Preparation method of nanoscale reactive yellow RGB

The invention discloses a preparation method of nanoscale active yellow RGB. According to the method, micron-sized active yellow RGB is taken as a raw material, and nano-sized active yellow RGB with relatively high stability and size distribution of about 60-80nm is prepared by adopting a method of combining high-speed ball milling and freeze drying. The method is simple in preparation process, small in used equipment, small in occupied area, easy to operate and control and suitable for industrial large-scale production. 本发明公开了一种纳米级活性黄RGB的制备方法。该方法以微米级活性黄RGB为原料，采用高速球磨结合冷冻干燥的方法，制备出稳定性较高，尺寸分布在60-80nm左右的纳米级活性黄RGB。该方法的制备过程简单，所用设备小型，占地小，易于操作控制，适合工业化大规模生产。