Abstract
The delignification of Jerusalem artichoke stems was carried out at an active alkali consumption of 16% in units of Na2O from the mass of abs. dry raw materials at a temperature of 120 °C for 15 min, 30 min and 45 min with preliminary soaking for 30 min. The production of fibrous semi-finished products with increased yield from Jerusalem artichoke stems by an alkaline method suitable for the production of cardboard in a composition with other VNFs was shown.