EP2627749A1 - Laundry detergent particles - Google Patents
Laundry detergent particlesInfo
- Publication number
- EP2627749A1 EP2627749A1 EP11771079.8A EP11771079A EP2627749A1 EP 2627749 A1 EP2627749 A1 EP 2627749A1 EP 11771079 A EP11771079 A EP 11771079A EP 2627749 A1 EP2627749 A1 EP 2627749A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- surfactant
- detergent particle
- sodium
- coated detergent
- coating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000002245 particle Substances 0.000 title claims abstract description 66
- 239000003599 detergent Substances 0.000 title claims abstract description 56
- 239000004094 surface-active agent Substances 0.000 claims abstract description 49
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims abstract description 32
- 239000000203 mixture Substances 0.000 claims abstract description 32
- 238000000576 coating method Methods 0.000 claims abstract description 31
- 239000011248 coating agent Substances 0.000 claims abstract description 29
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 18
- 229910000029 sodium carbonate Inorganic materials 0.000 claims abstract description 16
- 239000004115 Sodium Silicate Substances 0.000 claims abstract description 15
- 239000003945 anionic surfactant Substances 0.000 claims abstract description 15
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims abstract description 15
- 229910052911 sodium silicate Inorganic materials 0.000 claims abstract description 15
- 239000002304 perfume Substances 0.000 claims abstract description 13
- 239000002736 nonionic surfactant Substances 0.000 claims abstract description 11
- 150000003839 salts Chemical class 0.000 claims abstract description 11
- 239000011162 core material Substances 0.000 claims abstract description 3
- -1 ether sulphates Chemical class 0.000 claims description 16
- 229910052708 sodium Inorganic materials 0.000 claims description 15
- 239000011734 sodium Substances 0.000 claims description 15
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 14
- SMVRDGHCVNAOIN-UHFFFAOYSA-L disodium;1-dodecoxydodecane;sulfate Chemical group [Na+].[Na+].[O-]S([O-])(=O)=O.CCCCCCCCCCCCOCCCCCCCCCCCC SMVRDGHCVNAOIN-UHFFFAOYSA-L 0.000 claims description 8
- 150000001298 alcohols Chemical class 0.000 claims description 5
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical group C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 claims description 4
- SRSXLGNVWSONIS-UHFFFAOYSA-N benzenesulfonic acid Chemical class OS(=O)(=O)C1=CC=CC=C1 SRSXLGNVWSONIS-UHFFFAOYSA-N 0.000 claims description 3
- 150000003467 sulfuric acid derivatives Chemical class 0.000 claims description 3
- QTDIEDOANJISNP-UHFFFAOYSA-N 2-dodecoxyethyl hydrogen sulfate Chemical compound CCCCCCCCCCCCOCCOS(O)(=O)=O QTDIEDOANJISNP-UHFFFAOYSA-N 0.000 claims description 2
- 125000001931 aliphatic group Chemical group 0.000 claims description 2
- 239000007859 condensation product Substances 0.000 claims description 2
- 125000001301 ethoxy group Chemical group [H]C([H])([H])C([H])([H])O* 0.000 claims description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 12
- 239000011575 calcium Substances 0.000 description 12
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- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 6
- 125000000217 alkyl group Chemical group 0.000 description 6
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- ZIIUUSVHCHPIQD-UHFFFAOYSA-N 2,4,6-trimethyl-N-[3-(trifluoromethyl)phenyl]benzenesulfonamide Chemical compound CC1=CC(C)=CC(C)=C1S(=O)(=O)NC1=CC=CC(C(F)(F)F)=C1 ZIIUUSVHCHPIQD-UHFFFAOYSA-N 0.000 description 3
- YGUMVDWOQQJBGA-VAWYXSNFSA-N 5-[(4-anilino-6-morpholin-4-yl-1,3,5-triazin-2-yl)amino]-2-[(e)-2-[4-[(4-anilino-6-morpholin-4-yl-1,3,5-triazin-2-yl)amino]-2-sulfophenyl]ethenyl]benzenesulfonic acid Chemical compound C=1C=C(\C=C\C=2C(=CC(NC=3N=C(N=C(NC=4C=CC=CC=4)N=3)N3CCOCC3)=CC=2)S(O)(=O)=O)C(S(=O)(=O)O)=CC=1NC(N=C(N=1)N2CCOCC2)=NC=1NC1=CC=CC=C1 YGUMVDWOQQJBGA-VAWYXSNFSA-N 0.000 description 3
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- 102100037486 Reverse transcriptase/ribonuclease H Human genes 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 150000004996 alkyl benzenes Chemical class 0.000 description 3
