DE2350008A1 - LIQUID, Aqueous CLEANING AGENT - Google Patents

Description

LAWYERS

DR. JUR. DIPL-CHEM. WALTER BEIL ■.

ALFRED HOHPPC- ^ ER, _n .

DR. JUR. DiPL-CHEM. Η.-! WOLFP -.4. UKt. 19/3

DR. JUR. HANS CIIR. AX

FRAN K FU RT AW MAIN - HÖCHST O Q ζ Π Π Π Ρ

ADClOHiTSACSE53 Z O OU UUO

Our no. 18 886 Ec / tk

Procter & Gamble European Technical Center B-1820 Strombeek-Beu-er'.V Belgium

Liquid, watery cleaning agent

The present invention relates to a liquid cleaning agent which contains practically no builders3 is suitable for dishwashing and cleaning hard surfaces and has an excellent cleaning effect and improved drainage behavior. In particular, the invention relates to a liquid, concentrated, aqueous cleaning agent which is used in particular for cleaning dishes, e.g. made of glass or porcelain, as well as tiles and other glazed objects and which is a water-soluble salt of a sulfuric acid ester of a reaction product from one mole of a higher fatty alcohol with about 1.5 to about 12 moles of ethylene oxide, optionally other organic, synthetic, anionic surface-active detergents and a small amount of gelatin. He inventive cleaning agent saves drying or rubbing the cleaned items with a cloth or tissue and at the same time prevents the deposition of hardening

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Components of the water on the cleaned, rinsed and air-dried items almost completely.

In recent years, liquid detergents have been found, especially those based on soap-free detergents based, for washing glasses, plates, porcelain and the like a large paragraph. you will be also often for cleaning pensters and other objects made of glass or objects with glazed surfaces, as well as used for washing cars. she are particularly suitable for cleaning these items by hand. Due to their easy and quick dispersion in the washing liquid and the ease of handling they have particular advantages over the granular, powdery, paste-like or tablet-shaped ones Products. Such cleaning agents normally contain, in addition to organic, surface-active detergents inorganic and / or organic builders to the To improve the cleaning effect of the organic detergents and / or the negative effects of water hardness to belittle. In the cleaning agents of the present invention, the addition of builders is avoided, without negatively affecting the cleaning effect. Although no builders to bind the hardening components of the water available can be washed, rinsed and air-dried Hardly any stains are found on objects due to the hardness of the water.

The quality of a dishwashing detergent is determined by the consumer normally, when washing by hand, based on the amount of foam during the washing process and based on the The shine of the cleaned and / or dried items

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rated. The liquid detergents for washing dishes by hand currently available on the market are largely constructed to contain a large amount of foam arises because the consumer associates it with a great cleaning effect. Many food returns However, stalls reduce the formation of foam and the cleaning effect in detergent solutions. The detergent residues on the cleaned items must be removed by rinsing or drying them while damp. If the objects do not dry off immediately after washing, these residues will dry on the surfaces the cleaned objects and leave stains and streaks. If hard or tap water hard-to-remove white stains remain on the surfaces of the objects due to the hardness of the water. If the items are in rinsed with clear tap water and not immediately dried off, so remain on the cleaned and dried objects also leave back stains that can be traced back to the hardening components of the water are.

Drying the cleaned items, e.g. glasses and dishes, with cloths immediately after taking them out of the Washing water has been taken out is uneconomical (a lot of water has to be removed and lots of cloths have to be used required) and not always feasible (too frequent interruption of the flushing process). So start Many housewives only dry the washed items with a cloth after the last item rinsed and removed from the detergent solution and - in some cases - rinsed. Other housewives Simply set the washed items aside to drain and air dry. Through this

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is the cleaning effect of the cleaning agent used, which the housewife may have noticed after the dishwashing process are lost and it is difficult to cause removing and unsightly surface stains and streaks or stains due to water hardness, if the rinsed items have been rinsed. As these stains in particular those caused by water hardness can hardly be removed by further rinsing processes, The glasses and other glazed objects lose their shine and are only reluctantly used.

The rinsing agents that are currently available on the market to prevent staining on glasses, tableware etc. Avoiding detergent surfactants and / or water hardness are mainly for one Intended for use in dishwashers. You need to can be used in a separate rinsing cycle after the actual rinsing or cleaning cycle, since they are completely ineffective, x ^ enn together with the Cleaning agents (detergent mixture) are needed. They also have to be packed separately as they react with the ingredients of the dishwashing detergents or cleaning agents, whereby the cleaning effect of the cleaning agent is reduced.

