JPS6463012A - Electret filter medium - Google Patents

Electret filter medium

Info

Publication number
JPS6463012A
JPS6463012A JP21983787A JP21983787A JPS6463012A JP S6463012 A JPS6463012 A JP S6463012A JP 21983787 A JP21983787 A JP 21983787A JP 21983787 A JP21983787 A JP 21983787A JP S6463012 A JPS6463012 A JP S6463012A
Authority
JP
Japan
Prior art keywords
filter medium
electret filter
molded material
electret
parts
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
JP21983787A
Other languages
Japanese (ja)
Other versions
JP2555625B2 (en
Inventor
Yatsuhiro Tani
Masao Minami
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.)
Toyobo Co Ltd
Original Assignee
Toyobo Co Ltd
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 Toyobo Co Ltd filed Critical Toyobo Co Ltd
Priority to JP62219837A priority Critical patent/JP2555625B2/en
Publication of JPS6463012A publication Critical patent/JPS6463012A/en
Application granted granted Critical
Publication of JP2555625B2 publication Critical patent/JP2555625B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE:To obtain a filter medium which is little in pressure drop and excellent in removal efficiency by fixing the intervals between the ridge parts of adjacent folds of a folded electret filter medium by bridging the ridges with a slender molded material made of resin having m.p. lower than the m.p. of material constituting the filter medium. CONSTITUTION:Only the ridge parts of the folds of an electret filter medium are bridged and fixed with a slender molded material made of resin having m.p. lower than that of material constituting the medium. As a result, since leak of static electricity permanently electrified in the electret filter medium is not almost caused, removal efficiency of fine particles such as dust is not almost lowered. Further the effective filtration area of the filter medium is not reduced and increase of pressure drop due to clogging can be prevented because no molded material sticks to the slanted parts of the flutes of the electret filter medium. Furthermore the intervals between the sufficiently folded ridge parts are effectively held and therefore bonding and overlapping of the slanted faces of the adjacent folds can be prevented.
JP62219837A 1987-09-01 1987-09-01 Method for manufacturing electret material Expired - Fee Related JP2555625B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62219837A JP2555625B2 (en) 1987-09-01 1987-09-01 Method for manufacturing electret material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62219837A JP2555625B2 (en) 1987-09-01 1987-09-01 Method for manufacturing electret material

Publications (2)

Publication Number Publication Date
JPS6463012A true JPS6463012A (en) 1989-03-09
JP2555625B2 JP2555625B2 (en) 1996-11-20

Family

ID=16741827

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62219837A Expired - Fee Related JP2555625B2 (en) 1987-09-01 1987-09-01 Method for manufacturing electret material

Country Status (1)

Country Link
JP (1) JP2555625B2 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007014891A (en) * 2005-07-08 2007-01-25 Amano Corp Filter for dust collector
US7364607B2 (en) 2002-05-20 2008-04-29 Toyo Boseki Kabushiki Kaisha Wrought fiber sheet and filter unit
JP2009502463A (en) * 2005-07-29 2009-01-29 マン ウント フンメル ゲゼルシャフト ミット ベシュレンクテル ハフツング Method for tightening folding filter medium and filter medium tightened by the method
WO2011158324A1 (en) * 2010-06-15 2011-12-22 東洋紡績株式会社 Filter support body and filter using same
JP2018004774A (en) * 2016-06-28 2018-01-11 日本バイリーン株式会社 Filter unit for copier
JP2018047392A (en) * 2016-09-20 2018-03-29 日本無機株式会社 Filter pack, air filter, production method of filter pack and production method of air filter

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS597022U (en) * 1982-07-01 1984-01-18 忍足　義見 air filter
JPS6262822U (en) * 1985-10-09 1987-04-18

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS597022U (en) * 1982-07-01 1984-01-18 忍足　義見 air filter
JPS6262822U (en) * 1985-10-09 1987-04-18

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7364607B2 (en) 2002-05-20 2008-04-29 Toyo Boseki Kabushiki Kaisha Wrought fiber sheet and filter unit
JP2007014891A (en) * 2005-07-08 2007-01-25 Amano Corp Filter for dust collector
JP2009502463A (en) * 2005-07-29 2009-01-29 マン ウント フンメル ゲゼルシャフト ミット ベシュレンクテル ハフツング Method for tightening folding filter medium and filter medium tightened by the method
WO2011158324A1 (en) * 2010-06-15 2011-12-22 東洋紡績株式会社 Filter support body and filter using same
JP2018004774A (en) * 2016-06-28 2018-01-11 日本バイリーン株式会社 Filter unit for copier
JP2018047392A (en) * 2016-09-20 2018-03-29 日本無機株式会社 Filter pack, air filter, production method of filter pack and production method of air filter

Also Published As

Publication number Publication date
JP2555625B2 (en) 1996-11-20

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees