DE29512302U1 - Means for tinting human hair - Google Patents

Description

A-12/951/

Products for tinting human hair

The present invention relates to an agent for dyeing or tinting human hair with improved color intensity, which at the same time has increased stability.

It is generally known that hair dyes are divided into two categories: on the one hand, permanent hair dyes, which basically contain hair dye precursors, which, together with oxidizing agents, develop the desired color on the hair depending on their composition; and on the other hand, semi-permanent hair dyes, which contain direct dyes that do not require any oxidizing agent to develop their coloring performance. Accordingly, the colors are also less permanent than those that can be achieved with permanent dyes.

These color compositions based on direct dyes are usually applied either as tinting shampoos, as lotions or as tinting fixatives, possibly also as aerosol foam.

These compositions, insofar as they are solutions or lotions, often contain stabilizers with a thickening effect, in particular cellulose derivatives such as hydroxyethylcellulose.

A-12/9S

However, the stability and colour intensity achievable with these compositions are not satisfactory.

There was therefore a need for hair dye products based on direct dyes that are stable and have an improved dyeing effect compared to conventional compositions.

According to the invention, a composition for dyeing and tinting human hair is now provided, which contains at least one direct dye and additionally 0.1 to 7.5, preferably 0.25 to 5, in particular 0.5 to 2.5% by weight, calculated on the total composition, of at least one hydroxy-C2~C4-alkyl guar gum and/or a quaternization product of the same.

By adding the hydroxyalkyl guar derivatives, the color intensity, i.e. the color absorption capacity, of the composition is significantly increased compared to conventional products; the agent also has excellent stability.

The pH value of the agent according to the invention is in the range of 2 to 10, preferably between 4 and 9, in particular between about 6 and about 8.

A preferred hydroxy-C2~C4-alkyl guar gum derivative, which, as mentioned, is contained in the hair dyes and tints according to the invention in an amount of 0.1 to 7.5, preferably 0.25 to 5, in particular 0.5 to 2.5% by weight, is hydroxypropyl guar, i.e. the propylene glycol ether of guar gum, and quaternization products thereof, in particular hydroxypropyl guar hydroxypropyltrimonium chloride. Other suitable hydroxyalkyl guar derivatives are, for example, hydroxyethyl guar, hydroxybutyl guar and their quaternization products.

Suitable commercial products are available under the brand names
"Jaguar HP® ¹¹ , "Jaguar C-17®" and "Jaguar C-162®" as well as
"Galactosol®" on the market.

In principle, all dyes approved for this purpose can be used as direct hair dyes; particular reference is made to the German "Ordinance on Cosmetic Products (Cosmetics Ordinance)" in the currently applicable
Version, Annex 3.

However, cationic (basic) dyes are preferred, as their stability and color absorption capacity are increased by the addition of
of the guar gum derivatives according to the invention is particularly increased.

Particularly suitable basic (cationic) dyes are:

Basic Blue 6, C.I. No. 51,175;

Basic Blue 7, C.I. No. 42,595;

Basic Blue 9, C.I. No. 52,015;

Basic Blue 26, C.I. No. 44,045;

Basic Blue 41, C.I. No. 11-V154;

Basic Blue 99, C.I. No. 56,05 9;

Basic Brown 4, C.I. No. 21,010;

Basic Brown 16, C.I. No. 12,250;

Basic Brown 17, C.I. No. 12,251;

Basic Green 1, C.I. No. 42,040;

Basic Red 2

Basic Red 22

Basic Red 76, C.I. No. 12,245;

Basic Violet 1, C.I. No. 42,535;

Basic Violet 3, C.I. No. 42,555;

Basic Violet 10, C.I. No. 45,170;

Basic Violet 14, C.I. No. 42,510;

Basic Yellow 11

Basic Yellow 57, C.I. No. 12,719.

