EP1174493B1 - Soap bar comprising talc, alkali fatty acid and emollient, but not comprising alkyl oligoglycosides - Google Patents

Abstract

A shaped soap product free of alkyl-(oligo)-glycosides contains (a) talc, (b) a 12-22C fatty acid in alkali soap form and (c) an oil replacement material.

Description

The present invention relates to cosmetic cleansers in the form of shaped soap products. Such agents are known per se. It is essentially about surface-active substances or mixtures of substances which are available to the consumer in various Preparations are offered. The invention particularly relates to bar soaps with improved Smoothness and increased lime soap dispersibility due to a content of talc and one or more lubricating substances in simultaneous absence of alkyl (oligo) glycosides.

US-A-5264145 discloses a molded soap product containing C12-C22. Alkaline fatty acid, free fatty acid, waxes and optionally talc.

Surface-active substances - most prominently the alkali salts of the higher fatty acids, thus the classic "soaps" - are amphiphilic substances that are organic nonpolar substances in water can emulsify.

These fabrics not only soak up dirt from the skin and hair, they irritate, depending on your choice the surfactant or surfactant mixture, skin and mucous membranes more or less strong. It Although a large number of fairly mild surfactants is available, however, the surfactants of the prior art The technique either mild, but clean poor, or they clean well, but irritate Skin or mucous membranes.

Even in a simple water bath without the addition of surfactants, it comes first a swelling of the horny layer of the skin, the degree of swelling of, for example, the duration of the bath and its temperature depends. At the same time become water-soluble Fabrics, e.g. water-soluble dirt components, but also skin-own substances, which are responsible for the Water binding capacity of the horny layer are responsible, washed off or washed out.

Skin-specific surface-active substances also make skin fats to a certain extent solved and washed out. This requires a subsequent swelling after a subsequent Significant dehydration of the skin, which are reinforced by detergent additives can.

So it was a matter of remedying these evils.

In healthy skin, these processes are generally trivial, since the protective mechanisms The skin easily compensate for such minor disorders of the upper layers of the skin can. But even in the case of non-pathological deviations from normal status, e.g. due to environmental damage or irritation, photodamage, aging skin etc., the protective mechanism of the skin surface is disturbed. It may be He then, on his own, is no longer able to fulfill his task and must go through external measures are regenerated. The object of the present invention was thus to To remedy this deficiency of the prior art.

When it comes to body cleansing, bar soaps play an important role, and these are nowadays large-scale by continuous saponification of free fatty acids with alkalis, concentrating the Grundseifen and spray drying are produced. One differentiates between genuine alkali soaps containing exclusively fatty acid salts and optionally free fatty acids contain and so-called "Combibars", bar soaps, in addition to fatty acid salts still other synthetic surfactants, usually fatty alcohol ether or fatty acid isothionates exhibit. A special position, however, take the Syndetstückseifen, so-called "Syndetbars", which are free from impurities except fatty acid salts and contain only synthetic surfactants.

In Germany alone, several million pieces of soaps are used for personal hygiene every year sold. The requirements of the market for these mass consumables are included but always higher: bar soaps not only have to cleanse the skin, but also maintain it, d. H. prevent drying out, grease and provide protection against outside influences Offer. Of course, it is expected that the soap will be especially tolerated by the skin is, but it should still result in the application as much and creamy foam and cause a pleasant feeling on the skin. In this regard, manufacturers are looking for Bar soaps constantly looking for new ingredients that meet this increased requirement profile Take into account.

One differentiates between solid, usually piece-shaped, and liquid soaps. Main components are the alkali salts of the fatty acids of natural oils u. Fats, preferably the chain lengths C ₁₂ -C ₁₈ . Since lauric acid soaps foam particularly well, the lauric acid-rich coconut and palm kernel oils are preferred raw materials for the production of fine soap. The sodium salts of the fatty acid mixtures are solid, the potassium salts soft-pasty. For saponification, the diluted sodium or potassium hydroxide solution is added to the fatty raw materials in a stoichiometric ratio so that an excess of alkali of not more than 0.05% is present in the finished soap. In many cases, the soaps are no longer produced directly from the fats, but from the fatty acids obtained by lipolysis.

