EP2711413B1 - Washing agent and method for metering a washing agent - Google Patents

Description

The invention relates to a detergent for washing laundry (textiles) with two separate phases (components) and a method for dosing a detergent by means of an automatic dosing device for separate dosing of various components of a detergent.

Liquid detergents do not achieve the cleaning performance of powder detergents when washing laundry. In essence, this is due to lack of bleaching power and a poorer builder system. If builders acting effectively in liquid detergents were integrated, the formulation would become unstable. If liquid bleaches were incorporated into liquid detergents, then enzymes would be damaged and the cleaning performance would decrease.

So far, the maximum achievable cleaning performance with automatic liquid metering in the household sector is dictated by the liquid detergent. However, since effective complexing agents can not be integrated into liquid detergents, the cleaning performance compared to powdered detergents, which have a strong builder system, drops significantly.

On the other hand, requires a dosage of several separate components in a washing machine dependent on the number of components structural complexity.

The DE 25 54 592 A1 refers to a process for washing textiles, in which first surfactants and at a later time builders are added to the wash liquor. However, it remains unknown that component 2 of the detergent system also contains surfactants WO2011 / 060109 describes a wash process with at least two washes, wherein bleach and optical brightener are added sequentially.

The invention was thus based on the object of proposing a detergent with as few separate components as possible in order, on the one hand, to obtain an effectively acting, stably storable liquid detergent for washing laundry and, on the other hand, to minimize the amount of construction work required for dosing in a washing machine.

According to the invention, this problem is solved by a detergent having the features of patent claim 1 and a method for dosing a detergent having the features of claim 12. Advantageous embodiments and modifications of the invention will become apparent from the respective dependent claims.

Due to the fact that the detergent according to claim 1 contains only two components, on the one hand, the constructive and structural complexity (for example in washing machines) for metering these components is limited. On the other hand, even when using only two components, a significantly better cleaning performance can be achieved compared to the use of a liquid detergent containing the ingredients in only one component.

The term "component" is used in the context of the present invention to describe the different, separate phases of the detergent, wherein each "component" contains at least one, preferably several ingredients, which serve the cleaning performance of the detergent. The "components" of the detergent together provide the efficiently effective composition of the detergent.

The term "booster" describes the second component of the detergent which is added to enhance the cleaning performance of the detergent in the washing process. The "booster" preferably contains ingredients that would either negatively impact or be affected by these when stored with ingredients of the first component of the detergent, or ingredients that suitably enter the wash liquor at a later time during the wash delivered as the ingredients of the first component. By separating the ingredients and dividing it into two components, the washing performance is improved compared to using the ingredients at the same time or eliminating some ingredients.

Due to the separate storage and merging only in the washing machine, now in liquid detergents acting in the wash liquor combination of active substances can take place, which could not be combined with each other. In the case of liquid detergents, incompatible components, such as, for example, bleaches and enzymes, can also interact with one another during washing without first having to be mixed with one another during storage and transport.

When selecting the ingredients, special attention must be paid to compatibility with each other and solubility.

By selecting the liquid detergent as the first component and the booster as the second component, two highly effective components are combined with each other directly in the washing process, which previously did not come into contact with each other, they would not be combined with each other without the disadvantages described above. Thus, as a result, even with liquid detergents can be achieved comparable with powder detergents cleaning performance.

It has even been shown that in order to achieve this comparable cleaning performance using the second component only 2/3 of the liquid detergent amount (component 1) is required, compared to the use of a conventional liquid detergent with only one component.

A detergent according to the invention may comprise all ingredients customary in such agents, for example surfactants, builders, co-builders, bleaches, bleach activators and / or bleach catalysts, soil repellents, alkaline salts and foam inhibitors, complexing agents, sequestering agents, enzyme stabilizers, dye transfer inhibitors, grayness inhibitors, optical brighteners and UV stabilizers. Absorbents, thickeners, dyes and fragrances or the like include, but are not limited to.

According to the invention it is preferred that the ingredients are not all present together in one component, but are divided according to their compatibility with each other and / or according to their contribution to the cleaning performance of the two detergent components. In this case it is preferred that component 1 comprises at least one anionic surfactant (s), preferably at least one nonionic surfactant (s), preferably at least one organic solvent and less than 5% by weight Contains builders. In addition, component 1 may contain at least one of the following ingredients: bleach activators and / or bleach catalysts, enzymes, dye transfer inhibitors and fatty and oil solvents. On the other hand, a larger amount of builders and co-builders, complexing agents, optical brighteners, bleaching agents, complexing and / or sequestering agents and optionally an additional proportion of surfactants (also preferably nonionic and optionally anionic surfactants) preferably contains the second component which acts as a booster serves. According to the invention, the booster contains a water softener and a bleach, but the booster does not have to contain all of the other ingredients mentioned, but rather, further ingredients of the booster may be selected from those mentioned. It is particularly preferable for the following ingredients to be separated from one another: enzymes should be separated from bleaches, therefore the enzymes are preferably used in component 1, bleaches in component 2. Optical brighteners should be separated from color transfer inhibitors, therefore, the color transfer inhibitors are preferably used in component 1, the optical brightener preferably in component 2.

At least component 1 of the detergent is in the form of a liquid. This component contains surfactants selected from anionic, nonionic, cationic and amphoteric surfactants, wherein component 1 contains at least one anionic surfactant (s) and the presence of anionic and nonionic surfactants is preferred.

Surfactants of the sulfonate type, alk (en) ylsulfates, alkoxylated alk (en) ylsulfates, ester sulfonates and / or soaps are preferably used as anionic surfactants.

As surfactants of the sulfonate type are preferably C ₉ -C ₁₃ alkylbenzenesulfonates, olefinsulfonates, ie mixtures of alkene and Hydroxyalkansulfonaten and disulfonates, such as those from C ₁₂ -C ₁₈ monoolefins having terminal or internal double bond by sulfonation with gaseous Sulfur trioxide and subsequent alkaline or acidic hydrolysis of the sulfonation obtained.

Alk (en) ylsulfates are the alkali metal salts and, in particular, the sodium salts of the sulfuric monoesters of C ₁₀ -C ₁₈ fatty alcohols, for example of coconut fatty alcohol, tallow fatty alcohol, lauryl, myristyl, cetyl or stearyl alcohol or of C ₈ -C ₂₀ -oxo alcohols and those half-esters of secondary alcohols of this chain length are preferred. Also preferred are alk (en) ylsulfates of said chain length, which contain a synthetic, straight-chain alkyl radical produced on a petrochemical basis. Of washing-technical interest, C ₁₂ -C ₁₆ -alkyl sulfates and C ₁₂ -C ₁₅ -alkyl sulfates and C ₁₄ -C ₁₅ -alkyl sulfates and C ₁₄ -C ₁₆ -alkyl sulfates are particularly preferred. 2,3-Alkyl sulfates, which can be obtained, for example, as commercial products of the Shell Oil Company under the name DAN®, are suitable anionic surfactants.

Also, the sulfuric acid monoesters of the straight-chain or branched C ₇ -C ₂₁ -alcohols ethoxylated with 1 to 6 mol of ethylene oxide, such as 2-methyl-branched C ₉ -C ₁₁ -alcohols having on average 3.5 mol of ethylene oxide (EO) or C ₁₂ -C ₁₈ Fatty alcohols containing 1 to 4 EO are suitable. Due to their high foaming behavior, they are usually used in detergents only in relatively small amounts, for example in amounts of from 0 to 5% by weight.

Also suitable are the esters of α-sulfo fatty acids (ester sulfonates), e.g. the α-sulfonated methyl esters of hydrogenated coconut, palm kernel or tallow fatty acids.

As further anionic surfactants are particularly soaps into consideration. Particularly suitable are saturated 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 from natural fatty acids, eg. Coconut, palm kernel or tallow fatty acids, derived soap mixtures. In particular, those soap mixtures are preferred which are composed of 50 to 100 wt .-% of saturated C ₁₂ -C ₂₄ fatty acid soaps and 0 to 50% by weight of Olsäureseife.

Another class of anionic surfactants is the class of ether carboxylic acids obtainable by the reaction of fatty alcohol ethoxylates with sodium chloroacetate in the presence of basic catalysts. They have the general formula: RO- (CH ₂ -CH ₂ -O) _p -CH ₂ -COOH with R = C ₁ -C ₁₈ and p = 0.1 to 20. Ethercarboxylic acids are water hardness insensitive and have excellent surfactant properties.

