Title:
ELECTRICALLY CHARGED FILTER AND MASK
Document Type and Number:
WIPO Patent Application WO/2011/138951
Kind Code:
A1
Abstract:
Disclosed is an electrically charged filter which is characterized by comprising: a liquid-charged nonwoven fabric layer that has been electrically charged by the action of a force applied by means of a polar liquid; and a friction-charged nonwoven fabric layer that has been electrically charged by the friction between multiple types of fiber components. The electrically charged filter has a high initial trapping effect and rarely undergoes the deterioration of trapping efficiency.
Inventors:
TAKEUCHI MASAMI (JP)
TAKASHIMA YUICHIROU (JP)
TAKASHIMA YUICHIROU (JP)
Application Number:
PCT/JP2011/060546
Publication Date:
November 10, 2011
Filing Date:
May 02, 2011
Export Citation:
Assignee:
JAPAN VILENE CO LTD (JP)
TAKEUCHI MASAMI (JP)
TAKASHIMA YUICHIROU (JP)
TAKEUCHI MASAMI (JP)
TAKASHIMA YUICHIROU (JP)
International Classes:
B01D39/16; A62B18/02; B03C3/28; B32B5/26
Foreign References:
| JP2003524519A | 2003-08-19 | |||
| JP2007092242A | 2007-04-12 | |||
| JP2005029944A | 2005-02-03 |
Other References:
See also references of EP 2567744A4
"Senni Binran - Genryo Hen", October 1970, MARUZEN CO., LTD., pages: 727 - 779
"Boujin Masuku no Kikaku", 11 September 2000, MINISTRY OF HEALTH LABOR & WELFARE
"Senni Binran - Genryo Hen", October 1970, MARUZEN CO., LTD., pages: 727 - 779
"Boujin Masuku no Kikaku", 11 September 2000, MINISTRY OF HEALTH LABOR & WELFARE
Attorney, Agent or Firm:
HASEGAWA Yoshiki et al. (JP)
Yoshiki Hasegawa (JP)
Yoshiki Hasegawa (JP)
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Claims: