Comparative Studies on Degumming of Cotton Bast Fiber

The paper compared with three degumming process of cotton bast fiber,based on the deflection,residual gum ratio and lignin.The boiling time and the concentration of NaOH were influenced on the residual gum ratio;Adding the sodium sulfite and the sodium sulfide in first boiling,the lignin of the cotton bast fiber would been down.The smaller content of lignin is,the higher deflection the fiber has.