EP2314753A1 - Procédé pour effectuer un cycle de rinçage durant un processus de nettoyage dans une machine à laver - Google Patents

Procédé pour effectuer un cycle de rinçage durant un processus de nettoyage dans une machine à laver Download PDF

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Publication number
EP2314753A1
EP2314753A1 EP09013194A EP09013194A EP2314753A1 EP 2314753 A1 EP2314753 A1 EP 2314753A1 EP 09013194 A EP09013194 A EP 09013194A EP 09013194 A EP09013194 A EP 09013194A EP 2314753 A1 EP2314753 A1 EP 2314753A1
Authority
EP
European Patent Office
Prior art keywords
washing
water
laundry
rinse cycle
tub
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Withdrawn
Application number
EP09013194A
Other languages
German (de)
English (en)
Inventor
Andrea Zattin
Biagio Salvati
Giuseppe Frucco
Monica Celotto
Gianantonio De Bin
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.)
Electrolux Home Products Corp NV
Original Assignee
Electrolux Home Products Corp NV
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 Electrolux Home Products Corp NV filed Critical Electrolux Home Products Corp NV
Priority to EP09013194A priority Critical patent/EP2314753A1/fr
Priority to CN2010106094485A priority patent/CN102041654A/zh
Publication of EP2314753A1 publication Critical patent/EP2314753A1/fr
Withdrawn legal-status Critical Current

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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
    • 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
    • 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 
    • D06F39/08—Liquid supply or discharge arrangements
    • D06F39/083—Liquid discharge or recirculation arrangements

