SK25393A3 - Liquid detergent compositions - Google Patents

Abstract

Aqueous unbuilt liquid or gel-form detergent compositions are provided comprising, from 15 % to 65 % by weight of a core surfactant mixture, comprising from 5 % to 95 % by weight of the mixture of a water soluble anionic sulphate or sulphonate surfactant salt together and from 5 % to 95 % by weight of the mixture of one or more compounds of formula (I), wherein Z is a polyhydroxy hydrocarbyl moiety having a linear hydrocarbyl chain with at least three hydroxy groups connected directly to the chain, said moiety being derived from glucose and mixtures thereof with maltose, the maltose comprising not more than 33 % of the mixture, R is a C6-C16 hydrocarbyl radical and R1 is a C1-C4 alkyl or C2-C4 hydroxyalkyl group, a 0.12 % solution of the surfactant mixtures of the compositions having an interfacial tension (IFT) of less than 0.2 Pa.cm at 48 DEG C and a polypropylene cup (PPC) greasy soil removal value of at least 1.4 x that of the anionic surfactant component(s) alone. Preferred optional ingredients include amide, betaine and ethoxylated C9-C11 fatty alcohol suds modifiers.

Description

Field of the Invention

The invention relates generally to aqueous liquid cleaners, and more particularly to liquid cleaners intended to remove greasy soils from hard surfaces, such as plates, bowls and other articles used in the preparation of food and in the consumption of food.

BACKGROUND OF THE INVENTION

Liquid dishwashing detergents are generally in the form of aqueous solutions containing a mixture of one or more of the sulfate and sulfonate anionic detergents forming the core of the surfactants together with the suds stabilizing agents may take a wide variety of forms, but are generally amide derivatives, an amine oxide, an ethoxylated aliphatic alcohol, both surfactants such as betaine or a mixture of several such agents. The amounts of such types of materials used are generally 2 to 8, in particular 3 to 5, by weight, based on the weight of the composition as a whole.

One type of amide derivatives that are suitable for promoting and stabilizing the foam are N-alkanoyl-N-alkyl-glucamines. These compounds are derived from glucose and can be prepared by reacting a lower alkylamine with glucose to form a gleamine and then reacting the glucamine with a fatty acid methyl ester of the desired chain length to yield

N-N-alkanoy1 alky1glukamínu.

Compounds of this type are known, for example, from US-A-2 703798, from WO83 / 04412 and from GB-A-809060. This British patent discloses cleaning compositions comprising at least one water-soluble salt of an organic sulfur reaction product having a sulfuric or sulfonic acid sulfuric acid structure in its molecular structure and an amide derivative of the above type in an amount of 5 to 60% by weight, relating to the organic sulfuric reaction water. Derivatives have been reported to improve the suds-soluble product of the amide detergents typically at temperatures below 37 ° C, and especially in Latin dishes at bath temperatures as low as

America is washed for example at 16 ° C.

However, this patent is mentioned.

According to preferred and exemplified embodiments, the surfactant composition is a granular composition with incorporated phosphate builders (term for detergent ingredients) and sodium sulfate.

Surprisingly, it has now been found that liquid or gel-like builders, devoid of builders, containing, as core surfactants, mixtures of certain

The N-alkanoyl-N-alkyl glucamines with sulfate or sulfonated surfactants are characterized by significant greasy dirt from the hard surfaces to improve the removal of the simultaneous increase in foaming and, at the same time, mild treatment with known agents for such purposes.

to the skin compared to

However, mixtures of anionic sulphate or sulphonate surfactants and N-akanoyl-N-alkylglucamines have been proposed to improve foaming of products with low wash bath temperature builders, effectiveness with respect to greasy soil removal and mild skin activity, as with the compositions of the invention were not yet known.

SUMMARY OF THE INVENTION i

The essence of the builder-free liquid or goalie detergent composition in the form of a physically stable aqueous solution of the invention is that it contains about 15 to 65% by weight of the composition as a whole, a core surfactant containing a weight percent.

(a) 95% of a mixture of at least one water-soluble salt of an anionic surfactant from the group consisting of sulphates and sulphonates

b) 95 to about 5% of a mixture of one or more compounds of the general formula

R-CON-Ri

I

Z where means

A straight hydrocarbon chain polyhydroxy hydrocarbon moiety having at least three hydroxyl groups bonded directly to the chain and derived from glucose and mixtures thereof with maltose, the maltose content of which is not more than approximately 33% by weight of the mixture,

R is a moiety selected from the group consisting of saturated and unsaturated aliphatic groups having 8 to 16 carbon atoms, and mixtures thereof; and

R 1 is selected from the group consisting of C 1 -C 4 alkyl and C 2 -C 4 hydroxyalkyl, wherein a 0.12% by weight aqueous solution of the surfactant composition of this composition has 2 ° (calcium to water ratio) of magnesium 3 - 1) and at 48 ° C.

(i) a decrease in the interfacial tension (IFF) of less than about 0.2 Pa cm using a tri-oline dirt having a purity of 99.7%; (ii) a grease dirt removal value in the polypropylene cup test (PPC) of at least about 1.4 times the value; obtained in the same test under the same conditions using a 0,12% solution of at least one anionic surfactant alone.

The term physically stable always refers to maintaining a single phase state without precipitation after three months of storage at 21 ° C. If the composition contains an additive to obtain turbidity.

there should be no or only minimal deposition of this additive.

causing opacity.

In addition, for the purposes of the IFT & PPC test measurements of the invention, the cation or cations of the water-soluble anionic sulphate or sulphonate surfactants are such that they correspond to the cation or cations of the detergent and if mixtures of cations are present in proportions by weight corresponding to each cation content. contained in the mixture.

Preferred compositions according to the invention as component (b) of compounds in which the polyhydroxy hydrocarbon moieties are derived from glucose or from mixtures thereof with maltose, the mixture containing less than 25% by weight of maltose. %. For purposes of the invention, glucamines are materials containing up to 5% by weight of maltose-derived components.

Suitable anionic sulphate or sulphonate surfactants include C10 to C16 alkyl ethoxy sulphates containing an average of up to 6 moles of ethylene oxide per mole of alkyl ethoxy sulphate, C10 to C18 paraffin sulphonates and 9 to 17 N-acyl-N-alkylglucamine sulphates (C1 -C4) -alkyl acyl groups having from 1 to 4 carbon atoms in the alkyl moiety;

Preferred detergent compositions of the present invention comprise an anionic surfactant system containing from about 9% to about 18% by weight of the composition as a whole of a C 12 -C 14 primary alkyl ethoxy sulfate having an average of from about 0.4 to about 4.0 ethylene oxide moieties per mole of C 12 -C 14 alkyl ethoxy sulfate in the alkyl moiety, preferably of from 0.3 to 3.0 ethoxy groups. together with 9 to 15% by weight of the cleaning agent as a whole,

N-cocoyl-N-methylglucamine.

