DE10216507A1 - Shaped detergent products, e.g. 'syndet' bars, contain anionic surfactants, pre-gelatinized crosslinked starch derivatives and 12-22C fatty acids as alkali(ne earth) soaps - Google Patents

Abstract

A shaped detergent product contains: (a) one or more anionic surfactants; (b) one or more pre-gelatinized crosslinked starch derivatives; and (c) up to 5 wt.% 12-22C fatty acid(s) as alkali(ne earth) soap(s).

Description

The present invention relates to cosmetic detergents in the form of shaped Washing products. Such means are known per se. It is essentially about surface-active substances or mixtures of substances that the consumer in different Preparations are offered.

Surfactants - best known are the alkali salts of higher fatty acids, i.e. the classic "soaps" - are amphiphilic substances that contain organic nonpolar substances Can emulsify water.

These substances not only wash dirt from the skin and hair, they irritate, depending on the choice of the surfactant or the surfactant mixture, skin and mucous membranes more or less strong. It Although a large number of fairly mild surfactants are available, the surfactants are of the state technology either mild, but cleans badly, or they clean well but irritate Skin or mucous membranes.

A simple water bath without the addition of surfactants is the first step swelling of the horny layer of the skin, the degree of this swelling being, for example, from depends on the duration of the bath and its temperature. At the same time, they become water-soluble Fabrics, e.g. B. water-soluble dirt components, but also the skin's own substances that are responsible for the Water binding capacity of the horny layer are responsible, washed off or washed out. The skin's own surface-active substances also make certain skin fats Dimensions solved and washed out. After initial swelling, this requires a subsequent significant dehydration of the skin, which is intensified by washing-active additives can.

The aim was to remedy these problems.

With healthy skin, these processes are generally irrelevant because the Protective mechanisms of the skin easily such minor disorders of the upper layers of the skin can compensate. But already in the case of non-pathological deviations from Normal status, e.g. B. due to environmental wear and tear or irritation, light damage, Aging skin etc., the protective mechanism of the skin surface is disturbed. Under certain circumstances then he is no longer able to fulfill his task under his own power and has to go through external measures are regenerated. The object of the present invention was therefore to remedy this lack of the prior art.

Bar soaps play a major role in body cleansing, which on an industrial scale these days by continuously saponifying free fatty acids with alkalis, concentrating the Basic soaps and spray drying can be produced. One differentiates between real alkali soaps that contain only fatty acid salts and possibly still free Contain fatty acids and so-called "combibars", bar soaps, in addition to fatty acid salts other synthetic surfactants, usually fatty alcohol ether sulfates or Have fatty acid isothionates. The syndet soap, however, has a special position, so-called "syndet bars" which are free of fatty acid salts except for impurities and contain only synthetic surfactants.

In Germany alone, several million soap bars are used every year for personal hygiene sold. The requirements of the market for this mass consumer item are thereby however, always higher: bar soaps not only have to clean the skin, they also have to care for it, d. H. prevent drying out, regreasing and protection against external influences Offer. Of course, the soap is expected to be particularly skin-friendly is, but it should still result in as much and creamy foam in use and cause a pleasant feeling on the skin. In this context, manufacturers of Bar soaps constantly looking for new ingredients that meet this increased requirement profile Take into account.

A distinction is made between solid, mostly bar-shaped, and liquid soaps. The main components are the alkali salts of the fatty acids of natural oils and the like. Fat, preferably of chain lengths C ₁₂ -C ₁₈ .

Since lauric acid soaps foam particularly well, the lauric acid-rich coconut and Palm kernel oils preferred raw materials for fine soap production. The sodium salts of Fatty acid mixtures are solid, the potassium salts are soft-pasty. The saponified is diluted Sodium hydroxide or potassium hydroxide added to the fat raw materials in a stoichiometric ratio so that There is a maximum of 0.05% of lye in the finished soap. frequently Today the soaps are no longer made directly from the fats, but from the Fat splitting produced fatty acids.

