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음이온계 계면활성제 존재하에서 양모직물의 알칼리 처리에 관한 연구
류효선,이정순 한국의류학회 1987 한국의류학회지 Vol.11 No.2
The purpose of this study is to investigate the influence of addition of sodium dodecyl sulfate(SDS) when wool is treated with sodium hydroxide(NaOH). Physical and chemical changes were examined on wool treated with various conc. of NaOH and SDS simultaneously. The result are as follows. 1. The higher the temperature and the longer the time of NaOH treatment are, the more alkali damage wool get: increase in weight loss and decrease in urea-bisalphite solubility and in tensile strength. But the treatment time reacts less effective than the temperature. 2. When wool is treated with NaOH, at NaOH cone. under 10 exp (-3)M., the addition of SDS alleviates the alkali reaction on wool: increase in cystine contents and in urea-bisulpite solubility, and decrease in degree of swelling. On the other hand, at NaOH conc. over 10 exp (-2)M., the addition of SDS promotes the alkali reaction on the wool. 3. When wool is treated with NaOH, the addition of SDS shows no changes on the tensile strength. On the other hand, at NaOH conc. under 10 exp (-2)M., the addition of SDS shows no changes on the softness of wool, but at the 10 exp (-1)M. NaOH conc. addition of SDS increases the softness of wool. The area shrinkage of wool treated with NaOH and SDS shows less changes than with NaOH only.
폴리에스테르직물의 수산화나트륨 처리시 아민과 CTAB 의 첨가효과
柳孝仙,이정순 한국의류학회 1992 한국의류학회지 Vol.16 No.3
The objectives of this study were 1) to investigate the clothing needs of physically handicapped children, 2) to present the basic data to make the slacks patterns which meet the specific needs of physically handicapped children under study. Questionnaires were administered to 38 mothers of handicapped children and the subjects for the wear test were five handicapped children using wheelchair. The fabrics used for slacks wear test were: muslin woven with cotton, stretchable jean woven and double jersey knitted with cotton and polyester fabrics. The results obtained from this study were as follows: 1) The majority of the handicapped children were wearing ready-made-garments and their mothers considered the fabric elasticity first. 2) The slacks wear test indicated that the slacks ease of 8 cm should be added above the natural waist line in the back for the wheelchair bound children. 3) In a sitting posture on the wheelchair, 3-4 cm should be cut below the natural waist line in the front but in a standing posture, 1-2 cm should be cut below the natural waist line in the front. 4) The double jersey (cotton/polyester) slacks was highly estimated of ease and length of slacks in a sitting posture. The stretchable jean (cotton/spandex) slacks was estimated high of appearance but muslin slacks (cotton) was less estimated of ease and appearance of slacks.
폴리에스테르 부분배향사의 용매처리에 따른 내부구조 및 인장성질의 변화
류효선,신혜원 한국의류학회 1993 한국의류학회지 Vol.17 No.1
Partially oriented polyester yarn (PET POY) was treated in the unrestrained state using various solvents at different temperatures. Interactions between PET POY & solvents were estimated by the changes of microstructure, morphology and mechanical properties. The correlation between the changes of microstructure & morphology and the changes of mechanical properties was also studied. TCE. Dioxane, O-DCB, DMF, and BA were found to be active solvents, while Iso-AA and water were found to be weak solvents. PET POY was affected mainly by the solvents when treated with active solvents and affected mainly by heat when treated with weak solvents. Changes by the solvent treatment in microstructure and morphology were : an increase in crystallinity, a change in birefringence, a shrinkage in length, and a change in DSC curve. As for the changes in mechanical properties, findings in the PET POY when treated with solvents were : a decrease in stress-at-break, a change in yield stress, an increase in strain-at-break & yield strain, and a decrease in initial modulus. Changes in microstructure and morphology directly affected the mechanical properties.
LPS로 자극한 대식세포에서 대두배아 추출물의 항염증 효과
류효선,이미자,함주리,최라영,이해인,이현진,손영진,이미경 한국식품영양과학회 2019 한국식품영양과학회지 Vol.48 No.11
본 연구는 SE의 항염증 효과를 구명하기 위해 LPS로 염증반응을 유도한 RAW264.7 대식세포를 이용하여 NO 생성, 전염증성 사이토카인(TNF-α, IL-6) 생성 및 iNOS와 COX- 2 유전자와 단백질 발현을 측정하였다. SE는 RAW264.7 대식세포에서 세포독성이 없는 100, 300, 500 μg/mL 농도에서 실시하였다. SE(300, 500 μg/mL)는 LPS 자극에 의한 NO 생성을 iNOS 유전자와 단백질 발현 억제를 통해 유의적으로 낮추었다. 또한, SE는 COX-2의 유전자 및 단백질 발현도 억제하였으며, 전염증성 사이토카인(TNF-α, IL-6) 생성도 억제하였다. SE의 TNF-α, IL-6 생성 감소는 유전자 발현의 억제를 통해 이루어졌다. 이처럼 SE는 LPS로 자극한 RAW264.7 대식세포에서 항염증 기능성이 확인되었기에 항염증 식품소재로의 가능성을 제시한다. This study investigated the effects of soybean embryo extracts (SE) on the lipopolysaccharide (LPS)- induced inflammatory response in RAW264.7 cells. SE below 500 μg/mL did not affect the viability of RAW264.7 cells. SE at 300 and 500 μg/mL significantly decreased LPS-induced nitric oxide (NO) production. SE treatment also inhibited the release of pro-inflammatory cytokines, such as tumor necrosis factor-α (TNF-α) and interleukin-6 (IL-6), and their mRNA expression. SE inhibited the mRNA and protein expression of inducible nitric oxide synthase and cyclooxygenase-2 induced by LPS. These findings suggest that SE may inhibit LPS-induced inflammation via attenuating the production of NO, TNF-α, and IL-6, indicating that SE could be a candidate as an anti-inflammatory agent.
柳孝仙,池周爰 한국의류학회 1995 한국의류학회지 Vol.19 No.4
This paper described the changes of mechanical KES values after fusing 4 different (in weave & density) wool face fabrics with 3 different (in weave & extensibility) fusible interlinings. The fusing condition was 150℃, 4kg. f/㎠. The results of the study were as follows: (1) After fusing, KES mechanical value of B, 2HB, G, 2HG5, WC increased, where as LT, WT werent't changed so much and EM, RT decreased. It means after fusing extensibilty and recovery property were decreased and volume and stiffness were increased. (2) Within the limits of this investigation, tensile property seemed to be more influenced by the characteristics of face fabrics, and bending property did by the effect of adhesive penetration and shear and compression property did by complex of the characteristics of face fabrics and interlinings and the effect of adhesive penetration.
류효선 ( Hyo Seon Ryu ) 한국의류학회 1982 한국의류학회지 Vol.6 No.1
이 解說文에서는 최근 수년간 개발된 合成纖維에의 Comfort加工 : Polyester섬유의 촉감 改善, 疎水性섬유에 있어서 親水性을 향상시키기 위한 化學的인 처리, 대전방지가공, 오염방지가공, 그리고 柔軟製에 대한 것을 문헌조사를 통해 소개하고 있다.