EP2073683A1 - Method for operating a water-conducting domestic appliance - Google Patents
Method for operating a water-conducting domestic applianceInfo
- Publication number
- EP2073683A1 EP2073683A1 EP07803007A EP07803007A EP2073683A1 EP 2073683 A1 EP2073683 A1 EP 2073683A1 EP 07803007 A EP07803007 A EP 07803007A EP 07803007 A EP07803007 A EP 07803007A EP 2073683 A1 EP2073683 A1 EP 2073683A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- added
- enzyme
- program step
- program
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 39
- 238000004140 cleaning Methods 0.000 claims abstract description 28
- 239000000126 substance Substances 0.000 claims abstract description 19
- 102000004190 Enzymes Human genes 0.000 claims description 47
- 108090000790 Enzymes Proteins 0.000 claims description 47
- 239000007844 bleaching agent Substances 0.000 claims description 29
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 24
- 239000008139 complexing agent Substances 0.000 claims description 18
- 239000002270 dispersing agent Substances 0.000 claims description 17
- 239000003513 alkali Substances 0.000 claims description 16
- 238000005260 corrosion Methods 0.000 claims description 15
- 230000007797 corrosion Effects 0.000 claims description 15
- 239000004094 surface-active agent Substances 0.000 claims description 12
- 239000012190 activator Substances 0.000 claims description 11
- 150000001875 compounds Chemical class 0.000 claims description 10
- 239000011521 glass Substances 0.000 claims description 9
- 239000003112 inhibitor Substances 0.000 claims description 9
- 229920002472 Starch Polymers 0.000 claims description 6
- 102000004169 proteins and genes Human genes 0.000 claims description 6
- 108090000623 proteins and genes Proteins 0.000 claims description 6
- 235000019698 starch Nutrition 0.000 claims description 6
- 239000008107 starch Substances 0.000 claims description 6
- 230000003115 biocidal effect Effects 0.000 claims description 5
- 150000002500 ions Chemical class 0.000 claims description 5
- 239000000969 carrier Substances 0.000 claims description 4
- 239000012530 fluid Substances 0.000 claims description 3
- 102000004196 processed proteins & peptides Human genes 0.000 claims description 3
- 108090000765 processed proteins & peptides Proteins 0.000 claims description 3
- 150000003751 zinc Chemical class 0.000 claims description 3
- 230000000249 desinfective effect Effects 0.000 claims description 2
- 239000003599 detergent Substances 0.000 abstract description 6
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 18
- 230000000694 effects Effects 0.000 description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 12
- 102000013142 Amylases Human genes 0.000 description 7
- 108010065511 Amylases Proteins 0.000 description 7
- 235000011121 sodium hydroxide Nutrition 0.000 description 7
- 239000004382 Amylase Substances 0.000 description 6
- 108091005804 Peptidases Proteins 0.000 description 6
- 102100037486 Reverse transcriptase/ribonuclease H Human genes 0.000 description 6
- 235000019418 amylase Nutrition 0.000 description 6
- 239000004365 Protease Substances 0.000 description 5
- 102000004882 Lipase Human genes 0.000 description 4
- 108090001060 Lipase Proteins 0.000 description 4
- 239000004367 Lipase Substances 0.000 description 4
- 238000001035 drying Methods 0.000 description 4
- 235000019421 lipase Nutrition 0.000 description 4
- 239000002736 nonionic surfactant Substances 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 239000011814 protection agent Substances 0.000 description 4
- 150000004676 glycans Chemical class 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 230000001976 improved effect Effects 0.000 description 3
- 229910021645 metal ion Inorganic materials 0.000 description 3
- 235000019645 odor Nutrition 0.000 description 3
- 229920001282 polysaccharide Polymers 0.000 description 3
- 239000005017 polysaccharide Substances 0.000 description 3
- 230000008961 swelling Effects 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 2
- 241000195493 Cryptophyta Species 0.000 description 2
- 241000233866 Fungi Species 0.000 description 2
- 241001122767 Theaceae Species 0.000 description 2
- 241000700605 Viruses Species 0.000 description 2
- 239000004480 active ingredient Substances 0.000 description 2
- 239000003619 algicide Substances 0.000 description 2
- 230000000844 anti-bacterial effect Effects 0.000 description 2
- 244000052616 bacterial pathogen Species 0.000 description 2
- 239000003899 bactericide agent Substances 0.000 description 2
- 239000003139 biocide Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000004061 bleaching Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 229940079593 drug Drugs 0.000 description 2
- 239000000417 fungicide Substances 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000003641 microbiacidal effect Effects 0.000 description 2
- 229940124561 microbicide Drugs 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 239000012873 virucide Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 239000013543 active substance Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 229910001420 alkaline earth metal ion Inorganic materials 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000032770 biofilm formation Effects 0.000 description 1
- 239000012459 cleaning agent Substances 0.000 description 1
- 230000009918 complex formation Effects 0.000 description 1
- 230000000536 complexating effect Effects 0.000 description 1
- 238000010668 complexation reaction Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 239000007857 degradation product Substances 0.000 description 1
- 238000009897 hydrogen peroxide bleaching Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 235000019419 proteases Nutrition 0.000 description 1
- 239000008237 rinsing water Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L15/00—Washing or rinsing machines for crockery or tableware
- A47L15/42—Details
- A47L15/44—Devices for adding cleaning agents; Devices for dispensing cleaning agents, rinsing aids or deodorants
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L15/00—Washing or rinsing machines for crockery or tableware
- A47L15/0018—Controlling processes, i.e. processes to control the operation of the machine characterised by the purpose or target of the control
- A47L15/0055—Metering or indication of used products, e.g. type or quantity of detergent, rinse aid or salt; for measuring or controlling the product concentration
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L15/00—Washing or rinsing machines for crockery or tableware
- A47L15/42—Details
- A47L15/4236—Arrangements to sterilize or disinfect dishes or washing liquids
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L15/00—Washing or rinsing machines for crockery or tableware
- A47L15/0002—Washing processes, i.e. machine working principles characterised by phases or operational steps
- A47L15/0007—Washing phases
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L15/00—Washing or rinsing machines for crockery or tableware
- A47L15/0002—Washing processes, i.e. machine working principles characterised by phases or operational steps
- A47L15/0015—Washing processes, i.e. machine working principles characterised by phases or operational steps other treatment phases, e.g. steam or sterilizing phase
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L2401/00—Automatic detection in controlling methods of washing or rinsing machines for crockery or tableware, e.g. information provided by sensors entered into controlling devices
- A47L2401/10—Water cloudiness or dirtiness, e.g. turbidity, foaming or level of bacteria
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L2401/00—Automatic detection in controlling methods of washing or rinsing machines for crockery or tableware, e.g. information provided by sensors entered into controlling devices
- A47L2401/30—Variation of electrical, magnetical or optical quantities
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L2501/00—Output in controlling method of washing or rinsing machines for crockery or tableware, i.e. quantities or components controlled, or actions performed by the controlling device executing the controlling method
- A47L2501/07—Consumable products, e.g. detergent, rinse aids or salt
Definitions
- the invention relates to a method for operating a water-conducting household appliance according to the preamble of patent claim 1.
- dishwashers in particular domestic dishwashers, usually a arranged on the inner door of the dishwasher detergent adding means and a rinse aid, which deliver their entire contents in the washing compartment of the dishwasher at a predetermined time during the course of a wash program.
- powdery cleaning agents which are composed of a plurality of cleaning substances, such as enzymes which can add starch, proteinaceous or fatty compound, bleaches, bleach activators, dispersants and complexing agents, are usually used as detergent additives.
- surfactants and alkali carriers are usually used as surfactants and alkali carriers.
- the powdery detergent is added at a time, all the active ingredients of the powdered detergent from the time of addition are included in the wash liquor.
- the inventive method for operating a water-conducting household appliance, in particular a domestic dishwasher, wherein the water-conducting household appliance has a program control for performing a plurality of successive program steps and the program control is at least aachisffendosiersystem in operative connection, according to the invention is characterized in that at least during a Program step is added to a function having cleaning substance.
- a Program step is added to a function having cleaning substance.
- the cleaning substances may be an alkali carrier with which swelling of the dirt is achieved. This improves the effect of dosed enzymes while allowing the removal of coarse soils. It is also possible to add dispersants and / or complexing agents which reduce the water hardness by complexing. Furthermore, other metal ions are neutralized by the complex formation. Furthermore, proteins and / or peptides (protein) decomposing enzymes, starch compound and / or polysaccharide decomposing enzymes such as amylase and fatty compound decomposing enzymes such as lipase may be added.
- the cleaning substances may be an alkali carrier with which swelling of the dirt is achieved. This improves the effect of dosed enzymes while allowing the removal of coarse soils. It is also possible to add dispersants and / or complexing agents which reduce the water hardness by complexing. Furthermore, other metal ions are neutralized by the complex formation. Furthermore, proteins and / or peptides (protein) decomposing enzymes, starch compound and / or polysaccharide decomposing enzymes such
- bleach such as hydrogen peroxide, such as a bleach activator
- the bleach activator having the effect of significantly increasing the effect of bleaches, such as hydrogen peroxide, even at temperatures below 80 ° C.
- At least two cleaning substances are added. This allows, for example, to optimize the water hardness before each program step, and then to add a further cleaning substance.
- At least two cleaning substances are metered in, e.g. a bleaching agent, such as e.g. Hydrogen peroxide and a bleach activator, so as to achieve an optimum effect of the added cleaning substance.
- a bleaching agent such as e.g. Hydrogen peroxide and a bleach activator
- At least a first enzyme and a second enzyme with different functions are temporally objectionable dosed from each other. This allows successively to use enzymes, such as protease and amylase, which would influence each other negatively in their effect on simultaneous addition.
- a starch compound and / or polysaccharide-decomposing enzyme is added as the first enzyme.
- the enzyme is amylase.
- a protein and / or lipid-decomposing enzyme is added, such as protease.
- a fat decomposing enzyme is added, such as e.g. Lipase.
- first the first enzyme and a dispersing and complexing agent are metered.
- starch compounds and / or polysaccharides are first decomposed by the first enzyme and by the addition of a Dispersing and complexing agent which optimizes water hardness and thus optimizes the effect of the first enzyme.
- the pH is increased.
- an alkali carrier e.g. Sodium hydroxide solution. This causes a better swelling, so that enzymes work better and at the same time provides improved glass protection.
- At least one bleaching agent is added.
- the bleaching agent may be hydrogen peroxide.
- the addition of the bleaching agent is temporally spaced from the addition of enzymes, e.g. in different program steps, so as to avoid a negative impact effecting interaction.
- At least alkaline earth ions are at least partially complexed. This can be done by adding a dispersing and / or Komplexierstoffes, so that given each program step an optimal set water hardness for maximum effect of the cleaning substances.
- an ion exchanger or other water softening device or method may be used.
- the multiplicity of program steps are program-controlled. That is, an operator selects from a plurality of provided rinse programs that combine a plurality of program steps with different parameters, a program that is then performed by a controller of a dishwasher.
- the dosage of the individual cleaning substances is carried out according to a predetermined amount.
- at least one program step is sensor-controlled. For example, adjustment of the dosage can take place by means of turbidity measurement or conductivity measurement.
- a "pre-rinse" program step in which an alkali carrier and a dispersant are added, and the dosing can be carried out simultaneously or at different times.
- an enzyme and / or a surfactant are additionally added in the program step "prewash.”
- the enzyme may be protease, amylase or lipase, while the surfactant may be, in particular, a nonionic In this case too, the dosage can take place simultaneously or at different times.
- a program step "cleaning" in which an alkali carrier, a dispersing and / or complexing agent and at least two enzymes are added at a time interval
- Components can again be separated from one another at the same time or in time, in the case of the alkali carrier and dispersant and / or complexing agent.
- the two enzymes such as protease and amylase, however, must be added separately in time, since the protease affects the effect of amylase negative.
- a fat-splitting enzyme and / or a surfactant are added.
- lipase is added as fat-splitting enzyme and a nonionic surfactant as surfactant for improving the dispersion.
- the addition of the surfactant can be carried out simultaneously with another component or separated in time.
- a program step "intermediate rinsing" is provided in which alkali carriers and a dispersing agent are added, the dosing can take place simultaneously or separately, the addition of alkali carriers in the intermediate rinsing step allows preparation for removal of Tea dirt by means of a bleach, since for optimal removal of Teeschmutz a certain pH value must be achieved.
- a program step "rinsing” in which a dispersing and / or complexing agent, a bleaching agent, a bleach activator and a surfactant are added thereto Water hardness reduced and metal ions also complexed, which facilitates, for example, the removal of, for example, Teeschmutz.
- a bleaching agent such as hydrogen peroxide Bleaching agents are added separately from enzymes, preferably in the last program step
- the bleaching agent can be added together with any other component at the same time.
- the bleach activator thereby supports the bleaching action of hydrogen peroxide at temperatures below 80 ° C., so that an optimum bleaching effect is achieved by
- Bleach activator can be carried out together with the dosage of the bleaching agent or offset in time.
- a surfactant such as a nonionic surfactant causes a rinse effect by lowering the surface tension of the
- the dosage of this component may be simultaneous with another
- an alkali carrier is added in the program step "rinsing."
- the alkali carrier may be caustic soda, the addition of sodium hydroxide effecting an adjustment of the pH results in an improved effect of bleaching agents for removing, for example, tea soil.
- a program step disinfecting is provided. This makes it possible to counteract the formation of unpleasant odors, which can occur when dishes are collected for days in a dishwasher. Cause are the degradation products of microorganisms that form in a dishwasher. This is the case especially at high temperatures, as in summer.
- a biocidal fluid is added.
- biocidal fluid may be biocides against bacteria (bactericides), against fungi (fungicides), against germs (microbicides), against viruses (virucides) and also against algae (algicides), which counteract the colonization and possible biofilm formation and thus unpleasant odor development during to prevent longer service life.
- a corrosion protection agent in particular a glass protection corrosion protection agent is added that counteracts the glass corrosion. It is preferably provided that the corrosion inhibitor contains at least zinc salt. However, other suitable corrosion inhibitors can be used.
- the addition of the corrosion inhibitors is preferably carried out in a program step cleaning and / or rinsing, but can also be carried out during other program steps, such as. During a Swiss Vietnamese vinegars.
- the addition of the anticorrosion agent takes place temporally spaced to increase the pH, in particular by adding sodium hydroxide solution, and / or for the addition of at least one enzyme and / or for addition of a complexing agent.
- caustic soda is added as an alkali carrier together with a dispersing and / or complexing agent in a step 1 so as to cause swelling so that the cleaning effect of subsequent enzymes is improved and alkaline earth metal ions affecting water hardness are complexed ,
- step 2 the cleaning is carried out, wherein at the beginning the enzyme amylase, for the decomposition of starch compounds and / or polysaccharides (sugar compound) in step 2 is added. Time-shifted, for example, about 5 min later, the enzyme protease is added in step 3 in order to decompose proteins and / or peptides (protein compounds).
- sodium hydroxide solution is the last added in a step 4 at a temperature of about 50 9 C as an alkali carrier, so that the pH of the wash liquor increases, which improves the effect of enzymes during the subsequent Nachwaschphase.
- the final step is a rinse, in which the rinse liquor is heated to about 85 9 C.
- a dispersing and / or complexing agent is added in order to complex ions, in particular alkaline earth ions, and at the same time to facilitate the detachment of dirt, for example tea stains, by this complexation of metal ions.
- hydrogen peroxide as a bleaching agent and in a step 7 a bleach activator are added, so that the optimum effect of hydrogen peroxide as a bleaching agent is also given at temperatures below 80 ° C.
- a non-ionic surfactant is added to ensure a residue-free drying process by lowering the surface tension so that, for example, no dry edges remain on glasses.
- biocidal fluid As a program step of a cleaner program or triggered manually by an operator manually, a biocidal fluid may be added become.
- biocides can be added against bacteria (bactericides), against fungi (fungicides), against germs (microbicides), against viruses (virucides) and also against algae (algicides) in order to prevent unpleasant odors during longer periods of use.
- the addition may be made at the end of the rinse cycle to disinfect the water remaining in the sump or in the lines.
- the formation of biofilms can be prevented.
- an extra Hygiene facedprogramm be provided that automatically executed at predetermined intervals or manually triggered if necessary by an operator.
- the hygiene program about 3 liters of water are added and sufficient biocidal active substance is added. Then, the liquor containing the biocidal drug is circulated.
- other substances may be added to improve the effects, e.g. Dispersing and complexing agents.
- a circulation pump can be operated with only reduced speed, wherein at the same time a water switch is closed, so that wash liquor exits only to a small extent from spray arms. So only the pipes and the pump sump are cleaned.
- a corrosion protection agent in particular a glass protection corrosion protection agent, can be added which counteracts glass corrosion, which contains, for example, zinc salt.
- the addition of the corrosion inhibitors is carried out in a program step cleaning and / or rinsing, or even during another program step, such as. During an intermediate rinse step.
- the addition of the anticorrosive agent takes place temporally spaced to increase the pH, in particular by adding sodium hydroxide solution, and / or for the addition of at least one enzyme and / or for the addition of a complexing agent.
Landscapes
- Detergent Compositions (AREA)
- Domestic Plumbing Installations (AREA)
- Water Treatment By Sorption (AREA)
- Cookers (AREA)
- Control Of Washing Machine And Dryer (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention relates to a method for operating a water-conducting domestic appliance, in particular a domestic dishwasher, said water-conducting domestic appliance having a programme controller for executing a plurality of successive programme steps and the programme controller being at least operatively connected to one detergent dosing system. The invention is characterised in that at least during one programme step, a cleaning substance that fulfils a function is added in a dosed manner.
Description
Verfahren zum Betreiben eines wasserführenden Haushaltsgeräts Method for operating a water-conducting household appliance
Die Erfindung betrifft ein Verfahren zum Betreiben eines wasserführendes Haushaltsgeräts nach dem Oberbegriff des Patentanspruchs 1 .The invention relates to a method for operating a water-conducting household appliance according to the preamble of patent claim 1.
Bspw. besitzen Geschirrspülmaschinen, insbesondere Haushalts-Geschirrspülmaschinen, üblicher Weise eine an der Innentür des Geschirrspülers angeordnete Reinigerzugabeeinrichtung und eine Klarspülerzugabeeinrichtung, die zu einem vorbestimmten Zeitpunkt während des Ablaufs eines Spülprogramms ihren gesamten Inhalt in den Spülraum der Geschirrspülmaschine abgeben. Dabei werden üblicher Weise als Reinigerzugabe pulverförmige Reinigungsmittel verwendet, die aus einer Vielzahl von Reinigersubstanzen zusammengesetzt sind, wobei jede der Substanzen eine Funktion aufweist, wie z.B. Enzyme, die Stärke, Eiweiß- oder Fettverbindung versetzen können, Bleichmittel, Bleichaktivatoren, Dispergier- und Komplexiermittel, Tenside und Alkaliträger. Da jedoch das pulverförmige Reinigungsmittel zu einem Zeitpunkt zugegeben wird, sind alle Wirkstoffe des pulverförmige Reinigungsmittels ab dem Zugabezeitpunkt in der Spülflotte enthalten. Dies reduziert jedoch die Reinigungsleistung, da einzelne Komponenten sich negativ gegenseitig beeinflussen und damit das Reinigungsergebnis negativ beeinträchtigen. Eine Alternative zu der Verwendung von pulverförmigen Reinigern sind Kombinationsprodukte in Tablettenform, die vor Beginn eines Spülzyklus in den Spülraum eines Geschirrspülers eingebracht werden. Dabei sind die in Tablettenform ausgebildeten Kombinationsprodukte derart ausgebildet, dass gemäß den Schritten einer Haushalts-Geschirrspülmaschine die entsprechenden Wirkstoff komponenten, wie z.B. Reiniger, Klarspüler, Härtebinder, Glasschutz etc. zeitlich versetzt freigegeben werden. Hier sind jedoch auch die möglichen Kombinationen und zeitlichen Reihenfolgen von Wirkstoffkomponenten begrenzt. Ferner tritt bei Haushalts-Geschirrspülmaschinen, welche Schnellprogramm mit beispielsweise 30 min Laufzeit aufweisen, das Problem auf, dass derartige Kombinationsprodukte in Tablettenform sich nicht während der Programmlaufzeit vollständig auflösen können und so am Ende eines derartigen Spülgangs die Gläser störende Wasserflecke aufweisen.
Es ist daher Aufgabe der Erfindung, ein Verfahren zum Betreiben eines wasserführenden Haushaltsgeräts, insbesondere Haushalts-Geschirrspülmaschine anzugeben, mit dem ein optimiertes Reinigungs- und Trockenergebnis bei minimal Chemie-Einsatz zu erreicht werden kann.For example. have dishwashers, in particular domestic dishwashers, usually a arranged on the inner door of the dishwasher detergent adding means and a rinse aid, which deliver their entire contents in the washing compartment of the dishwasher at a predetermined time during the course of a wash program. In this case, powdery cleaning agents which are composed of a plurality of cleaning substances, such as enzymes which can add starch, proteinaceous or fatty compound, bleaches, bleach activators, dispersants and complexing agents, are usually used as detergent additives. Surfactants and alkali carriers. However, since the powdery detergent is added at a time, all the active ingredients of the powdered detergent from the time of addition are included in the wash liquor. However, this reduces the cleaning performance, as individual components influence each other negatively and thus adversely affect the cleaning result. An alternative to the use of powdered cleaners are combination products in tablet form, which are introduced before the start of a rinse cycle in the washing compartment of a dishwasher. The combination products formed in tablet form are designed such that according to the steps of a domestic dishwasher, the corresponding active ingredient components, such as cleaners, rinse aid, hardness binders, glass protection, etc. are released at different times. Here, however, the possible combinations and time sequences of drug components are limited. Furthermore, in domestic dishwashers which have a rapid program with, for example, 30 minutes of running time, the problem arises that such combination products in tablet form can not dissolve completely during the program runtime and thus at the end of such a wash cycle the glasses have disturbing water spots. It is therefore an object of the invention to provide a method for operating a water-conducting household appliance, in particular domestic dishwasher, with which an optimized cleaning and drying result can be achieved with minimal use of chemicals.
Die Aufgabe der Erfindung wird dadurch gelöst durch ein Verfahren mit dem Kennzeichen des neuen Patentanspruchs 1. Vorteilhafte Ausbildungen der Erfindung sind in den Unteransprüchen angegeben.The object of the invention is achieved by a method with the characteristics of the new patent claim 1. Advantageous embodiments of the invention are specified in the subclaims.
Das erfindungsgemäße Verfahren zum Betreiben eines wasserführenden Haushaltsgeräts, insbesondere einer Haushalts-Geschirrspülmaschine, wobei das wasserführende Haushaltsgerät eine Programmsteuerung zur Durchführung einer Vielzahl von aufeinander folgender Programmschritte aufweist und die Programmsteuerung wenigstens mit einem Reinigungsmitteldosiersystem in Wirkverbindung steht, ist erfindungsgemäß dadurch gekennzeichnet, dass wenigstens während eines Programmschritts ein eine Funktion aufweisende Reinigungssubstanz zudosiert wird. Es werden keine Kombinationsprodukte verwendet, die eine Vielzahl von Reinigersubstanzen mit je einer Funktion aufweisen. Hierdurch wird eine Wechselwirkung von einzelnen Reinigungssubstanzen negativer Art ausgeschlossen und so eine Verbesserung der Reinigungs- und Trockenergebnisse erreicht.The inventive method for operating a water-conducting household appliance, in particular a domestic dishwasher, wherein the water-conducting household appliance has a program control for performing a plurality of successive program steps and the program control is at least a Reinigungsmitteldosiersystem in operative connection, according to the invention is characterized in that at least during a Program step is added to a function having cleaning substance. There are no combination products used, which have a variety of detergent substances each with a function. As a result, an interaction of individual cleaning substances negative type is excluded, thus achieving an improvement of the cleaning and drying results.
Vorzugsweise ist dabei vorgesehen, dass eine Vielzahl, insbesondere 3 bis 10, eine Funktion aufweisende Reinigungssubstanzen zudosiert werden. Dabei kann es sich bei den Reinigungssubstanzen um einen Alkaliträger handeln, mit dem ein Aufquellen des Schmutzes erreicht wird. Dies verbessert die Wirkung von dazudosierten Enzymen und erlaubt gleichzeitig die Entfernung von groben Anschmutzungen. Ferner können Dispergier- und/oder Komplexierstoffe zugeführt werden, die durch Komplexbildung die Wasserhärte reduzieren. Ferner werden auch andere Metall-Ionen durch die Komplexbildung neutralisiert. Desweiteren können Proteine und/oder Peptide (Eiweiß) zersetzende Enzyme, Stärkeverbindung und/oder Polysacharide zersetzende Enzyme, wie zum Beispiel Amylase und Fettverbindung zersetzende Enzyme, wie beispielsweise Lipase zugegeben werden. Außerdem können Tenside, insbesondere nicht-ionische Tenside zugeführt werden, die die Dispergierung positiv unterstützen. Schließlich können
noch Bleichmittel, wie zum Beispiel Wasserstoffperoxid hinzugefügt werden, so wie ein Bleichaktivator, wobei der Bleichaktivator die Wirkung hat, dass er die Wirkung von Bleichmitteln, wie zum Beispiel Wasserstoffperoxid, auch bei Temperaturen von unterhalb 80 °C deutlich gesteigert wird.Preferably, it is provided that a plurality, in particular 3 to 10, a function having cleaning substances are added. In this case, the cleaning substances may be an alkali carrier with which swelling of the dirt is achieved. This improves the effect of dosed enzymes while allowing the removal of coarse soils. It is also possible to add dispersants and / or complexing agents which reduce the water hardness by complexing. Furthermore, other metal ions are neutralized by the complex formation. Furthermore, proteins and / or peptides (protein) decomposing enzymes, starch compound and / or polysaccharide decomposing enzymes such as amylase and fatty compound decomposing enzymes such as lipase may be added. In addition, surfactants, in particular nonionic surfactants can be supplied, which support the dispersion positive. Finally, you can bleach, such as hydrogen peroxide, such as a bleach activator, the bleach activator having the effect of significantly increasing the effect of bleaches, such as hydrogen peroxide, even at temperatures below 80 ° C.
