Title:
ELECTRET FILTER MEDIUM AND FILTER UNIT
Document Type and Number:
Japanese Patent JP2009136736
Kind Code:
A
Abstract:
To provide an electret filter medium and a filter unit with satisfactory interlayer adhesiveness, causing no interlayer exfoliation, developing low pressure loss and high particle collection efficiency, having slow increase of pressure loss in dust-loaded time, long service life, rigidity, excellent pleat workability, low pressure drop in unit working time, excellent dust holding property, thin thickness, little fluffing or dropping of fiber or resin.
The electret filter medium is formed by integrating a layer formed by bonding a reinforcing net to thermally bonded nonwoven fabric or long fiber nonwoven fabric, with an electret layer consisting of round short fiber by interlacing.
Inventors:
MORIGUCHI SANENORI
GOTO SADAHITO
UEDA KAZUHIRO
GOTO SADAHITO
UEDA KAZUHIRO
Application Number:
JP2007314173A
Publication Date:
June 25, 2009
Filing Date:
December 05, 2007
Export Citation:
Assignee:
TOYO BOSEKI
International Classes:
B01D39/14; B01D39/16; B03C3/28; D04H1/498
Domestic Patent References:
| JPH08117526A | 1996-05-14 | |||
| JP2007146357A | 2007-06-14 | |||
| JP2003292688A | 2003-10-15 | |||
| JP2004082109A | 2004-03-18 | |||
| JP2000061223A | 2000-02-29 | |||
| JPS6242715A | 1987-02-24 | |||
| JPH04354505A | 1992-12-08 | |||
| JP2004183195A | 2004-07-02 |
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