EP2895588A1

EP2895588A1 - Structured, low-water, liquid detergent having particles

Info

Publication number: EP2895588A1
Application number: EP13756451.4A
Authority: EP
Inventors: Frank Meier; Dirk Weinrich; Luca Bellomi; Sabine SCHÜMANN; Matthias Sunder; Thorsten Ott
Original assignee: Henkel AG and Co KGaA
Current assignee: Henkel AG and Co KGaA
Priority date: 2012-09-14
Filing date: 2013-08-29
Publication date: 2015-07-22
Anticipated expiration: 2033-08-29
Also published as: US20150184115A1; WO2014040865A1; DE102012216399A1; EP2895588B1

Abstract

The invention relates to a liquid detergent or cleaning agent, comprising a) 5 to 85 wt%, with respect to the entire detergent or cleaning agent, of surfactant, b) 0.1 to 10 wt%, with respect to the entire detergent or cleaning agent, of particles, c) 0.1 to 10 wt%, with respect to the entire detergent or cleaning agent, of pyrogenic silicon dioxide, and d) up to 15 wt%, with respect to the entire detergent or cleaning agent, of water. The liquid detergent or cleaning agent is clear, exhibits no creaming and/or sedimentation of the dispersed capsules, and can be part of water-soluble packagings.

Description

"Structured, low-water, liquid detergent with particles"

The invention relates to a liquid washing or cleaning agent comprising surfactant, dispersed particles and silica. The invention also relates to a water-soluble packaging comprising such a liquid detergent or cleaning agent.

Detergents or cleaners are now available to the consumer in a variety of forms. In addition to powders and granules, this offer includes, for example

Liquids, gels or sachets (tablets or filled bags).

In particular, portion packs containing liquid detergents or cleaning agents are becoming increasingly popular, fulfilling, on the one hand, the consumer's desire for simplified dosing and, on the other hand, more and more consumers prefering liquid detergents or cleaners.

When formulating liquid detergents or cleaners for packaging in water-soluble bags, particular care must be taken to ensure that the ingredients of the detergent or cleaning agent do not dissolve or dissolve the water-soluble envelope of the bag before they are used and thus lead to undesirable leaks.

An ingredient that can destroy the structural integrity of the water-soluble envelope of a bag is water. For this reason, liquid detergents or cleaners for packaging in water-soluble bags contain the lowest possible content of water.

In order to increase or prolong the scent impression on the washing or cleaning agents surfaces treated therewith, such as, for example, textiles, detergents or cleaners may contain perfume capsules. It is often problematic to suspend particles, such as perfume capsules, in liquids. In particular, when the solids differ in density from the liquid, they tend to sediment or float.

In order to achieve a homogeneous and stable distribution of the particles and thus to arrive at an aesthetically pleasing product, the detergents or cleaners contain a

Structuring agent. Suitable structuring agents are, for example, structuring gums, such as, for example, xanthan gum, guar gum, locust bean gum, gellan gum, wellan gum or carrageenan, or of polyacrylate thickener.

However, many structurants require water in order to develop their structuring properties in a formulation. This is due to the structuring of water-scarce washing or cleaning medium, as they are used in water-soluble packaging, contrary. Moreover, it is also not always possible to produce flow limits in systems rich in electrolyte and / or surfactants.

Accordingly, it was an object of the present invention to provide a low-water, liquid washing or cleaning agent with stable and homogeneously suspended particles, which is also suitable for packaging in a water-soluble casing.

This object is achieved by a liquid washing or cleaning agent comprising a) 5 to 85 wt .-%, based on the total detergent or cleaning agent, surfactant selected from the group consisting of nonionic surfactants, anionic surfactants, cationic surfactants, zwitterionic surfactants and mixtures thereof,

b) 0, 1 to 10 wt .-%, based on the total washing or cleaning agent, particles, c) 0, 1 to 10 wt .-%, based on the total washing or cleaning agent, fumed silica and

d) up to 15% by weight, based on the total washing or cleaning agent, of water.

It has surprisingly been found that the use of fumed silica leads to structured, low-water detergents or cleaning agents having dispersing properties in which particles can be dispersed stably and homogeneously. In addition, the resulting structured detergents or cleaners are clear and transparent.

