WO2007144855A1 - Detergent compositions - Google Patents
Detergent compositions Download PDFInfo
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- WO2007144855A1 WO2007144855A1 PCT/IB2007/052308 IB2007052308W WO2007144855A1 WO 2007144855 A1 WO2007144855 A1 WO 2007144855A1 IB 2007052308 W IB2007052308 W IB 2007052308W WO 2007144855 A1 WO2007144855 A1 WO 2007144855A1
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/38—Products with no well-defined composition, e.g. natural products
- C11D3/386—Preparations containing enzymes, e.g. protease or amylase
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- 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
- C11D3/22—Carbohydrates or derivatives thereof
- C11D3/222—Natural or synthetic polysaccharides, e.g. cellulose, starch, gum, alginic acid or cyclodextrin
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/38—Products with no well-defined composition, e.g. natural products
- C11D3/386—Preparations containing enzymes, e.g. protease or amylase
- C11D3/38645—Preparations containing enzymes, e.g. protease or amylase containing cellulase
Definitions
- This invention relates to cleaning compositions comprising cellulose derivatives.
- the invention also relates to detergent compositions comprising cellulose enzyme, such as bacterial alkaline enzyme exhibiting endo-beta-l,4-glucanase activity (E.C. 3.2.1.4).
- cellulose enzyme such as bacterial alkaline enzyme exhibiting endo-beta-l,4-glucanase activity (E.C. 3.2.1.4).
- the invention also relates to processes for making and using such products.
- Cellulase enzymes have been used in detergent compositions for many years now for their known benefits of depilling, softness and colour care.
- the use of most of cellulases has been limited because of the negative impact that cellulase may have on the tensile strength of the fabrics' fibers by hydrolysing crystalline cellulose.
- cellulases with a high specificity towards amorphous cellulose have been developed to exploit the cleaning potential of cellulases while avoiding the negative tensile strength loss.
- alkaline endo-glucanases have been developed to suit better the use in alkaline detergent conditions.
- Novozymes in WO02/099091 discloses a novel enzyme exhibiting endo-beta- glucanase activity (EC 3.2.1.4) endogenous to the strain Bacillus sp., DSM 12648; for use in detergent and textile applications.
- Novozymes further describes in WO04/053039 detergent compositions comprising an anti-redeposition endo-glucanase and its combination with certain cellulases having increased stability towards anionic surfactant and/or further specific enzymes.
- Kao's EP 265 832 describes novel alkaline cellulase K, CMCase I and CMCase II obtained by isolation from a culture product of Bacillus sp KSM-635.
- Kao further describes in EP 1 350 843, alkaline cellulase which acts favourably in an alkaline environment and can be mass produced readily because of having high secretion capacity or having enhanced specific activity.
- Anionically modified cellulose derivatives such as carboxymethyl cellulose (CMC) are established anti-redeposition polymers in detergent compositions.
- CMC carboxymethyl cellulose
- the combination of celluloses with CMC has been disclosed, for example in GB-A-2095275.
- the present inventors have found that the combination of a specific alkaline bacterial cellulose and specific modified celluloses leads to a significant improvement in cotton stain repellency.
- the modified cellulose derivatives deposit on cotton items and are acted upon by the bacterial alkaline cellulose so as to seal pores in the fibres of the laundered fabric surface. This results in a fabric surface which is less likely to form strong associations with particulate soils. There is therefore an improvement in the appearance of the laundered fabric and improved cleaning.
- the present invention relates to a composition
- a composition comprising a modified cellulose derivative and a cellulose enzyme, characterised in that the cellulose enzyme is a bacterial alkaline enzyme exhibiting endo-beta 1,4-glucanase activity (E.C.3.2.1.4) and the weight ratio of the modified cellulose component to the active cellulose enzyme protein is from 1:1 to 10000:1.
- the compositions of the invention typically do not contain 0.7 to 0.9 wt % sodium nonanoyloxybenzene sulphonate.
- the compositions of the invention typically do not contain 10 wt % sodium perborate monohydrate.
- the compositions of the invention typically do contain less than 8 % by weight and/or greater than 8.5 % by weight sodium sulphate (anhydrous), more specifically do not contain 8.0 to 8.3 wt% sodium sulphate.
- the present invention also includes a composition comprising a modified cellulose derivative or mixtures thereof and a cellulase enzyme characterised in that the weight ratio of the modified cellulose derivative to the active cellulase enzyme protein is from 1:1 to 10000: 1 and wherein the composition does not contain 0.7 to 0.9 % by weight of the total composition, of sodium nonanoyl oxybenzene sulfonate, and does not contain 10 % by weight based on the total composition, of sodium perborate monohydrate, the enzyme producing reducing ends levels of greater than 5mM in the Enzyme Test defined below.
- the inventors have found that the effectiveness of the endo-beta-(l,4)-glucanase / modified cellulose derivative combination is driven by short oligosaccharide products formed on hydrolysis of the polymer.
