EP0913460B1 - Method for cleaning floors - Google Patents

Method for cleaning floors Download PDF

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Publication number
EP0913460B1
EP0913460B1 EP98120204A EP98120204A EP0913460B1 EP 0913460 B1 EP0913460 B1 EP 0913460B1 EP 98120204 A EP98120204 A EP 98120204A EP 98120204 A EP98120204 A EP 98120204A EP 0913460 B1 EP0913460 B1 EP 0913460B1
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EP
European Patent Office
Prior art keywords
soluble salt
crystalline water
cleaning
group
water
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EP98120204A
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German (de)
French (fr)
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EP0913460A2 (en
EP0913460A3 (en
Inventor
Hans-Leo Dipl.-Oecotrophologe Fernschild
Heiko Dr. Dipl.-Chem. Faubel
Hans-Werner Dipl.Ing. Ratering
Gian-Domenico Ameglio
Birgit Skodell
Karl-Heinz Rogmann
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Ecolab Inc
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Ecolab Inc
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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
    • C11D3/02—Inorganic compounds ; Elemental compounds
    • C11D3/04—Water-soluble compounds
    • C11D3/046—Salts
    • 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
    • C11D3/02—Inorganic compounds ; Elemental compounds
    • C11D3/04—Water-soluble compounds
    • C11D3/06—Phosphates, including polyphosphates
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16—Organic compounds
    • C11D3/20—Organic compounds containing oxygen
    • C11D3/2075—Carboxylic acids-salts thereof
    • C11D3/2086—Hydroxy carboxylic acids-salts thereof
    • C11D2111/14—

Definitions

  • the invention described below lies in the field of cleaning Floors with a hard surface and in particular relates to a method of cleaning heavily soiled surfaces with the help of abrasive cleaning agents.
  • abrasive cleaning agents used, i.e. Detergents that an abrasive component, usually fine-particle sand or the like water-insoluble inorganic materials. The removal of the contamination takes place at least partially by mechanical removal of the dirt.
  • abrasives of this type are used less popular because the residue-free removal of the abrasive components of the floor surfaces is expensive and usually a multiple Rinsing required.
  • Liquid detergents have been proposed in a highly concentrated Surfactant solution contains undissolved water-soluble salts as an abrasive component.
  • the invention relates to a method for cleaning heavily soiled hard flooring, in addition to a usual liquid aqueous cleaning agent a crystalline water-soluble salt in scatterable Form is applied to the surfaces to be cleaned and then these surfaces mechanically processed before the crystalline salt in the liquid aqueous detergent dissolves.
  • Phosphates are special as crystalline water-soluble salts prefers.
  • the special effect of the method according to the invention is based on the abrasive Effect of the sprinkled crystalline salts during mechanical Machining of the floor occurs and for quick removal even stubborn dirt.
  • the salts which were initially applied in solid form, then dissolve in a short time the aqueous cleaning solution completely and can easily in this form be removed from the surfaces.
  • the crystalline water-soluble salts only in the places on the floors must be applied to the stubborn stains are located. As a rule, these are only small parts of the total to be cleaned Area, so that the total load of salts in the resulting wastewater remains low. In most cases, like when using the usual aqueous cleaning agent alone, completely rinsing is not required become.
  • the type of liquid aqueous cleaning agent used is for that used cleaning methods of minor importance and can therefore in the usual way to be adapted to the conditions that apply to the Cleaning of the less heavily soiled parts of the total area, on which this detergent is used alone.
  • the method according to the invention can therefore easily be carried out using conventional methods Basic cleaners, all-purpose cleaners, neutral cleaners or sanitary cleaners be carried out, insofar as these are aqueous compositions is. Of course, there should be so much of these liquid cleaners be applied that the amount of liquid is able to do the additional applied amount of crystalline water-soluble salt to dissolve when the Advantages of the method according to the invention are to be fully exploited.
  • the liquid aqueous optionally diluted cleaning agents are preferably used in amounts of 10 ml to 150 ml, in particular in amounts of 20 ml to 100 ml per m 2 of area to be cleaned.
  • the application can be carried out, for example, by wiping or spraying, by hand or in particular with the aid of suitable machines.
  • the surfaces to be cleaned are usually applied Metal salts of inorganic or organic acids.
  • Metal salts of inorganic or organic acids Preferably be Salts of alkali metals, especially sodium or potassium salts used.
  • suitable salts are sodium carbonate, potassium carbonate, sodium sulfate, Monopotassium phosphate, potassium pyrophosphate and trisodium citrate.
  • Especially preferred crystalline water-soluble salts are the alkali metal phosphates which Alkali metal diphosphates and the alkali metal polyphosphates, including the Triphosphates are to be counted.
  • phosphates are Monopotassium phosphate and tetrapotassium pyrophosphate.
  • tetrapotassium pyrophosphate a particularly preferred phosphate.
  • Phosphates also transfer in the process according to the invention the pure abrasive effect also contributes to the cleaning effect.
  • the grain size of the crystalline water-soluble salts used influences in certain limits the abrasive effect and the speed of the later Dissolution in the cleaning solution. Grain sizes are therefore preferred between about 0.1 mm and about 2 mm, in particular between about 0.5 mm and about 1 mm inserted.
  • the degree of water solubility required for those used as abrasives Crystalline salts result from the considerations described above for the person skilled in the art.
