EP4508183A1 - Verfahren zur herstellung einer waschmittelportionseinheit - Google Patents
Verfahren zur herstellung einer waschmittelportionseinheitInfo
- Publication number
- EP4508183A1 EP4508183A1 EP23701631.6A EP23701631A EP4508183A1 EP 4508183 A1 EP4508183 A1 EP 4508183A1 EP 23701631 A EP23701631 A EP 23701631A EP 4508183 A1 EP4508183 A1 EP 4508183A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- flowable
- mold
- weight
- composition
- group
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
- C11D17/0008—Detergent materials or soaps characterised by their shape or physical properties aqueous liquid non soap compositions
- C11D17/003—Colloidal solutions, e.g. gels; Thixotropic solutions or pastes
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D11/00—Special methods for preparing compositions containing mixtures of detergents
- C11D11/0094—Process for making liquid detergent compositions, e.g. slurries, pastes or gels
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
- C11D17/0047—Detergents in the form of bars or tablets
- C11D17/0065—Solid detergents containing builders
- C11D17/0073—Tablets
- C11D17/0078—Multilayered tablets
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
- C11D17/0047—Detergents in the form of bars or tablets
- C11D17/0065—Solid detergents containing builders
- C11D17/0073—Tablets
- C11D17/0082—Coated tablets
Definitions
- the present invention relates to a method for producing a detergent portion unit comprising a gel body.
- detergents and cleaning products Continually changing requirements are placed on the packaging and supply of detergents and cleaning products. For some time now, the main focus has been on the convenient dosage of detergents and cleaning agents for consumers and on simplifying the work steps necessary to carry out a washing or cleaning process.
- a technical solution is provided by pre-portioned detergents or cleaning agents, for example water-soluble containers with one or more receiving chambers for powdered or liquid detergents or cleaning agents.
- Detergent tablets which can be single- or multi-phase, offer another technical solution.
- water-soluble polymers are usually formed into receiving chambers, which are subsequently filled with a detergent or cleaning agent and finally closed.
- the receiving chambers can be made, for example, from water-soluble polymer films by deep-drawing processes.
- a water-soluble polymer is formed into a receptacle by injection molding.
- the water-soluble packaging material used to package the filled detergent portion units is generally hygroscopic.
- the tendency and ability of packaging materials to absorb water can lead to portion units sticking to the surfaces of machines or packaging materials and not being able to be conveyed optimally, or portion units adjacent to one another, for example in a common outer packaging, glue together.
- the water-soluble packaging materials used are generally not washing or cleaning-active, so they do not contribute to the product's effectiveness. Reducing the proportion of packaging in the total weight of the detergent portion units would therefore not result in any loss of performance and would be welcome for reasons of sustainability and cost-effectiveness.
- the washing performance provided by the detergent portion unit is directly related to the dissolution properties of the portion unit. Especially in view of that With the increasing use of cold washing processes, it is preferred to keep the thickness of the water-soluble film material contained in the detergent portion unit as small as possible in order to accelerate the dissolution process. However, the reduction in the thickness of the surrounding film material simultaneously results in reduced mechanical stability of the portion units. Overcoming this apparent dichotomy of mechanical stability and dissolution rate using water-soluble film-packaged detergent dosage units remains a relevant consideration in the development of water-soluble detergent dosage units.
- Detergent tablets offer an alternative to the previously described sachets, but in which sufficient mechanical stability and high dissolution speed are incompatible in a similar way as in the case of sachets.
- the application was based on the task of providing efficient processes for the production of quickly soluble detergent portion units which have a high product and storage stability, can be assembled in a simple manner using minimal amounts of packaging materials and which are suitable for the consumer an appealing olfactory, visual and haptic appeal.
- the detergent portion units should have a high product performance and be easy and safe to handle for the consumer.
- a first subject of the application is a method for producing a detergent portion unit, comprising a) a dimensionally stable gel body, comprising the steps: i) providing a first flowable surfactant-containing composition; ii) providing a second flowable gelling agent-containing composition different from the first flowable composition; iii) feeding the first and second flowable compositions to a mold; iv) introducing the first and second flowable compositions into the mold; v) mixing the first and second flowable compositions in the mold using a dynamic mixing device to form a surfactant-containing and gelling agent-containing mixture; vi) Allowing the surfactant-containing and gelling agent-containing mixture to solidify in the mold to form a dimensionally stable gel body.
