁₈ alkyl group,
• - R ₁₀ represents a hydrogen atom or a C ₁ -C ₆ alkyl group,
• - R ₁₁ represents a C ₁ -C ₆ alkyl group
• - k is an integer from 1 to 3, and
• - m is the integer 3 - k.

• - R₉ für eine C₁-C₁₈-Alkylgruppe steht,
• - R₁₀ für ein Wasserstoffatom oder eine C₁-C₆-Alkylgruppe steht,
• - R₁₁ für eine C₁-C₆-Alkylgruppe steht
• - k für eine ganze Zahl von 1 bis 3 steht, und
• - m für die ganze Zahl 3 - k steht.

In a further preferred embodiment, the process is characterized in that the agent (a) contains at least one organic silicon compound (a1) of the formula (IV). _R9 Si( _OR10 ) _k ( _R11 )m (IV), whereby

• - R ₉ represents a C ₁ -C ₁₈ alkyl group,
• - R ₁₀ represents a hydrogen atom or a C ₁ -C ₆ alkyl group,
• - R ₁₁ represents a C ₁ -C ₆ alkyl group
• - k is an integer from 1 to 3, and
• - m is the integer 3 - k.

• - R₉ für eine C₁-C₁₈-Alkylgruppe steht,
• - R₁₀ für ein Wasserstoffatom oder eine C₁-C₆-Alkylgruppe steht,
• - R₁₁ für eine C₁-C₆-Alkylgruppe steht
• - k für eine ganze Zahl von 1 bis 3 steht, und
• - m für die ganze Zahl 3 - k steht.

In a further preferred embodiment, a method is characterized in that the agent (a) contains at least one further organic silicon compound of the formula (IV) in addition to the organic silicon compound or compounds of the formula (I). R ₉ Si(OR ₁₀ ) _k (R ₁₁ ) _m (IV), whereby

• - R ₉ represents a C ₁ -C ₁₈ alkyl group,
• - R ₁₀ represents a hydrogen atom or a C ₁ -C ₆ alkyl group,
• - R ₁₁ represents a C ₁ -C ₆ alkyl group
• - k is an integer from 1 to 3, and
• - m is the integer 3 - k.

• - R₉ für eine C₁-C₁₈-Alkylgruppe steht,
• - R₁₀ für ein Wasserstoffatom oder eine C₁-C₆-Alkylgruppe steht,
• - R₁₁ für eine C₁-C₆-Alkylgruppe steht
• - k für eine ganze Zahl von 1 bis 3 steht, und
• - m für die ganze Zahl 3 - k steht.

In a further preferred embodiment, a method is characterized in that agent (a) contains at least one further organic silicon compound of formula (IV) in addition to the organic silicon compound or compounds of formula (II). R ₉ Si(OR ₁₀ ) _k (R ₁₁ ) _m (IV), whereby

• - R ₉ represents a C ₁ -C ₁₈ alkyl group,
• - R ₁₀ represents a hydrogen atom or a C ₁ -C ₆ alkyl group,
• - R ₁₁ represents a C ₁ -C ₆ alkyl group
• - k is an integer from 1 to 3, and
• - m is the integer 3 - k.

• - R₉ für eine C₁-C₁₈-Alkylgruppe steht,
• - R₁₀ für ein Wasserstoffatom oder eine C₁-C₆-Alkylgruppe steht,
• - R₁₁ für eine C₁-C₆-Alkylgruppe steht
• - k für eine ganze Zahl von 1 bis 3 steht, und
• - m für die ganze Zahl 3 - k steht.

In a further preferred embodiment, a method is characterized in that agent (a) contains at least one further organic silicon compound of formula (IV) in addition to the organic silicon compound or compounds of formula (I) and/or (II). _R9 Si( _OR10 ) _k ( _R11 )m (IV), whereby

• - R ₉ represents a C ₁ -C ₁₈ alkyl group,
• - R ₁₀ represents a hydrogen atom or a C ₁ -C ₆ alkyl group,
• - R ₁₁ represents a C ₁ -C ₆ alkyl group
• - k is an integer from 1 to 3, and
• - m is the integer 3 - k.

In the organic silicon compounds of the formula (IV), the radical R ₉ is a C ₁ -C ₁₈ -alkyl group. This C ₁ -C ₁₈ alkyl group is saturated and can be linear or branched. R ₉ is preferably a linear C ₁ -C ₁₈ alkyl group. R ₉ preferably 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. R ₉ is particularly preferably a methyl group, an ethyl group, an n-hexyl group or an n-octyl group.

In the organic silicon compounds of the form (IV), the radical R ₁₀ is a hydrogen atom or a C ₁ -C ₆ -alkyl group. R ₁₀ particularly preferably represents a methyl group or an ethyl group.

In the organic silicon compounds of the form (IV), the radical R ₁₁ is a C ₁ -C ₆ -alkyl group. R ₁₁ particularly preferably represents a methyl group or an ethyl group.

Further, k is an integer of 1 to 3, and m is an integer of 3 - k. If k is the number 3, then m is equal to 0. If k is the number 2, then m is equal to 1. If k is the number 1, then m is equal to 2.

Particularly stable films, i.e. dyeings with particularly good fastness to washing, could be obtained if an agent (a) was used in the process which contains at least one organic silicon compound (a1) of the formula (IV) in which the radical k is the number 3 . In this case, the remainder m stands for the number 0.

- Methyltriethoxysilan

- Ethyltrimethoxysilan

- Ethyltriethoxysilan

- n-Hexyltrimethoxysilan

- n-Hexyltriethoxysilan

- n-Octyltrimethoxysilan

- n-Octyltriethoxysilan

- n-Dodecyltrimethoxysilan und/oder

- n-Dodecyltriethoxysilan.

• n-Octadecyltrimethoxysilan und/oder n-Octadecyltriethoxysilan.

Organic silicon compounds of the formula (IV) which are particularly suitable for solving the problem of the invention are methyltrimethoxysilane

- methyltriethoxysilane

- ethyltrimethoxysilane

- ethyltriethoxysilane

- n-hexyltrimethoxysilane

- n-hexyltriethoxysilane

- n-octyltrimethoxysilane

- n-octyltriethoxysilane

- n-dodecyltrimethoxysilane and/or

- n-dodecyltriethoxysilane.

• n-octadecyltrimethoxysilane and/or n-octadecyltriethoxysilane.

• - Methyltrimethoxysilan
• - Methyltriethoxysilan
• - Ethyltrimethoxysilan
• - Ethyltriethoxysilan
• - Propyltrimethoxysilan
• - Propyltriethoxysilan
• - Hexyltrimethoxysilan
• - Hexyltriethoxysilan
• - Octyltrimethoxysilan
• - Octyltriethoxysilan
• - Dodecyltrimethoxysilan
• - Dodecyltriethoxysilan
• - Octadecyltrimethoxysilan und/oder
• - Octadecyltriethoxysilan.

In a further preferred embodiment, a method is characterized in that the agent (a) contains at least one organic silicon compound (a1) of the formula (IV), which is selected from the group consisting of

• - methyltrimethoxysilane
• - methyltriethoxysilane
• - ethyltrimethoxysilane
• - ethyltriethoxysilane
• - propyltrimethoxysilane
• - propyltriethoxysilane
• - hexyltrimethoxysilane
• - hexyltriethoxysilane
• - octyltrimethoxysilane
• - octyltriethoxysilane
• - dodecyltrimethoxysilane
• - Dodecyltriethoxysilane
• - octadecyltrimethoxysilane and/or
• - octadecyltriethoxysilane.

The organic silicon compounds described above are reactive compounds. In this context, it has been found to be preferred if agent (a)—based on the total weight of agent (a)—prefers one or more organic silicon compounds (a1) in a total amount of from 0.1 to 20% by weight 1 to 15% by weight and more preferably 2 to 8% by weight.

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

In order to achieve particularly good dyeing results, it is particularly advantageous to use the organic silicon compounds of the formula (I) and/or (II) in specific amounts, on average (a). Agent (a) particularly preferably contains one or more organic silicon compounds of the formula (I) and/or (II) in a total amount of from 0.1 to 10% by weight, based on the total weight of agent (a). 0.5 to 5% by weight and more preferably 0.5 to 3% by weight.

In a further preferred embodiment, a method is characterized in that the agent (a) - based on the total weight of the agent (a) - one or more organic silicon compounds of the formula (I) and / or (II) in a total amount of 0, 1 to 10% by weight, preferably 0.5 to 5% by weight and particularly preferably 0.5 to 3% by weight.

Furthermore, it has been found to be very particularly preferred if the organic silicon compound or compounds of the formula (IV) are also present in the average (a) in certain ranges. Agent (a) particularly preferably contains - based on the total weight of agent (a) - one or more organic silicon compounds of the formula (IV) in a total amount of 0.1 to 20% by weight, preferably 2 to 15% by weight. % and more preferably 4 to 9% by weight.

In a further preferred embodiment, a process is characterized in that agent (a) - based on the total weight of agent (a) - contains one or more organic silicon compounds of the formula (IV) in a total amount of from 0.1 to 20% by weight. %, preferably 2 to 15% by weight and particularly preferably 3.2 to 10% by weight.

In the course of the work leading to this invention, it turned out that particularly stable and uniform films could be obtained on the keratinic material even if the agent (a) contains two structurally different organic silicon compounds.

In a further preferred embodiment, a method is characterized in that agent (a) contains at least two organic silicon compounds which are structurally different from one another.

In a preferred embodiment, a method is characterized in that an agent (a) which contains at least one organic silicon compound of the formula (I) and at least one organic silicon compound of the formula (IV) is applied to the keratinic material.

In an explicitly very particularly preferred embodiment, a method is characterized in that an agent (a) containing at least one organic silicon compound of the formula (I) selected from the group consisting of (3-aminopropyl)triethoxysilane and (3-aminopropyl)trimethoxysilane, and additionally contains at least one organic silicon compound of formula (IV) selected from the group consisting of methyltrimethoxysilane, methyltriethoxysilane, ethyltrimethoxysilane, ethyltriethoxysilane, propyltrimethoxysilane, propyltriethoxysilane, hexyltrimethoxysilane and hexyltriethoxysilane.

• - 0,5 bis 5 Gew.-% mindestens einer ersten organischen Siliciumverbindung (a1) die ausgewählt ist aus der Gruppe aus (3-Aminopropyl)trimethoxysilan, (3-Aminopropyl)triethoxysilan, (2-Aminoethyl)trimethoxysilan, (2-Aminoethyl)triethoxysilan, (3-Dimethylaminopropyl)trimethoxysilan, (3-Dimethylaminopropyl)triethoxysilan (2-Dimethylaminoethyl)trimethoxysilan und (2-Dimethylaminoethyl)triethoxysilan, und
• - 3,2 bis 10 Gew.-% mindestens einer zweiten organischen Siliciumverbindung (a1) die ausgewählt ist aus der Gruppe aus Methyltrimethoxysilan, Methyltriethoxysilan, Ethyltrimethoxysilan, Ethyltriethoxysilan, Propyltrimethoxysilan, Propyltriethoxysilan, Hexyltrimethoxysilan, Hexyltriethoxysilan, Octyltrimethoxysilan, Octyltriethoxysilan, Dodecyltrimethoxysilan, Dodecyltriethoxysilan, Octadecyltrimethoxysilan und Octadecyltriethoxysilan.

In a further preferred embodiment, a method is characterized in that the agent (a) - based on the total weight of the agent (a) - contains:

• - 0.5 to 5% by weight of at least one first organic silicon 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 organic silicon compound (a1) selected from the group consisting of methyltrimethoxysilane, methyltriethoxysilane, ethyltrimethoxysilane, ethyltriethoxysilane, propyltrimethoxysilane, propyltriethoxysilane, hexyltrimethoxysilane, hexyltriethoxysilane, octyltrimethoxysilane, octyltriethoxysilane, dodecyltrimethoxysilane, dodecyltriethoxysilane, octadecyltrimethoxysilane and octadecyltriethoxysilane.

In this embodiment, agent (a) contains one or more organic silicon compounds from a first group in a total amount of from 0.5 to 3% by weight. The organic silicon compounds of this first group are 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.

In this embodiment, agent (a) contains one or more organic silicon compounds from a second group in a total amount of from 3.2 to 10% by weight. The organic silicon compounds of this second group are selected from the group consisting of methyltrimethoxysilane, methyltriethoxysilane, ethyltrimethoxysilane, ethyltriethoxysilane, propyltrimethoxysilane, propyltriethoxysilane, hexyltrimethoxysilane, hexyltriethoxysilane, octyltrimethoxysilane, octyltriethoxysilane, dodecyltrimethoxysilane, dodecyltriethoxysilane, octadecyltrimethoxysilane and octadecyltriethoxysilane.

Even the addition of small amounts of water leads to hydrolysis in the case of organic silicon compounds having at least one hydrolyzable group. The hydrolysis products and/or organic silicon compounds having at least one hydroxyl group can react with one another in a condensation reaction. For this reason, the agent (a) can contain both the organosilicon compounds having at least one hydrolyzable group (a1) and their hydrolysis and/or condensation products. When using organosilicon compounds having at least one hydroxyl group, both the organosilicon compounds having at least one hydroxyl group and their condensation products can be contained in agent (a).

A condensation product is a product that is formed by reaction of at least two organic silicon compounds each having at least one hydroxyl group or hydrolyzable group per molecule with elimination of water and/or elimination of an alkanol. The condensation products can be, for example, dimers, but also trimers or oligomers, 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 monomeric organic silicon compounds to the condensation product.

Very particularly good results could be obtained if organic silicon compounds of the formula (I) and/or (II) were used in the process. Since, as already described above, hydrolysis/condensation starts even with traces of moisture, the hydrolysis and/or condensation products of the organic silicon compounds (I) and/or (II) are also included in this embodiment.

When using the agent (a) on the keratinic material, the organic silicon compound(s) (a1), which preferably comprise one or more hydroxyl groups or hydrolyzable groups per molecule, are first hydrolyzed and oligomerized or polymerized in the presence of the water. The hydrolysis products or oligomers formed in this way have a particularly high affinity for the surface of the keratin material and form a film there. If agent (a) also contains at least one coloring compound, the film formed on the keratinic material is a colored film. Subsequent to the application of agent (a), agent (b) is now applied, with the sealing reagent (b1) contained in agent (b) sealing the optionally colored film. If agent (b) also contains at least one coloring compound, depending on the type of sealing agent used, 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 coloring compound used, or by forming a second, colored film on the first, colored film, the color impression of the first film is enhanced or modified. If agent (b) does not contain any coloring compound, the colored film produced in the first step is sealed.

The successive use of agents (a) and (b) produces a coloring that is particularly resistant to external influences.

Hydroxyacetophenone (a2)

The agent (a) used in the dyeing process contains at least one hydroxyacetophenone as a component (a2) essential to the invention.

It has been shown that with the aid of a hydroxyacetophenone, the pH of the agent (a) can be kept stable in a range suitable for the reactions (hydrolysis and/or condensation) of the organic silicon compounds (a1) and for the deposition of the resulting film on the keratinic material can be set optimal range.

Hydroxyacetophenone, in particular 4-hydroxyacetophenone, is used in cosmetics as an antioxidant or antimicrobial substance. It is all the more surprising that hydroxyacetophenone can also have a pH-stabilizing effect.

In a preferred embodiment, the method is characterized in that the agent (a) contains at least one hydroxyacetophenone, including 2-hydroxyacetophenone, 3-hydroxyacetophenone, 4-hydroxyacetophenone and mixtures thereof.

It has been found particularly preferred when the hydroxyacetophenone comprises 4-hydroxyacetophenone. Even more preferred is when the hydroxyacetophenone is 4-hydroxyacetophenone.

In a particularly preferred embodiment, the method is characterized in that agent (a) contains at least one hydroxyacetophenone, including 4-hydroxyacetophenone.

4-Hydroxyacetophenone, which is sold under the trade name "Symsave® H" among others, has the CAS number 99-93-4.

It has been found to be preferable for the formation and stability of the film formed on the keratinic material when agent (a) is applied if agent (a) has an alkaline pH. The pH of the agent (a) is particularly preferably in the range from 8.5 to 12, more preferably in the range from 9 to 11.5 and particularly preferably in the range from 9.5 to 11.

In a preferred embodiment, the method is characterized in that the agent (a) has a pH in the range from 8.5 to 12, more preferably in the range from 9 to 11.5 and particularly preferably in the range from 9.5 to 11 having.

It has been found that, in particular with the aid of 4-hydroxyacetophenone, the pH of the composition (a) can be stabilized at a value in the range from 8.5 to 12, more preferably in the range from 9 to 11.5 and particularly preferably in the range from 9.5 to 11 can be adjusted.

In a very preferred embodiment, the method is characterized in that the agent (a) has a value in the range from 8.5 to 12, more preferably in the range from 9 to 11.5 and particularly preferably in the range from 9.5 out of 11 and at least one hydroxyacetophenone including 4-hydroxyacetophenone.

Very particularly good results could be obtained if the agent (a) - based on the total weight of the agent (a) - a hydroxyacetophenone in a total amount of 0.1 to 15% by weight, preferably from 0.5 to 10% by weight. -% and most preferably from 0.75 to 5% by weight.

In a very preferred embodiment, the method is characterized in that the agent (a) has a value in the range from 8.5 to 12, more preferably in the range from 9 to 11.5 and particularly preferably in the range from 9.5 out of 11 and a hydroxyacetophenone comprising 4-hydroxyacetophenone, the total amount of hydroxyacetophenone being from 0.1 to 15% by weight, preferably from 0.5 to 10% by weight and most preferably from 0.75 to 5% by weight. -%, based in each case on the total weight of the agent (a), is.

Medium (b)

The method for treating keratin material includes not only the use of agent (a) but also the use of agent (b). The agent (b) used in the method is characterized in that it contains at least one sealing reagent (b1).

Agent (b) is an after-treatment agent, and the application of agent (b) to the keratinic material treated with agent (a) results in the colorations achieved in the process being made more durable. In particular, the use of agent (b) can improve the fastness to washing and the fastness to rubbing of the dyeings obtained in the process.

It is preferred that the sealing agent comprises a compound selected from the group consisting of film-forming polymers, alkalizing agents, acidifying agents and mixtures thereof.

It can be preferred that the sealing agent (b1) comprises a film-forming polymer.

Polymers are understood to be macromolecules with a molecular weight of at least 1000 g/mol, preferably at least 2500 g/mol, particularly preferably at least 5000 g/mol, which consist of identical, repeating organic units. The polymers of the present invention can be synthetically produced polymers produced by the polymerization of one type of monomer or by the polymerization of different types of monomers which are structurally different from one another. If the polymer is made by polymerizing one type of monomer, it is called a homo-polymer. If structurally different types of monomers are used in the polymerization, the resulting polymer is referred to as a copolymer.

The maximum molecular weight of the polymer depends on the degree of polymerization (number of polymerized monomers) and the batch size and is also determined by the polymerization method. For the purposes of the present invention, it is preferred if the maximum molecular weight of the film-forming polymer as sealing agent (b1) is no more than 10 ⁷ g/mol, preferably no more than 10 ⁶ g/mol and particularly preferably no more than 10 ⁵ g/mol amounts to.

For the purposes of the invention, a film-forming polymer is a polymer which is able to form a film on a substrate, for example on a keratin material, a keratin fiber or a coated keratin fiber. The formation of a film can be demonstrated, for example, by examining the keratinic material treated with the polymer under a microscope.

