EP0998547B1 - Use of polyelectrolytes as sequestering agents - Google Patents
Use of polyelectrolytes as sequestering agents Download PDFInfo
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- EP0998547B1 EP0998547B1 EP98940181A EP98940181A EP0998547B1 EP 0998547 B1 EP0998547 B1 EP 0998547B1 EP 98940181 A EP98940181 A EP 98940181A EP 98940181 A EP98940181 A EP 98940181A EP 0998547 B1 EP0998547 B1 EP 0998547B1
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- polyelectrolytes
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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
- C11D3/16—Organic compounds
- C11D3/20—Organic compounds containing oxygen
- C11D3/2075—Carboxylic acids-salts thereof
- C11D3/2086—Hydroxy carboxylic acids-salts thereof
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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
- C11D3/2075—Carboxylic acids-salts thereof
- C11D3/2082—Polycarboxylic acids-salts thereof
-
- 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
- C11D3/37—Polymers
- C11D3/3746—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C11D3/3757—(Co)polymerised carboxylic acids, -anhydrides, -esters in solid and liquid compositions
- C11D3/3765—(Co)polymerised carboxylic acids, -anhydrides, -esters in solid and liquid compositions in liquid compositions
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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
- C11D3/37—Polymers
- C11D3/3746—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C11D3/3769—(Co)polymerised monomers containing nitrogen, e.g. carbonamides, nitriles or amines
- C11D3/3773—(Co)polymerised monomers containing nitrogen, e.g. carbonamides, nitriles or amines in liquid compositions
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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
- C11D3/395—Bleaching agents
- C11D3/3956—Liquid compositions
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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
- C11D1/66—Non-ionic compounds
- C11D1/662—Carbohydrates or derivatives
-
- 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
- C11D1/66—Non-ionic compounds
- C11D1/75—Amino oxides
Definitions
- the invention relates to the use of polyelectrolytes for reducing the deposition of heavy metals on textile fibers during washing with aqueous bleaches.
- EP-A 0137551 and EP-A 0447261 (Unilever) is the use of amine oxides with soap or sarcosinate and other anionic surfactants, such as alkyl sulfates, alkyl ether sulfates, secondary alkanesulfonates or alkylbenzenesulfonates known as a thickening component for Hypochlorilantsen.
- amine oxides with soap or sarcosinate and other anionic surfactants such as alkyl sulfates, alkyl ether sulfates, secondary alkanesulfonates or alkylbenzenesulfonates known as a thickening component for Hypochlorilantsen.
- aqueous bleach compositions containing sodium hypochlorite and anionic surfactants are also known.
- the hypochlorite concentration of these agents is 0.1 to 8% by weight of active chlorine.
- the complex object of the invention was to counteract the yellowing of the laundry by the influence of heavy metal ions and to provide sequestering agents that allow the production of aqueous bleaching agents, in particular chlorine bleaches, which are chlorine stable, textile friendly and haulver texts as possible have sufficiently high viscosity and with high Fleckentfemungshack accordingly reliably prevent the deposition of metal traces on the tissue.
- aqueous bleaching agents in particular chlorine bleaches, which are chlorine stable, textile friendly and haulver texts as possible have sufficiently high viscosity and with high Fleckentfemungslitis accordingly reliably prevent the deposition of metal traces on the tissue.
- the invention includes the recognition that the use of buffers such as in particular silicates, carbonates and / or phosphonates and optionally mild chlorine-stable surfactants such as preferably alkyl ether sulfates, amine oxides, alkyl and / or alkenyl oligoglycosides and fatty acid salts to a further improvement of the stabilization against yellowing, cleaning performance and dermatological compatibility.
- buffers such as in particular silicates, carbonates and / or phosphonates
- optionally mild chlorine-stable surfactants such as preferably alkyl ether sulfates, amine oxides, alkyl and / or alkenyl oligoglycosides and fatty acid salts to a further improvement of the stabilization against yellowing, cleaning performance and dermatological compatibility.
- the Mitlel invention finally have a sufficiently high viscosity, so that a dosage by the consumer is easily possible.
- the aqueous bleaching agents may contain hydrogen peroxide, but are preferably chlorine bleaches containing alkali hypochlorite.
- Alkali hypochlorites are lithium, kallum and especially sodium hypochlorite.
- the hypochlorites can be used in amounts of 1.5 to 10, preferably 2 to 8 and in particular 4 to 6 wt .-% - based on the means.
