| 손상모발에 있어서 PPT제 처리 후의 물리, 화학적 변화 |
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신임순, 이주영 |
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| Research Paper : Chemical and Physical Changes in the Hair after Processing with a PPT on Damaged Hair |
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Im Soon Shin, Ju Young Lee |
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| Abstract |
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With dyeing wig was the material, hair treatment with PPT, type was repeatedly processed for 3 times and permanent was repeated consecutively for 3 times. Therefore, changes in the cuticle layer were observed using an electron microscope to find the effects of hair treatments on the damaged hair. Then, elongation and tensile strength were measured and the following results were obtained. First, the control group with no hair treatments showed a mild degree of cuticle status but the cuticle was extremely unstable with almost half of it falling off. In hairs with 2 and 3 consecutive treatments with permanent showed loss of most cuticle layers and some of them even had holes. Especially, the 3 time treatment group showed extremely severe damage with exposure of cortex from cracks. Second, looking at the surface of hairs that received permanent after PPT processing showed stable cuticle layer in comparison to the control group. Magnified view also was more stable than the first treatment. Third, tensile strength and elongation of the control group was found to be 110.0 and 60.1. As a result of tensile strength and elongation measurements after 1, 2 and 3 permanent operations on the hairs of the control group, they were found to be 106.0, 104.4 and 102.0 for tensile strength and 58.8, 56.7 and 58.4 for elongation, respectively. However, tensile strength and elongation after 1, 2 and 3 consecutive permanent operations with PPT processing were found to be 104.2, 99.9 and 83.3 and 57.8, 57.7 and 53.8. |
| Key Words:
Damaged Hair, Hair Treatment, PPT Type, SEM |
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