DE19846429A1 - Solid soap having good foaming and skin feel properties, containing alk(en)yl oligoglycosides, fatty acid salts, olefin sulfonates and optionally fatty acids - Google Patents

Abstract

A solid soap comprises (by weight, to a total of 100%) (a) 1-20% alkyl and/or alkenyl oligoglycosides, (b) 10-35% fatty acid salts, (c) 10-40% olefin sulfonates, (d) 0-10% fatty acids, (e) 0-40% water-soluble structuring agents and optionally (f) water and further auxiliaries and additives.

Description

Field of the Invention

The invention relates to bar soaps with defined contents of alkyl and / or alkenyl oligoglycosides, Fatty acid salts and olefin sulfonates and optionally fatty acids and water-soluble structure ten.

State of the art

Alkyl oligoglucosides are known nonionic surfactants that are suitable for a large number of applications suitable, in which at the same time high foaming and cleaning ability and skin feel be desired. In addition to dishwashing detergents and hair shampoos, these surfactants also come in particular for the production of bar soaps.

Bar soaps containing fatty acid are known from European patent EP 0463912 B1 (Colgate) Resalt, fatty acids and anionic surfactants and up to 20 wt .-% alkyl oligoglucosides contain. Out German patent applications DE 43 31 297 A1, DE 43 37 031 A1 and DE 197 03 745 A1 (Henkel) are bar soaps with a low content of alkyl oligoglucosides and other anionic surfactants known. The documents EP 0203750 B1, EP 0227321 A2, EP 0307189 B1 and EP 0308190 A2 (Procter & Gamble) disclose toilet soaps containing cationic polymers and mild Surfactants such as alkyl oligoglucosides. Subject of the European patent EP 0557423 B1 (Procter & Gamble) are bar soaps with alkyl polyglucosides and silicones. From the Patent US 5643091 (Colgate) is a process for producing alkyl glucoside-containing pieces known soaps. Further bar soaps are described in Japanese patent application JP 911041198 A (Kao) revealed.

However, the prior art alkyl glucoside bar soaps have several disadvantages on: Either they do not develop sufficient or sufficiently stable foam or the Foam is large-pored and does not convey a sufficient feeling of skin moisture when used.  In addition, a whole series of bar soaps containing glucoside show the tendency to crack and Water absorption as well as poor deformability and stability.

Accordingly, the complex object of the invention has been to provide bar soaps with a content to provide alkyl oligoglycosides that are superior to those of the prior art have the complex properties described above.

Description of the invention

The invention relates to bar soaps containing

• a) 1 to 20, preferably 5 to 15% by weight of alkyl and / or alkenyl oligoglycosides,
• b) 10 to 35, preferably 5 to 30% by weight of fatty acid salts,
• c) 10 to 40, preferably 5 to 30% by weight of olefin sulfonates,
• d) 0 to 10, preferably 2 to 8 wt .-% fatty acids and
• e) 0 to 40, preferably 2 to 30% by weight of water-soluble structuring agents,

with the proviso that the amounts indicated may be with water and other usual Add additives and additives to 100% by weight.

Surprisingly, it was found that the bar soaps according to the invention are not only one result in a particularly stable and creamy foam, but also through an optimized skin feel put. Further advantages are the reduced crack formation when drying, the increased stability at the Air, the reduced tendency to absorb water and the good ductility.

Alkyl and / or alkenyl oligoglkyosides

Alkyl and alkenyl oligoglycosides which are suitable as component (a) are known nonionic surfactants which follow the formula (I),

R ¹ O- [G] _p (I)

in which R ^{1 is} an alkyl and / or alkenyl radical having 4 to 22 carbon atoms, G is a sugar radical having 5 or 6 carbon atoms and p is a number from 1 to 10. They can be obtained by the relevant methods of preparative organic chemistry, for example by acid-catalyzed acetalization of glucose with fatty alcohols.

The alkyl and / or alkenyl oligoglycosides can differ from aldoses or ketoses with 5 or 6 carbons derived atoms, preferably glucose. The preferred alkyl and / or alkenyl oligoglycosides are thus alkyl and / or alkenyl oligoglucosides. The index number p in the general formula (I) gives the degree of oligomerization (DP), d. H. the distribution of mono- and oligoglycosides and stands for a number between 1 and 10. While p must always be an integer in a given connection and here above all can assume the values p = 1 to 6, is the value p for a particular alkylol goglycoside is an analytically calculated value that usually represents a fraction of the number. Alkyl and / or alkenyl oligoglycosides with an average degree of oligomerization are preferred p used from 1.1 to 3.0. From an application point of view, such alkyl and / or alkenyl oligoglycosides preferred, the degree of oligomerization is less than 1.7 and in particular between 1.2 and 1.4.

