WO2015086410A1

WO2015086410A1 - Cleaning performance enhancer for automatic dishwasher detergents

Info

Publication number: WO2015086410A1
Application number: PCT/EP2014/076458
Authority: WO
Inventors: Nina Mussmann; Inga Kerstin Vockenroth; Noelle Wrubbel; Thorsten Bastigkeit
Original assignee: Henkel Ag & Co. Kgaa
Priority date: 2013-12-10
Filing date: 2014-12-03
Publication date: 2015-06-18
Also published as: EP3080239B1; EP3080239A1; PL3080239T3; DE102013225485A1

Abstract

The invention relates to the use of a composition for enhancing the cleaning performance of automatic dishwasher detergents on bleachable tough dirt from burnt cookware. Said composition has a pH value of 7-14 and comprises a strong organic builder from the class of amino carboxylic acids. The invention also relates to a method for automatically washing dishes using said cleaning performance enhancer and to a combined product containing said cleaning performance enhancer along with an automatic dishwasher detergent.

Description

Cleaning force intensifier for automatic dishwashing detergents

The present invention relates to a cleaning force intensifier for mechanical

Dishwashing detergent, which improves their cleaning performance against bleachable and stubborn, burned stains and together with a machine

Dishwashing detergent can be used in a normal dishwashing, as well as a

Combination product containing this detergency booster together with a machine dishwashing detergent. It also covers the use of this

A cleaning force enhancer for improving the cleaning performance of a machine dishwashing detergent and a method for cleaning dishes in an automatic dishwasher using this cleaning force booster.

The most important criterion in automatic dishwashing is the cleaning performance of a variety of stains, which in the form of food leftovers in the

Dishwasher be introduced. In particular, there is a general need for

Dishwashing agents with increased cleaning performance on bleachable stains, such as tea, or stubborn, burned stains. One not

satisfactory cleaning performance of such soiling is observed especially in liquid, neutral cleaners, but also in phosphate-reduced or phosphate-free cleaners.

Although cleaning power boosters are generally known, they contain acids, especially citric acid. This leads to a lowering of the pH value in the rinsing liquor and to the loss of the alkalinity which is important for the rinsing performance, above all for the effective removal of burned-on soiling. The result is therefore a poorer cleaning result on stubborn, baked stains.

It is therefore an object of the present invention to provide a machine dishwashing detergent power booster which overcomes the known disadvantages.

It has now been found that a composition containing a strong organic

Contains complexing agent and has a total neutral to alkaline pH, the cleaning performance of conventional automatic dishwashing significantly improved.

In a first aspect, therefore, the present invention is directed to the use of a composition having a pH in the range 7-14, preferably 8.5-12, containing at least one organic builder, wherein the at least one organic builder is present in an amount of at least 25% by weight, in particular at least 30% by weight, preferably at least 35% by weight, particularly preferably at least 40% by weight, most preferably at least 45% by weight based on the composition, the absolute amount of the at least one organic builder in the composition is 1-25 g / job, preferably 2-20 g / job, more preferably 4-12 g / job, and the at least one organic builder one

Aminocarboxylic acid, which is preferably selected from methylglycine acetic acid (MGDA) and its salts, glutamic diacetic acid (GLDA) and its salts, and ethylenediaminediacetic acid (EDDA) and its salts, for improving the cleaning performance of a machine

Dishwashing detergent for automatic dishwashing in an automatic dishwashing machine

Dishwasher.

In the described use, the composition may be used together with a

automatic dishwashing detergent in a normal cleaning cycle for cleaning dirty dishes.

"At least one" as used herein includes, but is not limited to, 1, 2, 3, 4, 5, 6 and more.

"Normal cleaning cycle" as used herein refers to a program for cleaning dishes of an automatic dishwashing machine Such a cleaning cycle may include one or more pre-rinse steps, one or more main rinse steps, and one or more drying steps

Cleaning / rinsing soiled dishes.

"Cleaning performance" as used herein refers to the property of hard surfaces, particularly the surface of dishes, of stains, particularly

Food leftovers, free. An "improvement in cleaning performance" thus means an improved removal of such soiling compared to a reference method.