- the polyelectrolytes are used in combination with buffers which are alkali metal and / or alkaline earth metal silicates, carbonates, phosphonates or mixtures thereof.
- the salts aid the sequestering action of the polyelectrolytes and ensure that the formulations have a constant high alkaline pH in the range of 10 to 14.
- Typical examples are sodium silicate, potassium silicate, sodium carbonate, potassium carbonate and from the group of phosphonates, in particular those marketed under the brand Sequion® by Bozetto / IT Aminoxidphosphonklaren.
- the buffers may be used alone or in admixtures in amounts of 0.01 to 5, preferably 0.1 to 2 and in particular 0.5 to 1 wt .-% - based on the means -.
- the bleaching agents obtainable using polyelectrolytes according to the invention generally have a non-aqueous content of from 5 to 35 and preferably from 8 to 15% by weight and are preferably suitable for the treatment of textile fabrics, such as yarns, fabric webs and in particular Textiles. Usually, they are used at low temperatures, ie in the range of cold washing (about 15 to 25 ° C).
- the funds are characterized not only by excellent stain removal, but reliably prevent the deposition of metal traces on the fibers and thus prevent the yellowing.
- the actual use of the means is directed to the removal of stains in the laundry, they are suitable in principle also for other purposes in which hypochlorite solutions are used, for example for the cleaning and disinfection of hard surfaces.
- auxiliaries and additives are further chlorine-stable surfactants or hydrotropes, such as alkyl sulfates, alkyl sulfonates, alkylbenzenesulfonates, xylenesulfonates, sarcosinates, taurides, isethionates, sulfosuccinates, betaines, sugar esters, fatty alcohol polyglycol ethers and fatty acid N-alkylglucamides.
- the sum of all surfactants accounts for at most 10 to 15% by weight of the total amount of ingredients in the formulation.
- the compositions according to the invention may contain alkali metal compounds, preferably sodium hydroxide or potassium hydroxide, with the aid of which the pH of the formulations can be adjusted to an optimum value of 10 to 14, preferably 12.5 to 13.5.
- compositions may contain active-chlorine-stable perfumes, optical brighteners, dyes and pigments in amounts of from 0.01% to 0.5% by weight, based on the compositions.
- active chlorine-resistant include, for example, monocyclic and bicyclic monoterpene alcohols and their esters with acetic or propionic acid (eg isoborneal, dihydroterpene oil, isobornyl acetate, dihydroterpenyl acetate).
- Other fragrances that are suitable for this purpose, for example, in the publications EP-A1 0622451 (Procter & Gamble) as well JP-A Sho 62/89800 Called (Raison).
- the optical brighteners may be, for example, the potassium salt of 4,4'-bis (1,2,3-triazolyl) - (2 -) - stilbene-2,2-sulfonic acid sold under the trademark Phorwite® BHC 766 is sold.
- Suitable color pigments include green chlorophthalocyanines (Pigmosol® Green, Hostaphine® Green) or yellow Solar Yellow BG 300 (Sandoz).
- the resulting product may be decanted or filtered to remove foreign bodies and / or agglomerates.
- the compositions also have a viscosity above 100 mPas - measured at 20 ° C in a Brookfield viscometer - on.
- soiled fabric was treated with various bleach solutions.
- the yellowing of the tissue was determined photometrically, with the initial value of the contaminated tissue as standard (100%).
- the measurements were carried out in a liquor with a metal ion content of 300 ppb Fe and 100 ppb Mn; the water hardness was 1000 ppm CaCl 2 , the content of hydrogen carbonate 0.013 wt .-%.
- the liquor ratio (fabric: water) was 1:50, the exposure time was 30 min at a temperature of 40 ° C.
- Tables 1 and 2 the quantities are by weight.
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Wood Science & Technology (AREA)
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- Health & Medical Sciences (AREA)
- Emergency Medicine (AREA)
- Detergent Compositions (AREA)
Abstract
Description
Die Erfindung betrifft die Verwendung von Polyelektrolyten zur Verminderung der Ablagerung von Schwermetallen auf Textilfasern während der Wäsche mit wäßrigen Bleichmitteln.The invention relates to the use of polyelectrolytes for reducing the deposition of heavy metals on textile fibers during washing with aqueous bleaches.
