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EP3353273B1 - Procédé pour l'entretien et le nettoyage d'un lave-vaisselle automatique - Google Patents

Procédé pour l'entretien et le nettoyage d'un lave-vaisselle automatique Download PDF

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Publication number
EP3353273B1
EP3353273B1 EP16770918.7A EP16770918A EP3353273B1 EP 3353273 B1 EP3353273 B1 EP 3353273B1 EP 16770918 A EP16770918 A EP 16770918A EP 3353273 B1 EP3353273 B1 EP 3353273B1
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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.)
Active
Application number
EP16770918.7A
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German (de)
English (en)
Other versions
EP3353273A1 (fr
EP3353273B2 (fr
Inventor
Thomas Weber
Luca Bellomi
Hans Hartmut Janke
Volker Blank
Inga Kerstin Vockenroth
Noelle Wrubbel
Johannes Zipfel
Thomas Paulus
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Henkel AG and Co KGaA
Original Assignee
Henkel AG and Co KGaA
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Application filed by Henkel AG and Co KGaA filed Critical Henkel AG and Co KGaA
Priority to PL16770918.7T priority Critical patent/PL3353273T5/pl
Publication of EP3353273A1 publication Critical patent/EP3353273A1/fr
Publication of EP3353273B1 publication Critical patent/EP3353273B1/fr
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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 fat and limescale deposits in an automatic dishwasher and can be used together with an automatic dishwashing agent 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 for cleaning dishes together with a dishwashing detergent, but are usually dosed into the empty dishwasher. This is due in particular 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 nonionic surfactant and at least one acid or a buffer system comprising at least one acid and at least one base and which in a solution of 10% by weight in water have a pH value of ⁇ 6, 5, meet these requirements in that they have very good fat- and limescale-removing properties and do not significantly affect the cleaning performance of the dishwashing detergent for the dishes.
  • US 20110139182 discloses the use of a dishwashing detergent which releases at least 250 ppm nonionic surfactant in the dishwashing cycle for cleaning the internal parts of a dishwasher.
  • the WO03035819 A1 describes two or more phase tablets to prevent film formation on glasses during dishwashing.
  • the DE2259830 A1 as well as the DE20022229U relate to combinations of detergent and rinse aid.
  • the present invention is consequently directed to a method for cleaning and / or maintaining an automatic dishwasher, characterized in that, in a normal cleaning cycle for cleaning items to be washed, in particular dirty dishes, an automatic dishwashing detergent is used for a care agent formulated separately from the dishwashing detergent automatic dishwashers, the care agent containing (a) at least one nonionic surfactant, preferably a fatty alcohol alkoxylate, and (b) at least one acid or a buffer system of at least one acid and at least one base, and wherein a 10 wt .-% solution of the care product in water at 20 ° C.
  • an automatic dishwashing detergent is used for a care agent formulated separately from the dishwashing detergent automatic dishwashers, the care agent containing (a) at least one nonionic surfactant, preferably a fatty alcohol alkoxylate, and (b) at least one acid or a buffer system of at least one acid and at least one base, and wherein a 10 wt .-% solution of the care product in
  • the care product has a pH of ⁇ 6.5, preferably ⁇ 6.0, even more preferably 5.0-5.6, the care product being in a water-soluble packaging, in particular in a polyvinyl alcohol-containing one Slide. the care product being in a water-soluble packaging, in particular in a film containing polyvinyl alcohol.
  • the care product is used together with an automatic dishwashing detergent in a normal cleaning cycle for cleaning dirty wash ware, i.e. in the presence of wash ware (or dishes) to be cleaned.
  • an automatic dishwashing detergent in a normal cleaning cycle for cleaning dirty wash ware, i.e. in the presence of wash ware (or dishes) to be cleaned.
  • This has the advantage that the machine is prevented 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.
  • the simultaneous use of the care product in the usual dishwashing cycle with items to be washed saves time, water and energy.
  • the food residues and soiling, especially in the dishwasher sieve, which represent a breeding ground for undesired germs, are significantly reduced and
  • At least one includes, but is not limited to, 1, 2, 3, 4, 5, 6, and more.
  • the data in% by weight given in this application relate to the active substance content in g based on the weight of the entire composition in g.
  • Normal cleaning cycle refers to a program for cleaning items to be washed (dishes) in an automatic dishwasher. Such a cleaning cycle can comprise one or more pre-wash steps, one or more main wash steps and one or more drying steps. Such a cleaning cycle includes the automatic cleaning / rinsing of soiled items or dishes.
