DE4007808A1 - Aq. compsns. contg. two or more anionic surfactants - Google Patents

Abstract

Aq. surfactant compsns. contain a first anionic surfactant (I) and one or more other anionic surfactants (II). (I) is a sulphonate of a 12-24C unsatd. fatty acid contg. 1-6 double bonds. (II) are selected from fatty alcohol sulphates, alkoxylated fatty alcohol sulphates, alkoxylated carboxylic acids, sulphosuccinate esters, acyl sarcosides, acyl taurides, acyl isethionates, alpha-olefin sulphonates and sec. alkyl sulphonates.

Description

The invention relates to surface active mixtures with less Skin stress.

To enhance the cleaning effect of aqueous preparations, these usually contain surface-active compounds. Al However, an increased cleaning effect is usually included associated with increased skin stress. This is especially true for the important class of anionic surfactants.

This increased skin strain should be in the area of body cleansing medium be avoided. Especially for products that are for a Frequent use are designed to clean the intimate area serve richly or come into contact with mucous membranes good skin tolerance is important.

There is therefore a need for personal cleansers that are with sufficient cleaning performance and satisfactory their properties due to a significantly lower skin load award.  

It is known that ampholytic and nonionic surfactants compared to anionic surfactants often through improved skin mark compatibility. However, these classes of surfactants can be used for do not use many applications as a replacement for anionic surfactants det, because their properties in the cleaning effect do not reach. Also the foam formation desired for shampoos is for the exclusive or predominant use of Ampho surfactants are usually not guaranteed.

From a published in "Medical Cosmetology 13, 39-45 (1983)" light article can be seen, because the skin tolerance of Anion / amphoteric surfactant mixtures in individual cases above that of the pure Anionic surfactant. Thus the skin tolerance of Increase surfactant solutions in that the anionic surfactants partially to be replaced by amphoteric surfactants, but it must be with regard to important properties such as cleaning effect and foaming Disadvantages are accepted.

It was therefore the task to find cleaning agents that are both by a high cleaning performance and foaming, as also characterized by a significantly lower skin load.

It has now been found that with certain combinations of anion surfactants a synergistic increase in skin tolerance occurs. The formulation is based on these surfactant combinations of detergents possible that take advantage of anionic surfactants such as high cleaning performance and large foaming with a ge connect increased skin tolerance.

The invention relates to surface-active aqueous mixtures containing at least two different anionic surfactants, thereby characterized in that as anionic surfactants  

• a) a compound (A) which is a sulfonate of an unsaturated Fatty acid with 12 to 24 carbon atoms and 1 to 6 Represents C = C double bonds, and
• b) at least one compound (B) selected from the group the fatty alcohol ether sulfates, fatty alcohol sulfates, ether carbon acids, sulfosuccinic acid esters, acyl sarcosides, acyl taurides, Acyl isethionates, α-olefin sulfonates and secondary alkyl sulfo nate,

are included.

Sulfonates of unsaturated fatty acids are known in the literature. they are, for example, by reacting the fatty acids with gaseous Sulfur trioxide accessible. Using the example of oleic acid, individual the manufacturing process of the German patent application P 39 26 344.4, to which express reference is made will. Monounsaturated fatty acids are usually included implemented about the same amount of sulfur trioxide. More polyunsaturated fatty acids can both use the same substance amount of sulfur trioxide as well as an excess of sulfur trioxide can be implemented. Especially in the latter case arises such a mixture of single and multiple sulfonated products. For reasons of product quality, it is advantageous to use Ver ratio of the amount of sulfur trioxide used and more Limit polyunsaturated fatty acid to values less than 2.

It is known to the person skilled in the art that olefinic sulfonation unsaturated compounds not pure compounds, but Mixtures are obtained. When sulfonating unsaturated fat In addition to the unsaturated fatty acid sulfonates, acids are ent  speaking saturated hydroxy fatty acid sulfonates formed. The the two products are usually created in a ratio of about 70: 30 to 30: 70.

Since the properties of unsaturated fatty acid sulfonates and saturated hydroxy fatty acid sulfonates can be very similar in the surface-active mixtures according to the invention instead of pure unsaturated fatty acid sulfonates also the mixtures mentioned conditions with practically no influence on skin tolerance and foam education.

