Statistical Process Control of Starch Viscosity, Technical Information Paper TIP 0304-15 (2002)
Control of the viscosity of a starch-based corrugating adhesive is critical to controlling the operation of the corrugating process and to obtaining good corrugator runnability. A viscosity that is too high will be difficult to pump, will not flow properly in the pan, and will not adequately penetrate the linerboard and medium surfaces. A viscosity that is too low will not be picked up properly by the applicator rolls and will penetrate the linerboard and medium surfaces too quickly. To obtain a true picture of the state of control over the starch preparation and corrugating process, statistical process control techniques should be employed.