Characterization of Ethyl Cellulose as W/O-Type Emulsifier and Application for Sunscreen.
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- Matsuzaki Fumiaki
- Basic Research Center, Shiseido Co. Ltd.
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- Yoshino Nobuyuki
- Product Development Center, Shiseido Co. Ltd.
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- Yanaki Toshio
- Basic Research Center, Shiseido Co. Ltd.
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- Matsumoto Takashi
- Product Development Center, Shiseido Co. Ltd.
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- Nakajima Hideo
- Basic Research Center, Shiseido Co. Ltd.
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- Nishiyama Shoji
- Product Development Center, Shiseido Co. Ltd.
Bibliographic Information
- Other Title
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- エチルセルロースのW/O型乳化剤としての特性とサンスクリーンへの応用
Description
The characterization of ethyl cellulose (EC) as a W/O-type emulsifier was studied. The results of emulsification with various oils found that EC was able to emulsify polar oils. The mechanism of emulsification was evaluated with the fluorescein labeled EC (FL-EC). As FL-EC exist on the interface of oil and water, and a continuous phase, it was suggested that (1) the stability of the emulsion was depended on the adsorption of EC on the interface and (2) EC can form a stable structure in the continuous phase. As the stability of the emulsion was inferior to that of emulsion using a surfactant, the improvement of the stability was studied. It was found that the stability of the emulsion was able to be improved by the addition of isostearic acid and sodium carboxy methyl cellulose. Since this base could emulsify of polar oils, the base could be useful one for sunscreen formulae. EC emulsified a UV absorbent and gave a high water resistance.
Journal
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- Journal of Society of Cosmetic Chemists of Japan
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Journal of Society of Cosmetic Chemists of Japan 34 (3), 291-298, 2000
The Society of Cosmetic Chemists of Japan
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Keywords
Details 詳細情報について
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- CRID
- 1390282679477784832
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- NII Article ID
- 130004188797
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- ISSN
- 18844146
- 03875253
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- Text Lang
- ja
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- Data Source
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- JaLC
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed