EP3472291A1

EP3472291A1 - Concentrated isotropic liquid detergents containing polymers

Info

Publication number: EP3472291A1
Application number: EP17733753.2A
Authority: EP
Inventors: Anna KLEMMER; Peter Schmiedel; Ulrich Pegelow
Original assignee: Henkel AG and Co KGaA
Current assignee: Henkel AG and Co KGaA
Priority date: 2016-06-16
Filing date: 2017-06-14
Publication date: 2019-04-24
Anticipated expiration: 2037-06-14
Also published as: EP3472291B1; WO2017216212A1

Abstract

The invention relates to highly concentrated isotropic liquid detergents having a surfactant content of 30 wt. % and more, also containing organic, non-surfactant constituents, preferably a polymer, and having an optimised product stability which is possible due to a specifically adapted, defined surfactant system. The invention also relates to methods for washing textiles using the described detergents and to the use thereof.

Description

"Concentrated Isotropic Liquid Detergent Containing Polymers"

The present application is directed to highly concentrated isotropic liquid detergents with surfactant contents of 30% by weight and more, which additionally contain organic, non-surfactant constituents and have optimized product stability, which is made possible by a specially adapted surfactant system. Also included are processes for washing textiles using the detergents described and their use.

Liquid detergents are known in the art and have become increasingly popular with consumers in recent years as they offer a number of advantages over solid detergents. These include, among other things, the simpler dosage, addition and dissolution in the wash liquor. In addition, they are perceived as safer and less aggressive to the textiles and the environment. Especially for the washing of colored textiles, they have gained more and more popularity since their market launch.

There is a general trend in the market towards more highly concentrated liquid detergents, since these are associated with lower use of resources, which is in particular due to a lower transport weight and reduced bottle size. In addition, such highly concentrated agents are preferred by consumers because they require small storage space in the households.

Although such agents are advantageous in terms of handling and consumer acceptance, the known agents suffer from disadvantages in terms of their stability, especially with longer storage times. These disadvantages are further compounded by the trend towards higher concentrated products. For highly concentrated liquid detergents, the challenge is to accommodate more of the required top performers (including surfactants, polymers, enzymes, chelants, perfume, optical brightener) in a smaller volume of liquid.

In order to achieve a good washing performance from the consumer's point of view, polymeric ingredients are increasingly used in modern liquid detergents. Often these are essentially nonionic or anionic polymers of different functionality. Important groups are so-called soil release polymers, dye transfer inhibitors (DTIs), anti-redeposition agents and polymeric dispersants. A particular challenge is to ensure a stable formulation of the polymers, since the compatibility of the polymeric ingredients of a liquid formulation decreases with increasing surfactant concentration. As a result, cloudiness occurs, Sedimentation or phase separations on. These affect in particular the aesthetic appearance of the recipe.

There is therefore a need for improved highly concentrated liquid detergent formulations which have improved properties in view of the problems mentioned, i. in particular, allow to stably formulate larger quantities of polymeric constituents.

It has now surprisingly been found that the above-mentioned disadvantages of highly concentrated liquid detergents, i. detergents with surfactant contents of 30% by weight or more, by using a specific surfactant combination which comprises the stable formulation of non-surfactant organic ingredients which adversely affect the stability of the formulation, such as, in particular, polymeric ingredients of 0.5% by weight or more.

In a first aspect, therefore, the present invention relates to an isotropic liquid detergent comprising

(A) at least 30% by weight, based on the total weight of the composition, of a surfactant mixture comprising one or more anionic surfactant (s) A, one or more nonionic surfactant (s) N and at least one nonionic, amphoteric or zwitterionic surfactant N 1; and

(B) at least 0.5 wt .-% of at least one organic, non-surfactant compound P, which adversely affects the stability of the liquid detergent, wherein the non-surfactant compound has a destabilizing factor DF of> 0;

wherein the concentration of anionic surfactant A is up to 65% by weight, preferably up to 55% by weight, based on the total weight of the composition; and

the concentration of surfactants N and N1 being at least 5% by weight, preferably 5 to 50% by weight, more preferably 5 to 25% by weight, based on the total weight of the composition;

wherein the weight ratio of the surfactants N1 and N (N1: N) is <1;

wherein the concentration of the surfactant N1 is at least 1% by weight based on the total weight of the composition;

wherein the at least one surfactant N1, if it is a nonionic surfactant, has a Griffin HLB value greater than the HLB value of the one or more nonionic surfactant (s) N and at least 12, or if it is amphoteric or zwitterionic surfactant has Davies HLB value> 5; and

wherein the at least one surfactant N1 has a stabilizing factor SBF of> 0, preferably> 0.1, more preferably> 0.5, more preferably> 0.8 and most preferably> 1. In a further aspect, the present invention relates to the use of a liquid detergent according to the invention for washing textiles.

In a further aspect, the present invention relates to a process for the cleaning of textiles, characterized in that in at least one process step, a liquid detergent according to the invention is used.

These and other aspects, features, and advantages of the invention will become apparent to those skilled in the art from a study of the following detailed description and claims. Any feature of one aspect of the invention may be employed in any other aspect of the invention. Further, it is to be understood that the examples contained herein are intended to describe and illustrate the invention, but not to limit it, and in particular that the invention is not limited to these examples. All percentages are by weight unless otherwise specified, based on the total weight of the compositions / composition. Numeric ranges specified in the format "from x to y" include the above values.If multiple preferred numeric ranges are specified in this format, it is understood that all ranges resulting from the combination of the various endpoints, also be recorded.

"At least one" as used herein refers to 1, 2, 3, 4, 5, 6, 7, 8, 9 or more In the context of components of the compositions described herein, this indication does not refer to the absolute amount The term "at least one anionic surfactant" therefore means, for example, one or more different anionic surfactants, ie one or more different types of anionic surfactants. The amounts given, together with quantities, refer to the total amount of the corresponding type of ingredient.

"About", "approximately." or "approximately" as used herein in reference to a numerical value refers to the corresponding numerical value ± 10%, preferably ± 5%.

"Isotropic" as used herein with respect to the agents described refers to optically isotropic agents, that is, agents that appear homogeneous and monophasic when viewed with the naked eye.

The detergents described herein may be detergents for textiles or natural fibers. Detergents in the context of the invention also include washing aids which are metered into the actual detergent during manual or automatic textile washing in order to achieve a further effect or to enhance an effect. Furthermore, detergents in the context of the invention also include textile pretreatment and post-treatment agents, ie those agents with which the laundry item is brought into contact before the actual wash, for example for dissolving stubborn soiling, and also means that in a the actual textile laundry downstream step give the laundry further desirable properties such as comfortable grip, crease resistance or low static charge. Amongst others, the fabric softeners are calculated. In preferred embodiments, however, it is a textile detergent.

In various embodiments of the invention, the liquid detergents have a total surfactant content of 30 to 70% by weight, preferably 35-60% by weight. "Total surfactant content" refers to the sum of all surfactant compounds used, i.e., in particular, the sum of the amounts of surfactants A, N and N1. Any soaps present are also considered to fall within the term "anionic surfactants" and are included in the total surfactant content.

As "soaps" as used herein, the water-soluble metal, ammonium or alkanolammonium salts, especially the sodium or potassium salts, the saturated and unsaturated higher fatty acids, the resin acids of the rosin (yellow rosin soaps) and the naphthenic acids, which may be solid or unsaturated semisolid mixtures are mainly used for washing and cleaning purposes.

In preferred embodiments, the liquid detergents described herein contain no further surfactants beyond the surfactant mixture, i. the total surfactant content corresponds to the amount of surfactant mixture.

Particularly suitable anionic surfactants A are those of the sulfonate type, preferably alkylbenzenesulfonates, olefin sulfonates, i. Mixtures of alkene and hydroxyalkanesulfonates and disulfonates, as obtained for example from monoolefins having 12 to 18 carbon atoms with terminal or internal double bond by sulfonation with gaseous sulfur trioxide and subsequent alkaline or acidic hydrolysis of the sulfonation into consideration. Also suitable are alkanesulfonates having 12 to 18 carbon atoms and the esters of α-sulfo fatty acids (ester sulfonates), for example the α-sulfonated methyl esters of hydrogenated coconut, palm kernel or tallow fatty acids.

Alkylbenzenesulfonates are preferably selected from linear or branched alkylbenzenesulfonates of the formula in which R ^' and R ^"are independently hydrogen or alkyl and together contain from 9 to 19, preferably 9 to 15 and in particular 9 to 13 carbon atoms A particularly preferred representative is sodium dodecylbenzylsulfonate.

Alk (en) ylsulfates are the salts of sulfuric acid half esters of fatty alcohols having 12 to 18 carbon atoms, for example coconut fatty alcohol, tallow fatty alcohol, lauryl, myristyl, cetyl or stearyl alcohol or the oxo alcohols having 10 to 20 carbon atoms and those half-esters of secondary alcohols these chain lengths are preferred. Of washing technology interest, the alkyl sulfates having 12 to 16 carbon atoms and alkyl sulfates having 12 to 15 carbon atoms and alkyl sulfates having 14 and 15 carbon atoms are preferred.

Also particularly suitable are the secondary alkanesulfonates. "Secondary" as used herein refers to the well-known chemical meaning of this term, and indicates that the carbon atom to which the sulfonate group is covalently bonded continues to have two covalent bonds to two organic (alkyl) radicals, ie carbon atoms, and having a covalent bond to a hydrogen atom Together with the carbon atom to which they are attached, the two organic (alkylic) radicals form a linear or branched alkyl having 1 to 50 carbon atoms.

