EP3538630A1

EP3538630A1 - Aqueous washing or cleaning agent compositions containing natural waxes as opacifying agents

Info

Publication number: EP3538630A1
Application number: EP17797541.4A
Authority: EP
Inventors: Edgar Endlein; Brigitte Rosenthal
Original assignee: Werner and Mertz GmbH
Current assignee: Werner and Mertz GmbH
Priority date: 2016-11-14
Filing date: 2017-10-24
Publication date: 2019-09-18
Anticipated expiration: 2037-10-24
Also published as: WO2018086857A1; EP3538630B1; PL3538630T3; EP3538630C0; ES2949524T3

Abstract

The invention relates to aqueous washing or cleaning agent compositions containing natural waxes as opacifying agents, to the use of natural waxes as opacifying agents in aqueous washing or cleaning agent compositions and to a method for producing said compositions.

Description

Aqueous washing or cleaning compositions containing natural waxes as clouding agents

The present invention relates to aqueous detergent compositions containing natural waxes as clouding agents, the use of natural waxes as clouding agents in aqueous washing or cleaning compositions, and a process for preparing such compositions.

Consumer products in the field of cleaning of hard and textile surfaces and of human skin and hair, especially aqueous washing or cleaning compositions, usually contain as detergent substances so-called surfactants, which lower interfacial tensions due to their surface-active properties, so that impurities such as fats and Emulsified oils and can be removed with the washing solution. In addition to the aforementioned surfactant main active ingredients, it is also possible to use a series of additives which can also contribute to the washing or cleaning action. Examples of such additives include hydrotropes (solubilizers), solvents, enzymes, acids, alkalis or complexing agents. In addition, adjuvants can be used which can influence the stability of detergent or cleaner compositions, such as pH regulators or buffer systems, antioxidants, UV filters, preservatives, rheological additives or electrolytes. Finally, it is also possible to use substances in aqueous detergents or cleanser compositions which primarily appeal to the human senses, such as fragrances or dyes.

A special form of the product aesthetics of aqueous detergent or cleaning compositions lies in the degree of their translucency (translucency). Depending on the technique used, light transmittances can be obtained from completely transparent via partial-permeable intermediates to completely opaque (opaque). In addition, certain additional optical effects can also be achieved, e.g. Pearlescent. Such techniques which affect light transmission may confer aqueous washing or cleaning compositions in addition to primarily aesthetic but also functional properties, e.g. to restore the skin.

There are today a number of surfactant detergents and cleaners (so-called "rinse-off products) and cleansing cosmetics such as liquid soaps, shower or foam baths and shampoos known whose light transmittances are clouded, for example, in the color milky white. In the abovementioned means, this turbidity is today almost without exception achieved by the addition of special plastic dispersions, in particular by those based on styrene-acrylate copolymers (cf., for example, styrene / acrylate polymer with CAS RN 9010-92-8), in which the plastic particles are in the form of solid particles, usually in a particle size of about 170 nm and above. Since such styrene-acrylate copolymer particles are not biodegradable, today u.a. For reasons of water protection, it is recommended to refrain from using them in care products (see, for example, publication on the Internet pages of the German Federal Environment Agency dated 16 March 2016: "Microplastics in cosmetics - What is this?").

In terms of environmental compatibility, it is also advantageous if the other ingredients of aqueous detergents or cleaners in sewage treatment plants and / or are preferably biodegradable, such as known biodegradable anionic or nonionic surfactants, such as based on vegetable oils. A further disadvantage of the abovementioned styrene-acrylate copolymers is that they tend to sediment in aqueous washing or cleaning agent compositions, with the result that corresponding products often have an optically unacceptable sediment after storage for some time. Of course, the described sedimentation impairs the acceptance of an affected product by the end user. This is especially noticeable (but not only) in the use of the styrene-acrylate copolymers in aqueous detergent or cleaning compositions which are highly diluted and / or which contain an increased concentration of electrolytes (such as inorganic dissociable salts), in particular of sodium carbonate. For the purposes of the present invention, an increased concentration of electrolytes is understood as meaning a content of such electrolytes of 0.75% by weight or more, in particular a content of 1.0% by weight or more, in each case based on the total mass of one considered aqueous detergent or cleaning composition. In the context of the present invention, a strong dilution or a highly diluted aqueous washing or cleaning agent composition (eg a water-thin composition) is understood as meaning a composition whose dynamic viscosity is <100 mPa s, preferably <10 mPa s, measured in each case with a Brookfield rotary viscometer, spindle LV1 at 100 rpm and a temperature of 20 ° C.

In aqueous washing or cleaning compositions which contain styrene-acrylate copolymers as opacifying agents, especially in those which are highly diluted and / or which have an increased concentration of electrolytes, can be stored for a period of approximately three hours up to six months already at a temperature of 23 ° C, but especially at elevated temperatures of about 40 ° C or in the range of 40 ° C to 60 ° C, quite often observe an undesirable sedimentation of the styrene-acrylate copolymer. However, detergent or cleaning compositions which survive the above-mentioned storage at 40 ° C or in the range of 40 ° C to 60 ° C with no noticeable loss of product quality, eg no apparent signs of sedimentation, are generally considered to be stable under real conditions ( fluctuating temperatures due to the annual and daily times, etc.) can be stored for at least two years with the same quality. In addition, such a positive test of storage stability (at 40 ° C or in the range of 40 ° C to 60 ° C) also indicates the suitability of the products for distribution in warmer climates. The specification WO 03 / 033634A1 describes anionic surfactant-free low-viscosity opacifiers for use in household surface-active products which contain wax bodies, amphoteric surfactants, fatty acid partial glycerides, fatty acid polyglycol esters and optionally polyols in a specific weight ratio. As other auxiliaries or additives may inter alia also certain waxes occur.

The document WO 92/1 1330 describes a process for the preparation of cleaning and care compositions in which a wax emulsion containing alkyl glycoside as emulsifier is mixed with the other constituents of such agents.

The document US 201 1/0172135 describes compositions which contain nanowax particles and are intended for the simultaneous washing and waxing of a motor vehicle.

The document US Pat. No. 5,496,493 describes an "ultra-mild personal cleansing bar containg smaller-sized particulate wax".

The company publication "Koster Keunen: Carnauba Milk - Natural (Wax # 576B) Watertown, CT, USA 2015" describes an aqueous dispersion of carnauba wax for various uses.

