MLP (Multi-Layer Plastic)

MLP (Multi-Layer Plastic) refers to flexible packaging materials produced by laminating two or more distinct layers of different polymers (or polymers with aluminium foil) to combine barrier, strength, and printability properties that no single material can provide. Typical constructions include BOPP/PE (biscuit wrappers, snack bags), PET/LDPE (food pouches), PET/Al/PE (retort pouches, juice cartons), Nylon/PE (processed food vacuum packs), and BOPET/BOPP/PE (coffee sachets, shampoo pouches). India consumes approximately 600,000–800,000 tonnes of MLP per year, predominantly as fast-moving consumer goods (FMCG) packaging — the tiny sachet economy driven by unit-price accessibility.

MLP is classified as Category III plastic waste under India's Plastic Waste Management Rules 2016 (as amended in 2022), which imposes mandatory EPR obligations on producers and brand owners for MLP they place on the market. Because MLP is technically non-recyclable through conventional mechanical recycling (the layers cannot be delaminated economically), the EPR framework for MLP is built around co-processing (as fuel or raw material in cement kilns), plastic road construction (per MoRTH guidelines for bituminous roads up to 40 km radius from processing point), and plastic-to-fuel (pyrolysis) routes. Dedicated MLP chemical recycling (delamination and monomer recovery) exists in pilot projects but is not commercially deployed at scale in India as of 2024.

Collection economics for MLP are extremely challenging: bulk density 10–30 kg/m³, contaminated with food residue, very low scrap value (Rs 2–6 per kg at kabadiwala) due to the mixed-polymer composition. EPR credits for MLP (Category III) have historically commanded the highest rates — Rs 15–30 per kg in FY2023-24 — because the processing infrastructure is scarce relative to the obligation quantity. This creates an opportunity for entrepreneurs with co-processing or pyrolysis infrastructure to generate EPR revenue from MLP processing even when the direct material value is near zero.

For Indian recyclers, the practical play with MLP is either: (1) cement co-processing tie-up — supply MLP in pre-shredded, low-moisture form to a cement plant under an agreement that satisfies both the cement plant's alternative fuel protocol and the brand owner's EPR reporting requirement (requires CPCB-approved co-processing documentation); or (2) plastic pyrolysis integration — MLP gives reasonable pyrolysis oil yields (35–55% depending on construction) with higher wax fraction due to PE content. Targeting the EPR credit market requires PWP registration and careful documentation of tonnage — the CPCB has tightened audit requirements on MLP processing claims since 2022.