Common soap additives are fatty acids, fatty alcohols, lanolin, lecithin, vegetable oils, partial glycerides and other fat-like substances to restore the cleansed skin, antioxidants like ascorbyl palmitate or tocopherol to prevent autoxidation of the Soap (rancidity), complexing agent such as nitrilotriacetate for binding heavy metal traces, which could catalyze the autoxidative spoilage, perfume oils to achieve the desired fragrances, dyes for coloring the soap bars and if desired special additives.

• Toilettenseifen mit 20 - 50 % Kokosöl im Fettansatz, bis 5 % Rückfetter-Anteil und 0,5 - 2 % Parfümöl, sie bilden den größten Anteil der Feinseifen;
• Luxusseifen mit bis zu 5% besonders kostbarer Parfümöle;
• Deoseifen mit Zusätzen desodorierender Wirkstoffe, wie z. B. 3,4,4'-Trichlorcarbanilid (Triclocarban);
• Cremeseifen mit besonders hohen Anteilen rückfettender und die Haut cremender Substanzen;
• Babyseifen mit guter Rückfettung und zusätzlich pflegenden Anteilen wie z. B. Kamille-Extrakten, allenfalls sehr schwach parfümiert;
• Hautschutzseifen mit hohen Anteilen rückfettender Substanzen sowie weiteren pflegenden und schützenden Zusätzen, wie z. B. Proteinen;
• Transparentseifen mit Zusätzen von Glycerin, Zucker u. a., welche die Kristallisation der Fettsäuresalze in der erstarrten Seifenschmelze verhindern und so ein transparentes Aussehen bewirken;
• Schwimmseifen mit einer Dichte < 1, hervorgerufen durch bei der Herstellung kontrolliert eingearbeitete Luftbläschen.
  • Seifen mit abrasiven Zusätzen zur Reinigung stark verschmutzter Hände.

The most important types of fine soap are:

• Toilet soaps with 20 - 50% coconut oil in the fat mixture, up to 5% Rückfetter share and 0.5 - 2% perfume oil, they form the largest proportion of fine soaps;
• Luxury soaps with up to 5% of particularly precious perfume oils;
• Deo-soaps with additives of deodorizing agents such. B. 3,4,4'-trichlorocarbanilide (triclocarban);
• Cream soaps with particularly high levels of moisturizing and creaming substances;
• Baby soaps with good moisturizing and additional nourishing shares such. B. chamomile extracts, at best very poorly perfumed;
• Skin protection soaps with high levels of moisturizing substances as well as other nourishing and protective additives, such as: Proteins;
• Transparent soaps with additions of glycerine, sugar, etc., which prevent the crystallization of the fatty acid salts in the solidified soap melt and thus produce a transparent appearance;
• Floating soaps with a density <1, caused by controlled air bubbles during manufacture.
  • Soaps with abrasive additives to clean heavily soiled hands.

When washing with soap, the pH of the wash liquor is 8-10. This alkalinity neutralizes the natural acid mantle of the skin (pH 5-6). This one is added Normal skin, although relatively quickly regressed, in sensitive or damaged skin however, it can cause irritation. Another disadvantage of the soaps is the formation of insoluble Lime soaps in hard water. These disadvantages are not present in syndet soaps. They are based on synthetic anionic surfactants, which contain builders, backfats and others Additives can be processed to soap-like pieces. Their pH is in wide Borders variable and is usually neutral adjusted to pH 7 or the acid mantle of the skin adjusted to pH 5.5. They have excellent cleaning power, lather in everyone Water hardness, even in sea water, the proportion of lipid-reducing additives must because of their intensive Cleaning and degreasing effect to be significantly higher than normal soaps. you Disadvantage is the relatively high price.

