WO2024256043A1 - Verfahren zum färben von keratinischen fasern, umfassend die färbung mit direktziehenden farbstoffen und die nachbehandlung mit c1-c6-alkoxy-silanen in einem lösungsmittelsystem - Google Patents
Verfahren zum färben von keratinischen fasern, umfassend die färbung mit direktziehenden farbstoffen und die nachbehandlung mit c1-c6-alkoxy-silanen in einem lösungsmittelsystem Download PDFInfo
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- WO2024256043A1 WO2024256043A1 PCT/EP2024/055879 EP2024055879W WO2024256043A1 WO 2024256043 A1 WO2024256043 A1 WO 2024256043A1 EP 2024055879 W EP2024055879 W EP 2024055879W WO 2024256043 A1 WO2024256043 A1 WO 2024256043A1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
- A61Q5/00—Preparations for care of the hair
- A61Q5/06—Preparations for styling the hair, e.g. by temporary shaping or colouring
- A61Q5/065—Preparations for temporary colouring the hair, e.g. direct dyes
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
- A61K8/33—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing oxygen
- A61K8/34—Alcohols
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
- A61K8/58—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing atoms other than carbon, hydrogen, halogen, oxygen, nitrogen, sulfur or phosphorus
- A61K8/585—Organosilicon compounds
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
- A61K2800/40—Chemical, physico-chemical or functional or structural properties of particular ingredients
- A61K2800/59—Mixtures
- A61K2800/592—Mixtures of compounds complementing their respective functions
- A61K2800/5922—At least two compounds being classified in the same subclass of A61K8/18
Definitions
- Henkel AG & Co. KGaA 2023P00100WO Process for dyeing keratin fibers comprising dyeing with direct dyes and aftertreatment with C 1 -C 6 -alkoxy silanes in a solvent system
- the subject matter of the present application is a process for dyeing keratin fibers, in particular human hair, in which a dye (F) and an aftertreatment agent (N) are applied to the keratin fibers.
- the dye (F) contains at least one direct dye
- the aftertreatment agent (N) is low in water, contains at least one C1-C6-alkoxy silane and at least one solvent. Changing the shape and color of keratin fibers, in particular human hair, is an important area of modern cosmetics.
- Oxidation dyes are usually used for permanent, intensive coloring with good fastness properties and good gray coverage. Such dyes contain oxidation dye precursors, so-called developer components and coupler components, which form the actual dyes under the influence of oxidizing agents such as hydrogen peroxide. Oxidation dyes are characterized by very long-lasting coloring results. When using direct dyes, already fully formed dyes diffuse from the dye into the hair fiber. In comparison to oxidative hair coloring, the colors obtained with direct dyes have a shorter shelf life and wash out more quickly. Colorings with direct dyes usually remain on the hair for a period of between 5 and 20 washes.
- FR 3081102 A1 describes a dyeing process in which hair is first dyed with a dye that contains at least one anionic, direct dye. Following this dyeing step, another agent is applied to the hair that contains two different organosilanes. This two-stage process is intended to produce dyes with good fastness properties on hair.
- the dyeing processes described in FR 3081102 A1 are said to have good application properties, but the wash fastness of the dyes produced using these processes still requires further optimization.
- the object of the present invention was to find a dyeing process based on direct dyes that provides dyes with improved wash fastness and improved leveling ability.
- a first subject matter of the present invention is a method for dyeing keratin fibers, in particular human hair, comprising the following steps in the order given: (1) applying a dye (F) to the keratin fibers, wherein the dye (F) contains: (F-1) one or more direct dyes, (2) allowing the dye (F) to act on the keratin fibers, (3) optionally rinsing out the dye (F), (4) applying a post-treatment agent (N) to the keratin fibers, wherein the post-treatment agent (N) contains - based on the total weight of the post-treatment agent (N): (N-1) one or more organic C 1 -C 6 -alkoxy-silanes and/or their condensation products, (N-2) less than 25.0% by weight of water, and (N-3) at least one solvent other than water, (5) allowing the After-treatment agent (N) onto the keratin fibers, and (6) optionally rinsing out the after-treatment agent (N
- Keratin fibers Keratin fibers are understood to mean hair, wool and fur. Keratin fibers are most preferably understood to mean human hair.
- the colorant (F) is applied to the keratin fibers or hair.
- the colorant (F) contains at least one direct dye (F-1). These are dyes that are absorbed directly onto the hair and do not require an oxidative process to form the color. Direct dyes are usually nitrophenylenediamines, nitroaminophenols, azo dyes, anthraquinones, triarylmethane dyes or indophenols.
- the direct dyes in the sense of the present invention have a solubility in water (760 mmHg) at 25 °C of more than 0.5 g/L and are therefore not to be regarded as pigments.
- the direct dyes in the sense of the present invention preferably have a solubility in water (760 mmHg) at 25 °C of more than 1.0 g/L.
- the water solubility of the direct dyes can be determined, for example, in the following way. 0.1 g of the direct dye is placed in a beaker. A stirring bar is added. Then 100 ml of water is added. This mixture is heated to 25 °C on a magnetic stirrer while stirring. It is stirred for 60 minutes. The aqueous mixture is then visually assessed.
- 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 portion of undissolved dyes remains on the filter paper, the solubility test is repeated with a higher 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 1.0 g/L. Direct dyes can be divided into cationic, anionic and non-ionic direct dyes. When used in the process according to the invention, good color results with outstanding fastness properties could be achieved, particularly with cationic dyes (F-1).
- the process according to the invention is characterized in that the colorant (F) contains at least one direct dye (F-1) from the group of cationic, anionic and/or non-ionic direct dyes, particularly preferably from the group of cationic direct dyes.
- Preferred 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, Yellow 87, Basic Orange 31 and Basic Red 51.
- a process according to the invention is characterized in that the colorant (F) contains at least one cationic direct dye (F-1) which is selected from the group consisting of 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, Yellow 87, Basic Orange 31 and Basic Red 51.
- F-1 cationic direct dye
- Suitable anionic direct dyes are the compounds known under the international names or trade names bromophenol blue, tetrabromophenol blue, Acid Yellow 1, Yellow 10, Acid Yellow 23, Acid Yellow 36, Acid Orange 7, Acid Red 33, Acid Red 52, Pigment Red 57:1, Acid Blue 7, Acid Green 50, Acid Violet 43, Acid Black 1 and Acid Black 52.
- Suitable nonionic direct dyes include, for example, nonionic nitro and quinone dyes and neutral azo dyes.
- 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 as well as 1,4-diamino-2-nitrobenzene, 2-amino-4-nitrophenol, 1,4-bis-(2-hydroxyethyl)-amino-2-nitro-benzene, 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
- the direct dye(s), in particular the cationic direct dye(s), can be used in the colorant (F) in different amounts depending on the desired color intensity. Particularly good results were obtained when the colorant (F) - based on the total weight of the colorant (F) - contains one or more direct dye(s) in a total amount of 0.01 to 10.0% by weight, preferably 0.05 to 8.0% by weight, more preferably 0.1 to 6.0% by weight and most preferably 0.15 to 4.5% by weight.
- a method according to the invention is characterized in that the colorant (F) - based on the total weight of the colorant (F) - contains one or more direct dyes in a total amount of 0.01 to 10.0% by weight, preferably 0.05 to 8.0% by weight, more preferably 0.1 to 6.0% by weight and most preferably 0.15 to 4.5% by weight.
- the colorant (F) can be applied to moistened or dry keratin fibers. The application can be carried out, for example, with the aid of a brush, a brush or a nozzle, or the user can use his gloved hand to do this.
- the colorant (F) can optionally also contain other ingredients.
- the colorant (F) can also contain other active ingredients, auxiliaries and additives, such as cationic, non-ionic, amphoteric, zwitterionic and/or anionic surfactants, thickening polymers, film-forming polymers, structuring agents such as glucose, maleic acid and lactic acid, hair conditioning compounds such as phospholipids, for example lecithin and cephalins; perfume oils, dimethyl isosorbide 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 active ingredients such as piroctone olamine, zinc omadine and climbazole; amino acids and oligopeptides; Protein hydrolysates of animal and/or plant origin, as well as in the form of their fatty acid condensation products or, where appropriate, anionically or cationically modified derivatives;
- the additional active ingredients and auxiliary substances 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.