- the present inventors have found that the most effective combinations involve the use of modified cellulose derivative as described herein and an endo- beta-(l,4)-glucanase which provides effective hydrolysis of CMC polymer down to small oligosaccharides as measured using reducing ends analysis as follows, adapted from J. Karlsson et al., Biopolymers, 2002, v63, pp. 32-40
- CMC 25OkDa weight average molecular mass, DS 0.7, supplied by Aldrich, Stenheim, Germany
- 10g/L in 5OmM sodium acetate pH 5.0 was hydrolysed with an excess of enzyme, 2betaM, for a prolonged hydrolysis time, 72hours.
- the hydrolysates were then cooled to +4°C before carrying out reducing ends analysis using the dinitrosalicyclic acid reagent, according to the protocol described in M. Bailey et al, Enzyme Microb. Technol.,1981, v3, pp 153-157, with glucose being used for the standard curve.
- the endo-beta-(l,4)-glucanase enzymes required for the present invention produce reducing ends levels of greater than 5mM in this test, which correlates to -10% reducing ends.
- Preferred enzymes produce reducing end levels of greater than 10%, preferably greater than 12% or even greater than 15%, using the Enzyme Test.
- SEQ ID NO: 1 shows the amino acid sequence of an endoglucanase from Bacillus sp. AA349
- SEQ ID NO: 2 shows the amino acid sequence of an endoglucanase from Bacillus sp KSM-S237
- cleaning composition includes, unless otherwise indicated, granular or powder-form all-purpose or “heavy-duty” washing agents, especially laundry detergents; liquid, gel or paste-form all-purpose washing agents, especially the so-called heavy-duty liquid types; liquid fine-fabric detergents; as well as cleaning auxiliaries such as bleach additives and "stain-stick” or pre-treat types.
- modified cellulose derivative comprises polymers comprising a cellulose backbone wherein the cellulose is substituted with at least one substituent or modifying group.
- a monomer of cellulose is shown below.
- Rl, R2 and R3 show the positions in the cellulose monomer available for substitution.
- these groups comprise a hydrogen atom.
- the modified cellulose derivative required according to the present invention comprise a substituent at one or more of these positions in the polymer.
- the modifying groups will be non-ionic or anionic groups, producing nonionically or anionically modified cellulose, respectively.
- the modified cellulose derivative may be provided by other beta-l,4-linked polysaccharides such as xyloglucan (e.g. derived from Tamarind seed gum), glucomannan (e.g. Konjac glucomannan), galactomannan (e.g.
- an alpha- 1,4-linked polysaccharide may also be present.
- the natural polysaccharides, whether beta- 1,4 or alpha-1,4, can be modified with amines (primary, secondary, tertiary), amides, esters, ethers, urethanes, alcohols, carboxylic acids, tosylates, sulfonates, sulfates, nitrates, phosphates and mixtures thereof.
- Suitable derivatives are given in WO 06/117071 (Unilever), such as carboxymethyl Locust Bean gum and Locust Bean gum ethyl sulfonate.
- Preferred are anionically modified cellulose derivatives such as carboxymethyl cellulose.
- compositions of the present invention typically may contain from 0.00002% to 0.15%, from 0.00005% to 0.12%, or even from 0.0002% to 0.02% or even 0.005% to 0.025% by weight of pure enzyme, of one or more endoglucanase(s).
- the balance of any aspects of the aforementioned cleaning compositions is made up of cellulose derivative and one or more adjunct materials.
- the endoglucanase to be incorporated into the detergent composition of the present invention is one or more bacterial alkaline enzyme(s) exhibiting endo-beta-l,4-glucanase activity (E.C.
- alkaline endoglucanase shall mean an endoglucanase having an optimum pH above 7 and retaining greater than 70% of its optimal activity at pH10.
- the endoglucanase is a bacterial polypeptide endogenous to a member of the genus Bacillus.
- the alkaline enzyme exhibiting endo-beta-l,4-glucanase activity is a polypeptide containing (i) at least one family 17 carbohydrate binding module (Family 17 CBM) and/or (ii) at least one family 28 carbohydrate binding module (Family 28 CBM).
- Family 17 CBM Family 17 carbohydrate binding module
- Family 28 CBM Family 28 carbohydrate binding module
- said enzyme comprises a polypeptide (or variant thereof) endogenous to one of the following Bacillus species:
- Suitable endoglucanases for the compositions of the present invention are: 1) An enzyme exhibiting endo-beta-l,4-glucanase activity (E.C. 3.2.1.4), which has a sequence of at least 90%, preferably 94%, more preferably 97% and even more preferably 99%, 100% identity to the amino acid sequence of position 1 to position 773 of SEQ ID NO:1 (Corresponding to SEQ ID NO:2 in WO02/099091); or a fragment thereof that has endo-beta- 1,4-glucanase activity, when identity is determined by GAP provided in the GCG program using a GAP creation penalty of 3.0 and GAP extension penalty of 0.1.
- alkaline endoglucanase enzymes described in EP 1 350 843A published by Kao corporation on October 8, 2003._ Please refer to the detailed description [0011] to [0039] and examples 1 to 4 [0067] to [0077] for a detailed description of the enzymes and its production.
- the alkaline cellulase variants are obtained by substituting the amino acid residue of a cellulase having an amino acid sequence exhibiting at least 90%, preferably 95%, more preferably 98% and even 100% identity with the amino acid sequence represented by SEQ. ID NO:2 (Corresponding to SEQ.
- alkaline cellulase having the amino acid sequence represented by SEQ. ID NO:2 examples include Egl-237 [derived from Bacillus sp. strain KSM-S237 (FERM BP-7875), Hakamada, et al., Biosci. Biotechnol. Biochem., 64, 2281-2289, 2000].
- alkaline cellulase derived from Bacillus sp. strain 1139 (EgI-1139) (Fukumori, et al., J. Gen. Microbiol., 132, 2329-2335) (91.4% homology)
- alkaline cellulases derived from Bacillus sp. strain KSM-64 (EgI -64) (Sumitomo, et al., Biosci. Biotechnol. Biochem., 56, 872-877, 1992) (homology: 91.9%)
- cellulase derived from Bacillus sp. strain KSM-N131 (EgI- N131b) (Japanese Patent Application No. 2000-47237) (homology: 95.0%).
- the amino acid is preferably substituted by: glutamine, alanine, proline or methionine, especially glutamine is preferred at position (a), asparagine or arginine, especially asparagine is preferred at position (b), proline is preferred at position (c), histidine is preferred at position (d), alanine, threonine or tyrosine, especially alanine is preferred at position (e), histidine, methionine, valine, threonine or alanine, especially histidine is preferred at position (f), isoleucine, leucine, serine or valine, especially isoleucine is preferred at position (g), alanine, phenylalanine, valine, serine, aspartic acid, glutamic acid, leucine, isoleucine, tyrosine, threonine, methionine or glycine, especially alanine, phenylalanine or serine is preferred at position (h), isole
- amino acid residue at a position corresponding thereto can be identified by comparing amino acid sequences by using known algorithm, for example, that of Lipman- Pearson's method, and giving a maximum similarity score to the multiple regions of similarity in the amino acid sequence of each alkaline cellulase.
- the position of the homologous amino acid residue in the sequence of each cellulase can be determined, irrespective of insertion or depletion existing in the amino acid sequence, by aligning the amino acid sequence of the cellulase in such manner (Fig. 1 of EP 1 350 843). It is presumed that the homologous position exists at the three- dimensionally same position and it brings about similar effects with regard to a specific function of the target cellulase.
- alkaline cellulase having an amino acid sequence exhibiting at least 90% homology with SEQ. ID NO:2
- alkaline cellulase K described in EP 265 832A published by Kao on May 4, 1988. Please refer to the description page 4, line 35 to page 12, line 22 and examples 1 and 2 on page 19 for a detailed description of the enzyme and its production.
- the alkaline cellulase K has the following physical and chemical properties:
- Such enzyme is obtained by isolation from a culture product of Bacillus sp KSM- 635.
- Cellulase K is commercially available by the Kao Corporation: e.g. the cellulase preparation Eg- X known as KAC® being a mixture of E-H and E-L both from Bacillus sp. KSM-635 bacterium. Cellulases E-H and E-L have been described in S. Ito, Extremophiles, 1997, vl, 61-66 and in S. Ito et al, Agric Biol Chem, 1989, v53, 1275-1278.
- KAC® cellulase preparation Eg- X known as KAC® being a mixture of E-H and E-L both from Bacillus sp. KSM-635 bacterium. Cellulases E-H and E-L have been described in S. Ito, Extremophiles, 1997, vl, 61-66 and in S. Ito et al, Agric Biol Chem, 1989, v53, 1275-1278.
- Alkaline Cellulase E-III from KSM 522, FERM BP 1512.
- Alkaline Cellulase K-344 from KSM 344, FERM BP 1506, and Alkaline Cellulase K-425 from KSM 425, FERM BP 1505.
- JP2005287441A published by Kao on the October 20 th , 2005, are also suitable for the purpose of the present invention. Please refer to the description page 4, line 39 to page 10, line 14 for a detailed description of the enzymes and its production. Examples of such alkaline endoglucanases are:
- the modified cellulose derivative required in the present invention comprises a polymer comprising a cellulose backbone.
- the cellulose may be anionically or nonionically modified, preferably anionically modified.
- a monomer of cellulose is shown below.
- Rl, R2 and R3 show the positions in the cellulose monomer available for substitution.
- these groups comprise a hydrogen atom.
- the modified cellulose derivative useful herein comprises substituents at one or more of these positions.
- anionic substitution one or more of these positions in the polymer are substituted with an anionic group for example, one of the following anionic groups, in its acid or salt form, preferably sodium (given here) or potassium salt form.
