EP1721555A1 - Sac à poussières - Google Patents

Sac à poussières Download PDF

Info

Publication number: EP1721555A1
Authority: EP; European Patent Office
Prior art keywords: filter bag; filter; nonwoven fabric; bag according; air
Prior art date: 2005-05-12
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.): Granted

Application number

EP06113505A

Other languages

German (de)

English (en)

Other versions

EP1721555B1 (fr

Inventor

Wolfgang Czado

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.)

Melitta Europa GmbH and Co KG

Original Assignee

Melitta Haushaltsprodukte GmbH and Co KG

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.)

2005-05-12

Filing date

2006-05-04

Publication date

2006-11-15

2006-05-04 Application filed by Melitta Haushaltsprodukte GmbH and Co KG filed Critical Melitta Haushaltsprodukte GmbH and Co KG

2006-05-04 Priority to PL06113505T priority Critical patent/PL1721555T3/pl

2006-11-15 Publication of EP1721555A1 publication Critical patent/EP1721555A1/fr

2012-11-14 Application granted granted Critical

2012-11-14 Publication of EP1721555B1 publication Critical patent/EP1721555B1/fr

Status Not-in-force legal-status Critical Current

2026-05-04 Anticipated expiration legal-status Critical

Images

Classifications

- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/10—Filters; Dust separators; Dust removal; Automatic exchange of filters
- A47L9/14—Bags or the like; Rigid filtering receptacles; Attachment of, or closures for, bags or receptacles

