CN113242902B - Liquid hand dishwashing formulation comprising fatty acid and polymer - Google Patents
Liquid hand dishwashing formulation comprising fatty acid and polymer Download PDFInfo
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- CN113242902B CN113242902B CN201980083402.3A CN201980083402A CN113242902B CN 113242902 B CN113242902 B CN 113242902B CN 201980083402 A CN201980083402 A CN 201980083402A CN 113242902 B CN113242902 B CN 113242902B
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- 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
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- 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
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- 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
- C11D1/38—Cationic compounds
- C11D1/65—Mixtures of anionic with cationic compounds
- C11D1/652—Mixtures of anionic compounds with carboxylic amides or alkylol amides
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- 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
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- 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
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/20—Organic compounds containing oxygen
- C11D3/2075—Carboxylic acids-salts thereof
- C11D3/2086—Hydroxy carboxylic acids-salts thereof
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- 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
- C11D3/37—Polymers
- C11D3/3703—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C11D3/3707—Polyethers, e.g. polyalkyleneoxides
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- 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
- C11D1/14—Sulfonic acids or sulfuric acid esters; Salts thereof derived from aliphatic hydrocarbons or mono-alcohols
- C11D1/146—Sulfuric acid esters
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- 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
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- 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
- C11D1/38—Cationic compounds
- C11D1/52—Carboxylic amides, alkylolamides or imides or their condensation products with alkylene oxides
- C11D1/523—Carboxylic alkylolamides, or dialkylolamides, or hydroxycarboxylic amides (R1-CO-NR2R3), where R1, R2 or R3 contain one hydroxy group per alkyl group
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- 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
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- 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
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- 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
- C11D1/90—Betaines
Abstract
The present invention is in the field of hard surface cleaning compositions, and in particular liquid detergent compositions having improved emulsification and greasy soil removal from hard surfaces such as dishware. Accordingly, the present invention relates to a liquid detergent composition comprising: 8 to 30 wt% of a surfactant system comprising: i. r is a metal 1 ‑(OR’) n ‑O‑SO 3 ‑ M + Wherein: r is R 1 Is saturated or unsaturated C 8 ‑C 16 An alkyl chain; r' is ethylene; n is 1-18; m is M + Suitable cations selected from sodium, calcium, potassium and magnesium to provide charge neutrality; at least one second surfactant selected from the group consisting of: amphoteric surfactants, alkyl sulfates, alkylbenzenesulfonates, and derivatives; 0.001 to 0.2 wt% of polyethylene oxide having a molecular weight higher than 200,000g/mol, c.0.05 to 2 wt% of fatty acids comprising saturated hydroxy fatty acids having 8 to 18 carbon atoms, saturated non-hydroxy fatty acids having 8 to 18 carbon atoms, or mixtures thereof; 0.1 to 5 wt% of an inorganic salt selected from the group consisting of sodium chloride, magnesium sulfate, sodium sulfate, and combinations thereof; and e, water. The invention also relates to a method for cleaning hard surfaces using the composition according to the invention, and to the use thereof.
Description
Technical Field
The present invention is in the field of hard surface cleaning compositions, and in particular liquid detergent compositions having improved emulsification and greasy soil removal from hard surfaces such as dishware.
Background
Household cleaning activities include washing out the detergent product with detergent product and water and completing the cleaning process. These activities are typically performed daily, often more than once daily, for example washing dishes. 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 detergency.
The user typically correlates cleaning efficiency with foam formation during the main wash step. Thus, cleaning products with excellent foaming capability have high commercial relevance. Although it is well known that technically high foaming does not involve detergency, a product having reduced foaming capacity during main washing is not appreciated by the user even though it has better detergent and improved detergency. Therefore, it is desirable to obtain a product having both excellent emulsifying and detergency, and good foaming ability in main washing.
