EP4392522B1 - Composition de nettoyage concentrée - Google Patents

Composition de nettoyage concentrée

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Publication number
EP4392522B1
EP4392522B1 EP22769213.4A EP22769213A EP4392522B1 EP 4392522 B1 EP4392522 B1 EP 4392522B1 EP 22769213 A EP22769213 A EP 22769213A EP 4392522 B1 EP4392522 B1 EP 4392522B1
Authority
EP
European Patent Office
Prior art keywords
composition
water
alkyl
liquid detergent
viscosity
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
EP22769213.4A
Other languages
German (de)
English (en)
Other versions
EP4392522A1 (fr
Inventor
Ramitha Kalathil
Robert John Carswell
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
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Filing date
Publication date
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Publication of EP4392522A1 publication Critical patent/EP4392522A1/fr
Application granted granted Critical
Publication of EP4392522B1 publication Critical patent/EP4392522B1/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
    • C11D1/88—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
    • C11D1/66—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
    • C11D11/00—Special methods for preparing compositions containing mixtures of detergents
    • C11D11/0094—Process for making liquid detergent compositions, e.g. slurries, pastes or gels
    • 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
    • C11D17/04—Detergent materials or soaps characterised by their shape or physical properties combined with or containing other objects
    • C11D17/041—Compositions releasably affixed on a substrate or incorporated into a dispensing means
    • C11D17/042—Water soluble or water disintegrable containers or substrates containing cleaning compositions or additives for cleaning compositions
    • C11D17/043—Liquid or thixotropic (gel) 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
    • C11D3/16—Organic compounds
    • C11D3/20—Organic compounds containing oxygen
    • C11D3/2003—Alcohols; Phenols
    • C11D3/2041—Dihydric alcohols
    • C11D3/2044—Dihydric alcohols linear
    • 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
    • C11D3/2068—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
    • 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
    • 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
    • C11D1/04—Carboxylic acids or salts thereof
    • C11D1/06—Ether- or thioether carboxylic acids
    • 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
    • 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
    • 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
    • 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
    • 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
    • C11D1/92—Sulfobetaines ; Sulfitobetaines

