EP2183422A1 - Method for the treatment of washing and programme-controlled washing machine suitable therefor - Google Patents
Method for the treatment of washing and programme-controlled washing machine suitable thereforInfo
- Publication number
- EP2183422A1 EP2183422A1 EP08774740A EP08774740A EP2183422A1 EP 2183422 A1 EP2183422 A1 EP 2183422A1 EP 08774740 A EP08774740 A EP 08774740A EP 08774740 A EP08774740 A EP 08774740A EP 2183422 A1 EP2183422 A1 EP 2183422A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- drum
- laundry
- water
- amount
- speed
- 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 43
- 238000005406 washing Methods 0.000 title claims abstract description 34
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 49
- 238000010438 heat treatment Methods 0.000 claims abstract description 14
- 238000009736 wetting Methods 0.000 claims abstract description 9
- 239000007788 liquid Substances 0.000 claims abstract description 6
- 239000006260 foam Substances 0.000 claims description 21
- 230000008569 process Effects 0.000 claims description 11
- FGUUSXIOTUKUDN-IBGZPJMESA-N C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 Chemical compound C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 FGUUSXIOTUKUDN-IBGZPJMESA-N 0.000 claims description 3
- 238000010936 aqueous wash Methods 0.000 claims description 3
- 230000003213 activating effect Effects 0.000 abstract 1
- 239000003599 detergent Substances 0.000 abstract 1
- 230000002706 hydrostatic effect Effects 0.000 description 8
- 101150114468 TUB1 gene Proteins 0.000 description 6
- 230000009467 reduction Effects 0.000 description 5
- 229920000742 Cotton Polymers 0.000 description 4
- 239000004744 fabric Substances 0.000 description 4
- GNFTZDOKVXKIBK-UHFFFAOYSA-N 3-(2-methoxyethoxy)benzohydrazide Chemical compound COCCOC1=CC=CC(C(=O)NN)=C1 GNFTZDOKVXKIBK-UHFFFAOYSA-N 0.000 description 3
- 230000009471 action Effects 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 230000002123 temporal effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
Classifications
-
- 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
- D06F35/00—Washing machines, apparatus, or methods not otherwise provided for
- D06F35/005—Methods for washing, rinsing or spin-drying
-
- 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
- D06F35/00—Washing machines, apparatus, or methods not otherwise provided for
- D06F35/005—Methods for washing, rinsing or spin-drying
- D06F35/006—Methods for washing, rinsing or spin-drying for washing or rinsing only
Definitions
- the invention relates to a method for treating laundry in a program-controlled washing machine and to a washing machine which is particularly suitable for carrying out this method.
- the laundry to be washed only with a wash liquor also referred to as "liquor” comprising treated an amount of water sufficient that the laundry to be washed is saturated with water and a remaining, the smallest possible free fleet , generally 2 to 3 liters, allows replacement between the heater and the wash liquor to heat the wash liquor and laundry, ensured by a suitable method of controlling the level of water in the drum and adjusting the amount of water to the speed of the wash.
- the free liquor after deducting the amount of water bound in the wash, is equal to the amount of water put into the washing machine
- Cotton fabric binds about 200% of its own weight, so that a load of 6 kg of cotton fabric binds about 12 liters of water.
- DE 10 2004 039 662 A1 describes a program-controlled washing machine with a wetting process which can be adapted to the required amount of water in a washing drum rotatably mounted in a tub about a non-vertical axis by means of a water supply system and a control device, wherein the feed of water is temporally controllable in the tub and the wetting process in as many phases (Ph1 to Ph3) is divided, as quantity levels (small, medium, large) are provided for the laundry to be treated.
- the energy consumption of a washing machine is essentially determined by the energy required for the heating of the water.
- a reduction in the amount of water in the washing machine would therefore be desirable, in particular a reduction in the amount of free liquor.
- the heat transfer from the heater to the laundry must be effected by the free liquor.
- a further reduction of the fleet and thus a reduction in energy consumption are thus difficult to achieve.
- the object of the invention is therefore to provide a method for treating laundry in a program-controlled washing machine, in which energy can be saved compared to known methods.
- the object is also to show a suitable for carrying out this process washing machine.
