EP3670637B1 - Régulation de la viscosité dans les agents de rinçage à la main - Google Patents

Régulation de la viscosité dans les agents de rinçage à la main

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Publication number
EP3670637B1
EP3670637B1 EP18213646.5A EP18213646A EP3670637B1 EP 3670637 B1 EP3670637 B1 EP 3670637B1 EP 18213646 A EP18213646 A EP 18213646A EP 3670637 B1 EP3670637 B1 EP 3670637B1
Authority
EP
European Patent Office
Prior art keywords
hand dishwashing
dishwashing detergent
surfactant
viscosity
detergent according
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.)
Active
Application number
EP18213646.5A
Other languages
German (de)
English (en)
Other versions
EP3670637A1 (fr
Inventor
Marianne Schmeling
Detlef Buisker
Alexander Tollkoetter
Peter Victor
Ute Jaeschke
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
Priority to EP18213646.5A priority Critical patent/EP3670637B1/fr
Priority to PL18213646.5T priority patent/PL3670637T3/pl
Publication of EP3670637A1 publication Critical patent/EP3670637A1/fr
Application granted granted Critical
Publication of EP3670637B1 publication Critical patent/EP3670637B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • C11D1/83—Mixtures of non-ionic with anionic compounds
    • 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
    • C11D1/02—Anionic compounds
    • 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
    • C11D1/02—Anionic compounds
    • C11D1/12—Sulfonic acids or sulfuric acid esters; Salts thereof
    • C11D1/29—Sulfates of polyoxyalkylene ethers
    • 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
    • C11D1/75—Amino oxides
    • 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
    • C11D3/34—Organic compounds containing sulfur
    • C11D3/3418—Toluene -, xylene -, cumene -, benzene - or naphthalene sulfonates or sulfates

Definitions

  • the present invention relates to a hand dishwashing detergent. Furthermore, the present invention also relates to the use of such a detergent for cleaning dishes.
  • liquid cleaning agents especially hand dishwashing detergents
  • hand dishwashing detergents there is a high demand for liquid cleaning agents, especially hand dishwashing detergents, as they are easier to use and dose than solid products.
  • Liquid cleaning agents are usually offered in dosing bottles.
  • the viscosity of such products is of paramount importance: If cleaning agents are too viscous, dosing becomes difficult. Often, cleaning agent residues remain in the dosing bottle because they cannot be completely removed from the bottle due to the cleaning agent's high viscosity.
  • highly viscous cleaning agents dissolve more slowly in water and are therefore less suitable for use as hand dishwashing detergents.
  • the viscosity of the products can be reduced by increasing the solvent content. However, this is usually accompanied by a reduction in cleaning performance and more complex and expensive manufacturing processes, as additional solvents must be added.
  • US 2007/111924 A1 discloses a liquid cleaning agent suitable for hand dishwashing.
  • the agent contains 22.5% by weight alkyl ether sulfate and 7.5% by weight amine oxide, as well as 6.5% by weight nonionic surfactant.
  • WO 95/03383 Al discloses a thickened liquid detergent suitable, among other things, as a hand dishwashing detergent.
  • From the DE 10 2016 202822 A1 is also a liquid cleaning agent that can be used, among other things, as a hand dishwashing detergent.
  • the object of the present invention was therefore to identify surfactant combinations for hand dishwashing detergents that exhibit good cleaning performance and can be dosed easily and completely. Furthermore, despite these advantageous properties, the cleaning agent should be easy and cost-effective to produce.
  • viscosity is particularly dependent on pH, provided that slightly acidic to preferably alkaline pH values are present.
  • the viscosity of liquids is measured at 20°C using a Brookfield DV-II+ Pro Viscometer with spindle 31, at 0.6 rpm.
  • the present invention is further directed to the use of a
  • the total amount ratio of amine oxide to the total amount of surfactant is mentioned, it should be noted that the amine oxide, as a non-ionic surfactant, must be added to the total amount of surfactant.