The alkyl or alkenyl radical R ¹ can be derived from primary alcohols having 4 to 11, preferably 8 to 10, carbon atoms. Typical examples are butanol, capro alcohol, caprylic alcohol, capric alcohol and undecyl alcohol and their technical mixtures, such as are obtained, for example, in the hydrogenation of technical fatty acid methyl esters or in the course of the hydrogenation of aldehydes from Roelen's oxosynthesis. Alkyl oligoglucosides of chain length C ₈ -C ₁₀ (DP = 1 to 3) are preferred, which are obtained as a preliminary step in the distillative separation of technical C ₈ -C ₁₈ coconut oil alcohol and with a proportion of less than 6% by weight of C ₁₂ -Alcohol can be contaminated and alkyl oligoglucosides based on technical C _9/11 oxo alcohols (DP = 1 to 3). The alkyl or Alke nylrest R ¹ can also be derived from primary alcohols with 12 to 22, preferably 12 to 14 carbon atoms. Typical examples are lauryl alcohol, myristyl alcohol, cetyl alcohol, palmoleyl alcohol, stearyl alcohol, isostearyl alcohol, oleyl alcohol, elaidyl alcohol, petroselinyl alcohol, arachyl alcohol, gadoleyl alcohol, behenyl alcohol, erucyl alcohol, brassidyl alcohol and their technical mixtures, which can be obtained as described above, and their technical mixtures. Alkyl oligoglucosides based on hardened C _12/14 coconut alcohol with a DP of 1 to 3 are preferred.

Fatty acid salts

Fatty acid salts which form component (b) are to be understood as meaning soaps of the formula (II)

R ² CO-OX (II)

in the R ² CO for an aliphatic, linear or branched acyl radical having 6 to 22, preferably 12 to 18 carbon atoms and 0 and / or 1, 2 or 3 double bonds and X for an alkali and / or alkaline earth metal, ammonium, alkylammonium, alkanolammonium and / or glucammonium. Typical examples are the sodium, potassium or magnesium salts of caproic acid, caprylic acid, 2-ethylhexanoic acid, capric acid, lauric acid, isotridecanoic acid, myristic acid, palmitic acid, palmoleic acid, stearic acid, isostearic acid, oleic acid, elaidic acid, petroselinic acid, linoleic acid, linoleic acid, linoleic acid, linoleic acid, linoleic acid, linoleic acid, linoleic acid, linoleic acid, linoleic acid, linoleic acid, linoleic acid, linoleic acid, linoleic acid, linoleic acid, Arachic acid, gadoleic acid, behenic acid and erucic acid and their technical mixtures, the z. B. in the pressure splitting of natural fats and oils, in the reduction of aldehydes from Roelen's oxosynthesis or the dimerization of unsaturated fatty acids. Alkali salts of technical fatty acids with 12 to 18 carbon atoms are preferred, such as the sodium salts of coconut, palm, palm kernel or tallow fatty acid.

Olefin sulfonates

The bar soaps according to the invention contain, as a further constituent, olefin sulfonates which are usually obtained by addition of SO ₃ onto olefins of the formula (III),

R ³ -CH = CH-R ⁴ (III)

wherein R ³ and R ⁴ independently of one another represent H or alkyl radicals having 1 to 20 carbon atoms, with the proviso that R ³ and R ⁴ together have at least 6 and preferably 10 to 16 carbon atoms. With regard to production and use, reference is made to the review article J. Am. Oil. Chem. Soc. 55, 70 (1978).

Internal olefin sulfonates, but preferably α-olefin sulfonates, can be used which result when R ³ or R ^{4 are} hydrogen. Typical examples of olefin sulfonates used are the sulfonation products which are obtained by treating SO ₃ with 1-, 2-butene, 1-, 2-, 3-hexene, 1-, 2-, 3-, 4-octene, 1- , 2-, 3-, 4-, 5-decene, 1-, 2-, 3-, 4-, 5-, 6- dodecene, 1-, 2-, 3-, 4-, 5-, 6- , 7-tetradecene, 1-, 2-, 3-, 4-, 5-, 6-, 7-, 8-hexadecene, 1-, 2-, 3-, 4-, 5-, 6-, 7- , 8-, 9-octadecene, 1-, 2-, 3-, 4-, 5-, 6-, 7-, 8-, 9-, 10-eicosen and 1-, 2-, 3-, 4- , 5-, 6-, 7-, 8-, 9-, 10- and 11-docosen. After sulfonation has been carried out, neutralization is carried out, after which the olefin sulfonate is present in the mixture as alkali metal, alkaline earth metal, ammonium, alkylammonium, alkanolammonium, glucammonium, preferably sodium salt. Both olefin sulfonates in aqueous paste, preferably at a pH of 7 to 10, and also as anhydrous products, preferably as granules, can be used, as can be obtained by conventional spray drying, drying in a thin layer ("flash dryer") DE 197 10 152 C1 (Henkel) or in a fluidized bed dryer ("sket system").

Fatty acids

Fatty acids of component (d) are to be understood as aliphatic carboxylic acids of the formula (IV)

R ⁵ CO-OH (IV)

in which R ⁵ CO represents an aliphatic, linear or branched acyl radical having 6 to 22, preferably 12 to 18 carbon atoms and 0 and / or 1, 2 or 3 double bonds. Typical examples 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, and technical mixtures, e.g. B. in the pressure splitting of natural fats and oils, in the reduction of aldehydes from Roelen's oxosynthesis or the dimerization of unsaturated fatty acids. Technical fatty acids with 12 to 18 carbon atoms are preferred, such as coconut, palm, palm kernel or tallow fatty acid.

Other auxiliaries and additives

The bar soaps can contain water-soluble structuring agents, such as starch, as builders. preferably have wheat or corn starch. As a builder you can also use fine water Contain insoluble alkali aluminum silicates, using synthetic, bonded Water-containing crystalline sodium aluminosilicates, and in particular zeolite A in particular which is preferred; Zeolite NaX and its mixtures with zeolite NaA can also be used become. Suitable zeolites have a calcium binding capacity in the range from 100 to 200 mg CaO / g. NTA and / or EDTA can also be used as liquid builders. As plasticizers (Plasticiser) come fatty alcohols, fatty acid partial glycerides or wax esters with 12 to 22 each Carbon atoms in the fat residues in question.

These bar soaps can also be used as further auxiliaries and additives, such as surfactants, oil bodies, emulsifiers, Superfatting agents, consistency enhancers, thickening agents, polymers, silicone compounds, fats, Waxes, stabilizers, biogenic agents, deodorant agents, swelling agents, pigments, antioxidants, con contain preservatives, hydrotropes, perfume oils, dyes and the like.

Typical examples of suitable mild, i.e. H. Surfactants that are particularly compatible with the skin are fatty alcohol poly glycol ether sulfates, monoglyceride sulfates, mono- and / or dialkyl sulfosuccinates, fatty acid isethionates, Fatty acid sarcosinates, fatty acid taurides, fatty acid glutamates, ether carboxylic acids, alkyl oligoglucosides,  Fatty acid glucamides, alkylamido betaines and / or protein fatty acid condensates, the latter preferably based on wheat proteins.

Guerbet alcohols based on fatty alcohols with 6 to 18, preferably 8 to 10 carbon atoms, esters of linear C ₆ -C ₂₂ fatty acids with linear C ₆ -C ₂₂ fatty alcohols, esters of branched C ₆ -C ₁₃ -Carboxylic acids with linear C ₆ -C ₂₂ fatty alcohols, esters of linear C ₆ -C ₂₂ fatty acids with branched alcohols, especially 2-ethylhexanol, esters of hydroxy carboxylic acids with linear or branched C ₆ -C ₂₂ fatty alcohols, especially dioctyl malates , Esters of linear and / or branched fatty acids with polyhydric alcohols (such as propylene glycol, dimer diol or trimer triol) and / or Guerbet alcohols, triglycerides based on C ₆ -C ₁₀ fatty acids, liquid mono- / di-ITriglyceride mixtures based of C ₆ -C ₁₈ fatty acids, esters of C ₆ -C ₂₂ fatty alcohols and / or Guerbet alcohols with aromatic carboxylic acids, especially benzoic acid, esters of C ₂ -C ₁₂ dicarboxylic acids with linear or branched alk ohol with 1 to 22 carbon atoms or polyols with 2 to 10 carbon atoms and 2 to 6 hydroxyl groups, vegetable oils, branched primary alcohols, substituted cyclohexanes, linear and branched C ₆ -C ₂₂ fatty alcohol carbonates, Guerbet carbonates, esters of benzoic acid with linear and / or branched C ₆ -C ₂₂ alcohols (e.g. B. Finsolv® TN), linear or branched, symmetrical or asymmetrical dialkyl ethers having 6 to 22 carbon atoms per alkyl group, ring opening products of epoxidized fatty acid esters with polyols, silicone oils and / or aliphatic or naphthenic hydrocarbons.

