WO2007057085A1 - Environmentally friendly laundry method and kit - Google Patents
Environmentally friendly laundry method and kit Download PDFInfo
- Publication number
- WO2007057085A1 WO2007057085A1 PCT/EP2006/010202 EP2006010202W WO2007057085A1 WO 2007057085 A1 WO2007057085 A1 WO 2007057085A1 EP 2006010202 W EP2006010202 W EP 2006010202W WO 2007057085 A1 WO2007057085 A1 WO 2007057085A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- composition
- laundry
- surfactant
- washing
- rinse aid
- Prior art date
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- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical class [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 1
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- 229940080260 iminodisuccinate Drugs 0.000 description 1
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- 239000002075 main ingredient Substances 0.000 description 1
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 1
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- 238000000691 measurement method Methods 0.000 description 1
- MBKDYNNUVRNNRF-UHFFFAOYSA-N medronic acid Chemical class OP(O)(=O)CP(O)(O)=O MBKDYNNUVRNNRF-UHFFFAOYSA-N 0.000 description 1
- 108010003855 mesentericopeptidase Proteins 0.000 description 1
- LVHBHZANLOWSRM-UHFFFAOYSA-N methylenebutanedioic acid Natural products OC(=O)CC(=C)C(O)=O LVHBHZANLOWSRM-UHFFFAOYSA-N 0.000 description 1
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- MGFYIUFZLHCRTH-UHFFFAOYSA-N nitrilotriacetic acid Chemical class OC(=O)CN(CC(O)=O)CC(O)=O MGFYIUFZLHCRTH-UHFFFAOYSA-N 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000012454 non-polar solvent Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 235000019198 oils Nutrition 0.000 description 1
- 235000014593 oils and fats Nutrition 0.000 description 1
- 150000007530 organic bases Chemical class 0.000 description 1
- HJZKOAYDRQLPME-UHFFFAOYSA-N oxidronic acid Chemical compound OP(=O)(O)C(O)P(O)(O)=O HJZKOAYDRQLPME-UHFFFAOYSA-N 0.000 description 1
- 229960004230 oxidronic acid Drugs 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000003002 pH adjusting agent Substances 0.000 description 1
- 239000006174 pH buffer Substances 0.000 description 1
- VPOLVWCUBVJURT-UHFFFAOYSA-N pentadecasodium;pentaborate Chemical compound [Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[O-]B([O-])[O-].[O-]B([O-])[O-].[O-]B([O-])[O-].[O-]B([O-])[O-].[O-]B([O-])[O-] VPOLVWCUBVJURT-UHFFFAOYSA-N 0.000 description 1
- ATGAWOHQWWULNK-UHFFFAOYSA-I pentapotassium;[oxido(phosphonatooxy)phosphoryl] phosphate Chemical class [K+].[K+].[K+].[K+].[K+].[O-]P([O-])(=O)OP([O-])(=O)OP([O-])([O-])=O ATGAWOHQWWULNK-UHFFFAOYSA-I 0.000 description 1
- 230000008447 perception Effects 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 235000021317 phosphate Nutrition 0.000 description 1
- UEZVMMHDMIWARA-UHFFFAOYSA-M phosphonate Chemical compound [O-]P(=O)=O UEZVMMHDMIWARA-UHFFFAOYSA-M 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229940068041 phytic acid Drugs 0.000 description 1
- 239000000467 phytic acid Substances 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000002798 polar solvent Substances 0.000 description 1
- 239000001205 polyphosphate Substances 0.000 description 1
- 235000011176 polyphosphates Nutrition 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- XAEFZNCEHLXOMS-UHFFFAOYSA-M potassium benzoate Chemical compound [K+].[O-]C(=O)C1=CC=CC=C1 XAEFZNCEHLXOMS-UHFFFAOYSA-M 0.000 description 1
- 159000000001 potassium salts Chemical class 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 230000002335 preservative effect Effects 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 235000019260 propionic acid Nutrition 0.000 description 1
- 230000002797 proteolythic effect Effects 0.000 description 1
- 229940024999 proteolytic enzymes for treatment of wounds and ulcers Drugs 0.000 description 1
- DNXIASIHZYFFRO-UHFFFAOYSA-N pyrazoline Chemical compound C1CN=NC1 DNXIASIHZYFFRO-UHFFFAOYSA-N 0.000 description 1
- 150000003856 quaternary ammonium compounds Chemical class 0.000 description 1
- 150000004023 quaternary phosphonium compounds Chemical class 0.000 description 1
- IUVKMZGDUIUOCP-BTNSXGMBSA-N quinbolone Chemical compound O([C@H]1CC[C@H]2[C@H]3[C@@H]([C@]4(C=CC(=O)C=C4CC3)C)CC[C@@]21C)C1=CCCC1 IUVKMZGDUIUOCP-BTNSXGMBSA-N 0.000 description 1
- 150000003377 silicon compounds Chemical class 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 229910001388 sodium aluminate Inorganic materials 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M sodium chloride Inorganic materials [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- 239000001509 sodium citrate Substances 0.000 description 1
- NLJMYIDDQXHKNR-UHFFFAOYSA-K sodium citrate Chemical compound O.O.[Na+].[Na+].[Na+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O NLJMYIDDQXHKNR-UHFFFAOYSA-K 0.000 description 1
- 235000010267 sodium hydrogen sulphite Nutrition 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- 239000004328 sodium tetraborate Substances 0.000 description 1
- 235000010339 sodium tetraborate Nutrition 0.000 description 1
- 235000019832 sodium triphosphate Nutrition 0.000 description 1
- HWCHICTXVOMIIF-UHFFFAOYSA-M sodium;3-(dodecylamino)propanoate Chemical compound [Na+].CCCCCCCCCCCCNCCC([O-])=O HWCHICTXVOMIIF-UHFFFAOYSA-M 0.000 description 1
- 239000013042 solid detergent Substances 0.000 description 1
- 239000000600 sorbitol Substances 0.000 description 1
- 235000012424 soybean oil Nutrition 0.000 description 1
- 238000001694 spray drying Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 125000004079 stearyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 235000021286 stilbenes Nutrition 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-L sulfite Chemical class [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 description 1
- DIORMHZUUKOISG-UHFFFAOYSA-N sulfoformic acid Chemical compound OC(=O)S(O)(=O)=O DIORMHZUUKOISG-UHFFFAOYSA-N 0.000 description 1
- 150000003871 sulfonates Chemical class 0.000 description 1
- 125000001273 sulfonato group Chemical group [O-]S(*)(=O)=O 0.000 description 1
- 150000003457 sulfones Chemical class 0.000 description 1
- 239000003760 tallow Substances 0.000 description 1
- 150000004026 tertiary sulfonium compounds Chemical class 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- BDOBMVIEWHZYDL-UHFFFAOYSA-N tetrachlorosalicylanilide Chemical compound OC1=C(Cl)C(Cl)=C(Cl)C(Cl)=C1C(=O)NC1=CC=CC=C1 BDOBMVIEWHZYDL-UHFFFAOYSA-N 0.000 description 1
- JZBRFIUYUGTUGG-UHFFFAOYSA-J tetrapotassium;2-[2-[bis(carboxylatomethyl)amino]ethyl-(carboxylatomethyl)amino]acetate Chemical class [K+].[K+].[K+].[K+].[O-]C(=O)CN(CC([O-])=O)CCN(CC([O-])=O)CC([O-])=O JZBRFIUYUGTUGG-UHFFFAOYSA-J 0.000 description 1
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 1
- 238000005809 transesterification reaction Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 150000003852 triazoles Chemical class 0.000 description 1
