(19)

(11)

EP 1 769 118 A1

(12)

(43) Date of publication: 04.04.2007 Bulletin 2007/14 (21) Application number: 05744411.9 (22) Date of filing: 25.05.2005

(51) International Patent Classification (IPC):  D21C 7/00(2006.01) D21C 7/14(2006.01) (86) International application number: PCT/FI2005/050174 (87) International publication number: WO 2005/116328 (08.12.2005 Gazette 2005/49)

(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 MC NL PL PT RO SE SI SK TR (30) Priority: 28.05.2004 FI 20040730 (71) Applicant: Metso Paper, Inc. 00130 Helsinki (FI)	(72) Inventors: ISOLA, Antti FI-68600 Pietarsaari (FI) ROSENQVIST, Matti FI-29100 Luvia (FI) (74) Representative: Langenskiöld, Tord Karl Walter et al Oy Jalo Ant-Wuorinen Ab, Iso-Roobertinkatu 4-6 A 00120 Helsinki 00120 Helsinki (FI)