Manufacturing process for detergents or cleaning agents

Abstract

Process for the preparation of a washing or cleaning-active preparation containing, based on its total weight a) 10 to 50% by weight of sugar; b) 20 to 70 wt% polyalkylene glycol; c) 8 to 40% by weight of washing or cleaning active ingredient; d) optionally 1 to 12 wt.% stabilizer from the group of non-ionic surfactants; e) 5 to 20 wt% water; comprising the steps: i) providing an aqueous sugar solution with a sugar content above 50% by weight; ii) optionally incorporating a stabilizer into the aqueous sugar solution; iii) introducing polyalkylene glycol into the aqueous sugar solution; iv) incorporating washing or cleaning active ingredient into the polyalkylene glycol-containing mixture to form a liquid washing or cleaning active preparation; v) portioning the liquid washing or cleaning preparation; vi) solidification of the portioned liquid washing or cleaning preparation to form a solid washing or cleaning preparation.

Description

The present invention relates to a process for the preparation of detergents or cleaners. In particular, the application relates to a multistage production process, in the course of which carrier materials and active substances are processed to form a storable, easily meterable and rapidly curing pourable compound.The confection and supply forms of washing or cleaning agents are subject to continuously changing requirements. A focus has been on the convenient metering of washing or cleaning agents by the consumer for some time and the simplification of the working steps required for carrying out a washing or cleaning process. A solution offers pre-sized washing or cleaning agents, for example foil bags with one or more receiving chambers for solid or liquid preparations or washing or cleaning agent tablets.The advantages of solid pre-sized washing or cleaning agents consist, inter alia, in the extensive reduction of solvents which are not active in washing or cleaning and, in the case of tablets or castings, the temporally stable three-dimensional shape.They are used as active washing or cleaning castings as a constituent of multi-phase laundry detergent or cleaning agent tablets or as constituents of the laundry detergent or cleaning agent in water-soluble film bags.Detergents or cleaning agents in the form of well tablets with cast cores are described, for example, in German patent applications DE 199 45 849 A1 and DE 10 2015 213 939 A1.Pourable washing- or cleaning-active preparations must have a number of properties for efficient processing in industrial scale processes. These include a long-lasting chemical and physical stability of the liquid detergent- or cleaning-active preparation prior to processing. Neither must the ingredients of the molten preparations decompose during storage before further processing despite the elevated storage temperatures, nor must the rheological properties of the molten preparations fundamentally change during their storage, for example.During their portioning and formulation, pourable washing- or cleaning-active preparations are preferably distinguished by an easily influenceable dripping behavior.Following portioning, the pourable washing- or cleaning-active preparations should cure in short periods of time to give solid bodies having dry and nontacky, preferably glossy, surfaces. Defective process products should ideally be recycled in a simple manner, for example by melting, and be able to be recycled into the production process.Against this background, the object of the application was to provide an efficient method for producing pourable washing- or cleaning-active preparations which can be stored in stable fashion over periods of time relevant for industrial production, solidify in a sufficiently short time and form castings with appealing haptics and feel. The resulting castings should also be easily recycled.A suitable method for achieving this object is a method for producing a detergent- or cleaning-active preparation comprising, based on its total weight, a) 10 to 50% by weight of sugar; b) 20 to 70% by weight of polyalkylene glycol; c) 8 to 40% by weight of detergent- or cleaning-active active ingredient; d) optionally 1 to 12% by weight of stabilizer from the group of the nonionic surfactants; e) 5 to 20% by weight of water; comprising the steps: i) providing an aqueous sugar solution having a weight fraction of sugar above 50% by weight; ii) optionally introducing a stabilizer into the aqueous sugar solution; iii) introducing polyalkylene glycol into the aqueous sugar solution; iv) introducing detergent- or cleaning-active ingredient into the aqueous sugar solution; v) portioning of the liquid washing- or cleaning-active preparation; vi) solidifying the portioned liquid washing- or cleaning-active preparation to form a solid washing- or cleaning-active preparation.The claimed process relates to the production of washing- or cleaning-active preparations based on a sugar- and polyethylene glycol-containing carrier material. As a first optional constituent, the detergent- or cleaning-active preparations comprise, based on their total weight, from 10 to 50% by weight, preferably from 20 to 45% by weight and in particular from 25 to 40% by weight, of sugar. Corresponding weight fractions have proven to be advantageous for the processability of the process mixture, the curing properties of the liquid detergent- or cleaning-active preparation and the physical properties of the solid detergent- or cleaning-active preparation, in particular the hardness and appearance thereof.The term "sugar" denotes single and multiple sugars, i.e. monosaccharides and oligosaccharides in which 2 to 6 monosaccharides are acetal-like connected to one another. "sugars" in the context of the present invention are thus monosaccharides, disaccharides, trisaccharides, tetra-, penta- and hexasaccharides. Preferred methods provide the use of sugars from the group of monosaccharides, disaccharides, trisaccharides, tetrasaccharides, pentasaccharides and hexasaccharides. Owing to their availability and their processability, the use of disaccharides is particularly preferred.Monosaccharides which can be used as sugars in the context of the claimed process are, for example, the tetroses D(-)-erythrose and D(-)-threose and D(-)-erythrulose, the pentoses D(-)-ribose, D(-)-ribulose, D(-)-arabinose, D(+)-xylose, D(-)-xylulose and D(-)-lyxose and the hexoses D(+)-allose, D(+)-altrose, D(+)-glucose, D(+)-mannose, D(-)-gulose, D(-)-idose, D(+)-galactose, D(+)-Talose, D(+)-psicose, D(-)-fructose, D(+)-sorbose and D(-)-tagatose. The monosaccharides used with particular preference are: D-glucose, D-galactose, D-mannose, D-fructose, L-arabinose, D-xylose, D-ribose and 2-deoxy-D-ribose, in particular D-glucose.Examples of disaccharides include sucrose (sucrose, sucrose), trehalose, lactose (lactose), lactulose, maltose (malt sugar), cellobiose (cellulose degradation product), gentobiose, melibiose and turanose. In preferred methods, the sugar is selected from the group of disaccharides, preferably from the group sucrose, trehalose, lactose, maltose and cellobiose, particularly preferably from the group sucrose.Polyalkylene glycol is a second optional constituent of the detergent- or cleaning-active preparations produced according to the invention. The proportion by weight of the polyalkylene glycol to the total weight of the preparations is 20 to 70% by weight, preferably 25 to 60% by weight and in particular 30 to 50% by weight.Preferred polyalkylene glycols are selected from the group of polyethylene glycols and polypropylene glycols, preferably from the group of polyethylene glycols.Polyethylene glycols from the group of polyethylene glycols having an average molecular weight (Mn) of >1500 g / mol, preferably an average molecular weight of 3,000 to 15,000 g / mol, even more preferably having an average molecular weight of 3,000 to 9,000 g / mol, further preferably having an average molecular weight of 4000 to 8000 g / mol and in particular having an average molecular weight of 4000 to 6000 g / mol have proven advantageous for the storage capacity of the liquid detergent or cleaning-active preparation and for their curing properties. When, in the context of this application, "average molecular weight of polyalkylene glycols" is referred to, these data relate in each case to the number-average molecular weights (Mn) which result from the OH number measured according to DIN 53240-1:2012-07 by calculation.The active washing- or cleaning-active ingredients form a third group of optional process derivatives. Their proportion by weight to the total weight of the active washing or cleaning preparations produced is from 8 to 40% by weight, preferably from 10 to 30% by weight and in particular from 12 to 20% by weight.Although the selection of the active washing- or cleaning-active ingredient is not subject to any substantial restriction, active washing- or cleaning-active ingredients are selected from the group of builders, the active washing- or cleaning-active polymers, the corrosion inhibitors and mixtures thereof, because of their simple processing.The group of preferred builders comprises in particular builders from the group of aminocarboxylic acids and their salts, particularly preferably from the group consisting of methyl glycine diacetic acid (MGDA) and its salts, glutamine diacetic acid (GLDA) and its salts, ethylenediamine diacetic acid (EDDS) and its salts, imino disuccinic acid (IDS) and its salts, and imino diacetic acid (IDA) and its salts. The use of methyl glycine diacetic acid (MGDA) and its salts is very particularly preferred.The group of the wash- or cleaning-active polymers includes in particular the polycarboxylates. The active substance with washing or cleaning activity is preferably selected from the group of polycarboxylates, in particular the copolymeric polyacrylates, particularly preferably the copolymeric polyacrylates containing sulphonic acid groups.The copolymers may have two, three, four or more different monomer units. Preferred copolymeric polysulfonates contain, in addition to monomer(s) containing sulfonic acid groups, at least one monomer from the group of unsaturated carboxylic acids.As a further preferred active washing or cleaning active ingredient, the active washing or cleaning compositions produced according to the invention comprise an active washing or cleaning ingredient from the group of glass corrosion inhibitors, preference being given to glass corrosion inhibitors from the group of water-soluble zinc salts, in particular from the group of zinc sulfate and zinc acetate, but especially zinc acetate.To improve the processability of the liquid detergent- or cleaning-active preparation and its curing properties, the detergent- or cleaning-active preparation preferably comprises a stabilizer from the group of nonionic surfactants. The proportion by weight of the stabilizer relative to the total weight of the detergent- or cleaning-active preparation is preferably 1 to 12% by weight, particularly preferably 2 to 10% by weight.Preferred stabilizers are solid at room temperature. Stabilizers from the group of the nonionic surfactants having a melting point above 30° C., in particular in the range from 40 to 60° C., have proven to be particularly suitable. The use of solid surfactants has proven advantageous both for the solidification and for the haptic properties of the detergent- or cleaning-active preparation. The melting point of the surfactant (in ° C.) is determined by means of differential calorimetry (DSC) according to ISO standard 11357. In this context, the melting point in the context of the invention is considered to be the peak temperature determinable by means of DSC in the second heating run. This is the temperature at which the peak / maximum deflection (on the y-axis) is present in the DSC diagram. If a plurality of peaks-within the scope of 5% of the maximum deflection observed in the second heating run-are present in a surfactant (commercial product), the temperature of the first peak is regarded as the melting point according to the invention.Suitable surfactants are, in particular, linear, saturated fatty acid alcohol ethoxylates having 14 to 18 carbon atoms in the alkyl chain and 10 to 100 ethylene oxide units, which are preferably not end group-capped.Further preferred nonionic surfactants are ethoxylated monohydroxyalkanols or alkyl phenols which additionally have polyoxyethylene-polyoxypropylene block copolymer units. The alcohol or alkylphenol part of such nonionic surfactant molecules preferably constitutes more than 30% by weight, more preferably more than 50% by weight and in particular more than 70% by weight, of the total molar mass of such nonionic surfactants. Preferred agents are characterized in that they contain ethoxylated and propoxylated nonionic surfactants in which the propylene oxide units in the molecule make up up up to 25 wt %, preferably up to 20 wt % and in particular up to 15 wt % of the total molar mass of the nonionic surfactant.Stabilizers from the group of the nonionic surfactants of the formula R 1 O[CH 2 CH(CH 3) O] x[ CH 2 CH 2 O] y[ CH 2 CH(CH 3) O] z R2(I) have proven particularly suitable, in whichR 1 is a linear or branched aliphatic hydrocarbon radical having 4 to 22 carbon atoms,R 2 denotes a preferably hydroxylated, linear or branched hydrocarbon radical having 2 to 26 carbon atoms,x and z are values from 0 to 40 andy is a value of at least 15.Very particular preference is given to stabilizers from the group of the nonionic surfactants of the formula R 1 O[CH 2 CH 2 O] y H (II) in whichR 1 is a linear or branched aliphatic hydrocarbon radical having 4 to 22 carbon atoms,y is a value from 12 to 100, preferably from 15 to 50 and in particular from 20 to 40.Particularly storage-stable liquid detergent- or cleaning-active preparations having good curing properties and an advantageous appearance after solidification have detergent- or cleaning-active preparations whichwashing- or cleaning-active ingredient from the group of aminocarboxylic acid, preferably from methylglycinediacetic acid (MGDA) or salts thereof, andstabilizer from the group of the nonionic surfactants of the formula R 1 O[CH 2 CH 2 O] y H (II) in which1 R is a linear or branched aliphatic hydrocarbon radical having 4 to 22 carbon atoms,◯ y is a value of from 12 to 100, preferably from 15 to 50 and in particular from 20 to 40.In this embodiment, a weight ratio of aminocarboxylic acid to stabilizer of 6:1 to 1:1, preferably of 5:1 to 3:2 and in particular of 4:1 to 2:1, has proven to be particularly advantageous from the technical point of view.The detergent-active or cleaning-active preparation is low in water. Preferred washing- or cleaning-active preparations contain, based on their total weight, 5 to 15% by weight, preferably 5 to 12% by weight, of water.The detergent-active preparation is furthermore preferably free from organic solvents. By reducing the proportion of organic solvents, the solidification times of the detergent- or cleaning-active preparation could be shortened. "Free of", as used in this context, means that the corresponding constituent is present in the preparation in an amount <1% by weight, preferably <0.1% by weight, more preferably <0.01% by weight. In particular, such a component is then not intentionally added. The group of organic solvents from which the detergent- or cleaning-active preparation is free includes, in particular, ethanol, n-propanol, i-propanol, butanol, glycol, propanediol, butanediol, methylpropanediol, glycerol and mixtures thereof.For their visual evaluation, preferred washing- or cleaning-active preparations preferably contain dye f). The proportion by weight of the dye relative to the total weight of the detergent or cleaning-active preparation is preferably 0.05 to 0.5% by weight, preferably 0.1 to 0.3% by weight.In summary, processes for preparing a detergent- or cleaning-active preparation comprising, based on the total weight thereof, a) 10 to 50% by weight of sucrose; b) 20 to 70% by weight of polyethylene glycol having an average molecular weight of 4000 to 6000 g / mol; c) 12 to 20% by weight of methylglycinediacetic acid (MGDA) and salts thereof; d) 2 to 10% by weight of stabilizer from the group of the nonionic surfactants of the formula (II) R 1 O[CH 2 CH 2 O] y H, in which1 R is a linear or branched aliphatic hydrocarbon radical having 4 to 22 carbon atoms,◯ y is a value from 12 to 100, preferably from 15 to 50 and in particular from 20 to 40;e) 5 to 12% by weight of water; comprising the steps: i) providing an aqueous sucrose solution with a sucrose weight fraction above 50% by weight; ii) introducing a stabilizer into the aqueous sucrose solution; iii) introducing polyethylene glycol into the aqueous sucrose solution; iv) introducing methyl glycine diacetic acid (MGDA) or its salts into the polyalkylene glycol-containing mixture to form a liquid detergent or cleaning-active preparation; v) portioning the liquid detergent or cleaning-active preparation; vi) solidifying the portioned liquid detergent or cleaning-active preparation to form a solid detergent or cleaning-active preparation.The composition of some preferably prepared washing- and cleaning-active preparations can be found in the following tables (data in % by weight, based on the total weight of the preparation, unless otherwise stated).Sugar Sugar10 50 to 5020 up to 4520 up to 4525 up to 40Polyalkylene glycol20 up to 7025 up to 6025 up to 6030 50 to 50Washing- or Cleaning-Active Ingredient8 up to 408 up to 4010 from 30 to 3012 from 20 to 20Water5 from 20 to 205 from 20 to 205 from 15 to 155 to 12MiscAD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 ADAD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 ADAD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 ADAD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 ADSugar Sugar10 50 to 5020 up to 4520 up to 4525 up to 40Polyalkylene glycol20 up to 7025 up to 6025 up to 6030 50 to 50Washing- or Cleaning-Active Ingredient8 up to 408 up to 4010 from 30 to 3012 from 20 to 20Stabilizer 1)1 to 121 to 122 from 10 to 102 from 10 to 10Water5 from 20 to 205 from 20 to 205 from 15 to 155 to 12MiscAD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 ADAD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 ADAD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 ADAD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 ADSugar Sugar10 50 to 5020 up to 4520 up to 4525 up to 40Polyethylene glycol20 up to 7025 up to 6025 up to 6030 50 to 50Washing- or Cleaning-Active Ingredient8 up to 408 up to 4010 from 30 to 3012 from 20 to 20Water5 from 20 to 205 from 20 to 205 from 15 to 155 to 12MiscAD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 ADAD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 ADAD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 ADAD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 ADSugar Sugar10 50 to 5020 up to 4520 up to 4525 up to 40Polyethylene glycol20 up to 7025 up to 6025 up to 6030 50 to 50Washing- or Cleaning-Active Ingredient8 up to 408 up to 4010 from 30 to 3012 from 20 to 20Stabilizer 1)1 to 121 to 122 from 10 to 102 from 10 to 10Water5 from 20 to 205 from 20 to 205 from 15 to 155 to 12MiscAD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 ADAD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 ADAD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 ADAD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 ADSucrose Sucrose Sucrose10 50 to 5020 up to 4520 up to 4525 up to 40Polyethylene glycol20 up to 7025 up to 6025 up to 6030 50 to 50Washing- or Cleaning-Active Ingredient8 