Synthesis And Application Of Reactive Dyes Based On 1,4-Naphthoquinone

Naphthoquinone dyes(Lawsone),due to its natural and harmless characters.It is used as a dye of textile for young children.In addition,it has anti-corrosion effect.Its development and utillization have wide prospects.This topic with artificial biomimetic synthesis method of synthesis of naphthoquinone.But the dyes have many obvious flaws,such as water soluble is poorer,firm put small,dyeing single fiber,etc.This study of biomimetic synthesis of nail quinone artificial modification at the molecular level.Experiment,1-aminobenzene-4-?-sulphatoethylsulphone(Para ester) and 1-aminobenzene-3-?-sulphatoethylsulphone(Between a ester) with nails after diazotization quinone coupled to generate the corresponding reactive disperse dyes.Experiment, 1-aminobenzene-2-sulfo-4-?-sulphatoethylsulphone(Sulfonated para ester) with nails after diazotization quinone coupled to generate the corresponding reactive dyes.Introduction of azo group can obviously make nails quinone blueshift,and can rich chromatography obviously.For the Para ester as diazo component synthesized a reactive disperse dyes,the best dyeing conditions were studied and gaves:the time of dyeing was 70 minutes,the ratio of dyeing bath was 1:50,and pH of the dye bath was 10. For the Between a ester as diazo component synthesized a reactive disperse dyes,the best dyeing conditions were studied and gaves:the time of dyeing was 70 minutes,the ratio of dyeing bath was 1:50,and pH of the dye bath was 10. For the Sulfonated para ester as diazo component synthesized a reactive disperse dyes,the best dyeing conditions were studied and gaves:the time of dyeing was 40 minutes, the temperature of dyeing was 70℃,and pH of the dye bath was 9.