Zhan Hongwu, Gong Weiwei, Zhang Yankang, Zou Yifei
School of Mechanical Engineering, Zhejiang University of Technology, Hangzhou, 310023, China.
Sci Rep. 2024 Dec 28;14(1):31289. doi: 10.1038/s41598-024-82706-y.
In recent years, inkjet digital printing technology has become a popular research area. This paper focuses on the spreading behavior of single ink drops on coated paper in digital inkjet printing. It explores the impact of ink drop spreading on monochromatic spectral reflectance, providing new insights for the theoretical development of spectral prediction models. The study involves constructing a spreading behavior model through theoretical modeling. Numerical simulations were conducted using the Volume of Fluid (VOF) method in Fluent software to assess the feasibility of the theoretical model. Finally, experimental fitting was used to validate the accuracy of the theoretical model. Considering the feathering effect in practical printing, a comprehensive monochromatic extended Clapper-Yule spectral prediction model was developed based on the spreading behavior of single ink drops. The prediction results of this model showed significant accuracy improvements in monochromatic spectral prediction compared to the traditional segmented Clapper-Yule model. This research offers new perspectives for spectral prediction and provides theoretical guidance for enhancing print image quality.
近年来，喷墨数字印刷技术已成为一个热门的研究领域。本文聚焦于数字喷墨印刷中单个墨滴在涂布纸上的铺展行为。探讨了墨滴铺展对单色光谱反射率的影响，为光谱预测模型的理论发展提供了新的见解。该研究通过理论建模构建铺展行为模型。使用Fluent软件中的流体体积（VOF）方法进行数值模拟，以评估理论模型的可行性。最后，通过实验拟合来验证理论模型的准确性。考虑到实际印刷中的羽化效应，基于单个墨滴的铺展行为开发了一个综合的单色扩展克拉珀 - 尤尔光谱预测模型。与传统的分段克拉珀 - 尤尔模型相比，该模型的预测结果在单色光谱预测方面显示出显著的精度提升。本研究为光谱预测提供了新的视角，并为提高印刷图像质量提供了理论指导。
