EP3431575A1 - Détergent pour lave-vaisselle comportant un citrate dihydraté et anhydre - Google Patents
Détergent pour lave-vaisselle comportant un citrate dihydraté et anhydre Download PDFInfo
- Publication number
- EP3431575A1 EP3431575A1 EP18182518.3A EP18182518A EP3431575A1 EP 3431575 A1 EP3431575 A1 EP 3431575A1 EP 18182518 A EP18182518 A EP 18182518A EP 3431575 A1 EP3431575 A1 EP 3431575A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- acid
- dishwashing detergent
- dishwashing
- enzyme
- sodium citrate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000004851 dishwashing Methods 0.000 title claims abstract description 78
- 239000003599 detergent Substances 0.000 title claims abstract description 59
- 239000000203 mixture Substances 0.000 title claims abstract description 59
- LRZSAGKIMYFLHY-UHFFFAOYSA-N 2-hydroxypropane-1,2,3-tricarboxylic acid;dihydrate Chemical compound O.O.OC(=O)CC(O)(C(O)=O)CC(O)=O LRZSAGKIMYFLHY-UHFFFAOYSA-N 0.000 title 1
- 102000004190 Enzymes Human genes 0.000 claims abstract description 47
- 108090000790 Enzymes Proteins 0.000 claims abstract description 47
- 239000001509 sodium citrate Substances 0.000 claims abstract description 15
- HRXKRNGNAMMEHJ-UHFFFAOYSA-K trisodium citrate Chemical compound [Na+].[Na+].[Na+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O HRXKRNGNAMMEHJ-UHFFFAOYSA-K 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 claims abstract description 12
- NLJMYIDDQXHKNR-UHFFFAOYSA-K sodium citrate Chemical compound O.O.[Na+].[Na+].[Na+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O NLJMYIDDQXHKNR-UHFFFAOYSA-K 0.000 claims abstract description 12
- 229960000999 sodium citrate dihydrate Drugs 0.000 claims abstract description 12
- -1 perhydrolases Proteins 0.000 claims description 61
- 229940088598 enzyme Drugs 0.000 claims description 42
- 239000003795 chemical substances by application Substances 0.000 claims description 39
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- 239000004365 Protease Substances 0.000 claims description 19
- 239000000126 substance Substances 0.000 claims description 18
- KXDHJXZQYSOELW-UHFFFAOYSA-N Carbamic acid Chemical compound NC(O)=O KXDHJXZQYSOELW-UHFFFAOYSA-N 0.000 claims description 14
- CIEZZGWIJBXOTE-UHFFFAOYSA-N 2-[bis(carboxymethyl)amino]propanoic acid Chemical compound OC(=O)C(C)N(CC(O)=O)CC(O)=O CIEZZGWIJBXOTE-UHFFFAOYSA-N 0.000 claims description 12
- 239000003112 inhibitor Substances 0.000 claims description 11
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- PQHYOGIRXOKOEJ-UHFFFAOYSA-N 2-(1,2-dicarboxyethylamino)butanedioic acid Chemical compound OC(=O)CC(C(O)=O)NC(C(O)=O)CC(O)=O PQHYOGIRXOKOEJ-UHFFFAOYSA-N 0.000 claims description 6
- 229940025131 amylases Drugs 0.000 claims description 6
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- NBZBKCUXIYYUSX-UHFFFAOYSA-N iminodiacetic acid Chemical compound OC(=O)CNCC(O)=O NBZBKCUXIYYUSX-UHFFFAOYSA-N 0.000 claims description 6
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- WDJHALXBUFZDSR-UHFFFAOYSA-N acetoacetic acid Chemical compound CC(=O)CC(O)=O WDJHALXBUFZDSR-UHFFFAOYSA-N 0.000 claims description 3
- 239000004599 antimicrobial Substances 0.000 claims description 3
- IFQUWYZCAGRUJN-UHFFFAOYSA-N ethylenediaminediacetic acid Chemical compound OC(=O)CNCCNCC(O)=O IFQUWYZCAGRUJN-UHFFFAOYSA-N 0.000 claims description 3
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- VKZRWSNIWNFCIQ-WDSKDSINSA-N (2s)-2-[2-[[(1s)-1,2-dicarboxyethyl]amino]ethylamino]butanedioic acid Chemical compound OC(=O)C[C@@H](C(O)=O)NCCN[C@H](C(O)=O)CC(O)=O VKZRWSNIWNFCIQ-WDSKDSINSA-N 0.000 claims 1
- 238000004140 cleaning Methods 0.000 abstract description 20
- 125000004432 carbon atom Chemical group C* 0.000 description 28
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- 239000011734 sodium Substances 0.000 description 25
- 239000002253 acid Substances 0.000 description 24
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- 150000007513 acids Chemical class 0.000 description 17
- 229920001577 copolymer Polymers 0.000 description 17
- 150000003839 salts Chemical class 0.000 description 17
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 16
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- 239000000178 monomer Substances 0.000 description 15
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- 239000011572 manganese Substances 0.000 description 14
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- 150000002191 fatty alcohols Chemical class 0.000 description 13
- 150000003254 radicals Chemical class 0.000 description 12
- 125000000217 alkyl group Chemical group 0.000 description 11
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- 235000011083 sodium citrates Nutrition 0.000 description 10
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- 239000003381 stabilizer Substances 0.000 description 7
- 125000000542 sulfonic acid group Chemical group 0.000 description 7
- ITWBWJFEJCHKSN-UHFFFAOYSA-N 1,4,7-triazonane Chemical compound C1CNCCNCCN1 ITWBWJFEJCHKSN-UHFFFAOYSA-N 0.000 description 6
- KRKNYBCHXYNGOX-UHFFFAOYSA-K Citrate Chemical compound [O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O KRKNYBCHXYNGOX-UHFFFAOYSA-K 0.000 description 6
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 6
- KDYFGRWQOYBRFD-UHFFFAOYSA-N Succinic acid Natural products OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 description 6
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 description 6
- 239000011248 coating agent Substances 0.000 description 6
- 150000002148 esters Chemical class 0.000 description 6
- 238000009472 formulation Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 229910052760 oxygen Inorganic materials 0.000 description 6
- 235000019419 proteases Nutrition 0.000 description 6
- 229910052708 sodium Inorganic materials 0.000 description 6
- 229920002126 Acrylic acid copolymer Polymers 0.000 description 5
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 5
- DBVJJBKOTRCVKF-UHFFFAOYSA-N Etidronic acid Chemical compound OP(=O)(O)C(O)(C)P(O)(O)=O DBVJJBKOTRCVKF-UHFFFAOYSA-N 0.000 description 5
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 5
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 5
- 229910019142 PO4 Inorganic materials 0.000 description 5
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 5
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- 150000001991 dicarboxylic acids Chemical class 0.000 description 5
- 235000014113 dietary fatty acids Nutrition 0.000 description 5
- VTIIJXUACCWYHX-UHFFFAOYSA-L disodium;carboxylatooxy carbonate Chemical compound [Na+].[Na+].[O-]C(=O)OOC([O-])=O VTIIJXUACCWYHX-UHFFFAOYSA-L 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
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- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 4
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- IBDSNZLUHYKHQP-UHFFFAOYSA-N sodium;3-oxidodioxaborirane;tetrahydrate Chemical compound O.O.O.O.[Na+].[O-]B1OO1 IBDSNZLUHYKHQP-UHFFFAOYSA-N 0.000 description 1
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- UIERETOOQGIECD-ONEGZZNKSA-N tiglic acid Chemical compound C\C=C(/C)C(O)=O UIERETOOQGIECD-ONEGZZNKSA-N 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- LDHQCZJRKDOVOX-UHFFFAOYSA-N trans-crotonic acid Natural products CC=CC(O)=O LDHQCZJRKDOVOX-UHFFFAOYSA-N 0.000 description 1
- 150000003918 triazines Chemical class 0.000 description 1
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- 235000015870 tripotassium citrate Nutrition 0.000 description 1
- 229940038773 trisodium citrate Drugs 0.000 description 1
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/20—Organic compounds containing oxygen
- C11D3/2075—Carboxylic acids-salts thereof
- C11D3/2086—Hydroxy carboxylic acids-salts thereof
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
- C11D17/0047—Detergents in the form of bars or tablets
- C11D17/0065—Solid detergents containing builders
- C11D17/0073—Tablets
- C11D17/0078—Multilayered tablets
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
- C11D17/0047—Detergents in the form of bars or tablets
- C11D17/0065—Solid detergents containing builders
- C11D17/0073—Tablets
- C11D17/0091—Dishwashing tablets
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/38—Products with no well-defined composition, e.g. natural products
- C11D3/386—Preparations containing enzymes, e.g. protease or amylase
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/26—Organic compounds containing nitrogen
- C11D3/33—Amino carboxylic acids
Definitions
- the present invention relates to a phosphate-free machine dishwashing detergent which exhibits improved cleaning performance, in particular in the case of enzyme-sensitive soiling and improved hardness, the use of this dishwashing detergent and a machine dishwashing method using this dishwashing detergent.
