Double-sided tape-sealed products are typically plastic packaging bags, also known as adhesive-backed bags or window bags. Made of PP material, these bags are very transparent and smooth to the touch, but quite rigid with a loud, crisp sound. Folding them creates creases, so adhesive-backed bags should not be folded. They can be attached to boxes to hold various documents, such as PE bags, which are also transparent but not as clear as OPP. Therefore, PP bags are more cost-effective than OPP bags. PP material is more expensive than PE material.

Adhesive-backed bags not only thrive in logistics but are also commonly used in everyday life to store important documents, such as notebooks and bankbooks, etc. Therefore, adhesive-backed bags are always present in our lives.