Intensification of extraction of natural raw materials for wool yarn dyeing UDC 677.027.4 DOI: https://doi.org/10.24412/2079-7958-2025-2-69-79 Authors Natallia V.… https://vestnik.vstu.by/eng/issues/vestnik-52/chemical-engineering/intensification-e-xtraction-na-tural-raw-mat-erials-wool-yarn-dyeing/