Q
What is pharmaceutical aluminum foil used for?
Pharmaceutical aluminum foil is primarily used for packaging medicines such as tablets, capsules, and powders. It provides an excellent barrier against moisture, light, and oxygen, ensuring drug stability and extending shelf life.
Q
What is the difference between single-layer and composite pharmaceutical aluminum foil?
Single-layer pharmaceutical aluminum foil is made purely from aluminum and is used for simple sealing or as a base material. Composite pharmaceutical aluminum foil is laminated with plastic films (such as PVC or PE) or paper to combine the barrier properties of aluminum with the flexibility and formability of other materials.
Q
What is PTP aluminum foil in blister packaging?
PTP (Press Through Package) aluminum foil is a type of composite pharmaceutical aluminum foil used in blister packaging. It works together with a plastic blister to individually seal each tablet or capsule, allowing patients to push the medicine through the foil easily for single-dose dispensing.
Q
Why is coated pharmaceutical aluminum foil preferred for certain applications?
Coated pharmaceutical aluminum foil has pharmaceutical-grade adhesives and protective layers applied to its surface. This improves its heat-sealing performance, enhances compatibility with printing inks, and ensures a stronger, more reliable seal — making it ideal for high-precision pharmaceutical packaging requirements.
Q
How does pharmaceutical aluminum foil protect medicines from deterioration?
Pharmaceutical aluminum foil acts as a complete barrier against moisture, oxygen, light, and contaminants. When used as bottle cap gaskets or in blister and pouch packaging, it prevents drugs from absorbing humidity or reacting with environmental elements, thereby maintaining drug efficacy and safety throughout the shelf life.
Q
Can pharmaceutical aluminum foil be used for powder and granule packaging?
Yes. In pouch packaging applications, pharmaceutical aluminum foil serves as the inner barrier layer of composite pouches. This makes it highly suitable for the large-scale packaging of granular preparations and powdered medicines, providing effective protection against moisture and contamination.
