(19)

(11)

EP 4 532 826 A1

(12)

(43) Date of publication: 09.04.2025 Bulletin 2025/15 (21) Application number: 23776438.6 (22) Date of filing: 11.09.2023

(51) International Patent Classification (IPC):  D21F 5/02(2006.01) D21F 5/20(2006.01) D21F 5/18(2006.01) (52) Cooperative Patent Classification (CPC): D21F 5/20; D21F 5/02; D21F 5/181 (86) International application number: PCT/GB2023/052343 (87) International publication number: WO 2024/056998 (21.03.2024 Gazette 2024/12)

(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: 14.09.2022 GB 202213478 (71) Applicant: James Cropper PLC Kendal Cumbria LA9 6PZ (GB)	(72) Inventor: KILEFF, Edward Kendal, Cumbria LA9 6PZ (GB) (74) Representative: HGF  HGF Limited 1 City Walk Leeds LS11 9DX Leeds LS11 9DX (GB)