EP3436559A1 - Détergents vaisselle à efficacité de rinçage améliorée - Google Patents

Détergents vaisselle à efficacité de rinçage améliorée

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Publication number
EP3436559A1
EP3436559A1 EP17714211.4A EP17714211A EP3436559A1 EP 3436559 A1 EP3436559 A1 EP 3436559A1 EP 17714211 A EP17714211 A EP 17714211A EP 3436559 A1 EP3436559 A1 EP 3436559A1
Authority
EP
European Patent Office
Prior art keywords
carbon atoms
acid
dishwashing
dishwashing detergent
weight
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.)
Withdrawn
Application number
EP17714211.4A
Other languages
German (de)
English (en)
Inventor
Inga Kerstin Vockenroth
Noelle Wrubbel
Thomas Weber
Britta Strauss
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Henkel AG and Co KGaA
Original Assignee
Henkel AG and Co KGaA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Henkel AG and Co KGaA filed Critical Henkel AG and Co KGaA
Publication of EP3436559A1 publication Critical patent/EP3436559A1/fr
Withdrawn legal-status Critical Current

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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
    • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/66—Non-ionic compounds
    • C11D1/825—Mixtures of compounds all of which are non-ionic
    • C11D1/8255—Mixtures of compounds all of which are non-ionic containing a combination of compounds differently alcoxylised or with differently alkylated chains
    • 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
    • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/66—Non-ionic compounds
    • C11D1/72—Ethers of polyoxyalkylene glycols
    • C11D1/721—End blocked ethers

Definitions

  • the present invention relates to dishwashing detergents with improved rinse aid performance, the use of these dishwashing detergents, and a machine dishwashing method using these dishwashing detergents.
  • Machine-washed dishes are often subject to more stringent requirements today than manually-washed dishes. So even a completely cleaned of leftovers dishes is then rated as not flawless if it has after dishwasher washing whitish, based on water hardness or other mineral salts stains that come from lack of wetting agent from dried water droplets. Such staining and streaking is in principle observable on surfaces of all kinds (porcelain, glass, plastic, stainless steel), but especially on glass surfaces. This harness is the consumer - often by hand - post-treated, which is not very user-friendly. Therefore, there is a need for automatic dishwashing agents that reduce the formation of so-called spotting and filming stains and deposits.
  • the object underlying the present invention was therefore to a
  • a first aspect of the present invention therefore relates to a dishwashing detergent, in particular a machine phosphate-free dishwashing detergent, containing, based on the total weight of the dishwashing detergent, from 0.5 to 20.0 wt .-%, preferably 1, 0 to 10.0 wt. %, more preferably 2.0 to 5.0% by weight of a surfactant mixture comprising:
  • R is a linear or branched, saturated or mono- or polyunsaturated hydrocarbon radical having 2 to 30 carbon atoms, preferably 4 to 22
  • Carbon atoms more preferably 8 to 10 carbon atoms
  • R 2 is a linear or branched, saturated or mono- or polyunsaturated hydrocarbon radical having 1 to 30 carbon atoms, preferably 2 to 20 carbon atoms, more preferably 6 to 12 carbon atoms,
  • x is from 1 to 90, preferably from 10 to 60, and especially from 15 to 40;
  • R 3 and R 4 independently of one another represent a linear or branched, saturated or mono- or polyunsaturated hydrocarbon radical having 2 to 26 carbon atoms, preferably 6 to 12 carbon atoms,
  • each R 5 is independently selected from -CH 3 , -CH 2 CH 3, -CH 2 CH 2 -CH 3 and -CH (CH 3 ) 2, but preferably is -CH 3 , and
  • y and z are independently from 1 to 32, preferably y is from 15 to 32 and z is from 1 to 3,
  • the mass ratio of the at least one nonionic surfactant (i) to the at least one nonionic surfactant (ii) is in the range of 1: 4 to 4: 1, preferably in the range of 1: 1 to 4: 1.
  • a dishwashing agent according to the invention in a machine dishwashing process, in particular the use for improving the rinsing performance when cleaning dishes 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 rinse performance.
  • a dishwasher detergent according to the invention is used, in particular for the purpose of improving the rinse performance.
  • the use of the surfactant mixture used according to the invention for improving the final rinse performance of a machine dishwashing detergent is also the subject of the present invention.
  • At least one as used herein means 1 or more, ie 1, 2, 3, 4, 5, 6, 7, 8, 9 or more. With respect to an ingredient, the indication refers to the kind of the ingredient and not to the absolute number of molecules. "At least one nonionic surfactant” thus means, for example, at least one type of nonionic surfactant, ie that kind of
  • nonionic surfactant or a mixture of several different nonionic surfactants.