Definitions

the present invention relates to a filter bag, in particular for vacuum cleaners, with an inflow opening, which is surrounded by a holding plate, and an air-permeable nonwoven fabric for filtering the air flowing through.
filter bags that comprise two layers of nonwoven fabric, which are welded together at the edges and have on one side an inflow opening into which a nozzle of a vacuum cleaner can be inserted.
air can be sucked through the filter bag and filtered, with the dirt depositing over its entire area in the area of the nonwoven fabric.
a disadvantage of these filter bags is that the material of the nonwoven fabric is relatively expensive and also impacting dirt particles can easily damage the nonwoven fabric.
the level of the filter bag can be detected only poorly, as well as a filled bag still has sufficient air permeability.
a filter bag which in addition to an air-permeable nonwoven fabric has an air-impermeable film which is tightly welded to the nonwoven fabric.
the filter bag is made of different materials, the cost-effective film reduces the overall price in the production of the filter bag.
the film can be provided at locations that are easily damaged, for example, with respect to the inflow opening, so that impacting particles do not damage the nonwoven fabric, but only impinge on the durable film.
the filter bag is formed from two edge-side welded together layers, wherein a layer of nonwoven fabric and a layer of film.
the layers can have the same cut, so that a particularly effective production of the filter bag is possible. Then only about 50% of the surface is available as a filter surface, which is still sufficient for most applications.
the film is transparent and thus allows a level control. This allows the user to easily see when the filter bag is filled and needs to be replaced. In addition, also sucked valuables can be seen through the film, which is an improvement, otherwise the filter bag would have to be destroyed in order to get to such valuables.
the nonwoven fabric is preferably multi-layered and comprises a prefilter made of a volume fleece with a rough surface and a main filter made of finer nonwoven fabric.
the nonwoven fabric may consist of a multilayer of a combination of spunbond and meltblown.
nanofibers it is possible to coat the nonwoven fabric with nanofibers, in particular to provide the nanofibers on the meltblown fabric, so that a rough surface is produced on the inside, which can not clog so quickly.
the film is provided on the inside of the bag with an antibacterial coating, so that even with longer lifetimes, the growth of germs within the filter bag is limited.
the antibacterial coating may be formed of various materials, for example, essential oils or other materials.
the inflow opening is surrounded by nonwoven material on which the holding plate is fixed, and a ring of nonwoven material forms a seal for a nozzle which can be inserted into the inflow opening.
a ring of nonwoven material forms a seal for a nozzle which can be inserted into the inflow opening.
the ring of nonwoven material may also form a filter surface, which may also be embossed to improve the tightness of the seal so that it protrudes into the filter bag and thus rests against an inserted neck. As a result, a folding of the sealing ring is avoided.
the filter bag 1 comprises a substantially square bag body 2 which is welded to a peripheral edge 3 and forms a closed interior space between a layer of nonwoven fabric 4 and a layer of film 5.
a holding plate 6 is arranged, which surrounds an inflow opening 10.
a sliding closure plate 7 is provided, which can be moved along guides 8 on the holding plate 6 to cover the inflow opening 10.
a handle portion 9 is formed on the closure plate 7.
a ring 11 made of nonwoven material is formed, which can be arranged as a sealing ring around a nozzle, which is inserted into the inflow opening 10.
the ring 11 may also be embossed to ensure a particularly good seal around the nozzle.
the film 5 is made of an air-impermeable material and is transparent. As a result, the user can detect the level at any time when removing the filter bag 1 and optionally also search the filter bag 1 for sucked valuables.
the nonwoven fabric 4 is multi-layered, preferably made of spunbond and meltblown.
these materials may be arranged such that a layer of spunbond surrounds one or more layers of meltblow on both sides.
spunbond and meltblown may be arranged alternately, it also being possible for three to five layers to be provided instead of two layers.
the film 5 is arranged over its entire surface on the side opposite to the inflow opening 10 and thus forms an impact protection. It is of course possible to reduce the size of the film 5, in particular to a region opposite the inflow opening 10 in order to make a larger area of the filter bag 1 permeable to air.
the film 5 may also be arranged in strips on the bag. Furthermore, it is also possible to surround the area with the retaining plate 6 with foil and to form the opposite layer of nonwoven fabric, so that the filter area is slightly enlarged compared with the exemplary embodiment shown.
the air-permeable filter material 4 is a non-woven fabric consisting of a pre-filter fleece, a coarse dust accumulator, a fine filter and a stabilizing layer.
the pre-filter retains coarse dirt> 1mm, has an air permeability of> 10001 / m2 x s, a thickness ⁇ 0.5 mm and a basis weight between 15-100 g / m2.
the pre-filter preferably consists of a spunbonded nonwoven, a scrim, or a perforated or slit film.
the coarse dust accumulator stores coarse dirt ⁇ 1mm, has an air permeability of> 10001 / m2 x s, a thickness of 0.5 - 5 mm, preferably 1 - 2 mm and a basis weight between 20 - 100 g / sqm.
the coarse dust storage preferably consists of a dry or wet-laid nonwoven, which may be solidified by needling or jetting, by adhesive powder or Bicomponetentmaschinen or other conventional solidification process.
the coarse dust accumulator may have a fiber gradient both in terms of the fiber diameter (increasing fiber diameter towards the upstream side) and the fiber density (increasing fiber density towards the downstream side).
the gradient can also be formed by a plurality of successive nonwoven layers having just mentioned properties. Also suitable is an open-cell foam.
the fine filter retains fine dirt> 0.0001 mm, and has an air permeability of> 2001 / m2 x s, a thickness ⁇ 0.5 mm and a basis weight between 15 - 80 g / sqm.
the fine filter preferably consists of a spunbonded nonwoven, a meltblown or a spunbonded meltblown combination such as SM, SMS, SMMS, SMSMS, etc.
the stabilizing layer has an air permeability of> 5001 / sqm xs, a thickness ⁇ 1 mm and a basis weight between 15-100 g / qm and is preferably made of a spunbonded fabric, a Gittergelege or a perforated or slotted film.
an additional ultrafine filter layer in the form of a layer of nanofibers with a fiber diameter of 10-2000 nm.
the nanofiber layer retains fine dirt and has an air permeability of> 5001 / m2 x s, a thickness ⁇ 0.1 mm and a basis weight between 0.01 - 2 g / m2.
the nanofiber layer is directly on the fine filter layer, e.g. filed a meltdown.
both a layer of nanofibers on the downstream side is conceivable, as well as a layer on the upstream side, as well as to increase the filter performance both on the arrival and on the upstream side.
the lower half of bag A consists of a transparent plastic film, while the upper half consists of a 3-layer air filter medium of 30 gsm spunbond, 50 gsm meltblown and 30 gsm spunbond.
Bag B has a continuous, 15 cm wide strip of transparent plastic film on top of the bag.
the remaining part of the bag consists of a 3-layer air filter medium, consisting of 50 g / m 2 nonwoven with a thickness of 1 - 2 mm, 25 g / m 2 Meltblow and 30 g / m 2 Spunbond as outer layer.
the lower half of bag C consists of a transparent plastic film, while the upper half as in Example B of a 3-layer air filter medium consisting of 50 g / m2 nonwoven with a thickness of 1 - 2 mm, 25 g / m2 meltblown and 30 g / sqm spunbond is formed as an outer layer.
Bag D is a standard paper bag.
test results with these four bags are shown in the following table: DMT type 8 test dust weight Max. Volume flow in m 3 / h A B C D SMS and slide Bag with foil strips Foil bag, bottom foil paper bag 0 159.0 158.9 160.1 160.0 50 112.0 135.5 133.2 125.0 100 92.0 125.0 113.7 112.0 150 80.5 115.0 99.0 105.0 200 70.0 105.0 88.0 95.0 250 59.0 98.0 82.0 91.0 300 48.0 93.0 78.0 88.0
the bags B and C can hold a paper bag D in the filter performance, although the area available for filtering is significantly lower for the bags B and C than for the paper bag D.
the choice of a suitable nonwoven fabric for the filter bag is thus crucial for achieving the same filter effect despite the smaller filter surface.

