The present application relates to a laundry detergent composition comprising a glycosyl hydrolase and a benefit agent containing delivery particle.
Benefit agents, such as perfumes, silicones, waxes, vitamins and fabric softening agents, are expensive and generally less effective when employed at high levels in fabric care compositions. As a result, there is a desire to maximize the effectiveness of such benefit agents. One method of achieving such objective is to improve the delivery efficiencies of such benefit agents. Unfortunately, it is difficult to improve the delivery efficiencies of benefit agents as such agents may be lost do to the agents' physical or chemical characteristics, or such agents may be incompatible with other compositional components or the situs that is treated.
Accordingly, there is a need for a composition that provides improved benefit agent delivery efficiency.
The present invention relates to a laundry detergent composition comprising a glycosyl hydrolase and a benefit agent containing delivery particles comprising a core material and a wall material that at least partially surrounds the core material. Without wishing to be bound by theory the Inventors believe that the action of certain glycosyl hydrolase on the fabric surface opens up the pore structure of the cotton fibres so as to increase the entrapment of the benefit agent containing particles in the fabric. In addition, the action of these certain glycosyl hydrolases increases the surface area of the fabric, further improving the performance of the benefit agent during the laundering process.
The glycosyl hydrolase has enzymatic activity towards both xyloglucan and amorphous 4cellulose substrates, wherein the glycosyl hydrolase is selected from GH families 5, 12, 44 or 74.
The enzymatic activity towards xyloglucan substrates is described in more detail below. The enzymatic activity towards amorphous cellulose substrates is described in more detail below.
The glycosyl hydrolase enzyme preferably belongs to glycosyl hydrolase family 44. The glycosyl hydrolase (GH) family definition is described in more detail in Biochem J. 1991, v280, 309-316.
The glycosyl hydrolase enzyme preferably has a sequence at least 70%, or at least 75% or at least 80%, or at least 85%, or at least 90%, or at least 95% identical to sequence ID No. 1.
For purposes of the present invention, the degree of identity between two amino acid sequences is determined using the Needleman-Wunsch algorithm (Needleman and Wunsch, 1970, J. Mol. BioL. 48: 443-453) as implemented in the Needle program of the EMBOSS package (EMBOSS: The European Molecular Biology Open Software Suite, Rice et al., 2000, Trends in Genetics 16: 276-277), preferably version 3.0.0 or later. The optional parameters used are gap open penalty of 10, gap extension penalty of 0.5, and the EBLOSUM62 (EMBOSS version of BLOSUM62) substitution matrix. The output of Needle labeled “longest identity” (obtained using the −nobrief option) is used as the percent identity and is calculated as follows: (Identical Residues×100)/(Length of Alignment−Total Number of Gaps in Alignment).
Suitable glycosyl hydrolases are selected from the group consisting of: GH family 44 glycosyl hydrolases from Paenibacillus polyxyma (wild-type) such as XYG1006 described in WO 01/062903 or are variants thereof; GH family 12 glycosyl hydrolases from Bacillus licheniformis (wild-type) such as Seq. No. ID: 1 described in WO 99/02663 or are variants thereof; GH family 5 glycosyl hydrolases from Bacillus agaradhaerens (wild type) or variants thereof; GH family 5 glycosyl hydrolases from Paenibacillus (wild type) such as XYG1034 and XYG 1022 described in WO 01/064853 or variants thereof; GH family 74 glycosyl hydrolases from Jonesia sp. (wild type) such as XYG1020 described in WO 2002/077242 or variants thereof; and GH family 74 glycosyl hydrolases from Trichoderma Reesei (wild type), such as the enzyme described in more detail in Sequence ID no. 2 of WO03/089598, or variants thereof.
Preferred glycosyl hydrolases are selected from the group consisting of: GH family 44 glycosyl hydrolases from Paenibacillus polyxyma (wild-type) such as XYG1006 or are variants thereof.
An enzyme is deemed to have activity towards xyloglucan if the pure enzyme has a specific activity of greater than 50000 XyloU/g according to the following assay at pH 7.5.
