• The Journal of Pediatrics of Korean Medicine
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• v.17 no.1
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• pp.71-86
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• 2003

Objectives : The aim of this study was to investigate the classification methods of the external treatments of atopic dermatitis for Children. Methods: We surveyed the oriental medical book concerning the atopic dermatitis for Children. Results : 1. The oriental herbal medications for the atopic dermatitis used with Ryuhwang(硫?), WoongHwang(雄黃), KyoungBun(輕粉), WhangBaek(黃栢), SeokGo(石膏) and so on. 2. The frequently used type of external prescription is solid or liquid. 3. The external preparations were frequently painted or washing with to the lesion of dermatitis. For the wet type of atopic dermatitis, the solid prescription were sprinkled on the lesion or irrigated with the liquid. For the dry type, the mixed prescription of the solid and liquid were painted on the lesion.

• Journal of Environmental Health Sciences
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• v.20 no.4
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• pp.10-16
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• 1994

A Study was performed in order to measure mixed organic solvent concentrations in air of painting operations during January 5-28, 1991. The mixed organic solvent concentrations were analyzed by the gas chromatography. The results were as follows: 1. The detection of organic solvent was highest in aromatic hydrocarbon(68%), and followed by aliphatic hydrocarbon (18%), and ketone (14%). 2. The detection of organic solvent by component category was highest in the grid class solvent (79.4%), and followed by the 3rd class solvent (20.6%). 3. Number of cases exceeding TLVS of mixed solvent level in air was highest on dipping operation (44%), and followed by spray operation (40%), dry and washing operation (33%), and adhensive operation (12%).

• Journal of the Korean Home Economics Association
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• v.42 no.7
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• pp.55-61
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• 2004

The Purpose or this study was to determine the optimal dyeing condition or Chelidonium majus extracts onto silk fabrics. Among the various dyeing properties, the colorfastness of fabrics dyed with Chelidonium majus extracts was investigated in different conditions such as dyeing temperature, dyeing time, dyeing pH etc. We also tried to dye fabrics using the Chelidonium majus extracts which were lyophilized. Although mordant was not used, dyed fabrics showed relatively good dyeability and the main pigment of Chelidonium majus showed yellow vividly in the appropriate dyeing conditions. At a dyeing temperature above 40$^{\circ}C$, the $\Delta$E value increased but the yellowish tint decreased. The pH value of unadjusted Chelidonium majus extracts was 6.4, at which a deep yellow was obtained. The dye equilibrium was reached 40 minutes after dyeing. The colorfastness to washing and light was poor at 1-2 and 2-3, respectively, but the dry-cleaning fastness was good at 4-5.

• The Korean Journal of Community Living Science
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• v.15 no.1
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• pp.27-33
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• 2004

Natural dyeing means coloring with dyes extracted from plants, minerals or animals found in nature. Natural dyeing provides calm and natural colors; it has antibacterial and deodorizing qualities; and the dyeing process is environmentally friendly. This study extracted natural dyes from young fruit by thinning out the superfluous fruits of Naju pear trees, and then examined its dyeing properties, the optimal dyeing conditions, and its color fastness for practical use. The results indicated that dyeing is ideal when it had Cu mordant treatment (5% concentration at 9$0^{\circ}C$, pH 4) for 50 min. The color fastness of natural dyes with Cu mordant treatment was very excellent after rubbing and dry cleaning, and also good after exposure to perspiration, light and washing.

• Transactions of the Korean Society of Machine Tool Engineers
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• v.15 no.2
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• pp.59-65
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• 2006

The purposes of using cutting fluid during cutting have been cooling, lubricating, chip washing and anti-corroding. However, the present manufacturing industry restricts the use of cutting fluid because cutting fluid contains poisonous substances which are harmful to the human body. Therefore environmentally conscious machining and technology have more important position in machining process because cutting fluids have significant influence on the environment in milling process. In this study, environmentally conscious machining can be obtained by the way of selecting the optimum machinig conditon using the design of experiment. Cutting using oil-mist showed better cutting characteristics than dry, air and fluid cutting with respect to by cutting force, tool wear and surface roughness. Also, the optimum machining condition for cutting using oil-mist could be selected through Taguchi method.

