Material Structure | 3-layer laminated composite: PET (outer rigidity/printability), Aluminum foil (middle barrier), PE (inner heat-sealable layer) | |
Primary Function | Ultra-high oxygen/moisture barrier to prevent oxidation, clumping, and nutrient degradation in milk powder | |
Barrier Performance | OTR ≤0.05 cm³/m²/day, WVTR ≤0.1 g/m²/day; blocks UV light and contaminants | |
Anti-Static Property | Surface resistivity ≤10⁹ Ω/sq to prevent powder adhesion during filling | |
Seal Integrity | Heat-sealable PE layer (130–180°C); seal strength 6–12 N/15mm; compatible with VFFS/HFFS machines | |
Certifications | FDA 21 CFR, EU 10/2011, ISO 22000, REACH, RoHS compliant for food safety | |
Printability | Supports 8–10 color flexographic/gravure printing; glossy finish for branding | |