STUDY OF THE DISSIPATION OF THE ELECTROSTATIC CHARGE OF LEATHER

This work is focused on the influence of tanning, the type of finishin g, presence of carbon black and humidity on the electric conductivity of leather measured as semi-discharge time using a Rothschild Static V oltmeter. It is observed that the presence of humidity is the determin ing factor in the electrical conductivity of leather and that the infl uence of the other factors (tanning, type of finishing and carbon blac k) must be measured on dry leather. Chrome tanning and carbon black im prove the electric conductivity of leather as does mixed and cationic finishing.