- Exposure of the dye (F) in step (2) the dye (F) is allowed to act on the keratin fibers or hair. Typical exposure times are, for example, 1 minute to 60 minutes, preferably 5 minutes to 45 minutes.
- the heat can be supplied by an external heat source, such as warm air from a hot air blower, or, in particular when dyeing hair, on a living test subject, using the body temperature of the test subject. In the latter case, the area to be dyed is usually covered with a hood. In particular, the temperature during the exposure time is between 10 °C and 45 °C, in particular between 20 °C and 40 °C.
- the rinsing step is optional and can be carried out in one embodiment, for example, with water or with water with the aid of a shampoo.
- the dye (F) is rinsed out after exposure in step (3).
- a method for dyeing keratin fibers, in particular human hair, is therefore preferred, comprising the following steps in the order given: (1) applying a dye (F) to the keratin fibers, the dye (F) containing: (F-1) one or more direct dyes, (2) allowing the dye (F) to act on the keratin fibers, (3) rinsing out the dye (F), (4) applying a post-treatment agent (N) to the keratin fibers, the post-treatment agent (N) containing - based on the total weight of the post-treatment agent (N): (N-1) one or more organic C 1 -C 6 -alkoxy-silanes and/or their condensation products, (N-2) less than 25.0% by weight of water, and (N-3) at least one solvent
- the method according to the invention is characterized by (2) allowing the colorant (F) to act on the keratin fibers for a period of 2 to 60 minutes, preferably 5 to 45 minutes, and particularly preferably 5 to 30 minutes, and (3) rinsing out the colorant (F). Applying the after-treatment agent (N) in step (4) If the colorant (F) is not rinsed out, the after-treatment agent (N) is applied in step (4) following step (2). In this embodiment, the after-treatment agent (N) is then applied to the hair still covered with the colorant. However, it is preferred if the colorant (F) is rinsed out before the after-treatment agent (N) is applied.
- Step (4) is applied to the keratin fibers following step (3).
- the application can be made to the hair that is still damp or towel-dried after rinsing, or the keratin fibers are dried between steps (3) and (4).
- a method according to the invention is therefore characterized by (4) applying a post-treatment agent (N) to towel-dried or dried keratin fibers. Particularly durable colors were obtained when the post-treatment agent (N) was applied to hair that was still damp or towel-dried.
- the post-treatment agent (N) itself is low in water or water-free, the amount of water still in the hair supports the condensation of the organic C 1 -C 6 alkoxysilanes directly on the surface of the keratin. In this way, a particularly uniform and resistant coating is formed, which tightly envelops the hair fiber and which is created directly at the point where the film is supposed to be.
- Moistened or towel-dried hair is understood to mean hair that has been completely wetted with water at the sink or in the shower, then squeezed out and rubbed dry with a towel (e.g. for 30 seconds). Moistened or towel-dried hair is therefore no longer dripping wet, but still moist.
- the method according to the invention is characterized by (4) applying the after-treatment agent (N) to keratin fibers that are still moist or towel-dried.
- the dye (F) is washed out a maximum of 30 minutes, preferably a maximum of 10 minutes, before the application of the after-treatment agent (N).
- the aftertreatment agent (N) is characterized in that it contains - based on its total weight - (N-1) one or more organic C 1 -C 6 -alkoxysilanes and/or their condensation products, and (N-2) less than 25.0 wt.% water, and (N-3) at least one solvent other than water.
- the organic C 1 -C 6 -alkoxysilane(s) (N-1) are therefore present in the aftertreatment agent (N) in a solvent-containing carrier and in a water-poor environment.
- the aftertreatment agent (N) contains one or more organic C 1 -C 6 -alkoxysilanes (N-1) and/or their condensation products.
- the organic C1-C6-alkoxysilanes (N-1) are reactive compounds.
- Organic silicon compounds, which are alternatively also referred to as organosilicon compounds, are compounds which 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.
- the organic C1-C6-alkoxysilanes according to the invention are compounds which contain one to three silicon atoms.
- the organic C1-C6 alkoxy silanes 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.
- organic silanes the hydrogen atoms are completely or partially replaced by organic groups such as (substituted) alkyl groups and/or alkoxy groups. In the organic silanes, some of the hydrogen atoms can also be replaced by hydroxyl groups.
- Organic C1 - C6 alkoxy silanes comprising at least one C1 - C6 alkoxy group which is directly bonded to the silicon atom. The alkoxy group is reactive and can first be hydrolyzed in the presence of water and then condensed with another organic C1-C6 alkoxy silane (or its hydrolysis product).
- the C1-C6 alkoxy group is preferably an ethoxy group or a methoxy 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.
- Particularly good results were obtained when the post-treatment agent (N) according to the invention contained at least one first organic C1-C6-alkoxy-silane (N-1) of the formula (I).
- a process according to the invention is characterized in that the post-treatment agent (N) contains at least one organic C1 - C6 -alkoxy- silane (N-1) of the formula (I) and/or its condensation products, R 1 R 2 NL-Si(OR 3 ) a (R 4 ) b (I), where - R1, R2 independently of one another represent a hydrogen atom or a C1-C6 alkyl group, - L represents a linear or branched, divalent C1 - C20 alkylene group, - R3 represents a hydrogen atom or a C1 - C6 alkyl group, - R4 represents a C1-C6 alkyl group, - a represents an integer from 1 to 3, and - b represents the integer 3 - a.
- the post-treatment agent (N) contains at least one organic C1 - C6 -alkoxy- silane (N-1) of the formula (I) and/or its condensation products, R 1 R 2
- Examples of a C1-C6 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 C2-C6-alkenyl group are vinyl, allyl, but-2-enyl, but-3-enyl and isobutenyl; preferred C2-C6-alkenyl radicals are vinyl and allyl.
- a hydroxy-C1-C6-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- C1 - C6 -alkyl group are the aminomethyl group, the 2-aminoethyl group and the 3-aminopropyl group. The 2-aminoethyl group is particularly preferred.
- Examples of a linear divalent C1-C20 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.
- divalent alkylene groups can also be branched. Examples of branched, divalent C3-C20 alkylene groups are (-CH2- CH(CH 3 )-) and (-CH 2 -CH(CH 3 )-CH 2 -).
- the radicals R1 and R2 independently of one another represent a hydrogen atom or a C1-C6 alkyl group. Most preferably, the radicals R 1 and R 2 both represent a hydrogen atom.
- the structural unit or the linker -L- which represents a linear or branched, divalent C1-C20 alkylene group.
- -L- represents a linear, divalent C 1 -C 20 alkylene group. More preferably, -L- represents a linear divalent C1-C6 alkylene group.
- -L- represents a methylene group (-CH2-), an ethylene group (-CH2-CH2-), a propylene group (-CH2-CH2-CH2-) or a butylene group (-CH 2 -CH 2 -CH 2 -CH 2 -).
- L is very particularly preferably a propylene group (-CH2-CH2-).
- the organic silicon compounds of the formula (I) R1R2N-L-Si(OR3)a(R4)b (I) according to the invention each have the silicon-containing group -Si(OR 3 ) a (R 4 ) b at one end.
- the radical R3 is a hydrogen atom or a C 1 -C 6 alkyl group
- the radical R 4 is a C 1 -C 6 alkyl group.
- R 3 and R 4 are particularly preferably each independently a methyl group or an ethyl group.
- a is an integer from 1 to 3
- b is the integer 3 - a. If a stands for the number 3, then b is 0. If a stands for the number 2, then b is 1. If a stands for the number 1, then b is 2.
- the agent according to the invention contains at least one first organic silicon compound (a1) of the formula (I) in which the radicals R 3 and R 4 independently of one another stand for a methyl group or an ethyl group. Furthermore, colorations with the best wash fastness properties could be obtained if the agent according to the invention contains at least one first organic silicon compound of the formula (I) in which the radical a stands for the number 3. In this case, the residue b stands for the number 0.
- an agent according to the invention is characterized in that it contains at least one first organic silicon compound (a1) of the formula (I), where - R 3 stands for a hydrogen atom, a methyl group or an ethyl group, and - R4 stands for a methyl group or an ethyl group, and - a stands for the number 3 and - b stands for the number 0.
