DE19511574A1 - Pearl lustre concentrate - Google Patents

Abstract

Pearl lustre concentrate in the form of an aq. dispersion of pearl lustre forming components of formula (I) R<1>-O-CH2-CH2-O-R<2> (I) in which R<1> = a linear fatty acyl gp. with 16 or 18 C and R<2> = H or a gp. R<1>, with the provisos that less than 40% of the gps. R<2> = H and in 30-60% of the cpds. in which R<2> is not H, R<1> and R<2> both represent the same fatty acyl gp.; and emulsifiers comprising alkyl-poly-glycosides of formula (II) RO-(Z)x (II) in which R = 6-22 C alkyl gp., Z = a mono- or oligosaccharide and x = 1.1-5, or adducts of these with 1-10 mols. ethylene oxide and/or propylene oxide.

Description

The invention relates to a pearlescent concentrate in the form of a never drig viscous aqueous dispersion with special pearlescent compo nents and emulsifiers.

Aqueous preparations of surfactants and cosmetic preparations can be used by incorporating substances that after cooling in the form of fine, mother-of-pearl-looking crystals fail and in the preparations stay dispersed, a pearlescent, aesthetically pleasing appearance to lend. As pearlescent substances are, for. B. the mono-, di- and optionally triesters of ethylene glycol or glycerol with C₁₄-C₂₂- Fatty acids, oligomeric alkylene glycol esters of this type, for example PEG-3 distearate, fatty acids and monoalkanolamides of fatty acids.

It is also known that the pearlescent agents mentioned in water or in aq disperse stable surfactant solutions and get them in this way concentrated pearlescent dispersions to provide the pearlescent to add the preparations without heating, so that this is for the Ein work otherwise necessary heating and cooling to form the pearl glossy crystals are unnecessary.

Such pearlescent concentrates, which are characterized in particular by good flow and Pumping ability are from the German published documents DE 38 43 572 and DE 41 03 551 known.

Although the main development work in the field of Perl gloss concentrates of the optimization of the dosage form apply, so attempts to change the appearance of the Perl to further improve gloss itself.

It has now surprisingly been found that when using a whole special mixture of pearlescent esters with alkyl polyglycosides low-viscosity pearlescent concentrates can be formulated as emulsifiers nen, their incorporation into the final products to a pearlescence quite extraordinary ordinary brilliance and with other excellent properties fuh ren.

The use of ethylene glycol mono- and difatty acid esters as pearl glossy components have long been known to the person skilled in the art, e.g. B. from EP-A2-0 268 992. Mixtures are usually from a series of mono- and diesters used, as under the usual Reactionbe conditions arise for this esterification reaction. But it was now found that it is extremely po on the pearlescent in the final product has a positive effect if within this ester mixture

• - the content of monoesters does not exceed a certain value, and
• - a certain proportion of symmetric esters, i.e. H. Diestern with same fatty acid residues.

The subject of the application is thus a pearlescent concentrate in the form of a aqueous dispersion with pearlescent components and emulsifiers, characterized in that

• the pearlescent components are compounds of the formula (I), R¹-O-CH₂-CH₂-O-R² (I), in which R¹ is a linear fatty acyl group with 16 or 18 carbon atoms and R² Hydrogen or a group R1 is provided that a product at which
• - less than 40% of the groups R² are hydrogen and
• - in 30 to 60% of the compounds in which R² is not hydrogen R¹ and R² represent the same fatty acyl groups,
• and as emulsifiers, alkyl polyglycosides of the general formula (II), RO- (Z) _x (II), in which R represents an alkyl radical having 6 to 22 carbon atoms, Z represents a mono- or oligosaccharide, x represents a number of 1, 1 to 5, or their addition products containing 1 to 10 molecules of ethylene oxide and / or propylene oxide.

In a preferred embodiment of the invention, the inventions pearlescent components according to the invention about 25-35% by weight monoesters, based on the total amount of ethylene glycol esters. Within the diester are compounds with the same fatty acyl group preferably in amounts of 45- 60 wt .-%, in particular about 50-55 wt .-%, based on the total amount of ethylene glycol diester.