  • At least one includes, but is not limited to, 1, 2, 3, 4, 5, 6 and more.
  • fatty acids or fatty alcohols or their derivatives represent branched or unbranched carboxylic acids or alcohols or their derivatives, preferably with 6 to 22 carbon atoms.
  • the oxo alcohols or their derivatives obtainable, for example, by the Roelen oxo synthesis can also be used accordingly.
  • alkaline earth metals are mentioned below as counterions for monovalent anions, this means that the alkaline earth metal is naturally present in only half the amount of the anion - sufficient to balance the charge.
  • a cleaning agent is understood to mean all agents suitable for cleaning solid surfaces, such as dishwashing detergents, especially hand dishwashing detergents. Other suitable ingredients are described in detail below.
  • a hand dishwashing detergent which does not contain betaines. Due to the omission of an amphoteric surfactant, the hand dishwashing detergents according to the invention are easier and more cost-effective to produce than a multicomponent surfactant system containing betaine, without the omission of an amphoteric surfactant resulting in a reduction in cleaning performance. It is assumed that the omission of betaines advantageously reduces viscosity.
  • a hand dishwashing detergent wherein the amount of amine oxide surfactant is 20 wt.% to 30 wt.% of the total amount of surfactant.
  • the inventors have surprisingly discovered that in the case of surfactant combinations with amine oxides, the viscosity is particularly dependent on the pH, provided that slightly acidic to alkaline pH values are present.
  • a hand dishwashing detergent is described, wherein the pH is 7 to 8.5, and more preferably 7 to 8. A pH of about 7.5 is also preferred.
  • the stated pH ranges are preferred because the enzymes used, in particular protease and/or amylases, can be stabilized particularly effectively.
  • these pH values are critical in the compositions containing amine oxides known from the prior art, since the viscosity values increase considerably.
  • the composition comprises one or more anionic surfactants in a total amount of from 3 wt% to 60 wt%, more preferably from 3 wt% to 40 wt%, and more preferably from 10 wt% to 35 wt%.
  • a hand dishwashing detergent wherein the anionic surfactant is an ether sulfate, the ether sulfate is preferably lauryl ether sulfate.
  • a hand dishwashing detergent is described, wherein the hand dishwashing detergent contains only the ether sulfate and the at least one Amine oxide as surfactants. Because they do not contain additional surfactants, such as amphoteric surfactants, the hand dishwashing detergents according to the invention are easier and more cost-effective to produce than multi-component surfactant systems, without any reduction in cleaning performance.
  • a hand dishwashing detergent comprising only an ether sulfate and an amine oxide as surfactants.
  • ether sulfates are particularly preferred anionic surfactants in combination with amine oxides, especially when amphoteric surfactants are omitted.
  • a hand dishwashing detergent contains a hydrotropic agent, wherein the hydrotropic agent preferably comprises sodium cumenesulfonate.
  • a hand dishwashing detergent is described, wherein the hand dishwashing detergent has a viscosity factor of 0.2 to 30 mPas.
  • the viscosity factor reflects the interplay of pH and viscosity, which in this case is provided by the composition according to the invention.
  • the cleaning agent according to the invention contains at least one amine oxide.
  • all amine oxides established in the prior art for these purposes i.e. compounds having the formula R 1 R 2 R 3 NO, in which each R 1 , R 2 and R 3, independently of the others, is an optionally substituted, for example hydroxy-substituted, C 1 -C 30 hydrocarbon chain, can be used in this regard.
  • Particularly preferably used amine oxides are those in which R 1 is C 12 -C 18 alkyl and R 2 and R 3 are each independently C 1 -C 4 alkyl, in particular C 12 -C 18 alkyldimethylamine oxides.
  • Suitable amine oxides are N-cocoalkyl-N,N-dimethylamine oxide and N-tallowalkyl-N,N-dihydroxyethylamine oxide.