- the invention thus relates to a method for treating laundry with an aqueous wash liquor in a program-controlled washing machine with a liquor drain system arranged at the bottom of a tub with a drain pump, a heater, a sensor for determining the amount of a liquid in the tub or a foam, wherein a Sensor signal is tracked during the process, and a drum, and wherein the method comprises the following steps: a) wetting a load amount (a1) of laundry with an amount of water (a2), which is lower than that required to saturate the wash with water Quantity (a3) of water (“saturation amount”), b) rotating the drum at a speed U 1 which is greater than an application speed U A of the laundry until a space between the tub and the drum is filled with foam and the foam enters the interior of the drum, and c) turning on the heater and heating the foam and thus the laundry.
- the application speed U A of the laundry is the rotational speed of the drum at which the laundry can rest against an inner wall of the drum, for example a speed in the range of 300 to 500 revolutions per minute.
- a water amount (a2) of 10 liters could be used.
- the saturation amount (a3) of water is about twice a loading amount (a1).
- the saturation amount (a3) may be significantly lower.
- the values for the saturation amount (a3) are known per se, so that the amount of water (a2) can be specified in a wash program.
- the loading amount (a1) or the type of laundry to be treated, or both, can be determined by a measure known per se.
- a hydrostatic pressure p measured with the aid of the sensor can be compared with the filled-in amount of water.
- the laundry in the drum absorbs water, which therefore can not contribute to an increase in the hydrostatic pressure.
- the amount of laundry (load (a1)) and its degree of wetness (degree of wetting) determine.
- the duration of wetting in step a) can be matched very precisely to the predetermined amount of laundry.
- step a) is completed and step b) can be started.
- the amount of water (a2), based on the weight of the loading amount (a1) is 90 to 170%, particularly preferably 130 to 150%.
- step b) of the process a portion of the wash liquor is spun off and conveyed into a gap between the drum and the tub. If the amount of water increases so much that the rotating drum dips into the wash liquor, the wash liquor is beaten to foam due to the high mechanical action of the drum. As a result, the volume of the wash liquor can increase so much that the entire space between the drum and the tub is filled.
- the foam is then introduced through a front gap between the drum and the tub in the Interior of the drum crowded. There, the foam is subjected to the centrifugal force of the drum, pressed through the laundry and transported back into the space between the drum and the tub. This forms a cycle of the laundry enforcing foam.
- the complete filling of the tub with foam can be determined by suitable sensors.
- a sensor for determining the amount of a liquid in the tub or a foam whose sensor signal is tracked during the process a conventional sensor can be used for the determination of the water level.
- Such a sensor generally measures a hydrostatic pressure p and / or the temporal gradient (ApZAt) 1 of the hydrostatic pressure p.
- Completely filled with foam generally shows a sudden increase in pressure on the sensor. This circumstance can be taken as a reason for the introduction of step c).
- the method according to the invention additionally and following step c) comprises a step d) upon reaching a predetermined wash temperature T w reversing operation of the drum at a speed U 2 , which is smaller than the application speed U A.
- the speed U 2 can vary within wide ranges. Preferably, a speed U 2 in the range of 30 to 80, in particular 40 to 60, for example 50 revolutions per minute is used.
- a speed U 2 in the range of 30 to 80, in particular 40 to 60, for example 50 revolutions per minute is used.
- the method according to the invention preferably comprises, in addition to step d) and subsequent to this, a step e) filling the tub with water in an amount sufficient to provide, in addition to the saturation amount (a3), an amount (a4) of free liquor sufficient that a space between the tub and the drum at a lower end of the drum is filled with water and can wet the laundry.
- the then total present Amount of water can correspond to the amount of water of a conventional washing program.
- the method comprises a step f) reversing operation of the drum at a speed U 2 which is less than the application speed U A.
- the laundry Due to the mechanical action due to the reversing operation of the drum, the laundry is flooded with the wash liquor. The dissolved dirt can be rinsed out and transferred to the wash liquor.
- step c) upon reaching a predetermined temperature T z , which is less than the wash temperature T w (for example, 30 or 40 0 C), the heating is interrupted and the drum at a speed U 2 , which is smaller than the application speed U A , reversing operated.
- T z a predetermined temperature
- T w wash temperature
- step d) in which step d) is carried out, in step d) at least once as an interruption of step d) is a step g) rotating the drum at a speed U 1 which is greater than an application speed U A the laundry is done.
- the drum is preferably rotated during a period of 60 seconds to 3.5 minutes, in particular 90 to 150 seconds, for example 120 seconds, with a rotational speed Ui which is greater than an application speed U A of the laundry.
- the speed Ui may be, for example, 250 to 600 revolutions per minute, in particular 300 to 500 revolutions per minute.
- step f the washing process is generally completed.
- the laundry can then be rinsed and spun as in a conventional washing program.
- the invention also relates to a washing machine with a program control for controlling the program flow, a rotatably mounted in a tub drum, one at the bottom of the tub arranged Laugenablaufsystem with a drain pump, a drive motor for the drum, a heater, a sensor for determining a quantity of in the tub liquid or a foam, and switching means for rotating and stopping the drum, wherein the switching means and the sensor are adapted to carry out the method according to the invention described above.
- the invention has numerous advantages. When carrying out the process according to the invention, a significantly smaller amount of water is heated compared to conventional processes. As a result, a significant saving of energy is possible.
- FIG. 1 is a schematic representation of the parts of a washing machine relevant to the following explanation, in which a method as described herein can be performed. Other embodiments are conceivable.
- the washing machine of the embodiment shown in Figure 1 comprises a tub 1, in which a drum 2 is rotatably mounted and can be operated by a drive motor 14.
- step a) of the process fills in particular a space between the drum 2 and the tub 1.
- step e) water is introduced in an amount sufficient that a space between the tub 1 and the drum 2 at a lower end of the drum is filled with water and can wet the laundry.
- water in the tub 1 extends at least to the lowest point of the drum 2 and the laundry therein.
- the washing machine also has a liquor inlet system comprising a water connection fitting for the domestic water network 8, an electrically controllable valve 9 and a supply line 10 to the tub 1, which may optionally also be guided via a Waschstoffein Whynd ("Ein Hamptonschale”) 1 1, from which the The valve 9 as well as the heating device 13 can be controlled by a control device (“program control”) 12 in response to a program flowchart which corresponds to a time program and / or or may be bound to the achievement of certain measurements of parameters such as liquor level, liquor temperature, drum 2 speed, etc. within the washing machine.
- 15 means a sensor for measuring the hydrostatic pressure p in the tub 1.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Control Of Washing Machine And Dryer (AREA)
- Detail Structures Of Washing Machines And Dryers (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL08774740T PL2183422T3 (en) | 2007-07-18 | 2008-07-03 | Method for the treatment of washing and programme-controlled washing machine suitable therefor |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007033493A DE102007033493A1 (en) | 2007-07-18 | 2007-07-18 | Process for the treatment of laundry as well as suitable program-controlled washing machine |
PCT/EP2008/058628 WO2009010404A1 (en) | 2007-07-18 | 2008-07-03 | Method for the treatment of washing and programme-controlled washing machine suitable therefor |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2183422A1 true EP2183422A1 (en) | 2010-05-12 |
EP2183422B1 EP2183422B1 (en) | 2012-09-12 |
Family
ID=40029008
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP08774740A Active EP2183422B1 (en) | 2007-07-18 | 2008-07-03 | Method for the treatment of washing and programme-controlled washing machine suitable therefor |
Country Status (7)
Country | Link |
---|---|
US (1) | US9080273B2 (en) |
EP (1) | EP2183422B1 (en) |
CN (1) | CN101755085B (en) |
DE (1) | DE102007033493A1 (en) |
EA (1) | EA015830B1 (en) |
PL (1) | PL2183422T3 (en) |
