EP3230430A1 - VERFAHREN ZUR HERSTELLUNG FLÜSSIGER, TENSID-ENTHALTENDER ZUSAMMENSETZUNGEN MIT FLIEßGRENZE - Google Patents
VERFAHREN ZUR HERSTELLUNG FLÜSSIGER, TENSID-ENTHALTENDER ZUSAMMENSETZUNGEN MIT FLIEßGRENZEInfo
- Publication number
- EP3230430A1 EP3230430A1 EP15804529.4A EP15804529A EP3230430A1 EP 3230430 A1 EP3230430 A1 EP 3230430A1 EP 15804529 A EP15804529 A EP 15804529A EP 3230430 A1 EP3230430 A1 EP 3230430A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- surfactant
- composition
- liquid
- mpa
- particles
- 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.)
- Granted
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
- C11D17/0008—Detergent materials or soaps characterised by their shape or physical properties aqueous liquid non soap compositions
- C11D17/0013—Liquid compositions with insoluble particles in suspension
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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
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/02—Anionic compounds
- C11D1/12—Sulfonic acids or sulfuric acid esters; Salts thereof
- C11D1/22—Sulfonic acids or sulfuric acid esters; Salts thereof derived from aromatic compounds
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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
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/02—Anionic compounds
- C11D1/12—Sulfonic acids or sulfuric acid esters; Salts thereof
- C11D1/29—Sulfates of polyoxyalkylene ethers
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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
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/66—Non-ionic compounds
-
- 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
- C11D17/0039—Coated compositions or coated components in the compositions, (micro)capsules
Definitions
- the present invention relates to a process for the preparation of liquid compositions with yield stress, which contain one or more surfactants, as well as those obtained therefrom
- Liquid, surfactant-containing compositions have become indispensable in everyday life.
- these are personal care products such as shampoos, shower gels or bubble baths.
- washing or cleaning agents such as household cleaners, fabric softener, laundry detergent, floor care products, all-purpose cleaner, manual
- Dishwashing compositions automatic dishwashing detergents or heavy-duty detergents are included hereof.
- compositions are now produced in a batch process.
- the batch process often referred to as batch production, is a discontinuous one
- a reaction vessel is completely filled with the starting materials, ie the educts.
- the reaction of the reactants with each other towards the final product takes place within the reaction vessel.
- the reaction vessel is completely emptied and the desired formulation is filled into suitable containers for sale or optionally for storage.
- the reaction vessel has to be prepared for the next filling. This means a thorough cleaning of the reaction vessel and optionally the lines through which the starting materials are introduced into the reaction vessel, and the
- Reaction vessel can be adjusted if necessary. Replenishment of individual components are possible here. In terms of quality, this must take into account the possibility of batch tracing.
- reaction vessel is always completely filled; that is, it will always be produced large quantities of a product.
- a batch or batch
- it must be processed first before another batch batch approach can be made. Is not a direct processing or filling possible, an already manufactured product must be stored outside the reaction vessel. Again, this leads to a high space requirement and the creation of additional costs.
- Reaction vessel as in the batch process. Rather, the mixing takes place within a pipe. In this line, the individual ingredients of a recipe are dosed in a predefined order. At the end of this line immediately bottling.
- liquid detergents and cleaning agents which, even after storage and transport, develop optimally at the time of use. This requires that the contents of the liquid washing and cleaning agent have neither been previously deposited or decomposed nor volatilized.
- a concept for the incorporation of sensitive, chemically or physically incompatible as well as volatile components consists in the use of particles and in particular microcapsules in which these ingredients are trapped stable storage and transport.
- structuring agents are often used, which usually after activation with the remaining constituents of the formulation, such as surfactants, solvents or builders are mixed together, whereby a structured product by generating a
- Such external structuring can be achieved, for example, by the use of structuring gums, such as xanthan gum, guar gum, locust bean gum, gellan gum, wellar gum or carrageenan or of polyarcrylate thickeners. From an aesthetic point of view, it is desirable for the agents to be transparent or at least translucent. However, the use of structuring gums often results in cloudy compositions.
- liquid detergents are described, which are capable of suspending particles in a size of 300 to 5000 ⁇ , comprising at least 15 wt .-% of surfactant and 0.01 to 5 wt .-% of a polymeric gums.
- the application contains no information as to whether the liquid detergents have yield points.
