Colorful self adhesive courier bags are functional plastic packaging bags designed specifically for express delivery. Their core features include a colorful appearance, self-adhesive seal, and lightweight protection. They enhance visual recognition beyond basic express delivery protection and are widely used for e-commerce shipments, personal mail, and small item transport. Their design not only protects package contents, but also distinguishes product categories and enhances brand identity through color.
1. Strong Edge Sealing: Withstands strong tearing and cracking.
2. Double-Hole Design: Two holes per bag prevent the bag from bursting due to inflation.
3. Explosion-Proof Edge Sealing: Heat-sealed for a secure, tear-resistant edge, preventing loss of items.
1. Waterproof and moisture-proof: The dense film surface seals out rain and moisture, protecting clothing, stationery, daily necessities, and other items within the package from moisture.
2. Flexibility: Resists slight squeezing and folding, and resists breakage during transport and stacking.
3. Stable color adhesion: Direct injection molding using masterbatch (not surface printing) ensures uniform, fade-resistant color. Common base colors include red, blue, yellow, and green.
4. Low cost: Suitable for cost-sensitive applications such as small and medium-sized e-commerce companies and personal delivery. With a typical thickness of 0.03mm-0.05mm, it meets the packaging needs of lightweight items such as clothing and accessories.
5. The bag body is formed using a heat-cut process, resulting in a smooth surface. In addition to the basic colors, custom printing is available (such as store logos, shipping tips, QR codes, etc.), making it suitable for e-commerce brands to create exclusive packaging. For example, a red bag with a white logo creates a strong visual impact and helps consumers remember the brand. Some styles feature a transparent color edge design (the bag body is transparent, with colored sides/bottom), which allows for displaying items (such as clothing and toys) and distinguishing between categories through the colored areas (such as a blue bag-filled top and yellow bag-filled pants).
6. The bottom of the bag is a square bottom or a three-dimensional accordion bottom: When the square bottom is unfolded, the bottom is flat and can be placed upright, which is convenient for filling items (such as books and boxes). The internal space is 20%-30% larger than that of a flat-bottom bag, which can hold more small items; the three-dimensional accordion bottom has pleats on both sides, which can expand and contract freely when filling irregular-shaped items (such as plush toys and scarves), preventing the bag from being broken and making it more adaptable.
7. Easy-to-open design: Protect privacy and facilitate receipt. Some upgraded models will add easy-to-tear notches (such as serrated cuts and reserved tear holes) on the side of the bag. The recipient can easily open the package along the easy-to-tear notch without using scissors to avoid scratching the items inside. At the same time, the colored bag body can cover the internal contents (compared to transparent express bags) to protect user privacy (for example, when sending gifts or personal items, the inside will not be easily visible).
1.Portable opening:One side is open, and the other side is dotted for easier packaging.
2.No adhesive required:Machine-heat-melt packaging and sealing are integrated.
3.Excellent toughness and tear resistance:Three-layer co-extruded blown film offers excellent tensile strength and tear resistance.
4.Dual-hole ventilation:Convenient bottom vents and dual-hole ventilation prevent bag bursting.
