A measuring procedure to study the charge release capability of ESD composite textiles

The performances of ESD protective garments, made by composite textiles, depend also on the characteristics of such textiles. A tribocharging automated system has been devised and realised to perform tests on samples of such fabrics. Special testing procedures, based on an internal standard and on a suitable definition of surface voltage (representing the tribocharge) have been implemented to get structured information about the charge release capability of the relevant textiles. A model based on the best fitting techniques approach has been selected. The results tests performed on two different composites have been reported and are discussed, so to assess the validity of the approach. Finally, a group of synthetic parameters has been outlined, so allow an easy interpretation of the outcome.