EP1099791B1 - Composition and method for cleaning leather - Google Patents

Composition and method for cleaning leather Download PDF

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Publication number
EP1099791B1
EP1099791B1 EP00124172A EP00124172A EP1099791B1 EP 1099791 B1 EP1099791 B1 EP 1099791B1 EP 00124172 A EP00124172 A EP 00124172A EP 00124172 A EP00124172 A EP 00124172A EP 1099791 B1 EP1099791 B1 EP 1099791B1
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EP
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Prior art keywords
acid
leather
solution
parts
fat
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EP00124172A
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German (de)
French (fr)
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EP1099791A1 (en
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Uwe Ollert
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Ollert Hermann Andreas
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Ollert Hermann Andreas
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    • 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
    • C11D3/2093—Esters; Carbonates
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
    • C11D17/0008—Detergent materials or soaps characterised by their shape or physical properties aqueous liquid non soap compositions
    • C11D17/0017—Multi-phase liquid compositions
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/0005—Other compounding ingredients characterised by their effect
    • C11D3/0031—Carpet, upholstery, fur or leather cleansers
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16—Organic compounds
    • C11D3/20—Organic compounds containing oxygen
    • C11D3/2075—Carboxylic acids-salts thereof

Definitions

  • the invention relates to a means for cleaning or washing leather.
  • a water-based cleaning agent for cleaning in particular of textiles with the detergent being added to a larger amount of water surfactant component, a base and an organic acid or a salt of Base or organic acid and terpene contains (WO 94/18300).
  • Specially for Cleaning of textile products is for this known means a PH value in Range of 5.5 to 6.5 proposed.
  • the invention has for its object to provide a means for cleaning leather show improved properties. To solve this problem are a means for cleaning leather according to claim 1 and a method for Cleaning of leather or leather products according to claim 8 educated.
  • the agent according to the invention can therefore also be referred to as "leather detergent” or “leather washing concentrate”.
  • the peculiarity of the agent for cleaning leather according to the invention is that this agent prepared as an aqueous solution has a pH in the range between 3.5 and 6.8.
  • the aqueous solution contains at least one acid, preferably an organic acid, for example a volatile organic acid, such as, for example, formic acid, acetic acid, citric acid and / or phthalic acid.
  • the detergent according to the invention contains a suitable Washing substance, which preferably contains no proportions of bleach and enzymes and preferably at least one suitable fatty alkyl sulfate and / or fatty ether sulfate.
  • a suitable fatty alkyl sulfate and / or fatty ether sulfate may also be used.
  • the agent according to the invention contains at least one water-insoluble oil or fat in emulsion.
  • a suitable emulsifier is provided, for example, already from the aforementioned fatty alkyl sulfate or Fatty ether sulfate or alkyl ether sulfate is formed.
  • the fatty alkyl sulfates or fatty ether sulfates act in the composition according to the invention cleaning or washing (especially in the alkaline range). At the same time acting but these sulfates also tannin (in the acidic range), which is also an optimal Washing result contributes, i. with the agent according to the invention is a problem Cleaning or washing leather possible, with the quality or suppleness of the leather as well as the respective color scheme are fully preserved, namely regardless of the method used to make each leather and aids.
  • composition according to the invention In the application of the composition according to the invention there are no Environmental issues. Another advantage of the composition according to the invention also exists in that it has an extraordinary hard water resistance, so that on Water softener can be dispensed with in the application of the agent.
  • the unsulfonated water-insoluble oil or fat (refatting constituent) is, for example, a chlorinated fatty acid methyl ester of coconut oil.
