EP4536794A1 - Compositions détergentes liquides aqueuses pour le lavage de la vaisselle - Google Patents

Compositions détergentes liquides aqueuses pour le lavage de la vaisselle

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Publication number
EP4536794A1
EP4536794A1 EP23726982.4A EP23726982A EP4536794A1 EP 4536794 A1 EP4536794 A1 EP 4536794A1 EP 23726982 A EP23726982 A EP 23726982A EP 4536794 A1 EP4536794 A1 EP 4536794A1
Authority
EP
European Patent Office
Prior art keywords
surfactant
composition
composition according
cleaning
alkyl
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Withdrawn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
EP23726982.4A
Other languages
German (de)
English (en)
Inventor
Alexandre François BOUX DE CASSON
Robert John Carswell
Marco Antonio DISTASO
Letitia DOLLAMORE
Sukriti SINGH
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.)
Unilever Global IP Ltd
Unilever IP Holdings BV
Original Assignee
Unilever Global IP Ltd
Unilever IP Holdings BV
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 Unilever Global IP Ltd, Unilever IP Holdings BV filed Critical Unilever Global IP Ltd
Publication of EP4536794A1 publication Critical patent/EP4536794A1/fr
Withdrawn legal-status Critical Current

Links

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
    • C11D1/88—Ampholytes; Electroneutral compounds
    • C11D1/94—Mixtures with anionic, cationic or non-ionic 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
    • C11D1/22—Sulfonic acids or sulfuric acid esters; Salts thereof derived from aromatic 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
    • C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
    • C11D17/0008—Detergent materials or soaps characterised by their shape or physical properties aqueous liquid non soap compositions
    • 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
    • C11D3/02—Inorganic compounds ; Elemental compounds
    • C11D3/04—Water-soluble compounds
    • C11D3/046—Salts
    • 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

Definitions

  • Liquid aqueous dishwashing detergent compositions Liquid aqueous dishwashing detergent compositions
  • the present invention relates to liquid aqueous dishwashing detergent compositions, in particular liquid aqueous dishwashing detergent compositions comprising enzyme and anionic surfactant comprising alkyl benzene sulphonate, and a method and use comprising the same.
  • Household cleaning activities involve the use of a detergent product and water to rinse off the detergent product and finish the cleaning process. These activities are typically performed daily, often more than once a day, such as dish washing. That is, hard surface cleaning, dishwashing and other household cleaning activities are time consuming activities and, ideally, can be optimized when using products with excellent detergency and soil removal capacity.
  • a cleaning product often comprises a surfactant system containing different types of surfactant to provide for cleaning efficacy. Therefore, some cleaning products contain a main surfactant, sometimes referred to as primary surfactant, and co-surfactant, sometimes referred to as secondary surfactant.
  • Consumers are sensitive to product appeal like for example visual cues when using a cleaning product like a hand dishwash product.
  • One of the more prominent visual cues is foam formation when cleaning as the amount of foam is seen as an indicator of cleaning performance. More foam is interpretated as more cleaning power.
  • Anionic surfactants are often used to provide an adequate foam profile, like for example alkyl benzene sulphonates.
  • consumers are also sensitive to product appearance. Some consumers prefer clear and transparent product formulations. Over time, e.g. upon storage, product appearance may change and a clear and transparent product may for example develop sediment and/or become cloudy. The same may happen as a result of temperature changes.
  • cleaning actives like e.g. cleaning polymers may be added.
  • An example of such a cleaning polymer is PEG 45-M, a polyethylene glycol polymer.
  • PEG 45-M a polyethylene glycol polymer.
  • some consumers prefer cleaning products with a good environmental profile. That is, they prefer products that are ‘eco-friendly’ and have less or no impact on the environment when the product is used but also when the product is manufactured.
  • cleaning products on the market that claim to be ‘eco-friendly’ or ‘natural’, but it is not always easy for consumers to understand what those positive terms really stand for.
  • some consumers still associate ‘eco-friendly’ cleaning products with less efficacious cleaning products.
  • Cleaning actives that by some consumers are recognized as ‘eco-friendly’ include enzymes. Enzymes as cleaning actives are sometimes referred to as detersive enzymes. An example of such an enzyme is amylase that assists with starch removal from dishes and cookware. When including enzymes in dishwashing compositions formulators have to consider the stability of the enzyme in the hand dishwash composition upon storage and upon use. WO 97/36977 (P&G) suggests that it is well known that surfactant can deactivate amylase. Others have suggested that enzyme stability is especially susceptible to the presence of alkyl benzene sulphonate surfactant. To stabilize the enzyme, so-called enzyme stabilisers are often used.
  • liquid aqueous dishwashing detergent compositions may comprise both enzymes and alkyl benzene sulphonate anionic surfactant without compromising the stability of the enzyme and without the need of additional enzyme stabilizing actives.
  • the invention relates to a liquid aqueous dishwashing detergent composition
  • a liquid aqueous dishwashing detergent composition comprising, a 1 to 50 wt% of a surfactant system comprising: i primary surfactant being anionic surfactant; and ii optionally secondary surfactant comprising amphoteric surfactant; b one or more enzymes; and c inorganic salt; wherein the composition comprises 0 to 0.5 wt% of enzyme stabilizer, the anionic surfactant comprises alkylbenzene sulphonate, and wherein the amount of alkylbenzene sulphonate is up to 22 wt% of the anionic surfactant calculated on total amount of anionic surfactant.
  • the invention further relates to a method of cleaning a hard surface using the composition of the invention, as well as the use thereof.
  • the composition of the present invention is an aqueous cleaning composition, that is to say, the composition comprises water.
  • the amount of water will depend on the desired concentration of the other ingredients.
  • the composition comprises 50 to 99 wt% water, more preferably not less than 60 wt%, still more preferably not less than 65 wt% but typically not more than 85 wt%, more preferably not more than 80 wt%, still more preferably not more than 75 wt%.
  • compositions of the present invention preferably have a viscosity in the range of 1000 to 2700 cps at 21 sec 1 measured on a Haake Viscometer (Models include VT181 , VT501 , VT550 or equivalent) with “cup” and “bob” geometry, equipped with a MV cup and a MV2 bob at a controlled temperature of 25°C.
  • a viscosity in the range of 1000 to 2700 cps at 21 sec 1 measured on a Haake Viscometer (Models include VT181 , VT501 , VT550 or equivalent) with “cup” and “bob” geometry, equipped with a MV cup and a MV2 bob at a controlled temperature of 25°C.
  • Thicker compositions are sometimes preferred by users as these may be easier to dose.
  • a thick product may also validate appropriate cleaning power perception with users of such compositions.
  • the composition of the present invention comprises a surfactant system.
  • the surfactant system comprises at least primary and optionally secondary surfactant wherein the weight ratio of primary surfactant to secondary surfactant preferably is in the range from 4:1 to 8:1 .
  • the weight ratio is from 4:1 to 7:1 , more preferably 5:1 to 7:1.
  • the surfactant system is present in the composition in a concentration of 1 to 50 wt%.
  • the amount of surfactant system is 5 to 40 wt%, more preferably 6 to 30 wt% and even more preferably 7 to 20 wt%.
  • 8 to 25 wt% 8 to 20 wt% or 8 to 15 wt%.
  • the primary surfactant is an anionic surfactant, wherein the anionic surfactant comprises alkylbenzene sulphonate, and wherein the amount of alkylbenzene sulphonate is up to 22 wt% of the anionic surfactant calculated on total amount of anionic surfactant. It will be understood that the total amount of anionic surfactant includes the amount of alkylbenzene sulphonate.
  • the primary surfactant comprises 3 wt% alkylbenzene sulphonate and 17 wt% alkyl ether sulphate, so a total amount of anionic surfactant of 20 wt%, the anionic surfactant comprises 15 wt% of alkylbenzene sulphonate calculated on total amount of anionic surfactant.