  • the inventive used salts at 20 ° C in water a solubility of at least 30 g per Liters, especially at least 300 g per liter.
  • the water-soluble crystalline salts are preferably used to strengthen the Cleaning performance of liquid aqueous cleaning agents without further Additives applied to the heavily soiled surfaces. It is also possible these salts together with other auxiliaries and additives that in particular can further enhance the cleaning effect, in spreadable shape.
  • auxiliaries and additives are Alkali carriers, surfactants, complexing agents, antimicrobial agents, bleaching agents as well as dyes and fragrances and possibly also water-insoluble ones Abrasive components, provided that the beneficial effect of The inventive method is not affected.
  • these auxiliaries and additives are not separated from the crystalline water-soluble Salt applied to the surfaces, but together with this salt in one sprinkled form, which is then used as a cleaning booster referred to as.
  • alkali carriers are, above all, amorphous alkaline salts, in particular from the group of alkali silicates. You can up to about 20 wt .-%, preferably between about 0.5 and about 10% by weight of the Identify cleaning amplifier.
  • Suitable surfactants are, in particular, those available in solid form Surfactants from the class of anionic surfactants, in particular the linear alkylbenzenesulfonates, the alkane sulfonates and the fatty alcohol sulfates. you will be preferably used as alkali salts, especially sodium salts. If necessary, nonionic surfactants can also be used in small quantities are used, provided that this increases the spreadability of the cleaning amplifier is not affected.
  • the amount of surfactants can be up to about 10% by weight, preferably between about 0.1 and about 5% by weight of the cleaning booster turn off.
  • Complexing agents primarily serve to complex calcium, magnesium and iron ions.
  • suitable complexing agents are nitrilotriacetate and ethylenediaminetetraacetate.
  • Such complexing agents can be found in the cleaning boosters in amounts up to about 30% by weight, preferably between about 0.1 and about 10% by weight may be included.
  • Antimicrobial agents primarily serve to disinfect the surfaces, but possibly also for disinfection of those to be removed later from the surface Cleaning solution.
  • suitable antimicrobial agents are quaternary ammonium compounds, paraformaldehyde, phenols and Biguanides.
  • the amount of these active ingredients depends very much on the Effectiveness of the individual substances used and can therefore vary widely Limits fluctuate. So there are up to about in the cleaning boosters 20% by weight, preferably between about 0.1 and about 5% by weight possible.
  • Bleaching agents are generally used for the chemical removal of bleachable soiling and in special cases to reinforce the disinfectant Effect.
  • Bleaches based on active oxygen are suitable, for example, such as sodium perborate, sodium percarbonate and solid peroxycarboxylic acids, or bleaches based on active chlorine, such as sodium dichloroisocyanurate and sodium hypochlorite.
  • active oxygen such as sodium perborate, sodium percarbonate and solid peroxycarboxylic acids
  • bleaches based on active chlorine such as sodium dichloroisocyanurate and sodium hypochlorite.
  • the quantity varies within wide limits the effectiveness of the bleach. You can up in the cleaning boosters about 20% by weight, preferably between about 1 and about 5% by weight.
  • the amount of crystalline water-soluble salt which is applied to the surfaces in the process according to the invention depends primarily on the severity of the soiling and on the need to remove it abrasively. Since the salt should subsequently dissolve in the additionally used aqueous cleaning agent, the amount of salt must also be matched to the amount of aqueous cleaning agent which is used on the same surface in accordance with its solubility. Therefore, preferably about 10 g to about 100 g of crystalline water-soluble salt is used per m 2 of the floor area to be cleaned. If further auxiliaries and additives, if appropriate in the form of the cleaning booster described above, are applied together with the salt, their amount should also be such that they can dissolve in the additionally applied aqueous cleaning agent.
  • the crystalline is water-soluble Salt, optionally together with other auxiliary and Additives sprinkled evenly on the surface to be cleaned. Then the cleaning solution is either manually or with the help suitable devices applied to this area. But it is also possible to do this Reverse order.
  • the surface is machined. In the simplest case, this can be done by hand using brushes or scrubbers respectively; in the commercial sector, however, processing with appropriate Machines, especially roller brushing machines and plate brushing machines, such as they are also used otherwise for floor cleaning. After the cleaning process is complete, it will be on the floor remaining cleaning solution in which the crystalline salt is now dissolved and in which the loosened dirt is suspended, removed from the floor.
  • this solution can be wiped up by hand; in the Commercial areas are usually only liquid vacuum cleaners used for this process.
  • the Combination devices are also used, which are able to perform several operations simultaneously or in succession, For example, brush vacuums or automatic cleaning machines, with the help of which also aqueous cleaning solution can be applied to the floor surfaces. If necessary, the stronger becomes for the time of the mechanical processing soiled areas until the crystalline salts dissolve off.
  • the inventive method is suitable for all hard Floor surfaces, usually with aqueous cleaning agents treated, for example ceramic coverings, PVC and rubber.
  • the process is in soft textile floor coverings, such as carpets generally unsuitable.
  • the method according to the invention can be selectively used for cleaning heavily soiled areas can be used alone. Usually but in connection with a basic cleaning or a maintenance cleaning of the total area applied.

