EP3353273B2 - Method for the care and cleaning of an automatic dishwasher - Google Patents
Method for the care and cleaning of an automatic dishwasher Download PDFInfo
- Publication number
- EP3353273B2 EP3353273B2 EP16770918.7A EP16770918A EP3353273B2 EP 3353273 B2 EP3353273 B2 EP 3353273B2 EP 16770918 A EP16770918 A EP 16770918A EP 3353273 B2 EP3353273 B2 EP 3353273B2
- Authority
- EP
- European Patent Office
- Prior art keywords
- acid
- job
- maintenance product
- fatty alcohol
- cleaning
- 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.)
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- 239000002562 thickening agent Substances 0.000 description 1
- 125000005208 trialkylammonium group Chemical group 0.000 description 1
- JREYOWJEWZVAOR-UHFFFAOYSA-N triazanium;[3-methylbut-3-enoxy(oxido)phosphoryl] phosphate Chemical compound [NH4+].[NH4+].[NH4+].CC(=C)CCOP([O-])(=O)OP([O-])([O-])=O JREYOWJEWZVAOR-UHFFFAOYSA-N 0.000 description 1
- HRXKRNGNAMMEHJ-UHFFFAOYSA-K trisodium citrate Chemical compound [Na+].[Na+].[Na+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O HRXKRNGNAMMEHJ-UHFFFAOYSA-K 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/66—Non-ionic compounds
- C11D1/72—Ethers of polyoxyalkylene glycols
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/20—Organic compounds containing oxygen
- C11D3/2075—Carboxylic acids-salts thereof
- C11D3/2086—Hydroxy carboxylic acids-salts thereof
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/20—Organic compounds containing oxygen
- C11D3/2075—Carboxylic acids-salts thereof
- C11D3/2082—Polycarboxylic acids-salts thereof
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D2111/00—Cleaning compositions characterised by the objects to be cleaned; Cleaning compositions characterised by non-standard cleaning or washing processes
- C11D2111/10—Objects to be cleaned
- C11D2111/14—Hard surfaces
-
- 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
- C11D2111/00—Cleaning compositions characterised by the objects to be cleaned; Cleaning compositions characterised by non-standard cleaning or washing processes
- C11D2111/10—Objects to be cleaned
- C11D2111/14—Hard surfaces
- C11D2111/20—Industrial or commercial equipment, e.g. reactors, tubes or engines
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/0005—Other compounding ingredients characterised by their effect
- C11D3/0047—Other compounding ingredients characterised by their effect pH regulated compositions
Definitions
- the present invention relates to a method for the care and cleaning of automatic dishwashers, which removes grease and limescale deposits in an automatic dishwasher and can be used together with an automatic dishwasher detergent in a normal dishwashing cycle.
- Care products for removing such deposits are known in the prior art.
- the known care products are not used in normal dishwashing programs to clean dishes together with a dishwashing detergent, but are usually dosed into the empty dishwasher. This is particularly due to the fact that the known care products have a strong negative influence on the cleaning effect of conventional dishwashing detergents.
- care products which contain at least one non-ionic surfactant and at least one acid or a buffer system comprising at least one acid and at least one base and which have a pH of ⁇ 6 in a solution of 10% by weight in water, 5, meet these requirements by having very good fat- and lime-dissolving properties and by not significantly influencing the cleaning performance of the dishwashing detergent for the dishes.
- US 20110139182 discloses the use of a dishwashing detergent that releases at least 250 ppm of nonionic surfactant in the dishwashing cycle to clean the internal parts of a dishwasher.
- the WO03035819 A1 describes two- or multi-phase tablets for preventing film formation on glasses during dishwashing.
- the DE2259830 A1 as well as the DE20022229U each relate to combinations of cleaning agents and rinse aids.
- the care product is used together with an automatic dishwashing detergent in a normal cleaning cycle for cleaning dirty items to be washed, ie in the presence of items to be cleaned (or dishes).
- This has the advantage of preventing the machine from idling at high water temperatures. Energy and water are therefore not wasted.
- the consumer does not have to empty the machine during daily operation, but can also clean the machine at the same time as the dishes. Due to this minimal effort for the consumer, regular cleaning of the machine is made easier. In such a case, there is no accumulation of stubborn dirt on the dishwasher that can only be removed under harsh conditions.
- using the care product at the same time as the usual dishwashing cycle saves time, water and energy. Food residues and dirt, especially in the dishwasher sieve, are also a breeding ground for unwanted food Germs are significantly reduced and thus contribute to an improvement in the microbiological condition of the machine
- At least one includes, but is not limited to, 1, 2, 3, 4, 5, 6 and more.
- the information in % by weight given in this application refers to the active ingredient content in g based on the weight of the entire composition in g.
- Normal cleaning cycle refers to a program for cleaning dishes (dishes) of an automatic dishwasher. Such a cleaning cycle may include one or more pre-rinsing steps, one or more main rinsing steps and one or more drying steps. Such a cleaning cycle includes the automatic cleaning/rinsing of dirty items or dishes.
- the alkyl group R 1 is a linear, preferably unsubstituted, alkyl group with 16 to 18 carbon atoms.
- the fatty alcohol alkoxylate preferably the fatty alcohol ethoxylate, in particular the fatty alcohol ethoxylate of the formula (I), is in the care product in an amount of 1 to 40% by weight, preferably 2 to 20% by weight, particularly preferably 5 to 15% by weight, based on the Care products included. Such amounts are required to ensure adequate fat dissolution and removal.
- the absolute amount of the at least one fatty alcohol alkoxylate, preferably fatty alcohol ethoxylate, in particular fatty alcohol ethoxylate of the formula (I) in the composition is 0.1 to 4 g/job, preferably 1 to 3 g/job, in particular 1.5 to 2.5 g/job , for example 2 g/job.
- the indication "g/job” means that the care product contains the specified amount of fatty alcohol ethoxylate in an amount and form intended for a single use. It has been shown that good results are achieved, particularly with amounts of the care product of 10 g and more, typically 10 to 50 g, preferably 15 to 30 g, in particular 20 to 25 g, per application the grease and limescale can be removed.
- the amount of care product is such that the care product lowers the pH of the rinsing liquor, preferably by up to a maximum of 2 units, more preferably to a pH in the range of greater than 7 to less than the pH of the rinsing liquor in the absence of the care product, most preferably to a pH value in the range from greater than 8 to less than the pH value of the rinsing liquor in the absence of the care product.
- pH value of the washing liquid in the absence of the care product refers to the pH value of the washing liquid in the presence of only the automatic dishwashing liquid but without the care product according to the invention.
- the fatty alcohol alkoxylate preferably the fatty alcohol ethoxylate, in particular the fatty alcohol ethoxylate of the formula (I), is preferably a fatty alcohol ethoxylate that is solid under standard conditions (temperature 25 ° C, pressure 1013 mbar) and can preferably be used in the form of a powder or granules.
- the ratio of the ethylene oxide units and the higher alkylene oxide units in the fatty alcohol alkoxylate of formula (II) is 12:1 to 1:1, preferably 10:1 to 2:1, in particular 6:1 to 3:1 .
- the fatty alcohol alkoxylate of the formula (II) is contained in the care product in particular in an amount of 0.01 to 3% by weight, preferably 0.1 to 2% by weight, more preferably 1% by weight, based on the composition.
- the absolute amount of the fatty alcohol alkoxylate of the formula (II) in the composition is in particular 0.001 to 3 g/job, preferably 0.01 to 1 g/job, even more preferably 0.1 to 0.5, very particularly preferably 0.2 g/job job.
- the weight ratio of the fatty alcohol alkoxylate, preferably the fatty alcohol ethoxylate, in particular the fatty alcohol ethoxylate of the formula (I) and the fatty alcohol alkoxylate of the formula (II) is 20:1 to 1:1, preferably 15:1 to 5:1 , especially 10:1.
- the fatty alcohol ethoxylate of the formula (II) is preferably also a fatty alcohol ethoxylate that is solid under standard conditions (temperature 25 ° C, pressure 1013 mbar) and is preferably also used in the form of a powder or granules.
- compositions described herein may contain at least one further nonionic surfactant.
- All nonionic surfactants known to those skilled in the art can be used as nonionic surfactants.
- Suitable nonionic surfactants are, for example, alkyl glycosides of the general formula RO( G ) is, which represents a glycose unit with 5 or 6 carbon atoms, preferably glucose.
- the degree of oligomerization x, which determines the distribution of monoglycosides and Oligoglycosides is any number between 1 and 10; preferably x is 1.2 to 1.4.
- nonionic surfactants that can be used are alkoxylated, preferably ethoxylated or ethoxylated and propoxylated fatty acid alkyl esters, preferably with 1 to 4 carbon atoms in the alkyl chain.
- Nonionic surfactants of the amine oxide type for example N-cocoalkyl-N,N-dimethylamine oxide and N-tallow alkyl-N,N-dihydroxyethylamine oxide, and the fatty acid alkanolamides may also be suitable.
- the amount of these nonionic surfactants is preferably not more than that of the ethoxylated fatty alcohols, in particular not more than half of it.
- Suitable surfactants are the polyhydroxy fatty acid amides known as PHFA.
- the care compositions described herein further contain pH regulators in the form of at least one acid or a buffer system that contains at least one acid and at least one base.
- the pH value of the agent can be adjusted such that a 10% solution (w/w) in distilled water at 20°C has a pH value of ⁇ 6.5, preferably ⁇ 6.0.
- This pH value is preferably between 4.7 and 6.4, in particular between 5.0 and 6.0, very particularly preferably between 5.0 and 5.6.
- the acid used is preferably organic acids, such as citric acid, oxalic acid or their hydrates, most preferably citric acid.
- suitable acids are polycarboxylic acids, with polycarboxylic acids being those carboxylic acids that carry more than one acid function.
- these are oxalic acid, citric acid, adipic acid, succinic acid, glutaric acid, malic acid, tartaric acid, maleic acid, fumaric acid, sugar acids, aminocarboxylic acids, nitrilotriacetic acid (NTA), provided such use is not objectionable for ecological reasons, as well as mixtures of these.
- aminocarboxylic acids include aspartic acid, methyl glycine diacetic acid (MGDA) and glutamic diacetic acid (GLDA) or ethylenediamine diacetic acid. Also suitable are iminodisuccinic acid (IDS) and iminodiacetic acid (IDA). However, it is preferred that the acids used are not aminocarboxylic acids.
- Suitable bases are all bases known in the art for dishwashing detergents. However, it is preferred that in the buffer system of acid and base, the base corresponding to the acid is used, i.e. for example citrate if citric acid is used as the acid. Organic acids and their corresponding bases are therefore preferably used.
- the acid or the buffer system of acid and base is in the care product in an amount of from 1 to 80% by weight, preferably 5 to 60% by weight, particularly preferably 20 to 45% by weight, based on the care product respective (crystal) anhydrous form. Such quantities are necessary to ensure sufficient limescale removal.
- the absolute amount of the at least one acid or the buffer system in the composition, based on the respective (crystal-)anhydrous form, is 0.2 to 16 g/job, preferably 3 to 10 g/job, particularly preferably 4 to 9 g/job. job, for example 7 to 8 g/job.
- the amounts given refer to the sum of acid and base.
- the amounts of acid and base in the buffer system must be chosen so that the desired pH range is achieved.
- the acid and possibly also bases used are preferably solid under standard conditions (temperature 25 ° C, pressure 1013 mbar) and can preferably be used in the form of a powder, finely crystalline or in the form of granules.
- the agents according to the invention can contain at least one further component, preferably selected from the group consisting of further surfactants, in particular anionic surfactants, further builders, enzymes, thickeners, sequestering agents, electrolytes, corrosion inhibitors, in particular silver protective agents, glass corrosion inhibitors, foam inhibitors, dyes, fragrances, bitter substances, and antimicrobial agents.
- further surfactants in particular anionic surfactants, further builders, enzymes, thickeners, sequestering agents, electrolytes, corrosion inhibitors, in particular silver protective agents, glass corrosion inhibitors, foam inhibitors, dyes, fragrances, bitter substances, and antimicrobial agents.
- the agent is free of phosphates and/or phosphonates. In further preferred embodiments, the agent is bleach-free.
- “Phosphate-free” and “phosphonate-free” as used herein means that the composition in question is essentially free of phosphates or phosphonates, i.e. in particular phosphates or phosphonates in amounts less than 0.1% by weight, preferably less than 0 .01% by weight based on the total composition. It is preferred that a total amount of phosphorus of 0.3 g per job is preferably not exceeded 0.03 g.
- Preferred anionic surfactants are fatty alcohol sulfates, fatty alcohol ether sulfates, dialkyl ether sulfates, monoglyceride sulfates, alkyl benzene sulfonates, olefin sulfonates, alkane sulfonates, ether sulfonates, n-alkyl ether sulfonates, ester sulfonates and lignin sulfonates.
- fatty acid cyanamides sulfosuccinates (sulfosuccinic acid esters), in particular sulfosuccinic acid mono- and di-alkyl esters with 8 to 18 carbon atoms, sulfosuccinamates, sulfosuccinamides, fatty acid isethionates, acylaminoalkanesulfonates (fatty acid taurides), fatty acid sarcosinates, Ether carboxylic acids and alkyl (ether) phosphates as well as ⁇ -sulfofatty acid salts, acyl glutamates, monoglyceride disulfates and alkyl ethers of glycerine disulfate.
- sulfosuccinates sulfosuccinic acid esters
- sulfosuccinic acid mono- and di-alkyl esters with 8 to 18 carbon atoms sulfosuccinamates,
- the anionic surfactants are preferably used as sodium salts, but can also be present as other alkali or alkaline earth metal salts, for example potassium or magnesium salts, as well as in the form of ammonium or mono-, di-, tri- or tetraalkylammonium salts, in the case of sulfonates also in the form of their corresponding acid, e.g. dodecylbenzenesulfonic acid.
- builders that can be used include carbonates and silicates, whereby their use must be taken into account when formulating the amount of acid or the buffer system with regard to buffer capacity and pH value.
- Alkaline carbonates, in particular sodium carbonate, are contained in various embodiments of the invention in an amount of 0 to 15% by weight, preferably 0 to 10% by weight, based on the care product/composition.
- the agents can also be crystalline layered silicates of the general formula NaMSi x O 2x+i ⁇ y H 2 O, in which M represents sodium or hydrogen, particularly preferred values for x are 2, 3 or 4, and y is a number from 0 to 33, preferably from 0 to 20.
- the silicate content based on the total weight of the dishwashing detergent, is limited to amounts below 10% by weight, preferably below 5% by weight and in particular below 2% by weight. Particularly preferred agents are silicate-free.
- fragrance compounds for example synthetic products of the ester, ether, aldehyde, ketone, alcohol and hydrocarbon type, can be used as perfume oils or fragrances.
- perfume oils can also contain natural fragrance mixtures such as those available from plant sources, for example pine, citrus, jasmine, patchouli, rose or ylang-ylang oil.
- the care products described here can be manufactured in different ways.
- the funds can be in solid or liquid form or as a combination of solid and liquid forms. Powders, granules, extrudates, compacts, in particular tablets, are particularly suitable as solid forms.
- the liquid forms based on water and/or organic solvents can be thickened and in the form of gels.
- the care product is available in a fixed form. “Solid” in this context means that the composition is in solid form under standard conditions (temperature 25 ° C, pressure 1013 mbar).
- the at least one surfactant and/or the at least one acid or the buffer system is present at 25° C. (pressure 1013 mbar) in the solid state, for example as a powder or granulate, and reduced - processed with the other components of the solid care product - does not affect the flowability of the care product produced and can therefore be incorporated in any quantity.
- the agents described herein are preferably pre-assembled into dosage units. These dosing units preferably include the amount of washing or cleaning-active substances necessary for a cleaning cycle. Preferred dosage units have a weight of between 10 and 50 g, preferably between 20 and 30 g and in particular 25 g. In order to achieve an optimal cleaning result, preference is given to agents that are in the form of a prefabricated dosing unit.
- the volume of the aforementioned dosing units and their spatial shape can be selected such that the pre-assembled units cannot be dosed via the dosing chamber of a dishwasher, but rather the unit must be placed directly into the interior of the dishwasher.
- the agents and compositions described herein have a water-soluble coating.
- the prefabricated dosage units are particularly preferably formed by a water-soluble coating of a corresponding portion of the composition according to the invention, so the prefabricated dosage unit preferably comprises an agent according to the invention and a water-soluble coating/packaging.
- the water-soluble covering is preferably formed from a water-soluble film material selected from the group consisting of polymers or polymer mixtures.
- the wrapping may be formed from one or two or more layers of the water-soluble film material.
- the water-soluble film material of the first layer and the additional layers, if present, can be the same or different. Films that can be glued and/or sealed to form packaging such as tubes or pillows after they have been filled with an agent are particularly preferred.
- the water-soluble casings/packaging are preferably deep-drawn bodies or injection-molded bodies.
- the water-soluble containers/wraps/packaging can also be manufactured by injection molding.
- Injection molding refers to the reshaping of a molding compound in such a way that the mass contained in a compound cylinder for more than one injection molding process softens plastically under the influence of heat and flows under pressure through a nozzle into the cavity of a previously closed tool.
- the process is mainly used for non-curable molding compounds that solidify in the mold when cooled.
- Injection molding is a very economical, modern process for producing non-cutting shaped objects and is particularly suitable for automated mass production.
- thermoplastic molding materials are heated until they liquefy (up to 180 °C) and are then injected under high pressure (up to 140 MPa) into closed, two-part dies (formerly Die) and core (formerly male) existing, preferably water-cooled, hollow molds, where they cool and solidify.
- Piston and screw injection molding machines can be used.
- Such shaped bodies can also have one, two, three or more chambers and be filled with liquid and/or solid compositions, one of which is one of the compositions according to the invention. It is, for example, possible to close the chambers on the open side either with a second molded body or with one or more water-soluble films (in particular as described herein). So the release of the compositions in the chambers can be controlled as desired according to the desired release time, either everything can be done at once (either directly at the beginning of the cleaning cycle or at a certain point in the course of the cleaning cycle) or by varying the film composition at certain, different points in time within the dishwasher cycle (for example depending on the temperature of the washing water) be released.
- the water-soluble coating contains polyvinyl alcohol or a polyvinyl alcohol copolymer.
- Water-soluble coatings that contain polyvinyl alcohol or a polyvinyl alcohol copolymer have good stability with a sufficiently high water solubility, in particular cold water solubility.
- Suitable water-soluble films for producing the water-soluble coating are preferably based on a polyvinyl alcohol or a polyvinyl alcohol copolymer, the molecular weight of which is in the range from 10,000 to 1,000,000 gmol -1 , preferably from 20,000 to 500,000 gmol -1 , particularly preferably from 30,000 to 100,000 gmol -1 and in particular from 40,000 to 80,000 gmol -1 .
- Polyvinyl alcohol is usually produced by hydrolysis of polyvinyl acetate, as the direct synthesis route is not possible. The same applies to polyvinyl alcohol copolymers, which are made from polyvinyl acetate copolymers. It is preferred if at least one layer of the water-soluble coating comprises a polyvinyl alcohol, the degree of hydrolysis of which is 70 to 100 mol%, preferably 80 to 90 mol%, particularly preferably 81 to 89 mol% and in particular 82 to 88 mol%.
- a polyvinyl alcohol-containing film material suitable for producing the water-soluble coating can additionally contain a polymer selected from the group comprising (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 dicarboxylic acids as further monomers. Suitable dicarboxylic acids are itaconic acid, malonic acid, succinic acid and mixtures thereof, with itaconic acid being preferred.
- polyvinyl alcohol copolymers include an ethylenically unsaturated carboxylic acid, its salt or its ester.
- such polyvinyl alcohol copolymers particularly preferably contain acrylic acid, methacrylic acid, acrylic acid esters, methacrylic acid esters or mixtures thereof.
- the film material contains further additives.
- the film material can, for example, contain plasticizers such as dipropylene glycol, ethylene glycol, diethylene glycol, propylene glycol, glycerin, sorbitol, mannitol or mixtures thereof.
- Other additives include, for example, release aids, fillers, crosslinking agents, surfactants, antioxidants, UV absorbers, anti-blocking agents, anti-adhesive agents or mixtures thereof.
- Suitable water-soluble films for use in the water-soluble wrappings of the water-soluble packaging according to the invention are films sold by MonoSol LLC, for example under the names M8630, C8400 or M8900.
- Other suitable films include films called Solublon® PT, Solublon® GA, Solublon® KC or Solublon® KL from Aicello Chemical Europe GmbH or the VF-HP films from Kuraray.
- the use of the care product according to the invention in a water-soluble coating has the advantage that, in contrast to the usual bottles, which are closed with a wax seal, which only dissolves at high water temperatures, the pre-proportioned dosage units can be used at lower temperatures and therefore possibly earlier during the cleaning process or during the rinsing cycle.
- a dosing unit pre-proportioned in this way usually takes up less space than one of the standard bottles previously used, which either have to be hung in the machine or placed in the cutlery basket. It can also be placed anywhere inside the dishwasher.
- the care product according to the invention can be used before or during Running through a dishwashing program (in the presence of items to be cleaned, in particular dirty dishes) either before the start of the main wash cycle or during the main wash cycle, they are metered into the interior of a dishwasher.
- the dosage or entry of the agent according to the invention into the interior of the dishwasher can be done manually.
- the care product is dosed into the interior of the automatic dishwasher directly at the beginning of the cleaning cycle, preferably before the automatic dishwasher detergent.
- the care product is preferably dosed into the interior of the dishwasher before or at the beginning of the washing cycle and before the machine dishwashing detergent is dosed via the dosing chamber at the start of the main wash cycle.
- the method according to the invention with a care product according to the invention can be used in all commercially available dishwashers, in particular household dishwashers, possible programs.
- preferred processes use low-temperature dishwashing programs. These are used in the household to clean dishes in order to save energy.
- Such programs usually have nominal washing temperatures of usually 45 to 55°C.
- the method is characterized in that during its course the temperature of the cleaning liquor in the main wash cycle is reduced to values of less than 70 ° C, preferably less than 60 ° C and preferably to temperatures between 30 and 58 ° C, preferably to temperatures between around 40 and around 55°C.
- Example 1 Influencing the cleaning performance of a multifunctional machine dishwashing detergent tablet
- a difference of more than one unit is considered to be a significant difference in cleaning performance.
- the following cleaning services were determined: Tea BOP minced meat Strength Without care products 4.8 9.1 8.4 With care products 4.8 8.8 8.4
- Recipe E4 was examined analogously; in addition, 21 g of the formulation were placed on the bottom of the dishwasher interior loaded with a Somat 7-Tab (Henkel) in the dosing compartment and the pH value of the washing liquor was measured immediately after the machine cleaner formula had dissolved in the washing water, and later the pH value of the rinsing liquor after dissolving the Somat 7 tab. 10%: pH 5.2 immediately after dissolving: pH 6.06 after dissolving the tab: pH 8.83
- the filter Before passing through, the filter (two parts) is weighed dry. The grease is placed directly in the upper basket of the machine and the dish cleaner is placed in the dosing compartment. A cycle is then run with the “Glass 40°C” program. You then remove the filter, let the remaining water drain for 30 minutes and use a scale to determine the amount of fat built up. The process is repeated until a fat mass of approx. 10 g is built up.
- the E4 formulation (21 g) was tested with various commercially available dishwashing detergents.
- the remaining amount of fat with the care product was 23 - 32% lower than the remaining amount of fat without the care product.
- Suitable slabs can be obtained, for example, from Naturstein Kohlenberg in Düsseldorf, Germany as IPP test slabs made of Bianco Carrara "CD" marble in the format 150 / 75 / 5 mm.
- the marble slabs are removed from coarse dirt and dust using a dry cloth. They are then rinsed with ethanol and wiped again with a dry, clean cloth, then left to air dry for about 5 minutes.
- the plates are now marked by engraving and weighed on an analytical balance.
- the machine cleaner to be tested is placed on the floor of the washing compartment and the washing program (50°C) is started.
- the marble slabs are dried in a drying cabinet at 105°C for 2 hours. After complete cooling, the lime-dissolving ability of the machine cleaner is determined by reweighing.
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Description
Die vorliegende Erfindung betrifft ein Verfahren zur Pflege und Reinigung von automatischen Geschirrspülmaschinen, das Fett- und Kalkablagerungen in einer automatischen Geschirrspülmaschine beseitigt und zusammen mit einem maschinellen Geschirrspülmittel in einem normalen Geschirrspülgang einsetzbar ist.The present invention relates to a method for the care and cleaning of automatic dishwashers, which removes grease and limescale deposits in an automatic dishwasher and can be used together with an automatic dishwasher detergent in a normal dishwashing cycle.
Die zunehmende Verwendung von Niedrigtemperatur- und Kurzprogrammen bei automatischen Geschirrspülmaschinen führt dazu, dass weniger Fettrückstände entfernt werden. Dies kann zu einer Ansammlung dieser Rückstände führen. Genauso wie Kalkablagerungen, die sich mit der Zeit im Innenraum der Geschirrspülmaschine bilden, können diese Fettablagerungen die Spülleistung beeinträchtigen und Defekte der Geschirrspülmaschine hervorrufen. Weiterhin kann Fehlbedienung im Haushalt, beispielsweise unzureichende Entfernung von Speiseresten vom Spülgut, Vernachlässigung der Reinigung der Maschine, Unterschätzung der Wasserhärte und Unterlassen des Auffüllens des Salztanks für die Enthärteranlage der Maschine, zu Fett- und/ oder Kalkablagerungen kommen. Die Ablagerungen stellen dabei nicht nur ein technisches, sondern auch ein ästhetisches Problem dar. Weiterhin stellen Speisereste und Verschmutzungen, insbesondere im Sieb der Spülmaschine, einen Nährboden für unerwünschte Keime dar.The increasing use of low temperature and short programs in automatic dishwashers results in less grease residue being removed. This can lead to a buildup of these residues. Just like limescale deposits that form inside the dishwasher over time, these grease deposits can impair washing performance and cause the dishwasher to malfunction. Furthermore, incorrect use in the household, for example inadequate removal of food residue from the dishes, neglecting to clean the machine, underestimating the hardness of the water and failing to fill the salt tank for the machine's softening system, can lead to grease and/or limescale deposits. The deposits represent not only a technical but also an aesthetic problem. Food residues and dirt, especially in the dishwasher sieve, also represent a breeding ground for unwanted germs.