Likewise provided by the present invention is a method for cleaning and / or maintaining dishes in an automatic dishwashing machine, in which a composition (cleaning force booster) comprising at least one organic builder and a pH is used in a normal cleaning cycle in addition to a machine dishwashing detergent Value in the range 7-14, preferably 8.5-12, wherein the at least one organic builder in an amount of at least 25 wt.%, In particular at least 30 wt.%, Preferably at least 35 wt.%, Particularly preferably at least 40 % By weight, most preferably at least 45% by weight of the composition, the absolute amount of the at least one organic builder in the composition is 1-25 g / job, preferably 2-20 g / job, more preferably 4-12 g / job, and the at least one organic builder is an aminocarboxylic acid, which is preferably selected from methylglycines acetic acid (MGDA) and its salts, glutamic diacetic acid (GLDA) and its salts, and

Ethylenediaminediacetic acid (EDDA) and its salts. Finally, the present invention is also directed to a combination product comprising, in separate formulations, preferably in each pre-portioned form, a cleaning power fortification composition and an automatic dishwashing detergent

Dishwashing machines, wherein the cleaning power enhancer composition comprises at least one organic builder and has a pH in the range 7-14, preferably 8.5-12, wherein the at least one organic builder in an amount of at least 25 wt.%, In particular at least 30% by weight, preferably at least 35% by weight, more preferably at least 40% by weight, most preferably at least 45% by weight, based on the composition, of the absolute amount of the at least one organic builder in the composition is 1-25 g / job, preferably 2-20 g / job, more preferably 4-12 g / job, wherein the at least one organic builder is an aminocarboxylic acid, which is preferably selected from methylglycine acetic acid (MGDA) and its salts, glutamine diacetic acid (GLDA) and its salts, and ethylenediamine diacetic acid (EDDA) and their salts. The machine

Dishwashing detergent may be a liquid and / or solid dishwashing detergent conventionally used in the art, formulated, for example, as a tablet or pouch; Furthermore, it may be in a water-insoluble, water-soluble or water-dispersible film, in particular in a polyvinyl alcohol-containing film.

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. 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.

The strong organic builders used in the compositions herein are aminocarboxylic acids and / or their salts. Particularly preferred members of this class are methylglycinediacetic acid (MGDA) or its salts, and glutamic diacetic acid (GLDA) or its salts, or ethylenediaminediacetic acid (EDDA) or its salts, most preferably MGDA. Also suitable are iminodisuccinic acid (IDS) and iminodiacetic acid (IDA).

The organic builder is used in an amount of at least 25% by weight, in particular at least 30% by weight, preferably at least 35% by weight, more preferably at least 40% by weight, most preferably at least 45% by weight, based on the agent. In particular

Embodiments, the agent contains 30 to 100 wt.%, Preferably 30 to 90 wt .-%, 30 to 80% by weight, 30 to 70% by weight or 30 to 60% by weight of the at least one organic builder. In various embodiments, the amount of the at least one organic builder in the composition is at least 50 wt%, at least 55 wt%, at least 60 wt%, at least 65 wt%, at least 70 wt%, at least 75 wt%, at least 80% by weight, at least 85% by weight, at least 90% by weight or at least 95% by weight. The absolute amount of the at least one organic builder in the composition is 1-25 g / job, preferably 2-20 g / job, more preferably 4-12 g / job. The term "g / job" in this context means that the composition, ie the detergency booster, in a quantity and form intended for a single use contains the stated amount of organic builder g and more per

Application can achieve good results in increasing the cleaning performance of a machine dishwashing detergent.

The agents described herein may further contain at least one nonionic surfactant. As nonionic surfactants, it is possible to use all nonionic surfactants known to the person skilled in the art.

Suitable nonionic surfactants are, for example, alkyl glycosides of the general formula RO (G) x in which R is a primary straight-chain or methyl-branched, in particular 2-methyl-branched aliphatic radical having 8 to 22, preferably 12 to 18 carbon atoms and G is the symbol which is a glycose unit having 5 or 6 C atoms, preferably glucose. The degree of oligomerization x, which indicates the distribution of monoglycosides and oligoglycosides, is any number between 1 and 10; preferably x is 1, 2 to 1, 4.

Another class of useful nonionic surfactants that can be used either as the sole nonionic surfactant or in combination with other nonionic surfactants are alkoxylated, preferably ethoxylated or ethoxylated and propoxylated fatty acid alkyl esters, preferably having from 1 to 4 carbon atoms in the alkyl chain.

