Process for manufacturing white quimicotermomecanicas pasta.

摘要

Process for manufacturing bleached CTMP pulps comprising a treatment of the lignocellulosic stock with sulphite at a temperature of at least 100 DEG C under saturated steam pressure, and a bleaching operation with the aid of H2O2 in alkaline medium without removal of solid or liquid matter from the pulp from the start of the treatment until the end of the bleaching.