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- 125000000129 anionic group Chemical group 0.000 description 3
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- 239000000975 dye Substances 0.000 description 3
- 239000007850 fluorescent dye Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
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- 238000002360 preparation method Methods 0.000 description 3
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 3
- 239000000344 soap Substances 0.000 description 3
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- 241000589516 Pseudomonas Species 0.000 description 2
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- DPXJVFZANSGRMM-UHFFFAOYSA-N acetic acid;2,3,4,5,6-pentahydroxyhexanal;sodium Chemical compound [Na].CC(O)=O.OCC(O)C(O)C(O)C(O)C=O DPXJVFZANSGRMM-UHFFFAOYSA-N 0.000 description 2
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- 229910001424 calcium ion Inorganic materials 0.000 description 2
- 125000004432 carbon atom Chemical group C* 0.000 description 2
- 235000019864 coconut oil Nutrition 0.000 description 2
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- 125000004122 cyclic group Chemical group 0.000 description 2
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- ZMLPKJYZRQZLDA-UHFFFAOYSA-N 1-(2-phenylethenyl)-4-[4-(2-phenylethenyl)phenyl]benzene Chemical group C=1C=CC=CC=1C=CC(C=C1)=CC=C1C(C=C1)=CC=C1C=CC1=CC=CC=C1 ZMLPKJYZRQZLDA-UHFFFAOYSA-N 0.000 description 1
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- 229930007790 rose oxide Natural products 0.000 description 1
- 238000005185 salting out Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 229960001922 sodium perborate Drugs 0.000 description 1
- 229940045872 sodium percarbonate Drugs 0.000 description 1
- 159000000000 sodium salts Chemical class 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- YKLJGMBLPUQQOI-UHFFFAOYSA-M sodium;oxidooxy(oxo)borane Chemical compound [Na+].[O-]OB=O YKLJGMBLPUQQOI-UHFFFAOYSA-M 0.000 description 1
- 239000008234 soft water Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 150000005846 sugar alcohols Chemical class 0.000 description 1
- 125000001273 sulfonato group Chemical group [O-]S(*)(=O)=O 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 108010075550 termamyl Proteins 0.000 description 1
- 150000003852 triazoles Chemical class 0.000 description 1
- 235000013311 vegetables Nutrition 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
- C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
- C11D17/0039—Coated compositions or coated components in the compositions, (micro)capsules
-
- 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
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/02—Inorganic compounds ; Elemental compounds
- C11D3/04—Water-soluble compounds
- C11D3/08—Silicates
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/02—Inorganic compounds ; Elemental compounds
- C11D3/04—Water-soluble compounds
- C11D3/10—Carbonates ; Bicarbonates
Definitions
- the present invention relates to large laundry detergent particles.
- W09932599 describes a method of manufacturing laundry detergent particles, being an extrusion method in which a builder and surfactant, the latter comprising as a major component a sulphated or sulphonated anionic surfactant, are fed into an extruder, mechanically worked at a temperature of at least 40 °C, preferably at least 60°C, and extruded through an extrusion head having a multiplicity of extrusion apertures.
- the surfactant is fed to the extruder along with builder in a weight ratio of more than 1 part builder to 2 parts surfactant.
- the extrudate apparently required further drying.
- PAS paste was dried and extruded.
- Such PAS noodles are well known in the prior art. The noodles are typically cylindrical in shape and their length exceeds their diameter, as described in example 2.
- US 7,022,660 discloses a process for the preparation of a detergent particle having a coating.
- the present invention provides a coated detergent particle that is a concentrated formulation with more surfactant than inorganic solid. Only by having the coating encasing the surfactant which is soft can one have such a particulate concentrate where the unit dose required for a wash is reduced.