In a preferred embodiment of the invention, the surfactant is selected from the group consisting of nonionic surfactants, anionic surfactants and mixtures thereof.

With regard to detergency, cleaning action and formability, it is advantageous to use nonionic surfactants, anionic surfactants or a mixture thereof in the low-water liquid detergent or cleaner.

It is particularly preferred that the fumed silica is surface-modified, in particular hydrophobically surface-modified. When using surface-modified, in particular hydrophobically surface-modified, fumed silica, storage-stable detergents with dispersing properties are obtained under a wide variety of climatic conditions.

A particularly good and stable structuring is when used with hexadecylsilane or

Dimethyldichlorosilane surface-modified fumed silica in the liquid detergents or cleaners obtained. Liquid detergents or cleaners containing

Dimethyldichlorosilane containing surface-modified fumed silica are particularly clear. Liquid detergents containing fumed silica surface-modified with hexadecylsilane have a yield point. The invention also relates to a water-soluble packaging containing a liquid washing or cleaning agent and a water-soluble coating, wherein the liquid detergent or cleaning agent

a) from 5 to 85% by weight, based on the total washing or cleaning agent, of surfactant selected from the group consisting of nonionic surfactants, anionic surfactants, cationic surfactants, zwitterionic surfactants and mixtures thereof,

d) up to 15 wt .-%, based on the total washing or cleaning agent, water.

It is preferred that the water-soluble coating be polyvinyl alcohol or a

Contains polyvinyl alcohol copolymer. Water-soluble coatings containing polyvinyl alcohol or a polyvinyl alcohol copolymer have a good stability with a sufficiently high water solubility, in particular cold water solubility on.

Another object of the invention is the use of fumed silica in a liquid detergent or cleaning agent containing surfactant, particles and up to 15 wt .-%, based on the total detergent or cleaning agent, water, for the stable dispersion of the particles in the liquid washing or cleaning agent.

In the following, the invention will be explained in more detail, inter alia, by way of examples.

The liquid washing or cleaning agent necessarily contains a surfactant, particles, fumed silica and up to 15 wt .-% water.

The liquid detergents or cleaners contain surfactant (s), these being selected from anionic, nonionic, cationic and / or zwitterionic surfactants. From an application point of view, preference is given to mixtures of anionic and nonionic surfactants. The total surfactant content of the liquid washing or cleaning agent is up to 85 wt .-%, is preferably below 75 wt .-% and particularly preferably below 70 wt .-%, based on the total liquid detergent or cleaning agent.

Preferably, the liquid detergent or cleaning agent may contain nonionic surfactants. The content of nonionic surfactant is preferably 5 to 40 wt .-% and more preferably 10 to 35 wt .-%, each based on the total liquid detergent or cleaning agent. Suitable nonionic surfactants include alkoxylated fatty alcohols, alkoxylated oxo 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.

A particularly preferred nonionic surfactant which is in the liquid washing or

Detergent can be used is an alkoxylated oxo-alcohol. Oxo alcohols are primary, partially branched higher alcohols, which are obtained in the oxo synthesis. In this case, oxo-aldehydes or their primary Aldokondensationsprodukte by catalytic

Hydrogenation converted to the corresponding oxo alcohols.

Preference is given to a Ci ₃ .i ₅ -oxo-alcohol with 7 EO, a C-ms-oxo-alcohol with 8 EO or a

Mixture of these two oxo alcohols used as nonionic surfactant in the liquid detergents or cleaners.

Suitable further nonionic surfactants are, in particular, alkoxylated fatty alcohols. These are preferably ethoxylated, in particular primary alcohols having in particular 8 to 18 carbon atoms and an average of 4 to 12 moles of ethylene oxide (EO) per mole of alcohol. In particular, alcohol ethoxylates having 12 to 18 C 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, for example, Ci ₂ -i4 alcohols with 4 EO or 7 EO, Cg-n-alcohol with 7 EO, Ci2-i8 alcohols with 5 EO or 7 EO and mixtures of 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). In addition to these nonionic surfactants, fatty alcohols with more than 12 EO can also be used. Examples include tallow fatty alcohol with 14 EO, 25 EO, 30 EO or 40 EO. 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 of a C16-18 fatty alcohol with 7 EO and 2-propylheptanol with 7 EO.

