Detergent compartment pouch comprising biosurfactant
By using polyvinyl alcohol water-soluble membranes and biosurfactants such as rhamnolipid in detergent compartment bags, the leachate and diffusion problems of water-soluble detergent bags are solved, and the integrity and storage stability of the bags are improved, ensuring safety and dye vibrancy are ensured, and resources are saved.
Patent Information
- Application Number
- CN202380081804.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2022-11-30
- Filing Date
- 2023-11-22
- Publication Date
- 2025-07-08
AI Technical Summary
The existing water-soluble detergent bags are prone to permeation, diffusion of liquid compositions, uneven dissolution, insufficient safety, and high resource consumption, which limits the types and efficiency of suitable detergent compositions.
Using water-soluble membranes containing polyvinyl alcohol and biosurfactants, especially rhamnolipids, are designed as detergent compartment bags to improve the water resistance and integrity of the membrane, reduce liquid diffusion, and ensure safety and storage stability.
Improved integrity and water resistance of detergent compartment bags, improved storage stability, saved packaging materials, ensured that the liquid composition remained pourable without the addition of ethanolamine, reduced dye transfer and child safety risks, and maintained dye vibrancy.
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Abstract
Description
Field of the Invention
[0001] The present invention relates to a detergent compartment pouch comprising a biosurfactant and a water-soluble film containing polyvinyl alcohol. Prior Art
[0002] Due to ease of use, detergent products in unit-dose form have become one of the preferred forms for users, especially water-soluble pouches, which have the additional advantage of not requiring the opening of a package.
[0003] It is generally desirable for the water-soluble pouch to be filled with a liquid detergent solution, which limits the types of suitable detergent compositions that can be filled into the pouch.
[0004] Quite often, some liquid may "sweat" through the water-soluble film, creating a sticky surface.
[0005] In addition, some liquid may diffuse through the water-soluble film into a second compartment filled with a powder composition, causing the powder composition to agglomerate and thus not dissolve quickly and easily in the foam during washing.
[0006] Therefore, it is common to minimize the water content of the contained liquid detergent and / or use a non-aqueous solvent as a liquefying agent, which further limits the amount of suitable detergent compositions.
[0007] In addition, the thickness of the water-soluble film is often increased to have a more stable pouch. However, this consumes more resources and does not contribute to the washing efficiency of the product.
[0008] In addition, for safety reasons, it is desirable to formulate unit-dose detergents that do not dissolve too quickly in water to avoid ingestion of the detergent contents when a child is tempted by the usually brightly colored product to put the pouch into their mouth.
[0009] Therefore, there is a need to provide a detergent compartment pouch with a water-soluble film that is quite resistant to the contained liquid detergent solution.
[0010] The object of the present invention is to design a detergent product that eliminates the above challenges.
[0011] Description of the Invention
[0012] Surprisingly, it has been found that a detergent compartment pouch having a water-soluble film containing polyvinyl alcohol (PVOH) and containing a biosurfactant has excellent properties in terms of its stickiness during long-term storage.
[0013] The present invention thus provides a detergent compartment bag having at least one water-soluble film forming at least one compartment, wherein the at least one compartment contains a liquid composition comprising at least one biosurfactant, characterized in that the water-soluble film comprises polyvinyl alcohol.
[0014] The present invention further provides the use of the bag according to the present invention for cleaning the surface of an article.
[0015] One advantage of the present invention is that the detergent compartment bag of the present invention exhibits improved integrity and water resistance.
[0016] One advantage of the present invention is that the detergent compartment bag of the present invention has better storage stability.
[0017] A further advantage of the detergent compartment bag of the present invention is that the bag can use a thinner water-soluble film, thereby saving packaging materials.
[0018] Another advantage of the detergent compartment bag of the present invention is that the contained liquid composition can be formulated without adding ethanolamine while still maintaining its pourable liquid properties.
[0019] A further advantage of the present invention is that the dye contained in the detergent compartment bag according to the present invention exhibits enhanced color stability.
[0020] Another advantage of the detergent compartment bag of the present invention is that the dye contained in the detergent compartment bag according to the present invention does not transfer to textiles during washing.
[0021] A further advantage of the present invention is that the dye contained in the detergent compartment bag according to the present invention prevents children from tasting the detergent bag.
[0022] A further advantage of the present invention is that less dye can be incorporated into the detergent compartment bag according to the present invention without significantly losing the brilliance of the dye.
[0023] Thus, the present invention provides a detergent compartment bag having at least one water-soluble film forming at least one compartment, wherein the at least one compartment contains a liquid composition comprising at least one biosurfactant, characterized in that the water-soluble film comprises polyvinyl alcohol.
[0024] In the context of the present invention, "biosurfactant" is understood to mean all glycolipids produced by fermentation. The term "biosurfactant" also encompasses glycolipids that have been chemically or enzymatically modified after fermentation, provided that the glycolipid structure is retained.
[0025] Raw materials that can be used for the production of 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.
[0026] In the context of the present invention, the term "surfactant" is understood to mean an organic substance having surface-active properties that is capable of reducing the surface tension of water to below 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 Du Noüy ring method.
[0027] In the context of the present invention, the term "liquid" is understood to be liquid at a temperature of 25 °C and a pressure of 1013 mbar.
[0028] In cases where mean values are stated hereinafter, these are number-average mean values unless otherwise specified.
[0029] Unless otherwise specified, percentages are data expressed as percentages by weight.
[0030] Whenever measured values are stated hereinafter, these are measured at a temperature of 25 °C and a pressure of 1013 mbar unless otherwise specified.
[0031] The bag according to the invention is preferably characterized in that the biosurfactant is selected from rhamnolipids, sophorolipids, glucolipids, cellulose lipids, mannosylerythritol lipids and trehalose lipids, preferably rhamnolipids, sophorolipids and glucolipids, most preferably rhamnolipids.
[0032] Of course, mixtures of different biosurfactants can be included in the liquid composition.
[0033] Biosurfactants can be produced, for example, as described in EP 0499434, US 7,985,722, WO 03 / 006146, JP60183032, DE 19648439, DE 19600743, JP 01304034, CN 1337439, JP 2006274233, KR2004033376, JP 2006083238, JP 2006070231, WO 03 / 002700, FR 2740779, DE 2939519, US7,556,654, FR 2855752, EP 1445302, JP 2008062179 and JP 2007181789 or the documents cited therein. Suitable biosurfactants are available, for example, from Soliance, France.
[0034] Preferably, the bag according to the invention has at least one biosurfactant selected from rhamnolipids, in particular mono-, di- or poly-rhamnolipids, glucolipids, in particular mono-, di- or poly-glucolipids, and sophorolipids, in particular mono-, di- or poly-sophorolipids, preferably selected from rhamnolipids and glucolipids, most preferably rhamnolipids.
[0035] The term "rhamnolipid" is preferably understood in the context of the present invention to refer in particular to compounds of general formula (I) and their salts,
[0036]
[0037] wherein
[0038] mRL = 2, 1 or 0, preferably 1 or 0,
[0039] nRL = 1 or 0,
[0040] R 1RL and R 2RL = independently of each other identical or different organic residues having 2 to 24, preferably 5 to 13 carbon atoms, in particular optionally branched, optionally substituted, in particular hydroxy-substituted, optionally unsaturated, in particular optionally mono-, di- or tri-unsaturated alkyl residues, preferably selected from pentenyl, heptenyl, nonenyl, undecenyl and tridecenyl and those of (CH2) o -CH3, where o = 1 to 23, preferably 4 to 12.
[0041] If nRL = 1, the glycosidic bond between the two rhamnose units is preferably in the α-configuration. The optically active carbon atoms of the fatty acid are preferably present as the R-enantiomer (e.g. (R)-3-{(R)-3-[2-O-(α-L-rhamnopyranosyl)-α-L-rhamnopyranosyl]oxydecanoyl}oxydecanoate).
[0042] The term "dirhamnolipid" is understood in the context of the present invention to refer to a compound of general formula (I) or its salt in which nRL = 1.
[0043] The term "monorhamnolipid" is understood in the context of the present invention to refer to a compound of general formula (I) or its salt in which nRL = 0.
[0044] Different rhamnolipids are abbreviated according to the following nomenclature:
[0045] "diRL-CXCY" is understood to refer to a dirhamnolipid of general formula (I) in which one of the residues R 1RL and R 2RL = (CH2) o -CH3, where o = X - 4, and the remaining residue R 1 or R2 = (CH2) o -CH3, where o = Y - 4.
[0046] "monoRL-CXCY" is understood to refer to a monorhamnolipid of general formula (I), where the residue R 1RL and R 2RL one of = (CH2) o -CH3, where o = X - 4, and the remaining residue R 1RL or R 2RL = (CH2) o -CH3, where o = Y - 4.
[0047] Thus, the nomenclature used does not distinguish between "CXCY" and "CYCX".
[0048] For rhamnolipids where mRL = 0, monoRL-CX or diRL-CX is used accordingly.
[0049] 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.
[0050] Methods for preparing the relevant rhamnolipids are disclosed, for example, in EP2786743 and EP2787065.
[0051] The rhamnolipids suitable for the present invention can also be produced by fermentation of Pseudomonas, especially Pseudomonas aeruginosa, which are preferably non-genetically modified cells, a technique that has been disclosed since 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 present invention; for example, Lei et al. disclosed such cells in Biotechnol Lett. June 2020; 42(6):997 - 1002.
[0052] Rhamnolipids produced by Pseudomonas aeruginosa are commercially available from Jeneil Biotech Inc., for example under the trade name Zonix, from Logos Technologies (technology obtained from 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.
[0053] The present invention provides a bag which preferably contains rhamnolipids as said biosurfactant in said liquid composition, characterized in that said rhamnolipids contain
[0054] 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 (I) where nRL = 0,
[0055] where the percentages by weight are based on the total of all rhamnolipids contained in said liquid composition.
[0056] The present invention alternatively provides a bag which preferably contains rhamnolipids as said biosurfactant in said liquid composition, characterized in that said rhamnolipids contain
[0057] 71% to 100% by weight, preferably 75% to 95% by weight, particularly preferably 80% to 90% by weight of di-rhamnolipids, in particular those of formula (I) where nRL = 1,
[0058] where the percentages by weight are based on the total of all rhamnolipids contained in said liquid composition.
[0059] The present invention further provides a bag which preferably contains rhamnolipids as said biosurfactant in said liquid composition, characterized in that said rhamnolipids contain
[0060] 56% to 95% by weight, preferably 60% to 80% by weight, particularly preferably 66% to 70% by weight of diRL-C10C10,
[0061] where the percentages by weight are based on the total of all rhamnolipids contained in said liquid composition.
[0062] The preferred bag according to the invention is characterized in that the bag contains the rhamnolipid as described above as a biosurfactant in the liquid composition, and the content thereof is
[0063] 0.5 wt% to 15 wt%, preferably 3 wt% to 12 wt%, particularly preferably 5 wt% to 10 wt% of diRL-C10C12:1,
[0064] where the weight percentage is calculated based on the total sum of all rhamnolipids contained in the liquid composition.
[0065] A further preferred bag according to the invention is characterized in that the bag contains the rhamnolipid as described above as a biosurfactant in the liquid composition, and the content thereof is
[0066] 0.5 to 25 wt%, preferably 3 wt% to 15 wt%, particularly preferably 5 wt% to 12 wt% of diRL-C10C12,
[0067] where the weight percentage is calculated based on the total sum of all rhamnolipids contained in the liquid composition.
[0068] The preferred bag according to the invention is characterized in that the bag contains the rhamnolipid as described above as a biosurfactant in the liquid composition, and the content thereof is
[0069] 0.1 wt% to 25 wt%, preferably 2 wt% to 10 wt%, particularly preferably 4 wt% to 8 wt% of diRL-C8C10,
[0070] where the weight percentage is calculated based on the total sum of all rhamnolipids contained in the liquid composition.
[0071] A still further preferred bag according to the invention is characterized in that the bag contains the rhamnolipid as described above as a biosurfactant in the liquid composition, and the content thereof is
[0072] 0.1 wt% to 5 wt%, preferably 0.5 wt% to 3 wt%, particularly preferably 0.5 wt% to 2 wt% of monoRL-C8C10 and / or, preferably and
[0073] 0.1 wt% to 5 wt%, preferably 0.5 wt% to 3 wt%, particularly preferably 0.5 wt% to 2 wt% of monoRL-C10C10,
[0074] where the weight percentage is calculated based on the total sum of all rhamnolipids contained in the liquid composition.
[0075] The present invention provides a bag which alternatively preferably contains rhamnolipid as the biosurfactant in the liquid composition, characterized in that the rhamnolipid contains
[0076] 10 wt% to 30 wt%, preferably 20 wt% to 30 wt%, particularly preferably 25 wt% to 30 wt% of monoRL-C10C10,
[0077] where the weight percentage is based on the total sum of all rhamnolipids contained in the liquid composition.
[0078] The alternative preferred bag according to the present invention is preferably characterized in that the bag contains the above-mentioned rhamnolipid as a biosurfactant in the liquid composition in an amount of
[0079] 10 wt% to 30 wt%, preferably 12 wt% to 25 wt%, particularly preferably 15 wt% to 20 wt% of diRL-C10C10,
[0080] where the weight percentage is based on the total sum of all rhamnolipids contained in the liquid composition.
[0081] The alternative preferred bag according to the present invention is preferably characterized in that the bag contains the above-mentioned rhamnolipid as a biosurfactant in the liquid composition in an amount of
[0082] 10 wt% to 30 wt%, preferably 12 wt% to 25 wt%, particularly preferably 15 wt% to 20 wt% of monoRL-C8C10,
[0083] where the weight percentage is based on the total sum of all rhamnolipids contained in the liquid composition.
[0084] The alternative preferred bag according to the present invention is preferably characterized in that the bag contains the above-mentioned rhamnolipid as a biosurfactant in the liquid composition in an amount of
[0085] 3 wt% to 25 wt%, preferably 5 wt% to 20 wt%, particularly preferably 10 wt% to 15 wt% of monoRL-C10C12:1,
[0086] where the weight percentage is based on the total sum of all rhamnolipids contained in the liquid composition.
