DE68916392T2 - Nichtgewebtes Filtermaterial. - Google Patents

Nichtgewebtes Filtermaterial.

Info

Publication number
DE68916392T2
DE68916392T2 DE68916392T DE68916392T DE68916392T2 DE 68916392 T2 DE68916392 T2 DE 68916392T2 DE 68916392 T DE68916392 T DE 68916392T DE 68916392 T DE68916392 T DE 68916392T DE 68916392 T2 DE68916392 T2 DE 68916392T2
Authority
DE
Germany
Prior art keywords
filter material
woven filter
woven
filter
Prior art date
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.)
Revoked
Application number
DE68916392T
Other languages
English (en)
Other versions
DE68916392D1 (de
Inventor
John C C O Minnesota M Winters
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.)
3M Co
Original Assignee
Minnesota Mining and Manufacturing Co
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=23106520&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE68916392(T2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Minnesota Mining and Manufacturing Co filed Critical Minnesota Mining and Manufacturing Co
Application granted granted Critical
Publication of DE68916392D1 publication Critical patent/DE68916392D1/de
Publication of DE68916392T2 publication Critical patent/DE68916392T2/de
Anticipated expiration legal-status Critical
Revoked legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
    • 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
    • B01D39/08—Filter cloth, i.e. woven, knitted or interlaced material
    • 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
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
    • B03C3/28—Plant or installations without electricity supply, e.g. using electrets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/022—Non-woven fabric
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/54—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/54—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
    • D04H1/559—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving the fibres being within layered webs
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/54—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
    • D04H1/56—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving in association with fibre formation, e.g. immediately following extrusion of staple fibres
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
    • D04H3/14—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding
    • 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
    • B01D2239/04—Additives and treatments of the filtering material
    • B01D2239/0435—Electret
    • 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
    • B01D2239/12—Special parameters characterising the filtering material
    • B01D2239/1233—Fibre diameter
    • 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
    • B01D2239/12—Special parameters characterising the filtering material
    • B01D2239/1258—Permeability
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02—Synthetic macromolecular fibres
    • B32B2262/0253—Polyolefin fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2509/00—Household appliances
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S428/00—Stock material or miscellaneous articles
    • Y10S428/903—Microfiber, less than 100 micron diameter
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S55/00—Gas separation
    • Y10S55/39—Electrets separator
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
    • Y10T442/608—Including strand or fiber material which is of specific structural definition
    • Y10T442/614—Strand or fiber material specified as having microdimensions [i.e., microfiber]
    • Y10T442/621—Including other strand or fiber material in a different layer not specified as having microdimensions
DE68916392T 1988-12-22 1989-12-11 Nichtgewebtes Filtermaterial. Revoked DE68916392T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/288,294 US4917942A (en) 1988-12-22 1988-12-22 Nonwoven filter material

Publications (2)

Publication Number Publication Date
DE68916392D1 DE68916392D1 (de) 1994-07-28
DE68916392T2 true DE68916392T2 (de) 1995-01-26

Family

ID=23106520

Family Applications (1)

Application Number Title Priority Date Filing Date
DE68916392T Revoked DE68916392T2 (de) 1988-12-22 1989-12-11 Nichtgewebtes Filtermaterial.

Country Status (6)

Country Link
US (1) US4917942A (de)
EP (1) EP0375234B1 (de)
JP (1) JPH0732753B2 (de)
CA (1) CA2004048C (de)
DE (1) DE68916392T2 (de)
ES (1) ES2055106T3 (de)

