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KMID : 0381920120420030129
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Korean Journal of Microscopy
2012 Volume.42 No. 3 p.129 ~ p.135
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A Study of Hair Damage by Magic Straight Perm
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Lim Sun-Nye
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Abstract
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In this study, the changes in hair quality before and after Magic straight perm have been evaluated through a hair damage measurement method. For this, a healthy high school student’s (age18 years) wavy hair was selected and permed on the left and right sides. Then, the changes caused by physical methods which were applied during the fl at ironbased Magic straight perm were evaluated based on the hair damage measurement method before and after the Magic straight perm. According to the protein release test after the Magic straight perm, 1.26% in average and 0.14% was observed in Cool Magic straight perm sample. In a fi eld emission scanning electron microscopy (FE-SEM) test, saw teethshaped partial desquamation of cuticle cells and impurities were observed in the warmtreated hair sample. In atomic force microscope (AFM), line-profile is a method to represent roughness data on hair. According to analysis on 3-dimensional (3D) images, the hair with Cool Magic straight perm was lower than the hair with Warm Magic perm in terms of the color change of 3D images. In addition, vertical changes were observed in the hair with Cool Magic perm. As a result, irregular surface roughness was observed. This study proposed a method to minimize hair damage by cooling down the heat with the cool hair straightener as soon as the Warm Magic was fi nished.
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KEYWORD
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AFM, Cool Magic straight, FE-SEM, Protein release, Line-profi le, 3D image
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