Silk broadcloth grafted cation process

The invention discloses a silk broadcloth grafted cation process. The method comprises the following steps of: performing grafting reaction on the preprocessed silk broadcloth fabric and a grafting agent at the temperature of 120 DEG C for 30 minutes, wherein the concentration of the grafting agent is 160 percent owf, and the pH value of the grafting agent is 9; and rolling and drying the grafted silk broadcloth fabric, curing at the temperature of between 60 and 70 DEG C for one hour, taking out, washing and drying. The bath ratio of the silk broadcloth fabric to the grafting agent is 1 to 40. The grafting agent is 1,2,3 glycidyl trimethyl ammonium chloride. In the process, the silk is grafted and is subjected to cationic modification, so that the silk dye-uptake and fixation rate of reactive dye can be improved; and the method has the advantages of saving energy, and contributing to clean production and environmental protection, along with simplicity and high efficiency and has wide application prospect.