The anionic surfactants are preferably present in an amount of from 10% by weight to 60% by weight, preferably from 12.5% by weight to 50% by weight and particularly preferably from 15 to 50% by weight, in particular of 15 to 30 wt .-% in the first component before.

The nonionic surfactants used are preferably alkoxylated and / or propoxylated, in particular primary, alcohols having preferably 8 to 18 C atoms and on average 1 to 12 moles of ethylene oxide (EO) and / or 1 to 10 moles of propylene oxide (PO) per mole of alcohol. Particular preference is given to C ₈ -C ₁₆ -alcohol alkoxylates, advantageously ethoxylated and / or propoxylated C ₁₀ -C ₁₅ -alcohol alkoxylates, in particular C ₁₂ -C ₁₄ -alcohol alkoxylates, having a degree of ethoxylation of between 2 and 10, preferably between 3 and 8, and / or a degree of propoxylation between 1 and 6, preferably between 1.5 and 5. The stated degrees of ethoxylation and propoxylation represent statistical averages, which may be an integer or a fractional number for a particular product. Preferred alcohol ethoxylates and propoxylates have a narrow homolog distribution (narrow range ethoxylates / propoxylates, NRE / NRP). In addition to these nonionic surfactants, fatty alcohols with more than 12 EO can also be used. Examples include (tallow) fatty alcohols with 14 EO, 16 EO, 20 EO, 25 EO, 30 EO or 40 EO.

In addition, as further nonionic surfactants and alkyl glycosides of the general formula RO (G) _x , z. B. as compounds, especially with anionic surfactants, are used, in which R is a primary straight-chain or methyl-branched, especially in the 2-position methyl-branched aliphatic radical having 8 to 22, preferably 12 to 18 carbon atoms and G is the symbol that represents a glycose unit having 5 or 6 C atoms, preferably glucose. The degree of oligomerization x, which indicates the distribution of monoglycosides and oligoglycosides, is any number between 1 and 10; preferably x is 1.1 to 1.4. An example of a suitable alkyl polyglucoside is Lutensol GD 70 from BASF.

Another class of preferred nonionic surfactants used either as the sole nonionic surfactant or in combination with other nonionic surfactants, in particular together with alkoxylated fatty alcohols and / or alkyl glycosides, are alkoxylated, preferably ethoxylated or ethoxylated and propoxylated fatty acid alkyl esters, preferably from 1 to 4 carbon atoms in the alkyl chain, especially fatty acid methyl ester. Particularly preferred are C ₁₂ -C ₁₈ fatty acid methyl esters having an average of 3 to 15 EO, in particular having an average of 5 to 12 EO.

Nonionic surfactants of the amine oxide type, for example N-cocoalkyl-N, N-dimethyl-amine oxide and N-tallow alkyl-N, N-dihydroxyethylamine oxide, and the fatty acid alkanolamides may also be suitable. The amount of these nonionic surfactants is preferably not more than that of the ethoxylated fatty alcohols, especially not more than half thereof.

Cationic surfactants contain the surface activity of the high molecular weight hydrophobic residue upon dissociation in aqueous solution in the cation. The most important representatives of the cationic surfactants are the quaternary ammonium compounds of the general formula: (R ¹ R ² R ³ R ⁴ N ⁺ ) X ^- . Here, R _{1 is} C ₁ -C ₈ -alk (en) yl, R ² to R ⁴ independently of one another are C _n H _{2n + 1-px-} (Y ¹ CO) R ⁵ ) _p - (Y ² H) _x , where n stands for integers without 0 and p and x stand for integers or 0. Y ¹ and Y ² are each independently O, N or NH. R ⁵ denotes a C ₃ -C ₂₃ -alk (en) yl chain. X is a counterion, which is preferably selected from the group of alkyl sulfates and alkyl carbonates. Particularly preferred are cationic surfactants in which the nitrogen group is substituted with two-long acyl and two short alk (en) yl radicals.

Amphoteric or ampholytic surfactants have several functional groups that can ionize in aqueous solution and thereby - depending on the conditions of the medium - give the compounds anionic or cationic character. Near the isoelectric point, the amphoteric surfactants form internal salts, rendering them difficult or insoluble in water. Amphoteric surfactants are subdivided into ampholytes and betaines, the latter being present in solution as zwitterions. Ampholytes are amphoteric electrolytes, ie, compounds that have both acidic and basic hydrophilic groups and thus behave acidic or basic depending on the condition. Betaines are compounds with the atomic group R ₃ N ⁺ -CH ₂ -COO ^- which show typical properties of zwitterions.

Other suitable surfactants are so-called gemini surfactants. These are generally understood as meaning those compounds which have two hydrophilic groups and two hydrophobic groups per molecule. These groups are usually separated by a so-called "spacer". This spacer is typically a carbon chain that should be long enough for the hydrophilic groups to be spaced sufficiently apart for them to act independently of each other. Such surfactants are generally characterized by an unusually low critical micelle concentration and the ability to greatly reduce the surface tension of the water. In exceptional cases, however, the term gemini surfactants is understood to mean not only dimeric but also trimeric surfactants.

Suitable gemini surfactants are, for example, sulfated hydroxy mixed ethers or dimer alcohol bis- and trimer tris sulfates and ether sulfates. End-capped dimeric and trimeric mixed ethers are characterized in particular by their bi- and multi-functionality. Thus, the end-capped surfactants mentioned have good wetting properties and are low foaming, so that they are particularly suitable for use in machine washing or cleaning processes. However, it is also possible to use gemini-polyhydroxy fatty acid amides or poly-polyhydroxy fatty acid amides.

The total amount of surfactants present in component 1 according to the invention is preferably 1% by weight to 75% by weight, preferably 10% by weight to 60% by weight, and particularly preferably 20% by weight to 55% by weight. %. Preference is given to using mixtures of anionic and nonionic surfactants. It is preferred that the anionic surfactants in an amount of 10 wt .-% to 60 wt .-%, preferably from 15 wt .-% to 55 wt .-% and particularly preferably from 20 to 50 wt .-%, in particular from 25 to 40 wt .-% are used or the nonionic surfactants in an amount of 1 to 25 wt .-%, preferably 2.5 wt .-% to 20 wt .-%, particularly preferably from 5 wt .-% to 15% by weight.

Surfactants are also preferably used in component 2. Here too, it is possible to select from anionic, nonionic or amphoteric surfactants, preference being given to using (at least) nonionic surfactants and, if appropriate, anionic and / or amphoteric surfactants in the booster component. The amount of surfactants used in component 2 is according to the invention 0.2 to 15 wt .-%, preferably 0.5 to 10 wt .-% and more preferably 1 to 5 wt .-%.

Suitable enzymes are, in particular, those from the class of the hydrolases, such as the proteases, esterases, lipases or lipolytic enzymes, amylases, cellulases or other glycosyl hydrolases and mixtures of the enzymes mentioned. All these Hydrolases in the wash contribute to the removal of stains such as proteinaceous, greasy or starchy stains, and graying. Cellulases and other glycosyl hydrolases can contribute to color retention and increase the softness of the fabric by removing pilling and microfibrils. It is also possible to use oxidoreductases for bleaching or inhibiting color transfer.

Enzymes derived from bacterial strains or fungi, such as Bacillus subtilis, Bacillus licheniformis, Streptomyces griseus and Humicola insolens, are particularly well-suited enzymatic agents. Preferably, subtilisin-type proteases and in particular proteases derived from Bacillus lentus are used. In this case, enzyme mixtures, for example from protease and amylase or protease and lipase or lipolytic enzymes or protease and cellulase or from cellulase and lipase or lipolytic enzymes or from protease, amylase and lipase or lipolytic enzymes or protease, lipase or lipolytic enzymes and cellulase, but in particular protease and / or lipase-containing mixtures or mixtures with lipolytic enzymes of particular interest. Examples of such lipolytic enzymes are the known cutinases. Peroxidases or oxidases have also proved suitable in some cases. Suitable amylases include in particular a-amylases, iso-amylases, pullulanases and pectinases. The cellulases used are preferably cellobiohydrolases, endoglucanases and beta-glucosidases, which are also cellobiases, or mixtures of these. Since the different cellulase types differ by their CMCase and avicelase activities, targeted mixtures of the cellulases can be used to set the desired activities.

The proportion of enzymes or enzyme mixtures in the total detergent composition (both components) may be, for example, about 0.1 to 5 wt .-%, preferably 0.1 to about 3 wt .-%, wherein the enzymes are preferred only in the first component be used in these quantities.

Builders are substances which are capable of binding or complexing certain substances, in particular ions present in the wash liquor. In particular, Ca ²⁺ ions present in the water and Mg ²⁺ ions are bound so that the builders simultaneously serve as water softeners.

As a builder, for example, fine crystalline, synthetic and bound water-containing zeolite can be used, preferably zeolite A and / or P. As zeolite P For example, zeolite MAP ^(R) (commercial product from Crosfield) is particularly preferred. However, zeolite X and mixtures of A, X and / or P are also suitable. Of particular interest is also a cocrystallized sodium / potassium aluminosilicate of zeolite A and zeolite X, which is described as VEGOBOND AX ^(R) (commercial product from Condea) in US Pat Trade is available. The zeolite may preferably be used as a spray-dried powder. In the case where the zeolite is used as a suspension, it may contain minor additions of nonionic surfactants as stabilizers, for example from 1 to 3% by weight, based on zeolite, of ethoxylated C ₁₂ -C ₁₈ fatty alcohols containing 2 to 5 ethylene oxide groups, C ₁₂ -C ₁₄ fatty alcohols containing 4 to 5 ethylene oxide groups or ethoxylated isotridecanols. Suitable zeolites have an average particle size of less than 10 μm (volume distribution, measuring method: Coulter Counter) and preferably contain 18 to 22% by weight, in particular 20 to 22% by weight, of bound water. In addition, phosphates can also be used as builders.

Suitable substitutes or partial substitutes for phosphates and zeolites are crystalline, layered sodium silicates of the general formula NaMSi _x O _{2x + 1} y H ₂ O, where M is sodium or hydrogen, x is a number from 1.9 to 4 and y is a number from 0 is up to 20 and preferred values for x are 2, 3 or 4. Preferred crystalline layered silicates of the formula given are those in which M is sodium and x assumes the values 2 or 3. In particular, both beta and d-sodium disilicates Na ₂ Si ₂ O ₅ y H ₂ O are preferred.

The preferred builder substances also include amorphous sodium silicates with a Na ₂ O: SiO ₂ modulus of from 1: 2 to 1: 3.3, preferably from 1: 2 to 1: 2.8 and in particular from 1: 2 to 1: 2, 6, which are delay-delayed and have secondary washing properties. The dissolution delay compared to conventional amorphous sodium silicates may have been caused in various ways, for example by surface treatment, compounding, compaction / densification or by overdrying. In the context of this invention, the term "amorphous" is also understood to mean "X-ray amorphous". This means that in X-ray diffraction experiments the silicates do not give sharp X-ray reflections typical of crystalline substances, but at most one or more maxima of the scattered X-rays which are several angstroms in width of the diffraction angle. However, it may well even lead to particularly good builder properties if the silicate particles provide blurred or even sharp diffraction maxima in electron diffraction experiments. This is to be interpreted as meaning that the products have microcrystalline areas of size 10 to a few hundred nm, with values of up to max. 50 nm and in particular up to max. 20 nm are preferred. Especially preferred are densified / compacted amorphous silicates, compounded amorphous silicates and overdried X-ray amorphous silicates.

Other suitable builders are water-soluble polymers, for example polymeric polycarboxylates, for example the alkali metal salts of polyacrylic acid or of polymethacrylic acid, for example those having a relative molecular weight of 500 to 70,000 g / mol.

The molecular weights given for polymeric polycarboxylates are weight-average molar masses M _{w of} the particular acid form, which were determined in principle by means of gel permeation chromatography (GPC) using a UV detector. The measurement was carried out against an external polyacrylic acid standard, which provides realistic molecular weight values due to its structural relationship with the polymers investigated. These data differ significantly from the molecular weight data, in which polystyrene sulfonic acids are used as standard. The molar masses measured against polystyrenesulfonic acids are generally significantly higher than the molecular weights specified in this document.

Polymers suitable as builders are, in particular, polyacrylates, which preferably have a molecular weight of 2,000 to 20,000 g / mol. Because of their superior solubility, the short-chain polyacrylates, which have molecular weights of from 2,000 to 10,000 g / mol, and particularly preferably from 3,000 to 5,000 g / mol, may again be preferred from this group. Examples of suitable polyacrylates are those of the Sokalan® series from BASF; For example, Sokalan CP10 and Sokalan PA25 Cl, without being limited to these.

Suitable polymers may also include substances consisting partly or wholly of units of vinyl alcohol or its derivatives.

Also suitable as builders are copolymeric polycarboxylates, in particular those of acrylic acid with methacrylic acid and of acrylic acid or methacrylic acid with maleic acid. Copolymers of acrylic acid with maleic acid which contain 50 to 90% by weight of acrylic acid and 50 to 10% by weight of maleic acid have proven to be particularly suitable. Their relative molecular weight, based on free acids, is generally from 2,000 to 70,000 g / mol, preferably from 20,000 to 50,000 g / mol and in particular from 30,000 to 40,000 g / mol.

To improve the water solubility, the polymers may also contain allylsulfonic acids such as allyloxybenzenesulfonic acid and methallylsulfonic acid as a monomer.

Also particularly preferred are biodegradable polymers of more than two different monomer units, for example those containing as monomers salts of acrylic acid and maleic acid and vinyl alcohol or vinyl alcohol derivatives or as monomers salts of acrylic acid and 2-alkylallylsulfonic acid and sugar derivatives.

Further copolymers suitable as builders are those which have, for example, acrolein and acrylic acid / acrylic acid salts or acrolein and vinyl acetate as monomers.

The polymers mentioned so far are used in the detergents according to the invention as preferred builder components (water softeners).

Further suitable builder substances are polyacetals which can be obtained by reacting dialdehydes with polyolcarboxylic acids which have 5 to 7 C atoms and at least 3 hydroxyl groups. Preferred polyacetals are obtained from dialdehydes such as glyoxal, glutaraldehyde, terephthalaldehyde and mixtures thereof and from polyol carboxylic acids such as gluconic acid and / or glucoheptonic acid.

Further suitable organic builder substances are dextrins, for example oligomers or polymers of carbohydrates, which can be obtained by partial hydrolysis of starches. The hydrolysis can be carried out by customary, for example acid or enzyme catalyzed processes. Preferably, it is hydrolysis products having average molecular weights in the range of 400 to 500 000 g / mol. In this case, a polysaccharide with a dextrose equivalent (DE) in the range of 0.5 to 40, in particular 2 to 30 is preferred, DE being a common measure of the reducing action of a polysaccharide compared to dextrose, which has a DE of 100 , is. Usable are both maltodextrins with a DE between 3 and 20 and dry glucose syrups with a DE between 20 and 37 and also so-called yellow dextrins and white dextrins with higher molecular weights in the range from 2,000 to 30,000 g / mol.

The oxidized derivatives of such dextrins are their reaction products with oxidizing agents which are capable of oxidizing at least one alcohol function of the saccharide ring to the carboxylic acid function. These are products oxidized at C ₆ and / or with ring opening at C ₂ / C _{3 of} the saccharide ring. A product oxidized to C _{6 of} the saccharide ring may be particularly advantageous.

Oxydisuccinates and other derivatives of disuccinates, preferably ethylenediamine disuccinate, are other suitable co-builders. This is ethylenediamine-N, N'-disuccinate (EDDS) preferably used in the form of its sodium or magnesium salts. Also preferred in this context are glycerol disuccinates and glycerol trisuccinates. Suitable amounts are in zeolithhaltigen and / or silicate-containing formulations at 3 to 15 wt .-%.

Other useful organic cobuilders are, for example, acetylated hydroxycarboxylic acids or their salts, which may optionally also be present in lactone form and which contain at least 4 carbon atoms and at least one hydroxyl group and a maximum of two acid groups.

