WO2015003913A1 - Composition de détergent - Google Patents

Composition de détergent Download PDF

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Publication number
WO2015003913A1
WO2015003913A1 PCT/EP2014/063472 EP2014063472W WO2015003913A1 WO 2015003913 A1 WO2015003913 A1 WO 2015003913A1 EP 2014063472 W EP2014063472 W EP 2014063472W WO 2015003913 A1 WO2015003913 A1 WO 2015003913A1
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WO
WIPO (PCT)
Prior art keywords
composition
composition according
anyone
iodine
ppm
Prior art date
Application number
PCT/EP2014/063472
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English (en)
Inventor
Sarmishta BISWAS
Alagirisamy NETHAJI
Maya Treesa Saji
Rudra Saurabh SHRESTH
Original Assignee
Unilever N.V.
Unilever Plc
Conopco, Inc., D/B/A Unilever
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Application filed by Unilever N.V., Unilever Plc, Conopco, Inc., D/B/A Unilever filed Critical Unilever N.V.
Publication of WO2015003913A1 publication Critical patent/WO2015003913A1/fr

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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
    • C11D3/48—Medical, disinfecting agents, disinfecting, antibacterial, germicidal or antimicrobial compositions
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N59/00—Biocides, pest repellants or attractants, or plant growth regulators containing elements or inorganic compounds
    • A01N59/12—Iodine, e.g. iodophors; Compounds thereof
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/19—Cosmetics or similar toiletry preparations characterised by the composition containing inorganic ingredients
    • A61K8/20—Halogens; Compounds thereof
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/19—Cosmetics or similar toiletry preparations characterised by the composition containing inorganic ingredients
    • A61K8/22—Peroxides; Oxygen; Ozone
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/33—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing oxygen
    • A61K8/39—Derivatives containing from 2 to 10 oxyalkylene groups
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/40—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing nitrogen
    • A61K8/44—Aminocarboxylic acids or derivatives thereof, e.g. aminocarboxylic acids containing sulfur; Salts; Esters or N-acylated derivatives thereof
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/46—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing sulfur
    • A61K8/463—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing sulfur containing sulfuric acid derivatives, e.g. sodium lauryl sulfate
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/46—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing sulfur
    • A61K8/466—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing sulfur containing sulfonic acid derivatives; Salts
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q17/00—Barrier preparations; Preparations brought into direct contact with the skin for affording protection against external influences, e.g. sunlight, X-rays or other harmful rays, corrosive materials, bacteria or insect stings
    • A61Q17/005—Antimicrobial preparations
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q19/00—Preparations for care of the skin
    • A61Q19/10—Washing or bathing preparations
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/02—Anionic compounds
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/38—Cationic compounds
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/66—Non-ionic compounds
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/39—Organic or inorganic per-compounds
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/395—Bleaching agents

Definitions

  • the invention relates to cleaning compositions having anti-microbial benefits, in particular cleaning compositions having enhanced anti-microbial benefit because of the synergistic interaction between a surfactant and an iodine containing inorganic salt and a bleach activator.
  • WO 2001/38626 discloses stain treatment compositions comprising surfactant and iodate at acidic pH.
  • the iodate acts as an oxidising agent and gets reduced to iodine under acidic conditions.
  • acidic pH is not suitable for general detergent compositions, since stains and soil are better removed at alkaline pH.
  • WO2008/137769 discloses warewashing compositions including a hardness ion (e. g. , magnesium and calcium ions) as a corrosion inhibitor. Such compositions can be used to reduce corrosion or etching of glass, porcelain and ceramic, it also relates to methods employing these warewashing compositions.
  • WO2008/137769 particularly discloses a warewashing composition including a cleaning agent having a detersive amount of a surfactant, an alkaline source in an amount effective to provide a use composition having a pH of at least about 8 and a corrosion inhibitor in an amount sufficient for reducing corrosion of glass.
  • the corrosion inhibitor as mentions includes a salt of calcium and/or magnesium and iodide salts thereof are disclosed. However no mention is made to anti-microbial effect.