- detergent portion unit describes a form of offer in which a measured portion of a detergent or cleaning agent is present. Detergent portion units therefore refer to both forms of offer for textile laundry and forms of offer for cleaning hard surfaces such as ceramics, glass, metal or tiles.
- the detergent portion unit preferably has a weight of 14 g to 42 g, preferably 18 g to 38 g, in particular 20 g to 34 g.
- the detergent portion unit includes a gel body.
- the detergent portion unit can consist of the gel body.
- the gel body preferably has a weight of 14 g to 42 g, preferably 18 g to 38 g, in particular 20 g to 34 g.
- the weight of the gel body is preferably 10 g to 28 g, preferably from 12 g to 23 g and in particular from 15 g to 20 g
- Gel bodies are bodies that show elastic deformation behavior under the influence of force. Bodies are considered to be dimensionally stable if they have an inherent dimensional stability which enables them to assume a non-disintegrating spatial shape under normal conditions of production, storage, transport and handling by the consumer, whereby this spatial shape can also be maintained over longer periods of time under the conditions mentioned Time, preferably 4 weeks, particularly preferably 8 weeks and in particular 32 weeks, does not change, that is, under the usual conditions of production, storage, transport and handling by the consumer, it remains in the spatial-geometric shape determined by production , that is, not melted.
- Time preferably 4 weeks, particularly preferably 8 weeks and in particular 32 weeks
- the spatial shape of the gel body is fundamentally freely selectable; its side surfaces can, for example, be designed to be convex, concave or flat. At the same time, however, certain spatial configurations have proven to be particularly advantageous in terms of the producibility, storage and use of the gel bodies.
- the gel body has a flat underside, the largest diagonal of which is larger than the height of the gel body.
- These bodies can not only be produced in a simple manner, for example using a casting process, but they can also be packaged easily and in a space-saving manner and are suitable for dosing via the dosing or dispensing chambers of electronic cleaning devices. It is preferred if the gel body has a flat underside whose largest diagonal is more than 1.5 times, preferably more than 2 times, the height of the gel body. For manufacturability, for example in relation to the removal of the gel body from a mold, it has proven to be advantageous if the underside of the gel body has no corners.
- Preferred gel bodies are therefore characterized by oval undersides or alternatively by ellipsoidal or round, preferably round undersides.
- Corresponding gel bodies with a non-square bottom are also preferred by many consumers due to their appearance.
- gel bodies that have a bottom and a top that are connected to one another by a cylindrical lateral surface are preferred.
- gel bodies are cast, for example, in the form of plates, which are subsequently cut into gel bodies, angular undersides are advantageous since such gel bodies can be cut up without leaving any residual amounts and can be packaged in a space-saving manner.
- preferred gel bodies therefore have angular undersides, in particular triangular, square or hexagonal undersides.
- the gel body has a square underside with rounded corners.
- the gel bodies have a top side that is plane-parallel to the underside.
- the gel body has a bottom and a top that have the same geometric shape, the bottom and the top having the same area size.
- corresponding gel bodies can be produced in a simple manner, for example by casting plates and then cutting the plates into individual gel bodies.
- These gel bodies can also be spatially aligned more easily than gel bodies with less body symmetry in any subsequent process steps, during packaging or use by the user, due to the geometric identity of the bottom and top. This applies in particular to gel bodies, which at the same time have a top side that is plane-parallel to the underside.
- gel bodies examples include circular cylinders, elliptical cylinders, parallelepipeds, rhombohedrons, straight or oblique prisms, cuboids or cubes.
- the group of circular cylinders and elliptical cylinders includes the vertical circular cylinders and elliptical cylinders as well as the oblique circular cylinders and elliptical cylinders. Because they are easy to produce by separating them from a plate, gel bodies in the form of vertical circular cylinders, vertical elliptical cylinders, straight prisms, straight cuboids or cubes are preferred.
- the gel body has a bottom and a top that have the same geometric shape, with the bottom and the top having different surface sizes.
- Corresponding gel bodies can be preferred due to their attractive appearance or their optimized fit while being comparatively easy to produce. Examples of such gel bodies are circular cylinders or elliptical cylinders with a convex or concave bottom and a flat top. Other examples are truncated cones or truncated pyramids.
