Chinese painting is usually painted on Xuan paper (freehand brushwork is mostly painted on raw Xuan paper, which is characterized by the infiltration effect of ink), using various pigments and inks; In addition, calligraphy also needs ink, so you can take a closer look at the difference.
If it is printed matter, the general pattern has resolution, that is, the pattern is composed of small particles, which can be seen clearly with a magnifying glass.
The above hope can help you!