Study on the salt-free low-alkaline reactive cotton dyeing in high concentration of ethanol in volume

Dong, Xia; Gu, Zhijie; Hang, Caiyun; Ke, Gangqiang; Jiang, Liwen; He, Ji‐Huan

doi:10.1016/j.jclepro.2019.04.006

Cited by 58 publications

(26 citation statements)

References 35 publications

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“…The experiment was conducted with a small amount of water and the results revealed that the dye uptake was better than that using conventional dyeing, and also that the use of a hydrophobic solvent such as dichloromethane can support level dyeing by uniformly dispersing and conveying a small amount of dye‐dissolved water to fabric. Attempts have also been made to dye cotton fibre in an ethanol‐water system …”

Section: Early Development Of a Solvent‐assisted Dyeing System On Cotmentioning

confidence: 99%

“…Due to growing environmental concerns, several alternative methods for dyeing cotton fibre have been investigated and reported in the literature, including neutral pH dyeing, supercritical carbon dioxide dyeing, reverse micellar dyeing, low‐salt or salt‐free dyeing, clay nanoparticle dyeing, silicone‐based dyeing, two‐solvent miscible dyeing, dyeing with reused wastewater, dye‐solvent suspension dyeing and natural mordant dyeing . The addition of different dyeing methods, modifications of fibre properties (such as cotton cationisation and polymer grafting on cotton), inventions of new reactive dyes with reduced requirements for salt and soda ash, and advancements in effluent treatment technologies, have also been reported.…”

Section: Future Research Recommendations and Directionsmentioning

confidence: 99%

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Non‐aqueous dyeing of cotton fibre with reactive dyes: A review

Tang

Kan

2020

Coloration Technology

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This study reviews the evolution of and recent developments in non-aqueous reactive dyeing systems for cotton fibre. As conventional water-based reactive dyeing causes adverse effects to the environment because of the need for huge quantities of water and chemicals, as well as generating a substantial amount of effluents, one of the alternative ways to alleviate pressure on the environment is to switch the dyeing medium from an aqueous water-based approach to a non-aqueous solvent-assisted approach. Among a wide variety of non-aqueous dyeing methods, this review focuses on several non-aqueous dyeing systems, including dyeing textile fibres with chlorinated solvents, dyeing cotton with the use of reverse micellar systems, a dye/ solvent suspension system and a non-nucleophilic solvent-assisted dyeing system. ORCIDAlan Y.L. Tang https://orcid.org/0000-0003-3003-700X Chi-wai Kan https://orcid.org/0000-0002-7668-2410

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Section: Early Development Of a Solvent‐assisted Dyeing System On Cotmentioning

confidence: 99%

Section: Future Research Recommendations and Directionsmentioning

confidence: 99%

Non‐aqueous dyeing of cotton fibre with reactive dyes: A review

Tang

Kan

2020

Coloration Technology

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“…21,22 The reasons for the preference for cotton, which has the largest production share among natural fibers, 23 are its high strength, softness, biodegradability, biocompatibility, hydrophilicity, breathability, and lack of static electricity. 24,25…”

Section: Introductionmentioning

confidence: 99%

Oxygen-enriched Nanobubbles for a Green Reactive Washing Process

Aniş

Toprak-Cavdur

Çalışkan

2022

AATCC Journal of Research

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In this study, we used the new nanobubbles technology to create a green reactive washing process for the textile industry, as one of the most polluting sectors where environmentally friendly process designs are indispensable to protect the environment. With this technology, the possibility of eliminating the soaping-off step from the reactive washing sequence was investigated. For the design of an environmentally friendly reactive washing process, the effects of increasing the process temperature of the soaping-off step as well as the use of oxygen-enriched NBs in all washing steps after reactive dyeing with three different dyes were investigated. The results were evaluated by comparing the color coordinates, strength, and fastness of dyed cotton towels washed according to the conventional and alternative processes as well as examining the absorbance and chemical oxygen demand values of the washing baths. Alternative washings did not cause significant differences in color coordinates, while the lowest color strength and highest fastness values were obtained after washing with nanobubbles. The absorbance graphs showed that the most colorful baths belonged to the first bath of the nanobubble washing regime. Chemical oxygen demand measurements revealed that the alternative washing systems were more environmentally friendly than the conventional ones. Based on the results of this study, we concluded that it was possible to implement more eco-friendly washing methods by eliminating the use of soap.

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“…[1][2][3] This behavior has an important impact on their applications in textile, biological, colloid and other elds. [4][5][6] Among the various types of dyes, azo reactive dyes used for cellulose ber dyeing and printing have drawn special attention because of their variety and bright color. However, reactive dyes tend to aggregate in solutions due to their good planarity.…”

Section: Introductionmentioning

confidence: 99%