Material Composition | Multi-layer co-extruded structure (e.g., PP/EVOH/PP or PET/AL/PE), with an inner heat-sealable layer and EVOH/aluminum barrier for leak prevention. | |
Leak-Proof Design | Precision heat-sealing layer (e.g., LLDPE) ensures airtight seals on cup rims, preventing spillage during transport or handling. Compatible with automatic sealers . | |
Temperature Resistance | Stable performance across -40°C (freezing) to 80°C (hot-fill), maintaining seal integrity and flexibility without brittleness or delamination . | |
Barrier Properties | Ultra-low OTR (≤0.8 cm³/m²·day) and WVTR (≤1.5 g/m²·day) protect against oxidation and moisture, preserving bubble tea freshness . | |
Optical Performance | High transparency (≥90% visible light transmittance) with optional anti-fog coating to maintain clarity in icy beverages . | |
Safety Compliance | FDA 21 CFR, EU 10/2011, and LFGB certified for direct food contact; BPA-free and migration-tested for heavy metals . | |
Processing Features | Compatible with VFFS machines and automated cup sealers; heat-sealable at 120–160°C with fast curing time (≤2 sec) . | |