WO2024251446A1 - Procédé de production d'un détergent liquide - Google Patents

Procédé de production d'un détergent liquide Download PDF

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Publication number
WO2024251446A1
WO2024251446A1 PCT/EP2024/062492 EP2024062492W WO2024251446A1 WO 2024251446 A1 WO2024251446 A1 WO 2024251446A1 EP 2024062492 W EP2024062492 W EP 2024062492W WO 2024251446 A1 WO2024251446 A1 WO 2024251446A1
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WIPO (PCT)
Prior art keywords
salt
divalent cation
process according
surfactant
product stage
Prior art date
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PCT/EP2024/062492
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German (de)
English (en)
Inventor
Nuria Sanchez Bastardo
Matthias Sunder
Volker Blank
Frank Meier
Josef Markiefka
Peter Schmiedel
Niklas Matzeit
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Henkel AG and Co KGaA
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Henkel AG and Co KGaA
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Publication of WO2024251446A1 publication Critical patent/WO2024251446A1/fr
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Classifications

    • 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
    • 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
    • C11D10/00—Compositions of detergents, not provided for by one single preceding group
    • C11D10/04—Compositions of detergents, not provided for by one single preceding group based on mixtures of surface-active non-soap compounds and soap
    • 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
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/02—Inorganic compounds ; Elemental compounds
    • C11D3/04—Water-soluble compounds
    • C11D3/046—Salts
    • 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
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16—Organic compounds
    • C11D3/20—Organic compounds containing oxygen
    • C11D3/2075—Carboxylic acids-salts thereof
    • C11D3/2079—Monocarboxylic acids-salts thereof
    • 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
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/43—Solvents

Definitions

  • the present invention relates to a process for producing a liquid surfactant-containing detergent.
  • the invention relates to a sequential process for producing a liquid surfactant-containing detergent with improved optical and rheological properties.
  • Liquid detergents are usually manufactured using a sequential process in which the ingredients of the detergent are mixed together in chronological order.
  • the respective intermediate products and the end product are mixed with energy input.
  • the intermediate and end products are not only characterized by the most homogeneous distribution of active ingredients possible, but also by rheological properties suitable for further processing.
  • the type and timing of the adjustment of these rheological properties during the manufacturing process influences the efficiency of the process. For example, the transport of liquid detergents through pipes or tanks by pumps is trouble-free if the rheological properties of the detergent remain constant over the production period.
  • the application is based on the object of providing an efficient process for producing visually appealing, concentrated liquid detergents.
  • the resulting detergents should be characterized by high chemical and physical stability, in particular by high temporal stability of their optical and rheological properties.
  • a first subject matter of the present invention is a process for producing a liquid, surfactant-containing detergent, containing i) 20 to 80% by weight of surfactant; ii) 2 to 15% by weight of fatty acid; iii) 0.3 to 8% by weight of salt of a divalent cation; iv) 8 to 35% by weight of solvent; comprising the steps: a) providing a first liquid composition containing surfactant, fatty acid and solvent and introducing the first liquid composition into a main line; b) introducing the salt of a divalent cation into the liquid composition to form a salt-containing composition; c) mixing the salt-containing composition by means of a first dynamic mixer to form a first product stage; d) intermediate storage of the first product stage in an intermediate storage container; e) mixing the intermediately stored first product stage in a second dynamic mixer to form a second product stage.
  • the starting point of the process according to the invention is the provision of a first liquid composition containing surfactant, fatty acid and solvent in step a).
  • the preparation of this preparation can be carried out in advance in a continuous or discontinuous manner.
  • a line system preferably provided with mixing devices, in which the components of the preparation are brought into contact with one another and mixed is suitable for continuous production. Due to the reduced equipment and operational expenditure, however, it is preferred if the provision of the first liquid composition is carried out discontinuously.
  • the provision of the preparation as a storable mixture (master batch) in a stirred tank or another container is suitable for this.
  • Such containers not only enable the storage of intermediate products but also allow any fluctuations in the throughput rates of the subsequent, preferably continuously carried out process steps b) to e) to be buffered. It is therefore also preferred if the first liquid composition is continuously introduced from a buffer container into a main line.
  • step b) of the process a salt of a divalent cation is introduced into the first liquid composition.
  • Inorganic salts as well as organic salts are suitable as salts of a divalent cation.
  • the salt of a divalent cation in step b) is selected from the group of inorganic salts.
  • the use of salts of divalent cations in the form of their aqueous solutions is particularly preferred, wherein the salt is selected from the group of inorganic salts of divalent metallic cations, in particular magnesium and calcium salts, preferably from the group of magnesium chloride, magnesium sulfate, calcium chloride and calcium sulfate, in particular from the group of magnesium chloride and calcium chloride, very particularly preferably calcium chloride.
  • the inorganic salt of a divalent cation in step b) is introduced into the liquid composition in the form of an aqueous solution, preferably an alkaline aqueous solution.
  • the solution of the inorganic salt of a divalent cation preferably has a salt concentration of 200 to 800 g/l, preferably 250 to 600 g/l.
  • a corresponding salt content reduces the amount of water introduced into the liquid composition on the one hand and enables sufficiently precise dosing with sufficiently large volumes of the salt solution on the other.
  • the salt of a divalent cation in step b) is selected from the group of organic salts.
  • the organic salt of a divalent cation in step b) is preferably introduced into the liquid composition in the form of a dispersion, particularly preferably in the form of an alkaline aqueous dispersion.
  • the organic salt of a divalent cation is preferably introduced into the liquid composition in step b) in the form of a dispersion, wherein the salt is preferably selected from the group of organic salts of divalent metallic cations, in particular magnesium and calcium salts, preferably from the group of fatty acid salts of magnesium and calcium, in particular fatty acid salts of calcium.
  • the calcium salts of caprylic acid, capric acid, lauric acid, myristic acid, palmitic acid, stearic acid, oleic acid, linoleic acid and their mixtures, in particular calcium salts from the group of calcium stearates, have proven to be particularly advantageous in terms of the formation of a cloudy white appearance.
  • the dispersion of the organic salt of a divalent cation also has a salt concentration of 200 to 800 g/l, preferably 250 to 600 g/l.
  • the salt of a divalent cation in step b) comprises inorganic salt and organic salt, preferably calcium chloride and calcium stearate.
  • the addition of the salt of a divalent cation results in the formation of a cloudy white appearance and a sufficiently high and stable viscosity that is advantageous for the further process and later use.
  • the formation of both physical properties of the liquid composition is promoted by mixing all the ingredients. It is therefore also preferred that the outlet opening of the secondary line, through which the salt of a divalent cation is continuously introduced into the main line in step b) via a secondary line, lies in the effective range of the first dynamic mixer.
  • step b) of the process both inorganic and organic salt of a divalent cation are introduced into the liquid composition, it is preferred to continuously introduce the inorganic salt of a divalent cation and the organic salt of a divalent cation into the main line via separate secondary lines, wherein the outlet openings of the secondary lines are preferably located in the effective range of the first dynamic mixer.
  • the salt of a divalent cation comprises both inorganic salt of a divalent cation and organic salt of a divalent cation and the inorganic salt of a divalent cation and the organic salt of a divalent cation are introduced into the main line simultaneously in step b) via separate secondary lines, wherein the outlet opening of the secondary lines is particularly preferably located in the effective range of the first dynamic mixer.
  • both inorganic salt of a divalent cation and organic salt of a divalent cation are used as the salt of a divalent cation and the inorganic salt of a divalent cation and the organic
  • salts of a divalent cation are continuously introduced into the main line as a mixture via a secondary line, wherein the outlet opening of the secondary line is preferably located in the effective range of the first dynamic mixer.
  • the molar ratio of the salt introduced in step b) in the form of an inorganic salt of a divalent cation to the salt introduced in step b) in the form of an organic salt of a divalent cation is 1:10 to 10:1, preferably 1:6 to 6:1 and in particular 1:3 to 3:1.
  • Step c) is preferably carried out for a period of 0.5 to 20 seconds, preferably 2 to 12 seconds.
  • the mixing process is also preferably carried out continuously.
  • the mixing of the salt-containing composition in step c) is carried out with an energy input of 600 to 2000 kW/m 3 , preferably 900 to 1400 kW/m 3 .
  • the mixing of the salt-containing composition in step c) is carried out with a shear rate of 2000 to 12000 s -1 , preferably 6000 to 9000 s -1 .
  • the first product stage obtained in step c) is temporarily stored in step d).
  • This temporary storage preferably takes place for a period of 0.1 to 50 hours, preferably from 3 to 25 hours.
  • this is preferably at a temperature of 15 to 30 °C, preferably from 18 to 25 °C, in step d).
  • the intermediately stored first product stage is mixed in step e) in a second dynamic mixer to form the second product stage.
  • the mixing in step e) is preferably carried out continuously.
  • a preferred period for mixing the intermediate first product stage in step e) is 0.5 to 20 seconds, particularly preferably 2 to 12 seconds.
  • the mixing of the intermediately stored first product stage in step e) is preferably carried out with an energy input of 600 to 2000 kW/m 3 , particularly preferably from 900 to 1400 kW/m 3 .
  • the shear rate during the mixing process e) is preferably 2000 to 12000 s -1 , particularly preferably 6000 to 9000 s -1 .
  • the second product stage obtained in process step e) is characterized by a high physical stability, in particular by a high temporal stability of its viscosity.
  • the second product stage obtained in process step e) is not subjected to further differentiation. In other words, no further ingredient is added to the second product stage following process step e).
  • the composition of the second product stage is therefore identical to the composition of the liquid detergent containing surfactants.
  • the second product stage obtained in process step e) is preferably packaged and prepared without further differentiation. Due to the high temporal stability of its viscosity, the second product stage can also be stored for a longer period of time before it is packaged. In a preferred embodiment of the process, the second product stage is stored in a further step f) following step e).
  • the period of storage in step f) can be, for example, more than 0.5 hours, in particular more than 6 hours, but also more than 24 hours.
  • the second product stage is stored following step e) in a further step f) for a period of less than 120 hours, preferably less than 24 hours and in particular less than 2 hours.
  • the second product stage When stored in the further step f), the second product stage preferably has a temperature of 18 to 29°C and in particular of 20 to 24°C. Maintaining this temperature range increases the temporal stability of the viscosity of the second product stage brought about by the use of the second dynamic mixer.
  • a first essential component of the liquid, surfactant-containing detergent and the first liquid composition is the surfactant, which is contained in the liquid, surfactant-containing detergent at 20 to 80 wt.%, preferably at 30 to 75 wt.% and in particular at 40 to 70 wt.%.
  • the group of surfactants includes nonionic, anionic, cationic and amphoteric surfactants.
  • the compositions according to the invention can comprise one or more of the surfactants mentioned. Particularly preferred compositions contain at least one anionic surfactant as surfactant.
  • the anionic surfactant is preferably selected from the group comprising C9-C13 alkylbenzenesulfonates, olefinsulfonates, C12-C18 alkanesulfonates, estersulfonates, alk(en)yl sulfates, fatty alcohol ether sulfates and mixtures thereof.
  • Compositions which comprise C8-C13 alkylbenzenesulfonates and fatty alcohol ether sulfates as anionic surfactant have particularly good dispersing properties.
  • Suitable surfactants of the sulfonate type are preferably C8-C18 alkylbenzenesulfonates, olefinsulfonates, i.e.
  • alkene and hydroxyalkanesulfonates and disulfonates such as those obtained, for example, from C12-C18 monoolefins with a terminal or internal double bond by sulfonation with gaseous sulfur trioxide and subsequent alkaline or acidic hydrolysis of the sulfonation products.
  • Preferred alk(en)yl sulfates are the alkali metal salts and, in particular, the sodium salts of the sulfuric acid half-esters of the C12-C18 fatty alcohols, for example from coconut fatty alcohol, tallow fatty alcohol, lauryl, myristyl, cetyl or stearyl alcohol or the C18-C20 oxo alcohols and those half-esters of secondary alcohols of these chain lengths.
  • the C12-C16 alkyl sulfates and C12-C15 alkyl sulfates as well as the C14-C15 alkyl sulfates are preferred.
  • 2,3-Alkyl sulfates are also suitable anionic surfactants.
  • Preferred alk(en)yl sulfates are the salts of the sulfuric acid half esters of fatty alcohols with 12 to 18 C atoms, for example from coconut fatty alcohol, tallow fatty alcohol, lauryl, myristyl, cetyl or stearyl alcohol or the oxo alcohols with 10 to 20 C atoms and those half esters of secondary alcohols with these chain lengths.
