Horizontal forming device consisting of an endless fabric (onto which the fiber suspension impinges) traveling between the breast roll and the couch roll and supported by various elements which dewater the fiber suspension.
Definition source:
EN 9
Context:
On a fourdrinier table, the velocity difference between jet and wire creates shear through the thickness of the stock which further increases fiber orientation in the machine direction and contributes to turbulence, depending on its magnitude. The increased orientation is more marked on the wire side, a major cause of curl in many papers. Consequently, the efflux ratio is often controlled to minimize this effect.