Contrary to the general assumption that after rinsing and Cleaning agents for dishes must be packaged and used separately, according to the invention, a permanent one aqueous, practically builder-free cleaning agent provided for dishes and similar objects with an excellent cleaning effect, the due to its improved drainage behavior after Rinsing does not leave any streaks or stains due to water hardness on the objects, regardless

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the water hardness of the cleaning water and the rinsing water.

The invention is therefore based on the object of providing a liquid, Resistant, aqueous cleaning agent, especially for use by hand, with excellent cleaning properties and to provide improved drainage behavior after rinsing, which is independent of the Water hardness of the cleaning and rinsing water causes stains on the cleaned, rinsed and on Air-dried glasses, dishes and other glass-like and glazed objects are avoided and drying with towels is not necessary.

The attraction, 'the ease of manufacture and the economy of dishwashing detergents and cleaning agents of the present invention can, and this is another advantage of the present invention, easily improved and adapted to the desired special end use, e.g. by adding highly foaming surface-active agents without losing the final gloss of the cleaned glasses, plates, etc. the The amount of customary additives, such as colorants, opacifiers and fragrances, can be increased, since none Builders are present. In addition, there are solid residues left on the cleaned after the cleaning process Objects can remain and are only partially removed by rinsing with clear tap water could be washed away by the drainage water.

The liquid detergent of the present invention, which can be used in hard water, contains

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calculated on the total weight of the product:

A. about 3 to about 45 % by weight of a water-soluble hydrocarbon sulfate of the general formula:

(I)

wherein R ^ is a saturated or unsaturated, aliphatic Hydrocarbon radical with 8 to 24 carbon atoms or one through an aliphatic, straight-chain or branched chain hydrocarbon radical with 8 to represents 18 carbon atoms substituted benzene radical; η is a number from 1.5 to 12; and M is an alkali metal or Ammonium ion or a dimethyl, diethyl, trimethyl, triethyl, dimethanol, diethanoi-, trimethanol or Trxathanolammoniumrest means;

B. from about 0.1 to about 5 % by weight of a water-soluble gelatin having a molecular weight of at least 12 and up to 100,000, preferably from about 15,000 to about 60,000; an isoelectric point of pH 4.5 to pH 9 »2 and a gel strength of 25 to 300 bloom grams;

C. up to about 45 wt .- / S of a water-soluble hydrocarbon sulfonate the general formula:

R ₂ -SO M (II)

wherein R- is a straight or branched chain, saturated or unsaturated, aliphatic hydrocarbon radical with 8 to 24 carbon atoms or one by an aliphatic, straight-chain or branched-chain hydrocarbon radical with 8 to 18 carbon atoms is substituted benzene radical and M has the above meaning;

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. D. up to '15 weight -% of a wasseriösliehen Kohlenwasserst off sulfates of the general formula:

R OSO ₃ M (III)

wherein R is a saturated or unsaturated aliphatic Represents a hydrocarbon radical having 8 to 20 carbon atoms und.M has the above meaning; and

E. as remainder: water;

wherein the total amount of anionic, organic surface-active Detergent at most 47.5% by weight, preferably Is 12 to 36 wt% and the weight ratios of A: C, A: D or A: C + D, if C and / or D are present, are above 1:10, preferably above 1: 3.

A preferred liquid detergent mainly consists of:

A. from about 6 to about 25 wt -.% Of a sulfate of the general formula (I) wherein R. is an alkyl radical having from 12 to l8 carbon atoms, preferably means a radical derived from coconut higher fatty alcohol, η a number from 3 to 6, and M represents an ammonium or alkali metal ion;

B. about 0.2 to about 2 % by weight of a water-soluble gelatin with a molecular weight of 15-000 to about 60,000, preferably from 25,000 to 50,000; an isoelectric point above pH 6, preferably at pH 7 to pH 9 and a gel strength of more than 50 bloom grams, preferably from 80 to 200 bloom grams;

C + D from about 10 to about 30 wt -.% Of a mixture of 1 part of a sulphonate of the general formula (II) wherein R ₂

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an aliphatic, straight-chain hydrocarbon radical with 12 to 16 carbon atoms, preferably an olefin radical, or a C. " κ-alkylbenzene radical and Γ4 represents an ammonium or alkali metal ion, and 2 parts of a sulfate of the general formula (III), in which R, a C ₁₂ _> ic "~ alkyl radical and M is an ammonium or alkali metal ion; and

E. remainder: water;

wherein the total amount of surface-active detergents 18 to 36 wt -% by..