In various embodiments of the invention, secondary alkanesulfonate is one of the formula

R is CH (S0 ₃ X ⁺ ) R ² , wherein each of R and R ^{2 is} independently a linear or branched alkyl of 1 to 20 carbon atoms and with the carbon atom to which they are attached form a linear or branched alkyl, preferably 10 K ^+, NH to 30 carbon atoms, preferably having 10 to 20 carbon atoms and X ⁺ is selected from the group Na ^+, ₄ ^+, / ₂ Zn ²⁺ / ₂ Mg ²⁺ / ₂ Ca ²⁺ / ₂ Mn ^{2 +} and mixtures thereof, preferably Na ⁺ . Particularly preferred are secondary alkanesulfonates of the formula

H3C- (CH2) n-CH (S03-X ⁺⁾ - _(CH2) m-CH3, where m and n are independently an integer between 0 and 15. Preferably, m and n are independently an integer of 7-15, and preferably between 1 1 and 14. X ⁺ is further selected from the group Na ^+, K ^+, NH ₄ ⁺ ^_1/2 Zn ²⁺ ^_1/2 mg ^2+, ^_1/2 Ca ^2+, ^_1/2 Mn ^2+, and mixtures thereof, preferably Na ^+.

Further suitable anionic surfactants are those of the sulfate type and in particular the alkyl ether sulfates.

Preferred alkyl ether sulfates are those of the following formula wherein R ^{3 is} a linear or branched alkyl having 5 to 30 carbon atoms, preferably having 7 to 25 carbon atoms, and preferably having 10 to 19 carbon atoms. Further, AO in the above formula is an ethylene oxide (EO) or propylene oxide (PO) group, preferably an ethylene oxide (EO) group, and n is an integer of 1 to 50, preferably 1 to 20, and preferably of 2 to 10 is. X ⁺ is any cation and is preferably selected from the group Na ⁺ , K ⁺ , NH ₄ ⁺ , Mn ² and mixtures thereof, more preferably Na ⁺ .

In the above formula, R ^{3 is} a linear or branched, substituted or unsubstituted alkyl radical. In a preferred embodiment of the present invention, R ^{3 is} a linear or branched, preferably unsubstituted, alkyl radical having from 5 to 30 carbon atoms, preferably from 7 to 25 carbon atoms and especially from 10 to 19 carbon atoms. Preferred radicals R ³ are selected from decyl, undecyl, dodecyl, tridecyl, tetradecyl, pentadecyl, hexadecyl, heptadecyl, octadecyl, nonadecyl and mixtures thereof, with the even number of carbon atoms being preferred. Particularly preferred radicals R ³ are derived from fatty alcohols having 12 to 18 carbon atoms, for example coconut fatty alcohol, tallow fatty alcohol, lauryl, myristyl, cetyl or stearyl alcohol or oxo alcohols having 10 to 19 carbon atoms.

AO is an ethylene oxide (EO) or propylene oxide (PO) moiety, preferably an ethylene oxide moiety. The index m is an integer from 1 to 50, preferably 2 to 20 and preferably 2 to 10. In particular, m is 3, 4, 5, 6 or 7. The composition according to the invention can comprise mixtures of nonionic surfactants which have different degrees of ethoxylation.

The alkyl ether sulfate is preferably one of the formula O

H ₃ CJ ^ SO ₃ ^" Na ⁺ where k = 1 1 to 19, n = 2, 3, 4, 5, 6, 7 or 8. Very particularly preferred representatives are Na fatty alcohol ether sulfates having 12 to 18 carbon atoms and 2 EO ( k = 1 1 to 13, n = 2) The degree of ethoxylation given represents a statistical average which, for a particular product, may be an integer or a fractional number Generally, the degrees of alkoxylation indicated represent statistical averages for a particular product Whole or fractional number Preferred alkoxylates / ethoxylates have a narrow homolog distribution (narrow rank ethoxylates, NRE).

Further suitable anionic surfactants are, for example, the bisalkylsulfosuccinates.

Preferred anionic surfactants are the alkylbenzenesulfonates and the alkyl ether sulfates, and especially the combinations of both. It goes without saying that in each case several different representatives of the respective surfactant class can be used. Soaps are considered in the context of this invention to be anionic surfactants, i. the indicated amounts of anionic surfactants include any soaps present.

In all the anionic surfactants described above, any cation may be included to balance the negative charge of the sulfonate group. Preferably, the cation is selected from the group Na ⁺ , K ⁺ , NhV, Zn ²⁺ , V Mg ²⁺ , V Ca ²⁺ , V Mn ²⁺ and mixtures thereof, more preferably Na ⁺ .

The anionic surfactants A are preferably present in the agents according to the invention in amounts of at least 10% by weight, preferably at least 20% by weight, based on the total weight of the composition. Preferred amount ranges are 10 to 65, more preferably 10 to 55 or 20 to 65, still more preferably 20 to 55 wt%. Most preferred are concentrations in the range of 25 to 35 weight percent. The amounts given are based on the total amount of anionic surfactants contained in the composition.

The nonionic surfactants N and when N1 is a nonionic surfactant also N1 can be selected from:

Alkyl ethers, especially fatty alcohol alkoxylates, such as fatty alcohol ethoxylates

Alkyl (poly) glycosides (APG) and addition products of alkylene oxide (s), in particular propylene oxide / ethylene oxide, to alkyl (poly) glycosides

polyol fatty acid esters,

(alkoxylated) triglycerides, (alkoxylated) fatty acid alkyl esters,

gemini

Sorbitan fatty acid esters and addition products of alkylene oxide (s), in particular propylene oxide / ethylene oxide, with sorbitan fatty acid esters, such as, for example, the polysorbates (ethoxylated polysorbates),

Sugar fatty acid esters and addition products of alkylene oxide (s), in particular propylene oxide / ethylene oxide, with sugar fatty acid esters,

Addition products of alkylene oxide (s), in particular propylene oxide / ethylene oxide, to fatty acid alkanolamides and fatty amines,

Fatty acid N-alkyl polyhydroxyamides, in particular fatty acid N-alkylglucamides, and N-alkylglyconamides, in particular N-alkylgluconamides.

In various embodiments, the nonionic surfactants may comprise at least one alkyl ether. In a preferred embodiment of the invention, the nonionic surfactant agents described herein contain at least one fatty alcohol alkoxylate having the formula below

R ^{4 is} -O- (AO) _m -H, wherein R ^{4 is} a linear or branched alkyl radical, AO is an ethylene oxide (EO) or propylene oxide (PO) moiety and m is an integer from 1 to 50. In the above formula, R ^{4 is} a linear or branched, substituted or unsubstituted alkyl radical. In a preferred embodiment of the present invention, R is a linear or branched, preferably unsubstituted, alkyl radical having from 5 to 30 carbon atoms, preferably from 7 to 25 carbon atoms and especially from 10 to 19 carbon atoms. Preferred radicals R are selected from decyl, undecyl, dodecyl, tridecyl, tetradecyl, pentadecyl, hexadecyl, heptadecyl, octadecyl, nonadecyl and mixtures thereof, with the even number of carbon atoms being preferred. Particularly preferred radicals R ⁴ are derived from fatty alcohols (fatty alcohol alkoxylates) having 12 to 19 carbon atoms, for example coconut fatty alcohol, tallow fatty alcohol, lauryl, myristyl, cetyl or stearyl alcohol or oxo alcohols having 10 to 19 carbon atoms.

AO is an ethylene oxide (EO) or propylene oxide (PO) moiety, preferably an ethylene oxide moiety. The index m is an integer from 1 to 50, preferably 2 to 20 and preferably 2 to 10. In particular, m is 3, 4, 5, 6 or 7. The composition according to the invention can comprise mixtures of nonionic surfactants which have different degrees of ethoxylation. In summary, particularly preferred fatty alcohol alkoxylates are those of the formula with k = 9 to 17, m = 3, 4, 5, 6, or 7. Very particularly preferred representatives are fatty alcohols having 10 to 18 carbon atoms and having 5 or 7 EO (k = 1 1 to 17, m = 5 or 7 ).

Such fatty alcohol ethoxylates with 7 EO 45-7 are under the trade names Dehydol LT7 ^® (Cognis), Lutensol ^® A07 (BASF) Lutensol ^® M7 (BASF), and Neodol ^® (Shell Chemicals).

Suitable alkyl (poly) glycosides are in particular those of the formula R ⁵ O- [G] _P in which R ^{5 is} a linear or branched alkyl having 4 to 26, preferably 8 to 20, more preferably 8 to 18, 8 to 10 or From 12 to 16 carbon atoms, G is a sugar residue having 5 or 6 carbon atoms and p is a number from 1 to 100, preferably 1 to 10.

G stands for residues of sugars with 5 (pentoses) or 6 (hexoses) carbon atoms, whereby the sugars can be Ketosen or Aldosen. Preferred monosaccharides include, but are not limited to, glucose, galactose, fructose, mannose, or ribose, especially glucose. In addition to the monosaccharides, G may also be sugar derivatives, in particular sugar alcohols, sugar acids, amino sugars (glycosamines) or thiosugars. Sugar alcohols result from the corresponding monosaccharide by reduction of the aldehyde or ketone function, for example, glucose yields sorbitol (glucitol) and mannose mannitol. Sugar acids result from the corresponding monosaccharide by oxidation of the aldehyde function (aldonic acids) or a terminal hydroxyl function (uronic acids) or both (aldar acids), for example, glucose gives rise to gluconic acid, glucuronic acid or glucaric acid. Amino sugars are obtained by replacing a hydroxyl function with an amino function. A preferred example is glucosamine. Thiosugars result from the replacement of a hydroxyl function by a thiol function. An example is thioglucose.

