EP0170144B1 - Washing process for sensitive textiles - Google Patents

Washing process for sensitive textiles Download PDF

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Publication number
EP0170144B1
EP0170144B1 EP85108821A EP85108821A EP0170144B1 EP 0170144 B1 EP0170144 B1 EP 0170144B1 EP 85108821 A EP85108821 A EP 85108821A EP 85108821 A EP85108821 A EP 85108821A EP 0170144 B1 EP0170144 B1 EP 0170144B1
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EP
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Prior art keywords
weight
component
detergent
glycol ether
fatty acids
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EP85108821A
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German (de)
French (fr)
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EP0170144A1 (en
Inventor
Heinz-Manfred Wilsberg
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Henkel AG and Co KGaA
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Henkel AG and Co KGaA
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Priority to AT85108821T priority Critical patent/ATE31547T1/en
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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
    • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/38—Cationic compounds
    • C11D1/52—Carboxylic amides, alkylolamides or imides or their condensation products with alkylene oxides
    • C11D1/523—Carboxylic alkylolamides, or dialkylolamides, or hydroxycarboxylic amides (R1-CO-NR2R3), where R1, R2 or R3 contain one hydroxy group per alkyl group
    • 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
    • C11D1/38—Cationic compounds
    • C11D1/65—Mixtures of anionic with cationic compounds
    • C11D1/652—Mixtures of anionic compounds with carboxylic amides or alkylol 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
    • C11D3/0026—Low foaming or foam regulating compositions

Definitions

  • Detergents which should also be suitable for the gentle cleaning of highly sensitive textiles made of wool or silk, are known per se. They generally react neutral to weakly alkaline and, in addition to anionic surfactants such as alkylbenzenesulfonate, fatty alcohol sulfate or alkylglycol ether sulfate, often also contain nonionic or cationic compounds.
  • anionic surfactants such as alkylbenzenesulfonate, fatty alcohol sulfate or alkylglycol ether sulfate.
  • the non-ionic surfactants are said to increase the cleaning ability, while the cationic compounds are said to improve the softness and the feel of the washed textiles.
  • anionic surfactants such as alkylbenzenesulfonate, fatty alcohol sulfate or alkylglycol ether sulfate
  • Component (a) is derived from fatty alcohols or fatty alcohol mixtures of natural or synthetic origin, which can be linear or optionally methyl-branched in the 2-position (oxo radical).
  • Suitable fatty alcohols are primarily lauryl, myristyl and cetyl and stearyl alcohol and mixtures thereof.
  • the statistical mean is expediently at C 12 -C 14 .
  • the statistical number of ethylene glycol ether groups is 1 to 3, preferably 2, ie, as is customary in industrial alkoxylation, small amounts of non-ethoxylated alcohols or ethoxylates with more than 3 glycol ether groups may also be present.
  • the sulfuric acid half-esters produced by sulfation from these alkyl (poly) glycol ethers are in the form of the sodium salt.
  • the proportion of the detergents in this surfactant component is preferably 7 to 20% by weight and in particular 9 to 15% by weight.
  • Component (b) is derived from fatty acids of natural or synthetic origin, preferably from natural fatty acid mixtures, such as coconut fatty acids (after separation of the fractions with less than 12 carbon atoms). Suitable mixtures can e.g. B. Lauric, myristic, palmitic, stearic and oleic acid, but the proportion of saturated C12-C14 fatty acids should be at least 50 mol% and preferably at least 60 mol%.
  • the fatty acid monoethanolamides, which are produced by reaction with monoethanolamine, should not contain any free ethanolamine and should react essentially neutrally. It is therefore advisable to neutralize any alkaline constituents that are still present, preferably with organic acids, such as acetic acid, lactic acid, glycolic acid or citric acid, so that the pH of the composition is preferably 6.5 to 7.5.
  • the proportion of component (b) is preferably 1 to 4% by weight and in particular 1.5 to 3% by weight.
  • the weight ratio of components (a) and (b) to one another should preferably be 4: 1 to 10: 1.
  • Component (c) consists of an emulsified silicone defoamer, in particular an organopolysiloxane, in a mixture of 1 to 10% by weight. based on component (c), a finely divided, preferably silanized silica and an emulsifier, with which a homogeneous distribution of the organopolysiloxane in water or the water-containing mixture of components (a) and (b) is brought about.
  • Dimethylpolysiloxanes which are mixed with silanated are particularly useful Silicic acid and nonionic emulsifiers are present. Suitable emulsifiers are e.g. B.
  • polyglycol ethers which are substituted by longer-chain alcohols, alkylphenols, fatty acids and fatty acid amides.
  • High molecular weight unsubstituted polyglycol ethers as well as block polymers of polyethylene glycol and polypropylene glycol and mixtures of the aforementioned emulsifiers are also suitable.
  • the mixtures of dimethylpolysiloxane, silica and emulsifier are commercially available as ready-made products.
  • non-surfactant or non-alkaline detergent additives such as colors and fragrances
  • preservatives such as. B. formalin
  • complexing agent for traces of heavy metals such as. B. ethylene diaminotetraacetate
  • low molecular weight carboxylic or polycarboxylic acids for adjusting the pH and means for adjusting the viscosity of the aqueous concentrate, such as lower alcohols, glycerol or glycol ether and neutral salts, such as sodium chloride.
  • the proportion of these components is less than 1% by weight, usually less than 0.5% by weight. Their total amount should not exceed 5% by weight.
  • the detergents used are in the form of aqueous, storage-stable concentrates. In this form, they can be dosed particularly easily or distributed homogeneously in the washing solution. They can be used both for manual washing and for washing in the washing machine, with machine washing being preferred, especially since the design of the agent is especially coordinated for this purpose.
  • the agents are suitable for washing highly sensitive textiles, especially knitted fabrics made of wool and silk, including sensitive angora wool. These textiles do not become hard when achieving a very good cleaning result, but do not retain their natural fluffiness and their light and loose feel when washing by hand, but also when washing in washing machines (washing machines) in the so-called wool washing program.
  • the mechanical processing of the textile goods in the washing machine should be comparatively low when the fleet is high, which is generally guaranteed in washing machines with special wool washing programs.
  • the washing temperature is preferably 25 to 35 ° C and the liquor ratio is preferably 1:25 to 1:30.
  • Foam problems i. H. Foaming of the washing solution or heavy re-foaming when rinsing with water does not occur.
  • the washing treatment in the washing machine was carried out in a washing machine of the horizontal drum trade using the wool washing program.
  • Foaming was moderate, i. H. the space above the liquid level was about half filled with foam. Foaming during rinsing was very low in the first rinse cycle and did not occur in the second and third rinse cycle.
  • Agent I contained 19% nonionic surfactant (fatty alcohol polyglycol ether) and 4% dimethylditalgalkylammonium chloride.
  • Agent II contained 23.5% nonionic surfactant (fatty alcohol polyglycol ether) and 2.5% quaternary ammonium salt (plasticizer).
  • Agent III contained 12.5% alkylbenzenesulfonate, 7.5% fatty alcohol diglycol ether sulfate, 1% fatty acid diethanolamide and 1% ampholytic surfactant in addition to small amounts of sodium pyrophosphate.