The builders are used in the first component according to the invention in small amounts, preferably in amounts of less than 10 wt .-%, more preferably less than 5 wt .-%, even more preferably less than 2.5 wt .-%, in particular less than 1% by weight. In a particularly preferred embodiment, the component 1 contains no builder. By contrast, builders are preferably used in the booster component (component 2), in amounts of from 1 to 40% by weight, preferably in amounts of from 2.5 to 35% by weight, particularly preferably in amounts of from 5 to 25 wt .-%. In the presence of a bleaching agent in the booster component, the builder level may still be somewhat reduced so that in the presence of a bleach, the preferred amount of builder in component 2 is from 5 to 20% by weight. Particularly preferred builders in the booster component are the abovementioned water-soluble polymers.

Sequestrants keep mineral salts in solution, thereby preventing their precipitation from mineral salt-containing solutions. Therefore, the abovementioned builders, in particular the polymeric builders, are suitable as sequestering agents, as well as the complexing agents described below. Phosphonates are also used as suitable sequestering agents, for example 1-hydroxyethane-1,1-diphosphonic acid (HEDP), amino-tris (methylenephosphonic acid) (ATMP), ethylenediamine-tetra (methylenephosphonic acid) (EDTMP), diethylenetriaminepenta (methylenephosphonic acid) (DTPMP ), Hexamethylenediamine tetra (methylenephosphonic acid) (HDTMP), hydroxyethylamino-di (methylenephosphonic acid) (HEMPA), bis (hexamethylene) triamine penta (methylenephosphonic acid) or their respective salts, 2-phosphonobutane-1,2, 4-tricarboxylic acid (PBTC), 2-phosphonobutane-1,2,4-tricarboxylic acid or their respective salts or ethane hydroxy-1,1,2-triphosphonate, without being limited thereto. Sequestrants of this type are available on the market, for example, from Zschimmer and Schwarz, Burgstädt, Germany.

Suitable complexing agents are all agents known as such, in particular aminocarboxylates, (poly) phosphates, dicarboxylic acids or hydroxy acids can be used. Among the aminocarboxylates, methylglycine diacetic acid (MGDA, available as, for example, Trilon® M from BASF), IDA (nitrilotriacetic acid), EDTA (ethylenediaminetetraacetic acid), EGTA (ethylene glycol tetraacetic acid), and iminodisuccinate tetrasodium salt are preferred, as well as triethanolamine, without these to be limited.

Organic substances which are useful as complexing agents are, for example, the polycarboxylic acids or hydroxy acids which can be used in the form of their sodium salts, polycarboxylic acids meaning those carboxylic acids which carry more than one acid function. These are, for example, the salts of citric acid, lactic acid, adipic acid, succinic acid, oxalic acid, glutaric acid, malic acid, tartaric acid, maleic acid, fumaric acid, sugar acids, aminocarboxylic acids, nitrilotriacetic acid (NTA) and their derivatives (derivatives) and mixtures thereof. Preferred salts are the salts of polycarboxylic acids such as citric acid, adipic acid, succinic acid, glutaric acid, tartaric acid, sugar acids and mixtures thereof.

The acids themselves can also be used. In addition to their complexing action, the acids typically also have the property of an acidifying component and thus also serve to set a lower and milder pH of detergents or cleaners. In particular, citric acid, lactic acid, succinic acid, glutaric acid, adipic acid, gluconic acid and any desired mixtures of these can be mentioned here. Further useable acidulants are known pH regulators such as sodium bicarbonate, sodium hydrogen sulfate.

Also complexing agents of the BayPure® series from Bayer Ag, Germany can be suitable complexing agents.

The complexing agents are also used in the first component according to the invention in small amounts, preferably in amounts of less than 5 wt .-%, more preferably less than 2.5 wt .-%, even more preferably less than 1 wt .-% , In a particularly preferred embodiment, the component 1 contains no complexing agent. On the other hand, in the booster component (component 2), preference is given to using complexing agents, in amounts of from 1 to 40% by weight, preferably in amounts of from 2.5 to 35% by weight, particularly preferably in amounts of from 5 to 25 wt .-%. Due to the presence of a bleaching agent in the booster component, the amount of complexing agent can still be reduced somewhat, so that in the presence of a bleaching agent, the preferred Complexing agent amount in component 2 at 5 to 20 wt .-% is. Particularly preferred complexing agents are the aforementioned aminocarboxylates.

Among the compounds serving as bleaches in water H ₂ O ₂ , sodium percarbonate, sodium perborate tetrahydrate and sodium perborate monohydrate are of particular importance. Other useful bleaching agents are, for example, peroxypyrophosphates, citrate perhydrates and H ₂ O ₂ -forming peracidic salts or peracids, such as perbenzoates, peroxophthalates, diperazelaic acid, phthaloiminoperacid or diperdodecanedioic acid. Also, bleaching agents from the group of organic bleaching agents can be used. Typical organic bleaches are the diacyl peroxides such as dibenzoyl peroxide. Other typical organic bleaches are the peroxyacids, examples of which include the alkyl peroxyacids and the aryl peroxyacids. Preferred representatives are (a) the peroxybenzoic acid and its ring-substituted derivatives, such as alkylperoxybenzoic acids, but also peroxy-alpha-naphthoic acid and magnesium monoperphthalate, (b) the aliphatic or substituted aliphatic peroxyacids, such as peroxylauric acid, peroxystearic acid, epsilon-phthalimidoperoxycaproic acid [phthaloiminoperoxyhexanoic acid (PAP)] , o-carboxybenzamidoperoxycaproic acid, N-nonenylamidoperadipic acid and N-nonenylamidopersuccinate, and (c) aliphatic and araliphatic peroxydicarboxylic acids, such as 1,12-diperoxycarboxylic acid, 1,9-diperoxyazelaic acid, diperoxysebacic acid, diperoxybrassic acid, the diperoxyphthalic acids, 2-decyldiperoxybutan-1,4-diene diacid, N, N-terephthaloyl-di (6-aminopercaproic acid) can be used.

Particularly preferred bleaching agents according to the present invention are those which generate H ₂ O ₂ , or else the H ₂ O ₂ itself. Also preferred bleaching agents are phthalimido-peroxo-carpronic acid (PAP), sodium nonanonyloxybenzenesulfonate (NOBS) and sodium 4-. (2-decanoyloxyethoxycarbonyloxy) benzenesulfonate (DECOBS) and the decanoyloxybenzoic acid (DOBA) or Dioxyrane.

Chlorine or bromine releasing substances can also be used as the bleaching agent, but are not preferred. Among the suitable chlorine or bromine releasing materials are, for example, heterocyclic N-bromo- and N-chloroamides, for example trichloroisocyanuric acid, tribromoisocyanuric acid, dibromoisocyanuric acid and / or dichloroisocyanuric acid (DICA) and / or their salts with cations such as potassium and sodium into consideration. Hydantoin compounds such as 1,3-dichloro-5,5-dimethylhydantoin are also suitable.

The content of bleaching agent in the bleach-containing component is preferably from 1 to 40% by weight, preferably from 2 to 20% by weight and in particular from 3 to 15% by weight, particular preference being given to perborate monohydrate and / or percarbonate or directly to H ₂ O _{2 is} used. If H ₂ O _{2 is to} be used directly, it is preferred to use 5 to 10% by weight, particularly preferably 6 to 8% by weight thereof.

As bleach activators, it is possible to use compounds which, under perhydrolysis conditions, give aliphatic peroxycarboxylic acids having preferably 1 to 10 C atoms, in particular 2 to 4 C atoms, and / or optionally substituted perbenzoic acid. Suitable substances are those which carry O- and / or N-acyl groups of the stated carbon atom number and / or optionally substituted benzoyl groups, such as substances from the class of the anhydrides, the esters, the imides and the acylated imidazoles or oximes. Preference is given to polyacylated alkylenediamines, in particular tetraacetylethylenediamine (TAED), tetraacetylmethylenediamine TAMD and tetraacetylhexylenediamine TAHD, but also pentaacetylglucose PAG, 1,5-diacetyl-2,2-dioxo-hexa-hydro-1,3,5-triazine DADHT and isatoic anhydride ISA , acylated triazine derivatives, in particular 1,5-diacetyl-2,4-dioxohexahydro-1,3,5-triazine (DADHT), acylated glycolurils, in particular tetraacetylglycoluril (TAGU), N-acylimides, in particular N-nonanoylsuccinimide (NOSI), acylated Phenolsulfonate, in particular n-nonanoyl or Isononanoyloxybenzolsulfonat (n- or iso-NOBS), carboxylic anhydrides, especially phthalic anhydride, acylated polyhydric alcohols, especially triacetin, ethylene glycol diacetate and 2,5-diacetoxy-2,5-dihydrofuran, n-methyl-morpholinium Acetonitrile methylsulfate (MMA), and those of German patent applications DE 196 16 693 and DE 196 16 767 known enol esters and acetylated sorbitol and mannitol or mixtures thereof (SORMAN), acylated sugar derivatives, in particular pentaacetylglucose (PAG), pentaacetylfruktose, tetraacetylxylose and octaacetyllactose as well as acetylated, optionally N-alkylated glucamine and gluconolactone, and / or N-acylated lactams, for example N- benzoylcaprolactam. Hydrophilic substituted acyl acetals and acyl lactams are also preferably used. Combinations of conventional bleach activators can also be used.