Nonionic surfactants of the amine oxide type, for example N-cocoalkyl-N, N-dimethylamine oxide and N-tallowalkyl-N, N-dihydroxyethylamine oxide, and the fatty acid alkanolamides may also be suitable. The amount of these nonionic surfactants is preferably not more than that of the ethoxylated fatty alcohols, especially not more than half thereof.

Further suitable surfactants are the polyhydroxy fatty acid amides known as PHFA.

However, low-foaming nonionic surfactants are preferably used, in particular alkoxylated, especially ethoxylated, low-foaming nonionic surfactants. With special The automatic dishwasher detergents preferably contain nonionic surfactants from the group of the alkoxylated alcohols.

Particular preference is given to nonionic surfactants which have a melting point above

Have room temperature. Nonionic (s) surfactants having a melting point above 20 ° C, preferably above 25 ° C, more preferably between 25 and 60 ° C and especially between 26.6 and 43.3 ° C, is / are particularly preferred.

Preferably used surfactants come from the groups of alkoxylated nonionic surfactants, in particular the ethoxylated primary alcohols and mixtures of these surfactants with structurally complicated surfactants such as polyoxypropylene / polyoxyethylene / polyoxypropylene ((PO / EO / PO) surfactants). Such (PO / EO / PO) nonionic surfactants are also characterized by good foam control.

Particularly preferred nonionic surfactants are those which contain alternating ethylene oxide and

Have alkylene oxide units. Among these, in turn, surfactants with EO-AO-EO-AO blocks are preferred, wherein in each case one to ten EO or AO groups are bonded to each other before a block of the other groups follows. Here are nonionic surfactants of the general formula

R -0- (CH ₂ -CH ₂ -0) - (CH ₂ -C H-0) - (CH ₂ -CH ₂ -0) _r (CH ₂ -C HO) - H

R2 R3

in which R is a straight-chain or branched, saturated or mono- or polyunsaturated Ce-24-alkyl or alkenyl radical; each group R ² or R ^{3 is} independently selected from -Chta, -CH 2 CH 3, -CH 2 CH 2 -CH 3, CH (CH 3) 2 and the indices w, x, y, z independently represent integers from 1 to 6.

Thus, particularly preferred are nonionic surfactants having a C9-alkyl group with 1 to 4 ethylene oxide units followed by 1 to 4 propylene oxide units, followed by 1 to 4

Ethylene oxide units followed by 1 to 4 propylene oxide units.

Preferred nonionic surfactants here are those of the general formula R -CH (OH) CH 2 O- (AO) w- (AO) x- (A "O) _y - (A"'O) z R ² , in which

R is a straight-chain or branched, saturated or mono- or polyunsaturated C 6-24-alkyl or alkenyl radical;

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

A, Α ', A "and A'" independently of one another are radicals from the group -CH ₂ CH ₂ , -CH ₂ CH ₂ -CH ₂ , -CH ₂ -CH (CH ₃ ), -CH ₂ -CH ₂ -CH ₂ -CH ₂ , -CH ₂ - CH (CH ₃ ) -CH ₂ -, - CH ₂ -CH (CH ₂ -CH ₃ ), w, x, y and z are values between 0.5 and 120, where x, y and / or z can also be 0.

Preference is given in particular to those end-capped, poly (oxyalkylated) nonionic surfactants which, in accordance with the formula R 0 [CH ₂ CH ₂ O] x CH ₂ CH (OH) R ² , in addition to a radical R 1 which is linear or branched, saturated or unsaturated, aliphatic or aromatic

Hydrocarbon radicals having 2 to 30 carbon atoms, preferably 4 to 22

Carbon atoms, further having a linear or branched, saturated or unsaturated, aliphatic or aromatic hydrocarbon radical R ² having 1 to 30 carbon atoms, wherein x for values between 1 and 90, preferably for values between 30 and 80 and in particular for values between 30 and 60 stands.

Particular preference is given to surfactants of the formula R 0 [CH 2 CH (CH 3) O] x [CH ² CH ² O] yCH ² CH (OH) R ² in which R is a linear or branched aliphatic hydrocarbon radical having 4 to 18 carbon atoms or mixtures thereof, R ^{2 is} a linear one or branched

Hydrocarbon radical having 2 to 26 carbon atoms or mixtures thereof and x for values between 0.5 and 1, 5 and y is a value of at least 15 stands.