  • US 2,599,140 discloses an iodine detergent for cleansing hands comprising a solvent mixture of a polyalkylene glycol and glycerine having in solution therein elemental iodine, an alkali metal iodide and a detergent compatible with the other ingredients, which detergent is an anionic sulphated synthetic detergent.
  • this composition is slightly acidic and remains so on dilution and this is desirable as the iodine is more stable in slightly acidic composition and eliminates the risk of inactivation of the iodine with reaction with an alkali.
  • this composition would be undesirable in laundry and there still remains a need to provide an anti-microbial composition having neutral to alkaline pH with low levels of halogens, halogen oxidants or halogen salts that can be used with a variety of surfactants, including sulphonated anionic surfactants.
  • US 3,821 ,124 discloses detergent and shampoo compositions comprising an anionic, non-soap, non-sulphonate surfactant and iodate.
  • sulphonated surfactants are especially preferred in many detergent compositions due to their low cost and high activity. It therefore remains to be desired to provide an anti-microbial composition having neutral to alkaline pH, that can be used with a variety of surfactants, including sulphonated and soap based anionic surfactants.
  • US 3,338,837 relates to a highly germicidally-active iodinated detergent composition of high concentration comprising 4 to 15% of an organic detergent which may be anionic, cationic or non-ionic detergent, 10 to 30% of an organic halogen oxidant , 0.5 to 5% of an inorganic iodide and an inorganic alkalizer sufficient to raise the pH of the composition to between 7.8 to 8.4.
  • This composition comprises a high amount of halogen oxidant which is not preferred in the present invention. It therefore remains to be desired to provide anti-microbial compositions that have low levels of halogens, halogen oxidants or halogen salts.
  • bleaching agents are proposed in the art for providing anti microbial benefits.
  • many bleaching agents are known to inhibit the growth of micro organisms, their efficacy is found to be reduced in the presence of a surfactant. Therefore most bleaching agents do not provide adequate antimicrobial efficacy in when used in detergent compositions.
  • Detergent compositions having a neutral to alkaline pH and that have low levels of halogens, halogen oxidants, or halogen salts providing good cleaning and improved anti-microbial benefits remain to be desired.
  • a detergent composition comprising surfactant, an iodine containing inorganic salt, and an iodine activator, provides enhanced
  • the invention provides a detergent composition comprising: 3 to 90% by weight of a surfactant, 0.005 to 10% by weight of an iodine containing inorganic salt selected from iodide salts, and 0.005 to 10% by weight of an iodine activator.
  • a cleaning liquor comprising the composition according to the invention, wherein the iodine containing inorganic salt is present in a concentration of between 1 ppm and l OOOppm.
  • the invention provides a cleaning liquor wherein the composition according to anyone of the preceding claims is dosed in a concentration of between 1 ppm and 5000ppm in water.
  • the invention provides a packaged cleaning composition, wherein the composition according to anyone of the preceding claims is diluted with water in a ratio of between 1 :10 to 1 :1000 in a direct application container.
  • the invention provides a method of rendering a substrate anti-microbial comprising the steps in sequence of preparing a 0.05% - 1 % by weight solution of the composition according to anyone of claims 1 to 5 in water, allowing the substrate to be in contact with the solution for at least 1 min and; drying the substrate.
  • the invention provides the use of a composition comprising a surfactant selected from anionic, cationic and non-ionic surfactants, an iodine containing inorganic salt selected from iodide salts, and an iodine activator in a washing process.
  • a surfactant selected from anionic, cationic and non-ionic surfactants
  • an iodine containing inorganic salt selected from iodide salts
  • an iodine activator in a washing process.
  • microbial in the term anti- microbial includes bacteria, archaea, viruses, protozoa, fungi, algae or cysts.
  • substrate typically means fabric and household surfaces. By low levels it is meant that the composition does not contain more than 0.5%w of halogens, halogen oxidants or halogen salts.
  • the most preferred applications are laundry cleaning, laundry conditioning, and household cleaning while the present invention could be applicable in other fields like personal care as well.