- 235000013799 ultramarine blue Nutrition 0.000 description 1
- KJIOQYGWTQBHNH-UHFFFAOYSA-N undecanol Chemical class CCCCCCCCCCCO KJIOQYGWTQBHNH-UHFFFAOYSA-N 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
- 230000002087 whitening effect Effects 0.000 description 1
- 229910009112 xH2O Inorganic materials 0.000 description 1
- 238000004383 yellowing Methods 0.000 description 1
- 239000010457 zeolite Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/38—Products with no well-defined composition, e.g. natural products
- C11D3/386—Preparations containing enzymes, e.g. protease or amylase
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/66—Non-ionic compounds
- C11D1/74—Carboxylates or sulfonates esters of polyoxyalkylene glycols
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/66—Non-ionic compounds
- C11D1/83—Mixtures of non-ionic with anionic compounds
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/0005—Other compounding ingredients characterised by their effect
- C11D3/0026—Low foaming or foam regulating compositions
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/38—Products with no well-defined composition, e.g. natural products
- C11D3/386—Preparations containing enzymes, e.g. protease or amylase
- C11D3/38627—Preparations containing enzymes, e.g. protease or amylase containing lipase
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/02—Anionic compounds
- C11D1/12—Sulfonic acids or sulfuric acid esters; Salts thereof
- C11D1/22—Sulfonic acids or sulfuric acid esters; Salts thereof derived from aromatic compounds
Definitions
- the present invention relates to laundry methods and laundry kits based on laundry detergent compositions comprising alkoxylated carboxylic acid ester surfactants and laundry rinse aid compositions comprising certain hydrolases.
- Environmentally friendly cleaning products including laundry products, are becoming increasingly in demand. Many restrictions on formulations are imposed by environmental laws, by universal need to conserve water, by higher prices for non- renewable chemical sources, and by increasing consumer awareness and preference for environmentally friendly products.
- laundry cleaning which employs an alkoxylated ester surfactant for cleaning and subsequently reduces foaming is highly desirable. That is, an environmentally friendly way of achieving cleaning, yet also removing foaming is needed.
- compositions in some instances laundry compositions, that may include various, broadly ranging carboxylic acid esters and/or alkoxylated derivatives thereof: Koester et al . (U.S. Patent 6,384,009), Hees et al . (U.S. Patent 5,753,606), WO 01/10391, WO 96/23049, WO 94/13618, Miyajima et al . (U.S. Patent 6,417,146), JP 9078092, JP 9104895, JP 8157897, JP 8209193 and JP 3410880.
- the present invention includes a method of washing laundry, the method comprising washing laundry in an aqueous medium with two separate compositions:
- the invention also includes laundry kits based on the laundry detergent and the rinse aid compositions.
- any particular upper concentration can be associated with any particular lower concentration.
- Liquid as used herein means that a continuous phase or predominant part of the composition is liquid and that a composition is flowable at 15°C and above (i.e., suspended solids may be included) . Gels are included in the definition of liquid compositions as used herein.
- Wash load as used herein means the weight of apparel, clothes, towels, garment, and other articles that are washed either in a wash machine or other container.
- Substantial reduction of foaming means that the foam height of the wash liquor reduces by at least 50%, preferably by at least 70% and most preferably by more than 90% in comparison to the initial wash condition (no contact between ester surfactant and carboxylic ester hydrolase enzyme) , measured by the Ross-Miles Foam method at the 5-minute interval .
- inventive laundry method and laundry kit employ laundry detergent composition comprising an alkoxylated carboxylic acid ester and rinse aid composition comprising a carboxylic ester hydrolase enzyme.
- a laundry detergent composition comprising an alkoxylated ester surfactant, along with or followed by, the use of a rinse aid composition comprising a carboxylate ester hydrolase enzyme
- an environmentally friendly cleaning is made possible, since a preferred surfactant is employed, and furthermore foaming can be effectively reduced using the minimum amount of water.
- the de-foaming of the detergent is achieved by the action of the carboxylate ester hydrolase enzyme on the alkoxylated ester surfactant to decompose the surfactant, which results in the production, inter alia, of a soap/fatty acid which acts as a de-foamer.
- the decomposition reaction follows a kinetic route and is dependent on temperature, relative concentrations of the ester surfactant and ester hydrolase enzyme, pH and degree of agitation.
- temperature of water is in the range of from 4 to 60 0 C, preferably 10 to 45°C and the weight ratio of the hydrolase enzyme to the ester surfactant is in the range of from 0.00001 to 1, preferably from 0.0001 to 0.1.
- the composition is designed and controlled so that the decomposition is sufficiently delayed to achieve cleaning, as it will only start at about 1 to 25 minute point, allowing the surfactant to work on the stains/soils, yet it will allow for the de-foaming of the surfactant by about 5 to 60 minute point.
- the composition is designed and controlled that the decomposition is started at about 0.01 to 10 minutes point and allow for the de-foaming of the surfactant by 0.05 to 15 minutes for easy rinsing.
- the rinse aid composition is formulated to fit various wash machines, conditions and habits. In addition, the timing of the addition of rinse aid may also be used as a control of time for efficient wash.
- the detergent composition and the rinse aid composition are introduced at the start or in the middle of the washing cycle.
- one rinse or no rinsing cycle is needed after the washing cycle.
- the rinse aid composition is added after the laundry has been washed with the laundry detergent composition and the wash liquor wrung out, typically during a rinsing step.
- washing of the laundry may be conducted without a separate rinsing step, after the introduction of the inventive detergent composition and the rinse aid composition.
- Both embodiments of the inventive method may be carried out by hand or using an automatic laundry machine, or a mixed method (e.g. using the machine for washing and wringing out, but rinsing by hand) .
- the rinse cycle duration is generally at least 3 and at most 30 minutes.
- a single rinse with a reasonably short time in general from 3 to 30 minutes, preferably from 5 to 20 minutes, most preferably from 6 to 15 minutes is employed, with the rinse aid added composition added in the rinse cycle.
- the inventive method employs a front loading washing machine.
