The main reason for ink running is ink, and the lack of glue in ink is the direct reason for ink running during mounting.
Good calligraphy works should be written with freshly ground ink, which is sticky enough and will not flow away when mounted. If you write directly with bottled ink on the market, even the best brand is in danger of losing ink. The worse the quality, the more serious the ink loss. In addition, some people use Su Mo to write, and the ink will drop when mounting.
If not, leave it alone. Can't recover.
In order to avoid ink leakage during mounting, the original master usually folds the calligraphy and painting before mounting and puts it in a pot for 5 minutes. After steaming, the firmness of ink will be enhanced, and the problem of ink leakage can be avoided. I hope I can help my friends!