Use of Reactive Dye Extracted from Wastewater for Printing
Reactive dyes are currently the most popular dyes for textiles with their consumption rating up to 30% of textile dyes consumption worldwide.This is due to various advantages of the dyes including color brilliance, ease of application, can be used in many types of fibers etc.However, this dyes have poor exhaustion during dyeing, more than 30% of reactive dyes used are passed on into dye house waste water.This amount of dye waste is so huge that it negatively impact on the dyeing cost and also has a big environmental effect if released into environment.Efforts to reuse these dyes for dyeing have not been successful largely due to the fact that after dyeing process the waste dyes are mainly hydrolyzed thus lacking affinity for fibers.In this paper we have investigated the possibility of reusing these hydrolyzed reactive dyes for printing which does not require affinity.We have screen printed cotton fabric with extracted hydrolyzed dyes from industrial waste water.Wash fastness and rub fastness of 3/4 and 4 were obtained respectively which are very acceptable for low priced products like promotional materials.This study is in line with efforts being made to develop green manufacturing technologies so as to conserve our environment.
reactive dyes cotton hydrolyzed printing
Lodrick Makokha Wangatia Senelisile Moyo
Ethiopian Institute of Textile and Technology (EiTEX), Bahir Dar University-Ethiopia;School of mater Ethiopian Institute of Textile and Technology (EiTEX), Bahir Dar University-Ethiopia;Department of c
国际会议
2016 Sino-Africa International Symposium on Textiles and Apparel (SAISTA2016)(2016中非纺织服装国际论坛)
蒙巴萨
英文
288-290
2016-08-02（万方平台首次上网日期，不代表论文的发表时间）