- preferred application subjects can be characterized as detergent portion units, comprising a gel body with a bottom and a top, the area of the top being 80 to 100%, preferably 90 to 100% and in particular 98 to 100% of the bottom.
- the process is particularly suitable for the manufacture of gel bodies with a high surfactant content.
- the first flowable surfactant-containing composition contains, based on its total weight, 30 to 70% by weight, preferably 40 to 60% by weight and in particular 45 to 55% by weight of surfactant.
- the gel bodies For the producibility and subsequent dissolving power of the gel bodies, it has proven to be advantageous if they contain 15 to 35% by weight, preferably 20 to 30% by weight, of an aqueous-organic solvent.
- the aqueous-organic solvent of the gel body is preferably introduced via the first and second flowable compositions. It is therefore preferred if the second flowable gelling agent-containing composition further contains an organic solvent.
- Particularly preferred flowable gelling agent-containing compositions contain gelling agent and organic solvent in a total weight proportion above 50% by weight, preferably above 70% by weight and in particular above 90% by weight.
- Preferred gel bodies also contain dye.
- Preferred gel bodies are transparent.
- Gel bodies are referred to as “transparent” if they have a transmission above 50%, preferably above 60% and in particular above 80% at at least one wavelength in the wavelength range from 410 to 800 nm, preferably at 600 nm.
- the transmission is determined using VIS spectrometry at a sample temperature of 20°C and a cuvette length of 10 mm.
- low-molecular gelling agents with a molar mass of up to 2000 g/mol in the gel body, whereby their weight proportion to the total weight of the gel body preferably less than 5% by weight, preferably 0.1 to 5% by weight and particularly preferably 0.1 to 2.5% by weight.
- the advantages of the method according to the invention come into play in particular when processing these low-molecular gelling agents with their specific gelling properties.
- the low molecular weight gelling agent has a solubility in water of less than 0.1 g/L (20° C.).
- the solubility of the organic gelator compound is determined at 20 ° C in double-distilled, demineralized water.
- gelling agents are preferably suitable which have a structure containing at least one hydrocarbon structural unit with 6 to 20 carbon atoms (preferably at least one carbocyclic, aromatic structural unit) and additionally an organic structural unit covalently bound to the aforementioned hydrocarbon unit, which has at least two groups, selected from -OH, -NH-, or mixtures thereof.
- gel bodies are characterized in that said gel bodies contain at least one benzylidene alditol compound of the formula (GB-I) as a gelling agent where for a covalent single bond between an oxygen atom of the alditol
- n is 0 or 1, preferably 1, m is 0 or 1, preferably 1,
- benzylidene alditols in the L configuration or in the D configuration or a mixture of both are suitable according to the invention. Due to their natural availability, the benzylidene alditol compounds in the D configuration are preferably used according to the invention.
- the alditol skeleton of the benzylidene alditol compound contained in the shaped body according to formula (GB-I) is D-glucitol, D-mannitol, D-arabinitol, D-ribitol, D-xylitol, L -Glucitol, L-mannitol, L-arabinitol, L-ribitol or L-xylitol.
- n according to the benzylidenalditol compound of the formula (GB-I) is preferably 1.
- m according to the benzylidenalditol compound formula (GB-I) is preferably 1.
- the gel body contains at least one compound of the formula (GB-11) as the benzylidene alditol compound of the formula (GB-I).
- R 1 , R 2 , R 3 , R 4 , R 5 and R 6 are as defined in formula (I).
- R 1 , R 2 , R 3 , R 4 , R 5 and R 6 independently represent a hydrogen atom, methyl, ethyl, chlorine, fluorine or methoxy, preferably a hydrogen atom.
- the benzylidene alditol compound of formula (GB-I) is selected from 1,3:2,4-di-G-benzylidene-D-sorbitol; 1,3:2,4-Di-0-(p-methylbenzylidene)-D-sorbitol; 1,3:2,4-Di-O-(p-chlorobenzylidene)-D-sorbitol; 1,3:2,4-Di-0-(2,4-dimethylbenzylidene)-D-sorbitol; 1,3:2,4-Di-O-(p-ethylbenzylidene)-D-sorbitol; 1,3:2,4-Di-0-(3,4-dimethylbenzylidene)-D-sorbitol or mixtures thereof.
