A novel green approach for dyeing polyester using glycerine based eutectic solvent as a dyeing medium

Pawar, Sushant S.; Maiti, Saptarshi; Biranje, Santosh; Kulkarni, Kedar; Adivarekar, Ravindra V.

doi:10.1016/j.heliyon.2019.e01606

Cited by 25 publications

(17 citation statements)

References 31 publications

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“…The use of glycerol, especially crude glycerol that could be reused or recycled in the textile industry, favors finding new uses of glycerol. The textile industry could save enormous amounts of water resources, eliminate the use of toxic specialty chemicals, promote more environmentally friendly and sustainable practices, and reduce costs (Pawar et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Soybean Oil and Nonthermal Plasma Pretreatment to Dye Para‐Aramid Woven Fabrics with Disperse Dye Using a Glycerol‐Based Dye Bath

Morris

Doona

2021

J Americ Oil Chem Soc

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High-performance para-aramid fibers offer a number of uses as strong, lightweight materials for protective vests, helmets, tires, and other applications. The chemically inert nature of the fibers makes them difficult to dye or durably print by conventional dyeing techniques for textiles, and solution dyeing during production of the fibers can limit the color of para-aramid fabrics to the color of the spun yarn prior to weaving or knitting and thereby limit the practical applications of these textiles as protective outerwear. This study presents a new method developed to improve the dyeing of woven para-aramid fabrics with a disperse dye. Specifically, sequential experimentation proves the beneficial effects of first soaking para-aramid fabrics in soybean oil followed by surface treatment with atmospheric nonthermal plasma and using glycerol as the dispersant and sodium chloride as an electrolyte without the addition of other auxiliary chemicals. Under the optimized treatment conditions of this study, the color strength (K/S value) of dyed para-aramid fabrics increased to 3.89 from 0.35 of the untreated samples as determined from spectral analysis of the sample reflectance in the visible range. Fourier transform infrared spectroscopy analysis revealed that the high content of unsaturated fatty acids in soybean oil and their interaction with reactive species in the ambient nonthermal plasma were the primary factors for improving the color strength of the dyed para-aramid fabrics.

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Section: Introductionmentioning

confidence: 99%

Soybean Oil and Nonthermal Plasma Pretreatment to Dye Para‐Aramid Woven Fabrics with Disperse Dye Using a Glycerol‐Based Dye Bath

Morris

Doona

2021

J Americ Oil Chem Soc

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“…Therefore, the objective of this study is to dye para-aramid textiles with a cationic dye using renewable materials and an environmentally friendly technology (NTP). Additionally, since the trend in the textile dyeing industry is to reduce or avoid the use and disposal of environmentally-unfriendly chemical additives [ 15 ], glycerol is used in this study as an alternative solvent to water or ethanol due to glycerol’s non-toxicity, low volatility and high boiling point (290 °C), all of which make glycerol environmentally safe and suitable for use in the textile dyeing industry [ 16 , 17 ]. Further, glycerol is also used in this study, because there is a current worldwide effort to valorize the excessive amount of crude glycerol that has been generated as a result of massive biodiesel production [ 18 , 19 , 20 , 21 ].…”

Section: Introductionmentioning

confidence: 99%

Dyeing Para-Aramid Textiles Pretreated with Soybean Oil and Nonthermal Plasma Using Cationic Dye

Morris

Doona

2021

Polymers

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The increasing use of functional aramids in a wide array of applications and the inert nature of aramids against conventional dye and print methods requires developing new dyeing methods. This study aims to use environmentally friendly method with a cationic dye as an alternative for dyeing para-aramid fabrics. Experiments used a multi-factorial design with functions of pretreatment, dye solvent (water and/or glycerol) and auxiliary chemical additives (swelling agent and surfactant) and a sequential experimentation methodology. The most effective dyeing procedures involved the following steps: (i) pretreatments of the fabrics with soybean oil and nonthermal plasma (NTP), (ii) using water at T = 100 °C as the dye solvent, and (iii) omitting other chemical additives. With a commercial cationic dye, these conditions achieved a color strength in K/S value of 2.28, compared to ~1 for untreated samples. FTIR analysis revealed that a functional network formed on the fibers and yarns of the fabrics by chemical reactions of excited plasma species with double bonds in the soybean oil molecules was responsible for significantly improving the color strength. These results extend the potential uses of a renewable material (soybean oil) and an environmentally friendly technology (NTP) to improve the dyeing of para-aramid textiles and reduce the use of harsh dye chemicals.

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“…In addition, the use of ethylene glycol and glycerin to replace the conventional water treatment as the solvent of alkaline solution has been applied to shorten the hydrolysis treatment time and increase the hydrophilicity and dyeability of PES [19]. A novel green approach for dyeing PES has been presented to minimize water consumption using a glycerin-based eutectic solvent as a dyeing medium [20].…”

Section: Introductionmentioning

confidence: 99%

Increased Comfort of Polyester Fabrics

et al. 2021

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The hydrophilicity of fibers is directly related to the comfort of a fabric and represents one of the most important aspects of a textile. Therefore, polyester (PES) modification has focused on an increase in moisture content and a subsequent improvement of the user’s experience. Based on the glycerol hygroscopic properties, the main objective has been the enhancement of the hydrophilicity of polyester by glycerol treatments. Furthermore, microwave irradiation and alkaline treatment have been applied, in order to increase glycerol adhesion. Treated PES samples were characterized by performing moisture content, negative ion, water diffusion and water vapor resistance analyses. The effect of different treatment conditions such as bath ratio (1/10 or 1/15), temperature (40, 60 or 100 °C), time (2 or 5 min) and microwave radiation intensity (300 or 500 W) was evaluated. The moisture content of treated PES results indicated that by decreasing the bath ratio and increasing the time and temperature the moisture gain can reach almost 14%, which can be easily related to increases in the weight of the fiber. The treatment with alkali was done and led to the highest moisture increase. Treatment with 500 W microwave irradiation led to higher glycerol retention after rinsing. Different experimental conditions were applied to the glycerol-treated PES fabrics, and a clear improvement in moisture content was obtained increasing the comfort. The results were compared with the ones obtained for cotton and wool, where the moisture is higher than non treated PES.

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A novel green approach for dyeing polyester using glycerine based eutectic solvent as a dyeing medium

Cited by 25 publications

References 31 publications

Soybean Oil and Nonthermal Plasma Pretreatment to Dye Para‐Aramid Woven Fabrics with Disperse Dye Using a Glycerol‐Based Dye Bath

Soybean Oil and Nonthermal Plasma Pretreatment to Dye Para‐Aramid Woven Fabrics with Disperse Dye Using a Glycerol‐Based Dye Bath

Dyeing Para-Aramid Textiles Pretreated with Soybean Oil and Nonthermal Plasma Using Cationic Dye

Increased Comfort of Polyester Fabrics

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