Q
What is OPP heat seal film used for?
OPP heat seal film is widely used in packaging for food, stationery, toys, and other daily necessities. It provides a transparent, protective barrier that is waterproof, moisture-resistant, airtight, and oil-resistant, making it ideal for preserving product quality and appearance.
Q
Can the width and thickness of the OPP film be customized?
Yes. Both the width (in mm) and thickness (in microns) of the OPP heat seal film can be fully customized to meet your specific packaging requirements. Specifications can be customized to meet your packaging requirements for a tailored solution.
Q
What is the recommended heat sealing temperature range?
The shrink temperature for this OPP heat seal film is between 100°C and 135°C. This range ensures effective sealing while maintaining the structural integrity and clarity of the film.
Q
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 between them depends on your application's flexibility, clarity, and heat resistance requirements.
Q
Is OPP heat seal film available in roll form or pre-made bags?
Yes, OPP heat seal film is available both in roll form and as pre-made bags, offering flexibility for different production line setups and packaging formats. Custom sizes and formats can be arranged upon request.
Q
What are the shrinkage properties of this film?
The film exhibits controlled shrinkage performance: TD (Transverse Direction) ≤ 2.5% and MD (Machine Direction) ≤ 4.5%. These low shrinkage values help ensure dimensional stability during the packaging process and in end-use conditions.
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