DE9317968U1 - Foaming emulsions - Google Patents

Description

HENKEL KGaA

Dr. Fabry/22O-3-APG
20 January 1993

Patent application

H0578
Foaming emulsions

Field of the invention

The invention relates to foaming emulsions based on alkyl oligoglycosides, a process for their preparation, in which a pre-emulsion is prepared from an oil phase and a polymer phase and a surfactant phase is stirred into this, shower gels containing these emulsions and the use of the emulsions for the production of hair and body care products.

State of the art

Alkyl oligoglycosides are non-ionic surfactants which, in addition to good foaming and cleaning properties, are also characterized by easy biodegradability and particularly advantageous dermatological compatibility. For this reason, this class of surface-active compounds is becoming increasingly important for the manufacture of cosmetic products. Reviews on this topic have been published, for example, by D. Balzer et al. in Tens. Surf. Det. .28., 419 (1991) and Seifen-Öle-Fette-Wachse 118 , 894 (1992) .

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Alkyl oligoglycosides and especially alkyl oligoglucosides are generally known as ingredients in a variety of cosmetic products.

Already in the publication Riv.Ital. .56., 567 (1974) recipes for hair shampoos and shower gels are disclosed, for example, which contain sulfosuccinates in addition to short-chain alkyl oligoglucosides.

For example, European patent specifications EP-BO 070 074, EP-BO 070 075, EP-BO 070 076 and EP-BO 070 077 (Procter & Gamble) disclose foaming detergent mixtures which, in addition to alkyl oligoglucosides, contain a large number of anionic, non-ionic and amphoteric surfactants.

Furthermore, mixtures of alkyl oligoglucosides with alkyl (ether) phosphates ( EP-AO 324 451), cationic polymers (EP-AO 337 354), monoalkyl sulfosuccinates (EP-AO 358 216), silicone compounds (EP-AO 398 117) and sugar esters (EP-AO 409 005, all Kao) are also known, which can be used for cosmetic purposes. The German patent specification DE-B 41 29 926 (Kao) also relates to tinting shampoos which, in addition to alkyl oligoglucosides, can contain sulfosuccinates, sarcosinates and amine oxides.

Shower gels and hair shampoos are known from European patent applications EP-AO 384 983 and EP-AO 490 041 (Hüls) which contain ether carboxylic acids and electrolyte salts or sulphate surfactants in addition to alkyl oligoglucosides. The use of mixtures containing alkyl oligoglucosides, polymers and salts as thickeners for surfactants in cosmetics is

•t

·

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in the German patent application DE-A-41 14 141 (Hüls).

The subject of German patent application DE 36 40 755 (Henkel) are aqueous, flowable pearlescent concentrates containing mixtures of alkyl oligoglucosides and polyethylene glycol esters or fatty acid alkanolamides. German patent application DE 40 33 928 (Henkel) also discloses oil-in-water emulsions which, in addition to alkyl oligoglucosides, contain oil components, fatty acid partial glycerides and saturated alcohols.

From a review by B. Brancq in Seifen-Öle-Fette-Wachse 118 , 905 (1992) shampoos are also known that contain octyldecyl glucoside, collagen derivatives and polymers. Finally, the same document discloses recipes of Cq/iq-alkyl glucoside and sulfosuccinates.

However, in the area of hair and body care products, there is still a growing need for particularly mild products that combine aspects of cleansing and care in addition to good dermatological compatibility. A typical example of this is so-called "two-in-one" shower gels or bubble baths that cleanse and moisturize the skin at the same time.

Although such products are generally known, they often leave a lot to be desired from an application point of view: the emulsions do not display any cosmetic elegance, i.e. they gel and are difficult to absorb into the skin, instead of a creamy micro-foam they only provide a coarse-pored

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Macrofoam. The production of stable emulsions of the type mentioned, which do not separate during long-term storage, has also proven difficult in the past and requires complex homogenization technology.

The object of the invention was therefore to develop new foaming emulsions which are free from the disadvantages described.

Description of the invention

The invention relates to foaming emulsions containing

A) Oily substances selected from the group consisting of fatty alcohol polyglycol ethers, Guerbet alcohols, fatty acid alkyl esters, polyol partial esters, dialkyl ethers and paraffin hydrocarbons,

B) anionic and/or non-ionic polymers,

C) fatty alcohol sulfates and/or fatty alcohol polyglycol ether sulfates,

D) Alkyl oligoglycosides,

E) cationic surfactants or polymers,

F) Electrolyte salts and

G) Water.

Surprisingly, it was found that the emulsions according to the invention have a high cosmetic elegance, i.e. they have a creamy consistency and are easily absorbed by the skin. Furthermore, they provide a rich, creamy micro-

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foam. The emulsions according to the invention have a high cleaning performance and combine this with an astonishing moisturizing power, which makes the application of a skin cream practically unnecessary.

Foaming emulsions with the following composition have proven to be particularly advantageous:

1 to 5 wt.% fatty alcohol polyglycol ether,

1 to 5 wt.% Guerbet alcohols,

1 to 5 wt.% polyol partial ester,

1 to 5 wt.% anionic polymers,

15 to 30 wt.% fatty alcohol polyglycol ether sulfates,

15 to 30 wt.% alkyl oligoglycosides,

0.1 to 10 wt.% cationic surfactants or polymers,

0.1 to 3 wt.% electrolyte salts and

ad 100 wt.% water.

The invention further relates to a process for producing foaming emulsions, in which a pre-emulsion is prepared from an oil phase I containing

al) fatty alcohol polyglycol ethers,

(a2) Guerbet alcohols,

a3) fatty acid esters,

a4) polyol partial esters,

a5) Dialkyl ethers and/or

a6) Paraffin hydrocarbons

and an aqueous polymer phase II and into this at 50 to 70 ⁰ C an aqueous surfactant phase III containing

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el) fatty alcohol sulphates,

c2) fatty alcohol polyglycol ether sulfates,

c3) Alkyl oligoglycosides,

c4) cationic surfactants or polymers and/or

c5) Electrolyte salts

incorporates.

Surprisingly, it was found that emulsions that are stable over a long period of time can be obtained using the process according to the invention. Extensive tests have shown that both the storage stability and the appearance of the emulsions are very closely linked to the composition of the three phases and the sequence of the production steps.

Ingredients of oil phase I

Low and medium spreading oils can be considered as ingredients for the oil phase, which are responsible for the moisturizing properties of the emulsions according to the invention. A combination of the three components a1), a2) and a4) has proven to be particularly advantageous.

As component a1) fatty alcohol polyglycol ethers of formula (I) may be considered,

R ¹ O-(CH ₂ CH ₂ O) _x H (I)

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in which R^ is an alkyl radical with 12 to 22 carbon atoms and &khgr; is a number from 5 to 30.

Typical examples are addition products of an average of 5 to 30, preferably 10 to 25 moles of ethylene oxide with lauryl alcohol, myristyl alcohol, cetyl alcohol, stearyl alcohol, isostearyl alcohol, arachyl alcohol and behenyl alcohol as well as technical mixtures thereof, such as those obtained, for example, in the high-pressure hydrogenation of methyl ester fractions or aldehydes from Roelen's oxo synthesis. The use of an adduct of approx. 20 moles of ethylene oxide with technical cetylstearyl alcohol is particularly preferred.

Guerbet alcohols of formula (II) are suitable as component a2),

_CH2OH

CH ₃ CH ₂ (CH ₂ ) yCH-( CH ₂ )y_ ₂ CH ₂ CH ₃ (II)

where y stands for numbers from 6 to 12.

These are primary, branched alcohols that are produced in a known manner by base-catalyzed dimerization of fatty alcohols. Typical examples are 2-hexyldecanol, 2-octyldodecanol and 2-decyltetradecanol.

The fatty acid esters of component a3) are understood to mean compounds of formula (III),

R ² CO-OR ³

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in which R^CO is an aliphatic acyl radical with 6 to 22 carbon atoms and 0, 1, 2 or 3 double bonds and R^ is a linear or branched alkyl radical with 1 to 4 carbon atoms. Typical examples are ethyl, propyl, butyl and especially methyl esters of caproic acid, caprylic acid, capric acid, lauric acid, myristic acid, palmitic acid, palmoleic acid, stearic acid, isostearic acid, oleic acid, elaidic acid, petroselic acid, linoleic acid, linolenic acid, eleostearic acid, arachidic acid, gadoleic acid, behenic acid and erucic acid as well as technical mixtures thereof, such as arise, for example, in the pressure splitting of natural fats and oils or as a monomer fraction in the dimerization of unsaturated fatty acids. Ci5/ig fatty acid methyl esters are preferably used.