  • the alkyl sulfates with 12 to 16 C atoms and alkyl sulfates with 12 to 15 C atoms as well as alkyl sulfates with 14 and 15 C atoms are preferred.
  • 2,3-alkyl sulfates are also suitable anionic surfactants.
  • Fatty alcohol ether sulfates such as the sulfuric acid monoesters of straight-chain or branched C7-C2i alcohols ethoxylated with 1 to 6 moles of ethylene oxide, such as 2-methyl-branched C9-11 alcohols with an average of 3.5 moles of ethylene oxide (EO) or C12-18 fatty alcohols with 1 to 4 EO, are also suitable.
  • Alkyl ether sulfates with the formula (A-1) are preferred.
  • R 1 is a linear or branched, substituted or unsubstituted alkyl radical, preferably a linear, unsubstituted alkyl radical, particularly preferably a fatty alcohol radical.
  • Preferred radicals R 1 of the formula (A-1) are selected from Decyl, undecyl, dodecyl, tridecyl, tetradecyl, pentadecyl, hexadecyl, heptadecyl, octadecyl, nonadecyl, eicosyl radicals and mixtures thereof, with the representatives with an even number of C atoms being preferred.
  • radicals R 1 of the formula (A-1) are derived from fatty alcohols having 12 to 18 C atoms, for example from coconut fatty alcohol, tallow fatty alcohol, lauryl, myristyl, cetyl or stearyl alcohol or from oxo alcohols having 10 to 20 C atoms.
  • AO in formula (A-1) is an ethylene oxide (EO) or propylene oxide (PO) group, preferably an ethylene oxide group.
  • the index n in formula (A-1) is an integer from 1 to 50, preferably from 1 to 20 and in particular from 2 to 10. Most preferably, n is 2, 3, 4, 5, 6, 7 or 8.
  • X is a monovalent cation or the nth part of an n-valent cation, preference being given to the alkali metal ions and among these Na + or K + , with Na + being extremely preferred. Further cations X+ can be selected from NHT, % Zn 2+ , % Mg 2+ , % Ca 2+ , % Mn 2+ , and mixtures thereof.
  • compositions contain an alkyl ether sulfate selected from fatty alcohol ether sulfates of the formula A-2
  • alkoxylates/ethoxylates have a narrow homolog distribution (narrow range ethoxylates, NRE).
  • the composition contains C9-13 alkylbenzenesulfonates and optionally additionally fatty alcohol ether sulfates as anionic surfactant.
  • composition contains at least one anionic surfactant of the formula (A-3), (A-3), in the
  • R' and R" are independently H or alkyl and together contain 9 to 19, preferably 9 to 15 and in particular 9 to 13 C atoms, and Y + is a monovalent cation or the n-th part of an n-valent cation (in particular Na + ).
  • liquid surfactant-containing detergents preferably produced by means of the process according to the invention contain as surfactant at least one anionic surfactant, preferably at least one anionic surfactant from the group consisting of Cs-is-alkylbenzenesulfonates, Cs-18-olefinsulfonates, Cs-alkanesulfonates, Cs-is-estersulfonates, Cs-is-alkyl sulfates, Cs-18-alkenyl sulfates, fatty alcohol ether sulfates, in particular at least one anionic surfactant from the group of Cs-is-alkylbenzenesulfonates.
  • anionic surfactant preferably at least one anionic surfactant from the group consisting of Cs-is-alkylbenzenesulfonates, Cs-18-olefinsulfonates, Cs-alkanesulfonates, Cs-is-estersulfonates, Cs-is-
  • the weight proportion of the anionic surfactant in the total weight of the liquid surfactant-containing detergents is preferably 20 to 60 wt.% and in particular 22 to 50 wt.%.
  • the liquid detergent containing surfactants and the first liquid composition contain fatty acid.
  • the liquid detergent containing surfactants contains 4 to 12% by weight, preferably 6 to 10% by weight, of fatty acid based on its total weight.
  • This weight proportion refers to the weight proportion of the liquid detergent containing surfactants produced by the process and includes both the fatty acids provided in step a), i.e. also the fatty acid-containing organic salts of a divalent cation optionally introduced in step as well as any fatty acids added at a different time.
  • the fatty acids can be in acid form or in the form of their salts.
  • Preferred fatty acids are selected from the group caprylic acid, capric acid, lauric acid, myristic acid, palmitic acid, stearic acid, oleic acid, linoleic acid and mixtures thereof.
  • the liquid detergent containing surfactants contains the salt of a divalent cation.
  • the weight proportion of this salt in the total weight of the liquid detergent containing surfactants is preferably 0.4 to 6% by weight and in particular 0.5 to 4% by weight. These weight proportions have proven to be advantageous both in terms of the appearance and the viscosity of the preparation.
  • the detergent produced according to the invention contains a solvent as the fourth essential component.
  • the proportion by weight of the solvent in the total weight of the detergent preparation is preferably 12 to 32% by weight and in particular 15 to 30% by weight.
  • the liquid, surfactant-containing detergent contains, based on its total weight, 7 to 20% by weight, preferably 10 to 18% by weight, of organic solvent.
  • Preferred organic solvents are selected from the group ethanol, n-propanol, i-propanol, butanols, glycol, propanediol, butanediol, methylpropanediol, glycerin, diglycol, propyl diglycol, butyl diglycol, hexylene glycol, ethylene glycol methyl ether, ethylene glycol ethyl ether, ethylene glycol propyl ether, ethylene glycol mono-n-butyl ether, diethylene glycol methyl ether, diethylene glycol ethyl ether, propylene glycol methyl ether, propylene glycol ethyl ether,
  • Propylene glycol propyl ether dipropylene glycol monomethyl ether, dipropylene glycol monoethyl ether, methoxytriglycol, ethoxytriglycol, butoxytriglycol, 1-butoxyethoxy-2-propanol, 3-methyl-3-methoxybutanol, propylene glycol t-butyl ether, di-n-octyl ether and mixtures thereof, preferably from the group propanediol, glycerin and mixtures thereof.
  • the liquid detergent containing surfactants is preferably a low-water substance mixture. Preference is given to detergents which, based on their total weight, contain less than 18% by weight, preferably less than 15% by weight, of water.