In a further preferred embodiment of the invention, the pearlescent components according to the invention less than 15% by weight, in particular about 10% by weight and less, of monoesters, based on the Total amount of ethylene glycol esters. Verbin are within the diester with the same fatty acyl group also preferably in amounts of 45- 60 wt .-%, in particular about 50-55 wt .-%, based on the total amount of ethylene glycol diester.

In a preferred embodiment of the present invention, the Compounds according to formula (I) the only pearlescent components.

However, it has been shown that the extraordinarily brilliant pearlescent is also formed if the concentrates according to the invention are further pearlescent components in amounts up to 100 wt .-%, in particular up to 50 wt .-%, based on the compounds of formula (I).

These other pearlescent compounds include, for example

• - linear, saturated fatty acids with 14 to 22 carbon atoms,
• - Mono-, di- and triesters of glycerin with linear, saturated fat acids with 12 to 22 carbon atoms,
• Monoalkanolamides of the general formula (III), R³-CO-NH-X (III), in which R³ is an alkyl group with 8 to 22 carbon atoms, especially with 8 to 18 carbon atoms, and X is a group -CH₂-CH₂-OH, a group Represents -CH₂-CH₂-CH₂-OH or a group -C (CH₃) ₂-OH,
• β-ketosulfones of the general formula (IV), in which R⁴ represents an alkyl or alkenyl group with 11 to 21 carbon atoms, R⁵ and R⁶ represent hydrogen atoms or together represent an ethylene group which forms a tetrahydrothiophene dioxide ring with the group lying between R⁵ and R⁶.

As linear fatty acids such. B. palmitic acid, stearic acid, arachine acid or behenic acid are used; but techni are also suitable cal fatty acid cuts that are wholly or predominantly composed of fatty acids with 16 up to 22 carbon atoms, z. B. palmitin-stearic acid fractions as they from tallow fatty acid or palm fatty acid by separating the rivers at + 5 ° C sigenic fatty acids or palmitin-stearic acid fractions, as can be obtained by hardening tallow fatty acid or palm fatty acid.

Regarding the esters of glycerol that can be used in the teaching according to the invention include the mono-, di- and especially triesters with lauric acid, My ristic acid, palmitic acid, stearic acid and behenic acid, as well as with Mi of these fatty acids.

Preferred monoalkanolamides are the monoethanolamides. These connections can contain a uniform alkyl radical. However, it is common for the production of alkanolamides from fatty acid mixtures from natural Sources, e.g. B. coconut fatty acids, so that appropriate mixtures regarding the alkyl radicals.  

Compared to most known pearlescent agents, the β-ketosulfones have of the general formula (IV) the advantage that the pearlescence of the preparation has higher thermal stability, d. H. that the pearlescent at Heating the preparations to over 50 ° C, sometimes even to over 70 ° C, remains for several hours. For more information for the above-mentioned β-ketosulfones, express reference is made to the content of cal patent application 35 08 051 pointed out.

Fatty acid mono- or dialkanolamides and their derivatives are in recently suspected of being involved in the formation of nitroamines his. It may therefore be desirable to have cosmetic preparations without such To formulate alkanolamines and alkanolamine derivatives.

The pearlescent concentrates according to the invention contain Al as emulsifiers kylpolyglycosides.

The alkyl polyglycosides according to formula (II) are ge by the following parameters indicates:

The alkyl radical R contains 6 to 22 carbon atoms and can be both linear be branched as well. Primary linear and 2-position are preferred methyl branched aliphatic radicals. Such alkyl radicals are, for example 1-octyl, 1-decyl, 1-lauryl, 1-myristyl, 1-cetyl and 1-stearyl. Especially 1-octyl, 1-decyl, 1-lauryl, 1-myristyl are preferred. When used like this "Oxo-alcohols" as starting materials predominate compounds with an odd number of carbon atoms in the alkyl chain.

