A Study of the Effect of Twist on the Properties of Synthetic Filament Yarns

摘要

As synthetic textile fibers have varied uses in today's ideas and materials, a need has been felt for an investigation into the effect of twist on synthetic yarns. It was decided that in the study of synthetic yarns, those used most in USAF materials would be evaluated. Yarns studied included five deniers of Viscose Rayon from three producers; ten deniers of nylon; four deniers of Orlon; and three deniers of Dacron. The main objective of the program was the study of the effect of twist on the following properties of the yarns: (1) Denier, (2) Diameter, (3) Breaking strength, (4) Elongation, (5) Energy Absorption, and (6) Elastic Recovery. Generally the results show that the effect of twist on any characteristic of yarn is greater for the higher denier yarns than for the low denier yarns. Detailed data are given in both tabular and graphic form, for the effect of twist on the properties of the individual yarns.