Classifications

• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
  • C11D3/16—Organic compounds
  • C11D3/18—Hydrocarbons
• • 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
  • A47L25/00—Domestic cleaning devices not provided for in other groups of this subclass 
  • A47L25/08—Pads or the like for cleaning clothes
• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
  • C11D1/02—Anionic compounds
  • C11D1/37—Mixtures of compounds all of which are anionic
• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
  • C11D1/66—Non-ionic compounds
  • C11D1/825—Mixtures of compounds all of which are non-ionic
• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
  • C11D1/66—Non-ionic compounds
  • C11D1/83—Mixtures of non-ionic with anionic compounds
• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
  • C11D17/0008—Detergent materials or soaps characterised by their shape or physical properties aqueous liquid non soap compositions
  • C11D17/0017—Multi-phase liquid 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
  • C11D3/3902—Organic or inorganic per-compounds combined with specific additives
  • C11D3/3905—Bleach activators or bleach catalysts
  • C11D3/3907—Organic compounds
• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
  • C11D3/43—Solvents
• • D—TEXTILES; PAPER
  • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
  • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
  • D06F43/00—Dry-cleaning apparatus or methods using volatile solvents
  • D06F43/002—Spotting apparatus
• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
  • C11D1/02—Anionic compounds
  • C11D1/12—Sulfonic acids or sulfuric acid esters; Salts thereof
  • C11D1/14—Sulfonic acids or sulfuric acid esters; Salts thereof derived from aliphatic hydrocarbons or mono-alcohols
  • C11D1/146—Sulfuric acid esters
• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
  • C11D1/66—Non-ionic compounds
• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
  • C11D1/66—Non-ionic compounds
  • C11D1/72—Ethers of polyoxyalkylene glycols
• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D2111/00—Cleaning compositions characterised by the objects to be cleaned; Cleaning compositions characterised by non-standard cleaning or washing processes
  • C11D2111/10—Objects to be cleaned
  • C11D2111/12—Soft surfaces, e.g. textile
• • 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
  • C11D2111/44—Multi-step processes

Definitions

• the present invention relates to compositions for treating stains on laundry items.
• Laundry items can be treated either before or after a conventional laundering process by application of the composition in the region of the stain so that the stain is at least partially released and removal of the stain is made easier.
• Emulsions of solvent-aqueous systems are known to be effective as spot pretreating compositions on both hydrophobic and hydrophilic stains .
• GB-A-2 194 547 published on 9th March 1988, discloses mixtures of n-dodecane with both short-chain (Neodol 91-6) and long chain (Neodol 45-1) nonionics.
• the compositions are in the form of liquid solutions; water-in-oil or oil- in-water microemulsions, or gels.
• US-A-4 093 418 issued on 6th June 1978, and US-A-4 178 262, issued on 11th December 1979, disclose isoparaffin (C 11 -C ⁇ _4) in combination with long-chain .C ⁇ _o-C ⁇ _g) nonionics.
• the present invention relates to a cleaning composition which is an oil-in-water or water-in-oil emulsion or a solution comprising non-aqueous hydrophobic solvent; first anionic or nonionic surfactant having an alkyl chain, the length of the alkyl chain being C ⁇ _ ⁇ _ or less; and second anionic or nonionic surfactant having an alkyl chain, the length of the alkyl chain being C]_2 or more -
• Another object of the present invention is to improve the removal of bleachable stains through the application of the composition of the present invention and the application of a bleaching compound, preferably a peroxide compound.
• the objective of the present invention is achieved by providing a cleaning composition which has a pH greater than 8, thereby enhancing cleaning performance for both fatty stains and bleachable stains.
• a cleaning composition which has a pH greater than 8, thereby enhancing cleaning performance for both fatty stains and bleachable stains.
• the pH is greater than 9, and more preferably greater than 10.
• the cleaning composition preferably comprises water from 5% to 95% by weight of the composition.
