The Probert Encyclopaedia of Science & Technology

MORDANT

A mordant is an adhesive compound capable of uniting with dye-stuffs to form insoluble pigments, and thus, if the reaction is made to take place in the fibres of a fabric, fix the colour in it. Mordants are mostly used in cotton and wool dyeing, and also in gilding to attach gold leaf and in paints intended for non-ferrous metal surfaces so as to etch the surface and provide better adhesion for the pigment.
Research Mordant