- an aftertreatment agent (N) is characterized in that it contains at least one first organic silicon compound (N-1) of the formula (I), R 1 R 2 NL-Si(OR 3 ) a (R 4 ) b (I), where - R 1 , R 2 both represent a hydrogen atom, and - L represents a linear, divalent C1-C6-alkylene group, preferably a propylene group (-CH2-CH2-CH2-) or an ethylene group (-CH2-CH2-), - R 3 represents a hydrogen atom, a methyl group or an ethyl group, - R 4 represents a methyl group or an ethyl group, and - a represents the number 3 and - b represents the number 0.
- N-1 first organic silicon compound
- R 1 R 2 both represent a hydrogen atom
- - L represents a linear, divalent C1-C6-alkylene group, preferably a propylene group (-CH2-CH2-CH2-) or an ethylene group (
- Organic silicon compounds of the formula (I) which are particularly suitable for solving the problem according to the invention are - (3-aminopropyl)triethoxysilane - (3-Aminopropyl)trimethoxysilane - (2-Aminoethyl)triethoxysilane - (2-Aminoethyl)trimethoxysilane - (3-Dimethylaminopropyl)triethoxysilane - (3-Dimethylaminopropyl)trimethoxysilane -1-(3-Dimethylaminopropyl)silanetriol - (2-Dimethylaminoethyl)triethoxysilane.
- a process according to the invention is characterized in that the colorant (F) contains one or more organic C1-C6-alkoxysilanes (N-1) 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)triethoxy
- organic C1-C6-alkoxysilanes of the formula (I) are commercially available.
- (3-Aminopropyl)trimethoxysilane can be purchased from Sigma-Aldrich, for example.
- (3-Aminopropyl)triethoxysilane is also commercially available from Sigma-Aldrich.
- the aftertreatment agent (N) according to the invention contains, in addition to or as an alternative to the organic C 1 -C 6 -alkoxysilanes of the formula (I), at least one organic C 1 -C 6 -alkoxysilane of the formula (II) R 5 Si(OR 6 ) k (R 7 ) m (II).
- the organic C1-C6-alkoxysilane(s) of the formula (II) can also be referred to as silanes of the alkyl-alkoxysilane or alkyl-hydroxysilane type, R 5 Si(OR 6 ) k (R 7 ) m (II), where - R 5 stands for a C 1 -C 12 alkyl group, - R 6 stands for a hydrogen atom or a C 1 -C 6 alkyl group, - R7 stands for a C1-C6 alkyl group, - k stands for an integer from 1 to 3, and - m stands for the integer 3 - k.
- a process according to the invention is characterized in that the aftertreatment agent (N) contains at least one organic C1-C6-alkoxysilane (F1) of the formula (II).
- R5Si(OR6)k(R7)m (II) where - R5 represents a C1-C12 alkyl group, - R6 represents a hydrogen atom or a C1-C6 alkyl group, - R7 represents a C1-C6 alkyl group, - k represents an integer from 1 to 3, and - m represents the integer 3 – k.
- a post-treatment agent (N) used in the process according to the invention is characterized in that, in addition to the organic C1-C6-alkoxysilane(s) of the formula (I), it contains at least one further organic C1-C6-alkoxysilane of the formula (II) R 5 Si(OR 6 ) k (R 7 ) m (II), where - R 5 stands for a C 1 -C 12 alkyl group, - R 6 stands for a hydrogen atom or a C 1 -C 6 alkyl group, - R7 stands for a C1-C6 alkyl group - k stands for an integer from 1 to 3, and - m stands for the integer 3 - k.
- the radical R 5 is a C 1 -C 12 alkyl group. This C1-C12 alkyl group is saturated and can be linear or branched. R 5 is preferably a linear C1-C8 alkyl group. R 5 is preferably 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 or an n-dodecyl group. R 5 is particularly preferably a methyl group, an ethyl group or an n-octyl group.
- the radical R 6 is a hydrogen atom or a C 1 -C 6 alkyl group.
- R 6 is particularly preferably a methyl group or an ethyl group.
- the radical R7 is a C1-C6 alkyl group.
- R7 is particularly preferably a methyl group or an ethyl group.
- k is an integer from 1 to 3 and m is the integer 3 - k. If k is the number 3, then m is 0. If k is the number 2, then m is 1. If k is the number 1, then m is 2.
- Dyes with the best wash fastness properties were obtained when a dye (F) was used in the process which contains at least one organic C1-C6 alkoxysilane of the formula (II) in which the radical k is the number 3.
- the radical m is the number 0.
- Organic silicon compounds of the formula (II) which are particularly suitable for solving the problem according to the invention are - methyltrimethoxysilane - Methyltriethoxysilane - Ethyltriethoxysilane - n-hexyltriethoxysilane - n-octyltriethoxysilane - n-dodecyltriethoxysilane.
- a process according to the invention is characterized in that the aftertreatment agent (N) contains one or more organic C 1 -C 6 -alkoxysilanes (N-1) from the group consisting of methyltrimethoxysilane, methyltriethoxysilane, ethyltrimethoxysilane, ethyltriethoxysilane, hexyltrimethoxysilane, hexyltriethoxysilane, octyltrimethoxysilane, octyltriethoxysilane, dodecyltrimethoxysilane, dodecyltriethoxysilane and/or their condensation products.
- N-1 organic C 1 -C 6 -alkoxysilanes
- an aftertreatment agent (N) according to the invention is characterized in that it contains at least a first organic C1-C6-alkoxy-silane of the formula (I), which is selected from the group consisting of (3-aminopropyl)triethoxysilane and (3-aminopropyl)trimethoxysilane, and additionally contains at least a second organic C1 - C6 -alkoxy-silane of the formula (II), which is selected from the group consisting of methyltrimethoxysilane, methyltriethoxysilane, ethyltrimethoxysilane, ethyltriethoxysilane, hexyltrimethoxysilane and hexyltriethoxysilane.
- the organic C1 - C6 -alkoxy-silanes described above are reactive compounds. To achieve particularly good dyeing results, it is particularly advantageous to use the organic C1-C6-alkoxy-silanes of the formula (I) and/or (II) in certain quantity ranges in the dyeing agent (F).
- the aftertreatment agent (N) according to the invention - based on the total weight of the agent - contains one or more organic C1-C6-alkoxysilanes (N-1) and/or their condensation products in a total amount of 0.1 to 30.0 wt. %, preferably 0.5 to 20.0 wt. %, more preferably 5.0 to 15.0 wt.
- a process according to the invention is therefore characterized in that the aftertreatment agent (N) - based on the total weight of the aftertreatment agent (N) - contains one or more organic C 1 -C 6 -alkoxysilanes (N-1) and/or their condensation products in a total amount of from 0.1 to 30.0% by weight, preferably from 0.5 to 20.0% by weight, more preferably from 5.0 to 15.0% by weight and very particularly preferably from 6.0 to 12.5% by weight.
- the organic C 1 -C 6 -alkoxysilanes (N-1) according to the invention are reactive compounds which can enter into a hydrolysis and condensation reaction with water.
- the reaction of the organic C 1 -C 6 -alkoxysilanes with water can take place in various ways. The reaction starts as soon as the C1-C6 alkoxy silanes come into contact with water by mixing.
- the precondensation can, for example, take place according to the following scheme: OH OH OMe OH H3C Si OMe + H3C Si OMe MeO Si O Si OMe + MeOH OMe OMe CH 3 CH 3
- Both partially hydrolyzed and fully hydrolyzed C 1 -C 6 alkoxysilanes can participate in the condensation reaction and undergo condensation with unreacted, partially or fully hydrolyzed C1-C6 alkoxysilanes.
- condensation reactions are, for example (shown using the mixture (3-aminopropyl)triethoxysilane and methyltrimethoxysilane): and/or and/or In the above example reaction schemes, the condensation to form a dimer is shown in each case, but further condensations to form oligomers with several silane atoms are also possible and also preferred.
- This hydrolysis or condensation reaction begins even in the presence of very small amounts of water, so the oligomers and/or condensation products of the aforementioned organic silicon compounds are also included in this invention.
