EP2441822A1 - Laundry detergent particles - Google Patents
Laundry detergent particles Download PDFInfo
- Publication number
- EP2441822A1 EP2441822A1 EP10187522A EP10187522A EP2441822A1 EP 2441822 A1 EP2441822 A1 EP 2441822A1 EP 10187522 A EP10187522 A EP 10187522A EP 10187522 A EP10187522 A EP 10187522A EP 2441822 A1 EP2441822 A1 EP 2441822A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- detergent particle
- coated detergent
- coated
- surfactant
- particle according
- 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.)
- Withdrawn
Links
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
- C11D3/20—Organic compounds containing oxygen
- C11D3/2075—Carboxylic acids-salts thereof
- C11D3/2086—Hydroxy carboxylic acids-salts thereof
-
- 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
- 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
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/40—Dyes ; Pigments
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/02—Anionic compounds
- C11D1/12—Sulfonic acids or sulfuric acid esters; Salts thereof
- C11D1/14—Sulfonic acids or sulfuric acid esters; Salts thereof derived from aliphatic hydrocarbons or mono-alcohols
-
- 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
- C11D1/72—Ethers of polyoxyalkylene glycols
Definitions
- the present invention relates to large laundry detergent particles.
- WO9932599 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 coating contains citric acid.
- the reflective coated detergent particle also gives the appearance of luxurious moisture.
- the coating increases the colour intensity when a dye or pigment is incorporated into the coating over that of similar inorganic coatings.
- a further advantage is that most dyes will be stable in the citric acid coating. Further in the absence of carbonate in a detergent formulation the coated detergent particle provides foaming in hard water environments.
- 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. Adding solvent to the core would result by converting the particle into a liquid formulation. On the other hand, having a greater amount of inorganic solid would result in a less concentrated formulation; a high inorganic content would take one back to conventional low surfactant concentration granular powder.
- the coated detergent particle of the present invention sits in the middle of the two conventional (liquid and granular) formats.
- 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 (preferably 3 to 8 mm), and z is from 2 to 8 mm (preferably 3 to 8 mm), wherein the particle comprises:
- 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 50 to 90 wt% of a surfactant, most preferably 70 to 90 wt %.
- 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 Manufacturing Confectioners Company or in " Tenside-Taschenbuch", H. Stache, 2nd Edn., Carl Hauser Verlag, 1981 .
- the surfactants used are saturated.
- Suitable anionic detergent compounds which may be used are usually watersoluble 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 C 8 to C 18 alcohols, produced for example from tallow or coconut oil, sodium and potassium alkyl C 9 to C 20 benzene sulphonates, particularly sodium linear secondary alkyl C 10 to C 15 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 C 10 to C 15 alkyl benzene sulphonates and sodium C 12 to C 18 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 C 11 to C 15 alkyl benzene sulphonates; and, sodium C 12 to C 18 alkyl sulphates. Even more preferably, the anionic surfactant is sodium C 11 to C 15 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.
- 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 C 6 to C 22 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 C 8 to C 18 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.
- the 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.
- Surfactant blends that do not require builders to be present for effective detergency in hard water are preferred. Such blends are called calcium tolerant surfactant blends if they pass the test set out hereinafter. However, 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.
- 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 coating is preferably applied to the surface of the surfactant core, by deposition from an aqueous solution of citric acid.
- an aqueous solution of citric acid In the alternative coating can be performed using a slurry.
- the aqueous solution preferably contains greater than 300g/L, more preferably 500 g/L, of the citric acid.
- 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.
- Pigments are described in Industrial Inorganic Pigments edited by G. Buxbaum and G. Pfaff (3rd edition Wiley-VCH 2005 ). Suitable organic pigments are described in Industrial Organic Pigments edited by W. Herbst and K.Hunger (3rd edition Wiley-VCH 2004 ). Pigments are listed in the colour index international ⁇ Society of Dyers and Colourists and American Association of Textile Chemists and Colorists 2002.
- Pigments are practically insoluble coloured particles, preferably they have a primary particle size of 0.02 to 10 ⁇ m, where the distance represent the longest dimension of the primary particle.
- the primary particle size is measured by scanning electron microscopy.
- Most preferably the organic pigments have a primary particle size between 0.02 and 0.2 ⁇ m.
- insoluble we mean having a water solubility of less than 500 part per trillion (ppt), preferably 10 ppt at 20°C with a 10 wt% surfactant solution.
- Any class of dye and pigment may be used in the citrate coating.
- Preferred dyes for use in the current invention are selected from anionic and non-ionic dyes
- Anionic dyes are negatively charged in an aqueous medium at pH 7.
- anionic dyes are found in the classes of acid and direct dyes in the Color Index (Society of Dyers and Colourists and American Association of Textile Chemists and Colorists).
- Anionic dyes preferably contain at least one sulphonate or carboxylate groups.
- Non-ionic dyes are uncharged in an aqueous medium at pH 7, examples are found in the class of disperse dyes in the Color Index.
- the dyes may be alkoxylated.
- Alkoxylated dyes are preferably of the following generic form: Dye-NR 1 R 2 .
- the NR 1 R 2 group is attached to an aromatic ring of the dye.
- R 1 and R 2 are independently selected from polyoxyalkylene chains having 2 or more repeating units and preferably having 2 to 20 repeating units. Examples of polyoxyalkylene chains include ethylene oxide, propylene oxide, glycidol oxide, butylene oxide and mixtures thereof.
- a preferred alkoxylated dye for use in the invention which also functions as a shading dye, is:
- the dye is selected from acid dyes; disperse dyes and alkoxylated dyes.
- the colourant is a pigment, even more preferably an organic pigment.
- Pigments are coloured particles, preferably they have a primary particle size of 0.02 to 10 ⁇ m, where the distance represent the longest dimension of the primary particle.
- the primary particle size is measured by scanning electron microscopy.
- Most preferably the organic pigments have a primary particle size between 0.02 and 0.2 ⁇ m.
- Suitable organic pigments are preferably selected from monoazo pigments, beta-naphthol pigments, naphthol AS pigments, azo pigment lakes, benzimidazolone pigments, metal complex pigments, isoindolinone and isoindoline pigments, phthalocyanine pigments, quinacridone pigments, perylene and perinone pigments, diketopyrrolo-pyrrole pigments, thioindigo pigments, anthraquinone pigments, anthrapyrmidine pigments, flavanthrone pigments, anthanthrone pigments, dioxazine pigments and quinophthalone pigments, most preferably dioxazine and phthalocyanine pigments.
