EP2097504A1 - Dispositif de distribution d'un composant anti-mauvaise odeur - Google Patents

Dispositif de distribution d'un composant anti-mauvaise odeur

Info

Publication number
EP2097504A1
EP2097504A1 EP07848023A EP07848023A EP2097504A1 EP 2097504 A1 EP2097504 A1 EP 2097504A1 EP 07848023 A EP07848023 A EP 07848023A EP 07848023 A EP07848023 A EP 07848023A EP 2097504 A1 EP2097504 A1 EP 2097504A1
Authority
EP
European Patent Office
Prior art keywords
dispensing device
malodour
washing
ion
chamber
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.)
Withdrawn
Application number
EP07848023A
Other languages
German (de)
English (en)
Inventor
Matthew Elliot Helton
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Unilever PLC
Unilever NV
Original Assignee
Unilever PLC
Unilever NV
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 NV filed Critical Unilever PLC
Priority to EP07848023A priority Critical patent/EP2097504A1/fr
Publication of EP2097504A1 publication Critical patent/EP2097504A1/fr
Withdrawn legal-status Critical Current

Links

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
    • C11D17/041—Compositions releasably affixed on a substrate or incorporated into a dispensing means
    • 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
    • C11D3/0068—Deodorant 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
    • C11D3/395—Bleaching agents
    • C11D3/3951—Bleaching agents combined with specific additives

