CPE Film (Cast Polyethylene Film) is a high-performance packaging film produced through the cast extrusion process using polyethylene as the raw material. It offers excellent heat sealing properties, good flexibility, and superior toughness. This film provides excellent moisture barrier performance and good chemical resistance, making it ideal for a wide range of packaging applications.
Our CPE Film has a low heat sealing initiation temperature (as low as 80°C), enabling high-speed packaging operations. With high clarity and good slip properties, it ensures both excellent product display and smooth machine processing. The film thickness ranges from 30μm to 200μm, providing options for various packaging requirements.
CPE Film demonstrates excellent puncture resistance and tear strength, offering superior product protection. With its good printability and laminating properties, it's suitable for various printing methods and can be combined with other films to enhance barrier properties. The film is available in various special types, including anti-fog, anti-static, and UV-resistant versions.
CPE Film Technical Specifications
Our CPE Film meets strict quality standards and provides the following performance specifications:
| Property | Unit | Test Method | Typical Value |
|---|---|---|---|
| Thickness | μm | ASTM D374 | 30-200 |
| Thickness Tolerance | % | ASTM D374 | ±5 |
| Density | g/cm³ | ASTM D1505 | 0.91-0.94 |
| Haze | % | ASTM D1003 | ≤5.0 |
| Gloss (45°) | % | ASTM D2457 | ≥70 |
| Tensile Strength (MD) | MPa | ASTM D882 | ≥20 |
| Tensile Strength (TD) | MPa | ASTM D882 | ≥20 |
| Elongation at Break (MD) | % | ASTM D882 | ≥400 |
| Elongation at Break (TD) | % | ASTM D882 | ≥450 |
| Heat Sealing Initiation Temperature | °C | Internal Method | 80-90 |
| Heat Sealing Strength | N/15mm | Internal Method | ≥3.5 |
| Surface Tension (Treated Side) | mN/m | ASTM D2578 | ≥38 |
| Water Vapor Transmission Rate (38°C, 90% RH) | g/m²·24h | ASTM F1249 | ≤8.0 |
| Oxygen Transmission Rate (23°C, 0% RH) | cm³/m²·24h·atm | ASTM D3985 | ≤3500 |
| Puncture Resistance | g | ASTM D1709 | ≥250 |
| Coefficient of Friction (Film to Film) | - | ASTM D1894 | 0.20-0.35 |
Note: The above values are typical and should not be considered as specifications. Custom specifications are available upon request.
Processing Information
Printing
CPE Film can be printed using various printing methods including flexographic, gravure, and offset printing. The corona-treated surface provides excellent ink adhesion for high-quality printing results.
Lamination
Our CPE Film can be laminated with various substrates such as BOPP, BOPET, BOPA, and aluminum foil using solvent-based, solvent-free, or water-based adhesives to enhance barrier properties and mechanical performance.
Heat Sealing
With excellent heat sealing properties and low sealing initiation temperature, our CPE Film can be sealed using various heat sealing equipment. The recommended heat sealing conditions are: temperature 90-110°C, pressure 0.2-0.4 MPa, dwell time 0.5-1.0 seconds.
Storage and Handling
Store in a cool, dry place away from direct sunlight. Recommended conditions: temperature 15-25°C, relative humidity 45-65%. The shelf life is 12 months when stored correctly. For optimum processing performance, it is recommended to bring the film to room temperature before use.
CPE Film Applications
Our CPE Film, with its excellent heat sealing properties, flexibility, and puncture resistance, is widely used in the following areas:
Food Packaging
Widely used for packaging bread, frozen foods, fresh produce, and meat products due to its excellent heat sealing properties, moisture barrier, and puncture resistance.
Industrial Packaging
Used for packaging hardware, electronic components, and industrial parts, providing excellent protection against moisture, dust, and physical damage.
Medical Packaging
Used for packaging medical supplies and devices, providing good barrier properties, sterilization compatibility, and reliable seal integrity.
Textile Packaging
Used for packaging garments, textiles, and fabrics, providing excellent protection against moisture and dust while allowing product visibility.
Lamination Applications
Used as a lamination layer in multi-layer composite structures, providing excellent heat sealing and good adhesion to various substrates.
Heavy-Duty Packaging
With its high puncture resistance and tear strength, it's suitable for heavy-duty packaging applications that require strong physical protection.
Product Advantages
- Excellent Heat Sealing - Low heat sealing initiation temperature (80-90°C) and high sealing strength
- Superior Flexibility - Maintains good flexibility even at low temperatures
- High Puncture Resistance - Provides excellent protection against physical damage
- Good Moisture Barrier - Effectively protects products from moisture
- Chemical Resistance - Resistant to various chemicals and oils
- Good Printability - Corona-treated surface provides excellent ink adhesion
- Excellent Processability - Good slip properties for smooth machine processing
- Food Safety - Complies with FDA and EU food contact regulations
