EP2113605B1 - Haushaltswasch- und/oder Trocknungsgerät und entsprechendes Betriebsverfahren - Google Patents

Haushaltswasch- und/oder Trocknungsgerät und entsprechendes Betriebsverfahren Download PDF

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Publication number
EP2113605B1
EP2113605B1 EP08154989.1A EP08154989A EP2113605B1 EP 2113605 B1 EP2113605 B1 EP 2113605B1 EP 08154989 A EP08154989 A EP 08154989A EP 2113605 B1 EP2113605 B1 EP 2113605B1
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Prior art keywords
ultraviolet light
laundry
drying appliance
light source
casing
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EP08154989.1A
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English (en)
French (fr)
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EP2113605A1 (de
Inventor
Kevin Breese
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Electrolux Home Products Corp NV
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Electrolux Home Products Corp NV
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Publication of EP2113605A1 publication Critical patent/EP2113605A1/de
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    • 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
    • D06F58/30—Drying processes 
    • 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
    • D06F58/10—Drying cabinets or drying chambers having heating or ventilating means
    • D06F58/14—Collapsible drying cabinets; Wall mounted collapsible hoods
    • 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

Definitions

  • rotary-drum laundry driers usually comprise a substantially parallelepiped-shaped outer casing; a cylindrical bell-shaped drum for housing the laundry to be dried, and which is housed in axially rotating manner inside the casing to rotate about a horizontal longitudinal axis, and directly facing a laundry loading and unloading opening formed in the front face of the casing; a door hinged to the front face of the casing to rotate to and from a rest position closing the opening in the front face of the casing to seal the casing and the bell-shaped drum; and an electric motor assembly for rotating the laundry drum about its longitudinal axis inside the casing.
  • Rotary-drum laundry driers of the above type also comprise a closed-circuit, hot-air generator designed to circulate inside the bell-shaped drum a stream of hot air with a low moisture content, and which flows through the bell-shaped drum and over the laundry inside the drum to rapidly dry the laundry.
  • W02007/058478A discloses a sterilizable washing machine using ultraviolet radiation, and a sterilizable washing method in the same.
  • the sterilizable washing machine includes a cabinet having an inlet for putting the laundry into the washing machine, a door installed at the cabinet, for opening and closing the inlet of the cabinet, a tub installed in the cabinet with a buffing function and containable wash water, a drum rotatably installed inside the tub for performing washing, a gasket G installed between the inlet of the cabinet and the tub, for sealing the gap between the door and the tub, and an ultraviolet light source installed at the gasket, for radiating ultraviolet rays into the drum.
  • WO03/074776A discloses An in-home method for treating a fabric article in need of treatment and a new to the world, in-home, self-contained, stand alone fabric article treating apparatus, such as a "cabinet"-type of apparatus, useful in such method is provided.
  • a household laundry washing and/or drying appliance as claimed in Claim 1 and preferably, though not necessarily, in any one of the Claims depending directly or indirectly on Claim 1.
  • number 1 indicates as a whole a household laundry washing and/or drying appliance suitable to improve self-cleaning capabilities of fabrics coated with nano-particles including titanium dioxide or similar photocatalyst chemical agents.
  • Household appliance 1 essentially comprises a outer casing 2 having inside a laundry storage compartment for housing the clothing to be cleaned, and an ultraviolet light source which is housed in casing 2 for lighting up, on command, the laundry storage compartment, so as to activate the photocatalyst chemical reactions that dissolve organic stains on any fabric stored therein and which has photocatalyst self-cleaning capabilities, i.e. on any fabric coated with nano-particles including titanium dioxide or similar photocatalyst chemical agents.
  • household appliance 1 is a home laundry drier which comprises a preferably, though not necessarily, parallelepiped-shaped outer box-like casing 2; a preferably, though not necessarily, cylindrical bell-shaped revolving drum 4 for housing the laundry to be dried, and which is housed in axially rotating manner inside casing 2 to rotate freely about a preferably, though not necessarily, horizontally-oriented longitudinal axis L, directly facing a laundry loading and unloading opening 2a formed in the front face of casing 2; and a door 5 hinged to the front face of casing 2 to rotate to and from a rest position closing opening 2a in the front face to seal casing 2 and drum 4.
