Research Paper : A Study on the Hair-dyeing Effect of Tumeric Ethanol Extracts Containing Yellow-series Pigments

Park, Jung Eun; Park, Eun Jun

Journal of the Korean Society of Cosmetology 2016;22(2):273-279.
Published online April 30, 2016.

황색계 색소를 함유한 울금 에탄올 추출물의 모발 염색 효과

박정은, 박은준

Research Paper : A Study on the Hair-dyeing Effect of Tumeric Ethanol Extracts Containing Yellow-series Pigments

Jung Eun Park, Eun Jun Park

Abstract

In this study, we observed the changes in chromaticity and thickness of hair, shape of hair cuticle, and roughness of hair before shampooing and after repeating shampooing 30 times by dyeing tumeric ethanol extracts to the hairs under neutral, acidic, and alkaline condition in order to examine hair-dyeing effect of tumeric. The results were as below: Fist, L* value increased in all of the 6 hair pieces during chromaticity measurement after repeating shampooing 30 times compared to pre-shampooing chromaticity, while both a* value and b* value decreased in all of the 6 hair pieces. Moreover, no changes in color were visually observed in Curcuma 1, Curcuma 2, and Curcuma 3 after repeating shampooing 30 times compared to pre-shampooing color. Second, we examined the changes in hair thickness after repeating shampooing 30 times compared to pre-shampooing hair thickness. The results showed that the thickness decreased significantly in all of hair pieces compared to normal group. Third, hair cuticles rolled down and came off partially which resulted in swelling, unclear boundaries, and exfoliation after repeating shampooing 30 times, compared to preshampooing state. Third, the roughness of hair was found to be high after repeating shampooing 30 times, compared to preshampooing hair roughness.

Key Words: L*a*b*, Natural coloring, Curcuma, Yellow color pigment