(19)

(11)

EP 2 646 620 A1

(12)

(43) Date of publication: 09.10.2013 Bulletin 2013/41 (21) Application number: 11813542.5 (22) Date of filing: 25.11.2011

(51) International Patent Classification (IPC):  D21H 23/50(2006.01) (86) International application number: PCT/FI2011/051038 (87) International publication number: WO 2012/072873 (07.06.2012 Gazette 2012/23)

(84) Designated Contracting States: AL 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 RS SE SI SK SM TR (30) Priority: 01.12.2010 FI 20106263 (71) Applicant: Metso Paper, Inc. 00130 Helsinki (FI)	(72) Inventor: TYNKKYNEN, Topi FI-01520 Vantaa (FI) (74) Representative: Espatent Oy  Kaivokatu 10 D 00100 Helsinki 00100 Helsinki (FI)