In preferred detergent compositions of the present invention, the weight ratio of anionic surfactant to glucamine is from about 1 to about 1 ^: 1. glucamine surfactant. The alkyl ethoxy sulfates themselves contain a mixture of material containing about 0.8 moles of ethylene oxide per mole and a material containing about 3.0 moles of ethyleneoside per mole at a weight ratio of 2 = 1 to 5 = 1, preferably about 4-1.

Preferred detergents according to the invention also contain from 1 to 8% by weight, preferably from 2 to 7%, of a suds booster selected from the group consisting of alkyl monoalkanolamides and C1 -C16 alkyl dialkanolamides and C1 -C3 alkyl alkanes. or C 12 -C 14 alkyl amido betaines, C 12 -C 14 alkylsulfobetaines, C 1 -C 4 alkyl dialkylamino oxides having 1 to 4 carbon atoms in the second alkyl moiety, or alkyl dihydroxyalkylamines having from 10 to 16 carbon atoms in the alkyl moiety and from 2 to 4 carbon atoms in the hydroxyalkyl moiety i. primary alcohol ethoxylates having 9 to 12 carbon atoms in the alcohol moiety and having medium 7 to 12 ethylene oxide groups per mole of alcohol and mixtures thereof.

Preferred agents. suds enhancing agents, containing mixtures of C12-14 alkylbetaine in an alkyl fraction of 1 to 5% by weight, preferably 1.5 to 3% by weight based on the weight of the detergent composition, are magnesium ions in an amount of up to 15% by weight, and in particular 0.5 to 1.0%, based on the cleaning agent as a whole. Particularly preferred cleaning compositions also contain calcium in addition to magnesium ions in an amount of from 0.3% to 0.5% by weight.

Accordingly, the detergent compositions of the present invention comprise a mixture of core surfactants in an amount of 15 to 65% by weight of the cleaning agent as a whole, preferably 20 to 65%, based on the cleaning agent as a whole, preferably 20 to 50% and especially 22 to 50%. 40%. The composition comprises from 5% to 95% by weight of the composition of at least one water-soluble salt of an anionic sulfate or sulphonate surfactant together with a 95% to 5% by weight mixture of an N-acyl-N-alkylglucamine nonionic surfactant with 8%. up to 16 carbon atoms in the acyl moiety and from 1 to 4 carbon atoms in the alkyl moiety. Preferably, the composition comprises 20 to 80% by weight of anionic surfactant and 80 to 20% of alkylglucamine and in particular 40 to 70% of anionic surfactant and 60 to 30% of alkylglucamine. The anionic surfactant may be substantially any organic sulfate or sulfonate surfactant. however, typically the anionic surfactant is selected from the group consisting of alkylbenzene sulfonates having 11 to 15 carbon atoms in the alkyl moiety, alkyl sulfates having 10 to 16 carbon atoms in the alkyl moiety, and their ethoxy analogues containing up to 6 moles of ethylene oxide per mole of alkyl ethoxysulfate. C13-C18 paraffin sulphonates, C10-C16 olefin sulphonates, C10-C20 alkyl glyceryl ether sulphonates, C7-C17 acyl-N-alkylglucamine sulphates having 1 to 4 carbon atoms in the alkyl group , C 9 -C 17 acylhydroxyalkyl glucamine sulphates and C 2 -C 4 hydroxyalkyl, and any mixtures thereof. Particularly preferred anionic surfactants are selected from the group consisting of alkylatoxysulfates, alkylglyceryl ether sulfonates and paraffin sulfonates.

The alkylbenzene sulfonates useful in the detergent compositions of the present invention preferably have an alkyl group substantially linear containing from about 10 to about 16 carbon atoms, preferably from about 11 to about 13 carbon atoms, with a mean carbon chain length of about 11.8 being most preferred. The separation of the phenyl isomer, i.e. the alkyl chain binding site on the benzene nucleus, is not critical, but alkylbenzenes with a high 2-phenyl isomer content are preferred.

Suitable alkyl sulfates are primary alkyl sulfates having an alkyl moiety of from 10 to 16 carbon atoms, preferably from about 12 to 14 carbon atoms, preferably in a linear chain. Alcohols of 10 to 16 carbon atoms, derived from natural fats or from the Ziegler olefin synthesis or the OXO synthesis, are suitable sources of such alkyl groups. Examples of synthetically derived materials include Dobanol 23 (RTM = registered trademark) of Shel1 Chemicals (UK) Ltd., Etyl 24 of Etyl Corporation, a mixture of C13-C15 alcohols. 33% C15, sold under the trade name Lutensol, to BASF GmbH with Synperonic (RTM) by ICI Ltd. and Lial 125 of Liquichimica Italiana. Examples of naturally occurring materials from which such alcohols can be derived are coconut oil and palm kernel oil and the corresponding fatty acids.

Alkyl ethoxylate surfactants include a primary alkyl ethoxy sulfate derived from the condensation product of a C 10 -C 16 alcohol having medium to 6 atylene oxide groups. The C 10 -C 16 alcohol itself can be obtained from any of the above sources for the alkyl sulfate component. Preferred are C 12 -C 13 alkyl ether sulfates in the alkyl moiety. The conventional alkaline catalysed ethoxylation process results in a medium degree of ethoxylation 6 by separating the individual ethoxylates 1 to 15 of ethoxy groups per mole of alcohol, so that the desired mean value can be obtained in a variety of ways. Mixtures with different degrees of ethoxylation or with different ethoxylate distributions can be prepared in connection with specific ethoxylation processes and subsequent distillation treatment. For example, it has been found that equivalent foaming and, typically, greasy soil removal for a given mixture of alkyl sulfate and alkyltriethoxy ether sulfate can be obtained by lowering the alkyl sulfate content and using alkyl ether sulfate with an average of about two ethoxy groups per mole of alcohol. In a preferred detergent composition of the invention, a mixture of alkyl ethoxysulfates is used, a material having a mean degree of ethoxylation of 0.4 to 1.0, preferably about 0.8, combined with a material having a mean degree of ethoxylation of 2.0 to 4.0, preferably about 3.0 .

