• Journal of the Korean Applied Science and Technology
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• v.35 no.4
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• pp.1038-1047
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• 2018

This study confirmed possibility of cosmetic material for Espresso coffee grounds extracted at high temperature, high pressure, short time and Dutch coffee grounds extracted at low temperature, atmospheric pressure, long time. For this purpose, we evaluated the biological activities of antioxidant, anti-wrinkles and antimicrobial effects using ethanol extracts of Esproso and Dutch coffee grounds. The results of total polyphenolic compound contents was $90.39{\pm}0.04mg/g$ for Dutch coffee grounds extract, which was higher than $64.96{\pm}0.38mg/g$ for Espresso coffee grounds extract, based on $113.63{\pm}0.22mg/g$ for coffee beans extract as the reference one. DPPH radical scavenging activity and SOD-like activity of Dutch coffee grounds extract were found to be better than those of Espresso coffee grounds extracts, referenced on coffee bean extract. As a result of inhibition effect of Elastase activity, Dutch coffee grounds extract showed higher inhibition effect than Espresso coffee grounds extract, based on coffee bean extract. In addition, Dutch coffee grounds extract showed good anti-microbial effects at Escherichia coli, Bacillus, Propionibacterium acnes and there was little difference in the clear zone size between Dutch coffee grounds extract and coffee bean extract as a reference one. From the results of the experiments, it was confirmed that Dutch coffee grounds extract had excellent antioxidant, anti-wrinkle and antimicrobial effects and could be used as safe natural cosmetic material in the future.

• 월간 기계설비
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• s.226
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• pp.53-57
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• 2009

그동안 많은 논란이 있었던 석면문제가 또다시 도마 위에 올랐다. 최근 아기에게 바르는 파우더를 비롯하여 화장품 등에까지 석면공포가 확산됨에 따라 환경부는 석면이 주로 건축자재(80% 이상)에 사용된 만큼 국민건강 보호를 위해 건축물에 사용된 석면의 안전한 관리가 무엇보다 중요하다고 판단, 가이드라인을 제정, 시행에 들어갔다. 가이드라인의 주요 내용은 $\Delta$건축물에 사용된 석면함유 설비 또는 자재를 조사하여 석면지도 작성 및 6개월마다 훼손 여부 평가 관리 $\Delta$석면 해체 제거작업 과정에서 석면이 비산되지 않도록 주변 대기 중 석면농도 0.01개/cc(실내공기질 권고기준) 기준 설정 $\Delta$석면 해체 제거 작업 및 폐석면 처리 시 안전한 석면관리를 위한 준수사항 등이다. 이번 가이드라인은 건축물 사용단계부터 철거 폐기까지 전 생에에 걸친 석면 관리 방법 및 기준 등을 포함하고 있어 건축물 이용자, 철거지역 인근 주민의 석면 노출 차단에 기여할 것으로 기대된다. 환경부는 가이드라인을 자치단체, 다중이용시설 관리자, 건축물 철거업체 등을 통해 널리 알리는 한편, 노동부 등 관계부처와 함께 관련제도 보완 등 건축물 석면관리 개선방안을 오는 6월까지 마련할 계획이다.

• Journal of Conservation Science
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• v.36 no.3
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• pp.187-196
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• 2020

In this study, we tried to reproduce some of the cosmetics from the Joseon period based on the previous analysis of the cosmetics excavated from the tomb of Princess Hwahyup. The two cosmetic powders, the white powder consisting of lead(II) carbonate and talc and the cinnabar-based red powder, were reproduced according to the records from the 6th to the 19th centuries. We also studied the degradation profiles of these reproduced samples by comparison of XRD patterns. Basic lead carbonate of the reproduced white powder turned into lead(II) carbonate, while the reproduced red powder showed different crystalline structure from the excavated cosmetics even after the degradation. Results of the evaluation tests showed that these reproduced cosmetics fell short of the standards set for the modern-day cosmetics, but based on their mixing ratio, the spreadability and oil absorption capacity of some samples of the reproduced white powder were found to be similar to those of the modern cosmetics.

• Journal of the Society of Cosmetic Scientists of Korea
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• v.36 no.4
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• pp.253-258
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• 2010

Until now, evaluating the efficacy of brightening mainly depends on total reflective light measurement. For example, SHV (Saturation, Hue, Value), $L^*$ $a^*$ $b^*$ (CIELAB color space system) color space system was used and lightness and saturation changes were chosen as major parameters for evaluating brightening effect. However, those parameters were calculated from total reflective light on the skin and it is hard to evaluate perceptive efficacy such as luminescence, and glossy. In this research, we applied new method for estimating change of luminescence of skin by using 'Lumiscan' which uses polarized light for detecting surface and inside reflective light independently. We also tested 15 different parameters for finding correlations between luminescence and those parameters. As a results, our 2 different brightening products showed 5 ~ 9 % increase of luminescence at 4 and 8 weeks. And we also found that skin roughness (-28 %), melanin index (-17 %), redness (-7 %), hydration (15 %), and lightness (6 %) were related to luminescence of skin.

• Journal of the Society of Cosmetic Scientists of Korea
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• v.36 no.3
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• pp.193-198
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• 2010

Melanin is synthesized by the melanocytes in basal layer of epidermis and distributed over all the layers of skin including corneocytes in stratum corneum, outermost layer of the epidermis. Melanin of corneocytes was stained using Fontana-Masson method and quantified by image analysis. The correlation between melanin contents and skin color value was estimated in the skin of 71 Korean women. Melanin covering area (MCA) showed good correlation with $L^*$ value and $ITA^{\circ}$ (Individual Typology Angle) (r = 0.6049, 0.6651, respectively). MCA can be used as new parameter for skin color study and has potential application for evaluating the efficacy of the skin whitening cosmetics.