Particularly preferred bleach activators are TAED, acetylcaprolactam (available as Peractive LAC), or photocatalysts that use atmospheric oxygen.

In addition to the conventional bleach activators or in their place, so-called bleach catalysts can also be used. These substances are bleach-enhancing transition metal salts or transition metal complexes such as Mn, Fe, Co, Ru or Mo shell complexes or - carbonyl complexes. Also Mn, Fe, Co, Ru, Mo, Ti, V and Cu complexes with N-containing tripod ligands and Co, Fe, Cu and Ru amine complexes are useful as bleach catalysts. Among these are the manganese III catalysts, in particular manganese salts, manganese-triazacyclononane complexes, manganese Schiff base complexes, manganese cross-bridged macrocyclic complexes, manganese complexes with 2,2 ': 6,2 "terpyrids and manganese complexes with polypyridinamine complexes. Ligands; iron catalysts, in particular Fe complexes with pentadentate nitrogen donor ligands and those with macrocyclic tetraamidate ligands; cobalt-based catalysts for H ₂ O ₂ activation, in particular cobalt-pentaamine complexes and cobalt complexes with polypyridinamine ligands prefers.

The bleach catalysts are usually added in amounts of up to 5% by weight, in particular from 0.0025% by weight to 1% by weight and particularly preferably from 0.01% by weight to 0.25% by weight, each based on the total agent used. The bleach activator can be used as needed, preferably in amounts of 0.05 to 15 wt .-%.

In a preferred embodiment, the first component, in particular 1 to 10 wt .-% bleach activator or 0.01 to 2 weight percent of a bleach catalyst.

By a bleach activator or by bleach catalysts in the first component, the cleaning performance can be significantly increased again.

As Farbübertragungsinhitor any known substance can be used. These are, for example, polyvinylpyrrolidone (PVP), polyvinylimidazoles (PVI), copolymers of vinylpyrrolidone and vinylimidazole (PVP / PVI), polyvinylpyridine N-oxides, poly-N-carboxymethyl-4-vinylpyridiumchloride and mixtures thereof. A particularly preferred color transfer inhibitor is a vinylpyrrolidone-vinylimidazole copolymer, for example Sokalan® HP 56 from BASF.

It is also known that Fettalkyldialkylhydroxyethylammonium salts have a dye transfer inhibiting effect in detergents or cleaners.

Preferably, the fatty alkyl dialkyl hydroxyethyl ammonium salt is a fatty alkyl dimethyl hydroxyethyl ammonium salt, preferably a C ₁₂ -C ₁₈ fatty alkyl dimethyl hydroxyethyl ammonium salt. It is particularly preferred that the fatty alkyldimethylhydroxyethylammonium salt is C ₁₂ -C ₁₄ fatty alkyldimethylhydroxyethylammonium chloride. As counterions, the salts may halide, methosulfate, methophosphate or phosphate ions and mixtures thereof. Preferably, the counterion is chloride.

An example of a commercially available fatty alkyldimethylhydroxyethylammonium salt is Praepagen® HY (ex Clariant), a C ₁₂ / C ₁₄ fatty alkyldimethylhydroxyethylammonium chloride.

These fatty alkyl dialkylhydroxyethyl ammonium salts are particularly effective color transfer inhibitors.

The mentioned fatty alkyl dialkylhydroxyethylammonium salts can also be used in combination with at least one second dye transfer inhibitor.

The Fettalkyldialkylhydroxyethylammonium salts are preferably with at least one of the above polyvinylpyrrolidone (PVP), polyvinylimidazoles (PVI), copolymers of vinylpyrrolidone and vinylimidazole (PVP / PVI), polyvinylpyridine N-oxides, poly-N-carboxymethyl-4-vinylpyridiumchloride and Blends of it combined.

These color transfer inhibitors are known and commercially available (co) polymers which can be incorporated well and stably into detergents or cleaners.

The amount of dye transfer inhibitor in the washing or cleaning agent may be between 0.001 and 10 wt .-% based on the total mean, but is preferably used in component 1. Preferably, the amount of color transfer inhibitor in component 1 is between 0.01 and 5 wt .-% and particularly preferably between 0.1 and 2 wt .-% (active ingredient).

Grayness inhibitors have the task of keeping the dirt detached from the fiber suspended in the liquor and thus preventing the dirt from being rebuilt. Water-soluble colloids of mostly organic nature are suitable for this purpose, for example the water-soluble salts of (co) polymeric carboxylic acids, glue, gelatin, salts of ethercarboxylic acids or ether sulfonic acids of starch or of cellulose or salts of acidic sulfuric acid esters of cellulose or starch. Also, water-soluble polyamides containing acidic groups are suitable for this purpose. Furthermore, soluble starch preparations and other than the above-mentioned starch products can be used, for. Degraded starch, aldehyde levels, etc. Also, polyvinylpyrrolidone is useful. However, preference is given to using cellulose ethers, such as carboxymethylcellulose (Na salt), methylcellulose, hydroxyalkylcellulose and mixed ethers, such as methylhydroxyethylcellulose, methylhydroxypropylcellulose, methylcarboxymethylcellulose and mixtures thereof, and also polyvinylpyrrolidone. The grayness inhibitors are used, for example, in amounts of from 0.1 to 5% by weight, based on the total amount of the detergents.

The used as a booster component 2 of the detergent according to the invention can optical brighteners such. B. derivatives of Diaminostilbendisulfonsäure or their alkali metal salts. Suitable z. B. salts of 4,4'-bis (2-anilino-4-morpholino-1,3,5-triazinyl-6-amino) stilbene-2,2'-disulfonic acid or compounds of similar structure, instead of the morpholino group a diethanolamino group, a methylamino group, an anilino group or a 2-methoxyethylamino group. Suitable stilbene derivatives include derivatives of bis (triazinyl) -aminostilbene, stilbene bisacylamino derivatives, stilbene triazole derivatives, stilbene oxadiazole derivatives, oxazole derivatives of stilbene, and stilbene sstyryl derivatives. Furthermore, brighteners of the substituted diphenylstyrene type may be present, e.g. the alkali salts of 4,4'-bis (2-sulfostyryl) -diphenyl, 4,4'-bis (4-chloro-3-sulfostyryl) -diphenyl, or 4- (4-chlorostyryl) -4 '- (2- sulfostyryl). A particularly preferred optical brightener is the disodium 2,2 '- ((1,1'-biphenyl) -4,4'-diyl divinylene) bis (benzenesulfonate) sold as Tinopal CBS-X® by BASF. Also, the optical brightener Tinopal CBS-CL, Tinopal 5 BM-GX and Tinopal AMS-GX are suitable derivatives of Diphenylstyryle. Mixtures of the aforementioned brightener can be used.

The amount of optical brightener may be 0 to 3 wt .-% in component 2, preferably 0 to 2 wt .-%. If optical brightener is used, a proportion of 0.05 to 1.0 wt .-%, preferably 0.1 to 0.5, in particular 0.2 to 0.4 wt .-% (active ingredient) is preferred.

In a particularly preferred embodiment, the component 1 contains as color transfer inhibitor a vinylpyrrolidone-vinylimidazole copolymer and the component 2 as optical brightener, the disodium 2,2 '- ((1,1'-biphenyl) -4,4'-diyldivinylen) to (Benzenesulfonate), particularly preferably when additionally used as a bleaching agent H ₂ O ₂ or a H ₂ O ₂ generating agent.