- L is Ci-6 alkyl, more preferably Ci -4 alkyl
- the anionically modified cellulose derivative may also comprise non-ionic substituent groups in which one or more of positions Rl, R2 and R3 may be substituted with nonionic groups, for example,
- a and B are Ci_ 3 o alkyl
- Non-limiting examples of suitable modified cellulose derivatives are the 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 methyl cellulose, carboxymethyl
- the modified cellulose derivative may be provided by a nonionically modified cellulose derivative instead of or in addition to the anionically modified cellulose polymer.
- nonionically modified cellulose polymers include methyl cellulose, ethyl cellulose, propyl cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose, methyl hydroxyethyl cellulose, ethyl hydroxyethyl cellulose, dodecyl hydroxyethyl cellulose, ethyl hydroxypropyl cellulose, cellulose acetate, methyl hydroxypropyl cellulose, methyl ethyl hydroxyethyl cellulose, butyl glycidyl ether-hydroxyethyl cellulose, and lauryl glycidyl ether-hydroxyethyl cellulose
- modified cellulose derivatives have a weight average molecular mass of at least 20 000 or at least 50 000 or even at least 100 000 or even at least 150 000 kDaltons.
- the weight average molecular mass of the modified cellulose derivative will generally be no greater than 500 000, or no greater than 300 000 or no greater than 250 00OkDa.
- Preferred degrees of substitution (DS) are from 0.3, or 0.4, or 0.45 up to for example 0.7 or even 0.8 or even 0.9.
- modified methyl celluloses such as CMC, with such molecular weights and/or degrees of substitution and/or levels as described herein.
- the level of modified cellulose derivative in the detergent compositions of the invention is typically from at least 0.005 or 0.01 wt% or 0.02 or at least 0.05 wt% or even at least 0.1 wt% based on the total weight of detergent composition. Typically, the levels will be no greater than 5% by weight or even no greater than 2% by weight or even no greater than 1.5% by weight of the detergent composition. In a particularly preferred embodiment of the invention the weight ratio of modified cellulose derivative to active cellulase enzyme protein is from 1:1 to 10000:1, preferably 20: 1 to 1000:1, most preferably 30:1 to 800:1.
- Cellulose derivatives such as methyl celluloses have been incorporated into detergent compositions for many years. They deposit onto cotton fabric surfaces to form a negatively charged soil-repellant layer, which repels soils reducing deposition onto a fabric surface.
- the present inventors have found that cellulose derivatives having a much lower molecular weight than is traditionally used can provide further surprising benefits as they act as anti-redeposition aids by suspending soils in the wash liquor.
- These cellulose derivatives may be formed in situ by reaction of specific cellulose agent pre-cursors.
- the modified cellulose derivative may be added as a dry particulate component comprising for example greater than 50 % or even greater than 60 % or 70 % or 80% by weight, up to 100 % by weight modified cellulose derivative.
- the modified cellulose derivative may be incorporated into the detergent compositions of the invention as part of a processed particle formed by a conventional detergent particle-making process, such as spray-drying, agglomeration or extrusion.
- the amount of modified cellulose derivative in such particle will be at least 0.1 % or 0.5 or 1 % by weight and is likely to be less than 70% and more likely, less than 60 % or 50 %, 40%, 30% or even less than 20 % or 10% by weight of the processed particle.
- Introducing the modified cellulose derivative as part of a processed detergent particle may be particularly preferred especially for detergent compositions containing low levels of phosphate and/or zeolite builders; for example less than 15% by weight of the total detergent composition or even less than 14% or 12 % or 10 % or 8 % down to 0 % by weight phosphate and/or zeolite builders. This may be preferred as it may promote uniform distribution of the cellulose throughtout the wash liquor on addition of the detergent composition to water, by helping solubility of the cellulose derivative.
- the processed detergent particle may comprise any other conventional detergent ingredients or components thereof such as any of the adjunct materials described below or, for example as described in JP 2002 265999 (Kao) or in any of the processes described below under the sub-heading "Processes of Making Compositions".
- such particles may comprise at least 1, or at least 5 or 10 % by weight up to 15 or 20 or 30 % by weight polymeric polycarboxylate polymer such as acrylic acid and/or maleic acid- based homo- or co- polymers (e.g. Sokalan polymers from BASF), based on the weight of the processed particle.
- the processed particles may comprise anionic, non-ionic, cationic, zwitterionic and/or amphoteric surfactants or mixtures thereof. Amounts may be form 1 to 70 % by weight, or 2 to 60% or from5 to 850 % by weight based on the total weight of the processed particle.
- processed particles may comprise non-ionic surfactant optionally in combination with anionic and/or cationic surfactants. Suitable surfactants are described in the "Surfactants" section of the description.
- suitable non-ionic surfactants include alkyl alkoxylated surfactant, e.g ethoxylated surfactants having a degree of alkoxylation from 3 to 20 or even higher such as 20 to 50.
- Processed particles may comprise sodium silicate (especially 1 to 2 ratio) in amounts from 1 to 30 % by weight or 2 to 25 % by weight or from 5 to 20 % by weight.
