Method for producing yarn from sugarcane

A method for producing a yarn from sugarcane, comprising the following steps:

• S1:
• separating bagasse and a sugarcane juice produced by pressing sugarcane, and dividing the bagasse into two parts, one part being used for extracting natural fibers from the sugarcane and the other part being used for extracting starch fibers from the sugarcane;
• S2:
• extracting natural fibers from the sugarcane to obtain a raw material for preparing long fibers;
• S3:
• extracting starch fibers from the sugarcane to obtain a raw material for preparing short fibers;
• S4:
• softening a raw material of long fibers and a raw material of short fibers;
• S5:
• performing a decolorize treatment on the raw material of long fibers and the raw material of short fibers that have been softened to render fiber color tend towards white for a subsequent dyeing process;
• S6:
• twisting the raw material of long fibers processed in S5 to form the long fibers;
• S7:
• twisting the raw material of short fibers processed in S5 to form the short fibers;
• S8:
• mixing the long fibers and the short fibers to prepare a bobbin yarn with a ring spinning manner;
• S9:
• performing oxidization and desizing of the bobbin yarn, and pre-shrinking of the bobbin yarn at 130° C., adding a refining agent during a pre-shrinking process to remove impurities;
• S10:
• performing a causticizing treatment on the bobbin yarn to render the bobbin yarn have strong swelling to improve flexibility and reduce stiffness;
• S11:
• performing an enzymatic treatment of the bobbin yarn to improve a finish degree of raw materials, reduce a bending resistance and a stiffness of the fibers and further improve a hand feel;
• S12:
• reducing and washing the bobbin yarn to control a pH to be 4.5-5.5;
• S13:
• drying the bobbin yarn after restoration and washing;
• S14:
• stretching and shaping dried bobbin yarn and stacking.