How do you purify the felt from the felt factory? In the production of felt products, in order to produce better quality felt products, removing the impurities in the wool fiber is an important work and the first task. Contains some impurities in wool sweat physiological quality, there are some doping from the environment of impurities, such as soil, grain, grass etc.. The purification rate is felt manufacturers regain rate conditions as percentage of species share the weight of wool fiber in wool wool, low rate in general about 1/2~1/3, for use in the production of leather, wool blankets blankets manufacturers under Mao Jingmao foot rate of about thirty percent to about forty percent. In the production of civilian blankets, such as Mongolia blankets, warm blankets, blankets and other raw materials only through dirt and impurities, generally not washed hair.