The content of alkoxylated oxo-alcohol is preferably 5 to 40 wt .-% and more preferably 10 to 35 wt .-%, each based on the total liquid washing or

Cleaning supplies. The amount of further nonionic surfactants is preferably less than 5 wt .-%, more preferably less than 2 wt .-% and particularly preferably less than 1 wt .-%, each based on the total amount of liquid detergent or cleaning agent.

It is preferred that the liquid detergent or cleaning agent further contains an anionic surfactant. The content of anionic surfactant is preferably 5 to 50% by weight or more preferably 10 to 40 wt .-%, each based on the total liquid washing or

Cleaning supplies.

Suitable anionic surfactant include alkylbenzenesulfonic acid salts, olefinsulfonic, d _{_2-18} -Alkansulfonsäuresalze, salts of Schwefelsäuremonoestern with a fatty alcohol, a fatty acid soaps, salts of Schwefelsäuremonoestern with an ethoxylated fatty alcohol or a mixture of two or more of these anionic surfactants can. Of these anionic surfactants, alkylbenzenesulfonic acid salts, fatty acid soaps and mixtures thereof are particularly preferred.

As surfactants of the sulfonate type preferably come C ₉ .i ₃ -Alkylbenzolsulfonate,

Olefinsulfonates, ie mixtures of alkene and hydroxyalkanesulfonates and disulfonates, as obtained for example from Ci ₂ -i 8-monoolefins with terminal or internal double bond by sulfonation with gaseous sulfur trioxide and subsequent alkaline or acidic hydrolysis of the sulfonation, into consideration. Also suitable are C ₂ -i 8-alkanesulfonates and the esters of α-sulfofatty acids (ester sulfonates), for example, the α-sulfonated Methylester of hydrogenated coconut, palm kernel or tallow fatty acids.

Alk (en) yl sulfates are the salts of the Schwefelsäurehalbester Ci ₂ -C ₈ fatty alcohols, for example coconut fatty alcohol, tallow fatty alcohol, lauryl, myristyl, cetyl or stearyl alcohol, or C ₀ -C ₂₀ oxo-alcohols and those Halbester secondary alcohols of these chain lengths are preferred. Of washing technology interest, the C ₁₂ -C ₁₆ alkyl sulfates and C ₁₂ -C ₁₅ alkyl sulfates and C ₁₄ -C ₁₅ alkyl sulfates are preferred. 2,3-alkyl sulfates are also suitable anionic surfactants.

Also, fatty alcohol ether sulfates, such as the sulfuric acid monoesters of straight-chain or branched C ₇ ethoxylated with from 1 to 6 mol of ethylene oxide. ₂ i-alcohols, such as 2-methyl-branched C ₉ .n-alcohols having an average of 3.5 moles of ethylene oxide (EO) or Ci ₂ _i ₈ -Fettalkohole with 1 to 4 EO, are suitable.

Further suitable anionic surfactants are fatty acid 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 behenic acid, and in particular derived from natural fatty acids, for example coconut, palm kernel, olive oil or tallow fatty acids

Soap mixtures.

The anionic surfactants including the fatty acid soaps may be in the form of their sodium, potassium or magnesium or ammonium salts. Preferably, the anionic surfactants are in the form of their sodium salts or ammonium salts. Amines which can be used for neutralization are preferably choline, triethylamine, monoethanolamine, diethanolamine, triethanolamine,

Methylethylamine or a mixture thereof, with monoethanolamine is preferred. In a most preferred embodiment, the liquid washing or contains

Detergent neutralized with monoethanolamine alkylbenzenesulfonic acid, especially C ₉ -i 3-alkylbenzenesulfonic acid, and / or neutralized with monoethanolamine fatty acid.

The neutralization with amines, unlike bases such as NaOH or KOH, does not lead to the formation of water. Thus, low-water detergents or cleaners can be prepared which are directly suitable for use in water-soluble bags.

