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EP1670890B1 - Procede de nettoyage - Google Patents

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Publication number
EP1670890B1
EP1670890B1 EP04768525A EP04768525A EP1670890B1 EP 1670890 B1 EP1670890 B1 EP 1670890B1 EP 04768525 A EP04768525 A EP 04768525A EP 04768525 A EP04768525 A EP 04768525A EP 1670890 B1 EP1670890 B1 EP 1670890B1
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EP
European Patent Office
Prior art keywords
foam
acid
fabric
water
cleaning
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.)
Expired - Lifetime
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EP04768525A
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German (de)
English (en)
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EP1670890A1 (fr
Inventor
Mattia De Dominicis
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Reckitt Benckiser NV
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Reckitt Benckiser NV
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Priority claimed from GB0323394A external-priority patent/GB0323394D0/en
Priority claimed from GB0409178A external-priority patent/GB2413336A/en
Application filed by Reckitt Benckiser NV filed Critical Reckitt Benckiser NV
Publication of EP1670890A1 publication Critical patent/EP1670890A1/fr
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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
    • C11D3/0005—Other compounding ingredients characterised by their effect
    • C11D3/0094—High foaming compositions
    • 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
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06L—DRY-CLEANING, WASHING OR BLEACHING FIBRES, FILAMENTS, THREADS, YARNS, FABRICS, FEATHERS OR MADE-UP FIBROUS GOODS; BLEACHING LEATHER OR FURS
    • D06L4/00—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs
    • D06L4/10—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which develop oxygen
    • D06L4/12—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which develop oxygen combined with specific additives
    • 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
    • C11D2111/40—Specific cleaning or washing processes
    • C11D2111/42—Application of foam or a temporary coating on the surface to be cleaned