Definitions

  • the present invention relates to an anti-malodour laundry detergent composition and use thereof.
  • European Patent 303,520 discloses cationic nitriles.
  • European patent 382 562 discloses polymeric ammonium triiodides and there use as disinfectants.
  • United States Patent 6,811,771 discloses an antimicrobial organic polymer material.
  • the organic polymer material has a polymer side chain containing a unit derived from an N- alkyl-N-vinylalkylamide on a backbone of a polymer substrate; a triiodide ion is carried on the organic polymer material .
  • the iodine/resin is prepared from an anionic exchange resin and an iodine/iodide mixture.
  • United States Patent 6,899,868 discloses an iodine/resin disinfectant and a procedure for the preparation thereof.
  • United States Patent 6,680,050 discloses an iodine/resin disinfectant and a procedure for the preparation thereof.
  • WO 04/029354 discloses a bleaching composition comprising: (a) iodine or a source thereof in the range from 0.0005 wt% to 5.0 wt %; and, (b) the balance carriers and adjunct ingredients.
  • the invention provides a dispensing device suitable for use in a fabric washing operation, the device incorporating a anti-malodour component comprising a halide delivery vehicle.
  • the anti-malodour component reduces bacteria and fungus and thus malodour in clothes that arise as a result of bodily secretions.
  • the present invention provides a method of reducing malodour in the wash using a dispensing device of the first aspect of the invention, the method including the step of adding said dispensing device to an aqueous medium and agitating the medium.
  • the present invention provides a method of reducing malodour in multiple, successive washes using a dispensing device of the first aspect of the invention, the method including the step of adding said dispensing device to an aqueous medium in a washing receptacle (such as a washing machine drum) and then carrying out an aqueous washing operation therein by agitating the washing medium and retaining the dispensing device therein until and during further washing operations.
  • a washing receptacle such as a washing machine drum
  • the invention provides a washing machine comprising a receptacle or drum suitable incorporating a dispensing device according to the first aspect of the invention, for carrying out an aqueous washing operation according to the second or third aspects of the invention.
  • the halide delivery vehicle is preferably a cationic species with polyhalide ion.
  • the cationic species is a polymer .
  • the halide may be I2 or Br 2 or CI2, the polyhalide ions having a valence of -1.
  • polyhalide As used herein, the terms "polyhalide,” “polyhalide ions,” and the like refer to or characterise a substance or a complex that has three or more halogen atoms and a valence of -1, and which may be formed if a molecular halogen (e.g. iodine as I 2 ) combines with a monovalent trihalide ion (e.g. tiiodide ion) or pentahalide ion (e.g., pentaiodide ion). Bromine and chlorine also may be used as a source of molecular halogen.
  • a molecular halogen e.g. iodine as I 2
  • a monovalent trihalide ion e.g. tiiodide ion
  • pentahalide ion e.g., pentaiodide ion
  • Bromine and chlorine also may be used as
  • polyiodide refers to or characterise a substance or a complex that has three or more iodine atoms and that may be formed if molecular iodine combines with the monovalent triiodine ion.
  • the polyhalide is a trihalide, and more preferably a triiodine.
  • the terms "triiodide, “triiodide ion,” and the like refer to or characterise a substance or a complex that contains three iodine atoms and has a valence of -1.
  • the trihalide ion herein is a complex ion which may be considered as comprising molecular halide (e.g. I2) a halide ion (e.g. I ⁇ ) .
  • the anti-malodour component may comprise an ion exchanger system in which the polyhalide is the counter ion released.
  • the anti-malodour component is preferably an anion exchange resin.
  • the term ion exchange resin includes resins comprising an organic or inorganic insoluble polymer or polymer network.
  • the dispensing device may be any suitable shape such as substantially ball/oval shaped.
  • dispensing device is water insoluble.
  • the dispensing device may be fixed to the washing machine so that it stays in place for successive washing operations.
  • the dispensing device may be comprise a chamber that contains a plurality of delivery members comprising the anti-malodour component.
  • the chamber has one or more apertures, such as perforations to allow fluid to pass through to contact the contained delivery members.
  • the perforations may be sufficiently large that the container presents a form of cage or a mesh or grid structure.
  • the perforations are dimensioned/sized so that the delivery members cannot escape into the wash liquor. This is especially advantageous if the device is to be used repeatedly i.e. without refilling, in multiple successive washes.
  • the delivery members provide a high contact surface area to volume ratio.
  • a generally spherical ball or bead is advantageous.
  • eliptical or tubular constructions are also possible.
