Polyethylene (PE): This is the most common material for disposable food bags. It has good water resistance and flexibility, making it suitable for packaging dry or chilled foods. PE is relatively inexpensive and easy to process, but its heat resistance is poor, making it unsuitable for high-temperature food packaging.
Polypropylene (PP): PP is more heat-resistant than PE and is often used for microwaveable or hot food packaging. It has high transparency and strength, but its cost is relatively high.
Oil-proof paper: Oil-proof paper is a specially treated paper with good oil resistance and breathability. It is often used for packaging fried or high-fat foods. Oil-proof paper is usually biodegradable and has good environmental performance.
Aluminum foil composite material: This material is made of aluminum foil combined with plastic or paper. It has excellent barrier properties, effectively preventing the penetration of oxygen, moisture, and light, and is often used for food packaging requiring long-term preservation.
Biodegradable materials: With increasing environmental awareness, some disposable food bags have begun to use PLA (polylactic acid) or starch-based materials, which can degrade in the natural environment and reduce environmental pollution.