Families Citing this family (127)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0627361B2 (ja) * 1988-01-06 1994-04-13 東レ株式会社 自己付着性を持つエプロン
US5540756A (en) * 1990-03-19 1996-07-30 Hoppitt; Bernard Electrostatic filter and method of filtering dust
US5090975A (en) * 1990-09-21 1992-02-25 The Drackett Company High efficiency vacuum cleaner bags
JPH05214A (ja) * 1990-11-30 1993-01-08 Mitsui Petrochem Ind Ltd エレクトレツトフイルター
US5306534A (en) * 1991-03-22 1994-04-26 Home Care Industries, Inc. Vacuum cleaner bag with electrostatically charged meltblown layer
JPH04313313A (ja) * 1991-04-12 1992-11-05 Mitsubishi Paper Mills Ltd 液体濾過用フィルター濾材
DE4143237A1 (de) * 1991-12-31 1993-07-01 Minnesota Mining & Mfg Filterelement zum filtern von gasen und/oder fluessigkeiten, insbesondere zum filtern der in den fahrgastraum eines kraftfahrzeuges einstroemenden luft
US5443606A (en) * 1992-03-26 1995-08-22 The University Of Tennessee Reserch Corporation Post-treatment of laminated nonwoven cellulosic fiber webs
US5441550A (en) * 1992-03-26 1995-08-15 The University Of Tennessee Research Corporation Post-treatment of laminated nonwoven cellulosic fiber webs
US5244482A (en) * 1992-03-26 1993-09-14 The University Of Tennessee Research Corporation Post-treatment of nonwoven webs
USRE35206E (en) * 1992-03-26 1996-04-16 The University Of Tennessee Research Corporation Post-treatment of nonwoven webs
DE4212112A1 (de) * 1992-04-10 1993-10-14 Sandler C H Gmbh Mehrschichtiges Filtermaterial
DE4214990A1 (de) * 1992-05-06 1993-11-11 Minnesota Mining & Mfg Staubsaugerbeutel und Verfahren zu seiner Herstellung
US6251154B1 (en) 1992-05-06 2001-06-26 3M Innovative Properties Company Dust bag and method of production
US5230727A (en) * 1992-06-05 1993-07-27 Cybermedic, Inc. Air filter for medical ventilation equipment and the like
US5306321A (en) * 1992-07-07 1994-04-26 Donaldson Company, Inc. Layered air filter medium having improved efficiency and pleatability
US5427597A (en) * 1992-07-07 1995-06-27 Donaldson Company, Inc. Layered air filter medium having improved efficiency and pleatability
JP2849291B2 (ja) * 1992-10-19 1999-01-20 三井化学株式会社 エレクトレット化不織布およびその製造方法
KR100323320B1 (ko) * 1993-05-26 2002-06-20 고토 기치 여과재및이의제조방법
KR100336012B1 (ko) * 1993-08-17 2002-10-11 미네소타 마이닝 앤드 매뉴팩춰링 캄파니 일렉트릿필터매체를하전시키는방법
DE9318405U1 (de) * 1993-12-01 1994-01-27 Schoeller & Hoesch Papierfab Filtermaterial
DE9320208U1 (de) * 1993-12-31 1994-03-31 Kalthoff Luftfilter Und Filter Mehrschichtiges Filtermaterial
CA2124237C (en) 1994-02-18 2004-11-02 Bernard Cohen Improved nonwoven barrier and method of making the same
US5607491A (en) * 1994-05-04 1997-03-04 Jackson; Fred L. Air filtration media
US5480466A (en) * 1994-05-04 1996-01-02 Schuller International, Inc. Air filtration media
US5582632A (en) * 1994-05-11 1996-12-10 Kimberly-Clark Corporation Corona-assisted electrostatic filtration apparatus and method
CA2136576C (en) 1994-06-27 2005-03-08 Bernard Cohen Improved nonwoven barrier and method of making the same
US5525136A (en) * 1994-09-06 1996-06-11 Rosen; Richard M. Gasketed multi-media air cleaner
AU697204B2 (en) * 1994-10-31 1998-10-01 Kimberly-Clark Worldwide, Inc. High density nonwoven filter media
AU4961696A (en) 1994-12-08 1996-06-26 Kimberly-Clark Worldwide, Inc. Method of forming a particle size gradient in an absorbent article
CA2153278A1 (en) 1994-12-30 1996-07-01 Bernard Cohen Nonwoven laminate barrier material
US5593479A (en) * 1995-02-02 1997-01-14 Hmi Industries, Inc. Filter system