- Machine dishwashing detergents today have to meet a wide variety of requirements. Among other things, they should be as environmentally friendly and easy to dose and have a good cleaning performance. So the dishes after machine cleaning should not only be completely free of food particles, but also, for example, have no whitish, based on water hardness or other mineral salts stains that come from lack of wetting agent from dried water droplets.
- Modern automatic dishwashing detergents meet these requirements by integrating cleansing, caring, water-softening and clear-rinsing active ingredients and are known to the consumer, for example, as “2in1" or "3in1" dishwashing detergents.
- As essential for the cleaning as for the rinse aid success constituent intended for the private consumer dishwasher automatic dishwashing contain builders. On the one hand, these builders increase the alkalinity of the cleaning liquor, whereby fats and oils are emulsified and saponified with increasing alkalinity, and on the other hand reduce the water hardness of the cleaning liquor by complexing the calcium ions contained in the aqueous liquor. In the past, in particular alkali metal phosphates were used for this purpose.
- Phosphate-free automatic dishwashing detergents which, in addition to a citrate, furthermore contain carbonates, bleaches and enzymes are described, for example, in the European patents EP 662 117 B1 (Henkel KGaA) and EP 692 020 B1 (Henkel KGaA).
- the object of the present application was to provide a phosphate-free automatic dishwashing detergent, which is comparable in terms of its cleaning performance, especially against enzyme-sensitive soiling, as well as with respect to its rinse results with conventional phosphate-containing cleaning agents or even better and while having an improved breaking hardness.
- a first aspect of the present invention therefore relates to a multi-phase phosphate-free dishwashing detergent, in particular automatic dishwashing detergent, which contains at least one enzyme in one phase, wherein the enzyme-containing phase further comprises a mixture of sodium citrate dihydrate and sodium citrate anhydrate in a weight ratio of 1: 5 to 5 : 1 contains.
- a dishwashing agent according to the invention in a machine dishwashing process, in particular the use for improving the cleaning performance in an automatic dishwashing machine.
- Yet another object of the invention is a machine dishwashing process in which a dishwasher detergent according to the invention is used, in particular for the purpose of improving the cleaning performance.
- At least one means 1 or more, i. 1, 2, 3, 4, 5, 6, 7, 8, 9 or more. With respect to an ingredient, the indication refers to the type of ingredient, not the absolute number of molecules.
- at least one surfactant means, for example, at least one type of surfactant, i. that is, one type of surfactant or a mixture of several different surfactants may be meant.
- the term, together with weights, refers to all compounds of the type indicated which are included in the composition / mixture, i. that the composition does not contain any further compounds of this type beyond the stated amount of the corresponding compounds.
- fatty acids or fatty alcohols or their derivatives - unless otherwise stated - representative of branched or unbranched carboxylic acids or alcohols or their derivatives having preferably 6 to 22 carbon atoms.
- oxo alcohols or their derivatives which are obtainable, for example, by the ROELEN's oxo synthesis can also be used correspondingly.
- alkaline earth metals are referred to below as counterions for monovalent anions, this means that the alkaline earth metal is present only in half - as sufficient to charge balance - amount of substance as the anion.
- the dishwashing agents according to the invention are free of phosphates and contain in one phase at least one enzyme and a mixture of sodium citrate dihydrate and sodium citrate anhydrate in a weight ratio of 1: 5 to 5: 1.
- the agents as described herein are automatic dishwashing detergents.
- the dishwashing agents in the enzyme phase as described herein contain a mixture of sodium citrate dihydrate and sodium citrate anhydrate in a weight ratio of 1: 5 to 5: 1.
- the weight ratio is preferably 1: 4 to 4: 1.
- the sodium citrate dihydrate and the sodium citrate anhydrate are contained in the enzyme phase respectively in an amount of 5 to 45% by weight, preferably in an amount of 10 to 30% by weight.
- the agent additionally contains a further builder, preferably at least one aminocarboxylic acid or at least one salt of an aminocarboxylic acid.
- a further builder preferably at least one aminocarboxylic acid or at least one salt of an aminocarboxylic acid.
- compositions according to the invention may comprise at least one, preferably at least two further constituents, preferably selected from the group consisting of surfactants, in particular nonionic surfactants and / or anionic surfactants, further builders, enzymes, thickeners, sequestering agents, electrolytes, corrosion inhibitors, in particular silver protectants, glass corrosion inhibitors, Foam inhibitors, dyes, fragrances, bitter substances, antimicrobial agents and disintegration aids.
- surfactants in particular nonionic surfactants and / or anionic surfactants
- further builders enzymes, thickeners, sequestering agents, electrolytes, corrosion inhibitors, in particular silver protectants, glass corrosion inhibitors, Foam inhibitors, dyes, fragrances, bitter substances, antimicrobial agents and disintegration aids.
- the agents described herein preferably contain at least one nonionic surfactant.
- 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.
- 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.
- surfactants are the polyhydroxy fatty acid amides known as PHFA.
- low-foaming nonionic surfactants are preferably used, in particular alkoxylated, especially ethoxylated, low-foaming nonionic surfactants.
- the automatic dishwashing detergents contain nonionic surfactants from the group of the alkoxylated alcohols.
- a class of useful nonionic surfactants which can be used either as the sole nonionic surfactant or in combination with other nonionic surfactants are accordingly alkoxylated, preferably ethoxylated or ethoxylated and propoxylated fatty acid alkyl esters, preferably having from 1 to 4 carbon atoms in the alkyl chain.
- surfactants come from the groups of ethoxylated primary alcohols and mixtures of these surfactants with structurally complicated surfactants such as polyoxypropylene / polyoxyethylene / polyoxypropylene ((PO / EO / PO) surfactants).
- structurally complicated surfactants such as polyoxypropylene / polyoxyethylene / polyoxypropylene ((PO / EO / PO) surfactants).
- Such (PO / EO / PO) nonionic surfactants are characterized by good foam control.
- nonionic surfactants are those which have alternating ethylene oxide and alkylene oxide units.
- 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.
- nonionic surfactants of the general in which R 1 is a straight-chain or branched, saturated or mono- or polyunsaturated C 6-24 alkyl or alkenyl radical; each group R 2 or R 3 is independently selected from -CH 3 , -CH 2 CH 3 , -CH 2 CH 2 -CH 3 , CH (CH 3 ) 2 and the indices w, x, y, z independently stand for integers from 1 to 6.
- nonionic surfactants having a C 9-15 alkyl group having 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.
