Processes and applications of chemical fibre yarns

The process of making chemical fibre yarns generally consists of the following steps:

Polymerisation: polymerisation of the monomer molecules into a long chain polymer under high pressure, high temperature and high concentration conditions.

Processing: The polymer is molten and then extruded and stretched into filaments by means of a spinning machine with a high-speed rotating orifice plate or rotating column.

Curing: The stretched filament is cooled and stretched to form orderly crystals that enhance the strength and stability of the filament.

Cutting: The stretched and cured filaments are cut to make the appropriate lengths of chemical fibre yarn.

Finished product processing: The cut filaments are processed, such as dyeing, weaving, knitting and weaving, to make various chemical fibre fabrics or textiles, which are used to make garments, home textiles, etc.

It should be noted that there may be some differences in the production process of different types of chemical fibre yarns, for example, nylon, polyester and other commonly used chemical fibre yarns require subsequent processing, such as etching, coating, etc., to improve their performance and scope of application.