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WO2024156449A1 - Composition de lavage de linge - Google Patents

Composition de lavage de linge Download PDF

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Publication number
WO2024156449A1
WO2024156449A1 PCT/EP2023/087218 EP2023087218W WO2024156449A1 WO 2024156449 A1 WO2024156449 A1 WO 2024156449A1 EP 2023087218 W EP2023087218 W EP 2023087218W WO 2024156449 A1 WO2024156449 A1 WO 2024156449A1
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WO
WIPO (PCT)
Prior art keywords
laundry
fabrics
alkyl
laundry composition
composition 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.)
Ceased
Application number
PCT/EP2023/087218
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English (en)
Inventor
Sarah Louise Hosking
Susanne Henning Rogers
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Unilever Global IP Ltd
Unilever IP Holdings BV
Conopco Inc
Original Assignee
Unilever Global IP Ltd
Unilever IP Holdings BV
Conopco Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Unilever Global IP Ltd, Unilever IP Holdings BV, Conopco Inc filed Critical Unilever Global IP Ltd
Priority to EP23838000.0A priority Critical patent/EP4655369A1/fr
Priority to CN202380091293.6A priority patent/CN120530185A/zh
Publication of WO2024156449A1 publication Critical patent/WO2024156449A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • C11D3/22—Carbohydrates or derivatives thereof
    • C11D3/222—Natural or synthetic polysaccharides, e.g. cellulose, starch, gum, alginic acid or cyclodextrin
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/0005—Other compounding ingredients characterised by their effect
    • C11D3/0036—Soil deposition preventing compositions; Antiredeposition agents
    • 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
    • C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
    • C11D7/22—Organic compounds
    • C11D7/26—Organic compounds containing oxygen
    • C11D7/268—Carbohydrates or derivatives 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
    • C11D2111/00—Cleaning compositions characterised by the objects to be cleaned; Cleaning compositions characterised by non-standard cleaning or washing processes
    • C11D2111/10—Objects to be cleaned
    • C11D2111/12—Soft surfaces, e.g. textile

Definitions

  • the present invention is concerned with improvements related to fabric cleaning in a laundry process.
  • Laundry processes are often carried out to remove soil, dirt and other stains from fabrics.
  • One or more laundry compositions are typically used as part of this process.
  • the exact nature of the process can be quite complex, as differences in stains, fabric composition I construction, laundry compositions and washing environments all have an impact on how successfully a given stain is removed.
  • Redeposition of stains is a problem if after successful removal of a stain from a fabric it is then not maintained in the wash liquor but is instead redeposited onto other areas of fabric being laundered simultaneously. Typically such unwanted redeposition manifests itself as a slight ‘greying’ or ‘dulling’ or the fabric.
  • pectins with a particular degree of methylation and molecular weight such a problem can be addressed.
  • a laundry composition comprising one or more pectins at a level of from 0.1 to 15wt%, more preferably 0.5 to 10wt% and most preferably 1 to 5wt%, wherein the pectins have a degree of methylation of 55% or greater and most preferably 60% or greater, wherein the laundry composition comprises pectins with a molecular weight of between 50kDa and 1000kDa, more preferably between 75kDa and 900kDa and most preferably between 100kDa and 800kDa.
  • the laundry composition comprises pectins with a galacturonic acid content of greater than 60wt%, more preferably greater than 65wt% more preferably greater than 70wt% and most preferably greater than 80wt%.
  • the laundry composition comprises pectins, wherein the pectin is sourced from apples, citrus peel, gooseberries, quince, pears, plums and sugar beet, more preferably from citrus peel, apple, sugar beet, or mixtures thereof and most preferably from citrus peel
  • the laundry composition comprises one or more surfactants selected from anionic, nonionic and/or amphoteric surfactants, wherein if present, then the anionic surfactant is present at a level of from 0.1 to 80 wt.%, preferably from 2 to 50 wt.%, more preferably from 3 to 30 wt.% and is preferably selected from linear alkyl benzenesulphonate, secondary alkane sulphonate, sodium laureth ether sulphate, sodium lauryl sulphate, sodium oleyl sulphate and sodium oleyl ether sulphate, methyl ester sulphonate, secondary alkyl sulphate (SALS), cardanol ether sulphate and a rhamnolipid; wherein if present, then the nonionic surfactant is present at a level of from 1 to 80 wt.%, preferably from 2 to 50 wt.%, more preferably from 3 to 30 wt.%
  • the laundry composition additionally comprises an enzyme, preferably comprising from 0.05 to 5 wt.%, more preferably from 0.1 to 4 wt.%, more preferably from 0.5 to 3 wt.% of an enzyme, wherein the enzyme is preferably selected from one or more of a protease, amylase, mannanase, lipase, pectate lyase, laccase, phosphodiesterase and mixtures thereof.
  • an enzyme preferably comprising from 0.05 to 5 wt.%, more preferably from 0.1 to 4 wt.%, more preferably from 0.5 to 3 wt.% of an enzyme, wherein the enzyme is preferably selected from one or more of a protease, amylase, mannanase, lipase, pectate lyase, laccase, phosphodiesterase and mixtures thereof.
  • the laundry composition comprises a rheology modifier, preferably comprising from 0.1 to 10 wt.% of a rheology modifier, wherein the rheology modifier is preferably selected from polyacrylate polymers, polycarboxylate polymers, hydrogenated castor oil derivatives, polysaccharides, microfibrous cellulose, polymeric gums, and mixtures thereof.
  • a rheology modifier preferably selected from polyacrylate polymers, polycarboxylate polymers, hydrogenated castor oil derivatives, polysaccharides, microfibrous cellulose, polymeric gums, and mixtures thereof.
  • the laundry composition comprises from 0.05 to 8 wt.%, preferably from 0.1 to 5 wt.%, more preferably from 0.5 to 2 wt.% of a sequestrant, preferably the sequestrant is selected from HEDP, DTPMP, EDTA, MGDA, GLDA or citric acid.
  • the laundry composition comprises a fragrance, preferably comprising from 0.001 and 2.0wt% of a fragrance, more preferably 0.01 and 1.5wt% and most preferably 0.1 and 1.0wt%.
  • the fragrance comprises greater than 50wt% biodegradable materials, more preferably greater than 60wt% biodegradable materials, more preferably greater than 70wt% biodegradable materials, more preferably greater than 80wt% biodegradable materials, more preferably greater than 90% biodegradable materials and most preferably the fragrance consists of 100wt% biodegradable materials.
  • the laundry composition is in the form of a liquid, solid, powder, pastille, bead or paste.
  • a method for the removal of soil from fabrics during a laundry process comprising laundering fabrics with a composition comprising pectins as defined in the first aspect of the invention.
  • a method is further provided for the minimisation of greying or dulling of fabrics when laundered in the presence of soiled garments, wherein the method comprises laundering fabrics with a composition comprising pectins as defined in the first aspect of the invention.
  • the laundry process is carried out in water of hardness degree of 20 French Hard units or greater.
  • the laundry process is carried out on a wash load comprising cotton fabrics.
  • Pectin is a common polysaccharide found in many plants in nature. Various sources of pectin are available, including apples, citrus peel, gooseberries, quince, pears and plums. Pectin consists predominantly of a-D galacturonic acid units, but also contains some amount of neutral sugars such as rhamnose, xylose, arabinose, galactose and glucose. The percentage of galacturonic acid units is therefore the amount of galacturonic acid groups present relative to the total amount of the pectin.
  • the galacturonic acid content of a sample can be determined by methods known in the art, such as for example the Saeman hydrolysis method (Englyst and Cummings (Analyst, 109(7), 937-942 (1984), Filisetti-Cozzi and Carpita (Analytical Biochemistry, 197, 157-162 (1991)).
  • Galacturonic acid typically has the following repeat unit structure:
  • the degree of esterification can be determined according to methods known in the art, such as the base titration method (Shultz, 1965) as proposed by the Food Chemical Codex (FCC (1981). 3rd ed., (1981) National Academy of Science, Washington, DC), quantification of methanol released during de-esterification using gas chromatography (GC) (Walter et al. (1983), Journal of Food Science, 48: 1006-10070), colorimetry (Hou et al.