- Concentrations of Anionentensiden can drastic increases in viscosity occur that greatly affect the handling of detergents and cleaning agents (for example, pump, pour or dosing). It is also not always possible to produce flow limits in systems rich in electrolyte and / or surfactants.
- flow limits can be achieved by forming a lamellar structure of the surfactants.
- certain amounts of surfactants, cosurfactants and inorganic salt are mixed together to change the originally micellar structure of the surfactants by means of cosurfactants and salts in a lamellar structure.
- Corresponding structured means are described in detail, for example, in WO 2013/064357 A1.
- EP 1 466 959 A1 describes flow-limiting formulations with high amounts of anionic surfactants which have no polymeric thickener but anionic and cationic surfactants in a specific ratio which is effective to produce a flow limit.
- Centrifugation occurring centrifugal forces are stable, so that in particular the new or further development of recipes is difficult.
- a fabric e.g. a composition according to the definition of the invention is solid when in the solid state at 25 ° C and 1013 mbar.
- a fabric e.g. a composition according to the definition of the invention is liquid when in liquid state at 25 ° C and 1013 mbar.
- liquid also includes gel.
- an approximately air-free production process in which both liquid and solid starting materials can be used, realized thereby can be that in a first step in a batch process, a basic recipe is prepared, which is then differentiated in a second step.
- the object underlying the present invention is therefore achieved by a process for the preparation of a liquid, surfactant-containing composition with yield point, in which in a first step in a batch process, a base formulation comprising at least one surfactant and at least one solvent prepared and this basic formula in a subsequent second step is differentiated in a continuous process.
- the composition according to the invention has a yield point.
- the yield point is understood as the shear stress (in Pa) below which a specimen exclusively or at least largely elastically deforms and above which an irreversible, plastic deformation, ie, a flow, takes place.
- the yield strength of the liquid, surfactant-containing composition is measured using a TA-Instruments, AR G2 absolute rotary rheometer
- Time increasing shear stress ⁇ r (t) applied For example, the shear stress can be increased from the lowest possible value (for example, 0.01 Pa) to, for example, 100 Pa in the course of 30 minutes.
- the deformation ⁇ of the sample is measured. The deformation is plotted against the shear stress in a log log plot (log / vs log ⁇ ). If the tested sample has a yield point, it can be recognized by a sudden change in the curve. Below a certain shear stress, one finds a purely elastic deformation. The slope of the curve ⁇ ( ⁇ ) (log-log plot) in this area is one. Above this shear stress begins viscous flow and the slope of the curve is suddenly higher.
- the shear stress at which the bending of the curve takes place ie the transition from the elastic to a plastic deformation, marks the yield point.
- the composition according to the invention preferably has a yield point in the range from 0.01 Pa to 50 Pa, preferably from 0.1 Pa to 10 Pa, particularly preferably from 0.5 Pa to 5 Pa. In this case, those compositions are particularly preferred which have a yield point of not more than 10 Pa. Such are particularly well filled and well dosed by the consumer.
- the basic formulation comprises at least one surfactant and at least one
- the base formulation may thus have one or more surfactants. These surfactants are selected from the group consisting of anionic, cationic, zwitterionic, nonionic surfactants and mixtures thereof. If the composition comprises a plurality of surfactants, these may be, for example, several different nonionic surfactants. However, it is also possible that the composition comprises, for example, both nonionic and anionic surfactants. This applies analogously to the other surfactants.
- the base formulation comprises at least one anionic surfactant and at least one nonionic surfactant.
- the level of surfactant in the final composition is preferably 0.1 to 40% by weight of surfactant, more preferably 5 to 30% by weight of surfactant, even more preferably 10 to 25% by weight of surfactant.
- the base formulation comprises an anionic surfactant
- this is preferably selected from the group consisting of C 9-13 -alkylbenzenesulfonates, olefin-sulfonates, C 12-15 -alkanesulfonates, ester sulfonates, alk (en) ylsulfates, fatty alcohol ether sulfates and mixtures thereof. It has been found that these sulfonate and sulfate surfactants are particularly suitable for the preparation of stable liquid compositions with yield point. Liquid compositions comprising anionic surfactant C9-i3-alkylbenzenesulfonates and fatty alcohol ether sulfates have particularly good dispersing properties.