- Preferred gel bodies contain at least one 2,5-diketopiperazine compound of the formula (GB-II) as a gelling agent.
- R 1 , R 2 , R 3 and R 4 independently represent a hydrogen atom, a hydroxy group, a (Ci-Ce) alkyl group, a (C2-Ce) alkenyl group, a (C2-C6) acyl group, a ( C2-C6) acyloxy group, a (Ci-Ce) alkoxy group, an amino group, a (C2-C6) acylamino group, a (Ci-C6) alkylaminocarbonyl group, an aryl group, an aroyl group, an aroyloxy group, an aryloxy group, a Aryl (Ci-C4) alkyloxy group, an aryl (Ci-C3) alkyl group, a heteroaryl group, a hetroaryl (Ci-C3) alkyl group, a (C1-C4) hydroxyalkyl group, a (Ci-C4) -Aminoalkyl group, a carboxy-(C
- R 5 represents a hydrogen atom, a linear (Ci to Ce) alkyl group, a branched (C3 to Cio) alkyl group, a (C3 to C6) cycloalkyl group, a (C2-Ce) alkenyl group, a (C2-C6 )-alkynyl group, a (Ci-C4)-hydroxyalkyl group, a (Ci-C4)-alkoxy-(Ci-C4)-alkyl group, a (C1-C4)-acyloxy-(Ci-C4)-alkyl group, an aryloxy- (Ci-C4)-alkyl group, a G-(aryl-(Ci-C4)-alkyl)oxy-(Ci-C4)-alkyl group, a (Ci-C4)-alkylsulfanyl-(Ci-C4)-alkyl group, a Aryl group, an aryl (Ci-C3) alkyl group,
- R 3 and R 4 according to formula (GB-II) represent a hydrogen atom.
- R 2 , R 3 and R 4 according to formula (GB-II) represent a hydrogen atom. Therefore, very particularly preferred moldings according to the invention contain at least one 2,5-diketopiperazine compound according to the formula (GB-Ila) wherein R 1 and R 5 are as defined under formula (GB-II) (vide supra).
- radical R 1 binds in the para position of the phenyl ring according to formula (GB-II) and according to formula (GB-Ila). Therefore, for the purposes of the present invention, those shaped bodies according to the invention which contain at least one 2,5-diketopiperazine compound according to the formula (GB-Ilb) are preferred, wherein R 1 and R 5 are as previously defined under formula (GB-II) (vide supra).
- the 2,5-diketopiperazine compounds of the formula (GB-II) have chiral centers at least on the carbon atoms in positions 3 and 6 of the 2,5-diketopiperazine ring.
- the numbering of ring positions 3 and 6 was illustrated as an example in the formula (GB-Ilb).
- the 2,5-diketopiperazine compound of the formula (GB-II) of the compositions according to the invention is preferably the configuration isomer 3S,6S, 3R,6S, 3S based on the stereochemistry of the carbon atoms at the 3- and 6-position of the 2,5-diketopiperazine ring ,6R, 3R,6R or mixtures thereof, particularly preferably 3S,6S.
- Preferred gel bodies contain at least one 2,5-diketopiperazine compound of the formula (GB-II) as a gelling agent, selected from 3-benzyl-6-carboxyethyl-2,5-diketopiperazine, 3-benzyl-6-carboxymethyl-2,5- diketopiperazine, 3-benzyl-6-(p-hydroxybenzyl)-2,5-diketopiperazine, 3-benzyl-6- iso-propyl-2,5-diketopiperazine, 3-benzyl-6-(4-aminobutyl)-2,5-diketopiperazine, 3,6-di(benzyl)-2,5-diketopiperazine, 3,6-di(p -hydroxybenzyl)-2,5-diketopiperazine, 3,6-di(p-(benzyloxy)benzyl)-2,5-diketopiperazine, 3-benzyl-6-(4-imidazolyl)methyl-2,5-dike
- the gel bodies according to the invention may contain at least one diarylamidocystine compound of the formula (GB-III) as gelling agent a). wherein
- X + independently represents a hydrogen atom or an equivalent of a cation
- R 1 , R 2 , R 3 and R 4 independently represent a hydrogen atom, a halogen atom, a C1-C4 alkyl group, a Ci-C4 alkoxy group, a C2-C4 hydroxyalkyl group, a hydroxyl group, an amino group, an N- (Ci-C4-alkyl)amino group, an N,N-di(Ci-C4-alkyl)amino group, an N-(C2-C4-hydroxyalkyl)amino group, an N,N-di(C2-C4-hydroxyalkyl)amino group or R 1 with R 2 or R 3 with R 4 forms a 5- or 6-membered fused ring, which in turn has at least one group from Ci-C4 alkyl group, Ci-C4 alkoxy group, C2-C4 hydroxyalkyl group, hydroxyl group , Amino group, N-(Ci-C4-alkyl)amino group, N,
- Each of the stereocenters contained in the compound of formula (GB-III) can independently represent the L or D stereoisomer. According to the invention, it is preferred if said cystine compound of the formula (GB-III) is derived from the L-stereoisomer of cysteine.
- Said gel bodies can contain at least one compound of the formula (GB-III) in which R 1 , R 2 , R 3 and R 4 independently represent a hydrogen atom, a halogen atom, a C1-C4 alkyl group, a Ci-C4 alkoxy group , a C2-C4-hydroxyalkyl group, a hydroxyl group, or R 1 with R 2 or R 3 with R 4 forms a 5- or 6-membered fused ring, which in turn is in each case with at least one group of Ci-C4-alkyl group, Ci- C4 alkoxy group, C2-C4 hydroxyalkyl group, hydroxyl group can be substituted.
- R 1 , R 2 , R 3 and R 4 independently represent a hydrogen atom, a halogen atom, a C1-C4 alkyl group, a Ci-C4 alkoxy group , a C2-C4-hydroxyalkyl group, a hydroxyl group, or R 1 with R 2 or R
- N-(C8-C24)-hydrocarbylglyconamide compounds suitable as gel formers a) preferably have the formula (GB-IV). where n is 2 to 4, preferably 3 or 4, especially 4;
- R 1 is selected from hydrogen, C1-C16 alkyl radicals, C1-C3 hydroxy or methoxyalkyl radicals, preferably C1-C3 alkyl, hydroxyalkyl or methoxyalkyl radicals, particularly preferably methyl;
- R 2 is selected from Cs-C24 alkyl radicals, Cs-C24 monoalkenyl radicals, C8-C24 dialkenyl radicals, C8-C24 trialkenyl radicals, C8-C24 hydroxyalkyl radicals, C8-C24 hydroxyalkenyl radicals, C1-C3 hydroxyalkyl radicals or methoxy-Ci- Cs alkyl radicals, preferably Cs-Os alkyl radicals and mixtures thereof, more preferably Cs, C10, C12, C14, s and Os alkyl radicals and mixtures thereof, most preferably C12 and C14 alkyl radicals or a mixture thereof.
- the radical HO-CH2-(CHOH) n -C- is one of one
- glucuronic acid should be mentioned as a preferred residue.
- R 1 is preferably H or a short-chain alkyl radical, especially methyl.
- R 2 is preferably a long-chain alkyl radical, for example a Cs-s alkyl radical.
- the at least one low molecular weight gelling agent of the second flowable gelling agent-containing composition is selected from the group consisting of the group of cyclic dipeptides, cyclic dipeptide derivatives and dibenzylidene sorbitols. Due to its technical effect, the at least one gelling agent of the second flowable gelling agent-containing composition is particularly preferred, dibenzylidene sorbitol (DBS).
- DBS dibenzylidene sorbitol
- step iii) of the process the first and second flowable compositions are fed to the mold. In one embodiment of the method, the first flowable composition and the second flowable composition are delivered to the mold in the same line. This procedure is characterized by a reduced equipment structure.
- the materials known to those skilled in the art for producing casting molds are suitable for producing the mold, for example materials from the group of metals, polymers or rubbers.
- materials from the group of silicones have proven to be particularly suitable.
- the first and second flowable compositions are introduced into the mold.
- the first flowable composition and the second flowable composition are introduced into the mold using a common injector.
- this procedure is characterized by a reduced equipment structure.
- the first and second flowable compositions can be partially mixed in the common injector.
- the disadvantages of this process are, albeit to a lesser extent, as in the case of the common feed line, a reduced control of the gelling process and, in the event of a production interruption, an increased cleaning effort before the production apparatus is put back into operation.
- first flowable composition and the second flowable composition are preferred.
- An injector refers to a device which is suitable for introducing a flowable composition into a mold.
