DE1081172B - Liquid detergent - Google Patents

Description

GERMAN

The invention relates to a liquid, anionic, organic, synthetic cleaning agent with a desirable pearlescent or pearly appearance without the use of opacifiers Agents - hereinafter referred to as "matting agents" - that improve stability or cleaning power affect unfavorably. According to the invention, the matting agent consists essentially of suspended crystals of an undissolved portion of an anionic, organic, synthetic detergent and thus increases the detergency of the composition rather than being detrimental to it is.

Translucent and see-through liquid synthetic detergents are common in the industry. However, from a consumer point of view, it has been found desirable to develop an effective opaque product which has the appearance of liquefied white or colored bar soap. The Undurchsichtig- ^ao ness makes a liquid product for the buyer more responsive, which brings the opacity with his favorite bar of soap, soap powder or hand lotion in connection to which he has become accustomed over the years. A translucent or translucent product does not have this particular responsiveness.

In previous attempts to make opaque liquid soaps, inorganic solids have been found or dispersible organic solids or liquids are used which, however, have the detergency not increased and in most cases even disturbed and unstable towards phase separation Products. There is therefore a need for a mild, strong foaming, good cleaning, concentrated, liquid, opaque, synthetic detergent with favorable physical Properties.

A common method of achieving opacity in liquids is through use finely divided, insoluble solids. These solids are dispersed in the liquid product and almost always interfere with the foaming capacity. In a z. B. intended for dishwashing A good foaming power and a stable foam are important for the product, since the housewife the Foaming tends to equate the cleaning effect and foaming as a sign of the The presence of effective detergent ingredients evaluates. In the case of fatty acid soaps, there is foam formation actually a function of the cleaning power, where on the other hand the synthetic detergents commonly used today do not require foaming for a good cleaning effect. Because of the association of thoughts Liquid detergent

Applicant:

The Procter & Gamble Company,
Cincinnati, Ohio (V. St. A.)

Representative:

Dipl.-Ing. E. Prince and Dr. rer. nat. G. Hauser,
Patent attorneys, Munich-Pasing, Bodenseestr. 3 a

Claimed priority:
V. St. v. America April 16, 1957

William Clarence Krumrei, Wyoming, Ohio,

and Joseph Blinka, Cincinnati, Ohio (V. St. A.),

have been named as inventors

good foaming with good cleaning power should, however, be well foaming, synthetic cleaning agents be put on the market. One that prevents foaming and makes it opaque Means would therefore be unsuitable as it merely yields one market characteristic at the expense of another would. Usual matting agents such as finely divided organic solids, e.g. B. wax or stearic acid, and organic liquids, ζ. B. emulsified fats or oils, interfere with the foaming ability of the Detergent. Inactive, opacifying particles are like dirt particles that make up the detergent should remove from the fabric, which is why in this case the actual consumption of detergent increases. Although some substances, e.g. B. wax that favor blistering, these are Bubbles are short-lived and unsuitable for foaming when washing dishes or laundry. Opaque liquids are also difficult to extract from the aforementioned matting agents obtained as the solids are often ground very finely and in the form of a paste in the liquid must be introduced. Fine grinding is difficult for some solids, but is often essential, to reduce phase separation due to gravity. Many of the commonly used Matting agents such as titanium oxide and bentonite have a higher specific weight than the carrier, in which they will be suspended. This increases the tendency to settle. So an opaque one

009 508/390

3 4

If product is also successful, it must be very natural when standing, which is about 25 to about 85%

be stable. Liquid according to the invention containing water

Detergent compositions exposed to high competition in use Product, e.g. B. in detergents for the household, is diluted, namely for the preparation of the usual looks important. As pearls and mother-of-pearl with 5 washing solutions by two hundred or more times. Goodness, high value and quality are equated, this dilution is sufficient to an almost fully a pearly appearance and a silky shine for permanent dissolution of the suspended matting to strive for a product. Although impenetrable from when the temperature of the washing water visibility and opalescence give a pleasing appearance within what is normally used, the product must also be in the same temperature range, i. H. between about meet other requirements, d. i.e., it must have a 32 and about 54 ° C. Dissolves during its use have uniform composition, be stable and therefore become the matting agent and form one Foaming and cleaning power may be part of the active detergent components. Not influence. probably to achieve maximum cleaning power

The invention is based on the fact that suspended 15 a complete solution of the alkyl glyceryl ether

