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PTP Aluminum Foil
Product name: PTP aluminum foil
Application scenarios: food packaging, pharmaceutical packaging, cosmetic packaging, etc.
MOQ: 5Ton
Delivery date: 7-35 business days
Contact us: office@dongmjd.com
Description
PTP Aluminum Foil stands for Press-Through-Packaging Aluminum Foil. It's a specialized laminated material primarily used in the pharmaceutical industry to create blister packs for tablets, capsules, pills, and other solid-dose medications.
Here's a breakdown of its key features and structure:
Key Components & Structure (Typical Layers):
Base Layer: Pure aluminum foil (usually 20-25μm thick). Provides excellent:
Barrier Properties: Impermeable to moisture, oxygen, gases, light, and microbes – crucial for drug stability and shelf life.
Strength & Formability: Allows for deep drawing into blister cavities.
Printing Layer (Optional): Allows for branding, dosage information, batch numbers, and expiry dates.
Protective Lacquer/Varnish: Coats the printed side to prevent ink scuffing or reaction with the adhesive.
Heat-Seal Lacquer/Adhesive Layer: Applied to the side facing the blister cavity (usually PVC/PVDC). This layer melts under heat and pressure during the blister sealing process, bonding the foil securely to the plastic blister base.
Superior Barrier Protection: Essential for sensitive medications.
Product Protection: Shields contents from environmental factors.
Tamper Evidence: Any puncture or tear is usually visible.
Dosing Accuracy: Contains individual doses securely.
Ease of Use: Simple "press-through" mechanism for patients.
Compatibility: Works well with common blister base materials like PVC, PVDC, PCTFE, or Aclar.
Printability: Allows clear product identification and regulatory information.
Aluminum Thickness:
Typically 20μm, 25μm (most common), up to 40μm for very demanding barrier needs.
Total Thickness:
Includes all laminated layers (e.g., ~30-50μm total).
Heat Seal Strength:
Critical to ensure the seal integrity during the product's shelf life and easy push-through by the user.
Pinhole Resistance:
High-quality foil is virtually pinhole-free.
I. Core Specifications
| Parameter | Typical Range | Notes |
|---|---|---|
| Base Foil Thickness | 20μm, 25μm (standard), 30μm, 40μm | Thickness↑ → Barrier↑, Cost↑ (25μm most common in pharma) |
| Total Thickness (coated) | 30μm – 55μm | Includes printing/sealing layers |
| Width Range | 100mm – 1600mm | Customizable for packaging equipment |
| Core Inner Diameter | 76mm (3"), 152mm (6") | Compatible with high-speed blister machines |
| Max. Roll Diameter | ≤ 650mm | Limited by logistics/equipment capacity |
| Heat Seal Strength | 8 – 15 N/15mm | Complies with ISO 11607 medical packaging standard |
| Pinhole Standard | ≤ 1/m² (20μm base foil) | Verified by darkroom light transmission test |
| Printing Compatibility | CMYK/spot colors/QR codes | Resolution ≥ 200dpi, meets GMP traceability requirements |
2. Functional Coatings
| Coating Type | Primary Composition | Compliance |
|---|---|---|
| Heat Seal Layer | Modified PP (mPP), PVC | USP <661>, EU 10/2011 |
| Print Protective | Nitrocellulose/polyamide resin | Solvent-free (GC-MS verified) |
| Adhesive Layer | Water-based PU or acrylate | Benzene-free (VOC ≤5ppm) |
3.Alloys:
| Application | Alloy | Temper | Thickness(mm) | Width(mm) | Typical Products |
| PTP Drug Packaging Aluminum Foil | 8011 aluminum foil | H18 | 0.016-0.5 | 200-1600 | Capsules cover plate, etc. |
| Blister Medicine Aluminum Foil | 8021 aluminum foil | O | 0.04-0.065 | 200-1600 | blister packaging, etc. |
| Pharmaceutical Packaging Aluminum Foil | 8021 aluminum foil, 8079 aluminum foil |
O | 0.016-0.2 | 200-1600 | high-end medicine packaging |
| Drug Cover Aluminum Foil | 8011 aluminum foil | H14, H16 | 0.016-0.5 | 200-1600 | oral liquid aluminum plastic composite cap , infusion bottle aluminum plastic cap, etc. |
| Medicinal Aluminum Foil Gasket | 1060 aluminum foil | O, H18 | 0.014-0.2 | 200-1600 | drug packaging gasket |
FAQ
Q: What thickness options are available for pharmaceutical blister foil?
A: Standard thicknesses range from 20μm to 40μm, with 25μm being the most common for solid-dose applications
Q: How do you ensure regulatory compliance?
A: Our foils comply with FDA 21 CFR 177.1390, EU 10/2011, and are manufactured under ISO 15378 GMP standards.
Q: What is the minimum order quantity (MOQ)?
A: Standard product MOQ is 500kg. Custom formulations require 3+ metric tons per SKU.
Q: How are foils protected during shipping?
A: Rolls are vacuum-sealed in barrier film, packed in humidity-controlled containers with desiccant, and monitored via data loggers.
Q: Can I get samples before bulk orders?
A: Free sample rolls (≤20m) are available for technical testing. Custom samples incur tooling fees.
Q: What heat-seal materials do you offer?
A: We provide PVC, PVC/PVDC, PP, and specialty polymer sealants validated for drug compatibility per USP <661>.
Q: How is pinhole quality controlled?
A: 100% of foil undergoes automated high-intensity light inspection at 2,000 lux to detect ≥40μm pinholes.
Q: What printing technologies are supported?
A: We accommodate flexographic, offset, and digital printing with resolutions up to 300 LPI for variable data.
Q: Do you offer child-resistant (CR) foils?
A: Yes, our Peel&Press™ CR foil meets ASTM D3475 and ISO 8317 standards.
Q: What shelf life can I expect for unopened rolls?
A: When stored at <25°C/60% RH, our foils maintain performance for 24 months from production date.
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