TYAML - Yet Another Multicolumn Layout for TYPO3

Bottom spray coating

The innovative solution for making particles functional

The advantage in bottom spray coating (Wurster process) is that the coating is very even and results in an optimal film quality. The method is suitable particularly for adding specific functions to particles – such as to achieve a defined and reproducible release profile for an active substance by way of the membrane applied. 

In bottom spray coating, spraying is done from below upwards. The spray nozzles are integrated in the flow bed and thus completely surrounded by the product. By combining flow bed and partition, a targeted and controlled movement of the particles can be achieved. This is the requirement for the optimal application of the coating materials to the particles.

The uniform particle retention times in the spray zone thus assure homogeneous film quality and application volume for individual particles. The particle speed in the partition also generates high kinetic energy in the product bed which prevents the particles from sticking together when wet. Thus, very small particles can also be coated without agglomeration.
Since the jet is located in the middle of the product flow and sprays evenly, premature evaporation of the carrier solution is prevented. The result is optimal film quality. For targeting specific functions in your product.

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