The compounds of component a4) are polyol partial esters, more precisely esters of glycerin or oligoglycerin or oligoglycerin polyglycol ethers with fatty acids having 12 to 22 carbon atoms. In addition to glycerin, technical oligoglycerin mixtures with an average degree of self-condensation of 2 to 10, preferably 2 to 5, and the addition products of 1 to 10, preferably 2 to 5, ethylene oxide on average with these oligoglycerins can be considered as polyol components. The fatty acid component can be selected from lauric acid, myristic acid, palmitic acid, stearic acid, isostearic acid, oleic acid, ricinoleic acid and behenic acid, as well as technical mixtures thereof. Typical examples of polyol partial esters that can be used according to the invention are partial esters of diglycerin and diglycerin-2EO adduct with stearic acid.

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Suitable dialkyl ethers (component a5) are compounds of the formula (IV),

r4_ ₀ _ _r5

in which R^ and R^ independently represent alkyl radicals having 6 to 22 carbon atoms.

These are known substances that can be obtained by the relevant processes of preparative organic chemistry. Processes for their preparation, for example by condensation of fatty alcohols in the presence of p-toluenesulfonic acid, are known, for example, from Bull.Soc. Chim. France, 333 (1949), DE-Al 40 39 950 (Hoechst) and DE-Al 41 03 489 (Henkel). From an application point of view, symmetrical dialkyl ethers are preferred that have 6 to 12 carbon atoms in the alkyl radicals. Dialkyl ethers of the formula (IV) in which R^ and R^ are octyl and/or 2-ethylhexyl radicals have a particularly rapid spreading capacity. The dialkyl ethers that are particularly preferred for the purposes of the invention are therefore di-n-octyl ether and di-2-ethylhexyl ether.

Paraffin hydrocarbons (component a6) are finally known technical alkane mixtures, as they are usually used as oil bodies in cosmetic products. These are preferably thin-bodied paraffins with a density of 0.81 to 0.875.

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The proportion of the ingredients of the oil phase in the total emulsion can have the following limits:

al) 1 to 5, preferably 1 to 2 wt.%;

a2) 1 to 5, preferably 2 to 4 wt.%;

a3) 1 to 5, preferably 2 to 4 wt.%;

a4) 1 to 5 ₇ , preferably 2 to 4 wt.%;

a5) 1 to 5, preferably 2 to 4 wt.%;

a6) 1 to 5, preferably 2 to 4 wt.%.

The proportion of the oil phase in the emulsion according to the invention can be 6 to 30 and preferably 11 to 22% by weight - based on the emulsion. Another surprising effect is that the emulsions according to the invention still have a pronounced foaming ability despite this high oil load.

Ingredients of polymer phase II

The aqueous polymer phase contributes significantly to the appearance of the emulsions according to the invention. Possible ingredients are anionic and/or non-ionic polymers.

Aqueous, anionic polystyrene dispersions, as they are generally known for the production of cosmetic preparations, have proven to be particularly suitable.

Also suitable are non-ionic polymers of the polyethylene glycol mono/dUL fatty acid ester type with a degree of condensation of 2 to 200, preferably 10 to 100.

&bull; . .j /jjj _4< ·

· · I

·

i.

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A typical example is polyethylene glycol-100-bis-stearate, which gives the emulsions an additional pearlescent effect.

The polymers can be used - individually or in combination and based on the emulsion - in amounts of 1 to 5, preferably 2 to 4% by weight. They are introduced into the pre-emulsion as aqueous dispersions, i.e. the main amount of water that is to be contained in the final formulation is introduced together with the polymers. This amount is usually between 15 and 66, preferably 35 to 55% by weight - based on the emulsion.

Ingredients of surfactant phase III

The surfactant phase, which is added to the pre-emulsion formed from phases I and II, is responsible for the cleaning effect of the emulsion. A combination of components c2) and c3) has proven to be particularly advantageous, to which cationic surfactants or polymers (component c4) can be added to structure the foam and small amounts of electrolyte salts (component c5) can be added to adjust the viscosity.

In this context, fatty alcohol sulfates of the formula (V) come into consideration as component el),

R ⁶ O-SC^X (V)

&bull;"a·':

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in which R^ stands for alkyl radicals having 12 to 14 carbon atoms and X stands for an alkali and/or alkaline earth metal, ammonium or alkylammonium.