Definitions

  • the invention relates to method of treating soft surfaces by the production of a stable foam from a solution of a cleaning formulation and applying the stable foam to the fabric comprising a source of hydrogen peroxide, such as sodium percarbonate, and at least one surfactant.
  • the stable foam can be used for direct treatment of stains on soft surfaces (fabric or carpet) and it is prepared by mixing a solution of a cleaning formulation, preferably in combination with aerating, for, preferably, less than 5, 4, 3, 2 minutes: preferably the foam is formed quickly, in less than 1 minute, between 5 and 50, 10 and 40 seconds from mixing with water.
  • a method of cleaning stains on a soft surface comprising dissolving a solid cleaning formulation in water, the formulation comprising a source of active oxygen and at least one surfactant with water to form a stable foam, applying the foam directly onto the stained soft surface and cleaning the fabric in a fabric washing machine, with or without the addition of a fabric detergent, or mixing with water the stable foam formulation from the soft surface.
  • the cleaning formulation is a solid, such as a granular, compacted or powder composition, ideally the cleaning formulation is granular or powder, to aid dissolution in water.
  • warm water is used (greater than 25, 30, 40 or 50°C, ideally less than 80, 70, 60, 50°C).
  • a method of cleaning stains on a soft surface comprising mixing (preferably dissolving) a solid, preferably a powder, cleaning formulation in water, the formulation comprising a source of active oxygen and at least one surfactant with water to form a stable foam and applying the foam directly onto the stained soft surface.
  • the time period between applying the stable foam and any of the subsequent steps is at least 10, 20, 30, 40, 50, 60 seconds, ideally more than 1, 2, or 3 minutes, advisably the stable foam is not left for more than 10, 9, 8, 7, 6, 5, or 4 minutes.
  • the foam retains at least 80%, 90% or 95% of its volume for 2 minutes after its formation.
  • the foam is prepared by dissolving 15 grams of solid composition into 100 ml of water at 40°C.
  • the stable foam may be prepared by any suitable mixing device or aeration device to incorporate air into the cleaning formulation solution.
  • the mixing device offers particular advantages in ensuring that all of the solid composition is dissolved prior to application. This mixing is important in preventing fibre or colour damage on the soft surface since undissolved solids found on the fibre can provide for localised damage due largely to the high concentration of active oxygen. By simply applying the stable foam on the fabric such damage is virtually eliminated as undissolved solid remains at the bottle of the water container
  • a cleaning solution containing a foaming surfactant is necessary for preparing the stable foam.
  • the inclusion of the cleaning formulation of a source of active oxygen provides for oxygen to be evolved during dissolution further providing a rapid development of the stable foam.
  • a container is also ideally required where the stable foam is prepared.
  • the stable foam is prepared by the use of cellular plastic.
  • Cellular plastics are those with a density of between 1 and 500 kg/m 3 preferably between 20 and 80 kg/m 3 and with an average pore diameter of at least 0.1 mm, preferably at least 0.4 mm.
  • the cellular plastic has a porosity of >50%, >60%, >70% or >80%.
  • the "average pore diameter” is a value measured in accordance with ASTM (Designation: D4404-84) and is specifically a value determined by the measurement of the diameter of pores in accordance with a mercury penetration process using a mercury porosimeter manufactured by Porous Material, Inc.
  • Suitable cellular plastics are those readily available for example from Euro foam, Miarka and Menshen and are made by any table water-insoluble plastic such as cellulose, polyurethane, polyester, polyether, or blends thereof.
  • the cellular plastic is attached to a handle so that the user does not need to get their hands wet.
  • the device comprising the cellular plastic is plunged into the cleaning formulation containing solution and pressed several times such that the liquid is aerated to form the stable foam when the formulation is squeezed through the cellular plastic.
  • the device can be moved up and down pushing it against the bottom of a suitable container, until the cleaning formulation is transformed into the stable foam.
  • the time necessary to create the foam with a suitable cellular plastic is quite low, between 10 and 60 seconds, typically below 2 minutes.
  • the solution is pumped by each up and down movement through the pores of the cellular plastic to form the stable foam.
  • the liquid excess can be squeezed out from the cellular plastic component.
  • the cellular plastic can be then dipped into the foam and applied onto the surface to be treated.
  • the device can also be used to rub the surface with the cellular plastic component. During the rubbing action the cleaning foam can more easily penetrate the stain that can in addition be adsorbed by the cellular plastic.
  • a rinsing step might be necessary or eventually in the case of fabric, a normal wash can be done in a fabric washing machine.
  • the device consists of at least two components, a handle (1) and cellular plastic (3), attached to the handle by a glue or a heat seal.
  • the handle (1) can be formed for example by one piece or two identical stick parts attached together through a screwing system. Each stick has a diameter from 1 mm to 6 cm, preferably from 3 mm to 12 mm and it may have a cavity running through the centre to reduce weight' and material costs.
  • the wall thickness of the handle (1) is from 0.1 mm up to 1 mm, preferably between 0.1 mm to 0.5 mm.
  • the handle length may range from 1 cm up to 25 cm, preferably from 3 cm to 15 cm.
  • the handle can be made of wood, metal or plastic. Preferred is a plastic material and more preferred plastic materials are polyethylene, polypropylene, polystyrene, or PET.
  • the handle is attached to a support (2) that is a disk with a diameter from 1 cm to 30 cm, preferably from 3 cm to 10 cm.
  • the thickness can range from 0.1 mm up to 12 cm, preferably from 0.5 to 10 mm.
  • the support (2) can be made of wood, metal or plastic. Preferred is plastic material and more preferred are polyethylene, polypropylene, polystyrene, or PET.
  • the cellular plastic (3) can be any shape but is preferably cylindrical shape.
  • the diameter can range from 1 cm to 20 cm, preferably from 3 cm to 10 cm.
  • the height can range from 0.1 mm up to 50 mm, preferably from 1 to 10 mm.
  • the cellular plastic can be made of synthetic materials as polyurethane, polyester, polyether, or a blend thereof or natural cellulose.