Definitions

  • the present invention is in the field of cleaning compositions.
  • it relates to a concentrated liquid cleaning composition for providing a liquid detergent on dilution in water.
  • a cleaning composition in liquid format may contain detersive actives, sequestrants, bleaching agent, anti-foaming agent, enzyme, preservatives etc. Apart from these, it also contains significant amount of water. Preferably, water acts as carrier for said ingredients and helps in forming a homogenous composition. It also helps in providing a rheology suitable for dosing and applying the composition easily on the surfaces to be cleaned. However, high water content makes the product bulky. Thus, packaging of the product requires substantial amount of materials, such as, polyethylene, polyethylene terephthalate etc. The packaging materials are often sourced from non-renewable resources. In this regard there are continuous efforts to reduce such consumptions.
  • One of the ways to reduce such consumptions is to have a product in concentrated format.
  • a consumer is expected to dilute such product in water to form a liquid detergent and store it in a container.
  • Such products are often termed as 'Do it Yourself' or abbreviated as 'DiY', which implies that a consumer prepare their own detergent from a precursor/concentrate by diluting it in water.
  • the consumer doses an aliquot of the liquid detergent into to a bucket/bowl of water or in tub of a washing machine forming a wash liquor and use it for washing.
  • same product may be available in three forms, namely, concentrate, liquid detergent and wash liquor depending on extent of dilution. Typically, they vary in detersive content.
  • wash liquor typically lowest in detersive active content among the forms has viscosity like water and used immediately after preparation.
  • liquid detergent has attributes, such as, efficacy, appearance, sensory, stability etc., and they are supposed to be stored in a container for later use. It is expected that those attributes are such that consumers may relates the liquid detergent to conventional liquid detergents available in market.
  • Viscosity of liquid products is one of the key attributes. It can be correlated to pourability of the product. It also often relates to sensory of the product. For example, consumers relate high viscosity to high amount of detersive agent in the product, which drives manufactures to provide liquid detergents in viscous form. Thus, it is desired that the liquid detergent formed on dilution of a 'DiY' product has viscosity such that a consumer can relate it with conventional liquid detergents available in market.
  • WO 2014/173659 A1 describes a fluid cleaning composition comprising: (a) a surfactant combination comprising: (i) a synthetic surfactant; and (ii) a glycolipid biosurfactant which is present at a level in the range 10 to 95 %wt. of the total surfactant in said surfactant combination, and (b) a benefit agent suspended in said fluid cleaning composition characterised in that the benefit agent comprises an encapsulate.
  • WO 2020/126592 A1 relates to a liquid detergent composition
  • a liquid detergent composition comprising (a) from 8 to 30 %wt. of a surfactant system comprising: (i) a primary surfactant of the formula R1-(OR')n-O-SO3 -M+, wherein: R1 is saturated or unsaturated C8 to C16 alkyl chain; R' is ethylene; n is from 1 to 18; M+ is a suitable cation which provides charge neutrality selected from sodium, calcium, potassium and magnesium; and (ii) at least one secondary surfactant selected from amphoteric surfactants, alkyl sulphates, alkylbenzene sulphonate and derivatives; (b) from 0.001 to 0.2 wt percent of polyethylene oxide having molecular weight higher than 200,000 g/mol, (c) from 0.05 to 2 %wt.
  • a surfactant system comprising: (i) a primary surfactant of the formula R1-(OR
  • fatty acids comprising a saturated hydroxy fatty acids having 8 to 18 carbon atoms, saturated non-hydroxy fatty acids having 8 to 18 carbon atoms, or mixtures thereof; (d) 0.1 to 5 percent by weight of an inorganic salt selected from the group consisting of sodium chloride, magnesium sulphate, sodium sulphate and combinations thereof; and (e) water.
  • a concentrated cleaning composition comprising a combination of a rhamnolipid, a hydrotrope and a water-soluble inorganic salt provides a liquid detergent on dilution, which have a viscosity similar to that of the conventional liquid detergents.
