| 摘要 |
In the method for precalendering a paper or paperboard web (W) a web that ha s undergone earlier dewatering stages is calendered to attain a suitable surfa ce for the coating process. The web is calendered (C) one-sidedly in such a manner that the absorption level of the second side (W2) of the web entering the calendering, which is higher than the absorption level of the first side (W1), is reduced in the calendering nearly to the same level or at least to the same level with the first side (W1).
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