  • a chlorinated fatty acid methyl ester of coconut oil instead of this, other natural (vegetable or animal oils) come into consideration, ie saturated fatty acids (C 4 -C 30 ) or unsaturated fatty acids (C 11 -C 2 2).
  • Chlorine paraffins of chain length C 10 -C 27 can also be used as a replenishing additive.
  • the agent according to the invention preferably also contains one Ethylene oxide adduct and / or alkene sulfate and / or propanol-2. This ingredient works dirt dissolving.
  • an anionic or amphoteric leather fatliquoring agent added to optimize the emulsifiability of natural, water-insoluble oils preferably as an additional constituent.
  • This leather fat repellent which in professional use again as "Leather fatlicker” are water-soluble, natural or synthetic Oils or fats that are sulfated, sulfited or emulsified.
  • a further constituent is preferably a small amount of one non-organic, surfactant wetting agents provided. This wetting agent is used to reduce the surface tension of the water and thus the Increase washing effect.
  • the agent contains, for example, even a small Proportion of perfume oil and / or dye.
  • the perfume oil provides the typical Leather smell especially on the cleaned leather.
  • the dye is specifically designed to give the detergent a corresponding intrinsic color.
  • the agent according to the invention is preferably as a concentrate or washing concentrate prepared by the user then with an appropriate amount of water is diluted.
  • the invention further relates to a method for cleaning leather or leather products.
  • This method is characterized in particular by the fact that the actual cleaning, for example with a detergent of the aforementioned type pretreatment of the leather or leather product in one acid pretreatment bath, preferably in an aqueous, acidic Pretreatment bath precedes its PH in a range between 3.5 and 5.5, using appropriate acids, preferably the organic acids mentioned above. It has been shown that through this pretreatment a washing out in bold colors, like black, Blue, Bordeaux or red colored leather, which usually comes with these colors over-dyed, not done.
  • This pretreatment is in the acid bath or fixer especially in so-called mix parts of particular importance, i. at Articles, for example items of clothing, some of leather and some of them Textile material exist. Pretreatment will help with intense colors unwanted migration of the color or color pigments from the leather in the Textile material effectively prevented.
  • a typical composition of the agent according to the invention is given in the following table: 30 - 60 Parts of fatty alkyl sulfate and / or ether sulfate 0 - 30 Parts ethylene oxide adduct, alkane sulfate and / or propanol-2 0 - 30 Parts of vegetable or animal fat, insoluble in water 0 - 30 Parts of anionic or amphoteric leather fatliquor 0 - 5 Parts of non-ionic wetting agent 0 - 5 Parts of perfume oil 0 - 0.05 Parts dye rest Water and acid
  • the acid is one or more organic acids and preferably volatile organic acids, such as formic acid, acetic acid, citric acid and Phthalic acid. Of course, mixtures of different acids be used.
  • the proportion of acid is chosen so that for the means or for the agent forming the aqueous solution in total a PH value in the range between 3.5 and 6.8.
  • the fatty alkyl sulfates and ether sulfates are each such as, for example, aliphatic alcohols with the chain length C 10 -C 20 or olefins.
  • alkyl ether sulfates from alipathic Alcohols possible, but ethoxylated before sulfation.
  • the vegetable or animal oil or fat is preferably already the above mentioned chlorinated fatty acid methyl esters from coconut oil. But other natural ones too Oils, i. saturated or unsaturated fatty acids can be used.
  • the leather fatliquor is preferably a paraffin sulphonic acid amide of the general formula R-SO 2 -NH-CH 2 -CH 2 -SO 3 Na.
  • the dye used is an acidic aniline dye.

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Emergency Medicine (AREA)
  • Treatment And Processing Of Natural Fur Or Leather (AREA)
  • Detergent Compositions (AREA)

Abstract

Environmentally friendly cleaner for leather (products) comprises a solution of water and a washing agent and an unsulfonated, water-insoluble oil or fat and is of pH 3.5-6.

Description

Die Erfindung bezieht sich auf ein Mittel zum Reinigen bzw. Waschen von Leder.The invention relates to a means for cleaning or washing leather.

