EP3116984B1 - Improved surfactant mixture having an optimized ethoxylation degree - Google Patents

Improved surfactant mixture having an optimized ethoxylation degree Download PDF

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Publication number
EP3116984B1
EP3116984B1 EP15708228.0A EP15708228A EP3116984B1 EP 3116984 B1 EP3116984 B1 EP 3116984B1 EP 15708228 A EP15708228 A EP 15708228A EP 3116984 B1 EP3116984 B1 EP 3116984B1
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EP
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Prior art keywords
fatty alcohol
cleaning
washing
acid
agents
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EP15708228.0A
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German (de)
French (fr)
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EP3116984A1 (en
Inventor
Inga Kerstin Vockenroth
Andreas Buhl
Eva-Maria Wikker
Nicole BODE
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Henkel AG and Co KGaA
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Henkel AG and Co KGaA
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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
    • C11D1/83—Mixtures of non-ionic with anionic compounds
    • 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
    • C11D1/72—Ethers of polyoxyalkylene glycols
    • C11D2111/12—

Definitions

  • the present invention relates to a liquid washing, cleaning or pretreatment agent for textiles with a mixture of anionic surfactants and nonionic surfactants.
  • the invention also relates to the use of such a liquid washing, cleaning or pretreatment agent for washing, cleaning or pretreating textiles.
  • pretreatment of the respective item of laundry is often necessary.
  • the process of pre-cleaning is often viewed as a nuisance by the consumer.
  • another pretreatment agent must be purchased, so that this leads to an increase in costs.
  • EP 0 916 717 A1 describes an agent for cleaning hard surfaces which comprises nonionic surfactants with linear, aliphatic hydrocarbon radicals with an average of 4 to 18 carbon atoms or with an average of 2 to 14 carbon atoms. This agent is characterized by a very good cleaning effect on hard surfaces, such as floors.
  • the object of the present invention is therefore to provide a liquid detergent, cleaning agent or pretreatment agent which, even at washing temperatures of 30 ° C. or 40 ° C., has an improved cleaning performance compared to the prior art with regard to greasy soiling.
  • the object on which the present invention is based is achieved by a liquid washing, cleaning or pretreatment agent for textiles with a mixture of anionic surfactants and nonionic surfactants, which is characterized in that the nonionic surfactants include at least one fatty alcohol alkoxylate with a branched alkyl radical have a chain length of 9 to 15 carbon atoms and a degree of alkoxylation of 3 to 9 alkoxyl groups per mole of fatty alcohol, the fatty alcohol alkoxylate having two or more terminal and / or central branches with two or more branch points in the alkyl radical of the molecule and the weight ratio of the anionic surfactants, which are not soaps, to branched fatty alcohol alkoxylate is in the range from 3: 1 to 2: 1 and, based on the total amount of detergents, cleaning agents or pretreatment agents, contains branched fatty alcohol in a total amount of 3 to 10% by weight .
  • the nonionic surfactants include at least one fatty alcohol alkoxylate with
  • fatty alcohol alkoxylates with a branched alkyl radical have better cleaning performance, in particular at washing temperatures of 40 ° C. or 30 ° C. or less, with regard to greasy stains than comparable linear fatty alcohol alkoxylates.
  • a high degree of alkoxylation leads to improved cleaning performance.
  • the degree of alkoxylation is therefore preferably 9.
  • a mixture of anionic surfactants and nonionic surfactants, in which the nonionic surfactants comprise at least one fatty alcohol ethoxylate, the degree of ethoxylation in particular is 9, can remove fatty soiling from textiles particularly well.
  • a nonionic surfactant according to the invention When using a nonionic surfactant according to the invention with a fatty alcohol ethoxylate with a branched alkyl radical with a chain length of 9 to 15 carbon atoms, preferably 12 to 14 carbon atoms and particularly preferably 13 carbon atoms, and a degree of alkoxylation of 3 to 9, in particular of 9 alkoxyl groups per mole of fatty alcohol, a liquid detergent, cleaning agent or pretreatment agent is obtained which, in addition to good washing performance at low temperatures, also has high phase stability. There is no phase separation in the detergent, cleaning agent or pretreatment agent obtained. It is therefore storage-stable.
  • the fatty alcohol radical has 12 to 14 and in particular 13 carbon atoms.
  • These fatty alcohol alkoxylates can be of natural origin, for example from coconut, palm or tallow fat. It is particularly preferably a branched isotridecanol.
  • the fatty alcohol alkoxylate is one with a branched alkyl radical.
  • the fatty alcohol alkoxylate has two or more terminal and / or central branches.
  • HLB hydrophilic lipophilic balance
  • the weight ratio of anionic surfactants to branched fatty alcohol alkoxylate is in a range from 3: 1 to 2: 1.
  • a range from 2: 1 to 1: 1 can also be preferred.
  • the ratio of anionic surfactants to the branched fatty alcohol acoxylate according to the invention is particularly preferably 2: 1.
  • soaps are not counted among the anionic surfactants, so that these are anionic surfactants which are not soaps.
  • the weight ratio of anionic surfactant, which is not soap, to fatty alcohol alkoxylate is thus given.
  • the total amount of branched fatty alcohol alkoxylate in the liquid detergent, cleaning agent or pretreatment agent according to the invention is in the range from 3 to 10% by weight, in particular in the range from 5 to 8% by weight, based on the total amount of washing, cleaning or cleaning agent Pretreatment agent.
  • the detergent, cleaning agent or pretreatment agent can contain other nonionic surfactants.
  • these include, for example, fatty alcohols with more than 12 EO. Examples are tallow fatty alcohol with 14 EO, 25 EO, 30 EO or 40 EO.
  • Further suitable nonionic surfactants include alkoxylated fatty acid alkyl esters, fatty acid amides, alkyl polyglucosides, alkoxylated fatty acid amides, polyhydroxy fatty acid amides, N-methylglucamides, alkylphenol polyglycol ethers, amine oxides and mixtures thereof.
  • the liquid washing, cleaning or pretreatment agent comprises anionic surfactants.
  • the agent can comprise an anionic surfactant or mixtures of different anionic surfactants.
  • anionic surfactant sulfonates, sulfates, soaps, alkyl phosphates, anionic silicone surfactants and mixtures thereof are preferably used.
  • Surfactants of the sulfonate type are preferably C 9-13 alkylbenzenesulfonates, olefin sulfonates, ie mixtures of alkene and hydroxyalkane sulfonates and disulfonates, such as those obtained, for example, from C 12-18 monoolefins with terminal or internal double bonds by sulfonation with gaseous sulfur trioxide and subsequent alkaline or acidic hydrolysis of the sulfonation products is possible.
  • esters of ⁇ -sulfo fatty acids for example the ⁇ -sulfonated methyl esters of hydrogenated coconut, palm kernel or tallow fatty acids.
  • the alk (en) yl sulfates are the alkali and especially the sodium salts of the sulfuric acid half esters of the C 12 -C 18 fatty alcohols, for example from coconut fatty alcohol, tallow fatty alcohol, lauryl, myristyl, cetyl or stearyl alcohol or the C 10 -C 20 oxo alcohols and those half esters of secondary alcohols of these chain lengths are preferred.
  • the C 12 -C 16 -alkyl sulfates and C 12 -C 15 -alkyl sulfates and also C 14 -C 15 -alkyl sulfates are preferred.
  • 2,3-Alkyl sulfates are also suitable anionic surfactants.
  • the sulfuric acid monoesters of the straight-chain or branched C 7-21 alcohols ethoxylated with 1 to 6 moles of ethylene oxide such as 2-methyl-branched C 9-11 alcohols with an average of 3.5 moles of ethylene oxide (EO) or C 12-18 - Fatty alcohols with 1 to 4 EO are suitable.
  • soaps are the water-soluble sodium or potassium salts of saturated and unsaturated fatty acids with 10 to 20 carbon atoms, the resin acids of rosin (yellow resin soaps) and naphthenic acids, which are used as solid or semi-solid mixtures mainly for washing and cleaning purposes.
  • Sodium or potassium salts of saturated and unsaturated fatty acids with 10 to 20 carbon atoms, in particular with 12 to 18 carbon atoms, are preferred soaps according to the invention.
  • Particularly preferred agents according to the invention are characterized in that they - based on their weight - 0.1 to 15.0% by weight, particularly preferably 1.0 to 10.0% by weight, very particularly preferably 3.0 to Contains 8.0% by weight of soap (s).
  • Saturated and unsaturated fatty acid soaps such as the salts of lauric acid, myristic acid, palmitic acid, stearic acid, (hydrogenated) erucic acid and behenic acid and, in particular, soap mixtures derived from natural fatty acids, for example coconut, palm kernel, olive oil or tallow fatty acids, are suitable.
  • the anionic surfactants and the soaps can be in the form of their sodium, potassium, magnesium or ammonium salts.
  • the anionic surfactants are preferably in the form of their sodium salts.
  • Further preferred counterions for the anionic surfactants are also the protonated forms of choline, triethylamine, monoethanolamine or methylethylamine.
  • the detergent, cleaning agent or pretreatment agent can comprise further cationic and / or zwitterionic surfactants.
  • the detergent, cleaning agent or pretreatment agent preferably contains nonionic and anionic surfactants.
  • Cationic and / or zwitterionic surfactants optionally present are described in detail in the literature and are therefore sufficiently known to the person skilled in the art.
  • the detergent, cleaning agent or pretreatment agent can contain, in addition to the surfactants, further ingredients which further improve the application-related and / or aesthetic properties of the washing agent, cleaning agent or pretreatment agent.
  • the detergent, cleaning agent or pretreatment agent preferably additionally contains one or more substances from the group of builders, bleaches, bleach catalysts, bleach activators, enzymes, electrolytes, non-aqueous solvents, pH adjusters, perfume compositions, perfume carriers, fluorescent agents, dyes , Hydrotopes, foam inhibitors, silicone oils, soil release polymers, graying inhibitors, anti-creep agents, anti-crease agents, dye transfer inhibitors, other antimicrobial agents, germicides, fungicides, antioxidants, preservatives, corrosion inhibitors, antistatic and swelling agents, anti-slip agents, anti-slip agents, anti-slip agents, anti-slip agents, anti-slip agents, anti-slip agents, anti-slip agents, anti-slip agents, anti-slip agents, anti-slip agents, anti-slip agents
  • Particularly preferred additional ingredients are builders, enzymes, electrolytes, non-aqueous solvents, pH adjusters, perfume compositions, fluorescent agents, dyes, hydrotopes, foam inhibitors, soil release polymers, graying inhibitors, color transfer inhibitors, plasticizing components, UV absorbers and mixtures thereof.
  • Builders that may be contained in the detergent, cleaning agent or pretreatment agent include, in particular, silicates, aluminum silicates (especially zeolites), carbonates, salts of organic di- and polycarboxylic acids and mixtures of these substances.
  • Organic builders which can be present in the detergent, cleaning agent or pretreatment agent are, for example, the polycarboxylic acids which can be used in the form of their sodium salts, polycarboxylic acids being understood as meaning those carboxylic acids which carry more than one acid function.
  • these are citric acid, adipic acid, succinic acid, glutaric acid, malic acid, tartaric acid, maleic acid, fumaric acid, sugar acids, aminocarboxylic acids, nitrilotriacetic acid (NTA), methylglycinediacetic acid (MGDA) and their derivatives and mixtures of these.
  • Preferred salts are the salts of Polycarboxylic acids such as citric acid, adipic acid, succinic acid, glutaric acid, tartaric acid, sugar acids and mixtures of these.
  • Polymeric polycarboxylates are also suitable as builders. These are, for example, the alkali metal salts of polyacrylic acid or polymethacrylic acid, for example those with a relative molecular weight of 600 to 750,000 g / mol.
  • Suitable polymers are in particular polyacrylates, which preferably have a molecular weight of 1,000 to 15,000 g / mol. Because of their superior solubility, the short-chain polyacrylates from this group, which have molar masses from 1,000 to 10,000 g / mol, and particularly preferably from 1,000 to 5,000 g / mol, can in turn be preferred.
  • copolymeric polycarboxylates in particular those of acrylic acid with methacrylic acid and acrylic acid or methacrylic acid with maleic acid.
  • the polymers can also contain allylsulfonic acids, such as allyloxybenzenesulfonic acid and methallylsulfonic acid, as monomers.
  • soluble builders such as citric acid, or acrylic polymers with a molar mass of 1,000 to 5,000 g / mol in the liquid detergents or cleaning agents.
  • the detergent, cleaning agent or pretreatment agent according to the invention preferably has a flow limit.
  • the flow limit describes the smallest stress (force per area) above which a plastic material behaves rheologically like a liquid. It is therefore given in Pascal (Pa).
  • the flow limit of the agent according to the invention is in particular at 25 ° C. in the range from 0.1 to 1.0 Pa, preferably in the range from 0.2 to 0.9 Pa, in particular in the range from 0.3 to 0.8 Pa.
  • the yield point is determined by measurement with a rheometer, in particular with an AR 1000-N rheometer from Texas Instruments, at a temperature of 25.degree.
  • the rheometer AR 1000-N is an absolute measuring rheometer.
  • the measured values output by the AR 1000-N rheometer are also corrected with appropriate correction factors depending on the measuring geometries used, so that the AR 1000-N rheometer used determines reliable, absolute measured values that are independent of the measuring geometry.
  • a washing, cleaning or pretreatment agent according to the invention can contain, as an additional ingredient, especially if it has a flow limit, dispersed particles whose diameter along their greatest spatial extent is preferably 1 to 2000 ⁇ m.
  • particles can be capsules, abrasives and powders, Granules or compounds of compounds that are insoluble in the detergent, cleaning agent or pretreatment agent, capsules being preferred.
  • capsule is understood to mean aggregates with a core-shell structure on the one hand and aggregates with a matrix on the other.
  • Core-shell capsules contain at least one solid or liquid core which is enclosed by at least one continuous shell, in particular a shell made of polymer (s).
  • the capsules can contain, for example, optical brighteners, surfactants, complexing agents, bleaching agents, bleach activators, dyes and fragrances, antioxidants, builders, enzymes, enzyme stabilizers, antimicrobial agents, graying inhibitors, anti-redeposition agents, pH adjusters, electrolytes, detergency boosters, vitamins, proteins , Foam inhibitors and UV absorbers.
  • the fillings of the capsules can be solids or liquids in the form of solutions or emulsions or suspensions.
  • the capsules can have any shape within the scope of the production process, but they are preferably approximately spherical. Their diameter along their greatest spatial extent can be between 1 ⁇ m and 2000 ⁇ m, depending on the components contained in their interior and the application.
  • particles which do not have a core-shell structure, but in which the active ingredient is distributed in a matrix made of a matrix-forming material. Such particles are also referred to as “matrix particles”.
  • the matrix formation takes place, for example, via gelation, polyanion-polycation interactions or polyelectrolyte-metal ion interactions and is well known in the prior art, as is the production of particles with these matrix-forming materials.
  • An exemplary matrix-forming material is alginate.
  • an aqueous alginate solution which also contains the active ingredient or ingredients to be included, is dripped and then hardened in a precipitation bath containing Ca 2+ ions or Al 3+ ions.
  • a precipitation bath containing Ca 2+ ions or Al 3+ ions.
  • other matrix-forming materials can be used instead of alginate.
  • the capsules can be dispersed stably in the liquid detergents, cleaning agents or pretreatment agents.
  • Stable means that the detergents, cleaning agents or pretreatment agents are used Room temperature are stable for a period of at least 4 weeks and preferably for at least 6 weeks without the particles creaming or sedimenting in the agent.
  • the active ingredients are usually released from the capsules by destroying the shell or the matrix as a result of mechanical, thermal, chemical or enzymatic action.
  • liquid washing, cleaning or pretreatment agents contain capsules in which one or more fragrances are contained.
  • the detergents, cleaning agents or pretreatment agents according to the invention are liquid and preferably contain water as the main solvent.
  • non-aqueous solvents can be added to the detergent, cleaning agent or pretreatment agent.
  • Suitable non-aqueous solvents include mono- or polyhydric alcohols, alkanolamines or glycol ethers, in such a concentration range that they are miscible with water.
  • the solvents are preferably selected from ethanol, n-propanol, i-propanol, butanols, glycol, propanediol, butanediol, methylpropanediol, glycerol, diglycol, propyl diglycol, butyl diglycol, hexylene glycol, ethylene glycol methyl ether, ethylene glycol ethyl ether, ethylene glycol ether, ethylene glycol propyl ether, Diethylene glycol ethyl ether, propylene glycol methyl ether, propylene glycol ethyl ether, propylene glycol propyl ether, dipropylene glycol monomethyl ether, dipropylene glycol monoethyl ether, methoxytriglycol, ethoxytriglycol, butoxytriglycol, 1-butoxyethoxy-2-propanol, solvents of these n-butoxyethoxy-2-propan
  • the liquid washing, cleaning or pretreatment agent can furthermore contain an enzyme or a mixture of enzymes.
  • enzymes from the class of hydrolases such as proteases, (poly) esterases, lipases, amylases, glycosyl hydrolases, hemicellulases, pectate lyase, xyloglucanase, cutinases, ⁇ -glucanases, oxidases, peroxidases, mannanases, perhydrolases, oxireductases and / or laccases are particularly suitable.
  • the amount of enzyme or enzymes is preferably 0.01 to 10% by weight, preferably 0.12 to about 3% by weight, based on the total detergent, cleaning agent or pretreatment agent.
  • the enzymes are preferably used as liquid enzyme formulation (s).
  • a washing, cleaning or pretreatment agent according to the invention is produced by means of customary and known methods and processes.
  • the constituents of the detergents, cleaning agents or pretreatment agents can simply be mixed in stirred kettles water, non-aqueous solvent, acidic components such as alkylarylsulfonic acid, citric acid, boric acid or phosphonic acid, fatty alcohol ether sulfates, if any, and the nonionic surfactant according to the invention are expediently initially introduced.
  • the fatty acid if present, is then added and the fatty acid content is saponified at 50 to 60 ° C.
  • the other constituents are then added, preferably in portions.
  • the present invention relates to the use of a liquid washing, cleaning or pretreatment agent for washing, cleaning and / or pretreating textiles.
  • Textiles in the context of the present invention are in particular flat textile structures such as items of clothing, bath or laundry textiles. These can include natural and / or synthetic fibers such as silk, linen, cotton, polyester, polyamide or acetate fibers. The fibers can be treated or untreated. It also includes such textile fabrics that are made of woven or non-woven materials, such as nonwovens.
  • the information is given in% by weight of the active substance.
  • the fatty alcohol alkoxylates were obtained from Sasol Germany GmbH, Hamburg (Germany).
  • Soiling 10D and 20D were purchased from WFK, Cleaning Technology Institute, Krefeld (Germany).
  • the soiling CS61 and CS62 originate from CFT, Center for Testmaterials BV, Vloadingen (Netherlands).
  • the greasy soiling was washed in a standardized miniaturized washing test, then rinsed and dried.
  • the remission value was then measured spectrophotometrically with a Minolta CR400-1 camera.
  • the washing temperature was 25 ° C. and the washing time was 1 hour.
  • the amount of liquor was 50 ml, the dosage of the different compositions of detergents, cleaning agents or pretreatment agents was 0.21 g in each case.
  • the spectrophotometric determination of the reflectance value was carried out on 5 samples in each case. In the following table 3 the results are shown as the mean value of the 5-fold determination for the individual soiling as well as their sum:
  • a liquid washing, cleaning or pretreatment agent according to the invention which comprises a fatty alcohol ethoxylate with a branched alkyl radical can achieve a better cleaning result than with linear fatty alcohol alkoxylates.
  • the branched fatty alcohol ethoxylate with 9 ethoxyl groups / mole fatty alcohol (E2) shows a very good cleaning performance both with the only greasy stains CS61 and CS62, as well as with the greasy and pigmented stains 10D and 20D.
  • branched alkyl chains basically have a better cleaning performance than linear alkyl chains.
  • a high degree of alkoxylation, in particular a degree of ethoxylation surprisingly ensured particularly good cleaning.