- Preferred surfactants of the sulfonate type are C9-i3-alkylbenzenesulfonates, olefinsulfonates, that is to say mixtures of alkene and hydroxyalkanesulfonates and disulfonates, as are obtained, for example, from C12-monoolefins having a terminal or internal double bond by sulfonating with gaseous sulfur trioxide and subsequent alkaline or acidic hydrolysis of the sulfonation obtained.
- C 12 -is alkanesulfonates and the esters of ⁇ -sulfo fatty acids for example the ⁇ -sulfonated methyl esters of hydrogenated coconut, palm kernel or tallow fatty acids.
- Alk (en) ylsulfates are the alkali metal and in particular the sodium salts of
- Sulfuric acid half esters of C 12 -18 fatty alcohols for example from coconut fatty alcohol,
- Ci2-Ci6-alkyl sulfates and Ci2-Ci5-alkyl sulfates and Cw-cis-alkyl sulfates 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 C7-2i alcohols ethoxylated with from 1 to 6 mol of ethylene oxide, such as 2-methyl-branched C9-11 alcohols having on average 3.5 moles of ethylene oxide (EO) or C12- Fatty alcohols with 1 to 4 EO are suitable.
- the liquid composition of the invention contains a mixture of sulfonate and sulfate surfactants.
- the liquid composition contains C9-i3-alkylbenzenesulfonates and fatty alcohol ether sulfates as the anionic surfactant.
- the liquid composition in the base formulation may also contain soaps. Suitable are saturated and unsaturated fatty acid soaps, such as the salts of lauric acid, myristic acid, palmitic acid, stearic acid, (hydrogenated) erucic acid and
- anionic surfactants and the soaps may be in the form of their sodium, potassium or
- the anionic surfactants are in the form of their sodium salts.
- Further preferred counterions for the anionic surfactants are also the protonated forms of choline, triethylamine, monoethanolamine or methylethylamine.
- the base formulation may also comprise at least one nonionic surfactant in addition to the anionic surfactant.
- the nonionic surfactant includes alkoxylated fatty alcohols, alkoxylated fatty acid alkyl esters, fatty acid amides, alkoxylated fatty acid amides, polyhydroxy fatty acid amides, alkylphenol polyglycol ethers, amine oxides, alkyl polyglucosides, and mixtures thereof.
- the nonionic surfactant used is preferably alkoxylated, advantageously ethoxylated, in particular primary, alcohols having preferably 8 to 18 carbon atoms and on average 4 to 12 moles of ethylene oxide (EO) per mole of alcohol, in which the alcohol radical can be linear or preferably methyl-branched in the 2-position or may contain linear and methyl-branched radicals in the mixture, as they are usually present in Oxoalkoholresten.
- alcohol ethoxylates having linear radicals of alcohols of native origin having 12 to 18 carbon atoms, for example coconut, palm, tallow or oleyl alcohol, and on average 5 to 8 EO per mole of alcohol are preferred.
- the preferred ethoxylated alcohols include
- Ci2-i4 alcohols with 4 EO or 7 EO C9-n-alcohol with 7 EO, C-ms alcohols with 5 EO, 7 EO or 8 EO, Ci2-is alcohols with 5 EO or 7 EO and mixtures from these.
- the degrees of ethoxylation given represent statistical means which, for a particular product, may be an integer or a fractional number.
- Preferred alcohol ethoxylates have a narrow homolog distribution (narrow rank ethoxylates, NRE).
- fatty alcohols with more than 12 EO can also be used.
- Nonionic surfactants containing EO and PO groups together in the molecule can also be used according to the invention. Also suitable are also a mixture of a (more) branched ethoxylated fatty alcohol and an unbranched ethoxylated fatty alcohol, such as a mixture from a Ci6-i8 fatty alcohol with 7 EO and 2-propylheptanol with 7 EO.
- the washing, cleaning, after-treatment or washing assistant particularly preferably contains a C 12-18 fatty alcohol with 7 EO or a C-ms oxo alcohol with 7 EO as nonionic surfactant.
- composition prepared according to the invention further comprises one or more solvents in its basic formulation.
- This may be water and / or non-aqueous
- the base formulation contains water as the main solvent.
- the masterbatch may further comprise non-aqueous solvents. Suitable non-aqueous solvents include monohydric or polyhydric alcohols, alkanolamines or glycol ethers.