In addition, UV absorbers can also be used. These are compounds with pronounced ultraviolet radiation absorptivity which contribute to improving the light fastness of dyes and pigments as well as textile fibers as light stabilizers (UV stabilizers) and also protect the wearer's skin from textile exposure to UV radiation. In general, the compounds which are active by radiationless deactivation are derivatives of benzophenone whose substituents, such as hydroxyl and / or alkoxy groups, are usually in the 2- and / or 4-position. Furthermore, substituted benzotriazoles are also suitable, furthermore in the 3-position phenyl-substituted acrylates (cinnamic acid derivatives), optionally with cyano groups in the 2-position, salicylates, organic nickel complexes and natural products such as umbelliferone and the body's own urocanic acid. In a preferred Embodiment absorb the UV absorber UV-A and UV-B radiation and optionally UV-C radiation and radiate back with wavelengths of blue light, so that they additionally have the effect of an optical brightener. Preferred UV absorbers are also triazine derivatives, eg. B. hydroxyaryl-1,3,5-triazine, sulfonated 1,3,5-triazine, o-hydroxyphenylbenzotriazole and 2-aryl-2H-benzotriazole and bis (anilinotriazinylamino) stilbene disulfonic acid and derivatives thereof. As UV absorbers, it is also possible to use pigments which absorb ultraviolet radiation, such as titanium dioxide.

In addition, the detergents may also contain components which positively influence the oil and Fettauswaschbarkeit from textiles, so-called soil repellents. This effect is particularly evident when a textile is dirty, which has been previously washed several times with a detergent according to the invention, which contains this oil and fat dissolving component. The preferred oil and fat dissolving components include, for example, nonionic cellulose ethers such as methylcellulose and methylhydroxypropylcellulose with a proportion of methoxyl groups from 15 to 30 wt .-% and hydroxypropoxyl groups from 1 to 15 wt.%, Based on the nonionic cellulose ethers, and from known polymers of phthalic acid and / or terephthalic acid or their derivatives, in particular polymers of ethylene terephthalates and / or polyethylene glycol terephthalates or anionic and / or nonionic modified derivatives of these. Particularly preferred of these are the sulfonated derivatives of phthalic and terephthalic acid polymers.

When used in automatic washing processes, it may be advantageous to add conventional foam inhibitors to the compositions. As foam inhibitors are, for example, soaps of natural or synthetic origin, which have a high proportion of C ₁₈ -C ₂₄ fatty acids. Suitable non-surfactant foam inhibitors are, for example, organopolysiloxanes and mixtures thereof with microfine, optionally silanized silica and paraffins, waxes, microcrystalline waxes and mixtures thereof with silanated silica or bistearylethylenediamide. It is also advantageous to use mixtures of different foam inhibitors, for example those of silicones, paraffins or waxes. The foam inhibitors are preferably used in the second component.

Liquid detergents according to the invention may, if desired, contain thickeners and anti-settling agents customary in at least one phase and also viscosity regulators such as polyacrylates, polycarboxylic acids, polysaccharides and their derivatives, polyurethanes, polyvinylpyrrolidones, castor oil derivatives, polyamine derivatives such as quaternized and / or ethoxylated hexamethylenediamines and any desired mixtures thereof.

The compositions may contain other typical detergent and cleaner components such as perfumes and / or dyes, preference being given to those dyes which have no or negligible coloring action on the textiles to be washed. Preferred quantitative ranges of the totality of the dyes used are below 1% by weight, preferably below 0.1% by weight, based on the agent. The agents may optionally also white pigments such. B. TiO ₂ included.

In the detergent according to the invention at least the component 1 is liquid. Preferably, the component 2 is a liquid, both liquids can be solutions or dispersions or emulsions. Both components are preferably solutions of the stated ingredients. The viscosity of the two component liquids may be the same or different, depending on the desired application behavior. The liquid agents are preferably hydrous. In addition, they may also contain organic solvents, preferably those which are miscible with water.

Polydiols, ethers, alcohols, ketones, amides and / or esters, in amounts of up to 80% by weight, preferably 0.1 to 70% by weight, in particular 0.1, can preferably be used as organic solvents in the liquid agents according to the invention up to 60% by weight. Preference is given to low molecular weight polar substances, such as, for example, methanol, ethanol, propanol, propylene carbonate, acetone, acetonylacetone, diacetone alcohol, ethyl acetate, 2-ropanol, ethylene glycol, propylene glycol, glycerol, diethylene glycol, dipropylene glycol monomethyl ether and dimethylformamide or mixtures thereof.

Preferably, at least the component 1 contains a proportion of 1 to 20 wt .-% of at least one alcohol, preferably 2.5 wt .-% to 15 wt .-%, particularly preferably 5 to 15 wt .-%, wherein the alcohol be selected may be propylene glycol, methanol, ethanol and propanol, with propylene glycol or ethanol being preferred.

The pH of the component 1 of the liquid detergents according to the invention is preferably between 5 and 10, in particular between 6 and 9 and particularly preferred within the range from 7 to 8.5. If desired, water may be present in such agents according to the invention in amounts of up to 90% by weight, in particular 20% by weight to 75% by weight; if necessary, however, these areas can also be exceeded or fallen short of.

The pH of component 2 in the presence of a bleaching agent, in particular of H ₂ O ₂ as bleaching agent, is preferably in the range from pH 3 to pH 6, particularly preferably between pH 4.5 and 5.5.

Liquid agents may have densities of 0.5 to 2.0 g / cm ³ , in particular 0.7 to 1.5 g / cm ³ . If the liquid agent or one of the components of the liquid agent is to be provided as a dispersion, it is preferred that the density difference between the solid particles used in the components and the liquid phase of the agent is preferably not more than 10% of the density of one of the two, and especially is so small that the solid particles float in the liquid phase.

According to an advantageous embodiment, the liquid component 1 of the detergent contains at least 25 to 40% by weight of anionic surfactants and 5 to 15% by weight of nonionic surfactants and less than 5% by weight of builders and 5 to 15% by weight of alcohols.

The booster contains at least one ingredient from the group of water softeners, preferably complexing agents, sequestering agents and builders, with the use of builders water-soluble polymers are particularly preferred. According to an advantageous embodiment, the booster is based on builders and bleach. As a result, the cleaning performance can be further improved.

The booster contains according to the invention an optical brightener. As a result, light / white areas of the laundry are brightened even in the presence of other colors on the garments. The light / white areas are particularly bright. Particularly advantageous is the integration of an optical brightener by low-foam, nonionic surfactants in the booster. These surfactants also allow a foam control in the washing process. In addition, the choice of an anti-oxidant largely stable optical brightener is advantageous. Preferred optical brighteners to be used are mentioned above, with Tinopal CBS-X being a particularly preferred brightener.

According to the invention, the booster contains a bleaching agent, more preferably hydrogen peroxide (H ₂ O ₂ ) or a H ₂ O ₂ generating agent as a bleaching agent. This allows a significant increase in cleaning performance, especially bleachable stains achieve. In addition, it has been shown in washing experiments that when using H ₂ O ₂ as a bleaching agent in the booster substantially no color damage (discoloration, lighter lines, etc.) on colored textiles occur.

In this embodiment, the booster preferably has a pH of 3-6, preferably in the range of 4.5 to 5.5. Due to the acidic formulation, the Blecihmittel, in particular, if it is hydrogen peroxide or an H ₂ O ₂ is-generating agent, stabilized.

By providing the two components of the detergent in separate form, both the advantage of a color detergent and a full-strength detergent can be used and controlled at will by using different amounts of components, the washing result.

Component 1, by virtue of its composition, in particular in the presence of a dye transfer inhibitor, corresponds to a color washing agent which can be supplemented by the combination with component 2 to form a heavy-duty detergent, especially if component 2 comprises a bleaching agent and / or an optical brightener. Depending on the used mixing ratio of the two components thus the desired cleaning performance is set. At a mixing ratio of component 1 to component 2 (K1: K2) of 2: 1 to 10: 1, the total detergent is more like a color detergent, while at a mixing ratio of (K1: K2) less than 2: 1 to 1:10 the detergent is more likely corresponds to a heavy duty detergent.