The xyloglucanase activity is measured using AZCL-xyloglucan from Megazyme, Ireland as substrate (blue substrate).
A solution of 0.2% of the blue substrate is suspended in a 0.1M phosphate buffer pH 7.5, 20° C. under stirring in a 1.5ml Eppendorf tubes (0.75 ml to each), 50 microlitres enzyme solution is added and they are incubated in an Eppendorf Thermomixer for 20 minutes at 40° C., with a mixing of 1200 rpm. After incubation the coloured solution is separated from the solid by 4 minutes centrifugation at 14,000 rpm and the absorbance of the supernatant is measured at 600 nm in a 1 cm cuvette using a spectrophotometer. One XyloU unit is defined as the amount of enzyme resulting in an absorbance of 0.24 in a 1 cm cuvette at 600 nm.
Only absorbance values between 0.1 and 0.8 are used to calculate the XyloU activity. If an absorbance value is measured outside this range, optimization of the starting enzyme concentration should be carried out accordingly.
An enzyme is deemed to have activity towards amorphous cellulose if the pure enzyme has a specific activity of greater than 20000 EBG/g according to the following assay at pH 7.5. Chemicals used as buffers and substrates were commercial products of at least reagent grade.
Calculate Adelta=Aenz−Awater.
The Inventors discovered that the problem of achieving effective and efficient benefit agent delivery can be solved in an economical manner when a benefit agent containing delivery particle having a certain combination of physical and chemical characteristics is incorporated in a laundry detergent composition that additionally comprises a glycosyl hydrolase. Such physical and chemical characteristics are defined by the following parameters: particle size coefficient of variation, fracture strength, benefit agent retention ratio and average particle size. Such parameters may be combined to yield a Delivery Index.
In one aspect, the particle comprises a core material and a wall material that at least partially surrounds the core material, said particle having a Delivery Index of at least about 0.05, at least about 7, or at least about 70.
In one aspect, the particle comprises a core material and a wall material that at least partially surrounds the core material, said particle having:
In one aspect of the present invention, said particle may have and/or comprise any combination of the parameters described in the present specification.
Useful wall materials include materials selected from the group consisting of polyethylenes, polyamides, polystyrenes, polyisoprenes, polycarbonates, polyesters, polyacrylates, polyureas, polyurethanes, polyolefins, polysaccharides, epoxy resins, vinyl polymers, and mixtures thereof. In one aspect, useful wall materials include materials that are sufficiently impervious to the core material and the materials in the environment in which the benefit agent containing delivery particle will be employed, to permit the delivery benefit to be obtained. Suitable impervious wall materials include materials selected from the group consisting of reaction products of one or more amines with one or more aldehydes, such as urea cross-linked with formaldehyde or gluteraldehyde, melamine cross-linked with formaldehyde; gelatin-polyphosphate coacervates optionally cross-linked with gluteraldehyde; gelatin-gum Arabic coacervates; cross-linked silicone fluids; polyamine reacted with polyisocyanates and mixtures thereof. In one aspect, the wall material comprises melamine cross-linked with formaldehyde.