- the solvents are preferably selected from ethanol, n-propanol, i-propanol, butanols, glycol, propanediol, butanediol, methylpropanediol, glycerol, diglycol, propyldiglycol, butyldiglycol, hexyleneglycol, ethylene glycol methyl ether, ethylene 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
- Batch process or batch process prepared a base formulation, which in particular has a viscosity of 1000 mPa ⁇ s or less, in particular 200 to 800 mPa ⁇ s, especially 400 to 700 mPa ⁇ s.
- the viscosity is determined at a temperature of 20 ° C (Viscometer HATDV II from Brookfield, 20 rpm spindle 2).
- the basic formula air is added. Due to the low viscosity, however, this air can escape from the basic formulation within a very short time without any intervention, so that in effect an approximately air-free product is obtained.
- the base formulation may further comprise builders and / or alkaline substances.
- builders for example, polymeric polycarboxylates are suitable. These are, for example, the
- Alkali metal salts of polyacrylic acid or polymethacrylic acid for example, those having a molecular weight of 600 to 750,000 g / mol.
- Suitable polymers are in particular polyacrylates, which preferably have a molecular weight of from 1,000 to 15,000 g / mol. Because of their superior solubility, the short-chain polyacrylates, which have molecular weights of from 1,000 to 10,000 g / mol, and particularly preferably from 1,000 to 5,000 g / mol, may again be preferred from this group. Also suitable are copolymeric polycarboxylates, in particular those of acrylic acid with methacrylic acid and of acrylic acid or methacrylic acid with maleic acid. To improve the water solubility, the polymers may also contain allylsulfonic acids, such as allyloxybenzenesulfonic acid and methallylsulfonic acid, as a monomer.
- Suitable builders which may be present in the composition according to the invention are, in particular, silicates, aluminum silicates (in particular zeolites), carbonates, salts of organic di- and polycarboxylic acids and mixtures of these substances.
- Organic builders which may furthermore be present in the composition according to the invention are, for example, those which can be used in the form of their sodium salts
- Polycarboxylic acids polycarboxylic acids being understood to mean those carboxylic acids which carry more than one acid function. These are, for example, citric acid, adipic acid, succinic acid, glutaric acid, malic acid, tartaric acid, maleic acid, fumaric acid, sugar acids, aminocarboxylic acids, nitrilotriacetic acid (NTA), methylglycine diacetic acid (MGDA) and derivatives thereof and mixtures thereof.
- NTA nitrilotriacetic acid
- MGDA methylglycine diacetic acid
- Polycarboxylic acids such as citric acid, adipic acid, succinic acid, glutaric acid, tartaric acid, sugar acids and mixtures thereof.
- soluble builders such as, for example, citric acid, or acrylic polymers having a molar mass of from 1,000 to 5,000 g / mol in the basic formulation.
- alkaline substances or wash alkalis are chemicals for raising and stabilizing the pH of the composition.
- ingredients which are present exclusively as a solid and thus can not be introduced into a composition in a continuous process For example, this relates to citric acid and its salts, such as sodium citrate, or boric acid. These must be introduced as a solution or suspension.
- a differentiation of the basic formulation then takes place in a second step following the first step.
- Compositions are, for example, dyes, perfume compositions, enzymes dyes, perfume capsules, microbeads, opacifiers, dye transfer inhibitors (DTI), brighteners, salt solutions, co-surfactants or water.
- DTI dye transfer inhibitors
- the continuous process is characterized in that there is an overpressure within the plant in which the continuous process takes place.
- the basic recipe is passed through a pipe system. By means of pumps, the flow rate of the composition and thus the pressure in the pipe system is controlled. Pressure sensors attached to the piping system allow feedback to the pumps to control the pressure within the piping system. For example, pressure sensors of the company Endress and Hauser, Germany can be used.
- the line into which the basic formulation is introduced is called the main stream. In this line, the other components are dosed to differentiate the basic formula.
- the continuous process under overpressure allows to avoid a gas / air entry into the composition.
- the continuous process at a relative to the ambient pressure increased pressure of 0.1 to 6 bar, in particular from 0.5 to 4 bar performed.
- liquid products are used to differentiate the basic formulation.
- Liquid products within the meaning of the present invention are liquids or solutions of solids in a suitable solvent as well as stable suspensions, dispersions or emulsions.
