The invention provides a semi-dull low-elongation
viscose fiber as well as a preparation method and application thereof. The
viscose fiber is obtained by sequentially performing soaking,
grinding, squeezing crushing, kneading, directional
polymerization reduction, yellowing, dissolving, filtering, defoaming, curing,
spinning drawing and after-treatment on a pulp
raw material, and has an
index system that the dry fracture strength is more than or equal to 3.10cN / dtex, the wet fracture strength is more than or equal to 1.60cN / dtex, the strength needed for generating 5% of the elongation in a wet state is more than or equal to 0.55cN / dtex, the dry elongation at break is 12-14.5%, and the wet fracture
extensibility is 16.0-21.0%. The semi-dull high-strength
viscose fiber provided by the invention is prepared by virtue of
technical innovation, is a novel fiber variety which has an
index system different from that of ordinary viscose fibers and
Modal fibers, shows high and strong fiber characteristics, and also shows
skin affinity stronger than that of cotton fibers, so that the
viscose fiber can effectively replace the existing differentiation
viscose fiber, the development and the industrial upgrading of downstream novel textiles can be promoted while the processability of the downstream process of the
viscose fiber is improved, and the semi-dull low-elongation viscose fiber can be well applied to the field of production of jean fabrics.