Hemp-based lignocellulosic mass as a basis for producing textile fibers

Bast crops without narcotic ingredients are of particular significance to northern countries as seeds source, fibers, and dissolving pulp. In comparison to wood, hemp fibers contain a higher concentration of cellulose, whereas lignin is substantially lower. Winter maceration removes part of the cellulose satellites (pectins) and facilitate its further cooking. The outer husk of hemp has high concentrations of inorganic cellulose impurities (metals). The isolated fibrous hemp cellulose can be utilized for dopes preparation in N-methylmorpholine-N-oxide. To produce high-quality solutions, powdered cellulose was combined with a crystalline solvent and solid-phase activated. Heating the cellulose-solvent system and turning it into a fluid state allowed us to examine the morphology of solutions. Mechanically treated samples provide a heterogeneous morphology, whereas bleached cellulose produces homogeneous dopes. A small amount of impurities has a negligible impact on the dope's rheology. The solution's viscosity did not exhibit substantial variations during 60 min. The solid-phase approach to obtaining dopes is unique in that it allows you to generate fibers quickly. The formed fibers structure similar to industrial Lyocell, as demonstrated by XRD, SEM, IR spectroscopy. The spun fibers have superior deformation characteristics than natural fibers, their strength is equivalent to industry samples made from wood pulp.