Colour marble prodn. - by contacting natural white marble with mixt. of aniline dyes and linseed oil followed by drying

摘要

Coloured marble is made by contacting natural white marble with a mixt. of aniline dyes and linseed oil at 20-40 deg. C until the dye has been completely absorbed, then drying in air or at 40-50 deg. C in an oven.