  • the term, together with weights, refers to all compounds of the type indicated which are included in the composition / mixture, i. that the
  • composition beyond the specified amount of the corresponding compounds addition no further compounds of this kind.
  • Phosphate-free as used herein means that the composition in question is substantially free of phosphates, ie, in particular, contains phosphates in amounts less than 1% by weight, preferably less than 0.1% by weight, based on the total composition. Accordingly, as used herein, "free of” means that the respective fabric is present in amounts less than 1% by weight, preferably less than 0.1% by weight, more preferably less than 0.01% by weight of the Total composition is included. In particular, this also means that the corresponding substance is not deliberately added.
  • 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 compositions of the invention contain a surfactant mixture which comprises at least two low-foaming nonionic surfactants from the group of end-capped, poly (oxyalkylated) nonionic surfactants as defined above.
  • the surfactant mixture comprises at least one first nonionic surfactant from the group of end-capped, poly (ethoxylated) nonionic surfactants of the formula
  • R 0 [CH 2 CH 2 0] xCH 2 CH (OH) R 2 , which in addition to a radical R, which is linear or branched, saturated or mono- or polyunsaturated, hydrocarbon radicals having 2 to 30 carbon atoms, preferably 4 to 22 carbon atoms, more preferably 8 to 10 carbon atoms, further with a linear or branched, saturated or mono- or polyunsaturated hydrocarbon radical R 2 with
  • x is from 1 to 90, preferably from 10 to 60, and especially from 15 to 40.
  • the hydrocarbon radicals R and / or R 2 are preferably aliphatic hydrocarbon radicals, in particular linear or branched alkyl radicals. R is thus preferably an alkyl radical
  • R 2 is preferably an alkyl radical of 1 to 30 carbon atoms, preferably 2 to 20 carbon atoms, more preferably 6 to 12 carbon atoms , In particularly preferred embodiments, R 2 is an alkyl radical having 8 carbon atoms and thus forms a 2-hydroxydecyl radical etherified with the ethylene oxide units.
  • 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.
  • this nonionic surfactant (i) is a C8-12 fatty alcohol (EO) 22-2-hydroxydecyl ether.
  • "EO” in this context means "ethylene oxide", ie a group of formula (CH2CH2O).
  • the surfactant mixture additionally comprises at least one second nonionic surfactant from the group of hydroxy mixed ethers of the formula
  • R 3 0 [CH 2 CH 2 O] y [CH 2 CH (R 5 ) O] z CH 2 CH (OH) R 4 , where R 3 and R 4 independently of one another represent a linear or branched, saturated or mono- or polyunsaturated hydrocarbon radical having 2 to 26 carbon atoms, preferably 6 to 12 carbon atoms, each R 5 is independently selected from -Chta, -CH 2 CH 3, -CH 2 CH 2 -CH 3 and -CH (CH 3) 2, but preferably is -CH 3, and y and z are independently from each other from 1 to 32, preferably y is from 15 to 32 and z is from 1 to 3.
  • the hydrocarbon radicals R 3 and / or R 4 are aliphatic hydrocarbon radicals, in particular linear or branched alkyl radicals.
  • R 3 is preferably a linear or branched, more preferably linear alkyl radical of 2 to 30 carbon atoms, preferably of 4 to 22 carbon atoms, more preferably 8 to 10 carbon atoms, or a mixture of such radicals
  • R 4 is preferably a linear or branched one, especially preferably linear alkyl radical having 1 to 30 carbon atoms, preferably 2 to 20
  • R 4 is an alkyl group having 8 carbon atoms and thus forms an etherified with alkylene oxide of 2-Hydroxydecylrest.
  • R 5 is preferably -CH 3 and thus forms a propylene oxide unit. It is preferred that z is 1 or 2, especially 1. In such embodiments, y is more preferably 20-24, most preferably 22.
  • nonionic surfactants include, for example, the C2-26 fatty alcohol (EO) iso-4o (PO) i-2-hydroxyalkyl ethers, in particular also the C8-12 fatty alcohol (EO) 22- (PO) i-2-hydroxydecyl ethers , Most preferably, this nonionic surfactant (ii) is a coco fatty alcohol (EO) 22- (PO) i-2-hydroxydecyl ether.
  • PO in this context means "propylene oxide", i. a group of the formula (CH 2 CH (CH 3) 0).