It was a primary object of the present invention to provide cloudy aqueous detergent or cleaner compositions which have no or only a very low tendency to sedimentation even on prolonged storage and even at elevated temperatures, to the use of conventional plastic-based opacifiers wholly or largely dispensed with and preferably combined with known, biodegradable anionic or nonionic surfactants. Preferably, the invention should provide such aforesaid cloudy aqueous detergent compositions which retain said beneficial properties even at high dilution and / or in the presence of increased electrolyte concentration without causing sedimentation, in particular breakdown of the opacifying agent without the need for the addition of further additives would be necessary. It has been a specific further object of the present invention to provide a novel use of biodegradable, preferably natural, waxes as opacifiers in aqueous laundry or cleaning compositions.

Another object of the present invention was to provide a process for the preparation of opaque aqueous detergent or cleaner compositions of the kind specified above.

The invention is further described and / or defined in the appended claims. Embodiments and specific and / or preferred embodiments of the invention are described in more detail below. Unless otherwise stated, preferred aspects or embodiments of the invention may be combined with other aspects or embodiments of the invention, particularly with other preferred aspects or embodiments. The combination of respective preferred aspects or embodiments with each other again results in preferred aspects or embodiments of the invention. Embodiments, aspects or properties which are described in connection with the present invention for the aqueous washing or cleaning agent compositions according to the invention or are described as being preferred, apply mutatis mutandis correspondingly or mutatis mutandis to the uses or methods of the invention.

If compositions, uses or processes are described below which "comprise" or "contain" specific embodiments, constituents or features, the corresponding variant of the compositions, uses or processes to be understood in a narrower scope should also be disclosed in each case which "consists" of these specific embodiments, components or features.

It has now been found that the primary object is achieved by an aqueous washing or cleaning agent composition provided according to the invention comprising a composition-clouding amount of particles of one or more waxes, each selected from the group consisting of montan wax and carnauba wax and mixtures thereof, wherein 85% by volume or more of the particles of these waxes have a measured by laser diffraction particle size of <15 μιη possess ("D85" value).

The particles of carnauba wax and montan wax contained in compositions according to the invention can be used in any desired mixing ratio. However, preference is given to a composition according to the invention of the type described above, wherein the amount of particles clouding the composition comprises carnauba wax or a mixture of carnauba wax with montan wax. Particularly preferred is such an inventive or preferred composition of the invention wherein the amount of particles clouding the composition comprises only carnauba wax.

Carnauba Wax (Synonyms: Carnauba Wax, Brazil wax, E 903, registered under CAS RN 8015-86-9 in the "Coslng Database" of the European Commission for information on cosmetic substances and ingredients, which is included in the EU Cosmetics Regulation no. 1223/2009) is a natural plant wax known per se, which can be obtained from the leaves of the Brazilian fan palm Copernicia prunifera or carnauba palm (Copernicia cerifera) .The main ingredients are esters of wax acids, ω-hydroxycarboxylic acids and cinnamic acids with wax alcohols and diols , free wax acids such as carnaubic acid and long-chain alcohols, diols and saturated hydrocarbons.

Montan wax (synonym: mountain wax, registered under CAS RN 8002-53-7 in the Coslng database) can be produced from naturally occurring lignite. Main constituents are esters of C22-C34 fatty acids with C24, C26 and C28 wax alcohols.

As liquid aqueous detergent or cleaner compositions in the context of the present invention are in particular those for use in the household or in the industry in question, preferably those for cleaning hard surfaces such as all-purpose or kitchen cleaners. In particular, the opacifying particles described herein allow the formulation of storage stable compositions of the present invention having high concentrations of electrolytes, preferably sodium carbonate (also known as soda), for example in concentrations of at least 0.75% by weight based on the total weight of the composition a desirable, appealing, milky white turbidity with surprisingly low tendency for sedimentation. Sodium carbonate is known, inter alia, as a natural means for removing fats, so that the preferred sodium carbonate-containing washing or cleaning agent compositions described here are particularly suitable for use in all areas in which the cleaning action against fat or fats is particularly important , Preference is therefore given to an aqueous detergent or cleaning composition according to the invention which additionally comprises sodium carbonate.

The washing or cleaning agent composition according to the invention contain wax particles of a defined particle size distribution measured by laser diffraction: 85% by volume or more of the particles of the abovementioned waxes or wax mixtures in compositions according to the invention have a particle size of <15 μm measured by laser diffraction.

Accordingly, a preferred inventive or preferred detergent or cleaning composition according to the invention comprising: a composition opacifying amount of particles of a wax or multiple waxes, each selected from the group consisting of montan wax, carnauba wax and mixtures thereof, preferably each selected from Carnauba wax or a mixture of carnauba wax and montan wax, wherein 85 vol .-% or more of the particles of these waxes have a measured by laser diffraction particle size of <15 μιη

and

Sodium carbonate, preferably a proportion of sodium carbonate of at least 0.75 wt .-%, particularly preferably in the range of 0.75 wt .-% to 2.0 wt .-%, each based on the total mass of the composition. In our own experiments it was possible to show that detergent or cleaner compositions according to the invention with a proportion of electrolytes specified above, in particular of sodium carbonate, remained sedimentation-stable over a period of several months under practically relevant conditions.

Also preferred is an inventive or preferred aqueous detergent or cleaning composition according to the invention, wherein 90% by volume or more, preferably 95% by volume or more, of the particles of a wax or several waxes, each selected from the group consisting of montan wax, carnauba wax and mixtures thereof, a particle size of <15 μιη possess, preferably a particle size of <12 μιη, more preferably a particle size of <10 μιη, most preferably a particle size of <7 μιη, most preferably a particle size of <1, 0 μιη. Preference is given here to a composition according to the invention in which 90 vol .-% or more of the particles of a wax or more waxes, each selected from the group consisting of montan wax, carnauba wax and mixtures thereof, a particle size of <7 μιη, particularly preferably a particle size of <1, 0 μιη possess. Furthermore, such a composition according to the invention is preferred in which 95% by volume or more of the particles are selected from one or more waxes, each selected from the group consisting of montan wax, carnauba wax and mixtures thereof, a particle size of <7 μm have a particle size of <1, 0 μιη.

Further preferred is an inventive or preferred inventive aqueous detergent or cleaner composition, wherein 90 vol .-% or more, preferably 95 vol .-% or more, of the particles of a wax or more waxes, each selected from the group consisting of Montan wax, carnauba wax and mixtures thereof, have a particle size in the range of 0, 1 to 15 μιη, preferably a particle size in the range of 0.1 to 12 μιη, more preferably a particle size in the range of 0, 1 to 10 μιη, most preferably a particle size in the range of 0.1 to 7 μιη and most preferably a particle size in the range of 0.1 to 1, 0 μιη. Preference is also given to a composition according to the invention in which 90% by volume or more of the particles consist of one wax or several waxes, each selected from the group consisting of montan wax, carnauba wax and mixtures thereof, having a particle size in the range from 0.1 to 1.0 own μιη. Furthermore, one is those composition according to the invention preferably in which 95 vol .-% or more of the particles of a wax or more waxes, each selected from the group consisting of montan wax, carnauba wax and mixtures thereof, a particle size in the range of 0, 1 to 1, 0 μιη own ,

The particle size distribution in the aqueous washing or cleaning agent compositions according to the invention is determined in a manner known per se by laser diffraction. Calculated D10, D50, or D90 values of the cumulative frequency distribution of the volume-averaged size distribution function indicate that in each case 10% by volume, 50% by volume and 90% by volume, respectively, of the particles of a micronized wax have a particle size which is equal to or less than the specified value. The size distribution curve of the micronized waxes is preferably determined according to ISO (International Organization for Standardization) 13320-1 (1999), and more preferably with a laser diffraction apparatus, e.g. of the type "Mastersizer 2000" or "Mastersizer 3000", both from the company Malvern, Great Britain, in both cases according to the manufacturer's instructions. The evaluation of the scattered light signals is carried out according to the Mie theory, which also takes into account the refractive and absorption behavior of the micronized waxes.

Preferably, the volume-related D50 value of the wax particles contained in an aqueous detergent or cleaner composition according to the invention is not greater than 1 μm. Preferably, at the same time, the volume-related D90 value of said wax particles is not greater than 2 μm.

Particular preference is given to inventive or preferred aqueous washing or cleaning agent compositions according to the invention having the properties of the particle size distribution described above as being preferred such that, after storage for a period of 6 months at a temperature of 40 ° C., the volume-related D 50 Value is not greater than 1 μιη. It is particularly preferred in these compositions after said storage, the volume-related D90 value at the same time not greater than 2 μιη. Wax dispersions having a desired particle size distribution are known per se and are commercially available, for example from the company Keim Additec, Kirchberg, Germany. Furthermore, those skilled in the art such wax dispersions and methods for their preparation are known, for example, R. Heusch, Ullmann's Encyclopedia of Industrial Chemistry, 5th ed. (Possibly younger editions) 1987, A9, p 297 et seq.

In general, similar rules apply in the preparation of wax dispersions as in the preparation of emulsions, since they are each mixtures of hydrophilic (for example water) and hydrophobic (usually oils or waxes) phases, in particular liquids. For their production, e.g. molten liquid wax added to boiling water above the dropping point, or vice versa. The drop point is the temperature at which a substance begins to flow under standardized test conditions. The substance is heated until it changes from a solid to a liquid state. During the measurement, the temperature is detected, at which the first drop of the substance sample dissolves.

Suitable emulsifiers which greatly reduce the interfacial tension between two substances (up to about 1 mN / m) can be selected in empirical preliminary experiments on the basis of their chemical structure and polarity and can be pre-dissolved both in the wax phase and in the water phase. The mixing of the two - usually then liquid - phases is usually done with vigorous stirring, often using high-shear rotor-stator systems. If emulsifiers are used, they occupy and stabilize the newly formed interfaces (eg disperse inner phase of very fine wax droplets in a continuous outer aqueous phase), so that the fresh emulsion produced prevents unwanted growth of large droplets at the expense of the smaller (so-called "Ostwald ripening"). , leads to strongly polydisperse systems) and the union of several droplets into a large drop (so-called "coalescence") is stabilized. Conventional (macro) emulsions are usually thermodynamically unstable, unlike "micro-emulsions." Depending on the type (anionic, nonionic, cationic), the stabilizing properties of emulsifiers are based on electrostatic and / or steric repulsive effects Known expert scientific rules or theories can be used for a better understanding of two-phase systems, eg the "DLVO theory", the "Bancroft rule", the "HLB system" (Hydrophilic-Lipophilic-Balance) to Griffith; In addition to thermodynamics, kinetics also plays an important role in the production of emulsions: In the division of the internal phase, the input of energy (eg due to high shear) creates a large number of very fine particles The resulting large surface should be filled with emulsifier molecules as quickly as possible (influence of kinetics) and permanently (influence of thermodynamics) It has proved to be advantageous to combine different emulsifiers.

Unstable emulsions show effects such as creaming and sedimentation over time. As small as possible monodisperse particles, low density differences of the two phases and a high viscosity of the continuous phase have a stabilizing effect. A low, water-thin viscosity of the outer phase poses a greater challenge to the long-term storage stability of emulsions and dispersions. Only very small particles of diameter <100 nm (semi-transparent microemulsions which exhibit a Tyndall effect and represent a transition to true solutions) are thermodynamically stable (ie entropy stabilized) and show no or hardly Aufrahmungs- or sedimentation phenomena. In particle or particle size ranges from 200 to 500 nm, water-thin emulsions tend to flocculate and / or aggregate primary droplets or particles. Such "clusters" of particle growth can be precursors for coalescence and thus irreversible confluence with larger droplets or particles.Such macroscopically, such phenomena lead to visible instabilities of the two- or multi-phase system.Also, dissolved electrolytes (salts) increase the probability of occurring instabilities during The storage time of emulsions and dispersions The combination of water-thin outer continuous phase and salt dissolved therein presents a particular challenge to the stability of an emulsion or dispersion.

The inventive or preferred aqueous washing or cleaning compositions comprise wax particles of the above-indicated particle size distribution or preferred particle size distribution, preferably in a certain total amount: the total amount of particles of one or more waxes, each selected from the group consisting of montan wax, carnauba wax and their mixtures, in a composition according to the invention or preferred composition in the range of 0.01 to 1, 0 wt .-%, preferably in the range of 0.01 to 0.7% by weight, particularly preferably in the range of 0 , 01 to 0.5% by weight, most preferably zugt in the range of 0.01 to 0.1 wt .-%, each based on the total mass of the composition.

