DE19955842A1 - Leave-on aqueous agent, used to improve volume and gloss of hair, comprises a hair-conditioner and a polyamide powder of specified particle size - Google Patents

Abstract

Treatment of human hair using a 'leave-on' aqueous agent comprising a hair-conditioner and a polyamide powder. At at least 80% of the powder has a diameter in the range 1-20 mu .

Description

The present invention relates to a method for treating human Hair that has improved properties, especially wet and Dry combability, increased shine, a full and at the same time loose grip as well as good imprisonment.

Means for conditioning human hair have long been known. They usually contain quaternary ammonium compounds that have at least one have long-chain alkyl or alkenyl group, and optionally also Polymers.

Such agents are usually used as aqueous dispersions or emulsions, Microemulsions, gels or also in aerosol form and as Hair rinses, cures etc. used.

An overview of the well-known hair treatment agents and their Composition can be found in the monograph by K. Schrader, Fundamentals and Recipes of cosmetics, 2nd edition (1989), pp. 722 to 781, in particular pp. 728 to 737.

However, these known compositions can still be improved.

It has now been found that by the application of a hair treatment properties improved by means of the hair, in particular a significantly increased one Volume effect, easier wet and dry combability and a more subtle Shine, a full loose grip and good grip is given when this agent is on aqueous base at least one powdered polyamide with a particle diameter knife of at least 80% in the range of 1 to 20 microns, and at least one contains hair conditioning active ingredient.

This agent is, preferably after shampooing, optionally in Connection to a previously performed hair coloring or permanent waving, on the Hair applied, preferably massaged into this and not after exposure away.

It is therefore exclusively a question of "leave on" products, in Contrary to so-called "rinse off" products, which after a short Exposure time to be rinsed out of the hair.

Suitable powdered polyamides, which in the invention for Hair treatment agents used, preferably in an amount of about 0.25 up to about 15, in particular about 0.5 to about 10 wt .-%, based on the Total composition of the agent used are known per se for example as "Polyamide 6" or "12" under the name "Nylon". 80% of the particles have a particle diameter in the range from 1 to 20, preferably about 2.5 to 17, especially about 5 to 15 microns.

Other commercial products are "Orgasol®1002", "2002" and "4000".

Suitable hair conditioning active ingredients, the amount of which in the invention agents typically used at about 0.25 to about 15, especially 0.5 to about 10, preferably about 0.75 to 7.5 wt .-%, based on the total amount of the agent are, in particular, cationic surfactants, especially quaternary ones Ammonium compounds.

Suitable long chain quaternary ammonium compounds, alone or in Mixtures that can be used together are, for example Cetyltrimethylammonium chloride, dimethyldicetylammonium chloride, Trimethylcetylammonium bromide, dimethyldistearylammonium chloride, Stearyltrimethylammonium chloride, dimethylstearylbenzylammonium chloride, Benzyltetradecylodimethylammonium chloride, dimethyl dihydrogenated Tallow ammonium chloride, lauryl pyridinium chloride, lauryldimethylbenzyl ammonium chloride, behenyltrimethylammonium chloride, lauryltrimethyl ammonium chloride, tris (oligooxyethyl) alkylammonium phosphate, cetyl pyridinium chloride, etc.

The quaternaries disclosed in EP-A 472 107 are also very suitable Ammonium salts.

In principle, all quaternary ammonium compounds are as in the currently valid "CTFA International Cosmetic Ingredient Dictionary" under the trivial name "Quaternium" are listed, can be used.

Long-chain amines, e.g. B. Stearamidopropyldimethylamine.

The proportion of these compounds mentioned above is preferably about 0.5 to 10, in particular about 1 to 7.5% by weight, calculated on the total settlement.

Particularly suitable long-chain quaternary ammonium compounds are ester quats of the general formula (I)

in which R ¹ and R ² for an optionally hydroxy-substituted C ₈ -C ₂₂ alkyl or alkenyl group, R ³ and R ⁴ for a C ₁ -C ₃ alkyl group or a group -CH ₂ - CH ₂ -O- [EO ] _z -H and x, y and z represent 0 to 5 and Y ^- an anion.

A particularly preferred ester quat in the context of the invention is one in which the radicals R ¹ and R ² each have an oleyl group or a C ₁₂ -C ₁₈ alkyl group, the radical R ^{3 is} a methyl group and the radical R ^{4 is} a group -CH ₂ -CH ₂ -O- [EO] _z -H mean.

The anion Y ^- is preferably a halide such as Cl ^- or Br ^- , a lower alkyl sulfate, e.g. B. methosulfate and ethosulfate, or an alkyl phosphate, but of course other radicals can also be used.

These compounds are known per se and are commercially available, for example, under the trade names "Schercoquat ^A ", "Dehyquart®F30" and "Tetranyl®".

The use of these compounds in hair care products is also already known and for example in WO-A 93/10748, WO-A 92/06899 and WO-A 94/16677, where, however, there is no evidence of the invention Find the combination and its advantageous properties.