Abstract

In a process to clean heavily soiled hard floors the floor is pretreated with an abrasive crystalline water-soluble phosphate before scrubbing.

Description

Die im folgenden beschriebene Erfindung liegt auf dem Gebiet der Reinigung von Fußböden mit harter Oberfläche und betrifft insbesondere ein Verfahren zur Reinigung stark verschmutzter Flächen mit Hilfe von abrasiv wirkenden Reinigungsmitteln.The invention described below lies in the field of cleaning Floors with a hard surface and in particular relates to a method of cleaning heavily soiled surfaces with the help of abrasive cleaning agents.

Zur Reinigung von stark verschmutzten Fußböden im Haushalt werden schon immer scheuernd wirkende Reinigungsmittel verwendet, d.h. Reinigungsmittel, die eine abrasiv wirkende Komponente, meistens feinteiligen Sand oder ähnliche wasserunlösliche anorganische Materialen, enthalten. Die Entfernung der Verunreinigung erfolgt damit wenigstens teilweise durch mechanischen Abtrag der Verschmutzungen. Bei der gewerblichen Reinigung werden Scheuermittel dieser Art weniger gern eingesetzt, da die rückstandsfreie Entfernung der Abrasivkomponenten von den Fußbodenoberflächen aufwendig ist und in der Regel ein mehrfaches Nachspülen erfordert. Zur scheuernden Reinigung von stark verschmutzten Flächen sind, beispielsweise in EP 334 566 und in US 4,179,414, auch schon flüssige Reinigungsmittel vorgeschlagen worden, die in einer hochkonzentrierten Tensidlösung ungelöste wasserlösliche Salze als Abrasivkomponente enthalten. Diese Mittel können in unverdünnter Form zur Entfernung hartnäckiger Verschmutzungen eingesetzt werden und/oder nach entsprechender Verdünnung und Auflösung der wasserlöslichen Salze als flüssige Reinigungsmittel zur Reinigung im herkömmlichen Sinne ohne Abrasivwirkung. Auch derartige Mittel haben im Bereich der gewerblichen Reinigung wenig Bedeutung erlangt, da im allgemeinen bei einfachen Reinigungsvorgängen, die keine Abrasivwirkung erfordern, möglichst wenig Salze eingesetzt werden sollen, da diese nur zu Rückstandsproblemen führen und das Abwasser belasten. In diesem Zusammenhang war es eine Aufgaben der vorliegenden Erfindung, eine Verbesserung bei den Verfahren zur Reinigung von stark verschmutzten Fußböden, insbesondere im Bereich der gewerblichen Reinigung, zu entwickeln. For cleaning heavily soiled floors in the household have always been abrasive cleaning agents used, i.e. Detergents that an abrasive component, usually fine-particle sand or the like water-insoluble inorganic materials. The removal of the contamination takes place at least partially by mechanical removal of the dirt. In commercial cleaning, abrasives of this type are used less popular because the residue-free removal of the abrasive components of the floor surfaces is expensive and usually a multiple Rinsing required. For abrasive cleaning of heavily soiled Areas are already, for example in EP 334 566 and in US 4,179,414 Liquid detergents have been proposed in a highly concentrated Surfactant solution contains undissolved water-soluble salts as an abrasive component. These agents can be used in undiluted form to remove stubborn dirt are used and / or after appropriate dilution and dissolving the water-soluble salts as liquid detergents for cleaning in the conventional sense without an abrasive effect. Also have such means of little importance in the field of commercial cleaning, since in general for simple cleaning processes that do not require an abrasive effect, as few salts as possible should be used, since these only lead to residue problems lead and pollute the wastewater. In this context it was an object of the present invention, an improvement in the methods for cleaning heavily soiled floors, especially in the area of commercial cleaning, to develop.

Gegenstand der Erfindung ist ein Verfahren zur Reinigung von stark verschmutzten harten Fußbodenbelägen, bei dem zusätzlich zu einem üblichen flüssigen wäßrigen Reinigungsmittel ein kristallines wasserlösliches Salz in streufähiger Form auf die zu reinigenden Flächen aufgebracht wird und diese Flächen dann mechanisch bearbeitet werden, ehe sich das kristalline Salz in dem Flüssigen wäßrigen Reinigungsmittel auflöst. Dabei werden als kristalline wasserlösliche Salze Phosphate besonders bevorzugt.The invention relates to a method for cleaning heavily soiled hard flooring, in addition to a usual liquid aqueous cleaning agent a crystalline water-soluble salt in scatterable Form is applied to the surfaces to be cleaned and then these surfaces mechanically processed before the crystalline salt in the liquid aqueous detergent dissolves. Phosphates are special as crystalline water-soluble salts prefers.

Die besondere Wirkung des erfindungsgemäßen Verfahrens beruht auf der abrasiven Wirkung der aufgestreuten kristallinen Salze, die während der mechanischen Bearbeitung des Fußboden auftritt und zu einer schnellen Entfernung selbst hartnäckig anhaftender Anschmutzungen führt. Nach mehr oder weniger kurzer Zeit lösen sich die zunächst in fester Form aufgebrachten Salze dann in der wäßrigen Reinigungslösung vollständig auf und können in dieser Form problemlos von den Oberflächen wieder entfernt werden. Besonders vorteilhaft ist, daß die kristallinen wasserlöslichen Salze nur an den Stellen auf den Fußböden angewendet werden müssen, an denen sich die hartnäckigen Anschmutzungen befinden. Dies sind in der Regel nur kleine Anteile der insgesamt zu reinigenden Fläche, so daß die Gesamtbelastung an Salzen im entstehenden Abwasser gering bleibt. In den meisten Fällen kann, wie bei der Anwendung der üblichen wäßrigen Reinigungsmittel allein, auf ein Nachspülen vollständig verzichtet werden. Die Verwendung der kristallinen wasserlöslichen Salze in streufähiger Form ermöglicht es, diese Abrasivstoffe ohne aufwendige Hilfsmittel, gegebenenfalls sogar von Hand, sehr gleichmäßig auf die zu reinigenden Flächen zu verteilen. Anders als bei der Verwendung von wasserunlöslichen Abrasivstoffen werden mit dem erfindungsgemäßen Verfahren Ablagerungen in den verwendeten Reinigungsmaschinen praktisch vollständig vermieden.The special effect of the method according to the invention is based on the abrasive Effect of the sprinkled crystalline salts during mechanical Machining of the floor occurs and for quick removal even stubborn dirt. After more or less The salts, which were initially applied in solid form, then dissolve in a short time the aqueous cleaning solution completely and can easily in this form be removed from the surfaces. It is particularly advantageous that the crystalline water-soluble salts only in the places on the floors must be applied to the stubborn stains are located. As a rule, these are only small parts of the total to be cleaned Area, so that the total load of salts in the resulting wastewater remains low. In most cases, like when using the usual aqueous cleaning agent alone, completely rinsing is not required become. The use of the crystalline water-soluble salts in scatterable Form enables these abrasives to be used without expensive aids, if necessary, even by hand, very evenly on those to be cleaned To distribute areas. Unlike when using water-insoluble Abrasives are deposited in the process according to the invention the cleaning machines used almost completely avoided.

