Title:
SPUNBOND NONWOVEN FABRIC AND PRODUCTION METHOD THEREFOR, LAMINATED NONWOVEN FABRIC, AND HYGENIC MATERIAL AND CLOTHING USING SPUNBOND NONWOVEN FABRIC AND LAMINATED NONWOVEN FABRIC
Document Type and Number:
WIPO Patent Application WO/2024/070467
Kind Code:
A1
Abstract:
In order to provide a spunbond nonwoven fabric that has flexibility and excellent mechanical properties and that allows easy high-level processing such as pleating and bonding with other members, this spunbond nonwoven fabric is formed from fibers constituted of a polypropylene resin and satisfies conditions (1) to (3) below, the average single fiber diameter being 5.0 μm to 20.0 μm. Conditions: (1) the amount of organic peroxide is 100 ppm to 1000 pm; (2) the melt flow rate is 20 g/10 min to 400 g/10 min; and (3) the branching degree λ per one molecule of the polypropylene resin is 1.0×10-7 to 1.0×10-3.
Inventors:
HARA SHOHEI (JP)
TSUCHIYA SHOHEI (JP)
KATSUTA HIROO (JP)
KAJIWARA KENTARO (JP)
MAEKAWA SHIGETOSHI (JP)
TSUCHIYA SHOHEI (JP)
KATSUTA HIROO (JP)
KAJIWARA KENTARO (JP)
MAEKAWA SHIGETOSHI (JP)
Application Number:
PCT/JP2023/031734
Publication Date:
April 04, 2024
Filing Date:
August 31, 2023
Export Citation:
Assignee:
TORAY INDUSTRIES (JP)
International Classes:
D04H3/16; C08F8/50; C08F10/06; D04H3/007
Foreign References:
| JP2011132627A | 2011-07-07 | |||
| JP2001518569A | 2001-10-16 | |||
| US20180094089A1 | 2018-04-05 | |||
| JP2004510849A | 2004-04-08 |
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