Title:
積層エレクトレット不織布を用いたエアーフィルター材
Document Type and Number:
Japanese Patent JP5573840
Kind Code:
B2
Abstract:
Present invention provides an air filter material using a laminated electret nonwoven fabric subjected to electret processing in which one layer or a plurality of layers of nonwoven fabrics (referred to as nonwoven fabric B) including fibers having a mean fiber diameter in the range of 10 micrometers to 100 micrometers and being larger than a mean fiber diameter of fibers constituting nonwoven fabric A are laminated on at least one side of a nonwoven fabric (referred to as nonwoven fabric A) obtained by mixing two kinds of fibers having a mean fiber diameter in the range of 0.1 micrometer to 15 micrometers and having a different melting point (fibers having a lower melting point are defined as fibers D and fibers having a higher melting point are defined as fibers E), and a laminated electret filter material having a low pressure loss and a high collection efficiency. The filter material is suitably used for a medical mask, an industrial mask, a general purpose mask or the like.
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Inventors:
Koji Matsuda
Junji Iwata
Islet 満
Junji Iwata
Islet 満
Application Number:
JP2011521874A
Publication Date:
August 20, 2014
Filing Date:
June 21, 2010
Export Citation:
Assignee:
JNC, Inc.
JNC phi バーズ, Inc.
JNC phi バーズ, Inc.
International Classes:
B01D39/16; A62B18/02; B03C3/28; D01F8/14; D04H1/559; D04H3/007; D04H3/009; D04H3/02; D04H3/153; D04H3/16
Domestic Patent References:
| JP2008000696A | 2008-01-10 | |||
| JP2001248056A | 2001-09-14 | |||
| JP2004339677A | 2004-12-02 | |||
| JP2003260321A | 2003-09-16 |
Attorney, Agent or Firm:
Patent business corporation Ikeuchi and Sato and partners