Pflegemittel zur Beseitigung solcher Ablagerungen sind im Stand der Technik bekannt. Die bekannten Pflegemittel werden allerdings nicht bei den normalen Geschirrspülprogrammen zur Reinigung von Geschirr zusammen mit einem Geschirrspülmittel eingesetzt, sondern üblicherweise in die leere Geschirrspülmaschine dosiert. Das ist insbesondere dadurch begründet, dass die bekannten Pflegemittel die Reinigungswirkung üblicher Geschirrspülmittel stark negativ beeinflussen. Um die Anwendung solcher Pflegemittel für den Verbraucher zu vereinfachen, ist es allerdings wünschenswert, Pflegemittel bereitzustellen, die zusammen mit einem Geschirrspülmittel in einem normalen Reinigungszyklus zur Reinigung von schmutzigem Geschirr eingesetzt werden können und dabei den Innenraum der Geschirrspülmaschine effizient von unerwünschten Fett- und Kalkablagerungen befreien, ohne die Reinigungswirkung auf das angeschmutzte Geschirr deutlich zu verschlechtern bzw. nicht wesentlich nachteilig zu beeinflussen.Care products for removing such deposits are known in the prior art. However, the known care products are not used in normal dishwashing programs to clean dishes together with a dishwashing detergent, but are usually dosed into the empty dishwasher. This is particularly due to the fact that the known care products have a strong negative influence on the cleaning effect of conventional dishwashing detergents. However, in order to simplify the use of such care products for the consumer, it is desirable to provide care products that can be used together with a dishwashing detergent in a normal cleaning cycle to clean dirty dishes and thereby efficiently remove unwanted grease and limescale deposits from the interior of the dishwasher , without significantly impairing the cleaning effect on the soiled dishes or without having a significant negative impact.
Es wurde nun gefunden, dass Pflegemittel, die mindestens ein nichtionisches Tensid und mindestens eine Säure oder ein Puffersystem umfassend mindestens eine Säure und mindestens eine Base enthalten und die in einer Lösung von 10 Gew.-% in Wasser einen pH-Wert von <6,5 aufweisen, diese Anforderungen erfüllen, indem sie sehr gute fett- und kalklösende Eigenschaften aufweisen, sowie die Reinigungsleistung des Geschirrspülmittels für das Geschirr nicht wesentlich beeinflussen.It has now been found that care products which contain at least one non-ionic surfactant and at least one acid or a buffer system comprising at least one acid and at least one base and which have a pH of <6 in a solution of 10% by weight in water, 5, meet these requirements by having very good fat- and lime-dissolving properties and by not significantly influencing the cleaning performance of the dishwashing detergent for the dishes.
Die
In der US-Patentanmeldung
Die
Aus der
Die
In einem ersten Aspekt richtet sich die vorliegende Erfindung folglich auf Verfahren zur Reinigung und/oder Pflege einer automatischen Geschirrspülmaschine, dadurch gekennzeichnet, dass in einem normalen Reinigungszyklus zur Reinigung von Spülgut, insbesondere schmutzigem Geschirr, mit einem maschinellen Geschirrspülmittel ein getrennt vom Geschirrspülmittel formuliertes Pflegemittel für automatische Geschirrspülmaschinen zudosiert wird, wobei das Pflegemittel (a) mindestens ein nichtionisches Tensid, vorzugsweise ein Fettalkoholalkoxylat, und (b) mindestens eine Säure oder ein Puffersystem aus mindestens einer Säure und mindestens einer Base enthält, und wobei eine 10 Gew.- %ige Lösung des Pflegemittels in Wasser bei 20°C einen pH-Wert von <6,5, vorzugsweise <6,0, noch bevorzugter 5,0-5,6 aufweist, wobei sich das Pflegemittel in einer wasserlöslichen Verpackung, insbesondere in einer Polyvinylalkohol-haltigen Folie, befindet und
- dass mindestens ein nichtionisches Tensid ein Fettalkoholethoxylat der Formel (I) ist,
R1-O-(EO)m-H (I)
- wobei R1 eine lineare oder verzweigte, substituierte oder unsubstituierte Alkylgruppe mit 12 bis 24 C-Atomen ist;
- EO eine Ethylenoxid-Einheit ist; und
- m 10 bis 50 ist.
- that at least one nonionic surfactant is a fatty alcohol ethoxylate of the formula (I),
R 1 -O-(EO) m -H (I)
- where R 1 is a linear or branched, substituted or unsubstituted alkyl group with 12 to 24 carbon atoms;
- EO is an ethylene oxide unit; and
- m is 10 to 50.
In den erfindungsgemäßen Verfahren wird das Pflegemittel zusammen mit einem maschinellen Geschirrspülmittel in einem normalen Reinigungszyklus zur Reinigung von schmutzigem Spülgut, d.h. in Anwesenheit von zu reinigendem Spülgut (bzw. Geschirr), eingesetzt. Dies hat den Vorteil, dass ein Leerlauf der Maschine bei hohen Wassertemperaturen vermieden wird. Energie und Wasser werden somit nicht verschwendet. Weiterhin muss der Verbraucher die Maschine im täglichen Betrieb nicht leer räumen, sondern kann gleichzeitig mit dem Geschirr auch die Maschine reinigen. Aufgrund dieses minimalen Aufwands für den Verbraucher wird eine regelmäßige Reinigung der Maschine erleichtert. Es kommt in einem solchen Fall erst gar nicht zur Ansammlung hartnäckiger und nur unter harschen Bedingungen entfernbaren Verschmutzungen der Geschirrspülmaschine. Des Weiteren wird durch die gleichzeitige Nutzung des Pflegemittels im üblichen Geschirrreinigungszyklus mit Spülgut Zeit, Wasser und Energie gespart. Auch werden die Speisereste und Verschmutzungen, insbesondere im Sieb der Spülmaschine, die einen Nährboden für ungewünschte Keime darstellen, deutlich reduziert und tragen somit zu einer Verbesserung des mirkobiologischen Zustands der Maschine beiIn the method according to the invention, the care product is used together with an automatic dishwashing detergent in a normal cleaning cycle for cleaning dirty items to be washed, ie in the presence of items to be cleaned (or dishes). This has the advantage of preventing the machine from idling at high water temperatures. Energy and water are therefore not wasted. Furthermore, the consumer does not have to empty the machine during daily operation, but can also clean the machine at the same time as the dishes. Due to this minimal effort for the consumer, regular cleaning of the machine is made easier. In such a case, there is no accumulation of stubborn dirt on the dishwasher that can only be removed under harsh conditions. Furthermore, using the care product at the same time as the usual dishwashing cycle saves time, water and energy. Food residues and dirt, especially in the dishwasher sieve, are also a breeding ground for unwanted food Germs are significantly reduced and thus contribute to an improvement in the microbiological condition of the machine
"Mindestens ein", wie hierin verwendet, schließt ein, ist aber nicht begrenzt auf, 1, 2, 3, 4, 5, 6 und mehr."At least one" as used herein includes, but is not limited to, 1, 2, 3, 4, 5, 6 and more.
Die in dieser Anmeldung genannten Angaben in Gew.-% beziehen sich, soweit nichts anderes erwähnt, auf den Aktivstoffgehalt in g bezogen auf das Gewicht der gesamten Zusammensetzung in g.Unless otherwise stated, the information in % by weight given in this application refers to the active ingredient content in g based on the weight of the entire composition in g.
"Normaler Reinigungszyklus", wie hierin verwendet, bezieht sich auf ein Programm zum Reinigen von Spülgut (Geschirr) einer automatischen Geschirrspülmaschine. Ein solcher Reinigungszyklus kann einen oder mehrere Vorspülschritte, einen oder mehrere Hauptspülschritte und einen oder mehrere Trocknungsschritte umfassen. Ein solcher Reinigungszyklus beinhaltet das automatische Reinigen/Spülen von verschmutztem Spülgut bzw. Geschirr."Normal cleaning cycle" as used herein refers to a program for cleaning dishes (dishes) of an automatic dishwasher. Such a cleaning cycle may include one or more pre-rinsing steps, one or more main rinsing steps and one or more drying steps. Such a cleaning cycle includes the automatic cleaning/rinsing of dirty items or dishes.
Diese und weitere Aspekte, Merkmale und Vorteile der Erfindung werden für den Fachmann aus dem Studium der folgenden detaillierten Beschreibung und Ansprüche ersichtlich. Dabei kann jedes Merkmal aus einem Aspekt der Erfindung in jedem anderen Aspekt der Erfindung eingesetzt werden. Ferner ist es selbstverständlich, dass die hierin enthaltenen Beispiele die Erfindung beschreiben und veranschaulichen sollen, diese aber nicht einschränken und insbesondere die Erfindung nicht auf diese Beispiele beschränkt ist. Alle Prozentangaben sind, sofern nicht anders angegeben, Gewichts-%. Numerische Bereiche, die in dem Format "von x bis y" angegeben sind, schließen die genannten Werte ein. Wenn mehrere bevorzugte numerische Bereiche in diesem Format angegeben sind, ist es selbstverständlich, dass alle Bereiche, die durch die Kombination der verschiedenen Endpunkte entstehen, ebenfalls erfasst werden.These and other aspects, features and advantages of the invention will become apparent to those skilled in the art from reading the following detailed description and claims. Any feature from one aspect of the invention can be used in any other aspect of the invention. Furthermore, it is to be understood that the examples contained herein are intended to describe and illustrate the invention, but not to limit it and in particular the invention is not limited to these examples. Unless otherwise stated, all percentages are% by weight. Numerical ranges specified in the format "from x to y" include the stated values. When multiple preferred numerical ranges are specified in this format, it is understood that any ranges resulting from the combination of the various endpoints will also be captured.
In bevorzugten Ausführungsformen hat das Fettalkoholethoxylat die Formel (I)
R1-O-(EO)m-H (I),
wobei
- R1 eine lineare oder verzweigte, substituierte oder unsubstituierte Alkylgruppe mit 14 bis 20, insbesondere 16 bis 18 C-Atomen ist;
- EO eine Ethylenoxid-Einheit ist; und
- m 20 bis 30, vorzugsweise 22 bis 27, insbesondere 25 ist.
R 1 -O-(EO) m -H (I),
where
- R 1 is a linear or branched, substituted or unsubstituted alkyl group with 14 to 20, in particular 16 to 18, carbon atoms;
- EO is an ethylene oxide unit; and
- m is 20 to 30, preferably 22 to 27, in particular 25.
In besonders bevorzugten Ausführungsformen hat das Fettalkoholethoxylat die Formel (I)
R1-O-(EO)m-H (I),
wobei
- R1 eine lineare oder verzweigte, substituierte oder unsubstituierte Alkylgruppe mit 16 bis 18 C-Atomen ist;
- EO eine Ethylenoxid-Einheit ist; und
- m 20 bis 30, vorzugsweise 22 bis 27, insbesondere 25 ist.
R 1 -O-(EO) m -H (I),
where
- R 1 is a linear or branched, substituted or unsubstituted alkyl group with 16 to 18 carbon atoms;
- EO is an ethylene oxide unit; and
- m is 20 to 30, preferably 22 to 27, in particular 25.
In einer Ausführungsform ist die Alkylgruppe R1 eine lineare, vorzugsweise unsubstituierte, Alkylgruppe mit 16 bis 18 C-Atomen.In one embodiment, the alkyl group R 1 is a linear, preferably unsubstituted, alkyl group with 16 to 18 carbon atoms.
Das Fettalkoholalkoxylat, bevorzugt das Fettalkoholethoxylat, insbesondere das Fettalkoholethoxylat der Formel (I) ist in dem Pflegemittel in einer Menge von von 1 bis 40 Gew.%, vorzugsweise 2 bis 20 Gew.%, besonders bevorzugt 5 bis 15 Gew.% bezogen auf das Pflegemittel enthalten. Derartige Mengen sind erforderlich um eine ausreichende Fettlösung und -entfernung zu gewährleisten.The fatty alcohol alkoxylate, preferably the fatty alcohol ethoxylate, in particular the fatty alcohol ethoxylate of the formula (I), is in the care product in an amount of 1 to 40% by weight, preferably 2 to 20% by weight, particularly preferably 5 to 15% by weight, based on the Care products included. Such amounts are required to ensure adequate fat dissolution and removal.
Die absolute Menge des mindestens einen Fettalkoholalkoxylats, bevorzugt Fettalkoholethoxylats, insbesondere Fettalkoholethoxylats der Formel (I) in der Zusammensetzung beträgt 0,1 bis 4 g/job, vorzugsweise 1 bis 3 g/job, insbesondere 1,5 bis 2,5 g/job, beispielsweise 2 g/job. Die Angabe "g/job" bedeutet in diesem Zusammenhang, dass das Pflegemittel in einer für eine einmalige Anwendung gedachten Menge und Form die genannte Menge an Fettalkoholethoxylat enthält. Es hat sich gezeigt, dass sich insbesondere mit Mengen des Pflegemittels von 10 g und mehr, typischerweise 10 bis 50 g, vorzugsweise 15 bis 30 g, insbesondere 20 bis 25g, pro Anwendung gute Ergebnisse bei der Fett- und Kalkablösung erzielen lassen. In verschiedenen Ausführungsformen ist die Menge an Pflegemittel so bemessen, dass das Pflegemittel den pH-Wert der Spülflotte absenkt, vorzugsweise um bis zu maximal 2 Einheiten, noch bevorzugter auf einen pH-Wert im Bereich von größer 7 bis kleiner dem pH-Wert der Spülflotte in Abwesenheit des Pflegemittels, am bevorzugtesten auf einen auf einen pH-Wert im Bereich von größer 8 bis kleiner dem pH-Wert der Spülflotte in Abwesenheit des Pflegemittels. "pH-Wert der Spülflotte in Abwesenheit des Pflegemittels" bezieht sich auf den pH-Wert der Spülflotte in Anwesenheit von nur dem maschinellen Geschirrspülmittel aber ohne das erfindungsgemäße Pflegemittel.The absolute amount of the at least one fatty alcohol alkoxylate, preferably fatty alcohol ethoxylate, in particular fatty alcohol ethoxylate of the formula (I) in the composition is 0.1 to 4 g/job, preferably 1 to 3 g/job, in particular 1.5 to 2.5 g/job , for example 2 g/job. In this context, the indication "g/job" means that the care product contains the specified amount of fatty alcohol ethoxylate in an amount and form intended for a single use. It has been shown that good results are achieved, particularly with amounts of the care product of 10 g and more, typically 10 to 50 g, preferably 15 to 30 g, in particular 20 to 25 g, per application the grease and limescale can be removed. In various embodiments, the amount of care product is such that the care product lowers the pH of the rinsing liquor, preferably by up to a maximum of 2 units, more preferably to a pH in the range of greater than 7 to less than the pH of the rinsing liquor in the absence of the care product, most preferably to a pH value in the range from greater than 8 to less than the pH value of the rinsing liquor in the absence of the care product. “pH value of the washing liquid in the absence of the care product” refers to the pH value of the washing liquid in the presence of only the automatic dishwashing liquid but without the care product according to the invention.