- Another characteristic feature of the post-treatment agent (N) is its water content (N-2), which must be below 25% by weight. Based on its total weight, the post-treatment agent (N) therefore contains less than 25.0% by weight of water.
- the low water content in the post-treatment agent (N) guarantees the storage stability of the post-treatment agent (N) and also ensures that the organic C 1 -C 6 alkoxysilanes are still in reactive form and have not yet fully polymerized. If the complete crosslinking of the organic C1-C6 alkoxysilanes only takes place after the application of the post-treatment agent (N) to the keratin fibers, the film created during crosslinking is characterized by a particularly high level of robustness and resistance. Robust films are obtained even if the post-treatment agent (N) contains less than 25.0% by weight of water. It has proven to be preferable if the water content in the post-treatment agent (N) is reduced even further.
- the post-treatment agent (N) is particularly preferably formulated with such a low water content that the water content of the post-treatment agent (N) - based on the total weight of the post-treatment agent (N) - is in the range from 0 to 20.0% by weight, preferably from 0.1 to 10.0% by weight, more preferably from 0.1 to 5.0% by weight, and particularly preferably from 0.5 to 3.0% by weight of water (F3).
- a method according to the invention is characterized in that the post-treatment agent (N) - based on the total weight of the post-treatment agent (N) - contains 0 to 20.0 wt. %, preferably from 0.1 to 10.0 wt.
- the post-treatment agent (N) contains at least one solvent other than water (N-3).
- a solvent is a fixed term and is used in chemistry for a substance that is liquid at room temperature (20 °C) and that is capable of dissolving other chemical substances.
- the solvent(s) (N-3) lower the polarity of the post-treatment agent compared to water, prevent premature polymerization or film formation of the organic C1-C6 alkoxysilanes (N-1) and at the same time increase the storage stability of the post-treatment agent (N).
- the solvent (N-3) preferably forms the cosmetic carrier - either together with the small amounts of water or alone - and thus preferably represents the main component of the post-treatment agent (N).
- Suitable solvents include, for example, the compounds from the group consisting of ethanol, isopropanol, 1,2-propylene glycol, 1,3-propylene glycol, 1,2-butylene glycol, dipropylene glycol, diethylene glycol monoethyl ether, glycerin, phenoxyethanol, benzyl alcohol, poly-C 1 -C 6 -alkylene glycols, dimethyl carbonate, diethyl carbonate, ethylene carbonate, propylene carbonate, butylene carbonate and glycerol carbonate.
- a method according to the invention is characterized in that the aftertreatment agent (N) contains at least one solvent (N-3) other than water, which is selected from the group consisting of ethanol, isopropanol, 1,2-propylene glycol, 1,3-propylene glycol, ethylene glycol, 1,2-butylene glycol, dipropylene glycol, diethylene glycol monoethyl ether, glycerin, phenoxyethanol, benzyl alcohol, poly-C1-C6-alkylene glycols, dimethyl carbonate, diethyl carbonate, ethylene carbonate, propylene carbonate, butylene carbonate and glycerol carbonate, preferably from the group consisting of ethanol and isopropanol, particularly preferably ethanol.
- solvent N-3 other than water
- a method according to the invention is characterized in that the aftertreatment agent (N) contains at least one solvent (F4) other than water, which is selected from the group consisting of ethanol and isopropanol.
- F4 solvent
- Ethanol has the CAS number 64-17-5.
- Isopropanol is also alternatively known as 2-propanol and has the CAS number 67-63-0.1
- 2-Propylene glycol is also alternatively known as 1,2-propanediol and has the CAS numbers 57-55-6 [(RS)-1,2-dihydroxypropane], 4254-14-2 [(R)-1,2-dihydroxypropane] and 4254-153 [(S)-1,2-dihydroxypropane].
- 1,3-Propylene glycol is also alternatively known as 1,3-dihydroxypropane or 1,3-propanediol and has the CAS number 504-63-2.
- Ethylene glycol is alternatively known as 1,2-ethanediol and has the CAS number 107-21-1.1
- 2-Butylene glycol can also be known as 1,2-butanediol and has the CAS numbers 584-03- 2 (racemate), 40348-66-1 ((R)-enantiomer) and 73522-17-5 ((S)-enantiomer).
- Dipropylene glycols (or oxydipropanols) form a group of substances derived from glycol ethers.
- the group of dipropylene glycols includes ⁇ -oxydi-1-propanol with the CAS number 108-61- 2, ⁇ -oxydi-2-propanol with the CAS number.
- Diethylene glycol monoethyl ether can alternatively be referred to as ethoxydiglycol or ethyldiglycol or 2-(2-ethoxyethoxy)ethanol) and has the CAS number 111-90-0.
- Glycerin is alternatively referred to as 1,2,3-propanetriol and has the CAS number 56-81-5.
- Phenoxyethanol has the CAS number 122-99-6.
- Benzyl alcohol can alternatively be referred to as phenylmethanol and has the CAS number 100-51-6.
- Suitable poly-C1-C6-alkylene glycols include in particular polyethylene glycols, as described, for example, by the formula (AG) (AG), where x is an integer from 1 to 1000, preferably 1 to 100, particularly preferably 2 to 50.
- the alkylene glycols of the formula (AG) are protic substances with at least one hydroxy group, which can also be referred to as polyethylene glycols due to their repeating unit -CH2-CH2-O-, provided x is at least 2.
- x is an integer from 1 to 10000.
- these polyethylene glycols have a are particularly suitable for improving the fastness properties of the dyes and for optimally adjusting the viscosity of the agents.
- Polyethylene glycols with a molecular weight between 200 g/mol and 400 g/mol are non-volatile liquids at room temperature.
- PEG 600 has a melting range of 17 to 22 °C and thus a paste-like consistency. With molecular weights above 3000 g/mol, PEGs are solid substances and are sold as flakes or powder.
- a particularly preferred low molecular weight polyethylene glycol is PEG-8.
- Dimethyl carbonate is also alternatively referred to as carbonic acid dimethyl ester and has the CAS number 616-38-6.
- Diethyl carbonate is also alternatively referred to as carbonic acid diethyl ester and has the CAS number 105-58-8.
- Ethylene carbonate is also known as 1,3-dioxolan-2-one.
- Ethylene carbonate corresponds to the compound of formula (I) in which R1 and R2 are hydrogen and n is 0.
- Ethylene carbonate has the CAS number 96-49-1.
- Propylene carbonate is alternatively referred to as 4-methyl-1,3-dioxolan-2-one.
- Propylene carbonate corresponds to the compound of formula (I) in which R1 is a methyl group, R2 is hydrogen and n is 0.
- Propylene carbonate has the CAS numbers 108-32-7 [(RS)-4-methyl-1,3-dioxolan-2-one], 51260-39-0 [(S)-4-methyl-1,3-dioxolan-2-one] and 16606-55-6 [(R)-4-methyl-1,3-dioxolan-2-one]. All of the aforementioned stereoisomers are encompassed by the invention.
- butylene carbonate is understood to mean 1,2-butylene carbonate, which is alternatively also referred to as 4-ethyl-1,3-dioxolan-2-one and which has the CAS number 4437-85-8.
- Butylene carbonate corresponds to the compound of formula (I) in which R1 is an ethyl group, R2 is a hydrogen atom and n is the number 0.
- Glycerol carbonate is alternatively also referred to as 4-hydroxymethyl-1,3-dioxolan-2-one and has the CAS number 931-40-8.
- Glycerol carbonate corresponds to the compound of formula (I) in which R1 is a hydroxymethyl group, R2 is a hydrogen atom and n is the number 0.
- the solvent(s) (N-3) represent the cosmetic carrier of the after-treatment agent (N) and are therefore preferably used as the main component in the after-treatment agent (N).
- the main component is an ingredient whose amount used exceeds that of all other ingredients.
- the post-treatment agent (N) can contain - based on the total weight of the post-treatment agent (N) - one or more solvents (N-3) other than water in a total amount of 1.0 to 90.0 wt. %, preferably 5.0 to 75 wt. %, more preferably 10.0 to 55 wt.
- a process according to the invention is characterized in that the aftertreatment agent (N) - based on the total weight of the aftertreatment agent (N) - contains one or more solvents (N-3) other than water in a total amount of 1.0 to 90.0 wt. %, preferably 5.0 to 75 wt. %, more preferably 10.0 to 55 wt. %, even more preferably 15.0 to 45 wt. %, and most preferably 15.0 to 25.0 wt. %.