  • the invention provides a detergent composition
  • a detergent composition comprising a surfactant, iodine containing inorganic salt selected from iodide salts; and an iodine activator selected from oxidizing bleaching agents selected from chlorine, bromine and peroxide based bleaching agents.
  • composition according to the present invention comprises 3 to 90% by weight of a surfactant.
  • the surfactant in the composition may be any type of surfactant, including anionic, cationic, amphoteric, zwitterionc and non-ionic surfactants.
  • non-ionic surfactants are more preferred than non-ionic surfactants in the present invention.
  • suitable non-ionic surfactants that may be used are linear or branched fatty alcohol or a condensation product of a linear or branched fatty alcohol and alkylene oxide (e. g. ethylene oxide and/or propylene oxide), preferably ethylene oxide (also known as ethoxylated fatty alcohol or alcohol ethoxylate).
  • Linear or branched fatty alcohol chain comprises from 5 to 8 carbon atoms.
  • alkoxylated the number of alkylene oxide groups is not more than 5, preferably between 1 and 4. Ethylene oxide (EO) groups are the most preferred.
  • Anionic surfactants are the most preferred in laundry detergent compositions. Suitable anionic surfactants for the detergent compositions which may be used in the present invention are suphonated and carboxylated anionic surfactants.
  • Suitable suphonated anionic surfactants include (usually) water-soluble alkali metal salts of organic sulphonates having alkyl radicals typically containing from about 8 to about 22 carbon atoms (the term alkyl being used to include the alkyl portion of higher acyl radicals), alkaryl sulphonates, alkanoyl isethionates, alkyl sulphosuccinates, N-alkoyl
  • alkyl and acyl groups contain from 8 to 22 carbon atoms, preferably 8 to 18 carbon atoms, still more preferably 12 to 15 carbon atoms and may be unsaturated.
  • Suitable carboxylated anionic surfactants which may be used in the present invention includes carboxylates or dicarboxylates having formula R-COO " Na + , wherein R is alkyl group having 12 to 18 carbon atoms such as alkyl succinates and alkyl ether carboxylates.
  • Alkyl ether carboxylates may contain from 1 to 10 ethylene oxide or propylene oxide units per molecule, and preferably contain 1 to 3 ethylene oxide units per molecule.
  • SAES sodium alcohol ethoxy-ether sulphate
  • AES alky ether sulphate
  • SAES sodium alcohol ethoxy-ether sulphate
  • AES alky ether sulphate
  • SAES sodium alcohol ethoxy-ether sulphate
  • AES alky ether sulphate
  • SAES sodium alcohol ethoxy-ether sulphate
  • EO ethylene oxide
  • anionics examples include linear alkyl benzene sulfonate (LAS), sodium lauryl ether sulphate (SLES), Methyl Ester Sulphonate (MES), ammonium lauryl sulphosuccinate, sodium cocoyl isethionate, sodium lauroyl isethionate, sodium N- lauryl sarcosinate and sodium salts of fatty acids having 12 to 18 carbon atoms.
  • Cationic surfactants are especially preferred for laundry treatment and conditioning compositions.
  • Cationic surfactants based on a quaternary ammonium group are the most preferred, and are characterised in that the ammonium salt has the general formula: R 1 R 2 R 3 R 4 N + X " , wherein R-i is a C 12 -C 18 alkyl group, an aryl group or an aryl- alkyl group, R 2 is selected from an aryl group or an aryl-alkyl group having 1 to 5 carbon atoms or a C-
  • the inorganic anion is preferably chosen from halide (including chloride, bromide and iodide), phosphate, sulphite, sulphate, bisulphate or OH " .
  • a quaternary ammonium hydroxide is considered to be a quaternary ammonium salt.
  • the anion is a halide ion or sulphate, most preferably a chloride or sulphate.
  • Cetyl-trimethylammonium halides and benzalkonium chlorides are specifically preferred as examples of a suitable compounds and commercially abundantly available.
