The comfort and quality of cloths depends on the slipperiness and smoothness of textiles evaluated by the touch of human skin. The measure is the friction coefficient displayed by sliding of textiles against human skins or other textiles. The wide use of polymeric fibers in textile industry increased the interest in investigating their electrostatic effect during contact and separation as well as sliding on cotton and human skin. The electrostatic charge generated from the friction of polytetrafluoroehylene (PTFE) strings against cotton was tested. The present work discusses three proposals to reduce ESC generated on the surface of PTFE strings. The first included mixing PTFE by different content of PA strings of 0.4 mm diameter, while the second was applied by using Al film as substrate to release ESC from the contact surface. The third group proposed reinforcing PTFE by aluminium (Al) wire, copper (Cu) wire and carbon fibers (CF). It was found that, reinforcing PTFE by cores of conducting materials such as Al, Cu wires and CF to release ESC from the surface represented the most effective proposal, where Cu core was the best followed by CF and Al.
A. S. Ali (Mon,) studied this question.