- a process according to the invention is characterized in that the aftertreatment agent (N) - based on the total weight of the aftertreatment agent (N) - contains 1.0 to 90.0 wt. %, preferably from 5.0 to 75 wt. %, more preferably from 10.0 to 55 wt. %, even more preferably from 15.0 to 45 wt. %, and most preferably from 15.0 to 25.0 wt. % ethanol.
- the aftertreatment agent (N) can additionally contain at least one fatty component (N-4) that is liquid at 20 °C.
- the liquid fatty components (N-4) can also further reduce the polarity of the aftertreatment agent (N) and further increase the storage stability of the aftertreatment agent.
- fatty components are understood to mean organic compounds with a solubility in water at room temperature (22 °C) and atmospheric pressure (760 mmHg) of less than 1% by weight, preferably less than 0.1% by weight.
- a fat component that is liquid at 20 °C has a melting point below 20 °C (measured under atmospheric pressure (760 mmHg)).
- the definition of fat components explicitly only includes uncharged (i.e. non-ionic) compounds. Fat components have at least one saturated or unsaturated alkyl group with at least 8 carbon atoms.
- the molecular weight of the fat components is a maximum of 5000 g/mol, preferably a maximum of 2500 g/mol and particularly preferably a maximum of 1000 g/mol.
- the fat components are neither polyoxyalkylated nor polyglycerylated compounds.
- Particularly suitable fatty components include, for example, linear or cyclic silicone oils, hydrocarbon oils, liquid fatty acid triglycerides, liquid fatty alcohols and ester oils, provided that each compound from the aforementioned substance classes has a melting point below 20°C.
- non-ionic substances are explicitly considered as fatty components. Charged compounds such as fatty acids and their salts are not understood to be fatty components.
- a method according to the invention is characterized in that the aftertreatment agent (N) contains at least one fatty component (N-4) that is liquid at 20°C and is preferably selected from the group of linear or cyclic silicone oils, hydrocarbon oils, liquid fatty acid triglycerides, liquid fatty alcohols, ester oils and mixtures thereof.
- Silicone oils can also be referred to as oligoalkylsiloxanes and polyalkylsiloxanes that are liquid at 20 °C, i.e. the silicone oils have a melting point that is below 20 °C (at atmospheric pressure (760 mmHg).
- Preferred linear silicone oils are oligoalkylsiloxanes of the general formula (V) where z is an integer from 0 to 10000, preferably an integer from 0 to 1000, more preferably an integer from 0 to 100, and most preferably an integer from 0 to 10.
- Particularly preferred linear oligoalkylsiloxanes are, for example, - hexamethyldisiloxane .
- - Decamethyltetrasiloxane Hexamethyldisiloxane has the CAS number 107-46-0 and can be purchased commercially from Sigma-Aldrich, for example. Hexamethyldisiloxane is also sold commercially by Wacker under the trade name Belsil DM 0.65.
- Octamethyltrisiloxane has the CAS number 107-51-7 and is also available commercially from Sigma-Aldrich.
- Decamethyltetrasiloxane has the CAS number 141-62-8 and is also available commercially from Sigma-Aldrich.
- Another particularly suitable silicone oil can be purchased commercially from Clearco, for example under the trade name Dimethicone Fluid 5 cSt. This silicone oil has the generic name polydimethylsiloxane and has the CAS number 63148-62-9. The substance is a clear, colorless and odorless liquid, low-viscosity oil.
- Another silicone oil that is particularly suitable can be purchased from Dow Corning under the trade name Xiameter PMX 200 (1.5 cSt).
- This oil is also a dimethicone or polydimethylsiloxane, which has the CAS number 63148-62-9.
- Preferred cyclic oligoalkylsiloxanes are compounds of the general formula (VI) where y is an integer from 1 to 5. Preferably z is the number 1, 2 or 3.
- an aftertreatment agent (N) is characterized in that it contains as fat component (N-4) at least one silicone oil of the formula (V) and/or (VI), where z is an integer from 0 to 10000, preferably an integer from 0 to 1000, more preferably an integer from 0 to 100, and most preferably an integer from 0 to 10, where y is an integer from 1 to 5, preferably an integer from 1 to 3.
- a process according to the invention is characterized in that the aftertreatment agent (N) contains at least one fatty component (N-4) which is liquid at 20 °C and which is selected from the group of siloxanes of the formula (III) and/or the formula (IV) where z is an integer from 0 to 10, preferably an integer from 0 to 3, where y is an integer from 1 to 5, preferably an integer from 1 to 3.
- a process according to the invention is characterized in that the aftertreatment agent (N) contains at least one fatty component (N-4) which is liquid at 20 °C and is selected from the group consisting of hexamethyldisiloxane, Octamethyltrisiloxane, decamethyltetrasiloxane, hexamethylcyclotrisiloxane, octamethylcyclotetrasiloxane and/or decamethylcyclopentasiloxane, very particularly preferably hexamethyldisiloxane.
- N-4 fatty component which is liquid at 20 °C and is selected from the group consisting of hexamethyldisiloxane, Octamethyltrisiloxane, decamethyltetrasiloxane, hexamethylcyclotrisiloxane, octamethylcyclotetrasiloxane and/or decamethylcyclopentasiloxane, very particularly preferably hexamethyld
- the oligoalkylsiloxanes are made up exclusively of dialkylsilyl groups (in particular dimethylsilyl groups) and trialkylsilyl groups (in particular trimethylsilyl groups) which are linked to one another via oxygen atoms.
- the oligoalkylsiloxanes are therefore not themselves reactive compounds within the meaning of this invention and do not have any hydrolyzable groups.
- Other particularly suitable fatty components which are liquid at 20°C are the hydrocarbon oils.
- Hydrocarbons are compounds with 8 to 80 C atoms consisting exclusively of the atoms carbon and hydrogen.
- aliphatic hydrocarbons such as mineral oils, liquid paraffin oils (e.g. paraffinium liquidum or paraffinum perliquidum), isoparaffin oils and polydecenes are particularly preferred.
- the hydrocarbons according to the invention are also characterized in that they have a melting point under atmospheric pressure that is below 20 °C.
- Liquid fatty acid triglycerides are also particularly suitable fat components that are liquid at 20 °C.
- a C 12 -C 30 fatty acid triglyceride is understood to be the triester of the trihydric alcohol glycerol with three equivalents of fatty acid.
- fatty acids are understood to mean saturated or unsaturated, unbranched or branched, unsubstituted or substituted C12-C30 carboxylic acids.
- Unsaturated fatty acids can be monounsaturated or polyunsaturated. In the case of an unsaturated fatty acid, its CC double bond(s) can have the cis or trans configuration.
- the fatty acid triglycerides are particularly suitable in which at least one of the ester groups is formed from glycerol with a fatty acid selected from dodecanoic acid (lauric acid), tetradecanoic acid (myristic acid), hexadecanoic acid (palmitic acid), tetracosanoic acid (lignoceric acid), octadecanoic acid (stearic acid), eicosanoic acid (arachidic acid), docosanoic acid (behenic acid), petroselinic acid [(Z)-6-octadecenoic acid], palmitoleic acid [(9Z)-hexadec-9-enoic acid], oleic acid [(9Z)-octadec-9-enoic acid], elaidic acid [(9E)-octadec-9-enoic acid], erucic acid [(13Z)-docos-13-enoic acid
- a further particularly preferred embodiment is therefore an agent for coloring keratin fibers, which is characterized in that it contains, as the fat component (c) liquid at 20 °C, a naturally occurring fatty acid triglyceride and/or mixtures of naturally occurring fatty acid triglycerides which are contained in soybean oil, peanut oil, olive oil, sunflower oil, macadamia nut oil, moringa oil, apricot kernel oil, marula oil and/or optionally hydrogenated castor oil.
- Liquid fatty alcohols are also particularly suitable fat components that are liquid at 20 °C.
