Title:
LAMINATED NONWOVEN FABRIC SHEET
Document Type and Number:
WIPO Patent Application WO/2018/092666
Kind Code:
A1
Abstract:
The problem addressed by the present invention is to provide a nonwoven sheet that can be used as a mask filter material, has both high dust collection performance and low pressure loss, and further has superior body fitting characteristics and flexibility. The present invention provides a laminated nonwoven fabric sheet formed from an integration of an ultrafine fiber layer and a hydrophilic short fiber layer, wherein: one or both surfaces of the ultrafine fiber layer are laminated with the hydrophilic short fiber layer; the ultrafine fiber layer is formed from a mixture of 20 – 80% by mass of a thermoplastic resin fiber (A) and 80 – 20% by mass of an elastomer resin fiber (B) melted or softened at a temperature lower than the thermoplastic resin (A); the ultrafine fiber layer contains a hindered amine compound; the laminated nonwoven fabric sheet undergoes electret processing; and the 10% elongation strength in one direction and the 10% elongation strength in a direction perpendicular to the one direction differ.
Inventors:
KOJIMA MITSURU (JP)
Application Number:
PCT/JP2017/040368
Publication Date:
May 24, 2018
Filing Date:
November 09, 2017
Export Citation:
Assignee:
JNC CORP (JP)
JNC FIBERS CORP (JP)
JNC FIBERS CORP (JP)
International Classes:
D04H1/4374; A41D13/11; A62B18/02; B32B5/26; D04H1/425; D04H5/06
Domestic Patent References:
| WO2011004696A1 | 2011-01-13 |
Foreign References:
| JP2009256856A | 2009-11-05 | |||
| JP2010242255A | 2010-10-28 |
Attorney, Agent or Firm:
MINORI PATENT PROFESSION CORPORATION (JP)
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