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(11)

EP 4 359 604 A1

(12)

(43) Date of publication: 01.05.2024 Bulletin 2024/18 (21) Application number: 22757981.0 (22) Date of filing: 23.06.2022

(51) International Patent Classification (IPC):  D21H 19/28(2006.01) B32B 27/36(2006.01) B65D 65/42(2006.01) D21H 19/82(2006.01) B32B 27/10(2006.01) B32B 29/00(2006.01) D21H 19/56(2006.01) D21H 27/10(2006.01) (52) Cooperative Patent Classification (CPC): D21H 19/82; D21H 19/28; D21H 19/56; D21H 27/10 (86) International application number: PCT/FI2022/050467 (87) International publication number: WO 2022/269141 (29.12.2022 Gazette 2022/52)

(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: 24.06.2021 FI 20215756 (71) Applicant: MM Kotkamillis OY 48101 Kotka (FI)	(72) Inventor: KUNI, Stefan 48101 Kotka (FI) (74) Representative: Berggren Oy  P.O. Box 16 Eteläinen Rautatiekatu 10A 00101 Helsinki 00101 Helsinki (FI)