The group of these nonionic surfactants include, for example, 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 ,

Particular preference is furthermore given to those end-capped poly (oxyalkylated) nonionic surfactants of the formula R 0 [CH ₂ CH ₂ O] x [CH ₂ CH (R ³ ) O] _y CH ₂ CH (OH) R ² in which R and R ² independently of one another are linear or branched , saturated or single or multiple

unsaturated hydrocarbon radical having 2 to 26 carbon atoms, R ^{3 is} independently selected from -CH 3, -CH 2 CH 3, -CH 2 CH 2 -CH 3, -CH (CH 3) 2, but preferably is -CH 3, and x and y independently of each other for between values 1 and 32, with nonionic surfactants with R ³ = -CH ³ and values for x of 15 to 32 and y of 0.5 and 1.5 being very particularly preferred.

Other preferred nonionic surfactants are the end-capped poly (oxyalkylated) nonionic surfactants of the formula R 0 [CH ₂ CH (R ³ ) O] x [CH ₂ ] k CH (OH) [CH ² ] jOR ² where R and R ^{2 are} linear or branched , saturated or unsaturated, aliphatic or aromatic

Hydrocarbon radicals having 1 to 30 carbon atoms, R ^{3 is} H or a methyl, ethyl, n-propyl, iso-propyl, n-butyl, 2-butyl or 2-methyl-2-butyl radical, x is Values between 1 and 30, k and j represent values between 1 and 12, preferably between 1 and 5. When the value x> 2, each R ³ in the above formula R 0 [CH ₂ CH (R ³ ) O] x [CH ₂ ] k CH (OH) [CH ² ] jOR ^{2 may be} different. R and R ² are preferably linear or branched, saturated or unsaturated, aliphatic or aromatic hydrocarbon radicals having 6 to 22

Carbon atoms, with radicals having 8 to 18 carbon atoms are particularly preferred. For the rest R ³ is H, -Chta or -CH 2 CH 3 particularly preferred. Particularly preferred values for x are in the range from 1 to 20, in particular from 6 to 15.

As described above, each R ³ in the above formula may be different if x> 2. As a result, the alkylene oxide unit in the square bracket can be varied. For example, when x is 3, the radical R ³ can be selected to form ethylene oxide (R ³ = H) or propylene oxide (R ³ = CH ³ ) units which may be joined in any order, for example (EO) (PO ) (EO), (EO) (EO) (PO), (EO) (EO) (EO), (PO) (EO) (PO),

(PO) (PO) (EO) and (PO) (PO) (PO). The value 3 for x has been selected here by way of example and may well be greater, the range of variation increasing with increasing x values and including, for example, a large number (EO) groups combined with a small number (PO) groups, or vice versa ,

Particularly preferred end-capped poly (oxyalkylated) alcohols of the above formula have values of k = 1 and j = 1, so that the above formula zu

R 0 [CH ₂ CH (R ³ ) O] x CH ₂ CH (OH) CH ₂ OR ² simplified. In the last-mentioned formula R 1, R ² and R ^{3 are} as defined above and x is from 1 to 30, preferably from 1 to 20 and in particular from 6 to 18. Particularly preferred are surfactants in which the radicals R and R ² Have 9 to 14 carbon atoms, R ^{3 is} H and x assumes values of 6 to 15.

Finally, the nonionic surfactants of the general formula R -CH (OH) CH ₂ O- (AO) _w -R ^{2 have} proved to be particularly effective, in which

R for a straight-chain or branched, saturated or on or

polyunsaturated C6-24 alkyl or alkenyl radical;

R ^{2 is} a linear or branched hydrocarbon radical having 2 to 26

Carbon atoms;

A is a radical from the group CH ₂ CH ₂ , CH ₂ CH ₂ CH ₂ , CH ₂ CH (CH ₃ ),

preferably CH 2 CH 2, and

w stands for values between 1 and 120, preferably 10 to 80, in particular 20 to 40.

The group of these nonionic surfactants include, for example, the C4-22 fatty alcohol (EO) io-so-2-hydroxyalkyl ethers, in particular also the C8-12 fatty alcohol (EO) 22-2-hydroxydecyl ethers and the C4-22 fatty alcohol (EO) 4o 8o-2-hydroxyalkyl ethers.

