Sealing tape, also known as packaging tape or bopp tape, is made of BOPP biaxially oriented polypropylene film and coated with pressure-sensitive adhesive emulsion. It has the characteristics of strong adhesion and good waterproofness. Sealing tape is mainly used for centralized packaging and pallet transportation of various goods. It can effectively protect products and play a dust-proof, moisture-proof and buffering role. Especially in the packaging of export outer boxes, sealing tape is widely used because of its strong performance and certain protective effects.