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http://dx.doi.org/10.17703/JCCT.2022.8.2.337

Design of thermal inkjet print head with robust and reliable structure  

Kim, Sang-Hyun (Dept. of Mechanical Systems Eng, Hansung Univ)
Publication Information
The Journal of the Convergence on Culture Technology / v.8, no.2, 2022 , pp. 337-342 More about this Journal
Abstract
Although printing technology has recently been widely used in IT fields including displays and fuel cells, residual and thermal stress are generated by a manufacturing process of stacking the layers of the print head and result in the substrate deformation and nozzle plate crack, which may cause ink leaks or not be ejected onto a desired region. Therefore, in this paper, we propose a new design of thermal inkjet print head with a robust and reliable structure. Diverse types of inkjet print head such as a rib, pillar, support wall and individual feed hole are designed to reduce the deformation of the substrate and nozzle plate, and their feasibility is numerically investigated through FEA analysis. The numerical results show that the maximum stress and deformation of proposed print head dramatically drops to at least 40~50%, and it is confirmed that there is no nozzle plate cracks and ink leakage through the fabrication of pillar and support wall typed print head. Therefore, it is expected that the proposed head shape can be applied not only to ink ejection in the normal direction, but also to large-area printing technology.
Keywords
Inkjet Print Head; Robust Design; Nozzle Crack; Ink Leakage;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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