Heat-sealable BOPET
Heat Sealable BOPET Film is a special biaxially oriented polyester film with co extruded copolyester heat seal layer on one side. It retains excellent mechanical strength, dimensional stability and optical performance of standard BOPET, while realizing direct heat sealing capability. It can seal to itself, APET/CPET trays, PVDC and other substrates without compounding PE/CPP inner layer. Suitable for gravure, flexo printing and high speed packaging processing, widely used for lidding film, flexible pouch and high end composite packaging.
Description
Basic Parameters & Sealing Condition
| Thickness | 12μm-50μm (customizable) |
| Sealing Temperature | 130℃-160℃ |
| Sealing Pressure | 0.2-0.5 MPa |
| Sealing Time | 0.3-1.2 s |
| Surface Tension | ≥42 mN/m (corona-treated printing side) |
| Heat-Seal Strength | 3-7 N/15mm |
| Haze | ≤3.5% |
All parameters are for reference only. Final setting shall be adjusted according to actual printing, sealing and packaging process.
Key Features
Direct Heat-Sealing Performance
Built-in copolyester heat-seal layer, no need to laminate PE/CPP inner layer. Wide heat-seal window, stable hot-tack, reliable seal strength, compatible with self-seal and tray-lidding applications.
Excellent Printability
Corona-treated surface with high surface tension, strong ink adhesion, clear printing, good dot reproduction, suitable for multi-color gravure and flexo printing.
High Stiffness & Dimensional Stability
High tensile strength, low heat shrinkage, stable dimension under high-speed printing and packaging, no curling or wrinkling during processing.
High Transparency & Gloss
High light transmittance, low haze, bright appearance, good product display effect.
Good Barrier & Chemical Resistance
Good oxygen and aroma barrier, resistant to most organic solvents, suitable for high-speed printing and packaging production.
Food-contact Grade Available
Meet food-contact standards, non-toxic and odorless, for food, pharmaceutical and daily-chemical packaging.
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