Product Description:
This high-performance PVC/PE/PVDC film is specifically engineered to meet the most demanding challenges in pharmaceutical blister packaging. It uniquely combines exceptional optical clarity with superior deep-drawing capabilities, enabling the reliable production of complex, multi-cavity, or unusually deep blister designs without sacrificing product visibility or barrier integrity. Ideal for premium and specialty drugs where presentation and precise forming are critical.
Technical Specifications
Structure: Multi-layer co-extruded film. Standard composition: PVC (base layer) / PE (adhesive/tie layer) / PVDC (barrier layer).
Thickness Range: Available from 200 to 350 microns, with specific gauges optimized for depth-of-draw requirements.
Key Performance Data:
Water Vapor Transmission Rate (WVTR): Typically < 0.7 g/m²/day (at 23°C, 85% RH), providing excellent moisture protection.
Oxygen Transmission Rate (OTR): < 20 cm³/m²/day, offering a good barrier against oxidation.
Forming Depth: Capable of achieving draw ratios exceeding 1:3 (depth-to-width), suitable for deep-draw applications.
Haze Value: < 4%, ensuring outstanding glass-like clarity for optimal product inspection and consumer appeal.
Features & Benefits
Exceptional Clarity & Gloss: Provides a brilliant, distortion-free view of the product, enhancing brand perception and allowing for easy visual inspection of contents.
Superior Deep-Draw Performance: Excellent thermoforming characteristics allow for the creation of deep, complex, and multi-compartment blister pockets without webbing, thinning, or rupture.
Benefit: Enables innovative packaging designs for large tablets, multi-dose regimens, or drug-device combinations.
Balanced Barrier Properties: The PVDC layer offers a reliable and consistent barrier against moisture and oxygen, protecting sensitive active ingredients.
Excellent Machineability: Runs smoothly on standard thermoforming blister lines (e.g., Illig, Uhlmann, IMA) at high speeds with consistent sealing performance to standard lidding foils.
Robust Seal Integrity: Ensures strong, hermetic seals with aluminum lidding foils (both push-through and peelable), minimizing leaker risk.
Packaging & Delivery
Standard Format: Film supplied wound on 3-inch (76mm) or 6-inch (152mm) internal diameter cores.
Roll Dimensions: Standard widths: 250mm, 310mm, 400mm. Custom widths available.
Roll Length: Standard lengths of 2000 or 3000 meters per roll. Custom lengths can be accommodated.
Shipping: Rolls are individually wrapped in anti-static polyethylene film, packed in reinforced cardboard boxes, and palletized for secure shipment.
Frequently Asked Questions (FAQ)
Q1: What is the maximum practical drawing depth achievable with this film?
A: While capable of high draw ratios (e.g., >1:3), the optimal depth depends on blister design, machine parameters, and tooling. We recommend a feasibility trial with your specific mold. Our technical team can provide guidance based on similar applications.
Q2: Is this film compatible with child-resistant (CR) lidding foils?
A: Yes, it seals reliably with both standard and child-resistant aluminum lidding foils. We recommend validating the seal strength and opening force with your specific CR foil combination.
Q3: How does the clarity hold up after the thermoforming process?
A: The film is formulated to maintain excellent clarity post-forming with minimal haze increase or distortion, even in deep-drawn areas. This is a key differentiator from standard films.
Q4: Can we print directly on this film?
A: The PVC surface is suitable for high-quality flexographic or offset printing. For the best results, we recommend conducting print trials to confirm adhesion and clarity with your inks.
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