Jetting performance of two lactam compounds in reactive dye solution

Wang, Rongqing; Fang, Kuanjun; Ren, Yanfei; Song, Yawei; Zhang, Kun; Bukhari, Mohd Nadeem

doi:10.1016/j.molliq.2019.111668

Cited by 17 publications

(24 citation statements)

References 51 publications

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“…Reactive dyes, one kind of important organic dyes, are mainly used for dyeing and printing natural fabrics [18]. These dye molecules contain water-soluble groups (usually sodium sulfonate), and have good water solubility [19], but the dye molecules still tend to aggregate by self-association of the hydrophobic π-π conjugated parts of the molecular structure [20][21][22][23][24], which will lead to the formation of dimers, trimers [25], etc. The aggregation of dyes dilute solution has been investigated by many methods, such as, polarography [26,27], conductometry [28,29], UV-Vis [30][31][32][33], NMR [34], light scattering [35][36][37] measurements.…”

Section: Introductionmentioning

confidence: 99%

Systematically Exploring Molecular Aggregation and Its Impact on Surface Tension and Viscosity in High Concentration Solutions

et al. 2020

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The aggregation structure of dye molecules has a great influence on the properties of dye solutions, especially in high concentration. Here, the dye molecular aggregation structures were investigated systemically in aqueous solutions with high concentration using three reactive dyes (O-13, R-24:1 and R-218). O-13 showed stronger aggregation than R-24:1 and R-218. This is because of the small non-conjugate side chain and its β-linked position on the naphthalene of O-13. Compared with R-218, R-24:1 showed relatively weaker aggregation due to the good solution of R-24:1. The change of different aggregate distributions in the solutions were also investigated by splitting the absorption curves. Moreover, it is found that the surface tension of solutions can be modified by the combined effect of both aggregation and the position of the hydrophilic group, which, however, also have an effect on viscosity. This exploration will provide guidance for the study of high concentration solutions.

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Section: Introductionmentioning

confidence: 99%

Systematically Exploring Molecular Aggregation and Its Impact on Surface Tension and Viscosity in High Concentration Solutions

et al. 2020

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“…Viscosity of all the tested solutions did not change with the shear rate, which belonged to Newtonian uid. 41,42 The viscosity of dye solutions depends mainly on the intermolecular forces. All the viscosities increased with the increase in the concentration of solvents.…”

Section: Dynamic Surface Tensionmentioning

confidence: 99%

Effects of alkanolamine solvents on the aggregation states of reactive dyes in concentrated solutions and the properties of the solutions

Cao

Zhao

et al. 2021

RSC Adv.

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“…The presence of aggregates in the dye solutions may influence their photophysical behavior, which can be detected from the shape of the absorption spectra in the visible region [29][30][31][32], so UV-Vis absorption spectroscopy is an important method for studies of the aggregation state [17][18][19][30][31][32][33][34]. Figure 2 shows the absorption spectra of the Blue 49 and Orange 13 dye solutions with different concentrations of DEG.…”

Section: Interaction Between Deg and Dyesmentioning

confidence: 99%

“…More aggregation can be found in deep-color dyeing, while highly concentrated dye concentration is needed. Too much aggregation may result in dye crystallization and precipitation, which leads to nozzle blockage during the ink-jet printing process [18,19]. This phenomenon is a major obstacle for ink-jet printing uniform images.…”

Section: Introductionmentioning

confidence: 99%

“…This phenomenon is a major obstacle for ink-jet printing uniform images. Much attention has been paid to suppressing the formation of aggregation through the understanding of the physical and chemical properties of reactive dyes, and the interactions of dyes and additives [16,17,[19][20][21][22][23][24]. Second, poor ink-jet droplet formation, such as satellite droplets, is also a serious problem that reduces the resolution of printed images [25][26][27].…”

Section: Introductionmentioning

confidence: 99%

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Interaction of Reactive-Dye Chromophores and DEG on Ink-Jet Printing Performance

2020

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Digital inkjet printing has been widely used in textile industry. The quality of dye solutions and ink-jet droplets limits the ink-jet printing performance, which is very important for obtaining high-quality ink-jet printing images on fabrics. In this paper, we introduced diethylene glycol (DEG) into the dye solutions of Reactive Blue 49 and Reactive Orange 13, respectively, and investigated the interaction between dye chromophores and DEG molecules. Results indicated that the dye chromophores were featured in the aggregation. Adding DEG into the dye solution could effectively disaggregate clusters of reactive dyes, and eliminate satellite ink droplets, thus improving the resolution of the ink-jet printing image on fabrics. Under the same DEG concentration, the disaggregation effect was more obvious in Orange 13 than in Reactive Blue 49. Higher DEG concentration was required in Reactive Orange 13 solution for creating complete and stable ink drops. The surface tension and viscosity of the dye solutions were measured, and printing performance on cotton fabrics was evaluated. The interaction mechanism between dye chromophores and DEG molecules was also investigated. Results from this work are useful for high-quality ink-jet printing images on fabrics.

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Jetting performance of two lactam compounds in reactive dye solution

Cited by 17 publications

References 51 publications

Systematically Exploring Molecular Aggregation and Its Impact on Surface Tension and Viscosity in High Concentration Solutions

Systematically Exploring Molecular Aggregation and Its Impact on Surface Tension and Viscosity in High Concentration Solutions

Effects of alkanolamine solvents on the aggregation states of reactive dyes in concentrated solutions and the properties of the solutions

Interaction of Reactive-Dye Chromophores and DEG on Ink-Jet Printing Performance

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