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WO1998028399A1 - Ameliorations ayant trait au nettoyage de surfaces - Google Patents

Ameliorations ayant trait au nettoyage de surfaces Download PDF

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Publication number
WO1998028399A1
WO1998028399A1 PCT/EP1997/006960 EP9706960W WO9828399A1 WO 1998028399 A1 WO1998028399 A1 WO 1998028399A1 EP 9706960 W EP9706960 W EP 9706960W WO 9828399 A1 WO9828399 A1 WO 9828399A1
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WO
WIPO (PCT)
Prior art keywords
sponge
surfactant
pouch
containing composition
alkyl
Prior art date
Application number
PCT/EP1997/006960
Other languages
English (en)
Inventor
George Kerr Rennie
Patricia Revell
Philip John Sams
Original Assignee
Unilever Plc
Unilever N.V.
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 Plc, Unilever N.V. filed Critical Unilever Plc
Priority to BR9714157-7A priority Critical patent/BR9714157A/pt
Priority to CA002274578A priority patent/CA2274578A1/fr
Priority to AU57566/98A priority patent/AU721828B2/en
Priority to EP97953791A priority patent/EP0946707A1/fr
Priority to PL97334123A priority patent/PL334123A1/xx
Publication of WO1998028399A1 publication Critical patent/WO1998028399A1/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
    • C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
    • C11D17/04—Detergent materials or soaps characterised by their shape or physical properties combined with or containing other objects
    • 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
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47K—SANITARY EQUIPMENT NOT OTHERWISE PROVIDED FOR; TOILET ACCESSORIES
    • A47K7/00—Body washing or cleaning implements
    • A47K7/02—Bathing sponges, brushes, gloves, or similar cleaning or rubbing implements
    • A47K7/03—Bathing sponges, brushes, gloves, or similar cleaning or rubbing implements containing soap or other cleaning ingredients, e.g. impregnated
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L13/00—Implements for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L13/10—Scrubbing; Scouring; Cleaning; Polishing
    • A47L13/16—Cloths; Pads; Sponges
    • A47L13/17—Cloths; Pads; Sponges containing cleaning agents
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L17/00—Apparatus or implements used in manual washing or cleaning of crockery, table-ware, cooking-ware or the like
    • A47L17/04—Pan or pot cleaning utensils
    • A47L17/08—Pads; Balls of steel wool, wire, or plastic meshes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/02—Cosmetics or similar toiletry preparations characterised by special physical form
    • A61K8/0208—Tissues; Wipes; Patches
    • 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
    • C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
    • C11D17/04—Detergent materials or soaps characterised by their shape or physical properties combined with or containing other objects
    • C11D17/048—Soap or detergent bars or cakes with an inner core consisting of insoluble material
    • 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