Description

Die vorliegende Erfindung betrifft ein flüssiges Wasch-, Reinigungs- oder Vorbehandlungsmittel für Textilien mit einem Gemisch von anionischen Tensiden und nichtionischen Tensiden. Weiterhin betrifft die Erfindung die Verwendung eines solchen flüssigen Wasch-, Reinigungs- oder Vorbehandlungsmittels zum Waschen, Reinigungen oder Vorbehandeln von Textilien.The present invention relates to a liquid washing, cleaning or pretreatment agent for textiles with a mixture of anionic surfactants and nonionic surfactants. The invention also relates to the use of such a liquid washing, cleaning or pretreatment agent for washing, cleaning or pretreating textiles.

Um stark verschmutzte Wäsche von Fettanschmutzungen zu reinigen, sind häufig hohe Temperaturen von 60 °C oder mehr erforderlich. Während solche Temperaturen für die Reinigung von Tischwäsche oder ähnlich strapazierfähigen Materialien möglich sind, werden insbesondere Bekleidungsstücke häufig aus Materialien hergestellt, die lediglich bei einer Temperatur von etwa 30 °C oder 40 °C gewaschen werden können. Auch im Sport weit verbreitete Funktionswäsche kann nur bei entsprechend geringen Temperaturen gereinigt werden. Im Hinblick auf eine grundsätzlich angestrebte Energieersparnis werden auch solche Wäschestücke, die bei höheren Temperaturen gewaschen werden könnten, häufig bei einer geringen Temperatur von 30 °C oder 40 °C gewaschen. Die Leistung von Waschmitteln fetthaltige Anschmutzungen zu entfernen, nimmt jedoch bei Erniedrigung der Waschtemperaturen ab.In order to remove grease soiling from heavily soiled laundry, high temperatures of 60 ° C or more are often required. While such temperatures are possible for cleaning table linen or similar hard-wearing materials, items of clothing in particular are often made from materials that can only be washed at a temperature of around 30 ° C or 40 ° C. Functional underwear, which is widely used in sports, can only be cleaned at correspondingly low temperatures. With a view to a fundamentally desired energy saving, items of laundry that could be washed at higher temperatures are often washed at a low temperature of 30 ° C or 40 ° C. The performance of detergents in removing greasy soiling, however, decreases when the washing temperatures are lowered.

Um eine vollständige Entfernung von fetthaltigen Anschmutzungen bei geringen Waschtemperaturen zu ermöglichen, ist häufig eine Vorbehandlung des jeweiligen Wäschestücks notwendig. Der Vorgang der Vorreinigung wird vom Verbraucher häufig als störend angesehen. Zudem muss neben dem eigentlichen Wasch- oder Reinigungsmittel ein weiteres Vorbehandlungsmittel gekauft werden, so dass es hierüber zu einer Kostensteigerung kommt.In order to enable the complete removal of greasy soiling at low washing temperatures, a pretreatment of the respective item of laundry is often necessary. The process of pre-cleaning is often viewed as a nuisance by the consumer. In addition to the actual detergent or cleaning agent, another pretreatment agent must be purchased, so that this leads to an increase in costs.

Um die Waschkraft von Reinigungsmitteln auch bei geringer Temperatur von 30 °C oder 40 °C zu erhöhen, schlägt WO 2011/117079 A1 den Einsatz von flüssigen, hydrophoben Verbindungen in Kombination mit ungesättigten Fettsäureseifen vor. In EP 0 916 717 A1 wird zum Reinigen von harten Oberflächen ein Mittel beschrieben, welches nichtionische Tenside mit linearen, aliphatischen Kohlenwasserstoffresten mit durchschnittlich 4 bis 18 Kohlenstoffatomen beziehungsweise mit durchschnittlich 2 bis 14 Kohlenstoffatomen umfasst. Dieses Mittel zeichnet sich durch eine sehr gute Reinigungswirkung auf harten Oberflächen, wie beispielsweise Fußböden aus.In order to increase the washing power of cleaning agents even at low temperatures of 30 ° C or 40 ° C, suggests WO 2011/117079 A1 suggest the use of liquid, hydrophobic compounds in combination with unsaturated fatty acid soaps. In EP 0 916 717 A1 describes an agent for cleaning hard surfaces which comprises nonionic surfactants with linear, aliphatic hydrocarbon radicals with an average of 4 to 18 carbon atoms or with an average of 2 to 14 carbon atoms. This agent is characterized by a very good cleaning effect on hard surfaces, such as floors.

In der Produktbroschüre "Marlipal 013 Isotridecanol ethoxylates" des Herstellers Sasol wird offenbart, dass das verzweigte C13-Fettalkoholethoxylat, das unter dieser Bezeichnung vertrieben wird, zum Einsatz in Waschmitteln geeignet ist und diese auch bei Waschtemperaturen von 30°C eine gute Reinigungsleistung aufweisen.The product brochure "Marlipal 013 Isotridecanol ethoxylates" from the manufacturer Sasol discloses that the branched C13 fatty alcohol ethoxylate sold under this name is suitable for use in detergents and these have good cleaning performance even at washing temperatures of 30 ° C.

Es besteht daher Bedarf an Wasch-, Reinigungs- oder Vorbehandlungsmitteln, welche auch bei Waschtemperaturen von 40 °C oder weniger, insbesondere von 30 °C oder weniger eine ausreichende Reinigungsleistung aufweisen, um fetthaltige Anschmutzungen von Textilien zu entfernen. Die Aufgabe der vorliegenden Erfindung besteht daher darin, ein flüssiges Wasch-, Reinigungs- oder Vorbehandlungsmittel zur Verfügung zu stellen, welches auch bei Waschtemperaturen von 30 °C oder 40 °C eine gegenüber dem Stand der Technik verbesserte Reinigungsleistung im Hinblick auf fetthaltige Anschmutzungen aufweist.There is therefore a need for detergents, cleaning agents or pretreatment agents which, even at washing temperatures of 40 ° C. or less, in particular 30 ° C. or less, have sufficient cleaning performance to remove greasy soiling from textiles. The object of the present invention is therefore to provide a liquid detergent, cleaning agent or pretreatment agent which, even at washing temperatures of 30 ° C. or 40 ° C., has an improved cleaning performance compared to the prior art with regard to greasy soiling.

In einer ersten Ausführungsform wird die der vorliegenden Erfindung zugrundeliegende Aufgabe gelöst durch ein flüssiges Wasch-, Reinigungs- oder Vorbehandlungsmittel für Textilien mit einem Gemisch von anionischen Tensiden und nichtionischen Tensiden, das dadurch gekennzeichnet ist, dass die nichtionischen Tenside wenigstens ein Fettalkoholalkoxylat mit einem verzweigten Alkylrest einer Kettenlänge von 9 bis 15 C-Atomen und einem Alkoxylierungsgrad von 3 bis 9 Alkoxylgruppen pro Mol Fettalkohol aufweisen, wobei das Fettalkoholalkoxylat zwei oder mehr endständige und/oder mittige Verzweigungen mit zwei oder mehr Verzweigungspunkten im Alkylrest des Moleküls aufweist und wobei das Gewichtsverhältnis von den anionischen Tensiden, die keine Seifen sind, zu verzweigtem Fettalkoholalkoxylat im Bereich von 3:1 bis 2:1 liegt und bezogen auf die Gesamtmenge an Wasch-, Reinigungs- oder Vorbehandlungsmittel verzweigter Fettalkohol in einer Gesamtmenge von 3 bis 10 Gew.-% enthalten ist.In a first embodiment, the object on which the present invention is based is achieved by a liquid washing, cleaning or pretreatment agent for textiles with a mixture of anionic surfactants and nonionic surfactants, which is characterized in that the nonionic surfactants include at least one fatty alcohol alkoxylate with a branched alkyl radical have a chain length of 9 to 15 carbon atoms and a degree of alkoxylation of 3 to 9 alkoxyl groups per mole of fatty alcohol, the fatty alcohol alkoxylate having two or more terminal and / or central branches with two or more branch points in the alkyl radical of the molecule and the weight ratio of the anionic surfactants, which are not soaps, to branched fatty alcohol alkoxylate is in the range from 3: 1 to 2: 1 and, based on the total amount of detergents, cleaning agents or pretreatment agents, contains branched fatty alcohol in a total amount of 3 to 10% by weight .

Überraschenderweise hat sich gezeigt, dass Fettalkoholalkoxylate mit einem verzweigten Alkylrest eine bessere Reinigungsleistung, insbesondere bei Waschtemperaturen von 40 °C oder 30 °C oder weniger im Hinblick auf fetthaltige Anschmutzungen aufweisen als vergleichbare lineare Fettalkoholalkoxylate. Zudem hat sich überraschenderweise gezeigt, dass ein hoher Alkoxylierungsgrad zu einer verbesserten Reinigungsleistung führt. Der Alkoxylierungsgrad beträgt daher vorzugsweise 9. Insbesondere hat sich gezeigt, dass ein Gemisch von anionischen Tensiden und nichtionischen Tensiden, bei welchem die nichtionischen Tenside wenigstens ein Fettalkoholethoxylat umfassen, dessen Ethoxylierungsgrad insbesondere 9 beträgt, besonders gut fetthaltige Anschmutzungen von Textilien entfernen kann.Surprisingly, it has been shown that fatty alcohol alkoxylates with a branched alkyl radical have better cleaning performance, in particular at washing temperatures of 40 ° C. or 30 ° C. or less, with regard to greasy stains than comparable linear fatty alcohol alkoxylates. In addition, it has surprisingly been found that a high degree of alkoxylation leads to improved cleaning performance. The degree of alkoxylation is therefore preferably 9. In particular, it has been shown that a mixture of anionic surfactants and nonionic surfactants, in which the nonionic surfactants comprise at least one fatty alcohol ethoxylate, the degree of ethoxylation in particular is 9, can remove fatty soiling from textiles particularly well.

Bei Einsatz eines erfindungsgemäßen nichtionischen Tensids mit einem Fettalkoholethoxylat mit einem verzweigten Alkylrest einer Kettenlänge von 9 bis 15 C-Atomen, bevorzugt von 12 bis 14 C-Atomen und besonders bevorzugt von 13 C-Atomen, und einem Alkoxylierungsgrad von 3 bis 9, insbesondere von 9 Alkoxylgruppen pro Mol Fettalkohol, wird ein flüssiges Wasch-, Reinigungs- oder Vorbehandlungsmittel erhalten, welches neben einer guten Waschleistung bei geringen Temperaturen auch eine hohe Phasenstabilität aufweist. In dem erhaltenen Wasch-, Reinigungs- oder Vorbehandlungsmittel zeigt sich keine Phasentrennung. Es ist daher lagerstabil.When using a nonionic surfactant according to the invention with a fatty alcohol ethoxylate with a branched alkyl radical with a chain length of 9 to 15 carbon atoms, preferably 12 to 14 carbon atoms and particularly preferably 13 carbon atoms, and a degree of alkoxylation of 3 to 9, in particular of 9 alkoxyl groups per mole of fatty alcohol, a liquid detergent, cleaning agent or pretreatment agent is obtained which, in addition to good washing performance at low temperatures, also has high phase stability. There is no phase separation in the detergent, cleaning agent or pretreatment agent obtained. It is therefore storage-stable.

Es ist bevorzugt, dass der Fettalkoholrest 12 bis 14 und insbesondere 13 C-Atome aufweist. Diese Fettalkoholalkoxylate können natürlichen Ursprungs, beispielsweise aus Kokos-, Palm- oder Talgfett sein. Besonders bevorzugt handelt es sich um ein verzweigtes Isotridecanol.It is preferred that the fatty alcohol radical has 12 to 14 and in particular 13 carbon atoms. These fatty alcohol alkoxylates can be of natural origin, for example from coconut, palm or tallow fat. It is particularly preferably a branched isotridecanol.

Erfindungsgemäß handelt es sich bei dem Fettalkoholalkoxylat um ein solches mit einem verzweigten Alkylrest. Das Fettalkoholalkoxylat weist zwei oder mehr endständige und/oder mittige Verzweigungen auf. Überraschenderweise hat sich gezeigt, dass auch bei einer starken Verzweigung mit zwei oder mehr Verzweigungspunkten im Molekül die Hydrophilic Lipophilic Balance (HLB) nicht negativ beeinflusst wird und auch bei geringen Waschtemperaturen von 40 °C oder 30 °C oder weniger eine gute Reinigung von Textilien erreicht wird, bei welcher fetthaltige Anschmutzungen vollständig oder nahezu vollständig entfernt werden.According to the invention, the fatty alcohol alkoxylate is one with a branched alkyl radical. The fatty alcohol alkoxylate has two or more terminal and / or central branches. Surprisingly, it has been shown that even with strong branching with two or more branch points in the molecule, the hydrophilic lipophilic balance (HLB) is not negatively influenced and textiles are cleaned well even at low washing temperatures of 40 ° C or 30 ° C or less in which greasy soiling is completely or almost completely removed.

Überraschenderweise hat sich gezeigt, dass eine gute Erhöhung der Reinigungsleistung bei geringen Temperaturen erzielt werden kann, wenn das Gewichtsverhältnis von anionischen Tensiden zu verzweigtem Fettalkoholalkoxylat in einem Bereich von 3:1 bis 2:1 liegt. Ebenso bevorzugt kann ein Bereich von 2:1 bis 1:1 sein. Besonders bevorzugt liegt das Verhältnis von anionischen Tensiden zu dem erfindungsgemäßen verzweigten Fettalkoholakoxylat bei 2:1. Erfindungsgemäß werden bei der Bestimmung des Gewichtsverhältnisses von anionischen Tensiden zu verzweigte, Seifen nicht zu den anionischen Tensiden gezählt, so dass es sich hier um anionische Tenside handelt, welche keine Seifen sind. Angegeben ist somit das Gewichtsverhältnis von anionischem Tensid, das keine Seife ist, zu Fettalkoholalkoxylat.It has surprisingly been found that a good increase in cleaning performance can be achieved at low temperatures if the weight ratio of anionic surfactants to branched fatty alcohol alkoxylate is in a range from 3: 1 to 2: 1. A range from 2: 1 to 1: 1 can also be preferred. The ratio of anionic surfactants to the branched fatty alcohol acoxylate according to the invention is particularly preferably 2: 1. According to the invention, when determining the weight ratio of anionic surfactants to branched ones, soaps are not counted among the anionic surfactants, so that these are anionic surfactants which are not soaps. The weight ratio of anionic surfactant, which is not soap, to fatty alcohol alkoxylate is thus given.

Die Gesamtmenge an verzweigtem Fettalkoholalkoxylat im erfindungsgemäßen flüssigen Wasch-, Reinigungs- oder Vorbehandlungsmittel liegt im Bereich von 3 bis 10 Gew.-%, insbesondere im Bereich von 5 bis 8 Gew.-%, bezogen auf die Gesamtmenge an Wasch-, Reinigungs- oder Vorbehandlungsmittel.The total amount of branched fatty alcohol alkoxylate in the liquid detergent, cleaning agent or pretreatment agent according to the invention is in the range from 3 to 10% by weight, in particular in the range from 5 to 8% by weight, based on the total amount of washing, cleaning or cleaning agent Pretreatment agent.

Neben dem Fettalkoholalkoxylat als nichtionisches Tensid kann das Wasch-, Reinigungs- oder Vorbehandlungsmittel weitere nichtionische Tenside enthalten. Diese umfassen beispielsweise Fettalkohole mit mehr als 12 EO. Beispiele hierfür sind Talgfettalkohol mit 14 EO, 25 EO, 30 EO oder 40 EO. Weitere geeignete nichtionische Tenside umfassen alkoxylierte Fettsäurealkylester, Fettsäureamide, Alkylpolyglucoside, alkoxylierte Fettsäureamide, Polyhydroxyfettsäureamide, N-Methylglucamide, Alkylphenolpolyglycolether, Aminoxide und Mischungen daraus.In addition to the fatty alcohol alkoxylate as a nonionic surfactant, the detergent, cleaning agent or pretreatment agent can contain other nonionic surfactants. These include, for example, fatty alcohols with more than 12 EO. Examples are tallow fatty alcohol with 14 EO, 25 EO, 30 EO or 40 EO. Further suitable nonionic surfactants include alkoxylated fatty acid alkyl esters, fatty acid amides, alkyl polyglucosides, alkoxylated fatty acid amides, polyhydroxy fatty acid amides, N-methylglucamides, alkylphenol polyglycol ethers, amine oxides and mixtures thereof.

Zusätzlich zu dem/den nichtionischen Tensid(en) umfasst das erfindungsgemäße flüssige Wasch-, Reinigungs- oder Vorbehandlungsmittel anionische Tenside. Erfindungsgemäß kann das Mittel ein anionisches Tensid oder Mischungen unterschiedlicher anionischer Tenside umfassen. Als anionisches Tensid werden vorzugsweise Sulfonate, Sulfate, Seifen, Alkylphosphate, anionische Silikontenside und Mischungen daraus eingesetzt.In addition to the nonionic surfactant (s), the liquid washing, cleaning or pretreatment agent according to the invention comprises anionic surfactants. According to the invention, the agent can comprise an anionic surfactant or mixtures of different anionic surfactants. As anionic surfactant, sulfonates, sulfates, soaps, alkyl phosphates, anionic silicone surfactants and mixtures thereof are preferably used.

Als Tenside vom Sulfonat-Typ kommen dabei vorzugsweise C9-13-Alkylbenzolsulfonate, Olefinsulfonate, d.h. Gemische aus Alken- und Hydroxyalkansulfonaten sowie Disulfonate, wie man sie beispielsweise aus C12-18-Monoolefinen mit end- oder innenständiger Doppelbindung durch Sulfonieren mit gasförmigem Schwefeltrioxid und anschließende alkalische oder saure Hydrolyse der Sulfonierungsprodukte erhält, in Betracht. Geeignet sind auch C12-18-Alkansulfonate und die Ester von α-Sulfofettsäuren (Estersulfonate), zum Beispiel die α-sulfonierten Methylester der hydrierten Kokos-, Palmkern- oder Talgfettsäuren.Surfactants of the sulfonate type are preferably C 9-13 alkylbenzenesulfonates, olefin sulfonates, ie mixtures of alkene and hydroxyalkane sulfonates and disulfonates, such as those obtained, for example, from C 12-18 monoolefins with terminal or internal double bonds by sulfonation with gaseous sulfur trioxide and subsequent alkaline or acidic hydrolysis of the sulfonation products is possible. Also suitable are C 12-18 alkane sulfonates and the esters of α-sulfo fatty acids (ester sulfonates), for example the α-sulfonated methyl esters of hydrogenated coconut, palm kernel or tallow fatty acids.

Als Alk(en)ylsulfate werden die Alkali- und insbesondere die Natriumsalze der Schwefelsäurehalbester der C12-C18-Fettalkohole, beispielsweise aus Kokosfettalkohol, Talgfettalkohol, Lauryl-, Myristyl-, Cetyl- oder Stearylalkohol oder der C10-C20-Oxoalkohole und diejenigen Halbester sekundärer Alkohole dieser Kettenlängen bevorzugt. Aus waschtechnischem Interesse sind die C12-C16-Alkylsulfate und C12-C15-Alkylsulfate sowie C14-C15-Alkylsulfate bevorzugt. Auch 2,3-Alkylsulfate sind geeignete anionische Tenside.The alk (en) yl sulfates are the alkali and especially the sodium salts of the sulfuric acid half esters of the C 12 -C 18 fatty alcohols, for example from coconut fatty alcohol, tallow fatty alcohol, lauryl, myristyl, cetyl or stearyl alcohol or the C 10 -C 20 oxo alcohols and those half esters of secondary alcohols of these chain lengths are preferred. From the point of view of washing technology, the C 12 -C 16 -alkyl sulfates and C 12 -C 15 -alkyl sulfates and also C 14 -C 15 -alkyl sulfates are preferred. 2,3-Alkyl sulfates are also suitable anionic surfactants.

Auch die Schwefelsäuremonoester der mit 1 bis 6 Mol Ethylenoxid ethoxylierten geradkettigen oder verzweigten C7-21-Alkohole, wie 2-Methyl-verzweigte C9-11-Alkohole mit im Durchschnitt 3,5 Mol Ethylenoxid (EO) oder C12-18-Fettalkohole mit 1 bis 4 EO, sind geeignet.The sulfuric acid monoesters of the straight-chain or branched C 7-21 alcohols ethoxylated with 1 to 6 moles of ethylene oxide, such as 2-methyl-branched C 9-11 alcohols with an average of 3.5 moles of ethylene oxide (EO) or C 12-18 - Fatty alcohols with 1 to 4 EO are suitable.

Seifen sind erfindungsgemäß die wasserlöslichen Natrium- oder Kaliumsalze der gesättigten und ungesättigten Fettsäuren mit 10 bis 20 Kohlenstoffatomen, der Harzsäuren des Kolophoniums (gelbe Harzseifen) und der Naphthensäuren, die als feste oder halbfeste Gemische in der Hauptsache für Wasch- und Reinigungszwecke verwendet werden. Natrium- oder Kaliumsalze der gesättigten und ungesättigten Fettsäuren mit 10 bis 20 Kohlenstoffatomen, insbesondere mit 12 bis 18 Kohlenstoffatomen, sind gemäß Erfindung bevorzugte Seifen. Besonders bevorzugte erfindungsgemäße Mittel sind dabei dadurch gekennzeichnet, dass sie - bezogen auf ihr Gewicht - 0,1 bis 15,0 Gew.-%, besonders bevorzugt 1,0 bis 10,0 Gew.-%, ganz besonders bevorzugt 3,0 bis 8,0 Gew.-% Seife(n) enthalten. Geeignet sind gesättigte und ungesättigte Fettsäureseifen, wie die Salze der Laurinsäure, Myristinsäure, Palmitinsäure, Stearinsäure, (hydrierten) Erucasäure und Behensäure sowie insbesondere aus natürlichen Fettsäuren, zum Beispiel Kokos-, Palmkern-, Olivenöl- oder Talgfettsäuren, abgeleitete Seifengemische.According to the invention, soaps are the water-soluble sodium or potassium salts of saturated and unsaturated fatty acids with 10 to 20 carbon atoms, the resin acids of rosin (yellow resin soaps) and naphthenic acids, which are used as solid or semi-solid mixtures mainly for washing and cleaning purposes. Sodium or potassium salts of saturated and unsaturated fatty acids with 10 to 20 carbon atoms, in particular with 12 to 18 carbon atoms, are preferred soaps according to the invention. Particularly preferred agents according to the invention are characterized in that they - based on their weight - 0.1 to 15.0% by weight, particularly preferably 1.0 to 10.0% by weight, very particularly preferably 3.0 to Contains 8.0% by weight of soap (s). Saturated and unsaturated fatty acid soaps, such as the salts of lauric acid, myristic acid, palmitic acid, stearic acid, (hydrogenated) erucic acid and behenic acid and, in particular, soap mixtures derived from natural fatty acids, for example coconut, palm kernel, olive oil or tallow fatty acids, are suitable.

Die anionischen Tenside sowie die Seifen können in Form ihrer Natrium-, Kalium-, Magnesium- oder Ammoniumsalze vorliegen. Vorzugsweise liegen die anionischen Tenside in Form ihrer Natriumsalze vor. Weitere bevorzugte Gegenionen für die anionischen Tenside sind auch die protonierten Formen von Cholin, Triethylamin, Monoethanolamin oder Methylethylamin.The anionic surfactants and the soaps can be in the form of their sodium, potassium, magnesium or ammonium salts. The anionic surfactants are preferably in the form of their sodium salts. Further preferred counterions for the anionic surfactants are also the protonated forms of choline, triethylamine, monoethanolamine or methylethylamine.

Zusätzlich zu den genannten nichtionischen und anionischen Tensiden kann das Wasch-, Reinigungs- oder Vorbehandlungsmittel weitere kationische und/oder zwitterionische Tenside umfassen. Aus anwendungstechnischer Sicht enthält das Wasch-, Reinigungs- oder Vorbehandlungsmittel bevorzugt nichtionische und anionische Tenside. Optional enthaltene kationische und/oder zwitterionische Tenside sind in der Literatur ausführlich beschrieben und dem Fachmann somit hinlänglich bekannt.In addition to the nonionic and anionic surfactants mentioned, the detergent, cleaning agent or pretreatment agent can comprise further cationic and / or zwitterionic surfactants. From an application point of view, the detergent, cleaning agent or pretreatment agent preferably contains nonionic and anionic surfactants. Cationic and / or zwitterionic surfactants optionally present are described in detail in the literature and are therefore sufficiently known to the person skilled in the art.

Erfindungsgemäß kann das Wasch-, Reinigungs- oder Vorbehandlungsmittel neben den Tensiden weitere Inhaltsstoffe enthalten, die die anwendungstechnischen und/oder ästhetischen Eigenschaften des Wasch-, Reinigungs- oder Vorbehandlungsmittels weiter verbessern. Im Rahmen der vorliegenden Erfindung enthält das Wasch-, Reinigungs- oder Vorbehandlungsmittel vorzugsweise zusätzlich einen oder mehrere Stoffe aus der Gruppe der Gerüststoffe, Bleichmittel, Bleichkatalysatoren, Bleichaktivatoren, Enzyme, Elektrolyte, nichtwässrigen Lösungsmittel, pH-Stellmittel, Parfümzusammensetzungen, Parfümträger, Fluoreszenzmittel, Farbstoffe, Hydrotope, Schauminhibitoren, Silikonöle, Soil-Release-Polymere, Vergrauungsinhibitoren, Einlaufverhinderer, Knitterschutzmittel, Farbübertragungsinhibitoren, weitere antimikrobiellen Wirkstoffe, Germizide, Fungizide, Antioxidantien, Konservierungsmittel, Korrosionsinhibitoren, Antistatika, Bittermittel, Bügelhilfsmittel, Phobier- und Imprägniermittel, Quell- und Schiebefestmittel, weichmachenden Komponenten, hautpflegenden Mittel, Waschkraft-verstärkenden Polymer ("Booster-Polymere") sowie UV-Absorber.According to the invention, the detergent, cleaning agent or pretreatment agent can contain, in addition to the surfactants, further ingredients which further improve the application-related and / or aesthetic properties of the washing agent, cleaning agent or pretreatment agent. In the context of the present invention, the detergent, cleaning agent or pretreatment agent preferably additionally contains one or more substances from the group of builders, bleaches, bleach catalysts, bleach activators, enzymes, electrolytes, non-aqueous solvents, pH adjusters, perfume compositions, perfume carriers, fluorescent agents, dyes , Hydrotopes, foam inhibitors, silicone oils, soil release polymers, graying inhibitors, anti-creep agents, anti-crease agents, dye transfer inhibitors, other antimicrobial agents, germicides, fungicides, antioxidants, preservatives, corrosion inhibitors, antistatic and swelling agents, anti-slip agents, anti-slip agents, anti-slip agents, anti-slip agents, anti-slip agents, anti-slip agents, anti-slip agents, anti-slip agents, anti-slip agents, anti-slip agents, anti-slip agents, anti-slip agents, anti-slip agents, anti-slip agents, anti-slip agents, anti-slip agents, anti-slip agents , softening components, skin care agents, detergency-enhancing polymers ("booster polymers") and UV absorbers.

Besonders bevorzugte zusätzliche Inhaltsstoffe sind Gerüststoffe, Enzyme, Elektrolyte, nichtwässrige Lösungsmittel, pH-Stellmittel, Parfümzusammensetzungen, Fluoreszenzmittel, Farbstoffe, Hydrotope, Schauminhibitoren, Soil-Release-Polymere, Vergrauungsinhibitoren, Farbübertragungsinhibitoren, weichmachenden Komponenten, UV-Absorber sowie Mischungen daraus.Particularly preferred additional ingredients are builders, enzymes, electrolytes, non-aqueous solvents, pH adjusters, perfume compositions, fluorescent agents, dyes, hydrotopes, foam inhibitors, soil release polymers, graying inhibitors, color transfer inhibitors, plasticizing components, UV absorbers and mixtures thereof.

Als Gerüststoffe, die in dem Wasch-, Reinigungs- oder Vorbehandlungsmittel enthalten sein können, sind insbesondere Silikate, Aluminiumsilikate (insbesondere Zeolithe), Carbonate, Salze organischer Di- und Polycarbonsäuren sowie Mischungen dieser Stoffe zu nennen.Builders that may be contained in the detergent, cleaning agent or pretreatment agent include, in particular, silicates, aluminum silicates (especially zeolites), carbonates, salts of organic di- and polycarboxylic acids and mixtures of these substances.

Organische Gerüststoffe, welche in dem Wasch-, Reinigungs- oder Vorbehandlungsmittel vorhanden sein können, sind beispielsweise die in Form ihrer Natriumsalze einsetzbaren Polycarbonsäuren, wobei unter Polycarbonsäuren solche Carbonsäuren verstanden werden, die mehr als eine Säurefunktion tragen. Beispielsweise sind dies Citronensäure, Adipinsäure, Bernsteinsäure, Glutarsäure, Äpfelsäure, Weinsäure, Maleinsäure, Fumarsäure, Zuckersäuren, Aminocarbonsäuren, Nitrilotriessigsäure (NTA), Methylglycindiessigsäure (MGDA) und deren Abkömmlinge sowie Mischungen aus diesen. Bevorzugte Salze sind die Salze der Polycarbonsäuren wie Citronensäure, Adipinsäure, Bernsteinsäure, Glutarsäure, Weinsäure, Zuckersäuren und Mischungen aus diesen.Organic builders which can be present in the detergent, cleaning agent or pretreatment agent are, for example, the polycarboxylic acids which can be used in the form of their sodium salts, polycarboxylic acids being understood as meaning those carboxylic acids which carry more than one acid function. For example, these are citric acid, adipic acid, succinic acid, glutaric acid, malic acid, tartaric acid, maleic acid, fumaric acid, sugar acids, aminocarboxylic acids, nitrilotriacetic acid (NTA), methylglycinediacetic acid (MGDA) and their derivatives and mixtures of these. Preferred salts are the salts of Polycarboxylic acids such as citric acid, adipic acid, succinic acid, glutaric acid, tartaric acid, sugar acids and mixtures of these.

