Pharmaceutical blister packaging coating process

Pharmaceutical blister packs, also known as PTP (Press Through Pack aging), are based on industrial pure aluminum foils. On the PTP aluminum foil applicator for pharmaceutical use, gravure printing techniques and roll coating methods are used to print text patterns on aluminum foils. Coated with a protective agent and coated with adhesive layer on the other side of the aluminum foil.

The brief process flow is: aluminum foil unwinding → gravure printing → drying → coating protective layer → drying → coating adhesive layer → drying → aluminum foil winding.

In the entire production process, the surface quality of the gravure printing text pattern and the heat sealing strength to be achieved by the adhesive layer and the quality control during the coating operation are needed to be grasped in the process operation.