EVp web stabilizer

supports the sheet from the press to the dryer section

Between the press and the drying sections of a paper machine, there is normally a long unsupported sheet draw. Moving surfaces such as felts, fabrics, rolls and the web create considerable air flows and pressure differences which cause sheet flutter.

By increasing the draw, runnability can be controlled, but high draw can lead to breaks and other problems with sheet width. In addition, the sheet MD/CD strength ratio increases with a negative effect on runnability in printing.

With the use of EVp Web Stabilizer, PM runnability improves. EVp creates a high vacuum level under the dryer fabric which keeps the sheet in contact with the dryer. This means that fewer breaks occur between the press and dryer section. Lower draw means also that there is less chemical pulp needed and that it is easier to achieve strength requirements.