Das Fettalkoholalkoxylat, bevorzugt das Fettalkoholethoxylat, insbesondere das Fettalkoholethoxylat der Formel (I) ist vorzugsweise ein bei Standardbedingungen (Temperatur 25°C, Druck 1013 mbar) festes Fettalkoholethoxylat und kann vorzugsweise in Form eines Pulvers oder Granulats eingesetzt werden.The fatty alcohol alkoxylate, preferably the fatty alcohol ethoxylate, in particular the fatty alcohol ethoxylate of the formula (I), is preferably a fatty alcohol ethoxylate that is solid under standard conditions (temperature 25 ° C, pressure 1013 mbar) and can preferably be used in the form of a powder or granules.
in verschiedenen Ausführungsformen enthalten die hierin beschriebenen Mittel mindestens ein zweites Fettalkoholalkoxylat der Formel (II)
R2-(AO)w-R3 (II),
wobei,
- R2 für eine lineare oder verzweigte, substituierte oder unsubstituierte Alkylgruppe mit 10 bis 16 C-Atomen steht;
- R3 für H oder einen linearen oder verzweigten Kohlenwasserstoffrest mit 2 bis 26 Kohlenstoffatomen steht;
- jedes A unabhängig für einen Rest aus der Gruppe -CH2CH2- und -CH2-CH(CH3)-, CH2- CH2-CH2-, CH2- CH2- CH2-CH2-, -CH2- CH(CH2-CH3)-, -CH2- C(CH3)2- oder -CH2- CH2-CH(CH3)- steht, wobei mindestens ein A -CH2CH2- und mindestens ein A -CH2-CH(CH3)-, CH2- CH2-CH2-, CH2- CH2- CH2-CH2-, -CH2- CH(CH2-CH3)-, -CH2- C(CH3)2- oder -CH2- CH2-CH(CH3)- ist; und w für eine ganze Zahl von 2 bis 50, vorzugsweise 10 bis 30, steht.
R 2 -(AO) w -R 3 (II),
where,
- R 2 represents a linear or branched, substituted or unsubstituted alkyl group with 10 to 16 carbon atoms;
- R 3 represents H or a linear or branched hydrocarbon radical with 2 to 26 carbon atoms;
- each A independently represents a radical from the group -CH 2 CH 2 - and -CH 2 -CH(CH 3 )-, CH 2 - CH 2 -CH 2 -, CH 2 - CH 2 - CH 2 -CH 2 -, -CH 2 - CH(CH 2 -CH 3 )-, -CH 2 - C(CH 3 ) 2 - or -CH 2 - CH 2 -CH(CH 3 )-, where at least one A is -CH 2 CH 2 - and at least one A -CH 2 -CH(CH 3 )-, CH 2 - CH 2 -CH 2 -, CH 2 - CH 2 - CH 2 -CH 2 -, -CH 2 - CH(CH 2 -CH 3 )-, -CH 2 - C(CH 3 ) 2 - or -CH 2 - CH 2 -CH(CH 3 )-; and w represents an integer from 2 to 50, preferably 10 to 30.
In verschiedenen Ausführungsformen, beträgt das Verhältnis der Ethylenoxid-Einheiten und der höheren Alkylenoxid-Einheiten in dem Fettalkoholalkoxylat der Formel (II) 12:1 bis 1:1, vorzugsweise 10:1 bis 2:1, insbesondere 6:1 bis 3:1. Besonders bevorzugt sind solche Fettalkohohlalkoxylate der Formel (II), bei denen R2 eine lineare Alkylgruppe mit 12-16 C-Atomen sowie R3= H und w=10 bis 30 ist.In various embodiments, the ratio of the ethylene oxide units and the higher alkylene oxide units in the fatty alcohol alkoxylate of formula (II) is 12:1 to 1:1, preferably 10:1 to 2:1, in particular 6:1 to 3:1 . Fatty alcohol alkoxylates of the formula (II) in which R 2 is a linear alkyl group with 12-16 carbon atoms and R 3 = H and w = 10 to 30 are particularly preferred.
Das Fettalkoholalkoxylat der Formel (II) ist in dem Pflegemittel insbesondere in einer Menge von 0,01 bis 3 Gew.%, vorzugsweise 0,1 bis 2 Gew.%, noch bevorzugter 1 Gew.% bezogen auf die Zusammensetzung enthalten. Die absolute Menge des Fettalkoholalkoxylats der Formel (II) in der Zusammensetzung beträgt insbesondere 0,001 bis 3 g/job, vorzugsweise 0,01 bis 1 g/job, noch bevorzugter 0,1 bis 0,5, ganz besonders bevorzugt 0,2 g/job. In verschiedenen optionalen Ausführungsformen der Erfindung beträgt das Gewichts-Verhältnis des Fettalkoholalkoxylats, bevorzugt des Fettalkoholethoxylats, insbesondere des Fettalkoholethoxylats der Formel (I) und des Fettalkoholalkoxylats der Formel (II) 20:1 bis 1:1, vorzugsweise 15:1 bis 5:1, insbesondere 10:1.The fatty alcohol alkoxylate of the formula (II) is contained in the care product in particular in an amount of 0.01 to 3% by weight, preferably 0.1 to 2% by weight, more preferably 1% by weight, based on the composition. The absolute amount of the fatty alcohol alkoxylate of the formula (II) in the composition is in particular 0.001 to 3 g/job, preferably 0.01 to 1 g/job, even more preferably 0.1 to 0.5, very particularly preferably 0.2 g/job job. In various optional embodiments of the invention, the weight ratio of the fatty alcohol alkoxylate, preferably the fatty alcohol ethoxylate, in particular the fatty alcohol ethoxylate of the formula (I) and the fatty alcohol alkoxylate of the formula (II) is 20:1 to 1:1, preferably 15:1 to 5:1 , especially 10:1.
Bevorzugt sind Kombinationen von 1 bis 18 Gew.-% eines Fettalkoholethoxylats der Formel (I) mit 0,1 bis 2 Gew.-% eines Fettalkoholalkoxylats der Formel (II), insbesondere Kombinationen von 6 bis 13 Gew.-% eines Fettalkoholethoxylats der Formel (I) mit 0,1 bis 2 Gew.-% eines Fettalkoholalkoxylats der Formel (II), beispielsweise auch 9 bis 10 Gew.-% eines Fettalkoholethoxylats der Formel (I) mit 0,1 bis 2 Gew.-% eines Fettalkoholalkoxylats der Formel (II). Es ist bei den vorstehend genannten Kombinationen insbesondere bevorzugt, wenn das Fettalkoholethoxylat gemäß Formel (I) folgende Parameter aufweist: R1 =linear C16-18 Alkyl-, m=25 und/oder das Fettalkoholalkoxylat gemäß Formel (II), wobei R2 eine lineare Alkylgruppe mit 12-16 C-Atomen sowie R3= H und w=10 bis 30 ist.Combinations of 1 to 18% by weight of a fatty alcohol ethoxylate of the formula (I) with 0.1 to 2% by weight of a fatty alcohol alkoxylate of the formula (II), in particular combinations of 6 to 13% by weight of a fatty alcohol ethoxylate of the formula (II), are preferred (I) with 0.1 to 2% by weight of a fatty alcohol alkoxylate of the formula (II), for example also 9 to 10% by weight of a fatty alcohol ethoxylate of the formula (I) with 0.1 to 2% by weight of a fatty alcohol alkoxylate of Formula (II). In the combinations mentioned above, it is particularly preferred if the fatty alcohol ethoxylate according to formula (I) has the following parameters: R 1 =linear C16-18 alkyl, m = 25 and / or the fatty alcohol alkoxylate according to formula (II), where R 2 is linear alkyl group with 12-16 carbon atoms and R 3 = H and w = 10 to 30.
Bevorzugt sind weiterhin Kombinationen von 1 bis 18 Gew.-% eines Fettalkoholethoxylats der Formel (I) mit 0,5 bis 1,5 Gew.-% eines Fettalkoholalkoxylats der Formel (II), insbesondere Kombinationen von 6 bis 13 Gew.-% eines Fettalkoholethoxylats der Formel (I) mit 0,5 bis 1,5 Gew.-% eines Fettalkoholalkoxylats der Formel (II), beispielsweise auch 9 bis 10 Gew.-% eines Fettalkoholethoxylats der Formel (I) mit 0,5 bis 1,5 Gew.-% eines Fettalkoholalkoxylats der Formel (II). Es ist bei den vorstehend genannten Kombinationen insbesondere bevorzugt, wenn das Fettalkoholethoxylat gemäß Formel (I) folgende Parameter aufweist: R1 =linear C16-18 Alkyl-, m=25 und/oder das Fettalkoholalkoxylat gemäß Formel (II), wobei R2 eine lineare Alkylgruppe mit 12-16 C-Atomen sowie R3= H und w=10 bis 30 ist.Combinations of 1 to 18% by weight of a fatty alcohol ethoxylate of the formula (I) with 0.5 to 1.5% by weight of a fatty alcohol alkoxylate of the formula (II), in particular combinations of 6 to 13% by weight of one, are also preferred Fatty alcohol ethoxylate of the formula (I) with 0.5 to 1.5% by weight of a fatty alcohol alkoxylate of the formula (II), for example also 9 to 10% by weight of a fatty alcohol ethoxylate of the formula (I) with 0.5 to 1.5 % by weight of a fatty alcohol alkoxylate of the formula (II). In the combinations mentioned above, it is particularly preferred if the fatty alcohol ethoxylate according to formula (I) has the following parameters: R 1 =linear C16-18 alkyl, m = 25 and / or the fatty alcohol alkoxylate according to formula (II), where R 2 is linear alkyl group with 12-16 carbon atoms and R 3 = H and w = 10 to 30.
Das Fettalkoholethoxylat der Formel (II) ist vorzugsweise ebenfalls ein bei Standardbedingungen (Temperatur 25°C, Druck 1013 mbar) festes Fettalkoholethoxylat und wird vorzugsweise auch in Form eines Pulvers oder Granulats eingesetzt.The fatty alcohol ethoxylate of the formula (II) is preferably also a fatty alcohol ethoxylate that is solid under standard conditions (temperature 25 ° C, pressure 1013 mbar) and is preferably also used in the form of a powder or granules.
Die hierin beschriebenen Mittel können mindestens ein weiteres nichtionisches Tensid enthalten. Als nichtionische Tenside können dabei alle dem Fachmann bekannten nichtionischen Tenside eingesetzt werden.The compositions described herein may contain at least one further nonionic surfactant. All nonionic surfactants known to those skilled in the art can be used as nonionic surfactants.
Als nichtionische Tenside eignen sich beispielsweise Alkylglykoside der allgemeinen Formel RO(G)x, in der R einem primären lineare oder methylverzweigten, insbesondere in 2-Stellung methylverzweigten aliphatischen Rest mit 8 bis 22, vorzugsweise 12 bis 18 C-Atomen entspricht und G das Symbol ist, das für eine Glykose-Einheit mit 5 oder 6 C-Atomen, vorzugsweise für Glucose, steht. Der Oligomerisierungsgrad x, der die Verteilung von Monoglykosiden und Oligoglykosiden angibt, ist eine beliebige Zahl zwischen 1 und 10; vorzugsweise liegt x bei 1,2 bis 1,4.Suitable nonionic surfactants are, for example, alkyl glycosides of the general formula RO( G ) is, which represents a glycose unit with 5 or 6 carbon atoms, preferably glucose. The degree of oligomerization x, which determines the distribution of monoglycosides and Oligoglycosides is any number between 1 and 10; preferably x is 1.2 to 1.4.
Eine weitere Klasse einsetzbarer nichtionischer Tenside sind alkoxylierte, vorzugsweise ethoxylierte oder ethoxylierte und propoxylierte Fettsäurealkylester, vorzugsweise mit 1 bis 4 Kohlenstoffatomen in der Alkylkette.Another class of nonionic surfactants that can be used are alkoxylated, preferably ethoxylated or ethoxylated and propoxylated fatty acid alkyl esters, preferably with 1 to 4 carbon atoms in the alkyl chain.