Examples of suitable emulsifiers are nonionic surfactants from at least one of the following groups:

• 1. Addition products of 2 to 30 moles of ethylene oxide and / or 0 to 5 moles of propylene oxide to linear Fatty alcohols with 8 to 22 carbon atoms, on fatty acids with 12 to 22 carbon atoms and on alkylphenols with 8 to 15 carbon atoms in the alkyl group;
• 2. C _12/18 fatty acid _monoesters and diesters of adducts of 1 to 30 moles of ethylene oxide with glycerol;
• 3. Glycerol mono- and diesters and sorbitan mono- and diesters of saturated and unsaturated Fatty acids with 6 to 22 carbon atoms and their ethylene oxide addition products;
• 4. Alkyl mono- and oligoglycosides with 8 to 22 carbon atoms in the alkyl radical and their ethoxy analogs;
• 5. Addition products of 15 to 60 moles of ethylene oxide with castor oil and / or hardened castor oil;
• 6. Polyol and especially polyglycerol esters, such as. B. polyglycerol polyricinoleate, polyglycerol poly 12-hydroxystearate or polyglycerol dimerostearate. Mixtures of Compounds from several of these classes of substances;
• 7. Addition products of 2 to 15 moles of ethylene oxide with castor oil and / or hardened castor oil;  
• 8. partial esters based on linear, branched, unsaturated or saturated C _6/22 fatty acids, ricinoleic acid and 12-hydroxystearic acid and glycerol, polyglycerol, pentaerythritol, Dipentae rythrit, (eg., Sorbitol), sugar alcohols, alkyl glucosides (z. B. Methyl glucoside, butyl glucoside, lauryl glu coside) and polyglucosides (e.g. cellulose);
• 9. mono-, di- and trialkyl phosphates and mono-, di- and / or tri-PEG-alkyl phosphates and their Salts;
• 10. wool wax alcohols;
• 11. Polysiloxane-polyalkyl-polyether copolymers or corresponding derivatives;
• 12. Mixed esters of pentaerythritol, fatty acids, citric acid and fatty alcohol according to DE 11 65 574 PS and / or mixed esters of fatty acids with 6 to 22 carbon atoms, methylglucose and polyo len, preferably glycerin or polyglycerin and
• 13. Polyalkylene glycols.

The adducts of ethylene oxide and / or of propylene oxide with fatty alcohols, fatty acids, alkylphenols, glycerol mono- and diesters as well as sorbitan mono- and diesters of fatty acids or with castor oil are known, commercially available products. These are homologous mixtures of which average degree of alkoxylation corresponds to the ratio of the amounts of ethylene oxide and / or propylene oxide and substrate with which the addition reaction is carried out. C _12/18 fatty acid _monoesters and diesters of adducts of ethylene oxide with glycerol are known from DE 20 24 051 PS as refatting agents for cosmetic preparations.

C _8/18 alkyl mono- and oligoglycosides, their preparation and their use are known from the prior art. They are produced in particular by reacting glucose or oligosaccharides with primary alcohols with 8 to 18 carbon atoms. Regarding the glycoside residue, both monoglycosides in which a cyclic sugar residue is glycosidically bonded to the fatty alcohol and oligomeric glycosides with a degree of oligomerization of up to about 8 are suitable. The degree of oligomerization is a statistical mean value which is based on a homolog distribution customary for such technical products.

