(19)

(11)

EP 1 951 953 A1

(12)

(43) Date of publication: 06.08.2008 Bulletin 2008/32 (21) Application number: 06808010.0 (22) Date of filing: 31.10.2006

(51) International Patent Classification (IPC):  D21C 9/08(2006.01) D21H 21/02(2006.01) (86) International application number: PCT/FI2006/050469 (87) International publication number: WO 2007/051907 (10.05.2007 Gazette 2007/19)

(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: 31.10.2005 FI 20055585 (71) Applicant: Metso Paper, Inc. 00130 Helsinki (FI)	(72) Inventors: LAMMI, Lari FI-28220 Pori (FI) LASSILA, Petri FI-81280 Uimaharju (FI) (74) Representative: Hakola, Unto Tapani  Tampereen Patenttitoimisto Oy Hermiankatu 1 B 33720 Tampere 33720 Tampere (FI)