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