- pigments are pigment green 8, pigment yellow 1, pigment yellow 3, pigment orange 1, pigment red 4, pigment red 3, pigment red 22, pigment red 112, pigment red 7, pigment brown 1, pigment red 5, pigment red 68, pigment red 51, pigment 53, pigment red 53:1, pigment red 49, pigment red 49:1, pigment red 49:2, pigment red 49:3, pigment red 64:1, pigment red 57, pigment red 57:1, pigment red 48, pigment red 63:1, pigment yellow 16, pigment yellow 12, pigment yellow 13, pigment yellow 83, pigment orange 13, pigment violet 23, pigment red 83, pigment blue 60, pigment blue 64, pigment orange 43, pigment blue 66, pigment blue 63, pigment violet 36, pigment violet 19, pigment red 122, pigment blue 16, pigment blue 15, pigment blue 15:1, pigment blue 15:2, pigment blue 15:3, pigment blue 15:4, pigment blue 15:6, pigment green 7, pigment green 36, pigment blue 29, pigment green 24, pigment red 101:1, pigment green 17, pigment green 18, pigment green 14, pigment brown 6, pigment blue 27 and pigment violet 16. Most preferably the pigment is selected from pigment blue 15, pigment blue 15:1, pigment blue 15:2, pigment blue 15:3, pigment
- Pigments are preferably present from 0.001 to 0.1wt%.
- the dye and/or pigment is added to the coating solution or slurry and agitated before applying to the core of the particle.
- Application may be by any suitable method, preferably spraying on to the core particle as detailed above.
- the dye and/or pigment may be any colour, preferable the dye is blue, violet, green or red. Most preferably the dye and/or pigment is blue or violet.
- the dye is preferably a shading dye for imparting a perception of whiteness to a laundry textile, preferably acid violet 50, solvent violet 13, disperse violet 27, disperse violet 28, an alkoxylated thiophene, or a cationic phenazine as described in WO 2009/141172 and WO 2009/141173 .
- a shading dye preferably a further green dye is present to shift the colour of the particle from violet to blue-green.
- the dye may be covalently bound to polymeric species.
- a combination of dyes or pigments may be used.
- the dye or pigment may also be incorporated into the core.
- 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 are 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, triazinylaminostilbenes, bis(1,2,3-triazol-2-yl)stilbenes, bis(benzo[b]furan-2-yl)biphenyls, 1,3-diphenyl-2-pyrazolines and courmarins.
- 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.
- 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
- 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 hydroxyethyl) amino 1,3,5-triazin-2-yl)]amino)stilbene-2-2' disulfonate, disodium 4,4'-bis ⁇ [(4-anilino-6-morpholino-1,3,5-triazin-2-yl)]aminol stilbene-2-2' disulfonate, and disodium 4,4'-bis(2-sulfostyryl)biphenyl.
- 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 Fragrance Association
- Many suitable examples of perfumes are provided in the CTFA (Cosmetic, Toiletry and Fragrance Association) 1992 International Buyers Guide, published by CFTA Publications and OPD 1993 Chemicals Buyers Directory 80th Annual Edition, published by Schnell Publishing Co .
- 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), poly(vinyl alcohol), polyethylene imines, ethoxylated polyethylene imines, water soluble polyester polymers polycarboxylates such as polyacrylates, maleic/acrylic acid copolymers and lauryl methacrylate/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.
- enzymes include proteases, alpha-amylases, cellulases, lipases, peroxidases/oxidases, pectate lyases, and mannanases, or mixtures thereof.
- 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 (T. 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 1,372,034 ), P.
- 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 W009/111258 .
- 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 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.
- phospholipases A 1 and A 2 which hydrolyze one fatty acyl group (in the sn-1 and sn-2 position, respectively) to form lysophospholipid
- lysophospholipase or phospholipase B
- Phospholipase C and phospholipase D release diacyl glycerol or phosphatidic acid respectively.
- 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, PurafectTM, Purafect OxPTM, FN2TM, and FN3TM (Genencor International Inc.).
- the method of the invention may be carried out in the presence of cutinase. classified in EC 3.1.1.74.
- the cutinase used according to the invention may be of any origin.
- Preferably cutinases are of microbial origin, in particular of bacterial, of fungal or of yeast origin.
- Suitable 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 .
- amylases are DuramylTM, TermamylTM, Termamyl UltraTM, NatalaseTM, StainzymeTM, FungaMylTMand BANTM (Novozymes A/S), RapidaseTM and PurastarTM (from Genencor International Inc.).
- 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 .
- 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
- alkyl groups are sufficiently long to form branched or cyclic chains, the alkyl groups encompass branched, cyclic and linear alkyl chains.
- the alkyl 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.
- the extruded product was cut after the die-plate using a high speed cutter set up to produce particle with a thickness of ⁇ 1.1 mm.
- 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 9.1g/min during the course of the coating trial.
- a peristaltic pump Wood-Marlow model 101 U/R
- 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.
- the dye solution for both granules contained 50g of LiquitintTM Pink AL a liquid preparation of a red dye ex Milliken and 5g of Pigmosol Blue 6900 (Pigment Blue 15:1 ex BASF).
- the citric acid coated granules are more lively with larger magnitude of a* and b* than the carbonate coated granules.
- the citric acid coated granules contain less dye than the carbonate coated.
- the larger particle In contrast to powders being coated with citric acid the larger particle also has greater brightness in ambient light than powders.
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Emergency Medicine (AREA)
- Detergent Compositions (AREA)
Abstract
The present invention provides lenticular or disc detergent particle.
Description
- The present invention relates to large laundry detergent particles.
-
WO9932599 -
US 7,022,660 discloses a process for the preparation of a detergent particle having a coating. - We have found that it is possible to have a highly reflective coated detergent particle that is aesthetically pleasing to the eye; the coating contains citric acid. The reflective coated detergent particle also gives the appearance of luxurious moisture. In a further aspect the coating increases the colour intensity when a dye or pigment is incorporated into the coating over that of similar inorganic coatings. A further advantage is that most dyes will be stable in the citric acid coating. Further in the absence of carbonate in a detergent formulation the coated detergent particle provides foaming in hard water environments.