It is to be understood that even though the sugars and sugar derivatives are described as such, they appear as sugar residues in the alkyl (poly) glycosides of the formula given above and the R ^{5 group} replaces a hydrogen atom in the corresponding sugar or sugar derivative. The degree of oligomerization p can be from 1 to 100, preferably from 1 to 10, where each G can independently stand for a simple sugar. When p is 2 or more, then the various units G are preferably linked together via glycosidic linkages. It may be preferred that the R ^{5 group is} attached to a terminal sugar moiety, but it may also be attached to a non-terminal sugar moiety in a corresponding oligomer.

When p = 2, the sugar residue is a disaccharide residue. For example, one G may be glucose and the second G fructose to form sucrose (α-D-glucopyranosyl- (1 -2) -β-D-fructofuranoside). It is preferred, however, that all G in a molecule be the same simple sugar, such as glucose. Examples of suitable disaccharides include, without limitation, maltose (α-glucopyranosyl- (1-> 4) -cr-D-glucopyranose), isomaltose fa-D-glucopyranosyl- (1-> 6) -a-D-glucopyranose) and lactose ( / 3-D-galactopyranosyl- (1-> 4) -D-glucopyranose).

When p = 3, the sugar residue is a trisaccharide residue. Examples of suitable trisaccharides include, but are not limited to, raffinose, panose, and especially maltotriose.

When p = 4, the sugar residue is a tetrasaccharide residue, particularly preferred is maltotetraose.

When p = 5 or more, the units are preferably glucose units, especially those linked 1, 4-glycosidically.

In all embodiments in which p is 2 or more, single, multiple or all sugar units may be replaced by the corresponding sugar derivatives defined above. For example, aminoglycosides and thioglycosides, in which the bond to the next unit via the nitrogen or the sulfur atom, are used.

Particularly preferred alkyl (poly) glycosides are derived from glucose and can be described by the formula:

in which n represents 7 to 15, in particular 7 to 9 or 1 to 15, and p represents numbers of 1 to 100, preferably 1 to 10. The degree of oligomerization p in the formulas given above is preferably <8, more preferably <6, even more preferably <4 and in particular <2. Particularly preferred surfactants are those in which p is from 1.4 to 1.8. These refracted degrees of oligomerization are realized by mixtures containing varying amounts of surfactants of the above formulas in which p represents the single molecule as an integer, preferably 1, 2, 3 or 4.

Examples of particularly suitable surfactants include, without limitation:

n-decyl or n-dodecyl-β-D-maltoside;

n-octyl, 2-ethylhexyl, n-decyl or n-dodecyl-β-D-glucoside; and

n-octyl, 2-ethylhexyl, n-decyl or n-dodecyl-α-D-glucoside;

Detergents according to the invention may contain, for example, Ce-IE, in particular Ce-io or Ci2-16-alkyl oligo (1, 4) glucoside. Suitable alkyl (poly) glycosides are available, for example, under the trade names Plantacare® or Plantaren® from BASF (BASF SE, DE) and include, among others, Plantacare® 220 UP (APG 220 UP) and Plantaren® 1200 UP NP (APG 600 UP) ,

Sugar fatty acid esters may be compounds of the formula R ⁵ C (O) 0- [G] _P where R ⁵ p and G may be as defined above for the alkyl polyglycosides. However, R ⁵ preferably contains 7 to 19, more preferably 7 to 17, 7 to 9 or 1 1 to 15 carbon atoms. An example of such compounds is sucrose cocoate (INCI: sucrose-cocoate), ie the ester of sucrose with coconut oil-derived fatty acids.

In addition to or instead of the sugar fatty acid esters, it is also possible to use the corresponding polyol fatty acid esters which result from the use of the corresponding sugar alcohols instead of the sugars. Examples of these are sorbitol esters. These may also satisfy the above-mentioned formula R ⁵ C (0) 0- [G] _P , but G is a corresponding polyol, in particular a sugar alcohol. Also suitable are sorbitan fatty acid esters, ie esters of 1, 4 sorbitan with 1-4, preferably 1 or 3 esterified fatty acid residues, in particular C12-18 fatty acids, especially those selected from laurate, palmitate, stearate and oleate. These may also be alkoxylated, in particular, ethoxylated, such as the polysorbates.

Also suitable are fatty acid N-alkyl polyhydroxyamides, in particular fatty acid N-alkylglucamides, ie amides of fatty acids with the sugars derived from sugars. Usually, such compounds are obtained by reductive amination of a reducing sugar with ammonia, an alkylamine or an alkanolamine and subsequent acylation with a fatty acid, a fatty acid ester or a fatty acid chloride. Examples of suitable compounds are of the formula R ⁶ C (O) NR ⁷ Z wherein R ^{6 is} a linear or branched, saturated or unsaturated alkyl group having 7 to 21 carbon atoms, Z is a Polyhydroxy hydrocarbon having at least three hydroxyl or alkoxy groups, and R ^{7 is} ci- Ce-alkyl, a group of the formula - (CH ₂ ) x NR ⁸ R ⁹ or R ⁰ O (CH ₂ ) n -, wherein R ⁸ and R ⁹ Ci C ₄ alkyl or C ₂ -C ₄ hydroxyalkyl, R ^{0 is} C 1 -C ₄ alkyl, n is a number from 2 to 4 and x is a number from 2 to 10. Particular preference is given to those compounds in which R ^{6 is} C 7 -C 17 -alkyl, preferably linear and saturated, R ^{7 is} methyl and Z is a residue of the formula -CH 2 - (CHOH) - (CHOH) - (CHOH) -CHOH) which is derived from glucose. CH20H is. Particularly preferred are Ci2-Ci ₈ acyl-N-methylglucamide, such as Ci2-acyl-N-methylglucamide.

Also suitable are N-alkylglyconamides, in particular N-alkylgluconamides, ie amides of alkylamines with the sugars derived from sugars. Exemplary compounds satisfy the formula R ⁶ NR ⁷ C (O) Z wherein R ⁶ , R ⁷ and Z are as defined above, where R ^{7 can} also be H and not Z alone but the group C (0) Z in total may be a residue derived from a sugar such as glucose, such as -C (O) - (CHOH) - (CHOH) - (CHOH) -CHOH) - CH 2 OH. Examples of suitable compounds are N-Cs-Os-alkyl-D-gluconamides, such as N-octyl, N-decyl and N-dodecyl-D-gluconamides and the corresponding N, N-dialkyl-D-gluconamides, in particular N-Cs-C-is-alkyl-N-methyl-D-gluconamides.

Also suitable are fatty acid amidoalkoxylates of the formula R -CON (R ² ) (R ¹³ ), where R is an alkyl group or alkenyl group having 7 to 21 carbon atoms, R ^{2 is} hydrogen or a group - (AO) x H, R ^{3 is} a group - (AO ) xH, A is a group of the formulas -C2H4-, -C3H6- or -C4H8- and x is a number from 1 to 20.

In addition, alkoxylated fatty acid alkyl esters are suitable, especially those of the formula R ⁴ CO- (OCH ₂ CHR ⁵ ) wOR ¹⁶ , in the R ⁴ CO for a linear or branched, saturated and / or unsaturated acyl radical having 6 to 22 carbon atoms, R ^{5 is} hydrogen or methyl and R ^{6 is} linear or branched alkyl radicals having 1 to 4 carbon atoms and w is 1 to 20.

Also suitable are hydroxy mixed ethers, especially those of the formula

R ^{7 is} -O- (CH ₂ -CH (R ⁸ ) -O) w- (CH ₂ -CH (R ⁹ ) -O) x- (CH ₂ -CH (R ²⁰ ) -O) _y - (CH ₂ -CH ( R ² ) -O) zR ²² where

R ^{7 is} H or, preferably, a linear or branched hydrocarbon radical having 2 to 26 carbon atoms;

each of R ⁸ , R ⁹ , R ²⁰ and R ² is independently selected from -H, -CH ₃ , -CH 2 CH ₃ , -CH 2 CH 2 CH ₃ , -CH (CH ₃ ) 2, preferably -H or -CH ₃ ;

R ^{22 is} selected from -CH ₂ CH (OH) R ²³ ;

R ^{23 is} a straight-chain or branched, saturated or mono- or polyunsaturated C 2-6 -alkyl or alkenyl radical; and

w, x, y and z are values between 1 and 120, where x, y and / or z can also be 0. In certain embodiments, in such surfactants R ^{7 is} a linear or branched hydrocarbon radical having from 2 to 26 carbon atoms, R ⁸ is H, R ²² is -CH ₂ CH (OH) R ²³ , where R ^{23 is} a straight-chain or branched, saturated or or polyunsaturated C6-26-alkyl or alkenyl radical and w = 1 to 120, preferably 10 to 80, in particular 15 to 40 and x, y, z = 0. Examples of such surfactants are the C4-22 fatty alcohol (EO) io-8o-2-hydroxyalkyl ethers, in particular the C8-12 fatty alcohol (EO) 22-2-hydroxydecyl ethers and the C4-22 fatty alcohol (EO) 4-ol 8o-2-hydroxyalkyl ethers.

