EP1036157B1 - Dish washing detergent with a specific viscosity profile - Google Patents

Abstract

The invention relates to pourable detergents for washing dishes by hand which remain stable in storage and which have a specific viscosity profile. The detergents contain tenside mixtures of anionic tensides and/or non-ionic tensides and/or betaine tensides and between 0.01 and 5 wt. % polymers, and preferably have (1) a viscosity of between 1,300 and 9,000 mPa.s at 20 DEG C and with a shear rate of 10 s<-1> or a viscosity of between 500 and 8,000 mPa.s at 20 DEG C and with a shear rate of 30 s<-1> and/or (2) 0.2 to 60 wt. % tenside mixture and/or (3) 0.2 to 49.8 wt. % anionic tensides, 0.1 to 14.9 wt. % non-ionic tensides and 0.1 to 14.9 wt. % betaine tensides.

Description

The invention relates to dishwashing detergents with a specific viscosity profile, containing one thickened surfactant mixture that is not caused by liquid crystalline structures.

If you try to use conventional means to precisely dose, clean, easy to handle, temperature and storage stable, pourable and ecologically special Making compatible hand dishwashing detergents quickly reaches the performance limit of the products. The object of the invention was to formulate a hand dishwashing detergent, in addition to the usual surfactant mixtures for this product group a component for setting a specific viscosity profile.

Thickened cleaning agents are known in the prior art. Among other things, polymers Silicas, clays and silicates as well as other ingredients are used.

WO 95/20027 describes liquid or gel-like hand dishwashing detergents which are thickened by adding amine oxide.

WO 95/07971 describes gel-like dishwashing detergents containing protease enzyme, which is intended to ensure hand mildness.

WO 95/06108 describes concentrated or gel dishwashing detergents which are thickened by adding calcium salts and xylene sulfonates. The addition of divalent ions to surfactants often leads to dimerization of surfactants and thus to the formation of liquid-crystalline structures in hand dishwashing detergents.

GB 2280682 describes gel-like compositions containing urea which are present in the hexagonal liquid-crystalline phase. The viscosity of such liquid-crystalline compositions in production, storage and use is very difficult to control.

WO 94/09100 proposes to stabilize gel-like hand dishwashing detergents based on polyhydroxy fatty acid amides by adding boric acid.

The gel-type dishwasher detergents from Builder mentioned in many publications (like phosphate), alkali (like soda), little (usually up to 5% by weight) because of the high proportion of alkali is not suitable for hand dishwashing detergents.

If you work high amounts of typical surfactant mixtures from anionic tenders, such as Fatty alcohol ether sulfate or fatty alcohol sulfate, nonionic surfactants such as alkyl polyglycoside and zwitterionic surfactants, e.g. Betaines, in hand dishwashing liquid, so you get - probably because of the formation of liquid crystalline phases - often highly viscous, bad dosed and poorly soluble products. If you try using additional solvents Ensuring a lowering of viscosity, on the one hand, worsens in some If the storage stability of the agents, on the other hand, a low-viscosity product is less precisely dosed. Even with dried burnt dirt can be very targeted Stains are treated. Here a thickened product has clear advantages in the Application.

However, none of the compositions proposed in the prior art is suitable as precisely metered, excellent cleaning, hand-compatible, temperature and storage stable, pourable and ecologically particularly compatible hand dishwashing liquid specific viscosity profile.

Precisely metered, lightfast, excellent cleaning, hand-compatible, temperature and storage-stable, pourable and ecologically particularly compatible products with good casting properties and excellent cleaning performance you get when you mix from fatty alcohol ether sulfate, possibly fatty alcohol sulfate, alkyl polyglycoside and betaine together with provides a polymer.

The present invention relates to a pourable, storage-stable hand dishwashing detergent, containing a surfactant mixture of anionic surfactants and / or nonionic surfactants and / or betaine surfactants containing between 0.01 and 5% by weight of polymers contains and has a specific viscosity profile.

In the context of the present invention, unless otherwise stated, fatty acids or fatty alcohols or their derivatives are representative of branched or unbranched carboxylic acids or alcohols or their derivatives, preferably having 6 to 22 carbon atoms. The former are preferred for ecological reasons, in particular because of their vegetable basis than based on renewable raw materials, but without restricting the teaching according to the invention to them. In particular, the rule for example after the Roelen oxo process available Oxo-alcohols or their derivatives are used accordingly.

