고견뢰도 및 고흡진율 특성의 금속 착염 염료의 개발

Development of Metal Complex Dyestuffs with High Fastness and High Adsorption

Diazotization of 2-Amino-5-nitrophenol was Synthesized by the direct diazotization method. The diazonium salts are usually stabilized in the from of double salts. The double salts of zinc chloride are the Commonest, and the double salt method is Specially applicable to the yield-up of coupling. The azo dye(2-naphthol-1-(2 -diazo-5 -nitrophenol)) is Converted into a chromium Complex by heating(100℃) with chromic formate, and DMF. Thr removal of inorganic salts from dyestuffs was performed in DMF solvent. This effect was more pronounced. From these results, It was obtained to liquid dyestuffs of metal complex with High fastness and high adsorption.