The alkyl glycosides which can be used according to the invention can contain only one contain certain alkyl radical R. Usually these connections but based on natural fats and oils or mineral oils poses. In this case, the alkyl radicals R are mixtures corresponding to Starting compounds or according to the respective processing of these Connections before.

Alkylpolyglycosides in which R

• - essentially from C₈ and C₁₀ alkyl groups,
• - essentially from C₁₂- and C₁₄-alkyl groups,  
• - Essentially from C₈ to C₁₆ alkyl groups or
• - consists essentially of C₁2 to C₁₆ alkyl groups.

Any mono- or oligosaccharides can be used as the sugar building block Z. be set. Usually sugars with 5 or 6 carbon atoms as well as the corresponding oligosaccharides. Such sugars are for example glucose, fructose, galactose, arabinose, ribose, xylose, Lyxose, allose, old rose, mannose, gulose, idose, talose and sucrose. Be preferred sugar components are glucose, fructose, galactose, arabinose and Sucrose; Glucose is particularly preferred.

The alkyl polyglycosides which can be used according to the invention contain on average 1.1 to 5 sugar units. Alkyl glycosides with x values from 1.1 to 2 are prefers. Alkyl glycosides in which x 1.1 are very particularly preferred is up to 1.4.

The alkoxylated homologs of the alkyl polyglycosides mentioned can also are used according to the invention. These homologues can be average up to 10 ethylene oxide and / or propylene oxide units per alkyl glycoside unit included. These products usually don't hire either uniform connections, but point depending on the ge chose an appropriate homolog distribution for ethoxylation processes on. Such alkoxylated compounds can, for example, thereby will keep that for the synthesis of alkyl polyglycosides ethoxylated fat alcohols are used. In the context of the teaching of the invention However, use of the non-alkoxylated compounds is preferred.

The pearlescent concentrates according to the invention contain in a preferred Embodiment alkyl polyglycosides as the only emulsifiers. It has However, it has been shown that further emulsifiers in amounts of up to 100% by weight, in particular up to 50 wt .-%, based on the amount of alkyl polyglyko sids of formula (II), can be included without the appearance of Pearlescent change noticeably. These emulsifiers can be anionic, nonionic, cationic, zwitterionic and ampholytic Act emulsifiers. Nonionic and anionic are particularly suitable emulsifiers.  

Suitable anionic emulsifiers in preparations according to the invention all anionic suitable for use on the human body surfactants. These are characterized by a water solution Lich making, anionic group such. B. a carboxylate, sulfate, sul fonate or phosphate group and a lipophilic alkyl group with about 10 to 22 carbon atoms. In addition, glycol or polyglycol ether Contain groups, ester, ether and amide groups and hydroxyl groups his. Examples of suitable anionic surfactants are in the form of Sodium, potassium and ammonium as well as mono-, di- and trialkanolammo nium salts with 2 or 3 carbon atoms in the alkanol group,

• - linear fatty acids with 10 to 22 carbon atoms (soaps),
• Ether carboxylic acids of the formula RO- (CH₂-CH₂O) _x -CH₂-COOH, in which R is a linear alkyl group with 10 to 22 C atoms and x is 0 or 1 to 16,
• Acyl sarcosides with 10 to 18 carbon atoms in the acyl group,
• Acyl taurides with 10 to 18 carbon atoms in the acyl group,
• Acyl isethionates with 10 to 18 carbon atoms in the acyl group,
• - Sulphosuccinic acid mono- and dialkyl esters with 8 to 18 carbon atoms in the alkyl group and sulfosuccinic acid mono-alkyl polyoxyethyl with 8 to 18 carbon atoms in the alkyl group and 1 to 6 oxyethyl groups,
• linear alkanesulfonates with 12 to 18 carbon atoms,
• linear alpha-olefin sulfonates with 12 to 18 carbon atoms,
• - Alpha-sulfofatty acid methyl esters of fatty acids with 12 to 18 carbon atoms,
• Alkyl sulfates and alkyl polyglycol ether sulfates of the formula RO (CH₂-CH₂O) _x -OSO₃H, in which R is a preferably linear alkyl group having 10 to 18 carbon atoms and x = 0 or 1 to 12,
• Mixtures of surface-active hydroxysulfonates according to DE-A-37 25 030,
• - Sulphated hydroxyalkyl polyethylene and / or hydroxyalkylene propylene glycol ether according to DE-A-37 23 354,
• - Sulfonates of unsaturated fatty acids with 12 to 24 carbon atoms and 1 to 6 Double bonds according to DE-A-39 26 344,
• - esters of tartaric acid and citric acid with alcohols, the addition products of about 2-15 molecules of ethylene oxide and / or propylene oxide Represent fatty alcohols with 8 to 22 carbon atoms.

