Product Description:
Multi-Layer Structure
PVC Layer (Outer): Provides rigidity, clarity, and thermoforming capability for precise blister cavity shaping.
PE Layer (Middle): Enhances flexibility and impact resistance, preventing cracking during high-speed packaging.
PVDC Layer (Inner): Delivers ultra-high barrier properties against moisture (<0.5 g/m²/day) and oxygen (<10 cc/m²/day).
Key Benefits
Drug Compatibility: Resistant to acidic/alkaline drug formulations.
Child-Resistant Options: Compatible with peelable or push-through aluminum foil laminates.
Regulatory Compliance: Meets FDA 21 CFR, EU GMP, and ICH Q1A stability guidelines.
Sustainability: Recyclable and available with bio-based PE alternatives.
Manufacturing Process & Technology
Resin Compounding: High-purity PVC, PE, and PVDC granules are blended with stabilizers (e.g., calcium-zinc) and slip agents.
Co-Extrusion: Multi-layer blown film extrusion at controlled temperatures (PVC: 160–180°C; PE: 140–160°C; PVDC: 190–210°C).
Biaxial Orientation
Stretched in MD/TD directions (3:1 ratio) to enhance tensile strength (>25 MPa) and puncture resistance.
PVDC Coating
Aqueous PVDC dispersion is applied via precision slot-die coating, followed by IR drying for uniform barrier performance.
Quality Assurance
Thickness Testing: Laser sensors ensure uniformity (±0.002 mm tolerance).
Seal Strength Testing: Heat-seal integrity validated at 150–160°C with peel force >4 N/15mm.
Microbial Control: Films undergo gamma irradiation (25 kGy) for sterilization.
Frequently Asked Questions (FAQ)
1.Q: What is the maximum operating speed for blister packaging machines?
A: Compatible with speeds up to 600 blisters/minute (e.g., Uhlmann, Bosch lines).
2. Q: Does the film support cold-forming processes?
A: No. This film is optimized for thermoforming. For cold-forming, aluminum-based films are recommended.
3.Q: Can you provide anti-static film variants?
A: Yes. Anti-static coatings (surface resistivity <10¹¹ Ω/sq) are available for sensitive APIs.
4.Q: How is film recyclability achieved?
A: PE and PVDC layers are designed for mechanical recycling. We also offer take-back programs for industrial reuse.
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