Synthesis Of Color Surfactants-fatty Amido Acid Blue Black 10B And Studies On Their Properties

Surfactants are used widely as auxiliary agents in textile and dyeing industries. They are treated as effluents after used, which cause pollution to our environment. Although there are many researches about surfactants and dyestuffs respectively, the reports of combining these two functions together are very few. In this article, a series of new compounds with both color and good surfactivity were designed and synthesized based on the structures of Acid Blue Black 10B and surfactants.Such BAS compounds with simple molecular structure have been synthesized in the report of our group. There is no denying that BAS has surfactivity, but it is wrose in dyeing effect compared with commercial dyes. The ratios of dyeing are low, and the colors are shallow, so it still cannot reach the aim we expected. In order to improve the dyeing effect, the structure of commodity dyestuff Acid Blue Black 10B is employed to synthesize the target compounds. When the long alkyls were introduced to Acid Blue Black 10B, a series of final compounds the fatty amido Acid Blue Black 10B is obtained. Fatty amido Acid Blue Black 10B compounds show a good performance in dying effect and surfactivity. They also dye fast on cotton cloth, and behave great improvement of dyeing ratios compared with Acid Blue Black 10B. When the length of alkyl chain increases, their water solubility decrease quickly and limits the dyeing effect and surfactivity partly.Thought these pilot studies, the design of zao compound with surfactivity can work by combining the long chain alkyls and Acid Blue Black 10B together. It is possible to show some functions of surfactant when they are dyed on textile, so it have a good ability in taking oil away.