(19)

(11)

EP 4 526 514 A1

(12)

(43) Date of publication: 26.03.2025 Bulletin 2025/13 (21) Application number: 23722427.4 (22) Date of filing: 15.05.2023

(51) International Patent Classification (IPC):  D21H 19/32(2006.01) D21H 19/40(2006.01) D21H 19/58(2006.01) D21H 19/38(2006.01) D21H 19/52(2006.01) D21H 19/60(2006.01) (52) Cooperative Patent Classification (CPC): D21H 19/385; D21H 19/40; D21H 19/58; D21H 19/60; D21H 19/52; D21H 19/32 (86) International application number: PCT/EP2023/062885 (87) International publication number: WO 2023/222566 (23.11.2023 Gazette 2023/47)

(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: 16.05.2022 IT 202200010112 (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)