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WO2006066681A1 - Dispositif de traitement de tissus - Google Patents

Dispositif de traitement de tissus Download PDF

Info

Publication number
WO2006066681A1
WO2006066681A1 PCT/EP2005/012508 EP2005012508W WO2006066681A1 WO 2006066681 A1 WO2006066681 A1 WO 2006066681A1 EP 2005012508 W EP2005012508 W EP 2005012508W WO 2006066681 A1 WO2006066681 A1 WO 2006066681A1
Authority
WO
WIPO (PCT)
Prior art keywords
tumble
reservoir
fabrics
dryer
fabric treatment
Prior art date
Application number
PCT/EP2005/012508
Other languages
English (en)
Inventor
Paul A. Anderson
Original Assignee
Unilever Plc
Unilever N.V.
Hindustan Lever Limited
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 Unilever Plc, Unilever N.V., Hindustan Lever Limited filed Critical Unilever Plc
Priority to EP05811162A priority Critical patent/EP1836341A1/fr
Priority to US11/793,905 priority patent/US20080201976A1/en
Publication of WO2006066681A1 publication Critical patent/WO2006066681A1/fr

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
    • D06F58/00—Domestic laundry dryers
    • D06F58/20—General details of domestic laundry dryers 
    • D06F58/203—Laundry conditioning arrangements

