EP2158350B1 - Procede de traitement de linge et lave-linge approprie - Google Patents

Procede de traitement de linge et lave-linge approprie Download PDF

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Publication number
EP2158350B1
EP2158350B1 EP08760070.6A EP08760070A EP2158350B1 EP 2158350 B1 EP2158350 B1 EP 2158350B1 EP 08760070 A EP08760070 A EP 08760070A EP 2158350 B1 EP2158350 B1 EP 2158350B1
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EP
European Patent Office
Prior art keywords
laundry
lye
washing
amount
washing machine
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.)
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Application number
EP08760070.6A
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German (de)
English (en)
Other versions
EP2158350A2 (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
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BSH Hausgeraete GmbH
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Publication date
Application filed by BSH Hausgeraete GmbH filed Critical BSH 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
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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.
  • a method with the features of the preamble of claim 1 is made WO 2006/101362 A known.
  • 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.
  • 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 U 1 which is 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").
  • 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 reversely operated for a period of 10 to 30 minutes at a speed of 30 to 100 revolutions per minute, more preferably 40 to 70 revolutions per minute.
  • a good redistribution of the items of laundry is achieved, so that the heating of the wetted items of laundry, which generally takes place on their surface, can take place as evenly as possible due to the improved accessibility of the surface.
  • 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 filled amount of water or wash liquor.
  • 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.
  • 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 flow, 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.
  • FIG. 1 Fig. 3 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 performed. Other embodiments are conceivable.
  • the washing machine of the FIG. 1 embodiment shown has a tub 1, in which a drum 2 rotatably mounted and operated by a drive motor 14.
  • the axis of rotation 3 of the drum 2 is directed from the horizontal by a small angle (for example, 13 °) forward and upwards, so that one has 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 heater 16 outside of tub 1 and drum 2.
  • the in FIG. 1 shown heater 16 may provide hot air or steam in particular.
  • 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 optionally also be guided via a Waschstoffein Kunststoff Anlagen Maschinene ("Ein Hamptonschale”) 11 from which can transport the feed water there presented detergent in the tub 1.
  • the valve 9 as well as the heater 13 may be controlled by a controller (“program control”) 12 in response to a program flowchart that is responsive to a timing 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.
  • 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 ° C, possibly even at most 30 ° C.
  • the required heating energy is therefore very low, since heating energy must be expended primarily 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)

Claims (12)

  1. Procédé de traitement de pièces de linge (7) à l'aide d'un liquide de lavage aqueux dans un lave-linge comprenant un système d'évacuation de liquide de lavage (18) disposé au fond d'une cuve à liquide de lavage (1), un tambour (2) logé de manière rotative et un dispositif de chauffage (13, 16) pour l'échauffement direct d'une quantité de chargement (a1) de pièces de linge (7), contenant le liquide de lavage, le procédé comprenant les étapes
    a) apport du liquide de lavage à la quantité de chargement (a1) et mouillage des pièces de linge (7) ;
    b) échauffement direct, par le dispositif de chauffage (13, 16), des pièces de linge (7) mouillées ; et
    c) apport d'eau à une température Tw de maximum 40° C pour rincer le liquide de lavage hors des pièces de linge (7),
    caractérisé en ce qu'
    à l'étape a), du liquide de lavage est ajouté dans une quantité (a2) inférieure ou égale à une quantité (a3) qui est nécessaire pour saturer les pièces de linge (7) avec l'eau, c'est-à-dire une quantité de saturation, et
    en ce qu'à l'étape b), l'échauffement direct des pièces de linge (7) contenant le liquide de lavage est réalisé avec de la mousse chaude, de l'air chaud et/ou un rayonnement électromagnétique, laquelle a été obtenue/lesquels ont été obtenus en utilisant le dispositif de chauffage (13, 16), et sans transmission par un reste non lié de liquide de lavage.
  2. Procédé selon la revendication 1, caractérisé en ce que l'étape c) est réalisée seulement après l'achèvement de l'étape b).
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce que la température Tw de l'eau à l'étape c) est de maximum 30° C.
  4. Procédé selon l'une quelconque des revendications 1 à 3, caractérisé en ce que les pièces de linge (7) mouillées sont échauffées avec de la mousse chaude, en ce que suite à l'étape a), la mousse chaude est générée par rotation du tambour à une vitesse de rotation U1 qui est inférieure à une vitesse d'application UA du linge, en ce que le dispositif de chauffage (13, 16) est mis en marche et en ce que la mousse est échauffée.
  5. Procédé selon l'une quelconque des revendications 1 à 4, caractérisé en ce que l'échauffement à l'étape b) au moyen de rayonnement électromagnétique est causé en raison de l'utilisation d'un chauffage à microondes (16) ou d'un radiateur IR (16).
  6. Procédé selon l'une quelconque des revendications 1 à 5, caractérisé en ce que le tambour (2), à l'étape b), fonctionne de manière réversible pendant une période de temps de 10 à 30 minutes à une vitesse de rotation de 30 à 100 tours par minutes.
  7. Procédé selon l'une quelconque des revendications 1 à 6, caractérisé en ce qu'un rapport de la quantité (a2) et de la quantité (a3) est situé entre 0,5 et 0,9.
  8. Lave-linge comprenant une commande à programme (12) pour la commande du déroulement de programmes, un tambour (2) logé de manière rotative dans une cuve à liquide de lavage (1), un système d'évacuation de liquide de lavage (18) disposé au fond de la cuve à liquide de lavage (1) et un moteur d'entraînement (14) pour le tambour (2), le lave-linge présentant un dispositif de chauffage (13, 16) pour l'échauffement direct d'une quantité de chargement (a1) de pièces de linge (7), contenant le liquide de lavage, et étant configuré pour la réalisation d'un procédé qui comprend les étapes :
    a) apport du liquide de lavage à la quantité de chargement (a1) et mouillage des pièces de linge (7) ;
    b) échauffement direct, par le dispositif de chauffage (13, 16), des pièces de linge (7) mouillées ; et
    c) apport d'eau à une température Tw de maximum 40° C pour rincer le liquide de lavage hors des pièces de linge (7),
    caractérisé en ce que
    le lave-linge est configuré
    pour, à l'étape a), amener du liquide de lavage dans une quantité (a2) inférieure ou égale à une quantité (a3) qui est nécessaire pour saturer les pièces de linge (7) avec l'eau, c'est-à-dire une quantité de saturation, et
    à l'étape b), pour causer l'échauffement direct des pièces de linge (7) contenant le liquide de lavage avec de la mousse chaude, de l'air chaud et/ou un rayonnement électromagnétique, laquelle a été obtenue/lesquels ont été obtenus en utilisant le dispositif de chauffage (13, 16), et sans transmission par un reste non lié de liquide de lavage.
  9. Lave-linge selon la revendication 8, caractérisé en ce que le dispositif de chauffage (13, 16) est un dispositif (16) destiné à produire de l'air chaud.
  10. Lave-linge selon la revendication 8, caractérisé en ce que le dispositif de chauffage (13, 16) est un appareil à microondes (16) et/ou un radiateur IR (16).
  11. Lave-linge selon l'une quelconque des revendications 8 à 10, caractérisé en ce que le dispositif de chauffage (13, 16) est disposé dans la cuve à liquide de lavage (1).
  12. Lave-linge selon l'une quelconque des revendications 8 à 11, caractérisé en ce qu'un deuxième capteur (17) est disposé dans le tambour (2) pour déterminer une température.
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 EP2158350A2 (fr) 2010-03-03
EP2158350B1 true EP2158350B1 (fr) 2018-07-11

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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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EP4411051A1 (fr) 2023-02-06 2024-08-07 Zöllner GmbH Procédé de nettoyage du linge et système de lavage correspondant

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DE102013225113B4 (de) * 2013-12-06 2019-01-31 BSH Hausgeräte GmbH Verfahren zur Behandlung von Wäsche mit verbesserter Benetzungsphase und hierzu geeignete Waschmaschine
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4411051A1 (fr) 2023-02-06 2024-08-07 Zöllner GmbH Procédé de nettoyage du linge et système de lavage correspondant
DE102023102782A1 (de) 2023-02-06 2024-08-08 Zöllner GmbH Verfahren zur Reinigung von Wäsche und Waschsystem hierzu

Also Published As

Publication number Publication date
EA017035B1 (ru) 2012-09-28
PL2158350T3 (pl) 2019-02-28
DE102007028212A1 (de) 2008-12-24
DE102007028212B4 (de) 2022-03-24
EA201070016A1 (ru) 2010-06-30
EP2158350A2 (fr) 2010-03-03
ES2686139T3 (es) 2018-10-16
CN101711295B (zh) 2014-11-05
WO2008155196A2 (fr) 2008-12-24
US20100235999A1 (en) 2010-09-23
CN101711295A (zh) 2010-05-19
WO2008155196A3 (fr) 2009-02-19

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