The film-forming polymers in the agent (b) can be hydrophilic or hydrophobic.

In a first embodiment, it may be preferable to use at least one hydrophobic, film-forming polymer as sealing agent (b1) on average (b).

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

The water solubility of the film-forming hydrophobic polymer can be determined, for example, in the following way. 1 g of the polymer is placed in a beaker. Water is made up to 100 g. A stir bar is added and the mixture is warmed to 25°C on a magnetic stirrer with stirring. Stir for 60 minutes. The aqueous mixture is then assessed visually. If the polymer-water mixture cannot be assessed visually due to a high level of turbidity in the mixture, the mixture is filtered. If some undissolved polymer remains on the filter paper, the solubility of the polymer is less than 1% by weight.

Mention may be made here in particular of polymers of the acrylic acid type, polyurethanes, polyesters, polyamides, polyureas, cellulosic polymers, nitrocellulose polymers, silicone polymers, polymers of the acrylamide type and polyisoprenes .

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 methacrylic acid amide copolymers, vinylpyrrolidone copolymers, vinyl alcohol copolymers, vinyl acetate copolymers, ethylene homopolymers or copolymers, propylene homopolymers or copolymers, styrene homopolymers or copolymers, polyurethanes, polyesters and/or or the polyamides.

In a further preferred embodiment, a method is characterized in that the agent (b) contains at least one film-forming, hydrophobic polymer as sealing agent (b1), which is selected from the group of copolymers of acrylic acid, copolymers of methacrylic acid, homopolymers or copolymers of acrylic acid esters, the homopolymers or copolymers of Methac rylic 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, der Homopolymers or copolymers of styrene, polyurethane, polyester and/or polyamide.

The film-forming hydrophobic polymers selected from the group of synthetic polymers, polymers obtainable by free-radical polymerization or natural polymers have proven to be particularly suitable for solving the problem of the invention.

Other particularly well suited film-forming hydrophobic polymers can be selected from the homopolymers or copolymers of olefins, such as cycloolefins, butadiene, isoprene or styrene, vinyl ethers, vinyl amides, the esters or amides of (meth)acrylic acid having at least one C ₁ -C ₂₀ - alkyl group, an aryl group or a C ₂ -C ₁₀ hydroxyalkyl group.

Further film-forming hydrophobic polymers can be selected from the 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 (methacrylate , 3-hydroxypropyl (meth)acrylate and/or mixtures thereof.

Other film-forming hydrophobic polymers can be selected from the homo- or copolymers of (meth)acrylamide, N-alkyl (meth)acrylamides, in particular those with C2-C18 alkyl groups, such as N-ethylacrylamide, N-tert-butylacrylamide, le N- Octylacrylamide, N-di(C1-C4)alkyl(meth)acrylamide.

Further preferred anionic copolymers are, for example, copolymers of acrylic acid, methacrylic acid or their C ₁ -C ₆ -alkyl esters, as are marketed under the INCI declaration Acrylates Copolymers. A suitable commercial product is, for example, ^Aculyn® 33 from Rohm & Haas. However, preference is also given to copolymers of acrylic acid, methacrylic acid or their C ₁ -C ₆ -alkyl esters and the esters of an ethylenically unsaturated acid and an alkoxylated fatty alcohol. Suitable ethylenically unsaturated acids are, in particular, acrylic acid, methacrylic acid and itaconic acid; suitable alkoxylated fatty alcohols are, in particular, steareth-20 or ceteth-20.

Very particularly preferred polymers on the market 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/Aminoacrylates C10-30 Alkyl PEG-20 Itaconate Copolymer), Carbopol® 1342, 1382, Ultrez 20, Ultrez 21 (Acrylates/C 10-30 Alkyl Acrylate Crosspolymer), Synthalen W 2000® (Acrylates/Palmeth-25 Acrylate Copolymer) or the Soltex OPT (Acrylates/C12-22 Alkyl methacrylate Copolymer) sold by Rohme and Haas.

Examples of suitable polymers based on vinyl monomers are the homo- and copolymers of N-vinylpyrrolidone, vinylcaprolactam, vinyl-(C1-C6-)alkylpyrrole, vinyloxazole, vinylthiazole, vinylpyrimidine or vinylimidazole.

The copolymers octylacrylamide/acrylates/butylaminoethyl methacrylate copolymers, such as those marketed commercially by NATIONAL STARCH under the trade names AMPHOMER® or LOVOCRYL® 47, for example, or the copolymers of acrylates/octylacrylamide under the trade names DERMACRYL® LT and DERMACRYL® 79 are distributed by NATIONAL STARCH.

Examples of suitable polymers based on olefins are the homo- and copolymers of ethylene, propylene, butene, isoprene and butadiene.

In a further embodiment, the film-forming hydrophobic polymers used can be block copolymers which comprise at least one block of styrene or the derivatives of styrene. These block copolymers can be copolymers which, in addition to a styrene block, contain one or more other blocks, such as styrene/ethylene, styrene/ethylene/ butylene, styrene/butylene, styrene/isoprene, styrene/butadiene. Corresponding polymers are sold commercially by BASF under the trade name “Luvitol HSB”.

Surprisingly, it turned out that very particularly intense and washfast colorations could be obtained if agent (b) contained at least one film-forming polymer as sealing agent (b1), which was selected from the group consisting of homopolymers and copolymers of acrylic acid, the 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 vinyl alcohol, vinyl acetate homopolymers and copolymers, ethylene homopolymers and copolymers, propylene homopolymers and copolymers, styrene homopolymers and copolymers, polyurethanes, polyesters and polyamides.

In a further preferred embodiment, a method is characterized in that the agent (b) contains at least one film-forming polymer as sealing agent (b1), which is 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 vinyl acetate, ethylene homopolymers and copolymers, propylene homopolymers and copolymers, styrene homopolymers and copolymers, polyurethanes, polyesters and polyamides.

In a further embodiment, it may be preferred to use at least one hydrophilic, film-forming polymer as sealing agent (b1) on average (b).

A hydrophilic polymer is understood as meaning a polymer that has a solubility in water at 25° C. (760 mmHg) of more than 1% by weight, preferably more than 2% by weight.

The water solubility of the film-forming hydrophilic polymer can be determined, for example, in the following way. 1 g of the polymer is placed in a beaker. Water is made up to 100 g. A stir bar is added and the mixture is warmed to 25°C on a magnetic stirrer with stirring. Stir for 60 minutes. The aqueous mixture is then assessed visually. A fully dissolved polymer appears macroscopically homogeneous. If the polymer-water mixture cannot be assessed visually due to a high level of turbidity in the mixture, the mixture is filtered. If no undissolved polymer remains on the filter paper, then the solubility of the polymer is greater than 1% by weight.

Nonionic, anionic and cationic polymers can be used as film-forming, hydrophilic polymers.

Suitable film-forming, hydrophilic polymers can be, for example, from the group 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.

Furthermore, it is very particularly preferred to use polyvinylpyrrolidone (PVP) and/or a copolymer containing vinylpyrrolidone as the film-forming hydrophilic polymer.

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

It is also preferred if the agent contains polyvinylpyrrolidone (PVP) as the film-forming, hydrophilic polymer. Surprisingly, the wash fastness of the dyeings that could be obtained with PVP-containing agents (b) was very good.

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

The polymer PVP K30, which is marketed by Ashland (ISP, POI Chemical), can also be used as a further polyvinylpyrrolidone (PVP) that is explicitly very particularly well suited. PVP K 30 is a polyvinylpyrrolidone that is very readily soluble in cold water and has the CAS number 9003-39-8. The molecular weight of PVP K 30 is around 40000 g/mol.

Other very particularly suitable polyvinylpyrrolidones are the substances 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 and are available from BASF.

The use of film-forming hydrophilic polymers from the group of polyvinylpyrrolidone copolymers has also led to particularly good and washfast color results.

In this connection, vinylpyrrolidone-vinyl ester copolymers, such as those sold under the trade name ^Luviskol® (BASF), can be mentioned as particularly suitable film-forming, hydrophilic polymers. ^Luviskol® VA 64 and ^Luviskol® VA 73, each vinyl pyrrolidone/vinyl acetate copolymers, are particularly preferred nonionic polymers.

Of the vinylpyrrolidone-containing copolymers, a styrene/VP copolymer and/or a vinylpyrrolidone-vinyl acetate copolymer and/or a VP/DMAPA acrylate copolymer and/or a VP/vinyl caprolactam/DMAPA acrylate copolymer are very particularly preferably used in the cosmetic compositions .

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

Other suitable copolymers of polyvinylpyrrolidone are the copolymers obtained by reacting N-vinylpyrrolidone with at least one other monomer from the group consisting of V-vinylformamide, vinyl acetate, ethylene, propylene, acrylamide, vinylcaprolactam, vinylcaprolactone and/or vinyl alcohol .

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

Another suitable copolymer of vinylpyrrolidone is the polymer known under the INCI name maltodextrin/VP copolymer.

Furthermore, intensely colored keratinic material, in particular hair, with very good fastness to washing could be obtained if a nonionic, film-forming, hydrophilic polymer was used as the film-forming, hydrophilic polymer.

In a further embodiment, the agent (b) can contain at least one nonionic, film-forming, hydrophilic polymer as the sealing agent (b1).

According to the invention, a nonionic polymer is a polymer which, in a protic solvent--such as water, for example--under standard conditions does not carry any structural units with permanently cationic or anionic groups which have to be compensated for by counterions while maintaining electroneutrality. Cationic groups include, for example, quaternized ammonium groups, but not protonated amines. Anionic groups include, for example, carboxyl and sulfonic acid groups.

• - Polyvinylpyrrolidon,
• - Copolymeren aus N-Vinylpyrrolidon und Vinylestern von Carbonsäuren mit 2 bis 18 Kohlenstoffatomen, insbesondere aus N-Vinylpyrrolidon und Vinylacetat,
• - Copolymeren aus N-Vinylpyrrolidon und N-Vinylimidazol und Methacrylamid,
• - Copolymeren aus N-Vinylpyrrolidon und N-Vinylimidazol und Acrylamid,
• - Copolymeren aus N-Vinylpyrrolidon mit N,N-Di(C1 bis C4)-Alkylamino-(C2 bis C4)-alkylacrylamid.

Very particular preference is given to agents which contain at least one polymer selected from the group consisting of as the nonionic, film-forming, hydrophilic polymer

• - polyvinylpyrrolidone,
• - Copolymers of N-vinylpyrrolidone and vinyl esters of carboxylic acids having 2 to 18 carbon atoms, in particular of N-vinylpyrrolidone and vinyl acetate,
• - Copolymers of N-vinylpyrrolidone and N-vinylimidazole and methacrylamide,
• - Copolymers of N-vinylpyrrolidone and N-vinylimidazole and acrylamide,
• - Copolymers of N-vinylpyrrolidone with N,N-di(C1 to C4)alkylamino-(C2 to C4)alkylacrylamide.

If copolymers of N-vinylpyrrolidone and vinyl acetate are used, it is preferred if the molar ratio of the structural units from the monomer N-vinylpyrrolidone to the structural units of the polymer from the monomer vinyl acetate is in the range from 20:80 to 80:20, in particular from 30 to 70 to 60 to 40. Suitable copolymers of vinylpyrrolidone and vinyl acetate are available, for example, under the trade names Luviskol® VA 37, Luviskol® VA 55, Luviskol® VA 64 and Luviskol® VA 73 from BASF SE.

Another particularly preferred polymer is selected from the polymers of the INCI designation VP/methacrylamide/vinyl imidazole copolymer, which are available, for example, under the trade name Luviset Clear from BASF SE.

Another very particularly preferred nonionic, film-forming, hydrophilic polymer is a copolymer of N-vinylpyrrolidone and N,N-dimethylaminopropylmethacrylamide, which, for example, has the INCI name VP/DMAPA Acrylates Copolymer z. B. is sold under the trade name Styleze® CC 10 by the company ISP.

A cationic polymer is the 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, under the trade name AquaStyle ^® 300 (28-32% by weight of active substance in an ethanol-water mixture, molecular weight 350,000) by ISP.

• - Vinylpyrrolidon-Vinylimidazoliummethochlorid-Copolymere, wie sie unter den Bezeichnungen Luviquat^® FC 370, FC 550 und der INCI-Bezeichnung Polyquaternium-16 sowie FC 905 und HM 552 angeboten werden,
• - Vinylpyrrolidon-Vinylcaprolactam-Acrylat-Terpolymere, wie sie mit Acrylsäureestern und Acrylsäureamiden als dritter Monomerbaustein im Handel beispielsweise unter der Bezeichnung Aquaflex^® SF 40 angeboten werden.

Other suitable film-forming, hydrophilic polymers are, for example

• - Vinylpyrrolidone-vinylimidazolium methochloride copolymers, such as those 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, such as those commercially available with acrylic acid esters and acrylic acid amides as the third monomer building block, for example under the name ^Aquaflex® SF 40.

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

Polyquaternium-46 is the 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 to 5% by weight, based on the total weight of the cosmetic composition. It is most preferred that Polyquaternium-46 is used in combination with a cationic guar compound. In fact, it is highly preferred that Polyquaternium-46 is used in combination with a cationic guar compound and Polyquaternium-11.

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

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

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

Examples of suitable film-forming, hydrophilic polymers from the group of acrylamides are polymers which are prepared from monomers of (meth)acrylamido-C1-C4-alkylsulfonic acid or the salts thereof. Corresponding polymers can be selected from the polymers of polyacrylamidomethanesulfonic acid, polyacrylamidoethanesulfonic acid, polyacrylamidopropanesulfonic acid, poly2-acrylamido-2-methylpropanesulfonic acid, poly-2-methylacrylamido-2-methylpropanesulfonic acid and/or poly-2-methylacrylamido-n-butanesulfonic acid.

Preferred polymers of poly(meth)arylamido-C1-C4-alkylsulfonic acids are crosslinked and at least 90% neutralized. These polymers can be crosslinked or non-crosslinked.

Crosslinked and completely or partially neutralized polymers of the poly-2-acrylamido-2-methylpropanesulfonic acid type are known by the INCI names “ammonium polyacrylamido-2-methylpropanesulphonate” or “ammonium polyacryldimethyltauramide”.

Another preferred polymer of this type is the crosslinked poly-2-acrylamido-2methyl-propanesulphonic acid polymer sold by Clariant under the trade name Hostacerin AMPS, which is partially neutralized with ammonia.

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

wobei
M für ein Wasserstoffatom oder für Ammonium (NH₄), Natrium, Kalium, ½ Magnesium oder ½ Calcium steht.In this context, the best results were obtained when the agent (b) contains at least one film-forming polymer as sealing agent (b1) which comprises at least one structural unit of the formula (PI) and at least one structural unit of the formula (P-II).

whereby
M is a hydrogen atom or ammonium (NH ₄ ), sodium, potassium, ½ magnesium or ½ calcium.

wobei
M für ein Wasserstoffatom oder für Ammonium (NH₄), Natrium, Kalium, ½ Magnesium oder ½ Calcium steht.In a further preferred embodiment, a method is characterized in that the agent (b) contains at least one film-forming polymer as sealing agent (b1) which comprises at least one structural unit of the formula (PI) and at least one structural unit of the formula (P-II).

whereby
M is a hydrogen atom or ammonium (NH ₄ ), sodium, potassium, ½ magnesium or ½ calcium.

When M is a hydrogen atom, the structural unit of formula (P-I) is based on an acrylic acid moiety.

When M is an ammonium counterion, the structural unit of formula (PI) is based on the ammonium salt of acrylic acid.

When M is a sodium counterion, the structural unit of formula (P-I) is based on the sodium salt of acrylic acid.

When M is a potassium counterion, the structural unit of formula (P-I) is based on the potassium salt of acrylic acid.

When M represents a half equivalent of a magnesium counterion, the structural unit of formula (P-I) is based on the magnesium salt of acrylic acid.

When M is half an equivalent of a calcium counterion, the structural unit of formula (P-I) is based on the calcium salt of acrylic acid.

The film-forming polymer or polymers are preferably used in specific amounts in the agent (b). In this context, it has proven to be particularly preferred for solving the task of the invention if the agent (b) - based on the total weight of the agent (b) - one or more film-forming polymers as sealing agent (b1) in a total amount of 0.1 to 18% by weight, preferably from 1 to 16% by weight, more preferably from 5 to 14.5% by weight and very particularly preferably from 8 to 12% by weight.

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

With the use of agent (b), comprising a film-forming polymer as sealing agent (b1), the optionally colored film initially produced by the use of agent (a) is to be sealed and/or fixed. With the application of the second agent (b) with a film-forming polymer as the sealing agent (b1), the film-forming polymer is deposited in the form of a further film on the possibly colored film produced in the first layer. The multilayer film system produced in this way has improved resistance to external influences.

It can be preferred here that the film produced by means (b), comprising a film-forming polymer as sealing agent (b1), itself is not colored. In this way it can also be ensured that a certain degree of abrasion of the second film formed by means (b) does not lead to any color changes in the entire film system. It can therefore be very particularly preferred that agent (b) contains no or only very small amounts of color-imparting compounds.

In an alternative embodiment, the sealing reagent (b1) contains an alkalizing agent.

The alkalizing agent is particularly preferably selected from the group consisting of ammonia, C ₂ -C ₆ alkanolamines, basic amino acids, alkali metal hydroxides and alkaline earth metal hydroxides.

In a further particularly preferred embodiment, a method is characterized in that agent (b) contains at least one alkalizing agent as sealing agent (b1), which is selected from the group consisting of ammonia, C ₂ -C ₆ -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.

It has been found that the aftertreatment with an agent (b) which contains ammonia has a particularly good effect on improving the fastness to washing and the fastness to rubbing of the dyeings obtained in the process.

Within the scope of a further very particularly preferred embodiment, a method is characterized in that the composition (b) contains ammonia as sealing agent (b1).

Good results could also be obtained if the composition (b) contained at least one C ₂ -C ₆ -alkanolamine as sealing agent (b1).

The alkanolamines which can be used in composition (b) can be selected, for example, from the group of primary amines with a C ₂ -C ₆ -alkyl skeleton which carries at least one hydroxyl group. Preferred alkanolamines are selected from the group formed by 2-aminoethan-1-ol (monoethanolamine), 3-aminopropan-1-ol, 4-aminobutan-1-ol, 5-aminopentan-1-ol, 1-aminopropane -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.

In a further preferred embodiment, a method according to the invention is characterized in that the composition (b) contains at least one alkalizing agent from the group of alkanolamines as sealing agent (b1), which is preferably selected from the group of 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-aminopropan-1,2-diol and 2-amino-2-methylpropane-1,3-diol.

Good results could also be obtained if composition (b) contained at least one basic amino acid as sealing reagent (b1).

For the purposes of the invention, an amino acid is an organic compound which contains at least one protonatable amino group and at least one —COOH or one —SO ₃ H group in its structure. Preferred amino acids are amino carboxylic acids, in particular α-(alpha)-amino carboxylic acids and ω-amino carboxylic acids, with α,-amino carboxylic acids being particularly preferred.

According to the invention, basic amino acids are to be understood as meaning those amino acids which have an isoelectric point pI greater than 7.0.

Basic α,-amino carboxylic acids contain at least one asymmetric carbon atom. In the context of the present invention, both possible enantiomers can be used equally as a specific compound or mixtures thereof, in particular as racemates. However, it is particularly advantageous to use the naturally occurring isomer form, usually in the L configuration.