  • the delivery members are preferably greater than 0.5 cm in diameter, more preferably greater than 0.8 cm and even more preferably greater than 1 cm in diameter. This provides apertures which are sufficiently large to allow the water to pass through to contact the members for anti-malodour treatment .
  • the dispensing device may be rigid or flexible and may be provide a sealed unit, at least in so far as containment of the anti-malodour component is concerned.
  • the dispensing device may comprise rigid spacing means such as a rigid member or members which, in use, space the apertures from garment / fabrics in the wash. This helps protect the garment from discolouration due to contact/close proximity with the anti-malodour component.
  • the rigid spacing means may be restricted to the part of the device containing the apertures.
  • the rigid spacing means may comprise a rigid structure with apertures or a cage-like structure or mesh structure which surrounds at least the part of the device containing the apertures .
  • the dispensing device is preferably used in conjunction with a laundry treatment composition.
  • the dispensing device may therefore incorporate, in addition to the anti-malodour component, a chamber for containment of a unit dose of the laundry treatment agent.
  • a unit dose such as a tablet or liquid capsule, these may placed into the chamber containing the delivery members.
  • the dispensing device may be removable from the washing machine to allow dosing of the laundry treatment composition .
  • the malodour component may be incorporated in the dispensing device and the laundry treatment composition dosed into the machine/washing receptacle separately e.g. by a further device or directly or via a machine dosing drawer.
  • An anti-malodour component may be also incorporated in the laundry treatment composition.
  • the cationic species may be present in the composition in an amount from 0.00001 to 20 wt%, preferably 0.0001 to 5 wt%, more preferably 0.001 to 1 wt%.
  • the present invention extends to method of pretreating a garment with the dispensing device. Preferably armpit areas of a garment are pre-treated.
  • the dispensing device of the invention may contain an aperture or spout for pretreating a garment or fabric with (i) the incorporated anti-malodour component and/or with (ii) a contained laundry treatment composition containing the anti-malodour component.
  • the invention provides a method of pretreating a garment or textile, the method comprising the step of contacting the garment/fabric e.g. armpit areas with the dispensing device and particularly with apertured areas of the device, in an aqueous solution such as a pre-wash liquor or simply water.
  • the present invention provides a package in combination with (i) a dispensing device of the first aspect and
  • the cationic species may be an organic polymer material containing a polymer side chain having a unit derived from an N-alkyl-N-vinylalkylamide on a backbone of a polymer substrate, a polyhalide ion being carried on the organic polymer material.
  • United States Patent 6,811,771 and references found therein describe manufacture of such species.
  • the polymeric cationic species should be construed as covering the polymer and proton in column 5 for example, a protonated poly (vinylpyrrolidone) (PVP).
  • Polymer units derived from N-vinylpyrrolidone, l-vinyl-2-piperidone, N- vinyl-N-methylacetamide, N-vinyl-N-ethylacetamide, N-vinyl- N-methyl propylamide, N-vinyl-N-ethyl propylamide are preferred but PVP is a preferred polymer.
  • Treatment of (PVP) with I2/KI as essentially described below will yield PVP with a triiodide ion.
  • the polymeric ammonium triiodides as described in European patent 382 582 are also preferred anti-malodour active compounds for use in the present invention.
  • Preferred examples of which are: poly [ (dimethyliminio) -2- hydroxypropylene triiodide] , poly [oxyethylene (dimethyliminio) hydroxypropylene (dimethyliminio) ethylene di (triiodide) ] and poly [2- hydroxyethylene (dimethyliminio) ethylene-dimethyliminio) - methylene di (triiodide) ] .
  • a suitable triiodide counter ion is produced, for example by combining iodine with sodium, potassium or ammonium iodide and some water.
  • the composition will contain monovalent iodide ion that will combine with diatomic iodine (12) to form polyiodide ion.
  • the molar ratio of iodine ion to diatomic iodine will dictate the nature of the polyiodide ion present, i.e. triiodide ion, mixtures of triiodide ion and other higher polyiodides ions, pentaiodide ion, etc.
  • the anti-malodour component is preferably a quaternary ammonium compound.
  • the quaternary ammonium compound is most preferably a trimethyl quaternary ammonium compound.
  • a preferred class of quaternary amonium compounds are quaternary ammonium resins as disclosed in United States Patent 6,592,861.
  • the resin is United States Patent 6,899,868 discloses an iodine/resin disinfectant and a procedure for the preparation thereof.
  • the resins are insoluble in water.
  • Most preferably the resin is a trimethyl quaternary ammonium compound.
  • the quaternary ammonium resins having a triiodide counter ion are easily produced.
  • the resin may be contacted with an alkali metal iodide/12 mix wherein the iodide and the diatomic iodine are present in more or less stoichiometric amounts (i.e. a mole ratio of 1) .
  • stoichiometric amounts of the iodine ion and iodine molecule i.e. one mole of 12 per mole of I-
  • the iodide sludge will comprise substantially only the triiodide ions.
  • stoichiometric excess quantities of 12 are used some of the higher polyiodide ions may be formed.
  • no more than the stoichiometric proportions of I- and 12 are used in the initial aqueous starting sludge so that substantially only triiodide attaches to the resin.
  • United States Patent 6,592,861, 6,899,868 and references found therein provide enablement as to how such resins are manufactured.
  • the resins are commercially available, for example the Amberlite series as provides by Rohm and Haas; a preferred example is Amberlite 401-S.
  • a quaternary ammonium resin having a triiodide counter ion may be obtained by a) bringing a porous, granular, starting resin into contact with an aqueous sludge of iodine and potassium iodide so as to obtain a paste mixture, iodine being present in the sludge essentially as triiodide ions, said starting resin being a strong base anion exchange resin having strongly basic groups thereof in a salt form the anion of which is exchangeable with triiodide ions, b) subjecting the paste mixture to elevated temperature and pressure conditions in an enclosed container or reactor (e.g., autoclave) for a predetermined impregnating duration of time, a void space being provided in the reactor such that contact occurs under an iodine atmosphere, and c) washing the obtained iodide-resin product with a suitable deionised water to remove water elutable iodine such as KI from the surface of the resin so that
  • the quaternary ammonium resin is preferably ground into a fine powder.
  • the powder is preferably in the range from 1 nanometre to 1000 microns, more preferably from 500 nanometres to 500 microns.
  • the aforementioned sizes are determined by use of appropriately sized sieves or what would pass through or be retained by an appropriately sized sieve. Indeed, this size is preferred when and solid anti- malodour active, i.e., a cationic species with triiodide counter ion.
  • the level of the quaternary ammonium resins having a triiodide counter ion in a laundry composition is preferably from 0.001 to 2 wt% Triosyn® ⁇ ep Ji K-, 'vl jewi to "dve ir J " K y K 1 Lh ⁇ p/eserr application .
  • the anti-malodour active is insoluble in water, preferably less than 1 mg/L in water at 20 0 C, most preferably insoluble per se.
  • the laundry treatment composition preferably comprises between 2 to 70 wt % of a surfactant, most preferably 10 to 45 wt %.
  • a surfactant preferably 10 to 45 wt %.
  • the nonionic and anionic surfactants of the surfactant system may be chosen from the surfactants described "Surface Active Agents" Vol. 1, by Schwartz & Perry, Interscience 1949, Vol. 2 by Schwartz, Perry & Berch, Interscience 1958, in the current edition of "McCutcheon ' s Emulsifiers and Detergents” published by Manufacturing Confectioners Company or in "Tenside-Taschenbuch", H. Stache, 2nd Edn., Carl Hauser Verlag, 1981.
  • the surfactants used are saturated.
  • Suitable nonionic detergent compounds which may be used include, in particular, the reaction products of compounds having a hydrophobic group and a reactive hydrogen atom, for example, aliphatic alcohols, acids, amides or alkyl phenols with alkylene oxides, especially ethylene oxide either alone or with propylene oxide.
  • Specific nonionic detergent compounds are Ce to C22 alkyl phenol-ethylene oxide condensates, generally 5 to 25 EO, i.e. 5 to 25 units of ethylene oxide per molecule, and the condensation products of aliphatic Cs to Cis primary or secondary linear or branched alcohols with ethylene oxide, generally 5 to 40 EO.
  • Suitable anionic detergent compounds which may be used are usually water-soluble alkali metal salts of organic sulphates and sulphonates having alkyl radicals containing from about 8 to about 22 carbon atoms, the term alkyl being used to include the alkyl portion of higher acyl radicals.
  • suitable synthetic anionic detergent compounds are sodium and potassium alkyl sulphates, especially those obtained by sulphating higher Cs to Cis alcohols, produced for example from tallow or coconut oil, sodium and potassium alkyl Cg to C20 benzene sulphonates, particularly sodium linear secondary alkyl Cio to Ci 5 benzene sulphonates; and sodium alkyl glyceryl ether sulphates, especially those ethers of the higher alcohols derived from tallow or coconut oil and synthetic alcohols derived from petroleum.
  • the preferred anionic detergent compounds are sodium Cu to Ci 5 alkyl benzene sulphonates and sodium C 12 to Cis alkyl sulphates.
  • surfactants such as those described in EP-A-328 177 (Unilever), which show resistance to salting-out, the alkyl polyglycoside surfactants described in EP-A-070 074, and alkyl monoglycosides .
  • Preferred surfactant systems are mixtures of anionic with nonionic detergent active materials, in particular the groups and examples of anionic and nonionic surfactants pointed out in EP-A-346 995 (Unilever).
  • surfactant system that is a mixture of an alkali metal salt of a C16 to Cis primary alcohol sulphate together with a C12 to Ci 5 primary alcohol 3 to 7 EO ethoxylate.
  • the nonionic detergent is preferably present in amounts greater than 10%, e.g. 25 to 90 wt % of the surfactant system.