  • the process according to the invention is advantageous for liquid detergents containing surfactants which, based on their total weight, contain i) 20 to 80% by weight of surfactant including 20 to 50% by weight of anionic surfactant; ii) 4 to 12% by weight of fatty acid; iii) 0.5 to 4% by weight of salt of a divalent metallic cation; iv) 8 to 35% by weight of solvent.
  • composition of some of the most commonly produced liquid detergents containing surfactants can be found in the following tables (data in % by weight based on the total weight of the detergent unless otherwise stated).
  • the liquid, surfactant-containing detergent contains, based on its total weight, preferably 12 to 30 wt.%, preferably 15 to 25 wt.% nonionic surfactant.
  • Preferred nonionic surfactants are selected from the group of ethoxylated primary Cs-18 alcohols, preferably ethoxylated primary Cs-is alcohols with a degree of alkoxylation > 4, particularly preferably Ci2-14 alcohols with 4 EO or 7 EO, Cg-n alcohols with 7 EO, Ci3-15 alcohols with 5 EO, 7 EO or 8 EO, Ci3-15 oxo alcohols with 7 EO, Ci2-is alcohols with 5 EO or 7 EO, in particular the Ci2-18 fatty alcohols with 7 EO or the Ci3-15 oxo alcohols with 7 EO.
  • anionic surfactant and nonionic surfactant in a weight ratio of 3:1 to 1:2, preferably 2:1 to 1:1.5 and in particular 1.4:1 to 1:1.
  • the weight proportion of the co-surfactant in the total weight of the flowable detergent preparation is preferably 0.5 to 5% by weight.
  • the co-surfactants are not included in the surfactants described above.
  • Preferred co-surfactants are selected from the group consisting of alkoxylated Cs-Cis fatty alcohols with a degree of alkoxylation ⁇ 3, aliphatic Cs-Cw alcohols, aromatic Cs-Ci4 alcohols, aliphatic Cs-Ci2 dialcohols, monoglycerides of Ci2-Ci8 fatty acids, monoglycerol ethers of Cs-Cis fatty alcohols and mixtures thereof, preferably from the group consisting of alkoxylated Cs-Cis fatty alcohols with a degree of alkoxylation ⁇ 3.
  • a non-ionic co-surfactant from the group consisting of alkoxylated Cs-Cis fatty alcohols with a degree of alkoxylation ⁇ 3, aliphatic Ce-Ci4 alcohols, aromatic Cs-Cw alcohols, aliphatic Ce-Ci2 dialcohols, monoglycerides of Ci2-Ci8 fatty acids, monoglycerol ethers of Cs-Cis fatty alcohols and mixtures thereof, preferably from the group consisting of alkoxylated Cs-Cis fatty alcohols with a degree of alkoxylation ⁇ 3, is continuously introduced into the main line via a secondary line and the outlet opening of the secondary line is preferably located in the effective range of the first dynamic mixer.
  • the co-surfactant is introduced into the liquid composition before the addition of an organic salt of a divalent cation.
  • a second particularly preferred embodiment of the process is characterized in that the liquid surfactant-containing detergent contains, based on its total weight, i) 20 to 50 wt.% anionic surfactant and 12 to 30 wt.% nonionic surfactant; ii) 4 to 12 wt.% fatty acid; iii) 0.5 to 4 wt.% salt of a divalent metallic cation; iv) 8 to 35 wt.% solvent vi) 0.5 to 5 wt.% of a co-surfactant different from the nonionic surfactant selected from the group consisting of alkoxylated Cs-Cis fatty alcohols with a degree of alkoxylation ⁇ 3, aliphatic Ce-Ci4 alcohols, aromatic Ce-Ci4 alcohols, aliphatic Ce-Ci2 dialcohols, monoglycerides of Ci2-Cis fatty acids, monoglycerol ethers of Cs-Cis fatty alcohols and mixtures thereof, preferably
  • composition of some other particularly preferred liquid detergents can be found in the following tables (data in % by weight based on the total weight of the detergent unless otherwise stated).
  • a co-surfactant other than the nonionic surfactant selected from the group consisting of alkoxylated Cs-Cis fatty alcohols with an alkoxylation degree ⁇ 3, aliphatic Ce-Ci4 alcohols, aromatic Ce-Ci4 alcohols, aliphatic C6-C12 dialcohols, monoglycerides of Ci2-Ci8 fatty acids, monoglycerol ethers of Cs-Cis fatty alcohols and mixtures thereof, preferably from the group consisting of alkoxylated Cs-Cis fatty alcohols with an alkoxylation degree ⁇ 3
  • the second product stage preferably has a viscosity (20°C, Brookfield viscometer model DV2T, spindle no. 31, 12 rpm) of 400 to 2000 mPas, preferably 1000 to 1700 mPas.
  • the liquid surfactant-containing detergent is preferably in the form of a structured system.
  • the main types of structured system used in practice are based on dispersed lamellar, spherulitic and weakly lamellar phases.
  • the liquid surfactant-containing detergent preferably contains a spherulitic phase.
  • Spherulitic phases comprise spherical bodies, commonly referred to in the art as spherulites, in which surfactant double layers are arranged as concentric shells.
  • the spherulites are dispersed in an aqueous phase in the manner of a classic emulsion and interact to form a structured system.
  • Preferred second product stages following step e) have lamellar spherulites, preferably with a maximum diameter of 10 to 100 pm, particularly preferably with a maximum diameter of 25 to 50 pm.
  • the second product stage preferably further has a yield point (TA Instruments rotational rheometer AR 2000, 20°C, 40 mm parallel plate, Peltier plate steel) above 0.1 Pa, preferably above 0.3 Pa.
  • a yield point TA Instruments rotational rheometer AR 2000, 20°C, 40 mm parallel plate, Peltier plate steel
  • the rheological properties of the liquid detergent justify its efficient processability in the process according to the invention and also form the basis of its advantageous optical properties, including its cloudy white appearance.
  • NTU Nephelometry Turbidity Unit
  • the HACH Turbidimeter 2100Q from Hach Company, Loveland, Colorado (USA) is used in conjunction with the calibration substances StabICal Solution HACH (20 NTU), StabICal Solution HACH (100 NTU) and StabICal Solution HACH (800 NTU), all of which can also be ordered from Hach Company.
  • the measurement is carried out in a 10 ml measuring cuvette with a cap filled with the composition to be examined and the measurement is carried out at 20 °C.