  • Preferred surfactant mixtures in the dishwashing compositions according to the invention contain as nonionic surfactant i) at least one C4-22 fatty alcohol (EO) io-8o-2-hydroxyalkyl ether, in particular also the C8-12 fatty alcohol (EO) 22-2-hydroxydecyl ether and the C4- 22 fatty alcohol (EO) 4o-8o-2-hydroxyalkyl ether, and as nonionic surfactant (ii) at least the C2-26 fatty alcohol (EO) is-4o (PO) i-2-hydroxyalkyl ether.
  • nonionic surfactant i) at least one C4-22 fatty alcohol (EO) io-8o-2-hydroxyalkyl ether in particular also the C8-12 fatty alcohol (EO) 22-2-hydroxydecyl ether and the C4- 22 fatty alcohol (EO) 4o-8o-2-hydroxyalkyl ether
  • nonii at least the C2-26 fatty alcohol (EO) is-4o (PO) i-2-
  • Particularly preferred surfactant mixtures contain at least one C4-22 fatty alcohol (EO) iso-2-hydroxyalkyl ether as nonionic surfactant (i) and at least one coco fatty alcohol (EO) 22- (PO) i-2-hydroxydecyl ether as nonionic Surfactant (ii).
  • EO C4-22 fatty alcohol
  • EO coco fatty alcohol
  • PO coco fatty alcohol
  • Dishwashing detergent containing at least one C8-12 fatty alcohol (EO) 22-2-hydroxydecyl ether as nonionic surfactant (i) and at least one coco fatty alcohol (EO) 22- (PO) i-2-hydroxydecyl ether as nonionic surfactant (ii ).
  • the mass ratio of the at least one nonionic end-capped ethoxylated surfactant to the at least one hydroxy mixed ether, i. from the surfactant (i) to the surfactant (ii) is in the range of 1: 4 to 4: 1, preferably in the range of 1: 1 to 4: 1.
  • the amount relative to the total weight of the composition for the surfactant (i) is preferably 1 to 5 wt .-%, preferably 2 to 3 wt .-% and for the surfactant (ii) preferably 0.2 to 2 wt .-%, preferably 0.5 to 1, 5 wt.%.
  • Mass ratios relate in each case to the total amount of the surfactants according to (i) or (ii) in the dishwashing agents according to the invention.
  • Preferred surfactant mixtures in the dishwasher detergents according to the invention comprise as nonionic surfactant i) at least one C4-22 fatty alcohol (EO) io-8o-2-hydroxyalkyl ether, in particular also the C8-12 fatty alcohol (EO) 22-2-hydroxydecyl ether and the C4- 22 fatty alcohol (EO) 4o-8o-2-hydroxyalkyl ethers, and as nonionic surfactant (ii) at least the C2-26 fatty alcohol (EO) i5-4o (PO) i-2-hydroxyalkyl ethers in a mass ratio in the range of 1 : 1 to 4: 1.
  • Particularly preferred surfactant mixtures contain at least one C4-22 fatty alcohol (EO) iso-2-hydroxyalkyl ether as nonionic surfactant (i) and at least one coco fatty alcohol (EO) 22- (PO) i-2-hydroxydecyl ether as nonionic Surfactant (ii) in a mass ratio ranging from 1: 1 to 4: 1.
  • EO C4-22 fatty alcohol
  • EO coco fatty alcohol
  • PO i-2-hydroxydecyl ether
  • a surfactant mixture or a dishwashing detergent comprising at least one C8-12 fatty alcohol (EO) 22-2-hydroxydecyl ether as nonionic surfactant (i) and at least one coco fatty alcohol (EO) 22- (PO) i 2-hydroxydecyl ether as a nonionic surfactant (ii) in a mass ratio ranging from 1: 1 to 4: 1.
  • Dishwashing detergent containing a C8-12 fatty alcohol (EO) 22-2-hydroxydecyl ether as
  • the amount is based on the
  • Total weight of the composition in a preferred embodiment for the surfactant (i) 2 to 3 wt .-% and 0.5 to 1, 5 wt.%
  • the surfactant (ii) 2 to 3 wt .-% and 0.5 to 1, 5 wt.%
  • compositions according to the invention may contain surfactants in the surfactant mixture, in particular further nonionic or else anionic surfactants, but also cationic or amphoteric surfactants.
  • Suitable further nonionic surfactants are, for example, alkyl glycosides of the general formula RO (G) x in which R corresponds to 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 Is a symbol which represents 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 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.
  • surfactants are the polyhydroxy fatty acid amides known as PHFA.
