Title:
METHOD FOR MANUFACTURING ANTIBACTERIAL DEODORIZING HEPA FILTER BY USING WATER HYDRO CHARGING PROCESS
Document Type and Number:
WIPO Patent Application WO/2022/225356
Kind Code:
A1
Abstract:
The present invention relates to a method for manufacturing an antibacterial deodorizing HEPA filter by using a water hydro charging process. The present invention comprises: a first step of melt-spinning a thermoplastic polymer in a melt-blown manner, thereby preparing a melt-blown nonwoven fabric; and a second step of, by absorption of the sprayed photocatalytic dispersion from below the melt-blown nonwoven fabric, spraying a photocatalytic dispersion from above the melt-blown nonwoven fabric and allowing a photocatalyst to penetrate into the melt-blown nonwoven fabric and be coated on the surface of the nonwoven fabric, thereby manufacturing a HEPA filter, wherein the HEPA filter has an increased electrostatic attraction due to the friction between the melt-blown nonwoven fabric and the photocatalytic dispersion and antibacterial and deodorizing performances through the photocatalyst.
Inventors:
JUNG CHUN SIK (KR)
Application Number:
PCT/KR2022/005754
Publication Date:
October 27, 2022
Filing Date:
April 22, 2022
Export Citation:
Assignee:
BLUEINDUS CO LTD (KR)
International Classes:
B01D39/16; B01J21/06; B01J35/00
Foreign References:
| KR20140135439A | 2014-11-26 | |||
| KR20190051109A | 2019-05-15 | |||
| KR20100075869A | 2010-07-05 | |||
| KR20200093192A | 2020-08-05 | |||
| US20110150720A1 | 2011-06-23 |
Attorney, Agent or Firm:
PUKYUNG INTERNATIONAL PATENT & LAW FIRM (KR)
Download PDF: