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김옥수,장정대,Kim, Ok soo,Jang, Jeong dae 한국의류산업학회 2017 한국의류산업학회지 Vol.19 No.5
In order to clarify an availability of water treatment for persimmon extract dyeing, effect of color developing by water treatment process on cotton fabrics dyed with persimmon extract was investigated. Dyed fabrics were dipped still water and circulation water in various temperature. Concerning water color developing, still water color developing and circulation water color developing have been examined, and the temperature of water has been apprehended to prepare an effective basis of water color development. The surface color based on circulation water color development displays low values of $a^{\ast}$ and $b^{\ast}$, and the range of the c value(Munsell chroma) is narrow and has the value of 2 to 3, thus displays the coloration of a dark tone. The effect of temperature in water color development was insignificant, due to the small difference in temperature from $20^{\circ}C$ to $40^{\circ}C$. At $80^{\circ}C$, remarkable color development manifested, which is evidence of the high influence of temperature. The effects of circulation were clear at low temperatures, and the effects of temperature highly manifested at high temperatures. Circulation water color development display great color development at all temperatures to allow industrial color development with the absence of sunlight, thereby having an effect of energy reduction and developing color in dark tones, however this also is a strength of persimmon extract concerning color diversification, and is judged to have great value of industrial and practical application.
연구논문 : 감초로 부터 글리시리진의 추출 및 직물의 항균성
이영숙 ( Young Sook Lee ),장정대 ( Jeong Dae Jang ) 한국의류산업학회 2013 한국의류산업학회지 Vol.15 No.2
This study investigates the attachment of glycyrrhizin to fabric using an X-ray photoelectron spectrophotometer (XPS). XPS spectra analysis showed that carbon content on treated fabrics with 0.2% glycyrrhizin increased to 2.699% for silk, 2.829% for nylon, 1.505% for cotton, respectively. The results show that glycyrrhizin is absorbed on treated fabrics. The glycyrrhizin extraction method makes radix glycyrrhizae powder 10g treat the first and the second treatment with ethanol, remove impurities on 75oC; subsequently, it is treated for 10 hours with ethanol 75% on 85oC and lyophilizated. As the result, glycyrrhizin is extracted 1.7g in GL-I, 1.1 g in GL-II. As the result of abstracting glycyrrhizin with two methods, pure glycyrrhizin was abstracted 45.9% in GL-I, 74.9% in GL-II. GL-I, GL-II; in addition, glycyrrhizin (Japan) on TLC plate was separated in Rf 0.6. By GL-II extract method, this experiment obtained glycyrrhizin 15 g treated in a bath ratio set to 1: 100. Silk fabric was treated at 80oC, 60 min. in, nylon fabric 10oC, 70 min., and cotton fabric 30oC, 80 min.; subsequently, silk, nylon, cotton fabrics showed a 99.9% antibacterial activity for Staphylococcus aureus and Klebsiella pneumoniae.
연구논문 : Lotus seedpods의 색소 특성과 견뢰도 분석
임지영 ( Jee Young Lim ),장정대 ( Jeong Dae Jang ) 한국의류산업학회 2014 한국의류산업학회지 Vol.16 No.3
Lotus(Nelumbo nucifera gaertn) is intimate plant to many people that it has clean and noble characteristics despite growth in the mud. Especially Lotus seedpods, byproduct of lotus, are rich in oligometric procyanidins and could be a new source of procyanidins. Procyanidins, also known as condensed tannins, are a class of polyphenols. In other words lotus seedpod contains plenty of tannins. Commonly tannins colorants could increase adsorption and fastness properties in fabric dyeing. This study was made to investigate colorants characteristics of lotus seedpod and various colorfastness properties of dyed silk fabrics. The wavelength of maximum absorption of lotus seedpod solution appeared at 273.5 nm from UV-vis spectrophotometer. From the results of FT-IR spectra measurements, IR absorption band of lotus seedpod colorants appeared at 3415 cm-1, 2900 cm-1 and 1620 cm-1 by tannin structure. And tannin ingredient contents was the highest at pH 9 and flavonoid at pH 11. Lotus seedpod colorants showed relatively good affinity at pH 3 on silk fabrics and optimum dyeing temperature and time for silk was for 50 min, at 80oC. K/s of Light fastness according to different washing method was the highest at process including ironing and ΔE was the lowest. All of fastness(Light·rubbing·laundering ·perspiration·dry cleaning) showed excellent results over 4 or 4-5 grades.
연구논문 : 공간에너지 적용 속옷이 생리통 완화에 미치는 영향
이성옥 ( Sung Ok Lee ),장정대 ( Jeong Dae Jang ) 한국의류산업학회 2011 한국의류산업학회지 Vol.13 No.5
For the reduction of menstrual pain, treatment and taking medicine will be able to reduce the temporary ache but the grievous pain will be able to occur with the side effect in medicine, if menstrual pain without side effect for health of the woman which is comfortable mind is possible, it will be able to minimize. Consequently for this study that wearing the underwear which irradiates a space energy reduce menstrual pain, the fundamental data which relaxes the various complex condition will be able to provide and effectiveness of space energy will be able to reduce menstrual pain. Research result, when the underwear which irradiates a space energy wore, the menstrual pain was decreased, the underwear satisfaction increased.
연구논문 : 알칼리와 열처리에 의한 면직물의 감즙염색 발색효과
김옥수 ( Ok Soo Kim ),장정대 ( Jeong Dae Jang ) 한국의류산업학회 2011 한국의류산업학회지 Vol.13 No.6
The purpose of this study is to improve the method of color developing with alkali solution as a promotor of color developing for feasible use. Cotton fabric was dyed with persimmon extract ranged with 0~3% alkali component with 5 types of strong to mild alkali solution. Heat treatment for color developing was applied to fabric dyed with persimmon extract and alkali mixing solution. Tests were carried out to analyze the change of surface color, △,Ea*b*, and water repellent of the dyed cotton fabric. The alkali mixing sample showed higher △,Ea*b* value than control one without alkali mixing on the base of dyed fabric due to high color developing by alkali in the initial step of dyeing process. As alkali concentration increased, deeper dark color appeared on the fabric. The fabric color was changed to more dark in the application of sodium hydroxide, sodium carbonate, potassium carbonate in the intial step of dyeing process but color was not changed by increased beating time. However, the fabric showed a slight dark color with sodium acetate and more color change than that of the fabric dyed with persimmon extract without alkali. Therefore, sodium acetate seemed to a suitable promotor for color developing in persimmon extract dyeing. Property of water repellent was showed after color developing by heating with low concentration of alkali treatment.