The BVG-Super-Glue is a discontinuous process (batch - system), aimed to produce adhesives by controlling carrier and final viscosities. Viscosity of the glue to be produced, is measured and regulated online, during the complete batch - cycle, by means of a process viscosimeter. In first step, carrier starch is produced from native starch, by addition of caustic (NaOH). The amount of caustic added in a given time, regulates the carrier viscosity. For each formulation in the recepie manager, there is a specific carrier viscosity listed. This relationship is the background for the name “VCC - Process” (V = Viscosity; C = Controlled; C = Carrier).

First water and primary starch (carrier starch) are added to the mixing tank, then caustic is added. By reaching the carrier viscosity limit, some secondary water is admitted. This causes a reduction of the viscosity and alkalinity and prevents starch particles from further swelling. The viscosity increase is stopped. After addition of secondary water, the addition of secondary starch (glue starch) follows. Through this, viscosity rises clearly again. Addition of Borax finally follows with a further increase in viscosity.

After adding all components to the mixing tank, the agitator starts shearing down the product. Viscosity is lowered slowly by shear, until reaching a given set point. This is the final viscosity, at a given formulation, which will be constant from batch to batch. The product is now finished and will be discharged from the mixing tank and stored in a holding tank for further use.

On the VCC - Process various adhesives can be produced reproducibly, with different viscosities. Each glue is based on a specific carrier and final viscosity. All set points are listed in the recipe manager of the DCS. Due to these features, arbitrary quantities of wash water and flexprint effluent may be used.

Beside the VCC - Process, all other common methods for preparation of adhesives may be used (i.e Stein Hall, Minocar, No Carrier, etc.).