Die Art des verwendeten flüssigen wäßrigen Reinigungsmittels ist für das verwendete Reinigungsverfahren von untergeordneter Bedeutung und kann deshalb in üblicher Weise an die Bedingungen angepaßt werden, die sich für die Reinigung der weniger stark angeschmutzten Teile der Gesamtfläche ergeben, auf denen dieses Reinigungsmittel allein angewendet wird. Das erfindungsgemäße Verfahren kann deshalb ohne weiteres mit herkömmlichen Grundreinigem, Allzweckreinigern, Neutralreinigern oder Sanitärreinigern durchgeführt werden, soweit es sich dabei um wäßrige Zusammensetzungen handelt. Selbstverständlich sollte von diesen flüssigen Reinigern soviel angewendet werden, daß die Flüssigkeitsmenge in der Lage ist, die zusätzlich aufgebrachte Menge an kristallinem wasserlöslichen Salz aufzulösen, wenn die Vorteile des erfindungsgemäßen Verfahrens voll genutzt werden sollen.The type of liquid aqueous cleaning agent used is for that used cleaning methods of minor importance and can therefore in the usual way to be adapted to the conditions that apply to the Cleaning of the less heavily soiled parts of the total area, on which this detergent is used alone. The The method according to the invention can therefore easily be carried out using conventional methods Basic cleaners, all-purpose cleaners, neutral cleaners or sanitary cleaners be carried out, insofar as these are aqueous compositions is. Of course, there should be so much of these liquid cleaners be applied that the amount of liquid is able to do the additional applied amount of crystalline water-soluble salt to dissolve when the Advantages of the method according to the invention are to be fully exploited.

Typische Grundreiniger herkömmlicher Art haben beispielsweise folgende Zusammensetzungen:

  • 1 bis 5 Gew.-% Tenside
  • 5 bis 15 Gew.-% Glykolether
  • 5 bis 15 Gew.-% Gerüststoffe
  • 1 bis 5 Gew.-% Lösungsvermittler
  • 1 bis 5 Gew.-% Alkalien
  • Rest zu 100 Gew.-% Wasser und ggf. Hilfsstoffe
    • Typical basic cleaners of conventional type have the following compositions, for example:
  • 1 to 5 wt% surfactants
  • 5 to 15% by weight glycol ether
  • 5 to 15% by weight of builders
  • 1 to 5 wt .-% solubilizer
  • 1 to 5% by weight of alkalis
  • Remainder to 100% by weight of water and possibly auxiliary substances

    • Sie können unverdünnt oder in bis zu 10facher Verdünnung mit Wasser zur Reinigung eingesetzt werden.They can be used undiluted or diluted up to 10 times with water Cleaning can be used.

    Übliche Allzweckreiniger können beispielsweise folgende Zusammensetzung haben:

  • 5 bis 15 Gew.-% Tenside
  • 1 bis 5 Gew.-% Alkohole
  • 1 bis 5 Gew.-% Gerüststoffe
  • Rest zu 100 Gew.-% Wasser und ggf. Hilfsstoffe
    • Common all-purpose cleaners can have the following composition, for example:
  • 5 to 15 wt% surfactants
  • 1 to 5% by weight of alcohols
  • 1 to 5% by weight of builders
  • Remainder to 100% by weight of water and possibly auxiliary substances

    • Sie werden üblicherweise nach 10facher bis 100facher Verdünnung mit Wasser zur Reinigung eingesetzt.They are usually diluted 10 to 100 times with water used for cleaning.

    Typische Neutralreiniger haben beispielsweise folgende Zusammensetzung:

  • 5 bis 15 Gew. % Tenside
  • 1 bis 5 Gew.-% Alkohole
  • Rest zu 100 Gew.-% Wasser und ggf. Hilfsstoffe
    • Typical neutral cleaners have the following composition, for example:
  • 5 to 15% by weight of surfactants
  • 1 to 5% by weight of alcohols
  • Remainder to 100% by weight of water and possibly auxiliary substances

    • Sie werden in ähnlicher Verdünnung wie Allzweckreiniger zur Reinigung eingesetzt.They are used in the same dilution as all-purpose cleaners for cleaning.

    Typische Sanitärreiniger haben beispielsweise folgende Zusammensetzung:

  • 5 bis 15 Gew.-% Tenside
  • 1 bis 5 Gew.-% Alkohole
  • 5 bis 15 Gew.-% Säuren
  • Rest zu 100 Gew.-% Wasser und ggf. Hilfsstoffe
    • Typical sanitary cleaners have the following composition, for example:
  • 5 to 15 wt% surfactants
  • 1 to 5% by weight of alcohols
  • 5 to 15% by weight of acids
  • Remainder to 100% by weight of water and possibly auxiliary substances

    • Sie können in Sonderfällen konzentriert, meist aber in 10facher bis 100facher Verdünnung in Wasser eingesetzt werden.They can be concentrated in special cases, but mostly in 10 to 100 times Dilution in water can be used.

    Für das erfindungsgemäße Reinigungsverfahren werden die flüssigen wäßrigen gegebenenfalls verdünnten Reinigungsmittel vorzugsweise in Mengen von 10 ml bis 150 ml, insbesondere in Mengen von 20 ml bis 100 ml pro m2 zu reinigender Fläche angewandt. Der Auftrag kann beispielsweise durch Wischen oder Sprühen, von Hand oder insbesondere mit Hilfe geeigneter Maschinen, erfolgen.For the cleaning process according to the invention, the liquid aqueous optionally diluted cleaning agents are preferably used in amounts of 10 ml to 150 ml, in particular in amounts of 20 ml to 100 ml per m 2 of area to be cleaned. The application can be carried out, for example, by wiping or spraying, by hand or in particular with the aid of suitable machines.

