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EP 4 419 748 A1

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(43) Date of publication: 28.08.2024 Bulletin 2024/35 (21) Application number: 22883083.2 (22) Date of filing: 20.10.2022

(51) International Patent Classification (IPC):  D21H 21/16(2006.01) B32B 29/06(2006.01) D21H 19/36(2006.01) B32B 27/10(2006.01) D21H 17/11(2006.01) (52) Cooperative Patent Classification (CPC): D21H 19/385; D21H 21/16; D21H 27/10; D21H 17/11; D21H 19/44 (86) International application number: PCT/IB2022/060091 (87) International publication number: WO 2023/067541 (27.04.2023 Gazette 2023/17)

(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 ME MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA Designated Validation States: KH MA MD TN (30) Priority: 22.10.2021 SE 2151290 (71) Applicant: Stora Enso Oyj 00101 Helsinki (FI)	(72) Inventors: HANSSON, Susanne 135 54 Tyresö (SE) BÅDENLID, Raija 65216 Karlstad (SE) BRANDÉN, Carl-Magnus 655 97 Molkom (SE) (74) Representative: Steinrud, Henrik  Stora Enso AB Group Intellectual Property Box 9090 65009 Karlstad 65009 Karlstad (SE)