PROCESSO PARA DETERMINAR E REGULAR A CONCENTRACAO DE LONS HIDROXILA E DE PEROXIDO DE HIDROGENIO,EM UM BANHO DE ALVEJAMENTO E APARELHO PARA TRATAR UMA LAMINA DE TEXTIL

摘要

The invention relates to a method for determining the hydroxyl ion and hydrogen peroxide concentration in a bleaching bath which contains at least a solution of hydroxide and hydrogen peroxide in water, wherein the following parameters, which are related to [OH<->] and [H2O2], are measured in the bleaching bath or liquid orginating therefrom: the conductivity (G), the pH and the temperature (T), a method for regulating said concentrations in a bleaching bath, and an apparatus and a method for treating a textile web in a bleaching bath using the principle of the determination method.