Development of colors with sustainability: a comparative study between dyeing of cotton with reactive and vat dyestuffs

Rosa, Jorge Marcos; Tambourgi, Elias Basile; Santana, José Carlos Curvelo; Araújo, Maurício Campos; Ming, Wan Chi; Trindade, Nelson Barros

doi:10.1177/0040517513517962

Cited by 31 publications

(13 citation statements)

References 14 publications

(18 reference statements)

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“…To assess color reproducibility, the color differences in fabrics dyed with three reactive dyes and rinsed with various rinsing effluents were evaluated using the CIELAB color space model [47]. For fabrics dyed with RR239 and RY176, the ozonation time for reclamation of the spent rinsing effluents before recycling was set at 40 min, while other treatment conditions were unchanged.…”

Section: Resultsmentioning

confidence: 99%

Removal of Reactive Dyes in Textile Effluents by Catalytic Ozonation Pursuing on-Site Effluent Recycling

Shang

Chiu

2019

Molecules

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The textile wash-off process consumes substantial amounts of water, which generates large volumes of wastewater that pose potential pollution issues for the environment. In the present study, catalytic ozonation was applied to degrade residual dyes present in rinsing effluents from wash-off processes towards the aim of recycling the waste effluents. A magnetic catalyst was prepared for promoting dye degradation by catalytic ozonation. Via a hydrothermal reaction, highly magnetic manganese ferrite (MnFe2O4) particles were successfully loaded on carbon aerogel (CA) materials (MnFe2O4@CA). The results showed that the developed catalyst strikingly promoted the degradation of dye contaminants by catalytic ozonation, in terms of color removal and reduction of chemical oxidation demand (COD) in rinsing effluents. COD removal efficiency in catalytic ozonation was enhanced by 25% when compared with that achieved by ozonation alone under the same treatment conditions. Moreover, we confirmed that after catalytic ozonation, the rinsing effluents could be recycled to replace fresh water without any evident compromise in the color quality of fabrics. The color difference (ΔEcmc(2:1)) between fabrics treated with recycled effluents and water was not more than 1.0, suggesting that the fabrics treated with recycled effluents displayed acceptable color reproducibility. Although colorfastness and color evenness of fabrics treated with recycled effluents were slightly poorer than those of fabrics treated with water, they were still within the acceptable tolerance. Therefore, the present study validated that catalytic ozonation was a promising technology for saving water and wastewater elimination in textile dyeing. It provides a feasibility assessment of catalytic ozonation for recycling waste effluents to reduce water dependence in textile production. Furthermore, we show a new perspective in on-site recycling waste effluents by catalytic ozonation and enrich the knowledge on feasible approaches for water management in textile production.

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Section: Resultsmentioning

confidence: 99%

Removal of Reactive Dyes in Textile Effluents by Catalytic Ozonation Pursuing on-Site Effluent Recycling

Shang

Chiu

2019

Molecules

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“…As listed in Table 2 , F1-r3, F2-r3, F3-r3 and F4-r3 possessed lower L* but higher a* and b* than those of the reference fabric F5-r3. This indicated these 4 fabrics which had been rinsed with recycled effluents were slightly darker, greener and yellower in shade than F5-r3, according to the three-dimensional CIELAB color space system [ 43 ]. The variations of color parameters were mainly a consequence of the impact from the oxidation by-products from dye degradation in recycled effluents.…”

Section: Resultsmentioning

confidence: 99%

Minimizing Freshwater Consumption in the Wash-Off Step in Textile Reactive Dyeing by Catalytic Ozonation with Carbon Aerogel Hosted Bimetallic Catalyst