• Journal of the Korean institute of surface engineering
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• v.24 no.1
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• pp.1.2-1.2
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• 1991

The formation of managanese ferrite has been performed to investigate some properties according to the variation of compositions, pH, current density by electrolysis. It has been found that the amount of oxidized weight of anode were increased with increasing current density. The amount of oxidized weight of anode were most in pH10. As the result of X-ray diffraction Mn Fe2O4 crystal composition in pH13. When the particles of Mnx Fe3-x O4 were heated at 30$0^{\circ}C$, it has been shown typical MnFe2O4(JCPDS Card No. 10-319) in X-1 composition. As the result of SEM observation, the size of MnFe2O4 particles were about 0.1$\mu\textrm{m}$, the shape of particles were spherical type. According to the above mentioned experimental condition, 0.1-0.5$\mu\textrm{m}$ sub-micron particles of manganese ferrite were formed from the wasted manganese dry cell, through washing longrightarrow reduction longrightarrow electrloysis.

• Textile Coloration and Finishing
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• v.9 no.4
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• pp.1-6
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• 1997

Water repellent finish was carried out using water repellent agent(AG-480), melamine resin(Sumitex Resin MK), and catalyst(Sumitex Accelerator ACX). PET/nylon fabrics were treated with melamine resin by pad-dry-cure method and subsequently washed and dried. Durable water repellency was controlled by the melamine resin and catalyst. Water repellency was tested by spray rating method and durability of water repellency were measured by launder-O-meter and pilling tester. The optimum conditions of durable water repellent finish for new synthetic fabric were as follows; concentration of water repellent finishing agent 20g/l; concentration of melamine & catalyst 0.5g/l; curing condition $160^{\circ}$ ${\times}$ 30sec. Water repellency after washing and rubbing is improved by melamine resin and catalyst.

• Fashion & Textile Research Journal
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• v.6 no.6
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• pp.778-784
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• 2004

The natural dyeing of silk fabric with natural gardenia blue powder was investigated. The sum of K/S values was increased with increasing the amount of gardenia powder up to 20%,(o.w.b.). The proper time, temperature and pH for the dyeing of silk fabric with gardenia blue powder were 60~80 minutes, $80^{\circ}C$ and pH 4, respectively. The B and BG colors were obtained according to various mordanting methods, mordants and mordant concentrations. The various colorfastness were not improved by mordanting. The colorfastness to light was poor, but the colorfastness to dry cleaning and washing were good.

• Journal of the Korean institute of surface engineering
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• v.25 no.1
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• pp.1-7
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• 1992

The formation of manganese ferrite has been performed to investigate some properties according to the variation of compositions, pH, current density by electrolysis. It has been found that the amount of oxidized weight of anode were increased with increasing current density. The amount of oxidized weight of anode were most in pH 10. As the result of X-ray diffraction Mn Fe₂O₄ crystal composition in pH13. When the particles of Mn/sub x/ Fe/sub 3-x/O₄ were heated at 300℃, it has been shown typical Mn Fe₂O₄(JCPDS Card No. 10-319) in X=1 composition. As the result of SEM observation, the size of MnFe₂O₄ particles were about 0.1㎛, the shape of particles were spherical type. According to the above mentioned experimental condition, 0.1-0.5㎛ sub-micron particles of manganese ferrite were formed from the wasted manganese dry cell, through washing → reduction → electrloysis.

• Journal of the Korean Home Economics Association
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• v.40 no.12
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• pp.109-118
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• 2002

The Purpose of this study was to investigate dyeing properties and color fastness of Ainus firma sieb. et Zucc. Fruit, according to dyeing temperature, dyeing time, dyeing concentrations and various mordants. The results were as follows ; 1. The dyeabilities of the natural colorants extracted from Alnus firma fruit were investigated under various dyeing temperature, dyeing time and dyeing concentration. As a result, the optimum dyeing temperature, time and concentration of silk fabric with Alnus firma fruit were $60^{\circ}C$, 60min and 100％(o.w.f.) respectively. 2. Alnus firma fruit extract dyed reddish purple (RP hue) on the Fe-mordanted silk fabric. In the case of other mordants, silk fabrics dyed yellow (Y hue). 3. Generally, the light color fastness was relatively fair in the silk fabric dyed with the Alnus firma fruit and Fe mordant. The washing color fastness of color change of silk dyeings mordanted with Al, Sn showed 4 grade. However, the dry cleaning color fastness of the silk fabric was fastness was excellent. The rubbing color fastness showed 4 grade at the most of mordants except Cu.