Auch nichtionische Tenside vom Typ der Aminoxide, beispielsweise N-Kokosalkyl-N,N-dimethylaminoxid und N-Talgalkyl-N,N-dihydroxyethylaminoxid, und der Fettsäurealkanolamide können geeignet sein. Die Menge dieser nichtionischen Tenside beträgt vorzugsweise nicht mehr als die der ethoxylierten Fettalkohole, insbesondere nicht mehr als die Hälfte davon.Nonionic surfactants of the amine oxide type, for example N-cocoalkyl-N,N-dimethylamine oxide and N-tallow alkyl-N,N-dihydroxyethylamine oxide, and the fatty acid alkanolamides may also be suitable. The amount of these nonionic surfactants is preferably not more than that of the ethoxylated fatty alcohols, in particular not more than half of it.
Weitere geeignete Tenside sind die als PHFA bekannten Polyhydroxyfettsäureamide.Other suitable surfactants are the polyhydroxy fatty acid amides known as PHFA.
Schließlich können auch weitere schwachschäumende nichtionische Tenside aus der Gruppe der alkoxylierten Alkohole eingesetzt werden.Finally, other low-foaming nonionic surfactants from the group of alkoxylated alcohols can also be used.
Die hierin beschriebenen Pflegezusammensetzungen enthalten ferner pH-Regulatoren in Form mindestens einer Säure bzw. eines Puffersystems, das mindestens eine Säure und mindestens eine Base enthält. Darüber kann der pH-Wert des Mittels derart eingestellt werden, dass eine 10-%ige Lösung (w/w) in destilliertem Wasser bei 20°C einen pH-Wert von <6,5, vorzugsweise <6,0 aufweist. Bevorzugt liegt dieser pH-Wert zwischen 4,7 und 6,4, insbesondere zwischen 5,0 und 6,0, ganz besonders bevorzugt zwischen 5,0 und 5,6. Bevorzugt werden als Säure organische Säuren, wie beispielsweise Zitronensäure, Oxalsäure oder deren Hydrate, ganz besonders bevorzugt Zitronensäure eingesetzt. Generell sind als Säuren Polycarbonsäuren geeignet, wobei unter Polycarbonsäuren solche Carbonsäuren verstanden werden, die mehr als eine Säurefunktion tragen. Beispielsweise sind dies Oxalsäure, Zitronensäure, Adipinsäure, Bernsteinsäure, Glutarsäure, Äpfelsäure, Weinsäure, Maleinsäure, Fumarsäure, Zuckersäuren, Aminocarbonsäuren, Nitrilotriessigsäure (NTA), sofern ein derartiger Einsatz aus ökologischen Gründen nichtzu beanstanden ist, sowie Mischungen aus diesen.The care compositions described herein further contain pH regulators in the form of at least one acid or a buffer system that contains at least one acid and at least one base. In addition, the pH value of the agent can be adjusted such that a 10% solution (w/w) in distilled water at 20°C has a pH value of <6.5, preferably <6.0. This pH value is preferably between 4.7 and 6.4, in particular between 5.0 and 6.0, very particularly preferably between 5.0 and 5.6. The acid used is preferably organic acids, such as citric acid, oxalic acid or their hydrates, most preferably citric acid. Generally suitable acids are polycarboxylic acids, with polycarboxylic acids being those carboxylic acids that carry more than one acid function. For example, these are oxalic acid, citric acid, adipic acid, succinic acid, glutaric acid, malic acid, tartaric acid, maleic acid, fumaric acid, sugar acids, aminocarboxylic acids, nitrilotriacetic acid (NTA), provided such use is not objectionable for ecological reasons, as well as mixtures of these.
Vertreter der Aminocarbonsäuren schließen Asparaginsäure, Methylglycindiessigsäure (MGDA) sowie Glutamindiessigsäure (GLDA) oder Ethylendiamindiessigsäure ein. Ebenfalls geeignet sind Iminodibernsteinsäure (IDS) und Iminodiessigsäure (IDA). Es ist allerdings bevorzugt, dass die eingesetzten Säuren keine Aminocarbonsäuren sind.Representatives of the aminocarboxylic acids include aspartic acid, methyl glycine diacetic acid (MGDA) and glutamic diacetic acid (GLDA) or ethylenediamine diacetic acid. Also suitable are iminodisuccinic acid (IDS) and iminodiacetic acid (IDA). However, it is preferred that the acids used are not aminocarboxylic acids.
Geeignete Basen sind alle im Stand der Technik für Geschirrspülmittel bekannten Basen. Es ist allerdings bevorzugt, dass in dem Puffersystem aus Säure und Base, die zu der Säure korrespondierende Base eingesetzt wird, d.h. beispielsweise Citrat wenn als Säure Zitronensäure verwendet wird. Vorzugsweise werden daher organische Säuren und ihre korrespondierenden Basen eingesetzt.Suitable bases are all bases known in the art for dishwashing detergents. However, it is preferred that in the buffer system of acid and base, the base corresponding to the acid is used, i.e. for example citrate if citric acid is used as the acid. Organic acids and their corresponding bases are therefore preferably used.
Die Säure bzw. das Puffersystem aus Säure und Base ist in dem Pflegemittel in einer Menge von von 1 bis 80 Gew.%, vorzugsweise 5 bis 60 Gew.%, besonders bevorzugt 20 bis 45 Gew.% bezogen auf das Pflegemittel, bezogen auf die jeweilige (kristall-)wasserfreie Form, enthalten. Derartige Mengen sind erforderlich um eine ausreichende Kalkentfernung zu gewährleisten.The acid or the buffer system of acid and base is in the care product in an amount of from 1 to 80% by weight, preferably 5 to 60% by weight, particularly preferably 20 to 45% by weight, based on the care product respective (crystal) anhydrous form. Such quantities are necessary to ensure sufficient limescale removal.
Die absolute Menge der mindestens einen Säure oder des Puffersystems in der Zusammensetzung beträgt, bezogen auf die jeweilige (kristall-)wasserfreie Form, 0,2 bis 16 g/job, vorzugsweise 3 bis 10 g/job, besonders bevorzugt 4 bis 9 g/job, beispielsweise 7 bis 8 g/job. Wenn ein Puffersystem aus Säure und Base eingesetzt wird, beziehen sich die angegebenen Mengen auf die Summe aus Säure und Base. Beispielsweise können von 2 bis 5 g/job, vorzugsweise 2,1 bis 4,6 g/job, noch bevorzugter 4 bis 4,6 g/job Säure, beispielsweise Zitronensäure, und von 2 bis 5 g/job, vorzugsweise 2 bis 4 g/job, noch bevorzugter 3 bis 3,5 g/job Base, beispielsweise Citrat, eingesetzt werden. Es ist selbstverständlich, dass die Mengen an Säure und Base in dem Puffersystem so gewählt werden müssen, dass der gewünschte pH-Bereich erzielt wird.The absolute amount of the at least one acid or the buffer system in the composition, based on the respective (crystal-)anhydrous form, is 0.2 to 16 g/job, preferably 3 to 10 g/job, particularly preferably 4 to 9 g/job. job, for example 7 to 8 g/job. If a buffer system consisting of acid and base is used, the amounts given refer to the sum of acid and base. For example, from 2 to 5 g/job, preferably 2.1 to 4.6 g/job, more preferably 4 to 4.6 g/job of acid, for example citric acid, and from 2 to 5 g/job, preferably 2 to 4 g/job, more preferably 3 to 3.5 g/job of base, for example citrate. It goes without saying that the amounts of acid and base in the buffer system must be chosen so that the desired pH range is achieved.
Die eingesetzten Säure und ggf. auch Basen sind vorzugsweise bei Standardbedingungen (Temperatur 25°C, Druck 1013 mbar) fest und können vorzugsweise in Form eines Pulvers, feinkristallin oder in Form eines Granulats eingesetzt werden.The acid and possibly also bases used are preferably solid under standard conditions (temperature 25 ° C, pressure 1013 mbar) and can preferably be used in the form of a powder, finely crystalline or in the form of granules.
Die erfindungsgemäßen Mittel können mindestens einen weiteren Bestandteil enthalten, vorzugsweise ausgewählt aus der Gruppe bestehend aus weiteren Tensiden, insbesondere anionischen Tensiden, weiteren Gerüststoffen, Enzymen, Verdickern, Sequestrierungsmitteln, Elektrolyten, Korrosionsinhibitoren, insbesondere Silberschutzmitteln, Glaskorrosionsinhibitoren, Schauminhibitoren, Farbstoffen, Duftstoffen, Bitterstoffen, und antimikrobiellen Wirkstoffen.The agents according to the invention can contain at least one further component, preferably selected from the group consisting of further surfactants, in particular anionic surfactants, further builders, enzymes, thickeners, sequestering agents, electrolytes, corrosion inhibitors, in particular silver protective agents, glass corrosion inhibitors, foam inhibitors, dyes, fragrances, bitter substances, and antimicrobial agents.
In bevorzugten Ausführungsformen ist das Mittel phosphat- und/oder phosphonatfrei. In weiteren bevorzugten Ausführungsformen ist das Mittel bleichmittelfrei. "Phosphatfrei" und "phosphonatfrei", wie hierin verwendet, bedeutet, dass die betreffende Zusammensetzung im Wesentlichen frei von Phosphaten bzw. Phosphonaten ist, d.h. insbesondere Phosphate bzw. Phosphonate in Mengen kleiner als 0,1 Gew.-%, vorzugsweise kleiner als 0,01 Gew.-% bezogen auf die Gesamtzusammensetzung enthält. Bevorzugt ist, dass eine Gesamtmenge an Phosphor von 0,3 g pro Job vorzugsweise 0,03 g nicht überschritten wird.In preferred embodiments, the agent is free of phosphates and/or phosphonates. In further preferred embodiments, the agent is bleach-free. “Phosphate-free” and “phosphonate-free” as used herein means that the composition in question is essentially free of phosphates or phosphonates, i.e. in particular phosphates or phosphonates in amounts less than 0.1% by weight, preferably less than 0 .01% by weight based on the total composition. It is preferred that a total amount of phosphorus of 0.3 g per job is preferably not exceeded 0.03 g.
Bevorzugte anionische Tenside sind Fettalkoholsulfate, Fettalkoholethersulfate, Dialkylethersulfate, Monoglyceridsulfate, Alkylbenzolsulfonate, Olefinsulfonate, Alkansulfonate, Ethersulfonate, n-Alkylethersulfonate, Estersulfonate und Ligninsulfonate. Ebenfalls im Rahmen der vorliegenden Erfindung verwendbar sind Fettsäurecyanamide, Sulfosuccinate (Sulfobernsteinsäureester), insbesondere Sulfobernsteinsäuremono- und -di-Alkylester mit 8 bis 18 C-Atomen, Sulfosuccinamate, Sulfosuccinamide, Fettsäureisethionate, Acylaminoalkansulfonate (Fettsäuretauride), Fettsäuresarcosinate, Ethercarbonsäuren und Alkyl(ether)phosphate sowie α-Sulfofettsäuresalze, Acylglutamate, Monoglyceriddisulfate und Alkylether des Glycerindisulfats.Preferred anionic surfactants are fatty alcohol sulfates, fatty alcohol ether sulfates, dialkyl ether sulfates, monoglyceride sulfates, alkyl benzene sulfonates, olefin sulfonates, alkane sulfonates, ether sulfonates, n-alkyl ether sulfonates, ester sulfonates and lignin sulfonates. Also usable within the scope of the present invention are fatty acid cyanamides, sulfosuccinates (sulfosuccinic acid esters), in particular sulfosuccinic acid mono- and di-alkyl esters with 8 to 18 carbon atoms, sulfosuccinamates, sulfosuccinamides, fatty acid isethionates, acylaminoalkanesulfonates (fatty acid taurides), fatty acid sarcosinates, Ether carboxylic acids and alkyl (ether) phosphates as well as α-sulfofatty acid salts, acyl glutamates, monoglyceride disulfates and alkyl ethers of glycerine disulfate.
Die anionischen Tenside werden vorzugsweise als Natriumsalze eingesetzt, können aber auch als andere Alkali- oder Erdalkalimetallsalze, beispielsweise Kalium- oder Magnesiumsalze, sowie in Form von Ammonium- oder Mono-, Di-, Tri- bzw. Tetraalkylammoniumsalzen enthalten sein, im Falle der Sulfonate auch in Form ihrer korrespondierenden Säure, z.B. Dodecylbenzolsulfonsäure.The anionic surfactants are preferably used as sodium salts, but can also be present as other alkali or alkaline earth metal salts, for example potassium or magnesium salts, as well as in the form of ammonium or mono-, di-, tri- or tetraalkylammonium salts, in the case of sulfonates also in the form of their corresponding acid, e.g. dodecylbenzenesulfonic acid.
Zu den einsetzbaren weiteren Gerüststoffen zählen Carbonate und Silikate, wobei deren Einsatz bei der Formulierung der Säuremenge bzw. des Puffersystems hinsichtlich Pufferkapazität und pH-Wert entsprechend zu berücksichtigen ist.Other builders that can be used include carbonates and silicates, whereby their use must be taken into account when formulating the amount of acid or the buffer system with regard to buffer capacity and pH value.
Möglich ist beispielsweise der Einsatz von Carbonat(en) und/oder Hydrogencarbonat(en), vorzugsweise Alkalicarbonat(en), besonders bevorzugt Natriumcarbonat. Alkalicarbonate, insbesondere Natriumcarbonat, sind in verschiedenen Ausführungsformen der Erfindung in einer Menge von 0 bis 15 Gew.%, vorzugsweise 0 bis 10 Gew.% bezogen auf das Pflegemittel/die Zusammensetzung enthalten.It is possible, for example, to use carbonate(s) and/or bicarbonate(s), preferably alkali metal carbonate(s), particularly preferably sodium carbonate. Alkaline carbonates, in particular sodium carbonate, are contained in various embodiments of the invention in an amount of 0 to 15% by weight, preferably 0 to 10% by weight, based on the care product/composition.
