DE19534431A1 - Degree of dirtiness determining method for washing textile - Google Patents
Degree of dirtiness determining method for washing textileInfo
- Publication number
- DE19534431A1 DE19534431A1 DE19534431A DE19534431A DE19534431A1 DE 19534431 A1 DE19534431 A1 DE 19534431A1 DE 19534431 A DE19534431 A DE 19534431A DE 19534431 A DE19534431 A DE 19534431A DE 19534431 A1 DE19534431 A1 DE 19534431A1
- Authority
- DE
- Germany
- Prior art keywords
- conductivity
- degree
- laundry
- soaking
- washing
- 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.)
- Withdrawn
Links
- 238000000034 method Methods 0.000 title claims abstract description 29
- 238000005406 washing Methods 0.000 title claims abstract description 24
- 239000004753 textile Substances 0.000 title claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 17
- 238000002791 soaking Methods 0.000 claims abstract description 16
- 238000009736 wetting Methods 0.000 claims abstract description 6
- 239000003599 detergent Substances 0.000 claims description 14
- 239000007788 liquid Substances 0.000 claims description 4
- 238000005086 pumping Methods 0.000 claims description 2
- 238000011109 contamination Methods 0.000 claims 2
- 238000011088 calibration curve Methods 0.000 claims 1
- 239000012459 cleaning agent Substances 0.000 claims 1
- 230000000007 visual effect Effects 0.000 claims 1
- 230000001419 dependent effect Effects 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 206010057362 Underdose Diseases 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
- G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
- G01N27/06—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a liquid
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
- D06F34/14—Arrangements for detecting or measuring specific parameters
- D06F34/22—Condition of the washing liquid, e.g. turbidity
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
- D06F2103/20—Washing liquid condition, e.g. turbidity
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
- D06F2105/42—Detergent or additive supply
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
- D06F2105/58—Indications or alarms to the control system or to the user
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
- D06F2105/62—Stopping or disabling machine operation
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
- G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
- G01N27/06—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a liquid
- G01N27/08—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a liquid which is flowing continuously
- G01N27/10—Investigation or analysis specially adapted for controlling or monitoring operations or for signalling
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
- Control Of Washing Machine And Dryer (AREA)
Abstract
Description
Die Erfindung betrifft ein Verfahren zum Bestimmen des Verschmutzungsgrades von textilem Waschgut, welches vorzugsweise bei Waschprozessen zum Festlegen der notwendigen Waschmitteldosierung verwendet wird, sowie eine Einrichtung zur Durchführung des Verfahrens, wobei diese vorzugsweise auf die Anwendung in Waschmaschinen gerichtet sind, gemäß dem Oberbegriff des Anspruches 1 bzw. 8.The invention relates to a method for determining the Degree of soiling of textile laundry, which is preferred in washing processes to determine the necessary Detergent dosage is used, as well as a facility to carry out the process, these preferably for use in washing machines are according to the preamble of claim 1 and 8 respectively.
Kriterien für das Dosieren von Waschmittel in Haushaltwaschmaschinen sind die Wäschemenge, die Wasserhärte und der Verschmutzungsgrad des textilen Waschgutes. Während der Bestimmung der Wäschemenge z. B. über die Auswertung der zugeflossenen Wassermenge oder auch über die Auswertung der Motor-Drehmomente in modernen Haushaltswaschmaschinen automatisch erfolgen kann, erfolgt die Bestimmung der Wasserhärte und des Verschmutzungsgrades der Wäsche sowie die Festlegung der verwendeten Waschmittelmenge nur sehr subjektiv durch den Benutzer des Hausgerätes.Criteria for dosing detergent in household washing machines are the amount of laundry, the water hardness and the degree of soiling of the laundry. During the determination of the amount of laundry z. B. about the evaluation the amount of water that flows in or also via the Evaluation of the motor torques in modern household washing machines can be done automatically, the Determination of water hardness and degree of pollution the laundry and the determination of the amount of detergent used only very subjective by the user of the Household appliance.
Eine hinreichend genaue Dosierung des Waschmittels ist somit nicht möglich, so daß es häufig entweder zu einer über- oder Unterdosierung kommt.Adequate dosage of detergent is necessary thus not possible, so that it often becomes either a overdosing or underdosing comes.
Während eine Überdosierung die Abwasser- und damit die Umweltbelastung erhöht, spiegelt sich eine Unterdosierung in einem schlechten Waschergebnis wider.During an overdose the wastewater and thus the Environmental pollution increases, an underdose is reflected reflected in a poor wash result.
Es sind zwar eine Vielzahl von Einrichtungen und Verfahren zur Bestimmung der Flottenverschmutzung bekannt, jedoch sind bisher keine technischen Verfahren bzw. Einrichtungen für das Bestimmen des Verschmutzungsgrades der Wäsche bekannt.There are a variety of facilities and procedures known for determining fleet pollution, however are not yet any technical processes or facilities for determining the degree of pollution of the Laundry known.
Der vorliegenden Erfindung liegt daher die Aufgabe zugrunde, ein Verfahren zum Bestimmen des Verschmutzungsgrades des Waschgutes zu finden und eine Einrichtung zur Durchführung des Verfahrens zu schaffen.The present invention is therefore based on the object a method for determining the degree of pollution to find the laundry and a facility for To carry out the procedure.
Erfindungsgemäß wird diese Aufgabe durch die im kennzeichnenden Teil von Anspruch 1 bzw. 8 angegebenen Merkmale gelöst, wobei auf der Basis der Messung der elektrischen Leitfähigkeit des Waschwassers der Verschmutzungsgrad des textilen Waschgutes zu Beginn des Waschprozesses ermittelt wird.According to the invention, this task is characterized by Part of claim 1 and 8 specified features solved, being based on the measurement of electrical Conductivity of the washing water the degree of pollution of the textile laundry at the beginning of the washing process is determined.
Der wesentliche Vorteil des erfindungsgemäßen Verfahrens besteht darin, daß das Waschgut vor der Zugabe des Waschmittels im Wasser eingeweicht und durch Ermitteln des zeitlichen Verlaufes der Leitfähigkeit eine verschmutzungsabhängige automatische Steuerung der Waschmitteldosierung anhand des Verschmutzungsgrades der Wäsche möglich wird, wodurch ein über- oder Unterdosieren des Waschmittels bzw. waschaktiver Substanzen vermieden wird.The main advantage of the method according to the invention is that the laundry before adding the detergent soaked in water and by determining the time course of the conductivity a pollution-dependent automatic control of detergent dosing possible based on the degree of soiling of the laundry is, whereby an overdosing or underdosing of Detergent or detergent substances is avoided.
Einrichtungsseitig ist die Anwendung berührungsloser Leitfähigkeits-Meßverfahren mittels kapazitiver Elektroden technisch und wirtschaftlich so vorteilhaft, daß ein serienmäßiger Einsatz, vor allem bei Textilreinigungsmaschinen, für den Haushaltbereich möglich ist.On the facility side, the application is non-contact Conductivity measurement using capacitive electrodes technically and economically so advantageous that a standard use, especially in textile cleaning machines, is possible for the household sector.
Weitere vorteilhafte Ausgestaltungen und Weiterbildungen der Erfindung sind aus den Unteransprüchen und aus dem nachfolgenden anhand der Zeichnungen prinzipmäßig beschriebenen Ausführungsbeispiel ersichtlich.Further advantageous refinements and developments the invention are from the dependent claims and from the described in principle below with reference to the drawings Embodiment can be seen.