  • nonionic surfactant used in the care products described herein can be any of the nonionic surfactants known to the person skilled in the art. In preferred embodiments, however, nonionic surfactants from the group of alkoxylated alcohols are used.
  • One class of nonionic surfactants which can be used with preference and which can be used either as the sole nonionic surfactant or in combination with other nonionic surfactants are accordingly alkoxylated, preferably ethoxylated or ethoxylated and propoxylated fatty alcohols.
  • the at least one nonionic surfactant therefore comprises a fatty alcohol alkoxylate, in particular a fatty alcohol ethoxylate.
  • a fatty alcohol alkoxylate in particular a fatty alcohol ethoxylate.
  • non-capped fatty alcohol alkoxylates are preferred.
  • the alkyl group R 1 is a linear, preferably unsubstituted, alkyl group having 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 from 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 necessary 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 stated amount of fatty alcohol ethoxylate in an amount and form intended for a single use. It has been shown that, in particular with amounts of the care agent of 10 g and more, typically 10 to 50 g, preferably 15 to 30 g, in particular 20 to 25 g, good results in removing fat and limescale can be achieved per application.
  • the amount of care agent is such that the care agent lowers the pH value of the rinsing solution, preferably by up to a maximum of 2 units, more preferably to a pH value in the range from greater than 7 to less than the pH value of the rinsing solution in the absence of the care agent, most preferably to a pH value in the range from greater than 8 to less than the pH value of the washing liquor in the absence of the care agent.
  • pH value of the washing liquor in the absence of the care agent relates to the pH value of the washing water in the presence of only the automatic dishwashing detergent but without the care agent 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 which 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 the 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 agent in particular in an amount of 0.01 to 3% by weight, preferably 0.1 to 2% by weight, even 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 likewise a fatty alcohol ethoxylate which is solid under standard conditions (temperature 25 ° C., pressure 1013 mbar) and is preferably also used in the form of a powder or granules.
  • the agents described herein can contain at least one further nonionic surfactant. All nonionic surfactants known to the person skilled in the art can be used as nonionic surfactants.
  • Suitable nonionic surfactants are, for example, alkyl glycosides of the general formula RO (G) x , in which R corresponds to a primary linear or methyl-branched, in particular methyl-branched aliphatic radical with 8 to 22, preferably 12 to 18 carbon atoms, and G the symbol is, which stands for a glycose unit with 5 or 6 carbon atoms, preferably for glucose.
  • the degree of oligomerization x which indicates 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-tallowalkyl-N, N-dihydroxyethylamine oxide, and the fatty acid alkanolamides can 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 that.
  • surfactants are the polyhydroxy fatty acid amides known as PHFA.
  • the care compositions described herein also contain pH regulators in the form of at least one acid or a buffer system which contains at least one acid and at least one base.
  • the pH value of the agent can be adjusted so 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.
  • Organic acids such as citric acid, oxalic acid or their hydrates, very particularly preferably citric acid, are preferably used as the acid.
  • suitable acids are polycarboxylic acids, polycarboxylic acids being understood as meaning those carboxylic acids which 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 that such use is not objectionable for ecological reasons, as well as mixtures of these.
  • aminocarboxylic acids include aspartic acid, methylglycine diacetic acid (MGDA) and glutamine diacetic acid (GLDA) or ethylenediamine diacetic acid. Iminodisuccinic acid (IDS) and iminodiacetic acid (IDA) are also suitable. However, it is preferred that the acids used are not aminocarboxylic acids.
  • Suitable bases are all bases known in the prior art for dishwashing detergents. However, it is preferred that the base corresponding to the acid is used in the acid-base buffer system, 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, based on the respective (crystal) anhydrous form. Such amounts are necessary to ensure adequate 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. If a buffer system composed of acid and base is used, the amounts given relate to the sum of acid and base.
  • 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
  • from 2 to 5 g / job preferably 2 to 4 g / job, more preferably 3 to 3.5 g / job base, for example citrate
  • the amounts of acid and base in the buffer system must be selected so that the desired pH range is achieved.