Die Reinigung von Leder bzw. Lederwaren unter Verwendung von Lösungsmitteln, wie z.B. Tri-Perchloräthylen oder Waschbenzin ist bekannt. Diese Art der Reinigung ist zwar heute allgemein üblich, aber äußerst problematisch. Dies steht u.a. im Zusammenhang mit der Vielzahl der möglichen Verfahren beim Gerben bzw. der Vielzahl der hierbei eingesetzten Hilfsmittel. Hierdurch können auch die Eigenschaften von Leder und das Verhalten beim Reinigen mit den herkömmlichen Reinigungs- bzw. Lösungsmitteln sehr unterschiedlich sein. In den meisten Fällen läßt sich daher nicht sagen, wie sich ein Leder oder eine bestimmte Lederware beim Reinigen verhält, so daß auch Reinigungsbetriebe üblicherweise bei der Lederreinigung keine Garantie übernehmen.The cleaning of leather or leather goods using solvents, such as e.g. Tri-perchlorethylene or benzine is known. This type of cleaning is Although common today, but extremely problematic. This stands u.a. in the Connection with the large number of possible processes in tanning or the Variety of tools used here. This also allows the properties of leather and the behavior when cleaning with the conventional cleaning or Solvents be very different. In most cases, therefore, can not be say how a leather or a certain leather product behaves when cleaning, so that also cleaning companies usually in the leather cleaning no guarantee take.

Die bekannten Mittel zum Reinigen von Leder haben darüber hinaus den Nachteil, daß ihre Anwendung aufwendige Maschinen bzw. Anlagen erfordert, die insbesondere auch schon aus Gründen des Umweltschutzes eine Rückgewinnung des jeweiligen Reinigungs- bzw. Lösungsmittels ermöglicht. Zur Vermeidung dieser Nachteile wurde bereits ein Mittel zum Reinigen von Leder mit den Merkmalen des Oberbegriffs des Anspruchs 1 vorgeschlagen.The known means for cleaning leather also have the disadvantage that their application requires complex machinery or equipment, in particular even for reasons of environmental protection a recovery of the respective Cleaning or solvent allows. To avoid these disadvantages was already a means of cleaning leather with the features of the preamble of Proposed claim 1.

Bekannt ist weiterhin ein Reinigungsmittel auf Wasserbasis zur Reinigung insbesondere von Textilien, wobei das Reinigungsmittel zu einem größeren Anteil an Wasser eine oberflächenaktive Komponente, eine Base und eine organische Säure oder ein Salz der Base oder organische Säure sowie Terpen enthält (WO 94/18300). Speziell zum Reinigen von textilen Produkten wird für dieses bekannte Mittel ein PH-Wert im Bereich von 5,5 bis 6,5 vorgeschlagen. Für andere Reinigungsanwendungen wird ein PH-Werk größer als 7, vorzugsweise größer als 9, z. B. im Bereich zwischen 9 und 12 vorgeschlagen. Also known is a water-based cleaning agent for cleaning in particular of textiles, with the detergent being added to a larger amount of water surfactant component, a base and an organic acid or a salt of Base or organic acid and terpene contains (WO 94/18300). Specially for Cleaning of textile products is for this known means a PH value in Range of 5.5 to 6.5 proposed. For other cleaning applications is a PH plant greater than 7, preferably greater than 9, z. In the range between 9 and 12 proposed.

Der Erfindung liegt die Aufgabe zugrunde, ein Mittel zum Reinigen von Leder mit verbesserten Eigenschaften aufzuzeigen. Zur Lösung dieser Aufgabe sind ein Mittel zum Reinigen von Leder entsprechend dem Patentanspruch 1 und ein Verfahren zum Reinigen von Leder oder Lederprodukten entsprechend dem Patentanspruch 8 ausgebildet.The invention has for its object to provide a means for cleaning leather show improved properties. To solve this problem are a means for cleaning leather according to claim 1 and a method for Cleaning of leather or leather products according to claim 8 educated.

