在涤纶、丙纶、氨纶等合成纤维由单体聚合后的纺丝工程中，需要用到纺丝油剂（俗称化纤油剂），这些油剂可以调节纤维的摩擦特性，防止或消除静电积累，赋于纤维平滑、柔软等特性，提高纤维抱合力、保护纤维强力、减少断头率，使化纤顺利通过纺丝、拉伸、加弹纺纱、织造等工序。
In the spinning engineering of polyester, polypropylene, spandex and other synthetic fibers polymerized by monomers, spinning oil agent (commonly known as chemical fiber oil agent) is needed. These oil agents can adjust the friction characteristics of fibers, prevent or eliminate the accumulation of static electricity, impart smooth and soft characteristics to fibers, improve Fiber Cohesion, protect fiber strength and reduce the breakage rate, so that the chemical fibers can smoothly pass spinning and stretching. Spinning, weaving and other processes.
虽然这些油剂在合成纤维前道纺丝过程中发挥了重大作用，但在后续的碱减量、染色、印花和后整理等工序中，却会造成减量不均匀或效果变差、染色不均匀或有色点色斑等问题，需要大量的化学药品来去除。这些除油助剂除了一些酸碱外，还需要大量表面活性剂进行辅助，俗称为除油剂，而涤纶除油剂在里面所占的比例最大
Although these finishes play an important role in the spinning process of synthetic fiber, but in the following processes such as alkali reduction, dyeing, printing and finishing, they will cause problems such as uneven reduction or poor effect, uneven dyeing or colored spots, which need to be removed by a large number of chemicals. In addition to some acid and alkali, these oil removers also need a large number of surfactants, commonly known as oil removers, and polyester oil removers account for the largest proportion in them