1
What is OPP heat seal film used for?
OPP heat seal film is widely used for packaging food, stationery, toys, and other daily necessities. Its transparent appearance and excellent barrier properties make it ideal for protecting products from moisture, air, and oil contamination.
2
Can the width and thickness 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.
3
What is the recommended heat sealing temperature range?
The recommended shrink temperature range for this film is 100°C to 135°C, ensuring reliable sealing performance across a variety of packaging machinery setups.
4
What is the difference between OPP and CPP film in terms of density?
OPP (Oriented Polypropylene) film has a density of 0.91 g/cm³, while CPP (Cast Polypropylene) film has a slightly higher density of 0.96 g/cm³. The choice depends on the specific application and sealing requirements.
5
Is the film available in roll form or pre-made bags?
The heat seal film is available both in roll form and as pre-made bags, providing flexible options for different packaging lines and production needs.
6
What are the shrinkage properties of this film?
The film has a controlled shrinkage rate with TD (transverse direction) at ≤2.5% and MD (machine direction) at ≤4.5%, ensuring dimensional stability during packaging processes and storage.
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