The Relationship between Moisture Content of Human Fingernails and the Mechanical Properties of the Fingernail.
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概要
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It is well known that nail damages such as yellowing, split nails and peeled nails (onychoschisis) are caused by continuous use of nail enamel for a long period. Within serious nail damages, we aimed at split nails and peeled nails and basically investigated the relationship between fingernail moisture content and the mechanical properties of fingernails to make clear the factors affecting those nail damages. As a result, we newly developed the bending tester to evaluate split nail and peeled nail and established the method of evaluation of those nail damages. Moreover it is suggested that fingernails split easily under low fingernail moisture content and peel easily under high fingernail moisture content.
- 日本化粧品技術者会の論文
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