Definitions

  • the present invention relates to a method for performing a rinse cycle during a washing process in a washing machine according to the preamble of claim 1. Further, the present invention relates to a washing machine according to the preamble of claim 12.
  • the hygiene is obtained by a relative high temperature, detergent and/or additives, e.g. bleaching agents. Changes in the behaviour of the user and in the washing processes require alternative hygiene solutions. In particular, the washing at a low temperature and/or the use of detergents free of bleaching require special methods for obtaining sufficient hygienic results.
  • detergent and/or additives e.g. bleaching agents.
  • Changes in the behaviour of the user and in the washing processes require alternative hygiene solutions.
  • the washing at a low temperature and/or the use of detergents free of bleaching require special methods for obtaining sufficient hygienic results.
  • UV light is an effective non-chemical treatment to disinfect water, air and surfaces. It is widely used in commercial and industrial applications.
  • DE 43 42 049 A1 discloses a washing machine with an UV light source.
  • the UV light source is arranged within the recirculation circuit. Thus, only the water within the recirculation circuit is irradiated by UV light. The laundry itself is not directly exposed to the UV light.
  • the object of the present invention is achieved by the method according to claim 1.
  • the water is irradiated with ultraviolet light within the re-circulating circuit and outside the washing tub.
  • the moving of the laundry is interruptible and/or disengageable during the rinse cycle by the user and/or by a washing programme.
  • An additional idea of the method according to the present invention is the possibility that the movement of the laundry within the washing tub can be interrupted or switched off, wherein the rinse water in the recirculation circuit is treated by UV light.
  • the present invention allows further operation modes.
  • the laundry can stay soaked within a washing drum, since the rinse water is disinfected by the UV light in the recirculation circuit at the same time.
  • the washing process can be interrupted for a relative long time.
  • the rinse cycle is a part of an interruptible washing programme, wherein the movement of the laundry within the washing tub is deactivated and the laundry stays soaked in the water.
  • the washing process can be interrupted without or with reduced reproduction of bacteria.
  • the rinse cycle may be a part of a night washing programme, wherein the movement of the laundry within the washing tub is deactivated, the laundry stays soaked in the water and a spinning phase deactivated.
  • the washing process can be interrupted over night, so that the loud high speed spinning phase can be avoided.
  • the laundry is moved by a rotatable washing drum arranged within the washing tub.
  • the recirculation circuit is driven by at least one recirculation pump.
  • the ultraviolet light is generated by at least one electric ultraviolet light source.
  • the ultraviolet light source and the recirculation pump are activated and/or deactivated synchronously. This is an efficient way to save energy.
  • the ultraviolet light source and the recirculation pump are activated and/or deactivated periodically.
  • a fabric conditioner is dosed at a predetermined time period after the rinse water has been loaded into the tub and before the drain pump is activated to drain the rinse water from the tub so that a least part of the rinse cycle is performed before the fabric conditioner is added. This improves the efficiency of the UV light source, since the fabric conditioner reduces the transparency of the water.
  • the fabric conditioner is added during the last rinse.
  • the fabric conditioner is dosed between five and fifteen minutes, preferably eight minutes, before the activation of the drain pump. This is the time for flushing a softener from the detergent drawer and mixing in an effective way said softener with the laundry.
  • the present invention relates to a washing machine with a recirculation circuit for rinse water and an ultraviolet light source within the recirculating circuit and outside the washing tub, wherein said washing machine is provided for a method as described above.
  • FIG 1 illustrates a schematic diagram of three examples of a rinse cycle according to a preferred embodiment of the present invention.
  • the rinse cycle is a part of a washing process in a washing machine.
  • the washing process includes an optional pre-washing cycle, a washing cycle and one or more rinse cycles.
  • the rinse cycle includes a first phase 10, wherein water is loaded into a washing tub. During a second phase 12 the water is re-circulated into the tub via a recirculation circuit. In a third phase 14 the water is drained off from the washing tub by activating a drain pump. A forth phase is a spinning phase wherein the drain pump remains activated.
  • the recirculation circuit fluidly connect two different portions of the tub to improve the mixing of the water and laundry.
  • the washing machine comprises a recirculation circuit with an UV light source.
  • the UV light source is arranged out of the washing tub.
  • the recirculation pump and the UV light source are always activated and deactivated synchronously.
  • the recirculation pump and the UV light source may be activated and deactivated at different times.
  • the recirculation pump and the UV light source are activated during the whole second phase 12.
  • the recirculation pump and the UV light source are activated during a central third of the second phase 12.
  • the recirculation pump and the UV light source are activated and deactivated four times in each case during the second phase 12.
  • the activated and deactivated periods have the same lengths.
  • At least one of the rinse steps of the washing programme is performed according to FIG. 1 .
  • the irradiation of the water with UV light allows a reduction of bacteria and microorganisms from washed laundry through the disinfection of the water passing in the recirculation circuit by the means of a treatment unit provided with a germicidal UV source.
  • the inventive method is suitable for low temperature cycles and cold temperature cycles.
  • the corresponding temperatures do not allow a disinfection of the rinse water, but the UV light disinfects the water.
  • the washing tub is always filled with water.
  • the laundry is either moved within the washing tub or stays soaked in the water.
  • the motion of the laundry is performed by a washing drum arranged within the washing tub.
  • the motion of the laundry can be activated and deactivated by a washing programme or manually by the user.
  • FIG 2 illustrates a schematic diagram of a last rinse cycle according to the preferred embodiment of the present invention.
  • a fabric conditioner is dosed.
  • the first phase 10 of the last rinse cycle runs without dosing fabric conditioner.
  • an electric valve for water loading is activated.
  • An electric valve for conditioner loading, the recirculating pump and the UV light source are deactivated during the first phase 10.
  • the recirculating pump and the UV light source are activated so that at least a part of the second phase 12 is performed before the fabric conditioner is added to the water.
  • the laundry is moved.
  • the electric valve for conditioner loading is activated, so that the conditioner is dosed some minutes before the activation of the drain pump, i.e. some minutes before commencing of draining phase 14.
  • the valve for conditioner loading is activated about 5-15 minutes before activation of the drain pump.
  • the valve for conditioner loading is activated about eight minutes before activation of the drain pump. This is the time required to flush the conditioner (for example softener) from the detergent drawer, for the softener to reach and effectively mix with laundry and take effect. This improves the efficiency of the UV light source, since the conditioner contributes to reduce water transparency and thus the penetration of the germicidal UV radiation.
  • the UV light source can either be activated or deactivated after the conditioner dosage.
  • the UV light source is activated at this stage.
  • the part of the second phase 12 performed without conditioner i.e. before adding the conditioner to the water, is prolonged to a minimum of 20 minutes. Also longer durations can be used as well, resulting in an improved bacteria reduction. For example, 20 minutes are intended as the time before supplying the conditioner, i.e. 20 minutes only with water and without any conditioner in order to eliminate bacteria and microorganisms contained in the laundry.
  • the washing drum should contain the half load.
  • the level of water in the washing drum is high during the washing and/or rinsing cycle, when the UV light source is activated. It is to be intended in the sense that the amount of water is greater than the normal amount in the washing tub for the specific cycle selected by the user.
  • Each cycle has its specific amount of rinse water, which depends on the types of textile and the amount.
  • the amount of rinse water for sanitization purpose is from 5% to 15% greater than the amount normally used for same cycle without anti-bacterial UV light treatment.
  • An intermediate spinning phase of low intensity may be performed.
  • the spinning phase is omitted.
  • the bacteria behave as solid particles, so that a high centrifugal force sticks the bacteria to the laundry, if the spinning phase of high intensity is performed.
  • the electric valve for water loading, the electric valve for conditioner loading, the recirculating pump and the UV light source are deactivated.
  • the rinse cycle described above can be applied at temperatures equal as or lower than 40 °C. This temperature is used for cotton, delicates, synthetics, wool and for special cycles such as baby, technical and in particular Sensitive and Sensitive Plus cycles.
  • rinse cycle described above can be applied for new cold cycles at a temperature of about 20 °C, preferably in combination with new generation of special detergents.
  • a rinse hold cycle or night cycle can be selected by the consumer.
  • said night cycle the movement of the laundry in interrupted in the second phase 12, so that the laundry remains in the water until next morning.
  • the high speed spinning phase can be skipped for noise reasons.
  • the laundry can stay soaked, since the water is recirculated and treated by UV light.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
  • Control Of Washing Machine And Dryer (AREA)
EP09013194A 2009-10-20 2009-10-20 Procédé pour effectuer un cycle de rinçage durant un processus de nettoyage dans une machine à laver Withdrawn EP2314753A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP09013194A EP2314753A1 (fr) 2009-10-20 2009-10-20 Procédé pour effectuer un cycle de rinçage durant un processus de nettoyage dans une machine à laver
CN2010106094485A CN102041654A (zh) 2009-10-20 2010-10-20 用于在洗衣机的洗涤过程期间执行漂洗周期的方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP09013194A EP2314753A1 (fr) 2009-10-20 2009-10-20 Procédé pour effectuer un cycle de rinçage durant un processus de nettoyage dans une machine à laver