Definitions

  • the present invention relates to improvements in surface cleaning and will be described with particular reference to hand dish washing and other forms of hard surface cleaning, although the invention is also applicable to skin cleaning.
  • EP 0353013 (Unilever: 1988) discloses a wiping article which comprises two porous substrate layers sandwiching a body of surfactant
  • US 3949137 (Akrongold: 1974) discloses a gel-containing pre-impregnated sponge.
  • One difficulty with the above- mentioned articles is that when the surfactant is exhausted the article must be replaced as it is difficult to recharge with surfactant without the use of an industrial process which the common user of the product is not in a position to perform.
  • a sponge is attached to a hollow handle which acts as a container for a surfactant . The surfactant flows from the handle into the sponge during use providing a continuous supply of surfactant during the cleaning process.
  • GB 0979735 (Schermuly: 1963) discloses a cellulose sponge with an aperture therein to receive and retain 'one or more pieces of soap which might otherwise have been discarded', together with a plug to close the aperture.
  • GB 1171180 (Sponcel Limited; 1965), GB 1216843 (Howlan Investments: 1967) and GB 1245242 (Brennan: 1967) all disclose how a source of detergent can be included in a sponge by means of a recess which is cut into a sponge to receive a solid block of surfactant material or by forming a sponge around a detergent-containing body. These contructions are not refillable.
  • US 4415288 discloses a medical scrub (which is shown in the figures as looking like a sponge with a slit in the side) , together with a device for refilling an aperture in the scrub with a fluid, which can contain soap and/or antiseptic solution.
  • a dilution-thickening composition to assist retention of the cleaning composition on a sponge or other such carrier. It is known to carry out a cleaning process which comprises the steps of: a) treating an adsorbent carrier with a surfactant composition which is capable of thickening on the addition of water,
  • surfactant carriers such as sponges
  • soil particularly greasy soil. This can present the difficulty that during prolonged use the carrier will become coated with grease and will consequently re-deposit grease on surfaces which are being cleaned thus making the cleaning process far less efficient and eventually, quite pointless.
  • a shaped article comprising a sponge body having a first surface defining a pouch therein, said pouch being adapted to receive and retain a surfactant-containing composition, and,
  • a method of surface cleaning using a sponge body having a first surface defining a pouch therein, said pouch being adapted to receive and retain a surfactant-containing composition which comprises the steps of:
  • a particular advantage of the present invention is that component release from the sponge is retarded by the use of a pouch and the composition. A benefit of this is that sufficient surfactant is retained in the sponge for effective cleaning to be performed for a longer time. It is also believed that, the maintenance of a relatively high surfactant concentration within the body of the sponge, replenished from the pouch, significantly reduces the tendency of the sponge to transfer greasy soil between surfaces being cleaned.
  • the surfactant containing composition is of rather simple composition
  • additional benefits accrue when the surfactant containing composition is of a more complex nature.
  • the sponge acts as a filter to remove the larger abrasive particles which would scratch or otherwise damage the surface being cleaned.
  • other particulate forms such as encapsulated perfumes, insoluble bleaches and germicides are incorporated into the surfactant containing compositions the release of these additional components is also retarded and extended.
  • Sponges for use in embodiments of the present invention may be natural or synthetic.
  • synthetic sponges polymeric materials, including polyester and polyurethane are suitable.
  • Property variables include pore size and pore size distribution, pore shape, mechanical strength, compressibility, flexibility and hydrophobicity/ hydrophi1icity.
  • a typical sponge suitable for use in the embodiments of the invention has a distribution of pore sizes and preferably a mean pore size diameter of about 500 +/- 100 microns. This value has been reached by image analysis of several different synthetic sponges, and by making the assumption that the pores are spherical. Some suitable sponges may contain pores up to 3-4 mm in diameter, and sponges may also have pores so small that the image analysis technique could not detect individual pores .
  • the shape of cells within a sponge will depend upon the process of manufacture, and can range from spherical to polyhedral in which the adjoining walls can vary from just above zero to almost 100% of the contact area, i.e. from essentially open meshworks to almost closed cells. Sponges prepared from fibrous materials can have no cells as such but rather comprise a plurality of connected regions through which fluids can pass.
