Study on Preparation and Property of Regenerated Liquid Reactive Dyes Regenerated Magenta

2014 ◽  
Vol 941-944 ◽  
pp. 445-449
Author(s):  
Hong Lin Yang ◽  
Wei Xiang ◽  
Guang Jie Chen
Keyword(s):  
Surface Tension ◽  
Inkjet Printing ◽  
Reactive Dyes ◽  
Reactive Dye ◽  
Deionized Water ◽  
Particle Sizes

The regenerated liquid reactive dye Regenerated Magenta had been prepared with the waste reactive ink of Jettex R Magenta in the process of digital inkjet printing. The effects of quality percentage of waste ink, cosolvent, pH regulator on the stabilities of Regenerated Magenta had been investigated. The results show that the Regenerated Magenta ink prepared with waste ink 26%, N-methyl-2-pyrrolidone 4%, THAM 1%, ethanediol 3% and deionized water 67% has good performances such as particle sizes, surface tension, viscosity and conductivity. The characteristics of Regenerated Magenta ink meet the demands of the ink for digital inkjet printing.

scholarly journals Dyeing Property and Adsorption Kinetics of Reactive Dyes for Cotton Textiles in Salt-Free Non-Aqueous Dyeing Systems

Polymers ◽  
2018 ◽  
Vol 10 (9) ◽  
pp. 1030 ◽  
Author(s):  
Jiping Wang ◽  
Yuanyuan Gao ◽  
Lei Zhu ◽  
Xiaomin Gu ◽  
Huashu Dou ◽  
...  
Keyword(s):  
Surface Tension ◽  
Adsorption Equilibrium ◽  
Aqueous Media ◽  
Reactive Dyes ◽  
Reactive Dye ◽  
Adsorption Rate ◽  
Order Kinetic ◽  
Cotton Textiles ◽  
Order Kinetic Model ◽  
Large Water

In recent years, new concepts in textile dyeing technology have been investigated which aim to decrease the use of chemicals and the emission of water. In this work, dyeing of cotton textiles with reactive dyes has been investigated in a silicone non-aqueous dyeing system. Compared with conventional aqueous dyeing, almost 100% of reactive dyes can be adsorbed on cotton textiles without using any salts in non-aqueous dyeing systems, and the fixation of dye is also higher (80%~90% for non-aqueous dyeing vs. 40%~50% for traditional dyeing). The pseudo-second-order kinetic model can best describe the adsorption and equilibrium of reactive dyes in the non-aqueous dyeing systems as well as in the traditional water dyeing system. In the non-aqueous dyeing systems, the adsorption equilibrium of reactive dyes can be reached quickly. Particularly in the siloxane non-aqueous dyeing system, the adsorption equilibrium time of reactive dye is only 5–10 min at 25 °C, whereas more time is needed at 60 °C in the water dyeing system. The surface tension of non-aqueous media influences the adsorption rate of dye. The lower the surface tension, the faster the adsorption rate of reactive dye, and the higher the final uptake of dye. As a result, non-aqueous dyeing technology provides an innovative approach to increase dye uptake under a low dyeing temperature, in addition to making large water savings.

scholarly journals The effect of viscosity and surface tension on inkjet printed picoliter dots

RSC Advances ◽  
2019 ◽  
Vol 9 (54) ◽  
pp. 31708-31719 ◽  
Author(s):  
Sarah Krainer ◽  
Chris Smit ◽  
Ulrich Hirn
Keyword(s):  
Surface Tension ◽  
Inkjet Printing ◽  
Liquid Viscosity

In this study, we investigated the effect of liquid viscosity and surface tension for inkjet printing on porous cellulose sheets.

Enhancing Dye-ability and Antibacterial Features of Silk through Pre-treatment with Chitosan

2013 ◽  
Vol 8 (3) ◽  
pp. 155892501300800 ◽  
Author(s):  
Mehrsa Hosseini ◽  
Majid Montazer ◽  
Rogheih Damerchely
Keyword(s):  
Antibacterial Properties ◽  
Reactive Dyes ◽  
Color Difference ◽  
Reactive Dye ◽  
Light Fastness ◽  
Chitosan Concentration ◽  
Washing Durability ◽  
Color Yield ◽  
Pre Treatment ◽  
Antibacterial Potential

