Detergent preparation with improved properties

Abstract

The invention relates to a detergent preparation containing, with respect to the total weight thereof, a) 12 to 45 wt.% of an anionic surfactant; b) 2 to 15 wt.% of a fatty acid; c1) 12 to 36 wt.% of a non-ionic surfactant from the group of linear or branched fatty alcohols with a degree of alkoxylation of 4 to 10; c2) 0.001 to 1 wt.% of a non-anionic surfactant from the group of fatty alcohols and glycerin fatty acid ester with a degree of alkoxylation of 20 to 60; d) 5 to 25 wt.% of an organic solvent; e) 0.3 to 8 wt.% of a salt of a bivalent cation; f) 0.01 to 1 wt.% of fragrance capsules; and g) less than 20 wt.% of water. The invention also relates to a method for washing textiles using the aforementioned detergent preparation.

Description

[0001] DETERGENT PREPARATION WITH IMPROVED PROPERTIES

[0002] The present invention relates to a detergent preparation and a method for washing textiles using this detergent preparation. In particular, this application relates to a detergent preparation with improved optical and olfactory properties based on a specific combination of surfactants, fatty acids, salts, and fragrance capsules.

[0003] The packaging and distribution of detergents and laundry detergents are constantly evolving. For some time now, a key focus has been on convenient dosing of detergents and laundry detergents for consumers and simplifying the steps required for washing or cleaning. One solution is pre-portioned detergents or laundry detergents, for example, foil pouches with one or more compartments for solid or liquid detergents or laundry detergents. From a technical perspective, a key focus is on the development and production of liquid detergents suitable for packaging in water-soluble foil pouches.

[0004] The commercial success of a detergent composition is determined by its ability to attract consumer interest and meet consumer expectations.

[0005] A key means of communicating product quality and product promise is the appearance of the serving unit, including the shape and color. This is especially true for detergent formulations in transparent packaging that reveal the detergents inside. Examples of such transparent packaging include transparent plastic bottles or water-soluble foil bags.

[0006] White is particularly suitable for communicating the washing and cleaning performance of detergent formulations. While colored, i.e., non-white, liquid detergents can be easily obtained by adding appropriate dyes, the provision of white liquid detergents is more challenging because the opacifiers previously used in their production are increasingly viewed critically from an ecological perspective. Against this background, the provision of an ecologically acceptable opacifier is a relevant development goal in the field of liquid detergents and laundry detergents.

[0007] In the case of detergent formulations, another means of communicating product quality and product promise is the inherent product fragrance and the fabric fragrance achieved through the detergent formulation. The quality of the fragrance includes not only the actual fragrance note, but also the fragrance intensity and duration.

[0008] One way to prolong the fragrance impression of a detergent composition is to use encapsulated fragrances, which release their contained fragrance during or after the laundry cycle, depending on their fracture hardness. When incorporated into a flowable detergent formulation, these fragrance capsules accumulate at the bottom or on the surface of the detergent formulation, depending on their density. This inhomogeneous distribution of the fragrance capsules, which is detrimental to the product's aesthetics, must be avoided.

[0009] Against the background of the technical background described above, the application was based on the task of providing visually appealing, flowable detergent compositions which are suitable for packaging in transparent outer packaging and are characterized by a long-lasting fragrance effect.

[0010] To achieve this object, a detergent preparation is suitable, comprising, based on its total weight, a) 12 to 45% by weight of anionic surfactant; b) 2 to 15% by weight of fatty acid; c1) 12 to 36% by weight of non-ionic surfactant from the group of linear or branched fatty alcohols with a degree of alkoxylation of 4 to 10; c2) 0.00001 to 1% by weight of non-ionic surfactant from the group of fatty alcohols and glycerol fatty acid esters with a degree of alkoxylation of 20 to 60; d) 5 to 25% by weight of organic solvent; e) 0.3 to 8% by weight of salt of a divalent cation; f) 0.01 to 1% by weight of fragrance capsules; g) less than 20% by weight of water.

[0011] The detergent preparation is preferably free-flowing under standard conditions (20°C, 1013 mbar). Preferred detergent preparations have a viscosity (21°C, Brookfield Viscometer Type DV-II. Pro, spindle no. 2, 20 rpm) above 400 mPas, preferably above 1000 mPas.

[0012] Surprisingly, it has been found that by combining the specific surfactant and fatty acid system with the salt of a divalent cation, the storage stability of the detergent preparation, in particular the stability of the fragrance capsules contained in this detergent preparation against sedimentation or floating, can be improved.

[0013] A first essential component of the surfactant system is 12 to 45 wt.% anionic surfactant, with preferred detergent preparations containing, based on their total weight, 20 to 40 wt.%, preferably 25 to 33 wt.% anionic surfactant.

[0014] 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 comprising C8-C11 alkylbenzenesulfonates and fatty alcohol ether sulfates as anionic surfactant exhibit particularly good dispersing properties. Suitable sulfonate-type surfactants are preferably C8-C11 alkylbenzenesulfonates, olefinsulfonates, i.e., mixtures of 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.Also suitable are Ci2-Ci8-alkanesulfonates and the esters of α-sulfofatty acids (estersulfonates), for example the α-sulfonated methyl esters of hydrogenated coconut, palm kernel or tallow fatty acids.

[0015] It is particularly preferred if the composition contains at least one anionic

[0016] Surfactant of formula (I) is contained,

[0017] (l) in which R' and R" are independently H or alkyl and together contain 8 to 18, preferably 9 to 15 and in particular 9 to 13 C atoms and Y + a monovalent cation or the nth part of an n-valent cation (in particular monoethanolamine).

[0018] The group of alkyl ether sulfates includes fatty alcohol ether sulfates, for example the sulfuric acid monoesters of straight-chain or branched C7-C2i alcohols ethoxylated with 1 to 6 mol of ethylene oxide, such as 2-methyl-branched C9-11 alcohols with an average of 3.5 mol of ethylene oxide (EO) or C12-18 fatty alcohols with 1 to 4 EO. Alkyl ether sulfates with the formula (II) are preferred.

[0019] R 1 -O-(AO) n -SO3- X + (II).

[0020] In this formula (II) R 1 represents a linear or branched, substituted or unsubstituted alkyl radical, preferably a linear, unsubstituted alkyl radical, particularly preferably a fatty alcohol radical. Preferred radicals R 1of formula (II) are selected from decyl, undecyl, dodecyl, tridecyl, tetradecyl, pentadecyl, hexadecyl, heptadecyl, octadecyl, nonadecyl, eicosyl radicals and mixtures thereof, with the representatives having an even number of carbon atoms being preferred. Particularly preferred radicals R 1 of formula (II) are derived from fatty alcohols with 12 to 18 C atoms, for example from coconut fatty alcohol, tallow fatty alcohol, lauryl, myristyl, cetyl or stearyl alcohol or from oxo alcohols with 10 to 20 C atoms.

[0021] In formula (II), AO represents an ethylene oxide (EO) or propylene oxide (PO) group, preferably an ethylene oxide group. The index n in formula (I) is an integer from 1 to 50, preferably from 1 to 20, and in particular from 2 to 10. n is most preferably 2, 3, 4, 5, 6, 7, or 8. X is a monovalent cation or the nth part of an n-valent cation, preferred being the alkali metal ions, and among these, Na + or K+ , where Na + is highly preferred. Further cations X+ can be selected from NHT, % Zn 2+ ,% Mg 2+ ,% Ca 2+ ,% Mn 2+ , and mixtures thereof as well as primary and secondary amines, in particular monoethanolamine.

[0022] Particularly preferred compositions contain an alkyl ether sulfate selected from fatty alcohol ether sulfates of the formula (III) where k = 1 from 1 to 19, n = 2, 3, 4, 5, 6, 7 or 8. Very particularly preferred representatives are Na fatty alcohol ether sulfates with 12 to 18 C atoms and 2 EO (k = 1 from 1 to 13, n = 2 in formula III). The stated degree of ethoxylation represents a statistical mean, which can be a whole or fractional number for a specific product. The stated degrees of alkoxylation represent statistical mean, which can be a whole or fractional number for a specific product. Preferred alkoxylates / ethoxylates have a narrow homolog distribution (narrow range ethoxylates, NRE).

[0023] In summary, preferred detergent preparations contain anionic surfactant selected from the group of Cs-18-alkylbenzenesulfonates, Cs-18-olefinsulfonates, C12-18-alkanesulfonates, Cs-18-estersulfonates, Cs-18-alkylsulfates, Cs-18-alkenylsulfates, fatty alcohol ether sulfates, in particular from the group of Cs-18-alkylbenzenesulfonates and fatty alcohol ether sulfates, very particularly preferably from the group of Cs-18-alkylbenzenesulfonates.

[0024] In particularly preferred detergent preparations, the weight fraction of anionic surfactants from the group of Cs-is-alkylbenzenesulfonates is 12 to 45 wt.%, preferably 20 to 40 wt.%, and in particular 25 to 33 wt.%.

[0025] The use of anionic surfactants from the group of alkanolamine Cs-is-alkylbenzenesulfonates has proven to be particularly advantageous for the storage stability of the detergent preparation.

[0026] In preferred detergent preparations, the anionic surfactant is selected from the group of alkanolamine Cs-is-alkylbenzenesulfonates with alkanolamine from the group monoethanolamine, monoisopropanolamine, diisopropanolamine, preferably from the group monoethanolamine.

[0027] In very particularly preferred detergent preparations, the weight fraction of anionic surfactants from the group of monoethanolamine Cs-is-alkylbenzenesulfonates is 12 to 45 wt.%, preferably 20 to 40 wt.%, and in particular 25 to 33 wt.%.

[0028] The use of fatty acids has proven essential for storage stability. Preferred detergent preparations therefore contain, based on their total weight, 4 to 12% by weight, preferably 6 to 10% by weight, of fatty acid. Particularly preferred fatty acids are selected from the group of C12-18 fatty acids, preferably from the group of caprylic acid, capric acid, lauric acid, myristic acid, palmitic acid, stearic acid, oleic acid, linoleic acid, and mixtures thereof. The fatty acids are not classified as anionic surfactants in the context of this application.

[0029] Other essential components of the surfactant system are the non-ionic surfactants c1) and c2).

[0030] Preferred detergent preparations contain, based on their total weight, 15 to 33% by weight, preferably 18 to 30% by weight of non-ionic surfactant c1).

[0031] Particular preference is given to the use of nonionic surfactant c1) from the group of ethoxylated primary Cs-18 alcohols, preferably ethoxylated primary Cs-18 alcohols with a degree of alkoxylation of 4 to 10, particularly preferably Cs-12-14 alcohols with 4 EO or 7 EO, Cs-n alcohols with 7 EO, Cs-alcohols with 5 EO, 7 EO or 8 EO, Cs-13-15 oxo alcohols with 7 EO, Cs-alcohols with 5 EO or 7 EO, in particular Cs-12-18 fatty alcohols with 7 EO or Cs-13-15 oxo alcohols with 7 EO.