Es zeigtIt shows
Fig. 1 eine graphische Darstellung der Zunahme der Leitfähigkeitsänderung in Abhängigkeit von der Zeit bei unterschiedlichem Verschmutzungsgrad des Waschgutes, Fig. 1 is a graphical representation of the increase in the change in conductivity as a function of time at different degree of soiling of the laundry,
Fig. 2 eine prinzipielle, schematische Anordnung der für die Durchführung des Verfahrens erforderlichen Einrichtung an einer Waschmaschine. Fig. 2 shows a basic, schematic arrangement of the equipment required for performing the method on a washing machine.
Wie aus Fig. 1 ersichtlich, erfolgt die Bestimmung des Verschmutzungsgrades des textilen Waschgutes zu Beginn des Waschprozesses. Das Waschgut wird vor der Zugabe des Waschmittels im zugeflossenen Wasser eingeweicht und dabei der zeitliche Verlauf der Leitfähigkeit mit einer Leitfähigkeitsmeßzelle ermittelt.As can be seen from FIG. 1, the degree of soiling of the textile laundry is determined at the beginning of the washing process. Before the detergent is added, the laundry is soaked in the incoming water and the conductance over time is determined with a conductivity measuring cell.
Durch das Lösen von Schmutzanteilen aus dem Waschgut steigt die Leitfähigkeit während des Einweichens gegenüber der Leitfähigkeit des zugeflossenen Wassers an. Der Einweichvorgang wird beendet (te), wenn keine wesentliche Änderung der Leitfähigkeit mehr auftritt.By loosening dirt from the laundry the conductivity increases during soaking the conductivity of the inflowing water. The soaking process is ended (te) if no significant Change in conductivity occurs more.
Unter der Annahme etwa gleicher Anteile der verschiedensten Schmutzarten im Waschgut ist die Differenz zwischen den Leitfähigkeitswerten am Ende und zu Beginn des Einweichvorgangs ein Maß für den Verschmutzungsgrad des Waschgutes.Assuming roughly equal proportions of the most diverse Types of dirt in the laundry is the difference between the conductivity values at the end and at the beginning of the soaking process a measure of the degree of pollution of the Laundry.
Ebenso läßt sich der Verschmutzungsgrad aus dem Wert des maximalen Anstiegs des zeitlichen Verlaufs der Leitfähigkeit während des Einweichens bestimmen.The degree of pollution can also be determined from the value of the maximum increase in the conductivity over time determine during soaking.
Dazu sind entsprechende Grenzwerte der Leitfähigkeitsdifferenz, z. B. für eine gestufte Einteilung des Verschmutzungsgrades, festzulegen.Corresponding limit values of the conductivity difference are e.g. B. for a graded classification of the degree of pollution, to be determined.
Des weiteren ist es möglich, den Verschmutzungsgrad stufenlos durch eine vorgegebene Kalibrierkennlinie in Abhängigkeit von der Leitfähigkeitsänderung zu bestimmen. It is also possible to determine the degree of pollution infinitely by a given calibration characteristic in Determine dependence on the change in conductivity.
Bei Geräten mit unterschiedlichen Wasserfüllmengen, deren Größe durch die im Gerät enthaltene Waschgutmenge bestimmt wird, ist es für das Festlegen füllstandsunabhängiger Verschmutzungsgrenzwerte vorteilhaft, die Leitfähigkeitsänderung auf die Wasser- und Waschgutmenge zu normieren.For devices with different amounts of water, their Size by the amount of laundry contained in the device is determined, it is more level-independent for setting Pollution limit values advantageous, the change in conductivity towards the amount of water and laundry normalize.
Der Einweichvorgang kann programmsteuerungsseitig beendet werden, wenn keine wesentliche Zunahme der Leitfähigkeit mehr auftritt oder wenn der Anstieg des zeitlichen Verlaufs der Leitfähigkeit sein Maximum erreicht hat.The soaking process can be ended on the program control side if there is no significant increase in conductivity more occurs or when the increase in temporal Course of the conductivity has reached its maximum.