- compositions according to the invention comprise polymeric polycarboxylate polymers and in such an amount that the weight ratio of polymeric polycarboxylate to modified cellulose derivative is at least 2:1, more preferably at least 2.5:1 and most preferably at least 3:1 or even 4: 1 or 5: 1. Such ratios may also be preferred in the processed particles discussed above, where polymeric polycarboxylate is present.
- the bulk density of the composition of the invention and/or more specifically the modified cellulose derivative-containing particles is typically at least 450 g/1 or at least 550g/l or 650g/l or at least 700g/l, up to 1500g/l.
- Bulk density is measured by means of a simple funnel and cup device consisting of a conical funnel mounted rigidly on a base and provided with a flap valve at its lower extremity to allow the contents of the funnel to be emptied into an axially aligned cylindrical cup disposed below the funnel.
- the funnel is 130 mm high and has internal diameters of 130 mm and 40 mm at its respective upper and lower extremities. It is mounted so that the lower extremity is 140 mm above the upper surface of the base.
- the cup has an overall height of 90 mm, an internal height of 87 mm and an internal diameter of 84 mm. Its nominal volume is 500 ml.
- the funnel is filled with powder by hand pouring, the flap valve is opened and powder is allowed to overfill the cup.
- the filled cup is removed from the frame and excess powder is removed from the cup by passing a straight edged implement eg. a knife, across its upper edge.
- the filled cup is then weighed and the value obtained for the weight of powder doubled to provide a bulk density of g/litre. Replicate measurements are made and an average of three results provides the bulk density.
- the present inventors have further provided detergent compositions which provide soil suspension properties.
- a detergent composition comprising oligosaccharides having a weight average molecular mass of less than 20 000 kDa, such oligosaccharide being obtainable by reaction of an enzyme as defined above with an anionically modified cellulose having an average molecular weight from 30 000 to 500 000 kDa.
- an aqueous wash liquor comprising a detergent composition wherein the oligosaccharide is comprised in amounts from 0.5ppm to 1000 ppm, or from 0.8 to 1500 ppm or from 1.0 to lOOOppm.
- oligosaccharide having a weight average molecular mass of less than 20 000 kDa, such oligosaccharide being obtainable by reaction of an enzyme as described above, with an anionically or nonionically, preferably anionically modified cellulose derivative having a weight average molecular mass from 30 000 to 500 000 kDa, for preparation of a detergent composition, for soil suspension.
- a detergent composition comprising an enzyme as described above and at least 2 wt%, or even at least 5 wt%, 10 wt%, 15, 20 wt% or higher for example up to 50 wt% or 40 wt% or 30 wt% or 25 wt% , of a phosphate builder salt, at least 25, or 30 or 40 or 45 or 50 or even 55 wt% up to 100 wt% or 90 wt% or 80 wt% of said phosphate builder comprising pyrophosphate builder.
- This pyrophosphate builder may be formed in situ by spray drying a composition comprising sodium or other salt of tri polyphosphate or acid form in a spray drying process in which the temperature and/or air flow and/or other chemical constituents in the spray drying slurry are controlled to provide the desired reaction of the tripolyphosphate to pyrophosphate salt.
- the process may be operated for example as described in WO03/091378 or US4310431.
- adjuncts illustrated hereinafter are suitable for use in the instant compositions and may be desirably incorporated in certain embodiments of the invention, for example to assist or enhance cleaning performance, for treatment of the substrate to be cleaned, or to modify the aesthetics of the cleaning composition as is the case with perfumes, colorants, dyes or the like.
- the precise nature of these additional components, and levels of incorporation thereof, will depend on the physical form of the composition and the nature of the cleaning operation for which it is to be used.
- Suitable adjunct materials include, but are not limited to, surfactants, builders, chelating agents, dye transfer inhibiting agents, dispersants, additional enzymes, and enzyme stabilizers, catalytic materials, bleach activators, hydrogen peroxide, sources of hydrogen peroxide, preformed peracids, polymeric dispersing agents, clay soil removal/anti-redeposition agents, brighteners, suds suppressors, dyes, perfumes, structure elasticizing agents, fabric softeners, carriers, hydrotropes, processing aids, solvents and/or pigments.
- suitable examples of such other adjuncts and levels of use are found in U.S. Patent Nos. 5,576,282, 6,306,812 Bl and 6,326,348 Bl that are incorporated by reference. When one or more adjuncts are present, such one or more adjuncts may be present as detailed below:
- the cleaning compositions of the present invention may comprise one or more bleaching agents.
- Suitable bleaching agents other than bleaching catalysts include other photobleaches, bleach activators, hydrogen peroxide, sources of hydrogen peroxide, pre-formed peracids and mixtures thereof.
- the compositions of the present invention may comprise from about 0.1% to about 50% or even from about 0.1% to about 25% bleaching agent by weight of the subject cleaning composition.
- suitable bleaching agents include:
- Vitamin K3 other photobleaches for example Vitamin K3;
- Suitable preformed peracids include, but are not limited to, compounds selected from the group consisting of percarboxylic acids and salts, percarbonic acids and salts, perimidic acids and salts, peroxymonosulfuric acids and salts, for example, Oxone ®, and mixtures thereof.
