Drying method for paper or cardboard comprises adding steam to the hot air system in the dryer section of the production machine
摘要
<p>Drying method for paper or cardboard comprises adding steam to the hot air system in the dryer section of the production machine. An independent claim is included for machines for producing paper and cardboard with a dryer section which can be operated using the method. Addition of steam is controlled so that it acts on specific zones of the web.</p>
