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WO1997030772A1 - Sac filtrant multicouche - Google Patents

Sac filtrant multicouche Download PDF

Info

Publication number
WO1997030772A1
WO1997030772A1 PCT/EP1997/000860 EP9700860W WO9730772A1 WO 1997030772 A1 WO1997030772 A1 WO 1997030772A1 EP 9700860 W EP9700860 W EP 9700860W WO 9730772 A1 WO9730772 A1 WO 9730772A1
Authority
WO
WIPO (PCT)
Prior art keywords
layer
filter
filter bag
air permeability
fleece
Prior art date
Application number
PCT/EP1997/000860
Other languages
German (de)
English (en)
Original Assignee
Vorwerk & Co. Interholding Gmbh
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 Vorwerk & Co. Interholding Gmbh filed Critical Vorwerk & Co. Interholding Gmbh
Priority to EP97903359A priority Critical patent/EP0822854A1/fr
Publication of WO1997030772A1 publication Critical patent/WO1997030772A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
    • B01D46/12—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces in multiple arrangements
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/14—Other self-supporting filtering material ; Other filtering material
    • B01D39/16—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
    • B01D39/1607—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous
    • B01D39/1623—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous of synthetic origin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/06—Filter cloth, e.g. knitted, woven non-woven; self-supported material
    • B01D2239/0604—Arrangement of the fibres in the filtering material
    • B01D2239/0622—Melt-blown
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/06—Filter cloth, e.g. knitted, woven non-woven; self-supported material
    • B01D2239/0604—Arrangement of the fibres in the filtering material
    • B01D2239/0627—Spun-bonded
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/06—Filter cloth, e.g. knitted, woven non-woven; self-supported material
    • B01D2239/065—More than one layer present in the filtering material

Definitions

  • the invention relates to a multi-layer filter bag
  • 00005 re a vacuum cleaner, with a first inner layer and
  • Such filter bags are known and are in particular
  • 00017 will be the largest first and then smaller and smaller
  • 00019 filter bag is, for example, in DE-PS 38 12 849 in detail
  • 00027 has a larger separation limit than fine-fiber nonwovens
  • 00035 based on the separation performance of the overall system, 00036 almost ineffective. Only in the function of one
  • 00038 contribute overall performance of the multilayer system. 00039
  • 00049 is that the second layer has a higher air flow
  • 00067 according to the second layer is made of a plastic
  • 00069 has permeability to the first layer.
  • the second layer serves as a pure support layer 00071 ge, with which the individual in such a system
  • 00072 lay on their primary function, such as effective filtration
  • 00081 is formed, always a lower air permeability
  • the first layer according to the invention is
  • 00095 second layer is a spun bond fleece. This after
  • 00098 also presented the first location to take over the filtration
  • the first layer is 00106 which, for example, a melt-blown fleece, a micro-glass fiber
  • 00125 is a paper material. It can be
  • 00128 education is provided that a fourth layer as an inner
  • 00131 fourth layer has a lower air permeability than that
  • the fourth layer is designed as a paper fleece.
  • 00140 is used for the retention of coarse dirt and for 00141 others to prevent the build-up of a filter
  • the filter can be opti-
  • 00159 te outer layer is designed as a pure support layer
  • 00161 is particularly characterized by a clear and
  • FIG. 1 shows a multilayer filter bag 00198 according to the invention with a filter bag and a holding plate 00199 for a vacuum cleaner; 00200 00201 Fig. 2 is a schematic representation of a cross-section 00202 through the filter bag to show the 00203 different layers connected in series.
  • 00204 00205 Shown and described is a filter bag 1, 00206 which has a filter bag 2, which in turn is 00207 arranged on the underside of a holding plate 3.
  • the 00208 holding plate 3 has an opening 4 for the passage 00209 of a suction nozzle or the like into the filter bag 1.
  • 00210 00211 The dirt and dust particles absorbed
  • Fig. 2 is the cross-section of the layered structure
  • First is a first layer A, which is a fine fiber
  • second layer B is the outer layer and is as pure
  • 00229 has a higher air permeability than the first layer
  • the first layer A consists of a fine fiber fleece.
  • micro glass fiber fleece 00237 micro glass fiber fleece, a porous plastic membrane or
  • This first layer A has filtering
  • This third layer C is also one
  • 00250 has air permeability than the first layer A.
  • This third layer C is a in the direction of flow L.
  • 00254 is a paper fleece with very high air
  • the fourth, innermost layer D has a lower air

