| Use | reactive Violet K-3R can be used for dyeing cotton, viscose fiber and direct printing of fabrics. It is mainly used for direct printing of cotton fabric, with high amount of color, which can be printed with deep color, light is not bright enough, and slightly yellow light. Often with the activity of brilliant red K-2G, active Alexandrite K-GL fight a variety of purple. It can also be used for silk fabric printing and dyeing, wool fabric printing, nylon dyeing. Reactive Violet 2 is a chemical dye, which can be used to prepare liquid laundry detergent formulations, Nano oxide composite pigments, etc. |
| production method | with 3-amino-4-hydroxybenzenesulfonic acid, H acid, cyanuric chloride, sulfanilic acid, copper sulfate as raw materials, first, 3-amino -4-hydroxybenzenesulfonic acid was diazotized and coupled with H acid, and then copper sulfate was used to complex the dye matrix. Then cyanuric chloride was condensed with sulfanilic acid, the condensation product is then subjected to a second condensation with the copper complex dye precursor, salting out, filtering, and drying to obtain a finished product. |