Als Gerüststoffe sind weiter polymere Polycarboxylate geeignet. Dies sind beispielsweise die Alkalimetallsalze der Polyacrylsäure oder der Polymethacrylsäure, zum Beispiel solche mit einer relativen Molekülmasse von 600 bis 750.000 g / mol.Polymeric polycarboxylates are also suitable as builders. These are, for example, the alkali metal salts of polyacrylic acid or polymethacrylic acid, for example those with a relative molecular weight of 600 to 750,000 g / mol.

Geeignete Polymere sind insbesondere Polyacrylate, die bevorzugt eine Molekülmasse von 1.000 bis 15.000 g/mol aufweisen. Aufgrund ihrer überlegenen Löslichkeit können aus dieser Gruppe wiederum die kurzkettigen Polyacrylate, die Molmassen von 1.000 bis 10.000 g / mol, und besonders bevorzugt von 1.000 bis 5.000 g / mol, aufweisen, bevorzugt sein.Suitable polymers are in particular polyacrylates, which preferably have a molecular weight of 1,000 to 15,000 g / mol. Because of their superior solubility, the short-chain polyacrylates from this group, which have molar masses from 1,000 to 10,000 g / mol, and particularly preferably from 1,000 to 5,000 g / mol, can in turn be preferred.

Geeignet sind weiterhin copolymere Polycarboxylate, insbesondere solche der Acrylsäure mit Methacrylsäure und der Acrylsäure oder Methacrylsäure mit Maleinsäure. Zur Verbesserung der Wasserlöslichkeit können die Polymere auch Allylsulfonsäuren, wie Allyloxybenzolsulfonsäure und Methallylsulfonsäure, als Monomer enthalten.Also suitable are copolymeric polycarboxylates, in particular those of acrylic acid with methacrylic acid and acrylic acid or methacrylic acid with maleic acid. To improve the water solubility, the polymers can also contain allylsulfonic acids, such as allyloxybenzenesulfonic acid and methallylsulfonic acid, as monomers.

Bevorzugt werden allerdings lösliche Gerüststoffe, wie beispielsweise Citronensäure, oder Acrylpolymere mit einer Molmasse von 1.000 bis 5.000 g / mol in den flüssigen Wasch- oder Reinigungsmitteln eingesetzt.However, preference is given to using soluble builders, such as citric acid, or acrylic polymers with a molar mass of 1,000 to 5,000 g / mol in the liquid detergents or cleaning agents.

Das erfindungsgemäße Wasch-, Reinigungs- oder Vorbehandlungsmittel weist bevorzugt eine Fließgrenze auf. Die Fließgrenze bezeichnet die kleinste Spannung (Kraft pro Fläche), oberhalb derer ein plastischer Stoff sich rheologisch wie eine Flüssigkeit verhält. Sie wird daher in Pascal (Pa) angegeben. Die Fließgrenze des erfindungsgemäßen Mittels liegt insbesondere bei 25 °C im Bereich von 0,1 bis 1,0 Pa, bevorzugt im Bereich von 0,2 bis 0,9 Pa, insbesondere im Bereich von 0,3 bis 0,8 Pa. Die Fließgrenze wird erfindungsgemäß durch Messung mit einem Rheometer, insbesondere mit einem Rheometer AR 1000-N der Firma Texas Instruments, bei einer Temperatur von 25°C bestimmt. Das Rheometer AR 1000-N ist ein absolut messendes Rheometer. Die von dem Rheometer AR 1000-N ausgegebenen Messwerte werden zudem abhängig von den verwendeten Messgeometrien mit entsprechenden Korrekturfaktoren korrigiert, so dass das verwendete Rheometer AR 1000-N von der Messgeometrie unabhängige und verlässliche, absolute Messwerte ermittelt.The detergent, cleaning agent or pretreatment agent according to the invention preferably has a flow limit. The flow limit describes the smallest stress (force per area) above which a plastic material behaves rheologically like a liquid. It is therefore given in Pascal (Pa). The flow limit of the agent according to the invention is in particular at 25 ° C. in the range from 0.1 to 1.0 Pa, preferably in the range from 0.2 to 0.9 Pa, in particular in the range from 0.3 to 0.8 Pa. According to the invention, the yield point is determined by measurement with a rheometer, in particular with an AR 1000-N rheometer from Texas Instruments, at a temperature of 25.degree. The rheometer AR 1000-N is an absolute measuring rheometer. The measured values output by the AR 1000-N rheometer are also corrected with appropriate correction factors depending on the measuring geometries used, so that the AR 1000-N rheometer used determines reliable, absolute measured values that are independent of the measuring geometry.

Ein erfindungsgemäßes Wasch-, Reinigungs- oder Vorbehandlungsmittel kann als zusätzlichen Inhaltsstoff, insbesondere wenn es eine Fließgrenze aufweist, dispergierte Partikel, deren Durchmesser entlang ihrer größten räumlichen Ausdehnung vorzugsweise 1 bis 2000 µm beträgt, enthalten. Partikel können im Sinne dieser Erfindung Kapseln, Abrasivstoffe als auch Pulver, Granulate oder Compounds von in dem Wasch-, Reinigungs- oder Vorbehandlungsmittel unlöslichen Verbindungen sein, wobei Kapseln bevorzugt sind.A washing, cleaning or pretreatment agent according to the invention can contain, as an additional ingredient, especially if it has a flow limit, dispersed particles whose diameter along their greatest spatial extent is preferably 1 to 2000 μm. For the purposes of this invention, particles can be capsules, abrasives and powders, Granules or compounds of compounds that are insoluble in the detergent, cleaning agent or pretreatment agent, capsules being preferred.

Unter dem Begriff "Kapsel" werden einerseits Aggregate mit einer Kern-Hülle-Struktur und andererseits Aggregate mit einer Matrix verstanden. Kern-Hülle-Kapseln enthalten mindestens einen festen oder flüssigen Kern, der von mindestens einer kontinuierlichen Hülle, insbesondere einer Hülle aus Polymer(en), umschlossen ist.The term “capsule” is understood to mean aggregates with a core-shell structure on the one hand and aggregates with a matrix on the other. Core-shell capsules contain at least one solid or liquid core which is enclosed by at least one continuous shell, in particular a shell made of polymer (s).

Im Inneren der Kapseln können empfindliche, chemisch oder physikalisch inkompatible sowie flüchtige Komponenten (= Wirkstoffe) des flüssigen Wasch-, Reinigungs- oder Vorbehandlungsmittels lager- und transportstabil eingeschlossen werden. In den Kapseln können sich beispielsweise optische Aufheller, Tenside, Komplexbildner, Bleichmittel, Bleichaktivatoren, Farb- und Duftstoffe, Antioxidantien, Gerüststoffe, Enzyme, Enzym-Stabilisatoren, antimikrobielle Wirkstoffe, Vergrauungsinhibitoren, Antiredepositionsmittel, pH-Stellmittel, Elektrolyte, Waschkraftverstärker, Vitamine, Proteine, Schauminhibitoren und UV-Absorber befinden. Die Füllungen der Kapseln können Feststoffe oder Flüssigkeiten in Form von Lösungen oder Emulsionen beziehungsweise Suspensionen sein.Sensitive, chemically or physically incompatible and volatile components (= active ingredients) of the liquid washing, cleaning or pretreatment agent can be enclosed in the interior of the capsules in a way that is stable for storage and transport. The capsules can contain, for example, optical brighteners, surfactants, complexing agents, bleaching agents, bleach activators, dyes and fragrances, antioxidants, builders, enzymes, enzyme stabilizers, antimicrobial agents, graying inhibitors, anti-redeposition agents, pH adjusters, electrolytes, detergency boosters, vitamins, proteins , Foam inhibitors and UV absorbers. The fillings of the capsules can be solids or liquids in the form of solutions or emulsions or suspensions.

Die Kapseln können im herstellungsbedingten Rahmen eine beliebige Form aufweisen, sie sind jedoch bevorzugt näherungsweise kugelförmig. Ihr Durchmesser entlang ihrer größten räumlichen Ausdehnung kann je nach den in ihrem Inneren enthaltenen Komponenten und der Anwendung zwischen 1 µm und 2000 µm liegen.The capsules can have any shape within the scope of the production process, but they are preferably approximately spherical. Their diameter along their greatest spatial extent can be between 1 µm and 2000 µm, depending on the components contained in their interior and the application.

Alternativ können auch Partikel eingesetzt werden, die keine Kern-Hülle-Struktur aufweisen, sondern in denen der Wirkstoff in einer Matrix aus einem Matrix-bildenden Material verteilt ist. Solche Partikel werden auch als "Matrixpartikel" bezeichnet.Alternatively, it is also possible to use particles which do not have a core-shell structure, but in which the active ingredient is distributed in a matrix made of a matrix-forming material. Such particles are also referred to as “matrix particles”.

Die Matrixbildung erfolgt bei diesen Materialien beispielsweise über Gelierung, Polyanion-Polykation-Wechselwirkungen oder Polyelektrolyt-Metallion-Wechselwirkungen und ist im Stand der Technik genauso wie die Herstellung von Partikeln mit diesen Matrix-bildenden Materialien wohl bekannt. Ein beispielhaftes Matrix-bildendes Material ist Alginat. Zur Herstellung Alginatbasierter Partikel wird eine wässrige Alginat-Lösung, welche auch den einzuschließenden Wirkstoff beziehungsweise die einzuschließenden Wirkstoffe enthält, vertropft und anschließend in einem Ca2+-Ionen oder Al3+-Ionen enthaltendem Fällbad ausgehärtet. Alternativ können anstelle von Alginat andere, Matrix-bildende Materialien eingesetzt werden.With these materials, the matrix formation takes place, for example, via gelation, polyanion-polycation interactions or polyelectrolyte-metal ion interactions and is well known in the prior art, as is the production of particles with these matrix-forming materials. An exemplary matrix-forming material is alginate. To produce alginate-based particles, an aqueous alginate solution, which also contains the active ingredient or ingredients to be included, is dripped and then hardened in a precipitation bath containing Ca 2+ ions or Al 3+ ions. Alternatively, other matrix-forming materials can be used instead of alginate.