[0032] With regard to the rheological properties of the detergent preparation, its processability and cleaning effect, it has proven advantageous to use anionic surfactant a) and nonionic surfactant c1) in a weight ratio of 3:1 to 1:2, preferably of 2:1 to 1:1.5 and in particular of 1.4:1 to 1:1.

[0033] To improve storage stability, the detergent preparations contain, based on their total weight, 0.00001 to 1 wt.% of non-ionic surfactant c2) from the group of fatty alcohols and glycerol fatty acid esters with a degree of alkoxylation of 20 to 60. With regard to the technical effect, preference is given to using 0.0001 to 0.5 wt.%, particularly preferably 0.0005 to 0.3 wt.% of non-ionic surfactant c2).

[0034] Due to their dispersion-stabilizing effect, preferred non-ionic surfactants c2) have an HLB value >12, preferably >14.

[0035] The use of non-ionic surfactant c2) from the following groups has proven particularly effective:

[0036] Fatty alcohols with a degree of alkoxylation of 20 to 60, preferably 30 to 60, in particular from the group of compounds with the INCI name Steareth-30, Ceteareth-30, Oleth-30 and Ceteareth-50;

[0037] Glycerol fatty acid esters with a degree of alkoxylation of 20 to 60, preferably 30 to 60, in particular from the group of compounds with the INCI name PEG-40 Hydrogenated Castor Oil and PEG-60 Hydrogenated Castor Oil, in particular PEG-40 Hydrogenated Castor Oil.

[0038] By adding another cosurfactant, both the optical properties and the rheological properties of the detergent preparation can be further enhanced. Preferred detergent preparations therefore further contain, based on their total weight, c3) 0.5 to 5 wt. % of a cosurfactant selected from the group of alkoxylated Cs-Cs fatty alcohols with a degree of alkoxylation <3, aliphatic Cs-Cs alcohols, aromatic Cs-Cs alcohols, aliphatic Cs-Cs dialcohols, monoglycerides of Cs-Cs fatty acids, monoglycerol ethers of Cs-Cs fatty alcohols, and mixtures, preferably from the group of alkoxylated Cs-Cs fatty alcohols with a degree of alkoxylation <3.

[0039] As a fifth essential component, the detergent preparation contains an organic solvent. The proportion of the organic solvent in the total weight of the detergent preparation is preferably 7 to 20 wt.%, preferably 10 to 18 wt.%.

[0040] Preferred organic solvents are selected from the group ethanol, n-propanol, i-propanol, butanols, glycol, propanediol, butanediol, methylpropanediol, glycerol, 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 their mixtures.

[0041] The detergent preparation is preferably a low-water mixture. Preference is given to detergent preparations that contain less than 18% by weight, preferably less than 15% by weight, of water based on their total weight.

[0042] Essential for the development of the desired optical and rheological properties of the detergent preparation is the addition of 0.3 to 8 wt.%, preferably 0.4 to 6 wt.%, and in particular 0.5 to 4 wt.% of salt of a divalent cation (in each case based on the total weight of the detergent preparation).

[0043] In particular, the use of salt of divalent cations is preferred from the group of divalent metallic cations, preferably magnesium and calcium salts, preferably from the group magnesium chloride, magnesium sulfate, calcium chloride and calcium sulfate, particularly preferably from the group magnesium chloride and calcium chloride, in particular calcium chloride.

[0044] Essential for long-lasting fragrance release is the addition of fragrance capsules in proportions of 0.01 to 1% by weight. The detergent preparations preferably contain 0.01 to 0.7% by weight, or 0.02 to 0.5% by weight, of fragrance capsules based on their total weight.

[0045] Fragrance capsules are typically characterized by a fragrance-containing core and a layer or shell surrounding this core. The capsules familiar to those skilled in the art can be used as fragrance capsules. The preferred group of fragrance capsules can be divided into two groups:

[0046] Fragrance capsules are selected from the group of melamine-urea-formaldehyde-containing fragrance capsules, melamine-formaldehyde-containing fragrance capsules, urea-formaldehyde-containing fragrance capsules;

[0047] Biopolymer-containing fragrance capsules, in particular from the group of protein-containing fragrance capsules and polysaccharide-containing fragrance capsules, in particular gelatin-containing fragrance capsules, chitosan-containing fragrance capsules, starch-containing fragrance capsules and alginate-containing fragrance capsules.

[0048] In a particularly preferred embodiment, the fragrance capsules comprise a core material and a barrier layer surrounding the core material as well as a stability layer arranged on the outer surface of the barrier layer, wherein the stability layer comprises at least one biopolymer.

[0049] The detergent preparation is preferably free of organic opacifiers. "Free from," as used in this context, means that the corresponding component is present in the preparation in an amount of < 1 wt.%, preferably < 0.1 wt.%, more preferably < 0.01 wt.%. In particular, such a component is then not intentionally added. The liquid surfactant-containing detergent preferably contains, in particular, no styrene-acrylate copolymers (INC I: styrene / acrylates copolymer).

[0050] The detergent preparation may be free of enzyme preparations. These components are not included, in particular, because they can adversely affect the turbidity and thus the appearance of the formulation. For example, detergent preparations containing less than 2 wt.%, preferably less than 1 wt.%, particularly preferably less than 0.1 wt.%, of enzyme preparation based on their total weight, and in particular no enzyme preparation, are preferred.

[0051] The detergent preparation is further preferably free of phosphonates. "Free of," as used in this context, means that the corresponding component is present in the preparation in an amount of less than 2 wt.%, preferably less than 1 wt.%, and particularly preferably less than 0.1 wt.%. In particular, such a component is then not intentionally added. The liquid surfactant-containing detergent preferably contains no phosphonate.

[0052] In an alternative embodiment, the detergent preparation contains at least one optical brightener, preferably a stilbene-type optical brightener. This is present in the detergent preparation, based on its total weight, in an amount above 0 wt.%, but preferably in an amount below 1 wt.%, particularly preferably in an amount below 0.6 wt.%. Stilbene-type brighteners for use in detergent preparations are preferably selected from the group of triazinyl derivatives of 4,4'-diamino-2,2'-stilbenesulfonic acid, in particular DAS1 (disodium 4,4-bis[(4-anilino-6-morpholino-1,3,5-triazin-2-yl)amino]stilbene-2,2-disulfonate) and DSBP (disodium 4,4-bis(2-sulfostyryl)biphenyl).

[0053] Alternatively or in addition to the optical brightener, the detergent preparation may contain at least one red, blue, or violet dye. This dye is present in the detergent preparation, based on its total weight, in an amount above 0 wt.%, but preferably in an amount below 0.1 wt.%, particularly preferably below 0.02 wt.%, for example, between 0.001 and 0.01 wt.%. Such a dye serves, for example, the purpose of masking a possible yellowish tint in the preparation.

[0054] Suitable dyes include dyes, dye-clay conjugates, pigments, and photobleaching agents. Suitable dyes include low-molecular-weight dyes and polymer dyes.

[0055] In a preferred embodiment, 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.Beispielhafte niedermolekulare Farbstoffe sind 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 und 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 und Mischungen davon.

[0056] In an alternative embodiment, the dye is selected from the group of polymeric dyes. Suitable polymeric dyes include conjugated chromogens (dye-polymer conjugates) and polymers in which chromogens are polymerized into their backbone. These polymeric dyes include, for example, dyes commercially available under the name Liquitint®, such as Liquitint® Violet CT, CMC-conjugated Cl Reactive Blue 19 with the product name AZO-CM-Cellulose, alkoxylated polymeric triphenylmethane dyes, or alkoxylated polymeric thiphene dyes.

[0057] In another alternative embodiment, a dye-clay conjugate is used as the dye. These dyes include, among others, conjugates of smectite clay, montmorillonite clay, hectorite clay, or saponite clay with a cationic / basic dye from the group consisting of Cl Basic Yellow 1 to 108, Cl Basic Orange 1 to 69, Cl Basic Red 1 to 118, Cl Basic Violet 1 to 51, Cl Basic Blue 1 to 164, Cl Basic Green 1 to 14, Cl Basic Brown 1 to 23, and Cl Basic Black 1 to 11. In particular, this group of dyes includes Montmorillonite Basic Blue B7 Cl 42595 conjugate, Montmorillonite Basic Blue B9 Cl 52015 conjugate, Montmorillonite Basic Violet V3 Cl 42555 conjugate, Montmorillonite Basic Green G1 Cl 42040 conjugate, Montmorillonite Basic Red R1 Cl 45160 conjugate, Montmorillonite Cl Basic Black 2 conjugate, Hectorit Basic Blue B7 Cl 42595 conjugate, Hectorit Basic Blue B9 Cl 52015 conjugate, Hectorit Basic Violet V3 Cl42555 conjugate, Hectorit Basic Green G1 Cl 42040 conjugate, Hectorit Basic Red R1 Cl 45160 conjugate, Hectorit Cl Basic Black 2 conjugate, Saponit Basic Blue B7 Cl 42595 conjugate, Saponit Basic Blue B9 Cl 52015 conjugate, Saponit Basic Violet V3 Cl 42555 conjugate, Saponit Basic Green G1 Cl 42040 conjugate, Saponit Basic Red R1 Cl 45160 conjugate, Saponit Cl Basic Black 2 conjugate and mixtures thereof.

[0058] Another group of alternative dyes are pigments, in particular pigments selected from the group flavanthrone, indanthrone, chlorinated indanthrone with 1 to 4 chlorine atoms, pyranthrone, dichlorpyranthrone, monobromodichloropyranthrone, dibromodichloropyranthrone, tetrabromopyranthrone, ultramarine blue (Cl Pigment Blue 29) and ultramarine violet (Cl Pigment Violet 15).

[0059] The use of dyes from the group of photobleaching agents, especially photobleaching agents from the group of phthalocyaninesulfonates, has proven particularly advantageous from a technical perspective. Suitable photobleaching agents include aluminum phthalocyaninesulfonate or zinc phthalocyaninesulfonate, or mixtures thereof, as commercially available under the name Tinolux®.

[0060] The composition of some preferred detergent preparations can be found in the following tables (data in wt. % based on the total weight of the preparation unless otherwise stated). The detergent preparations are free-flowing under standard conditions (20°C, 1013 mbar), preferably have a turbidity (HACH Turbidimeter 2100Q, 20°C, 10 ml cuvette) above 60 NTU, preferably above 100 NTU, and especially above 400 NTU, and are packaged in the form of detergent portion units in which the detergent preparation is completely enclosed by a water-soluble film.