Abstract

Delicate fabrics of wool or silk are hand-washed or machine-washed using an aqueous detergent which is free from inorganic builder salts and optical brighteners and which shows a substantially neutral reaction, comprising (a) from 5 to 25% by weight of an alkyl glycol ether sulfate containing primary C12-C18-alkyl groups and from 1 to 3 ethylene glycol ether groups, (b) from 0.5 to 5% by weight of monoethanolamides of C12-C18-fatty acids, (c) from 0.1 to 1.0% by weight of an emulsified silicone defoamer, and water. In addition, the detergent may contain (d) up to 5% by weight of non-surface-active detergent additives, such as sequestrants, preservatives, dyes and perfumes. The treated fabrics have a soft feel.

Description

Waschmittel, die auch zur schonenden Reinigung hochempfindlicher Textilien aus Wolle oder Seide geeignet sein sollen, sind an sich bekannt. Sie reagieren im allgemeinen neutral bis schwach alkalisch und enthalten neben anionischen Tensiden, wie Alkylbenzolsulfonat, Fettalkoholsulfat oder Alkylglykolethersulfat, vielfach noch nichtionische oder kationische Verbindungen. Die nichtionischen Tenside sollen das Reinigungsvermögen steigern, während die kationischen Verbindungen die Weichheit und den Griff der gewaschenen Textilien verbessern sollen. Es hat sich jedoch gezeigt, daß eine Reihe von anionische Tensiden, wie z. B. Alkylbenzolsulfonate, bei empfindlichen waschbaren Wollsorten, insbesondere Merino- und Angorawolle, bei wiederholter Anwendung die Faserstruktur beeinträchtigen können, während z. B. Fettalkoholsulfate bei den notwendigen niedrigen Waschtemperaturen nur unzureichend waschen. Nichtionische Tenside haben sich in diesen Fällen ebenfalls als weniger günstig erwiesen, da damit gewaschene empfindliche Wolltextilien sich vergleichsweise hart und spröde anfühlen. Diese Effekte können sich bei einem Einsatz in Waschmaschinen noch erheblich steigern. Ein Zusatz von weichmachenden kationischen Tensiden, wie er für solche Zwecke empfohlen wird, vermag den Griffverlust nur unvollständig auszugleichen und führt bei gleichzeitiger Gegenwart anionischer Tenside zu einem Rückgang an Waschkraft.Detergents, which should also be suitable for the gentle cleaning of highly sensitive textiles made of wool or silk, are known per se. They generally react neutral to weakly alkaline and, in addition to anionic surfactants such as alkylbenzenesulfonate, fatty alcohol sulfate or alkylglycol ether sulfate, often also contain nonionic or cationic compounds. The non-ionic surfactants are said to increase the cleaning ability, while the cationic compounds are said to improve the softness and the feel of the washed textiles. However, it has been shown that a number of anionic surfactants, such as. As alkylbenzenesulfonates, in delicate washable types of wool, especially merino and angora wool, can affect the fiber structure with repeated use, while z. B. Wash fatty alcohol sulfates insufficiently at the necessary low washing temperatures. In these cases, non-ionic surfactants have also proven to be less favorable, since sensitive wool textiles washed with them feel comparatively hard and brittle. These effects can increase considerably when used in washing machines. The addition of softening cationic surfactants, as recommended for such purposes, can only partially compensate for the loss of grip and, in the presence of anionic surfactants, leads to a decrease in washing power.