The total amount of anionic surfactant and nonionic surfactant in the liquid washing or cleaning agent is preferably up to 85 wt .-%, preferably 40 to 75 wt .-% and particularly preferably 50 to 70 wt .-%, based on the total liquid washing or Cleaning supplies.

The washing or cleaning agent is liquid. The washing or cleaning agent may contain water, the content of water being less than 15% by weight and more preferably less than 10% by weight, based in each case on the total washing or cleaning agent.

In addition to these constituents, a liquid washing or cleaning agent contains particles whose diameter along their greatest spatial extent is preferably 1 to 300 μm and more preferably 5 to 100 μm.

For the purposes of this invention, particles may be capsules, abrasives as well as powders, granules or compounds of compounds which are insoluble in the liquid washing or cleaning agent. In a preferred embodiment, the particles are capsules. In a further preferred embodiment, the particles are insoluble compounds in the liquid washing or cleaning agent, in particular cellulose derivatives, such as, for example, carboxymethylcellulose or hydroxyalkylmethylcelluloses, or pearlescent compounds.

The term "capsule" on the one hand understood 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).

Inside the capsules, sensitive, chemically or physically incompatible as well as volatile components (= active ingredients) of the liquid washing or cleaning agent can be enclosed stable in storage and transport. In the capsules, for example, optical brighteners, surfactants, complexing agents, bleaching agents, bleach activators, dyes and fragrances,

Antioxidants, builders, enzymes, enzyme stabilizers, antimicrobial agents,

Grayness inhibitors, antiredeposition agents, pH adjusters, electrolytes, detergency boosters, Vitamins, proteins, foam inhibitors and UV absorbers are located. The fillings of the capsules may be solids or liquids in the form of solutions or emulsions or suspensions.

The capsules may have any shape in the production-related framework, but they are preferably approximately spherical. Their diameter along their greatest spatial extent, depending on the components contained in their interior and the application between 1 μιη and 100 μιη, preferably between 5 and 40 μιη lie.

Alternatively, it is also possible to use particles which have no core-shell structure but in which the active substance is distributed in a matrix of a matrix-forming material. Such particles are also referred to as "speckies".

The matrix formation in these materials takes place for example via gelation, polyanion-polycation interactions or polyelectrolyte-metal ion interactions and is well known in the art as well as the production of particles with these matrix-forming materials. An exemplary matrix-forming material is alginate. To produce alginate-based speckles, an aqueous alginate solution, which also contains the active ingredient to be enclosed or the active ingredients to be enclosed, is dripped off and then cured in a precipitation bath containing Ca ²⁺ ions or Al ³⁺ ions. Alternatively, other, matrix-forming materials can be used instead of alginate.

The release of the active ingredients from the capsules is usually carried out by destruction of the shell or the matrix due to mechanical, thermal, chemical or enzymatic action.

In a preferred embodiment, the liquid detergents or cleaners contain capsules in which one or more fragrances are contained.

The cellulose derivative is preferably selected from the group consisting of

Carboxymethyl cellulose (CMC), an ether sulfonic acid salt of cellulose, an acidic sulfuric ester salt of cellulose, methyl cellulose, ethyl cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose, hydroxypropylmethyl cellulose, methyl hydroxyethyl cellulose,

Methylcarboxymethylcellulose, ethylhydroxyethylcellulose and a mixture of these

Cellulose derivatives. Particularly preferred cellulose derivatives include carboxymethylcellulose, hydroxypropylmethylcellulose, methylhydroxyethylcellulose or mixtures of two or more of these cellulose derivatives. The diameter along the largest spatial extent of the cellulose derivatives is preferably 5 to 250 μιη. An advantage of the incorporation of

Cellulosederivaten in dispersed, particulate form is that it is not undesirable Viscosity increase of the liquid detergent or cleaning agent by the presence of a cellulose derivative comes.

Suitable pearlescent compounds include, for example, mica, metal oxide-coated mica, silica-coated mica, bismuth oxychloride-coated mica, bismuth oxychloride, glass, metal oxide-coated glass, polyester glitter and / or metal glitter. The diameter along the largest spatial extent of the pearlescent compounds is preferably 5 to 25 μιη. An especially preferred pearlescent compound is, for example, COSMI® SW-20 (ex Wunzhou Kuncai Pearlescent Pigment Co., LTD.).