US5647881A (en) * 1995-04-20 1997-07-15 Minnesota Mining And Manufacturing Company Shock resistant high efficiency vacuum cleaner filter bag
GB9510234D0 (en) * 1995-05-20 1995-07-19 Advanced Allergy Technologies Allergen particle exclusion and/or retention covering
AU5747396A (en) * 1995-05-25 1996-12-11 Kimberly-Clark Worldwide, Inc. Filter matrix
DE29509282U1 (de) * 1995-06-06 1996-10-10 Vivelle Gmbh Vorrichtung zum Filtern von Feststoffen aus wäßrigen und nicht-wäßrigen Systemen
ZA965786B (en) 1995-07-19 1997-01-27 Kimberly Clark Co Nonwoven barrier and method of making the same
US5834384A (en) 1995-11-28 1998-11-10 Kimberly-Clark Worldwide, Inc. Nonwoven webs with one or more surface treatments
US5721180A (en) * 1995-12-22 1998-02-24 Pike; Richard Daniel Laminate filter media
DE19606718A1 (de) * 1996-02-23 1997-08-28 Vorwerk Co Interholding Mehrlagige Filtertüte
US5667562A (en) * 1996-04-19 1997-09-16 Kimberly-Clark Worldwide, Inc. Spunbond vacuum cleaner webs
US6211100B1 (en) * 1996-04-30 2001-04-03 Minnesota Mining And Manufacturing Company Synthetic filter media
US5898981A (en) * 1996-04-30 1999-05-04 Minnesota Mining & Manufacturing Company Synthetic filter media and method for manufacturing same
US6162535A (en) 1996-05-24 2000-12-19 Kimberly-Clark Worldwide, Inc. Ferroelectric fibers and applications therefor
US5672188A (en) * 1996-05-28 1997-09-30 Aaf International High capacity filter media
FR2750314B1 (fr) * 1996-06-26 1998-10-16 Laplace Xavier Filtre a poussieres pour aspirateur et aspirateur ainsi equipe
DE19628184A1 (de) * 1996-07-12 1998-01-15 Irema Filter Gmbh Partikelfilter in Form eines plissierten schichtförmigen Vliesmaterials
US5733351A (en) * 1996-08-12 1998-03-31 Emerson Electric Co. Two stage vacuum cleaner filter
JPH1057728A (ja) * 1996-08-13 1998-03-03 Shinon Denki Sangyo Kk 除塵埃用マット
US5874373A (en) * 1997-03-14 1999-02-23 American Felt & Filter Company Enhanced electret needled filtration media and composites
DE19731860C1 (de) * 1997-07-24 1999-01-28 Freudenberg Carl Fa Staubfilterbeutel
US6537932B1 (en) 1997-10-31 2003-03-25 Kimberly-Clark Worldwide, Inc. Sterilization wrap, applications therefor, and method of sterilizing
US6090184A (en) 1998-02-27 2000-07-18 Hmi Industries, Inc. Filter system
US6171369B1 (en) 1998-05-11 2001-01-09 Airflo Europe, N.V. Vacuum cleaner bag construction and method of operation
US6365088B1 (en) 1998-06-26 2002-04-02 Kimberly-Clark Worldwide, Inc. Electret treatment of high loft and low density nonwoven webs
US6759356B1 (en) 1998-06-30 2004-07-06 Kimberly-Clark Worldwide, Inc. Fibrous electret polymeric articles
DE19832611C2 (de) * 1998-07-21 2002-03-21 Freudenberg Carl Kg Staubfilterbeutel
US6099609A (en) * 1998-07-30 2000-08-08 3M Innovative Properties Company Moving sorbent filter device
US6099608A (en) * 1998-07-30 2000-08-08 3M Innovative Properties Company Rotating filtration cartridge and blower for HVAC applications
US6277176B1 (en) 1998-07-30 2001-08-21 3M Innovative Properties Company Moving filter device having filter elements with flow passages and method of filtering air
DE19845526C5 (de) 1998-10-02 2016-10-20 Mann+Hummel Innenraumfilter Gmbh & Co. Kg Filtermaterial für fluide Medien sowie Verfahren zur Herstellung eines solchen Filtermaterials
US6573205B1 (en) * 1999-01-30 2003-06-03 Kimberly-Clark Worldwide, Inc. Stable electret polymeric articles
US6231646B1 (en) * 1999-03-11 2001-05-15 Chemco Manufacturing Company, Inc. Paint overspray exhaust air filter
US6156086A (en) * 1999-03-22 2000-12-05 3M Innovative Properties Company Dual media vacuum filter bag
