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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
> Journal Vol & Issue
Textile Science and Engineering
Journal Basic Information
Journal DOI :
The Korean Fiber Society
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Volume & Issues
Volume 41, Issue 6 - Dec 2004
Volume 41, Issue 5 - Oct 2004
Volume 41, Issue 4 - Aug 2004
Volume 41, Issue 3 - Jun 2004
Volume 41, Issue 2 - Apr 2004
Volume 41, Issue 1 - Feb 2004
Selecting the target year
A Study on the Manufacture of Polypropylene Split Yarn and Tensile Property of the Woven Fabric
Textile Science and Engineering, volume 41, issue 5, 2004, Pages 305~311
Polypropylene(PP) film yarns are generally classified as two types : slit yarn and split yarn. Production of PP film yarn has some advantage over the production of conventional PP filament yarn. In this study, high denier PP split yarn could be produced by introducing a cutting drum m/c in the drawing part of a slit yarn production line. It was possible to produce uniform and extensible PP split yarn and its woven fabric on a water-jet weaving loom. The tensile strength and strain of split yarn are 3.2-3.5 g/d and 11-14%, respectively. In the comparison of tensile test methods of woven fabric, higher value of tensile strength were obtained in the order of KS K 0520, KS K 0753, and KS F 2124. The weft picking condition of PP split yarn and sewing efficiency of its woven fabric, especially for the higher denier yarn and higher tensile strength woven fabric, are better than PP slit yarn and its fabric.
Development of an Evaluation Method for Tactile Properties of Sportswear Fabrics Using Quad Analysis
Textile Science and Engineering, volume 41, issue 5, 2004, Pages 312~316
Recently, many researches have been focused on functional fabrics with a high level of wear comfort. Many descriptive models have been developed based on the subjective feeling determined through a series of wear trials. Furthermore, some comprehensive standardized methods were developed by combining the measurement devices and statistical modeling methodology. Most of researches in the field take a similar approach that is to try to build prediction models for objective comforts by finding correlation between a series of data measured and subjective rating. The approaches, however, have serious problems of low repeatability and reproducibility. This research is aimed at exploring the feasibility of applying the Quad analysis to evaluate subjective tactile properties. The traditional 'rating scale method' has been replaced by a new method to produce more reliable subjective evaluation results. The tactile properties of the sportswear fabrics in the market have been measured by KES-FB, and correlated with the subjective rating obtained by the paired comparison experiments of the Quad analysis. The evaluation method developed in this study has been found to be more reliable both in repeatability and reproducibility.
Quality Assessment of Quick Sweat Absorbency and High Speed Drying of Fabrics Using a Psychophysical Method
Textile Science and Engineering, volume 41, issue 5, 2004, Pages 317~321
Quick sweat absorbency and high speed drying fabrics are commonly used to enhance thermophysiological comforts of a variety of sportswear. Three types of sportswear fabrics (HC, DC, FH) were evaluated and classified by PSE (point of subjective equality) minimum discriminating stimuli to human body by a psychophysical method. Objective factors are clinging force and drying time while subjective factors are clinginess and dampness. Each factor was measured and then PSE was calculated for clinginess and dampness. Quality of the quick sweat absorbency and high speed drying fabrics was assessed by a rating scale of 5 according to the time to reach the PSE of dryness (5th level).
Characterization of Wool Dyeing with Henna
Textile Science and Engineering, volume 41, issue 5, 2004, Pages 322~327
Henna is a natural colorant and has been used to dye hair, skin and leather since civilization began. It produces a reddish brown to orange shade. The major color components of Henna are Lawsone(2-hydroxy-l,4-naphthaquinone) and Luteolin (3',4',5,7-tetrahydroxy-flavone). In this study, the optimum dyeing conditions for Henna on to the wool fabrics were investigated. Wool fabrics were dyed with Henna at various time, temperature, concentration and pH conditions. Dyeing property, color fastness and anti-bacterial properties were evaluated. From the results, the optimum dyeing conditions for Henna on to the wool fabrics are 60℃, pH 7, 2% o.w.b., and 45 min. The color fastness of the wool fabric dyed with Henna to washing, dry-cleaning, and perspiration were grade 4-5. The color fastness to light was grade 3. These results are relatively good compared with other natural dyes. Moreover fabric dyed with Henna showed excellent antibacterial activity.
Changes in the Mechanical and Water Absorption Properties of Split-type Nylon/PET Microfiber Fabrics After Contamination with Oil and Repeated Washing
Textile Science and Engineering, volume 41, issue 5, 2004, Pages 328~334
In this study, changes in the mechanical and water absorption properties of the split-type nylon/PET microfiber fabrics after contamination with oil and repeated washing were investigated. As the period of exposure to the oil increased, LT and RT decreased slightly indicating reduction of dimensional stability, whereas no significant change in tensile energy was found. In the case of surface properties, MIU decreased due to remaining oily soil, and SMD increased due to increase in fabric bulkiness. In addition, as immersion time increased, water absorbency of fabric decreased due to remaining oily soil on the surface of fiber. On the other hand, as the number of contamination and washing cycles increase, LT and RT increase initially due to the contraction of fabric, then these values decrease gradually as further split of fiber proceeds. MIU increased with increase in fabric contraction. SMD value increased in the beginning due to contraction, then gradually decreased with further split of split-type Nylon/PET microfiber. In addition, due to the remaining contamination and repetition of cleansing process, water absorbency of split-type Nylon/PET microfiber fabrics decreased initially then increased as further split occurred.
Durable Press Finishing of Silk/Ramie Union Fabric with BTCA - The Evaluation of Ester Crosslinkages by FT-IR Spectroscopy and HPLC Analysis -
Textile Science and Engineering, volume 41, issue 5, 2004, Pages 335~341
Silk and ramie union fabric, DP finished with BTCA, were analyzed by FT-IR and HPLC and the physical properties were evaluated. Through FT-IR analysis, we could identify cross-linking by the presence of carbonyl peak in ramie and silk appearing at 1725
/. The peak intensity increased as the concentration and the temperature increased. With the use of HPLC, we could measure the amount of BTCA cross-linked using a calibration curve. The amount of BTCA detected increased in a straight line as the concentration and temperature increased. Crease resistance was higher than that of untreated silk and ramie union fabric under each processing condition and it increased in a straight line as the concentration and temperature of BTCA finishing increased.
Solution Properties of Chitosan Polymer(I) - Variation of Viscosity with Temperature and Time in Acetic Solution-
Textile Science and Engineering, volume 41, issue 5, 2004, Pages 342~346
Viscosity variation ensuing from processing temperature and time elapsed in acetic solution of chitosan was investigated by rotary viscometer. The solution showed a typical behavior of pseudoplastic liquid where the gradient of shear stress decreases as strain rate increases. The apparent viscosity decreased as chitosan polymer degraded with temperature rise and time elapsed in the solution. And the decrease in viscosity occurred rapidly in a fixed time interval at each temperature. The proportionality of viscosity to temperature was confirmed by temperature superposition curve that was obtained with the temperature dependence shift factor a
in WLF equation. Intrinsic viscosity was linearly proportional to apparent viscosity within a fixed range depending on strain rate. The activation energy of chitosan was about 55.2 KJ/mole in the acetic solution, which was calculated from intrinsic viscosity based on the Andrade-Eyring equation.n.
Study on the Drawing and Deiodination of the Poly(vinyl Alcohol) Film Iodinated in Solution Before Casting
Textile Science and Engineering, volume 41, issue 5, 2004, Pages 347~357
Two kinds of poly(vinyl alcohol)(PVA) films iodinated in solution before casting (IBC) with weight gains of 100%(slightly crystalline) and 150%(completely amorphous) were drawn at room temperature. Iodine was eliminated by immersing the films in sodium thiosulfate solutions in ethylene glycol(EG)/water and N-methylformamide(NMFA) followed by washing and drying. The degree of swelling of undrawn film on deiodination was lower and the deiodination time was longer in the NMFA solution than in the EG/water solution. All the undrawn films after deiodination and drying exhibited considerable and mutually similar crystallinity. While a major portion of the crystallization occurred in the course of drying after immersing in the EG/water solution, the larger half of the crystallization occurred in the course of immersing in the NMFA solution. Drawability of the IBC film was very high even at room temperature to readily produce a draw ratio of 8. The degree of swelling of the drawn film on deiodination decreased continuously and the deiodination time increased and then decreased with increasing draw ratio. The degree of swelling and the deiodination time were relatively low and long, respectively, when the NMFA solution was used as solvent. The crystallinity, orientation, initial modulus of the drawn films after deiodination and drying increased with draw ratio, and was relatively high when the NMFA solution was used as solvent and the weight gain were lower.
Studies on the Physical Properties of Fullerene-Modified Polystyrenes
Textile Science and Engineering, volume 41, issue 5, 2004, Pages 358~364
Star-shaped polystyrenes with the fullerene core were synthesised via anionic polymerization. The solution, thermal, and UV absorbance properties were investigated as a function of number of branched polystyrene chains on the fullerene core. The solution viscosity (intrinsic viscosity) of the fullerene-modified polystyrene decreased with the number of branching due to molecular entanglement. The better coating property of the fullerene-modified polystyrene compared with those of the polystyrene/fullerene mixtures seems to arise from a lower aggregation state of the fullerene core induced by the branched polystyrene chain. An increase in the glass transition temperature of the modified polystyrene with the number of branched chains was observed as well.
Studies on the Structural and Mechanical Properties of Polyurethane Rigid Foams Prepared Using Starch as a Main Component of Polyols
Textile Science and Engineering, volume 41, issue 5, 2004, Pages 365~377
In this study, we prepared polyurethane rigid foams through a one-shot process, using 100 parts of polyols (PEG:glycerol:starch=9:1:l0 in the weight ratio), 60 to 100 parts of 2,4-TDI as an isocyanate, and 1 to 20 parts of water as a blowing agent. The foams had open-cell structure, whose cell size was approximately 0.5-1 mm and the thickness of the cell wall decreased with increasing water content. The apparent densities also decreased with increasing water content, 0.232-0.141 g/㎤ in TS5-60, 0.233-0.074 g/㎤ in TS5-80, and 0.265-0.085 g/㎤ in TS5-100, respectively. To confirm the reactions between isocyanate groups of 2,4-TDI and hydroxyl groups of polyols (PEG, glycerol, and starch) or water, FT-IR spectroscopic analysis and a solubility test in DMF were performed. The thermal property of the foams was investigated using DSC. From the results of the impact test, the impact resistance of the foams showed a maximum of 48.092 J/m at TS5-60-6, 70.951 J/m at TS5-80-8, and 88.062 J/m at TS5-100-8, respectively. From the compression test, the compressive stress showed a maximum of 402.5 KPa at TS5-60-6, 621.3 KPa at TS5-80-6, and 604.9 KPa at TS5-100-8. And the compressive elastic modulus showed a maximum of 14.94 MPa at TS5-60-6, 15.72 MPa at TS5-80-7, 16.52 MPa at TS5-100-8, respectively.
A Study on the Discharge Capacity of Plastic Board Drains
Textile Science and Engineering, volume 41, issue 5, 2004, Pages 378~385
The vertical discharge method is a process of discharging excess water in the ground to stabilize the ground. Among the vertical discharge methods PBD method is one of the most widely used. The discharge capacity of PBD decreases due to two main reasons. One is clogging of the filter and the other is reduction of the flow area of PBDs. PBDs usually consist of nonwoven filter and plastic core, which are deformed by soil pressure under the ground. In this study, the effects of the shape of core and tensile properties of filter on the discharge capacity were investigated. The deformation of the filter and core showed strong relationship to the discharge capacity. The filter was elongated and deformed at low pressure levels, and the core starts to deform at high pressure levels. Both deformations of the filter and the core decreased the discharge capacity.