The Classification of Pharmaceutical Aluminum Foil

Table of Contents

Pharmaceutical aluminum foil holds a significant place in the field of medical packaging, as it not only protects the quality and effectiveness of medicines but also extends their shelf life. Depending on different uses and performance requirements, pharmaceutical aluminum foil can be classified into several types:

1. Blister Foil (PTP Aluminum Foil)

Blister foil, also known as PTP (press through packaging) aluminum foil, is the most common type of aluminum foil used in pharmaceutical packaging. Its characteristics include:

– Moisture Resistance: Effectively prevents moisture from entering the packaging, keeping the medicine dry.

– Light Blocking: Protects medicines from light exposure, especially those sensitive to light.

– Sealing: Offers excellent sealing properties, preventing the medicine from getting damp, oxidized, or contaminated.

PTP aluminum foil is typically used for packaging solid medicines like tablets and capsules. One side is coated with polyethylene or polyvinyl chloride for heat sealing, while the other side is smooth aluminum foil, suitable for printing medicine information.

2. Cold Forming Foil (Cold-Form Foil)

Cold forming foil, also known as cold-form foil, is mainly used for packaging medicines requiring high barrier properties. Its characteristics include:

– High Barrier: Provides excellent protection against gases, moisture, and light, suitable for medicines with high environmental requirements.

– Durability: Possesses strong mechanical properties, making it resistant to damage from compression.

– Safety: Non-toxic and harmless, meeting safety standards for pharmaceutical packaging.

Cold-form foil is often used for special medicines and high-end drugs such as biological products, antibiotics, and expensive medicines.

3. Aluminum Plastic Composite Film

Aluminum plastic composite film is a packaging material made by laminating aluminum foil with plastic film. Its main features are:

– Flexibility: More flexible than single aluminum foil, making it suitable for packaging medicines of various shapes.

– Multilayer Structure: Typically composed of multiple layers, offering the barrier properties of aluminum foil and the tear resistance and heat sealability of plastic film.

– Cost-Effective: Lower production costs, making it suitable for large-scale production.

Aluminum plastic composite film is commonly used for packaging liquid medicines, powder medicines, and other products requiring flexible packaging.

4. Honeycomb Aluminum Foil

Honeycomb aluminum foil is a new type of pharmaceutical packaging material named after its unique honeycomb structure. Its main features include:

– High Strength: The honeycomb structure provides high strength and rigidity, making it resistant to deformation under significant external force.

– Lightweight: Lightweight, easy to transport and handle, reducing the amount of packaging material needed.

– Excellent Cushioning: The honeycomb structure offers excellent cushioning properties, effectively protecting medicines from vibration and impact.

Honeycomb aluminum foil is typically used for packaging medicines that require additional protection, such as injectables, liquid medicines, and some expensive medicines.


Pharmaceutical aluminum foil, as an essential packaging material, is widely used for various medicines due to its superior properties and diverse applications. Depending on the requirements, pharmaceutical aluminum foil can be classified into blister foil, cold forming foil, aluminum plastic composite film, and honeycomb aluminum foil, each with its unique advantages and application areas. With continuous technological advancements, pharmaceutical aluminum foil will play an increasingly important role in the medical packaging field, further ensuring the quality and safety of medicines.

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