- Preferred linear, unsaturated fatty alcohols are (9Z)-octadec-9-en-1-ol (oleyl alcohol), (9E)-octadec-9-en-1-ol (elaidyl alcohol), (9Z,12Z)-octadeca-9,12-dien-1-ol (linoleyl alcohol), (9Z,12Z,15Z)-octadeca-9,12,15-trien-1-ol (linolenoyl alcohol), gadoleyl alcohol ((9Z)-eicos-9-en-1-ol), arachidonic alcohol ((5Z,8Z,11Z,14Z)-eicosa-5,8,11,14-tetraen-1-ol), erucyl alcohol ((13Z)-docos- 13-en-1-ol) and/or brassidyl alcohol ((13E)-docosen-1-ol).
- Ester oils are also particularly suitable fatty components that are liquid at 20 °C. Ester oils are understood to be esters of C12-C30 fatty acids with aliphatic C1-C24 alcohols that have a liquid state at room temperature (20 °C). In other words, ester oils according to the invention are characterized in that they have a melting point of below 20 °C at normal pressure (1013 mbar).
- a particularly strong improvement in the hair feel was achieved when a post-treatment agent was applied to the previously dyed hair, which contained at least one ester oil selected from the group of monoesters of C 12 -C 24 fatty acids with aliphatic, monohydric C 1 -C 24 alcohols.
- the method according to the invention is characterized in that the post-treatment agent contains at least one fatty component (N-4) from the Group of esters from a C 12 -C 30 fatty acid and an aliphatic, monohydric C 1 -C 24 alcohol. Within the group of C 12 -C 30 fatty acids, the C 12 -C 24 fatty acids are particularly suitable.
- C 12 -C 24 fatty acids that are suitable for the formation of ester oils (N-3) are caproic acid, caprylic acid, 2-ethylhexanoic acid, capric acid, lauric acid, isotridecanoic acid, myristic acid, palmitic acid, palmitoleic acid, stearic acid, isostearic acid, oleic acid, elaidic acid, petroselinic acid, linoleic acid, linolenic acid, elaeostearic acid, arachidic acid, gadoleic acid, behenic acid and erucic acid as well as their technical mixtures.
- fatty alcohol components in the ester oils are isopropyl alcohol, caproic alcohol, caprylic alcohol, 2-ethylhexyl alcohol, capric alcohol, lauryl alcohol, isotridecyl alcohol, myristyl alcohol, cetyl alcohol, palmoleyl alcohol, stearyl alcohol, isostearyl alcohol, oleyl alcohol, elaidyl alcohol, petroselinyl alcohol, linolyl alcohol, linolenyl alcohol, elaeostearyl alcohol, arachyl alcohol, gadoleyl alcohol, behenyl alcohol, erucyl alcohol and brassidyl alcohol as well as their technical mixtures.
- C12-C24 fatty acids are esterified by reaction with an aliphatic C1-C24 alcohol, which is particularly preferably a mono-alcohol, so that a mono-ester is formed during the esterification.
- the aliphatic C1-C24 alcohols can be linear or branched, saturated, or mono- or polyunsaturated.
- An alcohol selected from the group consisting of methanol, ethanol, n-propanol, isopropanol, n-butanol, n-pentanol, 2-ethylhexanol, n-hexanol, n-octanol, n-decanol and n-dodecanol can be used as an aliphatic saturated C1-C24 alcohol.
- Examples of monohydric, unsaturated C1-C24 alcohol are oleyl alcohol (octadec-9-en-1-ol), palmitoleyl alcohol (cis-9-hexadecen-1-ol), elaidyl alcohol (trans-9-octadecen-1-ol) and cis-11-octadecen-1-ol.
- the C12-C24 fatty acids and the C1-C12 alcohols are selected so that the ester formed by esterification of both reactants is an ester oil, ie it has a melting point below 20 °C at 1013 mbar.
- ester oils according to the invention can be used in the form of commercially available raw materials, which are mixtures of the esters obtained from fatty acids of different chain lengths and/or alcohols of different chain lengths. These raw materials can have a melting range. For these raw materials, a Melting point below 20 °C means that the melting process begins at a temperature below 20 °C. For example, if an ester oil in the form of a certain raw material can be used on average, whereby this raw material has a melting range of 16 to 27 °C, then this raw material contains at least one ester oil with a melting point below 20 °C. This ester oil is therefore in accordance with the invention.
- 2-ethylhexyl palmitate (Cegesoft ® 24), isopropyl myristate (Rilanit ® IPM), isononanoic acid C16-18 alkyl esters (Cetiol ® SN), stearic acid 2-ethylhexyl ester (Cetiol ® 868), cetyl oleate, glycerol tricaprylate, coconut fatty alcohol caprinate/caprylate (Cetiol ® LC), n-butyl stearate, oleyl erucate (Cetiol ® J 600), isopropyl palmitate (Rilanit ® IPP), oleyl oleate (Cetiol ® ), lauric acid hexyl ester (Cetiol ® A), di-n-butyl adipate (Cetiol ® B), cetyl oleate,
- the ester oil (N-3) is particularly preferably selected from the group of isopropyl myristate, 2-ethylhexyl palmitate, isononanoic acid C16-18 alkyl ester, 2-ethylhexyl stearic acid ester, cetyl oleate, coconut fatty alcohol caprinate, coconut fatty alcohol caprylate, n-butyl stearate, oleyl erucate, isopropyl palmitate, oleyl oleate, hexyl laurate, cetearyl isononanoate and decyl oleate.
- Isopropyl myristate is also alternatively referred to as isopropyl myristic acid ester and has the CAS number 110-27-0.
- Isopropyl myristate is a colorless and odorless liquid. The melting point is 0 - 1 °C.
- 2-Ethylhexyl palmitate is also known as hexadecanoic acid 2-ethylhexyl ester and has the CAS number 29806-73-3 .
- 2-Ethylhexyl palmitate is a branched, saturated ester oil made from palmitic acid and ethylhexyl alcohols.
- Isononanoic acid C16-18-alkyl ester is also known as cetearyl isononanoate; this ester has the CAS numbers 84878-33-1 and 84878-34-2. Isononanoic acid C16-18-alkyl ester is a clear, slightly yellowish liquid. At 20 °C, isononanoic acid C16-18-alkyl ester has a viscosity of 19 - 22 mPas.
- Stearic acid 2-ethylhexyl ester is also known as ethylhexyl stearate and has the CAS number 91031-48-0.
- Stearic acid 2-ethylhexyl ester is in the form of a clear, slightly yellowish, thin oil.
- stearic acid 2-ethylhexyl ester has a viscosity of 14 - 16 mPas and is therefore an oil at room temperature.
- Cetyl oleate has the CAS number 22393-86-8.
- coconut fatty alcohol caprylate/caprate has the CAS number 95912-86-0.
- n-Butyl stearate is also known as stearic acid butyl ester and has the CAS numbers 85408-76-0 (C16-18) and 123-95-5 (C18).
- n-Butyl stearate is a yellowish liquid and begins to melt at 16 °C.
- Oley lerucate has the CAS number 17673-56-2.
- Oley lerucate is a yellow liquid.
- oleyl erucate has a viscosity of 40 - 50 mPas and is therefore an oil at room temperature.
- Isopropyl palmitate is also known as propan-2-yl hexadecanoate and has the CAS number 142-91-6. The melting point of isopropyl palmitate is 13.5 °C.
- Oleyl oleate is also known as cis-9,10-octadecenyl-cis-9,10-octadecanoate or oleic acid oleyl ester and has the CAS number 3687-45-4.
- Oleyl oleate is a clear, slightly yellowish oil that has a viscosity of 25 - 30 mPas at 20 °C and is an oil at room temperature.
- Lauric acid hexyl ester is also known as hexyl laurate and has the CAS number 34316-64-8. Lauric acid hexyl ester is a clear, yellowish, odorless oil at room temperature. At 20 °C, lauric acid hexyl ester has a viscosity of 5 - 7 mPas and is therefore an oil at room temperature. Cetearyl isononanoate is also alternatively known as isononanoic acid C16-18 alkyl ester and has the CAS numbers 84878-33-1 and 84878-34-2. Cetearyl isononanoate is a yellowish liquid with a melting point of 16 - 22 °C.
- Oleic acid decyl ester is also alternatively known as decyl oleate and has the CAS number 3687- 46-5. Oleic acid decyl ester is a slightly yellowish liquid that has a viscosity of 15 - 20 mPas at 20 °C. Oleic acid decyl ester is therefore an oil at room temperature.