Alternatively, R ⁷ may be a linear or branched hydrocarbon radical having 2 to 26, preferably 4 to 18 carbon atoms, y and z are 0, R ⁸ is CH ₃ and R ^{9 is} H, R ²² is -CH ₂ CH (OH) R ²³ , wherein R ^{23 is} a straight-chain or branched, saturated or mono- or polyunsaturated C 6-26 -alkyl or alkenyl radical, preferably having 8 to 14 carbon atoms, and w = 1 or 2 and x = at least 15. Examples of such surfactants are the C2-26 fatty alcohol (PO) i (EO) is-4o-2-hydroxyalkyl ethers, in particular the coco fatty alcohol (PO) i (EO) 22-2-hydroxydecyl ethers. In alternative embodiments, R ⁸ can also be H and R ^{9 is} -CH ₃ , -CH ₂ CH ₃ , -CH 2 CH 2 -CH ₃ , or -CH (CH 3) 2, but preferably -CH ₃ . R ⁷ and R ²² / R ^{23 are} as defined above, but w and x independently represent values between 1 and 32, with nonionic surfactants having R ⁹ = -CH 3 and values of w of 15 to 32 and x of 0 and 2 (With mixtures of such products also numerical values between 0 and 2) are very particularly preferred.

As alternative (zwitterionic / amphoteric) surfactants N1, for example, amine oxides can be used. As amine oxide, in principle all amine oxides established for this purpose in the prior art are compounds which have the formula RR ² R ³ NO, wherein each R, R ² and R ³ independently of the others is an optionally substituted hydrocarbon chain having 1 to 30 carbon atoms , usable. Particularly preferred amine oxides are those wherein R is alkyl of 12 to 18 carbon atoms and R ² and R ^{3 are} each independently alkyl of 1 to 4 carbon atoms, especially alkyl dimethylamine oxides of 12 to 18 carbon atoms. Exemplary representatives of suitable amine oxides are N-cocoalkyl-N, N-dimethylamine oxide, N-tallowalkyl-Ν, Ν-dihydroxyethylamine oxide, myristyl / cetyldimethylamine oxide or lauryldimethylamine oxide.

Other suitable amphoteric / zwitterionic surfactants are the betaines and sulfains. Betaines are preferably compounds of the formula (R ⁱⁱⁱ ) (R ^iv ) (R ^v ) N ⁺ CH 2 COO ^_ in which R ^{i is} an alkyl radical optionally interrupted by hetero atoms or heteroatom groups having 8 to 25, preferably 10 to 21 carbon atoms and R ^iv and R ^{v are} identical or different alkyl radicals having 1 to 3 carbon atoms, in particular compounds of the formula

R ²⁴ -C (O) -NH- (CH ₂ ) 3 -N ⁺ (CH ₃ ) 2 -CH 2 -COO- wherein R ^{24 is} a linear or branched hydrocarbon radical having 2 to 26, preferably 5 to 21 carbon atoms, preferably a straight-chain or branched, saturated or mono- or polyunsaturated C2-26-alkyl or alkenyl radical, preferably having 5 to 21 carbon atoms. Examples are C 1 -C 8 -alkyl-dimethylcarboxymethyl betaine and C 5 -C 7 -alkylamidopropyl-dimethylcarboxymethylbetaine.

Sultaines are, for example, compounds of the formula

R ^{24 is} -C (O) -NH- (CH ₂ ) 3 -N ⁺ (CH ₃ ) 2 -CH 2 -CH (OH) -CH 2 -SO 3 wherein R ^{24 is} as defined above.

The nonionic surfactants N may in various preferred embodiments have an HLB value of <12, in certain embodiments also <1 1, <10, <9, <8 or <7. The HLB value is a measure of the balance between hydrophilic and hydrophobic moieties in a surfactant and is herein designated Griffin, in particular for all nonionic surfactants, unless otherwise specified (Griffin, WC: "Classification of surface active agents by HLB"). J. Soc., Cosmet., Chem., 1, 1949.) If several nonionic surfactants N are contained in the liquid detergent, it is preferred that the HLB value of the corresponding mixture of nonionic surfactants is less than or equal to 12, preferably the HLB Value of each individual nonionic surfactant N is less than or equal to 12. Examples of such surfactants are low ethoxylated alkyl ethers, such as C12-18 alkyl ethers with <7 EO. Although not preferred, surfactants N may also have an HLB value> 12. However, such surfactants then have no SBF> 0, since otherwise they would be surfactants N1 in the context of the invention.

In addition to the nonionic surfactants N, the agent contains at least one surfactant N1, which may also be a nonionic, but also an amphoteric or zwitterionic surfactant. Suitable nonionic, zwitterionic and amphoteric surfactants are described above. The additional surfactant N1, especially when it is a nonionic surfactant, has an HLB value greater than the HLB value of the one or more nonionic surfactant (s) N and at least 12 by the Griffin method. preferably> 12. This means that when several nonionic surfactants are used as surfactant N, the HLB value of the surfactant N1 is greater than the mean value of the HLB values of the nonionic surfactants N, but preferably greater than the HLB value of each of the nonionic surfactants N used In various embodiments in which two or more nonionic surfactants are used, the nonionic surfactants differ in their HLB values and one of the nonionic surfactants has an HLB value of at least 12, preferably> 12. on. In such embodiments, the higher HLB nonionic surfactant is the N1 surfactant and the lower HLB value is the surfactant (s) N. In various embodiments, the at least one N1 surfactant may also be a mixture of a plurality of surfactants , In such According to embodiments, each surfactant N1 has an HLB value of at least 12 and an SBF> 0. Again, if several nonionic surfactants are used as the surfactant N, the HLB value of the surfactant mixture N1 (average) is greater than the average of the HLB values of the nonionic surfactants N, preferably greater than the HLB value of each of the Even more preferably, the HLB value of each of the surfactants N1 is greater than the HLB value of each of the nonionic surfactants N used, ie the HLB value of the surfactant N1 with the HLB lowest compared to the other surfactants N1 Value is still higher than the HLB value of surfactant N with the highest HLB value compared to the other surfactants N. In such embodiments, in which several surfactants N1 are used, preferably all surfactants N are chosen such that their HLB value after Griffin is <12.

The difference between the HLB values of surfactant (s) N1 and surfactant (s) determined by the Griffin method is preferably at least 1, more preferably 2 or more, even more preferably 3 or more.

Alternatively, if the surfactant N 1 is an amphoteric or zwitterionic surfactant, the HLB value may also be measured by the increment method of Davies (JT Davies, A quantitative kinetic theory of emulsion type, I. Physical Chemistry of the Emulsifying Agent, Vol Proceedings of Second International Congress Surface Activity, 1957, p.426), and is then preferably> 5, more preferably> 6,> 7,> 8,> 9 or> 10. Again, however, the HLB value of Davies surfactant N1 must be greater than the HLB value of Davies surfactant (s). If the surfactant N1 is an amphoteric or zwitterionic surfactant, in various preferred embodiments, the HLB value of this surfactant is preferably> 5, preferably> 6,> 7,> 8,> 9 or> 10 and that according to the method of Davies HLB value of the surfactant / surfactants N by the Griffin method is <12. The SBF value is unaffected by the way the HLB value is determined.

Another feature of the surfactant N1, with several surfactants N1, of each surfactant being 1, is that it has a stabilizing factor SBF of> 0, preferably> 0.1, more preferably> 0.5, more preferably> 0.8 and most preferably> 1 has. The stabilization factor is a dimensionless quantity which is determined via the determination of the liquid phase separation in a surfactant system by means of titration.

For this purpose, at least a first surfactant T1, wherein this first surfactant may also be a mixture of a plurality of surfactants, in a concentration of interest, for example, at least 5 wt .-% based on the total detergent matrix, presented and at a constant temperature (typically under standard conditions, ie 20 ° C. and 1013 mbar) and constant water: T1 ratio as long as a second amphiphile / surfactant T2 is titrated until the entire phase space has been clarified or the maximum concentration of the stable range detected according to the invention is reached. The titration and / or determination of the respective phase can be semi-automated or fully automated, for example by means of conductivity measurements / dielectric spectroscopy (DRS). Suitable methods are known to the person skilled in the art. After the gradual addition of small quantities of surfactant T2, the respective phase state after equilibration is documented, whereby a distinction is made between isotropic single-phase and multiphase states. Based on the added surfactant amount of T2, for each surfactant concentration of T1 for each phase transition, a transition concentration of the respective surfactants, the total surfactant concentration and the relative ratio of the surfactants to each other can be determined. For a better overview, the respective phase transition points as a function of the total concentration of surfactants are graphically plotted against the concentration of surfactant T2 (Y-axis: concentration T1 + T2; X-axis: concentration T2 (in each case given temperature and water: T1 ratio)) , After determination of all phase transitions for five or more surfactant concentrations T1, the course of the phase boundary can be described, whereby care must be taken that the initial surfactant concentrations are chosen so that they describe the phase boundaries as precisely as possible, with the probability that the single phase region is typically the more higher, the greater the initial concentration is selected, ie, for example, concentration T1 of 10 to 50 wt .-%.

Specifically, based on the compositions of the invention, such a determination can be carried out, for example, such that a detergent matrix with all surfactants A (but without P, N and N1) is presented, for example, with a surfactant concentration of A of 20 wt .-%, and then at constant temperature (20 °) and constant water: A ratio, the nonionic surfactant N is titrated until phase separation occurs, with the concentration of N at which the phase transition from the isotropic, single-phase state to a multi-phase state occurring documented as characteristic K for the system becomes. This determination can be repeated for different concentrations of A to clarify the phase space.

If several surfactants N are used, the titration can be carried out with only one of these surfactants, the others being presented in the matrix, or with the entire mixture of the surfactants N, but preferably with the entire mixture N.

The determinations described above are then made with the system having neither the surfactant N1 nor the non-surfactant organic component P (system 1) as a reference, next for a system which does not contain the surfactant (s) N1 but the non-surfactant Comprises component P (system 2) and a system which comprises the surfactant (s) N1 and the non-surfactant component P (system 3) and in each case documents the concentration of the nonionic surfactant N at which the phase separation occurs as parameter K. , With the exception of the additional ingredients surfactant (s) N1 and non-surfactant component P all other parameters, ie the composition of the detergent matrix, temperature, water: A ratio, are kept constant. By definition, since constituent P destabilizes the system, the concentration of surfactant N (= characteristic K) at which the phase separation occurs is lower for system 2 than for system 1 and higher for system 3 than for system 2 (FIG. because the surfactant (s) N1 has / have a stabilizing effect).