Useful core materials include perfume raw materials, silicone oils, waxes, hydrocarbons, higher fatty acids, essential oils, lipids, skin coolants, vitamins, sunscreens, antioxidants, glycerine, catalysts, bleach particles, silicon dioxide particles, malodor reducing agents, dyes, brighteners, antibacterial actives, antiperspirant actives, cationic polymers and mixtures thereof. In one aspect, said perfume raw material is selected from the group consisting of alcohols, ketones, aldehydes, esters, ethers, nitriles alkenes. In one aspect the core material comprises a perfume. In one aspect, said perfume comprises perfume raw materials selected from the group consisting of alcohols, ketones, aldehydes, esters, ethers, nitriles alkenes and mixtures thereof. In one aspect, said perfume may comprise a perfume raw material selected from the group consisting of perfume raw materials having a boiling point (B.P.) lower than about 250° C. and a C log P lower than about 3, perfume raw materials having a B.P. of greater than about 250° C. and a C log P of greater than about 3, perfume raw materials having a B.P. of greater than about 250° C. and a C log P lower than about 3, perfume raw materials having a B.P. lower than about 250° C. and a C log P greater than about 3 and mixtures thereof. Perfume raw materials having a boiling point B.P. lower than about 250° C. and a C log P lower than about 3 are known as Quadrant I perfume raw materials, perfume raw materials having a B.P. of greater than about 250° C. and a C log P of greater than about 3 are known as Quadrant IV perfume raw materials, perfume raw materials having a B.P. of greater than about 250° C. and a C log P lower than about 3 are known as Quadrant II perfume raw materials, perfume raw materials having a B.P. lower than about 250° C. and a C log P greater than about 3 are known as a Quadrant III perfume raw materials. In one aspect, said perfume comprises a perfume raw material having B.P. of lower than about 250° C. In one aspect, said perfume comprises a perfume raw material selected from the group consisting of Quadrant I, II, III perfume raw materials and mixtures thereof. In one aspect, said perfume comprises a Quadrant III perfume raw material. Suitable Quadrant I, II, III and IV perfume raw materials are disclosed in U.S. Pat. No. 6,869,923 B1.
In one aspect, said perfume comprises a Quadrant IV perfume raw material. While not being bound by theory, it is believed that such Quadrant IV perfume raw materials can improve perfume odor “balance”. Said perfume may comprise, based on total perfume weight, less than about 30%, less than about 20%, or even less than about 15% of said Quadrant IV perfume raw material.
The perfume raw materials and accords may be obtained from one or more of the following companies Firmenich (Geneva, Switzerland), Givaudan (Argenteuil, France), IFF (Hazlet, N.J.), Quest (Mount Olive, N.J.), Bedoukian (Danbury, Conn.), Sigma Aldrich (St. Louis, Mo.), Millennium Specialty Chemicals (Olympia Fields, Ill.), Polarone International (Jersey City, N.J.), Fragrance Resources (Keyport, N.J.), and Aroma & Flavor Specialties (Danbury, Conn.).
The particle disclosed in the present application may be made via the teachings of U.S. Pat. No. 6,592,990 B2 and/or U.S. Pat. No. 6,544,926 B1 and the examples disclosed herein.
The laundry detergent composition comprises: (a) a glycosyl hydrolase having enzymatic activity towards both xyloglucan and amorphous cellulose substrates, wherein the glycosyl hydrolase is selected from GH families 5, 12, 44 or 74; (b) a particle comprising a core material and a wall material that surrounds the core material, said particle preferably having a Delivery Index of at least about 0.05 said composition being a consumer product; and (c) detersive surfactant.
While the precise level of particle (b) that is employed depends on the type and end use of the composition, a composition may comprise from about 0.01 to about 10, from about 0.1 to about 10, or even from about 0.2 to about 5 weight % of said particle based on total composition weight. In one aspect, a cleaning composition may comprise, from about 0.1 to about 1 weight % of such particle based on total composition weight of such particle. In one aspect, a fabric treatment composition may comprise, based on total fabric treatment composition weight, form about 0.01 to about 10% of such particle.
Aspects of the invention include the use of the particles of the present invention in laundry detergent compositions (e.g., TIDE™). The compositions disclosed herein are typically formulated such that, during use in aqueous cleaning operations, the wash water will have a pH of between about 6.5 and about 12, or between about 7.5 and 10.5.
Laundry detergent compositions disclosed herein typically comprise a fabric softening active (“FSA”). Suitable fabric softening actives, include, but are not limited to, materials selected from the group consisting of quats, amines, fatty esters, sucrose esters, silicones, dispersible polyolefins, clays, polysaccharides, fatty oils, polymer latexes and mixtures thereof.
The composition is preferably in the form of a liquid. The composition typically comprises adjunct materials. The adjunct materials are described in more detail below.
The composition can be in any form. The composition may in the form of a liquid or solid. The composition is preferably in the form of a liquid. The composition may be at least partially, preferably completely, enclosed by a water-soluble film.
