I don't know of a any "1 step-self-weeding" paper for darks. I've heard of the IMAGE CLIP for darks, it could be the closest to what you're looking for. Good luck on your search, and hope you'll share with us your findings.

 

Self weeding? What do u mean? Are u looking for inkjet or laser? I have used some of the paper from transferpapercanada.com for darks and they were easy to weed. I believe it was the lasre 1 opaque and blue grid.

 

Joto Paper have trim-free paper for dark tshirts.

 

Are they inkjet or laser?

 

There is a bogus video on youtube showing a so called self weeding paper on a black shirt that was discussed here. I think the guy did it just to get hits to his video.