  • carboxylic groups are typically methylated to varying degrees to provide pectin methyl esters.
  • the number fraction of carboxylic acid groups methylated is known as the degree of methylation.
  • the pectin used according to the invention has a degree of methylation of 55% or greater, more preferably 57.5% or greater and most preferably 60% or greater.
  • the pectin used according to the invention has a molecular weight of greater than 50kDa, more preferably greater than 60kDa, more preferably greater than 70kDa, more preferably greater than 80kDa, more preferably greater than 90kDa and most preferably greater than 100kDa.
  • Typical upper limits of pectin molecular are of the order of 1000kDa, more preferably 900kDa and most preferably 800kDa.
  • Preferred molecular weight ranges for use in the invention are between 50kDa and 1000kDa, more preferably between 75kDa and 900kDa and most preferably between 100kDa and 800kDa.
  • the Pectin molecular weight was determined using Triple Detection Size Exclusion Chromatography (TD-SEC).
  • the complete OMNISEC system consists of OMNISEC RESOLVE (chromatography module) and OMNISEC REVEAL (detectors module). Using multi-detector technologies, it combines refractive index, absorbance, light scattering and viscometer detectors to measure concentration, molecular weight and other parameters. The data are analysed using the OMNISEC software.
  • aqueous columns such as the A6000 and A7000 set of columns plus the corresponding guard columns are used.
  • routinely used eluents of choice are demineralised water containing 0.02wt% Na azide as the preservative or buffer solutions such as Na or Li nitrate (0.05-0.1 M), buffered to the appropriate pH range using NaOH or acetic acid.
  • Polysaccharides with hydrophobic functionality can be analysed using 10- 20% MeOH.
  • sample solutions are prepared at 0.5mg/ml and then filtered using 0.45pm Nylon filters prior to dispensing into sample vials.
  • the eluent is filtered using a 0.2 pm Nylon filter.
  • the flow rate throughout all runs is typically at 1ml/min; the detector and column oven temperatures are set to 40oC.
  • an eluent system of deminerliased water containing 0.02wt% sodium azide was used.
  • the detector calibration is carried out using a narrow molecular weight standard to calculate the detector offsets, the detector constants for all detectors and the band broadening and tailing corrections.
  • the calibration is performed using a standard of known concentration, molecular weight, dispersity and intrinsic viscosity; in this case the narrow Mwt standard of choice usually is a Pullulan standard material.
  • a verification standard is also run with every sequence.
  • This standard is usually a broad (polydisperse) standard, whose properties are known and can be measured. This independently verifies that the calculation method has been correctly calibrated.
  • a Dextran 73KDa material is chosen for polysaccharide analyses.
  • a fixed dn/dc method is used to calculate the molecular weight data for all samples assuming a dn/dc of 0.147.
  • the laundry composition is suitable for use in laundry, for example for use in laundering clothes in a washing machine or for laundering clothes by hand in a bowl, bucket or other receptacle.
  • the laundry composition may be in the form of a liquid, solid, powder, pastille, bead or paste. Preferably it is in the form of a liquid.
  • the laundry composition is a liquid, then it may be either aqueous or non-aqueous. Furthermore, if it is non-aqueous it may preferably be in the form a single unit dose product.
  • liquid laundry detergents include heavy-duty liquid laundry detergents for use in the wash cycle of automatic washing machines, as well as liquid fine wash and liquid colour care detergents such as those suitable for washing delicate garments (e.g. those made of silk or wool) either by hand or in the wash cycle of automatic washing machines.
  • the laundry composition comprises pectin, wherein the level of pectin is from 0.1 to 15wt%, more preferably 0.2 to 12wt%, more preferably 0.5 to 10wt%, more preferably 0.7 to 8wt% and most preferably from 1 to 5wt%.
  • Anionic Surfactant are described in Anionic Surfactants Organic Chemistry (Surfactant Science Series Volume 56) edited By H.W.Stache (Marcel Dekker 1996).
  • the composition comprises from 1 to 80% wt. anionic surfactant based on the total weight of composition.
  • anionic surfactants for use in the invention are typically 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 such materials include alkyl sulphates, alkyl ether sulphates, alkaryl sulfonates, alphaolefin sulfonates and mixtures thereof.