Die Mittel können als Gerüststoff weiterhin kristalline schichtförmige Silikate der allgemeinen Formel NaMSixO2x+i · y H2O, worin M Natrium oder Wasserstoff darstellt, x eine Zahl von 1,9 bis 22, vorzugsweise von 1,9 bis 4, wobei besonders bevorzugte Werte für x 2, 3 oder 4 sind, und y für eine Zahl von 0 bis 33, vorzugsweise von 0 bis 20 steht. Einsetzbar sind auch amorphe Natriumsilikate mit einem Modul Na2O : SiO2 von 1:2 bis 1:3,3, vorzugsweise von 1:2 bis 1:2,8 und insbesondere von 1:2 bis 1:2,6, welche vorzugsweise löseverzögert sind und Sekundärwascheigenschaften aufweisen. In bevorzugten Mitteln wird der Gehalt an Silikaten, bezogen auf das Gesamtgewicht des Geschirrspülmittels, auf Mengen unterhalb 10 Gew.-%, vorzugsweise unterhalb 5 Gew.-% und insbesondere unterhalb 2 Gew.-% begrenzt. Besonders bevorzugte Mittel sind Silikat-frei.As a builder, the agents can also be crystalline layered silicates of the general formula NaMSi x O 2x+i · y H 2 O, in which M represents sodium or hydrogen, particularly preferred values for x are 2, 3 or 4, and y is a number from 0 to 33, preferably from 0 to 20. Amorphous sodium silicates with a modulus Na 2 O:SiO 2 of 1:2 to 1:3.3, preferably from 1:2 to 1:2.8 and in particular from 1:2 to 1:2.6, which can also be used preferably have delayed dissolution and have secondary washing properties. In preferred agents, the silicate content, based on the total weight of the dishwashing detergent, is limited to amounts below 10% by weight, preferably below 5% by weight and in particular below 2% by weight. Particularly preferred agents are silicate-free.
Als Parfümöle bzw. Duftstoffe können im Rahmen der vorliegenden Erfindung einzelne Riechstoffverbindungen, z.B. die synthetischen Produkte vom Typ der Ester, Ether, Aldehyde, Ketone, Alkohole und Kohlenwasserstoffe verwendet werden. Bevorzugt werden jedoch Mischungen verschiedener Riechstoffe verwendet, die gemeinsam eine ansprechende Duftnote erzeugen. Solche Parfümöle können auch natürliche Riechstoffgemische enthalten, wie sie aus pflanzlichen Quellen zugänglich sind, z.B. Pinien-, Citrus-, Jasmin-, Patchouli-, Rosen- oder Ylang-Ylang-Öl.In the context of the present invention, individual fragrance compounds, for example synthetic products of the ester, ether, aldehyde, ketone, alcohol and hydrocarbon type, can be used as perfume oils or fragrances. However, mixtures of different fragrances are preferably used, which together produce an appealing scent. Such perfume oils can also contain natural fragrance mixtures such as those available from plant sources, for example pine, citrus, jasmine, patchouli, rose or ylang-ylang oil.
Die Konfektionierung hierin beschriebener Pflegemittel kann in unterschiedlicher Wiese erfolgen. Die Mittel können in fester oder flüssiger sowie als Kombination fester und flüssiger Angebotsformen vorliegen. Als feste Angebotsformen eignen sich insbesondere Pulver, Granulate, Extrudate, Kompaktate, insbesondere Tabletten. Die flüssigen Angebotsformen auf Basis von Wasser und/oder organischen Lösungsmitteln können verdickt, in Form von Gelen vorliegen.The care products described here can be manufactured in different ways. The funds can be in solid or liquid form or as a combination of solid and liquid forms. Powders, granules, extrudates, compacts, in particular tablets, are particularly suitable as solid forms. The liquid forms based on water and/or organic solvents can be thickened and in the form of gels.
In bevorzugten Ausführungsformen liegt das Pflegemittel in einer festen Angebotsform vor. "Fest" bedeutet in diesem Zusammenhang, dass die Zusammensetzung bei Standardbedingungen (Temperatur 25°C, Druck 1013 mbar) in fester Form vorliegt. In verschiedenen Ausführungsformen liegt das mindestens eine Tensid und/oder die mindestens eine Säure bzw. das Puffersystem bei 25°C (Druck 1013 mbar) im festen Zustand, beispielsweise als Pulver oder Granulat, vor und mindert - verarbeitet mit den weiteren Bestandteilen des festen Pflegemittels - nicht die Rieselfähigkeit des produzierten Pflegemittels und kann daher in beliebigen Mengen eingearbeitet werden.In preferred embodiments, the care product is available in a fixed form. “Solid” in this context means that the composition is in solid form under standard conditions (temperature 25 ° C, pressure 1013 mbar). In various embodiments, the at least one surfactant and/or the at least one acid or the buffer system is present at 25° C. (pressure 1013 mbar) in the solid state, for example as a powder or granulate, and reduced - processed with the other components of the solid care product - does not affect the flowability of the care product produced and can therefore be incorporated in any quantity.
Die hierin beschriebenen Mittel werden vorzugsweise zu Dosiereinheiten vorkonfektioniert. Diese Dosiereinheiten umfassen vorzugsweise die für einen Reinigungsgang notwendige Menge an wasch- oder reinigungsaktiven Substanzen. Bevorzugte Dosiereinheiten weisen ein Gewicht zwischen 10 und 50 g, bevorzugt zwischen 20 und 30 g und insbesondere 25 g auf. Um ein optimales Reinigungsergebnis zu erzielen, werden solche Mittel bevorzugt, die in Form einer vorgefertigten Dosiereinheit vorliegen. Das Volumen der vorgenannten Dosiereinheiten sowie deren Raumform können so gewählt sein, dass die Dosierbarkeit der vorkonfektionierten Einheiten nicht über die Dosierkammer einer Geschirrspülmaschine erfolgen kann, sondern die Einheit direkt in den Innenraum der Geschirrspülmaschine gegeben werden muss.The agents described herein are preferably pre-assembled into dosage units. These dosing units preferably include the amount of washing or cleaning-active substances necessary for a cleaning cycle. Preferred dosage units have a weight of between 10 and 50 g, preferably between 20 and 30 g and in particular 25 g. In order to achieve an optimal cleaning result, preference is given to agents that are in the form of a prefabricated dosing unit. The volume of the aforementioned dosing units and their spatial shape can be selected such that the pre-assembled units cannot be dosed via the dosing chamber of a dishwasher, but rather the unit must be placed directly into the interior of the dishwasher.
Die hierin beschriebenen Mittel und Zusammensetzungen weisen eine wasserlösliche Umhüllung auf. Besonders bevorzugt werden die vorgefertigten Dosiereinheiten durch eine wasserlösliche Umhüllung einer entsprechenden Portionsmenge an erfindungsgemäßer Zusammensetzung gebildet, die vorgefertigte Dosiereinheit umfasst also bevorzugt ein erfindungsgemäßes Mittel sowie eine wasserlösliche Umhüllung/Verpackung.The agents and compositions described herein have a water-soluble coating. The prefabricated dosage units are particularly preferably formed by a water-soluble coating of a corresponding portion of the composition according to the invention, so the prefabricated dosage unit preferably comprises an agent according to the invention and a water-soluble coating/packaging.
Die wasserlösliche Umhüllung wird vorzugsweise aus einem wasserlöslichen Folienmaterial, welches ausgewählt ist aus der Gruppe, bestehend aus Polymeren oder Polymergemischen, gebildet. Die Umhüllung kann aus einer oder aus zwei oder mehr Lagen aus dem wasserlöslichen Folienmaterial gebildet werden. Das wasserlösliche Folienmaterial der ersten Lage und der weiteren Lagen, falls vorhanden, kann gleich oder unterschiedlich sein. Besonders bevorzugt sind Folien, die beispielsweise zu Verpackungen wie Schläuchen oder Kissen verklebt und/oder versiegelt werden können, nachdem sie mit einem Mittel befüllt wurden.The water-soluble covering is preferably formed from a water-soluble film material selected from the group consisting of polymers or polymer mixtures. The wrapping may be formed from one or two or more layers of the water-soluble film material. The water-soluble film material of the first layer and the additional layers, if present, can be the same or different. Films that can be glued and/or sealed to form packaging such as tubes or pillows after they have been filled with an agent are particularly preferred.
Bei den wasserlöslichen Umhüllungen/Verpackungen handelt es sich vorzugsweise um Tiefziehkörper oder Spritzgußkörper.The water-soluble casings/packaging are preferably deep-drawn bodies or injection-molded bodies.
Die wasserlöslichen Behälter/Umhüllungen/Verpackungen können auch durch Spritzgießen hergestellt werden. Spritzgießen bezeichnet dabei das Umformen einer Formmasse derart, daß die in einem Massezylinder für mehr als einen Spritzgießvorgang enthaltene Masse unter Wärmeeinwirkung plastisch erweicht und unter Druck durch eine Düse in den Hohlraum eines vorher geschlossenen Werkzeuges einfließt. Das Verfahren wird hauptsächlich bei nichthärtbaren Formmassen angewendet, die im Werkzeug durch Abkühlen erstarren. Der Spritzguß ist ein sehr wirtschaftliches modernes Verfahren zur Herstellung spanlos geformter Gegenstände und eignet sich besonders für die automatisierte Massenfertigung. Im praktischen Betrieb erwärmt man die thermoplastische Formmassen (Pulver, Körner, Würfel, Pasten u. a.) bis zur Verflüssigung (bis 180 °C) und spritzt sie dann unter hohem Druck (bis 140 MPa) in geschlossene, zweiteilige, das heißt aus Gesenk (früher Matrize) und Kern (früher Patrize) bestehende, vorzugsweise wassergekühlte Hohlformen, wo sie abkühlen und erstarren. Einsetzbar sind Kolben- und Schneckenspritzgußmaschinen.The water-soluble containers/wraps/packaging can also be manufactured by injection molding. Injection molding refers to the reshaping of a molding compound in such a way that the mass contained in a compound cylinder for more than one injection molding process softens plastically under the influence of heat and flows under pressure through a nozzle into the cavity of a previously closed tool. The process is mainly used for non-curable molding compounds that solidify in the mold when cooled. Injection molding is a very economical, modern process for producing non-cutting shaped objects and is particularly suitable for automated mass production. In practical operation, the thermoplastic molding materials (powders, grains, cubes, pastes, etc.) are heated until they liquefy (up to 180 °C) and are then injected under high pressure (up to 140 MPa) into closed, two-part dies (formerly Die) and core (formerly male) existing, preferably water-cooled, hollow molds, where they cool and solidify. Piston and screw injection molding machines can be used.
Solche Formkörper können ebenfalls ein, zwei, drei oder mehrere Kammern aufweisen und mit flüssigen und/oder festen Zusammensetzungen befüllt sein, von denen eine der Zusammensetzungen eine der erfindungsgemäßen Zusammensetzungen ist. Es ist beispielsweise möglich, die Kammern auf der offenen Seite entweder mit einem zweiten Formgußkörper oder mit einer oder mehreren wasserlöslichen Folien (insbesondere wie hierin beschrieben) zu verschließen., So die Freisetzung der in den Kammern befindlichen Zusammensetzungen beliebig nach dem gewünschten Freisetzungszeitpunkt gesteuert werden, entweder kann alles auf einmal (entweder direkt zu Beginn des Reinigungszyklus oder zu einem bestimmten Zeitpunkt im Verlauf des Reinigungszyklus) oder durch eine Variation der Folienzusammensetzung zu bestimmten, von einander verschiedenen Zeitpunkten innerhalb des Zyklus der Geschirrspülmaschine (beispielsweise in Abhängigkeit von der Temperatur des Spülwassers) freigesetzt werden.Such shaped bodies can also have one, two, three or more chambers and be filled with liquid and/or solid compositions, one of which is one of the compositions according to the invention. It is, for example, possible to close the chambers on the open side either with a second molded body or with one or more water-soluble films (in particular as described herein). So the release of the compositions in the chambers can be controlled as desired according to the desired release time, either everything can be done at once (either directly at the beginning of the cleaning cycle or at a certain point in the course of the cleaning cycle) or by varying the film composition at certain, different points in time within the dishwasher cycle (for example depending on the temperature of the washing water) be released.
Es ist bevorzugt, dass die wasserlösliche Umhüllung Polyvinylalkohol oder ein Polyvinylalkoholcopolymer enthält. Wasserlösliche Umhüllungen, die Polyvinylalkohol oder ein Polyvinylalkoholcopolymer enthalten, weisen eine gute Stabilität bei einer ausreichend hohen Wasserlöslichkeit, insbesondere Kaltwasserlöslichkeit, auf.It is preferred that the water-soluble coating contains polyvinyl alcohol or a polyvinyl alcohol copolymer. Water-soluble coatings that contain polyvinyl alcohol or a polyvinyl alcohol copolymer have good stability with a sufficiently high water solubility, in particular cold water solubility.