  • the cells in a sponge are preferably substantially intercommunicating, i.e. at least 50% by number of the cells are intercommunicating. It is believed that this allows passage of materials through the body of the sponge, and the pore size is less than or equal to the diameter of the cell.
  • Sponges preferably comprise a harder abrasive layer, which may be, for instance, impregnated or bonded onto the sponge.
  • the abrasive material may be for example a firmer sponge, or synthetic fibres which may be interlinked e.g. Scotchbrite (TM) .
  • TM Scotchbrite
  • Sponges may be hydrophilic or hydrophobic, but preferably the composition of the surface elements of the sponge should be capable of being water wetted. It is advantageous if both hydrophobic and hydrophilic properties were combined in a single sponge such that the area of the sponge that contacted the skin is hydrophobic, whereas the area that contacted other surfaces is hydrophilic. It is believed that this reduces wetness of the hands and thus reduce contact with potentially irritant cleaning formulations thereby increasing the apparent 'mildness' of the cleaning formulation used.
  • Sponges currently sold for use in dish washing operations have average dimensions of 9x6.5x4cm (as length x width x depth) i.e. they are of a size to fit easily in the hand. These often have at least one abrasive surface. More ergonomic versions are available with e.g. grooves for the fingers and these are suitable for use in embodiments of the present invention.
  • the surfactant containing composition can be a solid in the form of a block or powder, a gel or paste, or a liquid, any of which can contain or consist of the particulate phase.
  • a flowable' is used to describe powders and liquids.
  • Compositions for use with embodiments of the present invention are generally flowable.
  • Surfactant content of solid block compositions for use in the method of the present invention is typically 5-20%wt.
  • Surfactant content of gel and paste compositions for use in the method of the present invention is typically 3-40%wt.
  • Surfactant content of the flowable compositions for use in the method of the present invention is typically greater than l%wt, preferably 2-50%wt, most preferably 2-10%wt
  • the surfactants include at least one anionic, zwitterionic or a photeric surfactant.
  • Particularly preferred surfactants include one or more of ethoxylated alkyl ether sulphate, lauryl sulphate and amido propyl betaine.
  • alkyl ether sulphates of the general formula:
  • R is C 8 _ 18 alkyl and n is 1 - 5.
  • R is lauryl- .
  • the alkyl ether sulphate surfactants are preferably present at a level of 2-30%wt.
  • a particularly preferred surfactant is lauryl ammonium ether sulphate.
  • this component is present in the formulations of the invention at levels of 2-20%wt, more preferably 3-7%wt on product for relatively dilute products or 8-18%wt for concentrates.
  • anionic surfactant in combination with or to the exclusion of the ether sulphate surface active agents .
  • Anionic surfactants which may be used include alkylaryl sulphonates, alcohols sulphates, phosphate esters, sulphosuccinates, sulphosuccinamates, alkane sulphonates, olefin sulphonates, petroleum sulphonates, sarcosinates, taurates, isethionates, and soaps.
  • anionic surfactants include those sold under the trade names Eltesol SX30[TM] (sodium xylene sulphonate), Empicol L2 [TM] (sodium lauryl sulphate), Triton H55 [TM] (potassium phosphate ester), Marlinat DF8 (sodium sulphosuccinate) , Hostapur SAS 30X[TM] (sodium alkane sulphonate), Hostapur OS[TM] (sodium olefin sulphonate), Petronate S[TM] (sodium petroleum sulphonate), Hamposyl L30[TM] (sodium lauroyl sarcosinate) , Fenopon T33 [TM] (sodium N-methyl-N-oleyl taurate) , and Fenopon AC 78 [TM] (sodium coconut isethionate) .
  • Eltesol SX30[TM] sodium xylene sulphon
  • alcohol sulphates particularly C 8 _ l ⁇ alcohol sulphates and alkyl benezene sulphonates .
  • Typical levels of alcohol sulphates in compositions of the present invention range from 5-15%wt on product, more preferably 6-10%wt on product.
  • Typical levels of alkyl benzene sulphonate in compositions of the present invention range from 10-30% on product.
  • nonionic surfactant in combination with the ether sulphates surface active agents.
  • One particular class of nonionic surfactants for use in combination with the ether sulphate surface active agents comprises the amine oxides of the formula:
  • R j R ⁇ -NO in which R j is a long chain alkyl group, typically containing 8 to 20 carbon atoms; and R 2 and R 3 are the same or different, lower alkyl group, typically containing 1-4 carbon atoms.
  • R j is a long chain alkyl group, typically containing 8 to 20 carbon atoms
  • R 2 and R 3 are the same or different, lower alkyl group, typically containing 1-4 carbon atoms.
  • Particular examples of this class of non-ionic surfactants are alkyl dimethyl amine oxides such as sold under the trade name "Empigen OB" [TM] by Albright & Wilson.