- the injector is, for example, a filler neck or a nozzle.
- the first flowable composition and the second flowable composition are introduced into the mold at the same time in step iv). This procedure improves the desired mixing of the two compositions due to turbulent flow.
- the procedure according to the invention is particularly suitable for processes in the course of which flowable compositions are mixed in weight proportions that differ greatly from one another.
- the first flowable composition and the second flowable composition are mixed in the mold preferably in a weight ratio of 50:1 to 5:1, preferably of 35:1 to 8:1.
- the first flowable composition and the second flowable composition are preferably introduced into the mold at a filling rate of 1 ml/s to 25 ml/s.
- the dynamic mixing device is lowered into the mold before introducing the first flowable composition and the second flowable composition. It is particularly preferred to introduce the first flowable composition and the second flowable composition into the effective range of the mixing element of the dynamic mixing device.
- Impeller mixers for example, can be used as mixers.
- Preferred mixing devices have a gear as the mixing element.
- the use of a dynamic mixing device, which comprises two interlocking gear wheels as a mixing element, is particularly preferred.
- a corresponding arrangement of the mixing elements not only enables the two flowable compositions to be mixed homogeneously but also ensures uninterrupted cleaning of the two gears used as the mixing element.
- the mixing element preferably fills only 1 to 10% by volume, preferably 2 to 8% by volume, of the internal volume of the mold. It is preferably placed at the center of volume of the shape. It is also preferred to position the mixing element close to the bottom in the mold, since in this way the effect of the mixing element on the two compositions begins early on.
- the mixing element and the mold can be moved relative to one another in step v).
- a relative movement can be achieved by moving the mixing element, moving the mold or moving the mixing element and mold.
- the movement can be in the form in horizontal or vertical or horizontal and vertical directions. In a horizontal movement, the direction of movement of the mixing element is parallel to the opening surface of the mold; in a vertical movement, the direction of movement is orthogonal to this surface.
- the mold can be moved in step v).
- a corresponding relative movement can result, for example, from the transport of the mold on a conveyor belt or from a shaking movement of the mold.
- the movement of the shape can also be in horizontal or vertical or horizontal and vertical directions. In a horizontal movement, the direction of movement of the mold is parallel to its opening surface; in a vertical movement, the direction of movement is orthogonal to this surface.
- the mixing of the first flowable composition and the second flowable composition in step v) preferably takes place over a period of 1 to 20 seconds, preferably 2 to 10 seconds.
- step vi) of the process the surfactant-containing and gelling agent-containing mixture solidifies in the mold to form a dimensionally stable gel body.
- the surfactant-containing and gelling agent-containing mixture can be cooled in step vi). Cooling is preferably carried out under defined climatic conditions in which, in addition to the temperature, the humidity in the process room is also controlled and regulated.
- the dimensionally stable gel body can be removed from the mold.
- a suitable procedure for producing detergent portion units which include other components in addition to the gel body is in which the gel body is connected to a prefabricated molded body.
- the mold into which the first and second flowable preparations are introduced in step iv) is partially filled with a prefabricated molded body.
- the prefabricated molded body covers the bottom surface of the mold into which the first and second flowable preparations are introduced in step iv), preferably at least partially, particularly preferably completely.
- the surfactant-containing and gelling agent-containing mixture is added before, during or after solidification in step vi) in the mold covered with a prefabricated molded body. It is preferred here that the surface of the surfactant-containing and gelling agent-containing mixture that is visible in the mold is completely covered with a prefabricated molded body.
- the surfactant-containing and gelling agent-containing mixture is introduced into the mold onto a first prefabricated molded body and the side opposite the side covered with the first prefabricated molded body is covered with a second prefabricated molded body, a sandwich-like detergent portion unit which is particularly advantageous in terms of handling and appearance is obtained.
- a particularly preferred process variant for producing a detergent portion unit comprising a) a dimensionally stable gel body b) two shaped bodies, comprises the steps: i) providing a first flowable surfactant-containing composition; ii) providing a second flowable gelling agent-containing composition different from the first flowable composition; iii) feeding the first and second flowable compositions to a mold; iv) introducing the first and second flowable compositions into the mold, the bottom surface of which is at least partially covered with a first prefabricated molding; v) mixing the first and second flowable compositions in the mold using a dynamic mixing device to form a surfactant-containing and gelling agent-containing mixture; vi) covering the side of the dimensionally stable gel body opposite the side covered with the first prefabricated shaped body with a second prefabricated shaped body; vii) allowing the surfactant-containing and gelling agent-containing mixture to solidify in the mold to form a dimensionally stable gel body; viii) molding the gel body to form a detergent portion
- Preferred moldings fill 5 to 45% by volume, preferably 10 to 25% by volume, of the mold.