Dabei ist vorzugsweise vorgesehen, dass während eines Programmschritts wenigstens zwei Reinigungssubstanzen zudosiert werden. Dies erlaubt es beispielsweise vor jedem Programmschritt die Wasserhärte zu optimieren, und anschließend eine weitere Reinigungssubstanz hinzuzudosieren.It is preferably provided that during a program step at least two cleaning substances are added. This allows, for example, to optimize the water hardness before each program step, and then to add a further cleaning substance.
Vorzugsweise ist dabei vorgesehen, dass wenigstens zwei Reinigungssubstanzen zudosiert werden, wie z.B. ein Bleichmittel, wie z.B. Wasserstoffperoxid und ein Bleichaktivator, um so eine optimale Wirkung der zugegebenen Reinigungssubstanz zu erreichen.Preferably, it is provided that at least two cleaning substances are metered in, e.g. a bleaching agent, such as e.g. Hydrogen peroxide and a bleach activator, so as to achieve an optimum effect of the added cleaning substance.
Ferner ist vorzugsweise vorgesehen, dass wenigstens ein erstes Enzym und ein zweites Enzym mit unterschiedlichen Funktionen zeitlich beanstandet von einander zudosiert werden. Dies erlaubt es, nacheinander Enzyme zu verwenden, wie beispielsweise Protease und Amylase, die sich bei gleichzeitiger Zugabe gegenseitig negativ in ihrer Wirkung beeinflussen würden.Further, it is preferably provided that at least a first enzyme and a second enzyme with different functions are temporally objectionable dosed from each other. This allows successively to use enzymes, such as protease and amylase, which would influence each other negatively in their effect on simultaneous addition.
Dabei ist bevorzugt vorgesehen, dass als erstes Enzym ein Stärkeverbindung und/oder Polysacharide zersetzendes Enzym zudosiert wird. Bei dem Enzym handelt es sich um Amylase.It is preferably provided that a starch compound and / or polysaccharide-decomposing enzyme is added as the first enzyme. The enzyme is amylase.
Ferner ist bevorzugt vorgesehen, dass als zweites Enzym ein Protein und/oder Lipide zersetzende Enzym zudosiert wird, wie beispielsweise Protease.Furthermore, it is preferably provided that as the second enzyme, a protein and / or lipid-decomposing enzyme is added, such as protease.
Ferner wird vorgesehen sein, dass als weiteres Enzym ein Fettverbindungen zersetzendes Enzym zudosiert wird, wie z.B. Lipase.It will further be provided that as a further enzyme, a fat decomposing enzyme is added, such as e.g. Lipase.
Dabei ist bevorzugt vorgesehen, dass zuerst das erste Enzym und ein Dispergier- und Komplexierstoff zudosiert werden. Damit werden zuerst durch das erste Enzym Stärkeverbindungen und/oder Polysacharide zersetzt und durch die Zugabe eines
Dispergier- und Komplexierstoffes die Wasserhärte optimiert und so die Wirkung des ersten Enzyms optimiert.It is preferably provided that first the first enzyme and a dispersing and complexing agent are metered. Thus, starch compounds and / or polysaccharides are first decomposed by the first enzyme and by the addition of a Dispersing and complexing agent which optimizes water hardness and thus optimizes the effect of the first enzyme.
In einer bevorzugten Weiterbildung des Verfahrens ist vorgesehen, dass wenigstens nach Zugabe des zweiten Enzyms der PH-Wert erhöht wird. Diese kann beispielsweise durch Zugabe eines Alkaliträgers, wie z.B. Natronlauge erfolgen. Dies bewirkt eine bessere Aufquellung, so dass Enzyme besser wirken und bewirkt gleichzeitig einen verbesserten Glasschutz.In a preferred embodiment of the method, it is provided that at least after addition of the second enzyme, the pH is increased. This can be achieved, for example, by adding an alkali carrier, e.g. Sodium hydroxide solution. This causes a better swelling, so that enzymes work better and at the same time provides improved glass protection.
In einer bevorzugten Weiterbildung des erfindungsgemäßen Verfahrens ist vorgesehen, dass wenigstens ein Bleichmittel zugegeben wird. Bei dem Bleichmittel kann es sich um Wasserstoffperoxid handeln. Die Zugabe des Bleichmittels erfolgt zeitlich beabstandet von der Zugabe von Enzymen, z.B. in unterschiedlichen Programmschritten, um so eine die Wirkung negativ beeinflussende Wechselwirkung zu vermeiden.In a preferred embodiment of the method according to the invention it is provided that at least one bleaching agent is added. The bleaching agent may be hydrogen peroxide. The addition of the bleaching agent is temporally spaced from the addition of enzymes, e.g. in different program steps, so as to avoid a negative impact effecting interaction.
Da Wasserstoffperoxid als Bleichmittel erst ab Temperaturen von ca. 80 °C seine optimale Wirkung entfaltet, ist vorzugsweise vorgesehen, dass ein Bleichaktivator zugegeben wird.Since hydrogen peroxide as bleaching agent develops its optimum effect only from temperatures of about 80 ° C., it is preferably provided that a bleach activator is added.
Ferner ist vorzugsweise vorgesehen, dass wenigstens Erdalkaliionen wenigstens teilweise komplexiert werden. Dies kann durch Zugabe eines Dispergier- und/oder Komplexierstoffes erfolgen, so dass bei jedem Programmschritt eine optimale eingestellte Wasserhärte für maximale Wirkung der Reinigungssubstanzen gegeben ist. Alternativ oder zusätzlich kann ein Ionenaustauscher oder eine andere Wasserenthärtungseinrichtung oder -verfahren Verwendung finden.Furthermore, it is preferably provided that at least alkaline earth ions are at least partially complexed. This can be done by adding a dispersing and / or Komplexierstoffes, so that given each program step an optimal set water hardness for maximum effect of the cleaning substances. Alternatively or additionally, an ion exchanger or other water softening device or method may be used.
In einer bevorzugten Ausführungsform ist vorgesehen, dass die Vielzahl der Programmschritte programmgesteuert ablaufen. D.h., eine Bedienperson, wählt aus einer Vielzahl von bereitgestellten Spülprogrammen, die eine Vielzahl von Programmschritten mit unterschiedlichen Parametern kombinieren ein Programm aus, dass dann von einer Steuereinrichtung einer Geschirrspülmaschine durchgeführt wird. Dabei erfolgt die Dosierung der einzelnen Reinigungssubstanzen gemäß einer vorgegebenen Menge.
In einer bevorzugten Weiterbildung ist vorgesehen, dass wenigstens ein Programmschritt sensorgesteuert abläuft. Zum Beispiel kann mittels Trübungsmessung oder Leitfähigkeitsmessung eine Anpassung der Dosierung erfolgen.In a preferred embodiment, it is provided that the multiplicity of program steps are program-controlled. That is, an operator selects from a plurality of provided rinse programs that combine a plurality of program steps with different parameters, a program that is then performed by a controller of a dishwasher. In this case, the dosage of the individual cleaning substances is carried out according to a predetermined amount. In a preferred embodiment it is provided that at least one program step is sensor-controlled. For example, adjustment of the dosage can take place by means of turbidity measurement or conductivity measurement.
In einer bevorzugten Ausführungsform ist ein Programmschritt „Vorspülen" vorgesehen, in dem ein Alkaliträger und ein Dispergierstoff zugegeben werden. Die Dosierung kann gleichzeitig oder zeitlich voneinander getrennt erfolgen.In a preferred embodiment, a "pre-rinse" program step is provided, in which an alkali carrier and a dispersant are added, and the dosing can be carried out simultaneously or at different times.