Usual soap additives are fatty acids, fatty alcohols, lanolin, lecithin, vegetable oils, Partial glycerides and other fat-like substances for regreasing the cleaned skin, Antioxidants such as ascorbyl palmitate or tocopherol to prevent autoxidation of the Soap (rancidity), complexing agents such as nitrilotriacetate for binding heavy metal Traces that could catalyze autoxidative spoilage, perfume oils to achieve the desired fragrance notes, 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'-Trichlorcarbonilid (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 soaps are:

• - Toilet soaps with 20-50% coconut oil in the fat base, up to 5% lipid replenishment and 0.5-2% perfume oil, they form the largest proportion of fine soaps;
• - luxury soaps with up to 5% particularly valuable perfume oils;
• - Deodorant soaps with additives deodorising agents, such as. B. 3,4,4'-trichlorocarbonilide (triclocarban);
• - Cream soaps with particularly high proportions of lipid-replenishing and skin-creaming substances;
• - Baby soaps with good regreasing and additional nourishing components such as B. chamomile extracts, at most very slightly perfumed;
• - Skin protection soaps with high proportions of moisturizing substances as well as other nourishing and protective additives, such as B. proteins;
• - Transparent soaps with additions of glycerin, sugar and others, which prevent the crystallization of the fatty acid salts in the solidified soap melt and thus bring about a transparent appearance;
• - Floating soaps with a density <1, caused by air bubbles incorporated in a controlled manner during production.
• - Soaps with abrasive additives for cleaning heavily soiled hands.

When washing with soap, the pH of the wash liquor is 8-10. This Alkalinity neutralizes the skin's natural acid coat (pH 5-6). This is at Normal skin regressed relatively quickly, with sensitive or damaged skin however, there may be irritation. Another disadvantage of soaps is their formation insoluble lime soaps in hard water.

These disadvantages do not exist with syndet soaps. These are fixed dermatological or cosmetic cleaning products which are essentially free of alkali fatty acid salts (classic Alkaline soaps) and are therefore characterized by special skin mildness. These systems are based on synthetic surfactants.

A significant disadvantage of these syndet soaps is that they can be used for so-called Tend to be swampy.

The basis of the syndet soaps are synthetic anionic surfactants, which are based on Refatting and other additives can be processed into soap-like pieces. Their pH can be varied within wide limits and is usually neutral to pH 7 or that Acid coat of the skin adjusted to pH 5.5. You have excellent Cleaning power, foaming in every water hardness, even in sea water, the proportion of lipid-replenishing additives because of their intensive cleaning and degreasing effect must be significantly higher than with be normal soaps. Their disadvantage is the relatively high price.

Surfactants are amphiphilic substances that dissolve organic, non-polar substances in water can. Due to their specific molecular structure, they provide at least one hydrophilic and a hydrophobic part of the molecule, for a reduction in Surface tension of the water, wetting the skin, facilitating the removal of dirt and solution, easy rinsing and - if desired - for foam regulation.

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

Bai the hydrophilic parts of a surfactant molecule are mostly polar functional groups, for example -COO ^- , -OSO ₃ ^2- , -SO ₃ ^- , while the hydrophobic parts usually represent non-polar hydrocarbon residues. Surfactants are generally classified according to the type and charge of the hydrophilic part of the molecule. There are four groups:

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

Anionic surfactants generally have carboxylate, sulfate or sulfonate groups as functional groups. In aqueous solution they form negatively charged organic ions in an acidic or neutral environment. Cationic surfactants are characterized almost exclusively by the presence of a quaternary ammonium group. In aqueous solution they form positively charged organic ions in an acidic or neutral environment. Amphoteric surfactants contain both anionic and cationic groups and accordingly behave in aqueous solution like anionic or cationic surfactants depending on the pH. They have a positive charge in a strongly acidic environment and a negative charge in an alkaline environment. In the neutral pH range, however, they are zwitterionic, as the following example should illustrate:

RNH ₂ ⁺ CH ₂ CH ₂ COOH X ^- (at pH = 2) X ^- = any anion, e.g. B. Cl ^-

RNH ₂ ⁺ CH ₂ CH ₂ CQQ ^- (at pH = 7)

RNHCH ₂ CH ₂ COO ^- B ⁺ (at pH = 12) B ⁺ = any cation, e.g. B. Na ⁺

Polyether chains are typical of non-ionic surfactants. Non-ionic surfactants form in aqueous medium no ions.

