EP0379544A1 - Reinigungs- und desinfektionsmittel für gewebe - Google Patents

Reinigungs- und desinfektionsmittel für gewebe

Info

Publication number
EP0379544A1
EP0379544A1 EP89907238A EP89907238A EP0379544A1 EP 0379544 A1 EP0379544 A1 EP 0379544A1 EP 89907238 A EP89907238 A EP 89907238A EP 89907238 A EP89907238 A EP 89907238A EP 0379544 A1 EP0379544 A1 EP 0379544A1
Authority
EP
European Patent Office
Prior art keywords
composition
sodium
percent
composition according
glycol
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Withdrawn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
EP89907238A
Other languages
English (en)
French (fr)
Inventor
Reginald Keith Whiteley
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.)
Vax Appliances Ltd
Original Assignee
Vax Appliances Ltd
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 Vax Appliances Ltd filed Critical Vax Appliances Ltd
Publication of EP0379544A1 publication Critical patent/EP0379544A1/de
Withdrawn legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/48—Medical, disinfecting agents, disinfecting, antibacterial, germicidal or antimicrobial compositions
    • 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
    • C11D3/0031—Carpet, upholstery, fur or leather cleansers
    • 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

Definitions

  • This invention relates to a composition end method for reduction of ar eradication of ai lergens particularly dust mites in car p et.
  • Health problems related to bacteria and insects in household furnishings and fabrics are an increasing problem. Caroets, upholstery, wal l decorations, curtains, rugs, bedding, sheets, pil low slips, dooncs, and like fabrics and articles are recognised as capable of harbouring microbes, insets and other microscopic animals which give rise to health problems such as al lergies.
  • Such fabrics and articles are subjected to soiling in regular use and soil is frequently a food source and/or habitat for unwanted microbial or other life.
  • the household dust mite (Dermatophagoides spp.) is undoubtedly the most troublesome micro-organism found in the household and industrial environment.
  • the dust mite is widely implicated in human al lergies, especial ly in the nasal and upper respiratory area, although skin allergies are not infrequently reported. Allergies from the dust mite have also been linked with asthma in susceptible people. Moreover, allergies due to dust mites are regarded as a source of immune al lergy reactions both in young children and adults. Practical ways of control ling, if not eliminating, dust mites from within the average household is a major area of medical and scientific research, with wide potential for improving the health of an increasingly large proportion of the population.
  • Allergies due to the dust mite arise as a result of both living and dead mites.
  • the primary source of allergen is thought to be one or more of the glycoproteins found in significant concentration in the gut and the excreta produced by living mites.
  • Dead mites retain the al lergen within their digestive system and release the al lergen to the surrounding environment, expedited by such physical action as walking on the carpet.
  • Living mites excrete into their habitat up to 20 times a day. High populations of dust mites can therefore produce large quantities of al lergens which increase with time unless the growth of mites is restricted or the allergen is either removed or shielded or reacted with a composition which wil l prevent allergic reactions on contact with humans.
  • the female mite lays larvae within the pile of a carpet or in shielded areas of fabrics, and the larvae take from three to four weeks to hatch.
  • the coating of the larvae is impervious to most household chemicals, insecticides and detergents, like oocysts of some protozoan parasites, are very difficult to kill by chemicai means.
  • chemicai means chemicai means.
  • Australian Patent Application No. 44606/85 discloses a method of spraying carpets and fabrics with an alcoholic solution of a benzyl alcohol- tannic acid complex.
  • the specification teaches that the solution kil ls living dust mites and that tannic acid in the formulation contributes to neutralising the allergy reaction caused by the aforementioned al lergen found in both live and dead mites.
  • the solution has a number of serious drawbacks. Firstly, it is highly flammable; secondly, it is very difficult to apply evenly; thirdly, it does not kill larvae; and lastly, it leaves additional chemical residues in or on fabrics. Tannic acid residue discolours with age and causes light-coloured fabric to progressively discolour (by air oxidisation to coloured molecules) especial ly when the product is used repeatedly, and the tannic acid being highly polar may also serve to bind some soil already on textile surfaces. Further, the product has no cleaning action therefore what is sprayed onto surfaces remains where it is sprayed, once the benzyl alcohol has evaporated. The spray then becomes another chemical residue on the fabric surface, and, of itself a potential allergen.
  • dust mite allergen is not destroyed by oxidising agents, reducing agents, di- and triv ⁇ lent metal ions, alkalis, mild acids, aldehyde, or proteolytic enzymes.
  • dust mites are not "wetted" by common pretroleum solvents or by the types of surfactants found in normal household detergents or carpet cleaning operations. We believe this explains why dust mites survive normal household cleaning operations. Indeed, we have found th ⁇ t two widely used highly efficient fluoroc ⁇ rbon surfactants h C 120 and FC 99 (3M COMPANY, INC) both of which give very low surface and interfacial tensions do not "wet" mites.