Particularly suitable surfactant mixtures are those made from anionic and nonionic surfactants. But also the use of betaine surfactants in a mixture, especially in combination with anionic and nonionic surfactants, can be very useful for many applications his. Overall, the surfactants are used in amounts of 0.2 to 60% by weight, preferably from 1 to 55% by weight, particularly preferably 3 to 50% by weight and extremely preferably 5 up to 45% by weight.

Polymers in the sense of the present invention are polycarboxylates or carboxyvinyl polymers, preferably homo- and copolymers of acrylic acid, especially acrylic acid polymers and acrylic acid-methacrylic acid copolymers, heteropolysaccharides (xanthan, guar, propoxylated guar) and somewhat less preferred other polymeric thickeners known in the market.

Anionic surfactants according to the present invention can be aliphatic sulfates such as fatty alcohol sulfates, fatty alcohol ether sulfates, dialkyl ether sulfates, monoglyceride sulfates and aliphatic sulfonates such as alkane sulfonates, olefin sulfonates, ether sulfonates, n- alkyl ether sulfonates, ester sulfonates and lingin sulfonates. Fatty acid cyanamides, sulfosuccinic acid esters, fatty acid isethionates, acylaminoalkane sulfonates (fatty acid taurides), fatty acid sarcosinates, ether carboxylic acids and alkyl (ether) phosphates can also be used in the context of the present invention.

The fatty alcohol ether sulfates are particularly preferred in the context of the present invention. Fatty alcohol ether sulfates are products of sulfation reactions on alkoxylated Alcohols. The person skilled in the art generally understands alkoxylated alcohols to be the reaction products of alkylene oxide, preferably ethylene oxide, with alcohols, for the purposes of the present Invention preferred with longer-chain alcohols. Usually arises from n moles Ethylene oxide and a mole of alcohol, depending on the reaction conditions, a complex Mixture of addition products of different degrees of ethoxylation. Another The alkoxylation is carried out using mixtures of the alkylene oxides, preferably the mixture of ethylene oxide and propylene oxide. Very particularly preferred in For the purposes of the present invention, lower ethoxylated fatty alcohols having 1 to 4 ethylene oxide units (EO), in particular 1 to 2 EO, for example 1.3 EO.

The anionic surfactants are preferably used in amounts between 0.2 and 49.8% by weight, preferably 5 to 45% by weight, particularly preferably 10 to 40% by weight.

In a preferred embodiment of the invention, the compositions contain 0.5 to 15% by weight. Fatty alcohol sulfates.

Nonionic surfactants in the context of the present invention can be alkoxylates such as Polyglycol ether, fatty alcohol polyglycol ether, alkylphenol polyglycol ether, end group capped Polyglycol ethers, mixed ethers and hydroxy mixed ethers and fatty acid polyglycol esters. Ethylene oxide, propylene oxide, block polymers and fatty acid alkanolamides can also be used and fatty acid polyglycol ether. An important class of nonionic surfactants, the can be used according to the invention are the polyol surfactants and here in particular Glucose surfactants such as alkyl polyglycosides and fatty acid glucamides. Those are particularly preferred Alkylpolyglucosides.

Alkyl polyglycosides are surfactants which can be obtained by the reaction of, sugars and alcohols according to the relevant methods of preparative organic chemistry, which, depending on the type of production, results in a mixture of monoalkylated, oligomeric or polymeric sugars. Preferred alkyl polyglycosides can be alkyl polyglucosides, the alcohol being particularly preferably a long-chain fatty alcohol or a mixture of long-chain fatty alcohols with branched or unbranched C ₈ to C ₁₈ alkyl chains and the degree of oligomerization (DP) of the sugars between 1 and 10, preferably 1 to 6, is in particular 1.1 to 3, most preferably 1.1 to 1.7.

The alkyl polyglycosides are preferably used in amounts between 0.1 to 14.9% by weight, in particular 1 to 8% by weight and extremely preferably 1 to 5% by weight.

To the zwitterionic surfactants or amphoteric surfactants used according to the invention include the alkyl betaines, the alkyl amido betaines, the imidazolinium betaines and the aminopropionates as well as the amino oxides, sulfobetaines and biosurfactants. On the preferred ingredient here is alkylamidobetaine.

These zwitterionic surfactants are preferably used in amounts between 0.1 to 14.9% by weight, in particular between 0.5 to 10% by weight, extremely preferably between 1 to 8% by weight.

(a) 0,2 bis 49,8 Gew.-%, bevorzugt 5 bis 45 Gew.-%, besonders bevorzugt 10 bis 40 Gew.-%, anionische Tenside, insbesondere Fettalkoholethersulfate,

(b) 0,1 bis 14,9 Gew.-%, bevorzugt 1 bis 8 Gew.-%, nichtionische Tenside, insbesondere Alkylpolyglucoside, und

(c) 0,1 bis 14,9 Gew.-%, bevorzugt 0,5 bis 10 Gew.-%, Betaintenside, insbesondere Alkylamidobetaine.

In a preferred embodiment of the hand dishwashing detergent according to the invention, the surfactant mixture contains

(a) 0.2 to 49.8% by weight, preferably 5 to 45% by weight, particularly preferably 10 to 40% by weight, of anionic surfactants, in particular fatty alcohol ether sulfates,

(b) 0.1 to 14.9% by weight, preferably 1 to 8% by weight, of nonionic surfactants, in particular alkyl polyglucosides, and

(c) 0.1 to 14.9% by weight, preferably 0.5 to 10% by weight, betaine surfactants, in particular alkylamido betaines.

As solubilizers, for example for dyes and perfume oils, for example alkanolamines, Polyols such as ethylene glycol, 1,2-propylene glycol, glycerin and other mono- and polyvalent Alcohols and alkylbenzenesulfonates with 1 to 3 carbon atoms in the alkyl radical are used.

The agents according to the invention have a Brookfield viscosity (measured with the spindle recommended for the respective viscosity range) at 20 ° C. and a shear rate of 10 s ^-1 between 1,000 and 10,000 mPa · s, preferably between 1,300 and 9,000 mPa · s and particularly preferred between 1,500 and 7,000 mPas or at 20 ° C. and a shear rate of 30 s ^-1 between 500 and 8,000 mPas, preferably between 900 and 7,000 mPas and particularly preferably between 1,100 and 6,000 mPas.

Preferred zero shear viscosity values η ₀ for favorable storage properties are between 1,000 and 10,000 Pa · s, preferably between 1,000 and 5,000 Pa · s.

The viscosity of the agents according to the invention can be between 0.01 and 5% by weight, preferably between 0.02 and 4% by weight, particularly preferably between 0.05 and 3% by weight, in particular between 0.1 and 1.5% by weight and very preferably between 0.2 and 0.9 wt .-%, are set. The amounts can vary from polymer to polymer his. The surfactant composition used also plays a role in the choice of quantity a role. Methacrylic acid-acrylic acid copolymers have been found to be particularly suitable as well as acrylic acid polymers.

It was surprisingly found that particularly suitable polymers, in particular an acrylic acid polymer from Goodrich ( Carbopol® EX 473), an acrylic acid copolymer from 3V Sigma ( Polygel® W30 ) and a methacrylic acid-acrylic acid copolymer from Polymer Latex ( Rohagit® SD 15 ) are. Natural polymers, such as guar or xanthan, do not meet all of the high requirements for solubility and storage stability that consumers now place on modern hand dishwashing detergents and are therefore less preferred.

Clarity is of particular importance here - especially from the point of view of the user of the products. Deposition of phases or ingredients as well as a cloudy appearance is usually not desired.

In this regard, particular advantages are obtained if one or more dicarboxylic acids and / or their salts are added to the thickened mixtures, alone or in a mixture, in particular a composition of Na salts of adipic, succinic and glutaric acid, as described, for example, under the trade name Sokalan ® DSC Na is available. The use of 0.1 to 8 wt.%, Preferably 0.5 to 7 wt.%, Particularly preferably 0.8 to 6 wt.% And extremely preferably 1 to 4 wt. %, shown.