It is known that fine soaps based on tallow and coconut fatty acids by numerous The properties of additives changed and improved can be. In common manuals, e.g. B. Geoffrey Martin: The Modern Soap and Detergent Industry, Vol. 1, (1959), Chapter VI, are inorganic fillers as extenders for Soaps are described, but the talc is more of an adverse effect Attributed to bar soaps. The addition of 5-20% talc in combibars is described in DE 196 49 896 described. This addition is intended to smoothen and disperse the lime soap be improved.

The object of the invention was therefore to provide wash products places that are free from the disadvantages described. It was especially too take into account that new wash product compositions can also be produced on an industrial scale must be d. H. that the compositions are, for example, sufficient, but do not have too high ductility and do not tend to crack during drying.

• a) ein oder mehrere anionische Tenside
• b) ein oder mehrere vorgelatinisierte, quervernetzte Stärkederivate,
• c) höchstens 5 Gew.-% einer oder mehrerer Fettsäuren mit 12-22C-Atomen in Form ihrer Alkaliseifen.

The object of the invention, which eliminates the disadvantages of the prior art and achieves the objects according to the invention, is therefore a shaped washing product containing

• a) one or more anionic surfactants
• b) one or more pre-gelatinized, cross-linked starch derivatives,
• c) at most 5% by weight of one or more fatty acids with 12-22C atoms in the form of their alkali soaps.

Despite the low total content of surface-active substances in the formulation the cleaning performance and foam development remain unaffected. The skin feeling is at the use of this wash piece even without additional skin care substances significantly improved.

Surprisingly, it has been shown that one or more pre-gelatinized, cross-linked Starch derivatives significantly reduce the very important phenomenon of swamping and also after using the washing products according to the invention to an unusual leads to smooth and velvety skin feeling. Both are essential for the user Product improvement.

The foam also gets better creaminess and more volume what was also not to be expected. Another advantage of this invention is its compatibility of the wash piece is improved since the total content of surface-active substances is reduced.

The shaped washing products according to the invention also have after mechanical deformation a particularly smooth surface. When used, they generate a creamy, stable foam. The lime soap deposit formed in hard water remains dispersed in the water and does not lead to the gray-greasy deposits on the Surface of sanitary objects.

Advantageously according to the invention, the shaped washing products contain up to 99% by weight, preferably from 5 to 60% by weight, particularly preferably from 15 to 45% by weight, in each case based on the total weight of the preparations, on one or more anionic surfactants.

• 1. Acyl-isethionate, z. B. Natrium-/Ammoniumcocoyl-isethionat,
• 2. Alkylarylsulfonate,
• 3. Alkylsulfonate, beispielsweise Natriumcocosmonoglyceridsulfat, Natrium C_12-14 Olefinsulfonat, Natriumlaurylsulfoacetat und Magnesium PEG-3 Cocamidsulfat,
• 4. Sulfosuccinate, beispielsweise Dioctylnatriumsulfosuccinat, Dinatriumlaurethsulfosuccinat, Dinatriumlaurylsulfosuccinat und Dinatriumundecylenamido-MEA-Sulfosuccinat

According to the invention, the anionic surfactants can advantageously be selected from the group of the sulfonic acids and their salts, such as

• 1. acyl isethionates, e.g. B. sodium / ammonium cocoyl isethionate,
• 2. alkylarylsulfonates,
• 3. alkyl sulfonates, for example sodium coconut monoglyceride sulfate, sodium C _12-14 olefin sulfonate, sodium lauryl sulfoacetate and magnesium PEG-3 cocamide sulfate,
• 4. Sulfosuccinates, for example dioctyl sodium sulfosuccinate, disodium laureth sulfosuccinate, disodium lauryl sulfosuccinate and disodium undecylenamido MEA sulfosuccinate

Anionic surfactants preferred according to the invention are sulfosuccinates and acyl isethionates.

