It is made of polyether, surfactant, antistatic agent and special additives, etc. The oil has good smoothing performance, high oil film strength, effectively reduces the generation of wool during processing, and has good antistatic performance and clustering performance. The oil has good hydrophilicity and is easy to wash with water, which is beneficial to the subsequent dyeing process. During the DTY process, the cleaning cycle of the hot box can be extended to more than 45 days.