A change in the dicarboxylic acid (salt) content can - especially in amounts above 2% by weight - contribute to a clear solution of the ingredients. Is also within The viscosity of the mixture can be influenced by this agent within certain limits. This component also influences the solubility of the mixture.

Instead of or in addition to the dicarboxylic acids and / or their salts, others can also Salts are advantageously used individually or in mixtures, such as sodium formate, Sodium acetate, sodium tartrate, sodium chloride and magnesium chloride or else Salts of the aforementioned anions with other alkali or alkaline earth metals.

The dicarboxylic acid or salt component serves to achieve clear, homogeneous formulations and influences the viscosity as well as the cold and dissolving behavior. Without these Auxiliary component, the agents can show an opaque to slightly cloudy appearance. The Combination of polymer with this auxiliary component enables the production of clear gel-like agents with good cold and dissolving behavior.

Another cheap component of the agents according to the invention are solvents (e.g. Alcohols, especially low molecular weight alcohols such as ethanol). You contribute to the familiarization of perfume and dye, prevent the formation of liquid crystalline phases and have Share in the formation of clear products. However, too much solvent causes too much solvent Decrease in viscosity. Therefore, according to the invention, between 3 and 12% by weight of one or contain several solvents, preferably between 4 and 10 wt .-%, particularly preferred between 5 and 10% by weight.

The amount of solvent also has an influence on the homogeneity and the viscosity of the agents according to the invention. At low levels of solvent, especially below 3% by weight, inhomogeneities can occur depending on the composition of the agent. The Viscosity can be reduced by increasing the amount of solvent.

A key factor is solubility. Agents according to the invention naturally have a different dissolving behavior than conventional hand dishwashing detergents. Enough for one fast dissolution time must therefore be observed.

Agents according to the invention dissolve in the usual dilution in the hand-rinse basin between 10 and 240 seconds, preferably between 15 and 120 seconds, particularly preferably between 20 and 100 seconds. The dissolution time is from the thickening and depending on the selected surfactant combinations.

The lightfastness of the products is a particularly important factor. The consumer prefers colored - i.e. dye-containing products in translucent bottles. This results in high demands on the lightfastness of the agents. The is particularly suitable here Use of acrylic acid polymers as well as acrylic acid-methacrylic acid copolymers.

In this context, the use of UV stabilizers can also be used according to the invention respectively. From the point of view of production costs, however, a waiver is particularly favorable such agents, since they often do not contribute to cleaning performance.

Many of the mixtures investigated according to the invention show a viscosity profile that changes over time. This is particularly desirable because the production process uses a thinner fluid Mass is preferred, but in terms of storage stability and ease of use more viscous products.

A further improved cleaning performance, especially with burnt-on dirt when using abrasives, preferably water-soluble abrasives, especially alkali metal bicarbonate, alkali metal sulfate and the like.

In addition, other ingredients common in hand dishwashing detergents, such as defoamers, Structuring agents, perfumes, dyes, corrosion inhibitors and preservatives, be contained in amounts of up to 5 wt .-%.

The pH of the agents according to the invention can be adjusted using conventional pH regulators, for example Citric acid or NaOH, are set, whereby - essentially because of required hand tolerance - a range from 5.5 to 8, preferably 6 to 7.5, in particular 6.5 to 7.1 is preferred.

The hand dishwashing detergents according to the invention can be stirred together of the individual components in any order and leave the mixture to produce for freedom from bubbles. The order of preparation is not for the preparation of the agent crucial.

Water, surfactants and optionally further ones of the aforementioned are preferably used here Ingredients stirred together. Insofar as perfume and / or dye are used, it is then added to the solution obtained. Eventually the polymer added, optionally in the form of an aqueous solution, to make it homogeneous Facilitate dissolving. Finally, the pH is adjusted as previously described.

Examples example 1

Agents E1 to E30 according to the invention were prepared as described above and their pH, viscosity, cold cloud or clear point and dissolution time were determined.

The compositions of the agents E1 to E30 according to the invention in% by weight and the specific properties are shown in Tables 1 to 4. In addition, agents E1 to E30 according to the invention contained traces of dye. The pH of the agents E1 to E30 according to the invention was adjusted to between 6.5 and 7.1 using citric acid.

