Translucency weight?

Toyen

I was wondering,

what kind of map goes into the translucency weight channel?

Let's say my character is wearing black eyeliner and I do not want it to be affected by the translucency color.

So my first guess was just a simple white image map with the black eyeliner on it symbolizing that the entire face should be affected by the translucency color (white) except for the eyeliner (black) but that does not seem to be doing anything.

How do I properly control translucency weight via a map then? If it's not black = no translucency, white = fully affected by translucent settings?