Shang

Tao

et al. 2018

Polymers

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Abstract:In textile reactive dyeing, dyed fabrics have to be rinsed in the wash-off step several times to improve colorfastness. Thus, the multiple rinsing processes drastically increase the freshwater consumption and meanwhile generate massive waste rinsing effluents. This paper addresses an innovative alternative to recycle the waste effluents to minimize freshwater consumption in the wash-off step. Accordingly, catalytic ozonation with a highly effective catalyst has been applied to remedy the waste rinsing effluents for recycling. The carbon aerogel (CA) hosted bimetallic hybrid material (Ag-Fe 2 O 3 @CA) was fabricated and used as the catalyst in the degradation of residual dyes in the waste rinsing effluents by ozonation treatments. The results indicate the participation of Ag-Fe 2 O 3 @CA had strikingly enhanced the removal percentage of chemical oxidation demand by 30%. In addition, it has been validated that waste effluents had been successfully reclaimed after catalytic ozonation with Ag-Fe 2 O 3 @CA. They could be additionally reused to reduce freshwater consumption in the wash-off step, but without sacrificing the color quality of corresponding fabrics in terms of color difference and colorfastness. This study may be the first to report the feasibility of catalytic ozonation in minimization of freshwater consumption in the wash-off step in textile reactive dyeing.

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“…The K.S -1 was determined using the Kubelka-Munk equation (Equation 2), in which R means the re ectance of the samples (Rosa et al, 2014;Rosa et al, 2020).…”

Section: Dyeing Process Designmentioning

confidence: 99%

“…According to suppliers, C.I. Reactive Black 5 (RB5) dyestuff, which is the focus of this study, is the most marketed dyestuff in the world and consequently causes the most environmental pollution (Rosa et al, 2014;Rosa et al, 2020). It is a homobifunctional azo dye with vinyl sulfone as its reactive group, CAS Number 17095-24-8, and a molecular weight of 991.82 g mol − 1 .…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, developing and applying techniques that optimize the fabric dyeing process are necessary to minimise the chemicals and water used, process costs, and environmental impacts, while maintaining the quality of textile products (Rosa et al, 2015;Rosa et al, 2020). The Kubelka-Munk model is one of the most popular method (Rosa et al, 2014) employed in the optimization of dyeing processes.…”

Section: Introductionmentioning

confidence: 99%

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Modeling and Optimization of Reactive Cotton Dyeing Using Response Surface Methodology Combined with Artificial Neural Network

Rosa

Guerhardt

Júnior

et al. 2021

Preprint

Self Cite

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This work explores the modeling and optimization of the conditions to obtain a set of blue pigments for dyeing reactive cotton, by means of an approach that combines the techniques response surface methodology (RSM) and artificial neural network (ANN). By means of RSM technique the interactions and the effects of the main process variables (factors) on the behavior of coloristic intensity (K.S-1) were investigated. For this, a 26 central composite rotational design (CCRD) was carried out considering the factors temperature, NaCl, Na2CO3, NaOH, processing time and RB5 concentration. The results obtained show that all investigated factors have considerable effect on the behavior of K.S-1. The data produced in the dyeing experiments were used to build and train a Multilayer Perceptron ANN (MLP-ANN) to predict K.S-1, being the input layer of the MLP-ANN designed according to the results achieved by the RSM. The non-linear behavior of dyeing with RB5 was successfully modeled by a three-layer MLP-ANN comprising 6 input neurons, 15 hidden neuros, and 1 output neuron to indicate the value of K.S-1. The results achieved in the performed simulations confirmed the ANN effectiveness to predict K.S-1 values in RB5 the dyeing process, with high coefficient of determination (R2=0.942). The developed approach allowed the composition of a table containing optimized conditions to obtain a set of colors of the blue palette using RB5 dye, varying from sky blue to oxford blue, which will facilitate the assembly of the dyes. Finally, the experiments conducted in this work allowed the development of a computational tool to support the dyeing process, saving chemical inputs and time in cotton dyeing with specific dyestuff.

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Development of colors with sustainability: a comparative study between dyeing of cotton with reactive and vat dyestuffs

Cited by 31 publications

References 14 publications

Removal of Reactive Dyes in Textile Effluents by Catalytic Ozonation Pursuing on-Site Effluent Recycling

Removal of Reactive Dyes in Textile Effluents by Catalytic Ozonation Pursuing on-Site Effluent Recycling

Minimizing Freshwater Consumption in the Wash-Off Step in Textile Reactive Dyeing by Catalytic Ozonation with Carbon Aerogel Hosted Bimetallic Catalyst

Modeling and Optimization of Reactive Cotton Dyeing Using Response Surface Methodology Combined with Artificial Neural Network

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