Surfactants are amphiphilic substances that can dissolve organic, nonpolar substances in water. They provide, due to their specific molecular structure with at least one hydrophilic and a hydrophobic part of the molecule, for a lowering of the surface tension water, wetting the skin, facilitating the removal of dirt and solution, a light rinse and, as desired, foam control.

• anionische Tenside,
• kationische Tenside,
• amphotere Tenside und
• nichtionische Tenside.

The hydrophilic portions of a surfactant molecule are usually polar functional groups, for example -COO ^- , -OSO ₃ ^2- , -SO ₃ ^- , while the hydrophobic parts are usually nonpolar hydrocarbon radicals. Surfactants are generally classified according to the nature and charge of the hydrophilic part of the molecule. Here four groups can be distinguished:

• anionic surfactants,
• cationic surfactants,
• amphoteric surfactants and
• nonionic surfactants.

It is known that fine soaps based on tallow and coconut fatty acids by numerous Additives can be changed and improved in their performance properties can. In common Handbüchem, z. B. Geoffrey Martin: The Modern Soap and Detergent Industry, Vol. 1, (1959), Chapter VI, although inorganic fillers as extenders for Soaps described, but the talc is rather a disadvantageous effect in bar soaps attributed. The addition of 5-20% talc in Combibars is described in DE 196 49 896 described. By this addition, the smoothness and Kalkseifendispergiervermögen be improved.

The object of the invention was therefore to provide bar soaps available, which are free of the described disadvantages. It was particularly important to take into account that new bar soap compositions must also be able to be produced industrially, d. H. that the compositions, for example, a sufficient, but not too have high ductility and do not tend to crack during drying.

• Talkum, dessen Teilchendurchmesser im Bereich von 0,5-50 µm liegt
• eine oder mehrere Fettsäuren mit 12-22 C-Atomen in Form ihrer Alkaliseifen und
• eine oder mehrere rückfettend wirksame Substanzen

wobei das Seifenprodukt weniger als 1 Gew.-% an Alkyl-(oligo)-glycosiden enthäl.The invention therefore relates to a molded cosmetic soap product containing

• Talc whose particle diameter is in the range of 0.5-50 microns
• one or more fatty acids with 12-22 carbon atoms in the form of their alkali soaps and
• one or more moisturizing substances

wherein the soap product contains less than 1% by weight of alkyl (oligo) glycosides.

Contrary to the losses to be expected from the prior art, it was surprising found that in bar soaps that contain no alkyl glycosides as an additive, by a Addition of talc and a further content of one or more moisturizers Substances further improve the physical and performance engineering Properties, in particular the washing and lime soap dispersing power, the sifting smoothness as well as in particular the skin feeling in the wash is achieved. Furthermore It was found that the moisturizing effect of the lipid-replenishing substances by the use of talc in shaped soap products according to the invention in is increased synergistically.

Despite low total content of surfactants remain in the formulation the cleaning performance and foaming unaffected. The skin feeling is added the use of this wash even without additional skin care substances crucial improved.

The foam also gets an even better creaminess and more volume, which also was not expected. Another advantage of this invention is that the compatibility of the washing piece is improved because the total content of surface-active substances is reduced becomes.

The molded soap products according to the invention also possess the mechanical properties Deformation a particularly smooth surface. At the application they produce a creamy, stable foam. The lime soap precipitate formed in hard water remains dispersed in the water and does not lead to the gray-greasy deposits on the surface of sanitary objects.