  • alkylbenzene sulphonate is often desired because of the cleaning ability of such compounds.
  • alkylbenzene sulphonate are known to sometimes destabilize enzymes. We have found that if the amount of alkylbenzene sulphonate is limited to up to 22 wt% of the anionic surfactant calculated on total amount of anionic surfactant the stability of the enzyme is not compromised without the need of additional enzyme stabilizing actives.
  • the amount of alkylbenzene sulphonate is from 0.5 to 22 wt%, more preferably 1 to 22 wt%, even more preferably 2 to 22 wt%, still even more preferably 3 to 21 wt% and even still more preferably 4 to 20 wt% of the anionic surfactant calculated on total amount of anionic surfactant.
  • the amount of alkylbenzene sulphonate may be 5 to 15 wt% or 6 to 10 wt% of the anionic surfactant calculated on total amount of anionic surfactant.
  • ABS Alkylbenzene sulphonates
  • Alkylbenzene sulphonates include water-soluble alkali metal salts of organic sulphonates having alkyl radicals typically containing from about 8 to about 22 carbon atoms, preferably 8 to 18 carbon atoms, still more preferably 12 to 15 carbon atoms and may be saturated or unsaturated. Examples include sodium salt of linear alkylbenzene sulphonate.
  • the composition comprises 0.5 to 12.5 wt%, more preferably 1 to 10 wt% and even more preferably 2 to 8 wt% alkylbenzene sulphonate.
  • composition comprises a surfactant of the formula (Formula I):
  • Ri is saturated or unsaturated Cs-C , preferably C12-C14 alkyl chain; preferably, R1 is a saturated Cs-C , more preferably a saturated C12-C14 alkyl chain;
  • R’ is ethylene; n is from 1 to 18, preferably from 1 to 15, more preferably from 1 to 10, still more preferably from 1 to 5; x is equal to 1 or 2;
  • M x+ is a suitable cation which provides charge neutrality, preferably sodium, calcium, potassium, or magnesium, more preferably a sodium cation.
  • the primary surfactant comprises sodium alkyl ether sulphate having 1 to 3 ethylene oxide units per molecule, more preferably, sodium alkyl ether sulphate having 1 to 2 ethylene oxide units per molecule.
  • a preferred alkyl moiety is lauryl.
  • the primary surfactant comprises at least 70 wt% calculated on total amount of primary surfactant, more preferably at least 80 wt%, even more preferably at least 90 wt% and still more preferably at least 95 wt% surfactant of Formula I.
  • the primary surfactant may optionally comprise alkyl sulphates, i.e. primary alcohol sulphates.
  • alkyl sulphates include sodium lauryl sulphate, ammonium lauryl sulphate and diethanolamine (DEA) lauryl sulphate.
  • DEA diethanolamine
  • Suitable examples include alkyl sulphates from synthetic origin with trade names Safol 23, Dobanol 23A or 23S, Lial 123 S, Alfol 1412S, Empicol LC3, Empicol 075SR.
  • Further suitable examples, and preferred when alkyl sulphates are present in the primary surfactant include alkyl sulphates commercially available from natural sources with trade names Galaxy 689, Galaxy 780, Galaxy 789, Galaxy 799 SP.
  • the primary surfactant may comprise other anionic surfactants such as rhamnolipids, being anionic biosurfactants.
  • Primary surfactant may be present in a concentration of 5 to 89 wt%, preferably 10 to 85 wt%, more preferably 15 to 80 wt%, even more preferably 20 to 70 wt% and still even more preferably 25 to 60 wt%, by total weight of the surfactant system.
  • the secondary surfactant is amphoteric surfactant, preferably comprising betaine.
  • the secondary surfactant comprises at least 70 wt%, calculated on total amount of secondary surfactant, of betaine. More preferably at least 80 wt%, even more preferably at least 90 wt% and still more preferably at least 95 wt%. It may be preferred that the secondary surfactant consists of betaine.
