Common frozen food packaging bag materials include the following categories:

PET/PE material: This material has good moisture resistance, cold resistance and low-temperature heat sealing performance, and the cost is relatively low, so it is very common in quick-frozen food packaging.

BOPP/PE and BOPP/CPP structure: Both structures show excellent moisture resistance, cold resistance and low-temperature heat sealing tensile strength, and are economical. In particular, packaging bags with BOPP/PE structure have better appearance and feel, which can effectively improve the overall grade of the product.

PET/VMPET/CPE and BOPP/VMPET/CPE structure: Due to the presence of the aluminum coating, these structures have exquisite surface printing effects, but the low-temperature heat sealing performance is slightly poor and the cost is high, so the utilization rate is relatively low.

‌PA/PE, PET/PA/LLDPE, PET/PA/AL/PE, PA/PE‌: These material structures are very resistant to freezing and impact, and have good puncture resistance, but they are more expensive and are suitable for packaging food products with sharp edges or heavier.

In addition, the material selection of frozen food packaging bags also needs to consider its moisture resistance, cold resistance, puncture resistance and other properties. For example, nylon (NY)/polyethylene (PE) composite materials are often used to package food products with sharp edges or heavier due to their tough protective ability and good puncture resistance.

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