In various embodiments of the invention, instead of the above-defined end-capped hydroxy mixed ethers, the corresponding ones can not

end-capped hydroxy mixed ethers. These may satisfy the above formulas, but R ² is hydrogen and R, R ³ , A, Α ', A ", A'", w, x, y and z are as defined above. The compositions described herein, which comprise at least one nonionic surfactant, preferably a nonionic surfactant from the group of hydroxy mixed ethers, contain the surfactant in various embodiments in an amount based on the total weight of the composition of at least 5 wt.%, Preferably at least 10 wt. %. In specific embodiments, the amount may be more than 10% by weight, for example 1 1-15% by weight. For example, the amounts used per application may be in the range of 1 to 2-10 g / job, preferably in the range of 2 to 5 g / job.

In general, the pH of the compositions described herein can be adjusted by means of conventional pH regulators. According to the invention, the pH of the composition is in a range from 7.0 to 14.0, preferably 8.5 to 12. The pH adjusters are preferably alkalis. Suitable bases are selected from the group of alkali and alkaline earth metal hydroxides and carbonates, in particular the alkali metal carbonates, of which sodium carbonate is preferred.

The detergency enhancers described herein may contain at least one other ingredient, preferably selected from the group consisting of others

Builders, in particular alkali carriers, preferably alkali metal carbonates, particularly preferably sodium carbonate, other surfactants, in particular anionic surfactants, polymers, enzymes, corrosion inhibitors, glass corrosion inhibitors, Disintegrationshilfsmitteln, fragrances and perfume carriers.

In preferred embodiments, the agent is phosphate and / or phosphonate free. In other preferred embodiments, the agent is bleach-free. "Phosphate-free" and "phosphonate-free" as used herein means that the subject composition is substantially free of phosphates or phosphonates, i. in particular phosphates or phosphonates in amounts of less than 0.1 wt .-%, preferably less than 0.01 wt .-% based on the

Total composition contains. Analogously, "bleach-free" as used herein means that the composition of interest is substantially free of bleaching agents, ie known bleaching agents or substances suitable as bleaching agents in amounts less than 0.1% by weight, preferably less than 0.01% by weight. % based on the total composition.

Preferred anionic surfactants are fatty alcohol sulfates, fatty alcohol ether sulfates, dialkyl ether sulfates, monoglyceride sulfates, alkylbenzenesulfonates, olefinsulfonates, alkanesulfonates, ether sulfonates, n-alkyl ether sulfonates, ester sulfonates and lignosulfonates. Also usable in the context of the present invention are fatty acid cyanamides, sulfosuccinates (sulfosuccinic acid esters), in particular sulfosuccinic acid mono- and di-Cs-Os-alkyl esters, sulfosuccinamates,

Sulfosuccinamides, fatty acid isethionates, acylaminoalkanesulfonates (fatty acid taurides),

Fatty acid sarcosinates, ether carboxylic acids and alkyl (ether) phosphates and α-sulfofatty acid salts, acylglutamates, monoglyceride disulfates and alkyl ethers of glycerol disulfate. The anionic surfactants are preferably used as sodium salts, but may also be present as other alkali or alkaline earth metal salts, for example potassium or magnesium salts, and in the form of ammonium or mono-, di-, tri- or tetraalkylammonium salts, in the case of the sulfonates also in the form of their corresponding acid, eg dodecylbenzenesulfonic acid.

The additionally usable builders include in particular carbonates, organic

Cobuilders and silicates.

For example, it is possible to use carbonate (s) and / or bicarbonate (s), preferably alkali metal carbonate (s), more preferably sodium carbonate. Alkali carbonates, especially sodium carbonate, can, as mentioned above, also be used as pH adjusting agents and are contained in various embodiments of the invention in an amount of 15-50% by weight, preferably 20-40% by weight, based on the composition.

Particularly suitable organic co-builders are polycarboxylates / polycarboxylic acids, polymeric carboxylates, aspartic acid, polyacetals and dextrins.

Useful organic builders are, for example, the polycarboxylic acids which can be used in the form of the free acid and / or 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, nitrilotriacetic acid (NTA), if such use is not objectionable for ecological reasons, and mixtures thereof.

Other suitable builders are polymeric polycarboxylates, for example the alkali metal salts of polyacrylic acid or polymethacrylic acid, for example those having a relative molecular mass of 500 to 70,000 g / mol.

Suitable polymers are, in particular, polyacrylates which preferably have a molecular weight of 2,000 to 20,000 g / mol. Because of their superior solubility, the short-chain polyacrylates, which have molar masses of from 2000 to 10000 g / mol, and particularly preferably from 3000 to 5000 g / mol, may again be preferred from this group.