In einer bevorzugten Weiterbildung ist vorgesehen, dass im Programmschritt „Vorspülen" zusätzlich ein Enzym und/oder ein Tensid zugegeben werden. Bei dem Enzym kann es sich um Protease, Amylase oder Lipase handeln, während es sich bei dem Tensid insbesondere um ein nicht-ionisches Tensid handeln kann. Auch hier kann die Dosierung gleichzeitig oder zeitlich voneinander getrennt erfolgen.In a preferred development, it is provided that an enzyme and / or a surfactant are additionally added in the program step "prewash." The enzyme may be protease, amylase or lipase, while the surfactant may be, in particular, a nonionic In this case too, the dosage can take place simultaneously or at different times.
In einer weiteren bevorzugten Ausführungsform ist ein Programmschritt „Reinigen" vorgesehen, in dem ein Alkaliträger, ein Dispergier- und/oder Komplexierstoff und wenigstens zwei Enzyme zeitlich beabstandet zugegeben werden. Die Dosierung derIn a further preferred embodiment, a program step "cleaning" is provided, in which an alkali carrier, a dispersing and / or complexing agent and at least two enzymes are added at a time interval
Komponenten kann wieder gleichzeitig oder zeitlich voneinander getrennt erfolgen, im Fall des Alkaliträgers und Dispergiers- und/oder Komplexierstoffes. Die zwei Enzyme, beispielsweise Protease und Amylase hingegen müssen zeitlich getrennt voneinander zugegeben werden, da die Protease die Wirkung der Amylase negativ beeinflusst.Components can again be separated from one another at the same time or in time, in the case of the alkali carrier and dispersant and / or complexing agent. The two enzymes, such as protease and amylase, however, must be added separately in time, since the protease affects the effect of amylase negative.
In einer bevorzugten Weiterbildung ist vorgesehen, dass zusätzlich ein fettspaltendes Enzym und/oder ein Tensid zugegeben werden. Dabei wird als fettspaltendes Enzym beispielsweise Lipase hinzugegeben und als Tensid ein nicht-ionisches Tensid zur Verbesserung der Dispergierung. Dabei kann die Zugabe des Tensids gleichzeitig mit einer anderen Komponente oder zeitlich getrennt erfolgen.In a preferred embodiment it is provided that additionally a fat-splitting enzyme and / or a surfactant are added. In this case, for example, lipase is added as fat-splitting enzyme and a nonionic surfactant as surfactant for improving the dispersion. In this case, the addition of the surfactant can be carried out simultaneously with another component or separated in time.
In einer weiteren, bevorzugten Ausführungsform ist ein Programmschritt „Zwischenspülen" vorgesehen, in dem Alkaliträger und ein Dispergierstoff zugegeben werden. Die Dosierung kann gleichzeitig oder zeitlich voneinander getrennt erfolgen. Dabei erlaubt die Zugabe von Alkaliträger in dem Programmschritt „Zwischenspülen" eine Vorbereitung für Entfernung von Teeschmutz mittels einer Bleiche, da für einen optimalen Abtrag von Teeschmutz ein bestimmter PH-Wert erreicht werden muss.
Schließlich ist gemäß einer bevorzugten Weiterbildung ein Programmschritt „Klarspülen" vorgesehen, in dem ein Dispergier- und/oder Komplexierstoff, ein Bleichmittel, ein Bleichaktivator und ein Tensid dazugegeben werden. Dabei wird durch die Zugabe des Dispergier- und/oder Komplexierstoffes, durch Komplexbildung die Wasserhärte reduziert und Metall-Ionen ebenfalls komplexiert, was beispielsweise den Abtrag von bspw. Teeschmutz erleichtert. Die Dosierung des Dispergier- und/oder Komplexierstoffes kann gleichzeitig oder zeitlich voneinander getrennt von anderen Komponenten erfolgen. Durch die Zugabe von einem Bleichmittel, wie beispielsweise Wasserstoffperoxid wird die Entfernung von Teeschmutz bzw. Teehaut erreicht. Die Zugabe von Bleichmitteln erfolgt dabei getrennt von Enzymen, bevorzugt im letzten Programmschritt. Abgesehen von der Zugabe von Enzymen, kann das Bleichmittel gleichzeitig mit jeder anderen Komponente zusammen zudosiert werden.In a further preferred embodiment, a program step "intermediate rinsing" is provided in which alkali carriers and a dispersing agent are added, the dosing can take place simultaneously or separately, the addition of alkali carriers in the intermediate rinsing step allows preparation for removal of Tea dirt by means of a bleach, since for optimal removal of Teeschmutz a certain pH value must be achieved. Finally, according to a preferred development, a program step "rinsing" is provided, in which a dispersing and / or complexing agent, a bleaching agent, a bleach activator and a surfactant are added thereto Water hardness reduced and metal ions also complexed, which facilitates, for example, the removal of, for example, Teeschmutz.The metering of the dispersing and / or Komplexierstoffes can be carried out simultaneously or temporally separated from other components by the addition of a bleaching agent, such as hydrogen peroxide Bleaching agents are added separately from enzymes, preferably in the last program step Apart from the addition of enzymes, the bleaching agent can be added together with any other component at the same time.
Der Bleichaktivator unterstützt dabei die Bleichwirkung von Wasserstoffperoxid bei Temperaturen von unterhalb von 809C, so dass eine optimale Bleichwirkung durchThe bleach activator thereby supports the bleaching action of hydrogen peroxide at temperatures below 80 ° C., so that an optimum bleaching effect is achieved by
Wasserstoffperoxid als Bleichmittel auch bei den während eines Betriebs einerHydrogen peroxide as a bleach even during the operation of a
Geschirrspülmaschine üblichen Temperaturen möglich ist. Die Dosierung desDishwasher usual temperatures is possible. The dosage of the
Bleichaktivators kann mit der Dosierung des Bleichmittels zusammen erfolgen oder zeitlich versetzt. Die Zugabe eines Tensids, beispielsweise eines nicht-ionischen Tensids bewirkt eine Klarspülwirkung durch Herabsetzung der Oberflächenspannung desBleach activator can be carried out together with the dosage of the bleaching agent or offset in time. The addition of a surfactant such as a nonionic surfactant causes a rinse effect by lowering the surface tension of the
Wassers. Die Dosierung dieser Komponente kann gleichzeitig mit einer anderenWater. The dosage of this component may be simultaneous with another
Komponente oder zeitlich versetzt erfolgen.Component or offset in time.
Vorzugsweise ist dabei vorgesehen, dass im Programmschritt „Klarspülen" ein Alkaliträger zugegeben wird. Bei dem Alkaliträger kann es sich um Natronlauge handeln, wobei die Zugabe von Natronlauge durch Anpassung des PH-Wertes eine verbesserte Wirkung von Bleichmitteln zur Entfernung von z.B. Teeschmutz bewirkt.It is preferably provided that an alkali carrier is added in the program step "rinsing." The alkali carrier may be caustic soda, the addition of sodium hydroxide effecting an adjustment of the pH results in an improved effect of bleaching agents for removing, for example, tea soil.
In einer bevorzugten Weiterbildung des Verfahrens ist vorgesehen, dass ein Programmschritt Desinfizieren vorgesehen ist. Dies erlaubt es, der Bildung von unangenehmen Gerüchen entgegenzuwirken, die entstehen können, wenn Geschirr tagelang in einer Geschirrspülmaschine gesammelt wird. Ursache sind die Abbauprodukte
von Mikroorganismen, die sich in einer Geschirrspülmaschine bilden. Dies ist insbesondere bei hohen Temperaturen, wie im Sommer, der Fall.In a preferred embodiment of the method it is provided that a program step disinfecting is provided. This makes it possible to counteract the formation of unpleasant odors, which can occur when dishes are collected for days in a dishwasher. Cause are the degradation products of microorganisms that form in a dishwasher. This is the case especially at high temperatures, as in summer.
Dabei ist bevorzugt vorgesehen, dass eine biozidwirkende Flüssigkeit zugegeben wird. Dabei kann es sich um Biozide gegen Bakterien (Bakterizide), gegen Pilze (Fungizide), gegen Keime (Mikrobizide), gegen Viren (Viruzide) und auch gegen Algen (Algizide) handeln, die die Ansiedlung und eventuelle Biofilmbildung entgegenwirken und so unangenehme Geruchsentwicklungen während längerer Standzeiten zu unterbinden.It is preferably provided that a biocidal fluid is added. These may be biocides against bacteria (bactericides), against fungi (fungicides), against germs (microbicides), against viruses (virucides) and also against algae (algicides), which counteract the colonization and possible biofilm formation and thus unpleasant odor development during to prevent longer service life.
