USE OF LAMELLAR SILICATES CHARGED WITH QUATERNARY AMMONIUM COMPOUNDS AS SAPONIFYING AGENTS IN SAPONIFICATION PROCESSES FOR FIXING DYES

摘要

Natural swellable lamellar silicates of the type bentonite and lamellar silicates synthetic crystalline phase smectite-type but having an increased content of bound alkali and silicate and a swellability clearly reduced in aqueous suspensions with respect to the lamellar pure such silicates can be used, after being loaded with between 1 and 15% of their weight of quaternary ammonium compounds, such saponifying in the dyeing and printing of textiles.