Attribute	Description	Reference
Material Composition	Multi-layer coextruded structure (e.g., PET/PE/PA, PET/EVA, or PA/EVOH/PE) with UV-absorbing/reflective additives (e.g., benzotriazole derivatives, inorganic nanoparticles).	6 7 8
UV Resistance	Blocks >99% of UV radiation (300–400 nm); maintains optical/mechanical properties after 2,000+ hours of UV exposure. Additives include red-shifted UVA (e.g., CGL-0139) for long-wave UV blocking.	6 7 8
Optical Properties	- Transmittance: >90% (visible light, 380–780 nm) - Haze: <5% - Gloss: ≥85% (60° angle).	3 8
Barrier Properties	- OTR: ≤5 cm³/m²·day (23°C, 0% RH) - WVTR: ≤2 g/m²·day (38°C, 90% RH).	2 3
Mechanical Strength	- Tensile Strength: ≥120 MPa (MD), ≥100 MPa (TD) - Elongation at Break: ≥80% - Puncture Resistance: ≥25 N.	2 10
Thermal Stability	Withstands -40°C to 180°C; suitable for retorting (121°C sterilization) and freezing.	3 10
Safety & Compliance	Complies with FDA 21 CFR, EU 10/2011, RoHS, and REACH for food/medical contact.	7 8
Processing Features	- Heat Sealability: 120–180°C (compatible with VFFS/HFFS machines) - Printability: Corona-treated surface for high-resolution flexo/gravure printing.	6 10

Parameter	Specification	Reference
Thickness	50–200 μm (customizable; tolerance ±5 μm); UV-blocking layer: 0.5–5 μm.	6 10
Width	200–1,500 mm (extendable to 3,000 mm for industrial rolls).	10
Roll Dimensions	- Core Size: 3" (76 mm) or 6" (152 mm) - Max. Roll Weight: 150 kg.	10
Physical Properties	- Density: 1.2–1.4 g/cm³ - Shrinkage: ≤1.5% (100°C, 30 min) - Surface Energy: ≥38 dyne/cm.	3 10
UV Resistance Metrics	- UV Blocking Efficiency: >99% (300–400 nm) - Accelerated Weathering Life: 2–5 years (ISO 4892).	6 7
Functional Additives	Optional: Anti-fog (contact angle <10°), anti-static (surface resistivity ≤10¹¹ Ω/sq), or EMI shielding (transparency >50%, SE ~40 dB).	2 8
Sustainability	- Recyclability: Mono-material PE/PP variants for single-stream recycling - Biodegradable Options: PLA/PHA-based composites (ASTM D6400).	3 8
Supply Parameters	- MOQ: 500 kg - Lead Time: 15–30 days - Packaging: Moisture-proof EPE-foamed cartons.