흰 모발과 흑갈색 모발의 영구염모제 염색 전·후 미세구조 변화
Microstructural Changes in Gray and Blackbrown Hairs Before and After Permanent Hair Dyeing
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초록
In the present study, microstructural changes in gray and black-brown hairs before and after permanent hair dyeing were examined using a light microscopy (LM), edge three-dimensional (3D) digital microscopy, and scanning electron microscopy (SEM). The LM and edge 3D digital microscopy revealed the existence of medulla in the center of the hair, both before and after dyeing. The SEM revealed that the surface of black-brown and gray hair was smooth with well-arranged scales. Moreover, parts of some cuticle cells that were exposed to the external environment were found to be separated from their adjacent cuticle cells, forming a gap between them. The surfaces of the blackbrown and gray hairs were found to become much rougher after dyeing than those before dyeing. The edges of the cuticle cells were sharp and irregular and some of the edges were even missing, revealing endocuticles attached to the underlying cuticle cells. Under high magnification, the cuticle cells were observed to be cracked or broken and detached from the underlying cuticle cells.
Abstract
In the present study, microstructural changes in gray and black-brown hairs before and after permanent hair dyeing were examined using a light microscopy (LM), edge three-dimensional (3D) digital microscopy, and scanning electron microscopy (SEM). The LM and edge 3D digital microscopy revealed the existence of medulla in the center of the hair, both before and after dyeing. The SEM revealed that the surface of black-brown and gray hair was smooth with well-arranged scales. Moreover, parts of some cuticle cells that were exposed to the external environment were found to be separated from their adjacent cuticle cells, forming a gap between them. The surfaces of the blackbrown and gray hairs were found to become much rougher after dyeing than those before dyeing. The edges of the cuticle cells were sharp and irregular and some of the edges were even missing, revealing endocuticles attached to the underlying cuticle cells. Under high magnification, the cuticle cells were observed to be cracked or broken and detached from the underlying cuticle cells.
참고문헌 (13)
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