  • the alkyl radicals preferably contain from 10 to 18 carbon atoms and may be unsaturated.
  • the alkyl ether sulphates may contain from one to ten ethylene oxide or propylene oxide units per molecule, and preferably contain one to three ethylene oxide units per molecule.
  • the counterion for anionic surfactants is generally an alkali metal such as sodium or potassium; or an ammoniacal counterion such as monoethanolamine, (MEA) diethanolamine (DEA) or triethanolamine (TEA).
  • compositions according to the invention may include alkylbenzene sulfonates, particularly linear alkylbenzene sulfonates (LAS) with an alkyl chain length of from 10 to 18 carbon atoms.
  • LAS linear alkylbenzene sulfonates
  • Commercial LAS is a mixture of closely related isomers and homologues alkyl chain homologues, each containing an aromatic ring sulphonated at the “para" position and attached to a linear alkyl chain at any position except the terminal carbons.
  • the linear alkyl chain typically has a chain length of from 11 to 15 carbon atoms, with the predominant materials having a chain length of about C12.
  • Each alkyl chain homologue consists of a mixture of all the possible sulphophenyl isomers except for the 1 -phenyl isomer.
  • LAS is normally formulated into compositions in acid (i.e. HLAS) form and then at least partially neutralized in-situ.
  • alkyl sulphate surfactant may be used, such as non-ethoxylated primary and secondary alkyl sulphates with an alkyl chain length of from 10 to 18.
  • alkyl ether sulfates having a straight or branched chain alkyl group having 10 to 18, more preferably 12 to 14 carbon 30 atoms and containing an average of 1 to 3EO units per molecule.
  • a preferred example is sodium lauryl ether sulfate (SLES) in which the predominantly C12 lauryl alkyl group has been ethoxylated with an average of 3EO units per molecule.
  • the alkyl ether sulphate may be provided in a single raw material component or by way of a mixture of components.
  • Preferred anionic surfactants also include the C16/18 alkyl ether sulphates
  • Preferred anionic surfactants also include rhamnolipids.
  • the composition comprises from 1 to 80% wt. non-ionic surfactant based on the total weight of composition.
  • Suitable non-ionic surfactants include polyoxyalkylene compounds, i.e. the reaction product of alkylene oxides (such as ethylene oxide or propylene oxide or mixtures thereof) with starter molecules having a hydrophobic group and a reactive hydrogen atom which is reactive with the alkylene oxide.
  • Such starter molecules include alcohols, acids, amides or alkyl phenols. Where the starter molecule is an alcohol, the reaction product is known as an alcohol alkoxylate.
  • the polyoxyalkylene compounds can have a variety of block and heteric (random) structures.
  • the blocks can comprise a single block of alkylene oxide, or they can be diblock alkoxylates or triblock alkoxylates.
  • the blocks can be all ethylene oxide or all propylene oxide, or the blocks can contain a heteric mixture of alkylene oxides.
  • examples of such materials include Cs to C22 alkyl phenol ethoxylates with an average of from 5 to 25 moles of ethylene oxide per mole of alkyl phenol; and aliphatic alcohol ethoxylates such as Cs to Cis primary or secondary linear or branched alcohol ethoxylates with an average of from 2 to 40 moles of ethylene oxide per mole of alcohol.
  • a preferred class of additional nonionic surfactant for use in the invention includes aliphatic Cs to Cis, more preferably C12 to C15 primary linear alcohol ethoxylates with an average of from 3 to 20, more preferably from 5 to 10 moles of ethylene oxide per mole of alcohol.
  • the alcohol ethoxylate may be provided in a single raw material component or by way of a mixture of components.
  • a further preferred non-ionic surfactant class are the C /is Alcohol ethoxylates.
  • a further preferred non-ionic surfactant class is the methyl ester ethoxylates, wherein the alkyl chain preferably comprises C to Cis aliphatic hydrocarbons, with an average of from 6 to 14 moles of ethylene oxide per mole of alcohol, more preferably 8 to 12 moles of ethylene oxide per mole of alcohol.
  • a further class of non-ionic surfactants are the alkyl poly glycosides.