- surfactants of the formula R 1 O [CH 2 CH (CH 3 ) O] x [CH 2 CH 2 O] y CH 2 CH (OH) R 2 , in which R 1 is a linear or branched aliphatic hydrocarbon radical with 4 R 2 is a linear or branched hydrocarbon radical having 2 to 26 carbon atoms or mixtures thereof and x is values between 0.5 and 1.5 and y is a value of at least 15.
- the group of these nonionic surfactants includes, for example, the C 2-26 fatty alcohol (PO) 1 - (EO) 15-40 -2-hydroxyalkyl ethers, in particular also the C 8-10 fatty alcohol (PO) 1 - (EO) 22 -2 -hydroxydecylether.
- nonionic surfactants are the end-capped poly (oxyalkylated) nonionic surfactants of the formula R 1 O [CH 2 CH (R 3 ) O] x [CH 2 ] k CH (OH) [CH 2 ] j OR 2 in which R 1 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 are values between 1 and 30, k and j are values between 1 and 12, preferably between 1 and 5.
- each R 3 in the above formula R 1 O [CH 2 CH (R 3 ) O] x [CH 2 ] k CH (OH) [CH 2 ] j OR 2 may be different.
- R 1 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 being particularly preferred.
- R 3 H, -CH 3 or -CH 2 CH 3 are particularly preferred.
- Particularly preferred values for x are in the range from 1 to 20, in particular from 6 to 15.
- each R 3 in the above formula may be different if x ⁇ 2.
- the alkylene oxide unit in the square bracket can be varied.
- the value 3 for x has been selected here by way of example and may well be greater, with the variation width increasing with increasing x values and including, for example, a large number (EO) groups combined with a small number (PO) groups, or vice versa ,
- 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 1 and R 2 has 9 to 14 C atoms, R 3 is H and x assumes values of 6 to 15.
- nonionic surfactants include, for example, the C 4-22 fatty alcohol (EO) 10-80 -2-hydroxyalkyl ethers, in particular also the C 8-12 fatty alcohol (EO) 22 -2-hydroxydecyl ethers and the C 4-22 fatty alcohol (EO) 40-80 -2-hydroxyalkyl ether.
- 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 2 wt.%, Preferably at least 5 wt. %.
- the amounts used per application may be in the range of 0.5-10 g / job, preferably in the range of 1-5 g / job.
- Suitable anionic surfactants in dishwashing detergents are all anionic surfactants. These are characterized by a water-solubilizing, anionic group such as. As a carboxylate, sulfate, sulfonate or phosphate group and a lipophilic alkyl group having about 8 to 30 carbon atoms. In addition, glycol or polyglycol ether groups, ester, ether and amide groups and hydroxyl groups may be present in the molecule. Suitable anionic surfactants are preferably present in the form of the sodium, potassium and ammonium as well as the mono-, di- and trialkanolammonium salts having 2 to 4 C atoms in the alkanol group.
- Preferred anionic surfactants are alkyl sulfates, alkyl polyglycol ether sulfates and ether carboxylic acids having 10 to 18 C atoms in the alkyl group and up to 12 glycol ether groups in the molecule.
- the dishwashing detergents can therefore, in various embodiments, contain at least one surfactant of the formula R 4 -O- (AO) n -SO 3 - X + .
- R 4 is a linear or branched, substituted or unsubstituted alkyl, aryl or alkylaryl radical, preferably a linear, unsubstituted alkyl radical, more preferably a fatty alcohol radical.
- Preferred radicals R 1 are selected from decyl, undecyl, dodecyl, tridecyl, tetradecyl, pentadecyl, hexadecyl, heptadecyl, octadecyl, nonadecyl, eicosyl radicals and mixtures thereof, where the representatives with an even number of carbon atoms Atoms are preferred.
- radicals R 1 are derived from C 12 -C 18 fatty alcohols, for example coconut fatty alcohol, tallow fatty alcohol, lauryl, myristyl, cetyl or stearyl alcohol or C 10 -C 20 oxo alcohols.
- AO represents an ethylene oxide (EO) or propylene oxide (PO) moiety, preferably an ethylene oxide moiety.
- the index n stands for an integer from 1 to 50, preferably from 1 to 20 and especially from 2 to 10. Most preferably, n stands for the numbers 2, 3, 4, 5, 6, 7 or 8.
- X stands for a monovalent cation or the nth part of an n-valent cation, the alkali metal ions are preferred, and Na + or K + including Na, with Na + being extremely preferred.
- Other cations X + may be selected from NH 4 + , 1 ⁇ 2Zn 2+ , 1 ⁇ 2Mg 2+ , 1 ⁇ 2Ca 2+ , 1 ⁇ 2Mn 2+ , and mixtures thereof.
- the agents may additionally or alternatively contain at least one surfactant of the formula R 5 -A-SO 3 - Y + .
- R 5 is a linear or branched, substituted or unsubstituted alkyl, aryl or alkylaryl radical and the grouping -A- for -O- or a chemical bond.
- certain radicals R 5 are preferred.
- R 5 preferably represents a linear, unsubstituted alkyl radical, more preferably a fatty alcohol radical.
- Preferred radicals R 5 are selected from decyl, undecyl, dodecyl, tridecyl, tetradecyl, pentadecyl, hexadecyl, heptadecyl, octadecyl, nonadecyl, eicosyl radicals and mixtures thereof, where the representatives with even number of carbon atoms Atoms are preferred.
- Particularly preferred radicals R 5 are derived from C 12 -C 18 fatty alcohols, for example coconut fatty alcohol, tallow fatty alcohol, lauryl, myristyl, cetyl or stearyl alcohol or C 10 -C 20 oxo alcohols.
- Y stands for a monovalent cation or the n-th part of an n-valent cation, the alkali metal ions being preferred, and Na + or K + being preferred, Na + being extremely preferred.
- Other cations Y + may be selected from NH 4 + , 1 ⁇ 2Zn 2+ , 1 ⁇ 2Mg 2+ , 1 ⁇ 2Ca 2+ , 1 ⁇ 2Mn 2+ , and mixtures thereof.
- R 5 preferably represents a linear or branched unsubstituted alkylaryl radical.
- X is a monovalent cation or the nth part of an n-valent cation, the alkali metal ions being preferred, and Na + or K + being preferred, Na + being extremely preferred.
- Other cations X + may be selected from NH 4 +, 1 ⁇ 2 Zn 2+, 1 ⁇ 2Mg 2+, 1 ⁇ 2Ca 2+, 1 ⁇ 2Mn 2+, and mixtures thereof.
- Such surfactants may be selected from linear or branched alkyl benzene sulfonates.
- cationic and / or amphoteric surfactants such as betaines or quaternary ammonium compounds.
- the agent described herein additionally contains a further builder, preferably at least one aminocarboxylic acid or at least one salt of an aminocarboxylic acid.
- a further builder preferably at least one aminocarboxylic acid or at least one salt of an aminocarboxylic acid.
- aminocarboxylic acid refers to an amino acid or a derivative of an amino acid.
- Particularly preferred representatives of the class of aminocarboxylic acids are methylglycinediacetic acid (MGDA) or its salts, and glutamic diacetic acid (GLDA) or its salts or ethylenediamine diacetic acid or its salts (EDDS).
- IDS iminodisuccinic acid
- IDA iminodiacetic acid
- the salts of an aminocarboxylic acid are the alkali and alkaline earth metal salts, preferably the alkali metal salts, in particular the sodium and potassium salts of an aminocarboxylic acid.
- the further aminocarboxylic acid preferably contained in the compositions as described herein is therefore selected from the group consisting of methylglycinediacetic acid (MGDA), glutamic diacetic acid (GLDA), ethylenediamine diacetic acid (EDDS), iminodisuccinic acid (IDS) and iminodiacetic acid (IDA). Particularly preferred is MGDA.
