Compositions comprising sophorolipids and rhamnolipids and / or glucose lipids

Abstract

The present invention relates to compositions comprising a ratio of sophorolipids and rhamnolipids and / or glucose lipids, and uses of said compositions.

Description

Field of the Invention

[0001] The present invention relates to a composition comprising a certain ratio of sophorolipids and rhamnolipids and / or glucolipids. The present invention also relates to different uses, for example, the use of the composition for cleaning, especially for cleaning hard surfaces. Prior Art

[0002] Detergents whose main surfactant is based on renewable materials, such as sophorolipids, still have difficulty in removing fat stains, especially from hard surfaces such as tableware and cutlery.

[0003] In the prior art, in order to achieve satisfactory cleaning, a large amount of other non-bio-based surfactants are included in the composition.

[0004] EP1445302 discloses a detergent composition comprising at least one glycolipid biosurfactant and at least one non-glycolipid surfactant, characterized in that the at least one glycolipid biosurfactant and the at least one non-glycolipid surfactant are in the micellar phase.

[0005] An object of the present invention is to provide a composition with high cleaning ability, especially in the cleaning of hard surfaces, preferably for cleaning fat stains.

[0006] Description of the Invention Surprisingly, it has been found that a composition with sophorolipids as its main surfactant and combined with a smaller amount of rhamnolipids and / or glucolipids solves the problems of the present invention.

[0007] The present invention thus provides a composition as described in more detail in claim 1, which comprises: A) at least one sophorolipid, and B) at least one selected from rhamnolipids and glucolipids.

[0008] The present invention further provides a method for cleaning products as described in more detail in claim 8.

[0009] An advantage of the present invention is that the preparation foams strongly, that is, it generates a large foam volume.

[0010] A further advantage of the present invention is that the preparation generates a foam that is stable over time.

[0011] A further advantage of the present invention is that the preparation has good initial foaming behavior.

[0012] A further advantage of the present invention is that the preparation has good skin compatibility.

[0013] A further advantage of the present invention is that the preparation has good run-off behavior.

[0014] A further advantage of the invention is that the preparation has good drying behavior.

[0015] A further advantage of the invention is that the preparation also exhibits excellent foaming ability in the presence of oil stains.

[0016] Another advantage of the invention is that a strongly foaming preparation can be formulated without using surfactants prepared with ethylene oxide.

[0017] A further advantage is that the need for microbiologically active preservatives is reduced.

[0018] A further advantage of the composition according to the invention is its low viscosity and thus its simple processability in any desired aqueous surfactant system.

[0019] A further advantage of the composition according to the invention is their good skin and hair cleansing properties.

[0020] A further advantage of the composition according to the invention is their good make-up removing properties.

[0021] A further advantage of the composition according to the invention is their good lip balm removing properties.

[0022] A further advantage of the composition according to the invention is their good eye make-up removing properties.

[0023] A further advantage of the composition according to the invention is their excellent solubilizing effect on essential oils at low dosages.

[0024] A further advantage of the composition according to the invention is their mildness and good physiological compatibility.

[0025] A further advantage of the composition according to the invention is their good skin feel during and after washing.

[0026] A further advantage of the composition according to the invention is their good rinsability compared to other surfactant compositions.

[0027] A further advantage of the composition according to the invention is that they leave a smooth and soft skin feel after washing.

[0028] A further advantage of the mixture composition according to the invention is that they can be synthesized without petrochemical-based raw materials.

[0029] A further advantage of the mixture composition according to the invention is that they can be synthesized without key raw materials such as tropical oil.

[0030] A further advantage of the mixture compositions according to the invention is their excellent microbiological stability.

[0031] A further advantage of the mixture compositions according to the invention is that the properties of the hair, such as combability, softness, formability, gloss, manageability and detangling, can be improved by the use according to the invention.

[0032] Another advantage of the mixture compositions according to the invention is that particularly good foam creaminess can be achieved by the use according to the invention.

[0033] A further advantage of the mixture compositions according to the invention is that they reduce the combing force on wet and dry hair.

[0034] Another advantage of the mixture compositions according to the invention is that they can act as humectants (moisturizers) in cosmetic formulations.

[0035] One advantage of the present invention is that the compositions of the present invention have very good cleaning properties, especially in removing fatty stains from fabrics.

[0036] Another advantage of the present invention is that the compositions of the present invention can be very easily rinsed off from the already cleaned surface, preferably from the fibers.

[0037] A further advantage is that the compositions of the present invention support the stability of enzymes during storage.

[0038] One advantage of the present invention is that the compositions of the present invention provide a pure biodegradable detergent, all of whose components are of biological origin.

[0039] Another advantage of the present invention is that the formulation exhibits particularly good emulsifying and dispersing properties.

[0040] Another advantage of the present invention is that the compositions of the present invention provide a detergent using mild surfactants with low aquatic toxicity.

[0041] Another advantage of the present invention is that the compositions of the present invention can be formulated to be 100% biodegradable.

[0042] Another advantage is that the formulation exhibits excellent compatibility with all materials to be contacted in terms of stress corrosion.

[0043] Another advantage is that the formulation can be very easily diluted with water without the need for excessive stirring.

[0044] One advantage of the present invention is that the compositions according to the present invention have a positive odor profile.

[0045] Another advantage of the present invention is that the composition according to the present invention has improved color stability. The discoloration reaction may result from the Maillard reaction, which is a chemical reaction between proteins or amino acids and sugars. Fermentation-produced biosurfactants such as rhamnolipids, sophorolipids or Rubiwettin usually contain small amounts of reaction partners (proteins and sugars). These small concentrations are sufficient to change the color from light to dark.

[0046] A further advantage is that the composition according to the present invention has improved surface cleaning properties, especially for fatty stains.

[0047] Another advantage is that the composition according to the present invention has excellent foaming properties.

[0048] A further advantage is that the composition according to the present invention has reduced irritation to human skin.

[0049] Another advantage is the mildness and good physiological compatibility of the composition according to the present invention, especially characterized by high values in the red blood cell (RBC) test.

[0050] A further advantage is the good skin feel of the composition according to the present invention during and after washing.

[0051] Another advantage is that the composition according to the present invention leaves a smooth and soft skin feel after washing.

[0052] Another advantage is the excellent microbial stability of the composition according to the present invention.

[0053] Another advantage is that the composition according to the present invention has improved ability to dissolve oils and fats.

[0054] Another advantage is that the composition according to the present invention is easier to remove from the surface, so less water is required for the rinsing step.

[0055] Another advantage is that baby-friendly formulations can be developed using the composition according to the present invention.

[0056] Another advantage is that the composition according to the present invention has the benefit of streak-free cleaning when used for cleaning glass, mirrors, windshields and other sensitive surfaces.

[0057] Another advantage is that the composition according to the present invention can effectively clean even at lower temperatures.

[0058] The present invention thus provides a composition comprising A) at least one sophorolipid, and B) at least one selected from rhamnolipids and glucolipids, It is characterized in that the weight ratio of all sophorolipids, all rhamnolipids and glucolipids contained in the composition is in the range of 2:1 to 500:1, preferably 3:1 to 200:1, more preferably 5:1 to 100:1, most preferably 10:1 to 50:1, especially 20:1 to 40:1.

[0059] In the context of the present invention, "biosurfactant" is understood to mean all glycolipids produced by fermentation. The term "biosurfactant" also encompasses glycolipids chemically or enzymatically modified after fermentation, provided that the glycolipid structure is retained.

[0060] Raw materials that can be used for producing biosurfactants are carbohydrates, especially sugars such as glucose and / or lipophilic carbon sources such as fats, oils, partial glycerides, fatty acids, fatty alcohols, long-chain saturated or unsaturated hydrocarbons.

[0061] In the context of the present invention, the term "surfactant" is understood to mean an organic substance having surface-active properties, which is capable of reducing the surface tension of water to less than 45 mN / m at 20 °C and at a concentration of 0.5% by weight based on the total composition. The surface tension is measured at 20 °C by the DuNoüy ring method.

[0062] In the following cases where average values are stated, unless otherwise specified, these are number-average values.

[0063] Unless otherwise specified, percentages are data expressed as weight percentages.

[0064] Whenever measured values are stated hereinafter, unless otherwise specified, these are measured at a temperature of 25 °C and a pressure of 1013 mbar.

[0065] In the context of the present invention, the term "sophorolipid" is preferably understood to mean compounds of general formula (Ia) and (Ib) and their salts Formula Ia) Formula (Ib) where R 1SL = H or CO-CH3, R 2SL = H or CO-CH3, R 3SL = a divalent organic moiety containing 6 to 32 carbon atoms and which is unsubstituted or substituted by a hydroxyl functionality, unbranched and optionally contains 1 to 3 double or triple bonds, R 4SL= H, CH3 or a monovalent organic group containing 2 to 10 carbon atoms and which is unsubstituted or substituted by a hydroxyl function, unbranched and optionally containing 1 to 3 double or triple bonds, and nSL = 1 or 0.

[0066] The sophorolipids can be used according to the invention in their acid form or their lactone form.

[0067] Preferred compositions according to the invention comprise sophorolipids, wherein the weight ratio of the lactone form to the acid form is in the range from 20:80 to 80:20, particularly preferably in the range from 30:70 to 40:60.

[0068] For the determination of the content of sophorolipids in the acid or lactone form in the formulation, reference is made to EP1411111B1, page 8, paragraph

[0053] .

[0069] Preferably, the compositions according to the invention are characterized in that component B) is selected from rhamnolipids, in particular mono-rhamnolipids, di-rhamnolipids and poly-rhamnolipids, preferably mono-rhamnolipids and di-rhamnolipids.

