PTP (Press Through Pack) блистерното фолио е вид фармацевтичен опаковъчен материал, използван за опаковане на твърди орални лекарствени форми, като таблетки и капсули. It consists of multiple layers that serve different purposes. The typical structure of PTP блистерно фолио includes:

Protective Layer: The topmost layer of the foil is a protective layer, often made of polyester (PET). It provides protection against external factors such as moisture, светлина, и кислород.

Printing Ink: A layer of printing ink may be applied on top of the protective layer. It can contain important information such as product name, дозировка, и подробности за производителя.

Алуминиев слой от фолио: The aluminum foil layer is the core component of PTP blister foil. It provides excellent barrier properties, effectively protecting the medication from moisture, светлина, газове, и замърсители. Aluminum foil is typically around 20-30 микрони дебели.

Топлинен уплътнител лак: The aluminum foil layer is coated with a heat seal lacquer on the inner side. This lacquer allows the foil to be heat-sealed to the blister packaging during the packaging process. It ensures the integrity and tamper-evident properties of the blister pack.

PVC или PVDC Слой: В някои случаи, слой от поливинилхлорид (PVC) или поливинилиден хлорид (PVDC) may be present on the bottom side of the aluminum foil. PVC or PVDC provides additional barrier properties and enhances the stability of the packaged medication.

It’s important to note that the specific structure of PTP blister foil can vary depending on the manufacturer, product requirements, and regional regulations. Different combinations of materials may be used to achieve the desired barrier properties, за печат, and ease of use.