Sumi-e: An Art Form based 100% in Nature
Years ago, a gallery owner told me that her uncle was a painter who suffered from bad health. She believed this was caused by the chemical art materials he used.
If you are a painter of Sumi-e (Japanese traditional ink painting), you are lucky! You will only use natural materials.
First of all, Sumi is a black ink stick made of soot and Nikawa (animal glue).