China OPP Heat Seal Film Suppliers - High-Quality Polypropylene Packaging from Trusted Factory
Product Parameters
| Item | Unit | Typical Values |
|---|---|---|
| Width | mm | Custom |
| Thickness | micron | Custom |
| Shrinkage | ％ | TD: ≤2.5 | MD: ≤4.5 |
| Shrink Temperature | ℃ | 100 – 135 |
| Proportion | g/cm³ | OPP: 0.91 | CPP: 0.96 |
| Tear Strength | ％ | TD: ≤80 | MD: ≤200 |
| Transverse Elongation at Break | MPa | TD: ≤200 | MD: ≤120 |
Product Applications
OPP packaging is commonly used in food, stationery, toys and other daily necessities. Its appearance is transparent and has excellent waterproof, moisture resistance, air tightness and oil prevention characteristics. It plays an important role in ensuring product quality, preventing product pollution and improving product appearance.
Frequently Asked Questions
Q
What is OPP heat seal film, and how does it differ from CPP film?
OPP (Oriented Polypropylene) film is a biaxially stretched film known for its high transparency, stiffness, and excellent moisture barrier. CPP (Cast Polypropylene) film is non-oriented, offering better heat-sealability and softer flexibility. OPP has a density of 0.91 g/cm³ while CPP is 0.96 g/cm³, making OPP slightly lighter. Both are widely used in food and consumer goods packaging.
Q
What shrink temperature range is recommended for this OPP heat seal film?
The recommended shrink temperature range for this film is 100°C to 135°C. Operating within this range ensures optimal shrinkage performance without damaging the film or the packaged product. Always verify your specific packaging equipment's temperature settings before production.
Q
Can the width and thickness of the film be customized?
Yes, both the width (mm) and thickness (micron) of the OPP heat seal film are fully customizable to meet your specific packaging requirements. Please contact us with your project specifications, and our team will provide a tailored solution.
Q
Is OPP heat seal film suitable for food packaging?
Yes. OPP heat seal film is widely used in food packaging due to its excellent transparency, waterproof properties, moisture resistance, airtightness, and oil-resistance. It helps preserve food freshness, prevents contamination, and enhances the visual appeal of packaged products on retail shelves.
Q
What are the typical shrinkage values for this film?
The film offers controlled shrinkage with TD (Transverse Direction) shrinkage of ≤2.5% and MD (Machine Direction) shrinkage of ≤4.5%. These low shrinkage values ensure dimensional stability during processing and storage, reducing waste and improving packaging consistency.
Q
What industries and products is this heat seal film commonly used for?
This OPP heat seal film is suitable for a wide range of industries, including food and beverage, stationery, toys, cosmetics, and general daily necessities. It can be supplied in pre-formed bags or as rolls, making it versatile for both automated and manual packaging lines.