Texturing is the permanent crimping of smooth filaments. Thermoplastic multifilament yarns are suitable for texturing. The crimping is thermally fixed in the fiber by the application of heat. Texturing processes include false wire texturing, friction texturing, and false twist texturing.
Source:
Eberle, Hannelore; Gonser, Elke; Hornberger, Marianne; et al. (2022), Fachwissen Bekleidung, 12. Auflage, Haan-Gruiten: Verlag Europa-Lehrmittel, S. 63