    Bei den kristallinen wasserlöslichen Salzen, die im erfindungsgemäßen Verfahren in streufähiger Form getrennt von dem flüssigen wäßrigen Reinigungsmittel auf die zu reinigenden Flächen aufgebracht werden, handelt es sich in der Regel um Metallsalze von anorganischen oder organischen Säuren. Vorzugsweise werden Salze der Alkalimetalle, insbesondere Natrium- oder Kaliumsalze verwendet. Beispiele geeigneter Salze sind Natriumcarbonat, Kaliumcarbonat, Natriumsulfat, Monokaliumphosphat, Kaliumpyrophosphat und Trinatriumcitat. Besonders bevorzugte kristalline wasserlösliche Salze sind die Alkalimetallphosphate, die Alkalimetalldiphosphate und die Alkalimetallpolyphosphate, zu denen auch die Triphosphate zu zählen sind. Beispiele besonders bevorzugter Phosphate sind Monokaliumphosphat und Tetrakaliumpyrophosphat. Selbstverständlich können auch Mischungen mehrerer kristalliner wasserlöslicher Salze eingesetzt werden, insbesondere Mischungen der zuletzt genannten Phosphate zusammen mit weiteren Salzen. Phosphate tragen im erfindungsgemäßen Verfahren auch über die reine Abrasivwirkung hinaus zur Reinigungswirkung bei.In the case of the crystalline water-soluble salts used in the process according to the invention in scatterable form separately from the liquid aqueous cleaning agent the surfaces to be cleaned are usually applied Metal salts of inorganic or organic acids. Preferably be Salts of alkali metals, especially sodium or potassium salts used. Examples suitable salts are sodium carbonate, potassium carbonate, sodium sulfate, Monopotassium phosphate, potassium pyrophosphate and trisodium citrate. Especially preferred crystalline water-soluble salts are the alkali metal phosphates which Alkali metal diphosphates and the alkali metal polyphosphates, including the Triphosphates are to be counted. Examples of particularly preferred phosphates are Monopotassium phosphate and tetrapotassium pyrophosphate. Of course you can mixtures of several crystalline water-soluble salts are also used, in particular mixtures of the latter phosphates together with other salts. Phosphates also transfer in the process according to the invention the pure abrasive effect also contributes to the cleaning effect.

    Ganz besonders bevorzugt ist der Einsatz eines oder mehrerer dieser Phosphate zusammen mit wenigstens einem weiteren kristallinen wasserlöslichen Salz aus der Gruppe Natriumsulfat, Trinatriumcitrat, Natriumcarbonat und Kaliumcarbonat. Beispiele derartiger Kombinationen sind: A Monokaliumphosphat 50 Gew.-% Natriumsulfat 50 Gew.-% B Kaliumpyrophosphat 50 Gew.-% Natriumsulfat 50 Gew.-% C Kaliumpyrophosphat 33 Gew.-% Natriumsulfat 33 Gew.-% Trinatriumcitrat 34 Gew.-% D Kaliumpyrophosphat 50 Gew.-% Trinatriumcitrat 50 Gew.-% E Monokaliumphosphat 50 Gew.-% Trinatriumcitrat 50 Gew.-% The use of one or more of these phosphates together with at least one further crystalline water-soluble salt from the group sodium sulfate, trisodium citrate, sodium carbonate and potassium carbonate is very particularly preferred. Examples of such combinations are: A Monopotassium phosphate 50% by weight sodium sulphate 50% by weight B potassium pyrophosphate 50% by weight sodium sulphate 50% by weight C potassium pyrophosphate 33% by weight sodium sulphate 33% by weight trisodium citrate 34% by weight D potassium pyrophosphate 50% by weight trisodium citrate 50% by weight e Monopotassium phosphate 50% by weight trisodium citrate 50% by weight

    Die Korngröße der verwendeten kristallinen wasserlöslichen Salze beeinflußt in gewissen Grenzen die abrasive Wirkung und die Geschwindigkeit der späteren Auflösung in der Reinigungslösung. Vorzugsweise werden deshalb Korngrößen zwischen etwa 0,1 mm und etwa 2 mm, insbesondere zwischen etwa 0,5 mm und etwa 1 mm eingesetzt.The grain size of the crystalline water-soluble salts used influences in certain limits the abrasive effect and the speed of the later Dissolution in the cleaning solution. Grain sizes are therefore preferred between about 0.1 mm and about 2 mm, in particular between about 0.5 mm and about 1 mm inserted.

    Das Maß der notwendigen Wasserlöslichkeit bei den als Abrasivstoffen verwendeten kristallinen Salzen ergibt sich aus den oben geschilderten Überlegungen für den Fachmann von selbst. Vorzugsweise sollen die erfindungsgemäße verwendeten Salze bei 20 °C in Wasser eine Löslichkeit von mindestens 30 g pro Liter, insbesondere mindestens 300 g pro Liter aufweisen.The degree of water solubility required for those used as abrasives Crystalline salts result from the considerations described above for the person skilled in the art. Preferably, the inventive used salts at 20 ° C in water a solubility of at least 30 g per Liters, especially at least 300 g per liter.

    Vorzugsweise werden die wasserlöslichen kristallinen Salze zur Verstärkung der Reinigungsleistung der flüssigen wäßrigen Reinigungsmittel ohne weitere Zusätze auf die stark verschmutzten Flächen aufgebracht. Es ist aber auch möglich, diese Salze zusammen mit weiteren Hilfs- und Zusatzstoffen, die insbesondere die Reinigungswirkung noch weiter verstärken können, in streufähiger Form aufzubringen. Beispiele derartiger Hilfs- und Zusatzstoffe sind Alkaliträger, Tenside, Komplexbildner, antimikrobielle Wirkstoffe, Bleichmittel sowie Farbstoffe und Duftstoffe und gegebenenfalls auch wasserunlösliche Abrasivkomponenten, sofern dadurch die vorteilhafte Wirkung des erfindungsgemäßen Verfahrens nicht beeinträchtigt wird. Vorzugsweise werden diese Hilfs- und Zusatzstoffe nicht getrennt von dem kristallinen wasserlöslichen Salz auf die Flächen aufgetragen, sondern zusammen mit diesem Salz in einer streufähigen Form konfektioniert, die dann als Reinigungsverstärker (Booster) bezeichnet wird. The water-soluble crystalline salts are preferably used to strengthen the Cleaning performance of liquid aqueous cleaning agents without further Additives applied to the heavily soiled surfaces. It is also possible these salts together with other auxiliaries and additives that in particular can further enhance the cleaning effect, in spreadable shape. Examples of such auxiliaries and additives are Alkali carriers, surfactants, complexing agents, antimicrobial agents, bleaching agents as well as dyes and fragrances and possibly also water-insoluble ones Abrasive components, provided that the beneficial effect of The inventive method is not affected. Preferably be these auxiliaries and additives are not separated from the crystalline water-soluble Salt applied to the surfaces, but together with this salt in one sprinkled form, which is then used as a cleaning booster referred to as.