  • molded bodies With an NTU value (at 20°C) of 60 or more, molded bodies have a perceptible turbidity within the meaning of the invention that is visible to the naked eye.
  • the turbidity (HACH Turbidimeter 2100Q, 20°C, 10 ml cuvette) of the second product stage following step e) is preferably above 60 NTU, preferably above 100 NTU and in particular above 400 NTU.
  • the liquid detergent is preferably free of organic opacifiers. "Free of”, as used in this context, means that the corresponding component is present in the preparation in an amount of ⁇ 1% by weight, preferably ⁇ 0.1% by weight, even more preferably ⁇ 0.01% by weight. In particular, such a component is then not intentionally added.
  • the liquid detergent containing surfactants preferably contains in particular no styrene-acrylate copolymers (INCI: styrene/acrylates copolymer).
  • the liquid detergent containing surfactants produced according to the invention can be free of enzymes and/or fragrances. These components are not included in particular because because they can adversely affect the turbidity and thus the appearance of the formulation.
  • liquid detergents which, based on their total weight, contain less than 2% by weight, less than 1% by weight, preferably less than 0.1% by weight and in particular no enzyme preparation are preferred.
  • liquid detergents which, based on their total weight, contain less than 2% by weight, preferably less than 1% by weight, particularly preferably less than 0.1% by weight and in particular no fragrance.
  • the liquid detergent contains at least one optical brightener, preferably an optical brightener of the stilbene type. This is contained in the liquid detergent, based on its total weight, in an amount above 0% by weight, but preferably in an amount below 1% by weight, particularly preferably in an amount below 0.6% by weight.
  • Stilbene-type brighteners for use in the liquid detergent are preferably selected from the group of triazinyl derivatives of 4,4'-diamino-2,2'-stilbenesulfonic acid.
  • DAS1 diphenyl-4-bis[(4-anilino-6-morpholino-1,3,5-triazin-2-yl)amino]stilbene-2,2-disulfonate
  • DSBP diphenyl-4-bis(2-sulfostyryl)biphenyl
  • the liquid detergent containing surfactants can comprise at least one red, blue or violet dye. This is contained in the liquid detergent, based on its total weight, in an amount above 0% by weight, but preferably in an amount below 0.1% by weight, particularly preferably below 0.02% by weight, for example between 0.001 and 0.01% by weight.
  • a dye serves, for example, the purpose of covering up a possible yellowish tint of the preparation.
  • Suitable dyes includes dyes, dye-clay conjugates, pigments and photobleaching agents. Suitable dyes in turn include low molecular weight dyes and polymer dyes.
  • the dye is selected from the group of low molecular weight dyes.
  • Suitable low molecular weight dyes include dyes that fall into the color index (CI) classifications Direct Blue, Direct Red, Direct Violet, Acid Blue, Acid Red, Acid Violet, Basic Blue, Basic Red and Basic Violet.
  • Exemplary low molecular weight dyes are Direct Violet 9, Direct Violet 35, Direct Violet 48, Direct Violet 51, Direct Violet 66, Direct Violet 99, Direct Blue 1, Direct Blue 71, Direct Blue 80, Direct Blue 279, Acid Red 17, Acid Red 73, Acid Red 88, Acid Red 150, Acid Violet 15, Acid Violet 17, Acid Violet 24, Acid Violet 43, Acid Red 52, Acid Violet 49, Acid Blue 15, Acid Blue 17, Acid Blue 25, Acid Blue 29, Acid Blue 40, Acid Blue 45, Acid Blue 75, Acid Blue 80, Acid Blue 83, Acid Blue 90 and Acid Blue 113, Acid Black 1, Basic Violet 1, Basic Violet 3, Basic Violet 4, Basic Violet 10, Violet 35, Basic Blue 3, Basic Blue 16, Basic Blue 22, Basic Blue 47, Basic Blue 66, Basic Blue 75, Basic Blue 159 and mixtures thereof.
  • the dye is selected from the group of polymeric dyes.
  • Suitable polymeric dyes include conjugated chromogens (dye-polymer conjugates) and polymers in whose basic structure chromogens are polymerized.
  • the group of these polymeric dyes includes, for example, dyes commercially available under the name Liquitint® such as Liquitint® Violet CT, Cl Reactive Blue 19 conjugated with CMC with the product name AZO-CM-Cellulose, alkoxylated polymeric triphenylmethane dyes or alkoxylated polymeric thiphene dyes.
  • a dye-clay conjugate is used as the dye.
  • the group of these dyes includes, among others, conjugates of smectite clay or montmorillonite clay or hectorite clay or saponite clay with a cationic/basic dye from the group C.l. Basic Yellow 1 to 108, C.l. Basic Orange 1 to 69, C.l. Basic Red 1 to 118, C.l. Basic Violet 1 to 51, C.l. Basic Blue 1 to 164, C.l. Basic Green 1 to 14, C.l. Basic Brown 1 to 23, CI Basic Black 1 to 11.
  • this group of dyes includes montmorillonite Basic Blue B7 C.l.
  • pigments selected from the group flavanthrone, indanthrone, chlorinated indanthrone with 1 to 4 chlorine atoms, pyranthrone, dichlorpyranthrone, monobromodichloropyranthrone, dibromodichloropyranthrone, tetrabromopyranthrone, ultramarine blue (C.l. Pigment Blue 29) and ultramarine violet (C.l. Pigment Violet 15).
  • Suitable photobleaching agents are, for example, aluminum phthalocyanine sulfonate or Zinc phthalocyanine sulfonate or mixtures thereof, as commercially available under the name Tinolux®.
  • liquid surfactant-containing detergent is enclosed in a water-soluble film following step e) or step f) to form a detergent portion unit.
  • water-soluble film in a deep-drawing apparatus and to combine it with the liquid detergent to form a detergent portion unit.
  • the water-soluble film in which the liquid detergent is packaged can comprise one or more structurally different water-soluble polymer(s).
  • Polymers from the group of (optionally acetalized) polyvinyl alcohols (PVAL) and their copolymers are particularly suitable as water-soluble polymer(s).
  • Water-soluble films for producing the water-soluble coating are preferably based on a polyvinyl alcohol or a polyvinyl alcohol copolymer whose molecular weight is in the range from 10,000 to 1,000,000 gmol -1 , preferably from 20,000 to 500,000 gmol -1 , particularly preferably from 30,000 to 100,000 gmol -1 and in particular from 40,000 to 80,000 gmol -1 .