- compositions according to the invention contain the at least one aminocarboxylic acid or the at least one salt of an aminocarboxylic acid, preferably in amounts of from 0.1 to 30% by weight, preferably from 1 to 25% by weight and in particular from 5 to 20% by weight.
- Further builders which may be present in the dishwashing detergent are in particular silicates, aluminum silicates, carbonates and organic di- and polycarboxylic acids or salts thereof. Of course, mixtures of these substances can also be used.
- crystalline layer-form silicates of the general formula NaMSi x O 2x + 1 .yH 2 O in which M is sodium or hydrogen, x is a number from 1.9 to 22, preferably from 1.9 to 4, with particularly preferred Values for x are 2, 3 or 4, and y is a number from 0 to 33, preferably from 0 to 20.
- the crystalline layer-form silicates of the formula NaMSi x O 2x + 1 .yH 2 O are for example sold by Clariant GmbH (Germany) under the trade name Na-SKS.
- silicates Na-SKS-1 (Na 2 Si 22 O 45 .xH 2 O, Kenyaite), Na-SKS-2 (Na 2 Si 14 O 29 .xH 2 O, magadiite), Na-SKS-3 (Na 2 Si 8 O 17 ⁇ x H 2 O) or Na-SKS-4 (Na 2 Si 4 O 9 ⁇ xH 2 O, makatite).
- Particularly suitable for the purposes of the present invention are crystalline phyllosilicates of the formula NaMSi x O 2x + 1 .yH 2 O, in which x is 2.
- both ⁇ - and ⁇ -sodium are Na 2 Si 2 O 5 .yH 2 O and furthermore especially Na-SKS-5 ( ⁇ -Na 2 Si 2 O 5 ), Na-SKS-7 ( ⁇ -Na 2 Si 2 O 5, natrosilite), Na-SKS-9 (NaHSi 2 O 5 ⁇ H 2 O), Na-SKS-10 (NaHSi 2 O 5 ⁇ 3H 2 O, kanemite), Na-SKS-11 (t- Na 2 Si 2 O 5 ) and Na-SKS-13 (NaHSi 2 O 5 ), but especially Na-SKS-6 ( ⁇ -Na 2 Si 2 O 5 ).
- Machine dishwashing agents typically contain a weight fraction of the crystalline layered silicate of the formula NaMSi x O 2x + 1 ⁇ yH 2 O of from 0.1 to 20% by weight, preferably from 0.2 to 15% by weight and in particular of 0.4 to 10 wt .-%, each based on the total weight of these agents.
- amorphous sodium silicates with a Na 2 O: SiO 2 modulus of from 1: 2 to 1: 3.3, preferably from 1: 2 to 1: 2.8 and in particular from 1: 2 to 1: 2.6, which preferably delayed release and have secondary washing properties.
- the dissolution delay compared with conventional amorphous sodium silicates may have been caused in various ways, for example by surface treatment, compounding, compaction / densification or by overdrying.
- amorphous is understood to mean that the silicates do not yield sharp X-ray reflections in X-ray diffraction experiments, as they are typical for crystalline substances, but at most one or cause several maxima of the scattered X-radiation, which have a width of several degrees of the diffraction angle.
- the dishwashing detergents can in particular also contain phosphonates as further builder.
- the phosphonate compound used is preferably a hydroxyalkane and / or aminoalkane phosphonate.
- HEDP 1-hydroxyethane-1,1-diphosphonate
- Preferred aminoalkanephosphonates are ethylenediamine tetramethylenephosphonate (EDTMP), diethylenetriaminepentamethylenephosphonate (DTPMP) and their higher homologs.
- Phosphonates are contained in the compositions preferably in amounts of 0.1 to 10 wt .-%, in particular in amounts of 0.5 to 8 wt .-%, each based on the total weight of the dishwashing detergent.
- alkali carriers are, for example, alkali metal hydroxides, alkali metal carbonates, alkali metal hydrogencarbonates, alkali metal sesquicarbonates, the cited alkali metal silicates, alkali metal silicates, and mixtures of the abovementioned substances, it being possible to use the alkali metal carbonates, in particular sodium carbonate, sodium bicarbonate or sodium sesquicarbonate, for the purposes of this invention.
- the optional alkali metal hydroxides are preferably only in small amounts, preferably in amounts below 10 wt .-%, preferably below 6 wt .-%, more preferably below 4 wt .-% and in particular below 2 wt .-%, in each case based on the total weight of the automatic dishwashing detergent used.
- Particularly preferred are agents which, based on their total weight, contain less than 0.5% by weight and in particular no alkali metal hydroxides.
- organic builders are, in particular, polycarboxylates / polycarboxylic acids, polymeric polycarboxylates, aspartic acid, polyacetals, dextrins, further organic cobuilders and the phosphonates already mentioned above as builders.
- Particularly useful organic builder substances are, for example, the polycarboxylic acids (polycarboxylates) which can be used in the form of the free acid and / or their sodium salts, polycarboxylic acids meaning those carboxylic acids which have more than one, in particular two to eight, acid functions, preferably two to six, in particular two, carry three, four or five acid functions throughout the molecule.
- Preferred polycarboxylic acids are thus dicarboxylic acids, tricarboxylic acids, tetracarboxylic acids and pentacarboxylic acids, in particular di-, tri- and tetracarboxylic acids.
- the polycarboxylic acids may carry further functional groups, such as hydroxyl or amino groups.
- citric acid these are, for example, adipic acid, succinic acid, glutaric acid, maleic acid, fumaric acid, sugar acids (preferably aldaric acids, for example galactaric acid and glucaric acid), nitrilotriacetic acid (NTA), if such use is not objectionable for ecological reasons, and mixtures thereof.
- the abovementioned aminocarboxylic acids also belong to this group.
- the free acids also typically have the property of an acidifying component and thus also serve to set a lower and milder pH of the automatic dishwashing detergents.
- succinic acid, glutaric acid, adipic acid, and any mixtures of these may be mentioned here.
- the dishwashing compositions of the invention may further comprise a sulfopolymer.
- the proportion by weight of the sulfopolymer in the total weight of the dishwashing agent according to the invention is preferably from 0.1 to 20 wt .-%, in particular from 0.5 to 18 wt .-%, particularly preferably 1.0 to 15 wt .-%, in particular from 4 to 14 wt .-%, especially from 6 to 12 wt .-%.
- the sulfopolymer is usually used in the form of an aqueous solution, the aqueous solutions typically containing 20 to 70 wt .-%, in particular 30 to 50 wt .-%, preferably about 35 to 40 wt .-% sulfopolymers.
- the sulfopolymer used is preferably a copolymeric polysulfonate, preferably a hydrophobically modified copolymeric polysulfonate.
- copolymers may have two, three, four or more different monomer units.
- Preferred copolymeric polysulfonates contain not only sulfonic acid group-containing monomer (s) but also at least one monomer selected from the group consisting of unsaturated carboxylic acids.
- unsaturated carboxylic acids are acrylic acid, methacrylic acid, ethacrylic acid, ⁇ -chloroacrylic acid, ⁇ -cyanoacrylic acid, crotonic acid, ⁇ -phenyl-acrylic acid, maleic acid, maleic anhydride, fumaric acid, itaconic acid, citraconic acid, methylenemalonic acid, sorbic acid, cinnamic acid or mixtures thereof. It goes without saying that it is also possible to use the unsaturated dicarboxylic acids.