  • the support (2) can be attached to the handle (1) by heat sealing, with a glue or with any screw system type.
  • the cellular plastic(3) is attached to the support (2) by heat sealing or with a glue.
  • the cleaning formulation contains oleoyl sarcosinate (preferably as a sodium salt), a source of active oxygen, such as sodium percarbonate, and preferably at least one other surfactant.
  • oleoyl sarcosinate preferably as a sodium salt
  • a source of active oxygen such as sodium percarbonate
  • at least one other surfactant preferably at least one other surfactant.
  • oleoyl sarcosinate especially where the composition is applied directly onto the stain.
  • the above surfactant types can be used in combination with other surfactants, such as alcohol ethoxylates and alkyl sulphates.
  • a combination of alkyl naphthalene sulfonates and oleoyl sarcosinates provide improved stain removal efficacy for laundry detergent products.
  • the alkyl naphthalene sulfonates and oleoyl sarcosinate surfactant combination of the present invention can be also used in combination with a source of active oxygen, such as sodium percarbonate, and bleach activators, such as TAED.
  • Other ingredients that can be used include polymers, chelating agents, fillers, solvents, enzymes, fragrances and other minor components such as preservatives, dyes, thickeners and anti foaming agents.
  • Actives present in the detergent formulations for use in the invention include an one or more of the following:
  • Alkyl sulphate surfactants for use herein are those according to the formula R 2 SO 4 M wherein R 2 represents a saturated or unsaturated alkyl group containing from 9 to 30 carbon atoms, preferably from 9 to 18 carbon atoms, more preferably from 9 to 14, even more preferably from 9 to 12 and most preferably 10.
  • the alkyl group can be in straight or branched configuration, and preferably in straight configuration.
  • M is H or a cation, e.g., an alkali metal cation (e.g., sodium, potassium, lithium, calcium, magnesium) or ammonium or substituted ammonium cations.
  • substituted ammonium cations include methyl-, dimethyl-, trimethylammonium and quaternary ammonium cations, such as tetramethylammonium, dimethyl piperidinium and cations derived from alkanolamines such as ethylamine, diethylamine, triethylamine, and mixtures thereof.
  • Suitable examples are sodium, potassium, ammonium nonyl sulphate, decyl sulphate, dodecyl sulphate and/or octyl decyl sulphate.
  • sodium decyl sulphate is commercially available from ALLBRIGHT & WILLSON under the name EMPICOL 0137®.
  • Alkyl naphthalene sulfonate anionic surfactants are described in the formula below: wherein R is a straight chain or branched alkyl chain having from about 1 to about 25 carbon atoms, saturated or unsaturated, and the longest linear portion of the alkyl chain is 15 carbon atoms or less on the average, M is a cation capable of washing the compound more water soluble than the free acid especially preferred is an alkali metal (such as sodium or magnesium), or ammonium or substituted ammonium preferred cation.
  • R is a straight chain or branched alkyl chain having from about 1 to about 25 carbon atoms, saturated or unsaturated, and the longest linear portion of the alkyl chain is 15 carbon atoms or less on the average
  • M is a cation capable of washing the compound more water soluble than the free acid especially preferred is an alkali metal (such as sodium or magnesium), or ammonium or substituted ammonium preferred cation.
  • Oleoyl sarcosinates are described below: wherein R and R 1 is a straight chain or branched alkyl chain having from 1 to about 30 carbon atoms, saturated or unsaturated, and the longest average linear portion of the alkyl chain is 15 carbon atoms or less, M is a cation capable of making the compound more water soluble especially than the free acid, especially preferred is an alkali metal (such as sodium, potassium or magnesium), or ammonium or substituted ammonium cation, NRx and x is from 0 to about 4.
  • Preferred total level of surfactant is in the range from 0.01 to 50% wt, ideally 0.1 to 30% wt and preferably 0.5 to 10% wt. Additional nonionic and anionic surfactants can be used.
  • the nonionic surfactant is preferably a surfactant having a formula RO(CH2CH2O)nH wherein R is a mixture of linear, even carbon-number hydrocarbon chains ranging from C12H25 to C16H33 and n represents the number of repeating units and is a number of from about 1 to about 12.
  • R is a mixture of linear, even carbon-number hydrocarbon chains ranging from C12H25 to C16H33 and n represents the number of repeating units and is a number of from about 1 to about 12.
  • examples of other non-ionic surfactants include higher aliphatic primary alcohol containing about twelve to about 16 carbon atoms which are condensed with about three to thirteen moles of ethylene oxide.
  • nonionic surfactants include primary alcohol ethoxylates (available under the Neodol tradename from Shell Co.), such as C11 alkanol condensed with 9 moles of ethylene oxide (Neodol 1-9), C12-13 alkanol condensed with 6.5 moles ethylene oxide (Neodol 23-6.5), C12-13 alkanol with 9 moles of ethylene oxide (Neodol 23-9), C12-15 alkanol condensed with 7 or 3 moles ethylene oxide (Neodol 25-7 or Neodol 25-3), C14-15 alkanol condensed with 13 moles ethylene oxide (Neodol 45-13), C9-11 linear ethoxylated alcohol, averaging 2.5 moles of ethylene oxide per mole of alcohol (Neodol 91-2.5), and the like.
  • Neodol tradename available under the Neodol tradename from Shell Co.
  • nonionic surfactants suitable for use in the present invention include ethylene oxide condensate products of secondary aliphatic alcohols containing 11 to 18 carbon atoms in a straight or branched chain configuration condensed with 5 to 30 moles of ethylene oxide.
  • examples of commercially available non-ionic detergents of the foregoing type are C11-15 secondary alkanol condensed with either 9 moles of ethylene oxide (Tergitol 15-S-9) or 12 moles of ethylene oxide (Tergitol 15-S-12) marketed by Union Carbide, a subsidiary of Dow Chemical.
  • Octylphenoxy polyethoxyethanol type nonionic surfactants for example, Triton X-100, a's well as amine oxides can also be used as a nonionic surfactant in the present invention.
  • linear primary alcohol ethoxylates are available under the Tomadol tradename such as, for example, Tomadol 1-7, a C11 linear primary alcohol ethoxylate with 7 moles EO; Tomadol 25-7, a C12-C15 linear primary alcohol ethoxylate with 7 moles EO; Tomadol 45-7, a C14-C15 linear primary alcohol ethoxylate with 7 moles EO; and Tomadol 91-6, a C9-C11 linear alcohol ethoxylate with 6 moles EO.
  • Tomadol 1-7 a C11 linear primary alcohol ethoxylate with 7 moles EO
  • Tomadol 25-7 a C12-C15 linear primary alcohol ethoxylate with 7 moles EO
  • Tomadol 45-7 a C14-C15 linear primary alcohol ethoxylate with 7 moles EO
  • Tomadol 91-6 a C9-C11 linear alcohol ethoxylate with 6 moles EO.