The basic amino acids are preferably selected from the group formed from arginine, lysine, ornithine and histidine, particularly preferably from arginine and lysine. In a further particularly preferred embodiment, the method is therefore characterized in that the sealing reagent (b1) is an alkalizing agent comprising a basic amino acid from the group arginine, lysine, ornithine and/or histidine.

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

Good results could also be obtained if the agent (b) contains at least one alkali metal hydroxide as the sealing agent (b1). Sodium hydroxide and potassium hydroxide, for example, can be mentioned as highly suitable alkali metal hydroxides.

Good results could also be obtained if the composition (b) contained an alkalizing agent comprising at least one alkaline earth metal hydroxide as the sealing agent (b1). Magnesium hydroxide, calcium hydroxide and barium hydroxide, for example, can be mentioned as highly suitable alkaline earth metal hydroxides.

Good results could also be obtained if the agent (b) contained at least one alkali metal silicate and/or alkali metal metasilicate as sealing agent (b1). Examples of suitable alkali metal silicates are sodium silicate and potassium silicate. Examples of suitable alkali metal metasilicates are sodium metasilicate and potassium metasilicate.

Good results could also be obtained if the agent (b) contained at least one alkali metal carbonate and/or alkaline earth metal carbonate as sealing agent (b1). Examples of suitable alkali metal carbonates are sodium carbonate and potassium carbonate. Examples of suitable alkaline earth metal carbonates are magnesium carbonate and calcium carbonate.

Within the group of the aforementioned sealing reagent (b1) in the form of an alkalizing agent, ammonia, C ₂ -C ₆ -alkanolamines, basic amino acids and alkali metal hydroxides have proven to be particularly well suited.

In a further particularly preferred embodiment, the method is characterized in that agent (b) comprises at least one alkalizing agent selected from the group consisting of ammonia, C ₂ -C ₆ -alkanolamines, basic amino acids and alkali metal hydroxides as sealing agent (b1).

Within the scope of a further particularly preferred embodiment, the method is characterized in that the agent (b) contains at least one alkalizing agent as the sealing agent (b1) which is 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.

The agent (b) contains the alkalizing agent as a sealing agent (b1) in a cosmetic carrier, preferably in an aqueous cosmetic carrier.

In this context, it has been found to be preferred if agent (b) - based on the total weight of agent (b) - contains 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.

In a further embodiment, the method is characterized in that the agent (b) - based on the total weight of the agent (b) - 5.0 to 99.0 wt .-%, preferably 15.0 to 97.0 wt .-%. %, 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.

The alkalizing agents contained in the agent (b) exert an influence on the pH of the agent (b). It was found here that certain alkaline pH values in particular have an advantageous effect on the dyeing performance that can be achieved in the process and the fastness properties of the dyeings.

For this reason it is preferred that the agent (b), comprising an alkalizing agent as a sealing agent (b1), has a pH of 7.0 to 12.0, preferably from 7.5 to 11.5, more preferably from 8 .0 to 11.0 and most preferably from 8.5 to 9.5.

The pH value can be measured using the usual methods known from the prior art, such as, for example, measuring the pH value using glass electrodes using combination measuring chains or using pH indicator paper.

In another very particularly preferred embodiment, the method is characterized in that the agent (b) contains an alkalizing agent as the sealing agent (b1) and has a pH of from 7.0 to 12.0, preferably from 7.5 to 11. 5, more preferably from 8.0 to 11.0, and most preferably from 8.5 to 9.5.

The pH values for the purposes of the present invention are pH values measured at a temperature of 22.degree.

In yet another alternative embodiment, the sealing reagent (b1) contains an acidifying agent.

More preferably, the acidifying agent is selected from the group consisting of inorganic acids, organic acids, and mixtures thereof.

Good results can be obtained if the agent (b) contains at least one inorganic acid as sealing agent (b1). Suitable inorganic acids are, for example, phosphoric acid, sulfuric acid and/or hydrochloric acid, sulfuric acid being particularly preferred.

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

In a further, even more preferred embodiment, the method is characterized in that the agent (b) contains sulfuric acid as the sealing agent (b1).

Good results could also be obtained if the agent (b) contains at least one organic acid as the sealing reagent (b1). The organic acid is preferably selected from the group consisting of 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, toluoic 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.

In a further preferred embodiment, the method is characterized in that the agent (b) contains at least one acidifying agent from the group of organic acids as the sealing agent (b1), the organic acid preferably being selected from the group consisting of 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, toluoic 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, Ma ionaldehyde acid, 4-hydroxy-phthalamic acid, 1-pyrazole carboxylic acid, gallic acid or propane tricarboxylic acid, glycolic acid, gluconic acid, lactic acid, maleic acid, ascorbic acid, malic acid, tartaric acid, citric acid and mixtures thereof.

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

Also suitable acidifying agents include methanesulfonic acid and/or 1-hydroxyethane-1,1-diphosphonic acid.

Within the group of the aforementioned sealing reagents (b1) in the form of an acidifying agent, sulfuric acid and/or acetic acid have proven to be particularly well suited.

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

The agent (b) contains the acidifying agent as a sealing agent (b1) in a cosmetic carrier, preferably in an aqueous cosmetic carrier.

The acidifying agents contained in the composition (b) exert an influence on the pH of the composition (b). It was found here that acidic pH values also have an advantageous effect on the dyeing performance that can be achieved in the process and on the fastness properties of the dyeings.

For this reason, it is preferred that the agent (b), comprising an acidifying agent as a sealing agent (b1), has a pH of 2.0 to 6.5, preferably from 3.0 to 6.0, more preferably from 4 .0 to 6.0 and most preferably from 4.5 to 5.5.

The pH value can be measured using the usual methods known from the prior art, such as, for example, measuring the pH value using glass electrodes using combination measuring chains or using pH indicator paper.

In another very particularly preferred embodiment, the method is characterized in that agent (b) contains an acidifying agent as sealing agent (b1) and has a pH of from 2.0 to 6.5, preferably from 3.0 to 6. 0, more preferably from 4.0 to 6.0, and most preferably from 4.5 to 5.5.

The pH values for the purposes of the present invention are pH values measured at a temperature of 22.degree.

Other ingredients in agents (a) and (b)

The agents (a) and (b) described above can also contain one or more optional ingredients. However, it is essential to the invention that at least one of agents (a) and (b) also contains at least one color-providing compound from the group of pigments and/or direct dyes.

It can be preferred that the agent (a) in addition to the at least one organic silicon compound from the group of silanes having one, two or three silicon atoms (a1) and carboxymethylcellulose and/or salts thereof (a2) also contains at least one color-imparting compound from the group consisting of pigments and/or direct dyes.

Alternatively, it can be preferred that the agent (b), in addition to the sealing agent (b1), also contains at least one color-providing compound selected from the group consisting of pigments and/or substantive dyes.

In a likewise preferred embodiment of the process, agent (a) and agent (b) each also contain at least one color-providing compound selected from the group consisting of pigments and/or direct dyes.

Irrespective of the means (a) and/or (b), the use of pigments has proven to be very particularly preferred in this context.

In a further very particularly preferred embodiment, a method is characterized in that agent (a) and/or agent (b) also contains at least one coloring compound from the group of pigments.

For the purposes of the present invention, pigments are understood to mean coloring compounds which have a solubility in water at 25° C. of less than 0.5 g/l, preferably less than 0.1 g/l, even more preferably less than 0. Possess 05 g/L. The water solubility can be determined, for example, using the method described below: 0.5 g of the pigment is weighed out in a glass beaker. A stir bar is added. Then one liter of distilled water is added. This mixture is heated to 25°C with stirring on a magnetic stirrer for one hour. If undissolved components of the pigment are still visible in the mixture after this period, the solubility of the pigment is below 0.5 g/L. If the pigment-water mixture cannot be assessed visually due to the high intensity of the pigment, which may be present in finely dispersed form, the mixture is filtered. If a proportion of undissolved pigments remains on the filter paper, the solubility of the pigment is below 0.5 g/L.

Suitable pigments can be of inorganic and/or organic origin.

In a preferred embodiment, a method is characterized in that agent (a) and/or agent (b) also contains at least one coloring compound from the group of inorganic and/or organic pigments.

Preferred pigments are selected from synthetic or natural inorganic pigments. Inorganic pigments of natural origin can be made, for example, from chalk, ochre, umber, green earth, burnt terra di sienna or graphite. Furthermore, as inorganic pigments black pigments such. B. iron oxide black, colored pigments such. B. ultramarine or iron oxide red and fluorescent or phosphorescent pigments can be used.

Colored metal oxides, metal hydroxides and metal oxide hydrates, mixed-phase pigments, sulfur-containing silicates, silicates, metal sulfides, complex metal cyanides, metal sulfates, metal chromates and/or metal molybdates are particularly suitable. 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), ultramarines (sodium aluminum sulfosilicates, CI 77007, Pigment Blue 29), hydrated chromium oxide (CI77289 ), Iron Blue (Ferric Ferrocyanide, CI7751 0) and/or Carmine (Cochineal).

Likewise particularly preferred pigments are colored pearlescent pigments. These are usually based on mica and/or mica and can be coated with one or more metal oxides. Mica belongs to the layered silicates. The most important representatives of these silicates are muscovite, phlogopite, paragonite, biotite, lepidolite and margarite. To produce the pearlescent pigments in combination with metal oxides, the mica, mainly muscovite or phlogopite, is coated with a metal oxide.

Accordingly, a preferred method is characterized in that agent (a) and/or agent (b) also contains at least one coloring compound from the group of pigments, which is selected from the group of colored metal oxides, metal hydroxides, metal oxide hydrates, silicates, Metal sulphides, complex metal cyanides, metal sulphates, bronze pigments and/or colored pigments based on natural or synthetic mica coated with at least one metal oxide and/or one metal oxychloride.

A preferably suitable pigment based on synthetic mica is, for example, Timiron® SynWhite Satin from Merck.

In a further preferred embodiment, the method is characterized in that the agent (a) and / or the agent (b) contains at least one coloring compound from the group of pigments, which is selected from pigments based on natural or synthetic mica, the with one or more metal oxides 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), ultramarines (Sodium aluminum sulfosilicates, CI 77007, Pigment Blue 29), hydrated chromium oxide (CI 77289), chromium oxide (CI 77288) and/or iron blue (Ferric Ferrocyanide, CI 77510).

In another preferred embodiment of the method, agent (a) and/or agent (b) is characterized in that it contains at least one coloring compound from the group of inorganic pigments, which is selected from the group consisting of black iron oxide (CI 77499) , yellow iron oxide (CI 77492), red iron oxide (CI 77491) and mixtures thereof.

Yellow iron oxide (or iron oxide yellow) is the designation for FeO(OH), in the Color Index under C.I. Pigment Yellow 42 listed.

Red iron oxide (or iron oxide red) is the designation for Fe ₂ O ₃ , listed in the Color Index under CI Pigment Red 101. Depending on the particle size, red iron oxide pigments can be made very yellowish (small particle size) to very bluish (coarse particles).

Black iron oxide (or iron oxide black) is listed in the Color Index under CI Pigment Black 11. Iron oxide black is ferromagnetic. The chemical formula is often given as Fe ₃ O ₄ , but in reality it is a mixed crystal of Fe ₂ O ₃ and FeO with an inverse spinel structure. Additional black pigments are obtained by doping with chromium, copper or manganese.

Brown black iron oxide (or iron oxide brown) usually does not refer to a defined pigment, but to a mixture of yellow, red and/or black iron oxide.

Iron oxide pigments usually have particle diameters in the range from 2000 to 4000 nm. For some applications, in particular for cosmetic purposes, it can be advantageous to use iron oxide pigments with significantly smaller particle diameters. So show hair coloring with Iron oxide pigments having a particle diameter in the range 100 to 1000 nm, more preferably 150 nm 700 nm, have better durability and better gray coverage.

Accordingly, a method is preferred in which agent (a) and/or agent (b) also comprises a coloring compound from the group of pigments and/or substantive dyes, the coloring compound comprising a pigment from the group of iron oxide pigments.

Even more preferred is a method in which agent (a) and/or agent (b) also comprises a coloring compound from the group of pigments and/or substantive dyes, wherein the coloring compound comprises a pigment from the group of iron oxide pigments and wherein the iron oxide pigment has a particle diameter in the range of 100 to 1000 nm, more preferably 150 nm 700 nm.

Other suitable pigments are based on metal oxide-coated platelet-shaped borosilicates. These are coated, for example, with tin oxide, iron oxide(s), silicon dioxide and/or titanium dioxide. Such borosilicate-based pigments are available, for example, under the name MIRAGE from Eckart or Reflecks from BASF SE.

In a preferred embodiment, an agent (a) is characterized in that it contains at least one coloring 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.

Yellow iron oxide (or iron oxide yellow) is the designation for FeO(OH), in the Color Index under C.I. Pigment Yellow 42 listed.

Red iron oxide (or iron oxide red) is the designation for Fe ₂ O ₃ , listed in the Color Index under CI Pigment Red 101. Depending on the particle size, red iron oxide pigments can be made very yellowish (small particle size) to very bluish (coarse particles).

Black iron oxide (or iron oxide black) is listed in the Color Index under CI Pigment Black 11. Iron oxide black is ferromagnetic. The chemical formula is often given as Fe ₃ O ₄ , but in reality it is a mixed crystal of Fe ₂ O ₃ and FeO with an inverse spinel structure. Additional black pigments are obtained by doping with chromium, copper or manganese.

Brown black iron oxide (or iron oxide brown) usually does not refer to a defined pigment, but to a mixture of yellow, red and/or black iron oxide.

Iron oxide pigments usually have particle diameters in the range from 2000 to 4000 nm. For some applications, in particular for cosmetic purposes, it can be advantageous to use iron oxide pigments with significantly smaller particle diameters. For example, hair dyeings with iron oxide pigments that have a particle diameter in the range from 100 to 1000 nm, more preferably 150 nm to 700 nm, exhibit better durability and better gray coverage.

Even more preferred is therefore an agent (a) which also comprises a coloring compound from the group of pigments and/or substantive dyes, the coloring compound comprising a pigment from the group of iron oxide pigments and the iron oxide pigment having a particle diameter in the range of 100 to 1000 nm, more preferably 150 nm 700 nm.

Examples of particularly suitable pigments are commercially available, for example under the trade names Rona®, Colorona®, Xirona®, Dicrona® 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.

• Colorona Copper, Merck, MICA, CI 77491 (IRON OXIDES)
• Colorona Copper Fine, Merck, MICA, CI 77491 (IRON OXIDES)
• Colorona Passion Orange, Merck, Mica, CI 77491 (Iron Oxides), 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 OXIDES), MICA
• Colorona Aborigine Amber, Merck, MICA, CI 77499 (IRON OXIDES), CI 77891 (TITANIUM DIOXIDE)
• Colorona Blackstar Blue, Merck, CI 77499 (IRON OXIDES), 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 GREENS)
• 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 OXIDES (CI 77491)
• Colorona Carmine Red, Merck, MICA, TITANIUM DIOXIDE, CARMINE
• Colorona Blackstar Green, Merck, MICA, CI 77499 (IRON OXIDES)
• Colorona Bordeaux, Merck, MICA, CI 77491 (IRON OXIDES)
• Colorona Bronze, Merck, MICA, CI 77491 (IRON OXIDES)
• Colorona Bronze Fine, Merck, MICA, CI 77491 (IRON OXIDES)
• Colorona Fine Gold MP 20, Merck, MICA, CI 77891 (TITANIUM DIOXIDE), CI 77491 (IRON OXIDES)
• Colorona Sienna Fine, Merck, CI 77491 (IRON OXIDES), MICA
• Colorona Sienna, Merck, MICA, CI 77491 (IRON OXIDES)
• 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 OXIDES, MICA, CI 77891, CI 77491 (EU)
• Colorona Mica Black, Merck, CI 77499 (Iron oxides), Mica, C! 77891 (Titanium dioxide)
• Colorona Bright Gold, Merck, Mica, CI 77891 (Titanium dioxide), CI 77491 (Iron oxides)
• Colorona Blackstar Gold, Merck, MICA, CI 77499 (IRON OXIDES)
• Colorona® SynCopper, Merck, Synthetic Fluorphlogopite (and) Iron Oxides
• Colorona® SynBronze, Merck, Synthetic Fluorphlogopite (and) Iron Oxides

Examples of very particularly preferred pigments with the trade name Colorona® are:

• Colorona Copper, Merck, MICA, CI 77491 (IRON OXIDES)
• Colorona Copper Fine, Merck, MICA, CI 77491 (IRON OXIDES)
• Colorona Passion Orange, Merck, Mica, CI 77491 (Iron Oxides), 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 OXIDES), MICA
• Colorona Aborigine Amber, Merck, MICA, CI 77499 (IRON OXIDES), CI 77891 (TITANIUM DIOXIDE)
• Colorona Blackstar Blue, Merck, CI 77499 (IRON OXIDES), MICA
• Colorona Patagonian Purple, Merck, MICA, CI 77491 (IRON OXIDES), CI 77891 (TITANIUM DIOXIDE), CI 77510 (FERRIC FERROCYANIDES)
• Colorona Red Brown, Merck, MICA, CI 77491 (IRON OXIDES), CI 77891 (TITANIUM DIOXIDES)
• Colorona Russet, Merck, CI 77491 (TITANIUM DIOXIDES), 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 GREENS)
• 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 OXIDES (CI 77491)
• Colorona Carmine Red, Merck, MICA, TITANIUM DIOXIDE, CARMINE
• Colorona Blackstar Green, Merck, MICA, CI 77499 (IRON OXIDES)
• Colorona Bordeaux, Merck, MICA, CI 77491 (IRON OXIDES)
• Colorona Bronze, Merck, MICA, CI 77491 (IRON OXIDES)
• Colorona Bronze Fine, Merck, MICA, CI 77491 (IRON OXIDES)
• Colorona Fine Gold MP 20, Merck, MICA, CI 77891 (TITANIUM DIOXIDE), CI 77491 (IRON OXIDES)
• Colorona Sienna Fine, Merck, CI 77491 (IRON OXIDES), MICA
• Colorona Sienna, Merck, MICA, CI 77491 (IRON OXIDES)
• 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 OXIDES, MICA, CI 77891, CI 77491 (EU)
• Colorona Mica Black, Merck, CI 77499 (Iron oxides), Mica, C! 77891 (Titanium dioxide)
• Colorona Bright Gold, Merck, Mica, CI 77891 (Titanium dioxide), CI 77491 (Iron oxides)
• Colorona Blackstar Gold, Merck, MICA, CI 77499 (IRON OXIDES)
• Colorona® SynCopper, Merck, Synthetic Fluorphlogopite (and) Iron Oxides
• Colorona® SynBronze, Merck, Synthetic Fluorphlogopite (and) Iron Oxides

• 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 Oxides (and) Silica

Examples of further particularly preferred pigments with the trade name Xirona® are:

• 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 Oxides (and) Silica

• Unipure Red LC 381 EM, Sensient CI 77491 (Iron Oxides), Silica
• Unipure Black LC 989 EM, Sensient, CI 77499 (Iron Oxides), Silica
• Unipure Yellow LC 182 EM, Sensient, CI 77492 (Iron Oxides), Silica

In addition, particularly preferred pigments with the trade name Unipure® are, for example:

• Unipure Red LC 381 EM, Sensient CI 77491 (Iron Oxides), Silica
• Unipure Black LC 989 EM, Sensient, CI 77499 (Iron Oxides), Silica
• Unipure Yellow LC 182 EM, Sensient, CI 77492 (Iron Oxides), Silica

• Flamenco® Summit Turquoise T30D, BASF, Titanium Dioxide (and) Mica
• Flamenco® Super Violet 530Z, BASF, Mica (and) Titanium Dioxide

Also particularly preferred pigments with 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

In a further embodiment, agent (a) and/or agent (b) used in the process can also contain one or more color-imparting compounds from the group of organic pigments.