- In a further aspect, 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. Adding solvent to the core would result by converting the particle into a liquid formulation. On the other hand, having a greater amount of inorganic solid would result in a less concentrated formulation; a high inorganic content would take one back to conventional low surfactant concentration granular powder. The coated detergent particle of the present invention sits in the middle of the two conventional (liquid and granular) formats.
- In one aspect 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 (preferably 3 to 8 mm), and z is from 2 to 8 mm (preferably 3 to 8 mm), wherein the particle comprises:
- (i) from 40 to 90 wt %, preferably 50 to 90 wt%, surfactant selected from: anionic surfactant; and, non-ionic surfactant;
- (ii) from 1 to 40 wt % citric acid, preferably 10 to 35 wt%, more preferably 20 to 35 wt %; and,
- (iii) from 0 to 3 wt %, preferably 0.001 to 3 wt % of a perfume,
wherein the citric acid is present on the laundry detergent particle as a coating and the surfactant is present as a core. - Unless otherwise stated all wt % refer to the total percentage in the particle as dry weights.
- Preferably the coated laundry detergent particle is curved.
- The coated laundry detergent particle may be lenticular (shaped like a whole dried lentil), an oblate ellipsoid, where z and y are the equatorial diameters and x is the polar diameter; preferably y = z.
- The coated laundry detergent particle may be shaped as a disc.
- Preferably 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 50 to 90 wt% of a surfactant, most preferably 70 to 90 wt %. In general, 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 Manufacturing Confectioners Company or in "Tenside-Taschenbuch", H. Stache, 2nd Edn., Carl Hauser Verlag, 1981. Preferably the surfactants used are saturated.
- Suitable anionic detergent compounds which may be used are usually watersoluble 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. Examples of suitable synthetic anionic detergent compounds are sodium and potassium alkyl sulphates, especially those obtained by sulphating higher C8 to C18 alcohols, produced for example from tallow or coconut oil, sodium and potassium alkyl C9 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. Most preferred 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 EP-A-070 074 - Soaps may also be present. 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.
- Preferably, at least 50 wt % of the anionic surfactant is selected from: sodium C11 to C15 alkyl benzene sulphonates; and, sodium C12 to C18 alkyl sulphates. Even more preferably, the anionic surfactant is sodium C11 to C15 alkyl benzene sulphonates.
- Preferably 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.
- 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 C8 to C18 primary or secondary linear or branched alcohols with ethylene oxide, generally 5 to 50 EO. Preferably, the non-ionic is 10 to 50 EO, more preferably 20 to 35 EO. Alkyl ethoxylates are particularly preferred.
- Preferably the 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.
- Preferably all the 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.
- In another aspect the surfactant system used is calcium tolerant and this is a preferred aspect because this reduces the need for builder.
- Surfactant blends that do not require builders to be present for effective detergency in hard water are preferred. Such blends are called calcium tolerant surfactant blends if they pass the test set out hereinafter. However, 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.
- Calcium-tolerance of the surfactant blend is tested as follows:
- 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 Ca2+). 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.
- Examples of surfactant blends that satisfy the above test for calcium tolerance include those having a major part of LAS surfactant (which is not of itself calcium tolerant) blended with one or more other surfactants (co-surfactants) that are calcium tolerant to give a blend that is sufficiently calcium tolerant to be usable with little or no builder and to pass the given test. 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 coating is preferably applied to the surface of the surfactant core, by deposition from an aqueous solution of citric acid. In the alternative coating can be performed using a slurry. The aqueous solution preferably contains greater than 300g/L, more preferably 500 g/L, of the citric acid. 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.
- Dyes are described in Industrial Dyes edited by K.Hunger 2003 Wiley-VCH ISBN 3-527-30426-6.
- Pigments are described in Industrial Inorganic Pigments edited by G. Buxbaum and G. Pfaff (3rd edition Wiley-VCH 2005). Suitable organic pigments are described in Industrial Organic Pigments edited by W. Herbst and K.Hunger (3rd edition Wiley-VCH 2004). Pigments are listed in the colour index international © Society of Dyers and Colourists and American Association of Textile Chemists and Colorists 2002.
- Pigments are practically insoluble coloured particles, preferably they have a primary particle size of 0.02 to 10µm, where the distance represent the longest dimension of the primary particle. The primary particle size is measured by scanning electron microscopy. Most preferably the organic pigments have a primary particle size between 0.02 and 0.2 µm.
- By practically insoluble we mean having a water solubility of less than 500 part per trillion (ppt), preferably 10 ppt at 20°C with a 10 wt% surfactant solution.
- Any class of dye and pigment may be used in the citrate coating.
- Preferred dyes for use in the current invention are selected from anionic and non-ionic dyes Anionic dyes are negatively charged in an aqueous medium at pH 7. Examples of anionic dyes are found in the classes of acid and direct dyes in the Color Index (Society of Dyers and Colourists and American Association of Textile Chemists and Colorists). Anionic dyes preferably contain at least one sulphonate or carboxylate groups. Non-ionic dyes are uncharged in an aqueous medium at pH 7, examples are found in the class of disperse dyes in the Color Index.
- The dyes may be alkoxylated. Alkoxylated dyes are preferably of the following generic form: Dye-NR1R2. The NR1R2 group is attached to an aromatic ring of the dye. R1 and R2 are independently selected from polyoxyalkylene chains having 2 or more repeating units and preferably having 2 to 20 repeating units. Examples of polyoxyalkylene chains include ethylene oxide, propylene oxide, glycidol oxide, butylene oxide and mixtures thereof.
- A preferred polyoxyalkylene chain is [(CH2CR3HO)x(CH2CR4HO)yR5) in which x+y ≤ 5 wherein y ≥ 1 and z = 0 to 5, R3 is selected from: H; CH3; CH2O(CH2CH2O)zH and mixtures thereof; R4 is selected from: H; CH2O(CH2CH2O)zH and mixtures thereof; and, R5 is selected from: H; and, CH3.
-
- Preferably the dye is selected from acid dyes; disperse dyes and alkoxylated dyes.
- Most preferably the colourant is a pigment, even more preferably an organic pigment.
