Odourless pigments and fillers contg. sulphide

摘要

Odourless pigments and/or fillers contg. sulphide are obtd. by treating the pigments/fillers with an aq. soln. of a readily soluble Zn salt. The method of treatment is also claimed, in which the pigments or fillers or their aq. suspensions are mixed with the Zn salt soln., pref. in an amt. of 200-300 mg Zn/kg pigment or filler, then the mixt. is dried.