charcoal

Ingredients

wood

Preparation Steps

Original Recipe Text

Approximately 3 kg of wood charcoal was processed. The material was first crushed with a hammer, then ground in a dry blender. It was then refined using a mortar and pestle. To achieve the finest possible particles for ink formulation, the powder was sieved using a sieve shaker to isolate a 45µm particle size (Section 2.1, p. 3).

Evidence

"Charcoal was obtained in a bulk of wood approximately about 3 kg and was rich black in colour. First, the material was crushed using a hammer before grinding it by using a dry blender. Then, the course powdered charcoal was further grinded using mortar and pestle."

Remarks

The charcoal pigment is characterized by shades of dark grey rather than the deep black of lampblack (Section 3.3, p. 6). While it showed promising results for darkness compared to graphene, its larger particle size (45µm) made it less effective than lampblack (Section 3.3, p. 6).