    Beispiele für geeignete Alkaliträger sind vor allem amorphe alkalische Salze, insbesondere aus der Gruppe der Alkalisilikate. Sie können bis zu etwa 20 Gew.-%, vorzugsweise zwischen etwa 0,5 und etwa 10 Gew.-% des Reinigungsverstärkers ausmachen.Examples of suitable alkali carriers are, above all, amorphous alkaline salts, in particular from the group of alkali silicates. You can up to about 20 wt .-%, preferably between about 0.5 and about 10% by weight of the Identify cleaning amplifier.

    Beispiele für geeignete Tenside sind insbesondere die in fester Form verfügbaren Tenside aus der Klasse der anionischen Tenside, insbesondere die linearen Alkylbenzolsulfonate, die Alkansulfonate und die Fettalkoholsulfate. Sie werden vorzugsweise als Alkalisalze, insbesondere Natriumsalze eingesetzt. Gegebenenfalls können in geringen Mengen aber auch nichtionische Tenside verwendet werden, sofern dadurch die Streufähigkeit des Reinigungsverstärkers nicht beeinträchtigt wird. Die Menge an Tensiden kann bis zu etwa 10 Gew.-%, vorzugsweise zwischen etwa 0,1 und etwa 5 Gew.-% des Reinigungsverstärkers ausmachen.Examples of suitable surfactants are, in particular, those available in solid form Surfactants from the class of anionic surfactants, in particular the linear alkylbenzenesulfonates, the alkane sulfonates and the fatty alcohol sulfates. you will be preferably used as alkali salts, especially sodium salts. If necessary, nonionic surfactants can also be used in small quantities are used, provided that this increases the spreadability of the cleaning amplifier is not affected. The amount of surfactants can be up to about 10% by weight, preferably between about 0.1 and about 5% by weight of the cleaning booster turn off.

    Komplexbildner dienen in erster Linie zur Komplexierung von Calcium-, Magnesium- und Eisenionen. Beispiele geeigneter Komplexbildner sind etwa Nitrilotriacetat und Ethylendiamintetraacetat. Derartige Komplexbildner können in den Reinigungsverstärkern in Mengen bis zu etwa 30 Gew.-%, vorzugsweise zwischen etwa 0,1 und etwa 10 Gew.-% enthalten sein.Complexing agents primarily serve to complex calcium, magnesium and iron ions. Examples of suitable complexing agents are nitrilotriacetate and ethylenediaminetetraacetate. Such complexing agents can be found in the cleaning boosters in amounts up to about 30% by weight, preferably between about 0.1 and about 10% by weight may be included.

    Antimikrobielle Wirkstoffe dienen in erster Linie zur Desinfektion der Oberflächen, gegebenenfalls aber auch zur Desinfektion der später von der Oberfläche zu entfernenden Reinigungslösung. Beispiele geeigneter antimikrobieller Wirkstoffe sind quartäre Ammoniumverbindungen, Paraformaldehyd, Phenole und Biguanide. Die Menge an diesen Wirkstoffen hängt ganz wesentlich von der Wirksamkeit der verwendeten Einzelsubstanzen ab und kann daher in weiten Grenzen schwanken. So sind in den Reinigungsverstärkern Gehalte bis zu etwa 20 Gew.-%, vorzugsweise zwischen etwa 0,1 und etwa 5 Gew.-% durchaus möglich. Antimicrobial agents primarily serve to disinfect the surfaces, but possibly also for disinfection of those to be removed later from the surface Cleaning solution. Examples of suitable antimicrobial agents are quaternary ammonium compounds, paraformaldehyde, phenols and Biguanides. The amount of these active ingredients depends very much on the Effectiveness of the individual substances used and can therefore vary widely Limits fluctuate. So there are up to about in the cleaning boosters 20% by weight, preferably between about 0.1 and about 5% by weight possible.

    Bleichmittel dienen im allgemeinen zur chemischen Entfernung bleichbarer Verschmutzungen und in besonderen Fällen zur Verstärkung der desinfizierenden Wirkung. Geeignet sind beispielsweise Bleichmittel auf Basis von Aktivsauerstoff, wie etwa Natriumperborat, Natriumpercarbonat und feste Peroxycarbonsäuren, oder Bleichmittel auf Basis von Aktivchlor, wie etwa Natriumdichlorisocyanurat und Natriumhypochlorit. Auch hier richtet sich die Menge in weiten Grenzen nach der Wirksamkeit des Bleichmittels. Sie kann in den Reinigungsverstärkern bis etwa 20 Gew.-%, vorzugsweise zwischen etwa 1 und etwa 5 Gew.-% betragen.Bleaching agents are generally used for the chemical removal of bleachable soiling and in special cases to reinforce the disinfectant Effect. Bleaches based on active oxygen are suitable, for example, such as sodium perborate, sodium percarbonate and solid peroxycarboxylic acids, or bleaches based on active chlorine, such as sodium dichloroisocyanurate and sodium hypochlorite. Here, too, the quantity varies within wide limits the effectiveness of the bleach. You can up in the cleaning boosters about 20% by weight, preferably between about 1 and about 5% by weight.

    Die Menge an kristallinem wasserlöslichen Salz, das im erfindungsgemäßen Verfahren auf die Oberflächen aufgebracht wird, richtet sich in erster Linie nach der Schwere der Anschmutzung und nach der Notwendigkeit, diese abrasiv zu entfernen. Da sich das Salz anschließend in dem zusätzlich verwendeten wäßrigen Reinigungsmittel lösen soll, muß die Menge an Salz entsprechend seiner Löslichkeit auch auf die Menge an wäßrigem Reinigungsmittel, die auf derselben Flächen angewendet wird, abgestimmt werden. Vorzugsweise werden deshalb pro m2 der zu reinigenden Fußbodenfläche etwa 10g bis etwa 100 g an kristallinem wasserlöslichenSalz angewandt. Sofern zusammen mit dem Salz weitere Hilfs- und Zusatzstoffe, gegebenenfalls in Form des oben beschriebenen Reinigungsverstärkers aufgebracht werden, sollte auch deren Menge so bemessen sein, daß sie sich in dem zusätzlich aufgebrachten wäßrigen Reinigungsmittel auflösen können.The amount of crystalline water-soluble salt which is applied to the surfaces in the process according to the invention depends primarily on the severity of the soiling and on the need to remove it abrasively. Since the salt should subsequently dissolve in the additionally used aqueous cleaning agent, the amount of salt must also be matched to the amount of aqueous cleaning agent which is used on the same surface in accordance with its solubility. Therefore, preferably about 10 g to about 100 g of crystalline water-soluble salt is used per m 2 of the floor area to be cleaned. If further auxiliaries and additives, if appropriate in the form of the cleaning booster described above, are applied together with the salt, their amount should also be such that they can dissolve in the additionally applied aqueous cleaning agent.