- Pigments are coloured particles, preferably they have a primary particle size of 0.02 to 10µm, where the distance represent the longest dimension of the primary particle. The primary particle size is measured by scanning electron microscopy. Most preferably the organic pigments have a primary particle size between 0.02 and 0.2 µm.
- Suitable organic pigments are preferably selected from monoazo pigments, beta-naphthol pigments, naphthol AS pigments, azo pigment lakes, benzimidazolone pigments, metal complex pigments, isoindolinone and isoindoline pigments, phthalocyanine pigments, quinacridone pigments, perylene and perinone pigments, diketopyrrolo-pyrrole pigments, thioindigo pigments, anthraquinone pigments, anthrapyrmidine pigments, flavanthrone pigments, anthanthrone pigments, dioxazine pigments and quinophthalone pigments, most preferably dioxazine and phthalocyanine pigments.
- Preferred pigments are pigment green 8, pigment yellow 1, pigment yellow 3, pigment orange 1, pigment red 4, pigment red 3, pigment red 22, pigment red 112, pigment red 7, pigment brown 1, pigment red 5, pigment red 68, pigment red 51, pigment 53, pigment red 53:1, pigment red 49, pigment red 49:1, pigment red 49:2, pigment red 49:3, pigment red 64:1, pigment red 57, pigment red 57:1, pigment red 48, pigment red 63:1, pigment yellow 16, pigment yellow 12, pigment yellow 13, pigment yellow 83, pigment orange 13, pigment violet 23, pigment red 83, pigment blue 60, pigment blue 64, pigment orange 43, pigment blue 66, pigment blue 63, pigment violet 36, pigment violet 19, pigment red 122, pigment blue 16, pigment blue 15, pigment blue 15:1, pigment blue 15:2, pigment blue 15:3, pigment blue 15:4, pigment blue 15:6, pigment green 7, pigment green 36, pigment blue 29, pigment green 24, pigment red 101:1, pigment green 17, pigment green 18, pigment green 14, pigment brown 6, pigment blue 27 and pigment violet 16. Most preferably the pigment is selected from pigment blue 15, pigment blue 15:1, pigment blue 15:2, pigment blue 15:3, pigment blue 15:4, pigment blue 15:6.
- Pigments are preferably present from 0.001 to 0.1wt%.
- The dye and/or pigment is added to the coating solution or slurry and agitated before applying to the core of the particle. Application may be by any suitable method, preferably spraying on to the core particle as detailed above.
- The dye and/or pigment may be any colour, preferable the dye is blue, violet, green or red. Most preferably the dye and/or pigment is blue or violet.
- The dye is preferably a shading dye for imparting a perception of whiteness to a laundry textile, preferably acid violet 50, solvent violet 13, disperse violet 27, disperse violet 28, an alkoxylated thiophene, or a cationic phenazine as described in
WO 2009/141172 andWO 2009/141173 . When a shading dye is present, preferably a further green dye is present to shift the colour of the particle from violet to blue-green. - The dye may be covalently bound to polymeric species.
- A combination of dyes or pigments may be used.
- The dye or pigment may also be incorporated into the core.
- Preferably, 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.
- Preferably, 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.
- The 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 are 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, triazinylaminostilbenes, bis(1,2,3-triazol-2-yl)stilbenes, bis(benzo[b]furan-2-yl)biphenyls, 1,3-diphenyl-2-pyrazolines and courmarins. 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 hydroxyethyl) amino 1,3,5-triazin-2-yl)]amino)stilbene-2-2' disulfonate, disodium 4,4'-bis{[(4-anilino-6-morpholino-1,3,5-triazin-2-yl)]aminol stilbene-2-2' disulfonate, and disodium 4,4'-bis(2-sulfostyryl)biphenyl.
- 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.
- Preferably 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 %. Many suitable examples of perfumes are provided in the CTFA (Cosmetic, Toiletry and Fragrance Association) 1992 International Buyers Guide, published by CFTA Publications and OPD 1993 Chemicals Buyers Directory 80th Annual Edition, published by Schnell Publishing Co.
- It is commonplace for a plurality of perfume components to be present in a formulation. In the 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.
- In perfume mixtures preferably 15 to 25 wt% are top notes. 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.
- It is preferred that the coated laundry detergent particle does not contain a peroxygen bleach, e.g., sodium percarbonate, sodium perborate, and peracid.
- The composition may comprise one or more further polymers. Examples are carboxymethylcellulose, poly (ethylene glycol), poly(vinyl alcohol), polyethylene imines, ethoxylated polyethylene imines, water soluble polyester polymers polycarboxylates such as polyacrylates, maleic/acrylic acid copolymers and lauryl methacrylate/acrylic acid copolymers.
- One or more enzymes are preferred present in a composition of the invention.
- Preferably the level of each enzyme is from 0.0001 wt% to 0.5 wt% protein on product.
- Especially contemplated enzymes include proteases, alpha-amylases, cellulases, lipases, peroxidases/oxidases, pectate lyases, and mannanases, or mixtures thereof.
- 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 (T. lanuginosus) as described in
EP 258 068 EP 305 216 WO 96/13580 EP 218 272 EP 331 376 GB 1,372,034 WO 95/06720 WO 96/27002 WO 96/12012 JP 64/744992 WO 91/16422 - Other examples are 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 WO 97/07202 WO 00/60063 WO 09/107091 W009/111258 - Preferred commercially available lipase enzymes include Lipolase™ and Lipolase Ultra™, Lipex™ (Novozymes A/S) and Lipoclean™.
- 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. 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 A1 and A2 which hydrolyze one fatty acyl group (in the sn-1 and sn-2 position, respectively) to form lysophospholipid; and lysophospholipase (or phospholipase B) which can hydrolyze the remaining fatty acyl group in lysophospholipid. Phospholipase C and phospholipase D (phosphodiesterases) release diacyl glycerol or phosphatidic acid respectively.
- Suitable 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 Alcalase™, Savinase™,Primase™, Duralase™, Dyrazym™, Esperase™, Everlase™, Polarzyme™, and Kannase™, (Novozymes A/S), Maxatase™, Maxacal™,Maxapem™, Properase™, Purafect™, Purafect OxP™, FN2™, and FN3™ (Genencor International Inc.).
- The method of the invention may be carried out in the presence of cutinase. classified in EC 3.1.1.74. The cutinase used according to the invention may be of any origin. Preferably cutinases are of microbial origin, in particular of bacterial, of fungal or of yeast origin.