Landscapes

Engineering & Computer Science (AREA)
Mechanical Engineering (AREA)
Filtering Materials (AREA)
Filtering Of Dispersed Particles In Gases (AREA)

EP06113505A 2005-05-12 2006-05-04 Sac à poussières Not-in-force EP1721555B1 (fr)

Priority Applications (1)

Application Number	Priority Date	Filing Date	Title
PL06113505T PL1721555T3 (pl)	2005-05-12	2006-05-04	Worek filtracyjny

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DE202005007503U DE202005007503U1 (de)	2005-05-12	2005-05-12	Filterbeutel

Publications (2)

Publication Number	Publication Date
EP1721555A1 true EP1721555A1 (fr)	2006-11-15
EP1721555B1 EP1721555B1 (fr)	2012-11-14

Family

ID=36888921

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP06113505A Not-in-force EP1721555B1 (fr)	2005-05-12	2006-05-04	Sac à poussières

Country Status (4)

Country	Link
EP (1)	EP1721555B1 (fr)
DE (1)	DE202005007503U1 (fr)
DK (1)	DK1721555T3 (fr)
PL (1)	PL1721555T3 (fr)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP1795248A3 (fr) *	2005-12-06	2008-03-12	MELITTA HAUSHALTSPRODUKTE GmbH & Co. Kommanditgesellschaft	Matière filtrante et sac d'aspirateur
US8449639B2 (en)	2007-08-17	2013-05-28	Eurofilters Holding N.V.	Vacuum cleaner filter bag
US8608817B2 (en)	2007-11-09	2013-12-17	Hollingsworth & Vose Company	Meltblown filter medium
US8679218B2 (en)	2010-04-27	2014-03-25	Hollingsworth & Vose Company	Filter media with a multi-layer structure
US8950587B2 (en)	2009-04-03	2015-02-10	Hollingsworth & Vose Company	Filter media suitable for hydraulic applications
US8986432B2 (en)	2007-11-09	2015-03-24	Hollingsworth & Vose Company	Meltblown filter medium, related applications and uses
EP3066968A1 (fr)	2015-03-10	2016-09-14	Miele & Cie. KG	Sac d'aspirateur avec plaque de support
US9694306B2 (en)	2013-05-24	2017-07-04	Hollingsworth & Vose Company	Filter media including polymer compositions and blends
US10155186B2 (en)	2010-12-17	2018-12-18	Hollingsworth & Vose Company	Fine fiber filter media and processes
US10343095B2 (en)	2014-12-19	2019-07-09	Hollingsworth & Vose Company	Filter media comprising a pre-filter layer
US10653986B2 (en)	2010-12-17	2020-05-19	Hollingsworth & Vose Company	Fine fiber filter media and processes
CN113877317A (zh) *	2021-10-18	2022-01-04	嘉兴市小田环保科技有限公司	一种立体方形过滤袋及其制备方法
EP3560402B1 (fr)	2018-04-27	2022-12-07	Eurofilters Holding N.V.	Élément filtrant d'aspirateur sous pourvu de feuille dans la zone de la plaque de retenue
US12042117B2 (en)	2018-02-23	2024-07-23	Eurofilters Holding N.V.	Retainer plate with a seal element
US12420221B2 (en)	2016-07-01	2025-09-23	Hollingsworth & Vose Company	Multi-layered electret-containing filtration media

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE202009002970U1 (de) *	2008-07-02	2009-11-19	Branofilter Gmbh	Staubfilterbeutel mit Pralleinrichtung
DE202015101216U1 (de)	2015-03-10	2015-03-31	Branofilter Gmbh	Staubfilterbeutel für eine Staubsaugeinrichtung
DE202018102370U1 (de)	2018-04-27	2018-05-04	Eurofilters Holding N.V.	Staubsaugerfilterbeutel mit Folie im Bereich der Halteplatte
DE102019103908A1 (de) *	2019-02-15	2020-08-20	Wolf Pvg Gmbh & Co. Kommanditgesellschaft	Staubsaugerbeutel und Staubsauger