Während zur Wäsche stark verschmutzter Textilien in vielen Staaten Europas pulverförmige oder flüssige Vollwaschmittel eingesetzt werden, die ihr Leistungsvermögen erst bei höheren Temperaturen erreichen, wird beispielsweise von den Verbrauchern in den USA und Spanien die Kaltwäsche vorgezogen, bei der man neben einem Waschmittel zur Entfernung besonders schwieriger Flecken ein flüssiges Bleichmittel, vorzugsweise auf Hypochloritbasis, zusetzt,While the use of powdered or liquid heavy-duty detergents in high-temperature clothing in heavily polluted textiles can only be achieved at higher temperatures, consumers in the United States and Spain prefer cold-washing, which requires a detergent to remove them Stains add a liquid bleach, preferably hypochlorite based,
Aus dem Stand der Technik sind eine Vielzahl von flüssigen Bleichmitteln bekannt. So wird beispielsweise in der
An Bleichmittel der genannten Art werden vom Verbraucher hohe Anforderungen gestellt: Sie müssen textilverträglich sein, d.h. durch die Behandlung mit der an sich aggressiven Chemikalie Hypochlorit müssen die Fleckes ohne Angriff des Gewebes entfernt werden. Da ein Haulkontakt mit den Bleichmitteln nicht ausgeschlossen ist, müssen die Zubereitungen ferner so dermatologisch verträglich wie nur eben möglich sein. Ein besonderes Problem besteht darin, daß Hypochloritlösungen auch Metalle angreifen und die gelösten Metallspuren auf den Textilfasern während der Wäsche abgelagert werden können, was sich letztendlich in einer Vergilbung des Gewebes widerspiegelt. Mittel des Marktes versuchen zwar diese Redeposition durch die Mitverwendung von Silicaten zu verhindern, in der Praxis erweist sich diese Maßnahme jedoch nicht immer als zufriedenstellend.On bleach of the type mentioned high demands are made by the consumer: they must be textile compatible, i. by treating with the aggressive chemical hypochlorite, the stains must be removed without attacking the tissue. Since Haulkontakt with the bleaching agents is not excluded, the preparations must also be as dermatologically compatible as possible. A particular problem is that hypochlorite solutions also attack metals and the dissolved metal traces can be deposited on the textile fibers during the wash, which is ultimately reflected in a yellowing of the fabric. Although funds from the market try to prevent this redeposition by using silicates, in practice this measure is not always satisfactory.
Demzufolge hat die komplexe Aufgabe der Erfindung darin bestanden, der Vergilbung der Wäsche durch den Einfluß von Schwermetallionen entgegenzuwirken und Sequestrlermittel zur Verfügung zu stellen, die die Herstellung von wäßrigen Bleichmitteln, insbesondere von Chlorbleichlaugen erlauben, welche gleichzeitig chlorstabil, textilschonend und möglichst haulverträglich sind, eine ausreichend hohe Viskosität aufweisen und bei hohem Fleckentfemungsvermögen entsprechend die Ablagerung von Metallspuren auf dem Gewebe zuverlässig verhindern.Accordingly, the complex object of the invention was to counteract the yellowing of the laundry by the influence of heavy metal ions and to provide sequestering agents that allow the production of aqueous bleaching agents, in particular chlorine bleaches, which are chlorine stable, textile friendly and haulverträglich as possible have sufficiently high viscosity and with high Fleckentfemungsvermögen accordingly reliably prevent the deposition of metal traces on the tissue.
Gegenstand der Erfindung ist die Verwendung von Polyelektolylen zur Verminderung der Ablagerung von Schwermetallionen auf Textilfasern während der Wäsche mit wäßrigen Bleichmitteln durch den Einsatz von Polyelektrolyten, die ausgewählt sind aus der Gruppe, die gebildet wird von
- (a) niedermolekularen Dicarbonsäuren,
- (b) niedermolekularen mehrwertigen Hydroxycarbonsäuren,
- (c) Mono- und Copolymeren ungesättigter Monocarbonsäureester, die sich von Monomeren der Formel (II) ableiten,
Kohlenwasserstoffrest mit 1 bis 22 Kohlenstoffatomen und m für Zahlen von 1 bis 10 steht, - (d) Homo- und Copolymeren ungesättigter Monocarbonsäureamide und deren Derivate und/oder
- (e) Copolymeren aus Fumarsäure und Vinylsulfonsäure und/oder Copolymeren aus Acrylsäure und Styrolsulfonsäure.
- (a) low molecular weight dicarboxylic acids,
- (b) low molecular weight polybasic hydroxycarboxylic acids,
- (c) mono- and copolymers of unsaturated monocarboxylic acid esters derived from monomers of formula (II),
Hydrocarbon radical having 1 to 22 carbon atoms and m is a number from 1 to 10, - (d) homo- and copolymers of unsaturated monocarboxamides and their derivatives and / or
- (e) copolymers of fumaric acid and vinylsulfonic acid and / or copolymers of acrylic acid and styrenesulfonic acid.
Überraschenderweise wurde gefunden, daß der Zusatz geringer Mengen Polyelektrolyten zu wäßrigen Bleichmitteln, insbesondere zu Hypochloritlösungen, der Vergilbung der Fasern entgegenwirkt. Die Erfindung schließt die Erkenntnis ein, daß die Mitverwendung von Puffern wie insbesondere Silicaten, Carbonaten und/oder Phosphonaten sowie gegebenenfalls milden, chlorstabilen Tensiden wie vorzugsweise Alkylethersulfaten, Aminoxiden, Alkyl- und/oder Alkenyloligoglykosiden und Fettsäuresalzen zu einer weiteren Verbesserung der Stabilisierung gegen Vergilbung, der Reinigungsleistung und der dermatologischen Verträglichkeit führt. Die erfindungsgemäßen Mitlel weisen schließlich eine ausreichend hohe Viskosität auf, so daß eine Dosierung durch den Verbraucher problemlos möglich ist.Surprisingly, it has been found that the addition of small amounts of polyelectrolytes to aqueous bleaching agents, in particular to hypochlorite solutions, counteracts the yellowing of the fibers. The invention includes the recognition that the use of buffers such as in particular silicates, carbonates and / or phosphonates and optionally mild chlorine-stable surfactants such as preferably alkyl ether sulfates, amine oxides, alkyl and / or alkenyl oligoglycosides and fatty acid salts to a further improvement of the stabilization against yellowing, cleaning performance and dermatological compatibility. The Mitlel invention finally have a sufficiently high viscosity, so that a dosage by the consumer is easily possible.
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(a) Niedermolekulare Dicarbonsäuren. Im einfachsten Fall können als Polyelektrolyte niedermolekulare Dicarbonsäuren eingesetzt werden, die der Formel (I) folgen
- (b) Nledermolekulare mehrwertige Hydroxycarbonsäuren. Typische Beispiele für geeignete mehrwertige Hydroxycarbonsäuren sind Äpfelsäure, Weinsäure und insbesondere Citronensäure. Auch diese Säuren können in Form ihrer Alkali- und/oder Erdalkalimetall-, Ammonium-, Alkylammonium-, Alkanolammonium- oder Glucammoniumsalze eingesetzt werden. Besonders bevorzugt ist der Einsatz von Citronensäure bzw. Natriumcitrat als Polyelektrolyt. (b) leather-molecular polyvalent hydroxycarboxylic acids. Typical examples of suitable polyhydric hydroxycarboxylic acids are malic acid, tartaric acid and especially citric acid. These acids can also be used in the form of their alkali and / or alkaline earth metal, ammonium, alkylammonium, alkanolammonium or glucammonium salts. Particularly preferred is the use of citric acid or sodium citrate as the polyelectrolyte.
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(c) Mono. und Copolymere ungesättigter Monocarbonsäureester. Geeignete Monomere folgen der Formel (II),
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(d) Homo- und Copolymere ungesättigter Dicarbonsäureamide und deren Derivate. Bel der Gruppe dieser Stoffe handelt es sich vorzugsweise um Verbindungen, die entweder durch (Co)Polymerisation der Monomere oder durch polymeranaloge Hydrolyse von Poly(melh)acrylamid oder Poly(meth)acrylnitril hergestellt werden. Die Herstellung eines Polyacrylamids mit einem Molekulargewicht im Bereich von 500 bis 5.000 Dalton unter Verwendung von Thioglycolsäure als Regler und alkalischer Hydrolyse von 60 bis 90 % der Amidgruppen wird beispielsweise in
US 4001161 US 3492240 NL 66/5265 US 4001161 US 3,492,240 NL 66/5265 -
(e) Copolymere aus Fumarsäure und Vinylsulfonsäure sind beispielsweise aus
US 3879288 US 3706717 US 4048066 US 3879288 US 3706717 US 4048066
Die wäßrigen Bleichmittel können Wasserstoffperoxid enthalten, vorzugsweise handelt es sich jedoch um Chlorbleichlaugen mit einem Gehalt an Alkalihypochlorit. Unter Alkalihypochloriten sind Lithium-, Kallum- und Insbesondere Natriumhypochlorit zu verstehen. Die Hypochlorite können in Mengen von 1,5 bis 10, vorzugsweise 2 bis 8 und insbesondere 4 bis 6 Gew.-% - bezogen auf die Mittel - eingesetzt werden.The aqueous bleaching agents may contain hydrogen peroxide, but are preferably chlorine bleaches containing alkali hypochlorite. Alkali hypochlorites are lithium, kallum and especially sodium hypochlorite. The hypochlorites can be used in amounts of 1.5 to 10, preferably 2 to 8 and in particular 4 to 6 wt .-% - based on the means.
In einer bevorzugten Ausführungsform der Erfindung werden die Polyelektrolyte in Kombination mit Puffern eingesetzt, bei denen es sich um Alkali- und/oder Erdalkalisilicate, -carbonate, -phosphonate bzw. deren Mischungen handelt. Die Salze unterstützen die Sequestrierwirkung der Polyelektrolyte und gewährleisten, daß die Zubereitungen ein konstant hoch alkalischen pH-Wert im Bereich von 10 bis 14 aufweisen. Typische Beispiele sind Natriumsilicat, Kaliumsilicat, Natriumcarbonat, Kaliumcarbonat sowie aus der Gruppe der Phosphonate insbesondere die unter der Marke Sequion® von der Firma Bozetto/IT vertriebenen Aminoxidphosphonsäuren. Die Puffer können alleine oder in Abmischungen in Mengen von jeweils 0,01 bis 5, vorzugsweise 0,1 bis 2 und insbesondere 0,5 bis 1 Gew.-% - bezogen auf die Mittel - eingesetzt werden.In a preferred embodiment of the invention, the polyelectrolytes are used in combination with buffers which are alkali metal and / or alkaline earth metal silicates, carbonates, phosphonates or mixtures thereof. The salts aid the sequestering action of the polyelectrolytes and ensure that the formulations have a constant high alkaline pH in the range of 10 to 14. Typical examples are sodium silicate, potassium silicate, sodium carbonate, potassium carbonate and from the group of phosphonates, in particular those marketed under the brand Sequion® by Bozetto / IT Aminoxidphosphonsäuren. The buffers may be used alone or in admixtures in amounts of 0.01 to 5, preferably 0.1 to 2 and in particular 0.5 to 1 wt .-% - based on the means -.
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(a) Alkylethersulfate. Alkylethersulfate stellen bekannte anionische Tenside dar, die durch Sulfatierung von nichtionischen Tensiden vom Typ der Alkylpolyglycolether und nachfolgende Neutralisation erhalten werden. Die im Sinne der erfindungsgemäßen Mittel in Betracht kommenden Alkylethersulfate folgen der Formel (III),
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(b) Aminoxide. Auch Aminoxide stellen bekannte Stoffe dar, die gelegentlich den kationischen, in der Regel jedoch den nichtionischen Tensiden zugerechnet werden. Zu ihrer Herstellung geht man von tertiären Fettaminen aus, die üblicherweise entweder einen langen und zwei kurze oder zwei lange und einen kurzen Alkylrest aufweisen, und oxidiert sie in Gegenwart von Wasserstoffperoxid. Die im Sinne der Erfindung in Betracht kommenden Aminoxide folgen der Formel (IV),
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(c) Alkyl- und/oder Alkenyloligoglykoside. Alkyl- und Alkenyloligoglykoside stellen bekannte nichtionische Tenside dar, die der Formel (V) folgen,
EP-A1 0301298 WO 90/03977 EP-A1 0301298 WO 90/03977 -
(d) Fettsäuresalze. Als weitere Tenside können die erfindungsgemäßen Mittel Fettsäuresalze der Formel (VI) enthalten,
Die unter der erfindungsgemäßen Verwendung von Polyelektrolyten erhältlichen Bleichmittel weisen in der Regel einen nicht-wäßrigen Anteil von 5 bis 35 und vorzugsweise 8 bis 15 Gew.-% auf und eignen sich vorzugsweise für die Behandlung von textilen Flächengebilden, wie beispielsweise Garnen, Stoffbahnen und insbesondere Textilien. Üblicherweise erfolgt ihre Anwendung bei niedrigen Temperaturen, d.h. im Bereich der Kaltwäsche (ca. 15 bis 25°C). Die Mittel zeichnen sich nicht nur durch eine ausgezeichnete Fleckentfernung aus, sondern verhindern zuverlässig die Ablagerung von Metallspuren auf den Fasern und beugen somit auch der Vergilbung vor. Obschon die eigentliche Verwendung der Mittel auf die Entfernung von Flecken bei der Wäsche gerichtet ist, eignen sie sich grundsätzlich auch für andere Zwecke, in denen Hypochloritlösungen Anwendung finden, beispielsweise für die Reinigung und Desinfektion harter Oberflächen.The bleaching agents obtainable using polyelectrolytes according to the invention generally have a non-aqueous content of from 5 to 35 and preferably from 8 to 15% by weight and are preferably suitable for the treatment of textile fabrics, such as yarns, fabric webs and in particular Textiles. Usually, they are used at low temperatures, ie in the range of cold washing (about 15 to 25 ° C). The funds are characterized not only by excellent stain removal, but reliably prevent the deposition of metal traces on the fibers and thus prevent the yellowing. Although the actual use of the means is directed to the removal of stains in the laundry, they are suitable in principle also for other purposes in which hypochlorite solutions are used, for example for the cleaning and disinfection of hard surfaces.
Als weitere Hilfs- und Zusatzstoffe kommen beispielsweise weitere chlorstabile Tenside bzw. Hydrotrope in Betracht, wie etwa Alkylsulfate, Alkylsulfonate, Alkylbenzolsulfonate, Xylolsulfonate, Sarcosinate, Tauride, Isethionate, Sulfosuccinate, Betaine, Zuckerester, Fettalkoholpolyglycolether und Fettsäure-N-alkylglucamide. Vorzugsweise macht die Summe aller Tenside höchstens 10 bis 15 Gew.-% der Gesamtmenge an Inhaltsstoffen in der Rezeptur aus. Die erfindungsgemäßen Mittel können Alkalimetallverbindungen enthalten, vorzugsweise Natriumhydroxid oder Kaliumhydroxid, mit deren Hilfe der pH-Wert der Rezepturen auf einen optimalen Wert von 10 bis 14, vorzugsweise 12,5 bis 13,5 eingestellt werden kann.Examples of further auxiliaries and additives are further chlorine-stable surfactants or hydrotropes, such as alkyl sulfates, alkyl sulfonates, alkylbenzenesulfonates, xylenesulfonates, sarcosinates, taurides, isethionates, sulfosuccinates, betaines, sugar esters, fatty alcohol polyglycol ethers and fatty acid N-alkylglucamides. Preferably, the sum of all surfactants accounts for at most 10 to 15% by weight of the total amount of ingredients in the formulation. The compositions according to the invention may contain alkali metal compounds, preferably sodium hydroxide or potassium hydroxide, with the aid of which the pH of the formulations can be adjusted to an optimum value of 10 to 14, preferably 12.5 to 13.5.
Darüber hinaus können die Mittel aktivchlorstabile Duftstoffe, optische Aufheller, Farbstoffe und Pigmente in Mengen von insgesamt 0,01 bis 0,5 Gew.-% - bezogen auf die Mittel - enthalten. Zu den als aktivchlorbeständig bekannten Duftstoffen zählen beispielsweise monocyclische und bicyclische Monoterpenalkohole sowie deren Ester mit Essig- oder Propionsäure (z.B. Isoborneal, Dihydroterpenöl, Isobornylacetat, Dihydroterpenylacetat). Weitere Duftstoffe, die für diesen Zweck in Betracht kommen, sind beispielsweise in den Druckschriften
Zur Untersuchung der Bleichwirkung wurde verschmutztes Gewebe mit verschiedenen Bleichmittellösungen behandelt. Die Vergilbung des Gewebes wur-de photometrisch bestimmt, wobei der Ausgangswert des verschmutzten Gewebes als Standard (100 %) diente. Die Messungen wurden in einer Flotte mit einem Metallionengehalt von 300 ppb Fe und 100 ppb Mn durchgeführt; die Wasserhärte betrug 1000 ppm CaCl2, der Gehalt an Hydrogencarbonat 0,013 Gew.-%. Das Flottenverhältnis (Gewebe : Wasser) lag bei 1 : 50, die Einwirkzeit betrug 30 min bei einer Temperatur von 40°C. Die Ergebnisse sind in den Tabellen 1 und 2 zusammengefaßt; die Mengenangaben verstehen sich als Gew.-%.