- Suitable amylases (alpha and/or beta) 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 WO 95/026397 WO 00/060060 - 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 WO 98/012307 - 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 WO 98/15257 - Further enzymes suitable for use are disclosed in
W02009/087524 ,W02009/090576 ,W02009/148983 andW02008/007318 . - 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 WO 92/19708 - Where alkyl groups are sufficiently long to form branched or cyclic chains, the alkyl groups encompass branched, cyclic and linear alkyl chains. The alkyl groups are preferably linear or branched, most preferably linear.
- The indefinite article "a" or "an" and its corresponding definite article "the" as used herein means at least one, or one or more, unless specified otherwise. The singular encompasses the plural unless otherwise specified.
- Sequesterants may be present in the coated laundry detergent particles.
- It is preferred that 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.
- 1962.5g of dried, milled surfactant blend (LAS/PAS/NI 68/17/15 by weight) was thoroughly mixed with 37.38g of perfume oil. The mixture was 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 product was 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 extrudate above were charged to the fluidising chamber of a Strea 1 laboratory fluid bed drier (Aeromatic-Fielder AG) and spray coated using 1285g of a solution containing 640g of citric acid in 960 g 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 9.1g/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.
- Similar particles were prepared with a sodium sulphate and sodium carbonate coating.
- Ten out of ten panellists found that large coated detergent particles coated with citric acid were shinier than those coated with sodium sulphate or sodium sulphate and more aesthetically pleasing to the eye. In similar test the panel also found that those with dye incorporated into the coating in citric acid were of greater colour intensity that similar particles with a sodium sulphate coating.
- 2 batches of coloured particles were made with the core particle described in example 1. A reference particle was coated with sodium carbonate, and an example of the current invention made with citric acid. 1200g of the core particles were coated with the following solutions:
- Solution for coating made up as follows:
- 1400g demin water
- 600g sodium carbonate
- 2g dye solution
- 2.1g Tinopal CBSX
- Of this solution 1714g was sprayed onto the core particles so that the coated particle contains 30 wt% (dry weight) of sodium carbonate as a coating.
- Solution for coating made up as follows:
- 960g of demin water
- 640g citric acid
- 1.6g dye solution
- Of this solution 1285g was sprayed onto the crystals so that the coated particle contains 30wt% (dry weight) of citric acid as a coating.
- The dye solution for both granules contained 50g of Liquitint™ Pink AL a liquid preparation of a red dye ex Milliken and 5g of Pigmosol Blue 6900 (Pigment Blue 15:1 ex BASF).
- The reflectance spectra of both granules were measured on a reflectomer and the colour expresses as the CIE L*a*b* values (UV excluded). The results are shown below:
L* a* b* Reference (Na2CO3) 69.3 9.2 -19.1 Citric acid coated 63.9 20.3 -28.7 - The citric acid coated granules are more colourful with larger magnitude of a* and b* than the carbonate coated granules. The citric acid coated granules contain less dye than the carbonate coated.
- In contrast to powders being coated with citric acid the larger particle also has greater brightness in ambient light than powders.
- 25 of the coloured citric acid particles of example 2 were scattered on a 20 x 20 cm of piece of white woven Egyptian Cotton cloth placed in 500ml of demin water and left for 40 minutes. The cloth was then washed. No spots were observed from the citric acid coated particles.
Claims (19)
- 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:(i) from 40 to 90 wt % surfactant selected from: anionic surfactant; and, non-ionic surfactant;(ii) from 1 to 40 wt % citric acid; and,(iii) from 0 to 3 wt % of a perfume,
wherein the citric acid is present on the laundry detergent particle as a coating and the surfactant is present as a core. - A coated detergent particle according to claim 1, wherein the coated detergent particle comprises from 10 to 35 wt% of a citric acid as a coating
- A coated detergent particle according to claim 1 or 2, wherein the citric acid coating comprises a dye or pigment in the range from 0.0001 to 0.1 wt % dye or pigment.
- A coated detergent particle according to any preceding claim, wherein the core comprises a dye or pigment in the range from 0.0001 to 0.1 wt % dye or pigment.
- A coated detergent particle according to any one of the preceding claims, wherein the coated detergent particle comprises from 15 to 85 wt % anionic surfactant on surfactant and from 5 to 75 wt % non-ionic surfactant on surfactant.
- A coated detergent particle according to any one of claims 1 to 5, wherein the coated detergent particle comprises 15 to 100 wt % anionic surfactant on surfactant of which 20 to 30 wt % is sodium lauryl ether sulphate.
- A coated detergent particle according to any one of the preceding claims, wherein the anionic surfactant is selected from alkyl benzene sulphonates; alkyl ether sulphates; alkyl sulphates.
- A coated detergent particle according to claim 7, wherein the anionic surfactant is selected from sodium lauryl ether sulfate with 1 to 3 ethoxy groups, sodium C10 to C15 alkyl benzene sulphonates and sodium C12 to C18 alkyl sulphates.
- A coated detergent particle according to any one of the preceding claims, wherein the non-anionic surfactant is 10 to 50 EO.
- A coated detergent particle according to claim 9, wherein the non-ionic surfactant is the condensation products of aliphatic C8 to C18 primary or secondary linear or branched alcohols with 20 to 35 ethylene oxide groups.
- A coated detergent particle according to claim 3 or 4, wherein the core comprises a dye which is a blue or violet shading dye.
- A coated detergent particle according to claim 3 or 4, wherein the coating comprises a dye is a blue or violet shading dye.
- A coated detergent particle according to any one of the preceding claims, wherein the particle comprises from 0 to 15 wt % water.
- A coated detergent particle according to claim 13, wherein the particle comprises from 1 to 5 wt % water.
- A coated detergent particle according to any one of the preceding claims, wherein the coated detergent particle comprises from 10 to 100 wt % of a detergent formulation in a package.
- A coated detergent particle according to claim 15, wherein the coated detergent particle comprises from 50 to 100 wt % of a detergent formulation in a package.
- A coated detergent particle according to claim 16, wherein the coated detergent particle comprises from 80 to 100 wt % of a detergent formulation in a package.
- A coated detergent particle according to claim 17, wherein the coated detergent particle comprises from 90 to 100 wt % of a detergent formulation in a package.
