Paper (handout) continued
13. The pulp selected for bleaching is treated with chlorine and similar chemical solutions to whiten the paper fibers.
14. The primary purpose of adding fillers to the pulp is to strengthen its properties.
15. Sizing is used to helpl make paper less absorbent and more water repellent, so it will not allow ink to spread.
16. Dyes and pigments are added to pulp during washing to give paper color.