EP0561842B1 - Carpet-cleaning agent - Google Patents

Carpet-cleaning agent Download PDF

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Publication number
EP0561842B1
EP0561842B1 EP91920831A EP91920831A EP0561842B1 EP 0561842 B1 EP0561842 B1 EP 0561842B1 EP 91920831 A EP91920831 A EP 91920831A EP 91920831 A EP91920831 A EP 91920831A EP 0561842 B1 EP0561842 B1 EP 0561842B1
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EP
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Prior art keywords
weight
cleaning
water
oleic acid
textile
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EP91920831A
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German (de)
French (fr)
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EP0561842A1 (en
Inventor
Rainer Osberghaus
Karl-Heinz Rogmann
Herta Tuchermann
Ansgar Behler
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Henkel AG and Co KGaA
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Henkel AG and Co KGaA
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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
    • C11D3/0005—Other compounding ingredients characterised by their effect
    • C11D3/0026—Low foaming or foam regulating 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
    • 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
    • C11D1/28—Sulfonation products derived from fatty acids or their derivatives, e.g. esters, amides
    • 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

Definitions

  • the invention relates to a low-foam carpet cleaning agent and a method for cleaning large-area textile surfaces using such an agent.
  • Powdery products are often used to clean carpets and permanently installed carpets on site, which are sprinkled on the carpets and vacuumed again after mechanical treatment. A more intensive cleaning is carried out with aqueous cleaning liquors, which are applied to the carpets and after a certain exposure time, if necessary using mechanics, are removed from the carpets together with the dirt.
  • a cleaning solution is first sprayed onto the carpets and worked into the carpets with the aid of brushes or similar mechanisms before the carpets are suctioned off again from the cleaning solution or the foam that has been created by the mechanics , are exempted
  • a liquid extraction process in which the cleaning agent solution is sprayed onto the carpet via a pressure nozzle, in order to then be immediately sucked off the carpet by a suction nozzle located a few centimeters behind the pressure
  • Such devices which have recently been offered for carpet cleaning in the household, essentially consist of a storage container which contains a generally aqueous surfactant solution through a hose is sprayed onto the textile surface to be cleaned via a nozzle and penetrates more or less deeply into the material to be cleaned.
  • the cleaning effect can be increased by a brush attached to the end of the hose near the nozzle.
  • There is a suction device in the working direction behind the nozzle which conveys the used cleaning agent solution into a dirty water tank. So that the sucked-in dirty water does not overflow, there is a float contact in the dirty water tank, which switches off the pumps for spraying the cleaning agent solution and sucking in the dirty water when the tank is full, so that the dirty water tank can be emptied.
  • WO-A-9 009 181 describes the use of alkali metal, ammonium and / or amine salts of monocarboxylic acid polyoxyalkyl ester sulfonic acids as low-foaming wetting agents in aqueous alkaline treatment agents for textile fabrics or yarns.
  • the task was therefore to develop a low-foaming cleaning agent for carpet cleaning that is suitable for use in spray extraction cleaning devices.
  • This object is achieved by using sulfonated oleic acid in the form of an alkali or ammonium salt, in particular in the form of the disodium salt, as a surfactant component in the carpet cleaning agents.
  • the invention therefore also relates to carpet cleaning agents which contain the salts mentioned together with other active cleaning agents.
  • the carpet cleaning agents according to the invention are essentially aqueous concentrates which can be used as such or after dilution with water for textile cleaning. They are characterized by good cleaning performance with extremely low foaming even under high mechanical loads.
  • Another object of the invention is a process for cleaning large-area textiles, especially carpets, with the aid of surfactant-containing aqueous solutions, in which the textile is impregnated with such a solution and optionally mechanically treated, the solution is then immediately largely removed from the textile by suction and if desired, the textile is dried, the process being characterized in that a cleaning solution is used which has been prepared by diluting a carpet cleaning agent which contains an alkali metal or ammonium salt of sulfonated oleic acid as the surfactant component.
  • the term "immediately after" when using a spray extraction device results from the distance between the pressure and suction nozzles, which is normally about 1 cm to 15 cm, and the speed, usually 0.5 cm per second to 50 cm per second which the nozzle strips are moved over the textile to be cleaned, and usually means a period of less than 2 seconds, in particular less than 1 second.
  • the oleic acid derivatives used according to the invention as the surfactant component are neutralized sulfonation products. These are known, for example, from British Patent GB 1,278,421 and German Laid-Open Specification 39 26 344. You can, as described there, by reacting oleic acid or technical mixtures containing it, such as are available from renewable raw materials, in particular beef tallow, sunflower oil, rapeseed oil or olive oil, with gaseous sulfur trioxide and subsequent hydrolysis and neutralization with aqueous bases, in particular Solutions of alkali or ammonium hydroxides are prepared.
  • the mixtures obtained from alkenylsulfonic acid carboxylic acid salts and hydroxyalkylsulfonic acid carboxylic acid salts can, depending on the origin of the technical oleic acid starting material, more or less large proportions of salts of saturated fatty acids and sulfonation products contain other unsaturated fatty acids which generally do not impair the advantageous action of the sulfonated oleic acid in the cleaning agents according to the invention.
  • Such sulfonated oleic acid salts are preferably present in the carpet cleaning agents according to the invention in amounts of from 10% by weight to 80% by weight, in particular from 15% by weight to 50% by weight.
  • the agents according to the invention can contain other surfactants which are as low in foam as possible and which are primarily nonionic and, preferably, anionic surfactants, although in individual cases the use of other types of surfactants may be appropriate .
  • Suitable anionic surfactants are in particular those of the sulfate or sulfonate type, but other types such as soaps, long-chain N-acyl sarcosinates, salts of fatty acid cyanamides or salts of ether carboxylic acids, as are obtainable from long-chain alkyl or alkylphenyl polyglycol ethers and chloroacetic acid, can also be used .
  • the anionic surfactants are preferably used in the form of the sodium salts.
  • Particularly suitable surfactants of the sulfate type are the sulfuric acid monoesters of long-chain primary alcohols of natural and synthetic origin with 10 to 20 C atoms, that is to say of fatty alcohols, such as, for example, coconut fatty alcohols, tallow fatty alcohols, oleyl alcohol, or the C 10 to C 20 oxo alcohols and the like of secondary alcohols of this chain length.
  • fatty alcohols such as, for example, coconut fatty alcohols, tallow fatty alcohols, oleyl alcohol, or the C 10 to C 20 oxo alcohols and the like of secondary alcohols of this chain length.
  • the sulfation products of the reaction products of C 4 to C 12 alcohols alkoxylated with 1 to 12 mol of ethylene oxide with 1,2-epoxyalkanes as can be obtained, for example, by the process described in German Offenlegungsschrift DE 37 23 354.
  • the sulfuric acid monoesters of the aliphatic primary or secondary alcohols alkoxylated with 1 to 6 moles of ethylene oxide are suitable.
  • Usable surfactants of the sulfonate type are the alkanesulfonates which can be obtained from C 12 - to C 18 -alkanes by sulfochlorination or sulfoxidation and subsequent hydrolysis or neutralization, and also the olefin sulfonates as obtained from long-chain monoolefins with a terminal or internal double bond by sulfonating with gaseous Sulfur trioxide and subsequent alkaline or acidic hydrolysis of the sulfonation products.
