1. Bone marrow staining: use dyes containing bone marrow components, such as hematoxylin, alizarin red, magenta, etc. These dyes can combine with protein in bone marrow to make bones appear different colors.
2. Bone glue dyeing: Bone glue, as a dye, can penetrate into the subtle parts of the bone, making the surface of the bone translucent.
3. Natural dyes: Use natural plant dyes, such as myrrh, gentian and madder. These dyes can make bones appear different colors, but the dyeing time is very long.
4. Artificial dyes: Use synthetic dyes, such as ink and food coloring. These dyes can make bones appear bright colors, but we should pay attention to whether the chemical composition of dyes will cause damage to bones.
It should be noted that different dyes have different characteristics, so it is necessary to choose the appropriate dyes according to the specific situation when using them. In addition, you need to pay attention to protect your health during the dyeing process and avoid inhalation, ingestion or skin contact with dyes.