  • the preparation of polyvinyl alcohol and polyvinyl alcohol copolymers generally includes the hydrolysis of intermediate polyvinyl acetate.
  • Preferred polyvinyl alcohols and polyvinyl alcohol copolymers have a degree of hydrolysis of 70 to 100 mol%, preferably 80 to 90 mol%, particularly preferably 81 to 89 mol% and in particular 82 to 88 mol%.
  • preferred polyvinyl alcohol copolymers comprise an ethylenically unsaturated carboxylic acid, its salt or its ester.
  • such polyvinyl alcohol copolymers particularly preferably contain sulfonic acids such as 2-acrylamido-2-methyl-1-propanesulfonic acid (AMPS), acrylic acid, methacrylic acid, acrylic acid esters, methacrylic acid esters or mixtures thereof; among the esters, C 1-4 alkyl esters or hydroxyalkyl esters are preferred.
  • AMPS 2-acrylamido-2-methyl-1-propanesulfonic acid
  • Other suitable monomers are ethylenically unsaturated dicarboxylic acids, for example itaconic acid, maleic acid, fumaric acid and mixtures thereof.
  • Suitable water-soluble films are sold, for example, by MonoSol LLC under the designation M8630, M8720, M8310, C8400 or M8900.
  • Other suitable films include films called Solublon® PT, Solublon® GA, Solublon® KC or Solublon® KL from Aicello Chemical Europe GmbH or the VF-HP films from Kuraray.
  • the water-soluble films may contain additional active ingredients or fillers as well as plasticizers and/or solvents, in particular water.
  • the group of other active ingredients includes, for example, materials that protect the ingredients of preparation (A) enclosed in the film material from decomposition or deactivation by light irradiation.
  • Antioxidants, UV absorbers and fluorescent dyes have proven to be particularly suitable here.
  • plasticizers examples include glycerin, ethylene glycol, diethylene glycol, propanediol, 2-methyl-1,3-propanediol, sorbitol or mixtures thereof.
  • the surface of the water-soluble film can optionally be dusted with fine powder.
  • Sodium aluminosilicate, silicon dioxide, talc and amylose are examples of suitable powdering agents.
  • liquid surfactant-containing detergent in a water-soluble film following step c) to form a detergent portion unit with a plurality of receiving chambers.
  • the multiple receiving chambers of the detergent portion unit can be arranged next to one another or one above the other (stacked). While the method according to the invention can basically be used to produce both types of configuration, the technical advantages of the method according to the invention are particularly noticeable in the production of detergent portion units with receiving chambers arranged next to one another. On the one hand, the specific rheological properties of the liquid detergent allow rapid and drip-free dosing even into the smallest cavities, and on the other hand, the horizontal arrangement of the receiving chambers increases the perceptibility of the liquid detergent.
  • the detergent portion unit has at least two receiving chambers that at least partially enclose one another. It is also particularly preferred if the detergent portion unit has at least one further receiving chamber that is filled with a colored detergent preparation.
  • An exemplary preferred detergent portion unit that can be produced by means of the method according to the invention has at least two receiving chambers, which are surrounded by a water-soluble film, wherein one receiving chamber is filled with the liquid surfactant-containing detergent and the other receiving chamber is filled with a second colored detergent that is different from the liquid surfactant-containing detergent.
  • Another exemplary preferred detergent portion unit comprises at least three receiving chambers which are surrounded by a water-soluble film, wherein one receiving chamber is filled with the liquid surfactant-containing detergent and at least two further receiving chambers are filled separately from one another with a second and a third detergent which is different from one another and from the liquid surfactant-containing detergent.
  • the detergent portion unit has at least four receiving chambers which are surrounded by a water-soluble film, wherein one receiving chamber is filled with the liquid surfactant-containing detergent and the other three receiving chambers are filled separately from one another with a second and a third and a fourth colored detergent which are different from one another and from the first liquid surfactant-containing detergent.
  • This registration provides, among others, the following items:
  • % solvent comprising the steps: a) providing a first liquid composition containing surfactant, fatty acid and solvent and introducing the first liquid composition into a main line; b) introducing the salt of a divalent cation into the liquid composition to form a salt-containing composition; c) mixing the salt-containing composition by means of a first dynamic mixer to form a first product stage; d) intermediate storage of the first product stage in an intermediate storage container; e) mixing the intermediately stored first product stage in a second dynamic mixer to form a second product stage.
  • the salt of a divalent cation in step b) is introduced into the liquid composition in the form of an aqueous solution and the salt is selected from the group of inorganic salts of divalent metallic cations, in particular magnesium and calcium salts, preferably from the group magnesium chloride, magnesium sulfate, calcium chloride and calcium sulfate, in particular from the group magnesium chloride and calcium chloride, very particularly preferably calcium chloride.
  • step b) The process according to item 5, wherein the inorganic salt of a divalent cation in step b) is introduced into the liquid composition in the form of an alkaline aqueous solution.
  • step b) wherein the salt of a divalent cation in step b) is introduced into the liquid composition in the form of a dispersion and the salt is selected from the group of organic salts of divalent metallic cations, in particular magnesium and calcium salts, preferably from the group of fatty acid salts of magnesium and calcium, in particular fatty acid salts of calcium.
  • the salt of the divalent cation is selected from the group of calcium salts of caprylic acid, capric acid, lauric acid, myristic acid, palmitic acid, stearic acid, oleic acid, linoleic acid and mixtures thereof, in particular from the group of calcium stearates.
  • step b) comprises inorganic salt and organic salt, preferably calcium chloride and calcium stearate.
  • the salt of a divalent cation comprises inorganic salt of a divalent cation and organic salt of a divalent cation and the inorganic salt of a divalent cation and the organic salt of a divalent cation in step b) are continuously introduced into the main line via separate secondary lines and the outlet opening of the secondary lines are preferably located in the effective range of the first dynamic mixer.
  • the salt of a divalent cation comprises inorganic salt of a divalent cation and organic salt of a divalent cation and the inorganic salt of a divalent cation and the organic salt of a divalent cation in step b) are simultaneously introduced into the main line via separate secondary lines and the outlet opening of the secondary lines are preferably located in the effective range of the first dynamic mixer.