  • the selection and amount of total surfactant is such that the composition is isotropic in nature.
  • a composition of the invention may contain one or more amphoteric (such as zwitterionic surfactants), preferably wherein if present, the amphoteric surfactant is present at a level of from 0.1 to 15 wt.%, preferably from 0.5 to 10 wt.%, more preferably from 1 to 5 wt.% and is preferably selected from alkyl betaines and the alkyl sulphobetaines (sultaines), more preferably carbobetaines and lauramine oxide.
  • amphoteric such as zwitterionic surfactants
  • amphoteric surfactants include alkyl amine oxides, alkyl amidopropyl betaines, alkyl glycinates, alkyl carboxyglycinates, alkyl amphoacetates, alkyl amphopropionates, alkylamphoglycinates, alkyl amidopropyl hydroxysultaines, acyl taurates and acyl glutamates.
  • the amphoteric surfactant preferably comprises alkyl radicals containing from about 8 to about 22 carbon atoms preferably selected from C12, C14, C16, C18 and C18:1 , the term “alkyl” being used to include the alkyl portion of higher acyl radicals.
  • a composition of the invention may comprise an effective amount of one or more enzyme preferably selected from the group comprising, peroxidases, proteases, xylanases, xantanase, lipases, phospholipases, esterases, cutinases, carrageenases, mannanases, pectate lyases, keratinases, reductases, oxidases, phenoloxidases, lipoxygenases, ligninases, pullulanases, tannases, pentosanases, malanases, p-glucanases, arabinosidases, hyaluronidase, chondroitinase, laccase, tannases, amylases, nucleases (such as deoxyribonuclease and/or ribonuclease), phosphodiesterases, or mixtures thereof.
  • one or more enzyme preferably selected from the group comprising, peroxidases, protea
  • the composition comprises from 0.05 to 5 wt.%, more preferably from 0.1 to 4 wt.%, more preferably from 0.5 to 3 wt.% of an enzyme, wherein the enzyme is preferably selected from one or more of a protease, amylase, mannanase, lipase, pectate lyase, laccase, phosphodiesterase and mixtures thereof.
  • an enzyme is preferably selected from one or more of a protease, amylase, mannanase, lipase, pectate lyase, laccase, phosphodiesterase and mixtures thereof.
  • Examples of preferred enzymes are sold under the following trade names Purafect Prime®, Purafect®, Preferenz® (IFF), Savinase®, Progress® Uno, Pectawash®, Mannaway®, Lipex ®, Lipoclean ®, Stainzyme®, Stainzyme Plus®, Natalase ®, Mannaway ®, Amplify ® Xpect ®, (Novozymes), Biotouch (AB Enzymes), Lavergy ® (BASF).
  • Purafect Prime® Purafect®
  • Preferenz® IFF
  • Savinase® Purafect Prime®
  • Progress® Uno Pectawash®
  • Mannaway® Mannaway®
  • Lipex ® Lipoclean ®
  • Stainzyme® Stainzyme Plus®
  • Natalase ® Mannaway ®
  • Amplify ® Xpect ® Novozymes
  • Biotouch AB Enzymes
  • compositions of the invention preferably comprises from 0.1 to 10 wt.% of a rheology modifier.
  • a composition of the invention may comprise one or more polymeric thickeners.
  • Suitable polymeric thickeners for use in the invention include polymeric gums, polycarboxylate polymers, more preferably polyacrylate polymers, more preferably hydrophobically modified alkali swellable emulsion (HASE) copolymers.
  • HASE copolymers for use in the invention include linear or crosslinked copolymers that are prepared by the addition polymerization of a monomer mixture including at least one acidic vinyl monomer, such as (meth)acrylic acid (i.e. methacrylic acid and/or acrylic acid); and at least one associative monomer.
  • sociative monomer in the context of this invention denotes a monomer having an ethylenically unsaturated section (for addition polymerization with the other monomers in the mixture) and a hydrophobic section.
  • a preferred type of associative monomer includes a polyoxyalkylene section between the ethylenically unsaturated section and the hydrophobic section.
  • Preferred HASE copolymers for use in the invention include linear or crosslinked copolymers that are prepared by the addition polymerization of (meth)acrylic acid with (i) at least one associative monomer selected from linear or branched C8-C40 alkyl (preferably linear C12- C22 alkyl) polyethoxylated (meth)acrylates; and (ii) at least one further monomer selected from C1-C4 alkyl (meth) acrylates, polyacidic vinyl monomers (such as maleic acid, maleic anhydride and/or salts thereof) and mixtures thereof.
  • the polyethoxylated portion of the associative monomer (i) generally comprises about 5 to about 100, preferably about 10 to about 80, and more preferably about 12 to about 60 oxyethylene repeating units.
  • compositions of the invention may have their rheology further modified by use of one or more external structurants which form a structuring network within the composition.
  • external structurants include hydrogenated castor oil, polysaccharides, microfibrous cellulose and citrus pulp fibre.
  • the presence of an external structurant may provide shear thinning rheology and may also enable materials such as encapsulates and visual cues to be suspended stably in the liquid.
  • the claimed rheology modifier is preferably selected from polyacrylate polymers, polycarboxylate polymers, hydrogenated castor oil derivatives, polycarboxylate polymers, polysaccharides, microfibrous cellulose, polymeric gums, and mixtures thereof.
  • compositions of the invention preferably comprise from 0.05 to 8 wt.%, more preferably from 0.1 to 5 wt.%, more preferably from 0.5 to 2 wt.% of a sequestrant.
  • compositions of the invention may also optionally contain organic detergent builder or sequestrant material.
  • organic detergent builder or sequestrant material examples include the alkali metal, citrates, succinates, malonates, carboxymethyl succinates, carboxylates, polycarboxylates and polyacetyl carboxylates. Specific examples include sodium, potassium and lithium salts of oxydisuccinic acid, mellitic acid, benzene polycarboxylic acids, and citric acid.
  • DEQUESTTM organic phosphonate type sequestering agents sold by Monsanto and alkanehydroxy phosphonates.
  • the sequestrant is selected from HEDP, DTPMP, EDTA, MGDA, GLDA or citric acid.
  • fragrance and perfume are used interchangeably.
  • the laundry composition comprises a fragrance, preferably wherein the fragrance is included between 0.001 and 2.0wt%, more preferably 0.01 and 1.5wt% and most preferably 0.1 and 1.0wt%.
  • the fragrance comprises greater than 50wt% biodegradable materials, more preferably greater than 60wt% biodegradable materials, more preferably greater than 70wt% biodegradable materials, more preferably greater than 80wt% biodegradable materials, more preferably greater than 90% biodegradable materials and most preferably the fragrance consists of 100wt% biodegradable materials.
  • the fragrance comprises at least one note (compound) from: alpha-isomethyl ionone, benzyl salicylate; citronellol; coumarin; hexyl cinnamal; linalool; pentanoic acid, 2- methyl-, ethyl ester; octanal; benzyl acetate; 1,6-octadien-3-ol, 3,7-dimethyl-, 3-acetate; cyclohexanol, 2-(1 ,1 -dimethylethyl)-, 1-acetate; delta-damascone; beta-ionone; verdyl acetate; dodecanal; hexyl cinnamic aldehyde; cyclopentadecanolide; benzeneacetic acid, 2-phenylethyl ester; amyl salicylate; beta-caryophyllene; ethyl undecylenate;
  • a composition of the invention may contain optional ingredients to enhance performance and I or consumer acceptability.
  • ingredients include anti-foams, fluorescers, shading dyes, preservatives, anti-microbials (e.g. bactericides), foam boosting agents, polyelectrolytes, anti-shrinking agents, anti-wrinkle agents, anti-oxidants, sunscreens, anti-corrosion agents, drape imparting agents, anti-static agents, ironing aids, dyes I colorants, pearlisers and/or opacifiers and microcapsules.
  • these optional ingredients are included individually at an amount of up to 5% (by weight based on the total weight of the composition).
  • Suitable fatty acids in the context of this invention include aliphatic carboxylic acids of formula RCOOH, where R is a linear or branched alkyl or alkenyl chain containing from 6 to 24, more preferably 10 to 22, most preferably from 12 to 18 carbon atoms and 0 or 1 double bond.
  • RCOOH aliphatic carboxylic acids of formula RCOOH
  • R is a linear or branched alkyl or alkenyl chain containing from 6 to 24, more preferably 10 to 22, most preferably from 12 to 18 carbon atoms and 0 or 1 double bond.
  • saturated C12-18 fatty acids such as lauric acid, myristic acid, palmitic acid or stearic acid
  • fatty acid mixtures in which 50 to 100% (by weight based on the total weight of the mixture) consists of saturated C12-18 fatty acids.
  • Such mixtures may typically be derived from natural fats and/or optionally hydrogenated natural oils (such as coconut oil, palm kernel oil or tallow).
  • the method of removal of soil from a fabric is provided.
  • the laundry composition of the first aspect is to launder fabrics.
  • the laundry composition is added to a wash liquor, for example via the dispensing drawer of a washing machine, via a dosing ‘ball’ / ‘cap’ or simply by adding directly to the wash liquor.
  • Fabrics to be laundered are also added to the wash liquor and the resulting combination of wash liquor and fabrics agitated.
  • the wash liquor is subsequently drained and one or more rinsing steps undertaken, wherein clean water (i.e. water substantially free from a laundry composition) is then added to the fabrics.
  • a final rinse step whereby a fabric conditioning composition is added to the rinse liquor may optionally be undertaken. After the final rinse the fabrics are drained of rinse liquor and drained in a conventional manner, for example by line drying or trying in a tumble dryer.
  • the fabrics used in the method may comprise any type of fabric used for the manufacture of garments, for example cotton, polyester, nylon, rayon or linen. Mixed fabrics may also be used, for example polycottons.
  • the fabric used in the method comprises cotton.
  • fabrics are treated with the laundry composition of the first aspect of the invention to minimise fabric greying or dulling during a laundry process. Redeposition of removed soil back onto fabrics causes greying or dulling and it is the reduction of the redeposition which can be realised using this method or use.
  • the method or use can involve the steps as described for the second aspect.
  • the laundry composition is used in the washing stage of the laundry process.
  • the method of the second aspect of the invention or the use or method of the third aspect of the invention may be carried in water of a particular hardness.
  • “Hard water” is typically water which has a degree of 20 or greater French Hard units. In some instances, the water hardness can be much greater, for example 30 or 40 French Hard units. A usual upper limit is 50 degrees French Hard units in typical laundry processes. Common ranges for Hard Water are 20 - 40 or 30 - 40 degrees French Hard.
  • Test formulations were prepared according to standard means of preparing laundry compositions as known to the skilled in the art. Table 1 : Test formulations list of ingredients (laundry “base”):
  • Red Pottery Clay (RPC) and Indian Red Soil (IRS) stains were sourced on 10 x 10 cm knitted polyester fabrics from Warwick Equest and prepared using the standard Laundry Appraisal clay staining protocol CS904. This method prepares 4 x 1cm diameter circular stains per fabric; the ratio of water to clay used for the RPC and the IRS stain preparation were 2:1 and 1:1, respectively.
  • the Tergotometer is model wash system comprising multiple open metal beakers that can be stirred via the use of a mechanical stirring arm.
  • each beaker can be setup to contain a specific combination of laundry ingredients. Since the fabrics used in each beaker are known specific liquor : cloth ratios can be achieved. Furthermore, the water used for the laundry process can also be controlled.
  • Such a system provides for good testing of laundry compositions that is representative of performance in full scale washing machines.
  • the standard experimental protocol for all the cleaning experiments can be summarised as follows: a) An X-Rite Color i7 was set with D65 on, a 10° observation, specular included, 420nm filter included. b) The intensities of the 4 x RPC and the 4 x IRS stains on knitted polyester fabrics were measured using the X-Rite Color i7 instrument to determine the pre-wash DE and R460 reflectance values and 95% confidence intervals, the fabrics being folded twice to give 4 layers of cloth underneath each measurement point. c) 500ml of water was added to each Tergotometer pot. d) 2.5ml of each test formulation was added to a separate Tergotometer pot. e) The wash temperature was set at 25°C.
  • Standard water hardness was considered to be 12°FH by using municipal water both for the washes and the rinses.