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Filtering Materials (AREA)

Abstract

L'invention concerne un ensemble filtrant multicouche (1) comprenant un sac filtrant (2) et une plaque de fixation (3), en particulier pour aspirateur, présentant une première couche intérieure et une deuxième couche extérieure, la première couche étant réalisée sous la forme d'un non-tissé à fibres fines. En vue d'avoir un ensemble filtrant dont la structure est améliorée, tout en ayant une résistance mécanique suffisante, l'invention est caractérisée en ce que la deuxième couche présente une perméabilité à l'air plus élevée que la première couche, et en ce que la deuxième couche est formée d'une structure matière plastique-fibres enchevêtrées, stabilisée en vue d'absorber les contraintes mécaniques.
PCT/EP1997/000860 1996-02-23 1997-02-22 Sac filtrant multicouche WO1997030772A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP97903359A EP0822854A1 (fr) 1996-02-23 1997-02-22 Sac filtrant multicouche

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19606718.9 1996-02-23
DE1996106718 DE19606718A1 (de) 1996-02-23 1996-02-23 Mehrlagige Filtertüte

Publications (1)

Publication Number Publication Date
WO1997030772A1 true WO1997030772A1 (fr) 1997-08-28

Family

ID=7786173

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1997/000860 WO1997030772A1 (fr) 1996-02-23 1997-02-22 Sac filtrant multicouche

Country Status (3)

Country Link
EP (1) EP0822854A1 (fr)
DE (1) DE19606718A1 (fr)
WO (1) WO1997030772A1 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999058041A3 (fr) * 1998-05-11 1999-12-29 Airflo Europe Nv Sac d'aspirateur et sac d'aspirateur ameliore
DE19922326A1 (de) * 1999-05-14 2000-11-23 Mann & Hummel Filter Mehrlagiges Filtermedium
US6171369B1 (en) 1998-05-11 2001-01-09 Airflo Europe, N.V. Vacuum cleaner bag construction and method of operation
US6372004B1 (en) 1999-07-08 2002-04-16 Airflo Europe N.V. High efficiency depth filter and methods of forming the same
EP1199094A1 (fr) 2000-10-16 2002-04-24 FiberMark Gessner GmbH & Co. Sac filtrant à poussière avec couche support à porosité élevée
EP0893151B1 (fr) * 1997-07-24 2002-11-27 Carl Freudenberg KG Sac filtrant à poussières
US6576033B1 (en) 1998-11-30 2003-06-10 Pall Corporation Filter for use in medical procedures
US7094270B2 (en) 2001-03-02 2006-08-22 Airflo Europe N.V. Composite filter and method of making the same

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19820153C1 (de) * 1998-05-06 1999-12-02 Branofilter Gmbh Filtervorrichtung für schmutzsaugende Geräte
DE19832611C2 (de) 1998-07-21 2002-03-21 Freudenberg Carl Kg Staubfilterbeutel
DE20110838U1 (de) 2001-06-30 2001-08-23 Melitta Haushaltsprodukte GmbH & Co. KG, 32427 Minden Staubbeutel für einen Staubsauger
EP1350457A3 (fr) * 2002-03-25 2004-01-02 Vorwerk & Co. Interholding GmbH Aspirateur domestique avec sac à poussière et assortiment de sacs à poussière
DE20219771U1 (de) 2002-12-20 2003-03-13 Arwed Löseke Papierverarbeitung und Druckerei GmbH, 31135 Hildesheim Staubfilterbeutel für Staubsaugergeräte
DE202005019004U1 (de) * 2005-12-06 2007-04-19 Melitta Haushaltsprodukte Gmbh & Co. Kg Filtermaterial und Staubsaugerbeutel
DE102009006583A1 (de) * 2009-01-29 2010-06-17 Neenah Gessner Gmbh Mehrlagiges Filtermaterial für die Flüssigkeitsfiltration