up to 408 up to 4010 from 30 to 3012 from 20 to 20Water5 from 20 to 205 from 20 to 205 from 15 to 155 to 12MiscAD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 ADAD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 ADAD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 ADAD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 ADSucrose Sucrose Sucrose10 50 to 5020 up to 4520 up to 4525 up to 40Polyethylene glycol20 up to 7025 up to 6025 up to 6030 50 to 50Washing- or Cleaning-Active Ingredient8 up to 408 up to 4010 from 30 to 3012 from 20 to 20Stabilizer 1)1 to 121 to 122 from 10 to 102 from 10 to 10Water5 from 20 to 205 from 20 to 205 from 15 to 155 to 12MiscAD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 ADAD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 ADAD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 ADAD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 ADSucrose Sucrose Sucrose10 50 to 5020 up to 4520 up to 4525 up to 40Polyethylene glycol20 up to 7025 up to 6025 up to 6030 50 to 50Aminocarboxylic acid 2)8 up to 408 up to 4010 from 30 to 3012 from 20 to 20Water5 from 20 to 205 from 20 to 205 from 15 to 155 to 12MiscAD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 ADAD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 ADAD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 ADAD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 ADSucrose Sucrose Sucrose10 50 to 5020 up to 4520 up to 4525 up to 40Polyethylene glycol20 up to 7025 up to 6025 up to 6030 50 to 50Aminocarboxylic acid 2)8 up to 408 up to 4010 from 30 to 3012 from 20 to 20Stabilizer 1)1 to 121 to 122 from 10 to 102 from 10 to 10Water5 from 20 to 205 from 20 to 205 from 15 to 155 to 12MiscAD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 ADAD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 ADAD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 ADAD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 ADSucrose Sucrose Sucrose10 50 to 5020 up to 4520 up to 4525 up to 40Polyethylene glycol 3)20 up to 7025 up to 6025 up to 6030 50 to 50Washing- or Cleaning-Active Ingredient8 up to 408 up to 4010 from 30 to 3012 from 20 to 20Water5 from 20 to 205 from 20 to 205 from 15 to 155 to 12MiscAD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 ADAD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 ADAD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 ADAD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 ADSucrose Sucrose Sucrose10 50 to 5020 up to 4520 up to 4525 up to 40Polyethylene glycol 3)20 up to 7025 up to 6025 up to 6030 50 to 50Washing- or Cleaning-Active Ingredient8 up to 408 up to 4010 from 30 to 3012 from 20 to 20Stabilizer 1)1 to 121 to 122 from 10 to 102 from 10 to 10Water5 from 20 to 205 from 20 to 205 from 15 to 155 to 12MiscAD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 ADAD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 ADAD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 ADAD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 ADSucrose Sucrose Sucrose10 50 to 5020 up to 4520 up to 4525 up to 40Polyethylene glycol 3)20 up to 7025 up to 6025 up to 6030 50 to 50Aminocarboxylic acid 2)8 up to 408 up to 4010 from 30 to 3012 from 20 to 20Water5 from 20 to 205 from 20 to 205 from 15 to 155 to 12MiscAD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 ADAD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 ADAD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 ADAD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 ADSucrose Sucrose Sucrose10 50 to 5020 up to 4520 up to 4525 up to 40Polyethylene glycol 3)20 up to 7025 up to 6025 up to 6030 50 to 50Aminocarboxylic acid 2)8 up to 408 up to 4010 from 30 to 3012 from 20 to 20Stabilizer 1)1 to 121 to 122 from 10 to 102 from 10 to 10Water5 from 20 to 205 from 20 to 205 from 15 to 155 to 12MiscAD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 ADAD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 ADAD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 ADAD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 ADSucrose Sucrose Sucrose10 50 to 5020 up to 4520 up to 4525 up to 40Polyethylene glycol 3)20 up to 7025 up to 6025 up to 6030 50 to 50Aminocarboxylic acid 2)8 up to 408 up to 4010 from 30 to 3012 from 20 to 20Stabilizer 4)1 to 121 to 122 from 10 to 102 from 10 to 10Water5 from 20 to 205 from 20 to 205 from 15 to 155 to 12MiscAD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 ADAD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 ADAD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 ADAD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD 100 AD1) stabilizer from the group of the nonionic surfactants 2) aminocarboxylic acid, preferably from the group consisting of methyl glycine diacetic acid (MGDA) and its salts, glutamine diacetic acid (GLDA) and its salts, ethylenediamine diacetic acid (EDDS) and its salts, iminodisuccinic acid (IDS) and its salts, and iminodiacetic acid (IDA) and its salts, and in particular preferably from the group consisting of methyl glycine diacetic acid (MGDA) and its salts. 3) polyethylene glycol having an average molecular weight (Mn) of >1500 g / mol, preferably an average molecular weight of 3,000 to 15,000 g / mol, even more preferably with an average molecular weight of 3,000 to 9,000 g / mol, even more preferably with an average molecular weight of 4000 to 8000 g / mol and in particular with an average molecular weight of 4000 to 6000 g / mol 4) stabilizer from the group of the nonionic surfactants of the formula R 1 O[CH 2 CH 2 O] y H, in whichR 1 is a linear or branched aliphatic hydrocarbon radical having 4 to 22 carbon atoms,y is a value from 12 to 100, preferably from 15 to 50 and in particular from 20 to 40.The preparation of the detergent- or cleaning-active preparation begins in step i) with the provision of an aqueous sugar solution having a weight fraction of sugar above 50% by weight. In order to achieve shortened curing times and an improved appearance of the optionally colored, cured, washing- or cleaning-active preparation, it has proven advantageous if the aqueous sugar solution in step i) has a weight fraction of sugar of 60 to 95% by weight, preferably of 70 to 90% by weight. The sugar solution can be provided continuously or discontinuously. A discontinuous process procedure (batch) is preferred.When carrying out the multistage production process, temperature control of the mixture batch has proven advantageous for its processability and meterability. Preferably, the aqueous sugar solution in step i) has a temperature above 50° C., preferably above 70° C., and in particular in the range from 85 to 98° C.For the aforementioned reasons, an elevated temperature is also preferred in optional step ii), wherein the aqueous sugar solution in step ii) preferably has a temperature above 50° C., particularly preferably above 70° C. and in particular in the range from 85 to 98° C.If a stabilizer is added to the mixture batch, the sequence of process steps ii) and iii) can vary:the process step ii) can be carried out before the process step iii);the process step ii) can be carried out simultaneously with the process step iii);the process step ii) can be carried out after the process step iii).For improved process control, it has proven advantageous to carry out process step ii) before or after process step iii).In step iii), the temperature of the aqueous sugar solution is preferably above 85° C., particularly preferably above 90° C. and in particular in the range from 95 to 110° C.To support the further process sequence, in particular to ensure constant product properties, the liquid polyalkylene glycol-containing mixture is homogenized in step iii) before step iv) preferably for a period of 5 to 60 minutes, particularly preferably of 10 to 40 minutes. Homogenization is effected with particular preference by stirring.In step iv), the elevated temperatures are preferably maintained. The liquid detergent- or cleaning-active preparation in step iv) therefore preferably has a temperature above 85° C., particularly preferably above 90° C., and in particular in the range from 95 to 110° C.Regardless of the chemical nature of the active washing or cleaning agent, the active washing or cleaning agent is preferably added in portions in step iv). The portionwise addition facilitates homogenization and thereby shortens the homogenization phase of the liquid detergent- or cleaning-active preparation, preferably carried out in step iv) and before step v), which homogenization phase preferably lasts for a duration of from 20 to 120 minutes, particularly preferably from 30 to 90 minutes. Homogenization is again effected with particular preference by stirring.In step v) of the method, the liquid detergent- or cleaning-active preparation is portioned. In portioning, the liquid detergent- or cleaning-active preparation preferably has a temperature above 85° C., particularly preferably in the range from 85 to 95° C.The portioning serves for the removal of a portion of the active-substance-containing aqueous sugar solution obtained in step iv). The separated portion of the portioned liquid washing- or cleaning-active preparation is subsequently solidified in step vi) to form a solid washing- or cleaning-active preparation. The liquid detergent- or cleaning-active preparation is preferably cooled for this purpose.The solid obtained in step v) has a stable three-dimensional shape. The manner of portioning the active-substance-containing aqueous sugar solution in step iv) can therefore be used to influence the three-dimensional shape of the process end product and its appearance.The liquid detergent or cleaning-active preparation is preferably portioned onto a planar surface in step v). Portioning and subsequent curing on a planar surface facilitate later absorption and further processing of the solid detergent- or cleaning-active preparation obtained, in comparison with portioning and curing in a trough.In a first alternative to the method, the liquid detergent- or cleaning-active preparation in step v) is portioned onto a cooling surface, preferably onto a revolving steel strip. Portioning is effected, for example, by means of a drop former. On the cooling surface, the droplets of the solid detergent or cleaning-active preparation discharged from the droplet former are consolidated to solid bodies. The time period between the dripping of the mixture onto the steel strip and the complete solidification is preferably between 25 and 500 seconds, particularly preferably between 60 and 420 seconds and in particular between 120 and 360 seconds.Solidification of the mixture is preferably assisted and accelerated by cooling. The cooling of the portioned droplets can be effected directly or indirectly. For example, cooling by means of cold air can be used as direct cooling. However, indirect cooling of the droplets by cooling the underside of the dripping surface with cold water is preferred.In an alternative method variant, the liquid detergent or cleaning-active preparation in step v) is portioned into a preformed receiving cavity. Portioning into a receiving cavity enables the production of three-dimensional shapes which are not accessible due to the solidification of the liquid detergent- or cleaning-active preparation on a planar surface.The preformed receiving cavity can be a stable casting mold or a temporary casting mold (mogul casting). The detergent or cleaning-active preparation located in the receiving cavity is removed from the receiving cavity after its solidification and is further processed.If the solid washing- or cleaning-active preparation is the final product of the process, it can be packaged, for example, in bulk or sorted in an outer packaging.If the solid detergent- or cleaning-active preparation is an intermediate, this can be taken up and, for example, combined with further components to form a final process product. In a preferred variant of this process sequence, the liquid detergent or cleaning-active preparation is portioned in step v) into a preformed receiving cavity, wherein the solid detergent or cleaning-active preparation formed after solidification of the portioned liquid detergent or cleaning-active preparation is subsequently removed from the receiving cavity and transferred into the cavity of a detergent tablet or the receiving chamber of a water-soluble container.As a surface onto which the liquid detergent or cleaning-active preparation is portioned in step v), alternatively to the devices described above, the surface of a further detergent or cleaning agent can also be used. This procedure enables the combination of the solid washing- or cleaning-active preparation with further components without intermediate absorption and handling of the solid washing- or cleaning-active preparation as intermediate and is preferred on account of these efficiency advantages.In one embodiment of the method, the liquid detergent or cleaning-active preparation in step v) is portioned into the cavity of a detergent or cleaning agent tablet.In a further embodiment of the method, the liquid