Talc is a hydrated magnesium silicate of composition 3MgO · 4SiO ₂ . H ₂ O or Mg ₃ (Si ₄ O ₁₀ ). (OH) ₂ or Mg ₆ (OH) ₄ [Si ₈ O ₂₀ ] or Mg ₁₂ [Si ₁₆ O ₄₀ ], however, the proportions of hydrated magnesium aluminum silicate of may contain up to 12% by weight of Al ₂ O ₃ , based on the total product. Talc is a white, usually very fine, virtually odorless to slightly earthy-smelling powder, which feels greasy when rubbing, without being fatty. It is insoluble in water, cold acids or alkalis. Depending on the country of origin, the chemical purity of the talc (based on the content of anhydrous magnesium silicate) should be 93-98%. Talcum is used for the production of pharmaceutical, but especially for the production of cosmetic powders, which are used for personal care, but is also suitable for tablet production as a lubricant or superplasticizer.

The particle diameter (equivalent spherical diameter) of the talc is in the range of 0.5-50 μm. In general, such talcum qualities have been proven, not more than 5% by weight of particles below 1 μm and not more than 5% by weight of particles 50 μm size included. Preferably, the proportion of particles larger than 40 microns in Diameters are (sieve residue), at most 2 wt .-%. The mean particle diameter (D 50) is preferably 5 -15 μm.

The content of impurities should not exceed 1.6% by weight of Fe ₂ O ₃ , 1% by weight of CaO and 1% by weight of unbound water (dry loss at 1050 ° C.). The content of hydrated magnesium aluminum silicate may be up to 60% by weight, calculated as Al ₂ O ₃ , up to 12% by weight.

Advantageously according to the invention, the shaped soap products contain from 1 to 20% by weight of talcum.

Optionally advantageous according to the invention, the shaped soap products also contain 1 - 99 wt .-% of a base soap, for example one whose soap components composed of sodium tallowate, sodium cocoate and sodium palm kernel fatty acid salt.

In addition, the shaped soap products of the invention advantageously contain water in an amount of 5-35% by weight. The water content is partly due to the Manufacturing process, on the other hand, it has a favorable effect on the performance characteristics of Soap off.

As fatty acids for the preparation of the basic soap are the linear fatty acids having 12 to 22 carbon atoms, eg. As the lauric, myristic, palmitic, stearic, arachin and behenic acid, but also the unsaturated fatty acids, eg. As the palmitoleic, oleic, linoleic, linolenic, arachidonic and erucic acid used. Preference is given to technical mixtures, such as are available from vegetable and animal fats and oils used, for. As coconut oil fatty acid and tallow fatty acid. Particular preference is given to mixtures of coconut oil and tallow fatty acid slices, in particular a mixture of 50-80% by weight C ₁₆ -C ₁₈ tallow fatty acid and 20-50% by weight C ₁₂ -C ₁₄ coconut fatty acid.

The fatty acids are used in the form of their alkali soap, usually as sodium soaps. The soaps can also be obtained from the fats and oils directly by saponification (hydrolysis) be generated with sodium hydroxide solution and separating the glycerol. Preferably, the inventive molded soap products an additional proportion of 1-10 wt .-% of free fatty acids with 12-22 carbon atoms. These can be identical to the fatty acids of the basic soap and by a corresponding Alkalikalunterschuß in the saponification in the Basic soap are introduced. However, the free fatty acids are preferred after saponification and after concentration, before drying, metered.

According to the invention, the absence of alkyl (oligo) glycosides. Alkyl (oligo) glycosides are known, commercially available nonionic surfactants which are accessible by relevant methods of organic chemistry and corresponding to the formula R ¹ -O (G) _x , in which R ^{1 is} a primary C ₁₂ -C ₁₆ - Alkyl group and (G) _{x is} an oligoglycoside whose degree of oligomerization x = 1 to 2. Representative of the extensive literature, reference is hereby made to EP-A-0 301 298 and WO-A-90/3977. The alkyl (oligo) glycosides can be derived from aldoses or ketoses with 5 or 6 carbons. For ease of accessibility, alkyl (oligo) glucosides derived primarily from glucose are produced on an industrial scale. Absence of these substances means that they may at most be present as impurities in the mass underlying the invention combibar, at least less than 1 wt .-% must be.