Bei dem erfindungsgemäßen Mittel wird als "Lösungsmittel" ebenfalls Wasser verwendet und das Reinigen von Leder erfolgt in der wässerigen Phase. Das erfindungsgemäße Mittel kann daher auch als "Leder-Waschmittel" bzw. "Leder-Waschkonzentrat" bezeichnet werden.
Die Besonderheit des erfindungsgemäßen Mittels zum Reinigen von Leder besteht darin, daß dieses als wässrige Lösung hergestellte Mittel einen PH-Wert im Bereich zwischen 3,5 und 6,8 aufweist. Zur Einstellung des PH-Wertes enthält die wässerige Lösung wenigstens eine Säure, vorzugsweise eine organische Säure, beispielsweise eine flüchtige organische Säure, wie z.B. Ameisensäure, Essigsäure, Zitronensäure und/oder Phtalsäure.Water is also used as the "solvent" in the composition according to the invention and leather is cleaned in the aqueous phase. The agent according to the invention can therefore also be referred to as "leather detergent" or "leather washing concentrate".
The peculiarity of the agent for cleaning leather according to the invention is that this agent prepared as an aqueous solution has a pH in the range between 3.5 and 6.8. To adjust the pH, the aqueous solution contains at least one acid, preferably an organic acid, for example a volatile organic acid, such as, for example, formic acid, acetic acid, citric acid and / or phthalic acid.

Es hat sich gezeigt, daß in dem sauren Klima des Mittels zum Reinigen von Leder insbesondere Fett, Farbstoffe und Gerbstoffe beim Reinigen im Leder verbleiben, d.h. die Bindung an das Lederkollagen nicht beeinträchtigt wird und es nicht zu einem Lösen oder Ausbluten dieser Stoffe aus dem Leder kommt. Der isoelektrische Punkt des Leders wird durch den angegebenen PH-Wert vorteilhaft beeinflußt.It has been found that in the acidic climate of the agent for cleaning leather In particular, fat, dyes and tannins remain in the leather during cleaning, i. the attachment to the leather collagen is not compromised and it does not become one Loosening or bleeding of these substances comes from the leather. The isoelectric point of the Leather is favorably influenced by the stated pH value.

Neben Wasser und Säure enthält das erfindungsgemäße Waschmittel eine geeignete Waschsubstanz, die vorzugsweise keine Anteile an Bleichmittel und Enzyme enthält und bevorzugt wenigstens ein geeignetes Fettalkylsulfat und/oder Fettethersulfat ist. Anstelle hiervon oder zusätzlich hierzu kann auch ein Alkylethersulfat verwendet sein. Weiterhin enthält das erfindungsgemäße Mittel zumindest ein wasserunlösliches Öl oder Fett in Emulsion. Für dieses Öl bzw. Fett ist ein geeigneter Emulgator vorgesehen, der beispielsweise bereits von dem vorstehend erwähnten Fettalkylsulfat oder Fettethersulfat oder Alkylethersulfat gebildet ist.In addition to water and acid, the detergent according to the invention contains a suitable Washing substance, which preferably contains no proportions of bleach and enzymes and preferably at least one suitable fatty alkyl sulfate and / or fatty ether sulfate. Instead of or in addition to this, an alkyl ether sulfate may also be used. Furthermore, the agent according to the invention contains at least one water-insoluble oil or fat in emulsion. For this oil or fat, a suitable emulsifier is provided, for example, already from the aforementioned fatty alkyl sulfate or Fatty ether sulfate or alkyl ether sulfate is formed.

Die Fettalkylsulfate bzw. Fettethersulfate wirken bei dem erfindungsgemäßen Mittel reinigend bzw. waschend (insbesondere im alkalischen Bereich). Gleichzeitig wirken diese Sulfate aber auch gerbend (im sauren Bereich), was ebenfalls zu einem optimalen Waschergebnis beiträgt, d.h. mit dem erfindungsgemäßen Mittel ist ein problemloses Reinigen bzw. Waschen von Leder möglich, wobei die Qualität bzw. Geschmeidigkeit des Leders sowie auch die jeweilige Farbgebung voll erhalten bleiben, und zwar unabhängig von den beim Herstellen des jeweiligen Leders verwendeten Verfahren und Hilfsmitteln.The fatty alkyl sulfates or fatty ether sulfates act in the composition according to the invention cleaning or washing (especially in the alkaline range). At the same time acting but these sulfates also tannin (in the acidic range), which is also an optimal Washing result contributes, i. with the agent according to the invention is a problem Cleaning or washing leather possible, with the quality or suppleness of the leather as well as the respective color scheme are fully preserved, namely regardless of the method used to make each leather and aids.