  • nonionic surfactants are, for example, those which have alternating ethylene oxide and alkylene oxide (AO) units having 3 or more carbon atoms.
  • 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.
  • 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.
  • nonionic surfactants having a C9-alkyl group with 1 to 4 ethylene oxide units followed by 1 to 4
  • R is a linear or branched aliphatic hydrocarbon radical having 4 to 18 carbon atoms or mixtures thereof, R 2 is a linear or branched one
  • 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.
  • 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 ,
  • Suitable anionic surfactants are all anionic surfactants. These are characterized by a water-solubilizing, anionic group such as. Legs
  • glycol or polyglycol ether groups, ester, ether and amide groups and hydroxyl groups may be present in the molecule.
  • Suitable anionic surfactants are preferably in the form of the sodium, potassium and ammonium as well as the mono-, di- and
  • 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
  • Fatty acid sarcosinates Fatty acid sarcosinates, ether carboxylic acids and alkyl (ether) phosphates and ⁇ -sulfofatty acid salts, acylglutamates, monoglyceride disulfates and alkyl ethers of glycerol disulfate.
  • Preferred anionic surfactants include those of the formula
  • R 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 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 are preferred.
  • radicals R 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 + can be selected from NhV, V Mn 2+ , and mixtures thereof.
  • an anionic surfactant of the formula R 3 -A-S0 3 - Y + . be contained in the dishwashing detergent.
  • R 3 is a linear or branched, substituted or unsubstituted alkyl, aryl or alkylaryl radical and the
  • R 3 is preferably a linear, unsubstituted alkyl radical, more preferably a fatty alcohol radical.
  • Preferred radicals R 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 are preferred.
  • Particularly preferred radicals R 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 nth part of an n-valent cation, preference being given to the alkali metal ions and including Na + or K + , where Na + is extremely preferred.
  • Other cations Y + can be selected from NhV, Vi ⁇ 2+ , ⁇ Ca 2 *, Vi Mn 2+ , and mixtures thereof.
  • Suitable amphoteric surfactants are, for example, betaines of the formula (R 1) XR 1 XR 3 N-chloroCOO-, in which R i is an alkyl radical having 8 to 25, preferably 10 to 21 carbon atoms interrupted by hetero atoms or heteroatom groups and R iv and R v are identical or different alkyl radicals 1 to 3 carbon atoms, in particular Cio-Cis-alkyl dimethylcarboxymethylbetain and Cn-Ci7-alkylamidopropyl-dimethylcarboxymethylbetain.
  • Suitable cationic surfactants are i.a. the quaternary ammonium compounds of the formula
  • R VI (R VI ) (R vii ) (R viii ) (R ix ) N + X "
  • R vi to R ix for four identical or different, in particular two long and two short-chain, alkyl radicals and X " for an anion , in particular a halide ion, for example, didecyl-dimethyl-ammonium chloride, alkyl-benzyl-didecyl-ammonium chloride and mixtures thereof.
  • Suitable cationic surfactants are the quaternary
  • surface-active compounds in particular with a sulfonium, phosphonium, iodonium or arsonium group, which are also known as antimicrobial agents.
  • the agent can be designed with an antimicrobial effect or its possibly existing antimicrobial effect due to other ingredients can be improved.
  • the content of cationic and / or amphoteric surfactants is preferably less than 4 wt .-%, more preferably less than 2 wt .-% and
  • Dishwashing detergents containing no cationic or amphoteric surfactants are particularly preferred.
  • the agents according to the invention may comprise at least one, preferably two or more further constituents, preferably selected from the group consisting of builders, enzymes, thickeners, sequestering agents, electrolytes, corrosion inhibitors, in particular silver protectants, glass corrosion inhibitors, polymers, bleaches, bleach activators, foam inhibitors, dyes, fragrances , Bitter substances and antimicrobial agents.
  • Builders which may be present in the dishwashing detergent are, in particular, silicates, aluminum silicates (in particular zeolites), carbonates, organic (co) builders, such as, for example, salts of organic di- and polycarboxylic acids, and mixtures of these substances.
  • NaMSix02x + i ⁇ y H2O are used, wherein M represents sodium or hydrogen, x is a number from 1, 9 to 22, preferably from 1, 9 to 4, with particularly preferred values for x 2, 3 or 4 and y is a number from 0 to 33, preferably from 0 to 20.
  • M represents sodium or hydrogen
  • x is a number from 1, 9 to 22, preferably from 1, 9 to 4, with particularly preferred values for x 2, 3 or 4
  • y is a number from 0 to 33, preferably from 0 to 20.