It is furthermore preferred according to the invention to determine the content of other surface-active surfactants, other than the invention, as small as possible, advantageously less than 5 wt .-%, based on the total weight of the shaped soap products according to the invention. It is preferred to dispense entirely with such surfactants.

The soap bars according to the invention can be used as further auxiliaries and additives Emulsifiers, superfatting agents, fats, waxes, stabilizers, cationic polymers, silicone compounds, Pigments, biogenic agents, preservatives, dyes and fragrances contain.

1. Langkettige Alkohole z.B. Lanolin, Cetylalkohol

2. Mono- und Diglyceride bzw. die entsprechenden Glycolester

3. Mono-, Di- und Triglyceride pflanzlichen Ursprungs z.B. Mandelöl

4. Hydrierte Fette

5. Vaseline

6. Wachse

For example, backfats to be used according to the invention can advantageously be used:

1. Long-chain alcohols such as lanolin, cetyl alcohol

2. Mono- and diglycerides or the corresponding glycol esters

3. mono-, di- and triglycerides of plant origin eg almond oil

4. Hydrogenated fats

5. Vaseline

6. waxes

Further examples of greasing agents are oil bodies such as Guerbet alcohols based on fatty alcohols having 6 to 18, preferably 8 to 10 carbon atoms, esters of linear C ₆ -C ₂₀ fatty acids with linear C ₆ -C ₂₀ fatty alcohols, esters of branched C ₆ - C ₁₃ -carboxylic acids with linear C ₆ -C ₂₀ -fatty alcohols, esters of linear C ₆ -C ₁₈ -fatty acids with branched alcohols, in particular 2-ethylhexanol, esters of linear and / or branched fatty acids with polyhydric alcohols (for example Dimerdiol or trimerdiol) and / or Guerbetalkoho triglycerides based on C ₆ -C ₁₀ fatty acids, vegetable oils, branched primary alcohols, substituted cyclohexanes, Guerbetcarbon dialkyl ethers and / or aliphatic or naphthenic hydrocarbons into consideration.

Soap products according to the invention are particularly advantageously characterized in that they contain 1 - 30 wt .-% of moisturizing effective substances.

As emulsifiers or co-emulsifiers can nonionic, ampholytic and / or zwitterionic surfactants which are characterized by a lipophilic, preferably linear, alkyl or alkenyl group and at least one hydrophilic group. This hydrophilic group can be both ionogenic and nonionic Be a group.

Nonionic emulsifiers contain as hydrophilic group z. A polyol group, a polyalkylene glycol ether group or a combination of polyol and polyglycol ether groups. Preference is given to those compositions which contain nonionic surfactants from at least one of the following groups as O / W emulsifiers: (a1) addition products of from 2 to 30 mol of ethylene oxide and / or from 0 to 5 mol of propylene oxide onto linear fatty alcohols containing from 8 to 22 carbon atoms , fatty acids having 12 to 22 C atoms and alkylphenols having 8 to 15 C atoms in the alkyl group; (a2) C _12/18 fatty acid _mono- and diesters of addition products of 1 to 30 moles of ethylene oxide with glycerol; (a3) glycerol mono- and diesters and sorbitan mono- and diesters of saturated and unsaturated fatty acids having 6 to 22 carbon atoms and their ethylene oxide addition products and (a4) addition products of 15 to 60 moles of ethylene oxide with castor oil and / or hydrogenated castor oil; (a5) polyol and especially polyglycerol esters such. As polyglycerol polyricinoleate or polyglycerol poly-12-hydroxystearate. Also suitable are mixtures of compounds of several of these classes of substances. The addition products of ethylene oxide and / or of propylene oxide to fatty alcohols, fatty acids, alkylphenols, glycerol mono- and diesters and sorbitan mono- and diesters of fatty acids or to castor oil are known, commercially available products. These are mixtures of homologs whose mean Alkoxylierungsgrad the ratio of the amounts of ethylene oxide and / or propylene oxide and substrate, with which the addition reaction is carried out corresponds. C _12/14 fatty acid mono- and diesters of addition products of ethylene oxide with glycerol are known from DE-20 24 051 as refatting agents for cosmetic preparations.