Citations (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB766086A (en) *	1954-04-22	1957-01-16	Lewyt Corp	Improvements in or relating to vacuum cleaners
US3973936A (en) *	1975-01-28	1976-08-10	Sol Howard	Horseshoe-shaped vacuum cleaner filter bag
DE9110724U1 (de) *	1991-08-27	1991-11-07	Schatzek, Ruth, 1000 Berlin	Wiederverschließbarer Staubbeutel für Staubsauger
US6156086A (en) *	1999-03-22	2000-12-05	3M Innovative Properties Company	Dual media vacuum filter bag
DE10224561A1 (de) *	2002-06-03	2003-12-11	Vorwerk Co Interholding	Filterbautel für einen Staubsauger, sowie Staubsauger, insbesondere Haushalts-Staubsauger
US20040211160A1 (en) *	2002-05-16	2004-10-28	Branofilter Gmbh	Multi-layer filter structure and use of a multi-layer filter structure

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE9011984U1 (de) *	1990-08-20	1990-11-29	Kucharz, Jörg, O-8705 Ebersbach	Filterbeutel für Staubsauger
DE4407229C2 (de) *	1994-03-04	1997-03-27	Schoettle Kg Electrostar	Auffangsack für eine Absaugeinrichtung
IL139539A0 (en) *	1998-05-11	2004-02-08	Airflo Europe Nv	Vacuum cleaner bag and improved vacuum cleaner bag
DE19919809C2 (de) *	1999-04-30	2003-02-06	Fibermark Gessner Gmbh & Co	Staubfilterbeutel, enthaltend Nanofaservlies

2005
- 2005-05-12 DE DE202005007503U patent/DE202005007503U1/de not_active Expired - Lifetime
2006
- 2006-05-04 PL PL06113505T patent/PL1721555T3/pl unknown
- 2006-05-04 DK DK06113505.9T patent/DK1721555T3/da active
- 2006-05-04 EP EP06113505A patent/EP1721555B1/fr not_active Not-in-force

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB766086A (en) *	1954-04-22	1957-01-16	Lewyt Corp	Improvements in or relating to vacuum cleaners
US3973936A (en) *	1975-01-28	1976-08-10	Sol Howard	Horseshoe-shaped vacuum cleaner filter bag
DE9110724U1 (de) *	1991-08-27	1991-11-07	Schatzek, Ruth, 1000 Berlin	Wiederverschließbarer Staubbeutel für Staubsauger
US6156086A (en) *	1999-03-22	2000-12-05	3M Innovative Properties Company	Dual media vacuum filter bag
US20040211160A1 (en) *	2002-05-16	2004-10-28	Branofilter Gmbh	Multi-layer filter structure and use of a multi-layer filter structure
DE10224561A1 (de) *	2002-06-03	2003-12-11	Vorwerk Co Interholding	Filterbautel für einen Staubsauger, sowie Staubsauger, insbesondere Haushalts-Staubsauger

