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손은종,정성훈,Son, Eun-Jong,Jeong, Sung-Hoon The Korean Fiber Society 2017 한국섬유공학회지 Vol.54 No.5
Well-dispersed nanosilver particles were synthesized by a chemical reduction method, where silica was treated with amino groups, mercapto groups, and polyvinylpyrrolidone (PVP) as a dispersant. Transmission electron microscopy (TEM) images showed that both the concentration and the molecular weight of PVP considerably affected the size of the silver nanoparticles. The average size of the silver nanoparticles prepared with amino-treated silica increased with increasing PVP concentration, whereas the size of the silver nanoparticles prepared with mercapto-treated silica was not affected by the PVP concentration. As the molecular weight of PVP increased, the average size of the silver nanoparticles also increased. The number of silver particles formed with mercapto-treated silica was larger, and the size distribution was narrower than those formed from aminotreated silica.
철전극을 이용한 전기화학적 처리에 의한 염색 폐수 탈색화에 관한 연구
손은종,이범수,최은경,김진우 한국섬유공학회 1999 한국섬유공학회지 Vol.36 No.4
Coagulation is one of the most important physiochemical operations used in wastewater treatment and can be achieved by chemical or electrical means. In this study, electrocoagulation using sacrificial iron electrodes which produce Fe(OH)$_2$has been examined with laboratory-formulated dye wastewater containing C.I. Acid Red 106 (azo type) and C.I. Acid Green 25 (anthraquinone type) and it has proven to be very effective in color removal. A series of experiments were conducted to establish the parameters influencing the efficiency in electrochemical color removal. Applied voltage, number and shape of eletrodes, eletrode distance, treatment time as well as the pH of wastewater are estimated to be important system parameters. Color removal increases with plate-shaped electrode rather than circular-shaped one, as the number of electrodes, voltage, and treatment time increase and distance between electrodes decreases. This phenomenon can be explained in terms of the amount of iron generated during the treatment. UV spectra of treated dye solutions indicate that color removal mechanism is likely to be primarily adsorption of dyes on electrochemically generated ferrous hydroxide with a little dye degradation observed only in the last stage of treatment.
손은종,안재상,윤혜준,신희영 한국염색가공학회 2022 韓國染色加工學會誌 Vol.34 No.4
In this study, the flat-section monofilaments of PBT for artificial eyelashes was developed, and the physical properties of the circular cross-section of artificial eyelashes were compared and observed, and the main performance of the artificial eyelash prototype was observed through processing for artificial eyelashes. In addition, a satisfaction survey of the prototype was conducted through a survey of consumers and artificial eyelash operators. It was found that the bending stiffness value of the monofilaments increased significantly as the thickness increased. As a result of measuring the bending properties of the flat-section PBT monofilaments, the bending stiffness was significantly lower than that of the circular-section PBT specimens of the same thickness. The deformed cross-section PBT monofilaments with flat cross sections developed in this study showed a light weight factor of less than 50% compared to the existing circular cross-section PBT ones. The adhesive strength of the developed PBT artificial specimens was greater than that of the existing circular cross-section yarn. It was also observed that the curl stability over time was excellent. As a result of the consumer survey, it was possible to obtain more than 85% of positive answers in the case of consumer subjects, and it was possible to investigate that the satisfaction of the operator subjects was more than 80% compared to the existing round-section eyelashes.
NF 분리막에 의한 머서화폐수에서의 가성소다 회수에 관한 연구
손은종,김진우 한국섬유공학회 1999 한국섬유공학회지 Vol.36 No.3
The recovery of caustic soda from textile mercerization wastewater by means of nanofiltration has been investigated in pilot-scale with SelRO MPT-34 membrane. With a brief summary of previously reported lab-scale results concerning membrane performance as well as the proper pretreatment and cleaning methods, the importance of operating temperature is emphasized in this study because it is found to play a crucial role in governing flux. The productivity of the given membrane system is directly determined by flus. It increases with increase in temperature and decrease in caustic soda concentration of feed solution. It is essential to raise the temperature of feed solution to at least 40℃ to maintain permissible flux. From informations obtained by field visits to Banwol and Bisan textile industrial complexes and Alchemie's successful MF system in India, installation of NF membrane system at an environmental company rather than a textile company is finally suggested as the best method for its industrial application in Korea. Since economic benefit and a payback period are significantly dependent on the NaOH concentration of mercerization wastewater, cooperation of textile companies in collecting the higest caustic soda solution with lower volume is needed.
반응염료에 의한 면의 염색성 향상을 위한 카티온화제의 합성과 그 응용
이용완,정용식,손은종,김진우 한국섬유공학회 1998 한국섬유공학회지 Vol.35 No.9
By the reaction of epichlorohydrin and ethylenediamine in the presence of hydrochloride, a new cationizing agent, N-(3-chloro-2-hydroxypropyl) ethylenediamine hydrochloride was prepared and it was introduced to cellulose fabric to improve its dyeablility. Optimum conditions like time and temperature of cationization of cellulose fiber were investigated. Dyeability and tensile strength of cationized cellulose fabric were assessed. The introduction of aminium group to cellulose by treating with the new cationizing agent improved the adsorption and fixation of reactive dyes. Thus highly reactive dyeing was possible even in the absence of alkali. Tensile strength was not diminished greatly.