- Particularly preferred monomers containing sulfonic acid groups are 1-acrylamido-1-propanesulfonic acid, 2-acrylamido-2-propanesulfonic acid, 2-acrylamido-2-methyl-1-propanesulfonic acid, 2-methacrylamido-2-methyl-1-propanesulfonic acid, 3 Methacrylamido-2-hydroxypropanesulfonic acid, allylsulfonic acid, methallylsulfonic acid, allyloxybenzenesulfonic acid, methallyloxybenzenesulfonic acid, 2-hydroxy-3- (2-propenyloxy) propanesulfonic acid, 2-methyl-2-propene-1-sulfonic acid, styrenesulfonic acid, vinylsulfonic acid, 3-sulfopropyl acrylate, 3-sulfopropyl methacrylate , Sulfomethacrylamide, sulfomethylmethacrylamide and mixtures of said acids or their water-soluble
- the sulfonic acid groups may be wholly or partially in neutralized form, i. the acidic acid of the sulfonic acid group in some or all sulfonic acid groups can be exchanged for metal ions, preferably alkali metal ions and in particular for sodium ions.
- metal ions preferably alkali metal ions and in particular for sodium ions.
- partially or fully neutralized sulfonic acid-containing copolymers is preferred according to the invention.
- the monomer distribution of the copolymers preferably used in the case of copolymers containing only monomers containing carboxylic acid groups and monomers containing sulfonic acid groups is preferably from 5 to 95% by weight, more preferably the proportion of the sulfonic acid group-containing monomer is from 50 to 90% by weight. and the proportion of the carboxylic acid group-containing monomer 10 to 50 wt .-%, the monomers are hereby preferably selected from the aforementioned.
- the molecular weight of the sulfo copolymers preferably used can be varied in order to adapt the properties of the polymers to the desired end use.
- Preferred dishwashing detergents are characterized in that the copolymers have molar masses of from 2000 to 200,000 gmol -1 , preferably from 4000 to 25,000 gmol -1 and in particular from 5000 to 15,000 gmol -1 .
- the dishwashing agents may further contain other polymers.
- Suitable polymers include, in particular, the cleaning-active polymers, for example the rinse-aid polymers and / or polymers which act as softeners.
- Preferred polymers which can be used are from the group of the alkylacrylamide / acrylic acid copolymers, the alkylacrylamide / methacrylic acid copolymers, the alkylacrylamide / methylmethacrylic acid copolymers, the alkylacrylamide / acrylic acid / alkylaminoalkyl (meth) acrylic acid copolymers, the alkylacrylamide / methacrylic acid / alkylaminoalkyl (meth) acrylic acid copolymers, the alkylacrylamide / methylmethacrylic acid / alkylaminoalkyl (meth) acrylic acid copolymers, the alkylacrylamide / alkymethacrylate / alkylaminoethylmethacrylate / alkylmethacrylate copolymers and also the copolymers of unsaturated carboxylic acids, cationically derivatized unsaturated carboxylic acids and optionally further ionic or nonionogenic monomers
- acrylamidoalkyltrialkylammonium chloride / acrylic acid copolymers and their alkali metal and ammonium salts come from the group of acrylamidoalkyltrialkylammonium chloride / acrylic acid copolymers and their alkali metal and ammonium salts, the acrylamidoalkyltrialkylammonium chloride / methacrylic acid copolymers and their alkali metal and ammonium salts and the methacroylethylbetaine / methacrylate copolymers.
- Useful cationic polymers originate from the groups of the quaternized cellulose derivatives, the polysiloxanes with quaternary groups, the cationic guar derivatives, the polymeric dimethyldiallylammonium salts and their copolymers with acrylic acid and methacrylic acid and their esters and amides, the copolymers of vinylpyrrolidone with quaternized derivatives of dialkylaminoacrylate and methacrylates, the vinylpyrrolidone-methoimidazolinium chloride copolymers, the quaternized polyvinyl alcohols or the polymers listed under the INCI names Polyquaternium 2, Polyquaternium 17, Polyquaternium 18 and Polyquaternium 27.
- the agents of the present invention contain at least one enzyme preparation or enzyme composition containing one or more enzymes.
- Suitable enzymes include, but are not limited to, proteases, amylases, lipases, hemicellulases, cellulases, ⁇ -glucanases, perhydrolases or oxidoreductases, and preferably mixtures thereof. These enzymes are basically of natural origin; Based on the natural molecules, improved variants are available for use in dishwashing detergents, which are preferably used accordingly.
- the agents contain enzymes preferably in total amounts of 1 ⁇ 10 -6 to 5 wt .-% based on active protein.
- the protein concentration can be determined by known methods, for example the BCA method or the biuret method.
- proteases are among the most technically important enzymes of all. They cause the degradation of protein-containing stains on the items to be cleaned.
- proteases of the subtilisin type (subtilases, subtilopeptidases, EC 3.4.21.62) are particularly important, which are due to the catalytically active amino acids serine proteases. They act as nonspecific endopeptidases and hydrolyze any acid amide linkages that are internal to peptides or proteins. Their pH optimum is usually in the clearly alkaline range.
- Subtilases are naturally produced by microorganisms. Of these, in particular, the subtilisins formed and secreted by Bacillus species are to be mentioned as the most important group within the subtilases.
- subtilisin type proteases preferably used in washing and dishwashing detergents are the subtilisins BPN 'and Carlsberg, the protease PB92, the subtilisins 147 and 309, the protease from Bacillus lentus, in particular from Bacillus lentus DSM 5483, subtilisin DY and the the subtilases, but not the subtilisins in the narrower sense attributable enzyme thermitase, proteinase K and the proteases TW3 and TW7, as well as variants of said proteases, which have a relation to the parent protease modified amino acid sequence.
- Proteases are selectively or randomly modified by methods known from the prior art and thus optimized, for example, for use in detergents and dishwashing detergents. These include point mutagenesis, deletion or insertion mutagenesis or fusion with other proteins or protein parts. Thus, correspondingly optimized variants are known for most proteases known from the prior art.
- amylases examples include the ⁇ -amylases from Bacillus licheniformis, from B. amyloliquefaciens, from B. stearothermophilus, from Aspergillus niger and A. oryzae as well as the further developments of the aforementioned amylases which are improved for use in dishwashing detergents. Furthermore, for this purpose, the ⁇ -amylase from Bacillus sp. A 7-7 (DSM 12368) and the cyclodextrin glucanotransferase (CGTase) from B. agaradherens (DSM 9948).
- lipases or cutinases in particular because of their triglyceride-cleaving activities, but also in order to generate in situ peracids from suitable precursors.
- lipases include, for example, the lipases originally obtainable from Humicola lanuginosa (Thermomyces lanuginosus) or further developed, in particular those with the amino acid exchange D96L.
- Oxidoreductases for example oxidases, oxygenases, catalases, peroxidases, such as halo, chloro, bromo, lignin, glucose or manganese peroxidases, dioxygenases or laccases (phenol oxidases, polyphenol oxidases) can be used to increase the bleaching effect.
- peroxidases such as halo, chloro, bromo, lignin, glucose or manganese peroxidases, dioxygenases or laccases
- phenol oxidases, polyphenol oxidases can be used to increase the bleaching effect.
- organic, particularly preferably aromatic, compounds which interact with the enzymes in order to enhance the activity of the relevant oxidoreductases (enhancers) or to ensure the flow of electrons (mediators) at greatly varying redox potentials between the oxidizing enzymes and the soils.
- An enzyme can be particularly protected during storage against damage such as inactivation, denaturation or disintegration such as by physical influences, oxidation or proteolytic cleavage.
- damage such as inactivation, denaturation or disintegration such as by physical influences, oxidation or proteolytic cleavage.
- inhibition of proteolysis is particularly preferred, especially if the agents also contain proteases.
- Dishwashing agents may contain stabilizers for this purpose; the provision of such means constitutes a preferred embodiment of the present invention.
- Cleaning-active proteases and amylases are generally not provided in the form of the pure protein but rather in the form of stabilized, storage and transportable preparations.
- Such prefabricated preparations include, for example, the solid preparations obtained by granulation, extrusion or lyophilization or, especially in the case of liquid or gel-form detergents, solutions of the enzymes, advantageously as concentrated as possible, low in water and / or added with stabilizers or further auxiliaries.
