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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