  • Suitable nonionic surfactants for the process according to the invention are, in particular, addition products of 1 to 30, preferably 3 to 15, moles of ethylene oxide with 1 mole of a compound having 10 to 20 carbon atoms from the group of alcohols, alkylphenols, carboxylic acids and carboxamides.
  • the addition products of ethylene oxide and / or propylene oxide onto long-chain primary or secondary alcohols, such as, for example, fatty alcohols or oxo alcohols, are particularly important.
  • the well-known high-foaming oligoglycosides of the alcohols mentioned are also suitable.
  • Such additional surfactants can be contained in the agents according to the invention preferably in amounts not exceeding 40% by weight, in particular from 5% by weight to 20% by weight.
  • the carpet cleaning agents according to the invention contain water as the preferred solvent, preferably in amounts of 20 to 90% by weight, water-miscible organic solvents can be present in minor amounts. These include in particular alcohols with 1 to 4 carbon atoms, glycols with 2 to 4 carbon atoms and the di- and triglycols which can be derived therefrom and the corresponding glycol ethers.
  • Such solvents are, for example, methanol, ethanol, propanol, isopropanol, tert-butanol, ethylene glycol, propylene glycol, butylene glycol, diethylene glycol, triethylene glycol, dipropylene glycol, diethylene glycol monomethyl ether, diethylene glycol monoethyl ether, diethylene glycol monopropyl ether, ethylene glycol monobutyl ether and diethylene glycol monobutyl ether and diethylene glycol monobutyl ether.
  • Such solvents are preferably contained in the agents according to the invention not more than 10% by weight, in particular from 1% by weight to 7% by weight.
  • the agent according to the invention can contain other auxiliaries customary in carpet cleaning agents.
  • auxiliaries customary in carpet cleaning agents.
  • Preservatives, anti-pollution agents, inorganic salts, antistatic substances, colorants and perfumes are particularly worth mentioning.
  • auxiliary substances which are intended to reduce the re-soiling of the carpet are primarily water-soluble or water-dispersible polymers which do not lead to films after drying, but to brittle residues.
  • Such substances which prevent re-soiling are contained in the agents according to the invention in amounts between 2 and 30% by weight, in particular between 5% by weight and 20% by weight.
  • Quaternary ammonium compounds which attach to the textile material are usually used as active ingredients which are intended to provide the carpet with an antistatic finish.
  • Inorganic salts can also have an antistatic effect on the carpet.
  • the content of such antistatic agents in the cleaning agents according to the invention is preferably not more than 1% by weight, in particular from 0.01% by weight to 0.5% by weight.
  • the heavy metal complexing agents which can be used in the agents according to the invention are primarily aminopolycarboxylic acids and polyphosphonic acids or their salts, for example nitrilotriacetic acid and hydroxyethane diphosphonic acid.
  • Such complexing agents are contained in the cleaning agents according to the invention preferably in amounts of not more than 10% by weight, in particular from 0.5% by weight to 2% by weight.
  • Preservative, dye and perfume in the carpet cleaning agents according to the invention are preferably in amounts of not more than 3% by weight, in particular from 0.01% to 1% by weight and particularly preferably from 0.1% by weight to Contain 0.5 wt .-%.
  • the production of the concentrates according to the invention has no difficulties. It can be done by simply mixing the components, which can be present as such or in the form of aqueous solutions.
  • a ready-to-use cleaning solution can easily be prepared by diluting the cleaning agents according to the invention with water.
  • a characteristic feature of the method according to the invention is the composition of the cleaning solution used, which is obtained by diluting the carpet cleaning agent concentrate according to the invention with water.
  • the pH of the ready-to-use solution is preferably between 4 and 12, in particular between 6 and 8.
  • the method according to the invention preferably uses a spray extraction device described above. After the detergent solution has been removed, the carpet is dried. This can be done by leaving it alone in the air, which can mean drying times of up to 2 days. However, it is also possible to accelerate drying by using air blowers or heat radiators.
  • the new cleaning process has its particular advantages when cleaning carpets on site, since permanently installed carpets are not accessible to the cleaning processes for movable textiles.
  • the method according to the invention has the same advantages in the case of other textiles which are not readily accessible to a conventional washing process, such as wall coverings and upholstered furniture. Because of its ease of use, it also offers advantages over the washing processes which are very complex in the case of textiles of this type when it is used on movable carpets.
  • the method according to the invention is characterized not only by a good result in surface cleaning, but also by a low tendency towards re-soiling of the cleaned textile. Pretreatment of the textiles to be cleaned is normally not necessary.
  • the process is suitable for carpets made of synthetic fibers, such as polyamide, as well as for relatively sensitive textiles made of natural fibers, such as wool.
  • Example 1 Preparation of the disodium salt of sulfonated oleic acid
  • the disodium salt of sulfonated oleic acid used for the preparation of the cleaning agents according to the invention was obtained by sulfonating a technical oleic acid from beef tallow (composition: 70.7% by weight oleic acid, 11.8% by weight linoleic acid, the rest other C 12 - to C 20 fatty acids; acid number 200.4, iodine number 98.3) with sulfur trioxide and subsequent neutralization and hydrolysis.
  • the sulfonation was carried out in a tubular glass falling film reactor (length 110 cm, inner diameter 6 mm) surrounded by a heating or cooling jacket, which was provided at the head with a feed device for the oleic acid and a gas inlet tube.
  • the oleic acid was applied at a constant rate of 550 g per hour.
  • Gaseous sulfur trioxide (produced by heating oleum) was diluted with nitrogen to a concentration of 5 vol.% Sulfur trioxide and introduced into the reactor at such a rate that the molar ratio of olefinic double bonds present in technical oleic acid (calculated from the iodine number ) to sulfur trioxide was 1: 0.9.
  • the reaction temperature was kept at 50 ° C. with the aid of a water circuit through the reactor jacket. After leaving the reactor, the reaction mixture was collected in a glass vessel which contained 25% by weight aqueous sodium hydroxide solution and heated to 90 ° C. at a pH of 8 to 9 for 2 hours.
  • the desired disodium salt (T1) was obtained in a concentration of 60% by weight in water.
  • the cleaning agents according to the invention characterized by their composition in Table 1 below were produced by simply mixing the constituents.
  • Table 1 Composition of the agents according to the invention [% by weight] M1 M2 M3 M4 T1 60 25th 20th 24th 7-fold ethoxylated C 9/11 alcohol (Lutensol (R) ON 70, manufacturer BASF) - 20th - 6 C 12/14 alkyl glucoside, degree of polymerization 1.4 - - 20th - 6-fold ethoxylated C 12/14 fatty acid (Eumulgin (R) Ti 60, manufacturer Henkel) - - - 8th Li-C 8/12 alkyl sulfate (Texapon (R) LLS, manufacturer Henkel) - - 5 - Sulphated hydroxyether a) - 10th - 8th Na nitrilotriacetate - 0.2 - 0.8 Na tripolyphosphate - - 3rd - Poly (methyl methacrylate)
  • a polyamide velor carpet with practical dirt from walking was used using a Floordress (R) spray extraction device SB 2412 with aqueous solutions, each containing 1% by weight of agents M1 to M4 according to the invention.
  • R Floordress

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Abstract

PCT No. PCT/EP91/02274 Sec. 371 Date Jun. 9, 1993 Sec. 102(e) Date Jun. 9, 1993 PCT Filed Dec. 2, 1991 PCT Pub. No. WO92/10558 PCT Pub. Date Jun. 25, 1992.A water-based carpet cleaning composition containing 10% to 80% by weight of an alkali metal or ammonium salt of sulfonated oleic acid, up to 40% by weight of additional surfactant, up to 10% by weight of water-miscible organic solvent, up to 10% by weight of heavy metal complexing agent, 2 to 30% by weight of resoiling inhibitor, up to 1% by weight of antistatic agent, up to 3% by weight of preservatives, dyes and fragrances, and the balance, water.

Description

Die Erfindung betrifft ein schaumarmes Teppichreinigungsmittel und ein Verfahren zur Reinigung von großflächigen textilen Oberflächen unter Verwendung eines derartigen Mittels.The invention relates to a low-foam carpet cleaning agent and a method for cleaning large-area textile surfaces using such an agent.

Zur Reinigung von Teppichen und festverlegten Teppichböden an Ort und Stelle werden oft pulverförmige Produkte verwendet, die auf die Teppiche aufgestreut und nach einer mechanischen Behandlung wieder abgesaugt werden. Eine intensivere Reinigung erfolgt mit wäßrigen Reinigungsflotten, die auf die Teppichböden aufgetragen und nach einer gewissen Einwirkungszeit, gegebenenfalls unter Anwendung von Mechanik, zusammen mit dem Schmutz wieder von den Teppichen entfernt werden. Dabei unterscheidet man zwischen dem sogenannten Shampoonierverfahren, bei dem zunächst eine Reinigungslösung auf die Teppiche aufgesprüht und mit Hilfe von Bürsten oder ähnlicher Mechanik in die Teppiche eingearbeitet wird, bevor die Teppiche durch Absaugen wieder von der Reinigungslösung beziehungsweise dem Schaum, der durch die Mechanik entstanden ist, befreit werden, und einem Flüssigextraktionsverfahren, bei dem die Reinigungsmittel lösung über eine Druckdüse auf den Teppich gesprüht wird, um unmittelbar anschlieBend durch eine wenige Zentimeter hinter der Druckdüsenleiste liegende Saugdüse vom Teppich abgesaugt zu werden. Bevorzugt im gewerblichen Bereich werden mit Hilfe eines derartigen Verfahrens großflächige textile Oberflächen, insbesondere Bodenbeläge oder Polsterstoffe, unter Einsatz von Sprühextraktionsreinigungsgeräten, wie sie beispielsweise in der schweizerischen Patentschrift CH 646 044 beschrieben sind, gereinigt. Derartige Geräte, die in neuerer Zeit auch für die Teppichreinigung im Haushaltsbereich angeboten werden, bestehen im wesentlichen aus einem Vorratsbehälter, der eine in der Regel wäßrige Tensidlösung enthält, die durch einen Schlauch über eine Düse auf die zu reinigende textile Oberfläche gesprüht wird und die mehr oder weniger tief in das zu reinigende Material eindringt. Durch eine am Schlauchende in der Nähe der Düse angebrachte Bürste kann die Reinigungswirkung erhöht werden. In Arbeitsrichtung hinter der Düse befindet sich eine Absaugvorrichtung, welche die gebrauchte Reinigungsmittellösung in einen Schmutzwasserbehälter befördert. Damit das angesaugte Schmutzwasser nicht überläuft, befindet sich im Schmutzwasserbehälter ein Schwimmerkontakt, der bei gefülltem Behälter die Pumpen für das Versprühen der Reinigungsmittellösung und das Ansaugen des Schmutzwassers abschaltet, so daß der Schmutzwasserbehälter entleert werden kann. Bei einem derartigen Reinigungsverfahren werden hohe Anforderungen an die Schaumfreiheit der in den zu verwendenden Reinigungsmitteln eingesetzten Tenside gestellt, da die Reinigungslösungen durch relativ enge Düsen auf die zu reinigenden Oberflächen gesprüht und praktisch sofort danach aufgesaugt werden. Eventuell entstehender Schaum gelangt dabei ebenfalls in den Schmutzwasserbehälter und verhindert durch sein Volumen die optimale Ausnutzung der Aufnahmekapazität dieses Behälters.Powdery products are often used to clean carpets and permanently installed carpets on site, which are sprinkled on the carpets and vacuumed again after mechanical treatment. A more intensive cleaning is carried out with aqueous cleaning liquors, which are applied to the carpets and after a certain exposure time, if necessary using mechanics, are removed from the carpets together with the dirt. A distinction is made between the so-called shampooing process, in which a cleaning solution is first sprayed onto the carpets and worked into the carpets with the aid of brushes or similar mechanisms before the carpets are suctioned off again from the cleaning solution or the foam that has been created by the mechanics , are exempted, and a liquid extraction process in which the cleaning agent solution is sprayed onto the carpet via a pressure nozzle, in order to then be immediately sucked off the carpet by a suction nozzle located a few centimeters behind the pressure nozzle strip. Preferably in the commercial sector, such a process is used to clean large-area textile surfaces, in particular floor coverings or upholstery materials, using spray extraction cleaning devices, as described, for example, in Swiss Patent CH 646 044. Such devices, which have recently been offered for carpet cleaning in the household, essentially consist of a storage container which contains a generally aqueous surfactant solution through a hose is sprayed onto the textile surface to be cleaned via a nozzle and penetrates more or less deeply into the material to be cleaned. The cleaning effect can be increased by a brush attached to the end of the hose near the nozzle. There is a suction device in the working direction behind the nozzle, which conveys the used cleaning agent solution into a dirty water tank. So that the sucked-in dirty water does not overflow, there is a float contact in the dirty water tank, which switches off the pumps for spraying the cleaning agent solution and sucking in the dirty water when the tank is full, so that the dirty water tank can be emptied. Such a cleaning process places high demands on the foam-free nature of the surfactants used in the cleaning agents to be used, since the cleaning solutions are sprayed onto the surfaces to be cleaned through relatively narrow nozzles and are then sucked up practically immediately thereafter. Any foam that is formed also gets into the dirty water tank and its volume prevents the optimal use of the capacity of this tank.

Zur Vermeidung dieses Problems ist beispielsweise in W. Lutz, Lexikon für Reinigungs- und Hygienetechnik, 3. Auflage 1985, Seite 471, die automatische Zudosierung von Entschäumern zur gebrauchten Reinigungslösung vor deren Eintritt in den Schmutzwasseraufnahmebehälter vorgeschlagen worden. Dies erfordert einerseits die Modifikation des üblichen Sprühextraktionsgeräts durch Einbau eines Entschäumer-Injektors und andererseits den Einsatz eines zusätzlichen Mittels, das zu dem eigentlichen Reinigungsschritt nichts beiträgt.In order to avoid this problem, for example in W. Lutz, Lexikon für Reinigungs- und Hygienetechnik, 3rd edition 1985, page 471, the automatic addition of defoamers to the used cleaning solution before their entry into the dirty water storage container has been proposed. On the one hand, this requires the modification of the usual spray extraction device by installing a defoamer injector and, on the other hand, the use of an additional agent that does not contribute to the actual cleaning step.

In WO-A-9 009 181 wird die Verwendung von Alkali-, Ammonium- und/oder Aminsalzen von Monocarbonsäurepolyoxyalkylester-Sulfonsäuren als schaumarme Netzmittel in wäßrigen alkalischen Behandlungsmitteln für textile Flächengebilde oder Garne beschrieben.WO-A-9 009 181 describes the use of alkali metal, ammonium and / or amine salts of monocarboxylic acid polyoxyalkyl ester sulfonic acids as low-foaming wetting agents in aqueous alkaline treatment agents for textile fabrics or yarns.

Es bestand daher die Aufgabe, ein möglichst schaumarmes Reinigungsmittel für die Teppichreinigung zu entwickeln, das für den Einsatz in Sprühextraktionsreinigungsgeräten geeignet ist.The task was therefore to develop a low-foaming cleaning agent for carpet cleaning that is suitable for use in spray extraction cleaning devices.