- inorganic perhydrate salts including alkali metal salts such as sodium salts of perborate (usually mono- or tetra-hydrate), percarbonate, persulphate, perphosphate, persilicate salts and mixtures thereof.
- the inorganic perhydrate salts are selected from the group consisting of sodium salts of perborate, percarbonate and mixtures thereof.
- inorganic perhydrate salts are typically present in amounts of from 0.05 to 40 wt%, or 1 to 30 wt% of the overall composition and are typically incorporated into such compositions as a crystalline solid that may be coated. Suitable coatings include, inorganic salts such as alkali metal silicate, carbonate or borate salts or mixtures thereof, or organic materials such as water-soluble or dispersible polymers, waxes, oils or fatty soaps; and
- suitable leaving groups are benzoic acid and derivatives thereof - especially benzene sulphonate.
- Suitable bleach activators include dodecanoyl oxybenzene sulphonate, decanoyl oxybenzene sulphonate, decanoyl oxybenzoic acid or salts thereof, 3,5,5-trimethyl hexanoyloxybenzene sulphonate, tetraacetyl ethylene diamine (TAED) and nonanoyloxybenzene sulphonate (NOBS).
- TAED tetraacetyl ethylene diamine
- NOBS nonanoyloxybenzene sulphonate
- Suitable bleach activators are also disclosed in WO 98/17767. While any suitable bleach activator may be employed, in one aspect of the invention the subject cleaning composition may comprise NOBS, TAED or mixtures thereof.
- the peracid and/or bleach activator is generally present in the composition in an amount of from about 0.1 to about 60 wt%, from about 0.5 to about 40 wt % or even from about 0.6 to about 10 wt% based on the composition.
- One or more hydrophobic peracids or precursors thereof may be used in combination with one or more hydrophilic peracid or precursor thereof.
- the amounts of hydrogen peroxide source and peracid or bleach activator may be selected such that the molar ratio of available oxygen (from the peroxide source) to peracid is from 1:1 to 35:1, or even 2:1 to 10:1.
- the cleaning compositions according to the present invention may comprise a surfactant or surfactant system wherein the surfactant can be selected from nonionic surfactants, anionic surfactants, cationic surfactants, ampholytic surfactants, zwitterionic surfactants, semi- polar nonionic surfactants and mixtures thereof. When present, surfactant is typically present at a level of from about 0.1% to about 60%, from about 1% to about 50% or even from about 5% to about 40% by weight of the subject composition.
- the cleaning compositions of the present invention may comprise one or more detergent builders or builder systems.
- the subject composition will typically comprise at least about 1%, from about 5% to about 60% or even from about 10% to about 40% builder by weight of the subject composition.
- 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 and polycarboxylate compounds, ether hydroxypolycarboxylates, copolymers of maleic anhydride with ethylene or vinyl methyl ether, 1, 3, 5-trihydroxy benzene- 2, 4, 6-trisulphonic acid, and carboxymethyloxysuccinic 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, citric acid, oxydisuccinic acid, polymaleic acid, benzene 1,3,5-tricarboxylic acid, carboxymethyloxysuccinic acid, and soluble salts thereof.
- the cleaning compositions herein may contain a chelating agent.
- Suitable chelating agents include copper, iron and/or manganese chelating agents and mixtures thereof.
- the subject composition may comprise from about 0.005% to about 15% or even from about 3.0% to about 10% chelating agent by weight of the subject composition.
- the cleaning 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.
- the dye transfer inhibiting agents may be present at levels from about 0.0001% to about 10%, from about 0.01% to about 5% or even from about 0.1% to about 3% by weight of the composition.
- Fluorescent whitening agent - The cleaning compositions of the present invention will preferably also contain additional components that may tint articles being cleaned, such as fluorescent whitening agent.
- Any fluorescent whitening agent suitable for use in a laundry detergent composition may be used in the composition of the present invention.
- the most commonly used fluorescent whitening agents are those belonging to the classes of diaminostilbene-sulphonic acid derivatives, diarylpyrazoline derivatives and bisphenyl-distyryl derivatives. Examples of the diaminostilbene-sulphonic acid derivative type of fluorescent whitening agents include the sodium salts of:
- Tinopal® DMS is the disodium salt of 4,4'-bis-(2- morpholino-4 anilino-s-triazin-6-ylamino) stilbene disulphonate.
- Tinopal® CBS is the disodium salt of 2,2'-bis-(phenyl-styryl) disulphonate.
- fluorescent whitening agents of the structure:
- Rl and R2 together with the nitrogen atom linking them, form an unsubstituted or Cl- C4 alkyl-substituted morpholino, piperidine or pyrrolidine ring, preferably a morpholino ring (commercially available as Parawhite KX, supplied by Paramount Minerals and Chemicals, Mumbai, India)
- fluorescers suitable for use in the invention include the 1-3-diaryl pyrazolines and the 7- alkylaminocoumarins .