  • the acids and 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 protectants, 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 protectants, glass corrosion inhibitors, foam inhibitors, dyes, fragrances, bitter substances and antimicrobial agents.
  • the agent is phosphate and / or phosphonate-free. 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, ie in particular phosphates or phosphonates in quantities of 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, preferably 0.03 g, is not exceeded.
  • Preferred anionic surfactants are fatty alcohol sulfates, fatty alcohol ether sulfates, dialkyl ether sulfates, monoglyceride sulfates, alkylbenzenesulfonates, olefin sulfonates, alkane sulfonates, ether sulfonates, n-alkyl ether sulfonates, ester sulfonates and lignin sulfonates.
  • 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, and in the form of ammonium or mono-, di-, tri- or tetraalkylammonium salts, in the case of the sulfonates also in the form of their corresponding acid, for example dodecylbenzenesulfonic acid.
  • builders that can be used include carbonates and silicates, and 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.
  • alkali 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 use crystalline layered silicates of the general formula NaMSi x O 2x + i ⁇ y H 2 O, where M is sodium or hydrogen, x is a number from 1.9 to 22, preferably from 1.9 to 4, as builders 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 Na 2 O: SiO 2 module 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 are preferably delayed in dissolution and have secondary washing properties.
  • the content of silicates, 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 odorant mixtures, such as those obtainable from plant sources, e.g. pine, citrus, jasmine, patchouli, rose or ylang-ylang oil.
  • the care products described here can be packaged in different ways.
  • the means can be in solid or liquid form, as well as a combination of solid and liquid forms. Powders, granulates, extrudates, compacts, in particular tablets, are particularly suitable as solid supply forms.
  • the liquid supply forms based on water and / or organic solvents can be thickened or in the form of gels.
  • the care product is in a fixed form.
  • solid 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 at 25 ° C (pressure 1013 mbar) in the solid state, for example as a powder or granules, and reduces - 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 prefabricated into dosage units. These metering units preferably comprise the amount of washing or cleaning-active substances necessary for a cleaning cycle. Preferred dosage units have a weight between 10 and 50 g, preferably between 20 and 30 g and in particular 25 g. In order to achieve an optimal cleaning result, those agents are preferred which are in the form of a prefabricated dosing unit.
  • the volume of the aforementioned metering units and their spatial shape can be selected so that the pre-assembled units cannot be metered via the metering chamber of a dishwasher, but rather the unit must be placed directly in 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 envelope of a corresponding portion amount of the composition according to the invention, the prefabricated dosage unit thus preferably comprises an agent according to the invention and a water-soluble envelope / packaging.
  • the water-soluble envelope is preferably formed from a water-soluble film material which is selected from the group consisting of polymers or polymer mixtures.
  • the envelope can be formed from one or from two or more layers of the water-soluble film material.
  • the water-soluble film material of the first layer and of the further layers, if any, can be the same or different.
  • Particularly preferred are foils which, for example, can be glued and / or sealed to packaging such as tubes or pillows after they have been filled with an agent.
  • the water-soluble casings / packaging are preferably deep-drawn bodies or injection-molded bodies.
  • the water-soluble containers / wrappings / packaging can also be produced by injection molding.
  • Injection molding refers to the reshaping of a molding compound in such a way that the compound contained in a mass cylinder for more than one injection molding process softens plastically under the action 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 tool when they cool.
  • Injection molding is a very economical modern process for the production of non-cutting shaped objects and is particularly suitable for automated mass production.
  • thermoplastic molding compounds powder, grains, cubes, pastes etc.
  • the thermoplastic molding compounds are heated until they liquefy (up to 180 ° C) and then injected under high pressure (up to 140 MPa) into closed, two-part, i.e. from a die (previously Female) and core (formerly male) existing, preferably water-cooled hollow forms, 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 the compositions being one of the compositions according to the invention.
