Material types and their characteristics

‌PET/PE‌: This composite material is very common in quick-frozen food packaging. It has good moisture resistance, cold resistance, and low-temperature heat sealing performance, and has low production costs.

‌BOPP/PE and BOPP/CPP‌: The packaging bags made of these two materials have excellent moisture resistance and cold resistance, high low-temperature heat sealing tensile strength, and good economy. In particular, BOPP/PE material has a better feel, which is conducive to product marketing.

‌Three-layer structure packaging bags‌: Compared with the double-layer structure, the three-layer structure packaging bags are more solid and stable, have high barrier properties, and outstanding printing performance. However, the low-temperature heat sealing performance is slightly worse and the cost is higher.

‌PA/PE, PET/PA/LLDPE, PET/PA/AL/PE, PA/PE‌: These material structures are very resistant to freezing and impact, and the puncture resistance of the PA layer makes them suitable for packaging angular or heavy food products. But the production cost is high.

Production process and cost

The production cost of quick-frozen food packaging bags varies depending on the material. For example, the cost of PET/PE material is lower, while the cost of three-layer structure packaging bags containing PA layer is higher. In general, the production cost of quick-frozen food packaging bags is relatively low and suitable for large-scale production.

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