• 1. Acylglutamate, beispielsweise Natriumacylglutamat, Di-TEA-palmitoylaspartat und Natrium Caprylic/Capric Glutamat,
• 2. Acylpeptide, beispielsweise Palmitoyl-hydrolysiertes Milchprotein, Natrium Cocoylhydrolysiertes Soja Protein und Natrium-/Kalium-Cocoylhydrolysiertes Kollagen,
• 3. Sarcosinate, beispielsweise Myristoyl Sarcosin, TEA-lauroyl Sarcosinat, Natriumlauroylsarcosinat und Natriumcocoylsarkosinat,
• 4. Taurate, beispielsweise Natriumlauroyltaurat und Natriummethylcocoyltaurat,
• 5. Acyllactylate, Lauroyllactylat, Caproyllactylat
• 6. Alaninate

Carbonsäuren und Derivate, wie

• 1. Carbonsäuren, beispielsweise Laurinsäure, Aluminiumstearat, Magnesiumalkanolat und Zinkundecylenat,
• 2. Ester-Carbonsäuren, beispielsweise Calciumstearoyllactylat, Laureth-6-Citrat und Natrium PEG-4-Lauramidcarboxylat,
• 3. Ether-Carbonsäuren, beispielsweise Natriumlaureth-13-Carboxylat und Natrium PEG- 6-Cocamide Carboxylat, Phosphorsäureester und Salze, wie beispielsweise DEA-Oleth-10-Phosphat und Dilaureth-4 Phosphat,

sowie
Schwefelsäureester, wie

• 1. Alkylethersulfat, beispielsweise Natrium-, Ammonium-, Magnesium-, MIPA-, TIPA- Laurethsulfat, Natriummyrethsulfat und Natrium C_12-13-Parethsulfat,
• 2. Alkylsulfate, beispielsweise Natrium-, Ammonium- und TEA-Laurylsulfat.

Further anionic surfactants which are advantageous according to the invention are advantageous anionic surfactants which are acylamino acids (and their salts), such as

• 1. acylglutamates, for example sodium acylglutamate, di-TEA-palmitoylaspartate and sodium caprylic / capric glutamate,
• 2. acyl peptides, for example palmitoyl-hydrolyzed milk protein, sodium cocoyl-hydrolyzed soy protein and sodium / potassium-cocoyl-hydrolyzed collagen,
• 3. sarcosinates, for example myristoyl sarcosin, TEA lauroyl sarcosinate, sodium lauroyl sarcosinate and sodium cocoyl sarcosinate,
• 4. taurates, for example sodium lauroyl taurate and sodium methyl cocoyl taurate,
• 5. Acyl lactylate, lauroyl lactylate, caproyl lactylate
• 6. Alaninate

Carboxylic acids and derivatives, such as

• 1. carboxylic acids, for example lauric acid, aluminum stearate, magnesium alkanolate and zinc undecylenate,
• 2. ester carboxylic acids, for example calcium stearoyl lactylate, laureth-6 citrate and sodium PEG-4 lauramide carboxylate,
• 3. ether carboxylic acids, for example sodium laureth-13 carboxylate and sodium PEG-6 cocamide carboxylate, phosphoric acid esters and salts, such as, for example, DEA-oleth-10-phosphate and dilaureth-4 phosphate,

such as
Sulfuric acid esters, such as

• 1. alkyl ether sulfate, for example sodium, ammonium, magnesium, MIPA, TIPA laureth sulfate, sodium myreth sulfate and sodium C _12-13 pareth sulfate,
• 2. Alkyl sulfates, for example sodium, ammonium and TEA lauryl sulfate.

It is advantageous according to the invention if one or more pre-gelatinized, crosslinked Starch derivatives in a concentration of 0.1 to 20% by weight, preferably in one Concentration from 0.3 to 15% by weight and very particularly preferably in a concentration from 0.5 to 10% by weight, based on the total weight of the preparation, in the Preparations according to the invention are included.

According to the invention, it is particularly advantageous if as a pre-gelatinized, crosslinked Starch derivatives of hydroxypropylated phosphate esters are used. Particularly advantageous starch derivatives such as those described in US Pat. No. 6,248,338 are special advantageous hydroxypropyl distarch phosphate. Use is very particularly preferred a Hydroxypropyldistärkephosphates, as it as Product Structure® XL from the company National Starch is sold.