  • the water-soluble casing contains polyvinyl alcohol or a polyvinyl alcohol copolymer.
  • Water-soluble casings which contain polyvinyl alcohol or a polyvinyl alcohol copolymer have good stability with sufficiently high water solubility, in particular cold water solubility.
  • Suitable water-soluble films for producing the water-soluble casing 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, since the direct synthesis route is not possible. The same applies to polyvinyl alcohol copolymers, which are prepared from polyvinyl acetate copolymers. It is preferred if at least one layer of the water-soluble coating comprises a polyvinyl alcohol whose degree of hydrolysis 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 envelope 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 are polylactic acids.
  • Preferred polyvinyl alcohol copolymers include vinyl alcohol and 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 vinyl alcohol, 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 in addition to vinyl alcohol.
  • the film material contains further additives.
  • the film material can, for example, contain plasticizers such as dipropylene glycol, ethylene glycol, diethylene glycol, propylene glycol, glycerine, sorbitol, mannitol or mixtures thereof.
  • Further additives include, for example, release aids, fillers, crosslinking agents, surfactants, antioxidants, UV absorbers, antiblocking agents, anti-stick agents or mixtures thereof.
  • Suitable water-soluble films for use in the water-soluble casings of the water-soluble packaging according to the invention are films which are sold by MonoSol LLC, for example under the designation M8630, C8400 or M8900.
  • Other suitable films include films with the designation Solublon® PT, Solublon® GA, Solublon® KC or Solublon® KL from Aicello Chemical Europe GmbH or the films VF-HP from Kuraray.
  • the use of the care product according to the invention in a water-soluble envelope has the advantage that, in contrast to the usual bottles, which are closed with a wax seal that only dissolves at high water temperatures, the pre-proportioned dosing units already at lower temperatures and therefore possibly earlier in the Can be released during the cleaning process or in the rinse cycle. Also, such a pre-proportioned dosing unit usually takes up less space than one of the conventional bottles used up to now, 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 agent according to the invention can be dosed into the interior of a dishwasher before or during a dishwasher 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.
  • the metering or entry of the agent according to the invention into the interior of the Dishwasher can be done manually.
  • the care agent is dosed into the interior of the automatic dishwasher directly at the start of the cleaning cycle, preferably before the automatic dishwasher detergent.
  • the care agent is preferably metered into the interior of the dishwasher before or at the start of the wash cycle and before the automatic dishwasher detergent is metered in via the metering chamber at the start of the main wash cycle.
  • the method according to the invention with a care agent according to the invention can be used in all commercially available dishwashers, in particular household dishwashers, possible programs.
  • low-temperature dishwashing programs are used. These are used in the household to wash dishes in order to save energy.
  • Such programs usually have nominal wash temperatures of 45 to 55 ° C.
  • the method is characterized in that, in its course, the temperature of the cleaning liquor in the main wash cycle to values below 70 ° C, preferably below 60 ° C and preferably to temperatures between 30 and 58 ° C, preferably to temperatures between about 40 and about 55 ° C.
  • Example 1 Influencing the cleaning performance of a multifunction machine dishwasher detergent tab
  • a difference of more than one unit is considered to be significant differences in cleaning performance.
  • the following cleaning performances 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 investigated analogously, in addition, 21 g of the formulation were placed on the floor of the dishwasher interior loaded with a Somat 7 tab (handle) in the dispensing compartment and the pH of the washing solution was measured immediately after the machine cleaner formula had dissolved in the rinse water. and later the pH value of the washing 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 (two-part) is weighed dry.
  • the grease soiling is placed directly in the upper basket of the machine and the dishwasher detergent is placed in the dispenser.
  • a cycle is run with the "Glass 40 ° C" program.
  • the filter is then removed, the remaining water is allowed to drip off for 30 minutes and the amount of fat built up is determined using a balance. The process is repeated until a fat mass of approx. 10 g has been built up.
  • the formulation E4 (21 g) was tested with various commercially available dishwashing detergents.
  • the remaining amount of fat with care products was 23-32% less than the remaining amount of fat without the care product.