Publications (1)

Publication Number Publication Date
EP2314753A1 true EP2314753A1 (fr) 2011-04-27

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EP09013194A Withdrawn EP2314753A1 (fr) 2009-10-20 2009-10-20 Procédé pour effectuer un cycle de rinçage durant un processus de nettoyage dans une machine à laver

Country Status (2)

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EP (1) EP2314753A1 (fr)
CN (1) CN102041654A (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2535454A1 (fr) * 2011-06-14 2012-12-19 Electrolux Home Products Corporation N.V. Machine à laver
DE102011083578A1 (de) * 2011-09-28 2013-03-28 BSH Bosch und Siemens Hausgeräte GmbH Verfahren zur Weichspülung von Wäsche in einer Waschmaschine sowie hierzu geeignete Waschmaschine
EP2792782A1 (fr) * 2013-04-19 2014-10-22 Miele & Cie. KG Procédé de fonctionnement d'un lave-linge avec dispositif de recirculation et lave-linge
DE102013224524A1 (de) 2013-11-29 2015-06-03 BSH Hausgeräte GmbH Wasserführendes Haushaltsgerät mit einer Aufbereitung von gespeichertem Grauwasser
DE102013224523B3 (de) * 2013-11-29 2015-06-03 BSH Hausgeräte GmbH Wasserführendes Haushaltsgerät mit einer Aufbereitung von gespeichertem Grauwasser
DE102013224521A1 (de) 2013-11-29 2015-06-03 BSH Hausgeräte GmbH Wasserführendes Haushaltsgerät mit einer Aufbereitung von gespeichertem Grauwasser
DE102013224520A1 (de) 2013-11-29 2015-06-03 BSH Hausgeräte GmbH Wasserführendes Haushaltsgerät mit einem Speicherbehälter zur Speicherung von Grauwasser
WO2019120343A1 (fr) 2017-12-20 2019-06-27 Gravity Holding Ltd. Appareil de désinfection par les uv, procédé et utilisation de celui-ci

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1202254A (en) * 1966-11-15 1970-08-12 Apothekernes Lab Process for removing proteins and decomposition products from waste water
DE4342049A1 (de) 1993-12-09 1995-06-14 Bauknecht Hausgeraete Waschmaschine mit einer UV-Strahlenquelle
EP1688529A1 (fr) * 2005-01-28 2006-08-09 Electrolux Home Products Corporation N.V. Machine à laver avec distributeur de détergent
DE202005013207U1 (de) * 2005-08-18 2006-09-28 Schäfer, Silke Entkeimung von Waschmaschinen und Innenraumtrocknung von Waschmaschinen zur Keimminimierung