detergent- or cleaning-active preparation in step v) is portioned into the receiving chamber of a water-soluble container. The direct portioning into the receiving chamber of a water-soluble container and the subsequent curing in the receiving chamber are suitable for stabilizing the three-dimensional shape of the water-soluble container. This applies in particular when the liquid detergent- or cleaning-active preparation in step v) is portioned into a receiving chamber obtained by shaping a water-soluble film.If the liquid detergent or cleaning-active preparation is portioned in step v) into the receiving chamber of a water-soluble container, it is preferred to portion the liquid detergent or cleaning-active preparation onto the surface of a detergent or cleaning agent located in the receiving chamber of the water-soluble container. The washing or cleaning agent present in the water-soluble container is preferably in the form of a shaped body, a solidified melt or a powder. If the liquid detergent- or cleaning-active preparation is metered onto the surface of a shaped body, a solidified melt or a powder located in the water-soluble container, these are fixed in the water-soluble container and subsequent process steps such as optional sealing of the container or shrinkage of the water-soluble container material are simplified. The optics of the process product are improved by this procedure in that a product image uniform over a plurality of process products is achieved by the above-described fixing of the further components.In a preferred process variant, the solid detergent or cleaning-active preparation is enclosed in a further step vii) following step vi) by means of a water-soluble film. The solid detergent or cleaning-active preparation can be enclosed as a self-contained end product of the process in a water-soluble film. However, it is preferred if the solid washing- or cleaning-active preparation is enclosed as a component of a washing- or cleaning preparation, in particular as a filling of the cavity of a detergent tablet or as a filling of a water-soluble container obtained by shaping a water-soluble film with a water-soluble film.Surprisingly, it has been found that the solid detergent or cleaning-active preparation prepared according to the invention has a high temperature tolerance on shrinkage of the water-soluble film enclosing it and does not bleed up under the conditions of shrinkage nor lose its color or its gloss.A further subject matter of the application is therefore a method in the course of which the solid detergent- or cleaning-active preparation enclosed by a water-soluble film is transported by means of a transport device through a shrink tunnel and the water-soluble film is shrunk in the shrink tunnel. The shrinkage takes place preferably at a temperature of 120 to 290° C., preferably of 140 to 260° C. and in particular of 175 to 230° C.In summary, processes for preparing a detergent- or cleaning-active preparation comprising, based on the total weight thereof, a) 10 to 50% by weight of sucrose; b) 20 to 70% by weight of polyethylene glycol having an average molecular weight of 4000 to 6000 g / mol; c) 12 to 20% by weight of methylglycinediacetic acid (MGDA) or salts thereof; d) 2 to 10% by weight of stabilizer from the group of the nonionic surfactants formula (II) R 1 O[CH 2 CH 2 O] y H, in which1 R is a linear or branched aliphatic hydrocarbon radical having 4 to 22 carbon atoms,◯ y is a value from 12 to 100, preferably from 15 to 50 and in particular from 20 to 40;e) 5 to 12% by weight of water; comprising the steps: i) providing an aqueous sucrose solution with a sucrose weight fraction above 50% by weight; ii) introducing a stabilizer into the aqueous sucrose solution; iii) introducing polyethylene glycol into the aqueous sucrose solution; iv) introducing methyl glycine diacetic acid (MGDA) or its salts into the polyalkylene glycol-containing mixture to form a liquid detergent or cleaning-active preparation; v) portioning the liquid detergent or cleaning-active preparation; vi) solidifying the portioned liquid detergent or cleaning-active preparation to form a solid detergent or cleaning-active preparation. vii) enclosing the solid detergent or cleaning-active preparation by means of a water-soluble film; viii) shrinking the water-soluble film in a shrink tunnel; particularly preferably.The following objects are provided by this application, among other things: 1. process for producing a detergent- or cleaning-active preparation containing, based on its total weight, a) 10 to 50% by weight of sugar; b) 20 to 70% by weight of polyalkylene glycol; c) 8 to 40% by weight of detergent- or cleaning-active active ingredient; d) optionally 1 to 12% by weight of stabilizer from the group of the nonionic surfactants; e) 5 to 20% by weight of water; comprising the steps: i) providing an aqueous sugar solution having a weight fraction of sugar above 50% by weight; ii) optionally introducing a stabilizer into the aqueous sugar solution; iii) introducing polyalkylene glycol into the aqueous sugar solution; iv) introducing active washing- or cleaning-active ingredient into the polyalkylene glycol-containing mixture to form a liquid washing- or cleaning-active preparation; v) portioning the liquid washing- or cleaning-active preparation; vi) solidifying the portioned liquid washing- or cleaning-active preparation to form a solid washing- or cleaning-active preparation. 2. process according to item 1, wherein the detergent or cleaning-active preparation contains, based on its total weight, 20 to 45 wt. %, preferably 25 to 40 wt. %, of sugar. 3. The method according to any of the preceding points, wherein the sugar is selected from the group of monosaccharides, disaccharides, trisaccharides, tetrasaccharides, pentasaccharides and hexasaccharides, preferably from the group of dissaccharides. 4. the method according to any one of the preceding points, wherein the sugar is selected from the group of disaccharides, preferably from the group of sucrose, trehalose, lactose, maltose and cellobiose, preferably from the group of sucrose. 5. method according to one of the preceding points, wherein the detergent or cleaning-active preparation contains 25 to 60% by weight and in particular 30 to 50% by weight of polyalkylene glycol, based on its total weight. 6.The method according to any of the preceding points, wherein the polyalkylene glycol is selected from the group of polyethylene glycols and polypropylene glycols, preferably from the group of polyethylene glycols. 7.The method according to any one of the preceding points, wherein the polyalkylene glycol is selected from the group of polyethylene glycols, preferably from the group of polyethylene glycols having an average molecular weight (Mn) of >1500 g / mol, preferably an average molecular weight of 3,000 to 15,000 g / mol, even more preferably having an average molecular weight of 3,000 to 9,000 g / mol, further preferably having an average molecular weight of 4000 to 8000 g / mol and in particular having an average molecular weight of 4000 to 6000 g / mol. 8 The method according to any of the preceding points, wherein the detergent or cleaning-active preparation contains 10 to 30 wt.-% and in particular 12 to 20 wt.-% detergent or cleaning-active active ingredient, based on its total weight. 9. The method according to any of the preceding points, wherein the active washing- or cleaning-active ingredient is selected from the group of builders, the washing- or cleaning-active polymers, the corrosion inhibitors and mixtures thereof. 10. The method according to any of the preceding points, wherein the active washing- or cleaning-active ingredient is selected from the group of builders, preferably from the group of aminocarboxylic acids and their salts, particularly preferably from the group consisting of methylglycinediacetic acid (MGDA) and their salts, glutaminediacetic acid (GLDA) and their salts, ethylenediaminediacetic acid (EDDS) and their salts, iminodisuccinic acid (IDS) and their salts, and iminodiacetic acid (IDA) and their salts, and in particular from the group consisting of methylglycinediacetic acid (MGDA) and their salts. 11.The process according to any of the preceding items, wherein the active washing- or cleaning-active ingredient is selected from the group of polycarboxylates, in particular of the copolymeric polyacrylates, particularly preferably of the copolymeric polyacrylates containing sulfonic acid groups. 12.The method according to any of the preceding points, wherein the active ingredient with washing or cleaning activity is selected from the group of glass corrosion inhibitors, preferably water-soluble zinc salts, particularly preferably zinc sulfate and zinc acetate, in particular zinc acetate. 13.The process according to any of the preceding points, wherein the detergent or cleaning-active preparation comprises, based on its total weight, 2 to 10% by weight of stabilizer from the group of nonionic surfactants. 14. The process according to any of the preceding items, wherein the stabilizer is selected from the group of the nonionic surfactants having a melting point above 30° C., preferably in the range from 40 to 60° C. 15. the process according to any of the preceding items, wherein the detergent-active preparation comprises stabilizer, and the stabilizer is selected from the group of the nonionic surfactants of the formula (I) R 1 O[CH 2 CH(CH 3) O] x[ CH 2 CH 2 O] y[ CH 2 CH(CH 3) O] z R2in derR 1 is a linear or branched aliphatic hydrocarbon radical having 4 to 22 carbon atoms,R 2 denotes a preferably hydroxylated, linear or branched hydrocarbon radical having 2 to 26 carbon atoms,x and z are values from 0 to 40 andy is a value of at least 15.16. The method according to any of the preceding points, wherein the detergent or cleaning-active preparation comprises stabilizer, and the stabilizer is selected from the group of the nonionic surfactants of the formula (II) R 1 O[CH 2 CH 2 O] y H in whichR 1 is a linear or branched aliphatic hydrocarbon radical having 4 to 22 carbon atoms,y is a value from 12 to 100, preferably from 15 to 50 and in particular from 20 to 40.17. Method according to one of the preceding points, wherein the detergent or cleaning-active preparationwashing- or cleaning-active ingredient from the group of aminocarboxylic acid, preferably from methylglycinediacetic acid (MGDA) or salts thereof, andstabilizer from the group of the nonionic surfactants of the formula (II) R 1 O[CH 2 CH 2 O] y H (II) in which1 R is a linear or branched aliphatic hydrocarbon radical having 4 to 22 carbon atoms,◯ y is a value from 12 to 100, preferably from 15 to 50 and in particular from 20 to 40 comprising. 18. The process according to item 17, wherein the weight ratio of aminocarboxylic acid and stabilizer is 6:1 to 1:1, preferably 5:1 to 3:2 and in particular 4:1 to 2:1. 19.The process according to any of the preceding points, wherein the detergent or cleaning-active preparation comprises, based on its total weight, 5 to 15% by weight, preferably 5 to 12% by weight, of water. 20.The method according to any of the preceding items, wherein the detergent or cleaning-active preparation further comprises dye f). 21st The process according to any of the preceding points, wherein the aqueous sugar solution in step i) has a sugar content by weight of 60 to 95% by weight, preferably of 70 to 90% by weight. 22.The method according to any one of the preceding points, wherein the aqueous sugar solution in step i) has a temperature above 50°C, preferably above 70°C and in particular in the range of 85 to 98°C. 23.The method according to any one of the preceding points, wherein the aqueous sugar solution in step ii) has a temperature above 50°C, preferably above 70°C and in particular in the range of 85 to 98°C. 24. Method according to one of the preceding points, wherein method step ii) takes place before method step iii). 25.The method according to any of the preceding items, wherein method step ii) takes place simultaneously with method step iii). 26. Method according to one of the preceding points, wherein method step ii) takes place after method step iii). 27. The method according to any of the preceding items, wherein the aqueous sugar solution in step iii) has a temperature above 85°C, preferably above 90°C and in particular in the range from 95 to 110°C. 28.The process according to any of the preceding points, wherein the liquid polyalkylene glycol-containing mixture in step iii) is homogenized, preferably stirred, for a period of 5 to 60 minutes, preferably 10 to 40 minutes, before step iv). 29. Method according to one of the preceding points, wherein the liquid detergent- or cleaning-active preparation in step iv) has a temperature above 85° C., preferably above 90° C., and in particular in the range from 95 to 110° C. 30. method according to one of the preceding points, wherein the active washing- or cleaning-active ingredient is added in portions in step iv). 31st Method according to one of the preceding points, wherein the liquid detergent- or cleaning-active preparation in step iv) is homogenized, preferably stirred, for a period of 20 to 120 minutes, preferably of 30 to 90 minutes, before step v). 