- the differentiation runs along the main stream, through which the basic formula flows.
- the compositions to be metered can be premixed and dosed together into the main stream or individually or in different combinations of eg 2-3 components are metered via separate feed lines in the main stream.
- a mixer in particular a static mixer, which ensures the rapid and homogeneous distribution of the metered means in the main stream.
- dyes, microcapsules and perfume can be metered separately from each other in the stream. From the introduction of the basic recipe, the perfume can be used first, and the dye in a subsequent step be dosed.
- the order of dosing can also be done in reverse order, ie first dye and then perfume.
- a dye is first dosed into the basic formulation and only in a later step is the perfume or another substance, the path taken by the dye through the system is long, so that when changing the recipe, significantly more cleaning effort has to be done to remove the last traces of dye. Therefore, it may be advantageous to dose dyes last in the main stream to allow a quick and favorable change of the dye.
- the place of dosage of perfume is to be determined in this regard.
- the visual perception is stronger than the odor-specific, so in case of doubt, the colorant to be dosed after the perfume, to avoid that the consumer perceives unintentional product discoloration by recipe change.
- the differentiation is effected in particular by the addition of one or more cosurfactants and / or one or more electrolytes.
- the co-surfactant or the co-surfactants change the micellar structure of the surfactants in the basic formulation.
- electrolytes By one or more electrolytes, this effect can be strengthened. This results in a lamellar structure of the surfactants.
- Corresponding structured detergents or cleaning agents with yield strength are described in the prior art, for example in WO 2013/064357 A1. The content of this application is fully incorporated by reference.
- Co-surfactants for the purposes of the present invention are amphiphilic molecules with a small, hydrophilic head group. In a binary system with water, these co-surfactants are often only weakly or not at all soluble. Accordingly, they do not form micelles there either. In the presence of the surfactants of the basic formulation, the co-surfactants are incorporated into their associates, thereby changing the morphology of these associates. The spherical micelles become rod-shaped and / or disc-shaped micelles. With a sufficiently high total surfactant content, lamellar phases or structures are formed.
- the cosurfactant is preferably selected from the group consisting of alkoxylated Cs-ds fatty alcohols having a degree of alkoxylation ⁇ 3, C6-C4 aliphatic alcohols, C6-C4 aromatic alcohols, aliphatic C6-C12 dialcohols, monoglycerides of C12-C18 fatty acids,
- Monoglycerol ethers of Cs-ds fatty alcohols and mixtures thereof are suitable cosurfactants.
- suitable cosurfactants are 1-hexanol, 1-heptanol, 1-octanol, 1, 2-octanediol, stearin monoglycerol and
- fragrance alcohols such as geraniol, nerol, citronellol, linalool, rhodinol and other terpene alcohols or fragrance aldehydes such as lilial or decanal as co-surfactants.
- Preferred cosurfactants are C 12 -18 fatty alcohols having a degree of alkoxylation ⁇ 3. These cosurfactants are incorporated particularly well into the preferred associations of anionic and nonionic surfactant.
- Suitable alkoxylated C 12 -18 fatty alcohols having a degree of alkoxylation of ⁇ 3 include, for example, 1-C 3 H 2 70 (CH 2 CH 2 O) 2 H, 1-Ci 3 H 2 70 (CH 2 CH 2 O) 3 H, C 12 -i4-alcohol with 2 EO, C 12-14 -alcohol with 3 EO , Cis-is-alcohol with 3 EO, Ci 2 -i8-alcohols with 2 EO and Ci 2 -i8-alcohols with 3 EO.
- An electrolyte in the sense of the present invention is an inorganic salt.
- Preferred inorganic salts include sodium chloride, potassium chloride, sodium sulfate, sodium carbonate, potassium sulfate, potassium carbonate, sodium bicarbonate, potassium bicarbonate,
- compositions are obtained using sodium chloride or mixtures of sodium chloride and potassium sulfate.
- the addition of the inorganic salt promotes the formation of lamellar structures.
- the inorganic salt has an influence on the viscosity, so that the viscosity of the liquid composition can be adjusted by means of the inorganic salt.
- the compositions prepared according to prior art methods can not or not to the same extent stabilize the gas / air entries in the compositions such that the lamellar structure is enhanced by buoyancy of the gas bubbles is at least partially destroyed and mix in the individual layers located components.
