• Proceedings of the Korean Society of Dyers and Finishers Conference
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• 2011.03a
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• pp.34-34
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• 2011

PET/면, 나일론/PET, 나일론/면 등 다양한 복합섬유소재를 염색하기 위해서는 복합섬유소재를 구성하는 각각의 섬유소재에 따라 적합한 염료를 선정하고 그에 맞는 염색방법을 사용하여 진행되고 있다. 하지만 이런 경우 색상과 견뢰도 등의 물성을 맞추기 위한 복잡한 염색공정 및 긴 염색시간에 의한 생산비용 상승 등 여러 문제점이 있다. 이러한 문제점을 해결하기 위해 하나의 염료를 이용하여 다양한 섬유를 염색하는 방법에 대한 많은 연구가 이루어지고 있다. 새로운 염료합성의 경우 섬유와 결합할 수 있는 반응기를 분산염료구조에 도입하여 염색조건에 따라 다양한 섬유를 염색할 수 있는 universal dye의 개발에 초점이 맞추어져 있다. 반응성염료와 분산염료의 특성을 동시에 만족시키기 위한 일환으로서 염료의 분자 구조 내에 상기의 염료특성을 동시에 발휘하는 소위 "반응성 분산염료"의 개발이 이에 속한다. 본 연구의 목적은 화학구조가 다른 네 종류의 sulphatoethylsulphone기를 갖는 반응성분산염료들을 합성하고 이들의 나일론, PET, 면 및 교직물에 대한 염색성을 분석하는 것이다. 면 섬유에 대한 Dye 1~4의 염색온도에 따른 염색성을 살펴보면, 각 염료들의 염색성은 염색온도에 따라 큰 영향을 받고 있음을 알 수 있으며, Dye 1, 4는 염색온도가 높을수록 K/S 값이 증가하고 Dye 2, 3은 염색온도가 낮을수록 K/S 값이 증가함을 알 수 있다. Nylon에 대한 Dye 1의 염색속도는 pH 4 > pH 5 > pH 8 > pH 7 > pH 6의 순서로 나타나 pH 6에서의 염착 평형이 pH 4보다 40분 정도 늦게 도달하였다. 나일론과 PET의 동욕염색에 있어 Dye 1은 나일론의 경우 초기부터 빠른 흡착을 보이며 $100^{\circ}C$가 되는 60분에는 K/S값이 16에 도달하여 염착 평형에 근접한 것을 알 수 있으며, PET는 $100-200^{\circ}C$ 사이에서 염색속도가 빨라지며 본격적으로 흡수하였다. N/C 교직물에 대한 Dye 2, 3의 빌드업성은 두 염료 모두 염료농도의 증가에 따라 K/S 값 역시 선형적으로 증가하는 것으로 나타났다. 나일론 섬유는 네 가지 염료로 우수하게 염색되었고, 면 섬유는 수용성기를 가진 Dye 2와 3, 그리고 PET 섬유는 소수성이 높은 Dye 1과 4가 적합하였다. N/P 및 N/C 교직물의 염색에 있어 나일론 성분으로 염료가 더 많이 흡착하여 나일론섬유가 더 진하게 염색되지만 교직물의 직물조직에 의하여 표면과 이면은 각각 거의 동색으로 보였다.

• Proceedings of the Korea Society of Costume Conference
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• 2005.10a
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• pp.170-171
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• 2005

• Proceedings of the Korea Society of Costume Conference
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• 2005.05a
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• pp.113-113
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• 2005

• Journal of Fashion Business
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• v.11 no.1
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• pp.15-25
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• 2007