[0070] The term "rhamnolipid" is preferably understood in the context of the present invention to particularly refer to compounds of general formula (II) and their salts, Formula (II) wherein mRL = 2, 1 or 0, nRL = 1 or 0, R 1RL and R 2RL = independently of one another identical or different organic residues having 2 to 24, preferably 5 to 13 carbon atoms, in particular optionally branched, optionally substituted, in particular hydroxyl-substituted, optionally unsaturated, in particular optionally mono-, di- or tri-unsaturated alkyl residues, preferably selected from the group consisting of pentenyl, heptenyl, nonenyl, undecenyl and tridecenyl and (CH2) o -CH3, where o = 1 to 23, preferably 4 to 12.

[0071] If nRL = 1, the glycosidic bond between the two rhamnose units is preferably of the α-configuration. The optically active carbon atom of the fatty acid is preferably present as the R-enantiomer (e.g. (R)-3-{(R)-3-[2-O-(α-L-rhamnopyranosyl)-α-L-rhamnopyranosyl]oxydecanoyl}oxydecanoate).

[0072] The term "di-rhamnolipid" is understood in the context of the present invention to mean a compound of general formula (II) or its salt in which nRL = 1.

[0073] The term "monorhamnolipid" is understood in the context of the present invention to mean a compound of general formula (II) in which nRL = 0 or a salt thereof.

[0074] The different rhamnolipids are abbreviated according to the following nomenclature: "di-RL-CXCY" is understood to mean a dirhamnolipid of general formula (II) in which one of the residues R 1RL and R 2RL is =(CH2) o -CH3, where o = X - 4, and the remaining residue R 1 or R 2 = (CH2) o -CH3, where o = Y - 4.

[0075] "mono-RL-CXCY" is understood to mean a monorhamnolipid of general formula (II) in which one of the residues R 1RL and R 2RL is =(CH2) o -CH3, where o = X - 4, and the remaining residue R 1RL or R 2RL = (CH2) o -CH3, where o = Y - 4.

[0076] Thus, the nomenclature used does not distinguish between "CXCY" and "CYCX".

[0077] For rhamnolipids in which mRL = 0, mono-RL-CX or di-RL-CX is used accordingly.

[0078] If one of the above-mentioned labels X and / or Y bears ":Z", this means that the corresponding residue R 1RL and / or R 2RL is equal to an unbranched, unsubstituted hydrocarbon residue having X - 3 or Y - 3 carbon atoms with Z double bonds.

[0079] Methods for preparing the relevant rhamnolipids are disclosed, for example, in EP2786743 and EP2787065.

[0080] The rhamnolipids suitable for use in the context of the present invention can also be obtained from Pseudomonas spp., in particular Pseudomonas aeruginosa bacteria ( Pseudomonas aeruginosaproduced by fermentation of Pseudomonas aeruginosa, which is preferably a non-genetically modified cell, a technique that was already disclosed in the 1980s, as described, for example, in EP0282942 and DE4127908. Rhamnolipids produced in Pseudomonas aeruginosa cells that have been improved by genetic modification for higher rhamnolipid titers can also be used in the context of the present invention; for example, Lei et al. disclosed such cells in Biotechnol Lett. June 2020; 42(6):997-1002.

[0081] Rhamnolipids produced by Pseudomonas aeruginosa are commercially available from Jeneil Biotech Inc., for example under the trade name Zonix; from Logos Technologies (technology acquired by Stepan), for example under the trade name NatSurFac; from Biotensidion GmbH, for example under the trade name Rhapynal; from AGAE technologies, for example under the names R90, R95, R95Md, R95Dd; from Locus Bio-Energy Solutions and from Shanghai Yusheng Industry Co., Ltd., for example under the trade name Bio-201 Glycolipids.

[0082] The present invention provides a composition preferably comprising rhamnolipids as component B), characterized in that component B) comprises 51% to 100% by weight, preferably 60% to 95% by weight, particularly preferably 80% to 90% by weight of mono-rhamnolipids, especially those of formula (I) where nRL = 0, where the weight percentages are based on the total sum of all rhamnolipids present.

[0083] The present invention further provides a composition preferably comprising rhamnolipids as component B), characterized in that component B) comprises 51% to 95% by weight, preferably 55% to 80% by weight, particularly preferably 60% to 70% by weight of di-RL-C10C10, where the weight percentages are based on the total sum of all rhamnolipids present.

[0084] A preferred composition according to the present invention is characterized in that the composition comprises rhamnolipids as component B) as described above, in an amount of 0.5% to 15% by weight, preferably 3% to 12% by weight, particularly preferably 5% to 10% by weight of di-RL-C10C12:1, where the weight percentages are based on the total sum of all rhamnolipids present.

