Powder Scatter Hot Melt Lamination

Powder scatter lamination distributes thermoplastic adhesive powder (PA, PES, or PU, particle size 100–300 µm) at 20–60 g/m² onto fabric surface via engraved scatter roller, melts at 130–170°C in infrared oven within 8–12 seconds, then bonds second substrate under calendar nip (3–5 bar) at 120–160°C. Dot coverage of 15–40% balances bond strength with breathability. Wash resistance exceeds 50 cycles (ISO 6330) at 40°C for PA adhesive grades. Used for interlining in formal shirts, jackets, and uniforms where hand and drape must be preserved. Processing cost is $0.15–0.40/m² for high-volume garment interlining production.