The organic pigments are correspondingly insoluble organic dyes or lakes, for example from the group of nitroso, nitro, azo, xanthene, anthraquinone, isoindolinone, isoindoline, quinacridone, perinone, perylene , diketopyrrolopyrrole, indigo, thioindido, dioxazine, and/or triarylmethane compounds can be selected.

Particularly suitable organic pigments are, for example, carmine, quinacridone, phthalocyanine, sorghum, blue pigments with the Color Index numbers CI 42090, CI 69800, CI 69825, CI 73000, CI 74100, CI 74160, yellow pigments with the Color Index numbers CI 11680 , Cl 11710, CI 15985, CI 19140, CI 20040, CI 21100, CI 21108, CI 47000, CI 47005, green pigments with the Color Index numbers CI 61565, CI 61570, CI 74260, orange pigments with the Color Index numbers CI 11725 , CI 15510, CI 45370, CI 71105, red pigments with the 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 and/or CI 75470.

In a further particularly preferred embodiment, the method is characterized in that agent (a) and/or agent (b) contains at least one coloring compound from the group of organic pigments, which is selected from the group consisting of carmine, quinacridone, Phthalocyanine, sorghum, blue pigments with the Color Index numbers CI 42090, CI 69800, CI 69825, CI 73000, CI 74100, CI 74160, yellow pigments with the Color Index numbers CI 11680, CI 11710, CI 15985, CI 19140, CI 20040 , CI 21100, CI 21108, CI 47000, CI 47005, green pigments with the Color Index numbers CI 61565, CI 61570, CI 74260, orange pigments with the Color Index numbers CI 11725, CI 15510, CI 45370, CI 71105, red pigments with the 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.

The organic pigment can also be a colored lake. In the context of the invention, the term colored lake is understood to mean particles comprising a layer of absorbed dyes, the particle-dye unit being insoluble under the above conditions. The particles can be, for example, inorganic substrates, which can be aluminum, silica, calcium borosilicate, calcium aluminum borosilicate or aluminum.

Alizarin color lake, for example, can be used as the color lake.

In a further embodiment of the process, agent (a) and/or agent (b) can also contain one or more color-imparting compounds from the group of organic pigments.

In a further particularly preferred embodiment, a method is characterized in that agent (a) and/or agent (b) contains at least one coloring compound from the group of organic pigments, which is selected from the group of carmine, quinacridone, phthalocyanine , sorghum, blue pigments with the Color Index numbers CI 42090, CI 69800, CI 69825, CI 73000, CI 74100, CI 74160, yellow pigments with the Color Index numbers CI 11680, Cl 11710, CI 15985, CI 19140, CI 20040, CI 21100, CI 21108, CI 47000, CI 47005, green pigments with the Color Index numbers CI 61565, CI 61570, CI 74260, orange pigments with the Color Index numbers CI 11725, CI 15510, CI 45370, CI 71105, red pigments with the 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 and/or CI 75470.

In particular, a method is preferred in which agent (a) and/or agent (b) also comprises a coloring compound from the group of pigments and/or substantive dyes, the coloring compound comprising a pigment from the group of organic pigments.

Even more preferred is a method in which agent (a) and/or agent (b) also comprises a color-providing compound from the group of pigments and/or substantive dyes, the color-providing compound comprising at least one pigment from the group of organic pigments and wherein the organic pigment has a particle diameter in the range of 100 to 1000 nm, more preferably 150 nm 700 nm.

Likewise suitable coloring compounds from the group of pigments are inorganic and/or organic pigments which have been modified with a polymer. The polymer modification can, for example, increase the affinity of the pigments for the respective material of the at least one layer.

In the agent (a) and/or the agent (b) it is also possible to use so-called metallic effect pigments as the coloring compound.

The metallic effect pigments can contain, in particular, pigments based on a lamellar substrate flake, pigments based on lenticular substrate flakes and/or pigments based on substrate flakes which comprise “vacuum metallized pigments” (VMP). In the case of these metallic effect pigments, the substrate flakes comprise a metal, preferably aluminum, or an alloy. Metal substrate flake-based metallic effect pigments preferably have a coating which acts, inter alia, as a protective layer.

Suitable metallic effect pigments include, for example, the pigments Alegrace® Marvelous, Alegrace® Gorgeous or Alegrace® Aurous from Schlenk Metallic Pigments.

Also suitable metal effect pigments are the aluminum-based pigments from the SILVERDREAM series and the pigments from Eckart's VISIONAIRE series based on aluminum or on metal alloys containing copper/zinc.

Due to their excellent light and temperature stability, the use of the aforementioned pigments in the composition (a) and/or (b) is particularly preferred. Furthermore, it is preferred if the pigments used have a certain particle size. On the one hand, this particle size leads to a uniform distribution of the pigments in the polymer film formed and, on the other hand, avoids a rough feel on the hair or skin after the cosmetic agent has been applied. It is therefore advantageous according to the invention if the at least one pigment has an average particle size D ₅₀ of from 1 to 50 μm, preferably from 5 to 45 μm, preferably from 10 to 40 μm, in particular from 14 to 30 μm. The mean particle size D ₅₀ can be determined, for example, using dynamic light scattering (DLS).

In a further preferred embodiment, the method is characterized in that agent (a) - based on the total weight of agent (a) - also contains one or more coloring compound(s) in the form of pigments in a total amount of from 0.01 to 10 % by weight, preferably from 0.1 to 8% by weight, more preferably from 0.2 to 6% by weight and very particularly preferably from 0.5 to 4.5% by weight.

In a further, likewise preferred embodiment, the method is characterized in that agent (b) - based on the total weight of agent (b) - also contains one or more coloring compound(s) in the form of pigments in a total amount of 0.01 to 10% by weight, preferably from 0.1 to 8% by weight, more preferably from 0.2 to 6% by weight and very particularly preferably from 0.5 to 4.5% by weight.

The agents (a) and/or agents (b) used in the process may also contain one or more direct dyes as the coloring compound(s). Direct dyes are dyes that are applied directly to the hair and do not require an oxidative process to form the need color. Direct dyes are usually nitrophenylenediamines, nitroaminophenols, azo dyes, anthraquinones, triarylmethane dyes or indophenols.

The substantive dyes for the purposes 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 to be regarded as pigments. The substantive dyes for the purposes of the present invention preferably have a solubility in water (760 mmHg) at 25° C. of more than 1 g/l.

Direct dyes can be divided into anionic, cationic and nonionic direct dyes.

In a further preferred embodiment, the method is characterized in that agent (a) and/or agent (b) also contains at least one anionic, cationic and/or nonionic direct dye as the coloring compound.

In a further preferred embodiment, the method is characterized in that agent (a) and/or agent (b) also contains at least one color-providing compound from the group of anionic, nonionic and/or cationic direct dyes.

Examples of suitable cationic direct dyes are Basic Blue 7, Basic Blue 26, Basic Violet 2 and 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

Examples of nonionic direct dyes which can be used are nonionic nitro and quinone dyes and neutral azo dyes. Suitable nonionic direct dyes are those under the international designations or trade names HC Yellow 2, HC Yellow 4, HC Yellow 5, HC Yellow 6, HC Yellow 12, 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 known compounds, as well as 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-nitrobenzene, 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 its salts, 2-amino-6-chloro-4-nitrophenol, 4-ethylamino-3-nitrobenzoic acid and 2-chloro-6- etc hylamino-4-nitrophenol.

In the course of the work leading to this invention, it turned out that colorations with a particularly high color intensity can be produced, in particular with means (a) and/or (b) which contain at least one anionic direct dye.

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

Anionic direct dyes are also referred to as acid dyes. Acid dyes are understood as meaning direct dyes which have at least one carboxylic acid group (—COOH) and/or one sulfonic acid group (—SO ₃ H). Depending on the pH value, the protonated forms (-COOH, -SO ₃ H) of the carboxylic acid or sulfonic acid groups are in equilibrium with their deprotonated forms (-COO-, -SO ₃ before). As the pH decreases, the proportion of the protonated forms increases. If substantive dyes are used in the form of their salts, the carboxylic acid groups or sulfonic acid groups are present in deprotonated form and are neutralized with appropriate stoichiometric equivalents of cations to maintain electroneutrality. The acid dyes can also be used in the form of their sodium salts and/or their potassium salts.

The acid dyes for the purposes 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 to be regarded as pigments. The acid dyes for the purposes of the present invention preferably have a solubility in water (760 mmHg) at 25° C. of more than 1 g/l.

The alkaline earth metal salts (such as, for example, calcium salts and magnesium salts) or aluminum salts of acid dyes often have poorer solubility than the corresponding alkali metal salts. If the solubility of these salts is below 0.5 g/L (25 °C, 760 mmHg), they do not fall under the definition of a substantive dye.

An essential feature of acid dyes is their ability to form anionic charges, with the carboxylic acid or sulfonic acid groups responsible for this usually being linked to different chromophoric systems. Suitable chromophoric systems are found, for example, in the structures of nitrophenylenediamines, nitroaminophenols, azo dyes, anthraquinone dyes, triarylmethane dyes, xanthene dyes, rhodamine dyes, oxazine dyes and/or indophenol dyes.

In one embodiment, a method for coloring keratinic material is preferred, which is characterized in that agent (a) and/or agent (b) also contains at least one anionic direct dye as coloring compound, which is selected from Group of nitrophenylenediamines, nitroaminophenols, azo dyes, anthraquinone dyes, triarylmethane dyes, xanthene dyes, rhodamine dyes, oxazine dyes and/or indophenol dyes, where the dyes from the aforementioned group each have at least one carboxylic acid group (-COOH), a sodium carboxylate group (-COONa), a potassium carboxylate group (-COOK), a sulfonic acid group (-SO ₃ H), a sodium sulfonate group (-SO ₃ Na) and/or a potassium sulfonate group (-SO ₃ K).

One or more compounds from the following group can be selected as particularly suitable acid dyes, for example: 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° : C 54, 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 ;nosodium salt;Brown No.201;RESORCIN BROWN;ACID ORANGE 24;Japan Brown 201;D & C Brown No.1), Acid Red 14 ( C.I.14720), Acid Red 18 (E124, Red 18; CI 16255), Acid Red 27 (E 123, CI 16185, C-Red 46, Fast Red D, FD&C Red No.2, Food Red 9, Naphthol Red 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, Pyrosine B, Tetraiodofluorescein, Eosin J, Lodeosine), Acid Red 52 (CI 45100, Food Red 106, Solar Rhodamine B, Acid Rhodamine B, Red n° 106 Pontacyl Brilliant Pink), Acid Red 73 (CI CI 27290), Acid Red 87 (Eosin, CI 45380), Acid Red 92 (COLIPA n° C53, CI 45410), Acid Red 95 (CI 45425, Erythtosine, Simacid Erythrosine Y), Acid Red 184 (CI 15685), Acid Red 195, Acid Violet 43 (Jarocol Violet 43, Ext. D&C Violet n° 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 3 (Patent Blue V, CI 42051), Acid Blue 7 (CI 42080), Acid Blue 104 (CI 42735), Acid Blue 9 (E 133, Patent Blue AE, Amido Blue AE, Erioglaucin A, CI 42090, CI Food Blue 2), Acid Blue 62 (CI 62045), Acid Blue 74 (E 132, CI 73015), Acid Blue 80 (CI 61585), Acid Green 3 (CI 42085, Foodgreen1), Acid Green 5 (CI 42095), Acid Green 9 (CI 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 44090, Acid Brilliant Green BS, E 142), Acid Black 1 (Black n° 401, Naphthalene Black 10B, Amido Black 10B, CI 20 470, COLIPA n° B15), Acid Black 52 (CI 15711), Food Yellow 8 (CI 14270), 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.

• Acid Yellow 1 trägt den Namen 8-Hydroxy-5,7-dinitro-2-naphthalenesulfonsäure Dinatriumsalz und besitzt eine Löslichkeit in Wasser von mindestens 40 g/L (25°C).
• Acid Yellow 3 ist ein Gemisch der Natriumsalze von Mono- und Disulfonsäuren von 2-(2-Chinolyl)-1 H-indene-1,3(2H)-dion und besitzt eine Wasserlöslichkeit von 20 g/L (25 °C).
• Acid Yellow 9 ist das Dinatriumsalz der 8-Hydroxy-5,7-dinitro-2-naphthalenesulfonsäure, seine Wasserlöslichkeit liegt oberhalb von 40 g/L (25 °C).
• Acid Yellow 23 ist das Trinatriumsalz der4,5-Dihydro-5-oxo-1-(4-sulfophenyl)-4-((4-sulfophenyl)azo)-1 H-pyrazole-3-carbonsäure und bei 25 °C gut in Wasser löslich.
• Acid Orange 7 ist das Natriumsalz des 4-[(2-Hydroxy-1-naphthyl)azo]benzensulfonats. Seine Wasserlöslichkeit beträgt mehr als 7 g/L (25 °C).
• Acid Red 18 ist das Trinatriumsalz von 7-Hydroxy-8-[(E)-(4-sulfonato-1-naphthyl)-diazenyl)]-1,3-naphthalenedisulfonat und besitzt eine sehr hohe Wasserlöslichkeit von mehr als 20 Gew.-%.
• Acid Red 33 ist das Dinatriumsalz des 5-Amino-4-hydroxy-3-(phenylazo)-naphthalene-2,7-disulphonats, seine Wasserlöslichkeit liegt bei 2,5 g/L (25 °C).
• Bei Acid Red 92 handelt es sich um das Dinatriumsalz der 3,4,5,6-Tetrachloro-2-(1,4,5,8-tetrabromo-6-hydroxy-3-oxoxanthen-9-yl)benzoesäure, dessen Wasserlöslichkeit mit größer 10 g/L angegeben wird (25 °C).
• Acid Blue 9 ist das Dinatriumsalz von 2-({4-[N-ethyl(3-sulfonatobenzyl]amino]phenyl}{4-[(N-ethyl(3-sulfonatobenzyl)imino]-2,5-cyclohexadien-1-ylidene}methyl)-benzenesulfonat und besitzt eine Wasserlöslichkeit von mehr als 20 Gew.-% (25 °C).

The water solubility of the anionic direct dyes can be determined, for example, in the following way. 0.1 g of the anionic direct dye are placed in a beaker. A stir bar is added. Then 100 ml of water are added. This mixture is heated to 25°C on a magnetic stirrer with stirring. Stir for 60 minutes. The aqueous mixture is then assessed visually. If there are still undissolved residues, the amount of water is increased - for example in steps of 10 ml. Water is added until the amount of dye used has completely dissolved. If the dye-water mixture cannot be assessed visually due to the high intensity of the dye, the mixture is filtered. If a proportion of undissolved dyes remains on the filter paper, the solubility test is repeated with a larger amount of water. If 0.1 g of the anionic direct dye dissolves in 100 ml of water at 25 °C, the solubility of the dye is 1 g/L.

• Acid Yellow 1 is named 8-Hydroxy-5,7-dinitro-2-naphthalenesulfonic acid disodium salt and has a solubility in water of at least 40 g/L (25°C).
• Acid Yellow 3 is a mixture of the sodium salts of mono- and disulfonic acids of 2-(2-quinolyl)-1 H-indene-1,3(2H)-dione and has a water solubility of 20 g/L (25 °C).
• Acid Yellow 9 is the disodium salt of 8-hydroxy-5,7-dinitro-2-naphthalenesulfonic acid, its water solubility is above 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)-1 H-pyrazole-3-carboxylic acid and good in at 25 °C Water soluble.
• Acid Orange 7 is the sodium salt of 4-[(2-hydroxy-1-naphthyl)azo]benzenesulfonate. Its water solubility is more than 7 g/L (25 °C).
• Acid Red 18 is the trisodium salt of 7-hydroxy-8-[(E)-(4-sulfonato-1-naphthyl)diazenyl)]-1,3-naphthalenedisulfonate and has a very high water solubility of more than 20% by weight. %.
• Acid Red 33 is the disodium salt of 5-amino-4-hydroxy-3-(phenylazo)-naphthalene-2,7-disulphonate, its water solubility is 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-oxoxanthen-9-yl)benzoic acid, its water solubility specified as 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 water solubility of more than 20% by weight (25 °C).

A very particularly preferred method is therefore characterized in that agent (a) and/or agent (b) also contains at least one color-providing compound from the group of anionic direct dyes, which is selected from the group consisting of 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.

The substantive dye(s), in particular the anionic substantive dyes, can be used in different amounts in agent (a) and/or agent (b), depending on the desired color intensity. Particularly good results could be obtained if the agent (a) and/or the agent (b)—in each case based on its total weight—also contained one or more direct dyes as the coloring compound in a total amount of from 0.01 to 10% by weight. , preferably from 0.1 to 8% by weight, more preferably from 0.2 to 6% by weight and very particularly preferably from 0.5 to 4.5% by weight.

In a further preferred embodiment, the method is characterized in that the agent (a) and/or the agent--based on the total weight of the agent (a) and/or the agent (b)--furthermore one or more direct dyes as the coloring compound in a total amount of from 0.01 to 10% by weight, preferably from 0.1 to 8% by weight, more preferably from 0.2 to 6% by weight and very particularly preferably from 0.5 to 4.5% % by weight.

