CONTINUOUS DYEING OF CELLULOSIC TEXTILE BY RUBIA TINCTORUM EXTRACT USING SOL-GEL METHOD

Abstract

. In this article considers a new method of dyeing cotton fabrics using solgel method wiht natural plant origin dyes. The modified sol-gel method, allowing formation on the fiber a functional barrier coating of silicon oxide, which includes a plant dye. Application of this fixation method allows reducing the yield of the dye from the fiber significantly, as well as introduce additional agents for polyfunctional finishing of textile materials, therefore the method can be referred to the methods of functional depomaterials production. The effect of processing parameters on the intensity and color stability of the obtained materials was studied. The method scanning electron microscopy used for study the surface structure of the treated fibers and to obtain evidence of the presence silica coating. The existance of silicon oxide is also confirmed by the availability of its absorption peaks by Fourier-transform infrared spectroscopy (FTIR).