Accordingly, preference is given to an inventive or preferred detergent or cleaning composition according to the invention comprising

a quantity of particles clouding the composition from one wax or several waxes, each selected from the group consisting of montan wax, carnauba wax and mixtures thereof, wherein 85% by volume or more of the particles of these waxes have a particle size of <15 measured by laser diffraction own μιη, and

wherein the total amount of particles of one or more waxes each selected from the group consisting of montan wax, carnauba wax and mixtures thereof in the composition is in the range of 0.01 to 1.0% by weight, preferably in the range of 0 , 01 to 0.7 wt .-%, more preferably in the range of 0.01 to 0.5 wt .-%, most preferably in the range of 0.01 to 0.1 wt .-%, each based on the Total mass of the composition,

and preferably

Sodium carbonate, preferably a proportion of sodium carbonate of at least 0.75 wt .-%, particularly preferably in the range of 0.75 wt .-% to 2.0 wt .-%, each based on the total mass of the composition.

Preferred aqueous detergent or cleaner compositions of the present invention comprise a composition opacifying amount of one or more wax particles each selected from the group consisting of montan wax, carnauba wax and mixtures thereof, wherein 90% by volume or more of the particles of these waxes a measured by laser diffraction particle size in the range of 0, 1 to 12 μιη, preferably in the range of 0, 1 to 7 μιη and wherein the total amount of the aforementioned particles in the range of 0.01 to 1, 0 wt .-%, based on the total mass of the composition. Also preferred are inventive or preferred inventive aqueous detergent or cleaner compositions comprising a clouding amount of the composition of one or more waxes, each selected from the group consisting of montan wax, carnauba wax and mixtures thereof, wherein 90 vol .-% or more, preferably 95 vol .-% or more, of the particles of these waxes measured by laser diffraction particle size in the range of 0.1 to 12 μιη, preferably in the range of 0, 1 to 7 μιη possess and wherein the total amount of the aforementioned particles in the range from 0.01 to 0.7% by weight, based on the total weight of the composition.

In preferred embodiments, the aqueous washing or cleaning agent compositions according to the invention comprise further constituents in addition to the above-described particles of a wax or several waxes in the specified or preferred particle size distributions and in the optionally indicated or preferred total amounts. Thus, in particular, a composition according to the invention is preferred which comprises: a proportion of one or more surfactants selected from the group consisting of anionic surfactants and nonionic surfactants, wherein the or at least one of the anionic surfactants is preferably selected from the group consisting of sodium Laureth sulfates, sodium lauryl sulfates and surfactants obtainable by neutralization of fatty acids with alkanolamines, and wherein the or at least one of the nonionic surfactants is preferably selected from the group consisting of lauryl / myristyl glucosides and PEG-4 rapeseedamides,

and or

a proportion of sodium carbonate of at least 0.75 wt .-%, based on the total mass of the composition, preferably comprising a proportion of sodium carbonate in the range of 0.75 wt .-% to 2.0 wt .-%, and / or

an emulsifier or emulsifiers, preferably selected from the group consisting of anionic emulsifiers and nonionic emulsifiers. Sodium Laureth Sulfate (also referred to as Sodium Laureth Sulphate) is known per se as an ingredient in cleansing, care and cosmetic products. This is a mixture of substances which according to the Coslng database contains or may contain the following substances, each with the CAS registration numbers (Chemical Abstracts Services) known to the person skilled in the art: CAS RN 3088-31-1; 9004-82-4; 68891-38-3; 1335-72-4; 68585-34-2; 91648-56-5; 221-416-0; 500-234-8; 500-223-8; 293-918-8. In the narrower sense, Sodium Laureth Sulfate refers to sodium salts of ethoxylated C12-C14 fatty alcohol ether sulfates. All of these substances and their mixtures in any desired mixing ratios are to be encompassed here by the term "sodium laureth sulfates", in particular the polyethylene glycol mono-C 12 -C 14 -alkyl ether sulfate sodium salt with CAS-RN 68585-34-2.

Sodium Lauryl Sulfate is also known per se as an ingredient in cleansing, care and cosmetic products and refers to sodium salts of alkyl (C 12 -C 16) -alcohol sulfates (CAS RN: 73296-89-6), in the narrower sense the sodium dodecyl sulfate (CAS RN: 151-21 -3). All of these substances and their mixtures in any mixing ratios are here to be encompassed by the term "sodium lauryl sulfate".

As alkanolamines for the preparation of the above-mentioned surfactants, which are obtainable by neutralization of fatty acids with alkanolamines, in particular primary, secondary and tertiary C 1 -C 4 -alkylamines are suitable, in which the C 1 -C 4 -alkyl chains may each be linear or branched, and Mixtures of these C1-C4-alkylamines in any mixing ratios. Triethanolamine (also referred to as 2, 2 ', 2 "-nitrilotriethanol or [tris (2-hydroxyethyl) amine]) is preferably used as the alkanolamine, if appropriate in customary commercial purity, ie at most still containing by-products obtained in the preparation and impurities in for the purpose of acceptable quantity.

Suitable fatty acids for the preparation of the surfactants described above, which are obtainable by neutralization of fatty acids with alkanolamines, in particular fatty acids or fatty acid mixtures of natural origin, for example those of vegetable oils, which usually have even numbers of carbon atoms. Suitable vegetable oils can be obtained from oil plants known per se, for example from olives, sesame, linseed, Rapeseed, hemp or sunflowers. Examples of suitable fatty acids which can be used individually or in any desired mixing ratios with one another are, for example, those having 14 to 22 carbon atoms (C 14 -C 22), preferably those having 16 to 18 carbon atoms (C 16 -C 18), which are each preferably straight-chain and 0, 1 or 2 double bonds in the molecule. Preferably, fatty acid mixtures are used with an average content of C18 fatty acid (s) having a single double bond in the molecule (C18: 1, eg oleic acid) of 60 to 75 wt .-%, preferably about 68 wt .-%. Preferred are, for example, fatty acid mixtures which contain predominantly C16- (about 10 to 18% by weight of the fatty acid mixture), C18- (about 2 to 5% by weight of the fatty acid mixture), C18: 1- (about 63 to 72% by weight). the fatty acid mixture) and C18: 2- (about 8 to 13% by weight of the fatty acid mixture) fatty acids. Preferably, the aforementioned fatty acids or fatty acid mixtures are obtained or prepared from olive oil.

Lauryl / Myristyl Glucoside refers here to the known per se substances lauryl glucoside and myristyl glucosides and their mixtures in any ratio to each other. Lauryl glucoside is also referred to as dodecyl D-glucoside (CAS RN: 27836-64-2). Myristyl glucoside is also referred to as tetradecyl D-glucoside (CAS RN 54549-26-7).