Secondary alkanesulfonates. Suitable for the detergent compositions of the invention have 13 to 18 carbon atoms per molecule, especially 13 to 15 carbon atoms per molecule. These sulfonates are preferably prepared by subjecting a paraffin cut of the corresponding chain length, as described above, to a treatment of sulfur dioxide and oxygen with a known sulfoxidation process. The reaction product is a secondary sulfonic acid which is then neutralized with a suitable base to give a water-soluble secondary alkyl sulfonate. Similarly, the secondary alkyl sulfonates can be obtained by other methods, for example, the sulfochlorination method, wherein chlorine and sulfur dioxide are reacted with paraffins in the presence of actinic light, whereby the obtained sulfonyl chlorides are hydrolyzed and neutralized to form secondary alkyl sulfonates. Whether any method is used, it is generally desirable to prepare the sulfonate as a monosulfonate, free of unreacted starting hydrocarbons or having only a limited content thereof and a small amount of inorganic salts as a by-product or simple inorganic salts. Similarly, the proportions of disulfonate or higher sulfonated material are minimized, but some may be present. The monosulfonate is to be terminally sulfonated or the sulfonate group can bind to carbon 2 or another carbon of the linear chain. Similarly, any concomitant disulfonate, generally produced using an excess of sulfonating agent, may have sulfonate groups distributed on different paraffin base carbon atoms, and mixtures of monosulfonates and disulfonates may be included.

Mixtures of monoalkanesulfonates, wherein the alkanes have 14 to 15 carbon atoms are particularly preferred, wherein the sulfonates are comprised in a weight ratio of paraffins with 14 to 15 carbon atoms in the range of 1 = 3 to 3 '-1.

Olephine sulfonates. useful for the detergent compositions of the invention are mixtures of alkene-1-sulfonates, alkene hydroxysulfonates, alkene disulfonates, and hydroxysulfonates and are described in U.S. Pat. No. 3,333,280 (P.F.Palafala & A. Kessler, issued July 25, 1967).

Suitable alkyl glyceryl ether sulfonates are derived from coconut oil and tallow ethers.

Other sulfate surfactants include N-acyl-N-alkylglucamine sulfates having from 9 to 17 carbon atoms in the acyl moiety and from 1 to 4 carbon atoms in the alkyl moiety i, preferably from 9 to 17 carbon atoms in the acyl moiety i, derived from coconut or palm kernel oil. These materials can be prepared by the method of US-A-2 717894.

The ion for the anionic surfactant may be any cation from sodium, potassium, or magnesium. ammonium or alkanolammonium; and mixtures thereof. Sodium ions are preferred for the liquid detergent compositions of the present invention, but potassium is even more preferred when it is important that the compositions of the present invention are perfectly clear and have high resistance to clot formation.

In the gel-formulations of the invention, sodium is more preferred than potassium or ammonium for gel formation. Preferred liquid detergent compositions of the invention have a cloud point temperature of less than 8 ° C, preferably less than 5 ° C and are at least partially neutralized with ammonium ions. (The cloud point temperature is the temperature at which the inorganic salts precipitate as crystals in the liquid).

If calcium or magnesium ions are present, they may be introduced either in the form of an oxide or hydroxide to neutralize the surfactant acid or added to the compositions in the form of a water-soluble salt. However, the addition of a considerable amount of such salts to the dishwashing composition of the invention raises the temperature at which crystals of inorganic salts are formed in the detergent composition upon cooling, and the added amount of such salts should therefore be minimized.

In preferred cleaning compositions according to the invention mixtures of calcium and magnesium ions may be added to achieve up to 1% by weight of calcium ions relative to the cleaning agent as a whole, in particular 0.3 to 0.5% calcium ions and up to 1.5% magnesium ions, in particular 0.5 to 1.0% of magnesium ions. Preferred mixtures are magnesium rich and a more preferred ratio of calcium to magnesium ions is 1 to 1: 4. Detergents incorporating magnesium and calcium ions are particularly suited to very low water hardness (less than 2 ° dash) conditions and also to concentrations % of the product greater than 0.5% by weight.

second nuclear surface active ingredient liquid cleaning deprived of funds builders, is compound of of formula □

R-C-N-R 1

FROM where means FROM polyhydroxyhydrocarbyl part with linear hydrocarbon chain with at least three hydroxylic

the groups are directly linked to the chain, and this moiety is derived from glucose and their mixtures with maltose, the maltose content by weight being at most approximately related to the mixture.

R is a moiety selected from the group consisting of saturated and unsaturated alkyl groups of 8 to 16 carbon atoms, and mixtures thereof; and

R 1 is selected from the group consisting of C 1 -C 4 alkyl and C 2 -C 4 hydroxyl.

The group R may be derived from any source of the hydrocarbon groups mentioned above with respect to the anionic surfactant, but is preferably of natural origin. The R group preferably has a mean chain length of 12 to 14 carbon atoms and is derived from coconut oil or palm kernel oil. Preferably R 1 is methyl.

The preparation of glucamine compounds is known in the art and is not part of the present invention. A representative process for the preparation of N-akanoyl-N-alkylglucamines having two major steps as described above is described in US-A-2 703798. The first step involves the reaction of glucose and a primary alkylamine in the presence of hydrogen and a hydrogenation catalyst under increased temperature and at elevated pressure with the ingress of glucamine. This globulin is then reacted with the ester at elevated temperature to form N-alkanoyl-N-alkylglucamine. It appears advantageous to add a low amount of sodium methoxide catalyst in this second step.

The preferred concentration of N-alkanoyl-N-glucamine in the liquid or gel-like detergent compositions of the present invention is from 8 to 25% by weight, especially from 9 to 18% by weight, and in particular from 10 to 15

The physically stable cleansing compositions of the invention may be formulated with calcium ions in the absence of magnesium ions, but require the use of high purity N-alkanoyl-N-alkylglucamines in which the concentration of unreacted starting materials, impurities and by-products, particularly fatty acids, is minimized.

The liquid detergent compositions of the invention may be precipitated with water or, in the case of a gel-like composition, with a gelling agent and water. However, preferred detergent compositions of the invention may also contain other functional ingredients and the weight content of the mixture of anionic surfactant or anionic surfactants and globulin components is 20 to 40, in particular 22 to 30

A highly desirable component is one or more suds modifiers or promoters, generally contained in an amount of 1 to 8 by weight based on the weight of the detergent composition as a whole.

Some of these substances also have additional functional significance.

such as suspending agents for suds boosters is dirt. One such alkyl monoalkanolamide or alkyldialkanolamide each having 10 to 16 carbon atoms in the alkyl moiety i and having 2 to 3 carbon atoms in the alkanol moiety i. Examples are coconut alkyl monoethanolamide, coconut alkyl diethanolamide and palm kernel and coconut alkyl monoisopropanolamide and alkyl diisopropanolamide.

