EP2158350A2 - Procede de traitement de linge et lave-linge approprie - Google Patents

Procede de traitement de linge et lave-linge approprie

Info

Publication number
EP2158350A2
EP2158350A2 EP08760070A EP08760070A EP2158350A2 EP 2158350 A2 EP2158350 A2 EP 2158350A2 EP 08760070 A EP08760070 A EP 08760070A EP 08760070 A EP08760070 A EP 08760070A EP 2158350 A2 EP2158350 A2 EP 2158350A2
Authority
EP
European Patent Office
Prior art keywords
amount
laundry
washing machine
drum
laundry items
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
Application number
EP08760070A
Other languages
German (de)
English (en)
Other versions
EP2158350B1 (fr
Inventor
Harald MOSCHÜTZ
Ingo Schulze
Andreas Hanau
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BSH Hausgeraete GmbH
Original Assignee
BSH Bosch und Siemens Hausgeraete GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by BSH Bosch und Siemens Hausgeraete GmbH filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Priority to PL08760070T priority Critical patent/PL2158350T3/pl
Publication of EP2158350A2 publication Critical patent/EP2158350A2/fr
Application granted granted Critical
Publication of EP2158350B1 publication Critical patent/EP2158350B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/04—Heating arrangements
    • 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
    • D06F2103/02—Characteristics of laundry or load
    • D06F2103/04—Quantity, e.g. weight or variation of weight
    • 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
    • D06F2105/56—Remaining operation time; Remaining operational cycles
    • 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
    • D06F33/00—Control of operations performed in washing machines or washer-dryers 
    • D06F33/30—Control of washing machines characterised by the purpose or target of the control 
    • D06F33/32—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry
    • D06F33/36—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry of washing
    • 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
    • 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
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/40—Steam generating arrangements

