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(11)

EP 2 707 539 A1

(12)

(43) Date of publication: 19.03.2014 Bulletin 2014/12 (21) Application number: 11865841.8 (22) Date of filing: 13.05.2011

(51) International Patent Classification (IPC):  D21C 1/02(2006.01) D21C 1/06(2006.01) D21C 3/26(2006.01) D21C 1/04(2006.01) D21C 3/02(2006.01) (86) International application number: PCT/SE2011/050610 (87) International publication number: WO 2012/158075 (22.11.2012 Gazette 2012/47)

(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 MK MT NL NO PL PT RO RS SE SI SK SM TR (71) Applicant: Metso Paper Sweden AB 851 94 Sundsvall (SE)	(72) Inventors: TROLIN, Daniel Catu de Abrantes - Camacari BA CEP 42840-000 (BR) ANTONSSON, Stefan 117 58 Stockholm (SE) SAETHERÅSEN, Jonas S-663 42 Hammarö (SE) LINDSTRÖM, Mikael S-181 66 Lidingö (SE) (74) Representative: Saitton, Hanna Johanna  Metso Paper Sweden AB Gustav Gidlöfs väg 4 85194 Sundsvall 85194 Sundsvall (SE)