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(11)

EP 4 301 913 A1

(12)

(43) Date of publication: 10.01.2024 Bulletin 2024/02 (21) Application number: 22713446.7 (22) Date of filing: 25.02.2022

(51) International Patent Classification (IPC):  D01F 6/70(2006.01) D01D 5/04(2006.01) D01F 1/10(2006.01) D01D 1/02(2006.01) (52) Cooperative Patent Classification (CPC): D01F 6/70; D01F 1/10; D01D 5/04; D01D 1/02; D01F 1/103 (86) International application number: PCT/IB2022/051684 (87) International publication number: WO 2022/185171 (09.09.2022 Gazette 2022/36)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: KH MA MD TN (30) Priority: 01.03.2021 JP 2021031481 08.02.2022 JP 2022017721 (71) Applicant: Toray Opelontex Co., Ltd Osaka 530-8222 (JP)	(72) Inventors: TANAKA, Toshihiro Otsushi, Shiga 520-8558 (JP) SUZUKI, Katsuka Otsushi, Shiga 520-8558 (JP) KANBAYASHI, Tatsuaki Otsushi, Shiga 520-8558 (JP) NAESHIRO, Kazuki Otsushi, Shiga 520-8558 (JP) (74) Representative: Carpmaels & Ransford LLP  One Southampton Row London WC1B 5HA London WC1B 5HA (GB)