Preferred anionic emulsifiers are alkyl sulfates, alkyl polyglycol ethers sulfates and ether carboxylic acids with 10 to 18 carbon atoms in the alkyl group and up to 12 glycol ether groups in the molecule, as well as sulfosuccinic acid mono- and dialkyl esters with 8 to 18 carbon atoms in the alkyl group and sul mono-alkyl polyoxyethylsuccinate with 8 to 18 carbon atoms in the Alkyl group and 1 to 6 oxyethyl groups.

Such surfactants are used as zwitterionic emulsifiers dations that have at least one quaternary ammonium group in the molecule and carry at least one -COO (⁻) - or SO₃ (⁻) group. Particularly suitable nete zwitterionic emulsifiers are so-called betaines like that N-alkyl-N, N-dimethylammonium glycinate, for example cocoalkyl-di methylammonium glycinate, N-acylaminopropyl-N, N-dimethylammoniumglycinate, for example cocoacylaminopropyl dimethylammonium glycinate, and 2- Alkyl-3-carboxymethyl-3-hydroxyethyl-imidazolines each with 8 to 18 C- Atoms in the alkyl or acyl group as well as the cocoacylaminoethylhydroxy ethyl carboxymethyl glycinate. A preferred zwitterionic emulsifier is the fatty acid known under the CTFA name Cocamidopropyl Betaine amide derivative.

Ampholytic emulsifiers are surface-active compounds which, in addition to a C₈-C₁₈ alkyl or acyl group in the mole, contain at least one free amino group and at least one -COOH or -SO₃H group and are capable of forming internal salts. Examples of suitable ampholytic emulsifiers are N-alkylglycine, N-alkylpropionic acid, N-alkylaminobutyric acid, N-alkyliminodipropionic acid, N-hydroxyethyl-N-alkylamidopropylglycine, N-alkyltaurine, N-alkyl sarco sine, 2-alkylaminopropionic acid and alkylaminoacetic acid each with about 8 to 18 C atoms in the alkyl group. Particularly preferred ampholytic emulsifiers are N-cocoalkylaminopropionate, cocoacylaminoethyl aminopropionate and C _12-18 acyl sarcosine.

Non-ionic emulsifiers contain z. B. a poly oil group, a polyalkylene glycol ether group or a combination of Po lyol and polyglycol ether group. Such connections are, for example

• - Addition products of 2 to 30 moles of ethylene oxide and / or 0 to 5 moles Propylene oxide on linear fatty alcohols with 8 to 22 carbon atoms, on fat acids with 12 to 22 carbon atoms and alkylphenols with 8 to 15 carbon atoms men in the alkyl group,
• - C₁₂-C₂₂ fatty acid monoesters and diesters of addition products from 1 to 30 moles of ethylene oxide to glycerol,
• - Adducts of 5 to 60 moles of ethylene oxide with castor oil and ge hardened castor oil,
• - Addition products of ethylene oxide with sorbitan fatty acid esters
• - Addition products of ethylene oxide with fatty acid alkanolamides.

Examples of those which can be used in the pearlescent compositions according to the invention cationic emulsifiers are especially quaternary ammonium compounds. Ammonium halides such as alkyltrimethylammonium chlorides, Di are preferred alkyldimethylammonium chlorides and trialkylmethylammonium chlorides, e.g. B. Cetyltrimethylammonium chloride, stearyltrimethylammonium chloride, distea ryldimethylammonium chloride, lauryldimethylammonium chloride, lauryldimethyl benzylammonium chloride and tricetylmethylammonium chloride. More inventions Cationic emulsifiers which can be used according to the invention are:

• - Alkylamidoamines, especially fatty acid amidoamines like that under the Name Tego AmidMS 18 available stearylamidopropyldimethylamine,
• - Quaternary ester compounds, so-called "esterquats", such as those under Dialkylammonium methosulfate sold under the Stepantex® trademark and methyl-hydroxyalkyl-dialkoyloxyalkyl-ammonium methosulfates.
• - quaternized protein hydrolyzates.
• - Quaternary sugar derivatives such as the commercial product Glucquat®100, according to CTFA nomenclature a "Lauryl Methyl Gluceth-10 Hydroxypropyl Dimonium Chlorides ".

With the compounds with alkyl groups used as emulsifiers, it can are each a uniform substance. However, it is in the Re gel preferred in the manufacture of these substances from native vegetable or animal raw materials, so that you can mix substances with un  different alkyl chain lengths depending on the respective raw material holds.

In the case of the emulsifiers, the addition products of ethylene and / or propy lenoxid to fatty alcohols or derivatives of these addition products len, products with a "normal" homolog distribution as well even those with a narrow homolog distribution can be used. Mixtures of homologs are called "normal" homolog distribution understood that one in the implementation of fatty alcohol and alkylene oxide un ter use of alkali metals, alkali metal hydroxides or alkali tall alcoholates obtained as catalysts. Narrated homolog distributions on the other hand are obtained when, for example, hydrotalcites, alkaline earths tall salts of ether carboxylic acids, alkaline earth metal oxides, hydroxides or alcoholates can be used as catalysts. The use of produc with a narrow homolog distribution may be preferred.

Pearlescent concentrates according to the invention preferably contain 10-40% by weight. of pearlescent components and 5 - 55% by weight of emulsifiers, each because based on the entire pearlescent concentrate.

Pearlescent concentrates with 20-40% by weight of pearlescent components and 5-15% by weight of emulsifiers, based in each case on the entire concentrate have particularly excellent properties.

Furthermore, the pearlescent concentrates according to the invention can be desired if they contain a low molecular weight, polyhydric alcohol.

A group of preferably used low molecular weight, polyhydric alcohol le contain 2-12 carbon atoms and 2-10 hydroxyl groups. Such alko holes are, for example, ethylene glycol, 1,2- and 1,3-propylene glycol, Gly cerin, erythritol, arabitol, adonite, xylitol, sorbitol, mannitol, dulcitol, glucose and sucrose. The use of glycerin, 1,2-propylene glycol, 1,3-pro pylene glycol, sorbitol and / or glucose is particularly preferred.

The use of glycerin as a low molecular weight, polyhydric alcohol leads to pearlescent concentrates that make the end products particularly bright Give lanten pearlescent.  

Another group of preferably used low molecular weight, multivalent Alcohols are oligomeric ethers, especially those based on ethylene glycol kol, propylene glycol and glycerin. Above all, such products suitable, whose average molecular weight is below about 700 daltons. In front especially the di-, tri- and tetramers of ethylene glycol and glycerin usable according to the invention.

The low molecular weight, polyhydric alcohols are according to the invention preferably in amounts of 0.1 to 25% by weight, in particular in amounts of 0.1 up to 15% by weight, based on the entire preparation.

In addition, the pearlescent concentrates according to the invention essentially contain water.

Buffer substances can also be used in small quantities development of the pH to values between 2 and 8, z. B. citric acid and / or sodium citrate, and also inorganic salts, for example sodium chloride, as a thickener.

