JPS5778917A - Electrostatic induction type filter medium - Google Patents

Electrostatic induction type filter medium

Info

Publication number
JPS5778917A
JPS5778917A JP15562880A JP15562880A JPS5778917A JP S5778917 A JPS5778917 A JP S5778917A JP 15562880 A JP15562880 A JP 15562880A JP 15562880 A JP15562880 A JP 15562880A JP S5778917 A JPS5778917 A JP S5778917A
Authority
JP
Japan
Prior art keywords
layer
filter medium
fiber
type filter
upper layer
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
JP15562880A
Other languages
Japanese (ja)
Other versions
JPS6351726B2 (en
Inventor
Hisayuki Takigawa
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP15562880A priority Critical patent/JPS5778917A/en
Publication of JPS5778917A publication Critical patent/JPS5778917A/en
Publication of JPS6351726B2 publication Critical patent/JPS6351726B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Filtering Materials (AREA)
  • Electrostatic Separation (AREA)

Abstract

PURPOSE: To provide the titled filter medium wherein a stack of fiber layers constituting the filter medium is comprised of an upper layer, an intermediate layer and a lower layer which are composed of different electrically chargeable fibers respectively, with a density gradient layer provided therein, and sparking is prevented by using both a positively chargeable fiber and a negatively chargeable fiber.
CONSTITUTION: This filter medium has a three-layer construction of the upper layer (a), the lower layer (c) and the intermediate layer (b) which have different dielectric properties. The upper layer (a) is composed of positively chargeable fibers 1 having a large size of 10W30 denier, the lower layer (c) is composed of negatively chargeable fibers 2 having a small size of 10W3 denier, and the intermediate layer (b) is composed of a mixture of the fiber 1 used in the upper layer (a) and the fiber 2 used in the lower layer (c).
COPYRIGHT: (C)1982,JPO&Japio
JP15562880A 1980-11-04 1980-11-04 Electrostatic induction type filter medium Granted JPS5778917A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15562880A JPS5778917A (en) 1980-11-04 1980-11-04 Electrostatic induction type filter medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15562880A JPS5778917A (en) 1980-11-04 1980-11-04 Electrostatic induction type filter medium

Publications (2)

Publication Number Publication Date
JPS5778917A true JPS5778917A (en) 1982-05-17
JPS6351726B2 JPS6351726B2 (en) 1988-10-14

Family

ID=15610145

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15562880A Granted JPS5778917A (en) 1980-11-04 1980-11-04 Electrostatic induction type filter medium

Country Status (1)

Country Link
JP (1) JPS5778917A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61155046U (en) * 1985-03-15 1986-09-26
JPS62187649U (en) * 1986-05-18 1987-11-28
US4902306A (en) * 1988-08-09 1990-02-20 Air Purification Products International, Inc. Dual-dipole electrostatic air filter
WO2001028656A1 (en) * 1999-10-19 2001-04-26 Hollingsworth & Vose Air Filtration Limited Filter materials and methods for the production thereof
EP1362627A1 (en) * 2002-05-16 2003-11-19 Branofilter Gmbh Multilayer filter structure and use of multilayer structure
JP2011115775A (en) * 2009-12-03 2011-06-16 Hyundai Motor Co Ltd Method for manufacturing electrostatic filter and electrostatic filter applying the same
JP2012170904A (en) * 2011-02-22 2012-09-10 Amano Corp Dust-collecting filter and dust-collecting apparatus having the same filter

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61155046U (en) * 1985-03-15 1986-09-26
JPS62187649U (en) * 1986-05-18 1987-11-28
US4902306A (en) * 1988-08-09 1990-02-20 Air Purification Products International, Inc. Dual-dipole electrostatic air filter
WO2001028656A1 (en) * 1999-10-19 2001-04-26 Hollingsworth & Vose Air Filtration Limited Filter materials and methods for the production thereof
US6811594B1 (en) * 1999-10-19 2004-11-02 Hollingsworth & Vose Air Filtration Limited Filter materials and methods for the production thereof
EP1362627A1 (en) * 2002-05-16 2003-11-19 Branofilter Gmbh Multilayer filter structure and use of multilayer structure
US6966939B2 (en) 2002-05-16 2005-11-22 Branofilter Gmbh Multi-layer filter structure and use of a multi-layer filter structure
JP2011115775A (en) * 2009-12-03 2011-06-16 Hyundai Motor Co Ltd Method for manufacturing electrostatic filter and electrostatic filter applying the same
JP2012170904A (en) * 2011-02-22 2012-09-10 Amano Corp Dust-collecting filter and dust-collecting apparatus having the same filter

Also Published As

Publication number Publication date
JPS6351726B2 (en) 1988-10-14

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