WO 2016/030226 relates to liquid detergent compositions having reduced suds formation during rinsing while maintaining sudsing profile in main wash. The examples describe compositions comprising: a surfactant system comprising sodium lauryl ether sulfate having 1 to 2 ethylene oxide units per molecule, and linear alkylbenzene sulfonate, a nonionic surfactant, a fatty acid, and water.
WO 2017/140472 describes dishwashing compositions which form foam which is easy to wash off during cleaning. The composition comprises an antifoam system, the composition comprising a combination of fatty acids and nonionic surfactants.
There remains a need for hard surface cleaning compositions having excellent greasy soil removal without compromising user satisfaction in sudsing formation in main wash.
Disclosure of Invention
The present inventors have developed liquid detergent compositions having improved sudsing ('fast sudsing') during the main wash step. Advantageously, it has been observed that the composition according to the invention has excellent emulsifying and greasy dirt removing capabilities. Unexpectedly, it has been found that the combination of fatty acids with high molecular weight polyethylene oxide improves the emulsifying capacity of liquid detergent compositions.
Accordingly, in a first aspect, the present invention relates to a liquid detergent composition comprising:
8 to 30 wt% of a surfactant system comprising:
i. (R) 1 -(OR’) n -O-SO 3 - ) x M x+ Wherein:
R 1 is saturated or unsaturated C 8 -C 16 An alkyl chain;
r' is ethylene;
n is 1-18;
x is 1 or 2;
M x+ suitable cations selected from sodium, calcium, potassium and magnesium to provide charge neutrality; and
at least one second surfactant selected from the group consisting of: amphoteric surfactants, alkyl sulfates, alkylbenzenesulfonates, and derivatives;
0.001 to 0.2% by weight of polyethylene oxide having a molecular weight of more than 200,000g/mol,
0.05 to 2 wt% fatty acids comprising saturated hydroxy fatty acids having 8 to 18 carbon atoms, saturated non-hydroxy fatty acids having 8 to 18 carbon atoms, or mixtures thereof;
0.1 to 5 wt% of an inorganic salt selected from the group consisting of sodium chloride, magnesium sulfate, sodium sulfate, and combinations thereof; and
e. and (3) water.
In a second aspect, the present invention relates to a method of cleaning hard surfaces using the composition of the present invention, and uses thereof.
Detailed Description
In one aspect, the present invention relates to a liquid detergent composition comprising:
8 to 30 wt% of a surfactant system comprising:
i. (R) 1 -(OR’) n -O-SO 3 - ) x M x+ Wherein:
R 1 is saturated or unsaturated C 8 -C 16 An alkyl chain;
r' is ethylene;
n is 1-18;
x is 1 or 2;
M + suitable cations selected from sodium, calcium, potassium and magnesium to provide charge neutrality; and
at least one second surfactant selected from the group consisting of: amphoteric surfactants, alkyl sulfates, alkylbenzenesulfonates, and derivatives;
0.001 to 0.2% by weight of polyethylene oxide having a molecular weight of more than 200,000g/mol,
0.05 to 2 wt% fatty acids comprising saturated hydroxy fatty acids having 8 to 18 carbon atoms, saturated non-hydroxy fatty acids having 8 to 18 carbon atoms, or mixtures thereof;
0.1 to 5 wt% of an inorganic salt selected from the group consisting of sodium chloride, magnesium sulfate, sodium sulfate, and combinations thereof; and
e. and (3) water.
Surfactant system
The liquid detergent compositions of the present invention comprise a surfactant system. The surfactant system comprises at least one first and at least one second surfactant. The surfactant system may comprise other surfactants.
The surfactant system is present in the composition at a concentration of from 8 to 30%, preferably not less than 15%, more preferably not less than 18%, still more preferably not less than 20%, but generally not more than 28%, preferably not more than 27%, or even not more than 26% by weight of the composition.
A first surfactant
The first surfactant of the present invention is a surfactant of the formula:
(R 1 -(OR’) n -O-SO 3 - ) x M x+ wherein
R 1 Is saturated or unsaturated C 8 -C 16 Preferably C 12 -C 14 An alkyl chain; preferably, R 1 Is saturated C 8 -C 16 More preferably saturated C 12 -C 14 An alkyl chain;
r' is ethylene;
n is 1-18; more preferably 1 to 15, still more preferably 1 to 10, still more preferably 1 to 5.
X is 1 or 2.
M x+ Sodium, calcium, potassium or magnesium are preferred, and sodium cations are more preferred, in order to provide charge neutrality.
Preferably, the first surfactant is sodium lauryl ether sulfate having 1 to 3 ethylene oxide units per molecule, more preferably sodium lauryl ether sulfate having 1 to 2 ethylene oxide units per molecule.
The first surfactant may be present at a concentration of from 5 to 95%, preferably at least 10%, more preferably at least 12%, still more preferably at least 20%, but generally no more than 85%, preferably no more than 75%, more preferably no more than 65%, still more preferably no more than 55% by weight of the surfactant system.
A second surfactant
The second surfactant of the present invention may be selected from the group consisting of amphoteric surfactants, alkylbenzenesulfonates and derivatives; alkyl sulfates, or mixtures thereof. Thus, the second surfactant may comprise a mixture of an amphoteric surfactant with one of an alkylbenzene sulfonate and a derivative or an alkyl sulfate.
According to another embodiment, the second surfactant is selected from amphoteric surfactants, i.e. it does not comprise alkylbenzene sulphonates and derivatives, or alkyl sulphates. Amphoteric surfactants suitable for use in the present invention include alkyl amine oxides, alkyl betaines, alkyl amidopropyl betaines, alkyl sulfobetaines (sulfobetaines), alkyl glycinates, alkyl carboxyglycinates, alkyl amphopropionates, alkyl amidopropyl hydroxysulfobetaines, acyl taurates, and acyl glutamates wherein the alkyl and acyl groups have from 8 to 19 carbon atoms. Examples include lauryl amine oxide, coco dimethyl sulfopropyl betaine, preferably lauryl betaine, cocoamidopropyl betaine and cocoamphoacetate sodium.
According to any of the above embodiments, the amphoteric surfactant is selected from cocamidopropyl betaine (CAPB), cocamidopropyl amine oxide (cap ao), cocodiethanolamide (CDEA), and Cocomonoethanolamide (CMEA), or mixtures thereof. More preferably, the amphoteric surfactant is cocamidopropyl betaine.
When present, the concentration of the amphoteric surfactant is from 0.1 to 20%, preferably at least 0.5%, more preferably at least 3%, still more preferably at least 6% or even more preferably at least 8%, but generally no more than 18%, preferably no more than 16%, more preferably no more than 13%, still more preferably no more than 10% by weight of the surfactant system.
Preferably, the ratio of amphoteric surfactant to first surfactant is from 1:10 to 1:3, preferably from 1:8 to 1:5, alone or in combination with another secondary surfactant.
According to yet another embodiment, the second surfactant is selected from alkylbenzenesulfonates and derivatives; alkyl sulfates or mixtures thereof (i.e., they do not contain amphoteric surfactants). Alkylbenzenesulfonates and derivatives include water-soluble alkali metal salts of organic sulfonic acids having an alkyl group which typically contains from about 8 to about 22 carbon atoms, preferably from 8 to 18 carbon atoms, still more preferably from 12 to 15 carbon atoms, and may be unsaturated. Examples include the sodium salt of linear alkylbenzene sulfonic acid, the sodium salt of alkyltoluene sulfonic acid, the sodium salt of alkylxylene sulfonic acid, the sodium salt of alkylphenol sulfonic acid, the sodium salt of alkylnaphthalene sulfonic acid, ammonium dipentyl naphthalene sulfonate and sodium dinonyl naphthalene sulfonate, and mixtures with olefin sulfonates. Examples of alkyl sulfates include sodium lauryl sulfate, ammonium lauryl sulfate, diethanolamine lauryl sulfate (DEA). Suitable examples also include commercially available alkyl sulfates from natural sources under the trade names Galaxy 689, galaxy 780, galaxy 789, galaxy 799SP, and those from synthetic sources under the trade names Safol 23, dobanol 23A or 23S, lial 123S, alfol 1412S, empimol LC3, empimol 075SR.