  • Carpets in specialised areas such as in hospitals and health care institutions also suffer from particular problems from bacterially con ⁇ taminated spil lages and other distinctive hospital residues.
  • Carpets and fabrics can be fouled accidentally or by nursing procedures with human blood, body fizids, exudate, urine, faeces, vomitus, saliva and aerosols. These may be contaminated with a range of pathogenic bacteria and viruses capable of causing cross infection between patients. Dried bacteria in spore form may become air borne under foot traffic in hospital wards. It is therefore desirable that any method of cleaning fabric be capable of not only kil ling dust mites but, as well, capable of destroying the widest possible range of microbes resident within hospital fabrics and surfaces.
  • composition of the invention wil l render larvae infertile and, significantly, reduce the allergy response to the proteinaceous allergen found in mites and their excreta. It is believed that the latter occurrence is due to the constituent groups on the protein becoming hydrogen bonded to either or both the surfactants or solvents incorporated in composition of the present invention.
  • the present invention provides a new and major finding of significant practical benefit in control ling the population of mites, particularly dust mites.
  • a further object of the present invention is to provide a simple, safe detergent for washing fabrics particularly househouid fabrics such as sheets, pillow cases and curtains whilst erradicating microbes, particularly dust mites and their larvae.
  • acaricidal detergent composition comprising (a) a glycol or alkyl glycol, (b) one or more long chain alkyi alcohols, cyclic or aromatic alcohols, (c) an alkanolamine or amine, and fd) one or more surfactants.
  • a highly polar glycol, ether or ketone solvent is preferred. This may be chosen from ethylene glycol, propylene glycol, diethylene glycol, diproylene glycol, triethylene glycol or their respective mono or d ⁇ , methyl, ehtyl, propyl or butyl ethers, ethyl 3-ethoxypropionate or 3-methyl methoxy butanol and alkyl substituted propylene glycol ethers. The amount preferred depends upon ultimate surface activity and the need to solubilise other components with low water solubility within the micelle structure of the acaricidal composition.
  • the preferred glycols of the present invention are the common mono- and diethers of ethylene glycol, diethylene glycol, propvlene glycol, dipropylene glycol and triethylene glycol although other low molecular weight hydric solvents of similar range may also show similar effect and/or benefit including 3-methy! methoxy butanol and ethyl 3-etnoxypropionate.
  • the amount required varies with the quantity and relative proportion of other ingredients which mav require solubilization in an aqueous medium.
  • the quantity of glycol or like solvent may vary from 1.0 to 45.0 percent preferably from 1.0 to 5.0 percent in ready-to-use products and from 3.5 to 40.0 percent in dilutable products.
  • the preferred alcohols are aromatic alcohols, such as benzyl alcohol and 2-phenolethanol and phenoxy ethanol; although smal ler quantities of some aliphatic alcohols such as 4-chlorobutanol, n-pentanol, n-hexanol. n-octanol, n-decanol, and n-dodecanol may also be incorporated as part of the acaricidal system.
  • the specific alcohols referred to are only partly soluble or insoluble in water and it is therefore necessary to adjust the composition of the present invention by addition of a lower alcohol such as ethanol or isoproponol, a glycol or a known detergent hydrotrope such as urea, sodium xylene sulphonate or toluene suiphonate, to obtain solubilization of the less soluble alcohol.
  • a lower alcohol such as ethanol or isoproponol
  • a glycol or a known detergent hydrotrope such as urea, sodium xylene sulphonate or toluene suiphonate
  • the preferred percentage of sodium xylene sulphonate is between 0.05 percent for use in ready-to-use compositions and 25 percent for use in non-aqueous concentrates. More preferably, the percentage range is between 5.0 to 15.0 percent for use in aqueous dilutable concentrates.
  • terpenes are those derived from either pine, eucalyptus, peppermint, citrous or tea-tree oils, of which dipentene, terpineol, terpinolene, cineol, citral, citronel la, pinene, terpinen-4-ol and Y- terpene are most preferred.
  • glycol-type solvents with the previously nominated ingredients both to promote interfaciai behaviour and solubilise other less soluble chemicals in the compositions of the invention, including a smal l quantity of a terpene solvent which contributes to the ability of these formulations to overcome the hydrophobic effect of the skin of the mite and, presumably the natural impermeability of the outer layer of mite oocysts.
  • a water soluble amine or alkanolamine may be included.
  • the amine may be chosen from cyclic amines such as pyrolodones or either mono, di or triethanolamine or isopropanolamine, and the quantity adjusted according to the pH and interfacial behaviour desired in the formulation.
  • the amine is present 0.5 to 5.0 weight percent and the preferred pH of the detergent is in the range of 9.0 - 12.5 as a concentrate.
