Title:
MELT-BLOWN FABRIC FOR KN95 MASK AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2022/205558
Kind Code:
A1
Abstract:
A melt-blown fabric for a KN95 mask and a preparation method therefor. The preparation method comprises the steps of: S1, providing a carbon nanotube modified material in which the content of carbon nanotubes is 0.2%-0.5%; and S2, blending the carbon nanotube modified material with a polypropylene melt-blown material having a melt index of 1400-1600 g/10 min, and electret master batch in a mass ratio of (1-6):(91-97):(3-4), and preparing the blended material into a melt-blown fabric in a melt-blown non-woven manner. The melt-blown fabric has high salt filtering efficiency and low breathing resistance.
Inventors:
SHEN ZHIQUAN (CN)
LI TAN (CN)
WANG JUNFENG (CN)
ZHAO JIE (CN)
LI TAN (CN)
WANG JUNFENG (CN)
ZHAO JIE (CN)
Application Number:
PCT/CN2021/092263
Publication Date:
October 06, 2022
Filing Date:
May 08, 2021
Export Citation:
Assignee:
HAINAN SHINER IND CO LTD HAIKOU CN (CN)
International Classes:
D04H1/544; A41D13/11; D01F1/10; D01F6/46; D04H1/54; D04H1/542; C08L23/12
Domestic Patent References:
| WO2011067005A1 | 2011-06-09 |
Foreign References:
| CN112323167A | 2021-02-05 | |||
| CN111484678A | 2020-08-04 | |||
| CN105595465A | 2016-05-25 | |||
| CN102190882A | 2011-09-21 | |||
| CN104759148A | 2015-07-08 | |||
| US20200340145A1 | 2020-10-29 | |||
| US10757988B1 | 2020-09-01 | |||
| CN108642712A | 2018-10-12 |
Attorney, Agent or Firm:
UNITALEN ATTORNEYS AT LAW (CN)
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