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EP 4 193 012 A1

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(43) Date of publication: 14.06.2023 Bulletin 2023/24 (21) Application number: 21763123.3 (22) Date of filing: 03.08.2021

(51) International Patent Classification (IPC):  D04H 1/407(2012.01) D01D 5/098(2006.01) D04H 1/56(2006.01) A41D 13/11(2006.01) D04H 1/4291(2012.01) D04H 1/70(2012.01) (52) Cooperative Patent Classification (CPC): D04H 1/4291; D04H 1/407; D04H 1/70; D04H 1/56; D01D 5/0985 (86) International application number: PCT/IB2021/057077 (87) International publication number: WO 2022/029611 (10.02.2022 Gazette 2022/06)

(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 MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: KH MA MD TN (30) Priority: 06.08.2020 IT 202000019429 (71) Applicant: GDM S.P.A. 40133 Bologna (IT)	(72) Inventors: ROSANI, Marco 40133 Bologna (IT) ZAVALLONI, Alessandro 40133 Bologna (IT) PIANTONI, Matteo 40133 Bologna (IT) GIARDINI, Francesco 40133 Bologna (IT) CARUANA, Paolo 40133 Bologna (IT) (74) Representative: Puggioli, Tommaso  Bugnion S.p.A. Via di Corticella, 87 40128 Bologna 40128 Bologna (IT)