Material

Advantages

Disadvantages

‌PVC‌

1. Low price

2. High transparency

3. Good ductility

1. May contain plasticizers, which may be harmful to health if used for a long time

2. Not resistant to high temperatures, cannot be used in high temperature environments

3. May release harmful substances when in contact with oily foods

‌PE‌

1. Safe and non-toxic

2. Low cost

3. Good breath ability

1. Poor thermal stability and stretch resistance  2. Dissolves easily at high temperatures and cannot be used in microwave ovens or steamers

‌PVDC‌

1. Good barrier properties, not easy to react with fats and organic solvents 2. Acid and alkali resistant, high temperature resistant (melting point above 150°C)

1. High cost

2. Relatively few uses and low market penetration