(19)

(11)

EP 4 457 400 A1

(12)

(43) Date of publication: 06.11.2024 Bulletin 2024/45 (21) Application number: 22822983.7 (22) Date of filing: 29.11.2022

(51) International Patent Classification (IPC):  D21H 21/36(2006.01) D21H 19/38(2006.01) D21H 21/16(2006.01) D21H 17/67(2006.01) D21H 19/54(2006.01) D21H 21/18(2006.01) (52) Cooperative Patent Classification (CPC): D21H 21/36; D21H 21/16; D21H 21/18; D21H 17/67; D21H 19/54; D21H 19/38 (86) International application number: PCT/EP2022/083573 (87) International publication number: WO 2023/126114 (06.07.2023 Gazette 2023/27)

(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: 28.12.2021 IT 202100032765 (71) Applicant: FEDRIGONI S.P.A. 37135 Verona (IT)	(72) Inventor: MONACELLI, Luca 33084 Cordenons (Pordenone) (IT) (74) Representative: Modiano, Micaela Nadia et al Modiano & Partners Via Meravigli, 16 20123 Milano 20123 Milano (IT)