Alternatively, the particles may comprise abrasives such as plastic or calcium carbonate beads as well as powders, granules or compounds of compounds insoluble in the detergent or cleaning agent.

The particles can be stably dispersed in the liquid detergents or cleaners. Stable means that the detergents or cleaning agents are stable at room temperature for a period of at least 4 weeks, and preferably for at least 6 weeks, without the particles in the medium creaming or sedimenting.

In a preferred embodiment of the invention contains the liquid washing or

Detergent same or different particles in amounts of 0, 1 to 10 wt .-%, in particular 0, 15 to 8 wt .-% and most preferably 0.2 to 5 wt .-%.

Another essential ingredient of the liquid detergent or cleaning agent is the fumed silica. Synthetic silica is produced industrially in different processes. The large-scale production of synthetic silica is mainly carried out by precipitation processes starting from water glass. Depending on the process conditions, silica produced in this way is called precipitated silicas, silica gels or colloidal silicic acid.

Pyrogenic silica is produced in a blast gas flame, starting from liquid chlorosilanes such as silicon tetrachloride (SiCl ₄ ).

It has been shown that pyrogenic silica is particularly suitable for structuring low-water detergents or cleaners.

Particularly clear and storage-stable washing or cleaning agents with dispersing properties are obtained when the fumed silica surface-modified, in particular hydrophobic surface-modified, is. A particularly good and stable structuring is surface-modified pyrogenic when used with hexadecylsilane or dimethyldichlorosilane

Silica in the liquid detergents or cleaning agents obtained. Suitable fumed silica is available, for example, under the names Aerosil® R 972, Aerosil® R 974 and Aerosil® R 816 from Evonik.

The amount of fumed silica in the liquid washing or cleaning agent is preferably from 0.1 to 10% by weight, and more preferably from 0.2 to 2% by weight.

The pyrogenic silica structured liquid washing or cleaning agents preferably have a viscosity in the range of 200 to 2000 mPas and more preferably in the range of 300 to 800 mPas. The determination of the viscosity is carried out at 20 ° C and with a Brookfield rotary viscometer type RVT at 20 rpm.

Furthermore, the liquid detergents or cleaners containing hexadecylsilane

structured surface modified fumed silica, a yield point. This is at least 0.1 Pa and preferably at least 0.3 Pa.

The flow limits of the liquid detergents or cleaning agents were measured with a rotary rheometer from TA-Instruments, type AR G2 at 20 ° C. This is a so-called Schubspannungskontrolliert.es rheometer.

To measure a yield point with a shear stress controlled rheometer various methods are described in the literature, which are known in the art.

The flow limits in the context of the present invention were determined as follows:

The samples were loaded in the rheometer with a time-increasing shear stress s (t). For example, the shear stress in the course of 10 minutes from

smallest possible value (e.g., 2 mPa) at e.g. 10 Pa can be increased. As a function of this shear stress, the deformation γ of the sample is measured. The deformation is plotted against the shear stress in a double-logarithmic plot. If the examined sample has a yield point, clearly two areas can be distinguished in this plot.

Below a certain shear stress, one finds a purely elastic deformation. The slope of the curve γ (σ) (log-log plot) in this area is one. Above this shear stress, the flow range begins and the slope of the curve is suddenly higher. the one

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. A convenient provision of the

Break point is possible by applying tangents to the two curve parts. Samples without yield point do not show a characteristic kink in the function γ (σ).

In addition to the surfactants, the fumed silica and the particles, the detergent or cleaning agent may contain other ingredients which are the performance and / or further improve the aesthetic properties of the washing or cleaning agent. In the context of the present invention, the washing or cleaning agent preferably additionally contains one or more substances from the group of builders, bleaches, enzymes, electrolytes, pH adjusters, perfumes, perfume carriers, fluorescers, dyes, hydrotopes, foam inhibitors, silicone oils, anti redeposition agents, grayness inhibitors , Inlet preventer, anti-crease agents, color transfer inhibitors, antimicrobial agents, non-aqueous solvents,

Germicides, fungicides, antioxidants, preservatives, corrosion inhibitors, antistatics, bittering agents, ironing auxiliaries, repellents and impregnating agents, skin-care active ingredients, swelling and anti-slip agents, softening components and UV absorbers.