[0061] 1) non-ionic surfactant from the group of linear or branched fatty alcohols with a degree of alkoxylation of 4 to 10

[0062] 2)non-ionic surfactant from the group of fatty alcohols and glycerol fatty acid esters with a degree of alkoxylation of 20 to 60

[0063] 3) Fatty alcohol with an alkoxylation degree of 20 to 60, preferably 30 to 60, in particular from the group of compounds with the INCI name Steareth-30, Ceteareth-30, Oleth-30 and Ceteareth-50

[0064] 4) Glycerol fatty acid esters with a degree of alkoxylation of 20 to 60, preferably 30 to 60, in particular from the group of compounds with the INCI name PEG-40 Hydrogenated Castor Oil and PEG-60 Hydrogenated Castor Oil, in particular PEG-40 Hydrogenated Castor Oil

[0065] 5)Biopolymer-containing fragrance capsules, in particular from the group of protein-containing fragrance capsules and polysaccharide-containing fragrance capsules, in particular gelatin-containing fragrance capsules, chitosan-containing fragrance capsules, starch-containing fragrance capsules and alginate-containing fragrance capsules

[0066] 6) Co-surfactant from the group of alkoxylated Cs-Cs fatty alcohols with a degree of alkoxylation < 3, aliphatic Cs-Ci4 alcohols, aromatic Cs-Ci4 alcohols, aliphatic C6-Ci2 dialcohols, monoglycerides of Cs-Ci8 fatty acids, monoglycerol ethers of Cs-Cis fatty alcohols and mixtures, preferably from the group of alkoxylated Cs-Cis fatty alcohols with a degree of alkoxylation < 3

[0067] As described above, the combination of active ingredients described above results in an advantageous product appearance while simultaneously providing a lasting fragrance effect and high physical stability of the dispersed fragrance capsules.

[0068] The detergent preparations preferably have a cloudy white appearance. The nephelometry turbidity unit (NTU) is often used as a measure of transparency. It is a unit used, for example, in water treatment for turbidity measurements, e.g., in liquids. It is the unit of turbidity measured with a calibrated nephelometer. High NTU values ​​are measured for cloudy compositions, whereas low values ​​are determined for clear compositions. In absolute terms, the detergent preparation preferably has a turbidity (HACH Turbidimeter 2100Q, 20°C, 10 ml cuvette) above 60 NTU, preferably above 100 NTU, and especially above 400 NTU.

[0069] The HACH Turbidimeter 2100Q from the Hach Company, Loveland, Colorado (USA), is used for this purpose, using 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 the Hach Company. The measurement is carried out in a 10 ml measuring cuvette with a cap filled with the composition to be analyzed, and the measurement is carried out at 20 °C.

[0070] The detergent preparation is preferably in the form of a structured system. The main types of structured systems 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 bilayers 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 detergent preparations contain lamellar spherulites, preferably with a maximum diameter of 10 to 100 μm, particularly preferably with a maximum diameter of 25 to 50 μm.

[0071] The detergent preparation preferably has a yield point (TA Instruments rotational rheometer AR 2000, 20°C, cone plate with 40 mm diameter, 2° cone angle) above 0.1 Pa, preferably above 0.3 Pa.

[0072] The visual advantages of the detergent preparation are particularly evident in packaging materials that are transparent and allow a direct view of the detergent preparation. In addition to transparent plastic bottles, transparent bags, especially water-soluble transparent bags, are therefore preferred for assembly and packaging.

[0073] A further preferred subject matter of this application is therefore a detergent portion unit comprising a) at least one first receiving chamber, b) at least one water-soluble film surrounding this first receiving chamber and c) at least one detergent preparation according to one of the previous points located in the first receiving chamber.

[0074] The water-soluble film in which the detergent preparation is packaged can comprise one or more structurally different water-soluble polymers. Particularly suitable water-soluble polymers are polymers from the group of (optionally acetalized) polyvinyl alcohols (PVAL) and their copolymers.

[0075] Water-soluble films are preferably based on a polyvinyl alcohol or a polyvinyl alcohol copolymer whose molecular weight is in the range of 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 especially from 40,000 to 80,000 gmol -1 lies.

[0076] The production of polyvinyl alcohol and polyvinyl alcohol copolymers generally involves 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 especially 82 to 88 mol%.

[0077] Preferred polyvinyl alcohol copolymers comprise, in addition to vinyl alcohol, an ethylenically unsaturated carboxylic acid, its salt, or its ester. Particularly preferably, such polyvinyl alcohol copolymers contain, in addition to vinyl alcohol, 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. Other suitable monomers include ethylenically unsaturated dicarboxylic acids, for example, itaconic acid, maleic acid, fumaric acid, and mixtures thereof.

[0078] Suitable water-soluble films for use are marketed by MonoSol LLC, for example, under the designations M8630, M8720, M8310, C8400, or M8900. Also suitable are films with the designations Solublon® PT, Solublon® GA, Solublon® KC, or Solublon® KL from Aicello Chemical Europe GmbH, or the VF-HP films from Kuraray.

[0079] The water-soluble films may contain additional active ingredients or fillers as well as plasticizers and / or solvents, especially water.

[0080] The group of other active ingredients includes, for example, materials that protect the ingredients of the preparation enclosed in the film material from decomposition or deactivation by light exposure. Antioxidants, UV absorbers, and fluorescent dyes have proven particularly suitable for this purpose.

[0081] Plasticizers that can be used include, for example, glycerin, ethylene glycol, diethylene glycol, propanediol, 2-methyl-1,3-propanediol, sorbitol or mixtures thereof.

[0082] To reduce its friction coefficient, the surface of the water-soluble film of the detergent dispenser can optionally be dusted with fine powder. Sodium aluminosilicate, silicon dioxide, talc, and amylose are examples of suitable powdering agents.

[0083] Preferred water-soluble films are suitable for processing in a thermoforming apparatus.