  • layered silicates of the formula NaMSix02x + i ⁇ y H2O for example, by Clariant GmbH (Germany) under the trade name Na-SKS.
  • these silicates are Na-SKS-1 (Na 2 Si 2 2045 ⁇ x H2O, kenyaite), Na-SKS-2 (Na2 Sii40 2 9 ⁇ x H2O, magadiite), Na-SKS-3 (Na 2 Si 8 0i7 ⁇ x H2O) or Na-SKS-4 (Na 2 SI40 9 ⁇ x H2O, makatite).
  • Particularly suitable for the purposes of the present invention are crystalline phyllosilicates of the formula
  • Na-SKS-5 a-Na2Si20s
  • Na-SKS-7 .beta.-Na2 Si2 05, natrosilite
  • Na-SKS-9 NaHSi 2 0 5 ⁇ H2O
  • Na-SKS-10 NaHSi 2 0 5 ⁇ 3 H2O, kanemite
  • Na-SKS-1 1 t-Na 2 Si 2 05
  • Na-SKS-13 Na-SKS-13
  • the dishwashing detergents contain in various embodiments, a weight ratio of the crystalline layered silicate of the formula NaMSi x 02x + y i ⁇ H2O of 0.1 to 20 wt .-%, preferably from 0.2 to 15 wt .-% and in particular 0.4 to 10 wt .-%, each based on the total weight of these agents.
  • the agents are free of such silicates.
  • amorphous sodium silicates having a modulus Na 2 O: SiO 2 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 are preferably delayed in dissolution and secondary wash 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 typical of crystalline substances in X-ray diffraction experiments, but at most one or more maxima of the scattered X-rays having a width of several degrees of diffraction angle , cause.
  • the agents are free of these silicates.
  • alkali carriers are examples of alkali carriers.
  • 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 .-%, each based on the total weight of the automatic dishwashing detergent.
  • Particularly preferred are agents which, based on their total weight, contain less than 0.5% by weight and in particular no alkali metal hydroxides.
  • the dishwashing detergents can contain as further builders in particular also phosphonates, which according to the invention are not subsumed under the phosphates.
  • the phosphonate compound used is preferably a hydroxyalkane and / or aminoalkane phosphonate.
  • HEDP 1-hydroxyethane-1,1-diphosphonate
  • Preferred aminoalkanephosphonates are ethylenediaminetetramethylenephosphonate (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 0.3 to 8 wt .-%, each based on the total weight of the dishwashing detergent.
  • organic (co) builders are polycarboxylates / polycarboxylic acids, polymeric polycarboxylates, aspartic acid, polyacetals, dextrins, other organic cobuilders and the phosphonates already mentioned above as builders. These classes of substances are described below.
  • 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.
  • these are citric acid, adipic acid, succinic acid, glutaric acid, malic acid, tartaric acid,
  • acids Maleic acid, fumaric acid, sugar acids, nitrilotriacetic acid (NTA), provided such use is not objectionable for environmental reasons, and mixtures thereof.
  • NTA nitrilotriacetic acid
  • acids also typically have the property of a
  • Acidification and thus also serve to set a lower and milder pH of the dishwashing detergent.
  • citric acid, succinic acid, glutaric acid, adipic acid, gluconic acid and any desired mixtures of these can be mentioned here.
  • machine dishwashing detergents are preferred according to the invention, characterized in that the automatic dishwashing detergent
  • Citric acid or the salt of citric acid is preferably 1 to 40 wt .-%, preferably 2 to 15 wt .-% and in particular between 3 and 10 wt .-%.
  • phosphate-free builders 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 (EDDS) or its salts.
  • MGDA Methylglycinediacetic acid
  • GLDA glutamic diacetic acid
  • EDDS ethylenediaminediacetic acid
  • Particularly suitable are methylglycinediacetic acid (MGDA) or its salts, and glutamic diacetic acid (GLDA) or its salts.
  • GLDA glutamic diacetic acid
  • Very particular preference is GLDA or its salts. The content of these
  • Aminocarboxylic acids or their salts preferably MGDA sodium salt or GLDA sodium salt, in particular GLDA sodium salt, for example, between 0.1 and 25 wt .-%, preferably between 5 and 25 wt .-% and in particular between 15 and 25 wt. -%.
  • Aminocarboxylic acids and their salts can be used, for example, together with the abovementioned builders, in particular together with citrate and the abovementioned phosphonates.
  • compositions of the invention may further contain a sulfopolymer.
