METHOD OF PRODUCING SOLUBLE PULP, VISCOSE FIBRE AND LYOCELL FIBRE

摘要

FIELD: chemistry.;SUBSTANCE: raw material undergoes steam treatment before the cooking step. Cellulose obtained by cooking, undergoes cold caustic extraction (CCE) during subsequent treatment.;EFFECT: invention enables to obtain cellulose with high output and purity of the product, and avoid accumulation of hemicellulose in the bleaching filtrate.;21 cl, 7 ex, 9 tbl, 13 dwg