Title:
NONWOVEN FABRIC AND METHOD FOR MANUFACTURING SAME
Document Type and Number:
WIPO Patent Application WO/2018/030057
Kind Code:
A1
Abstract:
Provided is a nonwoven fabric having ultrafine fibers and excellent strength during sheet working, and a method for manufacturing the same. This nonwoven fabric is characterized in that the average fiber diameter is 0.8 μｍ or less, and the volume ratio of fibers having a fiber diameter of 1.0 μｍ or less is less than 40%. This method for manufacturing nonwoven fabric is a melt-blowing method characterized in that the die temperature is set such that the resin ejection amount per spinning nozzle is 0.01 g/min or higher and the polymer pressure on the die is 2.3 MPa or higher.
Inventors:
ITO MASASHI (JP)
TAKEDA YUICHI (JP)
HIRABARA TAKEHIKO (JP)
TAKEDA YUICHI (JP)
HIRABARA TAKEHIKO (JP)
Application Number:
PCT/JP2017/025233
Publication Date:
February 15, 2018
Filing Date:
July 11, 2017
Export Citation:
Assignee:
TORAY FINECHEMICALS CO LTD (JP)
International Classes:
D04H3/033
Domestic Patent References:
| WO2012102398A1 | 2012-08-02 | |||
| WO2012014501A1 | 2012-02-02 | |||
| WO2015171707A1 | 2015-11-12 | |||
| WO2016148174A1 | 2016-09-22 |
Foreign References:
| JP2007023391A | 2007-02-01 | |||
| JP2009534548A | 2009-09-24 | |||
| JP2012510006A | 2012-04-26 | |||
| US20080318024A1 | 2008-12-25 | |||
| US20100219138A1 | 2010-09-02 |
Attorney, Agent or Firm:
SAKAI, Masatoshi et al. (JP)
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