TPU (Thermoplastic Polyurethane) bag fabric is a high-performance, flexible, and waterproof material used for durable, eco-friendly bags (backpacks, dry bags, military packs, and more). Unlike PVC or nylon-coated fabrics, TPU offers superior strength, UV resistance, and recyclability.
◆ Applications of TPU Bag Fabric:
✔ Dry Bags (backpacking, kayaking, marine use)
✔ Military & Tactical Backpacks (tear-resistant, waterproof)
✔ Medical & Emergency Bags (blood bags, sterile storage)
✔ Luxury & Eco-Friendly Bags (vegan leather alternative)
✔ Industrial Packaging (chemical-resistant transport bags)
Material Composition
Base Fabric
Polyester (500D–1000D) or nylon (420D–1680D)
Coating
Thermoplastic Polyurethane (TPU) (0.1mm–1.0mm thickness)
Lamination
High-frequency (RF) welded or heat-bonded for airtight seams
Advantages Over PVC & PE-Coated Fabrics
|
Feature |
TPU |
PVC |
PE |
|
Flexibility |
✅ Stays soft in cold |
⚠ Stiffens when cold |
✅ Flexible |
|
Eco-Friendliness |
✅ Recyclable, non-toxic |
⚠ Contains chlorine |
✅ Recyclable |
|
UV Resistance |
✅ Excellent (2000+ hrs QUV) |
⚠ Requires stabilizers |
⚠ Poor |
|
Abrasion Resistance |
⭐⭐⭐⭐ |
⭐⭐⭐ |
⭐⭐ |
|
Waterproofness |
100% (no leaks) |
100% |
100% (but weaker seams) |
Technical Specifications
|
Property |
Value |
Test Standard |
|
Tensile Strength |
≥ 3000/3000N/5cm |
ISO 1421 |
|
Tear Resistance |
≥ 100N |
ISO 4674 |
|
Peel Strength (Seams) |
≥ 50N/cm |
DIN 53357 |
|
Water Pressure Resistance |
≥ 10,000mm H₂O |
ISO 811 |
|
Operating Temperature |
-40°C to +80°C |
- |
Application Scenarios
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