  • the salt of a divalent cation comprises inorganic salt of a divalent cation and organic salt of a divalent cation and the inorganic salt of a divalent cation and the organic salt of a divalent cation in step b) are continuously introduced into the main line as a mixture via a secondary line and the outlet opening of the secondary line is preferably located in the effective range of the first dynamic mixer.
  • Composition in step c) takes place continuously.
  • Composition in step c) is carried out for a period of time of 0.5 to 20 seconds, preferably 2 to 12 seconds.
  • step c) Process according to one of the preceding points, wherein the mixing of the salt-containing composition in step c) is carried out with an energy input of 600 to 2000 kW/m 3 , preferably of 900 to 1400 kW/m 3 .
  • step c) Process according to one of the preceding points, wherein the mixing of the salt-containing composition in step c) is carried out at a shear rate of 2000 to 12000 s -1 , preferably of 6000 to 9000 s -1 .
  • liquid, surfactant-containing detergent contains, based on its total weight, 30 to 75 wt.%, preferably 40 to 70 wt.% surfactant.
  • liquid, surfactant-containing detergent contains, based on its total weight, 20 to 60 wt.%, preferably 25 to 50 wt.% of anionic surfactant.
  • At least one anionic surfactant preferably at least one anionic surfactant from the group consisting of Cs-18-alkylbenzenesulfonates, Cs-is-olefinsulfonates, Cs-alkanesulfonates, Cs-is-estersulfonates, Cs-18-alkyl sulfates, Cs-is-alkenyl sulfates, fatty alcohol ether sulfates, in particular at least one anionic surfactant from the group of Cs-is-alkylbenzenesulfonates, is contained as surfactant.
  • at least one anionic surfactant preferably at least one anionic surfactant from the group consisting of Cs-18-alkylbenzenesulfonates, Cs-is-olefinsulfonates, Cs-alkanesulfonates, Cs-is-estersulfonates, Cs-18-alkyl sulfates, Cs-is-alkeny
  • liquid, surfactant-containing detergent contains, based on its total weight, 4 to 12 wt.%, preferably 6 to 10 wt.% fatty acid.
  • fatty acid is selected from the group caprylic acid, capric acid, lauric acid, myristic acid, palmitic acid, stearic acid, oleic acid, linoleic acid and mixtures thereof.
  • liquid, surfactant-containing detergent contains, based on its total weight, 0.4 to 6 wt.%, preferably 0.5 to 4 wt.% of salt of a divalent cation.
  • liquid surfactant-containing detergent contains, based on its total weight, i) 20 to 80% by weight of surfactant including 20 to 50% by weight of anionic surfactant; ii) 4 to 12% by weight of fatty acid; iii) 0.5 to 4% by weight of salt of a divalent metallic cation; iv) 8 to 35% by weight of solvent.
  • liquid, surfactant-containing detergent contains, based on its total weight, 12 to 32 wt.%, preferably 15 to 30 wt.% solvent.
  • the liquid, surfactant-containing detergent contains, based on its total weight, 7 to 20 wt.%, preferably 10 to 18 wt.% of organic solvent.
  • the organic solvent is selected from the group ethanol, n-propanol, i-propanol, butanols, glycol, propanediol, butanediol, methylpropanediol, glycerin, diglycol, propyl diglycol, butyl diglycol, hexylene glycol, ethylene glycol methyl ether, ethylene glycol ethyl ether, ethylene glycol propyl ether, ethylene glycol mono-n-butyl ether, diethylene glycol methyl ether, diethylene glycol ethyl ether, propylene glycol methyl ether, propylene glycol ethyl ether, propylene glycol methyl ether, propylene glycol ethyl ether, propylene glycol methyl
  • liquid, surfactant-containing detergent contains, based on its total weight, less than 18 wt.%, preferably less than 15 wt.% water.
  • liquid, surfactant-containing detergent comprises, based on its total weight, 12 to 30 wt.%, preferably 15 to 25 wt.% nonionic surfactant.
  • the surfactant present is at least one nonionic surfactant from the group of ethoxylated primary Cs-is alcohols, preferably ethoxylated primary Cs-is alcohols with a degree of alkoxylation > 4, particularly preferably the Ci2-14 alcohols with 4 EO or 7 EO, the Cg-n alcohols with 7 EO, the Cs alcohols with 5 EO, 7 EO or 8 EO, the Ci3-15 oxo alcohols with 7 EO, the Ci2-is alcohols with 5 EO or 7 EO, in particular the C12-18 fatty alcohols with 7 EO or the C -is oxo alcohols with 7 EO.
  • the surfactant present is at least one nonionic surfactant from the group of ethoxylated primary Cs-is alcohols, preferably ethoxylated primary Cs-is alcohols with a degree of alkoxylation > 4, particularly preferably the Ci2-14 alcohols with 4 EO or 7 EO, the Cg-n alcohols
  • step b) a nonionic co-surfactant from the group consisting of alkoxylated Cs-Cis fatty alcohols with a degree of alkoxylation ⁇ 3, aliphatic Cs-Ci4 alcohols, aromatic Cs-Cw alcohols, aliphatic C6-Ci2 dialcohols, monoglycerides of Ci2-Cis fatty acids, monoglycerol ethers of Cs-Cis fatty alcohols and mixtures thereof, preferably from the group consisting of alkoxylated Cs-Cis fatty alcohols with a degree of alkoxylation ⁇ 3 is introduced.
  • a nonionic co-surfactant from the group consisting of alkoxylated Cs-Cis fatty alcohols with a degree of alkoxylation ⁇ 3, aliphatic Cs-Ci4 alcohols, aromatic Cs-Cw alcohols, aliphatic C6-Ci2 dialcohols, monoglycerides of Ci2-Cis fatty acids, monog
  • step b) a non-ionic co-surfactant from the group consisting of alkoxylated Cs-Cis fatty alcohols with a degree of alkoxylation ⁇ 3, aliphatic Cs-Ci4 alcohols, aromatic Cs-Cw alcohols, aliphatic Cs-Ci2 dialcohols, monoglycerides of Ci2-Cis fatty acids, monoglycerol ethers of Cs-Cis fatty alcohols and mixtures thereof, preferably from the group consisting of alkoxylated Cs-Cis fatty alcohols with a degree of alkoxylation ⁇ 3, is continuously introduced into the main line and the outlet opening of the secondary line is preferably located in the effective range of the first dynamic mixer.
