The principle of Chinese calligraphy with water book cloth is it really good to practice calligraphy with water book cloth?

The principle of ten thousand times water writing cloth is the special coating on the surface. When it is dry, the coating is opaque, which blocks the black under the cloth, so it is gray. When it meets water, it becomes transparent, making black cloth appear.

The advantage of writing with water-writing cloth is convenience and cleanliness. Practicing the structure and basic brushwork of Chinese characters is similar to practicing on paper. Of course, if you practice to a certain extent, you should turn to paper, because the running characteristics of pens on rice paper are different from those on cloth, and the influence of ink and water on pen transportation is also different.