"Amidoquats" of the general formula are also suitable

in which R ¹ and R ² each represent an optionally hydroxy-substituted C ₈ -C ₂₂ alkyl or alkenyl group, R ³ and R ^{4 represent} a C ₁ -C ₃ alkyl group or a group -CH ₂ - CH ₂ -O- [ EO] _x -H, and x for 0 to 5, Y ^- stand for an anion.

Preferred radicals R ¹ and R ² are C ₁₂ -C ₁₈ alkyl and oleyl radicals, the radical R ^{3 is} a methyl group and the radical R ^{4 is} a group -CH ₂ -CH ₂ -O [EO] _x -H, where x is 0 to 3; Y is preferably a methosulfate, ethyl sulfate, chloride or phosphate anion.

These compounds are known per se and, for example, among Trade names "INCROQUAT® HO" or "OCS".

Other suitable hair conditioning agents are synthetic or natural hair conditioning polymers, preferably in an amount of 0.1 to 10, in particular 0.25 to 5% by weight of the total composition.

Particularly preferred are those under the CTFA name "Polyquaternium" known cationic (co) polymers, but nonionic, anionic and / or amphoteric polymers, for example those of the type "Amphomer®", used alone or in a mixture.

Other hair conditioning agents are lipophilic, i.e. H. greasy and oily Substances, which also include waxes, especially natural oils such as Avocado oil, coconut oil, palm oil, sesame oil, peanut oil, sperm oil, sunflower oil, Almond oil, peach seed oil, wheat germ oil, macadamia nut oil, evening primrose oil, jojoba oil, Castor oil, or olive or soybean oil, lanolin and its derivatives, as well Mineral oils such as paraffin oil and petroleum jelly.

Synthetic oils and waxes are, for example, silicone oils, polyethylene glycols, etc. Other suitable hydrophobic components are, in particular, fatty alcohols, preferably those with about 8 to 22 carbon atoms in the molecule, such as myristyl, Cetyl, stearyl alcohol, wax alcohols and fatty acid esters such as isopropyl myristate, palmitate, stearate and isostearate, oleyl oleate, isocetyl stearate, hexyl laurate, Dibutyl adipate, dioctyl adipate, myristyl myristate, olerlerucate, polyethylene glycol and Polyglyceryl fatty acid esters such as PEG-7 glyceryl cocoate, cetyl palmitate, etc.

These hydrophobic components are in the used according to the invention Compositions preferably in a total amount of from about 0.5 to about 15, in particular about 1 to 10, especially about 1.5 to 7.5% by weight, calculated on the total composition.

Other suitable hair conditioning additives are ceramides of the general formula

wherein R ¹ and R ^{2 are} identical or different alkyl or alkenyl radicals having 10 to 22 carbon atoms, R ^{3 is} hydrogen or a methyl, ethyl, n-propyl or isopropyl group, R ^{4 is} hydrogen, a hydroxymethyl or hydroxyethyl -, Dihydroxyethyl- or Dihydroxypropylgruppe, and n are an integer from 1 to 6, in particular of the type as is known from EP 227 994 A1 and WO-A 96/37462, but are also other ceramides, for example from WO-A 97/15724 or EP 647 617 B1 known ceramides.

The preferred groups R ¹ and R ² are C ₁₂ -C ₁₆ alkyl radicals; n is a number from 1 to 3, R ³ is preferably hydrogen or a methyl radical, and R ^{4 is} hydrogen or a dihydroxypropyl radical.

Particularly preferred are compounds in which R ^{1 is} a C ₁₂ -C ₂₄ alkyl group, in particular a C ₁₃ H ₂₇ alkyl group, R ^{2 is} a C ₁₄ C ₁₈ alkyl group, in particular a C ₁₆ H ₃₃ alkyl group, R ^{3 is} a methyl group , R ⁴ a

and n represents 3, or a compound where R ^{1 is} a C ₁₅ -C ₃₁ alkyl radical, R ^{2 is} a C ₁₆ H ₃₃ alkyl radical, R ³ and R ^{4 are} each a hydrogen atom and n is 2.

Their amount is in the hair treatment compositions used according to the invention expediently at about 0.01 to 10, preferably about 0.05 to 7.5, in particular about 0.1 to 5% by weight, calculated on the total composition.

Other suitable hair conditioning agents are water-insoluble vitamins and their derivatives, for example vitamin E and its esters such as Tocopherol acetate, propionate, palmitate, etc.  

Other additives, the type and amount of which of course depends on the form of application Dependent are fats, fatty alcohols, emulsifiers, pH regulators, Solvents and thinners, solubilizers, preservatives, perfumes, Etc.

Nonionic surfactants are particularly suitable as surfactants.

Particularly preferred nonionic surfactants are the known C ₈ -C ₁₈ alkyl polyglucosides, in particular with a degree of polycondensation of 1.2 to 3, especially those of the general formula

RO- (R ¹ O) _n -Z _x ,

wherein R is an alkyl group with 8 to 18 carbon atoms, R ^{1 is} an ethylene or propylene group, Z is a saccharide residue with 5 to 6 carbon atoms, n is a number from 0 to 10 and x is a number from 1 to 2.5, in an amount of 1 to 10, in particular 2.5 to 7.5 wt .-% of the total composition.

Other suitable nonionic surfactants are, for example, the various Sorbitan esters such as polyethylene glycol sorbitan stearic acid esters, fatty acid polyglycol esters or mixed condensates of ethylene oxide and propylene oxide, as they for example, are marketed under the trade name "Pluronics". In addition, there are of course also anionic and / or amphoteric or zwitterionic Suitable for surfactants.

The hair conditioning agents used according to the invention are preferred wise as an aqueous or aqueous / alcoholic solution, aqueous emulsion, Microemulsion, dispersion or opaque or transparent gel before and can also are made up as aerosols. Such compositions and their Production is fundamentally known to the person skilled in the art and therefore does not require any detailed explanation.  

The pH of the hair treatment agents used according to the invention is not critical; it can preferably be from 3 to about 8, in particular between 4 and 6.5, lie.

The viscosity is also in the generally customary range and is self-evident depending on the dosage form of the agent.

The following examples describe the invention in detail.  

example 1

A "leave-on cure" of the following composition was produced:

Cetylstearyl alcohol 2.5 (% by weight) Isopropyl myristate 0.2 Stearamidopropyldimethylamine 0.6 Lactic acid 0.3 Perfume 0.1 Preservative 0.3 Nylon-12 (average particle diameter: 90% between 3.5 and 12.5 µm) 1.0 water ad 100.0 PH value: ~ 4.5 Viscosity at 20 ° C: (Brookfield, spindle No. 4) ~ 15,000 mPa.s

The following blind test was carried out on lightly damaged strands of hair:
A composition 1 according to the above example was massaged into 5 strands after shampooing with a commercially available shampoo into the still wet hair.

Another 5 strands were made with one identical to composition 1 Composition 1A, but containing no polyamide particles, in the same way treated.

The locks of hair were checked before and after drying by 2 hairdressers each assessed using the preference method.

This result shows the surprising superiority of the invention Procedure.  

Example 2

1,2-propylene glycol 2.00 (% by weight) Carbopol®ETD 2020 (Acrylates / C ₁₀ -C ₂₀ alkyl acrylate crosspolymer) 0.50 Ethanol 17.50 PPG 9 0.70 PEG-60 Hydrogenated castor oil 0.50 NaOH (32%) 0.25 Perfume 0.10 almond oil 2.00 Polyamide powder (Orgasol®2002, average particle diameter 5 to 15 µm) 1.20 water ad 100.0 PH value: ~ 6.0 Viscosity at 20 ° C (Brookfield, spindle No. 4) ~ 30,000 mPa.s

With this product, a similar improvement in hair properties was achieved achieved with that according to Example 1.  

Example 3

Distearyldimethylammonium chloride 1.2 (% by weight) Cetylstearyl alcohol 2.5 Lactic acid 0.3 Nylon-12 (average particle diameter: 90% 3.5 to 12.5 µm) 1.5 Perfume 0.1 Preservative 0.3 water ad 100.0 PH value: ~ 4.5 Viscosity at 20 ° C (Brookfield, spindle No. 4) ~ 15,000 mPa.s

The application of this product gave similar good properties as that according to example 1.  

Example 4

A styling gel with the following composition:

Tocopheryl acetate 0.5 (% by weight) Polyamide powder (average particle size: 85% between 4 and 12 µm) 0.5 Carbopol® ETD 2001 (Carbomer) 0.5 Ethanol 11.0 Vinyl pyrrolidone / vinyl acetate copolymer (Luviskol® VA 55I) 5.5 Aminomethyl propanol 0.4 PEG-60 Hydrogenated castor oil 0.4 Perfume 0.3 Preservative 0.3 water ad 100.0 PH value: ~ 6.8 Viscosity at 20 ° C (Brookfield, spindle No. 4) ~ 40,000 mPa.s

gave excellent after rubbing in freshly washed hair hair conditioning effectiveness.

Claims (5)

1. A method for treating human hair, characterized in that an aqueous-based composition containing at least one powdered polyamide with a particle diameter of at least 80% in the range from 1 to 20 microns and at least one hair-conditioning agent is applied to it and not is rinsed out. 2. The method according to claim 1, characterized in that the composition contains from about 0.25 to about 15% by weight of the powdered polyamide. 3. The method according to claim 1 or 2, characterized in that the Composition as a hair conditioning agent at least about 0.25 to Contains 15 wt .-% of a cationic surfactant. 4. The method according to one or more of claims 1 to 3, characterized records that the composition as a hair conditioning agent about Contains 0.25 to 15 wt .-% of a lipophilic substance. 5. Use of an aqueous composition containing a powder Polyamide with a particle diameter of at least 80% in the range of 1 up to 15 microns, and at least one hair conditioning agent Improve the properties of human hair.