EP1829956A1 - Syndet cleansing bar - Google Patents

Abstract

Synthetic detergent wash piece comprises a synthetic surfactant as an active wash component and a homogeneous wax enamel with a melting point of 50-60[deg]C.

Description

The invention relates to a Syndetwaschstück with cleansing and skin care property based on at least one or more synthetic surfactants as detergent ingredients.

Such Syndetaschstücke have long been known. The term "syndet" is derived from "synthetic detergent". This is understood to mean soap-like pieces, which are mostly used for body cleansing or cleansing of the skin. As washing-active substances anionic, amphoteric or non-ionic surfactants are usually used, wherein the dermatological properties of a Syndetaschstückes also depend substantially on the particular surfactant used.

At the same time, such syndicate pieces used instead of conventional bar soaps have to meet a multitude of constantly increasing requirements, in particular with regard to the cleaning capacity and the care effect of the same. So should such laundry pieces prevent drying of the skin, greasy and in particular also have good skin compatibility. Furthermore, such washing pieces should have pleasant washing properties, ie form sufficient foam and cause a pleasant feeling on the skin. Furthermore, the properties of the Syndätaschstückes themselves are becoming increasingly high Requirements made. So should the washing on the one hand during drying have no or only a very low tendency to cracking. This is also significantly influenced by the water delivery capacity of the wash piece. Furthermore, the wash should have virtually no tendency to undesirable changes in the external appearance such as color changes or crystallization of constituents and thus have a high long-term stability even in the presence of moisture. To achieve a high long-term stability microcrystalline waxes and / or paraffin waxes have been used variously, but these have only an inadequate skin compatibility.

Furthermore, the washing piece in the washing process should have a certain water absorption and adapted dissolving properties, so that during the usual washing process, a sufficient amount of syndet is dissolved by the water and unfolds its washing action. On the other hand, however, to avoid excessive "shrinkage" of the wash piece, which is the property of the laundry is understood that in contact with water (eg when stored in the soap dish), the outer areas in a soft, swollen state, which no longer Cleaning can be used and represents an undesirable abrasion. The swollen (mop) surface layer can then be removed manually or mechanically easily from the unswollen core of a syndet piece. The optimization of this abrasion and the swelling properties of Syndätaschstückes are of dermatological and economic importance: if a piece of laundry too soft and the shrinkage too high, so too much surfactant is applied to the washing for cleaning on the skin, thereby worsening the dermatological properties. At the same time consumer acceptance decreases because the wash consumes too quickly. If, on the other hand, the washing piece is too hard, this is considered to be unpleasant and the washing piece to be too "edgy". At the same time, not enough surfactant is dissolved and it usually results in an undesirably high tendency to crack, since the wash piece dries too quickly. In addition, the hard and rough surface of the laundry items when washing by the consumer is perceived as unpleasant.

Overall, an optimal Syndetwaschstück thus meet a variety of mutually contradictory requirements.

The invention has for its object to provide a Syndätaschstück which solves the above objects, in particular has a high long-term stability even in the presence of moisture and very good Versumpfungseigenschaften and at the same time has a very good skin compatibility and very pleasant handling properties, is particularly tolerated by the skin and washing is perceived by the consumer as pleasant.

Surprisingly, this object is achieved by a washing piece according to claim 1, which contains constituents which form a homogeneous wax melt with a melting point of 50-60 °, or by a washing piece containing such homogeneous wax. In particular, the wax forming the melt can also be homogeneous and long-term stable at room temperature. Advantageous developments emerge from the subclaims.

It has been found that such a melt is adapted in a special way to the requirements of a Syndetwaschstückes and not only when washing by the user as pleasant "soft" is felt and at the same time surprisingly also has a very good dissolution behavior and particularly favorable Versumpfungseigenschaften. It is believed that homogeneous wax achieves that the composition absorbs water less or less quickly, thus improving the shrinkage properties. The homogeneous wax thus also influences the swelling properties of the washing piece in total. In contrast, it seems to be the case, for example, with microwaxes, that on the microcrystalline structure the water absorption and the swelling properties are less favorable, since, for example, water can more easily diffuse between the phase boundaries or the crystallite surfaces.

