Effects of reactive dye structures on surface tensions and viscosities of dye solutions

Zhang, Kun; Xie, Ruyi; Fang, Kuanjun; Chen, Weichao; Shi, Zhen; Ren, Yanfei

doi:10.1016/j.molliq.2019.110932

Cited by 31 publications

(24 citation statements)

References 38 publications

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“…This effect is more prominent for SG ink as spirooxazines are more temperature-sensitive than naphthopyrans 18 – 20 . Zhang et al 24 studied the effects of reactive dye structures on the surface tensions and viscosities of dye solutions (waterborne). They found out that relatively large dye molecules can significantly increase the viscosity of the dye solution, i.e.…”

Section: Resultsmentioning

confidence: 99%

Effect of physical parameters and temperature on the piezo-electric jetting behaviour of UV-curable photochromic inks

Seipel

Nierstrasz

2020

Sci Rep

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Although resource-efficient processes like inkjet printing have a large potential to foster the development of smart and functional textiles, one bottleneck still is the development of functional inks. To make inkjet printing and UV curing given production techniques for smart and functional specialty products, e.g. photochromic textiles, deepened knowledge about the development, rheological behavior and jetting behavior of functional ink is needed. This paper focuses on the formulation and performance of UV-responsive and UV-curable inkjet inks, which are based on photochromic dyes and their application to produce UV-responsive textiles. Two commercial photochromic dyes—Reversacol Ruby Red (RR) and Sea Green (SG), which represent dyes of the naphthopyran and spirooxazine class, respectively, have been used to develop the inks. The photochromic inks are characterized according to their physical–chemical and rheological properties in respect to temperature. The influence of temperature on the drop formation of the inks in an industrial print head is analyzed using a high-speed camera, which reveals important information regarding challenges in ink jettability. It was found that the dye structure and type used in the ink can influence the jetting behavior of photochromic UV-curable ink. More pronounced temperature sensitivity of dyes can increase the temperature-related effects of drop formation as was observed for SG ink. The printability of the RR and SG inks is framed and underpinned by theoretical calculations of the Z number. Discrepancies are observed and discussed between existing theory of ink jettability and visual evaluation of the photochromic ink.

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Section: Resultsmentioning

confidence: 99%

Effect of physical parameters and temperature on the piezo-electric jetting behaviour of UV-curable photochromic inks

Seipel

Nierstrasz

2020

Sci Rep

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“…The aggregation has crucial influences on properties of solutions, especially highly concentrated solutions, which are usually used as raw materials for the industrial production processes such as fiber dyeing and printing and photoelectric thin film preparation [5][6][7][8][9][10][11][12][13][14][15]. Meanwhile, the surface tension and viscosity of the solutions are also important factors determining the properties of dye solutions [16], which would be affected by the dye molecular aggregation structure [17]. Therefore, it is necessary to investigate the aggregation structure and explore its relationship with surface tension and viscosity in high concentration dye solutions systematically using a simple model.…”

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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“…Generally, dyes with better molecular planarity are more likely to form aggregates. 9,10 Reactive dyes are the colours of choice to print cotton fabrics due to their bright colour, excellent applicability and wide colour gamut. [11][12][13] However, reactive dyes are prone to aggregate in aqueous solution especially at high concentration, 14 which can affect the xation rate of the nished product.…”

Section: Introductionmentioning

confidence: 99%

“…The surface tension and viscosity of the dye solutions are also two important parameters which can inuence on the dyeing and printing. 15 Adding a suitable organic solvents to the dye solution could improve the quality of inkjet printing 10,16 by not only increases the solubility of dye molecules but also adjusting the surface tension and viscosity parameters. Therefore, it is of primary importance to study the interaction mechanism between the organic solvents and reactive dyes.…”

Section: Introductionmentioning

confidence: 99%

Effect of ethylene glycol and its derivatives on the aggregation properties of reactive Orange 13 dye aqueous solution

Xie

et al. 2020

RSC Adv.

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Effects of reactive dye structures on surface tensions and viscosities of dye solutions

Cited by 31 publications

References 38 publications

Effect of physical parameters and temperature on the piezo-electric jetting behaviour of UV-curable photochromic inks

Effect of physical parameters and temperature on the piezo-electric jetting behaviour of UV-curable photochromic inks

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

Effect of ethylene glycol and its derivatives on the aggregation properties of reactive Orange 13 dye aqueous solution

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