How to make ink by hand?

1, prepare raw materials. Raw material formula: carbon black, bone glue, phenol, borneol, swire oil and soda ash.

2.8 parts of glue and 0.4 part of soda ash were put in the pot for 8 hours. The worse the glue, the better. Generally, it is heated and boiled in a water bath.

3. After the glue is cured, add carbon black and grind it evenly 10 times. The finer the black paste, the better.

4. Dissolve Borneolum Syntheticum with alcohol, put it into the ground black paste together with phenol and Taikoo Oil, and stir well.

5. Add water, stir evenly, sieve and bottle to obtain ink.