earticle

영어

To examine the ingredients of natural hair dye, bleached hair in 7 level was dyed with henna of oxidation hair dye and natural hair dye on the market and then it was dyed with black rice ethanol extract processed by acid or alkali. The coloring, fastness of color and hair damage have compared and analyzed in terms of physical change, observation with the naked eye and microscope. As a result, hair processed by black rice in 3 ways is superb in coloring and fastness in terms of observation with the naked eye, brightness, redness and yellowness. Moreover, black rice-processed hair is considered to be better in thickness, tensile strength and the thickness of hair epidermis compared to oxidation hair dye and be less damaged; therefore, it is dyed peachblow and khaki so it is very practical in stylish dye.