You can fight at two times. 1) Before the start of carpet tissue and through anti-degrading raw materials that are performed in two forms: (1) with natural colors including rins, pomegranate skin, particulate skin, walnut skin, yellow, red, hair leaf. To counter-degrading wool fibers with natural colors, they add anti-deed materials to the color bath. You are with unnatural and chemical colors such as Nile and Dutch. The way to act in both cases is that after the full color and washing of wool or cream, by adding an anti-bought solution and changing the temperature of bath water, raw materials are called counter-deserved in a way that is described in specialized books. (b) After the carpet is woven and by washing it: If the raw materials of the rug are not undisturbed, it can be countered after it is woven. To do this, the carpet is filled with anti-dose materials and repeats it every few years.