Zwitterionic surfactants can also be used as emulsifiers. Zwitterionic ten-side means those surface-active compounds which carry at least one quaternary ammonium group and at least one carboxylate and one sulfonate group in the molecule. Particularly suitable zwitterionic surfactants are the so-called betaines such as the N-alkyl-N, N-dimethylam monium glycinate, for example the cocoalkyldimethylammonium glycinate, N-acylaminopropyl-N, N-dimethylammonium glycinate, for example the cocoacylaminopropyldimethylammonium glycinate, and 2-alkyl-3-carboxyl -hydroxyethylimidazolines each having 8 to 18 carbon atoms in the alkyl or acyl group and the cocoacylaminoethylhydroxyethylcarboxymethylglycinate. The fatty acid amide derivative known under the CTFA name of Cocamidopropyl Betaine is particularly preferred. Suitable emulsifiers are also ampholytic surfactants. Ampholytic surfactants are surface-active compounds which, in addition to a C _8/18 alkyl or acyl group, contain at least one free amino group and at least one -COOH or -SO ₃ H group in the molecule and are capable of forming internal salts are. Examples of suitable ampholytic surfactants are N-alkylglycine, N-alkylpropionic acid, N-alkylaminobutyric acid, N-alkyliminodipropionic acid, N-hydroxyethyl-N-alkylamidopropylglycine, N-alkyltaurine, N-alkyl sarcosine, 2-alkylaminopropionic acid and alkylaminoacetic acid each with about 8 to 18 C atoms in the alkyl group. Particularly preferred ampholytic surfactants are N-coconut alkylaminopropionate, coconut acylaminoethylaminopropionate and C _12/18 acyl sarcosine. In addition to the ampholytic emulsifiers, quaternary emulsifiers are also suitable, those of the esterquat type, preferably methylquaternized difatty acid triethanolamine ester salts, being particularly preferred.

Substances such as lanolin and lecithin and polyethoxy can be used as superfatting agents gelled or acylated lanolin and lecithin derivatives, polyol fatty acid esters, monoglycerides and fatty acids realkanolamides are used, the latter also serving as foam stabilizers.

The main consistency agents are fatty alcohols or hydroxy fatty alcohols with 12 to 22 and preferably 16 to 18 carbon atoms and in addition partial glycerides, fatty acids or hydroxy fat acids into consideration. A combination of these substances with alkyl oligoglucosides and / or is preferred Fatty acid N-methylglucamides of the same chain length and / or polyglycerol poly-12-hydroxystearates. Suitable thickeners are, for example, polysaccharides, in particular xanthan gum, guar Guar, agar-agar, alginates and tyloses, carboxymethyl cellulose and hydroxyethyl cellulose, furthermore hermolecular polyethylene glycol mono- and diesters of fatty acids, polyacrylates, (e.g. Carbopole® from Goodrich or Synthalene® from Sigma), polyacrylamides, polyvinyl alcohol and polyvinylpyrrolidone, Surfactants such as ethoxylated fatty acid glycerides, esters of fatty acids with polyols as in for example pentaerythritol or trimethylolpropane, fatty alcohol ethoxylates with restricted homologues distribution or alkyl oligoglucosides as well as electrolytes such as table salt and ammonium chloride.

Suitable cationic polymers are, for example, cationic cellulose derivatives, such as. Legs quaternized hydroxyethyl cellulose obtained from Amerchol under the name Polymer JR 400® Lich, cationic starch, copolymers of diallylammonium salts and acrylamides, quaternized Vinyl pyrrolidone / vinyl imidazole polymers, such as. B. Luviquat® (BASF), condensation products from Poly glycols and amines, quaternized collagen polypeptides such as lauryldimonium hydroxy propyl hydrolyzed collagen (Lamequat®L / Grünau), quaternized wheat polypeptides, polyethyleneimine, cationic silicone polymers, such as. B. amidomethicones, copolymers of adipic acid and dimethyla minohydroxypropyldiethylenetriamine (Cartaretine® / Sandoz), copolymers of acrylic acid with dimethyl diallylammonium chloride (Merquat® 550 / Chemviron), polyaminopolyamides, e.g. B. described in the FR 2252840 A and its crosslinked water-soluble polymers, cationic chitin derivatives as in  for example, quaternized chitosan, optionally microcrystalline, condensation products Dihaloalkylene, such as. B. dibromobutane with bisdialkylamines, such as. B. bis-dimethylamino-1,3-propane, cationic guar gum, such as B. Jaguar® CBS, Jaguar® C-17, Jaguar® C-16 from Celanese, quaternized ammonium salt polymers, such as. B. Mirapol® A-15, Mirapol® AD-1, Mirapol® AZ-1 der Miranol company.