Beeswax, fatty acid esters c) and fatty alcohols d), to which the above statements apply, may be provided as constituents which form a homogeneous wax melt.

The presence of such homogeneous wax melts is furthermore particularly advantageous since it is then possible to dispense as far as possible or completely with the presence of paraffins or paraffin waxes and / or of microcrystalline waxes in the composition. The skin compatibility is thereby significantly improved. For some applications, it may be acceptable if the wash contains ≤ 2-5 wt .-% and / or ≤ 2-5 wt .-% microcrystalline waxes, or the total content of paraffin and microcrystalline waxes ≤ 2-5 wt. % based on the weight of the washing piece or the Syndetgrundmasse. Microcrystalline waxes (microwaxes) are paraffin waxes having a melting point of between 60 and 90 ° C, predominantly iso-paraffins and naphtha-substituted aromatics, and are finely crystalline at room temperature.

Although compositions with homogeneous wax melts having a melting point of 50-60 ° C have proven to be particularly effective, it may happen that certain constituents of the wax melt crystallize out in certain compositions. This can lead to an undesirable roughness of the washing pieces, wherein the crystallized components can be partially visible even by visual inspection. It has therefore proved to be particularly advantageous for certain compositions to add crystallization inhibitors which suppress crystallization of constituents of the homogeneous wax melt. Surprisingly, it has turned out that in the presence of such crystallization inhibitors and the seeding properties of the wash can be significantly improved. Surprisingly, the Versumpfungseigenschaften already significantly improved, even if no crystallization by visual inspection is perceptible. This may be due to the fact that the formation of crystal nuclei or microcrystals is prevented by the crystallization inhibitors and so the swelling properties of the wash on a microscopic basis but also significantly improved overall.

Particularly suitable crystallization inhibitors here are inulin and / or alkali metal fatty alcohol glutamates, in particular those having a C8 to C22 or to C30 fatty alcohol, more preferably a C10 to C16 or C12 to C14 fatty alcohol, most preferably a coconut oil fatty alcohol, in particular can be present in combination. The alkali metal salts may in each case in particular be sodium salts, if appropriate also potassium salts. Optionally, instead of inulin, other D-fructose containing polysaccharides or other predominantly or exclusively beta (1,2) -glykosidisch linked polysaccharides can be used, even if inulin has been found to be particularly preferred. Surprisingly, inulin and / or alkali metal fatty alcohol glutamates, in particular sodium cocoyl glutamate, very effectively reduces the crystallization of constituents of said composition which contains homogeneously melting waxes in the temperature range from 50 ° C. to 60 ° C., which at the same time leads to very pleasant washing properties. The alkali metal fatty alcohol glutamate may each be esterified with the fatty alcohol at the carboxyl group of the C1 or C4 atom. At the same time, surprisingly, particularly favorable sumping properties of the wash piece result. Preferably, beeswax is part of these waxes.

Optionally, at least partially instead of or in addition to the alkali metal fatty alcohol glutamate, an ethoxylated alkali metal fatty alcohol glutamate may be contained in the composition. Preferably, the weight fraction of ethoxylated fatty alcohol glutamates ≤ 50 wt .-% or ≤ 10-20 wt .-% than that of the nonethoxylated glutamates or these are not present.

It has proved to be advantageous if inulin is present in a proportion of 0.1-10% by weight, preferably 0.2-5% by weight, based on the total weight of the wash piece or the syndet base. The content of inulin may in particular also be 0.2-2% by weight, particularly preferably 0.5-2% by weight.

The content of alkali metal fatty alcohol glutamates may, based on the total weight of the wash piece or the Syndetgrundmasse 0.1-5 wt .-%, preferably 0.5-4 wt .-% or 1-3 wt .-% amount.

Furthermore, the washing piece preferably contains beeswax, particularly preferably in combination with one or more fatty acid esters c) and / or at least one or more fatty alcohols d). Preferably, the fatty acid ester c) and / or the fatty alcohol d) is contained in a higher proportion of weight percent in the wash piece or the Syndetgrundmasse than the beeswax. As a result, the wash has significantly improved Versumpfungseigenschaften and at the same time a very good skin compatibility. This is also surprising insofar as beeswax is often described as disadvantageous in terms of skin tolerance. Furthermore, the washing piece can be virtually free of paraffin and / or microcrystalline waxes, which further improves the skin compatibility.

As is known, beeswax is a wax having a melting point of 61-68 ° C, which consists essentially of a mixture of complex wax esters (usually about 65-75 wt .-%, usually about 70% by weight of the beeswax), normal fatty acids and hydroxyfatty acids (usually about 12-15% by weight, usually about 13-14% by weight) and also hydrocarbons (usually about 5-15% by weight). %, usually about 10-14 wt .-%) exists. The wax esters may be esters of C 16 to C 36 acids, in particular palmitic and cerotic acids, it being possible for a total of about 50 to 70 different esters or more to be present. The alcohol component may consist of a mixture of C24 to C36 alcohols and in particular also contain 1-triacontanol. As wax esters of hydroxyfatty acids, especially cerylhydroxypalmitate (optionally also stearate) may be present (usually about 6-11% by weight, usually about 8-9% by weight). 14-Hydroxypalmitin as well as 16-Hydroxy- and 17-Hydroxystearinsäure are mostly also components of beeswax. In particular lignocerin, cerotinic and melicic acid can occur as free wax acids. It goes without saying that beeswax as a natural raw material is subject to fluctuations in its composition and, if appropriate, that some of the constituents can be outside the above-mentioned ranges without substantially changing the properties of the beeswax as a whole.

Synthetic beeswax may also be used instead of or in addition to natural beeswax if this has a comparable melting point and comparable composition, in particular as defined above, and results in comparable or identical properties of the washing piece, in particular with regard to the skin feel and hardness thereof and with respect to the dulness.

The fatty acid esters used according to the invention may in particular be glycol fatty acid esters and / or glycerol fatty acid esters or esters of higher alcohols, in particular the alcohol may also have unesterified hydroxy groups. The fatty acid ester may in particular be a glycol mono- or diester or a mono- or diglyceride, if appropriate also a triglyceride. The ester may each be a mixed ester. Preferably, the Syndetwaschstück fatty acid ester c) in addition to fatty alcohols d).

The fatty acid ester c) and the fatty alcohol d) are preferably present in a higher proportion in percent by weight in the wash piece or in the basic mass thereof than beeswax. Optionally, it may be sufficient if only the total content of fatty acid ester c) and fatty alcohol d) is higher than that of beeswax. Particularly preferably, the weight fraction of beeswax is lower than that of the fatty acid ester c).

The proportion of fatty alcohol d) in the wash piece or the basic mass thereof is preferably lower than the proportion of the fatty acid ester c) in percent by weight.

Bienenwachs:

0,5-6 Gew.-%, vorzugsweise 0,5-4 Gew.-%, besonders bevorzugt 1 - 3 Gew.-%, meist bevorzugt 1,5-2,5 Gew.-%

Fettsäureester c):

2-16 Gew.-%, bevorzugt 4-12 Gew.-%, besonders bevorzugt 6-10 Gew.-%, meist bevorzugt 6-8 Gew.-%

Fettalkohol d):

0,5-10 Gew.-%, bevorzugt 1-8 Gew.-%, besonders bevorzugt 2-5 Gew.-%, meist bevorzugt 3-4 Gew.-%

In particular with regard to the shrinkage properties in combination with a pleasant washing sensation due to a not too high hardness of the washing piece, it is particularly advantageous if the washing piece contains, based on the weight of the washing piece or the basic mass:

Beeswax:

0.5-6 wt .-%, preferably 0.5-4 wt .-%, particularly preferably 1 - 3 wt .-%, most preferably 1.5-2.5 wt .-%

Fatty acid ester c):

2-16% by weight, preferably 4-12% by weight, more preferably 6-10% by weight, most preferably 6-8% by weight

Fatty alcohol d):

0.5-10% by weight, preferably 1-8% by weight, more preferably 2-5% by weight, most preferably 3-4% by weight

It is understood that the abovementioned ranges, in particular also the respectively preferred, further or most preferred ranges for the individual components, can be present independently of one another in the detergent composition. Preferably The three components are each present in the preferred, particularly preferred or most preferred content.