Auch Zusätze an Buildersalzen, wie schwach alkalisch reagierende Pyrophosphate oder freies Alkanolamin, sind zur Steigerung der Waschkraft schon empfohlen worden, jedoch führt ihre Anwendung bei besonders empfindlichen Wollgeweben bzw. -gewirken ebenfalls zu einem Qualitätsverlust. Fettsäuremono- und -diethanolamine sind gleichfalls bekannte Zusätze zu Feinwaschmitteln. Ihre hohe Schaumaktivität führt jedoch dazu, daß die Waschflüssigkeit bei einem Einsatz in Waschmaschinen, insbesondere in Waschautomaten mit horizontal gelagerter Trommel, vielfach überschäumt. Dies gilt insbesondere bei Anwesenheit schaumaktiver Aniontenside.Additions to builder salts, such as weakly alkaline pyrophosphates or free alkanolamine, have already been recommended to increase washing power, but their use in particularly sensitive wool fabrics or knitted fabrics also leads to a loss of quality. Fatty acid mono- and diethanolamines are also known additives for mild detergents. However, their high foam activity causes the washing liquid to foam over many times when used in washing machines, in particular in washing machines with a horizontally mounted drum. This is especially true in the presence of foam-active anionic surfactants.

Die Erfindung ist geeignet, die vorstehend geschilderten Nachteile zu vermeiden. Gegenstand der Erfindung ist die Verwendung eines flüssigen, von anorganischen Gerüstsalzen und optischen Aufhellern freien, einen pH-Wert von 6 bis 8 aufweisenden Mittels der Zusammensetzung

  • (a) 5 bis 25 Gew.-% Alkylglykolethersulfat-Natriumsalz aus primären C12-C18-Alkoholen mit durchschnittlich 1 bis 3 Ethylenglykolethergruppen,
  • (b) 0,5 bis 5 Gew.-% Fettsäuremonoethanolamid aus C,2-C,8-Fettsäuren, deren Anteil an gesättigten C12-C14-Fettsäuren wenigstens 50 Mol-% beträgt,
  • (c) 0,05 bis 0,5 Gew.-% an emulgiertem Silikonentschäumer,
  • (d) 0 bis 5 Gew.-% an nichtoberflächenaktiven Waschmittelzusätzen,
  • (e) Rest Wasser,

wobei das Gewichtsverhältnis von Komponente (a) zu Komponente (b) 3:1 bis 25: beträgt, als Waschmittel für Textilien aus Wolle und Seide.The invention is suitable for avoiding the disadvantages described above. The invention relates to the use of a liquid composition of the composition which is free of inorganic skeletal salts and optical brighteners and has a pH of 6 to 8
  • (a) 5 to 25% by weight of alkyl glycol ether sulfate sodium salt from primary C 12 -C 18 alcohols with an average of 1 to 3 ethylene glycol ether groups,
  • (b) 0.5 to 5% by weight of fatty acid monoethanolamide from C, 2-C, 8-fatty acids, the proportion of saturated C 12 -C 14 fatty acids of which is at least 50 mol%,
  • (c) 0.05 to 0.5% by weight of emulsified silicone defoamer,
  • (d) 0 to 5% by weight of non-surface active detergent additives,
  • (e) rest of water,

wherein the weight ratio of component (a) to component (b) is 3: 1 to 25: as a detergent for textiles made of wool and silk.

