Abstract

This work is focused on the influence of tanning, the type of finishing, presence of carbon black and humidity on the electric conductivity of leather measured as semi-discharge time using a Rothschild Static Voltmeter. It is observed that the presence of humidity is the determining factor in the electrical conductivity of leather and that the influence of the other factors (tanning, type of finishing and carbon black) must be measured on dry leather. Chrome tanning and carbon black improve the electric conductivity of leather as does mixed and cationic finishing.