WO (1) | WO2009010404A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3252200A1 (en) * | 2016-05-30 | 2017-12-06 | LG Electronics Inc. -1- | Control method of washing machine |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102013225113B4 (en) | 2013-12-06 | 2019-01-31 | BSH Hausgeräte GmbH | Process for the treatment of laundry with improved wetting phase and suitable washing machine for this purpose |
DE102014108591B4 (en) * | 2014-06-18 | 2016-10-20 | Miele & Cie. Kg | Method for damp washing |
WO2017005390A1 (en) * | 2015-07-08 | 2017-01-12 | BSH Hausgeräte GmbH | Laundry care apparatus and laundry care method |
US20170096769A1 (en) | 2015-10-02 | 2017-04-06 | Lg Electronics Inc. | Method for controlling washing machine |
AU2016234984B2 (en) * | 2015-10-02 | 2018-11-08 | Lg Electronics Inc. | Washing machine |
AU2016234990B2 (en) | 2015-10-02 | 2018-12-06 | Lg Electronics Inc. | Washing machine and method for controlling the same |
DE102019119096A1 (en) * | 2019-07-15 | 2021-01-21 | Miele & Cie. Kg | Method for operating a washing machine with flooding device and washing machine |
US11028527B2 (en) | 2019-09-27 | 2021-06-08 | Whirlpool Corporation | Laundry treating appliance for drying laundry |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2221448A1 (en) * | 1971-04-29 | 1972-11-09 | Pegg S & Son Ltd | Process for cleaning textile materials |
DE3703917A1 (en) * | 1987-02-09 | 1988-08-18 | Bosch Siemens Hausgeraete | METHOD FOR AUTOMATIC WASHING OF LAUNDRY |
US4987627A (en) * | 1990-01-05 | 1991-01-29 | Whirlpool Corporation | High performance washing process for vertical axis automatic washer |
US5167722A (en) * | 1990-01-05 | 1992-12-01 | Whirlpool Corporation | Spray rinse process for vertical axis automatic washer |
DE4104450A1 (en) * | 1991-02-14 | 1992-08-20 | Manfred Stoll | Washing textiles in automatic washing machine - by using twin drum principle and recycling container to store solns. |
US5345637A (en) * | 1993-04-27 | 1994-09-13 | Whirlpool Corporation | High performance washing system for a horizontal axis washer |
ES2146130B1 (en) * | 1995-12-27 | 2001-02-16 | Fagor S Coop | CLOTHING WASHING METHOD IN A DOMESTIC WASHER. |
JP2001087592A (en) * | 1999-09-20 | 2001-04-03 | Hitachi Ltd | Drum type washing machine |
KR100565251B1 (en) * | 2004-07-19 | 2006-03-30 | 엘지전자 주식회사 | Water saving washing method for drum type washing machine |
DE102004039662A1 (en) | 2004-08-16 | 2006-02-23 | BSH Bosch und Siemens Hausgeräte GmbH | Program-controlled washing machine |
JP3781047B2 (en) * | 2004-11-09 | 2006-05-31 | 松下電器産業株式会社 | Drum washing machine |
KR101095555B1 (en) * | 2005-05-04 | 2011-12-19 | 삼성전자주식회사 | Washing machine and method to remove suds thereof |
US7765628B2 (en) * | 2006-06-09 | 2010-08-03 | Whirlpool Corporation | Steam washing machine operation method having a dual speed spin pre-wash |
-
2007
- 2007-07-18 DE DE102007033493A patent/DE102007033493A1/en not_active Withdrawn
-
2008
- 2008-07-03 EP EP08774740A patent/EP2183422B1/en active Active
- 2008-07-03 WO PCT/EP2008/058628 patent/WO2009010404A1/en active Application Filing
- 2008-07-03 EA EA201070154A patent/EA015830B1/en not_active IP Right Cessation
- 2008-07-03 PL PL08774740T patent/PL2183422T3/en unknown
- 2008-07-03 US US12/669,197 patent/US9080273B2/en not_active Expired - Fee Related
- 2008-07-03 CN CN2008800250508A patent/CN101755085B/en active Active
Non-Patent Citations (1)
Title |
---|
See references of WO2009010404A1 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3252200A1 (en) * | 2016-05-30 | 2017-12-06 | LG Electronics Inc. -1- | Control method of washing machine |
US10570546B2 (en) | 2016-05-30 | 2020-02-25 | Lg Electronics Inc. | Control method of washing machine |
Also Published As
Publication number | Publication date |
---|---|
EA201070154A1 (en) | 2010-06-30 |
CN101755085B (en) | 2012-02-22 |
US9080273B2 (en) | 2015-07-14 |
DE102007033493A1 (en) | 2009-01-22 |
EP2183422B1 (en) | 2012-09-12 |
PL2183422T3 (en) | 2013-02-28 |
EA015830B1 (en) | 2011-12-30 |
WO2009010404A1 (en) | 2009-01-22 |
CN101755085A (en) | 2010-06-23 |
US20100306925A1 (en) | 2010-12-09 |
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