  • a smal l quantity of an alkanolamine such as monoethanolamine, isopropanolamine, diethanoiamine, triethanolamine, di- ethyl aminoethanol or other odourless amine or hydroxy amine also assists in the process of overcoming the resistance of mites and their larvae, presumably by contributing hydroxy I ions to aqueous solutions as well as providing additional solvency.
  • alkanolamine such as monoethanolamine, isopropanolamine, diethanoiamine, triethanolamine, di- ethyl aminoethanol or other odourless amine or hydroxy amine
  • glycol, an aromatic alcohol and alkanolamine is further assisted as a detergent and stain remover by the incorporation of a smal l quanity of naturally derived terpene. It is known by those skil led in the art to also become incorporated into micelles and thereby to contribute to increased detergency.
  • the quantity needed to solubilise the terpene in a particular composition will vary with the basic surfactant system, the choice of cyciic, aromatic or aliphatic alcohol, the dispersing system and the choice of glycol. In ready-to-use products it is preferred to use from 0.05 to 0.25 percent while in dilutable concentrates the amount wil l vary from 0.25 to 10.0 percent.
  • the composition of the present invention preferably has a surfactant system which has an extremely low interfacial tension to both polar and non- polar oils and solvents as well as surfaces.
  • the surfactant system preferably consists of two to five surfactants of more than one basic type which when blended together wil l display spontaneous emulsification of paraffin oil, lubricating oils and food oils like olive oil, which is quite surface active itself.
  • Such surfactant systems are generally found only in very specialised industrial degreasing material which are totally unsuitable for use as textile detergents or for use on protein based finishes such as leather and silk.
  • the total quantity of surfactant required in the composition ranges from 0.05 to 30.0 percent, typical ly 0.05 to 0.5 percent in ready-to-use compositions or from 2.5 to 30.0 percent in concentrates which are dilutable before use.
  • the surfactant substances may be anionic, non-ionic, amphoteric or catonic and preferably comprises in part a detergent having one or more chemicals to promote rapid release of common fabric stains but which also contribute to an efficient biocidal and pesticidal system.
  • the detergent is preferably a non-ionic detergent system which may contain one or more non- ionic detergents capable of efficiently emulsifying mineral oils, fats and cooking oils.
  • Such detergents may be either long chain alkyl (e.g.C Q - C , ⁇ ) substituted phenol polyethoxylate or an ethoxylated alcohol with an alkyl chain length from 8 to 20 saturated carbon atoms.
  • the non-ionic surfactants preferably comprise from ! to 27.5 percent of product depending on the formulation desired. Surface tension may vary from 25 to 40 dynes per centimetre.
  • Fatty acid alkanolamides may be incorporated with the non- ionic detergents, the two being compatible and occasional ly synergistic in de
  • the surfactant may comprise two or more anionic surfactants chosen from the group consisting of alkyl, aryl, sodium, calcium, magnesium, ammonium, potassium, mono, di or triethanolamine or isopropylamide, sodium olefin sulphonate, sodium alkyl or dialkyl naphthan- lene sulphonate, alkyl (C . -C .
  • sodium, calcium, magnesium, ammonium, or lithium sulphate sodium, potassium, calcium or other neutralised dioctyl sulphosuccinate, substituted, sulphonated or half ester of a sulphonated sulphosuccinate derivative, alkyl (C
  • the preferred amount of cationic surfactant is up to 35.0 percent of the
  • the cationic surfactant can be supplemented by a second biocide, preferably of a proton donor type which is not generally micelle attracted.
  • a second biocide preferably of a proton donor type which is not generally micelle attracted.
  • the preferred commercial biocides are formaldehyde, glyoxal, glutaraldehyde, succ ⁇ ndiaidehyde, crotond ⁇ aldehyde or a cyclic or semi-cyclic aldehyde or ketone; Dantogard and Glydant (Glyco Inc. USA), Kathon CG/1CP (Rhom & Haas Inc, USA), DMDH Hydantoin; Ger all I 15 (Sutton Laboratories Inc.
  • the amount of secondary biocide may vary from 0.0 ! to 0.25 percent for ready-to-use compositions to 0.5 to 7.5 percent for dilutable formulations.
  • ingredients may simultaneously serve more than one function in the composition.
  • certain surfactants may be acaricidal or bactericidal: certain alcohols may be both acaricidal and serve as solvents or co-solvents; the alkanolam ⁇ nes both assist in achieving detergency by raising the pH to value where the solvent wil l readily react with fatty acids and also assist in solubilising al lergen proteins.
  • compositions in accordance with the invention provide acaricidal compounds In a solvent/detergent system which effectively wets the surface of dust mites, their larvae and the al lergen proteins, and therefore brings the acaricide into intimate contact with the target material.
  • a micelle structure is set up in aqueous compositions as used, with the various solvents, glycols, alcohols, alkanolamine and surfactant largely associated in the micel les which contribute very efficiently to the interfacial behaviour of the composition.
  • compositions of the invention are most preferred to Incorporate in the compositions of the invention a conventional solids dispersing and suspending system, which wil l also soften hard water.
  • a conventional solids dispersing and suspending system which wil l also soften hard water.