Die Fig. 2 zeigt eine prinzipielle, schematische Anordnung der für die Durchführung des Verfahrens erforderlichen Einrichtung an einer Waschmaschine, wobei die für eine Waschmaschine üblichen Baugruppen, die für diese Erfindung nicht relevant sind, zeichnerisch nicht dargestellt wurden. FIG. 2 shows a basic, schematic arrangement of the device on a washing machine required for carrying out the method, the assemblies customary for a washing machine, which are not relevant to this invention, not being shown in the drawing.
Eine Leitfähigkeitsmeßzelle 1a bzw. 1b ist im die Waschflüssigkeit enthaltenden Laugenbehälter 2 der Waschmaschine oder in einem Waschwasserzu- oder -ablauf einer Umpumpeinrichtung 3 der Waschmaschine angeordnet. Mit dieser Leitfähigkeitsmeßzelle 1a oder 1b wird während des Einweichvorgangs bzw. Benetzens des Waschgutes die Änderung der Leitfähigkeit bei bewegter oder auch bei stillstehender Flüssigkeit gemessen und daraus durch eine Elektronikeinheit 4 der Verschmutzungsgrad des Waschgutes bestimmt. Je nach Größe des Verschmutzungsgrades steuert die Elektronikeinheit 4 die Zugabe von Waschmittel aus einer automatischen Dosiereinrichtung 5 und/oder zeigt den Verschmutzungsgrad auf einem Display 6 für eine manuelle Dosierung des Waschmittels an.A conductivity measuring cell 1 a or 1 b is arranged in the washing liquid-containing tub 2 of the washing machine or in a washing water inlet or outlet of a pumping device 3 of the washing machine. With this conductivity measuring cell 1 a or 1 b, the change in conductivity is measured during the soaking process or wetting of the items to be washed when the liquid is in motion or when the liquid is at a standstill and the degree of soiling of the items to be washed is determined therefrom by an electronic unit 4 . Depending on the size of the degree of soiling, the electronics unit 4 controls the addition of detergent from an automatic metering device 5 and / or shows the degree of soiling on a display 6 for manual metering of the detergent.
Ferner wird über ein Steuersignal an die Programmsteuereinrichtung der Waschmaschine der Einweichvorgang beendet und das angewählte Programm entsprechend fortgesetzt.Furthermore, a control signal is sent to the program control device the washing machine ends the soaking process and the selected program continues accordingly.
Zur Messung der Leitfähigkeit eignen sich alle Einrichtungen, die die Leitfähigkeit in einem Bereich von 0 bis 4 mS/cm erfassen. Um eine möglichst hohe Funktionssicherheit und eine lange Lebensdauer dieser Einrichtung in den Haushaltgeräten zu gewährleisten, ist der Einsatz kontaktloser Leitfähigkeitssensoren auf Grundlage kapazitiver Meßprinzipien im Vergleich zu schnell korrodierenden Sensoren mit Metallelektroden vorteilhaft.All devices are suitable for measuring the conductivity, which the conductivity in a range from 0 to Record 4 mS / cm. To ensure the highest possible functional reliability and long life of this facility in the To ensure household appliances, the use of contactless Conductivity sensors based on capacitive Measuring principles compared to quickly corroding ones Sensors with metal electrodes advantageous.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19534431A DE19534431A1 (en) | 1995-09-16 | 1995-09-16 | Degree of dirtiness determining method for washing textile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19534431A DE19534431A1 (en) | 1995-09-16 | 1995-09-16 | Degree of dirtiness determining method for washing textile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE19534431A1 true DE19534431A1 (en) | 1997-03-20 |
Family
ID=7772379
