FIBER STRUCTURE AND USE THEREOF

WIPO Patent Application WO/2023/282088

A1

Provided is a fiber structure with a high dust holding capacity. This fiber structure comprises a thick fiber group comprising fibers A having a fiber diameter per single fiber exceeding 5 μｍ, and a thin fiber group comprising fibers B having a fiber diameter per single fiber of no more than 5 μｍ, the fiber structure having an interlaced region in which the thick fiber group and the thin fiber group are interlaced. If the fiber structure is divided into ten equal sections in the thickness direction to create a first region to a tenth region from the thin fiber group side toward the thick fiber group side, if the fill rate of the fibers A present in a region S indicating the first to third regions, present in a region T indicating the fourth to seventh regions, and present in a region U indicating the eighth to tenth regions, is SA, TA, and UA, respectively, and if the fill rate of the fibers B is SB, TB, and UB, respectively, then SB is the greatest among SB, TB, and UB, and TA+TB>SA+SB>UA+UB.

SEKIYA SHINJI (JP)
OBATA SOICHI (JP)
OCHIAI TORU (JP)
YOSHIDA TSUGUMI (JP)
OKAMOTO MINORU (JP)

PCT/JP2022/025285

January 12, 2023

June 24, 2022

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KURARAY KURAFLEX CO LTD (JP)

D04H3/16; A41D13/11; A62B18/02; B01D39/16; D04H1/4374; D04H1/4382; D04H1/498; D04H3/105; D04H3/11

WO2020137605A1	2020-07-02
WO2012014501A1	2012-02-02
WO2020137605A1	2020-07-02
WO2021010178A1	2021-01-21

JP2008184701A	2008-08-14
JP2009101254A	2009-05-14
JPS61272063A	1986-12-02
JP2019126520A	2019-08-01
JP2001279570A	2001-10-10
JP2018178337A	2018-11-15

SUGIMOTO, Shuji et al. (JP)

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