DE19919809C2 (de) * 1999-04-30 2003-02-06 Fibermark Gessner Gmbh & Co Staubfilterbeutel, enthaltend Nanofaservlies
US6372004B1 (en) 1999-07-08 2002-04-16 Airflo Europe N.V. High efficiency depth filter and methods of forming the same
US6322604B1 (en) 1999-07-22 2001-11-27 Kimberly-Clark Worldwide, Inc Filtration media and articles incorporating the same
US6494921B1 (en) 2000-02-10 2002-12-17 M. Catherine Bennett Method of removing particulate debris, especially dust mite fecal material from fabric articles in a conventional clothes dryer
WO2001060496A1 (en) * 2000-02-15 2001-08-23 Hollingsworth & Vose Company Melt blown composite hepa filter media and vacuum bag
US6616722B1 (en) 2000-05-09 2003-09-09 Hmi Industries, Inc. Room air cleaner
US6513184B1 (en) 2000-06-28 2003-02-04 S. C. Johnson & Son, Inc. Particle entrapment system
US7687416B2 (en) 2000-08-09 2010-03-30 Aaf-Mcquay Inc. Arrangement for forming a layered fibrous mat of varied porosity
US6649547B1 (en) 2000-08-31 2003-11-18 Kimberly-Clark Worldwide, Inc. Integrated nonwoven laminate material
US7115150B2 (en) * 2000-09-05 2006-10-03 Donaldson Company, Inc. Mist filtration arrangement utilizing fine fiber layer in contact with media having a pleated construction and floor filter method
US6743273B2 (en) 2000-09-05 2004-06-01 Donaldson Company, Inc. Polymer, polymer microfiber, polymer nanofiber and applications including filter structures
US6746517B2 (en) * 2000-09-05 2004-06-08 Donaldson Company, Inc. Filter structure with two or more layers of fine fiber having extended useful service life
US7270693B2 (en) * 2000-09-05 2007-09-18 Donaldson Company, Inc. Polymer, polymer microfiber, polymer nanofiber and applications including filter structures
US6596112B1 (en) * 2000-10-20 2003-07-22 Pall Corporation Laminates of asymmetric membranes
JP2004529753A (ja) * 2000-11-14 2004-09-30 リダル、インコーポレイテッド エアレイド／ウエットレイドガスろ過媒体
DE10059050C2 (de) * 2000-11-28 2003-02-27 Freudenberg Carl Kg Verfahren zur Herstellung eines triboelektrisch geladenen Vliesstoffs
US6511531B1 (en) 2001-01-26 2003-01-28 Hmi Industries, Inc. Room air filtering and freshening device
DK1236494T3 (da) * 2001-03-02 2004-02-16 Airflo Europ N V Kompositfilter og fremgangsmåde til fremstilling af samme
US6488744B2 (en) 2001-03-19 2002-12-03 Hmi Industries, Inc. Filter system
WO2002089956A1 (en) * 2001-05-02 2002-11-14 Hollingsworth & Vose Company Filter media with enhanced stiffness and increased dust holding capacity
RU2300543C2 (ru) * 2001-05-31 2007-06-10 Дональдсон Компани, Инк. Составы тонкого волокна, способы их получения, способ изготовления тонковолокнистого материала
KR100435254B1 (ko) * 2001-08-02 2004-06-11 한국바이린주식회사 집진기용 필터여재 및 그 제조방법
WO2003018170A1 (en) * 2001-08-22 2003-03-06 Parker-Hannifin Corporation High capacity depth filter bag
US20050160711A1 (en) * 2004-01-28 2005-07-28 Alain Yang Air filtration media
US7815967B2 (en) * 2001-09-06 2010-10-19 Alain Yang Continuous process for duct liner production with air laid process and on-line coating
US20030145566A1 (en) * 2002-02-04 2003-08-07 Parks David P. Disposable filtration bag
US7018438B2 (en) 2002-03-29 2006-03-28 Hmi Industries, Inc. Filtering system
US20030203696A1 (en) * 2002-04-30 2003-10-30 Healey David Thomas High efficiency ashrae filter media
KR100712258B1 (ko) * 2002-06-07 2007-04-27 구레하 테크 가부시키가이샤 필터용 부직포 및 엔진용 필터
KR20110055576A (ko) * 2002-09-16 2011-05-25 트리오신 홀딩 아이엔씨 활성화제가 혼입된 정전기적으로 하전된 필터 매질
JP2004125200A (ja) * 2002-09-30 2004-04-22 Sanyo Electric Co Ltd 冷媒回収装置およびそれを用いた冷媒回収方法