Solid Laundry Detergent Composition
In one embodiment of the present invention, the composition is a solid laundry detergent composition, preferably a solid laundry powder detergent composition.
The composition preferably comprises from 0 wt % to 10 wt %, or even to 5 wt % zeolite builder. The composition also preferably comprises from 0 wt % to 10 wt %, or even to 5 wt % phosphate builder.
The composition typically comprises anionic detersive surfactant, preferably linear alkyl benzene sulphonate, preferably in combination with a co-surfactant. Preferred co-surfactants are alkyl ethoxylated sulphates having an average degree of ethoxylation of from 1 to 10, preferably from 1 to 3, and/or ethoxylated alcohols having an average degree of ethoxylation of from 1 to 10, preferably from 3 to 7.
The composition preferably comprises chelant, preferably the composition comprises from 0.3 wt % to 2.0 wt % chelant. A suitable chelant is ethylenediamine-N,N′-disuccinic acid (EDDS).
The composition may comprise cellulose polymers, such as sodium or potassium salts of carboxymethyl cellulose, carboxyethyl cellulose, sulfoethyl cellulose, sulfopropyl cellulose, cellulose sulfate, phosphorylated cellulose, carboxymethyl hydroxyethyl cellulose, carboxymethyl hydroxypropyl cellulose, sulfoethyl hydroxyethyl cellulose, sulfoethyl hydroxypropyl cellulose, carboxymethyl methyl hydroxyethyl cellulose, carboxymethyl methyl cellulose, sulfoethyl methyl hydroxyethyl cellulose, sulfoethyl methyl cellulose, carboxymethyl ethyl hydroxyethyl cellulose, carboxymethyl ethyl cellulose, sulfoethyl ethyl hydroxyethyl cellulose, sulfoethyl ethyl cellulose, carboxymethyl methyl hydroxypropyl cellulose, sulfoethyl methyl hydroxypropyl cellulose, carboxymethyl dodecyl cellulose, carboxymethyl dodecoyl cellulose, carboxymethyl cyanoethyl cellulose, and sulfoethyl cyanoethyl cellulose. The cellulose may be a substituted cellulose substituted by two or more different substituents, such as methyl and hydroxyethyl cellulose.
The composition may comprise soil release polymers, such as Repel-o-Tex™. Other suitable soil release polymers are anionic soil release polymers. Suitable soil release polymers are described in more detail in WO05123835A1, WO07079850A1 and WO08110318A2.
The composition may comprise a spray-dried powder. The spray-dried powder may comprise a silicate salt, such as sodium silicate.
Suitable adjunct materials include, but are not limited to, surfactants, builders, chelating agents, dye transfer inhibiting agents, dispersants, enzymes, and enzyme stabilizers, catalytic materials, bleach activators, polymeric dispersing agents, clay soil removal/anti-redeposition agents, brighteners, suds suppressors, dyes, additional perfume and perfume delivery systems, structure elasticizing agents, fabric softeners, carriers, hydrotropes, processing aids and/or pigments. In addition to the disclosure below, suitable examples of such other adjuncts and levels of use are found in U.S. Pat. Nos. 5,576,282, 6,306,812 B1 and 6,326,348 B1 that are incorporated by reference.
As stated, the adjunct ingredients are not essential to Applicants' cleaning and fabric care compositions. Thus, certain embodiments of Applicants' compositions do not contain one or more of the following adjuncts materials: bleach activators, surfactants, builders, chelating agents, dye transfer inhibiting agents, dispersants, enzymes, and enzyme stabilizers, catalytic metal complexes, polymeric dispersing agents, clay and soil removal/anti-redeposition agents, brighteners, suds suppressors, dyes, additional perfumes and perfume delivery systems, structure elasticizing agents, fabric softeners, carriers, hydrotropes, processing aids and/or pigments. However, when one or more adjuncts is present, such one or more adjuncts may be present as detailed below:
Surfactants—The compositions according to the present invention can comprise a surfactant or surfactant system wherein the surfactant can be selected from nonionic and/or anionic and/or cationic surfactants and/or ampholytic and/or zwitterionic and/or semi-polar nonionic surfactants. The surfactant is typically present at a level of from about 0.1%, from about 1%, or even from about 5% by weight of the cleaning compositions to about 99.9%, to about 80%, to about 35%, or even to about 30% by weight of the cleaning compositions.
