80μm Natural Color Cast Polypropylene Film
High-performance retort CPP film with exceptional puncture resistance for demanding packaging applications across multiple industries.
Product Overview
80-micron natural color cast polypropylene (CPP) film is a robust, versatile packaging material offering excellent durability and performance characteristics. This relatively thick film provides superior protection and functionality for food, medical, industrial, and specialty packaging applications.
Key Applications
- Food Packaging: Ideal for meat, cheese, snacks, and vacuum packaging with high puncture resistance, strong seal strength, and excellent barrier properties
- Industrial Packaging: Superior protection for heavy-duty products, bundling, and pallet wrapping during transportation and storage
- Medical & Pharmaceutical Packaging: High-performance protection for medical devices and surgical instruments during shipping and storage
- Stationery & Gift Packaging: Sturdy protection for folders, portfolios, and gift boxes
- Labeling: Durable label applications with excellent adhesion to packaging surfaces
- Lamination: Bonding layer in laminated structures providing added strength, durability, and barrier properties
Material Characteristics
Cast polypropylene film features excellent transparency, high gloss, and superior moisture barrier properties, making it ideal for applications requiring product visibility. The material demonstrates exceptional durability, flexibility, and heat sealing capabilities.
Performance Advantages
- High resistance to punctures, tearing, and abrasion
- Excellent dimensional stability with minimal shrinkage or stretching
- Superior printability with clear graphics for branding applications
- Resistance to environmental factors including moisture and chemicals
- Suitable for various temperature ranges including retort applications
Manufacturing Process
- Polymerization: Propylene monomers polymerized under pressure and high temperature to produce polypropylene resin pellets
- Extrusion: Resin pellets melted and extruded through a flat die to form continuous sheet
- Orientation: Sheet stretched across machine and transverse directions to enhance mechanical properties and clarity
- Cooling: Film cooled using cooling roll and stored on take-up roll
- Finishing: Surface treatments including corona discharge to improve printing quality and adhesion
Advantages Over BOPP Film
- Improved Sealing Properties: Higher seal strength ideal for food packaging
- Enhanced Clarity: Superior gloss and transparency for product visibility
- Better Hot Tack Properties: Suitable for high-speed packaging machines requiring quick sealing
- Increased Heat Resistance: Excellent performance in hot-fill and retort packaging applications
- Higher Puncture Resistance: Enhanced durability and damage resistance during transportation and storage
Technical Specifications
| Test Item |
Unit |
Range |
Test Standard |
| Thickness |
Avg. |
80 μm |
GB/T 6672 |
| Max. |
≤84 |
| Min. |
≥76 |
| Width |
Avg. |
1020 ±3 mm |
GB/T 6673 |
| Tensile Strength |
MD |
≥20 MPa |
GB/T 1040.3 |
| TD |
≤15 |
| Elongation @ Break |
MD |
≤300% |
GB/T 1040.3 |
| TD |
≤300% |
| Wetting Tension |
- |
≥38 mM/m |
GB/T 14216 |