- the front loading washing machines employ lower volumes of water than the top loading washing machine .
- a single rinse is sufficient.
- the volume of the aqueous rinse medium is from 10 to 100 liters preferably.
- the volume is from 8 to 30 liters for front loading laundry washing machines, preferably from 10 to 25 liters.
- wash load to wash/rinse liquor weight ratio is from 0.01 to 1, preferably from 0.05 to 0.8, and most preferably from 0.1 to 0.5.
- the range for wash load to wash/rinse water ratio is about the same.
- ALKOXYLATED CARBOXYLIC ACID ESTERS also sometimes referred to herein as “alkoxylated esters” included in the present invention have Formula (I) as follows: O
- R x is selected from linear or branched Cg to C 22 alkyl or alkylene groups
- R 2 are selected from C 2 H 4 or C 3 H 6 groups
- R 3 are selected from H, CH 3 t C 2 H 5 or C 3 H 7 groups; and n has a value between 1 and 20.
- Ri is selected from Ci 2 to Ci 8
- R 2 is C 2 H 4
- R 3 is selected from CH 3 and C 2 H 5 , and n is a value between 3 and 15, most preferably from 5 to 12.
- the preferred compounds of formula (I) in the inventive compositions are selected from alkoxylated derivatives derived from coconut, palm, palm kernel, palm stearin, tallow, soybean and rapeseed oil due to their availability.
- Carboxylic acid esters are available commercially or may be prepared by the trans-esterification of glycerides, preferrably from natural oil or fat, and the esterification of carboxylic acid with alcohol, e.g. methanol or ethanol, to form carboxylic acid ester; the alkoxylated derivatives may be obtained by the alkoxylation of carboxylic acid ester with alkylene oxide with the presence of catalyst.
- Carboxylic acid esters are also widely available as "bio-diesel" . Twin Rivers Technologies provides various types of carboxylic acid esters. Huntsman provides various alkoxylated carboxylic methyl esters.
- the amount of the alkoxylated ester employed in the laundry detergent compositions is in the range of from 1% to 80%, preferably from 2% to 50%, most preferably from 3% to 20%, optimally from 4% to 15%, by weight of the composition.
- a detergent composition may contain a non-ester surfactant.
- the products from the decomposition of ester surfactant, soap/fatty acid, are solubilized by other surfactants, especially non-ester surfactants, and reduce/remove foam as a general defoamer.
- the laundry detergent' surfactant is comprised of sufficient amount of the alkoxylated carboxylic acid ester surfactant.
- the concentration of alkoxylated esters in an aqueous wash liquor preferably in the range of from 1 ppm to 200,000 ppm.
- concentration of the surfactant in a wash liquid is in the range of from 10 ppm to 50,000 ppm, most preferably from 100,000 ppm to 5,000 ppm.
- Suitable enzymes for the invention are selected from hydrolases classified under the Enzyme Classification number E. C. 3.1.1 (Carboxylic Ester Hydrolases) as described by the Nomenclature Committee of the International Union of Biochemistry and Molecular Biology (NCIUBMB) . (http://www.chem.qmul .ac.uk/iubmb/) .
- This family of enzymes catalyzes the hydrolysis of carboxylic acid esters with the formation of a carboxylic acid and an alcohol.
- the preferred hydrolases are carboxylesterases (EC 3.1.1.1), triacylglycerol lipase (EC 3.1.1.3), lipoprotein lipase (EC 3.1.1.34), and cutinase (EC 3.1.1.74) are included in the rinse aid composition.
- carboxylesterases EC 3.1.1.1
- triacylglycerol lipase EC 3.1.1.3
- lipoprotein lipase EC 3.1.1.34
- cutinase EC 3.1.1.74
- brand name enzymes Lipolase ® (EC 3.1.1.3), Lipex ® (EC 3.1.1.3), Cutinase ® (3.1.1.74), and Esterase ® (EC 3.1.1.1) are employed.
- the amount of the carboxylic ester hydrolases in the rinse aid composition is in the range of from 0.001% to about 100%, preferably from 0.1% to 50% and most preferably from 1% to 10% to effect the substantial defoaming under the most economically feasible conditions.
- the amount of the carboxylic ester hydrolases in the aqueous wash (or rinse) liquid is from 0.1 ppm to 500 ppm, preferably from 0.5 ppm to 100 ppm and most preferably from 1 ppm to 25 ppm.
- the amounts of the enzymes are based on the commercially available enzyme preparations: i.e., "100% enzyme” means "100% of the commercial preparation.”
- Commercial preparations typically contain additional ingredients, such as diluents, stabilizers, and others.
- the inventive laundry kit employs a detergent composition comprising an alkoxylated ester surfactant in conjunction with the rinse aid composition comprising a carboxylate ester hydrolase enzyme.
- the detergent composition may be a solid or a liquid.
- the detergent composition is a liquid composition, which is preferred by consumers over powders.
- the liquid composition is advantageous when the laundry detergent composition and the rinse aid are both introduced at the start of the wash, to accelerate the cleaning action of the surfactant on clothes, to avoid the time span required to solubilise and disperse the surfactant out of solid compositions, since only limited time is available before the start of the decomposition of the surfactant.
- the hydrolase-containing rinse aid composition needs to be physically segregated from the detergent composition containing the ester surfactant, to prevent the decomposition of the surfactant on storage. Such decomposition may occur even in a solid composition containing both the alkoxylated surfactant and the hydrolase enzyme - due to humidity, or poor storage conditions.
- the inventive laundry kit may include a jointly marketed product containing two separate containers. The kit may also include separately marketed laundry detergent composition and rinse aid composition or refills, which both contain instructions for joint use. Another embodiment of the inventive kit is a single package with a dual dispenser. The inventive laundy kit may combine solid detergent with liquid rinse aid, or liquid detergent with solid rinse aid. Of course, solid/solid and liquid/liquid permutations are also imcluded.
- the wash and/or rinse water temperature used in the inventive method is typically within the range of from 4 to 60 0 C, preferably from 10 to 45°C.
- Laundry detergent compositions included in the present invention may contain the following ingredients, besides an alkoxylated ester surfactant.
- the overall amount of surfactant in the inventive compositions is generally in the range of from 5 to 80%, preferably from 10 to 60%, most preferably from 15 to 50%.
- the alkoxylated ester of the present invention is a nonionic surfactant.
- the alkoxylated ester may be the sole surfactant in the composition, or may be co-present with other surfactants.
- the alkoxylated ester surfactant is included in the inventive compositions in combination with anionic, cationic and amphoteric surfactant, most preferably anionic surfactant.
- the preferred ratio of alkoxylated ester surfactant to the sum of other surfactants is between 5:1 to 1:5, and more preferably between 3:1 to 1:3.
- any surfactant described below may be used in combination with any other surfactant or surfactants.
