Sheep's wool contains many impurities, such as lanolin (wool fat) and suint (wool sweat). Traditionally, wool was washed using alkaline and hot baths in tubs and special machines. However, the lanolin, which is insoluble in water, could not be separated using these methods.

This factory was founded at the beginning of the 20th century. It applied a new process that had originated in the United States. This consisted of treating the greased wool with naphtha or petroleum gasoline. After all, this completely neutral product does not damage the wool fiber. Moreover, it leaves behind only the percentage of fat necessary to maintain the natural suppleness and elasticity. The naphtha is subsequently removed from the remaining wool by means of evaporation.