- Suitable fluorescent brightener levels include lower levels of from about 0.01, from 0.05, from about 0.1 or even from about 0.2 wt % to upper levels of 0.5 or even 0.75 wt %.
- Fabric hueing agents- dyes or pigments which when formulated in detergent compositions can deposit onto a fabric when said fabric is contacted with a wash liquor comprising said detergent compositions thus altering the tint of said fabric through absorption of visible light.
- Fluorescent whitening agents emit at least some visible light.
- fabric hueing agents alter the tint of a surface as they absorb at least a portion of the visible light spectrum.
- Suitable fabric hueing agents include dyes and dye-clay conjugates, and may also include pigments.
- Suitable dyes include small molecule dyes and polymeric dyes.
- Suitable small molecule dyes include small molecule dyes selected from the group consisting of dyes falling into the Colour Index (CI.) classifications of Direct Blue, Direct Red, Direct Violet, Acid Blue, Acid Red, Acid Violet, Basic Blue, Basic Violet and Basic Red, or mixtures thereof, for example as described in WO2005/03274, WO2005/03275, WO2005/03276 and co-pending European application no o6116780.5 filed 7 July 2006.
- CI. Colour Index
- compositions of the present invention can also contain dispersants.
- Suitable water-soluble organic materials include the homo- or co-polymeric acids or their salts, in which the polycarboxylic acid comprises at least two carboxyl radicals separated from each other by not more than two carbon atoms.
- the cleaning compositions can comprise one or more other enzymes which provide cleaning performance and/or fabric care benefits.
- suitable enzymes include, but are not limited to, hemicellulases, peroxidases, proteases, other cellulases, xylanases, lipases, phospholipases, esterases, cutinases, pectinases, mannanases, pectate lyases, keratinases, reductases, oxidases, phenoloxidases, lipoxygenases, ligninases, pullulanases, tannases, pentosanases, malanases, ⁇ -glucanases, arabinosidases, hyaluronidase, chondroitinase, laccase, and amylases, or mixtures thereof.
- compositions of the present invention will further comprise a lipase, for further improved cleaning and whitening performance.
- a lipase for further improved cleaning and whitening performance.
- a typical combination is an enzyme cocktail that may comprise, for example, a protease and lipase in conjunction with amylase. 9?
- the aforementioned additional enzymes may be present at levels from about 0.00001% to about 2%, from about 0.0001% to about 1% or even from about 0.001% to about 0.5% enzyme protein by weight of the composition.
- Enzyme Stabilizers - Enzymes for use in 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.
- a reversible protease inhibitor such as a boron compound, can be added to further improve stability.
- Catalytic Metal Complexes - Applicants' cleaning 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(methylenephosphonic acid) and water- soluble salts thereof.
- Such catalysts are disclosed in U.S. 4,430,243.
- compositions herein can be catalyzed by means of a manganese compound.
- 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. 5,576,282.
- Cobalt bleach catalysts useful herein are known, and are described, for example, in U.S. 5,597,936; U.S. 5,595,967. Such cobalt catalysts are readily prepared by known procedures, such as taught for example in U.S. 5,597,936, and U.S. 5,595,967.
- compositions herein may also suitably include a transition metal complex of ligands such as bispidones (WO 05/042532 Al) and/or macropolycyclic rigid ligands - abbreviated as "MRLs".
- ligands such as bispidones (WO 05/042532 Al) and/or macropolycyclic rigid ligands - abbreviated as "MRLs”.
- MRLs macropolycyclic rigid ligands
- Suitable transition-metals in the instant transition-metal bleach catalyst include, for example, manganese, iron and chromium.
- Suitable MRLs include 5,12-diethyl-l,5,8,12- tetraazabicyclo[6.6.2]hexadecane.
- Suitable transition metal MRLs are readily prepared by known procedures, such as taught for example in WO 00/32601, and U.S. 6,225,464.
- Solvents - Suitable solvents include water and other solvents such as lipophilic fluids.
- suitable lipophilic fluids include siloxanes, other silicones, hydrocarbons, glycol ethers, glycerine derivatives such as glycerine ethers, perfluorinated amines, perfluorinated and hydrofluoroether solvents, low-volatility nonfluorinated organic solvents, diol solvents, other environmentally-friendly solvents and mixtures thereof.
- Softening system the compositions of the invention may comprise a softening agent such as clay and optionally also with flocculants and enzymes; optionally for softening through the wash.
- a softening agent such as clay and optionally also with flocculants and enzymes; optionally for softening through the wash.
- 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 Applicants' examples and in U.S. 4,990,280; U.S. 20030087791 Al; U.S. 20030087790A1; U.S. 20050003983 Al; U.S. 20040048764A1; U.S. 4,762,636; U.S. 6,291,412; U.S. 20050227891A1; EP 1070115A2; U.S. 5,879,584; U.S. 5,691,297; U.S. 5,574,005; U.S. 5,569,645; U.S. 5,565,422; U.S. 5,516,448; U.S. 5,489,392; U.S. 5,486,303 all of which are incorporated herein by reference.