- the coated detergent particle of the present invention sits in the middle of the two
- the present invention provides a coated detergent particle having perpendicular dimensions x, y and z, wherein x is from 1 to 2 mm, y is from 2 to 8mm, and z is from 2 to 8 mm, wherein the particle comprises:
- surfactant selected from: anionic surfactant; and, non-ionic surfactant;
- the inorganic salts are present on the detergent particle as a coating and the surfactant is present as a core and sodium carbonate and sodium silicate comprise from 70 to 100 wt % of the coating and the ratio of sodium
- carbonate:sodium silicate in the coating is in the range from 4: 1 to 2:3.
- the ratio of sodium carbonate:sodium silicate in the coating is preferably 2: 1 .
- sodium carbonate and sodium silicate comprise from 80 to 100 wt %, preferably 90 to 100 wt %, and most preferably 95 to 100 wt % of the coating. Unless otherwise stated all wt % refer to the total percentage in the particle as dry weights.
- the coated laundry detergent particle is curved.
- the coated laundry detergent particle may be shaped as a disc.
- the coated laundry detergent particle does not have hole; that is to say, the coated laundry detergent particle does not have a conduit passing there though that passes through the core, i.e., the coated detergent particle has a topologic genus of zero.
- the coated laundry detergent particle comprises between 40 to 90 wt%, preferably 50 to 90 wt% of a surfactant, most preferably 70 to 90 wt %.
- a surfactant preferably 50 to 90 wt% of a surfactant, most preferably 70 to 90 wt %.
- the nonionic and anionic surfactants of the surfactant system may be chosen from the surfactants described "Surface Active Agents" Vol. 1 , by Schwartz & Perry, Interscience 1949, Vol. 2 by Schwartz, Perry & Berch, Interscience 1958, in the current edition of "McCutcheon's Emulsifiers and Detergents" published by
- the surfactants used are saturated.
- Suitable anionic detergent compounds which may be used are usually water- soluble alkali metal salts of organic sulphates and sulphonates having alkyl radicals containing from about 8 to about 22 carbon atoms, the term alkyl being used to include the alkyl portion of higher acyl radicals.
- suitable synthetic anionic detergent compounds are sodium and potassium alkyl sulphates, especially those obtained by sulphating higher Cs to Ci8 alcohols, produced for example from tallow or coconut oil, sodium and potassium alkyl Cg to C20 benzene sulphonates, particularly sodium linear secondary alkyl C10 to C15 benzene sulphonates; and sodium alkyl glyceryl ether sulphates, especially those ethers of the higher alcohols derived from tallow or coconut oil and synthetic alcohols derived from petroleum.
- anionic surfactants are sodium lauryl ether sulfate (SLES), particularly preferred with 1 to 3 ethoxy groups, sodium C10 to C15 alkyl benzene sulphonates and sodium C12 to C18 alkyl sulphates. Also applicable are surfactants such as those described in EP-A-328 177 (Unilever), which show resistance to salting-out, the alkyl polyglycoside surfactants described in EP-A-070 074, and alkyl monoglycosides. The chains of the surfactants may be branched or linear.
- the fatty acid soap used preferably contains from about 16 to about 22 carbon atoms, preferably in a straight chain configuration.
- the anionic contribution from soap is preferably from 0 to 30 wt% of the total anionic.
- At least 50 wt % of the anionic surfactant is selected from: sodium Cn to C-I 5 alkyl benzene sulphonates; and, sodium C12 to C18 alkyl sulphates. Even more preferably, the anionic surfactant is sodium Cn to C15 alkyl benzene sulphonates.
- the anionic surfactant is present in the coated laundry detergent particle at levels between 15 to 85 wt%, more preferably 50 to 80 wt% on total surfactant.
- Nonionic Surfactants Suitable nonionic detergent compounds which may be used include, in particular, the reaction products of compounds having a hydrophobic group and a reactive hydrogen atom, for example, aliphatic alcohols, acids, amides or alkyl phenols with alkylene oxides, especially ethylene oxide either alone or with propylene oxide.
- Preferred nonionic detergent compounds are C6 to C22 alkyl phenol- ethylene oxide condensates, generally 5 to 25 EO, i.e. 5 to 25 units of ethylene oxide per molecule, and the condensation products of aliphatic Cs to C18 primary or secondary linear or branched alcohols with ethylene oxide, generally 5 to 50 EO.
- the non-ionic is 10 to 50 EO, more preferably 20 to 35 EO. Alkyl ethoxylates are particularly preferred.
- nonionic surfactant is present in the coated laundry detergent particle at levels between 5 to 75 wt% on total surfactant, more preferably 10 to 40 wt% on total surfactant.
- Cationic surfactant may be present as minor ingredients at levels preferably between 0 to 5 wt% on total surfactant.
- surfactants are mixed together before being dried. Conventional mixing equipment may be used.
- the surfactant core of the laundry detergent particle may be formed by extrusion or roller compaction and subsequently coated with an inorganic salt.
- the surfactant system used is calcium tolerant and this is a preferred aspect because this reduces the need for builder.
- Such blends are called calcium tolerant surfactant blends if they pass the test set out hereinafter.
- the invention may also be of use for washing with soft water, either naturally occurring or made using a water softener. In this case, calcium tolerance is no longer important and blends other than calcium tolerant ones may be used.
- the surfactant blend in question is prepared at a concentration of 0.7 g surfactant solids per litre of water containing sufficient calcium ions to give a French hardness of 40 (4 x 10 "3 Molar Ca 2+ ).
- Other hardness ion free electrolytes such as sodium chloride, sodium sulphate, and sodium hydroxide are added to the solution to adjust the ionic strength to 0.05M and the pH to 10.
- the adsorption of light of wavelength 540 nm through 4 mm of sample is measured 15 minutes after sample preparation. Ten measurements are made and an average value is calculated. Samples that give an absorption value of less than 0.08 are deemed to be calcium tolerant.
- Suitable calcium tolerant co- surfactants include SLES 1 -7EO, and alkyl-ethoxylate nonionic surfactants, particularly those with melting points less than 40°C.
- a LAS/SLES surfactant blend has a superior foam profile to a LAS nonionic surfactant blend and is therefore preferred for hand washing formulations requiring high levels of foam.
- SLES may be used at levels of up to 30 wt% of the surfactant blend.
- the water-soluble inorganic salt is present as a coating on the particle.
- the water- soluble inorganic salt is preferably present at a level that reduces the stickiness of the laundry detergent particle to a point where the particles are free flowing.
- the coating is preferably applied to the surface of the surfactant core, by deposition from an aqueous solution of the water soluble inorganic salt.
- aqueous solution preferably contains greater than 50g/L, more preferably 200 g/L of the salt.
- An aqueous spray-on of the coating solution in a fluidised bed has been found to give good results and may also generate a slight rounding of the detergent particles during the fluidisation process. Drying and/or cooling may be needed to finish the process.
- a preferred calcium tolerant coated laundry detergent particle comprises 15 to 100 wt% on surfactant of anionic surfactant of which 20 to 30 wt% on surfactant is sodium lauryl ether sulphate.
- the coating is applied as a solution rather than a suspension.
- the coated laundry detergent particle is the coated laundry detergent particle
- the coated laundry detergent particle comprises from 10 to 100 wt %, more preferably 50 to 100 wt %, even more preferably 80 to 100 wt %, most preferably 90 to 100 wt % of a laundry detergent formulation in a package.
- the package is that of a commercial formulation for sale to the general public and is preferably in the range of 0.01 kg to 5 kg, preferably 0.02 kg to 2 kg, most preferably 0.5 kg to 2 kg.
- the coated laundry detergent particle is such that at least 90 to 100 % of the coated laundry detergent particles in the in the x, y and z dimensions are within a 20 %, preferably 10%, variable from the largest to the smallest coated laundry detergent particle.
- the particle preferably comprises from 0 to 15 wt % water, more preferably 0 to 10 wt %, most preferably from 1 to 5 wt % water, at 293K and 50% relative humidity. This facilitates the storage stability of the particle and its mechanical properties.
- adjuncts as described below may be present in the coating or the core. These may be in the core or the coating.
- the coated laundry detergent particle preferably comprises a fluorescent agent (optical brightener).
- fluorescent agents are well known and many such
- fluorescent agents are available commercially. Usually, these fluorescent agents are supplied and used in the form of their alkali metal salts, for example, the sodium salts.
- the total amount of the fluorescent agent or agents used in the composition is generally from 0.005 to 2 wt %, more preferably 0.01 to 0.1 wt %. Suitable Fluorescer for use in the invention is described in chapter 7 of Industrial Dyes edited by K. Hunger 2003 Wiley-VCH ISBN 3-527-30426-6.
- Preferred fluorescers are selected from the classes distyrylbiphenyls,
- the fluorescer is preferably sulfonated.
- Preferred classes of fluorescer are: Di-styryl biphenyl compounds, e.g. Tinopal (Trade Mark) CBS-X, Di-amine stilbene di-sulphonic acid compounds, e.g. Tinopal DMS pure Xtra and Blankophor (Trade Mark) HRH, and Pyrazoline compounds, e.g. Blankophor SN.
- Preferred fluorescers are: sodium 2 (4-styryl-3-sulfophenyl)- 2H-napthol[1 ,2-d]triazole, disodium 4,4'-bis ⁇ [(4-anilino-6-(N methyl-N-2
- Tinopal® DMS is the disodium salt of disodium 4,4'-bis ⁇ [(4-anilino-6-morpholino- 1 ,3,5-triazin-2-yl)]amino ⁇ stilbene-2-2' disulfonate.
- Tinopal® CBS is the disodium salt of disodium 4,4'-bis(2-sulfostyryl)biphenyl.
- the composition comprises a perfume.
- the perfume is preferably in the range from 0.001 to 3 wt %, most preferably 0.1 to 1 wt %.
- CTFA Cosmetic, Toiletry and
- compositions of the present invention it is envisaged that there will be four or more, preferably five or more, more preferably six or more or even seven or more different perfume components.
- top notes are defined by Poucher (Journal of the Society of Cosmetic Chemists 6(2):80 [1955]).
- Preferred top-notes are selected from citrus oils, linalool, linalyl acetate, lavender, dihydromyrcenol, rose oxide and cis-3-hexanol.
- the perfume serves to disaggregate the dye to make the dye more visible.
- the coated laundry detergent particle does not contain a peroxygen bleach, e.g., sodium percarbonate, sodium perborate, and peracid.
- a peroxygen bleach e.g., sodium percarbonate, sodium perborate, and peracid.
- the composition may comprise one or more further polymers.
- further polymers are carboxymethylcellulose, poly (ethylene glycol), polyvinyl alcohol), polyethylene imines, ethoxylated polyethylene imines, water soluble polyester polymers polycarboxylates such as polyacrylates, maleic/acrylic acid copolymers and lauryl methacry late/acrylic acid copolymers.
- One or more enzymes are preferred present in a composition of the invention.
- the level of each enzyme is from 0.0001 wt% to 0.5 wt% protein on product.
- Suitable lipases include those of bacterial or fungal origin. Chemically modified or protein engineered mutants are included. Examples of useful lipases include lipases from Humicola (synonym Thermomyces), e.g. from H. lanuginosa (7. lanuginosus) as described in EP 258 068 and EP 305 216 or from H. insolens as described in WO 96/13580, a Pseudomonas lipase, e.g. from P. alcaligenes or P. pseudoalcaligenes (EP 218 272), P. cepacia (EP 331 376), P. stutzeri (GB
- lipase variants such as those described in WO 92/05249, WO 94/01541 , EP 407 225, EP 260 105, WO 95/35381 , WO 96/00292, WO 95/30744, WO 94/25578, WO 95/14783, WO 95/22615, WO 97/04079 and WO 97/07202, WO 00/60063, WO 09/107091 and WO09/1 1 1258.
- LipolaseTM and Lipolase UltraTM LipexTM (Novozymes A/S) and LipocleanTM.
- the method of the invention may be carried out in the presence of phospholipase classified as EC 3.1 .1 .4 and/or EC 3.1 .1 .32.
- phospholipase classified as EC 3.1 .1 .4 and/or EC 3.1 .1 .32 As used herein, the term
- phospholipase is an enzyme which has activity towards phospholipids.
- Phospholipids such as lecithin or phosphatidylcholine, consist of glycerol esterified with two fatty acids in an outer (sn-1 ) and the middle (sn-2) positions and esterified with phosphoric acid in the third position; the phosphoric acid, in turn, may be esterified to an amino-alcohol.