Schließlich kann bevorzugt vorgesehen sein, dass in wenigstens einem Programmschritt ein Korrosionsschutzmittel, insbesondere ein Glasschutzkorrosionsschutzmittel zugegeben wird, dass der Glaskorrosion entgegenwirkt. Dabei ist bevorzugt vorgesehen, dass das Korrosionsschutzmittel wenigstens Zinksalz enthält. Es können jedoch auch andere, geeignete Korrosionsschutzmittel Verwendung finden.Finally, it can preferably be provided that in at least one program step, a corrosion protection agent, in particular a glass protection corrosion protection agent is added that counteracts the glass corrosion. It is preferably provided that the corrosion inhibitor contains at least zinc salt. However, other suitable corrosion inhibitors can be used.
Die Zugabe der Korrosionsschutzmittel erfolgt bevorzugt in einem Programmschritt Reinigen und/oder Klarspülen, kann jedoch auch während anderer Programmschritte erfolgen, wie bspw. während eines Zwischenspülschritts. Dabei ist bevorzugt vorgesehen, dass die Zugabe des Korrosionsschutzmittels zeitlich beabstandet zur Erhöhung des pH- Wertes, insbesondere durch Zugabe von Natronlauge, und/oder zur Zugabe von wenigstens einem Enzym und/oder zur Zugabe eines Komplexierstoffs erfolgt.The addition of the corrosion inhibitors is preferably carried out in a program step cleaning and / or rinsing, but can also be carried out during other program steps, such as. During a Zwischenspülschritts. In this case, it is preferably provided that the addition of the anticorrosion agent takes place temporally spaced to increase the pH, in particular by adding sodium hydroxide solution, and / or for the addition of at least one enzyme and / or for addition of a complexing agent.
Im Folgenden wird die Erfindung anhand eines Ausführungsbeispiels erläutert. Es zeigt die einzige Figur:In the following the invention will be explained with reference to an embodiment. It shows the only figure:
eine schematische Darstellung eines Temperaturprofils eines Spülprogrammes mit einer Vielzahl von Dosierungspunkten.a schematic representation of a temperature profile of a wash program with a variety of dosing points.
Dargestellt ist ein Temperaturverlauf eines normalen Spülprogrammes einer Haushalts- Geschirrspülmaschine mit den Schritten „Vorspülen", bei dem Spülflotte ohne Aufheizung umgewälzt wird, „Reinigen", bei dem die Spülflotte bis auf ca. 50 °C aufgeheizt wird und sich nach Waschphase anschließt, einen „Zwischenspülschritt", in dem Spülflotte ohne aufheizen umgewälzt wird, so wie einen „Klarspülschritt", in dem die Spülflotte bis auf ca. 65 °C aufgeheizt wird.
Während des Vorspülens wird gemäß dem Ausführungsbeispiels Natronlauge als Alkaliträger zusammen mit einem Dipergier- und/oder Komplexierstoff in einem Schritt 1 zugegeben, um so ein Aufquellen von Anschmutzungen zu erreichen, so dass die Reinigungswirkung von nachfolgenden Enzymen verbessert ist und die Wasserhärte beeinflussende Erdalkaliionen komplexiert werden.Shown is a temperature profile of a normal dishwashing program of a household dishwasher with the steps "prewash" is circulated in the wash liquor without heating, "cleaning" in which the wash liquor is heated to about 50 ° C and adjoins after washing phase, a "Intermediate rinse step", in which rinsing liquor is circulated without heating, as well as a "final rinse step", in which the rinsing liquor is heated up to about 65 ° C. During the pre-rinsing, according to the embodiment, caustic soda is added as an alkali carrier together with a dispersing and / or complexing agent in a step 1 so as to cause swelling so that the cleaning effect of subsequent enzymes is improved and alkaline earth metal ions affecting water hardness are complexed ,
Anschließend erfolgt das Reinigen, wobei zu Beginn das Enzym Amylase, zur Zersetzung von Stärkeverbindungen und/oder Polysachariden (Zuckerverbindung) in Schritt 2 zugegeben wird. Zeitlich versetzt, bspw. ca. 5 min später wird, das Enzym Protease in Schritt 3 zugegeben, um Proteine und/oder Peptide (Eiweißverbindungen) zu zersetzen.Subsequently, the cleaning is carried out, wherein at the beginning the enzyme amylase, for the decomposition of starch compounds and / or polysaccharides (sugar compound) in step 2 is added. Time-shifted, for example, about 5 min later, the enzyme protease is added in step 3 in order to decompose proteins and / or peptides (protein compounds).
Schließlich wird als letztes in einem Schritt 4 bei einer Temperatur von ca. 509C als Alkaliträger Natronlauge zugegeben, sodass sich der PH-Wert der Spülflotte erhöht, was die Wirkung von Enzymen während der folgenden Nachwaschphase verbessert.Finally, sodium hydroxide solution is the last added in a step 4 at a temperature of about 50 9 C as an alkali carrier, so that the pH of the wash liquor increases, which improves the effect of enzymes during the subsequent Nachwaschphase.
Es folgt ein Zwischenspülen, bei dem Spülflotte ohne Aufheizen umgewälzt wird.This is followed by intermediate rinsing in which rinsing water is circulated without heating up.
Als letzter Schritt erfolgt ein Klarspülen, bei dem die Spülflotte bis auf ca. 859C aufgeheizt wird. In einem Schritt 5 wird ein Dispergier- und/oder Komplexierstoff zugegeben, um Ionen, insbesondere Erdalkaliionen, zu komplexieren und zugleich durch diese Komplexierung von Metall- Ionen das Ablösen von Schmutz zu erleichtern, wie beispielsweise Teeanschmutzungen. Unmittelbar nachfolgend werden in einem Schritt 6 Wasserstoffperoxid als Bleichmittel sowie in einem Schritt 7 ein Bleichaktivator zugegeben, so dass die optimale Wirkung von Wasserstoffperoxid als Bleichmittel auch bei Temperaturen unterhalb von 80°C gegeben ist. Schließlich wird in einem Schritt 8 ein nicht-ionisches Tensid hinzugegeben, um durch Herabsetzung der Oberflächenspannung einen rückstandsfreien Trocknungsprozess zu gewährleisten, so dass beispielsweise auf Gläsern keine Trockenränder zurück bleiben.The final step is a rinse, in which the rinse liquor is heated to about 85 9 C. In a step 5, a dispersing and / or complexing agent is added in order to complex ions, in particular alkaline earth ions, and at the same time to facilitate the detachment of dirt, for example tea stains, by this complexation of metal ions. Immediately below, in a step 6, hydrogen peroxide as a bleaching agent and in a step 7 a bleach activator are added, so that the optimum effect of hydrogen peroxide as a bleaching agent is also given at temperatures below 80 ° C. Finally, in a step 8, a non-ionic surfactant is added to ensure a residue-free drying process by lowering the surface tension so that, for example, no dry edges remain on glasses.
Anschließend erfolgt der Trocknungsprozess des Geschirrs.Subsequently, the drying process of the dishes takes place.
Als Programmschritt eines Reinigerprogramms oder auch als Einzelschritt von einer Bedienperson manuell ausgelöst kann eine biozidwirkende Flüssigkeit zugegeben
werden. Insbesondere können Biozide gegen Bakterien (Bakterizide), gegen Pilze (Fungizide), gegen Keime (Mikrobizide), gegen Viren (Viruzide) und auch gegen Algen (Algizide) zugegeben werden, um so unangenehme Geruchsentwicklungen während längerer Standzeiten zu unterbinden.As a program step of a cleaner program or triggered manually by an operator manually, a biocidal fluid may be added become. In particular, biocides can be added against bacteria (bactericides), against fungi (fungicides), against germs (microbicides), against viruses (virucides) and also against algae (algicides) in order to prevent unpleasant odors during longer periods of use.
Es gibt verschiedene Möglichkeiten der Dosierung. Bspw. kann die Zugabe am Ende des Klarspülganges erfolgen, um das Wasser, das im Sumpf oder in den Leitungen verbleibt, zu desinfizieren. So kann die Bildung von Biofilme verhindert werden. Alternativ kann ein extra Hygienespülprogramm vorgesehen sein, dass in vorgegebenen Intervallen automatisch ausgeführt oder bei Bedarf manuell von einer Bedienperson ausgelöst wird. Während des Hygieneprogramms werden ca. 3I Wasser eingefüllt und es wird ausreichend biozidwirkender Wirkstoff zugegeben. Dann wird die den biozidwirkenden Wirkstoff enthaltende Flotte umgewälzt. Zusätzlich können noch andere Substanzen zur Wirkungsverbesserung hin zu gegeben werden, wie z.B. Dispergier- und Komplexierstoffe. Ergänzend kann eine Umwälzpumpe mit nur reduzierter Drehzahl betrieben werden, wobei zugleich eine Wasserweiche geschlossen ist, so dass Spülflotte nur in geringem Umfang aus Sprüharmen austritt. So werden nur die Leitungen und der Pumpensumpf gereinigt.There are different ways of dosing. For example. the addition may be made at the end of the rinse cycle to disinfect the water remaining in the sump or in the lines. Thus, the formation of biofilms can be prevented. Alternatively, an extra Hygienespülprogramm be provided that automatically executed at predetermined intervals or manually triggered if necessary by an operator. During the hygiene program, about 3 liters of water are added and sufficient biocidal active substance is added. Then, the liquor containing the biocidal drug is circulated. In addition, other substances may be added to improve the effects, e.g. Dispersing and complexing agents. In addition, a circulation pump can be operated with only reduced speed, wherein at the same time a water switch is closed, so that wash liquor exits only to a small extent from spray arms. So only the pipes and the pump sump are cleaned.
