Defects, mildew, and corrosion of artwork often greatly reduce its value. Compared with the same calligraphy and painting that are seriously damaged, the value of well-preserved ancient calligraphy and painting sometimes differs by more than half.
Calligraphy and painting are one of the most important categories of collection. The calligraphy and paintings collected in national museums, libraries, and archives are stored in relatively good conditions, and there are dedicated personnel to systematically and scientifically protect them. How to preserve personal collections of calligraphy and paintings? The reporter interviewed Mr. Zhao Hongshan of the Provincial Museum about this.
Calligraphy and painting must be hung or displayed for a certain period of time. It is not advisable to hide them at the bottom of a box and not show them to others. Because people cannot know the potential changes in calligraphy and painting slowly, so the calligraphy and painting after mounting must be hung and displayed at intervals for a period of time. During the exhibition and hanging period, you should pay attention to the humidity of the air. If it rains continuously and the air humidity is particularly high, you can put the calligraphy and painting scrolls away first. For heating in winter, calligraphy and painting should be kept at a certain distance from heaters and chimneys. For cooling in summer, calligraphy and painting should be kept at a far distance from the air inlet of the air conditioner. The time for hanging calligraphy and painting exhibitions should not be too long. You can hang them twice a year, for 1 to 2 months each time.
The most suitable storage temperature for calligraphy and painting is 14°C to 18°C, and the most suitable relative humidity is 50 to 60°C. Such conditions are not conducive to the growth and reproduction of microorganisms and molds. To control humidity, mainly use desiccant color-changing silica gel or anhydrous calcium chloride. To control the temperature, air conditioning can be used to adjust the indoor temperature.