Select three types of M-type reactive dyes and investigate the effects of their residual liquid on the dyeing performance of pure cotton fabrics.By adjusting the process,the amount of dye,salt,and alkali added to three types of dyeing residues are determined,the K/S value and dye efficiency of the dyed fabric are calculated,and it is found that the reactive dye residue containing monochlorotriazine and ethyl sulfone sulfate dual active groups can be used for reuse.The results show that the amount of dye,salt,and alkali added during the reuse of the residual solution of Reactive Red 195 is 97.5％,25％,and 25％of the initial dosage,respectively;The amount of dye,salt,and alkali added in the reuse of residual dye of Reactive Yellow 145 is 98％,15％,and 25％of the initial dosage;The amount of dye,salt,and alkali added during the reuse of reactive deep blue M-2ge staining residue is 98.5％,25％,and 20％of the initial dosage;The dyed fabric obtained by the optimal residual solution addition process has a color difference of less than 0.6 compared with the standard sample,and the color fastness to dry friction,wet friction,and soap washing is at the same level.The results show that the dye residue process can greatly save dyes,additives,and water resources,and is feasible.
M-type reactive dyeresidual liquid reuseprocess parametercolor fastnessK/S value
万方数据
维普
