Bright blue light pink to red colorful blue-ray. Greyish-white to pink powder, soluble in water, water solution is red-blue light, not soluble in ethanol and other organic solvents: the strong sulfuric acid for green light olive, and for the red light purple diluted. Its water solution has fluorescence, under fluorescent light for purple, salt, and is very sensitive to light. Mainly used for cotton fabric dyeing and printing, although have brittle because its bright light is still widely used. It can direct printing, printing, and dyeing discharge printing. Will dye polyester/cotton, Peacekeeping/cotton, and wool, silk fabric, etc. Use polyester melt method dye, the color than cotton bright-colored.