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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• Wood Science & Technology (AREA)
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• Health & Medical Sciences (AREA)
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• 2015
  • 2015-09-25 DE DE102015218475.7A patent/DE102015218475A1/de not_active Withdrawn
• 2016
  • 2016-09-21 EP EP16770918.7A patent/EP3353273B2/de active Active
  • 2016-09-21 PL PL16770918.7T patent/PL3353273T5/pl unknown
  • 2016-09-21 ES ES16770918T patent/ES2860723T5/es active Active
  • 2016-09-21 WO PCT/EP2016/072357 patent/WO2017050796A1/de not_active Ceased
• 2018
  • 2018-03-21 US US15/927,265 patent/US20180208878A1/en not_active Abandoned

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