A palm kernel or coconut alkyl radical of up to 16 carbon atoms or it can be a so-called narrow cut with a fraction of up to carbon atoms. Synthetic sources of alkyl groups of up to 16 carbon atoms can also be used.

Other useful suds enhancers are the two surfactants of the formula

Rz \ I

R 1 - <Y> n - N ⁺ - CR ₃ ) _m XI

Rz where is

R 1 is C 1 -C 16 alkyl, R 2 is C 1 -C 3 alkyl, R 8 is of formula

- (CH 2) 3 or -CCH ₂ -CH-CH ₂ >

I

OH

Y is a group of formula □

I ·

- C - N - (CH ₂ > 3

I

H m & n is zero or 1a

X ^- CH ₂ COO - or SO 3, provided that when X ^- is CH ₂ COO -, it is zero and when X ^- is SO 3, n is zero and m is 1.

In particular, R1 is a medium chain length of 12 to 16 carbon atoms, which may be derived from synthetic sources, whereupon the chain may have some branching or natural fats and oils, the chain then being linear and may contain minor proportions of 8 up to 10 carbon atoms and 14 to 18 carbon atoms. Synthetic sources for the R 1 group may be the same as above for the alkyl group of the anionic surfactant.

A further class of suds boosters suitable for the detergent compositions of the present invention are amine oxides of the formula

R1 R2 R3 N where is

ri

R 2 and R 3 are C 1 -C 16 alkyl, C 1 -C 3 alkyl and C 2 -C 3 hydroxyalkyl.

Preferred members of this group are dimethyldodecyldimethyltetradecylamine oxide, bis- (2-hydroxyethyl) dodecylamino oxide group and analogues thereof. wherein their dodecyl or tetradecyl moieties are derived from natural sources. such as coconut oil or palm kernel oil.

Preferred sudsing agents are ethoxylated alcohol or mixtures of ethoxylated alcohols of defined composition.

The ethoxylated alcohol comprises an aliphatic alcohol ethoxylate having 6 to 13 carbon atoms, containing an average of 1.5 to 25, in particular 2 to 15, and most preferably 6 to 10 moles of ethylene oxide per mole of alcohol. The aliphatic alcohol ethoxylate contains not more than 1% by weight of the unethoxylated alcohol when the ethoxylated alcohol contains moderately less than 8 moles of ethylene oxide and not more than 2% by weight of the unethoxylated alcohol. when the ethoxylated alcohol contains an average of 8 to 25 moles of ethylene oxide per mole of alcohol.

The starting alcohol may be a primary or secondary alcohol, but is preferably a primary alcohol which may be derived from natural or synthetic sources. Natural fats or oils or products of Ziegler olefin synthesis or OXO synthesis can be used as a hydrocarbon chain source, which can be linear or branched.

The preferred alcohol chain length is from 9 to 11 carbon atoms, since it has been found that the foam volume and, typically, the foams of the detergent compositions of the invention are optimal when incorporating ethoxylates of such alcohols. It is also desirable for utility characteristics. the hydrophilic-lipophilic equilibrium (HLB) of the ethoxylated alcohol is 8.0 to 17.0, especially 11.0 to 17.0 and especially 11.0 to 15.0. A preferred alcohol ethoxylate is a primary alcohol ethoxylate having an average of 10 carbon atoms in the alkyl chain, condensed with an average of 8 ethylene oxide groups per mole of alcohol.

As mentioned above in connection with an alkyl ethoxy sulfonate as an anionic surfactant, a normal (catalysed catalysed) ethoxylation process for producing an intermediate degree of ethoxylation of Eav 6 results in the distribution of ethoxylated portions of 1 to 15 moles of ethylene oxide per mole of alcohol. The increase in Eav causes a certain change in distribution, essentially reducing the concentration of the non-ethoxylated material, but increasing the Eav from 3 to 5 still leaves about 5 to 10% of such material in the ethoxylated product.

In the liquid dishwashing detergent composition of the present invention, this content of unethoxylated material increases the phase stability and freezing point problems or leads to a fatty alcohol odor product which is unacceptable to the consumer and can be masked by conventional perfumes for detergents. The maximum permissible content of unethoxylated alcohol in the ethoxylated alcohol component has been found to be 1% by weight. In particular, not more than 0.7% and most preferably not more than 0.5% of the non-ethoxylated alcohol, based on the ethoxylated alcohol component, should be present.

Vacuum distillation is used to remove unwanted material, which also removes a portion of the monoethoxylated fraction while increasing the Eav value of the remaining material. According to a preferred embodiment of the invention, the monoethoxylate content by weight is not more than 5% by weight of the ethoxylated alcohol.

In the preferred cleaning compositions of the present invention, a suds modifying and promoting composition is used in an amount by weight of each component of 1 to 10%, preferably 2 to 8%. One such preferred composition is a mixture of C12 -C14 alkyldimethylbetaine in C9 -C11 alkyl condensed with an average of 7-9 moles of ethylene oxide per mole of alcohol, each of which is present in an amount of 2 to 8% by weight. % relative to the cleaning agent as a whole.

Preferred detergent compositions of the present invention employ a hydrotropic component-water system for balancing, wherein the hydrotropic component may be urea, a C 1 -C 3 aliphatic alcohol, a lower alkylbenzenesulfonate or a lower dialkylbenzenesulfonate salt, for example toluenesulfonate, xylene sulfonate or mixtures thereof. Generally, one hydrotropic compound is sufficient to achieve the desired phase stability, but the detergent compositions of the invention preferably comprise a urea-alcohol-water, alcohol-lower alkylbenzenesulfonate-water mixture, a urea-lower alkylbenzenesulfonate-water mixture to achieve the desired viscosity while maintaining the detergent stability. and suitable casting characteristics. In the case of detergent compositions having a concentration of less than approximately organic active% by weight, the preferred hydrotroping agent is ethanol, which is used in an amount of 3 to 10% by weight, based on the weight of the detergent composition as a whole.

preferably in an amount by weight of 4 to 8

%. generally mixed with urea. In the case of detergents with an organic active substance concentration greater than about 40% by weight, mixtures of ethanol with urea or a lower alkyl benzene sulfonate are preferred. Finally, the mixture of hydrotropic agents can be used for economic reasons without considering the stability and viscosity of the detergent compositions of the invention.