PEG-4 rapeseedamides (name according to "International Nomenclature of Cosmetic Ingredients", INCI, see International Cosmetic Ingredient Dictionary and Handbook, 15th ed., 2014, Personal Care Products Council, ed., CAS RN 85536-23-8) may be issued Rapeseed oil are produced and is known per se, for example as an ingredient of cleaning or cosmetic products.

The aforementioned proportion of one or more surfactants, each selected from the group consisting of anionic surfactants and nonionic surfactants, in preferred or preferred compositions according to the invention is preferably in the range from 1, 0 to 7.0 wt .-%, preferably in the range of 1, 5 to 6.0 wt .-% and particularly preferably in the range of 2.0 to 4.0 wt .-%, each based on the total mass of the aqueous detergent or cleaning composition. In a preferred embodiment, the inventive or preferred aqueous detergent or cleaner composition according to the invention comprises a content of sodium carbonate of at least 0.75% by weight, in particular a total content of sodium carbonate in the range from 0.75 to 2.0% by weight. , preferably a total content of Natnumcarbonat in the range of 0.8 to 1, 5 wt .-%, each based on the total mass of the composition.

In a specific preferred embodiment, the composition according to the invention thus comprises: a composition clouding amount of one or more waxes each selected from the group consisting of montan wax, carnauba wax and mixtures thereof, 90% by volume or more of the particles thereof Waxes have a particle size in the range from 0.1 to 15 μm measured by laser diffraction and the total amount of the aforementioned particles in the range from 0.01 to 1.0% by weight, preferably in the range from 0.01 to 0, 7 wt .-%, based on the total mass of the composition is, - a proportion in the range of 1, 0 to 7.0 wt .-%, based on the total mass of the composition, of one or more surfactants selected from the group consisting of anionic surfactants and nonionic surfactants, wherein the or at least one of the anionic surfactants is preferably selected from the group consisting of sodium laureth sulfates, So dium lauryl sulfates and surfactants which are obtainable by neutralization of fatty acids with alkanolamines and wherein the or at least one of the nonionic surfactants is preferably selected from the group consisting of lauryl / myristyl glucosides and PEG-4 rapeseedamides, - a proportion of Natnumcarbonat in the range of 0.75 wt .-% to 2.0 wt .-%, based on the total mass of the composition, optionally one emulsifier or more emulsifiers, preferably selected from the group consisting of anionic emulsifiers and nonionic emulsifiers

and Water as a solvent.

A particularly preferred embodiment of an inventive or preferred aqueous washing or cleaning agent composition according to the invention comprises:

Water, preferably in an amount in the range of 90 to 97 wt .-%, particularly preferably in the range of 92 to 96 wt .-%, each based on the total mass of the composition; one or more surfactants selected from the group consisting of anionic surfactants and nonionic surfactants, wherein the or at least one of the anionic surfactants is preferably selected from the group consisting of sodium laureth sulphates, sodium lauryl sulphates and surfactants obtainable by neutralization of fatty acids with alkanolamines and wherein the or at least one of the nonionic surfactants is preferably selected from the group consisting of lauryl / myristyl glucosides and PEG-4 rapeseedamides, preferably in an amount in the range of 1, 5 to 6.0 wt .-%, particularly preferably in the range of 2.0 to 4.0 wt .-%, each based on the total mass of the composition;

Sodium carbonate, preferably in an amount in the range of 0.75 to 2.0 wt .-%, particularly preferably in the range of 0.8 to 1, 5 wt .-%, each based on the total mass of the composition; a composition clouding amount of one or more wax particles each selected from the group consisting of montan wax, carnauba wax and mixtures thereof, wherein 85% by volume or more, preferably 90% by volume or more, of the particles of these waxes have a measured by laser diffraction particle size of <15 μιη, preferably in a total amount in the range of 0.01 to 1, 0 wt .-%, particularly preferably in the range of 0.01 to 0.5 wt .-%, most preferably in the range of 0.01 to 0, 1 wt .-%, each based on the total mass of the composition

and optionally further constituents, preferably in a total amount of up to 2.5 wt .-%, particularly preferably of up to 2.0 wt .-%, each based on the total mass of the composition.

The percentages by weight of the individual constituents in the abovementioned particularly preferred embodiment are in each case complementary to 100% by weight.

As further optional constituents for inventive or preferred compositions according to the invention, suitable constituents for aqueous washing or cleaning agents are suitable, preferably one emulsifier or several emulsifiers, in particular selected from the group consisting of anionic emulsifiers and nonionic emulsifiers; complexing; Solvent, especially in the specified amount range of water-miscible solvents; Disinfectants; biocides; Perfumes and / or dyes.

Suitable anionic emulsifiers may for example be selected from the group consisting of primary and secondary C ₈ -18 alkyl sulfates, preferably fatty alcohol ether sulfates; primary and secondary C ₈ -18-alkyl ether sulfates, also known as fatty alcohol polyglycol ether with an ethoxylation degree of from one to three; primary and secondary C ₈ -i8-alkyl ether carboxylates, also referred to as Fettalkoholpolyglykolethercarboxylate, with a degree of ethoxylation of from four to ten and C ₁₂ -i8-alkanesulfonates, preferably secondary Ci2-i8-alkanesulfonates.

Suitable nonionic emulsifying agents may be, for example, be selected from the group consisting of primary and secondary C ₈ -i8-ethoxylates, also known as fatty alcohol polyglycol ether with a degree of ethoxylation of from two to 50; C ₈ -i8-Alkylsorbitanethoxylaten, also referred to as ethoxylated sorbitan fatty acid esters, with a degree of ethoxylation of from two to 50 C and ₈ _18- alkyl polyglycosides, also known as alkyl polyglucosides, with glycosides dierungsgrad from one to three.

The notation "C ₈ -18-" in the context of the present invention in each case denotes a monovalent, linear or branched aliphatic group which has from eight to 18 carbon atoms (or a corresponding other number for the statement with other numerical values), can be saturated or mono- or polyunsaturated and contains only hydrogen atoms in addition to carbon atoms. The terms "primary" and "secondary" mean here in each case that a functional group (a group which is not a pure hydrocarbon radical, eg a sulfate group) of a surfactant is either bound to a primary carbon atom (which in addition to two hydrogen atoms or a hydrocarbon radical as Carries substituents) or to a secondary carbon atom (which carries two hydrocarbon radicals as substituents in addition to a hydrogen atom).