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1116668A (zh) * 1994-05-10 1996-02-14 Lg电子株式会社 洗衣机
DE19980578C2 (de) * 1998-03-05 2002-11-28 Samsung Electronics Co Ltd Waschmaschine mit einer Vorrichtung zum Filtern von Schmutz im Waschwasser
JP2005253624A (ja) * 2004-03-10 2005-09-22 Sanyo Electric Co Ltd 洗濯機
CN1683635A (zh) * 2004-04-12 2005-10-19 乐金电子(天津)电器有限公司 洗衣机的洗涤方法
CN201012982Y (zh) * 2007-03-13 2008-01-30 合肥荣事达洗衣设备制造有限公司 波轮式洗衣机隐形紫外杀菌装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1202254A (en) * 1966-11-15 1970-08-12 Apothekernes Lab Process for removing proteins and decomposition products from waste water
DE4342049A1 (de) 1993-12-09 1995-06-14 Bauknecht Hausgeraete Waschmaschine mit einer UV-Strahlenquelle
EP1688529A1 (fr) * 2005-01-28 2006-08-09 Electrolux Home Products Corporation N.V. Machine à laver avec distributeur de détergent
DE202005013207U1 (de) * 2005-08-18 2006-09-28 Schäfer, Silke Entkeimung von Waschmaschinen und Innenraumtrocknung von Waschmaschinen zur Keimminimierung

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2535454A1 (fr) * 2011-06-14 2012-12-19 Electrolux Home Products Corporation N.V. Machine à laver
DE102011083578A1 (de) * 2011-09-28 2013-03-28 BSH Bosch und Siemens Hausgeräte GmbH Verfahren zur Weichspülung von Wäsche in einer Waschmaschine sowie hierzu geeignete Waschmaschine
WO2013045283A1 (fr) 2011-09-28 2013-04-04 BSH Bosch und Siemens Hausgeräte GmbH Procédé d'assouplissement de linge dans une machine à laver ainsi que machine à laver y étant appropriée
DE102011083578B4 (de) * 2011-09-28 2019-10-24 BSH Hausgeräte GmbH Verfahren zur Weichspülung von Wäsche in einer Waschmaschine sowie hierzu geeignete Waschmaschine
RU2596938C2 (ru) * 2011-09-28 2016-09-10 Бсх Хаусгерете Гмбх Способ полоскания белья с кондиционирующим средством в стиральной машине и стиральная машина для осуществления способа
EP2792782A1 (fr) * 2013-04-19 2014-10-22 Miele & Cie. KG Procédé de fonctionnement d'un lave-linge avec dispositif de recirculation et lave-linge
DE102013224521A1 (de) 2013-11-29 2015-06-03 BSH Hausgeräte GmbH Wasserführendes Haushaltsgerät mit einer Aufbereitung von gespeichertem Grauwasser
EP2878726A1 (fr) 2013-11-29 2015-06-03 BSH Hausgeräte GmbH Appareil ménager aquifère doté d'un conditionnement d'eau grise accumulée
DE102013224520A1 (de) 2013-11-29 2015-06-03 BSH Hausgeräte GmbH Wasserführendes Haushaltsgerät mit einem Speicherbehälter zur Speicherung von Grauwasser
WO2015078653A1 (fr) 2013-11-29 2015-06-04 BSH Hausgeräte GmbH Appareil ménager à circulation d'eau pourvu d'un réservoir destiné au stockage d'eaux grises
DE102013224521B4 (de) * 2013-11-29 2016-06-09 BSH Hausgeräte GmbH Wasserführendes Haushaltsgerät mit einer Aufbereitung von gespeichertem Grauwasser
DE102013224523B3 (de) * 2013-11-29 2015-06-03 BSH Hausgeräte GmbH Wasserführendes Haushaltsgerät mit einer Aufbereitung von gespeichertem Grauwasser
DE102013224524A1 (de) 2013-11-29 2015-06-03 BSH Hausgeräte GmbH Wasserführendes Haushaltsgerät mit einer Aufbereitung von gespeichertem Grauwasser
DE102013224520B4 (de) 2013-11-29 2020-06-25 BSH Hausgeräte GmbH Wasserführendes Haushaltsgerät mit einem Speicherbehälter zur Speicherung von Grauwasser
WO2019120343A1 (fr) 2017-12-20 2019-06-27 Gravity Holding Ltd. Appareil de désinfection par les uv, procédé et utilisation de celui-ci

Also Published As

Publication number Publication date
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