  • C 12 -C 18 alkyldimethylamine oxides or mixtures which also contain C 16 and C 18 alkyldimethylamine oxides are preferred over C 12 -C 14 alkyldimethylamine oxides.
  • amine oxides in which R 1 also comprises C 16 and C 18 radicals are generally preferred over those in which R 1 only comprises C 12-14 radicals.
  • the amine oxides used therefore contain at least 20 wt.%, preferably at least 30 wt.%, more preferably at least 40 wt.%, most preferably at least 50 wt.%, 60 wt.%, 70 wt.% or 80 wt.% of C 16-18 amine oxides, based on the Total weight of the amine oxides.
  • a further residue of the amine oxides can consist of C 12-14 amine oxides. It has been shown that such long-chain amine oxides are superior to shorter-chain ones in terms of cleaning performance, especially in the described surfactant combination.
  • the cleaning agents of the invention further contain at least one anionic surfactant from the group of ether sulfates.
  • Preferred ether sulfates are those of formula (I) R 1 -O-(AO) n -SO 3 - X + (I).
  • R 1 represents a linear or branched, substituted or unsubstituted alkyl radical, preferably a linear, unsubstituted alkyl radical, particularly preferably a fatty alcohol radical.
  • Preferred R 1 radicals are selected from decyl, undecyl, dodecyl, tridecyl, tetradecyl, pentadecyl, hexadecyl, heptadecyl, octadecyl, nonadecyl, eicosyl radicals, and mixtures thereof, with preference given to those with an even number of carbon atoms.
  • R 1 radicals are derived from C 12 -C 18 fatty alcohols, for example from coconut fatty alcohol, tallow fatty alcohol, lauryl, myristyl, cetyl, or stearyl alcohol, or from C 10 -C 20 oxo alcohols.
  • X represents a monovalent cation or the nth part of an n-valent cation. Alkali metal ions are preferred, including Na + or K + , with Na + being most preferred. Further cations X + can be selected from NH4 + , 1 ⁇ 2 Zn2 + , 1 ⁇ 2 Mg2 + , 1 ⁇ 2 Ca2 + , 1 ⁇ 2 Mn2 + , and mixtures thereof.
  • AO represents an ethylene oxide (EO) or propylene oxide (PO) group, preferably an ethylene oxide group.
  • EO ethylene oxide
  • PO propylene oxide
  • the index n represents an integer from 1 to 50, preferably from 1 to 20, and in particular from 2 to 10. Most preferably, n represents the numbers 2, 3, 4, 5, 6, 7, or 8.
  • the cleaning agents according to the present invention are liquid and contain water as the main solvent, i.e., they are aqueous cleaning agents.
  • the water content of the aqueous agent according to the invention is typically 15 to 95 wt.%, preferably 20 to 90 wt.%. In various embodiments, the water content is more than 5 wt.%, preferably more than 15 wt.%, and particularly preferably more than 25 wt.%, in each case based on the total amount of cleaning agent.
  • Non-aqueous solvents can also be added to the cleaning agent.
  • Suitable non-aqueous solvents include mono- or polyhydric alcohols, alkanolamines, or glycol ethers, provided they are miscible with water within the specified concentration range.
  • the solvents are preferably selected from ethanol, n-propanol, i-propanol, butanols, glycol, propanediol, butanediol, methylpropanediol, glycerin, diglycol, propyl diglycol, butyl diglycol, hexylene glycol, ethylene glycol methyl ether, ethylene glycol ethyl ether, ethylene glycol propyl ether, ethylene glycol mono-n-butyl ether, diethylene glycol methyl ether, diethylene glycol ethyl ether, propylene glycol methyl ether, propylene glycol ethyl ether, propylene glycol prop
  • the one or more non-aqueous solvents are usually present in an amount of 0.1 to 10 wt.%, preferably 1 to 8 wt.%, based on the total composition.
  • the agents described herein may, in various embodiments, further contain at least one protease.