Die Komponente (a) leitet sich von Fettalkoholen bzw. Fettalkoholgemischen natürlichen oder synthetischen Ursprungs ab, die linear oder gegebenenfalls in 2-Stellung methylverzweigt (Oxo-Rest) sein können. Geeignete Fettalkohole sind in erster Linie Lauryl-, Myristyl- und Cetyl- und Stearylalkohol sowie deren Gemische. Das statistische Mittel liegt zweckmäßigerweise bei C12-C14. Die Zahl der Ethylenglykolethergruppen beträgt im statistischen Mittel 1 bis 3, vorzugsweise 2, d. h. es können, wie bei einer technischen Alkoxylierung üblich, auch geringe Anteile an nicht ethoxylierten Alkoholen bzw. Ethoxylaten mit mehr als 3 Glykolethergruppen vorliegen. Die durch Sulfatierung aus diesen Alkyl-(poly)-glykolethern hergestellten Schwefelsäurehalbester liegen in Form des Natriumsalzes vor. Der Anteil der Mittel an dieser Tensidkomponente beträgt vorzugsweise 7 bis 20 Gew.-% und insbesondere 9 bis 15 Gew.-%.Component (a) is derived from fatty alcohols or fatty alcohol mixtures of natural or synthetic origin, which can be linear or optionally methyl-branched in the 2-position (oxo radical). Suitable fatty alcohols are primarily lauryl, myristyl and cetyl and stearyl alcohol and mixtures thereof. The statistical mean is expediently at C 12 -C 14 . The statistical number of ethylene glycol ether groups is 1 to 3, preferably 2, ie, as is customary in industrial alkoxylation, small amounts of non-ethoxylated alcohols or ethoxylates with more than 3 glycol ether groups may also be present. The sulfuric acid half-esters produced by sulfation from these alkyl (poly) glycol ethers are in the form of the sodium salt. The proportion of the detergents in this surfactant component is preferably 7 to 20% by weight and in particular 9 to 15% by weight.

Die Komponente (b) leitet sich von Fettsäuren natürlichen oder synthetischen Ursprungs, vorzugsweise von natürlichen Fettsäuregemischen, wie Cocosfettsäuren (nach Abtrennung der Anteile mit weniger als 12 C-Atomen) ab. Geeignete Gemische können z. B. Laurin-, Myristin-, Palmitin-, Stearin- und Ölsäure enthalten, jedoch soll der Anteil an gesättigten C12-C14-Fettsäuren wenigstens 50 Mol-% und vorzugsweise mindestens 60 Mol-% betragen. Die Fettsäuremonoethanolamide, die durch Umsetzung mif Monoethanolamin hergestellt werden, sollen kein freies Ethanolamin enthalten und im wesentlichen neutral reagieren. Es empfiehlt sich daher, gegebenenfalls noch vorhandene, alkalisch reagierende Bestandteile zu neutralisieren, vorzugsweise mit organischen Säuren, wie Essigsäure, Milchsäure, Glykolsäure oder Citronensäure, so daß der pH-Wert des Mittels vorzugsweise 6,5 bis 7.5 beträgt.Component (b) is derived from fatty acids of natural or synthetic origin, preferably from natural fatty acid mixtures, such as coconut fatty acids (after separation of the fractions with less than 12 carbon atoms). Suitable mixtures can e.g. B. Lauric, myristic, palmitic, stearic and oleic acid, but the proportion of saturated C12-C14 fatty acids should be at least 50 mol% and preferably at least 60 mol%. The fatty acid monoethanolamides, which are produced by reaction with monoethanolamine, should not contain any free ethanolamine and should react essentially neutrally. It is therefore advisable to neutralize any alkaline constituents that are still present, preferably with organic acids, such as acetic acid, lactic acid, glycolic acid or citric acid, so that the pH of the composition is preferably 6.5 to 7.5.

Der Anteil der Komponente (b) beträgt vorzugsweise 1 bis 4 Gew.-% und insbesondere 1,5 bis 3 Gew.-%. Das Gewichtsverhältnis der Komponenten (a) und (b) zueinander soll vorzugsweise 4 : 1 bis 10 : 1 betragen.The proportion of component (b) is preferably 1 to 4% by weight and in particular 1.5 to 3% by weight. The weight ratio of components (a) and (b) to one another should preferably be 4: 1 to 10: 1.

Die Komponente (c) besteht aus einem emulgierten Silikonentschäumer, insbesondere aus einem Organopolysiloxan, das im Gemisch mit 1 bis 10 Gew.-%. bezogen auf Komponente (c), einer feinteiligen, vorzugsweise silanierten Kieselsäure sowie einem Emulgiermittel vorliegt, mit dem eine homogene Verteilung des Organopolysiloxans in Wasser bzw. dem wasserhaltigen Gemisch der Komponenten (a) und (b) bewirkt wird. Brauchbar sind insbesondere Dimethylpolysiloxane, die im Gemisch mit silanierter Kieselsäure und nichtionogenen Emulgatoren vorliegen. Geeignete Emulgatoren sind z. B. Polyglykolether, die durch längerkettige Alkohole, Alkylphenole, Fettsäuren und Fettsäureamide substituiert sind. Auch höhermolekulare unsubstituierte Polyglykolether sowie Blockpolymere aus Polyethylenglykol und Polypropylenglykol sowie Gemische der vorgenannten Emulgatoren sind geeignet. Im allgemeinen sind die Gemische aus Dimethylpolysiloxan, Kieselsäure und Emulgator als bereits fertig konfektionierte Produkte im Handel.Component (c) consists of an emulsified silicone defoamer, in particular an organopolysiloxane, in a mixture of 1 to 10% by weight. based on component (c), a finely divided, preferably silanized silica and an emulsifier, with which a homogeneous distribution of the organopolysiloxane in water or the water-containing mixture of components (a) and (b) is brought about. Dimethylpolysiloxanes which are mixed with silanated are particularly useful Silicic acid and nonionic emulsifiers are present. Suitable emulsifiers are e.g. B. polyglycol ethers which are substituted by longer-chain alcohols, alkylphenols, fatty acids and fatty acid amides. High molecular weight unsubstituted polyglycol ethers as well as block polymers of polyethylene glycol and polypropylene glycol and mixtures of the aforementioned emulsifiers are also suitable. In general, the mixtures of dimethylpolysiloxane, silica and emulsifier are commercially available as ready-made products.