  • Such systems are found in al l modern textile detergents, but in this case the system chosen must be compatible with the acaricidal and bactericidal aspect of each composition disclosed herein.
  • a soil suspending system is preferred to assist detergency, soften water and help prevent redeposition of soil once removed from the fabric.
  • a choice may be made from a polymeric phosphate, for example sodium tri- polyphosphate, tetrasodium pyrophosphate, tetrapotassium pyrophosphate, sodium hexametaphosphate or like neutralised phosphate polymer.
  • a chelating agent such as tetrasodium ethylene diamine acetate or analogues of substituted derivatives of ethylene diamine may be incorporated.
  • an inorganical ly neutralised polyacrylate or polyacrylate copolymers with proven soil suspension properties may be used.
  • the soil dispersing system can be of a type common to modern detergents and therefore well understood to those skil led in the art.
  • the chemicals chosen, however, should not contribute to resoiling, after use from unrinsed residues.
  • the system comprises a combination of either sodium carbonate, sodium citrate, sodium bicarbonate, a polymeric phosphate such as sodium tripolyphosphate, tetrapotassium pyrophosphate, tetrasodium pyrophosphate or sodium tetraphosphate, a chelating agent of the group ethylene diamine tetrac ⁇ tate, sodium nitrilo triacetate, disodium aluminium silicate, trisodium nitrilo triacetate, tetresodium ethyenediamine acetate or an equivalent substituted ethyene-diamine derivative, a polyacrylate disperson, polyvinyl pyrrolidone, sodium carboxymethyl cel lulose, a zeolite
  • the pH of the formulation should be adjusted in the range 7.5 to 1 2.5 by the use of either a polymeric phosphate or a buffer such as sodium citrate or a combination thereof, or by an alkanolamine chosen from aforementioned alternatives.
  • the pH at the recommended dilution for use should be in the range of 4.5 to 10.0, however in special cases, the pH may be made more acidic by use of a laundry sour such as ammonium, magnesium, or zinc f luoro silicate, the pH in the range of 3.0 to 5.0 thereby necessitating 0. 10 to 5.0 percent of sour in the particular composition.
  • the purpose of the acidic formula is to serve as a soil break or release agent, or as they are more commonly known a "prespray", before use of the principal composition.
  • a non-substantive dye may be included to give a distinctive colour to the composition, ft is also envisaged that appropriate quantities of perfume may be incorporated.
  • a hydrotrope such as sodium xylene sulphonate or low molecular weight alcohol such as ethanol or isopropanol, may be required as previously mentioned.
  • the amount of hydrotrope may vary according to the composition but wil l preferably be in the range of 1.0 to 25.0 percent of the composition.
  • the preferred hydrotropes are dependent on the formulation of the preferred compositions.
  • a method according to the invention comprises the steps of firstly prespraying the surface with the composition of the invention diluted I part with 3 to 6 parts of water and allowing the formulation to remain on the surface for I to 2 hours, secondly injection cleaning either by spraying under pressure or by flooding under vacuum a solution comprising I part of the composition of this invention to 15 to 40 parts of cold or warm water, then removing the excess solution by strong vacuum as fitted to commercial and domestic carpet cleaning machines.
  • the surface Is left moist and al lowed to dry over a 2 to 8 hour period wherein the composition remains active and continues to exert its acaricidal and bactericidal action.
  • the prespray may be omitted in the case of many domestic carpets in favour of a wet cleaning process of the kind in which a cleaning solution Is applied to the carpet and simultaneously picked-up after being drawn through the carpet pile.
  • a cleaning solution Is applied to the carpet and simultaneously picked-up after being drawn through the carpet pile.
  • Glycol Diethyleneglycol monoethyl ether 5.0%
  • Tetrapotassium pyrophosphate 1.0% EDTA, Na3 1 .0% Citric acid 1.8% Water balance.
  • Teric N50 - a commercially available non-ionic surfactant comprising nonyl phenol ethoxylate with 50 moles ethylene oxide.
  • Teric X 10 - a commercially available non-ionic surfactant comprising octyl phenol ethoxylate with 10 moles of ethyiene oxide (IC1)
  • Teric I 2A4 - a commercially available non-ionic surfactant comprising a synthetic straight chain (average C , -,) alcohol
  • Teric 9A5 - a commercially available non-ionic surfactant comprising a synthetic straight chain (Cg-C . , ) alcohol ethoxylate with 5 moles ethylene oxide (1CI)
  • Glycol Diethylene glycol monoethyl ether 18.0%
  • Glycol Diethyleneglycol monoethyl ether 40.0%
  • Gardiquat 1480 3.0% Glycol: Diethyleneglycol monoethyl ether 18.0%
  • Citric acid 1.0%
  • Glycol Diethyleneglycol monoethyl ether 15.0*3
  • Citric acid 1.0%
  • Glycol Diethyleneglycol monoethyl ether 17.5%
  • Citric acid 1.0%
  • Glycol Diethyleneglycol monoethyl ether 13.5%
  • glycol used throughout is diethyleneglycol monoethyl ether
  • other glycols as previously mentioned may be sustituted.
  • aromatic alcohol used throughout is benzyl alcohol, others could be substituted and for powder compositions long chain alkyl alcohols could be employed.
  • Such a mixture may be an equal part by weight of sodium bic ⁇ rbon ⁇ te and diatomaceous earth.
