염모제 처리 시의 모발손상도 및 모발색도의 변화 = The Effects of Hair Dyes on Hair Damage and Change in the Color of Hair

다국어 초록 (Multilingual Abstract)

A variety of cosmetic treatment is performed as the way of the pursuit of beauty according to the change in human`s life. For this reason, it is necessary to conduct the research on the methods to reduce hair damage when hair dye is treated repeatedly or after permanent wave. This study compared the group treated by permanent wave or hair dye with the control group not treated by chemical agents. There was significant chemical damage in hair cuticle damage, but neutral hair dye was found to have much lower damage. For tensile strength, alkaline hair dye was found to have much severer damage than neutral hair dye. For the maintenance of wave efficiency, neutral hair dye was much better than alkaline hair dye. In conclusion, while neutral hair dye was much lower in hair damage than alkaline hair dye, the change in the color of hair was higher in the alkaline hair dye group. Thus, when treating permanent wave and hair dye at the same time, it seems right to select alkaline hair dye only for the color of hair. However, it is recommended to select neutral hair dye to reduce hair damage.