Abstract
It is important to understand behavior of ink penetration into paper for designing inkjet process which enable both high speed and high quality of print. However, there was no method to visualize the phenomena directly. In this study, to visual ize ink penet ration, the de vice based on optical coherence to mography has bee n developed. Optical coherence tomography is the technology acquiring cross-sectional images of objects in non-destructive observation. Ink penetration process has been observed as the time-va rying cross-sectional images of paper through the use of this device. In addition, quantitative evaluation of penetration around ink and paper has become available as displacement of boundary surface of penetration in cross-sectional images.