  • Other inorganic chemicals can be used such as sodium sulphate, sodium borate or sodium tripolyphosphate, as can some ground natural products such as cereals. Crumbed or spray dried polymers with high solvent absorbency are also suitable for this purpose. Powdered products made this way must be capable of solvent transference to allow cleaning to occur and to release the ⁇ caricide and biocide onto fibre surfaces. This type of formula is very important where water cannot be used on some types of textiles.
  • the basic surfactant system may be formulated by those experienced In the art in a number of different ways, provided that any residues left on fibres or drying wil l not cause either damage to textile fibres, destruction or partial loss of dyes, change in surface characteristics or promote resoiling after application of the preferred composition.
  • Examples I to X set out a number of ways in which a suitable surfactant system can be formulated but it is by no means exclusive.
  • any single molecular species of the surfactants nominated it is possible to vary either the length, branching or substitution of the hydrophobe section of the molecule or to vary either the degree of ethoxyl ⁇ ta ion by use of a mixture of ethylene and propylene oxides or propylene oxide alone to form non-ionic surfactants: or to react the terminal -OH group to form sulphate or phosphate. The latter are then neutralised by alkali salt, ammonia or an alkanolamide.
  • Various types of zwitterion surfactants are available each with distinctive surface-active properties and behaviour.
  • alkyl benzene sulphonates alkyl sulphates, olefin sulphonates, substituted alkyl napththa- lene sulphonates which may be neutralised by a mono or divalent cation or by ammonia or an alkanolamide.
  • compositions comprise combinations of:-
  • surfactants including non-ionic, cationic and some anionic for low foaming compositions: some anionic, alkanoiamides and amphoterics for moderate foaming compositions; and some amphoterics and sulphated or sulphonated surfactants for high foam compositions;
  • acaricides such as aromatic alcohols, C,-C-,.- alkyl alcohols
  • detergent builders such as phosphates, citrates, polyacylates, substituted celluloses, silicates, alumino silicates, polyinyl pyrollidones;
  • chelating agents such as tetrasodium EDTA, trisodium nitrilo triacetate
  • absorbents such as sodium carbonate, diatomaceous earth, crumbed plastics, where required.
  • Example IV The acaricidal performance of Example IV is shown in the fol lowing Table. This compares the properties of the commercial acaricide ALLERSEARCH DMS made according to Australian Patent Application No. 44606/85 with the composition of Example IV.
  • Example IV shows far superior action. Where ⁇ s ALLERSEARCH DMS does not kill oocysts, Example IV will prevent fertilisation whe ⁇ used in the recommended manner.
  • rapic * _car ⁇ cidal action is believed to arise primarily from the combination of aromatic alcohol, alkyl glycol and alkanolamine in an aqueous detergent system such that these materials are to a significant extent (but not wholly) taken up into micelle structures exhibiting the necessary interfacial behaviour to attach to the mites and their larvae.
  • the aromatic or long chain aliphatic alcohols exhibit the major acaricidal activity.
  • Aliphatic alcohols may be used primarily in a non-aqueous powdered composition because of their insufficient solubility in aqueous systems, for which aromatic alcohols are to be preferred.
  • the glycols assist in providing the required interfacial behaviour including contributing to detergency and solubilis ⁇ ng the allergens of the dust mites.
  • the alkanolamine also assists in solubilizing the allergens and raises the pH of the system to promote reaction with fatty acids, thus further improving detergency.
  • An additional organic solvent is useful for improving the cleaning action, particularly aromatic solvents such as terpenes which are themselves potentially acaricidal.
  • a method according to the invention is as follows:-
  • the carpet Is presprayed lightly (so that it is evenly moist but not wet) with the product say Example IV, diluted 1 part with 3 to 6 parts of tap water. This is allowed to stay on the carpet for 1 to 2 hours, during which time it both precleans and releases spots and stains as well as penetrates to the base of the carpet or fabric.
  • the carpet is then injection cleaned with a machine which injects detergent into carpet then withdraws it under vacuum to a recovery tank using a mixture of I part Example IV and 15 to 40 parts of water.
  • a wide variety of heavy industrial injection (steam) cleaning machines can also be used depending upon the concentration, fibre type and location of carpet. In some cases it is practical to eliminate the prespraying step for normal domestic carpet cleaning. The stronger solution may, instead, be used for prespotting spots and stains immediately before wet washing.
  • Example IV After cleaning the carpet is left moist with Example IV which gradually dries over a 2 to 8 hour period depending on weather and machine used. During the drying period the product e.g. Example IV, remains active and continues to exert its acaricidal and bactericidal action. As mentioned earlier, when particular ⁇ badly soiled carpet is encountered it may be advantageous to use a mildly acid "sour type" prespray to release aged, packed and tightly bound soil prior to injection (steam) cleaning. The formulation of Example X describes this type of acaricidal prespray which can be used also in exceptional ly hard water.

