著者

芋川 玄爾

出版者

Japan Oil Chemists' Society

雑誌

油化学 (ISSN:18842003)

巻号頁・発行日

vol.44, no.10, pp.751-766, 1995-10-20 (Released:2009-10-16)

参考文献数

28

被引用文献数

1 2

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Lipids forming lamella are located in the intercellular spaces between stratum corneum of the skin and serve as barrier and water reservior for protecting the skin from foreign hazards and water loss. The lipids consist mainly of ceramides including acylceramides with linoleic acid in the ester linkage. Ceramides are an essential component for supporting lipid lamella where non-freezible, unbound water is compartmentalized, offering water-holding properties to the stratum corneum. This function was confirmed by recovery experiments on lipid-depleted stratum corneum combined with differential scanning calorimetry analysis. On the other hand, the acylceramides with linoleic acid play an crucial role in the barrier function by stabilizing the lamella as rivet. This role was demonstrated by recovery experiments in which only the linoleic acid bearing acylceramides had a potential of repairing barrier disrupture as seen in essential fatty acid deficiency rat skin and UV irradiated skin. Skin disease which suffers from a marked deficiency in both barrier and water-holding function is atopic dermatitis. Consistently, there is a marked decrease in the level of ceramides including acylceramides in the stratum corneum of patients with atopic dermatitis which can also be improved by the application of the these ceramide derivatives.

著者

相磯 和嘉

出版者

Japan Oil Chemists' Society

雑誌

油化学 (ISSN:18842003)

巻号頁・発行日

vol.11, no.7, pp.327-334, 1962-07-20 (Released:2009-09-16)

参考文献数

30

著者

飯森 正秀

出版者

Japan Oil Chemists' Society

雑誌

油化学 (ISSN:18842003)

巻号頁・発行日

vol.20, no.2, pp.91-94, 1971-02-20 (Released:2009-11-10)

参考文献数

2

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Studies of the adsorption of detergents (LAS and ABS) on skin, nail and hide powder in various pH, and the dermatological effect of LAS on human skin by immersion and patch-test were carried out.Higher detergent adsorption onto human skin was observed when treated in acidic detergent solution, which indicated there might exist some correlation between detergent adsorption and pH of the solution. Clinical test showed no dermatological side-effect on human skin due to detergent adsorption.

出版者

公益社団法人 日本油化学会

雑誌

油化学 (ISSN:18842003)

巻号頁・発行日

vol.17, no.4, pp.262-266, 1968-04-20 (Released:2009-10-20)

参考文献数

19

著者

木村 午朗

出版者

Japan Oil Chemists' Society

雑誌

油化学 (ISSN:18842003)

巻号頁・発行日

vol.9, no.3, pp.154-160, 1960-03-20 (Released:2009-10-09)

参考文献数

29

被引用文献数

1

著者

位田 好美

出版者

Japan Oil Chemists' Society

雑誌

油化学 (ISSN:18842003)

巻号頁・発行日

vol.41, no.9, pp.924-928, 1992-09-20 (Released:2009-10-16)

参考文献数

8

著者

林 壮一

出版者

Japan Oil Chemists' Society

雑誌

油化学 (ISSN:18842003)

巻号頁・発行日

vol.16, no.10, pp.554-559, 1967-10-20 (Released:2009-10-20)

参考文献数

11

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On studying phenomena relating to emulsification, it becomes necessary to study on intermolecular forces between emulsifier and oil or water.On this view point, it was found that there exists, at a given oil/water system, required HLB value for interfacial viscosity as well the required HLB value for emulsification, and also there exists linear correlation between required HLB value for interfacial viscosity and solubility parameter of oil.The empirical equations to determine required HLB value for interfacial viscosity at a given oil/water interface were deduced experimentally as follows;Y=6.146δ0-46.0or Y=127.3logδ0-112.2where Y=required HLB value for interfacial viscosity, and δ0=solubility parameter of oil.Above empirical equations are both applicable in the range of Y=515 (corresponding to δ0=8.310.0) independent of the kind of emulsifiers (at least, in the case of nonionic emulsifiers).Required HLB value for interfacial viscosity (now this value may be calculated only from δ0 value for a given oil), as well required HLB value for emulsification, may be useful for determination of HLB value of a given surfactant experimentally.In the course of this study, the author found that heat of vaporization (accordingly δ0 value) may be calculated by the following empirical relation;ΔHv (T') =ΔHv (T0) √T0/T'where T', T0 are absolute temperature and ΔHv (T') , ΔHv (T0) are heat of vaporization at T' and T0 respectively.