Crystals of salts of alkyl glyceryl ether sulfonates sulfonate matting agent was beneficial, however

concentrated liquid, synthetic cleaning agent observed that also undissolved matting agent

medium solutions a desirable opaque medium does not behave completely inert, but rather

give strength. According to the invention, therefore, it contains the foaming ability during washing

aqueous solution of the synthetic detergent 20 increased.

in suspension an alkali metal salt, e.g. B. a sodium The virtually insoluble alkyl glyceryl ether sulfonate or potassium salt of an alkylene glyceryl ether sulfonate are those with chain lengths of the alkyl groups from about 16 to about 18 carbon atoms in the alkyl from about C ₁₆ to about C ₁₈ . Alkyl glyceryl ether sulfonates radical. Salts acting as electrolytes, which are generally anionic, organic sulfuric acid reaction products with 14 or fewer carbon atoms in the alkyl group, are highly soluble for use as matting agents, together with conventional water-soluble products, but are to a large extent accompanying as organic solvents, If necessary, completely dissolved primary cleaning agents can also be present in the cleaning agent solutions, part of the combination according to the invention, as will be explained in more detail below. Settlements used.

The matting agent is usually thereby 30 To achieve the opalescence in the opalescent Detergent solutions suspended that one can see compositions according to the invention first a suitable alkyl glyceryl ether sulfonate was found to be at least 2 percent by weight The detergent solution dissolves at a temperature containing alkyl glyceryl ether sulfonate with alkyl chains in which the sulfonate may be present in almost completely soluble 14 carbon atoms or less is what you need to bring the solution to a temperature and 35. This proportion of the more soluble alkyl was expediently room temperature, cools, with glyceryl ether sulfonates is to achieve a softer the alkyl glyceryl ether sulfonate essentially th crystal growth and orientation of the is insoluble. During the cooling of the solution, suspended, precipitated, opaque precipitated the alkyl glyceryl ether sulfonate required in the form of finer crystals.

Crystals in the detergent solution 4 ° According to the invention, only one remain suspended and the product is a mother-of-pearl alkyl glyceryl ether sulfonate with an alkyl radical give like opacity. An alignment with 16 or 18 carbon atoms can be used; of precipitated crystals and a light crystal - usually advisable, however, for cost growth often cause opalescence, which justifies the use of a mixture of these the matte, opaque appearance still promotes. 45 compounds in which the alkyl radicals from easily A suitable composition can also come from fatty alcohol mixtures that are accessible as a result. the be obtained that the alkyl glyceryl ether obtained in the reduction of sebum is higher Sulphonate is ground very finely in a colloid mill and alcohols form a preferred source for that then these particles in the detergent solution, matting agent used according to the invention, there at z. B. room temperature, suitably 5 ° they have predominantly 16 and 18 carbon atoms, suspended. Another source is the higher molecular one

The specific gravity of the fraction of coconut oil or palm kernel oil according to the invention

alkylglyceryl ether- obtained fatty alcohol mixture used as matting agent. Such mixtures

sulfonate is about 1.25 and is only slightly higher, are usually fractionated in the industry,

as the specific gravity of the detergent solution 55, where a predominantly C ₁₂ - and C ₁₄ -

(about 1.02 to 1.20). There is therefore hardly a fraction existing in alcohol that is given to

Tendency to phase separate due to the difficult production of the more soluble synthetic

Kraft, which is usually exceptionally well suited when using conventional cleaning agents. A

Matting agent with major difference in by-product of this fractionation is one

specific gravity occurs. ^6tl mixture with predominantly C ₁₆ and C ₁₈ alcohols.

Although the matting agent is almost too insoluble in the concentrating These latter mixtures can be used as alkyl radical cleaning agent solutions at room temperature for the preparation of the inventive mat, but it dissolves when diluting.
of the cleaning agent solution to the anionic, synthetic pure nitrate ions usually used according to the invention as the main cleaning agent component in washing. The matting agents used according to the invention are the stabilizing agents almost at room temperature and thus have the additional pre-completely water-soluble alkali metal salts (part of the fact that they ultimately act as a cleaning agent as the ammonium salts) of organic sulfur and approximately increase the overall cleaning power of the product acid reaction products with alkyl radicals. 7 ° 8 to about 18 carbon atoms and sulfonic acid

