WO2012152683A1 - Verfahren zum entkeimen von wäsche und waschtrockeneinheit - Google Patents
Verfahren zum entkeimen von wäsche und waschtrockeneinheit Download PDFInfo
- Publication number
- WO2012152683A1 WO2012152683A1 PCT/EP2012/058226 EP2012058226W WO2012152683A1 WO 2012152683 A1 WO2012152683 A1 WO 2012152683A1 EP 2012058226 W EP2012058226 W EP 2012058226W WO 2012152683 A1 WO2012152683 A1 WO 2012152683A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- temperature
- laundry
- washing
- laundry items
- items
- Prior art date
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
- D06F25/00—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry and having further drying means, e.g. using hot air
-
- 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
- D06F33/50—Control of washer-dryers characterised by the purpose or target of the control
- D06F33/52—Control of the operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry
- D06F33/65—Control of the operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry of conditioning or finishing phases, e.g. for smoothing or removing creases
-
- 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
- D06F34/26—Condition of the drying air, e.g. air humidity or temperature
-
- 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
- D06F58/00—Domestic laundry dryers
- D06F58/20—General details of domestic laundry dryers
- D06F58/203—Laundry conditioning 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
- D06F2101/00—User input for the control of domestic laundry washing machines, washer-dryers or laundry dryers
- D06F2101/14—Time settings
-
- 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
- D06F2101/00—User input for the control of domestic laundry washing machines, washer-dryers or laundry dryers
- D06F2101/18—Target temperature for the drying process, e.g. low-temperature 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
- D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
- D06F2103/28—Air properties
- D06F2103/32—Temperature
-
- 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
- D06F2103/38—Time, e.g. duration
-
- 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
- D06F2105/14—Temperature of laundry
Definitions
- the invention relates to a method for sterilizing laundry as well as a laundry drying unit.
- Sensitive laundry is known to be washed only at low temperature (eg, room temperature or 30 ° C to 40 ° C) because at higher wash temperatures, the fabric or dyeing of the laundry would suffer and be damaged, at least over many washes. This can lead to the decolorization of a textile or the transfer of color from one to another textile. Disadvantage of washing at low temperature, however, is that in the laundry contained germs are not killed by such washing to the extent as when washing at high temperature such. B. 95 ° C (so-called cooking linen). This disadvantage has been partially circumvented by the fact that the still wet laundry is exposed to the washing process by means of a tumble dryer hot air.
- DE 33 43 236 A1 discloses a drying cabinet into which the laundry still wet from a previous washing process is introduced, where it is first dried and then sterilized thereon. It is an object of the invention to provide a method by means of which delicate laundry can be better sterilized with the greatest possible protection of the material than with traditional washing / drying processes. It is a further object of the invention to provide a washing drying unit, by means of which the inventive method is feasible.
- the method according to the invention for sterilizing temperature-sensitive laundry items accordingly has the following features:
- the laundry items are exposed to a process air flow of defined temperature (Tp) in a dry state over a predetermined period of time (T) and heated,
- the method according to the invention has the advantage that the hot air supplied to the laundry in the first process step damages the delicate laundry far less than during a drying process subsequent to a washing process. Due to the absence of water and a removal of color from a textile treated according to the invention and thus both discoloration and transfer to another textile is excluded. Also, a shrinkage of the laundry is prevented by the action of water at elevated temperature. Yet another advantage lies in the fact that for sterilizing less energy for heating the (still) dry Laundry is required as with a corresponding heating conventional wet laundry.
- a preferred embodiment of the invention provides that the desired temperature (Tp so n) corresponds to a room temperature (Tp space ), ie the temperature of an environment of the device or device in which the method is performed. It is therefore in particular the temperature of about 20 ° C usually prevailing in an inhabited closed room.
- Tp space room temperature
- Tp space room temperature
- a second particularly preferred, further developed embodiment of the invention provides that the target temperature (Tp so n) is calculated using a previously determined loading amount of laundry items which are sterilized and a predetermined washing temperature of the subsequent washing program, so that after the addition of Water to the amount of laundry sets a temperature in the laundry, which is less than or equal to the washing temperature.