Suitable w / o emulsifiers are: (b1) addition products of from 2 to 15 mol of ethylene oxide with castor oil and / or hydrogenated castor oil; (b2) _{partial esters} based on linear, branched, unsaturated or saturated C _12/22 fatty acids, ricinoleic acid and 12-hydroxystearic acid and glycerol, polyglycerol, pentaerythritol, dipentaerythritol, sugar alcohols (eg sorbitol) and polyglucosides (eg. cellulose); (b3) trialkyl phosphates; (b4) wool wax alcohols; (b5) polysiloxane-polyalkyl-polyether copolymers or corresponding derivatives; (b6) mixed esters of pentaerythritol, fatty acids, citric acid and fatty alcohol according to DE-PS 11 65 574 and (b7) polyalkylene glycols.

Suitable cationic polymers are, for example, cationic cellulose derivatives, cationic Strong, copolymers of diallylammonium salts and acrylamides, quaternized vinylpyrrolidone / Vinylimidazole polymers such. B. Luviquat ™ (BASF AG), condensation products of polyglycols and amines, quaternized collagen polypeptides such as "Lauryldimonium hydroxypropyl hydrolyzed collagen" (Lamequat ™ L, Grünau GmbH) or "Lauryldimmonium-hydroxypropyl-hydroxylated-wheat-protein" (Gluadin ™ WQ, Grünau GmbH), polyethyleneimine, cationic silicone polymers such. As amidomethicones or Dow Coming, Dow Coming Co./US, copolymers of adipic acid and dimethylaminohydroxypropyl-diethylenetriamine (Cartaretine ™, Sandoz / CH), polyaminopolyamides such as e.g. B. described in FR 22 52 840-A and their crosslinked water-soluble polymers, cationic Chitin derivatives such as quaternized chitosan, optionally microcrystalline distributed, cationic guar gum such. Jaguar ™ CBS, Jaguar ™ C-17, Jaguar ™ C-16 (Celanese) or Cosmedia Guar ™ C 261 (Henkel KGaA), quaternized ammonium salt polymers such as Mirapol ™ A-15, Mirapol ™ AD-1, Mirapol ™ AZ-1 from Miranol / US. Suitable silicone compounds are, for example, dimethylpolysiloxanes, methylphenylpolysiloxanes, cyclic silicones and amino, fatty, alcohol, polyether, epoxy, fluorine- and / or alkyl-modified silicone compounds. As superfatting agents can substances such as polyethoxylated lanolin derivatives, lecithin derivatives, polyol fatty acid esters, Monoglycerides and fatty acid alkanolamides are used, the latter being simultaneously serve as foam stabilizers. Typical examples of fats are glycerides, as Waxes come u. a. Beeswax, paraffin wax or microwaxes optionally in Combination with hydrophilic waxes, e.g. As cetylstearyl alcohol in question. As stabilizers Metal salts of fatty acids such. As magnesium, aluminum and / or zinc stearate be used. For example, titanium dioxide may be considered as a pigment under biogenic Active ingredients are understood, for example, as plant extracts and vitamin complexes. When Preservatives are, for example, phenoxyethanol, formaldehyde solution, parabens, Pentanediol or sorbic acid. As dyes can be used for cosmetic purposes suitable and approved substances are used, as for example in the Publication "Cosmetic Colorants" of the Dye Commission of the Deutsche Forschungsgemeinschaft, Verlag Chemie, Weinheim, 1984, pp. 81-106. These Dyestuffs are usually used in concentrations of 0.001 to 0.1 wt .-%, based on the entire mixture used. The total amount of auxiliaries and additives can 1 to 50, preferably 5 to 40 wt .-% - based on the means - amount.

