• Title/Summary/Keyword: sulphur black dye

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Dyeing Property of Nylon Suede Fabric Dyed with Sulphur Black Dye (흑색 황화염료에 의한 나일론 스웨이드 직물의 염색 특성 연구)

  • Lee, Minju;Lee, Jeong Hoon;Jung, Dae-Ho;Lee, Mikyung;Ko, Jae Wang;Lee, Seung Geol
    • Textile Coloration and Finishing
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    • v.29 no.3
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    • pp.115-121
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    • 2017
  • Demands for nylon suede as an artificial leather are increasing due to its functionality and aesthetics. To achieve high value added nylon suede based on green technology, this study was carried out in order to obtain useful data for the nylon suede fabrics with eco-friendly dyeing process by a pad-steam method instead of a dip dyeing process using sulphur black dye to reduce the industrial waste of water. The dyeability of the nylon suede was investigated according to reducing temperatures, dye concentrations, and reducing agent's concentrations. Throughout the results of the CIE $L^*a^*b^*$ and Munsell values, the optimized dyeing conditions of the nylon suede using sulphur black dye are $70^{\circ}C$ of dyeing temperature, 30% o.w.f. of dye concentration, and $9g/{\ell}$ of reduction agent concentration, respectively. Furthermore washing colorfastness, light colorfastness and perspiration colorfastness were achieved in the range of 4-5 grades.

Dyeing Properties of Ultra-fine Nylon Suede Non-woven Fabric with Sulphur Black Dye by Pad-steam Process (흑색 황화염료와 초극세사 나일론 스웨이드 부직포 직물의 Pad-steam 염색 및 염색성 평가)

  • Kim, Min Seok;Jung, Dae-Ho;Lee, Mikyung;Ko, Jae Wang;Lee, Jeong Hoon;Lee, Seung Geol
    • Textile Coloration and Finishing
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    • v.29 no.4
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    • pp.211-222
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    • 2017
  • In this study, we investigated the dyeing properties of the ultra-fine nylon suede non-woven fabric with Sulphur black dye regarding to the effect of dye concentrations, reducing agent contents, sodium carbonate contents, antioxidant contents, immersion temperature and exposure time in air by pad-steam process. The optimal conditions of dyeing for the ultra-fine nylon suede non-woven fabric were determined with dye concentration of 30% o.w.f., reducing agent content of $9{\sim}13g/{\ell}$, sodium carbonate content of $1{\sim}4g/{\ell}$, antioxidant content of $1{\sim}5g/{\ell}$, immersion temperature of $70^{\circ}C$, exposure time of 20 minutes in air and immersion time of 1 minute, respectively. Meanwhile, the colorfastness to washing, the colorfastness to light, and the colorfastness to perspiration for dyed ultra-fine nylon suede non-woven fabric were achieved in the range of 4-5 grades. The formaldehyde and arylamine were not detected on the ultra-fine nylon suede non-woven fabric by KC tests.