1993 Fiscal Year Final Research Report Summary
DAMEGE OF HAIR FIBERS AS EVALUATED BY AN ELECTRICAL CAPACITANCE TECHNIQUE
| Project/Area Number |
04558019
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| Research Category |
Grant-in-Aid for Developmental Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
家政学
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| Research Institution | HEIAN JOGAKUIN JUNIOR COLLEGE |
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Principal Investigator |
ITO Hiraku HEIAN JOGAKUIN COLLEGE, MOME ECONOMICS, ASSISTANT PROFESSOR, 家政科, 助教授 (20213077)
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| Co-Investigator(Kenkyū-buntansha) |
WATANABE Hiroshi KAO CORPORATION, INSTITUTE OF COSMETIC, VICE MANAGER, 香粧品研究所, 副所長
YAMAZAKI Takashi KYOTO UNIVERSITY OF EDUCATION, PROFESSOR EMERITUS, 名誉教授 (80027870)
MURAOKA Yoichiro HEIAN JOGAKUIN COLLEGE, MOME ECONOMICS, PROFESSOR, 家政科, 教授 (10074147)
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| Project Period (FY) |
1992 – 1993
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| Keywords | Human Hair Fiber / Damage of Hair / Wicking Behavior / Electrical Capacitance / Wetting / Wilhelmy Principle |
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| Research Abstract |
An attempt has been made to evaluate the damage of hair fibers using an electrical capacitance technique, and the results were compared with those obtained by using the Wilhelmy principle. To this end, two types of hair fiber samples were prepared. In one type, hair fibers were oxidized with dichloroisocyanuric acid (DCCA), and in the other, the fibers were physically rubbed with sandpaper. Water transport along the hair fiber bundle was examined with an apparatus using an electrical capacitance technique. The rate of water transport increased with the degree of damage. These results were consistent with the results on the contact angle measurements carried out with a Wilhelmy type apparatus for recording the wetting force of single hair fiber in water. Therefore, we found that an electrical capacitance technique is potentially useful as a convenient evaluation of the damage to hair fibers.
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