The destabilization factor DF for the organic constituent P then results as

DF = (Ksystem 1 - Ksystem 2)

where K is the concentration of N at which phase separation occurs. DF is thus destabilized for each component P which destabilizes the system 2 with respect to the system 1> 0. Thus, DF has as a unit the concentration, preferably in wt%, of the total weight of the system, but it does not depend on the unit and absolute value of DF, but only on the fact that it is> 0, i. P shifts the concentration of N at which phase separation occurs to lower values. However, when expressing the amount of N in% by weight, P is preferably> 0.1, more preferably> 0.2, even more preferably> 0.5.

The stabilization factor is then calculated as

SF = (Ksystem 3 - Ksystem 2) / (Ksystem 1 - Ksystem 2) = (Ksystem 3 - Ksystem 2) / DF

SF is thus for each surfactant N1 which at least partially compensates the destabilizing influence of the constituent P> 0. SF is preferably> 0.01, more preferably> 0.1, more preferably> 0.2, more preferably <0.5, even more preferably> 0.8, most preferably> 1. Preferred ranges are 0.01 to 100, more preferably 0.2 to 20, even more preferably 1 to 20.

The concentration of the surfactants N and N 1 is in total (sum of N and N1) at least 5 wt .-%, preferably 5 to 50 wt .-%, more preferably 5-25 wt .-%, most preferably 10 - 25 wt. % based on the total weight of the agent. The weight ratio of the surfactants N1 and N (N1: N) <1 and the concentration of the surfactant N1 at least 1 wt .-% based on the total weight of the composition. Preferably, the concentration of the surfactant N1 is at least 2, more preferably 2-10 wt%. The amount of the surfactant N is preferably 2.5 to 20 wt .-%, preferably 5-20 wt .-%. All information above is based on the total weight of the product.

The ratio of the total amount of N + N1 to total amount of anionic surfactants A is preferably 5: 1 to 1: 5, in particular 2: 1 to 1: 5, at a total surfactant content of 30% by weight, with a total surfactant content of 35% by weight. % preferably 5: 2 to 1: 6, in particular 4: 3 to 1: 6, with a total surfactant content of 40 wt.%, preferably 5: 3 to 1: 7, in particular 1: 1 to 1: 3, with a total surfactant content of 45% by weight, preferably 5: 4 to 1: 8, in particular 4: 5 to 2: 7, at a total surfactant content of 50% by weight, preferably 1: 1 to 1: 9, in particular 2: 3 to 1: 4 a total surfactant content of 55% by weight, preferably 5: 6 to 1:10, in particular 4: 7 to 2: 9, at a total surfactant content of 60% by weight, preferably 5: 7 to 1: 1 1, in particular 1: 2 to 1: 5, at a total surfactant content of 65 wt .-%, preferably 5: 8 to 1: 12, in particular 4: 9 to 2: 1 1, and at a total surfactant content of 70 wt .-%, preferably 5: 9 to 1: 13 , in particular 2: 5 to 1: 6. In the above embodiments, N 1 constitutes at most 50% by weight of the total amount of N + N 1, and based on the total weight of the composition, preferably 1, 0 to 10% by weight, more preferably 1 to 5 to 8 or 2 to 6% by weight.

As surfactants N, in particular fatty alcohol alkoxylates, such as those described above, are used, in particular those having up to 7 EO, preferably 2-5 EO.

Nonionic surfactants used in particular as surfactants N1 are, for example, alkyl polyglycosides, in particular n-decyl or n-dodecyl-.beta.-D maltoside, n-octyl, 2-ethylhexyl, n-decyl or n-dodecyl-.beta.-D Glucoside, n-octyl, 2-ethylhexyl, n-decyl or n-dodecyl-aD-glucoside, or in general Cs-16, in particular Ce-io or Ci2-i6-alkyl-oligo (1, 4) -glucosides as well as the above-described N-alkylgluconamides, in particular N-octyl, N-decyl and N-dodecyl-D-gluconamides and the corresponding N, N-dialkyl-D-gluconamides, in particular N-Cs-ds-alkyl-N- methyl-D-gluconamides. In alternative embodiments, N1 is an amphoteric or zwitterionic surfactant, for example, an amine oxide or a betaine.

In various embodiments, the agents of the invention contain as surfactant N alkyl ethers, in particular the fatty alcohol alkoxylates described above, and as surfactant N1 the alkyl polyglycosides or N-alkylgluconamides described above, in particular in weight ratios of 5: 1 to 1: 5, preferably 3: 1 to 1 : 3rd In this case, the amount of alkyl ether / fatty alcohol alkoxylate, for example, 5 to 15 wt .-%, preferably 6 to 10 wt .-%, and / or the amount of alkyl (poly) glycoside, for example, 2 to 8 wt .-%, preferably 3 to 5 % By weight, in each case based on the total weight of the composition.

In various embodiments, the liquid detergent contains no other nonionic surfactants other than these two types of nonionic surfactants. Alternatively, however, the detergent may contain other nonionic surfactants as long as the total content of nonionic surfactants in the agent does not exceed 20% by weight. In such embodiments, the residual content of surfactants is preferably determined by anionic surfactants. In various embodiments, therefore, the compositions do not contain any cationic surfactants and preferably also no amphoteric or zwitterionic surfactants.

The surfactants described above are used in conventional amounts, the amount being selected so that the total surfactant content of the inventive compositions, as described above,> 30 Wt .-%, for example 30 to 70 wt .-%, preferably 35-60 wt .-% is. In various embodiments, the total surfactant content is up to 45% by weight, while preferred amounts of surfactant may range from 32 to 38% by weight.

In preferred embodiments, the agents contain at least one anionic, preferably at least two anionic surfactants A and at least two nonionic surfactants N and N1, as defined above.

The anionic surfactants are preferably alkylbenzenesulfonates, as described above, which are usually present in amounts of from 10 to 25% by weight, preferably from 12 to 20% by weight, particularly preferably from 14 to 18% by weight, in the compositions , Additionally or alternatively, the agents may also contain alkyl ether sulfates, usually in amounts of 2 to 10 wt .-%, in particular 3 to 8 wt .-%.

In addition to the anionic surfactants, nonionic surfactants are included in amounts of at least 5, preferably 5 to 25 percent by weight. Preferred amounts of surfactants N and N1 have been defined above.

Furthermore, the detergent may contain at least one fatty acid soap. These are particularly advantageous for the cold washing performance. Preferred detergents are therefore characterized in that they contain, based on their weight, from 0.1 to 15% by weight, preferably from 0.2 to 12.5% by weight, more preferably from 0.5 to 3% by weight, of soap (n) included. Particularly preferred are soaps of fatty acids having 12 to 18 carbon atoms. The fatty acid soaps may be in the form of their sodium, potassium or magnesium or ammonium salts. Preferably, they are in the form of their sodium salts and / or ammonium salts.

The organic, non-surfactant compound P, which adversely affects the stability of the liquid detergent, is in an amount of at least 0.5 wt .-%, preferably at least 1 wt .-%, more preferably 2 or more wt .-%, preferably to 10 wt .-%, more preferably to 5 wt .-%, based on the total weight of the composition, in this.

"Non-surfactant" as used herein means that the compound does not behave as a surfactant, i.e., in particular, can not form micelles and therefore has no CMC value.

In various embodiments, the compound P is a polymeric constituent, especially selected from soil release polymers (soil release polymers or SRPs), anti redeposition agents, dye transfer inhibitors (DTIs), polymeric dispersants, and combinations of the foregoing. In particular, oligoesters are obtainable as SRPs from preferably terephthalic acid, isophthalic acid, sulfoisophthalic acid and / or methyl esters thereof, aliphatic dicarboxylic acids (saturated and / or unsaturated), for example adipic acid, and / or their anhydrides, aliphatic substituted dicarboxylic acids, for example nonylsuccinic acid, alkylene glycols (ethylene, 1, 2-propylene, 1, 2-butylene glycol), polyethylene glycols, alkyl polyethylene glycols, Polyethylenglykolbenzoesäureester, Polyethylenglykolsulfobenzoesäureester and optionally alkanolamines used. Preference is given to polymers based on terephthalate PEG, as are commercially available, for example, under the trade name Texcare®. Alternatively (co) polymers based on polyethyleneimine, polyvinyl acetate and polyethylene glycol can also be used.

Suitable soil release polymers are generally already well known in the art. In particular, therefore, all known in the art for this purpose polymers can be used.

In order to effectively suppress dye release and / or dye transfer to other fabrics during the washing and / or cleaning of dyed fabrics, the composition of the invention may contain a dye transfer inhibitor. It is preferred that the dye transfer inhibitor is a polymer or copolymer of cyclic amines such as vinylpyrrolidone and / or vinylimidazole. Suitable polymers include polyvinylpyrrolidone (PVP), polyvinylimidazole (PVI), copolymers of vinylpyrrolidone and vinylimidazole (PVP / PVI), polyvinylpyridine-N-oxide, poly-N-carboxymethyl-4-vinylpyridium chloride and mixtures thereof. Particular preference is given to using polyvinylpyrrolidone (PVP), polyvinylimidazole (PVI) or copolymers of vinylpyrrolidone and vinylimidazole (PVP / PVI) as color transfer inhibitor.