  • the surfactant is present in the composition in a concentration of between 3% and 90% by weight, preferably at least 5%, more preferably at least 8%, still more preferably at least 10% or even at least 15% by weight, but typically not more than 75%, still more preferably not more than 60%, even more preferably not more than 40% or even not more than 30% by weight of the composition.
  • the surfactant is preferably present in the wash liquor in a concentration of between 50ppm and 2000ppm, preferably at least l OOppm, more preferably at least 150ppm, but typically not more than 1500ppm or even not more than 10OOppm.
  • composition according to the present invention comprises 0.005 to 10% by weight of an iodine containing inorganic salt selected from iodide salts.
  • Water-soluble iodide salts are preferred.
  • the preferred cations in the salts of the present invention are sodium, potassium, calcium, magnesium and ammonium with potassium being the most preferred and calcium and magnesium being the least preferred.
  • Calcium and magnesium are hardness ions and will not be suitable with all surfactants. Hardness ion sensitive surfactants are less preferred with calcium and magnesium iodide.
  • iodine containing inorganic salts examples include potassium iodide, sodium iodide, calcium iodide, magnesium iodide, ammonium iodide and ammonium iodide.
  • the iodine containing inorganic salt is present in the composition in a concentration of 0.005 to 10% by weight, preferably at least 0.01 %, still more preferably at least 0.05%, or even at least 0.1 % by weight of the composition, but preferably not more than 8%, more preferably not more than 0.6%, or even not more than 0.5% by weight of the composition.
  • the iodine containing inorganic salt is preferably present in the wash liquor in a concentration of between 1 ppm and l OOOppm, preferably at least 2 ppm, more preferably at least 5 ppm, but preferably not more than 800ppm, more preferably not more than 500ppm.
  • the ratio of surfactant to the iodine salt is preferably between 100:1 and 1 :100, more preferably between 20:1 and 1 :20, more preferably between 10:1 and 1 :10.
  • the composition according to the present invention comprises an iodine activator.
  • the idione activator is preferably a bleaching agent, more preferably a bleaching agent selected from oxidizing bleaching agents selected from chlorine, bromine and peroxide based bleaching agents.
  • iodine activator and bleach agent are used exchangeably.
  • a preferred class of bleaching agents suitable as iodine activator is the class of halogen bleaches, such as hypo halites and halogen salts.
  • Preferred hypo halites are Sodium, potassium, magnesium and calcium hypohalites.
  • the most preferred hypohalites are hypochlorites, such as sodium hypochlorite, potassium hypochlorite, magnesium hypochlorite and calcium hypochlorite.
  • Other halogen containing bleaches halogenated cyanuric acids, most preferably trichloroisocyanuric acid (TCCA), and sodium dichloroisocyanuric acid (NaDCCA)
  • iodine activator bleaches is the class of peroxides.
  • a common example is hydrogen peroxide (H 2 0 2 ) and alkyl peroxides.
  • hydrogen peroxide H 2 0 2
  • alkyl peroxides examples include salts of monopersulphate, perborate monohydrate, perborate tetrahydrate, and percarbonate.
  • Monoperoxy acids useful herein include alkyl peroxy acids and aryl peroxyacids such as peroxybenzoic acid and ring-substituted peroxybenzoic acids (e.g.
  • diperoxy acids useful herein include alkyl diperoxy acids and aryldiperoxy acids, such as 1 ,12-di-peroxydodecanedioic acid (DPDA), 1 ,9- diperoxyazelaic acid, diperoxybrassylic acid, diperoxysebacic acid and
  • diperoxyisophthalic acid diperoxyisophthalic acid, and 2-decyldiperoxybutane-1 ,4-dioic acid.
  • the most common are percarbonate and perborate, the latter being less preferred for environmental reasons.
  • the bleach activators that are typically used with peroxygen compounds are well known in the art.
  • TAED ⁇ , ⁇ , ⁇ ', ⁇ '-tetraacetyl ethylene diamine
  • SNOBS sodium nonanoyloxybenzene sulphonate
  • SBOBS sodium benzoyloxybenzene sulphonate
  • SPCC cationic peroxyacid precursor
  • the iodine activator is present in the composition in a concentration of 0.005 to 10% by weight, preferably at least 0.01 %, still more preferably at least 0.05%, or even at least 0.1 % by weight of the composition, but preferably not more than 8%, more preferably not more than 0.6%, or even not more than 0.5% by weight of the composition.