- A coated detergent particle according to any one of the preceding claims, wherein at least 90 to 100 % of the coated detergent particles in the in the x, y and z dimensions are within a 20 % variable from the largest to the smallest coated detergent particle.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP10187522A EP2441822A1 (en) | 2010-10-14 | 2010-10-14 | Laundry detergent particles |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP10187522A EP2441822A1 (en) | 2010-10-14 | 2010-10-14 | Laundry detergent particles |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2441822A1 true EP2441822A1 (en) | 2012-04-18 |
Family
ID=43570488
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP10187522A Withdrawn EP2441822A1 (en) | 2010-10-14 | 2010-10-14 | Laundry detergent particles |
Country Status (1)
Country | Link |
---|---|
EP (1) | EP2441822A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105934508A (en) * | 2014-02-19 | 2016-09-07 | 美利肯公司 | Composition comprising benefit agent and aprotic solvent |
EP3339407A1 (en) * | 2016-12-22 | 2018-06-27 | The Procter & Gamble Company | Laundry detergent composition |
Citations (50)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1296839A (en) | 1969-05-29 | 1972-11-22 | ||
GB1372034A (en) | 1970-12-31 | 1974-10-30 | Unilever Ltd | Detergent compositions |
EP0070074A2 (en) | 1981-07-13 | 1983-01-19 | THE PROCTER & GAMBLE COMPANY | Foaming surfactant compositions |
US4435307A (en) | 1980-04-30 | 1984-03-06 | Novo Industri A/S | Detergent cellulase |
EP0218272A1 (en) | 1985-08-09 | 1987-04-15 | Gist-Brocades N.V. | Novel lipolytic enzymes and their use in detergent compositions |
EP0258068A2 (en) | 1986-08-29 | 1988-03-02 | Novo Nordisk A/S | Enzymatic detergent additive |
EP0260105A2 (en) | 1986-09-09 | 1988-03-16 | Genencor, Inc. | Preparation of enzymes having altered activity |
EP0305216A1 (en) | 1987-08-28 | 1989-03-01 | Novo Nordisk A/S | Recombinant Humicola lipase and process for the production of recombinant humicola lipases |
JPS6474992A (en) | 1987-09-16 | 1989-03-20 | Fuji Oil Co Ltd | Dna sequence, plasmid and production of lipase |
EP0328177A2 (en) | 1988-02-10 | 1989-08-16 | Unilever N.V. | Liquid detergents |
EP0331376A2 (en) | 1988-02-28 | 1989-09-06 | Amano Pharmaceutical Co., Ltd. | Recombinant DNA, bacterium of the genus pseudomonas containing it, and process for preparing lipase by using it |
WO1989009259A1 (en) | 1988-03-24 | 1989-10-05 | Novo-Nordisk A/S | A cellulase preparation |
EP0407225A1 (en) | 1989-07-07 | 1991-01-09 | Unilever Plc | Enzymes and enzymatic detergent compositions |
WO1991016422A1 (en) | 1990-04-14 | 1991-10-31 | Kali-Chemie Aktiengesellschaft | Alkaline bacillus lipases, coding dna sequences therefor and bacilli which produce these lipases |
WO1992005249A1 (en) | 1990-09-13 | 1992-04-02 | Novo Nordisk A/S | Lipase variants |
WO1992019709A1 (en) | 1991-04-30 | 1992-11-12 | The Procter & Gamble Company | Built liquid detergents with boric-polyol complex to inhibit proteolytic enzyme |
WO1992019708A1 (en) | 1991-04-30 | 1992-11-12 | The Procter & Gamble Company | Liquid detergents with aromatic borate ester to inhibit proteolytic enzyme |
WO1993024618A1 (en) | 1992-06-01 | 1993-12-09 | Novo Nordisk A/S | Peroxidase variants with improved hydrogen peroxide stability |
WO1994001541A1 (en) | 1992-07-06 | 1994-01-20 | Novo Nordisk A/S | C. antarctica lipase and lipase variants |
WO1994025578A1 (en) | 1993-04-27 | 1994-11-10 | Gist-Brocades N.V. | New lipase variants for use in detergent applications |
WO1995006720A1 (en) | 1993-08-30 | 1995-03-09 | Showa Denko K.K. | Novel lipase, microorganism producing the lipase, process for producing the lipase, and use of the lipase |
WO1995010602A1 (en) | 1993-10-13 | 1995-04-20 | Novo Nordisk A/S | H2o2-stable peroxidase variants |
WO1995014783A1 (en) | 1993-11-24 | 1995-06-01 | Showa Denko K.K. | Lipase gene and variant lipase |
WO1995022615A1 (en) | 1994-02-22 | 1995-08-24 | Novo Nordisk A/S | A method of preparing a variant of a lipolytic enzyme |
WO1995026397A1 (en) | 1994-03-29 | 1995-10-05 | Novo Nordisk A/S | Alkaline bacillus amylase |
WO1995030744A2 (en) | 1994-05-04 | 1995-11-16 | Genencor International Inc. | Lipases with improved surfactant resistance |
WO1995035381A1 (en) | 1994-06-20 | 1995-12-28 | Unilever N.V. | Modified pseudomonas lipases and their use |
WO1996000292A1 (en) | 1994-06-23 | 1996-01-04 | Unilever N.V. | Modified pseudomonas lipases and their use |
WO1996012012A1 (en) | 1994-10-14 | 1996-04-25 | Solvay S.A. | Lipase, microorganism producing same, method for preparing said lipase and uses thereof |
WO1996013580A1 (en) | 1994-10-26 | 1996-05-09 | Novo Nordisk A/S | An enzyme with lipolytic activity |
WO1996027002A1 (en) | 1995-02-27 | 1996-09-06 | Novo Nordisk A/S | Novel lipase gene and process for the production of lipase with the use of the same |
WO1996029397A1 (en) | 1995-03-17 | 1996-09-26 | Novo Nordisk A/S | Novel endoglucanases |
WO1997004079A1 (en) | 1995-07-14 | 1997-02-06 | Novo Nordisk A/S | A modified enzyme with lipolytic activity |
