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.

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.

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.

Experimental Investigation of Droplet Dynamics on Solid Surfaces: Spreading and Recoil Effects

2006 ◽  
Author(s):  
Kalpak P. Gatne ◽  
Milind A. Jog ◽  
Raj M. Manglik
Keyword(s):  
Surface Tension ◽  
High Speed ◽  
Lower Surface ◽  
Video Camera ◽  
Temporal Variations ◽  
Liquid Viscosity ◽  
Viscous Effects ◽  
Droplet Dynamics ◽  
Digital Video Camera ◽  
The Impact

A study of the normal impact of liquid droplets on a dry horizontal substrate is presented in this paper. The impact dynamics, spreading and recoil behavior are captured using a high-speed digital video camera at 2000 frames per second. A digital image processing software was used to determine the drop spread and height of the liquid on the surface from each frame. To ascertain the effects of liquid viscosity and surface tension, experiments were conducted with four liquids (water, ethanol, propylene glycol and glycerin) that have vastly different fluid properties. Three different Weber numbers (20, 40, and 80) were considered by altering the height from which the drop is released. The high-speed photographs of impact, spreading and recoil are shown and the temporal variations of dimensionless drop spread and height are provided in the paper. The results show that changes in liquid viscosity and surface tension significantly affect the spreading and recoil behavior. For a fixed Weber number, lower surface tension promotes greater spreading and higher viscosity dampens spreading and recoil. Using a simple scale analysis of energy balance, it was found that the maximum spread factor varies as Re1/5 when liquid viscosity is high and viscous effects govern the spreading behavior.

Surface Tension and Liquid Viscosity of R32+R1234yf and R32+R1234ze

2016 ◽  
Vol 61 (2) ◽  
pp. 950-957 ◽  
Author(s):  
Junwei Cui ◽  
Shengshan Bi ◽  
Xianyang Meng ◽  
Jiangtao Wu
Keyword(s):  
Surface Tension ◽  
Liquid Viscosity

Polychromatic Coloring of Dental Zirconia by Inkjet Printing

2019 ◽  
Author(s):  
Christoph Rehekampff ◽  
Dominik Rumschöttel ◽  
Franz Irlinger ◽  
Tim C. Lueth
Keyword(s):  
Surface Tension ◽  
Pore Size ◽  
Inkjet Printing ◽  
High Speed ◽  
Three Dimensional ◽  
Droplet Impact ◽  
High Speed Camera ◽  
Color Transition ◽  
Color Scale

Abstract To enable the development of an automated coloring process, dental zirconia is examined in terms of porosity, pore size and shrinkage during sintering. The properties of commercially available metal ionic inks such as viscosity, density and surface tension are investigated. Droplet impact on the zirconia surface and the absorption into the pores is analyzed with a high speed camera. The color result after sintering is investigated and compared to tooth samples. A method is developed to achieve a realistic, smooth color transition on flat zirconia samples. This is achieved by mixing the single inks directly on the zirconia through sequential application. Consequently, the number of different inks required to reproduce the full dental color scale can be reduced. Additionally, three dimensional tooth replacements are colored with the developed method.

Surface tension calculation from liquid viscosity data of silanes

2018 ◽  
Vol 463 ◽  
pp. 11-17 ◽  
Author(s):  
Giovanni Di Nicola ◽  
Mariano Pierantozzi ◽  
Sebastiano Tomassetti ◽  
Gianluca Coccia
Keyword(s):  
Surface Tension ◽  
Viscosity Data ◽  
Liquid Viscosity

The Effect of Type of Working Fluid on the Heat Transport Capacity of a Micro Heat Pipe

2005 ◽  
Author(s):  
Sugumar Dharmalingam ◽  
Kek Kiong Tio
Keyword(s):  
Surface Tension ◽  
Heat Pipe ◽  
Heat Transport ◽  
Operating Temperature ◽  
Working Fluid ◽  
Liquid Viscosity ◽  
Transport Capacity ◽  
Temperature Range ◽  
Controlling Effect ◽  
Micro Heat Pipe

In order to elucidate the effects of working fluid’s properties on the heat transport capacity of a micro heat pipe, 3 commonly used fluids are selected for this study: water, ammonia and methanol. From the results obtained, it shows that for operating temperatures lower than 50°C, ammonia is preferred, but if the operating temperature exceeds 50°C, water is more suitable in transferring heat. Over the temperature range of 20°C∼100°C, the behavior of the heat transport capacity is found to be dominated by a property which is the ratio of the working fluid’s surface tension and liquid viscosity. This property which has the dimension of velocity has a controlling effect on the working fluid’s rate of circulation and therefore, the heat transport capacity.

Sign in / Sign up

Export Citation Format

Share Document