The agents can as a builder also crystalline layered silicates of general formula NaMSix02x + i ^■ y H2O wherein M is sodium or hydrogen, x is a number from 1, 9 to 22, preferably from 1: 9 to 4, particularly preferred values for x 2, 3 or 4, and y is a number from 0 to 33, preferably from 0 to 20. Can also be used amorphous

Sodium silicates with a modulus of Na2Ü: S1O2 of 1: 2 to 1: 3.3, preferably of 1: 2 to 1: 2.8 and in particular from 1: 2 to 1: 2.6, which are preferably delayed release and

Have secondary washing properties.

In preferred compositions, the content of silicates, based on the total weight of the

Dishwashing agent, limited to amounts below 10 wt .-%, preferably below 5 wt .-% and in particular below 2 wt .-%. Particularly preferred agents are silicate-free.

As perfume oils or fragrances can in the context of the present invention, individual

Fragrance compounds, e.g. the synthetic products of the ester, ether, aldehyde, ketone, alcohol and hydrocarbon type are used. However, preference is given

Used mixtures of different fragrances, which together create an appealing scent. Such perfume oils may also contain natural fragrance mixtures such as are available from vegetable sources, e.g. Pine, citrus, jasmine, patchouli, rose or ylang-ylang oil.

The formulation of cleaning enhancers described herein can be done in different ways. The funds may be in fixed or liquid form. As solid

Supply forms are in particular powders, granules, extrudates, compacts, in particular tablets. The liquid supply forms based on water and / or organic solvents may be thickened, in the form of gels or pastes.

The agents described herein are preferably preformed into dosage units. These metering units preferably comprise the amount of cleaning-active substances necessary for the desired cleaning power boost. Preferred metering units have a weight between 12 and 50 g, preferably between 25 and 40 g and in particular between 30 and 36 g. In order to achieve an optimum cleaning result, preference is given to those agents which are in the form of a prefabricated dosing unit and between 1 and 25, preferably between 2 and 20 g, more preferably between 4 and 12 g of the organic builder and optionally between 1, 2 and 10 g , preferably between 2 and 5 g of nonionic surfactant (s). The volume of the aforementioned metering units and their spatial form are selected with particular preference so that the metering of the prefabricated units can not take place via the metering chamber of a dishwasher, but the unit must be placed directly into the interior of the dishwasher.

In the combination products described herein, both the detergency boosters described herein and the dishwashing detergent are preferably in pre-assembled dosage units. Preferred dosing units of the dishwashing detergents have a weight of between 12 and 30 g, preferably between 15 and 25 g and in particular between 18 and 22 g. The volume of the aforementioned metering units and their spatial form are with particular preference chosen so that the metering of the prefabricated units can be done via the metering chamber of a dishwasher.

The compositions and compositions described herein, especially the prefabricated dosage units of the cleaning power enhancers, but also those of the dishwashing compositions, most preferably comprise a water-soluble coating.

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. Particularly preferred are films which, for example, can be glued and / or sealed to packages such as hoses or cushions after being filled with an agent.

It is preferred that the water-soluble coating be polyvinyl alcohol or a

Contains polyvinyl alcohol copolymer. Water-soluble coatings containing polyvinyl alcohol or a polyvinyl alcohol copolymer have a good stability with a sufficiently high water solubility, in particular cold water solubility on.

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 in the range of 10,000 to 1,000,000 gmol ^"1 , preferably from 20,000 to 500,000 gmol ^{" 1} , more preferably from 30,000 to 100,000 gmol ^"1 and in particular from 40,000 to 80,000 gmol ¹ .

The production of polyvinyl alcohol is usually carried out by hydrolysis of polyvinyl acetate, since the direct synthesis route is not possible. The same applies to polyvinyl alcohol copolymers which are prepared from correspondingly polyvinyl acetate copolymers. It is preferred if at least one layer of the water-soluble coating comprises a polyvinyl alcohol whose degree of hydrolysis makes up 70 to 100 mol%, preferably 80 to 90 mol%, particularly preferably 81 to 89 mol% and in particular 82 to 88 mol%.

In addition, a polymer selected from the group comprising a polyvinyl alcohol-containing sheet material suitable for producing the water-soluble sheath

(Meth) acrylic acid-containing (co) polymers, polyacrylamides, oxazoline polymers, polystyrene sulfonates, polyurethanes, polyesters, polyethers, polylactic acid or mixtures of the above polymers may be added. A preferred additional polymer is polylactic acids. 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.

It may be preferred that the film material contains further additives. The film material may include, for example, plasticizers such as dipropylene glycol, ethylene glycol, diethylene glycol,

Propylene glycol, glycerol, sorbitol, mannitol or mixtures thereof. Further

Additives include, for example, release aids, fillers, crosslinking agents, surfactants, antioxidants, UV absorbers, antiblocking agents, detackifiers, or mixtures thereof.

Suitable water-soluble films for use in the water-soluble sheaths of

water-soluble packaging according to the invention are films marketed by 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.

In a preferred embodiment, the composition for cleaning power reinforcement is in solid, in particular in powder form and / or in pre-portioned form and / or is in a water-insoluble, water-soluble or water-dispersible packaging, in particular in a polyvinyl alcohol-containing film.

In a further preferred embodiment, the composition is for

Reinforcing agent in liquid form and / or in pre-portioned form before and / or is in a water-insoluble, water-soluble or water-dispersible packaging, in particular in a polyvinyl alcohol-containing film.

Finally, the invention also relates to a dishwashing process, in particular a machine dishwashing process, in which a cleaning power amplifier according to the invention is used. The subject of the present application is therefore furthermore a process for the purification of dishes in a dishwasher, in which the inventive

Reinigungskraftverstärker during the passage of a dishwasher before the start of the main wash cycle or in the course of the main wash cycle in the interior of a

Dishwasher is metered. The metering or the entry of the agent according to the invention into the interior of the dishwasher can be done manually. Examples

Example 1: Increase of the cleaning performance of a dishwashing detergent

The basic formula used is a three-phase, medium-performance dishwashing tablet having the composition shown in Table 1. This basic formula was

(1) alone (recipe 0);

(2) in combination with 5 g of MGDA granules (active content 78% by weight) and 14 g of Plurafac 220 (= fatty alcohol alkoxylate) (formulation 1);

(3) in combination with 10 g of MGDA granules (active content 78% by weight) and 14 g of Plurafac 220 (formulation 2);

(4) in combination with 10 g of MGDA granules (active content 78% by weight) (formulation 3); and

(5) in combination with 14 g Plurafac 220 (recipe 4)

tested. The test was carried out by means of a standard IKW method in a Miele dishwasher at 50 ° C and a water hardness of 21 ° DH and the cleaning performance of the bleachable soil tea and the persistent soils milk and minced meat considered (evaluation: the higher the value the better the performance). The results are shown in Table 2.

Table 1: Composition of the dishwashing detergent

Phase 1 (61.56 wt.%) Wt.% G / job

Bleach 14.27 2.71

Bleach activator 0.31 0.06

Phosphate 13.84 2.63

Soda 18,16 3,45

HEDP 1, 47 0.28

Acrylate polymer 4.00 0.76

Sulfopolymer 5.79 1, 10

Nonionic surfactants 2.90 0.55

Remains (water, perfume, ad ad 1 1, 70

Dyes, etc.) 61, 56

Phase 2 (24.21 wt.%) Wt.% G / job

Enzymes 1, 53 0.29

Phosphate 16.68 3, 17

Bleach activator 2.37 0.45

Acrylate polymer 1, 01 0, 19

Zn acetate 0.20 0.04

Nonionic surfactants 1, 46 0.28 Remains (water, perfume, ad ad 4,60

Dyes, etc.) 24,21

Phase 3 (14.23 wt.%) Wt.% G / job

Soda 2.37 0.45

Phosphate 10.99 2.09

Nonionic surfactant 0.27 0.05

PEG 4000 0.53 0, 10

Remains (water, perfume, ad ad 2.70

Dyes, etc.) 14,23

TOTAL 100.00 19.00

Table 2: Cleaning performance

The formulations according to the invention 1, 2 and 3 show a significantly better performance on all soils compared to the basic formula. Compared with the use of additional surfactant (recipe 4), the performance of all three recipes for minced meat soils is significantly better and the use of larger amounts of MGDA also has a better effect on tea and milk soiling. The additional use of surfactant in Formulation 2 shows no significant improvement compared to the use of MGDA alone (Formulation 3).