US7097684B2 (en) * 2002-12-12 2006-08-29 Aaf-Mcquay, Inc. Method of forming combined pleated scrim and filter media materials and product of same
US20040247819A1 (en) * 2003-06-09 2004-12-09 3M Innovative Properties Company Casing-free insulation blanket
EP2437519A1 (de) * 2003-07-22 2012-04-04 Toho Kasei Co., Ltd. Material für ein wärmebestandiges Elektret und wärmebestandiges Elektret
US7097694B1 (en) 2003-12-04 2006-08-29 Fleetguard, Inc. High performance, high efficiency filter
DE102006048076A1 (de) * 2006-10-09 2008-04-10 Mann + Hummel Gmbh Filtereinrichtung, insbesondere zur Filtration von Verbrennungsluft in Brennkraftmaschinen
DE102004020555B4 (de) * 2004-04-27 2006-09-21 Fibermark Gessner Gmbh & Co. Staubfilterbeutel, enthaltend Schaumstofflage
US7896940B2 (en) * 2004-07-09 2011-03-01 3M Innovative Properties Company Self-supporting pleated filter media
US20060057351A1 (en) * 2004-09-10 2006-03-16 Alain Yang Method for curing a binder on insulation fibers
US7771517B2 (en) * 2007-05-14 2010-08-10 Global Finishing Solutions, L.L.C. Filtering method
ES2325775T3 (es) * 2007-08-17 2009-09-16 Eurofilters Holding N.V. Bolsa de filtro de aspiradora.
US8070862B2 (en) * 2007-09-04 2011-12-06 3M Innovative Properties Company Dust collection device for sanding tool
US8056752B2 (en) * 2007-09-12 2011-11-15 Carnevali Jeffrey D Dripless lid for beverage container
MX345079B (es) * 2007-12-27 2017-01-16 3M Innovative Properties Co Dispositivo de recolección de polvo para herramienta de esmerilar.
US9510718B2 (en) 2008-07-04 2016-12-06 Emerson Electric Co. Wet/dry vacuum cleaner filter for wet material collection
US9675225B2 (en) 2008-07-04 2017-06-13 Emerson Electric Co. Filter cage for wet/dry vacuums
US8206482B2 (en) * 2008-07-04 2012-06-26 Emerson Electric Co. Vacuum appliance filter assemblies and associated vacuum systems
US20100015895A1 (en) * 2008-07-15 2010-01-21 Hendron Jeffrey J Chemical mechanical polishing pad having electrospun polishing layer
US8105411B2 (en) * 2008-08-28 2012-01-31 Illinois Tool Works Inc. Fluid filter system and method
WO2010049052A1 (de) 2008-10-31 2010-05-06 Carl Freudenberg Kg Filtermedium zur partikelfiltration
US8382872B2 (en) 2008-12-23 2013-02-26 3M Innovative Properties Company Dust collection device for sanding tool
US20100212272A1 (en) * 2009-02-24 2010-08-26 Hollingsworth & Vose Company Filter media suitable for ashrae applications
KR20120051640A (ko) * 2009-07-08 2012-05-22 제이엔씨 파이버스 주식회사 적층 일렉트릿 부직포를 이용한 에어 필터재
US10065481B2 (en) * 2009-08-14 2018-09-04 Freudenberg Filtration Technologies, L.P. Non-woven air exhauster and filter
US20110308386A1 (en) * 2010-06-16 2011-12-22 Jerome Claracq Efficiency-enhanced gas filter medium
USD666372S1 (en) 2011-08-15 2012-08-28 Techtronic Floor Care Technology Limited Filter housing
DK2777795T3 (en) * 2013-03-15 2016-06-06 Eurofilters Holding Nv Vacuum cleaner filter bag
US20140360146A1 (en) * 2013-06-10 2014-12-11 Lydall, Inc. Wet-laid dual-layer air filtration media including a large diameter synthetic polymeric fiber in a top layer thereof
US9168476B2 (en) 2013-10-11 2015-10-27 3M Innovative Properties Company Air filter comprising a microperforated film, and method of using
KR102391170B1 (ko) 2014-08-20 2022-04-28 리서치 트라이앵글 인스티튜트 입자 검출을 위한 장치, 시스템 및 방법
WO2016081937A1 (en) * 2014-11-21 2016-05-26 E. I. Du Pont De Nemours And Company In-situ charging fiber spinning method for producing a nonwoven electret
WO2019051171A1 (en) * 2017-09-07 2019-03-14 Morris Anastasi Nicole Elizabeth SMALL DIAMETER TUBULAR POROUS FIBER FILTER
CN116059738B (zh) * 2023-02-22 2023-11-24 苏州大学 一种多功能非织造过滤材料及其制备方法