  • the proportion by weight of the sulfopolymer in the total weight of the cleaning 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 typically employed in the form of an aqueous solution, the aqueous solutions typically containing from 20 to 70 weight percent, more preferably from 30 to 50 weight percent, preferably from about 35 to 40 weight percent sulfopolymers.
  • the sulfopolymer used is preferably a copolymeric polysulfonate, preferably a hydrophobically modified copolymeric polysulfonate.
  • the 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,
  • 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-propenylsulfonic acid, styrenesulfonic acid, vinylsulfonic acid, 3-sulfopropyl acrylate, 3-sulfo - Propylmethacrylat, sulfomethacrylamide, sulfomethylmethacrylamide and mixtures of said acids or their water-
  • 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.
  • the monomer distribution of the copolymers preferably used according to the invention 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 from 50 to 90% by weight of the sulfonic acid group-containing monomer. % and the share of
  • the molar mass of the sulfo copolymers preferably used according to the invention can be varied in order to adapt the properties of the polymers to the desired end use.
  • Preferred cleaning agents are characterized in that the copolymers have molar masses of 2000 to 200,000 gmol ⁇ preferably of 4000 to 25,000 gmol " and in particular of 5000 to 15,000 gmol -1 .
  • compositions of the invention can be used in the compositions of the invention.
  • the group of polymers includes in particular the wash or
  • cleaning-active polymers for example the rinse aid polymers and / or as softeners effective polymers.
  • cationic, anionic and amphoteric polymers can be used in automatic dishwashing detergents in addition to nonionic polymers.
  • the sulfo (co) polymers described above are, for example, anionic polymers.
  • amphoteric polymers also have, in addition to a positively charged group in the polymer chain, also negatively charged groups or monomer units. These groups may be, for example, carboxylic acids, sulfonic acids or phosphonic acids.
  • Preferred usable amphoteric polymers are from the group of
  • 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 the copolymers of unsaturated carboxylic acids, cationically derivatized unsaturated carboxylic acids and optionally further ionic or nonionic monomers.
  • Preferred zwitterionic polymers are from the group of acrylamidoalkyl trialkyl ammonium 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 Methacroylethylbetain / methacrylate copolymers.
  • “Cationic polymers” are polymers which carry a positive charge in the polymer molecule, which can be realized, for example, by (alkyl) ammonium groups or other positively charged groups present in the polymer chain.
  • Particularly preferred cationic polymers originate from the groups of the quaternized cellulose derivatives, the polysiloxanes with quaternary groups, the cationic guar derivatives, the polymeric
  • the aforementioned amphoteric, zwitterionic or cationic polymers are in prefabricated form. To prepare the polymers u.a.
  • Coating compositions preferably by means of water-insoluble coating agents from the group of waxes or paraffins having a melting point above 30 ° C;
  • Support materials from the group of washing or cleaning-active substances particularly preferably from the group of builders (builders) or cobuilders.
  • enzymes As enzymes, various enzyme preparations or enzyme compositions known in the art can be used. These enzyme preparations or
  • Enzyme compositions usually contain at least one protease and one or more additional enzymes.
  • suitable enzymes include, but are not limited to, amylases, lipases, hemicellulases, cellulases, perhydrolases or oxidoreductases, and preferably mixtures thereof. These enzymes are basically of natural origin; Starting from the natural molecules, improved variants are available for use in detergents, which are preferably used accordingly.
  • Agents according to the invention preferably contain enzymes in total amounts of from 1 ⁇ 10 -6 to 5% by weight, based on active protein. The active protein concentration can be determined by known methods, for example the BCA method or the biuret method.
  • 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 the proteolysis is particularly preferred, especially if the agents also contain proteases.
  • the agents may contain stabilizers for this purpose; the provision of such means constitutes a preferred embodiment of the present invention.
  • Cleaning-active enzymes are generally not provided in the form of the pure protein but rather in the form of stabilized, storable and transportable preparations.
  • These 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, sparing 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 with a water, air and / or Chemical-impermeable protective layer is coated.
  • 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 with a water, air and / or Chemical-impermeable protective layer is coated.
  • 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
  • the enzyme protein forms only a fraction of the total weight of conventional enzyme preparations.
  • Enzyme preparations preferably used according to the invention contain between 0.1 and 40% by weight, preferably between 0.2 and 30% by weight, more preferably between 0.4 and 20% by weight and in particular between 0.8 and 10 % By weight of the enzyme protein.
