Aluminum foil laminated with PVC and Nylon (NY) layers has emerged as a critical packaging solution in the pharmaceutical industry. The Cold Formed Aluminum Foil with PVC/NY Structure offers a robust and innovative approach to packaging that ensures product safety, durability, and compliance with regulatory standards.
Product Description
Cold formed aluminum foil laminated with PVC/NY is a multilayer composite roll where:
- The Aluminum foil provides an ultimate moisture, oxygen, and light barrier, preventing product degradation.
- The PVC layer offers excellent thermoformability and sealing properties.
- The Nylon (NY) layer provides puncture resistance, toughness, and further mechanical durability.
Features
| Feature | Description |
|---|---|
| Cold Formed Foil | Cold forming method increases foil elongation and forming ability without compromising barrier integrity. |
| Multi-layer Laminated Structure | Combination of Alu foil / PVC / NY layers jointly providing robustness and leak-proof qualities. |
| Excellent Barrier Properties | High protection against moisture, gases, and light - preserving drug efficacy. |
| Superior Mechanical Strength | Nylon component enables resistance to pinholes, punctures, and abrasions during processing. |
| Thermoformable PVC Layer | Easy thermoforming that adapts delicately to the shape of pharmaceutical blisters. |
| Extra Leak Proof Packaging | Optimized seals enable leak insulation far beyond conventional solutions prevalent in pharma packs. |
Chemical Composition of Aluminum Foil Layer
The aluminum foil used undergoes precise alloy selection and processing to ensure mechanical strength and corrosion resistance.
| Element | Typical Composition (wt%) | Role |
|---|---|---|
| Al | 98.5 - 99.5 | Base metal offering barrier and ductility |
| Fe | 0.4 - 0.8 | Provides strength through solid solution |
| Si | 0.2 - 0.6 | Improves foil forming ability |
| Cu | ≤ 0.05 | Minimizes difficulty in processing, maintains corrosion resistance |
| Mn | ≤ 0.1 | Provides moderate strength and toughness |
| Others | ≤ 0.01 | Traces Residuals |
Technical Specifications
The following table summarizes the performance parameters typically guaranteed for pharmaceutical packaging applications:
| Parameter | Specification | Typical Value | Unit |
|---|---|---|---|
| Aluminum Foil Thickness | 20-40 | 30 | Microns |
| PVC Layer Thickness | 60 - 80 | 70 | Microns |
| Nylon (NY) Layer Thickness | 20 - 35 | 25 | Microns |
| Total Laminated Foil Thickness | - | 130 - 140 | Microns |
| Tensile Strength (Alu-Foil) | >90 | 110 | MPa |
| Puncture Resistance (NY layer) | > 8 | 9 | Newton |
| Oxygen Transmission Rate (OTR) | < 0.01 | 0.008 | cc/m²/day |
| Water Vapor Transmission Rate (WVTR) | <0.005 | 0.003 | g/m²/day |
| Seal Strength | > 1.5 | 1.8 | N/cm |
| Elongation at break (Alu-Foil) | 20 - 30 % | 25 | % |
Performance Analysis
Barrier Integrity: The inert aluminum foil layer is virtually impermeable to gases, moisture, odors, and light, pivotal to safeguarding sensitive pharmaceutical ingredients such as hormones, antibiotics, and active molecules with strict stability requirements.
Cold Forming Ability: Fy PVC layer, combined with highly ductile aluminum suitable for cold form processing, provides easy blister/strip formation matching complex cavity shapes while maintaining puncture resistance.
Sealability: The PVClayer’s excellent sealing characteristics prevent medium penetration and secondary contamination during storage, transportation, and handling – avoiding costly recalls due to package failures.
Leak Proof Advantage: Additional Nylon reinforcement grants mechanical resistance during tertiary handling resulting in products secured from leakage or accidental rupture caused by infrastructure or transport roughness.
Applications in Pharmaceuticals
The cold-formed alu foil with PVC/NY is broadly implemented across diverse pharmaceutical fields:
| Application Type | Degree of Use | Benefits |
|---|---|---|
| Blister Packaging of Tablets | Extensive | Customized pocket forming, leak/modal moisture strict packaging useful |
| Liquid Vials and Ampoules | Specialized | Supports integrity preservation in liquid-based pharmaceutical packs |
| Injectable Pharmaceutical Packs | Selective Implementation | Provides shatterproof and leak resistant combinated strip solutions |
| Nutraceutical Packaging | Growing Use | Improved integrity preserving vitamin and supplement potency |
| Benefit | Explanation |
|---|---|
| Product Shelf Life Extension | Air and moisture tight sealing prevents chemical degradation |
| Enhanced Product Safety | Contamination-free sealing eliminates medium intrusion |
| Formability & Efficiency | Easy blister mold deformation allowing innovative pharma form factors |
| Mechanical Resilience | Combo layer HD punctures proofing eliminates leaks and weak spots |
| Regulations Compliance Support | Meeting global pharma packaging standards (FDA, USP, WHO) |
| Eco-Friendly Options | Aluminum foil can be recyclable depending on recycling ecosystems |