  • the proteases used are preferably alkaline serine proteases. They act as nonspecific endopeptidases, meaning they hydrolyze any acid amide bonds located within peptides or proteins, thereby causing the degradation of protein-containing soils on the items being cleaned. Their pH optimum is usually in the significantly alkaline range.
  • subtilisin 309 examples of the proteases usable in the agents described herein are subtilisin 309 or functional fragments/variants thereof, and variants of the alkaline protease from Bacillus lentus or variants thereof.
  • Subtilisin 309 is marketed under the trade name Savinase® by Novozymes A/S, Bagsvaerd, Denmark.
  • Optimized enzyme variants of subtilisin 309 from Bacillus lentus are available from Novozymes under the trade names Blaze® and Ovozyme® , which represent a preferred embodiment of the invention.
  • the protease variants known under the name BLAP® for example, are derived from the alkaline protease from Bacillus lentus DSM 5483.
  • Preferred here are in particular those protease variants which, compared to the BLAP wt (wild type) enzyme, in the count according to BLAP wt, have at least one mutation at R99, in particular R99E or R99D, particularly preferred is R99E, and optionally additionally at least one or two, preferably all three of the amino acid substitutions S3T, V4I and V199I, particularly preferred are the BLAP variants as shown in SeqID No. 4 or 5 of the WO2014/177430 are described.
  • the enzymes to be used can also be formulated together with accompanying substances, such as those from fermentation.
  • the enzymes are preferably used as liquid enzyme formulation(s).
  • Proteases are generally not provided in the form of pure proteins, but rather in the form of stabilized, storable, and transportable preparations. These prefabricated preparations include, for example, solid preparations obtained by granulation, extrusion, or lyophilization or, particularly in the case of liquid or gel-like products, solutions of the enzymes, preferably as concentrated as possible, with little water content, and/or containing stabilizers or other additives.
  • the enzymes can be encapsulated for both solid and liquid dosage forms, for example by spray-drying or extrusion of the enzyme solution together with a preferably natural polymer, or in the form of capsules, for example those in which the enzymes are enclosed as if 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.
  • Additional active ingredients such as stabilizers, emulsifiers, pigments, bleaching agents, or dyes, can be applied in superimposed layers.
  • Such capsules are applied using methods known per se, for example by shake or roll granulation or in fluid-bed processes. Such granules, for example by applying polymeric film formers, are advantageously low in dust and, due to the coating, are stable during storage.
  • cleaning agents according to the invention may contain one or more further enzymes, in particular from the following group: amylases, hemicellulases, cellulases, lipases and oxidoreductases.
  • the amylase(s) is/are preferably an ⁇ -amylase.
  • the hemicellulase is preferably a ⁇ -glucanase, a pectinase, a pullulanase, and/or a mannanase.
  • the cellulase is preferably a cellulase mixture or a single-component cellulase, preferably or predominantly an endoglucanase and/or a cellobiohydrolase.
  • the oxidoreductase is preferably an oxidase, in particular a choline oxidase, or a perhydrolase. All of the enzymes mentioned can be formulated as described above for the proteases.
  • the at least one enzyme preferably the at least one protease, is contained in an amount of 0.01 - 1.6 wt.%, preferably 0.08 - 1.2 wt.%, based on the total weight of the cleaning agent.
  • the enzyme(s) can be preformulated with enzyme stabilizers in an enzyme composition.
  • the enzyme protein usually constitutes only a fraction of the total weight of the enzyme preparation.
  • Preferably used enzyme 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 wt.% of the enzyme protein.
  • an enzyme stabilizer can be present in an amount of 0.05-35 wt.%, preferably 0.05-10 wt.%, based on the total weight. be contained in the enzyme composition.
  • This enzyme composition can then be used in cleaning agents according to the invention, specifically in amounts that result in the final concentrations in the cleaning agent specified above. Suitable enzyme stabilizers are known in the art.
  • the agent according to the invention can accordingly additionally comprise one or more enzyme stabilizers.
  • the protein concentration can be determined using known methods, for example, the BCA method (bicinchoninic acid; 2,2'-biquinolyl-4,4'-dicarboxylic acid) or the biuret method.
  • the active protein concentration is determined by titrating the active sites using a suitable irreversible inhibitor (for proteases, for example, phenylmethylsulfonyl fluoride (PMSF)) and determining the residual activity (see also: M. Bender et al., J. Am. Chem. Soc. 88, 24 (1966), pp. 5890-5913 ).
  • a suitable irreversible inhibitor for proteases, for example, phenylmethylsulfonyl fluoride (PMSF)
  • the cleaning agents according to the invention can contain other ingredients that further improve the application and/or aesthetic properties of the cleaning agent.
  • these include, for example, additives to improve drainage and drying behavior, to adjust viscosity, and/or for stabilization, as well as other auxiliaries and additives commonly found in cleaning agents, such as UV stabilizers, perfume, pearlescent agents, dyes, corrosion inhibitors, preservatives, bittering agents, organic salts, disinfectants, structuring polymers, defoamers, encapsulated ingredients (e.g., encapsulated perfume), pH adjusters, and skin-feel-improving or skin-care additives.
  • additives to improve drainage and drying behavior to adjust viscosity, and/or for stabilization
  • auxiliaries and additives commonly found in cleaning agents such as UV stabilizers, perfume, pearlescent agents, dyes, corrosion inhibitors, preservatives, bittering agents, organic salts, disinfectants, structuring polymers, defoamers, encapsulated ingredients (e.g., encapsulated perfume
  • the agent according to the invention can contain one or more additives from the group of polymers and builder substances (builders), usually in an amount of 0.001 to 5 wt.%, preferably 0.01 to 4 wt.%, in particular 0.1 to 3 wt.%, particularly preferably 0.2 to 2 wt.%, extremely preferably 0.5 to 1.5 wt.%, for example 1 wt.%.
  • builders usually in an amount of 0.001 to 5 wt.%, preferably 0.01 to 4 wt.%, in particular 0.1 to 3 wt.%, particularly preferably 0.2 to 2 wt.%, extremely preferably 0.5 to 1.5 wt.%, for example 1 wt.%.
  • Polymeric thickeners within the meaning of the present invention are the polycarboxylates which act as polyelectrolytes to thicken, preferably homo- and copolymers of acrylic acid, in particular acrylic acid copolymers such as acrylic acid-methacrylic acid copolymers, and the polysaccharides, in particular heteropolysaccharides, as well as other customary thickening polymers.
  • Suitable polysaccharides or heteropolysaccharides are polysaccharide gums, for example, gum arabic, agar, alginates, carrageenans and their salts, guar, guaran, tragacanth, gellan, ramsan, dextran or xanthan gum and their derivatives, e.g., propoxylated guar gum, as well as their mixtures.
  • Other polysaccharide thickeners such as starches or cellulose derivatives, can be used alternatively, but preferably in addition to a polysaccharide gum. for example starches of various origins and starch derivatives, e.g.
  • hydroxyethyl starch starch phosphate esters or starch acetates, or carboxymethylcellulose or its sodium salt, methyl, ethyl, hydroxyethyl, hydroxypropyl, hydroxypropyl-methyl or hydroxyethyl-methylcellulose or cellulose acetate.
  • Acrylic acid polymers suitable as polymeric thickeners are, for example, high molecular weight homopolymers of acrylic acid (INCI Carbomer) crosslinked with a polyalkenyl polyether, in particular an allyl ether of sucrose, pentaerythritol or propylene, which are also referred to as carboxyvinyl polymers.
  • a polyalkenyl polyether in particular an allyl ether of sucrose, pentaerythritol or propylene, which are also referred to as carboxyvinyl polymers.
