Experimental research on dissipative textile structures

Man-made fibers have the propensity to generate static electricity which becomes dangerous for electronics and individuals. There are many efforts to diminish the accumulation of the electrostatic charges through using the dissipative structures. In this paper an analysis of the dissipative properties of various types of textiles is done. The experimental determinations have been made on the various samples of double-layer textile structure consisting of cotton fibers and fibers with trilobal shape conducting core surrounded by a sheath of polyester. The apparent surface and volume resistivities are obtained of order 10¹², showing the dissipative properties of this class of textile It was determined surface and volume resistivities and electrical charge dissipation capacity has put in evidence through protection coefficient and charge decay time of electrical charge. Test method used to characterize the electrical charge dissipation capacity was electrical induction charging method. Assessing the charge dissipation capacity has been characterized by the obtained coefficient of protection, within the limits 0.78-0.92. The charge decay time of the samples is of order 50-150 ms, proving the capacity to dissipate electric charges.