The anionic surface active detergents used in the liquid detergent of the present invention, the gelatin and the other ingredients that can be added in smaller quantities _y are described below. If in the following description of the surface-active detergents and other components reference is made to a salt of an anionic surface-active detergent or other acidic component, this means a sodium, potassium, ammonium, trimethyl, triethyl, dimethyl, Diethyl, trimethanol, triethanol, dimethanol and diethanolammonium salts, unless otherwise stated.

Suitable detergent surfactants in the liquid cleaning agents of the present invention can be used are:

1. Iiras serious Ii before hydrocarbon sulfates, shown by the general "formula

R ₁ O (C ₂ H ₄ O) _n SO ₃ M (I)

wherein R ^ is a straight or branched chain, saturated one or unsaturated, aliphatic hydrocarbon radical with 8 to 2 * 1, preferably 12 to 16 carbon

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represents material atoms or a benzene radical substituted by an aliphatic, straight-chain or branched-chain hydrocarbon radical having 8 to 18 carbon atoms, preferably 12 to 16 carbon atoms; η is a number from 1.5 to 12 and M is a cation. Important examples of preferred hydrocarbon sulfates according to the present invention are the salts of an organic sulfuric acid reaction product obtained by reacting a reaction product of a saturated or unsaturated fatty alcohol with 8 to 1-8 carbon atoms, preferably tallow or coconut alcohol, or a Cn _-1 n-alkylphenol with 1 , 5 to 12, preferably 3 to 6 moles of ethylene oxide per mole of fatty alcohol is obtained in a manner known per se with SO- or HpSOj, and optionally subsequent bleaching and / or subsequent hydrolysis. Specific examples are C _12-111 -AlCyI-O- (C ₂ H ₁₁ O) -SO N (C ₃ H ₁₁ OH) ₃ ; Coconut O- (C ₂ H ₁₁ O) ^ -SO Na; C ₁₁₁ -AlCyI-O- (C ₂ H C ₁₂ _ ₁₆ -Alky 1-0 (C ₂ H ₁₁ O) ₆ -SO ₃ K; and tallow -0- (C SO ₃ N (H) (C ₂ H ₁₁ OH) ₂ ;

2. water-soluble salts of an organic sulfuric acid reaction product the general formula:

R ₂ -SO-M (II)

wherein R _{2 is} a straight-chain or branched-chain, saturated or unsaturated, aliphatic hydrocarbon radical having 8 to 24, preferably 12 to 16 carbon atoms or a benzene radical substituted by an aliphatic, straight-chain or branched-chain hydrocarbon radical having 8 to 18 carbon atoms, preferably 12 to 1f> carbon atoms, and M is a cation. Important examples of preferred synthetic detergents. According to the present invention, the salts are a

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organic sulfuric acid reaction product of a hydrocarbon of the methane series, including the iso-, neo-meso- and η-paraffins, with 8 to 2 ^ carbon atoms, preferably 12 to 16 carbon atoms or a hydrocarbon of the ethylene series with 8 to 20, preferably 12 to 16 Carbon atoms and 1 to k double bonds, and a sulphonating agent, for example SO ^, HpSOJj and oleum, which is obtained by known sulphonation processes and optionally bleaching and hydrolysis. Sulfonated Cpg-cx-olefins, alone or together with sulfonated η-paraffins with an average of 14 carbon atoms, are preferred. Important examples of alkylbenzenesulfonates in which the alkyl group contains 8 to 18 carbon atoms are dodecyl, tetradecyl and hexadecylbenzenesulfonates and those described in US Pat. Nos. 2,220,099 and 2,477,383.

3. water-soluble salts of an organic sulfuric acid reaction product the general formula:

R OSO M

wherein R ^ is a saturated or unsaturated, aliphatic hydrocarbon radical having 8 to 20, preferably 12 to 16 carbon atoms and M is a cation. Important examples of such salts according to the present invention are the salts of an organic sulfuric acid reaction product, which is produced by reaction of saturated and / or unsaturated fatty alcohols, preferably coconut or tallow alcohol, in a manner known per se with SO ^. or HpS0 | i optionally followed by bleaching and / or subsequent ¹ Hydrolysis be obtained. Specific examples are C ₁₂ _ _l4 alkyl-O-SO N (C ₂ H ₁₁ OH) _3, coconut-0-SO ^ K and Tälg-0-SO NH _14;

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k. Water-soluble gelatin has a molecular weight of 12,500 to 100,000, preferably from about 15,000 to about 60,000, an isoelectric point of pH 4.5 to pH 9.2 and a gel strength of 25 to 500 bloom grams.

