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- 井上 滋登
- 花王株式会社解析科学研究所
書誌事項
- タイトル別名
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- Structures and Properties of Hair Surface
- モウハツ サイヒョウメン ノ コウゾウ ト ブッセイ ダメージ ニ ヨル ヘンカ ト カイシツ ギジュツ
- —ダメージによる変化と改質技術—
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抄録
18-Methyleicosanoic acid (18-MEA) is an unusual branched-chain fatty acid that is covalently bounded, possibly via a thioesteroresterlinkage, to the cuticle surface of hairfiber s. It is also known that the lipid layermakes the hairsur face hydrophobic and acts as a boundary lubricant to decrease friction resistance. 18-MEA can be easily removed; however, underalkaline conditions such as in the presence of hairbleach orper manent waving, the hairsur face becomes hydrophilic and the friction increases. The absence of 18-MEA may influence the sensory perception of hair, making it feel dried or hard to finger/comb through. We also found that exposure to ultraviolet (UV) radiation affects 18-MEA on hair surface using Time of Flight Secondary Ion Mass Spectrometry (TOF-SIMS). We therefore think it is important to study the damage to boundary lipids caused by the external stimuli in daily life. A technology for the deposition of a persistent hydrophobicity to bleached hair surfaces using 18-MEA is reviewed. It was found that the combination of 18-MEA with specific cationic surfactants system makes the bleached hair surface hydrophobic, and its hydrophobicity is maintained even after shampooing. Characterization of adsorbed layers on a mica surface was performed using Atomic Force Microscopy (AFM). The results revealed that system formed an uniform layer with high wear resistance.
収録刊行物
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- 表面科学
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表面科学 32 (5), 287-293, 2011
公益社団法人 日本表面科学会
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詳細情報 詳細情報について
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- CRID
- 1390001206458503680
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- NII論文ID
- 10028287693
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- NII書誌ID
- AN00334149
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- ISSN
- 18814743
- 03885321
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- NDL書誌ID
- 11072415
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDL
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