Preferably, the second surfactant is selected from sodium salts of alkylbenzene sulphonic acids and sodium lauryl sulphate, and/or linear or branched derivatives thereof. More preferably, the second surfactant is a sodium salt of linear alkylbenzene sulfonic acid.
According to any of the preceding embodiments, the second surfactant may be present at a concentration of from 5% to 95%, preferably at least 12%, more preferably at least 20%, still more preferably at least 30%, but generally no more than 85%, preferably no more than 75%, more preferably no more than 65%, still more preferably no more than 55% by weight of the surfactant system.
In a preferred embodiment, the ratio of the first surfactant to the second surfactant is in the range of 1:4 to 4:1, more preferably 1:3 to 3:1, even more preferably 1:2 to 2:1, most preferably 1:1.
Other surfactants
The surfactant system of the present invention may also comprise other surfactants common in the art, such as anionic, cationic, nonionic and/or mixtures thereof. Other surfactants may include alkyl polyglycosides and/or rhamnolipids.
Suitable nonionic surfactants include condensation products of higher alcohols (e.g., straight or branched chain configuration alkanols containing from about 8 to 18 carbon atoms) with from about 5 to 30 moles of ethylene oxide, such as condensation products of lauryl or myristyl alcohol with about 16 moles of Ethylene Oxide (EO), condensation products of tridecyl alcohol with about 6 moles of EO, condensation products of myristyl alcohol with about 10 moles of EO per mole of myristyl alcohol, condensation products of EO with fractions of coco fatty alcohol of mixtures of fatty alcohols containing alkyl chains of from 10 to about 14 carbon atoms, and wherein the condensate contains about 6 moles of EO per mole of total alcohol or about 9 moles of EO per mole of alcohol and tallow alcohol ethoxylate containing from 6 EO to 11 EO per mole of alcohol. Particular preference is given to lauryl alcohol (Laureth 5, laureth 7 and Laureth 9) condensed with 5, 7 or 9 mol of ethylene oxide.
Thus, in a preferred embodiment, the surfactant system comprises a nonionic surfactant 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-alkanoates having an HLB of 8 to 15 may also be used as nonionic surfactants. These surfactants are well known and are available under the trade name Tween from Imperial Chemical Industries. Suitable surfactants include polyoxyethylene (4) sorbitan monolaurate, polyoxyethylene (4) sorbitan monostearate, polyoxyethylene (20) sorbitan trioleate and polyoxyethylene (20) sorbitan tristearate.
When present, the concentration of nonionic surfactant is from 0.1 to 5% by weight, preferably at least 0.3%, still more preferably at least 0.5%, but preferably no more than 4%, more preferably no more than 3%, even more preferably no more than 2% by weight of the surfactant system.
Polyethylene oxide
The liquid detergent composition of the present invention comprises polyethylene oxide having a molecular weight of greater than 200,000 g/mol. The polyethylene oxide may be present as a single compound or as a mixture of at least two polyethylene oxides having a molecular weight of more than 200,000 g/mol.
"polyethylene oxide" as used herein refers to polyethylene oxide (PEO) or high molecular weight polyethylene glycol (PEG). "high molecular weight polyethylene glycol" as used herein refers to a linear homopolymer derived from ethylene oxide and having a molecular weight of at least 200,000 g/mol.
Preferably, the polyethylene oxide has a molecular weight of 300,000 to 4,000,000g/mol, more preferably 500,000 to 3,000,000g/mol, even more preferably 1,000,000 to 2,000,000 g/mol.