The shaped washing products according to the invention also advantageously contain Water in an amount of 0.5-35% by weight. The water content is due on the one hand to the manufacturing process, on the other hand it has a beneficial effect on the properties of use the soap out.

It may also be advantageous if the basic soap contains additional surfactants inflict.

• 1. Acyl-/dialkylethylendiamin, beispielsweise Natriumacylamphoacetat, Dinatriumacylamphodipropionat, Dinatriumalkylamphodiacetat, Natriumacylamphohydroxypropylsulfonat, Dinatriumacylamphodiacetat und Natriumacylamphopropionat,
• 2. N-Alkylaminosäuren, beispielsweise Aminopropylalkylglutamid, Alkylaminopropionsäure, Natriumalkylimidodipropionat und Lauroamphocarboxyglycinat.

Amphoteric surfactants to be used advantageously

• 1. acyl- / dialkylethylenediamine, for example sodium acylamphoacetate, disodium acylamphodipropionate, disodium alkylamphodiacetate, sodium acylamphohydroxypropylsulfonate, disodium acylamphodiacetate and sodium acylamphopropionate,
• 2. N-alkylamino acids, for example aminopropylalkylglutamide, alkylaminopropionic acid, sodium alkylimidodipropionate and lauroamphocarboxyglycinate.

• 1. Alkohole,
• 2. Alkanolamide, wie Cocamide MEA/DEA/MIPA,
• 3. Aminoxide, wie Cocoamidopropylaminoxid,
• 4. Ester, die durch Veresterung von Carbonsäuren mit Ethylenoxid, Glycerin, Sorbitan oder anderen Alkoholen entstehen,
• 5. Ether, beispielsweise ethoxylierte/propoxylierte Alkohole, ethoxylierte/propoxylierte Ester, ethoxylierte/propoxylierte Glycerinester, ethoxylierte/propoxylierte Cholesterine, ethoxylierte/propoxylierte Triglyceridester, ethoxyliertes propoxyliertes Lanolin, ethoxylierte/propoxylierte Polysiloxane, propoxylierte POE-Ether und Alkylpolyglycoside wie Laurylglucosid, Decylglycosid und Cocoglycosid.
• 6. Sucroseester, -Ether
• 7. Polyglycerinester, Diglycerinester, Monoglycerinester
• 8. Methylglucosester, Ester von Hydroxysäuren

Non-ionic surfactants to be used advantageously

• 1. alcohols,
• 2. alkanolamides, such as cocamides MEA / DEA / MIPA,
• 3. amine oxides, such as cocoamidopropylamine oxide,
• 4. esters which are formed by esterification of carboxylic acids with ethylene oxide, glycerol, sorbitan or other alcohols,
• 5. ethers, for example ethoxylated / propoxylated alcohols, ethoxylated / propoxylated esters, ethoxylated / propoxylated glycerol esters, ethoxylated / propoxylated cholesterols, ethoxylated / propoxylated triglyceride esters, ethoxylated propoxylated lanolin, ethoxylated / propoxylated polysiloxanes, propoxylated POE ethers and alkylpolyglycosides such as lauryl polyglycosides cocoglycoside.
• 6. sucrose esters, ether
• 7. Polyglycerol esters, diglycerol esters, monoglycerol esters
• 8. Methyl glucose esters, esters of hydroxy acids

• 1. Alkylamine,
• 2. Alkylimidazole,
• 3. Ethoxylierte Amine und
• 4. Quaternäre Tenside.
• 5. Esterquats

Cationic surfactants to be used advantageously

• 1. alkylamines,
• 2. alkylimidazoles,
• 3. Ethoxylated amines and
• 4. Quaternary surfactants.
• 5. Esterquats

