Customized plastic packaging bags are a task that many food manufacturers must do. Plastic packaging bags are a kind of soft plastic packaging bags that are very common in our daily life. It is the food sold in this plastic packaging bag. Many customers who make plastic bags for the first time do not understand the materials of plastic bags. What are the advantages of these plastic bags?
1. Biaxially oriented polypropylene BOPP: high transparency, tensile resistance, cold resistance, heat resistance, -40 degrees to 120 degrees;
2. Bidirectional stretch polypropylene matting film: a film with small reflectance, translucent, and matting effect;
3. Cast polypropylene CPP: good gloss, good transparency, heat-sealability, cast high temperature film is suitable for cooking and packaging;
4, polyethylene PE: transparent, good gloss, heat sealability, cold resistance;
5. Polyester film PET: It has tensile resistance, 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, can be cooked. Easy to absorb moisture, no heat sealability.
When customizing plastic packaging bags, you must know that plastic packaging bags are composited from 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, oxygen.