- the enzymes may be encapsulated for both the solid and liquid dosage forms, for example by spray-drying or extruding the enzyme solution together with a preferably natural polymer or in the form of capsules, for example those in which the enzymes are entrapped as in a solidified gel or in those of the core-shell type, in which an enzyme-containing core is coated with a water, air and / or chemical impermeable protective layer.
- further active ingredients for example stabilizers, emulsifiers, pigments, bleaches or dyes, may additionally be applied.
- Such capsules are applied by methods known per se, for example by shaking or rolling granulation or in fluid-bed processes.
- such granules for example by applying polymeric film-forming agent, low in dust and storage stable due to the coating.
- the enzyme protein forms only a fraction of the total weight of conventional enzyme preparations.
- preferred protease and amylase preparations contain between 0.1 and 40 wt .-%, preferably between 0.2 and 30 wt .-%, particularly preferably between 0.4 and 20 wt .-% and in particular between 0.8 and 10% by weight of the enzyme protein.
- dishwashing detergents which, based in each case on their total weight, contain 0.1 to 12% by weight, preferably 0.2 to 10% by weight and in particular 0.5 to 8% by weight, of enzyme preparations.
- compositions described herein may also include enzyme stabilizers.
- stabilizers are reversible protease inhibitors.
- Benzamidine hydrochloride, borax, boric acids, boronic acids or their salts or esters are frequently used for this purpose, including, in particular, derivatives with aromatic groups, for example ortho, meta or para-substituted phenylboronic acids, in particular 4-formylphenylboronic acid, or the salts or Esters of the compounds mentioned.
- peptide aldehydes that is oligopeptides with a reduced C-terminus, especially those of 2 to 50 monomers are used for this purpose.
- peptidic reversible protease inhibitors include ovomucoid and leupeptin.
- specific, reversible peptide inhibitors for the protease subtilisin and fusion proteins from proteases and specific peptide inhibitors are suitable.
- enzyme stabilizers are amino alcohols such as mono-, di-, triethanol- and -propanolamine and mixtures thereof, aliphatic carboxylic acids up to C 12 , such as succinic acid, other dicarboxylic acids or salts of said acids. End-capped fatty acid amide alkoxylates are also suitable for this purpose. Other enzyme stabilizers are known to those skilled in the art.
- Machine dishwashing detergents according to the invention may contain a bleaching agent as further constituent, with oxygen bleaches being preferred.
- a bleaching agent as further constituent, with oxygen bleaches being preferred.
- sodium percarbonate, sodium perborate tetrahydrate and sodium perborate monohydrate are of particular importance.
- Other useful bleaching agents are, for example, peroxypyrophosphates, citrate perhydrates and H 2 O 2 -forming peracidic salts or peracids, such as perbenzoates, peroxophthalates, diperazelaic acid, phthaloiminoperacid or diperdodecanedioic acid.
- bleaching agents from the group of organic bleaching agents can also be used.
- Typical organic bleaching agents are the diacyl peroxides, e.g. Dibenzoyl.
- Other typical organic bleaches are the peroxyacids, examples of which include the alkyl peroxyacids and the aryl peroxyacids. It is also possible to use all other inorganic or organic peroxy bleaches known to the person skilled in the art.
- the percarbonates and in particular sodium percarbonate are particularly preferred.
- Preferred automatic dishwashing agents according to the invention are characterized in that they contain an oxygen bleaching agent, preferably sodium percarbonate, more preferably a coated sodium percarbonate.
- the proportion by weight of the bleaching agent, based on the total weight of the washing or cleaning agent, in preferred embodiments is between 1 and 35% by weight, preferably between 2.5 and 30% by weight, particularly preferably between 3.5 and 20% by weight. % and in particular between 5 and 15 wt .-%.
- the automatic dishwashing agents additionally contain at least one bleach activator.
- bleach activators it is possible to use compounds which, under perhydrolysis conditions, give aliphatic peroxycarboxylic acids having preferably 1 to 10 C atoms, in particular 2 to 4 C atoms, and / or optionally substituted perbenzoic acid.
- polyacylated alkylenediamines in particular tetraacetylethylenediamine (TAED), acylated triazine derivatives, in particular 1,5-diacetyl-2,4-dioxohexahydro-1,3,5-triazine (DADHT), are acylated Glycolurils, in particular tetraacetylglycoluril (TAGU), N-acylimides, in particular N-nonanoylsuccinimide (NOSI), acylated phenolsulfonates, in particular n-nonanoyl or isononanoyloxybenzenesulfonate (n- or iso-NOBS) are particularly preferably used.
- TAED especially in combination with a percarbonate bleach, preferably sodium percarbonate, is most preferred.
- bleach activators are preferably used in amounts of up to 10% by weight, in particular from 0.1% by weight to 8% by weight, especially from 2 to 8% by weight and more preferably from 2 to 6% by weight, based in each case on the total weight of the funds used.
- the automatic dishwasher detergents according to the invention preferably contain at least one bleach catalyst.
- bleach-enhancing transition metal salts or transition metal complexes such as, for example, Mn, Fe, Co, Ru or Mo saline complexes or carbonyl complexes.
- Mn, Fe, Co, Ru, Mo, Ti, V and Cu complexes with N-containing Tripod ligands and Co, Fe, Cu and Ru ammine complexes are useful as bleach catalysts.
- complexes of manganese in the oxidation state II, III, IV or IV which preferably contain one or more macrocyclic ligands with the donor functions N, NR, PR, O and / or S.
- ligands are used which have nitrogen donor functions.
- bleach catalyst (s) in the compositions of the invention, which as macromolecular ligands 1,4,7-trimethyl-1,4,7-triazacyclononan (Me-TACN), 1,4,7-triazacyclononane (TACN ), 1,5,9-trimethyl-1,5,9-triazacyclododecane (Me-TACD), 2-methyl-1,4,7-trimethyl-1,4,7-triazacyclononane (Me / Me-TACN) and or 2-methyl-1,4,7-triazacyclononane (Me / TACN).
- Me-TACN 1,4,7-trimethyl-1,4,7-triazacyclononan
- TACN 1,4,7-triazacyclononane
- TACD 1,5,9-trimethyl-1,5,9-triazacyclododecane
- Me-TACD 2-methyl-1,4,7-trimethyl-1,4,7-triazacyclononane
- 2-methyl-1,4,7-triazacyclononane
- Machine dishwashing detergent characterized in that it further comprises a bleach catalyst selected from the group of bleach-enhancing transition metal salts and transition metal complexes, preferably from the group of complexes of manganese with 1,4,7-trimethyl-1,4,7-triazacyclononane (Me 3 -TACN ) or 1,2,4,7-tetramethyl-1,4,7-triazacyclononane (Me 4 -TACN), are preferred according to the invention, since in particular the cleaning result can be significantly improved by the aforementioned bleach catalysts.
- a bleach catalyst selected from the group of bleach-enhancing transition metal salts and transition metal complexes, preferably from the group of complexes of manganese with 1,4,7-trimethyl-1,4,7-triazacyclononane (Me 3 -TACN ) or 1,2,4,7-tetramethyl-1,4,7-triazacyclononane (Me 4 -TACN), are preferred according to the invention, since in particular the cleaning result can be significantly improved by the aforementioned
- the aforementioned bleach-enhancing transition metal complexes are used in customary amounts, preferably in an amount of up to 5% by weight, in particular of 0.0025% by weight to 1% by weight and more preferably of 0 , 01 wt .-% to 0.30 wt .-%, each based on the total weight of the bleach catalyst-containing agents used. In special cases, however, more bleach catalyst can be used.
- the pH of the dishwashing detergent can be adjusted by means of customary pH regulators, the pH value being chosen as a function of the desired intended use.
- the pH is in a range of 5.5 to 10.5, preferably 5.5 to 9.5, more preferably greater than 7, even more preferably greater than 7.5 and in particular greater than 8, 5.
