THE METHOD OF MANUFACTURING PIGMENTS USING NATURAL DYESTUFF, THE PIGMENTS MANUFACTURED BY THE METHOD AND THE USE FOR THE PIGMENTS

摘要

PURPOSE: Blue pigments are provided to exhibit blue-based various colors using environment-friendly natural dye and to enable the application to print ink, dye for printing, and paints. CONSTITUTION: A method for preparing the blue pigments using natural dye comprises the steps of: (i) preparing natural dyes; (ii) dissolving water in potassium ferrocyanide to prepare a potassium ferrocyanide solution; (iii) mixing the potassium ferrocyanide with natural dye; (iv) mixing ferrous sulfate monohydrate with water to prepare an iron dye liquid; and (v) mixing the mixed liquid of step (iii) with the iron dye liquid.