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4589894A (en) * 1984-04-11 1986-05-20 Minnesota Mining And Manufacturing Co. Disposable filter for a vacuum cleaner
DE3905565A1 (de) * 1989-02-23 1989-07-13 Branofilter Gmbh Filtersack
EP0375234A1 (fr) * 1988-12-22 1990-06-27 Minnesota Mining And Manufacturing Company Matériau de filtration non tissé
EP0564799A2 (fr) * 1992-04-10 1993-10-13 Christian Heinrich Sandler GmbH & Co. KG Matériau filtrant multicouche
WO1995017946A1 (fr) * 1993-12-31 1995-07-06 Corovin Gmbh Matiere filtrante multicouche

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4589894A (en) * 1984-04-11 1986-05-20 Minnesota Mining And Manufacturing Co. Disposable filter for a vacuum cleaner
EP0375234A1 (fr) * 1988-12-22 1990-06-27 Minnesota Mining And Manufacturing Company Matériau de filtration non tissé
DE3905565A1 (de) * 1989-02-23 1989-07-13 Branofilter Gmbh Filtersack
EP0564799A2 (fr) * 1992-04-10 1993-10-13 Christian Heinrich Sandler GmbH & Co. KG Matériau filtrant multicouche
WO1995017946A1 (fr) * 1993-12-31 1995-07-06 Corovin Gmbh Matiere filtrante multicouche

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0893151B1 (fr) * 1997-07-24 2002-11-27 Carl Freudenberg KG Sac filtrant à poussières
US6183536B1 (en) 1998-05-11 2001-02-06 Airflo Europe, N.V. Enhanced performance vacuum cleaner bag and method of operation
EP0960645A3 (fr) * 1998-05-11 2000-02-02 Airflo Europe N.V. Sac à poussières pour aspirateur ou filtre, et procédé de filtration des gaz
US6171369B1 (en) 1998-05-11 2001-01-09 Airflo Europe, N.V. Vacuum cleaner bag construction and method of operation
WO1999058041A3 (fr) * 1998-05-11 1999-12-29 Airflo Europe Nv Sac d'aspirateur et sac d'aspirateur ameliore
KR100508678B1 (ko) * 1998-05-11 2005-08-17 에어플로 유럽 엔.브이. 진공 청소기용 집진백 및 여과기
AU753631B2 (en) * 1998-05-11 2002-10-24 Airflo Europe N.V. Vacuum cleaner bag and improved vacuum cleaner bag
US6576033B1 (en) 1998-11-30 2003-06-10 Pall Corporation Filter for use in medical procedures
US6746504B2 (en) 1998-11-30 2004-06-08 Pall Corporation Filter for use in medical procedures
DE19922326A1 (de) * 1999-05-14 2000-11-23 Mann & Hummel Filter Mehrlagiges Filtermedium
DE19922326B4 (de) * 1999-05-14 2004-02-19 Mann + Hummel Gmbh Mehrlagiges Filtermedium
US6372004B1 (en) 1999-07-08 2002-04-16 Airflo Europe N.V. High efficiency depth filter and methods of forming the same
US6706086B2 (en) 2000-10-16 2004-03-16 Fibermark Gressner Gmbh & Co. Kg Dust filter bag including a highly porous backing material ply
DE10051186B4 (de) * 2000-10-16 2005-04-07 Fibermark Gessner Gmbh & Co. Ohg Staubfilterbeutel mit hochporöser Trägermateriallage
EP1199094A1 (fr) 2000-10-16 2002-04-24 FiberMark Gessner GmbH & Co. Sac filtrant à poussière avec couche support à porosité élevée
US7094270B2 (en) 2001-03-02 2006-08-22 Airflo Europe N.V. Composite filter and method of making the same

Also Published As

Publication number Publication date
DE19606718A1 (de) 1997-08-28
EP0822854A1 (fr) 1998-02-11

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