COLORED LAMINAR COMPOUND AND ITS PRODUCTION

PURPOSE:To obtain a colored laminar compound which is useful in paints, ink, colored materials and cosmetics by using polynuclear complex cation as a bonding medium, to increase the binding force between clay minerals and dyes steeply to stop the elution of the dye into the solvent. CONSTITUTION:A clay mineral mainly composed of laminar compound having cationexchange ability such as vermiculites, montmorillonites and micas, is dispersed in a polar solvent, particularly water is suitable, and a solution of polynuclear complex cation, preferably polynuclear complex cation containing Al, Cr, Bi or Zr, is added to exchange the interlaminar cation with the polynuclear cation. Then, an anion dye is added, mixed to effect the reaction to give the subject colored laminar compound in the form of a complex of the clay mineral with a polynuclear complex cation and onion dye.