WO1997007202A1 (en) | 1995-08-11 | 1997-02-27 | Novo Nordisk A/S | Novel lipolytic enzymes |
US5648263A (en) | 1988-03-24 | 1997-07-15 | Novo Nordisk A/S | Methods for reducing the harshness of a cotton-containing fabric |
GB2315764A (en) * | 1996-07-31 | 1998-02-11 | Procter & Gamble | Detergent comprising surfactant, acid source and alkaline source |
WO1998012307A1 (en) | 1996-09-17 | 1998-03-26 | Novo Nordisk A/S | Cellulase variants |
WO1998015257A1 (en) | 1996-10-08 | 1998-04-16 | Novo Nordisk A/S | Diaminobenzoic acid derivatives as dye precursors |
WO1999032599A1 (en) | 1997-12-19 | 1999-07-01 | Manro Performance Chemicals Limited | Method of manufacturing particles |
WO2000060060A2 (en) | 1999-03-31 | 2000-10-12 | Novozymes A/S | Polypeptides having alkaline alpha-amylase activity and nucleic acids encoding same |
WO2000060063A1 (en) | 1999-03-31 | 2000-10-12 | Novozymes A/S | Lipase variant |
US7022660B1 (en) | 1999-03-09 | 2006-04-04 | The Procter & Gamble Company | Process for preparing detergent particles having coating or partial coating layers |
WO2008007318A2 (en) | 2006-07-07 | 2008-01-17 | The Procter & Gamble Company | Detergent compositions |
WO2009087524A1 (en) | 2008-01-04 | 2009-07-16 | The Procter & Gamble Company | Enzyme and fabric hueing agent containing compositions |
WO2009090576A2 (en) | 2008-01-11 | 2009-07-23 | Procter & Gamble International Operations Sa | Cleaning and/or treatment compositions |
WO2009107091A2 (en) | 2008-02-29 | 2009-09-03 | The Procter & Gamble Company | Detergent composition comprising lipase |
WO2009111258A2 (en) | 2008-02-29 | 2009-09-11 | The Procter & Gamble Company | Detergent composition comprising lipase |
WO2009141173A1 (en) | 2008-05-20 | 2009-11-26 | Unilever Plc | Shading composition |
WO2009148983A1 (en) | 2008-06-06 | 2009-12-10 | The Procter & Gamble Company | Detergent composition comprising a variant of a family 44 xyloglucanase |
EP2166077A1 (en) * | 2008-09-12 | 2010-03-24 | The Procter and Gamble Company | Particles comprising a hueing dye |
-
2010
- 2010-10-14 EP EP10187522A patent/EP2441822A1/en not_active Withdrawn
Patent Citations (53)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1296839A (en) | 1969-05-29 | 1972-11-22 | ||
GB1372034A (en) | 1970-12-31 | 1974-10-30 | Unilever Ltd | Detergent compositions |
US4435307A (en) | 1980-04-30 | 1984-03-06 | Novo Industri A/S | Detergent cellulase |
EP0070074A2 (en) | 1981-07-13 | 1983-01-19 | THE PROCTER & GAMBLE COMPANY | Foaming surfactant compositions |
EP0218272A1 (en) | 1985-08-09 | 1987-04-15 | Gist-Brocades N.V. | Novel lipolytic enzymes and their use in detergent compositions |
EP0258068A2 (en) | 1986-08-29 | 1988-03-02 | Novo Nordisk A/S | Enzymatic detergent additive |
EP0260105A2 (en) | 1986-09-09 | 1988-03-16 | Genencor, Inc. | Preparation of enzymes having altered activity |
EP0305216A1 (en) | 1987-08-28 | 1989-03-01 | Novo Nordisk A/S | Recombinant Humicola lipase and process for the production of recombinant humicola lipases |
JPS6474992A (en) | 1987-09-16 | 1989-03-20 | Fuji Oil Co Ltd | Dna sequence, plasmid and production of lipase |
EP0328177A2 (en) | 1988-02-10 | 1989-08-16 | Unilever N.V. | Liquid detergents |
EP0331376A2 (en) | 1988-02-28 | 1989-09-06 | Amano Pharmaceutical Co., Ltd. | Recombinant DNA, bacterium of the genus pseudomonas containing it, and process for preparing lipase by using it |
US5691178A (en) | 1988-03-22 | 1997-11-25 | Novo Nordisk A/S | Fungal cellulase composition containing alkaline CMC-endoglucanase and essentially no cellobiohydrolase |
WO1989009259A1 (en) | 1988-03-24 | 1989-10-05 | Novo-Nordisk A/S | A cellulase preparation |
US5648263A (en) | 1988-03-24 | 1997-07-15 | Novo Nordisk A/S | Methods for reducing the harshness of a cotton-containing fabric |
US5776757A (en) | 1988-03-24 | 1998-07-07 | Novo Nordisk A/S | Fungal cellulase composition containing alkaline CMC-endoglucanase and essentially no cellobiohydrolase and method of making thereof |
EP0407225A1 (en) | 1989-07-07 | 1991-01-09 | Unilever Plc | Enzymes and enzymatic detergent compositions |
WO1991016422A1 (en) | 1990-04-14 | 1991-10-31 | Kali-Chemie Aktiengesellschaft | Alkaline bacillus lipases, coding dna sequences therefor and bacilli which produce these lipases |
WO1992005249A1 (en) | 1990-09-13 | 1992-04-02 | Novo Nordisk A/S | Lipase variants |
WO1992019708A1 (en) | 1991-04-30 | 1992-11-12 | The Procter & Gamble Company | Liquid detergents with aromatic borate ester to inhibit proteolytic enzyme |
WO1992019709A1 (en) | 1991-04-30 | 1992-11-12 | The Procter & Gamble Company | Built liquid detergents with boric-polyol complex to inhibit proteolytic enzyme |
WO1993024618A1 (en) | 1992-06-01 | 1993-12-09 | Novo Nordisk A/S | Peroxidase variants with improved hydrogen peroxide stability |
WO1994001541A1 (en) | 1992-07-06 | 1994-01-20 | Novo Nordisk A/S | C. antarctica lipase and lipase variants |
WO1994025578A1 (en) | 1993-04-27 | 1994-11-10 | Gist-Brocades N.V. | New lipase variants for use in detergent applications |
WO1995006720A1 (en) | 1993-08-30 | 1995-03-09 | Showa Denko K.K. | Novel lipase, microorganism producing the lipase, process for producing the lipase, and use of the lipase |
