Using nickel electrode as dyeing electrode, sodium carbonate as fixing alkali and anodic region as dyeing region, cotton fabric was electrochemically dyed by reactive blue X-BR under external DC power supply. By comparing the dyeing rate, fixation rate, polarization curve and evenness of the two dyeing methods, it can be concluded that the electrochemical dyeing effect of nickel electrode on reactive dye cotton fabric is far better than that of traditional reactive dye dyeing method.

For environment-friendly dyeing, electrochemical dyeing method was researched. The low consumption of additives during dyeing is beneficial to environmental protection,and the electric field of electrochemical dyeing reduces the salt. Moreover, the K/S value of the fabric increases significantly at the same dye concentration. The alkaline electrolyte in the electrolytic cell may enhance the self-corrosion of the electrode during the electrochemical dyeing process. The results show that the electrochemical dyeing can reduce the amount of additives during the dyeing process.