Typical examples are sulfates of lauryl alcohol, myristyl alcohol, cetyl alcohol, stearyl alcohol, isostearyl alcohol, arachyl alcohol, behenyl alcohol and their technical mixtures, such as those obtained in the high-pressure hydrogenation of methyl ester fractions or aldehydes from Roelen's oxo synthesis. Sulfates of Ci2/14~ or C^/^g coconut fatty alcohol - ^* - are preferably used in the ^form of their sodium and/or magnesium salts.

In this context, fatty alcohol polyglycol ether sulfates of the formula (VI) come into consideration as component c2),

in which R? stands for alkyl radicals having 12 to 14 carbon atoms, ζ stands for numbers from 1 to 10 and X stands for an alkali and/or alkaline earth metal, ammonium or alkylammonium.

Typical examples are sulfates of addition products of an average of 1 to 10, preferably 2 to 7 mol of ethylene oxide with lauryl alcohol, myristyl alcohol, cetyl alcohol, stearyl alcohol, isostearyl alcohol, arachyl alcohol, behenyl alcohol and technical mixtures thereof, such as are obtained, for example, in the high-pressure hydrogenation of methyl ester fractions or aldehydes from Roelen's oxo synthesis. Preferably, sulfates of an addition product of an average of 2 to 4 mol of ethylene oxide with Ci2/14~ or Ci2/i8~ ^Ko ^ ^os ~

·

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fatty alcohol in the form of their sodium and/or magnesium salts. The fatty alcohol polyglycol ether sulfates can have a conventional or a narrow homolog distribution. It should be noted that preferably fatty alcohol polyglycol ether sulfates with a conventional homolog distribution and a low degree of alkoxylation can contain significant amounts of fatty alcohol sulfates due to the manufacturing process.

As component c3), alkyl oligoglycosides of the formula (VII) are also used,

R ⁸ -O-[G]p (VII)

in which R^ is an alkyl radical having 6 to 22 carbon atoms, G is a sugar radical having 5 or 6 carbon atoms and ρ is a number from 1 to 10.

As already mentioned, alkyl oligoglycosides are known substances that can be obtained using the relevant methods of preparative organic chemistry. EP-Al-O 301 298 and WO 90/3977 are representative of the extensive literature. Alkyl oligoglycosides can be derived from aldoses or ketoses with 5 or 6 carbon atoms, preferably glucose. The preferred alkyl oligoglycosides are therefore alkyl oligoglucosides.

The index number ρ in the general formula (VII) indicates the degree of oligomerization (DP degree), ie the distribution of mono- and oligoglycosides and stands for a number between

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1 and 10. While ρ in a given compound must always be an integer and can assume the values ρ = 1 to 6, the value ρ for a specific alkyl oligoglycoside is an analytically determined calculated value, which is usually a fractional number. Preferably, alkyl oligoglycosides with an average degree of oligomerization ρ of 1.1 to 3.0 are used. From an application point of view, alkyl oligoglycosides whose degree of oligomerization is less than 1.7 and in particular between 1.2 and 1.4 are preferred.

The alkyl radical R^ can be derived from primary alcohols with 6 to 11, preferably 8 to 10 carbon atoms. Typical examples are caproic alcohol, caprylic alcohol, capric alcohol and undecyl alcohol as well as technical mixtures thereof, such as those obtained, for example, in the hydrogenation of technical fatty acid methyl esters or in the course of the hydrogenation of aldehydes from Roelen's oxo synthesis. Preference is given to alkyl oligoglucosides with a chain length of Cq-Ciq (DP = 1 to 3), which are obtained as first run in the distillative separation of technical Cg-Cig coconut fatty alcohol and can be contaminated with a proportion of less than 6% by weight of C]_2~ alcohol, as well as alkyl oligoglucosides based on technical Cg/n-oxo alcohols (DP = 1 to 3).

The alkyl radical R^ can also be derived from primary alcohols with 12 to 22, preferably 12 to 16 carbon atoms. Typical examples are lauryl alcohol, myristyl alcohol, cetyl alcohol, stearyl alcohol, isostearyl alcohol, arachyl alcohol, behenyl alcohol, and technical mixtures thereof, which can be obtained as described above. Preferably

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are alkyl oligoglucosides based on hydrogenated Ci2/l6~ ^coconut alcohol with a DP of 1 to 3.

Cationic surfactants or polymers (component c4) are suitable for foam structuring.

