Numerical Modeling of the Motion and Interaction of a Droplet of an Inkjet Printing Process with a Flat Surface

Tofan, Tim; Kruggel‐Emden, Harald; Turla, Vytautas; Jasevičius, Raimondas

doi:10.3390/app11020527

Cited by 9 publications

(3 citation statements)

References 46 publications

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“…The numerical results by Tofan et al [22] were used to verify the results of the model used in this study. The chang in droplet velocities of both studies are given in figure 3 and it can be seen that the results are highly compatible.…”

Section: Model Verificationmentioning

confidence: 99%

Optimization analysis of the inkjet using the Taguchi method

Türkan

2023

Pamukkale J Eng Sci

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Inkjet printers are effective tools for combining high resolution with acceptable velocity and low cost output. In this study, the incompressible Navier-Stokes equations were used to investigate the weight change of the inkjet droplets for the two-phase flow. For the ink color black, red and blue, for the nozzle inlet radius 0.02, 0.03 and 0.04mm, and for the inlet velocity 0.2, 0.4 and 0.6 m/s were taken. Taguchi analysis was performed, and it was seen that the most effective parameter on ink weight was the inlet velocity. It has been determined that the optimum conditions for weight maximization are black color, 0.02mm nozzle radius and 0.6 m/s inlet velocity. After determining the optimum conditions, droplet flow analysis was numerically carried out with the Comsol program to detect the change in different colored inks. It showed that the droplet fluid amount was greater and the time it took to reach the target area was shorter for inks with higher density and viscosity. Mürekkep püskürtmeli yazıcılar, yüksek çözünürlüğü kabul edilebilir bir hızla birleştirmek ve düşük maliyet ile çıktı almak için etkili araçlardır. Bu çalışmada, iki fazlı akışda mürekkep püskürtmeli damlacıkların ağırlık değişimini araştırmak için sıkıştırılamazNavier-Stokes denklemleri kullanıldı. Mürekkep rengi için siyah, kırmızı ve mavi, kanal giriş yarıçapı için 0.02, 0.03 ve 0.04 mm ve giriş hızı için 0.2, 0.4 ve 0.6 m/s alınmıştır. Taguchi analizi yapılmış ve mürekkep ağırlığı üzerinde en etkili parametrenin giriş hızı olduğu görülmüştür. Ağırlık maksimizasyonu için optimum koşulların siyah renk, 0.02 mm kanal yarıçapı ve 0.6 m/s giriş hızı olduğu belirlenmiştir. Optimum koşullar belirlendikten sonra farklı renkli mürekkeplerdeki değişimi tespit etmek için Comsol programı ile sayısal olarak damlacık akış analizi incelenmiştir. Daha yüksek yoğunluk ve viskoziteye sahip mürekkepler için damlacık sıvı miktarının daha fazla olduğu ve hedef alana ulaşma süresinin daha kısa olduğu görülmüştür.

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Section: Model Verificationmentioning

confidence: 99%

Optimization analysis of the inkjet using the Taguchi method

Türkan

2023

Pamukkale J Eng Sci

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“…CC BY 4.0, and (g) droplet movement (i) during inkjet printing when the droplet is ejected from the nozzle and settles on the substrate and the shape change at different stages, (ii) highlighted inkjet droplet phases at different stages. Reproduced from [79]. CC BY 4.0.…”

Section: Droplet Formation and Impactmentioning

confidence: 99%

“…Once the droplet is released from the nozzle, it strikes the substrate, and this impact on solid nonporous substrate causes various flow patterns depending on the properties of the ink and the substrate. Droplet impact and spreading depend on ink and substrate properties, jetting velocity, and droplet size, as shown in figure 2(g) [79]. Understanding the dynamic impact and equilibrium sessile drop state is essential for optimizing inkjet printing quality [105,106].…”

Section: Droplet Formation and Impactmentioning

confidence: 99%

Additive manufacturing of micropatterned functional surfaces: a review

Chivate,

Zhou

2024

Int. J. Extrem. Manuf.

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Over the course of millions of years, nature has evolved to ensure survival and presents us with a myriad of functional surfaces and structures that can boast high efficiency, multifunctionality, and sustainability. What makes these surfaces particularly practical and effective is the intricate micropatterning that enables selective interactions with microstructures. Most of these structures have been realized in the laboratory environment using numerous fabrication techniques by tailoring specific surface properties. Of the available manufacturing methods, additive manufacturing (AM) has created opportunities for fabricating these structures as the complex architectures of the naturally occurring microstructures that far exceed the traditional ways. This paper presents a concise overview of the fundamentals of such patterned microstructured surfaces, their fabrication techniques, and diverse applications. A comprehensive evaluation of micro fabrication methods is conducted, delving into their respective strengths and limitations. Greater emphasis is placed on AM processes like inkjet printing and micro digital light projection printing due to the innate advantages of these processes to additively fabricate high resolution structures with high fidelity and precision. The paper explores the various advancements in these processes in relation to their use in microfabrication and also presents the recent trends in applications like the fabrication of microlens arrays, microneedles, and tissue scaffolds.

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