  • nonionic surface active agents comprise polyalkoxylated fatty alcohols and their esters; polyalkoxylated fatty acids; polyalkoxylated alkyl phenols; alkanolamides; polyalkoxylated alkanolamides, glucosides, polyglucosides, sucrose and sugar esters, fatty esters, ethoxylated alkanolamides, ethoxylated long chain amines; alkyl amines, alkyl polyglucosides and alkyl polyglycosides .
  • nonionic surfactants are those sold under the trade names Synperonic A[TM] (alcohol ethoxylates) , Crodet L24 [TM] (polyoxyethylene-24-lauric acid), Synperonic NP[TM] (nonyl phenyl ethoxylates), Empilan CME[TM] (coconut monoethanolamide), Triton CGllO [TM] (alkyl glucoside), Glucam E10 [TM] (10 mole ethoxylate of methyl glucoside), Crodesta SL 40 [TM] (sucrose cocoate) , Empilan MAA[TM] (ethoxylated coconut monoethanolamide), Ethomeen C12 [TM] (ethoxylated coconut amine), and Tagosoft 16B[TM] (cetyl isooctanoate) .
  • Synperonic A[TM] alcohol ethoxylates
  • Crodet L24 [TM] polyoxyethylene-24-lauric acid
  • Suitable amphoteric surfactants for use in combination with the ether sulphate surfactants include alkyl betaines, alkyl aminopropionates, alkyl iminodipropionates; alkyl glycinates; carboxyglycinates; alkyl imidazolines sulphobetaines; alkyl polyaminocarboxylates and polyamphocarboxyglycinates .
  • amphoteric surfactants are those sold under the trade names Tegobetain A4080 [TM] (alkyl dimethyl betaine) , Ampholax XCU[TM] (coco-amphoglycolate) , Amphotensid CT[TM] (alkyl imidazoline based amphoteric), Ampholax XCO 30 [TM] (coco-amphocarboxyglycinate) and Sandobet SC[TM] (cocoamide-sulphobetaine) ; and sodium N-coco- aminopropionate, disodium N-coco-iminodiproprionate, and cocoglycinate .
  • Tegobetain A4080 [TM] alkyl dimethyl betaine
  • Ampholax XCU[TM] coco-amphoglycolate
  • Amphotensid CT[TM] alkyl imidazoline based amphoteric
  • Ampholax XCO 30 [TM] coco-amphocarbox
  • these surfactants are betaines, preferably alkyl amido propyl betaines with an alkyl chain length of C ⁇ -C 18 . Coco amido propyl betaine is particularly preferred. Typical levels of betaine in compositions according to the present invention range from 0.5-5.0%wt, more preferably 1-3%wt on product.
  • Suitable cationic surfactants for use in the concentrates of the invention includes alkyl quaternary ammonium halides; primary, secondary and tertiary amines and their salts; and polyamines .
  • Particular examples of such cationic surfactants are those sold under the trade names Empigen BAC[TM] (alkyl dimethyl benz-alkoniu chloride), Armac 1 [TM] (tallow amine acetate-amine salts), Synprolam 35N3[TM] (N-alkyl propane propane diamine) , and Synprolam 35X10 [TM] (10 mole ethoxylated primary amine) .
  • the surfactant containing composition thickens on dilution with water. This can be achieved by the presence of an electrolyte in the surfactant composition.
  • the compositions of the present invention comprise at least one surfactant whose solution viscosity is strongly influenced by the prevailing electrolyte concentration. While other means by which the viscosity can be increased on dilution are known, the use of an electrolyte is preferred.
  • the thickening of the diluted composition is effected by the presence of selected surface active agents whose thickening effect, in the concentrate, is reduced by the presence of an excess of dissolved electrolyte. Thus, upon dilution of the concentrate, the concentration of dissolved electrolyte is reduced and the surface active agent component is then capable of exerting its thickening effect.
  • the combination of the carrier and the composition is treated with water, either by dipping the combination into water or by the simple expedient of starting with a wet carrier.
  • the electrolyte concentration falls below that which is sufficient to prevent the surfactants from thickening and the viscosity of the surfactant composition rises.
  • this increase in viscosity causes the surfactant and the particulate phase to be retained on the carrier and released over a significantly longer period of time.
  • the surfactants are sensitive to the presence of electrolyte
  • a broad range of electrolytes can be employed, provided that the electrolyte causes thickening of the surfactant at a first concentration and thinning of the surfactant, relative to the viscosity peak at a second, higher concentration .
  • Preferred electrolytes of present inventions are NaCl, MgCl 2 , MgS0 4 and mixtures thereof.
  • Other water-soluble electrolytes may be employed, including builders such as sodium, sodium phosphates and alkali metal silicates.
  • Typical electrolyte concentration is from 4.0 to 30% %w/w, preferred electrolyte concentration is from 4-15 %w/w, particularly preferred concentration is from 4-10% %w/w.
  • the sponge acts as a filter to retain particulate phases within the pouch or the body of the sponge.
  • particulate phases are envisaged in embodiments of the present invention. These preferably comprise abrasives, which are discussed in more detail below, encapsulated perfumes, builders, bleaches and/or microbiocides.