  • Particularly suitable polymeric thickeners are the following acrylic acid copolymers: (i) Copolymers of two or more monomers from the group of acrylic acid, methacrylic acid and their simple esters, preferably formed with C 1-4 alkanols (INCI Acrylates Copolymer), which include the copolymers of methacrylic acid, butyl acrylate and methyl methacrylate ( CAS 25035-69-2 ) or butyl acrylate and methyl methacrylate ( CAS 25852-37-3 ); (ii) cross-linked high molecular weight acrylic acid copolymers, which include, for example, copolymers of C 10-30 alkyl acrylates cross-linked with an allyl ether of sucrose or pentaerythritol with one or more monomers from the group consisting of acrylic acid, methacrylic acid and their simple esters, preferably formed with C 1-4 alkanols (INCI Acrylates/C10-30 Alkyl Acrylate Crosspolymer).
  • the content of polymeric thickener is usually not more than 8 wt.%, preferably between 0.1 and 7 wt.%, particularly preferably between 0.5 and 6 wt.%, in particular between 1 and 5 wt.% and most preferably between 1.5 and 4 wt.%, for example between 2 and 2.5 wt.%, based on the total weight of the cleaning agent.
  • one or more dicarboxylic acids and/or their salts can be added, in particular a composition of sodium salts of adipic, succinic, and glutaric acid, such as is available under the trade name Sokalan® DSC. They are advantageously used in amounts of 0.1 to 8 wt.%, preferably 0.5 to 7 wt.%, in particular 1.3 to 6 wt.%, and particularly preferably 2 to 4 wt.%, based on the total weight of the cleaning agent.
  • the agent according to the invention is preferably free of dicarboxylic acid (salts).
  • auxiliaries and additives which are customary in particular in hand dishwashing detergents and cleaning agents for hard surfaces, in particular UV stabilizers, perfume, pearlescent agents (INCI opacifying agents; for example glycol distearate, e.g. Cutina ® AGS from Cognis, or mixtures containing this, e.g. Euperlane ® from Cognis, Cognis), dyes, corrosion inhibitors, preservatives (e.g.
  • Bronopol 2-bromo-2-nitropropane-1,3-diol
  • Bronopol also known as Bronopol ( CAS 52-51-7 ), which is commercially available from Boots, for example, as Myacide ® BT or as Boots Bronopol BT), organic salts, disinfectants, enzymes, pH adjusters and skin-feel-improving or skin-care additives (e.g.
  • dermatologically active substances such as vitamin A, vitamin B2, vitamin B12, vitamin C, vitamin E, D-panthenol, sericerin, collagen partial hydrolysate, various vegetable protein partial hydrolysates, protein hydrolysate fatty acid condensates, liposomes, cholesterol, vegetable and animal oils such as lecithin, soybean oil, etc., plant extracts such as aloe vera, azulene, witch hazel extracts, algae extracts, etc., allantoin, AHA complexes, glycerin, urea, quaternized hydroxyethylcellulose), in amounts of usually not more than 5% by weight, based on the total weight of the cleaning agent.
  • the agent according to the invention can contain one or more buffer substances (INCI buffering agents), usually in amounts of 0.001 to 5 wt.%, preferably 0.005 to 3 wt.%, in particular 0.01 to 2 wt.%, particularly preferably 0.05 to 1 wt.%, extremely preferably 0.1 to 0.5 wt.%, for example 0.2 wt.%.
  • buffer substances that are simultaneously complexing agents or even chelating agents (chelators, INCI chelating agents).
  • Particularly preferred buffer substances are citric acid or citrates, in particular sodium and potassium citrates, for example trisodium citrate ⁇ 2H2O and tripotassium citrate ⁇ H2O .
  • the agent according to the invention can be used for cleaning hard surfaces, in particular for manual cleaning of dishes.
  • the cleaning agent is manufactured using conventional and known methods and processes.
  • Another subject of the invention is the use of an agent described herein for manually cleaning dishes.
  • a further subject matter of the invention is a dosing bottle for hand dishwashing detergent, which contains the hand dishwashing detergent according to the invention.
