Effects of nozzle and fluid properties on the drop formation dynamics in a drop-on-demand inkjet printing

doi:10.1007/s10483-019-2514-7

Applied Mathematics and Mechanics (English Edition) ›› 2019, Vol. 40 ›› Issue (9): 1239-1254.doi: https://doi.org/10.1007/s10483-019-2514-7

Effects of nozzle and fluid properties on the drop formation dynamics in a drop-on-demand inkjet printing

A. B. AQEEL^1,2, M. MOHASAN¹, Pengyu LV¹, Yantao YANG¹, Huiling DUAN^1,3

1. State Key Laboratory for Turbulence and Complex Systems, Department of Mechanics and Engineering Science, Beijing Innovation Center for Engineering Science and Advanced Technology, College of Engineering, Peking University, Beijing 100871, China;
2. National University of Sciences and Technology, H-12, Islamabad, Pakistan;
3. Center for Applied Physics and Technology, Key Laboratory of High Energy Density Physics, and Inertial Fusion Sciences and Application Collaborative Innovation Center of Ministry of Education, Peking University, Beijing 100871, China

收稿日期:2018-12-10 修回日期:2019-03-06 出版日期:2019-09-01 发布日期:2019-09-10
通讯作者: Pengyu LV, Yantao YANG E-mail:lvpy@pku.edu.cn;yantao.yang@pku.edu.cn
基金资助:
Project supported by the National Natural Science Foundation of China (No. 11802004)

Effects of nozzle and fluid properties on the drop formation dynamics in a drop-on-demand inkjet printing

A. B. AQEEL^1,2, M. MOHASAN¹, Pengyu LV¹, Yantao YANG¹, Huiling DUAN^1,3

1. State Key Laboratory for Turbulence and Complex Systems, Department of Mechanics and Engineering Science, Beijing Innovation Center for Engineering Science and Advanced Technology, College of Engineering, Peking University, Beijing 100871, China;
2. National University of Sciences and Technology, H-12, Islamabad, Pakistan;
3. Center for Applied Physics and Technology, Key Laboratory of High Energy Density Physics, and Inertial Fusion Sciences and Application Collaborative Innovation Center of Ministry of Education, Peking University, Beijing 100871, China

Received:2018-12-10 Revised:2019-03-06 Online:2019-09-01 Published:2019-09-10
Contact: Pengyu LV, Yantao YANG E-mail:lvpy@pku.edu.cn;yantao.yang@pku.edu.cn
Supported by:
Project supported by the National Natural Science Foundation of China (No. 11802004)

摘要/Abstract

摘要： The droplet formation dynamics of a Newtonian liquid in a drop-on-demand (DOD) inkjet process is numerically investigated by using a volume-of-fluid (VOF) method. We focus on the nozzle geometry, wettability of the interior surface, and the fluid properties to achieve the stable droplet formation with higher velocity. It is found that a nozzle with contracting angle of 45° generates the most stable and fastest single droplet, which is beneficial for the enhanced printing quality and high-throughput printing rate. For this nozzle with the optimal geometry, we systematically change the wettability of the interior surface, i.e., different contact angles. As the contact angle increases, pinch-off time increases and the droplet speed reduces. Finally, fluids with different properties are investigated to identify the printability range.

关键词: inkjet printing, drop-on-demand (DOD), droplet formation, nozzle geometry, surface wettability, printability range

Abstract: The droplet formation dynamics of a Newtonian liquid in a drop-on-demand (DOD) inkjet process is numerically investigated by using a volume-of-fluid (VOF) method. We focus on the nozzle geometry, wettability of the interior surface, and the fluid properties to achieve the stable droplet formation with higher velocity. It is found that a nozzle with contracting angle of 45° generates the most stable and fastest single droplet, which is beneficial for the enhanced printing quality and high-throughput printing rate. For this nozzle with the optimal geometry, we systematically change the wettability of the interior surface, i.e., different contact angles. As the contact angle increases, pinch-off time increases and the droplet speed reduces. Finally, fluids with different properties are investigated to identify the printability range.

Key words: inkjet printing, drop-on-demand (DOD), droplet formation, nozzle geometry, surface wettability, printability range

中图分类号:

74A25

A. B. AQEEL, M. MOHASAN, Pengyu LV, Yantao YANG, Huiling DUAN. Effects of nozzle and fluid properties on the drop formation dynamics in a drop-on-demand inkjet printing[J]. Applied Mathematics and Mechanics (English Edition), 2019, 40(9): 1239-1254.

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Effects of nozzle and fluid properties on the drop formation dynamics in a drop-on-demand inkjet printing

Effects of nozzle and fluid properties on the drop formation dynamics in a drop-on-demand inkjet printing

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