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pISSN : 1229-0033 / eISSN : 2234-036X

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2004, Vol.16, No.6

  • 1.

    The Study of the Dyeability of Laurel Tree Extracts

    배기현 | Yeon Uk Jeong | Lee Shin hee | 2004, 16(6) | pp.1~9 | number of Cited : 11
    Abstract PDF
    The dyeings of cotton and silk fabric with Laurus tree extracts were investigated. The colorant was extracted with distilled water at 100℃ for 1h. Dyeability(K/S), color fastness and antibacterial property of cotton and silk fabric were tested under conditions of various time, temperature, concentration, repeat-number of dyeing and mordants. The characteristics of dyeings Laurus extracts were figured out by K/S and CIELab values and color-fastness test was estimated in terms of wash fastness and light fastness. The maximum wavelength of spectrum was 670nm. The K/S value of cotton and silk fabric increased with increasing dyeing time and the exhaustion was saturated in 90min. Optical dyeing temperatures of cotton and silk fabrics were 60℃ and 80℃, respectively. The mordant effect on cotton fabric was achieved using Fe mordant. On the other hand, the mordant effect on silk fabric was obtained using Fe and Cu mordants. The wash fastness of cotton fabric was higher than that of silk fabric. Antibacterial property of silk dyeing was greater than that of cotton dyeing. In addition, the excellent antibacterial effect was imparted by Fe-post mordant method.
  • 2.

    Dyeing Properties of Rose Flower Extracts on Silk Fabrics

    Sungwoo Nam | 2004, 16(6) | pp.10~15 | number of Cited : 3
    Abstract PDF
    The colorants were extracted from the flower leaf of rose using a buffer solution. Dyeing properties and the fastness of silk fabrics dyed with rose flower extracts were investigated.K/S values of dyed fabrics were increased as the concentration of rose flower extracts was increased. Optimum dyeing temperature of rose flower extracts was 30℃. Fastness were generally good except light fastness which was extremely poor.
  • 3.

    A Study on the Chemical and Dyeing Properties of Rhus Verniciflua Extract

    KIM AE SOON | 2004, 16(6) | pp.16~22 | number of Cited : 9
    Abstract PDF
    This study was carried out to investigate K/S values, surface color, the fastness to washing, bacteria reduction rate of the silk and cotton fabrics dyed with Rhus verniciflua extract under the various dyeing conditions. The optimum dyeing temperature, dyeing time, dyeing pH and repetition of the silk fabrics dyed with Rhus verniciflua extract were 100℃, 30min., pH 5, five times repetition respectively, but in the cotton fabrics, it were 60℃. 30min., pH 7, one times repetition. It were colored orangish Yellow in the silk fabrics and colored bright yellow in the cotton fabrics dyed with Rhus verniciflua extract. Surface color(munsell value) was not changed by the mordanting agents but those of the silk showed high tone when mordanting with stannous chloride, and it was decolored and darked when mordanting with ferric sulfate. The fastness to washing in the silk fabrics dyed with mordanting agents improved in 45 grade, but the cotton fabrics were 34 grade, so washing fastness of the silk and cotton fabrics were significantly improved when washing with the neutral detergent. The bacteria reduction rate of the silk fabrics increased drastically by dyeing of Rhus verniciflua extract.
  • 4.

    Dyeability and Color Fastness to Light of Cotton Fabric in Natural Dyeing

    Soomin Lee | SONG WHA SOON | 2004, 16(6) | pp.23~29 | number of Cited : 6
    Abstract PDF
    The purpose of this study is to improve the dyeability and the color fastness to light of cotton fabric dyed with extraction of cinnamon cassia. Cotton fabric was pretreated with chito-colla to enhance the dyeability, and K/S values were compared chito-colla pretreated fabric and untreated fabric. In addition, to improve of color fastness to light of dyed fabric, it was used FFC compound as mordant. Also, it was measured SOD-liked activity of FFC compound and lifht fastness of dyed fabrics. The results are as follow; K/S value of cotton fabric pretreated with chito-colla(5%) was much more increased than untreated fabric. SOD-liked activity of FFC compound was observed over 70%. Light fastness of cotton fabric treated with FFC compound was 3~4 grades.
  • 5.

    Effect of Ar-Plasma Treatment on Mechanical Properties of Acrylic Fiber

    Eun-Deock Seo | 2004, 16(6) | pp.30~34 | number of Cited : 0
    Abstract PDF
    Polyacrylontrile fiber was modified with argon low temperature plasma by RF glow discharge at 240 mTorr, 40 W to investigate the surface morphological changes and mechanical characteristics such as elongation, tenacity, and modulus. Analysis of the SEM images revealed that the plasma treatment resulted in significant ablation on the surfaces rendering a severe crack formation. The morphological changes were evident with short treatment time of argon plasma although longer treatment time damaged the surface more severely. The mechanical characteristics such as tenacity and elongation were deteriorated due to the plasma treatment. The tenacity of the fiber treated with argon-plasma for 5 min showed a decreased value up to 21.9 % when compared to the untreated fiber. While the corresponding initial modulus(0 - 1%) increased markedly up to 44.3 %.
  • 6.

    A Study on the Physical Properties of ATY Produced with Nylon FDY and POY

    Seung-Jin Kim | 김재우 | 홍상기 | 2004, 16(6) | pp.35~43 | number of Cited : 0
    Abstract PDF
    This study surveys the physical properties of ATY produced with FDY and POY. ATY is made with 70d Nylon FDY and 80d Nylon POY using AIKI air jet texturing machines, respectively. The processing parameters such as air pressure and yarn speed are varied, and air pressure is varied ranging with 8.5bar, 10.5bar and 11.5bar, and yarn speed is varied ranging with 400m/mim, 450m/mim, and 500m/min. The various physical properties of ATY made by POY and FDY denier, wet shrinkage, dry shrinkage, tensile properties, thermal stress and instability are measured and discussed with air pressure and yarn speed. The shrinkage simulation of ATY is performed for analysing the process shrinkage on the dyeing and finishing processes.