The fatty acid ester c) used according to the invention can contain, if appropriate exclusively, C14- to C22- or else C24- fatty acids, preferably C14- to C20-fatty acids, more preferably C16- to C18-fatty acids. The fatty acids are preferably each saturated and may be linear or optionally also branched fatty acids. In particular, the ester may be a stearic acid ester, preferably a pure stearic acid ester. Preferably, the ester is in each case a glyceride, in particular a mono- or diglyceride or optionally also triglyceride of said fatty acids. Optionally, the fatty acid ester may also be a mixed ester. Further, the syndiate sponge may contain one or more different fatty acid esters. Optionally, the ester may also be a fatty acid ester of a more than trihydric alcohol.

The at least one fatty alcohol d) may in particular be a C12 to C22 or a C16 to C20 or C16 to C18 fatty alcohol. In particular, the fatty alcohol may contain cetyl alcohol and / or stearyl alcohol. The fatty alcohol is preferably saturated. The fatty alcohol can be linear or branched. In particular, the fatty alcohol may be cetearyl alcohol (also called cetylstearyl alcohol), i. H. a mixture of about equal parts of cetyl and stearyl alcohol. The fatty alcohol d) may also partially contain other fatty alcohols, optionally only those mentioned above. Optionally, a portion of the fatty alcohol, preferably ≤ 12 wt .-%, preferably ≤ 5-10 wt .-% as Alkalifettalkoholsulfat, especially sodium fatty alcohol sulfate present, the composition may also be practically of fatty alcohol sulfates.

The constituents beeswax, fatty acid ester c) and fatty alcohol d) may in particular in a proportion of 10 to 20 wt .-%, optionally 12 to 16 wt .-% based on the weight the wash piece or the Syndetgrundmasse present.

• Waschaktive Substanzen (Tenside):    30-70 Gew.-%,    insbes. 30-50 Gew.-%
• Bindemittel:    10-40 Gew.-%,    insbes. 20-40 Gew.-%
• Füllstoffe:    5-30 Gew.-%,    inbes. 10-25 Gew.-%
• Additive:    0-20 Gew.-%,    insbes. 5-10 Gew.-%
• Wasser:    3-10 Gew.-%

The Syndetwaschstück may generally have the following composition based on the weight of the wash piece or the Syndetgrundmasse, being understood as Syndetgrundmasse the anhydrous composition without additives but with binders and fillers:

• Washing-active substances (surfactants): 30-70% by weight, in particular 30-50% by weight
• Binder: 10-40% by weight, especially 20-40% by weight
• Fillers: 5-30% by weight, in. 10-25% by weight
• Additives: 0-20% by weight, especially 5-10% by weight
• Water: 3-10% by weight

The wash piece may in particular contain anionic, nonionic and / or amphoteric surfactants. The wash can be ≤ 10 wt% or ≤ 5 wt% or ≤ 2-3 wt% or ≤ 1 wt% soaps, i. Salts - especially alkali metal salts - of fatty acids, contained or at least substantially or completely free of these.

Anionic surfactants may contain, for example, carboxylate, sulfate or sulfonate groups as functional groups. Examples of suitable anionic surfactants are alkyl ether carboxylates, alkyl benzene sulfonates, alkyl ether sulfates and phosphates, alkane sulfonates, alkyl ether sulfonates, glycerol ether sulfonates, alpha-methyl ester sulfonates, sulfo fatty acids, alkyl sulfates, fatty alcohol sulfates, glycerol ether sulfates, fatty acid ether sulfates, hydroxy mixed ether sulfates, ether carboxylic acids, sulfotriglycerides, fatty acid amides, ether sulfates, mono- and dialkyl sulfosuccinates , Mono- and dialkylsulfosuccinamate, alkyl ether sulfosuccinates, fatty acid isethionates, fatty acid arcosinates, fatty acid taurides, N-acyl amino acids, alkyl oligoglucoside sulfates, acyl amino acids, etc.

