The Corrugator for Paperboard

The equipment is operated at 162-182°C, which is obtained using high-pressure steam of 965-1240 kPa (140-180 psi). 

The carrier portion of the corrugator adhesive provides the viscosity needed to hold the raw starch in suspension and to retain water during application. Heating and stirring of the carrier and of the final product need to be carefully controlled in order to maintain the correct viscosity. In the majority of corrugator formulations, starch solids range from 18% to 21%, but may increase to 30% for specialty applications. About 15-17% of the total starch is used as carrier. 

---