Abstract
Fashion Technology & Textile Engineering introduces pioneering technologies, and improved understanding of textile materials, processes, chemistry and systems. It will encourage interdisciplinary research which will share newly developed technology, theory and techniques in the fashion and textile
Highlights
Mini ReviewCurr Trends Fashion Technol Textile Eng Copyright © All rights are reserved by Philip CW Cheung
Ever since the synthesis of the first metallizable azo dye, alizarin yellow, from diazotized 4-nitroaniline and salicylic acid by the German chemist Rudolf Nietzki in 1887, followed by the synthesis of the first metallizable 2-2’-dihydroxy azo dye by E
New metal azo dyes are continuously being synthesized and reported, e.g., Myek et al [4] synthesized a new azo dye and its iron complex with the organic ligand being 3-aminophenol; Van et al [5] produced a set of novel complexes of bispyrazole azo dyes for chemical fibers, each dye containing one of these metallic ions: Ag+, Fe3+, Co2+, Ni2+ or Cu2+; Hussain et al [6]; El-Wakiel [7]
Summary
Curr Trends Fashion Technol Textile Eng Copyright © All rights are reserved by Philip CW Cheung. Submission: November 11, 2017; Published: October 01, 2018 *Corresponding author: Philip CW Cheung, Department of Chemical Engineering, Imperial College, South Kensington, London, United Kingdom; Email: Abstract. The relative non-toxic metal azo dyes present in wastewaters may be transported to long-distances where the metallic ion and the azo ligand may separate and manifest their own ecotoxicities. The environmental factors which can affect this may be too complex to monitor, and the case of on-site treatment at dye manufacturing or textile facilities is developed in this narrative. A simple mono-azo dye, namely, Eriochrome Black T, is introduced to illustrate molecular structures of metal azo dyes and possible candidate for ad hoc, preliminary testing of future treatment methods
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