Dope Dyed Viscose Fibers from Black Liquor Treated Carbon Black

Black liquor (BL), a byproduct generated during the kraft pulping process, was used as a source of alkaline lignin (AL) to stabilize aqueous dispersions of carbon black (CB). Black liquor-treated carbon black (BL-CB) samples were prepared by varying the BL/CB/water ratio and characterized by scanning electron microscopy (SEM), thermogravimetric analysis (TGA), and Brunauer-Emmett-Teller (BET) surface area. Improvement in dispersion of BL-CB with increased BL content was observed. The dope dyed viscose fibers were spun by addition of BL-CB to the viscose solution. These fibers exhibited deeper color strength than those obtained from conventional CB formulations at a comparable CB loading on the fiber.

Study on Property of the Fiber Made from the Mixture of Sarcandra Glabra Extracts and Rayon Cellulose

Added sarcandra glabra extracts into cellulose viscose solution, make the two blends together to spin, and get functional viscose fiber with the nature antibacterial function. The test result shows that mixed sarcandra glabra extracts has no bad effect on the basic mechanical properties of the viscose fiber and the viscose fiber has the good antibacterial performance.

Preliminary Studies on Washing Durability of Fire-Retardant Viscose Fiber

In order to improve the washing durability of fire-resistant viscose fiber which was preparated by blending technology, self-made aziridine series crosslinker was added in the fire-resistant viscose solution in the experiment and crosslinked with some hydroxyl groups of the cellulose during the coagulation bath, network structure was formed in order to prevent the flame retardant loss in the process of washing. The LOI of flame-retardant viscose fiber after washing was greatly improved.