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1453447A (en) * 1972-09-06 1976-10-20 Kimberly Clark Co Nonwoven thermoplastic fabric
US4011067A (en) * 1974-01-30 1977-03-08 Minnesota Mining And Manufacturing Company Filter medium layered between supporting layers
US4116648A (en) * 1976-10-27 1978-09-26 Aktiebolaget Electrolux Multi-layer filter dust bag for a vacuum cleaner
US4164400A (en) * 1976-12-21 1979-08-14 Scott/Chatham Company Filters
US4257791A (en) * 1976-12-21 1981-03-24 Lydall, Inc. Filter
US4215682A (en) * 1978-02-06 1980-08-05 Minnesota Mining And Manufacturing Company Melt-blown fibrous electrets
US4375718A (en) * 1981-03-12 1983-03-08 Surgikos, Inc. Method of making fibrous electrets
JPS58109113A (ja) * 1981-12-21 1983-06-29 Japan Vilene Co Ltd 「あ」材の製造方法
US4589894A (en) * 1984-04-11 1986-05-20 Minnesota Mining And Manufacturing Co. Disposable filter for a vacuum cleaner
US4604203A (en) * 1984-09-14 1986-08-05 Minnesota Mining And Manufacturing Co. Cooking oil filtering apparatus and filter therefor
US4631933A (en) * 1984-10-12 1986-12-30 Minnesota Mining And Manufacturing Company Stitch-bonded thermal insulating fabrics
US4650506A (en) * 1986-02-25 1987-03-17 Donaldson Company, Inc. Multi-layered microfiltration medium
JPS62210026A (ja) * 1986-03-12 1987-09-16 Toray Ind Inc 掃除機フイルタ
US4797318A (en) * 1986-07-31 1989-01-10 Kimberly-Clark Corporation Active particle-containing nonwoven material, method of formation thereof, and uses thereof

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JPH0732753B2 (ja) 1995-04-12
ES2055106T3 (es) 1994-08-16
EP0375234B1 (de) 1994-06-22
JPH02220622A (ja) 1990-09-03
CA2004048C (en) 2001-01-23
CA2004048A1 (en) 1990-06-22
EP0375234A1 (de) 1990-06-27
DE68916392D1 (de) 1994-07-28
US4917942A (en) 1990-04-17

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