- the heat used for sterilization is advantageously utilized in the subsequent washing process.
- the laundry items are dried after washing in a conventional manner, which then also creates a connection to a conventional drying process.
- Another preferred embodiment of the invention provides that a period of between five and twenty-five minutes is selected as the predetermined period (T), in particular one between ten and twenty minutes, inclusive.
- a further preferred embodiment of the invention provides that a temperature with a value range between 60 ° C and 120 ° C is specified as the defined temperature (Tp), in particular one between 70 ° C and 90 ° C, inclusive.
- Tp defined temperature
- Yet another preferred embodiment of the invention provides that a temperature of the process air flow is measured immediately before the laundry is exposed to it, and a temperature of the process air flow is measured immediately after the laundry has been exposed to it and both measured temperatures to control the temperature the laundry items are used.
- the washer-dry unit according to the invention accordingly has a control device for carrying out the method according to the invention or one of its preferred developments.
- the washer-drying unit has a control device (CTRL) for carrying out a method for sterilizing temperature-sensitive laundry items in the washer-dryer unit.
- CTRL control device
- the control device (CTRL) has the following functions:
- a preferred embodiment of the invention provides that in the washer-drying unit, a timer unit is provided, by means of which the predetermined period (T) is predetermined by value.
- a temperature control unit is provided in the washer-drying unit, by means of which the desired temperature (Tp so n) can be predetermined in terms of value and, in particular, as described above, can be calculated.
- the temperature control unit has a first temperature sensor for measuring a temperature of the process airflow immediately after the laundry items have been exposed to it, and a second temperature sensor for measuring a temperature of the process airflow immediately before the laundry items are exposed to it, and is the temperature control unit arranged such that both measured temperatures are used to control the temperature of the laundry items.
- a further preferred embodiment of the invention provides that in the washer-dryer unit, the control device is designed so that it starts a previously selected wash program of the washer-dryer after completion of the cooling down.
- Fig. 1 temperature profiles when exercising the method
- FIG. 2 shows the washer-dryer unit in symbolic representation
- FIG. 3 shows a vertical section through the washer-dryer unit.
- the laundry to be washed ie the laundry items to be washed
- the heating takes place at a defined temperature Tp, which is either fixed by the heating device or can be preselected. It is advantageous if the defined temperature Tp is selected in a value range between 60 ° C and 120 ° C, in particular in a value range between 70 ° C and 90 ° C, each inclusive.
- the laundry After reaching the defined temperature Tp, the laundry is exposed to this temperature for a given period T, the given period T being between five and twenty five minutes, in particular between ten and twenty minutes, inclusive.
- the given period T is fixed either by the device causing the heating or it is preselected.
- the heating in the hot air flow causes the intended sterilization, namely an almost complete killing of the germs contained in the laundry such. As bacteria, viruses, mites etc.
- the laundry is cooled. After cooling, the laundry is washed in a further development of the invention in a conventional manner and also dried. The drying can be carried out, for example, in a dryer at low, the sensitivity of the laundry adapted temperature, since the sterilization of the laundry has already taken place.
- the laundry is characterized much more spared than when drying at a correspondingly high temperature in the context of a conventional washing-drying process, since the laundry is heated only in the dry state above the maximum temperature permissible for washing.
- Another advantage of this development is that the germs killed in the previous treatment of the laundry with process air flow are flushed out of the laundry items by the subsequent washing process and thus removed therefrom. Namely, in the methods of the conventional washing-drying process without the preliminary sterilization, the germs are not killed until the drying process following washing, leaving their remains in the dried laundry.
- the cooling down is carried out until the sterilized laundry, depending on the selected embodiment of the method according to the invention, room temperature Tp room or a target temperature Tp has so n, the value is approximately equal to a maximum washing temperature occurring in the subsequent washing process, or at the after the subsequent addition of water for washing in the laundry sets a temperature less than or equal to the washing temperature.
