In producing paper, pulp derived from pine, bamboo, and eucalyptus wood is used. In the stage of processing the pulp into sheets, the sheets won't be smooth until they are coated with starch. The tapioca starch solution will not only increase the smoothness of the sheet surface but also fill up the pores on the sheets, making the sheet harder for ink or color penetrate. Besides, adhesive in the starch remaining in the finished paper increases the paper strength.
