What if a child learns calligraphy and gets covered in ink?

Um ... I'm afraid it's not easy to wash Ink is stable and does not wash off easily like other pigments. Actually, you can buy a girdle, which is the kind you use when cooking in the kitchen. Of course, you can also buy a towel and write on it with a brush dipped in water. If you don't know what brand of brush is good, you can find this article and read "Top Ten Brush Brands in China (with Brush Selection and Maintenance Methods)", hoping to help you.