Custom High-Quality Pe Plastic Printing Mailer Bags from China Suppliers | Durable Courier Shipping Packaging Factory

1. polyethylene (PE): including low-density polyethylene (LDPE) and high-density polyethylene (HDPE), with good flexibility, impact resistance and sealing.

2. polypropylene (PP): has high strength, rigidity and heat resistance and is suitable for courier shipments that require sturdier packaging.

3. polyvinyl chloride (PVC): good transparency and chemical resistance, but less environmentally friendly and less used.

4. polyethylene terephthalate (PET): has high strength and transparency, commonly used in express packaging that requires high transparency and strength requirements.

5. Multi-layer composites: such as PE/PP, PE/PA/PE, etc., combining the advantages of different materials to provide better physical properties and barrier properties.

6. Bi-oriented Polypropylene (BOPP): with good tensile strength, transparency and printing adaptability, it is commonly used as the printing layer of express transport bags.

7. polyvinyl alcohol (PVA): water-soluble materials, can be used for special needs of express packaging.

8. kraft paper/paper-plastic composite: kraft paper laminated with plastic film, combining the environmental friendliness of paper with the sealing properties of plastic.

9. Metallised film: a layer of metal is coated on plastic film to provide good barrier and light blocking properties.

10. Biodegradable materials: such as polylactic acid (PLA), starch-based plastics, etc., suitable for express packaging with high environmental requirements.