  • the present invention provides a concentrated liquid cleaning composition for forming a liquid detergent on dilution in water comprising:
  • the present invention provides a unit dose product for forming a liquid detergent on dissolution in water comprising a composition according to the first aspect contained in a water-soluble pouch.
  • the present invention provides a liquid detergent obtained by diluting a concentrated liquid composition according to the first aspect in water, wherein the liquid detergent has a viscosity in the range 1000 mPa.S to 2500 mPa.S at 20 S-1 shear rate, 25°C.
  • the present invention provides a process for making a liquid detergent comprising steps of diluting a composition according to the first aspect in water; wherein the ratio of the composition to water is in range 1:1 to 1:10 by weight.
  • any feature of one aspect of the present invention may be utilized in any other aspect of the invention.
  • the word “comprising” is intended to mean “including” but not necessarily “consisting of” or “composed of.” In other words, the listed steps or options need not be exhaustive.
  • Numerical ranges expressed in the format “ x to y” are understood to include x and y. When for a specific feature multiple preferred ranges are described in the format “x to y", it is understood that all ranges combining the different endpoints are also contemplated.
  • amounts as used herein are expressed in percentage by weight based on total weight of the composition and is abbreviated as "wt%”. The use of any and all examples or exemplary language e.g. "such as” provided herein is intended merely to better illuminate the invention and does not in any way limit the scope of the invention otherwise claimed.
  • Room temperature is defined as a temperature of about 25° Celsius.
  • a concentrated composition for forming a liquid detergent on dilution in water comprising:
  • the composition comprises anionic surfactant.
  • the anionic surfactant is selected form alkyl sulphate, alky ether sulphate, alkyl benzene sulphonate and combinations thereof.
  • the anionic surfactant may comprise alkyl ether sulphate having formula: (R 1 -(OR') n -O-SO 3 - ) x M x+ , wherein: R 1 is saturated or unsaturated C 8 to C 16 , preferably C 12 to C 14 alkyl chain; preferably, R 1 is a saturated C 8 to C 16 , more preferably a saturated C 12 to C 14 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 1 or 2.
  • M x+ is a suitable cation which provides charge neutrality, preferably sodium, calcium, potassium, or magnesium, more preferably a sodium cation.
  • Organic counterions such as monoisopropylamine (MIPA), monoisopropanolamine, triisopropanolamine, ammonium, monoethanolamine, (MEA), diethanolamine (DEA), and triethanolamine (TEA) may also be employed.
  • Preferred alkyl ether sulphate is sodium lauryl ether sulphate having 1 to 3 ethylene oxide units per molecule, more preferred sodium lauryl ether sulphate having 1 to 2 ethylene oxide units per molecule.
  • the anionic surfactant comprises alkyl sulphate.
  • the alkyl sulphate is primary or secondary alkyl sulphate having C10 to C18 alkyl chain.
  • alkyl sulphates include sodium lauryl sulphate, ammonium lauryl sulphate, diethanolamine (DEA) lauryl sulphate.
  • the composition comprises 10 to 50 wt% of the anionic surfactant.
  • the composition comprises 12 to 48 wt%, more preferably 15 to 45 wt%, most preferably 20 to 40 wt% of the anionic surfactant.
  • the rhamnolipid in the present context includes mono-rhamnolipids and di-rhamnolipids.
  • Rhamnolipid in combination with the hydrotrope and the water-soluble inorganic salt in the composition provide desired viscosity profile in composition as well as in the liquid detergent formed on dilution. It is found the combination helps in reconstituting the viscosity of the liquid detergent forming on dilution in water.
  • the composition comprises 0.5 to 12 wt%, most preferably 1 to 10 wt% of the inorganic salt.
  • the composition is concentrated liquid composition. It is diluted in water to form a liquid detergent having one or more attributes similar the conventional liquid detergents available in market. Viscosity is one of such attributes.
  • the composition has different viscosity profile in neat form and diluted detergent.