  • nonionic surfactants are amine oxides, alkyl amide oxide surfactants.
  • Preferred anionic surfactants are frequently provided as alkali metal salts, ammonium salts, amine salts, aminoalcohol salts or magnesium salts.
  • Contemplated as useful are one or more sulfate or sulfonate compounds including: alkyl benzene sulfates, alkyl sulfates, alkyl ether sulfates; alkylamidoether sulfates, alkylaryl polyether sulfates, monoglyceride sulfates, alkylsulfonates, alkylamide sulfonates, alkylarylsulfonates, olefinsulfonates, paraffin sulfonates, alkyl sulfosuccinates, alkyl ether sulfosuccinates, alkylamide sulfosuccinates, alkyl sulfosuccinamate, alkyl sulfoacetates, alkyl
  • a super wetting agent is capable of reducing the surface tension in water at values below 25 mN/m, in the range between 18 and 25 mN/m at concentrations of 0.0001-1%wt, preferably between 0.001 and 0.1%wt.
  • Preferred levels in the cleaning composition are between 0.01 and 10%wt.
  • super wetting agents of this invention are silicone glycol copolymers and flurosurfactants.
  • the silicone glycol copolymers are described by the following formula: Where X, Y, m and n are each a whole number ranging from 0 to 25, provided that X or Y is at least 1.
  • X is between 0-10 and y, m and n are each preferably between 0-5.
  • R and R' are straight chain or branched alkyl chain having from about 1 to about 25 carbon atoms, saturated or unsaturated, and the longest linear portion of the alkyl chain is 15 carbon atoms or less on the average.
  • the fluorinated surfactant is described in the following formulae: F(CF 2 ) n -CH 2 CH 2 S-CH 2 CH 2 -COOM F(CF 2 ) n -N(CH 3 )(CH 2 ) 3 -(CH 2 CH 2 O) x OSO 2 M CF 3 (CF 2 CF 2 ) n (CFCF) m -(CH 2 CH 2 O) x -OPO 3 M 2
  • n, m and x are integers having a value from 0 to 15; preferred values are between 1 and 12.
  • M is a cation which makes the compound water soluble especially an alkali metal such as sodium or magnesium, ammonium or substituted ammonium cation.
  • Suitable level of oxygen bleaches is in the range from 0.01 to 80% wt, preferred level is between 10 and 70% wt, ideally 30 to 60% wt.
  • active oxygen concentration refers to the percentage concentration of elemental oxygen, with an oxidation number zero, that being reduced to water would be stoichiometrically equivalent to a given percentage concentration of a given peroxide compound, when the peroxide functionality of the peroxide compound is completely reduced to oxides.
  • the active oxygen sources according to the present invention increase the ability of the compositions to remove oxidisable stains, to destroy malodorous molecules and to kill germs.
  • the concentration of available oxygen can be determined by methods known in the art, such as the iodimetric method, the permanganometric method and the cerimetric method. Said methods and the criteria for the choice of the appropriate method are described for example in " Hydrogen Peroxide", W. C. Schumo, C. N. Satterfield and R. L. Wentworth, Reinhold Publishing Corporation, New York, 1955 and " Organic Peroxides", Daniel Swern, Editor Wiley Int. Science, 1970 .
  • Suitable organic and inorganic peroxides for use in the compositions according to the present invention include diacyl and dialkyl peroxides such as dibenzoyl peroxide, dilauroyl peroxide, dicumyl peroxide, persulphuric acid and mixtures thereof.
  • Suitable preformed peroxyacids for use in the compositions according to the present invention include diperoxydodecandioic acid DPDA, magnesium perphthalatic acid, perlauric acid, perbenzoic acid, diperoxyazelaic acid and mixtures thereof.
  • Peroxygen bleaching actives useful for this invention are: percarbonates, perborates, peroxides, peroxyhydrates, persulfates.
  • Preferred compound is sodium percarbonate and especially the coated grades that have better stability.
  • the percarbonate can be coated with silicates, borates, waxes, sodium sulfate, sodium carbonate and surfactants cleaning at room temperature.
  • compositions may additionally comprise from 0% to 30%wt, preferably from 2% to 20%wt of peracid precursors, i.e. compounds that upon reaction with hydrogen peroxide product peroxyacids.
  • peracid precursors suitable for use in the present invention can be found among the classes of anhydrides, amides, imides and esters such as acetyl triethyl citrate (ATC) described for instance in EP 91 87 0207 , tetra acetyl ethylene diamine (TAED), succinic or maleic anhydrides.
  • ATC acetyl triethyl citrate
  • TAED tetra acetyl ethylene diamine
  • the detergent composition comprises contains at least one builders or a combination of them from 0.01 to 80% wt, preferably from 0.1 to 50% wt.
  • Polycarboxylates containing three carboxy groups include, in particular, water-soluble citrates, aconitrates and citraconates as well as succinate derivates such as the carboxymethloxysuccinates described in GB-A-1,379,241 , lactoxysuccinates described in GB-A-1,389,732 , and aminosuccinates described in NL-A-7205873 , and the oxypolycarboxylate materials such as 2-oxa-1,1,3-propane tricarboxylates described in GB-A-1,387,447 .
  • Polycarboxylate containing four carboxy groups include oxydisuccinates disclosed in GB-A-1,261,829 , 1,1,2,2-ethane tetracarboxylates, 1,1,3,3-propane tetracarboxylates and 1,1,2,3-propane tetracarobyxlates.
  • Polycarboxylates contining sulfo substituents include the sulfosuccinate derivatives disclosed in GB-A-1,398,421 , GB-A-1,398,422 and US-A-3,936448 , and the sulfonated pyrolsed citrates described in GB-A-1,439,000 .
  • Alicylic and heterocyclic polycarboxylates include cyclopentane-cis,cis,cis-tetracarboxylates, cyclopentadienide pentacarboxylates, 2,3,4,5,6-hexane-hexacarboxylates and carboxymethyl derivates of polyhydric alcohols such as sorbitol, mannitol and xylitol.
  • Aromatic polycarboxylates include mellitic acid, pyromellitic acid and the phthalic acid derivatives disclosed in GB-A-1,425,343 .
  • the preferred polycarboxylates are hydroxycarboxylates containing up to three carboxy groups per molecule, more particularly citrates.
  • Suitable polymer water-soluble compounds include the water soluble monomeric polycarboxylates, or their acid forms, homo or copolymeric polycarboxylic acids or their salts in which the polycarboxylic acid comprises at least two caroxylic radicals separated from each other by not more than two carbon atoms, carbonates, bicarbonates, borates, phosphates, and mixtures of any of thereof.
  • the carboxylate or polycarboxylate builder can be monomeric or oligomeric in type although monomeric polycarboxylates are generally preferred for reasons of cost and performance.
  • Suitable carboxylates containing one carboxy group include the water soluble salts of lactic acid, glycolic acid and ether derivatives thereof.
