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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
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Textile Science and Engineering
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Journal DOI :
The Korean Fiber Society
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Volume & Issues
Volume 52, Issue 6 - Dec 2015
Volume 52, Issue 5 - Oct 2015
Volume 52, Issue 4 - Aug 2015
Volume 52, Issue 3 - Jun 2015
Volume 52, Issue 2 - Apr 2015
Volume 52, Issue 1 - Feb 2015
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Automatic Detection of Type-I Yarn Package Winding-form Error Using Quadrantal Dissection Image Processing
Sul, In Hwan ;
Textile Science and Engineering, volume 52, issue 2, 2015, Pages 67~72
DOI : 10.12772/TSE.2015.52.067
Information and communication technology (ICT) can enhance the performance of conventional fibers and the textile manufacturing process. In this work, an image-processing technique was adapted for the automatic inspection of the winding form of yarn packages, which is a critical factor for effective and seamless fiber/textile manufacturing. Raw images were dissected to quadrantal formats and then transformed to rectangular shapes for the ease of processing. Two parameters, fiber orientation angle and shape factor of the fiber orienting bounding box were proposed to filter out badly aligned fibers on the package surface. Various sizes and shapes of packages were used for verification of the proposed method.
Enhancement in the Breathability of Biomass-based Polyurethane Non-porous Membrane Films through Hybridizing with Nano-SiO
Kang, Seung-Gu ; Choi, Hyeon-jin ; Kim, Jinmi ; Lee, Seungjae ; Park, Jong Sung ; Kwon, Oh Kyung ; Min, Byung Gil ;
Textile Science and Engineering, volume 52, issue 2, 2015, Pages 73~78
DOI : 10.12772/TSE.2015.52.073
The aim of this work was to enhance water vapor permeability of bio-polyurethane thin films, which is essential in non-microporous-type films for applications in breathable fabrics, by hybridizing with silica particles. As the bio-polyurethane, which was synthesized using biomass-based
1,3-propanediol, did not have enough hydrophilicity for a breathable film, the hybridizing effect of hydrophilic nano- or micro-sized silica (
) on the breathability of bio-polyurethane thin films was investigated by measuring the water contact angle and water vapor permeability of the films. It was found that the permeability of the bio-polyurethane film could be significantly enhanced by hybridizing with
as well as
. It was also observed that the
was more effective than the
in improving permeability. It was found that permeability in bio-polyurethane film could be improved up to more than 100% with
content at 9 wt%.
Characteristics of Twist Structure of a Bundle on Friction Drum
Lim, Jung H. ; Ganbat, T. ; Huh, You ;
Textile Science and Engineering, volume 52, issue 2, 2015, Pages 79~87
DOI : 10.12772/TSE.2015.52.079
Frictional bundling of fibers is accompanied by twists that compel the bundle cohesion force to generate bundle strength. Twists generated by friction occur in two forms; one by fiber arrangement on the bundle layer and the other by torque due to the thickness distribution of the bundle on the friction surface. This study investigates the twists of a friction bundle that occur on the friction surface, and theoretical models of twists are applied to develop total twist and the twist characteristics by simulation. Results showed that the fiber arrangement twists are directionally opposite to the torque twists; fiber arrangement twists occur as S-twists and torque twists as Z-twists. In the steady state the bundle exiting the friction zone had S-twists finally and the twists per length was uniform along the bundle radius. The steady state twists of the bundle at the exit of the friction zone were determined by two model constants and a process variable. The two model constants were composed of model parameters such as slippage ratio, minimum thickness of the fleece for bundling, the density ratio of the bundle to the input fleece, and also of process variables such as friction ratio, the speed ratio of the fleece feeding to bundle takeup, and the thickness of the input fleece. The process variable acting directly on the bundle twist was the fleece feeding width. Thus, the twist angle of the bundle in the friction zone varied with the radial position inside the bundle. The twist angle was the lowest in the vicinity of the bundle axis. As the fiber layer approaches the bundle surface, the twist angle increases.