  • Secondary surfactant may be present in a concentration of 0.1 to 30 wt%, preferably 0.5 to 25 wt%, more preferably 1 to 20 wt%, even more preferably 2 to 15 wt% and still even more preferably 3 to 10 wt% by total weight of the surfactant system.
  • the amphoteric surfactant comprises betaine.
  • Suitable betaines include alkyl betaine, alkyl amido betaine, alkyl amidopropyl betaine, alkyl sulphobetaine and alkyl phosphobetaine, wherein the alkyl groups preferably have from 8 to 19 carbon atoms.
  • Examples include cocodimethyl sulphopropyl betaine, cetyl betaine, laurylamidopropyl betaine, caprylate/caprate betaine, capryl/capramidopropyl betaine, cocam idopropyl hydroxysultaine, cocobutyramido hydroxysultaine, and preferably lauryl betaine, cocam idopropyl betaine and sodium cocamphopropionate.
  • the betaine is cocam idopropyl betaine (CAPB).
  • the amphoteric surfactant may comprise an amine oxide surfactant.
  • Preferred amine oxides are alkyl dimethyl amine oxide and alkyl amido propyl dimethyl amine oxide, more preferably alkyl dimethyl amine oxide.
  • Especially preferred are lauryl dimethylamine oxide, coco dimethyl amine oxide and coco amido propyl dimethyl amine oxide.
  • the surfactant system of the present invention may comprise other types of surfactants in addition to the anionic surfactant of the primary surfactant and amphoteric surfactant of the secondary surfactant. More specifically the surfactant system may also comprise cationic and/or non-ionic surfactant.
  • Suitable non-ionic surfactants include the condensation products of a higher alcohol (e.g. an alkanol containing about 8 to 18 carbon atoms in a straight or branched chain configuration) condensed with about 5 to 30 moles of ethylene oxide, for example, lauryl or myristyl alcohol condensed with about 16 moles of ethylene oxide (EO), tridecanol condensed with about 6 moles of EO, myristyl alcohol condensed with about 10 moles of EO per mole of myristyl alcohol, the condensation product of EO with a cut of coconut fatty alcohol containing a mixture of fatty alcohols with alkyl chains varying from 10 to about 14 carbon atoms in length and wherein the condensate contains either about 6 moles of EO per mole of total alcohol or about 9 moles of EO per mole of alcohol and tallow alcohol ethoxylates containing 6 EO to 11 EO per mole of alcohol.
  • a higher alcohol e.g. an
  • Lauryl alcohol condensed with 5, 7 and 9 moles of ethylene oxide (Laureth 5, Laureth 7 and Laureth 9).
  • the non-ionic surfactant is selected from Laureth 5, Laureth 7 and Laureth 9, or mixtures thereof.
  • Condensates of 2 to 30 moles of ethylene oxide with sorbitan mono- and tri-C10-C20 alkanoic acid esters having a H LB of 8 to 15 also may be employed as the nonionic surfactant.
  • These surfactants are well known and are available from Imperial Chemical Industries under the Tween trade name. Suitable surfactants include polyoxyethylene (4) sorbitan monolaurate, polyoxyethylene (4) sorbitan monostearate, polyoxyethylene (20) sorbitan trioleate and polyoxyethylene (20) sorbitan tristearate.
  • alkyl polyglycosides are alkyl polyglycosides. These may be preferred as these have a high Renewable Carbon Index (RCI) and Biorenewable Carbon Index (BCI).
  • RCI Renewable Carbon Index
  • BCI Biorenewable Carbon Index
  • the non-ionic surfactant is in a concentration of 0.1 to 5 % by weight, preferably at least 0.3%, still more preferably at least 0.5% but preferably not more than 4%, more preferably not more than 3%, even more preferably not more than 2% by weight of the surfactant system.
  • BKC benzalkonium chloride
  • compositions according to the present invention comprise one or more enzymes which provide cleaning performance benefits.