Bei der Anwendung des erfindungsgemäßen Mittels ergeben sich keine Umweltprobleme. Ein weiterer Vorteil des erfindungsgemäßen Mittels besteht auch darin, daß es eine außerordentliche Hartwasserbeständigkeit aufweist, so daß auf Wasserenthärter bei der Anwendung des Mittels verzichtet werden kann.In the application of the composition according to the invention there are no Environmental issues. Another advantage of the composition according to the invention also exists in that it has an extraordinary hard water resistance, so that on Water softener can be dispensed with in the application of the agent.

Das unsulfonierte wasserunlösliche Öl bzw. Fett (rückfettender Bestandteil) ist beispielsweise ein chlorierter Fettsäuremethylester aus Kokosöl. Anstelle hiervon kommen auch andere natürliche (pflanzliche oder tierische Öle) in Betracht, d.h. gesättigte Fettsäuren (C4-C30) bzw. ungesättigte Fettsäuren (C11-C22). Als rückfettender Zusatz können auch Chlorparaffine der Kettenlänge C10-C27 verwendet werden.The unsulfonated water-insoluble oil or fat (refatting constituent) is, for example, a chlorinated fatty acid methyl ester of coconut oil. Instead of this, other natural (vegetable or animal oils) come into consideration, ie saturated fatty acids (C 4 -C 30 ) or unsaturated fatty acids (C 11 -C 2 2). Chlorine paraffins of chain length C 10 -C 27 can also be used as a replenishing additive.

Als Bestandteil enthält das erfindungsgemäße Mittel bevorzugt noch ein Ethylenoxidaddukt und/oder Alkensulfat und/oder Propanol-2. Dieser Bestandteil wirkt schmutzlösend.As a constituent, the agent according to the invention preferably also contains one Ethylene oxide adduct and / or alkene sulfate and / or propanol-2. This ingredient works dirt dissolving.

Zur Optimierung der Emulgierbarkeit der natürlichen, wasserunlöslichen Öle ist bevorzugt als weiterer Bestandteil ein anionisches oder amphoteres Lederfettungsmittel zugesetzt. Diese Lederfettungsmittel, die im Fachgebrauch nochmals als "Lederfettlicker" bezeichnet werden, sind wasserlösliche, natürliche oder synthetische Öle oder Fette, die sulfatiert, sulfitiert oder emulgiert sind.To optimize the emulsifiability of natural, water-insoluble oils preferably as an additional constituent an anionic or amphoteric leather fatliquoring agent added. This leather fat repellent, which in professional use again as "Leather fatlicker" are water-soluble, natural or synthetic Oils or fats that are sulfated, sulfited or emulsified.

Als weiterer Bestandteil ist schließlich vorzugsweise ein geringer Anteil an einem nichtiogenen, oberflächenaktiven Netzmittel vorgesehen. Dieses Netzmittel dient dazu, die Oberflächenspannung des Wassers herabzusetzen und somit den Wascheffekt zu erhöhen.Finally, a further constituent is preferably a small amount of one non-organic, surfactant wetting agents provided. This wetting agent is used to reduce the surface tension of the water and thus the Increase washing effect.

Als weiterer Bestandteil enthält das Mittel beispielsweise auch noch einen geringen Anteil an Parfümöl und/oder Farbstoff. Das Parfümöl sorgt für den typischen Ledergeruch insbes. auch beim gereinigten Leder. Der Farbstoff dient speziell dazu, dem Waschmittel eine entsprechende Eigenfarbe zu verleihen.As a further component, the agent contains, for example, even a small Proportion of perfume oil and / or dye. The perfume oil provides the typical Leather smell especially on the cleaned leather. The dye is specifically designed to give the detergent a corresponding intrinsic color.

