Thesis Details

Thesis Title: Static Generation and Suppression in Staple Fiber Yarns
Thesis Author: Bradley James
Abstract: Much is known and theorized upon about how static electricity is generated, yet there is still much to learn. One of the most widely experienced effects of static buildup is caused by clothing or textile products. Spun yarns are the most widely produced yarns for apparel in the world and are often used in conjunction with antistatic treatments. This research is aimed at developing a better understanding of some of the variables that affect static buildup and dissipation within staple spun yarns. It specifically focuses on understanding the effects of blend, yarn structure, temperature, humidity, tension, and yarn speed as well as variables associated within these factors, such as hairiness and uniformity. The results indicate that environmental humidity and temperature play critical roles in how staple yarns perform. Tension plays little role into the charge generated but speed is shown to be the main contributing factor to charge generation. There are also differences observed within yarn structures as well as non-linear relationships between cotton and polyester blends. Specific reasons for this behavior based on supplemental data provided by other non-static measuring on non-electrical measuring tests are proposed. The results as well as the measuring processes themselves have led to further fields of interest in this topic which warrant further studies.