  • 'neat' herein refers to the composition as it is and used here to distinguish the diluted liquid detergent from it.
  • the composition has a viscosity in the range 300 to 800 mPa.S at 20 S -1 shear rate and 25°C with cone geometry. It is observed that such viscosity range provide ease of pouring from the container. More preferably the viscosity of the composition is in the range 350 to 750 mPa.S, even more preferably 400 to 700 mPa.S and most preferably 450 to 650 mPa.S at 20 S -1 shear rate and 25°C in cone geometry (plate type rheometer)
  • viscosity of a conventional liquid detergent reduces on dilution in water.
  • a combination of the rhamnolipid, the hydrotrope and the water-soluble inorganic salt in the concentrated composition reconstitute viscosity in dilution and provide a liquid detergent.
  • the diluted liquid detergent has a viscosity of at least 1000 at 20 S -1 shear rate and 25°C with cone geometry, when diluted at a ratio 1:4 by weight in water.
  • the diluted liquid detergent has a viscosity in the range 1000 to 2500 mPa.S, more preferably 1050 to 2000 mPa.S, even more preferably 1100 to 1800 mPa.S and most preferably 1100 to 1500 mPa.S at 20 S -1 shear rate and 25°C with cone geometry ( plate type rheometer), when diluted at a ratio 1:4 by weight in water at 20 S -1 shear rate and 25°C, at dilution said above.
  • the composition has a pH in the range from 4 to 7.
  • the pH of the composition is in the range from 4.5 to 6.5, more preferably 5 to 6.
  • the composition comprises an organic acid or it's salt for adjusting the pH of the composition.
  • the composition may comprise water.
  • the composition comprises 5 to 70 wt% water.
  • the composition according to the present invention preferably is in concentred format, thus lesser the amount of water is preferable. More preferably the composition comprises 10 to 65 wt%, even more preferably 15 to 60 wt%, and most preferably 20 to 55 wt% of water.
  • the amount of water includes the water added in processing of the composition, as well as the water present in the raw materials in solution or dispersion form.
  • compositions may further comprise other ingredients which aid in the cleaning, sensory or product performance.
  • Compositions may contain various optional ingredients such as additional surfactants, thickeners, colorants, preservatives, polymers, anti-microbial agents, perfumes, pH adjusters, enzyme, antifoaming agents, sequestrants etc. based on the application.
  • the composition may further comprise a non-ionic surfactant.
  • suitable non-ionic surfactant 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
  • Lauryl alcohol condensed with 5, 7 and 9 moles of ethylene oxide (Laureth 5, Laureth 7 and Laureth 9).
  • Condensates of 2 to 30 moles of ethylene oxide with sorbitan mono- and tri-C10-C20 alkanoic acid esters having a HLB of 8 to 15 also may be employed as the non-ionic surfactant.
  • the composition is a concentrated liquid composition and may fall under the purview of 'Do it Yourself' or 'DiY' products, which implies that a consumer prepares their own detergent from a precursor/concentrate by diluting it in a particular ratio.
  • the consumer store the liquid detergent in a container and use it as and when required.
  • the present invention provides a unit dose product for forming a liquid detergent on dissolution in water comprising a composition according to the invention contained in a water-soluble pouch.
  • 'Unit dose' herein refers to a pre-defined amount of a composition suitable for single.
  • the composition in unit dose format may be packaged with a water-soluble film, such that, the consumer directly doses the product in a container and add a known amount of water.
  • the amount of water is mentioned on the pack of the product or may be provided as set of instructions.
  • the water-soluble film made of a water-soluble polymer.
  • polymer suitable for forming the water-soluble film examples include polyvinyl alcohol, polyacrylates, water-soluble acrylate copolymers, polyvinyl pyrrolidone, polyethyleneimine, pullulan, water-soluble natural polymers including, starch and its derivatives.
  • the composition filled in a container may also be possible to provide the composition filled in a container with sufficient empty space.
  • a consumer is expected to add water in the container up to a pre-set level and form the liquid detergent at their ease.
  • the container may be made of polymeric materials suitable for packaging application.
  • suitable polymers include polyesters, polyolefins, polyamides, polystyrene (PS), polyanhydrides, polyacrylates, poly hydroxy alkanoates, poly vinyl chloride, thermoplastic polyurethanes, polycarbonate (PC), polylactic acid (PLA), acrylonitrile/butadiene/styrene copolymer (ABS), styrene/acrylonitrile copolymer (SAN), polyoxymethylene (POM), biodegradable thermoplastics, starch-based thermoplastics, their derivatives, and combination thereof.
  • composition of the present invention may be formulated for hard surface cleaning application and forms a hard surface cleaning detergent on dilution in water.
  • Hard surface cleaning generally encompasses cleaning surfaces such as, kitchen utensils, dishes, kitchen platform, tabletop etc.
  • Dishwashing detergents are typically used for cleaning dishes and kitchen utensils. Dishwashing includes machine dishwashing and hand dishwashing.
  • the dishwash composition in addition to the said ingredients further comprises builders, fragrances, polymers, colorants, thickener etc.
  • the composition may be formulated for laundering and forms a laundry detergent on dilution.
  • laundering herein refers to treating or washing fabrics.
  • the composition may further comprise other ingredients such as, builders, sequestrants, soil release polymers, perfume, enzyme, fluorescer. preservative etc.
  • a liquid detergent obtained by diluting the concentrated liquid cleaning composition in water, wherein the liquid detergent has a viscosity in the range 1000 mPa.S to 2500 mPa.S at 20 S -1 shear rate, 25°C.
  • the liquid detergent has a viscosity in the range 1050 to 2000 mPa.S, more preferably 1100 to 1800 mPa.S and most preferably 1100 to 1500 mPa.S at 20 S -1 shear rate and 25°C, when measured in plate type rheometer with cone geometry.
  • the liquid detergent may be obtained by diluting in a ratio 1:1 to 1:10, more preferably 1:1 to 1:8, even more preferably 1:1 to 1:7 and most preferably 1:1 to 1:5 by weight.
  • a process for making a liquid detergent comprising steps of diluting the composition in water; wherein the ratio of the composition to water is in range 1:1 to 1:10 by weight. More preferably the ratio of the composition to water is in the range 1:1 to 1:8, even more preferably 1:1 to 1:7 and most preferably 1:1 to 1:5 by weight.
  • Ex 1 to 3 and A to E were prepared according to the recipes shown in table 2. Ex Ex 1 to 3 are within the scope of the present invention and Examples A to E are control examples (outside the scope of the present invention).
  • Ex 1 to 3 provide desired viscosity profile in neat as well as in diluted detergent. Whereas Ex A to E provide relatively high viscosity at neat, which may not be desired. Further, Ex A to E ether fail to reconstitute viscosity or does not build significant viscosity on dilution.
  • Viscosity of each composition were evaluated in two forms, namely, neat and diluted in water in 1:4 ratio by weight.
  • the term 'neat' herein refers to the composition used as is without dilution.
  • Viscosity of the compositions were measured using Modular Compact Rheometer, model number MCR 302 available with Rheocompass software from Anton Paar GmbH with plate type geometry, at 20 S-1 shear rate and 25°C with CP50 geometry. The results are summarized below: Table 5 Ex-1 Ex-F Ex-G mPa.S mPa.S mPa.S Viscosity @ neat 417 7751 1984 Viscosity @ dilution 1187 1041 2418
  • Ex 1 provides the desired viscosity profile for both neat and diluted detergent, whereas Ex- F and G provide very high viscosity in neat form. Further Ex-F does not reconstitute viscosity on dilution, and Ex-G is failed to achieve the desired viscosity value, thus may not be suitable for the invention.
  • Ex- H is an example as disclosed in the prior art document (example 6 of DE 196 48 439 A1 ). Viscosity was measured following the method described above. Table 6 Materials Ex-H(%w/w) Rhamnolipid 16 Coco fatty alcohol + 2EO sodium sulphate 10 Coco alkyl oligoglucoside 8 Coco fatty acid amido propyl betaine 2 Polyethylene glycol (Mw 400) 4 Ethanol 9 Water Up to 100 Viscosity @ neat (mPa.S) 20
  • Ex-H seem to be water thin liquid having a viscosity of 20 mPa.S at 20 S-1 shear rate and 25°C with CP50 geometry, which is far below compared to Ex-1 (according to the present invention).