Man erkennt, daß der Zusatz von Polyelektrolyten zu den alkalischen Hypochloritlösungen zu einer deut-lichen Aufhellung des Gewebes führt, die durch den Zusatz von Puffern noch weiter gesteigert werden kann. Demgegenüber ist der Zusatz von Puffern als alleinigen Stabilisatoren im Vergleich zu reinen Hypochloritlösungen gelegentlich eher noch von Nachteil.It can be seen that the addition of polyelectrolytes to the alkaline hypochlorite solutions leads to a significant lightening of the tissue, which can be further increased by the addition of buffers. In contrast, the addition of buffers as sole stabilizers compared to pure hypochlorite solutions occasionally rather disadvantageous.
Claims (11)
- The use of polyelectrolytes for reducing deposition of heavy metal ions on textile fibers during washing with aqueous bleaching agents, characterized in that polyelectrolytes are applied which are selected from the group which is formed with(a) low molecular weight dicarboxylic acids,(b) low molecular weight multivalent hydroxycarboxylic acids,(c) mono- and co-polymers of unsaturated monocarboxylic acid
esters, which are derived from monomers of formula (II),(d) homo- and co-polymers of unsaturated monocarboxylic acid amides and their derivatives and/or(e) copolymers of fumaric acid and vinyl-sulfonic acid and/or copolymers of acrylic acid and styrene-sulfonic acid. - The use according to claim 1, characterized in that of low molecular weight dicarboxylic acids of formula (I) are applied as polyelectrolytes of group (a),
- The use according to claim 1, characterized in that citric acid and/or sodium citrate are applied as polyelectrolytes of group (b).
- The use according to claim 1, characterized in that homo- and co-polymers of polyacrylamide and/or polymethacrylamide are applied as polyelectrolytes of group (d).
- The use according to claim 1, characterized in that polyelectrolytes are applied which are selected from the group which is formed from poly-(N,N-bis-carboxymethylene-acrylamides), copolymers of fumaric acid and vinyl-sulfonic acid, polymers of 3-acrylamido-3-methylpropane-sulfonic acid, copolymers of acrylic acid and styrene sulfonic acid, copolymers of acrylic acid with 2-hydroxyethylmethacrylatemonophosphate, homo- and co-polymers of 3-acrylamido-3-methylbutyltrimethylammonium chloride, copolymers of diallylglycinamide hydrochloride and acrylic acid, copolymers of dimethylallyl ammonium chloride with acrylamide and/or polyethylene- and/or polypropyleneimines.
- The use according to claim 1 or any of claims 4 or 5, characterized in that polyelectrolytes having a molecular weight in the range from 300 to 5,000,000 are applied.
- The use according to any of claims 1 to 6, characterized in that the polyelectrolytes are applied in amounts from 0.01 to 5% by weight - based on the aqueous bleaching agents.
- The use according to any of claims 1 to 7, characterized in that the polyelectrolytes are applied in bleaching agents containing hypochlorite.
- The use according to any of claims 1 to 8, characterized in that the polyelectrolytes are applied together with buffers, which are selected from the group which is formed from alkaline and/or earth alkaline silicates, carbonates, and/or phosphonates.
- The use according to any of claims 1 to 9, characterized in that the polyelectrolytes are applied together with chlorine-resisting surfactants which are selected from the group which is formed from alkylether sulfates, aminoxides, alkyl- and/or alkenyl-oligoglycosides and/or fatty acid salts.
- The use according to any of claims 1 to 10, characterized in that the polyelectrolytes are applied together with chlorine-resisting fragrances.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19730650 | 1997-07-17 | ||
DE19730650A DE19730650C2 (en) | 1997-07-17 | 1997-07-17 | Process for avoiding the deposition of heavy metal ions on textile fibers |
PCT/EP1998/004243 WO1999003960A2 (en) | 1997-07-17 | 1998-07-08 | Use of polyelectrolytes as sequestering agents |
Publications (2)
Publication Number | Publication Date |
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EP0998547A2 EP0998547A2 (en) | 2000-05-10 |
EP0998547B1 true EP0998547B1 (en) | 2011-08-24 |