- Anionic surface active agents which may be used in the present invention are those surface active compounds which contain a long chain hydrocarbon hydrophobic group in their molecular structure and a hydrophilic group, i.e. water soluble group such as carboxylate, sulfonate or sulfate group or their corresponding acid form.
- the anionic surface active agents include the alkali metal (e.g. sodium and potassium) and nitrogen based bases (e.g. mono-amines and polyamines) salts of water soluble higher alkyl aryl sulfonates, alkyl sulfonates, alkyl sulfates and the alkyl polyether sulfates. They may also include fatty acid or fatty acid soaps.
- One of the preferred groups of mono-anionic surface active agents are the alkali metal, ammonium or alkanolamine salts of higher alkyl aryl sulfonates and alkali metal, ammonium or alkanolamine salts of higher alkyl sulfates or the mono-anionic polyamine salts.
- Preferred higher alkyl sulfates are those in which the alkyl groups contain 8 to 26 carbon atoms, preferably 12 to 22 carbon atoms and more preferably 14 to 18 carbon atoms.
- the alkyl group in the alkyl aryl sulfonate preferably contains 8 to 16 carbon atoms and more preferably 10 to 15 carbon atoms.
- a particularly preferred alkyl aryl sulfonate is the sodium, potassium or ethanolamine Ci 0 to C 16 benzene sulfonate, e.g. sodium linear dodecyl benzene sulfonate.
- the primary and secondary alkyl sulfates can be made by reacting long chain olefins with sulfites or bisulfites, e.g. sodium bisulfite.
- the alkyl sulfonates can also be made by reacting long chain normal paraffin hydrocarbons with sulfur dioxide and oxygen as describe in U.S. Patent Nos . 2,503,280, 2,507,088, 3,372,188 and 3,260,741 to obtain normal or secondary higher alkyl sulfates suitable for use as surfactant detergents.
- the alkyl substituent is preferably linear, i.e. normal alkyl, however, branched chain alkyl sulfonates can be employed, although they are not as good with respect to biodegradability.
- the alkane, i.e. alkyl, substituent may be terminally sulfonated or may be joined, for example, to the 2-carbon atom of the chain, i.e. may be a secondary sulfonate. It is understood in the art that the substituent may be joined to any carbon on the alkyl chain.
- the higher alkyl sulfonates can be used as the alkali metal salts, such as sodium and potassium.
- the preferred salts are the sodium salts.
- the preferred alkyl sulfonates are the C 10 to C 18 primary normal alkyl sodium and potassium sulfonates, with the C 10 to C 15 primary normal alkyl sulfonate salt being more preferred.
- the higher alkyl polyethoxy sulfates used in accordance with the present invention can be normal or branched chain alkyl and contain lower alkoxy groups which can contain two or three carbon atoms.
- the normal higher alkyl polyether sulfates are preferred in that they have a higher degree of biodegradability than the branched chain alkyl and the lower poly alkoxy groups are preferably ethoxy groups .
- R 1 is C 8 to C 2 o alkyl, preferably C 10 to Ci 8 and more preferably C 12 to C 15 ; p is 1 to 8, preferably 2 to 6, and more preferably 2 to 4; and M is an alkali metal, such as sodium and potassium, an ammonium cation or polyamine .
- the sodium and potassium salts, and polyaimines are preferred.
- a preferred higher alkyl poly ethoxylated sulfate is the sodium salt of a triethoxy C 12 to Ci 5 alcohol sulfate having the formula :
- alkyl ethoxy sulfates examples include Ci 2-15 normal or primary alkyl triethoxy sulfate, sodium salt; n-decyl diethoxy sulfate, sodium salt; C 12 primary alkyl diethoxy sulfate, ammonium salt; Ci 2 primary alkyl triethoxy sulfate, sodium salt; Cis primary alkyl tetraethoxy sulfate, sodium salt; mixed Ci 4-I5 normal primary alkyl mixed tri- and tetraethoxy sulfate, sodium salt; stearyl pentaethoxy sulfate, sodium salt; and mixed Ci 0-I8 normal primary alkyl triethoxy sulfate, potassium salt.
- the normal alkyl ethoxy sulfates are readily biodegradable and are preferred.
- the alkyl poly-lower alkoxy sulfates can be used in mixtures with each other and/or in mixtures with the above discussed higher alkyl benzene, sulfonates, or alkyl sulfates.
- the anionic surfactant is present in an amount of from 0 to 70%, preferably at least 5%, generally from 5 to 50%, more preferably from 5 to 20%.
- Nonionic surfactants in addition to the alkoxylated ester surfactants may be included.
- nonionic surfactants are characterized by the presence of a hydrophobic group and an organic hydrophilic group and are typically produced by the condensation of an organic aliphatic or alkyl aromatic hydrophobic compound with ethylene oxide (hydrophilic in nature) .
- Typical suitable nonionic surfactants are those disclosed in U.S. Patent Nos . 4,316,812 and 3,630,929, incorporated by reference herein.
- the nonionic surfactants are polyalkoxylated lipophiles wherein the desired hydrophile-lipophile balance is obtained from addition of a hydrophilic poly-alkoxy group to a lipophilic moiety.
- a preferred class of nonionic detergent is the alkoxylated alkanols wherein the alkanol is of 9 to 20 carbon atoms and wherein the number of moles of alkylene oxide (of 2 or 3 carbon atoms) is from 3 to 20. Of such materials it is preferred to employ those wherein the alkanol is a fatty alcohol of 9 to 11 or 12 to 15 carbon atoms and which contain from 5 to 9 or 5 to 12 alkoxy groups per mole. Also preferred is paraffin - based alcohol (e.g. nonionics from Huntsman or Sassol) .
- Exemplary of such compounds are those wherein the alkanol is of 10 to 15 carbon atoms and which contain about 5 to 12 ethylene oxide groups per mole, e.g. Neodol 25-9 and Neodol 23-6.5, which products are made by Shell Chemical Company, Inc.
- the former is a condensation product of a mixture of higher fatty alcohols averaging about 12 to 15 carbon atoms, with about 9 moles of ethylene oxide and the latter is a corresponding mixture wherein the carbon atoms content of the higher fatty alcohol is 12 to 13 and the number of ethylene oxide groups present averages about 6.5.
- alkoxylated surfactants which can be used contain a precise alkyl chain length rather than an alkyl chain distribution of the alkoxylated surfactants described above. Typically, these are referred to as narrow range alkoxylates. Examples of these include the Neodol -1 ⁇ R) series of surfactants manufactured by Shell Chemical Company.
- Nonionics are represented by the commercially well known class of nonionics sold under the trademark Plurafac* by BASF.