Weitere fakultative Inhaltsstoffe sind nichttensidische bzw. nicht alkalisch reagierende Waschmittelzusätze, wie Farb- und Duftstoffe, Konservierungsmittel, wie z. B. Formalin, Komplexierungsmittel für Schwermetallspuren, wie z. B. Ethylendiaminotetraacetat, niedermolekulare Carbon- bzw. Polycarbonsäuren zur Einstellung des pH-Wertes und Mittel zur Einstellung der Viskosität das wäßrigen Konzentrates, wie niedere Alkohole, Glycerin oder Glykolether und Neutralsalze, wie Natriumchlorid. Der Anteil dieser Bestandteile beträgt im einzelnen weniger als 1 Gew.-%, meist weniger als 0,5 Gew.-%. Ihre Gesamtmenge soll 5 Gew.-% nicht übersteigen.Other optional ingredients are non-surfactant or non-alkaline detergent additives, such as colors and fragrances, preservatives, such as. B. formalin, complexing agent for traces of heavy metals, such as. B. ethylene diaminotetraacetate, low molecular weight carboxylic or polycarboxylic acids for adjusting the pH and means for adjusting the viscosity of the aqueous concentrate, such as lower alcohols, glycerol or glycol ether and neutral salts, such as sodium chloride. The proportion of these components is less than 1% by weight, usually less than 0.5% by weight. Their total amount should not exceed 5% by weight.

Die zur Verwendung kommenden Waschmittel liegen als wäßrige, lagerstabile Konzentrate vor. In dieser Form lassen sie sich besonders leicht dosieren bzw. in der Waschlösung homogen verteilen. Sie können sowohl für das manuelle Waschen als auch zum Waschen in der Waschmaschine eingesetzt werden, wobei das maschinelle Waschen bevorzugt ist, zumal die Konzeption des Mittels für diesen Einsatzzweck besonders abgestimmt ist. Die Mittel eignen sich zum Waschen hochempfindlicher Textilien, insbesondere Wirkwaren aus Wolle und Seide, einschließlich empfindlicher Angorawolle. Diese Textilien werden bei Erzielung eines sehr guten Reinigungsergebnisses nicht hart, sondern behalten nicht bei der Handwäsche, sondern auch beim Waschen in Waschmaschinen (Waschautomaten) im sogenannten Wollwaschprogramm ihre natürliche Flauschigkeit und ihren leichten und lockeren Griff.The detergents used are in the form of aqueous, storage-stable concentrates. In this form, they can be dosed particularly easily or distributed homogeneously in the washing solution. They can be used both for manual washing and for washing in the washing machine, with machine washing being preferred, especially since the design of the agent is especially coordinated for this purpose. The agents are suitable for washing highly sensitive textiles, especially knitted fabrics made of wool and silk, including sensitive angora wool. These textiles do not become hard when achieving a very good cleaning result, but do not retain their natural fluffiness and their light and loose feel when washing by hand, but also when washing in washing machines (washing machines) in the so-called wool washing program.

Gegenstand der Erfindung ist somit auch ein Verfahren zum schonenden Waschen von Wolltextilien in Trommelwaschmaschinen bei geringer mechanischer Bearbeitung des Waschgutes in einem Temperaturbereich von 20 °C bis 40 °C und einem Flottenverhältnis (kg Waschgut pro Liter Waschlauge) von 1 : 20 bis 1 : 40, das dadurch gekennzeichnet ist, daß man 2 bis 6 g/I eines einen pH-Wert von 6,5 bis 7,5 aufweisenden flüssigen Waschmittels der folgenden Zusammensetzung anwendet :