Gelatin is a typical protein and the gelatin molecules, like the molecules of other proteins, are very large and complex with an average molecular weight from 5000 to 200,000 and even higher. Gelatin molecules in alkaline or acidic solution are amphoteric and have a specific isoelectric point that depends on the treatment conditions during manufacture. Gelatin obtained through an acidic treatment, has an isoelectric "point above pH 7, generally between pH 7 and 9, whereas gelatin obtained by an alkaline treatment is an isoelectric Point of pH 4.5 to 5. The preferred gelatin for The detergent of the present invention is the acid-treated gelatin having an isoelectric Point from pH 7.5 to 8.5 »preferably about pH 8 and an average molecular weight of 15,000 to 60,000, especially from 25,000 to 50,000.

The water-soluble gelatin can be contained in the liquid cleaning agent of the present invention in an amount of 0.1 to about 5% by weight, preferably 0.2 to about 2 % by weight, based on the total weight of the cleaning agent. While the very small amount of 0.1% by weight is necessary to achieve a noticeable run-off effect, the upper limit of about 5 % by weight is based on formulation requirements, ie on the fact that a liquid composition should be present, which is still pourable and therefore easy to handle, loosen and use.

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In order to achieve the comprehensive cleaning effect, ie the removal of dirt by simple rinsing and the removal of residues of dirt, surface-active detergent and hardening components of the water due to the drainage effect after additional rinsing, but without wiping or drying with a cloth, must the molecular weight of the gelatine to be used in the liquid cleaning agent according to the invention are above 12,500, preferably above 15,000 and in particular 25,000 to 60,000, while the isoelectric point of the gelatine is between pH 4.5 and pH 9> 2, preferably above pH 6 and in particular at pH 7 to pH 9 and the gel strength of the gelatin to be used should be above 25 bloom grams, preferably above 50 bloom grams and in particular 80 to 200 bloom grams. (The gel strength in Bloom grams or Bloom strength is the force in g that must be applied to a cylinder 12.7 mm in diameter in order to penetrate the surface of a gel made of 6.67 % gelatin with 15 % moisture 4 penetrates mm deep, see British Standard Method for Sampling and Testing Gelatins.)

Suitable further ingredients or additional compounds included in the detergents of the present invention may be included to make them more appealing to consumers are:

5. Low molecular weight organic acids such as acetic acid, citric acid, maleic acid and inorganic acids such as boric acid and the corresponding alkali metal salts, but only in very small amounts. Potassium tetraborate is preferred. Although boric acid or salts can be added in amounts up to 5 % by weight, calculated on the total weight of the cleaning agent, additives of 2 to 3 % are preferred;

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6. Fragrances, dyes, fluorescent substances, substances, that prevent blindness, such as benzotriazole or ethylene thiourea, and bactericides.

7. Hydrotropes and other solubilizers, such as Na-cumene sulfonate, Na- or K-toluenesulfonate, Na- or K-xylene sulfonate, ethanol, butanol or isopropanol.

As previously indicated, the detergents of the present invention can be used in hard water. If the water hardness is expressed in millimoles CaCO per liter, soxtfohl can be used for the cleaning solution as well as for the rinsing solution with a water hardness between 0.7 mmol and 3.7 mmol CaCO per liter and higher. /

The excellent cleaning effect and especially the superior drainage effect of liquid dishwashing detergents of the present invention are demonstrated in the following experiment.

Seven series A, B, C, D, E, F and G, each consisting of two dishwashing detergent solutions, which are defined below, and seven series A ¹ , B ¹ , C, D ¹ , E ¹ , F ¹ , and G ^f , each consisting of two rinsing solutions, were prepared. Each dishwashing detergent solution in a series contained 0.2% by weight per liter of a dishwashing detergent identified below. The rinsing solutions consisted of plain tap water. The water in the rinsing and post-rinsing solutions had a water hardness of about 3 mmol CaCO per liter. Each rinsing or rinsing bath contained about 10 liters of water. The temperature of all rinsing solutions or baths was about 42 ° C at the beginning and dropped to 35 to 27 ° C at the end of the rinsing process. The temperature of the rinsing baths varied between HO and 42 ° C.