[0087] The alternative preferred bag according to the present invention is preferably characterized in that the bag contains the above-mentioned rhamnolipid as a biosurfactant in the liquid composition in an amount of
[0088] 1 wt% to 15 wt%, preferably 2 wt% to 10 wt%, particularly preferably 3 wt% to 8 wt% of diRL-C10C12,
[0089] where the weight percentages are based on the sum of all rhamnolipids comprised in the liquid composition.
[0090] Methods for preparing the relevant rhamnolipids are disclosed, for example, in EP2786743 and EP2787065.
[0091] Rhamnolipids suitable for the present invention can also be produced by fermentation of Pseudomonas species, especially Pseudomonas aeruginosa, which are preferably non-genetically modified cells, 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 present invention; for example, Lei et al. disclosed such cells in Biotechnol Lett. June 2020; 42(6):997 - 1002.
[0092] 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.
[0093] In the present invention, the term "sophorolipid" is preferably understood to refer to the compounds of general formula (IIa) and (IIb) and their salts
[0094]
[0095]
[0096] where
[0097] R 1SL = H or CO-CH3,
[0098] R 2SL = H or CO-CH3,
[0099] R 3SL = a divalent organic moiety containing 6 to 32 carbon atoms and which is unsubstituted or hydroxy-functionally substituted, unbranched and optionally contains 1 to 3 double or triple bonds,
[0100] R 4SL = H, CH3 or a monovalent organic group containing 2 to 10 carbon atoms and which is unsubstituted or hydroxy-functionally substituted, unbranched and optionally contains 1 to 3 double or triple bonds, and
[0101] nSL = 1 or 0.
[0102] The sophorolipids can be used according to the invention in their acid form or in their lactone form.
[0103] Preferred compositions according to the invention comprise sophorolipids, wherein the weight ratio of the lactone form to the acid form is from 20:80 to 80:20, particularly preferably from 30:70 to 40:60.
[0104] For the determination of the content of the acid or lactone form of sophorolipids in the formulation, reference is made to EP1411111B1, page 8, paragraph
[0053] .
[0105] Regarding the present invention, the term "glucoselipid" is preferably understood to mean the compounds of general formula (III) and their salts,
[0106]
[0107] wherein
[0108] mGL = 3, 2, 1 or 0, preferably 1 or 0,
[0109] R 1GL and R 2GL = independently of one another identical 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 alkyls, preferably selected from pentenyl, heptenyl, nonenyl, undecenyl and tridecenyl and the group (CH2) o -CH3, where o = 1 to 23, preferably 4 to 12.
[0110] The different glucoselipids are abbreviated according to the following nomenclature:
[0111] "GL-CXCY" is understood to mean the glucoselipid of general formula (III) in which one of the groups R 1GL and R 2GL = (CH2) o -CH3, where o = X-4, and the remaining group R 1GL or R2GL =(CH2) o -CH3, where o = Y - 4.
[0112] Therefore, the nomenclature used does not distinguish between "CXCY" and "CYCX".
[0113] 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 with Z double bonds.
[0114] The method for producing glucolipids can be carried out as described in WO2019154970.
[0115] The preferred bag according to the present invention is characterized in that the biosurfactant is contained in the liquid composition in an amount of 0.1% to 50% by weight, preferably 1.0% to 20% by weight, more preferably 5.0% to 15% by weight, where the weight percentage is based on the total liquid composition.
[0116] When determining the content of the biosurfactant in the present invention, the mass in the non-salt form is considered; thus, the weight of the corresponding cation is ignored.
[0117] The preferred bag according to the present invention is characterized in that it contains at least one non-biosurfactant in the liquid composition, which is preferably selected from anionic surfactants, cationic surfactants, non-ionic surfactants, semi-polar surfactants, amphoteric surfactants, and zwitterionic surfactants.
[0118] The preferred bag according to the present invention is characterized in that the biosurfactant is contained in the liquid composition in an amount of 50% to 100% by weight, preferably 60% to 98% by weight, more preferably 80% to 95% by weight, where the weight percentage is based on the total sum of all surfactants contained in the liquid composition.
[0119] Preferably, the non-biosurfactant is selected from fatty alcohol alkoxylates.
[0120] These can be advantageously used for cleaning the surface of textiles or fabrics containing polyamines.
[0121] 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 (FA), 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 succinic acids, dodecenyl / tetradecenyl succinic acid (DTSA), fatty acid derivatives of amino acids, diesters and monoesters of sulfosuccinic acid or soaps, and combinations thereof.
[0122] Non-limiting examples of cationic surfactants include alklydimethylethanolamine quats (ADMEAQ), cetyltrimethylammonium bromide (CTAB), dimethyldistearylammonium chloride (DSDMAC) and alkylbenzyldimethylammonium, alkyl quaternary compounds, alkoxylated quaternary (AQA) compounds, and combinations thereof.
[0123] Non-limiting examples of nonionic surfactants include alcohol ethoxylates (AE or AEO) (which are preferably included in the compositions according to the invention), 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), alkylpolyglycosides (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.
[0124] Non-limiting examples of semi-polar surfactants include amine oxides (AO), such as alkyldimethylamine oxides, 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.
[0125] Non-limiting examples of zwitterionic surfactants and amphoteric surfactants include betaines, alkyl dimethyl betaines, sulfobetaines, hydroxysulfobetaines, and combinations thereof.
[0126] In addition, non-glycolipid-based biobased surfactants may be included in the compositions according to the invention, such as lipopeptides such as surfactins or phospholipids such as lecithin.
[0127] A preferred bag according to the invention is characterized in that the liquid composition comprises at least one water-soluble dye.
[0128] In the present invention, the term "water-soluble" means that a substance is soluble in water at a concentration of at least 10 mg / l at 25 °C and 1 bar.
[0129] A preferred bag according to the invention is characterized in that the water-soluble dye is selected from the group consisting of, preferably consisting of:
[0130] Acid Blue 1 (also known as CI 42045, hydrogen [4-[4-(diethylamino)-2',4'-disulfonatodibenzylidene]cyclohex-2,5-dien-1-ylidene]diethylammonium),
[0131] Acid Blue 3 (also known as Patent Blue V, CI 42051, exemplary salts are (bis[hydrogen [4-[4-(diethylamino)-5'-hydroxy-2',4'-disulfonatodibenzylidene]cyclohex-2,5-dien-1-ylidene]diethylammonium], calcium salt)),
[0132] Acid Blue 7 (also known as CI 42080, exemplary salts are hydrogen(benzyl)[4-[[4-[benzylethylamino]phenyl](2,4-disulfonatophenyl)methylene]cyclohex-2,5-dien-1-ylidene](ethyl)ammonium, sodium salt),
[0133] Acid Blue 145 (also known as C.I. 62070, 1-amino-9,10-dihydro-4-[(4-methyl-2-sulfonatophenyl)amino]-9,10-dioxoanthracene-2-sulfonic acid disodium),
[0134] Acid Blue 182 (4-[[4-(acetylmethylamino)-2-sulfonatophenyl]amino]-1-amino-9,10-dihydro-9,10-dioxoanthracene-2-sulfonic acid disodium),
[0135] Acid Blue 185 (also known as C.I. 74200, phthalocyanine type),
[0136] Acid Blue 193 (also known as C.I. 15707, disodium hydrogen bis[3-hydroxy-4-[(2-hydroxy-1-naphthyl)azo]naphthalene-1-sulfonato(3-)]chromate(3-)),
[0137] C.I. Acid Blue 9 (also known as CI 42090, an exemplary salt is dihydrogen(ethyl)[[4-[4-[ethyl(3-sulfonatobenzyl)]amino]-2'-sulfonatodibenzylidene]cyclohex-2,5-dien-1-ylidene]-(3-sulfonatobenzyl)ammonium, sodium salt),
[0138] C.I. Acid Blue 93 (also known as CI 42780, [[4-[bis[4-[(sulfonatophenyl)amino]phenyl]methylene]cyclohex-2,5-dien-1-ylidene]amino]benzenesulfonic acid disodium), 1,4-bis(methesitylamino)anthraquinone),
[0139] C.I. Pigment Blue 29 (also known as CI 77007, an exemplary salt is sodium aluminosilicate sulfide),
[0140] C.I. Solvent Blue 3 (4-[{4-(anilino)phenyl]-(4-phenylimino-cyclohex-2,5-dien-1-ylidene)methyl]-2-methylaniline}), and
[0141] C.I. Reactive Blue 116,
[0142] preferably
[0143] Acid Blue 1 (also known as CI 42045, hydrogen[4-[4-(diethylamino)-2',4'-disulfonatodibenzylidene]cyclohex-2,5-dien-1-ylidene]diethylammonium),
[0144] Acid Blue 3 (also known as Patent Blue V, CI 42051, an exemplary salt is (bis[hydrogen[4-[4-(diethylamino)-5'-hydroxy-2',4'-disulfonatodibenzylidene]cyclohex-2,5-dien-1-ylidene]diethylammonium], calcium salt),
[0145] Acid Blue 145 (also known as C.I. 62070, 1-amino-9,10-dihydro-4-[(4-methyl-2-sulfonatophenyl)amino]-9,10-dioxoanthracene-2-sulfonic acid disodium),
[0146] Acid Blue 182 (4-[[4-(acetylmethylamino)-2-sulfonatophenyl]amino]-1-amino-9,10-dihydro-9,10-dioxoanthracene-2-sulfonic acid disodium),
[0147] C.I. Pigment Blue 29 (also known as CI 77007, an exemplary salt is sodium aluminosilicate sulfide), and
[0148] C.I. Solvent Blue 3 (4 - [{4 - (phenylamino)phenyl] - (4 - phenylimino cyclohex - 2,5 - diene - 1 - ylidene)methyl] - 2 - methylaniline}),
[0149] Most preferably
[0150] Acid Blue 1 (also known as CI 42045, hydrogen [4 - [4 - (diethylamino) - 2',4' - disulfonato diphenylmethylene] cyclohex - 2,5 - diene - 1 - yliden] diethylammonium),
[0151] Acid Blue 3 (also known as Patent Blue V, CI42051, an exemplary salt is (bis[hydrogen [4 - [4 - (diethylamino) - 5' - hydroxy - 2',4' - disulfonato diphenylmethylene] cyclohex - 2,5 - diene - 1 - yliden] diethylammonium], calcium salt),
[0152] Acid Blue 145 (also known as C.I.62070, 1 - amino - 9,10 - dihydro - 4 - [(4 - methyl - 2 - sulfonatophenyl)amino] - 9,10 - dioxoanthracene - 2 - sulfonic acid disodium),
[0153] Acid Blue 182 (4 - [[4 - (acetylmethylamino) - 2 - sulfonatophenyl]amino] - 1 - amino - 9,10 - dihydro - 9,10 - dioxoanthracene - 2 - sulfonic acid disodium), and
[0154] C.I. Pigment Blue 29 (also known as CI 77007, an exemplary salt is sodium aluminosilicate sulfide).
[0155] The dye is preferably included in an amount of 0.001 wt% to 1.0 wt%, preferably 0.01 wt% to 0.5 wt%, more preferably 0.1 wt% to 0.25 wt%, where the weight percentage is based on the total liquid composition.
[0156] The preferred bag according to the present invention is characterized in that the liquid composition contains water in an amount of 0.1 wt% to 25 wt%, preferably 8.0 wt% to 20 wt%, more preferably 16 wt% to 19 wt%, where the weight percentage is based on the total liquid composition.
[0157] The preferred bag according to the present invention is characterized in that the liquid composition contains monoethanolamine (MEA) in an amount of less than 15 wt%, preferably less than 10 wt%, more preferably 0.01 wt% to 4.0 wt%, where the weight percentage is based on the total liquid composition. Preferably, the liquid composition does not contain a detectable amount of MEA.
[0158] The bag according to the invention has a water-soluble film comprising polyvinyl alcohol.
[0159] The polyvinyl alcohol may be partially acetalized or present in the form of a polyvinyl alcohol copolymer.
[0160] Suitable polyvinyl alcohols for inclusion in the water-soluble film are commercially available, for example, under the trade names Solublon (AICELLO - HARKE), Mowiol (Clariant); water-soluble films comprising polyvinyl alcohol are commercially available, for example, under the trade names Watersol TM and MonoSol (Kuraray). Particularly suitable polyvinyl alcohols in the present invention are, for example, Solublon GS, Solublon GA, Solublon PT, Solublon KC, Solublon KL, Mowiol 3 - 83, Mowiol 4 - 88, Mowiol 5 - 88, Mowiol 8 - 88 and Clariant L648.
[0161] The polyvinyl alcohol preferably included in the water-soluble film of the bag of the present invention has a degree of hydrolysis of 70 mol% to 100 mol%, preferably 80 mol% to 90 mol%, particularly preferably 81 mol% to 89 mol%, especially 82 mol% to 88 mol%.
[0162] The polyvinyl alcohol preferably included in the water-soluble film of the bag of the present invention has a molecular weight in the range of 10,000 g / mol to 100,000 g / mol, preferably 1,000 g / mol to 90,000 g / mol, particularly preferably 12,000 g / mol to 80,000 g / mol, especially 14,000 g / mol to 68,000 g / mol.
[0163] The water-soluble film of the bag of the present invention may optionally contain additional polymers selected from acrylic acid-containing polymers, polyacrylamides, oxazoline polymers, polystyrene sulfonates, polyurethanes, polyesters, polyethers, and / or mixtures thereof.
[0164] The water-soluble film of the bag of the present invention preferably contains at least 50% by weight, preferably at least 70% by weight, particularly preferably at least 80% by weight, especially at least 92% by weight of the polyvinyl alcohol, where the weight percentage is based on the total weight of the water-soluble film.
[0165] The bag according to the invention can be a multi-compartment detergent bag having more than one compartment.
[0166] The different compartments can be filled with different compositions, provided that at least one compartment contains a liquid composition comprising at least one biosurfactant as described above.
