F) Since the lignin can be removed from the paper pulp during manufacture, the obvious question is "why is it left in the paper?" The answer lies in the fact that lignin makes up a considerable part of the tree. By leaving the lignin in the pulp a papermaker can increase his paper y...
leaving behind cellulose and some lignin. Most of the soluble substances are then removed from the chemical pulp during the washing process. On the other hand, mechanical pulp, such
Wood is a diverse substance, consisting of around 40-50% micro-fibrils of cellulose and 15-25% hemicellulose, bound together by the natural adhesive lignin. The process of creating paper from wood involves the initial conversion of raw wood into 'pulp,' a mixture of...