  • the laundry storage compartment of household appliance 1 is defined by the empty space inside revolving drum 4.
  • Laundry drier 1 also comprises an electric motor assembly (not shown) which, on command, rotates drum 4 about longitudinal axis L inside casing 2; and a closed-circuit, hot-air generator housed inside casing 2 and designed to circulate inside revolving drum 4 a stream of hot air with a low humidity content, and which flows over, to rapidly dry, the laundry inside drum 4.
  • an electric motor assembly (not shown) which, on command, rotates drum 4 about longitudinal axis L inside casing 2
  • a closed-circuit, hot-air generator housed inside casing 2 and designed to circulate inside revolving drum 4 a stream of hot air with a low humidity content, and which flows over, to rapidly dry, the laundry inside drum 4.
  • the hot-air generator provides for gradually drawing air from revolving drum 4; extracting surplus moisture from the hot air drawn from drum 4; heating the dehumidified air to a predetermined temperature, normally higher than the temperature of the air from revolving drum 4; and feeding the heated, dehumidified air back into revolving drum 4, where it flows over, to rapidly dry, the laundry inside the drum.
  • the hot-air generator draws air from revolving drum 4 (i.e. from the laundry storage compartment of household appliance 1) via an inlet 6 formed in the door 5 inner wall which is faced to the front opening of revolving drum 4 when the latter is in its rest position, and feeds the heated, dehumidified air back into revolving drum 4 (i.e. into the laundry storage compartment of household appliance 1) via an outlet (not shown) coupled in airtight manner directly to the perforated, or at any rate permeable to air, end wall of revolving drum 4.
  • Casing 2 revolving drum 4, door 5, the electric motor assembly, and the hot-air generator are commonly known parts in the industry, and therefore not described in detail.
  • door 5 of laundry drier 1 is provided with at least one electric ultraviolet light lamp 3 which is positioned on the inner wall of door 5 so as to be faced to the end wall of revolving drum 4 when door 5 is in its rest position, and which, on command, is able to light up the inside of drum 4 (i.e. the laundry storage compartment of household appliance 1) with an ultraviolet light having a wavelength or a wavelengths spectrum comprised between 370 nanometers and 10 nanometers (i.e.
  • the at least one electric ultraviolet light lamp 3 is turned on and off by the electronic central control unit (not shown) of laundry drier 1, according to a user-selected photocatalyst cleaning cycle characterized by a specific switching-on time-limit of the ultraviolet light lamp 3.
  • a given number of different photocatalyst cleaning cycles may be stored in the electronic central control unit (not shown) of laundry drier 1, and the user can manually select the desired photocatalyst cleaning cycle, i.e. the desired switching-on time-limit of the ultraviolet light lamp 3, via the external control panel 7 of laundry drier 1.
  • laundry drier 1 is provided with two ultraviolet electric lamps 3 preferably, though not necessarily, of fluorescent type, which are recessed on the inner wall of door 5 on both sides of hot-air generator inlet 6.
  • the ultraviolet light source may use ultraviolet LED lamps or ultraviolet Semiconductor Light Matrix (SLM) lamps or other types of ultraviolet light lamps belonging to the electric arc lamp family.
  • SLM Semiconductor Light Matrix
  • the ultraviolet light source may comprise a number of ultraviolet light lamps 3, each of which is recessed into a respective longitudinal projecting rib realized on the inner surface of the cylindrical wall of revolving drum 4.
  • the ultraviolet light source also comprises an electronic power control unit (not shown) which drives lamp 3 to control the candlepower of the ultraviolet light emitted by lamp 3.
  • This electronic power control unit may be electrically connected to the electronic central control unit (not shown) of laundry drier 1, for allowing said electronic central control unit to control the candlepower of the ultraviolet light emitted by lamp 3 according to the user-selected photocatalyst cleaning cycle.
  • the user can manually select the desired switching-on time-limit of the ultraviolet light lamp 3 and the desired or most appropriate candlepower of the ultraviolet light illuminating the inside of revolving drum 4 (i.e. the laundry storage compartment of household appliance 1), to optimize the photocatalyst self-cleaning capabilities of the particular photocatalyst chemical agents currently inside revolving drum 4.
  • electric lamp 3 may be able to emit an ultraviolet light having any wavelength or any wavelengths spectrum comprised between 370 nanometers and 10 nanometers (i.e. any wavelength within the ultraviolet light spectrum), and the electronic power control unit (not shown) which drives lamp 3 also controls the wavelength of the ultraviolet light emitted by lamp 3.