Particularly suitable as anti-redeposition agents are polycarboxylates. Suitable materials can be prepared by the polymerization or copolymerization of unsaturated carboxylic acid monomers such as acrylic acid, maleic acid (or anhydride), fumaric acid, itaconic acid, aconitic acid, mesaconic acid, citraconic acid and methylmalonic acid. Particularly preferred are acrylate polymers and acrylic / maleic copolymers.

Suitable SRPs, anti-redeposition agents and DTIs are also described, for example, in International Patent Publication WO 2009/153184 A1 on pages 25-39 under the headings "dye tranfer inhibitors", "anti redeposition agents" and "soil release polymers." The disclosure of this document with respect to said polymers, is incorporated herein by reference in its entirety. In various embodiments of the invention, the polymers contained in the agents comprise at least one SRP and optionally at least one DTI.

In various embodiments, constituent P has a destabilizing factor of at least -0.1, preferably at least -0.25, more preferably at least -0.5, most preferably at least -1.0.

The liquid detergents described herein further preferably contain at least one enzyme. The at least one enzyme may be any enzyme known in the art capable of exhibiting catalytic activity in a detergent or cleaning agent, and includes but is not limited to, for example, proteases, amylases, lipases, cellulases, hemicellulases, mannanases, pectin cleaving enzymes, tannases, xylanases, xanthanases, β-glucosidases, carrageenases, perhydrolases, oxidases, oxidoreductases and mixtures thereof. In a preferred embodiment, the at least one enzyme is selected from the group consisting of proteases, amylases, lipases, cellulases and mixtures thereof. These enzymes are, in principle, of natural origin, but starting from the natural molecules, improved variants are available for use in detergents or cleaners, which are preferably used accordingly.

Among the proteases, those of the subtilisin type are preferable. Examples of these are the subtilisins BPN 'and Carlsberg, the protease PB92, the subtilisins 147 and 309, the alkaline protease from Bacillus lentus, subtilisin DY and the enzymes thermitase, proteinase K and the subtilases, but not the subtilisins in the narrower sense Proteases TW3 and TW7. Subtilisin Carlsberg is available in a further developed form under the trade name Alcalase® from Novozymes A / S, Bagsvaerd, Denmark. The subtilisins 147 and 309 are sold under the trade names Esperase®, and Savinase® by the company Novozymes. From the protease from Bacillus lentus DSM 5483 derived under the name BLAP® protease variants derived. Further useful proteases are, for example, those under the trade names Durazym®, Relase®, Everlase®, Nafizym®, Natalase®, Kannase® and Ovozyme® from Novozymes, which are available under the trade names, Purafect®, Purafect® OxP, Purafect® Prime, Excellase® and Properase® from Genencor, sold under the trade name Protoso D by Advanced Biochemicals Ltd., Thane, India, under the trade name Wuxi® by Wuxi Snyder Bioproducts Ltd., China, under the trade names Proleather ® and Protease P® from Amano Pharmaceuticals Ltd., Nagoya, Japan, and the enzyme available under the name Proteinase K-16 from Kao Corp., Tokyo, Japan. Particular preference is also given to using the proteases from Bacillus gibsonii and Bacillus pumilus. Examples of amylases are the α-amylases from Bacillus licheniformis, from β. amyloliquefaciens or from ß. stearothermophilus and their improved for use in detergents or cleaners further developments. The enzyme from ß. licheniformis is available from Novozymes under the name Termamyl® and from Genencor under the name Purasta DST. Further development products of this α-amylase are available from Novozymes under the trade name Duramyl® and Termamy Dultra, from Genencor under the name Purastar®OxAm and from Daiwa Seiko Inc., Tokyo, Japan, as Keistase®. The α-amylase of β. amyloliquefaciens is marketed by the company Novozymes under the name BAN®, and derived variants of the α-amylase from β. stearothermophilus under the names BSG® and Novamyl®, also from Novozymes. Furthermore, for this purpose, the α-amylase from Bacillus sp. A 7-7 (DSM 12368) and cyclodextrin glucanotransferase (CGTase) from β. agaradherens (DSM 9948). Likewise, fusion products of all the molecules mentioned can be used. In addition, the further developments of the α-amylase from Aspergillus niger and A. oryzae available under the trade name Fungamyl® from the company Novozymes are suitable. Further advantageously usable commercial products are, for example, the amylase-LT® and Stainzyme® or Stainzyme ultra® or Stainzyme plus®, the latter also from the company Novozymes. Also variants of these enzymes obtainable by point mutations can be used according to the invention.

Examples of useful lipases or cutinases, which are contained in particular because of their triglyceride-cleaving activities, but also to generate in situ peracids from suitable precursors, are the lipases which are originally obtainable from Humicola lanuginosa (Thermomyces lanuginosus) or further developed, in particular those with the amino acid exchange D96L. They are sold for example by the company Novozymes under the trade names Lipolase®, Lipolase®Ultra, LipoPrime®, Lipozyme® and Lipex®. Furthermore, for example, the cutinases can be used, which have been originally isolated from Fusarium solani pisi and Humicola insolens. Lipases which are likewise useful are sold by Amano under the names Lipase CE®, Lipase P®, Lipase B® or Lipase CES®, Lipase AKG®, Bacillus sp. Lipase®, Lipase AP®, Lipase M-AP® and Lipase AML®. By Genencor, for example, the lipases or cutinases can be used, the initial enzymes were originally isolated from Pseudomonas mendocina and Fusarium solanii. Other important commercial products are preparations M 1 Lipase® and Lipomax®, which were originally sold by Gist-Brocades, and those sold by Meito Sangyo KK, Japan, under the name Lipase MY-30®, Lipase OF® and Lipase PL® To mention enzymes, also the product Lumafast® from Genencor.

Depending on the purpose, cellulases may be pure enzymes, enzyme preparations or in the form of Mixtures in which the individual components advantageously complement each other in terms of their various performance aspects, be present. These performance aspects include in particular the contributions of the cellulase to the primary washing performance of the composition (cleaning performance), to the secondary washing performance of the composition (anti-redeposition effect or graying inhibition), to softening (tissue effect) or to the exercise of a "stone-washed" effect.A useful fungal, endoglucanase (EC ) -rich cellulase preparation or its further developments is offered by the company Novozymes under the trade name Celluzyme® The products Endolase® and Carezyme® likewise available from the company Novozymes are based on the 50 kD-EG or the 43 kD-EG H. insolens DSM 1800. Other commercially available products of this company are Cellusoft®, Renozyme® and Celluclean.RTM .. Also usable are, for example, the 20 kD-EG from Melanocarpus, those from AB Enzymes, Finland, under the trade names Ecostone® and Biotouch® Other commercial products of AB Enzymes are Econa se® and Ecopulp®. Other suitable cellulases are from Bacillus sp. CBS 670.93 and CBS 669.93, those derived from Bacillus sp. CBS 670.93 from the company Genencor under the trade name Puradax® is available. Further commercial products of Genencor are "Genencor detergent cellulase L" and lndiAge®Neutra. Also variants of these enzymes obtainable by point mutations can be used according to the invention. Particularly preferred cellulases are Thielavia terrestris cellulase variants, cellulases from melanocarpus, in particular melanocarpus albomyces, cellulases of the EGIII type from Trichoderma reesei or variants obtainable therefrom.

Furthermore, in particular for the removal of certain problem soiling, further enzymes can be used, which are summarized by the term hemicellulases. These include, for example, mannanases, xanthan lyases, xanthanases, xyloglucanases, xylanases, pullulanases, pectin-splitting enzymes and β-glucanases. The β-glucanase obtained from Bacillus subtilis is available under the name Cereflo® from Novozymes. Hemicellulases which are particularly preferred according to the invention are mannanases which are sold, for example, under the trade names Mannaway® by the company Novozymes or Purabrite® by the company Genencor. The pectin-destroying enzymes in the context of the present invention are also counted enzymes with the designations pectinase, pectate lyase, pectin esterase, pectin methoxylase, pectin methoxylase, pectin methyl esterase, pectase, pectin methyl esterase, pectin esterase, pectin-pectin hydrolase, pectin-polymerase, endopolygalacturonase, pectolase, pectin hydrolase, pectin-polygalacturonase, Endo-polygalacturonase, poly-a-1, 4-galacturonide glycanohydrolase, endogalacturonase, endo-D-galacturonase, galacturan 1, 4-a-galacturonidase, exopolygalacturonase, poly (galacturonate) hydrolase, exo-D-galacturonase, exo-D Galacturonanase, exopoly-D-galacturonase, exo-poly-o galacturonosidase, exopolygalacturonosidase or exopolygalacturanosidase. Examples of suitable enzymes in this regard are, for example, under the names Gamanase®, Pektinex AR®, X-Pect® or Pectaway® from the company Novozymes, under the name Rohapect UF®, Rohapect TPL®, Rohapect PTE100®, Rohapect MPE®, Rohapect MA plus HC, Rohapect DA12L®, Rohapect 10L®, Rohapect B1 L® of the Company AB Enzymes and available under the name Pyrolase® from Diversa Corp., San Diego, CA, USA.

Of all these enzymes, particular preference is given to those which have been stabilized per se with respect to oxidation in a comparatively stable manner or, for example, via point mutagenesis. These include, in particular, the already mentioned commercial products Everlase® and Purafect®OxP as examples of such proteases and Duramyl® as an example of such an α-amylase.

To increase the bleaching effect, oxidoreductases, for example oxidases, oxygenases, catalases (which react as peroxidase at low H 2 O 2 concentrations), peroxidases, such as halo, chloro, bromo, lignin, glucose, can also be present in the detergents, in particular liquid detergents or manganese peroxidases, dioxygenases or laccases (phenol oxidases, polyphenol oxidases). Suitable commercial products are Denilite® 1 and 2 from Novozymes.