  • Polycarboxylates containing two carboxy groups include the water-soluble salts of succinic acid, malonic acid, (ethylenedioxy) diacetic acid, maleic acid, diglycolic acid, tartaric acid, tartronic acid and fumaric acid, as well as the ether carboxylates and the sulfinyl carboxylates.
  • Polycarboxylates containing three carboxy groups include, in particular, water-soluble citrates, aconitrates and citraconates as well as succinate derivates such as the carboxymethloxysuccinates described in GB-A-1,379,241 , lactoxysuccinates described in GB-A-1,389,732 , and aminosuccinates described in NL-A-7205873 , and the oxypolycarboxylate materials such as 2-oxa-1,1,3-propane tricarboxylates described in GB-A-1,387,447 :
  • Polycarboxylate containing four carboxy groups include oxydisuccinates disclosed in GB-A-1,261,829 , 1,1,2,2-ethane tetracarboxylates, 1,1,3,3-propane tetracarboxylates and 1,1,2,3-propane tetracarobyxlates.
  • Polycarboxylates contining sulfo suibstituents include the sulfosuccinate derivatives disclosed in GB-A-1,398,421 , GB-A-1,398,422 and US-A-3,936448 , and the sulfonated pyrolsed citrates described in GB-A-1,439,000 .
  • Alicylic and heterocyclic polycarboxylates include cyclopentane-cis,cis,cis-tetracarboxylates, cyclopentadienide peritacarboxylates, 2,3,4,5,6-hexane - hexacarboxylates and carboxymethyl derivates of polyhydric alcohols such as sorbitol, mannitol and xylitol.
  • Aromatic polycarboxylates include mellitic acid, pyromellitic acid and the phthalic acid derivatives disclosed in GB-A-1,425,343 .
  • the preferred polycarboxylates are hydroxycarboxylates containing up to three carboxy groups per molecule, more particularly citrates.
  • More preferred polymers are homo-polymers, copolymers and multiple polymers of acrylic, flourinated acrylic, sulfonated styrene, maleic anhydride, metacrylic, iso-butylene, styrene and ester monomers.
  • these polymers are Acusol supplied from Rohm & Haas, Syntran supplied from Interpolymer and Versa and Alcosperse series supplied from Alco Chemical, a National Starch & Chemical Company.
  • bicarbonate and carbonate builders are the alkaline earth and the alkali metal carbonates, including sodium and calcium carbonate and sesquicarbonate and mixtures thereof.
  • carbonate type builders are the metal carboxy glycine and metal glycine carbonate.
  • builders are compounds that sequester metal ions associated with the hardness of water, e.g. calcium and magnesium
  • chelating agents are compounds that sequester transition metal ions capable of catalysing the degradtaion of oxygen bleach systems.
  • certain compounds may have the ability to do perform both functions.
  • Suitable chelating agents to be used herein include chelating agents selected from the group of phosphonate chelating agents, amino carboxylate chelating agents, polyfunctionally-substituted aromatic chelating agents, and further chelating agents like glycine, salicylic acid, aspartic acid, glutamic acid, malonic acid, or mixtures thereof. Chelating agents when used, are typically present herein in amounts ranging from 0.01% to 50%wt of the total composition and preferably from 0.05% to 10%wt.
  • Suitable phosphonate chelating agents to be used herein may include ethydronic acid as well as amino phosphonate compounds, including amino alkylene poly (alkylene phosphonate), alkali metal ethane 1-hydroxy diphosphonates, nitrilo trimethylene phosphonates, ethylene diamine tetra methylene phosphonates, and diethylene triamine penta methylene phosphonates.
  • the phosphonate compounds may be present either in their acid form or as salts of different cations on some or all of their acid functionalities.
  • Preferred phosphonate chelating agents to be used herein are diethylene triamine penta methylene phosphonates. Such phosphonate chelating agents are commercially available from Monsanto under the trade name DEQUEST TM.
  • Polyfunctionally-substituted aromatic chelating agents may also be useful in the compositions herein. See U.S. patent 3,812,044, issued May 21, 1974, to Connor et al .
  • Preferred compounds of this type in acid form are dihydroxydisulfobenzenes such as 1,2-dihydroxy-3,5-disulfobenzene.
  • a preferred biodegradable chelating agent for use herein is ethylene diamine N,N'-disuccinic acid, or alkali metal, or alkaline earth, ammonium or substitutes ammonium salts thereof or mixtures thereof.
  • Ethylenediamine N,N'-disuccinic acids, especially the (S,S) isomer have been extensively described in US patent 4, 704, 233, November 3, 1987, to Hartman and Perkins .
  • Ethylenediamine N,N'-disuccinic acids is, for instance, commercially available under the tradename ssEDDS TM from Palmer Research Laboratories.
  • Suitable amino carboxylates to be used herein include ethylene diamine tetra acetates, diethylene triamine pentaacetates, diethylene triamine pentaacetate (DTPA),N-hydroxyethylethylenediamine triacetates, nitrilotriacetates, ethylenediamine tetrapropionates, triethylenetetraaminehexa-acetates, ethanol-diglycines, propylene diamine tetracetic acid (PDTA) and methyl glycine diacetic acid (MGDA), both in their acid form, or in their alkali metal, ammonium, and substituted ammonium salt forms.
  • PDTA propylene diamine tetracetic acid
  • MGDA methyl glycine diacetic acid
  • Particularly suitable amino carboxylates to be used herein are diethylene triamine penta acetic acid, propylene diamine tetracetic acid (PDTA) which is, for instance, commercially available from BASF under the trade name Trilon FS TM and methyl glycine di-acetic acid (MGDA).
  • PDTA propylene diamine tetracetic acid
  • MGDA methyl glycine di-acetic acid
  • Fillers useful for the present invention are sodium chloride, bentonite, zeolites, citrates, talc and metal sulfate salts as sodium, calcium and aluminium sulfates. They can be used at a level from 0.01 to 60%wt, preferably between 0.1 to 30%wt.
  • Solvents can be used at levels of 0.01 to 50%wt, preferred level is between 0.1-5%wt.
  • the solvent constituent may include one or more alcohol, glycol, acetate, ether acetate, glycerol, polyethylene glycol with molecular weight ranging from 200 to 10000, silicones or glycol ethers.
  • Exemplary alcohols useful in the compositions of the invention include C2-C8 primary and secondary alcohols which may be straight chained or branched, preferably pentanol and hexanol.
  • Preferred solvents for the invention are glycol ethers and examples include those glycol ethers having the general structure.
  • Preferred solvents for the invention are glycol ethers and examples include those glycol ethers having the general structure R a -O-[CH 2 -CH(R)-(CH 2 )-O] n -H, wherein Ra is C 1-20 alkyl or alkenyl, or a cyclic alkane group of at least 6 carbon atoms, which may be fully or partially unsaturated or aromatic; n is an integer from 1 to 10, preferably from 1 to 5; each R is selected from H or CH 3 ; and a is the integer 0 or 1.