The inventive method for metering a detergent with the aid of an automatic metering device for separate metering of various components of a detergent dosed in a first step to the first component of the detergent, and subsequently the second component of the detergent is metered in the same wash with a time interval.

For dosing of the individual components of the detergent, the washing machine on a metering device, whereby the individual components present separately from one another at a time interval can be added separately to the washing process.

Various tests have shown that the time interval between the metered addition of the two separate components has a considerable influence on the cleaning performance and thus on the washing result.

Preferably, the first component is added to start a wash cycle.

The second component is then preferably added within 45 minutes, more preferably within 20 to 40 minutes, and more preferably about 30 minutes after the metered addition of the first component. This time interval is particularly advantageous when the first component was added to start a wash cycle and a booster, the bleaching agent and a water softener, preferably at least one Complexing or sequestering agent is used, in acidic to neutral setting (pH 3 to 7) is used.

Figur 1

Darstellung der Reinigungsleistung mit einem ersten Booster in alkalischem Milieu (nicht erfindungsgemäß);

Figur 2

Darstellung der Reinigungsleistung mit einem zweiten Booster in saurem Milieu und

Figur 3

Graphische Darstellung der Reinigungsleistung im Verhältnis zum Zeitabstand zwischen Zudosierung der ersten und der zweiten Komponente.

Figur 4

Graphische Darstellung des Weißgrads weißer Bereiche von Baumwolle nach 15 Wäschen mit dem Komponentenwaschmittel gemäß Beispiel 4

Figur 5

Graphische Darstellung der Farbübertragung aus farbigen Bereichen von Baumwolle nach 15 Wäschen mit dem Komponentenwaschmittel gemäß Beispiel 4. Die angegebenen Farben sind mit Eigennamen bezeichnet.

Various embodiments of the invention are shown purely schematically in the drawings and are described below by way of example. It shows

FIG. 1

Presentation of the cleaning performance with a first booster in an alkaline medium (not according to the invention);

FIG. 2

Presentation of the cleaning performance with a second booster in an acid medium and

FIG. 3

Graphical representation of the cleaning performance in relation to the time interval between metered addition of the first and the second component.

FIG. 4

Graphical representation of the whiteness of white areas of cotton after 15 washes with the component detergent according to Example 4

FIG. 5

Graphical representation of the color transfer from colored areas of cotton after 15 washes with the component detergent according to example 4. The indicated colors are designated by proper names.

Examples Example 1: Example formulation for component 1: corresponds to an anhydrous formulation in the form of a super concentrate with bleach activator

For example, such an embodiment of Bleach Activator or Bleach Catalyst Component 1 contains 28 weight percent of an anionic surfactant (eg, Marlon AMI 80) and 17 weight percent of another anionic surfactant (eg, Texapon N 70 (2 EO unit Na lauryl ether sulfate)) and 21 weight percent of one nonionic surfactant (for example Lutensol M 7) and 6% by weight of an alcohol (for example propylene glycol) and 4.5% by weight of another nonionic surfactant (for example Lutensol GD 70) and 4.5% by weight of the solubilizer sodium cumenesulfonate (40%) and 4, 5 weight percent of an amphoteric surfactant (e.g., Rewoteric AMV (N-2-hydroxyethyl-N-carboxymethyl fatty acid amido-ethylamine-Na salt)) and 1.5 weight percent dye transfer inhibitor and 1.5 weight percent oil soluble polymers and 3.5 weight percent enzyme and 8 weight percent bleach activator (for example, Peractive LAC).

• 28 Gewichtsprozent Marlon AMI 80, und
• 17 Gewichtsprozent Texapon N 70, und
• 21 Gewichtsprozent Lutensol M 7, und
• 6 Gewichtsprozent Propylenglykol, und
• 4,5 Gewichtsprozent Lutensol GD 70, und
• 4,5 Gewichtsprozent Na-Cumolsulfonat (40%ig), und
• 4,5 Gewichtsprozent Rewoteric AMV, und
• 1,5 Gewichtsprozent Farbübertragungsinhibitor, und
• 1,5 Gewichtsprozent Öllösepolymer, und
• 3,5 Gewichtsprozent Enzyme, und
• 8 Gewichtsprozent Peractive LAC

A particularly preferred composition of the first component

• 28% by weight Marlon AMI 80, and
• 17% by weight Texapon N 70, and
• 21% by weight Lutensol M 7, and
• 6 weight percent propylene glycol, and
• 4.5% by weight Lutensol GD 70, and
• 4.5% by weight Na cumene sulfonate (40%), and
• 4.5% by weight Rewoteric AMV, and
• 1.5% by weight color transfer inhibitor, and
• 1.5% by weight of oil-soluble polymer, and
• 3.5 percent by weight enzymes, and
• 8 percent by weight Peractive LAC

Example 2: Bleach-free booster with water softeners (not according to the invention)

For example, such a booster contains 5 to 25 weight percent water-soluble polymers as water softeners (for example, polyacrylates, maleic acid-acrylic acid copolymers such as Sokalan CP10 (45%), Sokalan PA25CL (49%)), and 5 to 25% by weight Aminocarboxylates as chelating agents (e.g., Trilon M (40%)), and 0 to 2 weight percent optical brighteners (e.g., Tinopal CBS CL or Tinopal CBS X), and 1 to 5 weight percent nonionic, anionic or amphoteric surfactants (e.g., Rewoteric AMV, Lutensol GD70 ), and the rest of the water.

Example 3: Bleach-containing booster

For example, such a booster contains 5 to 20 weight percent water-soluble polymers as water softeners (for example Sokalan PA25CL (49%)), and 5 to 20 weight percent aminocarboxylates as chelating agents (for example Trilon M (40%)) and 0 to 1 weight percent optical brighteners ( for example, Tinopal CBS CL or Tinopal CBS X), and 1 to 5 weight percent surfactants (for example, Lutensol GD70), and 3 to 15 weight percent hydrogen peroxide or H ₂ O ₂ generating bleach and the remainder water.

Example 4: Washing tests for dosage

In order to investigate the effect of a separate dosage of the component 1 and the booster, as well as the appropriate metering of the booster in the washing process, the washing performance at 40 ° C after addition of the respective booster was in a random laundry program at 40 ° C in a Miele washing machine W4446 for different Times evaluated.

The washing tests were carried out as follows: colored test textiles with 17 different stains were washed with the following mixtures:
in a first batch, 50 g of a liquid detergent (Miele-UltraColor) without booster available on the market were used, in a second batch 75 g of Miele UltraColor liquid detergent without booster were used, in a third batch 50 g of Miele UltraColor liquid detergent and 25 g booster used.

In a first experiment, a bleach-free alkaline booster (pH 11) according to Example 2 was combined with the basic detergent (Miele UltraColor).

FIG. 1 shows a representation of the cleaning performance with a first booster in an alkaline medium. The Y-axis represents the cleaning performance as the sum of the measured remission units. Shown are three columns. Each column represents the cleaning performance of a test wash on 17 different stains with the above detergent quantities and / or detergent compositions.

Left is the cleaning performance with 50 grams of Miele UltraColor liquid detergent without booster shown. In the middle, the cleaning performance is shown with 75 grams of Miele UltraColor liquid detergent without booster. These two test variants thus correspond to the state of the art since only one (first) component is used. The second component (booster) according to the invention is not used here.

On the right is the cleaning performance with 50 grams of liquid detergent (first component), for example Miele UltraColor or Ariel, and 25 grams of booster (second component) according to the invention. In this test example, the booster described in Example 2 was used at a pH of 11.

It turned out to be a good time to add the alkaline booster at the beginning of the wash cycle, especially after 2 minutes.

It is clearly recognizable that, as expected, due to the higher dosage, the cleaning performance of the middle test example exceeds the cleaning performance of the left-hand test example.

Although only 2/3 of the liquid detergent amount (component 1) of the middle test example was used in the right test example, surprisingly the cleaning performance of the right-hand test example clearly exceeds the cleaning performance of the middle test example. In other words, by adding the booster, the cleaning performance of the basic detergent (component 1) can be significantly increased.

Surprisingly, all types of stains were better, but at least as well removed as in the middle test example, although the liquid detergent amount (component 1) of the right test example is only 2/3 of the liquid detergent amount (component 1) of the middle test example.

