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박후나,차옥선 漢陽大學校 韓國生活科學硏究所 1994 韓國 生活 科學 硏究 Vol.- No.12
The Purpose of this study is to investigate the vegetable yellow dyes with gardenia and curcuma. After extraction of dyes from gardenia and curcuma, the concentrations of two dyes were compared through light absorbancy comparision. Dyeing effect(△K /S), color, wash fastness, light fastness, drycleaning records were also compared by observations according to the different variations of dyeing temperatures(30℃, 50℃, 80℃) and mordanting agents(Aluminium Potassium, Potassium Chromate) The result of this study are summarized as follows : 1.Gardenia dyes have higher yellow color concentration than curcuma dyes. 2.Dyeing effect Effect of dyeing temperature △K /S value is the highest at 50℃ Effect on materials : △K/S value is higher on silk than on cotton Gardenia dyes have higher △K /S value on silk, while curcuma dyes have higher value on cotton. 3.In Munsell system, the hue of gardenia dyes is 10YR and that of curcuma dyes is 5Y. Curcuma dyes have relatively higher value than gardenia dyes have. Compared with cotton, silk has higher chroma but lower value. At higher dyeing temperature gardenia dyes have lower chroma, while curcuma dyes have higher chroma with lower value 4.Color fastness test : 1) Wash fastness Gardenia dyes mark best fastness at dyeing temperature 80℃. With gardenia dyes, Cr mordanting agent marks better fastness than Al mordanting. On materials cotton has better than silk. Curcuma dyes mark best fastness at dyeing temperture 30℃. With curcuma dyes, Cr mordanting marks better fastness than Al mordanting. Curcuma dyes have, compared with gardenia dyes, better wash fastness on silk, while gardenia dyes have better fastness on cotton. 2) Light fastness Both dyes, gardenia and curcuma mark the grade I. 3) Drycleaning Gardenia dyes mark best fastness at dyeing temperature 80℃. Gardenia dyes make better fastness on cotton with Al mordanting. But on silk, non-mordanting treated materials make relatively better effect. Curcuma dyes mark best fastness at dyeing temperature 30℃. Curcuma dyes mark better fastness on cotton with Al mordanting. But on silk, non-mordanting treatment method makes relatively better fastness effect.
제7차 초등교육과정에서 지속가능한 발전을 위한 환경교육 실태 연구
박후서,이규섭,박정희,최석진,안종운 한국환경교육학회 2007 環境 敎育 Vol.20 No.1
Current environmental education at elementary school is demanded to be changed into 'Sustainable Development'. Therefore, we should find a new program to reflect appropriateness and diversity of environmental education at elementary school for 'Sustainable Development'. The result of analysing textbooks and the realities in environmental education at elementary school is as follows.First, when we analysed the contents of the textbook in environmental education, the reflecting rate was high in 'natural environment' and 'sound consumption', compared with in 'artificial environment', 'resource and energy' and 'health and environment'.Second, we realized the necessity for 'environmental education' complementary to 'Sustainable Development'. That is because the analysis showed the lack for the activity for approaching and solving environmental problems with 'artificial environment', 'resource and energy' and 'health and environment'.Third, the analysis also showed the deficiency in the reflection of 'environmental education' contents for maintaining healthful environment through improving the quality of life.