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趙顯或 慶北工業專門大學 1978 論文集 Vol.15 No.-
The flexural rigidities of the many kinds of fabrics are measured by heart loop method, clark's method, and slide method. Also bending properties were measured with the KES-F2 tester. The bending mechanism of fabrics could be explained as the bending rigidity, bending recovery, residual moment, and work recovery. In this paper, by analyzing the experimental results of each flexural rigidity test and bending test of 14 polyester textured fabrics, it can be concluded as follow: 1. The bending rigidity of a fabric increases both with thickness and fabric weight. 2. The stiffness of textile fabrics depend upon its bending characteristics, and in general the stiffness in direction is anisotropy. 3. The flexural rigidities of fabrics by clark method and slide method increase with the bending rigidity of fabrics, but by heat loop method is vice versa. 4. Cover factor and bending rigidity show plus correlation between fabric bending characteristics.
趙顯或 慶北工業專門大學 1977 論文集 Vol.14 No.-
Cloth thickness measurements are involved directly in a whole range of technological investigations: in any problem involving milling or raising; heat transmission and insulation; tactile judgement; in designing fabrics to meet specific requirements; or in studies of cloth geometry. If the principle interest is in softness of handle, then the information required is the entire relation between pressure and thickness-the compressibility of the fabric. It is supposed that there is a close relation between the compressional characteristics of fabrics and sensory characteristics which can be detected by hand metric method. These relations were examined by means of correlation matrix. The results obtained are as follows: 1. Compressional hardness and sturdiness show plus correlation, compressibility and compressional hardness show minus correlation in compressional characteristics. 2. Smoothness and hardness show plus correlation between sensory characteristics between compressional characteristics. 3. Fullness and cover factor show plus correlation between sensory characteristics and covering of cloth geometry.
복합섬유의 고속방사에 있어서 섬유구조형성(Ⅱ) : LLDPE/PET 복합의 효과 Effects of LLDPE/PET Bicomponent System
김경효,조현혹,장정대 釜山大學校生産技術硏究所 1997 生産技術硏究所論文集 Vol.53 No.-
sheath-core형 복합섬유를 고속용융방사하여 방사속도에 따른 섬유구조의 변화를 검토하였다. 복합섬유는 폴리에틸렌테레프탈레이트(PET) 및 2종류의 선상 저밀도폴리에틸렌(LLDPE), 즉 융체유동속도(MFR)가 45, 50인 것을 사용하여 LLDPE를 sheath에 PET를 core에 배치하였다 고속방사된 복합섬유중의 각 성분의 구조형성을 복굴절, 광각X선회절 및 열분석 등으로 검토한 결과, PET성분을 단독으로 고속방사한 경우에 비해 LLDPE의 MFR에 상관없이 LLDPE/PET 복합섬유중의 PET성분은 약 1km/min 낮은 방사속도에서 배향결정화가 일어나 PET성분의 섬유구조형성은 촉진되었으며, LLDPE성분의 섬유구조형성은 LLDPE 단독으로 방사한 경우에 비해 억제됨을 확인하였다. High-speed melt spinning of sheath-core type bicomponent fibers was performed and the change of fiber structure with increasing take-up velocity was investigated. Three kinds of polymers, poly(ethylene terephthalate) (PET), linear low-density polyethylene(MFR=45) (LLDPE(45)) and linear low-density polyethylene(MFR=50) (LLDPE(50)), were selected and two sets sheath/core combinations, LLDPE(45)/PET and LLDPE(50)/PET(i.e. sheath/core), were studied. The structure of each component in high-speed spun bicomponent fibers was analyzed through the birefringence, wide-angle X-ray diffraction measurements and DSC thermogram measurements. The development of molecular orientation and the initiating of the orientation-induced crystallization of PET in LLDPE/PET bicomponent fibers occurred at lower take-up velocities regardless of the type of LLDPE as compared to those in the single component spinning. The fiber structure formation of LLDPE component in LLDPE/PET bicomponent fibers was suppressed as compared to that in the single component spinning.
김성신,조현혹,장정대 부산대학교 생산기술연구소 2001 生産技術硏究所論文集 Vol.60 No.-
황토염색직물이 황토의 기능성을 발휘하려면 황토가 직물에 고르게 많이 부착되어야 하고, 염색된 직물의 세탁견뢰도가 요구된다. 본 연구에서는 황토염색 향상을 목적으로 카티온성 고착제를 사용하고 세탁견뢰도 향상의 목적으로 아교, 콩즙을 후처리하여 그 효과를 검토하고 염색직물의 역학 및 물성변화를 조사하였다. 황토흡착은 카티온 전처리를 한 경우가 증가하였으며, 표면관찰결과에서도 고르게 흡착되었다. 점착제의 후처리에 의해서 세탁견뢰도의 향상이 있었으며 흡수성, 접촉냉감이 증가하고 굽힘, 전단강성 및 표면마찰계수가 증가됨을 확인하였다. This study investigates the mechanical and physical properties of cotton treated with loess. There has been a few of investigations about the washing fastness of the fabrics that were treated with loess. Therefore, we investigated variety ways of improving the washing fastness on cotton fabrics dyed with loess. We obtained the following results : The duration of loess treatment directly correlates the K/S value. The cationic agent treated fabrics had higher K/S value than the untreated fabrics. The SEM findings show the even distribution of loess in the fabrics. The loess treated fabrics had higher water absorption than control fabrics. Higher water absorption were also seen in fabrics that were treated with cationic agent or glue. However, lower water absorption was seen in soybean treated fabrics. Thermal rate and heat conduction rate were increased by loess treatment. Qmax was increased in loess treated fabrics which shows the cool feeling. The cationic, soybean and glue treatments all improved the fastness of loess in the fabrics, improving better washing fastness. Bending regidity(B), bending histeresis (2HB), shear regidity(G), shear histeresis(2HGS) and coefficient of friction(MIU) of loess treated fabrics were increased indicating that the fabrics dyed with loess can be a good material for men's summer suits.
대전 대덕구 출토 복식 유물에 부착된 세균의 종류 및 섬유소분해효소 활성
이상준,차미선,조현혹,백영미,권영숙 한국의류산업학회 2005 한국의류산업학회지 Vol.7 No.1
This study was aimed to isolation and identification of attached bacteria on the clothes excavated from Deajeon area dating on the 16th century. From the observation with colony shape, 17 bacterial strains were isolated, and then 7 bacterial strains were identified with morphological and biochemical characteristics. Streptococcus sp., Alcah eves faecalis, Gemella sp., Acinetobacter sp., Pseudomones vesicularis, Aeromonas sails. salmonicida, Moraxella spp. In observation of the bacterial strains by the sort of textile, more bacterial strains were found in silk, cotton, and cotton bats than in ramie and hemp. It is suggest that hemp has antibacterial characteristics due to the presence of lignin. In the comparison washed samples with unwashed ones, there were more kinds of bacterial strains in washed samples. In the cellulase activity tests, all isolated bacteria had low level cellulase activity.