WO1995010602A1 (en) | 1993-10-13 | 1995-04-20 | Novo Nordisk A/S | H2o2-stable peroxidase variants |
WO1995014783A1 (en) | 1993-11-24 | 1995-06-01 | Showa Denko K.K. | Lipase gene and variant lipase |
WO1995022615A1 (en) | 1994-02-22 | 1995-08-24 | Novo Nordisk A/S | A method of preparing a variant of a lipolytic enzyme |
WO1995026397A1 (en) | 1994-03-29 | 1995-10-05 | Novo Nordisk A/S | Alkaline bacillus amylase |
WO1995030744A2 (en) | 1994-05-04 | 1995-11-16 | Genencor International Inc. | Lipases with improved surfactant resistance |
WO1995035381A1 (en) | 1994-06-20 | 1995-12-28 | Unilever N.V. | Modified pseudomonas lipases and their use |
WO1996000292A1 (en) | 1994-06-23 | 1996-01-04 | Unilever N.V. | Modified pseudomonas lipases and their use |
WO1996012012A1 (en) | 1994-10-14 | 1996-04-25 | Solvay S.A. | Lipase, microorganism producing same, method for preparing said lipase and uses thereof |
WO1996013580A1 (en) | 1994-10-26 | 1996-05-09 | Novo Nordisk A/S | An enzyme with lipolytic activity |
WO1996027002A1 (en) | 1995-02-27 | 1996-09-06 | Novo Nordisk A/S | Novel lipase gene and process for the production of lipase with the use of the same |
WO1996029397A1 (en) | 1995-03-17 | 1996-09-26 | Novo Nordisk A/S | Novel endoglucanases |
WO1997004079A1 (en) | 1995-07-14 | 1997-02-06 | Novo Nordisk A/S | A modified enzyme with lipolytic activity |
WO1997007202A1 (en) | 1995-08-11 | 1997-02-27 | Novo Nordisk A/S | Novel lipolytic enzymes |
GB2315764A (en) * | 1996-07-31 | 1998-02-11 | Procter & Gamble | Detergent comprising surfactant, acid source and alkaline source |
WO1998012307A1 (en) | 1996-09-17 | 1998-03-26 | Novo Nordisk A/S | Cellulase variants |
WO1998015257A1 (en) | 1996-10-08 | 1998-04-16 | Novo Nordisk A/S | Diaminobenzoic acid derivatives as dye precursors |
WO1999032599A1 (en) | 1997-12-19 | 1999-07-01 | Manro Performance Chemicals Limited | Method of manufacturing particles |
US7022660B1 (en) | 1999-03-09 | 2006-04-04 | The Procter & Gamble Company | Process for preparing detergent particles having coating or partial coating layers |
WO2000060060A2 (en) | 1999-03-31 | 2000-10-12 | Novozymes A/S | Polypeptides having alkaline alpha-amylase activity and nucleic acids encoding same |
WO2000060063A1 (en) | 1999-03-31 | 2000-10-12 | Novozymes A/S | Lipase variant |
WO2008007318A2 (en) | 2006-07-07 | 2008-01-17 | The Procter & Gamble Company | Detergent compositions |
WO2009087524A1 (en) | 2008-01-04 | 2009-07-16 | The Procter & Gamble Company | Enzyme and fabric hueing agent containing compositions |
WO2009090576A2 (en) | 2008-01-11 | 2009-07-23 | Procter & Gamble International Operations Sa | Cleaning and/or treatment compositions |
WO2009107091A2 (en) | 2008-02-29 | 2009-09-03 | The Procter & Gamble Company | Detergent composition comprising lipase |
WO2009111258A2 (en) | 2008-02-29 | 2009-09-11 | The Procter & Gamble Company | Detergent composition comprising lipase |
WO2009141173A1 (en) | 2008-05-20 | 2009-11-26 | Unilever Plc | Shading composition |
WO2009141172A1 (en) | 2008-05-20 | 2009-11-26 | Unilever Plc | Shading composition |
WO2009148983A1 (en) | 2008-06-06 | 2009-12-10 | The Procter & Gamble Company | Detergent composition comprising a variant of a family 44 xyloglucanase |
EP2166077A1 (en) * | 2008-09-12 | 2010-03-24 | The Procter and Gamble Company | Particles comprising a hueing dye |
Non-Patent Citations (11)
Title |
---|
"colour index", 2002 |
"CTFA", 1992, CFTA PUBLICATIONS |
"Industrial Dyes", 2003, WILEY-VCH |
"Industrial Inorganic Pigments", 2005, WILEY-VCH |
"Industrial Organic Pigments", 2004, WILEY-VCH |
"McCutcheon's Emulsifiers and Detergents", MANUFACTURING CONFECTIONERS COMPANY |
"OPD", 1993, SCHNELL PUBLISHING CO |
DARTOIS ET AL., BIOCHEMICA ET BIOPHYSICA ACTA, vol. 1131, 1993, pages 253 - 360 |
H. STACHE: "Tenside-Taschenbuch", 1981, CARL HAUSER VERLAG |
POUCHER, JOURNAL OF THE SOCIETY OF COSMETIC CHEMISTS, vol. 6, no. 2, 1955, pages 80 |
SCHWARTZ; PERRY: "Surface Active Agents", vol. 1, 1949, INTERSCIENCE |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105934508A (en) * | 2014-02-19 | 2016-09-07 | 美利肯公司 | Composition comprising benefit agent and aprotic solvent |
EP3339407A1 (en) * | 2016-12-22 | 2018-06-27 | The Procter & Gamble Company | Laundry detergent composition |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP2627757B1 (en) | Laundry detergent particles | |
EP2627760B1 (en) | Laundry detergent particles | |
EP2834336B1 (en) | Laundry detergent particles | |
EP2834338B1 (en) | Laundry detergent particle | |
EP2627754B1 (en) | Laundry detergent particles | |
EP2834335B1 (en) | Laundry detergent particles | |
EP2834337B1 (en) | Laundry detergent particles | |
EP2627758B1 (en) | Laundry detergent particles | |
EP2627753B1 (en) | Laundry detergent particle | |
EP2441822A1 (en) | Laundry detergent particles |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
AX | Request for extension of the european patent |
Extension state: BA ME |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN |
|
18W | Application withdrawn |
Effective date: 20120521 |