- the Plurafacs ® are the reaction products of a higher linear alcohol and a mixture of ethylene and propylene oxides, containing a mixed chain of ethylene oxide and propylene oxide, terminated by a hydroxyl group. Examples include Ci 3 -Ci 5 fatty alcohol condensed with 6 moles ethylene oxide and 3 moles propylene oxide, Ci 3 -Ci 5 fatty alcohol condensed with 7 moles propylene oxide and 4 moles ethylene oxide, Ci 3 -Ci 5 fatty alcohol condensed with 5 moles propylene oxide and 10 moles ethylene oxide or mixtures of any of the above.
- Dobanol ® 91-5 is an ethoxylated C 9 -Cn fatty alcohol with an average of 5 moles ethylene oxide and Dobanol 25-7 is an ethoxylated C 12 -Ci 5 fatty alcohol with an average of 7 moles ethylene oxide per mole of fatty alcohol .
- preferred nonionic surfactants include the C 12 -Ci 5 primary fatty alcohols with relatively narrow contents of ethylene oxide in the range of from about 5 to 9 moles, and the C 9 to Cu fatty alcohols ethoxylated with about 5-6 moles ethylene oxide.
- glycoside surfactants Another class of nonionic surfactants which can be used in accordance with this invention are glycoside surfactants.
- Glycoside surfactants suitable for use in accordance with the present invention include those of the formula:
- R is a monovalent organic radical containing from about 6 to about 30 (preferably from about 8 to about 18) carbon atoms;
- R 2 is a divalent hydrocarbon radical containing from about 2 to 4 carbons atoms;
- 0 is an oxygen atom;
- y is a number which can have an average value of from 0 to about 12 but which is most preferably zero;
- Z is a moiety derived from a reducing saccharide containing 5 or 6 carbon atoms; and
- x is a number having an average value of from 1 to about 10 (preferably from about 1 1/2 to about 10) .
- a particularly preferred group of glycoside surfactants for use in the practice of this invention includes those of the formula above in which R is a monovalent organic radical (linear or branched) containing from about 6 to about 18 (especially from about 8 to about 18) carbon atoms; y is zero; z is glucose or a moiety derived therefrom; x is a number having an average value of from 1 to about 4 (preferably from about 1 1/2 to 4) .
- Nonionic surfactants which may be used include polyhydroxy amides as discussed in U.S. Patent No. 5,312,954 to Letton et al . and aldobionamides such as disclosed in U.S. Patent No. 5,389,279 to Au et al . , both of which are hereby incorporated by reference into the subject application.
- Mixtures of two or more of the nonionic surfactants can be used.
- nonionics other than alkoxylated esters required by the present invention
- the level of nonionic surfactant may be lowered compared to the typical compositions, due to the unexpected advantage of the alkoxylated ester surfactants contribution to the oily soil removal.
- Preferred inventive compositions comprise both anionic and nonionic surfactants, typically in a weight ratio of from 1:4 to 4:1.
- cationic surfactants are known in the art, and almost any cationic surfactant having at least one long chain alkyl group of about 10 to 24 carbon atoms is suitable in the present invention. Such compounds are described in "Cationic
- compositions of the invention may use cationic surfactants alone or in combination with any of the other surfactants known in the art.
- compositions may contain no cationic surfactants at all.
- Ampholytic synthetic surfactants can be broadly described as derivatives of aliphatic or aliphatic derivatives of heterocyclic secondary and tertiary amines in which the aliphatic radical may be straight chain or branched and wherein one of the aliphatic substituents contains from about 8 to 18 carbon atoms and at least one contains an anionic water-soluble group, e.g. carboxylate, sulfonate, sulfate.
- Examples of compounds falling within this definition are sodium 3- (dodecylamino) propionate, sodium 3- (dodecylamino) propane-1-sulfonate, sodium 2- (dodecylamino) ethyl sulfate, sodium 2- (dimethylamino) octadecanoate, disodium 3- (N-carboxymethyldodecylamino) propane 1-sulfonate, disodium octadecyl-imminodiacetate, sodium l-carboxymethyl-2- undecylimidazole, and sodium N,N-bis (2-hydroxyethyl) -
- Zwitterionic surfactants can be broadly described as derivatives of secondary and tertiary amines, derivatives of heterocyclic secondary and tertiary amines, or derivatives of quaternary ammonium, quaternary phosphonium or tertiary sulfonium compounds.
- the cationic atom in the quaternary- compound can be part of a heterocyclic ring. In all of these compounds there is at least one aliphatic group, straight chain or branched, containing from about 3 to 18 carbon atoms and at least one aliphatic substituent containing an anionic water-soluble group, e.g., carboxy, sulfonate, sulfate, phosphate, or phosphonate.
- laundry detergent compositions included in the present invention are liquid, then they contain water as major solvent.
- inventive compositions comprise generally from 15% to 90%, preferably from 30% to 80%, most preferably, to achieve optimum cost and ease of manufacturing, from 40% to 70% of water.
- Other liquid components such as solvents, surfactants, liquid organic matters including organic bases, and their mixtures can be co-present.
- Solvents that may be present include but are not limited to alcohols, surfactant, fatty alcohol ethoxylated sulfate or surfactant mixtures, alkanol amine, polyamine, other polar or non-polar solvents, and mixtures thereof.
- inventive compositions may include an additional laundry ingredient selected from the group consisting of enzyme, fluorescent agent, soil release polymer, anti-redeposition polymer, anti- dye transfer agents and mixtures thereof. These are described in greater detail below. Builders/Electrolytes
- Builders which can be used according to this invention include conventional alkaline detergency builders, inorganic or organic, which should be used at levels from about 0.1% to about 20.0% by weight of the composition, preferably from 1.0% to about 10.0% by weight, more preferably 2% to 5% by weight.
- Electrolyte may also be a detergency builder, such as the inorganic builder sodium tripolyphosphate, or it may be a non- functional electrolyte such as sodium sulphate or chloride.
- the inorganic builder comprises all or part of the electrolyte. That is the term electrolyte encompasses both builders and salts .
- suitable inorganic alkaline detergency builders which may be used are water-soluble alkali metal phosphates, polyphosphates, borates, silicates and also carbonates.
- suitable salts are sodium and potassium triphosphates, pyrophosphates, orthophosphates, hexametaphosphates, tetraborates, silicates and carbonates.
- Suitable organic alkaline detergency builder salts are: (1) water-soluble amino polycarboxylates, e.g., sodium and potassium ethylenediaminetetraacetates, nitrilotriacetates and N- (2 hydroxyethyl) - nitrilodiacetates; (2) water-soluble salts of phytic acid, e.g., sodium and potassium phytates (see U.S. Patent No.
- water-soluble polyphosphonates including specifically, sodium, potassium and lithium salts of ethane-1-hydroxy-1, 1-diphosphonic acid; sodium, potassium and lithium salts of methylene diphosphonic acid; sodium, potassium and lithium salts of ethylene diphosphonic acid; and sodium, potassium and lithium salts of ethane- 1, 1, 2-triphosphonic acid.
