Method for preparing regenerated cellulose fiber dyeable with natural dye

• Main Authors: LU, Peng, YUAN, Hongbing, MAO, Jun, CHEN, Hongxia
• Format: Patent
• Language: English
• Published: 24.12.2020
• Subjects: APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBONFILAMENTS; CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS,THREADS, FIBRES, BRISTLES OR RIBBONS; NATURAL OR ARTIFICIAL THREADS OR FIBRES; SPINNING; TEXTILES

The present invention discloses a preparation method for a natural dye-dyeable regenerated cellulose fibre, the preparation method including steps of: firstly, adding a chitosan solution into a viscose spinning solution to prepare a viscose spinning solution-chitosan mixed solution, then adding a tannin solution, mixing the same, then performing reaction sufficiently, and finally performing wet spinning on the obtained tannin-viscose spinning solution liquid, so as to prepare the natural dye-dyeable regenerated cellulose fibre. After the prepared regenerated cellulose fibre is dyed by a natural dye, yarn or fabric made by the fibre has various good color fastness and can meet the production and administration.