[0085] A further preferred composition according to the invention is characterized in that the composition comprises rhamnolipid as described above as component B), in an amount of 0.5 to 25% by weight, preferably 3 to 15% by weight, particularly preferably 5 to 12% by weight of di-RL-C10C12, where the percentages by weight are based on the total sum of all rhamnolipids present.

[0086] A further preferred composition according to the invention is characterized in that the composition comprises rhamnolipid as described above as component B), in an amount of 0.1 to 25% by weight, preferably 2 to 10% by weight, particularly preferably 4 to 8% by weight of di-RL-C8C10, where the percentages by weight are based on the total sum of all rhamnolipids present.

[0087] A still further preferred composition according to the invention is characterized in that the composition comprises rhamnolipid as described above as component B), in an amount of 0.1 to 5% by weight, preferably 0.5 to 3% by weight, particularly preferably 0.5 to 2% by weight of mono-RL-C8C10 and / or, preferably and 0.1 to 5% by weight, preferably 0.5 to 3% by weight, particularly preferably 0.5 to 2% by weight of mono-RL-C10C10, where the percentages by weight are based on the total sum of all rhamnolipids present.

[0088] The invention alternatively preferably provides a composition comprising rhamnolipid as component B), characterized in that component B) comprises 51 to 100% by weight, preferably 60 to 95% by weight, particularly preferably 80 to 90% by weight of mono-rhamnolipids, in particular those of formula (II) where nRL = 0, where the percentages by weight are based on the total sum of all rhamnolipids present.

[0089] The invention alternatively preferably provides a composition comprising rhamnolipid as component B), characterized in that component B) comprises 10 to 50% by weight, preferably 20 to 40% by weight, particularly preferably 25 to 35% by weight of mono-RL-C10C10, and where the percentages by weight are based on the total sum of all rhamnolipids present.

[0090] An alternatively preferred composition according to the invention is preferably characterized in that the composition comprises rhamnolipid as described above as component B), in an amount of 10 wt% to 30 wt%, preferably 12 wt% to 25 wt%, particularly preferably 15 wt% to 20 wt% of di-RL-C10C10, where the weight percentages are based on the sum total of all rhamnolipids present.

[0091] Alternative preferred compositions according to the invention are characterized in that the composition comprises rhamnolipids as described above as component B), in an amount of 10 wt% to 30 wt%, preferably 12 wt% to 25 wt%, particularly preferably 15 wt% to 20 wt% of mono-RL-C8C10, where the weight percentages are based on the sum total of all rhamnolipids present.

[0092] Alternative preferred compositions according to the invention are characterized in that the composition comprises rhamnolipids as described above as component B), in an amount of 3 wt% to 25 wt%, preferably 5 wt% to 20 wt%, particularly preferably 10 wt% to 15 wt% of mono-RL-C10C12:1, where the weight percentages are based on the sum total of all rhamnolipids present.

[0093] Alternative preferred compositions according to the invention are characterized in that the composition comprises rhamnolipids as described above as component B), in an amount of 1 wt% to 15 wt%, preferably 2 wt% to 10 wt%, particularly preferably 3 wt% to 8 wt% of di-RL-C10C12, where the weight percentages are based on the sum total of all rhamnolipids present.

[0094] With respect to the present invention, the term "glucoselipid" is preferably understood to mean the compounds of general formula (III) and their salts, Formula (III) where mGL = 1 or 0, R 1GL and R 2GL = independently of one another are the same or different organic groups having 2 to 24 carbon atoms, in particular optionally branched, optionally substituted, in particular hydroxy-substituted, optionally unsaturated, in particular optionally mono-, di- or tri-unsaturated alkyl groups, preferably selected from the group consisting of pentenyl, heptenyl, nonenyl, undecenyl and tridecenyl and (CH2) o -CH3 groups, where o = 1 to 23, preferably 4 to 12.

[0095] Different glucoselipids are abbreviated according to the following nomenclature: “GL-CXCY” is understood to refer to a glucolipid of general formula (III), wherein the group R 1GL and R 2GL One of them =(CH2) o -CH3, where o = X-4, and the remaining group R 1GL or R 2GL = (CH2) o -CH3, where o = Y-4.

[0096] Thus, the nomenclature used does not distinguish between "CXCY" and "CYCX".

[0097] If one of the above-mentioned labels X and / or Y bears ":Z", this means that the corresponding group R 1GL and / or R 2GL = An unbranched, unsubstituted hydrocarbon group having X-3 or Y-3 carbon atoms and having Z double bonds.

[0098] The method for producing glucolipids can be carried out as described in WO2019154970.

[0099] The composition according to the invention preferably contains component A) at a concentration of 0.5% to 40% by weight, preferably 1% to 30% by weight, particularly preferably 2% to 20% by weight, based on the total composition by weight percentage.

