헤어스타일링 시술과정에 의한 모발 손상도

The Degree of Damage by Hair Styling

&nbsp;&nbsp;The study was conducted to observe the morphological changes of hair which could be damaged by continuous treatment of permanent wave and coloring. Degree of damage were measured by cuticle changes and swelling level of hair. Hair were sampled from six women who were 20 ~ 23 years old and their hair had never been treated chemically.<BR>&nbsp;&nbsp;The hair of each person were divided into 4 groups, which of them, 2 groups were treated to permanent wave and the other 2 groups were coloring treatment. Samples in each group were treated in 20℃ for 20 minutes, 40℃ for 20 minutes, 20℃ for 40 minutes and 40℃ for 40 minutes. And then, morphological changes of them were observed with the electron microscope of scanning type.<BR>&nbsp;&nbsp;The obtained results were as follows:<BR>&nbsp;&nbsp;1. The cuticles in untreated healthy hair were coarse, elaborate and regular arrangement, which in permanent groups, they were depressed and rubbed, and even crumpled or wrinkled when treated in 40℃.<BR>&nbsp;&nbsp;2. In coloring treatment groups, there were more total peeling off and falling off than permanent wave groups, and at 40t even cuticles were exposed. In conclusions, the order of permanent wave and coloring treatment did not influence on the morphological changes of hair but when temperature was higher and time was longer, cuticle changes and swelling level of hair were damaged more severely