  • Protease and amylase preparations preferably used according to the invention each contain between 0.1 and 40% by weight, preferably between 0.2 and 30% by weight, more preferably between 0.4 and 20% by weight and in particular between 0 and 0 , 8 and 10 wt .-% of the enzyme protein.
  • agents which, based in each case on their total weight, contain 0.1 to 12% by weight, preferably 0.1 to 10% by weight and in particular 0.2 to 5% 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 in particular 4-formylphenyl-boronic acid, or the salts or esters of said compounds.
  • 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 C12, such as succinic acid, other dicarboxylic acids or salts of said acids. End-capped fatty acid amide alkoxylates are also suitable for this purpose. Certain used as builders organic acids, as disclosed in WO 97/18287, additionally stabilize a contained enzyme.
  • Bleaching agents are washing or cleaning substances.
  • the compounds serving as bleaches in water H2O2 are sodium percarbonate,
  • Sodium perborate tetrahydrate and sodium perborate monohydrate are of particular importance.
  • Further useful bleaching agents are, for example, peroxypyrophosphates, citrate perhydrates and peroxygenic salts or peracids which yield H2O2, such as perbenzoates, peroxophthalates, diperazelaic acid, phthaloiminoperacid or diperdodecanedioic acid. It is also possible to use all other inorganic or organic agents known to the person skilled in the art
  • the dishwashing agents may contain 1 to 35% by weight,
  • bleaching agent preferably sodium percarbonate.
  • the dishwashing agents additionally contain at least one bleach activator.
  • bleach activators compounds mentioned in U.S. Pat
  • Perhydrolysis aliphatic peroxycarboxylic acids having preferably 1 to 10 carbon atoms, in particular 2 to 4 carbon atoms, and / or optionally substituted perbenzoic acid, are used. Of all those skilled in the art known from the prior art
  • Bleach activators are polyacylated alkylenediamines, in particular tetraacetylethylenediamine (TAED), acylated triazine derivatives, in particular 1,5-diacetyl-2,4-dioxohexahydro-1,3,5-triazine (DADHT), 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 tetraacetylethylenediamine
  • DADHT 1,5-diacetyl-2,4-dioxohexahydro-1,3,5-triazine
  • TAGU t
  • bleach activators are preferably used in amounts of up to 10% by weight, in particular 0.1% by weight to 8% by weight, especially 2 to 8% by weight and more preferably 2 to 6% by weight, based in each case on the total weight of bleach activator-containing agents.
  • the pH of the agent can be adjusted by means of customary pH regulators, the pH value being selected depending on the desired application.
  • the pH is in a range of 5.5 to 12, preferably 6 to 1 1, more preferably 7 to 10, in particular greater than 7, especially in the range 7.5 to 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. In addition, however, it is also possible to use the 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.
  • the alkanolamine here is preferably selected from the group consisting of mono-, di-, triethanol- and -propanolamine and mixtures thereof.
  • the alkanolamine is preferably contained in agents according to the invention in an amount of from 0.5 to 10% by weight, in particular in an amount of from 1 to 6% by weight.
  • 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). Particularly preferred buffer substances are citric acid or citrates, in particular the sodium and potassium lead,
  • trisodium citrate 2H20 and tripotassium citrate ⁇ 2 ⁇ for example, trisodium citrate 2H20 and tripotassium citrate ⁇ 2 ⁇ .
  • 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 originate from the group of bismuth, magnesium and zinc salts as well as bismuth, magnesium and zinc complexes, in particular zinc acetate.
  • As glass corrosion inhibitors alkoxylated or non-alkoxylated, in particular not alkoxylated, singly or in combination with the abovementioned salts or complexes are also preferably used
  • the content of zinc salt in dishwashing agents is preferably between 0.1 and 5 wt.%, Preferably between 0.1 and 4 wt.% And in particular between 0.2 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
  • perfume oils or fragrances can be selected from individual perfume compounds, for example the synthetic products of the ester type, ethers, aldehydes, ketones, Alcohols and hydrocarbons 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 those available from vegetable sources, for example 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 acid 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,
  • 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 dishwashing detergent may be a low-water, liquid dishwashing detergent containing water in amounts up to a maximum of 25% by weight, preferably up to 20% by weight, based on the total weight of the composition.
  • the term "low in water” as used herein means that the composition thus characterized contains less than 25% by weight of water, preferably less than 20% by weight of water.
  • the water content as defined herein refers to the water content determined by Karl Fischer titration.
  • the formulation of 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 be the same or different
  • Liquid as used herein with respect to the agent of the invention therefore includes all compositions flowable at 20 ° C and normal pressure, and more particularly includes gels and pasty compositions.