  • a non-ionic co-surfactant from the group consisting of alkoxylated Cs-Cis fatty alcohols with a degree of alkoxylation ⁇ 3, is continuously introduced into the main line and the outlet opening of the secondary line is preferably located in the effective range of the
  • liquid, surfactant-containing detergent contains anionic surfactant and nonionic surfactant in a weight ratio of 3:1 to 1:2, preferably from 2:1 to 1:1.5 and in particular from 1.4:1 to 1:1.
  • liquid, surfactant-containing detergent based on its total weight, further contains vi) 0.5 to 5 wt. % of a co-surfactant selected from the group consisting of alkoxylated Cs-Cis fatty alcohols with an alkoxylation degree ⁇ 3, aliphatic Ce-Cw alcohols, aromatic Cs-Cw alcohols, aliphatic Cs-Ci2 dialcohols, monoglycerides of Ci2-Ci8 fatty acids, monoglycerol ethers of Cs-Cis fatty alcohols and mixtures thereof, preferably from the group consisting of alkoxylated Cs-Cis fatty alcohols with an alkoxylation degree ⁇ 3.
  • a co-surfactant selected from the group consisting of alkoxylated Cs-Cis fatty alcohols with an alkoxylation degree ⁇ 3.
  • liquid, surfactant-containing detergent contains, based on its total weight, i) 20 to 50 wt.% anionic surfactant and 12 to 30 wt.% nonionic surfactant; ii) 4 to 12 wt.% fatty acid; iii) 0.5 to 4 wt.% salt of a divalent metallic cation; iv) 8 to 35 wt.% solvent vi) 0.5 to 5 wt.% of a co-surfactant different from the nonionic surfactant selected from the group consisting of alkoxylated Cs-Cis fatty alcohols with a degree of alkoxylation ⁇ 3, aliphatic Cs-Ci4 alcohols, aromatic Cs-Ci4 alcohols, aliphatic Cs-Ci2 dialcohols, monoglycerides of C12-Cis fatty acids, monoglycerol ethers of Cs-Cis fatty alcohols and mixtures thereof,
  • liquid surfactant-containing detergents do not contain any organic opacifiers, in particular no styrene-acrylate copolymer.
  • liquid, surfactant-containing detergent contains, based on its total weight, a red, blue or violet dye in amounts below 0.1% by weight, preferably below 0.02% by weight.
  • step 59 Process according to one of the preceding points, wherein the liquid surfactant-containing detergent is enclosed in a water-soluble film following step e) or step f) to form a detergent portion unit.
  • the detergent portion unit has at least two receiving chambers which are surrounded by a water-soluble film, wherein one receiving chamber is filled with the liquid surfactant-containing detergent and the other receiving chamber is filled with a second colored detergent different from the liquid surfactant-containing detergent.
  • the detergent portion unit has at least three receiving chambers which are surrounded by a water-soluble film, wherein one receiving chamber is filled with the liquid surfactant-containing detergent and the other two receiving chambers are filled separately from one another with a second and a third detergent which is different from one another and from the liquid surfactant-containing detergent.
  • the detergent portion unit has at least four receiving chambers which are surrounded by a water-soluble film, wherein one receiving chamber is filled with the liquid surfactant-containing detergent and the other three receiving chambers are filled separately from one another with a second and a third and a fourth colored detergent which are different from one another and from the first liquid surfactant-containing detergent.
  • a liquid, surfactant-containing detergent of the following composition was prepared by the process according to the invention.
  • the liquid detergent containing surfactants is characterized by a stable viscosity (20°C, Brookfield Viscometer Model DV2T, spindle no. 31, 12 rpm) in the range from 1200 to 1440 mPas even after storage at 22°C for a period of 120 hours.
  • This temporally stable viscosity is achieved in comparison to a conventional process by using a second dynamic mixer in step e) of the process. Without the use of this second mixing process in process step e), the viscosity (20°C, Brookfield Viscometer Model DV2T, spindle no. 31, 12 rpm) of the liquid detergent containing surfactants increases from the original 1300 to 1960 mPas over the course of 24 hours.
  • the detergent composition described in Table 1 was prepared by the two processes V1 and V2 (according to the invention) described below:

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Abstract

L'invention concerne un procédé de production d'un détergent contenant un tensioactif liquide, contenant : i) 20 à 80 % en poids d'un tensioactif ; ii) 2 à 15 % en poids d'acide gras ; iii) 0,3 à 8 % en poids de sel d'un cation divalent ; iv) 8 à 35 % en poids de solvant ; le procédé comprenant les étapes suivantes consistant à : a) fournir une première composition liquide contenant du tensioactif, de l'acide gras et du solvant, et transporter la première composition liquide dans un tuyau principal ; b) introduire le sel d'un cation divalent dans la composition liquide pour former une composition contenant un sel ; c) mélanger la composition contenant un sel au moyen d'un premier mélangeur dynamique pour former un produit de première étape ; d) stocker temporairement le produit de première étape dans un récipient de stockage temporaire ; e) mélanger le produit de première étape stocké temporairement dans un second mélangeur dynamique pour former un produit de seconde étape.
PCT/EP2024/062492 2023-06-07 2024-05-07 Procédé de production d'un détergent liquide Ceased WO2024251446A1 (fr)

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EP23177990.1 2023-06-07

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022017726A1 (fr) * 2020-07-23 2022-01-27 Henkel Ag & Co. Kgaa Procédé de production d'un agent de lavage présentant des propriétés optiques et rhéologiques améliorées
DE102020007520A1 (de) * 2020-12-09 2022-06-09 Ovidiu Dicoi Modifizierte strukturierte, fließfähige Wasch- und Reinigungsmittel
EP4155374A1 (fr) 2021-09-22 2023-03-29 Henkel AG & Co. KGaA Procédé de fabrication d'un détergent aux propriétés optiques et rhéologiques améliorées

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022017726A1 (fr) * 2020-07-23 2022-01-27 Henkel Ag & Co. Kgaa Procédé de production d'un agent de lavage présentant des propriétés optiques et rhéologiques améliorées
DE102020007520A1 (de) * 2020-12-09 2022-06-09 Ovidiu Dicoi Modifizierte strukturierte, fließfähige Wasch- und Reinigungsmittel
EP4155374A1 (fr) 2021-09-22 2023-03-29 Henkel AG & Co. KGaA Procédé de fabrication d'un détergent aux propriétés optiques et rhéologiques améliorées

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