Delustering high-strength low-elongation viscose fiber preparation technology

The invention discloses a delustering high-strength low-elongation viscose fiber preparation technology. The delustering high-strength low-elongation viscose fiber preparation technology particularly includes the steps of dipping pulp materials in alkali liquor, grinding to form thick pulp, subjecting the thick pulp to grinding, smashing and rubbing, adding pure oxygen to perform orientated depolymerization, removing the alkali liquor to obtain alkali cellulose, subjecting the alkali cellulose to yellowing and dissolving to obtain a cellulose sulphonate solution, and subjecting the cellulose sulphonate solution to filtering, deaeration, ripening, spinning drawing and post-processing to obtain a delustering high-strength low-elongation viscose fiber. The delustering high-strength low-elongation viscose fiber is a novel viscose fiber, is lower than a modal fiber in production cost, and has great economic benefit and social benefit.