Definitions

  • the present invention relates to a device for treating fabrics inside a tumble dryer.
  • conditioner dispensing articles In the treatment of fabrics in a tumble dryer it is known to use conditioner dispensing articles .
  • a device for treating fabrics in a tumble dryer comprising a reservoir for storing a fabric treatment composition and a transfer surface to expose fabric treatment composition from the reservoir to directly contact fabrics in the dryer, thereby transferring a portion of the fabric treatment composition into contact with fabrics in the tumble dryer during a tumble drying cycle; characterised in that the transfer surface when attached to a fixing surface of the tumble dryer is inclined outwardly toward the interior of the dryer and 0°-45° relative to a vertical plane .
  • a method of treating fabrics in a tumble dryer during multiple tumble drying cycles using a device according to the first aspect of the invention comprising attaching the device to a fixing surface on the inside of a tumble dryer, preferably a non-rotating surface and more preferably the door such that the transfer surface when attached to the fixing surface is inclined outwardly and 0°- 45° relative to a vertical plane, and carrying out a tumble drying process with fabrics inside the tumble dryer .
  • the device is fixed in a central region of the fixing surface .
  • kits for the treatment of fabrics in a tumble drying cycle comprising the combination of the device of the first aspect of the invention having any/all of the above preferred features, together with a fabric treatment composition which may be contained .in a reservoir suitable for use with said device .
  • Instructions for use of the device according to the above described method preferably including installation/refilling of said reservoir according to the above method, may be included with the device or kit .
  • a tumble dryer with a device according to the invention attached to a fixing surface on the inside of the tumble dryer, preferably a non-rotating surface and more preferably the door such that the transfer surface when attached to the fixing surface is inclined outwardly and 0°-45° relative to a vertical plane .
  • a further advantage is that the increased frequency of physical contact can at least reduce the potential for excess amounts of the composition to build up at the transfer surface .
  • the fabric conditioning composition is a liquid (at tumble drying i . e . high temperature) which flows to transfer surface e . g . under gravity.
  • This build up has the negative impact in that it can result in excess delivery of the composition when a fabric finally contacts the window, resulting in deposition of large amounts of the formulation on to the fabrics .
  • This can result in consumer perceivable localised concentration of the composition on fabrics and lower than expected performance in so far as e . g . softening, anti-static and fragrance benefits .
  • the whole of the transfer surface is inclined as described above .
  • the transfer surface is preferably inclined 5°-40° and more preferably 15°-35° relative to a vertical plane and further preferably it is inclined 20°-25° relative to a vertical plane .
  • the inclination of the transfer surface relative to a longitudinal axis or plane of the device may be the same as the above described inclination.
  • the transfer surface may be convex or concaved however, it is preferably flattened, and more preferably flat to further increase the frequency of physical contact between fabrics in the tumble dryer during a tumble drying cycle and the whole of the transfer surface .
  • the inclination of the transfer surface may be such that the surface may proj ect to a maximum at its base, wherein the . base comprises " the lower part of the device when it is fixed in position in the dryer .
  • the transfer surface may form part of the reservoir which may be a removable from ( for replacement or refilling) or integral with a body portion of the device .
  • the reservoir may comprise one or more portions e . g . a perimeter portion surrounding the transfer surface, whose inclination corresponds with e . g . is the same as , the inclination of the transfer surface .
  • the transfer surface may comprise a solid surface or it may comprise a configuration of separate elements arranged together e . g. in a pattern, array or the like to provide the surface .
  • the transfer surface may be provided as an outer surface of a transfer member e . g . a compressed foam which is charged with composition . Compressed foam takes less time to charge (fill up) with composition, and so is effective more quickly- after initial installation.
  • the transfer surface may be an outer layer of a multi-layer transfer member .
  • the device may include reservoir charging means comprising one or more charging conduits for directing fabric treatment composition to one or more regions of the transfer surface .
  • the reservoir charging conduits may be defined by one or more recesses or projections e . g. proj ecting ribs or an ⁇ arrangement of corresponding peaks and troughs, wherein the area between ribs/ recesses/troughs define conduits or channels which direct the fabric treatment, composition to ' selected parts of the transfer means .
  • the reservoir may hold sufficient fabric composition for any number of drying cycles and for instance the reservoir may hold sufficient composition for a single cycle . With this arrangement, different compositions could be used for different drying cycles allowing great flexibility for the user .
  • the reservoir of the device of the invention may alternatively or additionally be capable of holding sufficient fabric treatment composition for a plurality of drying cycles of the tumble drier .
  • the device according to the invention may comprise a reservoir which is designed to be replaced when the fabric treatment composition is used up .
  • the reservoir may be provided in the form of a disposable plastic container e . g . bottle, carton or collapsible pouch which may have a peelable lid.
  • the reservoir may be designed to be recharged with a new fabric treatment composition when required.
  • the fabric treatment composition may be in the form of a liquid, solid or gel . Where a solid or gel is used ' , this may be liquid at operating temperatures of the dryer .
  • the composition preferably comprises at least a perfume component and optionally water and may also comprise one or more perfume solubilisers . In this way the composition can act as a freshening composition .
  • Figure 1 is a perspective view of a device according to one aspect of the invention (reservoir and transfer means not shown) ;
  • Figures 2a - 2c are side views of embodiments of the invention showing the inclination of the delivery window
  • Figure 3 is a enlarged view of the reservoir charging means of the device of figure 1 ;
  • Figures 4a - 4g are views of the reservoir for the device of figure 1.
  • a device 1 shown orientated upright and viewed in perspective for treating fabrics in a tumble dryer (not shown) during multiple tumble drying cycles , the device comprising a support member 2 and a reservoir 6 ( shown in figures 4a - 4g) for storing fabric treatment composition; transfer surface (not shown in figure 1 ) to expose fabric treatment composition from the reservoir 6 to directly contact fabrics in the dryer, thereby transferring a portion of the fabric treatment composition into contact with fabrics in the tumble dryer during a tumble drying cycle .
  • the device includes reservoir charging means 301 comprising one or more charging conduits for directing fabric treatment composition to one or more regions of the transfer means (generally indicated at 300) .
  • the hemispherical dome shape of the device is modified by inclining the portion housing the transfer means 300 outwardly, so that in use (i . e . attached to an upright tumble dryer door or wall) the transfer means 300 is orientated upright .
  • the device has a transfer means 300 comprises two flow control members : an outer compressed foam layer providing the transfer surface and an inner delicate but precise flow control member (outer member shown at 300 , inner member not shown but located directly behind outer member) .
  • the inner flow control member is a polypropylene membrane with a thickness of 160 microns and a pore size of 0.2 microns . However other thickness/pore size values may be used, the appropriate pore size and thickness of the membrane varying depending on the fabric treatment composition viscosity, and the delivery rate required.
  • the compressed foam of the transfer surface has a compression ratio (or ⁇ firmness' ) of 8 , having been pre- compressed (before fitting to the device ) from an initial thickness of 42mm to a compressed thickness of 6mm.
  • the foam has an (initial, i . e . pre-compression) pore size ( PPI , pores per liner inch) of 80 ppi .
  • the foam and membrane 300 are fixed around their perimeters preferably by ultrasonic welds and preferably, to enable a better seal (for the purpose of preventing leaking of the fabric treatment composition) , by a substantially continuous weld, to a window frame in a lower part of the device (not shown in figure 1 but window area indicated at 300 ) .
  • the lower part of the device including the foam transfer surface 300 are inclined outwardly such that when the device is attached centrally to the inside of the tumble dryer door, which is generally upright and in this case vertical , the foam transfer surface and preferably the surrounding parts of the device are inclined 25 degrees (angle ⁇ in figure 2a) to the longitudinal axis of the device which is aligned with the upright axis of the door .
  • the foam is a heavily flattened convex shape, having only minimum curvature .
  • the maximum proj ection occurs at the base of the device . This inclination increases the physical contact between fabrics in the tumble dryer during a tumble drying cycle and the transfer surface .
  • the transfer surface may alternatively be convex as in figure 2b or flat as in figure 2c .
  • the inlet port 52 is integral with the window frame, again, to enable a leak proof system.
  • the manufacture of the framed membrane involves melting upstanding ribs on the frame by ultrasonic welding so as to weld these to the perimeter of the membrane .
  • the framed membrane is attached ' to the support member 2 (by the ultrasonic welding which is done with the port/frame/membrane in situ in the device body) .
  • the area inside of the welded perimeter provides the effective flow control area that is to say the active part of the flow control members .
  • Another embodiments may have has larger area of
  • the effective part of' the transfer means has an
  • Behind the members is a recess of corresponding shape which has a slightly proj ecting perimeter region for attachment of the frame thereto, so that a gap is defined between the inner member and the recess wall .
  • a small amount of freshener fluid can collect to ⁇ charge' or ⁇ feed' the members continuously without causing leakage' s .
  • the reservoir charging means 301 comprises a recess behind the transfer means 300, and includes a combination of parallel and radially arranged proj ecting ribs which define reservoir charging conduits (between adj acent ribs ) function to deliver fabric treatment composition to all parts , including the periphery of transfer means 300 , preventing blocking of any parts of the transfer means .
  • the ribs 60 also function to assist priming or charging of the device quickly (ie . When using the device initially) .
  • the reservoir charging means could include a similar arrangement of recesses to define the charging conduits .
  • Reservoir 6 is attachable to said support member or device housing 2 , the support member 2 including attachment means 2 comprising a strip of repositionable fastener material e . g . hook and loop or mushroom head type e . g . Velcro TM (not shown) .
  • a strip of corresponding repositionable fastener material is also attached to the interior of the dryer for attachment of the support member 2 to the tumble dryer door .
  • the support member 2 is a generally hemispherical rigid element with a circular periphery 14 approximately 100 mm in diameter .
  • Some modern tumble dryers have a one or more small holes in the inside of the door to allow moisture out of the tumble dryer drum to condense in a tray below or vented to the outside of the machine .
  • a hook or claw attachment on the device is included for supplemental attachment (not shown) .
  • the reservoir 6 comprises a rigid dome shaped body 20 housing a reservoir bottle 22 configured for snap-fit engagement in recess 50 of support member 2.
  • the reservoir recess 50 constitutes a maj or part of the upper half of the member 2 ( ⁇ upper' when orientated upright) .
  • the reservoir 6 is attachable to the support member 2 so as to lock into position.
  • the reservoir body 20 includes a chamber or inlet port 52 , having a capacity to hold a predetermined volume of fluid freshener, which is, in this embodiment 1.5ml and is sufficient for one drying cycle of 1 hour at 60 degrees C .
  • the inlet port may have a volume sufficient for any number of cycles .
  • the port 52 is located beneath (when the device is held oriented as shown in figure 1 - as it would be in use) and in fluid communication with the reservoir recess 50 to allow liquid to enter the port 52 from the reservoir bottle 22 when it is in place in the recess 50.
  • the rear of the device (not shown) is recessed and also contains a hook 300 for supplemental attachment to the tumble dryer door of e . g . condenser dryers (which have slots or holes in the door or pitted surface) .
  • a hook shape is shown comprising an elongate arm which is pivotable about a pivot through about 90 degrees , between a storage position in which the hook is enclosed within the rear recess and an attachment position in which it proj ects from the device .
  • the hook is curved only where it connects with the device - it is straight at the opposite end, as the gentle curve blocks the removal of the machine filter in some machines , so needs to be removed from the design for such machines .
  • the reservoir bottle 22 comprises ⁇ a polypropylene bottle with body portion and neck portion • 214.
  • the body portion is defined by three main generally crescent shaped faces : a front face 222 and a rear face 224 ' and a shoulder face 226.
  • the front and rear faces 222 , 224 extend from opposed edges of the shoulder face 226 and depend therefrom to meet at a common curved edge ' 228.
  • the radius of curvature of the rear face 224 is less than that of the front face 222.
  • the reservoir recess 50 has a curved back wall 51 , base wall 53 and top wall or lip 55 which correspond ⁇ in shape with the rear face 222 shoulder face 226 and edge 228 respectively so that the reservoir is retained in the recess by the walls 53 , 55 , and by the engagement of the neck portion ' 214 with the port 52.
  • the neck is configured for engagement with the inlet port 52 , taking into account of any seals :
  • the inlet port 52 may include an annular resilient seal of a thermoplastic elastomer (TPE) to ensure leak proof engagement of the reservoir bottle 22 with the port 52.
  • TPE thermoplastic elastomer
  • the reservoir bottle 22 preferably has a pin-hole (not shown) in an upper region e . g. the edge region or front face or back surface so that as fluid freshener leaves the bottle it can be replaced with air, gradually, so as not to interfere with the gradual flow of the fluid to the membrane . This has the advantage of ensuring consistency in delivery of composition.
  • Insertion and removal is aided by limited flexibility of the refill bottle 22 and support member 2 such that snap-fit installation and removal can be effected easily.
  • the reservoir In use the reservoir is disposed with the neck pointing downwards , engaging the inlet port so that fluid from the reservoir flows , under gravity to the port and then to the members from where it evaporates/transfers in the dryer .
  • the fabric treatment composition may take any suitable form, for example it may be as described in any of the following embodiments (e . g. solid, liguid, gel at room temperature) .