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Emergency Medicine (AREA)
  • Detergent Compositions (AREA)

Claims (10)

  1. Procédé de nettoyage et/ou d'entretien d'un lave-vaisselle automatique, caractérisé en ce qu'un agent d'entretien pour lave-vaisselle automatiques, lequel est formulé séparément du détergent pour vaisselle, est ajouté dans un cycle de nettoyage normal destiné au nettoyage d'articles à laver, en particulier de vaisselle sale, à l'aide d'un détergent pour lave-vaisselle automatique, l'agent d'entretien contenant (a) au moins un tensioactif non ionique, de préférence un alcoxylate d'alcool gras, et (b) au moins un acide ou un système tampon constitué d'au moins un acide et d'au moins une base, et une solution à 10 % en poids de l'agent d'entretien dans de l'eau à 20 °C présentant un pH d'une valeur < 6,5, de préférence < 6,0, plus préférablement de 5,0 à 5,6, l'agent d'entretien se trouvant dans un emballage hydrosoluble, en particulier dans un film contenant de l'alcool polyvinylique.
  2. Procédé selon la revendication 1, caractérisé en ce qu'au moins un tensioactif non ionique est un éthoxylate d'alcool gras de formule (I),

            R1-O-(EO)m-H     (I),

    dans laquelle
    R1 est un groupe alkyle linéaire ou ramifié, substitué ou non substitué, comportant 12 à 24, en particulier 14 à 20, en particulier 16 à 18 atomes de carbone ;
    EO est une unité d'oxyde d'éthylène ; et
    m représente 10 à 50, en particulier 20 à 30, de préférence 22 à 27, en particulier 25.
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce que l'au moins un tensioactif non ionique est contenu en une quantité de 1 à 40 % en poids, de préférence de 2 à 20 % en poids, de manière particulièrement préférée de 5 à 15 % en poids, par rapport à l'agent d'entretien, et la quantité absolue de l'au moins un tensioactif non ionique dans la composition est de 0,1 à 4 g/application, de préférence de 1 à 3 g/application, de manière particulièrement préférée de 1,5 à 2,5 g/application, par exemple de 2 g/application.
  4. Procédé selon l'une des revendications 1 à 3, caractérisé en ce que (a) l'au moins un acide est un acide organique, en particulier l'acide citrique, ou (b) le système tampon est constitué d'au moins un acide organique, en particulier d'acide citrique, et de la base correspondante, en particulier de citrate.
  5. Procédé selon l'une des revendications 1 à 4, caractérisé en ce que l'au moins un acide ou le système tampon constitué d'au moins un acide et d'au moins une base est contenu en une quantité de 1 à 80 % en poids, de préférence de 5 à 60 % en poids, de manière particulièrement préférée de 20 à 45 % en poids, par rapport à l'agent d'entretien, et la quantité absolue de l'au moins un acide ou du système tampon dans la composition est de 0,2 à 16 g/application, de préférence de 3 à 10 g/application, de manière particulièrement préférée de 4 à 9 g/application, par exemple de 7 à 8 g/application.
  6. Procédé selon l'une des revendications 1 à 5, caractérisé en ce que l'agent d'entretien
    (a) se présente sous forme solide ; et/ou
    (b) se présente sous forme pré-portionnée ; et/ou
    (c) est utilisé en une quantité de 10 à 50 g/application, en particulier de 20 à 25 g/application.
  7. Procédé selon l'une des revendications 1 à 6, caractérisé en ce que l'agent d'entretien est exempt de phosphate et/ou de phosphonate.
  8. Procédé selon l'une des revendications 1 à 7, caractérisé en ce que l'agent d'entretien/la composition comprend au moins un autre constituant choisi dans le groupe constitué d'autres adjuvants, d'autres tensioactifs, des polymères, des enzymes, des inhibiteurs de corrosion, des inhibiteurs de corrosion du verre, des auxiliaires de désintégration, des substances odoriférantes et des supports de parfum.
  9. Procédé selon l'une des revendications 1 à 8, caractérisé en ce que l'agent d'entretien abaisse la valeur de pH du bain de lavage, de préférence d'au plus 2 unités, plus préférablement jusqu'à une valeur de pH dans la plage de plus de 7 à moins de la valeur de pH du bain de lavage en l'absence de l'agent d'entretien, plus préférablement encore jusqu'à une valeur de pH dans la plage de plus de 8 à moins de la valeur de pH du bain de lavage en l'absence de l'agent d'entretien.
  10. Procédé selon l'une des revendications 1 à 9, caractérisé en ce que l'agent d'entretien est ajouté dans l'espace intérieur du lave-vaisselle automatique au début du cycle de nettoyage, de préférence avant le détergent pour lave-vaisselle automatique.
EP16770918.7A 2015-09-25 2016-09-21 Procédé pour l'entretien et le nettoyage d'un lave-vaisselle automatique Active EP3353273B2 (fr)

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PL16770918.7T PL3353273T5 (pl) 2015-09-25 2016-09-21 Sposób pielęgnacji i czyszczenia automatycznej zmywarki do naczyń

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DE102015218475.7A DE102015218475A1 (de) 2015-09-25 2015-09-25 Verfahren zur Pflege und Reinigung einer automatischen Geschirrspülmaschine
PCT/EP2016/072357 WO2017050796A1 (fr) 2015-09-25 2016-09-21 Procédé pour l'entretien et le nettoyage d'un lave-vaisselle automatique

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US (1) US20180208878A1 (fr)
EP (1) EP3353273B2 (fr)
DE (1) DE102015218475A1 (fr)
ES (1) ES2860723T5 (fr)
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WO (1) WO2017050796A1 (fr)