- alkali metal salts of ethane-2-carboxy-l 1-diphosphonic acid hydroxymethanediphosphonic acid, carboxyl diphosphonic acid, ethane- 1- hydroxy- 1, 1, 2 -triphosphonic acid, ethane-2 -hydroxy- 1, 1, 2 -triphosphonic acid, propane- 1, 1, 3, 3-tetraphosphonic acid, propane- 1, 1 , 2 , 3-tetraphosphonic acid, and propane-1 , 2 , 2 , 3-tetraphosphonic acid; (4) water-soluble salts of polycarboxylate polymers and copolymers as described in U.S. Patent No 3,308,067.
- polycarboxylate builders can be used satisfactorily, including water-soluble salts of mellitic acid, citric acid, and carboxymethyloxysuccinic acid, imino disuccinate, salts of polymers of itaconic acid and maleic acid, tartrate monosuccinate, tartrate disuccinate and mixtures thereof .
- Sodium citrate is particularly preferred, to optimize the function vs. cost, in an amount of from 0 to 15%, preferably from 1 to 10%.
- zeolites or aluminosilicates can be used.
- One such aluminosilicate which is useful in the compositions of the invention is an amorphous water- insoluble hydrated compound of the formula (NaAlO 2 ) x . (SiO 2 ) y , wherein x is a number from 1.0 to 1.2 and y is 1, said amorphous material being further characterized by a Mg++ exchange capacity of from about 50 mg eq. CaCO 3 /g. and a particle diameter of from about 0.01 micron to about 5 microns.
- This ion exchange builder is more fully described in British Pat. No. 1,470,250.
- a second water-insoluble synthetic aluminosilicate ion exchange material useful herein is crystalline in nature and has the formula Na 2 L(AlO 2 ) Y -(SiO 2 )J x H 2 O, wherein z and y are integers of at least 6; the molar ratio of z to y is in the range from 1.0 to about 0.5, and x is an integer from about 15 to about 264; said aluminosilicate ion exchange material having a particle size diameter from about 0.1 micron to about 100 microns; a calcium ion exchange capacity on an anhydrous basis of at least about 200 milligrams equivalent of CaCO 3 hardness per gram; and a calcium exchange rate on an anhydrous basis of at least about 2 grains/gallon/minute/gram.
- These synthetic aluminosilicates are more fully described in British Patent No. 1,429,143.
- Enzymes One or more enzymes, in addition to the hydrolases as described in detail below, may be used in the compositions of the invention.
- a lipase it has to be isolated from the alkoxylated ester surfactant in the inventive compositions, either by encapsulation or in separate compartments due to the ability of lipase to decompose esters.
- the lipolytic enzyme may be either a fungal lipase producible by Humicola lanuginosa and Thermomyces lanuginosa, or a bacterial lipase which shows a positive immunological cross-reaction with the antibody of the lipase produced by the microorganism Chromobacter viscosum var. lipolyticum NRRL B-3673.
- a fungal lipase as defined above is the lipase ex Humicola lanuginosa, available from Amano under the tradename Amano CE; the lipase ex Humicola lanuginosa, as described in the aforesaid European Patent Application 0,258,068 (NOVO), as well as the lipase obtained by cloning the gene from Humicola lanuginosa and expressing this gene in Aspergillus oryzae, commercially available from Novozymes under the tradename "Lipolase ® " .
- This Lipolase ® is a preferred lipase for use in the present invention.
- lipase enzymes While various specific lipase enzymes have been described above, it is to be understood that any lipase which can confer the desired lipolytic activity to the composition may be used and the invention is not intended to be limited in any way by specific choice of lipase enzyme.
- the lipases of this embodiment of the invention are included in the detergent composition in such an amount that the final composition has a lipolytic enzyme activity of from 100 to
- 0.005 LU/ml in the wash cycle preferably 25 to 0.05 LU/ml when the formulation is dosed at a level of about .1-10, more preferably .5-7, most preferably 1-2 g/liter.
- lipases can be used in their non-purified form or in a purified form, e.g. purified with the aid of well-known absorption methods, such as phenyl sepharose absorption techniques.
- the proteolytic enzyme can be of vegetable, animal or microorganism origin. Preferably, it is of the latter origin, which includes yeasts, fungi, molds and bacteria. Particularly preferred are bacterial subtilisin type proteases, obtained from e.g. particular strains of Bacillus subtilis and Bacillus lichen!forxnis. Examples of suitable commercially available proteases are Alcalase , Savinase , Esperase , all of Novozymes; Properase ® , Purafect ® and Purafect Prime ® , all of Genencor. The amount of proteolytic enzyme, included in the composition, ranges from 0.05-50,000 GU/mg.
- proteolytic enzymes preferably 0.1 to 50 GU/mg, based on the final composition.
- mixtures of different proteolytic enzymes may be used. While various specific enzymes have been described above, it is to be understood that any protease which can confer the desired proteolytic activity to the composition may be used and this embodiment of the invention is not limited in any way to a specific choice of proteolytic enzyme.
- lipases or proteases In addition to lipases or proteases, it is to be understood that other enzymes such as cellulases, oxidases, amylases, peroxidases, esterases and the like which are well known in the art may also be used with the composition of the invention.
- the enzymes may be used together with co-factors required to promote enzyme activity, i.e., they may be used in enzyme systems, if required.
- enzymes having mutations at various positions e.g., enzymes engineered for performance and/or stability enhancement are also contemplated by the invention.
- the enzyme stabilization system may comprise calcium ion; boric acid, propylene glycol and/or short chain carboxylic acids.
- the composition preferably contains from about 0.01 to about 50, preferably from about 0.1 to about 30, more preferably from about 1 to about 20 millimoles of calcium ion per liter.
- the level of calcium ion should be selected so that there is always some minimum level available for the enzyme after allowing for complexation with builders, etc., in the composition.
- Any water-soluble calcium salt can be used as the source of calcium ion, including calcium chloride, calcium formate, calcium acetate and calcium propionate.
- a small amount of calcium ion is often also present in the composition due to calcium in the enzyme slurry and formula water.
- alkyl carboxylic acid such as formic acid, propionic acid or its salt. When used, this stabilizer may be used in an amount from about 0.1% to about 15% by weight of the composition.
- polyols containing carbon, hydrogen and oxygen atoms are polyols containing carbon, hydrogen and oxygen atoms. They preferably contain from 2 to 6 carbon atoms and from 2 to 6 hydroxy groups . Examples include cis-diols, propylene glycol (especially 1,2 propane diol which is preferred), ethylene glycol, glycerol, sorbitol, mannitol and glucose.
- the polyol generally represents from about 0.1 to 25% by weight, preferably about 1.0% to about 15%, more preferably from about 2% to about 8% by weight of the composition.