The liquid washing or cleaning agent can be filled into a water-soluble casing and thus be part of a water-soluble packaging.

A water-soluble packaging contains, in addition to the liquid washing or cleaning agent, a water-soluble coating. The water-soluble coating is preferably by a

formed water-soluble film material.

Such water-soluble packages can be obtained either by vertical methods

Formfüllversiegelns (VFFS) or thermoforming method can be produced.

The thermoforming process generally includes forming a first layer of water-soluble film material to form protuberances for receiving one

Composition therein, filling the composition into the protrusions, covering the composition filled protrusions with a second layer of one

water-soluble film material and sealing the first and second layers together at least around the bulges.

The water-soluble coating is preferably formed from a water-soluble film material selected from the group consisting of polymers or polymer blends. The wrap may consist of one or two or more layers of the water-soluble

Foil material are formed. The water-soluble film material of the first layer and the further layers, if present, may be the same or different.

The water-soluble package comprising the liquid detergent or water-soluble wrapper may have one or more chambers. The liquid detergent may be contained in one or more chambers, if any, of the water-soluble coating. The amount of liquid detergent or cleaning agent preferably corresponds to the full or half dose needed for a wash. It is preferable that the water-soluble coating contains polyvinyl alcohol or a polyvinyl alcohol copolymer.

Suitable water-soluble films for producing the water-soluble coating are preferably based on a polyvinyl alcohol or a polyvinyl alcohol copolymer whose

Molecular weight in the range of 10,000 to 1,000,000 gmol ^"1 , preferably from 20,000 to 500,000 gmol ^{" 1} , more preferably from 30,000 to 100,000 gmol ^"1 and in particular from 40,000 to 80,000 gmol ^{" 1} .

The production of polyvinyl alcohol is usually carried out by hydrolysis of polyvinyl acetate, since the direct synthesis route is not possible. The same applies to polyvinyl alcohol copolymers which are prepared from correspondingly polyvinyl acetate copolymers. It is preferred if at least one layer of the water-soluble coating comprises a polyvinyl alcohol whose degree of hydrolysis makes up 70 to 100 mol%, preferably 80 to 90 mol%, particularly preferably 81 to 89 mol% and in particular 82 to 88 mol%.

In addition, a polymer selected from the group comprising a polyvinyl alcohol-containing sheet material suitable for producing the water-soluble sheath

(Meth) acrylic acid-containing (co) polymers, polyacrylamides, oxazoline polymers, polystyrene sulfonates, polyurethanes, polyesters, polyethers, polylactic acid or mixtures of the above polymers may be added. A preferred additional polymer is polylactic acids.

Preferred polyvinyl alcohol copolymers include, in addition to vinyl alcohol, dicarboxylic acids as further monomers. Suitable dicarboxylic acids are itaconic acid, malonic acid, succinic acid and

Mixtures thereof, with itaconic acid being preferred.

Likewise preferred polyvinyl alcohol copolymers include, in addition to vinyl alcohol, an ethylenically unsaturated carboxylic acid, its salt or its esters. Such polyvinyl alcohol copolymers particularly preferably contain, in addition to vinyl alcohol, acrylic acid, methacrylic acid, acrylates, methacrylates or mixtures thereof.

It may be preferred that the film material contains further additives. The film material may include, for example, plasticizers such as dipropylene glycol, ethylene glycol, diethylene glycol,

Propylene glycol, glycerol, sorbitol, mannitol or mixtures thereof. Further

Additives include, for example, release aids, fillers, crosslinking agents, surfactants, antioxidants, UV absorbers, antiblocking agents, detackifiers, or mixtures thereof.

Suitable water-soluble films for use in the casings of the water-soluble

Packaging according to the invention are films marketed by MonoSol LLC, for example under the designation M8630, C8400 or M8900. Other suitable films include films named Solublon® PT, Solublon® GA, Solublon® KC or Solublon® KL from Aicello Chemical Europe GmbH or the films VF-HP from Kuraray.

