What is PTP Aluminum Foil?
The formal industry term for PTP aluminum foil is pharmaceutical packaging aluminum foil, also known as blister packaging aluminum foil. As a professional aluminum foil manufacturer, MC Aluminum produces PTP aluminum foil with outstanding barrier properties—moisture-proof, oxygen-resistant, and light-blocking; easy to puncture for convenient medication access; excellent mechanical performance, heat resistance, low-temperature resistance, and corrosion resistance; suitable for high-speed automated packaging; good printability for single-sided or double-sided printing; and strong sealing performance.
PTP aluminum foil typically consists of multiple layers: protective layer (OP), outer printing layer, aluminum foil substrate (AL), inner printing layer, adhesive (VC), etc. The aluminum foil substrate is usually made from 8011-H18 temper aluminum foil or 8011-O temper aluminum foil, which combines high ductility (easy to stamp) with strength (tear resistance). Thickness ranges from 0.016-0.04 mm.
One side of PTP aluminum foil is usually coated with a heat-seal layer to bond with PVC, PVDC, or alu-alu blister film; the other side can be printed with brand information, dosage instructions, or safety warnings.
Why PTP Aluminum Foil is Ideal for Capsule Packaging
1. Excellent Moisture & Oxygen Barrier
Capsules are highly sensitive to humidity and oxidation. PTP aluminum foil provides near-total protection against water vapor, oxygen, and UV light, preserving the capsule’s active ingredients and preventing quality degradation.
2. High Mechanical Strength
The foil withstands the pressure and vibrations of manufacturing, transportation, and handling, resisting tearing to ensure capsules remain intact before use.
3. Easy Push-Through Opening
Its engineered strength allows consumers to easily press through the foil, making it suitable for elderly users or those with weaker hand strength.
4. Printable for Branding & Compliance
PTP foil surfaces can be printed with logos, dosage instructions, batch numbers, and anti-counterfeiting marks, serving both marketing and regulatory needs.
5. Wide Temperature Resistance
Withstands -40°C to 200°C, accommodating cold chain logistics and high-temperature sterilization.
Common Specifications for Capsule Packaging PTP Aluminum Foil
| Alloy | 8011-H18 or 8021-O |
| Thickness | 0.02 mm - 0.03 mm |
| 0.02 mm – 0.03 mm | 60 mm - 800 mm (customizable) |
| Length | customizable |
| Coatings | heat-seal coating, primer, protective lacquer |
| Printing | up to 4 colors, gravure printing |
| Core Diameter | 76 mm or 152 mm paper core |
| Barrier Properties | WVTR ≤ 0.1 g/m²·24h, OTR ≈ 0 cm³/m²·24h |
| MOQ | 1-3 tons |
Advantages for Capsule Packaging
1. Unit Dose Protection
Each capsule is individually sealed in its blister, preventing cross-contamination and ensuring precise dosing-especially important for high-potency drugs such as anti-cancer capsules.
2. Anti-Counterfeit & Safety
Supports laser holographic patterns, invisible fluorescent codes, and other anti-counterfeiting measures, reducing counterfeit risk by up to 80% compared to traditional single-color printing.
3. Improved Patient Compliance
Transparent blister designs show remaining doses; printed dates remind patients of dosing schedules, reducing medication errors among elderly patients by 30%.
PTP Aluminum Foil Production Process
Producing PTP aluminum foil is a precise, standardized process to ensure product quality and performance. The core steps include:
Raw Material Selection – High-purity aluminum foil with uniform thickness is chosen as the base material.
Coating Treatment – Special coatings are applied to one or both sides of the foil. The side sealing with the plastic blister receives a heat-seal coating (e.g., PVC coating), while the other may have a protective or printable layer.
Printing & Varnishing – The foil is printed according to pharmaceutical packaging designs, adding product information, branding, etc. A protective varnish may be applied to prevent abrasion of printed content.
Slitting & Packaging – Finished jumbo rolls are slit into narrow rolls to fit production lines, then securely packaged to avoid damage or contamination during transport.
MC Aluminum is a raw material manufacturer for PTP pharmaceutical packaging aluminum foil. Our 8011, 8021, and 1060 aluminum foils are free from black streaks, roll marks, pinholes, and other defects. With large-scale daily output, fast delivery times, and export capabilities, customers can order with full confidence.