- Fig. 1 shows the two possible courses of the temperature Temp, shown over the time t.
- the temperature Temp rises from the room temperature Tp room to the defined temperature Tp. There, it remains over the predetermined time period T, in order then to drop to the setpoint temperature Tp so n.
- the temperature profile is initially the same as described above in one case. After the end of the predetermined period T, however, the temperature Temp then drops to the room temperature Tp space , which is shown partially in dashed lines.
- a combined washing-drying unit in which washing and drying are carried out in one and the same drum, so that no transfer of the laundry from a washing machine to a tumble dryer
- a control device CTRL which controls the usually existing components of a combined washer-dryer unit including pump (s) for water inlet and outlet, hot air device, motor (s) for moving the laundry drum and a program control unit so that in Operation overall, the inventive method is performed.
- a combined washer-dryer unit is shown symbolically in FIG. It is advantageous if the combined washer-dry unit has a timer unit Z, by means of which the defined period of time T can be predetermined in terms of value.
- the combined washer-dryer unit has a temperature control unit TS, by means of which the setpoint temperature Tp can be predetermined in terms of value, to which the laundry items are to be cooled at the end of the degerming operation.
- the control device CTRL is advantageously designed so that it starts after disinfecting and cooling down the laundry a previously directly or indirectly selected wash program.
- Indirect selection is understood to mean that a desired washing program is already selected with the selection "disinfecting".
- FIG. 3 shows a vertical section through a washing drying unit.
- laundry 1 which is located in a rotatable drum 2, which in turn is received in a swinging suspended, but not rotatable tub 3.
- the tub 3 is located with all other components of the washer-dryer unit in a housing 5.
- movable sleeve 6 is an access of created outside the housing 5 to the tub 3 and the drum 2; This access is closed by a door 7.
- An inlet 8 for fresh water and a drain 9 for wastewater, the latter also provided with a pump 10, are also present.
- a process air duct 1 1 with a fan 12 and a heater 13 are provided to drive process air, symbolized by arrows 14, through the drum 2 and the laundry 1 located therein.
- a condenser with which moisture which has extracted the heated by the heater 13 process air from the laundry, is condensed out of the process air, wherein the resulting liquid condensate flows into the tub 3 and is disposed of through the drain 9.
- Two temperature sensors connected to the temperature control unit TS 15 and 16 are used to control and regulate the temperature of the flowing process air 14.
- a first temperature sensor 15 in the process air duct 1 1 is placed so that it measures the temperature of the effluent directly from the tub 3 process air 14; the second temperature sensor 16 is placed in the process air duct 11 so that it measures the temperature of the process air 14 flowing from the heater 13.
- the process air 14 In order to allow a rapid heating to a desired high temperature Tp, the process air 14 must have a slightly above the temperature Tp when entering the tub 3; To control this, the second temperature sensor 16 is used.
- the first temperature sensor 15 the temperature of the laundry items 1 in the tub 1 can be estimated relatively accurately, so that exceeding the temperature Tp in the laundry items 12 can be safely avoided.
- the process air duct 1 1 with blower 12, heater 13, first temperature sensor 15 and second temperature sensor 16 also serves to sterilize the laundry 1 as described in a dry state by hot process air is conveyed through the dry laundry 1 in the manner already described. This is controlled by the already mentioned control unit CTRL, which is connected to all the components just mentioned for their operation and application, but not shown in Figure 3 for the sake of clarity. After sterilization, the laundry 1 can then be washed in a conventional manner.
- the combined washer-dryer also has the advantage that at the beginning of the washing process in their components due to the previous Entkeimreaes still stored residual heat for heating the possibly necessary for the washing process reheating the wash water can be used, which contributes to a total (further) energy savings.
