(19)

(11)

EP 2 516 734 A1

(12)

(43) Date of publication: 31.10.2012 Bulletin 2012/44 (21) Application number: 10839885.0 (22) Date of filing: 13.12.2010

(51) International Patent Classification (IPC):  D21D 5/06(2006.01) D21D 5/02(2006.01) (86) International application number: PCT/SE2010/051366 (87) International publication number: WO 2011/078764 (30.06.2011 Gazette 2011/26)

(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 (30) Priority: 21.12.2009 SE 0901591 (71) Applicant: Metso Paper, Inc. 00101 Helsinki (FI)	(72) Inventors: BERGDAHL, Anders S-863 34 Sundsbruk (SE) LINDKVIST, David S-865 32 Alnö (SE) (74) Representative: Karlsson, Marie  Metso Paper Sweden AB Gustaf Gidlöfs väg 4 85194 Sundsvall 85194 Sundsvall (SE)