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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)
  • Agricultural Chemicals And Associated Chemicals (AREA)
EP89907238A 1988-06-21 1989-06-20 Reinigungs- und desinfektionsmittel für gewebe Withdrawn EP0379544A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AUPI888588 1988-06-21
AU8885/88 1988-06-21

Publications (1)

Publication Number Publication Date
EP0379544A1 true EP0379544A1 (de) 1990-08-01

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP89907238A Withdrawn EP0379544A1 (de) 1988-06-21 1989-06-20 Reinigungs- und desinfektionsmittel für gewebe

Country Status (6)

Country Link
EP (1) EP0379544A1 (de)
JP (1) JPH03501271A (de)
KR (1) KR900701995A (de)
CN (1) CN1039614A (de)
DK (1) DK44790A (de)
WO (1) WO1989012673A1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103774425A (zh) * 2013-12-31 2014-05-07 吴江市七都镇庙港雅迪针织制衣厂 一种丝绸织物防螨剂
CN103774426A (zh) * 2013-12-31 2014-05-07 吴江市七都镇庙港雅迪针织制衣厂 丝绸织物抗菌防霉整理剂

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DK44790D0 (da) 1990-02-20
CN1039614A (zh) 1990-02-14
DK44790A (da) 1990-02-20
WO1989012673A1 (en) 1989-12-28
KR900701995A (ko) 1990-12-05

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