  • Suitable encapsulated perfumes are those available in the marketplace as 'Fresh and Clean' from the 3M company. As will be illustrated below by reference to examples the use of the encapsulated perfumes together with the sponge of the present invention significantly improves the persistence of the perfume.
  • Typical average particle sizes for the particulate phase range from 1mm to 0.1 microns.
  • the particulate phase can be wholly or partly water soluble.
  • Abrasives are optional components of the compositions for use in the method of the present invention. Where abrasives are present the level of abrasive can range from 1-99% of the composition.
  • the particulate abrasive is either insoluble in an aqueous phase or present in such excess that the solubility of the abrasive in an aqueous phase such as will be encountered during the practice of the method of the invention is exceeded and consequently solid abrasive will exist in the composition when the aqueous phase is mixed with the composition.
  • Preferred abrasives for use in general purpose compositions have a Moh hardness below 6 although higher hardness abrasives can be employed for specialist applications.
  • Suitable abrasives can be selected from, particulate zeolites, calcites, silicas, silicates, carbonates, aluminas, bicarbonates, borates, sulphates, and, polymeric materials such as polyethylene. Of these the bicarbonates, borates and sulphates are soluble.
  • Preferred average (weight average) particle sizes for the abrasive fall in the range 0.5-200 microns, with values of around 10-100 microns being preferred. In this range an acceptable compromise between good cleaning behaviour and low substrate damage is achieved.
  • the sponge acts as a filter which prevents larger particles from contacting the surface and causing damage. This enables particles with a higher average particle size to be used.
  • Preferred levels of abrasive range from 5-99wt% on product, preferably in the range 20-40wt%, most preferably around 35wt% for liquid products. Such levels of abrasive give effective cleaning and good rinsing. For powder products moderately high levels of abrasive are used.
  • the most preferred abrasives are calcium carbonate (as calcite) , mixtures of calcium and magnesium carbonates (as dolomite) , sodium hydrogen carbonate, potassium sulphate, zeolite, alumina, hydrated alumina, feldspar, talc and silica. Calcite and dolomite are particularly preferred due to their low cost, hardness and colour.
  • compositions according to the present invention can comprise a solvent.
  • Solvents are an optional component and are not essential to the practice of the present invention.
  • Preferred solvents are selected from: propylene glycol mono n-butyl ether, dipropylene glycol mono n-butyl ether, propylene glycol mono t-butyl ether, dipropylene glycol mono t-butyl ether, diethylene glycol hexyl ether, ethyl acetate, methanol, ethanol, isopropyl alcohol, ethylene glycol monobutyl ether, diethylene glycol monobutyl ether, n-methyl pyrollidone and mixtures thereof.
  • the preferred solvents are propylene glycol mono n-butyl ether, dipropylene glycol mono n-butyl ether, ethanol, isopropyl alcohol, diethylene glycol monobutyl ether and mixtures thereof.
  • compositions of the invention can further comprise other non-essential components selected from the group comprising: colours, whitening agents (such as titanium dioxide) and dyes, foam-control agents, preservatives (such as formaldehyde) and mixtures of one or more thereof.
  • the foam control agents comprise calcium sensitive soaps.
  • Particularly preferred soaps are the C10-C18 saturated or unsaturated fatty acids and salts thereof.
  • Preferred levels of soap range from 0.1-2% of a fatty acid soap having C10-C18 carbon atoms. It is particularly preferred that the ratio of soap to total active should fall into the range: 1:5-1:20.
  • Guar gum is a suitable polymer. Typical inclusion levels of polymer range from 0.001-2%.
  • Hydrotropes are another optional component of the present invention.
  • Ethanol is a suitable hydrotrope as are the xylene, cumeme and benzene sulphonates.
  • ethanol is present at a level of up to 10%wt, preferable up to a level of 6%wt.
  • Further optional components include an alkanolamine, preferably 1-10% of an alkanolamine, with levels of 2-6%wt being particularly preferred.
  • alkanolamines include: 2-amino-2-methyl- 1-propanol, mono-ethanolamine and di-ethanolamine. These materials are believed to give improved cleaning on tough or aged soils.
  • compositions according to the present invention comprise:
  • compositions comprise:
  • composition according to the present invention comprises:
  • the minors comprise:
  • LAS/LES mixture having a cmc of about 0.01%w/v) was placed on the surface of the sponge, followed by 15ml of water.
  • the plate was kept flat on a table and rubbed in a circular direction ten times with the surfactant-treated side of the sponge in contact with the plate.
  • the expressed liquid was collected from the plate using a glass filter funnel and the surfactant level in the collected liquid was determined by hyamine titration.
  • the plate was then rinsed, dried and the procedure repeated with the now slightly depleted sponge adding a further 15ml of water. This cycle was repeated twenty times.
