Wool primary processing is commonly known as engineering.

Wool primary processing is commonly known as raw wool preparation project. According to relevant information, wool primary processing is also called raw wool preparation project. It is a processing process of classifying raw wool according to quality and removing impurities such as sweat, fat, feces, sand and grass thorns. The main processes are wool selection, opening, washing and drying. If necessary, it needs to be carbonized to remove weeds. In ancient China, the primary wool processing included three parts: picking wool, cleaning wool and bouncing wool. Picking wool refers to collecting wool fibers. Cleaning refers to removing grease and impurities attached to raw wool. Wool elastic band is used to loosen washed and dried wool into loose single fibers for spinning. After these three main processes, wool can be used for textile.