In a first, preferred embodiment, the invention Pearlescent concentrates with the usual preserves known to those skilled in the art provided. Such preservatives are, for example Formic acid, benzoic acid and pHB ester.

In a second preferred embodiment, the pearlescent concentrates are free of preservatives. Under preservative free in this Understand pearlescent concentrates that have no preservation agents were added. They therefore preferably do not contain any preserve agents or preservatives only in such amounts as they are due to the selected individual raw materials.

The pearlescent concentrates according to the invention are at least in one temperature raturation range of 5-40 ° C very well pumpable and over a longer period space, d. H. at least 12 months, stable in storage.  

The pearlescent concentrates according to the invention can thus be prepared conditions that components (A), (B) and (C) initially together on a Tem temperature to be heated, which is about 1 to 30 ° C above the melting point lies. In most cases this will be a temperature of around 60 to 90 ° C. Then this mixture becomes about the same temp heated water added. If an ionic, water-soluble emulsifier is used, it may be preferred this dissolve in the water phase and together with the water in the mixture bring in. The aqueous phase may already have the puff dissolved in dissolved substances. The resulting dispersion is then under constant stirring to room temperature, d. H. cooled to about 25 ° C. The The viscosity of the pearlescent concentrate is so in most cases low that on the use of special stirring units such as homogenizers or other high-speed mixing devices can be dispensed with.

The pearlescent concentrates according to the invention are suitable for production cloudy and pearlescent liquid, aqueous preparations water-soluble of surface-active substances. You can e.g. B. in liquid washing and Detergents such as detergents, liquid mild detergents and liquid Soaps, but preferably in liquid body cleaning and care products such as e.g. B. shampoos, liquid hand and body wash, Shower bath preparations, bath additives (foam baths), hair rinsing agents or Hair dye preparations are incorporated.

To produce pearlescent, the clear aqueous preparations at 0 up to 40 ° C the pearlescent concentrates according to the invention in an amount of 1 up to 10% by weight, in particular 1.5 to 5% by weight, of the preparation and distributed in it with stirring. Depending on the preparation and usage concentration a metallic shiny, dense to slightly shiny, extremely dense pearlescent.

The following examples are intended to explain the subject of the invention in more detail, without limiting him to it.  

Examples 1. Pearlescent concentrates

There were pearlescent concentrates together with those listed in Table 1 settlements made.

Table 1

Flowable pearlescent concentrates

1) Mixture containing
approx. 10% by weight of C _16/18 alkyl ethylene glycol monoester,
- About 46 wt .-% C _16/18 alkyl ethylene glycol diesters with the same alkyl groups and
- Approx. 44% by weight of C _16/18 alkyl ethylene glycol diester with different alkyl groups
²) Mixture containing
30% by weight of C _16/18 alkyl ethylene glycol monoester,
- Approx. 36% by weight of C _16/18 alkyl ethylene glycol diesters with the same alkyl groups and
- Approx. 34% by weight of C _16/18 alkyl ethylene glycol diester with different alkyl groups
³) Coconut fatty acid monoethanolamide (approx. 95% amide; CTFA name:
Cocamide MEA) (HENKEL)
Composition of the fatty acid: approx. 56% lauric acid
approx. 21% myristic acid
approx. 10% palmitic acid
approx. 13% stearic acid and
Oleic acid
⁴) C₁₆-C₁₈ fatty acid (CTFA name: Palmitic Acid (and) Stearic Acid) (HENKEL)
⁵) C₁₂-C₁₆ fatty alcohol-1,4-glucoside (approx. 50% active substance in water; CTFA name: Lauryl Polyglycose) (HENKEL CORP.)
⁶) C₁₂-C₁₄ fatty alcohol + 4 ethylene oxide (HENKEL)
⁷) Sodium lauryl ether sulfate (approx. 72% active substance in water; CTFA name: Sodium Laureth Sulfate) (HENKEL).
⁸) Polyol fatty acid ester (CTFA name: PEG-7-Glyceryl Cocoate) (HENKEL)
⁹) 86% in water

Claims (15)

1. pearlescent concentrate in the form of an aqueous dispersion of pearlescent components and emulsifiers, characterized in that

• - The pearlescent components are compounds of formula (I), R¹-O-CH₂-CH₂-O-R² (I) in the R¹ is a linear fatty acyl group with 16 or 18 carbon atoms and R² is hydrogen or a group R¹ with the proviso that there is a product in which
• - less than 40% of the groups R² are hydrogen and
• in 30 to 60% of the compounds in which R² is not hydrogen, R¹ and R² stand for the same fatty acyl groups,
• - And as emulsifiers alkyl polyglycosides of the general formula (II), RO- (Z) _x (II) in which R stands for an alkyl radical having 6 to 22 carbon atoms, Z for a mono- or oligosaccharide, x for a number of 1.1 to 5, or their adducts with 1 to 10 molecules of ethylene oxide and / or propylene oxide are contained.

2. pearlescent concentrate according to claim 1, characterized in that in of the formula (II) Z for glucose and x for a number between 1.1 and 2, stands in particular for a number between 1.1 and 1.4. 3. Pearlescent concentrate according to one of claims 1 or 2, characterized records that other pearlescent components in amounts up to 100 wt .-%, in particular up to 50 wt .-%, based on the connection gene of formula (I) are included.   4. Pearlescent concentrate according to one of claims 1 to 3, characterized records that there are 10 to 40 wt .-% of pearlescent components and contains 5-55% by weight of emulsifiers. 5. pearlescent concentrate according to one of claims 1 to 4, characterized records that there are 20 to 40 wt .-% of pearlescent components and contains 5 to 15% by weight of emulsifiers. 6. pearlescent concentrate according to one of claims 1 to 5, characterized records that further emulsifiers in amounts of up to 100 wt .-%, based on the amount of the alkyl polyglycoside of the formula (II) are. 7. pearlescent concentrate according to claim 6, characterized in that this other emulsifiers are anionic or nonionic. 8. pearlescent concentrate according to one of claims 1 to 7, characterized records that it also has a low molecular weight, polyvalent Al contains alcohol. 9. pearlescent concentrate according to claim 8, characterized in that the low molecular weight, polyhydric alcohol in amounts of 0.1 to 25% by weight, based on the entire preparation. 10. pearlescent concentrate according to one of claims 8 or 9 characterized thereby records that the low molecular weight, polyhydric alcohol 2 to 12 C- Contains atoms and 2 to 10 hydroxyl groups. 11. pearlescent concentrate according to claim 10, characterized in that the low molecular weight, polyhydric alcohol is selected from the group which consist of the substances glycerol, 1,2-propylene glycol, 1,3-propylene glycol kol, glucose and sorbitol. 12. Pearlescent concentrate according to one of claims 7 or 8, characterized records that the low molecular weight polyhydric alcohol is selected from polyethylene glycols, polypropylene glycols and polyglycerols with an average molecular weight below 700 daltons.   13. Process for the production of pearlescent concentrates according to one of the Claims 1 to 12, characterized in that a mixture of Components (A), (B) and (C) heated to a temperature that is 1 to 30 ° C is above the melting point of the mixture, with the necessary Mix amount of water at about the same temperature and then mix on Cools down to room temperature. 14. Use of pearlescent concentrates according to one of claims 1 to 12 in an amount of 0.5 to 10% by weight, in particular 1.5 to 5 Wt .-%, for the production of cloudy and pearlescent liquid, aq preparations of water-soluble surfactants. 15. Process for the preparation of cloudy and pearlescent liquid, aq thereby preparations of water-soluble surface-active substances characterized in that the clear aqueous preparations at 0 to 40 ° C. Pearlescent concentrates according to one of claims 1 to 12 in one Amount of 0.5 to 10 wt .-%, in particular from 1.5 to 5 wt .-%, the Add the preparation and distribute it while stirring.