  • the Tergotometer stirrer speed was set at ⁇ 100rpm.
  • the wash cycle time was 30mins.
  • the liquor to cloth ratio was 25:1; the total weight of all the fabrics, i.e.
  • the delta (A) in reflectance values (measured at R460nm) recorded shows the difference in reflectance for areas of fabric that were initially clean prior to washing with their postwash reflectance. If the fabric remains perfectly clean then the AR460 value will be zero. However, in all cases some soil redeposition occurs. Hence a greater loss of whiteness is demonstrated by a lower negative number, thus indicating a worse anti-redeposition performance.
  • pectins offer a considerable performance benefit when compared with a laundry composition free from pectin.
  • Examples 1-6 according to the invention all perform better than a composition free from pectin, these samples all have a degree of methylation greater than 50% and a molecular weight of between 50 and 1000kDa. Exemplary performance is exhibited by Examples 1 , 2 and 3. These samples have a degree of methylation of above 60% and a molecular weight in the range of 100 to
  • compositions according to the invention increases when the testing is carried out in 36°FH water.

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Abstract

L'invention concerne une composition de lavage de linge comprenant de 0,1 à 15% en poids de pectine, les pectines ayant un degré de méthylation égal ou supérieur à 55% et les pectines ayant un poids moléculaire compris entre 75 kDa et 900 kDa ; l'invention concerne en outre un procédé ou une utilisation de ladite composition pour obtenir l'élimination de salissure ou la réduction à un minimum du grisage de tissus pendant un processus de lavage de linge.
PCT/EP2023/087218 2023-01-25 2023-12-21 Composition de lavage de linge Ceased WO2024156449A1 (fr)

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EP23838000.0A EP4655369A1 (fr) 2023-01-25 2023-12-21 Composition de lavage de linge
CN202380091293.6A CN120530185A (zh) 2023-01-25 2023-12-21 洗衣组合物

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999031211A1 (fr) * 1997-12-17 1999-06-24 Hercules Incorporated Polysaccharides a modification hydrophobe pour preparations d'entretien domestique
WO2020011764A1 (fr) * 2018-07-09 2020-01-16 Koninklijke Coöperatie Cosun U.A. Composition d'anti-tartre comprenant un polysaccharide d'acide uronique
CN110819666A (zh) * 2019-11-22 2020-02-21 江南大学 一种果胶洗涤剂

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999031211A1 (fr) * 1997-12-17 1999-06-24 Hercules Incorporated Polysaccharides a modification hydrophobe pour preparations d'entretien domestique
WO2020011764A1 (fr) * 2018-07-09 2020-01-16 Koninklijke Coöperatie Cosun U.A. Composition d'anti-tartre comprenant un polysaccharide d'acide uronique
CN110819666A (zh) * 2019-11-22 2020-02-21 江南大学 一种果胶洗涤剂

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Title
"Surfactant Science Series", vol. 56, 1996, MARCEL DEKKER, article "Anionic Surfactants Organic Chemistry"
ENGLYSTCUMMINGS, ANALYST, vol. 109, no. 7, 1984, pages 937 - 942
FILISETTI-COZZICARPITA, ANALYTICAL BIOCHEMISTRY, vol. 197, 1991, pages 157 - 162
HOU ET AL., BOTANICAL BULLETIN OF ACADEMIA SINCIA, vol. 40, 1999, pages 115 - 119
LEVIGNE S. ET AL., FOOD HYDROCOLLOIDS, vol. 16, 2002, pages 547 - 550
ROSENBOHM ET AL., CARBOHYDRATE RESEARCH, vol. 338, 2003, pages 637 - 649
SHULTZ: "Food Chemical Codex", 1965, NATIONAL ACADEMY OF SCIENCE
STROM ET AL., CARBOHYDRATE POLYMERS, vol. 60, 20 June 2005 (2005-06-20), pages 467 - 473
WALTER ET AL., JOURNAL OF FOOD SCIENCE, vol. 48, 1983, pages 1006 - 10070
WILLIAMS ET AL., JOURNAL OF AGRICULTURAL FOOD AND CHEMISTRY, vol. 51, 2003, pages 1777 - 1781

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