Title:
FILTRATION MATERIAL, FILTER ELEMENT USING SAME, AND METHOD FOR MANUFACTURING FILTRATION MATERIAL
Document Type and Number:
WIPO Patent Application WO/2016/129615
Kind Code:
A1
Abstract:
Provided are: a filtration material having excellent rigidity and trapping efficiency; a filter element that uses the filtration material; and a method for manufacturing the filtration material. This filtration material comprises a fused non-woven fabric layer having fused fibers, and a friction-charge non-woven fabric layer in which fibers comprising at least two different types of synthetic resins are mixed. The fused portions of the fused fibers are undamaged, and the 100 γ value of the filtration material is at least 35. This filter element is provided in a state in which the filtration material is pleated. The filtration material can be manufactured by laminating a fiber web containing fused fibers, and a mixed fiber web obtained by mixing fibers comprising at least two different types of synthetic resins, then fusing the fused fibers, washing the resulting laminate, and charging the mixed fiber web by friction through the action of a gas.
Inventors:
KOBORI SATORU (JP)
NISHITANI TAKASHI (JP)
MATSUDA NOKI (JP)
NISHITANI TAKASHI (JP)
MATSUDA NOKI (JP)
Application Number:
PCT/JP2016/053888
Publication Date:
August 18, 2016
Filing Date:
February 10, 2016
Export Citation:
Assignee:
JAPAN VILENE CO LTD (JP)
International Classes:
B01D39/16; B03C3/28; D04H1/559
Foreign References:
| JPH08117526A | 1996-05-14 | |||
| JP2003047811A | 2003-02-18 | |||
| JP2009136736A | 2009-06-25 | |||
| JP2009136735A | 2009-06-25 | |||
| JP2014128758A | 2014-07-10 |
Attorney, Agent or Firm:
MORITA Kenichi et al. (JP)
Ken-ichi Morita (JP)
Ken-ichi Morita (JP)
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