| Material Composition |
Multi-layer co-extruded structure (e.g., PA/EVOH/PE, PET/AL/PE) with EVOH or aluminum foil as the primary barrier layer
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| Barrier Properties |
- OTR (Oxygen Transmission Rate): ≤0.5 cm³/m²·day (23°C, 0% RH)
- WVTR (Water Vapor Transmission Rate): ≤1.0 g/m²·day (38°C, 90% RH)
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| Functional Performance |
- Temperature Resistance: -40°C to 121°C (suitable for freezing, retorting, and hot-filling)
- Vacuum Compatibility: Maintains seal integrity under negative pressure
- Puncture Resistance: **≥30 N** (protects against sharp food contents)
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| Mechanical Strength |
- Tensile Strength: **≥150 MPa (MD), ≥120 MPa (TD)
- Elongation at Break: ≥80%**
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| Safety & Compliance |
Complies with FDA 21 CFR, EU 10/2011, ISO 22000, and RoHS for direct food contact
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| Processing Features |
- Heat Sealability: Seals at 130–160°C (PE layer; VFFS machine compatible)
- Printability: Corona-treated surface supports high-resolution flexo/gravure printing
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