Jumbo rolls of adhesive tape are intermediate products in the manufacturing of BOPP carton-sealing tape; they require slitting and processing to be converted into finished products of specific dimensions. Following New Year's Day 2026, the market price for jumbo rolls saw a strong start to the year, experiencing consecutive increases. Looking back at 2025, prices followed a "decline-then-rise" trajectory in the third quarter, with a spread of 500 yuan/tonne between market highs and lows; notably, the price drop in September 2024 broke the market's decade-long seasonal pattern of "strong-weak-strong-weak" fluctuations.
Jumbo rolls utilize BOPP (biaxially oriented polypropylene) film as the base material; following high-voltage corona treatment, a pressure-sensitive adhesive emulsion (primarily composed of butyl acrylate) is applied to form the adhesive layer. Industrial production commonly employs automated slitting processes-utilizing technologies such as specialized CNC machinery and circular cutting blades-to cut the material. These rolls are categorized by transparency into clear and semi-transparent varieties. The industry adheres to the standard *QB/T 2422-1998: BOPP Pressure-Sensitive Adhesive Tape for Carton Sealing*.