Suitable examples include, but are not limited to, commercially available polyethylene oxides having the 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 Company; polyethylene oxide (PEO), from MSE, beantown chemicals or Acros Organics; PEO 100K from Polysciences; PEO-1, PEO2, PEO-3, PEO-4, PEO-8, PEO15, PEO-18, PEO-57, PEO-29 from Sumitomo Seika Chemicals Ltd; or ALKOX polyethylene Glycol from Meisei Chemical Works.
The polyethylene oxide is present in an amount of 0.001 to 0.2 weight percent based on the total weight of the composition. Preferably, the polyethylene oxide is present in an amount of 0.01 to 0.18, more preferably 0.1 to 0.15 wt.%.
Fatty acid
The liquid detergent composition of the present invention comprises 0.05 to 2 wt% of fatty acids comprising at least one of saturated hydroxy fatty acids having 8 to 18 carbon atoms and/or saturated non-hydroxy fatty acids having 8 to 18 carbon atoms.
The fatty acid used in the present invention is a saturated fatty acid. Preferably, the fatty acid is selected from the group consisting of caprylic acid, lauric acid, myristic acid, palmitic acid, stearic acid, oleic acid, 12-hydroxystearic acid, and combinations thereof. More preferably, the fatty acid is selected from 12-hydroxystearic acid, lauric acid (C) 12 ) Stearic acid (C) 18 ) Palmitic acid (C) 16 ) And combinations thereof. Even more preferably, the fatty acid is 12-hydroxystearic acid, lauric acid (C 12 ) And stearic acid (C) 18 ) And combinations thereof. Still more preferably, the fatty acid is selected from lauric acid (C 12 ) Stearic acid (C) 18 ) Palmitic acid (C) 16 ) And combinations thereof, preferably lauric acid (C) 12 ) Stearic acid (C) 18 ) And combinations thereof.
Preferably, the fatty acid is present in the composition at a concentration of 0.1 to 1.8 wt% based on the total weight of the detergent composition. More preferably, the fatty acid is present in an amount of at least 0.4% by weight, preferably at least 0.6% by weight, but generally no more than 1.5%, more preferably no more than 1.3%, most preferably no more than 1.0% by weight of the composition.
In a preferred embodiment, the weight ratio of polyethylene oxide to fatty acid is in the range of 1:10 to 1:100, preferably in the range of 1:20 to 1:50.
Inorganic salt
The liquid detergent composition comprises 0.1 to 5 wt% of an inorganic salt selected from the group consisting of sodium chloride, magnesium sulfate, sodium sulfate, and combinations thereof. The inorganic salts advantageously control the viscosity of the detergent composition.
Preferably, the liquid detergent composition comprises from 0.5 to 4%, more preferably from 1.0 to 3%, even more preferably from 1.5 to 2.5% by weight of inorganic salt.
Water and its preparation method
The composition further comprises water. Preferably, 60 to 92%, more preferably not less than 62%, still more preferably not less than 65%, but generally not more than 85%, more preferably not more than 80%, still more preferably not more than 75% by weight of the composition.
Optional ingredients
The composition according to the invention may contain other ingredients that aid in cleaning or organoleptic properties. In addition to the ingredients already mentioned, the composition according to the invention may also contain various other optional ingredients, such as thickeners, colorants, preservatives, polymers, antimicrobial agents, fragrances, pH adjusting agents, chelating agents, alkaline agents and hydrotropes.
pH of the composition
The pH of the composition of the invention is between 4.0 and 8.0. Preferably, the pH is between 4.5 and 7.5, preferably between 4.5 and 7.0, more preferably between 5.5 and 6.5.
Product form
The composition may be used in pure or diluted form. For hard surface cleaning or for dishwashing purposes, the compositions are generally applied directly to the surface in pure form. When applied in diluted form, the composition is preferably diluted with water in a ratio between 1:1 and 1:10.
Both manual and machine dishwashing are contemplated in the context of the present invention.
The composition may be packaged in any commercially available bottle for storing liquids.
