Influence of nano silver loading on dyeing property of cotton fabric

In order to promote the development of functional cotton textiles and improve the applicability of antibacterial finishing with nano silver in dyeing and finishing of cotton fabric,silver ammonia solution was applied to form nano silver by in-situ reduction method.In combination with cotton fabric dyeing,the influence of nano silver loading on dyeing rate were investigated,and also the influence of treatment sequence whether dyeing before fininshing or finishing before dyeing on shade of treated fabric was evaluated.Shade change of dyed fabric after washing,antibacterial property and washing durability were determined.The results showed that influence on dyeing rate by loading nano silver was related to the concentration of silver ammonia solution and dye structure.Increasing the concentration of silver ammonia solution would lead to significant changes of shade,and the shade change was more seriously for dyed fabric followed by finishing.Besides,cotton textiles prepared by two processes had favorable antibacterial properties and washing durability.The strength decreased by about 15 percent.