Cellulose is the main component of plant cell walls and is the raw material used in papermaking. It provides long fibers that make paper strong. The papermaking process involves processing wood or plant fibers into pulp, then forming paper sheets. Cellulose provides the fibers that bond together during drying to create paper. New technologies use nanocellulose to further enhance paper strength and properties. Due to increasing demand, the paper industry must find more sustainable ways to produce paper from renewable cellulose sources.