Written communication is a vital part of our daily life and the use of paper greatly enhances this communication method. The primary starting material for paper is a tree. The beginning of paper is the extraction of "paper" cellulose from trees - the pulping process, and ends with the alignment, linking, and filling of this fibrous matte on the "wires" of a modern, high-speed paper machine. From beginning to end, lime is involved in the pulp and papermaking processes.