Definitions

  • the invention relates to a method for the treatment of laundry items in a washing machine and a particularly suitable for carrying out this method washing machine.
  • the laundry items to be washed are treated with an amount of water sufficient to saturate the laundry items with water and an additional minimum free liquor, generally 2 to 3 liters, which allows mass transfer between bound and free liquors. This can be done in particular a transfer of heat between the heating, which heats the free fleet, and the laundry items.
  • the adjustment of the amount of water is ensured in each case by suitable methods for controlling the water level in the drum and the adjustment of the amount of the absorbency of the laundry items.
  • the free liquor results after deduction of the amount of water bound in the laundry from the amount of water filled 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 l of water.
  • both the washing-active substances for washing and the dissolved dirt are removed from the laundry during heating by the constant change from bound to free liquor and vice versa. Since many soiling on or in items of laundry are only solvable at a higher temperature, both free and bound liquor must be heated during the heating.
  • 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 a washing machine would therefore be desirable, in particular a reduction in the amount of free liquor.
  • a reduction in the amount of water in a washing machine would therefore be desirable, in particular a reduction in the amount of free liquor.
  • a conventional washing machine must be ensured by the free fleet of heat transfer from the heater into the laundry. Any reduction in the free fleet and thus a reduction in energy consumption are thus difficult to achieve.
  • An object of the invention is therefore to provide a method for treating laundry in a washing machine, in which energy and / or water can be saved over known methods.
  • the invention thus relates to a method for treating items of laundry with an aqueous wash liquor in a washing machine with a lye drainage system arranged at the bottom of a tub, a rotatably mounted drum and a heater for direct heating of a load containing the wash liquor, the method comprising steps a ) Adding the wash liquor to the load (a1) of an amount (a2) less than or equal to an amount (a3) required to saturate the wash with water
  • Wash liquor from the laundry includes.
  • step c) is performed only after completion of step b).
  • the temperature T w of the water in step c) is preferably at most 30 ° C.
  • the direct heating of the laundry containing the wash liquor is preferably carried out with hot foam, hot air, water vapor and / or electromagnetic radiation obtained using the heating device (s).
  • the heating device for direct heating of a load containing the wash liquor may be attached in different places in the washing machine according to the invention.
  • the heating device is arranged in the tub and in particular in the drum.
  • the hot foam is preferably produced by rotating the drum at a speed Ui less than an application speed U A of the laundry, turning on the heater, and heating the foam.
  • the application speed U A of the laundry is the rotational speed of the drum at which the items of laundry can be applied to an inner wall of the drum, for example a speed in the range of 300 to 500 revolutions per minute.
  • the temperature gradient is adjustable via the heater output and the foam density. Since primarily the surface of the laundry is heated, it is advantageous if the laundry is turned intensively. This can advantageously be done by reversing the operation of the drum at a speed of 30 to 100 revolutions per minute.
  • the heating in step b) by means of electromagnetic radiation is preferably effected by using a microwave heating and / or an infrared radiator ("IR radiator").
  • Microwave heating must be ensured that there are no short circuits due to metal parts that may be present in the laundry items.
  • certain synthetic fibers may not be stable when heated with microwaves.
  • seams made of polyester could cause damage to items of laundry.
  • direct heating of the laundry is also possible.
  • the temperature gradient is adjustable via the power of the IR emitter. Since in particular the surface of the textile pieces is heated, in this case an intensive redistribution of the laundry items by reversing operation of the drum is advantageous.
  • the heating of the wetted laundry with hot air has the advantage that a temperature gradient is adjustable, whereby heat losses can be reduced.
  • a heater known from a tumble dryer can be used to generate hot air.
  • the use of hot air is therefore particularly advantageous in a combination device that combines the function of a washing machine with that of a tumble dryer.
  • the drum in step b) is preferably for a period of 10 to 30 minutes at a speed of 30 to 100 revolutions per
  • Heating the wetted laundry, which generally takes place on the surface, due to the improved accessibility of the surface can be carried out as uniformly as possible.
  • step c) in step b) substantially only loosened dirt still remaining in the laundry items can be rinsed out.
  • step c With the end of step c), the actual washing process is generally completed.
  • the laundry items can then be rinsed and spun as in a conventional washing program.
  • the laundry items contain at most the amount of water required for the saturation of the laundry items with wash liquor.
  • the ratio of the amount (a2) to the amount (a3) is in the range of 0.5 to 0.9.
  • the ratio of the amount (a2) to the amount (a3) is preferably in the range of 0.5 to 0.7.
  • an amount of water (a2) of 10 liters for example, 8 liters using steam 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 quantity (a1) can be determined by a measure known per se.
  • a first sensor is used to determine the amount of liquid or foam in the tub, the sensor signal of which can be tracked during the process.
  • a hydrostatic pressure p measured with the aid of the first sensor can be compared with the amount of water or wash liquor charged.
  • the laundry located in the drum absorbs water or washing liquor, which can therefore not contribute to an increase in the hydrostatic pressure.
