OP/ALU/VC Aluminum Blister Lidding Foil

OP/ALU/VC aluminum lidding foil is a composite material specifically designed for pharmaceutical blister packaging. Sa structure est constituée d'une couche protectrice (PO), une couche d'aluminium en aluminium (ALU), and an adhesive layer (VC). OP/ALU/VC aluminum foil possesses high barrier properties, thermoscellabilité, easy printability, et bonnes propriétés mécaniques, effectively protecting the contents and meeting the needs of automated packaging.

Structural composition of OP/ALU/VC aluminum blister lidding foil:

– PO (OPA) Layer:

Typically made of polyester film (comme animal de compagnie), with a thickness of 25-30μm. It provides surface protection with good mechanical strength and abrasion resistance, preventing scratches or contamination of the aluminum foil layer. It also serves as a printing substrate, supporting high-precision pattern and text printing.

– ALU (Al) Layer:

The aluminum foil layer, made of high-purity aluminum foil such as 8011 alliage, with a thickness of generally 20-50μm. It is the core barrier layer. Le papier d'aluminium possède d'excellentes propriétés barrières, bloquant efficacement l'oxygène, humidité, Et léger, protecting the medicine from external environmental influences and extending its shelf life.

– Couche VC:

This is a heat-sealable coating, typically using polyurethane adhesive, with a coating amount of approximately 4±0.5g/m². It is heat-sealed with rigid plastic sheets such as PVC and PVDC to form a sealed package. C'est non toxique, inodore, and meets food and pharmaceutical hygiene standards; the coating is uniform, and the heat-sealing strength is high, ensuring packaging airtightness.

– Caractéristiques:

Width generally does not exceed 800mm, total thickness is 0.09-0.10mm, and inner diameter is 76mm.

Core performance of OP/ALU/VC aluminum lidding foil:

– Propriétés barrière élevées:

The aluminum foil layer has extremely low permeability to oxygen and water vapor (par exemple., oxygen permeability ≤0.5cm³/(m² · 24h · 0,1 MPa)), suitable for packaging humidity- and oxygen-sensitive pharmaceuticals (comme les antibiotiques et les vitamines) and foods (such as chocolate and candy).

– Heat-sealing capability:

The VC layer and PVC / PVDC rigid sheet are heat-sealed at 120-180℃ to form a strong bond with a sealing strength ≥8N/15mm, preventing leakage or contamination of the contents.

– Imprimabilité:

The OP layer of Feuille d'aluminium PTP supports monochrome and multicolor printing, allowing for the printing of drug information, logos de marque, or anti-counterfeiting patterns, enhancing packaging aesthetics and readability.

– Propriétés mécaniques:

The aluminum foil layer provides the material with good tensile strength and puncture resistance, adapting to high-speed automated packaging equipment and reducing breakage rates during packaging.

OP/ALU/VC aluminum lidding foil offers high barrier properties, bloque efficacement la lumière, humidité, and oxygen, protecting drug quality; it has good heat-sealing properties with PVC, facilitating heat sealing with PVC blister packs; it also features wrinkle resistance and antibacterial properties, providing excellent protection for drugs. Primarily used in pharmaceutical packaging such as capsules, pilules, and tablets, it is a commonly used capping material in pharmaceutical blister packaging (PTP). Through heat sealing with PVC blister packs, the drug is encapsulated within the blister pack, achieving both protection and convenient access.