Optional components of the liquid cleansing compositions of the present invention include opacity delivery agents such as ethylene glycol distearate, thickeners such as guar gum, antibacterial agents such as glutaraldehyde and Bronopol (RTM), anti-conditioning agents such as benzoxytriazole, chelating agents for heavy metals such as ethylenediaminetetraacetic acid (EDTA) or ETDMP. perfumes and dyes The pH of the detergent compositions of the present invention can be any value in the range of 6.0 to 8.5. however, after preparation, the detergent compositions generally have a pH of 6.5 to 7.3, which is then subsequently adjusted to achieve the desired pH of the finished detergent composition. In the case of colored detergents, a pH of 6.5 to 7.2 is preferred to maintain color stability.

The detergent compositions of the present invention can be produced in a wide variety of ways, but it is preferable to introduce any zwitterionic surfactants at the end of the manufacturing process as the last additive. This minimizes the risk of any degradation of the zwitterionic surfactant from the acidic conditions that are at the beginning of the manufacturing process and also facilitates viscosity control of the final cleaning composition. The glucamine surfactant should not be exposed to a pH of less than 4 or more than 10 to prevent hydrolysis of the surfactant.

Thus, the anionic surfactants can be prepared as aqueous solutions of an alkali metal salt or ammonium salt having a pH of 4 to 10, which are mixed together with N-alkanoyl-N-alkyl-glucamine, followed by any an alkoxylated nonionic surfactant and other substances. with a hydrotropic agent, for which any calcium or magnesium ions can be introduced in the form of a water-soluble salt such as chloride or sulfate. Any zwitterionic surfactant and components added in small amounts are then added at the same time as the pH and viscosity are adjusted. This method has the advantage of using techniques and devices known per se, but introduces additional chloride and sulfate ions that can increase the cloud point (i.e., the temperature at which inorganic salts precipitate in the form of crystals in a liquid).

In the case of preferred cleaning compositions according to the invention.

containing alkyl ethoxy sulfate as an anionic surfactant, the desired alcohol and alcohol ethoxylate can be mixed together and one sulfation and neutralization can then be carried out on the two materials. For this purpose, the alcohol and the alcohol ethoxylate are to be mixed in a weight ratio of 4: 3 to 1 ^: 6.

Any sulfating or sulfonating agent such as sulfur trioxide or chlorosulfonic acid can be used for sulfating or sulfonating the alcohol and alcohol ethoxylate. The neutralization of the alkyl ether sulfuric acid and the alkyl sulfuric acid is then carried out using a suitable alkali or magnesium or calcium or magnesium / calcium oxide or hydroxide slurry. If the amount of anionic surfactant is not sufficient to allow the addition of the desired amount of calcium and magnesium ions by this route, the residual magnesium and calcium ions may be added in the form of a water-soluble salt.

The gel cleaners of the invention can be prepared by the method generally described in U.S. Patent 4,615,819.

The detergent compositions of the present invention are characterized by low interfacial tension (IFT), which is indicative of the ability to emulsify greasy and oily soils, high weight loss in the PPC test, which demonstrates the ability to remove greasy dirt from the surface and to disperse dirt from the solution. gentle effect on the skin. The prior art liquid detergent compositions do not combine these properties.

In addition, the detergent compositions of the present invention exhibit higher foaming in both hard and soft water compared to prior art detergents.

The procedures used to assess these parameters are described below.

1) Interphase voltage (IFT)

Interfacial voltage measurement is an indication of the ability of a surfactant sample to emulsify dirt under defined test conditions. Spinning drop tensiometer and Model 500 Texas strain gauge manufactured at the University of Texas Austin, Texas, United States are used to determine the interfacial voltage. Two devices are used, namely the model site 04 of Krtiss GmbH, Vissenschaftliche Laborgeräte, Borsteler Chaussee 85-99a, D2000 Hamburg 61 FRG under conditions corresponding to the European dishwashing process. Measurements are performed using a sample at 48 D 1 ° C.With a 0.12% w / w detergent in water with either a Diffusion Hardness of either 20 ^% or 18 ^% at a 3 L calcium to magnesium weight ratio based on the molar basis . Triolein with a purity of 99.7% (residual 0.3% is a mixture of free fatty acids) of Aldrich Chemical Company Ltd. is used as model soil. Nev Road. Gillingham, Dorset, England. Results are recorded in Pa cm (1 Pa cm = 10 dynes / cm).

2) Polypropylene Calcium (PPC) Weight Loss Test

The Polypropylene Cup (PPC) Weight Loss Test is a measure of the overall ability of a detergent to remove grease under conditions simulating manual dishwashing. The test involves measuring the amount of solid fats removed from the bottom of the polypropylene cup at a temperature below the melting point of the fats.

Oily dirt is prepared by mixing the following fats ^: (percentages are by weight):

70% solid 1QO% vegetable fat (Spry CRISP N DRY, Van den Berghs, Burgess Hill, V. Sussex, England) and 30% liquid 100% corn oil (MAZZOLA by CPC (UK)

Ltd., Claygate House, Esher, Surrey, England)

The mixture is heated until stirrable, then cooled and stored below 0 ° C. For use, approximately 150 ml of this fat is melted in a glass beaker and maintained at 70-75 ° C. Fifteen clean, dry, 250 ml polypropylene cups are weighed and poured into the bottom of the tray 6.00 D 0.03 g of fat without wetting the side walls. For 2 to 3 hours, the cups are kept at a temperature of 21 ° C to 10 ° C to set the fat.

Prepare a 0.12% solution of the test detergent at a temperature of 50-55 ° C and 100 ° C. Place 0.1 g in each of the five glass containers, which are sealed with a cap. The sealed vessels are placed in a water bath in a constant temperature room and the water bath temperature is set to 45-46 ° C so that the temperature of the solution in each vessel is 43 K 0,1 0.1 ° C. The procedure is similar for each tested detergent and for the standard detergent used for comparison.

The contents of the glass container are then poured into the cup along the side wall, taking care not to disturb the fat on the bottom and then allowing the cup to stand for half an hour at 21 ° C before being transferred to an ice bath for 10 minutes. . After cooling, a sediment line forms at the surface of the solution in the cup. This combination of shedding and subsequent cooling is performed for each cup and glass container combination. After 10 minutes each cup is emptied rapidly and the inside of the cup is dried to remove any material adhered to the walls of the cup between the rim and the fat line. The cup is then placed upside down on kitchen absorbent roll material for emptying for two hours at up to 15 minutes before drying in an oven at 30 ° C and for an additional hour at 50 ° C. The cups are then reweighed. The average weight difference between the original fat mass and the weight remaining after the test is then calculated for all five samples. This difference is divided by the weight difference obtained with the standard product to give a value that expresses the efficiency factor between the test product and the standard product. The products of the invention exhibit an efficiency factor of greater than about

1.3 preferably at least about 1.4.