1. 1. Verfahren zum Färben von keratinischem Material, insbesondere menschlichen Haaren, umfassend die folgenden Schritte:
   • - Anwendung eines Mittels (a) auf dem keratinischem Material, wobei das Mittel (a) enthält:
     • (a1) mindestens eine organische Siliciumverbindung aus der Gruppe der Silane mit einem, zwei oder drei Siliciumatomen,
     • (a2) mindestens ein Hydroxyacetophenon, und
     • (a3) mindestens eine farbgebende Verbindung, umfassend mindestens ein anorganisches Pigment, welches ausgewählt ist aus der Gruppe der farbigen Metalloxide, Metallhydroxide, Metalloxidhydrate, Silicate, Metallsulfide, komplexen Metallcyanide, Metallsulfate, Bronzepigmente und Mischungen daraus,
   • - Anwendung eines Mittels (b) auf dem keratinischen Material, wobei das Mittel (b) enthält:
     • (b1) mindestens ein Versiegelungsreagenz.
2. 2. Verfahren zum Färben von keratinischem Material, insbesondere menschlichen Haaren, umfassend die folgenden Schritte:
   • - Anwendung eines Mittels (a) auf dem keratinischem Material, wobei das Mittel (a) enthält:
     • (a1) mindestens eine organische Siliciumverbindung aus der Gruppe der Silane mit einem, zwei oder drei Siliciumatomen,
     • (a2) mindestens ein Hydroxyacetophenon, und
     • (a3) mindestens eine farbgebende Verbindung, umfassend mindestens ein anorganisches Pigment, welches ausgewählt ist aus der Gruppe der farbigen Metalloxide, Metallhydroxide, Metalloxidhydrate, Silicate, Metallsulfide, komplexen Metallcyanide, Metallsulfate, Bronzepigmente und Mischungen daraus und mindestens ein Pigment ausgewählt aus der Gruppe bestehend aus Pigmenten auf Basis eines lamellaren, metallischen Substratplättchens, Pigmenten auf Basis eines lentikularen, metallischen Substratplättchens, Pigmenten auf Basis eines metallischen Substratplättchens, das ein „vacuum metallized pigment“ (VMP) umfasst, und Mischungen daraus,
   • - Anwendung eines Mittels (b) auf dem keratinischen Material, wobei das Mittel (b) enthält:
     • (b1) mindestens ein Versiegelungsreagenz.
3. 3. Verfahren zum Färben von keratinischem Material, insbesondere menschlichen Haaren, umfassend die folgenden Schritte:
   • - Anwendung eines Mittels (a) auf dem keratinischem Material, wobei das Mittel (a) enthält:
     • (a1) mindestens eine organische Siliciumverbindung aus der Gruppe der Silane mit einem, zwei oder drei Siliciumatomen,
     • (a2) mindestens ein Hydroxyacetophenon, und
     • (a3) mindestens eine farbgebende Verbindung, umfassend mindestens ein anorganisches Pigment, welches ausgewählt ist aus der Gruppe der farbigen Metalloxide, Metallhydroxide, Metalloxidhydrate, Silicate, Metallsulfide, komplexen Metallcyanide, Metallsulfate, Bronzepigmente und Mischungen daraus und mindestens ein Pigment, umfassend α) ein Substratplättchen, umfassend Glimmer, und β) eine Beschichtung, umfassend mindestens eine erste Metalloxid(hydrat)schicht, umfassend TiO₂, SnO₂ und/oder Eisenoxid(e),
   • - Anwendung eines Mittels (b) auf dem keratinischen Material, wobei das Mittel (b) enthält:
     • (b1) mindestens ein Versiegelungsreagenz.
4. 4. Verfahren zum Färben von keratinischem Material, insbesondere menschlichen Haaren, umfassend die folgenden Schritte:
   • - Anwendung eines Mittels (a) auf dem keratinischem Material, wobei das Mittel (a) enthält:
     • (a1) mindestens eine organische Siliciumverbindung aus der Gruppe der Silane mit einem, zwei oder drei Siliciumatomen,
     • (a2) mindestens ein Hydroxyacetophenon, und
     • (a3) mindestens eine farbgebende Verbindung, umfassend mindestens ein anorganisches Pigment, welches ausgewählt ist aus der Gruppe der farbigen Metalloxide, Metallhydroxide, Metalloxidhydrate, Silicate, Metallsulfide, komplexen Metallcyanide, Metallsulfate, Bronzepigmente und Mischungen daraus,
   • - Anwendung eines Mittels (b) auf dem keratinischen Material, wobei das Mittel (b) enthält:
     • (b1) mindestens ein Versiegelungsreagenz, umfassend ein filmbildendes Polymer, und
     • (b2) mindestens eine farbgebende Verbindung, umfassend mindestens ein Pigment ausgewählt aus der Gruppe bestehend aus Pigmenten auf Basis eines lamellaren, metallischen Substratplättchens, Pigmenten auf Basis eines lentikularen, metallischen Substratplättchens, Pigmenten auf Basis eines metallischen Substratplättchens, das ein „vacuum metallized pigment“ (VMP) umfasst, und Mischungen daraus.
5. 5. Verfahren zum Färben von keratinischem Material, insbesondere menschlichen Haaren, umfassend die folgenden Schritte:
   • - Anwendung eines Mittels (a) auf dem keratinischem Material, wobei das Mittel (a) enthält:
     • (a1) mindestens eine organische Siliciumverbindung aus der Gruppe der Silane mit einem, zwei oder drei Siliciumatomen,
     • (a2) mindestens ein Hydroxyacetophenon, und
     • (a3) mindestens eine farbgebende Verbindung, umfassend mindestens ein anorganisches Pigment, welches ausgewählt ist aus der Gruppe der farbigen Metalloxide, Metallhydroxide, Metalloxidhydrate, Silicate, Metallsulfide, komplexen Metallcyanide, Metallsulfate, Bronzepigmente und Mischungen daraus,
   • - Anwendung eines Mittels (b) auf dem keratinischen Material, wobei das Mittel (b) enthält:
     • (b1) mindestens ein Versiegelungsreagenz, umfassend ein filmbildendes Polymer, und
     • (b2) mindestens eine farbgebende Verbindung, umfassend ein Pigment, umfassend α) ein Substratplättchen, umfassend Glimmer, und β) eine Beschichtung, umfassend mindestens eine erste Metalloxid(hydrat)schicht, umfassend TiO₂, SnO₂ und/oder Eisenoxid(e).
6. 6. Verfahren zum Färben von keratinischem Material, insbesondere menschlichen Haaren, umfassend die folgenden Schritte:
   • - Anwendung eines Mittels (a) auf dem keratinischem Material, wobei das Mittel (a) enthält:
     • (a1) mindestens eine organische Siliciumverbindung aus der Gruppe der Silane mit einem, zwei oder drei Siliciumatomen,
     • (a2) mindestens ein Hydroxyacetophenon, und
     • (a3) mindestens eine farbgebende Verbindung, umfassend mindestens ein anorganisches Pigment, welches ausgewählt ist aus der Gruppe der farbigen Metalloxide, Metallhydroxide, Metalloxidhydrate, Silicate, Metallsulfide, komplexen Metallcyanide, Metallsulfate, Bronzepigmente und Mischungen daraus,
   • - Anwendung eines Mittels (b) auf dem keratinischen Material, wobei das Mittel (b) enthält:
     • (b1) mindestens ein Versiegelungsreagenz, umfassend ein filmbildendes Polymer, und
     • (b2) mindestens eine farbgebende Verbindung, umfassend ein Pigment, umfassend α) ein Substratplättchen, umfassend Borosilikatglas, und β) eine Beschichtung, umfassend mindestens eine erste Metalloxid(hydrat)schicht, umfassend TiO₂, SnO₂, SiO₂, und/oder Eisenoxid(e).
7. 7. Verfahren zum Färben von keratinischem Material, insbesondere menschlichen Haaren, umfassend die folgenden Schritte:
   • - Anwendung eines Mittels (a) auf dem keratinischem Material, wobei das Mittel (a) enthält:
     • (a1) mindestens eine organische Siliciumverbindung aus der Gruppe der Silane mit einem, zwei oder drei Siliciumatomen,
     • (a2) mindestens ein Hydroxyacetophenon, und
     • (a3) mindestens eine farbgebende Verbindung, umfassend mindestens ein organisches Pigment, das ausgewählt ist aus der Gruppe bestehend aus Carmin, Chinacridon, Phthalocyanin, Sorgho, blauen Pigmenten mit den Color Index Nummern CI 42090, CI 69800, CI 69825, CI 73000, CI 74100, CI 74160, gelben Pigmenten mit den Color Index Nummern CI 11680, Cl 11710, CI 15985, CI 19140, CI 20040, CI 21100, CI 21108, CI 47000, CI 47005, grünen Pigmenten mit den Color Index Nummern CI 61565, CI 61570, CI 74260, orangen Pigmenten mit den Color Index Nummern CI 11725, CI 15510, CI 45370, CI 71105, roten Pigmenten mit den Color Index Nummern 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 und Mischungen daraus,
   • - Anwendung eines Mittels (b) auf dem keratinischen Material, wobei das Mittel (b) enthält:
     • (b1) mindestens ein Versiegelungsreagenz.
8. 8. Verfahren zum Färben von keratinischem Material, insbesondere menschlichen Haaren, umfassend die folgenden Schritte:
   • - Anwendung eines Mittels (a) auf dem keratinischem Material, wobei das Mittel (a) enthält:
     • (a1) mindestens eine organische Siliciumverbindung aus der Gruppe der Silane mit einem, zwei oder drei Siliciumatomen,
     • (a2) mindestens ein Hydroxyacetophenon, und
     • (a3) mindestens eine farbgebende Verbindung, umfassend mindestens ein organisches Pigment, das ausgewählt ist aus der Gruppe bestehend aus Carmin, Chinacridon, Phthalocyanin, Sorgho, blauen Pigmenten mit den Color Index Nummern CI 42090, CI 69800, CI 69825, CI 73000, CI 74100, CI 74160, gelben Pigmenten mit den Color Index Nummern CI 11680, Cl 11710, CI 15985, CI 19140, CI 20040, CI 21100, CI 21108, CI 47000, CI 47005, grünen Pigmenten mit den Color Index Nummern CI 61565, CI 61570, CI 74260, orangen Pigmenten mit den Color Index Nummern CI 11725, CI 15510, CI 45370, CI 71105, roten Pigmenten mit den Color Index Nummern 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 und Mischungen daraus, und mindestens ein Pigment ausgewählt aus der Gruppe bestehend aus Pigmenten auf Basis eines lamellaren, metallischen Substratplättchens, Pigmenten auf Basis eines lentikularen, metallischen Substratplättchens, Pigmenten auf Basis eines metallischen Substratplättchens, das ein „vacuum metallized pigment“ (VMP) umfasst, und Mischungen daraus,
   • - Anwendung eines Mittels (b) auf dem keratinischen Material, wobei das Mittel (b) enthält:
     • (b1) mindestens ein Versiegelungsreagenz.
9. 9. Verfahren zum Färben von keratinischem Material, insbesondere menschlichen Haaren, umfassend die folgenden Schritte:
   • - Anwendung eines Mittels (a) auf dem keratinischem Material, wobei das Mittel (a) enthält:
     • (a1) mindestens eine organische Siliciumverbindung aus der Gruppe der Silane mit einem, zwei oder drei Siliciumatomen,
     • (a2) mindestens ein Hydroxyacetophenon, und
     • (a3) mindestens eine farbgebende Verbindung, umfassend mindestens ein organisches Pigment, das ausgewählt ist aus der Gruppe bestehend aus Carmin, Chinacridon, Phthalocyanin, Sorgho, blauen Pigmenten mit den Color Index Nummern CI 42090, CI 69800, CI 69825, CI 73000, CI 74100, CI 74160, gelben Pigmenten mit den Color Index Nummern CI 11680, Cl 11710, CI 15985, CI 19140, CI 20040, CI 21100, CI 21108, CI 47000, CI 47005, grünen Pigmenten mit den Color Index Nummern CI 61565, CI 61570, CI 74260, orangen Pigmenten mit den Color Index Nummern CI 11725, CI 15510, CI 45370, CI 71105, roten Pigmenten mit den Color Index Nummern 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 und Mischungen daraus, und mindestens ein Pigment, umfassend α) ein Substratplättchen, umfassend Glimmer, und β) eine Beschichtung, umfassend mindestens eine erste Metalloxid(hydrat)schicht, umfassend TiO₂, SnO₂ und/oder Eisenoxid(e),
   • - Anwendung eines Mittels (b) auf dem keratinischen Material, wobei das Mittel (b) enthält:
     • (b1) mindestens ein Versiegelungsreagenz.
10. 10. Verfahren zum Färben von keratinischem Material, insbesondere menschlichen Haaren, umfassend die folgenden Schritte:
    • - Anwendung eines Mittels (a) auf dem keratinischem Material, wobei das Mittel (a) enthält:
      • (a1) mindestens eine organische Siliciumverbindung aus der Gruppe der Silane mit einem, zwei oder drei Siliciumatomen,
      • (a2) mindestens ein Hydroxyacetophenon, und
      • (a3) mindestens eine farbgebende Verbindung, umfassend mindestens ein organisches Pigment, das ausgewählt ist aus der Gruppe bestehend aus Carmin, Chinacridon, Phthalocyanin, Sorgho, blauen Pigmenten mit den Color Index Nummern CI 42090, CI 69800, CI 69825, CI 73000, CI 74100, CI 74160, gelben Pigmenten mit den Color Index Nummern CI 11680, Cl 11710, CI 15985, CI 19140, CI 20040, CI 21100, CI 21108, CI 47000, CI 47005, grünen Pigmenten mit den Color Index Nummern CI 61565, CI 61570, CI 74260, orangen Pigmenten mit den Color Index Nummern CI 11725, CI 15510, CI 45370, CI 71105, roten Pigmenten mit den Color Index Nummern 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 und Mischungen daraus,
    • - Anwendung eines Mittels (b) auf dem keratinischen Material, wobei das Mittel (b) enthält:
      • (b1) mindestens ein Versiegelungsreagenz, umfassend ein filmbildendes Polymer, und
      • (b2) mindestens eine farbgebende Verbindung, umfassend mindestens ein Pigment ausgewählt aus der Gruppe bestehend aus Pigmenten auf Basis eines lamellaren, metallischen Substratplättchens, Pigmenten auf Basis eines lentikularen, metallischen Substratplättchens, Pigmenten auf Basis eines metallischen Substratplättchens, das ein „vacuum metallized pigment“ (VMP) umfasst, und Mischungen daraus.
11. 11. Verfahren zum Färben von keratinischem Material, insbesondere menschlichen Haaren, umfassend die folgenden Schritte:
    • - Anwendung eines Mittels (a) auf dem keratinischem Material, wobei das Mittel (a) enthält:
      • (a1) mindestens eine organische Siliciumverbindung aus der Gruppe der Silane mit einem, zwei oder drei Siliciumatomen,
      • (a2) mindestens ein Hydroxyacetophenon, und
      • (a3) mindestens eine farbgebende Verbindung, umfassend mindestens ein organisches Pigment, das ausgewählt ist aus der Gruppe bestehend aus Carmin, Chinacridon, Phthalocyanin, Sorgho, blauen Pigmenten mit den Color Index Nummern CI 42090, CI 69800, CI 69825, CI 73000, CI 74100, CI 74160, gelben Pigmenten mit den Color Index Nummern CI 11680, Cl 11710, CI 15985, CI 19140, CI 20040, CI 21100, CI 21108, CI 47000, CI 47005, grünen Pigmenten mit den Color Index Nummern CI 61565, CI 61570, CI 74260, orangen Pigmenten mit den Color Index Nummern CI 11725, CI 15510, CI 45370, CI 71105, roten Pigmenten mit den Color Index Nummern 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 und Mischungen daraus,
    • - Anwendung eines Mittels (b) auf dem keratinischen Material, wobei das Mittel (b) enthält:
      • (b1) mindestens ein Versiegelungsreagenz, umfassend ein filmbildendes Polymer, und
      • (b2) mindestens eine farbgebende Verbindung, umfassend ein Pigment, umfassend α) ein Substratplättchen, umfassend Glimmer, und β) eine Beschichtung, umfassend mindestens eine erste Metalloxid(hydrat)schicht, umfassend TiO₂, SnO₂ und/oder Eisenoxid(e).
12. 12. Verfahren zum Färben von keratinischem Material, insbesondere menschlichen Haaren, umfassend die folgenden Schritte:
    • - Anwendung eines Mittels (a) auf dem keratinischem Material, wobei das Mittel (a) enthält:
      • (a1) mindestens eine organische Siliciumverbindung aus der Gruppe der Silane mit einem, zwei oder drei Siliciumatomen,
      • (a2) mindestens ein Hydroxyacetophenon, und
      • (a3) mindestens eine farbgebende Verbindung, umfassend mindestens ein organisches Pigment, das ausgewählt ist aus der Gruppe bestehend aus Carmin, Chinacridon, Phthalocyanin, Sorgho, blauen Pigmenten mit den Color Index Nummern CI 42090, CI 69800, CI 69825, CI 73000, CI 74100, CI 74160, gelben Pigmenten mit den Color Index Nummern CI 11680, Cl 11710, CI 15985, CI 19140, CI 20040, CI 21100, CI 21108, CI 47000, CI 47005, grünen Pigmenten mit den Color Index Nummern CI 61565, CI 61570, CI 74260, orangen Pigmenten mit den Color Index Nummern CI 11725, CI 15510, CI 45370, CI 71105, roten Pigmenten mit den Color Index Nummern 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 und Mischungen daraus,
    • - Anwendung eines Mittels (b) auf dem keratinischen Material, wobei das Mittel (b) enthält:
      • (b1) mindestens ein Versiegelungsreagenz, umfassend ein filmbildendes Polymer, und
      • (b2) mindestens eine farbgebende Verbindung, umfassend ein Pigment, umfassend α) ein Substratplättchen, umfassend Borosilikatglas, und β) eine Beschichtung, umfassend mindestens eine erste Metalloxid(hydrat)schicht, umfassend TiO₂, SnO₂, SiO₂, und/oder Eisenoxid(e).
13. 13. Verfahren zum Färben von keratinischem Material, insbesondere menschlichen Haaren, umfassend die folgenden Schritte:
    • - Anwendung eines Mittels (a) auf dem keratinischem Material, wobei das Mittel (a) enthält:
      • (a1) mindestens eine organische Siliciumverbindung aus der Gruppe der Silane mit einem, zwei oder drei Siliciumatomen,
      • (a2) mindestens ein Hydroxyacetophenon, und
      • (a3) mindestens eine farbgebende Verbindung aus der Gruppe der Pigmente und/oder der direktziehenden Farbstoffe, umfassend ein Pigment aus der Gruppe der Eisenoxidpigmente, wobei das Eisenoxidpigment einen Teilchendurchmesser im Bereich von 100 bis 1.000 nm, mehr bevorzugt 150 nm 700 nm, aufweist,
    • - Anwendung eines Mittels (b) auf dem keratinischen Material, wobei das Mittel (b) enthält:
      • (b1) mindestens ein Versiegelungsreagenz.
14. 14. Verfahren zum Färben von keratinischem Material, insbesondere menschlichen Haaren, umfassend die folgenden Schritte:
    • - Anwendung eines Mittels (a) auf dem keratinischem Material, wobei das Mittel (a) enthält:
      • (a1) mindestens eine organische Siliciumverbindung aus der Gruppe der Silane mit einem, zwei oder drei Siliciumatomen,
      • (a2) mindestens ein Hydroxyacetophenon, und
      • (a3) mindestens eine farbgebende Verbindung aus der Gruppe der Pigmente und/oder der direktziehenden Farbstoffe, umfassend ein Pigment aus der Gruppe der Eisenoxidpigmente, wobei das Eisenoxidpigment einen Teilchendurchmesser im Bereich von 100 bis 1.000 nm, mehr bevorzugt 150 nm 700 nm, aufweist und mindestens ein Pigment ausgewählt aus der Gruppe bestehend aus Pigmenten auf Basis eines lamellaren, metallischen Substratplättchens, Pigmenten auf Basis eines lentikularen, metallischen Substratplättchens, Pigmenten auf Basis eines metallischen Substratplättchens, das ein „vacuum metallized pigment“ (VMP) umfasst, und Mischungen daraus,
    • - Anwendung eines Mittels (b) auf dem keratinischen Material, wobei das Mittel (b) enthält:
      • (b1) mindestens ein Versiegelungsreagenz.
15. 15. Verfahren zum Färben von keratinischem Material, insbesondere menschlichen Haaren, umfassend die folgenden Schritte:
    • - Anwendung eines Mittels (a) auf dem keratinischem Material, wobei das Mittel (a) enthält:
      • (a1) mindestens eine organische Siliciumverbindung aus der Gruppe der Silane mit einem, zwei oder drei Siliciumatomen,
      • (a2) mindestens ein Hydroxyacetophenon, und
      • (a3) mindestens eine farbgebende Verbindung aus der Gruppe der Pigmente und/oder der direktziehenden Farbstoffe, umfassend ein Pigment aus der Gruppe der Eisenoxidpigmente, wobei das Eisenoxidpigment einen Teilchendurchmesser im Bereich von 100 bis 1.000 nm, mehr bevorzugt 150 nm 700 nm, aufweist,
    • - Anwendung eines Mittels (b) auf dem keratinischen Material, wobei das Mittel (b) enthält:
      • (b1) mindestens ein Versiegelungsreagenz, umfassend ein filmbildendes Polymer, und
      • (b2) mindestens eine farbgebende Verbindung aus der Gruppe der Pigmente und/oder der direktziehenden Farbstoffe, umfassend mindestens ein Pigment ausgewählt aus der Gruppe bestehend aus Pigmenten auf Basis eines lamellaren, metallischen Substratplättchens, Pigmenten auf Basis eines lentikularen, metallischen Substratplättchens, Pigmenten auf Basis eines metallischen Substratplättchens, das ein „vacuum metallized pigment“ (VMP) umfasst, und Mischungen daraus.