• the invention also relates to a method for treating a spot or stain on a textile fabric using the cleaning compositions of the invention.
• Hydrophobic solvents are an essential feature of the compostions of the present invention.
• Preferred hydrophobic solvents are defined in terms of Hansen parameters.
• a hydrophobic solvent as defined herein is considered to be a solvent having Hansen hydrogen bonding cohesion parameter dH below 18 (Joule/cm 3 ) 0 - 5 .
• Preferred hydrophobic solvents have a Hansen hydrogen bonding cohesion parameter dH below 12 (Joule/cm 3 ) ⁇ • 5 and a Hansen polar parameter dP below 8 (Joule/cm 3 ) 0 • 5 .
• Preferred solvents for use comprise mixtures of hydrocarbons with a flash point no lower than 70°C, an initial boiling point no lower than 130°C, preferably no lower than 145°C, and a solidification point not above 20°C and aliphatic fatty acid esters. More preferred solvents would be alkanes or alkenes with a chain length above C7, and particularly alkanes and alkenes with an average of C8 to C20 atoms. Particularly preferred hydrophobic solvents are deodorised kerosine; solvent naphta; chlorinated hydrocarbons; and terpenes.
• paraffins Even more preferred are paraffins; isoparaffins; naphthenes; aromatics; olefins; 1, 1, 1-trichloroethane perchloroethylene; methylene chloride; Shellsol SS" mixture (C8-C11 isoparaffin + 5% aliphatic C7 ester) ; D-Limonene; and Glidsafe® supplied by Glidsol.
• Solvents are used in the detergent compositions of the present invention preferably at a level of from 3% to 90%, more preferably from 4% to 45%, and most preferably from 5% to 25% by weight of the detergent composition.
• solvents having a Hansen parameter of dH less than 18 (Joule/cm 3 ) 0 - 5 include glycol ethers, more preferably glycol ethers based upon ethylene oxide, propylene oxide, or mixtures thereof. Particularly preferred are ethylene glycol monoethyl ether; Propylene glycol monomethyl ether; 2-butoxy ethanol; butyl diethylene glycol ether ethanol; butoxytriglycol; butylene glycol; hexylene glycol; and propyl propanol. Such solvents are used in combination with mixtures of short chain surfactants and long chain surfactants .
• short-chain what is meant herein is surfactants which comprise a Cg-C ⁇ _ ] _ alkyl chain as their hydrophobic portion.
• Such short-chain surfactants are accordingly those conventionally used in this field, but with a shorter alkyl chain, and can be of any type.
• suitable short chain surfactants for use herein include Cg-C ⁇ _ ⁇ _ alkyl sulfates (Cg-CnS ⁇ 4) , alkyl ether sulfates (C -C ] _ ⁇ (OCH 2 CH 2 ) eS0 4 ) , alkyl sulfonates (Cg-C 11 S0 3 ) / alkyl succinates (Cg-C 11 OOCCH 2 CH 2 COOZ) , alkyl carboxylates (Cg- C 1;L COOM) , alkyl ether carboxylates (Cg-C 1:L (OCH 2 CH 2 )eCOOM) , alkyl sarcosinates (Cg-C ⁇ :L CON(CH 3 )R) , alkyl sulfo succinates (Cg-C 1:L OOCCH(SO3M) CH COOZ) , amine oxides (Cg- CuRR'NO) , glucose
• e and p are independently from 0 to 20 and e+p>0
• Z is M or R
• M is H or any counterion such as those known in the art, including Na, K,Li, NH4, amine
• X is a polyhydroxyhydrocarbyl having a linear hydrocarbyl chain with at least 3 hydroxyls directly connected to the chain, or an alkoxylated derivative thereof
• R, R' and R 1 ' are C ⁇ C5 alkyl groups, possibly functionalized with hydroxyl groups
• R and R' are preferably C ⁇ _-C 3 , most preferably methyl
• R' ' is preferably 2-hydroxyethyl or 2 hydroxypropyl
• G is saccharide, preferably glucose, and g is of from 1.5 to 8.
• compositions according to the present invention may comprise any of the above surfactants alone, or any combination thereof.
• Preferred short chain nonionic surfactants for use herein are alkyl alkoxylates according to the formula Cg- C 11 (OCH 2 CH 2 ) e (OCH CH CH 2 )pOH, where e and p representing respectively the degree of ethoxylation and propoxylation, are independently of from 0 to 20, and that e+p>0.
• Most preferred short chain nonionic surfactants for use herein are those where e and p are such that e+p is from 3 to 10, particularly those where p is 0 and e is 3 to 8.
• most preferred short chain nonionic surfactants for use herein are those where said short chain is a hydrocarbon chain comprising from 7 to 11 carbon atoms.
• Said preferred short chain nonionic surfactants for use herein can be manufactured by the processes well known to the man skilled in the art, such as condensation of the corresponding alcohol and alkylene oxide, but such short chain surfactants are more conveniently commercially available for instance from Sidobre under the trade name Mergital ® C 4 (C8E04) , from Kolb under the trade names Imbentin® AG/810/050 and AG/810/080 (respectively C8-10EO5 and C8- 10EO8) ; from Shell under the trade name Dobanol 91-2.5 (Cg- C n E02.5) , Dobanol 91-6 (C 9 -C 1:L E06) , Dobanol 91-4-6; from Vista Chemicals Vista 1012-52, from EXXON Asopol 91-4.6.
• Another preferred class of short chain nonionic surfactants are secondary alcohol ethoxylates according to the formula
• Preferred short chain anionic surfactants for use herein are C -C ] _ ⁇ alkyl sulfates and Cg-Cn alkyl sulfonates, Cg- C ] _ T _ betaines, Cg-C ⁇ _ ⁇ a ⁇ tine oxides and mixtures thereof. Most preferred are the Cg-Cg alkyl sulfates and sulfonates.
• Such short chain anionic surfactants can be made by well known sulphation or sulphonation processes followed by neutralization, but said anionic short chain surfactants are more conveniently commercially available, for instance from Rhone Poulenc under the trade name Rhodapon ® OLS, or from Witco under the trade name Witconate®.
• any alkaline materials is suitable for use in the present invention.
• Preferred alkaline materials are selected from the group consisting of potassium hydroxide, sodium hydroxide, ammonium hydroxide, ammonium silicate, sodium bicarbonate, borax, monoethanolamine borate, monoethanolamine triethanolamine, and mixtures thereof.
• the spot treating composition comprises from 0.1% to 10%, preferably 0.5% to 3% by weight of the alkaline material.
• the pH is greater than 8, more preferably greater than 9, and most preferably greater than 10. pH of the neat compositions was measured by means of a portable pH meter from Knick (Portamess 752) .
• long-chain what is meant herein is surfactants having an alkyl chain, the alkyl chain comprising 12, or more than 12 carbon atoms.
• Non-limiting examples of long-chain surfactants useful herein include the conventional C ⁇ -C ⁇ alkyl benzene sulfonates ("LAS") and primary, branched-chain and random c 12" c 20 alkyl sulfates (“AS”) , the C 12 -C 18 secondary (2,3) alkyl sulfates of the fomula CH 3 (CH 2 ) x (CH0S0 3 " M + ) CH 3 and CH 3 (CH 2 ) y (CH0S0 3 " M + )CH 2 CH 3 where x and (y+1) are integers of at least about 7, preferably at least about 9, and M is a water-solubilizing cation, especially sodium, unsaturated sulfates such as oleyl sulfate, the C_ -C 1 g alkyl alkoxy sulfates ("AE X S"; especially EO 1-7 ethoxy sulfates) , C 12 - C ⁇ _8 alkyl
• the conventional nonionic and amphoteric surfactants such as the C ⁇ _ 2 -C ⁇ _g alkyl ethoxylates ("AE") particulary preferred are C]_ 2 -C ⁇ g fatty alcohol polyglycol ethers or ethoxylated primary alcohols with EO 2-7 (especially ethoxylates and mixed ethoxy/propoxy) , C ⁇ 2 -C ] _g betaines and sulfobetaines ( "sultaines”) , C ] _ 2 -C; ⁇ _g amine oxides, and the like, can also be included in the overall compositions.