  • the amount of surfactant delivered was low at first (although it was above the crical micelle concentration of about 0.01 in this instance) and the level increased rapidly as more active reached the surface of the sponge, and then decay was similar to the surface dosed case. It is noted that the initial loss of surfactant was avoided in the examples .
  • the perfume used was 'Fresh and Clean' [TM] (ex 3M) which is available both in encapsulated and liquid form and was used in both forms .
  • the following method was developed to simulate a direct application washing regime.
  • a hand dishwash liquid containing a known concentration of perfume was applied directly to a dampened sponge, which was then used to wash a clean plate in a standard way.
  • the plate was wiped 10 times in a circular motion, and then the sponge squeezed into 500ml of water 3 times. This procedure was repeated for 5 cycles. Comparison was made between pouch and surface application of the dishwash liquid, and the sponges were kept for further analysis as described below.
  • the following method was developed to simulate the use of a sponge during a dip and wipe dishwashing regime.
  • a dish washing liquid containing a known concentration of perfume/capsules was either applied directly to the sponge or diluted into 500ml of cold water in a Tergotometer pot to give a 1.0%AD solution.
  • the sponge either containing the dishwash liquid or not was then added to the pot and agitated in the Tergotometer for a known time. After the allotted time the sponges were squeezed to remove excess liquid and kept for further analysis as described
  • the perception of odour intensity within upper and lower boundaries was shown by Stevens to be proportional to the actual concentration raised to some power, which is a function of the stimulus condition, and is known as the Stevens Law Exponent.
  • the procedure used to estimate unknown test concentrations of perfume/capsules on sponges after treatment involved first determining the Stevens Law exponent. To this end, a 25ml solution containing a known mass of perfume or capsules in either water or dilute (1%AD) hand dish wash liquid was applied to a fixed mass of sponge. The capsule samples were then put into plastic bags, sealed, and mangled three times.
  • the sponges were subsequently put into randomly coded ' 8oz ' glass jars and left for at least 1 hour to equilibrate before presenting them to a panel to assess for odour intensity as described above.
  • the liquid perfume samples were left in randomly coded ' 8oz ' glass jars on a roller overnight before assessing.
  • the perfume concentrations used were 0.01%, 0.05%, 0.1%, 0.2% and 0.4%. Knowing the Steven's Law Exponent, and using a standard for comparison, it was possible to calculate the % of perfume retained on the sponge .
  • Table 2.2 shows the % of perfume captured after 10 minutes in a Tergotometer (simulating Dip & Wipe) as a function of perfume type and place of application of perfume.
  • Table 2.3 shows the % of perfume captured after a Direct
  • a model dishwash soil was prepared by heating together 2.5g stearic acid, 2.5g Priolene 6952 (fatty acid), 95. Og Mazola (TM) Corn Oil, and 0.12g Fat Red 7B, to 65°C. Separately, 200ml of demineralised water were heated to 45°C, lOOg of rice starch added and the mixture stirred. 800ml of boiling water was placed a large beaker and placed on a hot plate to keep it just boiling. The oil mixture was added to the starch mixture and stirred, then quickly but carefully added to the boiling water, stirring continuously. 200 ml of water was used to rinse out the beakers from the oil and starch, and the washings were added to the soil, which was allowed to cool to room temperature before use.
  • a sponge was immersed in the formulation, and squeezed several times to ensure that the sponge was primed, ie the formulation was evenly distributed throughout the sponge.
  • the first plate had been aged, it was cleaned using the sponge by wiping lOx in an anti-clockwise direction.
  • the sponge was then rinsed under a vigorous flow of cold water, squeezing and rubbing until only one minute remained before the next plate was to be cleaned.
  • the sponge was then squeezed tightly and then re-immersed in the formulation.
  • the sponge was then squeezed and released to re-prime the sponge, until it was time to clean the next plate.
  • the sponge was rinsed under the tap, and then put into a labelled plastic bag.
  • the sponges were measured to determine how much fatty soil had been picked up by the sponge, using a "Dr Lange Micro Color" (TM) .
  • the Dr Lange has a parameter, a , which measures colour along the red-green axis. The more red, the more positive the value of a * , and the more green, the more negative the value of a * . Since the sponges used were green, and the dye used was red, the value of a * gave good discrimination between sponges. Each sponge was measured five times, and the mean value of a * - 21
  • Table 4.1 shows results obtained from this test for a range of concentrations of 2:1 LAS:LES.

