The main raw material for paper is cellulose; about 50 of the content of wood is cellulose. .Chemical pulp production is the cooking of the wood raw material with chemicals. .Cooking is necessary to remove the binding agents from the wood. Chemicals and heat are used to dissolve the lignin, the binding agent that holds the wood fibers together. The cooked chemical pulp, which is made up of wood fibers, is the main raw material in the production of paper and board. .Both softwood and hardwood are used in the making of the chemical pulp.