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Accessory Of Washing/Drying Machine, Commercial Washing/Drying Machine, Other Washing/Drying Machine (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)

Abstract

La présente invention concerne un dispositif de traitement de tissus dans un sèche-linge à tambour qui comprend un réservoir, pour stocker une composition de traitement de tissus, et une surface de transfert, pour mettre en contact directement la composition de traitement de tissus contenue dans le réservoir avec les tissus dans le sèche-linge. Ainsi une partie de la composition de traitement de tissus rentre en contact avec les tissus contenus dans le sèche-linge à tambour lors d’un cycle de séchage. Le dispositif de traitement de tissus est caractérisé en ce que la surface de transfert, lorsqu’elle est attachée à une surface de fixation du sèche-linge à tambour, est inclinée extérieurement vers l’intérieur du sèche-linge et forme un angle compris entre 0° et 45° par rapport à un plan vertical.
PCT/EP2005/012508 2004-12-22 2005-11-21 Dispositif de traitement de tissus WO2006066681A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP05811162A EP1836341A1 (fr) 2004-12-22 2005-11-21 Dispositif de traitement de tissus
US11/793,905 US20080201976A1 (en) 2004-12-22 2005-11-21 Fabric Treatment Device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0428090.5 2004-12-22
GBGB0428090.5A GB0428090D0 (en) 2004-12-22 2004-12-22 Fabric treatment device

Publications (1)

Publication Number Publication Date
WO2006066681A1 true WO2006066681A1 (fr) 2006-06-29

Family

ID=34113057

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2005/012508 WO2006066681A1 (fr) 2004-12-22 2005-11-21 Dispositif de traitement de tissus

Country Status (6)

Country Link
US (1) US20080201976A1 (fr)
EP (1) EP1836341A1 (fr)
AR (1) AR052063A1 (fr)
GB (1) GB0428090D0 (fr)
TW (1) TW200636115A (fr)
WO (1) WO2006066681A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3202968A4 (fr) * 2014-09-30 2018-07-11 LG Electronics Inc. Appareil de traitement de vêtements

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1554422A1 (fr) * 2002-10-23 2005-07-20 Unilever Plc Diffuseur pour seche-linge a tambour
KR101072088B1 (ko) * 2008-09-26 2011-10-10 엘지전자 주식회사 액체 저장 용기 및 그를 포함하는 의류 건조기
TWI720422B (zh) 2013-09-27 2021-03-01 美商應用材料股份有限公司 實現無縫鈷間隙填充之方法

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TW200636115A (en) 2006-10-16
US20080201976A1 (en) 2008-08-28
EP1836341A1 (fr) 2007-09-26
AR052063A1 (es) 2007-02-28
GB0428090D0 (en) 2005-01-26

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