  • (a) 5 bis 25 Gew.-% Alkylglykolethersulfat-Natriumsalz aus primären C12-G18-Alkoholen mit durchschnittlich 1 bis 3 Ethyleneglykolethergruppen,
  • (b) 0,5 bis 5 Gew.-% Fettsäuremonoethanolamid aus C12-C18-Fettsäuren, deren Anteil an gesättigten C12-C14-Fettsäuren wenigstens 50 Mol-% beträgt,
  • (c) 0,1 bis 0,5 Gew.-% emulgiertem Silikonentschäumer,
  • (d) 0 bis 5 Gew.-% an sonstigen nichtoberflächenaktiven bzw. nicht alkalischen Waschmittelzusätzen,
  • (e) Rest Wasser,

wobei das Gewichtsverhältnis der Komponente (a) zur Komponente (b) 3 : 1 bis 50 : 1 beträgt.The invention thus also relates to a method for gentle washing of wool textiles in drum washing machines with little mechanical processing of the laundry in a temperature range from 20 ° C to 40 ° C and a liquor ratio (kg of laundry per liter of washing solution) from 1:20 to 1:40 , which is characterized in that 2 to 6 g / l of a liquid detergent having a pH of 6.5 to 7.5 and having the following composition are used:
  • (a) 5 to 25% by weight of alkyl glycol ether sulfate sodium salt from primary C 12 -G 18 alcohols with an average of 1 to 3 ethylene glycol ether groups,
  • (b) 0.5 to 5% by weight of fatty acid monoethanolamide from C 12 -C 18 fatty acids, the proportion of saturated C12-C14 fatty acids of which is at least 50 mol%,
  • (c) 0.1 to 0.5% by weight of emulsified silicone defoamer,
  • (d) 0 to 5% by weight of other non-surface-active or non-alkaline detergent additives,
  • (e) rest of water,

wherein the weight ratio of component (a) to component (b) is 3: 1 to 50: 1.

Die mechanische Bearbeitung des Textilgutes in der Waschmaschine soll bei hohem Flottenstand vergleichsweise gering sein, was bei Waschautomaten mit speziellen Wollwaschprogrammen im allgemeinen gewährleistet ist. Die Waschtemperatur beträgt vorzugsweise 25 bis 35 °C und das Flottenverhältnis vorzugsweise 1 : 25 bis 1 : 30. Schaumprobleme, d. h. ein Überschäumen der Waschlösung bzw. ein starkes Nachschäumen bei dem Nachspülen mit Wasser, treten nicht auf.The mechanical processing of the textile goods in the washing machine should be comparatively low when the fleet is high, which is generally guaranteed in washing machines with special wool washing programs. The washing temperature is preferably 25 to 35 ° C and the liquor ratio is preferably 1:25 to 1:30. Foam problems, i. H. Foaming of the washing solution or heavy re-foaming when rinsing with water does not occur.

BeispieleExamples Beispiel 1example 1

Eine Lösung von 10 kg Natrium-alkylglykolethersulfat (2 Ethylenglykolethergruppen. Cocosalkylreste, Kettenlänge 55 % C,2, 22 % C14, 11 % C16 und 12 % C1s) in 84 kg Wasser wurde auf 85 °C erwärmt. Nach Zusatz von 2 kg Cocosfettsäuremonoethanolamid, 200 g Glycerin und 1 kg Glykoldistearat (Trübungsmittel mit Perlglanzeffekt) und Homogenisieren wurden nach Kühlen der Lösung auf 30 °C 100 g Natriumethylendiaminotetraacetat und 600 g einer 20-gewichtsprozentigen wäßrigen Silikonentschäumeremulsion zugesetzt (Polymekon WM 20 der Firma Goldschmidt, Essen, Bundesrepublik Deutschland), was einem Zusatz von 120 g reinem wasserfreiem Silikonentschäumer entspricht. In gleicher Weise können auch 1 200 g Entschäumer-Emulsion DB 110 A der DOW-CORNING, USA (Aktivstoffgehalt 10 Gew.-%) verwendet werden. Nach Zusatz von 100 g 30 %iger Formalinlösung (Konservierungsmittel), 1 kg Parfümöl und 500 g Natriumchlorid wurde die Lösung mit 100 g Citronensäure auf einen pH-Wert von 7 eingestellt. Der Wassergehalt des fertigen Flüssigwaschmittels betrug insgesamt 84,9 Gew.-%. Die Lösung war lager- und kältebeständig.A solution of 10 kg sodium alkylglycol ether sulfate (2 ethylene glycol ether groups. Cocosalkyl residues, chain length 55% C, 2 , 22% C 14 , 11% C 16 and 12% C 1s ) in 84 kg water was heated to 85 ° C. After adding 2 kg of coconut fatty acid monoethanolamide, 200 g of glycerol and 1 kg of glycol distearate (opacifying agent with pearlescent effect) and homogenizing, after cooling the solution to 30 ° C., 100 g of sodium ethylenediaminotetraacetate and 600 g of a 20% by weight aqueous silicone defoamer emulsion were added (Polymidt WM 20 from Goldschmidt , Essen, Federal Republic of Germany), which corresponds to the addition of 120 g of pure anhydrous silicone defoamer. 1,200 g of defoamer emulsion DB 110 A from DOW-CORNING, USA (active substance content 10% by weight) can also be used in the same way. After adding 100 g of 30% formalin solution (preservative), 1 kg of perfume oil and 500 g of sodium chloride, the solution was adjusted to a pH of 7 with 100 g of citric acid. The total water content of the finished liquid detergent was 84.9% by weight. The solution was stable in storage and cold.

