(19)
(11) EP 1 160 377 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
12.06.2002 Bulletin 2002/24

(43) Date of publication A2:
05.12.2001 Bulletin 2001/49

(21) Application number: 01660105.6

(22) Date of filing: 29.05.2001
(51) International Patent Classification (IPC)7: D21F 5/02, D21F 5/04
(84) Designated Contracting States:
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
Designated Extension States:
AL LT LV MK RO SI

(30) Priority: 02.06.2000 FI 20001332
27.09.2000 FI 20002122

(71) Applicant: Metso Paper, Inc.
00130 Helsinki (FI)

(72) Inventors:
  • Kaihovirta, Juha
    40630 Jyväskylä (FI)
  • Vestola, Juhani
    40630 Jyväskylä (FI)
  • Kuhasalo, Antti
    40530 Jyväskylä (FI)

(74) Representative: Lahti, Heikki et al
Forssén & Salomaa Oy Yrjönkatu 30
00100 Helsinki
00100 Helsinki (FI)

   


(54) Drying section with a coated drying cylinder


(57) The invention relates to paper machines. In particular, the invention concerns an arrangement for improving the beginning of the drying section joined to closed web transfer between the press section and the drying section in a paper machine. The invention is characterised in that in order to achieve less fouling of the drying cylinder (61), that is, less formation of fluff, to achieve easier doctorability and better doctoring tolerance of the drying cylinder surface in the drying section, the surface of at least the first drying cylinder has a coating (60), which includes a thin preferably hard layer (602) of ceramic material and/or metal ceramic and/or metal, to which the web will adhere weakly, and/or another softer material (603), to which the web will adhere weakly, is absorbed into the drying cylinder surface, whereby separation of the web (W) from the surface of the drying cylinder (61) is improved.






Search report