  • Specific and preferred solvents are selected from propylene glycol methyl ether, dipropylene glycol methyl ether, tripropylene glycol methyl ether, propylene glycol n-propyl ether, ethylene glycol n-butyl ether, diethylene glycol n-butyl ether, diethylene glycol methyl ether, propylene glycol, ethylene glycol, isopropanol, ethanol, methanol, diethylene glycol monoethyl ether acetate, and particularly useful are, propylene glycol phenyl ether, ethylene glycol hexyl ether and diethylene glycol hexyl ether.
  • fragrance selected from a list consisting fragrance, anticaking agent (such as sodium xylene sulfonate and magnesium sulfate), dye, enzyme are present at levels of up to 5%wt preferably less then 1%wt.
  • anticaking agent such as sodium xylene sulfonate and magnesium sulfate
  • dye such as sodium xylene sulfonate and magnesium sulfate
  • the device has been compared with other foam making equipment in terms of time for foam preparation, foam consistency and convenience.
  • the gadget efficacy in foam application onto the stain and cleaning performance have been showed against no gadget usage.
  • the foam has been prepared by dissolving in warm water Oxi Action Max powder, which contains foaming surfactants. About 15 grams of powder has been used with 100 ml of warm water.
  • the solution can be prepared in a 300-500 ml open container.
  • the different devices are compared for preparing the foam.
  • the reference is the spoon that can be used as mixing/aerating device.
  • the devices are rated in terms of timing necessary to prepare the foam, consistency of the foam, convenience in preparing the foam and cost: Convenience Rating Description Consistency rating Foam consistency 1 Not at all convenient 1 Much too thin/runny 2 Not very convenient 2 A little too thin/runny 3 Neither /nor 3 Just right 4 Quite convenient 4 A little too thick 5 Extremely convenient 5 Much too thick
  • the stain removal evaluation of standard soils has been done considering Y, the reflectance value has been used for performance evaluation.
  • the X Y Z scale has been used with a spectrophotometer with the UV-filter at 460 nm.
  • Y 100 means a complete stain removal. Standard prepared stains have been used for the test.
  • the cleaning procedure is done by applying the cream to the stain, leave it for 10 minutes and then rinsing with water.
  • the cream application is done with the gadget and then three scrubbing actions are done back and forward with the cellular plastic device.
  • the cellular plastic device described for preparing the foam was compared to the simple mixing with the spoon, with a hand propeller system, with a cappuccino cream maker', with a shaker and with a battery powered mixer. In all cases 15 grams of Oxi Action Max powder has been dissolved in 100 ml of warm water, prior to using the devices.
  • the cellular plastic device cleaning performance has been compared to just applying the foam onto the stain with a spoon and then rinsing.
  • Table 1 Product Gadget name Description Ex 1 cellular plastic device Handle composed of two pieces, made of polyethylene, disk made of polystyrene and polyurethane/polyester cellular plastic Ref 1 Spoon Stainless steel spoon.
  • Ref 2 Propeller A plastic handle with a propeller made of polypropylene.
  • Ref 3 Cappuccino cream maker Glass container with a piston fitting with the container. At the extremity of the piston a filter is applied. This system is used up and down.
  • Foams were prepared by dissolving 15 g in 100 ml of warm water, using Ex 1 and Ref from 1 to 5 gadgets.
  • the cellular sponge gadget is a manual system that has been rated as the more convenient among the different manual tools, it is very effective in preparing the foam, short time and good foam consistency.
  • the cellular plastic device is in addition quite cheap and it can be used also for foam application onto the stain and for improving the cleaning performance.
  • the cellular plastic device of the present invention was been used to prepare the foam by dissolving 15 g of Vanish Oxi Action Max in 100 ml of water and compared to the use of the spoon. In both cases two grams of the foam were applied onto each standard soiled swatch. In the case of the cellular plastic device 3 scrubbing back and forwards have been conducted on each swatch. Then the foam was left for 10 minutes before rinsing with cold water. After 10 minutes of the foam action all samples were rinsed. For each device /stain for replicates were performed and the values reported in the table below are the average.
  • the stable foam is prepared by dissolving the cleaning formulation , from 1 to 50 grams in 100 ml of water, preferably between 10 and 30 grams into 100ml of water.
  • the stable foam is formed due to the source of active oxygen evolving oxygen within a surfactant.
  • the stain removal evaluation of standard soils has been done considering Y, the reflectance value has been used for performance evaluation.
  • the X Y Z scale has been used with a spectrophotometer with the UV-filter at 460 nm.
  • Y 100 means a complete stain removal.
  • the cleaning procedure is performed by applying the foam to the stain, leave it for 10 minutes and then rinsing with water.
  • the colour safety has been measured by instrumental readings.
  • ⁇ E [ ( L c * - L w * ) 2 + ( a ⁇ * c - a ⁇ * w ⁇ ) 2 + ( b ⁇ * c - b ⁇ * w ⁇ ) 2 ] 1 / 2
  • ⁇ E 0 means no colour damage and in general the lower the value the lower the colour damage.
  • the foams described in this invention were prepared by using powder formulations easily produced by mixing in a suitable container the ingredients.
  • the foam was prepared by dissolving 15 grams of the cleaning formulation of this invention in 100 ml of warm water (40°C) and mixing for 3 minutes. The foam was applied for 10 minutes before rinsing with cold water (20°C).
  • Product available on the market, Oxy Magic from Dr. Beckmann and Oxiclean new from Orange glo were used as references. These two products have been tested with the same procedure even if it was not possible to make a stable foam, but only a solution or a slightly foaming solution.
  • Foams were prepared by using Ex 1, 2 and 3, for all dissolving 15 g and 30 grams in 100 ml of warm water and mixing for 3 minutes.
  • the formulation of present invention have been used as a foam by dissolving 15 g in 100 ml of water and applying 2 ml of the foam onto each stain. After 10 minutes of contact with the foam all samples were rinsed. The reference products were used at the same dosage. Four replicates were made and the values reported in the table below is the average.
  • a value of delta E below 3.0 can be considered as no colour damage.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Wood Science & Technology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Textile Engineering (AREA)
  • Detergent Compositions (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
  • Glass Compositions (AREA)
  • Cleaning Or Drying Semiconductors (AREA)