For the purpose of the test, the standard product should have a fat removal efficiency at the same general level as the test product, at the same concentration. This can be accomplished by adjusting the weight ratio of liquid to solid grease composition so that the standard (reference) product provides 20-35% fat removal under test conditions, while the test product may have a fat removal rate of 20-80%. Grease of the same batch must be used for test and reference products.

3) Total foaming and foaming

Total foaming is the total volume of foam produced in the standard dishwashing test and is a measure of the observed foam-generating ability of the detergent. Suds mileage is a measure of the amount of dirt needed to reduce the foam of a test solution to a defined minimum under standard product concentration, temperature, and water hardness conditions. It expresses the observed useful life of the hand dishwashing solution. The foaming power of the detergent under identical test conditions was obtained using a prepared blend of food soiling and prepared grime in the described mechanical foaming test method.

Test conditions:

Product concentration

Water temperature

Water hardness

⁰ 0.12% C

2 ° Clark and 18 ⁰ Clark

Mixture of food soiling

Rice / chopped / cooked real meal 1x 392 g meat liver with garlic ¹ 1x 439 g rice pudding ² eggs ml 2% mixed fatty acid (CMFFA) in corn oil ix ml corn oil

Grease dirt cake blend g g sponge mix ³ g 2 MFFA in corn oil ¹ product from Master Foods. Kings Lynn, Norfolk, England Product ² by Ambrosia Creamery, Lifton. Devon, England ³ product of McDougalls Catering Foods Ltd .. Imperial Vay, Varton Grange, Reading. England x 4 g oleic acid. 4 g of linoleic acid. 2 g stearic acid, 5 g palmitic acid, 735 g pure corn oil

Test method

Four cylinders, each 300 mm long and 100 mm in diameter, arranged side by side and rotating about a central axis at 24 rpm, are used in the test. Each cylinder is filled with 500 ml of a 0.12% solution at 48 ° C. The outer two cylinders serve one of the products being compared and the inner two cylinders serve another product.

The rollers are allowed to rotate for 2 minutes, stopped and the initial foam is measured, and then a portion of dirt is typically added in 2 ml portions. After 1 minute, the rotation of the rollers is resumed and the rollers are allowed to rotate for 1 minute. The foam height is recorded and 2 ml of dirt is added to each cylinder. After 1 minute the rollers start to rotate again. This process continues until the height of the foam in the cylinder drops below 6 mm. The sum of all measured foam heights in each test (i.e., until the foam height drops below 6 mm) constitutes the total foam measured.

One product is designated as a control and the foam and foaming index values are calculated for other products in relation to the control product as follows ^:

Test product foam index = total test product foam »-------------------------------- X 100 total foam of the control product

Suds Mileage of the product under test Number of dirt additives in the product under test to reduce foam height below 6 mm = ----------------------------- --------------------- _x ioo number of dirt additives in the control product to reduce the foam height below 6 mm

The invention is illustrated in more detail by the following examples.

DETAILED DESCRIPTION OF THE INVENTION

Example 1

A series of nuclear surfactant systems are prepared comprising a mixture of an alkyl ethoxy sulfate surfactant and N-lauroyl-N-methylglucamine.

derived from primary alcohol p

Alkyl ethoxysulfate is up to 14 carbon atoms condensed with an average of 0.8 moles of ethylene oxide per mole of alcohol and a neutralized mixture of ammonium and magnesium ions to a content of 0.22 moles of magnesium per mole of alkyl ethoxysulfate. The simulated 30% nuclear surfactant product is first prepared in distilled water. A 0.12 t weight solution of this product is then formed either in soft water (2 ° dash) or hard water (18 ⁰ dash) and tested for ana IFT and in water hardness 2 ° dash for PPC grease removal using the methods described above. This procedure is performed on the ratios of alkyl ethoxy sulphates (AES) to alkyl glucamine (GA) 100-0, 75-25, 65 ^35, 50 50, and 0 -

100, the results are shown in the following table.

IFT (Pa.cm) weight ratio AES: GA Water hardness 100 = 0 75:25 65:35 50 = 50 25:75 0 100 2 ° 0.35 0.12 0.12 12:14 12:16 0.10 18 ° 0.21 0.09 0.07 0.12 12:06 0.07 PPC 2 ° 1.00 - 1.60 1.50 - 1.30

From the above values, it is apparent that the addition of alkylglucamine to the anide surfactant significantly improves the emulsification of the fats as evidenced by the IFT values and the treatment of greasy dirt as evidenced by the improved PPC soil removal values.

The above surfactant mixtures are also evaluated for overall foam height and suds mileage using the methods described above. However, the results are not compared with the comparative product, but are directly reported as total suds / suds mileage.

In the first paragraph, the letters have the following meaning:

And the hardness of the water 2 ⁰ Dotted, real dirt food

B greasy dirt

C hardness 18 ⁰ Comma, real food dirt

D greasy dirt

AES - GA weight ratio

100: 0 95: 5 ¹ 90:10 75:25 65:35 50:50 0 100 A 260 / 5.0 344 / 6.5 416 / 7.5 567/10 657/10 604 / 10.5 458 / 10.0 B 250 / 4.5 277 / 4.8 333 / 5.5 407 / 8.0 528 / 8.5 355 / 6.5 100 / 2.0 C 300 / 5.5 415 / 6.8 498 / 8.0 595 / 9.5 600 / 9.7 621/10 400 / 10.0 D 302 / 4.8 316 / 5.0 369 / 6.0 380 / 6.0 348 / 5.5 283 / 4.7 64 / 1.0

From the assessment of both grease removal and foaming under grease loading conditions, it is clear that the preferred blend ratio for both grease removal and foaming is the ratio of 75 to 25 alkylglucamine alkyl ethoxy sulfate and 50 to 50 alkylglucamine alkyl optimum results with optimum results in ratio 65 = 35. A 100% alkylglucamine system provides comparable fat removal values but a severe deficiency in total foaming and foaming especially under greasy dirt conditions.