Die Kapseln können stabil in den flüssigen Wasch-, Reinigungs- oder Vorbehandlungsmitteln dispergiert werden. Stabil bedeutet, dass die Wasch-, Reinigungs- oder Vorbehandlungsmittel bei Raumtemperatur über einen Zeitraum von mindestens 4 Wochen und bevorzugt von mindestens 6 Wochen stabil sind, ohne dass die Partikel in dem Mittel aufrahmen oder sedimentieren.The capsules can be dispersed stably in the liquid detergents, cleaning agents or pretreatment agents. Stable means that the detergents, cleaning agents or pretreatment agents are used Room temperature are stable for a period of at least 4 weeks and preferably for at least 6 weeks without the particles creaming or sedimenting in the agent.

Die Freisetzung der Wirkstoffe aus den Kapseln erfolgt üblicherweise durch Zerstörung der Hülle bzw. der Matrix infolge mechanischer, thermischer, chemischer oder enzymatischer Einwirkung.The active ingredients are usually released from the capsules by destroying the shell or the matrix as a result of mechanical, thermal, chemical or enzymatic action.

In einer bevorzugten Ausführungsform enthalten die flüssigen Wasch-, Reinigungs- oder Vorbehandlungsmittel Kapseln in denen ein oder mehrere Duftstoffe enthalten sind.In a preferred embodiment, the liquid washing, cleaning or pretreatment agents contain capsules in which one or more fragrances are contained.

Die erfindungsgemäßen Wasch-, Reinigungs- oder Vorbehandlungsmittel sind flüssig und enthalten vorzugsweise Wasser als Hauptlösungsmittel. Daneben können dem Wasch-, Reinigungs- oder Vorbehandlungsmittel nichtwässrige Lösungsmittel zugesetzt werden. Geeignete nichtwässrige Lösungsmittel umfassen ein- oder mehrwertige Alkohole, Alkanolamine oder Glykolether, in einem solchen Konzentrationsbereich, in dem sie mit Wasser mischbar sind. Vorzugsweise werden die Lösungsmittel ausgewählt aus Ethanol, n-Propanol, i-Propanol, Butanolen, Glykol, Propandiol, Butandiol, Methylpropandiol, Glycerin, Diglykol, Propyldiglycol, Butyldiglykol, Hexylenglykol, Ethylenglykolmethylether, Ethylenglykolethylether, Ethylenglykolpropylether, Ethylenglykolmono-n-butylether, Diethylenglykolmethylether, Diethylenglykolethylether, Propylenglykolmethylether, Propylenglykolethylether, Propylenglykolpropylether, Dipropylenglykolmonomethylether, Dipropylenglykolmonoethylether, Methoxytriglykol, Ethoxytriglykol, Butoxytriglykol, 1-Butoxyethoxy-2-propanol, 3-Methyl-3-methoxybutanol, Propylenglykol-t-butylether, Di-n-octylether sowie Mischungen dieser Lösungsmittel. Es ist allerdings bevorzugt, dass das Wasch-, Reinigungs- oder Vorbehandlungsmittel einen Alkohol, insbesondere Ethanol und/oder Glycerin, in Mengen zwischen 0,5 und 5 Gew.-%, bezogen auf das gesamte Wasch-, Reinigungs- oder Vorbehandlungsmittel enthält.The detergents, cleaning agents or pretreatment agents according to the invention are liquid and preferably contain water as the main solvent. In addition, non-aqueous solvents can be added to the detergent, cleaning agent or pretreatment agent. Suitable non-aqueous solvents include mono- or polyhydric alcohols, alkanolamines or glycol ethers, in such a concentration range that they are miscible with water. The solvents are preferably selected from ethanol, n-propanol, i-propanol, butanols, glycol, propanediol, butanediol, methylpropanediol, glycerol, diglycol, propyl diglycol, butyl diglycol, hexylene glycol, ethylene glycol methyl ether, ethylene glycol ethyl ether, ethylene glycol ether, ethylene glycol propyl ether, Diethylene glycol ethyl ether, propylene glycol methyl ether, propylene glycol ethyl ether, propylene glycol propyl ether, dipropylene glycol monomethyl ether, dipropylene glycol monoethyl ether, methoxytriglycol, ethoxytriglycol, butoxytriglycol, 1-butoxyethoxy-2-propanol, solvents of these n-butoxyethoxy-2-propanol, propyl-butyl-3-butyl ether, and mixtures of these solvents, n-butoxyethoxy-2-propanol, propyl-butyl-3-butyl-ether, propyl-octanol, propyl-2-propanol, 3-butyl-3-methylether, propylenglycol, di-octanol ether, propylene glycol, propyl glycol, propylene glycol, propylene glycol, 3-butyl ether, propylene glycol monomethyl ether, dipropylene glycol monomethyl ether, and mixtures of these solvents. However, it is preferred that the washing, cleaning or pretreatment agent contains an alcohol, in particular ethanol and / or glycerine, in amounts between 0.5 and 5% by weight, based on the total washing, cleaning or pretreatment agent.

Das flüssige Wasch-, Reinigungs- oder Vorbehandlungsmittel kann weiterhin ein Enzym oder eine Mischung aus Enzymen enthalten. Geeignet sind insbesondere solche aus der Klasse der Hydrolasen wie der Proteasen, (Poly)Esterasen, Lipasen, Amylasen, Glykosylhydrolasen, Hemicellulasen, Pektatlyase, Xyloglucanase, Cutinasen, β-Glucanasen, Oxidasen, Peroxidasen, Mannanasen, Perhydrolasen, Oxireduktasen und/oder Laccasen. Die Menge an Enzym bzw. an den Enzymen beträgt vorzugsweise 0,01 bis 10 Gew.-%, vorzugsweise 0,12 bis etwa 3 Gew.-%, bezogen auf das gesamte Wasch-, Reinigungs- oder Vorbehandlungsmittel. Die Enzyme werden bevorzugt als Enzymflüssigformulierung(en) eingesetzt.The liquid washing, cleaning or pretreatment agent can furthermore contain an enzyme or a mixture of enzymes. Those from the class of hydrolases such as proteases, (poly) esterases, lipases, amylases, glycosyl hydrolases, hemicellulases, pectate lyase, xyloglucanase, cutinases, β-glucanases, oxidases, peroxidases, mannanases, perhydrolases, oxireductases and / or laccases are particularly suitable. The amount of enzyme or enzymes is preferably 0.01 to 10% by weight, preferably 0.12 to about 3% by weight, based on the total detergent, cleaning agent or pretreatment agent. The enzymes are preferably used as liquid enzyme formulation (s).

Die Herstellung eines erfindungsgemäßen Wasch-, Reinigungs- oder Vorbehandlungsmittels erfolgt mittels üblicher und bekannter Methoden und Verfahren. So können beispielsweise die Bestandteile der Wasch-, Reinigungs- oder Vorbehandlungsmittel einfach in Rührkesseln vermischt werden, wobei Wasser, nicht-wässriges Lösungsmittel, saure Komponenten, wie beispielsweise Alkylarylsulfonsäure, Citronensäure, Borsäure oder Phosphonsäure, Fettalkoholethersulfate, falls jeweils vorhanden, sowie das erfindungsgemäße nichtionische Tensid zweckmäßigerweise vorgelegt werden. Anschließend wird die Fettsäure, falls vorhanden, zugegeben und es erfolgt die Verseifung des Fettsäureanteils bei 50 bis 60 °C. Anschließend werden die weiteren Bestandteile, vorzugsweise portionsweise, hinzugefügt.A washing, cleaning or pretreatment agent according to the invention is produced by means of customary and known methods and processes. For example, the constituents of the detergents, cleaning agents or pretreatment agents can simply be mixed in stirred kettles water, non-aqueous solvent, acidic components such as alkylarylsulfonic acid, citric acid, boric acid or phosphonic acid, fatty alcohol ether sulfates, if any, and the nonionic surfactant according to the invention are expediently initially introduced. The fatty acid, if present, is then added and the fatty acid content is saponified at 50 to 60 ° C. The other constituents are then added, preferably in portions.

In einer weiteren Ausführungsform betrifft die vorliegende Erfindung die Verwendung eines flüssigen Wasch-, Reinigungs- oder Vorbehandlungsmittels zum Waschen, Reinigen und/oder Vorbehandeln von Textilien. Bei Textilien im Sinne der vorliegenden Erfindung handelt es sich insbesondere um textile Flächengebilde, wie beispielsweise Bekleidungsstücke, Bad- oder Wäschetextilien. Diese können natürliche und/oder synthetische Fasern, wie beispielsweise Seide, Leinen, Baumwolle, Polyester, Polyamid oder Acetatefasen umfassen. Die Fasern können behandelt oder unbehandelt sein. Es sind weiterhin solche textile Flächengebilde umfasst, die aus gewebten oder nicht gewebten Materialien, wie beispielsweise Vliesstoffen, bestehen.In a further embodiment, the present invention relates to the use of a liquid washing, cleaning or pretreatment agent for washing, cleaning and / or pretreating textiles. Textiles in the context of the present invention are in particular flat textile structures such as items of clothing, bath or laundry textiles. These can include natural and / or synthetic fibers such as silk, linen, cotton, polyester, polyamide or acetate fibers. The fibers can be treated or untreated. It also includes such textile fabrics that are made of woven or non-woven materials, such as nonwovens.