Claims (9)

  1. Procédé pour éliminer les taches sur une surface souple, le procédé comprenant la dissolution d'une formulation nettoyante solide dans de l'eau, la formulation comprenant une source d'oxygène actif et au moins un agent tensioactif avec de l'eau pour former une mousse stable, l'application de la mousse directement sur la surface souple tachée et le nettoyage de l'étoffe dans une machine à laver le linge, avec ou sans addition d'un détergent pour étoffes, ou le mélange à de l'eau de la formulation de mousse stable de la surface souple.
  2. Procédé suivant la revendication 1, dans lequel la mousse stable est engendrée par un dispositif d'aération.
  3. Procédé suivant la revendication. 1, dans lequel le dispositif est un fouet.
  4. Procédé suivant la revendication 2, dans lequel le dispositif d'aération est sous forme d'une matière plastique cellulaire.
  5. Procédé suivant la revendication 4, dans lequel le dispositif d'aération est fixé le long d'au moins une partie d'une surface à un support rigide.
  6. Procédé suivant la revendication 5, dans lequel le dispositif d'aération comporte un manche.
  7. Procédé suivant la revendication 6, dans lequel le manche est fixé à la face opposée du support rigide fixé à l'éponge cellulaire.
  8. Procédé suivant l'une quelconque des revendications précédentes, dans lequel la surface souple est une étoffe.
  9. Procédé suivant l'une quelconque des revendications précédentes, dans lequel est mise en oeuvre une étape ultérieure supplémentaire consistant à frotter l'étoffe tachée.
EP04768525A 2003-10-07 2004-09-16 Procede de nettoyage Expired - Lifetime EP1670890B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB0323394A GB0323394D0 (en) 2003-10-07 2003-10-07 Method of removing fabric stains
GB0409178A GB2413336A (en) 2004-04-24 2004-04-24 Method of cleaning using a foam and an aeration device
PCT/GB2004/003979 WO2005040326A1 (fr) 2003-10-07 2004-09-16 Procede de nettoyage