  • Said enzymes include enzymes selected from cellulases, hemicellulases, peroxidases, proteases, gluco-amylases, amylases, lipases, cutinases, pectinases, xylanases, reductates, oxidases, phenoxidases, phenoloxidases, lipoxygenases, ligninases, pullulanases, tannases, pentosanases, malanases, beta-glucanases, arabinosidases, fatty acid decarboxylase, hydroxyperoxy fatty acid producing enzymes, oleic acid transforming enzyme, diol synthases, xylogluconase, nuclease enzyme, hexosaminidase and mixtures thereof.
  • the one or more enzymes are selected from amylase, protease, lipase and peroxidase. More preferably the composition comprises one or more enzymes selected from amylase and protease, such as compositions wherein the enzyme comprises amylase and compositions wherein the enzyme comprises protease. Preferred compositions comprise enzymes wherein the enzymes comprise amylase and protease.
  • An amylase enzyme can digest starch molecules present in soil residues into simpler short chain molecules (e.g., simple sugars) which are, of themselves, more readily desorbed from surfaces, solubilized or otherwise more easily removed by the cleaning solution containing the amylases.
  • An amylase included in compositions of the invention can be derived from a plant, an animal, or a microorganism.
  • the composition includes an amylase derived from a microorganism, such as a yeast, a mold, or a bacterium.
  • the composition may include an amylase derived from a Bacillus, such as B licheniformis, B. amyloliquefaciens, B. subtilis, or B. stearothermophilus.
  • the amylase can be purified or a component of a microbial extract, and either a wild type or variant (either chemical or recombinant).
  • the composition includes an alpha amylase (u-amylase).
  • amylase enzymes that may be employed in the composition include those sold under the trade names Rapidase by Gist-Brocades® (Netherlands), Termamyl®, Fungamyl®, Duramyl®, Amplify®, Amplify Prime®, Stainzyme® or Stainzyme Plus® by Novozymes, Opitmase® AA, Preferenz®, or Purastar® by DuPont, and the like.
  • a mixture of amylases can also be used.
  • Proteases can cleave complex, macromolecular protein structures present in soil residues into simpler short chain molecules which are, of themselves, more readily desorbed from surfaces, solubilized or otherwise more easily removed by the detergent composition containing the proteases.
  • Proteases are generally classified into serine proteases, thiol proteases, carboxyl proteases and metal proteases, depending upon their active sites. They may also be classified into three of microorganism-, plant- and animal-derived proteases, depending upon their origins. Microorganism-derived proteases are further classified into bacteria-, actinomycete-, mold- and yeast-derived proteases. Any suitable protease may be included in the detergent composition of the present invention.
  • the protease included in the composition can be derived from a plant, an animal, or a microorganism.
  • the composition includes a protease derived from a microorganism, such as a yeast, a mold, or a bacterium.
  • the composition may include a serine protease, e.g., derived from a strain of Bacillus such as Bacillus subtilis or Bacillus licheniformis. These proteases can include native and recombinant subtilisins.
  • the protease can be purified or a component of a microbial extract, and either a wild IO type or variant (either chemical or recombinant.
  • proteases examples include those sold under the trade names Alcalase®, Savinase® (e.g., Savinase® 15 Ultra 16L), Primase®, Durazym®, Esperase®, Coronase®, Blaze®, Liquanase®, Progress Uno®, Lavergy Pro®, Maxatase®, Maxacai®, Maxapem®, Opticlean®, Optimase® PR, Effectenz®, Purafect®, and Purafect® OX. Mixtures of different protease enzymes may also be incorporated in the composition.