Nonionic surfactants may be especially those with polyether chains. Nonionic surfactants may in particular be polyglycol ethers, such as fatty alcohol polyglycol ethers, alkylphenol polyglycol ethers, fatty acid amide polyglycol ethers, alkoxylated triglycerides, mixed ethers and mixed formals, fatty alcohol or fatty acid oxethylates, fatty acid N-alkylglucamides, protein hydrolysates, polyol fatty acid esters, sorbitan esters, polysorbates, amine oxides, fatty acid amides, etc.

In particular, the wash piece of the invention may also contain amphoteric surfactants such as, for example, betaines, acyl / dialkylethylenediamine, for example sodium acylamphoacetate, sodium acylamphopropyonate, corresponding disodium salts, sodium acylamphohydroxypropylsulfonate and the like, or N-alkylamino acids, e.g. Alkylaminopropionic acid, aminopropylalkylglutamide, sodium alkylimidodiproprionate, carboxyglucinates and the like.

The above-mentioned surfactants are mentioned here only by way of example and the person skilled in the art is familiar with further anionic, nonionic or amphoteric surfactants. Optionally, the washing piece according to the invention may also contain cationic surfactants but also be substantially or completely free of them.

The washing piece may further contain at least one or more organic acids, in particular carboxylic acids including hydroxycarboxylic acids, which may each have one or more carboxyl groups, for example citric acid, lactic acid, malic acid or else formic acid.

The aqueous solution of Syndetwaschstückes, for example, a solution with 8 wt .-% Syndet, may have a pH of 5-6.5, in particular a pH of 5.0 to 6.0.

The composition of the synthezzle may also contain one or more of the following ingredients: tri-C 12 -C 13 alkyl citrate, Cetearylethylhexanoate, acrylate or acrylamide polymers, for example, acrylate / octylacrylamide copolymer, ethylenedistearamide, rice bran wax, oils such as sunflower oil and olive oil and other natural oils, hydrogenated oils such as hydrogenated olive oil, unsaponifiable natural oils such as unsaponifiable olive oil, cetyl palmitate, cetyl stearate, sorbitan esters such as sorbitan palmitate and Sorbitan stearate, sorbitan derivative, fatty acid esters such as stearic acid and palmitic acid with C6 to C10 alcohols, for example stearylheptanoate, glycerol sorbitanate, especially unsaturated glycerol sorbitanate, stearyl and palmityl caprylate, phytosphingosine, ceteareth-25, cetyl ricinoleate, decyl oleate, synthetic beeswax, isostearyl alcohol, behenyl PCA, Calcium stearate, coconut oil glycerides such as hydrogenated coconut oil glycerides, palm oils such as hydrogenated palm oil, fatty acid triglycerides such as caprylic / capric, myristic, stearic triglycerides, triacetates such as sucrose tetrastear attriacetate, PEG lanolin such as PEG-75 lanolin, pentaerythrityl fatty acid esters such as pentaerythrityl stearate or palmitate, C10-30 cholesterol / lanosterol esters, dimyristyl tartrate, Elaeis guineasis, palmitic acid, stearic acid, or mixtures of one or more of these ingredients. The composition may also contain one or more of the waxes Oryzasativa Bran wax, candelilla wax, ceresin / ceresin, carnauba wax and / or Japan wax, which waxes may be contained individually or in their entirety in lower proportions by weight in the composition than beeswax (especially natural Beeswax), or in each case or in total less than 50% or less than 10-20% by weight of beeswax or in each case in the composition except for unavoidable traces. The components mentioned here in their entirety may each be part of the homogeneous wax having a melting point of 50-60 ° C.

Optionally, the washing piece may have further constituents. The constituents of binders, fillers and additives mentioned are well known and can the respective Be adapted to requirements. In particular, the additives may be deodorants, processing aids, preservatives, perfume oils, fragrances, dyes or the like. As a binder, for example, starch can be used.

The composition of the washing piece may contain 5-50% by weight of starch, preferably 10-50% by weight or 20-50% by weight, in particular about 30% by weight. Optionally, however, the composition may also be starch free.

Optionally, the inventive washing pieces may contain less than 20% by weight of water-soluble alkali metal salts of isetonic acid esters and / or a content of ≦ 3% by weight of alkali metal salts of alkylsulfoacetates.