Diese Aufgabe wird gelöst durch die Verwendung sulfonierter Ölsäure in Form eines Alkali- oder Ammoniumsalzes, insbesondere in Form des Di-Natriumsalzes, als Tensidkomponente in den Teppichreinigungsmitteln. Gegenstand der Erfindung sind deshalb auch Teppichreinigungsmittel, die die genannten Salze zusammen mit weiteren reinigungsaktiven Wirkstoffen enthalten.This object is achieved by using sulfonated oleic acid in the form of an alkali or ammonium salt, in particular in the form of the disodium salt, as a surfactant component in the carpet cleaning agents. The invention therefore also relates to carpet cleaning agents which contain the salts mentioned together with other active cleaning agents.

Die erfindungsgemäßen Teppichreinigungsmittel sind im wesentlichen wäßrige Konzentrate, die als solche oder nach Verdünnen mit Wasser zur Textilreinigung eingesetzt werden können. Sie zeichnen sich durch gute Reinigungsleistung bei extrem niedriger Schaumbildung selbst unter hoher mechanischer Belastung aus.The carpet cleaning agents according to the invention are essentially aqueous concentrates which can be used as such or after dilution with water for textile cleaning. They are characterized by good cleaning performance with extremely low foaming even under high mechanical loads.

Ein weiterer Gegenstand der Erfindung ist ein Verfahren zur Reinigung von großflächigen Textilien, insbesondere Teppichböden, mit Hilfe tensidhaltiger wäßriger Lösungen, bei dem das Textil mit einer derartigen Lösung getränkt und gegebenenfalls mechanisch behandelt wird, die Lösung unmittelbar anschließend durch Absaugen weitgehend vom Textil entfernt wird und das Textil gewünschtenfalls getrocknet wird, wobei das Verfahren dadurch gekennzeichnet ist, daß man eine Reinigungslösung einsetzt, die durch Verdünnen eines Teppichreinigungsmittels, das ein Alkali- oder Ammoniumsalz der sulfonierten Ölsäure als Tensidkomponente enthält, hergestellt worden ist. Der Ausdruck "unmittelbar anschließend" ergibt sich bei der Verwendung eines Sprühextraktionsgerätes aus dem Abstand zwischen Druck- und Saugdüsen, der normalerweise etwa 1 cm bis 15 cm beträgt, und der Geschwindigkeit, normalerweise 0,5 cm pro Sekunde bis 50 cm pro Sekunde, mit der die Düsenleisten über das zu reinigende Textil bewegt werden, und bedeutet einen Zeitraum von in der Regel unter 2 Sekunden, insbesondere unter 1 Sekunde.Another object of the invention is a process for cleaning large-area textiles, especially carpets, with the aid of surfactant-containing aqueous solutions, in which the textile is impregnated with such a solution and optionally mechanically treated, the solution is then immediately largely removed from the textile by suction and if desired, the textile is dried, the process being characterized in that a cleaning solution is used which has been prepared by diluting a carpet cleaning agent which contains an alkali metal or ammonium salt of sulfonated oleic acid as the surfactant component. The term "immediately after" when using a spray extraction device results from the distance between the pressure and suction nozzles, which is normally about 1 cm to 15 cm, and the speed, usually 0.5 cm per second to 50 cm per second which the nozzle strips are moved over the textile to be cleaned, and usually means a period of less than 2 seconds, in particular less than 1 second.

Bei den erfindungsgemäß als Tensidkomponente verwendeten Ölsäurederivaten handelt es sich um neutralisierte Sulfonierungsprodukte. Diese sind zum Beispiel aus der britischen Patentschrift GB 1 278 421 und der deutschen Offenlegungsschrift 39 26 344 bekannt. Sie können, wie dort beschrieben, durch Umsetzung von Ölsäure oder technischen Gemischen, die diese enthalten, wie sie aus nachwachsenden Rohstoffen, insbesondere Rindertalg, Sonnenblumenöl, Rapsöl oder Olivenöl, zugänglich sind, mit gasförmigem Schwefeltrioxid und anschlieBende Hydrolyse und Neutralisation mit wäßrigen Basen, insbesondere Lösungen von Alkali- oder Ammoniumhydroxiden, hergestellt werden. Die dabei erhaltenen Gemische aus Alkenylsulfonsäurecarbonsäure-Salzen und Hydroxyalkylsulfonsäure-carbonsäure-Salzen können in Abhängigkeit der Herkunft des technischen Ölsäure-Ausgangsmaterials mehr oder weniger große Anteile an Salzen gesättigter Fettsäuren und Sulfonierungsprodukten anderer ungesättigter Fettsäuren enthalten, die die vorteilhafte Wirkung der sulfonierten Ölsäure in den erfindungsgemäßen Reinigungsmitteln in der Regel nicht beeinträchtigen. Derartige sulfonierte Ölsäuresalze sind in den erfindungsgemäßen Teppichreinigungsmitteln vorzugsweise in Mengen von 10 Gew.-% bis 80 Gew.-%, insbesondere von 15 Gew.-% bis 50 Gew.-% enthalten.The oleic acid derivatives used according to the invention as the surfactant component are neutralized sulfonation products. These are known, for example, from British Patent GB 1,278,421 and German Laid-Open Specification 39 26 344. You can, as described there, by reacting oleic acid or technical mixtures containing it, such as are available from renewable raw materials, in particular beef tallow, sunflower oil, rapeseed oil or olive oil, with gaseous sulfur trioxide and subsequent hydrolysis and neutralization with aqueous bases, in particular Solutions of alkali or ammonium hydroxides are prepared. The mixtures obtained from alkenylsulfonic acid carboxylic acid salts and hydroxyalkylsulfonic acid carboxylic acid salts can, depending on the origin of the technical oleic acid starting material, more or less large proportions of salts of saturated fatty acids and sulfonation products contain other unsaturated fatty acids which generally do not impair the advantageous action of the sulfonated oleic acid in the cleaning agents according to the invention. Such sulfonated oleic acid salts are preferably present in the carpet cleaning agents according to the invention in amounts of from 10% by weight to 80% by weight, in particular from 15% by weight to 50% by weight.

Die erfindungsgemäßen Mittel können zusätzlich zu dem Alkali- oder Ammoniumsalz der sulfonierten Ölsäure weitere, möglichst schaumarme, Tenside enthalten, bei denen es sich in erster Linie um nichtionische und, vorzugsweise, anionische Tenside handelt, wenn auch in Einzelfällen der Einsatz anderer Tensidtypen zweckmäßig sein kann. Geeignete anionische Tenside sind insbesondere solche vom Sulfat- oder Sulfonattyp, doch können auch andere Typen wie Seifen, langkettige N-Acylsarkosinate, Salze von Fettsäurecyanamiden oder Salze von Ethercarbonsäuren, wie sie aus langkettigen Alkyl- oder Alkylphenyl-Polyglykolethern und Chloressigsäure zugänglich sind, verwendet werden. Die anionischen Tenside werden vorzugsweise in Form der Natriumsalze verwendet.In addition to the alkali metal or ammonium salt of sulfonated oleic acid, the agents according to the invention can contain other surfactants which are as low in foam as possible and which are primarily nonionic and, preferably, anionic surfactants, although in individual cases the use of other types of surfactants may be appropriate . Suitable anionic surfactants are in particular those of the sulfate or sulfonate type, but other types such as soaps, long-chain N-acyl sarcosinates, salts of fatty acid cyanamides or salts of ether carboxylic acids, as are obtainable from long-chain alkyl or alkylphenyl polyglycol ethers and chloroacetic acid, can also be used . The anionic surfactants are preferably used in the form of the sodium salts.