Beispiel 2Example 2

In der in Beispiel 1 beschriebenen Weise wurde eine stabile wäßrige Lösung der folgenden Komponenten hergestellt (in Gew.-%) :

Figure imgb0001
A stable aqueous solution of the following components was prepared (in% by weight) in the manner described in Example 1:
Figure imgb0001

Die Produkte wurden an Pullovern aus 50 % Angorawolle und 50 % Lammwolle unter den folgenden Bedingungen getestet :

Figure imgb0002
The products were tested on pullovers made of 50% angora wool and 50% lambswool under the following conditions:
Figure imgb0002

Die Waschbehandlung in der Waschmaschine wurde in einem Waschatomaten des Handels mit horizontal gelagerter Trommel unter Anwendung des Wollwaschprogramms durchgeführt. Die Schaumentwicklung war mäßig, d. h. der Freiraum über dem Flüssigkeitsniveau war etwa zur Hälfte mit Schaum gefüllt. Ein Nachschäumen während des Nachspülens war im 1. Spülgang sehr gering und trat im zweiten und dritten Nachspülgang nicht auf.The washing treatment in the washing machine was carried out in a washing machine of the horizontal drum trade using the wool washing program. Foaming was moderate, i. H. the space above the liquid level was about half filled with foam. Foaming during rinsing was very low in the first rinse cycle and did not occur in the second and third rinse cycle.

Für die Weichheit und den Verfilzungsgrad nach 5 Wäschen wurden folgende Noten vergeben :

  • Note 1 : sehr weich, keine Verfilzung ;
  • Note 2 : weich, leichte Verfilzung ;
  • Note 3 : mäßig weich, deutliche Verfilzung.
The following grades were awarded for the softness and degree of matting after 5 washes:
  • Grade 1: very soft, no matting;
  • Grade 2: soft, slight matting;
  • Grade 3: moderately soft, clear matting.

Für das an standardisierten Testanschmutzungen geprüfte Reinigungsergebnis, bezogen auf gleiche Tensid-Anwendungskonzentration, wurden ebgenfalls 3 Bewertungen vergeben :

  • Note 1 : sehr gut ;
  • Note 2 : gut;
  • Note 3 : befriedigend.
For the cleaning result tested on standardized test soiling, based on the same surfactant application concentration, 3 ratings were also assigned:
  • Grade 1: very good;
  • Grade 2: good;
  • Grade 3: satisfactory.

Zum Vergleich wurden 3 Wollwaschmittel des Handels herangezogen.For comparison, 3 wool detergents from the trade were used.

Mittel I enthielt 19 % nichtionisches Tensid (Fettalkoholpolyglykolether) und 4 % Dimethylditalgalkylammoniumchlorid.Agent I contained 19% nonionic surfactant (fatty alcohol polyglycol ether) and 4% dimethylditalgalkylammonium chloride.

Mittel II enthielt 23,5 % nichtionisches Tensid (Fettalkoholpolyglykolether) und 2,5 % quartäres Ammoniumsalz (Weichmacher).Agent II contained 23.5% nonionic surfactant (fatty alcohol polyglycol ether) and 2.5% quaternary ammonium salt (plasticizer).

Mittel III enthielt 12,5 % Alkylbenzolsulfonat, 7,5 % Fettalkoholdiglykolethersulfat, 1 % Fettsäurediethanolamid und 1 % eines ampholytischen Tensid neben geringen Mengen Natriumpyrophosphat.Agent III contained 12.5% alkylbenzenesulfonate, 7.5% fatty alcohol diglycol ether sulfate, 1% fatty acid diethanolamide and 1% ampholytic surfactant in addition to small amounts of sodium pyrophosphate.

Die Ergebnisse sind in der folgenden Tabelle zusammengestellt.

