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(11)

EP 2 262 946 A1

(12)

(43) Date of publication: 22.12.2010 Bulletin 2010/51 (21) Application number: 09726606.8 (22) Date of filing: 20.03.2009

(51) International Patent Classification (IPC):  D21C 9/06(2006.01) D21C 9/18(2006.01) (86) International application number: PCT/SE2009/050294 (87) International publication number: WO 2009/123546 (08.10.2009 Gazette 2009/41)

(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 TR Designated Extension States: AL BA RS (30) Priority: 31.03.2008 SE 0800718 (71) Applicant: Metso Paper, Inc. 00101 Helsinki (FI)	(72) Inventors: DANIELSSON, Magnus S-864 91 Matfors (SE) BYLANDER, Johan S-852 37 Sundsvall (SE) DAHL, Mårten S-865 51 Ankarsvik (SE) (74) Representative: Saitton, Johanna  Metso Paper Sundsvall AB S-851 94 Sundsvall S-851 94 Sundsvall (SE)