Solvent assisted reactive dyeing of cotton with high exhaustion in the absence of salt

Bleached cotton fabric was chemically modified (cationized)with natural amino acids extract obtained by acid hydrolysis (6N HCL) from soya bean seed waste, adding MgCl2 as an acid donor in the pad-dry-calendaring process to investigate the changes in textile properties and its dyeability with reactive dye in both a conventional alkaline dye bath and salt-free acidic dye bath. This modified cotton incorporates new functional groups producing [Formula: see text] in acid bath to obtain cationized cotton, rendering it to eco-friendly salt-free reactive dyeing at acceptable shade depth without much sacrifice of other textile-related properties. Bi-functional high exhaustion-type reactive dye shows better dye uptake than mono-functional cold brand as well as hot brand reactive dye. Moreover, the application of a specific dye fixing agent further improves surface color depth ( K/ S) of the soya-modified cotton fabric. The study of surface morphology of said chemically modified cotton substrate indicates a higher degree of surface deposition, that is, more anchorage of soya extracted amino acids on cotton fabric. Chemical anchorage as per the reaction scheme postulated for such modifications is verified with Fourier transform infrared spectroscopy. Finally, it is revealed that cotton treated with soya extract provides a new route of eco-friendly salt-free reactive dyeing with high exhaustion-type reactive dyes showing much higher dye uptake than the control cotton fabric.

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The effect of the textile industry dye bath additive EDTMPA on colour removal characteristics by ozone oxidation

Water Science & Technology ◽

10.2166/wst.2007.317 ◽

2007 ◽

Vol 55 (10) ◽

pp. 145-153 ◽

Cited By ~ 12

Author(s):

T. Ölmez ◽

I. Kabdaşlı ◽

O. Tünay

Keyword(s):

Organic Matter ◽

Textile Industry ◽

Reaction Rates ◽

Textile Dye ◽

Pseudo First Order Reaction ◽

Ozone Oxidation ◽

Reactive Dyeing ◽

First Order ◽

Organic Matter Oxidation ◽

Pseudo First Order

In this study, the effects of the phosphonic acid based sequestering agent EDTMPA used in the textile dye baths on colour and organic matter removal by ozone oxidation was experimentally investigated. Procion Navy HEXL dyestuff that has been commonly used for the reactive dyeing of cellulose fibers was selected as the model component. The organic matter oxidation by ozone was determined to obey the pseudo-first order kinetics as they are treated singly or in combination. COD removal rates obtained from pseudo-first order reaction kinetics showed that oxidation of Navy HEXL alone (0.0947 L/min) was faster than that of EDTMPA (0.0171 L/min) and EDTMPA with dye (0.0155 L/min) at pH 3.0. It was also found that reaction rates of single EDTMPA removal and EDTMPA and dye mixture removal increased as the reaction pH was increased from 3.0 to 10.5.

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Influence of MCT-β-cyclodextrin treatment on strength, reactive dyeing and third-hand cigarette smoke odor release properties of cotton fabric

Cellulose ◽

10.1007/s10570-017-1467-7 ◽

2017 ◽

Vol 24 (11) ◽

pp. 5233-5250 ◽

Cited By ~ 6

Author(s):

Jantip Setthayanond ◽

Chotima Sodsangchan ◽

Potjanart Suwanruji ◽

Porntip Tooptompong ◽

Ozan Avinc

Keyword(s):

Cigarette Smoke ◽

Cotton Fabric ◽

Reactive Dyeing

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Dyeing Properties of Natural Dyes Extracted from Turmeric and their Comparison with Reactive Dyeing

Research Journal of Textile and Apparel ◽

10.1108/rjta-12-04-2008-b001 ◽

2008 ◽

Vol 12 (4) ◽

pp. 1-11 ◽

Cited By ~ 26

Author(s):

Saima Umbreen ◽

Shaukat Ali ◽

Tanveer Hussain ◽

Rakhshanda Nawaz

Keyword(s):

Natural Dyes ◽

Dyeing Properties ◽

Reactive Dyeing

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Reuse of the water and salt of reactive dyeing effluent after electrochemical decolorisation

Coloration Technology ◽

10.1111/j.1478-4408.2011.00343.x ◽

2011 ◽

Vol 128 (1) ◽

pp. 36-43 ◽

Cited By ~ 9

Author(s):

Víctor López-Grimau ◽

María del Carmen Gutiérrez-Bouzán ◽

José Valldeperas ◽

Martí Crespi

Keyword(s):

Reactive Dyeing ◽

Dyeing Effluent

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Laccase-catalyzed enzymatic dyeing of cotton fabrics

Textile Research Journal ◽

10.1177/00405175211006937 ◽

2021 ◽

pp. 004051752110069

Author(s):

Rıza Atav ◽

Bürhan Buğdaycı ◽

Ömer Bozkurt ◽

Aylin Yıldız ◽

Elçin Güneş ◽

...

Keyword(s):

Experimental Studies ◽

Uv Protection ◽

Infrared Analysis ◽

Synthetic Dyes ◽

Protection Factor ◽

Knitted Fabrics ◽

Reactive Dyeing ◽

Dyeing Process ◽

Laccase Enzyme ◽

Color Reproducibility

As some synthetic dyes are regarded to be toxic, mutagenic and carcinogenic, the search for eco-friendly alternatives for the synthesis of dyes and coloration has gained importance. For this reason, this study focused on finding new eco-friendly alternatives for coloring cotton. 100% cotton knitted fabrics were subjected to enzymatic coloration using a commercial laccase enzyme and various precursors. After determining the colors, the effect of pH on the enzymatic dyeing process was investigated. Then the optimization of reaction conditions was also realized statistically for the precursors giving the best results in terms of color. With the aim of obtaining further improvements in color-yield values obtained in enzymatic dyeings, the effect of the pretreatment process and the use of ultrasound were also investigated. Furthermore, the reaction pathways in enzymatic coloration were explained and results were confirmed by means of Fourier Transformed Infrared analysis. As a result of experimental studies, red and lilac colors could be successfully obtained on cotton for the first time in the literature. In this way, the theoretical basis of enzymatic dye synthesis and dyeing of cotton was clarified comprehensively. Furthermore, technical (color reproducibility; washing, rubbing, light and perspiration-fastness values; and UV protection factor), economical (chemical, energy and water consumption required for dyeing (including aftertreatments) of 1 kg fabric) and ecological aspects of enzymatic dyeings were compared with reactive dyeing. According to the experimental results it was found that biological treatment alone was enough for wastewater of enzymatic coloring, while chemical treatment will also be needed in reactive dyeing wastewater. Furthermore, color reproducibility, evenness and UV protection properties of dyed samples were comparable with that of reactive dyeings. However, in terms of the fastness levels achieved, the enzymatic coloring was far behind the reactive dyeing.

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Reactive Dyeing of Electrospun Cellulose Nanofibers by Pad-steam Method

Chemical Research in Chinese Universities ◽

10.1007/s40242-021-1107-5 ◽

2021 ◽

Author(s):

Winges Fatima ◽

Muhammad Tarique ◽

Min Li ◽

Mingyi Chen ◽

Muzamil Khatri ◽

...

Keyword(s):

Cellulose Nanofibers ◽

Reactive Dyeing

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Renovation and Reuse of Reactive Dyeing Effluent by a Novel Heterogeneous Fenton System Based on Metal Modified PTFE Fibrous Catalyst/H2O2

International Journal of Photoenergy ◽

10.1155/2013/169493 ◽

2013 ◽

Vol 2013 ◽

pp. 1-10 ◽

Cited By ~ 5

Author(s):

Bing Li ◽

Yongchun Dong ◽

Zhizhong Ding ◽

Yiming Xu ◽

Chi Zou

Keyword(s):

Reactive Dyes ◽

Cotton Fabrics ◽

Molar Ratio ◽

The Novel ◽

Heterogeneous Fenton ◽

Reactive Dyeing ◽

Toc Removal ◽

Dyeing Effluent ◽

Fenton System

Cu-Fe bimetallic grafted polytetrafluoroethylene (PTFE) fiber complexes were prepared and optimized as the novel heterogeneous Fenton catalysts for the degradation of reactive dyes under UV irradiation. Cotton fabrics were dyed with three reactive dyes, namely, Reactive Red 195, Reactive Yellow 145, and Reactive Blue 222, in tap fresh water using exhaustion process. The spent dyeing effluents were then collected and degraded with the optimized Cu-Fe bimetallic grafted PTFE fiber complex/H2O2system. The treated dyeing effluents were characterized and reused for the dyeing of cotton fabrics through the same process. The effect of reuse process number on quality of the dyed cotton fabrics was examined. The results indicated that the Cu-Fe bimetallic modified PTFE fiber complex with a Cu/Fe molar ratio of 2.87 was found to be the most effective fibrous catalyst, which enhanced complete decolorization of the treated dyeing effluents with H2O2in 4 h. However, the TOC removal for the treated dyeing effluents was below 80%. The dyeing quality was not affected for three successive cycles. The increase in residual TOC value influences fourth dyeing cycle. Further TOC reduction of the treated effluents is needed for its repeated reuse in more than three dyeing cycles.

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