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  • Dental Preparations (AREA)

Abstract

L'invention concerne un ensemble d'éléments qui comportent une combinaison de: a) un article formé comportant un corps d'éponge présentant une première surface définissant un sac adapté pour recevoir et retenir une composition renfermant un tensioactif; et b) une composition renfermant un tensioactif qui comporte une phase particulaire. L'invention concerne également un procédé de nettoyage de surfaces au moyen d'un corps d'éponge comportant une première surface définissant un sac adapté pour recevoir et retenir une composition renfermant un tensioactif. Ce procédé consiste: a) à remplir au moins partiellement ledit sac avec une composition renfermant un tensioactif et comportant une phase particulaire; et b) à opérer un nettoyage manuel au moyen de l'éponge.
PCT/EP1997/006960 1996-12-20 1997-12-04 Ameliorations ayant trait au nettoyage de surfaces WO1998028399A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
BR9714157-7A BR9714157A (pt) 1996-12-20 1997-12-04 Conjunto de partes, e, processo de limpeza de superfìcie usando um corpo esponjoso, e, artigo.
CA002274578A CA2274578A1 (fr) 1996-12-20 1997-12-04 Ameliorations ayant trait au nettoyage de surfaces
AU57566/98A AU721828B2 (en) 1996-12-20 1997-12-04 Improvements relating to surface cleaning
EP97953791A EP0946707A1 (fr) 1996-12-20 1997-12-04 Ameliorations ayant trait au nettoyage de surfaces
PL97334123A PL334123A1 (en) 1996-12-20 1997-12-04 Improvement related to surface cleaning

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9626622.6A GB9626622D0 (en) 1996-12-20 1996-12-20 Improvements relating to surface cleaning
GB9626622.6 1996-12-20

Publications (1)

Publication Number Publication Date
WO1998028399A1 true WO1998028399A1 (fr) 1998-07-02

Family

ID=10804842

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1997/006960 WO1998028399A1 (fr) 1996-12-20 1997-12-04 Ameliorations ayant trait au nettoyage de surfaces

Country Status (13)

Country Link
EP (1) EP0946707A1 (fr)
KR (1) KR20000069597A (fr)
CN (1) CN1247563A (fr)
AR (1) AR009671A1 (fr)
AU (1) AU721828B2 (fr)
BR (1) BR9714157A (fr)
CA (1) CA2274578A1 (fr)
GB (1) GB9626622D0 (fr)
HU (1) HUP0000623A3 (fr)
PL (1) PL334123A1 (fr)
TR (1) TR199901399T2 (fr)
WO (1) WO1998028399A1 (fr)
ZA (1) ZA9711154B (fr)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002007558A3 (fr) * 2000-07-20 2002-04-11 Paul Haslauer Dispositif de soins cutanes
EP1256622A1 (fr) * 2001-05-08 2002-11-13 The Procter & Gamble Company Kit de lavage de vaisselle a la main
US6607739B1 (en) 2000-02-14 2003-08-19 Johnson & Johnson Consumer Companies, Inc. Dispensing article
US6783294B2 (en) 2000-02-14 2004-08-31 Johnson & Johnson Consumer Companies, Inc. Solid cleanser holder
US6794351B2 (en) 2001-04-06 2004-09-21 Kimberly-Clark Worldwide, Inc. Multi-purpose cleaning articles
US6957924B1 (en) 2000-02-14 2005-10-25 Johnson & Johnson Consumer Companies, Inc. Textured film devices
DE102004025859A1 (de) * 2004-05-24 2005-12-22 Henkel Kgaa Kit aus Schwamm und Reiniger
WO2013014127A1 (fr) 2011-07-27 2013-01-31 Bayer Intellectual Property Gmbh Particules comprenant un composé actif à base de polyacrylate
US9428719B2 (en) 2011-08-15 2016-08-30 The Procter & Gamble Company Personal care articles having multiple zones with compliant personal care compositions
US9592181B2 (en) 2011-04-04 2017-03-14 The Procter & Gamble Company Personal care articles and methods
EP2094827B2 (fr) † 2006-12-20 2017-09-13 Unilever N.V. Composition pour le lavage de la vaisselle
US9855203B2 (en) 2013-06-27 2018-01-02 The Procter & Gamble Company Preserving personal care compositions

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB897284A (en) * 1957-06-07 1962-05-23 Robert Amon Improvements in or relating to dispensers for solids, pastes or viscous liquids
US3775014A (en) * 1972-04-14 1973-11-27 Norris J Scouring article
US4330220A (en) * 1980-06-12 1982-05-18 The Kendall Company Scrub sponge
EP0141863A1 (fr) * 1983-08-02 1985-05-22 Firma Carl Freudenberg Eponge à récurer et son procédé de fabrication
US4789262A (en) * 1983-06-01 1988-12-06 Theolinde Sanchez Soap holding cleaning pad
US4847089A (en) * 1986-07-16 1989-07-11 David N. Kramer Cleansing and distinfecting compositions, including bleaching agents, and sponges and other applicators incorporating the same
WO1996032464A1 (fr) * 1995-04-10 1996-10-17 Unilever Plc Ameliorations apportees au nettoyage leger