The viscosity was determined at 20 ° C according to Brookfield ( Brookfield LV DV II + viscometer; spindle 25; shear rate 30 min ^-1 ).

The cold cloud point was determined by cooling a sample in the cryostat with a cooling rate of 0.2 ° C.min ^-1 , the cold cloud point being the temperature at which a slight cloudiness was first detected. After the sample was completely cloudy, the mixture was heated at a heating rate of 0.2 ° C.min ^-1 . The temperature at which the sample is completely clear for the first time is given as the clear point.

To determine the dissolution time, 1 ml of the agent was added with stirring at 325 revolutions · min ^-1 in 900 ml of tap water at 40 ° C. and the time until the detergent was completely dissolved.

The rinsing performance of the recipes according to the invention was also largely determined. The determination was carried out in a semi-automatic plate test apparatus using two different pure grease stains (the average is indicated) and a greasy mixed stain. Plates soiled with the test soiling at a constant temperature of 40 or 45 ° C in 5 l of water with a hardness of 16 ° under constant conditions compared to a high-quality classic hand dishwashing liquid as a laboratory standard until the foam - which was formed before the start of the test - was destroyed was and the plates were no longer clean. The concentration of the agent was 2 ml per 5 l of water or, in the case of agents E25 to E28, 4 ml per 5 l of water. The number of dishes washed is in relation to the laboratory standard with a washing performance of 100%. E1 E2 E3 E4 E5 E6 E7 C ₁₂ alcohol ether sulfate (2EO) Na salt - - 31.5 - - - - C _12/14 alcohol ether sulfate (2EO) Na salt 20.0 20.0 - - - - - C _12/14 alcohol ether sulfate (1,3EO) Na salt - - - 31.5 31.5 31.5 31.5 C _12/14 alcohol sulfate Na salt 11.5 11.5 - - - - - C ₁₂ alkyl polyglucoside, DP = 1.2 - - 5.0 - - - - C _12/16 alkyl polyglucoside, DP = 1.4 5.0 5.0 - 5.0 3.0 3.0 3.0 cocoamidopropyl 3.0 3.0 3.0 3.0 5.0 5.0 5.0 dicarboxylic acid 2.5 2.5 2.5 2.5 2.5 2.5 2.5 ( Sokalan® DCS Na) Na-formate - - - - - - - Na-chloride - - - - - - - ethanol 5.0 5.0 5.0 5.0 5.0 5.0 5.0 Perfume 0.7 0.7 0.7 0.7 0.7 0.7 0.7 Polymer ( Carbopol® EX 473) 0.2 - 0.3 0.2 0.4 0.6 - Polymer ( Polygel® W 30) - - - - - - - Polymer ( Rohagit® SD 15) - 0.2 - - - - 0.05 Water ad 100 100 100 100 100 100 100 PH value 6.7 6.8 6.9 6.8 7.0 6.7 6.7 Viscosity at 20 ° C [MPa.s] 2650 3100 3050 2300 2200 3750 2350 Cold cloud / clear point [° C] + 4 / + 8 + 4 / + 6 + 3 / + 5 + 3 / + 5 + 3 / + 4 + 4 / + 6 + 4 / + 6 dissolution time [Sec] 40 46 43 38 44 75 37 Rinsing performance on greasy dirt [%] 100 100 - 100 107 107 107 Rinsing performance on mixed dirt [%] 102 102 - 102 110 110 110 E8 E9 E10 E11 E12 E13 E14 C ₁₂ alcohol ether sulfate (2EO) Na salt - - - - - - - C _12/14 alcohol ether sulfate (2EO) Na salt 20.0 - 20.0 - C _12/14 alcohol ether sulfate (1,3EO) Na salt - 31.5 - 31.5 31.5 31.5 31.5 C _12/14 alcohol sulfate Na salt 11.5 - 11.5 - - - - C ₁₂ alkyl polyglucoside, DP = 1.2 - - - - - - - C _12/16 alkyl polyglucoside, DP = 1.4 3.0 3.0 3.0 3.0 3.0 3.0 1.5 cocoamidopropyl 5.0 5.0 5.0 7.0 7.0 7.0 7.0 dicarboxylic acid 2.5 2.5 2.5 1.0 2.5 3.0 2.0 ( Sokalan® DCS Na) Na-formate - - - - - - - Na-chloride - - - - - - - ethanol 5.0 5.0 5.0 6.0 7.0 7.0 5.5 Perfume 0.7 0.7 0.7 0.7 0.7 0.7 0.7 Polymer ( Carbopol® EX 473) - - - 0.4 1.5 1.5 0.4 Polymer ( Polygel® W 30) - 0.3 0.7 - - - - Polymer ( Rohagit® SD 15) 0.35 - - - - - - Water ad 100 100 100 100 100 100 100 PH value 6.5 6.7 7.1 6.9 6.7 6.6 6.7 Viscosity at 20 ° C [MPa.s] 3350 2500 3800 1950 2150 2950 2000 Cold cloud / clear point [° C] + 4 / + 6 + 3 / + 4 + 3 / + 4 + 4 / + 5 + 1 / + 3 -2 / + 1 + 4 / + 6 dissolution time [Sec] 54 44 58 48 33 33 46 Rinsing performance on greasy dirt [%] 107 107 107 - - - 113 Rinsing performance on mixed dirt [%] 110 110 110 - - - 118 E15 E16 E17 E18 E19 E20 E21 C ₁₂ alcohol ether sulfate (2EO) Na salt - - - - - - - C _12/14 alcohol ether sulfate (2EO) Na salt - - - 18.0 - - 18.0 C _12/14 alcohol ether sulfate (1,3EO) Na salt 31.5 30.0 33.0 - 27.0 27.0 - C _12/14 alcohol sulfate Na salt - - - 9.0 - - 9.0 C ₁₂ alkyl polyglucoside, DP = 1.2 - - - - - - - C _12/16 alkyl polyglucoside, DP = 1.4 1.5 3.0 1.5 2.5 2.5 2.5 2.5 cocoamidopropyl 7.0 7.0 7.0 2.5 2.5 2.5 2.5 dicarboxylic acid 2.0 1.5 2.0 2.5 2.5 2.5 - ( Sokalan ® DCS Na) Na-formate - - - - - - 3.0 Na-chloride - - - - - - - ethanol 5.5 5.5 5.5 6.0 7.0 5.0 5.0 Perfume 0.7 0.7 0.7 0.6 0.6 0.6 0.4 Polymer ( Carbopol® EX 473) - 0.5 0.45 0.2 1.2 0.2 0.4 Polymer ( Polygel® W 30) 0.3 - - - - - - Polymer ( Rohagit® SD 15 ) - - - - - - - Water ad 100 100 100 100 100 100 100 PH value 6.7 6.8 6.8 6.5 6.7 6.7 6.5 Viscosity at 20 ° C [MPa.s] 2050 1950 2000 1950 2150 4000 3900 Cold cloud / clear point [° C] + 3 / + 5 + 4 / + 5 + 4 / + 4 + 2 / + 5 + 2 / + 5 + 4 / + 5 + 3 / + 6 dissolution time [Sec] 44 43 51 28 32 35 35 Rinsing performance on greasy dirt [%] 113 95 95 95 95 Rinsing performance on mixed dirt [%] 118 83 83 83 83 E22 E23 E24 E25 E26 E27 E28 C ₁₂ alcohol ether sulfate (2EO) Na salt - - 18.0 - - - - C _12/14 alcohol ether sulfate (2EO) Na salt 18.0 18.0 - - - 9.0 9.0 C _12/14 alcohol ether sulfate (1,3EO) Na salt - - - 13.5 13.5 - - C _12/14 alcohol sulfate Na salt 9.0 9.0 9.0 - - 4.5 4.5 C ₁₂ alkyl polyglucoside, DP = 1.2 - - 2.5 - - - 2.0 C _12/16 alkyl polyglucoside, DP = 1.4 2.5 2.5 - 2.0 2.0 2.0 - cocoamidopropyl 2.5 2.5 2.5 1.3 1.3 1.3 1.3 dicarboxylic acid - - 2.5 - - - - ( Sokalan® DCS Na) Na-formate 3.0 3.0 - - - - - Na-chloride - - - 1.0 1.2 0.75 0.8 ethanol 5.0 5.0 5.0 - - - - Perfume 0.4 0.4 0.4 0.3 0.3 0.3 0.3 Polymer ( Carbopol® EX 473) - - 0.15 - - - 1.0 Polymer ( Polygel ® W 30) 0.25 - - 0.4 0.4 0.5 - Polymer ( Rohagit® SD 15) - 0.2 - - - - - Water ad 100 100 100 100 100 100 100 PH value 7.0 7.1 6.9 6.8 6.8 6.9 6.5 Viscosity at 20 ° C [MPa.s] 3690 3800 2700 5950 6700 4450 2550 Cold cloud / clear point [° C] + 3 / + 6 + 3 / + 6 + 3 / + 5 + 1 / + 5 + 2 / + 5 + 1 / + 4 + 1 / + 3 dissolution time [Sec] 35 31 32 25 27 22 23 Rinsing performance on greasy dirt [%] 95 95 - 92 92 92 92 Rinsing performance on mixed dirt [%] 83 83 - 89 89 89 89 E29 E30 C ₁₂ alcohol ether sulfate (2EO) Na salt - - C _12/14 alcohol ether sulfate (2EO) Na salt - - C _12/14 alcohol ether sulfate (1,3EO) Na salt 31.5 33 C _12/14 alcohol sulfate Na salt - - C ₁₂ alkyl polyglucoside, DP = 1.2 - - C _12/16 alkyl polyglucoside, DP = 1.4 5 6 cocoamidopropyl 3 3 dicarboxylic acid - - ( Sokalan® DCS Na ) Na citrate 4 - Na acetate - 4 ethanol 5 5 Perfume 0.7 0.7 Polymer ( Carbopol® EX 473) 0.1 0.1 Polymer ( Polygel® W 30) - - Polymer ( Rohagit® SD 15 ) - - Water ad 100 100 PH value 6.8 7.0 Viscosity at 20 ° C [MPa.s] 2800 2500 Cold cloud / clear point [° C] + 4 / + 6 + 4 / + 6 dissolution time [Sec] 41 83 Rinsing performance on greasy dirt [%] - - Rinsing performance on mixed dirt [%] - -