Bottles containing liquids may be of different sizes and shapes to hold different volumes of liquid; preferably between 0.25 and 2L, more preferably between 0.25 and 1.5L, or even between 0.25 and 1L. The bottle is preferably equipped with a dispenser which enables the user to dispense the liquid in an easier manner. Spray or pump dispensers may also be used.
Method
In a second aspect, the present invention relates to a method of cleaning a hard surface comprising the steps of:
a. contacting a hard surface with a liquid detergent composition according to the invention, optionally in diluted form, and
b. the detergent composition is removed from the hard surface, optionally by rinsing with water.
The method may be performed manually (e.g., by hand cleaning) or in a cleaning device, such as an industrial or household dishwasher. Preferably, the cleaning method is manual cleaning, more preferably hand dishwashing.
As used herein, "hard surface" generally refers to appliances or cookware, kitchen worktops, kitchen floors, sink and counter tops, floors and bathrooms.
In a further aspect, the present invention relates to the use of the liquid detergent composition of the present invention for hand washing hard surfaces, preferably dishware.
In any of the above methods, the compositions of the present invention are applied to a hard surface in pure or diluted form. The composition may be applied by any known means, for example by using a cleaning implement, such as a wipe (scrub), sponge paper, cloth, wipe or any other application, directly or indirectly. The applied composition may be cleaned using a cleaning implement such as a wipe, sponge, paper, cloth or wipe with or without water, or rinsed off with water, optionally running water.
The invention will now be illustrated by the following non-limiting examples.
Examples
Two different dishwashing base compositions (hence, referred to herein as base compositions BC1, BC 2) were prepared. The pH of the formulation was about pH 6. Formulations are included in table 1.
Table 1: formulation of base composition
| Composition of the components | BC1 | BC2 |
| Na-LAS (straight-chain alkylbenzene sulfonate) | 7.75 | |
| Sodium lauryl ether sulfate 1EO (100% active material basis) | 7.75 | 8.94 |
| Cocamidopropyl betaine (based on 100% active) | 1.56 | |
| Laureth 7 | 0.5 | 0.5 |
| Salt | 2.2 | 2.2 |
| Water and its preparation method | To 100 | To 100 |
For experimental purposes, different levels of fatty acid and polyethylene oxide were added to each base composition. Details are shown in tables 2 and 3. All formulations were subjected to an emulsion test.
Example 1: emulsion test
Different amounts of fatty acids ('FA') and polyethylene oxides ('Polyox') (in weight percent based on the total composition) are added to the base composition.
The emulsifying capacity of the composition was evaluated. 8.08g of the composition was poured into a 250ml beaker, to which 50ml of 10F.H. ("French hardness") water was added at 25℃and then stirred until dissolved. To this homogeneous mixture 44.56g of dyed sunflower oil (1.0 l of oil dyed with 0.045g of red dye) was added. The mixture was stirred at 1200RPM for 2 minutes and transferred to a 250ml glass cylinder.
The non-emulsified phase (in mm) was measured at 30 minutes from the start time (reading 1) and at 90 minutes from the start time (reading 2). The "E value" ("emulsion value") is calculated according to the following equation:
e value = [ (first reading+second reading) ×60]/2
The results of the 'E values' are listed in Table 2 below.
Table 2-different amounts of FA and polyox in BC1
1 Polyox：PEG 45-M.Mw:2,000,000g/mol(DOW，Sigma)
2 FA:1:1 ratio of stearic acid to lauric acid (KLK Oleo, godrej)
The lower the 'E value', the better the emulsification and oil removal. The results show better emulsification in compositions comprising different amounts of a combination of high molecular weight polyethylene oxide and fatty acid than compositions comprising only one of the components. The test was repeated with BC2 using 12-hydroxystearic acid (12 HSAc) as fatty acid. The results ('E-value') and the different amounts of 12HSAc and polyethylene oxide used in the test composition BC2 are shown in Table 3 below:
table 3-different amounts of FA and Polyox in BC2
1 Polyox：PEG 45-M.Mw:2,000,000g/mol(DOW，Sigma)
2 FA: 12-hydroxystearic acid (Vertellus).
Table 4-different amounts of FA and Polyox in BC2
1 Polyox：PEG 45-M.Mw:2,000,000g/mol(DOW，Sigma)
2 FA:1:1 ratio of stearic acid to lauric acid (KLK Oleo, godrej).
Also in BC2, the results show the improved effect of emulsification when fatty acids are used in combination with polyethylene oxide.
