Title:
WET NON-WOVEN FABRIC FOR FILTER, FILTER MEDIUM FOR FILTER, AND FILTER
Document Type and Number:
WIPO Patent Application WO/2019/188923
Kind Code:
A1
Abstract:
A wet non-woven fabric for a filter according to the present invention is formed of vinylon, polyester, and polyvinyl alcohol and contains 10 to 20% of the polyvinyl alcohol by weight, and the surface roughness (SMD) of a surface of the wet non-woven fabric, the surface being disposed at the upstream side in ventilation, is 2.7 µm or less.
Inventors:
TAKAMI KENTO (JP)
HIDAKA YUSUKE (JP)
HIDAKA YUSUKE (JP)
Application Number:
PCT/JP2019/012395
Publication Date:
October 03, 2019
Filing Date:
March 25, 2019
Export Citation:
Assignee:
TOYO BOSEKI (JP)
International Classes:
B01D39/16; D04H1/407; D04H1/4309; D04H1/435; D21H13/10
Domestic Patent References:
WO2001077435A1 | 2001-10-18 | |||
WO2008038436A1 | 2008-04-03 |
Foreign References:
JPH0959859A | 1997-03-04 | |||
JP2005133260A | 2005-05-26 | |||
JP2017014648A | 2017-01-19 | |||
JP2009242973A | 2009-10-22 | |||
JPH115058A | 1999-01-12 | |||
JPH0398642A | 1991-04-24 | |||
JP2001218824A | 2001-08-14 | |||
JP2014136475A | 2014-07-28 |
Other References:
See also references of EP 3777991A4
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