and sulfuric acid ester radicals in the molecule. The alkali metal salts of the sulfuric acid reaction products, which are most widely used are those having 10-14 carbon atoms and predominantly 12 carbon atoms in the alkyl radical. However, since the detergent molecule has other Substituents to increase the degree of solubility may contain the number of carbon atoms in the alkyl radical in certain cases e.g. B. up to 18. Important examples of synthetic cleaning agents to be used according to the invention are the sodium or potassium lauryl glyceryl ether sulfonates; Sodium or potassium alkylbenzenesulfonates, in which the alkyl groups contain from about 9 to about 15 carbon atoms; Sodium, potassium or ammonium alkyl sulfates, especially those obtained by sulfurization of higher alcohols the reduction of glycerides of coconut oil were obtained; Sodium Coconut Oil Fatty Acid Monoglyceride Sulphates and sulfonates; Sodium, potassium and ammonium salts of sulfuric acid esters of the reaction product from 1 mole of coconut fatty alcohol and about 3 moles of ethylene oxide or of

1 mole of tallow fatty alcohol and about 10 moles of ethylene oxide; Alkali metal salts of alkyl ethylene oxide ether sulfate, with an average of one ethylene oxide unit per molecule; the reduction product of with ethylenehydrinsulfonic acid esterified fatty acids that have been neutralized with sodium hydroxide, when the fatty acids are e.g. Derived from coconut oil; Alkali metal salts of Fettsäureami a methyl taurine, the fatty acids z. B. come from coconut oil. Further examples of synthetic detergents to be used according to the invention are e.g. Am U.S. Patents 2,396,278, 2,486,921 and

2,486,922.

These are preferred as the main active detergent ingredient in the compositions of the invention The synthetic cleaning agents used include the water-soluble alkali salts, z. B. the sodium, potassium or Ammoniumalkyläthylenoxydäthersulfate with an average of 3 ethylene oxide units per molecule, alkyl sulfates, alkyl glyceryl ether sulfonates and alkylbenzenesulfonates and mixtures thereof. The main synthetic detergent ingredient can be present in the liquid compositions according to the invention in an amount of about 5 to 45 percent by weight, although about 15 to 30 weight percent is preferred.

There is so much of the matting agent forming alkyl glyceryl ether sulfonate in one heated Detergent mixture dissolved that 0.5 to about 10 percent by weight is insoluble at room temperature stay. To achieve a satisfactorily opaque product, 0.5 percent by weight is required the matting agent a minimum; Heating to around 35 ° C solves this in such concentrations Matting agents. The presence of about 3% of the room temperature insoluble matting agent is preferred to achieve an opaque product up to about 43 ° C. Above at this temperature, this amount of matting agent dissolves completely. The upper limit of the The matting agent content is not important and can be up to about 10% or more in accordance with the invention use, although to dissolve such amounts of matting agents, a heating of the liquid Detergent composition to about 82 ° C and higher is required. Although other components the composition according to the invention often has a readily solubilizing effect on the matting agent exercise only needs so much of the substantially insoluble alkyl glyceryl ether sulfonate to be added that at least about 0.5% at room temperature; H. usually at on average about 27 ° C, in the form of undissolved, suspended crystals.

When the amounts of the matting agent and the active synthetic used in the present invention Detergents produce a thick or viscous product when simply diluted with water it is often expedient to mix it with a suitable water-soluble organic solvent. Ethanol, propanol, isopropanol, ethylene glycol and propylene glycol are suitable for this purpose, and the amounts used vary between about 0 and about 25 percent by weight of the Composition, typically between about 3 and 20 percent by weight. Also up to about 5% sodium or Potassium toluene or benzene sulfonate can be used together with the solvents mentioned above be used.

The use of water-soluble organic solvents also increases the solubility of the active ones synthetic detergent ingredients in water, the solubility being almost proportional to the The amount of solvent used increases. So is z. B. the practical solubility limit more common active, synthetic detergent salts in water alone at about 25%. However, if you give about 25% one of the aforementioned water-soluble, organic solvents to, so can up to about 45% of these detergent salts are used in the liquid compositions according to the invention will.

Satisfactory viscosities of the liquid compositions according to the invention are between about 150 and about 300 ocP at room temperature. Preferred viscosities are at room temperature about 200 to 800 cps.

The crystals of the alkyl glyceryl ether sulfonate suspended in the compositions according to the invention are extremely stable against phase separation due to gravity. The slope of the Crystals to settle can e.g. B, can be reduced by the specific gravity of the solution or that the matting agent is dispersed in extremely finely divided crystalline form.