Das erfindungsgemäße Mittel ist vorzugsweise als Konzentrat bzw. Waschkonzentrat hergestellt, welches vom Verwender dann mit einer geeigneten Menge Wasser verdünnt wird.The agent according to the invention is preferably as a concentrate or washing concentrate prepared by the user then with an appropriate amount of water is diluted.

Die Erfindung bezieht sich weiterhin auch auf ein Verfahren zum Reinigen von Leder oder Lederprodukten. Dieses Verfahren zeichnet sich insbesondere dadurch aus, daß der eigentlichen Reinigung beispielsweise mit einem Reinigungsmittel der vorgenannten Art eine Vorbehandlung des Leders oder Lederproduktes in einem sauren Vorbehandlungsbad, vorzugsweise in einem wässerigen, sauren Vorbehandlungsbad vorausgeht, dessen PH-Wert auf einem Bereich zwischen 3,5 und 5,5 eingestellt ist, und zwar unter Verwendung von entsprechenden Säuren, vorzugsweise der vorstehend erwähnten organischen Säuren. Es hat sich gezeigt, daß durch diese Vorbehandlung ein Auswaschen eines in kräftigen Farben, wie Schwarz, Blau, Bordaux oder Rot eingefärbten Leders, welches in der Regel mit diesen Farben überfärbt ist, nicht erfolgt. Diese Vorbehandlung in dem sauren Bad oder Fixierbad ist insbesondere bei sogenannten Mix-Teilen von besonderer Bedeutung, d.h. bei Artikeln, beispielsweise Bekleidungsstücken, die teilweise aus Leder und teilweise aus Textilmaterial bestehen. Durch die Vorbehandlung wird auch bei intensiven Farben ein unerwünschtes Wandern der Farbe bzw. Farbpigmente aus dem Leder in das Textilmaterial wirksam verhindert.The invention further relates to a method for cleaning leather or leather products. This method is characterized in particular by the fact that the actual cleaning, for example with a detergent of the aforementioned type pretreatment of the leather or leather product in one acid pretreatment bath, preferably in an aqueous, acidic Pretreatment bath precedes its PH in a range between 3.5 and 5.5, using appropriate acids, preferably the organic acids mentioned above. It has been shown that through this pretreatment a washing out in bold colors, like black, Blue, Bordeaux or red colored leather, which usually comes with these colors over-dyed, not done. This pretreatment is in the acid bath or fixer especially in so-called mix parts of particular importance, i. at Articles, for example items of clothing, some of leather and some of them Textile material exist. Pretreatment will help with intense colors unwanted migration of the color or color pigments from the leather in the Textile material effectively prevented.

Eine typische Zusammensetzung des erfingungsgemäßen Mittels ist in der nachfolgenden Tabelle angegeben: 30 - 60 Teile Fettalkylsulfat und/oder -ethersulfat 0 - 30 Teile Ethylenoxidaddukt, Alkansulfat und/oder Propanol-2 0 - 30 Teile pflanzliches oder tierisches Fett, wasserunlöslich 0 - 30 Teile anionischer oder amphoterer Lederfettlicker 0 - 5 Teile nicht ionogenes Netzungsmittel 0 - 5 Teile Parfümöl 0 - 0,05 Teile Farbstoff Rest Wasser und Säure A typical composition of the agent according to the invention is given in the following table: 30 - 60 Parts of fatty alkyl sulfate and / or ether sulfate 0 - 30 Parts ethylene oxide adduct, alkane sulfate and / or propanol-2 0 - 30 Parts of vegetable or animal fat, insoluble in water 0 - 30 Parts of anionic or amphoteric leather fatliquor 0 - 5 Parts of non-ionic wetting agent 0 - 5 Parts of perfume oil 0 - 0.05 Parts dye rest Water and acid