- optical particles can attach to the gas bubbles and be floated with.
- the flow limit is produced by the dosage of the cosurfactants and / or one or more electrolytes in the continuous process.
- This has the advantage that the components metered in the continuous process are the same in the desired lamellar structure.
- the proportion of cosurfactants and / or electrolytes in the final liquid, surfactant-containing composition having a yield point of up to 15% by weight, preferably up to 10% by weight, more preferably up to 5% by weight.
- the base formulation in the second step further dispersed particles are added for differentiation.
- Dispersed particles in the sense of the present invention are not soluble in the solvent of the basic formulation. They can, however, be dispersed therein.
- the inventive method allows a homogeneous distribution and stable dispersion of these particles. According to the invention, these dispersed particles may be functional and / or have an aesthetic function. Functional materials influence the effect of
- the dispersed particles are visible particles. This means that the particles are clearly visible to the consumer with the eye in the composition (in the final product) and to be distinguished from the other constituents.
- colored particles are meant herewith. Such particles give the composition a special impression that is appreciated by consumers.
- the composition may contain a dissolved dye and, in addition, colored particles having a color that is a contrasting color to the dissolved dye.
- Functionally dispersed particles can, for the purposes of the present invention, be capsules,
- capsule means on the one hand aggregates with a core-shell structure and on the other hand aggregates with a matrix.
- Core-shell capsules contain at least one solid or liquid core, which is enclosed by at least one continuous shell, in particular a shell of polymer (s).
- active ingredients of the liquid composition
- active ingredients for example, optical brighteners, surfactants, complexing agents, bleaching agents, bleach activators, bleach catalysts, dyes and fragrances, antioxidants, builders, enzymes, enzyme stabilizers, antimicrobial agents,
- the fillings of the capsules may be solids or liquids in the form of solutions or emulsions or suspensions.
- the dispersed particles may have a density which corresponds to that of the liquid composition. According to the invention, this means that the density of the dispersed particles corresponds to 90% to 1 10% of the composition. However, it is also possible that the dispersed particles have a different density. Nevertheless, it is due to the invention Method also possible here to obtain a uniform dispersion of the particles in the composition. They can consist of different materials such as alginates, gelatin, cellulose, agar, waxes or polyethylenes. Particles which do not have a core-shell structure may also have an active ingredient in a matrix of a matrix-forming material. Such particles are called "speckies". The matrix formation takes place in these materials, for example via gelation, polyanion-polycation interaction or polyelectrolyte metal ion interaction and is in the prior art as well as
- the object is achieved by a liquid, surfactant-containing composition having a yield point, which is combined with the
- the final composition has a yield value of from 0.01 Pa to 50 Pa, preferably from 0.1 Pa to 10 Pa, more preferably from 0.5 Pa to 5 Pa.
- the composition is characterized in particular in that it has a viscosity measured at 20 ° C of 50,000 mPa ⁇ s or less, in particular 3000 mPa ⁇ s or less.
- the compositions of the invention differ from the known compositions by their lower gas / air content and the higher density associated therewith. As a result, the lamellar structures remain stable longer. Particles in the composition do not accumulate on the surface of the composition as is usual. Thus, the compositions are well fillable without the particles floating after bottling or storage. The absence or lower proportion of gas / air ensures that the composition can be filled more precisely.
- the composition has more surfactant per volume, so that the washing power per volume is higher than in conventional compositions.
- the viscosity of a composition refers to each with a Brookfield viscometer HATDV II with spindle 2 at 20 U / min at 20 ° C certain value.
- the composition is in particular a body care, washing or cleaning agent.
- Personal care, detergents or cleaning agents in the context of the present invention include cosmetics, household cleaners, fabric softeners, laundry detergents, floor care products, all-purpose cleaners, dishwashing detergents for manual and machine cleaning, heavy-duty detergents, shampoos, shower gels and bubble baths. It is preferably a washing or cleaning agent.
- the process according to the invention allows freedom from air in the product and thus improved product stability compared to processes described in the prior art.
- a "one pass" production enables targeted uniform homogenization.
- overpressure pressure of at least 0, 1 bar above normal pressure is considered.
- the overpressure prevents gases, especially air, from being introduced during differentiation of the composition.