Builders—The compositions of the present invention can comprise one or more detergent builders or builder systems. When present, the compositions will typically comprise at least about 1% builder, or from about 5% or 10% to about 80%, 50%, or even 30% by weight, of said builder. Builders include, but are not limited to, the alkali metal, ammonium and alkanolammonium salts of polyphosphates, alkali metal silicates, alkaline earth and alkali metal carbonates, aluminosilicate builders polycarboxylate compounds. ether hydroxypolycarboxylates, copolymers of maleic anhydride with ethylene or vinyl methyl ether, 1,3,5-trihydroxybenzene-2,4,6-trisulphonic acid, and carboxymethyl-oxysuccinic acid, the various alkali metal, ammonium and substituted ammonium salts of polyacetic acids such as ethylenediamine tetraacetic acid and nitrilotriacetic acid, as well as polycarboxylates such as mellitic acid, succinic acid, oxydisuccinic acid, polymaleic acid, benzene 1,3,5-tricarboxylic acid, carboxymethyloxysuccinic acid, and soluble salts thereof.
Chelating Agents—The compositions herein may also optionally contain one or more copper, iron and/or manganese chelating agents. If utilized, chelating agents will generally comprise from about 0.1% by weight of the compositions herein to about 15%, or even from about 3.0% to about 15% by weight of the compositions herein.
Dye Transfer Inhibiting Agents—The compositions of the present invention may also include one or more dye transfer inhibiting agents. Suitable polymeric dye transfer inhibiting agents include, but are not limited to, polyvinylpyrrolidone polymers, polyamine N-oxide polymers, copolymers of N-vinylpyrrolidone and N-vinylimidazole, polyvinyloxazolidones and polyvinylimidazoles or mixtures thereof. When present in the compositions herein, the dye transfer inhibiting agents are present at levels from about 0.0001%, from about 0.01%, from about 0.05% by weight of the cleaning compositions to about 10%, about 2%, or even about 1% by weight of the cleaning compositions.
Dispersants—The compositions of the present invention can also contain dispersants. Suitable water-soluble organic materials are the homo- or co-polymeric acids or their salts, in which the polycarboxylic acid may comprise at least two carboxyl radicals separated from each other by not more than two carbon atoms.
Enzymes—The compositions can comprise one or more detergent enzymes which provide cleaning performance and/or fabric care benefits. Examples of suitable enzymes include, but are not limited to, hemicellulases, peroxidases, proteases, other cellulases, other xylanases, lipases, phospholipases, esterases, cutinases, pectinases, keratanases, reductases, oxidases, phenoloxidases, lipoxygenases, ligninases, pullulanases, tannases, pentosanases, malanases, β-glucanases, arabinosidases, hyaluronidase, chondroitinase, laccase, and amylases, or mixtures thereof. A typical combination is a cocktail of conventional applicable enzymes like protease, lipase, cutinase and/or cellulase in conjunction with amylase.
Enzyme Stabilizers—Enzymes for use in compositions, for example, detergents can be stabilized by various techniques. The enzymes employed herein can be stabilized by the presence of water-soluble sources of calcium and/or magnesium ions in the finished compositions that provide such ions to the enzymes.
Catalytic Metal Complexes—Applicants' compositions may include catalytic metal complexes. One type of metal-containing bleach catalyst is a catalyst system comprising a transition metal cation of defined bleach catalytic activity, such as copper, iron, titanium, ruthenium, tungsten, molybdenum, or manganese cations, an auxiliary metal cation having little or no bleach catalytic activity, such as zinc or aluminum cations, and a sequestrate having defined stability constants for the catalytic and auxiliary metal cations, particularly ethylenediaminetetraacetic acid, ethylenediaminetetra (methyl-enephosphonic acid) and water-soluble salts thereof. Such catalysts are disclosed in U.S. Pat. No. 4,430,243.