Preparation and Characterization of PVDF/PU Bicomponent Nanofiber by Electrospinning
Lee, Hyun Jae ; Hong, Tae Min ; Lim, Sung Chan ; Won, Jong Sung ; Lee, Seung Goo ;
Textile Science and Engineering, volume 52, issue 2, 2015, Pages 88~96
DOI : 10.12772/TSE.2015.52.088
Bicomponent nanofibers with piezoelectric and latent-crimp properties were fabricated from two polymer solutions of polyvinylidene fluoride (PVDF) and polyurethane (PU) by electrospinning. Experimental conditions for electrospinning, such as applied voltage, solution concentration, and flow rate, were investigated to determine the optimal conditions for fabricating the bicomponent nanofibers. As a result, 21 wt% solution concentration, 0.5 ml/h flow rate, and 15 kV applied voltage were identified as optimum conditions for electrospinning the bicomponent nanofibers. The morphologies of the side-byside structure of the PVDF/PU fibers were observed. The formation of
-phase crystals by electrospinning was confirmed by Fourier transform infrared spectroscopy (FT-IR) and differential scanning calorimetry (DSC). Additionally, it was confirmed that the applied voltage does not have a significant effect on the formation of
-phase crystals. After the hydrothermal treatment, the
-phase crystalline content in the bicomponent fibers remained unchanged.
Preparation and Characterization of Coal Tar Pitch-based Activated Carbon Fibers. II. Cu(II) and Ni(II) Adsorption in Activated Carbon Fibers during Physical Activation
Choi, Bo-Kyung ; Yoon, Kwang-Eui ; Seo, Min-Kang ; Park, Soo-Jin ;
Textile Science and Engineering, volume 52, issue 2, 2015, Pages 97~103
DOI : 10.12772/TSE.2015.52.097
In this paper, the heavy metal ion adsorption behavior in coal tar pitch-based activated carbon fibers (ACFs) during physical activation is presented.
adsorption isotherms at 77 K were examined using Brunauer-Emmett-Teller (BET), Horvath-Kawazoe (H-K), and Barret-Joyner-Halenda (BJH) methods to characterize specific surface area, pore volume, and pore size distribution. The removal of heavy metal ions from ACFs was confirmed by atomic absorption spectroscopy (AAS). Experimental results for the ACFs showed a type I isothermal adsorption curve, which confirmed that the created pores were mostly microporous. After a 40-min steam activation, the fibers showed a high specific surface area of
. In addition, all heavy metal ions in the ACFs were adsorbed after about 20 min, and the adsorption reached equilibrium within 1 h. It was found that the adsorption capacity of the ACFs was improved by the presence of micropores but was also dependent on the specific surface area of the ACF.
Biodegradable Chitosan/PLGA/Polysorbate80 Nanofibrous Mat Fabrication and Application to Tissue-adhesion Barriers
Kim, Daeyeon ; Bang, Sumi ; Kim, Cheol Joo ; Kim, Won Il ; Kwon, Oh Hyeong ;
Textile Science and Engineering, volume 52, issue 2, 2015, Pages 104~112
DOI : 10.12772/TSE.2015.52.104
In the field of surgery, several instances of adhesions in the abdomen, bowel, uterus, and pelvis are observed. Severe post-operative adhesions cause pain in the pelvis and bowel, infertility, and intestinal obstruction. Despite much interest in preventing postoperative adhesion, these symptoms appear persistently. In this study, various composition of chitosan and PLGA blend nanofibrous sheets containing a small quantity of nonionic surfactant, polysorbate80 were fabricated by electrospining technique for application to anti-adhesion barrier. The average diameter of fabricated nanofibers as determined by SEM ranged between 100 to 130 nm. Surface hydrophilicity and biodegradability of nanofibrous mats increased with increasing chitosan content. However, cell attachment and proliferation on nanofibrous surfaces were decreased with increasing chitosan content, probably due to enhanced hydrophilicity. In vivo animal test confirmed that the Chitosan/PLGA(5:5)/Polysorbate80 nanofibrous sheet was sufficiently effective, than the PLGA nanofibrous sheet, in preventing undesired tissue adhesion.
Thermal and Acoustic Properties of Nanofilament Fabrics
Lee, Nu Ri ; Min, Mun Hong ; Kim, Han Seong ;
Textile Science and Engineering, volume 52, issue 2, 2015, Pages 113~119
DOI : 10.12772/TSE.2015.52.113
Nanofibers, which have larger specific surface areas than conventional fibers, significantly enhance the functionality of conventional fiber materials in addition to introducing new features. Thermal barrier and sound insulation tests were conducted to assess the thermal and acoustic properties of the nanofilament fabrics prepared from polyethylene terephthalate (PET)/modified PET sea-island bicomponent fibers. The results indicate that fabrics with filament diameter of 400 nm exhibited excellent thermal and sound insulation performance compared to the fabrics with filament diameter of 600 nm.
