Bleachability of a Clean Fraction from Aspen Semichemical Corrugating Pulp

摘要

A clean portion of fiber suitable for bleaching was separated by centrifugal cleaning when a commercial aspen corrugating grade of neutral sulfite semichemical pulp and experimental pulps varying in yield were used. Relations were also shown between yield of unbleached pulp, the chemical requirements for pulping and bleaching, and pulp quality.