- the shaped body can be manufactured in different ways.
- the use of cast bodies has proven to be technically simpler to implement.
- the production of the shaped body by casting processes has the advantage that a wide variety of geometries can be produced.
- the casting bodies are particularly preferably solidified melts. Because they are easy to produce on an industrial scale, pressed bodies, in particular tablets, are particularly preferred as shaped bodies.
- the molded body preferably has a breaking strength of 50 N to 300 N, in particular 50 N to 150 N.
- This breaking strength ensures, on the one hand, sufficient stability of the shaped body during production, transport and handling by the consumer and, on the other hand, ensures satisfactory dissolution behavior of the shaped body in an aqueous liquor.
- the hardness of the molded body is measured by deformation until fracture, whereby the force acts on the side surfaces of the molded body and the maximum force that it can withstand is determined.
- a tablet testing device from Sotax, for example, is suitable for determining the hardness of the shaped body.
- Preferred moldings have printing.
- the gel body is combined with a molded body as described above, the dimensionally stable gel body, which is partially covered by a molded body, is finally formed from the mold.
- the gel body and the shaped body are preferably adhesively connected to one another.
- the shaped body also contributes to the washing and cleaning effect.
- Corresponding detergent portion units comprise a shaped body which, based on its total weight, contains more than 40% by weight, preferably more than 60% by weight, particularly preferably more than 80% by weight of washing or cleaning-active ingredient.
- Fragrances form a first group of washing or cleaning active ingredients integrated into the molded body. Their incorporation into the molded body ensures a fragrance experience that is perceptible to the consumer, which cannot be guaranteed in the same way when the fragrances are incorporated into the gel body.
- a further group of detergent or cleaning-active ingredients preferably incorporated into the shell substance are the builders, in particular the citrates, zeolites, silicates and carbonates, particularly preferably in particular the citrates and zeolites.
- the proportion by weight of these active substances in the total weight of the shell substance is preferably 5 to 60% by weight, in particular 10 to 50% by weight.
- Coating substances which, based on their total weight, contain 5 to 60% by weight, in particular 10 to 50% by weight, of citrate and/or zeolite are particularly preferred.
- active ingredients from the group of polymeric washing or cleaning active ingredients, preferably from the group of celluloses and cellulose derivatives and the anionic or nonionic aromatic polyesters, preferably from the group of celluloses, microcrystalline celluloses and carboxymethylcelluloses and the anionic or nonionic aromatic polyesters are advantageous.
- the proportion by weight of these cellulose-based active substances in the total weight of the coating substance is preferably 2 to 50% by weight.
- composition of some preferred detergent portion units can be found in the following tables (data in % by weight based on the total weight of the gel body or the coating substance unless otherwise stated).
- this application provides, among other things, the following items:
- a method for producing a detergent portion unit comprising a) a dimensionally stable gel body, comprising the steps: i) providing a first flowable surfactant-containing composition; ii) providing a second flowable gelling agent-containing composition different from the first flowable composition; iii) feeding the first and second flowable compositions to a mold; iv) introducing the first and second flowable compositions into the mold; v) mixing the first and second flowable compositions in the mold using a dynamic mixing device to form a surfactant-containing and gelling agent-containing mixture; vi) Allowing the surfactant-containing and gelling agent-containing mixture to solidify in the mold to form a dimensionally stable gel body.
- step v) Method according to one of the previous points, wherein in step v) the mixing element and the mold are moved relative to one another.
- step v) the mixing element is moved in the mold.
- step v) the mixing element is moved in the mold in the horizontal and/or vertical direction.
- step v) Method according to one of the previous points, wherein in step v) the mold is moved. 33. Method according to one of the previous points, wherein in step v) the mold is moved in a horizontal and/or vertical direction.
- the first flowable surfactant-containing composition contains, based on its total weight, 30 to 70% by weight, preferably 40 to 60% by weight and in particular 45 to 55% by weight of surfactant.