In a second experiment, a bleach-containing booster according to Example 3 was combined with the basic detergent (Miele UltraColor) once without and once with bleach activator (Peractive LAC).

FIG. 2 shows a representation of the cleaning performance with the second booster in an acidic environment. The Y-axis represents the cleaning performance as the sum of the remission measurement for 17 stains / stains. Shown are four columns. Each column represents the cleaning performance of a test wash with various amounts of detergent and / or detergent compositions.

On the left, the cleaning performance with 50 grams of liquid detergent without booster (for example, Miele UltraColor or Ariel) is shown. The second column shows the cleaning performance with 75 grams of Miele UltraColor liquid detergent without booster. These two test variants thus correspond to the prior art since only the first component is used. The second component (booster) according to the invention is not used here.

The second bar from the right shows the cleaning performance with 50 grams of liquid detergent (first component), for example Miele UltraColor (without bleach activator) or Ariel, and 50 grams of booster (second component) according to the invention. In this test example, the booster described in Example 3 was used at pH 5.

It can clearly be seen that although only 2/3 of the liquid detergent amount (component 1) of the second test example was used, the cleaning performance of the third test example exceeds the cleaning performance of the first two test examples.

With the additional use of 4 g bleach activator in the component 1 at a pH of 7 to 8, the cleaning performance is further increased - as can be seen from the rightmost bar.

Although only 2/3 of the liquid detergent amount (component 1) of the second test example was used in the very right test example, the cleaning performance of the right test example surprisingly clearly exceeds the cleaning performance of the other test examples. In other words, this means that when using the component 1 with bleach activator as described above with the addition of the booster with less liquid detergent higher cleaning performance can be achieved.

Surprisingly, almost all types of stains (different stains) were better, but at least as well removed as in the second test example, although the liquid detergent amount (component 1) of the right test example is only 2/3 of the liquid detergent amount (component 1) of the second test example.

In order to further optimize the cleaning performance, it was investigated at which time the acidic booster is best added.

FIG. 3 shows a graphical representation of the cleaning performance in relation to the time interval between metering of the first and the second component.

On the Y-axis the average cleaning power in remission units of 20 spots of Miele UltraColor liquid detergent with the hydrogen peroxide booster (second component of Example 3) described above for a cotton program at 60 ° C is plotted in a Miele W1935 Washer.

The X-axis indicates the time difference between the addition of Miele UltraColor liquid detergent and the booster in minutes.

The bleach booster should preferably be added between 20 and 40 minutes after the beginning of the washing process, more preferably not more than 30 minutes later. Later dosing reduces the benefit of dosing. The booster also unfolds its best effect when added in the range of 30 minutes after addition of the Miele UltraColor liquid detergent (component 1).

As a result, the best time to meter in the entire second component (booster without bleach activator or bleach catalyst) is within 30 minutes of metering the Miele UltraColor liquid detergent at the beginning of the wash cycle.

Example 5:

Efficiency of the detergent for optical brightening / whiteness measurement

In order to examine the efficiency of the detergent with respect to the white-white areas of the laundry, cotton was washed 15 times in the 40 ° C program (Linitest), and after washing, a whiteness measurement was made.

For this purpose, a color transfer inhibitor was used in component 1 of the detergent, in component 2 an optical brightener. The color transfer inhibitor used in all approaches Sokalan HP 56 (a vinylpyrrolidone-vinylimidazole Copolypmer from BASF). As optical brighteners three different brighteners were tested: in a first batch FB-71 (from Aako), in a second batch leucophore BSB (from Clariant) and in a third batch Tinopal CBS-X (from BASF).

With the simultaneous use of a dye transfer inhibitor and an optical brightener, it is preferred that the dye transfer inhibitor not recognize the optical brightener as a "dye" and prevent it from being absorbed onto the fabric.

FIG. 4 It can be seen that in the separate use of color transfer inhibitor in component 1 of the detergent and optical brightener in component 2 of the detergent in each case a significant brightening of the laundry can be achieved. In particular, when using Tinopal CBS-X, the color transfer inhibitor does not appear to bind this brightener and the whiteness is not affected after 15 washes.

In order to examine the efficiency of the detergent with respect to the radiant colors of the laundry, 3 kg of unattenuated ballast wash (+ test fabric) was washed 15 times in BW 40 ° C program and after washing for coloration (color loss, light color ranges) under D 65 light examined. A color retention test was carried out with the AISE 14 color set and 8 purchased pastel-colored textiles. Subsequently, the color shift on the textiles was examined.

For this purpose, component 1 was used as described in Example 1, as a booster, a composition was used according to Example 3, which was also added as optical brightener Tinopal CBS-X in an amount such that 0.15% or 0.073% final concentration achieved in the total detergent were. As a comparison, a commercially available heavy duty detergent was used. It was found that the component detergent does not adversely affect the colors of the laundry, there was no further color damage or color shift of the coloreds, while in use of heavy duty detergent a significant fading of the colors was detectable after 15 washes.

FIG. 5 It can be seen that the efficiency of the color transfer inhibitor is not affected in the presence of the optical brightener.

Claims (13)

1. Detergent, in particular a detergent for washing laundry, comprising two separate components, the first component being formed by a liquid detergent and the second component being a booster
   characterised in that

   - the first component contains at least anionic surfactants and less than 10 wt.% builders

   - the second component contains a water softener from the group of polymeric builders, complexing agents and sequestering agents, and also contains a bleaching agent, preferably H₂O₂ or a bleaching agent that produces hydrogen peroxide, 0.2 to 15 wt.% surfactants and an optical brightener.
2. Detergent according to claim 1, characterised in that the first component contains

   - anionic surfactants, and

   - non-ionic surfactants, and

   - less than 5 wt.% builders, and

   - at least one alcohol

   - optionally a dye-transfer inhibitor

   - optionally a bleach activator and/or a bleach catalyst.
3. Detergent according to at least claim 1 or claim 2, characterised in that
   the booster has a pH of from 3 to 6.
4. Detergent according to any of claims 1 to 3, characterised in that
   the booster contains 0.5 to 10 wt.%, preferably 1 to 5 wt.%, surfactants.
5. Detergent according to at least one of claims 1 to 4, characterised in that
   component 1 contains a dye transfer inhibitor.
6. Detergent according to claims 4 and 5, characterised in that
   the first component contains a dye-transfer inhibitor that comprises a vinylpyrrolidone-vinylimidazole copolymer, and the second component contains a diphenylstyryl derivative as the optical brightener, and H₂O₂ or a bleaching agent that produces H₂O₂ as the bleaching agent.
7. Detergent according to at least one of claims 1 to 6, characterised in that
   the booster contains a phosphonate as the water softener.
8. Detergent according to at least one of claims 1 to 6, characterised in that
   the booster contains

   - 5 to 20 wt.% water-soluble polymers as builders, and

   - 5 to 20 wt.% amino carboxylates and

   - 0 to 2 wt.% optical brighteners, and

   - 1 to 5 wt.% non-ionic, anionic or amphoteric surfactants, and

   - 3 to 15 wt.% hydrogen peroxide or an agent that produces H₂O₂, and

   - the remainder of said booster is water.
9. Detergent according to at least one of claims 1 to 8, characterised in that
   the first component contains 1 to 10 wt.% of a bleach activator or 0.01 to 2 wt.% of a bleach catalyst.
10. Method for metering a detergent according to at least one of claims 1 to 9 by means of an automatic metering device for separately metering different components of a detergent,
    characterised in that

    - the first component of the detergent is added in a first step,

    - and the second component of the detergent is subsequently added in the same washing cycle after a delay.
11. Method according to claim 10, characterised in that
    the first component is added at the start of a washing cycle and the second component is added within 45, preferably 20 to 40, more preferably 30 minutes of the first component being added, or the second component is added within 5, preferably within 3 minutes of the first component being added.
12. Method for washing laundry, characterised in that a detergent according to any of claims 1 to 9 is used in a method according to either claim 10 or claim 11.
13. Method according to claim 12, characterised in that a mixing ratio for component 1 :
    component 2 (C1:C2) of from 2:1 to 10:1 is used in order to obtain a colour-safe detergent, or a mixing ratio for component 1 : component 2 (C1:C2) of less than 2:1 to 1:10 is used in order to obtain a heavy-duty detergent.

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