[0084] The volume of the detergent portion unit is preferably from 12 to 22 ml, in particular from 12 to 20 ml. Preferred detergent portion units have one to four receiving chambers, preferably three or four receiving chambers. In detergent portion units with two or more receiving chambers, preferably at least one of the receiving chambers, preferably the majority of the receiving chambers, is transparent.

[0085] The following embodiments are particularly preferred:

[0086] Detergent portion unit at least two receiving chambers which are surrounded by a water-soluble film, wherein one receiving chamber is filled with the detergent preparation according to the invention and the further receiving chamber is filled with a second detergent preparation different from the detergent preparation according to the invention;

[0087] Detergent portion unit at least three receiving chambers which are surrounded by a water-soluble film, wherein one receiving chamber is filled with the detergent preparation according to the invention and the other two receiving chambers are filled separately with a second and a third detergent preparation which is different from one another and from the detergent preparation according to the invention;

[0088] Detergent portion unit at least four receiving chambers which are surrounded by a water-soluble film, wherein one receiving chamber is filled with the detergent preparation according to the invention and the other three receiving chambers are filled separately from one another with a second and a third and a fourth detergent preparation which is different from one another and from the detergent preparation according to the invention.

[0089] As stated above, the detergent preparation is particularly suitable for cleaning and sustainably scenting textiles in machine textile cleaning. A further subject matter of this application is therefore a method for textile cleaning in which a flowable detergent preparation according to the invention or a detergent portion unit according to the invention is introduced into the wash liquor of a textile washing machine.

[0090] The mechanical textile cleaning process is preferably carried out at temperatures of 20°C to 60°C, preferably 30°C to 45°C. Preferred textile cleaning processes are used for cleaning cotton fabrics.

[0091] This registration provides, among other things, the following items:

[0092] 1. A detergent preparation containing, based on its total weight, a) 12 to 45% by weight of anionic surfactant; b) 2 to 15% by weight of fatty acid; c1) 12 to 36% by weight of non-ionic surfactant from the group of linear or branched fatty alcohols with a degree of alkoxylation of 4 to 10; c2) 0.00001 to 1% by weight of non-ionic surfactant from the group of fatty alcohols and glycerol fatty acid esters with a degree of alkoxylation of 20 to 60; d) 5 to 25% by weight of organic solvent; e) 0.3 to 8% by weight of salt of a divalent cation; f) 0.01 to 1% by weight of fragrance capsules; g) less than 20% by weight of water.

[0093] 2. Detergent preparation according to item 1, containing, based on its total weight, 20 to 40 wt.%, preferably 25 to 33 wt.% anionic surfactant.

[0094] 3. Detergent preparation according to one of the preceding points, wherein the anionic surfactant is selected from the group of Cs-is-alkylbenzenesulfonates, Cs-is-olefinsulfonates, C12-18 alkanesulfonates, Cs-is-estersulfonates, Cs-is-alkyl sulfates, Cs-is-alkenyl sulfates, fatty alcohol ether sulfates, in particular from the group of Cs-is-alkylbenzenesulfonates and fatty alcohol ether sulfates, preferably from the group of Cs-is-alkylbenzenesulfonates.

[0095] 4. Detergent preparation according to one of the preceding points, wherein the anionic surfactant is selected from the group of alkanolamine Cs-is-alkylbenzenesulfonates.

[0096] 5. Detergent preparation according to point 4, wherein the anionic surfactant is selected from the group of alkanolamine Cs-is-alkylbenzenesulfonates with alkanolamine from the group monoethanolamine, monoisopropanolamine, diisopropanolamine, preferably from the group monoethanolamine.

[0097] 6. Detergent preparation according to one of the preceding points, containing, based on its total weight, 4 to 12 wt.%, preferably 6 to 10 wt.% fatty acid.

[0098] 7. Detergent preparation according to one of the preceding points, wherein the fatty acid is selected from the group of C12-18 fatty acids, preferably from the group caprylic acid, capric acid, lauric acid, myristic acid, palmitic acid, stearic acid, oleic acid, linoleic acid and mixtures thereof.

[0099] 8. Detergent preparation according to one of the preceding points, containing, based on its total weight, 15 to 33 wt.%, preferably 18 to 30 wt.% of non-ionic surfactant c1).

[0100] 9. Detergent preparation according to one of the preceding points, wherein the nonionic surfactant c1) is selected from the group of ethoxylated primary Cs-18 alcohols, preferably the ethoxylated primary Cs-18 alcohols with a degree of alkoxylation of 4 to 10, particularly preferably the Cs-12-14 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 Cs-oxo alcohols with 7 EO, the Cs-alcohols with 5 EO or 7 EO, in particular the Cs-fatty alcohols with 7 EO or the Cs-oxo alcohols with 7 EO. 10. Detergent preparation containing anionic surfactant a) and nonionic surfactant c1) 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.

[0101] 11 . Detergent preparation according to one of the preceding points, containing, based on its total weight, 0.0001 to 0.5 wt.%, preferably 0.0005 to 0.3 wt.% of non-ionic surfactant c2).

[0102] 12. Detergent preparation according to one of the preceding points, wherein the non-ionic surfactant c2) is selected from the group of non-ionic surfactants with an HLB value >12, preferably >14.

[0103] 13. Detergent preparation according to one of the preceding points, wherein the non-ionic surfactant c2) is selected from the group of fatty alcohols having a degree of alkoxylation of 20 to 60, preferably of 30 to 60, in particular from the group of compounds with the INC I designation Steareth-30, Ceteareth-30, Oleth-30 and Ceteareth-50.