[0167] Preferably, at least one compartment in the multi-compartment detergent bag according to the invention contains a solid composition and at least one other compartment contains the liquid composition. The solid / liquid weight ratio of the compositions is preferably from about 20:1 to about 1:20, more preferably from about 18:1 to about 2:1, still more preferably from about 15:1 to about 5:1. The multi-compartment detergent bag according to the invention is very versatile because it can accommodate compositions with a wide range of solid-to-liquid ratios. It has been found that particularly preferred are multi-compartment detergent bags with a high solid-to-liquid ratio because many detergent ingredients are most suitable for use in solid form, preferably in powder form. The solid-to-liquid ratio as defined herein refers to the relationship between the weight of all solid compositions in the bag and the weight of all liquid compositions.
[0168] Alternatively preferably in the multi-compartment detergent bag according to the invention, the solid-to-liquid weight ratio is from about 1:2 to about 1:18, more preferably from about 1:5 to about 1:15. These weight ratios are suitable when most of the detergent ingredients are in liquid form.
[0169] Surprisingly, it has been found that the diffusion of liquid from one compartment to the compartment containing the solid composition is significantly reduced. Thus, the solid composition contained in the form of a flowing powder does not agglomerate.
[0170] Enzymes are useful additives in detergent compositions, such as dishwashing or laundry compositions.
[0171] The detergent compartment bag according to the invention preferably contains at least one enzyme. Preferably, the enzyme is contained in the liquid composition comprising the at least one biosurfactant.
[0172] The enzymes preferably comprised in the bag according to the invention are selected from proteases, amylases, lipases, pectinases, cellulases, phosphodiesterases, mannanases, cutinases, pectate lyases, peroxidases, oxidases and laccases, with proteases, amylases, lipases, pectinases, cellulases, phosphodiesterases and mannanases being particularly preferred.
[0173] The enzymes used in the present invention can, for example, originally be derived from microorganisms such as those of the genus Bacillus, Streptomyces, Humicola or Pseudomonas, and / or be produced by suitable microorganisms according to known biotechnological methods, such as by transgenic expression hosts such as those of the genus Escherichia, Bacillus or filamentous fungi.
[0174] It is emphasized that it can also be in particular industrial enzyme preparations of the corresponding enzymes, i.e., accompanying substances can be present. The enzyme can thus be packaged and used together with accompanying substances (such as from fermentation) or with other stabilizers.
[0175] Suitable proteases include those of bacterial, fungal, plant, viral or animal origin, such as those of plant or microbial origin. Microbial origin is preferred. It includes chemically modified or protein-engineered mutants. It can be an alkaline protease, such as a serine protease or a metalloprotease. The serine protease can be, for example, of the S1 family, such as trypsin, or of the S8 family, such as subtilisin. The metalloprotease can be, for example, thermolysin from the M4 family or other metalloproteases, such as those from the M5, M7 or M8 families.
[0176] Examples of proteases are subtilisin BPN from Bacillus amyloliquefaciens and Carlsberg, protease PB92, subtilisin 147 and 309 from Bacillus licheniformis, protease from Bacillus lentus, subtilisin DY and subtilisin enzyme, which are no longer designated as subtilisin in the narrower sense, thermitase, protease K and proteases TW3 and TW7.
[0177] Subtilisin Carlsberg is in the form of Alcalase a further developed form from Novozymes A / S, Bagsværd, Denmark.
[0178] Subtilisin 147 and 309 are sold by Novozymes under the trade names Esperase and Savinase respectively. The name BLAP The protease variant is derived from a protease from Bacillus lentus DSM 5483. Other available proteases are, for example, those sold under the trade names Durazym , Relase , Everlase , Nafizym , Natalase , Kannase and Ovozyme from Novozymes, those sold under the trade names Purafect , Purafect OxP, Purafect Prime, Excellase and Properase from Danisco / Genencor, which are sold under the trade names Protosol by Company Advanced Biochemicals Ltd., Thane, India, which are sold under the trade name Wuxi by Wuxi Snyder Bioproducts Ltd., China, which are sold under the trade names Proleather and Protease P by Amano Pharmaceuticals Ltd., Nagoya, Japan, and the enzyme available from Kao Corp., Tokyo, Japan under the name Proteinase K-16.
[0179] Particular preference is also given to using the proteases from Bacillus gibsonii and Bacillus pumilus disclosed in International Patent Applications WO 08 / 086916 and WO 07 / 131656.
[0180] Further advantageously available proteases are disclosed in patent applications WO 91 / 02792, WO 08 / 007319, WO 93 / 18140, WO 01 / 44452, GB 1243784, WO 96 / 34946, WO 02 / 029024 and WO 03 / 057246. Other proteases that can be used are those found in the naturally occurring microorganisms Stenotrophomonas maltophilia, especially Stenotrophomonas maltophilia K279a, Bacillus intermedius and Bacillus sphaericus.
[0181] Other commercially available proteases are: Liquanase EC 3.5L, Liquanase Evity EC 3.5L, Liquanase 3.5L, Liquanase Evity 3.5L, Preferenz P100, Preferenz P200, Preferenz P300, BiotouchROC, BIOPROTEASAL 800ST, Bioproteasa 800P, Bioproteasa L800, Lavergy Pro 114LS, Progress Uno EC 100L, Progress Uno 100L, Progress Uno101L, EFFECTENZ TM P 100(A01339), EFFECTENZ TM P 150, Savinase Evity EC 16L, Savinase Evity EC 24T, Savinase Evity 16L, Savinase Evity 24T, Excellenz P 1250, Blaze Evity EC 150T, Blaze Evity 150T, Blaze Evity 125T, Blaze Evity 16L, Excellase, Purafect, Purafect OxP, PurafectPrime, Properase, Blaze Pro EC 100L, Blaze Pro 100L, Blaze Exceed 100T, Progress Key 150T, Progress Excel 101L.
[0182] The protease preferably included in the bag according to the present invention is Liquanase 2.5L.
[0183] Suitable amylases useful herein can be α - amylases or glucoamylases and can be of bacterial or fungal origin. Include chemically modified or protein - engineered mutants. Amylases include, for example, α - amylases obtained from strains of the genus Bacillus, such as specific strains of Bacillus licheniformis, more particularly described in GB 1,296,839.
[0184] Examples of amylases are α - amylases from Bacillus licheniformis, from Bacillus amyloliquefaciens or from Bacillus stearothermophilus, especially their improved further developments for use in detergents or cleaners.
[0185] The enzyme from Bacillus licheniformis can be named Termamyl obtained from Novozymes and named Purastar ST obtained from Danisco / Genencor.
[0186] Further developed products of such α - amylases can be named Duramyl and Termamyl ultra obtained from Novozymes, named Purastar OxAm obtained from Danisco / Genencor, and as Keistase obtained from Daiwa Seiko Inc., Tokyo, Japan.