Possible acidic (anionic) dyes include

find:

Acid Black 1, C.I. No. 20,470;

Acid Blue 9, C.I. No. 42,090;

Acid Blue 74, C.I. No. 73,015;

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Acid Red 18, C.I. No. 16.25 5;

Acid Red 27, C.I. No. 16,185;

Acid Red 87, C.I. No. 45,380;

Acid Red 92, C.I. No. 45,410;

Acid Violet 43, C.I. No. 60,730;

Acid Yellow 1, C.I. No. 10,316;

Acid Yellow 23, C.I. No. 19,140;

Acid Yellow 3, C.I. No. 47,005;

D&C Brown No.l, C.I.-No. 20,170;

D&C Green No. 5, CI No. 61,570;

D&C Orange No.4 ₇ CI No. 15,510;

D&C Orange No.10, C.I. No. 45,425:1;

D&C Orange No.11, C.I. No. 45,425;

D&C Red No.21, C.I. No. 45,380:2;

D&C Red No.27, C.I. No. 45,410:1;

D&C Red No.33, C.I. No. 17,200;

D&C Yellow No.7, C.I. No. 45,350:1;

D&C Yellow No.8, C.I. No. 45,350;

FD&C Red No.4, C.I. No. 14,700;

FD&C Yellow No.6, C.I. No. 15,985.

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The proportion of direct dyes in the compositions according to the invention is variable and is between about 0.01 to about 1.5, preferably 0.05 to 1, in particular 0.1 to 0.5% by weight of the agent.

The hair dye and tinting agent according to the invention preferably contains at least one synthetic or natural hair conditioning polymer, preferably in an amount of 0.1 to 2.5, in particular 0.25 to 1.5% by weight of the total composition. Although in principle all types of polymers can be used, i.e. non-ionic, anionic, amphoteric and cationic polymers, cationic polymers are preferred within the scope of the invention.

In addition to the well-known quaternary cellulose derivatives of the type "Polymer JR", these include in particular quaternized homo- and copolymers of dimethyldiallylammonium chloride, as sold under the trade name "Merquat", quaternary vinylpyrrolidone copolymers, in particular with dialkylaminoalkyl (meth)acrylates, as known under the name "Gafquat", copolymers of vinylpyrrolidone and vinylimidazolinium methochloride, which are sold under the trade name "Luviquat", polyamino-polyamide derivatives, for example copolymers of adipic acid-dimethylaminohydroxypropyldiethylenetriamine, as sold under the name "Cartaretine F"

>*·» . .. A-12/95

as well as bisquaternary long-chain ammonium compounds of the urea structure described in US Patent 4,157,388, which are sold under the trade name "Mirapol A 15".

In this context, reference is also made to the cationic polymers mentioned in DE-OSs 25 21 960, 28 11 010, 30 44 738 and 32 17 059 as well as the products described in EP-A 337 354 on pages 3 to 7. Mixtures of different cationic polymers can also be used.

Instead of the cationic polymers or in combination with them, non-ionic polymers can also be used. Suitable non-ionic polymers are mainly vinylpyrrolidone homo- and copolymers, in particular polyvinylpyrrolidone itself, copolymers of vinylpyrrolidone and vinyl acetate or terpolymers of vinylpyrrolidone, vinyl acetate and vinyl propionate, such as those sold by BASF under the trade name "Luviskol".

However, (co)polymers made from various acrylic and methacrylic esters, acrylamide and methacrylamide, for example polyacrylamide with molecular weights of over 100,000, dimethylhydantoin-formaldehyde resins, etc., can also be used. Of course, mixtures of various non-ionic polymers can also be used.

Suitable anionic polymers within the scope of the invention are vinyl alkyl ether, in particular methyl vinyl ether/maleic acid copolymers, which are formed by hydrolysis of vinyl ether/maleic anhydride copolymers and are sold under the trade name "Gantrez AN or ES". These polymers can also be partially esterified, for example "Gantrez ES 225", the ethyl ester of an ethyl vinyl ether/maleic acid copolymer, or the butyl or isobutyl ester of the same.

Other suitable anionic polymers are in particular vinyl acetate/crotonic acid or vinyl acetate/vinyl neodecanoate/crotonic acid copolymers of the "Resyn" type; sodium acrylate/vinyl alcohol copolymers of the "Hydagen F" type, sodium polystyrene sulfonate, e.g. "Flexan 130"; ethyl acrylate/acrylic acid/N-tert-butylacrylamide copolymers of the "ültrahold" type; vinylpyrrolidone/vinyl acetate/itaconic acid copolymers, acrylic acid/acrylamide copolymers or sodium salts thereof of the "Reten" type; etc.

In principle, all anionic polymers suggested for use in hair care products can be used.