[0104] 14. Detergent preparation according to one of the preceding points, wherein the non-ionic surfactant c2) is selected from the group of glycerol fatty acid esters with a degree of alkoxylation of 20 to 60, preferably of 30 to 60, in particular from the group of compounds with the INCI name PEG-40 Hydrogenated Castor Oil and PEG-60 Hydrogenated Castor Oil, in particular PEG-40 Hydrogenated Castor Oil.

[0105] 15. Detergent preparation according to one of the preceding points, wherein the detergent preparation, based on its total weight, further contains c3) 0.5 to 5 wt. % of a co-surfactant selected from the group of alkoxylated Cs-Cs fatty alcohols with a degree of alkoxylation < 3, aliphatic Ce-Ci4 alcohols, aromatic Ce-Ci4 alcohols, aliphatic Ce-Ci2 dialcohols, monoglycerides of Cs-Ci8 fatty acids, monoglycerol ethers of Cs-Cis fatty alcohols and mixtures, preferably from the group of alkoxylated Cs-Cis fatty alcohols with a degree of alkoxylation < 3.

[0106] 16. Detergent preparation according to one of the preceding points, containing, based on its total weight, 7 to 20 wt.%, preferably 10 to 18 wt.% of organic solvent.

[0107] 17. Detergent preparation according to one of the preceding points, wherein 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 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.

[0108] 18. Detergent preparation according to one of the preceding points, containing, based on its total weight, 0.4 to 6 wt.%, preferably 0.5 to 4 wt.% of salt of a divalent cation.

[0109] 19. Detergent preparation according to one of the preceding points, wherein the divalent salt is selected from the group of divalent metallic cations, preferably the magnesium and calcium salts, preferably from the group magnesium chloride, magnesium sulfate, calcium chloride and calcium sulfate, particularly preferably from the group magnesium chloride and calcium chloride, in particular calcium chloride.

[0110] 20. Detergent preparation according to one of the preceding points, containing, based on its total weight, 0.01 to 0.7 wt.%, preferably 0.02 to 0.5 wt.% of fragrance capsules.

[0111] 21. Detergent preparation according to one of the preceding points, wherein the fragrance capsules are selected from the group of melamine-urea-formaldehyde-containing fragrance capsules, melamine-formaldehyde-containing fragrance capsules, urea-formaldehyde-containing fragrance capsules.

[0112] 22. Detergent preparation according to one of the preceding points, wherein the fragrance capsules are selected from the group of biopolymer-containing fragrance capsules, in particular from the group of protein-containing fragrance capsules and polysaccharide-containing fragrance capsules, in particular gelatin-containing fragrance capsules, chitosan-containing fragrance capsules, starch-containing fragrance capsules and alginate-containing fragrance capsules.

[0113] 23. Detergent preparation according to one of the preceding points, wherein the fragrance capsules have a core material and a barrier layer surrounding the core material and a stability layer arranged on the outer surface of the barrier layer, and the stability layer comprises at least one biopolymer.

[0114] 24. Detergent preparation according to one of the preceding points, containing, based on its total weight, less than 18% by weight, preferably less than 15% by weight of water.

[0115] 25. Detergent preparation according to any one of the preceding points, wherein the detergent preparation contains no organic opacifiers, in particular no styrene-acrylate copolymer. 26. Detergent preparation according to any one of the preceding points, wherein the detergent preparation, based on its total weight, contains less than 2 wt.%, preferably less than 1 wt.%, particularly preferably less than 0.1 wt.%, and in particular no enzyme preparation.

[0116] 27. Detergent preparation according to one of the preceding points, wherein the detergent preparation contains, based on its total weight, less than 2 wt.%, preferably less than 1 wt.%, particularly preferably less than 0.1 wt.% and in particular no phosphonate.

[0117] 28. Detergent preparation according to one of the preceding points, wherein the detergent preparation contains, based on its total weight, an optical brightener, preferably an optical brightener of the stilbene type, in amounts below 1% by weight, preferably in amounts below 0.6% by weight.

[0118] 29. Detergent preparation according to item 28, wherein the optical brightener is selected from the group of triazinyl derivatives of 4,4'-diamino-2,2'-stilbenesulfonic acid, in particular DAS1 (disodium 4,4-bis[(4-anilino-6-morpholino-1,3,5-triazin-2-yl)amino]-stilbene-2,2-disulfonate) and DSBP (disodium 4,4-bis(2-sulfostyryl)-biphenyl).

[0119] 30. Detergent preparation according to one of the preceding points, wherein the detergent preparation contains, based on its total weight, a blue or violet dye in amounts below 0.1% by weight, preferably below 0.02% by weight.

[0120] 31. Detergent preparation according to one of the preceding points, wherein the flowable detergent preparation has a viscosity (21 °C, Brookfield viscometer type DV-II. Pro, spindle no. 2, 20 rpm) above 400 mPas, preferably above 1000 mPas.

[0121] 32. Detergent preparation according to one of the preceding points, wherein the flowable detergent preparation has a yield point (TA Instruments rotational rheometer AR 2000, 20°C, cone plate with 40 mm diameter, 2° cone angle) above 0.1 Pa, preferably above 0.3 Pa.

[0122] 33. Detergent preparation according to one of the preceding points, wherein the detergent preparation has a turbidity (HACH Turbidimeter 2100Q, 20°C, 10 ml cuvette) above 60 NTU, preferably above 100 NTU and in particular above 400 NTU.