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EP98940181A Expired - Lifetime EP0998547B1 (en) | 1997-07-17 | 1998-07-08 | Use of polyelectrolytes as sequestering agents |
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EP (1) | EP0998547B1 (en) |
AT (1) | ATE521688T1 (en) |
DE (1) | DE19730650C2 (en) |
ES (1) | ES2370113T3 (en) |
HU (1) | HUP0002896A3 (en) |
PL (1) | PL338184A1 (en) |
SK (1) | SK552000A3 (en) |
WO (1) | WO1999003960A2 (en) |
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US6537960B1 (en) * | 2001-08-27 | 2003-03-25 | Ecolab Inc. | Surfactant blend for use in highly alkaline compositions |
DE102011120675B4 (en) | 2011-12-02 | 2023-09-28 | Pinion Gmbh | Gear unit |
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US3706717A (en) | 1970-07-01 | 1972-12-19 | American Cyanamid Co | Copolymers of fumaric acid and allyl sulfonic acid |
US3700599A (en) * | 1970-09-25 | 1972-10-24 | Economics Lab | Composition for mechanically cleaning hard surfaces |
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GB1411463A (en) * | 1973-03-01 | 1975-10-22 | Citrex Sa | Detergent compositions |
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US4048066A (en) | 1976-11-17 | 1977-09-13 | Chemed Corporation | Method of inhibiting scale |
DE2903980C2 (en) * | 1979-02-02 | 1986-08-07 | Henkel KGaA, 4000 Düsseldorf | Agents containing active chlorine |
EP0062858A1 (en) * | 1981-04-03 | 1982-10-20 | Diversey Corporation | Low temperature circulation cleaner |
US4474677A (en) * | 1981-11-06 | 1984-10-02 | Lever Brothers Company | Colored aqueous alkalimetal hypochlorite compositions |
GB8325541D0 (en) | 1983-09-23 | 1983-10-26 | Unilever Plc | Liquid thickened bleaching composition |
GB8332271D0 (en) | 1983-12-02 | 1984-01-11 | Unilever Plc | Bleaching composition |
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CA1334389C (en) * | 1986-03-26 | 1995-02-14 | Ernest H. Brumbaugh | Machine dishwasher water spot control composition |
GB8630845D0 (en) | 1986-12-24 | 1987-02-04 | Ici Plc | Bleaching compositions |
DE3810107A1 (en) * | 1987-04-03 | 1988-10-13 | Sandoz Ag | Phosphate-free or low-phosphate liquid composition for mechanical dishwashing |
GB9005873D0 (en) | 1990-03-15 | 1990-05-09 | Unilever Plc | Bleaching composition |
US5244593A (en) * | 1992-01-10 | 1993-09-14 | The Procter & Gamble Company | Colorless detergent compositions with enhanced stability |
US5419847A (en) * | 1993-05-13 | 1995-05-30 | The Procter & Gamble Company | Translucent, isotropic aqueous liquid bleach composition |
DE4333100C1 (en) | 1993-09-29 | 1994-10-06 | Henkel Kgaa | Bleaching and disinfecting compositions |
US5451644A (en) * | 1994-01-14 | 1995-09-19 | Rohm And Haas Company | Aqueous process for preparing water soluble polymers of monoethylenically unsaturated dicarboxylic acids |
DE19512898A1 (en) * | 1995-04-06 | 1996-10-10 | Bayer Ag | Polymers with recurring succinyl units which also include imino:di:succinate units |
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DE19700799C2 (en) | 1997-01-13 | 1999-02-04 | Henkel Kgaa | Aqueous textile bleach |
DE19731881C1 (en) * | 1997-07-24 | 1998-10-22 | Henkel Kgaa | Electrolyte mixture, used to reduce metal deposition in aqueous hypochlorite bleaches |
-
1997
- 1997-07-17 DE DE19730650A patent/DE19730650C2/en not_active Expired - Fee Related
-
1998
- 1998-07-08 WO PCT/EP1998/004243 patent/WO1999003960A2/en not_active Application Discontinuation
- 1998-07-08 PL PL98338184A patent/PL338184A1/en unknown
- 1998-07-08 EP EP98940181A patent/EP0998547B1/en not_active Expired - Lifetime
- 1998-07-08 ES ES98940181T patent/ES2370113T3/en not_active Expired - Lifetime
- 1998-07-08 SK SK55-2000A patent/SK552000A3/en unknown
- 1998-07-08 HU HU0002896A patent/HUP0002896A3/en unknown
- 1998-07-08 AT AT98940181T patent/ATE521688T1/en active
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ATE521688T1 (en) | 2011-09-15 |
SK552000A3 (en) | 2000-07-11 |
WO1999003960A3 (en) | 1999-04-08 |
DE19730650C2 (en) | 1999-12-02 |
WO1999003960A2 (en) | 1999-01-28 |
DE19730650A1 (en) | 1999-01-28 |
ES2370113T3 (en) | 2011-12-12 |
HUP0002896A2 (en) | 2001-01-29 |
HUP0002896A3 (en) | 2001-11-28 |
EP0998547A2 (en) | 2000-05-10 |
PL338184A1 (en) | 2000-10-09 |
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