Indian ink
It is a type of black paint used for drawing calligraphy and drawing, and is traditionally used in various East Asian cultures. In Chinese, it is called 'Juk', and Korean 'Eat' is the transformation of the old sound of this Chinese character. You can put a little water on the ink and grind it to make ink. It is considered to be one of the sutras in addition to the inkpans, eclipse, and brushes. The soot, which was burnt in the eaten raw pine, was solidified by the glue solution. Generally, it uses glue of cattle and deer. It is strong because of strong adhesive force. It is weak in adhesion because it uses glue of Donggal Cream. In addition to black, there is blue, vermilion multicolored food. It is very expensive in China and is famous for the regent control of Ming Dynasty. It is made by mixing the glue obtained from the burea to the soot obtained by burning the traditional pine tree. However, in order to mass-produce, the food material distributed in Korea is mainly carbon, which is a petrochemical product, and is made by mixing gelatin having a glue ingredient therein.