  • the amount of laundry (loading quantity (a1)) and its degree of moisture penetration (degree of wetting) can be determined.
  • the duration of wetting in step a) can be matched very precisely to the predetermined amount of laundry.
  • a program for the inventive method sufficient wetting of the laundry cost is signaled to a program, so that step a) is completed and step b) can be started.
  • the monitoring of a temperature in the drum is advantageous.
  • a second sensor for determining the temperature in the drum is preferably arranged in the washing machine.
  • the amount of water or wash liquor to be used in the process according to the invention can additionally be reduced by rotating the drum at high speed during steps a) and / or b). In this case, if necessary, the water / wash liquor contained in the laundry items is thrown off and a reduction in the amount of water or wash liquor required for saturation is achieved.
  • the invention also relates to a washing machine with a program control for controlling a program sequence, a rotatably mounted in a tub drum, a bottom of the tub arranged Laugenablaufsystem, and a drive motor for the drum, the washing machine additionally a heater for direct heating of a wash liquor containing loading amount (a1) with laundry.
  • the heating device is in a first preferred embodiment, a device for generating steam or hot air.
  • the heating device is a microwave heater and / or an IR radiator.
  • a first sensor for determining a quantity of a liquid present in the tub and possibly foam, wherein the sensor signal can be preferably tracked during the process.
  • a second sensor for determining a temperature in the drum is arranged.
  • the invention has the advantage that compared to conventional methods, a significantly lower amount of water or wash liquor is heated. This amount corresponds essentially to the amount necessary for saturating the laundry items, which can still be reduced by appropriate rapid rotation of the drum during heating. As a result, a significant saving of water and energy is possible.
  • An embodiment of the invention will be described in more detail below with reference to FIG 1.
  • Figure 1 is a schematic representation of the parts relevant to the following description of an embodiment of a washing machine in which a method as described above can be carried out. Other embodiments are conceivable.
  • the washing machine of the embodiment shown in Figure 1 comprises a tub 1, in which a drum 2 rotatably mounted and can be operated by a drive motor 14.
  • the axis of rotation 3 of the drum 2 is directed from the horizontal by a small angle (e.g., 13 °) forwardly upwards, so as to provide easier access and insight into the interior of the drum 2.
  • Wäschemit choir 4 allow redistribution of the laundry items 7 during rotation of the drum 2.
  • scooping devices 5 allow intensive rinsing of the cleaned laundry items 7 with water. 6
  • a heating device 16 is located outside of the tub 1 and the drum 2.
  • the heating device 16 shown in FIG. 1 can in particular provide hot air or water vapor.
  • a foam optionally used in step b) of the process described above and produced by rotating the drum 2 with the laundry items 7 can be heated via a heating device 13 arranged at the bottom of the liquor container 1.
  • the wash liquor is partially thrown off the laundry 7 and so intensively mixed with air, whereby foam is formed.
  • the rotating drum 2 in the wash liquor which is below the drum 2 in the tub 1, enter air and thus cause foam.
  • the formation of foam can be assisted by adding a corresponding detergent to the wash liquor.
  • the washing machine of Fig. 1 also has a liquor inlet system 8, 9, 10, which comprises 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 also have a liquor inlet system 8, 9, 10, which comprises 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 also have a liquor inlet system 8, 9, 10, which comprises 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 also have a
  • Inlet water can transport there presented detergent in the tub 1.
  • valve 9 as well as the heater 13 may be controlled by a controller ("program control") 12 in response to a program flowchart that corresponds to a timer program and / or to the achievement of certain measurements of Parameters such as speed of the drum 2 may be bound within the washing machine.
  • controller program control
  • a lye drain system 18 with any necessary lines and drain valve and drain pump is, as is known, the sake of clarity only shown schematically as an arrow.
  • a first sensor 15 for the measurement of the hydrostatic pressure p is provided in the tub 1.
  • a second sensor 17 for determining a temperature in the drum 2 is arranged.
  • the second sensor 17 may also be located in a space between the tub 1 and the drum 2.
  • step a) of the above-described method for treating the laundry water is introduced in an amount sufficient to fill a space between the tub 1 and the drum 2 at a lower end of the drum with water and can wet the laundry 7.
  • This wash liquor is gradually absorbed by the laundry items 7 until they are wetted to saturation. More wash or water does not have to be added.
  • the heating of the laundry items 7 with the washing liquor bound therein is carried out directly and without mediation by an unbound residue of washing liquor.
  • This contamination in the laundry items 7 are initially solved, but not completely washed out. This is done only in a subsequent step by additionally added, not or at least not very highly heated water, which no longer has to contribute to solving the contaminants, but only to their rinsing from the laundry 7.
  • a comparatively low temperature of at most 40 is sufficient 0 C, possibly even only at most 30 0 C.
  • the required heating energy is therefore very low, since heating energy must be spent in the first place only for the bound in the laundry items 7 liquor to be treated.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Control Of Washing Machine And Dryer (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
  • Accessory Of Washing/Drying Machine, Commercial Washing/Drying Machine, Other Washing/Drying Machine (AREA)
  • Treatment Of Fiber Materials (AREA)