Biopolymers are suitable replacement materials for different chemical processes. In this work, silk yarns were treated with different chitosan concentration and then dyed with mono and bi-functional reactive dyes. The color yield, color difference and color fastness to light and washing of the dyed silk yarns were evaluated. Also, the effects of chitosan concentration, type of the reactive dyes on dye uptake of samples were studied. The bi-functional reactive dye has a high adsorption compared to mono-functional ones. The silk yarn treated with 3% chitosan had higher K/S values, washing and light fastness. The effects of chitosan on the antibacterial properties of silk yarns against two kinds of bacteria: Staphylococcus aureus and Escherichia coli were investigated. The treated silk samples were found to have antibacterial potential due to the antibacterial property of chitosan. Scanning electron microscopy (SEM) photographs reveal the deposition of chitosan on the treated yarns. Washing durability, handle properties, and yellowness of treated and dyed samples were also investigated.

The effect of ink formulation on colorimetric properties of inkjet printing considering the impact of substrates

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Darya Ewaznezhad Fard ◽  
Saeideh Gorji Kandi ◽  
Marziyeh Khatibzadeh
Keyword(s):  
Surface Tension ◽  
Physical Properties ◽  
Inkjet Printing ◽  
Methyl Cellulose ◽  
Test Results ◽  
Viscosity Modifier ◽  
Content Type ◽  
Polymeric Compounds ◽  
The Impact ◽  
Ink Formulation

Purpose The purpose of this study is to investigate the changes in the performance of ink formulations caused by the addition of compounds that improve the ink’s physical properties to achieve an optimum formulation for inkjet printing, because of the importance and simplicity of this method. Design/methodology/approach Ink samples were formulated using Acid Red 14 as ink colorant, different percentages of polymeric compounds including polyvinyl alcohol (PVA), polyvinylpyrrolidone and Carboxy methyl cellulose (CMC) as viscosity modifier compounds and surfactant as the surface tension enhancer. Formulated samples were adjusted in terms of fluid physical properties e.g. viscosity, density and surface tension, and the effect of used compounds on the improvement of both physical and colorimetric properties such as viscosity, surface tension, colorimetric coordinates and lightfastness has been evaluated to achieve the optimum printing inks to be printed on three different substrates. Findings The experimental observations showed that CMC was the most compatible compound as the viscosity modifier as its viscosity value was in the printable range of 2–22 cP. Moreover, a flow-curve test was applied to the ink samples and their Newtonian behavior was approved. Based on the spectrophotometric test results of printed samples, the samples containing PVA provided acceptable lightfastness in comparison to other ink samples on every used substrate. Originality/value An optimum relation between colorimetric coordinates of the printed samples and ink formulation could be considered and achieved.

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

Molecules ◽  
2020 ◽  
Vol 25 (7) ◽  
pp. 1588 ◽  
Author(s):  
Huan Wang ◽  
Han Kong ◽  
Jie Zheng ◽  
Hui Peng ◽  
Chuangui Cao ◽  
...  
Keyword(s):  
Surface Tension ◽  
Great Influence ◽  
Reactive Dyes ◽  
Side Chain ◽  
Molecular Aggregation ◽  
Dye Molecules ◽  
High Concentration ◽  
Hydrophilic Group ◽  
Aggregation Structure ◽  
Dye Solutions

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.

scholarly journals Removal of the commercial reactive dye Procion Blue MX-7RX from real textile wastewater using the synthesized Fe2O3 nanoparticles at different particle sizes as a source of Fenton's reagent

2019 ◽  
Vol 1 (4) ◽  
pp. 1362-1371 ◽  
Author(s):  
Maha A. Tony ◽  
Shehab A. Mansour
Keyword(s):  
Particle Size ◽  
Textile Wastewater ◽  
Reactive Dye ◽  
Particle Sizes ◽  
Fe2o3 Nanoparticles ◽  
Dyeing Wastewater ◽  
Textile Dyeing ◽  
Fenton System ◽  
Textile Dyeing Wastewater

The aim of the present study was to signify the role of the particle size of an iron source in the photo-Fenton system for textile dyeing wastewater oxidation.

scholarly journals Jetting Performance of Polyethylene Glycol and Reactive Dye Solutions

Polymers ◽  
2019 ◽  
Vol 11 (4) ◽  
pp. 739 ◽  
Author(s):  
Zhiyuan Tang ◽  
Kuanjun Fang ◽  
Yawei Song ◽  
Fuyun Sun
Keyword(s):  
Surface Tension ◽  
Polyethylene Glycol ◽  
Production Efficiency ◽  
Hydrophobic Interactions ◽  
Reactive Dye ◽  
Droplet Formation ◽  
Visible Absorption ◽  
Fluid Behavior ◽  
Spherical Droplets ◽  
Dye Solutions