32. method according to one of the preceding points, wherein the liquid detergent- or cleaning-active preparation has a temperature above 85° C., preferably in the range from 85 to 95° C., during the portioning in step v). 33. Method according to one of the preceding points, wherein the liquid detergent or cleaning-active preparation in step v) is portioned onto a planar surface. 34. method according to one of the preceding points, wherein the liquid detergent- or cleaning-active preparation in step v) is portioned onto a cooling surface, preferably onto a revolving steel strip. 35. Method according to one of the preceding points, wherein the liquid detergent or cleaning-active preparation in step v) is portioned into a preformed receiving cavity. 36. method according to one of the preceding points, wherein the liquid detergent or cleaning-active preparation in step v) is portioned into a preformed receiving cavity, wherein the solid detergent or cleaning-active preparation formed after solidification of the portioned liquid detergent or cleaning-active preparation is subsequently removed from the receiving cavity and transferred into the cavity of a detergent tablet or the receiving chamber of a water-soluble container. 37th Method according to one of the preceding points, wherein the liquid detergent or detergent-active preparation in step v) is portioned onto the surface of a further detergent or detergent. 38.Method according to one of the preceding points, wherein the liquid detergent- or detergent-active preparation in step v) is portioned into the cavity of a detergent tablet. 39. method according to one of the preceding points, wherein the liquid detergent or cleaning-active preparation in step v) is portioned into the receiving chamber of a water-soluble container. 40th Method according to one of the preceding points, wherein the liquid detergent or cleaning-active preparation in step v) is portioned into a receiving chamber obtained by shaping a water-soluble film. 41. Method according to one of the preceding points, wherein the liquid detergent or cleaning-active preparation in step v) is portioned onto the surface of a detergent or cleaning agent located in the receiving chamber of a water-soluble container. 42. Method according to one of the preceding points, wherein the liquid detergent- or cleaning-active preparation in step vi) is cooled for solidification. 43. Method according to one of the preceding points, wherein solid detergent or cleaning-active preparation is enclosed in a further step vii) by means of a water-soluble film following step vi). 44th Method according to item 43, wherein the solid detergent or cleaning-active preparation enclosed by a water-soluble film is transported through a shrink tunnel by means of a transport device and the water-soluble film is shrunk in the shrink tunnel.References included in the specificationThis list of documents cited by the applicant has been produced in an automated manner and is only included for the better information of the reader. The list is not part of the German patent application or utility model application. The DPMA does not take any adhesion for any faults or omissions.Patent Literature citedDE 199 45 849 A1

[0005] DE 10 2015 213 939 A1

[0005] Cited Non-Patent LiteratureDIN 53240 1:2012-07

[0017]

Claims

A process for preparing a detergent or cleaning-active preparation comprising, based on its total weight a), 10 to 50% by weight of sugar; b) 20 to 70% by weight of polyalkylene glycol; c) 8 to 40% by weight of detergent or cleaning-active active ingredient; d) optionally 1 to 12% by weight of stabilizer from the group of the nonionic surfactants; e) 5 to 20% by weight of water; comprising the steps: i) providing an aqueous sugar solution having a weight fraction of sugar above 50% by weight; ii) optionally introducing a stabilizer into the aqueous sugar solution; iii) introducing polyalkylene glycol into the aqueous sugar solution; iv) introducing detergent or cleaning-active ingredient into the polyalkylene glycol-containing mixture to form a liquid detergent or cleaning-active preparation; v) portioning of the liquid washing- or cleaning-active preparation; vi) solidifying the portioned liquid washing- or cleaning-active preparation to form a solid washing- or cleaning-active preparation.The method according to claim 1, wherein the detergent or cleaning-active preparation comprises - detergent or cleaning-active ingredient from the group of aminocarboxylic acid, preferably from methylglycinediacetic acid (MGDA) or salts thereof and - stabilizer from the group of the nonionic surfactants of the formula (II) R 1 O[CH 2 CH 2 O] y H (II) in which ◯ R 1 is a linear or branched aliphatic hydrocarbon radical having 4 to 22 carbon atoms, ◯ y is a value of 12 to 100, preferably 15 to 50 and in particular 20 to 40.The method according to any one of the preceding claims, wherein process step ii) takes place before process step iii).The method according to any one of the preceding claims, wherein the aqueous sugar solution in step iii) has a temperature above 85°C, preferably above 90°C and in particular in the range of 95 to 110°C.Method according to one of the preceding claims, wherein the liquid detergent- or cleaning-active preparation has a temperature above 85°C, preferably in the range from 85 to 95°C, during the portioning in step v).Method according to one of the preceding claims, wherein the liquid detergent or cleaning-active preparation in step v) is portioned into the cavity of a detergent or cleaning agent tablet.The method according to any of the preceding claims, wherein the liquid detergent or cleaning-active preparation in step v) is portioned into a receiving chamber obtained by shaping a water-soluble film.Method according to one of the preceding claims, wherein the liquid detergent or cleaning-active preparation in step v) is portioned onto the surface of a detergent or cleaning agent located in the receiving chamber of a water-soluble container.The method according to any of the preceding claims, wherein, following step vi), solid detergent or cleaning-active preparation is enclosed in a further step vii) by means of a water-soluble film.The method according to claim 9, wherein the solid detergent or cleaning-active preparation enclosed by a water-soluble film is transported through a shrink tunnel by means of a transport device and the water-soluble film is shrunk in the shrink tunnel.