(19)

(11)

EP 2 328 691 A1

(12)

(43) Date of publication: 08.06.2011 Bulletin 2011/23 (21) Application number: 09784158.9 (22) Date of filing: 06.08.2009

(51) International Patent Classification (IPC):  B05C 1/08(2006.01) D21H 23/58(2006.01) D21H 23/56(2006.01) D21H 23/22(2006.01) (86) International application number: PCT/FI2009/050649 (87) International publication number: WO 2010/018302 (18.02.2010 Gazette 2010/07)

(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 Designated Extension States: AL BA RS (30) Priority: 11.08.2008 FI 20085765 (71) Applicant: UPM-Kymmene Corporation 00130 Helsinki (FI)	(72) Inventors: KOSKINEN, Timo FI-02130 Espoo (FI) NISSINEN, Vilho FI-54960 Vehkataipale (FI) SINKKO, Tarja FI-53500 Lappeenranta (FI) LINDEMAN, Matti FI-54530 Luumäki (FI) (74) Representative: Pursiainen, Timo Pekka et al Tampereen Patenttitoimisto Oy Hermiankatu 1 B 33720 Tampere 33720 Tampere (FI)