- a product is obtained which is more air-free than products originating from a batch process. This makes it possible to dose the composition more reliably and accurately. Because less gas is included in the compositions of this invention, they have a higher density than comparative compositions.
- the quantities in the exemplary embodiments are in% a.s., In% active substance.
- the data refer in all examples to 100% of the final product.
- Example 2a In the batch process (Example 1, Example 2a) was stirred with a stirrer from Intermig at a speed of 30 to 40 revolutions / min.
- water was initially introduced in a batch kettle.
- the amount of water which is presented here, is about 50 wt .-% to 60 wt .-% based on 100 wt .-% of the final product.
- the choice of the exact amount is within the usual scope of the expert and depends on the desired end product. It should be noted that water can also be added by adding other ingredients.
- the content of water in the end product may according to the invention be from 60% by weight to 75% by weight.
- a complexing agent diethylenetriaminepenta (methylenephosphonic acid) in the form of 7 sodium salt (DTPMP-7Na)
- DTPMP-7Na 7 sodium salt
- Surfactants (2.0% as nonionic surfactant (nonionic surfactant) having 12 to 18 carbon atoms and 7 moles EO / mol, 4.0% as linear alkylbenzenesulfonate having 10 to 13 carbon atoms and 0.5% as a fatty acid with 12 to 18 C atoms and low odor) was added and stirred for a further 15 minutes. Subsequently, another 8% a.s. an anionic surfactant
- the aqueous solution was cooled to a temperature of about 30 to 32 ° C.
- 0.03% as of a defoamer, 2% as ethanol as a solvent, 0.1% as a preservative and 0.35% as of brighteners were added.
- 0.2% perfume capsules, 1, 1% as perfume and 0.28% as color solutions were added and also incorporated.
- enzymes (1, 16% as), a saline solution (3% as), a nonionic surfactant (isotridecanol with 3 moles EO / mole) (2% as) and microbeads (0.25% as) were incorporated.
- the resulting mixture was thoroughly stirred and then bottled in the usual way.
- the air-containing product obtained by the conventionally produced process shows a milky appearance.
- the density was 0.927 g / cm 3 .
- the density was measured with a pycnometer from Erichsen (model 290). The method complies with the requirements of DIN 53217 (ISO 281 1-1) and the regulations cited therein. The measurement was carried out at a temperature of 23 ⁇ 0.5 ° C.
- a surfactant-containing composition was prepared according to the method of the invention. First, water was placed in a batch kettle. With stirring, NaOH (2.3% as), boric acid (1.2% as) and citric acid (2.4% as) were added. After being dissolved in the water, diethylenetriaminepenta (methylenephosphonic acid) was added in the form of the sodium salt (DTPMP " 7Na) (0.85% as). Subsequently, surfactants (nonionic surfactant (nonionic surfactant) having 12 to 18 carbon atoms and 7 mol EO / mol (2.4% as), linear
- the viscosity of the basic formulation was 750 mPa s at 20 ° C. The viscosity was determined using a Brookfield viscometer HATDV II with spindle 2 at 20 rpm at 20 ° C. b) Differentiation of the basic formula:
- Diameter of the main pipe was 65 mm.
- the flow rate was in the range of 0.5 to 1.9 m / s.
- the pressure in the line system was 0, 1 to 6 bar above normal pressure.
- the main stream which consists of the basic formula, was 82.7% of the final product.
- the following additives were metered via side streams (the figures here also refer to the amount contained in the final product, the end product corresponding to 100%):
- Brightener 0.35% solution in demineralized water (0.035% a.s.)
- Nonionic surfactant isotridecanol with 3 mol EO / mol (2% a.s.)
- the air-free product thus produced in the process according to the invention had a higher density of 1.062 g / cm 3 .
- the determination was, as stated above, also here in a
- composition 1 and 2b contained core-shell particles (microbeads), which clearly represented red dots in the composition. While the particles in the air-containing product (Example 1, prior art) swell up after a short time (since air attaches to them), these particles were in the air-free invention
- Composition (Example 2) evenly distributed in the product.
