| 摘要 |
A method of producing paper webs coated on both sides includes the following steps: a) indirectly applying a liquid onto the paper web by passing the web through at least one nip formed by a roll and a counterelement, whereafter the web is dried; b) next, directly applying coating mixture at surplus only on one side of the web, whereafter the surplus coating mixture is removed again by use of a doctor element, the web being dried again thereafter; and c) lastly, directly applying coating mixture at surplus only on the other web side, whereafter the surplus coating mixture is removed by use of a doctor, whereafter the web is dried again. In the indirect application of liquid in the nip, or in the nips, either coating mixture to produce so-called MWC papers or a sizing suspension to produce so-called LWC papers is selectively applied.
|