- a dishwasher detergent for example a tablet
- a pH greater than 10 and the rinse liquor receives in a preferred embodiment when using the dishwashing a pH value between 9 and 10, for example 9.5.
- the pH adjusting agents are acids and / or alkalis, preferably alkalis.
- Suitable acids are in particular organic acids such as acetic acid, citric acid, glycolic acid, lactic acid, succinic acid, adipic acid, malic acid, tartaric acid and gluconic acid or amidosulfonic acid.
- mineral acids hydrochloric acid, sulfuric acid and nitric acid or mixtures thereof.
- Suitable bases are selected from the group of alkali and alkaline earth metal hydroxides and carbonates, in particular the alkali metal hydroxides, of which potassium hydroxide and especially sodium hydroxide is preferred.
- volatile alkali for example in the form of ammonia and / or alkanolamines, which may contain up to 9 carbon atoms in the molecule.
- alkanolamine here is preferably selected from the group consisting of mono-, di-, triethanol- and -propanolamine and mixtures thereof.
- the composition according to the invention may also contain one or more buffer substances (INCI Buffering Agents), usually in amounts of 0.001 to 5 wt .-%. Preference is given to buffer substances which are at the same time complexing agents or even chelating agents (chelating agents, INCI chelating agents).
- buffer substances are the citric acid or the citrates, in particular the sodium and potassium citrates, for example trisodium citrate.2H 2 O and tripotassium citrate H 2 O.
- Glass corrosion inhibitors prevent the occurrence of haze, streaks and scratches, but also iridescence of the glass surface of machine-cleaned glasses.
- Preferred glass corrosion inhibitors come from the group of magnesium and zinc salts and magnesium and zinc complexes.
- the content of zinc salt in dishwashing detergents is preferably between 0.1 and 5 wt.%, Preferably between 0.2 and 4 wt.% And in particular between 0.4 and 3 wt.
- the content of zinc in oxidized form (calculated as Zn 2+ ) is between 0.01 and 1% by weight, preferably between 0.02 and 0.5% by weight and in particular between 0.04 and 0.2% by weight. -%, in each case based on the total weight of the glass corrosion inhibitor-containing agent.
- perfume oils or perfumes within the scope of the present invention, individual fragrance compounds, e.g. the synthetic products of the ester, ether, aldehyde, ketone, alcohol and hydrocarbon type are used. Preferably, however, mixtures of different fragrances are used, which together produce an attractive fragrance.
- 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.
- preservatives may be included in the compositions. Suitable examples are preservatives from the groups of alcohols, aldehydes, antimicrobial acids and / or their salts, carboxylic esters, acid amides, phenols, phenol derivatives, diphenyls, diphenylalkanes, urea derivatives, oxygen, nitrogen acetals and formals, benzamidines, isothiazoles and their derivatives such as isothiazolines and isothiazolinones, phthalimide derivatives, pyridine derivatives, antimicrobial surface-active compounds, guanidines, antimicrobial amphoteric Compounds, quinolines, 1,2-dibromo-2,4-dicyanobutane, iodo-2-propynyl-butyl-carbamate, iodine, iodophores and peroxides.
- Preferred antimicrobial agents are preferably selected from the group comprising ethanol, n-propanol, i-propanol, 1,3-butanediol, phenoxyethanol, 1,2-propylene glycol, glycerol, undecylenic acid, citric acid, lactic acid, benzoic acid, salicylic acid, thymol, 2 Benzyl 4-chlorophenol, 2,2'-methylenebis (6-bromo-4-chlorophenol), 2,4,4'-trichloro-2'-hydroxydiphenyl ether, N- (4-chlorophenyl) -N- ( 3,4-dichlorophenyl) urea, N, N '- (1,10-decanediyldi-1-pyridinyl-4-ylidene) bis (1-octanamine) dihydrochloride, N, N'-bis (4- Chlorophenyl) -3,12-diimino-2,4,11,13
- particularly preferred preservatives are selected from the group comprising salicylic acid, quaternary surfactants, in particular benzalkonium chloride and isothiazoles and their derivatives such as isothiazolines and isothiazolinones.
- the formulation of automatic dishwashing agents described herein can be carried out in different ways.
- the agents may be in solid or liquid form as well as in a combination of solid and liquid forms. Powder, granules, extrudates, compacts, in particular tablets, are particularly suitable as firm supply forms.
- the liquid supply forms based on water and / or organic solvents may be thickened, in the form of gels.
- the agents can be formulated in the form of single-phase or multi-phase products. The individual phases of multiphase agents may have the same or different states of matter.
- the dishwashing detergents can be present as shaped bodies.
- disintegration aids so-called tablet disintegrants
- tablet disintegrants or disintegrants are meant excipients which ensure the rapid disintegration of tablets in water or other media and for the rapid release of the active ingredients.
- Desintegration aids may preferably be used in amounts of from 0.5 to 10% by weight, preferably from 3 to 7% by weight and in particular from 4 to 6% by weight, based in each case on the total weight of the disintegration assistant-containing agent.
- the automatic dishwashing agents described herein are preferably prefabricated into dosage units. These metering units preferably comprise the amount of cleaning-active substances necessary for a cleaning cycle. Preferred dosage units have a Weight between 12 and 30 g, preferably between 14 and 26 g and in particular between 16 and 22 g.
- the volume of the aforementioned metering units and their spatial form are selected with particular preference so that a metering of the prefabricated units is ensured via the metering chamber of a dishwasher.
- the volume of the dosing unit is therefore preferably between 10 and 35 ml, preferably between 12 and 30 ml.
- the automatic dishwashing agents in particular the prefabricated metering units, may in a preferred embodiment have a water-soluble coating.
- This is preferably formed from a water-soluble film material which is 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.
- the water soluble package may have one or more chambers.
- the agent may be contained in one or more chambers, if any, of the water soluble envelope.
- the amount of agent preferably corresponds to the full or half dose needed for a rinse.
- the water-soluble coating contains polyvinyl alcohol or a 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 is in the range of 10,000 to 1,000,000 gmol -1 , preferably 20,000 to 500,000 gmol -1 , more preferably 30,000 to 100,000 gmol -1 and especially from 40,000 to 80,000 gmol -1 .
- polyvinyl alcohol is usually carried out by hydrolysis of polyvinyl acetate, since the direct synthesis route is not possible.
- 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%.
- a polymer selected from the group consisting of (meth) acrylic acid-containing (co) polymers, polyacrylamides, oxazoline polymers, polystyrenesulfonates, polyurethanes, polyesters, polyethers, polylactic acid, or mixtures of the above may be additionally used in a polyvinyl alcohol-containing film material suitable for producing the water-soluble coating Be added polymers.
- 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.
- 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.
- the film material contains further additives.
- the film material may contain, 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, anti-sticking agents or mixtures thereof.
