Ultra/High - Barrier Films
Blister Foils / Lidding Foils
Cold Form Blister Foils
Extrusion Laminates
- +91 93197 23685
- info@wahren.in
- Plot No. 57, Sector-155, Noida, Uttar Pradesh – 201301
Wahren Unprinted Blister Foils
Plain (unprinted) aluminium blister lidding foils (NC-free) are high-performance sealing materials designed for pharmaceutical blister packaging, offering exceptional barrier protection, safe chemistry, and consistent sealing performance.
Engineered without nitrocellulose (NC-free), these foils ensure low odour, minimal migration risk, and compliance with stringent pharmaceutical standards, making them ideal for sensitive drug formulations.
Structure
- Protective / Primer Coating (Outer)
Enhances surface stability and handling - Aluminium Foil (Core)
(Typically 20–25 microns)
Provides complete barrier against:- Moisture
- Oxygen
- Light
- Gases & odours
- Heat Seal Lacquer (HSL – Inner Layer)
Ensures reliable sealing with:- PVC
- PVC/PVDC
- PP
Applications
Unprinted Blister Foils are widely used in pharmaceutical blister packaging to seal formed blister cavities containing tablets, capsules, nutraceuticals and other solid dosage forms.
Technical Specification
| Sr. No. | Test Parameters | Unit | Standard Specification |
|---|---|---|---|
| 1 | Aluminium Foil Thickness | Micron | 20 ± 10% |
| 2 | Aluminium Foil GSM | g/m² | 54 – 60 |
| 3 | Heat Seal Coating | g/m² | 5 – 8 |
| 4 | Surface Finish | — | Plain / Unprinted |
| 5 | Seal Strength with PVC / PVDC | N / 15 mm | ≥ 6 |
| 6 | Pin Holes | No./m² | NIL |
| 7 | Barrier Properties | — | Excellent Moisture & Oxygen Barrier |
| 8 | Residual Solvent | mg/m² | As per pharmaceutical standards |
| 9 | Reel Width | mm | As per customer requirement |
| 10 | Core ID | mm | 76 ± 1 mm |
| 11 | Packaging | — | Rolls packed with protective wrapping and edge guards |
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