Title:
ELECTROSPINNING APPARATUS FOR PRODUCING ULTRAFINE FIBERS HAVING IMPROVED CHARGED SOLUTION CONTROL STRUCTURE AND SOLUTION TRANSFER PUMP THEREFOR
Document Type and Number:
WIPO Patent Application WO/2019/203483
Kind Code:
A1
Abstract:
An electrospinning apparatus for producing ultrafine fibers according to the present invention comprises: a cylindrical metal guide disposed to surround a hollow tube needle, which receives a charged solution and discharges the charged solution in the form of a filament, wherein a high voltage is applied to the cylindrical metal guide to control droplet stability of the charged solution; and a strip-shaped metal guide including a plurality of strip-shaped metal plates, which extend outward from the cylindrical metal guide and are radially arranged to control the direction of a charged filament, whereby discharge droplets of the charged solution are stably maintained, and the charged filament formed therefrom maintains a constant directionality with respect to a substrate, so that a uniform pattern having ultrafine fibers can be manufactured on a collection part.
Inventors:
PARK JONG-SU (KR)
HUH WOONG (KR)
LEE YOUN-CHANG (KR)
HWANG WOONG-JUNE (KR)
HUH WOONG (KR)
LEE YOUN-CHANG (KR)
HWANG WOONG-JUNE (KR)
Application Number:
PCT/KR2019/004024
Publication Date:
October 24, 2019
Filing Date:
April 05, 2019
Export Citation:
Assignee:
PARK JONG SU (KR)
International Classes:
D01D5/00; F04B17/03; F04B23/02
Foreign References:
| KR20020051066A | 2002-06-28 | |||
| KR20170049790A | 2017-05-11 | |||
| KR20080008397A | 2008-01-23 | |||
| KR20020078706A | 2002-10-19 | |||
| US20140331455A1 | 2014-11-13 | |||
| KR20180045660A | 2018-05-04 | |||
| KR20190036242A | 2019-04-04 | |||
| KR20040016320A | 2004-02-21 | |||
| KR20020051066A | 2002-06-28 |
Other References:
See also references of EP 3783134A4
Attorney, Agent or Firm:
PHIL & ONZI INT'L PATENT & LAW FIRM (KR)
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