Example 2

The thickening effect of the polymers and the further positive influence of the thickeners on the Other properties of the hand dishwashing detergent according to the invention are also exemplary illustrated by the following recipes (production and methods, unless otherwise specified as example 1).

31,5 Gew.-% C₁₂Alkoholethersulfat(2EO)Na-Salz

5 Gew.-% C₁₂-Alkylpolyglucosid d_p1,2

3 Gew.-% Cocoamidobetain

2,5 Gew.-% Dicarbonsäuregemisch (Sokalan®-DSC-Na)

5 Gew.-% Ethanol

0,7 Gew.-% Parfum

1,0 Gew.-% Polymer

Spuren von Farbstoff

Wasser ad 100

recipe:

31.5% by weight of C ₁₂ alcohol ether sulfate (2EO) Na salt

5% by weight of C ₁₂ alkyl polyglucoside d _p 1.2

3% by weight cocoamidobetaine

2.5% by weight dicarboxylic acid mixture (Sokalan®-DSC-Na)

5% by weight ethanol

0.7% by weight perfume

1.0 wt% polymer

Traces of dye

Water ad 100

The polymers used were acrylic acid polymer, acrylic acid-methacrylic acid copolymer and carboxyvinyl polymer used.

The following parameters were observed in the case of the acrylic acid polymer:

Viscosity (20 ° C) 5700 mPas; Cold cloud point +2 ° C / + 6 ° C; Dissolution time 81 seconds

A change in the Sokalan DSC ® content in amounts above 2% by weight resulted in a clear solution of the ingredients. The viscosity of the mixture can also be influenced by this agent within certain limits. Another influence of the Sokalan DSC ® was found on the solubility of the mixture.

The amount of ethanol also has an influence on the homogeneity and the viscosity. With variation the amount of solvent in the above recipe shows an inhomogeneity below 4% by weight. However, this can differ from recipe to recipe. The viscosity can be influenced (reduced) by increasing the amount of solvent.

In a usual smell test by experts, the different recipes were cut differentially, but overall good.

In a test for light resistance (Xenotest 150), in which the stability of a UV sensitive Component (dye) was tested, the different recipes cut differentiable well off.

In a test of a mixture according to the invention for rinsing properties, a composition was carried out analogously to the recipe but with 0.7% by weight Carbopol® EX 473 (acrylic acid polymer).

The viscosity was 3500 to 4000 m · Pas, the dissolution time between 45 to 70 seconds.

The cleaning performance of dirt was very good, the cleaning performance of grease was above average good, the foaming power with and without oil was good, as was the emulsifying power.

The thickened product therefore has a stronger effect than comparable hand dishwashing detergents.

Claims (13)

1. Pourable storage-stable hand dishwashing composition comprising a surfactant mixture of anionic surfactants and/or nonionic surfactants and/or betaine surfactants, characterized in that it comprises between 0.01 and 5% by weight of polymers and, at 20°C and a shear rate of 10 s^-1, has a viscosity between 1000 and 10 000 mPa·s and, at 20°C and a shear rate of 30 s^-1, has a viscosity between 500 and 8000 mPa·s.
2. Composition according to Claim 1, characterized in that, at 20°C and a shear rate of 10 s^-1, it has a viscosity between 1300 and 9000 mPa·s, particularly preferably between 1500 and 7000 mPa·s and, at 20°C and a shear rate of 30 s^-1, has a viscosity between 900 and 7000 mPa·s, particularly preferably between 1100 and 6000 mPa·s.
3. Composition according to Claim 1 or 2, characterized in that the surfactant mixture comprises anionic and nonionic surfactants.
4. Composition according to one of Claims 1 to 3, characterized in that the surfactant mixture comprises betaine surfactants.
5. Composition according to one of Claims 1 to 4, characterized in that it comprises alkyl polyglycosides, preferably alkylpolyglucosides, as a nonionic surfactant.
6. Composition according to one of Claims 1 to 5, characterized in that it comprises between 0.05 and 3% by weight, preferably 0.1 to 1.5% by weight and particularly preferably between 0.2 and 0.9% by weight, of polymers.
7. Composition according to one of Claims 1 to 6, characterized in that the polymers are chosen from the group of acrylic acid polymers, of acrylic acid-methacrylic acid copolymers and of carboxyvinyl polymers.
8. Composition according to one of Claims 1 to 7, characterized in that it comprises 0.2 to 60% by weight, preferably 1 to 55% by weight, particularly preferably 3 to 50% by weight, most preferably 5 to 45% by weight, of surfactant mixture.
9. Composition according to one of Claims 1 to 8, characterized in that it comprises

   (a) 0.2 to 49.8% by weight, preferably 5 to 45% by weight, particularly preferably 10 to 40% by weight, of anionic surfactants, in particular fatty alcohol ether sulphates,

   (b) 0.1 to 14.9% by weight, preferably 1 to 8% by weight, of nonionic surfactants, in particular alkyl polyglucosides, and

   (c) 0.1 to 14.9% by weight, preferably 0.5 to 10% by weight, of betaine surfactants, in particular alkylamidobetaines.
10. Composition according to one of Claims 1 to 9, characterized in that between 0.5 and 15% by weight of fatty alcohol sulphates are additionally present.
11. Composition according to one of Claims 1 to 10, characterized in that, as a further ingredient, one or more dicarboxylic acids and/or salts thereof or sodium formate, sodium acetate, sodium tartrate, sodium chloride or magnesium chloride or salts of the abovementioned anions with other alkali metal or alkaline earth metals, on their own or in a mixture, preferably in amounts of from 0.1 to 8% by weight, particularly preferably between 0.5 and 7% by weight, are present.
12. Composition according to one of Claims 1 to 11, characterized in that a solvent, for example one or more lower molecular weight alcohols, e.g. ethanol, is present in amounts preferably between 3 and 12% by weight, in particular between 4 and 10% by weight.
13. Composition according to one of Claims 1 to 12, characterized in that it comprises further ingredients customary in hand dishwashing compositions, such as UV stabilizers, antifoams, solvents, structuring agents, perfume substances, dyes, corrosion inhibitors, preservatives and the like.