[0100] The composition according to the invention preferably contains component B) at a concentration of 0.25% to 20% by weight, preferably 0.5% to 15% by weight, particularly preferably 1% to 1% by weight, based on the total composition by weight percentage.

[0101] The composition according to the invention contains components A) and B) in a total concentration of preferably 0.8% to 45% by weight, preferably 1.4% to 30% by weight, particularly preferably 3.0% to 20% by weight, where the weight percentages are based on the total composition.

[0102] A preferred composition according to the invention is characterized in that the pH of the composition at 25 °C is 2.0 to 12.0, preferably 3.0 to 11.0, more preferably 4.0 to 9.0, particularly 5.0 to 8.0, and especially preferably 5.6 to 7.4.

[0103] Unless otherwise specified, the "pH" with respect to the present invention is defined as the value measured for the relevant composition after stirring for 5 minutes at 25 °C using a pH electrode calibrated according to ISO 4316 (1977).

[0104] A preferred composition according to the invention is characterized in that it contains At least one surfactant, preferably selected from anionic surfactants, cationic surfactants, nonionic surfactants, semi-polar surfactants, and zwitterionic surfactants.

[0105] The optionally included surfactant is preferably included at up to 10% by weight of all surfactants included in the total composition.

[0106] Non-limiting examples of anionic surfactants include sulfates and sulfonates, in particular linear alkylbenzene sulfonates (LAS), isomers of LAS, branched alkylbenzene sulfonates (BABS), phenylalkane sulfonates, alpha-olefin sulfonates (AOS), olefin sulfonates, alkenesulfonates, alkane-2,3-diyl bis(sulfates), hydroxyalkane sulfonates and disulfonates, alkyl sulfates (AS) such as sodium dodecyl sulfate (SDS), fatty alcohol sulfates (FAS), primary alcohol sulfates (PAS), alcohol ether sulfates (AES or AEOS or FES, also known as alcohol ethoxysulfates or fatty alcohol ether sulfates), secondary alkane sulfonates (SAS), paraffin sulfonates (PS), ester sulfonates, sulfonated fatty acid glycerides, alpha-sulfo fatty acid methyl esters (alpha-SFME or SES), including methyl ester sulfonates (MES), alkyl or alkenyl succinates, dodecenyl / tetradecenyl succinic acid (DTSA), fatty acid derivatives of amino acids, diesters and monoesters of sulfosuccinic acid or soaps, and combinations thereof.

[0107] Non-limiting examples of cationic surfactants include alkyldimethyl ethanolammonium quat (ADMEAQ), cetyltrimethylammonium bromide (CTAB), dimethyldistearylammonium chloride (DSDMAC), and alkylbenzyl dimethylammonium, alkyl quaternary compounds, alkoxylated quaternary (AQA) compounds, and combinations thereof.

[0108] Non-limiting examples of nonionic surfactants include alcohol ethoxylates (AE or AEO), alcohol propoxylates, propoxylated fatty alcohols (PFA), alkoxylated fatty acid alkyl esters, such as ethoxylated and / or propoxylated fatty acid alkyl esters, alkylphenol ethoxylates (APE), nonylphenol ethoxylates (NPE), alkyl polyglycosides (APG), alkoxylated amines, fatty acid monoethanolamides (FAM), fatty acid diethanolamides (FADA), ethoxylated fatty acid monoethanolamides (EFAM), polyglycerol esters, glycerol esters, propoxylated fatty acid monoethanolamides (PFAM), polyhydroxyalkyl fatty acid amides, or N-acyl N-alkyl derivatives of glucosamine (glucamides, GA, or fatty acid glucamides, FAGA), and products available under the trade names SPAN and TWEEN, and combinations thereof.

[0109] Non-limiting examples of semi-polar surfactants include amine oxides (AO), such as alkyldimethylamine oxide, N-(cocoalkyl)-N,N-dimethylamine oxide, and N-(tallowalkyl)-N,N-bis(2-hydroxyethyl)amine oxide, fatty acid alkanolamides, and ethoxylated fatty acid alkanolamides, and combinations thereof.

[0110] Non-limiting examples of zwitterionic surfactants include betaines, alkyldimethylbetaines, sulfobetaines, and combinations thereof.

[0111] The composition according to the invention may further comprise one or more auxiliaries selected from the group consisting of: bleaching systems, hydrotropes, polymers, anti-redeposition aids, chelating agents, water softeners, fiber protectants, detergents, dye transfer inhibitors, fabric toners, deodorizing additives, blueing dyes, preservative systems, enzyme stabilizers such as boric acid, probiotics, solvents, viscosity improvers, pH regulators, and salts such as NaCl and Na2SO4.

[0112] The compositions contemplated herein are preferably detergent compositions. They can be in any convenient form, such as bars, homogeneous tablets, tablets having two or more layers, sachets having one or more compartments, conventional or compacted powders, granules, pastes, gels, or conventional, compressed or concentrated liquids. There are many forms of detergent formulations, such as layers (same or different phases), sachets, and forms for machine dosing units.

[0113] The sachet can be configured as single-compartment or multi-compartment. It can be of any form, shape, and material suitable for containing the composition, for example, not allowing the release of the composition from the sachet before water contact. The sachet is made of a water-soluble film surrounding an internal volume. The internal volume can be divided into compartments of the sachet. Preferred films are polymeric materials, preferably polymers formed into films or sheets. Preferred polymers, copolymers, or their derivatives are selected from polyacrylates and water-soluble acrylate copolymers, methylcellulose, carboxymethylcellulose, sodium dextrin, ethylcellulose, hydroxyethylcellulose, hydroxypropylmethylcellulose, maltodextrin, polymethacrylate, and most preferably polyvinyl alcohol copolymers and hydroxypropylmethylcellulose (HPMC). Preferably, the content of the polymer (e.g., PVA) in the film is at least about 60%. The preferred average molecular weight is typically from about 20,000 to about 150,000. The film can also be a blend composition comprising a hydrolyzable and water-soluble polymer blend, such as polylactic acid and polyvinyl alcohol (known by the commercial designation M8630 sold by Chris Craft In. Prod. Of Gary, Ind., US) plus plasticizers such as glycerol, ethylene glycol, propylene glycol, sorbitol, and mixtures thereof. The sachet can contain a solid laundry detergent composition or partial components and / or a liquid cleaning composition or partial components separated by a water-soluble film. The compartment for the liquid component can be compositionally different from the compartment containing the solid, see for example US20090011970.

[0114] The detergent ingredients can be physically separated from each other by compartments in a water-soluble bag or in different layers of a tablet. Negative storage interactions between the components can thereby be avoided. The different dissolution profiles of each compartment can also provide for delayed dissolution of the selected components in the wash solution.

[0115] The detergent composition according to the present invention can be in the form of a solid soap bar and is used for hand laundering of clothes, hard surface cleaning, fabrics, and / or textiles. The term "soap bar" includes laundry bars, soap bars, combobars, syndet bars, cleaning tablets, cleaning bars, and detergent bars. A laundry soap bar has a physical form that is solid at room temperature rather than liquid, gel, or powder. The term solid is defined as a physical form that does not change significantly over time, i.e., if a solid object (such as a laundry soap bar) is placed inside a container, the solid object does not change to fill the container in which it is located. The soap bar is typically a solid in the form of a soap bar, but can also be other solid shapes, such as round or oval.

[0116] The detergent composition according to the invention can be formulated as a granular detergent as described, for example, in WO09 / 092699, EP1705241, EP1382668, WO07 / 001262, US6472364, WO04 / 074419 or WO09 / 102854.

[0117] The invention further provides a method for cleaning an article, preferably a hard surface article, the surface of the skin or hair, said hard surface being preferably selected from glass, ceramics, plastics, tiles, linoleum, tableware and metals, which comprises the steps a) providing a composition and an article according to the invention, b) combining the provided composition and the provided article with water, c) maintaining the temperature of the water containing the provided composition and the provided article in the temperature range of 4 °C to 100 °C, preferably 10 °C to 65 °C, more preferably 15 °C to 45 °C, d) separating the article from the water, and optionally e) rinsing the article with additional water.

[0118] A preferred method according to the invention is characterized in that in step b) 0.1 g to 50 g, preferably 1.0 g to 20 g, more preferably 2.0 g to 10 g of the composition according to the invention are provided per kg of water.

[0119] The invention further provides the use of the composition according to the invention for cleaning the surface of articles, the skin and hair, preferably articles selected from hard surface articles, said hard surface being preferably selected from glass, ceramics, plastics, tiles, linoleum, tableware and metals.

[0120] Preferably, the use according to the invention is characterized in that fatty and / or oily stains are cleaned from the surface of the article, said article preferably being a ceramic utensil.

[0121] The invention further provides the use of the composition of the invention for foam stabilization.

[0122] The invention further provides the use of the composition according to the invention for improving the runoff behavior of water from hard surfaces, in particular surfaces selected from ceramics, glass and plastics.

[0123] The invention further provides the use of the composition according to the invention for improving the drying behavior of hard surfaces, in particular surfaces selected from ceramics, glass and plastics.

[0124] The invention further provides the use of the composition according to the invention for preventing scale spots, in particular on ceramics, glass and / or plastics.

[0125] Components A) and B) and combinations thereof that are preferably used in the methods and uses according to the invention are those preferably present in the compositions according to the invention as mentioned above.

[0126] The following cited examples illustrate the invention and are not intended to limit the invention to the embodiments specified in the examples, and the scope of application of the invention is obvious from the entire specification and claims. Brief description of the drawings: Figure 1 : Cleaning performance results of test compositions not according to the invention.

[0128] Figure 2 : Cleaning performance results of test compositions according to the invention.