Example 2

The following cleaning agents to E = are prepared

Composition A is a comparable commercial available liquid cleaning detergent, yet what means B, C. D and E are according to invention. A B C D E Cn.s linear alkylbenzene- sulfonate 6.5 - - - - KokoalkanoyI N-methyl-N -glúkamín - 12.5 10.0 8.0 12.8 Ci2-13alkyl (E0) on, esulfát 20.5 11.0 15.0 16.0 10.0 Ci2-13alkyl (E0> 3-sulfate ester - - - - 2.7 primary alcohol ethoxylate ¹ 4.0 6.0 4.0 8.0 7.0 fever ions 0.35 0.2 0.25 0.5 - C 12-14 alkyldimethylbetaine 1.5 4.0 3.0 2.0 2.0 kokomonoetano1am i d 3.8 - - - - C12-14alkyldimethylamine oxide - - 4.0 - - natriumkuménsulfonát 1.0 1.0 2.0 2.0 2.0 ethanol 4.5 5.0 5.0 5.0 5.0 urea 0.5 - - - - Water d 0 1 0 0%

a predominantly linear mixture of 9 to 11 carbon atoms containing an average of 10 ethylene oxide units per mole of alcohol and containing by weight less than 2% of unethoxylated alcohol

IFT, PPC and foaming values are specified for all detergents and are as follows ^:

IFT (Pa.cm)

A B C D E 2 ° Dash 12:15 0.08 12:08 0.09 0.08 18 ° Čiarkových 0.11 0.06 0.06 0.07 0.09 PPC 2 ° Dash 1.0 1.6 1.7 1.7 ON THE

total foam / foaming mixed dirt

A B C D E 2 ° comma 100/100 189/167 186/170 135/128 142/129 18 ° comma 100/100 145/140 177/153 121/119 138/150 greasy dirt 2 ° comma 100/100 132/129 130/132 123/122 150/150 18 ° comma 100/100 95/113 98/115 108/107 102/99

Industrial usability

A water-efficient and strongly foaming liquid or gel-free detergent free of builders in the form of a physically stable aqueous solution suitable for washing dishes and solid surfaces.

SPARE PARTY

Claims (24)

