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(11)

EP 1 866 478 A1

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(43) Date of publication: 19.12.2007 Bulletin 2007/51 (21) Application number: 06725904.4 (22) Date of filing: 06.04.2006

(51) International Patent Classification (IPC):  D21F 1/00(2006.01) D21G 5/00(2006.01) D21F 7/00(2006.01) (86) International application number: PCT/FI2006/050129 (87) International publication number: WO 2006/106186 (12.10.2006 Gazette 2006/41)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR (30) Priority: 08.04.2005 FI 20055159 (71) Applicant: Metso Paper, Inc. 00130 Helsinki (FI)	(72) Inventors: SALONIEMI, Jyrki FI-40950 Muurame (FI) HORSMA-AHO, Simo FI-40950 Muurame (FI) (74) Representative: TBK-Patent  Bavariaring 4-6 80336 München 80336 München (DE)