Als Säure eignet sich eine oder mehrere organische Säuren und dabei vorzugsweise flüchtige organische Säuren, wie Ameisensäure, Essigsäure, Zitronensäure und Phtalsäure. Selbstverständlich können auch Mischungen verschiedener Säuren eingesetzt werden. Der Anteil an Säure wird so gewählt, daß sich für das Mittel bzw. für die das Mittel bildende wässrige Lösung insgesamt eine PH-Wert im Bereich zwischen 3,5 und 6,8 aufweist.As the acid is one or more organic acids and preferably volatile organic acids, such as formic acid, acetic acid, citric acid and Phthalic acid. Of course, mixtures of different acids be used. The proportion of acid is chosen so that for the means or for the agent forming the aqueous solution in total a PH value in the range between 3.5 and 6.8.

Speziell bei sogenannten Mixteilen, d.h. Leder, Textil-Mischprodukten, wie z.B. Leder-Textil-Mischbekleidungsstücken ist es sinnvoll, daß der Behandlung mit dem erfindungsgemäßem Reinigungsmittel eine Vorbehandlung mit einem säuren Fixiermittel, d.h. mit einer sauren wässrigen vorausgeht, die im einfachsten Fall aus Wasser und einer Säure, beispielsweise aus einer der vorgenannten Säuren besteht und deren PH-Wert auf einen Bereich zwischen 3,5 - 5,5 eingestellt ist.Especially with so-called mix parts, i. Leather, textile blended products, e.g. Textile leather mixing clothing it makes sense that the treatment with the Inventive detergent pretreatment with an acid Fixing agent, i. preceded by an acidic aqueous, which in the simplest case Water and an acid, for example, consists of one of the aforementioned acids and whose PH value is set in a range between 3.5 - 5.5.

Die Fettalkylsulfate und -ethersulfate sind jeweils solche beispielsweise aus aliphatischen Alkoholen mit der Kettenlänge C10-C20 oder aus Olefinen.The fatty alkyl sulfates and ether sulfates are each such as, for example, aliphatic alcohols with the chain length C 10 -C 20 or olefins.

Anstelle hiervon oder zusätzlich hierzu sind auch Alkylethersulfate aus alipathischen Alkoholen möglich, jedoch vor Sulfatierung ethoxyliert.Instead of or in addition to this are also alkyl ether sulfates from alipathic Alcohols possible, but ethoxylated before sulfation.

Das pflanzliche oder tierische Öl bzw. Fett ist bevorzugt das vorstehend bereits erwähnte chlorierte Fettsäuremethylester aus Kokosöl. Aber auch andere natürliche Öle, d.h. gesättigte oder ungesättigte Fettsäuren können eingesetzt werden. The vegetable or animal oil or fat is preferably already the above mentioned chlorinated fatty acid methyl esters from coconut oil. But other natural ones too Oils, i. saturated or unsaturated fatty acids can be used.

Bei dem Lederfettlicker handelt es sich bevorzugt um ein Paraffinsulfosäureamid der allgemeinen Formel R-SO2-NH-CH2-CH2-SO3Na.The leather fatliquor is preferably a paraffin sulphonic acid amide of the general formula R-SO 2 -NH-CH 2 -CH 2 -SO 3 Na.

Als Farbstoff wird ein saurer Anilinfarbstoff verwendet.
Die Erfindung wurde voranstehend an einem Ausführungsbeispiel beschrieben. Es versteht sich, daß Änderungen sowie Abwandlungen möglich sind, ohne daß dadurch der der Erfindung zugrundeliegende Erfindungsgedanke verlassen wird.The dye used is an acidic aniline dye.
The invention has been described above by means of an embodiment. It is understood that changes and modifications are possible without thereby departing from the inventive idea underlying the invention.