TABLE 5
TABLE 6
Claims (20)
1. A liquid detergent composition comprising:
8 to 30 wt% of a surfactant system comprising:
i. (R) 1 -(OR’) n -O-SO 3 - ) x M x+ Wherein:
R 1 is saturated or unsaturated C 8 -C 16 An alkyl chain;
r' is ethylene;
n is 1-18;
x is 1 or 2;
M x+ suitable cations selected from sodium, calcium, potassium and magnesium to provide charge neutrality; and
at least one second surfactant selected from the group consisting of: amphoteric surfactants, alkyl sulfates, alkyl benzene sulfonates, or mixtures thereof;
0.001 to 0.2% by weight of polyethylene oxide having a molecular weight of more than 200,000g/mol,
0.05 to 2 wt% fatty acids comprising saturated hydroxy fatty acids having 8 to 18 carbon atoms, saturated non-hydroxy fatty acids having 8 to 18 carbon atoms, or mixtures thereof;
0.1 to 5 wt% of an inorganic salt selected from the group consisting of sodium chloride, magnesium sulfate, sodium sulfate, and combinations thereof; and
e. and (3) water.
2. The composition of claim 1, wherein the first surfactant is sodium lauryl ether sulfate having 1 to 2 ethylene oxide units per molecule.
3. The composition of claim 1 or 2, wherein the second surfactant is sodium dodecyl sulfate or a sodium salt of linear alkylbenzene sulfonic acid.
4. The composition of claim 1 or 2, wherein the second surfactant is an amphoteric surfactant.
5. The composition of claim 1 or 2, wherein the second surfactant is selected from cocamidopropyl betaine, cocamidopropyl amine oxide, cocamidoethanamide, and cocamonoethanolamide, or a combination thereof.
6. The composition of claim 1 or 2, wherein the ratio of the first surfactant to the second surfactant is in the range of 1:4 to 4:1.
7. The composition of claim 1 or 2, wherein the polyethylene oxide has a molecular weight of 500,000g/mol to 3,000,000 g/mol.
8. The composition of claim 1 or 2, wherein the fatty acid is selected from the group consisting of caprylic acid, lauric acid, myristic acid, palmitic acid, stearic acid, oleic acid, 12-hydroxystearic acid, and combinations thereof.
9. The composition of claim 8, wherein the fatty acid is selected from stearic acid, lauric acid, palmitic acid, or a combination thereof.
10. The composition of claim 1 or 2, wherein the ratio of polyethylene oxide to fatty acid is in the range of 1:10 to 1:100.
11. The composition of claim 1 or 2, wherein the ratio of polyethylene oxide to fatty acid is in the range of 1:20 to 1:50.
12. The composition of claim 1 or 2, wherein the surfactant system further comprises from 0.1 to 5 wt% nonionic surfactant based on the total weight of the surfactant system.
13. The composition of claim 12, wherein the nonionic surfactant is selected from Laureth 5, laureth 7, laureth 9, and mixtures thereof.
14. The composition of claim 1 or 2, wherein the pH of the composition is in the range of 4 to 8.
15. A method of cleaning a hard surface comprising the steps of:
a. contacting the hard surface with the liquid detergent composition according to any one of claims 1 to 14, optionally in diluted form, and
b. the detergent composition is removed from the hard surface, optionally by rinsing with water.
