Journal Textile Coloration and Finishing Year / Vol., Issue, Month 2023 / V.35,no.4,Dec Title Coloration Level by Bleaching Frequency and Hair Dye during Hair Coloring Authors So Hee Yu and Sun Nye Lim Institution/Affiliations Dong Shin University Pages/Total page pp.206 ~ 213 / 8 Language Korean Abstract This study attempted to investigate what color would fade more during hair bleaching and examine what should be done to make hair color last longer. For this, hair was colored differently in ash gray with permanent hair dyes and semi-permanent hair dyes each. Hair in multiple levels was created through such bleaching. Color retention was improved in consideration of the degree of color fading in sample hair. In terms of post-bleaching hair coloring, it was more efficient to color hair by eliminating redness without hair damage after shampooing with a permanent hair dye. Therefore, it is anticipated that the study results would be highly useful for beauty salons to find a base level in consideration of bleaching effects and make improvements according to hair retention and moisturizing effects. Keywords hair bleaching, shampooing, hair dye, permanent, semi-permanent Download   Reference http://koreascience.or.kr/journal/OSGGBT.page