If desired, the compositions herein can be catalyzed by means of a manganese compound. Such compounds and levels of use are well known in the art and include, for example, the manganese-based catalysts disclosed in U.S. Pat. No. 5,576,282.
Cobalt bleach catalysts useful herein are known, and are described, for example, in U.S. Pat. Nos. 5,597,936 and 5,595,967. Such cobalt catalysts are readily prepared by known procedures, such as taught for example in U.S. Pat. Nos. 5,597,936, and 5,595,967.
Compositions herein may also suitably include a transition metal complex of a macropolycyclic rigid ligand—abreviated as “MRL”. As a practical matter, and not by way of limitation, the compositions and cleaning processes herein can be adjusted to provide on the order of at least one part per hundred million of the benefit agent MRL species in the aqueous washing medium, and may provide from about 0.005 ppm to about 25 ppm, from about 0.05 ppm to about 10 ppm, or even from about 0.1 ppm to about 5 ppm, of the MRL in the wash liquor.
Preferred transition-metals in the instant transition-metal bleach catalyst include manganese, iron and chromium. Preferred MRL's herein are a special type of ultra-rigid ligand that is cross-bridged such as 5,12-diethyl-1,5,8,12-tetraazabicyclo[6.6.2]hexa-decane.
Suitable transition metal MRLs are readily prepared by known procedures, such as taught for example in WO 00/32601, and U.S. Pat. No. 6,225,464.
The compositions of the present invention can be formulated into any suitable form and prepared by any process chosen by the formulator, non-limiting examples of which are described in U.S. Pat. No. 5,879,584; U.S. Pat. No. 5,691,297; U.S. Pat. No. 5,574,005; U.S. Pat. No. 5,569,645; U.S. Pat. No. 5,565,422; U.S. Pat. No. 5,516,448; U.S. Pat. No. 5,489,392; U.S. Pat. No. 5,486,303.
It is understood that the test methods that are disclosed in the Test Methods Section of the present application must be used to determine the respective values of the parameters of Applicants' invention as such invention is described and claimed herein.
(1) Particle Size Distribution
(2) Benefit Agent Retention Ratio
where
where
(3) Fracture Strength
(4) C log P
(5) Boiling Point
(6) Delivery Index Calculation
The following are granular detergent compositions produced in accordance with the invention suitable for laundering fabrics.
1Random graft copolymer is a polyvinyl acetate grafted polyethylene oxide copolymer
2Polyethylenimine (MW = 600) with 20 ethoxylate groups per —NH.
3Amphiphilic alkoxylated grease cleaning polymer is a polyethylenimine (MW = 600)
4Reversible Protease inhibitor of structure:
The dimensions and values disclosed herein are not to be understood as being strictly limited to the exact numerical values recited. Instead, unless otherwise specified, each such dimension is intended to mean both the recited value and a functionally equivalent range surrounding that value. For example, a dimension disclosed as “40 mm” is intended to mean “about 40 mm”.
Every document cited herein, including any cross referenced or related patent or application, is hereby incorporated herein by reference in its entirety unless expressly excluded or otherwise limited. The citation of any document is not an admission that it is prior art with respect to any invention disclosed or claimed herein or that it alone, or in any combination with any other reference or references, teaches, suggests or discloses any such invention. Further, to the extent that any meaning or definition of a term in this document conflicts with any meaning or definition of the same term in a document incorporated by reference, the meaning or definition assigned to that term in this document shall govern.
While particular embodiments of the present invention have been illustrated and described, it would be obvious to those skilled in the art that various other changes and modifications can be made without departing from the spirit and scope of the invention. It is therefore intended to cover in the appended claims all such changes and modifications that are within the scope of this invention.
This application claims the benefit of U.S. Provisional Application No. 61/010,112 filed 4 Jan. 2008; and U.S. Provisional Application No. 61/114,584 filed 14 Nov. 2008.
Number | Date | Country | |
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61010112 | Jan 2008 | US | |
61114584 | Nov 2008 | US |