The jetting performance of dye inks determines the image quality, production efficiency, and lifetime of the print head. In the present study, we explored the jetting performance of mixed solutions of polyethylene glycol (PEG) and reactive dye by testing the visible absorption spectra, rheological properties, and surface tension, in addition to the observation of droplet formation. The results indicate that PEG macromolecules could change the aggregate groups of Red 218 molecules into smaller ones through hydrophobic interactions and separation effect. The addition of PEG into the dye solution increased the viscosity and decreased the surface tension. In the whole shear rate range tested, the 10% and 20% PEG400, as well as the 30% PEG200 dye solutions, showed good Newtonian fluid behavior. PEG macromolecules improved the droplet formation of the dye solutions. Increasing the PEG400 concentration to 30% and 40% resulted in elimination of the formation of satellites and the formation of ideal droplets at 10,000 Hz jetting frequency. A 30% PEG600-dye solution with the Z value of 4.6 formed the best spherical droplets at 10,000 Hz and produced perfect color images on cotton fabrics.

Molecular Dynamics Study of Anatase TiO2 Nanoparticles in Water and Vacuum Environments

2012 ◽  
Author(s):  
George Okeke ◽  
Robert B. Hammond ◽  
S. Joseph Antony
Keyword(s):  
Molecular Dynamics ◽  
Surface Tension ◽  
Surface Energy ◽  
Tio2 Nanoparticles ◽  
Anatase Tio2 ◽  
Particle Sizes ◽  
Metallic Oxides ◽  
Wide Range ◽  
Enhanced Properties ◽  
Dynamics Simulations

Nanoparticles are nanometer sized metallic oxides which possess enhanced properties that are desirable to a wide range of industries. In this study, we investigate structural and surface properties of anatase TiO2 nanoparticles in vacuum and water environments using molecular dynamics simulations. The particle sizes ranged from 2 to 6 nm and simulations were performed at 300 K. Surface energy of the particles in vacuum was seen to be higher than that of the particles in water by about 100% for the smaller particles (i.e. 2 and 3nm) and about 60% for the larger particles (i.e. 4 to 6 nm). Surface energy of the particles in both environments, is seen to increase to a maximum (optimum value) as the particle size increases after which no further significant increase is observed. In vacuum, studies carried out at temperatures ranging from 300–2500 K showed a high dependence of surface energy on temperature. The estimated surface tension of water is seen to agree quite well with that of experiments.

Liquid Capacitor Based on Hafnium Oxide

2019 ◽  
Vol 801 ◽  
pp. 211-216
Author(s):  
Muhammad Umair Khan ◽  
Gul Hassan ◽  
Muhammad Asim Raza ◽  
Jin Ho Bae
Keyword(s):  
Surface Tension ◽  
Tin Oxide ◽  
Indium Tin Oxide ◽  
Hafnium Oxide ◽  
Aqueous Electrolyte ◽  
Current Collector ◽  
Electrochemical Analysis ◽  
Deionized Water ◽  
Pdms Mold ◽  
X Ray

In this work, we synthesize Hafnium (IV) oxide (HfO2) ink from hafnium chloride (HfCl4) powder assisted with deionized water. The poly acrylic acid (PAA) is used as surfactant to decrease the surface tension. Conversion of HfCl4 into HfO2 was detected by Raman spectroscopy and energy dispersive X-ray spectroscopy (EDS) characterization techniques. This proposed ink can be easily synthesized at a low temperature. Using the synthesis ink, a liquid capacitor is proposed, which is tested for electrochemical analysis. Indium tin oxide (ITO) coated PET is used as bottom and top current collector electrode, polydimethylsiloxane (PDMS) mold is used as separator, and HfO2 ink is used as aqueous electrolyte. Liquid capacitor is also tested on different bending diameters using bending machine from flat down to 10 mm bending curvature, which shows a stable capacitor function.

Effects of Viscosity and Surface Tension of a Reactive Dye Ink on Droplet Formation

Langmuir ◽  
2020 ◽  
Vol 36 (32) ◽  
pp. 9481-9488 ◽  
Author(s):  
Zhiyuan Tang ◽  
Kuanjun Fang ◽  
Mohd Nadeem Bukhari ◽  
Yawei Song ◽  
Kun Zhang
Keyword(s):  
Surface Tension ◽  
Reactive Dye ◽  
Droplet Formation
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