  • the iodine activator is preferably present in the wash liquor in a concentration of between 1 ppm and l OOOppm, preferably at least 2 ppm, more preferably at least 5 ppm, but preferably not more than 800ppm, more preferably not more than 500ppm.
  • the ratio of iodine salt to iodine activator is preferably between 100:1 and 1 :100, more preferably between 80:1 and 1 :50, more preferably between 50:1 and 1 :10. pH of the composition
  • the combination of a surfactant and the iodine containing inorganic salts has been found to have a synergistic antimicrobial activity at neutral to alkaline pH making it suitable for cleaning as well. Therefore, the pH of the composition of the present invention is preferably between 6 and 12. The best results are obtained when the pH of the composition between 7 and 12, still more preferably between 7 and 1 1.
  • composition according to the invention may further comprise conventional ingredients including builder, electrolyte and/or fillers. When one or more of these ingredients are present, together they are typically present in the composition in a concentration of between 1 % and 80% by weight of the total composition, preferably at least 5%, and typically not more than 50%.
  • composition may further comprise hydrotropes, soil release polymers, perfume, fluorescers, shading dyes, sequestrants, and anti re-deposition agents.
  • the composition according to the invention is preferably dosed to a concentration of between 100ppm and 20000ppm, preferably between 300ppm and l OOOOppm, more preferably between l OOOppm and 8000ppm in the wash liquor.
  • the dosing is preferably between 100ppm and l OOOOppm, more preferably not less than 500ppm, or even not less than l OOOppm, but typically not more than 5000ppm in the wash liquor.
  • the dosing is preferably between 100ppm and 15000ppm, more preferably not less than 500ppm, or even not less than l OOOppm, but typically not more than l OOOOppm in the wash liquor.
  • composition may be used neat or diluted.
  • composition For laundry composition the composition is added to the washing process neat and diluted to the concentration as indicated above.
  • the composition for laundry use is preferably a liquid or a powder.
  • tablets, bars, gels and pastes are also contemplated in the context of the present invention.
  • a typical dosage for a detergent composition to a washing process is 1-20 grams of detergent composition per litre of wash liquor for horizontal axis washing machines and hand washing process, while the dosage to a vertical axis washing machine is generally in the order of 0.1 to 3 grams per litre of wash liquor.
  • the composition is typically applied in a diluted form, directly to the surface.
  • a composition is preferably diluted with water in a ratio of between 1 :10 to 1 :1000.
  • the composition is packaged in a direct application container, such as a trigger spray dispenser.
  • composition according to the invention is applied neat.
  • the composition according to the invention for dishwashing use is preferably a liquid, a paste, a powder or a shaped composition. Both manual dishwashing and machine dishwashing are considered in the context of the present invention.
  • a method for rendering a substrate anti-microbial comprising the steps in sequence of preparing a 0.05% - 1 % by weight solution of the composition according to the invention in water, allowing the substrate to be in contact with the solution for at least 1 minute and drying the substrate.
  • the contact time required is dependent on the target microorganism.
  • An enhanced antibacterial effect is achieved with a contact time of at least 1 minute for bacteria but in the case of viruses, a contact time of at least 5 minutes is required depending on the type and structure of the virus. Examples
  • BAC Benzalkonium chloride
  • Trichloroisocyanuric acid (TCCA) (ex Achlor Donge Ltd)
  • test solution of surfactant and the iodine salt in water were prepared in the indicated concentrations.
  • the test solutions as prepared had a pH of 7. Some experiments were done with the composition at pH 7, while for others the pH was adjusted to 10.5. The pH was adjusted with sodium carbonate solution (0.5 g/L Na 2 C0 3 in water) or with sodium hydroxide.
