Journal of the Society of Cosmetic Scientists of Korea (대한화장품학회지)

Society of Cosmetic Scientists of Korea (대한화장품학회)
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Liquid Crystalline Technology of Cosmetic Industry and Moisturizing Effect of Skin

화장품 산업의 액정기술과 피부보습효과

  • 김인영 (엔프라니㈜ 피부과학연구소) ;
  • 조춘구 (숭실대학교 환경화학공학과) ;
  • 유희창 (엔프라니㈜ 피부과학연구소)
  • Published : 2004.09.01
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Abstract

This study described about a liquid crystalline technology that is used in cosmetics industry. Various intermediate phases may exist between solid and liquid. At high surfactant concentration, several liquid crystalline phases can be made to have formed. Although molecular arrangement with crystallization is not regular, it is known that more relative regular state is liquid crystalline or meso-phase than liquid phase. Usually, it described in detail about manufacturing method that explained about a kind of liquid crystalline technology in cosmetics, a new liquid crystalline technology, and makes liquid crystalline. Specialty, it introduced about kind of special an emulsifier to form liquid crystalline. There were hydrogenated lecithin, ceramide, dipalmitoylhydroxyproline, DEA-cetyl phosphate, Gemini-surfactant in representative raw material to form liquid crystalline. Liquid crystalline extent that used polarization microscope to observe formation, and appears best from 400times, 600times, 1,000times well appeared. Also, droplet particle size that liquid crystal is made best 1.0-10.0$\mu\textrm{m}$ be. General emulsion more than superior result that measures the skin moisturizing effect to take advantage of liquid crystalline technology of vitamin was seen. As presence at a clinical result, wave and general emulsion more than superior result (more than 20%) that measures skin moisturizing effect about liquid crystalline of vitamin B$\_$5/ were seen (ANOMA t-test, p<0.05)

본 연구는 화장품에서 사용되는 액정기술에 대하여 기술하였다. 액정이란 고체와 액체의 중간 상태에 존재하는 다양한 형태의 구조를 액정이라 한다. 계면활성제의 높은 농도에서 여러 가지 액정 상이 형성된다. 결정과 같이 분자배열이 규칙적이지는 않지만, 액체 상보다는 비교적 규칙적인 상태를 액정 또는 메조페이스(meso-phase)라고도 말한다. 일반적으로 화장품에서의 액정기술의 종류, 새로운 액정기술에 대하여 설명하였으며, 액정을 만드는 방법에 대하여도 자세히 기술하였다. 특히, 액정을 형성하기 위한 특별한 유화제의 종류에 대하여도 소개하였다 액정을 형성하기 위한 대표적인 원료는 수소첨가 레시친, 세라마이드, 디팔미토일하이드록시프롤린, DEA-세틸포스페이트, 제미니형 계면활성제가 있다. 액정의 형성을 관찰하기 위하여 편광 현미경을 사용하였으며, 가장 잘 나타나는 범위는 400배, 600배, 1,000배에서 잘 나타났다. 또한 액정이 가장 잘 만들어지는 droplet 입자크기는 1-10$\mu\textrm{m}$이었다. 임상 결과로서, 비타민 B$_{5}$의 액정에 대하여 피부 보습효과를 측정한 결과 일반 에멀젼보다 우수한 결과(20% 이상)를 보였다(ANOMA t-test, p '||'&'||'lt; 0.05).

Keywords

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