Title:
COMPOSITE NONWOVEN FABRIC AND ARTICLE COMPRISING SAME
Document Type and Number:
WIPO Patent Application WO/2021/194248
Kind Code:
A1
Abstract:
Disclosed are composite nonwoven fabric and an article comprising same. The disclosed nonwoven fabric comprises a charged meltblown nonwoven fabric layer and a spunbond nonwoven fabric layer on one or both sides thereof, and the fine dust removal performance maintenance rate represented by mathematical expression 1 is 80% or more: [mathematical expression 1] Fine dust removal performance maintenance rate (%) = (fine dust removal efficiency after accelerated aging treatment)/(fine dust removal efficiency before accelerated aging treatment) x 100, wherein in the expression, the fine dust is an aerosol containing sodium chloride dispersed in the air, and the accelerated aging treatment refers to storing the composite nonwoven fabric at a temperature of 70 °C for 3 days.
Inventors:
YOON DO KYUNG (KR)
JEONG JIN IL (KR)
JEONG GEUNG SIK (KR)
JEONG JIN IL (KR)
JEONG GEUNG SIK (KR)
Application Number:
PCT/KR2021/003639
Publication Date:
September 30, 2021
Filing Date:
March 24, 2021
Export Citation:
Assignee:
TORAY ADVANCED MAT KOREA INC (KR)
International Classes:
B01D39/16; D04H1/544; D04H1/549; D04H1/55
Foreign References:
| KR20150079137A | 2015-07-08 | |||
| KR101554052B1 | 2015-09-17 | |||
| KR20030032574A | 2003-04-26 | |||
| KR20180055551A | 2018-05-25 | |||
| KR102228591B1 | 2021-03-16 |
Attorney, Agent or Firm:
Y.P.LEE, MOCK & PARTNERS (KR)
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