Examples of anionic, zwitterionic, amphoteric and nonionic polymers are Vinyl acetate / crotonic acid copolymers, vinyl pyrrolidone / vinyl acrylate copolymers, vinyl acetate / butyl maleate / iso bornyl acrylate copolymers, methyl vinyl ether / maleic anhydride copolymers and their esters, un cross-linked and cross-linked with polyols, acrylic acids, acrylamidopropyltrimethylammonium chloride / Acry lat copolymers, octylacrylamide / methyl methacrylate / tert-butylaminoethyl methacrylate / 2-hydroxypro pyl methacrylate copolymers, polyvinyl pyrrolidone, vinyl pyrrolidone / vinyl acetate copolymers, vinyl pyrrole don / dimethylaminoethyl methacrylate / vinyl caprolactam terpolymers and, if appropriate, derivatized Cellulose ethers and silicones in question.

Suitable silicone compounds are, for example, dimethylpolysiloxanes, methylphenylpolysiloxanes, cyclic silicones as well as amino, fatty acid, alcohol, polyether, epoxy, fluorine, glycoside and / or alkyl modified silicone compounds that are both liquid and resinous at room temperature can lie. Todd also provides a detailed overview of suitable volatile silicones et al. in cosm. Toil. 91, 27 (1976).

Typical examples of fats are glycerides. a. Beeswax, carnauba wax, Candelilla wax, montan wax, paraffin wax, hydrogenated castor oils, fat that is solid at room temperature acid esters or microwaxes, optionally in combination with hydrophilic waxes, e.g. B. Cetyl stearyl alcohol or partial glycerides in question. Metal salts of fatty acids, such as B. magnesium, aluminum and / or zinc stearate or ricinoleate can be used.

Examples of biogenic active ingredients are tocopherol, tocopherol acetate, tocopherol palmitate, Ascorbic acid, deoxyribonucleic acid, retinol, bisabolol, allantoin, phytantriol, panthenol, AHA acid ren, amino acids, ceramides, pseudoceramides, essential oils, plant extracts and vitamin complexes to understand.

As deodorants come e.g. B. antiperspirants such as aluminum chlorohydates in question. These are colorless, hygroscopic crystals that easily melt in the air and occur when vaping aqueous aluminum chloride solutions. Aluminum chlorohydrate is used to manufacture antiperspirant and deodorant preparations and is likely to act by partially occluding the sweat glands through protein and / or polysaccharide precipitation [cf. J. Soc. Cosm. Chem. 24, 281 (1973)]. For example, there is an aluminum chlorohydrate commercially available under the Locron® brand from Hoechst AG, Frankfurt / FRG, which corresponds to the formula [Al ₂ (OH) ₅ Cl] .2.5 H ₂ O and whose use is particularly preferred [cf. . J. Pharm. Pharmacol. 26, 531 (1975)]. In addition to the chlorohydrates, aluminum hydroxyl actates and acidic aluminum / zirconium salts can also be used. Esterase inhibitors can be added as further deodorant active ingredients. These are preferably trialkyl citrates such as trimethyl citrate, tripropyl citrate, triisopropyl citrate, tributyl citrate and in particular triethyl citrate (Hydagen® CAT, Henkel KGaA, Düsseldorf / FRG). The substances inhibit enzyme activity and thereby reduce odor. The cleavage of the citric acid ester probably releases the free acid, which lowers the pH value on the skin to such an extent that the enzymes are inhibited. Other substances which are suitable esterase inhibitors are dicarboxylic acids and their esters, such as glutaric acid, glutaric monoethyl, adipic acid, adipic acid, adipic acid monoethyl ester, Adipinsäurediethy lester, malonic acid and diethyl malonate, hydroxycarboxylic acids and their esters such example, citric acid, malic acid, tartaric acid or tartaric acid diethyl ester . Antibacterial agents that influence the bacterial flora and kill sweat-decomposing bacteria or inhibit their growth can also be contained in the stick preparations. Examples include chitosan, phenoxyethanol and chlorhexidine gluconate. 5-Chloro-2- (2,4-dichlorophen-oxy) phenol, which is sold under the Irgasan® brand by Ciba-Geigy, Basel / CH, has also proven to be particularly effective.