- Phospholipases are enzymes which participate in the hydrolysis of phospholipids. Several types of phospholipase activity can be distinguished, including phospholipases Ai and A 2 which hydrolyze one fatty acyl group (in the sn-1 and sn-2 position, respectively) to form
- lysophospholipid lysophospholipid
- lysophospholipase or phospholipase B which can hydrolyze the remaining fatty acyl group in lysophospholipid.
- Phospholipase C and phospholipase D release diacyl glycerol or
- proteases include those of animal, vegetable or microbial origin. Microbial origin is preferred. Chemically modified or protein engineered mutants are included.
- the protease may be a serine protease or a metallo protease, preferably an alkaline microbial protease or a trypsin-like protease.
- Preferred commercially available protease enzymes include AlcalaseTM, SavinaseTM, PrimaseTM,
- DuralaseTM DyrazymTM, EsperaseTM, EverlaseTM, PolarzymeTM, and KannaseTM, (Novozymes A/S), MaxataseTM, MaxacalTM, MaxapemTM, ProperaseTM,
- the method of the invention may be carried out in the presence of cutinase.
- cutinase used according to the invention may be of any origin.
- cutinases are of microbial origin, in particular of bacterial, of fungal or of yeast origin.
- amylases include those of bacterial or fungal origin. Chemically modified or protein engineered mutants are included. Amylases include, for example, alpha-amylases obtained from Bacillus, e.g. a special strain of B. licheniformis, described in more detail in GB 1 ,296,839, or the Bacillus sp. strains disclosed in WO 95/026397 or WO 00/060060. Commercially available amylases are DuramylTM, TermamylTM, Termamyl UltraTM, NatalaseTM,
- Suitable cellulases include those of bacterial or fungal origin. Chemically modified or protein engineered mutants are included. Suitable cellulases include cellulases from the genera Bacillus, Pseudomonas, Humicola, Fusarium, Thielavia,
- Acremonium e.g. the fungal cellulases produced from Humicola insolens, Thielavia terrestris, Myceliophthora thermophila, and Fusarium oxysporum disclosed in US 4,435,307, US 5,648,263, US 5,691 , 178, US 5,776,757, WO 89/09259, WO 96/029397, and WO 98/012307.
- Commercially available cellulases include CelluzymeTM, CarezymeTM, EndolaseTM, RenozymeTM (Novozymes A/S), ClazinaseTM and Puradax HATM (Genencor International Inc.), and KAC-500(B)TM (Kao Corporation).
- Suitable peroxidases/oxidases include those of plant, bacterial or fungal origin. Chemically modified or protein engineered mutants are included. Examples of useful peroxidases include peroxidases from Coprinus, e.g. from C. cinereus, and variants thereof as those described in WO 93/24618, WO 95/10602, and WO 98/15257. Commercially available peroxidases include GuardzymeTM and
- NovozymTM 51004 Novozymes A/S.
- Any enzyme present in the composition may be stabilized using conventional stabilizing agents, e.g., a polyol such as propylene glycol or glycerol, a sugar or sugar alcohol, lactic acid, boric acid, or a boric acid derivative, e.g., an aromatic borate ester, or a phenyl boronic acid derivative such as 4-formylphenyl boronic acid, and the composition may be formulated as described in e.g. WO 92/19709 and WO 92/19708.
- a polyol such as propylene glycol or glycerol
- a sugar or sugar alcohol lactic acid, boric acid, or a boric acid derivative, e.g., an aromatic borate ester, or a phenyl boronic acid derivative such as 4-formylphenyl boronic acid
- alkyi groups are sufficiently long to form branched or cyclic chains, the alkyi groups encompass branched, cyclic and linear alkyi chains.
- the alkyi groups are preferably linear or branched, most preferably linear.
- Sequesterants may be present in the coated laundry detergent particles.
- the coated detergent particle has a core to shell ratio of from 3 to 1 : 1 , most preferably 2.5 to 1.5: 1 ; the optimal ratio of core to shell is 2: 1 .
- Example 1 (particle manufacture)
- Core particle 1 -1962.5g of dried, milled surfactant blend (LAS/PAS/SLES.3eo (58.3-14.6-27.1 by weight) was thoroughly mixed with 37.38g of perfume oil and 30.1 g of Sodium Carboxymethyl cellulose.
- the mixtures were then extruded using a ThermoFisher 24HC twin screw extruder, operated at a rate of 8kg/hr.