• the C]_ -C; ⁇ g N-alkyl polyhydroxy fatty acid amides can also be used.
• Typical examples include the C ] _ - C ] _ N-methylglucamides. See WO 9,206,154.
• Other sugar- derived surfactants include the N-alkoxy polyhhydroxy fatty acid amides, such as C ⁇ 2 -C ⁇ g N- (3-methoxypropyl) glucamide. The N-propyl through N-hexyl C]_ 2 -C ] _g glucamides can be used for low sudsing.
• C ⁇ -C o conventional soaps may also be used. If high sudsing is desired, the branched-chain C ] _ 2 - C ⁇ soaps may be used.
• Mixtures of anionic and nonionic surfactants are espicially useful. Other conventional useful surfactants are listed in standard texts.
• a particularly preferred composition according to the present invention comprises from 5% to 50% by weight of a mixed nonionic system comprising first, short-chain nonionic surfactant and second, long-chain nonionic surfactant. More preferably the composition comprises from 10% to 40% by weight of the mixed nonionic surfactant, and most preferably from 15% to 30%.
• the nonionic system preferably has an overall HLB value of from 2 to 16, more preferably from 8 to 14, most preferably from 9 to 10. Furthermore it is preferred that the ratio of first surfactant to second surfactant is from 1:10 to 10:1, more preferably from 1:3 to 3:1, and most preferably about 1:1.
• Bleaching agents may also be useful in the method of the present invention for treating bleachable stains.
• the bleaching agents may be incorporated into the compositions described above, or may be added as separate bleaching compositions. Peroxide bleaching agents are most preferred.
• the detergent composition of the present invention is useful in various known and conventional cleaning methods.
• a preferred cleaning method comprises the steps of applying the detergent composition to the spot or stain; placing an absorbent layer adjacent to the textile fabric in the region of the spot or stain; and applying heat, pressure, or heat and pressure to the textile fabric in the region of the spot or stain; so that some or all of the spot or stain is absorbed into the absorbent layer.
• a still more preferred cleaning method comprises the steps of :
• the application of heat or pressure, or both, may be achieved by any means, but is most preferably achieved by a hand-held device such as an iron.
• a conventional iron having a hot-plate fixed to a body is a highly preferred hand held device.
• the hot-plate is heated most commonly by electrical means, and may have a means for controlling the temperature.
• a supply of water or steam may also be provided by the iron.
• the absorbent layer is placed on a flat surface, such as an ironing board, and the stained or soiled textile fabric is laid flat on top of, and in contact with, the absorbent layer.
• the iron can then be easily applied to the textile fabric in the region of the stain or spot in order to ensure complete, or substantially complete, transfer of the stain or spot into the absorbent layer.
• the iron is preferably operated at a temperature of from 40°C to 200°C, more preferably from 40°C to 180°C.
• An alternative device for applying heat or pressure is a heated roller or any other heated applicator.
• the roller or applicator may also be provided with a supply of the detergent composition.
• Suitable applicators include a steam iron with suction brush attachment, such as that disclosed in EP-A-0 493 348, and a thermoelectric applicator, such as that disclosed in EP-A-0 552 397. Also suitable is a steam iron with atomiser, such as that disclose in EP-A-0 629 736 wherein the detergent composition may optionally be stored in the iron and delivered directly onto the textile fabrics by means of the atomiser.
• hydrophobic stains are first rendered hydrophilic by applying a detergent composition, optionally with a gentle rubbing action.