• Journal of the Society of Cosmetic Scientists of Korea
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• v.31 no.4 s.54
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• pp.343-347
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• 2005

As aging occurs, ow skin gets more wrinkles, becomes drier and loses its elasticity. Validating the evaluation of skin elasticity is especially important, because it is not as visible as other signs of aging such as wrinkles. Here, we identified the correlation between age and the Parameters given by Cutometer, and (we present) the parameters of that reflect the decreases in skin elasticity along with ages (Ur/Uf, Ua/Uf, Ur/Ue, Ua, $r=0.687{\sim}0.725$). Also we developed an evaluation method to quantify the difference of skin by viewing or touching. A five-grade standard of Moire topographic photo scale on face was prepared using sensory evaluation of 20 to 61 year - old women. Based on this photo standard, scoring was performed using (a) 5-grade system by three specialists to obtain the consensus score. Significant negative correlations between age and results of Cutometer $(r=-0.687{\sim}-0.725)$, Moire topography scores (r=-938) were found. Finally we have shown the significance of the correlation between the result of Cutometer and the score of Moire topography (r=0.711). Our studies using Moire topography on face have confirmed that instrumental measurements reflect the decrease in shin elasticity, which is perceived visually.

• The Bimonthly Magazine for Agrochemicals and Plant Protection
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• v.12 no.6 s.105
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• pp.31-39
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• 1991

소득의 증가로 생활수준이 향상됨에 따라 건강에 대한 소비자의 관심이 그 어느때 보다 고조되고 있다. 농산물(식품)중에 잔류하는 미량의 농약성분, 특히 발암위해성과 관련이 있는 농약성분의 잔류분에 대한 안전성 평가에 많은 관심이 모아지고 있는 것은 우리나라 뿐만 아니라 전세계적인 추세이다. 특히 미국에서는 관련법규(연방살충$\cdot$살균$\cdot$살서제법과 연방식품$\cdot$의약품$\cdot$화장품법)의 내용과 해석 차이로 US/EPA가 농약의 효율적인 관리를 위한 법률적용에 많은 어려움을 겪고 있으며, 현재도 관련법규나 제도를 계속 보완$\cdot$개정하려는 법안이 국회에 계류되어 심의중에 있다. 여기에 소개하는 내용은 US/EPA가 세계농약공업연맹(GIFAP)에 서신으로 보낸 ''델라네이 역설''(Delaney Paradox addressed by US EPA : GIFAP Bulletin Vol. 15(1). 1989)에 관한 것이다.

• Journal of the Korean Society of Clothing and Textiles
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• v.26 no.11
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• pp.1593-1604
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• 2002

The purpose of the study were to find how the trend had an effect on a buying motivation, a selecting standard, a frequency of use, a purchase place of cosmetics, makeup and the distinctive quality of social strata of regarding a clothing shopping orientation. The subjects of investigation were the women in twenties who live in Seoul and Chonnam province. This study had been done from May to July 2001, and 660 questionnaires were used for analysis. The measuring tools used were the items of matters of preceding studies and developed ones by researchers on which questionnaires were prepared. Factor and cluster analysis and Duncan's multiple range test, ANOVA, x$^2$-test, frequency, and percentage as analysis methods were used through SPSS. The results of the study were as follows. The clothing shopping orientation divided five shopping orientations such as ostentatious style, enjoyable style, economical style, and prudent style, and an attachment style for special brands and shops. On the basis of this result, the groups 20's females were classified into low groups by the cluster analysis; economical shopping group, indifferent shopping group, conspicuous shopping group, and recreational shopping group. In the case of cosmetics purchasing motives, evaluation criteria of cosmetics, stores selection criteria were found according to shopping orientation subdivision, and there was the significant difference between the groups in frequency of use, a purchase place of cosmetics.

• The Korean Journal of Community Living Science
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• v.26 no.1
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• pp.145-154
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• 2015

This study examines the effects of evaluation criteria for natural cosmetics on purchase and word-of-mouth intentions according to the LOHAS class. A survey was conducted from Feb. 2 to 17, 2013 and a total of 410 responses were analyzed using SPSS 18.0. The results of this study are described below. First, evaluation criteria for natural cosmetics had four dimensions - practical, aesthetic, promotional, and social criteria. Second, for the upper LOHAS class, all four dimensions of evaluation criteria for natural cosmetics were important relative to the middle and lower classes. Third, for the upper and middle LOHAS classes, purchase intentions were influenced by practical criteria. However, evaluation criteria had no effect for the lower LOHAS class. Fourth, the upper LOHAS class considered practical criteria, the middle LOHAS class considered practical and social criteria, and the lower LOHAS class considered aesthetic criteria, As a result, word-of-mouth intentions were influenced by evaluation criteria for natural cosmetics.

• Journal of the Korean Institute of Gas
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• v.7 no.4 s.21
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• pp.1-6
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• 2003

Freon gas has been replaced with LPG in the cosmetic industry because of its bad effects on environment. In this paper, skincare product with a cooling effect was developed using LPG as propellant. A cooling effect is obtained by the ice which is formed through spraying. Ice formation is affected by the composition of LPG and most of all, the high content of propane gas in the LPG results in the irregular surface of ice formed because of its high vapor pressure. Also the ratio of LPG to skincare solution affects the formation of ice.