- the fatty component(s) (N-4) which are liquid at 20 °C are used in certain quantity ranges in the after-treatment agent (N) according to the invention.
- the colorant (F) – based on the total weight of the colorant (F) – contains one or more fatty components (c) which are liquid at 20 °C in a total quantity from 1.0 to 99% by weight, preferably from 1.0 to 95.0% by weight, preferably from 10.0 to 90% by weight, more preferably from 30.0 to 85% by weight, even more preferably from 40.0 to 80% by weight and most preferably from 50.0 to 75% by weight.
- a process according to the invention is characterized in that the aftertreatment agent (N) - based on the total weight of the aftertreatment agent (N) - contains one or more fat components (N-4) which are liquid at 20 °C in a total amount of from 1.0 to 95.0% by weight, preferably from 10.0 to 90% by weight, more preferably from 30.0 to 85% by weight, even more preferably from 40.0 to 80% by weight and most preferably from 50.0 to 75% by weight.
- the aftertreatment agent (N) - based on the total weight of the aftertreatment agent (N) - contains one or more fat components (N-4) which are liquid at 20 °C in a total amount of from 1.0 to 95.0% by weight, preferably from 10.0 to 90% by weight, more preferably from 30.0 to 85% by weight, even more preferably from 40.0 to 80% by weight and most preferably from 50.0 to 75% by weight.
- the post-treatment agent (N) is intended to improve the wash fastness of the direct dyes previously applied in the dyeing step, but is not itself a dye and therefore preferably does not contain any coloring compounds.
- the post-treatment agent (N) therefore contains no oxidation dye precursors, no direct dyes and no pigments.
- a method according to the invention is characterized in that the aftertreatment agent (N) does not contain any coloring compounds from the group of oxidation dye precursors, direct dyes and pigments.
- Pigments in the sense of the present invention 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 0.05 g/L.
- the water solubility can be determined, for example, using the method described below: 0.5 g of the pigment are weighed in a beaker. A stir bar is added.
- step (5) of the method according to the invention the after-treatment agent (N) is allowed to act on the keratin fibers.
- Typical exposure times can be, for example, a period of 1 to 60 minutes, preferably 2 to 45 minutes and particularly preferably 5 to 30 minutes.
- the after-treatment agent (N) While the after-treatment agent (N) is acting, it has proven particularly advantageous to treat the keratin fibers still covered with the after-treatment agent with a water-containing agent. In this way, a defined amount of water is again brought into contact with the after-treatment agent.
- the defined amount of water is preferably applied to the keratin fibers that are still coated with the after-treatment agent (N).
- the amount of water applied in step (5) is at most twice the weight of the post-treatment agent (N) used in step (3).
- a post-condensation or post-crosslinking of the organic C 1 -C 6 alkoxysilanes can be initiated.
- This post-crosslinking ensures further solidification of the film or coating.
- a method is preferred which comprises (5) allowing the post-treatment agent (N) to act on the keratin fibers, wherein during the action a water-containing agent (W) is applied to the keratin fibers still covered with the post-treatment agent (N) and mixed with the post-treatment agent (N).
- the application of the water-containing agent (W) in step (5) should not yet result in the after-treatment agent (N) being washed out, i.e.
- the additional amount of water applied to the hair to which the after-treatment agent (N) has been applied should be so large that the C 1 -C 6 alkoxysilanes can come into contact with a sufficient amount of water, but the after-treatment agent (N) is not washed off the hair fibers or flows down from them.
- this is the case if the weight of the water-containing agent (W) applied in step (5) is at most twice the weight of the after-treatment agent (N) applied in step (4).
- a method which comprises (5) acting on the keratin fibers with the after-treatment agent (N), wherein during the action a water-containing agent (W) is applied to the keratin fibers still covered with the after-treatment agent (N) in an amount which is at most is twice as large as the amount of after-treatment agent (N) applied to the keratin fibers.
- a method according to the invention is therefore characterized in that the amount by weight of water-containing agent (W) that comes into contact with the after-treatment agent (N) still on the keratin fibers as a result of the application of the water-containing agent (W) is at most twice as large as the weight of the after-treatment agent (N) applied in step (4).
- a method according to the invention is characterized in that the amount by weight of water-containing agent (W) that comes into contact with the after-treatment agent (N) still on the keratin fibers as a result of the application of the water-containing agent (W) is at most as large as the weight of the after-treatment agent (N) applied in step (4).
- the amount of water-containing agent (W) and the amount of after-treatment agent (N) are understood here to mean the amounts by weight. If 50 g of after-treatment agent (N) are applied to the keratin fibers or hair in step (4), preferably no more than 100 g of water-containing agent (W) are applied to the hair/keratin fibers in step (5). Particularly preferably, no more than 50 g of the water-containing agent (W) are applied.
- the water-containing agent (W) itself preferably contains water as the main ingredient, but can also contain other ingredients such as preservatives and/or in particular thickeners.
- the water-containing agent (W) preferably contains - based on the total weight of the water-containing agent (W) - 50 to 100% by weight, preferably 60 to 99.9% by weight, more preferably 60 to 99.9% by weight and very particularly preferably 70 to 99.9% by weight of water.
- pure water can also be applied to the hair still covered with the after-treatment agent and mixed with the after-treatment agent.
- the water-based agent (W) consists of water or contains 100% of water by weight.
- pure water is very thin and relatively difficult for the user to apply, it has proven preferable to at least thicken the water with a thickener.
- Other care or styling ingredients can also optionally be included in the water-based agent (W).
- the defined amount of water can be distributed on the keratin fibers in step (5) and mixes with the post-treatment agent that is also still on the keratin fibers. (N). This mixing can be supported by massaging in by hand or with a brush. After applying the water-based agent (W) and mixing it with the after-treatment agent (N), the mixture of (N) and (W) can be left to act on the keratin fibers for some time. Possible exposure times here are 1 to 45 minutes, preferably 2 to 30 minutes, particularly preferably 5 to 15 minutes. During this exposure time, the keratin fibers or hair can also be kneaded or massaged several times to really ensure a closed film formation around each keratin fiber.
- the after-treatment agent (6) can be rinsed out in one embodiment. In a further embodiment, however, it is also possible not to rinse out the post-treatment agent (N), but to dry the keratin fibers still coated with the post-treatment agent (N) - possibly diluted by adding water - without washing them out. Without washing out the post-treatment agent (N), the film formed on the keratin fibers can continue to condense or harden for some time. Since particularly resistant films can be obtained in this way, this embodiment is very particularly preferred.
- a method according to the invention is therefore characterized by (6) drying the keratin fibers without first washing out the post-treatment agent (N).
- the water (N-2) and the solvent(s) (N-3) present in the post-treatment agent evaporate or vaporize, and the film formed by the condensation of the C1-C6 alkoxysilanes hardens. Drying can be done either in the air or with heat, for example with the help of a heat cap or a hair dryer.
- step (6) can begin immediately after step (4) if the after-treatment agent begins to dry after application during the exposure time.
- the drying of the keratin fibers or the hair that takes place in step (6) can be accelerated by heat treatment.
- Heat treatment means that the keratin fibers are brought into contact with a heated device or this heated device is placed on or to which keratin fibers are applied.
- the keratin fibers can also be brought into contact with warm/hot air for the heat treatment.
- the device used can be, for example, a hair dryer, a blow dryer, a heat cap, a straightening iron, a curling iron or an infrared lamp.
- a method according to the invention is characterized in that the heat treatment is carried out by using a hair dryer, a blow dryer, a heat cap, a straightening iron, a curling iron or an infrared lamp.
- the treatment temperature during the heat treatment is between 40 °C and 210 °C, preferably from 50 °C to 190 °C, more preferably from 50 °C to 170 °C, even more preferably from 50 °C to 150 °C and most preferably from 50 °C to 100 °C.
- the heat treatment is carried out with a device which is heated to a temperature of 40 °C to 210 °C, preferably from 50 °C to 190 °C, more preferably from 50 °C to 170 °C, even more preferably from 50 °C to 150 °C and very particularly preferably from 50 °C to 100 °C.