As fillers, for example, titanium dioxide, silicates, carbonates or the like can be used.

In contrast to emulsions, washes have a significantly lower water content and a higher surfactant content. The water content of the washes is generally ≦ 20% by weight, preferably ≦ 15% by weight or ≦ 10% by weight. The content of washing-active substances is generally ≥ 20% by weight, more preferably ≥ 25% by weight or ≥ 30% by weight, in each case based on the total weight of the composition.

wobei die Versumpfung unter definierten Standardbedingungen NTP zu bestimmen ist. Hierzu kann insbesondere das Waschstück einer definierten Größe und Form (z.B. quaderförmiges Waschstück mit ca. 15 g Gewicht und Kantenlängen 35 mm x 25 mm x 12 mm) in ein mit 30°C warmen Wasser (z.B. entionisiertes Wasser) und 22 Stunden in dem Wasser frei hängen gelassen werden (ohne Temperieren des Wassers). Danach werden die Stücke herausgenommen und die gequollene weiche Schicht wird manuell abgerieben. Anschließend werden die Stücke mit einem Tuch glattgestrichen und 45 min bei 60°C getrocknet, dann auf Raumtemperatur abgekühlt und gewogen. Die Versumpfung wird wie oben angegeben als prozentualer Gewichtsverlust ermittelt. Die eingesetzten Waschstücke einer Versuchsreihe sollen gleiche Größe und Form aufweisen.In particular, the shrinkage can be mediated quantitatively as a percentage weight loss in the form: $$\mathrm{Loss\; in\; weight}\%\left(\mathrm{Versumpfung}\right)=\frac{\mathrm{weighing}-\mathrm{Final\; weight}}{\mathrm{weighing}}\times 100.$$

whereby the shrinkage under defined standard conditions NTP is to be determined. For this purpose, in particular the washing piece a defined size and shape (eg cuboid wash piece with about 15 g weight and edge lengths 35 mm x 25 mm x 12 mm) in a 30 ° C warm water (eg deionized water) and 22 hours in the water to hang freely (without Tempering the water). The pieces are then removed and the swollen soft layer is rubbed off manually. Subsequently, the pieces are smoothed with a cloth and dried at 60 ° C for 45 min, then cooled to room temperature and weighed. Dumping is determined as a percentage of weight loss as indicated above. The used washing pieces of a test series should have the same size and shape.

The inventive wash pieces can generally under the conditions defined above (size and shape of the specimens, swelling of 22 hours in water at 30 ° C, abrasion of the swollen layer to the unswollen core, drying for 45 min at 60 ° C) a shrinkage of ≦ 60%, in particular ≦ 55% or particularly preferably ≦ 50%. Damping may be ≥ 30% or ≥ 40% under the conditions mentioned.

Examples:

Soap pieces were pressed and their respective properties were investigated on the basis of the compositions or formulations mentioned below.

The results are summarized in Table 1. Composition 1 here is a comparative example not according to the invention.

The calcination values are determined as indicated as weight percent of the abrasion in grams relative to the weight of the wash before swelling in grams (expressed in weight percent). With regard to the further conditions, reference is made to the above.

As can be seen from the table, the inventive washing pieces have significantly lower impregnation values than the comparative example. At the same time the washes are perceived as comfortable and not too hard to handle.

As can be further seen from the table, washing pieces having a beeswax ratio of about 1-3% by weight, in particular about 2% by weight, of glyceryl stearate of about 6-10% by weight, in particular approx 8 wt .-% and cetearyl alcohol of about 2-6 wt .-%, in particular about 4 wt .-%, by particularly low Versumpfungswerte and also have good handling properties with good skin compatibility. Further, it is apparent from the table that the ingredients inulin and sodium cocoylglutamate, especially in combination with each other, not only prevent crystallization of wax components and give "smooth" washes with a particularly comfortable feel, but also excellent seeding properties. All washes have a very good skin compatibility even in the presence of beeswax. Table 1: Versumpfungswerte Composition in% Reference 1 Recipe 1 Recipe 2 Recipe 3 Recipe 4 Recipe 5 Recipe 6 cetearyl 14 4 4 10 4 - 3 glyceryl stearate - 8th - 2 8th 8th 6 Beeswax (Cera alba) - 2 2 2 2 2 2 inulin - - - - 1 1 0.5 sodium cocoyl - - - - 2 2 1.5 surfactant mixture 40 40 50 45 37 41 41 Strength 30 30 30 30 30 30 30 fillers 16 16 14 11 16 16 16 Versumpfung 62% 45% 58% 55% 47% 44% 47%