The specific gravity of the solution can be determined by adding sodium salts, e.g. B. sodium chloride, Sodium sulfate, sodium acetate, or other salts compatible with the composition ”. This way the difference between the specific gravity of the solution and that becomes of the suspended crystals decreased. The salts can be added in such amounts until their Solubility limit in the detergent composition is reached. There is a certain amount of salt in composition as resulting from the manufacture of the synthetic detergent Byproducts. Further salts can be added. Sodium sulfate is one of the least soluble salts (about 6% at room temperature), mixtures thereof with other, more soluble salts however, allow an electrolyte content in the compositions of about 2 to 15 percent by weight. With similar results, corresponding potassium salts can be used together with Potassium salts of matting agent and synthetic detergent can be used.

The presence of electrolyte in the warm, clear detergent solution increases the tendency the matting agent to form fine, essentially insoluble crystals on cooling. A high The rate of cooling also gives finer crystals of the suspended alkyl glyceryl ether sulfonate.

To produce the mixture, it only needs to be heated to such a high temperature that all of the matting agent is dissolved. 49 to 71 ° C are usually sufficient. A cool down allowing the mixture to stand at room temperature is sufficient to obtain a sufficiently opaque one Product, although finer crystals are obtained when the mixture is in a heat exchanger, is cooled in particular in one equipped with a mechanical agitator.

Examples of additives to be used according to the invention, which have a stabilizing effect on the Applying foam, but not forming an essential part of the compositions, are those Mono- and diethanolamides of coconut oil fatty acids.

The following examples illustrate the invention. All parts mean parts by weight.

example 1

3 moles of ethylene oxide were mixed with 1 mole of a middle fraction implemented by coconut oil fatty alcohols, the latter containing about 65% dodecanol and otherwise essentially consisted of fatty alcohols with 14 to 16 carbon atoms. The reaction product was sulfated with chlorosulfonic acid and then neutralized with caustic soda. The received Alkyl ethylene oxide ether sulfate had an average of 3 ethylene oxide units per molecule.

The same middle fraction of coconut oil alcohols was reacted with a 15% excess of epichlorohydrin. The chloroglyceryl ether formed in the process was sulfonated with sodium sulfite, using the sodium salt of an alkyl glyceryl ether sulfonate received.

The sodium salt of a tallow alkyl glyceryl ether sulfonate was prepared according to the procedure described above using a fatty alcohol _{mixture obtained by reducing tallow and containing about 65% C 18} alcohol, about 33% C _le alcohol and about 2% C ₁₄ alcohol.

Dissolving the following amounts of the ingredients in water at about 49 ° C gave a liquid detergent:

20.0 parts of the sodium salt of alkylethylene oxide ether sulfate, prepared using the middle fraction of coconut oil alcohols,

4.0 parts of the sodium salt of alkyl glyceryl ether sulfonate, made using the middle fraction of coconut oil alcohol,

2.5 parts of the sodium salt of alkyl glyceryl ether sulfonate, prepared using of sebum alcohol,

3.0 parts of monoethanolamide of coconut oil fatty acids,

7.0 parts of ethanol,

1.5 parts sodium chloride,

6.0 parts of sodium sulfate,
56.0 parts of water up to 100 parts.

After all the components had completely dissolved, the composition was quickly cooled to about 2 ° C, by passing them through a heat exchanger fitted with a mechanical stirrer. It does not have to be cooled down to 2 ° C. If you send the cleaning agent solution through a heat exchanger, so that the temperature quickly rises to room temperature, i.e. H. about 27 ° C, cooled, achieved you also have a good appearance and a stable solution.

The above composition worked very well

ίο good for washing dishes and for washing finer Fabric in terms of foam generation and detergency and possessed the desired pearly opacity and opalescence.

When the alkyl glyceryl ether sulfonate was prepared _{using only C 18 fatty alcohol or C 16} fatty alcohol in place of the tallow fatty alcohol mixture in the above example, essentially the same results were obtained.