It is therefore usually the elaborate separation of the saturated fatty acid sulfonates from the saturated hydroxy fatty acid Do not carry sulfonates, but prefers those from the manufacturer use the resulting mixtures.

In the context of this application, the term "sulfo nate unsaturated fatty acids "both the unsaturated fatty acids sulfonates as well as the mixtures obtained during production from unsaturated fatty acid sulfonates and saturated hydroxy fat understood acid sulfonates.

According to the invention, both the sulfonates can be more unsaturated Fatty acids as well as the sulfonates of fatty acid mixtures be set. Mixtures consisting of natural raw materials such as oils can be obtained.

Examples of unsaturated fatty acids which can be lauroleic acid, Myristoleic acid, palmitoleic acid, petroselinic acid. Petrosel Aidic acid, oleic acid, elaidic acid, linoleic acid, linolaidic acid, Linolenic acid, oleostearic acid, gadoleic acid, arachidonic acid,  Erucic acid, brassidic acid, eicosapentaenoic acid, clupanodonic acid and docosahexaenoic acid can be used.

Preferred unsaturated fatty acids contain 12 to 24 carbons atoms and 1 to 3 C = C double bonds, such as Petroselinic acid, oleic acid, elaidic acid, linoleic acid, linolenic acid, Arachidonic acid, erucic acid and brassidic acid.

The unsaturated fatty acids with 18 are particularly preferred Carbon atoms and 1 to 3 C = C double bonds.

Oleic acid is very particularly preferred.

The sulfonates of unsaturated fatty acids are in the Invention according to surface-active mixtures, preferably in amounts of 1 up to 99% by weight, based on the total amount of anionic surfactants hold.

Preferred compounds (B) are fatty alcohol ether sulfates.

Among fatty alcohol ether sulfates, the sulfates are the additive products of ethylene oxide (EO) and / or propylene oxide (PO) on ge saturated and / or unsaturated, linear and / or branched fat understand alcohols accessible by known methods are.

It is known to the person skilled in the art that in alkoxylation reactions such as the addition of x mol of ethylene oxide to 1 mol Fatty alcohol according to the known ethoxylation processes uniform adduct, but a mixture of residual free fat alcohol and a number of homologous (oligomeric) addition products of 1, 2, 3,. . . x, x + 1, x + 2. . . etc. molecules of ethylene oxide each  Molecule of fatty alcohol is obtained. The average degree of ethoxylation (x) is defined by the initial quantities of fatty alcohol and ethylene oxide. The distribution curve of the homologue mixture points usually a maximum in the range between x-3 and x + 3. Further information can be found, for example, in the magazine Soap / Cosmetics / Chemical Specialties, issue January 1988, p. 34, be removed.

The fatty alcohols on which the fatty alcohol ether sulfates are based can be pure connections. However, it is usually before trains to use mixtures of different fatty alcohols obtained from native raw materials such as fats and oils. These Fatty alcohols can, for example, with the alkylene oxides Pressure and in the presence of catalysts to fatty alcohol alkoxy be implemented. By implementing the fatty alcohol alkoxylates with, for example, sulfur trioxide or chlorosufonic acid and closing neutralization, for example with alkali metal, Alkaline earth metal, aluminum or ammonium hydroxides finally get the desired fatty alcohol ether sulfates.

Preferred fatty alcohol ether sulfates (B1) are compounds according to Formula (I),

R¹-O- (C _m H _2m O) _v -SO₃X (I)

in which R¹ is a saturated or olefinically unsaturated, linear or branched alkyl radical having 8 to 22 carbon atoms, m 2 or 3, v a number from 1 to 15 and X is hydrogen, an alkali metal Alkaline earth metal, aluminum, an ammonium group or an alkyl or alkylolammonium group with 1 to 4 carbon atoms in each alkyl or alkylol group.  

The compounds in which R is sown are particularly preferred saturated alkyl radical with 8 to 16 carbon atoms, m = 2, v is a number of about 2 to 10 and X sodium, potassium, magnesium, aluminum, ammo nium or a mono-, di- or triethanolammonium group.

Particularly advantageous synergies with regard to skin tolerance and the foaming behavior were found in mixtures which the Anionic surfactants (A) and (B1) in a ratio of about 50:50 up to about 10:90.

Further preferred compounds (B) are sulfosuccinic acid ester.

Preferred sulfosuccinic acid esters (B2) are compounds according to Formula (II),

in which R² is a saturated or olefinically unsaturated, linear or branched alkyl radical having 8 to 22 carbon atoms, m 2 or 3, w = 0 or a number from 1 to 15, Z an alkali metal, an alkaline earth metal, aluminum, an ammonium group, an alkyl or alkylol ammonium group with 1 to 4 carbon atoms in each alkyl or alkylol group and Z ′ an alkali metal, an alkaline earth metal, aluminum, an ammonium group, an alkyl or alkylolammonium group with 1 to 4 carbon atoms in each alkyl or alkylol group or a group R²- (OC _m H _2m ) _w -.

The sulfosuccinic acid semiesters are particularly preferred. At these compounds, Z ′ is an alkali metal, an alkaline earth metal, Aluminum, an ammonium group or an alkyl or alkylolam monium group with 1 to 4 carbon atoms in each alkyl or alkylol group. The compounds in which R a saturated alkyl radical with 8 to 16 carbon atoms, n = 2, w a Number from about 5 to 12 and Z 'is sodium.

Particularly advantageous synergies with regard to skin tolerance and the foaming behavior were found in mixtures which the Anionic surfactants (A) and (B2) in a ratio of about 50:50 up to about 10:90.

Fatty alcohol sulfates can also be used as compounds B. will. Preferred fatty alcohol sulfates are compounds of the formula R³-O-SO₃Y, in which R³ is a saturated or olefinically unsaturated ter, linear or branched alkyl radical having 8 to 22 carbon atoms and Y hydrogen, an alkali metal, an alkaline earth metal, aluminum, an ammonium group or an alkyl or alkylolammonium group with 1 to 4 carbon atoms in each alkyl or alkylol group.

Ether carboxylic acids to be used according to the invention as compounds B. are compounds of the formula

R⁴-O- (C _m H _2m O) _r -CH₂-COOW,

in the R⁴ is a saturated or olefinically unsaturated, linear or branched alkyl radical having 8 to 22 carbon atoms, m 2 or 3, r is a number from 1 to 15 and W is hydrogen, an alkali metal, an alkaline earth metal, aluminum, an ammonium group or one Is alkyl or alkylolammonium group with 1 to 4 carbon atoms in each alkyl or alkylol group. Ether carboxylic acids of the type mentioned are sold, for example, by the company CHEM-Y under the name "Akypo ^(R) ".

Those which can be used according to the invention as a further anionic surfactant class (B) Acyl sarcosides are reaction products of fatty acids with N-methyl glycine with the general formula

R⁵-CO-N (CH₃) -CH₂-COOH,

in which R⁵-CO is a fatty acyl radical with 8-22 carbon atoms, preferably with 10-18 C atoms.

The acyl taurides are reaction products of Fatty acid chlorides with N-methyl taurine with the general formula

R⁶-CO-N (CH₃) -CH₂-CH₂-SO₃Na,

where R⁶-CO has a fatty acyl residue Represents 8-22 carbon atoms, especially with 10-18 carbon atoms Instead of sodium, other counterions such as, for example other alkali metal ions, alkaline earth metal ions or ammonium ions can be present.

Acyl isethionates are usually made by reacting fatty acids Rechloriden with sodium isethionate and have the general my formula

R⁷-CO-O-CH₂-CH₂-SO₃Na,

where -R⁷-CO is a fatty acyl residue with 8-22 carbon atoms, in particular with 10-18 carbon atoms, and other counterions such as, for example, instead of sodium other alkali metal ions, alkaline earth metal ions or ammonium ions can be present.

α-olefin sulfonates are usually obtained by sulfonating α- Olefins with SO₃ and subsequent hydrolysis of the resultant Sultons made. The product called α-olefin sulfonate usually consists of about 60% alkene sulfonates of the formula

R⁸-CH₂-CH = CH- (CH₂) _k -SO₃Na

and about 40% from hydroxyalkane sul fonaten of the formula

R⁹-CH₂-CHOH- (CH₂) _f -SO₃Na,

where R⁸ is an alkyl group with about 8 to 12 carbon atoms, R⁹ an alkyl group with about 7 up to 13 carbon atoms, and k and f independently of one another a number 1, 2 or 3.  

Secondary alkyl sulfonates are by sulfochlorination or sulfo xation of linear paraffins accessible and have the general formula

R¹⁰-CH (SO₃Na) -R¹¹,

in the R¹⁰ and R¹¹ linear alkyl groups represent with 1-10 carbon atoms, the sum of the carbon atoms in R¹⁰ and R¹¹ is 10 to 20, and others in place of sodium Counterions such as other alkali metal ions, alkaline earth metal ions or ammonium ions can be present.

The surface-active mixtures according to the invention contain ins a total of about 2-50% by weight of anionic surfactants. A content of 5-30% by weight is preferred.

Furthermore, the surface-active mixtures according to the invention In addition to the anionic surfactants, 0.5-20% by weight, in particular 1-10% by weight of ampholytic, zwitterionic and / or not contain ionic surfactants.

Ampholytic surfactants are surface-active Compounds understood that apart from a C₈-C₁₈ alkyl or acyl group in the molecule at least one free amino group and at least contain a -COOH or -SO₃H group and to form internal Salts are capable. Examples of suitable ampholytic surfactants are N-alkylglycines, N-alkylpropionic acids, N-alkylaminobutyric acid ren, N-alkyliminodipropionic acids, N-hydroxyethyl-N-alkylamidopro pylglycine, N-alkyltaurine, N-alkyl sarcosine, 2-alkylaminopropion acids and alkylaminoacetic acids, each with about 8 to 18 carbon atoms men in the alkyl group.

Zwitterionic surfactants are those surface-active compounds which carry at least one quaternary ammonium group and at least one -COO ^(-) - or -SO₃ ^(-) group in the molecule. Particularly suitable zwitterionic surfactants are the so-called betaines such as N -Alkyl-N, N-dimethylammonium glycinate, for example the cocoalkyl-dimethylammonium glycinate, N-acyl aminopropyl-N, N-dimethylammonium glycinate, for example the coconut acylaminopropyl-dimethylammonium glycinate, and 2-alkyl-3-car boxylmethyl-3-hydroxyethyl- imidazolines each with 8 to 18 carbon atoms in the alkyl or acyl group and the cocoacylaminoethyl hydroxyethylcarboxymethylglycinate.

Suitable nonionic surfactants are e.g. B. oxyethyl fatty acid mono- and -diglycerides and fatty acid sorbitan esters and ethylene oxide-propylene oxide block polymers. Preferred nonionic surfactants are alkylglycosides of the general formula RO- (G) _x , in which R denotes a primary straight-chain or aliphatic radical branched with methyl in the 2-position with 8 to 22, preferably 12 to 18, C atoms, G is a symbol is, which stands for a glycose unit with 5 or 6 carbon atoms, and the degree of oligomerization x is between 1 and 10. The addition of alkyl glycosides is particularly advantageous when the mixtures should have good foaming behavior, that is to say a large and stable amount of foam.

The skin-protecting properties of the agents according to the invention especially when they are formulated in such a way that they have a pH near the neutral point. Agents with pH values in the range of 5.5-7.5, especially of 6.5-7.5 are therefore preferred.  

The agents according to the invention can be used in a variety of ways ment products such as hair shampoos, foam baths, shower baths, rivers soaps and manual dishwashing detergents.

In addition to the surfactant combinations described, these products contain the usual ingredients such as emulsifiers, oil components, fats and waxes, solubilizers, thickeners, superfatting agents tel, biogenic agents, film formers, fragrances, dyes, pearl glossing agents, foam stabilizers, preservatives and pH Regulators.

Other emulsifiers that can be found in cosmetic preparations usual substances such. B. fatty acid partial glycerides, fat partial acid sorbitan esters and their ethoxylates, soaps, fat alcohol polyglycol ether, lanolin, wool fatty alcohols and alkylphos phate can be used.

Common oil components are substances such as paraffin oil, vegetable oils, Fatty acid esters, squalane and 2-octyldodecanol while as fats and waxes, for example, walrus, beeswax, montan wax, paraf fin and cetyl stearyl alcohol are used.

Low or are usually used as solubilizers polyhydric alcohols such as ethanol, isopropanol, ethylene glycol, Pro pylene glycol, glycerin, 1,3-butylene glycol and diethylene glycol ver turns.

Substances such as polyethoxylated La Use noline derivatives, lecithin derivatives and fatty acid alkanolamides be det, the latter at the same time as Schaumsta serve bilisators.  

Suitable thickeners are, for example, polysaccharides, in particular xanthan gum, guar gum, agar agar, alginates and Ty loose, as well as carboxymethyl cellulose and hydroxyethyl cellulose. Furthermore, fatty alcohol alkoxylates, in particular fatty alcohol ethoxylates, preferably with a restricted one Homolog distribution, as from the German Offenlegungsschrift 38 17 415 known, are used, further higher molecular weight poly ethylene glycol mono- and diesters of fatty acids, polyacrylates, Polyvinyl alcohol and polyvinyl pyrrolidone and finally elec trolytes such as table salt and ammonium chloride, if desired in com combination with alkyl ether sulfates.

Plant extracts, protein degradation pro are among biogenic active substances to understand products and vitamin complexes.

Common film formers are, for example, polyvinyl pyrrolidone, Vinylpyrrolidone-vinyl acetate copolymers, polymers of acrylic acidic, quaternary cellulose derivatives and similar compounds gene.

The preservatives in the Kos plant are suitable listed substances.

Glycol distearic acid esters in particular come as pearlescent agents such as ethylene glycol distearate, but also fatty acid monoglycol esters in Consider.

Suitable dyes for cosmetic purposes and approved substances are used, such as in the publication "Cosmetic Dyes" by the Farstoffkommis  sion of the German Research Foundation, published in Ver lay Chemie, Weinheim, 1984. This color substances are usually used in concentrations of 0.001 to 0.1 % By weight, based on the mixture as a whole.

Further components of the agents according to the invention are desired If necessary, fragrances and substances that Serve the value of the means.

The mixtures according to the invention are preferred in products used for washing, dyeing, waving or rinsing hair serve. The mixtures are particularly suitable for shampoos Shampooing.

The invention is illustrated by the following examples tert without restricting them to it.  

Examples 1. Skin tolerance tests

To determine the skin tolerance of the surfactant mixtures uses the in vitro method developed by Zeidler and Reese, which in the journal medical cosmetology 13, 39-45 (1983) is shown in detail.

Served as a measure of the skin tolerance of the surfactant mixtures the swelling of pig epidermis. This was the required Epidermis won immediately after slaughter of young pigs and stored frozen.

Punched-out epidermis strips of size were used for the measurement Immersed 1 cm × 6 cm in the surfactant solutions for 30 minutes each contained 2 wt .-% active substance, tempered to 39 ° C. and were adjusted to pH = 6.5. Then after a short rinse len and remove the adhering water by gently squeezing the weight of the swollen strips under defined conditions certainly. The strips were then covered with calci for 24 hours umchlorid drained and weighed again. To avoid influences that relate to specific properties of the animal or the place of removal (back, side) went back, one became Standard measurement carried out. A immediately adjacent bearded epidermis strip in the same way with water instead of Treated surfactant solution.

The measured values t for the surfactant treatment and w for the treatment with water result from the relationship:  

The standardized, relative swelling change Q is finally defined as

The Q value of water-treated skin is therefore by definition 0%; negative values indicate anti-swelling properties there.

In the examples, the surfactant com listed below components used. The number before "EO" indicates the middle one Degree of ethoxylation (w in formula II).

A1: oleic acid sulfonate di-sodium salt

The substance was after in the German patent application 39 26 344.4 disclosed regulation by gas phase sulfonation of oleic acid and subsequent neutralization / hydrolysis with Sodium hydroxide solution produced. Tech served as the starting link African oleic acid, which is called "Edenor Ti 05" by the applicant is distributed and in addition to about 67% oleic acid in essential linoleic acid (12%), palmitic acid (5%) and Pal mitoleic acid (5%) contains. The product was a mixture of Ratio of oleic acid sulfonate and hydroxystearic acid sulfonate 70: 30. The mixture was used without further separation.  