The liquid detergents contain the at least one enzyme in amounts established in the prior art. Thus, the at least one enzyme in a total amount of 1 x 10 ^{~ 8} to 5 wt .-% based on active protein or in a total amount of 0.001 to 3 wt .-%, or 0.01 to 1, 5 wt. % or 0.05 to 1, 25 wt .-% contained. The amounts given are to be understood so that any enzyme contained can be contained in the stated amounts. The enzymes are preferably used as enzyme liquid formulation (s).

The at least one enzyme present in a detergent or cleanser aids the cleaning performance of the agent on certain soils or stains. Particularly preferably, an agent according to the invention contains a plurality of enzymes, wherein the enzymes may belong to the same or different enzyme classes. Most preferably, the enzymes exhibit synergistic effects in their action against certain soils or stains, i. The enzymes contained in the composition support each other in their cleaning performance.

In addition, the detergent may contain other ingredients that further improve the performance and / or aesthetic properties of the detergent. In the context of the present invention, the detergent preferably additionally contains one or more substances from the group of builders / complexing agents, bleaching agents, electrolytes, perfumes, perfume carriers, fluorescers, dyes, hydrotropes, foam inhibitors, silicone oils, grayness inhibitors, anti-shrinkage agents, anti-crease agents, antimicrobial agents, germicides , Fungicides, Antioxidants, preservatives, corrosion inhibitors, antistatic agents, bittering agents, ironing auxiliaries, repellents and impregnating agents, swelling and anti-slip agents, softening components, pH adjusters and UV absorbers.

As a bleaching agent can serve all substances that destroy or absorb dyes by oxidation, reduction or adsorption and thereby discolor materials. These include, among others, hypohalite-containing bleach, hydrogen peroxide, perborate, percarbonate, peroxoacetic acid, diperoxoazelaic acid, diperoxododecanedioic acid, and oxidative enzyme systems. However, liquid detergents are typically free of non-enzymatic bleaches.

Suitable builders which may be present in the detergent are, in particular, silicates, aluminum silicates (in particular zeolites), carbonates, phosphonates, organic di- and polycarboxylic acids or salts thereof and mixtures of these substances.

Organic builders which may be present in the detergent are, for example, the polycarboxylic acids which can be used in the form of their sodium salts, polycarboxylic acids meaning those carboxylic acids which carry more than one acid function. For example, these are citric acid, adipic acid, succinic acid, glutaric acid, malic acid, tartaric acid, maleic acid, fumaric acid, sugar acids, aminocarboxylic acids, and mixtures of these. Preferred salts are the salts of polycarboxylic acids such as citric acid, adipic acid, succinic acid, glutaric acid, tartaric acid, sugar acids and mixtures thereof. Likewise suitable and preferred are aminocarboxylic acids, in particular glutamic diacetic acid (GLDA) and methylglycine diacetic acid (MGDA).

As builders further polymeric polycarboxylates are suitable. These are, for example, the alkali metal salts of polyacrylic acid or polymethacrylic acid, for example, those having a molecular weight of 600 to 750,000 g / mol.

Suitable polymers are in particular polyacrylates, which preferably have a molecular weight of from 1,000 to 15,000 g / mol. Because of their superior solubility, the short-chain polyacrylates, which have molecular weights of from 1,000 to 10,000 g / mol, and particularly preferably from 1,000 to 5,000 g / mol, may again be preferred from this group.

Also suitable are copolymeric polycarboxylates, in particular those of acrylic acid with methacrylic acid and of acrylic acid or methacrylic acid with maleic acid.

To improve the water solubility, it is also possible to use, as polymers, copolymeric polycarboxylates which contain allyl sulfonic acids, such as allyloxybenzenesulfonic acid and methallylsulfonic acid, as a monomer. In various embodiments, such sulfopolymers are particularly preferred.

In liquid detergents, preference is given to using soluble builders, such as, for example, citric acid, or acrylic polymers having a molar mass of from 1,000 to 5,000 g / mol.

Particularly preferred is citrate. The water-soluble organic builders described above may in various embodiments in amounts of 1 to 25 wt .-%, preferably 1, 5 to 20 wt .-%, more preferably 2 to 15 wt .-%, most preferably 2.5 to 10 wt .-%, based on the total weight of the agent. In particular, citrate is used in amounts of 2.5 to 5 wt .-%.

The detergents may additionally contain phosphonates, such as HEDP (1-hydroxyethane-1, 1-diphosphonic acid) or DTPMP (diethylene triamine penta (methylene phosphonate) as builders and complexing agents.) The phosphonates are preferred in various embodiments in amounts up to 10% by weight to 5 wt .-%, particularly preferably 0.5 to 4 wt .-%, based on the total weight of the composition used.

Preferred liquid detergents preferably contain water as the main solvent. It is preferred that the detergent more than 5 wt .-%, preferably more than 15 wt .-% and particularly preferably more than 25 wt .-%, each based on the total amount of detergent, water. Particularly preferred liquid detergents contain - based on their weight - 5 to 65 wt .-%, preferably 10 to 60 wt .-%, particularly preferably 25 to 55 wt .-% and in particular 30 to 50 wt .-% water. Alternatively, the liquid detergents may be low-water or water-free detergents, with water-based liquid detergents containing less than 20% by weight, preferably less than 15% by weight, more preferably less than 10% by weight and water most preferably less than 8% by weight, based in each case on the total liquid detergent. Anhydrous compositions contain less than 5% by weight, preferably less than 3% by weight, more preferably less than 2%, most preferably less than 1% by weight of water, based on the total weight of the composition.

In addition, nonaqueous solvents may be added to the detergent. Suitable non-aqueous solvents include mono- or polyhydric alcohols, alkanolamines or glycol ethers, provided that they are miscible with water in the specified concentration range. The solvents are preferably selected from ethanol, n-propanol, i-propanol, butanols, glycol, propanediol, butanediol, methylpropanediol, glycerol, diglycol, propyldiglycol, butyldiglycol, hexyleneglycol, ethylene glycol methyl ether, ethylene glycol ethyl ether,

Ethylene glycol propyl ether, ethylene glycol mono-n-butyl ether, diethylene glycol methyl ether, Diethylene glycol ethyl ether, propylene glycol methyl ether, propylene glycol ethyl ether,

Propylene glycol propyl ether, dipropylene glycol monomethyl ether, dipropylene glycol monoethyl ether, methoxytriglycol, ethoxytriglycol, butoxytriglycol, 1-butoxyethoxy-2-propanol, 3-methyl-3-methoxybutanol, propylene glycol t-butyl ether, di-n-octyl ether and mixtures of these solvents. Particular preference is given to 1,2-propanediol and glycerol. It is preferred that the detergent contains such an alcohol, in particular 1, 2-propanediol and / or glycerol, very particularly preferably 1, 2-propanediol, in amounts of between 0.5 and 15 wt .-%, based on the total detergent ,

To further improve the stability of the agents, hydrotropes may be used in addition to the surfactant systems described herein. The term "hydrotrope" as used in the context of the present invention refers to additives or solvents which cause the water solubility of poorly soluble (hydrophobic) organic compounds to increase, whereby a second component (ie the hydrotrope) is added to the sparingly soluble substance However, such hydrotropes have hydrophilic and hydrophobic structural units (such as surfactants) but without the tendency to form aggregates in water (as opposed to surfactants) .In various embodiments, these hydrotropes have no micelle-forming activity or are critical Micelle Formulation Concentration (CMC) is greater than 10 ^-4 mol / L, preferably greater than 10 ^-3 mol / L, and more preferably 10 ^-2 mol / L. The "critical micelle concentration" is in line with the general understanding in the art Concentration of the corresponding substance over which this begins Mizel and any other molecule added to the system is converted into the micelles. The hydrotropes employed typically have a molecular weight <10,000 g / mol, preferably <2,500 g / mol, more preferably <1,000 g / mol, and most preferably <500 g / mol. They may be selected, for example, from short chain mono-, di-, tri-, tetra- or penta-alkylbenzenesulfonates, especially C1-6 alkylbenzenesulfonates wherein the alkyl groups may be linear or branched, including but not limited to cumene sulfonate, toluenesulfonate and / or xylenesulfonate and butyl glycol, propylene glycol, 3-methoxy-3-methyl-1-butanol, 2,2-dimethyl-4-hydroxymethyl-1,2-dioxolane, propylene carbonate, butyl lactate, 2-isobutyl-2-methyl-1,3-dioxolane -4-methanol or mixtures thereof. The hydrotropic compounds are preferably used in a range of 0, 1 to 5 wt .-%, more preferably from 1 to 2 wt .-%, based on the total weight of the detergent.

The detergents described herein, in particular the described low-water to anhydrous liquid detergents, can be filled into a water-soluble casing and thus be part of a water-soluble packaging. If the detergent is packaged in a water-soluble wrapper, it is preferred that the level of water be less than 20% Wt .-%, preferably less than 15 or 10 wt .-% based on the total detergent.

A water-soluble packaging contains, in addition to the detergent, a water-soluble coating. The water-soluble coating is preferably formed by a water-soluble film material.

Such water soluble packages can be made by either vertical fill seal (VFFS) or thermoforming methods.

The thermoforming process generally includes forming a first layer of water-soluble sheet material to form protrusions for receiving a composition therein, filling the composition into the protrusions, covering the composition-filled protrusions with a second layer of water-soluble sheet material, and sealing the first and second layers at least around the bulges.

The water-soluble coating is preferably formed from a water-soluble film material selected from the group consisting of polymers or polymer blends. The wrapper may be formed of one or two or more layers of the water-soluble film material. The water-soluble film material of the first layer and the further layers, if present, may be the same or different.