[0187] The α - amylase from Bacillus amyloliquefaciens is sold by Novozymes under the name BAN and under the name BSG and Novamyl There are also variants of α - amylase derived from Bacillus stearothermophilus, also from Novozymes
[0188] In addition, the α - amylase from Bacillus sp. A 7 - 7 (DSM 12368) and the cyclodextrin glucanotransferase (CGTase) from Bacillus stearothermophilus (DSM 9948) should be emphasized
[0189] It is also possible to use the amylolytic enzymes disclosed in international patent applications WO 03 / 002711, WO 03 / 054177 and WO07 / 079938
[0190] It is also possible to use fusion products of all the molecules mentioned. In addition, further developed products of α - amylase from Aspergillus niger and A. oryzae, available under the trade name Fungamyl from Novozymes, are suitable. Other commercial products that can be advantageously used are, for example, Amylase - LT and Stainzyme and Stainzyme ultra or Stainzyme plus or Stainzyme plus which is also from Novozymes. Variants of these enzymes obtainable by point mutation can also be used according to the invention
[0191] Other commercially available amylases are: Amplify Prime EC 110L, Amplify Prime 100L, PREFERENZS110, Bioamyl P, Stainzyme Plus Evity, Stainzyme Plus Evity EC 12T, Stainzyme Plus Evity EC 24T, Stainzyme Plus Evity 24T, EFFECTENZ TM S100, EFFECTENZ TM S210, Bialfa T, Achieve Alpha EC 110L, Achieve Alpha 100L, Achieve Advance 150T, Stainzyme, Amplify, Duramyl, Novamyl.
[0192] Amplify TM Prime 100L is preferably included in the bag according to the present invention.
[0193] Suitable cellulases include those from bacterial or fungal sources, including chemically modified or protein-engineered mutants. Suitable cellulases include cellulases from the genera Bacillus, Pseudomonas, Humicola, Fusarium, Thielavia, Acremonium, such as fungal cellulases produced by Humicola insolens, Myceliophthora thermophila, and Fusarium oxysporum as disclosed in U.S. Patent Nos. 4,435,307, 5,648,263, 5,691,178, 5,776,757, and WO 89 / 09259.
[0194] Examples of cellulases (endo - glucanases, EG) are fungal endo - glucanase (EG) - rich cellulase preparations or further developed products thereof, which are provided by Novozymes under the trade name Celluzyme Available.
[0195] The product Endolase available from Novozymes can also be used and Carezyme Based on the 50kD - EG or 43kD - EG from Humicola insolens DSM 1800. Other commercial products available from this company that can be used are Cellusoft , Renozyme and Celluclean . Products such as those available under the trade names Ecostone and Biotouch Obtained from AB Enzymes, Finland and at least partially based on a 20kD EG cellulase from Melanocarpus. Other cellulases from AB Enzymes are Econase and Ecopulp . Further suitable cellulases are from Bacillus sp. CBS 670.93 and CBS 669.93, and the cellulase from Bacillus sp. CBS 670.93 from Danisco / Genencor can be obtained under the trade name Puradax .
[0196] Other commercial products available from Danisco / Genencor are "Genencor detergent cellulase L" and IndiAge Neutra
[0197] Other commercially available cellulases are: Carezyme PremiumEC 4510L, Carezyme Premium Evity EC 5000T, Carezyme Premium 4500L, Carezyme PremiumEvity 5000T, REVILATENZ200, BiotouchDCL / FCL, Biosoft L Pure, Rocksoft, Retrocell, Retrocell ZircoN, Puradax EG 7000L, Biotouch FCC, BIOCELULASA MC L, BIOCELULASA MC P, Celluclean EC 5000L, Celluclean 5000L, REVILATENZ 200, Biotouch FLX, Lavergy C Bright100L, Celluclean Evity EC 4500T, Celluclean Evity 4500T, Biotouch DCC
[0198] Further preferred enzymes present in the bags of the present invention are those known by the term glycosidase (E.C. 3.2.1.x). These particularly include arabinases, fucosidases, galactosidases, galactanases, arabico-galactan-galactosidases, mannanases (also known as mannosidases or mannanases), glucuronosidases, agarases, carrageenases, pullulanases, β-glucosidases, xyloglucanases (xylanases), xanthanases and pectin-degrading enzymes.
[0199] Preferred glycosidases are also subsumed under the term hemicellulase. Hemicellulases specifically include mannanases, xyloglucanases (xylanases), β-glucosidases, and carrageenases, as well as pectinases, pullulanases, and β-glucanases. Pectinases are pectin-degrading enzymes, specifically hydrolytic pectin-degrading enzymes belonging to the enzyme classes EC 3.1.1.11, EC 3.2.1.15, EC 3.2.1.67, and EC 3.2.1.82. In the present invention, pectinases also include those named pectin lyase, pectin esterase, pectin demethoxylase, pectin methoxylase, pectin methyl esterase, pectase, pectin methyl esterase, pectin esterase, pectin-galle-lactase, pectin-gal-galase, pectin-gal-galase, pectin-gal-galase, pectin-gal-galase, pectin-gal-galase, pectin-gal-galase, pectin-gal-galonase, pectin-galactolase, endopoly-nolase, pectin-poly-galase, pectin-polyhydrolase, pectin-poly-galase, pectin-polyhydrolase, pectin-poly-galase, pectin-poly-galactose-1,4-galacturonide glycanohydrolase, endogalacturonase, endo-D-galacturonase, galacturan 1,4-α-galacturonase,enzymes such as 4-a-galacturonidase, exopolygalacturonase, poly(galacturonate) hydrolase, exo-D-galacturonase, exo-D-galacturonanase-Galacturonase, exo-poly-a-galacturonosidase, Exopolygalacturonosidase or exopolygalacturanosidase.,
[0200] Examples of enzymes suitable in this regard are, for example, Gamanase named from Novozymes , Pektinex AR or Pectaway , Rohapec B1 L named from AB Enzymes, and Pyrolase named from Diversa Corp., San Diego, CA, USA.
[0201] The β-glucanase obtained from Bacillus subtilis can be named Cereflo and obtained from Novozymes.
[0202] Particularly preferred glycosidases or hemicellulases according to the invention are mannanases, which are, for example, sold by Novozymes under the trade name Mannaway or by Danisco / Genencor under the trade name Purabrite .
[0203] Examples of commercially available mannanases are: Mannaway EC 200L, Mannaway EC 108L, Mannaway 200L, Mannaway 100L, PREFERENZ M100, Biotouch M, Biomananasa 2XL.
[0204] The mannanase preferably included in the bag according to the invention is Mannaway 4.0 L
[0205] Examples of commercially available pectate lyases are: Xpect EC 1000L, Xpect EC 1000T, Xpect 1000L, Xpect 1000T, PREVERENZ F 1000, Pectex Pure, Lavergy Pro 106L, Lavergy Pro106LS
[0206] Examples of commercially available licheninases are: Lift INTENT 100L, Lift INTENT 100T
[0207] Suitable lipases and cutinases include those of bacterial or fungal origin. This includes chemically modified or protein-engineered mutant enzymes. Examples of lipases or cutinases are those originally from Humicola lanuginosa (Thermomyces lanuginosus) or further developed therefrom, especially those with the amino acid substitution D96L. They are sold, for example, by Novozymes under the trade names Lipolase 、Lipolase Ultra, LipoPrime 、Lipozyme and Lipex
[0208] Another lipase that can be advantageously used is available under the trade name Lipoclean from Novozymes
[0209] Furthermore, for example, cutinases originally isolated from Fusarium solani pisi and Humicola insolens can be used. Lipases that can also be used are available under the names Lipase CE 、Lipase P 、Lipase B 、or Lipase CES 、Lipase AKG 、Bacillis sp. Lipase 、Lipase AP 、LipaseM-AP and Lipase AML obtained from Amano. For example, lipases or cutinases from Danisco / Genencor can be used, the starting enzymes of which were originally isolated from Pseudomonas mendocina and Fusarium solanii. Other important commercial products are the preparation M1 Lipase originally sold by Gist-Brocades (now Danisco / Genencor). and Lipomax , as well as those named Lipase MY-30 , Lipase OF and Lipase PL from Meito Sangyo KK, Japan, and the product Lumafast from Danisco / Genencor .