  • Dosing bottles are preferably bottles that have a dosing opening diameter that is at least 5 times smaller, preferably at least 10 times smaller, than the overall diameter of the bottle.
  • the dosing opening is the opening through which the detergent exits the bottle.
  • the overall diameter is understood here to be the widest dimension in at least one spatial direction, wherein the at least one spatial direction is arranged substantially perpendicular to the vertical axis of the bottle.
  • the dosing opening is preferably smaller than 1 cm, or even smaller than 0.5 cm.
  • Example compositions were prepared: ⁇ u>Table 1: ⁇ /u> C1 E1 Amine oxide 1.9 2.6 Na-cumenesulfonate 1.5 1.6 Betaine 2.8 0.0 SLES 7.5 10.4 Amylase/Protease ⁇ 1% ⁇ 1% Fragrance Dye ⁇ 1% ⁇ 1% Water rest rest pH Viscosity C1 [mPa*s] Viscosity E1 [mPa*s] 9 545 142 8.5 785 185 8 1400 854 7.5 14300 3625 7 1980 1435 6.5 230 240 6 195 205
  • compositions C1 and E1 are listed in Table 1.
  • C1 is a comparative example according to the prior art.
  • C1 contains lower amounts of amine oxide compared to the total amount of surfactant, but contains amphoteric betaine as an additional surfactant.
  • E1 is a composition according to the invention. Betaines are not used in E1. The cleaning performance of E1 was not reduced compared to that of C1.
  • Table 2 shows the viscosities as a function of pH for both C1 and E1.
  • the viscosity of liquids is measured according to the invention at 20°C using a Brookfield DV-II+ Pro viscometer with spindle 31 at 0.6 rpm.
  • E1 has low viscosity values across the entire pH range.
  • C1 displays an extremely high viscosity, particularly in the preferred pH range of 7 to 8.
  • the pH range of 7 to 8 is preferred because the enzymes used can be stabilized particularly effectively in this range.
  • the extremely high viscosity values are disadvantageous for hand dishwashing detergents: In the case of C1, dosing using a dosing bottle is difficult. Detergent residues often remain in the dosing bottle because they cannot be completely removed from the bottle due to the high viscosity of the detergent. Furthermore, the viscous detergent C1 dissolves more slowly in water and is therefore less suitable for use as a hand dishwashing detergent.
  • the surfactant combination E1 according to the invention for hand dishwashing detergents can be produced more easily and cost-effectively than the three-component surfactant system C1 because it does not contain an amphoteric surfactant, without any reduction in cleaning performance.
  • the invention is based on the surprising discovery that at alkaline pH values, but especially at pH values between 7 and 8, the viscosity can be significantly reduced by using an amount of amine oxide surfactant based on the total amount of surfactant of at least 20 wt.% and containing no betaines.
  • the inventors have surprisingly discovered that in the case of surfactant combinations with amine oxides, the viscosity is particularly dependent on pH, provided alkaline pH values are present. It is assumed that the omission of betaines contributes to the reduction in viscosity.

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  • Detergent Compositions (AREA)

Claims (10)

  1. Détergent pour vaisselle à la main, comprenant :
    au moins une amylase et/ou une protéase
    au moins un tensioactif anionique ; et
    au moins un tensioactif d'aminoxyde, dans lequel
    la quantité de tensioactif d'aminoxyde est d'au moins 20 % en poids de la quantité totale de tensioactif, caractérisé en ce que la composition présente un facteur de viscosité allant de 0,1 à 50 mPas ; et dans lequel
    la viscosité est mesurée à 20 °C avec un viscosimètre Brookfield DV-II+ Pro avec un mobile 31, à 0,6 tr/min ; le facteur de viscosité est déterminé au moyen de la relation V = viscosité [mPa * s]/pH/100 ;
    le détergent pour vaisselle à la main comprend uniquement du sulfate d'éther et de l'aminoxyde comme tensioactifs ; et
    le pH va de 6,5 à 8,5.