    Zur Durchführung des erfindungsgemäßen Verfahrens wird das kristalline wasserlösliche Salz, gegebenenfalls zusammen mit weiteren Hilfs- und Zusatzstoffen, auf die zu reinigende Fläche gleichmäßig aufgestreut. Anschließend wird die Reinigungslösung entweder manuell oder mit Hilfe geeigneter Geräte auf diese Fläche aufgebracht. Es ist aber auch möglich, diese Reihenfolge umzukehren. Bevor dann die Auflösung des kristallinen Salzes in der Reinigungslösung abgeschlossen ist, wird die Fläche mechanisch bearbeitet. Dies kann im einfachsten Falle von Hand mit Hilfe von Bürsten oder Schrubbern erfolgen; im gewerblichen Bereich wird aber die Bearbeitung mit entsprechenden Maschinen, insbesondere Walzenbürstmaschinen und Tellerbürstmaschinen, wie sie auch ansonsten zur Fußbodenreinigung eingesetzt werden, vorgezogen. Nach Abschluß des Reinigungsvorganges wird die auf dem Fußboden verbleibende Reinigungslösung, in der das kristalline Salz jetzt gelöst vorliegt und in der der abgelöste Schmutz suspendiert ist, vom Fußboden wieder entfernt. Im einfachsten Falle kann diese Lösung von Hand aufgewischt werden; im gewerblichen Bereich werden aber üblicherweise ausschließlich Flüssigsauger für diesen Vorgang benützt. Selbstverständlich können für die Durchführung des Verfahrens auch Kombinationsgeräte eingesetzt werden, die in der Lage sind, mehrere Arbeitsgänge gleichzeitig oder nacheinander durchzuführen, beispielsweise Bürst-Sauger oder Reinigungsautomaten, mit deren Hilfe auch die wäßrige Reinigungslösung auf die Fußbodenflächen aufgebracht werden kann. Gegebenenfalls wird für die Zeit der mechanischen Bearbeitung der stärker angeschmutzten Stellen bis zur Auflösung der kristallinen Salze der Saugvorgang abgeschaltet. Das erfindungsgemäße Verfahren eignet sich für alle harten Fußbodenoberflächen, die üblicherweise mit wäßrigen Reinigungsmitteln behandelt werden, beispielsweise keramische Beläge, PVC und Gummi. Für textile weiche Fußbodenbeläge, wie Teppichböden, ist das Verfahren dagegen im allgemeinen ungeeignet.To carry out the process according to the invention, the crystalline is water-soluble Salt, optionally together with other auxiliary and Additives sprinkled evenly on the surface to be cleaned. Then the cleaning solution is either manually or with the help suitable devices applied to this area. But it is also possible to do this Reverse order. Before the dissolution of the crystalline salt in the Cleaning solution is completed, the surface is machined. In the simplest case, this can be done by hand using brushes or scrubbers respectively; in the commercial sector, however, processing with appropriate Machines, especially roller brushing machines and plate brushing machines, such as they are also used otherwise for floor cleaning. After the cleaning process is complete, it will be on the floor remaining cleaning solution in which the crystalline salt is now dissolved and in which the loosened dirt is suspended, removed from the floor. in the In the simplest case, this solution can be wiped up by hand; in the Commercial areas are usually only liquid vacuum cleaners used for this process. Of course, for the implementation of the Combination devices are also used, which are able to perform several operations simultaneously or in succession, For example, brush vacuums or automatic cleaning machines, with the help of which also aqueous cleaning solution can be applied to the floor surfaces. If necessary, the stronger becomes for the time of the mechanical processing soiled areas until the crystalline salts dissolve off. The inventive method is suitable for all hard Floor surfaces, usually with aqueous cleaning agents treated, for example ceramic coverings, PVC and rubber. For On the other hand, the process is in soft textile floor coverings, such as carpets generally unsuitable.

    Besondere Vorteile bietet es auf solchen Bodenbelägen, auf denen Anschmutzungen besonders fest haften, beispielsweise Sicherheitsfliesen und offenporige Keramikfliesen sowie rutschhemmende Beläge.It offers particular advantages on floor coverings on which soiling adhere particularly firmly, for example safety tiles and open-pore Ceramic tiles and anti-slip coverings.

    In besonderen Fällen kann das erfindungsgemäße Verfahren punktuell zur Reinigung stark verschmutzter Stellen allein angewendet werden. Üblicherweise wird es aber im Zusammenhang mit einer Grundreinigung oder einer Unterhaltsreinigung der Gesamtfläche angewandt. In special cases, the method according to the invention can be selectively used for cleaning heavily soiled areas can be used alone. Usually but in connection with a basic cleaning or a maintenance cleaning of the total area applied.

    Beispielexample

    Die Wirkung des erfindungsgemäßen Verfahrens wurde an einer mit üblichen Methoden nur schwer entfernbaren Verschmutzung, dem Gummiabrieb von Gabelstaplerbereifung auf Epoxidharzböden, untersucht. Dazu wurde zunächst ein Reinigungsverstärker, bestehend aus 90 Gew.-% kristallinem Monokaliumphosphat und 10 Gew.-% kristallinem Natriumsulfat in einer Menge von 50 g pro m2 auf die betroffenen Stellen aufgestreut. Anschließend wurde diese Fläche mit einem Reinigungsautomaten abgefahren, dessen Absaugung zunächst abgestellt worden war. Dabei wurde eine Reinigungsflotte, bestehend aus

