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High Quality Custom PE Plastic Printing Courier Shipping Bags - China Suppliers & Factory Direct Mailer Packaging Solutions
Product Details
Express shipping bags are made of a variety of materials, different materials for different packaging needs. The following are some common materials:
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.
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Frequently Asked Questions
What are the most common materials used for express shipping bags?
Express shipping bags are commonly manufactured from Polyethylene (both LDPE and HDPE) due to its excellent flexibility, impact resistance, and water-resistant sealing properties. Other materials include Polypropylene (PP) for sturdier requirements and Kraft paper-plastic composites for eco-friendly alternatives.
Are these mailing bags waterproof and tear-resistant?
Yes, mailing bags made from Polyethylene (PE) and multi-layer co-extruded films offer high tensile strength, excellent tear resistance, and reliable water resistance, protecting the inner contents from moisture and rough handling during transit.
Can I customize the sizes and print logos on the shipping bags?
Absolutely. Materials like BOPP and Polyethylene feature great printing adaptability. You can customize the dimensions, thickness, colors, and print your custom brand logos or barcodes directly onto the surface of the shipping bags.
Are there environmentally friendly options for courier bags?
Yes, we offer biodegradable materials such as PLA (polylactic acid) and starch-based plastics, as well as recyclable Kraft paper composites. These materials break down naturally under composting conditions, significantly reducing environmental impact.
What is the difference between LDPE and HDPE mailing bags?
LDPE (Low-Density Polyethylene) bags are softer, more flexible, and have excellent puncture resistance. HDPE (High-Density Polyethylene) bags are stiffer, have higher tensile strength, and offer a crinkly texture, making them ideal for lightweight but heavy-duty shipping needs.