Adhesive sheet roll, rolling core, producing process thereof, and method of recycling adhesive sheet roll

摘要

A pressure-sensitive adhesive sheet roll includes a core and a pressure-sensitive adhesive sheet being wound around the core, wherein the core and the pressure-sensitive adhesive sheet contain one or more substantially identical components. The pressure-sensitive adhesive sheet may include a base material and a pressure-sensitive adhesive layer. The base material may contain a plastic resin. The pressure-sensitive adhesive sheet may be a removable pressure-sensitive adhesive sheet. The core can be formed from one or more materials derived from a waste of the pressure-sensitive adhesive sheet roll. As the waste, at least one selected from wastes by-produced in production processes of the pressure-sensitive adhesive sheet roll, used pressure-sensitive adhesive sheets and used cores may be used.