- the composition herein may also optionally contain from about 0.25% to about 5%, most preferably from about 0.5% to about 3% by weight of boric acid.
- the boric acid may be, but is preferably not, formed by a compound capable of forming boric acid in the composition. Boric acid is preferred, although other compounds such as boric oxide, borax and other alkali metal borates (e.g., sodium ortho-, meta- and pyroborate and sodium pentaborate) are suitable. Substituted boric acids (e.g., phenylboronic acid, butane boronic acid and a p-bromo phenylboronic acid, and 4-formyl phenyl boronic acid) can also be used in place of boric acid.
- One preferred stabilization system is a polyol in combination with boric acid. Preferably, the weight ratio of polyol to boric acid added is at least 1, more preferably at least about 1.3.
- the inventive compositions preferably include from 0.01% to 2.0%, more preferably from 0.05% to 1.0%, most preferably from 0.05% to 0.5% of a fluorescer.
- suitable fluorescers include but are not limited to derivative of stilbene, pyrazoline, coumarin, carboxylic acid, methinecyamines, dibenzothiophene-5, 5-dioxide azoles, 5-, and 6—membered-ring heterocycles, triazole and benzidine sulfone compositions, especially sulfonated substituted triazinyl stilbene, sulfonated naphthotriazole stilbene, benzidene sulfone, etc.
- UV/stable brighteners for compositions visible in transparent containers
- distyrylbiphenyl derivatives Tinopal ® CBS-X
- detergent additives or adjuvants may be present in the detergent product to give it additional desired properties, either of functional or aesthetic nature.
- Improvements in the physical stability and anti-settling properties of the composition may be achieved by the addition of a small effective amount of an aluminum salt of a higher fatty acid, e.g., aluminum stearate, to the composition.
- the aluminum stearate stabilizing agent can be added in an amount of 0 to 3%, preferably 0.1 to 2.0% and more preferably 0.5 to 1.5%.
- soil suspending or anti-redeposition agents e.g. polyvinyl alcohol, fatty amides, sodium carboxymethyl cellulose, hydroxy-propyl methyl cellulose.
- Additional anti-foam agents e.g. silicon compounds, such as Silicane L 7604, can also be added.
- Bactericides e.g. tetrachlorosalicylanilide and hexachlorophene, fungicides, dyes, pigments (water dispersible) , preservatives, e.g. formalin, ultraviolet absorbers, anti-yellowing agents, such as sodium carboxymethyl cellulose, pH modifiers and pH buffers, color safe bleaches, perfume and dyes and bluing agents such as Iragon Blue L2D, Detergent Blue 472/572 and ultramarine blue can be used.
- preservatives e.g. formalin, ultraviolet absorbers, anti-yellowing agents, such as sodium carboxymethyl cellulose, pH modifiers and pH buffers, color safe bleaches, perfume and dyes and bluing agents
- Iragon Blue L2D Detergent Blue 472/572 and ultramarine blue
- the detergent composition is a colored composition packaged in the transparent/translucent ( "see-through” ) container.
- inventive compositions may be prepared by any method known to one of ordinary skill in the art.
- Surfactants including the alkoxylated ester surfactant are pre-mixed.
- the rest of the ingredients, if any, such as, whitening agent, functional polymers, perfume, enzyme, colorant, preservatives are then mixed to obtain a stable liquid.
- the alkoxylated ester surfactant is preferably not contacted with a strong base, e.g. NaOH, to prevent the pre-mature degradation of the surfactant. If the contact between the alkoxylated ester surfactant and a strong base is necessary, then the contact time should be kept as short as possible.
- Rinse aid compositions included in the invention may be solid or liquid.
- the main ingredient is the ester hydrolase enzyme.
- composition of liquid rinse aid comprises from 0.1% to 100% of commercially available liquid ester hydrolase.
- Liquid rinse aid may preferably also contain water, enzyme stabilizing system, colorant, preservative, buffer, perfume, electrolytes, functional polymer and surfactants.
- the surfactant level is less than 20%, preferably less than 10%, most preferably less than 5%.
- solid rinse aid may also contain colorant, solid carrier, polymer, surfactant, and dissolution aid.
- Liquid rinse aid is preferred over the powder rinse aid, due to its ease and safety of use. Powder may generate enzyme particulate dust and take longer time of dissolve.
- the rinse aid composition included in the present invention may also be dispensed in the form of unit dose.
- LAS linear alkylbenzene sulfonate Lipolase
- KLU lipase unit defined by Novozyme.
- Lipex* A type of lipase ex. Novozyme; Its activity of 100%
- concentration is 100 +/- 20 KLU/g of protein.
- Cutinase ⁇ A type of Cutinase ex. Novozyme; Its activity of 100%
- Savinase A type of protease ex. Novozyme; Its activity of 100% "as is” concentration is 16+/- 4 KNPU-S/g of protein (protease unit defined by Novozyme)
- the alkoxylated ester surfactants decompose to fatty acid and/or soap depending on the pH. Both fatty acid and soap foam less that the alkoxylated ester surfactant—thus, leading to the de-foaming of the wash/rinse liquor.
- Ross-Miles Foam Test method is listed below:
- the tip of the pipet should be at the level of the mark on the cylinder i.e., exactly 90 cm above the 50 ml mark on the receiver.
- Example 1 investigated the effect on the wash liquor containing an alkoxylated ester surfactant of rinse aid without carboxylate ester hydrolase in Comparative Example A (outside the scope of this invention) and rinse aid containing carboxylate ester hydrolase in Example 1 (within the scope of this invention) .
- the same detergent composition was used for Comparative Example A and Example 1.
- the detergent was prepared by first adding water to a mix tank, followed by the addition of 50% NaOH solution and triethanolamine . Subsequently, citric acid 50% solution and LAS acid were added to the tank. After the neutralization, MEE was then added to the tank, mixed until the whole composition became isotropic.
- the rinse composition in Example 1 is prepared by diluting lipase with water to form 5% concentration lipase solution.
- the wash liquor was prepared by diluting 2 g of detergent composition in 1 liter of water. After the full dissolution of the detergent composition, 1 mg of rinse aid was added to the wash liquor. Various contacting time, 30, 60 and 90 minutes was used, before the Ross-Miles foam measurement. The foam height was measured at the initial time, 1, 2, 3, 4, and 5 minutes.