  • 10 Gew.-% KOH
  • 5 Gew.-% Tensid
  • 7 Gew.-% Natriumnitrilotriacetat
  • 5 Gew.-% Natriummetasilikat
  • 73 Gew.-% H2O
    • in einer Menge von 100 ml pro m2 aufgebracht und unmittelbar anschließend die Fläche mit den Bürsten des Automaten bearbeitet. Die Bearbeitungszeit betrug durchschnittlich 15 Sekunden pro m2. Nach etwa 10 Minuten wurde die Absaugung des Automaten eingeschaltet und die Fläche nochmals abgefahren, wobei die Reinigungslösung zusammen mit dem vollständig aufgelösten Reinigungsverstärker und den suspendierten Schmutzteilchen praktisch rückstandsfrei von der Fußbodenoberfläche entfernt wurde. Die von der Gabelstaplerbereifung stammende Anschmutzung war danach vollständig vom Fußboden beseitigt.The effect of the method according to the invention was investigated on contamination which is difficult to remove with conventional methods, the rubber abrasion from forklift tires on epoxy resin floors. For this purpose, a cleaning booster consisting of 90% by weight of crystalline monopotassium phosphate and 10% by weight of crystalline sodium sulfate in an amount of 50 g per m 2 was sprinkled on the affected areas. This area was then scanned with an automatic cleaning machine, the suction of which had initially been switched off. A cleaning fleet consisting of
  • 10 wt% KOH
  • 5 wt% surfactant
  • 7% by weight sodium nitrilotriacetate
  • 5% by weight sodium metasilicate
  • 73 wt% H 2 O
    • applied in a quantity of 100 ml per m 2 and immediately afterwards the surface was processed with the brushes of the machine. The processing time averaged 15 seconds per m 2 . After about 10 minutes, the machine's suction system was switched on and the surface was scanned again, the cleaning solution, together with the completely dissolved cleaning booster and the suspended dirt particles, being removed from the floor surface practically without residue. The dirt from the forklift tires was then completely removed from the floor.

    In einem Kontrollversuch, bei dem unter ansonsten gleichen Bedingungen auf den Einsatz des Reinigungsverstärkers verzichtet wurde, konnte nur eine geringfügige Veränderung der Anschmutzung erreicht werden, die aber nicht als ausreichende Reinigung anzusehen war.In a control test in which the conditions are otherwise the same only one could use the cleaning amplifier minor change in soiling can be achieved, but not as adequate cleaning was to be seen.

    Claims (10)

    1. A method for cleaning highly soiled hard floor coverings using a usual liquid aqueous cleaning agent, characterized in that:
      a) in addition to said liquid aqueous cleaning agent, a crystalline water-soluble salt in a free-flowing form is applied to the surfaces to be cleaned; and
      b) these surfaces are then processed mechanically before the crystalline salt becomes dissolved in said liquid aqueous cleaning agent.
    2. The method according to claim 1, in which at least one crystalline water-soluble salt selected from the group consisting of alkali metal phosphates, alkali metal diphosphates and alkali metal polyphosphates is used.
    3. The method according to claim 2, in which at least one crystalline water-soluble salt selected from the group consisting of monopotassium phosphate and tetrapotassium pyrophosphate is used.
    4. The method according to any of claims 1 to 3, in which a substance selected from the group consisting of alkali carriers, surfactants, complexing agents, water-insoluble abrasive components, antimicrobially active agents, bleaching agents and their mixtures in a free-flowing form are applied together with said crystalline water-soluble salt.
    5. The method according to any of claims 1 to 4, in which a mixture of several crystalline water-soluble salts is applied.
    6. The method according to claim 5, in which at least one additional crystalline water-soluble salt in a free-flowing form is applied together with at least one crystalline water-soluble salt selected from the group consisting of alkali metal phosphates, alkali metal diphosphates and alkali metal polyphosphates.
    7. The method according to claim 6, in which at least one additional crystalline water-soluble salt in a free-flowing form is applied together with at least one crystalline water-soluble salt selected from the group consisting of monopotassium phosphate and tetrapotassium pyrophosphate.
    8. The method according to either of claims 6 or 7, in which at least one salt selected from the group consisting of sodium sulfate, trisodium citrate, sodium carbonate and potassium carbonate is applied as said additional crystalline water-soluble salt.
    9. The method according to any of claims 1 to 8, in which said mechanical processing of the soiled surfaces is performed by means of suitable machines, especially from the group consisting of roller brush machines and disk-type brush machines.
    10. The method according to any of claims 1 to 9, in which from 10 to 100 g of crystalline water-soluble salt in a free-flowing form is applied per 1 m2 of the floor surface to be cleaned.
    EP98120204A 1997-11-03 1998-10-24 Method for cleaning floors Expired - Lifetime EP0913460B1 (en)

    Applications Claiming Priority (2)

    Application Number Priority Date Filing Date Title
    DE19748379 1997-11-03
    DE19748379A DE19748379C2 (en) 1997-11-03 1997-11-03 Methods for cleaning floors

    Publications (3)

    Publication Number Publication Date
    EP0913460A2 EP0913460A2 (en) 1999-05-06
    EP0913460A3 EP0913460A3 (en) 1999-07-14
    EP0913460B1 true EP0913460B1 (en) 2003-12-10

    Family

    ID=7847362

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP98120204A Expired - Lifetime EP0913460B1 (en) 1997-11-03 1998-10-24 Method for cleaning floors

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    EP (1) EP0913460B1 (en)
    AT (1) ATE256172T1 (en)
    DE (2) DE19748379C2 (en)

    Family Cites Families (3)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    JPS5855044A (en) * 1981-09-29 1983-04-01 Nippon Junyaku Kk Cleaning agent and cleaning method for dirt, filthy liquid or the like
    GB9210500D0 (en) * 1992-05-13 1992-07-01 Robert Mcbridge Group The Limi Cleaning compositions
    BR9510324A (en) * 1995-02-01 1997-11-11 Ecolab Inc Floor cleaning process

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    Publication number Publication date
    EP0913460A2 (en) 1999-05-06
    DE19748379C2 (en) 1999-10-28
    EP0913460A3 (en) 1999-07-14
    ATE256172T1 (en) 2003-12-15
    DE19748379A1 (en) 1999-05-06
    DE59810393D1 (en) 2004-01-22

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