Hydrotropes such as ethanol, isopropyl alcohol or polyols can also be used to improve processability. Polyols that come into consideration preferably have 2 to 15 carbon atoms and at least two hydroxyl groups. Typical examples are

• - glycerin;
• Alkylene glycols, such as, for example, ethylene glycol, diethylene glycol, propylene glycol, butylene glycol, Hexylene glycol and polyethylene glycols with an average molecular weight of 100 to 1,000 daltons;
• - Technical oligoglycerol mixtures with a degree of self-condensation of 1.5 to 10 such as tech niche diglycerin mixtures with a diglycerol content of 40 to 50% by weight;
• Methyl compounds, such as in particular trimethylolethane, trimethylolpropane, trimethylolbutane, Pentaerythritol and dipentaerythritol;
• - Lower alkyl glucosides, especially those with 1 to 8 carbons in the alkyl radical, such as wise methyl and butyl glucoside;
• Sugar alcohols with 5 to 12 carbon atoms, such as sorbitol or mannitol,
• - Sugar with 5 to 12 carbon atoms, such as glucose or sucrose;
• - aminosugars, such as glucamine.

Suitable preservatives are, for example, phenoxyethanol, formaldehyde solution, para benzene, pentanediol or sorbic acid as well as those in Appendix 6, Parts A and B of the Cosmetics Ordinance led further substance classes. Finely dispersed metal oxides or salts are suitable as pigments. Examples of suitable metal oxides are, in particular, zinc oxide and titanium dioxide and, in addition, oxides of iron, zirconium, silicon, manganese, aluminum and cerium as well as their mixtures. As salts Silicates (talc), barium sulfate or zinc stearate can be used.

Perfume oils include mixtures of natural and synthetic fragrances. Natural Fragrance substances are extracts of flowers (lily, lavender, rose, jasmine, neroli, ylang-ylang), stems and leaves (geranium, patchouli, petitgrain), fruits (anise, coriander, caraway, juniper), fruit peel (bergamot, lemon, oranges), roots (mace, angelica, celery, cardamom, costus, iris, Calmus), woods (pine, sandal, guaiac, cedar, rosewood), herbs and grasses (tarragon, Lemongrass, sage, thyme), needles and twigs (spruce, fir, pine, mountain pine), resins and bal seeds (galbanum, elemi, benzoin, myrrh, olibanum, opoponax). Furthermore animal raw come substances in question, such as civet and castoreum. Typical synthetic fragrance compounds gen are products of the ester, ether, aldehyde, ketone, alcohol and hydrocarbon type. Fragrance compounds of the ester type are e.g. B. benzyl acetate, phenoxyethyl isobutyrate, p-tert-Bu tylcyclohexyl acetate, linalyl acetate, dimethylbenzylcarbinylacetate, phenylethyl acetate, linalyl benzoate, Benzyl formate, ethyl methylphenyl glycinate, allyl cyclohexyl propionate, styrallyl propionate and benzylsa licylate. The ethers include, for example, benzyl ethyl ether, the aldehydes z. B. the linear Alka nals with 8 to 18 carbon atoms, citral, citronellal, citronellyloxyacetaldehyde, cyclamenaldehyde, Hydroxycitronellal, Lilial and Bourgeonal, to the ketones z. B. the Jonone, ∝-isomethylionon and Me thylcedryl ketone, to the alcohols anethole, citronellol, eugenol, isoeugenol, geraniol, linalool, pheny ethyl alcohol and terpineol, the hydrocarbons mainly include terpenes and bal same. However, preference is given to using mixtures of different fragrances that work together generate an appealing fragrance. Also essential oils of lower volatility, mostly as an aro Mac components are used as perfume oils, e.g. B. sage oil, chamomile oil, clove oil, Lemon balm oil, mint oil, cinnamon leaf oil, linden blossom oil, juniper berry oil, vetiver oil, oliban oil, galbanu mole, labolanum oil and lavandin oil. Bergamot oil, dihydromyrcenol, lilial, lyral, Citronellol, phenylethyl alcohol, α-hexyl cinnamaldehyde, geraniol, benzylacetone, cyclamenaldehyde, Lina lool, boisambrene forte, ambroxan, indole, hedione, sandelice, lemon oil, mandarin oil, orange oil, Allylamyl glycolate, cyclover valley, lavandin oil, muscatel sage oil, β-damascone, geranium oil bourbon, Cyclohexyl salicylate, Vertoffx Coeur, Iso-E-Super, Fixolide NP, Evemyl, Iraldein gamma, phenylacetic acid acid, geranyl acetate, benzyl acetate, rose oxide, romilllate, irotyl and floramate alone or in mixtures gene, used.

As dyes, the substances suitable and approved for cosmetic purposes can be used be used, such as the dye in the publication "Cosmetic Colorants"  Commission of the German Research Foundation, Verlag Chemie, Weinheim, 1984, pp. 81-106 are put together. These dyes are usually used in concentrations of 0.001 to 0.1% by weight, based on the entire mixture used.