Emulsifiers such as the abovementioned anionic or nonionic emulsifiers frequently also have surface-active properties and can then also act as surfactants. Therefore, if the aqueous washing or cleaning agent compositions according to the invention contain not only the above-specified proportion of one or more surfactants but also emulsifiers such as the anionic or nonionic emulsifiers described in more detail above, for the purposes of the present invention, when determining the weight fraction anionic surfactants and nonionic surfactants and where otherwise necessary for understanding, the proportions of this surfactant or these surfactants and the proportions of the anionic or nonionic emulsifiers, in each case in wt .-% based on the total mass of the composition added. In other words, for the purpose of determining the proportion by weight, the corresponding emulsifiers are considered as surfactants.

The aqueous detergents or cleaning agents according to the invention, which are also described in more detail above, are preferably highly fluid, such as water-thin, and preferably each have a dynamic viscosity of <100 mPa s, preferably <10 mPa s, each measured with one Brookfield rotary viscometer, spindle LV1 at 100 rpm and a temperature of 20 ° C. Preferably, the dynamic viscosity is determined in accordance with ISO 1652 (IS01652: 201 1) or analogously or mutatis mutandis according to this provision.

Accordingly, an inventive or preferred detergent or cleaning agent composition according to the invention, comprising: a composition opacifying amount of particles of one or more waxes each selected from the group consisting of montan wax, carnauba wax and mixtures thereof, preferably each selected from carnauba wax or a mixture of carnauba wax and montan wax, wherein 85% by volume or more of Particles of these waxes have a measured by laser diffraction particle size of <15 μιη, wherein the dynamic viscosity of the composition <100 mPa s, preferably <10 mPa s, each measured with a Brookfield rotational viscometer, spindle LV1 at 100 rpm and a temperature of 20 ° C

and preferably

In our own experiments it was possible to show that electrolyte-containing washing or cleaning agent compositions according to the invention remained sedimentation-stable over a period of several months, even in the above-mentioned high dilution under conditions which are relevant to practice.

The present invention also encompasses the use of one or more waxes, each selected from the group consisting of montan wax, carnauba wax and mixtures thereof, as opacifiers in aqueous washing or cleaning compositions.

All embodiments and combinations given above for the inventive detergent or cleaning composition, including the respective embodiments and combinations given in each case, apply without restriction and, if appropriate, also analogously to the above-mentioned use according to the invention, and vice versa. Preference is given to an aforementioned inventive or preferred use according to the invention, wherein the one or more waxes are each selected from the group consisting of carnauba wax and mixtures of carnauba wax with montan wax.

Further preferred according to the invention is an aforementioned inventive or preferred use according to the invention, wherein the one or more waxes are each in particulate form, with 85% by volume or more of the particles of these waxes having a particle size of <15 μm measured by laser diffraction ,

Also preferred is an aforementioned inventive or preferred use according to the invention, wherein the aqueous washing or cleaning agents additionally comprise sodium carbonate.

Particularly preferred is the inventive or preferred inventive use of a wax or more waxes, each selected from the group consisting of montan wax, carnauba wax and mixtures thereof, as opacifying agents in aqueous washing or cleaning compositions comprising sodium carbonate.

Likewise preferred is an aforementioned inventive or preferred use according to the invention of a wax or several waxes, each selected from the group consisting of montan wax, carnauba wax and mixtures thereof, as opacifying agents in aqueous washing or cleaning compositions,

in which

- One wax or several waxes are each in particulate form, wherein 85 vol .-% or more of the particles of these waxes have a measured by laser diffraction particle size of <15 μιη, and

preferably the total amount of particles of the one or more waxes in the composition is in the range from 0.01 to 1.0% by weight, preferably in the range from 0.01 to 0.5% by weight, especially ders preferably in the range of 0.01 to 0, 1 wt .-%, each based on the total mass of the composition.

Also preferred is an inventive or preferred inventive use of a wax or more waxes, each selected from the group consisting of montan wax, carnauba wax and mixtures thereof, as opacifying agents in aqueous washing or cleaning compositions, wherein - the dynamic viscosity of the compositions < 100 mPa s, preferably <10 mPa s, each measured with a Brookfield rotary viscometer, spindle LV1 at 100 rpm and a temperature of 20 ° C.

and

Preferably, the compositions comprise sodium carbonate, more preferably a proportion of sodium carbonate of at least 0.75 wt .-%, most preferably in the range of 0.75 wt .-% to 2.0 wt .-%, each based on the total mass the composition.

In many cases, preference is also given to an above inventive or preferred use according to the invention, wherein the detergent or cleaner compositions comprise: a proportion of one or more surfactants selected from the group consisting of anionic surfactants and nonionic surfactants, wherein the or at least one of the anionic surfactants is preferably selected from the group consisting of sodium laureth sulphates, sodium lauryl sulphates and surfactants which are obtainable by neutralization of fatty acids with alkanolamines and wherein the or at least one of the nonionic surfactants is preferably selected from the group consisting of

Lauryl / Myristyl Glucoside and PEG-4 Rapeseedamide,

and or

a proportion of sodium carbonate of at least 0.75 wt .-%, preferably a proportion of sodium carbonate in the range of 0.75 wt .-% to 2.0 wt .-% comprise, each based on the total mass of the compositions. The present invention furthermore also comprises a process for the preparation of a cloudy, aqueous detergent or cleaner composition, comprising the following step:

Mixing a turbid amount of particles of one or more waxes, each selected from the group consisting of montan wax, carnauba wax and mixtures thereof, wherein 85% by volume or more of the particles of these waxes have a particle size of <15 μιη measured by laser diffraction, with the other ingredients of the detergent or cleaner composition.

All of the embodiments and combinations given above for the inventive detergent composition or for the use according to the invention, including the respective configurations and combinations given in each case, apply without restriction and, if appropriate, also analogously to the method according to the invention indicated above, and vice versa.

Preferred is an aforementioned method according to the invention, wherein the opacifying amount of particles comprises carnauba wax or a mixture of carnauba wax with montan wax. Further preferred is a process according to the invention or a preferred process according to the invention, wherein the aqueous washing or cleaning agent additionally comprises sodium carbonate.

Also preferred is a process according to the invention or a preferred process according to the invention, wherein the total amount of particles of the one or more waxes in the composition is in the range from 0.01 to 1.0% by weight, preferably in the range from 0.01 to 0 , 5 wt .-%, particularly preferably in the range of 0.01 to 0.1 wt .-%, each based on the total mass of the composition.

