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Patent Searching and Data


Title:
COMPOSITE FILTER MEDIUM COMPRISING WET NONWOVEN FABRIC, AND MANUFACTURING METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2017/217587
Kind Code:
A1
Abstract:
One embodiment of the present invention relates to a composite filter medium comprising: a melt-blown nonwoven fabric layer comprising a fiber having a weight of 5-40 gsm and a fiber diameter of 1-3 μm; and a wet nonwoven fabric layer located on the melt-blown nonwoven fabric layer and comprising 5-30 wt% of a glass fiber having a weight of 40-100 gsm and a fiber diameter of 0.1-2 μm, and provides a composite filter medium having constantly maintained duct control efficiency despite repeated use thereof since the wet nonwoven fabric layer is bonded.

Inventors:
MOON, Jai Joung (19-10, Songjeong-roWansan-gu, Jeonju-si, Jeollabuk-do, 55081, KR)
HONG, Jin Mo (213-1906, 80 Gwanjeobuk-ro,Seo-gu, Daejeon, 35358, KR)
Application Number:
KR2016/008558
Publication Date:
December 21, 2017
Filing Date:
August 03, 2016
Export Citation:
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Assignee:
CLEAN & SCIENCE CO., LTD. (903-1, TradeTower 511, Yeongdong-daero,Gangnam-gu, Seoul, 06164, KR)
International Classes:
B01D39/16; B01D39/02; D04H1/4218; D04H1/555; D04H1/56; D04H1/58
Foreign References:
JP2001321620A2001-11-20
JP2011058128A2011-03-24
JP2015086477A2015-05-07
JP2013063424A2013-04-11
KR20120121079A2012-11-05
Attorney, Agent or Firm:
HAN, Sang Soo (3F Baumoe-ro 190, SeoCho-gu, Seoul, 06747, KR)
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