High-Barrier Milky PE Composite Roll Film OTR≤ 0.05 Cc/M² /Day

• Customization: Available
• Industrial Use: Apparel
• Transparency: Opaque
• Model NO.: Roll Film
• Layered: Basic Level
• Hardness: Soft
• Basic Level: BOPP
• Heat Seal: CPP
• Functional Layer: VMPET
• Packaging: Bag
• Bag Sealing Methods: Flat Bag Packaging
• Trademark: Bright
• Origin: Guangdong Province

Product Description

Product Attributes

Material Composition & Structure
Multi-Layer Coextrusion: Combines a milky-white polyethylene (PE) base layer with specialized functional laminates. Typical structure includes a printable outer layer (e.g., corona-treated BOPP or PET for graphics), a high-barrier core (e.g., EVOH or metallized film for oxygen/moisture blocking), and a PE-based heat-sealable inner layer. Total thickness ranges from 25-200 μm, customizable for application-specific needs6
Functional Additives: Incorporates light-blocking agents (>99% UV opacity) to prevent photo-degradation of sensitive contents (e.g., dairy, supplements), anti-static coatings to reduce dust adhesion during filling, and tie-layer adhesives ensuring interlayer bonding strength ≥9.5 N/25mm6
Barrier Performance
Ultra-Low Permeability: Achieves oxygen transmission rate (OTR) ≤0.05 cc/m²/day and water vapor transmission rate (WVTR) ≤0.3 g/m²/day (tested at 38°C, 90% RH per ASTM F1249), extending shelf life for oxygen-sensitive products like powdered beverages and pharmaceuticals6
Light & Contaminant Blocking: The milky-white pigment provides **>99% light opacity**, preventing flavor loss and nutrient degradation, while the composite structure resists grease, acids, and punctures9
Mechanical & Thermal Properties
Durability: Withstands puncture forces ≥50N (ASTM F1306) and tensile strength of 40-60 MPa (MD) / 30-50 MPa (TD) (ASTM D882). Elongation at break maintains 180-250% for flexibility during high-speed packaging6
Temperature Resilience: Operates in -40°C to 121°C ranges, suitable for frozen storage, hot-fill liquids, and retort processing (e.g., 121°C steam sterilization for 30 minutes)7
Printing & Processing Adaptability
High-Definition Branding: Supports up to 10-color flexographic or gravure printing with ≤0.1 mm registration accuracy. The corona-treated surface enables **≥95% ink adhesion retention (ASTM D3359 tape test) and compatibility with water-based/eco-solvent inks** (REA
Product Specifications
Physical Parameters
Thickness: 25-200 μm (total composite); customizable layer distribution (e.g., outer: 12-25 μm, barrier: 6-12 μm, sealant: 50-100 μm)6
Roll Dimensions: Width 200-1200 mm (±0.2 mm), max. length 5,000 m; core ID 76.2 mm or 152.4 mm6
Surface Treatment: One-side corona treatment ≥38 dyne/cm for printability13
Mechanical Properties
Tensile Strength: ≥40 MPa (MD), ≥30 MPa (TD) (ASTM D882).
Elongation at Break: 180-250% (ASTM D882).
Peel Strength (Interlayer): ≥9.5 N/25mm (ASTM D3330)6
Sealing Performance
Heat Seal Strength: ≥35 N/15mm at 110°C-160°C (ASTM F88).
Seal Initiation Temperature: ≤110°C for energy efficiency6
Barrier Metrics
OTR (23°C, 0% RH): ≤0.05 cc/m²/day (ASTM D3985).
WVTR (38°C, 90% RH): ≤0.3 g/m²/day (ASTM F1249)6
Compliance & Safety
Certifications: FDA, EU 10/2011, ISO 22000, BRCGS, REACH SVHC <0.1%, ROHS6
Migration Limits: Heavy metals (Pb, Cd, Hg) <0.01 ppm; solvent residue ≤3 mg/m² (GB 9685)