The water-soluble packaging may be dimensionally stable or deformable.

The water-soluble packaging may be formed as a dimensionally stable container, for example in the form of a capsule, box, box or container.

However, in principle it is also possible and preferred to mold the water-soluble packaging as a non-dimensionally stable container, for example as a bag. The shape of such a water-soluble packaging can be largely adapted to the conditions of use. There are, for example, various forms such as hoses, pillows, cylinders, bottles or discs in question.

The water soluble package may include one or more chambers for storing one or more agents.

The low-water detergents or cleaners according to the invention and the water-soluble detergents or cleaning compositions according to the invention can be used for washing or for cleaning textile or hard surfaces by using the water-poor detergent or cleaning agent according to the invention or the water-soluble packaging according to the invention with the low-water Washing or

Detergent produced a washing or cleaning liquor and this is brought into contact with the surface to be treated.

example

Liquid detergents or cleaners were prepared by conventional and known methods and procedures. In the following Table 1, the compositions of four detergents or cleaners according to the invention E1 to E4 and six are not

Detergents V1 to V6 according to the invention shown.

Table 1: Liquid washing or cleaning agents E1 to E4 and also V1 to V6 [all amounts are given in% by weight of active compound, based on the composition]

Ingredients E1 E2 E3 V1 V3 V4 V5 V6

C 2 -C 4 -alkylbenzenesulfonic acid 21 21 21 21 21 21 21 21 21 21

C ₁₃ -C ₁₅ oxo-alcohol with 8 EO 22.5 22.5 22.5 22.5 22.5 22.5 22.5 22.5 22.5 22.5 pyrogenic Si0 ₂ 1 2 - pyrogenic Si0 ₂ ² 1

pyrogenic Si0 ₂ ³ 1

Acrylic polymer ⁴ 1

Acrylic copolymer ⁵ 1

Cationic acrylic polymer ⁶ 0.5

Xanthan 0.4

Methacrylic acid 1

Crosslinked acrylic polymer ⁷ 1

Ci2 fatty acid 17,5 17,5 17,5 17,5 17,5 17,5 17,5 17,5 17,5 17,5 17,5

Glycerol 13 13 13 13 13 13 13 13 13 13

1, 2-propanediol 12.5 12.5 12.5 1 1, 5 12.5 12.5 13.0 13, 1 12.5 12.5

Ethanol 3.26 3.26 3.26 3.26 3.26 3.26 3.26 3.26 3.26 3.26

Phosphonate 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3

Monoethanolamine 6.4 6.4 6.4 6.4 6.4 6.4 6.4 6.4 6.4 6.4 6.4

Dyes, enzymes (cellulase,

Amylase & protease), optical 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8

Brightener & free perfume

Water 1, 74 1, 74 1, 74 1, 74 1, 74 1, 74 1, 74 1, 74 1, 74 1, 74

Hexadecylsilane aftertreated pyrogenic silica

² Dimethyldichlorosilane treated fumed silica with a specific surface area (BET) of 1 10 ± 20 m ² / g

³ dimethyldichlorosilane treated fumed silica with a specific surface area (BET) of 170 ± 20 m ² / g

⁴ polyols W30 (ex 3V Sigma)

⁵ Polygel W 400 (ex 3V Sigma)

⁶ Rheovis CSP (ex BASF)

⁷ Carbopol® Aqua 30 (ex Noveon)

The four detergents E1 to E4 were clear and stable for 8 weeks under various climatic conditions. The detergents E2 and E3 had a particularly clear appearance. The washing or cleaning agent E1 had a flow limit of 0.3 Pa. The washing or cleaning agent E4 had a yield strength of 0.7 Pa.

0.2% by weight of perfume capsules having a particle diameter d ₉₀ of less than 15 μm were homogeneously dispersed in the two washing or cleaning agents E1 and E2. In the washing or cleaning agent E3 were 0.4 wt .-% of a mica and Ti0 ₂ -containing

Pearlescent compound with a diameter in the range of 5 to 25 μιη dispersed. In the washing or cleaning agent E4 were 1, 5 wt .-% carboxymethyl cellulose with a

Particle diameter in the range of 5 to 250 μιη dispersed.