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19534431A Withdrawn DE19534431A1 (en) | 1995-09-16 | 1995-09-16 | Degree of dirtiness determining method for washing textile |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE19534431A1 (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19959310A1 (en) * | 1999-12-09 | 2001-06-21 | Henkel Ecolab Gmbh & Co Ohg | Measuring and controlling in washing, cleaning and disinfection processes |
| DE10011692A1 (en) * | 2000-03-10 | 2001-09-13 | Aweco Appliance Sys Gmbh & Co | Method by which the water hardness in a dish or clothes washing machine is controlled to ensure optimum cleaning performance has at least one sensor in the rinse water circuit |
| EP1657344A1 (en) * | 2004-11-12 | 2006-05-17 | Electrolux Home Products Corporation N.V. | Method for washing sportswear |
| EP2243416A1 (en) | 2009-04-24 | 2010-10-27 | Electrolux Home Products Corporation N.V. | Method for operating a dishwasher |
| WO2014058673A1 (en) * | 2012-10-08 | 2014-04-17 | 3M Innovative Properties Company | An electronic indicator for monitoring efficacy of a cleaning cycle |
| WO2015197106A1 (en) * | 2014-06-24 | 2015-12-30 | Electrolux Appliances Aktiebolag | Method for operating a laundry washing appliance and laundry washing appliance implementing the same |
| CN107268233A (en) * | 2017-07-10 | 2017-10-20 | 青岛海尔洗衣机有限公司 | A kind of control method for washing machine and washing machine |
| US10400377B2 (en) | 2014-06-24 | 2019-09-03 | Electrolux Appliances Aktiebolag | Method for operating a washing appliance and washing appliance |
| US10508375B2 (en) | 2014-06-24 | 2019-12-17 | Electrolux Appliances Aktiebolag | Method for operating a washing appliance and washing appliance |
| CN112111882A (en) * | 2020-09-17 | 2020-12-22 | 新建特阔漂整(南通)有限公司 | Intelligent digital control water washing method |
| US11225746B2 (en) | 2018-08-27 | 2022-01-18 | Ecolab Usa Inc. | System and technique for extracting particulate-containing liquid samples without filtration |
-
1995
- 1995-09-16 DE DE19534431A patent/DE19534431A1/en not_active Withdrawn
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19959310A1 (en) * | 1999-12-09 | 2001-06-21 | Henkel Ecolab Gmbh & Co Ohg | Measuring and controlling in washing, cleaning and disinfection processes |
| DE10011692A1 (en) * | 2000-03-10 | 2001-09-13 | Aweco Appliance Sys Gmbh & Co | Method by which the water hardness in a dish or clothes washing machine is controlled to ensure optimum cleaning performance has at least one sensor in the rinse water circuit |
| EP1657344A1 (en) * | 2004-11-12 | 2006-05-17 | Electrolux Home Products Corporation N.V. | Method for washing sportswear |
| US7530134B2 (en) | 2004-11-12 | 2009-05-12 | Electrolux Home Products Corporation N.V. | Method for washing sportswear |
| EP2243416A1 (en) | 2009-04-24 | 2010-10-27 | Electrolux Home Products Corporation N.V. | Method for operating a dishwasher |
| EP2508113A1 (en) | 2009-04-24 | 2012-10-10 | Electrolux Home Products Corporation N.V. | Method for operating a dishwasher |
| US8778090B2 (en) | 2009-04-24 | 2014-07-15 | Electrolux Home Products Corporation N.V. | Method for operating a dishwasher |
| US9575022B2 (en) | 2012-10-08 | 2017-02-21 | 3M Innovative Properties Company | Electronic indicator for monitoring efficacy of a cleaning cycle |
| WO2014058673A1 (en) * | 2012-10-08 | 2014-04-17 | 3M Innovative Properties Company | An electronic indicator for monitoring efficacy of a cleaning cycle |
| WO2015197106A1 (en) * | 2014-06-24 | 2015-12-30 | Electrolux Appliances Aktiebolag | Method for operating a laundry washing appliance and laundry washing appliance implementing the same |
| US10400377B2 (en) | 2014-06-24 | 2019-09-03 | Electrolux Appliances Aktiebolag | Method for operating a washing appliance and washing appliance |