B1a: surfactant mixture TM

The surfactant mixture TM was produced as follows:
A mixture of 96 kg of an adduct of 10 moles of ethylene oxide with a coconut fatty alcohol C₁₂-C₁₈ (54 weight percent C₁₂, 22 weight percent C₁ Ge, 10 weight percent C₁₆, 12 weight percent C₁₈), 113 kg of an adduct of 2 mole ethylene oxide with a coconut fatty alcohol C₁₂-C₁₄ (73 percent by weight C₁₂, 27 percent by weight C₁₄) and 24.5 kg of an adduct of 2 moles of ethylene oxide with an oleyl-cetyl alcohol (65 percent by weight C₁₈, 30 percent by weight C₁₆, 5 percent by weight C₁₄, iodine number 50) was 74.4 kg Chlorosulfonic acid at a temperature of 10 to 20 ° C in a continuous reactor to sulfuric acid half ester and then neutralized with 55.5 kg of a 50% aqueous sodium hydroxide solution, diluted with 660 kg of water. The alkyl ether sulfate obtained had an anionic surfactant content of 0.592 mol / kg (determined by two-phase titration according to DGF standard method H-III-10).

28.2 g of MgSO₄.7 H₂O (0.114 Mol), 4.6 g of trisodium citrate and 65 g of sodium chloride (1.1 mol) given. The surfactant mixture TM thus obtained had an anion surfactant content of approx. 0.59 mol / kg corresponding to approx. 28 Ge percent by weight (calculated with an average molecular weight the anionic surfactant from 475).

B1b: Texapon K 14 S Spezial (HENKEL)
Lauryl myristyl (50:50) ether sulfate sodium salt (28% active ingredient)

B2a: Texapon ^(R) SB 3 (HENKEL)
Sulfosuccinic acid semiesters based on a C _12-14 - alkyl polyglycol (3 EO) ether, disodium salt (40% active substance); CTFA name Disodium Laurethsulfosuccinate

The results of the swelling measurements are shown in the following Ta belle put together. The quantity specification refers to the total amount of 2% anionic surfactant.

2. Determination of the foaming behavior

The foaming behavior of the surfactants and surfactant mixtures was included a motorized blow foam device based on DIN 53902 determined.  

340 ml of surfactant solution (2% by weight of active substance in tap water from Düsseldorf-Holthausen with 18 ° dH) poses. The foam was perforated at room temperature (Holes of 1 mm diameter, 10 impacts at a frequency of 50 beats / min, 13 cm stroke); it was very fine-pored and corresponded largely to one when shampooing on the head emerging foam. The measurements were made without fat exposure Tenside solution carried out as a double determination.

As a comparison, the foaming behavior was considered to be good foaming known mix of

42% by weight Texapon ^(R) N 25 ¹⁾ , (= 12% active substance)
10% by weight Dehyton ^(R) K ²⁾ , (= 3% active substance)
1% by weight Comperlan ^(R) LS ³⁾ (= 1% active substance) and
47 weight percent water
certainly.

¹) Aqueous solution of sodium lauryl ether sulfate (approx. 28% active substance) (HENKEL)
²) Aqueous solution of a fatty acid amide derivative with betaine structure of the formula R-CONH- (CH₂) ₃-N⁺ (CH₃) ₂-CH₂-COO ^- with the CTFA name Cocamidopropyl Betaine (approx. 30% active substance, approx. 5% NaCl, (HENKEL)
³) Mixture of coconut fatty acid diethanolamide (approx. 70%) and lauryl alcohol + 2 ethylene oxide (approx. 20%); Balance: water, free amine, free fatty acid, ester (HENKEL)

This mixture was diluted with water and also in the form a solution with 2 wt .-% active substance. Fol the amount of foam measured:  

after 1 minute: 240 ml
after 3 minutes: 210 ml
after 5 minutes: 190 ml

The measured amounts of foam of the surfactant solutions according to the invention are in the following table in percent based on the foam amount of the reference substance given. The quantity specification relates refer to the total amount of 2% anionic surfactant.

3. Foam behavior of mixtures with nonionic surfactants

The foaming behavior of mixtures in addition to the binary anion surfactant mixture containing a nonionic surfactant was in determined in the same way as for the binary surfactant mixtures. The aqueous mixtures each contained 2% of active substance.

APG-600 (HORIZON) was used as the nonionic surfactant, an aqueous solution of RO (Z) _x with Z = glucose, x = 1.4 and R = n-alkyl- (C _12-14 ) with 50% active substance content.