The four particle-containing detergents or cleaners E1 to E4 were stable under different climatic conditions for 8 weeks and showed no appreciable creaming and / or sedimentation of the respectively dispersed particles.

In the case of detergents V1 and V2, when the acrylic polymer or acrylic copolymer was added in the preparation process, gel-like clumps were formed which did not dissolve even in the course of the production process. In the case of the washing or cleaning agent V3, a translucent composition was obtained which after a few days strong

Precipitates showed. Also in the case of the washing or cleaning agent V4, clumps formed in the course of the manufacturing process. Detergent V5 was clear but showed slight precipitation after 4 weeks of storage, especially in storage conditions with temperatures above 30 ° C. In the case of the washing or cleaning agent V6, a cloudy composition was obtained, which separated into two phases after three days.

For the production of water-soluble packaging with the washing or cleaning agents E1 to E4 was a film of type M 8630 (ex Monosol) with a thickness of 76 μιη to form a Bulge pulled by vacuum into a trough. Subsequently, the bulge was filled with 30 ml of one of the liquid detergents or cleaners E1, E2, E3 or E4. After covering the agent filled bulges with a second layer of M 8630 film, the first and second layers were sealed together. The sealing temperature was 150 ° C and the sealing time 1, 1 seconds.

After 4, 8 and 12 weeks storage time of the water-soluble packaging with detergents or cleaning agents E1 to E4 under different climatic conditions, no application or dissolution of the water-soluble coating could be observed. In addition, no pores or holes, which would also lead to product leakage or leaks, were found. Also no appreciable creaming and / or sedimentation of the respectively dispersed particles was observed.

Water-soluble packaging with the detergents or cleaners E1 to E4 dissolved in washes at temperatures ranging from 20 to 95 ° C, without residue and showed a very good cleaning performance. In particular, water-soluble packaging with the washing or cleaning agent E4 showed a very high when used several times

graying-inhibiting cleaning performance.

Claims

claims

1. A liquid washing or cleaning agent, comprising

a) 5 to 85 wt .-%, based on the total washing or cleaning agent, surfactant selected from the group consisting of nonionic surfactants, anionic surfactants, cationic surfactants, zwitterionic surfactants and mixtures thereof, b) 0, 1 to 10 wt. -%, based on the total washing or cleaning agent, particles, c) 0, 1 to 10 wt .-%, based on the total washing or cleaning agent, fumed silica and

d) up to 15% by weight, based on the total washing or cleaning agent, of water.

2. Liquid washing or cleaning agent according to claim 1, characterized in that surfactant selected from the group consisting of nonionic surfactants, anionic surfactants and mixtures thereof.

3. Liquid washing or cleaning agent according to claim 1 or claim 2, characterized in that the fumed silica is surface-modified.

4. Liquid washing or cleaning agent according to claim 3, characterized in that the fumed silica is hydrophobically surface-modified.

5. A liquid washing or cleaning agent according to claim 3 or claim 4, characterized in that the fumed silica with hexadecylsilane or

Dimethyldichlorosilane is surface-modified.

6. Liquid detergent or cleaning agent according to any one of claims 1 to 5, characterized in that it contains the fumed silica in an amount of 0.2 to 2% by weight, based on the total washing or cleaning agent.

7. Liquid washing or cleaning agent according to one of claims 1 to 6, characterized in that it has a viscosity in the range of 200 to 2000 mPas, in particular in the range of 300 to 800 mPas (20 ° C, Brookfield rotational viscometer type RVT at 20 UpM).

8. A water-soluble packaging containing a liquid detergent or cleaning agent according to any one of claims 1 to 7 and a water-soluble coating

9. Water-soluble packaging according to claim 8, characterized in that the water-soluble casing contains polyvinyl alcohol or a polyvinyl alcohol copolymer.

10. Use of fumed silica in a liquid washing or

Detergent containing surfactant, particles and up to 15 wt .-%, based on the total washing or cleaning agent, water, for the stable dispersion of the particles in the liquid detergent or cleaning agent.