- the dimensionally stable gel body contains, based on its total weight, 15 to 35% by weight, preferably 20 to 30% by weight, of an aqueous-organic solvent.
- the second flowable gelling agent-containing composition contains low molecular weight gelling agent with a molar mass of up to 2000 g/mol, the weight proportion of which in the total weight of the gel body preferably being less than 5% by weight, preferably 0.1 to 5% by weight .-%, particularly preferably 0.1 to 2.5% by weight.
- the second flowable gelling agent-containing composition contains low molecular weight gelling agent selected from the group of cyclic dipeptides, cyclic dipeptide derivatives and dibenzylidene sorbitols.
- the shaped body contains a polymeric washing or cleaning-active ingredient, preferably a polymeric washing or cleaning-active ingredient from the group of celluloses and cellulose derivatives and that of the anionic or nonionic aromatic polyesters, preferably from the group which contains celluloses, microcrystalline celluloses and carboxymethyl celluloses and anionic or nonionic aromatic polyesters.
- a polymeric washing or cleaning-active ingredient preferably a polymeric washing or cleaning-active ingredient from the group of celluloses and cellulose derivatives and that of the anionic or nonionic aromatic polyesters, preferably from the group which contains celluloses, microcrystalline celluloses and carboxymethyl celluloses and anionic or nonionic aromatic polyesters.
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Detergent Compositions (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102022203705.7A DE102022203705A1 (de) | 2022-04-13 | 2022-04-13 | Verfahren zur Herstellung einer Waschmittelportionseinheit |
| PCT/EP2023/051060 WO2023198325A1 (de) | 2022-04-13 | 2023-01-18 | Verfahren zur herstellung einer waschmittelportionseinheit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4508183A1 true EP4508183A1 (de) | 2025-02-19 |
Family
ID=85036992
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP23701631.6A Pending EP4508183A1 (de) | 2022-04-13 | 2023-01-18 | Verfahren zur herstellung einer waschmittelportionseinheit |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20250223525A1 (de) |
| EP (1) | EP4508183A1 (de) |
| DE (1) | DE102022203705A1 (de) |
| WO (1) | WO2023198325A1 (de) |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001522933A (ja) | 1997-11-10 | 2001-11-20 | ザ、プロクター、エンド、ギャンブル、カンパニー | 洗剤タブレット |
| EP1032644B1 (de) * | 1997-11-10 | 2003-03-19 | The Procter & Gamble Company | Verfahren zur herstellung einer waschmitteltablette |
| PL1553162T5 (pl) | 2004-01-08 | 2011-07-29 | Unilever Nv | Toaletowe kostki |
| GB2415200A (en) | 2004-06-19 | 2005-12-21 | Reckitt Benckiser Nv | Process for producing a detergent tablet |
| US8980817B2 (en) | 2007-01-18 | 2015-03-17 | Reckitt Benckiser N.V. | Dosage element and a method of manufacturing a dosage element |
| DE102016102949A1 (de) | 2016-02-19 | 2017-08-24 | Buck-Chemie Gmbh | Reinigungs- und Beduftungsmittel für den Sanitärbereich und Herstellungsverfahren |
| DE102017210143A1 (de) * | 2017-06-16 | 2018-12-20 | Henkel Ag & Co. Kgaa | Viskoelastische, festförmige Tensidzusammensetzung |
| DE102018217340A1 (de) | 2018-10-10 | 2020-04-16 | Henkel Ag & Co. Kgaa | Gelförmige Formkörper zur Beduftung von Textilien im Waschprozess |
| DE102019210893A1 (de) * | 2019-07-23 | 2021-01-28 | Henkel Ag & Co. Kgaa | Mehrphasige Formkörper und Verfahren zu deren Herstellung |
-
2022
- 2022-04-13 DE DE102022203705.7A patent/DE102022203705A1/de active Pending
-
2023
- 2023-01-18 EP EP23701631.6A patent/EP4508183A1/de active Pending
- 2023-01-18 US US18/853,828 patent/US20250223525A1/en active Pending
- 2023-01-18 WO PCT/EP2023/051060 patent/WO2023198325A1/de not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| WO2023198325A1 (de) | 2023-10-19 |
| US20250223525A1 (en) | 2025-07-10 |
| DE102022203705A1 (de) | 2023-10-19 |
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