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Dyeing Method and Properties of a Novel Blue Azo-Anthraquinone Reactive Dye on Cotton

1
School of Environmental & Municipal Engineering, Qingdao University of Technology, Qingdao 266033, China
2
State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116012, China
*
Authors to whom correspondence should be addressed.
Academic Editor: Pierre-Antoine Bouit
Molecules 2019, 24(7), 1334; https://doi.org/10.3390/molecules24071334
Received: 21 March 2019 / Revised: 29 March 2019 / Accepted: 1 April 2019 / Published: 4 April 2019
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Abstract

A novel blue azo-anthraquinone reactive dye was evaluated in the dyeing of cotton by using a dip–pad–steam process. Dyeing method and properties were examined in detail and the results showed that the dyeing method consisting of dye concentration of 25 g/L, sodium carbonate of 12 g/L, dipping time of 3 min and steaming time of 30 min was the most effective when a conventional “one-dip–one-nip” process was used. The fixation of the dyes on cotton could reach up to 93.4%, the wash and rub fastness both reached grade 4 above, and the light fastness reached grade 4–5 above. Such colored cotton showed very close colorimetric properties. View Full-Text
Keywords: azo-anthraquinone dyes; reactive dyes; dyeing properties; dyeing method; high fastness azo-anthraquinone dyes; reactive dyes; dyeing properties; dyeing method; high fastness
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Shan, B.; Xiong, W.; Zhang, S. Dyeing Method and Properties of a Novel Blue Azo-Anthraquinone Reactive Dye on Cotton. Molecules 2019, 24, 1334.

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