Date of Award


Degree Name

Bachelor of Science


Paper Science and Engineering


Clean corrugated board waste was fractionated into its softwood/hardwood fiber components, repulped using a kraft pulping process, and bleached using a CEHD bleaching sequence in an effort to produce high brightness fiber suitable for use in medium to high quality white paper.

The papers produced has almost equivalent mechanical strengths and opacity, but possessed unsatisfactory brightness and cleanliness when compared to commercially manufactured bleached kraft pulps of identical softwood/hardwood contents.

Based on this experimental data, the use of recycled fiber from corrugated board as a fiber substitute in the manufacture of high quality printing and writing papers is not recommended due to its inferior brightness and cleanliness. The pulps might find applications in the manufacture of medium quality printing and writing papers if used as a partial fiber substitute for kraft pulps.