Figure imgb0003
The results are summarized in the following table.
Figure imgb0003

Claims (4)

1. The use of a liquid detergent which is free from inorganic builder salts and optical brighteners and which has a pH-value of from 6 to 8, consisting of
(a) from 5 to 25 % by weight of the sodium salt of an alkyl glycol ether sulfate of primary C12-C18 alcohols containing on average from 1 to 3 ethylene glycol ether groups,
(b) from 0.5 to 5 % by weight of a fatty acid monoethanolamide of C12-C18 fatty acids containing at least 50 mole % of saturated C12-C14 fatty acids,
(c) from 0.05 to 0.5 % by weight of emulsified silicone defoamer,
(d) from 0 to 5 % by weight of non-surface-active detergent additives,
(e) remainder water,

the ratio by weight of component (a) to component (b) amounting to between 3:1 and 25 : 1, as detergents for fabrics of wool and silk.
2. The use of a detergent as claimed in Claim 1, in which the content of component (a) amounts to between 7 and 20 % by weight and the content of component (b) to between 1 and 4 % by weight.
3. The use of a detergent as claimed in Claim 1, in which the content of component (a) amounts to between 9 and 15 % by weight, the content of component (b) to between 1.5 and 3 % by weight and the ratio by weight of (a) to (b) to between 4 : 1 and 10 : 1.
4. A process for the mild washing of woollen fabrics in drum-type washing machines at a temperature in the range from 20 °C to 40 °C and with a liquor ratio (kg of fabrics being washed per liter of wash liquor) of from 1 20 to 1 40, the fabrics being washed undergoing minimal mechanical stressing, characterized in that it uses from 2 to 6 g/I of a liquid detergent having a pH-value of from 6.5 to 7.5 and the following composition :
(a) from 5 to 25 % by weight of the sodium salt of an alkyl glycol ether sulfate of primary C12-C18 alcohols containing on average from 1 to 3 ethylene glycol ether groups,
(b) from 0.5 to 5 % by weight of a fatty acid monoethanolamide of C12-C18 fatty acids containing at least 50 mole % of saturated C12-Cl4 fatty acids.
(c) from 0.1 to 0.5 % by weight of emulsified silicone defoamer.
(d) from 0 to 5 % by weight of other non-surface-active or non-alkaline detergent additives,
(e) remainder water,

the ratio by weight of component (a) to (b) amounting to between 3 : 1 and 50 : 1.
EP85108821A 1984-07-23 1985-07-15 Washing process for sensitive textiles Expired EP0170144B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85108821T ATE31547T1 (en) 1984-07-23 1985-07-15 WASHING PROCEDURE FOR DELICATE TEXTILES.

Applications Claiming Priority (2)

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DE19843427078 DE3427078A1 (en) 1984-07-23 1984-07-23 WASHING METHOD FOR SENSITIVE TEXTILES
DE3427078 1984-07-23

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EP0170144B1 true EP0170144B1 (en) 1987-12-23

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DE3520710A1 (en) * 1985-06-10 1986-12-11 Henkel KGaA, 4000 Düsseldorf WASHING METHOD FOR SENSITIVE TEXTILES
GB2200365A (en) * 1987-01-26 1988-08-03 Goodjet Ltd Detergent composition
FR2666347B1 (en) * 1990-08-31 1992-12-11 Oreal WASHING COMPOSITIONS BASED ON SILICONES AND METHOD FOR IMPLEMENTING SAME.
GB9524494D0 (en) * 1995-11-30 1996-01-31 Unilever Plc Detergent compositions containing soil release polymers
GB9524491D0 (en) * 1995-11-30 1996-01-31 Unilever Plc Detergent compositions containing soil release polymers
GB9524488D0 (en) * 1995-11-30 1996-01-31 Unilever Plc Detergent compositions containing soil release polymers
US5972869A (en) * 1996-12-17 1999-10-26 Colgate-Palmolive Co Mildly acidic laundry detergent composition providing improved protection of fine fabrics during washing and enhanced rinsing in hand wash
US6966696B1 (en) 1998-10-24 2005-11-22 The Procter & Gamble Company Methods for laundering delicate garments in a washing machine
US6995124B1 (en) 1998-10-24 2006-02-07 The Procter & Gamble Company Methods for laundering delicate garments in a washing machine
US7185380B2 (en) * 1998-10-24 2007-03-06 The Procter & Gamble Company Methods for laundering delicate garments in a washing machine comprising a woven acrylic coated polyester garment container
US20070118998A1 (en) * 2000-08-25 2007-05-31 The Procter & Gamble Company Methods for laundering delicate garments in a washing machine
US20030050214A1 (en) * 2001-09-10 2003-03-13 The Procter & Gamble Company Home laundry method
DE102004026938A1 (en) * 2004-06-01 2005-12-22 Bayer Cropscience Gmbh Low-foam aqueous formulations for crop protection
DE102007028213A1 (en) * 2007-06-20 2008-12-24 BSH Bosch und Siemens Hausgeräte GmbH Washing machine and method of treating laundry with foam
BRPI0909154A2 (en) * 2008-03-14 2015-11-24 Procter & Gamble liquid detergent for hand washing low foaming clothes
US8492325B2 (en) 2010-03-01 2013-07-23 The Procter & Gamble Company Dual-usage liquid laundry detergents comprising a silicone anti-foam

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US4714479A (en) 1987-12-22
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ATE31547T1 (en) 1988-01-15
DE3561248D1 (en) 1988-02-04

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