Claims (9)

  1. Means for cleaning leather or leather products, comprising a solution that contains water and at least one washing substance as well as a proportion of an unsulphonated, water-insoluble oil or fat in emulsion,
    characterised in that
    the pH value of the solution is set at a range between 3.5 and 6.8, and that the washing substance is a fatty alcohol or at least one fat alkyl sulphate or -ether sulphate and/or alkyl sulphate.
  2. Means according to claim 1, characterised in that in order to set the pH value, the solution contains organic, preferably organic volatile acids, such as e.g. formic acid, ethanoic acid, citric acid or phthalic acid.
  3. Means according to claim 1 or 2, characterised in that the solution contains an emulsifier for the unsulphonated, water-insoluble oil or fat.
  4. Means according to one of the claims 1 - 3, characterised in that the solution contains an anionic or amphoteric leather dubbing liquor or a sulphated or sulphitised or emulsified natural or synthetic oil or fat.
  5. Means according to one of the claims 1 - 4, characterised in that
    the solution contains a wetting agent, preferably a non-ionogenic wetting agent, and/or that
    the solution contains as a further additive an essential oil (perfume oil) and/or a dye, preferably an aniline acid dye, and/or that
    the solution additionally contains ethylene oxide adduct, alkane sulphate and/or propanol-2.
  6. Means according to one of the preceding claims, characterised in that the solution has the following composition:
    30 - 60
    parts fat alkyl sulphates and -ether sulphates
    0 - 30
    parts ethylene oxide adduct, alkane sulphate and/or propanol-2
    0 - 30
    parts vegetable or animal oil-fat, water-insoluble
    0 - 30
    parts anionic or amphoteric leather dubbing liquor
    0-5
    parts non-ionogenic wetting agent
    0 - 5
    parts perfume oil
    0 - 0.005
    parts aniline acid dye
    remainder
    water and acid
  7. Means according to one of the preceding claims, characterised in that the washing substance is at least one substance from the group amide ether sulphate, secondary alkane sulphate, sarcoside, methyl tauride, isethionate, ammonium oxide, phosphoric ester, quaternary ammonium compounds.
  8. Method for cleaning leather or leather products with a solution or washing substance, characterised in that prior to treatment with the solution or washing substance, a pre-treatment takes place in an acid bath with a pH value in the range between 3.5 and 5.5, wherein the pre-treatment bath is for example an aqueous solution, e.g. an aqueous solution that contains at least one inorganic volatile acid.
  9. Method according to claim 8, characterised in that the pre-treatment bath contains at least one volatile inorganic acid, for example from the group of formic acid, ethanoic acid, citric acid and phthalic acid.
EP00124172A 1999-11-12 2000-11-08 Composition and method for cleaning leather Expired - Lifetime EP1099791B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19954468 1999-11-12
DE19954468A DE19954468A1 (en) 1999-11-12 1999-11-12 Leather cleaning preparations

Publications (2)

Publication Number Publication Date
EP1099791A1 EP1099791A1 (en) 2001-05-16
EP1099791B1 true EP1099791B1 (en) 2005-10-12

Family

ID=7928814

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00124172A Expired - Lifetime EP1099791B1 (en) 1999-11-12 2000-11-08 Composition and method for cleaning leather

Country Status (3)

Country Link
EP (1) EP1099791B1 (en)
AT (1) ATE306579T1 (en)
DE (2) DE19954468A1 (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD96085A1 (en) * 1972-02-28 1973-03-12
DE9011506U1 (en) * 1990-08-07 1990-11-29 Bernd Neumann Malermeister Gmbh, 1000 Berlin, De
DE4216187C2 (en) * 1992-02-21 2002-06-06 Ollert Uwe Use of an aqueous solution of water, from at least one washing substance, as a leather detergent
DE4303415C2 (en) * 1993-02-05 1997-05-28 Adolf Riedl Emulsion containing chitosan
GB9302869D0 (en) * 1993-02-12 1993-03-31 Rogers Neil Cleaning

Also Published As

Publication number Publication date
EP1099791A1 (en) 2001-05-16
DE19954468A1 (en) 2001-06-07
ATE306579T1 (en) 2005-10-15
DE50011323D1 (en) 2006-02-23

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