  • Anionic surfactants can be present for example in amounts in the range from about 5% to about 40 wt % of the surfactant system.
  • the surfactant may be cationic such that the formulation has a fabric conditioning functionality.
  • Most preferred cationic compounds are quaternary ammonium compounds .
  • the quaternary ammonium compound is a quaternary ammonium compound having at least one C12 to C22 alkyl chain.
  • the quaternary ammonium compound has the following formula:
  • R 1 is a C12 to C22 alkyl or alkenyl chain
  • R 2 , R 3 and R 4 are independently selected from Ci to C 4 alkyl chains and X ⁇ is a compatible anion.
  • a preferred compound of this type is the quaternary ammonium compound cetyl trimethyl quaternary ammonium bromide.
  • a second class of materials for use with the present invention are the quaternary ammonium of the above structure in which R 1 and R 2 are independently selected from C12 to C22 alkyl or alkenyl chain; R 3 and R 4 are independently selected from Ci to C4 alkyl chains and X ⁇ is a compatible anion.
  • the ratio of cationic to nonionic surfactant is from 1:100 to 50:50, more preferably 1:50 to 20:50.
  • the fabric conditioning cationic compound may be present from 1.5 wt % to 50 wt % of the total weight of the composition.
  • the cationic compound may be present from 2 wt % to 25 wt %, a more preferred composition range is from 5 wt % to 20 wt %.
  • the softening material is preferably present in an amount of from 2 to 60% by weight of the total composition, more preferably from 2 to 40%, most preferably from 3 to 30% by weight .
  • the composition optionally comprises a silicone.
  • the composition of the present invention preferably comprises one or more detergency builders.
  • the total amount of detergency builder in the compositions will preferably range from 5 to 80 wt%, more preferably from 10 to 60 wt%.
  • Inorganic builders that may be present include sodium carbonate, if desired in combination with a crystallisation seed for calcium carbonate, as disclosed in GB 1 437 950 (Unilever) ; crystalline and amorphous aluminosilicates, for example, zeolites as disclosed in GB 1 473 201 (Henkel) , amorphous aluminosilicates as disclosed in GB 1 473 202 (Henkel) and mixed crystalline/amorphous aluminosilicates as disclosed in GB 1 470 250 (Procter & Gamble) ; and layered silicates as disclosed in EP 164 514B (Hoechst) .
  • Inorganic phosphate builders for example, sodium orthophosphate, pyro
  • compositions of the invention preferably contain an alkali metal, preferably sodium, aluminosilicate builder.
  • Sodium aluminosilicates may generally be incorporated in amounts of from 10 to 70% by weight (anhydrous basis) , preferably from 25 to 50 wt%.
  • the alkali metal aluminosilicate may be either crystalline or amorphous or mixtures thereof, having the general formula: 0.8-1.5 Na 2 O. Al 2 O 3 . 0.8-6 SiO 2 .
  • the preferred sodium aluminosilicates contain 1.5-3.5 SiO 2 units (in the formula above) . Both the amorphous and the crystalline materials can be prepared readily by reaction between sodium silicate and sodium aluminate, as amply described in the literature. Suitable crystalline sodium aluminosilicate ion-exchange detergency builders are described, for example, in GB 1 429 143 (Procter & Gamble) .
  • the preferred sodium aluminosilicates of this type are the well-known commercially available zeolites A and X, and mixtures thereof.
  • the zeolite may be the commercially available zeolite 4A now widely used in laundry detergent powders.
  • the zeolite builder incorporated in the compositions of the invention is maximum aluminium zeolite P (zeolite MAP) as described and claimed in EP 384 070A (Unilever) .
  • Zeolite MAP is defined as an alkali metal aluminosilicate of the zeolite P type having a silicon to aluminium ratio not exceeding 1.33, preferably within the range of from 0.90 to 1.33, and more preferably within the range of from 0.90 to 1.20.
  • Especially preferred organic builders are citrates, suitably used in amounts of from 5 to 30 wt%, preferably from 10 to 25 wt%; and acrylic polymers, more especially acrylic/maleic copolymers, suitably used in amounts of from 0.5 to 15 wt%, preferably from 1 to 10 wt%.
  • Builders both inorganic and organic, are preferably present in alkali metal salt, especially sodium salt, form. It is preferred that the composition comprises from 2 to 30 wt% of sodium carbonate.
  • the composition may contain peroxygen bleaches and bleach activators.
  • a peroxygen bleach When a peroxygen bleach is present the preferred format is granular. If the quaternary ammonium compound is cationic nitrile then it will function as an activator in itself.
  • Preferred peroxygen bleaches are sodium percarbonate and sodium perborate, most preferred is sodium percarbonate.
  • Activators include amongst other things TAED (( (H 3 C-CO) 2N-CH 2 -CH 2 -N(OC-CH 3 ) 2 ) ) and transition metal catalysts.
  • a preferred range for a peroxygen bleach is from 2 to 25 wt %, most preferably 5 to 15 wt %, in the composition.
  • the peroxygen bleach is in a different granule to the anti-malodour component.
  • a peroxygen bleach is only present when the anti-malodour species is insoluble in water.