Preferred embodiments of the process with regard to the color-providing compounds are disclosed below:

1. 1. A method for dyeing keratinic material, in particular human hair, comprising the following steps:
   • - Application of an agent (a) to the keratin material, the agent (a) containing:
     • (a1) at least one organic silicon compound from the group of silanes having one, two or three silicon atoms,
     • (a2) at least one hydroxyacetophenone, and
     • (a3) at least one coloring 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,
   • - Application of an agent (b) to the keratinic material, the agent (b) containing:
     • (b1) at least one sealing reagent.
2. 2. Method for coloring keratinic material, in particular human hair, comprising the following steps:
   • - Application of an agent (a) to the keratin material, the agent (a) containing:
     • (a1) at least one organic silicon compound from the group of silanes having one, two or three silicon atoms,
     • (a2) at least one hydroxyacetophenone, and
     • (a3) at least one coloring 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 and at least one pigment selected from the group consisting of pigments based on a lamellar, metallic substrate flake, pigments based on a lenticular, metallic substrate flake, pigments based on a metallic substrate flake, which includes a "vacuum metallized pigment" (VMP), and mixtures thereof,
   • - Application of an agent (b) to the keratinic material, the agent (b) containing:
     • (b1) at least one sealing reagent.
3. 3. A method for dyeing keratinic material, in particular human hair, comprising the following steps:
   • - Application of an agent (a) to the keratin material, the agent (a) containing:
     • (a1) at least one organic silicon compound from the group of silanes having one, two or three silicon atoms,
     • (a2) at least one hydroxyacetophenone, and
     • (a3) at least one coloring 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 and at least one pigment comprising α). Substrate flakes, comprising mica, and β) a coating, comprising at least one first metal oxide (hydrate) layer, comprising TiO ₂ , SnO ₂ and/or iron oxide(s),
   • - Application of an agent (b) to the keratinic material, the agent (b) containing:
     • (b1) at least one sealing reagent.
4. 4. Method for coloring keratinic material, in particular human hair, comprising the following steps:
   • - Application of an agent (a) to the keratin material, the agent (a) containing:
     • (a1) at least one organic silicon compound from the group of silanes having one, two or three silicon atoms,
     • (a2) at least one hydroxyacetophenone, and
     • (a3) at least one coloring 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,
   • - Application of an agent (b) to the keratinic material, the agent (b) containing:
     • (b1) at least one sealing agent comprising a film-forming polymer, and
     • (b2) at least one color-providing compound comprising at least one pigment selected from the group consisting of pigments based on a lamellar, metallic substrate flake, pigments based on a lenticular, metallic substrate flake, pigments based on a metallic cal substrate platelet, which includes a "vacuum metallized pigment" (VMP), and mixtures thereof.
5. 5. A method for dyeing keratinic material, in particular human hair, comprising the following steps:
   • - Application of an agent (a) to the keratin material, the agent (a) containing:
     • (a1) at least one organic silicon compound from the group of silanes having one, two or three silicon atoms,
     • (a2) at least one hydroxyacetophenone, and
     • (a3) at least one coloring 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,
   • - Application of an agent (b) to the keratinic material, the agent (b) containing:
     • (b1) at least one sealing agent comprising a film-forming polymer, and
     • (b2) at least one coloring compound, comprising a pigment, comprising α) a substrate flake, comprising mica, and β) a coating, comprising at least a first metal oxide (hydrate) layer, comprising TiO ₂ , SnO ₂ and/or iron oxide(s) .
6. 6. A method for dyeing keratinic material, in particular human hair, comprising the following steps:
   • - Application of an agent (a) to the keratin material, the agent (a) containing:
     • (a1) at least one organic silicon compound from the group of silanes having one, two or three silicon atoms,
     • (a2) at least one hydroxyacetophenone, and
     • (a3) at least one coloring 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,
   • - Application of an agent (b) to the keratinic material, the agent (b) containing:
     • (b1) at least one sealing agent comprising a film-forming polymer, and
     • (b2) at least one coloring compound comprising a pigment comprising α) a substrate flake comprising borosilicate glass, and β) a coating comprising at least a first metal oxide (hydrate) layer comprising TiO ₂ , SnO ₂ , SiO ₂ , and/or iron oxide(s).
7. 7. A method for dyeing keratinic material, in particular human hair, comprising the following steps:
   • - Application of an agent (a) to the keratin material, the agent (a) containing:
     • (a1) at least one organic silicon compound from the group of silanes having one, two or three silicon atoms,
     • (a2) at least one hydroxyacetophenone, and
     • (a3) at least one color-providing compound comprising at least one organic pigment selected from the group consisting of carmine, quinacridone, phthalocyanine, sorghum, blue pigments with the Color Index numbers CI 42090, CI 69800, CI 69825, CI 73000, CI 74100, CI 74160, yellow pigments with the Color Index numbers CI 11680, Cl 11710, CI 15985, CI 19140, CI 20040, CI 21100, CI 21108, CI 47000, CI 47005, green pigments with the Color Index numbers CI 61565, CI 61570, CI 74260, orange pigments with the Color Index numbers CI 11725, CI 15510, CI 45370, CI 71105, red pigments with the 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
   • - Application of an agent (b) to the keratinic material, the agent (b) containing:
     • (b1) at least one sealing reagent.
8. 8. A method for dyeing keratinic material, in particular human hair, comprising the following steps:
   • - Application of an agent (a) to the keratin material, the agent (a) containing:
     • (a1) at least one organic silicon compound from the group of silanes having one, two or three silicon atoms,
     • (a2) at least one hydroxyacetophenone, and
     • (a3) at least one color-providing compound comprising at least one organic pigment selected from the group consisting of carmine, quinacridone, phthalocyanine, sorghum, blue pigments with the Color Index numbers CI 42090, CI 69800, CI 69825, CI 73000, CI 74100, CI 74160, yellow pigments with the Color Index numbers CI 11680, Cl 11710, CI 15985, CI 19140, CI 20040, CI 21100, CI 21108, CI 47000, CI 47005, green pigments with the Color Index numbers CI 61565, CI 61570, CI 74260, orange pigments with the Color Index numbers CI 11725, CI 15510, CI 45370, CI 71105, red pigments with the 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 at least one pigment selected from the group consisting of pigments based on a lamellar, metallic substrate plate tchens, pigments based on a lenticular, metallic substrate flake, pigments based on a metallic substrate flake, which includes a "vacuum metallized pigment" (VMP), and mixtures thereof,
   • - Application of an agent (b) to the keratinic material, the agent (b) containing:
     • (b1) at least one sealing reagent.
9. 9. Method for coloring keratinic material, in particular human hair, comprising the following steps:
   • - Application of an agent (a) to the keratin material, the agent (a) containing:
     • (a1) at least one organic silicon compound from the group of silanes having one, two or three silicon atoms,
     • (a2) at least one hydroxyacetophenone, and
     • (a3) at least one color-providing compound comprising at least one organic pigment selected from the group consisting of carmine, quinacridone, phthalocyanine, sorghum, blue pigments with the Color Index numbers CI 42090, CI 69800, CI 69825, CI 73000, CI 74100, CI 74160, yellow pigments with the Color Index numbers CI 11680, Cl 11710, CI 15985, CI 19140, CI 20040, CI 21100, CI 21108, CI 47000, CI 47005, green pigments with the Color Index numbers CI 61565, CI 61570, CI 74260, orange pigments with the Color Index numbers CI 11725, CI 15510, CI 45370, CI 71105, red pigments with the 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 at least one pigment comprising α) a substrate flake comprising mica, and β) a coating comprising at least a first metal oxide (hydrate) layer comprising TiO ₂ , SnO ₂ and/or iron oxide(s),
   • - Application of an agent (b) to the keratinic material, the agent (b) containing:
     • (b1) at least one sealing reagent.
10. 10. A method for dyeing keratinic material, in particular human hair, comprising the following steps:
    • - Application of an agent (a) to the keratin material, the agent (a) containing:
      • (a1) at least one organic silicon compound from the group of silanes having one, two or three silicon atoms,
      • (a2) at least one hydroxyacetophenone, and
      • (a3) at least one color-providing compound comprising at least one organic pigment selected from the group consisting of carmine, quinacridone, phthalocyanine, sorghum, blue pigments with the Color Index numbers CI 42090, CI 69800, CI 69825, CI 73000, CI 74100, CI 74160, yellow pigments with the Color Index numbers CI 11680, Cl 11710, CI 15985, CI 19140, CI 20040, CI 21100, CI 21108, CI 47000, CI 47005, green pigments with the Color Index numbers CI 61565, CI 61570, CI 74260, orange pigments with the Color Index numbers CI 11725, CI 15510, CI 45370, CI 71105, red pigments with the 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 27200 , CI 45380, CI 45410, CI 58000, CI 73360, CI 73915, CI 75470 and mixtures thereof,
    • - Application of an agent (b) to the keratinic material, the agent (b) containing:
      • (b1) at least one sealing agent comprising a film-forming polymer, and
      • (b2) at least one coloring compound comprising at least one pigment selected from the group consisting of pigments based on a lamellar, metallic substrate flake, pigments based on a lenticular, metallic substrate flake, pigments based on a metallic substrate flake, which is a "vacuum metallized pigment" (VMP) and mixtures thereof.
11. 11. A method for dyeing keratinic material, in particular human hair, comprising the following steps:
    • - Application of an agent (a) to the keratin material, the agent (a) containing:
      • (a1) at least one organic silicon compound from the group of silanes having one, two or three silicon atoms,
      • (a2) at least one hydroxyacetophenone, and
      • (a3) at least one color-providing compound comprising at least one organic pigment selected from the group consisting of carmine, quinacridone, phthalocyanine, sorghum, blue pigments with the Color Index numbers CI 42090, CI 69800, CI 69825, CI 73000, CI 74100, CI 74160, yellow pigments with the Color Index numbers CI 11680, Cl 11710, CI 15985, CI 19140, CI 20040, CI 21100, CI 21108, CI 47000, CI 47005, green pigments with the Color Index numbers CI 61565, CI 61570, CI 74260, orange pigments with the Color Index numbers CI 11725, CI 15510, CI 45370, CI 71105, red pigments with the 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
    • - Application of an agent (b) to the keratinic material, the agent (b) containing:
      • (b1) at least one sealing agent comprising a film-forming polymer, and
      • (b2) at least one coloring compound, comprising a pigment, comprising α) a substrate flake, comprising mica, and β) a coating, comprising at least a first metal oxide (hydrate) layer, comprising TiO ₂ , SnO ₂ and/or iron oxide(s) .
12. 12. A method for dyeing keratinic material, in particular human hair, comprising the following steps:
    • - Application of an agent (a) to the keratin material, the agent (a) containing:
      • (a1) at least one organic silicon compound from the group of silanes having one, two or three silicon atoms,
      • (a2) at least one hydroxyacetophenone, and
      • (a3) at least one color-providing compound comprising at least one organic pigment selected from the group consisting of carmine, quinacridone, phthalocyanine, sorghum, blue pigments with the Color Index numbers CI 42090, CI 69800, CI 69825, CI 73000, CI 74100, CI 74160, yellow pigments with the Color Index numbers CI 11680, Cl 11710, CI 15985, CI 19140, CI 20040, CI 21100, CI 21108, CI 47000, CI 47005, green pigments with the Color Index numbers CI 61565, CI 61570, CI 74260, orange pigments with the Color Index numbers CI 11725, CI 15510, CI 45370, CI 71105, red pigments with the 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
    • - Application of an agent (b) to the keratinic material, the agent (b) containing:
      • (b1) at least one sealing agent comprising a film-forming polymer, and
      • (b2) at least one coloring compound comprising a pigment comprising α) a substrate flake comprising borosilicate glass, and β) a coating comprising at least a first metal oxide (hydrate) layer comprising TiO ₂ , SnO ₂ , SiO ₂ , and/or iron oxide(s).
13. 13. A method for dyeing keratinic material, in particular human hair, comprising the following steps:
    • - Application of an agent (a) to the keratin material, the agent (a) containing:
      • (a1) at least one organic silicon compound from the group of silanes having one, two or three silicon atoms,
      • (a2) at least one hydroxyacetophenone, and
      • (a3) at least one coloring compound from the group of pigments and/or direct dyes, comprising a pigment from the group of iron oxide pigments, the iron oxide pigment having a particle diameter in the range from 100 to 1,000 nm, more preferably 150 nm 700 nm,
    • - Application of an agent (b) to the keratinic material, the agent (b) containing:
      • (b1) at least one sealing reagent.
14. 14. A method for dyeing keratinic material, in particular human hair, comprising the following steps:
    • - Application of an agent (a) to the keratin material, the agent (a) containing:
      • (a1) at least one organic silicon compound from the group of silanes having one, two or three silicon atoms,
      • (a2) at least one hydroxyacetophenone, and
      • (a3) at least one color-providing compound from the group of pigments and/or direct dyes, comprising a pigment from the group of iron oxide pigments, the iron oxide pigment having a particle diameter in the range from 100 to 1,000 nm, more preferably 150 nm 700 nm, and at least one pigment selected from the group consisting of pigments based on a lamellar, metallic substrate flake, pigments based on a lenticular, metallic substrate flake, pigments based on a metallic substrate flake which comprises a "vacuum metallized pigment" (VMP), and mixtures thereof,
    • - Application of an agent (b) to the keratinic material, the agent (b) containing:
      • (b1) at least one sealing reagent.
15. 15. A method for dyeing keratinic material, in particular human hair, comprising the following steps:
    • - Application of an agent (a) to the keratin material, the agent (a) containing:
      • (a1) at least one organic silicon compound from the group of silanes having one, two or three silicon atoms,
      • (a2) at least one hydroxyacetophenone, and
      • (a3) at least one coloring compound from the group of pigments and/or direct dyes, comprising a pigment from the group of iron oxide pigments, the iron oxide pigment having a particle diameter in the range from 100 to 1,000 nm, more preferably 150 nm 700 nm,
    • - Application of an agent (b) to the keratinic material, the agent (b) containing:
      • (b1) at least one sealing agent comprising a film-forming polymer, and
      • (b2) at least one coloring compound from the group of pigments and/or substantive dyes, comprising at least one pigment selected from the group consisting of pigments based on a lamellar, metallic substrate flake, pigments based on a lenticular, metallic substrate flake, based pigments a metallic substrate platelet that includes a "vacuum metallized pigment" (VMP), and mixtures thereof.

It has been shown that pigments from the group of iron oxide pigments can have an undesirable effect on the pH of the agent (a). This applies in particular to ground iron oxide pigments and even more so to ground iron oxide pigments with a small particle diameter, ie a particle diameter in the range from 100 to 1,000 nm. By using a hydroxyacetophenone (a2), in particular by using 4-hydroxyacetophenone, in the agent (a ) the pH of the agent can be adjusted and maintained in the optimal pH range for the reactions of the organosilicon compounds (a1) on the keratin material.

The agents can additionally contain one or more surfactants. The term surfactants is understood as meaning surface-active substances. A distinction is made between anionic surfactants consisting of a hydrophobic residue and a negatively charged hydrophilic head group, amphoteric surfactants, which carry both a negative and a compensating positive charge, cationic surfactants, which have a positively charged hydrophilic group in addition to a hydrophobic residue, and nonionic surfactants, which have no charges but rather strong dipole moments and are strongly hydrated in aqueous solution.

Zwitterionic surfactants are surface-active compounds which contain at least one quaternary ammonium group and at least one —COO ^(-) or —SO ₃ ^(-) group in the molecule. Particularly suitable zwitterionic surfactants are the so-called betaines, such as the N-alkyl-N,N-dimethylammonium glycinates, for example coconut alkyl dimethylammonium glycinate, N-acylaminopropyl-N,N-dimethylammonium glycinates, for example cocoacylaminopropyldimethylammonium glycinate, and 2-alkyl-3 carboxymethyl-3-hydroxyethylimidazolines each having 8 to 18 carbon atoms in the alkyl or acyl group, and cocoacylaminoethylhydroxyethylcarboxymethylglycinate. A preferred zwitterionic surfactant is the fatty acid amide derivative known by the INCI name Cocamidopropyl Betaine.

Ampholytic surfactants are surface-active compounds which, in addition to a C ₈ -C ₂₄ -alkyl or -acyl group, contain at least one free amino group and at least one --COOH or --SO ₃ H group in the molecule and are capable of forming inner salts . Examples of suitable ampholytic 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 with about 8 to 24 C -atoms in the alkyl group. Typical examples of amphoteric or zwitterionic surfactants are alkyl betaines, alkyl amido betaines, aminopropionates, aminoglycinates, imidazolinium betaines and sulfobetaines.

Particularly preferred ampholytic surfactants are N-cocoalkylaminopropionate, cocoacylaminoethylaminopropionate and _C12 - _C18 -acylsarcosine.

The agents can also additionally contain at least one nonionic surfactant. Suitable nonionic surfactants are alkyl polyglycosides and alkylene oxide adducts with fatty alcohols and fatty acids with 2 to 30 moles of ethylene oxide per mole of fatty alcohol or fatty acid. Preparations with good properties are also obtained if they contain, as nonionic surfactants, fatty acid esters of ethoxylated glycerol which have been reacted with at least 2 moles of ethylene oxide. Particularly preferred nonionic surfactants are alkyl polyglycosides, especially alkyl polyglucosides.

• - quartäre Ammoniumverbindungen, die als hydrophobe Reste ein oder zwei Alkylketten mit einer Kettenlänge von 8 bis 28 C-Atomen tragen können,
• - quartäre Phosphoniumsalze, substituiert mit einer oder mehreren Alkylketten mit einer Kettenlänge von 8 bis 28 C-Atomen oder
• - tertiäre Sulfonium-Salze.

Furthermore, the agents can also contain at least one cationic surfactant. Cationic surfactants are understood as meaning surfactants, ie surface-active compounds, each with one or more positive charges. Cationic surfactants only contain positive charges. These surfactants are usually made up of a hydrophobic part and a hydrophilic head group, with the hydrophobic part usually consisting of a hydrocarbon skeleton (e.g. consisting of one or two linear or branched alkyl chains), and the positive charge(s) located in the hydrophilic head group. Examples of cationic surfactants are

• - quaternary ammonium compounds which can carry one or two alkyl chains with a chain length of 8 to 28 carbon atoms as hydrophobic radicals,
• - quaternary phosphonium salts substituted with one or more alkyl chains having a chain length of 8 to 28 carbon atoms or
• - tertiary sulfonium salts.

