Courier bags, courier bags, single-layer or multi-layer co-extruded film bags are self-adhesive packaging bags that are moisture-proof, waterproof, dust-proof, anti-static, wear-resistant, impact-resistant, load-resistant, and protective. Sealing (or spraying) of sexually destructive adhesive tape, no other tape is needed after sealing, which has the effect of sealing. If you want to open it again, it is necessary to damage the express bag and courier bag to take out the treasure inside, so There is a high degree of confidentiality.
Raw materials for express plastic bags (plastic express bags): Polyethylene (PE) can be divided into low-density polyethylene (LDPE) and high-density polyethylene (HDPE), which have the advantages of low cost and light weight. Differences: LDPE has good contrast in transparency and softness, and contrasting colors in printing; HDPE has outstanding mechanical properties; in China, express bags use LDPE as the main data, while abroad, they usually use LDPE and HDPE composite as express bags. 'S master profile.
One-time damage can not be recovered. Adhesive (or spray) courier bags and courier bags are suitable for courier and courier use of world, domestic items, letters, parcels, etc. It has high safety and is the most popular and widely used plastic in the current market Packing bag.