  • the composition preferably comprises a fluorescent agent (optical brightener) .
  • fluorescent agents are well known and many such fluorescent agents are available commercially. Usually, these fluorescent agents are supplied and used in the form of their alkali metal salts, for example, the sodium salts.
  • the total amount of the fluorescent agent or agents used in the composition is generally from 0.005 to 2 wt %, more preferably 0.01 to 0.1 wt %.
  • Preferred classes of fluorescer are: Di-styryl biphenyl compounds, e.g. Tinopal (Trade Mark) CBS-X, Di-amine stilbene di-sulphonic acid compounds, e.g.
  • Preferred fluorescers are: sodium 2 (4-styryl-3- sulfophenyl) -2H-napthol [ 1 , 2-d] trazole, disodium 4,4'- bis ⁇ [ (4-anilino-6- (N methyl-N-2 hydroxyethyl) amino 1,3,5- triazin-2-yl) ] amino ⁇ stilbene-2-2 ' disulfonate, disodium 4 , 4 ' -bis ⁇ [ (4-anilino-6-morpholino-l , 3, 5-triazin-2-yl) ] amino ⁇ - I i
  • stilbene-2-2 ' disulfonate and disodium 4, 4 '-bis (2- sulfoslyryl) biphenyl .
  • the composition comprises a perfume.
  • the perfume is preferably in the range from 0.001 to 3 wt %, most preferably 0.1 to 1 wt %.
  • CTFA Cosmetic, Toiletry and Fragrance Association
  • OPD Chemicals Buyers Directory 80th Annual Edition, published by Schnell Publishing Co.
  • Enzymes as optional ingredients may also be present as found in WO0060045.
  • the washing operation of the invention may be carried out in an aqueous medium comprising from of 0.5 g/L to 30 g/1 of the laundry treatment composition incorporated, the aqueous medium may have a pH in the range 4 to 11, and may be followed by a rinsing step wherein the garment/textile is rinsed with water. This may be followed by a drying operation .
  • the laundry composition is added to water such that it provides from 0.2 g/L to 5 g/L of surfactant in the aqueous medium.
  • composition may be liquid or solid. If a solid, a granular format is preferred.
  • Figure 1 shows a perspective view of one embodiment according to the invention.
  • Figure 2 shows a perspective view of a second embodiment according to the invention.
  • Figure 1 shows a dispensing device 1 suitable for use in a fabric washing operation in a washing machine, the device 1 incorporating a anti-malodour component comprising delivery members which are in this embodiment insoluble spherical iodised anion exchange resin beads having a triiodide counter ion.
  • a anti-malodour component comprising delivery members which are in this embodiment insoluble spherical iodised anion exchange resin beads having a triiodide counter ion.
  • This is prepared from Amberlite IR-400, per example 9 of US6,899,868 but beginning with beads of the required mesh size, instead of granules.
  • the dispensing device 1 comprises a rigid (insoluble) plastic shuttle which has a chamber 5 containing the anion exchange resin beads.
  • the device 1 is opaque and so the bead are not visible, but for the purposes of explaining this embodiment, the position of the beads is generally indicated at 13.
  • the chamber 5 is closed to retain the beads therein for successive washes.
  • the chamber has perforations 9 which are dimensioned to allow fluid to enter but to prevent egress of the beads during the wash. Accordingly, the beads 13 are lcm in diameter whereas the perforations 9 are 0.8 cm in diameter.
  • the dispensing device 1 also has a second chamber 3 for containment of a unit dose of laundry treatment composition 15 (e.g. exemplary composition A below) which may optionally contain the malodour component (ground into a fine powder as exemplified in composition B described below) .
  • This chamber 3 has an filling and dispensing aperture 11. The chamber is refilled before each washing operation and the laundry composition is dispensed from the aperture 11 during the wash.
  • a dispensing device is as for the above described device but further includes a rigid spacing member or members. These function to space the perforations 9 from the laundry in the event of any discolouration due to contact/close proximity with the anti-malodour component.
  • the rigid spacing means may be restricted to the part of the device containing the perforations.
  • the rigid spacing means may comprise a rigid structure with large apertures or a cage-like structure or mesh having large aperture-size at least surrounding the device or part of the device.
  • the apertures of any rigid structure, cage or mesh are preferably 0.5 - 5 cm in diameter .
  • FIG. 1 A further embodiment is shown in figure 2, comprising a woven fabric sachet 100 which allows fluid (wash liquor) to pass through.
  • the sachet 100 has a chamber 105 containing anion exchange resin beads generally indicated at 113 and is sealed or sewn shut to prevent escape of the beads 113.
  • the sachet simply remains in the wash for successive washes
  • the laundry treatment composition is added to the wash separately, e.g. via the draw or a dosing shuttle.
  • Bottle embodiments are used over successive washes, and do not require refilling with malodour component.
  • Exemplary detergent B is as above except that it includes a quaternary ammonium resin having a triiodide counter ion prepared from Amberlite IR-400, per example 9 of
  • This powder is then added to the base detergent at a level of 0.1 wt % to provide an anti-malodour formulation.

