(19)

(11)

EP 2 419 562 A1

(12)

(43) Date of publication: 22.02.2012 Bulletin 2012/08 (21) Application number: 10764734.9 (22) Date of filing: 29.03.2010

(51) International Patent Classification (IPC):  D21C 9/18(2006.01) D21F 3/02(2006.01) D21F 2/00(2006.01) D21G 3/00(2006.01) (86) International application number: PCT/SE2010/050344 (87) International publication number: WO 2010/120228 (21.10.2010 Gazette 2010/42)

(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: 14.04.2009 SE 0950242 (71) Applicant: Metso Paper, Inc. 00101 Helsinki (FI)	(72) Inventor: ÖDMARK, Leif SE-864 33 Matfors (SE) (74) Representative: Stenborg, Anders Vilhelm et al Aros Patent AB P.O. Box 1544 751 45 Uppsala 751 45 Uppsala (SE)