[0210] Other examples of commercially available lipases are: Lipex Evity EC 100L, Lipex Evity EC 100T, Lipex Evity EC 200L, Lipex Evity 100L, Lipex Evity 100T, Lipex Evity 200L, PREFERENZ L 100, Biolipasa2XL, Biolipasa L, Biolipasa P, Lipoclean, Lipolase, Lipolase Ultra.
[0211] The lipase preferably included in the bag according to the present invention is Lipex TM 100L Evity.
[0212] An example of a commercially available phosphodiesterase is: Pristine from Novozyme.
[0213] Suitable peroxidases / oxidases include those of plant, bacterial or fungal origin. This includes chemically modified or protein engineered mutants. Examples of available peroxidases include peroxidases from the genus Coprinus, such as peroxidases from C. cinereus, and variants thereof, such as those described in WO 93 / 24618, WO 95 / 10602 and WO 98 / 15257.
[0214] Commercially available peroxidases include Guardzyme TM (Novozymes A / S).
[0215] The bag according to the invention may further comprise one or more auxiliaries selected from bleaching systems, hydrotropes, polymers (which may be synthetic), biopolymers, anti-redeposition aids, fiber protectants, detergents, dye transfer inhibitors, fabric toners, opacifiers, blueing dyes, enzyme stabilizers, solvents, viscosity improvers, preservatives, pH regulators and salts such as NaCl and Na2SO4.
[0216] Preferably, the auxiliaries are comprised in a liquid composition comprising the at least one biosurfactant.
[0217] The invention further provides the use of the bag according to the invention for cleaning the surface of an article, such as in automatic dishwashing or laundry applications, preferably textiles or fabrics.
[0218] Preferably, the use according to the invention is characterized by cleaning the surface of the article of fats and / or oils, preferably solid fat stains.
[0219] The use according to the invention preferably uses the preferred biosurfactant and polyvinyl alcohol as described above which are preferably used in the bag of the invention.
[0220] The following cited examples illustrate the invention by way of example and are not intended to limit the invention to the embodiments specified in the examples, the scope of application of the invention being evident from the entire specification and claims. Examples:
[0221] Example 1: Integrity and dissolution time measured on contact with water
[0222] Preparation of a liquid detergent formulation:
[0223] The following exemplary formulations were prepared according to the following protocol: First, a measured amount of water was introduced into a glass beaker of appropriate size. Subsequently, Components 1-5 were added at room temperature with vigorous stirring. All formulations contained Components 2-5, while Components 1a, 1b, and 1c were added only to Test Formulation 1, Reference Formulation 1, and Reference Formulation 2, respectively. The components were not added in a specific or consistent order as the order of addition to the solution was not critical. Subsequently, any remaining amount of water was introduced to ensure the desired concentration of the components. Finally, Component 6 (monoethanolamine) was added to the solution and the mixture was stirred vigorously for 1 hour at a temperature between 60 °C and 65 °C. In the next step, the mixture was cooled to 35 °C and Component 7 (citric acid) was added with continuous stirring until the pH of the formulation was adjusted to 8.0. Subsequently, Component 8 (enzyme) was introduced into the formulation and the mixture was stirred for 5 minutes to ensure a homogeneous solution. The exemplary composition was pourable and stable for a long time at room temperature.
[0224] Three formulations, namely Test Formulation 1, Reference Formulation 1, and Reference Formulation 2, were prepared using the above method. They were all composed of similar components at the same concentration and differed only in the type of anionic surfactant used, namely sodium dirhamnolipid, sodium linear alkylbenzene sulfonate, and sodium lauryl polyether sulfate in Test Formulation 1, Reference Formulation 1, and Reference Formulation 2, respectively. It is worth noting that sodium linear alkylbenzene sulfonate and sodium lauryl polyether sulfate are standard surfactants conventionally used in detergent formulations in water-soluble pouches.
[0225] The rhamnolipids used were prepared as described in Example 1 of EP3061442 and were similar to dirhamnolipids; monorhamnolipids were prepared as in Example 2 of EP3061442.
[0226] The compatibility of the compositions of Reference Formulation 1, Test Formulation 1, and Test Formulation 2 with the water-soluble film was evaluated:
[0227]
[0228] Preparation of detergent pouches:
[0229] Water-soluble PVOH foils were used to prepare the detergent pouches. First, two films were heat-sealed from three sides using a manual sealing device to form a small pouch with dimensions of 6 cm x 10 cm. Subsequently, 25 grams of the liquid detergent solution (Test Formulation 1, Reference Formulation 1, or Reference Formulation 2) was filled into the prepared pouch and sealed with a heat-sealing device. The outer edges outside the seal were removed by cutting to form the final pouch.
[0230] Solubility test of water-soluble pods:
[0231] Before the water solubility test, sachets filled with Test formulation 1, Reference formulation 1, and Reference formulation 2 were stored at room temperature and ambient humidity for 48 hours. This allowed sufficient conditioning time for the liquid detergent contents to affect the properties of the water-soluble film.
[0232] The test was conducted according to the following protocol:
[0233] For this test, 1 liter of water was placed in a suitable glass container and adjusted to 40 °C. The sachet containing the liquid detergent was attached to a metal support by its corners and allowed to be held freely by hand. Subsequently, the sachet was immersed in the water. Ensure that the sachet hangs vertically without touching the bottom of the glass container. No stirring was applied during the measurement. According to the test, the time between the immersion of the sachet in water and the first leakage of the detergent was measured. Additionally, the time required for the sachet immersed in water to lose its physical integrity and fall from the metal support to the bottom of the glass container was also recorded. The average results recorded for sachets containing each formulation are given below.
[0234] Results of the test to examine the effect of the liquid detergent on the water-soluble film:
[0235]
[0236] As summarized above, the water-soluble sachets containing Test formulation 1 surprisingly showed improved integrity after immersion in water compared to sachets containing Reference formulation 1 and Reference formulation 2. Thus, it was surprisingly found that the liquid detergent containing rhamnolipids has a positive effect on the integrity of the water-soluble sachet by making it less likely to open prematurely upon contact with water.