  • the electronic power control unit may be electrically connected to the electronic central control unit (not shown) of laundry drier 1, for allowing said electronic central control unit to regulate the wavelength or wavelengths spectrum of the ultraviolet light emitted by lamp 3 according to a user-selected photocatalyst cleaning cycle.
  • the user can also manually select the most appropriate wavelength or wavelengths spectrum of the ultraviolet light illuminating the inside of revolving drum 4 (i.e. the laundry storage compartment of household appliance 1) to maximize the photocatalyst self-cleaning capabilities of the particular photocatalyst chemical agents currently inside revolving drum 4.
  • laundry drier 1 General operation of laundry drier 1 is clearly inferable from the above description with no further explanation required, other than to state that, via the laundry drier external control panel 7, the user can request laundry dryer 1 to perform a photocatalyst cleaning cycle comprising the step of switching on the ultraviolet light lamp 3 for a given switching-on time-limit, to illuminate the laundry storage compartment (i.e. the inside of revolving drum 4) for activating the photocatalyst chemical reactions that dissolve organic stains on any fabric stored therein and which has photocatalyst self-cleaning capabilities.
  • a photocatalyst cleaning cycle comprising the step of switching on the ultraviolet light lamp 3 for a given switching-on time-limit, to illuminate the laundry storage compartment (i.e. the inside of revolving drum 4) for activating the photocatalyst chemical reactions that dissolve organic stains on any fabric stored therein and which has photocatalyst self-cleaning capabilities.
  • Laundry drier 1 can be used for both drying moist laundry like known home laundry driers, or activating the photocatalyst self-cleaning capabilities of any fabric coated with nano-particles including titanium dioxide or similar photocatalyst chemical agents on cloudy days.
  • laundry drier 1 can also be used for accelerating the photocatalyst chemical reaction that dissolve organic stains, thus reducing the time requested for self-cleaning to any fabric coated with nano-particles including titanium dioxide or similar photocatalyst chemical agents.
  • household appliance 1 may be a home laundry washing machine.
  • revolving drum 4 is housed in axially rotating manner into a watertight, preferably, though not necessarily, substantially bell-shaped washing tub which is suspended horizontally and in floating manner inside casing 2 via a suspension system comprising a number of coil springs combined with one or more vibration dampers.
  • the front opening of the washing tub is watertight connected to opening 2a on the front face of casing 2 via a cylindrical elastic-deformable bellows, and door 5 is hinged to the front face of casing 2 to rotate to and from a rest position in which door 5 closes opening 2a of casing 2 to watertight seal the washing tub.
  • the ultraviolet light lamp 3 may be located either on the inner wall of door 5 as disclosed above, or into a suitable seat realized on the cylindrical bellows connecting the front opening of the washing tub to the laundry loading and unloading opening 2a on the front face of casing 2.
  • the ultraviolet light source may consist of a number of ultraviolet light lamps 3, each of which is recessed into a respective longitudinal projecting rib realized on the cylindrical wall of revolving drum 4.
  • household appliance 1 may be a wardrobe-like drying cabinet preferably, though not necessarily, suitable to be placed on the worktop of a traditional laundry washing machine.
  • casing 2 consists of a parallelepiped-shaped inner foldable supporting frame comprising a bottom base plate 8 and a top base plate 9 rigidly connected one to the other via a number of foldable vertical uprights (not shown); and of a tubular-shaped external envelop 10 wrapping the inner foldable supporting frame to define on the inside a parallelepiped-shaped laundry storage compartment where to hang the clothing to be cleaned, and which is provided with a vertical zipper 11 allowing the user to manually open envelop 10 to put the clothing in the laundry storage compartment.
  • the ultraviolet light source comprises one or more electric ultraviolet light lamps 3 housed into, or at least faced to, the parallelepiped-shaped laundry storage compartment for illuminating, on command, the clothing placed therein, so as to activate the photocatalyst self-cleaning capabilities of any fabric coated with nano-particles including titanium dioxide or similar photocatalyst chemical agents.
  • the ultraviolet light source preferably, though not necessarily, comprises a first electric ultraviolet light lamp 3 recessed into bottom base plate 8 for illuminating the clothing from below, and a second electric ultraviolet light lamp 3 recessed into top base plate 9 for illuminating the clothing from top.
  • drying cabinet 1 comprises an electronic central control unit (not shown) which turns on and off the ultraviolet light lamp/s 3 according to a user-selected photocatalyst cleaning cycle.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Accessory Of Washing/Drying Machine, Commercial Washing/Drying Machine, Other Washing/Drying Machine (AREA)

