(19)

(11)

EP 2 350 385 A1

(12)

(43) Date of publication: 03.08.2011 Bulletin 2011/31 (21) Application number: 09821642.7 (22) Date of filing: 12.10.2009

(51) International Patent Classification (IPC):  D21F 1/48(2006.01) D21F 9/00(2006.01) (86) International application number: PCT/FI2009/050814 (87) International publication number: WO 2010/046527 (29.04.2010 Gazette 2010/17)

(84) Designated Contracting States: 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 SE SI SK SM TR (30) Priority: 24.10.2008 FI 20086008 (71) Applicant: Metso Paper Inc. 00130 Helsinki (FI)	(72) Inventor: POIKOLAINEN, Antti FIN-40250 Jyväskylä (FI) (74) Representative: TBK  Bavariaring 4-6 80336 München 80336 München (DE)