Customized plastic packaging bags are a job that many food manufacturers must do. Plastic packaging bags are a very common type of plastic flexible packaging bags in our daily life. For example, 90% of the things you see in the supermarket are It is the food that will be sold after being packaged in this kind of plastic packaging bag. Many customers who make plastic packaging bags for the first time do not understand the material of plastic packaging bags. What are the advantages of these plastic packaging bags?

1. Biaxially oriented polypropylene BOPP: high transparency, stretch resistance, cold resistance, heat resistance, -40 degrees -120 degrees;

2. Biaxially oriented polypropylene matting film: a film with low reflectivity, translucent, and matting effect;

3. Cast polypropylene CPP: good gloss, good transparency, heat-sealability, cast high-temperature film is suitable for cooking packaging;

4. Polyethylene PE: transparent, good gloss, heat-sealability, cold resistance;

5. Polyester film PET: with tensile strength, heat resistance of 60-150 degrees, good air tightness, suitable for cooking, no heat sealability;

6. Nylon PA or NY: colorless, high transparency, cold resistance, heat resistance, oil resistance, and can be steamed. Easy to absorb moisture and have no heat sealability.

When customizing plastic packaging bags, you must know that plastic packaging bags are made of the above single materials, such as OPP composite CPP. This combination is very suitable for the packaging of some small foods. Its characteristics are mainly high brightness, good transparency, and beautiful printing. , Moisture-proof and oxygen-proof.