Claims (19)

1. Syndätaschstück containing a) at least one synthetic surfactant as the detergent component, b) a homogeneous wax melt having a melting point of 50 ° C to 60 ° C forming constituents. 2. A washing piece according to claim 1, characterized in that the composition contains at least one crystallization inhibitor which inhibits crystallization of the homogeneous wax melt-forming constituents. 3. A washing piece according to claim 1 or 2, characterized in that the composition contains inulin and / or at least one alkali metal fatty alcohol glutamate. 4. washing piece according to claim 3, characterized in that an alkali metal fatty alcohol glutamate of a C8 to C30 fatty alcohol is contained or the glutamate exclusively comprises. 4. A washing piece according to claim 3, characterized in that an alkali metal fatty alcohol glutamate of a C10 to C16 fatty alcohol is contained or the glutamate exclusively has such. 5. A washing piece according to claim 3 or 4, characterized in that inulin is present in a proportion of 0.1 to 10 wt .-% based on the total weight of the wash piece or the Syndetgrundmasse. 6. washing piece according to one of claims 3 to 5, characterized in that the alkali metal fatty alcohol glutamate in a proportion of 0.1 to 5 wt .-% based on the total weight of the wash piece or the Syndetgrundmasse is included. 7. A washing piece according to any one of claims 1 to 6, characterized in that the washing piece contains ≤ 5 wt .-% paraffin and / or ≤ 5 wt .-% microcrystalline waxes or is substantially free of paraffin and / or microcrystalline waxes. 8. washing piece according to one of claims 1 to 7, characterized in that the washing piece contains as further constituents: c) one or more fatty acid esters of a C12 to C24 fatty acid with a dihydric or polyhydric alcohol, and / or d) at least one or more C12 to C22 fatty alcohols, e) beeswax. 9. A washing piece according to claim 8, characterized in that the fatty acid ester c) and / or the fatty alcohol d) thereof in a higher proportion in percent by weight in the washing piece or in the basic mass are as the beeswax. 10. A washing piece according to claim 8 or 9, characterized in that the components b) to d) are contained in a proportion of 5 to 25 wt .-% in the washing piece or in the detergent base. 11. A washing piece according to any one of claims 8 to 10, characterized in that the fatty acid ester c) in a higher proportion in weight percent based on the weight of the washing piece or the matrix is present as the fatty alcohol d). 12. A washing piece according to any one of claims 8 to 11, characterized in that the beeswax, the fatty acid ester c) and the fatty alcohol d) in a weight ratio based on the weight of the washing piece or the basic mass of 0.5 - 6 to 2-16 0.5 - 8 are present. 13. A washing piece according to claim 12, characterized in that the beeswax, the fatty acid ester c) and the fatty alcohol d) are present in parts by weight based on the weight of the washing piece or the basic mass of 1 - 3 to 5 - 11 to 2-6. 14. A washing piece according to any one of claims 8 to 13, characterized in that the fatty acid ester c) is a fatty acid glyceride. 15. A washing piece according to any one of claims 8 to 14, characterized in that the fatty alcohol is cetearyl alcohol. 16. A washing piece according to any one of claims 8 to 15, characterized in that the constituents beeswax, fatty acid esters c) and fatty alcohol d) in a proportion of from 10 to 20 wt .-% based on the weight of the washing piece or the Syndetgrundmasse present. 17. Washing piece according to one of claims 1 to 16, characterized in that the washing piece contains anionic, nonionic and / or amphoteric surfactants. 18. A washing piece according to any one of claims 1 to 17, characterized in that the washing piece and / or an aqueous solution of Syndetwaschstückes with 8 wt .-% syndet has a pH of 5.0 - 6.0.