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB897284A (en) * 1957-06-07 1962-05-23 Robert Amon Improvements in or relating to dispensers for solids, pastes or viscous liquids
US3775014A (en) * 1972-04-14 1973-11-27 Norris J Scouring article
US4330220A (en) * 1980-06-12 1982-05-18 The Kendall Company Scrub sponge
US4789262A (en) * 1983-06-01 1988-12-06 Theolinde Sanchez Soap holding cleaning pad
EP0141863A1 (fr) * 1983-08-02 1985-05-22 Firma Carl Freudenberg Eponge à récurer et son procédé de fabrication
US4847089A (en) * 1986-07-16 1989-07-11 David N. Kramer Cleansing and distinfecting compositions, including bleaching agents, and sponges and other applicators incorporating the same
WO1996032464A1 (fr) * 1995-04-10 1996-10-17 Unilever Plc Ameliorations apportees au nettoyage leger

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6607739B1 (en) 2000-02-14 2003-08-19 Johnson & Johnson Consumer Companies, Inc. Dispensing article
US6783294B2 (en) 2000-02-14 2004-08-31 Johnson & Johnson Consumer Companies, Inc. Solid cleanser holder
US6957924B1 (en) 2000-02-14 2005-10-25 Johnson & Johnson Consumer Companies, Inc. Textured film devices
WO2002007558A3 (fr) * 2000-07-20 2002-04-11 Paul Haslauer Dispositif de soins cutanes
US6794351B2 (en) 2001-04-06 2004-09-21 Kimberly-Clark Worldwide, Inc. Multi-purpose cleaning articles
EP1256622A1 (fr) * 2001-05-08 2002-11-13 The Procter & Gamble Company Kit de lavage de vaisselle a la main
WO2002090485A1 (fr) * 2001-05-08 2002-11-14 The Procter & Gamble Company Necessaire pour laver la vaisselle a la main
DE102004025859A1 (de) * 2004-05-24 2005-12-22 Henkel Kgaa Kit aus Schwamm und Reiniger
EP2094827B2 (fr) † 2006-12-20 2017-09-13 Unilever N.V. Composition pour le lavage de la vaisselle
US9592181B2 (en) 2011-04-04 2017-03-14 The Procter & Gamble Company Personal care articles and methods
US10335351B2 (en) 2011-04-04 2019-07-02 The Procter & Gamble Company Personal care articles and methods
WO2013014127A1 (fr) 2011-07-27 2013-01-31 Bayer Intellectual Property Gmbh Particules comprenant un composé actif à base de polyacrylate
US9428719B2 (en) 2011-08-15 2016-08-30 The Procter & Gamble Company Personal care articles having multiple zones with compliant personal care compositions
US9540602B2 (en) 2011-08-15 2017-01-10 The Procter & Gamble Company Conformable personal care articles
US9763547B2 (en) 2011-08-15 2017-09-19 The Procter & Gamble Company Personal care articles having multi-zone compliant personal care compositions
US10016098B2 (en) 2011-08-15 2018-07-10 The Procter & Gamble Company Personal care articles having multiple zones with compliant personal care compositions
US10070761B2 (en) 2011-08-15 2018-09-11 The Procter & Gamble Company Conformable personal care articles
US9855203B2 (en) 2013-06-27 2018-01-02 The Procter & Gamble Company Preserving personal care compositions
US9907738B2 (en) 2013-06-27 2018-03-06 The Procter & Gamble Company Personal care compositions and articles

Also Published As

Publication number Publication date
EP0946707A1 (fr) 1999-10-06
GB9626622D0 (en) 1997-02-05
HUP0000623A2 (en) 2000-07-28
ZA9711154B (en) 1999-06-11
AU721828B2 (en) 2000-07-13
AU5756698A (en) 1998-07-17
KR20000069597A (ko) 2000-11-25
TR199901399T2 (xx) 1999-08-23
CA2274578A1 (fr) 1998-07-02
PL334123A1 (en) 2000-02-14
HUP0000623A3 (en) 2003-02-28
BR9714157A (pt) 2000-04-25
CN1247563A (zh) 2000-03-15
AR009671A1 (es) 2000-04-26

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