| US10508374B2 (en) | 2014-06-24 | 2019-12-17 | Electrolux Appliances Aktiebolag | Method for operating a laundry washing appliance and laundry washing appliance implementing the same |
| US10508375B2 (en) | 2014-06-24 | 2019-12-17 | Electrolux Appliances Aktiebolag | Method for operating a washing appliance and washing appliance |
| CN107268233A (en) * | 2017-07-10 | 2017-10-20 | 青岛海尔洗衣机有限公司 | A kind of control method for washing machine and washing machine |
| CN107268233B (en) * | 2017-07-10 | 2022-04-05 | 青岛海尔洗衣机有限公司 | Washing machine control method and washing machine |
| US11225746B2 (en) | 2018-08-27 | 2022-01-18 | Ecolab Usa Inc. | System and technique for extracting particulate-containing liquid samples without filtration |
| US11739460B2 (en) | 2018-08-27 | 2023-08-29 | Ecolab Usa Inc. | System and technique for extracting particulate-containing liquid samples without filtration |
| CN112111882A (en) * | 2020-09-17 | 2020-12-22 | 新建特阔漂整(南通)有限公司 | Intelligent digital control water washing method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE3002786C2 (en) | Method and arrangement for program control of a washing machine | |
| DE2920492C2 (en) | ||
| WO2016146313A1 (en) | Method for operating a washing machine having an electrochemical sensor and washing machine suitable therefor | |
| DE2854148A1 (en) | METHOD AND DEVICE FOR CONTROLLING THE FLUSHING IN A WASHING MACHINE | |
| DE102007042076B4 (en) | Dishwasher with adjustable circulation pump and method for washing dishes | |
| DE69110356T2 (en) | Apparatus for measuring the amount of water in a washing machine. | |
| DE19534431A1 (en) | Degree of dirtiness determining method for washing textile | |
| DE3904222A1 (en) | METHOD AND DEVICE FOR PROGRAM CONTROL OF WASHING MACHINES | |
| DE69115442T2 (en) | Method and device for detecting the type of laundry in a washing machine or the like | |
| DE19721976B4 (en) | Method for determining an inadmissibly high degree of calcification in a water-conducting domestic appliance | |
| WO1994023286A1 (en) | Process for measuring the degree of soil of a wash bath | |
| DE69012045T2 (en) | Improved washing machine. | |
| DE19650915A1 (en) | Household washing machine | |
| DE19629806B4 (en) | Washing machine or dishwasher | |
| WO2016146321A1 (en) | Method for operating a washing machine having an impedance sensor and washing machine suitable therefor | |
| EP0030602B1 (en) | Method and apparatus of rinsing washed laundry in a programme-controlled washing machine | |
| DE102004022682B3 (en) | Method for detecting a fault of a measuring device for detecting the amount of water in dishwashers | |
| WO2016156068A1 (en) | Method for operating a washing machine with improved foam detection owing to drum rotation speed evaluation, and washing machine suitable therefor | |
| DE4038802A1 (en) | CONTROL FOR AN ELECTRICAL HOME APPLIANCE | |
| DD217557A1 (en) | METHOD FOR REGULATING THE CLEANING OR BZW. SPRAY ADDITIVE IN WASHING MACHINES | |
| DE19541719A1 (en) | Determining harness of water used as solvent | |
| DE4219276A1 (en) | Washing or dishwashing machine - has programme control and measurement device for degree of dirtiness of washing or rinsing water | |
| EP0862892B1 (en) | Household apparatus with a measuring device for determining the contamination degree of the cleaning liquid | |
| DE102015204538A1 (en) | Washing machine with electrochemical water hardness determination and method for its operation | |
| EP0589244B1 (en) | Method for monitoring and controlling the programme progress of a household apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8141 | Disposal/no request for examination | ||
| 8170 | Reinstatement of the former position | ||
| 8141 | Disposal/no request for examination |