著者

佃 豊之

出版者

Japan Oil Chemists' Society

雑誌

油化学 (ISSN:18842003)

巻号頁・発行日

vol.7, no.1, pp.2-7, 1958-01-20 (Released:2009-10-09)

参考文献数

26

著者

松井 宣也

出版者

Japan Oil Chemists' Society

雑誌

油化学 (ISSN:18842003)

巻号頁・発行日

vol.28, no.10, pp.680-688, 1979-10-20 (Released:2010-02-19)

参考文献数

57

被引用文献数

1

著者

大場 健吉 武井 玲子

出版者

Japan Oil Chemists' Society

雑誌

油化学 (ISSN:18842003)

巻号頁・発行日

vol.34, no.3, pp.161-170, 1985-03-20 (Released:2010-02-19)

参考文献数

50

著者

富山 新一

出版者

公益社団法人 日本油化学会

雑誌

油化学 (ISSN:18842003)

巻号頁・発行日

vol.26, no.9, pp.550-557, 1977-08-20 (Released:2009-10-20)

著者

星野 誠

出版者

Japan Oil Chemists' Society

雑誌

油化学 (ISSN:0513398X)

巻号頁・発行日

vol.42, no.10, pp.856-867, 1993-10-20

被引用文献数

3

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Dry chemicals and inert gases are generally used as fire extinguishants to extinguish small-scale flammable fuel fires such as oil spill fires and oil stove fires. But they are not suitable for extinguishing large-scale oil fires, because of the following three reasons ; 1. there is a possibility of reignition after the fire extinction. 2. it costs much when they are applied continuously for a long time. and 3. the largest drawback is that these agents do not prevent the fuel vaporization after the fire extinction.<BR>On the other hand, no fire-fighting foams have such drawbacks. They are sure extinguishants for fires, of chemical plants, large fuel storage tanks and of major oil spills.<BR>Medium and high expansion foams for fire suppression are commercially available as well as convensional low expansion-type foams. Synthetic surfactant, fluorinated surfactant and fluoroprotein foams have been developed one after another, although there are still conventional hydrolized keratin-protein foams available. These newly developed foams have found a way to a practical application in the fire-fighting field.<BR>This paper describes state of the art of fire-fighting foams and explains the details of each foam.

著者

Swisher R.D.

出版者

Japan Oil Chemists' Society

雑誌

油化学 (ISSN:18842003)

巻号頁・発行日

vol.13, no.11, pp.626-629, 1964

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この8月, 東京で第2回国際水質汚濁研究会議が開催されたが, これに出席した米国モンサント会社のスイッシャー博士が, 日本家庭用合成洗剤工業会の依頼により, 去る8月27日標記の演題で講演された。本紹介はその日本訳であり同博士および日本家庭用合成洗剤工業会の厚意ある同意を得たものである。<BR>スイッシャー博士は同社で硫酸化, 染料中間体, 界面活性剤の研究に従事し, 現在SENIOR GROUP LEADERであり洗剤のソフト化問題の権威者である。

著者

江田 研一

出版者

Japan Oil Chemists' Society

雑誌

油化学 (ISSN:18842003)

巻号頁・発行日

vol.18, no.9, pp.582-587, 1969

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銀塩感光材料は, ハロゲン化銀を感光性物質とし, 高分子電解質であるゼラチン中にこれを分散した乳剤を支持体, たとえば, バリタ紙, 三酢酸セルロース, ポリエステルベース, またはガラス板に均一塗布し, 乾燥したもので, 撮影後, 現像液で増幅し黒化銀画とする。未露光銀塩は定着液で除去し, 永久保存しうる画像として, ユーザーに提供するものである。その製造工程は, 第一熟成, 第二熟成, 塗布, 乾燥, 裁断, 包装の各工程である。また, 露光したのち, 現像, 定着, 水洗, 乾燥されるが, 界面活性剤はほとんどすべての工程で使用されているといえる。以下工程を追って, どのように応用されているかについて述べてみたい。