The total proportion of auxiliaries and additives can be 1 to 50, preferably 5 to 40% by weight on the middle - amount. The agents can be produced by customary cold or hot processes gene; the phase inversion temperature method is preferably used.

Production of bar soaps

The bar soaps according to the invention can be produced in the manner customary for such products take place, in particular through the inventive combination of soap with selected Amounts of glucosides and / or glucamides a particularly well formable, plastic in the heat and after cooling hard mass is formed and the molded products have a smooth surface exhibit. Usual methods for mixing or homogenizing, kneading, optionally polishing, Extrusion, possibly pelleting, extrusion, cutting and piece pressing are the subject man familiar and can be used to produce the bar soaps according to the invention. The production takes place preferably in the temperature range of 40 to 90 ° C, the meltable Feed materials are placed in a heatable kneader or mixer and the non-melting ones Components are stirred. The mixture can then be homogenized by a Sieve be given before the shaping follows. In a preferred embodiment of the Invention components (a) and (c) and optionally (e) in anhydrous, granular Form used as obtained after drying in a so-called "Flash dryer". Here is referred to the teaching of the German patent DE 195 34 371 C1 (Henkel).  

Examples

Based on the following recipe 1 according to the invention and the comparison recipes V1 and V2 soap bars were pressed and their application properties (evaluation on on a scale from + = satisfactory to +++ = very good). The results are shown in Table 1 summarized. According to all test criteria, the formulation according to the invention shows clear advantages on. So are bar soaps with olefin sulfonate compared to Comparative Examples 1 and 2, the instead of olefin sulfonate sulfosuccinate (V1) or a higher amount of lauryl glucoside (V2) ent keep, through a better skin feeling, increased foaming, less tendency to water exception, reduced deformability and crack formation after drying.

Table 1

Bar soaps - compositions and properties (quantities as% by weight)

Claims (9)

1. Bar soaps containing

• a) 1 to 20% by weight of alkyl and / or alkenyl oligoglycosides,
• b) 10 to 35% by weight of fatty acid salts,
• c) 10 to 40% by weight of olefin sulfonates,
• d) 0 to 10% by weight of fatty acids and
• e) 0 to 40% by weight of water-soluble structuring agents

with the proviso that the amounts given add up to 100% by weight with water and other conventional auxiliaries and additives. 2. bar soaps according to claim 1, characterized in that they contain as component (a) alkyl and alkenyl oligoglycosides of the formula (I),
R ¹ O- [G] _p (I)
in which R ^{1 is} an alkyl and / or alkenyl radical having 4 to 22 carbon atoms, G is a sugar radical having 5 or 6 carbon atoms and p is a number from 1 to 10. 3. bar soaps according to claims 1 and / or 2, characterized in that they contain as component (b) fatty acid salts of the formula (II),
R ² CO-OX (II)
in the R ² CO for an aliphatic, linear or branched acyl radical having 6 to 22 carbon atoms and 0 and / or 1, 2 or 3 double bonds and X for an alkali and / or alkaline earth metal, ammonium, alkylammonium, alkanolammonium and / or glucammonium stands. 4. bar soaps according to at least one of claims 1 to 3, characterized in that they contain as component (c) olefin sulfonates, which are obtained by addition of SO ₃ to olefins of the formula (III),
R ³ -CH = CH-R ⁴ (III)
wherein R ³ and R ⁴ independently of one another represent H or alkyl radicals having 1 to 20 carbon atoms, with the proviso that R ² and R ³ together have at least 6 carbon atoms. 5. bar soaps according to at least one of claims 1 to 4, characterized in that they are as Component (c) contain α-olefin sulfonates. 6. bar soaps according to at least one of claims 1 to 5, characterized in that they contain as optional component (d) fatty acids of formula (IV),
R ⁵ CO-OH (IV)
in which R ⁵ CO represents an aliphatic, linear or branched acyl radical having 6 to 22 carbon atoms and 0 and / or 1, 2 or 3 double bonds. 7. bar soaps according to at least one of claims 1 to 6, characterized in that they are as optional component (s) contain water-soluble structurants. 8. bar soaps according to at least one of claims 1 to 7, characterized in that it Furthermore, builders, builders, emulsifiers, superfatting agents, cation polymers, silicone compound contains dyes, dyes and perfumes. 9. bar soaps according to at least one of claims 1 to 8, characterized in that available that the components (a) and (c) and optionally (e) in practical anhydrous, granular form.