Title:
A mixed nonwoven fabric, a filter filtering medium, and a filter unit
Document Type and Number:
Japanese Patent JP5917944
Kind Code:
B2
Abstract:
The present invention provides a filter medium causing a low pressure drop. The present invention is a filter medium including a porous fluororesin membrane and an air-permeable support member laminated on at least one surface of the porous fluororesin membrane. In this filter medium, the air-permeable support member is a blended nonwoven fabric containing: core-sheath fibers (A) having a polyester core and a polyolefin sheath; polyester fibers (B); and core-sheath fibers (C) having a polyester core and a copolymerized polyester sheath.
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Inventors:
Uchiyama Shiho
Yuri Horie
Masahiro Arai
Mori Masaaki
Tetsuo Asano
Nobuhiro Matsunaga
Yuri Horie
Masahiro Arai
Mori Masaaki
Tetsuo Asano
Nobuhiro Matsunaga
Application Number:
JP2012037367A
Publication Date:
May 18, 2016
Filing Date:
February 23, 2012
Export Citation:
Assignee:
NITTO DENKO CORPORATION
Unitika NP Cross Co., Ltd.
Unitika NP Cross Co., Ltd.
International Classes:
B01D39/16; B01D69/10; B01D69/12; B01D71/26; B01D71/36; B01D71/48; B32B5/18; B32B27/12; B32B27/30; D01F8/06; D01F8/14; D04H1/541
Domestic Patent References:
| JP2009136863A | ||||
| JP2008114177A | ||||
| JP2004181341A | ||||
| JP2001098452A | ||||
| JP8120552A |
Attorney, Agent or Firm:
Koichi Kamata
Koji Amano
Koji Amano