Geeignete wasserlösliche Folien zur Herstellung der wasserlöslichen Umhüllung basieren bevorzugt auf einem Polyvinylalkohol oder einem Polyvinylalkoholcopolymer, dessen Molekulargewicht im Bereich von 10.000 bis 1.000.000 gmol-1, vorzugsweise von 20.000 bis 500.000 gmol-1, besonders bevorzugt von 30.000 bis 100.000 gmol-1 und insbesondere von 40.000 bis 80.000 gmol-1 liegt.Suitable water-soluble films for producing the water-soluble coating are preferably based on a polyvinyl alcohol or a polyvinyl alcohol copolymer, the molecular weight of which is in the range from 10,000 to 1,000,000 gmol -1 , preferably from 20,000 to 500,000 gmol -1 , particularly preferably from 30,000 to 100,000 gmol -1 and in particular from 40,000 to 80,000 gmol -1 .
Die Herstellung von Polyvinylalkohol geschieht üblicherweise durch Hydrolyse von Polyvinylacetat, da der direkte Syntheseweg nicht möglich ist. Ähnliches gilt für Polyvinylalkoholcopolymere, die aus entsprechend aus Polyvinylacetatcopolymeren hergestellt werden. Bevorzugt ist, wenn wenigstens eine Lage der wasserlöslichen Umhüllung einen Polyvinylalkohol umfasst, dessen Hydrolysegrad 70 bis 100 Mol-%, vorzugsweise 80 bis 90 Mol-%, besonders bevorzugt 81 bis 89 Mol-% und insbesondere 82 bis 88 Mol-% ausmacht.Polyvinyl alcohol is usually produced by hydrolysis of polyvinyl acetate, as the direct synthesis route is not possible. The same applies to polyvinyl alcohol copolymers, which are made from polyvinyl acetate copolymers. It is preferred if at least one layer of the water-soluble coating comprises a polyvinyl alcohol, the degree of hydrolysis of which is 70 to 100 mol%, preferably 80 to 90 mol%, particularly preferably 81 to 89 mol% and in particular 82 to 88 mol%.
Einem zur Herstellung der wasserlöslichen Umhüllung geeignetem Polyvinylalkohol-enthaltendem Folienmaterial kann zusätzlich ein Polymer ausgewählt aus der Gruppe umfassend (Meth)Acrylsäure-haltige (Co)Polymere, Polyacrylamide, Oxazolin-Polymere, Polystyrolsulfonate, Polyurethane, Polyester, Polyether, Polymilchsäure oder Mischungen der vorstehenden Polymere zugesetzt sein. Ein bevorzugtes zusätzliches Polymer sind Polymilchsäuren.A polyvinyl alcohol-containing film material suitable for producing the water-soluble coating can additionally contain a polymer selected from the group comprising (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.
Bevorzugte Polyvinylalkoholcopolymere umfassen neben Vinylalkohol Dicarbonsäuren als weitere Monomere. Geeignete Dicarbonsäuren sind Itaconsäure, Malonsäure, Bernsteinsäure und Mischungen daraus, wobei Itaconsäure bevorzugt ist.In addition to vinyl alcohol, preferred polyvinyl alcohol copolymers include dicarboxylic acids as further monomers. Suitable dicarboxylic acids are itaconic acid, malonic acid, succinic acid and mixtures thereof, with itaconic acid being preferred.
Ebenfalls bevorzugte Polyvinylalkoholcopolymere umfassen neben Vinylalkohol eine ethylenisch ungesättige Carbonsäure, deren Salz oder deren Ester. Besonders bevorzugt enthalten solche Polyvinylalkoholcopolymere neben Vinylalkohol Acrylsäure, Methacrylsäure, Acrylsäureester, Methacrylsäureester oder Mischungen daraus.In addition to vinyl alcohol, also preferred polyvinyl alcohol copolymers include an ethylenically unsaturated carboxylic acid, its salt or its ester. In addition to vinyl alcohol, such polyvinyl alcohol copolymers particularly preferably contain acrylic acid, methacrylic acid, acrylic acid esters, methacrylic acid esters or mixtures thereof.
Es kann bevorzugt sein, dass das Folienmaterial weitere Zusatzstoffe enthält. Das Folienmaterial kann beispielsweise Weichmacher wie Dipropylenglycol, Ethylenglycol, Diethylenglycol, Propylenglycol, Glycerin, Sorbitol, Mannitol oder Mischungen daraus enthalten. Weitere Zusatzstoffe umfassen beispielsweise Freisetzungshilfen, Füllmittel, Vernetzungsmittel, Tenside, Antioxidationsmittel, UV-Absorber, Antiblockmittel, Antiklebemittel oder Mischungen daraus.It may be preferred that the film material contains further additives. The film material can, for example, contain plasticizers such as dipropylene glycol, ethylene glycol, diethylene glycol, propylene glycol, glycerin, sorbitol, mannitol or mixtures thereof. Other additives include, for example, release aids, fillers, crosslinking agents, surfactants, antioxidants, UV absorbers, anti-blocking agents, anti-adhesive agents or mixtures thereof.
Geeignete wasserlösliche Folien zum Einsatz in den wasserlöslichen Umhüllungen der wasserlöslichen Verpackungen gemäß der Erfindung sind Folien, die von der Firma MonoSol LLC beispielsweise unter der Bezeichnung M8630, C8400 oder M8900 vertrieben werden. Andere geeignete Folien umfassen Folien mit der Bezeichnung Solublon® PT, Solublon® GA, Solublon® KC oder Solublon® KL von der Aicello Chemical Europe GmbH oder die Folien VF-HP von Kuraray.Suitable water-soluble films for use in the water-soluble wrappings of the water-soluble packaging according to the invention are films sold by MonoSol LLC, for example under the names M8630, C8400 or M8900. Other suitable films include films called Solublon® PT, Solublon® GA, Solublon® KC or Solublon® KL from Aicello Chemical Europe GmbH or the VF-HP films from Kuraray.
Die Verwendung des erfindungsgemäßen Pflegemittels in einer wasserlöslichen Umhüllung hat den Vorteil, dass im Gegensatz zu den verkehrsüblichen Flaschen, welche mit einem Wachssiegel verschlossen sind, welches sich erst bei hohen Wassertemperaturen löst, die vorproportionierten Dosiereinheiten bereits bei niedrigeren Temperaturen und daher ggf. auch frühzeitiger im Ablauf des Reinigungsverfahren bzw. im Spülgang freigesetzt werden können. Auch nimmt eine solchermaßen vorproportionierte Dosiereinheit in der Regel weniger Platz als eine der bisher genutzten verkehrsüblichen Flaschen in Anspruch, die entweder in die Maschine eingehängt oder im Besteckkorb platziert werden müssen. Sie kann darüber hinaus an jeder beliebigen Stelle im inneren der Spülmaschine platziert werden.The use of the care product according to the invention in a water-soluble coating has the advantage that, in contrast to the usual bottles, which are closed with a wax seal, which only dissolves at high water temperatures, the pre-proportioned dosage units can be used at lower temperatures and therefore possibly earlier during the cleaning process or during the rinsing cycle. A dosing unit pre-proportioned in this way usually takes up less space than one of the standard bottles previously used, which either have to be hung in the machine or placed in the cutlery basket. It can also be placed anywhere inside the dishwasher.
In den erfindungsgemäßen ein Verfahren kann das erfindungsgemäße Pflegemittel vor oder während des Durchlaufens eines Geschirrspülprogramms (in Anwesenheit von zu reinigendem Spülgut, insbesondere schmutzigem Geschirr) entweder vor Beginn des Hauptspülgangs oder im Verlaufe des Hauptspülgangs in den Innenraum einer Geschirrspülmaschine eindosiert werden. Die Eindosierung bzw. der Eintrag des erfindungsgemäßen Mittels in den Innenraum der Geschirrspülmaschine kann manuell erfolgen. In verschiedenen Ausführungsformen wird das Pflegemittel direkt zu Beginn des Reinigungszyklus, vorzugsweise vor dem maschinellen Geschirrspülmittel, in den Innenraum der automatischen Geschirrspülmaschine dosiert. Bevorzugt erfolgt die Eindosierung des Pflegemittels in den Innenraum der Geschirrspülmaschine vor oder zu Beginn des Spülzyklus und vor der Eindosierung des maschinellen Geschirrspülmittels über die Dosierkammer zu Beginn des Hauptspülgangs.In the method according to the invention, the care product according to the invention can be used before or during Running through a dishwashing program (in the presence of items to be cleaned, in particular dirty dishes) either before the start of the main wash cycle or during the main wash cycle, they are metered into the interior of a dishwasher. The dosage or entry of the agent according to the invention into the interior of the dishwasher can be done manually. In various embodiments, the care product is dosed into the interior of the automatic dishwasher directly at the beginning of the cleaning cycle, preferably before the automatic dishwasher detergent. The care product is preferably dosed into the interior of the dishwasher before or at the beginning of the washing cycle and before the machine dishwashing detergent is dosed via the dosing chamber at the start of the main wash cycle.
Das erfindungsgemäße Verfahren mit einem erfindungsgemäßen Pflegemittel kann bei allen handelsüblichen Geschirrspülmaschinen, insbesondere Haushaltsgeschirrspülmaschinen, möglichen Programmen angewendet werden. In bevorzugten Verfahren werden aber Niedertemperatur-Geschirrspülprogramme verwendet. Diese werden im Haushalt zur Geschirrreinigung eingesetzt, um Energie zu sparen. Solche Programme haben in der Regel Nenn-Spültemperaturen von üblicherweise 45 bis 55°C.The method according to the invention with a care product according to the invention can be used in all commercially available dishwashers, in particular household dishwashers, possible programs. However, preferred processes use low-temperature dishwashing programs. These are used in the household to clean dishes in order to save energy. Such programs usually have nominal washing temperatures of usually 45 to 55°C.
In einer bevorzugten Ausführungsform des erfindungsgemäßen Verfahrens wird das Verfahren dadurch gekennzeichnet, dass in seinem Verlauf die Temperatur der Reinigungsflotte im Hauptspülgang auf Werte kleiner 70°C, vorzugsweise kleiner 60°C und bevorzugt auf Temperaturen zwischen 30 und 58°C, bevorzugt auf Temperaturen zwischen etwa 40 und etwa 55°C ansteigt.In a preferred embodiment of the method according to the invention, the method is characterized in that during its course the temperature of the cleaning liquor in the main wash cycle is reduced to values of less than 70 ° C, preferably less than 60 ° C and preferably to temperatures between 30 and 58 ° C, preferably to temperatures between around 40 and around 55°C.
Es wurde die folgende Formulierung aufgemischt:
In einem Versuch zur Ermittlung der Reinigungsleistung gemäß IKW-Methode (Miele 698, 50°C, 3 min. Haltezeit, 21° dH) wurden zu jedem Lauf zusätzlich zum herkömmlichen Reiniger (Somat 7) 21 g der Formulierung unmittelbar vor dem Starten des Programms auf den Maschinenboden dosiert. Ein Vergleichsversuch wurde identisch, jedoch ohne den Zusatz der Formulierung, durchgeführt.In an experiment to determine the cleaning performance according to the IKW method (Miele 698, 50°C, 3 min. holding time, 21° dH), 21 g of the formulation were added to each run in addition to the conventional cleaner (Somat 7) immediately before starting the program dosed onto the bottom of the machine. A comparative test was carried out identically, but without the addition of the formulation.
Als signifikante Unterschiede in der Reinigungsleistung werden bei einer Differenz von mehr als einer Einheit angesehen. Die folgenden Reinigungsleistungen wurden ermittelt:
Alle getesteten Anschmutzungen zeigen keine signifikanten Einbußen in der Reinigungsleistung. Insbesondere bleiben die bleichbaren Anschmutzungen (Tee) sowie die amylasesensitiven Anschmutzungen (Spaghetti, Stärke) auf dem ursprünglichen Leistungsniveau.All soiling tested showed no significant loss in cleaning performance. In particular, bleachable stains (tea) and amylase-sensitive stains (spaghetti, starch) remain at the original performance level.
Rezepturen E2 und E3 wurden aufgemischt und der pH-Wert einer 10%-igen Lösung in destilliertem Wasser bestimmt:
- E2: (Wasser) pH 5,78
- E3: (Wasser) pH 4,96
- E2: (water) pH 5.78
- E3: (Water) pH 4.96
Rezeptur E4 wurde analog untersucht, zusätzlich wurden 21 g der Formulierung auf den Boden des mit einem Somat 7-Tab (Henkel) im Dosierfach beladenen Geschirrspüler-Innenraums gegeben und der pH-Wert der Spülflotte unmittelbar nach Auflösen der Maschinenreiniger-Formel im Spülwasser gemessen, und später der pH-Wert der Spülflotte nach Auflösen des Somat 7-Tabs. 10%ig: pH 5,2
direkt nach Auflösen: pH 6,06
nach Auflösen des Tabs: pH 8,83Recipe E4 was examined analogously; in addition, 21 g of the formulation were placed on the bottom of the dishwasher interior loaded with a Somat 7-Tab (Henkel) in the dosing compartment and the pH value of the washing liquor was measured immediately after the machine cleaner formula had dissolved in the washing water, and later the pH value of the rinsing liquor after dissolving the Somat 7 tab. 10%: pH 5.2
immediately after dissolving: pH 6.06
after dissolving the tab: pH 8.83
Um die Leistung eines Pflegemittels gegen Fett zu ermitteln, wurde der Filter der automatischen Geschirrspülmaschine zunächst mit Fett angeschmutzt, um dann in dieser angeschmutzten Maschine die Leistung des Pflegemittels zu bestimmen:
- Maschine: Bosch SMS 86M12
- Fettanschmutzung: 5g Butter + 5g Margarine
- Produkt: Ein handelsüblicher Maschinengeschirrspülreiniger, der in weniger als 10 Zyklen den gewünschten Fettaufbau zulässt. Geeignet sind beispielsweise Formulierungen mit ausreichender Menge Trocknungstensid.