  • Test bacteria S.aureus ATCC 6538
  • E.hirae ATCC 10541 The test bacteria was grown overnight at 37°C on TSA plate. The grown culture colonies were resuspended in 0.8% saline solution. The culture cell density was adjusted to get the final count of 1 * 10 8 cfu/ml, based on a 620nm optical density calibration chart (0.8 OD at 620nm). 9ml of the test solution was taken in a sterile sample container and 1 ml of the test culture was added. After the specified contact time, 1 ml of the above mixture was immediately neutralized in 9 ml D/E broth as commonly used in the art. This was again serially diluted in D/E broth and plated on TSA (a.k.a.
  • the residual log value is 4 (i.e. 10000 cfu) and the inventive composition it is 2 (i,e 100). That means that the end culture that is treated with the inventive composition has only 1 % of the residual bacteria as the comparative composition. So 2 points on the log scale makes a big difference when it comes to hygiene.
  • Example 1 Anti-microbial effect of Potassium Iodide and sulphonated Anionic surfactant (Sodium LAS) and an oxidizing agent (TCCA) on S. aureus
  • This example shows the antibacterial efficacy of a sulphonated anionic surfactant (LAS, Sodium linear alkylbenzene sulphonate) at pH 7 and compared to the individual components as well as the untreated control sample.
  • the contact time was 1 minute.
  • the Iodine salt (Kl) to activator (TCCA) ratio was 40:1 . 1 min, pH 7 Avg. Residual Residual log Log
  • This example shows the antibacterial efficacy of a sulphonated anionic surfactant (SLES) at pH 7 and compared to the individual components as well as the untreated control sample.
  • the contact time was 1 minute.
  • the Iodine salt (Kl) to activator (TCCA) ratio was 20:1.
  • Example 3 Anti-microbial effect of Potassium Iodide and Methyl ester solphonate surfactant (MES) and an oxidizing agent (TCCA) on S. aureus (ATCC 6538) at pH 7
  • MES Methyl ester solphonate surfactant
  • TCCA oxidizing agent
  • This example shows the antibacterial efficacy of a surfactant (SLES) at pH 7 and compared to the individual components as well as the untreated control sample.
  • the contact time was 1 minute.
  • the Iodine salt (Kl) to activator (TCCA) ratio was 20:1 .
  • Example 4 Anti-microbial effect of Potassium Iodide and Nonionic surfactant (E05) and an oxidizing agent (TCCA) on S. aureus (ATCC 6538) at pH 7
  • This example shows the antibacterial efficacy of a non-ionic surfactant (E05) at pH 7 and compared to the individual components as well as the untreated control sample.
  • the contact time was 1 minute.
  • the Iodine salt (Kl) to activator (TCCA) ratio was 20:1 .
  • Example 5 Anti-microbial effect of Potassium Iodide and soap (laurate) and an oxidizing agent (TCCA) on S. aureus (ATCC 6538) at pH 7
  • TCCA oxidizing agent
  • This example shows the antibacterial efficacy of soap (laurate) at pH 7 and compared to the individual components as well as the untreated control sample.
  • the contact time was 1 minute.
  • the Iodine salt (Kl) to activator (TCCA) ratio was 20:1 .
  • Example 6 Anti-microbial effect of Potassium Iodide and sulphonated Anionic surfactant (Sodium LAS) and an oxidizing agent (H 2 0 2 ) on S. aureus (ATCC 6538) at pH 7
  • This example shows the antibacterial efficacy of a sulphonated anionic surfactant (LAS, Sodium linear alkylbenzene sulphonate) at pH 7 and compared to the individual components as well as the untreated control sample.
  • LAS Sodium linear alkylbenzene sulphonate
  • the contact time was 1 minute.
  • the Iodine salt (Kl) to activator (H 2 0 2 ) ratio was 1 :4. 1 min, pH 7 Residual Residual log Log
  • This example shows the antibacterial efficacy of a sulphated anionic surfactant (SLES) at pH 7 and compared to the individual components as well as the untreated control sample.
  • the contact time was 1 minute.
