LAMINATED NONWOVEN FABRIC - TORAY INDUSTRIES

Title:

LAMINATED NONWOVEN FABRIC

Document Type and Number:

WIPO Patent Application WO/2018/159421

Kind Code:

A1

Abstract:

The problem addressed by the present invention is to provide a laminated nonwoven fabric achieving both handling properties during manufacturing and during use and adherence to the skin surface at a high level particularly when used for a face mask. The laminated nonwoven fabric has a nonwoven fabric layer (A) and a nonwoven fabric layer (B). The nonwoven fabric layer (A) is formed from a fiber A with a single fiber diameter of 50 – 800 nm, and the nonwoven fabric layer (B) is formed from a fiber B with a single fiber diameter of 3 – 30 µm. The nonwoven fabric layer (B) includes, at 15 – 40% by mass to all of the fiber constituting the nonwoven fabric layer (B), fiber B1 for which the tensile strength measured on the basis of JIS L 1015: 2010, 8.7.2 is 2.0 cN/dtex or less. The nonwoven fabric layer (B) includes fiber B2 for which the tensile strength exceeds 2.0 cN/dtex as measured on the basis of JIS L 1015: 2010, 8.7.2. The nonwoven fabric layer (A) is disposed on the outermost layer of at least one surface.

Inventors:

OYAMA KUMI (JP)
NAKAHARA MAKOTO (JP)
KAJIYAMA HIROSHI (JP)

Application Number:

PCT/JP2018/006295

Publication Date:

September 07, 2018

Filing Date:

February 21, 2018

Export Citation:

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Assignee:

TORAY INDUSTRIES (JP)

International Classes:

D04H1/4374; A45D44/22; B32B5/26

Domestic Patent References:

WO2011004834A1	2011-01-13
WO2012173116A1	2012-12-20
WO2005095686A1	2005-10-13
WO2017122625A1	2017-07-20
WO2006016601A1	2006-02-16
WO2012173116A1	2012-12-20

Foreign References:

JP2009097120A	2009-05-07
JP2015045114A	2015-03-12
JP2007070347A	2007-03-22
JP2013240432A	2013-12-05
JP2001192924A	2001-07-17

Other References: