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면직물에의 천연 인디고 염색 - 일단계 환원/염색 공정 -

Natural Indigo Dyeing of Cotton Fabric - One-step reduction/dyeing process -

  • 신윤숙 (전남대학교 의류학과/생활과학연구소) ;
  • 조아랑 (전남대학교 의류학과/생활과학연구소) ;
  • 류동일 (전남대학교 고분자.섬유시스템공학과)
  • Shin, Youn-Sook (Dept. of Clothing & Textiles/Human Ecology Research Institute, Chonnam National University) ;
  • Cho, A-Rang (Dept. of Clothing & Textiles/Human Ecology Research Institute, Chonnam National University) ;
  • Yoo, Dong-Il (Dept. of Polymer and Fiber System Engineering, Chonnam National University)
  • 투고 : 2010.03.06
  • 심사 : 2010.06.10
  • 발행 : 2010.06.27

초록

The objective of this study is to investigate the characteristics of natural indigo dyeing of cotton fabric. Reduction and dyeing were carried out by one-step process using an infrared dyeing machine at the liquor ratio of 1:100, and subsequently oxidation and washing in water were followed. Dye uptake was increased with the increase of indigo concentration. Over the full range of dyeing tests, the dyeing condition was optimized to $40^{\circ}C$ for 40min. For most of dye concentrations, the cotton fabrics showed mainly PB color. Maximum K/S value was shown at 4g/L of sodium hydrosulfite concentration and the color strength increased with the increase of dye concentration. Value(lightness) decreased with the increase of dye uptake irrespective of mercerization or reduction method, while the mercerized cotton showed two times higher dye uptake than the untreated cotton. Whereas hue of the untreated cotton showed large decrease of P character(5.6~3.5 PB) with the increase of dye uptake, that of the mercerized cotton increased P character(4.7~5.5 PB). Irrespective of mercerization, value and chroma decreased with the increased of dye uptake. In addition, the untreated showed lower chroma than the mercerized cotton. In the case of traditional reduction, hue of the untreated cotton was changed very little with the increase of dye uptake. For hydrosulfite reduction, P character decreased with the increase of dye uptake. The difference of hue value was small with the change of reduction method(hydrosulfite reduction or traditional fermentation). Color character was not influenced by the changed maximum absorption wavelength. Washing fastness showed 4~4/5 shade change rating without any staining. And dry rubbing fastness was good at low color strength. The bacterial reduction ratios of dyed cotton fabric were also increased.

키워드

참고문헌

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피인용 문헌

  1. Study on the Improvement of Dyeability of Commercial Indigo Leaf Powder for the Purpose of Utilizing It in Indigo Dyeing vol.38, pp.4, 2014, https://doi.org/10.5850/JKSCT.2014.38.4.540
  2. Dyeing of Nylon/Cotton Blend with Acid Dyes Using Sodium 2-(2,3- dibromopropionylamino)-5-(4,6-dichloro-1,3,5-triazinylamino)-benzenesulfonate vol.24, pp.1, 2012, https://doi.org/10.5764/TCF.2012.24.1.8
  3. A Study on the Current Status and Dyeing Characteristics of Natural Indigo Powder Dye vol.35, pp.7, 2011, https://doi.org/10.5850/JKSCT.2011.35.7.736
  4. Indigo Dyeing of Mongolian Cashmere Fiber vol.40, pp.6, 2016, https://doi.org/10.5850/JKSCT.2016.40.6.979
  5. Evaluation of aroma functionality imparted on natural indigo-dyed cotton fabrics vol.18, pp.6, 2017, https://doi.org/10.1007/s12221-017-6942-0
  6. Pretreatment Process for Production of the Gromwell Colorants Powder vol.24, pp.1, 2012, https://doi.org/10.5764/TCF.2012.24.1.18
  7. Optimization of Cellulose Dyeing with Natural Indigo: Ramie dyeing by One-step Reduction/dyeing Process vol.13, pp.2, 2011, https://doi.org/10.5805/KSCI.2011.13.2.263
  8. Preparation Method of Indigo Standard Solution and Variation of Indigo Contents in Blue Dye Extract from Breeding Lines of Persicaria tinctoria H. Gross vol.21, pp.3, 2013, https://doi.org/10.7783/KJMCS.2013.21.3.213