Furthermore, the cationic charge can also be part of a heterocyclic ring (eg an imidazolium ring or a pyridinium ring) in the form of an onium structure. In addition to the functional Unit that carries the cationic charge, the cationic surfactant can also contain other uncharged functional groups, as is the case, for example, with esterquats. The cationic 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 agent in question.

Furthermore, the agents can also contain at least one anionic surfactant. Surface-active agents with exclusively anionic charges (neutralized by a corresponding counter-cation) are referred to as anionic surfactants. Examples of anionic surfactants are fatty acids, alkyl sulfates, alkyl ether sulfates and ether carboxylic acids with 12 to 20 carbon atoms in the alkyl group and up to 16 glycol ether groups in the molecule.

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 agent in question.

Agent (a) and/or agent (b) may also contain a matting agent. Suitable matting agents include, for example, (modified) starches, waxes, talc and/or (modified) silicic acids. 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). Agent (a) preferably contains a matting agent.

Agent (a) and/or agent (b) may also contain a thickener.

When using the agents (a) and/or (b), they must not be too thin and drip down from the keratin material. For this reason it can be preferred that agent (a) and/or (b) contains a thickener.

Within the scope of one embodiment, a method for coloring keratinic material is therefore preferred, which is characterized in that agent (a) and/or agent (b) also contains a thickener.

Suitable thickeners include, for example, chemically modified celluloses such as propyl cellulose, methylethyl cellulose, carboxymethyl cellulose, hydroxyethyl cellulose, methylhydroxyethyl cellulose, ethylhydroxyethyl cellulose, hydroxypropyl cellulose, hydroxypropylmethyl cellulose, carboxymethylhydroxyethyl cellulose, sulfoethyl cellulose, carboxymethylsulfoethyl cellulose, hydroxypropylsulfoethyl cellulose, hydroxyethylsulfoethyl cellulose, methylethylhydroxyethyl cellulose, methylsulfoethyl cellulose and/or ethylsulfoethyl cellulose.

In a preferred embodiment, a method for coloring keratinic material is characterized in that agent (a) and/or agent (b) also contains a thickener selected from the group consisting of propyl cellulose, methylethyl cellulose, carboxymethyl cellulose, hydroxyethyl cellulose, methylhydroxyethyl cellulose, ethylhydroxyethyl cellulose, Hydroxypropyl cellulose, hydroxypropylmethyl cellulose, carboxymethylhydroxyethyl cellulose, sulfoethyl cellulose, carboxymethylsulfoethyl cellulose, hydroxypropylsulfoethyl cellulose, hydroxyethylsulfoethyl cellulose, methylethylhydroxyethyl cellulose, methylsulfoethyl cellulose, ethylsulfoethyl cellulose and mixtures thereof.

Particularly suitable thickeners are selected from hydroxyethyl cellulose, hydroxypropyl cellulose, hydroxypropylmethyl cellulose and mixtures thereof.

In a particularly preferred embodiment, a method for coloring keratinic material is characterized in that agent (a) and/or agent (b) also contains a thickener selected from the group consisting of hydroxyethyl cellulose, hydroxypropyl cellulose, hydroxypropylmethyl cellulose and mixtures thereof.

Other suitable thickening agents include galactomannans. Preferred galactomannans include galactomannans with the INCI designation Cyamopsis tetragonoloba gum (guar gum), galactomannans with the INCI designation Ceratonia Siliqua (Carob) Gum (Locust Bean Gum), galactomannans with the INCI designation Cassia Gum and galactomannans with the INCI designation Caesalpinia Spinosa Gum ( tara gum).

Accordingly, a method for coloring keratinic material is particularly preferred in which agent (a) and/or agent (b) also contains at least one galactomannan which is selected from the group consisting of galactomannans with the INCI name Cyamopsis tetragonoloba gum (guar gum ), galactomannans with the INCI designation Ceratonia Siliqua (Carob) Gum (Locust Bean Gum), galactomannans with the INCI designation Cassia Gum and galactomannans with the INCI designation Caesalpinia Spinosa Gum (Tara Gum). In a particularly preferred embodiment, the galactomannan comprises a galactomannan with the INCI name Caesalpinia Spinosa Gum (Tara Gum).

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

The agents can also contain other active ingredients, auxiliaries and additives, such as solvents, fat components such as C ₈ -C ₃₀ fatty acid triglycerides, C ₈ -C ₃₀ fatty acid monoglycerides, C ₈ -C ₃₀ fatty acid diglycerides and /or hydrocarbons; structurants such as glucose, maleic acid and lactic acid, hair conditioning compounds such as phospholipids, e.g. lecithin and cephalins; perfume oils, dimethylisosorbide and cyclodextrins; fiber structure-improving active ingredients, in particular mono-, di- and oligosaccharides such as glucose, galactose, fructose, fructose and lactose; dyes for coloring the agent; anti-dandruff agents such as Piroctone Olamine, Zinc Omadine and Climbazole; amino acids and oligopeptides; Protein hydrolyzates based on animals and/or plants, and in the form of their fatty acid condensation products or optionally anionically or cationically modified derivatives; vegetable oils; sunscreens and UV blockers; Active ingredients such as panthenol, pantothenic acid, pantolactone, allantoin, pyrrolidinone carboxylic acids and their salts, and bisabolol; Polyphenols, in particular hydroxycinnamic acids, 6,7-dihydroxycoumarins, hydroxybenzoic acids, catechins, tannins, leucoanthocyanidins, anthocyanidins, flavanones, flavones and flavonols; ceramides or pseudoceramides; vitamins, provitamins and vitamin precursors; plant extracts; fats and waxes such as fatty alcohols, beeswax, montan wax and paraffins; Swelling and penetrating substances such as glycerol, propylene glycol monoethyl ether, carbonates, hydrogen carbonates, guanidines, ureas and primary, secondary and tertiary phosphates; opacifiers 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, N ₂ O, dimethyl ether, CO ₂ and air.

The person skilled in the art will select these further substances in accordance with the desired properties of the agents. With regard to other optional components and the amounts of these components used, express reference is made to the relevant handbooks known to those skilled in the art. The additional active ingredients and auxiliaries are preferably used in the preparations according to the invention in amounts of 0.0001 to 25% by weight, in particular 0.0005 to 15% by weight, based on the total weight of the respective agent.

Process for coloring keratin materials

In the context of the method according to the invention, agents (a) and (b) are applied to the keratin materials, in particular to human hair. Thus, the means (a) and (b) are the ready-to-use means. The means (a) and (b) are different from each other.

Agents (a) and (b) can in principle be used simultaneously or successively, successive use being preferred.

The best results could be obtained if, in a first step, agent (a) was applied to the keratin materials and in a second step agent (b) was used.

• ◯ in einem ersten Schritt Anwendung eines Mittels (a) auf dem keratinischem Material, wobei das Mittel (a) enthält:
  • (a1) mindestens eine organische Siliciumverbindung aus der Gruppe der Silane mit einem, zwei oder drei Siliciumatomen, und
  • (a2) mindestens ein Hydroxyacetophenon, und
• ◯ in einem zweiten Schritt Anwendung eines Mittels (b) auf dem keratinischen Material, wobei das Mittel (b) enthält:
  • (b1) mindestens ein Versiegelungsreagenz,

wobei mindestens eines der Mittel (a) und (b) ferner mindestens eine farbgebende Verbindung aus der Gruppe der Pigmente und/oder der direktziehenden Farbstoffe enthält.A method for treating keratinic material, in particular for coloring keratinic material, in particular human hair, is therefore particularly preferred, comprising the following steps in the order given:

• ◯ in a first step application of an agent (a) to the keratin material, the agent (a) containing:
  • (a1) at least one organic silicon compound from the group of silanes having one, two or three silicon atoms, and
  • (a2) at least one hydroxyacetophenone, and
• ◯ in a second step application of an agent (b) to the keratin material, the agent (b) containing:
  • (b1) at least one sealing reagent,

where at least one of agents (a) and (b) also contains at least one color-providing compound from the group of pigments and/or substantive dyes.

In order to give the colored keratinic material a high resistance to being washed out over a longer period of time, agents (a) and (b) are also particularly preferably used within one and the same coloring process, which means that between the use of agents (a) and (b ) is a maximum period of a few hours.

In a further preferred embodiment, the method is characterized in that agent (a) is used first and then agent (b) is used, the period between the application of agents (a) and (b) being a maximum of 24 hours , preferably at most 12 hours and particularly preferably at most 6 hours.

A characteristic feature of agent (a) is its content of at least one reactive organic silicon compound (a1). The reactive organic silicon compound or compounds (a1) enter into an oligomerization or polymerization reaction and in this way functionalize the hair surface as soon as it comes into contact with it. In this way, a first film is formed. In the second step of the process, a second agent (b) is now applied to the hair. During the application of the agent (b), comprising at least one film-forming polymer as sealing agent (b1), this enters into an interaction with the silane film and in this way is bound to the keratinic materials. The formation of the silane film is positively influenced during the use of agent (b), comprising at least one alkalizing agent or acidifying agent as sealing agent (b1). The desired coloration of the keratinic material takes place with the aid of the color-providing compound in agent (a) and/or in agent (b). The coloring can be done with a colored silane film (the coloring compound is only in agent (a)), with a colored polymer film (the coloring compound is only in agent (b) and this contains a film-forming polymer as a sealing agent (b1)) or by a colored silane film and by a colored polymer film (agents (a) and (b) each contain at least one coloring compound and agent (b) contains a film-forming polymer as sealing agent (b1)).

• (1) Anwendung des Mittels (a) auf dem keratinischen Material,
• (2) Einwirken lassen des Mittels (a) für einen Zeitraum von 10 Sekunden bis 10 Minuten, bevorzugt von 10 Sekunden bis 5 Minuten,
• (3) gegebenenfalls Ausspülen des keratinischen Materials mit Wasser,
• (4) Anwendung des Mittels (b) auf dem keratinischen Material,
• (5) Einwirken lassen des Mittels (b) für einen Zeitraum von 30 Sekunden bis 30 Minuten, bevorzugt von 30 Sekunden bis 10 Minuten,
• (6) Ausspülen des keratinischen Materials mit Wasser.

Within the scope of a further embodiment, a method is particularly preferred which comprises the following steps in the order given

• (1) Application of the agent (a) on the keratin material,
• (2) allowing the agent (a) to act for a period of 10 seconds to 10 minutes, preferably 10 seconds to 5 minutes,
• (3) optionally rinsing out the keratinic material with water,
• (4) application of the agent (b) on the keratin material,
• (5) allowing the agent (b) to act for a period of 30 seconds to 30 minutes, preferably 30 seconds to 10 minutes,
• (6) Rinse the keratin material with water.

According to the invention, rinsing out the keratinic material with water in steps (3) and (6) of the method means that only water is used for the rinsing process, without the use of other agents other than agents (a) and (b). would apply.

In a step (1), the agent (a) is first applied to the keratin materials, in particular human hair.

After application, the agent (a) is allowed to act on the keratinic materials. In this connection, exposure times of 10 seconds to 10 minutes, preferably 20 seconds, have become effective up to 5 minutes and very particularly preferably from 30 seconds to 2 minutes on the hair have proven to be particularly advantageous.

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

Dyeings which were also good fastness to washing were obtained when agent (b) was applied to the keratinic materials to which agent (a) had still been applied.

In step (4), agent (b) is now applied to the keratinic materials. After application, the agent (b) is now allowed to act on the hair.

Even if the agent (b) is allowed to act for a short time, the process permits the production of colorations with particularly good intensity and fastness to washing. Exposure times of 10 seconds to 10 minutes, preferably 20 seconds to 5 minutes and very particularly preferably 30 seconds to 3 minutes on the hair have proven particularly advantageous.

In step (6), agent (b) (and any agent (a) still present) is then rinsed out of the keratinic material with water.

In the context of this embodiment, the sequence of steps (1) to (6) preferably takes place within 24 hours.

With the organic silicon compound or compounds, agent (a) contains a class of highly reactive compounds which, when used, can undergo hydrolysis or oligomerization and/or polymerization. Due to their high reactivity, these organic silicon compounds form a film on the keratin material.

In order to avoid premature oligomerization or polymerization, it is of considerable advantage for the user to prepare the ready-to-use agent (a) only shortly before use.

• (1) Herstellung eines Mittels (a) durch Vermischen eines ersten Mittels (a') und eines zweiten Mittels (a''), wobei
  • ◯ das erste Mittel (a') mindestens eine organische Siliciumverbindung (a1) aus der Gruppe der Silane mit einem, zwei oder drei Siliciumatomen enthält, und das zweite Mittel (a'') mindestens ein Hydroxyacetophenon (a2) und mindestens eine farbgebende Verbindung aus der Gruppe der Pigmente und/oder direktziehenden Farbstoffe enthält,
• (2) Anwendung des Mittels (a) auf dem keratinischen Material,
• (3) Einwirken lassen des Mittels (a) für einen Zeitraum von 10 Sekunden bis 10 Minuten, bevorzugt von 10 Sekunden bis 5 Minuten,
• (4) gegebenenfalls Ausspülen des keratinischen Materials mit Wasser,
• (5) Anwendung des Mittels (b) auf dem keratinischen Material,
• (6) Einwirken lassen des Mittels (b) für einen Zeitraum von 30 Sekunden bis 30 Minuten, bevorzugt von 30 Sekunden bis 10 Minuten,
• (7) Ausspülen des keratinischen Materials mit Wasser.

Within the scope of a further embodiment, preference is given to a method comprising the following steps in the order given

• (1) Preparation of an agent (a) by mixing a first agent (a') and a second agent (a''), wherein
  • ◯ the first agent (a') contains at least one organic silicon compound (a1) from the group of silanes with one, two or three silicon atoms, and the second agent (a'') contains at least one hydroxyacetophenone (a2) and at least one coloring compound from the group of pigments and/or substantive dyes,
• (2) application of the agent (a) on the keratinic material,
• (3) allowing the agent (a) to act for a period of 10 seconds to 10 minutes, preferably 10 seconds to 5 minutes,
• (4) optionally rinsing out the keratinic material with water,
• (5) application of the agent (b) on the keratin material,
• (6) allowing the agent (b) to act for a period of 30 seconds to 30 minutes, preferably 30 seconds to 10 minutes,
• (7) Rinse the keratin material with water.

In order to be able to provide a formulation that is as storage-stable as possible, the agent (a`) itself is preferably formulated with little or no water.

In a preferred embodiment, a method is characterized in that agent (a`) - based on the total weight of agent (a`) - has a water content of 0.001 to 10% by weight, preferably 0.5 to 9% by weight. %, more preferably from 1 to 8% by weight and most preferably from 1.5 to 7% by weight.

The agent (a'') may contain water.

Agent (a'') can also contain a thickener. Within this embodiment it is preferred that the agent (a'') comprises a thickener selected from the group consisting of hydroxyethyl cellulose, hydroxypropyl cellulose, hydroxypropylmethyl cellulose and mixtures thereof.

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

For example, the user can first stir or shake agent (a′), which contains the organic silicon compound(s) (a1), with agent (a″). The user can now apply this mixture of (a′) and (a″) to the keratinic materials—either directly after it has been produced or after a short reaction time of 10 seconds to 30 minutes. Following this, the user can apply the means (b) as described above.

It can be preferred that an agent (a''') is also used in the method, which contains a coloring compound from the group of pigments and/or substantive dyes, comprising at least one pigment selected from the group consisting of based pigments a lamellar, metallic substrate flake, pigments based on a lenticular, metallic substrate flake, pigments based on a metallic substrate flake, which comprises a "vacuum metallized pigment" (VMP), and mixtures thereof.

In a preferred embodiment, a method is characterized in that the agent (a''') is at least one pigment selected from the group consisting of pigments based on a lamellar, metallic substrate flakes, pigments based on a lenticular, metallic substrate flakes, pigments based on a metallic substrate platelet, which includes a "vacuum metallized pigment" (VMP), and mixtures thereof.

• (1) Herstellung eines Mittels (a) durch Vermischen eines ersten Mittels (a`), eines zweiten Mittels (a") und eines dritten Mittels (a'''), wobei
  • ◯ das erste Mittel (a`) mindestens eine organische Siliciumverbindung (a1) aus der Gruppe der Silane mit einem, zwei oder drei Siliciumatomen enthält,
  • ◯ das zweite Mittel (a") mindestens ein Hydroxyacetophenon und mindestens eine farbgebende Verbindung aus der Gruppe der Pigmente und/oder direktziehenden Farbstoffe enthält, und
  • ◯ das dritte Mittel (a''') mindestens ein Pigment ausgewählt aus der Gruppe bestehend aus Pigmenten auf Basis eines lamellaren, metallischen Substratplättchens, Pigmenten auf Basis eines lentikularen, metallischen Substratplättchens, Pigmenten auf Basis eines metallischen Substratplättchens, das ein „vacuum metallized pigment“ (VMP) umfasst, und Mischungen daraus, enthält,
• (2) Anwendung des Mittels (a) auf dem keratinischen Material,
• (3) Einwirken lassen des Mittels (a) für einen Zeitraum von 10 Sekunden bis 10 Minuten, bevorzugt von 10 Sekunden bis 5 Minuten,
• (4) gegebenenfalls Ausspülen des keratinischen Materials mit Wasser,
• (5) Anwendung des Mittels (b) auf dem keratinischen Material,
• (6) Einwirken lassen des Mittels (b) für einen Zeitraum von 30 Sekunden bis 30 Minuten, bevorzugt von 30 Sekunden bis 10 Minuten,
• (7) Ausspülen des keratinischen Materials mit Wasser.

Within the scope of a further embodiment, particular preference is given to a method comprising the following steps in the order given

• (1) Preparation of an agent (a) by mixing a first agent (a`), a second agent (a") and a third agent (a'''), wherein
  • ◯ the first agent (a`) contains at least one organic silicon compound (a1) from the group of silanes with one, two or three silicon atoms,
  • ◯ the second agent (a") contains at least one hydroxyacetophenone and at least one coloring compound from the group of pigments and/or direct dyes, and
  • ◯ the third means (a''') at least one pigment selected from the group consisting of pigments based on a lamellar, metallic substrate flake, pigments based on a lenticular, metallic substrate flake, pigments based on a metallic substrate flake, which is a "vacuum metallized pigment “ (VMP) and mixtures thereof contains,
• (2) application of the agent (a) on the keratinic material,
• (3) allowing the agent (a) to act for a period of 10 seconds to 10 minutes, preferably 10 seconds to 5 minutes,
• (4) optionally rinsing out the keratinic material with water,
• (5) application of the agent (b) on the keratin material,
• (6) allowing the agent (b) to act for a period of 30 seconds to 30 minutes, preferably 30 seconds to 10 minutes,
• (7) Rinse the keratin material with water.

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

For example, the user can first stir or shake agent (a'') with agent (a''') and then stir the resulting mixture with agent (a'), which contains the organic silicon compound(s) (a1). or shake. This mixture of (a'), (a'') and (a''') can der Users now apply to the keratin materials - either directly after their production or after a short reaction time of 10 seconds to 20 minutes. Following this, the user can apply the means (b) as described above.