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)
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL12718246T PL2707533T3 (pl) | 2011-05-09 | 2012-05-04 | Sposób wyjaławiania prania i zespół piorąco-suszący |
RU2013151659/12A RU2552513C1 (ru) | 2011-05-09 | 2012-05-04 | Способ дезинфекции белья и стирально-сушильная машина |
CN201280022358.3A CN103518013B (zh) | 2011-05-09 | 2012-05-04 | 用于消毒衣物的方法和洗涤-干燥单元 |
US14/116,500 US9109320B2 (en) | 2011-05-09 | 2012-05-04 | Method for sterilizing laundry, and washing-drying unit |
EP20120718246 EP2707533B1 (de) | 2011-05-09 | 2012-05-04 | Verfahren zum entkeimen von wäsche und waschtrockeneinheit |
KR20137029515A KR20140023342A (ko) | 2011-05-09 | 2012-05-04 | 세탁물을 살균하기 위한 방법 및 세탁 건조 유닛 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201110075501 DE102011075501A1 (de) | 2011-05-09 | 2011-05-09 | Verfahren zum schonenden Entkeimen von Wäsche und Waschtrockeneinheit |
DE102011075501.2 | 2011-05-09 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2012152683A1 true WO2012152683A1 (de) | 2012-11-15 |
Family
ID=46025743
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2012/058226 WO2012152683A1 (de) | 2011-05-09 | 2012-05-04 | Verfahren zum entkeimen von wäsche und waschtrockeneinheit |
Country Status (8)
Country | Link |
---|---|
US (1) | US9109320B2 (de) |
EP (1) | EP2707533B1 (de) |
KR (1) | KR20140023342A (de) |
CN (1) | CN103518013B (de) |
DE (1) | DE102011075501A1 (de) |
PL (1) | PL2707533T3 (de) |
RU (1) | RU2552513C1 (de) |
WO (1) | WO2012152683A1 (de) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6653419B2 (ja) * | 2016-09-12 | 2020-02-26 | パナソニックIpマネジメント株式会社 | 洗濯乾燥機 |
RU2677476C1 (ru) * | 2017-09-15 | 2019-01-17 | Российская Федерация, от имени которой выступает Министерство обороны Российской Федерации | Способ теплохимической дезинфекции и сушки вещевого имущества |
US10731289B2 (en) | 2017-10-26 | 2020-08-04 | Samsung Electronics Co., Ltd. | Clothes dryer and method for performing sterilization course thereof |
CN109594289A (zh) * | 2018-12-27 | 2019-04-09 | 无锡小天鹅股份有限公司 | 衣物处理装置的控制方法、装置以及衣物处理装置 |
CN112796079B (zh) * | 2020-12-31 | 2023-07-18 | 珠海格力电器股份有限公司 | 一种衣物灭菌装置、方法及衣物处理装置 |
DE102022207950A1 (de) | 2022-08-02 | 2024-02-08 | BSH Hausgeräte GmbH | Waschmaschine mit Luftheizung und Verfahren zu deren Betrieb |
DE102022207952A1 (de) | 2022-08-02 | 2024-02-08 | BSH Hausgeräte GmbH | Waschmaschine mit Luftheizung und verbessertes Hygieneverfahren bei deren Betrieb |
DE102022214450A1 (de) | 2022-12-30 | 2024-07-11 | BSH Hausgeräte GmbH | Waschmaschine mit Luftheizung und Aktivierung eines Bleichaktivators sowie Verfahren zu deren Betrieb |
DE102023100120A1 (de) | 2023-01-04 | 2024-07-04 | Miele & Cie. Kg | Wäschebehandlungsgerät mit Lüfter |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3343236A1 (de) | 1983-11-30 | 1985-06-05 | Hans 4600 Dortmund Baltes | Verfahren und vorrichtung zum trocknen und sterilisieren von geweben, insbesondere von empflindlichen geweben |
EP0262451A2 (de) * | 1986-09-26 | 1988-04-06 | Hans Baltes | Verfahren zum Trocknen und Sterilisieren von Gut im geschlossenen Kreislauf |