  • the Iodine salt (Kl) to activator (H 2 0 2 ) ratio was 1 :4. 1 min, pH 7 Residual Residual log Log
  • Example 8 Anti-microbial effect of Potassium Iodide and Nonionic surfactant (E05) and an oxidizing agent (H 2 0 2 ) on S. aureus (ATCC 6538) at pH 7
  • This example shows the antibacterial efficacy of a non-ionic surfactant (E05) at pH 7 and compared to the individual components as well as the untreated control sample.
  • the contact time was 1 minute.
  • the Iodine salt (Kl) to activator (H 2 0 2 ) ratio was 1 :4.
  • Example 9 Anti-microbial effect of Potassium Iodide and soap (laurate) and an oxidizing agent (H 2 0 2 ) on S. aureus (ATCC 6538) at pH 7
  • This example shows the antibacterial efficacy of soap (laurate) at pH 7 and compared to the individual components as well as the untreated control sample.
  • the contact time was 1 minute.
  • the Iodine salt (Kl) to activator (H 2 0 2 ) ratio was 1 :4.
  • Example 10 Anti-microbial effect of Potassium Iodide and sulphonated Anionic surfactant (Sodium LAS) and an oxidizing agent (percarbonate + TAED) on S. aureus (ATCC 6538) at pH 7
  • This example shows the antibacterial efficacy of a sulphonated anionic surfactant (LAS, Sodium linear alkylbenzene sulphonate) at pH 7 and compared to the individual components as well as the untreated control sample.
  • LAS Sodium linear alkylbenzene sulphonate
  • the contact time was 1 minute.
  • the Iodine salt (Kl) to activator (percarbonate + TAED) ratio was 1 :4.

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Abstract

La présente invention concerne des compositions de nettoyage présentant des bienfaits en termes de propriétés antimicrobiennes, et concerne notamment des compositions de nettoyage présentant un bienfait en termes de propriétés antimicrobiennes améliorées du fait de l'interaction synergique entre un tensioactif et un sel inorganique contenant de l'iode et un activateur de blanchiment. Un objet de l'invention est de pourvoir à une composition de détergent présentant un bienfait en termes d'efficacité de nettoyage et de propriétés antimicrobiennes améliorées à un pH allant de neutre à alcalin. Il a été observé qu'une composition de détergent qui comprend un tensioactif, un sel inorganique contenant de l'iode, et un activateur d'iode, offre une efficacité antimicrobienne améliorée.
PCT/EP2014/063472 2013-07-11 2014-06-26 Composition de détergent WO2015003913A1 (fr)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023204177A1 (fr) * 2022-04-18 2023-10-26 花王株式会社 Composition de détergent pour lave-vaisselle automatique

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3338837A (en) * 1965-08-25 1967-08-29 Leonard J Hodes Iodinated detergent composition
WO1997007202A1 (fr) * 1995-08-11 1997-02-27 Novo Nordisk A/S Nouvelles enzymes lipolytiques
WO2000057703A1 (fr) * 1999-03-26 2000-10-05 Ecolab Inc. Compositions antimicrobiennes et antivirales contenant une espece oxydante
WO2001011969A1 (fr) * 1999-08-13 2001-02-22 Novozymes A/S PROCEDE ENZYMATIQUE POUR TUER OU INHIBER DES CELLULES MICROBIENNES AVEC UN Ph ELEVE

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3338837A (en) * 1965-08-25 1967-08-29 Leonard J Hodes Iodinated detergent composition
WO1997007202A1 (fr) * 1995-08-11 1997-02-27 Novo Nordisk A/S Nouvelles enzymes lipolytiques
WO2000057703A1 (fr) * 1999-03-26 2000-10-05 Ecolab Inc. Compositions antimicrobiennes et antivirales contenant une espece oxydante
WO2001011969A1 (fr) * 1999-08-13 2001-02-22 Novozymes A/S PROCEDE ENZYMATIQUE POUR TUER OU INHIBER DES CELLULES MICROBIENNES AVEC UN Ph ELEVE

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023204177A1 (fr) * 2022-04-18 2023-10-26 花王株式会社 Composition de détergent pour lave-vaisselle automatique

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