Journal of the Korean Applied Science and Technology (한국응용과학기술학회지)

The Korean Society of Applied Science and Technology (한국응용과학기술학회)
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A Study of Waterproofing Evaluation and Effect of UV Protection (UVB/UVA) of Multiple Emulsion Sunblock Cream using Sensory Engeeneering Science

감성공학을 적용한 다중에멀젼 선블록크림의 자외선차단(UVA/B) 효과와 내수성 평가 연구

  • 김인영 ((주)바이오뷰텍 기업부설연구소)
  • Received : 2020.11.18
  • Accepted : 2020.12.17
  • Published : 2020.12.31
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Abstract

This study is about the UV protection effect and water resistance of a multiple emulsion (W/O/W) sunblock cream applied with emotional engineering and reports an actual industrial case. Multiple emulsion system of sunblock cream has the characteristics of changing to a W/O type that is soft and moist when applied, and has excellent water resistance after absorption. Multiple emulsion cream is a highly functional sunblock cream that has both moisture and water resistance. It is a stable milky white cream with a viscosity of 36,000 cps. The organic sunscreen used for the sunscreen was ethylhexylmethoxycinnamate and bisethylhexyloxyphenolmethoxyphenyltriazine. Hexagonal zinc oxide and titanium dioxide that block both UVB and UVA were used. As a result of measuring the UV protection effect by the in-vitro method, the UV protection effect (SPF) is 78.9 for multiple emulsion cream, 76.7 for W/O cream, and 71.3 for O/W cream. It was found that the blocking effect was different. This obtained the highest effect value in the multiple emulsion. As a clinical (in-vivo) result of the UV protection effect, the SPF value representing the UV protection effect of the sunblock cream developed with a multiple emulsion system was 85.7, and the PA-value that blocks the UVA area was 26.5, and ++++. It was found that it has a corresponding high blocking effect. As a result of the water resistance test, the W/O/W formulation had a high waterproofing resistance of 93.8% even after 4 hours, W/O had 75.4%, and O/W had a low water resistance of 25.3%. In the results of the HUT test, it was found in the order of multiple emulsion sun block cream > hydrophilic cream > lipophilic cream. Based on the research results of this multiple emulsion, it is expected to be highly active as a sunblock cream dedicated to outdoor activities by improving the feeling of use, UV protection index, and water resistance. Therefore, in this study, a multiple emulsion system of sunblock cream is developed and has a characteristic that changes to a W/O type that has a soft and moist feeling when applied, and has excellent water resistance after absorption.

이 연구는 감성공학을 적용한 다중에멀젼(W/O/W) 선블록크림의 자외선차단효과와 내수성에 관한 것으로 실제 공업화된 사례를 보고한다. 다중에멀젼 시스템의 선블록크림을 개발하여 바를 때는 부드럽고 촉촉한 사용감을 가지면서, 흡수 후에는 내수성이 우수한 W/O 타입으로 변화하는 특징이 있다. 다중에멀젼 크림은 촉촉함과 내수성을 동시에 가진 고기능성 선블록크림으로 안정한 유백색의 크림, 점도는 36,000cps이었다. 자외선차단크림에 사용된 유기계 선스크린은 에칠헥실메톡시신나메이트, 비스에칠헥실옥시페놀메톡시페닐트리아진이다. UVB와 UVA를 모두 차단하는 헥사고날 징크옥사이드와 티타늄다이옥사이드의 무기계 선스크린으로 처방하였다. In-vitro법으로 자외선차단효과를 측정한 결과 자외선차단효과(SPF)는 다중에멀젼 크림은 78.9, W/O크림은 76.7, O/W크림은 71.3으로 동일종류와 함량을 포함해도 제형에 따라 자외선 차단효과는 다르게 나오는 것을 알 수 있었다. 이는 다중에멀젼에서 가장 높은 효과의 수치를 얻었다. 자외선차단효과의 임상 (in-vivo)결과로써 다중에멀젼 시스템으로 개발한 선블록크림의 자외선차단효과를 나타내는 SPF 값은 85.7이었으며, UVA영역을 차단해 주는 PA값은 26.5로, ++++에 해당하는 높은 차단효과를 가지고 있음을 알 수 있었다. 내수성시험결과로써, W/O/W 제형은 4시간경과 후에도 93.8%의 높은 내수성을 가지고 있었고, W/O는 75.4%, O/W는 25.3%의 낮은 내수성을 가지고 있었다. 사용감 HUT테스트 결과에서도 다중에멀젼 선블록크림>친수성크림>친유성 크림 순으로 나타났다. 이 다중에멀젼의 연구결과를 바탕으로 사용감, 자외선 차단지수, 내수성을 모두 높여 레포츠야외활동 전용의 선블록 크림으로 활동도가 높을 것으로 기대된다.

Keywords

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