Black Torch

I have a factory that creates new lighters. How can I make the midnight flame of a torch lighter black?

Green flames, red flames, and blue flames for it. I think it would be nice to have a midnight black flame erupted from the torch lighter. but I need some help from great chemistry who have an interest in fire.

The color you see the flame is a function of its temperature and what is burning. Since black is the absence of color, I do not think it possible to create a flame (which, by definition, emits visible light / color), who is black. A flame that does not emit any color would be a clear flame, not a black flame. But if I'm wrong, and you can find out, I'll buy one!

Black Torch

Black Torch