Besonders geeignete Tenside vom Sulfattyp sind die Schwefelsäuremonoester von langkettigen primären Alkoholen natürlichen und synthetischen Ursprungs mit 10 bis 20 C-Atomen, das heißt von Fettalkoholen, wie zum Beispiel Kokosfettalkoholen, Talgfettalkoholen, Oleylalkohol, oder den C10- bis C20-Oxoalkoholen und solche von sekundären Alkoholen dieser Kettenlängen. Geeignet sind insbesondere auch die Sulfatierungsprodukte der Umsetzungsprodukte von mit 1 bis 12 Mol Ethylenoxid alkoxylierten C4- bis C12-Alkoholen mit 1,2-Epoxyalkanen, wie sie beispielsweise nach dem in der deutschen Offenlegungsschrift DE 37 23 354 beschriebenen Verfahren erhältlich sind. Daneben kommen die Schwefelsäuremonoester der mit 1 bis 6 Mol Ethylenoxid alkoxylierten aliphatischen primären oder sekundären Alkohole in Betracht. Brauchbare Tenside vom Sulfonattyp sind die Alkansulfonate, die aus C12- bis C18-Alkanen durch Sulfochlorierung oder Sulfoxidation und anschließende Hydrolyse beziehungsweise Neutralisation erhältlich sind, sowie die Olefinsulfonate, wie man sie aus langkettigen Monoolefinen mit end- oder innenständiger Doppelbindung durch Sulfonieren mit gasförmigem Schwefeltrioxid und anschließender alkalischer oder saurer Hydrolyse der Sulfonierungsprodukte erhält.Particularly suitable surfactants of the sulfate type are the sulfuric acid monoesters of long-chain primary alcohols of natural and synthetic origin with 10 to 20 C atoms, that is to say of fatty alcohols, such as, for example, coconut fatty alcohols, tallow fatty alcohols, oleyl alcohol, or the C 10 to C 20 oxo alcohols and the like of secondary alcohols of this chain length. Also particularly suitable are the sulfation products of the reaction products of C 4 to C 12 alcohols alkoxylated with 1 to 12 mol of ethylene oxide with 1,2-epoxyalkanes, as can be obtained, for example, by the process described in German Offenlegungsschrift DE 37 23 354. In addition, the sulfuric acid monoesters of the aliphatic primary or secondary alcohols alkoxylated with 1 to 6 moles of ethylene oxide are suitable. Usable surfactants of the sulfonate type are the alkanesulfonates which can be obtained from C 12 - to C 18 -alkanes by sulfochlorination or sulfoxidation and subsequent hydrolysis or neutralization, and also the olefin sulfonates as obtained from long-chain monoolefins with a terminal or internal double bond by sulfonating with gaseous Sulfur trioxide and subsequent alkaline or acidic hydrolysis of the sulfonation products.

Als nichtionische Tenside eignen sich für das erfindungsgemäße Verfahren insbesondere Anlagerungsprodukte von 1 bis 30, vorzugsweise 3 bis 15 Mol Ethylenoxid an 1 Mol einer Verbindung mit 10 bis 20 Kohlenstoffatomen aus der Gruppe der Alkohole, Alkylphenole, Carbonsäuren und Carbonsäureamide. Besonders wichtig sind die Anlagerungsprodukte von Ethylenoxid und/oder Propylenoxid an langkettige primäre oder sekundäre Alkohole, wie zum Beispiel Fettalkohole oder Oxoalkohole. Geeignet sind überraschenderweise aber auch die bekanntermaßen stark schäumenden Oligoglykoside der genannten Alkohole.Suitable nonionic surfactants for the process according to the invention are, in particular, addition products of 1 to 30, preferably 3 to 15, moles of ethylene oxide with 1 mole of a compound having 10 to 20 carbon atoms from the group of alcohols, alkylphenols, carboxylic acids and carboxamides. The addition products of ethylene oxide and / or propylene oxide onto long-chain primary or secondary alcohols, such as, for example, fatty alcohols or oxo alcohols, are particularly important. Surprisingly, however, the well-known high-foaming oligoglycosides of the alcohols mentioned are also suitable.

Derartige zusätzliche Tenside können in den erfindungsgemäßen Mitteln vorzugsweise in Mengen nicht über 40 Gew.-%, insbesondere von 5 Gew.-% bis 20 Gew.-% enthalten sein.Such additional surfactants can be contained in the agents according to the invention preferably in amounts not exceeding 40% by weight, in particular from 5% by weight to 20% by weight.

Obwohl die erfindungsgemäßen Teppichreinigungsmittel als bevorzugtes Lösungsmittel Wasser, vorzugsweise in Mengen von 20 bis 90 Gew.-%, enthalten, können in untergeordneten Mengen wassermischbare organische Lösungsmittel vorhanden sein. Zu diesen gehören insbesondere Alkohole mit 1 bis 4 C-Atomen, Glykole mit 2 bis 4 C-Atomen und die aus diesen ableitbaren Di- und Triglykole sowie die entsprechenden Glykolether. Derartige Lösungsmittel sind beispielsweise Methanol, Ethanol, Propanol, Isopropanol, Tert.-Butanol, Ethylenglykol, Propylenglykol, Butylenglykol, Diethylenglykol, Triethylenglykol, Dipropylenglykol, Diethylenglykolmonomethylether, Diethylenglykolmonoethylether, Diethylenglykolmonopropylether, Ethylenglykolmonobutylether und Diethylenglykolmonobutylether. Derartige Lösungsmittel sind in den erfindungsgemäßen Mitteln vorzugsweise nicht über 10 Gew.-%, insbesondere von 1 Gew.-% bis 7 Gew.-% enthalten.Although the carpet cleaning agents according to the invention contain water as the preferred solvent, preferably in amounts of 20 to 90% by weight, water-miscible organic solvents can be present in minor amounts. These include in particular alcohols with 1 to 4 carbon atoms, glycols with 2 to 4 carbon atoms and the di- and triglycols which can be derived therefrom and the corresponding glycol ethers. Such solvents are, for example, methanol, ethanol, propanol, isopropanol, tert-butanol, ethylene glycol, propylene glycol, butylene glycol, diethylene glycol, triethylene glycol, dipropylene glycol, diethylene glycol monomethyl ether, diethylene glycol monoethyl ether, diethylene glycol monopropyl ether, ethylene glycol monobutyl ether and diethylene glycol monobutyl ether and diethylene glycol monobutyl ether. Such solvents are preferably contained in the agents according to the invention not more than 10% by weight, in particular from 1% by weight to 7% by weight.

Darüberhinaus kann das erfindungsgemäße Mittel weitere in Teppichreinigungsmitteln übliche Hilfsstoffe enthalten. Besonders erwähnt seien Konservierungsmittel, die Wiederanschmutzung vermeidende Mittel, anorganische Salze, antistatisch wirkende Stoffe, Farbstoff und Parfüm. Bei der Auswahl der Hilfsstoffe, vor allem von denen, die in größerer Menge im Reinigungsmittel enthalten sind, werden solche bevorzugt, die nach dem Trocknen auf dem Teppich zu festen Rückständen führen.In addition, the agent according to the invention can contain other auxiliaries customary in carpet cleaning agents. Preservatives, anti-pollution agents, inorganic salts, antistatic substances, colorants and perfumes are particularly worth mentioning. When selecting the auxiliaries, especially those that are present in the detergent in large quantities, preference is given to those which lead to solid residues after drying on the carpet.

