Alkaline Hydrolysis and Dyeing Characteristics of Sea-Island-Type Ultramicrofibers of PET Tricot Fabrics with Black Disperse Dye

Kang, Jeong Min; Kim, Min Gu; Lee, Ji Eun; Ko, Jae Wang; Kim, Il Jin; Lee, Jae Yeon; Lee, Dong Jin; Ko, Seong Ik; Jung, Do Hyun; Lee, Seung Geol

doi:10.3390/polym12061243

Cited by 8 publications

(7 citation statements)

References 23 publications

(27 reference statements)

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“…The carboxylic anion provides hydrophilicity [ 50 , 51 ], which caused the dispersant to be difficult to accumulate. The branch chain residue part grasped the dyed surface similar to a ‘‘bridge”, which established a finite adsorption interaction between the dispersant and disperse dye [ 52 ].…”

Section: Resultsmentioning

confidence: 99%

Effect of Dispersant on Disperse Dyeing in Silicone Waterless Dyeing System

et al. 2023

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Traditional water-based dyeing of polyester textiles usually generates burdensome processes and a great deal of wastewater, which can no longer meet the green and sustainable developments in the textile dyeing industry. In the silicone waterless dyeing system, polyester textiles can be dyed with disperse dye without water. However, the dyeing performance of polyester textiles is influenced by the dispersant. In this study, the relationship between the properties of dispersants and disperse dyeing performance was studied. When the amount of dispersant NNO (2-Naphthalenesulfonic acid) was 1.2%, the exhaustion of disperse red 177 and the final K/S value of the dyed fabric improved to 94.18% and 14.73, respectively. However, the exhaustion of disperse red 177 was reduced from 90.73% to 82.61%, and the final K/S value of the dyed fabric was decreased from 14.77 to 14.01 when the dosage of MF (Naphthalenesulfonic acid) was 1.2%. Compared with different dyeing systems, the final uptake of disperse red 177 was 93.81% and 94.18% in traditional water-based and silicone waterless dyeing systems and the K/S value of the dyed fabric was almost the same. The washing and rubbing fastness (wet and dry) of the dyed fabric were found to be at a level of 4 or 4–5, and the light fastness of the dyed fabric was 3–4. If only the dispersant was added in the silicone waterless dyeing system, there was no leveling problems on dyed samples. Moreover, the maximum absorption wavelength of disperse red 177 was not changed after adding the dispersant. With an increasing amount of dispersant NNO, the solubility of the dye in the silicone solvent decreased, but it increased with an increasing amount of dispersant MF. In the relationship between dye exhaustion and dye solubility in a silicone waterless dyeing system, the exhaustion of dye was linearly and inversely proportional to the dye solubility. A dispersant with better hydrophilicity can decrease the solubility of the dye in dyeing media, and the dyeing performance of dye is better. Compared with previous studies, the exhaustion of dye was consistent with the ClogP value (hydrophobic constant) of the dyeing accelerant. Therefore, a dispersant with high hydrophilicity can reduce the solubility of dye and improve the exhaustion of disperse dye in a silicone waterless dyeing system. Moreover, the color fastness of the dyed fabric did not change before and after adding the dispersant.

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Section: Resultsmentioning

confidence: 99%

Effect of Dispersant on Disperse Dyeing in Silicone Waterless Dyeing System

et al. 2023

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“…Due to their characteristics, disperse dyes have different adsorption and diffusion capacities on different types of fibers. 49,50 In this paper, only ordinary woven polyester fabric was selected for dyeing experiments with compound dyes, which had limitations in the diversity of dye-bearing fabrics. Thus the feasibility and applicability of this calculation and prediction method applied to other fibers need to be further explored in the future.…”

Section: Resultsmentioning

confidence: 99%

Quantum chemistry calculation and experimental research on the component proportion of black disperse dye

Qiu

Liu

2022

Textile Research Journal

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Black is a special color that has achromatic characteristics and shows a sought-after sense of mystery. Most of the black disperse dyes are compounded with multiple dyes. In this paper, a quantum chemical calculation method based on density functional theory and time-dependent density functional theory was proposed to predict the components’ proportion of black disperse dye. C.I. disperse blue 291, C.I. disperse red 73, and C.I. disperse orange 61 were selected as components of this black dye. After structure optimization and vertical excitation calculation of many other disperse dyes, and experimental tests of the maximum absorption wavelength of ultraviolet-visible, an equation between the calculated values and the experimental values was obtained by multiple regression analysis. This equation was used to correct the calculated spectrum of each target component. Then the combined spectrum of the three dyes was used to establish the prediction equation set, and the mixing proportion was calculated from this. Through verification of dyeing experiments and related tests, the new method in this study has a good result on the components’ proportion prediction of black disperse dye.

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“…The fabric worn next to skin should absorb sweat and facilitate heat exchange with the surroundings. For this reason, the modification of PET fibers is essential to raise the surface activity for better wettability, dyeability and adhesion (Pitchai et al , 2014; Dave et al , 2012; Dave et al , 2014; Min Kang et al , 2020)…”

Section: Introductionmentioning

confidence: 99%

“…The increasing demand for high-quality textile materials has resulted in the development of synthetic fibers. For example, the consumption of modified PET fibers has grown substantially in recent years (Min Kang et al , 2020).…”

Section: Introductionmentioning

confidence: 99%

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Improving the color strength of poly(ethylene terephthalate) fabrics with a turmeric natural dye

Zare

2022

PRT

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Purpose This study aims to enhance the dyeability of polyester fabrics with turmeric natural dyes through plasma and alkaline treatments. The aim is to achieve better color strength in dyed samples without significant changes in their other properties. This is done while the weight loss is kept in a range with no considerable effect on those properties. Design/methodology/approach The surface of a poly(ethylene terephthalate) fabric was modified using oxygen plasma at a low temperature. The alkaline hydrolysis of that polyester fabric was also done through treating it with an aqueous sodium hydroxide (NaOH) solution. The untreated and treated polyester fabrics were studied for the changes of their physical characteristics such as weight loss, wetting behavior, strength loss, bending length, flexural rigidity and K/S and wash fastness. The samples were treated with plasma and sodium hydroxide and dyed with a turmeric natural dye. Findings In comparison to the untreated sample, the plasma-treated, alkaline-treated and plasma treatment followed by alkaline hydrolysis polyester experienced 9.3%, 68.6% and 102.3% increase in its color depth as it was dyed with a turmeric natural dye, respectively. The plasma treatment was followed by alkaline hydrolysis. The improvement in the color depth could be attributed to the surface modification. Originality/value In this paper, investigations were conducted of the separate effects of plasma treatment and alkaline hydrolysis as well as their synergistic effect on the dyeing of the polyester fabric with a natural dye obtained from turmeric.

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Alkaline Hydrolysis and Dyeing Characteristics of Sea-Island-Type Ultramicrofibers of PET Tricot Fabrics with Black Disperse Dye

Cited by 8 publications

References 23 publications

Effect of Dispersant on Disperse Dyeing in Silicone Waterless Dyeing System

Effect of Dispersant on Disperse Dyeing in Silicone Waterless Dyeing System

Quantum chemistry calculation and experimental research on the component proportion of black disperse dye

Improving the color strength of poly(ethylene terephthalate) fabrics with a turmeric natural dye

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