Quaternary surfactants contain at least one N atom with 4 alkyl and / or aryl groups is covalently linked. Regardless of the pH value, this leads to a positive charge. Advantageous quaternary surfactants are alkyl betaine, alkyl amidopropyl betaine and Alkyl amidopropylhydroxysulfain. Cationic surfactants can also be preferred in the sense of the present invention are selected from the group of quaternary ammonium compounds, in particular benzyltrialkylammonium chlorides or bromides, such as, for example Benzyldimethylstearylammoniumchlorid, further alkyltrialkylammonium salts, for example for example cetyltrimethylammonium chloride or bromide, Alkyldimethylhydroxyethylammonium chlorides or bromides, dialkyldimethylammonium chlorides or bromides, Alkylamidethyltrimethylammonium ether sulfates, alkylpyridinium salts, for example lauryl or Cetylpyrimidinium chloride, imidazoline derivatives and compounds with a cationic character such as Amine oxides, for example alkyldimethylamine oxides or alkylaminoethyldimethylamine oxides. Cetyltrimethylammonium salts are particularly advantageous.

According to the invention is the absence of alkyl (oligo) glycosides. Alkyl (oligo) glycosides are known, commercially available nonionic surfactants which can be obtained by relevant processes in organic chemistry and which correspond 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 residue whose degree of oligomerization x = 1 to 2. As a representative of the extensive literature, reference is made here 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. Because of the easy accessibility, mainly alkyl- (oligo) -glucosides derived from glucose are produced on an industrial scale. The absence of these substances means that they may at most be present as impurities in the mass on which the combibar according to the invention is based, and in any case must be less than 1% by weight.

The shaped washing product according to the invention can be used as further auxiliaries and additives Oil bodies (refatting agents), emulsifiers, superfatting agents, fats, waxes, stabilizers, cationic polymers, silicone compounds, pigments, biogenic agents, preservatives, Dyes and fragrances included.

• 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

The following moisturizers can be used advantageously, for example:

• 1. Long chain alcohols e.g. B. lanolin, cetyl alcohol
• 2. Mono- and diglycerides or the corresponding glycol esters
• 3. Mono-, di- and triglycerides of vegetable origin z. B. almond oil
• 4. Hydrogenated fats
• 5. Vaseline
• 6. Waxes

Further refatting agents are, for example, 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 (e.g. Dimer diol or trimer diol) and / or Guerbet alcohol triglycerides based on C ₆ -C ₁₀ fatty acids, vegetable oils, branched primary alcohols, substituted cyclohexanes, Guerbet carbonate dialkyl ethers and / or aliphatic or naphthenic hydrocarbons.

Finally, the shaped washing products according to the invention can contain fragrances and others Contain conventional auxiliaries and additives in an amount of up to 5 wt .-%. suitable Auxiliaries are e.g. B. binders or plasticizers. As such, z. B. glycerin, Fatty acid partial glycerides or fatty alcohols with 12-22 carbon atoms.

Other auxiliaries are e.g. B. dyes, antimicrobial substances, deodorant active ingredients, pigments (TiO ₂ ), optical brighteners and complexing agents.

The production of the shaped washing products according to the invention can be carried out for soaps usual way.

The washing products according to the invention are particularly smooth Surface. A lot of fine-bubble, creamy foam forms when in use. In hard water Although lime soap precipitates also form, these remain dispersed in the solution and do not appear as greasy gray spots or cheesy on hard surfaces Edge, but at most as a light, finely divided veil.

The following examples are intended to illustrate the invention without restricting it. formulation Examples

Claims (4)

1. Shaped washing product containing a) one or more anionic surfactants b) one or more pre-gelatinized, cross-linked starch derivatives, c) at most 5% by weight of one or more fatty acids with 12-22 carbon atoms in the form of their alkali soaps. 2. washing product according to claim 1, characterized in that it is up to 99 wt .-%, preferably from 5 to 60% by weight, particularly preferably from 15 to 45% by weight, in each case based on the total weight of the preparations, on one or more anionic surfactants contains. 3. Wash product according to claim 1, characterized in that as pregelatinized, cross-linked starch derivatives hydroxypropylated phosphate esters are used. 4. Preparation according to claim 1, characterized in that as pregelatinized, cross-linked starch derivative hydroxypropyl distarch phosphate (CAS number 113894-92-1) is used.