Bei den Hilfsstoffen, die die Wiederanschmutzung des Teppichbodens vermindern sollen, handelt es sich in erster Linie um wasserlösliche oder wasserdispergierbare Polymere, die nach dem Auftrocknen nicht zu Filmen, sondern zu .spröden Rückständen führen. Vorzugsweise werden entsprechende Polymere der Acrylsäure und/oder Methacrylsäure oder deren Copolymere mit sonstigen ethylenisch ungesättigten Monomeren, beispielsweise Styrol, verwendet. Derartige die Wiederanschmutzung vermeidende Stoffe sind in den erfindungsgemäßen Mitteln in Mengen zwischen 2 und 30 Gew.-%, insbesondere zwischen 5 Gew.-% und 20 Gew.-%, enthalten.The auxiliary substances which are intended to reduce the re-soiling of the carpet are primarily water-soluble or water-dispersible polymers which do not lead to films after drying, but to brittle residues. Corresponding polymers of acrylic acid and / or methacrylic acid or their copolymers with other ethylenically unsaturated monomers, for example styrene, are preferably used. Such substances which prevent re-soiling are contained in the agents according to the invention in amounts between 2 and 30% by weight, in particular between 5% by weight and 20% by weight.

Als Wirkstoffe, die eine antistatische Ausrüstung des Teppichbodens bewirken sollen, werden üblicherweise quartäre Ammoniumverbindungen verwendet, die auf das Textilmaterial aufziehen. Auch anorganische Salze können einen antistatischen Effekt auf dem Teppichboden bewirken. Der Gehalt an derartigen Antistatika in den erfindungsgemäßen Reinigungsmitteln beträgt vorzugsweise nicht mehr als 1 Gew.-%, insbesondere von 0,01 Gew.-% bis 0,5 Gew.-%.Quaternary ammonium compounds which attach to the textile material are usually used as active ingredients which are intended to provide the carpet with an antistatic finish. Inorganic salts can also have an antistatic effect on the carpet. The content of such antistatic agents in the cleaning agents according to the invention is preferably not more than 1% by weight, in particular from 0.01% by weight to 0.5% by weight.

Die in den erfindungsgemäßen Mitteln einsetzbaren Schwermetallkomplexbildner sind in erster Linie Aminopolycarbonsäuren und Polyphosphonsäuren oder deren Salze, beispielsweise Nitrilotriessigsäure und Hydroxyethandiphosphonsäure. Derartige Komplexbildner sind in den erfindungsgemäßen Reinigungsmitteln vorzugsweise in Mengen nicht über 10 Gew.-%, insbesondere von 0,5 Gew.-% bis 2 Gew.-% enthalten.The heavy metal complexing agents which can be used in the agents according to the invention are primarily aminopolycarboxylic acids and polyphosphonic acids or their salts, for example nitrilotriacetic acid and hydroxyethane diphosphonic acid. Such complexing agents are contained in the cleaning agents according to the invention preferably in amounts of not more than 10% by weight, in particular from 0.5% by weight to 2% by weight.

Konservierungsmittel, Farbstoff und Parfüm ist in den erfindungsgemäßen Teppichreinigungsmitteln vorzugsweise in Mengen von jeweils nicht über 3 Gew.-%, insbesondere von 0,01 Gew.-% bis 1 Gew.-% und besonders bevorzugt von 0,1 Gew.-% bis 0,5 Gew.-% enthalten.Preservative, dye and perfume in the carpet cleaning agents according to the invention are preferably in amounts of not more than 3% by weight, in particular from 0.01% to 1% by weight and particularly preferably from 0.1% by weight to Contain 0.5 wt .-%.

Die Herstellung der erfindungsgemäßen Konzentrate weist keinerlei Schwierigkeiten auf. Sie kann durch einfaches Mischen der Bestandteile, die als solche oder in Form wäßriger Lösungen vorliegen können, erfolgen.The production of the concentrates according to the invention has no difficulties. It can be done by simply mixing the components, which can be present as such or in the form of aqueous solutions.

Die Herstellung einer gebrauchsfertigen Reinigungslösung ist ohne weiteres durch Verdünnen der erfindungsgemäßen Reinigungsmittel mit Wasser möglich.A ready-to-use cleaning solution can easily be prepared by diluting the cleaning agents according to the invention with water.

Durch die geringe Schaumentwicklung und die geringe Stabilität des Schaums können bei Verwendung des erfindungsgemäßen Mittels in dem Reinigungsverfahren höhere Anwendungskonzentrationen als in den bisherigen Verfahren eingesetzt werden, so daß auch stark verschmutzte Textilien in nur einem Arbeitsgang gereinigt werden können.Due to the low foam development and the low stability of the foam, when using the agent according to the invention, higher application concentrations can be used in the cleaning process than in the previous processes, so that even heavily soiled textiles can be cleaned in a single operation.

Ein kennzeichnendes Merkmal des erfindungsgemäßen Verfahrens ist die Zusammensetzung der verwendeteten Reinigungslösung, die man durch Verdünnen des erfindungsgemäßen Teppichreinigungsmittelkonzentrats mit Wasser erhält. Pro Liter der fertigen Reinigungslösung wird von dem erfindungsgemäßen Reinigungsmittel vorzugsweise 5 ml bis 100 ml, insbesondere 10 ml bis 20 ml verwendet. Der pH-Wert der gebrauchsfertigen Lösung liegt vorzugsweise zwischen 4 und 12, insbesondere zwischen 6 und 8.A characteristic feature of the method according to the invention is the composition of the cleaning solution used, which is obtained by diluting the carpet cleaning agent concentrate according to the invention with water. Preferably 5 ml to 100 ml, in particular 10 ml to 20 ml, of the cleaning agent according to the invention is used per liter of the finished cleaning solution. The pH of the ready-to-use solution is preferably between 4 and 12, in particular between 6 and 8.

Das erfindungsgemäße Verfahren bedient sich vorzugsweise eines oben beschriebenen Sprühextraktionsgerätes. Nach der Entfernung der Reinigungsmittellösung wird der Teppich getrocknet. Dies kann dadurch geschehen, daß man ihn an der Luft sich selbst überläßt, was Trockenzeiten von bis zu 2 Tagen bedeuten kann. Es ist aber auch möglich, durch Einsatz von Luftgebläsen oder Wärmestrahlern die Trocknung zu beschleunigen.The method according to the invention preferably uses a spray extraction device described above. After the detergent solution has been removed, the carpet is dried. This can be done by leaving it alone in the air, which can mean drying times of up to 2 days. However, it is also possible to accelerate drying by using air blowers or heat radiators.

Das neue Reinigungsverfahren hat seine besonderen Vorteile bei der Reinigung von Teppichböden vor Ort, da fest verlegte Teppichböden den Reinigungsverfahren für bewegliche Textilien nicht zugänglich sind. Die gleichen Vorteile weist das erfindungsgemäße Verfahren bei anderen Textilien auf, die nicht ohne weiteres einem üblichen Waschprozeß zugänglich sind, wie Wandbespannungen und Polstermöbel. Es bietet auch bei Anwendung auf bewegliche Teppiche wegen seiner leichten Durchführbarkeit Vorteile gegenüber den bei derartigen Textilien sehr aufwendigen Waschprozessen. Das erfindungsgemäße Verfahren zeichnet sich außer durch ein gutes Ergebnis bei der Flächenreinigung auch durch eine geringe Wiederanschmutzungsneigung des gereinigten Textils aus. Einer Vorbehandlung der zu reinigenden Textilien bedarf es normalerweise nicht. Das Verfahren eignet sich sowohl für Teppichböden aus synthetischen Fasern, wie beispielsweise Polyamid, als auch für relativ empfindliche Textilien aus Naturfasern, wie etwa Wolle.The new cleaning process has its particular advantages when cleaning carpets on site, since permanently installed carpets are not accessible to the cleaning processes for movable textiles. The method according to the invention has the same advantages in the case of other textiles which are not readily accessible to a conventional washing process, such as wall coverings and upholstered furniture. Because of its ease of use, it also offers advantages over the washing processes which are very complex in the case of textiles of this type when it is used on movable carpets. The method according to the invention is characterized not only by a good result in surface cleaning, but also by a low tendency towards re-soiling of the cleaned textile. Pretreatment of the textiles to be cleaned is normally not necessary. The process is suitable for carpets made of synthetic fibers, such as polyamide, as well as for relatively sensitive textiles made of natural fibers, such as wool.