- a method according to the invention is characterized by (4) drying the keratin fibers without prior washing out of the after-treatment agent (N) at a temperature of 40 °C to 210 °C, preferably from 45 °C to 190 °C, more preferably from 45 °C to 170 °C, even more preferably from 45 °C to 150 °C and very particularly preferably from 45 °C to 100 °C.
- the keratin fibers or the hair can be treated with a hair dryer that blows warm or hot air onto the keratin fibers. This air is particularly preferably 50 to 100 °C.
- the keratin fibers or the hair are held under an infrared lamp, which is particularly preferably set to a temperature of 50 to 100 °C.
- hair can also be pressed between two appropriately tempered plates of a straightening iron, whereby the plates can be moved along the fiber at the same time.
- the plates of the straightening iron can, for example, be set to a temperature of up to 210 °C.
- the heat treatment can expediently be carried out until the keratin fibers still coated with the after-treatment agent (F) have dried or are completely dry.
- the user can freely choose the period of time between the application of the two agents (F) and (N).
- the maximum period of time between the application of the two agents (F) and (N) is very particularly preferably limited to a time interval of a maximum of 24 hours. It has proven to be very particularly preferred if there is a period of a maximum of 24 hours, preferably a maximum of 12 hours, more preferably a maximum of 6 hours and very particularly preferably a maximum of 3 hours between the application of the coloring agent (F) and the application of the after-treatment agent (N) to the keratin fibers.
- a method according to the invention is characterized in that there is a period of maximum 24 hours, preferably maximum 12 hours, more preferably maximum 6 hours and most preferably maximum 3 hours between the application of the colorant (F) and the after-treatment agent (N).
- Colorants The following colorants were prepared (all data in % by weight unless otherwise stated) F1 (% by weight) F2 (% by weight) Cetearyl alcohol 5.0 5.0 Isopropyl myristate 2.0 2.0 Behentrimonium chloride 1.9 1.9 Distearoylethyl Hydroxyethylmonium methosulfate 1.1 1.1 Phenoxyethanol 1.1 1.1 Stearamidopropyl dimethylamine 1.0 1.0 Cetyl palmitate 0.7 0.7 Citric acid 0.2 0.2 Polyquaternium-37 0.15 0.15 Magnesium citrate 0.2 0.2 HB Blue 16 (3-[[9,10-Dihydro-4-(methylamino)-9,10- --- 0.3 dioxo-1-anthracenyl] amino]-N,N-dimethyl-N-propyl-, 1-propanaminium, bromide, CAS No.
- the strands of hair were moistened, then the colorant was applied (0.4 g colorant per 1 g strand of hair) and left to take effect for 15 minutes at 30 °C.
- the hair strands were then rinsed under running water for 1 minute.
- the respective after-treatment product was applied to the still damp hair strands (0.4 g after-treatment product per 1 g hair strand) and massaged in.
- the after-treatment product was left to work for 5 minutes, then water (0.4 g water per g hair strand) was applied to the hair strand again. Each hair strand was carefully massaged again. After a contact time of 5 minutes, each strand was dried at 50 °C without washing out the after-treatment product. 4.
- the strands were stored overnight and then visually assessed under the daylight lamp. 0 HW is the color result that was obtained directly after coloring and drying.
- the strands were then washed 6 or 12 times (6 HW, 12 HW).
- a commercially available shampoo (0.25 g shampoo (Schauma 7 herbs) per 1 g hair) was applied to the strand and massaged in with the fingers for 30 seconds.
- the shampoo was then rinsed out under running, lukewarm water for 1 minute and the hair strand was dried.
- the process described above corresponds to one hair wash.
- the process was repeated for each subsequent hair wash. After the corresponding number of hair washes, the strands were again visually assessed under the daylight lamp.
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Abstract
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Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP24710069.6A EP4724030A1 (de) | 2023-06-12 | 2024-03-06 | <sup2/>? <sub2/>?1?verfahren zum färben von keratinischen fasern, umfassend die färbung mit direktziehenden farbstoffen und die nachbehandlung mit c-c <ns1:sub>6</ns1:sub>?-alkoxy-silanen in einem lösungsmittelsystem |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102023205422.1A DE102023205422A1 (de) | 2023-06-12 | 2023-06-12 | Verfahren zum Färben von keratinischen Fasern, umfassend die Färbung mit direktziehenden Farbstoffen und die Nachbehandlung mit C1-C6-Alkoxy-Silanen in einem Lösungsmittelsystem |
| DE102023205422.1 | 2023-06-12 |
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| Publication Number | Publication Date |
|---|---|
| WO2024256043A1 true WO2024256043A1 (de) | 2024-12-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2024/055879 Ceased WO2024256043A1 (de) | 2023-06-12 | 2024-03-06 | Verfahren zum färben von keratinischen fasern, umfassend die färbung mit direktziehenden farbstoffen und die nachbehandlung mit c1-c6-alkoxy-silanen in einem lösungsmittelsystem |
Country Status (3)
| Country | Link |
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| EP (1) | EP4724030A1 (de) |
| DE (1) | DE102023205422A1 (de) |
| WO (1) | WO2024256043A1 (de) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1761449A (zh) * | 2003-03-19 | 2006-04-19 | 株式会社钟纺化妆品 | 化妆品 |
| EP2168633A2 (de) * | 2008-09-30 | 2010-03-31 | L'oreal | Verwendung einer kosmetischen Zusammensetzung enthaltend organische Silicium-Derivate mit einer basischen Gruppe als Vorprodukt vor einer Zusammensetzung enthaltend ein filmbildneres hydrophobisches Polymer, ein Pigment und ein Lösungsmittel |
| WO2019046389A1 (en) * | 2017-08-30 | 2019-03-07 | L'oreal | METHODS FOR ENHANCING THE SUSTAINABILITY OF COLOR OF ARTIFICIALLY COLORED HAIR |
| FR3081102A1 (fr) | 2018-05-15 | 2019-11-22 | L'oreal | Procede de coloration des cheveux mettant en oeuvre des colorants directs anioniques et au moins deux organosilanes differents |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10233963A1 (de) | 2002-07-25 | 2004-02-12 | Itn-Nanovation Gmbh | Verwendung von Silanen in kosmetischen Mitteln und Verfahren zur Haarbehandlung |
| DE102021201097A1 (de) | 2021-02-05 | 2022-08-11 | Henkel Ag & Co. Kgaa | Mittel zum Färben von keratinischem Material, enthaltend mindestens zwei voneinander verschiedene organische Siliciumverbindungen, mindestens ein Pigment und mindestens einen flüssigen Fettbestandteil und/oder ein Lösungsmittel |
| DE102021209370A1 (de) | 2021-08-26 | 2023-03-02 | Henkel Ag & Co. Kgaa | Verfahren zum Färben von keratinischem Material, insbesondere menschlichen Haaren |
-
2023
- 2023-06-12 DE DE102023205422.1A patent/DE102023205422A1/de active Pending
-
2024
- 2024-03-06 EP EP24710069.6A patent/EP4724030A1/de active Pending
- 2024-03-06 WO PCT/EP2024/055879 patent/WO2024256043A1/de not_active Ceased
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1761449A (zh) * | 2003-03-19 | 2006-04-19 | 株式会社钟纺化妆品 | 化妆品 |
| EP2168633A2 (de) * | 2008-09-30 | 2010-03-31 | L'oreal | Verwendung einer kosmetischen Zusammensetzung enthaltend organische Silicium-Derivate mit einer basischen Gruppe als Vorprodukt vor einer Zusammensetzung enthaltend ein filmbildneres hydrophobisches Polymer, ein Pigment und ein Lösungsmittel |
| WO2019046389A1 (en) * | 2017-08-30 | 2019-03-07 | L'oreal | METHODS FOR ENHANCING THE SUSTAINABILITY OF COLOR OF ARTIFICIALLY COLORED HAIR |
| FR3081102A1 (fr) | 2018-05-15 | 2019-11-22 | L'oreal | Procede de coloration des cheveux mettant en oeuvre des colorants directs anioniques et au moins deux organosilanes differents |
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| Publication number | Publication date |
|---|---|
| DE102023205422A1 (de) | 2024-12-12 |
| EP4724030A1 (de) | 2026-04-15 |
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