Also preferred is a process according to the invention or a preferred process according to the invention, wherein the detergent or cleaner composition comprises: a proportion of one or more surfactants selected from the group consisting of anionic surfactants and nonionic surfactants, wherein the or at least one of the anionic surfactants is preferably selected from the group consisting of sodium laureth sulfates, sodium lauryl sulfates and surfactants obtainable by neutralization of fatty acids with

Alkanolamines and wherein the or at least one of the nonionic surfactants is preferably selected from the group consisting of lauryl / myristyl glucosides and PEG-4 rapeseedamides,

and or

- A proportion of sodium carbonate of at least 0.75 wt .-%, preferably a proportion of sodium carbonate in the range of 0.75 wt .-% to 2.0 wt .-%, each based on the total mass of the composition.

Particularly preferred is a process according to the invention or a preferred process for the preparation of a cloudy aqueous detergent or cleaner composition, comprising the following step:

Mixing a turbid amount of particles of a wax or more waxes, each selected from the group consisting of montan wax, carnauba wax and mixtures thereof, wherein 85 vol .-% or more of the particles of these waxes measured by laser diffraction particle size of <15 μιη with the other ingredients of the detergent composition comprising sodium carbonate.

Preference is furthermore given to a process according to the invention or preferred according to the invention for the preparation of a cloudy aqueous washing or cleaning composition, comprising the following step:

Mixing a turbid amount of particles of one or more waxes, each selected from the group consisting of montan wax, carnauba wax and mixtures thereof, wherein 85% by volume or more of the particles of these waxes have a particle size of <15 μιη measured by laser diffraction, with the other constituents of the detergent or cleaning composition, which preferably comprise sodium carbonate, wherein the total amount of particles of the one or more waxes in the composition in the range of 0.01 to 1, 0 wt .-%, preferably in the range of 0.01 to 0.5 wt .-%, particularly preferably in Range from 0.01 to 0, 1 wt .-%, each based on the total mass of the composition.

Also preferred is an inventive or preferred process according to the invention for the preparation of a cloudy aqueous washing or cleaning composition, comprising the following step:

Mixing a turbid amount of particles of a wax or more waxes, each selected from the group consisting of montan wax, carnauba wax and mixtures thereof, wherein 85 vol .-% or more of the particles of these waxes measured by laser diffraction particle size of <15 μιη with the other constituents of the detergent or cleaner composition, which preferably comprise sodium carbonate, the dynamic viscosity of the composition being <100 mPa s, preferably <10 mPa s, each measured with a Brookfield reagent.

Rotational viscometer, spindle LV1 at 100 rpm and a temperature of 20 ° C.

Examples:

The examples given below are intended to further explain and describe the present invention without limiting its scope.

Aqueous detergent or cleaning compositions having the representative formulations shown in Table 1 were prepared. The indicated clouding agents (styrene-acrylate copolymer: not according to the invention, ie comparison, montan wax or carnauba wax: in each case according to the invention) were each used in particulate form, the D50 value of the volume-related particle size distribution at the beginning of the storage tests for all opacifying agents each about 200 nm. The formulations 1.1 and 1.3 (each with sodium carbonate) are aqueous washing or cleaning agent according to the invention. The formulations 2.1 and 2.3 are aqueous washing or cleaning agent compositions according to the invention (each without sodium carbonate). Formulations 1.2 and 2.2 represent comparative compositions according to the invention.

The aqueous detergent and cleaner compositions shown in Table 1 were then subjected to a storage test at 23 ° C or 40 ° C for six months (see Table 2). The effects of this storage test on the particle sizes or particle size distributions of the particular opacifiers used are given in Table 2, together with observations on any sedimentation phenomena occurring in the compositions after completion of the storage test. In Table 2, measured values averaged from a plurality of measurements are shown.

As can be seen from the measured values and observations according to Table 2, the compositions according to the invention both with increased electrolyte content (with sodium carbonate, formulations 1.1, 1.3), and without increased electrolyte content (without sodium carbonate, formulations 2.1, 2.3) after six months of storage were both at normal conditions (23 ° C), as well as at elevated temperatures (40 ° C) sedimentation stable. On the other hand, the comparative compositions (formulations 1.2, 2.2) already exhibited sedimentation phenomena in the case of storage under normal conditions (23 ° C.) and both with increased electrolyte content (with sodium carbonate, formulation 1.2) and even without increased electrolyte content (formulation 2.2) due to breakdown of the clouding agent ,

Furthermore, it can be seen from the data in Table 2 that even in the comparison compositions without increased electrolyte content, the particle size of the opacifying agents increased significantly more during storage than in the corresponding inventive compositions. This effect was even more pronounced in the corresponding compositions with increased electrolyte contents (sodium carbonate): the differences between the maximum particle sizes of the opacifying agents between the comparison compositions and the compositions according to the invention (each after storage) were even greater (with the respective lower maximum particle sizes in the compositions of the invention). The statement "(FD &C)" in Table 1 indicates that the dye so designated falls within the criteria for additives in foods, medicines or cosmetics of the US Food, Drug & Cosmetic Act.

The indication "./." In Tables 1 and 2 indicates that there is no entry in the corresponding cell.

Table 1: Compositions (formulations) of aqueous washing or cleaning agents for storage tests

Table 2: Results of a storage test for six months with aqueous detergent or cleaner compositions

Claims

Claims:

An aqueous washing or cleaning composition comprising a composition clouding amount of one or more wax particles each selected from the group consisting of montan wax, carnauba wax and mixtures thereof, wherein 85% by volume or more of the particles thereof Waxes have a measured by laser diffraction particle size of <15 μιη own.

2. The composition of claim 1, wherein

the amount of carnauba wax particles clouding the composition or a mixture of carnauba wax with montan wax

and or

the composition additionally comprises sodium carbonate.

3. A composition according to any one of the preceding claims, wherein

90 vol .-% or more, preferably 95 vol .-% or more, the particles of a wax or more waxes, each selected from the group consisting of montan wax, carnauba wax and mixtures thereof, a particle size of <15 μιη own, preferably one Particle size of <12 μιη, more preferably a particle size of <10 μιη, most preferably a particle size of <7 μιη, most preferably a particle size of <1, 0 μιη.

4. Composition according to one of the preceding claims, wherein

90% by volume or more, preferably 95% by volume or more, of the particles of one or more waxes each selected from the group consisting of montan wax, carnauba wax and mixtures thereof, a particle size in the range of 0.1 to 15 μιη, preferably a particle size in the range of 0, 1 to 12 μιη, more preferably a particle size in the range of 0, 1 to 10 μιη, most preferably a particle size in the range of 0.1 to 7 μιη, most preferably a particle size in the range of 0.1 to 1, 0 μιη. A composition according to any one of the preceding claims, wherein the total amount of particles of one or more waxes, each selected from the group consisting of montan wax, carnauba wax and mixtures thereof, in the composition is in the range 0.01 to 1.0% by weight. is preferably in the range of 0.01 to 0.7 wt .-%, more preferably in the range of 0.01 to 0.5 wt .-%, most preferably in the range of 0.01 to 0, 1 wt. -%, in each case based on the total mass of the composition.

Composition according to one of the preceding claims, comprising a proportion of one or more surfactants selected from the group consisting of anionic surfactants and nonionic surfactants, wherein the or at least one of the anionic surfactants is preferably selected from the group consisting of sodium laureth sulfate, Sodium lauryl sulfates and surfactants obtainable by neutralization of fatty acids with alkanolamines, and wherein the or at least one of the nonionic surfactants is preferably selected from the group consisting of lauryl / myristyl glucosides and PEG-4 rapeseedamides,

and or

a proportion of sodium carbonate of at least 0.75% by weight, based on the total mass of the composition, preferably comprising a proportion of sodium carbonate in the range from 0.75% by weight to 2.0% by weight,

and or

an emulsifier or emulsifiers, preferably selected from the group consisting of anionic emulsifiers and nonionic emulsifiers.

A composition according to any one of the preceding claims comprising

Water, preferably in an amount in the range of 90 to 97% by weight, particularly preferably in the range of 92 to 96 wt .-%, each based on the total mass of the composition; one or more surfactants selected from the group consisting of anionic surfactants and nonionic surfactants, wherein the or at least one of the anionic surfactants is preferably selected from the group consisting of sodium laureth sulphates, sodium lauryl sulphates and surfactants obtainable by neutralization of fatty acids with alkanolamines and wherein the or at least one of the nonionic surfactants is preferably selected from the group consisting of lauryl / myristyl glucosides and PEG-4 rapeseedamides, preferably in an amount in the range of 1, 5 to 6.0 wt .-%, particularly preferably in the range of 2.0 to 4.0 wt .-%, each based on the total mass of the composition;

Sodium carbonate, preferably in an amount in the range of 0.75 to 2.0 wt .-%, particularly preferably in the range of 0.8 to 1, 5 wt .-%, each based on the total mass of the composition; a composition clouding amount of particles of one or more waxes, each selected from the group consisting of montan wax, carnauba wax and mixtures thereof, wherein 85 vol .-% or more of the particles of these waxes have a measured by laser diffraction particle size of <15 μιη , preferably in a total amount in the range of 0.01 to 1, 0 wt .-%, particularly preferably in the range of 0.01 to 0.5 wt .-%, most preferably in the range of 0.01 to 0.1 Wt .-%, each based on the total mass of the composition;

and

optionally further constituents, preferably in a total amount of up to 2.5 wt .-%, particularly preferably of up to 2.0 wt .-%, each based on the total mass of the composition.

Composition according to one of the preceding claims, whose dynamic viscosity is <100 mPa s, preferably <10 mPa s, each measured with a Brookfield rotary viscometer, spindle LV1 at 100 rpm and a temperature of 20 ° C. Use of a wax or a plurality of waxes, each selected from the group consisting of montan wax, carnauba wax and mixtures thereof, as clouding agents in aqueous washing or cleaning compositions.

Use according to claim 9, wherein

the one wax or the several waxes are each present in particulate form, wherein 85 vol .-% or more of the particles of these waxes have a measured by laser diffraction particle size of <15 μιη and

Preferably, the total amount of particles of the one or more waxes in the compositions in the range of 0.01 to 1, 0 wt .-%, preferably in the range of 0.01 to 0.5 wt .-%, particularly preferably in Range from 0.01 to 0, 1 wt .-%, each based on the total mass of the compositions,

and or

the aqueous washing or cleaning agent compositions comprise sodium carbonate,

and or

the one or more waxes are each selected from the group consisting of carnauba wax and mixtures of carnauba wax with montan wax.

Use according to any one of claims 9 to 10, wherein the detergent or cleaner compositions comprise:

a proportion of one or more surfactants selected from the group consisting of anionic surfactants and nonionic surfactants, wherein the or at least one of the anionic surfactants is preferably selected from the group consisting of sodium laureth sulfates, sodium lauryl sulfates and surfactants which are obtainable by neutralization of fatty acids with alkanolamines and wherein the or at least one of the nonionic surfactants is preferably selected from the group consisting of lauryl / myristyl glucosides and PEG-4 rapeseedamides, and or

a proportion of sodium carbonate of at least 0.75 wt .-%, preferably a proportion of sodium carbonate in the range of 0.75 wt .-% to 2.0 wt .-% comprise, each based on the total mass of the compositions.

A process for the preparation of a cloudy aqueous detergent composition, comprising the following step:

Mixing a turbid amount of particles of one or more waxes, each selected from the group consisting of montan wax, carnauba wax and mixtures thereof, wherein 85% by volume or more of the particles of these waxes have a particle size of <15 μιη measured by laser diffraction, with the other ingredients of the detergent composition.

The method of claim 12, wherein

the cloudy amount of carnauba wax particles or a mixture of carnauba wax with montan wax,

and or

the aqueous detergent composition comprises sodium carbonate as another ingredient.

A method according to any one of claims 12 to 13, wherein the total amount of particles of the one or more waxes in the composition is in the range of 0.01 to 1.0% by weight, preferably in the range of 0.01 to 0, 5 wt .-%, particularly preferably in the range of 0.01 to 0, 1 wt .-%, each based on the total mass of the composition.

A method according to any one of claims 12 to 14, wherein the detergent composition

a proportion of one or more surfactants selected from the group consisting of anionic surfactants and nonionic surfactants, wherein the or at least one of the anionic surfactants is preferably selected from the group consisting of sodium laureth sulfates, sodium lauryl sulfates and surfactants which are obtainable by neutralization of fatty acids with alkanolamines and wherein the or at least one of the nonionic surfactants is preferably selected from the group consisting of lauryl / myristyl glucosides and PEG- 4 rapeseedamides,

and or

a proportion of sodium carbonate of at least 0.75 wt .-%, preferably a proportion of sodium carbonate in the range of 0.75 wt .-% to 2.0 wt .-%, each based on the total mass of the composition.