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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)
  • Health & Medical Sciences (AREA)
  • Emergency Medicine (AREA)
  • Dispersion Chemistry (AREA)
  • Detergent Compositions (AREA)

Claims (14)

  1. Composition nettoyante liquide concentrée pour former un détergent liquide quand elle est diluée dans de l'eau, comprenant :
    a) 10 à 50 % en poids d'un tensioactif anionique choisi parmi un alkylsulfate, un alkyléthersulfate, un alkylbenzènesulfonate et leurs combinaisons ;
    b) 1 à 10 % en poids d'un tensioactif amphotère ;
    c) 1 à 20 % en poids d'un rhamnolipide ;
    d) 1 à 10 % en poids d'un hydrotrope ; et
    e) 0,1 à 15 % en poids d'un sel inorganique soluble dans l'eau,
    laquelle composition a une viscosité située dans la plage allant de 300 à 800 mPa.s et, lorsqu'elle est diluée dans de l'eau en un rapport en poids de 1/4, a une viscosité d'au moins 1 000 mPa.s à une vitesse de cisaillement de 20 s-1 et à 25°C avec un rhéomètre du type à géométrie plan-cône,
    dans laquelle le pH de la composition est situé dans la plage allant de 4 à 7,
    dans laquelle le rapport du rhamnolipide à l'hydrotrope est situé dans la plage allant de 1/1 à 6/1 en poids.
  2. Composition selon la revendication 1, dans laquelle le tensioactif anionique est choisi parmi un alkyléthersulfate, un alkylsulfate primaire et leurs combinaisons.
  3. Composition selon la revendication 1 ou 2, dans laquelle le tensioactif anionique est un lauryléthersulfate de sodium ayant 1 à 3 motifs oxyde d'éthylène par molécule.
  4. Composition selon l'une quelconque des revendications 1 à 3, dans laquelle le tensioactif amphotère est choisi parmi les oxydes d'alkylamine, les alkylbétaïnes, les alkylamidopropylbétaïnes, les alkylsulfobétaïnes, et leurs combinaisons.
  5. Composition selon la revendication 4, dans laquelle le tensioactif amphotère est le (coprah-yl)amidopropylbétaïne.
  6. Composition selon l'une quelconque des revendications 1 à 5, dans laquelle le rapport du tensioactif anionique au rhamnolipide est situé dans la plage allant de 1/1 à 10/1 en poids.
  7. Composition selon l'une quelconque des revendications 1 à 6, dans laquelle l'hydrotrope est choisi parmi le monopropylèneglycol, le dipropylèneglycol, le polyéthylèneglycol et leurs combinaisons.
  8. Composition selon la revendication 7, dans laquelle l'hydrotrope est le polyéthylèneglycol.
  9. Composition selon l'une quelconque des revendications 1 à 8, comprenant 0,5 à 12 % en poids d'un sel inorganique soluble dans l'eau.
  10. Composition selon l'une quelconque des revendications 1 à 9, dans laquelle le sel inorganique est choisi parmi le chlorure de sodium, le sulfate de sodium, le sulfate de magnésium et leurs combinaisons.
  11. Produit en dose unitaire pour former un détergent liquide quand il est dissous dans de l'eau, comprenant une composition selon l'une quelconque des revendications 1 à 10 contenue dans un sachet soluble dans l'eau.
  12. Détergent liquide obtenu par dilution dans de l'eau d'une composition liquide concentrée selon l'une quelconque des revendications 1 à 10, lequel détergent liquide a une viscosité située dans la plage allant de 1 000 mPa.s à 2 500 mPa.s à une vitesse de cisaillement de 20 s-1 et à 25°C avec un rhéomètre du type à géométrie plan-cône.
  13. Détergent liquide selon la revendication 12, dans lequel le rapport de la composition à l'eau est situé dans la plage allant de 1/1 à 1/10 en poids.
  14. Procédé pour préparer un détergent liquide, comprenant l'étape de dilution dans de l'eau d'une composition selon l'une quelconque des revendications 1 à 10 ; dans lequel le rapport de la composition à l'eau est situé dans la plage allant de 1/1 à 1/10 en poids.
EP22769213.4A 2021-08-26 2022-08-25 Composition de nettoyage concentrée Active EP4392522B1 (fr)

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KR20250116650A (ko) * 2022-11-30 2025-08-01 에보닉 오퍼레이션스 게엠베하 생물계면활성제를 포함하는 세제 구획 파우치
DE102023212910A1 (de) 2023-12-19 2025-06-26 Henkel Ag & Co. Kgaa Konzentrierte flüssige Wäschewaschmittelzusammensetzungen
WO2025131459A1 (fr) * 2023-12-20 2025-06-26 Unilever Ip Holdings B.V. Composition détergente liquide aqueuse comprenant un biotensioactif rhamnolipide
GB202409571D0 (en) * 2024-07-02 2024-08-14 Innospec Performance Chemicals Italia Srl Detergent composition

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DE19648439A1 (de) 1996-11-22 1998-05-28 Henkel Kgaa Verwendung von Mischungen aus Glycolipiden und Tensiden
JP2016526057A (ja) 2013-04-25 2016-09-01 ユニリーバー・ナームローゼ・ベンノートシヤープ 分配性および懸濁性の改良された洗浄組成物
EP3070155A1 (fr) * 2015-03-18 2016-09-21 Evonik Degussa GmbH Composition comprenant des peptidases et biotenseurs
PL3243896T3 (pl) * 2016-05-09 2020-03-31 The Procter And Gamble Company Kompozycja detergentowa zawierająca dekarboksylazę kwasu tłuszczowego
WO2019219303A1 (fr) * 2018-05-17 2019-11-21 Unilever Plc Composition de nettoyage
BR112021000774A2 (pt) * 2018-07-17 2021-04-13 Unilever Ip Holdings B.V. Uso de ramnolipídio em um sistema de tensoativo para detergentes para lavagem manual
CN113242902B (zh) 2018-12-17 2023-05-16 联合利华知识产权控股有限公司 包含脂肪酸和聚合物的液体手洗餐具制剂

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AR126878A1 (es) 2023-11-22
EP4392522A1 (fr) 2024-07-03
CN117858937A (zh) 2024-04-09

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