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KR102448861B1 (ko) * 2016-01-05 2022-09-30 엘지전자 주식회사 식기 세척기 및 식기 세척기의 제어방법
DE102018222240A1 (de) * 2018-12-19 2020-06-25 Henkel Ag & Co. Kgaa Reinigungsmittelportion für automatische Geschirrspülmaschinen
DE102019220459A1 (de) * 2019-12-20 2021-06-24 Henkel Ag & Co. Kgaa Verfahren zur Reinigung und Pflege einer automatischen Geschirrspülmaschine
DE102019220460A1 (de) * 2019-12-20 2021-06-24 Henkel Ag & Co. Kgaa Verfahren zur Reinigung und Pflege einer automatischen Geschirrspülmaschine
DE102019220454A1 (de) * 2019-12-20 2021-06-24 Henkel Ag & Co. Kgaa Verfahren zur Reinigung und Pflege einer automatischen Geschirrspülmaschine
DE102020216106A1 (de) * 2020-12-17 2022-06-23 Henkel Ag & Co. Kgaa Verfahren zur Reinigung und Pflege einer automatischen Geschirrspülmaschine

Citations (8)

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Publication number Priority date Publication date Assignee Title
EP0033111A1 (fr) 1980-01-26 1981-08-05 Henkel Kommanditgesellschaft auf Aktien Agent de nettoyage et d'entretien liquide et son utilisation
EP0256148A1 (fr) 1986-08-12 1988-02-24 Joh. A. Benckiser GmbH Détergent liquide, granulé ou sous forme de poudre, spécialement pour machines à laver la vaisselle
WO2001062886A1 (fr) 2000-02-23 2001-08-30 The Procter & Gamble Company Pastille detergente
US20030060393A1 (en) 1999-12-29 2003-03-27 Reckitt Benckiser N.V. Composition for use in a dishwasher
WO2007068920A1 (fr) 2005-12-13 2007-06-21 Reckitt Benckiser N.V. Méthode et préparation
DE202009009335U1 (de) 2009-07-07 2009-10-01 Thurn-Produkte Gmbh & Co. Kg Behältnis
EP2333042A1 (fr) 2009-12-10 2011-06-15 The Procter & Gamble Company Utilisation de détergent
US20150252301A1 (en) 2005-11-25 2015-09-10 Reckitt Benckiser N.V. Composition and method

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Publication number Priority date Publication date Assignee Title
DE2259830B2 (de) * 1972-12-07 1981-01-29 Hoechst Ag, 6000 Frankfurt Verfahren zum maschinellen Spülen von Geschirr, Bestecken oder Gläsern
DE20022229U1 (de) * 2000-07-07 2001-07-12 Henkel KGaA, 40589 Düsseldorf Maschinengeschirrspülmittel mit Zusatznutzen
FR2831181A1 (fr) * 2001-10-23 2003-04-25 Rhodia Polyamide Intermediates Tablette antitartre acide et son utilisation en lavage automatique de la vaisselle
US6750186B2 (en) * 2002-02-04 2004-06-15 Robert Black Composition and method for cleaning dishwashers
EP1679363B1 (fr) * 2005-01-10 2008-07-09 The Procter and Gamble Company Composition de nettoyage pour machines de vaisselle ou de lavage

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0033111A1 (fr) 1980-01-26 1981-08-05 Henkel Kommanditgesellschaft auf Aktien Agent de nettoyage et d'entretien liquide et son utilisation
EP0256148A1 (fr) 1986-08-12 1988-02-24 Joh. A. Benckiser GmbH Détergent liquide, granulé ou sous forme de poudre, spécialement pour machines à laver la vaisselle
US20030060393A1 (en) 1999-12-29 2003-03-27 Reckitt Benckiser N.V. Composition for use in a dishwasher
WO2001062886A1 (fr) 2000-02-23 2001-08-30 The Procter & Gamble Company Pastille detergente
US20150252301A1 (en) 2005-11-25 2015-09-10 Reckitt Benckiser N.V. Composition and method
WO2007068920A1 (fr) 2005-12-13 2007-06-21 Reckitt Benckiser N.V. Méthode et préparation
DE202009009335U1 (de) 2009-07-07 2009-10-01 Thurn-Produkte Gmbh & Co. Kg Behältnis
EP2333042A1 (fr) 2009-12-10 2011-06-15 The Procter & Gamble Company Utilisation de détergent

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Publication number Publication date
US20180208878A1 (en) 2018-07-26
PL3353273T3 (pl) 2021-08-02
EP3353273A1 (fr) 2018-08-01
PL3353273T5 (pl) 2024-02-26
ES2860723T5 (es) 2024-06-26
EP3353273B2 (fr) 2023-12-06
WO2017050796A1 (fr) 2017-03-30
ES2860723T3 (es) 2021-10-05
DE102015218475A1 (de) 2017-03-30

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