Claims

claims

1. Use of a composition having a pH in the range 7-14, preferably 8.5-12, and containing at least one organic builder, wherein the at least one organic builder in an amount of at least 25 wt.%, In particular at least 30 wt %, preferably at least 35% by weight, more preferably at least 40% by weight, most preferably at least 45% by weight, based on the composition, the absolute amount of the at least one organic builder in the composition is 1 - 25 g / job, preferably at 2-20 g / job, more preferably 4-12 g / job, and the at least one organic builder is an aminocarboxylic acid, which is preferably selected from methylglycine-acetic acid (MGDA) and its salts, glutamine-diacetic acid (GLDA) and its salts, and Ethylenediaminediacetic acid (EDDA) and its salts, to improve the cleaning performance of automatic dishwashing detergent

Washing dishes in an automatic dishwasher.

2. Use according to claim 1, characterized in that the composition

is used together with a machine dishwashing detergent in a normal cleaning cycle for cleaning dirty dishes.

3. Method for cleaning and / or maintaining an automatic dishwashing machine,

characterized in that in a normal cleaning cycle, in addition to an automatic dishwashing detergent, a composition which enhances the detergency of the dishwashing detergent is used, the composition comprising at least one organic builder and having a pH in the range 7-14, preferably 8.5- 12, wherein the at least one organic builder in an amount of at least 25 wt.%, In particular at least 30 wt.%, Preferably at least 35 wt.%, Particularly preferably at least 40 wt.%, Most preferably at least 45 wt.% Based on the composition is contained, the absolute amount of the at least one organic builder in the composition is 1-25 g / job, preferably 2-20 g / job, more preferably 4-12 g / job, and the at least one organic builder is one

Aminocarboxylic acid, which is preferably selected from methylglycine acetic acid (MGDA) and its salts, glutamic diacetic acid (GLDA) and its salts, and

Ethylenediaminediacetic acid (EDDA) and its salts.

4. Combination product, characterized in that the combination product in separate formulations comprises a cleaning power boosting composition and an automatic dishwashing machine dishwashing detergent, wherein the cleaning power boosting composition comprises at least one organic builder and has a pH in the range 7-14, preferably 8, 5-12, wherein the at least one organic builder in an amount of at least 25 wt.%, in particular at least 30% by weight, preferably at least 35% by weight, more preferably at least 40% by weight, most preferably at least 45% by weight, based on the composition, of the absolute amount of the at least one organic builder in the composition 1-25 g / job, preferably 2-20 g / job, more preferably 4-12 g / job, and the at least one organic builder is an aminocarboxylic acid which is preferably selected from methylglycine acetic acid (MGDA) and its salts, glutamine diacetic acid (GLDA) and their salts, and ethylenediaminediacetic acid (EDDA) and their salts.

5. Combination product according to claim 4, characterized in that the automatic dishwashing agent

(a) is in liquid or solid form; and or

(b) in pre-portioned form, preferably in the form of a tablet or a

Pouches, present; and or

(C) is in a water-insoluble, water-soluble or water-dispersible packaging, in particular in a polyvinyl alcohol-containing film.

6. Embodiment according to one of claims 1-5, characterized in that the

Composition for cleaning power reinforcement

(a) is phosphate and / or phosphonate free; and or

(b) is free of bleaching agents.

7. Embodiment according to one of claims 1-6, characterized in that the

Composition for cleaning power reinforcement

(a) is in solid, especially in powder form; and or

(b) is in preportioned form; and or

8. Embodiment according to one of claims 1-6, characterized in that the

Composition for cleaning power reinforcement

(a) is in liquid form; and or

(b) is in preportioned form; and or

9. Embodiment according to one of claims 1-8, characterized in that the

Composition for cleaning power reinforcement at least one further constituent selected from the group consisting of further builders, in particular

Alkali carriers, preferably alkali metal carbonates, more preferably sodium carbonate, other surfactants, in particular anionic surfactants, polymers, enzymes,

Contains corrosion inhibitors, glass corrosion inhibitors, disintegration aids, fragrances and perfume carriers.

The embodiment of any one of claims 1-9, characterized in that the detergency enhancing composition is in pre-portioned form in a water-soluble film, the pre-portioned form having a total weight of 25-40 g. 1. Embodiment according to one of claims 1-10, characterized in that the

Composition for cleaning power amplification is dosed directly into the interior of an automatic dishwasher.