Claims (11)

  1. Haushalts-Wäschewasch- und/oder Trocknergerät (1), umfassend ein Außengehäuse (2) mit einem inneren Wäscheaufnahmefach (4, 10) zur Unterbringung der zu reinigenden Kleider, und ferner umfassend eine UV-Lichtquelle (3) zur Beleuchtung des Wäscheaufnahmefaches (4) auf Befehl, um die photokatalytischen chemischen Reaktionen zu aktivieren, die organische Flecken auf jedem darin enthaltenen Stoff lösen, und die photokatalytische Selbstreinigungsfähigkeiten besitzt, wobei das Haushalts-Wäschewasch- und/oder Trocknergerät (1) auch eine elektronische, zentrale Steuerungseinheit umfasst, die die UV-Lichtquelle gemäß einem benutzergewählten photokatalytischen Reinigungszyklus ein- und ausschaltet, wobei die UV-Lichtquelle (3) wenigstens eine UV-Lichtlampe (3) umfasst, die dem Wäscheaufnahmefach (4, 10) zugewandt ist und Licht mit einer Wellenlänge oder einem Wellenlängenspektrum zwischen 370 Nanometern und 10 Nanometern abgibt, dadurch gekennzeichnet, dass die UV-Lichtquelle (3) auch eine elektronische Energiesteuerungseinheit umfasst, die die mindestens eine UV-Lichtlampe (3) betreibt, um die Lichtstärke zu steuern und/oder die Wellenlänge oder das Wellenlängenspektrum des von der Lampe (3) abgegebenen UV-Lichtes zu wählen.
  2. Haushalts-Wäschewasch- und/oder Trocknergerät gemäß Anspruch 1, wobei die elektronische, zentrale Steuerungseinheit mit einem externen Bedienfeld (7) des Haushalts-Wäschewasch- und/oder Trocknergeräts (1) verbunden ist, um dem Benutzer die manuelle Auswahl des Einschaltzeitlimits der UV-Lichtquelle (3) und/oder der Lichtstärke des von der UV-Lichtquelle abgegebenen UV-Lichts und/oder der Wellenlänge oder des Wellenlängenspektrums des von der UV-Lichtquelle (3) abgegebenen Lichts zu erlauben.
  3. Haushalts-Wäschewasch- und/oder Trocknergerät gemäß einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass dieses auch eine glockenförmige, sich drehende Trommel (4) umfasst, die auf axial rotierende Weise im Gehäuse (2) untergebracht ist, direkt einer Wäschelade- und - entladeöffnung (2a) in einer Hauptfläche des Gehäuses (2) zugewandt, und eine Tür (5), die schwenkbar an der Hauptfläche des Gehäuses (2) aufgehängt ist, um in eine und aus einer Ruheposition zu rotieren, welche die Wäschelade- und - entladeöffnung (2a) schließt, um das Gehäuse (2) und die sich drehende Trommel (4) abzudichten; wobei der Raum innerhalb der sich drehenden Trommel (4) das Wäscheaufnahmefach des Haushalts-Wäschewasch- und/oder Trocknergeräts (1) begrenzt.
  4. Haushalts-Wäschewasch- und/oder Trocknergerät gemäß Anspruch 3, dadurch gekennzeichnet, dass dieses auch einen Heißluftgenerator umfasst, der in dem Gehäuse (2) untergebracht ist und dazu ausgeführt ist, in der sich drehenden Trommel (4) einen Heißluftstrom mit niedrigem Feuchtigkeitsgehalt zu zirkulieren, und der über die Wäsche in der Trommel (4) strömt, um diese rasch zu trocknen.
  5. Haushalts-Wäschewasch- und/oder Trocknergerät gemäß Anspruch 3, wobei die sich drehende Trommel (4) auf axial rotierende Weise in einem im wesentlichen glockenförmigen Waschbehälter untergebracht ist, der schwebend in dem Gehäuse (2) aufgehängt ist; wobei die Frontöffnung des Waschbehälters über einen zylindrischen, elastisch verformbaren Balg wasserdicht mit der Wäschelade- und -entladeöffnung (2a) auf der Hauptfläche des Gehäuses (2) verbunden ist und die Tür (5) an der Hauptfrontfläche des Gehäuses (2) schwenkbar so aufgehängt ist, dass sie in eine und aus einer Ruheposition rotiert, in der die Tür (5) die Wäschelade- und - entladeöffnung (2a) abschließt, um den Waschbehälter wasserdicht abzudichten.
  6. Haushalts-Wäschewasch- und/oder Trocknergerät gemäß Anspruch 3 oder 5, wobei die mindestens eine UV-Lampe (3) so in der Tür (5) versenkt ist, dass sie der Endwand der sich drehenden Trommel (4) zugewandt ist, wenn sich die Tür (5) in ihrer Ruheposition befindet.
