I have porcelain works that are casted and fire at cone 10 , if I want to do black brush work and brush strokes on the surface, what type of ink/underglaze/overglaze would you recommend?

[Melimich]

Hi, I have problems trying to find the answers to this question. I want the "paint" I use to be something like China ink, but that it doesn't run and that fires well to cone 10 without loosing color. Thank you for your help!