PROCESS FOR PRODUCING PULP WITH A MIXTURE OF FORMIC ACID ANDACETIC ACID AS COOKING CHEMICAL

摘要

The invention relates to a process based on formic acid cooking for producin g pulp from herbaceous plants and deciduous trees by using acetic acid as an additional cooking chemical. The obtained pulp can be used in fine paper and board production as short-fibred material, for instance. The invention also relates to a process for adjusting the hemicellulose content of the pulp in connection with the formic acid cooking by using acetic acid as an additiona l cooking chemical.