- Machine: Bosch SMS 86M12
- Grease contamination: 5g butter + 5g margarine
- Product: A commercially available machine dishwashing cleaner that allows the desired grease buildup in less than 10 cycles. For example, formulations with a sufficient amount of drying surfactant are suitable.
Vor dem Durchgang wird der Filter (zweiteilig) trocken gewogen. Die Fettanschmutzung wird direkt in den oberen Korb der Maschine gegeben, und der Geschirr-Reiniger im Dosierfach platziert. Dann wird ein Zyklus mit dem "Glas 40°C" Programm laufen gelassen. Anschließend entnimmt man den Filter, lässt das restliche Wasser 30 min abtropfen und bestimmt mittels einer Wage die aufgebaute Fettmenge. Der Vorgang wird wiederholt, bis eine Fettmasse von ca. 10 g aufgebaut ist.Before passing through, the filter (two parts) is weighed dry. The grease is placed directly in the upper basket of the machine and the dish cleaner is placed in the dosing compartment. A cycle is then run with the “Glass 40°C” program. You then remove the filter, let the remaining water drain for 30 minutes and use a scale to determine the amount of fat built up. The process is repeated until a fat mass of approx. 10 g is built up.
Dann setzt man den angeschmutzten Filter wieder in die Maschine ein, gibt den Geschirr-Reiniger in die Dosierkammer und die zu testende Pflegemittel-Rezeptur auf den Boden des Spülraums und lässt ein "Glas 40°C" Programm laufen. Anschließend wird der Filter wieder entnommen und nach 30 min Abtropfen gewogen. So wird die durch das Produkt entfernte Fettmenge bestimmt und die noch verbleibende Restfettmenge wird in % der ursprünglichen Fettmenge angegeben.Then you put the dirty filter back into the machine, put the dish cleaner in the dosing chamber and the care product formulation to be tested on the floor of the washing compartment and run a "Glass 40°C" program. The filter is then removed again and weighed after draining for 30 minutes. This determines the amount of fat removed by the product and the amount of fat remaining is given as a percentage of the original amount of fat.
Die Formulierung E4 (21 g) wurde mit unterschiedlichen handelsüblichen Geschirrspülmitteln getestet. Die verbleibende Fettmenge mit Pflegemittel war dabei um 23 - 32 % geringer als die verbleibende Fettmenge ohne das Pflegemittel.The E4 formulation (21 g) was tested with various commercially available dishwashing detergents. The remaining amount of fat with the care product was 23 - 32% lower than the remaining amount of fat without the care product.
Marmorplatten mit der Größe von ca. 15cm * 7,5cm und eine Dicke von ca. 0,5cm werden unter bestimmten Bedingungen in einer Geschirrspülmaschine gespült. Anschließend wird der Abtrag, das Kalklösevermögen mittels Rückwägung bestimmt. Geeignete Platten können z.B. bezogen werden von Naturstein Kohlenberg in Düsseldorf, Deutschland als IPP Testplatten aus Bianco Carrara "CD" Marmor im Format 150 / 75 / 5 mm. Die Marmorplatten werden von grobem Schmutz und Staub mit Hilfe eines trockenen Tuches befreit. Anschließend werden sie mit Ethanol abgespült und nochmals mit einem trockenen, sauberen Tuch abgewischt, danach trocknen sie ca. 5min an der Luft. Nun werden die Platten durch Gravur gekennzeichnet und auf einer Analysenwaage gewogen.Marble slabs with a size of approx. 15cm * 7.5cm and a thickness of approx. 0.5cm are washed in a dishwasher under certain conditions. The removal and the lime-dissolving capacity are then determined by reweighing. Suitable slabs can be obtained, for example, from Naturstein Kohlenberg in Düsseldorf, Germany as IPP test slabs made of Bianco Carrara "CD" marble in the format 150 / 75 / 5 mm. The marble slabs are removed from coarse dirt and dust using a dry cloth. They are then rinsed with ethanol and wiped again with a dry, clean cloth, then left to air dry for about 5 minutes. The plates are now marked by engraving and weighed on an analytical balance.
Es werden jeweils drei Marmorplatten in den oberen Spülkorb der Spülmaschine platziert. Der zu prüfende Maschinenreiniger wird auf den Boden des Spülraums gegeben und das Spülprogramm (50°C) gestartet. Nach Ende des Programms werden die Marmorplatten bei 105°C im Trockenschrank 2 Std. getrocknet. Nach vollständiger Abkühlung wird das Kalklösevermögen des Maschinenreinigers mittels Rückwägung bestimmt.Three marble slabs are placed in the top rack of the dishwasher. The machine cleaner to be tested is placed on the floor of the washing compartment and the washing program (50°C) is started. At the end of the program, the marble slabs are dried in a drying cabinet at 105°C for 2 hours. After complete cooling, the lime-dissolving ability of the machine cleaner is determined by reweighing.
Folgende Formulierungen wurden getestet:
Claims (10)
- A method for the cleaning and/or maintenance of an automatic dishwasher, characterized in that, in a normal cleaning cycle for cleaning items to be washed, in particular dirty dishes, a maintenance product for automatic dishwashers is metered in together with an automatic dishwashing detergent, which maintenance product is formulated separately from the dishwashing detergent, the maintenance product having (a) at least one non-ionic surfactant, preferably a fatty alcohol alkoxylate, and (b) at least one acid or a buffer system consisting of at least one acid and at least one base, and a solution of 10 wt.% of the maintenance product in water at 20 °C having a pH of <6.5, preferably <6.0, even more preferably 5.0-5.6, the maintenance product being in a water-soluble packaging, in particular in a film containing polyvinyl alcohol andwherein at least one non-ionic surfactant is a fatty alcohol ethoxylate of formula (I),
R1-O-(EO)m-H (I),
whereR1 is a linear or branched, substituted or unsubstituted alkyl group having 12 to 24 C atoms;EO is an ethylene oxide unit; andm is 10 to 50. - The method according to claim 1, characterized in that at least one non-ionic surfactant is a fatty alcohol ethoxylate of formula (I),
R1-O-(EO)m-H (I),
whereR1 is a linear or branched, substituted or unsubstituted alkyl group having 14 to 20, in particular 16 to 18 C atoms;EO is an ethylene oxide unit; andm is 20 to 30, preferably 22 to 27, in particular 25. - The method according to claim 1 or 2, characterized in that the at least one non-ionic surfactant is contained in an amount of from 1 to 40 wt.%, preferably 2 to 20 wt.%, particularly preferably 5 to 15 wt.%, based on the maintenance product, and the absolute amount of the at least one non-ionic surfactant in the composition is from 0.1 to 4 g/job, preferably 1 to 3 g/job, particularly preferably 1.5 to 2.5 g/job, for example 2 g/job.
- The method according to one of claims 1 to 3, characterized in that (a) the at least one acid is an organic acid, in particular citric acid, or (b) the buffer system consists of at least one organic acid, in particular citric acid, and the corresponding base, in particular citrate.
- The method according to one of claims 1 to 4, characterized in that the at least one acid or the buffer system consisting of at least one acid and at least one base is contained in an amount of from 1 to 80 wt.%, preferably 5 to 60 wt.%, particularly preferably 20 to 45 wt.%, based on the maintenance product, and the absolute amount of the at least one acid or of the buffer system in the composition is from 0.2 to 16 g/job, preferably 3 to 10 g/job, particularly preferably 4 to 9 g/job, for example 7 to 8 g/job.
- The method according to one of claims 1 to 5, characterized in that the maintenance product(a) is in solid form; and/or(b) is in pre-portioned form; and/or(c) is used in an amount of from 10 to 50 g/job, in particular 20-25 g/job.
- The method according to one of claims 1 to 6, characterized in that the maintenance product is phosphate-free and/or phosphonate-free.
- The method according to one of claims 1 to 7, characterized in that the maintenance product/composition comprises at least one additional component selected from the group consisting of additional builders, additional surfactants, polymers, enzymes, corrosion inhibitors, glass corrosion inhibitors, disintegration aids, fragrances and perfume carriers.
- The method according to one of claims 1 to 8, characterized in that the maintenance product lowers the pH of the rinsing liquor, preferably by up to a maximum of 2 units, more preferably to a pH in the range of from greater than 7 to less than the pH of the rinsing liquor in the absence of the maintenance product, most preferably to a pH in the range of from greater than 8 to less than the pH of the rinsing liquor in the absence of the maintenance product.
- The method according to one of claims 1 to 9, characterized in that the maintenance product is metered into the interior of the automatic dishwasher at the beginning of the cleaning cycle, preferably before the automatic dishwashing detergent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL16770918.7T PL3353273T5 (en) | 2015-09-25 | 2016-09-21 | Method for the care and cleaning of an automatic dishwasher |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102015218475.7A DE102015218475A1 (en) | 2015-09-25 | 2015-09-25 | Process for the care and cleaning of an automatic dishwashing machine |
| PCT/EP2016/072357 WO2017050796A1 (en) | 2015-09-25 | 2016-09-21 | Method for the care and cleaning of an automatic dishwasher |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP3353273A1 EP3353273A1 (en) | 2018-08-01 |
| EP3353273B1 EP3353273B1 (en) | 2021-02-24 |
| EP3353273B2 true EP3353273B2 (en) | 2023-12-06 |
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| US (1) | US20180208878A1 (en) |
| EP (1) | EP3353273B2 (en) |
| DE (1) | DE102015218475A1 (en) |
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| PL (1) | PL3353273T5 (en) |
| WO (1) | WO2017050796A1 (en) |
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| KR102448861B1 (en) * | 2016-01-05 | 2022-09-30 | 엘지전자 주식회사 | Dish washer and controlling method thereof |
| DE102018222240A1 (en) * | 2018-12-19 | 2020-06-25 | Henkel Ag & Co. Kgaa | Serving detergent for automatic dishwashers |
| DE102019220459A1 (en) * | 2019-12-20 | 2021-06-24 | Henkel Ag & Co. Kgaa | Method for cleaning and maintaining an automatic dishwasher |
| DE102019220460A1 (en) * | 2019-12-20 | 2021-06-24 | Henkel Ag & Co. Kgaa | Method for cleaning and maintaining an automatic dishwasher |
| DE102019220454A1 (en) * | 2019-12-20 | 2021-06-24 | Henkel Ag & Co. Kgaa | Method for cleaning and maintaining an automatic dishwasher |
| DE102020216106A1 (en) * | 2020-12-17 | 2022-06-23 | Henkel Ag & Co. Kgaa | Method of cleaning and maintaining an automatic dishwashing machine |
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| WO2007068920A1 (en) † | 2005-12-13 | 2007-06-21 | Reckitt Benckiser N.V. | Method and composition |
| EP2333042A1 (en) † | 2009-12-10 | 2011-06-15 | The Procter & Gamble Company | Automatic dishwashing product and use thereof |
| US20150252301A1 (en) † | 2005-11-25 | 2015-09-10 | Reckitt Benckiser N.V. | Composition and method |
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| EP0256148A1 (en) | 1986-08-12 | 1988-02-24 | Joh. A. Benckiser GmbH | Liquid, granulated or powdery detergent, in particular for dish-washing machines |
| DE19963569B4 (en) | 1999-12-29 | 2006-11-16 | Reckitt Benckiser N.V. | Composition for use in a dishwasher |
| GB0004130D0 (en) | 2000-02-23 | 2000-04-12 | Procter & Gamble | Detergent tablet |
| DE20022229U1 (en) * | 2000-07-07 | 2001-07-12 | Henkel Kgaa | Dishwasher detergent with additional benefits |
| FR2831181A1 (en) * | 2001-10-23 | 2003-04-25 | Rhodia Polyamide Intermediates | Scale inhibitor composition in tablet form for prewashing dishes in automatic dishwashers |
| US6750186B2 (en) * | 2002-02-04 | 2004-06-15 | Robert Black | Composition and method for cleaning dishwashers |
| EP1679363B1 (en) * | 2005-01-10 | 2008-07-09 | The Procter and Gamble Company | Cleaning composition for washing-up or washing machine |
| DE202009009335U1 (en) | 2009-07-07 | 2009-10-01 | Thurn-Produkte Gmbh & Co. Kg | container |
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2015
- 2015-09-25 DE DE102015218475.7A patent/DE102015218475A1/en not_active Withdrawn
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2018
- 2018-03-21 US US15/927,265 patent/US20180208878A1/en not_active Abandoned
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|---|---|---|---|---|
| US20150252301A1 (en) † | 2005-11-25 | 2015-09-10 | Reckitt Benckiser N.V. | Composition and method |
| WO2007068920A1 (en) † | 2005-12-13 | 2007-06-21 | Reckitt Benckiser N.V. | Method and composition |
| EP2333042A1 (en) † | 2009-12-10 | 2011-06-15 | The Procter & Gamble Company | Automatic dishwashing product and use thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102015218475A1 (en) | 2017-03-30 |
| PL3353273T3 (en) | 2021-08-02 |
| EP3353273B1 (en) | 2021-02-24 |
| WO2017050796A1 (en) | 2017-03-30 |
| US20180208878A1 (en) | 2018-07-26 |
| ES2860723T3 (en) | 2021-10-05 |
| EP3353273A1 (en) | 2018-08-01 |
| PL3353273T5 (en) | 2024-02-26 |
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