[0123] 34. Detergent preparation according to one of the preceding points, wherein the detergent preparation contains lamellar spherulites, preferably with a maximum diameter of 10 to 100 pm, particularly preferably with a maximum diameter of 25 to 50 pm.

[0124] 35. Detergent portion unit, comprising a) at least one first receiving chamber, b) at least one water-soluble film surrounding said first receiving chamber and c) at least one detergent preparation according to one of the preceding points located in said first receiving chamber.

[0125] 36. Detergent portion unit according to item 35, wherein 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 flowable detergent preparation and the further receiving chamber is filled with a second colored detergent preparation different from the flowable detergent preparation.

[0126] 37. Detergent portion unit according to item 35, wherein 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 flowable detergent preparation and the other two receiving chambers are filled separately with a second and a third detergent preparation which is different from one another and from the flowable detergent preparation.

[0127] 38. Detergent portion unit according to item 35, wherein 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 flowable detergent preparation and the other three receiving chambers are filled separately from one another with a second and a third and a fourth colored detergent preparation which is different from one another and from the flowable detergent preparation.

[0128] 39. A process for textile cleaning, in which a flowable detergent preparation according to any one of items 1 to 34 or a detergent portion unit according to any one of items 35 to 38 is introduced into the wash liquor of a textile washing machine. Examples

[0129] The following detergent compositions containing fragrance capsules were tested for their storage stability. All detergent compositions exhibited a white turbidity.

[0130] Table 1 : Detergent compositions (wt.%)

[0131] The storage stability of the detergent compositions was tested by storing them at room temperature (20°C) for four weeks. The homogeneous distribution of the fragrance capsules in the detergent composition was evaluated (1: poor to 5: excellent).

[0132] Table 2: Storage stability

Claims

Patent claims:

1. A detergent preparation containing, based on its total weight, a) 12 to 45% by weight of anionic surfactant; b) 2 to 15% by weight of fatty acid; c1) 12 to 36% by weight of non-ionic surfactant from the group of linear or branched fatty alcohols with a degree of alkoxylation of 4 to 10; c2) 0.001 to 1% by weight of non-ionic surfactant from the group of fatty alcohols and glycerol fatty acid esters with a degree of alkoxylation of 20 to 60; d) 5 to 25% by weight of organic solvent; e) 0.3 to 8% by weight of salt of a divalent cation; f) 0.01 to 1% by weight of fragrance capsules; g) less than 20% by weight of water.

2. Detergent preparation according to claim 1, wherein the non-ionic surfactant c2) is selected from the group of non-ionic surfactants having an HLB value >12, preferably >14.

3. Detergent preparation according to one of the preceding claims, wherein the nonionic surfactant c2) is selected from the group of fatty alcohols having a degree of alkoxylation of 20 to 60, preferably of 30 to 60, in particular from the group of compounds with the INC I designation Steareth-30, Ceteareth-30, Oleth-30 and Ceteareth-50.

4. Detergent preparation according to one of the preceding claims, wherein the non-ionic surfactant c2) is selected from the group of glycerol fatty acid esters having a degree of alkoxylation of 20 to 60, preferably of 30 to 60, in particular from the group of compounds with the INCI name PEG-40 Hydrogenated Castor Oil and PEG-60 Hydrogenated Castor Oil, in particular PEG-40 Hydrogenated Castor Oil.

5. Detergent preparation according to one of the preceding claims, wherein the detergent preparation, based on its total weight, further contains c3) 0.5 to 5 wt. % of a co-surfactant selected from the group of alkoxylated Cs-Cs fatty alcohols with a degree of alkoxylation < 3, aliphatic Ce-Ci4 alcohols, aromatic Ce-Ci4 alcohols, aliphatic Ce-Ci2 dialcohols, monoglycerides of Cs-Ci8 fatty acids, monoglycerol ethers of Cs-Cis fatty alcohols and mixtures, preferably from the group of alkoxylated Cs-Cis fatty alcohols with a degree of alkoxylation < 3.

6. Detergent preparation according to one of the preceding claims, wherein the divalent salt is selected from the group of divalent metallic detergent preparations according to one of the preceding points, wherein cations, preferably the magnesium and calcium salts, are preferably selected from the group of magnesium chloride, magnesium sulfate, calcium chloride and Calcium sulfate, particularly preferably from the group magnesium chloride and calcium chloride, in particular calcium chloride.

7. Detergent preparation according to one of the preceding claims, wherein the fragrance capsules are selected from the group of melamine-urea-formaldehyde-containing fragrance capsules, melamine-formaldehyde-containing fragrance capsules, urea-formaldehyde-containing fragrance capsules, biopolymer-containing fragrance capsules, preferably from the group of protein-containing fragrance capsules and polysaccharide-containing fragrance capsules, in particular gelatin-containing fragrance capsules, chitosan-containing fragrance capsules, starch-containing fragrance capsules and alginate-containing fragrance capsules.

8. Flowable detergent preparation according to one of the preceding claims, wherein the detergent preparation has a turbidity (HACH Turbidimeter 2100Q, 20°C, 10 ml cuvette) above 60 NTU, preferably above 100 NTU and in particular above 400 NTU.

9. Detergent portion unit, comprising a) at least one first receiving chamber, b) at least one water-soluble film surrounding said first receiving chamber and c) at least one detergent preparation according to one of the preceding claims located in said first receiving chamber.

10. A method for textile cleaning, in which a flowable detergent preparation according to one of claims 1 to 8 or a detergent portion unit according to claim 9 is introduced into the wash liquor of a textile washing machine.

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