Three-layer Co-extrusion Foaming

1. Material composition: Bio-based PLA as the core raw material, derived from renewable biomass such as corn and crop stalks; replaces petroleum-based plastics; low-carbon and industrially compostable. 2. Heat resistance and insulation: Above 100 °C, suitable for hot-food serving and microwave heating, with built-in thermal insulation. 3. Foam structure: The outer sheets are unfoamed, with a low-expansion foam core. 4. Applications: 1) Food delivery: chain QSR, tea and bakery, prepared-meal delivery, replacing conventional PP/PS tableware and meeting environmental compliance requirements; 2) Convenience-store ready meals: instant noodles, ice cream, yogurt and similar packaging; 3) Airline and high-speed rail catering: lightweight and highly insulating, suited to cold, low-pressure and turbulent cabin environments and to airline environmental policies; 4) Fresh-food packaging: trays for fresh, chilled and bakery products, combining breathability with freshness retention. 5. Processing: Three-layer co-extrusion foaming.