PLA Heat Seal Film for Milk Tea Cup Sealing Compostable Heat-Resistant 20-40μm 1. Basic Information This PLA heat seal film is designed for sealing milk tea cups and beverage cups. It is made from corn-based polylactic acid (PLA) through multi-layer co-extrusion or biaxial orientation. The film offers excellent heat seal strength, heat resistance, and sealing performance, withstanding hot beverage temperatures without leakage after sealing. It is certified compostable to EN