BeispieleExamples Beispiel 1 : Herstellung des Di-Natriumsalzes der sulfonierten Ölsäure Example 1 : Preparation of the disodium salt of sulfonated oleic acid

Das für die Herstellung der erfindungsgemäßen Reinigungsmittel verwendete Di-Natriumsalz der sulfonierten Ölsäure wurde durch Sulfonierung einer technischen Ölsäure aus Rindertalg (Zusammensetzung : 70,7 Gew.-% Ölsäure, 11,8 Gew.-% Linolsäure, Rest andere C12- bis C20-Fettsäuren; Säurezahl 200,4, Jodzahl 98,3) mit Schwefeltrioxid und anschließender Neutralisation und Hydrolyse erhalten. Die Sulfonierung wurde in einem röhrenförmigen, mit einem Heiz- oder Kühlmantel umgegebenen Fallfilmreaktor aus Glas (Länge 110 cm, Innendurchmesser 6 mm), der am Kopf mit einer Aufgabevorrichtung für die Ölsäure und einem Gaseinleitungsrohr versehen war, durchgeführt. Die Ölsäure wurde mit einer konstanten Geschwindigkeit von 550 g pro Stunde aufgetragen. Gasförmiges Schwefeltrioxid (erzeugt durch Erhitzen von Oleum), wurde mit Stickstoff auf eine Konzentration von 5 Vol.-% Schwefeltrioxid verdünnt und in einer solchen Geschwindigkeit in den Reaktor eingeleitet, daß das Molverhältnis von in der technischen Ölsäure vorhandenen olefinischen Doppelbindungen (errechnet aus der Jodzahl) zu Schwefeltrioxid 1 : 0,9 betrug. Mit Hilfe eines Wasserkreislaufs durch den Reaktormantel wurde die Reaktionstemperatur bei 50 °C gehalten. Das Reaktionsgemisch wurde nach Verlassen des Reaktors in einem Glasgefäß, das 25-gewichtsprozentige wäßrige Natronlauge enthielt, aufgefangen und 2 Stunden bei einem pH-Wert von 8 bis 9 auf 90 °C erhitzt. Das gewünschte Di-Natriumsalz (T1) wurde in einer Konzentration von 60 Gew.-% in Wasser erhalten.The disodium salt of sulfonated oleic acid used for the preparation of the cleaning agents according to the invention was obtained by sulfonating a technical oleic acid from beef tallow (composition: 70.7% by weight oleic acid, 11.8% by weight linoleic acid, the rest other C 12 - to C 20 fatty acids; acid number 200.4, iodine number 98.3) with sulfur trioxide and subsequent neutralization and hydrolysis. The sulfonation was carried out in a tubular glass falling film reactor (length 110 cm, inner diameter 6 mm) surrounded by a heating or cooling jacket, which was provided at the head with a feed device for the oleic acid and a gas inlet tube. The oleic acid was applied at a constant rate of 550 g per hour. Gaseous sulfur trioxide (produced by heating oleum) was diluted with nitrogen to a concentration of 5 vol.% Sulfur trioxide and introduced into the reactor at such a rate that the molar ratio of olefinic double bonds present in technical oleic acid (calculated from the iodine number ) to sulfur trioxide was 1: 0.9. The reaction temperature was kept at 50 ° C. with the aid of a water circuit through the reactor jacket. After leaving the reactor, the reaction mixture was collected in a glass vessel which contained 25% by weight aqueous sodium hydroxide solution and heated to 90 ° C. at a pH of 8 to 9 for 2 hours. The desired disodium salt (T1) was obtained in a concentration of 60% by weight in water.

Beispiel 2Example 2

Die Herstellung der in der nachfolgenden Tabelle 1 durch ihre Zusammensetzung charakterisierten erfindungsgemäßen Reinigungsmittel erfolgte durch einfaches Mischen der Bestandteile. Tabelle 1: Zusammensetzung der erfindungsgemäßen Mittel [Gew.-%] M1 M2 M3 M4 T1 60 25 20 24 7-fach ethoxylierter C9/11-Alkohol (Lutensol(R) ON 70, Hersteller BASF) - 20 - 6 C12/14-Alkylglucosid, Polymerisationsgrad 1,4 - - 20 - 6-fach ethoxylierte C12/14-Fettsäure (Eumulgin(R) Ti 60, Hersteller Henkel) - - - 8 Li-C8/12-Alkylsulfat (Texapon(R) LLS, Hersteller Henkel) - - 5 - Sulfatierter Hydroxyethera) - 10 - 8 Na-Nitrilotriacetat - 0,2 - 0,8 Na-Tripolyphosphat - - 3 - Poly(methylmethacrylat) (Neocryl(R) NH 20, Hersteller ICI) - 10 - - Copolymerisat aus Acrylsäure und Styrol (Ubatol(R) TR 1138, Hersteller Stapol) - - 5 - Ethanol 5 - 3 - Propylenglykolmonobutylether - 10 - 6 Chloracetamid - 0,2 0,2 0,2 Wasser, Parfüm, Farbstoff ad 100 a) : Na-Salz des Sulfatierungsproduktes des Umsetzungsproduktes von mit 10 Molequivalenten Ethylenoxid alkoxyliertem n-Butanol mit 1,2-Epoxyoctan gemäß DE 37 23 354 The cleaning agents according to the invention characterized by their composition in Table 1 below were produced by simply mixing the constituents. Table 1: Composition of the agents according to the invention [% by weight] M1 M2 M3 M4 T1 60 25th 20th 24th 7-fold ethoxylated C 9/11 alcohol (Lutensol (R) ON 70, manufacturer BASF) - 20th - 6 C 12/14 alkyl glucoside, degree of polymerization 1.4 - - 20th - 6-fold ethoxylated C 12/14 fatty acid (Eumulgin (R) Ti 60, manufacturer Henkel) - - - 8th Li-C 8/12 alkyl sulfate (Texapon (R) LLS, manufacturer Henkel) - - 5 - Sulphated hydroxyether a) - 10th - 8th Na nitrilotriacetate - 0.2 - 0.8 Na tripolyphosphate - - 3rd - Poly (methyl methacrylate) (Neocryl (R) NH 20, manufacturer ICI) - 10th - - Copolymer of acrylic acid and styrene (Ubatol (R) TR 1138, manufacturer Stapol) - - 5 - Ethanol 5 - 3rd - Propylene glycol monobutyl ether - 10th - 6 Chloroacetamide - 0.2 0.2 0.2 Water, perfume, dye ad 100 a): Na salt of the sulfation product of the reaction product of n-butanol alkoxylated with 10 mol equivalents of ethylene oxide with 1,2-epoxyoctane according to DE 37 23 354