Publications (2)

Publication Number Publication Date
EP1670890A1 EP1670890A1 (fr) 2006-06-21
EP1670890B1 true EP1670890B1 (fr) 2007-08-22

Family

ID=34525041

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04768525A Expired - Lifetime EP1670890B1 (fr) 2003-10-07 2004-09-16 Procede de nettoyage

Country Status (8)

Country Link
EP (1) EP1670890B1 (fr)
AT (1) ATE371012T1 (fr)
AU (1) AU2004284267B2 (fr)
BR (1) BRPI0415071B1 (fr)
DE (1) DE602004008492T2 (fr)
ES (1) ES2288269T3 (fr)
MX (1) MXPA06003969A (fr)
WO (1) WO2005040326A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB201310507D0 (en) * 2013-06-13 2013-07-24 Reckitt Benckiser Brands Ltd Product
WO2018083096A1 (fr) 2016-11-01 2018-05-11 Koninklijke Philips N.V. Dispositif portable de détachage

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1418889A (en) * 1972-12-20 1975-12-24 Martin P Paint applicators
US4106153A (en) * 1975-07-15 1978-08-15 Lemelson Jerome H Cleaning appliance
US4232420A (en) * 1979-04-23 1980-11-11 Sam Schuster Scouring pad handle
PH23834A (en) * 1985-12-02 1989-11-23 Willson Co Ltd Brush for application of wax
US5866524A (en) * 1994-03-30 1999-02-02 Procter & Gamble Company Foamed cleaning compositions and method of treating textile fabrics
NZ270287A (en) * 1995-01-05 1998-06-26 Jason Robert Jones Sanding aid comprises a handle portion with attached pad and abrasive sheet is releasably attached to the pad
DE19644653A1 (de) * 1996-10-26 1998-04-30 Diversey Gmbh Verfahren und Vorrichtung zur Reinigung von mit Fett-, Stärke- und/oder Eiweißschmutz hochbelasteten Flächen, insbesondere in der Lebensmittelindustrie
US6023810A (en) * 1998-07-28 2000-02-15 Gessert; Roy E. Grill cleaning apparatus incorporating detachable handle and holder for removable scouring pad
US6403547B1 (en) * 1998-10-30 2002-06-11 The Procter & Gamble Company Process of cleaning carpets with a composition comprising peroxygen bleach
AU2210300A (en) * 1998-12-21 2000-07-12 Wagner Spray Tech Corporation Foam backing for sponge pad paint applicators
US20020001636A1 (en) * 2000-06-30 2002-01-03 Greg Holloway Surface texture applicator
US6371675B1 (en) * 2000-12-20 2002-04-16 Becton, Dickinson And Company Skin disinfectant applicator
US20020076258A1 (en) * 2000-12-20 2002-06-20 Crosby Cynthia T. Skin disinfectant applicator

Non-Patent Citations (1)

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Title
None *

Also Published As

Publication number Publication date
ATE371012T1 (de) 2007-09-15
EP1670890A1 (fr) 2006-06-21
AU2004284267A1 (en) 2005-05-06
DE602004008492D1 (de) 2007-10-04
AU2004284267B2 (en) 2010-02-04
WO2005040326A1 (fr) 2005-05-06
DE602004008492T2 (de) 2008-05-15
MXPA06003969A (es) 2006-06-27
BRPI0415071A (pt) 2006-11-28
BRPI0415071B1 (pt) 2014-12-30
ES2288269T3 (es) 2008-01-01

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