In this complex process which involves multiple phases, each of which requires optimal conditions to guarantee the quality of the final product, additives and treatments are used to improve the workability and yield of the fibers during spinning. These auxiliary materials may share some properties with lubricants, while serving specific purposes within textile production.

The use of lubricating agents could be used to reduce friction between fibres, allowing greater workability and facilitating spinning itself thanks to its anti-static properties.