JPS5610314A - Electret filter - Google Patents

Electret filter

Info

Publication number
JPS5610314A
JPS5610314A JP8734579A JP8734579A JPS5610314A JP S5610314 A JPS5610314 A JP S5610314A JP 8734579 A JP8734579 A JP 8734579A JP 8734579 A JP8734579 A JP 8734579A JP S5610314 A JPS5610314 A JP S5610314A
Authority
JP
Japan
Prior art keywords
electret
filter
films
flat
dust
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.)
Granted
Application number
JP8734579A
Other languages
Japanese (ja)
Other versions
JPS5925614B2 (en
Inventor
Takuji Watanabe
Takashi Takahira
Mitsuo Takaya
Minoru Yoshida
Kazuyuki Yamazaki
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.)
Nitta Corp
Mitsui Petrochemical Industries Ltd
Original Assignee
Nitta Corp
Mitsui Petrochemical Industries Ltd
Nitta Belt KK
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 Nitta Corp, Mitsui Petrochemical Industries Ltd, Nitta Belt KK filed Critical Nitta Corp
Priority to JP8734579A priority Critical patent/JPS5925614B2/en
Publication of JPS5610314A publication Critical patent/JPS5610314A/en
Publication of JPS5925614B2 publication Critical patent/JPS5925614B2/en
Expired legal-status Critical Current

Links

Classifications

    • 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

Landscapes

  • Electrostatic Separation (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Filtering Materials (AREA)

Abstract

PURPOSE:To provide the electret filter from which no dust is scattered and which is high in dust collection efficiency and long in lifetime, by stacking creased electret films with flat electret films. CONSTITUTION:A high-molecular film of polyolefin resin or the like is changed into the electret film 1. The electret film is continually bent so that creases 2 are made. Such creased electret films are stacked with flat electret films 4 in the direction of their thickness. The edges of the creases are bonded or fused to the flat films 4 so that a stacked piece 5 is provided. The filter made of the stacked piece does not flap in operation. No dust is scattered from the filter. The dust collection efficiency of the filter is high for a long period.
JP8734579A 1979-07-09 1979-07-09 electret filter Expired JPS5925614B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8734579A JPS5925614B2 (en) 1979-07-09 1979-07-09 electret filter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8734579A JPS5925614B2 (en) 1979-07-09 1979-07-09 electret filter

Publications (2)

Publication Number Publication Date
JPS5610314A true JPS5610314A (en) 1981-02-02
JPS5925614B2 JPS5925614B2 (en) 1984-06-19

Family

ID=13912273

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8734579A Expired JPS5925614B2 (en) 1979-07-09 1979-07-09 electret filter

Country Status (1)

Country Link
JP (1) JPS5925614B2 (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59228957A (en) * 1983-06-09 1984-12-22 Fuji Xerox Co Ltd Powder particle collecting device
JPH04322712A (en) * 1991-04-19 1992-11-12 Hitachi Ltd Air cleaner
US5304227A (en) * 1990-11-30 1994-04-19 Mitsui Petrochemical Industries, Ltd. Electret filters
WO2000061293A1 (en) * 1999-04-12 2000-10-19 Darwin Technology Limited Air cleaning device
WO2001028692A1 (en) * 1999-10-19 2001-04-26 3M Innovative Properties Company Electrofiltration apparatus
US6280824B1 (en) 1999-01-29 2001-08-28 3M Innovative Properties Company Contoured layer channel flow filtration media
US6524488B1 (en) 1998-06-18 2003-02-25 3M Innovative Properties Company Method of filtering certain particles from a fluid using a depth loading filtration media
US6589317B2 (en) 2001-08-10 2003-07-08 3M Innovative Properties Company Structured surface filtration media array
US6758884B2 (en) 2002-08-07 2004-07-06 3M Innovative Properties Company Air filtration system using point ionization sources
US7141098B2 (en) 2004-01-22 2006-11-28 3M Innovative Properties Company Air filtration system using point ionization sources
WO2015056724A1 (en) 2013-10-15 2015-04-23 株式会社ユポ・コーポレーション Filter

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7009738B2 (en) * 2016-12-28 2022-01-26 東洋紡株式会社 Manufacturing method of electret filter media

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59228957A (en) * 1983-06-09 1984-12-22 Fuji Xerox Co Ltd Powder particle collecting device
US5304227A (en) * 1990-11-30 1994-04-19 Mitsui Petrochemical Industries, Ltd. Electret filters
JPH04322712A (en) * 1991-04-19 1992-11-12 Hitachi Ltd Air cleaner
US6524488B1 (en) 1998-06-18 2003-02-25 3M Innovative Properties Company Method of filtering certain particles from a fluid using a depth loading filtration media
JP2010042406A (en) * 1999-01-29 2010-02-25 Three M Innovative Properties Co Channel flow filtration medium having contoured layer
US6752889B2 (en) 1999-01-29 2004-06-22 3M Innovative Properties Company Contoured layer channel flow filtration media
US6280824B1 (en) 1999-01-29 2001-08-28 3M Innovative Properties Company Contoured layer channel flow filtration media
JP2002540935A (en) * 1999-04-12 2002-12-03 ダーウイン テクノロジー リミテッド Air purifier
US7014688B2 (en) 1999-04-12 2006-03-21 Darwin Technology Limited Air cleaning device
EP1262239A3 (en) * 1999-04-12 2002-12-11 Darwin Technology Limited Electrostatic air cleaning device
JP2010099657A (en) * 1999-04-12 2010-05-06 Darwin Technology Ltd Air cleaning device
CN100357033C (en) * 1999-04-12 2007-12-26 达尔文技术有限公司 air purification equipment
US6749669B1 (en) 1999-04-12 2004-06-15 Darwin Technology Limited Air cleaning device
WO2000061293A1 (en) * 1999-04-12 2000-10-19 Darwin Technology Limited Air cleaning device
KR100734504B1 (en) * 1999-04-12 2007-07-03 다윈 테크놀로지 리미티드 Air purifier
AU780343B2 (en) * 1999-04-12 2005-03-17 Darwin Technology International Limited Air cleaning device
EP1527818A1 (en) * 1999-04-12 2005-05-04 Darwin Technology Limited Air cleaning device
US6454839B1 (en) 1999-10-19 2002-09-24 3M Innovative Properties Company Electrofiltration apparatus
US6471746B2 (en) 1999-10-19 2002-10-29 3M Innovative Properties Company Electrofiltration process
WO2001028692A1 (en) * 1999-10-19 2001-04-26 3M Innovative Properties Company Electrofiltration apparatus
US6589317B2 (en) 2001-08-10 2003-07-08 3M Innovative Properties Company Structured surface filtration media array
US6758884B2 (en) 2002-08-07 2004-07-06 3M Innovative Properties Company Air filtration system using point ionization sources
US7141098B2 (en) 2004-01-22 2006-11-28 3M Innovative Properties Company Air filtration system using point ionization sources
WO2015056724A1 (en) 2013-10-15 2015-04-23 株式会社ユポ・コーポレーション Filter
US10010892B2 (en) 2013-10-15 2018-07-03 Yupo Corporation Filter

Also Published As

Publication number Publication date
JPS5925614B2 (en) 1984-06-19

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