  2. Détergent pour vaisselle à la main selon l'une des revendications précédentes, dans lequel la quantité de tensioactif d'aminoxyde est de 20 % à 50 % en poids de la quantité totale de tensioactif.
  3. Détergent pour vaisselle à la main selon l'une des revendications précédentes, dans lequel le pH va de 7 à 8,5.
  4. Détergent pour vaisselle à la main selon l'une des revendications précédentes, dans lequel le tensioactif anionique présente un degré d'alkoxylation de 2.
  5. Détergent pour vaisselle à la main selon la revendication précédente, dans lequel le tensioactif anionique est le sulfate d'éther laurique.
  6. Détergent pour vaisselle à la main selon l'une des revendications précédentes, dans lequel le détergent pour vaisselle à la main contient un agent hydrotrope.
  7. Détergent pour vaisselle à la main selon la revendication précédente, dans lequel l'agent hydrotrope comprend du cumène sulfonate de sodium.
  8. Détergent pour vaisselle à la main selon l'une des revendications précédentes, dans lequel le détergent pour vaisselle à la main présente un facteur de viscosité allant de 0,2 à 10 mPas, de manière particulièrement préférée de 0,2 à 5 mPas.
  9. Utilisation d'un détergent pour vaisselle à la main selon l'une des revendications précédentes pour le nettoyage manuel de la vaisselle.
  10. Flacon doseur pour détergent pour vaisselle à la main, contenant un détergent pour vaisselle à la main selon l'une des revendications précédentes.
EP18213646.5A 2018-12-18 2018-12-18 Régulation de la viscosité dans les agents de rinçage à la main Active EP3670637B1 (fr)

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EP18213646.5A EP3670637B1 (fr) 2018-12-18 2018-12-18 Régulation de la viscosité dans les agents de rinçage à la main
PL18213646.5T PL3670637T3 (pl) 2018-12-18 2018-12-18 Regulacja lepkości w środkach do ręcznego zmywania

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EP4098728B1 (fr) * 2021-06-02 2025-12-24 Henkel AG & Co. KGaA Procédé de fabrication de détergent pour le lavage manuel de la vaisselle à viscosité modifiée
EP4098727B1 (fr) * 2021-06-02 2024-01-03 Henkel AG & Co. KGaA Détergent à viscosité modifiée pour le lavage manuel de la vaisselle

Citations (2)

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Publication number Priority date Publication date Assignee Title
WO2014113559A1 (fr) * 2013-01-21 2014-07-24 The Procter & Gamble Company Détergent
WO2018017335A1 (fr) * 2016-07-22 2018-01-25 The Procter & Gamble Company Composition détergente pour lavage de vaisselle

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Publication number Priority date Publication date Assignee Title
CZ20296A3 (en) * 1993-07-23 1996-07-17 Procter & Gamble Thickened aqueous detergent with a surface-active agent having short chain and exhibiting enhanced cleansing capability
CA2629248A1 (fr) * 2005-11-15 2007-05-24 The Procter & Gamble Company Composition detergente de lavage liquide avec un agent tensioactif de sulfate ou sulfonate d'alkyle ou d'hydroxyalkyle d'origine naturelle et des agents tensioactifs de type oxyded'amine a chaine moyenne ramifiee
US9113077B2 (en) 2013-01-17 2015-08-18 Qualcomm Incorporated Orientation determination based on vanishing point computation
DE102013207933A1 (de) 2013-04-30 2014-10-30 Henkel Ag & Co. Kgaa Reinigungsmittel enthaltend Proteasen
DE102016202822A1 (de) * 2016-02-24 2017-08-24 Henkel Ag & Co. Kgaa Stabilisierte Reinigungsmittel

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014113559A1 (fr) * 2013-01-21 2014-07-24 The Procter & Gamble Company Détergent
WO2018017335A1 (fr) * 2016-07-22 2018-01-25 The Procter & Gamble Company Composition détergente pour lavage de vaisselle

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