著者

宮澤 清 田村 宇平 勝村 芳雄 内川 恵一 坂本 哲夫 富田 健一

出版者

Japan Oil Chemists' Society

雑誌

油化学 (ISSN:18842003)

巻号頁・発行日

vol.38, no.4, pp.297-305, 1989-04-20 (Released:2009-11-10)

参考文献数

26

被引用文献数

3 2

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The influences of six representative surfactants on hair and the scalp were investigated under various conditions such as : irritation, protein denaturation, sorption onto commercial hide powder or keratin powder, change in turnover time of the stratum corneum, dandruff and disintegration of the cuticle.1. Influence of surfactants on scalp.Although the cumulative irritation test, 48-hour closed patch test, and immersion test were performed to assess the irritating effects of surfactants, the results did not agree with each other. The immersion test, which makes essentially the same use of surfactants, gave results in close agreement with those for sorption of sufactants or protein denaturation by surfactants.Amounts of surfactants sorbed by hide powder.Irritation score of immersion test : r=0.671.Amounts of surfactants sorbed by keratin powder.Irritation score of immersion test : r=0.930.Per cent denaturation of OVA by surfactants.Irritation score of immersion test : r=0.880.Turnover times of the stratum corneum due to the surfactants were found to follow the order, AMT≤AGS≤L-Soap≤AP<LS≤ES.Examination of the amounts of dandruff as observed when using AMT shampoo and ES shampoo, each with a different effect on the turnover time of the stratum corneum, showed the amounts to differ remarkably according to the surfactant used.2. Influence of surfactants on hair.The extent of disintegration of cuticle by a surfactant supersonic treatment was found to have the following order : AMT≤AGS≤AP≤ES<LS<L-Soap.Based on the above results, AMT can be a good surfactant as a detergent for the hair and scalp.

著者

宮澤 清 田村 宇平 富田 健一

出版者

Japan Oil Chemists' Society

雑誌

油化学 (ISSN:18842003)

巻号頁・発行日

vol.39, no.11, pp.925-930, 1990-11-20 (Released:2009-10-16)

参考文献数

23

被引用文献数

2 2

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Properties of N-acyl-N-methyltaurate(AMT), including surface active properties, cutaneous effects, influence on hair, and application to liquid type hair shampoo, are reviewed.It has been found that AMT exhibit considerably high safety on skin in comparison with typical surfactants. As the result of cutaneous effects, the reduction of the amounts of dandruff was observed when using AMT shampoo.In addition, AMT shows weaker action on the desintegration of hair cuticle.Consequently, AMT can be a good surfactant as a detergent for the hair and scalp(skin).On the other hand, cutaneous effects and physico-chemical properties of anionic/amphoteric surfactants mixed system, were investigated.It has been found that these physico-chemical results were in good correlation with those pbtained by cutaneous effects. The synergistic reductions in cutaneous effects were observed as well as physico-chemical results.These findings have promoted the development of hair shampoo composed of AMT.