As a part of the study for the materials development of compound feelings, therefore, this study investigated into the effects of the colors of warp and weft on the overall colors of fabrics, along with the visual changes of colors by the measuring angle of both warp and weft, by means of cross-dyeing of cotton/PET union fabrics. First, the dyeing of cotton and PET fabrics individually with the same color, the dyeing of PET fabrics followed by that of cotton fabrics resulted in a small difference in color than the dyeing in the reversed order. Second, in the case of the dyeing of cotton/PET union fabrics with the color of one fiber fixed and that of the other in ten colors, the color of cotton fiber, which is warp, gave much influence. In addition, the color change was remarkable among complementary colors, while it was negligible among adjacent colors. Third, in the case of dyeing of cotton/PET union fabrics with the color of one fiber fixed and that of the other in ten colors, the results were different by the measuring angle. When PET was fixed in green and cotton was dyed in ten colors, color-deepening was observed by the inclination in the direction of warp and weft without the dominance over all colors like cotton. When cotton was dyed in red and PET in ten colors, the color of PET appeared dimly in the horizontal case by the direction of the light, and red appeared as inclined in the direction of warp and weft. This is because of the dominance of cotton color over the overall color, since the density of cotton fiber, the warp of union fabrics, is higher than that of PET, the weft. Thus, this is to be considered in the selection of the warp's color. In view of the above results, the color changes are outstanding when the color of warp dominates the overall color and when the colors of warp and weft are complementary, in comparison with the case when the colors are adjacent. The colors also change by the measuring angle.

• Journal of Fashion Business
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• v.10 no.4
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• pp.151-162
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• 2006

This study investigated into the effects of the colors of warp and weft on the overall colors of fabrics, along with the visual changes of colors by the measuring angle of both warp and weft, by means of cross-dyeing of cotton/PET union fabrics. First, the reflectance of polyester is higher than that of cotton over the whole wavelength. Second, the dyeing of polyester uses the disperse dyes and that of cotton uses fiber-reactive dyes, the differences in the features of dyes and the reflectance of fabrics cause the same colors to be perceived different by the angle of observation. Third, the dyeing of cotton and PET fabrics individually with the same color revealed that the dyeing of cotton and PET fabrics in one bath resulted in a small difference in colors between the two fabrics than the separate dyeing in two bathes. In the case of one bath, the dyeing of PET fabrics followed by that of cotton fabrics resulted in a small difference in color than the dyeing in the reversed order. Fourth, when cotton/PET union fabrics were dyed in ten colors, the difference in colors between the two fabrics was small; and due to the difference in the density of warp and weft of union fabrics, some difference was detected in comparison with the results of separate dyeing of cotton and PET fabrics in one bath. The latter did not produce the changes in color which was recognizable with the naked eyes. Fifth, when cotton/PET union fabrics were dyed in ten colors, any color change was not observed by the measuring angle, and the inclination in the direction of warp or weft resulted in the tendency of color-deepening. In the measurement of the latter, the inclination in the direction of weft resulted in the higher color-deepening than that in the direction of warp, due to the influence of weft.

• Journal of the Korean Society of Clothing and Textiles
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• v.20 no.6
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• pp.1138-1150
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• 1996

This study was carried out to investigate the effects of dyeing on the mechanical properties, primary hand, total hand value (THV), and total appearance value (TAV) of woven fabrics. Cotton, PET, nylon, cotton/PET, and cotton/nylon woven fabrics were used as test specimens. Each of fabric was dyed under the same conditions as the fabrics for sportswear which consumers have selected as best. Mechanical properties of specimens were measured by KES-FB system and primary hand and THV were calculated by equation KN -201-MDY and KN-301-WINTER respectively. TAV was calculated by KN (eq. 10). The results were as follows: 1. In mechanical properties. tensile energy increased when cotton and two cotton mixture fabrics were dyed and decreased when polyester and nylon fabrics were dyed. Bending rigidity and shear rigidity decreased after all fabrics were dyed except nylon and cotton/ nylon mixture fabrics showing higher rigidities. Cotton fabrics showed higher surface roughness while other fabrics did lower values after dyeing. 2. In evaluation of primary hand and total hand , four primary hands of cotton fabrics so decreased after dyeing that THV were lowered. Numeri, Fukurami, and Sofutosa in primary hand of polyester, cotton/polyester, and cotton/nylon fabrics and Koshi and Numeri of nylon fabrics increased after dyeing and therefore THV of four fabrics were improved. 3. Cotton and polyester fabrics showed higher TAV due to their lower bending and shear rigidity, while nylon and cotton/nylon fabrics did lower values due to their higher shear rigidity. 4. It was proposed that the method of dyeing or treatment for minimizing the decrease of THV of cotton fabrics and TAV of nylon fabrics should be developed.