염분(鹽分)과 태양광(太陽光)에 동시(同時) 노출(露出)된 염색모발(染色毛髮)의 색상변화(色相變化)

Because three sides of our country is surrounded by the sea, chances are very high for our hair to be exposed to the saline air. Expecially, during the summer vacation time on the seashore, because our hair is directly open to the strong ultraviolet and the seawater, our hair is highly likely to be damaged. Until now, there have been several researches investigating effects of the solar light exposure on the chemico-physical change of hair; however, effects of the saline water on hair have not been fully investigated. Therefore, in this thesis, the color change of the dyed hair is experimentally evaluated after dipping the hair in the saline water and exposing to the solar light. SEM images are also taken to compare and analyze the color change of the dyed hair with the degree of the surface damage. Through experiments, greater color change is measured on the hair which is dipped in the saline water with higher concentration and exposed to the solar light for longer period of time. This result means that the hair gets sensitive to the solar light leading to greater color change if the hair is affected to the saline water. Damaged hair also shows greater color change than the virgin hair because damaged hair is more sensitive to the solar light due to the surface damage. From surface investigation based on SEM images, hairs with greater color change have greater damages on its surface. Finally, the degree of color change and the surface damage of hair is greater for the hair dyed with reddish color (Black

Keywords:

• Chemistry
• Saline water
• solar light
• Horticulture
• Brown color

• Correction
• Source
• Cite
• Save
• Machine Reading By IdeaReader