- the wash liquor was prepared by diluting 2 g of detergent composition in 1 liter of water. After the fully dissolution of the detergent composition, various amounts of rinse aid were added to the wash liquor. Various contacting time were used, before the Ross-Miles foam measurement. The foam height was measured at the initial time, 1, 3, and 5 minutes. TABLE 3
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- Engineering & Computer Science (AREA)
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Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BRPI0618660-2A BRPI0618660A2 (en) | 2005-11-16 | 2006-10-23 | washing method |
CA002625950A CA2625950A1 (en) | 2005-11-16 | 2006-10-23 | Environmentally friendly laundry method and kit |
AU2006314866A AU2006314866A1 (en) | 2005-11-16 | 2006-10-23 | Environmentally friendly laundry method and kit |
EP06818277A EP1948768A1 (en) | 2005-11-16 | 2006-10-23 | Environmentally friendly laundry method and kit |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/274,975 US20070111914A1 (en) | 2005-11-16 | 2005-11-16 | Environmentally friendly laundry method and kit |
US11/274,975 | 2005-11-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2007057085A1 true WO2007057085A1 (en) | 2007-05-24 |
Family
ID=37596250
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2006/010202 WO2007057085A1 (en) | 2005-11-16 | 2006-10-23 | Environmentally friendly laundry method and kit |
Country Status (7)
Country | Link |
---|---|
US (1) | US20070111914A1 (en) |
EP (1) | EP1948768A1 (en) |
AU (1) | AU2006314866A1 (en) |
BR (1) | BRPI0618660A2 (en) |
CA (1) | CA2625950A1 (en) |
WO (1) | WO2007057085A1 (en) |
ZA (1) | ZA200803705B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3578628A1 (en) * | 2018-06-06 | 2019-12-11 | Henkel IP & Holding GmbH | Detergent compositions containing a surfactant system including a nonionic and an ionic surfactant |
Families Citing this family (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008116915A1 (en) | 2007-03-27 | 2008-10-02 | Novozymes A/S | Stable enzyme solutions and method of manufacturing |
EP2451919A1 (en) * | 2009-07-09 | 2012-05-16 | The Procter & Gamble Company | Method of laundering fabric using a liquid laundry detergent composition |
EP2451932A1 (en) * | 2009-07-09 | 2012-05-16 | The Procter & Gamble Company | Method of laundering fabric using a compacted laundry detergent composition |
EP2451920A1 (en) * | 2009-07-09 | 2012-05-16 | The Procter & Gamble Company | Method of laundering fabric using a compacted laundry detergent composition |
EP2451925A1 (en) * | 2009-07-09 | 2012-05-16 | The Procter & Gamble Company | Method of laundering fabric using a compacted laundry detergent composition |
US20110005004A1 (en) * | 2009-07-09 | 2011-01-13 | The Procter & Gamble Company | Method of laundering fabric using a compacted liquid laundry detergent composition |
EP2451918A1 (en) * | 2009-07-09 | 2012-05-16 | The Procter & Gamble Company | Method of laundering fabric using a compacted laundry detergent composition |
WO2011005917A1 (en) * | 2009-07-09 | 2011-01-13 | The Procter & Gamble Company | Method of laundering fabric using a liquid laundry detergent composition |
EP2987848A1 (en) * | 2014-08-19 | 2016-02-24 | The Procter & Gamble Company | Method of laundering a fabric |
BR112019016823B1 (en) | 2017-02-13 | 2024-01-02 | Unilever Ip Holdings B.V. | AUXILIARY COMPOSITION FOR FABRIC WASHING, FABRIC WASHING METHOD AND USE OF THE AUXILIARY COMPOSITION FOR FABRIC WASHING |
US11208617B2 (en) | 2017-02-13 | 2021-12-28 | Conopco, Inc. | Laundry composition additive |
PL3580318T3 (en) * | 2017-02-13 | 2023-10-02 | Unilever Ip Holdings B.V. | Method of delivering a laundry composition |
EP3750978A1 (en) * | 2019-06-12 | 2020-12-16 | Unilever N.V. | Laundry detergent composition |
EP3750979A1 (en) * | 2019-06-12 | 2020-12-16 | Unilever N.V. | Use of laundry detergent composition |
BR112023022693A2 (en) | 2021-04-30 | 2024-01-23 | Unilever Ip Holdings B V | DETERGENT COMPOSITION FOR WASHING CLOTHES, HOUSEHOLD METHOD OF TREATMENT OF A TEXTILE ARTICLE AND CONTAINER |
WO2022228950A1 (en) | 2021-04-30 | 2022-11-03 | Unilever Ip Holdings B.V. | Composition |
WO2022228832A1 (en) | 2021-04-30 | 2022-11-03 | Unilever Ip Holdings B.V. | Composition |
WO2022228903A1 (en) * | 2021-04-30 | 2022-11-03 | Unilever Ip Holdings B.V. | Composition |
WO2022228951A1 (en) * | 2021-04-30 | 2022-11-03 | Unilever Ip Holdings B.V. | Composition |
WO2023227331A1 (en) | 2022-05-27 | 2023-11-30 | Unilever Ip Holdings B.V. | Composition comprising a specific methyl ester ethoxylate surfactant and a lipase |
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2005
- 2005-11-16 US US11/274,975 patent/US20070111914A1/en not_active Abandoned
-
2006
- 2006-10-23 WO PCT/EP2006/010202 patent/WO2007057085A1/en active Application Filing
- 2006-10-23 EP EP06818277A patent/EP1948768A1/en not_active Withdrawn
- 2006-10-23 BR BRPI0618660-2A patent/BRPI0618660A2/en not_active IP Right Cessation
- 2006-10-23 CA CA002625950A patent/CA2625950A1/en not_active Abandoned
- 2006-10-23 ZA ZA200803705A patent/ZA200803705B/en unknown
- 2006-10-23 AU AU2006314866A patent/AU2006314866A1/en not_active Abandoned
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EP0399681A2 (en) * | 1989-05-15 | 1990-11-28 | The Clorox Company | Lipase and cutinase surfactant systems and method useful in laundering |
DE4433676A1 (en) * | 1994-09-21 | 1996-03-28 | Cognis Bio Umwelt | Textile conditioning agent |
WO1996023049A1 (en) * | 1995-01-27 | 1996-08-01 | Henkel Kommanditgesellschaft Auf Aktien | Liquid detergent |
WO1996029389A1 (en) * | 1995-03-17 | 1996-09-26 | Henkel Kommanditgesellschaft Auf Aktien | Process for manufacturing a powder washing or cleaning agent |
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EP3578628A1 (en) * | 2018-06-06 | 2019-12-11 | Henkel IP & Holding GmbH | Detergent compositions containing a surfactant system including a nonionic and an ionic surfactant |
US11118136B2 (en) | 2018-06-06 | 2021-09-14 | Henkel IP & Holding GmbH | Detergent compositions containing a surfactant system including a nonionic and an ionic surfactant |
Also Published As
Publication number | Publication date |
---|---|
CA2625950A1 (en) | 2007-05-24 |
US20070111914A1 (en) | 2007-05-17 |
AU2006314866A1 (en) | 2007-05-24 |
BRPI0618660A2 (en) | 2011-09-06 |
ZA200803705B (en) | 2009-10-28 |
EP1948768A1 (en) | 2008-07-30 |
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