  7. Haushalts-Wäschewasch- und/oder Trocknergerät gemäß Anspruch 1 oder 2, wobei das Gehäuse (2) einen Parallelepipedförmigen, inneren, zusammenlegbaren Stützrahmen (8, 9) und eine äußere Hülle (10) zum Einhüllen des inneren, zusammenlegbaren Stützrahmens (8, 9) umfasst, um an der Innenseite ein Parallelepiped-förmiges Wäscheaufnahmefach zu begrenzen, wo die zu reinigende Wäsche aufzuhängen ist.
  8. Haushalts-Wäschewasch- und/oder Trocknergerät gemäß Anspruch 7, wobei die äußere Hülle (10) mit einem Reißverschluss (11) ausgerüstet ist, der dem Benutzer das manuelle Öffnen der Hülle (10) erlaubt, um die Wäsche in das Wäscheaufnahmefach zu legen.
  9. Haushalts-Wäschewasch- und/oder Trocknergerät gemäß Anspruch 7 oder 8, wobei der innere, zusammenlegbare Stützrahmen eine untere Basisplatte (8) und eine obere Basisplatte (9) umfasst, die über eine Anzahl vertikaler Stützen starr miteinander verbunden sind; wobei die UV-Lichtquelle (3) wenigstens eine UV-Lampe (3) umfasst, die in der unteren Basisplatte (8) und/oder in der oberen Basisplatte (9) versenkt ist.
  10. Haushalts-Wäschewasch- und/oder Trocknergerät gemäß einem der vorangehenden Ansprüche, wobei die UV-Lampe (3) eine Lichtbogenlampe oder eine LED-Lampe oder eine Halbleiter-Lichtmatrix-Lampe (SLM-Lampe) ist.
  11. Verfahren zur Reinigung von Stoffen, die mit Nanopartikeln beschichtet sind, einschließlich Titandioxid oder ähnlicher photokatalytischer chemischer Mittel, durch Verwendung eines Haushalts-Wäschewasch- und/oder Trocknergeräts (1), dadurch gekennzeichnet, dass das Verfahren umfasst:
    - Einlegen eines Stoffteiles, das mit Nanopartikeln, einschließlich Titandioxid oder ähnlicher photokatalytischer chemischer Mittel, beschichtet ist, in ein Haushalts-Wäschewasch- und/oder Trocknergerät (1), das ein Außengehäuse (2) mit einem inneren Wäscheaufnahmefach (4, 10) zur Aufnahme der zu reinigenden Kleidung umfasst, ferner eine UV-Lichtquelle (3) zur Beleuchtung des Wäscheaufnahmefaches (4) auf Befehl, und eine elektronische, zentrale Steuerungseinheit, welche die UV-Lichtquelle (3) betreibt, um die Lichtstärke zu steuern und/oder die Wellenlänge oder das Wellenlängenspektrum des von der UV-Lichtquelle (3) abgegebenen Lichts zu wählen, und in der ein oder mehrere von einem Benutzer wählbare photokatalytische Reinigungszyklen gespeichert sind;
    - Wählen eines photokatalytischen Reinigungszyklus;
    - mit Hilfe der elektronischen, zentralen Steuerungseinheit Einschalten der UV-Lichtquelle (3) für ein gegebenes Einschaltzeitlimit, um die photokatalytischen chemischen Reaktionen zu aktivieren, die organische Flecken auf dem Stoffteil lösen, und Ausschalten der UV-Lichtquelle (3) mittels der elektronischen, zentralen Steuerungseinheit nach Maßgabe des gewählten photokatalytischen Reinigungszyklus.
EP08154989.1A 2008-04-23 2008-04-23 Haushaltswasch- und/oder Trocknungsgerät und entsprechendes Betriebsverfahren Active EP2113605B1 (de)

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EP3449947A1 (de) 2017-08-28 2019-03-06 Vestel Beyaz Esya Sanayi Ve Ticaret A.S. Sterilisationssystem und eine tür damit

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SI2759633T1 (sl) 2013-01-29 2016-02-29 V-Zug Ag Gospodinjska naprava s katalitičnim čiščenjem
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US10111574B2 (en) 2014-01-24 2018-10-30 The Procter & Gamble Company Method for treating dishware
US20150211165A1 (en) * 2014-01-24 2015-07-30 The Procter & Gamble Company Method for Treating Laundry
US10098519B2 (en) 2014-01-24 2018-10-16 The Procter & Gamble Company Lighted dispenser
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US20220118129A1 (en) * 2020-10-16 2022-04-21 Matthew Steven Ramirez System and Method for Disinfecting and Drying of Personal Items and Clothing Materials

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EP3449947A1 (de) 2017-08-28 2019-03-06 Vestel Beyaz Esya Sanayi Ve Ticaret A.S. Sterilisationssystem und eine tür damit

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