[0237] Example 2: Liquid formulation without monoethanolamine
[0238] Preparation of the liquid detergent formulation:
[0239] The following exemplary formulations were prepared according to the following protocol: First, a measured amount of water was introduced into a glass beaker of appropriate size. Subsequently, Components 1 - 5 were added at room temperature with vigorous stirring. All formulations contained Components 2 - 5, while Components 1a, 1b, and 1c were added only to Test Formulation 2, Reference Formulation 3, and Reference Formulation 4, respectively. The components were not added in a specific or consistent order as the order of addition to the solution was not critical. Subsequently, any remaining amount of water was introduced to ensure the desired concentration of the components. Finally, Component 6 (sodium hydroxide) was added to the solution, and the mixture was stirred vigorously for 1 hour at a temperature between 60 °C and 65 °C. In the next step, the mixture was cooled to 35 °C, and Component 7 (citric acid) was added with continuous stirring until the pH of the formulation was adjusted to 8.0. Subsequently, Component 8 (enzyme) was introduced into the formulation, and the mixture was stirred for 5 minutes to ensure a homogeneous solution. The exemplary composition was pourable and stable for an extended period at room temperature.
[0240] Three formulations, namely Test Formulation 2, Reference Formulation 3, and Reference Formulation 4, were prepared using the above method. They were all composed of similar components at the same concentration and differed only in the type of anionic surfactant used, which was sodium dirhamnolipid, sodium linear alkylbenzene sulfonate, and sodium laureth sulfate in Test Formulation 2, Reference Formulation 3, and Reference Formulation 4, respectively.
[0241] The properties of the compositions of Reference Formulation 2, Test Formulation 3, and Test Formulation 4 were evaluated:
[0242]
[0243]
[0244] Surprisingly, it was found that after cooling all three formulations (Test Formulation 2, Reference Formulation 3, and Reference Formulation 4), only Test Formulation 2 retained its liquid characteristics, while Reference Formulation 3 and Reference Formulation 4 solidified. Thus, Test Formulation 2 could be processed at room temperature and retained its liquid characteristics after being placed inside a water-soluble bag, while Reference Formulation 3 and Reference Formulation 4 solidified at room temperature, thus hindering their use as liquid detergents for water-soluble bags. Therefore, it was surprisingly found that biosurfactants enabled the formulation of a concentrated liquid detergent for water-soluble bags without the addition of any monoethanolamine.
[0245] Example 3: Dye Stability during Storage
[0246]
[0247] The formulations were packaged into bags according to the method in Example 1.
[0248] Store these bags on a laboratory bench for 3 months without covering.
[0249] Compared with the bags containing Test formulation 3, the bags containing Benchmark formulation 5 and Benchmark formulation 6 are significantly lighter in color. Compared with other bags, the bags containing rhamnolipid and the colorant Acid Blue 3 exhibit better color brilliance.
[0250] Additional embodiments of the formulation:
[0251] Prepare additional exemplary liquid detergent compositions containing rhamnolipid according to the formulations described in the following table. All exemplary formulations were then used to obtain water-soluble detergent bags. Thus, two pieces of water-soluble PVOH film were heat-sealed from three sides using a manual sealing device to form small bags with dimensions of 6 cm x 10 cm. Subsequently, 25 grams of liquid detergent solution (formulations 1 - 26) were filled into the prepared small bags and sealed with a heat-sealing device. The outer edges outside the sealed edges were removed by cutting to form the final small bags.
[0252] The rhamnolipid used was rhamnolipid REWOFERM SL ONE from Evonik, which has a lactone to acid ratio of 40:60.
[0253] Glucosyl lipid was produced by fermentation according to Example 2 of WO2019154970.
[0254]
[0255]
[0256]
[0257]
[0258]
[0259]
[0260]
[0261]
[0262]
[0263]
[0264]
[0265]
Claims
1. A detergent compartment bag having at least one water-soluble film forming at least one compartment, wherein the at least one compartment contains a liquid composition, the liquid composition comprising at least one biosurfactant, characterized in that The water-soluble film contains polyvinyl alcohol.
2. The bag according to claim 1, wherein The biosurfactant is selected from rhamnolipids, glucolipids, and sophorolipids, preferably rhamnolipids and glucolipids, and most preferably rhamnolipids.
3. The bag according to claim 1 or 2, characterized in that The biosurfactant is selected from rhamnolipids, which contains 51% to 100% by weight, preferably 60% to 95% by weight, particularly preferably 80% to 90% by weight of monorhamnolipid, or 71% to 100% by weight, preferably 75% to 95% by weight, particularly preferably 80% to 90% by weight of dirhamnolipid where the weight percentages are based on the total sum of all rhamnolipids contained in the liquid composition.
4. The bag according to any one of the preceding claims, characterized in that The biosurfactant is contained in the liquid composition in an amount of 0.1% to 50% by weight, preferably 1.0% to 20% by weight, more preferably 5.0% to 15% by weight, where the weight percentages are based on the total liquid composition.
5. The bag according to any one of the preceding claims, characterized in that It contains at least one non-biosurfactant in the liquid composition, which is preferably selected from anionic surfactants, cationic surfactants, non-ionic surfactants, semi-polar surfactants, amphoteric surfactants, and zwitterionic surfactants.
6. The bag according to claim 5, wherein The biosurfactant is contained in the liquid composition in an amount of 50% to 100% by weight, preferably 60% to 98% by weight, more preferably 80% to 95% by weight, where the weight percentages are based on the total sum of all surfactants contained in the liquid composition.
7. The bag according to any one of the preceding claims, characterized in that The liquid composition contains at least one water-soluble dye.
8. The bag according to claim 7, characterized in that The water-soluble dye is selected from Acid Blue 1, Acid Blue 3, Acid Blue 7, Acid Blue 145, Acid Blue 182, Acid Blue 185, Acid Blue 193, C.I. Acid Blue 9, C.I. Acid Blue 93, C.I. Pigment Blue 29, C.I. Solvent Blue 3, and C.I. Reactive Blue 116.
9. The bag according to any one of the preceding claims, characterized in that The liquid composition contains water in an amount of 0.1% to 25% by weight, preferably 8.0% to 20% by weight, more preferably 16% to 19% by weight, where the weight percentages are based on the total liquid composition.
10. The bag according to any one of the preceding claims, characterized in that The liquid composition contains less than 15% by weight, preferably less than 10% by weight, more preferably 0.01% to 4.0% by weight of monoethanolamine (MEA), where the weight percentages are based on the total liquid composition.
11. The bag according to any one of the preceding claims, characterized in that The polyvinyl alcohol has a degree of hydrolysis of 70 mol% to 100 mol%, preferably 80 mol% to 90 mol%, particularly preferably 81 mol% to 89 mol%, especially 82 mol% to 88 mol%.
12. The bag according to any one of the preceding claims, characterized in that The polyvinyl alcohol has a molecular weight in the range of 10,000 g / mol to 100,000 g / mol, preferably 1,000 g / mol to 90,000 g / mol, particularly preferably 12,000 g / mol to 80,000 g / mol, especially 14,000 g / mol to 68,000 g / mol.
13. The bag according to any one of the preceding claims, characterized in that The water-soluble film comprises the polyvinyl alcohol in an amount of at least 50% by weight, preferably at least 70% by weight, particularly preferably at least 80% by weight, especially at least 92% by weight, wherein the weight percentages are based on the total weight of the water-soluble film.
14. Use of a bag according to any of the preceding claims for cleaning the surface of an article, preferably a textile or fabric.
Citation Information
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