Development of a Precise Made-to-Measure System for Korean Air Force Winter Uniform Slacks
Kim, Dong Hyun ; Kim, Sungmin ; Park, Chang Kyu ;
Textile Science and Engineering, volume 52, issue 2, 2015, Pages 120~125
DOI : 10.12772/TSE.2015.52.120
A precise made-to-measure (MTM) system for producing Korean Air Force winter uniform slacks was recently developed and introduced in 2012 to reduce the rate of defects. However, a further reduction in defects with the conventional MTM system has become increasingly difficult. In this study, it was hypothesized that the major causes of defects were closely related to anthropometric factors. Hence, various statistical analyses were performed to solve this problem. Body scan data from a large number of soldiers were analyzed to categorize the shapes of the lower body. Defective garments were then analyzed to determine the anthropometric measurement associated with most defects, after which they were manually adjusted to fit the subject. Subsequently, by using a simple regression analysis, the relationship between the adjustment and related anthropometric measurement was investigated. Finally, an automated anthropometric data adjustment system was developed to provide appropriate size data to the automated pattern generation system.
Fabrication of Rewritable Pattern Images with Ultraviolet-responsive Polycaprolactone Electrospun Fibers
Ali, Shamshad ; Ahmed, Farooq ; Khatri, Zeeshan ; Kim, Seong Hun ;
Textile Science and Engineering, volume 52, issue 2, 2015, Pages 126~131
DOI : 10.12772/TSE.2015.52.126
For the first time, the photochromic spiropyran dye [1'-3'-dihydro-1',3',3'-trimethyl-6-nitrospiro [2H-1-benzopyran-2,2'-(2H)-indole] (indole) was successfully embedded as a guest molecule into the poly(
-caprolactone) (PCL) host polymer matrix via the electrospinning technique. The resulting PCL/Indole electrospun fibers exhibit photo-switchable properties without losing depth of color upon alternate irradiation with ultraviolet (UV) and visible light. We found that patterned color images could be recorded on the photochromic PCL/Indole electrospun fiber mats using photo-masked UV irradiation. Subsequent irradiation of the mat with visible light completely erased the recorded patterned color image. The transformation of indole from the colorless form to the colored form upon UV irradiation was confirmed by UV-visible spectrophotometry, fluorescence micrography, and water contact angle measurements. Field emissionscanning electron microscopy images revealed the smooth morphology of the PCL/Indole electrospun fibers. Additionally, the average diameter of the PCL/Indole electrospun fibers was significantly lower than that of the PCL electrospun fibers. Good to excellent ratings were achieved for the washing fastness of the PCL/Indole electrospun fiber mats.
Enhancement of Poly(L-lactic acid)/Poly(D-lactic acid) Stereocomplexation by Adding Poly(DL-lactic acid)
Kim, Sung Hea ; Lee, Sang Cheol ;
Textile Science and Engineering, volume 52, issue 2, 2015, Pages 132~135
DOI : 10.12772/TSE.2015.52.132
Ternary blends of poly(L-lactic acid)(PLLA)/poly(D-lactic acid)(PDLA)/poly(DL-lactic acid)(PDLLA), with the PLLA/PDLA blend ratio fixed at 50:50 (w/w), were prepared by the solution blending method, and their thermal properties were investigated by differential scanning calorimetry. Ternary blends containing less than 30% PDLLA exhibit double melting peaks at around
are the melting peaks of the homopolymer (PLLA and PDLA) and stereocomplex crystals, respectively. On the other hand, blends containing more than 50% PDLLA exhibit only one melting peak at about
, which corresponds to the melting peak of the stereocomplex crystal. Further, the heat of fusion of the homopolymer crystals decreases with increasing PDLLA content in the blend, whereas that of the stereocomplex crystal increases with increasing PDLLA content. Therefore, it may be concluded that while the addition of PDLLA to the PLLA/PDLA (50:50) binary blend enhances the stereocomplexation of PLLA and PDLA, it also disturbs the crystallization of the homopolymers.