In this context, cationic surfactants are understood to mean quaternary ammonium compounds, such as N(2-hydroxyhexadecyl-)N,N-dimethyl-N-2-hydroxyethylammonium chloride (Dehyquart( ^R ) E, sales product Henkel KGaA, Düsseldorf/FRG) or esterquats, such as methylquaternized triethanolamine mono/distearate dimethyl sulfate salt (Dehyquart( ^R ) AU 36, sales product Pulcra SA, Barcelona/ES).

Cationic polymers include, for example, cationic cellulose derivatives, cationic starch derivatives, copolymers of diallyl QACs with acrylamides, quaternized polyvinylpyrrolidone derivatives, quaternized vinylpyrrolidone-vinylimidazole polymers (Luviquats, BASF AG, Ludwigshafen/FRG), polyglycolamine condensates, quaternized collagen polypeptides, polyethyleneimines, cationic silicone polymers (amodimethicones), copolymers of adipic acid with dimethylaminohydroxypropyldiethylenetriamine (Cartaretine), polyaminopolyamides, cationic chitin derivatives, quaternized ammonium salt polymers (Mirapole) and in particular cationic guar gum (Cosmedia Guar).

Electrolyte salts (component c5) are used to adjust the viscosity, and chlorides of alkali and/or alkaline earth metals

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come into consideration. Sodium chloride and/or magnesium chloride are usually used.

The proportion of the ingredients of the surfactant phase in the total emulsion can have the following limits:

el) 0 to 10/ preferably 1 to 5 wt.%

c2) 15 to 30, preferably 20 to 25 wt.%;

c3) 15 to 30, preferably 15 to 20 wt.%;

c4) 0.1 to 10, preferably 0.1 to 5 wt.%

c5) 0.1 to 3, preferably 1 to 2 wt.%.

It follows from this that the proportion of the surfactant phase in the emulsions according to the invention can be 30 to 83 and preferably 37 to 57% by weight - based on the emulsion. The surfactants are usually used in the form of more or less concentrated aqueous pastes or solutions, so that with the surfactant phase a further - albeit smaller - amount of water can be introduced into the emulsions according to the invention.

Preparation of emulsions

A simple stirring apparatus is sufficient to produce the emulsions. Surprisingly, the usual technique, in which homogenization takes place under strong shear stress, for example in an Ultra-Turrax or a colloid mill, is not required, although it can of course be carried out in such a component.

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It has proven optimal to first heat the oil and aqueous polymer phases to 70 to 90, preferably 75 to 80 ^° C and then mix them at this temperature to form a pre-emulsion. The cold surfactant phase, ie at ambient temperature, can then be stirred into this pre-emulsion at 50 to 70, preferably 60 to 65°C.

The formation of an emulsion is a mechanical or physical process; a chemical reaction does not take place.

Commercial applicability

The foaming emulsions according to the invention have both a cleansing and caring character and are particularly suitable for applications in the cosmetics sector.

Another object of the invention relates to shower gels based on foaming emulsions containing

A) oily substances selected from the group consisting of fatty alcohol polyglycol ethers, Guerbet alcohols, fatty acid esters, polyol partial esters, dialkyl ethers and paraffin hydrocarbons,

B) anionic and/or non-ionic polymers,

C) fatty alcohol sulfates and/or fatty alcohol polyglycol ether sulfates,

D) Alkyl oligoglycosides,

E) cationic surfactants or polymers,

H0578

- 18 -

F) Electrolyte salts and

G) Water

and, if applicable, other usual auxiliary substances and additives.

Finally, a further object of the invention relates to the use of the foaming emulsions according to the invention for the production of hair and body care products in which they can be contained in amounts of 1 to 100 _% , preferably 50 to 95% by weight, based on the product.

The following examples are intended to illustrate the subject matter of the invention in more detail without limiting it thereto.

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Examples Ingredients used

&ogr; Eumulgin( ^R ) B2

Cetylstearyl alcohol with approx. 20 mol ethylene oxide

&ogr; Eutanol( ^R ) G

2-Octyldodecanol

&ogr; Laraecreme( ^R ) DGE

01igoglycerin-2EO-tetrastearate

&ogr; Lytron{ ^R ) 631

anionic polystyrene dispersion

ø Texapon( ^R ) N70

~Coconut fatty alcohol-2EO-salfat-sodium salt

&ogr; Dehyton( ^R ) G Hydroxyethyl N-cocosamidoethyl carboxymethylglycinate sodium salt

&ogr; Plantar( ^R ) 1200

C 12/ 14-alkyl oligoglucoside

- 20 -

II. Recipe examples

Example 1:

Phase I

Phase II

Phase III

2Og(1 wt.%) Eumulgin( ^R ) B2

60 g (3 wt.%) Eutanol( ^R ) G

80 g (4% by weight) Lamecreme( ^R ) DGE 18

40 g (2 wt.%) Lytron( ^R ) 631

980 g (49% by weight) water

440 g (22 wt.%) Texapon( ^R ) N70

320 g (16 wt.%) Plantaren( ^R ) APG 1200

2Og(1 wt.%) sodium chloride

40 g (2 wt.%) water

In a 3-liter stirring apparatus, 160 g of phase I were processed at 70°C with 1020 g of phase II to form a pre-emulsion. Then 820 g of phase (III) were stirred in cold at 60 ^° C. An easily flowable, finely divided, smooth emulsion with creamy foaming power was obtained, which was quickly absorbed onto the skin.

&diams; ·

- 21 -

Comparison example Vlt

Phase I : 20 g ( 1 wt. %) Eumulgin( ^R ) B2 60 g ( 3 wt. %) Eutanol( ^R ) G 80 g ( 4 wt. %) Lamecreme( ^R ) DGE 18

Phase II : 40 g (2 wt.%) Lytron( ^R ) 631 7 20 g (36 wt.%) water

Phase III : 540 g (27 wt.%) Texapon( ^R ) N70 320 g (16 wt.%) Dehyton( ^R ) G

2Og(1 wt.%) sodium chloride 200 g (10 wt.%) water

Analogous to Example 1, 160 g of phase I were processed at 80 ^° C with stirring with 760 g of phase II to form a pre-emulsion. Then 1080 g of phase (III) were stirred in cold at 60 ^° C. An emulsion was obtained which, compared to Example 1, had disadvantageous gel-like flow properties and a lower foaming capacity. The emulsion was also difficult to spread on the skin.

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Comparison, example V2;

Phase I : 2Og (1 wt. %) Eumulgin( ^R ) B2 60 g ( 3 wt. %) Eutanol( ^R ) G 80 g ( 4 wt. %) Lamecreme( ^R ) DGE 18

Phase II : 40 g (2 wt.%) Lytron( ^R ) 631 980 g (49 wt.%) water

Phase III : 440 g (22 wt.%) Texapon( ^R ) N70 320 g (16 wt.%) Dehyton( ^R ) G 2Og(1 wt.%) sodium chloride 40 g (2 wt.%) water

In a 3-liter stirring apparatus, 160 g of phase I were processed at 80°C while stirring with 1020 g of phase II to form a pre-emulsion. Then 820 g of phase III were stirred in cold at 60~°C. An emulsion was obtained which, compared with example 1, had disadvantageous gel-like flow properties and a lower foaming capacity. Analogously to VI, the emulsion was difficult to spread on the skin.

Claims (3)

H 0578 - 23 - Patent claims 1. Foaming emulsions containing A) Oily substances selected from the group consisting of fatty alcohol polyglycol ethers, Guerbet alcohols, fatty acid esters, polyol partial esters, dialkyl ethers and paraffin hydrocarbons, B) anionic and/or non-ionic polymers, C) fatty alcohol sulphates and/or fatty alcohol polyglycol ether sulphates, D) Alkyl oligoglycosides, E) cationic surfactants or polymers, F) Electrolyte salts and G) Water.
» 2. Foaming emulsions according to claim 1, characterized in that they 1 to 5 wt.% fatty alcohol polyglycol ethers, 1 to 5 wt.% Guerbet alcohols, 1 to 5 wt.% polyol partial esters, 1 to 5 wt.% anionic polymers, 15 to 30 wt.% fatty alcohol polyglycol ether sulfates, 15 to 30 wt.% alkyl oligoglycosides, 0.1 to 10 wt.% cationic surfactants or polymers, 0.1 to 3 wt.% electrolyte salts and ad 100 wt.% water contain. H0578 - 24 - 3. Shower gels based on foaming emulsions, containing A) oily substances selected from the group consisting of fatty alcohol polyglycol ethers, Guerbet alcohols, fatty acid esters, polyol partial esters, dialkyl ethers and paraffin hydrocarbons, B) anionic and/or non-ionic polymers, C) fatty alcohol sulfates and/or fatty alcohol polyglycol ether sulfates, D) Alkyl oligoglycosides, E) cationic surfactants and/or cationic polymers, F) Electrolyte salts and G) Water and, if necessary, other usual auxiliary substances and additives.