• Greasy stains which contain hydroxyl groups are deprotoneated at high pH and are thus rendered more easy to solubilize in the detergent solution. Higher pH can also induce soil peptization on some food stains. The stains are in effect broken down, and rendered easier to remove.
• the benefits of high pH can be particularly observed when before or after application of the detergent composition, another composition containing a bleaching species is applied on the stain. Indeed, conventional peroxide bleaching technologies have an increased reactivity with pH. Water is then applied to the stain, again, optionally with a gentle rubbing action. The stain is removed by laying the stained fabric adjacent to an absorbent layer. The stain, which has been rendered more hydrophilic by the treatment, is transferred to the absorbent layer.
• Textile fabrics are any materials made from cloth, including garments such as shirts, blouses, socks, skirts, trousers, jackets, underwear etc, and also including tablecloths, towels, curtains etc.
• the definition of textile fabrics as used herein does not include carpets and similar floor coverings.
• Textile fabrics which are to be used in the present invention are commonly made by weaving or knitting. Many different fibres may be used to produce woven, knitted or other types of textile fabric including synthetic fibres (such as polyester, polyamide, etc.) and natural fibres from plants (such as cotton, hemp) and from animals (such as wool, angora, silk) . Blends of different fibres are also commonly used.
• Example 1 Example 2 Example 3 Example 4
• Shellsol ® is a mixture of C -Cn isoparaffins with 5% aliphatic C7 ester.
• Dehydol is a fatty alcohol polyglycol ether octyl with an average of 4E0, supplied by Henkel.
• Dobanol is a ethoxylated primary alcohol with an average of 3E0, supplied by Shell.
• Alkyl sulphate, C8AS has an average of 8 carbon atoms in the alkyl chain.
• emulsions were prepared by mixing the components in the following order : Dobanol 25E3 was first mixed with the Shellsol solvent. The short-chain surfactant (alkyl sulphate or Dehydol) was then added followed by an aqueous solution of sodium hydroxide. Mixing was continued until a stable oil-in-water emulsion was formed.
• the short-chain surfactant alkyl sulphate or Dehydol
• Isopar K® which is a C]_Q _C 12 isoparaffinic hydrocarbon from Exxon
• Glidsol 66-2 which is a mixture of terpene hydrocarbon from
• Glidsol 100 which is a mixture of terpene hydrocarbon from
• Invert 2000 which is a citrus terpene/water emulsion from
• a set of polycotton swatches (50mm square) were soiled with make-up, chocolate sauce and tomato sauce. The stain was left to age for a day, in the dark, at normal room temperature (ca. 20°C, 60%RH) . Each soiled swatch was cleaned by the following method:
• the stained area was placed directly upon a strip of absorbent paper (the paper used was the absorbent core of a diaper) .
• Example 2 1 ml of the composition of Example 1 was dripped on to the stained area.
• the stained area was brushed with a conventional electrical toothbrush for 10 seconds (the toothbrush used, a Braun" dental d3 , was one normally intended for daily oral care) .
• Step 5. was repeated with a further 2ml of distilled water.

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• Chemical & Material Sciences (AREA)
• Engineering & Computer Science (AREA)
• Life Sciences & Earth Sciences (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Oil, Petroleum & Natural Gas (AREA)
• Wood Science & Technology (AREA)
• Organic Chemistry (AREA)
• Inorganic Chemistry (AREA)
• Textile Engineering (AREA)
• Detergent Compositions (AREA)
• Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
• Treatment Of Fiber Materials (AREA)

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• 1996
  • 1996-09-16 EP EP96932226A patent/EP0866893A4/en not_active Withdrawn
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  • 1996-09-16 WO PCT/US1996/014766 patent/WO1997020094A1/en active IP Right Grant
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  • 1996-09-16 WO PCT/US1996/014821 patent/WO1997020098A1/en active Application Filing
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• 1998
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