- the present invention includes a method for laundering a fabric.
- the method comprises the steps of contacting a fabric to be laundered with a said cleaning laundry solution comprising at least one embodiment of Applicants' cleaning composition, cleaning additive or mixture thereof.
- the fabric may comprise most any fabric capable of being laundered in normal consumer use conditions.
- the solution preferably has a pH of from about 8 to about 10.5.
- the compositions may be employed at concentrations of from about 500 ppm to about 15,000 ppm in solution.
- the water temperatures typically range from about 5 0 C to about 90 0 C.
- the water to fabric ratio is typically from about 1:1 to about 30: 1.
- Granular laundry detergent compositions designed for handwashing or top-loading washing machines.
- Granular laundry detergent compositions designed for front-loading automatic washing machines.
- compositions is used to launder fabrics at a concentration of 7000 to 10000 ppm in water, 20-90 0 C, and a 5:1 wate ⁇ cloth ratio.
- the typical pH is about 10.
- Linear alkylbenzenesulfonate having an average aliphatic carbon chain length Cn-Ci 2 supplied by Stepan, Northfield, Illinois, USA
- Ci 2-I4 Dimethylhydroxyethyl ammonium chloride supplied by Clariant GmbH, Sulzbach,
- AE3S is C 12 - 15 alkyl ethoxy (3) sulfate supplied by Stepan, Northfield, Illinois, USA
- AE7 is C 12 - 15 alcohol ethoxylate, with an average degree of ethoxylation of 7, supplied by
- Zeolite A was supplied by Industrial Zeolite (UK) Ltd, Grays, Essex, UK
- Polyacrylate MW 4500 is supplied by BASF, Ludwigshafen, Germany
- Fluorescent Brightener 1 is Tinopal® AMS
- Fluorescent Brightener 2 is Tinopal® CBS-X.
- Diethylenetriamine pentacetic acid was supplied by Dow Chemical, Midland, Michigan, USA
- NOBS sodium nonanoyloxybenzenesulfonate, supplied by Eastman, Batesville, Arkansas, USA
- TAED is tetraacetylethylenediamine, supplied under the Peractive® brand name by Clariant
- Soil release agent is Repel-o-tex® PF, supplied by Rhodia, Paris, France
- Acrylic Acid/Maleic Acid Copolymer is molecular weight 70,000 and acrylate:maleate ratio 70:30, supplied by BASF, Ludwigshafen, Germany
- HEDP Hydroxyethane di phosphonate
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Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
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MX2008016229A MX295029B (en) | 2006-06-16 | 2007-06-15 | Detergent compositions. |
CA2652774A CA2652774A1 (en) | 2006-06-16 | 2007-06-15 | Detergent compositions |
JP2009514977A JP2009539399A (en) | 2006-06-16 | 2007-06-15 | Detergent composition |
BRPI0713668-4A BRPI0713668A2 (en) | 2006-06-16 | 2007-06-15 | detergent compositions |
Applications Claiming Priority (12)
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EP06115574.3 | 2006-06-16 | ||
EP06115574A EP1882731A1 (en) | 2006-06-16 | 2006-06-16 | Detergent compositions |
US81915506P | 2006-07-07 | 2006-07-07 | |
EP06116780.5 | 2006-07-07 | ||
EP06116780A EP1876226B1 (en) | 2006-07-07 | 2006-07-07 | Detergent compositions |
EP06116782A EP1867707B1 (en) | 2006-06-16 | 2006-07-07 | Detergent compositions |
EP06116784.7A EP1876227B2 (en) | 2006-07-07 | 2006-07-07 | Detergent Compositions |
EP06116784.7 | 2006-07-07 | ||
EP06116782.1 | 2006-07-07 | ||
US60/819,155 | 2006-07-07 | ||
EP06124858.9A EP1867708B1 (en) | 2006-06-16 | 2006-11-27 | Detergent compositions |
EP06124858.9 | 2006-11-27 |
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WO2007144855A1 true WO2007144855A1 (en) | 2007-12-21 |
WO2007144855A8 WO2007144855A8 (en) | 2009-02-19 |
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JP (1) | JP2009539399A (en) |
AR (1) | AR061495A1 (en) |
BR (1) | BRPI0713668A2 (en) |
CA (1) | CA2652774A1 (en) |
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Also Published As
Publication number | Publication date |
---|---|
MX295029B (en) | 2012-01-20 |
MX2008016229A (en) | 2009-02-17 |
JP2009539399A (en) | 2009-11-19 |
CA2652774A1 (en) | 2007-12-21 |
EP1867708A1 (en) | 2007-12-19 |
PL1867708T3 (en) | 2017-10-31 |
BRPI0713668A2 (en) | 2012-10-23 |
EP1867708B1 (en) | 2017-05-03 |
AR061495A1 (en) | 2008-09-03 |
WO2007144855A8 (en) | 2009-02-19 |
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