- Inlet temperature of the extruder was set at 20°C, rising to 40°C just prior to the die-plate.
- the die-plate used was drilled with 6 circular orifices of 5mm diameter.
- the extruded products were cut after the die-plate using a high speed cutter set up to produce particle with a thickness of ⁇ 1 .1 mm.
- 1200g of the extrudates above were charged to the fluidising chamber of a Strea 1 laboratory fluid bed drier (Aeromatic-Fielder AG) and spray coated using 1714g of a solution containing 342.8g of sodium carbonate with 342.8g @50% alkaline silicate solution (defined as 2.1 to 2.6 Sio2 to 1 Na20) in 1028.4g of water, using a top-spray configuration.
- the coating solution was fed to the spray nozzle of the Strea 1 via a peristaltic pump (Watson-Marlow model 101 U/R) at an initial rate of 3.3g/min, rising to 9.1 g/min during the course of the coating trial.
- the Fluid bed coater was operated with an initial air inlet air temperature of 55°C increasing to 90 °C during the course of the coating trial whilst maintaining the outlet temperature in the range 45-50°C throughout the coating process.
- Coated granules, 200g were put into a plain card box, open at the lid.
- the samples were stored in an environment set at 27 °C 70% rh for either 2 weeks or 4 weeks. After that time the boxes were removed and tested for pouring and crystal feel.
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Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP11771079.8A EP2627749B1 (en) | 2010-10-14 | 2011-10-11 | Laundry detergent particles |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP10187520 | 2010-10-14 | ||
EP11771079.8A EP2627749B1 (en) | 2010-10-14 | 2011-10-11 | Laundry detergent particles |
PCT/EP2011/067735 WO2012049178A1 (en) | 2010-10-14 | 2011-10-11 | Laundry detergent particles |
Publications (2)
Publication Number | Publication Date |
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EP2627749A1 true EP2627749A1 (en) | 2013-08-21 |
EP2627749B1 EP2627749B1 (en) | 2015-03-04 |
Family
ID=43629268
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP11771079.8A Active EP2627749B1 (en) | 2010-10-14 | 2011-10-11 | Laundry detergent particles |
Country Status (7)
Country | Link |
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EP (1) | EP2627749B1 (en) |
CN (1) | CN103154225B (en) |
BR (1) | BR112013009129B1 (en) |
ES (1) | ES2537714T3 (en) |
IN (1) | IN2013MN00625A (en) |
WO (1) | WO2012049178A1 (en) |
ZA (1) | ZA201302293B (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2014048857A1 (en) | 2012-09-25 | 2014-04-03 | Unilever Plc | Laundry detergent particles |
TR201901001T4 (en) * | 2015-07-08 | 2019-02-21 | Unilever Nv | Coarse particles. |
TR201808208T4 (en) | 2016-01-07 | 2018-07-23 | Unilever Nv | The bitter particle. |
CN110785481B (en) * | 2017-06-20 | 2021-04-13 | 荷兰联合利华有限公司 | Granular detergent composition comprising perfume |
WO2020109227A1 (en) | 2018-11-28 | 2020-06-04 | Unilever N.V. | Large particles |
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- 2011-10-11 IN IN625MUN2013 patent/IN2013MN00625A/en unknown
- 2011-10-11 CN CN201180049090.8A patent/CN103154225B/en active Active
- 2011-10-11 BR BR112013009129-0A patent/BR112013009129B1/en active IP Right Grant
- 2011-10-11 WO PCT/EP2011/067735 patent/WO2012049178A1/en active Application Filing
- 2011-10-11 ES ES11771079.8T patent/ES2537714T3/en active Active
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2013
- 2013-03-27 ZA ZA2013/02293A patent/ZA201302293B/en unknown
Non-Patent Citations (1)
Title |
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Also Published As
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BR112013009129A2 (en) | 2016-07-19 |
ZA201302293B (en) | 2014-06-25 |
CN103154225B (en) | 2015-02-04 |
EP2627749B1 (en) | 2015-03-04 |
IN2013MN00625A (en) | 2015-06-12 |
CN103154225A (en) | 2013-06-12 |
ES2537714T3 (en) | 2015-06-11 |
BR112013009129B1 (en) | 2020-10-13 |
WO2012049178A1 (en) | 2012-04-19 |
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