- Suitable water-soluble films for use in the water-soluble 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 dishwashing agent according to the invention preferably obeys the following frame formulation: Table 1: Phosphate-free, solid dishwashing detergent formulation (Tab) raw material Amount (wt%) Na citrate (dihydrate / anhydrate) 15.00 to 20.00 Phosphonate (eg HEDP) 2.50 to 7.50 MGDA / GLDA 0.00 to 25.00 sodium disilicate 5.00 to 35.00 soda 12.50 to 25.00 Na Percarbonate 10.00 to 15.00 bleach catalyst 0.02-0.50 TAED 1.00 to 5.00 nonionic surfactant 1.50 to 10.00 polycarboxylate 3.00 to 10.00 Cationic copolymer 0.25-1.5 PVP (cross-linked) 0.00 to 1.50 protease 1.00 to 5.00 amylase 0.30 to 3.00 Benzotriazole (silver protection) 0.00 to 0.50 Perfume 0.05-0.2 dye 0.00-1.00 Zn acetate anhydrous 0.00 to 0.30 Na sulfate 0.00 to 25.00 water 0.00 to 2.50
- the cleaning performance was determined in Miele appliances in the 45 ° program (water hardness: 21 ° dH). On the one hand, freshly prepared dishwasher tablets were used, on the other hand tablets which had been stored at 40 ° C. for four weeks. After rinsing, the dishes were visually peeled and rated on a scale of 1 to 10 with higher values for better cleaning performance. The results are shown in the following table: Tea (Assam) egg yolk minced meat fresh After storage fresh After storage fresh After storage E1 5.6 3.4 6.0 6.2 8.3 9.1 V1 4.7 2.6 5.6 5.5 8.4 9.3 V2 4.9 2.6 5.7 5.3 8.8 8.3
- the tablets according to the invention which contained both citrate qualities in the enzyme phase, have an improved cleaning performance on Assam tea compared with the comparison formulations, which each contained only one of the two citrate qualities. This applies to both the freshly prepared and the stored tabs. After storage, there is also an improvement in enzyme-sensitive soiling (yolk, minced meat).
- the hardness of the dishwashing detergent abs prepared according to the above recipes was measured by means of a Schleuniger apparatus. In this case, pressure is applied from both sides of the tablet until the tablet breaks; the applied force is measured in N. It is desirable to have a stable breaking hardness, which at the same time allows good solubility. Too hard tablets do not dissolve sufficiently quickly, so they are not useful in short programs, as their active ingredients are released only delayed. The results of a triplicate determination are shown in the following table: hardness E1 386 N V1 373 N V2 overload
- Overload means that the maximum power of the device (400N) is insufficient to crush the tablet.
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Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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PL18182518T PL3431575T3 (pl) | 2017-07-21 | 2018-07-09 | Środek do mycia naczyń zawierający dihydrat cytrynianu i cytrynian bezwodny |
Applications Claiming Priority (1)
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DE102017212561.6A DE102017212561A1 (de) | 2017-07-21 | 2017-07-21 | Geschirrspülmittel enthaltend Citratdihydrat und -anhydrat |
Publications (2)
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EP3431575A1 true EP3431575A1 (fr) | 2019-01-23 |
EP3431575B1 EP3431575B1 (fr) | 2020-01-08 |
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EP18182518.3A Active EP3431575B1 (fr) | 2017-07-21 | 2018-07-09 | Détergent pour lave-vaisselle comportant un citrate dihydraté et anhydre |
Country Status (4)
Country | Link |
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EP (1) | EP3431575B1 (fr) |
DE (1) | DE102017212561A1 (fr) |
ES (1) | ES2777832T3 (fr) |
PL (1) | PL3431575T3 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP4008764A1 (fr) * | 2020-12-01 | 2022-06-08 | Henkel AG & Co. KGaA | Nettoyage amélioré au moyen du carbonate d'hydrogène dans le détergent de lavage en machine |
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DE102022206583A1 (de) | 2022-06-29 | 2024-01-04 | Henkel Ag & Co. Kgaa | Reinigungsmittel |
Citations (5)
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DE4232170A1 (de) * | 1992-09-25 | 1994-03-31 | Henkel Kgaa | Schwachalkalische Geschirreinigungsmittel |
EP0692020B1 (fr) | 1993-04-01 | 1997-11-12 | Henkel Kommanditgesellschaft auf Aktien | Comprimes stables bifonctionnels de produits de lavage a faible alcalinite, sans phosphates, sans metasilicates et sans polymeres, pour lave-vaisselle, et leur procede de production |
DE102013225920A1 (de) * | 2013-12-13 | 2015-06-18 | Henkel Ag & Co. Kgaa | Phosphatfreies flüssiges Geschirrspülmittel |
DE102015213938A1 (de) * | 2015-07-23 | 2017-01-26 | Henkel Ag & Co. Kgaa | Einsatz einer Kombination aus Komplexbildner und Tensid zur Verbesserung der Klarspülleistung |
DE102015213940A1 (de) * | 2015-07-23 | 2017-01-26 | Henkel Ag & Co. Kgaa | Maschinelles Geschirrspülmittel enthaltend Bleichmittel, Builder und Enzyme |
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US4102799A (en) | 1974-08-29 | 1978-07-25 | Colgate-Palmolive Company | Automatic dishwasher detergent with improved effects on overglaze |
DE4121307A1 (de) | 1991-06-27 | 1993-01-07 | Henkel Kgaa | Verfahren zur herstellung stabiler, bifunktioneller, phosphat- und metasilikatfreier niederalkalischer reinigungsmitteltabletten fuer das maschinelle geschirrspuelen |
BR9814022A (pt) | 1997-11-10 | 2000-09-26 | Procter & Gamble | Tablete de detergente |
EP1721962B1 (fr) | 2005-05-11 | 2008-08-13 | Unilever N.V. | Compositions detergentes pour lave vaisselle et procédé pour nettoyer la vaiselle |
DE102007059677A1 (de) | 2007-12-10 | 2009-06-25 | Henkel Ag & Co. Kgaa | Reinigungsmittel |
US20100323941A1 (en) | 2009-06-17 | 2010-12-23 | Venus Laboratories, Inc. | Automatic Dishwashing Detergent |
DE102014208509A1 (de) | 2014-05-07 | 2015-11-12 | Henkel Ag & Co. Kgaa | Reinigungsmittel |
-
2017
- 2017-07-21 DE DE102017212561.6A patent/DE102017212561A1/de not_active Withdrawn
-
2018
- 2018-07-09 EP EP18182518.3A patent/EP3431575B1/fr active Active
- 2018-07-09 ES ES18182518T patent/ES2777832T3/es active Active
- 2018-07-09 PL PL18182518T patent/PL3431575T3/pl unknown
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4232170A1 (de) * | 1992-09-25 | 1994-03-31 | Henkel Kgaa | Schwachalkalische Geschirreinigungsmittel |
EP0662117B1 (fr) | 1992-09-25 | 2000-06-21 | Henkel Kommanditgesellschaft auf Aktien | Detergent faiblement alcalin pour lave-vaisselle |
EP0692020B1 (fr) | 1993-04-01 | 1997-11-12 | Henkel Kommanditgesellschaft auf Aktien | Comprimes stables bifonctionnels de produits de lavage a faible alcalinite, sans phosphates, sans metasilicates et sans polymeres, pour lave-vaisselle, et leur procede de production |
US5691293A (en) * | 1993-04-01 | 1997-11-25 | Henkel Kommanditgesellschaft Auf Aktien | Stable, dual-function, phosphate-, metasilicate- and polymer-free low-alkali detergent tablets for dishwashing machines and a process for their production |
DE102013225920A1 (de) * | 2013-12-13 | 2015-06-18 | Henkel Ag & Co. Kgaa | Phosphatfreies flüssiges Geschirrspülmittel |
DE102015213938A1 (de) * | 2015-07-23 | 2017-01-26 | Henkel Ag & Co. Kgaa | Einsatz einer Kombination aus Komplexbildner und Tensid zur Verbesserung der Klarspülleistung |
DE102015213940A1 (de) * | 2015-07-23 | 2017-01-26 | Henkel Ag & Co. Kgaa | Maschinelles Geschirrspülmittel enthaltend Bleichmittel, Builder und Enzyme |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP4008764A1 (fr) * | 2020-12-01 | 2022-06-08 | Henkel AG & Co. KGaA | Nettoyage amélioré au moyen du carbonate d'hydrogène dans le détergent de lavage en machine |
Also Published As
Publication number | Publication date |
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DE102017212561A1 (de) | 2019-01-24 |
EP3431575B1 (fr) | 2020-01-08 |
PL3431575T3 (pl) | 2020-06-15 |
ES2777832T3 (es) | 2020-08-06 |
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