(19)

(11)

EP 4 680 803 A1

(12)

(43) Date of publication: 21.01.2026 Bulletin 2026/04 (21) Application number: 24713404.2 (22) Date of filing: 15.03.2024

(51) International Patent Classification (IPC):  D21H 19/18(2006.01) D21H 27/00(2006.01) C11C 5/00(2006.01) D21H 27/10(2006.01) (52) Cooperative Patent Classification (CPC): D21H 27/00; D21H 19/18; D21H 27/10; C11C 5/00; C11C 5/008; C11C 5/006 (86) International application number: PCT/EP2024/056973 (87) International publication number: WO 2024/189197 (19.09.2024 Gazette 2024/38)

(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: GE KH MA MD TN (30) Priority: 16.03.2023 SE 2350293 (71) Applicant: Jord Innovation AB 832 41 Frösön (SE)	(72) Inventors: WOJAS, Natalia Anna Lidingö 181 55 (SE) CINAR CIFTCI, Göksu 170 77 Solna (SE) HASSANZADEH, Salman 186 42 Vallentuna (SE) AYDIN, Juhanes 152 41 Södertälje (SE) HÄGER, Axel 83241 Frösön (SE) KRISTOFFERSSON, Linus 83130 Östersund (SE) (74) Representative: Potter Clarkson  Chapel Quarter Mount Street Nottingham NG1 6HQ Nottingham NG1 6HQ (GB)