Amphoteric polymers that can be used either as an alternative to or in a mixture with the other, particularly cationic polymers, are in particular copolymers of N-octylacrylamide, (meth)acrylic acid and tert-butylaminoethyl-

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methacrylate of the "Amphomer" type; copolymers of methacryloylethylbetaine and alkyl methacrylates of the "Yukaformer" type, e.g. the butyl methacrylate copolymer "Yukaformer AM75"; copolymers of monomers containing carboxyl groups or sulfo groups, e.g. (meth)acrylic acid and itaconic acid, with basic, particularly amino-containing monomers such as mono- and dialkylaminoalkyl(meth)acrylates or mono- and dialkylaminoalkyl{meth)acrylamides; copolymers of n-octylamide, methyl methacrylate, hydroxypropyl methacrylate, N-tert.-butylaminoethyl methacrylate and acrylic acid as well as the copolymers known from US-A 3,927,199.

The color conditioning agents according to the invention can contain the additives customary in such compositions, the type and character of which depends on the application form of the agent. These are surfactants, in particular anionic surfactants such as long-chain N-acylaminocarboxylic acids and their salts such as N-lauroyl sarcosinate and glutamate, amphoteric surfactants such as betaines, e.g. cocoamidopropyl betaine, as well as nonionic and cationic surfactants, fats , fatty alcohols, emulsifiers, pH regulators, solvents and binding agents, solubilizers, preservatives, perfumes, etc.

The color conditioning agents according to the invention are available as an emulsion, dispersion or solution and can also be formulated as an aerosol foam. These compositions and their preparation are basically known to the person skilled in the art and therefore do not require any further explanation.

Particularly preferred are aqueous or aqueous-alcoholic solutions, for example based on 80 to 95% water and 5 to 20% lower alcohol such as ethanol, n-propanol or isopropyl alcohol.

The following examples describe the composition of the agents according to the invention and demonstrate their superiority over conventional products.

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Examples

number 1
Light brown
% by weight No. 2
Mahogany
% by weight No. 3
Medium blonde
% by weight Hydroxypropyl Guar 1.00 Guar Hydroxypropyl
trimonium chloride 1.00 Hydroxypropyl1-Guar-
hydroxypropyl tr imoni uiti-
chloride 2.00 Polyquaternium-7 0.80 0.80 0.80 Cocoamidopropyl betaine 1.00 1.00 1.00 Dimethicone Copolyol 0.10 0.10 0.10 Ethanol 5.00 5.00 5.00 Perfume 0.20 0.20 0.20 Basic Blue 99 0.066 Basic Red 7 6 0.030 Basic Brown 16 Basic Yellow 57 Basic Brown 17 0.050 0.200 0.036 Disperse Black 9 0.004 0.077 Disperse Blue 3 0.015 0.040 0.019 HC Red No. 3 0.060 0.360 0.024 Water ad 100.00 100.00 100.74

Replacing the hydroxypropyl guar or the quaternization products with the same amount of a conventional hydroxyethyl cellulose resulted in products whose color absorption capacity, i.e. color intensity, measured after 30 minutes of exposure at 30 "C, was on average 20 to 25% lower than that of the compositions according to the invention.

Claims (6)

Ä-I2/95U S chy tz^ „appeals 1. Agent for dyeing and tinting human hair, containing at least one direct dye in an aqueous or aqueous-alcoholic base, characterized in that it contains 0.1 to 7.5% by weight, calculated on the total composition, of at least one hydroxy-C2- _C4 -alkyl guar gum or its quaternary salts. 2. Agent according to claim 1, characterized in that it contains 0.25 up to 2.5% by weight, calculated on the total composition, of at least one hydroxyalkyl guar gum or its quaternary salts. 3. Agent according to claim 1 or 2, characterized in that it contains hydroxyalkyl guar gum, hydroxypropyl guar gum or a quaternary salt thereof. 4. Agent according to one or more of claims 1 to 3, characterized in that it contains at least one cationic dye as a direct dye. 5. Agent according to one or more of claims 1 to 4, characterized in that it has a pH value between 4 and 9. 6. Agent according to one or more of claims ¹¹ to 5, characterized in that it contains 0.1 to 2.5% by weight, calculated on the total composition, of at least one hair conditioning polymer.