COLD-FORMING ALUMINUM FOIL / ALUMINUM ALUMINUM FOIL
Brief introduction:
- Independent for each blister, high barrier against moisture, oxygen, other gases, light and UV rays.
- Used as special packaging materials for the drugs under extreme(high or low temperature) environment.
Main application:
Blister packing for tablets, capsules and etc.
Structures:
OPA 25-30μ/ AL 47-65μ / PVC 60μ
*The following content is generated by AI and is for reference only.
Pharmaceutical cold-forming aluminum-aluminum (Alu-Alu) foil represents a premium tier of packaging material designed to ensure the highest level of protection for sensitive medications. Unlike traditional blister packs that utilize a plastic cavity and an aluminum lidding, cold-forming technology employs a specialized high-barrier aluminum alloy sheet that is mechanically formed into cavities without heat or plasticizers. This unique process creates a hermetic seal with exceptional barrier properties against moisture, oxygen, light, and other environmental contaminants.
The primary application of Alu-Alu cold-forming foil is for highly potent drugs, hygroscopic compounds, and biologic therapies that require strict stability control over extended shelf lives. It is particularly vital for products sensitive to humidity, such as certain antibiotics, hormones, and cancer treatments, where even minor exposure to atmospheric conditions could degrade efficacy or safety. The rigid structure of the formed foil also provides superior physical protection against crushing and puncturing during logistics and handling.
Key considerations when utilizing this material include its specific manufacturing requirements. Cold forming demands precise pressure control and specialized tooling to avoid micro-cracks in the aluminum, which could compromise the seal integrity. Furthermore, opening these blisters requires more force than standard PVC/foil packs, necessitating careful design of the peelable lidding layer to ensure patient usability while maintaining tamper evidence. Regulatory compliance is paramount; materials must meet stringent pharmacopoeia standards regarding extractables and leachables to guarantee no interaction occurs between the metal and the drug product. While offering unmatched preservation capabilities, the cost of production and equipment is higher compared to conventional thermoformed options. Consequently, Alu-Alu cold-forming is reserved for pharmaceuticals where product stability is critical, justifying the investment through reduced waste, extended expiration dates, and enhanced patient safety profiles globally.