16. The cleaning method of claim 15, wherein the hard surface is a dish.
17. The cleaning method according to claim 15 or 16, wherein the cleaning is dish washing.
18. The cleaning method according to claim 15 or 16, wherein the cleaning is manual dishwashing.
19. Use of the liquid detergent composition according to any one of claims 1 to 14 for hand washing hard surfaces.
20. Use of the liquid detergent composition according to any one of claims 1 to 14 for hand dishwashing.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP18213088 | 2018-12-17 | ||
| EP18213088.0 | 2018-12-17 | ||
| PCT/EP2019/084162 WO2020126592A1 (en) | 2018-12-17 | 2019-12-09 | Liquid hand dishwash formulation comprising fatty acids and polymer |
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| EP (1) | EP3898914B1 (en) |
| CN (1) | CN113242902B (en) |
| AR (1) | AR117349A1 (en) |
| BR (1) | BR112021011742A2 (en) |
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| EP4256015A1 (en) * | 2020-12-07 | 2023-10-11 | Unilever IP Holdings B.V. | A hard surface cleaning composition |
| CN116529347A (en) * | 2020-12-07 | 2023-08-01 | 联合利华知识产权控股有限公司 | Hard surface cleaning compositions |
| EP4256017A1 (en) * | 2020-12-07 | 2023-10-11 | Unilever IP Holdings B.V. | A hard surface cleaning composition |
| WO2023025884A1 (en) | 2021-08-26 | 2023-03-02 | Unilever Ip Holdings B.V. | A concentrated cleaning composition |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0009193A1 (en) * | 1978-09-16 | 1980-04-02 | Henkel Kommanditgesellschaft auf Aktien | Liquid cleanser for hard surfaces |
| WO2016030226A1 (en) * | 2014-08-29 | 2016-03-03 | Unilever N.V. | Liquid detergent composition |
| WO2017140472A1 (en) * | 2016-02-17 | 2017-08-24 | Unilever N.V. | Dishwash composition comprising rinse-activatable antifoam |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6583178B2 (en) * | 2001-05-11 | 2003-06-24 | Colgate Palmolive Company | Antibacterial liquid dish cleaning compositions having improved viscosity |
| US8110533B1 (en) * | 2010-09-28 | 2012-02-07 | Conopco, Inc. | Liquid soap compositions |
| EP2773736B1 (en) * | 2011-11-02 | 2018-10-10 | Henkel AG & Co. KGaA | Structured detergent or cleaning agent having a flow limit ii |
| WO2016050695A1 (en) * | 2014-10-02 | 2016-04-07 | Unilever N.V. | Hard surface cleaning composition |
| EP3383986B1 (en) * | 2015-12-02 | 2019-02-27 | Unilever N.V. | Hard surface cleaning composition |
-
2019
- 2019-12-09 EP EP19813570.9A patent/EP3898914B1/en active Active
- 2019-12-09 CN CN201980083402.3A patent/CN113242902B/en active Active
- 2019-12-09 BR BR112021011742-3A patent/BR112021011742A2/en unknown
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0009193A1 (en) * | 1978-09-16 | 1980-04-02 | Henkel Kommanditgesellschaft auf Aktien | Liquid cleanser for hard surfaces |
| WO2016030226A1 (en) * | 2014-08-29 | 2016-03-03 | Unilever N.V. | Liquid detergent composition |
| WO2017140472A1 (en) * | 2016-02-17 | 2017-08-24 | Unilever N.V. | Dishwash composition comprising rinse-activatable antifoam |
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| Publication number | Publication date |
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| CL2021001496A1 (en) | 2022-04-01 |
| EP3898914B1 (en) | 2022-03-23 |
| CN113242902A (en) | 2021-08-10 |
| BR112021011742A2 (en) | 2021-08-31 |
| EP3898914A1 (en) | 2021-10-27 |
| ZA202103827B (en) | 2023-01-25 |
| AR117349A1 (en) | 2021-07-28 |
| WO2020126592A1 (en) | 2020-06-25 |
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