Clear Rigid PVC Film for Pharmaceutical Packing

Clear rigid PVC film (polyvinyl chloride film) is a widely used material for pharmaceutical packaging. Its excellent physical properties and strict regulatory compliance have earned it a significant position in the pharmaceutical industry. PVC film is the mainstream material for pharmaceutical blister packaging, accounting for over 60% of the market.

Core Parameters of Clear Rigid PVC Film:

– Thickness and Specifications:

Common thicknesses range from 0.20-0.45mm, and widths range from 75-1300mm. Customizable options include transparent, translucent, or tinted (e.g., blue, amber).

– Physical Properties:

High transparency and gloss: Ensures visual inspection of pharmaceuticals and facilitates identification of changes in their appearance.

Mechanical Strength: Biaxial stretching (e.g., a stretch ratio of 3.2-3.5x in the longitudinal direction and 3-5x in the transverse direction) significantly improves tensile strength (≥44MPa) and impact resistance, meeting the molding requirements of blister packaging.

– Chemical Stability:

Resistant to pharmaceutical corrosion, it is suitable for a variety of dosage forms, including tablets, capsules, and injection trays. Optimized Composite Structure: When laminated with materials such as PVDC and PE, barrier properties (moisture and oxygen resistance) are significantly enhanced, extending the shelf life of pharmaceuticals.

Key features and advantages of transparent rigid PVC film include:

1. Excellent Physical Properties

– High Transparency:

PVC film boasts a light transmittance exceeding 85%, clearly displaying the appearance of pharmaceuticals and facilitating consumer identification.

– High Mechanical Strength:

Excellent tensile strength and toughness make it resistant to breakage, effectively protecting pharmaceuticals from impact during transportation and storage.

– Good Barrier Properties:

Basic PVC rigid sheet offers average water vapor barrier properties, but when laminated with PVDC or aluminum foil, the water vapor transmission rate can be reduced to <0.5g/m²/24h, meeting pharmaceutical moisture-proofing requirements.

2. Strong Processing Flexibility

– Excellent Thermoformability:

Hot pressing allows precise adaptation to tablet/capsule dimensions, reducing friction during movement.

– Proven Lamination Process:

When laminated with materials such as aluminum foil and PVDC, rigid PVC film can create high-barrier, light-shielding blister packaging (PTP), suitable for photosensitive and hygroscopic drugs. Excellent Printing Performance: The smooth surface supports clear printing of drug information and anti-counterfeiting labels.

3. Highly Cost-Effective

– Low Raw Material Cost:

Compared to materials like PET and PVDC, PVC film is more affordable, making it suitable for large-scale production.

– Mature Processing:

Mature processing technologies such as extrusion and calendering offer high production efficiency, further reducing costs.

Typical Applications of Clear Rigid PVC Film:

– Blister packaging:

Direct contact with the drug provides a physical barrier to prevent contamination and deterioration.

– Printing and Labeling:

The smooth surface supports offset printing, meeting drug information labeling requirements.

– Special Applications:

For example, PVC/PVDC/PE composite film is used for high-humidity or easily oxidized drugs (such as antibiotics) to ensure stability.

In the pharmaceutical packaging industry, clear rigid PVC film is commonly used in trays, blister packs, and other packaging formats, effectively protecting drug quality and safety.