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In each of the two dishwashing detergent solutions from 7 series were 5 soiled glasses (content about 25 el), which had been received from a cafeteria, Rinsed for 30 seconds, removed and placed on a rack for 30 seconds, then 5 x individually in the corresponding rinsing liquids submerged and in a vertical position with the bottom up on a rack to drain and air dry (room temperature approx. 23 ° C).

The liquid dishwashing detergent used in each Series used had the following compositions:

Components in% by weight series

ABCDEFG Coconut Alcohol Ethylene

oxide (3) sulfate ammonium salt 20 - 10 - 8 3 C ₁ h jg-alcohol ethylene oxide (6) sulfate ammonium salt - l ^; l 5 9 - 7

Tallow alcohol ethylene oxide (9) -

sulfate sodium salt 5 - - 7

Paraffin sulfonate ammonium

salt (average

Molecular weight of the

Paraffins: I96) 10 12 - - 12

Olefin sulfonate ammonium salt

(mainly from ^c -i / i-ifi " ¹¹ ""'"

Olefin) - 12 - 21 12 - -

C ₁ ρ "AlkyIbenzoIsulfonat-

ammonium salt - - 10 - - 8 -

Gelatin ⁺ . 0.5 0.5 0.7 0.3 0.9 1.5 water ~ ■ remainder -

Gelatin: average molecular weight 30,000; isoelectric point about pH 8.2; Gel strength, for example 90 bloom grams.

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If you observe the film of water that followed the last If the rinsing process takes place from the glasses, this film of water runs off the glasses in a few seconds had been rinsed in the solutions of series A to P,

and these glasses were dry long before the glasses, which had been rinsed in the G series solutions.

After all the glasses were dry, the outward appearance became rated the glasses. The glasses that were rinsed in series A to P rinsing liquids, were superior to glasses rinsed in the G series rinse fluids; they showed less or no streaks and stains hardly due to water hardness, whereas the glasses of the G series are different Streaks and various stains due to water hardness.

The invention is further illustrated by the following examples explained. All percentages relate to weight.

example 1

20.0 % C ₁₂ _ ₁ j.-alcohol-ethylene oxide- (3) -sulphate-sodium salt _J ,

15.0 % Cpg paraffin sulfonate sodium salt,

0.5 % gelatin, average molecular weight 25,000, isoelectric point about pH 8.4, gel strength about 80 bloom grams,

Rest water. '

Example 2

16.0 % C ₁₂ _ _llt alcohol ethylene oxide (3) sulfate sodium salt, 15.0 % C ₁ ^ g paraffin sulfonate triethanolammonium salt,

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I ₁ O% gelatin, average molecular weight 45,000, isoelectric point about pH 8.2, gel strength about 100 Bloom grams,
Rest water.

By replacing the C. "_ ,. |, Alcohol ethylene oxide (3) sulfate sodium salt by the same weight of coconut fatty alcohol ethylene oxide (6) sulfate sodium salt, or by a mixture of 8 % coconut fatty alcohol sulfate sodium salt and 8 %. . C ₁₂ _ _li | -alcohol-ethylene oxide- (3) -sulphate-sodium salt, cleaning agents are obtained which have approximately the same cleaning effect and approximately the same drainage behavior.

■ Example 3

10.0 % Cp-alcohol-ethylene oxide- (4) -sulfate-ammonium salt, 30.0% CL, .p-paraffin-sulfonate-ammonium salt, 0.8 % gelatin, average molecular weight ■ 35,000, isoelectric point approx. PH 8, gel strength about 90 bloom grams,
Rest water.

Example M ' 1

18 ₉ O % coconut alcohol ethylene oxide (3) sulfate ammonium salt, 10.0 % C ₁ 2_. _i. alkylbenzene sulfonate sodium salt, 1.0% ammonium sulfate

1.5 % gelatin, average molecular weight 25,000, isoelectric point about pH 8, gel strength about 80 bloom grams,

Rest water.

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Examples 5 - IQ

5 6 7 8 9 coconut alcohol1-ethylene-

oxide (3) sulfate ammonium salt 16 $ -

Coconut alcohol ethylene oxide ~ (9) sulfate sodium salt - 22% -

sodium salt. 10% 8% lU% 10% 5%

ammonium salt - 8% 10%

l -1u
sodium salt - 5% ~

Gelatin 0.55 ^ l, 5% ¹⁾ 3% ²⁾ 0.3% ³ ^ 0.8% ² ^ 0

Water . rest

1) average molecular weight 25,000, isoelectric point about pH 8.5, gel strength 75 bloom grams,

2) average molecular weight kO- 000, isoelectric point about pH 8, gel strength 100 bloom grams,

3) Average molecular weight 15,000, isoelectric point about pH 7.6, gel strength 60 bloom grams ■.

U) average. Molecular weight 3200.0, isoelectric point etx ^ a pH 8.2, gel strength 85 bloom grams.

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Claims (2)

Claims 1. Liquid, aqueous cleaning agent, especially for dishes, which contains practically no builders and can be used in hard water, containing a surface-active agent and a protein derivative, characterized in that it consists essentially of the following components: A. about 3 to about 45 . wt -% of a xtfasser lös lent hydrocarbon sulfate of the general formula: R ₁ O (C ₂ H ₄ O) _n SO ₃ M (I) wherein R _{1 represents} a saturated or unsaturated, aliphatic hydrocarbon radical having 8 to 24 carbon atoms or a benzene radical substituted by an aliphatic, straight-chain or branched-chain hydrocarbon radical having 8 to 18 carbon atoms, η is a number from 1.5 to 12 and M is an alkali metal or ammonium ion or denotes a dimethyl, diethyl, trimethyl, triethyl, dimethanol, diethanol, trimethanol or trxethanol ammonium radical; B. about 0.1 to about 5 wt -.% Of a water-soluble gelatin having a molecular weight of at least 12 up to 100 000 vorzugsxveise etvra of from 15 000 to about 60 000 an isoelectric point of pH 4.5 to pH 9.2 and a gel strength of 25 to 300 bloom grams; C. up to about 45 weight percent of a water soluble hydrocarbon sulfonates of the general formula: R ₂ -SO M (II) where R ~ is a straight-chain or branched-chain, saturated one or unsaturated, aliphatic hydrocarbons 40981 6/1 079 / 9 Substance residue has 8 to 24 carbon atoms or one through an aliphatic, straight chain, or branched chain Hydrocarbon group having 8 to 18 carbon atoms substituted benzene group, and M represents the above Has meaning; . . D. up to 45 weight -% of a vras reliable loan Kohlenwasserstoffsulf ates of the general formula: R ₃ OSO M (III) wherein FL · a saturated or unsaturated aliphatic Hydrocarbon radical with 8 to 20 carbon atoms represents and M has the preceding meaning; and ■. E. as the rest: water, wherein the total amount of anionic, organic surface-active Detergent at most 47.5 wt. #, Preferably Is 12 to 36 wt% and the weight ratios from Ä: C, A: D or A: C + D, if C and / or D are present, above 1:10, preferably above 1: 3. 2. Cleaning agent according to claim 1, characterized in that it consists essentially of the following components consists: A. about 6 to about 25 wt .- ^ $, of a sulfate of general formula. (I), in which R. is an alkyl radical with 12 represents up to 18 carbon atoms, preferably a higher fatty alcohol radical derived from coconut oil, η is a number from 3 to 6 and M is an ammonium or alkali metal ion; B. about 0.2 to about 2 wt .-% of a water-soluble gelatin having a molecular weight from 15,000 to about 60,000, preferably from 25,000 to 50,000.; an iso- 98 16/1079 ■ ίο electrical point above pH 6, "preferably from pH 7 to pH 9, and a gel strength above 50 bloom grams, preferably from 80 to 200 bloom grams; C + D. about 10 to about 30% by weight of a mixture of 1 Part of a sulfonate of the general formula (II), in which R _{? Is} an aliphatic, straight-chain hydrocarbon radical having 12 to Ί6 carbon atoms, preferably an olefin radical or a C "^ .- alkylbenzene radical and M is an ammonium or alkali metal ion, and 2 parts of one Sulphates of the general formula (III), in which R 1 is a C "_" ^ -alkyl radical and M is an ammonium or alkali metal ion; and
E; the remainder: water; wherein the total amount of surfactant detergents 18 to 36 wt. amounts to. 3 · - cleaning agent according to one of claims 1 or 2, characterized in that it additionally contains 2 to 5 weight -% containing Na cumene sulfonate, sodium or potassium toluene sulfonate or sodium or potassium XyIoIsulfonat as hydrotropic agent. H. Cleaning agent according to one of claims 1 to 3, characterized in that it additionally contains 2 to 10 wt -% of an organic alcohol having from 2 to 5 carbon atoms, ·.. For: Procter & Gamble European Technical Center Dr H.J. Wolff Lawyer 4 0 98 16/1079