The measured amounts of foam of the surfactant solutions according to the invention are in the following table in percent based on the foam amount of the reference substance given. The quantity specification relates refer to the total amount of 2% active substance.

4. Examples of use:

1. clear shampoo, especially suitable for oily hair

The hair showed one after treatment with this shampoo very good wet combability and very good dry combability.

2. Clear shampoo, especially suitable for damaged hair

The hair showed one after treatment with this shampoo very good wet combability and very good dry combability on.

3. Creamy, clear shampoo

The hair showed one after treatment with this shampoo excellent wet combability and excellent dry combing availability.

Claims (15)

1. Surface-active aqueous mixtures containing at least two different anionic surfactants, characterized in that the anionic surfactants

• a) a compound (A) which is a sulfonate of an unsaturated fatty acid having 12 to 24 carbon atoms and 1 to 6 C = C double bonds,
  and
• b) at least one compound (B) selected from the group consisting of fatty alcohol ether sulfates, fatty alcohol sulfates, ether carboxylic acids, sulfosuccinic acid esters, acyl sarcosides, acyl taurides, acyl isethionates, α-olefin sulfonates and secondary alkyl sulfonates,

are included. 2. Mixtures according to claim 1, characterized in that the Compound (A) having a sulfonate of an unsaturated fatty acid 12 to 24 carbon atoms and 1 to 3 C = C double bonds represents. 3. Mixtures according to one of claims 1 or 2, characterized records that compound (A) is a sulfonate of an unsaturated saturated fatty acid with 18 carbon atoms and 1 to 3 C = C-Dop represents fur bonds.   4. Mixtures according to one of claims 1 to 3, characterized records that compound (A) is oleic acid sulfonate. 5. Mixtures according to one of claims 1 to 4, characterized records that it contains compound (A) in amounts of 1 to 99 % By weight, based on the total amount of anionic surfactants ten. 6. Mixtures according to one of claims 1 to 5, characterized indicates that the compound (B) is selected from the group the fatty alcohol ether sulfates and sulfosuccinic acid esters. 7. Mixtures according to one of claims 1 to 6, characterized in that they contain as the anionic surfactant (B1) fatty alcohol ether sulfates according to formula (I), R¹-O- (C _m H _2m O) _v -SO₃X (I) in the R¹ a saturated or olefinically unsaturated, linear or branched alkyl radical having 8 to 22 carbon atoms, m 2 or 3, v a number from 1 to 15 and X being hydrogen, an alkali metal, an alkaline earth metal, aluminum, an ammonium group or an alkyl or alkylolammonium group with 1 to 4 carbon atoms in each alkyl or alkylol group. 8. Mixtures according to one of claims 1 to 7, characterized records that it contains the anionic surfactants (A) and (B1) in one menu ratio of from about 50:50 to about 10:90.   9. Mixtures according to one of claims 1 to 8, characterized in that they contain sulfosuccinic acid esters according to formula (II) as anionic surfactants (B2), in which R² is a saturated or olefinically unsaturated, linear or branched alkyl radical having 8 to 22 carbon atoms, m 2 or 3, w = 0 or a number from 1 to 15 and Z is an alkali metal, an alkaline earth metal, aluminum, an ammonium group , an alkyl or alkylolammonium group with 1 to 4 carbon atoms in each alkyl or alkylol group and Z ′ an alkali metal, an alkaline earth metal, aluminum, an ammonium group, an alkyl or alkylolammonium group with 1 to 4 carbon atoms in each alkyl- or alkylol group or a group R²- (OC _m H _2m ) _w -. 10. Mixtures according to one of claims 1 to 9, characterized records that it contains the anionic surfactants (A) and (B2) in one menu ratio of about 50:50 to about 10:90. 11. Mixtures according to one of claims 1 to 10, characterized characterizes that it additionally 0.5-20 wt .-%, in particular 1-10 wt .-%, on ampholytic, zwitterionic and / or not ionic surfactants, based in each case on the entire mixture, contain. 12. Mixtures according to one of claims 1 to 11, characterized records that it has a pH of 5.5-7.5, especially of 6.5-7.5.   13. Mixtures according to one of claims 1 to 12, characterized records that they are formulated as a shampoo. 14. Use of mixtures according to one of claims 1 to 13 for hair treatment.