JPH04158896A (ja) * | 1990-10-22 | 1992-06-01 | Sanyo Electric Co Ltd | 全自動洗濯機 |
DE102005052960A1 (de) | 2005-11-03 | 2007-05-16 | Biotroc Patentverwertungsgmbh | Vorrichtung zum Waschen und Trocknen von Wäsche in Schrankform |
US20070169282A1 (en) * | 2004-05-31 | 2007-07-26 | Lg Electronics Inc. | Operating method of laundry device |
EP1980660A1 (de) * | 2006-01-30 | 2008-10-15 | Sanyo Electric Co., Ltd. | Waschmaschine |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0148385B1 (de) * | 1983-11-29 | 1997-10-29 | Hans Baltes | Trocknungsschrank und Verfahren zum Trocknen und Sterilisieren von Geweben |
DE19510001C2 (de) * | 1995-03-22 | 1998-01-22 | Patent Und Innovationsagentur | Trockenschrank mit verbesserter Energieausnutzung |
DE10029428A1 (de) | 2000-06-15 | 2002-01-03 | Bsh Bosch Siemens Hausgeraete | Luftführendes Haushaltsgerät mit waschbarem Filter |
KR101033588B1 (ko) * | 2004-05-31 | 2011-05-11 | 엘지전자 주식회사 | 세탁기의 운전 방법 |
DE102008062242A1 (de) * | 2008-12-16 | 2010-06-17 | Biotroc-Patentverwertungsgesellschaft Mbh & Co.Kg | Verfahren und Vorrichtung zur Reinigung, Desinfektion und/oder Sterilisierung von Kissen, Oberbetten oder dgl. |
-
2011
- 2011-05-09 DE DE201110075501 patent/DE102011075501A1/de not_active Withdrawn
-
2012
- 2012-05-04 US US14/116,500 patent/US9109320B2/en active Active
- 2012-05-04 CN CN201280022358.3A patent/CN103518013B/zh active Active
- 2012-05-04 WO PCT/EP2012/058226 patent/WO2012152683A1/de active Application Filing
- 2012-05-04 RU RU2013151659/12A patent/RU2552513C1/ru active
- 2012-05-04 KR KR20137029515A patent/KR20140023342A/ko not_active Application Discontinuation
- 2012-05-04 EP EP20120718246 patent/EP2707533B1/de active Active
- 2012-05-04 PL PL12718246T patent/PL2707533T3/pl unknown
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3343236A1 (de) | 1983-11-30 | 1985-06-05 | Hans 4600 Dortmund Baltes | Verfahren und vorrichtung zum trocknen und sterilisieren von geweben, insbesondere von empflindlichen geweben |
EP0262451A2 (de) * | 1986-09-26 | 1988-04-06 | Hans Baltes | Verfahren zum Trocknen und Sterilisieren von Gut im geschlossenen Kreislauf |
JPH04158896A (ja) * | 1990-10-22 | 1992-06-01 | Sanyo Electric Co Ltd | 全自動洗濯機 |
US20070169282A1 (en) * | 2004-05-31 | 2007-07-26 | Lg Electronics Inc. | Operating method of laundry device |
DE102005052960A1 (de) | 2005-11-03 | 2007-05-16 | Biotroc Patentverwertungsgmbh | Vorrichtung zum Waschen und Trocknen von Wäsche in Schrankform |
EP1980660A1 (de) * | 2006-01-30 | 2008-10-15 | Sanyo Electric Co., Ltd. | Waschmaschine |
Also Published As
Publication number | Publication date |
---|---|
DE102011075501A1 (de) | 2012-11-15 |
PL2707533T3 (pl) | 2015-08-31 |
CN103518013A (zh) | 2014-01-15 |
RU2552513C1 (ru) | 2015-06-10 |
EP2707533A1 (de) | 2014-03-19 |
CN103518013B (zh) | 2016-02-10 |
US20140082852A1 (en) | 2014-03-27 |
KR20140023342A (ko) | 2014-02-26 |
US9109320B2 (en) | 2015-08-18 |
EP2707533B1 (de) | 2015-03-11 |
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