[0129] Examples : Rhamnolipids are prepared as described in EP3023431.

[0130] The sophorolipids used were sophorolipids REWOFERM SL ONE from Evonik, which has a lactone to acid ratio of 40:60.

[0131] Glucosyl lipids are produced by fermentation according to Example 2 of WO2019154970.

[0132] Example 1: Cleaning performance of hard surface cleaning preparations This example demonstrates the synergistic effect of sophorolipids and rhamnolipids in providing the cleaning performance of hard surface cleaning preparations.

[0133] The exemplary preparations described in the following table were prepared according to the following protocol: First, a measured amount of water was introduced into a glass beaker of appropriate size. Subsequently, the other ingredients (except sodium hydroxide) were added at room temperature and with vigorous stirring. These ingredients were not added in a specific or uniform order as the order of addition to the solution was not critical. Finally, any remaining amount of water was introduced to ensure the desired concentration of the ingredients. All ingredients were mixed using a magnetic stirrer and the pH of the solution was adjusted to 7.5 by adding sodium hydroxide. The mixture was then stirred for 5 minutes to ensure a homogeneous solution. The exemplary compositions were easy to pour and stable at room temperature for a long time.

[0134] According to the above method, three preparations were prepared: Reference preparation 1, which contains ingredients such as rhamnolipids and was subsequently used as a control preparation, Reference preparation 2, which contains ingredients such as sophorolipids and was subsequently used as a second control preparation, Test preparation 1, which contains a mixture of rhamnolipids and sophorolipids and was subsequently used to present the synergistic effect of rhamnolipids and sophorolipids.

[0135] Composition of Test Preparation 1 and Reference Preparations evaluated in the cleaning performance test:

[0136] Subsequently, the cleaning performance of Test Preparation 1 was evaluated against the two reference preparations described above. The procedure for evaluating the cleaning performance is described in the following test protocol: The cleaning performance test was conducted according to an in-house test method, which was adapted from the recommendations of the German Cosmetic, Toiletry, Perfumery and Detergent Association (IKW): “IKW Recommendation for the Quality Assessment of the Product Performance of All-Purpose Cleaners 2014” (IKW Test Protocol). The principle of the test was to evaluate the detergency of the test preparations by assessing their effectiveness in removing stubborn dirt deposited on melamine tiles. White melamine tiles covered with a black stubborn dirt consisting of a mixture of fat and carbon black (hereafter referred to as Test Monitor) were purchased from Center for Testmaterials B.V. (available under the name DM-40 Tile). To ensure a high degree of reproducibility of the results, all Test Monitors belonged to the same production batch and were conditioned at 20 °C for 24 hours in a climate chamber before use.

[0137] To evaluate the cleaning performance of the prepared preparations, the Test Monitor was placed in a TQC Sheen washability tester (model AB5000) and locked in place. One Test Monitor was placed in the washability tester at a time, but ensuring that for each cleaning preparation, the test was conducted at least once at each of the four tracks of the washability tester. Subsequently, a dry 9 cm × 4.5 cm sponge was first wetted with tap water and excess water was wrung out of the sponge. Thereafter, 10 g of the test solution was loaded onto the sponge and the sponge was attached to the cleaning arm of the washability tester. Then the washability tester was started and controlled to provide 35 cleaning cycles (i.e., 70 linear strokes) on the Test Monitor. The stroke speed was 20 cycles / minute and the test was conducted at room temperature. After 35 cleaning cycles were completed, the Test Monitor was removed from the Sheen tester, rinsed with tap water, and allowed to dry. The test was repeated several times, thus providing 5 replicates for each test composition.

[0138] Five panelists visually evaluated the treated test panels and were asked to rate the cleaning efficacy achieved by each composition. The panelists graded the cleaning efficacy on a scale of 0 to 10, where 0 represented no cleaning observed and 10 represented complete stain removal. For comparison, each panelist was provided with a new soiled test panel (representing no cleaning) and a completely clean test panel (representing a score of 10). Additionally, the panelists were provided with an evaluation template according to the IKW Test Protocol to enable a more accurate assessment of cleanliness. The scores for each test composition were summed and averaged, and the results are reported in the table below.

[0139] Cleaning performance results of the test compositions (average cleaning score, 0 – no cleaning, 10 – complete cleaning, and photos of exemplary test panels):

[0140] From the results reported in the table above, it is evident that the composition containing a mixture of rhamnolipid and sophorolipid provides cleaning performance results superior to those of Reference formulation 1. Additionally, it is worth mentioning that Reference formulation 2 failed to complete the above test because the test sponge could not wipe horizontally on the surface of the test panel but instead flipped and fell off the holder. Therefore, it is evident that rhamnolipid needs to be added to the hard surface cleaner formulation containing sophorolipid to enable the sponge to have sufficient ability to slide on the dirty surface. Compared with the cleaning formulation containing rhamnolipid as the sole surfactant, sophorolipid provides significant cleaning performance benefits to the cleaning formulation. Therefore, when considering the overall properties of the hard surface cleaning formulation, the above examples provide evidence of the synergistic effect of rhamnolipid and sophorolipid.

[0141] Example 2: Performance of a simple composition in cleaning lipstick from the skin The cleaning properties were determined by removing makeup from a simulated skin substrate such as VITRO - SKIN® (IMS) using a scrub abrasion and washability device. This method was designed to test the cleaning efficacy of aqueous surfactant solutions such as micellar water or facial toner, and can be used for types of makeup that can dry completely on the plate.

[0142] Procedure: Place a piece of VITRO-SKIN® (3 x 11 cm) in a desiccator (equipped with 295 g of water and 52 g of glycerol) for no more than 24 hours. After the VITRO-SKIN® is hydrated, apply a defined weight of 4 mg of lipstick (SUPER STAY 24H, Maybelline New York) to the sheet. Dry the lipstick for 1 hour. Fix the VITRO-SKIN® to a PMMA plate. Fix the plate in place and prepare 2.5 g of the corresponding test solution by diluting each test substance with water to 3 wt%. Apply each to a cotton pad and attach the cotton pad to the sponge of a sliding carriage. After positioning the sliding carriage, the experiment starts. Set the cycle, 1 cycle equals 1 forward and backward movement. Speed: 10 cycles per minute, 1 cycle covers 160 mm. Count the number of cycles required to remove all the lipstick, and the results are shown in Table 4.

[0143] Preparation of test solutions: Dilute all the test substances in Table 3 with water to a 3 wt% solution and adjust to pH 7.

[0144] Table 3: Prepare the following compositions:

[0145] Table 4: Obtain the following results

[0146] It can be seen immediately that the combination of these two biosurfactants achieves a synergistic effect.

Claims

1. A composition comprising A) at least one sophorolipid, and B) at least one selected from rhamnolipids and glucolipids, It is characterized in that wherein the weight ratio of all sophorolipids to all rhamnolipids and glucolipids comprised in the composition is in the range of 2:1 to 500:1, preferably 3:1 to 200:1, more preferably 5:1 to 100:1, most preferably 10:1 to 50:1, especially 20:1 to 40:

1.

2. The composition according to claim 1, characterized in that Component B) is selected from rhamnolipids.

3. The composition according to claim 1 or 2, characterized in that Component B) comprises 51% to 100% by weight, preferably 60% to 95% by weight, particularly preferably 80% to 90% by weight of mono-rhamnolipid, where the weight percentages are based on the total of all rhamnolipids present.

4. The composition according to at least one of the preceding claims, characterized in that It comprises component A) at a concentration of 0.5% to 40% by weight, preferably 1% to 30% by weight, particularly preferably 2% to 20% by weight, said weight percentages being based on the total composition.

5. The composition according to at least one of the preceding claims, characterized in that It comprises component B) at a concentration of 0.25% to 20% by weight, preferably 0.5% to 15% by weight, particularly preferably 1% to 10% by weight, said weight percentages being based on the total composition.

6. The composition according to at least one of the preceding claims, characterized in that It comprises in total preferably 0.8% to 45% by weight, preferably 1.4% to 30% by weight, particularly preferably 3.0% to 20% by weight of component A) and component B), where the weight percentages are based on the total composition.

7. The composition according to at least one of the preceding claims, characterized in that Its pH at 25 °C is 2.0 to 12.0, preferably 3.0 to 11.0, more preferably 4.0 to 9.0, especially 5.0 to 8.0, particularly preferably 5.6 to 7.

4.

8. A method for cleaning the surface of an article, comprising the steps a) providing a composition and an article according to the invention, b) combining the provided composition and the provided article with water, c) maintaining the temperature of the water comprising the provided composition and the provided article in the temperature range of 4 °C to 100 °C, preferably 10 °C to 65 °C, more preferably 15 °C to 45 °C, d) separating the article from the water, and optionally e) rinsing the article with additional water.

9. The method according to claim 8, wherein In step b), 0.1 g to 50 g, preferably 1.0 g to 20 g, more preferably 2.0 g to 10 g of the composition according to any one of claims 1 to 8 is provided per kg of water.

10. Use of the composition according to at least one of claims 1 to 7 for cleaning the surface of an article, preferably selected from hard surface articles, skin and hair, to remove fatty and / or oily stains from the surface of the article.

11. The use according to claim 10, wherein Remove fatty and / or oily stains from the surface of the article.

12. Use of the composition according to at least one of claims 1 to 7 for foam stabilization.

13. Use of the composition according to at least one of claims 1 to 7 for improving the runoff behavior of water from a hard surface.

14. Use of the composition according to at least one of claims 1 to 7 for improving the drying behavior of a hard surface.

Images