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP1795248A3 (fr) *	2005-12-06	2008-03-12	MELITTA HAUSHALTSPRODUKTE GmbH & Co. Kommanditgesellschaft	Matière filtrante et sac d'aspirateur
US8449639B2 (en)	2007-08-17	2013-05-28	Eurofilters Holding N.V.	Vacuum cleaner filter bag
US8608817B2 (en)	2007-11-09	2013-12-17	Hollingsworth & Vose Company	Meltblown filter medium
US8986432B2 (en)	2007-11-09	2015-03-24	Hollingsworth & Vose Company	Meltblown filter medium, related applications and uses
US8950587B2 (en)	2009-04-03	2015-02-10	Hollingsworth & Vose Company	Filter media suitable for hydraulic applications
US10682595B2 (en)	2009-04-03	2020-06-16	Hollingsworth & Vose Company	Filter media suitable for hydraulic applications
US9950284B2 (en)	2009-04-03	2018-04-24	Hollingsworth & Vose Company	Filter media suitable for hydraulic applications
US10155187B2 (en)	2010-04-27	2018-12-18	Hollingsworth & Vose Company	Filter media with a multi-layer structure
US8679218B2 (en)	2010-04-27	2014-03-25	Hollingsworth & Vose Company	Filter media with a multi-layer structure
US9283501B2 (en)	2010-04-27	2016-03-15	Hollingsworth & Vose Company	Filter media with a multi-layer structure
US11458427B2 (en)	2010-12-17	2022-10-04	Hollingsworth & Vose Company	Fine fiber filter media and processes
US10874962B2 (en)	2010-12-17	2020-12-29	Hollingsworth & Vose Company	Fine fiber filter media and processes
US10155186B2 (en)	2010-12-17	2018-12-18	Hollingsworth & Vose Company	Fine fiber filter media and processes
US10653986B2 (en)	2010-12-17	2020-05-19	Hollingsworth & Vose Company	Fine fiber filter media and processes
US9694306B2 (en)	2013-05-24	2017-07-04	Hollingsworth & Vose Company	Filter media including polymer compositions and blends
US11684885B2 (en)	2014-12-19	2023-06-27	Hollingsworth & Vose Company	Filter media comprising a pre-filter layer
US11167232B2 (en)	2014-12-19	2021-11-09	Hollingsworth & Vose Company	Filter media comprising a pre-filter layer
US10343095B2 (en)	2014-12-19	2019-07-09	Hollingsworth & Vose Company	Filter media comprising a pre-filter layer
US12011686B2 (en)	2014-12-19	2024-06-18	Hollingsworth & Vose Company	Filter media comprising a pre-filter layer
US12274968B2 (en)	2014-12-19	2025-04-15	Hollingsworth & Vose Company	Filter media comprising a pre-filter layer
EP3066968A1 (fr)	2015-03-10	2016-09-14	Miele & Cie. KG	Sac d'aspirateur avec plaque de support
US12420221B2 (en)	2016-07-01	2025-09-23	Hollingsworth & Vose Company	Multi-layered electret-containing filtration media
US12042117B2 (en)	2018-02-23	2024-07-23	Eurofilters Holding N.V.	Retainer plate with a seal element
EP3560402B1 (fr)	2018-04-27	2022-12-07	Eurofilters Holding N.V.	Élément filtrant d'aspirateur sous pourvu de feuille dans la zone de la plaque de retenue
CN113877317A (zh) *	2021-10-18	2022-01-04	嘉兴市小田环保科技有限公司	一种立体方形过滤袋及其制备方法

Also Published As

Publication number	Publication date
DK1721555T3 (da)	2013-03-04
EP1721555B1 (fr)	2012-11-14
DE202005007503U1 (de)	2006-09-21
PL1721555T3 (pl)	2013-06-28

Publication	Publication Date	Title
EP1721555B1 (fr)	2012-11-14	Sac à poussières
EP2340098B1 (fr)	2016-11-30	Milieu filtrant pour une filtration de particules
EP1795248B1 (fr)	2016-10-12	Sac d'aspirateur
EP1915939B1 (fr)	2012-04-11	Sac filtrant
EP0893151B1 (fr)	2002-11-27	Sac filtrant à poussières
EP0974387B1 (fr)	2003-04-09	Sac filtrant à poussiéres
DE102007011365B4 (de)	2009-02-12	Lage zur Verwendung in einem HEPA-Filterelement sowie Filterelement
DE202008007717U1 (de)	2008-08-07	Filterbeutel
EP1982625A2 (fr)	2008-10-22	Sac filtrant pour un aspirateur
DE19544790C2 (de)	1998-11-26	Wegwerfstaubsaugerbeutel
EP1791617B1 (fr)	2009-05-27	Procede de production d'une couche filtrante et couche filtrante destinee en particulier a un sac filtre a poussiere d'un aspirateur
DE4143237A1 (de)	1993-07-01	Filterelement zum filtern von gasen und/oder fluessigkeiten, insbesondere zum filtern der in den fahrgastraum eines kraftfahrzeuges einstroemenden luft
DE10126425C5 (de)	2017-04-20	Filterbeutel
DE19520504C2 (de)	1999-08-19	Microfilter für mit Feuchtigkeit und/oder Öl beladene Gase
EP2510859B1 (fr)	2019-05-08	Sac d'aspirateur
DE102008031989A1 (de)	2010-01-07	Staubfilterbeutel mit geschlitztem Material zum Einsatz in einem Staubsauger
DE102008016956A1 (de)	2009-10-08	Staubsauger und Filterkörper für einen Staubsauger
DE202004019344U1 (de)	2005-03-03	Staubfilterbeutel
DE2733861A1 (de)	1979-02-08	Filteranordnung fuer einen staubsauger
DE202007005848U1 (de)	2008-08-21	Staubsaugerbeutel
DE19512353A1 (de)	1996-10-02	Selbsttragende, FCKW-freie Membrane als Filterelement zur Staubfiltration
DE29521461U1 (de)	1997-05-07	Microfilter für mit Feuchtigkeit und/oder Öl beladene Gase
DE202012103691U1 (de)	2012-10-16	Staubsaugerbeutel und Filtermaterial
DE20102191U1 (de)	2001-06-13	Filterbeutel

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