Study on the chemical modification of wool and its dyeing performance with cationic dye

An anionic modifier for wool was synthesized.The properties of modified wool such as whiteness,alkaline solubility,breaking strength and extensibility were determined.The influence factors on dye-uptake of cationic dye for modified wool were investigated.The friction fastness,soaping fastness of modified wool after dyeing were also tested.The experiment result showed that the mechanical properties of wool were not changed after modification with the anionic agent,the dye-uptake of cationic dye was above 80% in the condition of 100 ℃,pH 5 and 60 minutes,and the dyeing fastness was high.