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- Engineering & Computer Science (AREA)
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- Oil, Petroleum & Natural Gas (AREA)
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- Organic Chemistry (AREA)
- Detergent Compositions (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102014225145.1A DE102014225145A1 (de) | 2014-12-08 | 2014-12-08 | Verfahren zur Herstellung flüssiger, Tensid-enthaltender Zusammensetzungen mit Fließgrenze |
| PCT/EP2015/078614 WO2016091733A1 (de) | 2014-12-08 | 2015-12-04 | VERFAHREN ZUR HERSTELLUNG FLÜSSIGER, TENSID-ENTHALTENDER ZUSAMMENSETZUNGEN MIT FLIEßGRENZE |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP3230430A1 true EP3230430A1 (de) | 2017-10-18 |
| EP3230430B1 EP3230430B1 (de) | 2019-02-27 |
Family
ID=54780335
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP15804529.4A Revoked EP3230430B1 (de) | 2014-12-08 | 2015-12-04 | Verfahren zur herstellung flüssiger, tensid-enthaltender zusammensetzungen mit fliessgrenze |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20170267954A1 (de) |
| EP (1) | EP3230430B1 (de) |
| DE (1) | DE102014225145A1 (de) |
| WO (1) | WO2016091733A1 (de) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102015212131A1 (de) * | 2015-06-30 | 2017-01-05 | Henkel Ag & Co. Kgaa | Verfahren zur Herstellung einer flüssigen, Tensid enthaltenden Zusammensetzung |
| DE102018222190A1 (de) * | 2018-12-18 | 2020-06-18 | Henkel Ag & Co. Kgaa | Verfahren zur Herstellung einer Partikel- und Tensid-haltigen Flüssigkeit |
| DE102019126124A1 (de) * | 2019-09-27 | 2021-04-01 | Henkel Ag & Co. Kgaa | Verfahren zur Herstellung Tensid enthaltender Zusammensetzungen in einem sequenziellen Verfahren |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6362156B1 (en) | 1998-12-16 | 2002-03-26 | Unilever Home & Personal Care, Usa, Division Of Conopco, Inc. | Pourable transparent/translucent liquid detergent composition with suspended particles |
| US6794347B2 (en) | 2002-09-20 | 2004-09-21 | Unilever Home & Personal Care Usa A Division Of Conopco, Inc. | Process of making gel detergent compositions |
| DE10316001A1 (de) | 2003-04-07 | 2004-10-21 | Goldschmidt Ag | Wässrige Formulierungen enthaltend Kombinationen aus anionischen und kationischen Tensiden zur Erzeugung einer Fließgrenze |
| DE102005018243A1 (de) * | 2005-04-19 | 2006-10-26 | Henkel Kgaa | Verfahren zur Erzeugung flüssiger Zubereitungen mit Festkörpergehalt |
| MX2012004761A (es) | 2009-11-04 | 2012-05-23 | Colgate Palmolive Co | Proceso para producir un sistema de suspension estable. |
| EP2551337A1 (de) * | 2011-07-27 | 2013-01-30 | The Procter & Gamble Company | Verfahren zur Herstellung einer rheologiemodifikatorhaltigen Zusammensetzung |
| KR102017917B1 (ko) | 2011-11-02 | 2019-09-03 | 헨켈 아게 운트 코. 카게아아 | 항복점 ii를 갖는 구조화 세제 또는 세정제 |
| EP2841550B1 (de) * | 2012-04-23 | 2016-01-20 | Unilever Plc. | Extern strukturierte wässrige isotrope flüssigwaschmittelzusammensetzungen |
| DE102012216399A1 (de) * | 2012-09-14 | 2014-05-15 | Henkel Ag & Co. Kgaa | Strukturiertes, wasserarmes, flüssiges Waschmittel mit Partikeln |
| DE102012222186A1 (de) * | 2012-12-04 | 2014-06-05 | Henkel Ag & Co. Kgaa | Strukturiertes Reinigungsmittel mit Fließgrenze |
-
2014
- 2014-12-08 DE DE102014225145.1A patent/DE102014225145A1/de not_active Withdrawn
-
2015
- 2015-12-04 EP EP15804529.4A patent/EP3230430B1/de not_active Revoked
- 2015-12-04 WO PCT/EP2015/078614 patent/WO2016091733A1/de not_active Ceased
-
2017
- 2017-06-07 US US15/616,407 patent/US20170267954A1/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| WO2016091733A1 (de) | 2016-06-16 |
| DE102014225145A1 (de) | 2016-06-09 |
| US20170267954A1 (en) | 2017-09-21 |
| EP3230430B1 (de) | 2019-02-27 |
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