Ausführungsbeispiele:Embodiments:

Es wurden unterschiedliche Tensidzusammensetzungen hergestellt, in denen lediglich ein nichtionisches Tensid variiert wurde. Das Gesamttensidverhältnis wurde nicht verändert. In den Beispielen V1, V2 und V3 (Vergleichsbeispiele) wurde ein kommerziell erhältliches Fettalkoholethoxylat mit einem linearen Alkylrest mit einer Kettenlänge C12 bis C14 eingesetzt. Der Ethoxylierungsgrad betrug 4 (V1), 7 (V2) beziehungsweise 9 (V3). In den erfindungsgemäßen Beispielen E1 und E2 wurde jeweils ein erfindungsgemäßes Fettalkoholethoxylat mit einem verzweigten Alkylrest mit einer C13-Kette und einem Ethoxylierungsgrad von 3 (E1) beziehungsweise 9 (E2) eingesetzt.

Figure imgb0001
Different surfactant compositions were produced in which only one nonionic surfactant was varied. The total surfactant ratio was not changed. In Examples V1, V2 and V3 (comparative examples), a commercially available fatty alcohol ethoxylate with a linear alkyl radical with a chain length of C 12 to C 14 was used. The degree of ethoxylation was 4 (V1), 7 (V2) or 9 (V3). In Examples E1 and E2 according to the invention, a fatty alcohol ethoxylate according to the invention with a branched alkyl radical with a C 13 chain and a degree of ethoxylation of 3 (E1) or 9 (E2) was used.
Figure imgb0001

Die Angaben erfolgen jeweils in Gew.-% der Aktivsubstanz.The information is given in% by weight of the active substance.

Es wurden die folgenden kommerziell erhältlichen nichtionischen Fettalkoholethoxylate eingesetzt: Tabelle 2 Fettalkoholethoxylat Alkylrest Alkylkettenlänge Ethoxylierungsgrad F1 linear C12 bis C14 4EO F2 linear C12 bis C14 7EO F3 linear C12 bis C14 9EO F4 verzweigt C13 3EO F5 verzweigt C13 9EO The following commercially available nonionic fatty alcohol ethoxylates were used: Table 2 Fatty alcohol ethoxylate Alkyl radical Alkyl chain length Degree of ethoxylation F1 linear C 12 to C 14 4EO F2 linear C 12 to C 14 7EO F3 linear C 12 to C 14 9EO F4 branched C 13 3EO F5 branched C 13 9EO

Die Fettalkoholalkoxylate wurden von der Firma Sasol Germany GmbH, Hamburg (Deutschland), bezogen.The fatty alcohol alkoxylates were obtained from Sasol Germany GmbH, Hamburg (Germany).

Die Zusammensetzungen V1, V2, V3 und E1 und E2 wurden in einem miniaturisierten Waschversuch zur Reinigung von fetthaltigen Anschmutzungen eingesetzt. Für die Versuche wurden die folgenden kommerziell erhältlichen Anschmutzungen verwendet:

10D
Pigment/Sebum on Cotton (Pigment/Hautfett auf Baumwolle)
20D
Pigment/Sebum on Cotton/Polyester (35/65) (Pigment/Hautfett auf Baumwolle/Polyester (35/65))
CS61
Beef Fat on Cotton (Rinderfett auf Baumwolle)
CS62
Lard on Cotton (Schweinefett auf Baumwolle)
The compositions V1, V2, V3 and E1 and E2 were used in a miniaturized washing experiment to clean greasy soiling. The following commercially available soils were used for the tests:
10D
Pigment / Sebum on Cotton (pigment / sebum on cotton)
20D
Pigment / sebum on cotton / polyester (35/65) (pigment / sebum on cotton / polyester (35/65))
CS61
Beef Fat on Cotton
CS62
Lard on Cotton

Die Anschmutzungen 10D und 20D wurden von WFK, Cleaning Technology Institute, Krefeld (Deutschland) erworben. Die Anschmutzungen CS61 und CS62 stammen von CFT, Center for Testmaterials BV, Vloadingen (Niederlande).Soiling 10D and 20D were purchased from WFK, Cleaning Technology Institute, Krefeld (Germany). The soiling CS61 and CS62 originate from CFT, Center for Testmaterials BV, Vloadingen (Netherlands).

Die fettigen Anschmutzungen wurden in einem standardisierten miniaturisierten Waschtest gewaschen, danach gespült und getrocknet. Anschließend wurde der Remissionswert spektralphotometrisch mit einer Minolta CR400-1 Kamera vermessen.The greasy soiling was washed in a standardized miniaturized washing test, then rinsed and dried. The remission value was then measured spectrophotometrically with a Minolta CR400-1 camera.

Die Waschtemperatur betrug 25 °C, die Waschzeit 1 Stunde. Die Flottenmenge betrug 50 ml, die Dosierung der unterschiedlichen Zusammensetzung der Wasch-, Reinigungs- oder Vorbehandlungsmittel jeweils 0,21 g. Die spektralphotometrische Bestimmung des Remissionswerts erfolgte jeweils auf 5 Proben. In der nachfolgenden Tabelle 3 sind die Ergebnisse als Mittelwert der 5-fach Bestimmung für die einzelnen Anschmutzungen sowie deren Summe gezeigt:

Figure imgb0002
The washing temperature was 25 ° C. and the washing time was 1 hour. The amount of liquor was 50 ml, the dosage of the different compositions of detergents, cleaning agents or pretreatment agents was 0.21 g in each case. The spectrophotometric determination of the reflectance value was carried out on 5 samples in each case. In the following table 3 the results are shown as the mean value of the 5-fold determination for the individual soiling as well as their sum:
Figure imgb0002

Die Ergebnisse zeigen, dass durch ein erfindungsgemäßes flüssiges Wasch-, Reinigungs- oder Vorbehandlungsmittel, welches ein Fettalkoholethoxylat mit einem verzweigten Alkylrest umfasst, ein besseres Reinigungsergebnis erzielt werden kann als mit linearen Fettalkoholalkoxylaten. Insbesondere das verzweigte Fettalkoholethoxylat mit 9 Ethoxylgruppen/Mol Fettalkohol (E2) zeigt eine sehr gute Reinigungsleistung sowohl bei den nur fetthaltigen Anschmutzungen CS61 und CS62, als auch bei den fett- und pigmenthaltigen Anschmutzungen 10D und 20D.The results show that a liquid washing, cleaning or pretreatment agent according to the invention which comprises a fatty alcohol ethoxylate with a branched alkyl radical can achieve a better cleaning result than with linear fatty alcohol alkoxylates. In particular, the branched fatty alcohol ethoxylate with 9 ethoxyl groups / mole fatty alcohol (E2) shows a very good cleaning performance both with the only greasy stains CS61 and CS62, as well as with the greasy and pigmented stains 10D and 20D.

Überraschenderweise hat sich gezeigt, dass höher ethoxylierte Fettalkoholethoxylate mit verzweigten Alkylketten die beste Fettentfernung bewirken. Dies ist daher überraschend, da bisher angenommen wurde, dass nichtionische Tenside knapp unterhalb ihres Trübungspunkts die stärkste Waschleistung haben. Der Trübungspunkt nichtionischer Tenside steigt mit wachsendem Alkoxylierungsgrad und insbesondere Ethoxylierungsgrad. Somit war zu erwarten, dass ein Fettalkoholethoxylat mit einem geringen Ethoxylierungsgrad zu besserer Waschleistung bei niedrigen Temperaturen führt. Überraschenderweise hat sich gezeigt, dass dies zwar bei linearen Fettalkoholalkoxylaten zutrifft, nicht jedoch bei verzweigten Alkylketten.Surprisingly, it has been shown that more highly ethoxylated fatty alcohol ethoxylates with branched alkyl chains bring about the best fat removal. This is therefore surprising, since it was previously assumed that nonionic surfactants have the strongest washing performance just below their cloud point. The cloud point of nonionic surfactants increases with the degree of alkoxylation and, in particular, the degree of ethoxylation. It was therefore to be expected that a fatty alcohol ethoxylate with a low degree of ethoxylation would lead to better washing performance at low temperatures. Surprisingly, it has been shown that this is true for linear fatty alcohol alkoxylates, but not for branched alkyl chains.

Es hat sich überraschenderweise gezeigt, dass verzweigte Alkylketten grundsätzlich eine bessere Reinigungsleistung gegenüber linearen Alkylketten haben. Zudem sorgte überraschenderweise ein hoher Alkoxylierungsgrad, insbesondere ein Ethoxylierungsgrad für eine besonders gute Reinigung.It has surprisingly been found that branched alkyl chains basically have a better cleaning performance than linear alkyl chains. In addition, a high degree of alkoxylation, in particular a degree of ethoxylation, surprisingly ensured particularly good cleaning.

Claims (7)

  1. A liquid washing, cleaning or pretreatment agent for textiles, comprising a mixture of anionic surfactants and non-ionic surfactants, characterized in that it contains water as the principal solvent and the non-ionic surfactants have at least one fatty alcohol alkoxylate having a branched alkyl group that has a chain length of 9 to 15 C atoms and having a degree of alkoxylation of 3 to 9 alkoxyl groups per mol of fatty alcohol, the fatty alcohol alkoxylate having two or more terminal and/or central branches having two or more branch points in the alkyl group of the molecule, and the weight ratio of the anionic surfactants, which are not soaps, to branched fatty alcohol alkoxylate being in the range from 3:1 to 2:1 and branched fatty alcohol being contained in a total amount of 3 to 10 wt.%, based on the total amount of washing, cleaning or pretreatment agent.
  2. The agent according to claim 1, characterized in that the degree of alkoxylation is 9.
  3. The agent according to claim 1 or 2, characterized in that the fatty alcohol alkoxylate is a fatty alcohol ethoxylate, the degree of ethoxylation of which is in particular 9.
  4. The agent according to one of claims 1 to 3, characterized in that the fatty alcohol group has 12 to 14, in particular 13, C atoms.
  5. The agent according to one of claims 1 to 4, characterized in that the weight ratio of anionic surfactants to branched fatty alcohol alkoxylate is 2:1.
  6. The agent according to one of claims 1 to 5, characterized in that, at 25 °C, it has a yield point which is in the range from 0.1 Pa to 1.0 Pa in particular at 25 °C.
  7. The use of a liquid washing, cleaning or pretreatment agent according to one of claims 1 to 6 for washing, cleaning and/or pretreating textiles.
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