Multi-component packaging unit (kit-of-parts)

In order to increase user comfort, the user is preferably provided with all the means required in the form of a multi-component packaging unit (kit-of-parts).

• - einen ersten Container mit einem Mittel (a`), wobei das Mittel (a') enthält:
  • (a1) mindestens eine organische Siliciumverbindung aus der Gruppe der Silane mit einem, zwei oder drei Siliciumatomen, und
• - einen zweiten Container mit einem Mittel (a''), wobei das Mittel (a'') enthält:
  • (a2) mindestens ein Hydroxyacetophenon, und
• - einen dritten Container mit einem Mittel (b), wobei das Mittel (b) enthält:
  • (b1) mindestens ein Versiegelungsreagenz,

wobei die Bestandteile (a1), (a2) und (b1) im Detail oben offenbart wurden und mindestens eines der Mittel (a'') und (b) ferner mindestens eine farbgebende Verbindung aus der Gruppe der Pigmente und/oder der direktziehenden Farbstoffe enthält.A second object of the present invention is therefore a multi-component packaging unit (kit-of-parts) for coloring keratin material, which is made up separately from one another

• - a first container with a means (a`), where the means (a') contains:
  • (a1) at least one organic silicon compound from the group of silanes having one, two or three silicon atoms, and
• - a second container with a means (a''), where the means (a'') contains:
  • (a2) at least one hydroxyacetophenone, and
• - a third container with a means (b), the means (b) containing:
  • (b1) at least one sealing reagent,

wherein the components (a1), (a2) and (b1) have been disclosed in detail above and at least one of the agents (a'') and (b) also contains at least one color-providing compound from the group of pigments and/or direct dyes .

Within this embodiment, it is extremely preferred that agent (a″) also contains at least one color-providing compound from the group of pigments and/or substantive dyes.

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

The at least one hydroxyacetophenone (a2) contained in agent (a'') of the kit corresponds to the at least one hydroxyacetophenone (a2) that was also used in agent (a) of the method described above.

The sealing reagent (b1) contained in means (b) of the kit corresponds to the sealing reagent (b1) which was also used in means (b) of the method described above.

• - einen ersten Container mit einem Mittel (a`), wobei das Mittel (a`) enthält:
  • mindestens eine organische Siliciumverbindung (a1) aus der Gruppe der Silane mit einem, zwei oder drei Siliciumatomen, und
• - einen zweiten Container mit einem Mittel (a''), wobei das Mittel (a'') enthält:
  • (a2) mindestens ein Hydroxyacetophenon, eine farbgebende Verbindung aus der Gruppe der Pigmente und/oder der direktziehenden Farbstoffe, umfassend ein Eisenoxidpigment, und Wasser, und
• - einen dritten Container mit einem Mittel (b), wobei das Mittel (b) enthält:
  • (b1) mindestens ein Versiegelungsreagenz, wobei die Bestandteile (a1), (a2) und (b1) im Detail oben offenbart wurden.

Within the scope of a further embodiment, preference is given to a multi-component packaging unit (kit-of-parts) for coloring keratin material, which is made up separately from one another

• - a first container with a means (a`), where the means (a`) contains:
  • at least one organic silicon compound (a1) from the group of silanes having one, two or three silicon atoms, and
• - a second container with a means (a''), where the means (a'') contains:
  • (a2) at least one hydroxyacetophenone, a coloring compound from the group of pigments and/or substantive dyes, comprising an iron oxide pigment, and water, and
• - a third container with a means (b), the means (b) containing:
  • (b1) at least one sealing reagent, wherein components (a1), (a2) and (b1) have been disclosed in detail above.

• - einen ersten Container mit einem Mittel (a`), wobei das Mittel (a`) enthält:
  • mindestens eine organische Siliciumverbindung (a1) aus der Gruppe der Silane mit einem, zwei oder drei Siliciumatomen, und
• - einen zweiten Container mit einem Mittel (a''), wobei das Mittel (a'') enthält:
  • (a2) mindestens ein Hydroxyacetophenon und mindestens eine farbgebende Verbindung aus der Gruppe der Pigmente und/oder der direktziehenden Farbstoffe,
• - einen dritten Container mit einem Mittel (b), wobei das Mittel (b) enthält:
  • (b1) mindestens ein Versiegelungsreagenz, umfassend ein filmbildendes Polymer, und ferner mindestens eine farbgebende Verbindung aus der Gruppe der Pigmente und/oder der direktziehenden Farbstoffe,

wobei die Bestandteile (a1), (a2) und (b1) im Detail oben offenbart wurden.Within the scope of yet another embodiment, a multi-component packaging unit (kit-of-parts) for dyeing keratin material, comprehensively manufactured separately from one another, is preferred

• - a first container with a means (a`), where the means (a`) contains:
  • at least one organic silicon compound (a1) from the group of silanes having one, two or three silicon atoms, and
• - a second container with a means (a''), where the means (a'') contains:
  • (a2) at least one hydroxyacetophenone and at least one color-providing compound from the group of pigments and/or direct dyes,
• - a third container with a means (b), the means (b) containing:
  • (b1) at least one sealing agent, comprising a film-forming polymer, and also at least one color-providing compound from the group of pigments and/or direct dyes,

components (a1), (a2) and (b1) being disclosed in detail above.

• - einen ersten Container mit einem Mittel (a`), wobei das Mittel (a`) enthält:
  • mindestens eine organische Siliciumverbindung (a1) aus der Gruppe der Silane mit einem, zwei oder drei Siliciumatomen, und
• - einen zweiten Container mit einem Mittel (a''), wobei das Mittel (a'') enthält:
  • (a2) mindestens ein Hydroxyacetophenon und mindestens eine farbgebende Verbindung aus der Gruppe der Pigmente und/oder der direktziehenden Farbstoffe, umfassend ein Eisenoxidpigment,
• - einen dritten Container mit einem Mittel (a'''), wobei das Mittel (a''') enthält:
  • mindestens eine farbgebende Verbindung aus der Gruppe der Pigmente und/oder der direktziehenden Farbstoffe, umfassend mindestens ein Pigment ausgewählt aus der Gruppe bestehend aus Pigmenten auf Basis eines lamellaren, metallischen Substratplättchens,
  • Pigmenten auf Basis eines lentikularen, metallischen Substratplättchens, Pigmenten auf Basis eines metallischen Substratplättchens, das ein „vacuum metallized pigment“ (VMP) umfasst, und
  • Mischungen daraus,
• - einen vierten Container mit einem Mittel (b), wobei das Mittel (b) enthält:
  • (b1) mindestens ein Versiegelungsreagenz,

wobei die Bestandteile (a1), (a2) und (b1) im Detail oben offenbart wurden.Within the scope of yet another embodiment, a multi-component packaging unit (kit-of-parts) for dyeing keratin material, comprehensively manufactured separately from one another, is preferred

• - a first container with a means (a`), where the means (a`) contains:
  • at least one organic silicon compound (a1) from the group of silanes having one, two or three silicon atoms, and
• - a second container with a means (a''), where the means (a'') contains:
  • (a2) at least one hydroxyacetophenone and at least one color-providing compound from the group of pigments and/or substantive dyes, comprising an iron oxide pigment,
• - a third container with a means (a'''), where the means (a''') contains:
  • at least one coloring compound from the group of pigments and/or substantive dyes, comprising at least one pigment selected from the group consisting of pigments based on a lamellar, metallic substrate flake,
  • pigments based on a lenticular, metallic substrate flake, pigments based on a metallic substrate flake, which includes a "vacuum metallized pigment" (VMP), and
  • mixtures thereof,
• - a fourth container with a means (b), the means (b) containing:
  • (b1) at least one sealing reagent,

components (a1), (a2) and (b1) being disclosed in detail above.

It can be advantageous, particularly if agent (b) also comprises at least one coloring compound from the group of pigments and/or substantive dyes, to prepare ready-to-use agent (b) by mixing two agents (b') and (b''). ) to produce. Within this embodiment, the sealing reagent (b1) and the at least one color-providing compound from the group of pigments and/or direct dyes are formulated separately from one another.

• - einen ersten Container mit einem Mittel (a`), wobei das Mittel (a`) enthält:
  • mindestens eine organische Siliciumverbindung (a1) aus der Gruppe der Silane mit einem, zwei oder drei Siliciumatomen, und
• - einen zweiten Container mit einem Mittel (a''), wobei das Mittel (a'') enthält:
  • (a2) mindestens ein Hydroxyacetophenon und ggf. mindestens eine farbgebende Verbindung aus der Gruppe der Pigmente und/oder der direktziehenden Farbstoffe,
• - einen dritten Container mit einem Mittel (b'), wobei das Mittel (b') enthält:
  • (b1) mindestens ein Versiegelungsreagenz, umfassend ein filmbildendes Polymer, und
• - einen vierten Container mit einem Mittel (b''), wobei das Mittel (b'') enthält:
  • mindestens eine farbgebende Verbindung aus der Gruppe der Pigmente und/oder der direktziehenden Farbstoffe,

wobei die Bestandteile (a1), (a2) und (b1) im Detail oben offenbart wurden.Within the scope of this further embodiment, preference is given to a multi-component packaging unit (kit-of-parts) for coloring keratin material, which is made up separately from one another

• - a first container with a means (a`), where the means (a`) contains:
  • at least one organic silicon compound (a1) from the group of silanes having one, two or three silicon atoms, and
• - a second container with a means (a''), where the means (a'') contains:
  • (a2) at least one hydroxyacetophenone and optionally at least one coloring compound from the group of pigments and/or substantive dyes,
• - a third container with a means (b'), the means (b') containing:
  • (b1) at least one sealing agent comprising a film-forming polymer, and
• - a fourth container with a means (b''), where the means (b'') contains:
  • at least one coloring compound from the group of pigments and/or direct dyes,

components (a1), (a2) and (b1) being disclosed in detail above.

In the above-mentioned embodiments, it can be preferred that agents (a''), (b') and/or (b) also contain a thickener.

Correspondingly, a multi-component packaging unit (kit-of-parts) is preferred in which the agent (a″) comprises a thickener selected from the group consisting of hydroxyethyl cellulose, hydroxypropyl cellulose, hydroxypropylmethyl cellulose and mixtures thereof.

A multi-component packaging unit (kit-of-parts) is also preferred, in which the agent (b) comprises a thickener selected from the group consisting of ethyl cellulose, hydroxypropyl cellulose, hydroxypropylmethyl cellulose and mixtures thereof.

A multi-component packaging unit (kit-of-parts) is also preferred in which agent (a'') and agent (b) each comprise a thickener selected from the group consisting of ethyl cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose, hydroxypropylmethyl cellulose and mixtures thereof include.

A multi-component packaging unit (kit-of-parts) is also preferred, in which agent (a'') and agent (b`) are each a thickener selected from the group consisting of ethyl cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose, hydroxypropylmethyl cellulose and mixtures include from it.

Regarding the other preferred embodiments of the multi-component packaging unit, what was said about the method applies mutatis mutantis.

Already when mixing the agents (a') and (a'') or when mixing the agents (a'), (a'') and (a'''), oligo- and polymerization reactions of the organic silicon compound (a1) are triggered.

It turned out to be a great challenge to optimally adapt the oligo and polymerization rate of the organic silicon compound (a1), i.e. the rate at which the silane film forms on the keratin material, to the application conditions.

For example, when applied to human hair, if the oligo and polymerisation rate is too fast, the polymerisation will be completed before all hair sections can be treated. If the polymerisation is too rapid, a full-head treatment is impossible. In the dyeing process, the rapid polymerization is reflected in an uneven color result, so that the areas that were last treated are only imperfectly dyed.

On the other hand, if the polymerization proceeds too slowly, all areas of the keratin material can be treated without time pressure, but this increases the application time.

Surprisingly, it has been found that the presence of a hydroxyacetophenone in agent (a) not only leads to improved adhesion of the coloring compound to the keratin material, but also to an optimal oligomerization and polymerization rate of the organic silicon compound (a1).

examples

example 1

The following formulations were prepared (unless otherwise stated, all figures are in % by weight) mean (a') mean (a`) wt% (3-aminopropyl)triethoxysilane (a1) 24 Methyltriethoxysilane (a1) 72 Water to 100 mean (a'') mean (a'') wt% Iron oxide red (CI 77491, ø = 150 - 700 nm) 10 4-Hydroxyacetophenone (a2) 0.4 decyl glucosides 10 Water to 100

The ready-to-use composition (a) was prepared by mixing 5 g of composition (a') and 15 g of composition (a"). The pH of composition (a) was 10.5. Composition (b) Medium (b) wt% Ethylene/Sodium Acrylate Copolymer (b1) (25% solution) 15 hydroxyethyl cellulose 2 Water to 100

The agent (a) was massaged into a strand of hair (Kerling, European natural hair white) and left to act for 1 minute. Thereafter, agent (a) was rinsed out with water.

Thereafter, agent (b) was applied to the strand of hair, left to act for 5 minutes and then rinsed out with water as well.

QUOTES INCLUDED IN DESCRIPTION

This list of documents cited by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Patent Literature Cited

• EP 2168633 B1 [0007]

Claims (15)

Process for coloring keratinic material, in particular human hair, comprising the following steps: - Application of an agent (a) to the keratin material, the agent (a) containing: (a1) at least one organic silicon compound from the group of silanes having one, two or three silicon atoms, and (a2) at least one hydroxyacetophenone, - Application of an agent (b) to the keratinic material, the agent (b) containing: (b1) at least one sealing agent, where at least one of the agents (a) and (b) also contains at least one color-providing compound from the group of pigments and/or direct dyes. procedure after claim 1 , characterized in that the agent (a) contains at least one organic silicon compound (a1) of the formula (I) and/or (II). R ₁ R ₂ NL-Si(OR ₃ ) _a (R ₄ ) _b (I), where - R ₁ , R ₂ independently represent 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 independently represent a C ₁ -C ₆ alkyl group, - a, represents an integer from 1 to 3, and - b represents the integer 3 - a, and wherein in the organic silicon compound of formula (II) (R ₅ O) _c (R ₆ ) _d Si-(A) _e -[NR ₇ -(A')] _f -[O-(A'')] _g -[NR ₈ -(A''') ] _h -Si(R ₆ ') _d' (OR ₅ ')c' (II), - R5, R5', R5'', R6, R6' and R6'' independently represent a C ₁ -C ₆ alkyl group, - A, A', A'', A''' and A'''' independently represent a linear or branched, divalent C ₁ -C ₂₀ -alkylene group, - R ₇ and R ₈ independently represent a hydrogen atom, a C ₁ -C ₆ -alkyl group, a hydroxy-C ₁ -C ₆ -alkyl group , a C ₂ -C ₆ alkenyl group, an amino-C ₁ -C ₆ -alkyl group or a group of formula (III). - (A'''')-Si( _R6 '') _d ''( _OR5 '') _c '' (III), - 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'' is an integer from 1 to 3, - d'' is the integer 3 - c'', - e is 0 or 1, - f is 0 or 1, - g is 0 or 1, - h is 0 or 1, with the proviso that at least one of e, f, g and h is different from 0. Procedure according to one of Claims 1 until 2 , characterized in that the agent (a) contains at least one organic silicon compound (a1) of the formula (I), R ₁ R ₂ NL-Si(OR ₃ ) _a (R ₄ ) _b (I), where - R ₁ , R ₂ both stand for a hydrogen atom, and - L for a linear, divalent C ₁ -C ₆ -alkylene group, preferably for a propylene group (-CH ₂ -CH ₂ -CH ₂ -) or for an ethylene group ( -CH ₂ -CH ₂ -), - R ₃ , R ₄ independently represent a methyl group or an ethyl group, - a represents the number 3 and - b represents the number 0. Procedure according to one of Claims 1 until 3 , characterized in that the agent (a) contains at least one organic silicon compound (a1) of the formula (I) which is selected from the group consisting 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. Procedure according to one of Claims 1 until 4 , characterized in that the agent (a) contains at least one organic silicon compound (a1) of the formula (II), (R ₅ O) _c (R ₆ ) _d Si-(A) _e -[NR ₇ -(A') _f ]-[O-(A'')] _g -[NR ₈ -(A''') ] _h -Si(R ₆ ') _d' (OR ₅ ')c' (II), where - e and f both represent the number 1, - g and h both represent the number 0, - A and A' independently represent a linear, divalent C ₁ -C ₆ -alkylene group and - R7 represents a hydrogen atom, a methyl group, a 2-hydroxyethyl group, a 2-alkenyl group, a 2-aminoethyl group or a group of formula (III). Procedure according to one of Claims 1 until 5 , characterized in that the agent (a) contains at least one organic silicon compound (a1) of the formula (IV). _R9 Si( _OR10 ) _k ( _R11 )m (IV), where - R ₉ represents a C ₁ -C ₁₈ alkyl group, - R ₁₀ represents a hydrogen atom or a C ₁ -C ₆ alkyl group, - R ₁₁ represents a C ₁ -C ₆ alkyl group, - k represents an integer number from 1 to 3, and - m is the integer 3 - k. Procedure according to one of Claims 1 until 6 , characterized in that the agent (a) contains at least one organic silicon compound (a1) of the formula (IV), which is selected from the group consisting of - methyltrimethoxysilane - methyltriethoxysilane - ethyltrimethoxysilane - ethyltriethoxysilane - propyltrimethoxysilane - propyltriethoxysilane - hexyltrimethoxysilane - hexyltriethoxysilane - octyltrimethoxysilane - Octyltriethoxysilane - dodecyltrimethoxysilane, - dodecyltriethoxysilane, - octadecyltrimethoxysilane, - octadecyltriethoxysilane and - mixtures thereof. Procedure according to one of Claims 1 until 7 , characterized in that the agent (a) contains at least two structurally different organic silicon compounds (a1). Procedure according to one of Claims 1 until 8th , characterized in that the sealing agent comprises a compound selected from the group consisting of film-forming polymers, alkalizing agents, acidifying agents and mixtures thereof. Procedure according to one of Claims 1 until 9 , characterized in that the at least one hydroxyacetophenone is selected from the group consisting of 2-hydroxyacetophenone, 3-hydroxyacetophenone, 4-hydroxyacetophenone and mixtures thereof. Procedure according to one of Claims 1 until 10 , characterized in that the at least one hydroxyacetophenone comprises 4-hydroxyacetophenone. Procedure according to one of Claims 1 until 11 , characterized in that the agent (a) further comprises at least one coloring compound from the group of pigments and/or substantive dyes, wherein the coloring compound comprises a pigment from the group of iron oxide pigments and wherein the iron oxide pigment has a particle diameter in the range of 100 to 1000 nm, more preferably 150 nm 700 nm. Procedure according to one of Claims 1 until 12 , characterized in that the composition (a) contains at least 25% by weight and more preferably at least 30% by weight of water, based on its total weight. Procedure according to one of Claims 1 until 13 , characterized in that the agent (b) further comprises at least one coloring compound from the group of pigments and/or substantive dyes. Multi-component packaging unit (kit-of-parts) for coloring keratinic material, comprising made up separately from one another - a first container with a means (a'), the means (a') containing: (a1) at least one organic silicon compound from the group of silanes having one, two or three silicon atoms, and - a second container with a means (a''), where the means (a'') contains: (a2) at least one hydroxyacetophenone and - a third container with a means (b), the means (b) containing: (b1) at least one sealing reagent, where at least one of agents (a") and (b) also contains at least one color-providing compound from the group of pigments and/or substantive dyes.