Finally, the shaped soap products of the present invention may be perfumes and others customary auxiliaries and additives in an amount of up to 5 wt .-%. suitable Auxiliary substances are z. As binders or plasticizers. As such are z. Glycerol, Fatty acid partial glycerides or fatty alcohols with 12-22 C atoms. The fatty alcohols may, for. B. as a by-product of alkyl (oligo) glucosides are added together with these, if the alkyl (oligo) glucosides are used as crude product with a content of up to 50% by weight uses free fatty alcohol.

Other auxiliaries are z. As dyes, antimicrobial agents, deodorant agents, pigments (TiO ₂ ), optical brighteners and complexing agents.

The preparation of the molded soap products according to the invention can be carried out in soaps usual way. In this case, initially from fatty acid approach and sodium hydroxide solution Grundseife having a solids content of 25-50 wt .-% and prepared to a solids content of 50-70 wt .-% concentrated. In this z. B. 60% basic soap can already the talc, optionally also free fatty acid, an anionic surfactant and a complexing agent be mixed. Thereafter, the basic soap z. B. in a vacuum expansion dryer further dehydrated at 120 ° C to 130 ° C. During expansion, the soap cools spontaneously to temperatures below 60 ° C and solidifies. This fall soap noodles with a Solids content of 73-85 wt .-% of.

The further processing of this basic soap then represents the finishing of fine soap. It takes place in a soap mixer in which a slurry of the alkyl (oligo) glucoside and the other additives and additives in the soap noodles is mixed. Here are the Ground soap noodles and the slurry of alkyl (oligo) glycoside and z. B. fragrances, dye fen, pigments and other auxiliaries in a screw mixer with perforated sieves mixed and finally discharged via an extruder and optionally one Piece press fed when soap bars are to be produced.

Molded soap products according to the invention can also be used as noodles, needles, Granules, extrudates, flakes and in any other usual for soap products shaping available.

As an alternative to the process described, the talc can also be added only during the preparation be incorporated into the 73-85% basic soap. In this case, the talcum powder via suitable dosing devices, eg. B. belt scale and shaker at the same time the slurry of perfumes and auxiliaries supplied to the soap mixer.

The soap products of the invention are characterized by a particularly smooth surface from what pleasantly noticeable especially when processing to bar soap power. In use, it forms abundantly fine bubbles, creamy foam. In hard water Although Kalkseifenausfällungen form, but they remain dispersed in the solution and do not strike on hard surfaces as greasy-gray stains or cheesier ones Edge, but at best as a light, finely divided veil down.

The following examples are intended to illustrate the invention without limiting it. basic soaps Wt .-% sodium tallowate 68,00 sodium cocoate 17.00 Aqua 12,00 NaCl 0.45 EDTA 0.20 Natriumetidronat 0.09 glycerin 2.50 Sodium Palmkemfettsäuresalze ad 100.00 color slurry Wt .-% Wool alcohol 2.00 Paraffinum liquidum 33,00 Prunus dulcis 7.00 Disteardimoniumhectorit 1.00 TiO ₂ 13,00 water ad 100.00 example 1 Wt .-% color slurry 3.00 basic soaps 87,00 paraffin 2.00 Polyethylene glycol-150 2.00 talc 6.00 Perfume 1.00 Na ₂ S ₂ O ₃ 0.40 octyldodecanol 0.50 water ad 100.00

The ground soap noodles are dosed with the color slurry and the other components in a conventional soap mixer (screw mixer with perforated screen), homogenized by repeated mixing, discharged via an extruder, cut and processed in the usual way to pieces. Example 2 Wt .-% color slurry 3.00 basic soaps 85,00 paraffin 1.00 talc 7.00 Perfume 1.00 Na ₂ S ₂ O ₃ 0.40 octyldodecanol 0.50 water ad 100.00

