The general situation of the production of ink is as follows:
We all know that in the maintenance of brushes, it is required that the brush needs to be washed and hung upside down to air dry naturally after writing.
If the ink is not completely dried, it may lead to the occurrence of ink leakage.
Xuan paper now generally has raw Xuan, cooked Xuan and half-cooked Xuan.
If learners often use the latter two or newspapers for daily practice, but use raw rice paper to write when creating, then the phenomenon of ink leakage may occur when they are not very familiar with the characteristics of raw rice paper.
This is also commonly said, and it is recommended that calligraphy learners should not always use newspapers for writing, but should experience the characteristics of various papers to further master writing skills.
The phenomenon of ink leakage is mainly in the two aspects of writing skills: using ink and moving the pen.
In the use of ink, if the ink is dipped too much, on the pen, if the writing speed is too slow, it will produce the phenomenon of ink leakage.
Therefore, it is necessary to try to combine the amount of ink dipped in daily practice with the speed of pen movement.
Wait a minute. 
All in all, in addition to the above situations, the phenomenon of ink leakage also requires learners to try and analyze specific situations in their daily learning in order to summarize experience.