PATENT REQUIREMENTS (T 4 ^, () 7 ‘'' 'f) h» «. · VB 6 - in o> V o * 8 '»' <· Liquid or gel cleanser free of builders in the form of a physically stable aqueous solution, characterized in that it contains from 15 to 65% by weight, based on the composition as a whole, of a core surfactant composition containing by weight (a) 5 to 95% of a mixture of at least one water-soluble anionic surfactant sulphate or sulphonate salt b) 95 to 5% of a mixture of at least one compound of the formula R-CON-Ri of (CI) wherein is A linear hydrocarbon chain polyhydroxy hydrocarbon moiety having at least three hydroxyl groups bonded directly to the chain, said moiety being derived from glucose and mixtures thereof with maltose, with a maltose content of not more than 33% by weight of the mixture, R is a saturated or unsaturated alkyl group having 8 to 16 carbon atoms or a mixture thereof, and R 1 is C 1 -C 4 alkyl or C 2 -C 4 hydroxyalkyl. wherein a 0.12% by weight aqueous solution of a surfactant composition of this composition has 2 ° at a calcium-magnesium ratio of 3 to 1 at 48 ° C and a temperature of 48 ° (i) a decrease in the interfacial voltage (CIFT) of less than 0,2 Pa cm using tri-oline dirt having a purity of 99,7 ¾. (ii) a Grease Dirt Removal value in the polypropylene cup test (PPC) of at least about 1.4 fold, taking into account the value obtained in the same test at; using the same conditions using a 0.12 µL solution of at least one anionic surfactant alone. SPARE PARTY Liquid or gel cleaning composition according to claim 1, characterized in that. The polyhydroxy hydrocarbon moiety as component (b) is derived from glucose and mixtures thereof with maltose, the mixture containing not more than 25% maltose by weight. 3. A liquid or gel detergent composition according to claim 1, characterized in that. The composition of claim 1, wherein said composition comprises from about 20% to about 50% by weight of said mixture of nuclear surfactants. A liquid or gel cleanser according to claim 3, characterized in that. The composition of claim 1, wherein said composition comprises from about 22% to about 40% by weight of said mixture of nuclear surfactants. The liquid or gel cleaning composition of claim 1, wherein the core surfactant mixture comprises 20 to 80% by weight of component (a) and 80 to 20% of component (b). Liquid or gel cleaner according to claim 1, characterized in that. wherein the core surfactant mixture comprises 40 to 70% by weight of component (a) and 60 to 30% by weight of component (b). Liquid or gel cleanser free of builders in the form of a physically stable aqueous solution according to claim 1, characterized in that. containing from about 20% to about 50%, by weight of the composition as a whole, of a core surfactant composition comprising (a) 5 to 95% of a mixture of at least one water-soluble anionic surfactant selected from the group consisting of C 10 -C 16 alkyl ethoxy sulfates containing up to 6 moles of ethylene oxide per mole of alkyl ethoxy sulfate, C 10 -C 18 alkyl glyceryl ether sulfonates , C 10 -C 16 paraffin sulphonates. acyl-N-alkylglucamine sulfates having 9 to 17 carbon atoms in the acyl moiety and 1 to 4 carbon atoms in the alkyl moiety, and any mixtures thereof, SPARE PARTY b) 95 to 5% of a mixture of at least one compound of the formula R-CON-Ri I Z where means The polyhydroxy-hydrocarbon fraction derived from glucose and mixtures thereof with maltose, the maltose content of which is not more than 25% by weight of the mixture, R is selected from the group consisting of a saturated or unsaturated hydrocarbon group having 8 to 16 carbon atoms or a mixture thereof, and R 1 is C 1 -C 4 alkyl or C 2 -C 4 hydrocarbyl. wherein a 0.12% by weight aqueous solution of a surfactant composition of this composition has 2 ° at a 3: 1 ratio of calcium to magnesium at 48 ° C in water with a Lark Mineral Hardness (i) an interfacial voltage drop (IFT) of less than 0,2 Pa cm using a 99.7¾-grade triolein dirt. (ii) a PPC value of at least about 1.4 fold with respect to the value obtained in the same test under the same conditions using a 0.12% solution of at least one anionic surfactant alone. Liquid or gel cleaner according to claim 7, characterized in that:. The composition of claim 1, wherein said composition comprises from about 22% to about 40% by weight of said mixture of nuclear surfactants. A liquid or gel cleanser according to claim 7, characterized in that:. The composition of claim 1, wherein the mixture of core surfactants comprises from 20 to 80% by weight of component (a) and from 80 to 20% by weight. 1 (C) (b). The liquid or gel cleanser of claim 7, A SPARE PART, wherein the core surfactant mixture comprises 40 to 70% by weight of component (a) and 60 to 30% by weight of component (bi). The liquid or gel cleaning composition of claim 7, wherein component (a) is present. ) comprises a primary alkyl ethoxy sulphate surfactant having 12 to 14 carbon atoms in the alkyl moiety and having an average of at most 1.5 ethoxy groups per mole of alkyl ethoxy sulphate. Liquid or gel cleaning composition according to claim 7, characterized in that. The composition according to claim 1, wherein component (a) comprises a primary alkyl ethoxy sulfate surfactant having 12 to 14 carbon atoms in the alkyl moiety and having an average of 0.4 to 1.0 ethoxy groups per mole of alkyl ethoxy sulfate. 13. A liquid or gel cleanser according to claim 7, characterized in that. The composition according to claim 1, wherein the composition contains magnesium ions in an amount of up to 1.5% by weight, based on the cleaning agent as a whole. A liquid or gel cleanser according to claim 7, characterized in that. The composition according to claim 1, characterized in that it contains calcium ions in an amount of up to 1.0% by weight, based on the cleaning agent as a whole. A liquid or gel cleanser according to claim 7, characterized in that. The composition according to claim 1, wherein the sudsing agent is selected from the group consisting of alkyl monoalkanolamides and alkyldialkanolamides having from 10 to 16 carbon atoms in each alkyl moiety and from 2 to 3 carbon atoms in each alkanol moiety, alkylsulfobetaines having 12 to 16 carbon atoms in the alkyl moiety. (C 1 -C 4) alkyl and C 1 -C 4 alkyl (C 2 -C 4) alkyl and (C 2 -C 4) alkyl (C 4-Cial) alkyldialkylamine oxides. primary C 9 -C 12 alcohol ethoxylates REPLACEMENT PAGE in the alcohol fraction i and with moderate 7 to 12 ethylene oxide groups per mole of alcohol and mixtures thereof. A liquid detergent composition devoid of builders in the form of a physically stable aqueous solution according to claim 1, characterized by a week. comprising about 20 to about 50% by weight of the composition as a whole of a core surfactant composition comprising (a) 40 to 70% of a mixture of at least one water-soluble anionic surfactant selected from the group consisting of C 10 to C 16 alkyl ethoxy sulfates containing up to 6 moles of ethylene oxide per mole of alkyl ethoxy sulfate. C 10 -C 18 alkyl glyceryl ether sulfonates, C 10 -C 16 paraffin sulfonates, C 9 -C 17 acyl 1-N-alkylglucamine sulfates and C 1 -C 4 alkyl groups and any mixtures thereof, b) 60 to 30% of a mixture of at least one compound of the formula R-CON-Ri I Z where means The polyhydroxy hydrocarbon fraction derived from glucose and mixtures thereof with maltose, the maltose content by weight being not more than 5%. based on the mixture, R is selected from the group consisting of a saturated or unsaturated hydrocarbon group having 8 to 16 carbon atoms or a mixture thereof, and R 1 is C 1 -C 4 alkyl or C 2 -C 4 hydrocarbyl, and the composition comprises betaine as a suds enhancer and further; contains a primary alcohol condensed with an average of about 7 to 9 moles of ethylene oxide per mole of alcohol, each of which is present in an amount of 2 to 8% by weight, A REPLACEMENT PAGE wherein a 0.12% by weight aqueous solution of a surfactant composition of this composition has 2 ° at a water having a Sorbitan mineral hardness at a 3: 1 ratio of calcium to magnesium at 48 ° C (i) an interfacial voltage drop (IFT) of less than 0,2 Pa cm using a 99,7 µl triolein dirt; (ii) a PPC value of at least approximately 1,4 times the level of grease removal, taking into account; obtained in the same test under the same conditions using a 0,12% solution of at least one anionic surfactant alone. 17. A liquid detergent composition according to claim 16 comprising a hydrotropic ingredient selected from the group consisting of urea, a C1 -C3 aliphatic alcohol, a lower alkyl benzene sulfonate, a lower dialkyl benzene sulfonate, and a mixture thereof i. 18th the Liquid cleanser composition according to claim 16 characterized because of It contains ingredient supplying opacity. 19th Kvapa1ný cleaning i device according to claim 16th characterized the by having value pH 6.0 to 8.5. 20. A builder-free liquid detergent composition in the form of a physically stable aqueous solution according to claim 1 comprising 20 to 50% by weight based on the composition as a whole of a core surfactant composition containing by weight (a) 40 to 70% of a mixture of water-soluble C 10 to C 16 alkyl ethoxy sulphates containing up to 6 moles of ethylene oxide per mole of alkyl ethoxy sulphate; b) 60 to 30% of a mixture of at least one compound of the formula R-CON-Ri REPLACEMENT SIDE where it stands for Of the polyhydroxy-hydrocarbon fraction derived from glucose and from their mixtures with maltose, the maltose content by weight not exceeding 5%, based on the mixture, R is a linear or substantially linear C 12 -C 14 alkyl group The R 1 methyl group and the composition further comprise from about 0.3% to about 0.5% by weight of calcium ions and from about 0.5% to about 1.0% by weight of magnesium ions, and from about 2% to about 8% by weight, respectively. with an average of about 7 to 9 moles of ethylene oxide per mole of alcohol, wherein a 0.12% by weight aqueous solution of a surfactant composition of this composition has a water value of 2 ° at a calcium-magnesium ratio of 3-1 and a temperature of 48 ° (i) an interfacial voltage drop (CIFT) of less than 0.2 Pa cm using a 99.7% pure triolein dirt; (ii) a PPC value of at least approximately 1,4-fold with respect to the value obtained in the same test under the same conditions using a 0,12% solution of at least one anionic surfactant alone. 21. A detergent composition as claimed in claim 1 comprising a mixture of nonionic and anionic detergent surfactants, wherein the nonionic surfactant is a fatty acid polyhydroxyaroid selected from the group consisting of N-acyl-N-alkylglucamine sulfates having 9 to 17 carbon atoms in the acyl group. an alkyl moiety of 1 to 4 carbon atoms i. 22. A cleaning composition according to claim 21, characterized in that. The composition of claim 1, wherein said additive comprises a suds booster additive comprising alkanolamides, betaine surfactants, sulfobetaine surfactants, amine oxide surfactants, and mixtures thereof. SPARE PARTY The liquid cleaning composition of claim 21. The liquid dishwashing composition of claim 22. 25. A liquid dishwashing composition according to claim 22, wherein said liquid dishwashing composition is as claimed in claim 22. The composition according to claim 1, characterized in that it contains calcium ions, magnesium ions or mixtures thereof in addition. 26. A method of washing dishes, characterized in that the dishes are contacted with a water bath containing a liquid dishwashing composition according to claim 21. A method for washing dishes, characterized in that the dishes are contacted with a water bath containing a liquid dishwashing composition according to claim 22.