Des weiteren kann in wenigstens einem Programmschritt ein Korrosionsschutzmittel, insbesondere ein Glasschutzkorrosionsschutzmittel zugegeben wird, dass der Glaskorrosion entgegenwirkt, das bspw. Zinksalz enthält.Furthermore, in at least one program step, a corrosion protection agent, in particular a glass protection corrosion protection agent, can be added which counteracts glass corrosion, which contains, for example, zinc salt.
Die Zugabe der Korrosionsschutzmittel erfolgt in einem Programmschritt Reinigen und/oder Klarspülen, oder auch während eines anderen Programmschritts, wie bspw. während eines Zwischenspülschritts. Die Zugabe des Korrosionsschutzmittels erfolgt zeitlich beabstandet zur Erhöhung des pH-Wertes, insbesondere durch Zugabe von Natronlauge, und/oder zur Zugabe von wenigstens einem Enzym und/oder zur Zugabe eines Komplexierstoffs.
The addition of the corrosion inhibitors is carried out in a program step cleaning and / or rinsing, or even during another program step, such as. During an intermediate rinse step. The addition of the anticorrosive agent takes place temporally spaced to increase the pH, in particular by adding sodium hydroxide solution, and / or for the addition of at least one enzyme and / or for the addition of a complexing agent.
Claims
1. Verfahren zum Betreiben eines wasserführenden Haushaltsgeräts, insbesondere einer Haushalts-Geschirrspülmaschine, wobei das wasserführende Haushaltsgerät eine Programmsteuerung zur Durchführung einer Vielzahl von aufeinander folgenderA method of operating a water-conducting household appliance, in particular a domestic dishwasher, wherein the water-conducting domestic appliance a program control for performing a plurality of successive
Programmschritte aufweist und die Programmsteuerung wenigstens mit einem Reinigungsmitteldosiersystem in Wirkverbindung steht, dadurch gekennzeichnet, dass wenigstens während eines Programmschritts ein eine Funktion aufweisende Reinigersubstanz zudosiert wird.Program steps and the program control is at least operatively connected to a Reinigungsmitteldosiersystem, characterized in that at least during a program step, a cleaner having a function substance is added.
2. Verfahren nach Anspruch 1 , dadurch gekennzeichnet, dass eine Vielzahl, insbesondere 5 bis 7, eine Funktion aufweisende Reinigungssubstanzen zudosiert werden.2. The method according to claim 1, characterized in that a plurality, in particular 5 to 7, a function having cleaning substances are added.
3. Verfahren nach Anspruch 2, dadurch gekennzeichnet, dass während eines Programmschritts wenigstens zwei Reinigungssubstanzen zudosiert werden.3. The method according to claim 2, characterized in that during a program step at least two cleaning substances are added.
4. Verfahren nach Anspruch 3, dadurch gekennzeichnet, dass wenigstens zwei Reinigungssubstanzen gleichzeitig zudosiert werden.4. The method according to claim 3, characterized in that at least two cleaning substances are added simultaneously.
5. Verfahren nach einem der vorhergehenden Ansprüche 2 bis 5, dadurch gekennzeichnet, dass wenigstens ein erstes Enzym und ein zweites Enzym mit unterschiedlicher Funktion zeitlich beabstandet zudosiert werden.5. The method according to any one of the preceding claims 2 to 5, characterized in that at least a first enzyme and a second enzyme with different function are added spaced in time.
6. Verfahren nach Anspruch 5, dadurch gekennzeichnet, dass als erstes Enzym eine Stärkeverbindung und/oder Polysacheriede zersetzendes Enzym zudosiert wird.6. The method according to claim 5, characterized in that as the first enzyme, a starch compound and / or Polysacheriede decomposing enzyme is added.
7. Verfahren nach Anspruch 5 oder 6, dadurch gekennzeichnet, dass ein zweites Enzym ein Proteine und/oder Peptide zersetzendes Enzym zudosiert wird.7. The method according to claim 5 or 6, characterized in that a second enzyme is added to a protein and / or peptides decomposing enzyme.
8. Verfahren nach einem der Ansprüche 5 bis 7, dadurch gekennzeichnet, dass als weiteres Enzym ein Fettverbindungen zersetzendes Enzym zudosiert wird. 8. The method according to any one of claims 5 to 7, characterized in that as a further enzyme, a fatty compounds decomposing enzyme is added.
9. Verfahren nach einem der Ansprüche 5 bis 8, dadurch gekennzeichnet, dass zuerst das erste Enzym und ein Dispergier- und Komplexierstoff zudosiert werden.9. The method according to any one of claims 5 to 8, characterized in that first the first enzyme and a dispersing and complexing agent are metered.
10. Verfahren nach einem der vorhergehenden Ansprüche 5 bis 7, dadurch gekennzeichnet, dass wenigstens nach Zugabe des zweiten Enzyms der pH-Wert erhöht wird.10. The method according to any one of the preceding claims 5 to 7, characterized in that at least after addition of the second enzyme, the pH is increased.
1 1. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass wenigstens ein Bleichmittel zugegeben wird.1 1. A method according to any one of the preceding claims, characterized in that at least one bleaching agent is added.
12. Verfahren nach Anspruch 1 1 , dadurch gekennzeichnet, dass ein Bleichaktivator zugegeben wird.12. The method according to claim 1 1, characterized in that a bleach activator is added.
13. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass wenigstens Erdalkaliionen wenigstens teilweise komplexiert werden.13. The method according to any one of the preceding claims, characterized in that at least alkaline earth ions are at least partially complexed.
14. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Vielzahl der Programmschritte programmgesteuert ablaufen.14. The method according to any one of the preceding claims, characterized in that the plurality of program steps run programmatically.
15. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass wenigstens ein Programmschrittsensor gesteuert abläuft.15. The method according to any one of the preceding claims, characterized in that at least one program step sensor runs controlled.
16. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass ein Programmschritt Vorspülen vorgesehen ist, in dem Alkaliträger und ein Dispergier- und/oder Komplexierstoff zugegeben werden.16. The method according to any one of the preceding claims, characterized in that a pre-rinsing program step is provided in which alkali carriers and a dispersing and / or complexing agent are added.
17. Verfahren nach Anspruch 16, dadurch gekennzeichnet, dass im Programmschritt Vorspülen ein Enzym und/oder ein Tensid zugegeben werden.17. The method according to claim 16, characterized in that in the prerinsing step, an enzyme and / or a surfactant are added.
18. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass ein Programmschritt Reinigen vorgesehen ist, in dem ein Alkaliträger, ein Dispergier- und/oder Komplexierstoff und wenigstens zwei Enzyme im zeitlichen Abstand zugegeben werden. 18. The method according to any one of the preceding claims, characterized in that a program step cleaning is provided in which an alkali carrier, a dispersing and / or complexing agent and at least two enzymes are added at intervals.
19. Verfahren nach Anspruch 18, dadurch gekennzeichnet, dass in einem Programmschritt, insbesondere in einem Programmschritt Reinigen, ein fettspaltendes Enzym und/oder ein Tensid zugegeben wird.19. The method according to claim 18, characterized in that in a program step, in particular in a program step cleaning, a fat-splitting enzyme and / or a surfactant is added.
20. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass ein Programmschritt Zwischenspülen vorgesehen ist, in dem ein Alkaliträger und ein Dispergier- und/oder Komplexierstoff zugegeben werden.20. The method according to any one of the preceding claims, characterized in that a program step intermediate rinsing is provided, in which an alkali carrier and a dispersant and / or complexing agent are added.
21. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass ein Programmschritt Klarspülen vorgesehen ist, in dem ein Dispergier- und/oder21. The method according to any one of the preceding claims, characterized in that a program step rinsing is provided, in which a dispersing and / or
Komplexierstoff, ein Bleichmittel, ein Bleichaktivator und ein Tensid zugegeben werden.Complexing agent, a bleaching agent, a bleach activator and a surfactant may be added.
22. Verfahren nach Anspruch 21 , dadurch gekennzeichnet, dass im Programmschritt Klarspülen ein Alkaliträger zugegeben wird.22. The method according to claim 21, characterized in that in the program step rinsing an alkali carrier is added.
23. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass ein Programmschritt Desinfizieren vorgesehen ist.23. The method according to any one of the preceding claims, characterized in that a program step disinfecting is provided.
24. Verfahren nach Anspruch 23, dadurch gekennzeichnet, dass eine biozidwirkende Flüssigkeit zugegeben wird.24. The method according to claim 23, characterized in that a biocidal fluid is added.
25. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass in wenigstens einem Programmschritt ein Korrosionsschutzmittel, insbesondere ein Glasschutzkorrosionsschutzmittel zugegeben wird.25. The method according to any one of the preceding claims, characterized in that in at least one program step, a corrosion inhibitor, in particular a glass protection corrosion inhibitor is added.
26. Verfahren nach Anspruch 25, dadurch gekennzeichnet, dass das Korrosionsschutzmittel wenigstens Zinksalz enthält.26. The method according to claim 25, characterized in that the corrosion inhibitor contains at least zinc salt.
27. Verfahren nach Anspruch 25 oder 26, dadurch gekennzeichnet, dass das Korrosionsschutzmittel in einem Programmschritt Reinigen und/oder Klarspülen zugegeben wird. 27. The method according to claim 25 or 26, characterized in that the corrosion inhibitor is added in a program step cleaning and / or rinsing.
28. Verfahren nach einem der Ansprüche 25 bis 27, dadurch gekennzeichnet, dass die Zugabe des Korrosionsschutzmittels zeitlich beabstandet zur Erhöhung des pH- Wertes, insbesondere durch Zugabe von Natronlauge, und/oder zur Zugabe von wenigstens einem Enzym und/oder zur Zugabe eines Komplexierstoffs erfolgt. 28. The method according to any one of claims 25 to 27, characterized in that the addition of the corrosion inhibitor spaced in time to increase the pH, in particular by adding sodium hydroxide, and / or adding at least one enzyme and / or adding a complexing agent he follows.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL07803007T PL2073683T3 (en) | 2006-09-19 | 2007-08-29 | Method for operating a water-conducting domestic appliance |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102006043914A DE102006043914A1 (en) | 2006-09-19 | 2006-09-19 | Method for operating a water-conducting household appliance |
| PCT/EP2007/058990 WO2008034696A1 (en) | 2006-09-19 | 2007-08-29 | Method for operating a water-conducting domestic appliance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2073683A1 true EP2073683A1 (en) | 2009-07-01 |
| EP2073683B1 EP2073683B1 (en) | 2011-10-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP07803007A Active EP2073683B1 (en) | 2006-09-19 | 2007-08-29 | Method for operating a water-conducting domestic appliance |
Country Status (7)
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| US (1) | US8961699B2 (en) |
| EP (1) | EP2073683B1 (en) |
| AT (1) | ATE529033T1 (en) |
| DE (1) | DE102006043914A1 (en) |
| ES (1) | ES2371572T3 (en) |
| PL (1) | PL2073683T3 (en) |
| WO (1) | WO2008034696A1 (en) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102006043915A1 (en) | 2006-09-19 | 2008-03-27 | BSH Bosch und Siemens Hausgeräte GmbH | Water-conducting household appliance with a detergent dosing system and cartridge therefor |
| DE102008026932A1 (en) | 2008-06-05 | 2009-12-10 | BSH Bosch und Siemens Hausgeräte GmbH | Gel- or liquid cleaner for dishwashers, comprises two components, which are separated from each other, contain one of the ingredients of enzyme, alkali carrier or bleaching agent and have glass protective agents and/or odorous substances |
| DE102010002749A1 (en) * | 2010-03-11 | 2011-09-15 | Henkel Ag & Co. Kgaa | Process for the release of preparations in a dishwasher and dosing system for carrying out the process |
| DE102010027993A1 (en) * | 2010-04-20 | 2012-05-31 | Henkel Ag & Co. Kgaa | Dosing system for a water-conducting household appliance |
| US8487577B2 (en) * | 2010-08-06 | 2013-07-16 | Nidec Motor Corporation | Method and apparatus for motor control |
| KR101882182B1 (en) * | 2011-11-22 | 2018-07-27 | 삼성전자주식회사 | Dish washer and method for controlling the same |
| GB201413859D0 (en) | 2014-08-05 | 2014-09-17 | Reckitt Benckiser Brands Ltd | New automatic washing machine and method |
| DE102014224508A1 (en) * | 2014-12-01 | 2016-06-02 | BSH Hausgeräte GmbH | Dishwasher and method for operating such |
| DE102015226572A1 (en) * | 2015-12-22 | 2017-06-22 | BSH Hausgeräte GmbH | Water-conducting household appliance and method for operating a water-conducting household appliance |
| GB2549804B (en) | 2016-04-29 | 2018-11-07 | Reckitt Benckiser Finish Bv | New dishwashing machine and method |
| DE102016217011A1 (en) * | 2016-09-07 | 2018-03-08 | BSH Hausgeräte GmbH | Device, water-conducting household appliance and method for adjusting a washing program |
| CN110997117B (en) | 2017-06-30 | 2023-08-01 | 戴弗西公司 | Membrane cleaning solution and method for accelerating membrane cleaning using the same |
| CN111867436A (en) * | 2018-03-09 | 2020-10-30 | 汉高股份有限及两合公司 | Method for setting the release time of a cleaning agent during a cleaning cycle in a household appliance |
| EP3656272A1 (en) * | 2018-11-23 | 2020-05-27 | Henkel AG & Co. KGaA | Method for removing stains during a cleaning cycle of a household appliance |
| DE102022201954A1 (en) | 2022-02-25 | 2023-08-31 | BSH Hausgeräte GmbH | Process, computer program product and dishwasher |
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| DE3525365A1 (en) | 1985-07-16 | 1987-01-29 | Bosch Siemens Hausgeraete | Automatically controlled washing machine |
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| US4908148A (en) * | 1989-02-13 | 1990-03-13 | The Procter & Gamble Company | Rinse additive compositions providing glassware protection comprising insoluble zinc compounds |
| US5094771A (en) * | 1991-05-07 | 1992-03-10 | Colgate-Palmolive Co. | Nonaqueous liquid automatic dishwasher detergent composition |
| DE4219620A1 (en) | 1992-06-16 | 1993-12-23 | Licentia Gmbh | Domestic dishwasher detergent feed - has separate and time displaced feeds of different media to the washing water |
| US20020028754A1 (en) * | 2000-07-21 | 2002-03-07 | Novozymes A/S | Antimicrobial compositions |
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| DE10104469A1 (en) * | 2001-02-01 | 2002-08-08 | Basf Ag | Copolymers to prevent glass corrosion |
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| DE10313455A1 (en) * | 2003-03-25 | 2004-10-14 | Henkel Kgaa | Detergents and cleaning agents |
| US20050022314A1 (en) * | 2003-07-30 | 2005-02-03 | Hal Ambuter | Processes |
| DE10358969A1 (en) * | 2003-12-16 | 2005-07-21 | BSH Bosch und Siemens Hausgeräte GmbH | Dishwasher with a metering device for aggregate and associated method |
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2006
- 2006-09-19 DE DE102006043914A patent/DE102006043914A1/en active Pending
-
2007
- 2007-08-29 WO PCT/EP2007/058990 patent/WO2008034696A1/en active Application Filing
- 2007-08-29 PL PL07803007T patent/PL2073683T3/en unknown
- 2007-08-29 US US12/311,092 patent/US8961699B2/en active Active
- 2007-08-29 EP EP07803007A patent/EP2073683B1/en active Active
- 2007-08-29 ES ES07803007T patent/ES2371572T3/en active Active
- 2007-08-29 AT AT07803007T patent/ATE529033T1/en active
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| Title |
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| See references of WO2008034696A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| PL2073683T3 (en) | 2012-03-30 |
| WO2008034696A1 (en) | 2008-03-27 |
| EP2073683B1 (en) | 2011-10-19 |
| US20090314313A1 (en) | 2009-12-24 |
| ATE529033T1 (en) | 2011-11-15 |
| DE102006043914A1 (en) | 2008-03-27 |
| ES2371572T3 (en) | 2012-01-05 |
| US8961699B2 (en) | 2015-02-24 |
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