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Title:
NON-WOVEN FABRIC ROLL, AND METHOD FOR MANUFACTURING SAME
Document Type and Number:
WIPO Patent Application WO/2023/190010
Kind Code:
A1
Abstract:
The present invention provides a non-woven fabric roll which has adequate mechanical strength and dimensional stability, while also having excellent film coating workability over a large width using a die-coating method.　A non-woven fabric roll according to the present invention is obtained by winding into a roll shape a long-fiber non-woven fabric comprising fibers having a thermoplastic resin as a main component, wherein: an apparent density of the long-fiber non-woven fabric is at least equal to 0.70 g/cm3 and at most equal to 0.90 g/cm3; a winding hardness of the non-woven fabric roll is at least equal to 35.0 g and at most equal to 50.0 g; and a hardness difference in a roll width direction is at least equal to 7.0 g and at 20.0 g.

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Inventors:
IKEJIRI YUKI (JP)
ISOGAWA TAKAHIRO (JP)
WAKABAYASHI CHINATSU (JP)
Application Number:
PCT/JP2023/011449
Publication Date:
October 05, 2023
Filing Date:
March 23, 2023
Export Citation:
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Assignee:
TORAY INDUSTRIES (JP)
International Classes:
B01D69/10; B01D71/48; B65H18/00; D04H3/011; D04H3/147; D04H3/16
Domestic Patent References:
WO2017038977A12017-03-09
WO2018043324A12018-03-08
WO2018043322A12018-03-08
Foreign References:
JPH07190046A1995-07-28
JPH06306757A1994-11-01
JP2018138704A2018-09-06
CN112359489A2021-02-12
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