  • Savinase® e.g., Savinase® 15 Ultra 16L
  • Primase® Durazym®
  • Esperase® Coronase®
  • Blaze® Liquanase®
  • Progress Uno® Lavergy Pro®
  • Maxatase® Maxacai®
  • Maxapem® Maxapem®
  • Opticlean® Opti
  • Examples of preferred enzymes are sold under the following trade names Purafect Prime®, Purafect®, Preferenz® (DuPont), Savinase®, Pectawash®, Mannaway®, Lipex ®, Lipoclean ®, Whitzyme ® Stainzyme®, Stainzyme Plus®, Natalase ®, Mannaway ®, Amplify ® Xpect ®, Celluclean ® (Novozymes), Biotouch (AB Enzymes), Lavergy ® (BASF).
  • the liquid detergent composition of the present invention comprises a cleaning polymer.
  • cleaning polymers include hydrophobically modified polymers, alkoxylated polyalkyleneimines, polyamines and polyethyleneoxides.
  • the cleaning polymer is a polyethylene oxide having a molecular weight higher than 200,000 g/mol.
  • the polyethylene oxide may be present as a single compound or a mixture of at least two polyethylene oxides having a molecular weight higher than 200,000 g/mol.
  • polyethylene oxide refers to polyethylene oxides (PEO) or high molecular weight polyethylene glycols (PEGs).
  • high molecular weight polyethylene glycol means a linear homopolymer derived from ethylene oxide and having a molecular weight of at least 200,000 g/mol.
  • the polyethylene oxide has a molecular weight of 300,000 g/mol to 4,000,000 g/mol, more preferably 500,000 g/mol to 3,000,000 g/mol, even more preferably 1,000,000 to 2,000,000 g/mol.
  • Suitable examples include, but are not limited to, polyethylene oxides commercially available with trade names WSR N-10, WSR N-80, WSR N-750, WSR 205, WSR 1105, WSR N-12K, WSR N-60K, WSR-301, WSR-303, WSR-308, all from The Dow Chemical
  • the cleaning polymer is present in an amount of 0.001 to 0.2 wt% based on the total weight of the composition. More preferably in an amount of 0.01 to 0.18, and even more preferably 0.1 to 0.15 wt%.
  • the composition comprises 0.1 to 5% by weight of an inorganic salt.
  • the inorganic salt is selected from the group consisting of sodium chloride, magnesium sulfate, sodium sulfate and combinations thereof.
  • Inorganic salts advantageously control the viscosity of the detergent compositions.
  • liquid detergent composition comprises 0.5 to 4%, more preferably 1.0 to 3%, even more preferably 1.5 to 2.5 % by weight of an inorganic salt. pH of the composition
  • the pH of the composition of the present invention is between 4 to 8.
  • the pH is between 4.5 and 7.5, preferably between 4.5 and 7, more preferably between 5 and 6.5 and even more preferably between 6 and 7.
  • compositions according to the invention may contain other ingredients which aid in the cleaning or sensory performance.
  • Compositions according to the invention can also contain, in addition to the ingredients already mentioned, various other optional ingredients such as thickeners, colorants, preservatives, fatty acids, anti-microbial agents, perfumes, pH adjusters, sequestrants, alkalinity agents and hydrotropes.
  • the composition is essentially free of enzyme stabilizers.
  • the composition comprises 0 to 0.5 wt% even more preferably 0 to 0.1 wt% of enzyme stabilizer.
  • the composition is free of enzyme stabilizers.
  • compositions do not contain large amounts of organic solvents, usually added to boost cleaning performance, that is from 0 to 1 wt% organic solvent.
  • the composition is free of organic solvents.
  • compositions of the present invention preferably comprise only limited amounts of silicones as these may not provide the required user characteristics for cleaning compositions of the present invention. Silicones may for example leave a ‘slippery’ feel to the hard surface. Therefore, the composition of the present invention preferably comprises from 0 to 1 wt%, more preferably from 0 to 0.5 wt% and still more preferably from 0 to 0.1 wt% silicones. Still more preferably the composition is free of silicones.
  • the composition may be used neat or diluted.
  • the composition is typically applied neat directly to the surface or on an implement like for example a sponge or cloth.
  • the composition is preferably diluted with water in a ratio of between 1:1 to 1 :100 and more preferably in a ratio of between 1 :1 to 1 :10.
  • composition may be packaged in the form of any commercially available bottle for storing the liquid.
  • the bottle containing the liquid can be of different sizes and shapes to accommodate different volumes of the liquid; preferably between 0.25 and 2 L, more preferably between 0.25 and 1.5 L or even between 0.25 and 1 L.
  • the bottle is preferably provided with a dispenser, which enables the consumer an easier mode of dispersion of the liquid. Spray or pump-dispensers may also be used.
  • the invention also relates to a method of cleaning a hard surface comprising the steps of: a. contacting the hard surface, optionally in diluted form, with the liquid detergent composition according to the present invention, and b. removing the detergent composition from the hard surface, optionally by rinsing with water.
  • the method can be performed manually (e.g. cleaning by hand) or in a cleaning device, such as an industrial or at home dishwashing machines.
  • a cleaning device such as an industrial or at home dishwashing machines.
  • the method of cleaning is a manual cleaning, more preferably hand dishwashing.
  • ‘Hard surface’ typically means utensils or kitchenware, kitchen worktops, kitchen floors, sinks and kitchen counter tops, floors and bathrooms.
  • the invention relates to the use of a liquid detergent composition of the invention for handwashing hard surfaces, preferably dishware.
  • the composition of the invention is applied onto a hard surface in neat or diluted form.
  • the composition may be applied by any known ways such as by using a cleaning implement, such as scrub, sponge paper, cloth, wipes or any other direct or indirect application.
  • the applied composition may be cleaned using a cleaning implement such as a scrub, sponge, paper, cloth or wipes with or without water, or rinsed off with water, optionally running water.
  • Detergent compositions A to C (not according to the invention) and 1 to 3 (according to the invention) were prepared.
  • the pH of the formulations was about 7 and the viscosity set to about 2000 mpa.s.
  • the compositions are included in Table 1.
  • amylase The stability of amylase was tested in each of the compositions of Table 1 for 2 amylases: Amplify® Prime 100L (ex Novozymes) and Preferenz® S210 (ex IFF). The enzyme was added at a concentration of 0.27 %w/v. The results are given in Table 2.
  • compositions were stored in incubators at 37°C for four weeks.
  • Reagent R1 ((4-(2-hydroxyethyl)-1- piperazineethanesulfonic acid) was added, followed by a 20pL diluted amylase sample.

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Detergent Compositions (AREA)

Abstract

La présente invention concerne une composition détergente liquide aqueuse pour le lavage de la vaisselle comprenant a) de 1 à 50 % en poids d'un système tensioactif comprenant : i) un tensioactif primaire qui est un tensioactif anionique ; et ii) facultativement un tensioactif secondaire comprenant un tensioactif amphotère ; b) une ou plusieurs enzymes ; et c) un sel inorganique ; la composition comprenant de 0 à 0,5 % en poids de stabilisant des enzymes, le tensioactif anionique comprenant du sulfonate d'alkylbenzène, et la quantité de sulfonate d'alkylbenzène représentant jusqu'à 22 % en poids du tensioactif anionique, calculée sur la quantité totale de tensioactif anionique. L'invention concerne en outre un procédé de nettoyage d'une surface dure à l'aide de la composition de l'invention, ainsi que son utilisation.
EP23726982.4A 2022-06-09 2023-05-15 Compositions détergentes liquides aqueuses pour le lavage de la vaisselle Withdrawn EP4536794A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP22177985 2022-06-09
PCT/EP2023/062953 WO2023237299A1 (fr) 2022-06-09 2023-05-15 Compositions détergentes liquides aqueuses pour le lavage de la vaisselle

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EP4536794A1 true EP4536794A1 (fr) 2025-04-16

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EP0798371A1 (fr) 1996-03-29 1997-10-01 The Procter & Gamble Company Compositions détergentes comprenant une amylase spécifique et des alkyl-polyglucosides tensioactifs
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