Bichromat duptas is the most powerful tooth for wool fibers with chemical colors. this tooth will be used for garlic colors, and the amount of it will be compared to the weight of full and clear colors (1 to4). Teeth are performed with Doptops Brong after coloring, and in this case, it should be noted that 1-alpha is dissolved and not removed from it when teething uniformly. 2- When and after the teeth of the fiber, the light of the sun will be prevented because the color of that part of the fibers that is placed against the sun will be smoother and stains arise on them.