The water-soluble package comprising the detergent and the water-soluble wrapper may have one or more chambers. The liquid detergent may be contained in one or more chambers, if any, of the water-soluble coating. The amount of liquid detergent preferably corresponds to the full or half dose needed for a wash.

It is preferable that the water-soluble coating contains polyvinyl alcohol or a polyvinyl alcohol copolymer.

Suitable water-soluble films for producing the water-soluble coating are preferably based on a polyvinyl alcohol or a polyvinyl alcohol copolymer whose molecular weight is in the range of 10,000 to 1,000,000 g / mol, preferably 20,000 to 500,000 g / mol, more preferably 30,000 to 100,000 g / mol and especially from 40,000 to 80,000 g / mol.

A suitable for the preparation of the water-soluble envelope sheet material may additionally polymers selected from the group comprising acrylic acid-containing polymers, polyacrylamides, Oxazoline polymers, polystyrenesulfonates, polyurethanes, polyesters, polyethers, polylactic acid, and / or mixtures of the above polymers.

Preferred polyvinyl alcohol copolymers include, in addition to vinyl alcohol, dicarboxylic acids as further monomers. Suitable dicarboxylic acids are itaconic acid, malonic acid, succinic acid and mixtures thereof, with itaconic acid being preferred.

Likewise preferred polyvinyl alcohol copolymers include, in addition to vinyl alcohol, an ethylenically unsaturated carboxylic acid, its salt or its esters. Such polyvinyl alcohol copolymers particularly preferably contain, in addition to vinyl alcohol, acrylic acid, methacrylic acid, acrylates, methacrylates or mixtures thereof.

Suitable water-soluble films for use in the casings of the water-soluble packaging according to the invention are films sold by the company MonoSol LLC, for example under the designation M8630, C8400 or M8900. Other suitable films include films named Solublon® PT, Solublon® GA, Solublon® KC or Solublon® KL from Aicello Chemical Europe GmbH or the films VF-HP from Kuraray.

The water-soluble packages may have a substantially dimensionally stable spherical and pillow-shaped configuration with a circular, elliptical, square or rectangular basic shape.

The water soluble package may include one or more chambers for storing one or more agents. If the water-soluble packaging has two or more chambers, at least one chamber contains a liquid detergent. The other chambers may each contain a solid or a liquid detergent.

Another object of the invention is a process for the cleaning of textiles, which is characterized in that in at least one process step, an inventive composition is used and the use of a liquid detergent according to the invention for washing textiles.

These include both manual and mechanical processes, with mechanical processes being preferred. Methods for cleaning textiles are generally distinguished by the fact that various cleaning-active substances are applied to the items to be cleaned and washed off after the contact time, or that the items to be cleaned are otherwise treated with a detergent or a solution or dilution of this product. All conceivable washing methods can be used in at least one of Process steps are enriched by the use of a detergent according to the invention and then constitute embodiments of the present invention. All facts, objects and embodiments described for means according to the invention are also applicable to this subject of the invention. Therefore, reference is made at this point expressly to the disclosure in the appropriate place with the statement that this disclosure also applies to the above inventive methods and uses.

Table 1: Detergent formulation, components in% by weight

Glucopon 215 CSUP (C8-10 alkyl (poly) glucoside; DP 1, 5; active substance 62-65% by weight)

Glucopon 600 CSUP (C12-14 alkyl (poly) glucoside; DP 1, 4; active substance 50-53% by weight)

The formulations E1 and E2 according to the invention were stable after 12 weeks of storage at room temperature. A comparison formulation containing only nonionic surfactant only fatty alcohol 7EO (V1) already showed a phase separation after 2 weeks. Reference recipe V2 serves as a reference and contains neither polymer (SRP) nor glucopone.

Example 2: Comparison of the Stability Boosting Factor (SBF)

Table 2 shows a comparison of Stability Boosting Factor (SBF) values from the systems of different polymer types (SRP1 and SRP2) shown in Table 1 and additional corrective nonionic surfactant N1 (Glucopon 215 CSUP). Table 2: SBF values for various polymer surfactant systems

The formulation without polymer but with the additional corrective nonionic surfactant gives the largest SBF value of 1.8. The influence of the polymer is clearly visible, the SBF values are in the range of 0.8 to 1. SBF = 1 is the reference value of the original formulation without polymers and without additional corrective nonionic surfactants N1. As mentioned above, SBF = 1 or more is desirable since the stable single-phase region either remains the same size or even expands and becomes larger. SBF = 0.8 is also still tolerable, while the stable single-phase region is slightly smaller.

Claims

Patent claims

1. Isotropic liquid detergent having a total surfactant concentration of at least 30% by weight based on the total weight of the agent, preferably in the range of 30 to 70% by weight, more preferably 35 to 60% by weight

(A) at least 25% by weight, based on the total weight of the agent, of a surfactant mixture comprising one or more anionic surfactant(s) A, one or more nonionic surfactant(s) N and at least one nonionic, amphoteric or zwitterionic surfactant N1; and

(B) at least 0.5% by weight of at least one organic, non-surfactant compound P which negatively affects the stability of the liquid detergent, the non-surfactant compound having a destabilization factor DF of >0;

wherein the concentration of the anionic surfactant A is up to 65% by weight, preferably up to 55% by weight, based on the total weight of the agent; and

wherein the concentration of the surfactants N and N 1 is at least 5% by weight, preferably 5 to 50% by weight, more preferably 5-25% by weight, based on the total weight of the agent; where the weight ratio of the surfactants N1 and N (N1:N) is <1;

wherein the at least one surfactant N1, if it is a nonionic surfactant, has a Griffin HLB value that is greater than the HLB value of the one or more nonionic surfactant (s) N and is at least 12 or, if it is a is an amphoteric or zwitterionic surfactant, has a Davies HLB value that is >5; and wherein the at least one surfactant N1 has a stabilization factor SBF of >0, preferably >0.1, more preferably >0.5, more preferably >0.8 and most preferably >1.

2. Isotropic liquid detergent according to claim 1, characterized in that the one or more surfactant (s) A

(i) are contained in the agent in a concentration of at least 10% by weight, preferably at least 20% by weight, based on the total weight of the agent; and or

(ii) selected from sulfate and sulfonate surfactants, preferably alkyl benzene sulfonates, alkyl sulfates and alkyl ether sulfates; and or

(iii) contain at least two anionic surfactants, in particular in a total amount of 15 to 25% by weight, the anionic surfactants preferably being selected from alkylbenzene sulfonates, preferably in amounts of 10 to 25% by weight, preferably 12 to 20% by weight. -%, particularly preferably 14 to 18% by weight, alkyl ether sulfates, preferably in amounts of 2 to 10% by weight, in particular 3 to 8% by weight, and in particular a combination of alkyl benzene sulfonates and alkyl ether sulfates in the amounts specified.

3. Isotropic liquid detergent according to claim 1 or 2, characterized in that the one or more surfactants are N

(i) have a Griffin HLB value of <12; and or

(ii) are contained in the agent in a concentration of at least 5% by weight based on the total weight of the agent; and or

(iii) are selected from fatty alcohol alkoxylates.

4. Isotropic liquid detergent according to one of the preceding claims, characterized in that the surfactant N1 is selected from alkyl polyglycosides and N-alkyl gluconamides, preferably from the group consisting of n-decyl or n-dodecyl-ß-D-maltoside, n-octyl -, 2-ethylhexyl, n-decyl or n-dodecyl-ß-D-glucoside, n-octyl, 2-ethylhexyl, n-decyl or n-dodecyl-a-D-glucoside, Ce-ie, in particular Ce-io or C12-16-alkyl-oligo(1,4)-glucosides, N-octyl-, N-decyl- and N-dodecyl-D-gluconamide, and N,N-dialkyl-D-gluconamides, especially N -Cs-C-is-alkyl-N-methyl-D-gluconamides.

5. Isotropic liquid detergent according to one of the preceding claims, characterized in that the concentration of the surfactant N 1 is at least 2, more preferably 2-10% by weight and / or the amount of the surfactant N is 2.5 to 20% by weight, preferably 5-20% by weight, based on the total weight of the agent.

6. Isotropic liquid detergent according to one of the preceding claims, characterized in that the at least one organic, non-surfactant compound P

(i) is a polymer which is preferably selected from soil-release polymers (SRP), color transfer inhibitors (DTI), anti-redeposition agents and dispersants, in particular an SRP and optionally a DTI; and or

(ii) are contained in the agent in a concentration of at least 1% by weight based on the total weight of the agent; and or

(iii) has a destabilization factor of at least -0.1, preferably at least -0.25, more preferably at least -0.5, most preferably at least -1.0.

7. Isotropic liquid detergent according to one of the preceding claims, characterized in that the agent further contains at least one hydrotrope.

8. Liquid detergent according to one of claims 1 to 7, characterized in that the agent contains at least one enzyme; and or (2) furthermore at least one further component selected from the group consisting of builders, bleaching agents, electrolytes, perfumes, perfume carriers, fluorescent agents, dyes, hydrotropes, foam inhibitors, silicone oils, graying inhibitors, shrinkage inhibitors, anti-crease agents, antimicrobial active ingredients, germicides, fungicides, antioxidants, preservatives , corrosion inhibitors, antistatic agents, bittering agents, ironing aids, repellents and impregnating agents, swelling and anti-slip agents, softening components, pH adjusting agents and UV absorbers.

9. Use of a liquid detergent according to one of claims 1-8 for washing textiles.

10. A method for cleaning textiles, characterized in that a liquid detergent according to one of claims 1-8 is used in at least one process step.