The ground soap noodles are dosed with the color slurry and the other components in a conventional soap mixer (screw mixer with perforated screen), homogenized by repeated mixing, discharged via an extruder, cut and processed in the usual way to pieces. Example 3 Wt .-% color slurry 3.00 basic soaps 81.80 paraffin 1.00 talc 9.00 Perfume 1.00 Na ₂ S ₂ O ₃ 0.40 octyldodecanol 0.50 water ad 100.00

The ground soap noodles are dosed with the color slurry and the other components in a conventional soap mixer (screw mixer with perforated screen), homogenized by repeated mixing, discharged via an extruder, cut and processed in the usual way to pieces. Example 4 Wt .-% color slurry 3.00 basic soaps 78,90 paraffin 1.00 talc 12,00 Perfume 1.00 Na ₂ S ₂ O ₃ 0.40 octyldodecanol 0.50 water ad 100.00

The basic soap noodles become with the color slurry and the remaining components in one usual soap mixer (screw mixer with perforated sieve) dosed, by repeated mixing Homogenized, discharged via an extruder, cut and in the usual Way to pieces processed.

Claims (9)

1. Shaped cosmetic soap product comprising

   talc, whose particle diameter is in the range from 0.5-50 µm,

   one or more fatty acids having 12-22 carbon atoms in the form of their alkali soaps and

   one or more refatting substances,

      where the soap product comprises less than 1 % by weight of alkyl (oligo) glycosides.
2. Soap product according to Claim 1, characterized in that talc grades are chosen which comprise not more than 5% by weight of particles below 1 µm and not more than 5% by weight of particles above 50 µm in size.
3. Soap product according to Claim 1, characterized in that talc grades are chosen in which the fraction of particles greater than 40 µm in diameter (sieve residue) is at most 2% by weight.
4. Soap product according to Claim 1, characterized in that talc grades are chosen in which the average particle diameter (D50) is 5-15 µm.
5. Soap product according to Claim 1, characterized in that it comprises 1-30% by weight of refatting substances, preferably chosen from the group of long-chain alcohols, e.g. lanolin, cetyl alcohol, of mono- and diglycerides or the corresponding glycol esters, of mono-, di-, triglycerides of vegetable origin, e.g. almond oil, of hydrogenated fats, Vaseline, of waxes and of Guerbet alcohols based on fatty alcohols having 6 to 18, preferably 8 to 10, carbon atoms, of esters of linear C₆-C₂₀-fatty acids with linear C₆-C₂₀-fatty alcohols, of esters of branched C₆-C₁₃-carboxylic acids with linear C₆-C₂₀-fatty alcohols, of esters of linear C₆-C₁₈-fatty acids with branched alcohols, in particular 2-ethylhexanol, of esters of linear and/or branched fatty acids with polyhydric alcohols (such as e.g. dimerdiol or trimerdiol) and/or of Guerbet alcohols, of triglycerides based on C₆-C₁₀-fatty acids, of branched primary alcohols, of substituted cyclohexanes, of Guerbet carbonates, of dialkyl ethers and/or of aliphatic or naphthenic hydrocarbons.
6. Soap product according to Claim 1, characterized in that it comprises 1 - 99% by weight of fatty acids having 12-22 carbon atoms, in the form of their alkali soaps, in particular a base soap, for example one whose soap constituents are composed of sodium tallowate, sodium cocoate and sodium palm kernel fatty acid salt.
7. Soap product according to Claim 1, characterized in that the fatty acids are composed of 50-80% by weight of C₁₆-C₁₈-fatty acids and of 20-50% by weight of C₁₂-C₁₄-fatty acids.
8. Soap product according to Claim 1, characterized in that 1-10% by weight of free fatty acids having 12-22 carbon atoms are additionally present therein.
9. Soap product according to Claim 1, characterized in that it comprises water in an amount of from 5-35% by weight.