  • the dishwashing agents described herein are preferably automatic dishwashing agents, which may be in solid or liquid form. Particularly preferred are the solid moldings described below. In a further particularly preferred embodiment, the agents according to the invention are liquid agents, in particular in the form of gels.
  • the dishwashing detergents can be present as shaped bodies. In order to facilitate the disintegration of such prefabricated moldings, it is possible Disintegrationstosmittel, so-called
  • Tablet disintegrants to incorporate into these agents to shorten the disintegration times 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 dishwashing agents described herein are preferably prefabricated into dosage units. These metering units preferably comprise the necessary for a cleaning cycle amount of washing or cleaning-active substances. Preferred metering 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 dishwashing agents in particular the prefabricated metering units, with particular preference have 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.
  • 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 be polyvinyl alcohol or a
  • 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.
  • 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 comprising a polyvinyl alcohol-containing sheet material suitable for producing the water-soluble sheath is 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.
  • 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 include, for example, plasticizers such as dipropylene glycol, ethylene glycol, diethylene glycol,
  • 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 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 invention likewise relates to a dishwashing process, in particular a machine dishwashing process, in which a dishwashing detergent according to the invention is used.
  • the subject matter of the present application is therefore furthermore a process for the cleaning of dishes in a dishwashing machine, in which the agent according to the invention is metered into the interior of a dishwasher during the passage of a dishwashing program before the main wash cycle or during the main wash cycle.
  • Dishwasher can be done manually, but preferably the agent is metered by means of the metering chamber in the interior of the dishwasher.
  • Nio-surfactant 1 Cs-12 fatty alcohol (EO) 22-2-hydroxydecyl ether
  • Nio-surfactant 2 Cs -io fatty alcohol (EO) 22- (PO) i-2-hydroxydecyl ether
  • Rinse-off grades based on the visual appearance of the dry items to be washed are assigned as parameters. It 20 g each of the recipes listed above in Table 1 are dosed and per rinse 100 g of dirt are dosed to simulate a normal soiled load.
  • Filming is determined in the Miele G698 at 50 ° C. Water hardness 21 ° dH. After completion of the rinse cycle, the machine is fully opened for 30 minutes and then the clear rinse effect is visually determined in the black box (black-painted room, D6500 daylight lamp). On the crockery and cutlery remaining dried water drops, streaks, coverings and films are scored on a scale of 1 - 10. 10 means no drops / films, 1 means heavy drops / filming.
  • the surfactant combination according to the invention leads to an improvement compared to the reference without surfactants (V2).
  • the surfactant combination can achieve significant advantages.

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Abstract

La présente invention concerne des détergents vaisselle à efficacité de rinçage améliorée, contenant par rapport au poids total de produit de lavage, de 0,5 à 20,0 % en poids d'un mélange de tensioactifs comprenant un tensioactif non ionique polyéthoxylé fermé au niveau du groupe terminal défini, ainsi qu'un hydroxyéther mixte défini. L'invention concerne également l'utilisation de ces détergents vaisselle, ainsi qu'un procédé de lavage de la vaisselle au moyen de ces détergents et l'utilisation du mélange de tensioactifs pour améliorer l'efficacité de rinçage d'un détergent vaisselle.
EP17714211.4A 2016-03-31 2017-03-29 Détergents vaisselle à efficacité de rinçage améliorée Withdrawn EP3436559A1 (fr)

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DE102016205344.2A DE102016205344A1 (de) 2016-03-31 2016-03-31 Geschirrspülmittel mit verbesserter Klarspülleistung
PCT/EP2017/057372 WO2017167786A1 (fr) 2016-03-31 2017-03-29 Détergents vaisselle à efficacité de rinçage améliorée

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DE102018133650A1 (de) * 2018-12-28 2020-07-02 Henkel Ag & Co. Kgaa Geschirrspülmittel mit verbesserter Klarspülleistung
CN115975742A (zh) * 2022-11-18 2023-04-18 浙江传化日用品有限公司 一种抑菌易漂洗的洗涤剂及其制备方法

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US5576281A (en) * 1993-04-05 1996-11-19 Olin Corporation Biogradable low foaming surfactants as a rinse aid for autodish applications
US5741767A (en) 1995-11-16 1998-04-21 Lever Brothers Company, Division Of Conopco, Inc. Peracid based dishwashing detergent composition
DE19738866A1 (de) * 1997-09-05 1999-03-11 Henkel Kgaa Schaumarme Tensidmischungen mit Hydroxymischethern
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