Beispiel 3Example 3

Zur Untersuchung der Reinigungswirkung des erfindungsgemäßen Verfahrens wurde ein Polyamid-Velours-Teppichboden mit praxisgerechter Begehverschmutzung unter Verwendung eines Floordress(R) Sprühextraktionsgerätes SB 2412 mit wäßrigen Lösungen, die jeweils 1 Gew.-% der erfindungsgemäßen Mittel M1 bis M4 enthielten, gereinigt. Zum Vergleich wurde unter den gleichen Bedingungen mit handelsüblichen Teppichreinigungsmitteln V1 (bestehend aus 25 Gew.-% Alkylpolyglykolether, 3 Gew.-% Na-Cumolsulfonat, 0,2 Gew.-% Silikon-Entschäumer, 0,1 Gew.-% Konservierungsmittel, Rest auf 100 Gew.-% Wasser), V2 (bestehend aus 8 Gew.-% Epoxyfettsäure, 5 Gew.-% Fettsäurepolyglykolester, 0,3 Gew.-% Parfüm, 0,2 Gew.-% Konservierungsmittel, Rest auf 100 Gew.-% Wasser) und V3 (bestehend aus 8 Gew.-% Alkylpolyglykolether, 8,5 Gew.-% Na-Cumolsulfonat, 2 Gew.-% Aminotrimethylenphosphonsäure, 1 Gew.-% Natriumhydroxid, Rest auf 100 Gew.-% Wasser) gereinigt.To investigate the cleaning effect of the method according to the invention, a polyamide velor carpet with practical dirt from walking was used using a Floordress (R) spray extraction device SB 2412 with aqueous solutions, each containing 1% by weight of agents M1 to M4 according to the invention. For comparison, under the same conditions, commercially available carpet cleaning agents V1 (consisting of 25% by weight alkyl polyglycol ether, 3% by weight Na cumene sulfonate, 0.2% by weight silicone defoamer, 0.1% by weight preservative, Balance to 100 wt.% Water), V2 (consisting of 8 wt.% Epoxy fatty acid, 5 wt.% Fatty acid polyglycol ester, 0.3 wt.% Perfume, 0.2 wt.% Preservative, remainder to 100 wt % Water) and V3 (consisting of 8% by weight alkyl polyglycol ether, 8.5% by weight Na-cumene sulfonate, 2% by weight aminotrimethylenephosphonic acid, 1% by weight sodium hydroxide, the remainder to 100% by weight water ) cleaned.

Die maschinelle Schaumintensität der Mittel (1 = stark schäumend, 10 = kein Schaum), die Schaumstabilität (1 = sehr stabiler Schaum, 10 = sehr instabiler Schaum) sowie die Reinigungsleistung (1 = kein Unterschied zum ungereinigten Textil, 10 = einwandfrei sauber) und die Wiederanschmutzungstendenz des gereinigten Teppichs (1 = hohe Wiederanschmutzung, 10 = keine Wiederanschmutzung) wurde durch geschulte Prüfer benotet. Tabelle 2: Bewertungsnoten M1 M2 M3 M4 V1 V2 V3 Schaumintensität 9 8 8 9 7 6 7 Schaumstabilität 10 9 9 8 6 6 6 Reinigung 9 10 9 8 8 9 9 Wiederanschmutzung 10 9 8 9 6 6 6 The mechanical foam intensity of the agents (1 = highly foaming, 10 = no foam), the foam stability (1 = very stable foam, 10 = very unstable foam) and the cleaning performance (1 = no difference to the uncleaned textile, 10 = perfectly clean) and The tendency to re-soiling of the cleaned carpet (1 = high re-soiling, 10 = no re-soiling) was graded by trained examiners. Table 2: Evaluation grades M1 M2 M3 M4 V1 V2 V3 Foam intensity 9 8th 8th 9 7 6 7 Foam stability 10th 9 9 8th 6 6 6 cleaning 9 10th 9 8th 8th 9 9 Re-pollution 10th 9 8th 9 6 6 6

Claims (8)

  1. The use of sulfonated oleic acid in the form of an alkali metal or ammonium salt as surfactant component in water-based carpet cleaning compositions suitable for use in spray extraction cleaners.
  2. The use claimed in claim 1 of the disodium salt of sulfonated oleic acid.
  3. A water-based carpet cleaning composition containing 10% by weight to 80% by weight salt of sulfonated oleic acid, not more than 40% by weight of additional surfactant, more particularly anionic and/or nonionic surfactant, not more than 10% by weight of water-miscible organic solvent, not more than 10% by weight of complexing agent, 2 to 30% by weight of resoiling inhibitor, not more than 3% by weight of preservative, not more than 1% by weight of antistatic agent, not more than 3% by weight of dye, not more than 3% by weight of perfume and 20% by weight to 90% by weight of water.
  4. A composition as claimed in any of claims 1 to 3, characterized in that it contains 15% by weight to 50% by weight of salt of sulfonated oleic acid, 5% by weight to 20% by weight of additional surfactant, 1% by weight to 7% by weight of water-miscible organic solvent, 0.5% by weight to 2% by weight of complexing agent, 5% by weight to 20% by weight of resoiling inhibitor and 0.1% by weight to 0.5% by weight of preservative.
  5. A process for cleaning large-area textiles, more particularly carpets, with surfactant-containing water-based solutions in which the textile is wetted with the solution and optionally mechanically treated, the solution is substantially removed from the textile by suction immediately afterwards and, if desired, the textile is dried, characterized in that the cleaning solution contains an alkali metal or ammonium salt, more particularly the disodium salt, of sulfonated oleic acid as surfactant component.
  6. A process as claimed in claim 5 in which the cleaning solution is prepared by diluting the composition claimed in claim 3 or 4.
  7. A process as claimed in claim 6, characterized in that the cleaning solution contains 5 ml to 100 ml and, more particularly, 10 ml to 20 ml of the cleaning composition per litre of the ready-to-use cleaning solution.
  8. A process as claimed in claim 6 or 7, characterized in that the aqueous cleaning solution is applied to the textile to be cleaned by a spray extraction cleaner and is removed immediately afterwards with the same appliance.
EP91920831A 1990-12-10 1991-12-02 Carpet-cleaning agent Expired - Lifetime EP0561842B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4039348 1990-12-10
DE4039348A DE4039348A1 (en) 1990-12-10 1990-12-10 CARPET CLEANER
PCT/EP1991/002274 WO1992010558A1 (en) 1990-12-10 1991-12-02 Carpet-cleaning agent

Publications (2)

Publication Number Publication Date
EP0561842A1 EP0561842A1 (en) 1993-09-29
EP0561842B1 true EP0561842B1 (en) 1996-10-23

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EP91920831A Expired - Lifetime EP0561842B1 (en) 1990-12-10 1991-12-02 Carpet-cleaning agent

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US (1) US5429684A (en)
EP (1) EP0561842B1 (en)
JP (1) JPH06503371A (en)
AT (1) ATE144549T1 (en)
CA (1) CA2098197A1 (en)
DE (2) DE4039348A1 (en)
DK (1) DK0561842T3 (en)
ES (1) ES2094829T3 (en)
FI (1) FI932601A0 (en)
GR (1) GR3021680T3 (en)
NO (1) NO302374B1 (en)
WO (1) WO1992010558A1 (en)

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CA2255774C (en) 1996-05-29 2008-03-18 Cornell Research Foundation, Inc. Detection of nucleic acid sequence differences using coupled ligase detection and polymerase chain reactions
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Also Published As

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JPH06503371A (en) 1994-04-14
NO931661L (en) 1993-05-06
GR3021680T3 (en) 1997-02-28
FI932601A (en) 1993-06-07
EP0561842A1 (en) 1993-09-29
US5429684A (en) 1995-07-04
CA2098197A1 (en) 1992-06-10
DE59108308D1 (en) 1996-11-28
FI932601A0 (en) 1993-06-07
ATE144549T1 (en) 1996-11-15
NO931661D0 (en) 1993-05-06
WO1992010558A1 (en) 1992-06-25
DK0561842T3 (en) 1997-03-24
NO302374B1 (en) 1998-02-23
ES2094829T3 (en) 1997-02-01
DE4039348A1 (en) 1992-06-11

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