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Detergent Compositions (AREA)
  • Medicines Containing Material From Animals Or Micro-Organisms (AREA)

Abstract

L'invention concerne un dispositif de distribution approprié pour être utilisé dans une opération de lavage de tissus, le dispositif incorporant un composant anti-mauvaise odeur comportant un véhicule de distribution de type halogénure.
EP07848023A 2006-12-22 2007-12-10 Dispositif de distribution d'un composant anti-mauvaise odeur Withdrawn EP2097504A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP07848023A EP2097504A1 (fr) 2006-12-22 2007-12-10 Dispositif de distribution d'un composant anti-mauvaise odeur

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP06127036 2006-12-22
EP07848023A EP2097504A1 (fr) 2006-12-22 2007-12-10 Dispositif de distribution d'un composant anti-mauvaise odeur
PCT/EP2007/063591 WO2008077748A1 (fr) 2006-12-22 2007-12-10 Dispositif de distribution d'un composant anti-mauvaise odeur

Publications (1)

Publication Number Publication Date
EP2097504A1 true EP2097504A1 (fr) 2009-09-09

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EP07848023A Withdrawn EP2097504A1 (fr) 2006-12-22 2007-12-10 Dispositif de distribution d'un composant anti-mauvaise odeur

Country Status (4)

Country Link
EP (1) EP2097504A1 (fr)
AR (1) AR064484A1 (fr)
CL (1) CL2007003787A1 (fr)
WO (1) WO2008077748A1 (fr)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2111446A1 (fr) * 2006-12-20 2009-10-28 Unilever PLC Dispositif distributeur contre les mauvaises odeurs

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WO2008077748A1 (fr) 2008-07-03
AR064484A1 (es) 2009-04-01

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