Example 2

The following ingredients were prepared in the same manner as in Example 1 and in the below given amount dissolved in about 54 ° C warm water. The sodium alkyl glyceryl ether sulfonates given below were obtained according to the method described in Example 1:

19.70 parts of the sodium salt of alkyl ethylene oxide ether sulfate, made using the middle fraction of coconut

nut oil alcohol as in example 1,

2.95 parts of monoethanolamide of coconut oil fatty acids,

3.09 parts of the sodium salt of alkyl glyceryl ether sulfonate, prepared using a fractionated mixture of coconut fatty alcohols containing about 65% C ₁₂ , 20% C ₁₄ and 15% C ₁₆ alcohols,

4.92 parts of propylene glycol,

4.92 parts of ethanol,

2.95 parts of sodium alkyl glyceryl ether sulfonate, prepared using a mixture of C ₁₆ and C ₁₈ alcohols, which were obtained as a high-boiling fraction in the fractionation of a mixture of coconut oil alcohols,
10.00 parts of a mixture of sodium chloride and sodium sulfate,
51.47 parts of water up to 100 parts.

This composition was placed in a heat exchanger equipped with a mechanical stirrer to room temperature, d. H. about 27 ° C, cooled and possessed good cleaning power and good foaming capacity and the desired opaque, opalescent appearance.

Example 3

The following ingredients were heated to about 71 ° C in the amounts indicated below Dissolved in water. The sodium alkyl glyceryl ether sulfonate made using tallow fatty alcohol was produced as in Example 1.

37 parts of the ammonium salt of the sulfated

Middle fraction of coconut oil alcohols,

containing 65% dodecanol and im

the remaining essentially C ₁₄ and C ₁₆ alcohols,

12 parts of monoethanolamide of coconut fatty acids,

18 parts of ethanol,

6 parts of sodium alkyl glyceryl ether sulfonate prepared using tallow fatty alcohol as in example 1,

2 parts of a mixture of sodium chloride and sodium sulfate, which is used in the synthetic detergent was included, ίο

25 parts of water up to 100 parts.

This composition was excellent in detergency and foaming ability and a white opaque appearance. If the ethanol is replaced by propanol, essentially the same results are obtained.

Example 6 Example 4

20th

40

The following ingredients were dissolved in the following amount of 49 ° C water. The sodium alkyl glyceryl ether sulfonate was prepared using fatty alcohols obtained by reducing tallow and containing about 65% C ₁₈ , 33% C ₁₆ and 2% C _{14 alcohols.}

18.0 parts of sodium polypropylene benzene sulfonate, the polypropylene being an average has about 12 carbon atoms,

13.0 parts of diethanolamide of coconut oil fatty acids,

19.0 parts of ethanol,
2.5 parts sodium tallow alkyl glyceryl ether sulfonate,

manufactured as in example 1,

2.0 parts of a mixture of sodium chloride and sodium sulfate used in the synthetic detergents are present,

45.5 parts of water up to 100 parts.

After cooling in a heat exchanger, the composition formed an excellent one Dishwashing detergent and had a pleasing, opaque appearance with a viscosity of about 40OcP. Substituting isopropanol for the ethanol provided essentially the same results.

Example 5

The following ingredients were added to the following amount of water at about 49 ° C and then cooled to form a white, opaque, fairly viscous, but pourable liquid which was an excellent detergent with good foaming properties. The alkyl glyceryl ether sulfonate was obtained from a mixture of fatty alcohols obtained in the reduction of coconut oil with about 65% C ₁₂ , 25% C ₁₄ and 10% ₁₆ alcohols.

15 parts of potassium alkyl glyceryl ether sulfonate,
10 parts of ethylene glycol,
73 parts of water,

2 parts potassium chloride present in the synthetic detergent used.

If 2 parts of potassium acetate or potassium sulfate were added to the composition in the above example, essentially the same results were obtained.

A composition was prepared from the following ingredients by first adding the solid constituents in the liquid constituents at a slightly elevated temperature of around 52 ° C completely dissolved and then cooled to room temperature of about 27 ° C in a heat exchanger. An opaque, opalescent product with excellent cleaning power was obtained and foaming ability.

Parts of sodium alkylethylene oxide ether sulfate, obtained by reacting 3 moles of ethylene oxide with 1 mole of fatty alcohol with about 65% C ₁₂ alkyl radicals, 20% C ₁₄ alkyl radicals and 15% C ₁₆ alkyl radicals and subsequent sulfation and neutralization of the reaction product.

Share sodium alkyl glyceryl ether sulfonate, he

keep from a mixture of fatty alcohols that were obtained from the reduction of coconut oil and contained about 90% C ₁₂ , 5% C ₁₄ and 5% C ₁₆ alkyl radicals,

Parts of sodium alkyl glyceryl ether sulfonate prepared as in Example 1 using the fatty alcohols resulting from the reduction of sebum,

Parts of monoethanolamide from coconut oil fat

acids,

Parts of sodium toluenesulfonate,
Parts of ethanol,

Parts sodium acetate,
Parts sodium chloride,

Share water.

In this example, the alkylethylene oxide ether sulfate can be used to achieve essentially the the same results are replaced by the following amounts of the compounds given below will:

and 10 parts of sodium polypropylene benzene sulfonate, as described in Example 4, and 10 parts of sodium alkylphenolethylene oxide ether sulfate with an average of 4 ethylene oxide units per molecule and about 9 carbon atoms in the alkyl radical,

and 20 parts of potassium alkylethylene ether sulfate by reaction of 1 mole of ethylene oxide with 1 mole of the fatty alcohol mixture described in Example 6,

and 10 parts of coconut oil fatty acid ester of the sodium salt of ethylene hydrin sulfonic acid, known under the trade name "Igepon AC-78", parts of the ammonium salt of as in Example 6 produced alkylethylene oxide ether sulfate.

Example 7

A liquid detergent composition was obtained by dissolving the following ingredients in water obtain:

20.0 parts of the sodium alkylethylene oxide ether sulfate described in Example 1,

OW508 / 3SO

3.0 parts of monoethanolamide of coconut oil fat

acids,

7.0 parts of ethanol,
1.5 parts of a mixture of sodium chloride and

Sodium sulphate, as it was present in the synthetic detergents used,

62.0 parts of water.

In a colloid mill were in the composition described above. at 16 ° C 4 parts to Sodium alkyl glyceryl ether sulfonate, prepared using coconut oil fatty alcohol as in the example 6, and 2.5 parts using tallow fatty alcohol according to Example 1 obtained sodium alkyl glyceryl ether sulfonate dispersed. An excellent, opaque, liquid dishwashing detergent was obtained.

Example 8

An opaque, fairly viscous, liquid ao Detergent was made by dissolving the following ingredients in about 66 ° C warm water and cooling of the composition kept at room temperature.

10 parts of the sodium ^a5 salt of alkylethylene oxide ether sulfate described in Example 1,

10 parts of the sodium described in Example 4

polypropylene benzene sulfonate,
5 parts of that described in Example 1, below

Use of sodium alkyl glyceryl ether sulfonate obtained from tallow fatty alcohol,
2 parts of a mixture of sodium chloride and sodium sulfate contained in the synthetic detergents used,

73 parts of water up to 100 parts,

35

Small amounts of fragrances and fluorescent shiners known to those skilled in the art can can be added to increase responsiveness and performance. Since the pearlescent Opacity is the main feature of the invention, dyes can be added that are pastel-colored Shades result which greatly increase the appeal of the product to the buyer can. If necessary, an anti-foaming agent can also be added, when the products are mainly intended for uses where there is excessive foaming would be bothersome.

The invention thus provides a stable, effective, high-performance detergent with a extremely attractive appearance. It is mainly used for dish washing and for washing fine fabrics intended, but can also be used as a hair shampoo and laundry detergent, as well as for other household purposes Find use.

Claims (6)

Patent claims: 1. Opaque, liquid cleaning agent, characterized by a content of a crystalline, in an aqueous solution of an anionic salt-like detergent-type substance the sulfates or sulfonates disperse alkyl glyceryl ether sulfonate, whose alkyl radicals contain 16 to 18 carbon atoms. 2. Cleaning agent according to claim 1, characterized in that the amount of the suspended Alkyl glyceryl ether sulfonate is about 0.5 to 10 percent by weight of the total detergent. 3. Cleaning agent according to claim 1 and 2, characterized in that the water-soluble anionic salt-like detergent-active substance in an amount of 5 to 45 percent by weight, preferably from 15 to 30 percent by weight based on the total detergent is present. 4. Cleaning agent according to claim 1 to 3, characterized in that the water-soluble Anionic, salt-like detergent substance of at least 2 percent by weight from an alkyl glyceryl ether sulfonate with a maximum of 14 carbon atoms in the alkyl group. 5. Cleaning agent according to claim 1 to 4, characterized in that the cleaning agent about 25 to 85 percent by weight water and about 0 to 25 percent by weight, preferably about 3 to 20 percent by weight of ethanol, propanol, isopropanol, ethylene glycol, propylene glycol or Contains mixtures thereof. 6. Cleaning agent according to claim 1 to 5, characterized by a content of 2 to 15 percent by weight of dissolved chlorides, sulfates or acetates of sodium or des Potassium. 0O9 508 / 3-90 4.60