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Analysis of Food Packaging Materials: Choosing Between PET/PE and Composite Roll Films
Release time :
Oct 14,2025
Source :
PET/PE composite roll film is commonly used for packaging foods like bread and cakes.
Roll Films for Bread and Pastry Packaging: Detailed Analysis of PET/PE Composite Roll Films
PET/PE composite roll film is commonly used for packaging foods like bread and cakes. This film combines the advantages of PET and PE, offering high transparency and excellent oxygen barrier properties, making it ideal for gas-flushed packaging of such foods. Additionally, its superior heat and cold resistance allows it to be used for packaging frozen and retort-cooked foods.
Subcategories of Roll Film
● BOPP/CPP Composite Roll Film
BOPP/CPP composite film, made from biaxially oriented polypropylene and unoriented polypropylene, is often referred to as OPP/CPP composite film bags. Among various composite films, it stands out for its exceptionally high transparency. Although this composite film costs slightly more than single-layer plastic bags at equivalent thicknesses, it offers superior tactile properties. Additionally, this film offers excellent moisture resistance, making it highly suitable for food packaging, particularly for dry goods and fast food items like cookies and instant noodles. However, it is important to note that its heat and cold resistance are relatively weak, rendering it unsuitable for packaging refrigerated or high-temperature sterilized foods.
● OPP/PE Composite Roll Film
BOPP/LDPE composite film bags, commonly referred to as OPP/PE composite bags, are made by laminating biaxially oriented polypropylene with high-density polyethylene. These composite bags excel in gas and moisture barrier properties, making them highly suitable for packaging products like green tea. Additionally, they offer excellent oil resistance, making them a popular choice for packaging cooked foods and oil-based products.
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