Abstract

L'invention concerne un procédé de traitement de linge (7) avec une lessive dans une machine à laver pourvue d'un système d'écoulement de lessive (18) placé au fond d'une cuve (1), d'un tambour (2) monté tournant et d'un dispositif chauffant (13, 16) destiné à chauffer directement une charge (a1) de linge (7), à laquelle la lessive a été ajoutée, ledit procédé consistant a) à ajouter la lessive à la charge (a1) en quantité (a2) inférieure ou égale à une quantité (a3) nécessaire pour saturer le linge (7) d'eau ("quantité saturante"), et à mouiller le linge (7); b) à chauffer le linge mouillé (7) au moyen du dispositif chauffant (13, 16); et c) à ajouter de l'eau à une température Tw d'au maximum 40 °C pour rincer le linge (7). L'invention concerne également un lave-linge approprié pour la mise en oeuvre dudit procédé.
EP08760070.6A 2007-06-20 2008-05-27 Procede de traitement de linge et lave-linge approprie Active EP2158350B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL08760070T PL2158350T3 (pl) 2007-06-20 2008-05-27 Sposób obróbki prania oraz odpowiednia do tego pralka

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007028212.7A DE102007028212B4 (de) 2007-06-20 2007-06-20 Verfahren zur Behandlung von Wäschestücken sowie hierzu geeignete Waschmaschine
PCT/EP2008/056472 WO2008155196A2 (fr) 2007-06-20 2008-05-27 Procédé de traitement de linge et lave-linge approprié

Publications (2)

Publication Number Publication Date
EP2158350A2 true EP2158350A2 (fr) 2010-03-03
EP2158350B1 EP2158350B1 (fr) 2018-07-11

Family

ID=39967941

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08760070.6A Active EP2158350B1 (fr) 2007-06-20 2008-05-27 Procede de traitement de linge et lave-linge approprie

Country Status (8)

Country Link
US (1) US20100235999A1 (fr)
EP (1) EP2158350B1 (fr)
CN (1) CN101711295B (fr)
DE (1) DE102007028212B4 (fr)
EA (1) EA017035B1 (fr)
ES (1) ES2686139T3 (fr)
PL (1) PL2158350T3 (fr)
WO (1) WO2008155196A2 (fr)

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EP2540896B1 (fr) * 2011-06-30 2016-04-13 Electrolux Home Products Corporation N.V. Procédé de nettoyage du linge dans une machine à laver le linge
DE102013225113B4 (de) * 2013-12-06 2019-01-31 BSH Hausgeräte GmbH Verfahren zur Behandlung von Wäsche mit verbesserter Benetzungsphase und hierzu geeignete Waschmaschine
US10745842B2 (en) * 2014-03-24 2020-08-18 Haier Us Appliance Solutions, Inc. Washing machine appliances and methods for operating the same
KR20170049593A (ko) * 2014-09-10 2017-05-10 킹 데니스 존 세탁기
EP4155453A1 (fr) * 2016-08-25 2023-03-29 LG Electronics Inc. Appareil de traitement du linge équipé d'un dispositif de chauffage par induction
CN112064291B (zh) * 2019-05-23 2023-11-17 博西华电器（江苏）有限公司 洗衣机及其控制方法
CN112411124B (zh) * 2020-10-28 2021-11-05 珠海格力电器股份有限公司 一种衣物处理设备的漂洗控制方法及衣物处理设备
DE102023102782A1 (de) 2023-02-06 2024-08-08 Zöllner GmbH Verfahren zur Reinigung von Wäsche und Waschsystem hierzu

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Also Published As

Publication number Publication date
CN101711295A (zh) 2010-05-19
WO2008155196A3 (fr) 2009-02-19
US20100235999A1 (en) 2010-09-23
CN101711295B (zh) 2014-11-05
ES2686139T3 (es) 2018-10-16
EP2158350B1 (fr) 2018-07-11
DE102007028212B4 (de) 2022-03-24
DE102007028212A1 (de) 2008-12-24
PL2158350T3 (pl) 2019-02-28
EA201070016A1 (ru) 2010-06-30
WO2008155196A2 (fr) 2008-12-24
EA017035B1 (ru) 2012-09-28

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